Commit | Line | Data |
---|---|---|
db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
474828a4 | 34 | #include <sound/ac97_codec.h> |
db2a4165 | 35 | #include <sound/core.h> |
3028eb8c | 36 | #include <sound/jack.h> |
db2a4165 FM |
37 | #include <sound/pcm.h> |
38 | #include <sound/pcm_params.h> | |
39 | #include <sound/soc.h> | |
db2a4165 FM |
40 | #include <sound/initval.h> |
41 | ||
a8b1d34f MB |
42 | #define CREATE_TRACE_POINTS |
43 | #include <trace/events/asoc.h> | |
44 | ||
f0fba2ad LG |
45 | #define NAME_SIZE 32 |
46 | ||
db2a4165 | 47 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
48 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
49 | ||
384c89e2 | 50 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
51 | struct dentry *snd_soc_debugfs_root; |
52 | EXPORT_SYMBOL_GPL(snd_soc_debugfs_root); | |
384c89e2 MB |
53 | #endif |
54 | ||
c5af3a2e MB |
55 | static DEFINE_MUTEX(client_mutex); |
56 | static LIST_HEAD(card_list); | |
9115171a | 57 | static LIST_HEAD(dai_list); |
12a48a8c | 58 | static LIST_HEAD(platform_list); |
0d0cf00a | 59 | static LIST_HEAD(codec_list); |
c5af3a2e | 60 | |
f0fba2ad | 61 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 62 | |
db2a4165 FM |
63 | /* |
64 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
65 | * It can be used to eliminate pops between different playback streams, e.g. | |
66 | * between two audio tracks. | |
67 | */ | |
68 | static int pmdown_time = 5000; | |
69 | module_param(pmdown_time, int, 0); | |
70 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
71 | ||
2624d5fa MB |
72 | /* codec register dump */ |
73 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
74 | { | |
5164d74d | 75 | int ret, i, step = 1, count = 0; |
2624d5fa | 76 | |
f0fba2ad | 77 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
78 | return 0; |
79 | ||
f0fba2ad LG |
80 | if (codec->driver->reg_cache_step) |
81 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
82 | |
83 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad | 84 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
1500b7b5 | 85 | if (codec->readable_register && !codec->readable_register(codec, i)) |
2624d5fa MB |
86 | continue; |
87 | ||
88 | count += sprintf(buf + count, "%2x: ", i); | |
89 | if (count >= PAGE_SIZE - 1) | |
90 | break; | |
91 | ||
f0fba2ad LG |
92 | if (codec->driver->display_register) { |
93 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 94 | PAGE_SIZE - count, i); |
5164d74d MB |
95 | } else { |
96 | /* If the read fails it's almost certainly due to | |
97 | * the register being volatile and the device being | |
98 | * powered off. | |
99 | */ | |
e4f078d8 | 100 | ret = snd_soc_read(codec, i); |
5164d74d MB |
101 | if (ret >= 0) |
102 | count += snprintf(buf + count, | |
103 | PAGE_SIZE - count, | |
104 | "%4x", ret); | |
105 | else | |
106 | count += snprintf(buf + count, | |
107 | PAGE_SIZE - count, | |
108 | "<no data: %d>", ret); | |
109 | } | |
2624d5fa MB |
110 | |
111 | if (count >= PAGE_SIZE - 1) | |
112 | break; | |
113 | ||
114 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
115 | if (count >= PAGE_SIZE - 1) | |
116 | break; | |
117 | } | |
118 | ||
119 | /* Truncate count; min() would cause a warning */ | |
120 | if (count >= PAGE_SIZE) | |
121 | count = PAGE_SIZE - 1; | |
122 | ||
123 | return count; | |
124 | } | |
125 | static ssize_t codec_reg_show(struct device *dev, | |
126 | struct device_attribute *attr, char *buf) | |
127 | { | |
f0fba2ad LG |
128 | struct snd_soc_pcm_runtime *rtd = |
129 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
130 | ||
131 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
132 | } |
133 | ||
134 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
135 | ||
dbe21408 MB |
136 | static ssize_t pmdown_time_show(struct device *dev, |
137 | struct device_attribute *attr, char *buf) | |
138 | { | |
f0fba2ad LG |
139 | struct snd_soc_pcm_runtime *rtd = |
140 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 141 | |
f0fba2ad | 142 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
143 | } |
144 | ||
145 | static ssize_t pmdown_time_set(struct device *dev, | |
146 | struct device_attribute *attr, | |
147 | const char *buf, size_t count) | |
148 | { | |
f0fba2ad LG |
149 | struct snd_soc_pcm_runtime *rtd = |
150 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 151 | int ret; |
dbe21408 | 152 | |
c593b520 MB |
153 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
154 | if (ret) | |
155 | return ret; | |
dbe21408 MB |
156 | |
157 | return count; | |
158 | } | |
159 | ||
160 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
161 | ||
2624d5fa MB |
162 | #ifdef CONFIG_DEBUG_FS |
163 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
164 | { | |
165 | file->private_data = inode->i_private; | |
166 | return 0; | |
167 | } | |
168 | ||
169 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
170 | size_t count, loff_t *ppos) | |
171 | { | |
172 | ssize_t ret; | |
173 | struct snd_soc_codec *codec = file->private_data; | |
174 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
175 | if (!buf) | |
176 | return -ENOMEM; | |
177 | ret = soc_codec_reg_show(codec, buf); | |
178 | if (ret >= 0) | |
179 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
180 | kfree(buf); | |
181 | return ret; | |
182 | } | |
183 | ||
184 | static ssize_t codec_reg_write_file(struct file *file, | |
185 | const char __user *user_buf, size_t count, loff_t *ppos) | |
186 | { | |
187 | char buf[32]; | |
188 | int buf_size; | |
189 | char *start = buf; | |
190 | unsigned long reg, value; | |
191 | int step = 1; | |
192 | struct snd_soc_codec *codec = file->private_data; | |
193 | ||
194 | buf_size = min(count, (sizeof(buf)-1)); | |
195 | if (copy_from_user(buf, user_buf, buf_size)) | |
196 | return -EFAULT; | |
197 | buf[buf_size] = 0; | |
198 | ||
f0fba2ad LG |
199 | if (codec->driver->reg_cache_step) |
200 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
201 | |
202 | while (*start == ' ') | |
203 | start++; | |
204 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 205 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
206 | return -EINVAL; |
207 | while (*start == ' ') | |
208 | start++; | |
209 | if (strict_strtoul(start, 16, &value)) | |
210 | return -EINVAL; | |
0d51a9cb MB |
211 | |
212 | /* Userspace has been fiddling around behind the kernel's back */ | |
213 | add_taint(TAINT_USER); | |
214 | ||
e4f078d8 | 215 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
216 | return buf_size; |
217 | } | |
218 | ||
219 | static const struct file_operations codec_reg_fops = { | |
220 | .open = codec_reg_open_file, | |
221 | .read = codec_reg_read_file, | |
222 | .write = codec_reg_write_file, | |
6038f373 | 223 | .llseek = default_llseek, |
2624d5fa MB |
224 | }; |
225 | ||
226 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
227 | { | |
d6ce4cf3 JN |
228 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
229 | ||
230 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
231 | debugfs_card_root); | |
2624d5fa MB |
232 | if (!codec->debugfs_codec_root) { |
233 | printk(KERN_WARNING | |
234 | "ASoC: Failed to create codec debugfs directory\n"); | |
235 | return; | |
236 | } | |
237 | ||
238 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
239 | codec->debugfs_codec_root, | |
240 | codec, &codec_reg_fops); | |
241 | if (!codec->debugfs_reg) | |
242 | printk(KERN_WARNING | |
243 | "ASoC: Failed to create codec register debugfs file\n"); | |
244 | ||
ce6120cc | 245 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 246 | codec->debugfs_codec_root); |
ce6120cc | 247 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
248 | printk(KERN_WARNING |
249 | "Failed to create DAPM debugfs directory\n"); | |
250 | ||
ce6120cc | 251 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
252 | } |
253 | ||
254 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
255 | { | |
256 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
257 | } | |
258 | ||
c3c5a19a MB |
259 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
260 | size_t count, loff_t *ppos) | |
261 | { | |
262 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 263 | ssize_t len, ret = 0; |
c3c5a19a MB |
264 | struct snd_soc_codec *codec; |
265 | ||
266 | if (!buf) | |
267 | return -ENOMEM; | |
268 | ||
2b194f9d MB |
269 | list_for_each_entry(codec, &codec_list, list) { |
270 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
271 | codec->name); | |
272 | if (len >= 0) | |
273 | ret += len; | |
274 | if (ret > PAGE_SIZE) { | |
275 | ret = PAGE_SIZE; | |
276 | break; | |
277 | } | |
278 | } | |
c3c5a19a MB |
279 | |
280 | if (ret >= 0) | |
281 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
282 | ||
283 | kfree(buf); | |
284 | ||
285 | return ret; | |
286 | } | |
287 | ||
288 | static const struct file_operations codec_list_fops = { | |
289 | .read = codec_list_read_file, | |
290 | .llseek = default_llseek,/* read accesses f_pos */ | |
291 | }; | |
292 | ||
f3208780 MB |
293 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
294 | size_t count, loff_t *ppos) | |
295 | { | |
296 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 297 | ssize_t len, ret = 0; |
f3208780 MB |
298 | struct snd_soc_dai *dai; |
299 | ||
300 | if (!buf) | |
301 | return -ENOMEM; | |
302 | ||
2b194f9d MB |
303 | list_for_each_entry(dai, &dai_list, list) { |
304 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
305 | if (len >= 0) | |
306 | ret += len; | |
307 | if (ret > PAGE_SIZE) { | |
308 | ret = PAGE_SIZE; | |
309 | break; | |
310 | } | |
311 | } | |
f3208780 | 312 | |
2b194f9d | 313 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
314 | |
315 | kfree(buf); | |
316 | ||
317 | return ret; | |
318 | } | |
319 | ||
320 | static const struct file_operations dai_list_fops = { | |
321 | .read = dai_list_read_file, | |
322 | .llseek = default_llseek,/* read accesses f_pos */ | |
323 | }; | |
324 | ||
19c7ac27 MB |
325 | static ssize_t platform_list_read_file(struct file *file, |
326 | char __user *user_buf, | |
327 | size_t count, loff_t *ppos) | |
328 | { | |
329 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 330 | ssize_t len, ret = 0; |
19c7ac27 MB |
331 | struct snd_soc_platform *platform; |
332 | ||
333 | if (!buf) | |
334 | return -ENOMEM; | |
335 | ||
2b194f9d MB |
336 | list_for_each_entry(platform, &platform_list, list) { |
337 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
338 | platform->name); | |
339 | if (len >= 0) | |
340 | ret += len; | |
341 | if (ret > PAGE_SIZE) { | |
342 | ret = PAGE_SIZE; | |
343 | break; | |
344 | } | |
345 | } | |
19c7ac27 | 346 | |
2b194f9d | 347 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
348 | |
349 | kfree(buf); | |
350 | ||
351 | return ret; | |
352 | } | |
353 | ||
354 | static const struct file_operations platform_list_fops = { | |
355 | .read = platform_list_read_file, | |
356 | .llseek = default_llseek,/* read accesses f_pos */ | |
357 | }; | |
358 | ||
a6052154 JN |
359 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
360 | { | |
361 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 362 | snd_soc_debugfs_root); |
3a45b867 | 363 | if (!card->debugfs_card_root) { |
a6052154 JN |
364 | dev_warn(card->dev, |
365 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
366 | return; |
367 | } | |
368 | ||
369 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
370 | card->debugfs_card_root, | |
371 | &card->pop_time); | |
372 | if (!card->debugfs_pop_time) | |
373 | dev_warn(card->dev, | |
374 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
375 | } |
376 | ||
377 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
378 | { | |
379 | debugfs_remove_recursive(card->debugfs_card_root); | |
380 | } | |
381 | ||
2624d5fa MB |
382 | #else |
383 | ||
384 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
385 | { | |
386 | } | |
387 | ||
388 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
389 | { | |
390 | } | |
b95fccbc AL |
391 | |
392 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
393 | { | |
394 | } | |
395 | ||
396 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
397 | { | |
398 | } | |
2624d5fa MB |
399 | #endif |
400 | ||
db2a4165 FM |
401 | #ifdef CONFIG_SND_SOC_AC97_BUS |
402 | /* unregister ac97 codec */ | |
403 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
404 | { | |
405 | if (codec->ac97->dev.bus) | |
406 | device_unregister(&codec->ac97->dev); | |
407 | return 0; | |
408 | } | |
409 | ||
410 | /* stop no dev release warning */ | |
411 | static void soc_ac97_device_release(struct device *dev){} | |
412 | ||
413 | /* register ac97 codec to bus */ | |
414 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
415 | { | |
416 | int err; | |
417 | ||
418 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 419 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
420 | codec->ac97->dev.release = soc_ac97_device_release; |
421 | ||
bb072bf0 | 422 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 423 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
424 | err = device_register(&codec->ac97->dev); |
425 | if (err < 0) { | |
426 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
427 | codec->ac97->dev.bus = NULL; | |
428 | return err; | |
429 | } | |
430 | return 0; | |
431 | } | |
432 | #endif | |
433 | ||
06f409d7 MB |
434 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
435 | { | |
436 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
437 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
438 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
439 | int ret; |
440 | ||
f0fba2ad LG |
441 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
442 | rtd->dai_link->symmetric_rates) { | |
443 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
444 | rtd->rate); | |
06f409d7 MB |
445 | |
446 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
447 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
448 | rtd->rate, |
449 | rtd->rate); | |
06f409d7 | 450 | if (ret < 0) { |
f0fba2ad | 451 | dev_err(&rtd->dev, |
06f409d7 MB |
452 | "Unable to apply rate symmetry constraint: %d\n", ret); |
453 | return ret; | |
454 | } | |
455 | } | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
db2a4165 FM |
460 | /* |
461 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
462 | * then initialized and any private data can be allocated. This also calls | |
463 | * startup for the cpu DAI, platform, machine and codec DAI. | |
464 | */ | |
465 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
466 | { | |
467 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 468 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
469 | struct snd_soc_platform *platform = rtd->platform; |
470 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
471 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
472 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
473 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
474 | int ret = 0; |
475 | ||
476 | mutex_lock(&pcm_mutex); | |
477 | ||
478 | /* startup the audio subsystem */ | |
f0fba2ad LG |
479 | if (cpu_dai->driver->ops->startup) { |
480 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
481 | if (ret < 0) { |
482 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 483 | cpu_dai->name); |
db2a4165 FM |
484 | goto out; |
485 | } | |
486 | } | |
487 | ||
f0fba2ad LG |
488 | if (platform->driver->ops->open) { |
489 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
490 | if (ret < 0) { |
491 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
492 | goto platform_err; | |
493 | } | |
494 | } | |
495 | ||
f0fba2ad LG |
496 | if (codec_dai->driver->ops->startup) { |
497 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 498 | if (ret < 0) { |
cb666e5b LG |
499 | printk(KERN_ERR "asoc: can't open codec %s\n", |
500 | codec_dai->name); | |
501 | goto codec_dai_err; | |
db2a4165 FM |
502 | } |
503 | } | |
504 | ||
f0fba2ad LG |
505 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
506 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 507 | if (ret < 0) { |
f0fba2ad | 508 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 509 | goto machine_err; |
db2a4165 FM |
510 | } |
511 | } | |
512 | ||
a00f90f9 | 513 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
514 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
515 | runtime->hw.rate_min = | |
f0fba2ad LG |
516 | max(codec_dai_drv->playback.rate_min, |
517 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 518 | runtime->hw.rate_max = |
f0fba2ad LG |
519 | min(codec_dai_drv->playback.rate_max, |
520 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 521 | runtime->hw.channels_min = |
f0fba2ad LG |
522 | max(codec_dai_drv->playback.channels_min, |
523 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 524 | runtime->hw.channels_max = |
f0fba2ad LG |
525 | min(codec_dai_drv->playback.channels_max, |
526 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 527 | runtime->hw.formats = |
f0fba2ad | 528 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 529 | runtime->hw.rates = |
f0fba2ad LG |
530 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
531 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 532 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
533 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
534 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 535 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 536 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
537 | } else { |
538 | runtime->hw.rate_min = | |
f0fba2ad LG |
539 | max(codec_dai_drv->capture.rate_min, |
540 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 541 | runtime->hw.rate_max = |
f0fba2ad LG |
542 | min(codec_dai_drv->capture.rate_max, |
543 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 544 | runtime->hw.channels_min = |
f0fba2ad LG |
545 | max(codec_dai_drv->capture.channels_min, |
546 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 547 | runtime->hw.channels_max = |
f0fba2ad LG |
548 | min(codec_dai_drv->capture.channels_max, |
549 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 550 | runtime->hw.formats = |
f0fba2ad | 551 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 552 | runtime->hw.rates = |
f0fba2ad LG |
553 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
554 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 555 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
556 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
557 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 558 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 559 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
560 | } |
561 | ||
562 | snd_pcm_limit_hw_rates(runtime); | |
563 | if (!runtime->hw.rates) { | |
564 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 565 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 566 | goto config_err; |
db2a4165 FM |
567 | } |
568 | if (!runtime->hw.formats) { | |
569 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 570 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 571 | goto config_err; |
db2a4165 FM |
572 | } |
573 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
574 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 575 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 576 | goto config_err; |
db2a4165 FM |
577 | } |
578 | ||
06f409d7 MB |
579 | /* Symmetry only applies if we've already got an active stream. */ |
580 | if (cpu_dai->active || codec_dai->active) { | |
581 | ret = soc_pcm_apply_symmetry(substream); | |
582 | if (ret != 0) | |
bb1c0478 | 583 | goto config_err; |
06f409d7 MB |
584 | } |
585 | ||
f0fba2ad LG |
586 | pr_debug("asoc: %s <-> %s info:\n", |
587 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
588 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
589 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
590 | runtime->hw.channels_max); | |
591 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
592 | runtime->hw.rate_max); | |
db2a4165 | 593 | |
14dc5734 | 594 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
595 | cpu_dai->playback_active++; |
596 | codec_dai->playback_active++; | |
14dc5734 | 597 | } else { |
f0fba2ad LG |
598 | cpu_dai->capture_active++; |
599 | codec_dai->capture_active++; | |
14dc5734 JB |
600 | } |
601 | cpu_dai->active++; | |
602 | codec_dai->active++; | |
f0fba2ad | 603 | rtd->codec->active++; |
db2a4165 FM |
604 | mutex_unlock(&pcm_mutex); |
605 | return 0; | |
606 | ||
bb1c0478 | 607 | config_err: |
f0fba2ad LG |
608 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
609 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 610 | |
bb1c0478 | 611 | machine_err: |
f0fba2ad LG |
612 | if (codec_dai->driver->ops->shutdown) |
613 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 614 | |
cb666e5b | 615 | codec_dai_err: |
f0fba2ad LG |
616 | if (platform->driver->ops->close) |
617 | platform->driver->ops->close(substream); | |
db2a4165 FM |
618 | |
619 | platform_err: | |
f0fba2ad LG |
620 | if (cpu_dai->driver->ops->shutdown) |
621 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
622 | out: |
623 | mutex_unlock(&pcm_mutex); | |
624 | return ret; | |
625 | } | |
626 | ||
627 | /* | |
3a4fa0a2 | 628 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
629 | * This is to ensure there are no pops or clicks in between any music tracks |
630 | * due to DAPM power cycling. | |
631 | */ | |
4484bb2e | 632 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 633 | { |
f0fba2ad LG |
634 | struct snd_soc_pcm_runtime *rtd = |
635 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
636 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
637 | |
638 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
639 | |
640 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
641 | codec_dai->driver->playback.stream_name, | |
642 | codec_dai->playback_active ? "active" : "inactive", | |
643 | codec_dai->pop_wait ? "yes" : "no"); | |
644 | ||
645 | /* are we waiting on this codec DAI stream */ | |
646 | if (codec_dai->pop_wait == 1) { | |
647 | codec_dai->pop_wait = 0; | |
648 | snd_soc_dapm_stream_event(rtd, | |
649 | codec_dai->driver->playback.stream_name, | |
650 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 651 | } |
f0fba2ad | 652 | |
db2a4165 FM |
653 | mutex_unlock(&pcm_mutex); |
654 | } | |
655 | ||
656 | /* | |
657 | * Called by ALSA when a PCM substream is closed. Private data can be | |
658 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
659 | * shutdown. | |
660 | */ | |
661 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
662 | { | |
663 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
664 | struct snd_soc_platform *platform = rtd->platform; |
665 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
666 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
667 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
668 | |
669 | mutex_lock(&pcm_mutex); | |
670 | ||
14dc5734 | 671 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
672 | cpu_dai->playback_active--; |
673 | codec_dai->playback_active--; | |
14dc5734 | 674 | } else { |
f0fba2ad LG |
675 | cpu_dai->capture_active--; |
676 | codec_dai->capture_active--; | |
db2a4165 | 677 | } |
14dc5734 JB |
678 | |
679 | cpu_dai->active--; | |
680 | codec_dai->active--; | |
db2a4165 FM |
681 | codec->active--; |
682 | ||
6010b2da MB |
683 | /* Muting the DAC suppresses artifacts caused during digital |
684 | * shutdown, for example from stopping clocks. | |
685 | */ | |
686 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
687 | snd_soc_dai_digital_mute(codec_dai, 1); | |
688 | ||
f0fba2ad LG |
689 | if (cpu_dai->driver->ops->shutdown) |
690 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 691 | |
f0fba2ad LG |
692 | if (codec_dai->driver->ops->shutdown) |
693 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 694 | |
f0fba2ad LG |
695 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
696 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 697 | |
f0fba2ad LG |
698 | if (platform->driver->ops->close) |
699 | platform->driver->ops->close(substream); | |
700 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
701 | |
702 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
703 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 704 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
705 | schedule_delayed_work(&rtd->delayed_work, |
706 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
707 | } else { |
708 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
709 | snd_soc_dapm_stream_event(rtd, |
710 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 711 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
712 | } |
713 | ||
714 | mutex_unlock(&pcm_mutex); | |
715 | return 0; | |
716 | } | |
717 | ||
718 | /* | |
719 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
720 | * rate, etc. This function is non atomic and can be called multiple times, | |
721 | * it can refer to the runtime info. | |
722 | */ | |
723 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
724 | { | |
725 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
726 | struct snd_soc_platform *platform = rtd->platform; |
727 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
728 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
729 | int ret = 0; |
730 | ||
731 | mutex_lock(&pcm_mutex); | |
cb666e5b | 732 | |
f0fba2ad LG |
733 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
734 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
735 | if (ret < 0) { |
736 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
737 | goto out; | |
738 | } | |
739 | } | |
740 | ||
f0fba2ad LG |
741 | if (platform->driver->ops->prepare) { |
742 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
743 | if (ret < 0) { |
744 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 745 | goto out; |
a71a468a | 746 | } |
db2a4165 FM |
747 | } |
748 | ||
f0fba2ad LG |
749 | if (codec_dai->driver->ops->prepare) { |
750 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
751 | if (ret < 0) { |
752 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 753 | goto out; |
a71a468a | 754 | } |
db2a4165 FM |
755 | } |
756 | ||
f0fba2ad LG |
757 | if (cpu_dai->driver->ops->prepare) { |
758 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
759 | if (ret < 0) { |
760 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
761 | goto out; | |
762 | } | |
763 | } | |
db2a4165 | 764 | |
d45f6219 MB |
765 | /* cancel any delayed stream shutdown that is pending */ |
766 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
767 | codec_dai->pop_wait) { | |
768 | codec_dai->pop_wait = 0; | |
f0fba2ad | 769 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 770 | } |
db2a4165 | 771 | |
452c5eaa | 772 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
773 | snd_soc_dapm_stream_event(rtd, |
774 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
775 | SND_SOC_DAPM_STREAM_START); |
776 | else | |
f0fba2ad LG |
777 | snd_soc_dapm_stream_event(rtd, |
778 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 779 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 780 | |
452c5eaa | 781 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
782 | |
783 | out: | |
784 | mutex_unlock(&pcm_mutex); | |
785 | return ret; | |
786 | } | |
787 | ||
788 | /* | |
789 | * Called by ALSA when the hardware params are set by application. This | |
790 | * function can also be called multiple times and can allocate buffers | |
791 | * (using snd_pcm_lib_* ). It's non-atomic. | |
792 | */ | |
793 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
794 | struct snd_pcm_hw_params *params) | |
795 | { | |
796 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
797 | struct snd_soc_platform *platform = rtd->platform; |
798 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
799 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
800 | int ret = 0; |
801 | ||
802 | mutex_lock(&pcm_mutex); | |
803 | ||
f0fba2ad LG |
804 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
805 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
806 | if (ret < 0) { |
807 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 808 | goto out; |
cb666e5b | 809 | } |
db2a4165 FM |
810 | } |
811 | ||
f0fba2ad LG |
812 | if (codec_dai->driver->ops->hw_params) { |
813 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
814 | if (ret < 0) { |
815 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
816 | codec_dai->name); |
817 | goto codec_err; | |
db2a4165 FM |
818 | } |
819 | } | |
820 | ||
f0fba2ad LG |
821 | if (cpu_dai->driver->ops->hw_params) { |
822 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 823 | if (ret < 0) { |
3ff3f64b | 824 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 825 | cpu_dai->name); |
db2a4165 FM |
826 | goto interface_err; |
827 | } | |
828 | } | |
829 | ||
f0fba2ad LG |
830 | if (platform->driver->ops->hw_params) { |
831 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 832 | if (ret < 0) { |
3ff3f64b | 833 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
834 | platform->name); |
835 | goto platform_err; | |
836 | } | |
837 | } | |
838 | ||
f0fba2ad | 839 | rtd->rate = params_rate(params); |
06f409d7 | 840 | |
db2a4165 FM |
841 | out: |
842 | mutex_unlock(&pcm_mutex); | |
843 | return ret; | |
844 | ||
db2a4165 | 845 | platform_err: |
f0fba2ad LG |
846 | if (cpu_dai->driver->ops->hw_free) |
847 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
848 | |
849 | interface_err: | |
f0fba2ad LG |
850 | if (codec_dai->driver->ops->hw_free) |
851 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
852 | |
853 | codec_err: | |
f0fba2ad LG |
854 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
855 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
856 | |
857 | mutex_unlock(&pcm_mutex); | |
858 | return ret; | |
859 | } | |
860 | ||
861 | /* | |
a00f90f9 | 862 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
863 | */ |
864 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
865 | { | |
866 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
867 | struct snd_soc_platform *platform = rtd->platform; |
868 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
869 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
870 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
871 | |
872 | mutex_lock(&pcm_mutex); | |
873 | ||
874 | /* apply codec digital mute */ | |
8c6529db LG |
875 | if (!codec->active) |
876 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
877 | |
878 | /* free any machine hw params */ | |
f0fba2ad LG |
879 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
880 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
881 | |
882 | /* free any DMA resources */ | |
f0fba2ad LG |
883 | if (platform->driver->ops->hw_free) |
884 | platform->driver->ops->hw_free(substream); | |
db2a4165 | 885 | |
a00f90f9 | 886 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
887 | if (codec_dai->driver->ops->hw_free) |
888 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 889 | |
f0fba2ad LG |
890 | if (cpu_dai->driver->ops->hw_free) |
891 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
892 | |
893 | mutex_unlock(&pcm_mutex); | |
894 | return 0; | |
895 | } | |
896 | ||
897 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
898 | { | |
899 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
900 | struct snd_soc_platform *platform = rtd->platform; |
901 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
902 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
903 | int ret; |
904 | ||
f0fba2ad LG |
905 | if (codec_dai->driver->ops->trigger) { |
906 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
907 | if (ret < 0) |
908 | return ret; | |
909 | } | |
910 | ||
f0fba2ad LG |
911 | if (platform->driver->ops->trigger) { |
912 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
913 | if (ret < 0) |
914 | return ret; | |
915 | } | |
916 | ||
f0fba2ad LG |
917 | if (cpu_dai->driver->ops->trigger) { |
918 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
919 | if (ret < 0) |
920 | return ret; | |
921 | } | |
922 | return 0; | |
923 | } | |
924 | ||
377b6f62 PU |
925 | /* |
926 | * soc level wrapper for pointer callback | |
258020d0 PU |
927 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
928 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
929 | */ |
930 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
931 | { | |
932 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
933 | struct snd_soc_platform *platform = rtd->platform; |
934 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
935 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 936 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 937 | snd_pcm_uframes_t offset = 0; |
258020d0 | 938 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 939 | |
f0fba2ad LG |
940 | if (platform->driver->ops->pointer) |
941 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 942 | |
f0fba2ad LG |
943 | if (cpu_dai->driver->ops->delay) |
944 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 945 | |
f0fba2ad LG |
946 | if (codec_dai->driver->ops->delay) |
947 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 948 | |
f0fba2ad LG |
949 | if (platform->driver->delay) |
950 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
951 | |
952 | runtime->delay = delay; | |
953 | ||
377b6f62 PU |
954 | return offset; |
955 | } | |
956 | ||
db2a4165 FM |
957 | /* ASoC PCM operations */ |
958 | static struct snd_pcm_ops soc_pcm_ops = { | |
959 | .open = soc_pcm_open, | |
960 | .close = soc_codec_close, | |
961 | .hw_params = soc_pcm_hw_params, | |
962 | .hw_free = soc_pcm_hw_free, | |
963 | .prepare = soc_pcm_prepare, | |
964 | .trigger = soc_pcm_trigger, | |
377b6f62 | 965 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
966 | }; |
967 | ||
968 | #ifdef CONFIG_PM | |
969 | /* powers down audio subsystem for suspend */ | |
416356fc | 970 | static int soc_suspend(struct device *dev) |
db2a4165 | 971 | { |
416356fc | 972 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 973 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
2eea392d | 974 | struct snd_soc_codec *codec; |
db2a4165 FM |
975 | int i; |
976 | ||
e3509ff0 DM |
977 | /* If the initialization of this soc device failed, there is no codec |
978 | * associated with it. Just bail out in this case. | |
979 | */ | |
f0fba2ad | 980 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
981 | return 0; |
982 | ||
6ed25978 AG |
983 | /* Due to the resume being scheduled into a workqueue we could |
984 | * suspend before that's finished - wait for it to complete. | |
985 | */ | |
f0fba2ad LG |
986 | snd_power_lock(card->snd_card); |
987 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
988 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
989 | |
990 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 991 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 992 | |
a00f90f9 | 993 | /* mute any active DACs */ |
f0fba2ad LG |
994 | for (i = 0; i < card->num_rtd; i++) { |
995 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
996 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 997 | |
f0fba2ad | 998 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
999 | continue; |
1000 | ||
f0fba2ad LG |
1001 | if (drv->ops->digital_mute && dai->playback_active) |
1002 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1003 | } |
1004 | ||
4ccab3e7 | 1005 | /* suspend all pcms */ |
f0fba2ad LG |
1006 | for (i = 0; i < card->num_rtd; i++) { |
1007 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1008 | continue; |
1009 | ||
f0fba2ad | 1010 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1011 | } |
4ccab3e7 | 1012 | |
87506549 | 1013 | if (card->suspend_pre) |
70b2ac12 | 1014 | card->suspend_pre(card); |
db2a4165 | 1015 | |
f0fba2ad LG |
1016 | for (i = 0; i < card->num_rtd; i++) { |
1017 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1018 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1019 | |
f0fba2ad | 1020 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1021 | continue; |
1022 | ||
f0fba2ad LG |
1023 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1024 | cpu_dai->driver->suspend(cpu_dai); | |
1025 | if (platform->driver->suspend && !platform->suspended) { | |
1026 | platform->driver->suspend(cpu_dai); | |
1027 | platform->suspended = 1; | |
1028 | } | |
db2a4165 FM |
1029 | } |
1030 | ||
1031 | /* close any waiting streams and save state */ | |
f0fba2ad | 1032 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 1033 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 1034 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1035 | } |
db2a4165 | 1036 | |
f0fba2ad LG |
1037 | for (i = 0; i < card->num_rtd; i++) { |
1038 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1039 | |
f0fba2ad | 1040 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1041 | continue; |
1042 | ||
f0fba2ad LG |
1043 | if (driver->playback.stream_name != NULL) |
1044 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1045 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1046 | |
1047 | if (driver->capture.stream_name != NULL) | |
1048 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1049 | SND_SOC_DAPM_STREAM_SUSPEND); |
1050 | } | |
1051 | ||
f0fba2ad | 1052 | /* suspend all CODECs */ |
2eea392d | 1053 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1054 | /* If there are paths active then the CODEC will be held with |
1055 | * bias _ON and should not be suspended. */ | |
1056 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1057 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1058 | case SND_SOC_BIAS_STANDBY: |
1059 | case SND_SOC_BIAS_OFF: | |
1060 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1061 | codec->suspended = 1; | |
1062 | break; | |
1063 | default: | |
1064 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1065 | break; | |
1066 | } | |
1547aba9 MB |
1067 | } |
1068 | } | |
db2a4165 | 1069 | |
f0fba2ad LG |
1070 | for (i = 0; i < card->num_rtd; i++) { |
1071 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1072 | |
f0fba2ad | 1073 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1074 | continue; |
1075 | ||
f0fba2ad LG |
1076 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1077 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1078 | } |
1079 | ||
87506549 | 1080 | if (card->suspend_post) |
70b2ac12 | 1081 | card->suspend_post(card); |
db2a4165 FM |
1082 | |
1083 | return 0; | |
1084 | } | |
1085 | ||
6ed25978 AG |
1086 | /* deferred resume work, so resume can complete before we finished |
1087 | * setting our codec back up, which can be very slow on I2C | |
1088 | */ | |
1089 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1090 | { |
f0fba2ad LG |
1091 | struct snd_soc_card *card = |
1092 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
2eea392d | 1093 | struct snd_soc_codec *codec; |
db2a4165 FM |
1094 | int i; |
1095 | ||
6ed25978 AG |
1096 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1097 | * so userspace apps are blocked from touching us | |
1098 | */ | |
1099 | ||
f0fba2ad | 1100 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1101 | |
9949788b | 1102 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1103 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1104 | |
87506549 | 1105 | if (card->resume_pre) |
70b2ac12 | 1106 | card->resume_pre(card); |
db2a4165 | 1107 | |
f0fba2ad LG |
1108 | /* resume AC97 DAIs */ |
1109 | for (i = 0; i < card->num_rtd; i++) { | |
1110 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1111 | |
f0fba2ad | 1112 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1113 | continue; |
1114 | ||
f0fba2ad LG |
1115 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1116 | cpu_dai->driver->resume(cpu_dai); | |
1117 | } | |
1118 | ||
2eea392d | 1119 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1120 | /* If the CODEC was idle over suspend then it will have been |
1121 | * left with bias OFF or STANDBY and suspended so we must now | |
1122 | * resume. Otherwise the suspend was suppressed. | |
1123 | */ | |
1124 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1125 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1126 | case SND_SOC_BIAS_STANDBY: |
1127 | case SND_SOC_BIAS_OFF: | |
1128 | codec->driver->resume(codec); | |
1129 | codec->suspended = 0; | |
1130 | break; | |
1131 | default: | |
1132 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1133 | break; | |
1134 | } | |
1547aba9 MB |
1135 | } |
1136 | } | |
db2a4165 | 1137 | |
f0fba2ad LG |
1138 | for (i = 0; i < card->num_rtd; i++) { |
1139 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1140 | |
f0fba2ad | 1141 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1142 | continue; |
1143 | ||
f0fba2ad LG |
1144 | if (driver->playback.stream_name != NULL) |
1145 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1146 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1147 | |
1148 | if (driver->capture.stream_name != NULL) | |
1149 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1150 | SND_SOC_DAPM_STREAM_RESUME); |
1151 | } | |
1152 | ||
3ff3f64b | 1153 | /* unmute any active DACs */ |
f0fba2ad LG |
1154 | for (i = 0; i < card->num_rtd; i++) { |
1155 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1156 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1157 | |
f0fba2ad | 1158 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1159 | continue; |
1160 | ||
f0fba2ad LG |
1161 | if (drv->ops->digital_mute && dai->playback_active) |
1162 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1163 | } |
1164 | ||
f0fba2ad LG |
1165 | for (i = 0; i < card->num_rtd; i++) { |
1166 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1167 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1168 | |
f0fba2ad | 1169 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1170 | continue; |
1171 | ||
f0fba2ad LG |
1172 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1173 | cpu_dai->driver->resume(cpu_dai); | |
1174 | if (platform->driver->resume && platform->suspended) { | |
1175 | platform->driver->resume(cpu_dai); | |
1176 | platform->suspended = 0; | |
1177 | } | |
db2a4165 FM |
1178 | } |
1179 | ||
87506549 | 1180 | if (card->resume_post) |
70b2ac12 | 1181 | card->resume_post(card); |
db2a4165 | 1182 | |
f0fba2ad | 1183 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1184 | |
1185 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1186 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1187 | } |
1188 | ||
1189 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1190 | static int soc_resume(struct device *dev) |
6ed25978 | 1191 | { |
416356fc | 1192 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1193 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1194 | int i; | |
b9dd94a8 | 1195 | |
64ab9baa MB |
1196 | /* AC97 devices might have other drivers hanging off them so |
1197 | * need to resume immediately. Other drivers don't have that | |
1198 | * problem and may take a substantial amount of time to resume | |
1199 | * due to I/O costs and anti-pop so handle them out of line. | |
1200 | */ | |
f0fba2ad LG |
1201 | for (i = 0; i < card->num_rtd; i++) { |
1202 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1203 | if (cpu_dai->driver->ac97_control) { | |
1204 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1205 | soc_resume_deferred(&card->deferred_resume_work); | |
1206 | } else { | |
1207 | dev_dbg(dev, "Scheduling resume work\n"); | |
1208 | if (!schedule_work(&card->deferred_resume_work)) | |
1209 | dev_err(dev, "resume work item may be lost\n"); | |
1210 | } | |
64ab9baa | 1211 | } |
6ed25978 | 1212 | |
db2a4165 FM |
1213 | return 0; |
1214 | } | |
db2a4165 FM |
1215 | #else |
1216 | #define soc_suspend NULL | |
1217 | #define soc_resume NULL | |
1218 | #endif | |
1219 | ||
02a06d30 BS |
1220 | static struct snd_soc_dai_ops null_dai_ops = { |
1221 | }; | |
1222 | ||
f0fba2ad | 1223 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1224 | { |
f0fba2ad LG |
1225 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1226 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1227 | struct snd_soc_codec *codec; |
435c5e25 | 1228 | struct snd_soc_platform *platform; |
f0fba2ad | 1229 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1230 | |
f0fba2ad LG |
1231 | if (rtd->complete) |
1232 | return 1; | |
1233 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1234 | |
f0fba2ad LG |
1235 | /* do we already have the CPU DAI for this link ? */ |
1236 | if (rtd->cpu_dai) { | |
1237 | goto find_codec; | |
1238 | } | |
1239 | /* no, then find CPU DAI from registered DAIs*/ | |
1240 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1241 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1242 | ||
1243 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1244 | return -ENODEV; | |
1245 | ||
1246 | rtd->cpu_dai = cpu_dai; | |
1247 | goto find_codec; | |
435c5e25 | 1248 | } |
435c5e25 | 1249 | } |
f0fba2ad LG |
1250 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1251 | dai_link->cpu_dai_name); | |
6308419a | 1252 | |
f0fba2ad LG |
1253 | find_codec: |
1254 | /* do we already have the CODEC for this link ? */ | |
1255 | if (rtd->codec) { | |
1256 | goto find_platform; | |
1257 | } | |
1258 | ||
1259 | /* no, then find CODEC from registered CODECs*/ | |
1260 | list_for_each_entry(codec, &codec_list, list) { | |
1261 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1262 | rtd->codec = codec; | |
1263 | ||
f0fba2ad LG |
1264 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
1265 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1266 | if (codec->dev == codec_dai->dev && | |
1267 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1268 | rtd->codec_dai = codec_dai; | |
1269 | goto find_platform; | |
1270 | } | |
435c5e25 | 1271 | } |
f0fba2ad LG |
1272 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1273 | dai_link->codec_dai_name); | |
1274 | ||
1275 | goto find_platform; | |
435c5e25 | 1276 | } |
f0fba2ad LG |
1277 | } |
1278 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1279 | dai_link->codec_name); | |
6b05eda6 | 1280 | |
f0fba2ad LG |
1281 | find_platform: |
1282 | /* do we already have the CODEC DAI for this link ? */ | |
1283 | if (rtd->platform) { | |
1284 | goto out; | |
c5af3a2e | 1285 | } |
f0fba2ad LG |
1286 | /* no, then find CPU DAI from registered DAIs*/ |
1287 | list_for_each_entry(platform, &platform_list, list) { | |
1288 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
f0fba2ad LG |
1289 | rtd->platform = platform; |
1290 | goto out; | |
1291 | } | |
02a06d30 BS |
1292 | } |
1293 | ||
f0fba2ad LG |
1294 | dev_dbg(card->dev, "platform %s not registered\n", |
1295 | dai_link->platform_name); | |
1296 | return 0; | |
1297 | ||
1298 | out: | |
1299 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1300 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1301 | rtd->complete = 1; | |
1302 | card->num_rtd++; | |
1303 | } | |
1304 | return 1; | |
1305 | } | |
1306 | ||
589c3563 JN |
1307 | static void soc_remove_codec(struct snd_soc_codec *codec) |
1308 | { | |
1309 | int err; | |
1310 | ||
1311 | if (codec->driver->remove) { | |
1312 | err = codec->driver->remove(codec); | |
1313 | if (err < 0) | |
1314 | dev_err(codec->dev, | |
1315 | "asoc: failed to remove %s: %d\n", | |
1316 | codec->name, err); | |
1317 | } | |
1318 | ||
1319 | /* Make sure all DAPM widgets are freed */ | |
1320 | snd_soc_dapm_free(&codec->dapm); | |
1321 | ||
1322 | soc_cleanup_codec_debugfs(codec); | |
1323 | codec->probed = 0; | |
1324 | list_del(&codec->card_list); | |
1325 | module_put(codec->dev->driver->owner); | |
1326 | } | |
1327 | ||
f0fba2ad LG |
1328 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) |
1329 | { | |
1330 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1331 | struct snd_soc_codec *codec = rtd->codec; | |
1332 | struct snd_soc_platform *platform = rtd->platform; | |
1333 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1334 | int err; | |
1335 | ||
1336 | /* unregister the rtd device */ | |
1337 | if (rtd->dev_registered) { | |
1338 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 1339 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
1340 | device_unregister(&rtd->dev); |
1341 | rtd->dev_registered = 0; | |
1342 | } | |
1343 | ||
1344 | /* remove the CODEC DAI */ | |
1345 | if (codec_dai && codec_dai->probed) { | |
1346 | if (codec_dai->driver->remove) { | |
1347 | err = codec_dai->driver->remove(codec_dai); | |
1348 | if (err < 0) | |
1349 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1350 | } |
f0fba2ad LG |
1351 | codec_dai->probed = 0; |
1352 | list_del(&codec_dai->card_list); | |
1353 | } | |
6b05eda6 | 1354 | |
f0fba2ad LG |
1355 | /* remove the platform */ |
1356 | if (platform && platform->probed) { | |
1357 | if (platform->driver->remove) { | |
1358 | err = platform->driver->remove(platform); | |
1359 | if (err < 0) | |
1360 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1361 | } | |
1362 | platform->probed = 0; | |
1363 | list_del(&platform->card_list); | |
1364 | module_put(platform->dev->driver->owner); | |
1365 | } | |
435c5e25 | 1366 | |
f0fba2ad | 1367 | /* remove the CODEC */ |
589c3563 JN |
1368 | if (codec && codec->probed) |
1369 | soc_remove_codec(codec); | |
db2a4165 | 1370 | |
f0fba2ad LG |
1371 | /* remove the cpu_dai */ |
1372 | if (cpu_dai && cpu_dai->probed) { | |
1373 | if (cpu_dai->driver->remove) { | |
1374 | err = cpu_dai->driver->remove(cpu_dai); | |
1375 | if (err < 0) | |
1376 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1377 | } |
f0fba2ad LG |
1378 | cpu_dai->probed = 0; |
1379 | list_del(&cpu_dai->card_list); | |
1380 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1381 | } |
f0fba2ad | 1382 | } |
db2a4165 | 1383 | |
ead9b919 JN |
1384 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1385 | struct snd_soc_codec *codec) | |
1386 | { | |
1387 | int i; | |
1388 | ||
ff819b83 | 1389 | if (card->codec_conf == NULL) |
ead9b919 JN |
1390 | return; |
1391 | ||
ff819b83 DP |
1392 | for (i = 0; i < card->num_configs; i++) { |
1393 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1394 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1395 | codec->name_prefix = map->name_prefix; | |
1396 | break; | |
1397 | } | |
1398 | } | |
1399 | } | |
1400 | ||
589c3563 JN |
1401 | static int soc_probe_codec(struct snd_soc_card *card, |
1402 | struct snd_soc_codec *codec) | |
1403 | { | |
1404 | int ret = 0; | |
1405 | ||
1406 | codec->card = card; | |
1407 | codec->dapm.card = card; | |
1408 | soc_set_name_prefix(card, codec); | |
1409 | ||
1410 | if (codec->driver->probe) { | |
1411 | ret = codec->driver->probe(codec); | |
1412 | if (ret < 0) { | |
1413 | dev_err(codec->dev, | |
1414 | "asoc: failed to probe CODEC %s: %d\n", | |
1415 | codec->name, ret); | |
1416 | return ret; | |
1417 | } | |
1418 | } | |
1419 | ||
1420 | soc_init_codec_debugfs(codec); | |
1421 | ||
1422 | /* mark codec as probed and add to card codec list */ | |
f6c2ed5d HP |
1423 | if (!try_module_get(codec->dev->driver->owner)) |
1424 | return -ENODEV; | |
1425 | ||
589c3563 JN |
1426 | codec->probed = 1; |
1427 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1428 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 JN |
1429 | |
1430 | return ret; | |
1431 | } | |
1432 | ||
f0fba2ad LG |
1433 | static void rtd_release(struct device *dev) {} |
1434 | ||
589c3563 JN |
1435 | static int soc_post_component_init(struct snd_soc_card *card, |
1436 | struct snd_soc_codec *codec, | |
1437 | int num, int dailess) | |
1438 | { | |
1439 | struct snd_soc_dai_link *dai_link = NULL; | |
1440 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1441 | struct snd_soc_pcm_runtime *rtd; | |
1442 | const char *temp, *name; | |
1443 | int ret = 0; | |
1444 | ||
1445 | if (!dailess) { | |
1446 | dai_link = &card->dai_link[num]; | |
1447 | rtd = &card->rtd[num]; | |
1448 | name = dai_link->name; | |
1449 | } else { | |
1450 | aux_dev = &card->aux_dev[num]; | |
1451 | rtd = &card->rtd_aux[num]; | |
1452 | name = aux_dev->name; | |
1453 | } | |
1454 | ||
1455 | /* machine controls, routes and widgets are not prefixed */ | |
1456 | temp = codec->name_prefix; | |
1457 | codec->name_prefix = NULL; | |
1458 | ||
1459 | /* do machine specific initialization */ | |
1460 | if (!dailess && dai_link->init) | |
1461 | ret = dai_link->init(rtd); | |
1462 | else if (dailess && aux_dev->init) | |
1463 | ret = aux_dev->init(&codec->dapm); | |
1464 | if (ret < 0) { | |
1465 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1466 | return ret; | |
1467 | } | |
1468 | codec->name_prefix = temp; | |
1469 | ||
1470 | /* Make sure all DAPM widgets are instantiated */ | |
1471 | snd_soc_dapm_new_widgets(&codec->dapm); | |
589c3563 JN |
1472 | |
1473 | /* register the rtd device */ | |
1474 | rtd->codec = codec; | |
1475 | rtd->card = card; | |
1476 | rtd->dev.parent = card->dev; | |
1477 | rtd->dev.release = rtd_release; | |
1478 | rtd->dev.init_name = name; | |
1479 | ret = device_register(&rtd->dev); | |
1480 | if (ret < 0) { | |
1481 | dev_err(card->dev, | |
1482 | "asoc: failed to register runtime device: %d\n", ret); | |
1483 | return ret; | |
1484 | } | |
1485 | rtd->dev_registered = 1; | |
1486 | ||
1487 | /* add DAPM sysfs entries for this codec */ | |
1488 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1489 | if (ret < 0) | |
1490 | dev_err(codec->dev, | |
1491 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1492 | ret); | |
1493 | ||
1494 | /* add codec sysfs entries */ | |
1495 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1496 | if (ret < 0) | |
1497 | dev_err(codec->dev, | |
1498 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1499 | ||
1500 | return 0; | |
1501 | } | |
1502 | ||
f0fba2ad LG |
1503 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1504 | { | |
1505 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1506 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1507 | struct snd_soc_codec *codec = rtd->codec; | |
1508 | struct snd_soc_platform *platform = rtd->platform; | |
1509 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1510 | int ret; | |
1511 | ||
1512 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1513 | ||
1514 | /* config components */ | |
1515 | codec_dai->codec = codec; | |
f0fba2ad | 1516 | cpu_dai->platform = platform; |
f0fba2ad LG |
1517 | codec_dai->card = card; |
1518 | cpu_dai->card = card; | |
1519 | ||
1520 | /* set default power off timeout */ | |
1521 | rtd->pmdown_time = pmdown_time; | |
1522 | ||
1523 | /* probe the cpu_dai */ | |
1524 | if (!cpu_dai->probed) { | |
1525 | if (cpu_dai->driver->probe) { | |
1526 | ret = cpu_dai->driver->probe(cpu_dai); | |
1527 | if (ret < 0) { | |
1528 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1529 | cpu_dai->name); | |
1530 | return ret; | |
1531 | } | |
1532 | } | |
1533 | cpu_dai->probed = 1; | |
1534 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1535 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1536 | } |
1537 | ||
f0fba2ad LG |
1538 | /* probe the CODEC */ |
1539 | if (!codec->probed) { | |
589c3563 JN |
1540 | ret = soc_probe_codec(card, codec); |
1541 | if (ret < 0) | |
1542 | return ret; | |
db2a4165 FM |
1543 | } |
1544 | ||
f0fba2ad LG |
1545 | /* probe the platform */ |
1546 | if (!platform->probed) { | |
1547 | if (platform->driver->probe) { | |
1548 | ret = platform->driver->probe(platform); | |
1549 | if (ret < 0) { | |
1550 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1551 | platform->name); | |
1552 | return ret; | |
1553 | } | |
1554 | } | |
1555 | /* mark platform as probed and add to card platform list */ | |
f6c2ed5d HP |
1556 | |
1557 | if (!try_module_get(platform->dev->driver->owner)) | |
1558 | return -ENODEV; | |
1559 | ||
f0fba2ad LG |
1560 | platform->probed = 1; |
1561 | list_add(&platform->card_list, &card->platform_dev_list); | |
1562 | } | |
6ed25978 | 1563 | |
f0fba2ad LG |
1564 | /* probe the CODEC DAI */ |
1565 | if (!codec_dai->probed) { | |
1566 | if (codec_dai->driver->probe) { | |
1567 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1568 | if (ret < 0) { |
f0fba2ad LG |
1569 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1570 | codec_dai->name); | |
1571 | return ret; | |
fe3e78e0 MB |
1572 | } |
1573 | } | |
f0fba2ad LG |
1574 | |
1575 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1576 | codec_dai->probed = 1; | |
1577 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1578 | } |
1579 | ||
f0fba2ad LG |
1580 | /* DAPM dai link stream work */ |
1581 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1582 | ||
589c3563 JN |
1583 | ret = soc_post_component_init(card, codec, num, 0); |
1584 | if (ret) | |
f0fba2ad | 1585 | return ret; |
fe3e78e0 | 1586 | |
f0fba2ad LG |
1587 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1588 | if (ret < 0) | |
1589 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1590 | ||
f0fba2ad LG |
1591 | /* create the pcm */ |
1592 | ret = soc_new_pcm(rtd, num); | |
1593 | if (ret < 0) { | |
1594 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1595 | return ret; | |
1596 | } | |
1597 | ||
1598 | /* add platform data for AC97 devices */ | |
1599 | if (rtd->codec_dai->driver->ac97_control) | |
1600 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1601 | ||
1602 | return 0; | |
1603 | } | |
1604 | ||
fe3e78e0 | 1605 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1606 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1607 | { | |
1608 | int ret; | |
1609 | ||
fe3e78e0 MB |
1610 | /* Only instantiate AC97 if not already done by the adaptor |
1611 | * for the generic AC97 subsystem. | |
1612 | */ | |
f0fba2ad | 1613 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1614 | /* |
1615 | * It is possible that the AC97 device is already registered to | |
1616 | * the device subsystem. This happens when the device is created | |
1617 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1618 | * is the generic AC97 glue but others migh emerge. | |
1619 | * | |
1620 | * In those cases we don't try to register the device again. | |
1621 | */ | |
1622 | if (!rtd->codec->ac97_created) | |
1623 | return 0; | |
f0fba2ad LG |
1624 | |
1625 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1626 | if (ret < 0) { |
1627 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1628 | return ret; |
fe3e78e0 | 1629 | } |
f0fba2ad LG |
1630 | |
1631 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1632 | } |
f0fba2ad LG |
1633 | return 0; |
1634 | } | |
1635 | ||
1636 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1637 | { | |
1638 | if (codec->ac97_registered) { | |
1639 | soc_ac97_dev_unregister(codec); | |
1640 | codec->ac97_registered = 0; | |
1641 | } | |
1642 | } | |
fe3e78e0 MB |
1643 | #endif |
1644 | ||
2eea392d JN |
1645 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1646 | { | |
1647 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1648 | struct snd_soc_codec *codec; |
676ad98a | 1649 | int ret = -ENODEV; |
2eea392d JN |
1650 | |
1651 | /* find CODEC from registered CODECs*/ | |
1652 | list_for_each_entry(codec, &codec_list, list) { | |
1653 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1654 | if (codec->probed) { | |
1655 | dev_err(codec->dev, | |
1656 | "asoc: codec already probed"); | |
1657 | ret = -EBUSY; | |
1658 | goto out; | |
1659 | } | |
676ad98a | 1660 | goto found; |
2eea392d JN |
1661 | } |
1662 | } | |
676ad98a JN |
1663 | /* codec not found */ |
1664 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1665 | goto out; | |
2eea392d | 1666 | |
676ad98a | 1667 | found: |
2eea392d JN |
1668 | if (!try_module_get(codec->dev->driver->owner)) |
1669 | return -ENODEV; | |
1670 | ||
589c3563 | 1671 | ret = soc_probe_codec(card, codec); |
2eea392d | 1672 | if (ret < 0) |
589c3563 | 1673 | return ret; |
2eea392d | 1674 | |
589c3563 | 1675 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1676 | |
1677 | out: | |
1678 | return ret; | |
1679 | } | |
1680 | ||
1681 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1682 | { | |
1683 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1684 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1685 | |
1686 | /* unregister the rtd device */ | |
1687 | if (rtd->dev_registered) { | |
589c3563 | 1688 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1689 | device_unregister(&rtd->dev); |
1690 | rtd->dev_registered = 0; | |
1691 | } | |
1692 | ||
589c3563 JN |
1693 | if (codec && codec->probed) |
1694 | soc_remove_codec(codec); | |
2eea392d JN |
1695 | } |
1696 | ||
fdf0f54d DP |
1697 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1698 | enum snd_soc_compress_type compress_type) | |
1699 | { | |
1700 | int ret; | |
1701 | ||
1702 | if (codec->cache_init) | |
1703 | return 0; | |
1704 | ||
1705 | /* override the compress_type if necessary */ | |
1706 | if (compress_type && codec->compress_type != compress_type) | |
1707 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1708 | ret = snd_soc_cache_init(codec); |
1709 | if (ret < 0) { | |
1710 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1711 | ret); | |
1712 | return ret; | |
1713 | } | |
1714 | codec->cache_init = 1; | |
1715 | return 0; | |
1716 | } | |
1717 | ||
f0fba2ad LG |
1718 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1719 | { | |
fdf0f54d DP |
1720 | struct snd_soc_codec *codec; |
1721 | struct snd_soc_codec_conf *codec_conf; | |
1722 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1723 | int ret, i; |
fe3e78e0 | 1724 | |
f0fba2ad | 1725 | mutex_lock(&card->mutex); |
dbe21408 | 1726 | |
f0fba2ad LG |
1727 | if (card->instantiated) { |
1728 | mutex_unlock(&card->mutex); | |
1729 | return; | |
1730 | } | |
fe3e78e0 | 1731 | |
f0fba2ad LG |
1732 | /* bind DAIs */ |
1733 | for (i = 0; i < card->num_links; i++) | |
1734 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1735 | |
f0fba2ad LG |
1736 | /* bind completed ? */ |
1737 | if (card->num_rtd != card->num_links) { | |
1738 | mutex_unlock(&card->mutex); | |
1739 | return; | |
1740 | } | |
435c5e25 | 1741 | |
fdf0f54d DP |
1742 | /* initialize the register cache for each available codec */ |
1743 | list_for_each_entry(codec, &codec_list, list) { | |
1744 | if (codec->cache_init) | |
1745 | continue; | |
861f2faf DP |
1746 | /* by default we don't override the compress_type */ |
1747 | compress_type = 0; | |
fdf0f54d DP |
1748 | /* check to see if we need to override the compress_type */ |
1749 | for (i = 0; i < card->num_configs; ++i) { | |
1750 | codec_conf = &card->codec_conf[i]; | |
1751 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1752 | compress_type = codec_conf->compress_type; | |
1753 | if (compress_type && compress_type | |
1754 | != codec->compress_type) | |
1755 | break; | |
1756 | } | |
1757 | } | |
fdf0f54d DP |
1758 | ret = snd_soc_init_codec_cache(codec, compress_type); |
1759 | if (ret < 0) { | |
1760 | mutex_unlock(&card->mutex); | |
1761 | return; | |
1762 | } | |
1763 | } | |
1764 | ||
f0fba2ad LG |
1765 | /* card bind complete so register a sound card */ |
1766 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1767 | card->owner, 0, &card->snd_card); | |
1768 | if (ret < 0) { | |
1769 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1770 | card->name); | |
1771 | mutex_unlock(&card->mutex); | |
1772 | return; | |
1773 | } | |
1774 | card->snd_card->dev = card->dev; | |
1775 | ||
1776 | #ifdef CONFIG_PM | |
1777 | /* deferred resume work */ | |
1778 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1779 | #endif | |
db2a4165 | 1780 | |
f0fba2ad LG |
1781 | /* initialise the sound card only once */ |
1782 | if (card->probe) { | |
e7361ec4 | 1783 | ret = card->probe(card); |
f0fba2ad LG |
1784 | if (ret < 0) |
1785 | goto card_probe_error; | |
1786 | } | |
fe3e78e0 | 1787 | |
f0fba2ad LG |
1788 | for (i = 0; i < card->num_links; i++) { |
1789 | ret = soc_probe_dai_link(card, i); | |
1790 | if (ret < 0) { | |
321de0d0 MB |
1791 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1792 | card->name, ret); | |
f0fba2ad LG |
1793 | goto probe_dai_err; |
1794 | } | |
1795 | } | |
db2a4165 | 1796 | |
2eea392d JN |
1797 | for (i = 0; i < card->num_aux_devs; i++) { |
1798 | ret = soc_probe_aux_dev(card, i); | |
1799 | if (ret < 0) { | |
1800 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1801 | card->name, ret); | |
1802 | goto probe_aux_dev_err; | |
1803 | } | |
1804 | } | |
1805 | ||
f0fba2ad LG |
1806 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1807 | "%s", card->name); | |
1808 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1809 | "%s", card->name); | |
1810 | ||
1811 | ret = snd_card_register(card->snd_card); | |
1812 | if (ret < 0) { | |
1813 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1814 | goto probe_aux_dev_err; |
db2a4165 FM |
1815 | } |
1816 | ||
f0fba2ad LG |
1817 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1818 | /* register any AC97 codecs */ | |
1819 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1820 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1821 | if (ret < 0) { | |
1822 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1823 | while (--i >= 0) | |
7d8316df | 1824 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1825 | goto probe_aux_dev_err; |
f0fba2ad | 1826 | } |
6b3ed785 | 1827 | } |
f0fba2ad LG |
1828 | #endif |
1829 | ||
1830 | card->instantiated = 1; | |
1831 | mutex_unlock(&card->mutex); | |
1832 | return; | |
1833 | ||
2eea392d JN |
1834 | probe_aux_dev_err: |
1835 | for (i = 0; i < card->num_aux_devs; i++) | |
1836 | soc_remove_aux_dev(card, i); | |
1837 | ||
f0fba2ad LG |
1838 | probe_dai_err: |
1839 | for (i = 0; i < card->num_links; i++) | |
1840 | soc_remove_dai_link(card, i); | |
1841 | ||
1842 | card_probe_error: | |
87506549 | 1843 | if (card->remove) |
e7361ec4 | 1844 | card->remove(card); |
f0fba2ad LG |
1845 | |
1846 | snd_card_free(card->snd_card); | |
1847 | ||
1848 | mutex_unlock(&card->mutex); | |
435c5e25 | 1849 | } |
db2a4165 | 1850 | |
435c5e25 | 1851 | /* |
421f91d2 | 1852 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1853 | * client_mutex. |
1854 | */ | |
1855 | static void snd_soc_instantiate_cards(void) | |
1856 | { | |
1857 | struct snd_soc_card *card; | |
1858 | list_for_each_entry(card, &card_list, list) | |
1859 | snd_soc_instantiate_card(card); | |
1860 | } | |
1861 | ||
1862 | /* probes a new socdev */ | |
1863 | static int soc_probe(struct platform_device *pdev) | |
1864 | { | |
f0fba2ad | 1865 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1866 | int ret = 0; |
435c5e25 | 1867 | |
70a7ca34 VK |
1868 | /* |
1869 | * no card, so machine driver should be registering card | |
1870 | * we should not be here in that case so ret error | |
1871 | */ | |
1872 | if (!card) | |
1873 | return -EINVAL; | |
1874 | ||
435c5e25 MB |
1875 | /* Bodge while we unpick instantiation */ |
1876 | card->dev = &pdev->dev; | |
4e10bda0 | 1877 | snd_soc_initialize_card_lists(card); |
f0fba2ad | 1878 | |
435c5e25 MB |
1879 | ret = snd_soc_register_card(card); |
1880 | if (ret != 0) { | |
1881 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1882 | return ret; | |
1883 | } | |
1884 | ||
1885 | return 0; | |
db2a4165 FM |
1886 | } |
1887 | ||
b0e26485 | 1888 | static int soc_cleanup_card_resources(struct snd_soc_card *card) |
db2a4165 FM |
1889 | { |
1890 | int i; | |
db2a4165 | 1891 | |
b0e26485 VK |
1892 | /* make sure any delayed work runs */ |
1893 | for (i = 0; i < card->num_rtd; i++) { | |
1894 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1895 | flush_delayed_work_sync(&rtd->delayed_work); | |
1896 | } | |
914dc182 | 1897 | |
b0e26485 VK |
1898 | /* remove auxiliary devices */ |
1899 | for (i = 0; i < card->num_aux_devs; i++) | |
1900 | soc_remove_aux_dev(card, i); | |
db2a4165 | 1901 | |
b0e26485 VK |
1902 | /* remove and free each DAI */ |
1903 | for (i = 0; i < card->num_rtd; i++) | |
1904 | soc_remove_dai_link(card, i); | |
2eea392d | 1905 | |
b0e26485 | 1906 | soc_cleanup_card_debugfs(card); |
f0fba2ad | 1907 | |
b0e26485 VK |
1908 | /* remove the card */ |
1909 | if (card->remove) | |
e7361ec4 | 1910 | card->remove(card); |
a6052154 | 1911 | |
b0e26485 VK |
1912 | kfree(card->rtd); |
1913 | snd_card_free(card->snd_card); | |
1914 | return 0; | |
1915 | ||
1916 | } | |
1917 | ||
1918 | /* removes a socdev */ | |
1919 | static int soc_remove(struct platform_device *pdev) | |
1920 | { | |
1921 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
db2a4165 | 1922 | |
c5af3a2e | 1923 | snd_soc_unregister_card(card); |
db2a4165 FM |
1924 | return 0; |
1925 | } | |
1926 | ||
416356fc | 1927 | static int soc_poweroff(struct device *dev) |
51737470 | 1928 | { |
416356fc | 1929 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1930 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1931 | int i; | |
51737470 MB |
1932 | |
1933 | if (!card->instantiated) | |
416356fc | 1934 | return 0; |
51737470 MB |
1935 | |
1936 | /* Flush out pmdown_time work - we actually do want to run it | |
1937 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1938 | for (i = 0; i < card->num_rtd; i++) { |
1939 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1940 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1941 | } |
51737470 | 1942 | |
f0fba2ad | 1943 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1944 | |
1945 | return 0; | |
51737470 MB |
1946 | } |
1947 | ||
47145210 | 1948 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1949 | .suspend = soc_suspend, |
1950 | .resume = soc_resume, | |
1951 | .poweroff = soc_poweroff, | |
1952 | }; | |
1953 | ||
db2a4165 FM |
1954 | /* ASoC platform driver */ |
1955 | static struct platform_driver soc_driver = { | |
1956 | .driver = { | |
1957 | .name = "soc-audio", | |
8b45a209 | 1958 | .owner = THIS_MODULE, |
416356fc | 1959 | .pm = &soc_pm_ops, |
db2a4165 FM |
1960 | }, |
1961 | .probe = soc_probe, | |
1962 | .remove = soc_remove, | |
db2a4165 FM |
1963 | }; |
1964 | ||
1965 | /* create a new pcm */ | |
f0fba2ad LG |
1966 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1967 | { | |
1968 | struct snd_soc_codec *codec = rtd->codec; | |
1969 | struct snd_soc_platform *platform = rtd->platform; | |
1970 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1971 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1972 | struct snd_pcm *pcm; |
1973 | char new_name[64]; | |
1974 | int ret = 0, playback = 0, capture = 0; | |
1975 | ||
db2a4165 | 1976 | /* check client and interface hw capabilities */ |
40ca1142 | 1977 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1978 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1979 | |
f0fba2ad | 1980 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1981 | playback = 1; |
f0fba2ad | 1982 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1983 | capture = 1; |
1984 | ||
f0fba2ad LG |
1985 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1986 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1987 | num, playback, capture, &pcm); | |
db2a4165 | 1988 | if (ret < 0) { |
f0fba2ad | 1989 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1990 | return ret; |
1991 | } | |
1992 | ||
f0fba2ad | 1993 | rtd->pcm = pcm; |
db2a4165 | 1994 | pcm->private_data = rtd; |
f0fba2ad LG |
1995 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1996 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1997 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1998 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1999 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2000 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2001 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
2002 | |
2003 | if (playback) | |
2004 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2005 | ||
2006 | if (capture) | |
2007 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2008 | ||
f0fba2ad | 2009 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
2010 | if (ret < 0) { |
2011 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
2012 | return ret; |
2013 | } | |
2014 | ||
f0fba2ad | 2015 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2016 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2017 | cpu_dai->name); | |
2018 | return ret; | |
2019 | } | |
2020 | ||
096e49d5 MB |
2021 | /** |
2022 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2023 | * | |
2024 | * @codec: CODEC to query. | |
2025 | * @reg: Register to query. | |
2026 | * | |
2027 | * Boolean function indiciating if a CODEC register is volatile. | |
2028 | */ | |
181e055e MB |
2029 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, |
2030 | unsigned int reg) | |
096e49d5 | 2031 | { |
1500b7b5 DP |
2032 | if (codec->volatile_register) |
2033 | return codec->volatile_register(codec, reg); | |
096e49d5 MB |
2034 | else |
2035 | return 0; | |
2036 | } | |
2037 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2038 | ||
db2a4165 FM |
2039 | /** |
2040 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2041 | * @codec: audio codec | |
2042 | * @ops: AC97 bus operations | |
2043 | * @num: AC97 codec number | |
2044 | * | |
2045 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2046 | */ | |
2047 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2048 | struct snd_ac97_bus_ops *ops, int num) | |
2049 | { | |
2050 | mutex_lock(&codec->mutex); | |
2051 | ||
2052 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2053 | if (codec->ac97 == NULL) { | |
2054 | mutex_unlock(&codec->mutex); | |
2055 | return -ENOMEM; | |
2056 | } | |
2057 | ||
2058 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2059 | if (codec->ac97->bus == NULL) { | |
2060 | kfree(codec->ac97); | |
2061 | codec->ac97 = NULL; | |
2062 | mutex_unlock(&codec->mutex); | |
2063 | return -ENOMEM; | |
2064 | } | |
2065 | ||
2066 | codec->ac97->bus->ops = ops; | |
2067 | codec->ac97->num = num; | |
0562f788 MW |
2068 | |
2069 | /* | |
2070 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2071 | * device will be registered with the device subsystem later on. | |
2072 | */ | |
2073 | codec->ac97_created = 1; | |
2074 | ||
db2a4165 FM |
2075 | mutex_unlock(&codec->mutex); |
2076 | return 0; | |
2077 | } | |
2078 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2079 | ||
2080 | /** | |
2081 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2082 | * @codec: audio codec | |
2083 | * | |
2084 | * Frees AC97 codec device resources. | |
2085 | */ | |
2086 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2087 | { | |
2088 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2089 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2090 | soc_unregister_ac97_dai_link(codec); | |
2091 | #endif | |
db2a4165 FM |
2092 | kfree(codec->ac97->bus); |
2093 | kfree(codec->ac97); | |
2094 | codec->ac97 = NULL; | |
0562f788 | 2095 | codec->ac97_created = 0; |
db2a4165 FM |
2096 | mutex_unlock(&codec->mutex); |
2097 | } | |
2098 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2099 | ||
c3753707 MB |
2100 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2101 | { | |
2102 | unsigned int ret; | |
2103 | ||
c3acec26 | 2104 | ret = codec->read(codec, reg); |
c3753707 | 2105 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2106 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2107 | |
2108 | return ret; | |
2109 | } | |
2110 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2111 | ||
2112 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2113 | unsigned int reg, unsigned int val) | |
2114 | { | |
2115 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2116 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2117 | return codec->write(codec, reg, val); |
c3753707 MB |
2118 | } |
2119 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2120 | ||
db2a4165 FM |
2121 | /** |
2122 | * snd_soc_update_bits - update codec register bits | |
2123 | * @codec: audio codec | |
2124 | * @reg: codec register | |
2125 | * @mask: register mask | |
2126 | * @value: new value | |
2127 | * | |
2128 | * Writes new register value. | |
2129 | * | |
180c329d | 2130 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2131 | */ |
2132 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2133 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2134 | { |
2135 | int change; | |
46f5822f | 2136 | unsigned int old, new; |
180c329d TT |
2137 | int ret; |
2138 | ||
2139 | ret = snd_soc_read(codec, reg); | |
2140 | if (ret < 0) | |
2141 | return ret; | |
db2a4165 | 2142 | |
180c329d | 2143 | old = ret; |
db2a4165 FM |
2144 | new = (old & ~mask) | value; |
2145 | change = old != new; | |
180c329d TT |
2146 | if (change) { |
2147 | ret = snd_soc_write(codec, reg, new); | |
2148 | if (ret < 0) | |
2149 | return ret; | |
2150 | } | |
db2a4165 | 2151 | |
db2a4165 FM |
2152 | return change; |
2153 | } | |
2154 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2155 | ||
6c508c62 EN |
2156 | /** |
2157 | * snd_soc_update_bits_locked - update codec register bits | |
2158 | * @codec: audio codec | |
2159 | * @reg: codec register | |
2160 | * @mask: register mask | |
2161 | * @value: new value | |
2162 | * | |
2163 | * Writes new register value, and takes the codec mutex. | |
2164 | * | |
2165 | * Returns 1 for change else 0. | |
2166 | */ | |
dd1b3d53 MB |
2167 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2168 | unsigned short reg, unsigned int mask, | |
2169 | unsigned int value) | |
6c508c62 EN |
2170 | { |
2171 | int change; | |
2172 | ||
2173 | mutex_lock(&codec->mutex); | |
2174 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2175 | mutex_unlock(&codec->mutex); | |
2176 | ||
2177 | return change; | |
2178 | } | |
dd1b3d53 | 2179 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2180 | |
db2a4165 FM |
2181 | /** |
2182 | * snd_soc_test_bits - test register for change | |
2183 | * @codec: audio codec | |
2184 | * @reg: codec register | |
2185 | * @mask: register mask | |
2186 | * @value: new value | |
2187 | * | |
2188 | * Tests a register with a new value and checks if the new value is | |
2189 | * different from the old value. | |
2190 | * | |
2191 | * Returns 1 for change else 0. | |
2192 | */ | |
2193 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2194 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2195 | { |
2196 | int change; | |
46f5822f | 2197 | unsigned int old, new; |
db2a4165 | 2198 | |
db2a4165 FM |
2199 | old = snd_soc_read(codec, reg); |
2200 | new = (old & ~mask) | value; | |
2201 | change = old != new; | |
db2a4165 FM |
2202 | |
2203 | return change; | |
2204 | } | |
2205 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2206 | ||
db2a4165 FM |
2207 | /** |
2208 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2209 | * @substream: the pcm substream | |
2210 | * @hw: the hardware parameters | |
2211 | * | |
2212 | * Sets the substream runtime hardware parameters. | |
2213 | */ | |
2214 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2215 | const struct snd_pcm_hardware *hw) | |
2216 | { | |
2217 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2218 | runtime->hw.info = hw->info; | |
2219 | runtime->hw.formats = hw->formats; | |
2220 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2221 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2222 | runtime->hw.periods_min = hw->periods_min; | |
2223 | runtime->hw.periods_max = hw->periods_max; | |
2224 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2225 | runtime->hw.fifo_size = hw->fifo_size; | |
2226 | return 0; | |
2227 | } | |
2228 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2229 | ||
2230 | /** | |
2231 | * snd_soc_cnew - create new control | |
2232 | * @_template: control template | |
2233 | * @data: control private data | |
ac11a2b3 | 2234 | * @long_name: control long name |
db2a4165 FM |
2235 | * |
2236 | * Create a new mixer control from a template control. | |
2237 | * | |
2238 | * Returns 0 for success, else error. | |
2239 | */ | |
2240 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2241 | void *data, char *long_name) | |
2242 | { | |
2243 | struct snd_kcontrol_new template; | |
2244 | ||
2245 | memcpy(&template, _template, sizeof(template)); | |
2246 | if (long_name) | |
2247 | template.name = long_name; | |
db2a4165 FM |
2248 | template.index = 0; |
2249 | ||
2250 | return snd_ctl_new1(&template, data); | |
2251 | } | |
2252 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2253 | ||
3e8e1952 IM |
2254 | /** |
2255 | * snd_soc_add_controls - add an array of controls to a codec. | |
2256 | * Convienience function to add a list of controls. Many codecs were | |
2257 | * duplicating this code. | |
2258 | * | |
2259 | * @codec: codec to add controls to | |
2260 | * @controls: array of controls to add | |
2261 | * @num_controls: number of elements in the array | |
2262 | * | |
2263 | * Return 0 for success, else error. | |
2264 | */ | |
2265 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2266 | const struct snd_kcontrol_new *controls, int num_controls) | |
2267 | { | |
f0fba2ad | 2268 | struct snd_card *card = codec->card->snd_card; |
ead9b919 | 2269 | char prefixed_name[44], *name; |
3e8e1952 IM |
2270 | int err, i; |
2271 | ||
2272 | for (i = 0; i < num_controls; i++) { | |
2273 | const struct snd_kcontrol_new *control = &controls[i]; | |
ead9b919 JN |
2274 | if (codec->name_prefix) { |
2275 | snprintf(prefixed_name, sizeof(prefixed_name), "%s %s", | |
2276 | codec->name_prefix, control->name); | |
2277 | name = prefixed_name; | |
2278 | } else { | |
2279 | name = control->name; | |
2280 | } | |
2281 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, name)); | |
3e8e1952 | 2282 | if (err < 0) { |
082100dc | 2283 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
ead9b919 | 2284 | codec->name, name, err); |
3e8e1952 IM |
2285 | return err; |
2286 | } | |
2287 | } | |
2288 | ||
2289 | return 0; | |
2290 | } | |
2291 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2292 | ||
db2a4165 FM |
2293 | /** |
2294 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2295 | * @kcontrol: mixer control | |
2296 | * @uinfo: control element information | |
2297 | * | |
2298 | * Callback to provide information about a double enumerated | |
2299 | * mixer control. | |
2300 | * | |
2301 | * Returns 0 for success. | |
2302 | */ | |
2303 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2304 | struct snd_ctl_elem_info *uinfo) | |
2305 | { | |
2306 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2307 | ||
2308 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2309 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2310 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2311 | |
f8ba0b7b JS |
2312 | if (uinfo->value.enumerated.item > e->max - 1) |
2313 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2314 | strcpy(uinfo->value.enumerated.name, |
2315 | e->texts[uinfo->value.enumerated.item]); | |
2316 | return 0; | |
2317 | } | |
2318 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2319 | ||
2320 | /** | |
2321 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2322 | * @kcontrol: mixer control | |
ac11a2b3 | 2323 | * @ucontrol: control element information |
db2a4165 FM |
2324 | * |
2325 | * Callback to get the value of a double enumerated mixer. | |
2326 | * | |
2327 | * Returns 0 for success. | |
2328 | */ | |
2329 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2330 | struct snd_ctl_elem_value *ucontrol) | |
2331 | { | |
2332 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2333 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2334 | unsigned int val, bitmask; |
db2a4165 | 2335 | |
f8ba0b7b | 2336 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2337 | ; |
2338 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2339 | ucontrol->value.enumerated.item[0] |
2340 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2341 | if (e->shift_l != e->shift_r) |
2342 | ucontrol->value.enumerated.item[1] = | |
2343 | (val >> e->shift_r) & (bitmask - 1); | |
2344 | ||
2345 | return 0; | |
2346 | } | |
2347 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2348 | ||
2349 | /** | |
2350 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2351 | * @kcontrol: mixer control | |
ac11a2b3 | 2352 | * @ucontrol: control element information |
db2a4165 FM |
2353 | * |
2354 | * Callback to set the value of a double enumerated mixer. | |
2355 | * | |
2356 | * Returns 0 for success. | |
2357 | */ | |
2358 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2359 | struct snd_ctl_elem_value *ucontrol) | |
2360 | { | |
2361 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2362 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2363 | unsigned int val; |
2364 | unsigned int mask, bitmask; | |
db2a4165 | 2365 | |
f8ba0b7b | 2366 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2367 | ; |
f8ba0b7b | 2368 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2369 | return -EINVAL; |
2370 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2371 | mask = (bitmask - 1) << e->shift_l; | |
2372 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2373 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2374 | return -EINVAL; |
2375 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2376 | mask |= (bitmask - 1) << e->shift_r; | |
2377 | } | |
2378 | ||
6c508c62 | 2379 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2380 | } |
2381 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2382 | ||
2e72f8e3 PU |
2383 | /** |
2384 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2385 | * @kcontrol: mixer control | |
2386 | * @ucontrol: control element information | |
2387 | * | |
2388 | * Callback to get the value of a double semi enumerated mixer. | |
2389 | * | |
2390 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2391 | * used for handling bitfield coded enumeration for example. | |
2392 | * | |
2393 | * Returns 0 for success. | |
2394 | */ | |
2395 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2396 | struct snd_ctl_elem_value *ucontrol) | |
2397 | { | |
2398 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2399 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2400 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2401 | |
2402 | reg_val = snd_soc_read(codec, e->reg); | |
2403 | val = (reg_val >> e->shift_l) & e->mask; | |
2404 | for (mux = 0; mux < e->max; mux++) { | |
2405 | if (val == e->values[mux]) | |
2406 | break; | |
2407 | } | |
2408 | ucontrol->value.enumerated.item[0] = mux; | |
2409 | if (e->shift_l != e->shift_r) { | |
2410 | val = (reg_val >> e->shift_r) & e->mask; | |
2411 | for (mux = 0; mux < e->max; mux++) { | |
2412 | if (val == e->values[mux]) | |
2413 | break; | |
2414 | } | |
2415 | ucontrol->value.enumerated.item[1] = mux; | |
2416 | } | |
2417 | ||
2418 | return 0; | |
2419 | } | |
2420 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2421 | ||
2422 | /** | |
2423 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2424 | * @kcontrol: mixer control | |
2425 | * @ucontrol: control element information | |
2426 | * | |
2427 | * Callback to set the value of a double semi enumerated mixer. | |
2428 | * | |
2429 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2430 | * used for handling bitfield coded enumeration for example. | |
2431 | * | |
2432 | * Returns 0 for success. | |
2433 | */ | |
2434 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2435 | struct snd_ctl_elem_value *ucontrol) | |
2436 | { | |
2437 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2438 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2439 | unsigned int val; |
2440 | unsigned int mask; | |
2e72f8e3 PU |
2441 | |
2442 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2443 | return -EINVAL; | |
2444 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2445 | mask = e->mask << e->shift_l; | |
2446 | if (e->shift_l != e->shift_r) { | |
2447 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2448 | return -EINVAL; | |
2449 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2450 | mask |= e->mask << e->shift_r; | |
2451 | } | |
2452 | ||
6c508c62 | 2453 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2454 | } |
2455 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2456 | ||
db2a4165 FM |
2457 | /** |
2458 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2459 | * @kcontrol: mixer control | |
2460 | * @uinfo: control element information | |
2461 | * | |
2462 | * Callback to provide information about an external enumerated | |
2463 | * single mixer. | |
2464 | * | |
2465 | * Returns 0 for success. | |
2466 | */ | |
2467 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2468 | struct snd_ctl_elem_info *uinfo) | |
2469 | { | |
2470 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2471 | ||
2472 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2473 | uinfo->count = 1; | |
f8ba0b7b | 2474 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2475 | |
f8ba0b7b JS |
2476 | if (uinfo->value.enumerated.item > e->max - 1) |
2477 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2478 | strcpy(uinfo->value.enumerated.name, |
2479 | e->texts[uinfo->value.enumerated.item]); | |
2480 | return 0; | |
2481 | } | |
2482 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2483 | ||
2484 | /** | |
2485 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2486 | * @kcontrol: mixer control | |
2487 | * @uinfo: control element information | |
2488 | * | |
2489 | * Callback to provide information about a single external mixer control. | |
2490 | * | |
2491 | * Returns 0 for success. | |
2492 | */ | |
2493 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2494 | struct snd_ctl_elem_info *uinfo) | |
2495 | { | |
a7a4ac86 PZ |
2496 | int max = kcontrol->private_value; |
2497 | ||
fd5dfad9 | 2498 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2499 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2500 | else | |
2501 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2502 | |
db2a4165 FM |
2503 | uinfo->count = 1; |
2504 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2505 | uinfo->value.integer.max = max; |
db2a4165 FM |
2506 | return 0; |
2507 | } | |
2508 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2509 | ||
db2a4165 FM |
2510 | /** |
2511 | * snd_soc_info_volsw - single mixer info callback | |
2512 | * @kcontrol: mixer control | |
2513 | * @uinfo: control element information | |
2514 | * | |
2515 | * Callback to provide information about a single mixer control. | |
2516 | * | |
2517 | * Returns 0 for success. | |
2518 | */ | |
2519 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2520 | struct snd_ctl_elem_info *uinfo) | |
2521 | { | |
4eaa9819 JS |
2522 | struct soc_mixer_control *mc = |
2523 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2524 | int platform_max; |
762b8df7 | 2525 | unsigned int shift = mc->shift; |
815ecf8d | 2526 | unsigned int rshift = mc->rshift; |
db2a4165 | 2527 | |
d11bb4a9 PU |
2528 | if (!mc->platform_max) |
2529 | mc->platform_max = mc->max; | |
2530 | platform_max = mc->platform_max; | |
2531 | ||
2532 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2533 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2534 | else | |
2535 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2536 | ||
db2a4165 FM |
2537 | uinfo->count = shift == rshift ? 1 : 2; |
2538 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2539 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2540 | return 0; |
2541 | } | |
2542 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2543 | ||
2544 | /** | |
2545 | * snd_soc_get_volsw - single mixer get callback | |
2546 | * @kcontrol: mixer control | |
ac11a2b3 | 2547 | * @ucontrol: control element information |
db2a4165 FM |
2548 | * |
2549 | * Callback to get the value of a single mixer control. | |
2550 | * | |
2551 | * Returns 0 for success. | |
2552 | */ | |
2553 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2554 | struct snd_ctl_elem_value *ucontrol) | |
2555 | { | |
4eaa9819 JS |
2556 | struct soc_mixer_control *mc = |
2557 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2558 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2559 | unsigned int reg = mc->reg; |
2560 | unsigned int shift = mc->shift; | |
2561 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2562 | int max = mc->max; |
815ecf8d JS |
2563 | unsigned int mask = (1 << fls(max)) - 1; |
2564 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2565 | |
2566 | ucontrol->value.integer.value[0] = | |
2567 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2568 | if (shift != rshift) | |
2569 | ucontrol->value.integer.value[1] = | |
2570 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2571 | if (invert) { | |
2572 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2573 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2574 | if (shift != rshift) |
2575 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2576 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2577 | } |
2578 | ||
2579 | return 0; | |
2580 | } | |
2581 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2582 | ||
2583 | /** | |
2584 | * snd_soc_put_volsw - single mixer put callback | |
2585 | * @kcontrol: mixer control | |
ac11a2b3 | 2586 | * @ucontrol: control element information |
db2a4165 FM |
2587 | * |
2588 | * Callback to set the value of a single mixer control. | |
2589 | * | |
2590 | * Returns 0 for success. | |
2591 | */ | |
2592 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2593 | struct snd_ctl_elem_value *ucontrol) | |
2594 | { | |
4eaa9819 JS |
2595 | struct soc_mixer_control *mc = |
2596 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2597 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2598 | unsigned int reg = mc->reg; |
2599 | unsigned int shift = mc->shift; | |
2600 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2601 | int max = mc->max; |
815ecf8d JS |
2602 | unsigned int mask = (1 << fls(max)) - 1; |
2603 | unsigned int invert = mc->invert; | |
46f5822f | 2604 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2605 | |
2606 | val = (ucontrol->value.integer.value[0] & mask); | |
2607 | if (invert) | |
a7a4ac86 | 2608 | val = max - val; |
db2a4165 FM |
2609 | val_mask = mask << shift; |
2610 | val = val << shift; | |
2611 | if (shift != rshift) { | |
2612 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2613 | if (invert) | |
a7a4ac86 | 2614 | val2 = max - val2; |
db2a4165 FM |
2615 | val_mask |= mask << rshift; |
2616 | val |= val2 << rshift; | |
2617 | } | |
6c508c62 | 2618 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2619 | } |
2620 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2621 | ||
2622 | /** | |
2623 | * snd_soc_info_volsw_2r - double mixer info callback | |
2624 | * @kcontrol: mixer control | |
2625 | * @uinfo: control element information | |
2626 | * | |
2627 | * Callback to provide information about a double mixer control that | |
2628 | * spans 2 codec registers. | |
2629 | * | |
2630 | * Returns 0 for success. | |
2631 | */ | |
2632 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2633 | struct snd_ctl_elem_info *uinfo) | |
2634 | { | |
4eaa9819 JS |
2635 | struct soc_mixer_control *mc = |
2636 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2637 | int platform_max; |
a7a4ac86 | 2638 | |
d11bb4a9 PU |
2639 | if (!mc->platform_max) |
2640 | mc->platform_max = mc->max; | |
2641 | platform_max = mc->platform_max; | |
2642 | ||
2643 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2644 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2645 | else | |
2646 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2647 | |
db2a4165 FM |
2648 | uinfo->count = 2; |
2649 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2650 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2651 | return 0; |
2652 | } | |
2653 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2654 | ||
2655 | /** | |
2656 | * snd_soc_get_volsw_2r - double mixer get callback | |
2657 | * @kcontrol: mixer control | |
ac11a2b3 | 2658 | * @ucontrol: control element information |
db2a4165 FM |
2659 | * |
2660 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2661 | * | |
2662 | * Returns 0 for success. | |
2663 | */ | |
2664 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2665 | struct snd_ctl_elem_value *ucontrol) | |
2666 | { | |
4eaa9819 JS |
2667 | struct soc_mixer_control *mc = |
2668 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2669 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2670 | unsigned int reg = mc->reg; |
2671 | unsigned int reg2 = mc->rreg; | |
2672 | unsigned int shift = mc->shift; | |
4eaa9819 | 2673 | int max = mc->max; |
46f5822f | 2674 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2675 | unsigned int invert = mc->invert; |
db2a4165 FM |
2676 | |
2677 | ucontrol->value.integer.value[0] = | |
2678 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2679 | ucontrol->value.integer.value[1] = | |
2680 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2681 | if (invert) { | |
2682 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2683 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2684 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2685 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2686 | } |
2687 | ||
2688 | return 0; | |
2689 | } | |
2690 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2691 | ||
2692 | /** | |
2693 | * snd_soc_put_volsw_2r - double mixer set callback | |
2694 | * @kcontrol: mixer control | |
ac11a2b3 | 2695 | * @ucontrol: control element information |
db2a4165 FM |
2696 | * |
2697 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2698 | * | |
2699 | * Returns 0 for success. | |
2700 | */ | |
2701 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2702 | struct snd_ctl_elem_value *ucontrol) | |
2703 | { | |
4eaa9819 JS |
2704 | struct soc_mixer_control *mc = |
2705 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2706 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2707 | unsigned int reg = mc->reg; |
2708 | unsigned int reg2 = mc->rreg; | |
2709 | unsigned int shift = mc->shift; | |
4eaa9819 | 2710 | int max = mc->max; |
815ecf8d JS |
2711 | unsigned int mask = (1 << fls(max)) - 1; |
2712 | unsigned int invert = mc->invert; | |
db2a4165 | 2713 | int err; |
46f5822f | 2714 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2715 | |
2716 | val_mask = mask << shift; | |
2717 | val = (ucontrol->value.integer.value[0] & mask); | |
2718 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2719 | ||
2720 | if (invert) { | |
a7a4ac86 PZ |
2721 | val = max - val; |
2722 | val2 = max - val2; | |
db2a4165 FM |
2723 | } |
2724 | ||
2725 | val = val << shift; | |
2726 | val2 = val2 << shift; | |
2727 | ||
6c508c62 | 2728 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2729 | if (err < 0) |
db2a4165 FM |
2730 | return err; |
2731 | ||
6c508c62 | 2732 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2733 | return err; |
2734 | } | |
2735 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2736 | ||
e13ac2e9 MB |
2737 | /** |
2738 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2739 | * @kcontrol: mixer control | |
2740 | * @uinfo: control element information | |
2741 | * | |
2742 | * Callback to provide information about a signed mixer control. | |
2743 | * | |
2744 | * Returns 0 for success. | |
2745 | */ | |
2746 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2747 | struct snd_ctl_elem_info *uinfo) | |
2748 | { | |
4eaa9819 JS |
2749 | struct soc_mixer_control *mc = |
2750 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2751 | int platform_max; |
4eaa9819 | 2752 | int min = mc->min; |
e13ac2e9 | 2753 | |
d11bb4a9 PU |
2754 | if (!mc->platform_max) |
2755 | mc->platform_max = mc->max; | |
2756 | platform_max = mc->platform_max; | |
2757 | ||
e13ac2e9 MB |
2758 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2759 | uinfo->count = 2; | |
2760 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2761 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2762 | return 0; |
2763 | } | |
2764 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2765 | ||
2766 | /** | |
2767 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2768 | * @kcontrol: mixer control | |
ac11a2b3 | 2769 | * @ucontrol: control element information |
e13ac2e9 MB |
2770 | * |
2771 | * Callback to get the value of a signed mixer control. | |
2772 | * | |
2773 | * Returns 0 for success. | |
2774 | */ | |
2775 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2776 | struct snd_ctl_elem_value *ucontrol) | |
2777 | { | |
4eaa9819 JS |
2778 | struct soc_mixer_control *mc = |
2779 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2780 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2781 | unsigned int reg = mc->reg; |
4eaa9819 | 2782 | int min = mc->min; |
e13ac2e9 MB |
2783 | int val = snd_soc_read(codec, reg); |
2784 | ||
2785 | ucontrol->value.integer.value[0] = | |
2786 | ((signed char)(val & 0xff))-min; | |
2787 | ucontrol->value.integer.value[1] = | |
2788 | ((signed char)((val >> 8) & 0xff))-min; | |
2789 | return 0; | |
2790 | } | |
2791 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2792 | ||
2793 | /** | |
2794 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2795 | * @kcontrol: mixer control | |
ac11a2b3 | 2796 | * @ucontrol: control element information |
e13ac2e9 MB |
2797 | * |
2798 | * Callback to set the value of a signed mixer control. | |
2799 | * | |
2800 | * Returns 0 for success. | |
2801 | */ | |
2802 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2803 | struct snd_ctl_elem_value *ucontrol) | |
2804 | { | |
4eaa9819 JS |
2805 | struct soc_mixer_control *mc = |
2806 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2807 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2808 | unsigned int reg = mc->reg; |
4eaa9819 | 2809 | int min = mc->min; |
46f5822f | 2810 | unsigned int val; |
e13ac2e9 MB |
2811 | |
2812 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2813 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2814 | ||
6c508c62 | 2815 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2816 | } |
2817 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2818 | ||
637d3847 PU |
2819 | /** |
2820 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2821 | * | |
2822 | * @codec: where to look for the control | |
2823 | * @name: Name of the control | |
2824 | * @max: new maximum limit | |
2825 | * | |
2826 | * Return 0 for success, else error. | |
2827 | */ | |
2828 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2829 | const char *name, int max) | |
2830 | { | |
f0fba2ad | 2831 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2832 | struct snd_kcontrol *kctl; |
2833 | struct soc_mixer_control *mc; | |
2834 | int found = 0; | |
2835 | int ret = -EINVAL; | |
2836 | ||
2837 | /* Sanity check for name and max */ | |
2838 | if (unlikely(!name || max <= 0)) | |
2839 | return -EINVAL; | |
2840 | ||
2841 | list_for_each_entry(kctl, &card->controls, list) { | |
2842 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2843 | found = 1; | |
2844 | break; | |
2845 | } | |
2846 | } | |
2847 | if (found) { | |
2848 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2849 | if (max <= mc->max) { | |
d11bb4a9 | 2850 | mc->platform_max = max; |
637d3847 PU |
2851 | ret = 0; |
2852 | } | |
2853 | } | |
2854 | return ret; | |
2855 | } | |
2856 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2857 | ||
b6f4bb38 | 2858 | /** |
2859 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2860 | * mixer info callback | |
2861 | * @kcontrol: mixer control | |
2862 | * @uinfo: control element information | |
2863 | * | |
2864 | * Returns 0 for success. | |
2865 | */ | |
2866 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2867 | struct snd_ctl_elem_info *uinfo) | |
2868 | { | |
2869 | struct soc_mixer_control *mc = | |
2870 | (struct soc_mixer_control *)kcontrol->private_value; | |
2871 | int max = mc->max; | |
2872 | int min = mc->min; | |
2873 | ||
2874 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2875 | uinfo->count = 2; | |
2876 | uinfo->value.integer.min = 0; | |
2877 | uinfo->value.integer.max = max-min; | |
2878 | ||
2879 | return 0; | |
2880 | } | |
2881 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2882 | ||
2883 | /** | |
2884 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2885 | * mixer get callback | |
2886 | * @kcontrol: mixer control | |
2887 | * @uinfo: control element information | |
2888 | * | |
2889 | * Returns 0 for success. | |
2890 | */ | |
2891 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2892 | struct snd_ctl_elem_value *ucontrol) | |
2893 | { | |
2894 | struct soc_mixer_control *mc = | |
2895 | (struct soc_mixer_control *)kcontrol->private_value; | |
2896 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2897 | unsigned int mask = (1<<mc->shift)-1; | |
2898 | int min = mc->min; | |
2899 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2900 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2901 | ||
20630c7f SL |
2902 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2903 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2904 | return 0; |
2905 | } | |
2906 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2907 | ||
2908 | /** | |
2909 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2910 | * mixer put callback | |
2911 | * @kcontrol: mixer control | |
2912 | * @uinfo: control element information | |
2913 | * | |
2914 | * Returns 0 for success. | |
2915 | */ | |
2916 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2917 | struct snd_ctl_elem_value *ucontrol) | |
2918 | { | |
2919 | struct soc_mixer_control *mc = | |
2920 | (struct soc_mixer_control *)kcontrol->private_value; | |
2921 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2922 | unsigned int mask = (1<<mc->shift)-1; | |
2923 | int min = mc->min; | |
2924 | int ret; | |
2925 | unsigned int val, valr, oval, ovalr; | |
2926 | ||
2927 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2928 | val &= mask; | |
2929 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2930 | valr &= mask; | |
2931 | ||
2932 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2933 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2934 | ||
2935 | ret = 0; | |
2936 | if (oval != val) { | |
2937 | ret = snd_soc_write(codec, mc->reg, val); | |
2938 | if (ret < 0) | |
f1df5aec | 2939 | return ret; |
b6f4bb38 | 2940 | } |
2941 | if (ovalr != valr) { | |
2942 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2943 | if (ret < 0) | |
f1df5aec | 2944 | return ret; |
b6f4bb38 | 2945 | } |
2946 | ||
2947 | return 0; | |
2948 | } | |
2949 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2950 | ||
8c6529db LG |
2951 | /** |
2952 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2953 | * @dai: DAI | |
2954 | * @clk_id: DAI specific clock ID | |
2955 | * @freq: new clock frequency in Hz | |
2956 | * @dir: new clock direction - input/output. | |
2957 | * | |
2958 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2959 | */ | |
2960 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2961 | unsigned int freq, int dir) | |
2962 | { | |
f0fba2ad LG |
2963 | if (dai->driver && dai->driver->ops->set_sysclk) |
2964 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2965 | else |
2966 | return -EINVAL; | |
2967 | } | |
2968 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2969 | ||
2970 | /** | |
2971 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2972 | * @dai: DAI | |
ac11a2b3 | 2973 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2974 | * @div: new clock divisor. |
2975 | * | |
2976 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2977 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2978 | * and frame clocks as low as possible to save system power. | |
2979 | */ | |
2980 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2981 | int div_id, int div) | |
2982 | { | |
f0fba2ad LG |
2983 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2984 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2985 | else |
2986 | return -EINVAL; | |
2987 | } | |
2988 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2989 | ||
2990 | /** | |
2991 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2992 | * @dai: DAI | |
2993 | * @pll_id: DAI specific PLL ID | |
85488037 | 2994 | * @source: DAI specific source for the PLL |
8c6529db LG |
2995 | * @freq_in: PLL input clock frequency in Hz |
2996 | * @freq_out: requested PLL output clock frequency in Hz | |
2997 | * | |
2998 | * Configures and enables PLL to generate output clock based on input clock. | |
2999 | */ | |
85488037 MB |
3000 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3001 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3002 | { |
f0fba2ad LG |
3003 | if (dai->driver && dai->driver->ops->set_pll) |
3004 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3005 | freq_in, freq_out); |
8c6529db LG |
3006 | else |
3007 | return -EINVAL; | |
3008 | } | |
3009 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3010 | ||
3011 | /** | |
3012 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3013 | * @dai: DAI | |
8c6529db LG |
3014 | * @fmt: SND_SOC_DAIFMT_ format value. |
3015 | * | |
3016 | * Configures the DAI hardware format and clocking. | |
3017 | */ | |
3018 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3019 | { | |
f0fba2ad LG |
3020 | if (dai->driver && dai->driver->ops->set_fmt) |
3021 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3022 | else |
3023 | return -EINVAL; | |
3024 | } | |
3025 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3026 | ||
3027 | /** | |
3028 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3029 | * @dai: DAI | |
a5479e38 DR |
3030 | * @tx_mask: bitmask representing active TX slots. |
3031 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3032 | * @slots: Number of slots in use. |
a5479e38 | 3033 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3034 | * |
3035 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3036 | * specific. | |
3037 | */ | |
3038 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3039 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3040 | { |
f0fba2ad LG |
3041 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3042 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3043 | slots, slot_width); |
8c6529db LG |
3044 | else |
3045 | return -EINVAL; | |
3046 | } | |
3047 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3048 | ||
472df3cb BS |
3049 | /** |
3050 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3051 | * @dai: DAI | |
3052 | * @tx_num: how many TX channels | |
3053 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3054 | * 0~num-1 uses | |
3055 | * @rx_num: how many RX channels | |
3056 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3057 | * 0~num-1 uses | |
3058 | * | |
3059 | * configure the relationship between channel number and TDM slot number. | |
3060 | */ | |
3061 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3062 | unsigned int tx_num, unsigned int *tx_slot, | |
3063 | unsigned int rx_num, unsigned int *rx_slot) | |
3064 | { | |
f0fba2ad LG |
3065 | if (dai->driver && dai->driver->ops->set_channel_map) |
3066 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3067 | rx_num, rx_slot); |
3068 | else | |
3069 | return -EINVAL; | |
3070 | } | |
3071 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3072 | ||
8c6529db LG |
3073 | /** |
3074 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3075 | * @dai: DAI | |
3076 | * @tristate: tristate enable | |
3077 | * | |
3078 | * Tristates the DAI so that others can use it. | |
3079 | */ | |
3080 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3081 | { | |
f0fba2ad LG |
3082 | if (dai->driver && dai->driver->ops->set_tristate) |
3083 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3084 | else |
3085 | return -EINVAL; | |
3086 | } | |
3087 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3088 | ||
3089 | /** | |
3090 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3091 | * @dai: DAI | |
3092 | * @mute: mute enable | |
3093 | * | |
3094 | * Mutes the DAI DAC. | |
3095 | */ | |
3096 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3097 | { | |
f0fba2ad LG |
3098 | if (dai->driver && dai->driver->ops->digital_mute) |
3099 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3100 | else |
3101 | return -EINVAL; | |
3102 | } | |
3103 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3104 | ||
c5af3a2e MB |
3105 | /** |
3106 | * snd_soc_register_card - Register a card with the ASoC core | |
3107 | * | |
ac11a2b3 | 3108 | * @card: Card to register |
c5af3a2e | 3109 | * |
c5af3a2e | 3110 | */ |
70a7ca34 | 3111 | int snd_soc_register_card(struct snd_soc_card *card) |
c5af3a2e | 3112 | { |
f0fba2ad LG |
3113 | int i; |
3114 | ||
c5af3a2e MB |
3115 | if (!card->name || !card->dev) |
3116 | return -EINVAL; | |
3117 | ||
150dd2f8 VK |
3118 | soc_init_card_debugfs(card); |
3119 | ||
2eea392d JN |
3120 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3121 | (card->num_links + card->num_aux_devs), | |
3122 | GFP_KERNEL); | |
f0fba2ad LG |
3123 | if (card->rtd == NULL) |
3124 | return -ENOMEM; | |
2eea392d | 3125 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3126 | |
3127 | for (i = 0; i < card->num_links; i++) | |
3128 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3129 | ||
c5af3a2e MB |
3130 | INIT_LIST_HEAD(&card->list); |
3131 | card->instantiated = 0; | |
f0fba2ad | 3132 | mutex_init(&card->mutex); |
c5af3a2e MB |
3133 | |
3134 | mutex_lock(&client_mutex); | |
3135 | list_add(&card->list, &card_list); | |
435c5e25 | 3136 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3137 | mutex_unlock(&client_mutex); |
3138 | ||
3139 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3140 | ||
3141 | return 0; | |
3142 | } | |
70a7ca34 | 3143 | EXPORT_SYMBOL_GPL(snd_soc_register_card); |
c5af3a2e MB |
3144 | |
3145 | /** | |
3146 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3147 | * | |
ac11a2b3 | 3148 | * @card: Card to unregister |
c5af3a2e | 3149 | * |
c5af3a2e | 3150 | */ |
70a7ca34 | 3151 | int snd_soc_unregister_card(struct snd_soc_card *card) |
c5af3a2e | 3152 | { |
b0e26485 VK |
3153 | if (card->instantiated) |
3154 | soc_cleanup_card_resources(card); | |
c5af3a2e MB |
3155 | mutex_lock(&client_mutex); |
3156 | list_del(&card->list); | |
3157 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3158 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3159 | ||
3160 | return 0; | |
3161 | } | |
70a7ca34 | 3162 | EXPORT_SYMBOL_GPL(snd_soc_unregister_card); |
c5af3a2e | 3163 | |
f0fba2ad LG |
3164 | /* |
3165 | * Simplify DAI link configuration by removing ".-1" from device names | |
3166 | * and sanitizing names. | |
3167 | */ | |
0b9a214a | 3168 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3169 | { |
3170 | char *found, name[NAME_SIZE]; | |
3171 | int id1, id2; | |
3172 | ||
3173 | if (dev_name(dev) == NULL) | |
3174 | return NULL; | |
3175 | ||
58818a77 | 3176 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3177 | |
3178 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3179 | found = strstr(name, dev->driver->name); | |
3180 | if (found) { | |
3181 | /* get ID */ | |
3182 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3183 | ||
3184 | /* discard ID from name if ID == -1 */ | |
3185 | if (*id == -1) | |
3186 | found[strlen(dev->driver->name)] = '\0'; | |
3187 | } | |
3188 | ||
3189 | } else { | |
3190 | /* I2C component devices are named "bus-addr" */ | |
3191 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3192 | char tmp[NAME_SIZE]; | |
3193 | ||
3194 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3195 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3196 | |
3197 | /* sanitize component name for DAI link creation */ | |
3198 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3199 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3200 | } else |
3201 | *id = 0; | |
3202 | } | |
3203 | ||
3204 | return kstrdup(name, GFP_KERNEL); | |
3205 | } | |
3206 | ||
3207 | /* | |
3208 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3209 | * any ".-1" and using the DAI name (instead of device name). | |
3210 | */ | |
3211 | static inline char *fmt_multiple_name(struct device *dev, | |
3212 | struct snd_soc_dai_driver *dai_drv) | |
3213 | { | |
3214 | if (dai_drv->name == NULL) { | |
3215 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3216 | dev_name(dev)); | |
3217 | return NULL; | |
3218 | } | |
3219 | ||
3220 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3221 | } | |
3222 | ||
9115171a MB |
3223 | /** |
3224 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3225 | * | |
ac11a2b3 | 3226 | * @dai: DAI to register |
9115171a | 3227 | */ |
f0fba2ad LG |
3228 | int snd_soc_register_dai(struct device *dev, |
3229 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3230 | { |
f0fba2ad LG |
3231 | struct snd_soc_dai *dai; |
3232 | ||
3233 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3234 | |
f0fba2ad LG |
3235 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3236 | if (dai == NULL) | |
3237 | return -ENOMEM; | |
9115171a | 3238 | |
f0fba2ad LG |
3239 | /* create DAI component name */ |
3240 | dai->name = fmt_single_name(dev, &dai->id); | |
3241 | if (dai->name == NULL) { | |
3242 | kfree(dai); | |
3243 | return -ENOMEM; | |
3244 | } | |
6335d055 | 3245 | |
f0fba2ad LG |
3246 | dai->dev = dev; |
3247 | dai->driver = dai_drv; | |
3248 | if (!dai->driver->ops) | |
3249 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3250 | |
3251 | mutex_lock(&client_mutex); | |
3252 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3253 | snd_soc_instantiate_cards(); |
9115171a MB |
3254 | mutex_unlock(&client_mutex); |
3255 | ||
3256 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3257 | ||
3258 | return 0; | |
3259 | } | |
3260 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3261 | ||
3262 | /** | |
3263 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3264 | * | |
ac11a2b3 | 3265 | * @dai: DAI to unregister |
9115171a | 3266 | */ |
f0fba2ad | 3267 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3268 | { |
f0fba2ad LG |
3269 | struct snd_soc_dai *dai; |
3270 | ||
3271 | list_for_each_entry(dai, &dai_list, list) { | |
3272 | if (dev == dai->dev) | |
3273 | goto found; | |
3274 | } | |
3275 | return; | |
3276 | ||
3277 | found: | |
9115171a MB |
3278 | mutex_lock(&client_mutex); |
3279 | list_del(&dai->list); | |
3280 | mutex_unlock(&client_mutex); | |
3281 | ||
3282 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3283 | kfree(dai->name); |
3284 | kfree(dai); | |
9115171a MB |
3285 | } |
3286 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3287 | ||
3288 | /** | |
3289 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3290 | * | |
ac11a2b3 MB |
3291 | * @dai: Array of DAIs to register |
3292 | * @count: Number of DAIs | |
9115171a | 3293 | */ |
f0fba2ad LG |
3294 | int snd_soc_register_dais(struct device *dev, |
3295 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3296 | { |
f0fba2ad LG |
3297 | struct snd_soc_dai *dai; |
3298 | int i, ret = 0; | |
3299 | ||
720ffa4c | 3300 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3301 | |
3302 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3303 | |
3304 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3305 | if (dai == NULL) { |
3306 | ret = -ENOMEM; | |
3307 | goto err; | |
3308 | } | |
f0fba2ad LG |
3309 | |
3310 | /* create DAI component name */ | |
3311 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3312 | if (dai->name == NULL) { | |
3313 | kfree(dai); | |
3314 | ret = -EINVAL; | |
9115171a | 3315 | goto err; |
f0fba2ad LG |
3316 | } |
3317 | ||
3318 | dai->dev = dev; | |
f0fba2ad | 3319 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3320 | if (dai->driver->id) |
3321 | dai->id = dai->driver->id; | |
3322 | else | |
3323 | dai->id = i; | |
f0fba2ad LG |
3324 | if (!dai->driver->ops) |
3325 | dai->driver->ops = &null_dai_ops; | |
3326 | ||
3327 | mutex_lock(&client_mutex); | |
3328 | list_add(&dai->list, &dai_list); | |
3329 | mutex_unlock(&client_mutex); | |
3330 | ||
3331 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3332 | } |
3333 | ||
1dcb4f38 | 3334 | mutex_lock(&client_mutex); |
f0fba2ad | 3335 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3336 | mutex_unlock(&client_mutex); |
9115171a MB |
3337 | return 0; |
3338 | ||
3339 | err: | |
3340 | for (i--; i >= 0; i--) | |
f0fba2ad | 3341 | snd_soc_unregister_dai(dev); |
9115171a MB |
3342 | |
3343 | return ret; | |
3344 | } | |
3345 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3346 | ||
3347 | /** | |
3348 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3349 | * | |
ac11a2b3 MB |
3350 | * @dai: Array of DAIs to unregister |
3351 | * @count: Number of DAIs | |
9115171a | 3352 | */ |
f0fba2ad | 3353 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3354 | { |
3355 | int i; | |
3356 | ||
3357 | for (i = 0; i < count; i++) | |
f0fba2ad | 3358 | snd_soc_unregister_dai(dev); |
9115171a MB |
3359 | } |
3360 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3361 | ||
12a48a8c MB |
3362 | /** |
3363 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3364 | * | |
ac11a2b3 | 3365 | * @platform: platform to register |
12a48a8c | 3366 | */ |
f0fba2ad LG |
3367 | int snd_soc_register_platform(struct device *dev, |
3368 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3369 | { |
f0fba2ad LG |
3370 | struct snd_soc_platform *platform; |
3371 | ||
3372 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3373 | ||
3374 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3375 | if (platform == NULL) | |
3376 | return -ENOMEM; | |
3377 | ||
3378 | /* create platform component name */ | |
3379 | platform->name = fmt_single_name(dev, &platform->id); | |
3380 | if (platform->name == NULL) { | |
3381 | kfree(platform); | |
3382 | return -ENOMEM; | |
3383 | } | |
12a48a8c | 3384 | |
f0fba2ad LG |
3385 | platform->dev = dev; |
3386 | platform->driver = platform_drv; | |
12a48a8c MB |
3387 | |
3388 | mutex_lock(&client_mutex); | |
3389 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3390 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3391 | mutex_unlock(&client_mutex); |
3392 | ||
3393 | pr_debug("Registered platform '%s'\n", platform->name); | |
3394 | ||
3395 | return 0; | |
3396 | } | |
3397 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3398 | ||
3399 | /** | |
3400 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3401 | * | |
ac11a2b3 | 3402 | * @platform: platform to unregister |
12a48a8c | 3403 | */ |
f0fba2ad | 3404 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3405 | { |
f0fba2ad LG |
3406 | struct snd_soc_platform *platform; |
3407 | ||
3408 | list_for_each_entry(platform, &platform_list, list) { | |
3409 | if (dev == platform->dev) | |
3410 | goto found; | |
3411 | } | |
3412 | return; | |
3413 | ||
3414 | found: | |
12a48a8c MB |
3415 | mutex_lock(&client_mutex); |
3416 | list_del(&platform->list); | |
3417 | mutex_unlock(&client_mutex); | |
3418 | ||
3419 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3420 | kfree(platform->name); |
3421 | kfree(platform); | |
12a48a8c MB |
3422 | } |
3423 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3424 | ||
151ab22c MB |
3425 | static u64 codec_format_map[] = { |
3426 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3427 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3428 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3429 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3430 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3431 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3432 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3433 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3434 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3435 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3436 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3437 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3438 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3439 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3440 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3441 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3442 | }; | |
3443 | ||
3444 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3445 | * the endianness of the data but we're using the CPU format | |
3446 | * definitions which do need to include endianness so we ensure that | |
3447 | * codec DAIs always have both big and little endian variants set. | |
3448 | */ | |
3449 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3450 | { | |
3451 | int i; | |
3452 | ||
3453 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3454 | if (stream->formats & codec_format_map[i]) | |
3455 | stream->formats |= codec_format_map[i]; | |
3456 | } | |
3457 | ||
0d0cf00a MB |
3458 | /** |
3459 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3460 | * | |
ac11a2b3 | 3461 | * @codec: codec to register |
0d0cf00a | 3462 | */ |
f0fba2ad | 3463 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3464 | const struct snd_soc_codec_driver *codec_drv, |
3465 | struct snd_soc_dai_driver *dai_drv, | |
3466 | int num_dai) | |
0d0cf00a | 3467 | { |
3335ddca | 3468 | size_t reg_size; |
f0fba2ad LG |
3469 | struct snd_soc_codec *codec; |
3470 | int ret, i; | |
151ab22c | 3471 | |
f0fba2ad LG |
3472 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3473 | ||
3474 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3475 | if (codec == NULL) | |
3476 | return -ENOMEM; | |
0d0cf00a | 3477 | |
f0fba2ad LG |
3478 | /* create CODEC component name */ |
3479 | codec->name = fmt_single_name(dev, &codec->id); | |
3480 | if (codec->name == NULL) { | |
3481 | kfree(codec); | |
3482 | return -ENOMEM; | |
3483 | } | |
3484 | ||
23bbce34 DP |
3485 | if (codec_drv->compress_type) |
3486 | codec->compress_type = codec_drv->compress_type; | |
3487 | else | |
3488 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3489 | ||
c3acec26 MB |
3490 | codec->write = codec_drv->write; |
3491 | codec->read = codec_drv->read; | |
1500b7b5 DP |
3492 | codec->volatile_register = codec_drv->volatile_register; |
3493 | codec->readable_register = codec_drv->readable_register; | |
ce6120cc LG |
3494 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3495 | codec->dapm.dev = dev; | |
3496 | codec->dapm.codec = codec; | |
474b62d6 | 3497 | codec->dapm.seq_notifier = codec_drv->seq_notifier; |
7a30a3db DP |
3498 | codec->dev = dev; |
3499 | codec->driver = codec_drv; | |
3500 | codec->num_dai = num_dai; | |
3501 | mutex_init(&codec->mutex); | |
ce6120cc | 3502 | |
f0fba2ad LG |
3503 | /* allocate CODEC register cache */ |
3504 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca | 3505 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
aea170a0 | 3506 | codec->reg_size = reg_size; |
3335ddca DP |
3507 | /* it is necessary to make a copy of the default register cache |
3508 | * because in the case of using a compression type that requires | |
3509 | * the default register cache to be marked as __devinitconst the | |
3510 | * kernel might have freed the array by the time we initialize | |
3511 | * the cache. | |
3512 | */ | |
2aa86323 DP |
3513 | if (codec_drv->reg_cache_default) { |
3514 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3515 | reg_size, GFP_KERNEL); | |
3516 | if (!codec->reg_def_copy) { | |
3517 | ret = -ENOMEM; | |
3518 | goto fail; | |
3519 | } | |
f0fba2ad | 3520 | } |
151ab22c MB |
3521 | } |
3522 | ||
1500b7b5 DP |
3523 | if (codec_drv->reg_access_size && codec_drv->reg_access_default) { |
3524 | if (!codec->volatile_register) | |
3525 | codec->volatile_register = snd_soc_default_volatile_register; | |
3526 | if (!codec->readable_register) | |
3527 | codec->readable_register = snd_soc_default_readable_register; | |
3528 | } | |
3529 | ||
f0fba2ad LG |
3530 | for (i = 0; i < num_dai; i++) { |
3531 | fixup_codec_formats(&dai_drv[i].playback); | |
3532 | fixup_codec_formats(&dai_drv[i].capture); | |
3533 | } | |
3534 | ||
26b01ccd MB |
3535 | /* register any DAIs */ |
3536 | if (num_dai) { | |
3537 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3538 | if (ret < 0) | |
fdf0f54d | 3539 | goto fail; |
26b01ccd | 3540 | } |
f0fba2ad | 3541 | |
0d0cf00a MB |
3542 | mutex_lock(&client_mutex); |
3543 | list_add(&codec->list, &codec_list); | |
3544 | snd_soc_instantiate_cards(); | |
3545 | mutex_unlock(&client_mutex); | |
3546 | ||
3547 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3548 | return 0; |
f0fba2ad | 3549 | |
fdf0f54d | 3550 | fail: |
3335ddca DP |
3551 | kfree(codec->reg_def_copy); |
3552 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3553 | kfree(codec->name); |
3554 | kfree(codec); | |
3555 | return ret; | |
0d0cf00a MB |
3556 | } |
3557 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3558 | ||
3559 | /** | |
3560 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3561 | * | |
ac11a2b3 | 3562 | * @codec: codec to unregister |
0d0cf00a | 3563 | */ |
f0fba2ad | 3564 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3565 | { |
f0fba2ad LG |
3566 | struct snd_soc_codec *codec; |
3567 | int i; | |
3568 | ||
3569 | list_for_each_entry(codec, &codec_list, list) { | |
3570 | if (dev == codec->dev) | |
3571 | goto found; | |
3572 | } | |
3573 | return; | |
3574 | ||
3575 | found: | |
26b01ccd MB |
3576 | if (codec->num_dai) |
3577 | for (i = 0; i < codec->num_dai; i++) | |
3578 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3579 | |
0d0cf00a MB |
3580 | mutex_lock(&client_mutex); |
3581 | list_del(&codec->list); | |
3582 | mutex_unlock(&client_mutex); | |
3583 | ||
3584 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3585 | |
7a30a3db | 3586 | snd_soc_cache_exit(codec); |
3335ddca | 3587 | kfree(codec->reg_def_copy); |
1aafcd4d | 3588 | kfree(codec->name); |
f0fba2ad | 3589 | kfree(codec); |
0d0cf00a MB |
3590 | } |
3591 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3592 | ||
c9b3a40f | 3593 | static int __init snd_soc_init(void) |
db2a4165 | 3594 | { |
384c89e2 | 3595 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3596 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3597 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3598 | printk(KERN_WARNING |
3599 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3600 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3601 | } |
c3c5a19a | 3602 | |
8a9dab1a | 3603 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3604 | &codec_list_fops)) |
3605 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3606 | ||
8a9dab1a | 3607 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3608 | &dai_list_fops)) |
3609 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3610 | |
8a9dab1a | 3611 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3612 | &platform_list_fops)) |
3613 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3614 | #endif |
3615 | ||
db2a4165 FM |
3616 | return platform_driver_register(&soc_driver); |
3617 | } | |
4abe8e16 | 3618 | module_init(snd_soc_init); |
db2a4165 | 3619 | |
7d8c16a6 | 3620 | static void __exit snd_soc_exit(void) |
db2a4165 | 3621 | { |
384c89e2 | 3622 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3623 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3624 | #endif |
3ff3f64b | 3625 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3626 | } |
db2a4165 FM |
3627 | module_exit(snd_soc_exit); |
3628 | ||
3629 | /* Module information */ | |
d331124d | 3630 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3631 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3632 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3633 | MODULE_ALIAS("platform:soc-audio"); |