Commit | Line | Data |
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db2a4165 FM |
1 | /* |
2 | * soc-core.c -- ALSA SoC Audio Layer | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
0664d888 | 5 | * Copyright 2005 Openedhand Ltd. |
f0fba2ad LG |
6 | * Copyright (C) 2010 Slimlogic Ltd. |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
0664d888 | 8 | * |
d331124d | 9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
0664d888 LG |
10 | * with code, comments and ideas from :- |
11 | * Richard Purdie <richard@openedhand.com> | |
db2a4165 FM |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
db2a4165 FM |
18 | * TODO: |
19 | * o Add hw rules to enforce rates, etc. | |
20 | * o More testing with other codecs/machines. | |
21 | * o Add more codecs and platforms to ensure good API coverage. | |
22 | * o Support TDM on PCM and I2S | |
23 | */ | |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/pm.h> | |
30 | #include <linux/bitops.h> | |
12ef193d | 31 | #include <linux/debugfs.h> |
db2a4165 | 32 | #include <linux/platform_device.h> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
474828a4 | 34 | #include <sound/ac97_codec.h> |
db2a4165 FM |
35 | #include <sound/core.h> |
36 | #include <sound/pcm.h> | |
37 | #include <sound/pcm_params.h> | |
38 | #include <sound/soc.h> | |
39 | #include <sound/soc-dapm.h> | |
40 | #include <sound/initval.h> | |
41 | ||
f0fba2ad LG |
42 | #define NAME_SIZE 32 |
43 | ||
db2a4165 | 44 | static DEFINE_MUTEX(pcm_mutex); |
db2a4165 FM |
45 | static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq); |
46 | ||
384c89e2 MB |
47 | #ifdef CONFIG_DEBUG_FS |
48 | static struct dentry *debugfs_root; | |
49 | #endif | |
50 | ||
c5af3a2e MB |
51 | static DEFINE_MUTEX(client_mutex); |
52 | static LIST_HEAD(card_list); | |
9115171a | 53 | static LIST_HEAD(dai_list); |
12a48a8c | 54 | static LIST_HEAD(platform_list); |
0d0cf00a | 55 | static LIST_HEAD(codec_list); |
c5af3a2e MB |
56 | |
57 | static int snd_soc_register_card(struct snd_soc_card *card); | |
58 | static int snd_soc_unregister_card(struct snd_soc_card *card); | |
f0fba2ad | 59 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); |
c5af3a2e | 60 | |
db2a4165 FM |
61 | /* |
62 | * This is a timeout to do a DAPM powerdown after a stream is closed(). | |
63 | * It can be used to eliminate pops between different playback streams, e.g. | |
64 | * between two audio tracks. | |
65 | */ | |
66 | static int pmdown_time = 5000; | |
67 | module_param(pmdown_time, int, 0); | |
68 | MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)"); | |
69 | ||
965ac42c LG |
70 | /* |
71 | * This function forces any delayed work to be queued and run. | |
72 | */ | |
73 | static int run_delayed_work(struct delayed_work *dwork) | |
74 | { | |
75 | int ret; | |
76 | ||
77 | /* cancel any work waiting to be queued. */ | |
78 | ret = cancel_delayed_work(dwork); | |
79 | ||
80 | /* if there was any work waiting then we run it now and | |
81 | * wait for it's completion */ | |
82 | if (ret) { | |
83 | schedule_delayed_work(dwork, 0); | |
84 | flush_scheduled_work(); | |
85 | } | |
86 | return ret; | |
87 | } | |
88 | ||
2624d5fa MB |
89 | /* codec register dump */ |
90 | static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf) | |
91 | { | |
5164d74d | 92 | int ret, i, step = 1, count = 0; |
2624d5fa | 93 | |
f0fba2ad | 94 | if (!codec->driver->reg_cache_size) |
2624d5fa MB |
95 | return 0; |
96 | ||
f0fba2ad LG |
97 | if (codec->driver->reg_cache_step) |
98 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
99 | |
100 | count += sprintf(buf, "%s registers\n", codec->name); | |
f0fba2ad LG |
101 | for (i = 0; i < codec->driver->reg_cache_size; i += step) { |
102 | if (codec->driver->readable_register && !codec->driver->readable_register(i)) | |
2624d5fa MB |
103 | continue; |
104 | ||
105 | count += sprintf(buf + count, "%2x: ", i); | |
106 | if (count >= PAGE_SIZE - 1) | |
107 | break; | |
108 | ||
f0fba2ad LG |
109 | if (codec->driver->display_register) { |
110 | count += codec->driver->display_register(codec, buf + count, | |
2624d5fa | 111 | PAGE_SIZE - count, i); |
5164d74d MB |
112 | } else { |
113 | /* If the read fails it's almost certainly due to | |
114 | * the register being volatile and the device being | |
115 | * powered off. | |
116 | */ | |
f0fba2ad | 117 | ret = codec->driver->read(codec, i); |
5164d74d MB |
118 | if (ret >= 0) |
119 | count += snprintf(buf + count, | |
120 | PAGE_SIZE - count, | |
121 | "%4x", ret); | |
122 | else | |
123 | count += snprintf(buf + count, | |
124 | PAGE_SIZE - count, | |
125 | "<no data: %d>", ret); | |
126 | } | |
2624d5fa MB |
127 | |
128 | if (count >= PAGE_SIZE - 1) | |
129 | break; | |
130 | ||
131 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); | |
132 | if (count >= PAGE_SIZE - 1) | |
133 | break; | |
134 | } | |
135 | ||
136 | /* Truncate count; min() would cause a warning */ | |
137 | if (count >= PAGE_SIZE) | |
138 | count = PAGE_SIZE - 1; | |
139 | ||
140 | return count; | |
141 | } | |
142 | static ssize_t codec_reg_show(struct device *dev, | |
143 | struct device_attribute *attr, char *buf) | |
144 | { | |
f0fba2ad LG |
145 | struct snd_soc_pcm_runtime *rtd = |
146 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
147 | ||
148 | return soc_codec_reg_show(rtd->codec, buf); | |
2624d5fa MB |
149 | } |
150 | ||
151 | static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL); | |
152 | ||
dbe21408 MB |
153 | static ssize_t pmdown_time_show(struct device *dev, |
154 | struct device_attribute *attr, char *buf) | |
155 | { | |
f0fba2ad LG |
156 | struct snd_soc_pcm_runtime *rtd = |
157 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 158 | |
f0fba2ad | 159 | return sprintf(buf, "%ld\n", rtd->pmdown_time); |
dbe21408 MB |
160 | } |
161 | ||
162 | static ssize_t pmdown_time_set(struct device *dev, | |
163 | struct device_attribute *attr, | |
164 | const char *buf, size_t count) | |
165 | { | |
f0fba2ad LG |
166 | struct snd_soc_pcm_runtime *rtd = |
167 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
dbe21408 | 168 | |
f0fba2ad | 169 | strict_strtol(buf, 10, &rtd->pmdown_time); |
dbe21408 MB |
170 | |
171 | return count; | |
172 | } | |
173 | ||
174 | static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set); | |
175 | ||
2624d5fa MB |
176 | #ifdef CONFIG_DEBUG_FS |
177 | static int codec_reg_open_file(struct inode *inode, struct file *file) | |
178 | { | |
179 | file->private_data = inode->i_private; | |
180 | return 0; | |
181 | } | |
182 | ||
183 | static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf, | |
184 | size_t count, loff_t *ppos) | |
185 | { | |
186 | ssize_t ret; | |
187 | struct snd_soc_codec *codec = file->private_data; | |
188 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
189 | if (!buf) | |
190 | return -ENOMEM; | |
191 | ret = soc_codec_reg_show(codec, buf); | |
192 | if (ret >= 0) | |
193 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
194 | kfree(buf); | |
195 | return ret; | |
196 | } | |
197 | ||
198 | static ssize_t codec_reg_write_file(struct file *file, | |
199 | const char __user *user_buf, size_t count, loff_t *ppos) | |
200 | { | |
201 | char buf[32]; | |
202 | int buf_size; | |
203 | char *start = buf; | |
204 | unsigned long reg, value; | |
205 | int step = 1; | |
206 | struct snd_soc_codec *codec = file->private_data; | |
207 | ||
208 | buf_size = min(count, (sizeof(buf)-1)); | |
209 | if (copy_from_user(buf, user_buf, buf_size)) | |
210 | return -EFAULT; | |
211 | buf[buf_size] = 0; | |
212 | ||
f0fba2ad LG |
213 | if (codec->driver->reg_cache_step) |
214 | step = codec->driver->reg_cache_step; | |
2624d5fa MB |
215 | |
216 | while (*start == ' ') | |
217 | start++; | |
218 | reg = simple_strtoul(start, &start, 16); | |
f0fba2ad | 219 | if ((reg >= codec->driver->reg_cache_size) || (reg % step)) |
2624d5fa MB |
220 | return -EINVAL; |
221 | while (*start == ' ') | |
222 | start++; | |
223 | if (strict_strtoul(start, 16, &value)) | |
224 | return -EINVAL; | |
f0fba2ad | 225 | codec->driver->write(codec, reg, value); |
2624d5fa MB |
226 | return buf_size; |
227 | } | |
228 | ||
229 | static const struct file_operations codec_reg_fops = { | |
230 | .open = codec_reg_open_file, | |
231 | .read = codec_reg_read_file, | |
232 | .write = codec_reg_write_file, | |
233 | }; | |
234 | ||
235 | static void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
236 | { | |
6ba6c9c3 | 237 | codec->debugfs_codec_root = debugfs_create_dir(codec->name , |
2624d5fa MB |
238 | debugfs_root); |
239 | if (!codec->debugfs_codec_root) { | |
240 | printk(KERN_WARNING | |
241 | "ASoC: Failed to create codec debugfs directory\n"); | |
242 | return; | |
243 | } | |
244 | ||
245 | codec->debugfs_reg = debugfs_create_file("codec_reg", 0644, | |
246 | codec->debugfs_codec_root, | |
247 | codec, &codec_reg_fops); | |
248 | if (!codec->debugfs_reg) | |
249 | printk(KERN_WARNING | |
250 | "ASoC: Failed to create codec register debugfs file\n"); | |
251 | ||
708fafb3 | 252 | codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644, |
2624d5fa MB |
253 | codec->debugfs_codec_root, |
254 | &codec->pop_time); | |
255 | if (!codec->debugfs_pop_time) | |
256 | printk(KERN_WARNING | |
257 | "Failed to create pop time debugfs file\n"); | |
258 | ||
259 | codec->debugfs_dapm = debugfs_create_dir("dapm", | |
260 | codec->debugfs_codec_root); | |
261 | if (!codec->debugfs_dapm) | |
262 | printk(KERN_WARNING | |
263 | "Failed to create DAPM debugfs directory\n"); | |
264 | ||
265 | snd_soc_dapm_debugfs_init(codec); | |
266 | } | |
267 | ||
268 | static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
269 | { | |
270 | debugfs_remove_recursive(codec->debugfs_codec_root); | |
271 | } | |
272 | ||
c3c5a19a MB |
273 | static ssize_t codec_list_read_file(struct file *file, char __user *user_buf, |
274 | size_t count, loff_t *ppos) | |
275 | { | |
276 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
277 | ssize_t ret = 0; | |
278 | struct snd_soc_codec *codec; | |
279 | ||
280 | if (!buf) | |
281 | return -ENOMEM; | |
282 | ||
283 | list_for_each_entry(codec, &codec_list, list) | |
284 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
285 | codec->name); | |
286 | ||
287 | if (ret >= 0) | |
288 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
289 | ||
290 | kfree(buf); | |
291 | ||
292 | return ret; | |
293 | } | |
294 | ||
295 | static const struct file_operations codec_list_fops = { | |
296 | .read = codec_list_read_file, | |
297 | .llseek = default_llseek,/* read accesses f_pos */ | |
298 | }; | |
299 | ||
f3208780 MB |
300 | static ssize_t dai_list_read_file(struct file *file, char __user *user_buf, |
301 | size_t count, loff_t *ppos) | |
302 | { | |
303 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
304 | ssize_t ret = 0; | |
305 | struct snd_soc_dai *dai; | |
306 | ||
307 | if (!buf) | |
308 | return -ENOMEM; | |
309 | ||
310 | list_for_each_entry(dai, &dai_list, list) | |
311 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name); | |
312 | ||
313 | if (ret >= 0) | |
314 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
315 | ||
316 | kfree(buf); | |
317 | ||
318 | return ret; | |
319 | } | |
320 | ||
321 | static const struct file_operations dai_list_fops = { | |
322 | .read = dai_list_read_file, | |
323 | .llseek = default_llseek,/* read accesses f_pos */ | |
324 | }; | |
325 | ||
19c7ac27 MB |
326 | static ssize_t platform_list_read_file(struct file *file, |
327 | char __user *user_buf, | |
328 | size_t count, loff_t *ppos) | |
329 | { | |
330 | char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
331 | ssize_t ret = 0; | |
332 | struct snd_soc_platform *platform; | |
333 | ||
334 | if (!buf) | |
335 | return -ENOMEM; | |
336 | ||
337 | list_for_each_entry(platform, &platform_list, list) | |
338 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", | |
339 | platform->name); | |
340 | ||
341 | if (ret >= 0) | |
342 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
343 | ||
344 | kfree(buf); | |
345 | ||
346 | return ret; | |
347 | } | |
348 | ||
349 | static const struct file_operations platform_list_fops = { | |
350 | .read = platform_list_read_file, | |
351 | .llseek = default_llseek,/* read accesses f_pos */ | |
352 | }; | |
353 | ||
2624d5fa MB |
354 | #else |
355 | ||
356 | static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec) | |
357 | { | |
358 | } | |
359 | ||
360 | static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec) | |
361 | { | |
362 | } | |
363 | #endif | |
364 | ||
db2a4165 FM |
365 | #ifdef CONFIG_SND_SOC_AC97_BUS |
366 | /* unregister ac97 codec */ | |
367 | static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) | |
368 | { | |
369 | if (codec->ac97->dev.bus) | |
370 | device_unregister(&codec->ac97->dev); | |
371 | return 0; | |
372 | } | |
373 | ||
374 | /* stop no dev release warning */ | |
375 | static void soc_ac97_device_release(struct device *dev){} | |
376 | ||
377 | /* register ac97 codec to bus */ | |
378 | static int soc_ac97_dev_register(struct snd_soc_codec *codec) | |
379 | { | |
380 | int err; | |
381 | ||
382 | codec->ac97->dev.bus = &ac97_bus_type; | |
4ac5c61f | 383 | codec->ac97->dev.parent = codec->card->dev; |
db2a4165 FM |
384 | codec->ac97->dev.release = soc_ac97_device_release; |
385 | ||
bb072bf0 | 386 | dev_set_name(&codec->ac97->dev, "%d-%d:%s", |
f0fba2ad | 387 | codec->card->snd_card->number, 0, codec->name); |
db2a4165 FM |
388 | err = device_register(&codec->ac97->dev); |
389 | if (err < 0) { | |
390 | snd_printk(KERN_ERR "Can't register ac97 bus\n"); | |
391 | codec->ac97->dev.bus = NULL; | |
392 | return err; | |
393 | } | |
394 | return 0; | |
395 | } | |
396 | #endif | |
397 | ||
06f409d7 MB |
398 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream) |
399 | { | |
400 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
401 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
402 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
06f409d7 MB |
403 | int ret; |
404 | ||
f0fba2ad LG |
405 | if (codec_dai->driver->symmetric_rates || cpu_dai->driver->symmetric_rates || |
406 | rtd->dai_link->symmetric_rates) { | |
407 | dev_dbg(&rtd->dev, "Symmetry forces %dHz rate\n", | |
408 | rtd->rate); | |
06f409d7 MB |
409 | |
410 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
411 | SNDRV_PCM_HW_PARAM_RATE, | |
f0fba2ad LG |
412 | rtd->rate, |
413 | rtd->rate); | |
06f409d7 | 414 | if (ret < 0) { |
f0fba2ad | 415 | dev_err(&rtd->dev, |
06f409d7 MB |
416 | "Unable to apply rate symmetry constraint: %d\n", ret); |
417 | return ret; | |
418 | } | |
419 | } | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
db2a4165 FM |
424 | /* |
425 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
426 | * then initialized and any private data can be allocated. This also calls | |
427 | * startup for the cpu DAI, platform, machine and codec DAI. | |
428 | */ | |
429 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
430 | { | |
431 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
db2a4165 | 432 | struct snd_pcm_runtime *runtime = substream->runtime; |
f0fba2ad LG |
433 | struct snd_soc_platform *platform = rtd->platform; |
434 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
435 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
436 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
437 | struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver; | |
db2a4165 FM |
438 | int ret = 0; |
439 | ||
440 | mutex_lock(&pcm_mutex); | |
441 | ||
442 | /* startup the audio subsystem */ | |
f0fba2ad LG |
443 | if (cpu_dai->driver->ops->startup) { |
444 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); | |
db2a4165 FM |
445 | if (ret < 0) { |
446 | printk(KERN_ERR "asoc: can't open interface %s\n", | |
cb666e5b | 447 | cpu_dai->name); |
db2a4165 FM |
448 | goto out; |
449 | } | |
450 | } | |
451 | ||
f0fba2ad LG |
452 | if (platform->driver->ops->open) { |
453 | ret = platform->driver->ops->open(substream); | |
db2a4165 FM |
454 | if (ret < 0) { |
455 | printk(KERN_ERR "asoc: can't open platform %s\n", platform->name); | |
456 | goto platform_err; | |
457 | } | |
458 | } | |
459 | ||
f0fba2ad LG |
460 | if (codec_dai->driver->ops->startup) { |
461 | ret = codec_dai->driver->ops->startup(substream, codec_dai); | |
db2a4165 | 462 | if (ret < 0) { |
cb666e5b LG |
463 | printk(KERN_ERR "asoc: can't open codec %s\n", |
464 | codec_dai->name); | |
465 | goto codec_dai_err; | |
db2a4165 FM |
466 | } |
467 | } | |
468 | ||
f0fba2ad LG |
469 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { |
470 | ret = rtd->dai_link->ops->startup(substream); | |
db2a4165 | 471 | if (ret < 0) { |
f0fba2ad | 472 | printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name); |
cb666e5b | 473 | goto machine_err; |
db2a4165 FM |
474 | } |
475 | } | |
476 | ||
db2a4165 FM |
477 | /* Check that the codec and cpu DAI's are compatible */ |
478 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
479 | runtime->hw.rate_min = | |
f0fba2ad LG |
480 | max(codec_dai_drv->playback.rate_min, |
481 | cpu_dai_drv->playback.rate_min); | |
db2a4165 | 482 | runtime->hw.rate_max = |
f0fba2ad LG |
483 | min(codec_dai_drv->playback.rate_max, |
484 | cpu_dai_drv->playback.rate_max); | |
db2a4165 | 485 | runtime->hw.channels_min = |
f0fba2ad LG |
486 | max(codec_dai_drv->playback.channels_min, |
487 | cpu_dai_drv->playback.channels_min); | |
db2a4165 | 488 | runtime->hw.channels_max = |
f0fba2ad LG |
489 | min(codec_dai_drv->playback.channels_max, |
490 | cpu_dai_drv->playback.channels_max); | |
cb666e5b | 491 | runtime->hw.formats = |
f0fba2ad | 492 | codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats; |
cb666e5b | 493 | runtime->hw.rates = |
f0fba2ad LG |
494 | codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates; |
495 | if (codec_dai_drv->playback.rates | |
d9ad6296 | 496 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
497 | runtime->hw.rates |= cpu_dai_drv->playback.rates; |
498 | if (cpu_dai_drv->playback.rates | |
d9ad6296 | 499 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 500 | runtime->hw.rates |= codec_dai_drv->playback.rates; |
db2a4165 FM |
501 | } else { |
502 | runtime->hw.rate_min = | |
f0fba2ad LG |
503 | max(codec_dai_drv->capture.rate_min, |
504 | cpu_dai_drv->capture.rate_min); | |
db2a4165 | 505 | runtime->hw.rate_max = |
f0fba2ad LG |
506 | min(codec_dai_drv->capture.rate_max, |
507 | cpu_dai_drv->capture.rate_max); | |
db2a4165 | 508 | runtime->hw.channels_min = |
f0fba2ad LG |
509 | max(codec_dai_drv->capture.channels_min, |
510 | cpu_dai_drv->capture.channels_min); | |
db2a4165 | 511 | runtime->hw.channels_max = |
f0fba2ad LG |
512 | min(codec_dai_drv->capture.channels_max, |
513 | cpu_dai_drv->capture.channels_max); | |
cb666e5b | 514 | runtime->hw.formats = |
f0fba2ad | 515 | codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats; |
cb666e5b | 516 | runtime->hw.rates = |
f0fba2ad LG |
517 | codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates; |
518 | if (codec_dai_drv->capture.rates | |
d9ad6296 | 519 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad LG |
520 | runtime->hw.rates |= cpu_dai_drv->capture.rates; |
521 | if (cpu_dai_drv->capture.rates | |
d9ad6296 | 522 | & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS)) |
f0fba2ad | 523 | runtime->hw.rates |= codec_dai_drv->capture.rates; |
db2a4165 FM |
524 | } |
525 | ||
526 | snd_pcm_limit_hw_rates(runtime); | |
527 | if (!runtime->hw.rates) { | |
528 | printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", | |
cb666e5b | 529 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 530 | goto config_err; |
db2a4165 FM |
531 | } |
532 | if (!runtime->hw.formats) { | |
533 | printk(KERN_ERR "asoc: %s <-> %s No matching formats\n", | |
cb666e5b | 534 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 535 | goto config_err; |
db2a4165 FM |
536 | } |
537 | if (!runtime->hw.channels_min || !runtime->hw.channels_max) { | |
538 | printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", | |
f0fba2ad | 539 | codec_dai->name, cpu_dai->name); |
bb1c0478 | 540 | goto config_err; |
db2a4165 FM |
541 | } |
542 | ||
06f409d7 MB |
543 | /* Symmetry only applies if we've already got an active stream. */ |
544 | if (cpu_dai->active || codec_dai->active) { | |
545 | ret = soc_pcm_apply_symmetry(substream); | |
546 | if (ret != 0) | |
bb1c0478 | 547 | goto config_err; |
06f409d7 MB |
548 | } |
549 | ||
f0fba2ad LG |
550 | pr_debug("asoc: %s <-> %s info:\n", |
551 | codec_dai->name, cpu_dai->name); | |
f24368c2 MB |
552 | pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates); |
553 | pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min, | |
554 | runtime->hw.channels_max); | |
555 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | |
556 | runtime->hw.rate_max); | |
db2a4165 | 557 | |
14dc5734 | 558 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
559 | cpu_dai->playback_active++; |
560 | codec_dai->playback_active++; | |
14dc5734 | 561 | } else { |
f0fba2ad LG |
562 | cpu_dai->capture_active++; |
563 | codec_dai->capture_active++; | |
14dc5734 JB |
564 | } |
565 | cpu_dai->active++; | |
566 | codec_dai->active++; | |
f0fba2ad | 567 | rtd->codec->active++; |
db2a4165 FM |
568 | mutex_unlock(&pcm_mutex); |
569 | return 0; | |
570 | ||
bb1c0478 | 571 | config_err: |
f0fba2ad LG |
572 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
573 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 574 | |
bb1c0478 | 575 | machine_err: |
f0fba2ad LG |
576 | if (codec_dai->driver->ops->shutdown) |
577 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
bb1c0478 | 578 | |
cb666e5b | 579 | codec_dai_err: |
f0fba2ad LG |
580 | if (platform->driver->ops->close) |
581 | platform->driver->ops->close(substream); | |
db2a4165 FM |
582 | |
583 | platform_err: | |
f0fba2ad LG |
584 | if (cpu_dai->driver->ops->shutdown) |
585 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 FM |
586 | out: |
587 | mutex_unlock(&pcm_mutex); | |
588 | return ret; | |
589 | } | |
590 | ||
591 | /* | |
3a4fa0a2 | 592 | * Power down the audio subsystem pmdown_time msecs after close is called. |
db2a4165 FM |
593 | * This is to ensure there are no pops or clicks in between any music tracks |
594 | * due to DAPM power cycling. | |
595 | */ | |
4484bb2e | 596 | static void close_delayed_work(struct work_struct *work) |
db2a4165 | 597 | { |
f0fba2ad LG |
598 | struct snd_soc_pcm_runtime *rtd = |
599 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
600 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
601 | |
602 | mutex_lock(&pcm_mutex); | |
f0fba2ad LG |
603 | |
604 | pr_debug("pop wq checking: %s status: %s waiting: %s\n", | |
605 | codec_dai->driver->playback.stream_name, | |
606 | codec_dai->playback_active ? "active" : "inactive", | |
607 | codec_dai->pop_wait ? "yes" : "no"); | |
608 | ||
609 | /* are we waiting on this codec DAI stream */ | |
610 | if (codec_dai->pop_wait == 1) { | |
611 | codec_dai->pop_wait = 0; | |
612 | snd_soc_dapm_stream_event(rtd, | |
613 | codec_dai->driver->playback.stream_name, | |
614 | SND_SOC_DAPM_STREAM_STOP); | |
db2a4165 | 615 | } |
f0fba2ad | 616 | |
db2a4165 FM |
617 | mutex_unlock(&pcm_mutex); |
618 | } | |
619 | ||
620 | /* | |
621 | * Called by ALSA when a PCM substream is closed. Private data can be | |
622 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
623 | * shutdown. | |
624 | */ | |
625 | static int soc_codec_close(struct snd_pcm_substream *substream) | |
626 | { | |
627 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
628 | struct snd_soc_platform *platform = rtd->platform; |
629 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
630 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
631 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
632 | |
633 | mutex_lock(&pcm_mutex); | |
634 | ||
14dc5734 | 635 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
f0fba2ad LG |
636 | cpu_dai->playback_active--; |
637 | codec_dai->playback_active--; | |
14dc5734 | 638 | } else { |
f0fba2ad LG |
639 | cpu_dai->capture_active--; |
640 | codec_dai->capture_active--; | |
db2a4165 | 641 | } |
14dc5734 JB |
642 | |
643 | cpu_dai->active--; | |
644 | codec_dai->active--; | |
db2a4165 FM |
645 | codec->active--; |
646 | ||
6010b2da MB |
647 | /* Muting the DAC suppresses artifacts caused during digital |
648 | * shutdown, for example from stopping clocks. | |
649 | */ | |
650 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
651 | snd_soc_dai_digital_mute(codec_dai, 1); | |
652 | ||
f0fba2ad LG |
653 | if (cpu_dai->driver->ops->shutdown) |
654 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
db2a4165 | 655 | |
f0fba2ad LG |
656 | if (codec_dai->driver->ops->shutdown) |
657 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
db2a4165 | 658 | |
f0fba2ad LG |
659 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) |
660 | rtd->dai_link->ops->shutdown(substream); | |
db2a4165 | 661 | |
f0fba2ad LG |
662 | if (platform->driver->ops->close) |
663 | platform->driver->ops->close(substream); | |
664 | cpu_dai->runtime = NULL; | |
db2a4165 FM |
665 | |
666 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
667 | /* start delayed pop wq here for playback streams */ | |
cb666e5b | 668 | codec_dai->pop_wait = 1; |
f0fba2ad LG |
669 | schedule_delayed_work(&rtd->delayed_work, |
670 | msecs_to_jiffies(rtd->pmdown_time)); | |
db2a4165 FM |
671 | } else { |
672 | /* capture streams can be powered down now */ | |
f0fba2ad LG |
673 | snd_soc_dapm_stream_event(rtd, |
674 | codec_dai->driver->capture.stream_name, | |
0b4d221b | 675 | SND_SOC_DAPM_STREAM_STOP); |
db2a4165 FM |
676 | } |
677 | ||
678 | mutex_unlock(&pcm_mutex); | |
679 | return 0; | |
680 | } | |
681 | ||
682 | /* | |
683 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
684 | * rate, etc. This function is non atomic and can be called multiple times, | |
685 | * it can refer to the runtime info. | |
686 | */ | |
687 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
688 | { | |
689 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
690 | struct snd_soc_platform *platform = rtd->platform; |
691 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
692 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
693 | int ret = 0; |
694 | ||
695 | mutex_lock(&pcm_mutex); | |
cb666e5b | 696 | |
f0fba2ad LG |
697 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { |
698 | ret = rtd->dai_link->ops->prepare(substream); | |
cb666e5b LG |
699 | if (ret < 0) { |
700 | printk(KERN_ERR "asoc: machine prepare error\n"); | |
701 | goto out; | |
702 | } | |
703 | } | |
704 | ||
f0fba2ad LG |
705 | if (platform->driver->ops->prepare) { |
706 | ret = platform->driver->ops->prepare(substream); | |
a71a468a LG |
707 | if (ret < 0) { |
708 | printk(KERN_ERR "asoc: platform prepare error\n"); | |
db2a4165 | 709 | goto out; |
a71a468a | 710 | } |
db2a4165 FM |
711 | } |
712 | ||
f0fba2ad LG |
713 | if (codec_dai->driver->ops->prepare) { |
714 | ret = codec_dai->driver->ops->prepare(substream, codec_dai); | |
a71a468a LG |
715 | if (ret < 0) { |
716 | printk(KERN_ERR "asoc: codec DAI prepare error\n"); | |
db2a4165 | 717 | goto out; |
a71a468a | 718 | } |
db2a4165 FM |
719 | } |
720 | ||
f0fba2ad LG |
721 | if (cpu_dai->driver->ops->prepare) { |
722 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); | |
cb666e5b LG |
723 | if (ret < 0) { |
724 | printk(KERN_ERR "asoc: cpu DAI prepare error\n"); | |
725 | goto out; | |
726 | } | |
727 | } | |
db2a4165 | 728 | |
d45f6219 MB |
729 | /* cancel any delayed stream shutdown that is pending */ |
730 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
731 | codec_dai->pop_wait) { | |
732 | codec_dai->pop_wait = 0; | |
f0fba2ad | 733 | cancel_delayed_work(&rtd->delayed_work); |
d45f6219 | 734 | } |
db2a4165 | 735 | |
452c5eaa | 736 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
f0fba2ad LG |
737 | snd_soc_dapm_stream_event(rtd, |
738 | codec_dai->driver->playback.stream_name, | |
452c5eaa MB |
739 | SND_SOC_DAPM_STREAM_START); |
740 | else | |
f0fba2ad LG |
741 | snd_soc_dapm_stream_event(rtd, |
742 | codec_dai->driver->capture.stream_name, | |
452c5eaa | 743 | SND_SOC_DAPM_STREAM_START); |
8c6529db | 744 | |
452c5eaa | 745 | snd_soc_dai_digital_mute(codec_dai, 0); |
db2a4165 FM |
746 | |
747 | out: | |
748 | mutex_unlock(&pcm_mutex); | |
749 | return ret; | |
750 | } | |
751 | ||
752 | /* | |
753 | * Called by ALSA when the hardware params are set by application. This | |
754 | * function can also be called multiple times and can allocate buffers | |
755 | * (using snd_pcm_lib_* ). It's non-atomic. | |
756 | */ | |
757 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
758 | struct snd_pcm_hw_params *params) | |
759 | { | |
760 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
761 | struct snd_soc_platform *platform = rtd->platform; |
762 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
763 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
764 | int ret = 0; |
765 | ||
766 | mutex_lock(&pcm_mutex); | |
767 | ||
f0fba2ad LG |
768 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
769 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
cb666e5b LG |
770 | if (ret < 0) { |
771 | printk(KERN_ERR "asoc: machine hw_params failed\n"); | |
db2a4165 | 772 | goto out; |
cb666e5b | 773 | } |
db2a4165 FM |
774 | } |
775 | ||
f0fba2ad LG |
776 | if (codec_dai->driver->ops->hw_params) { |
777 | ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); | |
db2a4165 FM |
778 | if (ret < 0) { |
779 | printk(KERN_ERR "asoc: can't set codec %s hw params\n", | |
cb666e5b LG |
780 | codec_dai->name); |
781 | goto codec_err; | |
db2a4165 FM |
782 | } |
783 | } | |
784 | ||
f0fba2ad LG |
785 | if (cpu_dai->driver->ops->hw_params) { |
786 | ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai); | |
db2a4165 | 787 | if (ret < 0) { |
3ff3f64b | 788 | printk(KERN_ERR "asoc: interface %s hw params failed\n", |
cb666e5b | 789 | cpu_dai->name); |
db2a4165 FM |
790 | goto interface_err; |
791 | } | |
792 | } | |
793 | ||
f0fba2ad LG |
794 | if (platform->driver->ops->hw_params) { |
795 | ret = platform->driver->ops->hw_params(substream, params); | |
db2a4165 | 796 | if (ret < 0) { |
3ff3f64b | 797 | printk(KERN_ERR "asoc: platform %s hw params failed\n", |
db2a4165 FM |
798 | platform->name); |
799 | goto platform_err; | |
800 | } | |
801 | } | |
802 | ||
f0fba2ad | 803 | rtd->rate = params_rate(params); |
06f409d7 | 804 | |
db2a4165 FM |
805 | out: |
806 | mutex_unlock(&pcm_mutex); | |
807 | return ret; | |
808 | ||
db2a4165 | 809 | platform_err: |
f0fba2ad LG |
810 | if (cpu_dai->driver->ops->hw_free) |
811 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
812 | |
813 | interface_err: | |
f0fba2ad LG |
814 | if (codec_dai->driver->ops->hw_free) |
815 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
cb666e5b LG |
816 | |
817 | codec_err: | |
f0fba2ad LG |
818 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
819 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
820 | |
821 | mutex_unlock(&pcm_mutex); | |
822 | return ret; | |
823 | } | |
824 | ||
825 | /* | |
826 | * Free's resources allocated by hw_params, can be called multiple times | |
827 | */ | |
828 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
829 | { | |
830 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
831 | struct snd_soc_platform *platform = rtd->platform; |
832 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
833 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
834 | struct snd_soc_codec *codec = rtd->codec; | |
db2a4165 FM |
835 | |
836 | mutex_lock(&pcm_mutex); | |
837 | ||
838 | /* apply codec digital mute */ | |
8c6529db LG |
839 | if (!codec->active) |
840 | snd_soc_dai_digital_mute(codec_dai, 1); | |
db2a4165 FM |
841 | |
842 | /* free any machine hw params */ | |
f0fba2ad LG |
843 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
844 | rtd->dai_link->ops->hw_free(substream); | |
db2a4165 FM |
845 | |
846 | /* free any DMA resources */ | |
f0fba2ad LG |
847 | if (platform->driver->ops->hw_free) |
848 | platform->driver->ops->hw_free(substream); | |
db2a4165 FM |
849 | |
850 | /* now free hw params for the DAI's */ | |
f0fba2ad LG |
851 | if (codec_dai->driver->ops->hw_free) |
852 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
db2a4165 | 853 | |
f0fba2ad LG |
854 | if (cpu_dai->driver->ops->hw_free) |
855 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); | |
db2a4165 FM |
856 | |
857 | mutex_unlock(&pcm_mutex); | |
858 | return 0; | |
859 | } | |
860 | ||
861 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
862 | { | |
863 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
864 | struct snd_soc_platform *platform = rtd->platform; |
865 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
866 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
db2a4165 FM |
867 | int ret; |
868 | ||
f0fba2ad LG |
869 | if (codec_dai->driver->ops->trigger) { |
870 | ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai); | |
db2a4165 FM |
871 | if (ret < 0) |
872 | return ret; | |
873 | } | |
874 | ||
f0fba2ad LG |
875 | if (platform->driver->ops->trigger) { |
876 | ret = platform->driver->ops->trigger(substream, cmd); | |
db2a4165 FM |
877 | if (ret < 0) |
878 | return ret; | |
879 | } | |
880 | ||
f0fba2ad LG |
881 | if (cpu_dai->driver->ops->trigger) { |
882 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); | |
db2a4165 FM |
883 | if (ret < 0) |
884 | return ret; | |
885 | } | |
886 | return 0; | |
887 | } | |
888 | ||
377b6f62 PU |
889 | /* |
890 | * soc level wrapper for pointer callback | |
258020d0 PU |
891 | * If cpu_dai, codec_dai, platform driver has the delay callback, than |
892 | * the runtime->delay will be updated accordingly. | |
377b6f62 PU |
893 | */ |
894 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
895 | { | |
896 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
897 | struct snd_soc_platform *platform = rtd->platform; |
898 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
899 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
258020d0 | 900 | struct snd_pcm_runtime *runtime = substream->runtime; |
377b6f62 | 901 | snd_pcm_uframes_t offset = 0; |
258020d0 | 902 | snd_pcm_sframes_t delay = 0; |
377b6f62 | 903 | |
f0fba2ad LG |
904 | if (platform->driver->ops->pointer) |
905 | offset = platform->driver->ops->pointer(substream); | |
377b6f62 | 906 | |
f0fba2ad LG |
907 | if (cpu_dai->driver->ops->delay) |
908 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); | |
258020d0 | 909 | |
f0fba2ad LG |
910 | if (codec_dai->driver->ops->delay) |
911 | delay += codec_dai->driver->ops->delay(substream, codec_dai); | |
258020d0 | 912 | |
f0fba2ad LG |
913 | if (platform->driver->delay) |
914 | delay += platform->driver->delay(substream, codec_dai); | |
258020d0 PU |
915 | |
916 | runtime->delay = delay; | |
917 | ||
377b6f62 PU |
918 | return offset; |
919 | } | |
920 | ||
db2a4165 FM |
921 | /* ASoC PCM operations */ |
922 | static struct snd_pcm_ops soc_pcm_ops = { | |
923 | .open = soc_pcm_open, | |
924 | .close = soc_codec_close, | |
925 | .hw_params = soc_pcm_hw_params, | |
926 | .hw_free = soc_pcm_hw_free, | |
927 | .prepare = soc_pcm_prepare, | |
928 | .trigger = soc_pcm_trigger, | |
377b6f62 | 929 | .pointer = soc_pcm_pointer, |
db2a4165 FM |
930 | }; |
931 | ||
932 | #ifdef CONFIG_PM | |
933 | /* powers down audio subsystem for suspend */ | |
416356fc | 934 | static int soc_suspend(struct device *dev) |
db2a4165 | 935 | { |
416356fc | 936 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad | 937 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 FM |
938 | int i; |
939 | ||
e3509ff0 DM |
940 | /* If the initialization of this soc device failed, there is no codec |
941 | * associated with it. Just bail out in this case. | |
942 | */ | |
f0fba2ad | 943 | if (list_empty(&card->codec_dev_list)) |
e3509ff0 DM |
944 | return 0; |
945 | ||
6ed25978 AG |
946 | /* Due to the resume being scheduled into a workqueue we could |
947 | * suspend before that's finished - wait for it to complete. | |
948 | */ | |
f0fba2ad LG |
949 | snd_power_lock(card->snd_card); |
950 | snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0); | |
951 | snd_power_unlock(card->snd_card); | |
6ed25978 AG |
952 | |
953 | /* we're going to block userspace touching us until resume completes */ | |
f0fba2ad | 954 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot); |
6ed25978 | 955 | |
db2a4165 | 956 | /* mute any active DAC's */ |
f0fba2ad LG |
957 | for (i = 0; i < card->num_rtd; i++) { |
958 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
959 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 960 | |
f0fba2ad | 961 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
962 | continue; |
963 | ||
f0fba2ad LG |
964 | if (drv->ops->digital_mute && dai->playback_active) |
965 | drv->ops->digital_mute(dai, 1); | |
db2a4165 FM |
966 | } |
967 | ||
4ccab3e7 | 968 | /* suspend all pcms */ |
f0fba2ad LG |
969 | for (i = 0; i < card->num_rtd; i++) { |
970 | if (card->rtd[i].dai_link->ignore_suspend) | |
3efab7dc MB |
971 | continue; |
972 | ||
f0fba2ad | 973 | snd_pcm_suspend_all(card->rtd[i].pcm); |
3efab7dc | 974 | } |
4ccab3e7 | 975 | |
87506549 | 976 | if (card->suspend_pre) |
416356fc | 977 | card->suspend_pre(pdev, PMSG_SUSPEND); |
db2a4165 | 978 | |
f0fba2ad LG |
979 | for (i = 0; i < card->num_rtd; i++) { |
980 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
981 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 982 | |
f0fba2ad | 983 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
984 | continue; |
985 | ||
f0fba2ad LG |
986 | if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control) |
987 | cpu_dai->driver->suspend(cpu_dai); | |
988 | if (platform->driver->suspend && !platform->suspended) { | |
989 | platform->driver->suspend(cpu_dai); | |
990 | platform->suspended = 1; | |
991 | } | |
db2a4165 FM |
992 | } |
993 | ||
994 | /* close any waiting streams and save state */ | |
f0fba2ad LG |
995 | for (i = 0; i < card->num_rtd; i++) { |
996 | run_delayed_work(&card->rtd[i].delayed_work); | |
997 | card->rtd[i].codec->suspend_bias_level = card->rtd[i].codec->bias_level; | |
998 | } | |
db2a4165 | 999 | |
f0fba2ad LG |
1000 | for (i = 0; i < card->num_rtd; i++) { |
1001 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1002 | |
f0fba2ad | 1003 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1004 | continue; |
1005 | ||
f0fba2ad LG |
1006 | if (driver->playback.stream_name != NULL) |
1007 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1008 | SND_SOC_DAPM_STREAM_SUSPEND); |
f0fba2ad LG |
1009 | |
1010 | if (driver->capture.stream_name != NULL) | |
1011 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1012 | SND_SOC_DAPM_STREAM_SUSPEND); |
1013 | } | |
1014 | ||
f0fba2ad LG |
1015 | /* suspend all CODECs */ |
1016 | for (i = 0; i < card->num_rtd; i++) { | |
1017 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1018 | /* If there are paths active then the CODEC will be held with | |
1019 | * bias _ON and should not be suspended. */ | |
1020 | if (!codec->suspended && codec->driver->suspend) { | |
1021 | switch (codec->bias_level) { | |
1022 | case SND_SOC_BIAS_STANDBY: | |
1023 | case SND_SOC_BIAS_OFF: | |
1024 | codec->driver->suspend(codec, PMSG_SUSPEND); | |
1025 | codec->suspended = 1; | |
1026 | break; | |
1027 | default: | |
1028 | dev_dbg(codec->dev, "CODEC is on over suspend\n"); | |
1029 | break; | |
1030 | } | |
1547aba9 MB |
1031 | } |
1032 | } | |
db2a4165 | 1033 | |
f0fba2ad LG |
1034 | for (i = 0; i < card->num_rtd; i++) { |
1035 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1036 | |
f0fba2ad | 1037 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1038 | continue; |
1039 | ||
f0fba2ad LG |
1040 | if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control) |
1041 | cpu_dai->driver->suspend(cpu_dai); | |
db2a4165 FM |
1042 | } |
1043 | ||
87506549 | 1044 | if (card->suspend_post) |
416356fc | 1045 | card->suspend_post(pdev, PMSG_SUSPEND); |
db2a4165 FM |
1046 | |
1047 | return 0; | |
1048 | } | |
1049 | ||
6ed25978 AG |
1050 | /* deferred resume work, so resume can complete before we finished |
1051 | * setting our codec back up, which can be very slow on I2C | |
1052 | */ | |
1053 | static void soc_resume_deferred(struct work_struct *work) | |
db2a4165 | 1054 | { |
f0fba2ad LG |
1055 | struct snd_soc_card *card = |
1056 | container_of(work, struct snd_soc_card, deferred_resume_work); | |
1057 | struct platform_device *pdev = to_platform_device(card->dev); | |
db2a4165 FM |
1058 | int i; |
1059 | ||
6ed25978 AG |
1060 | /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time, |
1061 | * so userspace apps are blocked from touching us | |
1062 | */ | |
1063 | ||
f0fba2ad | 1064 | dev_dbg(card->dev, "starting resume work\n"); |
6ed25978 | 1065 | |
9949788b | 1066 | /* Bring us up into D2 so that DAPM starts enabling things */ |
f0fba2ad | 1067 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2); |
9949788b | 1068 | |
87506549 MB |
1069 | if (card->resume_pre) |
1070 | card->resume_pre(pdev); | |
db2a4165 | 1071 | |
f0fba2ad LG |
1072 | /* resume AC97 DAIs */ |
1073 | for (i = 0; i < card->num_rtd; i++) { | |
1074 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
3efab7dc | 1075 | |
f0fba2ad | 1076 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1077 | continue; |
1078 | ||
f0fba2ad LG |
1079 | if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control) |
1080 | cpu_dai->driver->resume(cpu_dai); | |
1081 | } | |
1082 | ||
1083 | for (i = 0; i < card->num_rtd; i++) { | |
1084 | struct snd_soc_codec *codec = card->rtd[i].codec; | |
1085 | /* If the CODEC was idle over suspend then it will have been | |
1086 | * left with bias OFF or STANDBY and suspended so we must now | |
1087 | * resume. Otherwise the suspend was suppressed. | |
1088 | */ | |
1089 | if (codec->driver->resume && codec->suspended) { | |
1090 | switch (codec->bias_level) { | |
1091 | case SND_SOC_BIAS_STANDBY: | |
1092 | case SND_SOC_BIAS_OFF: | |
1093 | codec->driver->resume(codec); | |
1094 | codec->suspended = 0; | |
1095 | break; | |
1096 | default: | |
1097 | dev_dbg(codec->dev, "CODEC was on over suspend\n"); | |
1098 | break; | |
1099 | } | |
1547aba9 MB |
1100 | } |
1101 | } | |
db2a4165 | 1102 | |
f0fba2ad LG |
1103 | for (i = 0; i < card->num_rtd; i++) { |
1104 | struct snd_soc_dai_driver *driver = card->rtd[i].codec_dai->driver; | |
3efab7dc | 1105 | |
f0fba2ad | 1106 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1107 | continue; |
1108 | ||
f0fba2ad LG |
1109 | if (driver->playback.stream_name != NULL) |
1110 | snd_soc_dapm_stream_event(&card->rtd[i], driver->playback.stream_name, | |
db2a4165 | 1111 | SND_SOC_DAPM_STREAM_RESUME); |
f0fba2ad LG |
1112 | |
1113 | if (driver->capture.stream_name != NULL) | |
1114 | snd_soc_dapm_stream_event(&card->rtd[i], driver->capture.stream_name, | |
db2a4165 FM |
1115 | SND_SOC_DAPM_STREAM_RESUME); |
1116 | } | |
1117 | ||
3ff3f64b | 1118 | /* unmute any active DACs */ |
f0fba2ad LG |
1119 | for (i = 0; i < card->num_rtd; i++) { |
1120 | struct snd_soc_dai *dai = card->rtd[i].codec_dai; | |
1121 | struct snd_soc_dai_driver *drv = dai->driver; | |
3efab7dc | 1122 | |
f0fba2ad | 1123 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1124 | continue; |
1125 | ||
f0fba2ad LG |
1126 | if (drv->ops->digital_mute && dai->playback_active) |
1127 | drv->ops->digital_mute(dai, 0); | |
db2a4165 FM |
1128 | } |
1129 | ||
f0fba2ad LG |
1130 | for (i = 0; i < card->num_rtd; i++) { |
1131 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1132 | struct snd_soc_platform *platform = card->rtd[i].platform; | |
3efab7dc | 1133 | |
f0fba2ad | 1134 | if (card->rtd[i].dai_link->ignore_suspend) |
3efab7dc MB |
1135 | continue; |
1136 | ||
f0fba2ad LG |
1137 | if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control) |
1138 | cpu_dai->driver->resume(cpu_dai); | |
1139 | if (platform->driver->resume && platform->suspended) { | |
1140 | platform->driver->resume(cpu_dai); | |
1141 | platform->suspended = 0; | |
1142 | } | |
db2a4165 FM |
1143 | } |
1144 | ||
87506549 MB |
1145 | if (card->resume_post) |
1146 | card->resume_post(pdev); | |
db2a4165 | 1147 | |
f0fba2ad | 1148 | dev_dbg(card->dev, "resume work completed\n"); |
6ed25978 AG |
1149 | |
1150 | /* userspace can access us now we are back as we were before */ | |
f0fba2ad | 1151 | snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0); |
6ed25978 AG |
1152 | } |
1153 | ||
1154 | /* powers up audio subsystem after a suspend */ | |
416356fc | 1155 | static int soc_resume(struct device *dev) |
6ed25978 | 1156 | { |
416356fc | 1157 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1158 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1159 | int i; | |
b9dd94a8 | 1160 | |
64ab9baa MB |
1161 | /* AC97 devices might have other drivers hanging off them so |
1162 | * need to resume immediately. Other drivers don't have that | |
1163 | * problem and may take a substantial amount of time to resume | |
1164 | * due to I/O costs and anti-pop so handle them out of line. | |
1165 | */ | |
f0fba2ad LG |
1166 | for (i = 0; i < card->num_rtd; i++) { |
1167 | struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai; | |
1168 | if (cpu_dai->driver->ac97_control) { | |
1169 | dev_dbg(dev, "Resuming AC97 immediately\n"); | |
1170 | soc_resume_deferred(&card->deferred_resume_work); | |
1171 | } else { | |
1172 | dev_dbg(dev, "Scheduling resume work\n"); | |
1173 | if (!schedule_work(&card->deferred_resume_work)) | |
1174 | dev_err(dev, "resume work item may be lost\n"); | |
1175 | } | |
64ab9baa | 1176 | } |
6ed25978 | 1177 | |
db2a4165 FM |
1178 | return 0; |
1179 | } | |
db2a4165 FM |
1180 | #else |
1181 | #define soc_suspend NULL | |
1182 | #define soc_resume NULL | |
1183 | #endif | |
1184 | ||
02a06d30 BS |
1185 | static struct snd_soc_dai_ops null_dai_ops = { |
1186 | }; | |
1187 | ||
f0fba2ad | 1188 | static int soc_bind_dai_link(struct snd_soc_card *card, int num) |
db2a4165 | 1189 | { |
f0fba2ad LG |
1190 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; |
1191 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
fe3e78e0 | 1192 | struct snd_soc_codec *codec; |
435c5e25 | 1193 | struct snd_soc_platform *platform; |
f0fba2ad | 1194 | struct snd_soc_dai *codec_dai, *cpu_dai; |
435c5e25 | 1195 | |
f0fba2ad LG |
1196 | if (rtd->complete) |
1197 | return 1; | |
1198 | dev_dbg(card->dev, "binding %s at idx %d\n", dai_link->name, num); | |
435c5e25 | 1199 | |
f0fba2ad LG |
1200 | /* do we already have the CPU DAI for this link ? */ |
1201 | if (rtd->cpu_dai) { | |
1202 | goto find_codec; | |
1203 | } | |
1204 | /* no, then find CPU DAI from registered DAIs*/ | |
1205 | list_for_each_entry(cpu_dai, &dai_list, list) { | |
1206 | if (!strcmp(cpu_dai->name, dai_link->cpu_dai_name)) { | |
1207 | ||
1208 | if (!try_module_get(cpu_dai->dev->driver->owner)) | |
1209 | return -ENODEV; | |
1210 | ||
1211 | rtd->cpu_dai = cpu_dai; | |
1212 | goto find_codec; | |
435c5e25 | 1213 | } |
435c5e25 | 1214 | } |
f0fba2ad LG |
1215 | dev_dbg(card->dev, "CPU DAI %s not registered\n", |
1216 | dai_link->cpu_dai_name); | |
6308419a | 1217 | |
f0fba2ad LG |
1218 | find_codec: |
1219 | /* do we already have the CODEC for this link ? */ | |
1220 | if (rtd->codec) { | |
1221 | goto find_platform; | |
1222 | } | |
1223 | ||
1224 | /* no, then find CODEC from registered CODECs*/ | |
1225 | list_for_each_entry(codec, &codec_list, list) { | |
1226 | if (!strcmp(codec->name, dai_link->codec_name)) { | |
1227 | rtd->codec = codec; | |
1228 | ||
1229 | if (!try_module_get(codec->dev->driver->owner)) | |
1230 | return -ENODEV; | |
1231 | ||
1232 | /* CODEC found, so find CODEC DAI from registered DAIs from this CODEC*/ | |
1233 | list_for_each_entry(codec_dai, &dai_list, list) { | |
1234 | if (codec->dev == codec_dai->dev && | |
1235 | !strcmp(codec_dai->name, dai_link->codec_dai_name)) { | |
1236 | rtd->codec_dai = codec_dai; | |
1237 | goto find_platform; | |
1238 | } | |
435c5e25 | 1239 | } |
f0fba2ad LG |
1240 | dev_dbg(card->dev, "CODEC DAI %s not registered\n", |
1241 | dai_link->codec_dai_name); | |
1242 | ||
1243 | goto find_platform; | |
435c5e25 | 1244 | } |
f0fba2ad LG |
1245 | } |
1246 | dev_dbg(card->dev, "CODEC %s not registered\n", | |
1247 | dai_link->codec_name); | |
6b05eda6 | 1248 | |
f0fba2ad LG |
1249 | find_platform: |
1250 | /* do we already have the CODEC DAI for this link ? */ | |
1251 | if (rtd->platform) { | |
1252 | goto out; | |
c5af3a2e | 1253 | } |
f0fba2ad LG |
1254 | /* no, then find CPU DAI from registered DAIs*/ |
1255 | list_for_each_entry(platform, &platform_list, list) { | |
1256 | if (!strcmp(platform->name, dai_link->platform_name)) { | |
c5af3a2e | 1257 | |
f0fba2ad LG |
1258 | if (!try_module_get(platform->dev->driver->owner)) |
1259 | return -ENODEV; | |
1260 | ||
1261 | rtd->platform = platform; | |
1262 | goto out; | |
1263 | } | |
02a06d30 BS |
1264 | } |
1265 | ||
f0fba2ad LG |
1266 | dev_dbg(card->dev, "platform %s not registered\n", |
1267 | dai_link->platform_name); | |
1268 | return 0; | |
1269 | ||
1270 | out: | |
1271 | /* mark rtd as complete if we found all 4 of our client devices */ | |
1272 | if (rtd->codec && rtd->codec_dai && rtd->platform && rtd->cpu_dai) { | |
1273 | rtd->complete = 1; | |
1274 | card->num_rtd++; | |
1275 | } | |
1276 | return 1; | |
1277 | } | |
1278 | ||
1279 | static void soc_remove_dai_link(struct snd_soc_card *card, int num) | |
1280 | { | |
1281 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1282 | struct snd_soc_codec *codec = rtd->codec; | |
1283 | struct snd_soc_platform *platform = rtd->platform; | |
1284 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1285 | int err; | |
1286 | ||
1287 | /* unregister the rtd device */ | |
1288 | if (rtd->dev_registered) { | |
1289 | device_remove_file(&rtd->dev, &dev_attr_pmdown_time); | |
1290 | device_unregister(&rtd->dev); | |
1291 | rtd->dev_registered = 0; | |
1292 | } | |
1293 | ||
1294 | /* remove the CODEC DAI */ | |
1295 | if (codec_dai && codec_dai->probed) { | |
1296 | if (codec_dai->driver->remove) { | |
1297 | err = codec_dai->driver->remove(codec_dai); | |
1298 | if (err < 0) | |
1299 | printk(KERN_ERR "asoc: failed to remove %s\n", codec_dai->name); | |
6b05eda6 | 1300 | } |
f0fba2ad LG |
1301 | codec_dai->probed = 0; |
1302 | list_del(&codec_dai->card_list); | |
1303 | } | |
6b05eda6 | 1304 | |
f0fba2ad LG |
1305 | /* remove the platform */ |
1306 | if (platform && platform->probed) { | |
1307 | if (platform->driver->remove) { | |
1308 | err = platform->driver->remove(platform); | |
1309 | if (err < 0) | |
1310 | printk(KERN_ERR "asoc: failed to remove %s\n", platform->name); | |
1311 | } | |
1312 | platform->probed = 0; | |
1313 | list_del(&platform->card_list); | |
1314 | module_put(platform->dev->driver->owner); | |
1315 | } | |
435c5e25 | 1316 | |
f0fba2ad LG |
1317 | /* remove the CODEC */ |
1318 | if (codec && codec->probed) { | |
1319 | if (codec->driver->remove) { | |
1320 | err = codec->driver->remove(codec); | |
1321 | if (err < 0) | |
1322 | printk(KERN_ERR "asoc: failed to remove %s\n", codec->name); | |
1323 | } | |
435c5e25 | 1324 | |
f0fba2ad LG |
1325 | /* Make sure all DAPM widgets are freed */ |
1326 | snd_soc_dapm_free(codec); | |
96dd3622 | 1327 | |
f0fba2ad LG |
1328 | soc_cleanup_codec_debugfs(codec); |
1329 | device_remove_file(&rtd->dev, &dev_attr_codec_reg); | |
1330 | codec->probed = 0; | |
1331 | list_del(&codec->card_list); | |
1332 | module_put(codec->dev->driver->owner); | |
db2a4165 FM |
1333 | } |
1334 | ||
f0fba2ad LG |
1335 | /* remove the cpu_dai */ |
1336 | if (cpu_dai && cpu_dai->probed) { | |
1337 | if (cpu_dai->driver->remove) { | |
1338 | err = cpu_dai->driver->remove(cpu_dai); | |
1339 | if (err < 0) | |
1340 | printk(KERN_ERR "asoc: failed to remove %s\n", cpu_dai->name); | |
db2a4165 | 1341 | } |
f0fba2ad LG |
1342 | cpu_dai->probed = 0; |
1343 | list_del(&cpu_dai->card_list); | |
1344 | module_put(cpu_dai->dev->driver->owner); | |
db2a4165 | 1345 | } |
f0fba2ad | 1346 | } |
db2a4165 | 1347 | |
f0fba2ad LG |
1348 | static void rtd_release(struct device *dev) {} |
1349 | ||
1350 | static int soc_probe_dai_link(struct snd_soc_card *card, int num) | |
1351 | { | |
1352 | struct snd_soc_dai_link *dai_link = &card->dai_link[num]; | |
1353 | struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; | |
1354 | struct snd_soc_codec *codec = rtd->codec; | |
1355 | struct snd_soc_platform *platform = rtd->platform; | |
1356 | struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai; | |
1357 | int ret; | |
1358 | ||
1359 | dev_dbg(card->dev, "probe %s dai link %d\n", card->name, num); | |
1360 | ||
1361 | /* config components */ | |
1362 | codec_dai->codec = codec; | |
1363 | codec->card = card; | |
1364 | cpu_dai->platform = platform; | |
1365 | rtd->card = card; | |
1366 | rtd->dev.parent = card->dev; | |
1367 | codec_dai->card = card; | |
1368 | cpu_dai->card = card; | |
1369 | ||
1370 | /* set default power off timeout */ | |
1371 | rtd->pmdown_time = pmdown_time; | |
1372 | ||
1373 | /* probe the cpu_dai */ | |
1374 | if (!cpu_dai->probed) { | |
1375 | if (cpu_dai->driver->probe) { | |
1376 | ret = cpu_dai->driver->probe(cpu_dai); | |
1377 | if (ret < 0) { | |
1378 | printk(KERN_ERR "asoc: failed to probe CPU DAI %s\n", | |
1379 | cpu_dai->name); | |
1380 | return ret; | |
1381 | } | |
1382 | } | |
1383 | cpu_dai->probed = 1; | |
1384 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1385 | list_add(&cpu_dai->card_list, &card->dai_dev_list); | |
db2a4165 FM |
1386 | } |
1387 | ||
f0fba2ad LG |
1388 | /* probe the CODEC */ |
1389 | if (!codec->probed) { | |
1390 | if (codec->driver->probe) { | |
1391 | ret = codec->driver->probe(codec); | |
1392 | if (ret < 0) { | |
1393 | printk(KERN_ERR "asoc: failed to probe CODEC %s\n", | |
1394 | codec->name); | |
1395 | return ret; | |
1396 | } | |
1397 | } | |
13cb61f8 MB |
1398 | |
1399 | soc_init_codec_debugfs(codec); | |
1400 | ||
f0fba2ad LG |
1401 | /* mark codec as probed and add to card codec list */ |
1402 | codec->probed = 1; | |
1403 | list_add(&codec->card_list, &card->codec_dev_list); | |
db2a4165 FM |
1404 | } |
1405 | ||
f0fba2ad LG |
1406 | /* probe the platform */ |
1407 | if (!platform->probed) { | |
1408 | if (platform->driver->probe) { | |
1409 | ret = platform->driver->probe(platform); | |
1410 | if (ret < 0) { | |
1411 | printk(KERN_ERR "asoc: failed to probe platform %s\n", | |
1412 | platform->name); | |
1413 | return ret; | |
1414 | } | |
1415 | } | |
1416 | /* mark platform as probed and add to card platform list */ | |
1417 | platform->probed = 1; | |
1418 | list_add(&platform->card_list, &card->platform_dev_list); | |
1419 | } | |
6ed25978 | 1420 | |
f0fba2ad LG |
1421 | /* probe the CODEC DAI */ |
1422 | if (!codec_dai->probed) { | |
1423 | if (codec_dai->driver->probe) { | |
1424 | ret = codec_dai->driver->probe(codec_dai); | |
fe3e78e0 | 1425 | if (ret < 0) { |
f0fba2ad LG |
1426 | printk(KERN_ERR "asoc: failed to probe CODEC DAI %s\n", |
1427 | codec_dai->name); | |
1428 | return ret; | |
fe3e78e0 MB |
1429 | } |
1430 | } | |
f0fba2ad LG |
1431 | |
1432 | /* mark cpu_dai as probed and add to card cpu_dai list */ | |
1433 | codec_dai->probed = 1; | |
1434 | list_add(&codec_dai->card_list, &card->dai_dev_list); | |
fe3e78e0 MB |
1435 | } |
1436 | ||
f0fba2ad LG |
1437 | /* DAPM dai link stream work */ |
1438 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
1439 | ||
1440 | /* now that all clients have probed, initialise the DAI link */ | |
1441 | if (dai_link->init) { | |
1442 | ret = dai_link->init(rtd); | |
1443 | if (ret < 0) { | |
1444 | printk(KERN_ERR "asoc: failed to init %s\n", dai_link->stream_name); | |
1445 | return ret; | |
1446 | } | |
1447 | } | |
fe3e78e0 MB |
1448 | |
1449 | /* Make sure all DAPM widgets are instantiated */ | |
1450 | snd_soc_dapm_new_widgets(codec); | |
f0fba2ad | 1451 | snd_soc_dapm_sync(codec); |
fe3e78e0 | 1452 | |
f0fba2ad | 1453 | /* register the rtd device */ |
f0fba2ad LG |
1454 | rtd->dev.release = rtd_release; |
1455 | rtd->dev.init_name = dai_link->name; | |
1456 | ret = device_register(&rtd->dev); | |
fe3e78e0 | 1457 | if (ret < 0) { |
f0fba2ad LG |
1458 | printk(KERN_ERR "asoc: failed to register DAI runtime device %d\n", ret); |
1459 | return ret; | |
fe3e78e0 MB |
1460 | } |
1461 | ||
f0fba2ad LG |
1462 | rtd->dev_registered = 1; |
1463 | ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time); | |
1464 | if (ret < 0) | |
1465 | printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n"); | |
1466 | ||
1467 | /* add DAPM sysfs entries for this codec */ | |
1468 | ret = snd_soc_dapm_sys_add(&rtd->dev); | |
1469 | if (ret < 0) | |
1470 | printk(KERN_WARNING "asoc: failed to add codec dapm sysfs entries\n"); | |
1471 | ||
1472 | /* add codec sysfs entries */ | |
1473 | ret = device_create_file(&rtd->dev, &dev_attr_codec_reg); | |
1474 | if (ret < 0) | |
1475 | printk(KERN_WARNING "asoc: failed to add codec sysfs files\n"); | |
1476 | ||
f0fba2ad LG |
1477 | /* create the pcm */ |
1478 | ret = soc_new_pcm(rtd, num); | |
1479 | if (ret < 0) { | |
1480 | printk(KERN_ERR "asoc: can't create pcm %s\n", dai_link->stream_name); | |
1481 | return ret; | |
1482 | } | |
1483 | ||
1484 | /* add platform data for AC97 devices */ | |
1485 | if (rtd->codec_dai->driver->ac97_control) | |
1486 | snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata); | |
1487 | ||
1488 | return 0; | |
1489 | } | |
1490 | ||
fe3e78e0 | 1491 | #ifdef CONFIG_SND_SOC_AC97_BUS |
f0fba2ad LG |
1492 | static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) |
1493 | { | |
1494 | int ret; | |
1495 | ||
fe3e78e0 MB |
1496 | /* Only instantiate AC97 if not already done by the adaptor |
1497 | * for the generic AC97 subsystem. | |
1498 | */ | |
f0fba2ad | 1499 | if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { |
0562f788 MW |
1500 | /* |
1501 | * It is possible that the AC97 device is already registered to | |
1502 | * the device subsystem. This happens when the device is created | |
1503 | * via snd_ac97_mixer(). Currently only SoC codec that does so | |
1504 | * is the generic AC97 glue but others migh emerge. | |
1505 | * | |
1506 | * In those cases we don't try to register the device again. | |
1507 | */ | |
1508 | if (!rtd->codec->ac97_created) | |
1509 | return 0; | |
f0fba2ad LG |
1510 | |
1511 | ret = soc_ac97_dev_register(rtd->codec); | |
fe3e78e0 MB |
1512 | if (ret < 0) { |
1513 | printk(KERN_ERR "asoc: AC97 device register failed\n"); | |
f0fba2ad | 1514 | return ret; |
fe3e78e0 | 1515 | } |
f0fba2ad LG |
1516 | |
1517 | rtd->codec->ac97_registered = 1; | |
fe3e78e0 | 1518 | } |
f0fba2ad LG |
1519 | return 0; |
1520 | } | |
1521 | ||
1522 | static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) | |
1523 | { | |
1524 | if (codec->ac97_registered) { | |
1525 | soc_ac97_dev_unregister(codec); | |
1526 | codec->ac97_registered = 0; | |
1527 | } | |
1528 | } | |
fe3e78e0 MB |
1529 | #endif |
1530 | ||
f0fba2ad LG |
1531 | static void snd_soc_instantiate_card(struct snd_soc_card *card) |
1532 | { | |
1533 | struct platform_device *pdev = to_platform_device(card->dev); | |
1534 | int ret, i; | |
fe3e78e0 | 1535 | |
f0fba2ad | 1536 | mutex_lock(&card->mutex); |
dbe21408 | 1537 | |
f0fba2ad LG |
1538 | if (card->instantiated) { |
1539 | mutex_unlock(&card->mutex); | |
1540 | return; | |
1541 | } | |
fe3e78e0 | 1542 | |
f0fba2ad LG |
1543 | /* bind DAIs */ |
1544 | for (i = 0; i < card->num_links; i++) | |
1545 | soc_bind_dai_link(card, i); | |
fe3e78e0 | 1546 | |
f0fba2ad LG |
1547 | /* bind completed ? */ |
1548 | if (card->num_rtd != card->num_links) { | |
1549 | mutex_unlock(&card->mutex); | |
1550 | return; | |
1551 | } | |
435c5e25 | 1552 | |
f0fba2ad LG |
1553 | /* card bind complete so register a sound card */ |
1554 | ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
1555 | card->owner, 0, &card->snd_card); | |
1556 | if (ret < 0) { | |
1557 | printk(KERN_ERR "asoc: can't create sound card for card %s\n", | |
1558 | card->name); | |
1559 | mutex_unlock(&card->mutex); | |
1560 | return; | |
1561 | } | |
1562 | card->snd_card->dev = card->dev; | |
1563 | ||
1564 | #ifdef CONFIG_PM | |
1565 | /* deferred resume work */ | |
1566 | INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); | |
1567 | #endif | |
db2a4165 | 1568 | |
f0fba2ad LG |
1569 | /* initialise the sound card only once */ |
1570 | if (card->probe) { | |
1571 | ret = card->probe(pdev); | |
1572 | if (ret < 0) | |
1573 | goto card_probe_error; | |
1574 | } | |
fe3e78e0 | 1575 | |
f0fba2ad LG |
1576 | for (i = 0; i < card->num_links; i++) { |
1577 | ret = soc_probe_dai_link(card, i); | |
1578 | if (ret < 0) { | |
321de0d0 MB |
1579 | pr_err("asoc: failed to instantiate card %s: %d\n", |
1580 | card->name, ret); | |
f0fba2ad LG |
1581 | goto probe_dai_err; |
1582 | } | |
1583 | } | |
db2a4165 | 1584 | |
f0fba2ad LG |
1585 | snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), |
1586 | "%s", card->name); | |
1587 | snprintf(card->snd_card->longname, sizeof(card->snd_card->longname), | |
1588 | "%s", card->name); | |
1589 | ||
1590 | ret = snd_card_register(card->snd_card); | |
1591 | if (ret < 0) { | |
1592 | printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name); | |
1593 | goto probe_dai_err; | |
db2a4165 FM |
1594 | } |
1595 | ||
f0fba2ad LG |
1596 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1597 | /* register any AC97 codecs */ | |
1598 | for (i = 0; i < card->num_rtd; i++) { | |
1599 | ret = soc_register_ac97_dai_link(&card->rtd[i]); | |
1600 | if (ret < 0) { | |
1601 | printk(KERN_ERR "asoc: failed to register AC97 %s\n", card->name); | |
1602 | goto probe_dai_err; | |
1603 | } | |
1604 | } | |
1605 | #endif | |
1606 | ||
1607 | card->instantiated = 1; | |
1608 | mutex_unlock(&card->mutex); | |
1609 | return; | |
1610 | ||
1611 | probe_dai_err: | |
1612 | for (i = 0; i < card->num_links; i++) | |
1613 | soc_remove_dai_link(card, i); | |
1614 | ||
1615 | card_probe_error: | |
87506549 MB |
1616 | if (card->remove) |
1617 | card->remove(pdev); | |
f0fba2ad LG |
1618 | |
1619 | snd_card_free(card->snd_card); | |
1620 | ||
1621 | mutex_unlock(&card->mutex); | |
435c5e25 | 1622 | } |
db2a4165 | 1623 | |
435c5e25 | 1624 | /* |
421f91d2 | 1625 | * Attempt to initialise any uninitialised cards. Must be called with |
435c5e25 MB |
1626 | * client_mutex. |
1627 | */ | |
1628 | static void snd_soc_instantiate_cards(void) | |
1629 | { | |
1630 | struct snd_soc_card *card; | |
1631 | list_for_each_entry(card, &card_list, list) | |
1632 | snd_soc_instantiate_card(card); | |
1633 | } | |
1634 | ||
1635 | /* probes a new socdev */ | |
1636 | static int soc_probe(struct platform_device *pdev) | |
1637 | { | |
f0fba2ad | 1638 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
435c5e25 | 1639 | int ret = 0; |
435c5e25 MB |
1640 | |
1641 | /* Bodge while we unpick instantiation */ | |
1642 | card->dev = &pdev->dev; | |
f0fba2ad LG |
1643 | INIT_LIST_HEAD(&card->dai_dev_list); |
1644 | INIT_LIST_HEAD(&card->codec_dev_list); | |
1645 | INIT_LIST_HEAD(&card->platform_dev_list); | |
1646 | ||
435c5e25 MB |
1647 | ret = snd_soc_register_card(card); |
1648 | if (ret != 0) { | |
1649 | dev_err(&pdev->dev, "Failed to register card\n"); | |
1650 | return ret; | |
1651 | } | |
1652 | ||
1653 | return 0; | |
db2a4165 FM |
1654 | } |
1655 | ||
1656 | /* removes a socdev */ | |
1657 | static int soc_remove(struct platform_device *pdev) | |
1658 | { | |
f0fba2ad | 1659 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
db2a4165 | 1660 | int i; |
db2a4165 | 1661 | |
f0fba2ad | 1662 | if (card->instantiated) { |
914dc182 | 1663 | |
f0fba2ad LG |
1664 | /* make sure any delayed work runs */ |
1665 | for (i = 0; i < card->num_rtd; i++) { | |
1666 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1667 | run_delayed_work(&rtd->delayed_work); | |
b2dfa62c | 1668 | } |
db2a4165 | 1669 | |
f0fba2ad LG |
1670 | /* remove and free each DAI */ |
1671 | for (i = 0; i < card->num_rtd; i++) | |
1672 | soc_remove_dai_link(card, i); | |
1673 | ||
1674 | /* remove the card */ | |
b2dfa62c GL |
1675 | if (card->remove) |
1676 | card->remove(pdev); | |
db2a4165 | 1677 | |
f0fba2ad LG |
1678 | kfree(card->rtd); |
1679 | snd_card_free(card->snd_card); | |
1680 | } | |
c5af3a2e | 1681 | snd_soc_unregister_card(card); |
db2a4165 FM |
1682 | return 0; |
1683 | } | |
1684 | ||
416356fc | 1685 | static int soc_poweroff(struct device *dev) |
51737470 | 1686 | { |
416356fc | 1687 | struct platform_device *pdev = to_platform_device(dev); |
f0fba2ad LG |
1688 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
1689 | int i; | |
51737470 MB |
1690 | |
1691 | if (!card->instantiated) | |
416356fc | 1692 | return 0; |
51737470 MB |
1693 | |
1694 | /* Flush out pmdown_time work - we actually do want to run it | |
1695 | * now, we're shutting down so no imminent restart. */ | |
f0fba2ad LG |
1696 | for (i = 0; i < card->num_rtd; i++) { |
1697 | struct snd_soc_pcm_runtime *rtd = &card->rtd[i]; | |
1698 | run_delayed_work(&rtd->delayed_work); | |
1699 | } | |
51737470 | 1700 | |
f0fba2ad | 1701 | snd_soc_dapm_shutdown(card); |
416356fc MB |
1702 | |
1703 | return 0; | |
51737470 MB |
1704 | } |
1705 | ||
47145210 | 1706 | static const struct dev_pm_ops soc_pm_ops = { |
416356fc MB |
1707 | .suspend = soc_suspend, |
1708 | .resume = soc_resume, | |
1709 | .poweroff = soc_poweroff, | |
1710 | }; | |
1711 | ||
db2a4165 FM |
1712 | /* ASoC platform driver */ |
1713 | static struct platform_driver soc_driver = { | |
1714 | .driver = { | |
1715 | .name = "soc-audio", | |
8b45a209 | 1716 | .owner = THIS_MODULE, |
416356fc | 1717 | .pm = &soc_pm_ops, |
db2a4165 FM |
1718 | }, |
1719 | .probe = soc_probe, | |
1720 | .remove = soc_remove, | |
db2a4165 FM |
1721 | }; |
1722 | ||
1723 | /* create a new pcm */ | |
f0fba2ad LG |
1724 | static int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
1725 | { | |
1726 | struct snd_soc_codec *codec = rtd->codec; | |
1727 | struct snd_soc_platform *platform = rtd->platform; | |
1728 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
1729 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
db2a4165 FM |
1730 | struct snd_pcm *pcm; |
1731 | char new_name[64]; | |
1732 | int ret = 0, playback = 0, capture = 0; | |
1733 | ||
db2a4165 | 1734 | /* check client and interface hw capabilities */ |
40ca1142 | 1735 | snprintf(new_name, sizeof(new_name), "%s %s-%d", |
f0fba2ad | 1736 | rtd->dai_link->stream_name, codec_dai->name, num); |
db2a4165 | 1737 | |
f0fba2ad | 1738 | if (codec_dai->driver->playback.channels_min) |
db2a4165 | 1739 | playback = 1; |
f0fba2ad | 1740 | if (codec_dai->driver->capture.channels_min) |
db2a4165 FM |
1741 | capture = 1; |
1742 | ||
f0fba2ad LG |
1743 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); |
1744 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | |
1745 | num, playback, capture, &pcm); | |
db2a4165 | 1746 | if (ret < 0) { |
f0fba2ad | 1747 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
db2a4165 FM |
1748 | return ret; |
1749 | } | |
1750 | ||
f0fba2ad | 1751 | rtd->pcm = pcm; |
db2a4165 | 1752 | pcm->private_data = rtd; |
f0fba2ad LG |
1753 | soc_pcm_ops.mmap = platform->driver->ops->mmap; |
1754 | soc_pcm_ops.pointer = platform->driver->ops->pointer; | |
1755 | soc_pcm_ops.ioctl = platform->driver->ops->ioctl; | |
1756 | soc_pcm_ops.copy = platform->driver->ops->copy; | |
1757 | soc_pcm_ops.silence = platform->driver->ops->silence; | |
1758 | soc_pcm_ops.ack = platform->driver->ops->ack; | |
1759 | soc_pcm_ops.page = platform->driver->ops->page; | |
db2a4165 FM |
1760 | |
1761 | if (playback) | |
1762 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops); | |
1763 | ||
1764 | if (capture) | |
1765 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops); | |
1766 | ||
f0fba2ad | 1767 | ret = platform->driver->pcm_new(rtd->card->snd_card, codec_dai, pcm); |
db2a4165 FM |
1768 | if (ret < 0) { |
1769 | printk(KERN_ERR "asoc: platform pcm constructor failed\n"); | |
db2a4165 FM |
1770 | return ret; |
1771 | } | |
1772 | ||
f0fba2ad | 1773 | pcm->private_free = platform->driver->pcm_free; |
db2a4165 FM |
1774 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
1775 | cpu_dai->name); | |
1776 | return ret; | |
1777 | } | |
1778 | ||
096e49d5 MB |
1779 | /** |
1780 | * snd_soc_codec_volatile_register: Report if a register is volatile. | |
1781 | * | |
1782 | * @codec: CODEC to query. | |
1783 | * @reg: Register to query. | |
1784 | * | |
1785 | * Boolean function indiciating if a CODEC register is volatile. | |
1786 | */ | |
1787 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg) | |
1788 | { | |
f0fba2ad LG |
1789 | if (codec->driver->volatile_register) |
1790 | return codec->driver->volatile_register(reg); | |
096e49d5 MB |
1791 | else |
1792 | return 0; | |
1793 | } | |
1794 | EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); | |
1795 | ||
db2a4165 FM |
1796 | /** |
1797 | * snd_soc_new_ac97_codec - initailise AC97 device | |
1798 | * @codec: audio codec | |
1799 | * @ops: AC97 bus operations | |
1800 | * @num: AC97 codec number | |
1801 | * | |
1802 | * Initialises AC97 codec resources for use by ad-hoc devices only. | |
1803 | */ | |
1804 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
1805 | struct snd_ac97_bus_ops *ops, int num) | |
1806 | { | |
1807 | mutex_lock(&codec->mutex); | |
1808 | ||
1809 | codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL); | |
1810 | if (codec->ac97 == NULL) { | |
1811 | mutex_unlock(&codec->mutex); | |
1812 | return -ENOMEM; | |
1813 | } | |
1814 | ||
1815 | codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL); | |
1816 | if (codec->ac97->bus == NULL) { | |
1817 | kfree(codec->ac97); | |
1818 | codec->ac97 = NULL; | |
1819 | mutex_unlock(&codec->mutex); | |
1820 | return -ENOMEM; | |
1821 | } | |
1822 | ||
1823 | codec->ac97->bus->ops = ops; | |
1824 | codec->ac97->num = num; | |
0562f788 MW |
1825 | |
1826 | /* | |
1827 | * Mark the AC97 device to be created by us. This way we ensure that the | |
1828 | * device will be registered with the device subsystem later on. | |
1829 | */ | |
1830 | codec->ac97_created = 1; | |
1831 | ||
db2a4165 FM |
1832 | mutex_unlock(&codec->mutex); |
1833 | return 0; | |
1834 | } | |
1835 | EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); | |
1836 | ||
1837 | /** | |
1838 | * snd_soc_free_ac97_codec - free AC97 codec device | |
1839 | * @codec: audio codec | |
1840 | * | |
1841 | * Frees AC97 codec device resources. | |
1842 | */ | |
1843 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) | |
1844 | { | |
1845 | mutex_lock(&codec->mutex); | |
f0fba2ad LG |
1846 | #ifdef CONFIG_SND_SOC_AC97_BUS |
1847 | soc_unregister_ac97_dai_link(codec); | |
1848 | #endif | |
db2a4165 FM |
1849 | kfree(codec->ac97->bus); |
1850 | kfree(codec->ac97); | |
1851 | codec->ac97 = NULL; | |
0562f788 | 1852 | codec->ac97_created = 0; |
db2a4165 FM |
1853 | mutex_unlock(&codec->mutex); |
1854 | } | |
1855 | EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec); | |
1856 | ||
1857 | /** | |
1858 | * snd_soc_update_bits - update codec register bits | |
1859 | * @codec: audio codec | |
1860 | * @reg: codec register | |
1861 | * @mask: register mask | |
1862 | * @value: new value | |
1863 | * | |
1864 | * Writes new register value. | |
1865 | * | |
1866 | * Returns 1 for change else 0. | |
1867 | */ | |
1868 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1869 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1870 | { |
1871 | int change; | |
46f5822f | 1872 | unsigned int old, new; |
db2a4165 | 1873 | |
db2a4165 FM |
1874 | old = snd_soc_read(codec, reg); |
1875 | new = (old & ~mask) | value; | |
1876 | change = old != new; | |
1877 | if (change) | |
1878 | snd_soc_write(codec, reg, new); | |
1879 | ||
db2a4165 FM |
1880 | return change; |
1881 | } | |
1882 | EXPORT_SYMBOL_GPL(snd_soc_update_bits); | |
1883 | ||
6c508c62 EN |
1884 | /** |
1885 | * snd_soc_update_bits_locked - update codec register bits | |
1886 | * @codec: audio codec | |
1887 | * @reg: codec register | |
1888 | * @mask: register mask | |
1889 | * @value: new value | |
1890 | * | |
1891 | * Writes new register value, and takes the codec mutex. | |
1892 | * | |
1893 | * Returns 1 for change else 0. | |
1894 | */ | |
dd1b3d53 MB |
1895 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
1896 | unsigned short reg, unsigned int mask, | |
1897 | unsigned int value) | |
6c508c62 EN |
1898 | { |
1899 | int change; | |
1900 | ||
1901 | mutex_lock(&codec->mutex); | |
1902 | change = snd_soc_update_bits(codec, reg, mask, value); | |
1903 | mutex_unlock(&codec->mutex); | |
1904 | ||
1905 | return change; | |
1906 | } | |
dd1b3d53 | 1907 | EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked); |
6c508c62 | 1908 | |
db2a4165 FM |
1909 | /** |
1910 | * snd_soc_test_bits - test register for change | |
1911 | * @codec: audio codec | |
1912 | * @reg: codec register | |
1913 | * @mask: register mask | |
1914 | * @value: new value | |
1915 | * | |
1916 | * Tests a register with a new value and checks if the new value is | |
1917 | * different from the old value. | |
1918 | * | |
1919 | * Returns 1 for change else 0. | |
1920 | */ | |
1921 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
46f5822f | 1922 | unsigned int mask, unsigned int value) |
db2a4165 FM |
1923 | { |
1924 | int change; | |
46f5822f | 1925 | unsigned int old, new; |
db2a4165 | 1926 | |
db2a4165 FM |
1927 | old = snd_soc_read(codec, reg); |
1928 | new = (old & ~mask) | value; | |
1929 | change = old != new; | |
db2a4165 FM |
1930 | |
1931 | return change; | |
1932 | } | |
1933 | EXPORT_SYMBOL_GPL(snd_soc_test_bits); | |
1934 | ||
db2a4165 FM |
1935 | /** |
1936 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
1937 | * @substream: the pcm substream | |
1938 | * @hw: the hardware parameters | |
1939 | * | |
1940 | * Sets the substream runtime hardware parameters. | |
1941 | */ | |
1942 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
1943 | const struct snd_pcm_hardware *hw) | |
1944 | { | |
1945 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1946 | runtime->hw.info = hw->info; | |
1947 | runtime->hw.formats = hw->formats; | |
1948 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
1949 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
1950 | runtime->hw.periods_min = hw->periods_min; | |
1951 | runtime->hw.periods_max = hw->periods_max; | |
1952 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
1953 | runtime->hw.fifo_size = hw->fifo_size; | |
1954 | return 0; | |
1955 | } | |
1956 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
1957 | ||
1958 | /** | |
1959 | * snd_soc_cnew - create new control | |
1960 | * @_template: control template | |
1961 | * @data: control private data | |
ac11a2b3 | 1962 | * @long_name: control long name |
db2a4165 FM |
1963 | * |
1964 | * Create a new mixer control from a template control. | |
1965 | * | |
1966 | * Returns 0 for success, else error. | |
1967 | */ | |
1968 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
1969 | void *data, char *long_name) | |
1970 | { | |
1971 | struct snd_kcontrol_new template; | |
1972 | ||
1973 | memcpy(&template, _template, sizeof(template)); | |
1974 | if (long_name) | |
1975 | template.name = long_name; | |
db2a4165 FM |
1976 | template.index = 0; |
1977 | ||
1978 | return snd_ctl_new1(&template, data); | |
1979 | } | |
1980 | EXPORT_SYMBOL_GPL(snd_soc_cnew); | |
1981 | ||
3e8e1952 IM |
1982 | /** |
1983 | * snd_soc_add_controls - add an array of controls to a codec. | |
1984 | * Convienience function to add a list of controls. Many codecs were | |
1985 | * duplicating this code. | |
1986 | * | |
1987 | * @codec: codec to add controls to | |
1988 | * @controls: array of controls to add | |
1989 | * @num_controls: number of elements in the array | |
1990 | * | |
1991 | * Return 0 for success, else error. | |
1992 | */ | |
1993 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
1994 | const struct snd_kcontrol_new *controls, int num_controls) | |
1995 | { | |
f0fba2ad | 1996 | struct snd_card *card = codec->card->snd_card; |
3e8e1952 IM |
1997 | int err, i; |
1998 | ||
1999 | for (i = 0; i < num_controls; i++) { | |
2000 | const struct snd_kcontrol_new *control = &controls[i]; | |
2001 | err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL)); | |
2002 | if (err < 0) { | |
082100dc MB |
2003 | dev_err(codec->dev, "%s: Failed to add %s: %d\n", |
2004 | codec->name, control->name, err); | |
3e8e1952 IM |
2005 | return err; |
2006 | } | |
2007 | } | |
2008 | ||
2009 | return 0; | |
2010 | } | |
2011 | EXPORT_SYMBOL_GPL(snd_soc_add_controls); | |
2012 | ||
db2a4165 FM |
2013 | /** |
2014 | * snd_soc_info_enum_double - enumerated double mixer info callback | |
2015 | * @kcontrol: mixer control | |
2016 | * @uinfo: control element information | |
2017 | * | |
2018 | * Callback to provide information about a double enumerated | |
2019 | * mixer control. | |
2020 | * | |
2021 | * Returns 0 for success. | |
2022 | */ | |
2023 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
2024 | struct snd_ctl_elem_info *uinfo) | |
2025 | { | |
2026 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2027 | ||
2028 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2029 | uinfo->count = e->shift_l == e->shift_r ? 1 : 2; | |
f8ba0b7b | 2030 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2031 | |
f8ba0b7b JS |
2032 | if (uinfo->value.enumerated.item > e->max - 1) |
2033 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2034 | strcpy(uinfo->value.enumerated.name, |
2035 | e->texts[uinfo->value.enumerated.item]); | |
2036 | return 0; | |
2037 | } | |
2038 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); | |
2039 | ||
2040 | /** | |
2041 | * snd_soc_get_enum_double - enumerated double mixer get callback | |
2042 | * @kcontrol: mixer control | |
ac11a2b3 | 2043 | * @ucontrol: control element information |
db2a4165 FM |
2044 | * |
2045 | * Callback to get the value of a double enumerated mixer. | |
2046 | * | |
2047 | * Returns 0 for success. | |
2048 | */ | |
2049 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
2050 | struct snd_ctl_elem_value *ucontrol) | |
2051 | { | |
2052 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2053 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 2054 | unsigned int val, bitmask; |
db2a4165 | 2055 | |
f8ba0b7b | 2056 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 FM |
2057 | ; |
2058 | val = snd_soc_read(codec, e->reg); | |
3ff3f64b MB |
2059 | ucontrol->value.enumerated.item[0] |
2060 | = (val >> e->shift_l) & (bitmask - 1); | |
db2a4165 FM |
2061 | if (e->shift_l != e->shift_r) |
2062 | ucontrol->value.enumerated.item[1] = | |
2063 | (val >> e->shift_r) & (bitmask - 1); | |
2064 | ||
2065 | return 0; | |
2066 | } | |
2067 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
2068 | ||
2069 | /** | |
2070 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
2071 | * @kcontrol: mixer control | |
ac11a2b3 | 2072 | * @ucontrol: control element information |
db2a4165 FM |
2073 | * |
2074 | * Callback to set the value of a double enumerated mixer. | |
2075 | * | |
2076 | * Returns 0 for success. | |
2077 | */ | |
2078 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
2079 | struct snd_ctl_elem_value *ucontrol) | |
2080 | { | |
2081 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2082 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f DR |
2083 | unsigned int val; |
2084 | unsigned int mask, bitmask; | |
db2a4165 | 2085 | |
f8ba0b7b | 2086 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
db2a4165 | 2087 | ; |
f8ba0b7b | 2088 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
db2a4165 FM |
2089 | return -EINVAL; |
2090 | val = ucontrol->value.enumerated.item[0] << e->shift_l; | |
2091 | mask = (bitmask - 1) << e->shift_l; | |
2092 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2093 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
db2a4165 FM |
2094 | return -EINVAL; |
2095 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2096 | mask |= (bitmask - 1) << e->shift_r; | |
2097 | } | |
2098 | ||
6c508c62 | 2099 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
db2a4165 FM |
2100 | } |
2101 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
2102 | ||
2e72f8e3 PU |
2103 | /** |
2104 | * snd_soc_get_value_enum_double - semi enumerated double mixer get callback | |
2105 | * @kcontrol: mixer control | |
2106 | * @ucontrol: control element information | |
2107 | * | |
2108 | * Callback to get the value of a double semi enumerated mixer. | |
2109 | * | |
2110 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2111 | * used for handling bitfield coded enumeration for example. | |
2112 | * | |
2113 | * Returns 0 for success. | |
2114 | */ | |
2115 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2116 | struct snd_ctl_elem_value *ucontrol) | |
2117 | { | |
2118 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2119 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2120 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2121 | |
2122 | reg_val = snd_soc_read(codec, e->reg); | |
2123 | val = (reg_val >> e->shift_l) & e->mask; | |
2124 | for (mux = 0; mux < e->max; mux++) { | |
2125 | if (val == e->values[mux]) | |
2126 | break; | |
2127 | } | |
2128 | ucontrol->value.enumerated.item[0] = mux; | |
2129 | if (e->shift_l != e->shift_r) { | |
2130 | val = (reg_val >> e->shift_r) & e->mask; | |
2131 | for (mux = 0; mux < e->max; mux++) { | |
2132 | if (val == e->values[mux]) | |
2133 | break; | |
2134 | } | |
2135 | ucontrol->value.enumerated.item[1] = mux; | |
2136 | } | |
2137 | ||
2138 | return 0; | |
2139 | } | |
2140 | EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double); | |
2141 | ||
2142 | /** | |
2143 | * snd_soc_put_value_enum_double - semi enumerated double mixer put callback | |
2144 | * @kcontrol: mixer control | |
2145 | * @ucontrol: control element information | |
2146 | * | |
2147 | * Callback to set the value of a double semi enumerated mixer. | |
2148 | * | |
2149 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2150 | * used for handling bitfield coded enumeration for example. | |
2151 | * | |
2152 | * Returns 0 for success. | |
2153 | */ | |
2154 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2155 | struct snd_ctl_elem_value *ucontrol) | |
2156 | { | |
2157 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
74155556 | 2158 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f DR |
2159 | unsigned int val; |
2160 | unsigned int mask; | |
2e72f8e3 PU |
2161 | |
2162 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2163 | return -EINVAL; | |
2164 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2165 | mask = e->mask << e->shift_l; | |
2166 | if (e->shift_l != e->shift_r) { | |
2167 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2168 | return -EINVAL; | |
2169 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2170 | mask |= e->mask << e->shift_r; | |
2171 | } | |
2172 | ||
6c508c62 | 2173 | return snd_soc_update_bits_locked(codec, e->reg, mask, val); |
2e72f8e3 PU |
2174 | } |
2175 | EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double); | |
2176 | ||
db2a4165 FM |
2177 | /** |
2178 | * snd_soc_info_enum_ext - external enumerated single mixer info callback | |
2179 | * @kcontrol: mixer control | |
2180 | * @uinfo: control element information | |
2181 | * | |
2182 | * Callback to provide information about an external enumerated | |
2183 | * single mixer. | |
2184 | * | |
2185 | * Returns 0 for success. | |
2186 | */ | |
2187 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
2188 | struct snd_ctl_elem_info *uinfo) | |
2189 | { | |
2190 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
2191 | ||
2192 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
2193 | uinfo->count = 1; | |
f8ba0b7b | 2194 | uinfo->value.enumerated.items = e->max; |
db2a4165 | 2195 | |
f8ba0b7b JS |
2196 | if (uinfo->value.enumerated.item > e->max - 1) |
2197 | uinfo->value.enumerated.item = e->max - 1; | |
db2a4165 FM |
2198 | strcpy(uinfo->value.enumerated.name, |
2199 | e->texts[uinfo->value.enumerated.item]); | |
2200 | return 0; | |
2201 | } | |
2202 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext); | |
2203 | ||
2204 | /** | |
2205 | * snd_soc_info_volsw_ext - external single mixer info callback | |
2206 | * @kcontrol: mixer control | |
2207 | * @uinfo: control element information | |
2208 | * | |
2209 | * Callback to provide information about a single external mixer control. | |
2210 | * | |
2211 | * Returns 0 for success. | |
2212 | */ | |
2213 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
2214 | struct snd_ctl_elem_info *uinfo) | |
2215 | { | |
a7a4ac86 PZ |
2216 | int max = kcontrol->private_value; |
2217 | ||
fd5dfad9 | 2218 | if (max == 1 && !strstr(kcontrol->id.name, " Volume")) |
a7a4ac86 PZ |
2219 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2220 | else | |
2221 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2222 | |
db2a4165 FM |
2223 | uinfo->count = 1; |
2224 | uinfo->value.integer.min = 0; | |
a7a4ac86 | 2225 | uinfo->value.integer.max = max; |
db2a4165 FM |
2226 | return 0; |
2227 | } | |
2228 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext); | |
2229 | ||
db2a4165 FM |
2230 | /** |
2231 | * snd_soc_info_volsw - single mixer info callback | |
2232 | * @kcontrol: mixer control | |
2233 | * @uinfo: control element information | |
2234 | * | |
2235 | * Callback to provide information about a single mixer control. | |
2236 | * | |
2237 | * Returns 0 for success. | |
2238 | */ | |
2239 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
2240 | struct snd_ctl_elem_info *uinfo) | |
2241 | { | |
4eaa9819 JS |
2242 | struct soc_mixer_control *mc = |
2243 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2244 | int platform_max; |
762b8df7 | 2245 | unsigned int shift = mc->shift; |
815ecf8d | 2246 | unsigned int rshift = mc->rshift; |
db2a4165 | 2247 | |
d11bb4a9 PU |
2248 | if (!mc->platform_max) |
2249 | mc->platform_max = mc->max; | |
2250 | platform_max = mc->platform_max; | |
2251 | ||
2252 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2253 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2254 | else | |
2255 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2256 | ||
db2a4165 FM |
2257 | uinfo->count = shift == rshift ? 1 : 2; |
2258 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2259 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2260 | return 0; |
2261 | } | |
2262 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
2263 | ||
2264 | /** | |
2265 | * snd_soc_get_volsw - single mixer get callback | |
2266 | * @kcontrol: mixer control | |
ac11a2b3 | 2267 | * @ucontrol: control element information |
db2a4165 FM |
2268 | * |
2269 | * Callback to get the value of a single mixer control. | |
2270 | * | |
2271 | * Returns 0 for success. | |
2272 | */ | |
2273 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
2274 | struct snd_ctl_elem_value *ucontrol) | |
2275 | { | |
4eaa9819 JS |
2276 | struct soc_mixer_control *mc = |
2277 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2278 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2279 | unsigned int reg = mc->reg; |
2280 | unsigned int shift = mc->shift; | |
2281 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2282 | int max = mc->max; |
815ecf8d JS |
2283 | unsigned int mask = (1 << fls(max)) - 1; |
2284 | unsigned int invert = mc->invert; | |
db2a4165 FM |
2285 | |
2286 | ucontrol->value.integer.value[0] = | |
2287 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2288 | if (shift != rshift) | |
2289 | ucontrol->value.integer.value[1] = | |
2290 | (snd_soc_read(codec, reg) >> rshift) & mask; | |
2291 | if (invert) { | |
2292 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2293 | max - ucontrol->value.integer.value[0]; |
db2a4165 FM |
2294 | if (shift != rshift) |
2295 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2296 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2297 | } |
2298 | ||
2299 | return 0; | |
2300 | } | |
2301 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
2302 | ||
2303 | /** | |
2304 | * snd_soc_put_volsw - single mixer put callback | |
2305 | * @kcontrol: mixer control | |
ac11a2b3 | 2306 | * @ucontrol: control element information |
db2a4165 FM |
2307 | * |
2308 | * Callback to set the value of a single mixer control. | |
2309 | * | |
2310 | * Returns 0 for success. | |
2311 | */ | |
2312 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
2313 | struct snd_ctl_elem_value *ucontrol) | |
2314 | { | |
4eaa9819 JS |
2315 | struct soc_mixer_control *mc = |
2316 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2317 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2318 | unsigned int reg = mc->reg; |
2319 | unsigned int shift = mc->shift; | |
2320 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2321 | int max = mc->max; |
815ecf8d JS |
2322 | unsigned int mask = (1 << fls(max)) - 1; |
2323 | unsigned int invert = mc->invert; | |
46f5822f | 2324 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2325 | |
2326 | val = (ucontrol->value.integer.value[0] & mask); | |
2327 | if (invert) | |
a7a4ac86 | 2328 | val = max - val; |
db2a4165 FM |
2329 | val_mask = mask << shift; |
2330 | val = val << shift; | |
2331 | if (shift != rshift) { | |
2332 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2333 | if (invert) | |
a7a4ac86 | 2334 | val2 = max - val2; |
db2a4165 FM |
2335 | val_mask |= mask << rshift; |
2336 | val |= val2 << rshift; | |
2337 | } | |
6c508c62 | 2338 | return snd_soc_update_bits_locked(codec, reg, val_mask, val); |
db2a4165 FM |
2339 | } |
2340 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
2341 | ||
2342 | /** | |
2343 | * snd_soc_info_volsw_2r - double mixer info callback | |
2344 | * @kcontrol: mixer control | |
2345 | * @uinfo: control element information | |
2346 | * | |
2347 | * Callback to provide information about a double mixer control that | |
2348 | * spans 2 codec registers. | |
2349 | * | |
2350 | * Returns 0 for success. | |
2351 | */ | |
2352 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
2353 | struct snd_ctl_elem_info *uinfo) | |
2354 | { | |
4eaa9819 JS |
2355 | struct soc_mixer_control *mc = |
2356 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2357 | int platform_max; |
a7a4ac86 | 2358 | |
d11bb4a9 PU |
2359 | if (!mc->platform_max) |
2360 | mc->platform_max = mc->max; | |
2361 | platform_max = mc->platform_max; | |
2362 | ||
2363 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
a7a4ac86 PZ |
2364 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
2365 | else | |
2366 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
db2a4165 | 2367 | |
db2a4165 FM |
2368 | uinfo->count = 2; |
2369 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2370 | uinfo->value.integer.max = platform_max; |
db2a4165 FM |
2371 | return 0; |
2372 | } | |
2373 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r); | |
2374 | ||
2375 | /** | |
2376 | * snd_soc_get_volsw_2r - double mixer get callback | |
2377 | * @kcontrol: mixer control | |
ac11a2b3 | 2378 | * @ucontrol: control element information |
db2a4165 FM |
2379 | * |
2380 | * Callback to get the value of a double mixer control that spans 2 registers. | |
2381 | * | |
2382 | * Returns 0 for success. | |
2383 | */ | |
2384 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
2385 | struct snd_ctl_elem_value *ucontrol) | |
2386 | { | |
4eaa9819 JS |
2387 | struct soc_mixer_control *mc = |
2388 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2389 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2390 | unsigned int reg = mc->reg; |
2391 | unsigned int reg2 = mc->rreg; | |
2392 | unsigned int shift = mc->shift; | |
4eaa9819 | 2393 | int max = mc->max; |
46f5822f | 2394 | unsigned int mask = (1 << fls(max)) - 1; |
815ecf8d | 2395 | unsigned int invert = mc->invert; |
db2a4165 FM |
2396 | |
2397 | ucontrol->value.integer.value[0] = | |
2398 | (snd_soc_read(codec, reg) >> shift) & mask; | |
2399 | ucontrol->value.integer.value[1] = | |
2400 | (snd_soc_read(codec, reg2) >> shift) & mask; | |
2401 | if (invert) { | |
2402 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2403 | max - ucontrol->value.integer.value[0]; |
db2a4165 | 2404 | ucontrol->value.integer.value[1] = |
a7a4ac86 | 2405 | max - ucontrol->value.integer.value[1]; |
db2a4165 FM |
2406 | } |
2407 | ||
2408 | return 0; | |
2409 | } | |
2410 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r); | |
2411 | ||
2412 | /** | |
2413 | * snd_soc_put_volsw_2r - double mixer set callback | |
2414 | * @kcontrol: mixer control | |
ac11a2b3 | 2415 | * @ucontrol: control element information |
db2a4165 FM |
2416 | * |
2417 | * Callback to set the value of a double mixer control that spans 2 registers. | |
2418 | * | |
2419 | * Returns 0 for success. | |
2420 | */ | |
2421 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
2422 | struct snd_ctl_elem_value *ucontrol) | |
2423 | { | |
4eaa9819 JS |
2424 | struct soc_mixer_control *mc = |
2425 | (struct soc_mixer_control *)kcontrol->private_value; | |
db2a4165 | 2426 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d JS |
2427 | unsigned int reg = mc->reg; |
2428 | unsigned int reg2 = mc->rreg; | |
2429 | unsigned int shift = mc->shift; | |
4eaa9819 | 2430 | int max = mc->max; |
815ecf8d JS |
2431 | unsigned int mask = (1 << fls(max)) - 1; |
2432 | unsigned int invert = mc->invert; | |
db2a4165 | 2433 | int err; |
46f5822f | 2434 | unsigned int val, val2, val_mask; |
db2a4165 FM |
2435 | |
2436 | val_mask = mask << shift; | |
2437 | val = (ucontrol->value.integer.value[0] & mask); | |
2438 | val2 = (ucontrol->value.integer.value[1] & mask); | |
2439 | ||
2440 | if (invert) { | |
a7a4ac86 PZ |
2441 | val = max - val; |
2442 | val2 = max - val2; | |
db2a4165 FM |
2443 | } |
2444 | ||
2445 | val = val << shift; | |
2446 | val2 = val2 << shift; | |
2447 | ||
6c508c62 | 2448 | err = snd_soc_update_bits_locked(codec, reg, val_mask, val); |
3ff3f64b | 2449 | if (err < 0) |
db2a4165 FM |
2450 | return err; |
2451 | ||
6c508c62 | 2452 | err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2); |
db2a4165 FM |
2453 | return err; |
2454 | } | |
2455 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r); | |
2456 | ||
e13ac2e9 MB |
2457 | /** |
2458 | * snd_soc_info_volsw_s8 - signed mixer info callback | |
2459 | * @kcontrol: mixer control | |
2460 | * @uinfo: control element information | |
2461 | * | |
2462 | * Callback to provide information about a signed mixer control. | |
2463 | * | |
2464 | * Returns 0 for success. | |
2465 | */ | |
2466 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
2467 | struct snd_ctl_elem_info *uinfo) | |
2468 | { | |
4eaa9819 JS |
2469 | struct soc_mixer_control *mc = |
2470 | (struct soc_mixer_control *)kcontrol->private_value; | |
d11bb4a9 | 2471 | int platform_max; |
4eaa9819 | 2472 | int min = mc->min; |
e13ac2e9 | 2473 | |
d11bb4a9 PU |
2474 | if (!mc->platform_max) |
2475 | mc->platform_max = mc->max; | |
2476 | platform_max = mc->platform_max; | |
2477 | ||
e13ac2e9 MB |
2478 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
2479 | uinfo->count = 2; | |
2480 | uinfo->value.integer.min = 0; | |
d11bb4a9 | 2481 | uinfo->value.integer.max = platform_max - min; |
e13ac2e9 MB |
2482 | return 0; |
2483 | } | |
2484 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8); | |
2485 | ||
2486 | /** | |
2487 | * snd_soc_get_volsw_s8 - signed mixer get callback | |
2488 | * @kcontrol: mixer control | |
ac11a2b3 | 2489 | * @ucontrol: control element information |
e13ac2e9 MB |
2490 | * |
2491 | * Callback to get the value of a signed mixer control. | |
2492 | * | |
2493 | * Returns 0 for success. | |
2494 | */ | |
2495 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
2496 | struct snd_ctl_elem_value *ucontrol) | |
2497 | { | |
4eaa9819 JS |
2498 | struct soc_mixer_control *mc = |
2499 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2500 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2501 | unsigned int reg = mc->reg; |
4eaa9819 | 2502 | int min = mc->min; |
e13ac2e9 MB |
2503 | int val = snd_soc_read(codec, reg); |
2504 | ||
2505 | ucontrol->value.integer.value[0] = | |
2506 | ((signed char)(val & 0xff))-min; | |
2507 | ucontrol->value.integer.value[1] = | |
2508 | ((signed char)((val >> 8) & 0xff))-min; | |
2509 | return 0; | |
2510 | } | |
2511 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8); | |
2512 | ||
2513 | /** | |
2514 | * snd_soc_put_volsw_sgn - signed mixer put callback | |
2515 | * @kcontrol: mixer control | |
ac11a2b3 | 2516 | * @ucontrol: control element information |
e13ac2e9 MB |
2517 | * |
2518 | * Callback to set the value of a signed mixer control. | |
2519 | * | |
2520 | * Returns 0 for success. | |
2521 | */ | |
2522 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
2523 | struct snd_ctl_elem_value *ucontrol) | |
2524 | { | |
4eaa9819 JS |
2525 | struct soc_mixer_control *mc = |
2526 | (struct soc_mixer_control *)kcontrol->private_value; | |
e13ac2e9 | 2527 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
815ecf8d | 2528 | unsigned int reg = mc->reg; |
4eaa9819 | 2529 | int min = mc->min; |
46f5822f | 2530 | unsigned int val; |
e13ac2e9 MB |
2531 | |
2532 | val = (ucontrol->value.integer.value[0]+min) & 0xff; | |
2533 | val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8; | |
2534 | ||
6c508c62 | 2535 | return snd_soc_update_bits_locked(codec, reg, 0xffff, val); |
e13ac2e9 MB |
2536 | } |
2537 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8); | |
2538 | ||
637d3847 PU |
2539 | /** |
2540 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
2541 | * | |
2542 | * @codec: where to look for the control | |
2543 | * @name: Name of the control | |
2544 | * @max: new maximum limit | |
2545 | * | |
2546 | * Return 0 for success, else error. | |
2547 | */ | |
2548 | int snd_soc_limit_volume(struct snd_soc_codec *codec, | |
2549 | const char *name, int max) | |
2550 | { | |
f0fba2ad | 2551 | struct snd_card *card = codec->card->snd_card; |
637d3847 PU |
2552 | struct snd_kcontrol *kctl; |
2553 | struct soc_mixer_control *mc; | |
2554 | int found = 0; | |
2555 | int ret = -EINVAL; | |
2556 | ||
2557 | /* Sanity check for name and max */ | |
2558 | if (unlikely(!name || max <= 0)) | |
2559 | return -EINVAL; | |
2560 | ||
2561 | list_for_each_entry(kctl, &card->controls, list) { | |
2562 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { | |
2563 | found = 1; | |
2564 | break; | |
2565 | } | |
2566 | } | |
2567 | if (found) { | |
2568 | mc = (struct soc_mixer_control *)kctl->private_value; | |
2569 | if (max <= mc->max) { | |
d11bb4a9 | 2570 | mc->platform_max = max; |
637d3847 PU |
2571 | ret = 0; |
2572 | } | |
2573 | } | |
2574 | return ret; | |
2575 | } | |
2576 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
2577 | ||
b6f4bb38 | 2578 | /** |
2579 | * snd_soc_info_volsw_2r_sx - double with tlv and variable data size | |
2580 | * mixer info callback | |
2581 | * @kcontrol: mixer control | |
2582 | * @uinfo: control element information | |
2583 | * | |
2584 | * Returns 0 for success. | |
2585 | */ | |
2586 | int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2587 | struct snd_ctl_elem_info *uinfo) | |
2588 | { | |
2589 | struct soc_mixer_control *mc = | |
2590 | (struct soc_mixer_control *)kcontrol->private_value; | |
2591 | int max = mc->max; | |
2592 | int min = mc->min; | |
2593 | ||
2594 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
2595 | uinfo->count = 2; | |
2596 | uinfo->value.integer.min = 0; | |
2597 | uinfo->value.integer.max = max-min; | |
2598 | ||
2599 | return 0; | |
2600 | } | |
2601 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx); | |
2602 | ||
2603 | /** | |
2604 | * snd_soc_get_volsw_2r_sx - double with tlv and variable data size | |
2605 | * mixer get callback | |
2606 | * @kcontrol: mixer control | |
2607 | * @uinfo: control element information | |
2608 | * | |
2609 | * Returns 0 for success. | |
2610 | */ | |
2611 | int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2612 | struct snd_ctl_elem_value *ucontrol) | |
2613 | { | |
2614 | struct soc_mixer_control *mc = | |
2615 | (struct soc_mixer_control *)kcontrol->private_value; | |
2616 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2617 | unsigned int mask = (1<<mc->shift)-1; | |
2618 | int min = mc->min; | |
2619 | int val = snd_soc_read(codec, mc->reg) & mask; | |
2620 | int valr = snd_soc_read(codec, mc->rreg) & mask; | |
2621 | ||
20630c7f SL |
2622 | ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask; |
2623 | ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask; | |
b6f4bb38 | 2624 | return 0; |
2625 | } | |
2626 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx); | |
2627 | ||
2628 | /** | |
2629 | * snd_soc_put_volsw_2r_sx - double with tlv and variable data size | |
2630 | * mixer put callback | |
2631 | * @kcontrol: mixer control | |
2632 | * @uinfo: control element information | |
2633 | * | |
2634 | * Returns 0 for success. | |
2635 | */ | |
2636 | int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol, | |
2637 | struct snd_ctl_elem_value *ucontrol) | |
2638 | { | |
2639 | struct soc_mixer_control *mc = | |
2640 | (struct soc_mixer_control *)kcontrol->private_value; | |
2641 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2642 | unsigned int mask = (1<<mc->shift)-1; | |
2643 | int min = mc->min; | |
2644 | int ret; | |
2645 | unsigned int val, valr, oval, ovalr; | |
2646 | ||
2647 | val = ((ucontrol->value.integer.value[0]+min) & 0xff); | |
2648 | val &= mask; | |
2649 | valr = ((ucontrol->value.integer.value[1]+min) & 0xff); | |
2650 | valr &= mask; | |
2651 | ||
2652 | oval = snd_soc_read(codec, mc->reg) & mask; | |
2653 | ovalr = snd_soc_read(codec, mc->rreg) & mask; | |
2654 | ||
2655 | ret = 0; | |
2656 | if (oval != val) { | |
2657 | ret = snd_soc_write(codec, mc->reg, val); | |
2658 | if (ret < 0) | |
f1df5aec | 2659 | return ret; |
b6f4bb38 | 2660 | } |
2661 | if (ovalr != valr) { | |
2662 | ret = snd_soc_write(codec, mc->rreg, valr); | |
2663 | if (ret < 0) | |
f1df5aec | 2664 | return ret; |
b6f4bb38 | 2665 | } |
2666 | ||
2667 | return 0; | |
2668 | } | |
2669 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx); | |
2670 | ||
8c6529db LG |
2671 | /** |
2672 | * snd_soc_dai_set_sysclk - configure DAI system or master clock. | |
2673 | * @dai: DAI | |
2674 | * @clk_id: DAI specific clock ID | |
2675 | * @freq: new clock frequency in Hz | |
2676 | * @dir: new clock direction - input/output. | |
2677 | * | |
2678 | * Configures the DAI master (MCLK) or system (SYSCLK) clocking. | |
2679 | */ | |
2680 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
2681 | unsigned int freq, int dir) | |
2682 | { | |
f0fba2ad LG |
2683 | if (dai->driver && dai->driver->ops->set_sysclk) |
2684 | return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir); | |
8c6529db LG |
2685 | else |
2686 | return -EINVAL; | |
2687 | } | |
2688 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk); | |
2689 | ||
2690 | /** | |
2691 | * snd_soc_dai_set_clkdiv - configure DAI clock dividers. | |
2692 | * @dai: DAI | |
ac11a2b3 | 2693 | * @div_id: DAI specific clock divider ID |
8c6529db LG |
2694 | * @div: new clock divisor. |
2695 | * | |
2696 | * Configures the clock dividers. This is used to derive the best DAI bit and | |
2697 | * frame clocks from the system or master clock. It's best to set the DAI bit | |
2698 | * and frame clocks as low as possible to save system power. | |
2699 | */ | |
2700 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
2701 | int div_id, int div) | |
2702 | { | |
f0fba2ad LG |
2703 | if (dai->driver && dai->driver->ops->set_clkdiv) |
2704 | return dai->driver->ops->set_clkdiv(dai, div_id, div); | |
8c6529db LG |
2705 | else |
2706 | return -EINVAL; | |
2707 | } | |
2708 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv); | |
2709 | ||
2710 | /** | |
2711 | * snd_soc_dai_set_pll - configure DAI PLL. | |
2712 | * @dai: DAI | |
2713 | * @pll_id: DAI specific PLL ID | |
85488037 | 2714 | * @source: DAI specific source for the PLL |
8c6529db LG |
2715 | * @freq_in: PLL input clock frequency in Hz |
2716 | * @freq_out: requested PLL output clock frequency in Hz | |
2717 | * | |
2718 | * Configures and enables PLL to generate output clock based on input clock. | |
2719 | */ | |
85488037 MB |
2720 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, |
2721 | unsigned int freq_in, unsigned int freq_out) | |
8c6529db | 2722 | { |
f0fba2ad LG |
2723 | if (dai->driver && dai->driver->ops->set_pll) |
2724 | return dai->driver->ops->set_pll(dai, pll_id, source, | |
85488037 | 2725 | freq_in, freq_out); |
8c6529db LG |
2726 | else |
2727 | return -EINVAL; | |
2728 | } | |
2729 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll); | |
2730 | ||
2731 | /** | |
2732 | * snd_soc_dai_set_fmt - configure DAI hardware audio format. | |
2733 | * @dai: DAI | |
8c6529db LG |
2734 | * @fmt: SND_SOC_DAIFMT_ format value. |
2735 | * | |
2736 | * Configures the DAI hardware format and clocking. | |
2737 | */ | |
2738 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
2739 | { | |
f0fba2ad LG |
2740 | if (dai->driver && dai->driver->ops->set_fmt) |
2741 | return dai->driver->ops->set_fmt(dai, fmt); | |
8c6529db LG |
2742 | else |
2743 | return -EINVAL; | |
2744 | } | |
2745 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt); | |
2746 | ||
2747 | /** | |
2748 | * snd_soc_dai_set_tdm_slot - configure DAI TDM. | |
2749 | * @dai: DAI | |
a5479e38 DR |
2750 | * @tx_mask: bitmask representing active TX slots. |
2751 | * @rx_mask: bitmask representing active RX slots. | |
8c6529db | 2752 | * @slots: Number of slots in use. |
a5479e38 | 2753 | * @slot_width: Width in bits for each slot. |
8c6529db LG |
2754 | * |
2755 | * Configures a DAI for TDM operation. Both mask and slots are codec and DAI | |
2756 | * specific. | |
2757 | */ | |
2758 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 2759 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
8c6529db | 2760 | { |
f0fba2ad LG |
2761 | if (dai->driver && dai->driver->ops->set_tdm_slot) |
2762 | return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask, | |
a5479e38 | 2763 | slots, slot_width); |
8c6529db LG |
2764 | else |
2765 | return -EINVAL; | |
2766 | } | |
2767 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot); | |
2768 | ||
472df3cb BS |
2769 | /** |
2770 | * snd_soc_dai_set_channel_map - configure DAI audio channel map | |
2771 | * @dai: DAI | |
2772 | * @tx_num: how many TX channels | |
2773 | * @tx_slot: pointer to an array which imply the TX slot number channel | |
2774 | * 0~num-1 uses | |
2775 | * @rx_num: how many RX channels | |
2776 | * @rx_slot: pointer to an array which imply the RX slot number channel | |
2777 | * 0~num-1 uses | |
2778 | * | |
2779 | * configure the relationship between channel number and TDM slot number. | |
2780 | */ | |
2781 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, | |
2782 | unsigned int tx_num, unsigned int *tx_slot, | |
2783 | unsigned int rx_num, unsigned int *rx_slot) | |
2784 | { | |
f0fba2ad LG |
2785 | if (dai->driver && dai->driver->ops->set_channel_map) |
2786 | return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot, | |
472df3cb BS |
2787 | rx_num, rx_slot); |
2788 | else | |
2789 | return -EINVAL; | |
2790 | } | |
2791 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); | |
2792 | ||
8c6529db LG |
2793 | /** |
2794 | * snd_soc_dai_set_tristate - configure DAI system or master clock. | |
2795 | * @dai: DAI | |
2796 | * @tristate: tristate enable | |
2797 | * | |
2798 | * Tristates the DAI so that others can use it. | |
2799 | */ | |
2800 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate) | |
2801 | { | |
f0fba2ad LG |
2802 | if (dai->driver && dai->driver->ops->set_tristate) |
2803 | return dai->driver->ops->set_tristate(dai, tristate); | |
8c6529db LG |
2804 | else |
2805 | return -EINVAL; | |
2806 | } | |
2807 | EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate); | |
2808 | ||
2809 | /** | |
2810 | * snd_soc_dai_digital_mute - configure DAI system or master clock. | |
2811 | * @dai: DAI | |
2812 | * @mute: mute enable | |
2813 | * | |
2814 | * Mutes the DAI DAC. | |
2815 | */ | |
2816 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute) | |
2817 | { | |
f0fba2ad LG |
2818 | if (dai->driver && dai->driver->ops->digital_mute) |
2819 | return dai->driver->ops->digital_mute(dai, mute); | |
8c6529db LG |
2820 | else |
2821 | return -EINVAL; | |
2822 | } | |
2823 | EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute); | |
2824 | ||
c5af3a2e MB |
2825 | /** |
2826 | * snd_soc_register_card - Register a card with the ASoC core | |
2827 | * | |
ac11a2b3 | 2828 | * @card: Card to register |
c5af3a2e MB |
2829 | * |
2830 | * Note that currently this is an internal only function: it will be | |
2831 | * exposed to machine drivers after further backporting of ASoC v2 | |
2832 | * registration APIs. | |
2833 | */ | |
2834 | static int snd_soc_register_card(struct snd_soc_card *card) | |
2835 | { | |
f0fba2ad LG |
2836 | int i; |
2837 | ||
c5af3a2e MB |
2838 | if (!card->name || !card->dev) |
2839 | return -EINVAL; | |
2840 | ||
f0fba2ad LG |
2841 | card->rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime) * card->num_links, |
2842 | GFP_KERNEL); | |
2843 | if (card->rtd == NULL) | |
2844 | return -ENOMEM; | |
2845 | ||
2846 | for (i = 0; i < card->num_links; i++) | |
2847 | card->rtd[i].dai_link = &card->dai_link[i]; | |
2848 | ||
c5af3a2e MB |
2849 | INIT_LIST_HEAD(&card->list); |
2850 | card->instantiated = 0; | |
f0fba2ad | 2851 | mutex_init(&card->mutex); |
c5af3a2e MB |
2852 | |
2853 | mutex_lock(&client_mutex); | |
2854 | list_add(&card->list, &card_list); | |
435c5e25 | 2855 | snd_soc_instantiate_cards(); |
c5af3a2e MB |
2856 | mutex_unlock(&client_mutex); |
2857 | ||
2858 | dev_dbg(card->dev, "Registered card '%s'\n", card->name); | |
2859 | ||
2860 | return 0; | |
2861 | } | |
2862 | ||
2863 | /** | |
2864 | * snd_soc_unregister_card - Unregister a card with the ASoC core | |
2865 | * | |
ac11a2b3 | 2866 | * @card: Card to unregister |
c5af3a2e MB |
2867 | * |
2868 | * Note that currently this is an internal only function: it will be | |
2869 | * exposed to machine drivers after further backporting of ASoC v2 | |
2870 | * registration APIs. | |
2871 | */ | |
2872 | static int snd_soc_unregister_card(struct snd_soc_card *card) | |
2873 | { | |
2874 | mutex_lock(&client_mutex); | |
2875 | list_del(&card->list); | |
2876 | mutex_unlock(&client_mutex); | |
c5af3a2e MB |
2877 | dev_dbg(card->dev, "Unregistered card '%s'\n", card->name); |
2878 | ||
2879 | return 0; | |
2880 | } | |
2881 | ||
f0fba2ad LG |
2882 | /* |
2883 | * Simplify DAI link configuration by removing ".-1" from device names | |
2884 | * and sanitizing names. | |
2885 | */ | |
2886 | static inline char *fmt_single_name(struct device *dev, int *id) | |
2887 | { | |
2888 | char *found, name[NAME_SIZE]; | |
2889 | int id1, id2; | |
2890 | ||
2891 | if (dev_name(dev) == NULL) | |
2892 | return NULL; | |
2893 | ||
2894 | strncpy(name, dev_name(dev), NAME_SIZE); | |
2895 | ||
2896 | /* are we a "%s.%d" name (platform and SPI components) */ | |
2897 | found = strstr(name, dev->driver->name); | |
2898 | if (found) { | |
2899 | /* get ID */ | |
2900 | if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) { | |
2901 | ||
2902 | /* discard ID from name if ID == -1 */ | |
2903 | if (*id == -1) | |
2904 | found[strlen(dev->driver->name)] = '\0'; | |
2905 | } | |
2906 | ||
2907 | } else { | |
2908 | /* I2C component devices are named "bus-addr" */ | |
2909 | if (sscanf(name, "%x-%x", &id1, &id2) == 2) { | |
2910 | char tmp[NAME_SIZE]; | |
2911 | ||
2912 | /* create unique ID number from I2C addr and bus */ | |
2913 | *id = ((id1 && 0xffff) << 16) + id2; | |
2914 | ||
2915 | /* sanitize component name for DAI link creation */ | |
2916 | snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name); | |
2917 | strncpy(name, tmp, NAME_SIZE); | |
2918 | } else | |
2919 | *id = 0; | |
2920 | } | |
2921 | ||
2922 | return kstrdup(name, GFP_KERNEL); | |
2923 | } | |
2924 | ||
2925 | /* | |
2926 | * Simplify DAI link naming for single devices with multiple DAIs by removing | |
2927 | * any ".-1" and using the DAI name (instead of device name). | |
2928 | */ | |
2929 | static inline char *fmt_multiple_name(struct device *dev, | |
2930 | struct snd_soc_dai_driver *dai_drv) | |
2931 | { | |
2932 | if (dai_drv->name == NULL) { | |
2933 | printk(KERN_ERR "asoc: error - multiple DAI %s registered with no name\n", | |
2934 | dev_name(dev)); | |
2935 | return NULL; | |
2936 | } | |
2937 | ||
2938 | return kstrdup(dai_drv->name, GFP_KERNEL); | |
2939 | } | |
2940 | ||
9115171a MB |
2941 | /** |
2942 | * snd_soc_register_dai - Register a DAI with the ASoC core | |
2943 | * | |
ac11a2b3 | 2944 | * @dai: DAI to register |
9115171a | 2945 | */ |
f0fba2ad LG |
2946 | int snd_soc_register_dai(struct device *dev, |
2947 | struct snd_soc_dai_driver *dai_drv) | |
9115171a | 2948 | { |
f0fba2ad LG |
2949 | struct snd_soc_dai *dai; |
2950 | ||
2951 | dev_dbg(dev, "dai register %s\n", dev_name(dev)); | |
9115171a | 2952 | |
f0fba2ad LG |
2953 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); |
2954 | if (dai == NULL) | |
2955 | return -ENOMEM; | |
9115171a | 2956 | |
f0fba2ad LG |
2957 | /* create DAI component name */ |
2958 | dai->name = fmt_single_name(dev, &dai->id); | |
2959 | if (dai->name == NULL) { | |
2960 | kfree(dai); | |
2961 | return -ENOMEM; | |
2962 | } | |
6335d055 | 2963 | |
f0fba2ad LG |
2964 | dai->dev = dev; |
2965 | dai->driver = dai_drv; | |
2966 | if (!dai->driver->ops) | |
2967 | dai->driver->ops = &null_dai_ops; | |
9115171a MB |
2968 | |
2969 | mutex_lock(&client_mutex); | |
2970 | list_add(&dai->list, &dai_list); | |
435c5e25 | 2971 | snd_soc_instantiate_cards(); |
9115171a MB |
2972 | mutex_unlock(&client_mutex); |
2973 | ||
2974 | pr_debug("Registered DAI '%s'\n", dai->name); | |
2975 | ||
2976 | return 0; | |
2977 | } | |
2978 | EXPORT_SYMBOL_GPL(snd_soc_register_dai); | |
2979 | ||
2980 | /** | |
2981 | * snd_soc_unregister_dai - Unregister a DAI from the ASoC core | |
2982 | * | |
ac11a2b3 | 2983 | * @dai: DAI to unregister |
9115171a | 2984 | */ |
f0fba2ad | 2985 | void snd_soc_unregister_dai(struct device *dev) |
9115171a | 2986 | { |
f0fba2ad LG |
2987 | struct snd_soc_dai *dai; |
2988 | ||
2989 | list_for_each_entry(dai, &dai_list, list) { | |
2990 | if (dev == dai->dev) | |
2991 | goto found; | |
2992 | } | |
2993 | return; | |
2994 | ||
2995 | found: | |
9115171a MB |
2996 | mutex_lock(&client_mutex); |
2997 | list_del(&dai->list); | |
2998 | mutex_unlock(&client_mutex); | |
2999 | ||
3000 | pr_debug("Unregistered DAI '%s'\n", dai->name); | |
f0fba2ad LG |
3001 | kfree(dai->name); |
3002 | kfree(dai); | |
9115171a MB |
3003 | } |
3004 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dai); | |
3005 | ||
3006 | /** | |
3007 | * snd_soc_register_dais - Register multiple DAIs with the ASoC core | |
3008 | * | |
ac11a2b3 MB |
3009 | * @dai: Array of DAIs to register |
3010 | * @count: Number of DAIs | |
9115171a | 3011 | */ |
f0fba2ad LG |
3012 | int snd_soc_register_dais(struct device *dev, |
3013 | struct snd_soc_dai_driver *dai_drv, size_t count) | |
9115171a | 3014 | { |
f0fba2ad LG |
3015 | struct snd_soc_dai *dai; |
3016 | int i, ret = 0; | |
3017 | ||
720ffa4c | 3018 | dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count); |
9115171a MB |
3019 | |
3020 | for (i = 0; i < count; i++) { | |
f0fba2ad LG |
3021 | |
3022 | dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL); | |
3023 | if (dai == NULL) | |
3024 | return -ENOMEM; | |
3025 | ||
3026 | /* create DAI component name */ | |
3027 | dai->name = fmt_multiple_name(dev, &dai_drv[i]); | |
3028 | if (dai->name == NULL) { | |
3029 | kfree(dai); | |
3030 | ret = -EINVAL; | |
9115171a | 3031 | goto err; |
f0fba2ad LG |
3032 | } |
3033 | ||
3034 | dai->dev = dev; | |
3035 | dai->id = i; | |
3036 | dai->driver = &dai_drv[i]; | |
3037 | if (!dai->driver->ops) | |
3038 | dai->driver->ops = &null_dai_ops; | |
3039 | ||
3040 | mutex_lock(&client_mutex); | |
3041 | list_add(&dai->list, &dai_list); | |
3042 | mutex_unlock(&client_mutex); | |
3043 | ||
3044 | pr_debug("Registered DAI '%s'\n", dai->name); | |
9115171a MB |
3045 | } |
3046 | ||
f0fba2ad | 3047 | snd_soc_instantiate_cards(); |
9115171a MB |
3048 | return 0; |
3049 | ||
3050 | err: | |
3051 | for (i--; i >= 0; i--) | |
f0fba2ad | 3052 | snd_soc_unregister_dai(dev); |
9115171a MB |
3053 | |
3054 | return ret; | |
3055 | } | |
3056 | EXPORT_SYMBOL_GPL(snd_soc_register_dais); | |
3057 | ||
3058 | /** | |
3059 | * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core | |
3060 | * | |
ac11a2b3 MB |
3061 | * @dai: Array of DAIs to unregister |
3062 | * @count: Number of DAIs | |
9115171a | 3063 | */ |
f0fba2ad | 3064 | void snd_soc_unregister_dais(struct device *dev, size_t count) |
9115171a MB |
3065 | { |
3066 | int i; | |
3067 | ||
3068 | for (i = 0; i < count; i++) | |
f0fba2ad | 3069 | snd_soc_unregister_dai(dev); |
9115171a MB |
3070 | } |
3071 | EXPORT_SYMBOL_GPL(snd_soc_unregister_dais); | |
3072 | ||
12a48a8c MB |
3073 | /** |
3074 | * snd_soc_register_platform - Register a platform with the ASoC core | |
3075 | * | |
ac11a2b3 | 3076 | * @platform: platform to register |
12a48a8c | 3077 | */ |
f0fba2ad LG |
3078 | int snd_soc_register_platform(struct device *dev, |
3079 | struct snd_soc_platform_driver *platform_drv) | |
12a48a8c | 3080 | { |
f0fba2ad LG |
3081 | struct snd_soc_platform *platform; |
3082 | ||
3083 | dev_dbg(dev, "platform register %s\n", dev_name(dev)); | |
3084 | ||
3085 | platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL); | |
3086 | if (platform == NULL) | |
3087 | return -ENOMEM; | |
3088 | ||
3089 | /* create platform component name */ | |
3090 | platform->name = fmt_single_name(dev, &platform->id); | |
3091 | if (platform->name == NULL) { | |
3092 | kfree(platform); | |
3093 | return -ENOMEM; | |
3094 | } | |
12a48a8c | 3095 | |
f0fba2ad LG |
3096 | platform->dev = dev; |
3097 | platform->driver = platform_drv; | |
12a48a8c MB |
3098 | |
3099 | mutex_lock(&client_mutex); | |
3100 | list_add(&platform->list, &platform_list); | |
435c5e25 | 3101 | snd_soc_instantiate_cards(); |
12a48a8c MB |
3102 | mutex_unlock(&client_mutex); |
3103 | ||
3104 | pr_debug("Registered platform '%s'\n", platform->name); | |
3105 | ||
3106 | return 0; | |
3107 | } | |
3108 | EXPORT_SYMBOL_GPL(snd_soc_register_platform); | |
3109 | ||
3110 | /** | |
3111 | * snd_soc_unregister_platform - Unregister a platform from the ASoC core | |
3112 | * | |
ac11a2b3 | 3113 | * @platform: platform to unregister |
12a48a8c | 3114 | */ |
f0fba2ad | 3115 | void snd_soc_unregister_platform(struct device *dev) |
12a48a8c | 3116 | { |
f0fba2ad LG |
3117 | struct snd_soc_platform *platform; |
3118 | ||
3119 | list_for_each_entry(platform, &platform_list, list) { | |
3120 | if (dev == platform->dev) | |
3121 | goto found; | |
3122 | } | |
3123 | return; | |
3124 | ||
3125 | found: | |
12a48a8c MB |
3126 | mutex_lock(&client_mutex); |
3127 | list_del(&platform->list); | |
3128 | mutex_unlock(&client_mutex); | |
3129 | ||
3130 | pr_debug("Unregistered platform '%s'\n", platform->name); | |
f0fba2ad LG |
3131 | kfree(platform->name); |
3132 | kfree(platform); | |
12a48a8c MB |
3133 | } |
3134 | EXPORT_SYMBOL_GPL(snd_soc_unregister_platform); | |
3135 | ||
151ab22c MB |
3136 | static u64 codec_format_map[] = { |
3137 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE, | |
3138 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE, | |
3139 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE, | |
3140 | SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, | |
3141 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE, | |
3142 | SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE, | |
3143 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3144 | SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE, | |
3145 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE, | |
3146 | SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE, | |
3147 | SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE, | |
3148 | SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE, | |
3149 | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE, | |
3150 | SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE, | |
3151 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | |
3152 | | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE, | |
3153 | }; | |
3154 | ||
3155 | /* Fix up the DAI formats for endianness: codecs don't actually see | |
3156 | * the endianness of the data but we're using the CPU format | |
3157 | * definitions which do need to include endianness so we ensure that | |
3158 | * codec DAIs always have both big and little endian variants set. | |
3159 | */ | |
3160 | static void fixup_codec_formats(struct snd_soc_pcm_stream *stream) | |
3161 | { | |
3162 | int i; | |
3163 | ||
3164 | for (i = 0; i < ARRAY_SIZE(codec_format_map); i++) | |
3165 | if (stream->formats & codec_format_map[i]) | |
3166 | stream->formats |= codec_format_map[i]; | |
3167 | } | |
3168 | ||
0d0cf00a MB |
3169 | /** |
3170 | * snd_soc_register_codec - Register a codec with the ASoC core | |
3171 | * | |
ac11a2b3 | 3172 | * @codec: codec to register |
0d0cf00a | 3173 | */ |
f0fba2ad LG |
3174 | int snd_soc_register_codec(struct device *dev, |
3175 | struct snd_soc_codec_driver *codec_drv, | |
3176 | struct snd_soc_dai_driver *dai_drv, int num_dai) | |
0d0cf00a | 3177 | { |
f0fba2ad LG |
3178 | struct snd_soc_codec *codec; |
3179 | int ret, i; | |
151ab22c | 3180 | |
f0fba2ad LG |
3181 | dev_dbg(dev, "codec register %s\n", dev_name(dev)); |
3182 | ||
3183 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
3184 | if (codec == NULL) | |
3185 | return -ENOMEM; | |
0d0cf00a | 3186 | |
f0fba2ad LG |
3187 | /* create CODEC component name */ |
3188 | codec->name = fmt_single_name(dev, &codec->id); | |
3189 | if (codec->name == NULL) { | |
3190 | kfree(codec); | |
3191 | return -ENOMEM; | |
3192 | } | |
3193 | ||
3194 | /* allocate CODEC register cache */ | |
3195 | if (codec_drv->reg_cache_size && codec_drv->reg_word_size) { | |
0d0cf00a | 3196 | |
f0fba2ad LG |
3197 | if (codec_drv->reg_cache_default) |
3198 | codec->reg_cache = kmemdup(codec_drv->reg_cache_default, | |
3199 | codec_drv->reg_cache_size * codec_drv->reg_word_size, GFP_KERNEL); | |
3200 | else | |
3201 | codec->reg_cache = kzalloc(codec_drv->reg_cache_size * | |
3202 | codec_drv->reg_word_size, GFP_KERNEL); | |
0d0cf00a | 3203 | |
f0fba2ad LG |
3204 | if (codec->reg_cache == NULL) { |
3205 | kfree(codec->name); | |
3206 | kfree(codec); | |
3207 | return -ENOMEM; | |
3208 | } | |
151ab22c MB |
3209 | } |
3210 | ||
f0fba2ad LG |
3211 | codec->dev = dev; |
3212 | codec->driver = codec_drv; | |
3213 | codec->bias_level = SND_SOC_BIAS_OFF; | |
3214 | codec->num_dai = num_dai; | |
3215 | mutex_init(&codec->mutex); | |
3216 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
3217 | INIT_LIST_HEAD(&codec->dapm_paths); | |
3218 | ||
3219 | for (i = 0; i < num_dai; i++) { | |
3220 | fixup_codec_formats(&dai_drv[i].playback); | |
3221 | fixup_codec_formats(&dai_drv[i].capture); | |
3222 | } | |
3223 | ||
26b01ccd MB |
3224 | /* register any DAIs */ |
3225 | if (num_dai) { | |
3226 | ret = snd_soc_register_dais(dev, dai_drv, num_dai); | |
3227 | if (ret < 0) | |
f0fba2ad | 3228 | goto error; |
26b01ccd | 3229 | } |
f0fba2ad | 3230 | |
0d0cf00a MB |
3231 | mutex_lock(&client_mutex); |
3232 | list_add(&codec->list, &codec_list); | |
3233 | snd_soc_instantiate_cards(); | |
3234 | mutex_unlock(&client_mutex); | |
3235 | ||
3236 | pr_debug("Registered codec '%s'\n", codec->name); | |
0d0cf00a | 3237 | return 0; |
f0fba2ad LG |
3238 | |
3239 | error: | |
3240 | for (i--; i >= 0; i--) | |
3241 | snd_soc_unregister_dai(dev); | |
3242 | ||
3243 | if (codec->reg_cache) | |
3244 | kfree(codec->reg_cache); | |
3245 | kfree(codec->name); | |
3246 | kfree(codec); | |
3247 | return ret; | |
0d0cf00a MB |
3248 | } |
3249 | EXPORT_SYMBOL_GPL(snd_soc_register_codec); | |
3250 | ||
3251 | /** | |
3252 | * snd_soc_unregister_codec - Unregister a codec from the ASoC core | |
3253 | * | |
ac11a2b3 | 3254 | * @codec: codec to unregister |
0d0cf00a | 3255 | */ |
f0fba2ad | 3256 | void snd_soc_unregister_codec(struct device *dev) |
0d0cf00a | 3257 | { |
f0fba2ad LG |
3258 | struct snd_soc_codec *codec; |
3259 | int i; | |
3260 | ||
3261 | list_for_each_entry(codec, &codec_list, list) { | |
3262 | if (dev == codec->dev) | |
3263 | goto found; | |
3264 | } | |
3265 | return; | |
3266 | ||
3267 | found: | |
26b01ccd MB |
3268 | if (codec->num_dai) |
3269 | for (i = 0; i < codec->num_dai; i++) | |
3270 | snd_soc_unregister_dai(dev); | |
f0fba2ad | 3271 | |
0d0cf00a MB |
3272 | mutex_lock(&client_mutex); |
3273 | list_del(&codec->list); | |
3274 | mutex_unlock(&client_mutex); | |
3275 | ||
3276 | pr_debug("Unregistered codec '%s'\n", codec->name); | |
f0fba2ad LG |
3277 | |
3278 | if (codec->reg_cache) | |
3279 | kfree(codec->reg_cache); | |
3280 | kfree(codec); | |
0d0cf00a MB |
3281 | } |
3282 | EXPORT_SYMBOL_GPL(snd_soc_unregister_codec); | |
3283 | ||
c9b3a40f | 3284 | static int __init snd_soc_init(void) |
db2a4165 | 3285 | { |
384c89e2 MB |
3286 | #ifdef CONFIG_DEBUG_FS |
3287 | debugfs_root = debugfs_create_dir("asoc", NULL); | |
3288 | if (IS_ERR(debugfs_root) || !debugfs_root) { | |
3289 | printk(KERN_WARNING | |
3290 | "ASoC: Failed to create debugfs directory\n"); | |
3291 | debugfs_root = NULL; | |
3292 | } | |
c3c5a19a MB |
3293 | |
3294 | if (!debugfs_create_file("codecs", 0444, debugfs_root, NULL, | |
3295 | &codec_list_fops)) | |
3296 | pr_warn("ASoC: Failed to create CODEC list debugfs file\n"); | |
3297 | ||
f3208780 MB |
3298 | if (!debugfs_create_file("dais", 0444, debugfs_root, NULL, |
3299 | &dai_list_fops)) | |
3300 | pr_warn("ASoC: Failed to create DAI list debugfs file\n"); | |
19c7ac27 MB |
3301 | |
3302 | if (!debugfs_create_file("platforms", 0444, debugfs_root, NULL, | |
3303 | &platform_list_fops)) | |
3304 | pr_warn("ASoC: Failed to create platform list debugfs file\n"); | |
384c89e2 MB |
3305 | #endif |
3306 | ||
db2a4165 FM |
3307 | return platform_driver_register(&soc_driver); |
3308 | } | |
3309 | ||
7d8c16a6 | 3310 | static void __exit snd_soc_exit(void) |
db2a4165 | 3311 | { |
384c89e2 MB |
3312 | #ifdef CONFIG_DEBUG_FS |
3313 | debugfs_remove_recursive(debugfs_root); | |
3314 | #endif | |
3ff3f64b | 3315 | platform_driver_unregister(&soc_driver); |
db2a4165 FM |
3316 | } |
3317 | ||
3318 | module_init(snd_soc_init); | |
3319 | module_exit(snd_soc_exit); | |
3320 | ||
3321 | /* Module information */ | |
d331124d | 3322 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
db2a4165 FM |
3323 | MODULE_DESCRIPTION("ALSA SoC Core"); |
3324 | MODULE_LICENSE("GPL"); | |
8b45a209 | 3325 | MODULE_ALIAS("platform:soc-audio"); |