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 MB |
60 | |
61 | static int snd_soc_register_card(struct snd_soc_card *card); | |
62 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
f0fba2ad | 63 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 64 | |
db2a4165 FM |
65 | /* |
66 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
67 | * It can be used to eliminate pops between different playback streams, e.g. | |
68 | * between two audio tracks. | |
69 | */ | |
70 | static int pmdown_time = 5000; | |
71 | module_param(pmdown_time, int, 0); | |
72 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
73 | ||
2624d5fa MB |
74 | /* codec register dump */ |
75 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
76 | { | |
5164d74d | 77 | int ret, i, step = 1, count = 0; |
2624d5fa | 78 | |
f0fba2ad | 79 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
80 | return 0; |
81 | ||
f0fba2ad LG |
82 | if (codec->driver->reg_cache_step) |
83 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
84 | |
85 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad LG |
86 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
87 | if (codec->driver->readable_register && !codec->driver->readable_register(i)) | |
2624d5fa MB |
88 | continue; |
89 | ||
90 | count += sprintf(buf + count, "%2x: ", i); | |
91 | if (count >= PAGE_SIZE - 1) | |
92 | break; | |
93 | ||
f0fba2ad LG |
94 | if (codec->driver->display_register) { |
95 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 96 | PAGE_SIZE - count, i); |
5164d74d MB |
97 | } else { |
98 | /* If the read fails it's almost certainly due to | |
99 | * the register being volatile and the device being | |
100 | * powered off. | |
101 | */ | |
e4f078d8 | 102 | ret = snd_soc_read(codec, i); |
5164d74d MB |
103 | if (ret >= 0) |
104 | count += snprintf(buf + count, | |
105 | PAGE_SIZE - count, | |
106 | "%4x", ret); | |
107 | else | |
108 | count += snprintf(buf + count, | |
109 | PAGE_SIZE - count, | |
110 | "<no data: %d>", ret); | |
111 | } | |
2624d5fa MB |
112 | |
113 | if (count >= PAGE_SIZE - 1) | |
114 | break; | |
115 | ||
116 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
117 | if (count >= PAGE_SIZE - 1) | |
118 | break; | |
119 | } | |
120 | ||
121 | /* Truncate count; min() would cause a warning */ | |
122 | if (count >= PAGE_SIZE) | |
123 | count = PAGE_SIZE - 1; | |
124 | ||
125 | return count; | |
126 | } | |
127 | static ssize_t codec_reg_show(struct device *dev, | |
128 | struct device_attribute *attr, char *buf) | |
129 | { | |
f0fba2ad LG |
130 | struct snd_soc_pcm_runtime *rtd = |
131 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
132 | ||
133 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
134 | } |
135 | ||
136 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
137 | ||
dbe21408 MB |
138 | static ssize_t pmdown_time_show(struct device *dev, |
139 | struct device_attribute *attr, char *buf) | |
140 | { | |
f0fba2ad LG |
141 | struct snd_soc_pcm_runtime *rtd = |
142 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 143 | |
f0fba2ad | 144 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
145 | } |
146 | ||
147 | static ssize_t pmdown_time_set(struct device *dev, | |
148 | struct device_attribute *attr, | |
149 | const char *buf, size_t count) | |
150 | { | |
f0fba2ad LG |
151 | struct snd_soc_pcm_runtime *rtd = |
152 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
c593b520 | 153 | int ret; |
dbe21408 | 154 | |
c593b520 MB |
155 | ret = strict_strtol(buf, 10, &rtd->pmdown_time); |
156 | if (ret) | |
157 | return ret; | |
dbe21408 MB |
158 | |
159 | return count; | |
160 | } | |
161 | ||
162 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
163 | ||
2624d5fa MB |
164 | #ifdef CONFIG_DEBUG_FS |
165 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
166 | { | |
167 | file->private_data = inode->i_private; | |
168 | return 0; | |
169 | } | |
170 | ||
171 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
172 | size_t count, loff_t *ppos) | |
173 | { | |
174 | ssize_t ret; | |
175 | struct snd_soc_codec *codec = file->private_data; | |
176 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
177 | if (!buf) | |
178 | return -ENOMEM; | |
179 | ret = soc_codec_reg_show(codec, buf); | |
180 | if (ret >= 0) | |
181 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
182 | kfree(buf); | |
183 | return ret; | |
184 | } | |
185 | ||
186 | static ssize_t codec_reg_write_file(struct file *file, | |
187 | const char __user *user_buf, size_t count, loff_t *ppos) | |
188 | { | |
189 | char buf[32]; | |
190 | int buf_size; | |
191 | char *start = buf; | |
192 | unsigned long reg, value; | |
193 | int step = 1; | |
194 | struct snd_soc_codec *codec = file->private_data; | |
195 | ||
196 | buf_size = min(count, (sizeof(buf)-1)); | |
197 | if (copy_from_user(buf, user_buf, buf_size)) | |
198 | return -EFAULT; | |
199 | buf[buf_size] = 0; | |
200 | ||
f0fba2ad LG |
201 | if (codec->driver->reg_cache_step) |
202 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
203 | |
204 | while (*start == ' ') | |
205 | start++; | |
206 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 207 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
208 | return -EINVAL; |
209 | while (*start == ' ') | |
210 | start++; | |
211 | if (strict_strtoul(start, 16, &value)) | |
212 | return -EINVAL; | |
0d51a9cb MB |
213 | |
214 | /* Userspace has been fiddling around behind the kernel's back */ | |
215 | add_taint(TAINT_USER); | |
216 | ||
e4f078d8 | 217 | snd_soc_write(codec, reg, value); |
2624d5fa MB |
218 | return buf_size; |
219 | } | |
220 | ||
221 | static const struct file_operations codec_reg_fops = { | |
222 | .open = codec_reg_open_file, | |
223 | .read = codec_reg_read_file, | |
224 | .write = codec_reg_write_file, | |
6038f373 | 225 | .llseek = default_llseek, |
2624d5fa MB |
226 | }; |
227 | ||
228 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
229 | { | |
d6ce4cf3 JN |
230 | struct dentry *debugfs_card_root = codec->card->debugfs_card_root; |
231 | ||
232 | codec->debugfs_codec_root = debugfs_create_dir(codec->name, | |
233 | debugfs_card_root); | |
2624d5fa MB |
234 | if (!codec->debugfs_codec_root) { |
235 | printk(KERN_WARNING | |
236 | "ASoC: Failed to create codec debugfs directory\n"); | |
237 | return; | |
238 | } | |
239 | ||
240 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
241 | codec->debugfs_codec_root, | |
242 | codec, &codec_reg_fops); | |
243 | if (!codec->debugfs_reg) | |
244 | printk(KERN_WARNING | |
245 | "ASoC: Failed to create codec register debugfs file\n"); | |
246 | ||
ce6120cc | 247 | codec->dapm.debugfs_dapm = debugfs_create_dir("dapm", |
2624d5fa | 248 | codec->debugfs_codec_root); |
ce6120cc | 249 | if (!codec->dapm.debugfs_dapm) |
2624d5fa MB |
250 | printk(KERN_WARNING |
251 | "Failed to create DAPM debugfs directory\n"); | |
252 | ||
ce6120cc | 253 | snd_soc_dapm_debugfs_init(&codec->dapm); |
2624d5fa MB |
254 | } |
255 | ||
256 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
257 | { | |
258 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
259 | } | |
260 | ||
c3c5a19a MB |
261 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
262 | size_t count, loff_t *ppos) | |
263 | { | |
264 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 265 | ssize_t len, ret = 0; |
c3c5a19a MB |
266 | struct snd_soc_codec *codec; |
267 | ||
268 | if (!buf) | |
269 | return -ENOMEM; | |
270 | ||
2b194f9d MB |
271 | list_for_each_entry(codec, &codec_list, list) { |
272 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
273 | codec->name); | |
274 | if (len >= 0) | |
275 | ret += len; | |
276 | if (ret > PAGE_SIZE) { | |
277 | ret = PAGE_SIZE; | |
278 | break; | |
279 | } | |
280 | } | |
c3c5a19a MB |
281 | |
282 | if (ret >= 0) | |
283 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
284 | ||
285 | kfree(buf); | |
286 | ||
287 | return ret; | |
288 | } | |
289 | ||
290 | static const struct file_operations codec_list_fops = { | |
291 | .read = codec_list_read_file, | |
292 | .llseek = default_llseek,/* read accesses f_pos */ | |
293 | }; | |
294 | ||
f3208780 MB |
295 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
296 | size_t count, loff_t *ppos) | |
297 | { | |
298 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 299 | ssize_t len, ret = 0; |
f3208780 MB |
300 | struct snd_soc_dai *dai; |
301 | ||
302 | if (!buf) | |
303 | return -ENOMEM; | |
304 | ||
2b194f9d MB |
305 | list_for_each_entry(dai, &dai_list, list) { |
306 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
307 | if (len >= 0) | |
308 | ret += len; | |
309 | if (ret > PAGE_SIZE) { | |
310 | ret = PAGE_SIZE; | |
311 | break; | |
312 | } | |
313 | } | |
f3208780 | 314 | |
2b194f9d | 315 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
f3208780 MB |
316 | |
317 | kfree(buf); | |
318 | ||
319 | return ret; | |
320 | } | |
321 | ||
322 | static const struct file_operations dai_list_fops = { | |
323 | .read = dai_list_read_file, | |
324 | .llseek = default_llseek,/* read accesses f_pos */ | |
325 | }; | |
326 | ||
19c7ac27 MB |
327 | static ssize_t platform_list_read_file(struct file *file, |
328 | char __user *user_buf, | |
329 | size_t count, loff_t *ppos) | |
330 | { | |
331 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
2b194f9d | 332 | ssize_t len, ret = 0; |
19c7ac27 MB |
333 | struct snd_soc_platform *platform; |
334 | ||
335 | if (!buf) | |
336 | return -ENOMEM; | |
337 | ||
2b194f9d MB |
338 | list_for_each_entry(platform, &platform_list, list) { |
339 | len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
340 | platform->name); | |
341 | if (len >= 0) | |
342 | ret += len; | |
343 | if (ret > PAGE_SIZE) { | |
344 | ret = PAGE_SIZE; | |
345 | break; | |
346 | } | |
347 | } | |
19c7ac27 | 348 | |
2b194f9d | 349 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
19c7ac27 MB |
350 | |
351 | kfree(buf); | |
352 | ||
353 | return ret; | |
354 | } | |
355 | ||
356 | static const struct file_operations platform_list_fops = { | |
357 | .read = platform_list_read_file, | |
358 | .llseek = default_llseek,/* read accesses f_pos */ | |
359 | }; | |
360 | ||
a6052154 JN |
361 | static void soc_init_card_debugfs(struct snd_soc_card *card) |
362 | { | |
363 | card->debugfs_card_root = debugfs_create_dir(card->name, | |
8a9dab1a | 364 | snd_soc_debugfs_root); |
3a45b867 | 365 | if (!card->debugfs_card_root) { |
a6052154 JN |
366 | dev_warn(card->dev, |
367 | "ASoC: Failed to create codec debugfs directory\n"); | |
3a45b867 JN |
368 | return; |
369 | } | |
370 | ||
371 | card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, | |
372 | card->debugfs_card_root, | |
373 | &card->pop_time); | |
374 | if (!card->debugfs_pop_time) | |
375 | dev_warn(card->dev, | |
376 | "Failed to create pop time debugfs file\n"); | |
a6052154 JN |
377 | } |
378 | ||
379 | static void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
380 | { | |
381 | debugfs_remove_recursive(card->debugfs_card_root); | |
382 | } | |
383 | ||
2624d5fa MB |
384 | #else |
385 | ||
386 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
387 | { | |
388 | } | |
389 | ||
390 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
391 | { | |
392 | } | |
b95fccbc AL |
393 | |
394 | static inline void soc_init_card_debugfs(struct snd_soc_card *card) | |
395 | { | |
396 | } | |
397 | ||
398 | static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card) | |
399 | { | |
400 | } | |
2624d5fa MB |
401 | #endif |
402 | ||
db2a4165 FM |
403 | #ifdef CONFIG_SND_SOC_AC97_BUS |
404 | /* unregister ac97 codec */ | |
405 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
406 | { | |
407 | if (codec->ac97->dev.bus) | |
408 | device_unregister(&codec->ac97->dev); | |
409 | return 0; | |
410 | } | |
411 | ||
412 | /* stop no dev release warning */ | |
413 | static void soc_ac97_device_release(struct device *dev){} | |
414 | ||
415 | /* register ac97 codec to bus */ | |
416 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
417 | { | |
418 | int err; | |
419 | ||
420 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 421 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
422 | codec->ac97->dev.release = soc_ac97_device_release; |
423 | ||
bb072bf0 | 424 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 425 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
426 | err = device_register(&codec->ac97->dev); |
427 | if (err < 0) { | |
428 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
429 | codec->ac97->dev.bus = NULL; | |
430 | return err; | |
431 | } | |
432 | return 0; | |
433 | } | |
434 | #endif | |
435 | ||
06f409d7 MB |
436 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
437 | { | |
438 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
439 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
440 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
441 | int ret; |
442 | ||
f0fba2ad LG |
443 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
444 | rtd->dai_link->symmetric_rates) { | |
445 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
446 | rtd->rate); | |
06f409d7 MB |
447 | |
448 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
449 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
450 | rtd->rate, |
451 | rtd->rate); | |
06f409d7 | 452 | if (ret < 0) { |
f0fba2ad | 453 | dev_err(&rtd->dev, |
06f409d7 MB |
454 | "Unable to apply rate symmetry constraint: %d\n", ret); |
455 | return ret; | |
456 | } | |
457 | } | |
458 | ||
459 | return 0; | |
460 | } | |
461 | ||
db2a4165 FM |
462 | /* |
463 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
464 | * then initialized and any private data can be allocated. This also calls | |
465 | * startup for the cpu DAI, platform, machine and codec DAI. | |
466 | */ | |
467 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
468 | { | |
469 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 470 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
471 | struct snd_soc_platform *platform = rtd->platform; |
472 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
473 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
474 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
475 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
476 | int ret = 0; |
477 | ||
478 | mutex_lock(&pcm_mutex); | |
479 | ||
480 | /* startup the audio subsystem */ | |
f0fba2ad LG |
481 | if (cpu_dai->driver->ops->startup) { |
482 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
483 | if (ret < 0) { |
484 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 485 | cpu_dai->name); |
db2a4165 FM |
486 | goto out; |
487 | } | |
488 | } | |
489 | ||
f0fba2ad LG |
490 | if (platform->driver->ops->open) { |
491 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
492 | if (ret < 0) { |
493 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
494 | goto platform_err; | |
495 | } | |
496 | } | |
497 | ||
f0fba2ad LG |
498 | if (codec_dai->driver->ops->startup) { |
499 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 500 | if (ret < 0) { |
cb666e5b LG |
501 | printk(KERN_ERR "asoc: can't open codec %s\n", |
502 | codec_dai->name); | |
503 | goto codec_dai_err; | |
db2a4165 FM |
504 | } |
505 | } | |
506 | ||
f0fba2ad LG |
507 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
508 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 509 | if (ret < 0) { |
f0fba2ad | 510 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 511 | goto machine_err; |
db2a4165 FM |
512 | } |
513 | } | |
514 | ||
a00f90f9 | 515 | /* Check that the codec and cpu DAIs are compatible */ |
db2a4165 FM |
516 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
517 | runtime->hw.rate_min = | |
f0fba2ad LG |
518 | max(codec_dai_drv->playback.rate_min, |
519 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 520 | runtime->hw.rate_max = |
f0fba2ad LG |
521 | min(codec_dai_drv->playback.rate_max, |
522 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 523 | runtime->hw.channels_min = |
f0fba2ad LG |
524 | max(codec_dai_drv->playback.channels_min, |
525 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 526 | runtime->hw.channels_max = |
f0fba2ad LG |
527 | min(codec_dai_drv->playback.channels_max, |
528 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 529 | runtime->hw.formats = |
f0fba2ad | 530 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 531 | runtime->hw.rates = |
f0fba2ad LG |
532 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
533 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 534 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
535 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
536 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 537 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 538 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
539 | } else { |
540 | runtime->hw.rate_min = | |
f0fba2ad LG |
541 | max(codec_dai_drv->capture.rate_min, |
542 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 543 | runtime->hw.rate_max = |
f0fba2ad LG |
544 | min(codec_dai_drv->capture.rate_max, |
545 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 546 | runtime->hw.channels_min = |
f0fba2ad LG |
547 | max(codec_dai_drv->capture.channels_min, |
548 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 549 | runtime->hw.channels_max = |
f0fba2ad LG |
550 | min(codec_dai_drv->capture.channels_max, |
551 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 552 | runtime->hw.formats = |
f0fba2ad | 553 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 554 | runtime->hw.rates = |
f0fba2ad LG |
555 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
556 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 557 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
558 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
559 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 560 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 561 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
562 | } |
563 | ||
564 | snd_pcm_limit_hw_rates(runtime); | |
565 | if (!runtime->hw.rates) { | |
566 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 567 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 568 | goto config_err; |
db2a4165 FM |
569 | } |
570 | if (!runtime->hw.formats) { | |
571 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 572 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 573 | goto config_err; |
db2a4165 FM |
574 | } |
575 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
576 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 577 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 578 | goto config_err; |
db2a4165 FM |
579 | } |
580 | ||
06f409d7 MB |
581 | /* Symmetry only applies if we've already got an active stream. */ |
582 | if (cpu_dai->active || codec_dai->active) { | |
583 | ret = soc_pcm_apply_symmetry(substream); | |
584 | if (ret != 0) | |
bb1c0478 | 585 | goto config_err; |
06f409d7 MB |
586 | } |
587 | ||
f0fba2ad LG |
588 | pr_debug("asoc: %s <-> %s info:\n", |
589 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
590 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
591 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
592 | runtime->hw.channels_max); | |
593 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
594 | runtime->hw.rate_max); | |
db2a4165 | 595 | |
14dc5734 | 596 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
597 | cpu_dai->playback_active++; |
598 | codec_dai->playback_active++; | |
14dc5734 | 599 | } else { |
f0fba2ad LG |
600 | cpu_dai->capture_active++; |
601 | codec_dai->capture_active++; | |
14dc5734 JB |
602 | } |
603 | cpu_dai->active++; | |
604 | codec_dai->active++; | |
f0fba2ad | 605 | rtd->codec->active++; |
db2a4165 FM |
606 | mutex_unlock(&pcm_mutex); |
607 | return 0; | |
608 | ||
bb1c0478 | 609 | config_err: |
f0fba2ad LG |
610 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
611 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 612 | |
bb1c0478 | 613 | machine_err: |
f0fba2ad LG |
614 | if (codec_dai->driver->ops->shutdown) |
615 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 616 | |
cb666e5b | 617 | codec_dai_err: |
f0fba2ad LG |
618 | if (platform->driver->ops->close) |
619 | platform->driver->ops->close(substream); | |
db2a4165 FM |
620 | |
621 | platform_err: | |
f0fba2ad LG |
622 | if (cpu_dai->driver->ops->shutdown) |
623 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
624 | out: |
625 | mutex_unlock(&pcm_mutex); | |
626 | return ret; | |
627 | } | |
628 | ||
629 | /* | |
3a4fa0a2 | 630 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
631 | * This is to ensure there are no pops or clicks in between any music tracks |
632 | * due to DAPM power cycling. | |
633 | */ | |
4484bb2e | 634 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 635 | { |
f0fba2ad LG |
636 | struct snd_soc_pcm_runtime *rtd = |
637 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
638 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
639 | |
640 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
641 | |
642 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
643 | codec_dai->driver->playback.stream_name, | |
644 | codec_dai->playback_active ? "active" : "inactive", | |
645 | codec_dai->pop_wait ? "yes" : "no"); | |
646 | ||
647 | /* are we waiting on this codec DAI stream */ | |
648 | if (codec_dai->pop_wait == 1) { | |
649 | codec_dai->pop_wait = 0; | |
650 | snd_soc_dapm_stream_event(rtd, | |
651 | codec_dai->driver->playback.stream_name, | |
652 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 653 | } |
f0fba2ad | 654 | |
db2a4165 FM |
655 | mutex_unlock(&pcm_mutex); |
656 | } | |
657 | ||
658 | /* | |
659 | * Called by ALSA when a PCM substream is closed. Private data can be | |
660 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
661 | * shutdown. | |
662 | */ | |
663 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
664 | { | |
665 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
666 | struct snd_soc_platform *platform = rtd->platform; |
667 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
668 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
669 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
670 | |
671 | mutex_lock(&pcm_mutex); | |
672 | ||
14dc5734 | 673 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
674 | cpu_dai->playback_active--; |
675 | codec_dai->playback_active--; | |
14dc5734 | 676 | } else { |
f0fba2ad LG |
677 | cpu_dai->capture_active--; |
678 | codec_dai->capture_active--; | |
db2a4165 | 679 | } |
14dc5734 JB |
680 | |
681 | cpu_dai->active--; | |
682 | codec_dai->active--; | |
db2a4165 FM |
683 | codec->active--; |
684 | ||
6010b2da MB |
685 | /* Muting the DAC suppresses artifacts caused during digital |
686 | * shutdown, for example from stopping clocks. | |
687 | */ | |
688 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
689 | snd_soc_dai_digital_mute(codec_dai, 1); | |
690 | ||
f0fba2ad LG |
691 | if (cpu_dai->driver->ops->shutdown) |
692 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 693 | |
f0fba2ad LG |
694 | if (codec_dai->driver->ops->shutdown) |
695 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 696 | |
f0fba2ad LG |
697 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
698 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 699 | |
f0fba2ad LG |
700 | if (platform->driver->ops->close) |
701 | platform->driver->ops->close(substream); | |
702 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
703 | |
704 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
705 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 706 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
707 | schedule_delayed_work(&rtd->delayed_work, |
708 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
709 | } else { |
710 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
711 | snd_soc_dapm_stream_event(rtd, |
712 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 713 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
714 | } |
715 | ||
716 | mutex_unlock(&pcm_mutex); | |
717 | return 0; | |
718 | } | |
719 | ||
720 | /* | |
721 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
722 | * rate, etc. This function is non atomic and can be called multiple times, | |
723 | * it can refer to the runtime info. | |
724 | */ | |
725 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
726 | { | |
727 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
728 | struct snd_soc_platform *platform = rtd->platform; |
729 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
730 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
731 | int ret = 0; |
732 | ||
733 | mutex_lock(&pcm_mutex); | |
cb666e5b | 734 | |
f0fba2ad LG |
735 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
736 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
737 | if (ret < 0) { |
738 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
739 | goto out; | |
740 | } | |
741 | } | |
742 | ||
f0fba2ad LG |
743 | if (platform->driver->ops->prepare) { |
744 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
745 | if (ret < 0) { |
746 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 747 | goto out; |
a71a468a | 748 | } |
db2a4165 FM |
749 | } |
750 | ||
f0fba2ad LG |
751 | if (codec_dai->driver->ops->prepare) { |
752 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
753 | if (ret < 0) { |
754 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 755 | goto out; |
a71a468a | 756 | } |
db2a4165 FM |
757 | } |
758 | ||
f0fba2ad LG |
759 | if (cpu_dai->driver->ops->prepare) { |
760 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
761 | if (ret < 0) { |
762 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
763 | goto out; | |
764 | } | |
765 | } | |
db2a4165 | 766 | |
d45f6219 MB |
767 | /* cancel any delayed stream shutdown that is pending */ |
768 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
769 | codec_dai->pop_wait) { | |
770 | codec_dai->pop_wait = 0; | |
f0fba2ad | 771 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 772 | } |
db2a4165 | 773 | |
452c5eaa | 774 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
775 | snd_soc_dapm_stream_event(rtd, |
776 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
777 | SND_SOC_DAPM_STREAM_START); |
778 | else | |
f0fba2ad LG |
779 | snd_soc_dapm_stream_event(rtd, |
780 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 781 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 782 | |
452c5eaa | 783 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
784 | |
785 | out: | |
786 | mutex_unlock(&pcm_mutex); | |
787 | return ret; | |
788 | } | |
789 | ||
790 | /* | |
791 | * Called by ALSA when the hardware params are set by application. This | |
792 | * function can also be called multiple times and can allocate buffers | |
793 | * (using snd_pcm_lib_* ). It's non-atomic. | |
794 | */ | |
795 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
796 | struct snd_pcm_hw_params *params) | |
797 | { | |
798 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
799 | struct snd_soc_platform *platform = rtd->platform; |
800 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
801 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
802 | int ret = 0; |
803 | ||
804 | mutex_lock(&pcm_mutex); | |
805 | ||
f0fba2ad LG |
806 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
807 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
808 | if (ret < 0) { |
809 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 810 | goto out; |
cb666e5b | 811 | } |
db2a4165 FM |
812 | } |
813 | ||
f0fba2ad LG |
814 | if (codec_dai->driver->ops->hw_params) { |
815 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
816 | if (ret < 0) { |
817 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
818 | codec_dai->name); |
819 | goto codec_err; | |
db2a4165 FM |
820 | } |
821 | } | |
822 | ||
f0fba2ad LG |
823 | if (cpu_dai->driver->ops->hw_params) { |
824 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 825 | if (ret < 0) { |
3ff3f64b | 826 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 827 | cpu_dai->name); |
db2a4165 FM |
828 | goto interface_err; |
829 | } | |
830 | } | |
831 | ||
f0fba2ad LG |
832 | if (platform->driver->ops->hw_params) { |
833 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 834 | if (ret < 0) { |
3ff3f64b | 835 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
836 | platform->name); |
837 | goto platform_err; | |
838 | } | |
839 | } | |
840 | ||
f0fba2ad | 841 | rtd->rate = params_rate(params); |
06f409d7 | 842 | |
db2a4165 FM |
843 | out: |
844 | mutex_unlock(&pcm_mutex); | |
845 | return ret; | |
846 | ||
db2a4165 | 847 | platform_err: |
f0fba2ad LG |
848 | if (cpu_dai->driver->ops->hw_free) |
849 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
850 | |
851 | interface_err: | |
f0fba2ad LG |
852 | if (codec_dai->driver->ops->hw_free) |
853 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
854 | |
855 | codec_err: | |
f0fba2ad LG |
856 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
857 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
858 | |
859 | mutex_unlock(&pcm_mutex); | |
860 | return ret; | |
861 | } | |
862 | ||
863 | /* | |
a00f90f9 | 864 | * Frees resources allocated by hw_params, can be called multiple times |
db2a4165 FM |
865 | */ |
866 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
867 | { | |
868 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
869 | struct snd_soc_platform *platform = rtd->platform; |
870 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
871 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
872 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
873 | |
874 | mutex_lock(&pcm_mutex); | |
875 | ||
876 | /* apply codec digital mute */ | |
8c6529db LG |
877 | if (!codec->active) |
878 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
879 | |
880 | /* free any machine hw params */ | |
f0fba2ad LG |
881 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
882 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
883 | |
884 | /* free any DMA resources */ | |
f0fba2ad LG |
885 | if (platform->driver->ops->hw_free) |
886 | platform->driver->ops->hw_free(substream); | |
db2a4165 | 887 | |
a00f90f9 | 888 | /* now free hw params for the DAIs */ |
f0fba2ad LG |
889 | if (codec_dai->driver->ops->hw_free) |
890 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 891 | |
f0fba2ad LG |
892 | if (cpu_dai->driver->ops->hw_free) |
893 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
894 | |
895 | mutex_unlock(&pcm_mutex); | |
896 | return 0; | |
897 | } | |
898 | ||
899 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
900 | { | |
901 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
902 | struct snd_soc_platform *platform = rtd->platform; |
903 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
904 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
905 | int ret; |
906 | ||
f0fba2ad LG |
907 | if (codec_dai->driver->ops->trigger) { |
908 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
909 | if (ret < 0) |
910 | return ret; | |
911 | } | |
912 | ||
f0fba2ad LG |
913 | if (platform->driver->ops->trigger) { |
914 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
915 | if (ret < 0) |
916 | return ret; | |
917 | } | |
918 | ||
f0fba2ad LG |
919 | if (cpu_dai->driver->ops->trigger) { |
920 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
921 | if (ret < 0) |
922 | return ret; | |
923 | } | |
924 | return 0; | |
925 | } | |
926 | ||
377b6f62 PU |
927 | /* |
928 | * soc level wrapper for pointer callback | |
258020d0 PU |
929 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
930 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
931 | */ |
932 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
933 | { | |
934 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
935 | struct snd_soc_platform *platform = rtd->platform; |
936 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
937 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 938 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 939 | snd_pcm_uframes_t offset = 0; |
258020d0 | 940 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 941 | |
f0fba2ad LG |
942 | if (platform->driver->ops->pointer) |
943 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 944 | |
f0fba2ad LG |
945 | if (cpu_dai->driver->ops->delay) |
946 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 947 | |
f0fba2ad LG |
948 | if (codec_dai->driver->ops->delay) |
949 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 950 | |
f0fba2ad LG |
951 | if (platform->driver->delay) |
952 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
953 | |
954 | runtime->delay = delay; | |
955 | ||
377b6f62 PU |
956 | return offset; |
957 | } | |
958 | ||
db2a4165 FM |
959 | /* ASoC PCM operations */ |
960 | static struct snd_pcm_ops soc_pcm_ops = { | |
961 | .open = soc_pcm_open, | |
962 | .close = soc_codec_close, | |
963 | .hw_params = soc_pcm_hw_params, | |
964 | .hw_free = soc_pcm_hw_free, | |
965 | .prepare = soc_pcm_prepare, | |
966 | .trigger = soc_pcm_trigger, | |
377b6f62 | 967 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
968 | }; |
969 | ||
970 | #ifdef CONFIG_PM | |
971 | /* powers down audio subsystem for suspend */ | |
416356fc | 972 | static int soc_suspend(struct device *dev) |
db2a4165 | 973 | { |
416356fc | 974 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 975 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
2eea392d | 976 | struct snd_soc_codec *codec; |
db2a4165 FM |
977 | int i; |
978 | ||
e3509ff0 DM |
979 | /* If the initialization of this soc device failed, there is no codec |
980 | * associated with it. Just bail out in this case. | |
981 | */ | |
f0fba2ad | 982 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
983 | return 0; |
984 | ||
6ed25978 AG |
985 | /* Due to the resume being scheduled into a workqueue we could |
986 | * suspend before that's finished - wait for it to complete. | |
987 | */ | |
f0fba2ad LG |
988 | snd_power_lock(card->snd_card); |
989 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
990 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
991 | |
992 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 993 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 994 | |
a00f90f9 | 995 | /* mute any active DACs */ |
f0fba2ad LG |
996 | for (i = 0; i < card->num_rtd; i++) { |
997 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
998 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 999 | |
f0fba2ad | 1000 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1001 | continue; |
1002 | ||
f0fba2ad LG |
1003 | if (drv->ops->digital_mute && dai->playback_active) |
1004 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
1005 | } |
1006 | ||
4ccab3e7 | 1007 | /* suspend all pcms */ |
f0fba2ad LG |
1008 | for (i = 0; i < card->num_rtd; i++) { |
1009 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
1010 | continue; |
1011 | ||
f0fba2ad | 1012 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 1013 | } |
4ccab3e7 | 1014 | |
87506549 | 1015 | if (card->suspend_pre) |
416356fc | 1016 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 1017 | |
f0fba2ad LG |
1018 | for (i = 0; i < card->num_rtd; i++) { |
1019 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1020 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1021 | |
f0fba2ad | 1022 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1023 | continue; |
1024 | ||
f0fba2ad LG |
1025 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
1026 | cpu_dai->driver->suspend(cpu_dai); | |
1027 | if (platform->driver->suspend && !platform->suspended) { | |
1028 | platform->driver->suspend(cpu_dai); | |
1029 | platform->suspended = 1; | |
1030 | } | |
db2a4165 FM |
1031 | } |
1032 | ||
1033 | /* close any waiting streams and save state */ | |
f0fba2ad | 1034 | for (i = 0; i < card->num_rtd; i++) { |
5b84ba26 | 1035 | flush_delayed_work_sync(&card->rtd[i].delayed_work); |
ce6120cc | 1036 | card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level; |
f0fba2ad | 1037 | } |
db2a4165 | 1038 | |
f0fba2ad LG |
1039 | for (i = 0; i < card->num_rtd; i++) { |
1040 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1041 | |
f0fba2ad | 1042 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1043 | continue; |
1044 | ||
f0fba2ad LG |
1045 | if (driver->playback.stream_name != NULL) |
1046 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1047 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1048 | |
1049 | if (driver->capture.stream_name != NULL) | |
1050 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1051 | SND_SOC_DAPM_STREAM_SUSPEND); |
1052 | } | |
1053 | ||
f0fba2ad | 1054 | /* suspend all CODECs */ |
2eea392d | 1055 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1056 | /* If there are paths active then the CODEC will be held with |
1057 | * bias _ON and should not be suspended. */ | |
1058 | if (!codec->suspended && codec->driver->suspend) { | |
ce6120cc | 1059 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1060 | case SND_SOC_BIAS_STANDBY: |
1061 | case SND_SOC_BIAS_OFF: | |
1062 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1063 | codec->suspended = 1; | |
1064 | break; | |
1065 | default: | |
1066 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1067 | break; | |
1068 | } | |
1547aba9 MB |
1069 | } |
1070 | } | |
db2a4165 | 1071 | |
f0fba2ad LG |
1072 | for (i = 0; i < card->num_rtd; i++) { |
1073 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1074 | |
f0fba2ad | 1075 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1076 | continue; |
1077 | ||
f0fba2ad LG |
1078 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1079 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1080 | } |
1081 | ||
87506549 | 1082 | if (card->suspend_post) |
416356fc | 1083 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
1084 | |
1085 | return 0; | |
1086 | } | |
1087 | ||
6ed25978 AG |
1088 | /* deferred resume work, so resume can complete before we finished |
1089 | * setting our codec back up, which can be very slow on I2C | |
1090 | */ | |
1091 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1092 | { |
f0fba2ad LG |
1093 | struct snd_soc_card *card = |
1094 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1095 | struct platform_device *pdev = to_platform_device(card->dev); | |
2eea392d | 1096 | struct snd_soc_codec *codec; |
db2a4165 FM |
1097 | int i; |
1098 | ||
6ed25978 AG |
1099 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1100 | * so userspace apps are blocked from touching us | |
1101 | */ | |
1102 | ||
f0fba2ad | 1103 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1104 | |
9949788b | 1105 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1106 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1107 | |
87506549 MB |
1108 | if (card->resume_pre) |
1109 | card->resume_pre(pdev); | |
db2a4165 | 1110 | |
f0fba2ad LG |
1111 | /* resume AC97 DAIs */ |
1112 | for (i = 0; i < card->num_rtd; i++) { | |
1113 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1114 | |
f0fba2ad | 1115 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1116 | continue; |
1117 | ||
f0fba2ad LG |
1118 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1119 | cpu_dai->driver->resume(cpu_dai); | |
1120 | } | |
1121 | ||
2eea392d | 1122 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
f0fba2ad LG |
1123 | /* If the CODEC was idle over suspend then it will have been |
1124 | * left with bias OFF or STANDBY and suspended so we must now | |
1125 | * resume. Otherwise the suspend was suppressed. | |
1126 | */ | |
1127 | if (codec->driver->resume && codec->suspended) { | |
ce6120cc | 1128 | switch (codec->dapm.bias_level) { |
f0fba2ad LG |
1129 | case SND_SOC_BIAS_STANDBY: |
1130 | case SND_SOC_BIAS_OFF: | |
1131 | codec->driver->resume(codec); | |
1132 | codec->suspended = 0; | |
1133 | break; | |
1134 | default: | |
1135 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1136 | break; | |
1137 | } | |
1547aba9 MB |
1138 | } |
1139 | } | |
db2a4165 | 1140 | |
f0fba2ad LG |
1141 | for (i = 0; i < card->num_rtd; i++) { |
1142 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1143 | |
f0fba2ad | 1144 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1145 | continue; |
1146 | ||
f0fba2ad LG |
1147 | if (driver->playback.stream_name != NULL) |
1148 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1149 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1150 | |
1151 | if (driver->capture.stream_name != NULL) | |
1152 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1153 | SND_SOC_DAPM_STREAM_RESUME); |
1154 | } | |
1155 | ||
3ff3f64b | 1156 | /* unmute any active DACs */ |
f0fba2ad LG |
1157 | for (i = 0; i < card->num_rtd; i++) { |
1158 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1159 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1160 | |
f0fba2ad | 1161 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1162 | continue; |
1163 | ||
f0fba2ad LG |
1164 | if (drv->ops->digital_mute && dai->playback_active) |
1165 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1166 | } |
1167 | ||
f0fba2ad LG |
1168 | for (i = 0; i < card->num_rtd; i++) { |
1169 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1170 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1171 | |
f0fba2ad | 1172 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1173 | continue; |
1174 | ||
f0fba2ad LG |
1175 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1176 | cpu_dai->driver->resume(cpu_dai); | |
1177 | if (platform->driver->resume && platform->suspended) { | |
1178 | platform->driver->resume(cpu_dai); | |
1179 | platform->suspended = 0; | |
1180 | } | |
db2a4165 FM |
1181 | } |
1182 | ||
87506549 MB |
1183 | if (card->resume_post) |
1184 | card->resume_post(pdev); | |
db2a4165 | 1185 | |
f0fba2ad | 1186 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1187 | |
1188 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1189 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1190 | } |
1191 | ||
1192 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1193 | static int soc_resume(struct device *dev) |
6ed25978 | 1194 | { |
416356fc | 1195 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1196 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1197 | int i; | |
b9dd94a8 | 1198 | |
64ab9baa MB |
1199 | /* AC97 devices might have other drivers hanging off them so |
1200 | * need to resume immediately. Other drivers don't have that | |
1201 | * problem and may take a substantial amount of time to resume | |
1202 | * due to I/O costs and anti-pop so handle them out of line. | |
1203 | */ | |
f0fba2ad LG |
1204 | for (i = 0; i < card->num_rtd; i++) { |
1205 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1206 | if (cpu_dai->driver->ac97_control) { | |
1207 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1208 | soc_resume_deferred(&card->deferred_resume_work); | |
1209 | } else { | |
1210 | dev_dbg(dev, "Scheduling resume work\n"); | |
1211 | if (!schedule_work(&card->deferred_resume_work)) | |
1212 | dev_err(dev, "resume work item may be lost\n"); | |
1213 | } | |
64ab9baa | 1214 | } |
6ed25978 | 1215 | |
db2a4165 FM |
1216 | return 0; |
1217 | } | |
db2a4165 FM |
1218 | #else |
1219 | #define soc_suspend NULL | |
1220 | #define soc_resume NULL | |
1221 | #endif | |
1222 | ||
02a06d30 BS |
1223 | static struct snd_soc_dai_ops null_dai_ops = { |
1224 | }; | |
1225 | ||
f0fba2ad | 1226 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1227 | { |
f0fba2ad LG |
1228 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1229 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1230 | struct snd_soc_codec *codec; |
435c5e25 | 1231 | struct snd_soc_platform *platform; |
f0fba2ad | 1232 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1233 | |
f0fba2ad LG |
1234 | if (rtd->complete) |
1235 | return 1; | |
1236 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1237 | |
f0fba2ad LG |
1238 | /* do we already have the CPU DAI for this link ? */ |
1239 | if (rtd->cpu_dai) { | |
1240 | goto find_codec; | |
1241 | } | |
1242 | /* no, then find CPU DAI from registered DAIs*/ | |
1243 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1244 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1245 | ||
1246 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1247 | return -ENODEV; | |
1248 | ||
1249 | rtd->cpu_dai = cpu_dai; | |
1250 | goto find_codec; | |
435c5e25 | 1251 | } |
435c5e25 | 1252 | } |
f0fba2ad LG |
1253 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1254 | dai_link->cpu_dai_name); | |
6308419a | 1255 | |
f0fba2ad LG |
1256 | find_codec: |
1257 | /* do we already have the CODEC for this link ? */ | |
1258 | if (rtd->codec) { | |
1259 | goto find_platform; | |
1260 | } | |
1261 | ||
1262 | /* no, then find CODEC from registered CODECs*/ | |
1263 | list_for_each_entry(codec, &codec_list, list) { | |
1264 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1265 | rtd->codec = codec; | |
1266 | ||
f0fba2ad LG |
1267 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ |
1268 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1269 | if (codec->dev == codec_dai->dev && | |
1270 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1271 | rtd->codec_dai = codec_dai; | |
1272 | goto find_platform; | |
1273 | } | |
435c5e25 | 1274 | } |
f0fba2ad LG |
1275 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1276 | dai_link->codec_dai_name); | |
1277 | ||
1278 | goto find_platform; | |
435c5e25 | 1279 | } |
f0fba2ad LG |
1280 | } |
1281 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1282 | dai_link->codec_name); | |
6b05eda6 | 1283 | |
f0fba2ad LG |
1284 | find_platform: |
1285 | /* do we already have the CODEC DAI for this link ? */ | |
1286 | if (rtd->platform) { | |
1287 | goto out; | |
c5af3a2e | 1288 | } |
f0fba2ad LG |
1289 | /* no, then find CPU DAI from registered DAIs*/ |
1290 | list_for_each_entry(platform, &platform_list, list) { | |
1291 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
f0fba2ad LG |
1292 | rtd->platform = platform; |
1293 | goto out; | |
1294 | } | |
02a06d30 BS |
1295 | } |
1296 | ||
f0fba2ad LG |
1297 | dev_dbg(card->dev, "platform %s not registered\n", |
1298 | dai_link->platform_name); | |
1299 | return 0; | |
1300 | ||
1301 | out: | |
1302 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1303 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1304 | rtd->complete = 1; | |
1305 | card->num_rtd++; | |
1306 | } | |
1307 | return 1; | |
1308 | } | |
1309 | ||
589c3563 JN |
1310 | static void soc_remove_codec(struct snd_soc_codec *codec) |
1311 | { | |
1312 | int err; | |
1313 | ||
1314 | if (codec->driver->remove) { | |
1315 | err = codec->driver->remove(codec); | |
1316 | if (err < 0) | |
1317 | dev_err(codec->dev, | |
1318 | "asoc: failed to remove %s: %d\n", | |
1319 | codec->name, err); | |
1320 | } | |
1321 | ||
1322 | /* Make sure all DAPM widgets are freed */ | |
1323 | snd_soc_dapm_free(&codec->dapm); | |
1324 | ||
1325 | soc_cleanup_codec_debugfs(codec); | |
1326 | codec->probed = 0; | |
1327 | list_del(&codec->card_list); | |
1328 | module_put(codec->dev->driver->owner); | |
1329 | } | |
1330 | ||
f0fba2ad LG |
1331 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) |
1332 | { | |
1333 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1334 | struct snd_soc_codec *codec = rtd->codec; | |
1335 | struct snd_soc_platform *platform = rtd->platform; | |
1336 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1337 | int err; | |
1338 | ||
1339 | /* unregister the rtd device */ | |
1340 | if (rtd->dev_registered) { | |
1341 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
589c3563 | 1342 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
f0fba2ad LG |
1343 | device_unregister(&rtd->dev); |
1344 | rtd->dev_registered = 0; | |
1345 | } | |
1346 | ||
1347 | /* remove the CODEC DAI */ | |
1348 | if (codec_dai && codec_dai->probed) { | |
1349 | if (codec_dai->driver->remove) { | |
1350 | err = codec_dai->driver->remove(codec_dai); | |
1351 | if (err < 0) | |
1352 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1353 | } |
f0fba2ad LG |
1354 | codec_dai->probed = 0; |
1355 | list_del(&codec_dai->card_list); | |
1356 | } | |
6b05eda6 | 1357 | |
f0fba2ad LG |
1358 | /* remove the platform */ |
1359 | if (platform && platform->probed) { | |
1360 | if (platform->driver->remove) { | |
1361 | err = platform->driver->remove(platform); | |
1362 | if (err < 0) | |
1363 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1364 | } | |
1365 | platform->probed = 0; | |
1366 | list_del(&platform->card_list); | |
1367 | module_put(platform->dev->driver->owner); | |
1368 | } | |
435c5e25 | 1369 | |
f0fba2ad | 1370 | /* remove the CODEC */ |
589c3563 JN |
1371 | if (codec && codec->probed) |
1372 | soc_remove_codec(codec); | |
db2a4165 | 1373 | |
f0fba2ad LG |
1374 | /* remove the cpu_dai */ |
1375 | if (cpu_dai && cpu_dai->probed) { | |
1376 | if (cpu_dai->driver->remove) { | |
1377 | err = cpu_dai->driver->remove(cpu_dai); | |
1378 | if (err < 0) | |
1379 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1380 | } |
f0fba2ad LG |
1381 | cpu_dai->probed = 0; |
1382 | list_del(&cpu_dai->card_list); | |
1383 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1384 | } |
f0fba2ad | 1385 | } |
db2a4165 | 1386 | |
ead9b919 JN |
1387 | static void soc_set_name_prefix(struct snd_soc_card *card, |
1388 | struct snd_soc_codec *codec) | |
1389 | { | |
1390 | int i; | |
1391 | ||
ff819b83 | 1392 | if (card->codec_conf == NULL) |
ead9b919 JN |
1393 | return; |
1394 | ||
ff819b83 DP |
1395 | for (i = 0; i < card->num_configs; i++) { |
1396 | struct snd_soc_codec_conf *map = &card->codec_conf[i]; | |
ead9b919 JN |
1397 | if (map->dev_name && !strcmp(codec->name, map->dev_name)) { |
1398 | codec->name_prefix = map->name_prefix; | |
1399 | break; | |
1400 | } | |
1401 | } | |
1402 | } | |
1403 | ||
589c3563 JN |
1404 | static int soc_probe_codec(struct snd_soc_card *card, |
1405 | struct snd_soc_codec *codec) | |
1406 | { | |
1407 | int ret = 0; | |
1408 | ||
1409 | codec->card = card; | |
1410 | codec->dapm.card = card; | |
1411 | soc_set_name_prefix(card, codec); | |
1412 | ||
1413 | if (codec->driver->probe) { | |
1414 | ret = codec->driver->probe(codec); | |
1415 | if (ret < 0) { | |
1416 | dev_err(codec->dev, | |
1417 | "asoc: failed to probe CODEC %s: %d\n", | |
1418 | codec->name, ret); | |
1419 | return ret; | |
1420 | } | |
1421 | } | |
1422 | ||
1423 | soc_init_codec_debugfs(codec); | |
1424 | ||
1425 | /* mark codec as probed and add to card codec list */ | |
f6c2ed5d HP |
1426 | if (!try_module_get(codec->dev->driver->owner)) |
1427 | return -ENODEV; | |
1428 | ||
589c3563 JN |
1429 | codec->probed = 1; |
1430 | list_add(&codec->card_list, &card->codec_dev_list); | |
7be31be8 | 1431 | list_add(&codec->dapm.list, &card->dapm_list); |
589c3563 JN |
1432 | |
1433 | return ret; | |
1434 | } | |
1435 | ||
f0fba2ad LG |
1436 | static void rtd_release(struct device *dev) {} |
1437 | ||
589c3563 JN |
1438 | static int soc_post_component_init(struct snd_soc_card *card, |
1439 | struct snd_soc_codec *codec, | |
1440 | int num, int dailess) | |
1441 | { | |
1442 | struct snd_soc_dai_link *dai_link = NULL; | |
1443 | struct snd_soc_aux_dev *aux_dev = NULL; | |
1444 | struct snd_soc_pcm_runtime *rtd; | |
1445 | const char *temp, *name; | |
1446 | int ret = 0; | |
1447 | ||
1448 | if (!dailess) { | |
1449 | dai_link = &card->dai_link[num]; | |
1450 | rtd = &card->rtd[num]; | |
1451 | name = dai_link->name; | |
1452 | } else { | |
1453 | aux_dev = &card->aux_dev[num]; | |
1454 | rtd = &card->rtd_aux[num]; | |
1455 | name = aux_dev->name; | |
1456 | } | |
1457 | ||
1458 | /* machine controls, routes and widgets are not prefixed */ | |
1459 | temp = codec->name_prefix; | |
1460 | codec->name_prefix = NULL; | |
1461 | ||
1462 | /* do machine specific initialization */ | |
1463 | if (!dailess && dai_link->init) | |
1464 | ret = dai_link->init(rtd); | |
1465 | else if (dailess && aux_dev->init) | |
1466 | ret = aux_dev->init(&codec->dapm); | |
1467 | if (ret < 0) { | |
1468 | dev_err(card->dev, "asoc: failed to init %s: %d\n", name, ret); | |
1469 | return ret; | |
1470 | } | |
1471 | codec->name_prefix = temp; | |
1472 | ||
1473 | /* Make sure all DAPM widgets are instantiated */ | |
1474 | snd_soc_dapm_new_widgets(&codec->dapm); | |
1475 | snd_soc_dapm_sync(&codec->dapm); | |
1476 | ||
1477 | /* register the rtd device */ | |
1478 | rtd->codec = codec; | |
1479 | rtd->card = card; | |
1480 | rtd->dev.parent = card->dev; | |
1481 | rtd->dev.release = rtd_release; | |
1482 | rtd->dev.init_name = name; | |
1483 | ret = device_register(&rtd->dev); | |
1484 | if (ret < 0) { | |
1485 | dev_err(card->dev, | |
1486 | "asoc: failed to register runtime device: %d\n", ret); | |
1487 | return ret; | |
1488 | } | |
1489 | rtd->dev_registered = 1; | |
1490 | ||
1491 | /* add DAPM sysfs entries for this codec */ | |
1492 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1493 | if (ret < 0) | |
1494 | dev_err(codec->dev, | |
1495 | "asoc: failed to add codec dapm sysfs entries: %d\n", | |
1496 | ret); | |
1497 | ||
1498 | /* add codec sysfs entries */ | |
1499 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1500 | if (ret < 0) | |
1501 | dev_err(codec->dev, | |
1502 | "asoc: failed to add codec sysfs files: %d\n", ret); | |
1503 | ||
1504 | return 0; | |
1505 | } | |
1506 | ||
f0fba2ad LG |
1507 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) |
1508 | { | |
1509 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1510 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1511 | struct snd_soc_codec *codec = rtd->codec; | |
1512 | struct snd_soc_platform *platform = rtd->platform; | |
1513 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1514 | int ret; | |
1515 | ||
1516 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1517 | ||
1518 | /* config components */ | |
1519 | codec_dai->codec = codec; | |
f0fba2ad | 1520 | cpu_dai->platform = platform; |
f0fba2ad LG |
1521 | codec_dai->card = card; |
1522 | cpu_dai->card = card; | |
1523 | ||
1524 | /* set default power off timeout */ | |
1525 | rtd->pmdown_time = pmdown_time; | |
1526 | ||
1527 | /* probe the cpu_dai */ | |
1528 | if (!cpu_dai->probed) { | |
1529 | if (cpu_dai->driver->probe) { | |
1530 | ret = cpu_dai->driver->probe(cpu_dai); | |
1531 | if (ret < 0) { | |
1532 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1533 | cpu_dai->name); | |
1534 | return ret; | |
1535 | } | |
1536 | } | |
1537 | cpu_dai->probed = 1; | |
1538 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1539 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1540 | } |
1541 | ||
f0fba2ad LG |
1542 | /* probe the CODEC */ |
1543 | if (!codec->probed) { | |
589c3563 JN |
1544 | ret = soc_probe_codec(card, codec); |
1545 | if (ret < 0) | |
1546 | return ret; | |
db2a4165 FM |
1547 | } |
1548 | ||
f0fba2ad LG |
1549 | /* probe the platform */ |
1550 | if (!platform->probed) { | |
1551 | if (platform->driver->probe) { | |
1552 | ret = platform->driver->probe(platform); | |
1553 | if (ret < 0) { | |
1554 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1555 | platform->name); | |
1556 | return ret; | |
1557 | } | |
1558 | } | |
1559 | /* mark platform as probed and add to card platform list */ | |
f6c2ed5d HP |
1560 | |
1561 | if (!try_module_get(platform->dev->driver->owner)) | |
1562 | return -ENODEV; | |
1563 | ||
f0fba2ad LG |
1564 | platform->probed = 1; |
1565 | list_add(&platform->card_list, &card->platform_dev_list); | |
1566 | } | |
6ed25978 | 1567 | |
f0fba2ad LG |
1568 | /* probe the CODEC DAI */ |
1569 | if (!codec_dai->probed) { | |
1570 | if (codec_dai->driver->probe) { | |
1571 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1572 | if (ret < 0) { |
f0fba2ad LG |
1573 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1574 | codec_dai->name); | |
1575 | return ret; | |
fe3e78e0 MB |
1576 | } |
1577 | } | |
f0fba2ad LG |
1578 | |
1579 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1580 | codec_dai->probed = 1; | |
1581 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1582 | } |
1583 | ||
f0fba2ad LG |
1584 | /* DAPM dai link stream work */ |
1585 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1586 | ||
589c3563 JN |
1587 | ret = soc_post_component_init(card, codec, num, 0); |
1588 | if (ret) | |
f0fba2ad | 1589 | return ret; |
fe3e78e0 | 1590 | |
f0fba2ad LG |
1591 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); |
1592 | if (ret < 0) | |
1593 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1594 | ||
f0fba2ad LG |
1595 | /* create the pcm */ |
1596 | ret = soc_new_pcm(rtd, num); | |
1597 | if (ret < 0) { | |
1598 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1599 | return ret; | |
1600 | } | |
1601 | ||
1602 | /* add platform data for AC97 devices */ | |
1603 | if (rtd->codec_dai->driver->ac97_control) | |
1604 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1605 | ||
1606 | return 0; | |
1607 | } | |
1608 | ||
fe3e78e0 | 1609 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1610 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1611 | { | |
1612 | int ret; | |
1613 | ||
fe3e78e0 MB |
1614 | /* Only instantiate AC97 if not already done by the adaptor |
1615 | * for the generic AC97 subsystem. | |
1616 | */ | |
f0fba2ad | 1617 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1618 | /* |
1619 | * It is possible that the AC97 device is already registered to | |
1620 | * the device subsystem. This happens when the device is created | |
1621 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1622 | * is the generic AC97 glue but others migh emerge. | |
1623 | * | |
1624 | * In those cases we don't try to register the device again. | |
1625 | */ | |
1626 | if (!rtd->codec->ac97_created) | |
1627 | return 0; | |
f0fba2ad LG |
1628 | |
1629 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1630 | if (ret < 0) { |
1631 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1632 | return ret; |
fe3e78e0 | 1633 | } |
f0fba2ad LG |
1634 | |
1635 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1636 | } |
f0fba2ad LG |
1637 | return 0; |
1638 | } | |
1639 | ||
1640 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1641 | { | |
1642 | if (codec->ac97_registered) { | |
1643 | soc_ac97_dev_unregister(codec); | |
1644 | codec->ac97_registered = 0; | |
1645 | } | |
1646 | } | |
fe3e78e0 MB |
1647 | #endif |
1648 | ||
2eea392d JN |
1649 | static int soc_probe_aux_dev(struct snd_soc_card *card, int num) |
1650 | { | |
1651 | struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num]; | |
2eea392d | 1652 | struct snd_soc_codec *codec; |
676ad98a | 1653 | int ret = -ENODEV; |
2eea392d JN |
1654 | |
1655 | /* find CODEC from registered CODECs*/ | |
1656 | list_for_each_entry(codec, &codec_list, list) { | |
1657 | if (!strcmp(codec->name, aux_dev->codec_name)) { | |
1658 | if (codec->probed) { | |
1659 | dev_err(codec->dev, | |
1660 | "asoc: codec already probed"); | |
1661 | ret = -EBUSY; | |
1662 | goto out; | |
1663 | } | |
676ad98a | 1664 | goto found; |
2eea392d JN |
1665 | } |
1666 | } | |
676ad98a JN |
1667 | /* codec not found */ |
1668 | dev_err(card->dev, "asoc: codec %s not found", aux_dev->codec_name); | |
1669 | goto out; | |
2eea392d | 1670 | |
676ad98a | 1671 | found: |
2eea392d JN |
1672 | if (!try_module_get(codec->dev->driver->owner)) |
1673 | return -ENODEV; | |
1674 | ||
589c3563 | 1675 | ret = soc_probe_codec(card, codec); |
2eea392d | 1676 | if (ret < 0) |
589c3563 | 1677 | return ret; |
2eea392d | 1678 | |
589c3563 | 1679 | ret = soc_post_component_init(card, codec, num, 1); |
2eea392d JN |
1680 | |
1681 | out: | |
1682 | return ret; | |
1683 | } | |
1684 | ||
1685 | static void soc_remove_aux_dev(struct snd_soc_card *card, int num) | |
1686 | { | |
1687 | struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num]; | |
1688 | struct snd_soc_codec *codec = rtd->codec; | |
2eea392d JN |
1689 | |
1690 | /* unregister the rtd device */ | |
1691 | if (rtd->dev_registered) { | |
589c3563 | 1692 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); |
2eea392d JN |
1693 | device_unregister(&rtd->dev); |
1694 | rtd->dev_registered = 0; | |
1695 | } | |
1696 | ||
589c3563 JN |
1697 | if (codec && codec->probed) |
1698 | soc_remove_codec(codec); | |
2eea392d JN |
1699 | } |
1700 | ||
fdf0f54d DP |
1701 | static int snd_soc_init_codec_cache(struct snd_soc_codec *codec, |
1702 | enum snd_soc_compress_type compress_type) | |
1703 | { | |
1704 | int ret; | |
1705 | ||
1706 | if (codec->cache_init) | |
1707 | return 0; | |
1708 | ||
1709 | /* override the compress_type if necessary */ | |
1710 | if (compress_type && codec->compress_type != compress_type) | |
1711 | codec->compress_type = compress_type; | |
fdf0f54d DP |
1712 | ret = snd_soc_cache_init(codec); |
1713 | if (ret < 0) { | |
1714 | dev_err(codec->dev, "Failed to set cache compression type: %d\n", | |
1715 | ret); | |
1716 | return ret; | |
1717 | } | |
1718 | codec->cache_init = 1; | |
1719 | return 0; | |
1720 | } | |
1721 | ||
f0fba2ad LG |
1722 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1723 | { | |
1724 | struct platform_device *pdev = to_platform_device(card->dev); | |
fdf0f54d DP |
1725 | struct snd_soc_codec *codec; |
1726 | struct snd_soc_codec_conf *codec_conf; | |
1727 | enum snd_soc_compress_type compress_type; | |
f0fba2ad | 1728 | int ret, i; |
fe3e78e0 | 1729 | |
f0fba2ad | 1730 | mutex_lock(&card->mutex); |
dbe21408 | 1731 | |
f0fba2ad LG |
1732 | if (card->instantiated) { |
1733 | mutex_unlock(&card->mutex); | |
1734 | return; | |
1735 | } | |
fe3e78e0 | 1736 | |
f0fba2ad LG |
1737 | /* bind DAIs */ |
1738 | for (i = 0; i < card->num_links; i++) | |
1739 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1740 | |
f0fba2ad LG |
1741 | /* bind completed ? */ |
1742 | if (card->num_rtd != card->num_links) { | |
1743 | mutex_unlock(&card->mutex); | |
1744 | return; | |
1745 | } | |
435c5e25 | 1746 | |
fdf0f54d DP |
1747 | /* initialize the register cache for each available codec */ |
1748 | list_for_each_entry(codec, &codec_list, list) { | |
1749 | if (codec->cache_init) | |
1750 | continue; | |
1751 | /* check to see if we need to override the compress_type */ | |
1752 | for (i = 0; i < card->num_configs; ++i) { | |
1753 | codec_conf = &card->codec_conf[i]; | |
1754 | if (!strcmp(codec->name, codec_conf->dev_name)) { | |
1755 | compress_type = codec_conf->compress_type; | |
1756 | if (compress_type && compress_type | |
1757 | != codec->compress_type) | |
1758 | break; | |
1759 | } | |
1760 | } | |
1761 | if (i == card->num_configs) { | |
1762 | /* no need to override the compress_type so | |
1763 | * go ahead and do the standard thing */ | |
1764 | ret = snd_soc_init_codec_cache(codec, 0); | |
1765 | if (ret < 0) { | |
1766 | mutex_unlock(&card->mutex); | |
1767 | return; | |
1768 | } | |
1769 | continue; | |
1770 | } | |
1771 | /* override the compress_type with the one supplied in | |
1772 | * the machine driver */ | |
1773 | ret = snd_soc_init_codec_cache(codec, compress_type); | |
1774 | if (ret < 0) { | |
1775 | mutex_unlock(&card->mutex); | |
1776 | return; | |
1777 | } | |
1778 | } | |
1779 | ||
f0fba2ad LG |
1780 | /* card bind complete so register a sound card */ |
1781 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1782 | card->owner, 0, &card->snd_card); | |
1783 | if (ret < 0) { | |
1784 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1785 | card->name); | |
1786 | mutex_unlock(&card->mutex); | |
1787 | return; | |
1788 | } | |
1789 | card->snd_card->dev = card->dev; | |
1790 | ||
1791 | #ifdef CONFIG_PM | |
1792 | /* deferred resume work */ | |
1793 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1794 | #endif | |
db2a4165 | 1795 | |
f0fba2ad LG |
1796 | /* initialise the sound card only once */ |
1797 | if (card->probe) { | |
1798 | ret = card->probe(pdev); | |
1799 | if (ret < 0) | |
1800 | goto card_probe_error; | |
1801 | } | |
fe3e78e0 | 1802 | |
f0fba2ad LG |
1803 | for (i = 0; i < card->num_links; i++) { |
1804 | ret = soc_probe_dai_link(card, i); | |
1805 | if (ret < 0) { | |
321de0d0 MB |
1806 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1807 | card->name, ret); | |
f0fba2ad LG |
1808 | goto probe_dai_err; |
1809 | } | |
1810 | } | |
db2a4165 | 1811 | |
2eea392d JN |
1812 | for (i = 0; i < card->num_aux_devs; i++) { |
1813 | ret = soc_probe_aux_dev(card, i); | |
1814 | if (ret < 0) { | |
1815 | pr_err("asoc: failed to add auxiliary devices %s: %d\n", | |
1816 | card->name, ret); | |
1817 | goto probe_aux_dev_err; | |
1818 | } | |
1819 | } | |
1820 | ||
f0fba2ad LG |
1821 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1822 | "%s", card->name); | |
1823 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1824 | "%s", card->name); | |
1825 | ||
1826 | ret = snd_card_register(card->snd_card); | |
1827 | if (ret < 0) { | |
1828 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
6b3ed785 | 1829 | goto probe_aux_dev_err; |
db2a4165 FM |
1830 | } |
1831 | ||
f0fba2ad LG |
1832 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1833 | /* register any AC97 codecs */ | |
1834 | for (i = 0; i < card->num_rtd; i++) { | |
6b3ed785 AL |
1835 | ret = soc_register_ac97_dai_link(&card->rtd[i]); |
1836 | if (ret < 0) { | |
1837 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1838 | while (--i >= 0) | |
7d8316df | 1839 | soc_unregister_ac97_dai_link(card->rtd[i].codec); |
6b3ed785 | 1840 | goto probe_aux_dev_err; |
f0fba2ad | 1841 | } |
6b3ed785 | 1842 | } |
f0fba2ad LG |
1843 | #endif |
1844 | ||
1845 | card->instantiated = 1; | |
1846 | mutex_unlock(&card->mutex); | |
1847 | return; | |
1848 | ||
2eea392d JN |
1849 | probe_aux_dev_err: |
1850 | for (i = 0; i < card->num_aux_devs; i++) | |
1851 | soc_remove_aux_dev(card, i); | |
1852 | ||
f0fba2ad LG |
1853 | probe_dai_err: |
1854 | for (i = 0; i < card->num_links; i++) | |
1855 | soc_remove_dai_link(card, i); | |
1856 | ||
1857 | card_probe_error: | |
87506549 MB |
1858 | if (card->remove) |
1859 | card->remove(pdev); | |
f0fba2ad LG |
1860 | |
1861 | snd_card_free(card->snd_card); | |
1862 | ||
1863 | mutex_unlock(&card->mutex); | |
435c5e25 | 1864 | } |
db2a4165 | 1865 | |
435c5e25 | 1866 | /* |
421f91d2 | 1867 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1868 | * client_mutex. |
1869 | */ | |
1870 | static void snd_soc_instantiate_cards(void) | |
1871 | { | |
1872 | struct snd_soc_card *card; | |
1873 | list_for_each_entry(card, &card_list, list) | |
1874 | snd_soc_instantiate_card(card); | |
1875 | } | |
1876 | ||
1877 | /* probes a new socdev */ | |
1878 | static int soc_probe(struct platform_device *pdev) | |
1879 | { | |
f0fba2ad | 1880 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1881 | int ret = 0; |
435c5e25 MB |
1882 | |
1883 | /* Bodge while we unpick instantiation */ | |
1884 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1885 | INIT_LIST_HEAD(&card->dai_dev_list); |
1886 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1887 | INIT_LIST_HEAD(&card->platform_dev_list); | |
97c866de | 1888 | INIT_LIST_HEAD(&card->widgets); |
8ddab3f5 | 1889 | INIT_LIST_HEAD(&card->paths); |
7be31be8 | 1890 | INIT_LIST_HEAD(&card->dapm_list); |
f0fba2ad | 1891 | |
a6052154 JN |
1892 | soc_init_card_debugfs(card); |
1893 | ||
435c5e25 MB |
1894 | ret = snd_soc_register_card(card); |
1895 | if (ret != 0) { | |
1896 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1897 | return ret; | |
1898 | } | |
1899 | ||
1900 | return 0; | |
db2a4165 FM |
1901 | } |
1902 | ||
1903 | /* removes a socdev */ | |
1904 | static int soc_remove(struct platform_device *pdev) | |
1905 | { | |
f0fba2ad | 1906 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1907 | int i; |
db2a4165 | 1908 | |
f0fba2ad | 1909 | if (card->instantiated) { |
914dc182 | 1910 | |
f0fba2ad LG |
1911 | /* make sure any delayed work runs */ |
1912 | for (i = 0; i < card->num_rtd; i++) { | |
1913 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1914 | flush_delayed_work_sync(&rtd->delayed_work); |
b2dfa62c | 1915 | } |
db2a4165 | 1916 | |
2eea392d JN |
1917 | /* remove auxiliary devices */ |
1918 | for (i = 0; i < card->num_aux_devs; i++) | |
1919 | soc_remove_aux_dev(card, i); | |
1920 | ||
f0fba2ad LG |
1921 | /* remove and free each DAI */ |
1922 | for (i = 0; i < card->num_rtd; i++) | |
1923 | soc_remove_dai_link(card, i); | |
1924 | ||
a6052154 JN |
1925 | soc_cleanup_card_debugfs(card); |
1926 | ||
f0fba2ad | 1927 | /* remove the card */ |
b2dfa62c GL |
1928 | if (card->remove) |
1929 | card->remove(pdev); | |
db2a4165 | 1930 | |
f0fba2ad LG |
1931 | kfree(card->rtd); |
1932 | snd_card_free(card->snd_card); | |
1933 | } | |
c5af3a2e | 1934 | snd_soc_unregister_card(card); |
db2a4165 FM |
1935 | return 0; |
1936 | } | |
1937 | ||
416356fc | 1938 | static int soc_poweroff(struct device *dev) |
51737470 | 1939 | { |
416356fc | 1940 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1941 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1942 | int i; | |
51737470 MB |
1943 | |
1944 | if (!card->instantiated) | |
416356fc | 1945 | return 0; |
51737470 MB |
1946 | |
1947 | /* Flush out pmdown_time work - we actually do want to run it | |
1948 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1949 | for (i = 0; i < card->num_rtd; i++) { |
1950 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
5b84ba26 | 1951 | flush_delayed_work_sync(&rtd->delayed_work); |
f0fba2ad | 1952 | } |
51737470 | 1953 | |
f0fba2ad | 1954 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1955 | |
1956 | return 0; | |
51737470 MB |
1957 | } |
1958 | ||
47145210 | 1959 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1960 | .suspend = soc_suspend, |
1961 | .resume = soc_resume, | |
1962 | .poweroff = soc_poweroff, | |
1963 | }; | |
1964 | ||
db2a4165 FM |
1965 | /* ASoC platform driver */ |
1966 | static struct platform_driver soc_driver = { | |
1967 | .driver = { | |
1968 | .name = "soc-audio", | |
8b45a209 | 1969 | .owner = THIS_MODULE, |
416356fc | 1970 | .pm = &soc_pm_ops, |
db2a4165 FM |
1971 | }, |
1972 | .probe = soc_probe, | |
1973 | .remove = soc_remove, | |
db2a4165 FM |
1974 | }; |
1975 | ||
1976 | /* create a new pcm */ | |
f0fba2ad LG |
1977 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1978 | { | |
1979 | struct snd_soc_codec *codec = rtd->codec; | |
1980 | struct snd_soc_platform *platform = rtd->platform; | |
1981 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1982 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1983 | struct snd_pcm *pcm; |
1984 | char new_name[64]; | |
1985 | int ret = 0, playback = 0, capture = 0; | |
1986 | ||
db2a4165 | 1987 | /* check client and interface hw capabilities */ |
40ca1142 | 1988 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1989 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1990 | |
f0fba2ad | 1991 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1992 | playback = 1; |
f0fba2ad | 1993 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1994 | capture = 1; |
1995 | ||
f0fba2ad LG |
1996 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1997 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1998 | num, playback, capture, &pcm); | |
db2a4165 | 1999 | if (ret < 0) { |
f0fba2ad | 2000 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
2001 | return ret; |
2002 | } | |
2003 | ||
f0fba2ad | 2004 | rtd->pcm = pcm; |
db2a4165 | 2005 | pcm->private_data = rtd; |
f0fba2ad LG |
2006 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
2007 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
2008 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
2009 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
2010 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
2011 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
2012 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
2013 | |
2014 | if (playback) | |
2015 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
2016 | ||
2017 | if (capture) | |
2018 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
2019 | ||
f0fba2ad | 2020 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
2021 | if (ret < 0) { |
2022 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
2023 | return ret; |
2024 | } | |
2025 | ||
f0fba2ad | 2026 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
2027 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
2028 | cpu_dai->name); | |
2029 | return ret; | |
2030 | } | |
2031 | ||
096e49d5 MB |
2032 | /** |
2033 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
2034 | * | |
2035 | * @codec: CODEC to query. | |
2036 | * @reg: Register to query. | |
2037 | * | |
2038 | * Boolean function indiciating if a CODEC register is volatile. | |
2039 | */ | |
2040 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
2041 | { | |
f0fba2ad LG |
2042 | if (codec->driver->volatile_register) |
2043 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
2044 | else |
2045 | return 0; | |
2046 | } | |
2047 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
2048 | ||
db2a4165 FM |
2049 | /** |
2050 | * snd_soc_new_ac97_codec - initailise AC97 device | |
2051 | * @codec: audio codec | |
2052 | * @ops: AC97 bus operations | |
2053 | * @num: AC97 codec number | |
2054 | * | |
2055 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
2056 | */ | |
2057 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
2058 | struct snd_ac97_bus_ops *ops, int num) | |
2059 | { | |
2060 | mutex_lock(&codec->mutex); | |
2061 | ||
2062 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
2063 | if (codec->ac97 == NULL) { | |
2064 | mutex_unlock(&codec->mutex); | |
2065 | return -ENOMEM; | |
2066 | } | |
2067 | ||
2068 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
2069 | if (codec->ac97->bus == NULL) { | |
2070 | kfree(codec->ac97); | |
2071 | codec->ac97 = NULL; | |
2072 | mutex_unlock(&codec->mutex); | |
2073 | return -ENOMEM; | |
2074 | } | |
2075 | ||
2076 | codec->ac97->bus->ops = ops; | |
2077 | codec->ac97->num = num; | |
0562f788 MW |
2078 | |
2079 | /* | |
2080 | * Mark the AC97 device to be created by us. This way we ensure that the | |
2081 | * device will be registered with the device subsystem later on. | |
2082 | */ | |
2083 | codec->ac97_created = 1; | |
2084 | ||
db2a4165 FM |
2085 | mutex_unlock(&codec->mutex); |
2086 | return 0; | |
2087 | } | |
2088 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
2089 | ||
2090 | /** | |
2091 | * snd_soc_free_ac97_codec - free AC97 codec device | |
2092 | * @codec: audio codec | |
2093 | * | |
2094 | * Frees AC97 codec device resources. | |
2095 | */ | |
2096 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
2097 | { | |
2098 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
2099 | #ifdef CONFIG_SND_SOC_AC97_BUS |
2100 | soc_unregister_ac97_dai_link(codec); | |
2101 | #endif | |
db2a4165 FM |
2102 | kfree(codec->ac97->bus); |
2103 | kfree(codec->ac97); | |
2104 | codec->ac97 = NULL; | |
0562f788 | 2105 | codec->ac97_created = 0; |
db2a4165 FM |
2106 | mutex_unlock(&codec->mutex); |
2107 | } | |
2108 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
2109 | ||
c3753707 MB |
2110 | unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) |
2111 | { | |
2112 | unsigned int ret; | |
2113 | ||
c3acec26 | 2114 | ret = codec->read(codec, reg); |
c3753707 | 2115 | dev_dbg(codec->dev, "read %x => %x\n", reg, ret); |
a8b1d34f | 2116 | trace_snd_soc_reg_read(codec, reg, ret); |
c3753707 MB |
2117 | |
2118 | return ret; | |
2119 | } | |
2120 | EXPORT_SYMBOL_GPL(snd_soc_read); | |
2121 | ||
2122 | unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
2123 | unsigned int reg, unsigned int val) | |
2124 | { | |
2125 | dev_dbg(codec->dev, "write %x = %x\n", reg, val); | |
a8b1d34f | 2126 | trace_snd_soc_reg_write(codec, reg, val); |
c3acec26 | 2127 | return codec->write(codec, reg, val); |
c3753707 MB |
2128 | } |
2129 | EXPORT_SYMBOL_GPL(snd_soc_write); | |
2130 | ||
db2a4165 FM |
2131 | /** |
2132 | * snd_soc_update_bits - update codec register bits | |
2133 | * @codec: audio codec | |
2134 | * @reg: codec register | |
2135 | * @mask: register mask | |
2136 | * @value: new value | |
2137 | * | |
2138 | * Writes new register value. | |
2139 | * | |
180c329d | 2140 | * Returns 1 for change, 0 for no change, or negative error code. |
db2a4165 FM |
2141 | */ |
2142 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2143 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2144 | { |
2145 | int change; | |
46f5822f | 2146 | unsigned int old, new; |
180c329d TT |
2147 | int ret; |
2148 | ||
2149 | ret = snd_soc_read(codec, reg); | |
2150 | if (ret < 0) | |
2151 | return ret; | |
db2a4165 | 2152 | |
180c329d | 2153 | old = ret; |
db2a4165 FM |
2154 | new = (old & ~mask) | value; |
2155 | change = old != new; | |
180c329d TT |
2156 | if (change) { |
2157 | ret = snd_soc_write(codec, reg, new); | |
2158 | if (ret < 0) | |
2159 | return ret; | |
2160 | } | |
db2a4165 | 2161 | |
db2a4165 FM |
2162 | return change; |
2163 | } | |
2164 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
2165 | ||
6c508c62 EN |
2166 | /** |
2167 | * snd_soc_update_bits_locked - update codec register bits | |
2168 | * @codec: audio codec | |
2169 | * @reg: codec register | |
2170 | * @mask: register mask | |
2171 | * @value: new value | |
2172 | * | |
2173 | * Writes new register value, and takes the codec mutex. | |
2174 | * | |
2175 | * Returns 1 for change else 0. | |
2176 | */ | |
dd1b3d53 MB |
2177 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
2178 | unsigned short reg, unsigned int mask, | |
2179 | unsigned int value) | |
6c508c62 EN |
2180 | { |
2181 | int change; | |
2182 | ||
2183 | mutex_lock(&codec->mutex); | |
2184 | change = snd_soc_update_bits(codec, reg, mask, value); | |
2185 | mutex_unlock(&codec->mutex); | |
2186 | ||
2187 | return change; | |
2188 | } | |
dd1b3d53 | 2189 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 2190 | |
db2a4165 FM |
2191 | /** |
2192 | * snd_soc_test_bits - test register for change | |
2193 | * @codec: audio codec | |
2194 | * @reg: codec register | |
2195 | * @mask: register mask | |
2196 | * @value: new value | |
2197 | * | |
2198 | * Tests a register with a new value and checks if the new value is | |
2199 | * different from the old value. | |
2200 | * | |
2201 | * Returns 1 for change else 0. | |
2202 | */ | |
2203 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 2204 | unsigned int mask, unsigned int value) |
db2a4165 FM |
2205 | { |
2206 | int change; | |
46f5822f | 2207 | unsigned int old, new; |
db2a4165 | 2208 | |
db2a4165 FM |
2209 | old = snd_soc_read(codec, reg); |
2210 | new = (old & ~mask) | value; | |
2211 | change = old != new; | |
db2a4165 FM |
2212 | |
2213 | return change; | |
2214 | } | |
2215 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
2216 | ||
db2a4165 FM |
2217 | /** |
2218 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
2219 | * @substream: the pcm substream | |
2220 | * @hw: the hardware parameters | |
2221 | * | |
2222 | * Sets the substream runtime hardware parameters. | |
2223 | */ | |
2224 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
2225 | const struct snd_pcm_hardware *hw) | |
2226 | { | |
2227 | struct snd_pcm_runtime *runtime = substream->runtime; | |
2228 | runtime->hw.info = hw->info; | |
2229 | runtime->hw.formats = hw->formats; | |
2230 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
2231 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
2232 | runtime->hw.periods_min = hw->periods_min; | |
2233 | runtime->hw.periods_max = hw->periods_max; | |
2234 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
2235 | runtime->hw.fifo_size = hw->fifo_size; | |
2236 | return 0; | |
2237 | } | |
2238 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
2239 | ||
2240 | /** | |
2241 | * snd_soc_cnew - create new control | |
2242 | * @_template: control template | |
2243 | * @data: control private data | |
ac11a2b3 | 2244 | * @long_name: control long name |
db2a4165 FM |
2245 | * |
2246 | * Create a new mixer control from a template control. | |
2247 | * | |
2248 | * Returns 0 for success, else error. | |
2249 | */ | |
2250 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
2251 | void *data, char *long_name) | |
2252 | { | |
2253 | struct snd_kcontrol_new template; | |
2254 | ||
2255 | memcpy(&template, _template, sizeof(template)); | |
2256 | if (long_name) | |
2257 | template.name = long_name; | |
db2a4165 FM |
2258 | template.index = 0; |
2259 | ||
2260 | return snd_ctl_new1(&template, data); | |
2261 | } | |
2262 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
2263 | ||
3e8e1952 IM |
2264 | /** |
2265 | * snd_soc_add_controls - add an array of controls to a codec. | |
2266 | * Convienience function to add a list of controls. Many codecs were | |
2267 | * duplicating this code. | |
2268 | * | |
2269 | * @codec: codec to add controls to | |
2270 | * @controls: array of controls to add | |
2271 | * @num_controls: number of elements in the array | |
2272 | * | |
2273 | * Return 0 for success, else error. | |
2274 | */ | |
2275 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
2276 | const struct snd_kcontrol_new *controls, int num_controls) | |
2277 | { | |
f0fba2ad | 2278 | struct snd_card *card = codec->card->snd_card; |
ead9b919 | 2279 | char prefixed_name[44], *name; |
3e8e1952 IM |
2280 | int err, i; |
2281 | ||
2282 | for (i = 0; i < num_controls; i++) { | |
2283 | const struct snd_kcontrol_new *control = &controls[i]; | |
ead9b919 JN |
2284 | if (codec->name_prefix) { |
2285 | snprintf(prefixed_name, sizeof(prefixed_name), "%s %s", | |
2286 | codec->name_prefix, control->name); | |
2287 | name = prefixed_name; | |
2288 | } else { | |
2289 | name = control->name; | |
2290 | } | |
2291 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, name)); | |
3e8e1952 | 2292 | if (err < 0) { |
082100dc | 2293 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
ead9b919 | 2294 | codec->name, name, err); |
3e8e1952 IM |
2295 | return err; |
2296 | } | |
2297 | } | |
2298 | ||
2299 | return 0; | |
2300 | } | |
2301 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2302 | ||
db2a4165 FM |
2303 | /** |
2304 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2305 | * @kcontrol: mixer control | |
2306 | * @uinfo: control element information | |
2307 | * | |
2308 | * Callback to provide information about a double enumerated | |
2309 | * mixer control. | |
2310 | * | |
2311 | * Returns 0 for success. | |
2312 | */ | |
2313 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2314 | struct snd_ctl_elem_info *uinfo) | |
2315 | { | |
2316 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2317 | ||
2318 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2319 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2320 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2321 | |
f8ba0b7b JS |
2322 | if (uinfo->value.enumerated.item > e->max - 1) |
2323 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2324 | strcpy(uinfo->value.enumerated.name, |
2325 | e->texts[uinfo->value.enumerated.item]); | |
2326 | return 0; | |
2327 | } | |
2328 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2329 | ||
2330 | /** | |
2331 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2332 | * @kcontrol: mixer control | |
ac11a2b3 | 2333 | * @ucontrol: control element information |
db2a4165 FM |
2334 | * |
2335 | * Callback to get the value of a double enumerated mixer. | |
2336 | * | |
2337 | * Returns 0 for success. | |
2338 | */ | |
2339 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2340 | struct snd_ctl_elem_value *ucontrol) | |
2341 | { | |
2342 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2343 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2344 | unsigned int val, bitmask; |
db2a4165 | 2345 | |
f8ba0b7b | 2346 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2347 | ; |
2348 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2349 | ucontrol->value.enumerated.item[0] |
2350 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2351 | if (e->shift_l != e->shift_r) |
2352 | ucontrol->value.enumerated.item[1] = | |
2353 | (val >> e->shift_r) & (bitmask - 1); | |
2354 | ||
2355 | return 0; | |
2356 | } | |
2357 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2358 | ||
2359 | /** | |
2360 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2361 | * @kcontrol: mixer control | |
ac11a2b3 | 2362 | * @ucontrol: control element information |
db2a4165 FM |
2363 | * |
2364 | * Callback to set the value of a double enumerated mixer. | |
2365 | * | |
2366 | * Returns 0 for success. | |
2367 | */ | |
2368 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2369 | struct snd_ctl_elem_value *ucontrol) | |
2370 | { | |
2371 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2372 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2373 | unsigned int val; |
2374 | unsigned int mask, bitmask; | |
db2a4165 | 2375 | |
f8ba0b7b | 2376 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2377 | ; |
f8ba0b7b | 2378 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2379 | return -EINVAL; |
2380 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2381 | mask = (bitmask - 1) << e->shift_l; | |
2382 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2383 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2384 | return -EINVAL; |
2385 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2386 | mask |= (bitmask - 1) << e->shift_r; | |
2387 | } | |
2388 | ||
6c508c62 | 2389 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2390 | } |
2391 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2392 | ||
2e72f8e3 PU |
2393 | /** |
2394 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2395 | * @kcontrol: mixer control | |
2396 | * @ucontrol: control element information | |
2397 | * | |
2398 | * Callback to get the value of a double semi enumerated mixer. | |
2399 | * | |
2400 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2401 | * used for handling bitfield coded enumeration for example. | |
2402 | * | |
2403 | * Returns 0 for success. | |
2404 | */ | |
2405 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2406 | struct snd_ctl_elem_value *ucontrol) | |
2407 | { | |
2408 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2409 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2410 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2411 | |
2412 | reg_val = snd_soc_read(codec, e->reg); | |
2413 | val = (reg_val >> e->shift_l) & e->mask; | |
2414 | for (mux = 0; mux < e->max; mux++) { | |
2415 | if (val == e->values[mux]) | |
2416 | break; | |
2417 | } | |
2418 | ucontrol->value.enumerated.item[0] = mux; | |
2419 | if (e->shift_l != e->shift_r) { | |
2420 | val = (reg_val >> e->shift_r) & e->mask; | |
2421 | for (mux = 0; mux < e->max; mux++) { | |
2422 | if (val == e->values[mux]) | |
2423 | break; | |
2424 | } | |
2425 | ucontrol->value.enumerated.item[1] = mux; | |
2426 | } | |
2427 | ||
2428 | return 0; | |
2429 | } | |
2430 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2431 | ||
2432 | /** | |
2433 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2434 | * @kcontrol: mixer control | |
2435 | * @ucontrol: control element information | |
2436 | * | |
2437 | * Callback to set the value of a double semi enumerated mixer. | |
2438 | * | |
2439 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2440 | * used for handling bitfield coded enumeration for example. | |
2441 | * | |
2442 | * Returns 0 for success. | |
2443 | */ | |
2444 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2445 | struct snd_ctl_elem_value *ucontrol) | |
2446 | { | |
2447 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2448 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2449 | unsigned int val; |
2450 | unsigned int mask; | |
2e72f8e3 PU |
2451 | |
2452 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2453 | return -EINVAL; | |
2454 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2455 | mask = e->mask << e->shift_l; | |
2456 | if (e->shift_l != e->shift_r) { | |
2457 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2458 | return -EINVAL; | |
2459 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2460 | mask |= e->mask << e->shift_r; | |
2461 | } | |
2462 | ||
6c508c62 | 2463 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2464 | } |
2465 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2466 | ||
db2a4165 FM |
2467 | /** |
2468 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2469 | * @kcontrol: mixer control | |
2470 | * @uinfo: control element information | |
2471 | * | |
2472 | * Callback to provide information about an external enumerated | |
2473 | * single mixer. | |
2474 | * | |
2475 | * Returns 0 for success. | |
2476 | */ | |
2477 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2478 | struct snd_ctl_elem_info *uinfo) | |
2479 | { | |
2480 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2481 | ||
2482 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2483 | uinfo->count = 1; | |
f8ba0b7b | 2484 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2485 | |
f8ba0b7b JS |
2486 | if (uinfo->value.enumerated.item > e->max - 1) |
2487 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2488 | strcpy(uinfo->value.enumerated.name, |
2489 | e->texts[uinfo->value.enumerated.item]); | |
2490 | return 0; | |
2491 | } | |
2492 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2493 | ||
2494 | /** | |
2495 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2496 | * @kcontrol: mixer control | |
2497 | * @uinfo: control element information | |
2498 | * | |
2499 | * Callback to provide information about a single external mixer control. | |
2500 | * | |
2501 | * Returns 0 for success. | |
2502 | */ | |
2503 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2504 | struct snd_ctl_elem_info *uinfo) | |
2505 | { | |
a7a4ac86 PZ |
2506 | int max = kcontrol->private_value; |
2507 | ||
fd5dfad9 | 2508 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2509 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2510 | else | |
2511 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2512 | |
db2a4165 FM |
2513 | uinfo->count = 1; |
2514 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2515 | uinfo->value.integer.max = max; |
db2a4165 FM |
2516 | return 0; |
2517 | } | |
2518 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2519 | ||
db2a4165 FM |
2520 | /** |
2521 | * snd_soc_info_volsw - single mixer info callback | |
2522 | * @kcontrol: mixer control | |
2523 | * @uinfo: control element information | |
2524 | * | |
2525 | * Callback to provide information about a single mixer control. | |
2526 | * | |
2527 | * Returns 0 for success. | |
2528 | */ | |
2529 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2530 | struct snd_ctl_elem_info *uinfo) | |
2531 | { | |
4eaa9819 JS |
2532 | struct soc_mixer_control *mc = |
2533 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2534 | int platform_max; |
762b8df7 | 2535 | unsigned int shift = mc->shift; |
815ecf8d | 2536 | unsigned int rshift = mc->rshift; |
db2a4165 | 2537 | |
d11bb4a9 PU |
2538 | if (!mc->platform_max) |
2539 | mc->platform_max = mc->max; | |
2540 | platform_max = mc->platform_max; | |
2541 | ||
2542 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2543 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2544 | else | |
2545 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2546 | ||
db2a4165 FM |
2547 | uinfo->count = shift == rshift ? 1 : 2; |
2548 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2549 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2550 | return 0; |
2551 | } | |
2552 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2553 | ||
2554 | /** | |
2555 | * snd_soc_get_volsw - single mixer get callback | |
2556 | * @kcontrol: mixer control | |
ac11a2b3 | 2557 | * @ucontrol: control element information |
db2a4165 FM |
2558 | * |
2559 | * Callback to get the value of a single mixer control. | |
2560 | * | |
2561 | * Returns 0 for success. | |
2562 | */ | |
2563 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2564 | struct snd_ctl_elem_value *ucontrol) | |
2565 | { | |
4eaa9819 JS |
2566 | struct soc_mixer_control *mc = |
2567 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2568 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2569 | unsigned int reg = mc->reg; |
2570 | unsigned int shift = mc->shift; | |
2571 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2572 | int max = mc->max; |
815ecf8d JS |
2573 | unsigned int mask = (1 << fls(max)) - 1; |
2574 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2575 | |
2576 | ucontrol->value.integer.value[0] = | |
2577 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2578 | if (shift != rshift) | |
2579 | ucontrol->value.integer.value[1] = | |
2580 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2581 | if (invert) { | |
2582 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2583 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2584 | if (shift != rshift) |
2585 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2586 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2587 | } |
2588 | ||
2589 | return 0; | |
2590 | } | |
2591 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2592 | ||
2593 | /** | |
2594 | * snd_soc_put_volsw - single mixer put callback | |
2595 | * @kcontrol: mixer control | |
ac11a2b3 | 2596 | * @ucontrol: control element information |
db2a4165 FM |
2597 | * |
2598 | * Callback to set the value of a single mixer control. | |
2599 | * | |
2600 | * Returns 0 for success. | |
2601 | */ | |
2602 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2603 | struct snd_ctl_elem_value *ucontrol) | |
2604 | { | |
4eaa9819 JS |
2605 | struct soc_mixer_control *mc = |
2606 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2607 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2608 | unsigned int reg = mc->reg; |
2609 | unsigned int shift = mc->shift; | |
2610 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2611 | int max = mc->max; |
815ecf8d JS |
2612 | unsigned int mask = (1 << fls(max)) - 1; |
2613 | unsigned int invert = mc->invert; | |
46f5822f | 2614 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2615 | |
2616 | val = (ucontrol->value.integer.value[0] & mask); | |
2617 | if (invert) | |
a7a4ac86 | 2618 | val = max - val; |
db2a4165 FM |
2619 | val_mask = mask << shift; |
2620 | val = val << shift; | |
2621 | if (shift != rshift) { | |
2622 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2623 | if (invert) | |
a7a4ac86 | 2624 | val2 = max - val2; |
db2a4165 FM |
2625 | val_mask |= mask << rshift; |
2626 | val |= val2 << rshift; | |
2627 | } | |
6c508c62 | 2628 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2629 | } |
2630 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2631 | ||
2632 | /** | |
2633 | * snd_soc_info_volsw_2r - double mixer info callback | |
2634 | * @kcontrol: mixer control | |
2635 | * @uinfo: control element information | |
2636 | * | |
2637 | * Callback to provide information about a double mixer control that | |
2638 | * spans 2 codec registers. | |
2639 | * | |
2640 | * Returns 0 for success. | |
2641 | */ | |
2642 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2643 | struct snd_ctl_elem_info *uinfo) | |
2644 | { | |
4eaa9819 JS |
2645 | struct soc_mixer_control *mc = |
2646 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2647 | int platform_max; |
a7a4ac86 | 2648 | |
d11bb4a9 PU |
2649 | if (!mc->platform_max) |
2650 | mc->platform_max = mc->max; | |
2651 | platform_max = mc->platform_max; | |
2652 | ||
2653 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2654 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2655 | else | |
2656 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2657 | |
db2a4165 FM |
2658 | uinfo->count = 2; |
2659 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2660 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2661 | return 0; |
2662 | } | |
2663 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2664 | ||
2665 | /** | |
2666 | * snd_soc_get_volsw_2r - double mixer get callback | |
2667 | * @kcontrol: mixer control | |
ac11a2b3 | 2668 | * @ucontrol: control element information |
db2a4165 FM |
2669 | * |
2670 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2671 | * | |
2672 | * Returns 0 for success. | |
2673 | */ | |
2674 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2675 | struct snd_ctl_elem_value *ucontrol) | |
2676 | { | |
4eaa9819 JS |
2677 | struct soc_mixer_control *mc = |
2678 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2679 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2680 | unsigned int reg = mc->reg; |
2681 | unsigned int reg2 = mc->rreg; | |
2682 | unsigned int shift = mc->shift; | |
4eaa9819 | 2683 | int max = mc->max; |
46f5822f | 2684 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2685 | unsigned int invert = mc->invert; |
db2a4165 FM |
2686 | |
2687 | ucontrol->value.integer.value[0] = | |
2688 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2689 | ucontrol->value.integer.value[1] = | |
2690 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2691 | if (invert) { | |
2692 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2693 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2694 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2695 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2696 | } |
2697 | ||
2698 | return 0; | |
2699 | } | |
2700 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2701 | ||
2702 | /** | |
2703 | * snd_soc_put_volsw_2r - double mixer set callback | |
2704 | * @kcontrol: mixer control | |
ac11a2b3 | 2705 | * @ucontrol: control element information |
db2a4165 FM |
2706 | * |
2707 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2708 | * | |
2709 | * Returns 0 for success. | |
2710 | */ | |
2711 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2712 | struct snd_ctl_elem_value *ucontrol) | |
2713 | { | |
4eaa9819 JS |
2714 | struct soc_mixer_control *mc = |
2715 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2716 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2717 | unsigned int reg = mc->reg; |
2718 | unsigned int reg2 = mc->rreg; | |
2719 | unsigned int shift = mc->shift; | |
4eaa9819 | 2720 | int max = mc->max; |
815ecf8d JS |
2721 | unsigned int mask = (1 << fls(max)) - 1; |
2722 | unsigned int invert = mc->invert; | |
db2a4165 | 2723 | int err; |
46f5822f | 2724 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2725 | |
2726 | val_mask = mask << shift; | |
2727 | val = (ucontrol->value.integer.value[0] & mask); | |
2728 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2729 | ||
2730 | if (invert) { | |
a7a4ac86 PZ |
2731 | val = max - val; |
2732 | val2 = max - val2; | |
db2a4165 FM |
2733 | } |
2734 | ||
2735 | val = val << shift; | |
2736 | val2 = val2 << shift; | |
2737 | ||
6c508c62 | 2738 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2739 | if (err < 0) |
db2a4165 FM |
2740 | return err; |
2741 | ||
6c508c62 | 2742 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2743 | return err; |
2744 | } | |
2745 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2746 | ||
e13ac2e9 MB |
2747 | /** |
2748 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2749 | * @kcontrol: mixer control | |
2750 | * @uinfo: control element information | |
2751 | * | |
2752 | * Callback to provide information about a signed mixer control. | |
2753 | * | |
2754 | * Returns 0 for success. | |
2755 | */ | |
2756 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2757 | struct snd_ctl_elem_info *uinfo) | |
2758 | { | |
4eaa9819 JS |
2759 | struct soc_mixer_control *mc = |
2760 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2761 | int platform_max; |
4eaa9819 | 2762 | int min = mc->min; |
e13ac2e9 | 2763 | |
d11bb4a9 PU |
2764 | if (!mc->platform_max) |
2765 | mc->platform_max = mc->max; | |
2766 | platform_max = mc->platform_max; | |
2767 | ||
e13ac2e9 MB |
2768 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2769 | uinfo->count = 2; | |
2770 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2771 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2772 | return 0; |
2773 | } | |
2774 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2775 | ||
2776 | /** | |
2777 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2778 | * @kcontrol: mixer control | |
ac11a2b3 | 2779 | * @ucontrol: control element information |
e13ac2e9 MB |
2780 | * |
2781 | * Callback to get the value of a signed mixer control. | |
2782 | * | |
2783 | * Returns 0 for success. | |
2784 | */ | |
2785 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2786 | struct snd_ctl_elem_value *ucontrol) | |
2787 | { | |
4eaa9819 JS |
2788 | struct soc_mixer_control *mc = |
2789 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2790 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2791 | unsigned int reg = mc->reg; |
4eaa9819 | 2792 | int min = mc->min; |
e13ac2e9 MB |
2793 | int val = snd_soc_read(codec, reg); |
2794 | ||
2795 | ucontrol->value.integer.value[0] = | |
2796 | ((signed char)(val & 0xff))-min; | |
2797 | ucontrol->value.integer.value[1] = | |
2798 | ((signed char)((val >> 8) & 0xff))-min; | |
2799 | return 0; | |
2800 | } | |
2801 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2802 | ||
2803 | /** | |
2804 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2805 | * @kcontrol: mixer control | |
ac11a2b3 | 2806 | * @ucontrol: control element information |
e13ac2e9 MB |
2807 | * |
2808 | * Callback to set the value of a signed mixer control. | |
2809 | * | |
2810 | * Returns 0 for success. | |
2811 | */ | |
2812 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2813 | struct snd_ctl_elem_value *ucontrol) | |
2814 | { | |
4eaa9819 JS |
2815 | struct soc_mixer_control *mc = |
2816 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2817 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2818 | unsigned int reg = mc->reg; |
4eaa9819 | 2819 | int min = mc->min; |
46f5822f | 2820 | unsigned int val; |
e13ac2e9 MB |
2821 | |
2822 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2823 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2824 | ||
6c508c62 | 2825 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2826 | } |
2827 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2828 | ||
637d3847 PU |
2829 | /** |
2830 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2831 | * | |
2832 | * @codec: where to look for the control | |
2833 | * @name: Name of the control | |
2834 | * @max: new maximum limit | |
2835 | * | |
2836 | * Return 0 for success, else error. | |
2837 | */ | |
2838 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2839 | const char *name, int max) | |
2840 | { | |
f0fba2ad | 2841 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2842 | struct snd_kcontrol *kctl; |
2843 | struct soc_mixer_control *mc; | |
2844 | int found = 0; | |
2845 | int ret = -EINVAL; | |
2846 | ||
2847 | /* Sanity check for name and max */ | |
2848 | if (unlikely(!name || max <= 0)) | |
2849 | return -EINVAL; | |
2850 | ||
2851 | list_for_each_entry(kctl, &card->controls, list) { | |
2852 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2853 | found = 1; | |
2854 | break; | |
2855 | } | |
2856 | } | |
2857 | if (found) { | |
2858 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2859 | if (max <= mc->max) { | |
d11bb4a9 | 2860 | mc->platform_max = max; |
637d3847 PU |
2861 | ret = 0; |
2862 | } | |
2863 | } | |
2864 | return ret; | |
2865 | } | |
2866 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2867 | ||
b6f4bb38 | 2868 | /** |
2869 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2870 | * mixer info callback | |
2871 | * @kcontrol: mixer control | |
2872 | * @uinfo: control element information | |
2873 | * | |
2874 | * Returns 0 for success. | |
2875 | */ | |
2876 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2877 | struct snd_ctl_elem_info *uinfo) | |
2878 | { | |
2879 | struct soc_mixer_control *mc = | |
2880 | (struct soc_mixer_control *)kcontrol->private_value; | |
2881 | int max = mc->max; | |
2882 | int min = mc->min; | |
2883 | ||
2884 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2885 | uinfo->count = 2; | |
2886 | uinfo->value.integer.min = 0; | |
2887 | uinfo->value.integer.max = max-min; | |
2888 | ||
2889 | return 0; | |
2890 | } | |
2891 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2892 | ||
2893 | /** | |
2894 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2895 | * mixer get callback | |
2896 | * @kcontrol: mixer control | |
2897 | * @uinfo: control element information | |
2898 | * | |
2899 | * Returns 0 for success. | |
2900 | */ | |
2901 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2902 | struct snd_ctl_elem_value *ucontrol) | |
2903 | { | |
2904 | struct soc_mixer_control *mc = | |
2905 | (struct soc_mixer_control *)kcontrol->private_value; | |
2906 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2907 | unsigned int mask = (1<<mc->shift)-1; | |
2908 | int min = mc->min; | |
2909 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2910 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2911 | ||
20630c7f SL |
2912 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2913 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2914 | return 0; |
2915 | } | |
2916 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2917 | ||
2918 | /** | |
2919 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2920 | * mixer put callback | |
2921 | * @kcontrol: mixer control | |
2922 | * @uinfo: control element information | |
2923 | * | |
2924 | * Returns 0 for success. | |
2925 | */ | |
2926 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2927 | struct snd_ctl_elem_value *ucontrol) | |
2928 | { | |
2929 | struct soc_mixer_control *mc = | |
2930 | (struct soc_mixer_control *)kcontrol->private_value; | |
2931 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2932 | unsigned int mask = (1<<mc->shift)-1; | |
2933 | int min = mc->min; | |
2934 | int ret; | |
2935 | unsigned int val, valr, oval, ovalr; | |
2936 | ||
2937 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2938 | val &= mask; | |
2939 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2940 | valr &= mask; | |
2941 | ||
2942 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2943 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2944 | ||
2945 | ret = 0; | |
2946 | if (oval != val) { | |
2947 | ret = snd_soc_write(codec, mc->reg, val); | |
2948 | if (ret < 0) | |
f1df5aec | 2949 | return ret; |
b6f4bb38 | 2950 | } |
2951 | if (ovalr != valr) { | |
2952 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2953 | if (ret < 0) | |
f1df5aec | 2954 | return ret; |
b6f4bb38 | 2955 | } |
2956 | ||
2957 | return 0; | |
2958 | } | |
2959 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2960 | ||
8c6529db LG |
2961 | /** |
2962 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2963 | * @dai: DAI | |
2964 | * @clk_id: DAI specific clock ID | |
2965 | * @freq: new clock frequency in Hz | |
2966 | * @dir: new clock direction - input/output. | |
2967 | * | |
2968 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2969 | */ | |
2970 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2971 | unsigned int freq, int dir) | |
2972 | { | |
f0fba2ad LG |
2973 | if (dai->driver && dai->driver->ops->set_sysclk) |
2974 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2975 | else |
2976 | return -EINVAL; | |
2977 | } | |
2978 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2979 | ||
2980 | /** | |
2981 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2982 | * @dai: DAI | |
ac11a2b3 | 2983 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2984 | * @div: new clock divisor. |
2985 | * | |
2986 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2987 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2988 | * and frame clocks as low as possible to save system power. | |
2989 | */ | |
2990 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2991 | int div_id, int div) | |
2992 | { | |
f0fba2ad LG |
2993 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2994 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2995 | else |
2996 | return -EINVAL; | |
2997 | } | |
2998 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2999 | ||
3000 | /** | |
3001 | * snd_soc_dai_set_pll - configure DAI PLL. | |
3002 | * @dai: DAI | |
3003 | * @pll_id: DAI specific PLL ID | |
85488037 | 3004 | * @source: DAI specific source for the PLL |
8c6529db LG |
3005 | * @freq_in: PLL input clock frequency in Hz |
3006 | * @freq_out: requested PLL output clock frequency in Hz | |
3007 | * | |
3008 | * Configures and enables PLL to generate output clock based on input clock. | |
3009 | */ | |
85488037 MB |
3010 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
3011 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 3012 | { |
f0fba2ad LG |
3013 | if (dai->driver && dai->driver->ops->set_pll) |
3014 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 3015 | freq_in, freq_out); |
8c6529db LG |
3016 | else |
3017 | return -EINVAL; | |
3018 | } | |
3019 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
3020 | ||
3021 | /** | |
3022 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
3023 | * @dai: DAI | |
8c6529db LG |
3024 | * @fmt: SND_SOC_DAIFMT_ format value. |
3025 | * | |
3026 | * Configures the DAI hardware format and clocking. | |
3027 | */ | |
3028 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
3029 | { | |
f0fba2ad LG |
3030 | if (dai->driver && dai->driver->ops->set_fmt) |
3031 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
3032 | else |
3033 | return -EINVAL; | |
3034 | } | |
3035 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
3036 | ||
3037 | /** | |
3038 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
3039 | * @dai: DAI | |
a5479e38 DR |
3040 | * @tx_mask: bitmask representing active TX slots. |
3041 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 3042 | * @slots: Number of slots in use. |
a5479e38 | 3043 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
3044 | * |
3045 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
3046 | * specific. | |
3047 | */ | |
3048 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 3049 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 3050 | { |
f0fba2ad LG |
3051 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
3052 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 3053 | slots, slot_width); |
8c6529db LG |
3054 | else |
3055 | return -EINVAL; | |
3056 | } | |
3057 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
3058 | ||
472df3cb BS |
3059 | /** |
3060 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
3061 | * @dai: DAI | |
3062 | * @tx_num: how many TX channels | |
3063 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
3064 | * 0~num-1 uses | |
3065 | * @rx_num: how many RX channels | |
3066 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
3067 | * 0~num-1 uses | |
3068 | * | |
3069 | * configure the relationship between channel number and TDM slot number. | |
3070 | */ | |
3071 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
3072 | unsigned int tx_num, unsigned int *tx_slot, | |
3073 | unsigned int rx_num, unsigned int *rx_slot) | |
3074 | { | |
f0fba2ad LG |
3075 | if (dai->driver && dai->driver->ops->set_channel_map) |
3076 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
3077 | rx_num, rx_slot); |
3078 | else | |
3079 | return -EINVAL; | |
3080 | } | |
3081 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
3082 | ||
8c6529db LG |
3083 | /** |
3084 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
3085 | * @dai: DAI | |
3086 | * @tristate: tristate enable | |
3087 | * | |
3088 | * Tristates the DAI so that others can use it. | |
3089 | */ | |
3090 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
3091 | { | |
f0fba2ad LG |
3092 | if (dai->driver && dai->driver->ops->set_tristate) |
3093 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
3094 | else |
3095 | return -EINVAL; | |
3096 | } | |
3097 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
3098 | ||
3099 | /** | |
3100 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
3101 | * @dai: DAI | |
3102 | * @mute: mute enable | |
3103 | * | |
3104 | * Mutes the DAI DAC. | |
3105 | */ | |
3106 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
3107 | { | |
f0fba2ad LG |
3108 | if (dai->driver && dai->driver->ops->digital_mute) |
3109 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
3110 | else |
3111 | return -EINVAL; | |
3112 | } | |
3113 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
3114 | ||
c5af3a2e MB |
3115 | /** |
3116 | * snd_soc_register_card - Register a card with the ASoC core | |
3117 | * | |
ac11a2b3 | 3118 | * @card: Card to register |
c5af3a2e MB |
3119 | * |
3120 | * Note that currently this is an internal only function: it will be | |
3121 | * exposed to machine drivers after further backporting of ASoC v2 | |
3122 | * registration APIs. | |
3123 | */ | |
3124 | static int snd_soc_register_card(struct snd_soc_card *card) | |
3125 | { | |
f0fba2ad LG |
3126 | int i; |
3127 | ||
c5af3a2e MB |
3128 | if (!card->name || !card->dev) |
3129 | return -EINVAL; | |
3130 | ||
2eea392d JN |
3131 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * |
3132 | (card->num_links + card->num_aux_devs), | |
3133 | GFP_KERNEL); | |
f0fba2ad LG |
3134 | if (card->rtd == NULL) |
3135 | return -ENOMEM; | |
2eea392d | 3136 | card->rtd_aux = &card->rtd[card->num_links]; |
f0fba2ad LG |
3137 | |
3138 | for (i = 0; i < card->num_links; i++) | |
3139 | card->rtd[i].dai_link = &card->dai_link[i]; | |
3140 | ||
c5af3a2e MB |
3141 | INIT_LIST_HEAD(&card->list); |
3142 | card->instantiated = 0; | |
f0fba2ad | 3143 | mutex_init(&card->mutex); |
c5af3a2e MB |
3144 | |
3145 | mutex_lock(&client_mutex); | |
3146 | list_add(&card->list, &card_list); | |
435c5e25 | 3147 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
3148 | mutex_unlock(&client_mutex); |
3149 | ||
3150 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
3151 | ||
3152 | return 0; | |
3153 | } | |
3154 | ||
3155 | /** | |
3156 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
3157 | * | |
ac11a2b3 | 3158 | * @card: Card to unregister |
c5af3a2e MB |
3159 | * |
3160 | * Note that currently this is an internal only function: it will be | |
3161 | * exposed to machine drivers after further backporting of ASoC v2 | |
3162 | * registration APIs. | |
3163 | */ | |
3164 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
3165 | { | |
3166 | mutex_lock(&client_mutex); | |
3167 | list_del(&card->list); | |
3168 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
3169 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
3170 | ||
3171 | return 0; | |
3172 | } | |
3173 | ||
f0fba2ad LG |
3174 | /* |
3175 | * Simplify DAI link configuration by removing ".-1" from device names | |
3176 | * and sanitizing names. | |
3177 | */ | |
0b9a214a | 3178 | static char *fmt_single_name(struct device *dev, int *id) |
f0fba2ad LG |
3179 | { |
3180 | char *found, name[NAME_SIZE]; | |
3181 | int id1, id2; | |
3182 | ||
3183 | if (dev_name(dev) == NULL) | |
3184 | return NULL; | |
3185 | ||
58818a77 | 3186 | strlcpy(name, dev_name(dev), NAME_SIZE); |
f0fba2ad LG |
3187 | |
3188 | /* are we a "%s.%d" name (platform and SPI components) */ | |
3189 | found = strstr(name, dev->driver->name); | |
3190 | if (found) { | |
3191 | /* get ID */ | |
3192 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
3193 | ||
3194 | /* discard ID from name if ID == -1 */ | |
3195 | if (*id == -1) | |
3196 | found[strlen(dev->driver->name)] = '\0'; | |
3197 | } | |
3198 | ||
3199 | } else { | |
3200 | /* I2C component devices are named "bus-addr" */ | |
3201 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
3202 | char tmp[NAME_SIZE]; | |
3203 | ||
3204 | /* create unique ID number from I2C addr and bus */ | |
05899446 | 3205 | *id = ((id1 & 0xffff) << 16) + id2; |
f0fba2ad LG |
3206 | |
3207 | /* sanitize component name for DAI link creation */ | |
3208 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
58818a77 | 3209 | strlcpy(name, tmp, NAME_SIZE); |
f0fba2ad LG |
3210 | } else |
3211 | *id = 0; | |
3212 | } | |
3213 | ||
3214 | return kstrdup(name, GFP_KERNEL); | |
3215 | } | |
3216 | ||
3217 | /* | |
3218 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
3219 | * any ".-1" and using the DAI name (instead of device name). | |
3220 | */ | |
3221 | static inline char *fmt_multiple_name(struct device *dev, | |
3222 | struct snd_soc_dai_driver *dai_drv) | |
3223 | { | |
3224 | if (dai_drv->name == NULL) { | |
3225 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
3226 | dev_name(dev)); | |
3227 | return NULL; | |
3228 | } | |
3229 | ||
3230 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
3231 | } | |
3232 | ||
9115171a MB |
3233 | /** |
3234 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
3235 | * | |
ac11a2b3 | 3236 | * @dai: DAI to register |
9115171a | 3237 | */ |
f0fba2ad LG |
3238 | int snd_soc_register_dai(struct device *dev, |
3239 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 3240 | { |
f0fba2ad LG |
3241 | struct snd_soc_dai *dai; |
3242 | ||
3243 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 3244 | |
f0fba2ad LG |
3245 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
3246 | if (dai == NULL) | |
3247 | return -ENOMEM; | |
9115171a | 3248 | |
f0fba2ad LG |
3249 | /* create DAI component name */ |
3250 | dai->name = fmt_single_name(dev, &dai->id); | |
3251 | if (dai->name == NULL) { | |
3252 | kfree(dai); | |
3253 | return -ENOMEM; | |
3254 | } | |
6335d055 | 3255 | |
f0fba2ad LG |
3256 | dai->dev = dev; |
3257 | dai->driver = dai_drv; | |
3258 | if (!dai->driver->ops) | |
3259 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
3260 | |
3261 | mutex_lock(&client_mutex); | |
3262 | list_add(&dai->list, &dai_list); | |
435c5e25 | 3263 | snd_soc_instantiate_cards(); |
9115171a MB |
3264 | mutex_unlock(&client_mutex); |
3265 | ||
3266 | pr_debug("Registered DAI '%s'\n", dai->name); | |
3267 | ||
3268 | return 0; | |
3269 | } | |
3270 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
3271 | ||
3272 | /** | |
3273 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
3274 | * | |
ac11a2b3 | 3275 | * @dai: DAI to unregister |
9115171a | 3276 | */ |
f0fba2ad | 3277 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 3278 | { |
f0fba2ad LG |
3279 | struct snd_soc_dai *dai; |
3280 | ||
3281 | list_for_each_entry(dai, &dai_list, list) { | |
3282 | if (dev == dai->dev) | |
3283 | goto found; | |
3284 | } | |
3285 | return; | |
3286 | ||
3287 | found: | |
9115171a MB |
3288 | mutex_lock(&client_mutex); |
3289 | list_del(&dai->list); | |
3290 | mutex_unlock(&client_mutex); | |
3291 | ||
3292 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3293 | kfree(dai->name); |
3294 | kfree(dai); | |
9115171a MB |
3295 | } |
3296 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3297 | ||
3298 | /** | |
3299 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3300 | * | |
ac11a2b3 MB |
3301 | * @dai: Array of DAIs to register |
3302 | * @count: Number of DAIs | |
9115171a | 3303 | */ |
f0fba2ad LG |
3304 | int snd_soc_register_dais(struct device *dev, |
3305 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3306 | { |
f0fba2ad LG |
3307 | struct snd_soc_dai *dai; |
3308 | int i, ret = 0; | |
3309 | ||
720ffa4c | 3310 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3311 | |
3312 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3313 | |
3314 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
c46e0079 AL |
3315 | if (dai == NULL) { |
3316 | ret = -ENOMEM; | |
3317 | goto err; | |
3318 | } | |
f0fba2ad LG |
3319 | |
3320 | /* create DAI component name */ | |
3321 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3322 | if (dai->name == NULL) { | |
3323 | kfree(dai); | |
3324 | ret = -EINVAL; | |
9115171a | 3325 | goto err; |
f0fba2ad LG |
3326 | } |
3327 | ||
3328 | dai->dev = dev; | |
f0fba2ad | 3329 | dai->driver = &dai_drv[i]; |
0f9141c9 MB |
3330 | if (dai->driver->id) |
3331 | dai->id = dai->driver->id; | |
3332 | else | |
3333 | dai->id = i; | |
f0fba2ad LG |
3334 | if (!dai->driver->ops) |
3335 | dai->driver->ops = &null_dai_ops; | |
3336 | ||
3337 | mutex_lock(&client_mutex); | |
3338 | list_add(&dai->list, &dai_list); | |
3339 | mutex_unlock(&client_mutex); | |
3340 | ||
3341 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3342 | } |
3343 | ||
1dcb4f38 | 3344 | mutex_lock(&client_mutex); |
f0fba2ad | 3345 | snd_soc_instantiate_cards(); |
1dcb4f38 | 3346 | mutex_unlock(&client_mutex); |
9115171a MB |
3347 | return 0; |
3348 | ||
3349 | err: | |
3350 | for (i--; i >= 0; i--) | |
f0fba2ad | 3351 | snd_soc_unregister_dai(dev); |
9115171a MB |
3352 | |
3353 | return ret; | |
3354 | } | |
3355 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3356 | ||
3357 | /** | |
3358 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3359 | * | |
ac11a2b3 MB |
3360 | * @dai: Array of DAIs to unregister |
3361 | * @count: Number of DAIs | |
9115171a | 3362 | */ |
f0fba2ad | 3363 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3364 | { |
3365 | int i; | |
3366 | ||
3367 | for (i = 0; i < count; i++) | |
f0fba2ad | 3368 | snd_soc_unregister_dai(dev); |
9115171a MB |
3369 | } |
3370 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3371 | ||
12a48a8c MB |
3372 | /** |
3373 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3374 | * | |
ac11a2b3 | 3375 | * @platform: platform to register |
12a48a8c | 3376 | */ |
f0fba2ad LG |
3377 | int snd_soc_register_platform(struct device *dev, |
3378 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3379 | { |
f0fba2ad LG |
3380 | struct snd_soc_platform *platform; |
3381 | ||
3382 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3383 | ||
3384 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3385 | if (platform == NULL) | |
3386 | return -ENOMEM; | |
3387 | ||
3388 | /* create platform component name */ | |
3389 | platform->name = fmt_single_name(dev, &platform->id); | |
3390 | if (platform->name == NULL) { | |
3391 | kfree(platform); | |
3392 | return -ENOMEM; | |
3393 | } | |
12a48a8c | 3394 | |
f0fba2ad LG |
3395 | platform->dev = dev; |
3396 | platform->driver = platform_drv; | |
12a48a8c MB |
3397 | |
3398 | mutex_lock(&client_mutex); | |
3399 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3400 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3401 | mutex_unlock(&client_mutex); |
3402 | ||
3403 | pr_debug("Registered platform '%s'\n", platform->name); | |
3404 | ||
3405 | return 0; | |
3406 | } | |
3407 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3408 | ||
3409 | /** | |
3410 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3411 | * | |
ac11a2b3 | 3412 | * @platform: platform to unregister |
12a48a8c | 3413 | */ |
f0fba2ad | 3414 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3415 | { |
f0fba2ad LG |
3416 | struct snd_soc_platform *platform; |
3417 | ||
3418 | list_for_each_entry(platform, &platform_list, list) { | |
3419 | if (dev == platform->dev) | |
3420 | goto found; | |
3421 | } | |
3422 | return; | |
3423 | ||
3424 | found: | |
12a48a8c MB |
3425 | mutex_lock(&client_mutex); |
3426 | list_del(&platform->list); | |
3427 | mutex_unlock(&client_mutex); | |
3428 | ||
3429 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3430 | kfree(platform->name); |
3431 | kfree(platform); | |
12a48a8c MB |
3432 | } |
3433 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3434 | ||
151ab22c MB |
3435 | static u64 codec_format_map[] = { |
3436 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3437 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3438 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3439 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3440 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3441 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3442 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3443 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3444 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3445 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3446 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3447 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3448 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3449 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3450 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3451 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3452 | }; | |
3453 | ||
3454 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3455 | * the endianness of the data but we're using the CPU format | |
3456 | * definitions which do need to include endianness so we ensure that | |
3457 | * codec DAIs always have both big and little endian variants set. | |
3458 | */ | |
3459 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3460 | { | |
3461 | int i; | |
3462 | ||
3463 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3464 | if (stream->formats & codec_format_map[i]) | |
3465 | stream->formats |= codec_format_map[i]; | |
3466 | } | |
3467 | ||
0d0cf00a MB |
3468 | /** |
3469 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3470 | * | |
ac11a2b3 | 3471 | * @codec: codec to register |
0d0cf00a | 3472 | */ |
f0fba2ad | 3473 | int snd_soc_register_codec(struct device *dev, |
001ae4c0 MB |
3474 | const struct snd_soc_codec_driver *codec_drv, |
3475 | struct snd_soc_dai_driver *dai_drv, | |
3476 | int num_dai) | |
0d0cf00a | 3477 | { |
3335ddca | 3478 | size_t reg_size; |
f0fba2ad LG |
3479 | struct snd_soc_codec *codec; |
3480 | int ret, i; | |
151ab22c | 3481 | |
f0fba2ad LG |
3482 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3483 | ||
3484 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3485 | if (codec == NULL) | |
3486 | return -ENOMEM; | |
0d0cf00a | 3487 | |
f0fba2ad LG |
3488 | /* create CODEC component name */ |
3489 | codec->name = fmt_single_name(dev, &codec->id); | |
3490 | if (codec->name == NULL) { | |
3491 | kfree(codec); | |
3492 | return -ENOMEM; | |
3493 | } | |
3494 | ||
23bbce34 DP |
3495 | if (codec_drv->compress_type) |
3496 | codec->compress_type = codec_drv->compress_type; | |
3497 | else | |
3498 | codec->compress_type = SND_SOC_FLAT_COMPRESSION; | |
3499 | ||
c3acec26 MB |
3500 | codec->write = codec_drv->write; |
3501 | codec->read = codec_drv->read; | |
ce6120cc LG |
3502 | codec->dapm.bias_level = SND_SOC_BIAS_OFF; |
3503 | codec->dapm.dev = dev; | |
3504 | codec->dapm.codec = codec; | |
7a30a3db DP |
3505 | codec->dev = dev; |
3506 | codec->driver = codec_drv; | |
3507 | codec->num_dai = num_dai; | |
3508 | mutex_init(&codec->mutex); | |
ce6120cc | 3509 | |
f0fba2ad LG |
3510 | /* allocate CODEC register cache */ |
3511 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
3335ddca DP |
3512 | reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size; |
3513 | /* it is necessary to make a copy of the default register cache | |
3514 | * because in the case of using a compression type that requires | |
3515 | * the default register cache to be marked as __devinitconst the | |
3516 | * kernel might have freed the array by the time we initialize | |
3517 | * the cache. | |
3518 | */ | |
2aa86323 DP |
3519 | if (codec_drv->reg_cache_default) { |
3520 | codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default, | |
3521 | reg_size, GFP_KERNEL); | |
3522 | if (!codec->reg_def_copy) { | |
3523 | ret = -ENOMEM; | |
3524 | goto fail; | |
3525 | } | |
f0fba2ad | 3526 | } |
151ab22c MB |
3527 | } |
3528 | ||
f0fba2ad LG |
3529 | for (i = 0; i < num_dai; i++) { |
3530 | fixup_codec_formats(&dai_drv[i].playback); | |
3531 | fixup_codec_formats(&dai_drv[i].capture); | |
3532 | } | |
3533 | ||
26b01ccd MB |
3534 | /* register any DAIs */ |
3535 | if (num_dai) { | |
3536 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3537 | if (ret < 0) | |
fdf0f54d | 3538 | goto fail; |
26b01ccd | 3539 | } |
f0fba2ad | 3540 | |
0d0cf00a MB |
3541 | mutex_lock(&client_mutex); |
3542 | list_add(&codec->list, &codec_list); | |
3543 | snd_soc_instantiate_cards(); | |
3544 | mutex_unlock(&client_mutex); | |
3545 | ||
3546 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3547 | return 0; |
f0fba2ad | 3548 | |
fdf0f54d | 3549 | fail: |
3335ddca DP |
3550 | kfree(codec->reg_def_copy); |
3551 | codec->reg_def_copy = NULL; | |
f0fba2ad LG |
3552 | kfree(codec->name); |
3553 | kfree(codec); | |
3554 | return ret; | |
0d0cf00a MB |
3555 | } |
3556 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3557 | ||
3558 | /** | |
3559 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3560 | * | |
ac11a2b3 | 3561 | * @codec: codec to unregister |
0d0cf00a | 3562 | */ |
f0fba2ad | 3563 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3564 | { |
f0fba2ad LG |
3565 | struct snd_soc_codec *codec; |
3566 | int i; | |
3567 | ||
3568 | list_for_each_entry(codec, &codec_list, list) { | |
3569 | if (dev == codec->dev) | |
3570 | goto found; | |
3571 | } | |
3572 | return; | |
3573 | ||
3574 | found: | |
26b01ccd MB |
3575 | if (codec->num_dai) |
3576 | for (i = 0; i < codec->num_dai; i++) | |
3577 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3578 | |
0d0cf00a MB |
3579 | mutex_lock(&client_mutex); |
3580 | list_del(&codec->list); | |
3581 | mutex_unlock(&client_mutex); | |
3582 | ||
3583 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad | 3584 | |
7a30a3db | 3585 | snd_soc_cache_exit(codec); |
3335ddca | 3586 | kfree(codec->reg_def_copy); |
1aafcd4d | 3587 | kfree(codec->name); |
f0fba2ad | 3588 | kfree(codec); |
0d0cf00a MB |
3589 | } |
3590 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3591 | ||
c9b3a40f | 3592 | static int __init snd_soc_init(void) |
db2a4165 | 3593 | { |
384c89e2 | 3594 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a MB |
3595 | snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL); |
3596 | if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) { | |
384c89e2 MB |
3597 | printk(KERN_WARNING |
3598 | "ASoC: Failed to create debugfs directory\n"); | |
8a9dab1a | 3599 | snd_soc_debugfs_root = NULL; |
384c89e2 | 3600 | } |
c3c5a19a | 3601 | |
8a9dab1a | 3602 | if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL, |
c3c5a19a MB |
3603 | &codec_list_fops)) |
3604 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3605 | ||
8a9dab1a | 3606 | if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL, |
f3208780 MB |
3607 | &dai_list_fops)) |
3608 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 | 3609 | |
8a9dab1a | 3610 | if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL, |
19c7ac27 MB |
3611 | &platform_list_fops)) |
3612 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3613 | #endif |
3614 | ||
db2a4165 FM |
3615 | return platform_driver_register(&soc_driver); |
3616 | } | |
4abe8e16 | 3617 | module_init(snd_soc_init); |
db2a4165 | 3618 | |
7d8c16a6 | 3619 | static void __exit snd_soc_exit(void) |
db2a4165 | 3620 | { |
384c89e2 | 3621 | #ifdef CONFIG_DEBUG_FS |
8a9dab1a | 3622 | debugfs_remove_recursive(snd_soc_debugfs_root); |
384c89e2 | 3623 | #endif |
3ff3f64b | 3624 | platform_driver_unregister(&soc_driver); |
db2a4165 | 3625 | } |
db2a4165 FM |
3626 | module_exit(snd_soc_exit); |
3627 | ||
3628 | /* Module information */ | |
d331124d | 3629 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3630 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3631 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3632 | MODULE_ALIAS("platform:soc-audio"); |