]>
Commit | Line | Data |
---|---|---|
2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc RP |
16 | * o Platform power domain - can support external components i.e. amps and |
17 | * mic/meadphone insertion events. | |
18 | * o Automatic Mic Bias support | |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
3a4fa0a2 | 21 | * o Delayed powerdown of audio susbsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
24 | * Todo: | |
25 | * o DAPM power change sequencing - allow for configurable per | |
26 | * codec sequences. | |
27 | * o Support for analogue bias optimisation. | |
28 | * o Support for reduced codec oversampling rates. | |
29 | * o Support for reduced codec bias currents. | |
30 | */ | |
31 | ||
32 | #include <linux/module.h> | |
33 | #include <linux/moduleparam.h> | |
34 | #include <linux/init.h> | |
9d0624a7 | 35 | #include <linux/async.h> |
2b97eabc RP |
36 | #include <linux/delay.h> |
37 | #include <linux/pm.h> | |
38 | #include <linux/bitops.h> | |
39 | #include <linux/platform_device.h> | |
40 | #include <linux/jiffies.h> | |
20496ff3 | 41 | #include <linux/debugfs.h> |
5a0e3ad6 | 42 | #include <linux/slab.h> |
2b97eabc RP |
43 | #include <sound/core.h> |
44 | #include <sound/pcm.h> | |
45 | #include <sound/pcm_params.h> | |
ce6120cc | 46 | #include <sound/soc.h> |
2b97eabc RP |
47 | #include <sound/initval.h> |
48 | ||
84e90930 MB |
49 | #include <trace/events/asoc.h> |
50 | ||
2b97eabc RP |
51 | /* dapm power sequences - make this per codec in the future */ |
52 | static int dapm_up_seq[] = { | |
38357ab2 MB |
53 | [snd_soc_dapm_pre] = 0, |
54 | [snd_soc_dapm_supply] = 1, | |
55 | [snd_soc_dapm_micbias] = 2, | |
010ff262 MB |
56 | [snd_soc_dapm_aif_in] = 3, |
57 | [snd_soc_dapm_aif_out] = 3, | |
58 | [snd_soc_dapm_mic] = 4, | |
59 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 60 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
61 | [snd_soc_dapm_value_mux] = 5, |
62 | [snd_soc_dapm_dac] = 6, | |
63 | [snd_soc_dapm_mixer] = 7, | |
64 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
65 | [snd_soc_dapm_pga] = 8, | |
66 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 67 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
68 | [snd_soc_dapm_hp] = 10, |
69 | [snd_soc_dapm_spk] = 10, | |
70 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 71 | }; |
ca9c1aae | 72 | |
2b97eabc | 73 | static int dapm_down_seq[] = { |
38357ab2 MB |
74 | [snd_soc_dapm_pre] = 0, |
75 | [snd_soc_dapm_adc] = 1, | |
76 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 77 | [snd_soc_dapm_spk] = 2, |
d88429a6 | 78 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
79 | [snd_soc_dapm_pga] = 4, |
80 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
81 | [snd_soc_dapm_mixer] = 5, |
82 | [snd_soc_dapm_dac] = 6, | |
83 | [snd_soc_dapm_mic] = 7, | |
84 | [snd_soc_dapm_micbias] = 8, | |
85 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 86 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 87 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
88 | [snd_soc_dapm_aif_in] = 10, |
89 | [snd_soc_dapm_aif_out] = 10, | |
90 | [snd_soc_dapm_supply] = 11, | |
91 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
92 | }; |
93 | ||
12ef193d | 94 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
95 | { |
96 | if (pop_time) | |
97 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
98 | } | |
99 | ||
fd8d3bc0 | 100 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
101 | { |
102 | va_list args; | |
fd8d3bc0 | 103 | char *buf; |
15e4c72f | 104 | |
fd8d3bc0 JN |
105 | if (!pop_time) |
106 | return; | |
15e4c72f | 107 | |
fd8d3bc0 JN |
108 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
109 | if (buf == NULL) | |
110 | return; | |
15e4c72f | 111 | |
fd8d3bc0 JN |
112 | va_start(args, fmt); |
113 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 114 | dev_info(dev, "%s", buf); |
15e4c72f | 115 | va_end(args); |
fd8d3bc0 JN |
116 | |
117 | kfree(buf); | |
15e4c72f MB |
118 | } |
119 | ||
2b97eabc | 120 | /* create a new dapm widget */ |
88cb4290 | 121 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
122 | const struct snd_soc_dapm_widget *_widget) |
123 | { | |
88cb4290 | 124 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
125 | } |
126 | ||
452c5eaa MB |
127 | /** |
128 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 129 | * @dapm: DAPM context |
452c5eaa MB |
130 | * @level: level to configure |
131 | * | |
132 | * Configure the bias (power) levels for the SoC audio device. | |
133 | * | |
134 | * Returns 0 for success else error. | |
135 | */ | |
ed5a4c47 | 136 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 137 | enum snd_soc_bias_level level) |
452c5eaa | 138 | { |
ed5a4c47 | 139 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
140 | int ret = 0; |
141 | ||
f83fba8b MB |
142 | switch (level) { |
143 | case SND_SOC_BIAS_ON: | |
ce6120cc | 144 | dev_dbg(dapm->dev, "Setting full bias\n"); |
f83fba8b MB |
145 | break; |
146 | case SND_SOC_BIAS_PREPARE: | |
ce6120cc | 147 | dev_dbg(dapm->dev, "Setting bias prepare\n"); |
f83fba8b MB |
148 | break; |
149 | case SND_SOC_BIAS_STANDBY: | |
ce6120cc | 150 | dev_dbg(dapm->dev, "Setting standby bias\n"); |
f83fba8b MB |
151 | break; |
152 | case SND_SOC_BIAS_OFF: | |
ce6120cc | 153 | dev_dbg(dapm->dev, "Setting bias off\n"); |
f83fba8b MB |
154 | break; |
155 | default: | |
ce6120cc | 156 | dev_err(dapm->dev, "Setting invalid bias %d\n", level); |
f83fba8b MB |
157 | return -EINVAL; |
158 | } | |
159 | ||
84e90930 MB |
160 | trace_snd_soc_bias_level_start(card, level); |
161 | ||
f0fba2ad | 162 | if (card && card->set_bias_level) |
452c5eaa | 163 | ret = card->set_bias_level(card, level); |
474e09ca | 164 | if (ret == 0) { |
ce6120cc LG |
165 | if (dapm->codec && dapm->codec->driver->set_bias_level) |
166 | ret = dapm->codec->driver->set_bias_level(dapm->codec, level); | |
474e09ca | 167 | else |
ce6120cc | 168 | dapm->bias_level = level; |
474e09ca | 169 | } |
1badabd9 MB |
170 | if (ret == 0) { |
171 | if (card && card->set_bias_level_post) | |
172 | ret = card->set_bias_level_post(card, level); | |
173 | } | |
452c5eaa | 174 | |
84e90930 MB |
175 | trace_snd_soc_bias_level_done(card, level); |
176 | ||
452c5eaa MB |
177 | return ret; |
178 | } | |
179 | ||
2b97eabc RP |
180 | /* set up initial codec paths */ |
181 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
182 | struct snd_soc_dapm_path *p, int i) | |
183 | { | |
184 | switch (w->id) { | |
185 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
186 | case snd_soc_dapm_mixer: |
187 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 188 | int val; |
4eaa9819 JS |
189 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
190 | w->kcontrols[i].private_value; | |
815ecf8d JS |
191 | unsigned int reg = mc->reg; |
192 | unsigned int shift = mc->shift; | |
4eaa9819 | 193 | int max = mc->max; |
815ecf8d JS |
194 | unsigned int mask = (1 << fls(max)) - 1; |
195 | unsigned int invert = mc->invert; | |
2b97eabc RP |
196 | |
197 | val = snd_soc_read(w->codec, reg); | |
198 | val = (val >> shift) & mask; | |
199 | ||
200 | if ((invert && !val) || (!invert && val)) | |
201 | p->connect = 1; | |
202 | else | |
203 | p->connect = 0; | |
204 | } | |
205 | break; | |
206 | case snd_soc_dapm_mux: { | |
207 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; | |
208 | int val, item, bitmask; | |
209 | ||
f8ba0b7b | 210 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
211 | ; |
212 | val = snd_soc_read(w->codec, e->reg); | |
213 | item = (val >> e->shift_l) & (bitmask - 1); | |
214 | ||
215 | p->connect = 0; | |
f8ba0b7b | 216 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
217 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
218 | p->connect = 1; | |
219 | } | |
220 | } | |
221 | break; | |
24ff33ac DP |
222 | case snd_soc_dapm_virt_mux: { |
223 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; | |
224 | ||
225 | p->connect = 0; | |
226 | /* since a virtual mux has no backing registers to | |
227 | * decide which path to connect, it will try to match | |
228 | * with the first enumeration. This is to ensure | |
229 | * that the default mux choice (the first) will be | |
230 | * correctly powered up during initialization. | |
231 | */ | |
232 | if (!strcmp(p->name, e->texts[0])) | |
233 | p->connect = 1; | |
234 | } | |
235 | break; | |
2e72f8e3 | 236 | case snd_soc_dapm_value_mux: { |
74155556 | 237 | struct soc_enum *e = (struct soc_enum *) |
2e72f8e3 PU |
238 | w->kcontrols[i].private_value; |
239 | int val, item; | |
240 | ||
241 | val = snd_soc_read(w->codec, e->reg); | |
242 | val = (val >> e->shift_l) & e->mask; | |
243 | for (item = 0; item < e->max; item++) { | |
244 | if (val == e->values[item]) | |
245 | break; | |
246 | } | |
247 | ||
248 | p->connect = 0; | |
249 | for (i = 0; i < e->max; i++) { | |
250 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
251 | p->connect = 1; | |
252 | } | |
253 | } | |
254 | break; | |
2b97eabc RP |
255 | /* does not effect routing - always connected */ |
256 | case snd_soc_dapm_pga: | |
d88429a6 | 257 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
258 | case snd_soc_dapm_output: |
259 | case snd_soc_dapm_adc: | |
260 | case snd_soc_dapm_input: | |
261 | case snd_soc_dapm_dac: | |
262 | case snd_soc_dapm_micbias: | |
263 | case snd_soc_dapm_vmid: | |
246d0a17 | 264 | case snd_soc_dapm_supply: |
010ff262 MB |
265 | case snd_soc_dapm_aif_in: |
266 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
267 | p->connect = 1; |
268 | break; | |
269 | /* does effect routing - dynamically connected */ | |
270 | case snd_soc_dapm_hp: | |
271 | case snd_soc_dapm_mic: | |
272 | case snd_soc_dapm_spk: | |
273 | case snd_soc_dapm_line: | |
274 | case snd_soc_dapm_pre: | |
275 | case snd_soc_dapm_post: | |
276 | p->connect = 0; | |
277 | break; | |
278 | } | |
279 | } | |
280 | ||
74b8f955 | 281 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 282 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
283 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
284 | struct snd_soc_dapm_path *path, const char *control_name, | |
285 | const struct snd_kcontrol_new *kcontrol) | |
286 | { | |
287 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
288 | int i; | |
289 | ||
f8ba0b7b | 290 | for (i = 0; i < e->max; i++) { |
2b97eabc | 291 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 292 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
293 | list_add(&path->list_sink, &dest->sources); |
294 | list_add(&path->list_source, &src->sinks); | |
295 | path->name = (char*)e->texts[i]; | |
296 | dapm_set_path_status(dest, path, 0); | |
297 | return 0; | |
298 | } | |
299 | } | |
300 | ||
301 | return -ENODEV; | |
302 | } | |
303 | ||
74b8f955 | 304 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 305 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
306 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
307 | struct snd_soc_dapm_path *path, const char *control_name) | |
308 | { | |
309 | int i; | |
310 | ||
311 | /* search for mixer kcontrol */ | |
312 | for (i = 0; i < dest->num_kcontrols; i++) { | |
313 | if (!strcmp(control_name, dest->kcontrols[i].name)) { | |
8ddab3f5 | 314 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
315 | list_add(&path->list_sink, &dest->sources); |
316 | list_add(&path->list_source, &src->sinks); | |
317 | path->name = dest->kcontrols[i].name; | |
318 | dapm_set_path_status(dest, path, i); | |
319 | return 0; | |
320 | } | |
321 | } | |
322 | return -ENODEV; | |
323 | } | |
324 | ||
2b97eabc | 325 | /* create new dapm mixer control */ |
ce6120cc | 326 | static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
327 | struct snd_soc_dapm_widget *w) |
328 | { | |
329 | int i, ret = 0; | |
3e5ff4df | 330 | size_t name_len, prefix_len; |
2b97eabc | 331 | struct snd_soc_dapm_path *path; |
12ea2c78 | 332 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f MB |
333 | const char *prefix; |
334 | ||
335 | if (dapm->codec) | |
336 | prefix = dapm->codec->name_prefix; | |
337 | else | |
338 | prefix = NULL; | |
2b97eabc | 339 | |
3e5ff4df MB |
340 | if (prefix) |
341 | prefix_len = strlen(prefix) + 1; | |
342 | else | |
343 | prefix_len = 0; | |
344 | ||
2b97eabc RP |
345 | /* add kcontrol */ |
346 | for (i = 0; i < w->num_kcontrols; i++) { | |
347 | ||
348 | /* match name */ | |
349 | list_for_each_entry(path, &w->sources, list_sink) { | |
350 | ||
351 | /* mixer/mux paths name must match control name */ | |
352 | if (path->name != (char*)w->kcontrols[i].name) | |
353 | continue; | |
354 | ||
ca9c1aae IM |
355 | /* add dapm control with long name. |
356 | * for dapm_mixer this is the concatenation of the | |
357 | * mixer and kcontrol name. | |
358 | * for dapm_mixer_named_ctl this is simply the | |
359 | * kcontrol name. | |
360 | */ | |
361 | name_len = strlen(w->kcontrols[i].name) + 1; | |
07495f3e | 362 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
363 | name_len += 1 + strlen(w->name); |
364 | ||
219b93f5 | 365 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 366 | |
2b97eabc RP |
367 | if (path->long_name == NULL) |
368 | return -ENOMEM; | |
369 | ||
ca9c1aae | 370 | switch (w->id) { |
ca9c1aae | 371 | default: |
3e5ff4df MB |
372 | /* The control will get a prefix from |
373 | * the control creation process but | |
374 | * we're also using the same prefix | |
375 | * for widgets so cut the prefix off | |
376 | * the front of the widget name. | |
377 | */ | |
ca9c1aae | 378 | snprintf(path->long_name, name_len, "%s %s", |
3e5ff4df MB |
379 | w->name + prefix_len, |
380 | w->kcontrols[i].name); | |
07495f3e | 381 | break; |
ca9c1aae IM |
382 | case snd_soc_dapm_mixer_named_ctl: |
383 | snprintf(path->long_name, name_len, "%s", | |
384 | w->kcontrols[i].name); | |
07495f3e | 385 | break; |
ca9c1aae IM |
386 | } |
387 | ||
219b93f5 MB |
388 | path->long_name[name_len - 1] = '\0'; |
389 | ||
2b97eabc | 390 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
efb7ac3f | 391 | path->long_name, prefix); |
ce6120cc | 392 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 393 | if (ret < 0) { |
f7d41ae8 JN |
394 | dev_err(dapm->dev, |
395 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
396 | path->long_name, ret); | |
2b97eabc RP |
397 | kfree(path->long_name); |
398 | path->long_name = NULL; | |
399 | return ret; | |
400 | } | |
401 | } | |
402 | } | |
403 | return ret; | |
404 | } | |
405 | ||
406 | /* create new dapm mux control */ | |
ce6120cc | 407 | static int dapm_new_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
408 | struct snd_soc_dapm_widget *w) |
409 | { | |
410 | struct snd_soc_dapm_path *path = NULL; | |
411 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 412 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 413 | const char *prefix; |
3e5ff4df | 414 | size_t prefix_len; |
2b97eabc RP |
415 | int ret = 0; |
416 | ||
417 | if (!w->num_kcontrols) { | |
f7d41ae8 | 418 | dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name); |
2b97eabc RP |
419 | return -EINVAL; |
420 | } | |
421 | ||
efb7ac3f MB |
422 | if (dapm->codec) |
423 | prefix = dapm->codec->name_prefix; | |
424 | else | |
425 | prefix = NULL; | |
426 | ||
3e5ff4df MB |
427 | if (prefix) |
428 | prefix_len = strlen(prefix) + 1; | |
429 | else | |
430 | prefix_len = 0; | |
431 | ||
432 | /* The control will get a prefix from the control creation | |
433 | * process but we're also using the same prefix for widgets so | |
434 | * cut the prefix off the front of the widget name. | |
435 | */ | |
436 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name + prefix_len, | |
437 | prefix); | |
ce6120cc LG |
438 | ret = snd_ctl_add(card, kcontrol); |
439 | ||
2b97eabc RP |
440 | if (ret < 0) |
441 | goto err; | |
442 | ||
443 | list_for_each_entry(path, &w->sources, list_sink) | |
444 | path->kcontrol = kcontrol; | |
445 | ||
446 | return ret; | |
447 | ||
448 | err: | |
f7d41ae8 | 449 | dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name); |
2b97eabc RP |
450 | return ret; |
451 | } | |
452 | ||
453 | /* create new dapm volume control */ | |
ce6120cc | 454 | static int dapm_new_pga(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
455 | struct snd_soc_dapm_widget *w) |
456 | { | |
a6c65736 | 457 | if (w->num_kcontrols) |
f7d41ae8 JN |
458 | dev_err(w->dapm->dev, |
459 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 460 | |
a6c65736 | 461 | return 0; |
2b97eabc RP |
462 | } |
463 | ||
464 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 465 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
466 | { |
467 | struct snd_soc_dapm_path *p; | |
468 | ||
8ddab3f5 | 469 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
470 | p->walked = 0; |
471 | } | |
472 | ||
9949788b MB |
473 | /* We implement power down on suspend by checking the power state of |
474 | * the ALSA card - when we are suspending the ALSA state for the card | |
475 | * is set to D3. | |
476 | */ | |
477 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
478 | { | |
12ea2c78 | 479 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 480 | |
f0fba2ad | 481 | switch (level) { |
9949788b MB |
482 | case SNDRV_CTL_POWER_D3hot: |
483 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 484 | if (widget->ignore_suspend) |
f7d41ae8 JN |
485 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
486 | widget->name); | |
1547aba9 | 487 | return widget->ignore_suspend; |
9949788b MB |
488 | default: |
489 | return 1; | |
490 | } | |
491 | } | |
492 | ||
2b97eabc RP |
493 | /* |
494 | * Recursively check for a completed path to an active or physically connected | |
495 | * output widget. Returns number of complete paths. | |
496 | */ | |
497 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
498 | { | |
499 | struct snd_soc_dapm_path *path; | |
500 | int con = 0; | |
501 | ||
246d0a17 MB |
502 | if (widget->id == snd_soc_dapm_supply) |
503 | return 0; | |
504 | ||
010ff262 MB |
505 | switch (widget->id) { |
506 | case snd_soc_dapm_adc: | |
507 | case snd_soc_dapm_aif_out: | |
508 | if (widget->active) | |
9949788b | 509 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
510 | default: |
511 | break; | |
512 | } | |
2b97eabc RP |
513 | |
514 | if (widget->connected) { | |
515 | /* connected pin ? */ | |
516 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 517 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
518 | |
519 | /* connected jack or spk ? */ | |
520 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 521 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 522 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
523 | } |
524 | ||
525 | list_for_each_entry(path, &widget->sinks, list_source) { | |
526 | if (path->walked) | |
527 | continue; | |
528 | ||
529 | if (path->sink && path->connect) { | |
530 | path->walked = 1; | |
531 | con += is_connected_output_ep(path->sink); | |
532 | } | |
533 | } | |
534 | ||
535 | return con; | |
536 | } | |
537 | ||
538 | /* | |
539 | * Recursively check for a completed path to an active or physically connected | |
540 | * input widget. Returns number of complete paths. | |
541 | */ | |
542 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
543 | { | |
544 | struct snd_soc_dapm_path *path; | |
545 | int con = 0; | |
546 | ||
246d0a17 MB |
547 | if (widget->id == snd_soc_dapm_supply) |
548 | return 0; | |
549 | ||
2b97eabc | 550 | /* active stream ? */ |
010ff262 MB |
551 | switch (widget->id) { |
552 | case snd_soc_dapm_dac: | |
553 | case snd_soc_dapm_aif_in: | |
554 | if (widget->active) | |
9949788b | 555 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
556 | default: |
557 | break; | |
558 | } | |
2b97eabc RP |
559 | |
560 | if (widget->connected) { | |
561 | /* connected pin ? */ | |
562 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 563 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
564 | |
565 | /* connected VMID/Bias for lower pops */ | |
566 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 567 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
568 | |
569 | /* connected jack ? */ | |
eaeae5d9 PU |
570 | if (widget->id == snd_soc_dapm_mic || |
571 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 572 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
573 | } |
574 | ||
575 | list_for_each_entry(path, &widget->sources, list_sink) { | |
576 | if (path->walked) | |
577 | continue; | |
578 | ||
579 | if (path->source && path->connect) { | |
580 | path->walked = 1; | |
581 | con += is_connected_input_ep(path->source); | |
582 | } | |
583 | } | |
584 | ||
585 | return con; | |
586 | } | |
587 | ||
e2be2ccf JN |
588 | /* |
589 | * Handler for generic register modifier widget. | |
590 | */ | |
591 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
592 | struct snd_kcontrol *kcontrol, int event) | |
593 | { | |
594 | unsigned int val; | |
595 | ||
596 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
597 | val = w->on_val; | |
598 | else | |
599 | val = w->off_val; | |
600 | ||
601 | snd_soc_update_bits(w->codec, -(w->reg + 1), | |
602 | w->mask << w->shift, val << w->shift); | |
603 | ||
604 | return 0; | |
605 | } | |
11589418 | 606 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 607 | |
cd0f2d47 MB |
608 | /* Generic check to see if a widget should be powered. |
609 | */ | |
610 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
611 | { | |
612 | int in, out; | |
613 | ||
614 | in = is_connected_input_ep(w); | |
ce6120cc | 615 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 616 | out = is_connected_output_ep(w); |
ce6120cc | 617 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
618 | return out != 0 && in != 0; |
619 | } | |
620 | ||
6ea31b9f MB |
621 | /* Check to see if an ADC has power */ |
622 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
623 | { | |
624 | int in; | |
625 | ||
626 | if (w->active) { | |
627 | in = is_connected_input_ep(w); | |
ce6120cc | 628 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
629 | return in != 0; |
630 | } else { | |
631 | return dapm_generic_check_power(w); | |
632 | } | |
633 | } | |
634 | ||
635 | /* Check to see if a DAC has power */ | |
636 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
637 | { | |
638 | int out; | |
639 | ||
640 | if (w->active) { | |
641 | out = is_connected_output_ep(w); | |
ce6120cc | 642 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
643 | return out != 0; |
644 | } else { | |
645 | return dapm_generic_check_power(w); | |
646 | } | |
647 | } | |
648 | ||
246d0a17 MB |
649 | /* Check to see if a power supply is needed */ |
650 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
651 | { | |
652 | struct snd_soc_dapm_path *path; | |
653 | int power = 0; | |
654 | ||
655 | /* Check if one of our outputs is connected */ | |
656 | list_for_each_entry(path, &w->sinks, list_source) { | |
215edda3 MB |
657 | if (path->connected && |
658 | !path->connected(path->source, path->sink)) | |
659 | continue; | |
660 | ||
3017358a MB |
661 | if (!path->sink) |
662 | continue; | |
663 | ||
664 | if (path->sink->force) { | |
665 | power = 1; | |
666 | break; | |
667 | } | |
668 | ||
669 | if (path->sink->power_check && | |
246d0a17 MB |
670 | path->sink->power_check(path->sink)) { |
671 | power = 1; | |
672 | break; | |
673 | } | |
674 | } | |
675 | ||
ce6120cc | 676 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
677 | |
678 | return power; | |
679 | } | |
680 | ||
38357ab2 MB |
681 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
682 | struct snd_soc_dapm_widget *b, | |
828a842f | 683 | bool power_up) |
42aa3418 | 684 | { |
828a842f MB |
685 | int *sort; |
686 | ||
687 | if (power_up) | |
688 | sort = dapm_up_seq; | |
689 | else | |
690 | sort = dapm_down_seq; | |
691 | ||
38357ab2 MB |
692 | if (sort[a->id] != sort[b->id]) |
693 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
694 | if (a->subseq != b->subseq) { |
695 | if (power_up) | |
696 | return a->subseq - b->subseq; | |
697 | else | |
698 | return b->subseq - a->subseq; | |
699 | } | |
b22ead2a MB |
700 | if (a->reg != b->reg) |
701 | return a->reg - b->reg; | |
84dab567 MB |
702 | if (a->dapm != b->dapm) |
703 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 704 | |
38357ab2 MB |
705 | return 0; |
706 | } | |
42aa3418 | 707 | |
38357ab2 MB |
708 | /* Insert a widget in order into a DAPM power sequence. */ |
709 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
710 | struct list_head *list, | |
828a842f | 711 | bool power_up) |
38357ab2 MB |
712 | { |
713 | struct snd_soc_dapm_widget *w; | |
714 | ||
715 | list_for_each_entry(w, list, power_list) | |
828a842f | 716 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
717 | list_add_tail(&new_widget->power_list, &w->power_list); |
718 | return; | |
719 | } | |
720 | ||
721 | list_add_tail(&new_widget->power_list, list); | |
722 | } | |
723 | ||
68f89ad8 MB |
724 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
725 | struct snd_soc_dapm_widget *w, int event) | |
726 | { | |
727 | struct snd_soc_card *card = dapm->card; | |
728 | const char *ev_name; | |
729 | int power, ret; | |
730 | ||
731 | switch (event) { | |
732 | case SND_SOC_DAPM_PRE_PMU: | |
733 | ev_name = "PRE_PMU"; | |
734 | power = 1; | |
735 | break; | |
736 | case SND_SOC_DAPM_POST_PMU: | |
737 | ev_name = "POST_PMU"; | |
738 | power = 1; | |
739 | break; | |
740 | case SND_SOC_DAPM_PRE_PMD: | |
741 | ev_name = "PRE_PMD"; | |
742 | power = 0; | |
743 | break; | |
744 | case SND_SOC_DAPM_POST_PMD: | |
745 | ev_name = "POST_PMD"; | |
746 | power = 0; | |
747 | break; | |
748 | default: | |
749 | BUG(); | |
750 | return; | |
751 | } | |
752 | ||
753 | if (w->power != power) | |
754 | return; | |
755 | ||
756 | if (w->event && (w->event_flags & event)) { | |
757 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
758 | w->name, ev_name); | |
84e90930 | 759 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 760 | ret = w->event(w, NULL, event); |
84e90930 | 761 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
762 | if (ret < 0) |
763 | pr_err("%s: %s event failed: %d\n", | |
764 | ev_name, w->name, ret); | |
765 | } | |
766 | } | |
767 | ||
b22ead2a | 768 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 769 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 770 | struct list_head *pending) |
163cac06 | 771 | { |
3a45b867 | 772 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
773 | struct snd_soc_dapm_widget *w; |
774 | int reg, power; | |
b22ead2a MB |
775 | unsigned int value = 0; |
776 | unsigned int mask = 0; | |
777 | unsigned int cur_mask; | |
778 | ||
779 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
780 | power_list)->reg; | |
781 | ||
782 | list_for_each_entry(w, pending, power_list) { | |
783 | cur_mask = 1 << w->shift; | |
784 | BUG_ON(reg != w->reg); | |
785 | ||
786 | if (w->invert) | |
787 | power = !w->power; | |
788 | else | |
789 | power = w->power; | |
790 | ||
791 | mask |= cur_mask; | |
792 | if (power) | |
793 | value |= cur_mask; | |
794 | ||
fd8d3bc0 | 795 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
796 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
797 | w->name, reg, value, mask); | |
81628103 | 798 | |
68f89ad8 MB |
799 | /* Check for events */ |
800 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
801 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
802 | } |
803 | ||
804 | if (reg >= 0) { | |
fd8d3bc0 | 805 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 806 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
807 | value, mask, reg, card->pop_time); |
808 | pop_wait(card->pop_time); | |
ce6120cc | 809 | snd_soc_update_bits(dapm->codec, reg, mask, value); |
b22ead2a MB |
810 | } |
811 | ||
81628103 | 812 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
813 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
814 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 815 | } |
b22ead2a | 816 | } |
42aa3418 | 817 | |
b22ead2a MB |
818 | /* Apply a DAPM power sequence. |
819 | * | |
820 | * We walk over a pre-sorted list of widgets to apply power to. In | |
821 | * order to minimise the number of writes to the device required | |
822 | * multiple widgets will be updated in a single write where possible. | |
823 | * Currently anything that requires more than a single write is not | |
824 | * handled. | |
825 | */ | |
ce6120cc | 826 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 827 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
828 | { |
829 | struct snd_soc_dapm_widget *w, *n; | |
830 | LIST_HEAD(pending); | |
831 | int cur_sort = -1; | |
20e4859d | 832 | int cur_subseq = -1; |
b22ead2a | 833 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 834 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 835 | int ret, i; |
828a842f MB |
836 | int *sort; |
837 | ||
838 | if (power_up) | |
839 | sort = dapm_up_seq; | |
840 | else | |
841 | sort = dapm_down_seq; | |
163cac06 | 842 | |
b22ead2a MB |
843 | list_for_each_entry_safe(w, n, list, power_list) { |
844 | ret = 0; | |
845 | ||
846 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 847 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 848 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 849 | if (!list_empty(&pending)) |
7be31be8 | 850 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 851 | |
474b62d6 MB |
852 | if (cur_dapm && cur_dapm->seq_notifier) { |
853 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
854 | if (sort[i] == cur_sort) | |
855 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
856 | i, |
857 | cur_subseq); | |
474b62d6 MB |
858 | } |
859 | ||
b22ead2a MB |
860 | INIT_LIST_HEAD(&pending); |
861 | cur_sort = -1; | |
20e4859d | 862 | cur_subseq = -1; |
b22ead2a | 863 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 864 | cur_dapm = NULL; |
b22ead2a MB |
865 | } |
866 | ||
163cac06 MB |
867 | switch (w->id) { |
868 | case snd_soc_dapm_pre: | |
869 | if (!w->event) | |
b22ead2a MB |
870 | list_for_each_entry_safe_continue(w, n, list, |
871 | power_list); | |
163cac06 | 872 | |
b22ead2a | 873 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
874 | ret = w->event(w, |
875 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 876 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
877 | ret = w->event(w, |
878 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
879 | break; |
880 | ||
881 | case snd_soc_dapm_post: | |
882 | if (!w->event) | |
b22ead2a MB |
883 | list_for_each_entry_safe_continue(w, n, list, |
884 | power_list); | |
163cac06 | 885 | |
b22ead2a | 886 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
887 | ret = w->event(w, |
888 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 889 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
890 | ret = w->event(w, |
891 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
892 | break; |
893 | ||
b22ead2a | 894 | default: |
81628103 MB |
895 | /* Queue it up for application */ |
896 | cur_sort = sort[w->id]; | |
20e4859d | 897 | cur_subseq = w->subseq; |
81628103 | 898 | cur_reg = w->reg; |
7be31be8 | 899 | cur_dapm = w->dapm; |
81628103 MB |
900 | list_move(&w->power_list, &pending); |
901 | break; | |
163cac06 | 902 | } |
b22ead2a MB |
903 | |
904 | if (ret < 0) | |
f7d41ae8 JN |
905 | dev_err(w->dapm->dev, |
906 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 907 | } |
b22ead2a MB |
908 | |
909 | if (!list_empty(&pending)) | |
28e86808 | 910 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
911 | |
912 | if (cur_dapm && cur_dapm->seq_notifier) { | |
913 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
914 | if (sort[i] == cur_sort) | |
915 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 916 | i, cur_subseq); |
474b62d6 | 917 | } |
42aa3418 MB |
918 | } |
919 | ||
97404f2e MB |
920 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
921 | { | |
922 | struct snd_soc_dapm_update *update = dapm->update; | |
923 | struct snd_soc_dapm_widget *w; | |
924 | int ret; | |
925 | ||
926 | if (!update) | |
927 | return; | |
928 | ||
929 | w = update->widget; | |
930 | ||
931 | if (w->event && | |
932 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
933 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
934 | if (ret != 0) | |
935 | pr_err("%s DAPM pre-event failed: %d\n", | |
936 | w->name, ret); | |
937 | } | |
938 | ||
939 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, | |
940 | update->val); | |
941 | if (ret < 0) | |
942 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
943 | ||
944 | if (w->event && | |
945 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
946 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
947 | if (ret != 0) | |
948 | pr_err("%s DAPM post-event failed: %d\n", | |
949 | w->name, ret); | |
950 | } | |
951 | } | |
952 | ||
9d0624a7 MB |
953 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
954 | * they're changing state. | |
955 | */ | |
956 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
957 | { | |
958 | struct snd_soc_dapm_context *d = data; | |
959 | int ret; | |
960 | ||
961 | if (d->dev_power && d->bias_level == SND_SOC_BIAS_OFF) { | |
962 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); | |
963 | if (ret != 0) | |
964 | dev_err(d->dev, | |
965 | "Failed to turn on bias: %d\n", ret); | |
966 | } | |
967 | ||
968 | /* If we're changing to all on or all off then prepare */ | |
969 | if ((d->dev_power && d->bias_level == SND_SOC_BIAS_STANDBY) || | |
970 | (!d->dev_power && d->bias_level == SND_SOC_BIAS_ON)) { | |
971 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); | |
972 | if (ret != 0) | |
973 | dev_err(d->dev, | |
974 | "Failed to prepare bias: %d\n", ret); | |
975 | } | |
976 | } | |
977 | ||
978 | /* Async callback run prior to DAPM sequences - brings to their final | |
979 | * state. | |
980 | */ | |
981 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
982 | { | |
983 | struct snd_soc_dapm_context *d = data; | |
984 | int ret; | |
985 | ||
986 | /* If we just powered the last thing off drop to standby bias */ | |
987 | if (d->bias_level == SND_SOC_BIAS_PREPARE && !d->dev_power) { | |
988 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); | |
989 | if (ret != 0) | |
990 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
991 | ret); | |
992 | } | |
97404f2e | 993 | |
9d0624a7 MB |
994 | /* If we're in standby and can support bias off then do that */ |
995 | if (d->bias_level == SND_SOC_BIAS_STANDBY && d->idle_bias_off) { | |
996 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); | |
997 | if (ret != 0) | |
998 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
999 | } | |
1000 | ||
1001 | /* If we just powered up then move to active bias */ | |
1002 | if (d->bias_level == SND_SOC_BIAS_PREPARE && d->dev_power) { | |
1003 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); | |
1004 | if (ret != 0) | |
1005 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1006 | ret); | |
1007 | } | |
1008 | } | |
97404f2e | 1009 | |
2b97eabc RP |
1010 | /* |
1011 | * Scan each dapm widget for complete audio path. | |
1012 | * A complete path is a route that has valid endpoints i.e.:- | |
1013 | * | |
1014 | * o DAC to output pin. | |
1015 | * o Input Pin to ADC. | |
1016 | * o Input pin to Output pin (bypass, sidetone) | |
1017 | * o DAC to ADC (loopback). | |
1018 | */ | |
ce6120cc | 1019 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1020 | { |
12ea2c78 | 1021 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1022 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1023 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1024 | LIST_HEAD(up_list); |
1025 | LIST_HEAD(down_list); | |
9d0624a7 | 1026 | LIST_HEAD(async_domain); |
38357ab2 | 1027 | int power; |
6d3ddc81 | 1028 | |
84e90930 MB |
1029 | trace_snd_soc_dapm_start(card); |
1030 | ||
7be31be8 JN |
1031 | list_for_each_entry(d, &card->dapm_list, list) |
1032 | if (d->n_widgets) | |
1033 | d->dev_power = 0; | |
1034 | ||
6d3ddc81 MB |
1035 | /* Check which widgets we need to power and store them in |
1036 | * lists indicating if they should be powered up or down. | |
1037 | */ | |
97c866de | 1038 | list_for_each_entry(w, &card->widgets, list) { |
6d3ddc81 MB |
1039 | switch (w->id) { |
1040 | case snd_soc_dapm_pre: | |
828a842f | 1041 | dapm_seq_insert(w, &down_list, false); |
6d3ddc81 MB |
1042 | break; |
1043 | case snd_soc_dapm_post: | |
828a842f | 1044 | dapm_seq_insert(w, &up_list, true); |
6d3ddc81 MB |
1045 | break; |
1046 | ||
1047 | default: | |
1048 | if (!w->power_check) | |
1049 | continue; | |
1050 | ||
9949788b | 1051 | if (!w->force) |
50b6bce5 | 1052 | power = w->power_check(w); |
9949788b MB |
1053 | else |
1054 | power = 1; | |
1055 | if (power) | |
7be31be8 | 1056 | w->dapm->dev_power = 1; |
452c5eaa | 1057 | |
6d3ddc81 MB |
1058 | if (w->power == power) |
1059 | continue; | |
1060 | ||
84e90930 MB |
1061 | trace_snd_soc_dapm_widget_power(w, power); |
1062 | ||
6d3ddc81 | 1063 | if (power) |
828a842f | 1064 | dapm_seq_insert(w, &up_list, true); |
6d3ddc81 | 1065 | else |
828a842f | 1066 | dapm_seq_insert(w, &down_list, false); |
6d3ddc81 MB |
1067 | |
1068 | w->power = power; | |
1069 | break; | |
1070 | } | |
2b97eabc RP |
1071 | } |
1072 | ||
b14b76a5 MB |
1073 | /* If there are no DAPM widgets then try to figure out power from the |
1074 | * event type. | |
1075 | */ | |
97c866de | 1076 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1077 | switch (event) { |
1078 | case SND_SOC_DAPM_STREAM_START: | |
1079 | case SND_SOC_DAPM_STREAM_RESUME: | |
7be31be8 | 1080 | dapm->dev_power = 1; |
b14b76a5 | 1081 | break; |
862af8ad | 1082 | case SND_SOC_DAPM_STREAM_STOP: |
7be31be8 | 1083 | dapm->dev_power = !!dapm->codec->active; |
862af8ad | 1084 | break; |
50b6bce5 | 1085 | case SND_SOC_DAPM_STREAM_SUSPEND: |
7be31be8 | 1086 | dapm->dev_power = 0; |
50b6bce5 | 1087 | break; |
b14b76a5 | 1088 | case SND_SOC_DAPM_STREAM_NOP: |
ce6120cc | 1089 | switch (dapm->bias_level) { |
a96ca338 MB |
1090 | case SND_SOC_BIAS_STANDBY: |
1091 | case SND_SOC_BIAS_OFF: | |
7be31be8 | 1092 | dapm->dev_power = 0; |
a96ca338 MB |
1093 | break; |
1094 | default: | |
7be31be8 | 1095 | dapm->dev_power = 1; |
a96ca338 MB |
1096 | break; |
1097 | } | |
50b6bce5 | 1098 | break; |
b14b76a5 MB |
1099 | default: |
1100 | break; | |
1101 | } | |
1102 | } | |
1103 | ||
52ba67bf MB |
1104 | /* Force all contexts in the card to the same bias state */ |
1105 | power = 0; | |
1106 | list_for_each_entry(d, &card->dapm_list, list) | |
1107 | if (d->dev_power) | |
1108 | power = 1; | |
1109 | list_for_each_entry(d, &card->dapm_list, list) | |
1110 | d->dev_power = power; | |
1111 | ||
1112 | ||
9d0624a7 MB |
1113 | /* Run all the bias changes in parallel */ |
1114 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1115 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1116 | &async_domain); | |
1117 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1118 | |
6d3ddc81 | 1119 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1120 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1121 | |
97404f2e MB |
1122 | dapm_widget_update(dapm); |
1123 | ||
6d3ddc81 | 1124 | /* Now power up. */ |
828a842f | 1125 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1126 | |
9d0624a7 MB |
1127 | /* Run all the bias changes in parallel */ |
1128 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1129 | async_schedule_domain(dapm_post_sequence_async, d, | |
1130 | &async_domain); | |
1131 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1132 | |
fd8d3bc0 JN |
1133 | pop_dbg(dapm->dev, card->pop_time, |
1134 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1135 | pop_wait(card->pop_time); |
cb507e7e | 1136 | |
84e90930 MB |
1137 | trace_snd_soc_dapm_done(card); |
1138 | ||
42aa3418 | 1139 | return 0; |
2b97eabc RP |
1140 | } |
1141 | ||
79fb9387 MB |
1142 | #ifdef CONFIG_DEBUG_FS |
1143 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1144 | { | |
1145 | file->private_data = inode->i_private; | |
1146 | return 0; | |
1147 | } | |
1148 | ||
1149 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1150 | char __user *user_buf, | |
1151 | size_t count, loff_t *ppos) | |
1152 | { | |
1153 | struct snd_soc_dapm_widget *w = file->private_data; | |
1154 | char *buf; | |
1155 | int in, out; | |
1156 | ssize_t ret; | |
1157 | struct snd_soc_dapm_path *p = NULL; | |
1158 | ||
1159 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1160 | if (!buf) | |
1161 | return -ENOMEM; | |
1162 | ||
1163 | in = is_connected_input_ep(w); | |
ce6120cc | 1164 | dapm_clear_walk(w->dapm); |
79fb9387 | 1165 | out = is_connected_output_ep(w); |
ce6120cc | 1166 | dapm_clear_walk(w->dapm); |
79fb9387 | 1167 | |
d033c36a | 1168 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1169 | w->name, w->power ? "On" : "Off", in, out); |
1170 | ||
d033c36a MB |
1171 | if (w->reg >= 0) |
1172 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1173 | " - R%d(0x%x) bit %d", | |
1174 | w->reg, w->reg, w->shift); | |
1175 | ||
1176 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1177 | ||
3eef08ba MB |
1178 | if (w->sname) |
1179 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1180 | w->sname, | |
1181 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1182 | |
1183 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1184 | if (p->connected && !p->connected(w, p->sink)) |
1185 | continue; | |
1186 | ||
79fb9387 MB |
1187 | if (p->connect) |
1188 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1189 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1190 | p->name ? p->name : "static", |
1191 | p->source->name); | |
1192 | } | |
1193 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1194 | if (p->connected && !p->connected(w, p->sink)) |
1195 | continue; | |
1196 | ||
79fb9387 MB |
1197 | if (p->connect) |
1198 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1199 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1200 | p->name ? p->name : "static", |
1201 | p->sink->name); | |
1202 | } | |
1203 | ||
1204 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1205 | ||
1206 | kfree(buf); | |
1207 | return ret; | |
1208 | } | |
1209 | ||
1210 | static const struct file_operations dapm_widget_power_fops = { | |
1211 | .open = dapm_widget_power_open_file, | |
1212 | .read = dapm_widget_power_read_file, | |
6038f373 | 1213 | .llseek = default_llseek, |
79fb9387 MB |
1214 | }; |
1215 | ||
ef49e4fa MB |
1216 | static int dapm_bias_open_file(struct inode *inode, struct file *file) |
1217 | { | |
1218 | file->private_data = inode->i_private; | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, | |
1223 | size_t count, loff_t *ppos) | |
1224 | { | |
1225 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1226 | char *level; | |
1227 | ||
1228 | switch (dapm->bias_level) { | |
1229 | case SND_SOC_BIAS_ON: | |
1230 | level = "On\n"; | |
1231 | break; | |
1232 | case SND_SOC_BIAS_PREPARE: | |
1233 | level = "Prepare\n"; | |
1234 | break; | |
1235 | case SND_SOC_BIAS_STANDBY: | |
1236 | level = "Standby\n"; | |
1237 | break; | |
1238 | case SND_SOC_BIAS_OFF: | |
1239 | level = "Off\n"; | |
1240 | break; | |
1241 | default: | |
1242 | BUG(); | |
1243 | level = "Unknown\n"; | |
1244 | break; | |
1245 | } | |
1246 | ||
1247 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1248 | strlen(level)); | |
1249 | } | |
1250 | ||
1251 | static const struct file_operations dapm_bias_fops = { | |
1252 | .open = dapm_bias_open_file, | |
1253 | .read = dapm_bias_read_file, | |
1254 | .llseek = default_llseek, | |
1255 | }; | |
1256 | ||
8eecaf62 LPC |
1257 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1258 | struct dentry *parent) | |
79fb9387 MB |
1259 | { |
1260 | struct snd_soc_dapm_widget *w; | |
1261 | struct dentry *d; | |
1262 | ||
8eecaf62 LPC |
1263 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1264 | ||
1265 | if (!dapm->debugfs_dapm) { | |
1266 | printk(KERN_WARNING | |
1267 | "Failed to create DAPM debugfs directory\n"); | |
79fb9387 | 1268 | return; |
8eecaf62 | 1269 | } |
79fb9387 | 1270 | |
ef49e4fa MB |
1271 | d = debugfs_create_file("bias_level", 0444, |
1272 | dapm->debugfs_dapm, dapm, | |
1273 | &dapm_bias_fops); | |
1274 | if (!d) | |
1275 | dev_warn(dapm->dev, | |
1276 | "ASoC: Failed to create bias level debugfs file\n"); | |
1277 | ||
97c866de JN |
1278 | list_for_each_entry(w, &dapm->card->widgets, list) { |
1279 | if (!w->name || w->dapm != dapm) | |
79fb9387 MB |
1280 | continue; |
1281 | ||
1282 | d = debugfs_create_file(w->name, 0444, | |
ce6120cc | 1283 | dapm->debugfs_dapm, w, |
79fb9387 MB |
1284 | &dapm_widget_power_fops); |
1285 | if (!d) | |
f7d41ae8 JN |
1286 | dev_warn(w->dapm->dev, |
1287 | "ASoC: Failed to create %s debugfs file\n", | |
1288 | w->name); | |
79fb9387 MB |
1289 | } |
1290 | } | |
1291 | #else | |
8eecaf62 LPC |
1292 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1293 | struct dentry *parent) | |
79fb9387 MB |
1294 | { |
1295 | } | |
1296 | #endif | |
1297 | ||
2b97eabc | 1298 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1299 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1300 | struct snd_kcontrol *kcontrol, int change, |
1301 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1302 | { |
1303 | struct snd_soc_dapm_path *path; | |
1304 | int found = 0; | |
1305 | ||
eff317d0 | 1306 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1307 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1308 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1309 | return -ENODEV; |
1310 | ||
3a65577d | 1311 | if (!change) |
2b97eabc RP |
1312 | return 0; |
1313 | ||
1314 | /* find dapm widget path assoc with kcontrol */ | |
8ddab3f5 | 1315 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1316 | if (path->kcontrol != kcontrol) |
1317 | continue; | |
1318 | ||
cb01e2b9 | 1319 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1320 | continue; |
1321 | ||
1322 | found = 1; | |
1323 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1324 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1325 | path->connect = 1; /* new connection */ |
1326 | else | |
1327 | path->connect = 0; /* old connection must be powered down */ | |
1328 | } | |
1329 | ||
b91b8fa0 | 1330 | if (found) |
ce6120cc | 1331 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1332 | |
1333 | return 0; | |
1334 | } | |
2b97eabc | 1335 | |
1b075e3f | 1336 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1337 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1338 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1339 | { |
1340 | struct snd_soc_dapm_path *path; | |
1341 | int found = 0; | |
1342 | ||
1b075e3f | 1343 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1344 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1345 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1346 | return -ENODEV; |
1347 | ||
2b97eabc | 1348 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1349 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1350 | if (path->kcontrol != kcontrol) |
1351 | continue; | |
1352 | ||
1353 | /* found, now check type */ | |
1354 | found = 1; | |
283375ce | 1355 | path->connect = connect; |
2b97eabc RP |
1356 | break; |
1357 | } | |
1358 | ||
b91b8fa0 | 1359 | if (found) |
ce6120cc | 1360 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1361 | |
1362 | return 0; | |
1363 | } | |
2b97eabc RP |
1364 | |
1365 | /* show dapm widget status in sys fs */ | |
1366 | static ssize_t dapm_widget_show(struct device *dev, | |
1367 | struct device_attribute *attr, char *buf) | |
1368 | { | |
f0fba2ad LG |
1369 | struct snd_soc_pcm_runtime *rtd = |
1370 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1371 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1372 | struct snd_soc_dapm_widget *w; |
1373 | int count = 0; | |
1374 | char *state = "not set"; | |
1375 | ||
97c866de JN |
1376 | list_for_each_entry(w, &codec->card->widgets, list) { |
1377 | if (w->dapm != &codec->dapm) | |
1378 | continue; | |
2b97eabc RP |
1379 | |
1380 | /* only display widgets that burnm power */ | |
1381 | switch (w->id) { | |
1382 | case snd_soc_dapm_hp: | |
1383 | case snd_soc_dapm_mic: | |
1384 | case snd_soc_dapm_spk: | |
1385 | case snd_soc_dapm_line: | |
1386 | case snd_soc_dapm_micbias: | |
1387 | case snd_soc_dapm_dac: | |
1388 | case snd_soc_dapm_adc: | |
1389 | case snd_soc_dapm_pga: | |
d88429a6 | 1390 | case snd_soc_dapm_out_drv: |
2b97eabc | 1391 | case snd_soc_dapm_mixer: |
ca9c1aae | 1392 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1393 | case snd_soc_dapm_supply: |
2b97eabc RP |
1394 | if (w->name) |
1395 | count += sprintf(buf + count, "%s: %s\n", | |
1396 | w->name, w->power ? "On":"Off"); | |
1397 | break; | |
1398 | default: | |
1399 | break; | |
1400 | } | |
1401 | } | |
1402 | ||
ce6120cc | 1403 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1404 | case SND_SOC_BIAS_ON: |
1405 | state = "On"; | |
2b97eabc | 1406 | break; |
0be9898a MB |
1407 | case SND_SOC_BIAS_PREPARE: |
1408 | state = "Prepare"; | |
2b97eabc | 1409 | break; |
0be9898a MB |
1410 | case SND_SOC_BIAS_STANDBY: |
1411 | state = "Standby"; | |
2b97eabc | 1412 | break; |
0be9898a MB |
1413 | case SND_SOC_BIAS_OFF: |
1414 | state = "Off"; | |
2b97eabc RP |
1415 | break; |
1416 | } | |
1417 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1418 | ||
1419 | return count; | |
1420 | } | |
1421 | ||
1422 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1423 | ||
1424 | int snd_soc_dapm_sys_add(struct device *dev) | |
1425 | { | |
12ef193d | 1426 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1427 | } |
1428 | ||
1429 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1430 | { | |
aef90843 | 1431 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1432 | } |
1433 | ||
1434 | /* free all dapm widgets and resources */ | |
ce6120cc | 1435 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1436 | { |
1437 | struct snd_soc_dapm_widget *w, *next_w; | |
1438 | struct snd_soc_dapm_path *p, *next_p; | |
1439 | ||
97c866de JN |
1440 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1441 | if (w->dapm != dapm) | |
1442 | continue; | |
2b97eabc | 1443 | list_del(&w->list); |
8ddab3f5 JN |
1444 | /* |
1445 | * remove source and sink paths associated to this widget. | |
1446 | * While removing the path, remove reference to it from both | |
1447 | * source and sink widgets so that path is removed only once. | |
1448 | */ | |
1449 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1450 | list_del(&p->list_sink); | |
1451 | list_del(&p->list_source); | |
1452 | list_del(&p->list); | |
1453 | kfree(p->long_name); | |
1454 | kfree(p); | |
1455 | } | |
1456 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1457 | list_del(&p->list_sink); | |
1458 | list_del(&p->list_source); | |
1459 | list_del(&p->list); | |
1460 | kfree(p->long_name); | |
1461 | kfree(p); | |
1462 | } | |
ead9b919 | 1463 | kfree(w->name); |
2b97eabc RP |
1464 | kfree(w); |
1465 | } | |
2b97eabc RP |
1466 | } |
1467 | ||
91a5fca4 LPC |
1468 | static struct snd_soc_dapm_widget *dapm_find_widget( |
1469 | struct snd_soc_dapm_context *dapm, const char *pin, | |
1470 | bool search_other_contexts) | |
a5302181 LG |
1471 | { |
1472 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 1473 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 1474 | |
97c866de | 1475 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 1476 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
1477 | if (w->dapm == dapm) |
1478 | return w; | |
1479 | else | |
1480 | fallback = w; | |
a5302181 LG |
1481 | } |
1482 | } | |
1483 | ||
91a5fca4 LPC |
1484 | if (search_other_contexts) |
1485 | return fallback; | |
1486 | ||
1487 | return NULL; | |
1488 | } | |
1489 | ||
1490 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
1491 | const char *pin, int status) | |
1492 | { | |
1493 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
1494 | ||
1495 | if (!w) { | |
1496 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
1497 | return -EINVAL; | |
0d86733c MB |
1498 | } |
1499 | ||
91a5fca4 LPC |
1500 | w->connected = status; |
1501 | if (status == 0) | |
1502 | w->force = 0; | |
1503 | ||
1504 | return 0; | |
a5302181 LG |
1505 | } |
1506 | ||
2b97eabc | 1507 | /** |
a5302181 | 1508 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1509 | * @dapm: DAPM context |
2b97eabc RP |
1510 | * |
1511 | * Walks all dapm audio paths and powers widgets according to their | |
1512 | * stream or path usage. | |
1513 | * | |
1514 | * Returns 0 for success. | |
1515 | */ | |
ce6120cc | 1516 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1517 | { |
ce6120cc | 1518 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1519 | } |
a5302181 | 1520 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1521 | |
ce6120cc | 1522 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1523 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1524 | { |
1525 | struct snd_soc_dapm_path *path; | |
1526 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 1527 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 1528 | const char *sink; |
215edda3 | 1529 | const char *control = route->control; |
ead9b919 JN |
1530 | const char *source; |
1531 | char prefixed_sink[80]; | |
1532 | char prefixed_source[80]; | |
2b97eabc RP |
1533 | int ret = 0; |
1534 | ||
88e8b9a8 | 1535 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
1536 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
1537 | dapm->codec->name_prefix, route->sink); | |
1538 | sink = prefixed_sink; | |
1539 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1540 | dapm->codec->name_prefix, route->source); | |
1541 | source = prefixed_source; | |
1542 | } else { | |
1543 | sink = route->sink; | |
1544 | source = route->source; | |
1545 | } | |
1546 | ||
97c866de JN |
1547 | /* |
1548 | * find src and dest widgets over all widgets but favor a widget from | |
1549 | * current DAPM context | |
1550 | */ | |
1551 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 1552 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
1553 | wtsink = w; |
1554 | if (w->dapm == dapm) | |
1555 | wsink = w; | |
2b97eabc RP |
1556 | continue; |
1557 | } | |
1558 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
1559 | wtsource = w; |
1560 | if (w->dapm == dapm) | |
1561 | wsource = w; | |
2b97eabc RP |
1562 | } |
1563 | } | |
97c866de JN |
1564 | /* use widget from another DAPM context if not found from this */ |
1565 | if (!wsink) | |
1566 | wsink = wtsink; | |
1567 | if (!wsource) | |
1568 | wsource = wtsource; | |
2b97eabc RP |
1569 | |
1570 | if (wsource == NULL || wsink == NULL) | |
1571 | return -ENODEV; | |
1572 | ||
1573 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1574 | if (!path) | |
1575 | return -ENOMEM; | |
1576 | ||
1577 | path->source = wsource; | |
1578 | path->sink = wsink; | |
215edda3 | 1579 | path->connected = route->connected; |
2b97eabc RP |
1580 | INIT_LIST_HEAD(&path->list); |
1581 | INIT_LIST_HEAD(&path->list_source); | |
1582 | INIT_LIST_HEAD(&path->list_sink); | |
1583 | ||
1584 | /* check for external widgets */ | |
1585 | if (wsink->id == snd_soc_dapm_input) { | |
1586 | if (wsource->id == snd_soc_dapm_micbias || | |
1587 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1588 | wsource->id == snd_soc_dapm_line || |
1589 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1590 | wsink->ext = 1; |
1591 | } | |
1592 | if (wsource->id == snd_soc_dapm_output) { | |
1593 | if (wsink->id == snd_soc_dapm_spk || | |
1594 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1595 | wsink->id == snd_soc_dapm_line || |
1596 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1597 | wsource->ext = 1; |
1598 | } | |
1599 | ||
1600 | /* connect static paths */ | |
1601 | if (control == NULL) { | |
8ddab3f5 | 1602 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1603 | list_add(&path->list_sink, &wsink->sources); |
1604 | list_add(&path->list_source, &wsource->sinks); | |
1605 | path->connect = 1; | |
1606 | return 0; | |
1607 | } | |
1608 | ||
1609 | /* connect dynamic paths */ | |
dc2bea61 | 1610 | switch (wsink->id) { |
2b97eabc RP |
1611 | case snd_soc_dapm_adc: |
1612 | case snd_soc_dapm_dac: | |
1613 | case snd_soc_dapm_pga: | |
d88429a6 | 1614 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
1615 | case snd_soc_dapm_input: |
1616 | case snd_soc_dapm_output: | |
1617 | case snd_soc_dapm_micbias: | |
1618 | case snd_soc_dapm_vmid: | |
1619 | case snd_soc_dapm_pre: | |
1620 | case snd_soc_dapm_post: | |
246d0a17 | 1621 | case snd_soc_dapm_supply: |
010ff262 MB |
1622 | case snd_soc_dapm_aif_in: |
1623 | case snd_soc_dapm_aif_out: | |
8ddab3f5 | 1624 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1625 | list_add(&path->list_sink, &wsink->sources); |
1626 | list_add(&path->list_source, &wsource->sinks); | |
1627 | path->connect = 1; | |
1628 | return 0; | |
1629 | case snd_soc_dapm_mux: | |
24ff33ac | 1630 | case snd_soc_dapm_virt_mux: |
74155556 | 1631 | case snd_soc_dapm_value_mux: |
ce6120cc | 1632 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
2b97eabc RP |
1633 | &wsink->kcontrols[0]); |
1634 | if (ret != 0) | |
1635 | goto err; | |
1636 | break; | |
1637 | case snd_soc_dapm_switch: | |
1638 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1639 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1640 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1641 | if (ret != 0) |
1642 | goto err; | |
1643 | break; | |
1644 | case snd_soc_dapm_hp: | |
1645 | case snd_soc_dapm_mic: | |
1646 | case snd_soc_dapm_line: | |
1647 | case snd_soc_dapm_spk: | |
8ddab3f5 | 1648 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1649 | list_add(&path->list_sink, &wsink->sources); |
1650 | list_add(&path->list_source, &wsource->sinks); | |
1651 | path->connect = 0; | |
1652 | return 0; | |
1653 | } | |
1654 | return 0; | |
1655 | ||
1656 | err: | |
f7d41ae8 JN |
1657 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1658 | source, control, sink); | |
2b97eabc RP |
1659 | kfree(path); |
1660 | return ret; | |
1661 | } | |
105f1c28 | 1662 | |
105f1c28 MB |
1663 | /** |
1664 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1665 | * @dapm: DAPM context |
105f1c28 MB |
1666 | * @route: audio routes |
1667 | * @num: number of routes | |
1668 | * | |
1669 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1670 | * the widget receiving the audio signal, whilst the source is the sender | |
1671 | * of the audio signal. | |
1672 | * | |
1673 | * Returns 0 for success else error. On error all resources can be freed | |
1674 | * with a call to snd_soc_card_free(). | |
1675 | */ | |
ce6120cc | 1676 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1677 | const struct snd_soc_dapm_route *route, int num) |
1678 | { | |
1679 | int i, ret; | |
1680 | ||
1681 | for (i = 0; i < num; i++) { | |
ce6120cc | 1682 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1683 | if (ret < 0) { |
f7d41ae8 JN |
1684 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1685 | route->source, route->sink); | |
105f1c28 MB |
1686 | return ret; |
1687 | } | |
1688 | route++; | |
1689 | } | |
1690 | ||
1691 | return 0; | |
1692 | } | |
1693 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1694 | ||
2b97eabc RP |
1695 | /** |
1696 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 1697 | * @dapm: DAPM context |
2b97eabc RP |
1698 | * |
1699 | * Checks the codec for any new dapm widgets and creates them if found. | |
1700 | * | |
1701 | * Returns 0 for success. | |
1702 | */ | |
ce6120cc | 1703 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1704 | { |
1705 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 1706 | unsigned int val; |
2b97eabc | 1707 | |
97c866de | 1708 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
1709 | { |
1710 | if (w->new) | |
1711 | continue; | |
1712 | ||
1713 | switch(w->id) { | |
1714 | case snd_soc_dapm_switch: | |
1715 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1716 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 1717 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1718 | dapm_new_mixer(dapm, w); |
2b97eabc RP |
1719 | break; |
1720 | case snd_soc_dapm_mux: | |
24ff33ac | 1721 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 1722 | case snd_soc_dapm_value_mux: |
b75576d7 | 1723 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1724 | dapm_new_mux(dapm, w); |
2b97eabc RP |
1725 | break; |
1726 | case snd_soc_dapm_adc: | |
010ff262 | 1727 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
1728 | w->power_check = dapm_adc_check_power; |
1729 | break; | |
2b97eabc | 1730 | case snd_soc_dapm_dac: |
010ff262 | 1731 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
1732 | w->power_check = dapm_dac_check_power; |
1733 | break; | |
2b97eabc | 1734 | case snd_soc_dapm_pga: |
d88429a6 | 1735 | case snd_soc_dapm_out_drv: |
b75576d7 | 1736 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1737 | dapm_new_pga(dapm, w); |
2b97eabc RP |
1738 | break; |
1739 | case snd_soc_dapm_input: | |
1740 | case snd_soc_dapm_output: | |
1741 | case snd_soc_dapm_micbias: | |
1742 | case snd_soc_dapm_spk: | |
1743 | case snd_soc_dapm_hp: | |
1744 | case snd_soc_dapm_mic: | |
1745 | case snd_soc_dapm_line: | |
b75576d7 MB |
1746 | w->power_check = dapm_generic_check_power; |
1747 | break; | |
246d0a17 MB |
1748 | case snd_soc_dapm_supply: |
1749 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
1750 | case snd_soc_dapm_vmid: |
1751 | case snd_soc_dapm_pre: | |
1752 | case snd_soc_dapm_post: | |
1753 | break; | |
1754 | } | |
b66a70d5 MB |
1755 | |
1756 | /* Read the initial power state from the device */ | |
1757 | if (w->reg >= 0) { | |
1758 | val = snd_soc_read(w->codec, w->reg); | |
1759 | val &= 1 << w->shift; | |
1760 | if (w->invert) | |
1761 | val = !val; | |
1762 | ||
1763 | if (val) | |
1764 | w->power = 1; | |
1765 | } | |
1766 | ||
2b97eabc RP |
1767 | w->new = 1; |
1768 | } | |
1769 | ||
ce6120cc | 1770 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1771 | return 0; |
1772 | } | |
1773 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
1774 | ||
1775 | /** | |
1776 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
1777 | * @kcontrol: mixer control | |
ac11a2b3 | 1778 | * @ucontrol: control element information |
2b97eabc RP |
1779 | * |
1780 | * Callback to get the value of a dapm mixer control. | |
1781 | * | |
1782 | * Returns 0 for success. | |
1783 | */ | |
1784 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
1785 | struct snd_ctl_elem_value *ucontrol) | |
1786 | { | |
1787 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1788 | struct soc_mixer_control *mc = |
1789 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1790 | unsigned int reg = mc->reg; |
1791 | unsigned int shift = mc->shift; | |
1792 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1793 | int max = mc->max; |
815ecf8d JS |
1794 | unsigned int invert = mc->invert; |
1795 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 1796 | |
2b97eabc RP |
1797 | ucontrol->value.integer.value[0] = |
1798 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
1799 | if (shift != rshift) | |
1800 | ucontrol->value.integer.value[1] = | |
1801 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
1802 | if (invert) { | |
1803 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1804 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
1805 | if (shift != rshift) |
1806 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1807 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
1808 | } |
1809 | ||
1810 | return 0; | |
1811 | } | |
1812 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
1813 | ||
1814 | /** | |
1815 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
1816 | * @kcontrol: mixer control | |
ac11a2b3 | 1817 | * @ucontrol: control element information |
2b97eabc RP |
1818 | * |
1819 | * Callback to set the value of a dapm mixer control. | |
1820 | * | |
1821 | * Returns 0 for success. | |
1822 | */ | |
1823 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
1824 | struct snd_ctl_elem_value *ucontrol) | |
1825 | { | |
1826 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1827 | struct soc_mixer_control *mc = |
1828 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1829 | unsigned int reg = mc->reg; |
1830 | unsigned int shift = mc->shift; | |
4eaa9819 | 1831 | int max = mc->max; |
815ecf8d JS |
1832 | unsigned int mask = (1 << fls(max)) - 1; |
1833 | unsigned int invert = mc->invert; | |
e9cf7049 | 1834 | unsigned int val; |
97404f2e MB |
1835 | int connect, change; |
1836 | struct snd_soc_dapm_update update; | |
2b97eabc RP |
1837 | |
1838 | val = (ucontrol->value.integer.value[0] & mask); | |
1839 | ||
1840 | if (invert) | |
a7a4ac86 | 1841 | val = max - val; |
e9cf7049 | 1842 | mask = mask << shift; |
2b97eabc | 1843 | val = val << shift; |
2b97eabc RP |
1844 | |
1845 | mutex_lock(&widget->codec->mutex); | |
1846 | widget->value = val; | |
1847 | ||
e9cf7049 | 1848 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 1849 | if (change) { |
283375ce MB |
1850 | if (val) |
1851 | /* new connection */ | |
1852 | connect = invert ? 0:1; | |
1853 | else | |
1854 | /* old connection must be powered down */ | |
1855 | connect = invert ? 1:0; | |
1856 | ||
97404f2e MB |
1857 | update.kcontrol = kcontrol; |
1858 | update.widget = widget; | |
1859 | update.reg = reg; | |
1860 | update.mask = mask; | |
1861 | update.val = val; | |
1862 | widget->dapm->update = &update; | |
1863 | ||
283375ce | 1864 | dapm_mixer_update_power(widget, kcontrol, connect); |
97404f2e MB |
1865 | |
1866 | widget->dapm->update = NULL; | |
283375ce MB |
1867 | } |
1868 | ||
2b97eabc | 1869 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 1870 | return 0; |
2b97eabc RP |
1871 | } |
1872 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
1873 | ||
1874 | /** | |
1875 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
1876 | * @kcontrol: mixer control | |
ac11a2b3 | 1877 | * @ucontrol: control element information |
2b97eabc RP |
1878 | * |
1879 | * Callback to get the value of a dapm enumerated double mixer control. | |
1880 | * | |
1881 | * Returns 0 for success. | |
1882 | */ | |
1883 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
1884 | struct snd_ctl_elem_value *ucontrol) | |
1885 | { | |
1886 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1887 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1888 | unsigned int val, bitmask; |
2b97eabc | 1889 | |
f8ba0b7b | 1890 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
1891 | ; |
1892 | val = snd_soc_read(widget->codec, e->reg); | |
1893 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
1894 | if (e->shift_l != e->shift_r) | |
1895 | ucontrol->value.enumerated.item[1] = | |
1896 | (val >> e->shift_r) & (bitmask - 1); | |
1897 | ||
1898 | return 0; | |
1899 | } | |
1900 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
1901 | ||
1902 | /** | |
1903 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
1904 | * @kcontrol: mixer control | |
ac11a2b3 | 1905 | * @ucontrol: control element information |
2b97eabc RP |
1906 | * |
1907 | * Callback to set the value of a dapm enumerated double mixer control. | |
1908 | * | |
1909 | * Returns 0 for success. | |
1910 | */ | |
1911 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
1912 | struct snd_ctl_elem_value *ucontrol) | |
1913 | { | |
1914 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1915 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
3a65577d | 1916 | unsigned int val, mux, change; |
46f5822f | 1917 | unsigned int mask, bitmask; |
97404f2e | 1918 | struct snd_soc_dapm_update update; |
2b97eabc | 1919 | |
f8ba0b7b | 1920 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 1921 | ; |
f8ba0b7b | 1922 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
1923 | return -EINVAL; |
1924 | mux = ucontrol->value.enumerated.item[0]; | |
1925 | val = mux << e->shift_l; | |
1926 | mask = (bitmask - 1) << e->shift_l; | |
1927 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1928 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
1929 | return -EINVAL; |
1930 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1931 | mask |= (bitmask - 1) << e->shift_r; | |
1932 | } | |
1933 | ||
1934 | mutex_lock(&widget->codec->mutex); | |
1935 | widget->value = val; | |
3a65577d | 1936 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1642e3d4 | 1937 | |
97404f2e MB |
1938 | update.kcontrol = kcontrol; |
1939 | update.widget = widget; | |
1940 | update.reg = e->reg; | |
1941 | update.mask = mask; | |
1942 | update.val = val; | |
1943 | widget->dapm->update = &update; | |
1642e3d4 | 1944 | |
97404f2e | 1945 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 1946 | |
97404f2e | 1947 | widget->dapm->update = NULL; |
2b97eabc | 1948 | |
2b97eabc | 1949 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 1950 | return change; |
2b97eabc RP |
1951 | } |
1952 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
1953 | ||
d2b247a8 MB |
1954 | /** |
1955 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
1956 | * @kcontrol: mixer control | |
1957 | * @ucontrol: control element information | |
1958 | * | |
1959 | * Returns 0 for success. | |
1960 | */ | |
1961 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
1962 | struct snd_ctl_elem_value *ucontrol) | |
1963 | { | |
1964 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1965 | ||
1966 | ucontrol->value.enumerated.item[0] = widget->value; | |
1967 | ||
1968 | return 0; | |
1969 | } | |
1970 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
1971 | ||
1972 | /** | |
1973 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
1974 | * @kcontrol: mixer control | |
1975 | * @ucontrol: control element information | |
1976 | * | |
1977 | * Returns 0 for success. | |
1978 | */ | |
1979 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
1980 | struct snd_ctl_elem_value *ucontrol) | |
1981 | { | |
1982 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1983 | struct soc_enum *e = | |
1984 | (struct soc_enum *)kcontrol->private_value; | |
1985 | int change; | |
1986 | int ret = 0; | |
1987 | ||
1988 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
1989 | return -EINVAL; | |
1990 | ||
1991 | mutex_lock(&widget->codec->mutex); | |
1992 | ||
1993 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
1994 | widget->value = ucontrol->value.enumerated.item[0]; | |
1995 | dapm_mux_update_power(widget, kcontrol, change, widget->value, e); | |
1996 | ||
1997 | mutex_unlock(&widget->codec->mutex); | |
1998 | return ret; | |
1999 | } | |
2000 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2001 | ||
2e72f8e3 PU |
2002 | /** |
2003 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2004 | * callback | |
2005 | * @kcontrol: mixer control | |
2006 | * @ucontrol: control element information | |
2007 | * | |
2008 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2009 | * | |
2010 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2011 | * used for handling bitfield coded enumeration for example. | |
2012 | * | |
2013 | * Returns 0 for success. | |
2014 | */ | |
2015 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2016 | struct snd_ctl_elem_value *ucontrol) | |
2017 | { | |
2018 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 2019 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2020 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2021 | |
2022 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2023 | val = (reg_val >> e->shift_l) & e->mask; | |
2024 | for (mux = 0; mux < e->max; mux++) { | |
2025 | if (val == e->values[mux]) | |
2026 | break; | |
2027 | } | |
2028 | ucontrol->value.enumerated.item[0] = mux; | |
2029 | if (e->shift_l != e->shift_r) { | |
2030 | val = (reg_val >> e->shift_r) & e->mask; | |
2031 | for (mux = 0; mux < e->max; mux++) { | |
2032 | if (val == e->values[mux]) | |
2033 | break; | |
2034 | } | |
2035 | ucontrol->value.enumerated.item[1] = mux; | |
2036 | } | |
2037 | ||
2038 | return 0; | |
2039 | } | |
2040 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2041 | ||
2042 | /** | |
2043 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2044 | * callback | |
2045 | * @kcontrol: mixer control | |
2046 | * @ucontrol: control element information | |
2047 | * | |
2048 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2049 | * | |
2050 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2051 | * used for handling bitfield coded enumeration for example. | |
2052 | * | |
2053 | * Returns 0 for success. | |
2054 | */ | |
2055 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2056 | struct snd_ctl_elem_value *ucontrol) | |
2057 | { | |
2058 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 2059 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2060 | unsigned int val, mux, change; |
46f5822f | 2061 | unsigned int mask; |
97404f2e | 2062 | struct snd_soc_dapm_update update; |
2e72f8e3 PU |
2063 | |
2064 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2065 | return -EINVAL; | |
2066 | mux = ucontrol->value.enumerated.item[0]; | |
2067 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2068 | mask = e->mask << e->shift_l; | |
2069 | if (e->shift_l != e->shift_r) { | |
2070 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2071 | return -EINVAL; | |
2072 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2073 | mask |= e->mask << e->shift_r; | |
2074 | } | |
2075 | ||
2076 | mutex_lock(&widget->codec->mutex); | |
2077 | widget->value = val; | |
3a65577d | 2078 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1642e3d4 | 2079 | |
97404f2e MB |
2080 | update.kcontrol = kcontrol; |
2081 | update.widget = widget; | |
2082 | update.reg = e->reg; | |
2083 | update.mask = mask; | |
2084 | update.val = val; | |
2085 | widget->dapm->update = &update; | |
1642e3d4 | 2086 | |
97404f2e | 2087 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 2088 | |
97404f2e | 2089 | widget->dapm->update = NULL; |
2e72f8e3 | 2090 | |
2e72f8e3 | 2091 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 2092 | return change; |
2e72f8e3 PU |
2093 | } |
2094 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2095 | ||
8b37dbd2 MB |
2096 | /** |
2097 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2098 | * | |
2099 | * @kcontrol: mixer control | |
2100 | * @uinfo: control element information | |
2101 | * | |
2102 | * Callback to provide information about a pin switch control. | |
2103 | */ | |
2104 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2105 | struct snd_ctl_elem_info *uinfo) | |
2106 | { | |
2107 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2108 | uinfo->count = 1; | |
2109 | uinfo->value.integer.min = 0; | |
2110 | uinfo->value.integer.max = 1; | |
2111 | ||
2112 | return 0; | |
2113 | } | |
2114 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2115 | ||
2116 | /** | |
2117 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2118 | * | |
2119 | * @kcontrol: mixer control | |
2120 | * @ucontrol: Value | |
2121 | */ | |
2122 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2123 | struct snd_ctl_elem_value *ucontrol) | |
2124 | { | |
2125 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2126 | const char *pin = (const char *)kcontrol->private_value; | |
2127 | ||
2128 | mutex_lock(&codec->mutex); | |
2129 | ||
2130 | ucontrol->value.integer.value[0] = | |
ce6120cc | 2131 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
2132 | |
2133 | mutex_unlock(&codec->mutex); | |
2134 | ||
2135 | return 0; | |
2136 | } | |
2137 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2138 | ||
2139 | /** | |
2140 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2141 | * | |
2142 | * @kcontrol: mixer control | |
2143 | * @ucontrol: Value | |
2144 | */ | |
2145 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2146 | struct snd_ctl_elem_value *ucontrol) | |
2147 | { | |
2148 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2149 | const char *pin = (const char *)kcontrol->private_value; | |
2150 | ||
2151 | mutex_lock(&codec->mutex); | |
2152 | ||
2153 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 2154 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 2155 | else |
ce6120cc | 2156 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 2157 | |
ce6120cc | 2158 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
2159 | |
2160 | mutex_unlock(&codec->mutex); | |
2161 | ||
2162 | return 0; | |
2163 | } | |
2164 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2165 | ||
2b97eabc RP |
2166 | /** |
2167 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 2168 | * @dapm: DAPM context |
2b97eabc RP |
2169 | * @widget: widget template |
2170 | * | |
2171 | * Creates a new dapm control based upon the template. | |
2172 | * | |
2173 | * Returns 0 for success else error. | |
2174 | */ | |
ce6120cc | 2175 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
2176 | const struct snd_soc_dapm_widget *widget) |
2177 | { | |
2178 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2179 | size_t name_len; |
2b97eabc RP |
2180 | |
2181 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
2182 | return -ENOMEM; | |
2183 | ||
ead9b919 | 2184 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 2185 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2186 | name_len += 1 + strlen(dapm->codec->name_prefix); |
2187 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2188 | if (w->name == NULL) { | |
2189 | kfree(w); | |
2190 | return -ENOMEM; | |
2191 | } | |
88e8b9a8 | 2192 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2193 | snprintf(w->name, name_len, "%s %s", |
2194 | dapm->codec->name_prefix, widget->name); | |
2195 | else | |
2196 | snprintf(w->name, name_len, "%s", widget->name); | |
2197 | ||
97c866de | 2198 | dapm->n_widgets++; |
ce6120cc LG |
2199 | w->dapm = dapm; |
2200 | w->codec = dapm->codec; | |
2b97eabc RP |
2201 | INIT_LIST_HEAD(&w->sources); |
2202 | INIT_LIST_HEAD(&w->sinks); | |
2203 | INIT_LIST_HEAD(&w->list); | |
97c866de | 2204 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2205 | |
2206 | /* machine layer set ups unconnected pins and insertions */ | |
2207 | w->connected = 1; | |
2208 | return 0; | |
2209 | } | |
2210 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2211 | ||
4ba1327a MB |
2212 | /** |
2213 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2214 | * @dapm: DAPM context |
4ba1327a MB |
2215 | * @widget: widget array |
2216 | * @num: number of widgets | |
2217 | * | |
2218 | * Creates new DAPM controls based upon the templates. | |
2219 | * | |
2220 | * Returns 0 for success else error. | |
2221 | */ | |
ce6120cc | 2222 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2223 | const struct snd_soc_dapm_widget *widget, |
2224 | int num) | |
2225 | { | |
2226 | int i, ret; | |
2227 | ||
2228 | for (i = 0; i < num; i++) { | |
ce6120cc | 2229 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2230 | if (ret < 0) { |
f7d41ae8 JN |
2231 | dev_err(dapm->dev, |
2232 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2233 | widget->name, ret); | |
4ba1327a | 2234 | return ret; |
b8b33cb5 | 2235 | } |
4ba1327a MB |
2236 | widget++; |
2237 | } | |
2238 | return 0; | |
2239 | } | |
2240 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2241 | ||
ce6120cc | 2242 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2243 | const char *stream, int event) |
2b97eabc RP |
2244 | { |
2245 | struct snd_soc_dapm_widget *w; | |
2246 | ||
97c866de | 2247 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc | 2248 | { |
97c866de | 2249 | if (!w->sname || w->dapm != dapm) |
2b97eabc | 2250 | continue; |
f7d41ae8 JN |
2251 | dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
2252 | w->name, w->sname, stream, event); | |
2b97eabc RP |
2253 | if (strstr(w->sname, stream)) { |
2254 | switch(event) { | |
2255 | case SND_SOC_DAPM_STREAM_START: | |
2256 | w->active = 1; | |
2257 | break; | |
2258 | case SND_SOC_DAPM_STREAM_STOP: | |
2259 | w->active = 0; | |
2260 | break; | |
2261 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2262 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2263 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2264 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2265 | break; | |
2266 | } | |
2267 | } | |
2268 | } | |
2b97eabc | 2269 | |
ce6120cc LG |
2270 | dapm_power_widgets(dapm, event); |
2271 | } | |
2272 | ||
2273 | /** | |
2274 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2275 | * @rtd: PCM runtime data | |
2276 | * @stream: stream name | |
2277 | * @event: stream event | |
2278 | * | |
2279 | * Sends a stream event to the dapm core. The core then makes any | |
2280 | * necessary widget power changes. | |
2281 | * | |
2282 | * Returns 0 for success else error. | |
2283 | */ | |
2284 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2285 | const char *stream, int event) | |
2286 | { | |
2287 | struct snd_soc_codec *codec = rtd->codec; | |
2288 | ||
2289 | if (stream == NULL) | |
2290 | return 0; | |
2291 | ||
2292 | mutex_lock(&codec->mutex); | |
2293 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2294 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2295 | return 0; |
2296 | } | |
2b97eabc RP |
2297 | |
2298 | /** | |
a5302181 | 2299 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2300 | * @dapm: DAPM context |
a5302181 | 2301 | * @pin: pin name |
2b97eabc | 2302 | * |
74b8f955 | 2303 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2304 | * a valid audio route and active audio stream. |
2305 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2306 | * do any widget power switching. | |
2b97eabc | 2307 | */ |
ce6120cc | 2308 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2309 | { |
ce6120cc | 2310 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2311 | } |
2312 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2313 | |
da34183e MB |
2314 | /** |
2315 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2316 | * @dapm: DAPM context |
da34183e MB |
2317 | * @pin: pin name |
2318 | * | |
2319 | * Enables input/output pin regardless of any other state. This is | |
2320 | * intended for use with microphone bias supplies used in microphone | |
2321 | * jack detection. | |
2322 | * | |
2323 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2324 | * do any widget power switching. | |
2325 | */ | |
ce6120cc LG |
2326 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2327 | const char *pin) | |
da34183e | 2328 | { |
91a5fca4 | 2329 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 2330 | |
91a5fca4 LPC |
2331 | if (!w) { |
2332 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2333 | return -EINVAL; | |
0d86733c MB |
2334 | } |
2335 | ||
91a5fca4 LPC |
2336 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
2337 | w->connected = 1; | |
2338 | w->force = 1; | |
da34183e | 2339 | |
91a5fca4 | 2340 | return 0; |
da34183e MB |
2341 | } |
2342 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2343 | ||
a5302181 LG |
2344 | /** |
2345 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2346 | * @dapm: DAPM context |
a5302181 LG |
2347 | * @pin: pin name |
2348 | * | |
74b8f955 | 2349 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2350 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2351 | * do any widget power switching. | |
2352 | */ | |
ce6120cc LG |
2353 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2354 | const char *pin) | |
a5302181 | 2355 | { |
ce6120cc | 2356 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2357 | } |
a5302181 | 2358 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2359 | |
5817b52a MB |
2360 | /** |
2361 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2362 | * @dapm: DAPM context |
5817b52a MB |
2363 | * @pin: pin name |
2364 | * | |
2365 | * Marks the specified pin as being not connected, disabling it along | |
2366 | * any parent or child widgets. At present this is identical to | |
2367 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2368 | * additional things such as disabling controls which only affect | |
2369 | * paths through the pin. | |
2370 | * | |
2371 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2372 | * do any widget power switching. | |
2373 | */ | |
ce6120cc | 2374 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2375 | { |
ce6120cc | 2376 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2377 | } |
2378 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2379 | ||
eeec12bf | 2380 | /** |
a5302181 | 2381 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2382 | * @dapm: DAPM context |
a5302181 | 2383 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2384 | * |
a5302181 | 2385 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2386 | * |
a5302181 | 2387 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2388 | */ |
ce6120cc LG |
2389 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2390 | const char *pin) | |
eeec12bf | 2391 | { |
91a5fca4 | 2392 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 2393 | |
91a5fca4 LPC |
2394 | if (w) |
2395 | return w->connected; | |
a68b38ad | 2396 | |
eeec12bf GG |
2397 | return 0; |
2398 | } | |
a5302181 | 2399 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2400 | |
1547aba9 MB |
2401 | /** |
2402 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2403 | * @dapm: DAPM context |
1547aba9 MB |
2404 | * @pin: audio signal pin endpoint (or start point) |
2405 | * | |
2406 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2407 | * system is disabled a path between two endpoints flagged as ignoring | |
2408 | * suspend will not be disabled. The path must already be enabled via | |
2409 | * normal means at suspend time, it will not be turned on if it was not | |
2410 | * already enabled. | |
2411 | */ | |
ce6120cc LG |
2412 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2413 | const char *pin) | |
1547aba9 | 2414 | { |
91a5fca4 | 2415 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 2416 | |
91a5fca4 LPC |
2417 | if (!w) { |
2418 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2419 | return -EINVAL; | |
1547aba9 MB |
2420 | } |
2421 | ||
91a5fca4 LPC |
2422 | w->ignore_suspend = 1; |
2423 | ||
2424 | return 0; | |
1547aba9 MB |
2425 | } |
2426 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2427 | ||
2b97eabc RP |
2428 | /** |
2429 | * snd_soc_dapm_free - free dapm resources | |
f0fba2ad | 2430 | * @card: SoC device |
2b97eabc RP |
2431 | * |
2432 | * Free all dapm widgets and resources. | |
2433 | */ | |
ce6120cc | 2434 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2435 | { |
ce6120cc LG |
2436 | snd_soc_dapm_sys_remove(dapm->dev); |
2437 | dapm_free_widgets(dapm); | |
7be31be8 | 2438 | list_del(&dapm->list); |
2b97eabc RP |
2439 | } |
2440 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2441 | ||
ce6120cc | 2442 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2443 | { |
51737470 MB |
2444 | struct snd_soc_dapm_widget *w; |
2445 | LIST_HEAD(down_list); | |
2446 | int powerdown = 0; | |
2447 | ||
97c866de JN |
2448 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2449 | if (w->dapm != dapm) | |
2450 | continue; | |
51737470 | 2451 | if (w->power) { |
828a842f | 2452 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 2453 | w->power = 0; |
51737470 MB |
2454 | powerdown = 1; |
2455 | } | |
2456 | } | |
2457 | ||
2458 | /* If there were no widgets to power down we're already in | |
2459 | * standby. | |
2460 | */ | |
2461 | if (powerdown) { | |
ed5a4c47 | 2462 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE); |
828a842f | 2463 | dapm_seq_run(dapm, &down_list, 0, false); |
ed5a4c47 | 2464 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY); |
51737470 | 2465 | } |
f0fba2ad LG |
2466 | } |
2467 | ||
2468 | /* | |
2469 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2470 | */ | |
2471 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2472 | { | |
2473 | struct snd_soc_codec *codec; | |
2474 | ||
ce6120cc LG |
2475 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2476 | soc_dapm_shutdown_codec(&codec->dapm); | |
ed5a4c47 | 2477 | snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF); |
ce6120cc | 2478 | } |
51737470 MB |
2479 | } |
2480 | ||
2b97eabc | 2481 | /* Module information */ |
d331124d | 2482 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2483 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2484 | MODULE_LICENSE("GPL"); |