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Commit | Line | Data |
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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 | ||
325 | /* update dapm codec register bits */ | |
326 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) | |
327 | { | |
328 | int change, power; | |
46f5822f | 329 | unsigned int old, new; |
2b97eabc | 330 | struct snd_soc_codec *codec = widget->codec; |
ce6120cc | 331 | struct snd_soc_dapm_context *dapm = widget->dapm; |
3a45b867 | 332 | struct snd_soc_card *card = dapm->card; |
2b97eabc RP |
333 | |
334 | /* check for valid widgets */ | |
335 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || | |
336 | widget->id == snd_soc_dapm_output || | |
337 | widget->id == snd_soc_dapm_hp || | |
338 | widget->id == snd_soc_dapm_mic || | |
339 | widget->id == snd_soc_dapm_line || | |
340 | widget->id == snd_soc_dapm_spk) | |
341 | return 0; | |
342 | ||
343 | power = widget->power; | |
344 | if (widget->invert) | |
345 | power = (power ? 0:1); | |
346 | ||
347 | old = snd_soc_read(codec, widget->reg); | |
348 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); | |
349 | ||
350 | change = old != new; | |
351 | if (change) { | |
fd8d3bc0 JN |
352 | pop_dbg(dapm->dev, card->pop_time, |
353 | "pop test %s : %s in %d ms\n", | |
12ef193d | 354 | widget->name, widget->power ? "on" : "off", |
3a45b867 JN |
355 | card->pop_time); |
356 | pop_wait(card->pop_time); | |
69224719 | 357 | snd_soc_write(codec, widget->reg, new); |
2b97eabc | 358 | } |
f7d41ae8 JN |
359 | dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg, |
360 | old, new, change); | |
2b97eabc RP |
361 | return change; |
362 | } | |
363 | ||
2b97eabc | 364 | /* create new dapm mixer control */ |
ce6120cc | 365 | static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
366 | struct snd_soc_dapm_widget *w) |
367 | { | |
368 | int i, ret = 0; | |
219b93f5 | 369 | size_t name_len; |
2b97eabc | 370 | struct snd_soc_dapm_path *path; |
12ea2c78 | 371 | struct snd_card *card = dapm->card->snd_card; |
2b97eabc RP |
372 | |
373 | /* add kcontrol */ | |
374 | for (i = 0; i < w->num_kcontrols; i++) { | |
375 | ||
376 | /* match name */ | |
377 | list_for_each_entry(path, &w->sources, list_sink) { | |
378 | ||
379 | /* mixer/mux paths name must match control name */ | |
380 | if (path->name != (char*)w->kcontrols[i].name) | |
381 | continue; | |
382 | ||
ca9c1aae IM |
383 | /* add dapm control with long name. |
384 | * for dapm_mixer this is the concatenation of the | |
385 | * mixer and kcontrol name. | |
386 | * for dapm_mixer_named_ctl this is simply the | |
387 | * kcontrol name. | |
388 | */ | |
389 | name_len = strlen(w->kcontrols[i].name) + 1; | |
07495f3e | 390 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
391 | name_len += 1 + strlen(w->name); |
392 | ||
219b93f5 | 393 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 394 | |
2b97eabc RP |
395 | if (path->long_name == NULL) |
396 | return -ENOMEM; | |
397 | ||
ca9c1aae | 398 | switch (w->id) { |
ca9c1aae IM |
399 | default: |
400 | snprintf(path->long_name, name_len, "%s %s", | |
401 | w->name, w->kcontrols[i].name); | |
07495f3e | 402 | break; |
ca9c1aae IM |
403 | case snd_soc_dapm_mixer_named_ctl: |
404 | snprintf(path->long_name, name_len, "%s", | |
405 | w->kcontrols[i].name); | |
07495f3e | 406 | break; |
ca9c1aae IM |
407 | } |
408 | ||
219b93f5 MB |
409 | path->long_name[name_len - 1] = '\0'; |
410 | ||
2b97eabc RP |
411 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
412 | path->long_name); | |
ce6120cc | 413 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 414 | if (ret < 0) { |
f7d41ae8 JN |
415 | dev_err(dapm->dev, |
416 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
417 | path->long_name, ret); | |
2b97eabc RP |
418 | kfree(path->long_name); |
419 | path->long_name = NULL; | |
420 | return ret; | |
421 | } | |
422 | } | |
423 | } | |
424 | return ret; | |
425 | } | |
426 | ||
427 | /* create new dapm mux control */ | |
ce6120cc | 428 | static int dapm_new_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
429 | struct snd_soc_dapm_widget *w) |
430 | { | |
431 | struct snd_soc_dapm_path *path = NULL; | |
432 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 433 | struct snd_card *card = dapm->card->snd_card; |
2b97eabc RP |
434 | int ret = 0; |
435 | ||
436 | if (!w->num_kcontrols) { | |
f7d41ae8 | 437 | dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name); |
2b97eabc RP |
438 | return -EINVAL; |
439 | } | |
440 | ||
441 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); | |
ce6120cc LG |
442 | ret = snd_ctl_add(card, kcontrol); |
443 | ||
2b97eabc RP |
444 | if (ret < 0) |
445 | goto err; | |
446 | ||
447 | list_for_each_entry(path, &w->sources, list_sink) | |
448 | path->kcontrol = kcontrol; | |
449 | ||
450 | return ret; | |
451 | ||
452 | err: | |
f7d41ae8 | 453 | dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name); |
2b97eabc RP |
454 | return ret; |
455 | } | |
456 | ||
457 | /* create new dapm volume control */ | |
ce6120cc | 458 | static int dapm_new_pga(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
459 | struct snd_soc_dapm_widget *w) |
460 | { | |
a6c65736 | 461 | if (w->num_kcontrols) |
f7d41ae8 JN |
462 | dev_err(w->dapm->dev, |
463 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 464 | |
a6c65736 | 465 | return 0; |
2b97eabc RP |
466 | } |
467 | ||
468 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 469 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
470 | { |
471 | struct snd_soc_dapm_path *p; | |
472 | ||
8ddab3f5 | 473 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
474 | p->walked = 0; |
475 | } | |
476 | ||
9949788b MB |
477 | /* We implement power down on suspend by checking the power state of |
478 | * the ALSA card - when we are suspending the ALSA state for the card | |
479 | * is set to D3. | |
480 | */ | |
481 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
482 | { | |
12ea2c78 | 483 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 484 | |
f0fba2ad | 485 | switch (level) { |
9949788b MB |
486 | case SNDRV_CTL_POWER_D3hot: |
487 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 488 | if (widget->ignore_suspend) |
f7d41ae8 JN |
489 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
490 | widget->name); | |
1547aba9 | 491 | return widget->ignore_suspend; |
9949788b MB |
492 | default: |
493 | return 1; | |
494 | } | |
495 | } | |
496 | ||
2b97eabc RP |
497 | /* |
498 | * Recursively check for a completed path to an active or physically connected | |
499 | * output widget. Returns number of complete paths. | |
500 | */ | |
501 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
502 | { | |
503 | struct snd_soc_dapm_path *path; | |
504 | int con = 0; | |
505 | ||
246d0a17 MB |
506 | if (widget->id == snd_soc_dapm_supply) |
507 | return 0; | |
508 | ||
010ff262 MB |
509 | switch (widget->id) { |
510 | case snd_soc_dapm_adc: | |
511 | case snd_soc_dapm_aif_out: | |
512 | if (widget->active) | |
9949788b | 513 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
514 | default: |
515 | break; | |
516 | } | |
2b97eabc RP |
517 | |
518 | if (widget->connected) { | |
519 | /* connected pin ? */ | |
520 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 521 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
522 | |
523 | /* connected jack or spk ? */ | |
524 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 525 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 526 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
527 | } |
528 | ||
529 | list_for_each_entry(path, &widget->sinks, list_source) { | |
530 | if (path->walked) | |
531 | continue; | |
532 | ||
533 | if (path->sink && path->connect) { | |
534 | path->walked = 1; | |
535 | con += is_connected_output_ep(path->sink); | |
536 | } | |
537 | } | |
538 | ||
539 | return con; | |
540 | } | |
541 | ||
542 | /* | |
543 | * Recursively check for a completed path to an active or physically connected | |
544 | * input widget. Returns number of complete paths. | |
545 | */ | |
546 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
547 | { | |
548 | struct snd_soc_dapm_path *path; | |
549 | int con = 0; | |
550 | ||
246d0a17 MB |
551 | if (widget->id == snd_soc_dapm_supply) |
552 | return 0; | |
553 | ||
2b97eabc | 554 | /* active stream ? */ |
010ff262 MB |
555 | switch (widget->id) { |
556 | case snd_soc_dapm_dac: | |
557 | case snd_soc_dapm_aif_in: | |
558 | if (widget->active) | |
9949788b | 559 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
560 | default: |
561 | break; | |
562 | } | |
2b97eabc RP |
563 | |
564 | if (widget->connected) { | |
565 | /* connected pin ? */ | |
566 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 567 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
568 | |
569 | /* connected VMID/Bias for lower pops */ | |
570 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 571 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
572 | |
573 | /* connected jack ? */ | |
eaeae5d9 PU |
574 | if (widget->id == snd_soc_dapm_mic || |
575 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 576 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
577 | } |
578 | ||
579 | list_for_each_entry(path, &widget->sources, list_sink) { | |
580 | if (path->walked) | |
581 | continue; | |
582 | ||
583 | if (path->source && path->connect) { | |
584 | path->walked = 1; | |
585 | con += is_connected_input_ep(path->source); | |
586 | } | |
587 | } | |
588 | ||
589 | return con; | |
590 | } | |
591 | ||
e2be2ccf JN |
592 | /* |
593 | * Handler for generic register modifier widget. | |
594 | */ | |
595 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
596 | struct snd_kcontrol *kcontrol, int event) | |
597 | { | |
598 | unsigned int val; | |
599 | ||
600 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
601 | val = w->on_val; | |
602 | else | |
603 | val = w->off_val; | |
604 | ||
605 | snd_soc_update_bits(w->codec, -(w->reg + 1), | |
606 | w->mask << w->shift, val << w->shift); | |
607 | ||
608 | return 0; | |
609 | } | |
11589418 | 610 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 611 | |
025756ec MB |
612 | /* Standard power change method, used to apply power changes to most |
613 | * widgets. | |
614 | */ | |
615 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) | |
616 | { | |
617 | int ret; | |
618 | ||
619 | /* call any power change event handlers */ | |
620 | if (w->event) | |
f7d41ae8 | 621 | dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n", |
025756ec MB |
622 | w->power ? "on" : "off", |
623 | w->name, w->event_flags); | |
624 | ||
625 | /* power up pre event */ | |
626 | if (w->power && w->event && | |
627 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { | |
628 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); | |
629 | if (ret < 0) | |
630 | return ret; | |
631 | } | |
632 | ||
633 | /* power down pre event */ | |
634 | if (!w->power && w->event && | |
635 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { | |
636 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); | |
637 | if (ret < 0) | |
638 | return ret; | |
639 | } | |
640 | ||
025756ec MB |
641 | dapm_update_bits(w); |
642 | ||
025756ec MB |
643 | /* power up post event */ |
644 | if (w->power && w->event && | |
645 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { | |
646 | ret = w->event(w, | |
647 | NULL, SND_SOC_DAPM_POST_PMU); | |
648 | if (ret < 0) | |
649 | return ret; | |
650 | } | |
651 | ||
652 | /* power down post event */ | |
653 | if (!w->power && w->event && | |
654 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { | |
655 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); | |
656 | if (ret < 0) | |
657 | return ret; | |
658 | } | |
659 | ||
660 | return 0; | |
661 | } | |
662 | ||
cd0f2d47 MB |
663 | /* Generic check to see if a widget should be powered. |
664 | */ | |
665 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
666 | { | |
667 | int in, out; | |
668 | ||
669 | in = is_connected_input_ep(w); | |
ce6120cc | 670 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 671 | out = is_connected_output_ep(w); |
ce6120cc | 672 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
673 | return out != 0 && in != 0; |
674 | } | |
675 | ||
6ea31b9f MB |
676 | /* Check to see if an ADC has power */ |
677 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
678 | { | |
679 | int in; | |
680 | ||
681 | if (w->active) { | |
682 | in = is_connected_input_ep(w); | |
ce6120cc | 683 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
684 | return in != 0; |
685 | } else { | |
686 | return dapm_generic_check_power(w); | |
687 | } | |
688 | } | |
689 | ||
690 | /* Check to see if a DAC has power */ | |
691 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
692 | { | |
693 | int out; | |
694 | ||
695 | if (w->active) { | |
696 | out = is_connected_output_ep(w); | |
ce6120cc | 697 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
698 | return out != 0; |
699 | } else { | |
700 | return dapm_generic_check_power(w); | |
701 | } | |
702 | } | |
703 | ||
246d0a17 MB |
704 | /* Check to see if a power supply is needed */ |
705 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
706 | { | |
707 | struct snd_soc_dapm_path *path; | |
708 | int power = 0; | |
709 | ||
710 | /* Check if one of our outputs is connected */ | |
711 | list_for_each_entry(path, &w->sinks, list_source) { | |
215edda3 MB |
712 | if (path->connected && |
713 | !path->connected(path->source, path->sink)) | |
714 | continue; | |
715 | ||
3017358a MB |
716 | if (!path->sink) |
717 | continue; | |
718 | ||
719 | if (path->sink->force) { | |
720 | power = 1; | |
721 | break; | |
722 | } | |
723 | ||
724 | if (path->sink->power_check && | |
246d0a17 MB |
725 | path->sink->power_check(path->sink)) { |
726 | power = 1; | |
727 | break; | |
728 | } | |
729 | } | |
730 | ||
ce6120cc | 731 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
732 | |
733 | return power; | |
734 | } | |
735 | ||
38357ab2 MB |
736 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
737 | struct snd_soc_dapm_widget *b, | |
828a842f | 738 | bool power_up) |
42aa3418 | 739 | { |
828a842f MB |
740 | int *sort; |
741 | ||
742 | if (power_up) | |
743 | sort = dapm_up_seq; | |
744 | else | |
745 | sort = dapm_down_seq; | |
746 | ||
38357ab2 MB |
747 | if (sort[a->id] != sort[b->id]) |
748 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
749 | if (a->subseq != b->subseq) { |
750 | if (power_up) | |
751 | return a->subseq - b->subseq; | |
752 | else | |
753 | return b->subseq - a->subseq; | |
754 | } | |
b22ead2a MB |
755 | if (a->reg != b->reg) |
756 | return a->reg - b->reg; | |
84dab567 MB |
757 | if (a->dapm != b->dapm) |
758 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 759 | |
38357ab2 MB |
760 | return 0; |
761 | } | |
42aa3418 | 762 | |
38357ab2 MB |
763 | /* Insert a widget in order into a DAPM power sequence. */ |
764 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
765 | struct list_head *list, | |
828a842f | 766 | bool power_up) |
38357ab2 MB |
767 | { |
768 | struct snd_soc_dapm_widget *w; | |
769 | ||
770 | list_for_each_entry(w, list, power_list) | |
828a842f | 771 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
772 | list_add_tail(&new_widget->power_list, &w->power_list); |
773 | return; | |
774 | } | |
775 | ||
776 | list_add_tail(&new_widget->power_list, list); | |
777 | } | |
778 | ||
68f89ad8 MB |
779 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
780 | struct snd_soc_dapm_widget *w, int event) | |
781 | { | |
782 | struct snd_soc_card *card = dapm->card; | |
783 | const char *ev_name; | |
784 | int power, ret; | |
785 | ||
786 | switch (event) { | |
787 | case SND_SOC_DAPM_PRE_PMU: | |
788 | ev_name = "PRE_PMU"; | |
789 | power = 1; | |
790 | break; | |
791 | case SND_SOC_DAPM_POST_PMU: | |
792 | ev_name = "POST_PMU"; | |
793 | power = 1; | |
794 | break; | |
795 | case SND_SOC_DAPM_PRE_PMD: | |
796 | ev_name = "PRE_PMD"; | |
797 | power = 0; | |
798 | break; | |
799 | case SND_SOC_DAPM_POST_PMD: | |
800 | ev_name = "POST_PMD"; | |
801 | power = 0; | |
802 | break; | |
803 | default: | |
804 | BUG(); | |
805 | return; | |
806 | } | |
807 | ||
808 | if (w->power != power) | |
809 | return; | |
810 | ||
811 | if (w->event && (w->event_flags & event)) { | |
812 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
813 | w->name, ev_name); | |
84e90930 | 814 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 815 | ret = w->event(w, NULL, event); |
84e90930 | 816 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
817 | if (ret < 0) |
818 | pr_err("%s: %s event failed: %d\n", | |
819 | ev_name, w->name, ret); | |
820 | } | |
821 | } | |
822 | ||
b22ead2a | 823 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 824 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 825 | struct list_head *pending) |
163cac06 | 826 | { |
3a45b867 | 827 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
828 | struct snd_soc_dapm_widget *w; |
829 | int reg, power; | |
b22ead2a MB |
830 | unsigned int value = 0; |
831 | unsigned int mask = 0; | |
832 | unsigned int cur_mask; | |
833 | ||
834 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
835 | power_list)->reg; | |
836 | ||
837 | list_for_each_entry(w, pending, power_list) { | |
838 | cur_mask = 1 << w->shift; | |
839 | BUG_ON(reg != w->reg); | |
840 | ||
841 | if (w->invert) | |
842 | power = !w->power; | |
843 | else | |
844 | power = w->power; | |
845 | ||
846 | mask |= cur_mask; | |
847 | if (power) | |
848 | value |= cur_mask; | |
849 | ||
fd8d3bc0 | 850 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
851 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
852 | w->name, reg, value, mask); | |
81628103 | 853 | |
68f89ad8 MB |
854 | /* Check for events */ |
855 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
856 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
857 | } |
858 | ||
859 | if (reg >= 0) { | |
fd8d3bc0 | 860 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 861 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
862 | value, mask, reg, card->pop_time); |
863 | pop_wait(card->pop_time); | |
ce6120cc | 864 | snd_soc_update_bits(dapm->codec, reg, mask, value); |
b22ead2a MB |
865 | } |
866 | ||
81628103 | 867 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
868 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
869 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 870 | } |
b22ead2a | 871 | } |
42aa3418 | 872 | |
b22ead2a MB |
873 | /* Apply a DAPM power sequence. |
874 | * | |
875 | * We walk over a pre-sorted list of widgets to apply power to. In | |
876 | * order to minimise the number of writes to the device required | |
877 | * multiple widgets will be updated in a single write where possible. | |
878 | * Currently anything that requires more than a single write is not | |
879 | * handled. | |
880 | */ | |
ce6120cc | 881 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 882 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
883 | { |
884 | struct snd_soc_dapm_widget *w, *n; | |
885 | LIST_HEAD(pending); | |
886 | int cur_sort = -1; | |
20e4859d | 887 | int cur_subseq = -1; |
b22ead2a | 888 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 889 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 890 | int ret, i; |
828a842f MB |
891 | int *sort; |
892 | ||
893 | if (power_up) | |
894 | sort = dapm_up_seq; | |
895 | else | |
896 | sort = dapm_down_seq; | |
163cac06 | 897 | |
b22ead2a MB |
898 | list_for_each_entry_safe(w, n, list, power_list) { |
899 | ret = 0; | |
900 | ||
901 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 902 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 903 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 904 | if (!list_empty(&pending)) |
7be31be8 | 905 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 906 | |
474b62d6 MB |
907 | if (cur_dapm && cur_dapm->seq_notifier) { |
908 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
909 | if (sort[i] == cur_sort) | |
910 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
911 | i, |
912 | cur_subseq); | |
474b62d6 MB |
913 | } |
914 | ||
b22ead2a MB |
915 | INIT_LIST_HEAD(&pending); |
916 | cur_sort = -1; | |
20e4859d | 917 | cur_subseq = -1; |
b22ead2a | 918 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 919 | cur_dapm = NULL; |
b22ead2a MB |
920 | } |
921 | ||
163cac06 MB |
922 | switch (w->id) { |
923 | case snd_soc_dapm_pre: | |
924 | if (!w->event) | |
b22ead2a MB |
925 | list_for_each_entry_safe_continue(w, n, list, |
926 | power_list); | |
163cac06 | 927 | |
b22ead2a | 928 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
929 | ret = w->event(w, |
930 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 931 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
932 | ret = w->event(w, |
933 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
934 | break; |
935 | ||
936 | case snd_soc_dapm_post: | |
937 | if (!w->event) | |
b22ead2a MB |
938 | list_for_each_entry_safe_continue(w, n, list, |
939 | power_list); | |
163cac06 | 940 | |
b22ead2a | 941 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
942 | ret = w->event(w, |
943 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 944 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
945 | ret = w->event(w, |
946 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
947 | break; |
948 | ||
b22ead2a MB |
949 | case snd_soc_dapm_input: |
950 | case snd_soc_dapm_output: | |
951 | case snd_soc_dapm_hp: | |
952 | case snd_soc_dapm_mic: | |
953 | case snd_soc_dapm_line: | |
954 | case snd_soc_dapm_spk: | |
955 | /* No register support currently */ | |
163cac06 | 956 | ret = dapm_generic_apply_power(w); |
163cac06 | 957 | break; |
b22ead2a MB |
958 | |
959 | default: | |
81628103 MB |
960 | /* Queue it up for application */ |
961 | cur_sort = sort[w->id]; | |
20e4859d | 962 | cur_subseq = w->subseq; |
81628103 | 963 | cur_reg = w->reg; |
7be31be8 | 964 | cur_dapm = w->dapm; |
81628103 MB |
965 | list_move(&w->power_list, &pending); |
966 | break; | |
163cac06 | 967 | } |
b22ead2a MB |
968 | |
969 | if (ret < 0) | |
f7d41ae8 JN |
970 | dev_err(w->dapm->dev, |
971 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 972 | } |
b22ead2a MB |
973 | |
974 | if (!list_empty(&pending)) | |
ce6120cc | 975 | dapm_seq_run_coalesced(dapm, &pending); |
474b62d6 MB |
976 | |
977 | if (cur_dapm && cur_dapm->seq_notifier) { | |
978 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
979 | if (sort[i] == cur_sort) | |
980 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 981 | i, cur_subseq); |
474b62d6 | 982 | } |
42aa3418 MB |
983 | } |
984 | ||
97404f2e MB |
985 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
986 | { | |
987 | struct snd_soc_dapm_update *update = dapm->update; | |
988 | struct snd_soc_dapm_widget *w; | |
989 | int ret; | |
990 | ||
991 | if (!update) | |
992 | return; | |
993 | ||
994 | w = update->widget; | |
995 | ||
996 | if (w->event && | |
997 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
998 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
999 | if (ret != 0) | |
1000 | pr_err("%s DAPM pre-event failed: %d\n", | |
1001 | w->name, ret); | |
1002 | } | |
1003 | ||
1004 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, | |
1005 | update->val); | |
1006 | if (ret < 0) | |
1007 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1008 | ||
1009 | if (w->event && | |
1010 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1011 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1012 | if (ret != 0) | |
1013 | pr_err("%s DAPM post-event failed: %d\n", | |
1014 | w->name, ret); | |
1015 | } | |
1016 | } | |
1017 | ||
9d0624a7 MB |
1018 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1019 | * they're changing state. | |
1020 | */ | |
1021 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1022 | { | |
1023 | struct snd_soc_dapm_context *d = data; | |
1024 | int ret; | |
1025 | ||
1026 | if (d->dev_power && d->bias_level == SND_SOC_BIAS_OFF) { | |
1027 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); | |
1028 | if (ret != 0) | |
1029 | dev_err(d->dev, | |
1030 | "Failed to turn on bias: %d\n", ret); | |
1031 | } | |
1032 | ||
1033 | /* If we're changing to all on or all off then prepare */ | |
1034 | if ((d->dev_power && d->bias_level == SND_SOC_BIAS_STANDBY) || | |
1035 | (!d->dev_power && d->bias_level == SND_SOC_BIAS_ON)) { | |
1036 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); | |
1037 | if (ret != 0) | |
1038 | dev_err(d->dev, | |
1039 | "Failed to prepare bias: %d\n", ret); | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | /* Async callback run prior to DAPM sequences - brings to their final | |
1044 | * state. | |
1045 | */ | |
1046 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1047 | { | |
1048 | struct snd_soc_dapm_context *d = data; | |
1049 | int ret; | |
1050 | ||
1051 | /* If we just powered the last thing off drop to standby bias */ | |
1052 | if (d->bias_level == SND_SOC_BIAS_PREPARE && !d->dev_power) { | |
1053 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); | |
1054 | if (ret != 0) | |
1055 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1056 | ret); | |
1057 | } | |
97404f2e | 1058 | |
9d0624a7 MB |
1059 | /* If we're in standby and can support bias off then do that */ |
1060 | if (d->bias_level == SND_SOC_BIAS_STANDBY && d->idle_bias_off) { | |
1061 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); | |
1062 | if (ret != 0) | |
1063 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
1064 | } | |
1065 | ||
1066 | /* If we just powered up then move to active bias */ | |
1067 | if (d->bias_level == SND_SOC_BIAS_PREPARE && d->dev_power) { | |
1068 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); | |
1069 | if (ret != 0) | |
1070 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1071 | ret); | |
1072 | } | |
1073 | } | |
97404f2e | 1074 | |
2b97eabc RP |
1075 | /* |
1076 | * Scan each dapm widget for complete audio path. | |
1077 | * A complete path is a route that has valid endpoints i.e.:- | |
1078 | * | |
1079 | * o DAC to output pin. | |
1080 | * o Input Pin to ADC. | |
1081 | * o Input pin to Output pin (bypass, sidetone) | |
1082 | * o DAC to ADC (loopback). | |
1083 | */ | |
ce6120cc | 1084 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1085 | { |
12ea2c78 | 1086 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1087 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1088 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1089 | LIST_HEAD(up_list); |
1090 | LIST_HEAD(down_list); | |
9d0624a7 | 1091 | LIST_HEAD(async_domain); |
38357ab2 | 1092 | int power; |
6d3ddc81 | 1093 | |
84e90930 MB |
1094 | trace_snd_soc_dapm_start(card); |
1095 | ||
7be31be8 JN |
1096 | list_for_each_entry(d, &card->dapm_list, list) |
1097 | if (d->n_widgets) | |
1098 | d->dev_power = 0; | |
1099 | ||
6d3ddc81 MB |
1100 | /* Check which widgets we need to power and store them in |
1101 | * lists indicating if they should be powered up or down. | |
1102 | */ | |
97c866de | 1103 | list_for_each_entry(w, &card->widgets, list) { |
6d3ddc81 MB |
1104 | switch (w->id) { |
1105 | case snd_soc_dapm_pre: | |
828a842f | 1106 | dapm_seq_insert(w, &down_list, false); |
6d3ddc81 MB |
1107 | break; |
1108 | case snd_soc_dapm_post: | |
828a842f | 1109 | dapm_seq_insert(w, &up_list, true); |
6d3ddc81 MB |
1110 | break; |
1111 | ||
1112 | default: | |
1113 | if (!w->power_check) | |
1114 | continue; | |
1115 | ||
9949788b | 1116 | if (!w->force) |
50b6bce5 | 1117 | power = w->power_check(w); |
9949788b MB |
1118 | else |
1119 | power = 1; | |
1120 | if (power) | |
7be31be8 | 1121 | w->dapm->dev_power = 1; |
452c5eaa | 1122 | |
6d3ddc81 MB |
1123 | if (w->power == power) |
1124 | continue; | |
1125 | ||
84e90930 MB |
1126 | trace_snd_soc_dapm_widget_power(w, power); |
1127 | ||
6d3ddc81 | 1128 | if (power) |
828a842f | 1129 | dapm_seq_insert(w, &up_list, true); |
6d3ddc81 | 1130 | else |
828a842f | 1131 | dapm_seq_insert(w, &down_list, false); |
6d3ddc81 MB |
1132 | |
1133 | w->power = power; | |
1134 | break; | |
1135 | } | |
2b97eabc RP |
1136 | } |
1137 | ||
b14b76a5 MB |
1138 | /* If there are no DAPM widgets then try to figure out power from the |
1139 | * event type. | |
1140 | */ | |
97c866de | 1141 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1142 | switch (event) { |
1143 | case SND_SOC_DAPM_STREAM_START: | |
1144 | case SND_SOC_DAPM_STREAM_RESUME: | |
7be31be8 | 1145 | dapm->dev_power = 1; |
b14b76a5 | 1146 | break; |
862af8ad | 1147 | case SND_SOC_DAPM_STREAM_STOP: |
7be31be8 | 1148 | dapm->dev_power = !!dapm->codec->active; |
862af8ad | 1149 | break; |
50b6bce5 | 1150 | case SND_SOC_DAPM_STREAM_SUSPEND: |
7be31be8 | 1151 | dapm->dev_power = 0; |
50b6bce5 | 1152 | break; |
b14b76a5 | 1153 | case SND_SOC_DAPM_STREAM_NOP: |
ce6120cc | 1154 | switch (dapm->bias_level) { |
a96ca338 MB |
1155 | case SND_SOC_BIAS_STANDBY: |
1156 | case SND_SOC_BIAS_OFF: | |
7be31be8 | 1157 | dapm->dev_power = 0; |
a96ca338 MB |
1158 | break; |
1159 | default: | |
7be31be8 | 1160 | dapm->dev_power = 1; |
a96ca338 MB |
1161 | break; |
1162 | } | |
50b6bce5 | 1163 | break; |
b14b76a5 MB |
1164 | default: |
1165 | break; | |
1166 | } | |
1167 | } | |
1168 | ||
9d0624a7 MB |
1169 | /* Run all the bias changes in parallel */ |
1170 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1171 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1172 | &async_domain); | |
1173 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1174 | |
6d3ddc81 | 1175 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1176 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1177 | |
97404f2e MB |
1178 | dapm_widget_update(dapm); |
1179 | ||
6d3ddc81 | 1180 | /* Now power up. */ |
828a842f | 1181 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1182 | |
9d0624a7 MB |
1183 | /* Run all the bias changes in parallel */ |
1184 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1185 | async_schedule_domain(dapm_post_sequence_async, d, | |
1186 | &async_domain); | |
1187 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1188 | |
fd8d3bc0 JN |
1189 | pop_dbg(dapm->dev, card->pop_time, |
1190 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1191 | pop_wait(card->pop_time); |
cb507e7e | 1192 | |
84e90930 MB |
1193 | trace_snd_soc_dapm_done(card); |
1194 | ||
42aa3418 | 1195 | return 0; |
2b97eabc RP |
1196 | } |
1197 | ||
79fb9387 MB |
1198 | #ifdef CONFIG_DEBUG_FS |
1199 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1200 | { | |
1201 | file->private_data = inode->i_private; | |
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1206 | char __user *user_buf, | |
1207 | size_t count, loff_t *ppos) | |
1208 | { | |
1209 | struct snd_soc_dapm_widget *w = file->private_data; | |
1210 | char *buf; | |
1211 | int in, out; | |
1212 | ssize_t ret; | |
1213 | struct snd_soc_dapm_path *p = NULL; | |
1214 | ||
1215 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1216 | if (!buf) | |
1217 | return -ENOMEM; | |
1218 | ||
1219 | in = is_connected_input_ep(w); | |
ce6120cc | 1220 | dapm_clear_walk(w->dapm); |
79fb9387 | 1221 | out = is_connected_output_ep(w); |
ce6120cc | 1222 | dapm_clear_walk(w->dapm); |
79fb9387 | 1223 | |
d033c36a | 1224 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1225 | w->name, w->power ? "On" : "Off", in, out); |
1226 | ||
d033c36a MB |
1227 | if (w->reg >= 0) |
1228 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1229 | " - R%d(0x%x) bit %d", | |
1230 | w->reg, w->reg, w->shift); | |
1231 | ||
1232 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1233 | ||
3eef08ba MB |
1234 | if (w->sname) |
1235 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1236 | w->sname, | |
1237 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1238 | |
1239 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1240 | if (p->connected && !p->connected(w, p->sink)) |
1241 | continue; | |
1242 | ||
79fb9387 MB |
1243 | if (p->connect) |
1244 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1245 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1246 | p->name ? p->name : "static", |
1247 | p->source->name); | |
1248 | } | |
1249 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1250 | if (p->connected && !p->connected(w, p->sink)) |
1251 | continue; | |
1252 | ||
79fb9387 MB |
1253 | if (p->connect) |
1254 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1255 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1256 | p->name ? p->name : "static", |
1257 | p->sink->name); | |
1258 | } | |
1259 | ||
1260 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1261 | ||
1262 | kfree(buf); | |
1263 | return ret; | |
1264 | } | |
1265 | ||
1266 | static const struct file_operations dapm_widget_power_fops = { | |
1267 | .open = dapm_widget_power_open_file, | |
1268 | .read = dapm_widget_power_read_file, | |
6038f373 | 1269 | .llseek = default_llseek, |
79fb9387 MB |
1270 | }; |
1271 | ||
ce6120cc | 1272 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1273 | { |
1274 | struct snd_soc_dapm_widget *w; | |
1275 | struct dentry *d; | |
1276 | ||
ce6120cc | 1277 | if (!dapm->debugfs_dapm) |
79fb9387 MB |
1278 | return; |
1279 | ||
97c866de JN |
1280 | list_for_each_entry(w, &dapm->card->widgets, list) { |
1281 | if (!w->name || w->dapm != dapm) | |
79fb9387 MB |
1282 | continue; |
1283 | ||
1284 | d = debugfs_create_file(w->name, 0444, | |
ce6120cc | 1285 | dapm->debugfs_dapm, w, |
79fb9387 MB |
1286 | &dapm_widget_power_fops); |
1287 | if (!d) | |
f7d41ae8 JN |
1288 | dev_warn(w->dapm->dev, |
1289 | "ASoC: Failed to create %s debugfs file\n", | |
1290 | w->name); | |
79fb9387 MB |
1291 | } |
1292 | } | |
1293 | #else | |
ce6120cc | 1294 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1295 | { |
1296 | } | |
1297 | #endif | |
1298 | ||
2b97eabc | 1299 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1300 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1301 | struct snd_kcontrol *kcontrol, int change, |
1302 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1303 | { |
1304 | struct snd_soc_dapm_path *path; | |
1305 | int found = 0; | |
1306 | ||
eff317d0 | 1307 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1308 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1309 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1310 | return -ENODEV; |
1311 | ||
3a65577d | 1312 | if (!change) |
2b97eabc RP |
1313 | return 0; |
1314 | ||
1315 | /* find dapm widget path assoc with kcontrol */ | |
8ddab3f5 | 1316 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1317 | if (path->kcontrol != kcontrol) |
1318 | continue; | |
1319 | ||
cb01e2b9 | 1320 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1321 | continue; |
1322 | ||
1323 | found = 1; | |
1324 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1325 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1326 | path->connect = 1; /* new connection */ |
1327 | else | |
1328 | path->connect = 0; /* old connection must be powered down */ | |
1329 | } | |
1330 | ||
b91b8fa0 | 1331 | if (found) |
ce6120cc | 1332 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1333 | |
1334 | return 0; | |
1335 | } | |
2b97eabc | 1336 | |
1b075e3f | 1337 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1338 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1339 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1340 | { |
1341 | struct snd_soc_dapm_path *path; | |
1342 | int found = 0; | |
1343 | ||
1b075e3f | 1344 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1345 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1346 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1347 | return -ENODEV; |
1348 | ||
2b97eabc | 1349 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1350 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1351 | if (path->kcontrol != kcontrol) |
1352 | continue; | |
1353 | ||
1354 | /* found, now check type */ | |
1355 | found = 1; | |
283375ce | 1356 | path->connect = connect; |
2b97eabc RP |
1357 | break; |
1358 | } | |
1359 | ||
b91b8fa0 | 1360 | if (found) |
ce6120cc | 1361 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1362 | |
1363 | return 0; | |
1364 | } | |
2b97eabc RP |
1365 | |
1366 | /* show dapm widget status in sys fs */ | |
1367 | static ssize_t dapm_widget_show(struct device *dev, | |
1368 | struct device_attribute *attr, char *buf) | |
1369 | { | |
f0fba2ad LG |
1370 | struct snd_soc_pcm_runtime *rtd = |
1371 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1372 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1373 | struct snd_soc_dapm_widget *w; |
1374 | int count = 0; | |
1375 | char *state = "not set"; | |
1376 | ||
97c866de JN |
1377 | list_for_each_entry(w, &codec->card->widgets, list) { |
1378 | if (w->dapm != &codec->dapm) | |
1379 | continue; | |
2b97eabc RP |
1380 | |
1381 | /* only display widgets that burnm power */ | |
1382 | switch (w->id) { | |
1383 | case snd_soc_dapm_hp: | |
1384 | case snd_soc_dapm_mic: | |
1385 | case snd_soc_dapm_spk: | |
1386 | case snd_soc_dapm_line: | |
1387 | case snd_soc_dapm_micbias: | |
1388 | case snd_soc_dapm_dac: | |
1389 | case snd_soc_dapm_adc: | |
1390 | case snd_soc_dapm_pga: | |
d88429a6 | 1391 | case snd_soc_dapm_out_drv: |
2b97eabc | 1392 | case snd_soc_dapm_mixer: |
ca9c1aae | 1393 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1394 | case snd_soc_dapm_supply: |
2b97eabc RP |
1395 | if (w->name) |
1396 | count += sprintf(buf + count, "%s: %s\n", | |
1397 | w->name, w->power ? "On":"Off"); | |
1398 | break; | |
1399 | default: | |
1400 | break; | |
1401 | } | |
1402 | } | |
1403 | ||
ce6120cc | 1404 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1405 | case SND_SOC_BIAS_ON: |
1406 | state = "On"; | |
2b97eabc | 1407 | break; |
0be9898a MB |
1408 | case SND_SOC_BIAS_PREPARE: |
1409 | state = "Prepare"; | |
2b97eabc | 1410 | break; |
0be9898a MB |
1411 | case SND_SOC_BIAS_STANDBY: |
1412 | state = "Standby"; | |
2b97eabc | 1413 | break; |
0be9898a MB |
1414 | case SND_SOC_BIAS_OFF: |
1415 | state = "Off"; | |
2b97eabc RP |
1416 | break; |
1417 | } | |
1418 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1419 | ||
1420 | return count; | |
1421 | } | |
1422 | ||
1423 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1424 | ||
1425 | int snd_soc_dapm_sys_add(struct device *dev) | |
1426 | { | |
12ef193d | 1427 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1428 | } |
1429 | ||
1430 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1431 | { | |
aef90843 | 1432 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1433 | } |
1434 | ||
1435 | /* free all dapm widgets and resources */ | |
ce6120cc | 1436 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1437 | { |
1438 | struct snd_soc_dapm_widget *w, *next_w; | |
1439 | struct snd_soc_dapm_path *p, *next_p; | |
1440 | ||
97c866de JN |
1441 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1442 | if (w->dapm != dapm) | |
1443 | continue; | |
2b97eabc | 1444 | list_del(&w->list); |
8ddab3f5 JN |
1445 | /* |
1446 | * remove source and sink paths associated to this widget. | |
1447 | * While removing the path, remove reference to it from both | |
1448 | * source and sink widgets so that path is removed only once. | |
1449 | */ | |
1450 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1451 | list_del(&p->list_sink); | |
1452 | list_del(&p->list_source); | |
1453 | list_del(&p->list); | |
1454 | kfree(p->long_name); | |
1455 | kfree(p); | |
1456 | } | |
1457 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1458 | list_del(&p->list_sink); | |
1459 | list_del(&p->list_source); | |
1460 | list_del(&p->list); | |
1461 | kfree(p->long_name); | |
1462 | kfree(p); | |
1463 | } | |
ead9b919 | 1464 | kfree(w->name); |
2b97eabc RP |
1465 | kfree(w); |
1466 | } | |
2b97eabc RP |
1467 | } |
1468 | ||
ce6120cc | 1469 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, |
1649923d | 1470 | const char *pin, int status) |
a5302181 LG |
1471 | { |
1472 | struct snd_soc_dapm_widget *w; | |
1473 | ||
97c866de JN |
1474 | list_for_each_entry(w, &dapm->card->widgets, list) { |
1475 | if (w->dapm != dapm) | |
1476 | continue; | |
a5302181 | 1477 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
1478 | dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n", |
1479 | pin, status); | |
a5302181 | 1480 | w->connected = status; |
5b9e87cc MB |
1481 | /* Allow disabling of forced pins */ |
1482 | if (status == 0) | |
1483 | w->force = 0; | |
a5302181 LG |
1484 | return 0; |
1485 | } | |
1486 | } | |
1487 | ||
f7d41ae8 | 1488 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
a5302181 LG |
1489 | return -EINVAL; |
1490 | } | |
1491 | ||
2b97eabc | 1492 | /** |
a5302181 | 1493 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1494 | * @dapm: DAPM context |
2b97eabc RP |
1495 | * |
1496 | * Walks all dapm audio paths and powers widgets according to their | |
1497 | * stream or path usage. | |
1498 | * | |
1499 | * Returns 0 for success. | |
1500 | */ | |
ce6120cc | 1501 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1502 | { |
ce6120cc | 1503 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1504 | } |
a5302181 | 1505 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1506 | |
ce6120cc | 1507 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1508 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1509 | { |
1510 | struct snd_soc_dapm_path *path; | |
1511 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 1512 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 1513 | const char *sink; |
215edda3 | 1514 | const char *control = route->control; |
ead9b919 JN |
1515 | const char *source; |
1516 | char prefixed_sink[80]; | |
1517 | char prefixed_source[80]; | |
2b97eabc RP |
1518 | int ret = 0; |
1519 | ||
ead9b919 JN |
1520 | if (dapm->codec->name_prefix) { |
1521 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
1522 | dapm->codec->name_prefix, route->sink); | |
1523 | sink = prefixed_sink; | |
1524 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1525 | dapm->codec->name_prefix, route->source); | |
1526 | source = prefixed_source; | |
1527 | } else { | |
1528 | sink = route->sink; | |
1529 | source = route->source; | |
1530 | } | |
1531 | ||
97c866de JN |
1532 | /* |
1533 | * find src and dest widgets over all widgets but favor a widget from | |
1534 | * current DAPM context | |
1535 | */ | |
1536 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 1537 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
1538 | wtsink = w; |
1539 | if (w->dapm == dapm) | |
1540 | wsink = w; | |
2b97eabc RP |
1541 | continue; |
1542 | } | |
1543 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
1544 | wtsource = w; |
1545 | if (w->dapm == dapm) | |
1546 | wsource = w; | |
2b97eabc RP |
1547 | } |
1548 | } | |
97c866de JN |
1549 | /* use widget from another DAPM context if not found from this */ |
1550 | if (!wsink) | |
1551 | wsink = wtsink; | |
1552 | if (!wsource) | |
1553 | wsource = wtsource; | |
2b97eabc RP |
1554 | |
1555 | if (wsource == NULL || wsink == NULL) | |
1556 | return -ENODEV; | |
1557 | ||
1558 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1559 | if (!path) | |
1560 | return -ENOMEM; | |
1561 | ||
1562 | path->source = wsource; | |
1563 | path->sink = wsink; | |
215edda3 | 1564 | path->connected = route->connected; |
2b97eabc RP |
1565 | INIT_LIST_HEAD(&path->list); |
1566 | INIT_LIST_HEAD(&path->list_source); | |
1567 | INIT_LIST_HEAD(&path->list_sink); | |
1568 | ||
1569 | /* check for external widgets */ | |
1570 | if (wsink->id == snd_soc_dapm_input) { | |
1571 | if (wsource->id == snd_soc_dapm_micbias || | |
1572 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1573 | wsource->id == snd_soc_dapm_line || |
1574 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1575 | wsink->ext = 1; |
1576 | } | |
1577 | if (wsource->id == snd_soc_dapm_output) { | |
1578 | if (wsink->id == snd_soc_dapm_spk || | |
1579 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1580 | wsink->id == snd_soc_dapm_line || |
1581 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1582 | wsource->ext = 1; |
1583 | } | |
1584 | ||
1585 | /* connect static paths */ | |
1586 | if (control == NULL) { | |
8ddab3f5 | 1587 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1588 | list_add(&path->list_sink, &wsink->sources); |
1589 | list_add(&path->list_source, &wsource->sinks); | |
1590 | path->connect = 1; | |
1591 | return 0; | |
1592 | } | |
1593 | ||
1594 | /* connect dynamic paths */ | |
1595 | switch(wsink->id) { | |
1596 | case snd_soc_dapm_adc: | |
1597 | case snd_soc_dapm_dac: | |
1598 | case snd_soc_dapm_pga: | |
d88429a6 | 1599 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
1600 | case snd_soc_dapm_input: |
1601 | case snd_soc_dapm_output: | |
1602 | case snd_soc_dapm_micbias: | |
1603 | case snd_soc_dapm_vmid: | |
1604 | case snd_soc_dapm_pre: | |
1605 | case snd_soc_dapm_post: | |
246d0a17 | 1606 | case snd_soc_dapm_supply: |
010ff262 MB |
1607 | case snd_soc_dapm_aif_in: |
1608 | case snd_soc_dapm_aif_out: | |
8ddab3f5 | 1609 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1610 | list_add(&path->list_sink, &wsink->sources); |
1611 | list_add(&path->list_source, &wsource->sinks); | |
1612 | path->connect = 1; | |
1613 | return 0; | |
1614 | case snd_soc_dapm_mux: | |
24ff33ac | 1615 | case snd_soc_dapm_virt_mux: |
74155556 | 1616 | case snd_soc_dapm_value_mux: |
ce6120cc | 1617 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
2b97eabc RP |
1618 | &wsink->kcontrols[0]); |
1619 | if (ret != 0) | |
1620 | goto err; | |
1621 | break; | |
1622 | case snd_soc_dapm_switch: | |
1623 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1624 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1625 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1626 | if (ret != 0) |
1627 | goto err; | |
1628 | break; | |
1629 | case snd_soc_dapm_hp: | |
1630 | case snd_soc_dapm_mic: | |
1631 | case snd_soc_dapm_line: | |
1632 | case snd_soc_dapm_spk: | |
8ddab3f5 | 1633 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1634 | list_add(&path->list_sink, &wsink->sources); |
1635 | list_add(&path->list_source, &wsource->sinks); | |
1636 | path->connect = 0; | |
1637 | return 0; | |
1638 | } | |
1639 | return 0; | |
1640 | ||
1641 | err: | |
f7d41ae8 JN |
1642 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1643 | source, control, sink); | |
2b97eabc RP |
1644 | kfree(path); |
1645 | return ret; | |
1646 | } | |
105f1c28 | 1647 | |
105f1c28 MB |
1648 | /** |
1649 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1650 | * @dapm: DAPM context |
105f1c28 MB |
1651 | * @route: audio routes |
1652 | * @num: number of routes | |
1653 | * | |
1654 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1655 | * the widget receiving the audio signal, whilst the source is the sender | |
1656 | * of the audio signal. | |
1657 | * | |
1658 | * Returns 0 for success else error. On error all resources can be freed | |
1659 | * with a call to snd_soc_card_free(). | |
1660 | */ | |
ce6120cc | 1661 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1662 | const struct snd_soc_dapm_route *route, int num) |
1663 | { | |
1664 | int i, ret; | |
1665 | ||
1666 | for (i = 0; i < num; i++) { | |
ce6120cc | 1667 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1668 | if (ret < 0) { |
f7d41ae8 JN |
1669 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1670 | route->source, route->sink); | |
105f1c28 MB |
1671 | return ret; |
1672 | } | |
1673 | route++; | |
1674 | } | |
1675 | ||
1676 | return 0; | |
1677 | } | |
1678 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1679 | ||
2b97eabc RP |
1680 | /** |
1681 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 1682 | * @dapm: DAPM context |
2b97eabc RP |
1683 | * |
1684 | * Checks the codec for any new dapm widgets and creates them if found. | |
1685 | * | |
1686 | * Returns 0 for success. | |
1687 | */ | |
ce6120cc | 1688 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1689 | { |
1690 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 1691 | unsigned int val; |
2b97eabc | 1692 | |
97c866de | 1693 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
1694 | { |
1695 | if (w->new) | |
1696 | continue; | |
1697 | ||
1698 | switch(w->id) { | |
1699 | case snd_soc_dapm_switch: | |
1700 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1701 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 1702 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1703 | dapm_new_mixer(dapm, w); |
2b97eabc RP |
1704 | break; |
1705 | case snd_soc_dapm_mux: | |
24ff33ac | 1706 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 1707 | case snd_soc_dapm_value_mux: |
b75576d7 | 1708 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1709 | dapm_new_mux(dapm, w); |
2b97eabc RP |
1710 | break; |
1711 | case snd_soc_dapm_adc: | |
010ff262 | 1712 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
1713 | w->power_check = dapm_adc_check_power; |
1714 | break; | |
2b97eabc | 1715 | case snd_soc_dapm_dac: |
010ff262 | 1716 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
1717 | w->power_check = dapm_dac_check_power; |
1718 | break; | |
2b97eabc | 1719 | case snd_soc_dapm_pga: |
d88429a6 | 1720 | case snd_soc_dapm_out_drv: |
b75576d7 | 1721 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1722 | dapm_new_pga(dapm, w); |
2b97eabc RP |
1723 | break; |
1724 | case snd_soc_dapm_input: | |
1725 | case snd_soc_dapm_output: | |
1726 | case snd_soc_dapm_micbias: | |
1727 | case snd_soc_dapm_spk: | |
1728 | case snd_soc_dapm_hp: | |
1729 | case snd_soc_dapm_mic: | |
1730 | case snd_soc_dapm_line: | |
b75576d7 MB |
1731 | w->power_check = dapm_generic_check_power; |
1732 | break; | |
246d0a17 MB |
1733 | case snd_soc_dapm_supply: |
1734 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
1735 | case snd_soc_dapm_vmid: |
1736 | case snd_soc_dapm_pre: | |
1737 | case snd_soc_dapm_post: | |
1738 | break; | |
1739 | } | |
b66a70d5 MB |
1740 | |
1741 | /* Read the initial power state from the device */ | |
1742 | if (w->reg >= 0) { | |
1743 | val = snd_soc_read(w->codec, w->reg); | |
1744 | val &= 1 << w->shift; | |
1745 | if (w->invert) | |
1746 | val = !val; | |
1747 | ||
1748 | if (val) | |
1749 | w->power = 1; | |
1750 | } | |
1751 | ||
2b97eabc RP |
1752 | w->new = 1; |
1753 | } | |
1754 | ||
ce6120cc | 1755 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1756 | return 0; |
1757 | } | |
1758 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
1759 | ||
1760 | /** | |
1761 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
1762 | * @kcontrol: mixer control | |
ac11a2b3 | 1763 | * @ucontrol: control element information |
2b97eabc RP |
1764 | * |
1765 | * Callback to get the value of a dapm mixer control. | |
1766 | * | |
1767 | * Returns 0 for success. | |
1768 | */ | |
1769 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
1770 | struct snd_ctl_elem_value *ucontrol) | |
1771 | { | |
1772 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1773 | struct soc_mixer_control *mc = |
1774 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1775 | unsigned int reg = mc->reg; |
1776 | unsigned int shift = mc->shift; | |
1777 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1778 | int max = mc->max; |
815ecf8d JS |
1779 | unsigned int invert = mc->invert; |
1780 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 1781 | |
2b97eabc RP |
1782 | ucontrol->value.integer.value[0] = |
1783 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
1784 | if (shift != rshift) | |
1785 | ucontrol->value.integer.value[1] = | |
1786 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
1787 | if (invert) { | |
1788 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1789 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
1790 | if (shift != rshift) |
1791 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1792 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
1793 | } |
1794 | ||
1795 | return 0; | |
1796 | } | |
1797 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
1798 | ||
1799 | /** | |
1800 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
1801 | * @kcontrol: mixer control | |
ac11a2b3 | 1802 | * @ucontrol: control element information |
2b97eabc RP |
1803 | * |
1804 | * Callback to set the value of a dapm mixer control. | |
1805 | * | |
1806 | * Returns 0 for success. | |
1807 | */ | |
1808 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
1809 | struct snd_ctl_elem_value *ucontrol) | |
1810 | { | |
1811 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1812 | struct soc_mixer_control *mc = |
1813 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1814 | unsigned int reg = mc->reg; |
1815 | unsigned int shift = mc->shift; | |
4eaa9819 | 1816 | int max = mc->max; |
815ecf8d JS |
1817 | unsigned int mask = (1 << fls(max)) - 1; |
1818 | unsigned int invert = mc->invert; | |
e9cf7049 | 1819 | unsigned int val; |
97404f2e MB |
1820 | int connect, change; |
1821 | struct snd_soc_dapm_update update; | |
2b97eabc RP |
1822 | |
1823 | val = (ucontrol->value.integer.value[0] & mask); | |
1824 | ||
1825 | if (invert) | |
a7a4ac86 | 1826 | val = max - val; |
e9cf7049 | 1827 | mask = mask << shift; |
2b97eabc | 1828 | val = val << shift; |
2b97eabc RP |
1829 | |
1830 | mutex_lock(&widget->codec->mutex); | |
1831 | widget->value = val; | |
1832 | ||
e9cf7049 | 1833 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 1834 | if (change) { |
283375ce MB |
1835 | if (val) |
1836 | /* new connection */ | |
1837 | connect = invert ? 0:1; | |
1838 | else | |
1839 | /* old connection must be powered down */ | |
1840 | connect = invert ? 1:0; | |
1841 | ||
97404f2e MB |
1842 | update.kcontrol = kcontrol; |
1843 | update.widget = widget; | |
1844 | update.reg = reg; | |
1845 | update.mask = mask; | |
1846 | update.val = val; | |
1847 | widget->dapm->update = &update; | |
1848 | ||
283375ce | 1849 | dapm_mixer_update_power(widget, kcontrol, connect); |
97404f2e MB |
1850 | |
1851 | widget->dapm->update = NULL; | |
283375ce MB |
1852 | } |
1853 | ||
2b97eabc | 1854 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 1855 | return 0; |
2b97eabc RP |
1856 | } |
1857 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
1858 | ||
1859 | /** | |
1860 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
1861 | * @kcontrol: mixer control | |
ac11a2b3 | 1862 | * @ucontrol: control element information |
2b97eabc RP |
1863 | * |
1864 | * Callback to get the value of a dapm enumerated double mixer control. | |
1865 | * | |
1866 | * Returns 0 for success. | |
1867 | */ | |
1868 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
1869 | struct snd_ctl_elem_value *ucontrol) | |
1870 | { | |
1871 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1872 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1873 | unsigned int val, bitmask; |
2b97eabc | 1874 | |
f8ba0b7b | 1875 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
1876 | ; |
1877 | val = snd_soc_read(widget->codec, e->reg); | |
1878 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
1879 | if (e->shift_l != e->shift_r) | |
1880 | ucontrol->value.enumerated.item[1] = | |
1881 | (val >> e->shift_r) & (bitmask - 1); | |
1882 | ||
1883 | return 0; | |
1884 | } | |
1885 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
1886 | ||
1887 | /** | |
1888 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
1889 | * @kcontrol: mixer control | |
ac11a2b3 | 1890 | * @ucontrol: control element information |
2b97eabc RP |
1891 | * |
1892 | * Callback to set the value of a dapm enumerated double mixer control. | |
1893 | * | |
1894 | * Returns 0 for success. | |
1895 | */ | |
1896 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
1897 | struct snd_ctl_elem_value *ucontrol) | |
1898 | { | |
1899 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1900 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
3a65577d | 1901 | unsigned int val, mux, change; |
46f5822f | 1902 | unsigned int mask, bitmask; |
97404f2e | 1903 | struct snd_soc_dapm_update update; |
2b97eabc | 1904 | |
f8ba0b7b | 1905 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 1906 | ; |
f8ba0b7b | 1907 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
1908 | return -EINVAL; |
1909 | mux = ucontrol->value.enumerated.item[0]; | |
1910 | val = mux << e->shift_l; | |
1911 | mask = (bitmask - 1) << e->shift_l; | |
1912 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1913 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
1914 | return -EINVAL; |
1915 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1916 | mask |= (bitmask - 1) << e->shift_r; | |
1917 | } | |
1918 | ||
1919 | mutex_lock(&widget->codec->mutex); | |
1920 | widget->value = val; | |
3a65577d | 1921 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1642e3d4 | 1922 | |
97404f2e MB |
1923 | update.kcontrol = kcontrol; |
1924 | update.widget = widget; | |
1925 | update.reg = e->reg; | |
1926 | update.mask = mask; | |
1927 | update.val = val; | |
1928 | widget->dapm->update = &update; | |
1642e3d4 | 1929 | |
97404f2e | 1930 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 1931 | |
97404f2e | 1932 | widget->dapm->update = NULL; |
2b97eabc | 1933 | |
2b97eabc | 1934 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 1935 | return change; |
2b97eabc RP |
1936 | } |
1937 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
1938 | ||
d2b247a8 MB |
1939 | /** |
1940 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
1941 | * @kcontrol: mixer control | |
1942 | * @ucontrol: control element information | |
1943 | * | |
1944 | * Returns 0 for success. | |
1945 | */ | |
1946 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
1947 | struct snd_ctl_elem_value *ucontrol) | |
1948 | { | |
1949 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1950 | ||
1951 | ucontrol->value.enumerated.item[0] = widget->value; | |
1952 | ||
1953 | return 0; | |
1954 | } | |
1955 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
1956 | ||
1957 | /** | |
1958 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
1959 | * @kcontrol: mixer control | |
1960 | * @ucontrol: control element information | |
1961 | * | |
1962 | * Returns 0 for success. | |
1963 | */ | |
1964 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
1965 | struct snd_ctl_elem_value *ucontrol) | |
1966 | { | |
1967 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1968 | struct soc_enum *e = | |
1969 | (struct soc_enum *)kcontrol->private_value; | |
1970 | int change; | |
1971 | int ret = 0; | |
1972 | ||
1973 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
1974 | return -EINVAL; | |
1975 | ||
1976 | mutex_lock(&widget->codec->mutex); | |
1977 | ||
1978 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
1979 | widget->value = ucontrol->value.enumerated.item[0]; | |
1980 | dapm_mux_update_power(widget, kcontrol, change, widget->value, e); | |
1981 | ||
1982 | mutex_unlock(&widget->codec->mutex); | |
1983 | return ret; | |
1984 | } | |
1985 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
1986 | ||
2e72f8e3 PU |
1987 | /** |
1988 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
1989 | * callback | |
1990 | * @kcontrol: mixer control | |
1991 | * @ucontrol: control element information | |
1992 | * | |
1993 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
1994 | * | |
1995 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1996 | * used for handling bitfield coded enumeration for example. | |
1997 | * | |
1998 | * Returns 0 for success. | |
1999 | */ | |
2000 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2001 | struct snd_ctl_elem_value *ucontrol) | |
2002 | { | |
2003 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 2004 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2005 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2006 | |
2007 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2008 | val = (reg_val >> e->shift_l) & e->mask; | |
2009 | for (mux = 0; mux < e->max; mux++) { | |
2010 | if (val == e->values[mux]) | |
2011 | break; | |
2012 | } | |
2013 | ucontrol->value.enumerated.item[0] = mux; | |
2014 | if (e->shift_l != e->shift_r) { | |
2015 | val = (reg_val >> e->shift_r) & e->mask; | |
2016 | for (mux = 0; mux < e->max; mux++) { | |
2017 | if (val == e->values[mux]) | |
2018 | break; | |
2019 | } | |
2020 | ucontrol->value.enumerated.item[1] = mux; | |
2021 | } | |
2022 | ||
2023 | return 0; | |
2024 | } | |
2025 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2026 | ||
2027 | /** | |
2028 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2029 | * callback | |
2030 | * @kcontrol: mixer control | |
2031 | * @ucontrol: control element information | |
2032 | * | |
2033 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2034 | * | |
2035 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2036 | * used for handling bitfield coded enumeration for example. | |
2037 | * | |
2038 | * Returns 0 for success. | |
2039 | */ | |
2040 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2041 | struct snd_ctl_elem_value *ucontrol) | |
2042 | { | |
2043 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 2044 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2045 | unsigned int val, mux, change; |
46f5822f | 2046 | unsigned int mask; |
97404f2e | 2047 | struct snd_soc_dapm_update update; |
2e72f8e3 PU |
2048 | |
2049 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2050 | return -EINVAL; | |
2051 | mux = ucontrol->value.enumerated.item[0]; | |
2052 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2053 | mask = e->mask << e->shift_l; | |
2054 | if (e->shift_l != e->shift_r) { | |
2055 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2056 | return -EINVAL; | |
2057 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2058 | mask |= e->mask << e->shift_r; | |
2059 | } | |
2060 | ||
2061 | mutex_lock(&widget->codec->mutex); | |
2062 | widget->value = val; | |
3a65577d | 2063 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1642e3d4 | 2064 | |
97404f2e MB |
2065 | update.kcontrol = kcontrol; |
2066 | update.widget = widget; | |
2067 | update.reg = e->reg; | |
2068 | update.mask = mask; | |
2069 | update.val = val; | |
2070 | widget->dapm->update = &update; | |
1642e3d4 | 2071 | |
97404f2e | 2072 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 2073 | |
97404f2e | 2074 | widget->dapm->update = NULL; |
2e72f8e3 | 2075 | |
2e72f8e3 | 2076 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 2077 | return change; |
2e72f8e3 PU |
2078 | } |
2079 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2080 | ||
8b37dbd2 MB |
2081 | /** |
2082 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2083 | * | |
2084 | * @kcontrol: mixer control | |
2085 | * @uinfo: control element information | |
2086 | * | |
2087 | * Callback to provide information about a pin switch control. | |
2088 | */ | |
2089 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2090 | struct snd_ctl_elem_info *uinfo) | |
2091 | { | |
2092 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2093 | uinfo->count = 1; | |
2094 | uinfo->value.integer.min = 0; | |
2095 | uinfo->value.integer.max = 1; | |
2096 | ||
2097 | return 0; | |
2098 | } | |
2099 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2100 | ||
2101 | /** | |
2102 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2103 | * | |
2104 | * @kcontrol: mixer control | |
2105 | * @ucontrol: Value | |
2106 | */ | |
2107 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2108 | struct snd_ctl_elem_value *ucontrol) | |
2109 | { | |
2110 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2111 | const char *pin = (const char *)kcontrol->private_value; | |
2112 | ||
2113 | mutex_lock(&codec->mutex); | |
2114 | ||
2115 | ucontrol->value.integer.value[0] = | |
ce6120cc | 2116 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
2117 | |
2118 | mutex_unlock(&codec->mutex); | |
2119 | ||
2120 | return 0; | |
2121 | } | |
2122 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2123 | ||
2124 | /** | |
2125 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2126 | * | |
2127 | * @kcontrol: mixer control | |
2128 | * @ucontrol: Value | |
2129 | */ | |
2130 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2131 | struct snd_ctl_elem_value *ucontrol) | |
2132 | { | |
2133 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2134 | const char *pin = (const char *)kcontrol->private_value; | |
2135 | ||
2136 | mutex_lock(&codec->mutex); | |
2137 | ||
2138 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 2139 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 2140 | else |
ce6120cc | 2141 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 2142 | |
ce6120cc | 2143 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
2144 | |
2145 | mutex_unlock(&codec->mutex); | |
2146 | ||
2147 | return 0; | |
2148 | } | |
2149 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2150 | ||
2b97eabc RP |
2151 | /** |
2152 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 2153 | * @dapm: DAPM context |
2b97eabc RP |
2154 | * @widget: widget template |
2155 | * | |
2156 | * Creates a new dapm control based upon the template. | |
2157 | * | |
2158 | * Returns 0 for success else error. | |
2159 | */ | |
ce6120cc | 2160 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
2161 | const struct snd_soc_dapm_widget *widget) |
2162 | { | |
2163 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2164 | size_t name_len; |
2b97eabc RP |
2165 | |
2166 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
2167 | return -ENOMEM; | |
2168 | ||
ead9b919 JN |
2169 | name_len = strlen(widget->name) + 1; |
2170 | if (dapm->codec->name_prefix) | |
2171 | name_len += 1 + strlen(dapm->codec->name_prefix); | |
2172 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2173 | if (w->name == NULL) { | |
2174 | kfree(w); | |
2175 | return -ENOMEM; | |
2176 | } | |
2177 | if (dapm->codec->name_prefix) | |
2178 | snprintf(w->name, name_len, "%s %s", | |
2179 | dapm->codec->name_prefix, widget->name); | |
2180 | else | |
2181 | snprintf(w->name, name_len, "%s", widget->name); | |
2182 | ||
97c866de | 2183 | dapm->n_widgets++; |
ce6120cc LG |
2184 | w->dapm = dapm; |
2185 | w->codec = dapm->codec; | |
2b97eabc RP |
2186 | INIT_LIST_HEAD(&w->sources); |
2187 | INIT_LIST_HEAD(&w->sinks); | |
2188 | INIT_LIST_HEAD(&w->list); | |
97c866de | 2189 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2190 | |
2191 | /* machine layer set ups unconnected pins and insertions */ | |
2192 | w->connected = 1; | |
2193 | return 0; | |
2194 | } | |
2195 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2196 | ||
4ba1327a MB |
2197 | /** |
2198 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2199 | * @dapm: DAPM context |
4ba1327a MB |
2200 | * @widget: widget array |
2201 | * @num: number of widgets | |
2202 | * | |
2203 | * Creates new DAPM controls based upon the templates. | |
2204 | * | |
2205 | * Returns 0 for success else error. | |
2206 | */ | |
ce6120cc | 2207 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2208 | const struct snd_soc_dapm_widget *widget, |
2209 | int num) | |
2210 | { | |
2211 | int i, ret; | |
2212 | ||
2213 | for (i = 0; i < num; i++) { | |
ce6120cc | 2214 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2215 | if (ret < 0) { |
f7d41ae8 JN |
2216 | dev_err(dapm->dev, |
2217 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2218 | widget->name, ret); | |
4ba1327a | 2219 | return ret; |
b8b33cb5 | 2220 | } |
4ba1327a MB |
2221 | widget++; |
2222 | } | |
2223 | return 0; | |
2224 | } | |
2225 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2226 | ||
ce6120cc | 2227 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2228 | const char *stream, int event) |
2b97eabc RP |
2229 | { |
2230 | struct snd_soc_dapm_widget *w; | |
2231 | ||
97c866de | 2232 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc | 2233 | { |
97c866de | 2234 | if (!w->sname || w->dapm != dapm) |
2b97eabc | 2235 | continue; |
f7d41ae8 JN |
2236 | dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
2237 | w->name, w->sname, stream, event); | |
2b97eabc RP |
2238 | if (strstr(w->sname, stream)) { |
2239 | switch(event) { | |
2240 | case SND_SOC_DAPM_STREAM_START: | |
2241 | w->active = 1; | |
2242 | break; | |
2243 | case SND_SOC_DAPM_STREAM_STOP: | |
2244 | w->active = 0; | |
2245 | break; | |
2246 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2247 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2248 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2249 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2250 | break; | |
2251 | } | |
2252 | } | |
2253 | } | |
2b97eabc | 2254 | |
ce6120cc LG |
2255 | dapm_power_widgets(dapm, event); |
2256 | } | |
2257 | ||
2258 | /** | |
2259 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2260 | * @rtd: PCM runtime data | |
2261 | * @stream: stream name | |
2262 | * @event: stream event | |
2263 | * | |
2264 | * Sends a stream event to the dapm core. The core then makes any | |
2265 | * necessary widget power changes. | |
2266 | * | |
2267 | * Returns 0 for success else error. | |
2268 | */ | |
2269 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2270 | const char *stream, int event) | |
2271 | { | |
2272 | struct snd_soc_codec *codec = rtd->codec; | |
2273 | ||
2274 | if (stream == NULL) | |
2275 | return 0; | |
2276 | ||
2277 | mutex_lock(&codec->mutex); | |
2278 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2279 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2280 | return 0; |
2281 | } | |
2b97eabc RP |
2282 | |
2283 | /** | |
a5302181 | 2284 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2285 | * @dapm: DAPM context |
a5302181 | 2286 | * @pin: pin name |
2b97eabc | 2287 | * |
74b8f955 | 2288 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2289 | * a valid audio route and active audio stream. |
2290 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2291 | * do any widget power switching. | |
2b97eabc | 2292 | */ |
ce6120cc | 2293 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2294 | { |
ce6120cc | 2295 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2296 | } |
2297 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2298 | |
da34183e MB |
2299 | /** |
2300 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2301 | * @dapm: DAPM context |
da34183e MB |
2302 | * @pin: pin name |
2303 | * | |
2304 | * Enables input/output pin regardless of any other state. This is | |
2305 | * intended for use with microphone bias supplies used in microphone | |
2306 | * jack detection. | |
2307 | * | |
2308 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2309 | * do any widget power switching. | |
2310 | */ | |
ce6120cc LG |
2311 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2312 | const char *pin) | |
da34183e MB |
2313 | { |
2314 | struct snd_soc_dapm_widget *w; | |
2315 | ||
97c866de JN |
2316 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2317 | if (w->dapm != dapm) | |
2318 | continue; | |
da34183e | 2319 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
2320 | dev_dbg(w->dapm->dev, |
2321 | "dapm: force enable pin %s\n", pin); | |
da34183e MB |
2322 | w->connected = 1; |
2323 | w->force = 1; | |
2324 | return 0; | |
2325 | } | |
2326 | } | |
2327 | ||
f7d41ae8 | 2328 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
da34183e MB |
2329 | return -EINVAL; |
2330 | } | |
2331 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2332 | ||
a5302181 LG |
2333 | /** |
2334 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2335 | * @dapm: DAPM context |
a5302181 LG |
2336 | * @pin: pin name |
2337 | * | |
74b8f955 | 2338 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2339 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2340 | * do any widget power switching. | |
2341 | */ | |
ce6120cc LG |
2342 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2343 | const char *pin) | |
a5302181 | 2344 | { |
ce6120cc | 2345 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2346 | } |
a5302181 | 2347 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2348 | |
5817b52a MB |
2349 | /** |
2350 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2351 | * @dapm: DAPM context |
5817b52a MB |
2352 | * @pin: pin name |
2353 | * | |
2354 | * Marks the specified pin as being not connected, disabling it along | |
2355 | * any parent or child widgets. At present this is identical to | |
2356 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2357 | * additional things such as disabling controls which only affect | |
2358 | * paths through the pin. | |
2359 | * | |
2360 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2361 | * do any widget power switching. | |
2362 | */ | |
ce6120cc | 2363 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2364 | { |
ce6120cc | 2365 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2366 | } |
2367 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2368 | ||
eeec12bf | 2369 | /** |
a5302181 | 2370 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2371 | * @dapm: DAPM context |
a5302181 | 2372 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2373 | * |
a5302181 | 2374 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2375 | * |
a5302181 | 2376 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2377 | */ |
ce6120cc LG |
2378 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2379 | const char *pin) | |
eeec12bf GG |
2380 | { |
2381 | struct snd_soc_dapm_widget *w; | |
2382 | ||
97c866de JN |
2383 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2384 | if (w->dapm != dapm) | |
2385 | continue; | |
a5302181 | 2386 | if (!strcmp(w->name, pin)) |
eeec12bf GG |
2387 | return w->connected; |
2388 | } | |
2389 | ||
2390 | return 0; | |
2391 | } | |
a5302181 | 2392 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2393 | |
1547aba9 MB |
2394 | /** |
2395 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2396 | * @dapm: DAPM context |
1547aba9 MB |
2397 | * @pin: audio signal pin endpoint (or start point) |
2398 | * | |
2399 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2400 | * system is disabled a path between two endpoints flagged as ignoring | |
2401 | * suspend will not be disabled. The path must already be enabled via | |
2402 | * normal means at suspend time, it will not be turned on if it was not | |
2403 | * already enabled. | |
2404 | */ | |
ce6120cc LG |
2405 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2406 | const char *pin) | |
1547aba9 MB |
2407 | { |
2408 | struct snd_soc_dapm_widget *w; | |
2409 | ||
97c866de JN |
2410 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2411 | if (w->dapm != dapm) | |
2412 | continue; | |
1547aba9 MB |
2413 | if (!strcmp(w->name, pin)) { |
2414 | w->ignore_suspend = 1; | |
2415 | return 0; | |
2416 | } | |
2417 | } | |
2418 | ||
f7d41ae8 | 2419 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
1547aba9 MB |
2420 | return -EINVAL; |
2421 | } | |
2422 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2423 | ||
2b97eabc RP |
2424 | /** |
2425 | * snd_soc_dapm_free - free dapm resources | |
f0fba2ad | 2426 | * @card: SoC device |
2b97eabc RP |
2427 | * |
2428 | * Free all dapm widgets and resources. | |
2429 | */ | |
ce6120cc | 2430 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2431 | { |
ce6120cc LG |
2432 | snd_soc_dapm_sys_remove(dapm->dev); |
2433 | dapm_free_widgets(dapm); | |
7be31be8 | 2434 | list_del(&dapm->list); |
2b97eabc RP |
2435 | } |
2436 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2437 | ||
ce6120cc | 2438 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2439 | { |
51737470 MB |
2440 | struct snd_soc_dapm_widget *w; |
2441 | LIST_HEAD(down_list); | |
2442 | int powerdown = 0; | |
2443 | ||
97c866de JN |
2444 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2445 | if (w->dapm != dapm) | |
2446 | continue; | |
51737470 | 2447 | if (w->power) { |
828a842f | 2448 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 2449 | w->power = 0; |
51737470 MB |
2450 | powerdown = 1; |
2451 | } | |
2452 | } | |
2453 | ||
2454 | /* If there were no widgets to power down we're already in | |
2455 | * standby. | |
2456 | */ | |
2457 | if (powerdown) { | |
ed5a4c47 | 2458 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE); |
828a842f | 2459 | dapm_seq_run(dapm, &down_list, 0, false); |
ed5a4c47 | 2460 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY); |
51737470 | 2461 | } |
f0fba2ad LG |
2462 | } |
2463 | ||
2464 | /* | |
2465 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2466 | */ | |
2467 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2468 | { | |
2469 | struct snd_soc_codec *codec; | |
2470 | ||
ce6120cc LG |
2471 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2472 | soc_dapm_shutdown_codec(&codec->dapm); | |
ed5a4c47 | 2473 | snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF); |
ce6120cc | 2474 | } |
51737470 MB |
2475 | } |
2476 | ||
2b97eabc | 2477 | /* Module information */ |
d331124d | 2478 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2479 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2480 | MODULE_LICENSE("GPL"); |