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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> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/pm.h> | |
37 | #include <linux/bitops.h> | |
38 | #include <linux/platform_device.h> | |
39 | #include <linux/jiffies.h> | |
20496ff3 | 40 | #include <linux/debugfs.h> |
5a0e3ad6 | 41 | #include <linux/slab.h> |
2b97eabc RP |
42 | #include <sound/core.h> |
43 | #include <sound/pcm.h> | |
44 | #include <sound/pcm_params.h> | |
ce6120cc | 45 | #include <sound/soc.h> |
2b97eabc RP |
46 | #include <sound/soc-dapm.h> |
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, | |
60 | [snd_soc_dapm_value_mux] = 5, | |
61 | [snd_soc_dapm_dac] = 6, | |
62 | [snd_soc_dapm_mixer] = 7, | |
63 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
64 | [snd_soc_dapm_pga] = 8, | |
65 | [snd_soc_dapm_adc] = 9, | |
66 | [snd_soc_dapm_hp] = 10, | |
67 | [snd_soc_dapm_spk] = 10, | |
68 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 69 | }; |
ca9c1aae | 70 | |
2b97eabc | 71 | static int dapm_down_seq[] = { |
38357ab2 MB |
72 | [snd_soc_dapm_pre] = 0, |
73 | [snd_soc_dapm_adc] = 1, | |
74 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 75 | [snd_soc_dapm_spk] = 2, |
38357ab2 MB |
76 | [snd_soc_dapm_pga] = 4, |
77 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
78 | [snd_soc_dapm_mixer] = 5, |
79 | [snd_soc_dapm_dac] = 6, | |
80 | [snd_soc_dapm_mic] = 7, | |
81 | [snd_soc_dapm_micbias] = 8, | |
82 | [snd_soc_dapm_mux] = 9, | |
83 | [snd_soc_dapm_value_mux] = 9, | |
010ff262 MB |
84 | [snd_soc_dapm_aif_in] = 10, |
85 | [snd_soc_dapm_aif_out] = 10, | |
86 | [snd_soc_dapm_supply] = 11, | |
87 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
88 | }; |
89 | ||
12ef193d | 90 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
91 | { |
92 | if (pop_time) | |
93 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
94 | } | |
95 | ||
fd8d3bc0 | 96 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
97 | { |
98 | va_list args; | |
fd8d3bc0 | 99 | char *buf; |
15e4c72f | 100 | |
fd8d3bc0 JN |
101 | if (!pop_time) |
102 | return; | |
15e4c72f | 103 | |
fd8d3bc0 JN |
104 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
105 | if (buf == NULL) | |
106 | return; | |
15e4c72f | 107 | |
fd8d3bc0 JN |
108 | va_start(args, fmt); |
109 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
110 | dev_info(dev, buf); | |
15e4c72f | 111 | va_end(args); |
fd8d3bc0 JN |
112 | |
113 | kfree(buf); | |
15e4c72f MB |
114 | } |
115 | ||
2b97eabc | 116 | /* create a new dapm widget */ |
88cb4290 | 117 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
118 | const struct snd_soc_dapm_widget *_widget) |
119 | { | |
88cb4290 | 120 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
121 | } |
122 | ||
452c5eaa MB |
123 | /** |
124 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
f0fba2ad | 125 | * @card: audio device |
452c5eaa MB |
126 | * @level: level to configure |
127 | * | |
128 | * Configure the bias (power) levels for the SoC audio device. | |
129 | * | |
130 | * Returns 0 for success else error. | |
131 | */ | |
f0fba2ad | 132 | static int snd_soc_dapm_set_bias_level(struct snd_soc_card *card, |
ce6120cc LG |
133 | struct snd_soc_dapm_context *dapm, |
134 | enum snd_soc_bias_level level) | |
452c5eaa | 135 | { |
452c5eaa MB |
136 | int ret = 0; |
137 | ||
f83fba8b MB |
138 | switch (level) { |
139 | case SND_SOC_BIAS_ON: | |
ce6120cc | 140 | dev_dbg(dapm->dev, "Setting full bias\n"); |
f83fba8b MB |
141 | break; |
142 | case SND_SOC_BIAS_PREPARE: | |
ce6120cc | 143 | dev_dbg(dapm->dev, "Setting bias prepare\n"); |
f83fba8b MB |
144 | break; |
145 | case SND_SOC_BIAS_STANDBY: | |
ce6120cc | 146 | dev_dbg(dapm->dev, "Setting standby bias\n"); |
f83fba8b MB |
147 | break; |
148 | case SND_SOC_BIAS_OFF: | |
ce6120cc | 149 | dev_dbg(dapm->dev, "Setting bias off\n"); |
f83fba8b MB |
150 | break; |
151 | default: | |
ce6120cc | 152 | dev_err(dapm->dev, "Setting invalid bias %d\n", level); |
f83fba8b MB |
153 | return -EINVAL; |
154 | } | |
155 | ||
84e90930 MB |
156 | trace_snd_soc_bias_level_start(card, level); |
157 | ||
f0fba2ad | 158 | if (card && card->set_bias_level) |
452c5eaa | 159 | ret = card->set_bias_level(card, level); |
474e09ca | 160 | if (ret == 0) { |
ce6120cc LG |
161 | if (dapm->codec && dapm->codec->driver->set_bias_level) |
162 | ret = dapm->codec->driver->set_bias_level(dapm->codec, level); | |
474e09ca | 163 | else |
ce6120cc | 164 | dapm->bias_level = level; |
474e09ca | 165 | } |
452c5eaa | 166 | |
84e90930 MB |
167 | trace_snd_soc_bias_level_done(card, level); |
168 | ||
452c5eaa MB |
169 | return ret; |
170 | } | |
171 | ||
2b97eabc RP |
172 | /* set up initial codec paths */ |
173 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
174 | struct snd_soc_dapm_path *p, int i) | |
175 | { | |
176 | switch (w->id) { | |
177 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
178 | case snd_soc_dapm_mixer: |
179 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 180 | int val; |
4eaa9819 JS |
181 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
182 | w->kcontrols[i].private_value; | |
815ecf8d JS |
183 | unsigned int reg = mc->reg; |
184 | unsigned int shift = mc->shift; | |
4eaa9819 | 185 | int max = mc->max; |
815ecf8d JS |
186 | unsigned int mask = (1 << fls(max)) - 1; |
187 | unsigned int invert = mc->invert; | |
2b97eabc RP |
188 | |
189 | val = snd_soc_read(w->codec, reg); | |
190 | val = (val >> shift) & mask; | |
191 | ||
192 | if ((invert && !val) || (!invert && val)) | |
193 | p->connect = 1; | |
194 | else | |
195 | p->connect = 0; | |
196 | } | |
197 | break; | |
198 | case snd_soc_dapm_mux: { | |
199 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; | |
200 | int val, item, bitmask; | |
201 | ||
f8ba0b7b | 202 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
203 | ; |
204 | val = snd_soc_read(w->codec, e->reg); | |
205 | item = (val >> e->shift_l) & (bitmask - 1); | |
206 | ||
207 | p->connect = 0; | |
f8ba0b7b | 208 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
209 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
210 | p->connect = 1; | |
211 | } | |
212 | } | |
213 | break; | |
2e72f8e3 | 214 | case snd_soc_dapm_value_mux: { |
74155556 | 215 | struct soc_enum *e = (struct soc_enum *) |
2e72f8e3 PU |
216 | w->kcontrols[i].private_value; |
217 | int val, item; | |
218 | ||
219 | val = snd_soc_read(w->codec, e->reg); | |
220 | val = (val >> e->shift_l) & e->mask; | |
221 | for (item = 0; item < e->max; item++) { | |
222 | if (val == e->values[item]) | |
223 | break; | |
224 | } | |
225 | ||
226 | p->connect = 0; | |
227 | for (i = 0; i < e->max; i++) { | |
228 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
229 | p->connect = 1; | |
230 | } | |
231 | } | |
232 | break; | |
2b97eabc RP |
233 | /* does not effect routing - always connected */ |
234 | case snd_soc_dapm_pga: | |
235 | case snd_soc_dapm_output: | |
236 | case snd_soc_dapm_adc: | |
237 | case snd_soc_dapm_input: | |
238 | case snd_soc_dapm_dac: | |
239 | case snd_soc_dapm_micbias: | |
240 | case snd_soc_dapm_vmid: | |
246d0a17 | 241 | case snd_soc_dapm_supply: |
010ff262 MB |
242 | case snd_soc_dapm_aif_in: |
243 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
244 | p->connect = 1; |
245 | break; | |
246 | /* does effect routing - dynamically connected */ | |
247 | case snd_soc_dapm_hp: | |
248 | case snd_soc_dapm_mic: | |
249 | case snd_soc_dapm_spk: | |
250 | case snd_soc_dapm_line: | |
251 | case snd_soc_dapm_pre: | |
252 | case snd_soc_dapm_post: | |
253 | p->connect = 0; | |
254 | break; | |
255 | } | |
256 | } | |
257 | ||
74b8f955 | 258 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 259 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
260 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
261 | struct snd_soc_dapm_path *path, const char *control_name, | |
262 | const struct snd_kcontrol_new *kcontrol) | |
263 | { | |
264 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
265 | int i; | |
266 | ||
f8ba0b7b | 267 | for (i = 0; i < e->max; i++) { |
2b97eabc | 268 | if (!(strcmp(control_name, e->texts[i]))) { |
ce6120cc | 269 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
270 | list_add(&path->list_sink, &dest->sources); |
271 | list_add(&path->list_source, &src->sinks); | |
272 | path->name = (char*)e->texts[i]; | |
273 | dapm_set_path_status(dest, path, 0); | |
274 | return 0; | |
275 | } | |
276 | } | |
277 | ||
278 | return -ENODEV; | |
279 | } | |
280 | ||
74b8f955 | 281 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 282 | static int dapm_connect_mixer(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 | { | |
286 | int i; | |
287 | ||
288 | /* search for mixer kcontrol */ | |
289 | for (i = 0; i < dest->num_kcontrols; i++) { | |
290 | if (!strcmp(control_name, dest->kcontrols[i].name)) { | |
ce6120cc | 291 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
292 | list_add(&path->list_sink, &dest->sources); |
293 | list_add(&path->list_source, &src->sinks); | |
294 | path->name = dest->kcontrols[i].name; | |
295 | dapm_set_path_status(dest, path, i); | |
296 | return 0; | |
297 | } | |
298 | } | |
299 | return -ENODEV; | |
300 | } | |
301 | ||
302 | /* update dapm codec register bits */ | |
303 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) | |
304 | { | |
305 | int change, power; | |
46f5822f | 306 | unsigned int old, new; |
2b97eabc | 307 | struct snd_soc_codec *codec = widget->codec; |
ce6120cc | 308 | struct snd_soc_dapm_context *dapm = widget->dapm; |
3a45b867 | 309 | struct snd_soc_card *card = dapm->card; |
2b97eabc RP |
310 | |
311 | /* check for valid widgets */ | |
312 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || | |
313 | widget->id == snd_soc_dapm_output || | |
314 | widget->id == snd_soc_dapm_hp || | |
315 | widget->id == snd_soc_dapm_mic || | |
316 | widget->id == snd_soc_dapm_line || | |
317 | widget->id == snd_soc_dapm_spk) | |
318 | return 0; | |
319 | ||
320 | power = widget->power; | |
321 | if (widget->invert) | |
322 | power = (power ? 0:1); | |
323 | ||
324 | old = snd_soc_read(codec, widget->reg); | |
325 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); | |
326 | ||
327 | change = old != new; | |
328 | if (change) { | |
fd8d3bc0 JN |
329 | pop_dbg(dapm->dev, card->pop_time, |
330 | "pop test %s : %s in %d ms\n", | |
12ef193d | 331 | widget->name, widget->power ? "on" : "off", |
3a45b867 JN |
332 | card->pop_time); |
333 | pop_wait(card->pop_time); | |
69224719 | 334 | snd_soc_write(codec, widget->reg, new); |
2b97eabc | 335 | } |
f7d41ae8 JN |
336 | dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg, |
337 | old, new, change); | |
2b97eabc RP |
338 | return change; |
339 | } | |
340 | ||
2b97eabc | 341 | /* create new dapm mixer control */ |
ce6120cc | 342 | static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
343 | struct snd_soc_dapm_widget *w) |
344 | { | |
345 | int i, ret = 0; | |
219b93f5 | 346 | size_t name_len; |
2b97eabc | 347 | struct snd_soc_dapm_path *path; |
ce6120cc | 348 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
349 | |
350 | /* add kcontrol */ | |
351 | for (i = 0; i < w->num_kcontrols; i++) { | |
352 | ||
353 | /* match name */ | |
354 | list_for_each_entry(path, &w->sources, list_sink) { | |
355 | ||
356 | /* mixer/mux paths name must match control name */ | |
357 | if (path->name != (char*)w->kcontrols[i].name) | |
358 | continue; | |
359 | ||
ca9c1aae IM |
360 | /* add dapm control with long name. |
361 | * for dapm_mixer this is the concatenation of the | |
362 | * mixer and kcontrol name. | |
363 | * for dapm_mixer_named_ctl this is simply the | |
364 | * kcontrol name. | |
365 | */ | |
366 | name_len = strlen(w->kcontrols[i].name) + 1; | |
07495f3e | 367 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
368 | name_len += 1 + strlen(w->name); |
369 | ||
219b93f5 | 370 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 371 | |
2b97eabc RP |
372 | if (path->long_name == NULL) |
373 | return -ENOMEM; | |
374 | ||
ca9c1aae | 375 | switch (w->id) { |
ca9c1aae IM |
376 | default: |
377 | snprintf(path->long_name, name_len, "%s %s", | |
378 | w->name, w->kcontrols[i].name); | |
07495f3e | 379 | break; |
ca9c1aae IM |
380 | case snd_soc_dapm_mixer_named_ctl: |
381 | snprintf(path->long_name, name_len, "%s", | |
382 | w->kcontrols[i].name); | |
07495f3e | 383 | break; |
ca9c1aae IM |
384 | } |
385 | ||
219b93f5 MB |
386 | path->long_name[name_len - 1] = '\0'; |
387 | ||
2b97eabc RP |
388 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
389 | path->long_name); | |
ce6120cc | 390 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 391 | if (ret < 0) { |
f7d41ae8 JN |
392 | dev_err(dapm->dev, |
393 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
394 | path->long_name, ret); | |
2b97eabc RP |
395 | kfree(path->long_name); |
396 | path->long_name = NULL; | |
397 | return ret; | |
398 | } | |
399 | } | |
400 | } | |
401 | return ret; | |
402 | } | |
403 | ||
404 | /* create new dapm mux control */ | |
ce6120cc | 405 | static int dapm_new_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
406 | struct snd_soc_dapm_widget *w) |
407 | { | |
408 | struct snd_soc_dapm_path *path = NULL; | |
409 | struct snd_kcontrol *kcontrol; | |
ce6120cc | 410 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
411 | int ret = 0; |
412 | ||
413 | if (!w->num_kcontrols) { | |
f7d41ae8 | 414 | dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name); |
2b97eabc RP |
415 | return -EINVAL; |
416 | } | |
417 | ||
418 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); | |
ce6120cc LG |
419 | ret = snd_ctl_add(card, kcontrol); |
420 | ||
2b97eabc RP |
421 | if (ret < 0) |
422 | goto err; | |
423 | ||
424 | list_for_each_entry(path, &w->sources, list_sink) | |
425 | path->kcontrol = kcontrol; | |
426 | ||
427 | return ret; | |
428 | ||
429 | err: | |
f7d41ae8 | 430 | dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name); |
2b97eabc RP |
431 | return ret; |
432 | } | |
433 | ||
434 | /* create new dapm volume control */ | |
ce6120cc | 435 | static int dapm_new_pga(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
436 | struct snd_soc_dapm_widget *w) |
437 | { | |
a6c65736 | 438 | if (w->num_kcontrols) |
f7d41ae8 JN |
439 | dev_err(w->dapm->dev, |
440 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 441 | |
a6c65736 | 442 | return 0; |
2b97eabc RP |
443 | } |
444 | ||
445 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 446 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
447 | { |
448 | struct snd_soc_dapm_path *p; | |
449 | ||
ce6120cc | 450 | list_for_each_entry(p, &dapm->paths, list) |
2b97eabc RP |
451 | p->walked = 0; |
452 | } | |
453 | ||
9949788b MB |
454 | /* We implement power down on suspend by checking the power state of |
455 | * the ALSA card - when we are suspending the ALSA state for the card | |
456 | * is set to D3. | |
457 | */ | |
458 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
459 | { | |
ce6120cc | 460 | int level = snd_power_get_state(widget->dapm->codec->card->snd_card); |
9949788b | 461 | |
f0fba2ad | 462 | switch (level) { |
9949788b MB |
463 | case SNDRV_CTL_POWER_D3hot: |
464 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 465 | if (widget->ignore_suspend) |
f7d41ae8 JN |
466 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
467 | widget->name); | |
1547aba9 | 468 | return widget->ignore_suspend; |
9949788b MB |
469 | default: |
470 | return 1; | |
471 | } | |
472 | } | |
473 | ||
2b97eabc RP |
474 | /* |
475 | * Recursively check for a completed path to an active or physically connected | |
476 | * output widget. Returns number of complete paths. | |
477 | */ | |
478 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
479 | { | |
480 | struct snd_soc_dapm_path *path; | |
481 | int con = 0; | |
482 | ||
246d0a17 MB |
483 | if (widget->id == snd_soc_dapm_supply) |
484 | return 0; | |
485 | ||
010ff262 MB |
486 | switch (widget->id) { |
487 | case snd_soc_dapm_adc: | |
488 | case snd_soc_dapm_aif_out: | |
489 | if (widget->active) | |
9949788b | 490 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
491 | default: |
492 | break; | |
493 | } | |
2b97eabc RP |
494 | |
495 | if (widget->connected) { | |
496 | /* connected pin ? */ | |
497 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 498 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
499 | |
500 | /* connected jack or spk ? */ | |
501 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 502 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 503 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
504 | } |
505 | ||
506 | list_for_each_entry(path, &widget->sinks, list_source) { | |
507 | if (path->walked) | |
508 | continue; | |
509 | ||
510 | if (path->sink && path->connect) { | |
511 | path->walked = 1; | |
512 | con += is_connected_output_ep(path->sink); | |
513 | } | |
514 | } | |
515 | ||
516 | return con; | |
517 | } | |
518 | ||
519 | /* | |
520 | * Recursively check for a completed path to an active or physically connected | |
521 | * input widget. Returns number of complete paths. | |
522 | */ | |
523 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
524 | { | |
525 | struct snd_soc_dapm_path *path; | |
526 | int con = 0; | |
527 | ||
246d0a17 MB |
528 | if (widget->id == snd_soc_dapm_supply) |
529 | return 0; | |
530 | ||
2b97eabc | 531 | /* active stream ? */ |
010ff262 MB |
532 | switch (widget->id) { |
533 | case snd_soc_dapm_dac: | |
534 | case snd_soc_dapm_aif_in: | |
535 | if (widget->active) | |
9949788b | 536 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
537 | default: |
538 | break; | |
539 | } | |
2b97eabc RP |
540 | |
541 | if (widget->connected) { | |
542 | /* connected pin ? */ | |
543 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 544 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
545 | |
546 | /* connected VMID/Bias for lower pops */ | |
547 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 548 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
549 | |
550 | /* connected jack ? */ | |
eaeae5d9 PU |
551 | if (widget->id == snd_soc_dapm_mic || |
552 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 553 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
554 | } |
555 | ||
556 | list_for_each_entry(path, &widget->sources, list_sink) { | |
557 | if (path->walked) | |
558 | continue; | |
559 | ||
560 | if (path->source && path->connect) { | |
561 | path->walked = 1; | |
562 | con += is_connected_input_ep(path->source); | |
563 | } | |
564 | } | |
565 | ||
566 | return con; | |
567 | } | |
568 | ||
e2be2ccf JN |
569 | /* |
570 | * Handler for generic register modifier widget. | |
571 | */ | |
572 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
573 | struct snd_kcontrol *kcontrol, int event) | |
574 | { | |
575 | unsigned int val; | |
576 | ||
577 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
578 | val = w->on_val; | |
579 | else | |
580 | val = w->off_val; | |
581 | ||
582 | snd_soc_update_bits(w->codec, -(w->reg + 1), | |
583 | w->mask << w->shift, val << w->shift); | |
584 | ||
585 | return 0; | |
586 | } | |
11589418 | 587 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 588 | |
025756ec MB |
589 | /* Standard power change method, used to apply power changes to most |
590 | * widgets. | |
591 | */ | |
592 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) | |
593 | { | |
594 | int ret; | |
595 | ||
596 | /* call any power change event handlers */ | |
597 | if (w->event) | |
f7d41ae8 | 598 | dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n", |
025756ec MB |
599 | w->power ? "on" : "off", |
600 | w->name, w->event_flags); | |
601 | ||
602 | /* power up pre event */ | |
603 | if (w->power && w->event && | |
604 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { | |
605 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); | |
606 | if (ret < 0) | |
607 | return ret; | |
608 | } | |
609 | ||
610 | /* power down pre event */ | |
611 | if (!w->power && w->event && | |
612 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { | |
613 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); | |
614 | if (ret < 0) | |
615 | return ret; | |
616 | } | |
617 | ||
025756ec MB |
618 | dapm_update_bits(w); |
619 | ||
025756ec MB |
620 | /* power up post event */ |
621 | if (w->power && w->event && | |
622 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { | |
623 | ret = w->event(w, | |
624 | NULL, SND_SOC_DAPM_POST_PMU); | |
625 | if (ret < 0) | |
626 | return ret; | |
627 | } | |
628 | ||
629 | /* power down post event */ | |
630 | if (!w->power && w->event && | |
631 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { | |
632 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); | |
633 | if (ret < 0) | |
634 | return ret; | |
635 | } | |
636 | ||
637 | return 0; | |
638 | } | |
639 | ||
cd0f2d47 MB |
640 | /* Generic check to see if a widget should be powered. |
641 | */ | |
642 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
643 | { | |
644 | int in, out; | |
645 | ||
646 | in = is_connected_input_ep(w); | |
ce6120cc | 647 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 648 | out = is_connected_output_ep(w); |
ce6120cc | 649 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
650 | return out != 0 && in != 0; |
651 | } | |
652 | ||
6ea31b9f MB |
653 | /* Check to see if an ADC has power */ |
654 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
655 | { | |
656 | int in; | |
657 | ||
658 | if (w->active) { | |
659 | in = is_connected_input_ep(w); | |
ce6120cc | 660 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
661 | return in != 0; |
662 | } else { | |
663 | return dapm_generic_check_power(w); | |
664 | } | |
665 | } | |
666 | ||
667 | /* Check to see if a DAC has power */ | |
668 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
669 | { | |
670 | int out; | |
671 | ||
672 | if (w->active) { | |
673 | out = is_connected_output_ep(w); | |
ce6120cc | 674 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
675 | return out != 0; |
676 | } else { | |
677 | return dapm_generic_check_power(w); | |
678 | } | |
679 | } | |
680 | ||
246d0a17 MB |
681 | /* Check to see if a power supply is needed */ |
682 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
683 | { | |
684 | struct snd_soc_dapm_path *path; | |
685 | int power = 0; | |
686 | ||
687 | /* Check if one of our outputs is connected */ | |
688 | list_for_each_entry(path, &w->sinks, list_source) { | |
215edda3 MB |
689 | if (path->connected && |
690 | !path->connected(path->source, path->sink)) | |
691 | continue; | |
692 | ||
246d0a17 MB |
693 | if (path->sink && path->sink->power_check && |
694 | path->sink->power_check(path->sink)) { | |
695 | power = 1; | |
696 | break; | |
697 | } | |
698 | } | |
699 | ||
ce6120cc | 700 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
701 | |
702 | return power; | |
703 | } | |
704 | ||
38357ab2 MB |
705 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
706 | struct snd_soc_dapm_widget *b, | |
707 | int sort[]) | |
42aa3418 | 708 | { |
38357ab2 MB |
709 | if (sort[a->id] != sort[b->id]) |
710 | return sort[a->id] - sort[b->id]; | |
b22ead2a MB |
711 | if (a->reg != b->reg) |
712 | return a->reg - b->reg; | |
bcbb2433 MB |
713 | if (a->codec != b->codec) |
714 | return (unsigned long)a->codec - (unsigned long)b->codec; | |
42aa3418 | 715 | |
38357ab2 MB |
716 | return 0; |
717 | } | |
42aa3418 | 718 | |
38357ab2 MB |
719 | /* Insert a widget in order into a DAPM power sequence. */ |
720 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
721 | struct list_head *list, | |
722 | int sort[]) | |
723 | { | |
724 | struct snd_soc_dapm_widget *w; | |
725 | ||
726 | list_for_each_entry(w, list, power_list) | |
727 | if (dapm_seq_compare(new_widget, w, sort) < 0) { | |
728 | list_add_tail(&new_widget->power_list, &w->power_list); | |
729 | return; | |
730 | } | |
731 | ||
732 | list_add_tail(&new_widget->power_list, list); | |
733 | } | |
734 | ||
68f89ad8 MB |
735 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
736 | struct snd_soc_dapm_widget *w, int event) | |
737 | { | |
738 | struct snd_soc_card *card = dapm->card; | |
739 | const char *ev_name; | |
740 | int power, ret; | |
741 | ||
742 | switch (event) { | |
743 | case SND_SOC_DAPM_PRE_PMU: | |
744 | ev_name = "PRE_PMU"; | |
745 | power = 1; | |
746 | break; | |
747 | case SND_SOC_DAPM_POST_PMU: | |
748 | ev_name = "POST_PMU"; | |
749 | power = 1; | |
750 | break; | |
751 | case SND_SOC_DAPM_PRE_PMD: | |
752 | ev_name = "PRE_PMD"; | |
753 | power = 0; | |
754 | break; | |
755 | case SND_SOC_DAPM_POST_PMD: | |
756 | ev_name = "POST_PMD"; | |
757 | power = 0; | |
758 | break; | |
759 | default: | |
760 | BUG(); | |
761 | return; | |
762 | } | |
763 | ||
764 | if (w->power != power) | |
765 | return; | |
766 | ||
767 | if (w->event && (w->event_flags & event)) { | |
768 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
769 | w->name, ev_name); | |
84e90930 | 770 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 771 | ret = w->event(w, NULL, event); |
84e90930 | 772 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
773 | if (ret < 0) |
774 | pr_err("%s: %s event failed: %d\n", | |
775 | ev_name, w->name, ret); | |
776 | } | |
777 | } | |
778 | ||
b22ead2a | 779 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 780 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 781 | struct list_head *pending) |
163cac06 | 782 | { |
3a45b867 | 783 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
784 | struct snd_soc_dapm_widget *w; |
785 | int reg, power; | |
b22ead2a MB |
786 | unsigned int value = 0; |
787 | unsigned int mask = 0; | |
788 | unsigned int cur_mask; | |
789 | ||
790 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
791 | power_list)->reg; | |
792 | ||
793 | list_for_each_entry(w, pending, power_list) { | |
794 | cur_mask = 1 << w->shift; | |
795 | BUG_ON(reg != w->reg); | |
796 | ||
797 | if (w->invert) | |
798 | power = !w->power; | |
799 | else | |
800 | power = w->power; | |
801 | ||
802 | mask |= cur_mask; | |
803 | if (power) | |
804 | value |= cur_mask; | |
805 | ||
fd8d3bc0 | 806 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
807 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
808 | w->name, reg, value, mask); | |
81628103 | 809 | |
68f89ad8 MB |
810 | /* Check for events */ |
811 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
812 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
813 | } |
814 | ||
815 | if (reg >= 0) { | |
fd8d3bc0 | 816 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 817 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
818 | value, mask, reg, card->pop_time); |
819 | pop_wait(card->pop_time); | |
ce6120cc | 820 | snd_soc_update_bits(dapm->codec, reg, mask, value); |
b22ead2a MB |
821 | } |
822 | ||
81628103 | 823 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
824 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
825 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 826 | } |
b22ead2a | 827 | } |
42aa3418 | 828 | |
b22ead2a MB |
829 | /* Apply a DAPM power sequence. |
830 | * | |
831 | * We walk over a pre-sorted list of widgets to apply power to. In | |
832 | * order to minimise the number of writes to the device required | |
833 | * multiple widgets will be updated in a single write where possible. | |
834 | * Currently anything that requires more than a single write is not | |
835 | * handled. | |
836 | */ | |
ce6120cc LG |
837 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
838 | struct list_head *list, int event, int sort[]) | |
b22ead2a MB |
839 | { |
840 | struct snd_soc_dapm_widget *w, *n; | |
841 | LIST_HEAD(pending); | |
842 | int cur_sort = -1; | |
843 | int cur_reg = SND_SOC_NOPM; | |
163cac06 MB |
844 | int ret; |
845 | ||
b22ead2a MB |
846 | list_for_each_entry_safe(w, n, list, power_list) { |
847 | ret = 0; | |
848 | ||
849 | /* Do we need to apply any queued changes? */ | |
850 | if (sort[w->id] != cur_sort || w->reg != cur_reg) { | |
851 | if (!list_empty(&pending)) | |
ce6120cc | 852 | dapm_seq_run_coalesced(dapm, &pending); |
b22ead2a MB |
853 | |
854 | INIT_LIST_HEAD(&pending); | |
855 | cur_sort = -1; | |
856 | cur_reg = SND_SOC_NOPM; | |
857 | } | |
858 | ||
163cac06 MB |
859 | switch (w->id) { |
860 | case snd_soc_dapm_pre: | |
861 | if (!w->event) | |
b22ead2a MB |
862 | list_for_each_entry_safe_continue(w, n, list, |
863 | power_list); | |
163cac06 | 864 | |
b22ead2a | 865 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
866 | ret = w->event(w, |
867 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 868 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
869 | ret = w->event(w, |
870 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
871 | break; |
872 | ||
873 | case snd_soc_dapm_post: | |
874 | if (!w->event) | |
b22ead2a MB |
875 | list_for_each_entry_safe_continue(w, n, list, |
876 | power_list); | |
163cac06 | 877 | |
b22ead2a | 878 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
879 | ret = w->event(w, |
880 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 881 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
882 | ret = w->event(w, |
883 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
884 | break; |
885 | ||
b22ead2a MB |
886 | case snd_soc_dapm_input: |
887 | case snd_soc_dapm_output: | |
888 | case snd_soc_dapm_hp: | |
889 | case snd_soc_dapm_mic: | |
890 | case snd_soc_dapm_line: | |
891 | case snd_soc_dapm_spk: | |
892 | /* No register support currently */ | |
163cac06 | 893 | ret = dapm_generic_apply_power(w); |
163cac06 | 894 | break; |
b22ead2a MB |
895 | |
896 | default: | |
81628103 MB |
897 | /* Queue it up for application */ |
898 | cur_sort = sort[w->id]; | |
899 | cur_reg = w->reg; | |
900 | list_move(&w->power_list, &pending); | |
901 | break; | |
163cac06 | 902 | } |
b22ead2a MB |
903 | |
904 | if (ret < 0) | |
f7d41ae8 JN |
905 | dev_err(w->dapm->dev, |
906 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 907 | } |
b22ead2a MB |
908 | |
909 | if (!list_empty(&pending)) | |
ce6120cc | 910 | dapm_seq_run_coalesced(dapm, &pending); |
42aa3418 MB |
911 | } |
912 | ||
2b97eabc RP |
913 | /* |
914 | * Scan each dapm widget for complete audio path. | |
915 | * A complete path is a route that has valid endpoints i.e.:- | |
916 | * | |
917 | * o DAC to output pin. | |
918 | * o Input Pin to ADC. | |
919 | * o Input pin to Output pin (bypass, sidetone) | |
920 | * o DAC to ADC (loopback). | |
921 | */ | |
ce6120cc | 922 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 923 | { |
ce6120cc | 924 | struct snd_soc_card *card = dapm->codec->card; |
2b97eabc | 925 | struct snd_soc_dapm_widget *w; |
291f3bbc MB |
926 | LIST_HEAD(up_list); |
927 | LIST_HEAD(down_list); | |
6d3ddc81 | 928 | int ret = 0; |
38357ab2 | 929 | int power; |
452c5eaa | 930 | int sys_power = 0; |
6d3ddc81 | 931 | |
84e90930 MB |
932 | trace_snd_soc_dapm_start(card); |
933 | ||
6d3ddc81 MB |
934 | /* Check which widgets we need to power and store them in |
935 | * lists indicating if they should be powered up or down. | |
936 | */ | |
ce6120cc | 937 | list_for_each_entry(w, &dapm->widgets, list) { |
6d3ddc81 MB |
938 | switch (w->id) { |
939 | case snd_soc_dapm_pre: | |
291f3bbc | 940 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
941 | break; |
942 | case snd_soc_dapm_post: | |
291f3bbc | 943 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 MB |
944 | break; |
945 | ||
946 | default: | |
947 | if (!w->power_check) | |
948 | continue; | |
949 | ||
9949788b | 950 | if (!w->force) |
50b6bce5 | 951 | power = w->power_check(w); |
9949788b MB |
952 | else |
953 | power = 1; | |
954 | if (power) | |
955 | sys_power = 1; | |
452c5eaa | 956 | |
6d3ddc81 MB |
957 | if (w->power == power) |
958 | continue; | |
959 | ||
84e90930 MB |
960 | trace_snd_soc_dapm_widget_power(w, power); |
961 | ||
6d3ddc81 | 962 | if (power) |
291f3bbc | 963 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 | 964 | else |
291f3bbc | 965 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
966 | |
967 | w->power = power; | |
968 | break; | |
969 | } | |
2b97eabc RP |
970 | } |
971 | ||
b14b76a5 MB |
972 | /* If there are no DAPM widgets then try to figure out power from the |
973 | * event type. | |
974 | */ | |
ce6120cc | 975 | if (list_empty(&dapm->widgets)) { |
b14b76a5 MB |
976 | switch (event) { |
977 | case SND_SOC_DAPM_STREAM_START: | |
978 | case SND_SOC_DAPM_STREAM_RESUME: | |
979 | sys_power = 1; | |
980 | break; | |
50b6bce5 MB |
981 | case SND_SOC_DAPM_STREAM_SUSPEND: |
982 | sys_power = 0; | |
983 | break; | |
b14b76a5 | 984 | case SND_SOC_DAPM_STREAM_NOP: |
ce6120cc | 985 | switch (dapm->bias_level) { |
a96ca338 MB |
986 | case SND_SOC_BIAS_STANDBY: |
987 | case SND_SOC_BIAS_OFF: | |
988 | sys_power = 0; | |
989 | break; | |
990 | default: | |
991 | sys_power = 1; | |
992 | break; | |
993 | } | |
50b6bce5 | 994 | break; |
b14b76a5 MB |
995 | default: |
996 | break; | |
997 | } | |
998 | } | |
999 | ||
ce6120cc LG |
1000 | if (sys_power && dapm->bias_level == SND_SOC_BIAS_OFF) { |
1001 | ret = snd_soc_dapm_set_bias_level(card, dapm, | |
a96ca338 MB |
1002 | SND_SOC_BIAS_STANDBY); |
1003 | if (ret != 0) | |
f7d41ae8 JN |
1004 | dev_err(dapm->dev, |
1005 | "Failed to turn on bias: %d\n", ret); | |
a96ca338 MB |
1006 | } |
1007 | ||
452c5eaa | 1008 | /* If we're changing to all on or all off then prepare */ |
ce6120cc LG |
1009 | if ((sys_power && dapm->bias_level == SND_SOC_BIAS_STANDBY) || |
1010 | (!sys_power && dapm->bias_level == SND_SOC_BIAS_ON)) { | |
1011 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_PREPARE); | |
452c5eaa | 1012 | if (ret != 0) |
f7d41ae8 JN |
1013 | dev_err(dapm->dev, |
1014 | "Failed to prepare bias: %d\n", ret); | |
452c5eaa MB |
1015 | } |
1016 | ||
6d3ddc81 | 1017 | /* Power down widgets first; try to avoid amplifying pops. */ |
ce6120cc | 1018 | dapm_seq_run(dapm, &down_list, event, dapm_down_seq); |
2b97eabc | 1019 | |
6d3ddc81 | 1020 | /* Now power up. */ |
ce6120cc | 1021 | dapm_seq_run(dapm, &up_list, event, dapm_up_seq); |
2b97eabc | 1022 | |
452c5eaa | 1023 | /* If we just powered the last thing off drop to standby bias */ |
ce6120cc LG |
1024 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) { |
1025 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_STANDBY); | |
452c5eaa | 1026 | if (ret != 0) |
f7d41ae8 JN |
1027 | dev_err(dapm->dev, |
1028 | "Failed to apply standby bias: %d\n", ret); | |
452c5eaa MB |
1029 | } |
1030 | ||
a96ca338 | 1031 | /* If we're in standby and can support bias off then do that */ |
ce6120cc LG |
1032 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY && |
1033 | dapm->idle_bias_off) { | |
1034 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_OFF); | |
a96ca338 | 1035 | if (ret != 0) |
f7d41ae8 JN |
1036 | dev_err(dapm->dev, |
1037 | "Failed to turn off bias: %d\n", ret); | |
a96ca338 MB |
1038 | } |
1039 | ||
452c5eaa | 1040 | /* If we just powered up then move to active bias */ |
ce6120cc LG |
1041 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE && sys_power) { |
1042 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_ON); | |
452c5eaa | 1043 | if (ret != 0) |
f7d41ae8 JN |
1044 | dev_err(dapm->dev, |
1045 | "Failed to apply active bias: %d\n", ret); | |
452c5eaa MB |
1046 | } |
1047 | ||
fd8d3bc0 JN |
1048 | pop_dbg(dapm->dev, card->pop_time, |
1049 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1050 | pop_wait(card->pop_time); |
cb507e7e | 1051 | |
84e90930 MB |
1052 | trace_snd_soc_dapm_done(card); |
1053 | ||
42aa3418 | 1054 | return 0; |
2b97eabc RP |
1055 | } |
1056 | ||
79fb9387 MB |
1057 | #ifdef CONFIG_DEBUG_FS |
1058 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1059 | { | |
1060 | file->private_data = inode->i_private; | |
1061 | return 0; | |
1062 | } | |
1063 | ||
1064 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1065 | char __user *user_buf, | |
1066 | size_t count, loff_t *ppos) | |
1067 | { | |
1068 | struct snd_soc_dapm_widget *w = file->private_data; | |
1069 | char *buf; | |
1070 | int in, out; | |
1071 | ssize_t ret; | |
1072 | struct snd_soc_dapm_path *p = NULL; | |
1073 | ||
1074 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1075 | if (!buf) | |
1076 | return -ENOMEM; | |
1077 | ||
1078 | in = is_connected_input_ep(w); | |
ce6120cc | 1079 | dapm_clear_walk(w->dapm); |
79fb9387 | 1080 | out = is_connected_output_ep(w); |
ce6120cc | 1081 | dapm_clear_walk(w->dapm); |
79fb9387 | 1082 | |
d033c36a | 1083 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1084 | w->name, w->power ? "On" : "Off", in, out); |
1085 | ||
d033c36a MB |
1086 | if (w->reg >= 0) |
1087 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1088 | " - R%d(0x%x) bit %d", | |
1089 | w->reg, w->reg, w->shift); | |
1090 | ||
1091 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1092 | ||
3eef08ba MB |
1093 | if (w->sname) |
1094 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1095 | w->sname, | |
1096 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1097 | |
1098 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1099 | if (p->connected && !p->connected(w, p->sink)) |
1100 | continue; | |
1101 | ||
79fb9387 MB |
1102 | if (p->connect) |
1103 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1104 | " in %s %s\n", | |
1105 | p->name ? p->name : "static", | |
1106 | p->source->name); | |
1107 | } | |
1108 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1109 | if (p->connected && !p->connected(w, p->sink)) |
1110 | continue; | |
1111 | ||
79fb9387 MB |
1112 | if (p->connect) |
1113 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1114 | " out %s %s\n", | |
1115 | p->name ? p->name : "static", | |
1116 | p->sink->name); | |
1117 | } | |
1118 | ||
1119 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1120 | ||
1121 | kfree(buf); | |
1122 | return ret; | |
1123 | } | |
1124 | ||
1125 | static const struct file_operations dapm_widget_power_fops = { | |
1126 | .open = dapm_widget_power_open_file, | |
1127 | .read = dapm_widget_power_read_file, | |
6038f373 | 1128 | .llseek = default_llseek, |
79fb9387 MB |
1129 | }; |
1130 | ||
ce6120cc | 1131 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1132 | { |
1133 | struct snd_soc_dapm_widget *w; | |
1134 | struct dentry *d; | |
1135 | ||
ce6120cc | 1136 | if (!dapm->debugfs_dapm) |
79fb9387 MB |
1137 | return; |
1138 | ||
ce6120cc | 1139 | list_for_each_entry(w, &dapm->widgets, list) { |
79fb9387 MB |
1140 | if (!w->name) |
1141 | continue; | |
1142 | ||
1143 | d = debugfs_create_file(w->name, 0444, | |
ce6120cc | 1144 | dapm->debugfs_dapm, w, |
79fb9387 MB |
1145 | &dapm_widget_power_fops); |
1146 | if (!d) | |
f7d41ae8 JN |
1147 | dev_warn(w->dapm->dev, |
1148 | "ASoC: Failed to create %s debugfs file\n", | |
1149 | w->name); | |
79fb9387 MB |
1150 | } |
1151 | } | |
1152 | #else | |
ce6120cc | 1153 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1154 | { |
1155 | } | |
1156 | #endif | |
1157 | ||
2b97eabc | 1158 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1159 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1160 | struct snd_kcontrol *kcontrol, int change, |
1161 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1162 | { |
1163 | struct snd_soc_dapm_path *path; | |
1164 | int found = 0; | |
1165 | ||
eff317d0 PU |
1166 | if (widget->id != snd_soc_dapm_mux && |
1167 | widget->id != snd_soc_dapm_value_mux) | |
2b97eabc RP |
1168 | return -ENODEV; |
1169 | ||
3a65577d | 1170 | if (!change) |
2b97eabc RP |
1171 | return 0; |
1172 | ||
1173 | /* find dapm widget path assoc with kcontrol */ | |
ce6120cc | 1174 | list_for_each_entry(path, &widget->dapm->paths, list) { |
2b97eabc RP |
1175 | if (path->kcontrol != kcontrol) |
1176 | continue; | |
1177 | ||
cb01e2b9 | 1178 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1179 | continue; |
1180 | ||
1181 | found = 1; | |
1182 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1183 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1184 | path->connect = 1; /* new connection */ |
1185 | else | |
1186 | path->connect = 0; /* old connection must be powered down */ | |
1187 | } | |
1188 | ||
b91b8fa0 | 1189 | if (found) |
ce6120cc | 1190 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1191 | |
1192 | return 0; | |
1193 | } | |
2b97eabc | 1194 | |
1b075e3f | 1195 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1196 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1197 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1198 | { |
1199 | struct snd_soc_dapm_path *path; | |
1200 | int found = 0; | |
1201 | ||
1b075e3f | 1202 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1203 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1204 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1205 | return -ENODEV; |
1206 | ||
2b97eabc | 1207 | /* find dapm widget path assoc with kcontrol */ |
ce6120cc | 1208 | list_for_each_entry(path, &widget->dapm->paths, list) { |
2b97eabc RP |
1209 | if (path->kcontrol != kcontrol) |
1210 | continue; | |
1211 | ||
1212 | /* found, now check type */ | |
1213 | found = 1; | |
283375ce | 1214 | path->connect = connect; |
2b97eabc RP |
1215 | break; |
1216 | } | |
1217 | ||
b91b8fa0 | 1218 | if (found) |
ce6120cc | 1219 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1220 | |
1221 | return 0; | |
1222 | } | |
2b97eabc RP |
1223 | |
1224 | /* show dapm widget status in sys fs */ | |
1225 | static ssize_t dapm_widget_show(struct device *dev, | |
1226 | struct device_attribute *attr, char *buf) | |
1227 | { | |
f0fba2ad LG |
1228 | struct snd_soc_pcm_runtime *rtd = |
1229 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1230 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1231 | struct snd_soc_dapm_widget *w; |
1232 | int count = 0; | |
1233 | char *state = "not set"; | |
1234 | ||
ce6120cc | 1235 | list_for_each_entry(w, &codec->dapm.widgets, list) { |
2b97eabc RP |
1236 | |
1237 | /* only display widgets that burnm power */ | |
1238 | switch (w->id) { | |
1239 | case snd_soc_dapm_hp: | |
1240 | case snd_soc_dapm_mic: | |
1241 | case snd_soc_dapm_spk: | |
1242 | case snd_soc_dapm_line: | |
1243 | case snd_soc_dapm_micbias: | |
1244 | case snd_soc_dapm_dac: | |
1245 | case snd_soc_dapm_adc: | |
1246 | case snd_soc_dapm_pga: | |
1247 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1248 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1249 | case snd_soc_dapm_supply: |
2b97eabc RP |
1250 | if (w->name) |
1251 | count += sprintf(buf + count, "%s: %s\n", | |
1252 | w->name, w->power ? "On":"Off"); | |
1253 | break; | |
1254 | default: | |
1255 | break; | |
1256 | } | |
1257 | } | |
1258 | ||
ce6120cc | 1259 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1260 | case SND_SOC_BIAS_ON: |
1261 | state = "On"; | |
2b97eabc | 1262 | break; |
0be9898a MB |
1263 | case SND_SOC_BIAS_PREPARE: |
1264 | state = "Prepare"; | |
2b97eabc | 1265 | break; |
0be9898a MB |
1266 | case SND_SOC_BIAS_STANDBY: |
1267 | state = "Standby"; | |
2b97eabc | 1268 | break; |
0be9898a MB |
1269 | case SND_SOC_BIAS_OFF: |
1270 | state = "Off"; | |
2b97eabc RP |
1271 | break; |
1272 | } | |
1273 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1274 | ||
1275 | return count; | |
1276 | } | |
1277 | ||
1278 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1279 | ||
1280 | int snd_soc_dapm_sys_add(struct device *dev) | |
1281 | { | |
12ef193d | 1282 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1283 | } |
1284 | ||
1285 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1286 | { | |
aef90843 | 1287 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1288 | } |
1289 | ||
1290 | /* free all dapm widgets and resources */ | |
ce6120cc | 1291 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1292 | { |
1293 | struct snd_soc_dapm_widget *w, *next_w; | |
1294 | struct snd_soc_dapm_path *p, *next_p; | |
1295 | ||
ce6120cc | 1296 | list_for_each_entry_safe(w, next_w, &dapm->widgets, list) { |
2b97eabc | 1297 | list_del(&w->list); |
ead9b919 | 1298 | kfree(w->name); |
2b97eabc RP |
1299 | kfree(w); |
1300 | } | |
1301 | ||
ce6120cc | 1302 | list_for_each_entry_safe(p, next_p, &dapm->paths, list) { |
2b97eabc RP |
1303 | list_del(&p->list); |
1304 | kfree(p->long_name); | |
1305 | kfree(p); | |
1306 | } | |
1307 | } | |
1308 | ||
ce6120cc | 1309 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, |
1649923d | 1310 | const char *pin, int status) |
a5302181 LG |
1311 | { |
1312 | struct snd_soc_dapm_widget *w; | |
1313 | ||
ce6120cc | 1314 | list_for_each_entry(w, &dapm->widgets, list) { |
a5302181 | 1315 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
1316 | dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n", |
1317 | pin, status); | |
a5302181 | 1318 | w->connected = status; |
5b9e87cc MB |
1319 | /* Allow disabling of forced pins */ |
1320 | if (status == 0) | |
1321 | w->force = 0; | |
a5302181 LG |
1322 | return 0; |
1323 | } | |
1324 | } | |
1325 | ||
f7d41ae8 | 1326 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
a5302181 LG |
1327 | return -EINVAL; |
1328 | } | |
1329 | ||
2b97eabc | 1330 | /** |
a5302181 | 1331 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1332 | * @dapm: DAPM context |
2b97eabc RP |
1333 | * |
1334 | * Walks all dapm audio paths and powers widgets according to their | |
1335 | * stream or path usage. | |
1336 | * | |
1337 | * Returns 0 for success. | |
1338 | */ | |
ce6120cc | 1339 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1340 | { |
ce6120cc | 1341 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1342 | } |
a5302181 | 1343 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1344 | |
ce6120cc | 1345 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1346 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1347 | { |
1348 | struct snd_soc_dapm_path *path; | |
1349 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
ead9b919 | 1350 | const char *sink; |
215edda3 | 1351 | const char *control = route->control; |
ead9b919 JN |
1352 | const char *source; |
1353 | char prefixed_sink[80]; | |
1354 | char prefixed_source[80]; | |
2b97eabc RP |
1355 | int ret = 0; |
1356 | ||
ead9b919 JN |
1357 | if (dapm->codec->name_prefix) { |
1358 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
1359 | dapm->codec->name_prefix, route->sink); | |
1360 | sink = prefixed_sink; | |
1361 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1362 | dapm->codec->name_prefix, route->source); | |
1363 | source = prefixed_source; | |
1364 | } else { | |
1365 | sink = route->sink; | |
1366 | source = route->source; | |
1367 | } | |
1368 | ||
2b97eabc | 1369 | /* find src and dest widgets */ |
ce6120cc | 1370 | list_for_each_entry(w, &dapm->widgets, list) { |
2b97eabc RP |
1371 | |
1372 | if (!wsink && !(strcmp(w->name, sink))) { | |
1373 | wsink = w; | |
1374 | continue; | |
1375 | } | |
1376 | if (!wsource && !(strcmp(w->name, source))) { | |
1377 | wsource = w; | |
1378 | } | |
1379 | } | |
1380 | ||
1381 | if (wsource == NULL || wsink == NULL) | |
1382 | return -ENODEV; | |
1383 | ||
1384 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1385 | if (!path) | |
1386 | return -ENOMEM; | |
1387 | ||
1388 | path->source = wsource; | |
1389 | path->sink = wsink; | |
215edda3 | 1390 | path->connected = route->connected; |
2b97eabc RP |
1391 | INIT_LIST_HEAD(&path->list); |
1392 | INIT_LIST_HEAD(&path->list_source); | |
1393 | INIT_LIST_HEAD(&path->list_sink); | |
1394 | ||
1395 | /* check for external widgets */ | |
1396 | if (wsink->id == snd_soc_dapm_input) { | |
1397 | if (wsource->id == snd_soc_dapm_micbias || | |
1398 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1399 | wsource->id == snd_soc_dapm_line || |
1400 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1401 | wsink->ext = 1; |
1402 | } | |
1403 | if (wsource->id == snd_soc_dapm_output) { | |
1404 | if (wsink->id == snd_soc_dapm_spk || | |
1405 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1406 | wsink->id == snd_soc_dapm_line || |
1407 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1408 | wsource->ext = 1; |
1409 | } | |
1410 | ||
1411 | /* connect static paths */ | |
1412 | if (control == NULL) { | |
ce6120cc | 1413 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1414 | list_add(&path->list_sink, &wsink->sources); |
1415 | list_add(&path->list_source, &wsource->sinks); | |
1416 | path->connect = 1; | |
1417 | return 0; | |
1418 | } | |
1419 | ||
1420 | /* connect dynamic paths */ | |
1421 | switch(wsink->id) { | |
1422 | case snd_soc_dapm_adc: | |
1423 | case snd_soc_dapm_dac: | |
1424 | case snd_soc_dapm_pga: | |
1425 | case snd_soc_dapm_input: | |
1426 | case snd_soc_dapm_output: | |
1427 | case snd_soc_dapm_micbias: | |
1428 | case snd_soc_dapm_vmid: | |
1429 | case snd_soc_dapm_pre: | |
1430 | case snd_soc_dapm_post: | |
246d0a17 | 1431 | case snd_soc_dapm_supply: |
010ff262 MB |
1432 | case snd_soc_dapm_aif_in: |
1433 | case snd_soc_dapm_aif_out: | |
ce6120cc | 1434 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1435 | list_add(&path->list_sink, &wsink->sources); |
1436 | list_add(&path->list_source, &wsource->sinks); | |
1437 | path->connect = 1; | |
1438 | return 0; | |
1439 | case snd_soc_dapm_mux: | |
74155556 | 1440 | case snd_soc_dapm_value_mux: |
ce6120cc | 1441 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
2b97eabc RP |
1442 | &wsink->kcontrols[0]); |
1443 | if (ret != 0) | |
1444 | goto err; | |
1445 | break; | |
1446 | case snd_soc_dapm_switch: | |
1447 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1448 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1449 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1450 | if (ret != 0) |
1451 | goto err; | |
1452 | break; | |
1453 | case snd_soc_dapm_hp: | |
1454 | case snd_soc_dapm_mic: | |
1455 | case snd_soc_dapm_line: | |
1456 | case snd_soc_dapm_spk: | |
ce6120cc | 1457 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1458 | list_add(&path->list_sink, &wsink->sources); |
1459 | list_add(&path->list_source, &wsource->sinks); | |
1460 | path->connect = 0; | |
1461 | return 0; | |
1462 | } | |
1463 | return 0; | |
1464 | ||
1465 | err: | |
f7d41ae8 JN |
1466 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1467 | source, control, sink); | |
2b97eabc RP |
1468 | kfree(path); |
1469 | return ret; | |
1470 | } | |
105f1c28 | 1471 | |
105f1c28 MB |
1472 | /** |
1473 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1474 | * @dapm: DAPM context |
105f1c28 MB |
1475 | * @route: audio routes |
1476 | * @num: number of routes | |
1477 | * | |
1478 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1479 | * the widget receiving the audio signal, whilst the source is the sender | |
1480 | * of the audio signal. | |
1481 | * | |
1482 | * Returns 0 for success else error. On error all resources can be freed | |
1483 | * with a call to snd_soc_card_free(). | |
1484 | */ | |
ce6120cc | 1485 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1486 | const struct snd_soc_dapm_route *route, int num) |
1487 | { | |
1488 | int i, ret; | |
1489 | ||
1490 | for (i = 0; i < num; i++) { | |
ce6120cc | 1491 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1492 | if (ret < 0) { |
f7d41ae8 JN |
1493 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1494 | route->source, route->sink); | |
105f1c28 MB |
1495 | return ret; |
1496 | } | |
1497 | route++; | |
1498 | } | |
1499 | ||
1500 | return 0; | |
1501 | } | |
1502 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1503 | ||
2b97eabc RP |
1504 | /** |
1505 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 1506 | * @dapm: DAPM context |
2b97eabc RP |
1507 | * |
1508 | * Checks the codec for any new dapm widgets and creates them if found. | |
1509 | * | |
1510 | * Returns 0 for success. | |
1511 | */ | |
ce6120cc | 1512 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1513 | { |
1514 | struct snd_soc_dapm_widget *w; | |
1515 | ||
ce6120cc | 1516 | list_for_each_entry(w, &dapm->widgets, list) |
2b97eabc RP |
1517 | { |
1518 | if (w->new) | |
1519 | continue; | |
1520 | ||
1521 | switch(w->id) { | |
1522 | case snd_soc_dapm_switch: | |
1523 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1524 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 1525 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1526 | dapm_new_mixer(dapm, w); |
2b97eabc RP |
1527 | break; |
1528 | case snd_soc_dapm_mux: | |
2e72f8e3 | 1529 | case snd_soc_dapm_value_mux: |
b75576d7 | 1530 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1531 | dapm_new_mux(dapm, w); |
2b97eabc RP |
1532 | break; |
1533 | case snd_soc_dapm_adc: | |
010ff262 | 1534 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
1535 | w->power_check = dapm_adc_check_power; |
1536 | break; | |
2b97eabc | 1537 | case snd_soc_dapm_dac: |
010ff262 | 1538 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
1539 | w->power_check = dapm_dac_check_power; |
1540 | break; | |
2b97eabc | 1541 | case snd_soc_dapm_pga: |
b75576d7 | 1542 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1543 | dapm_new_pga(dapm, w); |
2b97eabc RP |
1544 | break; |
1545 | case snd_soc_dapm_input: | |
1546 | case snd_soc_dapm_output: | |
1547 | case snd_soc_dapm_micbias: | |
1548 | case snd_soc_dapm_spk: | |
1549 | case snd_soc_dapm_hp: | |
1550 | case snd_soc_dapm_mic: | |
1551 | case snd_soc_dapm_line: | |
b75576d7 MB |
1552 | w->power_check = dapm_generic_check_power; |
1553 | break; | |
246d0a17 MB |
1554 | case snd_soc_dapm_supply: |
1555 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
1556 | case snd_soc_dapm_vmid: |
1557 | case snd_soc_dapm_pre: | |
1558 | case snd_soc_dapm_post: | |
1559 | break; | |
1560 | } | |
1561 | w->new = 1; | |
1562 | } | |
1563 | ||
ce6120cc | 1564 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1565 | return 0; |
1566 | } | |
1567 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
1568 | ||
1569 | /** | |
1570 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
1571 | * @kcontrol: mixer control | |
ac11a2b3 | 1572 | * @ucontrol: control element information |
2b97eabc RP |
1573 | * |
1574 | * Callback to get the value of a dapm mixer control. | |
1575 | * | |
1576 | * Returns 0 for success. | |
1577 | */ | |
1578 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
1579 | struct snd_ctl_elem_value *ucontrol) | |
1580 | { | |
1581 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1582 | struct soc_mixer_control *mc = |
1583 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1584 | unsigned int reg = mc->reg; |
1585 | unsigned int shift = mc->shift; | |
1586 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1587 | int max = mc->max; |
815ecf8d JS |
1588 | unsigned int invert = mc->invert; |
1589 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 1590 | |
2b97eabc RP |
1591 | ucontrol->value.integer.value[0] = |
1592 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
1593 | if (shift != rshift) | |
1594 | ucontrol->value.integer.value[1] = | |
1595 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
1596 | if (invert) { | |
1597 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1598 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
1599 | if (shift != rshift) |
1600 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1601 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
1602 | } |
1603 | ||
1604 | return 0; | |
1605 | } | |
1606 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
1607 | ||
1608 | /** | |
1609 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
1610 | * @kcontrol: mixer control | |
ac11a2b3 | 1611 | * @ucontrol: control element information |
2b97eabc RP |
1612 | * |
1613 | * Callback to set the value of a dapm mixer control. | |
1614 | * | |
1615 | * Returns 0 for success. | |
1616 | */ | |
1617 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
1618 | struct snd_ctl_elem_value *ucontrol) | |
1619 | { | |
1620 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1621 | struct soc_mixer_control *mc = |
1622 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1623 | unsigned int reg = mc->reg; |
1624 | unsigned int shift = mc->shift; | |
1625 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1626 | int max = mc->max; |
815ecf8d JS |
1627 | unsigned int mask = (1 << fls(max)) - 1; |
1628 | unsigned int invert = mc->invert; | |
46f5822f | 1629 | unsigned int val, val2, val_mask; |
283375ce | 1630 | int connect; |
2b97eabc RP |
1631 | int ret; |
1632 | ||
1633 | val = (ucontrol->value.integer.value[0] & mask); | |
1634 | ||
1635 | if (invert) | |
a7a4ac86 | 1636 | val = max - val; |
2b97eabc RP |
1637 | val_mask = mask << shift; |
1638 | val = val << shift; | |
1639 | if (shift != rshift) { | |
1640 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1641 | if (invert) | |
a7a4ac86 | 1642 | val2 = max - val2; |
2b97eabc RP |
1643 | val_mask |= mask << rshift; |
1644 | val |= val2 << rshift; | |
1645 | } | |
1646 | ||
1647 | mutex_lock(&widget->codec->mutex); | |
1648 | widget->value = val; | |
1649 | ||
283375ce MB |
1650 | if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) { |
1651 | if (val) | |
1652 | /* new connection */ | |
1653 | connect = invert ? 0:1; | |
1654 | else | |
1655 | /* old connection must be powered down */ | |
1656 | connect = invert ? 1:0; | |
1657 | ||
1658 | dapm_mixer_update_power(widget, kcontrol, connect); | |
1659 | } | |
1660 | ||
2b97eabc RP |
1661 | if (widget->event) { |
1662 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
9af6d956 LG |
1663 | ret = widget->event(widget, kcontrol, |
1664 | SND_SOC_DAPM_PRE_REG); | |
1665 | if (ret < 0) { | |
1666 | ret = 1; | |
2b97eabc | 1667 | goto out; |
9af6d956 | 1668 | } |
2b97eabc RP |
1669 | } |
1670 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); | |
1671 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
9af6d956 LG |
1672 | ret = widget->event(widget, kcontrol, |
1673 | SND_SOC_DAPM_POST_REG); | |
2b97eabc RP |
1674 | } else |
1675 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); | |
1676 | ||
1677 | out: | |
1678 | mutex_unlock(&widget->codec->mutex); | |
1679 | return ret; | |
1680 | } | |
1681 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
1682 | ||
1683 | /** | |
1684 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
1685 | * @kcontrol: mixer control | |
ac11a2b3 | 1686 | * @ucontrol: control element information |
2b97eabc RP |
1687 | * |
1688 | * Callback to get the value of a dapm enumerated double mixer control. | |
1689 | * | |
1690 | * Returns 0 for success. | |
1691 | */ | |
1692 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
1693 | struct snd_ctl_elem_value *ucontrol) | |
1694 | { | |
1695 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1696 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1697 | unsigned int val, bitmask; |
2b97eabc | 1698 | |
f8ba0b7b | 1699 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
1700 | ; |
1701 | val = snd_soc_read(widget->codec, e->reg); | |
1702 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
1703 | if (e->shift_l != e->shift_r) | |
1704 | ucontrol->value.enumerated.item[1] = | |
1705 | (val >> e->shift_r) & (bitmask - 1); | |
1706 | ||
1707 | return 0; | |
1708 | } | |
1709 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
1710 | ||
1711 | /** | |
1712 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
1713 | * @kcontrol: mixer control | |
ac11a2b3 | 1714 | * @ucontrol: control element information |
2b97eabc RP |
1715 | * |
1716 | * Callback to set the value of a dapm enumerated double mixer control. | |
1717 | * | |
1718 | * Returns 0 for success. | |
1719 | */ | |
1720 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
1721 | struct snd_ctl_elem_value *ucontrol) | |
1722 | { | |
1723 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1724 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
3a65577d | 1725 | unsigned int val, mux, change; |
46f5822f | 1726 | unsigned int mask, bitmask; |
2b97eabc RP |
1727 | int ret = 0; |
1728 | ||
f8ba0b7b | 1729 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 1730 | ; |
f8ba0b7b | 1731 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
1732 | return -EINVAL; |
1733 | mux = ucontrol->value.enumerated.item[0]; | |
1734 | val = mux << e->shift_l; | |
1735 | mask = (bitmask - 1) << e->shift_l; | |
1736 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1737 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
1738 | return -EINVAL; |
1739 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1740 | mask |= (bitmask - 1) << e->shift_r; | |
1741 | } | |
1742 | ||
1743 | mutex_lock(&widget->codec->mutex); | |
1744 | widget->value = val; | |
3a65577d MB |
1745 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1746 | dapm_mux_update_power(widget, kcontrol, change, mux, e); | |
1642e3d4 MB |
1747 | |
1748 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
1749 | ret = widget->event(widget, | |
1750 | kcontrol, SND_SOC_DAPM_PRE_REG); | |
1751 | if (ret < 0) | |
1752 | goto out; | |
1753 | } | |
1754 | ||
1755 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); | |
1756 | ||
1757 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
1758 | ret = widget->event(widget, | |
1759 | kcontrol, SND_SOC_DAPM_POST_REG); | |
2b97eabc RP |
1760 | |
1761 | out: | |
1762 | mutex_unlock(&widget->codec->mutex); | |
1763 | return ret; | |
1764 | } | |
1765 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
1766 | ||
d2b247a8 MB |
1767 | /** |
1768 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
1769 | * @kcontrol: mixer control | |
1770 | * @ucontrol: control element information | |
1771 | * | |
1772 | * Returns 0 for success. | |
1773 | */ | |
1774 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
1775 | struct snd_ctl_elem_value *ucontrol) | |
1776 | { | |
1777 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1778 | ||
1779 | ucontrol->value.enumerated.item[0] = widget->value; | |
1780 | ||
1781 | return 0; | |
1782 | } | |
1783 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
1784 | ||
1785 | /** | |
1786 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
1787 | * @kcontrol: mixer control | |
1788 | * @ucontrol: control element information | |
1789 | * | |
1790 | * Returns 0 for success. | |
1791 | */ | |
1792 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
1793 | struct snd_ctl_elem_value *ucontrol) | |
1794 | { | |
1795 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1796 | struct soc_enum *e = | |
1797 | (struct soc_enum *)kcontrol->private_value; | |
1798 | int change; | |
1799 | int ret = 0; | |
1800 | ||
1801 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
1802 | return -EINVAL; | |
1803 | ||
1804 | mutex_lock(&widget->codec->mutex); | |
1805 | ||
1806 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
1807 | widget->value = ucontrol->value.enumerated.item[0]; | |
1808 | dapm_mux_update_power(widget, kcontrol, change, widget->value, e); | |
1809 | ||
1810 | mutex_unlock(&widget->codec->mutex); | |
1811 | return ret; | |
1812 | } | |
1813 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
1814 | ||
2e72f8e3 PU |
1815 | /** |
1816 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
1817 | * callback | |
1818 | * @kcontrol: mixer control | |
1819 | * @ucontrol: control element information | |
1820 | * | |
1821 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
1822 | * | |
1823 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1824 | * used for handling bitfield coded enumeration for example. | |
1825 | * | |
1826 | * Returns 0 for success. | |
1827 | */ | |
1828 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1829 | struct snd_ctl_elem_value *ucontrol) | |
1830 | { | |
1831 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1832 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 1833 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
1834 | |
1835 | reg_val = snd_soc_read(widget->codec, e->reg); | |
1836 | val = (reg_val >> e->shift_l) & e->mask; | |
1837 | for (mux = 0; mux < e->max; mux++) { | |
1838 | if (val == e->values[mux]) | |
1839 | break; | |
1840 | } | |
1841 | ucontrol->value.enumerated.item[0] = mux; | |
1842 | if (e->shift_l != e->shift_r) { | |
1843 | val = (reg_val >> e->shift_r) & e->mask; | |
1844 | for (mux = 0; mux < e->max; mux++) { | |
1845 | if (val == e->values[mux]) | |
1846 | break; | |
1847 | } | |
1848 | ucontrol->value.enumerated.item[1] = mux; | |
1849 | } | |
1850 | ||
1851 | return 0; | |
1852 | } | |
1853 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
1854 | ||
1855 | /** | |
1856 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
1857 | * callback | |
1858 | * @kcontrol: mixer control | |
1859 | * @ucontrol: control element information | |
1860 | * | |
1861 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
1862 | * | |
1863 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1864 | * used for handling bitfield coded enumeration for example. | |
1865 | * | |
1866 | * Returns 0 for success. | |
1867 | */ | |
1868 | int snd_soc_dapm_put_value_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); | |
74155556 | 1872 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 1873 | unsigned int val, mux, change; |
46f5822f | 1874 | unsigned int mask; |
2e72f8e3 PU |
1875 | int ret = 0; |
1876 | ||
1877 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1878 | return -EINVAL; | |
1879 | mux = ucontrol->value.enumerated.item[0]; | |
1880 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1881 | mask = e->mask << e->shift_l; | |
1882 | if (e->shift_l != e->shift_r) { | |
1883 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1884 | return -EINVAL; | |
1885 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1886 | mask |= e->mask << e->shift_r; | |
1887 | } | |
1888 | ||
1889 | mutex_lock(&widget->codec->mutex); | |
1890 | widget->value = val; | |
3a65577d MB |
1891 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1892 | dapm_mux_update_power(widget, kcontrol, change, mux, e); | |
1642e3d4 MB |
1893 | |
1894 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
1895 | ret = widget->event(widget, | |
1896 | kcontrol, SND_SOC_DAPM_PRE_REG); | |
1897 | if (ret < 0) | |
1898 | goto out; | |
1899 | } | |
1900 | ||
1901 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); | |
1902 | ||
1903 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
1904 | ret = widget->event(widget, | |
1905 | kcontrol, SND_SOC_DAPM_POST_REG); | |
2e72f8e3 PU |
1906 | |
1907 | out: | |
1908 | mutex_unlock(&widget->codec->mutex); | |
1909 | return ret; | |
1910 | } | |
1911 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
1912 | ||
8b37dbd2 MB |
1913 | /** |
1914 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
1915 | * | |
1916 | * @kcontrol: mixer control | |
1917 | * @uinfo: control element information | |
1918 | * | |
1919 | * Callback to provide information about a pin switch control. | |
1920 | */ | |
1921 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
1922 | struct snd_ctl_elem_info *uinfo) | |
1923 | { | |
1924 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1925 | uinfo->count = 1; | |
1926 | uinfo->value.integer.min = 0; | |
1927 | uinfo->value.integer.max = 1; | |
1928 | ||
1929 | return 0; | |
1930 | } | |
1931 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
1932 | ||
1933 | /** | |
1934 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
1935 | * | |
1936 | * @kcontrol: mixer control | |
1937 | * @ucontrol: Value | |
1938 | */ | |
1939 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
1940 | struct snd_ctl_elem_value *ucontrol) | |
1941 | { | |
1942 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1943 | const char *pin = (const char *)kcontrol->private_value; | |
1944 | ||
1945 | mutex_lock(&codec->mutex); | |
1946 | ||
1947 | ucontrol->value.integer.value[0] = | |
ce6120cc | 1948 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
1949 | |
1950 | mutex_unlock(&codec->mutex); | |
1951 | ||
1952 | return 0; | |
1953 | } | |
1954 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
1955 | ||
1956 | /** | |
1957 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
1958 | * | |
1959 | * @kcontrol: mixer control | |
1960 | * @ucontrol: Value | |
1961 | */ | |
1962 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
1963 | struct snd_ctl_elem_value *ucontrol) | |
1964 | { | |
1965 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1966 | const char *pin = (const char *)kcontrol->private_value; | |
1967 | ||
1968 | mutex_lock(&codec->mutex); | |
1969 | ||
1970 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 1971 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 1972 | else |
ce6120cc | 1973 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 1974 | |
ce6120cc | 1975 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
1976 | |
1977 | mutex_unlock(&codec->mutex); | |
1978 | ||
1979 | return 0; | |
1980 | } | |
1981 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
1982 | ||
2b97eabc RP |
1983 | /** |
1984 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 1985 | * @dapm: DAPM context |
2b97eabc RP |
1986 | * @widget: widget template |
1987 | * | |
1988 | * Creates a new dapm control based upon the template. | |
1989 | * | |
1990 | * Returns 0 for success else error. | |
1991 | */ | |
ce6120cc | 1992 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
1993 | const struct snd_soc_dapm_widget *widget) |
1994 | { | |
1995 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 1996 | size_t name_len; |
2b97eabc RP |
1997 | |
1998 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
1999 | return -ENOMEM; | |
2000 | ||
ead9b919 JN |
2001 | name_len = strlen(widget->name) + 1; |
2002 | if (dapm->codec->name_prefix) | |
2003 | name_len += 1 + strlen(dapm->codec->name_prefix); | |
2004 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2005 | if (w->name == NULL) { | |
2006 | kfree(w); | |
2007 | return -ENOMEM; | |
2008 | } | |
2009 | if (dapm->codec->name_prefix) | |
2010 | snprintf(w->name, name_len, "%s %s", | |
2011 | dapm->codec->name_prefix, widget->name); | |
2012 | else | |
2013 | snprintf(w->name, name_len, "%s", widget->name); | |
2014 | ||
ce6120cc LG |
2015 | w->dapm = dapm; |
2016 | w->codec = dapm->codec; | |
2b97eabc RP |
2017 | INIT_LIST_HEAD(&w->sources); |
2018 | INIT_LIST_HEAD(&w->sinks); | |
2019 | INIT_LIST_HEAD(&w->list); | |
ce6120cc | 2020 | list_add(&w->list, &dapm->widgets); |
2b97eabc RP |
2021 | |
2022 | /* machine layer set ups unconnected pins and insertions */ | |
2023 | w->connected = 1; | |
2024 | return 0; | |
2025 | } | |
2026 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2027 | ||
4ba1327a MB |
2028 | /** |
2029 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2030 | * @dapm: DAPM context |
4ba1327a MB |
2031 | * @widget: widget array |
2032 | * @num: number of widgets | |
2033 | * | |
2034 | * Creates new DAPM controls based upon the templates. | |
2035 | * | |
2036 | * Returns 0 for success else error. | |
2037 | */ | |
ce6120cc | 2038 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2039 | const struct snd_soc_dapm_widget *widget, |
2040 | int num) | |
2041 | { | |
2042 | int i, ret; | |
2043 | ||
2044 | for (i = 0; i < num; i++) { | |
ce6120cc | 2045 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2046 | if (ret < 0) { |
f7d41ae8 JN |
2047 | dev_err(dapm->dev, |
2048 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2049 | widget->name, ret); | |
4ba1327a | 2050 | return ret; |
b8b33cb5 | 2051 | } |
4ba1327a MB |
2052 | widget++; |
2053 | } | |
2054 | return 0; | |
2055 | } | |
2056 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2057 | ||
ce6120cc | 2058 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2059 | const char *stream, int event) |
2b97eabc RP |
2060 | { |
2061 | struct snd_soc_dapm_widget *w; | |
2062 | ||
ce6120cc | 2063 | list_for_each_entry(w, &dapm->widgets, list) |
2b97eabc RP |
2064 | { |
2065 | if (!w->sname) | |
2066 | continue; | |
f7d41ae8 JN |
2067 | dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
2068 | w->name, w->sname, stream, event); | |
2b97eabc RP |
2069 | if (strstr(w->sname, stream)) { |
2070 | switch(event) { | |
2071 | case SND_SOC_DAPM_STREAM_START: | |
2072 | w->active = 1; | |
2073 | break; | |
2074 | case SND_SOC_DAPM_STREAM_STOP: | |
2075 | w->active = 0; | |
2076 | break; | |
2077 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2078 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2079 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2080 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2081 | break; | |
2082 | } | |
2083 | } | |
2084 | } | |
2b97eabc | 2085 | |
ce6120cc LG |
2086 | dapm_power_widgets(dapm, event); |
2087 | } | |
2088 | ||
2089 | /** | |
2090 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2091 | * @rtd: PCM runtime data | |
2092 | * @stream: stream name | |
2093 | * @event: stream event | |
2094 | * | |
2095 | * Sends a stream event to the dapm core. The core then makes any | |
2096 | * necessary widget power changes. | |
2097 | * | |
2098 | * Returns 0 for success else error. | |
2099 | */ | |
2100 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2101 | const char *stream, int event) | |
2102 | { | |
2103 | struct snd_soc_codec *codec = rtd->codec; | |
2104 | ||
2105 | if (stream == NULL) | |
2106 | return 0; | |
2107 | ||
2108 | mutex_lock(&codec->mutex); | |
2109 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2110 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2111 | return 0; |
2112 | } | |
2113 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); | |
2114 | ||
2115 | /** | |
a5302181 | 2116 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2117 | * @dapm: DAPM context |
a5302181 | 2118 | * @pin: pin name |
2b97eabc | 2119 | * |
74b8f955 | 2120 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2121 | * a valid audio route and active audio stream. |
2122 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2123 | * do any widget power switching. | |
2b97eabc | 2124 | */ |
ce6120cc | 2125 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2126 | { |
ce6120cc | 2127 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2128 | } |
2129 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2130 | |
da34183e MB |
2131 | /** |
2132 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2133 | * @dapm: DAPM context |
da34183e MB |
2134 | * @pin: pin name |
2135 | * | |
2136 | * Enables input/output pin regardless of any other state. This is | |
2137 | * intended for use with microphone bias supplies used in microphone | |
2138 | * jack detection. | |
2139 | * | |
2140 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2141 | * do any widget power switching. | |
2142 | */ | |
ce6120cc LG |
2143 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2144 | const char *pin) | |
da34183e MB |
2145 | { |
2146 | struct snd_soc_dapm_widget *w; | |
2147 | ||
ce6120cc | 2148 | list_for_each_entry(w, &dapm->widgets, list) { |
da34183e | 2149 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
2150 | dev_dbg(w->dapm->dev, |
2151 | "dapm: force enable pin %s\n", pin); | |
da34183e MB |
2152 | w->connected = 1; |
2153 | w->force = 1; | |
2154 | return 0; | |
2155 | } | |
2156 | } | |
2157 | ||
f7d41ae8 | 2158 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
da34183e MB |
2159 | return -EINVAL; |
2160 | } | |
2161 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2162 | ||
a5302181 LG |
2163 | /** |
2164 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2165 | * @dapm: DAPM context |
a5302181 LG |
2166 | * @pin: pin name |
2167 | * | |
74b8f955 | 2168 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2169 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2170 | * do any widget power switching. | |
2171 | */ | |
ce6120cc LG |
2172 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2173 | const char *pin) | |
a5302181 | 2174 | { |
ce6120cc | 2175 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2176 | } |
a5302181 | 2177 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2178 | |
5817b52a MB |
2179 | /** |
2180 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2181 | * @dapm: DAPM context |
5817b52a MB |
2182 | * @pin: pin name |
2183 | * | |
2184 | * Marks the specified pin as being not connected, disabling it along | |
2185 | * any parent or child widgets. At present this is identical to | |
2186 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2187 | * additional things such as disabling controls which only affect | |
2188 | * paths through the pin. | |
2189 | * | |
2190 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2191 | * do any widget power switching. | |
2192 | */ | |
ce6120cc | 2193 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2194 | { |
ce6120cc | 2195 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2196 | } |
2197 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2198 | ||
eeec12bf | 2199 | /** |
a5302181 | 2200 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2201 | * @dapm: DAPM context |
a5302181 | 2202 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2203 | * |
a5302181 | 2204 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2205 | * |
a5302181 | 2206 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2207 | */ |
ce6120cc LG |
2208 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2209 | const char *pin) | |
eeec12bf GG |
2210 | { |
2211 | struct snd_soc_dapm_widget *w; | |
2212 | ||
ce6120cc | 2213 | list_for_each_entry(w, &dapm->widgets, list) { |
a5302181 | 2214 | if (!strcmp(w->name, pin)) |
eeec12bf GG |
2215 | return w->connected; |
2216 | } | |
2217 | ||
2218 | return 0; | |
2219 | } | |
a5302181 | 2220 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2221 | |
1547aba9 MB |
2222 | /** |
2223 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2224 | * @dapm: DAPM context |
1547aba9 MB |
2225 | * @pin: audio signal pin endpoint (or start point) |
2226 | * | |
2227 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2228 | * system is disabled a path between two endpoints flagged as ignoring | |
2229 | * suspend will not be disabled. The path must already be enabled via | |
2230 | * normal means at suspend time, it will not be turned on if it was not | |
2231 | * already enabled. | |
2232 | */ | |
ce6120cc LG |
2233 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2234 | const char *pin) | |
1547aba9 MB |
2235 | { |
2236 | struct snd_soc_dapm_widget *w; | |
2237 | ||
ce6120cc | 2238 | list_for_each_entry(w, &dapm->widgets, list) { |
1547aba9 MB |
2239 | if (!strcmp(w->name, pin)) { |
2240 | w->ignore_suspend = 1; | |
2241 | return 0; | |
2242 | } | |
2243 | } | |
2244 | ||
f7d41ae8 | 2245 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
1547aba9 MB |
2246 | return -EINVAL; |
2247 | } | |
2248 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2249 | ||
2b97eabc RP |
2250 | /** |
2251 | * snd_soc_dapm_free - free dapm resources | |
f0fba2ad | 2252 | * @card: SoC device |
2b97eabc RP |
2253 | * |
2254 | * Free all dapm widgets and resources. | |
2255 | */ | |
ce6120cc | 2256 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2257 | { |
ce6120cc LG |
2258 | snd_soc_dapm_sys_remove(dapm->dev); |
2259 | dapm_free_widgets(dapm); | |
2b97eabc RP |
2260 | } |
2261 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2262 | ||
ce6120cc | 2263 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2264 | { |
51737470 MB |
2265 | struct snd_soc_dapm_widget *w; |
2266 | LIST_HEAD(down_list); | |
2267 | int powerdown = 0; | |
2268 | ||
ce6120cc | 2269 | list_for_each_entry(w, &dapm->widgets, list) { |
51737470 MB |
2270 | if (w->power) { |
2271 | dapm_seq_insert(w, &down_list, dapm_down_seq); | |
c2caa4da | 2272 | w->power = 0; |
51737470 MB |
2273 | powerdown = 1; |
2274 | } | |
2275 | } | |
2276 | ||
2277 | /* If there were no widgets to power down we're already in | |
2278 | * standby. | |
2279 | */ | |
2280 | if (powerdown) { | |
ce6120cc LG |
2281 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_PREPARE); |
2282 | dapm_seq_run(dapm, &down_list, 0, dapm_down_seq); | |
2283 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_STANDBY); | |
51737470 | 2284 | } |
f0fba2ad LG |
2285 | } |
2286 | ||
2287 | /* | |
2288 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2289 | */ | |
2290 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2291 | { | |
2292 | struct snd_soc_codec *codec; | |
2293 | ||
ce6120cc LG |
2294 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2295 | soc_dapm_shutdown_codec(&codec->dapm); | |
2296 | snd_soc_dapm_set_bias_level(card, &codec->dapm, SND_SOC_BIAS_OFF); | |
2297 | } | |
51737470 MB |
2298 | } |
2299 | ||
2b97eabc | 2300 | /* Module information */ |
d331124d | 2301 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2302 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2303 | MODULE_LICENSE("GPL"); |