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Commit | Line | Data |
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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 | ||
db2a4165 FM |
528 | /* Check that the codec and cpu DAI's are compatible */ |
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 | /* | |
877 | * Free's resources allocated by hw_params, can be called multiple times | |
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 FM |
900 | |
901 | /* now free hw params for the DAI's */ | |
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 | |
db2a4165 | 1008 | /* mute any active DAC's */ |
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 | ||
1404 | if (card->prefix_map == NULL) | |
1405 | return; | |
1406 | ||
1407 | for (i = 0; i < card->num_prefixes; i++) { | |
1408 | struct snd_soc_prefix_map *map = &card->prefix_map[i]; | |
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; | |
1612 | int ret = 0; | |
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 | } | |
1623 | break; | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | if (!try_module_get(codec->dev->driver->owner)) | |
1628 | return -ENODEV; | |
1629 | ||
1630 | codec->card = card; | |
1631 | codec->dapm.card = card; | |
1632 | ||
1633 | soc_set_name_prefix(card, codec); | |
1634 | if (codec->driver->probe) { | |
1635 | ret = codec->driver->probe(codec); | |
1636 | if (ret < 0) { | |
1637 | dev_err(codec->dev, "asoc: failed to probe CODEC"); | |
1638 | return ret; | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | soc_init_codec_debugfs(codec); | |
1643 | ||
1644 | /* mark codec as probed and add to card codec list */ | |
1645 | codec->probed = 1; | |
1646 | list_add(&codec->card_list, &card->codec_dev_list); | |
2eea392d JN |
1647 | |
1648 | /* now that all clients have probed, initialise the DAI link */ | |
1649 | if (aux_dev->init) { | |
1650 | /* machine controls, routes and widgets are not prefixed */ | |
1651 | temp = codec->name_prefix; | |
1652 | codec->name_prefix = NULL; | |
1653 | ret = aux_dev->init(&codec->dapm); | |
1654 | if (ret < 0) { | |
1655 | dev_err(codec->dev, | |
1656 | "asoc: failed to init %s\n", aux_dev->name); | |
1657 | return ret; | |
1658 | } | |
1659 | codec->name_prefix = temp; | |
1660 | } | |
1661 | ||
1662 | /* Make sure all DAPM widgets are instantiated */ | |
1663 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1664 | snd_soc_dapm_sync(&codec->dapm); | |
1665 | ||
1666 | /* register the rtd device */ | |
1667 | rtd->codec = codec; | |
1668 | rtd->card = card; | |
1669 | rtd->dev.parent = card->dev; | |
1670 | rtd->dev.release = rtd_release; | |
1671 | rtd->dev.init_name = aux_dev->name; | |
1672 | ret = device_register(&rtd->dev); | |
1673 | if (ret < 0) { | |
1674 | dev_err(codec->dev, | |
1675 | "asoc: failed to register aux runtime device %d\n", | |
1676 | ret); | |
1677 | return ret; | |
1678 | } | |
1679 | rtd->dev_registered = 1; | |
1680 | ||
1681 | /* add DAPM sysfs entries for this codec */ | |
1682 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1683 | if (ret < 0) | |
1684 | dev_err(codec->dev, | |
1685 | "asoc: failed to add codec dapm sysfs entries\n"); | |
1686 | ||
1687 | /* add codec sysfs entries */ | |
1688 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1689 | if (ret < 0) | |
1690 | dev_err(codec->dev, "asoc: failed to add codec sysfs files\n"); | |
1691 | ||
1692 | out: | |
1693 | return ret; | |
1694 | } | |
1695 | ||
1696 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1697 | { | |
1698 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1699 | struct snd_soc_codec *codec = rtd->codec; | |
1700 | int err; | |
1701 | ||
1702 | /* unregister the rtd device */ | |
1703 | if (rtd->dev_registered) { | |
1704 | device_unregister(&rtd->dev); | |
1705 | rtd->dev_registered = 0; | |
1706 | } | |
1707 | ||
1708 | /* remove the CODEC */ | |
1709 | if (codec && codec->probed) { | |
1710 | if (codec->driver->remove) { | |
1711 | err = codec->driver->remove(codec); | |
1712 | if (err < 0) | |
1713 | dev_err(codec->dev, | |
1714 | "asoc: failed to remove %s\n", | |
1715 | codec->name); | |
1716 | } | |
1717 | ||
1718 | /* Make sure all DAPM widgets are freed */ | |
1719 | snd_soc_dapm_free(&codec->dapm); | |
1720 | ||
1721 | soc_cleanup_codec_debugfs(codec); | |
1722 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1723 | codec->probed = 0; | |
1724 | list_del(&codec->card_list); | |
1725 | module_put(codec->dev->driver->owner); | |
1726 | } | |
1727 | } | |
1728 | ||
f0fba2ad LG |
1729 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1730 | { | |
1731 | struct platform_device *pdev = to_platform_device(card->dev); | |
1732 | int ret, i; | |
fe3e78e0 | 1733 | |
f0fba2ad | 1734 | mutex_lock(&card->mutex); |
dbe21408 | 1735 | |
f0fba2ad LG |
1736 | if (card->instantiated) { |
1737 | mutex_unlock(&card->mutex); | |
1738 | return; | |
1739 | } | |
fe3e78e0 | 1740 | |
f0fba2ad LG |
1741 | /* bind DAIs */ |
1742 | for (i = 0; i < card->num_links; i++) | |
1743 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1744 | |
f0fba2ad LG |
1745 | /* bind completed ? */ |
1746 | if (card->num_rtd != card->num_links) { | |
1747 | mutex_unlock(&card->mutex); | |
1748 | return; | |
1749 | } | |
435c5e25 | 1750 | |
f0fba2ad LG |
1751 | /* card bind complete so register a sound card */ |
1752 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1753 | card->owner, 0, &card->snd_card); | |
1754 | if (ret < 0) { | |
1755 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1756 | card->name); | |
1757 | mutex_unlock(&card->mutex); | |
1758 | return; | |
1759 | } | |
1760 | card->snd_card->dev = card->dev; | |
1761 | ||
1762 | #ifdef CONFIG_PM | |
1763 | /* deferred resume work */ | |
1764 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1765 | #endif | |
db2a4165 | 1766 | |
f0fba2ad LG |
1767 | /* initialise the sound card only once */ |
1768 | if (card->probe) { | |
1769 | ret = card->probe(pdev); | |
1770 | if (ret < 0) | |
1771 | goto card_probe_error; | |
1772 | } | |
fe3e78e0 | 1773 | |
f0fba2ad LG |
1774 | for (i = 0; i < card->num_links; i++) { |
1775 | ret = soc_probe_dai_link(card, i); | |
1776 | if (ret < 0) { | |
321de0d0 MB |
1777 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1778 | card->name, ret); | |
f0fba2ad LG |
1779 | goto probe_dai_err; |
1780 | } | |
1781 | } | |
db2a4165 | 1782 | |
2eea392d JN |
1783 | for (i = 0; i < card->num_aux_devs; i++) { |
1784 | ret = soc_probe_aux_dev(card, i); | |
1785 | if (ret < 0) { | |
1786 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1787 | card->name, ret); | |
1788 | goto probe_aux_dev_err; | |
1789 | } | |
1790 | } | |
1791 | ||
f0fba2ad LG |
1792 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1793 | "%s", card->name); | |
1794 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1795 | "%s", card->name); | |
1796 | ||
1797 | ret = snd_card_register(card->snd_card); | |
1798 | if (ret < 0) { | |
1799 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
1800 | goto probe_dai_err; | |
db2a4165 FM |
1801 | } |
1802 | ||
f0fba2ad LG |
1803 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1804 | /* register any AC97 codecs */ | |
1805 | for (i = 0; i < card->num_rtd; i++) { | |
1806 | ret = soc_register_ac97_dai_link(&card->rtd[i]); | |
1807 | if (ret < 0) { | |
1808 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1809 | goto probe_dai_err; | |
1810 | } | |
1811 | } | |
1812 | #endif | |
1813 | ||
1814 | card->instantiated = 1; | |
1815 | mutex_unlock(&card->mutex); | |
1816 | return; | |
1817 | ||
2eea392d JN |
1818 | probe_aux_dev_err: |
1819 | for (i = 0; i < card->num_aux_devs; i++) | |
1820 | soc_remove_aux_dev(card, i); | |
1821 | ||
f0fba2ad LG |
1822 | probe_dai_err: |
1823 | for (i = 0; i < card->num_links; i++) | |
1824 | soc_remove_dai_link(card, i); | |
1825 | ||
1826 | card_probe_error: | |
87506549 MB |
1827 | if (card->remove) |
1828 | card->remove(pdev); | |
f0fba2ad LG |
1829 | |
1830 | snd_card_free(card->snd_card); | |
1831 | ||
1832 | mutex_unlock(&card->mutex); | |
435c5e25 | 1833 | } |
db2a4165 | 1834 | |
435c5e25 | 1835 | /* |
421f91d2 | 1836 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1837 | * client_mutex. |
1838 | */ | |
1839 | static void snd_soc_instantiate_cards(void) | |
1840 | { | |
1841 | struct snd_soc_card *card; | |
1842 | list_for_each_entry(card, &card_list, list) | |
1843 | snd_soc_instantiate_card(card); | |
1844 | } | |
1845 | ||
1846 | /* probes a new socdev */ | |
1847 | static int soc_probe(struct platform_device *pdev) | |
1848 | { | |
f0fba2ad | 1849 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1850 | int ret = 0; |
435c5e25 MB |
1851 | |
1852 | /* Bodge while we unpick instantiation */ | |
1853 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1854 | INIT_LIST_HEAD(&card->dai_dev_list); |
1855 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1856 | INIT_LIST_HEAD(&card->platform_dev_list); | |
1857 | ||
a6052154 JN |
1858 | soc_init_card_debugfs(card); |
1859 | ||
435c5e25 MB |
1860 | ret = snd_soc_register_card(card); |
1861 | if (ret != 0) { | |
1862 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1863 | return ret; | |
1864 | } | |
1865 | ||
1866 | return 0; | |
db2a4165 FM |
1867 | } |
1868 | ||
1869 | /* removes a socdev */ | |
1870 | static int soc_remove(struct platform_device *pdev) | |
1871 | { | |
f0fba2ad | 1872 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1873 | int i; |
db2a4165 | 1874 | |
f0fba2ad | 1875 | if (card->instantiated) { |
914dc182 | 1876 | |
f0fba2ad LG |
1877 | /* make sure any delayed work runs */ |
1878 | for (i = 0; i < card->num_rtd; i++) { | |
1879 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1880 | run_delayed_work(&rtd->delayed_work); | |
b2dfa62c | 1881 | } |
db2a4165 | 1882 | |
2eea392d JN |
1883 | /* remove auxiliary devices */ |
1884 | for (i = 0; i < card->num_aux_devs; i++) | |
1885 | soc_remove_aux_dev(card, i); | |
1886 | ||
f0fba2ad LG |
1887 | /* remove and free each DAI */ |
1888 | for (i = 0; i < card->num_rtd; i++) | |
1889 | soc_remove_dai_link(card, i); | |
1890 | ||
a6052154 JN |
1891 | soc_cleanup_card_debugfs(card); |
1892 | ||
f0fba2ad | 1893 | /* remove the card */ |
b2dfa62c GL |
1894 | if (card->remove) |
1895 | card->remove(pdev); | |
db2a4165 | 1896 | |
f0fba2ad LG |
1897 | kfree(card->rtd); |
1898 | snd_card_free(card->snd_card); | |
1899 | } | |
c5af3a2e | 1900 | snd_soc_unregister_card(card); |
db2a4165 FM |
1901 | return 0; |
1902 | } | |
1903 | ||
416356fc | 1904 | static int soc_poweroff(struct device *dev) |
51737470 | 1905 | { |
416356fc | 1906 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1907 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1908 | int i; | |
51737470 MB |
1909 | |
1910 | if (!card->instantiated) | |
416356fc | 1911 | return 0; |
51737470 MB |
1912 | |
1913 | /* Flush out pmdown_time work - we actually do want to run it | |
1914 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1915 | for (i = 0; i < card->num_rtd; i++) { |
1916 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1917 | run_delayed_work(&rtd->delayed_work); | |
1918 | } | |
51737470 | 1919 | |
f0fba2ad | 1920 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1921 | |
1922 | return 0; | |
51737470 MB |
1923 | } |
1924 | ||
47145210 | 1925 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1926 | .suspend = soc_suspend, |
1927 | .resume = soc_resume, | |
1928 | .poweroff = soc_poweroff, | |
1929 | }; | |
1930 | ||
db2a4165 FM |
1931 | /* ASoC platform driver */ |
1932 | static struct platform_driver soc_driver = { | |
1933 | .driver = { | |
1934 | .name = "soc-audio", | |
8b45a209 | 1935 | .owner = THIS_MODULE, |
416356fc | 1936 | .pm = &soc_pm_ops, |
db2a4165 FM |
1937 | }, |
1938 | .probe = soc_probe, | |
1939 | .remove = soc_remove, | |
db2a4165 FM |
1940 | }; |
1941 | ||
1942 | /* create a new pcm */ | |
f0fba2ad LG |
1943 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1944 | { | |
1945 | struct snd_soc_codec *codec = rtd->codec; | |
1946 | struct snd_soc_platform *platform = rtd->platform; | |
1947 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1948 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1949 | struct snd_pcm *pcm; |
1950 | char new_name[64]; | |
1951 | int ret = 0, playback = 0, capture = 0; | |
1952 | ||
db2a4165 | 1953 | /* check client and interface hw capabilities */ |
40ca1142 | 1954 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1955 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1956 | |
f0fba2ad | 1957 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1958 | playback = 1; |
f0fba2ad | 1959 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1960 | capture = 1; |
1961 | ||
f0fba2ad LG |
1962 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1963 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1964 | num, playback, capture, &pcm); | |
db2a4165 | 1965 | if (ret < 0) { |
f0fba2ad | 1966 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1967 | return ret; |
1968 | } | |
1969 | ||
f0fba2ad | 1970 | rtd->pcm = pcm; |
db2a4165 | 1971 | pcm->private_data = rtd; |
f0fba2ad LG |
1972 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1973 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1974 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1975 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1976 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
1977 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
1978 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
1979 | |
1980 | if (playback) | |
1981 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1982 | ||
1983 | if (capture) | |
1984 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1985 | ||
f0fba2ad | 1986 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
1987 | if (ret < 0) { |
1988 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
1989 | return ret; |
1990 | } | |
1991 | ||
f0fba2ad | 1992 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
1993 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1994 | cpu_dai->name); | |
1995 | return ret; | |
1996 | } | |
1997 | ||
096e49d5 MB |
1998 | /** |
1999 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2000 | * | |
2001 | * @codec: CODEC to query. | |
2002 | * @reg: Register to query. | |
2003 | * | |
2004 | * Boolean function indiciating if a CODEC register is volatile. | |
2005 | */ | |
2006 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
2007 | { | |
f0fba2ad LG |
2008 | if (codec->driver->volatile_register) |
2009 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
2010 | else |
2011 | return 0; | |
2012 | } | |
2013 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2014 | ||
db2a4165 FM |
2015 | /** |
2016 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2017 | * @codec: audio codec | |
2018 | * @ops: AC97 bus operations | |
2019 | * @num: AC97 codec number | |
2020 | * | |
2021 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2022 | */ | |
2023 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2024 | struct snd_ac97_bus_ops *ops, int num) | |
2025 | { | |
2026 | mutex_lock(&codec->mutex); | |
2027 | ||
2028 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2029 | if (codec->ac97 == NULL) { | |
2030 | mutex_unlock(&codec->mutex); | |
2031 | return -ENOMEM; | |
2032 | } | |
2033 | ||
2034 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2035 | if (codec->ac97->bus == NULL) { | |
2036 | kfree(codec->ac97); | |
2037 | codec->ac97 = NULL; | |
2038 | mutex_unlock(&codec->mutex); | |
2039 | return -ENOMEM; | |
2040 | } | |
2041 | ||
2042 | codec->ac97->bus->ops = ops; | |
2043 | codec->ac97->num = num; | |
0562f788 MW |
2044 | |
2045 | /* | |
2046 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2047 | * device will be registered with the device subsystem later on. | |
2048 | */ | |
2049 | codec->ac97_created = 1; | |
2050 | ||
db2a4165 FM |
2051 | mutex_unlock(&codec->mutex); |
2052 | return 0; | |
2053 | } | |
2054 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2055 | ||
2056 | /** | |
2057 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2058 | * @codec: audio codec | |
2059 | * | |
2060 | * Frees AC97 codec device resources. | |
2061 | */ | |
2062 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2063 | { | |
2064 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2065 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2066 | soc_unregister_ac97_dai_link(codec); | |
2067 | #endif | |
db2a4165 FM |
2068 | kfree(codec->ac97->bus); |
2069 | kfree(codec->ac97); | |
2070 | codec->ac97 = NULL; | |
0562f788 | 2071 | codec->ac97_created = 0; |
db2a4165 FM |
2072 | mutex_unlock(&codec->mutex); |
2073 | } | |
2074 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2075 | ||
c3753707 MB |
2076 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2077 | { | |
2078 | unsigned int ret; | |
2079 | ||
2080 | ret = codec->driver->read(codec, reg); | |
2081 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); | |
a8b1d34f | 2082 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2083 | |
2084 | return ret; | |
2085 | } | |
2086 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2087 | ||
2088 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2089 | unsigned int reg, unsigned int val) | |
2090 | { | |
2091 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2092 | trace_snd_soc_reg_write(codec, reg, val); |
c3753707 MB |
2093 | return codec->driver->write(codec, reg, val); |
2094 | } | |
2095 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2096 | ||
db2a4165 FM |
2097 | /** |
2098 | * snd_soc_update_bits - update codec register bits | |
2099 | * @codec: audio codec | |
2100 | * @reg: codec register | |
2101 | * @mask: register mask | |
2102 | * @value: new value | |
2103 | * | |
2104 | * Writes new register value. | |
2105 | * | |
2106 | * Returns 1 for change else 0. | |
2107 | */ | |
2108 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2109 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2110 | { |
2111 | int change; | |
46f5822f | 2112 | unsigned int old, new; |
db2a4165 | 2113 | |
db2a4165 FM |
2114 | old = snd_soc_read(codec, reg); |
2115 | new = (old & ~mask) | value; | |
2116 | change = old != new; | |
2117 | if (change) | |
2118 | snd_soc_write(codec, reg, new); | |
2119 | ||
db2a4165 FM |
2120 | return change; |
2121 | } | |
2122 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2123 | ||
6c508c62 EN |
2124 | /** |
2125 | * snd_soc_update_bits_locked - update codec register bits | |
2126 | * @codec: audio codec | |
2127 | * @reg: codec register | |
2128 | * @mask: register mask | |
2129 | * @value: new value | |
2130 | * | |
2131 | * Writes new register value, and takes the codec mutex. | |
2132 | * | |
2133 | * Returns 1 for change else 0. | |
2134 | */ | |
dd1b3d53 MB |
2135 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2136 | unsigned short reg, unsigned int mask, | |
2137 | unsigned int value) | |
6c508c62 EN |
2138 | { |
2139 | int change; | |
2140 | ||
2141 | mutex_lock(&codec->mutex); | |
2142 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2143 | mutex_unlock(&codec->mutex); | |
2144 | ||
2145 | return change; | |
2146 | } | |
dd1b3d53 | 2147 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2148 | |
db2a4165 FM |
2149 | /** |
2150 | * snd_soc_test_bits - test register for change | |
2151 | * @codec: audio codec | |
2152 | * @reg: codec register | |
2153 | * @mask: register mask | |
2154 | * @value: new value | |
2155 | * | |
2156 | * Tests a register with a new value and checks if the new value is | |
2157 | * different from the old value. | |
2158 | * | |
2159 | * Returns 1 for change else 0. | |
2160 | */ | |
2161 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2162 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2163 | { |
2164 | int change; | |
46f5822f | 2165 | unsigned int old, new; |
db2a4165 | 2166 | |
db2a4165 FM |
2167 | old = snd_soc_read(codec, reg); |
2168 | new = (old & ~mask) | value; | |
2169 | change = old != new; | |
db2a4165 FM |
2170 | |
2171 | return change; | |
2172 | } | |
2173 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2174 | ||
db2a4165 FM |
2175 | /** |
2176 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2177 | * @substream: the pcm substream | |
2178 | * @hw: the hardware parameters | |
2179 | * | |
2180 | * Sets the substream runtime hardware parameters. | |
2181 | */ | |
2182 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2183 | const struct snd_pcm_hardware *hw) | |
2184 | { | |
2185 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2186 | runtime->hw.info = hw->info; | |
2187 | runtime->hw.formats = hw->formats; | |
2188 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2189 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2190 | runtime->hw.periods_min = hw->periods_min; | |
2191 | runtime->hw.periods_max = hw->periods_max; | |
2192 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2193 | runtime->hw.fifo_size = hw->fifo_size; | |
2194 | return 0; | |
2195 | } | |
2196 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2197 | ||
2198 | /** | |
2199 | * snd_soc_cnew - create new control | |
2200 | * @_template: control template | |
2201 | * @data: control private data | |
ac11a2b3 | 2202 | * @long_name: control long name |
db2a4165 FM |
2203 | * |
2204 | * Create a new mixer control from a template control. | |
2205 | * | |
2206 | * Returns 0 for success, else error. | |
2207 | */ | |
2208 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2209 | void *data, char *long_name) | |
2210 | { | |
2211 | struct snd_kcontrol_new template; | |
2212 | ||
2213 | memcpy(&template, _template, sizeof(template)); | |
2214 | if (long_name) | |
2215 | template.name = long_name; | |
db2a4165 FM |
2216 | template.index = 0; |
2217 | ||
2218 | return snd_ctl_new1(&template, data); | |
2219 | } | |
2220 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2221 | ||
3e8e1952 IM |
2222 | /** |
2223 | * snd_soc_add_controls - add an array of controls to a codec. | |
2224 | * Convienience function to add a list of controls. Many codecs were | |
2225 | * duplicating this code. | |
2226 | * | |
2227 | * @codec: codec to add controls to | |
2228 | * @controls: array of controls to add | |
2229 | * @num_controls: number of elements in the array | |
2230 | * | |
2231 | * Return 0 for success, else error. | |
2232 | */ | |
2233 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2234 | const struct snd_kcontrol_new *controls, int num_controls) | |
2235 | { | |
f0fba2ad | 2236 | struct snd_card *card = codec->card->snd_card; |
ead9b919 | 2237 | char prefixed_name[44], *name; |
3e8e1952 IM |
2238 | int err, i; |
2239 | ||
2240 | for (i = 0; i < num_controls; i++) { | |
2241 | const struct snd_kcontrol_new *control = &controls[i]; | |
ead9b919 JN |
2242 | if (codec->name_prefix) { |
2243 | snprintf(prefixed_name, sizeof(prefixed_name), "%s %s", | |
2244 | codec->name_prefix, control->name); | |
2245 | name = prefixed_name; | |
2246 | } else { | |
2247 | name = control->name; | |
2248 | } | |
2249 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, name)); | |
3e8e1952 | 2250 | if (err < 0) { |
082100dc | 2251 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
ead9b919 | 2252 | codec->name, name, err); |
3e8e1952 IM |
2253 | return err; |
2254 | } | |
2255 | } | |
2256 | ||
2257 | return 0; | |
2258 | } | |
2259 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2260 | ||
db2a4165 FM |
2261 | /** |
2262 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2263 | * @kcontrol: mixer control | |
2264 | * @uinfo: control element information | |
2265 | * | |
2266 | * Callback to provide information about a double enumerated | |
2267 | * mixer control. | |
2268 | * | |
2269 | * Returns 0 for success. | |
2270 | */ | |
2271 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2272 | struct snd_ctl_elem_info *uinfo) | |
2273 | { | |
2274 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2275 | ||
2276 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2277 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2278 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2279 | |
f8ba0b7b JS |
2280 | if (uinfo->value.enumerated.item > e->max - 1) |
2281 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2282 | strcpy(uinfo->value.enumerated.name, |
2283 | e->texts[uinfo->value.enumerated.item]); | |
2284 | return 0; | |
2285 | } | |
2286 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2287 | ||
2288 | /** | |
2289 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2290 | * @kcontrol: mixer control | |
ac11a2b3 | 2291 | * @ucontrol: control element information |
db2a4165 FM |
2292 | * |
2293 | * Callback to get the value of a double enumerated mixer. | |
2294 | * | |
2295 | * Returns 0 for success. | |
2296 | */ | |
2297 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2298 | struct snd_ctl_elem_value *ucontrol) | |
2299 | { | |
2300 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2301 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2302 | unsigned int val, bitmask; |
db2a4165 | 2303 | |
f8ba0b7b | 2304 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2305 | ; |
2306 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2307 | ucontrol->value.enumerated.item[0] |
2308 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2309 | if (e->shift_l != e->shift_r) |
2310 | ucontrol->value.enumerated.item[1] = | |
2311 | (val >> e->shift_r) & (bitmask - 1); | |
2312 | ||
2313 | return 0; | |
2314 | } | |
2315 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2316 | ||
2317 | /** | |
2318 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2319 | * @kcontrol: mixer control | |
ac11a2b3 | 2320 | * @ucontrol: control element information |
db2a4165 FM |
2321 | * |
2322 | * Callback to set the value of a double enumerated mixer. | |
2323 | * | |
2324 | * Returns 0 for success. | |
2325 | */ | |
2326 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2327 | struct snd_ctl_elem_value *ucontrol) | |
2328 | { | |
2329 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2330 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2331 | unsigned int val; |
2332 | unsigned int mask, bitmask; | |
db2a4165 | 2333 | |
f8ba0b7b | 2334 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2335 | ; |
f8ba0b7b | 2336 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2337 | return -EINVAL; |
2338 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2339 | mask = (bitmask - 1) << e->shift_l; | |
2340 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2341 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2342 | return -EINVAL; |
2343 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2344 | mask |= (bitmask - 1) << e->shift_r; | |
2345 | } | |
2346 | ||
6c508c62 | 2347 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2348 | } |
2349 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2350 | ||
2e72f8e3 PU |
2351 | /** |
2352 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2353 | * @kcontrol: mixer control | |
2354 | * @ucontrol: control element information | |
2355 | * | |
2356 | * Callback to get the value of a double semi enumerated mixer. | |
2357 | * | |
2358 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2359 | * used for handling bitfield coded enumeration for example. | |
2360 | * | |
2361 | * Returns 0 for success. | |
2362 | */ | |
2363 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2364 | struct snd_ctl_elem_value *ucontrol) | |
2365 | { | |
2366 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2367 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2368 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2369 | |
2370 | reg_val = snd_soc_read(codec, e->reg); | |
2371 | val = (reg_val >> e->shift_l) & e->mask; | |
2372 | for (mux = 0; mux < e->max; mux++) { | |
2373 | if (val == e->values[mux]) | |
2374 | break; | |
2375 | } | |
2376 | ucontrol->value.enumerated.item[0] = mux; | |
2377 | if (e->shift_l != e->shift_r) { | |
2378 | val = (reg_val >> e->shift_r) & e->mask; | |
2379 | for (mux = 0; mux < e->max; mux++) { | |
2380 | if (val == e->values[mux]) | |
2381 | break; | |
2382 | } | |
2383 | ucontrol->value.enumerated.item[1] = mux; | |
2384 | } | |
2385 | ||
2386 | return 0; | |
2387 | } | |
2388 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2389 | ||
2390 | /** | |
2391 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2392 | * @kcontrol: mixer control | |
2393 | * @ucontrol: control element information | |
2394 | * | |
2395 | * Callback to set the value of a double semi enumerated mixer. | |
2396 | * | |
2397 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2398 | * used for handling bitfield coded enumeration for example. | |
2399 | * | |
2400 | * Returns 0 for success. | |
2401 | */ | |
2402 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2403 | struct snd_ctl_elem_value *ucontrol) | |
2404 | { | |
2405 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2406 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2407 | unsigned int val; |
2408 | unsigned int mask; | |
2e72f8e3 PU |
2409 | |
2410 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2411 | return -EINVAL; | |
2412 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2413 | mask = e->mask << e->shift_l; | |
2414 | if (e->shift_l != e->shift_r) { | |
2415 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2416 | return -EINVAL; | |
2417 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2418 | mask |= e->mask << e->shift_r; | |
2419 | } | |
2420 | ||
6c508c62 | 2421 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2422 | } |
2423 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2424 | ||
db2a4165 FM |
2425 | /** |
2426 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2427 | * @kcontrol: mixer control | |
2428 | * @uinfo: control element information | |
2429 | * | |
2430 | * Callback to provide information about an external enumerated | |
2431 | * single mixer. | |
2432 | * | |
2433 | * Returns 0 for success. | |
2434 | */ | |
2435 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2436 | struct snd_ctl_elem_info *uinfo) | |
2437 | { | |
2438 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2439 | ||
2440 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2441 | uinfo->count = 1; | |
f8ba0b7b | 2442 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2443 | |
f8ba0b7b JS |
2444 | if (uinfo->value.enumerated.item > e->max - 1) |
2445 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2446 | strcpy(uinfo->value.enumerated.name, |
2447 | e->texts[uinfo->value.enumerated.item]); | |
2448 | return 0; | |
2449 | } | |
2450 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2451 | ||
2452 | /** | |
2453 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2454 | * @kcontrol: mixer control | |
2455 | * @uinfo: control element information | |
2456 | * | |
2457 | * Callback to provide information about a single external mixer control. | |
2458 | * | |
2459 | * Returns 0 for success. | |
2460 | */ | |
2461 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2462 | struct snd_ctl_elem_info *uinfo) | |
2463 | { | |
a7a4ac86 PZ |
2464 | int max = kcontrol->private_value; |
2465 | ||
fd5dfad9 | 2466 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2467 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2468 | else | |
2469 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2470 | |
db2a4165 FM |
2471 | uinfo->count = 1; |
2472 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2473 | uinfo->value.integer.max = max; |
db2a4165 FM |
2474 | return 0; |
2475 | } | |
2476 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2477 | ||
db2a4165 FM |
2478 | /** |
2479 | * snd_soc_info_volsw - single mixer info callback | |
2480 | * @kcontrol: mixer control | |
2481 | * @uinfo: control element information | |
2482 | * | |
2483 | * Callback to provide information about a single mixer control. | |
2484 | * | |
2485 | * Returns 0 for success. | |
2486 | */ | |
2487 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2488 | struct snd_ctl_elem_info *uinfo) | |
2489 | { | |
4eaa9819 JS |
2490 | struct soc_mixer_control *mc = |
2491 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2492 | int platform_max; |
762b8df7 | 2493 | unsigned int shift = mc->shift; |
815ecf8d | 2494 | unsigned int rshift = mc->rshift; |
db2a4165 | 2495 | |
d11bb4a9 PU |
2496 | if (!mc->platform_max) |
2497 | mc->platform_max = mc->max; | |
2498 | platform_max = mc->platform_max; | |
2499 | ||
2500 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2501 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2502 | else | |
2503 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2504 | ||
db2a4165 FM |
2505 | uinfo->count = shift == rshift ? 1 : 2; |
2506 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2507 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2508 | return 0; |
2509 | } | |
2510 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2511 | ||
2512 | /** | |
2513 | * snd_soc_get_volsw - single mixer get callback | |
2514 | * @kcontrol: mixer control | |
ac11a2b3 | 2515 | * @ucontrol: control element information |
db2a4165 FM |
2516 | * |
2517 | * Callback to get the value of a single mixer control. | |
2518 | * | |
2519 | * Returns 0 for success. | |
2520 | */ | |
2521 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2522 | struct snd_ctl_elem_value *ucontrol) | |
2523 | { | |
4eaa9819 JS |
2524 | struct soc_mixer_control *mc = |
2525 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2526 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2527 | unsigned int reg = mc->reg; |
2528 | unsigned int shift = mc->shift; | |
2529 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2530 | int max = mc->max; |
815ecf8d JS |
2531 | unsigned int mask = (1 << fls(max)) - 1; |
2532 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2533 | |
2534 | ucontrol->value.integer.value[0] = | |
2535 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2536 | if (shift != rshift) | |
2537 | ucontrol->value.integer.value[1] = | |
2538 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2539 | if (invert) { | |
2540 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2541 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2542 | if (shift != rshift) |
2543 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2544 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2545 | } |
2546 | ||
2547 | return 0; | |
2548 | } | |
2549 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2550 | ||
2551 | /** | |
2552 | * snd_soc_put_volsw - single mixer put callback | |
2553 | * @kcontrol: mixer control | |
ac11a2b3 | 2554 | * @ucontrol: control element information |
db2a4165 FM |
2555 | * |
2556 | * Callback to set the value of a single mixer control. | |
2557 | * | |
2558 | * Returns 0 for success. | |
2559 | */ | |
2560 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2561 | struct snd_ctl_elem_value *ucontrol) | |
2562 | { | |
4eaa9819 JS |
2563 | struct soc_mixer_control *mc = |
2564 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2565 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2566 | unsigned int reg = mc->reg; |
2567 | unsigned int shift = mc->shift; | |
2568 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2569 | int max = mc->max; |
815ecf8d JS |
2570 | unsigned int mask = (1 << fls(max)) - 1; |
2571 | unsigned int invert = mc->invert; | |
46f5822f | 2572 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2573 | |
2574 | val = (ucontrol->value.integer.value[0] & mask); | |
2575 | if (invert) | |
a7a4ac86 | 2576 | val = max - val; |
db2a4165 FM |
2577 | val_mask = mask << shift; |
2578 | val = val << shift; | |
2579 | if (shift != rshift) { | |
2580 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2581 | if (invert) | |
a7a4ac86 | 2582 | val2 = max - val2; |
db2a4165 FM |
2583 | val_mask |= mask << rshift; |
2584 | val |= val2 << rshift; | |
2585 | } | |
6c508c62 | 2586 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2587 | } |
2588 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2589 | ||
2590 | /** | |
2591 | * snd_soc_info_volsw_2r - double mixer info callback | |
2592 | * @kcontrol: mixer control | |
2593 | * @uinfo: control element information | |
2594 | * | |
2595 | * Callback to provide information about a double mixer control that | |
2596 | * spans 2 codec registers. | |
2597 | * | |
2598 | * Returns 0 for success. | |
2599 | */ | |
2600 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2601 | struct snd_ctl_elem_info *uinfo) | |
2602 | { | |
4eaa9819 JS |
2603 | struct soc_mixer_control *mc = |
2604 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2605 | int platform_max; |
a7a4ac86 | 2606 | |
d11bb4a9 PU |
2607 | if (!mc->platform_max) |
2608 | mc->platform_max = mc->max; | |
2609 | platform_max = mc->platform_max; | |
2610 | ||
2611 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2612 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2613 | else | |
2614 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2615 | |
db2a4165 FM |
2616 | uinfo->count = 2; |
2617 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2618 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2619 | return 0; |
2620 | } | |
2621 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2622 | ||
2623 | /** | |
2624 | * snd_soc_get_volsw_2r - double mixer get callback | |
2625 | * @kcontrol: mixer control | |
ac11a2b3 | 2626 | * @ucontrol: control element information |
db2a4165 FM |
2627 | * |
2628 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2629 | * | |
2630 | * Returns 0 for success. | |
2631 | */ | |
2632 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2633 | struct snd_ctl_elem_value *ucontrol) | |
2634 | { | |
4eaa9819 JS |
2635 | struct soc_mixer_control *mc = |
2636 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2637 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2638 | unsigned int reg = mc->reg; |
2639 | unsigned int reg2 = mc->rreg; | |
2640 | unsigned int shift = mc->shift; | |
4eaa9819 | 2641 | int max = mc->max; |
46f5822f | 2642 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2643 | unsigned int invert = mc->invert; |
db2a4165 FM |
2644 | |
2645 | ucontrol->value.integer.value[0] = | |
2646 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2647 | ucontrol->value.integer.value[1] = | |
2648 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2649 | if (invert) { | |
2650 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2651 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2652 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2653 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2654 | } |
2655 | ||
2656 | return 0; | |
2657 | } | |
2658 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2659 | ||
2660 | /** | |
2661 | * snd_soc_put_volsw_2r - double mixer set callback | |
2662 | * @kcontrol: mixer control | |
ac11a2b3 | 2663 | * @ucontrol: control element information |
db2a4165 FM |
2664 | * |
2665 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2666 | * | |
2667 | * Returns 0 for success. | |
2668 | */ | |
2669 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2670 | struct snd_ctl_elem_value *ucontrol) | |
2671 | { | |
4eaa9819 JS |
2672 | struct soc_mixer_control *mc = |
2673 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2674 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2675 | unsigned int reg = mc->reg; |
2676 | unsigned int reg2 = mc->rreg; | |
2677 | unsigned int shift = mc->shift; | |
4eaa9819 | 2678 | int max = mc->max; |
815ecf8d JS |
2679 | unsigned int mask = (1 << fls(max)) - 1; |
2680 | unsigned int invert = mc->invert; | |
db2a4165 | 2681 | int err; |
46f5822f | 2682 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2683 | |
2684 | val_mask = mask << shift; | |
2685 | val = (ucontrol->value.integer.value[0] & mask); | |
2686 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2687 | ||
2688 | if (invert) { | |
a7a4ac86 PZ |
2689 | val = max - val; |
2690 | val2 = max - val2; | |
db2a4165 FM |
2691 | } |
2692 | ||
2693 | val = val << shift; | |
2694 | val2 = val2 << shift; | |
2695 | ||
6c508c62 | 2696 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2697 | if (err < 0) |
db2a4165 FM |
2698 | return err; |
2699 | ||
6c508c62 | 2700 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2701 | return err; |
2702 | } | |
2703 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2704 | ||
e13ac2e9 MB |
2705 | /** |
2706 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2707 | * @kcontrol: mixer control | |
2708 | * @uinfo: control element information | |
2709 | * | |
2710 | * Callback to provide information about a signed mixer control. | |
2711 | * | |
2712 | * Returns 0 for success. | |
2713 | */ | |
2714 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2715 | struct snd_ctl_elem_info *uinfo) | |
2716 | { | |
4eaa9819 JS |
2717 | struct soc_mixer_control *mc = |
2718 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2719 | int platform_max; |
4eaa9819 | 2720 | int min = mc->min; |
e13ac2e9 | 2721 | |
d11bb4a9 PU |
2722 | if (!mc->platform_max) |
2723 | mc->platform_max = mc->max; | |
2724 | platform_max = mc->platform_max; | |
2725 | ||
e13ac2e9 MB |
2726 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2727 | uinfo->count = 2; | |
2728 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2729 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2730 | return 0; |
2731 | } | |
2732 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2733 | ||
2734 | /** | |
2735 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2736 | * @kcontrol: mixer control | |
ac11a2b3 | 2737 | * @ucontrol: control element information |
e13ac2e9 MB |
2738 | * |
2739 | * Callback to get the value of a signed mixer control. | |
2740 | * | |
2741 | * Returns 0 for success. | |
2742 | */ | |
2743 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2744 | struct snd_ctl_elem_value *ucontrol) | |
2745 | { | |
4eaa9819 JS |
2746 | struct soc_mixer_control *mc = |
2747 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2748 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2749 | unsigned int reg = mc->reg; |
4eaa9819 | 2750 | int min = mc->min; |
e13ac2e9 MB |
2751 | int val = snd_soc_read(codec, reg); |
2752 | ||
2753 | ucontrol->value.integer.value[0] = | |
2754 | ((signed char)(val & 0xff))-min; | |
2755 | ucontrol->value.integer.value[1] = | |
2756 | ((signed char)((val >> 8) & 0xff))-min; | |
2757 | return 0; | |
2758 | } | |
2759 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2760 | ||
2761 | /** | |
2762 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2763 | * @kcontrol: mixer control | |
ac11a2b3 | 2764 | * @ucontrol: control element information |
e13ac2e9 MB |
2765 | * |
2766 | * Callback to set the value of a signed mixer control. | |
2767 | * | |
2768 | * Returns 0 for success. | |
2769 | */ | |
2770 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2771 | struct snd_ctl_elem_value *ucontrol) | |
2772 | { | |
4eaa9819 JS |
2773 | struct soc_mixer_control *mc = |
2774 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2775 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2776 | unsigned int reg = mc->reg; |
4eaa9819 | 2777 | int min = mc->min; |
46f5822f | 2778 | unsigned int val; |
e13ac2e9 MB |
2779 | |
2780 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2781 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2782 | ||
6c508c62 | 2783 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2784 | } |
2785 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2786 | ||
637d3847 PU |
2787 | /** |
2788 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2789 | * | |
2790 | * @codec: where to look for the control | |
2791 | * @name: Name of the control | |
2792 | * @max: new maximum limit | |
2793 | * | |
2794 | * Return 0 for success, else error. | |
2795 | */ | |
2796 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2797 | const char *name, int max) | |
2798 | { | |
f0fba2ad | 2799 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2800 | struct snd_kcontrol *kctl; |
2801 | struct soc_mixer_control *mc; | |
2802 | int found = 0; | |
2803 | int ret = -EINVAL; | |
2804 | ||
2805 | /* Sanity check for name and max */ | |
2806 | if (unlikely(!name || max <= 0)) | |
2807 | return -EINVAL; | |
2808 | ||
2809 | list_for_each_entry(kctl, &card->controls, list) { | |
2810 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2811 | found = 1; | |
2812 | break; | |
2813 | } | |
2814 | } | |
2815 | if (found) { | |
2816 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2817 | if (max <= mc->max) { | |
d11bb4a9 | 2818 | mc->platform_max = max; |
637d3847 PU |
2819 | ret = 0; |
2820 | } | |
2821 | } | |
2822 | return ret; | |
2823 | } | |
2824 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2825 | ||
b6f4bb38 | 2826 | /** |
2827 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2828 | * mixer info callback | |
2829 | * @kcontrol: mixer control | |
2830 | * @uinfo: control element information | |
2831 | * | |
2832 | * Returns 0 for success. | |
2833 | */ | |
2834 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2835 | struct snd_ctl_elem_info *uinfo) | |
2836 | { | |
2837 | struct soc_mixer_control *mc = | |
2838 | (struct soc_mixer_control *)kcontrol->private_value; | |
2839 | int max = mc->max; | |
2840 | int min = mc->min; | |
2841 | ||
2842 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2843 | uinfo->count = 2; | |
2844 | uinfo->value.integer.min = 0; | |
2845 | uinfo->value.integer.max = max-min; | |
2846 | ||
2847 | return 0; | |
2848 | } | |
2849 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2850 | ||
2851 | /** | |
2852 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2853 | * mixer get callback | |
2854 | * @kcontrol: mixer control | |
2855 | * @uinfo: control element information | |
2856 | * | |
2857 | * Returns 0 for success. | |
2858 | */ | |
2859 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2860 | struct snd_ctl_elem_value *ucontrol) | |
2861 | { | |
2862 | struct soc_mixer_control *mc = | |
2863 | (struct soc_mixer_control *)kcontrol->private_value; | |
2864 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2865 | unsigned int mask = (1<<mc->shift)-1; | |
2866 | int min = mc->min; | |
2867 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2868 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2869 | ||
20630c7f SL |
2870 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2871 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2872 | return 0; |
2873 | } | |
2874 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2875 | ||
2876 | /** | |
2877 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2878 | * mixer put callback | |
2879 | * @kcontrol: mixer control | |
2880 | * @uinfo: control element information | |
2881 | * | |
2882 | * Returns 0 for success. | |
2883 | */ | |
2884 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2885 | struct snd_ctl_elem_value *ucontrol) | |
2886 | { | |
2887 | struct soc_mixer_control *mc = | |
2888 | (struct soc_mixer_control *)kcontrol->private_value; | |
2889 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2890 | unsigned int mask = (1<<mc->shift)-1; | |
2891 | int min = mc->min; | |
2892 | int ret; | |
2893 | unsigned int val, valr, oval, ovalr; | |
2894 | ||
2895 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2896 | val &= mask; | |
2897 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2898 | valr &= mask; | |
2899 | ||
2900 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2901 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2902 | ||
2903 | ret = 0; | |
2904 | if (oval != val) { | |
2905 | ret = snd_soc_write(codec, mc->reg, val); | |
2906 | if (ret < 0) | |
f1df5aec | 2907 | return ret; |
b6f4bb38 | 2908 | } |
2909 | if (ovalr != valr) { | |
2910 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2911 | if (ret < 0) | |
f1df5aec | 2912 | return ret; |
b6f4bb38 | 2913 | } |
2914 | ||
2915 | return 0; | |
2916 | } | |
2917 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2918 | ||
8c6529db LG |
2919 | /** |
2920 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2921 | * @dai: DAI | |
2922 | * @clk_id: DAI specific clock ID | |
2923 | * @freq: new clock frequency in Hz | |
2924 | * @dir: new clock direction - input/output. | |
2925 | * | |
2926 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2927 | */ | |
2928 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2929 | unsigned int freq, int dir) | |
2930 | { | |
f0fba2ad LG |
2931 | if (dai->driver && dai->driver->ops->set_sysclk) |
2932 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2933 | else |
2934 | return -EINVAL; | |
2935 | } | |
2936 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2937 | ||
2938 | /** | |
2939 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2940 | * @dai: DAI | |
ac11a2b3 | 2941 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2942 | * @div: new clock divisor. |
2943 | * | |
2944 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2945 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2946 | * and frame clocks as low as possible to save system power. | |
2947 | */ | |
2948 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2949 | int div_id, int div) | |
2950 | { | |
f0fba2ad LG |
2951 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2952 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2953 | else |
2954 | return -EINVAL; | |
2955 | } | |
2956 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2957 | ||
2958 | /** | |
2959 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2960 | * @dai: DAI | |
2961 | * @pll_id: DAI specific PLL ID | |
85488037 | 2962 | * @source: DAI specific source for the PLL |
8c6529db LG |
2963 | * @freq_in: PLL input clock frequency in Hz |
2964 | * @freq_out: requested PLL output clock frequency in Hz | |
2965 | * | |
2966 | * Configures and enables PLL to generate output clock based on input clock. | |
2967 | */ | |
85488037 MB |
2968 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2969 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2970 | { |
f0fba2ad LG |
2971 | if (dai->driver && dai->driver->ops->set_pll) |
2972 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2973 | freq_in, freq_out); |
8c6529db LG |
2974 | else |
2975 | return -EINVAL; | |
2976 | } | |
2977 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2978 | ||
2979 | /** | |
2980 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2981 | * @dai: DAI | |
8c6529db LG |
2982 | * @fmt: SND_SOC_DAIFMT_ format value. |
2983 | * | |
2984 | * Configures the DAI hardware format and clocking. | |
2985 | */ | |
2986 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2987 | { | |
f0fba2ad LG |
2988 | if (dai->driver && dai->driver->ops->set_fmt) |
2989 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2990 | else |
2991 | return -EINVAL; | |
2992 | } | |
2993 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2994 | ||
2995 | /** | |
2996 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2997 | * @dai: DAI | |
a5479e38 DR |
2998 | * @tx_mask: bitmask representing active TX slots. |
2999 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3000 | * @slots: Number of slots in use. |
a5479e38 | 3001 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3002 | * |
3003 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3004 | * specific. | |
3005 | */ | |
3006 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3007 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3008 | { |
f0fba2ad LG |
3009 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3010 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3011 | slots, slot_width); |
8c6529db LG |
3012 | else |
3013 | return -EINVAL; | |
3014 | } | |
3015 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3016 | ||
472df3cb BS |
3017 | /** |
3018 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3019 | * @dai: DAI | |
3020 | * @tx_num: how many TX channels | |
3021 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3022 | * 0~num-1 uses | |
3023 | * @rx_num: how many RX channels | |
3024 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3025 | * 0~num-1 uses | |
3026 | * | |
3027 | * configure the relationship between channel number and TDM slot number. | |
3028 | */ | |
3029 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3030 | unsigned int tx_num, unsigned int *tx_slot, | |
3031 | unsigned int rx_num, unsigned int *rx_slot) | |
3032 | { | |
f0fba2ad LG |
3033 | if (dai->driver && dai->driver->ops->set_channel_map) |
3034 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3035 | rx_num, rx_slot); |
3036 | else | |
3037 | return -EINVAL; | |
3038 | } | |
3039 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3040 | ||
8c6529db LG |
3041 | /** |
3042 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3043 | * @dai: DAI | |
3044 | * @tristate: tristate enable | |
3045 | * | |
3046 | * Tristates the DAI so that others can use it. | |
3047 | */ | |
3048 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3049 | { | |
f0fba2ad LG |
3050 | if (dai->driver && dai->driver->ops->set_tristate) |
3051 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3052 | else |
3053 | return -EINVAL; | |
3054 | } | |
3055 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3056 | ||
3057 | /** | |
3058 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3059 | * @dai: DAI | |
3060 | * @mute: mute enable | |
3061 | * | |
3062 | * Mutes the DAI DAC. | |
3063 | */ | |
3064 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3065 | { | |
f0fba2ad LG |
3066 | if (dai->driver && dai->driver->ops->digital_mute) |
3067 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3068 | else |
3069 | return -EINVAL; | |
3070 | } | |
3071 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3072 | ||
c5af3a2e MB |
3073 | /** |
3074 | * snd_soc_register_card - Register a card with the ASoC core | |
3075 | * | |
ac11a2b3 | 3076 | * @card: Card to register |
c5af3a2e MB |
3077 | * |
3078 | * Note that currently this is an internal only function: it will be | |
3079 | * exposed to machine drivers after further backporting of ASoC v2 | |
3080 | * registration APIs. | |
3081 | */ | |
3082 | static int snd_soc_register_card(struct snd_soc_card *card) | |
3083 | { | |
f0fba2ad LG |
3084 | int i; |
3085 | ||
c5af3a2e MB |
3086 | if (!card->name || !card->dev) |
3087 | return -EINVAL; | |
3088 | ||
2eea392d JN |
3089 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3090 | (card->num_links + card->num_aux_devs), | |
3091 | GFP_KERNEL); | |
f0fba2ad LG |
3092 | if (card->rtd == NULL) |
3093 | return -ENOMEM; | |
2eea392d | 3094 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3095 | |
3096 | for (i = 0; i < card->num_links; i++) | |
3097 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3098 | ||
c5af3a2e MB |
3099 | INIT_LIST_HEAD(&card->list); |
3100 | card->instantiated = 0; | |
f0fba2ad | 3101 | mutex_init(&card->mutex); |
c5af3a2e MB |
3102 | |
3103 | mutex_lock(&client_mutex); | |
3104 | list_add(&card->list, &card_list); | |
435c5e25 | 3105 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3106 | mutex_unlock(&client_mutex); |
3107 | ||
3108 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3109 | ||
3110 | return 0; | |
3111 | } | |
3112 | ||
3113 | /** | |
3114 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3115 | * | |
ac11a2b3 | 3116 | * @card: Card to unregister |
c5af3a2e MB |
3117 | * |
3118 | * Note that currently this is an internal only function: it will be | |
3119 | * exposed to machine drivers after further backporting of ASoC v2 | |
3120 | * registration APIs. | |
3121 | */ | |
3122 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
3123 | { | |
3124 | mutex_lock(&client_mutex); | |
3125 | list_del(&card->list); | |
3126 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3127 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3128 | ||
3129 | return 0; | |
3130 | } | |
3131 | ||
f0fba2ad LG |
3132 | /* |
3133 | * Simplify DAI link configuration by removing ".-1" from device names | |
3134 | * and sanitizing names. | |
3135 | */ | |
3136 | static inline char *fmt_single_name(struct device *dev, int *id) | |
3137 | { | |
3138 | char *found, name[NAME_SIZE]; | |
3139 | int id1, id2; | |
3140 | ||
3141 | if (dev_name(dev) == NULL) | |
3142 | return NULL; | |
3143 | ||
3144 | strncpy(name, dev_name(dev), NAME_SIZE); | |
3145 | ||
3146 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3147 | found = strstr(name, dev->driver->name); | |
3148 | if (found) { | |
3149 | /* get ID */ | |
3150 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3151 | ||
3152 | /* discard ID from name if ID == -1 */ | |
3153 | if (*id == -1) | |
3154 | found[strlen(dev->driver->name)] = '\0'; | |
3155 | } | |
3156 | ||
3157 | } else { | |
3158 | /* I2C component devices are named "bus-addr" */ | |
3159 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3160 | char tmp[NAME_SIZE]; | |
3161 | ||
3162 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3163 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3164 | |
3165 | /* sanitize component name for DAI link creation */ | |
3166 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
3167 | strncpy(name, tmp, NAME_SIZE); | |
3168 | } else | |
3169 | *id = 0; | |
3170 | } | |
3171 | ||
3172 | return kstrdup(name, GFP_KERNEL); | |
3173 | } | |
3174 | ||
3175 | /* | |
3176 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3177 | * any ".-1" and using the DAI name (instead of device name). | |
3178 | */ | |
3179 | static inline char *fmt_multiple_name(struct device *dev, | |
3180 | struct snd_soc_dai_driver *dai_drv) | |
3181 | { | |
3182 | if (dai_drv->name == NULL) { | |
3183 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3184 | dev_name(dev)); | |
3185 | return NULL; | |
3186 | } | |
3187 | ||
3188 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3189 | } | |
3190 | ||
9115171a MB |
3191 | /** |
3192 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3193 | * | |
ac11a2b3 | 3194 | * @dai: DAI to register |
9115171a | 3195 | */ |
f0fba2ad LG |
3196 | int snd_soc_register_dai(struct device *dev, |
3197 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3198 | { |
f0fba2ad LG |
3199 | struct snd_soc_dai *dai; |
3200 | ||
3201 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3202 | |
f0fba2ad LG |
3203 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3204 | if (dai == NULL) | |
3205 | return -ENOMEM; | |
9115171a | 3206 | |
f0fba2ad LG |
3207 | /* create DAI component name */ |
3208 | dai->name = fmt_single_name(dev, &dai->id); | |
3209 | if (dai->name == NULL) { | |
3210 | kfree(dai); | |
3211 | return -ENOMEM; | |
3212 | } | |
6335d055 | 3213 | |
f0fba2ad LG |
3214 | dai->dev = dev; |
3215 | dai->driver = dai_drv; | |
3216 | if (!dai->driver->ops) | |
3217 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3218 | |
3219 | mutex_lock(&client_mutex); | |
3220 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3221 | snd_soc_instantiate_cards(); |
9115171a MB |
3222 | mutex_unlock(&client_mutex); |
3223 | ||
3224 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3225 | ||
3226 | return 0; | |
3227 | } | |
3228 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3229 | ||
3230 | /** | |
3231 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3232 | * | |
ac11a2b3 | 3233 | * @dai: DAI to unregister |
9115171a | 3234 | */ |
f0fba2ad | 3235 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3236 | { |
f0fba2ad LG |
3237 | struct snd_soc_dai *dai; |
3238 | ||
3239 | list_for_each_entry(dai, &dai_list, list) { | |
3240 | if (dev == dai->dev) | |
3241 | goto found; | |
3242 | } | |
3243 | return; | |
3244 | ||
3245 | found: | |
9115171a MB |
3246 | mutex_lock(&client_mutex); |
3247 | list_del(&dai->list); | |
3248 | mutex_unlock(&client_mutex); | |
3249 | ||
3250 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3251 | kfree(dai->name); |
3252 | kfree(dai); | |
9115171a MB |
3253 | } |
3254 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3255 | ||
3256 | /** | |
3257 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3258 | * | |
ac11a2b3 MB |
3259 | * @dai: Array of DAIs to register |
3260 | * @count: Number of DAIs | |
9115171a | 3261 | */ |
f0fba2ad LG |
3262 | int snd_soc_register_dais(struct device *dev, |
3263 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3264 | { |
f0fba2ad LG |
3265 | struct snd_soc_dai *dai; |
3266 | int i, ret = 0; | |
3267 | ||
720ffa4c | 3268 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3269 | |
3270 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3271 | |
3272 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3273 | if (dai == NULL) { |
3274 | ret = -ENOMEM; | |
3275 | goto err; | |
3276 | } | |
f0fba2ad LG |
3277 | |
3278 | /* create DAI component name */ | |
3279 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3280 | if (dai->name == NULL) { | |
3281 | kfree(dai); | |
3282 | ret = -EINVAL; | |
9115171a | 3283 | goto err; |
f0fba2ad LG |
3284 | } |
3285 | ||
3286 | dai->dev = dev; | |
f0fba2ad | 3287 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3288 | if (dai->driver->id) |
3289 | dai->id = dai->driver->id; | |
3290 | else | |
3291 | dai->id = i; | |
f0fba2ad LG |
3292 | if (!dai->driver->ops) |
3293 | dai->driver->ops = &null_dai_ops; | |
3294 | ||
3295 | mutex_lock(&client_mutex); | |
3296 | list_add(&dai->list, &dai_list); | |
3297 | mutex_unlock(&client_mutex); | |
3298 | ||
3299 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3300 | } |
3301 | ||
f0fba2ad | 3302 | snd_soc_instantiate_cards(); |
9115171a MB |
3303 | return 0; |
3304 | ||
3305 | err: | |
3306 | for (i--; i >= 0; i--) | |
f0fba2ad | 3307 | snd_soc_unregister_dai(dev); |
9115171a MB |
3308 | |
3309 | return ret; | |
3310 | } | |
3311 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3312 | ||
3313 | /** | |
3314 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3315 | * | |
ac11a2b3 MB |
3316 | * @dai: Array of DAIs to unregister |
3317 | * @count: Number of DAIs | |
9115171a | 3318 | */ |
f0fba2ad | 3319 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3320 | { |
3321 | int i; | |
3322 | ||
3323 | for (i = 0; i < count; i++) | |
f0fba2ad | 3324 | snd_soc_unregister_dai(dev); |
9115171a MB |
3325 | } |
3326 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3327 | ||
12a48a8c MB |
3328 | /** |
3329 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3330 | * | |
ac11a2b3 | 3331 | * @platform: platform to register |
12a48a8c | 3332 | */ |
f0fba2ad LG |
3333 | int snd_soc_register_platform(struct device *dev, |
3334 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3335 | { |
f0fba2ad LG |
3336 | struct snd_soc_platform *platform; |
3337 | ||
3338 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3339 | ||
3340 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3341 | if (platform == NULL) | |
3342 | return -ENOMEM; | |
3343 | ||
3344 | /* create platform component name */ | |
3345 | platform->name = fmt_single_name(dev, &platform->id); | |
3346 | if (platform->name == NULL) { | |
3347 | kfree(platform); | |
3348 | return -ENOMEM; | |
3349 | } | |
12a48a8c | 3350 | |
f0fba2ad LG |
3351 | platform->dev = dev; |
3352 | platform->driver = platform_drv; | |
12a48a8c MB |
3353 | |
3354 | mutex_lock(&client_mutex); | |
3355 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3356 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3357 | mutex_unlock(&client_mutex); |
3358 | ||
3359 | pr_debug("Registered platform '%s'\n", platform->name); | |
3360 | ||
3361 | return 0; | |
3362 | } | |
3363 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3364 | ||
3365 | /** | |
3366 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3367 | * | |
ac11a2b3 | 3368 | * @platform: platform to unregister |
12a48a8c | 3369 | */ |
f0fba2ad | 3370 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3371 | { |
f0fba2ad LG |
3372 | struct snd_soc_platform *platform; |
3373 | ||
3374 | list_for_each_entry(platform, &platform_list, list) { | |
3375 | if (dev == platform->dev) | |
3376 | goto found; | |
3377 | } | |
3378 | return; | |
3379 | ||
3380 | found: | |
12a48a8c MB |
3381 | mutex_lock(&client_mutex); |
3382 | list_del(&platform->list); | |
3383 | mutex_unlock(&client_mutex); | |
3384 | ||
3385 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3386 | kfree(platform->name); |
3387 | kfree(platform); | |
12a48a8c MB |
3388 | } |
3389 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3390 | ||
151ab22c MB |
3391 | static u64 codec_format_map[] = { |
3392 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3393 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3394 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3395 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3396 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3397 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3398 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3399 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3400 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3401 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3402 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3403 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3404 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3405 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3406 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3407 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3408 | }; | |
3409 | ||
3410 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3411 | * the endianness of the data but we're using the CPU format | |
3412 | * definitions which do need to include endianness so we ensure that | |
3413 | * codec DAIs always have both big and little endian variants set. | |
3414 | */ | |
3415 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3416 | { | |
3417 | int i; | |
3418 | ||
3419 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3420 | if (stream->formats & codec_format_map[i]) | |
3421 | stream->formats |= codec_format_map[i]; | |
3422 | } | |
3423 | ||
0d0cf00a MB |
3424 | /** |
3425 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3426 | * | |
ac11a2b3 | 3427 | * @codec: codec to register |
0d0cf00a | 3428 | */ |
f0fba2ad LG |
3429 | int snd_soc_register_codec(struct device *dev, |
3430 | struct snd_soc_codec_driver *codec_drv, | |
3431 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
0d0cf00a | 3432 | { |
f0fba2ad LG |
3433 | struct snd_soc_codec *codec; |
3434 | int ret, i; | |
151ab22c | 3435 | |
f0fba2ad LG |
3436 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3437 | ||
3438 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3439 | if (codec == NULL) | |
3440 | return -ENOMEM; | |
0d0cf00a | 3441 | |
f0fba2ad LG |
3442 | /* create CODEC component name */ |
3443 | codec->name = fmt_single_name(dev, &codec->id); | |
3444 | if (codec->name == NULL) { | |
3445 | kfree(codec); | |
3446 | return -ENOMEM; | |
3447 | } | |
3448 | ||
ce6120cc LG |
3449 | INIT_LIST_HEAD(&codec->dapm.widgets); |
3450 | INIT_LIST_HEAD(&codec->dapm.paths); | |
3451 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; | |
3452 | codec->dapm.dev = dev; | |
3453 | codec->dapm.codec = codec; | |
7a30a3db DP |
3454 | codec->dev = dev; |
3455 | codec->driver = codec_drv; | |
3456 | codec->num_dai = num_dai; | |
3457 | mutex_init(&codec->mutex); | |
ce6120cc | 3458 | |
f0fba2ad LG |
3459 | /* allocate CODEC register cache */ |
3460 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
7a30a3db DP |
3461 | ret = snd_soc_cache_init(codec); |
3462 | if (ret < 0) { | |
3463 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
3464 | ret); | |
3465 | goto error_cache; | |
f0fba2ad | 3466 | } |
151ab22c MB |
3467 | } |
3468 | ||
f0fba2ad LG |
3469 | for (i = 0; i < num_dai; i++) { |
3470 | fixup_codec_formats(&dai_drv[i].playback); | |
3471 | fixup_codec_formats(&dai_drv[i].capture); | |
3472 | } | |
3473 | ||
26b01ccd MB |
3474 | /* register any DAIs */ |
3475 | if (num_dai) { | |
3476 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3477 | if (ret < 0) | |
7a30a3db | 3478 | goto error_dais; |
26b01ccd | 3479 | } |
f0fba2ad | 3480 | |
0d0cf00a MB |
3481 | mutex_lock(&client_mutex); |
3482 | list_add(&codec->list, &codec_list); | |
3483 | snd_soc_instantiate_cards(); | |
3484 | mutex_unlock(&client_mutex); | |
3485 | ||
3486 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3487 | return 0; |
f0fba2ad | 3488 | |
7a30a3db DP |
3489 | error_dais: |
3490 | snd_soc_cache_exit(codec); | |
3491 | error_cache: | |
f0fba2ad LG |
3492 | kfree(codec->name); |
3493 | kfree(codec); | |
3494 | return ret; | |
0d0cf00a MB |
3495 | } |
3496 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3497 | ||
3498 | /** | |
3499 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3500 | * | |
ac11a2b3 | 3501 | * @codec: codec to unregister |
0d0cf00a | 3502 | */ |
f0fba2ad | 3503 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3504 | { |
f0fba2ad LG |
3505 | struct snd_soc_codec *codec; |
3506 | int i; | |
3507 | ||
3508 | list_for_each_entry(codec, &codec_list, list) { | |
3509 | if (dev == codec->dev) | |
3510 | goto found; | |
3511 | } | |
3512 | return; | |
3513 | ||
3514 | found: | |
26b01ccd MB |
3515 | if (codec->num_dai) |
3516 | for (i = 0; i < codec->num_dai; i++) | |
3517 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3518 | |
0d0cf00a MB |
3519 | mutex_lock(&client_mutex); |
3520 | list_del(&codec->list); | |
3521 | mutex_unlock(&client_mutex); | |
3522 | ||
3523 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3524 | |
7a30a3db | 3525 | snd_soc_cache_exit(codec); |
1aafcd4d | 3526 | kfree(codec->name); |
f0fba2ad | 3527 | kfree(codec); |
0d0cf00a MB |
3528 | } |
3529 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3530 | ||
c9b3a40f | 3531 | static int __init snd_soc_init(void) |
db2a4165 | 3532 | { |
384c89e2 MB |
3533 | #ifdef CONFIG_DEBUG_FS |
3534 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3535 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3536 | printk(KERN_WARNING | |
3537 | "ASoC: Failed to create debugfs directory\n"); | |
3538 | debugfs_root = NULL; | |
3539 | } | |
c3c5a19a MB |
3540 | |
3541 | if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL, | |
3542 | &codec_list_fops)) | |
3543 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3544 | ||
f3208780 MB |
3545 | if (!debugfs_create_file("dais", 0444, debugfs_root, NULL, |
3546 | &dai_list_fops)) | |
3547 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 MB |
3548 | |
3549 | if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL, | |
3550 | &platform_list_fops)) | |
3551 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3552 | #endif |
3553 | ||
db2a4165 FM |
3554 | return platform_driver_register(&soc_driver); |
3555 | } | |
4abe8e16 | 3556 | module_init(snd_soc_init); |
db2a4165 | 3557 | |
7d8c16a6 | 3558 | static void __exit snd_soc_exit(void) |
db2a4165 | 3559 | { |
384c89e2 MB |
3560 | #ifdef CONFIG_DEBUG_FS |
3561 | debugfs_remove_recursive(debugfs_root); | |
3562 | #endif | |
3ff3f64b | 3563 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3564 | } |
db2a4165 FM |
3565 | module_exit(snd_soc_exit); |
3566 | ||
3567 | /* Module information */ | |
d331124d | 3568 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3569 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3570 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3571 | MODULE_ALIAS("platform:soc-audio"); |