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 | ||
2b97eabc RP |
49 | /* dapm power sequences - make this per codec in the future */ |
50 | static int dapm_up_seq[] = { | |
38357ab2 MB |
51 | [snd_soc_dapm_pre] = 0, |
52 | [snd_soc_dapm_supply] = 1, | |
53 | [snd_soc_dapm_micbias] = 2, | |
010ff262 MB |
54 | [snd_soc_dapm_aif_in] = 3, |
55 | [snd_soc_dapm_aif_out] = 3, | |
56 | [snd_soc_dapm_mic] = 4, | |
57 | [snd_soc_dapm_mux] = 5, | |
58 | [snd_soc_dapm_value_mux] = 5, | |
59 | [snd_soc_dapm_dac] = 6, | |
60 | [snd_soc_dapm_mixer] = 7, | |
61 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
62 | [snd_soc_dapm_pga] = 8, | |
63 | [snd_soc_dapm_adc] = 9, | |
64 | [snd_soc_dapm_hp] = 10, | |
65 | [snd_soc_dapm_spk] = 10, | |
66 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 67 | }; |
ca9c1aae | 68 | |
2b97eabc | 69 | static int dapm_down_seq[] = { |
38357ab2 MB |
70 | [snd_soc_dapm_pre] = 0, |
71 | [snd_soc_dapm_adc] = 1, | |
72 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 73 | [snd_soc_dapm_spk] = 2, |
38357ab2 MB |
74 | [snd_soc_dapm_pga] = 4, |
75 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
76 | [snd_soc_dapm_mixer] = 5, |
77 | [snd_soc_dapm_dac] = 6, | |
78 | [snd_soc_dapm_mic] = 7, | |
79 | [snd_soc_dapm_micbias] = 8, | |
80 | [snd_soc_dapm_mux] = 9, | |
81 | [snd_soc_dapm_value_mux] = 9, | |
010ff262 MB |
82 | [snd_soc_dapm_aif_in] = 10, |
83 | [snd_soc_dapm_aif_out] = 10, | |
84 | [snd_soc_dapm_supply] = 11, | |
85 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
86 | }; |
87 | ||
12ef193d | 88 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
89 | { |
90 | if (pop_time) | |
91 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
92 | } | |
93 | ||
fd8d3bc0 | 94 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
95 | { |
96 | va_list args; | |
fd8d3bc0 | 97 | char *buf; |
15e4c72f | 98 | |
fd8d3bc0 JN |
99 | if (!pop_time) |
100 | return; | |
15e4c72f | 101 | |
fd8d3bc0 JN |
102 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
103 | if (buf == NULL) | |
104 | return; | |
15e4c72f | 105 | |
fd8d3bc0 JN |
106 | va_start(args, fmt); |
107 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
108 | dev_info(dev, buf); | |
15e4c72f | 109 | va_end(args); |
fd8d3bc0 JN |
110 | |
111 | kfree(buf); | |
15e4c72f MB |
112 | } |
113 | ||
2b97eabc | 114 | /* create a new dapm widget */ |
88cb4290 | 115 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
116 | const struct snd_soc_dapm_widget *_widget) |
117 | { | |
88cb4290 | 118 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
119 | } |
120 | ||
452c5eaa MB |
121 | /** |
122 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
f0fba2ad | 123 | * @card: audio device |
452c5eaa MB |
124 | * @level: level to configure |
125 | * | |
126 | * Configure the bias (power) levels for the SoC audio device. | |
127 | * | |
128 | * Returns 0 for success else error. | |
129 | */ | |
f0fba2ad | 130 | static int snd_soc_dapm_set_bias_level(struct snd_soc_card *card, |
ce6120cc LG |
131 | struct snd_soc_dapm_context *dapm, |
132 | enum snd_soc_bias_level level) | |
452c5eaa | 133 | { |
452c5eaa MB |
134 | int ret = 0; |
135 | ||
f83fba8b MB |
136 | switch (level) { |
137 | case SND_SOC_BIAS_ON: | |
ce6120cc | 138 | dev_dbg(dapm->dev, "Setting full bias\n"); |
f83fba8b MB |
139 | break; |
140 | case SND_SOC_BIAS_PREPARE: | |
ce6120cc | 141 | dev_dbg(dapm->dev, "Setting bias prepare\n"); |
f83fba8b MB |
142 | break; |
143 | case SND_SOC_BIAS_STANDBY: | |
ce6120cc | 144 | dev_dbg(dapm->dev, "Setting standby bias\n"); |
f83fba8b MB |
145 | break; |
146 | case SND_SOC_BIAS_OFF: | |
ce6120cc | 147 | dev_dbg(dapm->dev, "Setting bias off\n"); |
f83fba8b MB |
148 | break; |
149 | default: | |
ce6120cc | 150 | dev_err(dapm->dev, "Setting invalid bias %d\n", level); |
f83fba8b MB |
151 | return -EINVAL; |
152 | } | |
153 | ||
f0fba2ad | 154 | if (card && card->set_bias_level) |
452c5eaa | 155 | ret = card->set_bias_level(card, level); |
474e09ca | 156 | if (ret == 0) { |
ce6120cc LG |
157 | if (dapm->codec && dapm->codec->driver->set_bias_level) |
158 | ret = dapm->codec->driver->set_bias_level(dapm->codec, level); | |
474e09ca | 159 | else |
ce6120cc | 160 | dapm->bias_level = level; |
474e09ca | 161 | } |
452c5eaa MB |
162 | |
163 | return ret; | |
164 | } | |
165 | ||
2b97eabc RP |
166 | /* set up initial codec paths */ |
167 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
168 | struct snd_soc_dapm_path *p, int i) | |
169 | { | |
170 | switch (w->id) { | |
171 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
172 | case snd_soc_dapm_mixer: |
173 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 174 | int val; |
4eaa9819 JS |
175 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
176 | w->kcontrols[i].private_value; | |
815ecf8d JS |
177 | unsigned int reg = mc->reg; |
178 | unsigned int shift = mc->shift; | |
4eaa9819 | 179 | int max = mc->max; |
815ecf8d JS |
180 | unsigned int mask = (1 << fls(max)) - 1; |
181 | unsigned int invert = mc->invert; | |
2b97eabc RP |
182 | |
183 | val = snd_soc_read(w->codec, reg); | |
184 | val = (val >> shift) & mask; | |
185 | ||
186 | if ((invert && !val) || (!invert && val)) | |
187 | p->connect = 1; | |
188 | else | |
189 | p->connect = 0; | |
190 | } | |
191 | break; | |
192 | case snd_soc_dapm_mux: { | |
193 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; | |
194 | int val, item, bitmask; | |
195 | ||
f8ba0b7b | 196 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
197 | ; |
198 | val = snd_soc_read(w->codec, e->reg); | |
199 | item = (val >> e->shift_l) & (bitmask - 1); | |
200 | ||
201 | p->connect = 0; | |
f8ba0b7b | 202 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
203 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
204 | p->connect = 1; | |
205 | } | |
206 | } | |
207 | break; | |
2e72f8e3 | 208 | case snd_soc_dapm_value_mux: { |
74155556 | 209 | struct soc_enum *e = (struct soc_enum *) |
2e72f8e3 PU |
210 | w->kcontrols[i].private_value; |
211 | int val, item; | |
212 | ||
213 | val = snd_soc_read(w->codec, e->reg); | |
214 | val = (val >> e->shift_l) & e->mask; | |
215 | for (item = 0; item < e->max; item++) { | |
216 | if (val == e->values[item]) | |
217 | break; | |
218 | } | |
219 | ||
220 | p->connect = 0; | |
221 | for (i = 0; i < e->max; i++) { | |
222 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
223 | p->connect = 1; | |
224 | } | |
225 | } | |
226 | break; | |
2b97eabc RP |
227 | /* does not effect routing - always connected */ |
228 | case snd_soc_dapm_pga: | |
229 | case snd_soc_dapm_output: | |
230 | case snd_soc_dapm_adc: | |
231 | case snd_soc_dapm_input: | |
232 | case snd_soc_dapm_dac: | |
233 | case snd_soc_dapm_micbias: | |
234 | case snd_soc_dapm_vmid: | |
246d0a17 | 235 | case snd_soc_dapm_supply: |
010ff262 MB |
236 | case snd_soc_dapm_aif_in: |
237 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
238 | p->connect = 1; |
239 | break; | |
240 | /* does effect routing - dynamically connected */ | |
241 | case snd_soc_dapm_hp: | |
242 | case snd_soc_dapm_mic: | |
243 | case snd_soc_dapm_spk: | |
244 | case snd_soc_dapm_line: | |
245 | case snd_soc_dapm_pre: | |
246 | case snd_soc_dapm_post: | |
247 | p->connect = 0; | |
248 | break; | |
249 | } | |
250 | } | |
251 | ||
74b8f955 | 252 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 253 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
254 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
255 | struct snd_soc_dapm_path *path, const char *control_name, | |
256 | const struct snd_kcontrol_new *kcontrol) | |
257 | { | |
258 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
259 | int i; | |
260 | ||
f8ba0b7b | 261 | for (i = 0; i < e->max; i++) { |
2b97eabc | 262 | if (!(strcmp(control_name, e->texts[i]))) { |
ce6120cc | 263 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
264 | list_add(&path->list_sink, &dest->sources); |
265 | list_add(&path->list_source, &src->sinks); | |
266 | path->name = (char*)e->texts[i]; | |
267 | dapm_set_path_status(dest, path, 0); | |
268 | return 0; | |
269 | } | |
270 | } | |
271 | ||
272 | return -ENODEV; | |
273 | } | |
274 | ||
74b8f955 | 275 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 276 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
277 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
278 | struct snd_soc_dapm_path *path, const char *control_name) | |
279 | { | |
280 | int i; | |
281 | ||
282 | /* search for mixer kcontrol */ | |
283 | for (i = 0; i < dest->num_kcontrols; i++) { | |
284 | if (!strcmp(control_name, dest->kcontrols[i].name)) { | |
ce6120cc | 285 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
286 | list_add(&path->list_sink, &dest->sources); |
287 | list_add(&path->list_source, &src->sinks); | |
288 | path->name = dest->kcontrols[i].name; | |
289 | dapm_set_path_status(dest, path, i); | |
290 | return 0; | |
291 | } | |
292 | } | |
293 | return -ENODEV; | |
294 | } | |
295 | ||
296 | /* update dapm codec register bits */ | |
297 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) | |
298 | { | |
299 | int change, power; | |
46f5822f | 300 | unsigned int old, new; |
2b97eabc | 301 | struct snd_soc_codec *codec = widget->codec; |
ce6120cc | 302 | struct snd_soc_dapm_context *dapm = widget->dapm; |
3a45b867 | 303 | struct snd_soc_card *card = dapm->card; |
2b97eabc RP |
304 | |
305 | /* check for valid widgets */ | |
306 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || | |
307 | widget->id == snd_soc_dapm_output || | |
308 | widget->id == snd_soc_dapm_hp || | |
309 | widget->id == snd_soc_dapm_mic || | |
310 | widget->id == snd_soc_dapm_line || | |
311 | widget->id == snd_soc_dapm_spk) | |
312 | return 0; | |
313 | ||
314 | power = widget->power; | |
315 | if (widget->invert) | |
316 | power = (power ? 0:1); | |
317 | ||
318 | old = snd_soc_read(codec, widget->reg); | |
319 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); | |
320 | ||
321 | change = old != new; | |
322 | if (change) { | |
fd8d3bc0 JN |
323 | pop_dbg(dapm->dev, card->pop_time, |
324 | "pop test %s : %s in %d ms\n", | |
12ef193d | 325 | widget->name, widget->power ? "on" : "off", |
3a45b867 JN |
326 | card->pop_time); |
327 | pop_wait(card->pop_time); | |
69224719 | 328 | snd_soc_write(codec, widget->reg, new); |
2b97eabc | 329 | } |
f7d41ae8 JN |
330 | dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg, |
331 | old, new, change); | |
2b97eabc RP |
332 | return change; |
333 | } | |
334 | ||
2b97eabc | 335 | /* create new dapm mixer control */ |
ce6120cc | 336 | static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
337 | struct snd_soc_dapm_widget *w) |
338 | { | |
339 | int i, ret = 0; | |
219b93f5 | 340 | size_t name_len; |
2b97eabc | 341 | struct snd_soc_dapm_path *path; |
ce6120cc | 342 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
343 | |
344 | /* add kcontrol */ | |
345 | for (i = 0; i < w->num_kcontrols; i++) { | |
346 | ||
347 | /* match name */ | |
348 | list_for_each_entry(path, &w->sources, list_sink) { | |
349 | ||
350 | /* mixer/mux paths name must match control name */ | |
351 | if (path->name != (char*)w->kcontrols[i].name) | |
352 | continue; | |
353 | ||
ca9c1aae IM |
354 | /* add dapm control with long name. |
355 | * for dapm_mixer this is the concatenation of the | |
356 | * mixer and kcontrol name. | |
357 | * for dapm_mixer_named_ctl this is simply the | |
358 | * kcontrol name. | |
359 | */ | |
360 | name_len = strlen(w->kcontrols[i].name) + 1; | |
07495f3e | 361 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
362 | name_len += 1 + strlen(w->name); |
363 | ||
219b93f5 | 364 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 365 | |
2b97eabc RP |
366 | if (path->long_name == NULL) |
367 | return -ENOMEM; | |
368 | ||
ca9c1aae | 369 | switch (w->id) { |
ca9c1aae IM |
370 | default: |
371 | snprintf(path->long_name, name_len, "%s %s", | |
372 | w->name, w->kcontrols[i].name); | |
07495f3e | 373 | break; |
ca9c1aae IM |
374 | case snd_soc_dapm_mixer_named_ctl: |
375 | snprintf(path->long_name, name_len, "%s", | |
376 | w->kcontrols[i].name); | |
07495f3e | 377 | break; |
ca9c1aae IM |
378 | } |
379 | ||
219b93f5 MB |
380 | path->long_name[name_len - 1] = '\0'; |
381 | ||
2b97eabc RP |
382 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
383 | path->long_name); | |
ce6120cc | 384 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 385 | if (ret < 0) { |
f7d41ae8 JN |
386 | dev_err(dapm->dev, |
387 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
388 | path->long_name, ret); | |
2b97eabc RP |
389 | kfree(path->long_name); |
390 | path->long_name = NULL; | |
391 | return ret; | |
392 | } | |
393 | } | |
394 | } | |
395 | return ret; | |
396 | } | |
397 | ||
398 | /* create new dapm mux control */ | |
ce6120cc | 399 | static int dapm_new_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
400 | struct snd_soc_dapm_widget *w) |
401 | { | |
402 | struct snd_soc_dapm_path *path = NULL; | |
403 | struct snd_kcontrol *kcontrol; | |
ce6120cc | 404 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
405 | int ret = 0; |
406 | ||
407 | if (!w->num_kcontrols) { | |
f7d41ae8 | 408 | dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name); |
2b97eabc RP |
409 | return -EINVAL; |
410 | } | |
411 | ||
412 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); | |
ce6120cc LG |
413 | ret = snd_ctl_add(card, kcontrol); |
414 | ||
2b97eabc RP |
415 | if (ret < 0) |
416 | goto err; | |
417 | ||
418 | list_for_each_entry(path, &w->sources, list_sink) | |
419 | path->kcontrol = kcontrol; | |
420 | ||
421 | return ret; | |
422 | ||
423 | err: | |
f7d41ae8 | 424 | dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name); |
2b97eabc RP |
425 | return ret; |
426 | } | |
427 | ||
428 | /* create new dapm volume control */ | |
ce6120cc | 429 | static int dapm_new_pga(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
430 | struct snd_soc_dapm_widget *w) |
431 | { | |
a6c65736 | 432 | if (w->num_kcontrols) |
f7d41ae8 JN |
433 | dev_err(w->dapm->dev, |
434 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 435 | |
a6c65736 | 436 | return 0; |
2b97eabc RP |
437 | } |
438 | ||
439 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 440 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
441 | { |
442 | struct snd_soc_dapm_path *p; | |
443 | ||
ce6120cc | 444 | list_for_each_entry(p, &dapm->paths, list) |
2b97eabc RP |
445 | p->walked = 0; |
446 | } | |
447 | ||
9949788b MB |
448 | /* We implement power down on suspend by checking the power state of |
449 | * the ALSA card - when we are suspending the ALSA state for the card | |
450 | * is set to D3. | |
451 | */ | |
452 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
453 | { | |
ce6120cc | 454 | int level = snd_power_get_state(widget->dapm->codec->card->snd_card); |
9949788b | 455 | |
f0fba2ad | 456 | switch (level) { |
9949788b MB |
457 | case SNDRV_CTL_POWER_D3hot: |
458 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 459 | if (widget->ignore_suspend) |
f7d41ae8 JN |
460 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
461 | widget->name); | |
1547aba9 | 462 | return widget->ignore_suspend; |
9949788b MB |
463 | default: |
464 | return 1; | |
465 | } | |
466 | } | |
467 | ||
2b97eabc RP |
468 | /* |
469 | * Recursively check for a completed path to an active or physically connected | |
470 | * output widget. Returns number of complete paths. | |
471 | */ | |
472 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
473 | { | |
474 | struct snd_soc_dapm_path *path; | |
475 | int con = 0; | |
476 | ||
246d0a17 MB |
477 | if (widget->id == snd_soc_dapm_supply) |
478 | return 0; | |
479 | ||
010ff262 MB |
480 | switch (widget->id) { |
481 | case snd_soc_dapm_adc: | |
482 | case snd_soc_dapm_aif_out: | |
483 | if (widget->active) | |
9949788b | 484 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
485 | default: |
486 | break; | |
487 | } | |
2b97eabc RP |
488 | |
489 | if (widget->connected) { | |
490 | /* connected pin ? */ | |
491 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 492 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
493 | |
494 | /* connected jack or spk ? */ | |
495 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 496 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 497 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
498 | } |
499 | ||
500 | list_for_each_entry(path, &widget->sinks, list_source) { | |
501 | if (path->walked) | |
502 | continue; | |
503 | ||
504 | if (path->sink && path->connect) { | |
505 | path->walked = 1; | |
506 | con += is_connected_output_ep(path->sink); | |
507 | } | |
508 | } | |
509 | ||
510 | return con; | |
511 | } | |
512 | ||
513 | /* | |
514 | * Recursively check for a completed path to an active or physically connected | |
515 | * input widget. Returns number of complete paths. | |
516 | */ | |
517 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
518 | { | |
519 | struct snd_soc_dapm_path *path; | |
520 | int con = 0; | |
521 | ||
246d0a17 MB |
522 | if (widget->id == snd_soc_dapm_supply) |
523 | return 0; | |
524 | ||
2b97eabc | 525 | /* active stream ? */ |
010ff262 MB |
526 | switch (widget->id) { |
527 | case snd_soc_dapm_dac: | |
528 | case snd_soc_dapm_aif_in: | |
529 | if (widget->active) | |
9949788b | 530 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
531 | default: |
532 | break; | |
533 | } | |
2b97eabc RP |
534 | |
535 | if (widget->connected) { | |
536 | /* connected pin ? */ | |
537 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 538 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
539 | |
540 | /* connected VMID/Bias for lower pops */ | |
541 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 542 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
543 | |
544 | /* connected jack ? */ | |
eaeae5d9 PU |
545 | if (widget->id == snd_soc_dapm_mic || |
546 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 547 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
548 | } |
549 | ||
550 | list_for_each_entry(path, &widget->sources, list_sink) { | |
551 | if (path->walked) | |
552 | continue; | |
553 | ||
554 | if (path->source && path->connect) { | |
555 | path->walked = 1; | |
556 | con += is_connected_input_ep(path->source); | |
557 | } | |
558 | } | |
559 | ||
560 | return con; | |
561 | } | |
562 | ||
e2be2ccf JN |
563 | /* |
564 | * Handler for generic register modifier widget. | |
565 | */ | |
566 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
567 | struct snd_kcontrol *kcontrol, int event) | |
568 | { | |
569 | unsigned int val; | |
570 | ||
571 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
572 | val = w->on_val; | |
573 | else | |
574 | val = w->off_val; | |
575 | ||
576 | snd_soc_update_bits(w->codec, -(w->reg + 1), | |
577 | w->mask << w->shift, val << w->shift); | |
578 | ||
579 | return 0; | |
580 | } | |
11589418 | 581 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 582 | |
025756ec MB |
583 | /* Standard power change method, used to apply power changes to most |
584 | * widgets. | |
585 | */ | |
586 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) | |
587 | { | |
588 | int ret; | |
589 | ||
590 | /* call any power change event handlers */ | |
591 | if (w->event) | |
f7d41ae8 | 592 | dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n", |
025756ec MB |
593 | w->power ? "on" : "off", |
594 | w->name, w->event_flags); | |
595 | ||
596 | /* power up pre event */ | |
597 | if (w->power && w->event && | |
598 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { | |
599 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); | |
600 | if (ret < 0) | |
601 | return ret; | |
602 | } | |
603 | ||
604 | /* power down pre event */ | |
605 | if (!w->power && w->event && | |
606 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { | |
607 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); | |
608 | if (ret < 0) | |
609 | return ret; | |
610 | } | |
611 | ||
025756ec MB |
612 | dapm_update_bits(w); |
613 | ||
025756ec MB |
614 | /* power up post event */ |
615 | if (w->power && w->event && | |
616 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { | |
617 | ret = w->event(w, | |
618 | NULL, SND_SOC_DAPM_POST_PMU); | |
619 | if (ret < 0) | |
620 | return ret; | |
621 | } | |
622 | ||
623 | /* power down post event */ | |
624 | if (!w->power && w->event && | |
625 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { | |
626 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); | |
627 | if (ret < 0) | |
628 | return ret; | |
629 | } | |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
cd0f2d47 MB |
634 | /* Generic check to see if a widget should be powered. |
635 | */ | |
636 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
637 | { | |
638 | int in, out; | |
639 | ||
640 | in = is_connected_input_ep(w); | |
ce6120cc | 641 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 642 | out = is_connected_output_ep(w); |
ce6120cc | 643 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
644 | return out != 0 && in != 0; |
645 | } | |
646 | ||
6ea31b9f MB |
647 | /* Check to see if an ADC has power */ |
648 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
649 | { | |
650 | int in; | |
651 | ||
652 | if (w->active) { | |
653 | in = is_connected_input_ep(w); | |
ce6120cc | 654 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
655 | return in != 0; |
656 | } else { | |
657 | return dapm_generic_check_power(w); | |
658 | } | |
659 | } | |
660 | ||
661 | /* Check to see if a DAC has power */ | |
662 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
663 | { | |
664 | int out; | |
665 | ||
666 | if (w->active) { | |
667 | out = is_connected_output_ep(w); | |
ce6120cc | 668 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
669 | return out != 0; |
670 | } else { | |
671 | return dapm_generic_check_power(w); | |
672 | } | |
673 | } | |
674 | ||
246d0a17 MB |
675 | /* Check to see if a power supply is needed */ |
676 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
677 | { | |
678 | struct snd_soc_dapm_path *path; | |
679 | int power = 0; | |
680 | ||
681 | /* Check if one of our outputs is connected */ | |
682 | list_for_each_entry(path, &w->sinks, list_source) { | |
215edda3 MB |
683 | if (path->connected && |
684 | !path->connected(path->source, path->sink)) | |
685 | continue; | |
686 | ||
246d0a17 MB |
687 | if (path->sink && path->sink->power_check && |
688 | path->sink->power_check(path->sink)) { | |
689 | power = 1; | |
690 | break; | |
691 | } | |
692 | } | |
693 | ||
ce6120cc | 694 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
695 | |
696 | return power; | |
697 | } | |
698 | ||
38357ab2 MB |
699 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
700 | struct snd_soc_dapm_widget *b, | |
701 | int sort[]) | |
42aa3418 | 702 | { |
d207c68d MB |
703 | if (a->codec != b->codec) |
704 | return (unsigned long)a - (unsigned long)b; | |
38357ab2 MB |
705 | if (sort[a->id] != sort[b->id]) |
706 | return sort[a->id] - sort[b->id]; | |
b22ead2a MB |
707 | if (a->reg != b->reg) |
708 | return a->reg - b->reg; | |
42aa3418 | 709 | |
38357ab2 MB |
710 | return 0; |
711 | } | |
42aa3418 | 712 | |
38357ab2 MB |
713 | /* Insert a widget in order into a DAPM power sequence. */ |
714 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
715 | struct list_head *list, | |
716 | int sort[]) | |
717 | { | |
718 | struct snd_soc_dapm_widget *w; | |
719 | ||
720 | list_for_each_entry(w, list, power_list) | |
721 | if (dapm_seq_compare(new_widget, w, sort) < 0) { | |
722 | list_add_tail(&new_widget->power_list, &w->power_list); | |
723 | return; | |
724 | } | |
725 | ||
726 | list_add_tail(&new_widget->power_list, list); | |
727 | } | |
728 | ||
68f89ad8 MB |
729 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
730 | struct snd_soc_dapm_widget *w, int event) | |
731 | { | |
732 | struct snd_soc_card *card = dapm->card; | |
733 | const char *ev_name; | |
734 | int power, ret; | |
735 | ||
736 | switch (event) { | |
737 | case SND_SOC_DAPM_PRE_PMU: | |
738 | ev_name = "PRE_PMU"; | |
739 | power = 1; | |
740 | break; | |
741 | case SND_SOC_DAPM_POST_PMU: | |
742 | ev_name = "POST_PMU"; | |
743 | power = 1; | |
744 | break; | |
745 | case SND_SOC_DAPM_PRE_PMD: | |
746 | ev_name = "PRE_PMD"; | |
747 | power = 0; | |
748 | break; | |
749 | case SND_SOC_DAPM_POST_PMD: | |
750 | ev_name = "POST_PMD"; | |
751 | power = 0; | |
752 | break; | |
753 | default: | |
754 | BUG(); | |
755 | return; | |
756 | } | |
757 | ||
758 | if (w->power != power) | |
759 | return; | |
760 | ||
761 | if (w->event && (w->event_flags & event)) { | |
762 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
763 | w->name, ev_name); | |
764 | ret = w->event(w, NULL, event); | |
765 | if (ret < 0) | |
766 | pr_err("%s: %s event failed: %d\n", | |
767 | ev_name, w->name, ret); | |
768 | } | |
769 | } | |
770 | ||
b22ead2a | 771 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 772 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 773 | struct list_head *pending) |
163cac06 | 774 | { |
3a45b867 | 775 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
776 | struct snd_soc_dapm_widget *w; |
777 | int reg, power; | |
b22ead2a MB |
778 | unsigned int value = 0; |
779 | unsigned int mask = 0; | |
780 | unsigned int cur_mask; | |
781 | ||
782 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
783 | power_list)->reg; | |
784 | ||
785 | list_for_each_entry(w, pending, power_list) { | |
786 | cur_mask = 1 << w->shift; | |
787 | BUG_ON(reg != w->reg); | |
788 | ||
789 | if (w->invert) | |
790 | power = !w->power; | |
791 | else | |
792 | power = w->power; | |
793 | ||
794 | mask |= cur_mask; | |
795 | if (power) | |
796 | value |= cur_mask; | |
797 | ||
fd8d3bc0 | 798 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
799 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
800 | w->name, reg, value, mask); | |
81628103 | 801 | |
68f89ad8 MB |
802 | /* Check for events */ |
803 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
804 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
805 | } |
806 | ||
807 | if (reg >= 0) { | |
fd8d3bc0 | 808 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 809 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
810 | value, mask, reg, card->pop_time); |
811 | pop_wait(card->pop_time); | |
ce6120cc | 812 | snd_soc_update_bits(dapm->codec, reg, mask, value); |
b22ead2a MB |
813 | } |
814 | ||
81628103 | 815 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
816 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
817 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 818 | } |
b22ead2a | 819 | } |
42aa3418 | 820 | |
b22ead2a MB |
821 | /* Apply a DAPM power sequence. |
822 | * | |
823 | * We walk over a pre-sorted list of widgets to apply power to. In | |
824 | * order to minimise the number of writes to the device required | |
825 | * multiple widgets will be updated in a single write where possible. | |
826 | * Currently anything that requires more than a single write is not | |
827 | * handled. | |
828 | */ | |
ce6120cc LG |
829 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
830 | struct list_head *list, int event, int sort[]) | |
b22ead2a MB |
831 | { |
832 | struct snd_soc_dapm_widget *w, *n; | |
833 | LIST_HEAD(pending); | |
834 | int cur_sort = -1; | |
835 | int cur_reg = SND_SOC_NOPM; | |
163cac06 MB |
836 | int ret; |
837 | ||
b22ead2a MB |
838 | list_for_each_entry_safe(w, n, list, power_list) { |
839 | ret = 0; | |
840 | ||
841 | /* Do we need to apply any queued changes? */ | |
842 | if (sort[w->id] != cur_sort || w->reg != cur_reg) { | |
843 | if (!list_empty(&pending)) | |
ce6120cc | 844 | dapm_seq_run_coalesced(dapm, &pending); |
b22ead2a MB |
845 | |
846 | INIT_LIST_HEAD(&pending); | |
847 | cur_sort = -1; | |
848 | cur_reg = SND_SOC_NOPM; | |
849 | } | |
850 | ||
163cac06 MB |
851 | switch (w->id) { |
852 | case snd_soc_dapm_pre: | |
853 | if (!w->event) | |
b22ead2a MB |
854 | list_for_each_entry_safe_continue(w, n, list, |
855 | power_list); | |
163cac06 | 856 | |
b22ead2a | 857 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
858 | ret = w->event(w, |
859 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 860 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
861 | ret = w->event(w, |
862 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
863 | break; |
864 | ||
865 | case snd_soc_dapm_post: | |
866 | if (!w->event) | |
b22ead2a MB |
867 | list_for_each_entry_safe_continue(w, n, list, |
868 | power_list); | |
163cac06 | 869 | |
b22ead2a | 870 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
871 | ret = w->event(w, |
872 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 873 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
874 | ret = w->event(w, |
875 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
876 | break; |
877 | ||
b22ead2a MB |
878 | case snd_soc_dapm_input: |
879 | case snd_soc_dapm_output: | |
880 | case snd_soc_dapm_hp: | |
881 | case snd_soc_dapm_mic: | |
882 | case snd_soc_dapm_line: | |
883 | case snd_soc_dapm_spk: | |
884 | /* No register support currently */ | |
163cac06 | 885 | ret = dapm_generic_apply_power(w); |
163cac06 | 886 | break; |
b22ead2a MB |
887 | |
888 | default: | |
81628103 MB |
889 | /* Queue it up for application */ |
890 | cur_sort = sort[w->id]; | |
891 | cur_reg = w->reg; | |
892 | list_move(&w->power_list, &pending); | |
893 | break; | |
163cac06 | 894 | } |
b22ead2a MB |
895 | |
896 | if (ret < 0) | |
f7d41ae8 JN |
897 | dev_err(w->dapm->dev, |
898 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 899 | } |
b22ead2a MB |
900 | |
901 | if (!list_empty(&pending)) | |
ce6120cc | 902 | dapm_seq_run_coalesced(dapm, &pending); |
42aa3418 MB |
903 | } |
904 | ||
2b97eabc RP |
905 | /* |
906 | * Scan each dapm widget for complete audio path. | |
907 | * A complete path is a route that has valid endpoints i.e.:- | |
908 | * | |
909 | * o DAC to output pin. | |
910 | * o Input Pin to ADC. | |
911 | * o Input pin to Output pin (bypass, sidetone) | |
912 | * o DAC to ADC (loopback). | |
913 | */ | |
ce6120cc | 914 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 915 | { |
ce6120cc | 916 | struct snd_soc_card *card = dapm->codec->card; |
2b97eabc | 917 | struct snd_soc_dapm_widget *w; |
291f3bbc MB |
918 | LIST_HEAD(up_list); |
919 | LIST_HEAD(down_list); | |
6d3ddc81 | 920 | int ret = 0; |
38357ab2 | 921 | int power; |
452c5eaa | 922 | int sys_power = 0; |
6d3ddc81 | 923 | |
6d3ddc81 MB |
924 | /* Check which widgets we need to power and store them in |
925 | * lists indicating if they should be powered up or down. | |
926 | */ | |
ce6120cc | 927 | list_for_each_entry(w, &dapm->widgets, list) { |
6d3ddc81 MB |
928 | switch (w->id) { |
929 | case snd_soc_dapm_pre: | |
291f3bbc | 930 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
931 | break; |
932 | case snd_soc_dapm_post: | |
291f3bbc | 933 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 MB |
934 | break; |
935 | ||
936 | default: | |
937 | if (!w->power_check) | |
938 | continue; | |
939 | ||
9949788b | 940 | if (!w->force) |
50b6bce5 | 941 | power = w->power_check(w); |
9949788b MB |
942 | else |
943 | power = 1; | |
944 | if (power) | |
945 | sys_power = 1; | |
452c5eaa | 946 | |
6d3ddc81 MB |
947 | if (w->power == power) |
948 | continue; | |
949 | ||
950 | if (power) | |
291f3bbc | 951 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 | 952 | else |
291f3bbc | 953 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
954 | |
955 | w->power = power; | |
956 | break; | |
957 | } | |
2b97eabc RP |
958 | } |
959 | ||
b14b76a5 MB |
960 | /* If there are no DAPM widgets then try to figure out power from the |
961 | * event type. | |
962 | */ | |
ce6120cc | 963 | if (list_empty(&dapm->widgets)) { |
b14b76a5 MB |
964 | switch (event) { |
965 | case SND_SOC_DAPM_STREAM_START: | |
966 | case SND_SOC_DAPM_STREAM_RESUME: | |
967 | sys_power = 1; | |
968 | break; | |
50b6bce5 MB |
969 | case SND_SOC_DAPM_STREAM_SUSPEND: |
970 | sys_power = 0; | |
971 | break; | |
b14b76a5 | 972 | case SND_SOC_DAPM_STREAM_NOP: |
ce6120cc | 973 | switch (dapm->bias_level) { |
a96ca338 MB |
974 | case SND_SOC_BIAS_STANDBY: |
975 | case SND_SOC_BIAS_OFF: | |
976 | sys_power = 0; | |
977 | break; | |
978 | default: | |
979 | sys_power = 1; | |
980 | break; | |
981 | } | |
50b6bce5 | 982 | break; |
b14b76a5 MB |
983 | default: |
984 | break; | |
985 | } | |
986 | } | |
987 | ||
ce6120cc LG |
988 | if (sys_power && dapm->bias_level == SND_SOC_BIAS_OFF) { |
989 | ret = snd_soc_dapm_set_bias_level(card, dapm, | |
a96ca338 MB |
990 | SND_SOC_BIAS_STANDBY); |
991 | if (ret != 0) | |
f7d41ae8 JN |
992 | dev_err(dapm->dev, |
993 | "Failed to turn on bias: %d\n", ret); | |
a96ca338 MB |
994 | } |
995 | ||
452c5eaa | 996 | /* If we're changing to all on or all off then prepare */ |
ce6120cc LG |
997 | if ((sys_power && dapm->bias_level == SND_SOC_BIAS_STANDBY) || |
998 | (!sys_power && dapm->bias_level == SND_SOC_BIAS_ON)) { | |
999 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_PREPARE); | |
452c5eaa | 1000 | if (ret != 0) |
f7d41ae8 JN |
1001 | dev_err(dapm->dev, |
1002 | "Failed to prepare bias: %d\n", ret); | |
452c5eaa MB |
1003 | } |
1004 | ||
6d3ddc81 | 1005 | /* Power down widgets first; try to avoid amplifying pops. */ |
ce6120cc | 1006 | dapm_seq_run(dapm, &down_list, event, dapm_down_seq); |
2b97eabc | 1007 | |
6d3ddc81 | 1008 | /* Now power up. */ |
ce6120cc | 1009 | dapm_seq_run(dapm, &up_list, event, dapm_up_seq); |
2b97eabc | 1010 | |
452c5eaa | 1011 | /* If we just powered the last thing off drop to standby bias */ |
ce6120cc LG |
1012 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) { |
1013 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_STANDBY); | |
452c5eaa | 1014 | if (ret != 0) |
f7d41ae8 JN |
1015 | dev_err(dapm->dev, |
1016 | "Failed to apply standby bias: %d\n", ret); | |
452c5eaa MB |
1017 | } |
1018 | ||
a96ca338 | 1019 | /* If we're in standby and can support bias off then do that */ |
ce6120cc LG |
1020 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY && |
1021 | dapm->idle_bias_off) { | |
1022 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_OFF); | |
a96ca338 | 1023 | if (ret != 0) |
f7d41ae8 JN |
1024 | dev_err(dapm->dev, |
1025 | "Failed to turn off bias: %d\n", ret); | |
a96ca338 MB |
1026 | } |
1027 | ||
452c5eaa | 1028 | /* If we just powered up then move to active bias */ |
ce6120cc LG |
1029 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE && sys_power) { |
1030 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_ON); | |
452c5eaa | 1031 | if (ret != 0) |
f7d41ae8 JN |
1032 | dev_err(dapm->dev, |
1033 | "Failed to apply active bias: %d\n", ret); | |
452c5eaa MB |
1034 | } |
1035 | ||
fd8d3bc0 JN |
1036 | pop_dbg(dapm->dev, card->pop_time, |
1037 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1038 | pop_wait(card->pop_time); |
cb507e7e | 1039 | |
42aa3418 | 1040 | return 0; |
2b97eabc RP |
1041 | } |
1042 | ||
79fb9387 MB |
1043 | #ifdef CONFIG_DEBUG_FS |
1044 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1045 | { | |
1046 | file->private_data = inode->i_private; | |
1047 | return 0; | |
1048 | } | |
1049 | ||
1050 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1051 | char __user *user_buf, | |
1052 | size_t count, loff_t *ppos) | |
1053 | { | |
1054 | struct snd_soc_dapm_widget *w = file->private_data; | |
1055 | char *buf; | |
1056 | int in, out; | |
1057 | ssize_t ret; | |
1058 | struct snd_soc_dapm_path *p = NULL; | |
1059 | ||
1060 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1061 | if (!buf) | |
1062 | return -ENOMEM; | |
1063 | ||
1064 | in = is_connected_input_ep(w); | |
ce6120cc | 1065 | dapm_clear_walk(w->dapm); |
79fb9387 | 1066 | out = is_connected_output_ep(w); |
ce6120cc | 1067 | dapm_clear_walk(w->dapm); |
79fb9387 | 1068 | |
d033c36a | 1069 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1070 | w->name, w->power ? "On" : "Off", in, out); |
1071 | ||
d033c36a MB |
1072 | if (w->reg >= 0) |
1073 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1074 | " - R%d(0x%x) bit %d", | |
1075 | w->reg, w->reg, w->shift); | |
1076 | ||
1077 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1078 | ||
3eef08ba MB |
1079 | if (w->sname) |
1080 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1081 | w->sname, | |
1082 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1083 | |
1084 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1085 | if (p->connected && !p->connected(w, p->sink)) |
1086 | continue; | |
1087 | ||
79fb9387 MB |
1088 | if (p->connect) |
1089 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1090 | " in %s %s\n", | |
1091 | p->name ? p->name : "static", | |
1092 | p->source->name); | |
1093 | } | |
1094 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1095 | if (p->connected && !p->connected(w, p->sink)) |
1096 | continue; | |
1097 | ||
79fb9387 MB |
1098 | if (p->connect) |
1099 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1100 | " out %s %s\n", | |
1101 | p->name ? p->name : "static", | |
1102 | p->sink->name); | |
1103 | } | |
1104 | ||
1105 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1106 | ||
1107 | kfree(buf); | |
1108 | return ret; | |
1109 | } | |
1110 | ||
1111 | static const struct file_operations dapm_widget_power_fops = { | |
1112 | .open = dapm_widget_power_open_file, | |
1113 | .read = dapm_widget_power_read_file, | |
6038f373 | 1114 | .llseek = default_llseek, |
79fb9387 MB |
1115 | }; |
1116 | ||
ce6120cc | 1117 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1118 | { |
1119 | struct snd_soc_dapm_widget *w; | |
1120 | struct dentry *d; | |
1121 | ||
ce6120cc | 1122 | if (!dapm->debugfs_dapm) |
79fb9387 MB |
1123 | return; |
1124 | ||
ce6120cc | 1125 | list_for_each_entry(w, &dapm->widgets, list) { |
79fb9387 MB |
1126 | if (!w->name) |
1127 | continue; | |
1128 | ||
1129 | d = debugfs_create_file(w->name, 0444, | |
ce6120cc | 1130 | dapm->debugfs_dapm, w, |
79fb9387 MB |
1131 | &dapm_widget_power_fops); |
1132 | if (!d) | |
f7d41ae8 JN |
1133 | dev_warn(w->dapm->dev, |
1134 | "ASoC: Failed to create %s debugfs file\n", | |
1135 | w->name); | |
79fb9387 MB |
1136 | } |
1137 | } | |
1138 | #else | |
ce6120cc | 1139 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1140 | { |
1141 | } | |
1142 | #endif | |
1143 | ||
2b97eabc | 1144 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1145 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1146 | struct snd_kcontrol *kcontrol, int change, |
1147 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1148 | { |
1149 | struct snd_soc_dapm_path *path; | |
1150 | int found = 0; | |
1151 | ||
eff317d0 PU |
1152 | if (widget->id != snd_soc_dapm_mux && |
1153 | widget->id != snd_soc_dapm_value_mux) | |
2b97eabc RP |
1154 | return -ENODEV; |
1155 | ||
3a65577d | 1156 | if (!change) |
2b97eabc RP |
1157 | return 0; |
1158 | ||
1159 | /* find dapm widget path assoc with kcontrol */ | |
ce6120cc | 1160 | list_for_each_entry(path, &widget->dapm->paths, list) { |
2b97eabc RP |
1161 | if (path->kcontrol != kcontrol) |
1162 | continue; | |
1163 | ||
cb01e2b9 | 1164 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1165 | continue; |
1166 | ||
1167 | found = 1; | |
1168 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1169 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1170 | path->connect = 1; /* new connection */ |
1171 | else | |
1172 | path->connect = 0; /* old connection must be powered down */ | |
1173 | } | |
1174 | ||
b91b8fa0 | 1175 | if (found) |
ce6120cc | 1176 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1177 | |
1178 | return 0; | |
1179 | } | |
2b97eabc | 1180 | |
1b075e3f | 1181 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1182 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1183 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1184 | { |
1185 | struct snd_soc_dapm_path *path; | |
1186 | int found = 0; | |
1187 | ||
1b075e3f | 1188 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1189 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1190 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1191 | return -ENODEV; |
1192 | ||
2b97eabc | 1193 | /* find dapm widget path assoc with kcontrol */ |
ce6120cc | 1194 | list_for_each_entry(path, &widget->dapm->paths, list) { |
2b97eabc RP |
1195 | if (path->kcontrol != kcontrol) |
1196 | continue; | |
1197 | ||
1198 | /* found, now check type */ | |
1199 | found = 1; | |
283375ce | 1200 | path->connect = connect; |
2b97eabc RP |
1201 | break; |
1202 | } | |
1203 | ||
b91b8fa0 | 1204 | if (found) |
ce6120cc | 1205 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1206 | |
1207 | return 0; | |
1208 | } | |
2b97eabc RP |
1209 | |
1210 | /* show dapm widget status in sys fs */ | |
1211 | static ssize_t dapm_widget_show(struct device *dev, | |
1212 | struct device_attribute *attr, char *buf) | |
1213 | { | |
f0fba2ad LG |
1214 | struct snd_soc_pcm_runtime *rtd = |
1215 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1216 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1217 | struct snd_soc_dapm_widget *w; |
1218 | int count = 0; | |
1219 | char *state = "not set"; | |
1220 | ||
ce6120cc | 1221 | list_for_each_entry(w, &codec->dapm.widgets, list) { |
2b97eabc RP |
1222 | |
1223 | /* only display widgets that burnm power */ | |
1224 | switch (w->id) { | |
1225 | case snd_soc_dapm_hp: | |
1226 | case snd_soc_dapm_mic: | |
1227 | case snd_soc_dapm_spk: | |
1228 | case snd_soc_dapm_line: | |
1229 | case snd_soc_dapm_micbias: | |
1230 | case snd_soc_dapm_dac: | |
1231 | case snd_soc_dapm_adc: | |
1232 | case snd_soc_dapm_pga: | |
1233 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1234 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1235 | case snd_soc_dapm_supply: |
2b97eabc RP |
1236 | if (w->name) |
1237 | count += sprintf(buf + count, "%s: %s\n", | |
1238 | w->name, w->power ? "On":"Off"); | |
1239 | break; | |
1240 | default: | |
1241 | break; | |
1242 | } | |
1243 | } | |
1244 | ||
ce6120cc | 1245 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1246 | case SND_SOC_BIAS_ON: |
1247 | state = "On"; | |
2b97eabc | 1248 | break; |
0be9898a MB |
1249 | case SND_SOC_BIAS_PREPARE: |
1250 | state = "Prepare"; | |
2b97eabc | 1251 | break; |
0be9898a MB |
1252 | case SND_SOC_BIAS_STANDBY: |
1253 | state = "Standby"; | |
2b97eabc | 1254 | break; |
0be9898a MB |
1255 | case SND_SOC_BIAS_OFF: |
1256 | state = "Off"; | |
2b97eabc RP |
1257 | break; |
1258 | } | |
1259 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1260 | ||
1261 | return count; | |
1262 | } | |
1263 | ||
1264 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1265 | ||
1266 | int snd_soc_dapm_sys_add(struct device *dev) | |
1267 | { | |
12ef193d | 1268 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1269 | } |
1270 | ||
1271 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1272 | { | |
aef90843 | 1273 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1274 | } |
1275 | ||
1276 | /* free all dapm widgets and resources */ | |
ce6120cc | 1277 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1278 | { |
1279 | struct snd_soc_dapm_widget *w, *next_w; | |
1280 | struct snd_soc_dapm_path *p, *next_p; | |
1281 | ||
ce6120cc | 1282 | list_for_each_entry_safe(w, next_w, &dapm->widgets, list) { |
2b97eabc RP |
1283 | list_del(&w->list); |
1284 | kfree(w); | |
1285 | } | |
1286 | ||
ce6120cc | 1287 | list_for_each_entry_safe(p, next_p, &dapm->paths, list) { |
2b97eabc RP |
1288 | list_del(&p->list); |
1289 | kfree(p->long_name); | |
1290 | kfree(p); | |
1291 | } | |
1292 | } | |
1293 | ||
ce6120cc | 1294 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, |
1649923d | 1295 | const char *pin, int status) |
a5302181 LG |
1296 | { |
1297 | struct snd_soc_dapm_widget *w; | |
1298 | ||
ce6120cc | 1299 | list_for_each_entry(w, &dapm->widgets, list) { |
a5302181 | 1300 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
1301 | dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n", |
1302 | pin, status); | |
a5302181 | 1303 | w->connected = status; |
5b9e87cc MB |
1304 | /* Allow disabling of forced pins */ |
1305 | if (status == 0) | |
1306 | w->force = 0; | |
a5302181 LG |
1307 | return 0; |
1308 | } | |
1309 | } | |
1310 | ||
f7d41ae8 | 1311 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
a5302181 LG |
1312 | return -EINVAL; |
1313 | } | |
1314 | ||
2b97eabc | 1315 | /** |
a5302181 | 1316 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1317 | * @dapm: DAPM context |
2b97eabc RP |
1318 | * |
1319 | * Walks all dapm audio paths and powers widgets according to their | |
1320 | * stream or path usage. | |
1321 | * | |
1322 | * Returns 0 for success. | |
1323 | */ | |
ce6120cc | 1324 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1325 | { |
ce6120cc | 1326 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1327 | } |
a5302181 | 1328 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1329 | |
ce6120cc | 1330 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1331 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1332 | { |
1333 | struct snd_soc_dapm_path *path; | |
1334 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
215edda3 MB |
1335 | const char *sink = route->sink; |
1336 | const char *control = route->control; | |
1337 | const char *source = route->source; | |
2b97eabc RP |
1338 | int ret = 0; |
1339 | ||
1340 | /* find src and dest widgets */ | |
ce6120cc | 1341 | list_for_each_entry(w, &dapm->widgets, list) { |
2b97eabc RP |
1342 | |
1343 | if (!wsink && !(strcmp(w->name, sink))) { | |
1344 | wsink = w; | |
1345 | continue; | |
1346 | } | |
1347 | if (!wsource && !(strcmp(w->name, source))) { | |
1348 | wsource = w; | |
1349 | } | |
1350 | } | |
1351 | ||
1352 | if (wsource == NULL || wsink == NULL) | |
1353 | return -ENODEV; | |
1354 | ||
1355 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1356 | if (!path) | |
1357 | return -ENOMEM; | |
1358 | ||
1359 | path->source = wsource; | |
1360 | path->sink = wsink; | |
215edda3 | 1361 | path->connected = route->connected; |
2b97eabc RP |
1362 | INIT_LIST_HEAD(&path->list); |
1363 | INIT_LIST_HEAD(&path->list_source); | |
1364 | INIT_LIST_HEAD(&path->list_sink); | |
1365 | ||
1366 | /* check for external widgets */ | |
1367 | if (wsink->id == snd_soc_dapm_input) { | |
1368 | if (wsource->id == snd_soc_dapm_micbias || | |
1369 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1370 | wsource->id == snd_soc_dapm_line || |
1371 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1372 | wsink->ext = 1; |
1373 | } | |
1374 | if (wsource->id == snd_soc_dapm_output) { | |
1375 | if (wsink->id == snd_soc_dapm_spk || | |
1376 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1377 | wsink->id == snd_soc_dapm_line || |
1378 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1379 | wsource->ext = 1; |
1380 | } | |
1381 | ||
1382 | /* connect static paths */ | |
1383 | if (control == NULL) { | |
ce6120cc | 1384 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1385 | list_add(&path->list_sink, &wsink->sources); |
1386 | list_add(&path->list_source, &wsource->sinks); | |
1387 | path->connect = 1; | |
1388 | return 0; | |
1389 | } | |
1390 | ||
1391 | /* connect dynamic paths */ | |
1392 | switch(wsink->id) { | |
1393 | case snd_soc_dapm_adc: | |
1394 | case snd_soc_dapm_dac: | |
1395 | case snd_soc_dapm_pga: | |
1396 | case snd_soc_dapm_input: | |
1397 | case snd_soc_dapm_output: | |
1398 | case snd_soc_dapm_micbias: | |
1399 | case snd_soc_dapm_vmid: | |
1400 | case snd_soc_dapm_pre: | |
1401 | case snd_soc_dapm_post: | |
246d0a17 | 1402 | case snd_soc_dapm_supply: |
010ff262 MB |
1403 | case snd_soc_dapm_aif_in: |
1404 | case snd_soc_dapm_aif_out: | |
ce6120cc | 1405 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1406 | list_add(&path->list_sink, &wsink->sources); |
1407 | list_add(&path->list_source, &wsource->sinks); | |
1408 | path->connect = 1; | |
1409 | return 0; | |
1410 | case snd_soc_dapm_mux: | |
74155556 | 1411 | case snd_soc_dapm_value_mux: |
ce6120cc | 1412 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
2b97eabc RP |
1413 | &wsink->kcontrols[0]); |
1414 | if (ret != 0) | |
1415 | goto err; | |
1416 | break; | |
1417 | case snd_soc_dapm_switch: | |
1418 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1419 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1420 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1421 | if (ret != 0) |
1422 | goto err; | |
1423 | break; | |
1424 | case snd_soc_dapm_hp: | |
1425 | case snd_soc_dapm_mic: | |
1426 | case snd_soc_dapm_line: | |
1427 | case snd_soc_dapm_spk: | |
ce6120cc | 1428 | list_add(&path->list, &dapm->paths); |
2b97eabc RP |
1429 | list_add(&path->list_sink, &wsink->sources); |
1430 | list_add(&path->list_source, &wsource->sinks); | |
1431 | path->connect = 0; | |
1432 | return 0; | |
1433 | } | |
1434 | return 0; | |
1435 | ||
1436 | err: | |
f7d41ae8 JN |
1437 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1438 | source, control, sink); | |
2b97eabc RP |
1439 | kfree(path); |
1440 | return ret; | |
1441 | } | |
105f1c28 | 1442 | |
105f1c28 MB |
1443 | /** |
1444 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1445 | * @dapm: DAPM context |
105f1c28 MB |
1446 | * @route: audio routes |
1447 | * @num: number of routes | |
1448 | * | |
1449 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1450 | * the widget receiving the audio signal, whilst the source is the sender | |
1451 | * of the audio signal. | |
1452 | * | |
1453 | * Returns 0 for success else error. On error all resources can be freed | |
1454 | * with a call to snd_soc_card_free(). | |
1455 | */ | |
ce6120cc | 1456 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1457 | const struct snd_soc_dapm_route *route, int num) |
1458 | { | |
1459 | int i, ret; | |
1460 | ||
1461 | for (i = 0; i < num; i++) { | |
ce6120cc | 1462 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1463 | if (ret < 0) { |
f7d41ae8 JN |
1464 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1465 | route->source, route->sink); | |
105f1c28 MB |
1466 | return ret; |
1467 | } | |
1468 | route++; | |
1469 | } | |
1470 | ||
1471 | return 0; | |
1472 | } | |
1473 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1474 | ||
2b97eabc RP |
1475 | /** |
1476 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 1477 | * @dapm: DAPM context |
2b97eabc RP |
1478 | * |
1479 | * Checks the codec for any new dapm widgets and creates them if found. | |
1480 | * | |
1481 | * Returns 0 for success. | |
1482 | */ | |
ce6120cc | 1483 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1484 | { |
1485 | struct snd_soc_dapm_widget *w; | |
1486 | ||
ce6120cc | 1487 | list_for_each_entry(w, &dapm->widgets, list) |
2b97eabc RP |
1488 | { |
1489 | if (w->new) | |
1490 | continue; | |
1491 | ||
1492 | switch(w->id) { | |
1493 | case snd_soc_dapm_switch: | |
1494 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1495 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 1496 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1497 | dapm_new_mixer(dapm, w); |
2b97eabc RP |
1498 | break; |
1499 | case snd_soc_dapm_mux: | |
2e72f8e3 | 1500 | case snd_soc_dapm_value_mux: |
b75576d7 | 1501 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1502 | dapm_new_mux(dapm, w); |
2b97eabc RP |
1503 | break; |
1504 | case snd_soc_dapm_adc: | |
010ff262 | 1505 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
1506 | w->power_check = dapm_adc_check_power; |
1507 | break; | |
2b97eabc | 1508 | case snd_soc_dapm_dac: |
010ff262 | 1509 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
1510 | w->power_check = dapm_dac_check_power; |
1511 | break; | |
2b97eabc | 1512 | case snd_soc_dapm_pga: |
b75576d7 | 1513 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1514 | dapm_new_pga(dapm, w); |
2b97eabc RP |
1515 | break; |
1516 | case snd_soc_dapm_input: | |
1517 | case snd_soc_dapm_output: | |
1518 | case snd_soc_dapm_micbias: | |
1519 | case snd_soc_dapm_spk: | |
1520 | case snd_soc_dapm_hp: | |
1521 | case snd_soc_dapm_mic: | |
1522 | case snd_soc_dapm_line: | |
b75576d7 MB |
1523 | w->power_check = dapm_generic_check_power; |
1524 | break; | |
246d0a17 MB |
1525 | case snd_soc_dapm_supply: |
1526 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
1527 | case snd_soc_dapm_vmid: |
1528 | case snd_soc_dapm_pre: | |
1529 | case snd_soc_dapm_post: | |
1530 | break; | |
1531 | } | |
1532 | w->new = 1; | |
1533 | } | |
1534 | ||
ce6120cc | 1535 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1536 | return 0; |
1537 | } | |
1538 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
1539 | ||
1540 | /** | |
1541 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
1542 | * @kcontrol: mixer control | |
ac11a2b3 | 1543 | * @ucontrol: control element information |
2b97eabc RP |
1544 | * |
1545 | * Callback to get the value of a dapm mixer control. | |
1546 | * | |
1547 | * Returns 0 for success. | |
1548 | */ | |
1549 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
1550 | struct snd_ctl_elem_value *ucontrol) | |
1551 | { | |
1552 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1553 | struct soc_mixer_control *mc = |
1554 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1555 | unsigned int reg = mc->reg; |
1556 | unsigned int shift = mc->shift; | |
1557 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1558 | int max = mc->max; |
815ecf8d JS |
1559 | unsigned int invert = mc->invert; |
1560 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 1561 | |
2b97eabc RP |
1562 | ucontrol->value.integer.value[0] = |
1563 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
1564 | if (shift != rshift) | |
1565 | ucontrol->value.integer.value[1] = | |
1566 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
1567 | if (invert) { | |
1568 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1569 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
1570 | if (shift != rshift) |
1571 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1572 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
1573 | } |
1574 | ||
1575 | return 0; | |
1576 | } | |
1577 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
1578 | ||
1579 | /** | |
1580 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
1581 | * @kcontrol: mixer control | |
ac11a2b3 | 1582 | * @ucontrol: control element information |
2b97eabc RP |
1583 | * |
1584 | * Callback to set the value of a dapm mixer control. | |
1585 | * | |
1586 | * Returns 0 for success. | |
1587 | */ | |
1588 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
1589 | struct snd_ctl_elem_value *ucontrol) | |
1590 | { | |
1591 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1592 | struct soc_mixer_control *mc = |
1593 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1594 | unsigned int reg = mc->reg; |
1595 | unsigned int shift = mc->shift; | |
1596 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1597 | int max = mc->max; |
815ecf8d JS |
1598 | unsigned int mask = (1 << fls(max)) - 1; |
1599 | unsigned int invert = mc->invert; | |
46f5822f | 1600 | unsigned int val, val2, val_mask; |
283375ce | 1601 | int connect; |
2b97eabc RP |
1602 | int ret; |
1603 | ||
1604 | val = (ucontrol->value.integer.value[0] & mask); | |
1605 | ||
1606 | if (invert) | |
a7a4ac86 | 1607 | val = max - val; |
2b97eabc RP |
1608 | val_mask = mask << shift; |
1609 | val = val << shift; | |
1610 | if (shift != rshift) { | |
1611 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1612 | if (invert) | |
a7a4ac86 | 1613 | val2 = max - val2; |
2b97eabc RP |
1614 | val_mask |= mask << rshift; |
1615 | val |= val2 << rshift; | |
1616 | } | |
1617 | ||
1618 | mutex_lock(&widget->codec->mutex); | |
1619 | widget->value = val; | |
1620 | ||
283375ce MB |
1621 | if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) { |
1622 | if (val) | |
1623 | /* new connection */ | |
1624 | connect = invert ? 0:1; | |
1625 | else | |
1626 | /* old connection must be powered down */ | |
1627 | connect = invert ? 1:0; | |
1628 | ||
1629 | dapm_mixer_update_power(widget, kcontrol, connect); | |
1630 | } | |
1631 | ||
2b97eabc RP |
1632 | if (widget->event) { |
1633 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
9af6d956 LG |
1634 | ret = widget->event(widget, kcontrol, |
1635 | SND_SOC_DAPM_PRE_REG); | |
1636 | if (ret < 0) { | |
1637 | ret = 1; | |
2b97eabc | 1638 | goto out; |
9af6d956 | 1639 | } |
2b97eabc RP |
1640 | } |
1641 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); | |
1642 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
9af6d956 LG |
1643 | ret = widget->event(widget, kcontrol, |
1644 | SND_SOC_DAPM_POST_REG); | |
2b97eabc RP |
1645 | } else |
1646 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); | |
1647 | ||
1648 | out: | |
1649 | mutex_unlock(&widget->codec->mutex); | |
1650 | return ret; | |
1651 | } | |
1652 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
1653 | ||
1654 | /** | |
1655 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
1656 | * @kcontrol: mixer control | |
ac11a2b3 | 1657 | * @ucontrol: control element information |
2b97eabc RP |
1658 | * |
1659 | * Callback to get the value of a dapm enumerated double mixer control. | |
1660 | * | |
1661 | * Returns 0 for success. | |
1662 | */ | |
1663 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
1664 | struct snd_ctl_elem_value *ucontrol) | |
1665 | { | |
1666 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1667 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1668 | unsigned int val, bitmask; |
2b97eabc | 1669 | |
f8ba0b7b | 1670 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
1671 | ; |
1672 | val = snd_soc_read(widget->codec, e->reg); | |
1673 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
1674 | if (e->shift_l != e->shift_r) | |
1675 | ucontrol->value.enumerated.item[1] = | |
1676 | (val >> e->shift_r) & (bitmask - 1); | |
1677 | ||
1678 | return 0; | |
1679 | } | |
1680 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
1681 | ||
1682 | /** | |
1683 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
1684 | * @kcontrol: mixer control | |
ac11a2b3 | 1685 | * @ucontrol: control element information |
2b97eabc RP |
1686 | * |
1687 | * Callback to set the value of a dapm enumerated double mixer control. | |
1688 | * | |
1689 | * Returns 0 for success. | |
1690 | */ | |
1691 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
1692 | struct snd_ctl_elem_value *ucontrol) | |
1693 | { | |
1694 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1695 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
3a65577d | 1696 | unsigned int val, mux, change; |
46f5822f | 1697 | unsigned int mask, bitmask; |
2b97eabc RP |
1698 | int ret = 0; |
1699 | ||
f8ba0b7b | 1700 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 1701 | ; |
f8ba0b7b | 1702 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
1703 | return -EINVAL; |
1704 | mux = ucontrol->value.enumerated.item[0]; | |
1705 | val = mux << e->shift_l; | |
1706 | mask = (bitmask - 1) << e->shift_l; | |
1707 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1708 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
1709 | return -EINVAL; |
1710 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1711 | mask |= (bitmask - 1) << e->shift_r; | |
1712 | } | |
1713 | ||
1714 | mutex_lock(&widget->codec->mutex); | |
1715 | widget->value = val; | |
3a65577d MB |
1716 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1717 | dapm_mux_update_power(widget, kcontrol, change, mux, e); | |
1642e3d4 MB |
1718 | |
1719 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
1720 | ret = widget->event(widget, | |
1721 | kcontrol, SND_SOC_DAPM_PRE_REG); | |
1722 | if (ret < 0) | |
1723 | goto out; | |
1724 | } | |
1725 | ||
1726 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); | |
1727 | ||
1728 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
1729 | ret = widget->event(widget, | |
1730 | kcontrol, SND_SOC_DAPM_POST_REG); | |
2b97eabc RP |
1731 | |
1732 | out: | |
1733 | mutex_unlock(&widget->codec->mutex); | |
1734 | return ret; | |
1735 | } | |
1736 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
1737 | ||
d2b247a8 MB |
1738 | /** |
1739 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
1740 | * @kcontrol: mixer control | |
1741 | * @ucontrol: control element information | |
1742 | * | |
1743 | * Returns 0 for success. | |
1744 | */ | |
1745 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
1746 | struct snd_ctl_elem_value *ucontrol) | |
1747 | { | |
1748 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1749 | ||
1750 | ucontrol->value.enumerated.item[0] = widget->value; | |
1751 | ||
1752 | return 0; | |
1753 | } | |
1754 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
1755 | ||
1756 | /** | |
1757 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
1758 | * @kcontrol: mixer control | |
1759 | * @ucontrol: control element information | |
1760 | * | |
1761 | * Returns 0 for success. | |
1762 | */ | |
1763 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
1764 | struct snd_ctl_elem_value *ucontrol) | |
1765 | { | |
1766 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1767 | struct soc_enum *e = | |
1768 | (struct soc_enum *)kcontrol->private_value; | |
1769 | int change; | |
1770 | int ret = 0; | |
1771 | ||
1772 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
1773 | return -EINVAL; | |
1774 | ||
1775 | mutex_lock(&widget->codec->mutex); | |
1776 | ||
1777 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
1778 | widget->value = ucontrol->value.enumerated.item[0]; | |
1779 | dapm_mux_update_power(widget, kcontrol, change, widget->value, e); | |
1780 | ||
1781 | mutex_unlock(&widget->codec->mutex); | |
1782 | return ret; | |
1783 | } | |
1784 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
1785 | ||
2e72f8e3 PU |
1786 | /** |
1787 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
1788 | * callback | |
1789 | * @kcontrol: mixer control | |
1790 | * @ucontrol: control element information | |
1791 | * | |
1792 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
1793 | * | |
1794 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1795 | * used for handling bitfield coded enumeration for example. | |
1796 | * | |
1797 | * Returns 0 for success. | |
1798 | */ | |
1799 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1800 | struct snd_ctl_elem_value *ucontrol) | |
1801 | { | |
1802 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1803 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 1804 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
1805 | |
1806 | reg_val = snd_soc_read(widget->codec, e->reg); | |
1807 | val = (reg_val >> e->shift_l) & e->mask; | |
1808 | for (mux = 0; mux < e->max; mux++) { | |
1809 | if (val == e->values[mux]) | |
1810 | break; | |
1811 | } | |
1812 | ucontrol->value.enumerated.item[0] = mux; | |
1813 | if (e->shift_l != e->shift_r) { | |
1814 | val = (reg_val >> e->shift_r) & e->mask; | |
1815 | for (mux = 0; mux < e->max; mux++) { | |
1816 | if (val == e->values[mux]) | |
1817 | break; | |
1818 | } | |
1819 | ucontrol->value.enumerated.item[1] = mux; | |
1820 | } | |
1821 | ||
1822 | return 0; | |
1823 | } | |
1824 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
1825 | ||
1826 | /** | |
1827 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
1828 | * callback | |
1829 | * @kcontrol: mixer control | |
1830 | * @ucontrol: control element information | |
1831 | * | |
1832 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
1833 | * | |
1834 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1835 | * used for handling bitfield coded enumeration for example. | |
1836 | * | |
1837 | * Returns 0 for success. | |
1838 | */ | |
1839 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
1840 | struct snd_ctl_elem_value *ucontrol) | |
1841 | { | |
1842 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1843 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 1844 | unsigned int val, mux, change; |
46f5822f | 1845 | unsigned int mask; |
2e72f8e3 PU |
1846 | int ret = 0; |
1847 | ||
1848 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1849 | return -EINVAL; | |
1850 | mux = ucontrol->value.enumerated.item[0]; | |
1851 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1852 | mask = e->mask << e->shift_l; | |
1853 | if (e->shift_l != e->shift_r) { | |
1854 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1855 | return -EINVAL; | |
1856 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1857 | mask |= e->mask << e->shift_r; | |
1858 | } | |
1859 | ||
1860 | mutex_lock(&widget->codec->mutex); | |
1861 | widget->value = val; | |
3a65577d MB |
1862 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1863 | dapm_mux_update_power(widget, kcontrol, change, mux, e); | |
1642e3d4 MB |
1864 | |
1865 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
1866 | ret = widget->event(widget, | |
1867 | kcontrol, SND_SOC_DAPM_PRE_REG); | |
1868 | if (ret < 0) | |
1869 | goto out; | |
1870 | } | |
1871 | ||
1872 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); | |
1873 | ||
1874 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
1875 | ret = widget->event(widget, | |
1876 | kcontrol, SND_SOC_DAPM_POST_REG); | |
2e72f8e3 PU |
1877 | |
1878 | out: | |
1879 | mutex_unlock(&widget->codec->mutex); | |
1880 | return ret; | |
1881 | } | |
1882 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
1883 | ||
8b37dbd2 MB |
1884 | /** |
1885 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
1886 | * | |
1887 | * @kcontrol: mixer control | |
1888 | * @uinfo: control element information | |
1889 | * | |
1890 | * Callback to provide information about a pin switch control. | |
1891 | */ | |
1892 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
1893 | struct snd_ctl_elem_info *uinfo) | |
1894 | { | |
1895 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1896 | uinfo->count = 1; | |
1897 | uinfo->value.integer.min = 0; | |
1898 | uinfo->value.integer.max = 1; | |
1899 | ||
1900 | return 0; | |
1901 | } | |
1902 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
1903 | ||
1904 | /** | |
1905 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
1906 | * | |
1907 | * @kcontrol: mixer control | |
1908 | * @ucontrol: Value | |
1909 | */ | |
1910 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
1911 | struct snd_ctl_elem_value *ucontrol) | |
1912 | { | |
1913 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1914 | const char *pin = (const char *)kcontrol->private_value; | |
1915 | ||
1916 | mutex_lock(&codec->mutex); | |
1917 | ||
1918 | ucontrol->value.integer.value[0] = | |
ce6120cc | 1919 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
1920 | |
1921 | mutex_unlock(&codec->mutex); | |
1922 | ||
1923 | return 0; | |
1924 | } | |
1925 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
1926 | ||
1927 | /** | |
1928 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
1929 | * | |
1930 | * @kcontrol: mixer control | |
1931 | * @ucontrol: Value | |
1932 | */ | |
1933 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
1934 | struct snd_ctl_elem_value *ucontrol) | |
1935 | { | |
1936 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1937 | const char *pin = (const char *)kcontrol->private_value; | |
1938 | ||
1939 | mutex_lock(&codec->mutex); | |
1940 | ||
1941 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 1942 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 1943 | else |
ce6120cc | 1944 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 1945 | |
ce6120cc | 1946 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
1947 | |
1948 | mutex_unlock(&codec->mutex); | |
1949 | ||
1950 | return 0; | |
1951 | } | |
1952 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
1953 | ||
2b97eabc RP |
1954 | /** |
1955 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 1956 | * @dapm: DAPM context |
2b97eabc RP |
1957 | * @widget: widget template |
1958 | * | |
1959 | * Creates a new dapm control based upon the template. | |
1960 | * | |
1961 | * Returns 0 for success else error. | |
1962 | */ | |
ce6120cc | 1963 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
1964 | const struct snd_soc_dapm_widget *widget) |
1965 | { | |
1966 | struct snd_soc_dapm_widget *w; | |
1967 | ||
1968 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
1969 | return -ENOMEM; | |
1970 | ||
ce6120cc LG |
1971 | w->dapm = dapm; |
1972 | w->codec = dapm->codec; | |
2b97eabc RP |
1973 | INIT_LIST_HEAD(&w->sources); |
1974 | INIT_LIST_HEAD(&w->sinks); | |
1975 | INIT_LIST_HEAD(&w->list); | |
ce6120cc | 1976 | list_add(&w->list, &dapm->widgets); |
2b97eabc RP |
1977 | |
1978 | /* machine layer set ups unconnected pins and insertions */ | |
1979 | w->connected = 1; | |
1980 | return 0; | |
1981 | } | |
1982 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
1983 | ||
4ba1327a MB |
1984 | /** |
1985 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 1986 | * @dapm: DAPM context |
4ba1327a MB |
1987 | * @widget: widget array |
1988 | * @num: number of widgets | |
1989 | * | |
1990 | * Creates new DAPM controls based upon the templates. | |
1991 | * | |
1992 | * Returns 0 for success else error. | |
1993 | */ | |
ce6120cc | 1994 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
1995 | const struct snd_soc_dapm_widget *widget, |
1996 | int num) | |
1997 | { | |
1998 | int i, ret; | |
1999 | ||
2000 | for (i = 0; i < num; i++) { | |
ce6120cc | 2001 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2002 | if (ret < 0) { |
f7d41ae8 JN |
2003 | dev_err(dapm->dev, |
2004 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2005 | widget->name, ret); | |
4ba1327a | 2006 | return ret; |
b8b33cb5 | 2007 | } |
4ba1327a MB |
2008 | widget++; |
2009 | } | |
2010 | return 0; | |
2011 | } | |
2012 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2013 | ||
ce6120cc | 2014 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2015 | const char *stream, int event) |
2b97eabc RP |
2016 | { |
2017 | struct snd_soc_dapm_widget *w; | |
2018 | ||
ce6120cc | 2019 | list_for_each_entry(w, &dapm->widgets, list) |
2b97eabc RP |
2020 | { |
2021 | if (!w->sname) | |
2022 | continue; | |
f7d41ae8 JN |
2023 | dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
2024 | w->name, w->sname, stream, event); | |
2b97eabc RP |
2025 | if (strstr(w->sname, stream)) { |
2026 | switch(event) { | |
2027 | case SND_SOC_DAPM_STREAM_START: | |
2028 | w->active = 1; | |
2029 | break; | |
2030 | case SND_SOC_DAPM_STREAM_STOP: | |
2031 | w->active = 0; | |
2032 | break; | |
2033 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2034 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2035 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2036 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2037 | break; | |
2038 | } | |
2039 | } | |
2040 | } | |
2b97eabc | 2041 | |
ce6120cc LG |
2042 | dapm_power_widgets(dapm, event); |
2043 | } | |
2044 | ||
2045 | /** | |
2046 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2047 | * @rtd: PCM runtime data | |
2048 | * @stream: stream name | |
2049 | * @event: stream event | |
2050 | * | |
2051 | * Sends a stream event to the dapm core. The core then makes any | |
2052 | * necessary widget power changes. | |
2053 | * | |
2054 | * Returns 0 for success else error. | |
2055 | */ | |
2056 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2057 | const char *stream, int event) | |
2058 | { | |
2059 | struct snd_soc_codec *codec = rtd->codec; | |
2060 | ||
2061 | if (stream == NULL) | |
2062 | return 0; | |
2063 | ||
2064 | mutex_lock(&codec->mutex); | |
2065 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2066 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2067 | return 0; |
2068 | } | |
2069 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); | |
2070 | ||
2071 | /** | |
a5302181 | 2072 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2073 | * @dapm: DAPM context |
a5302181 | 2074 | * @pin: pin name |
2b97eabc | 2075 | * |
74b8f955 | 2076 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2077 | * a valid audio route and active audio stream. |
2078 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2079 | * do any widget power switching. | |
2b97eabc | 2080 | */ |
ce6120cc | 2081 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2082 | { |
ce6120cc | 2083 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2084 | } |
2085 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2086 | |
da34183e MB |
2087 | /** |
2088 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2089 | * @dapm: DAPM context |
da34183e MB |
2090 | * @pin: pin name |
2091 | * | |
2092 | * Enables input/output pin regardless of any other state. This is | |
2093 | * intended for use with microphone bias supplies used in microphone | |
2094 | * jack detection. | |
2095 | * | |
2096 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2097 | * do any widget power switching. | |
2098 | */ | |
ce6120cc LG |
2099 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2100 | const char *pin) | |
da34183e MB |
2101 | { |
2102 | struct snd_soc_dapm_widget *w; | |
2103 | ||
ce6120cc | 2104 | list_for_each_entry(w, &dapm->widgets, list) { |
da34183e | 2105 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
2106 | dev_dbg(w->dapm->dev, |
2107 | "dapm: force enable pin %s\n", pin); | |
da34183e MB |
2108 | w->connected = 1; |
2109 | w->force = 1; | |
2110 | return 0; | |
2111 | } | |
2112 | } | |
2113 | ||
f7d41ae8 | 2114 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
da34183e MB |
2115 | return -EINVAL; |
2116 | } | |
2117 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2118 | ||
a5302181 LG |
2119 | /** |
2120 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2121 | * @dapm: DAPM context |
a5302181 LG |
2122 | * @pin: pin name |
2123 | * | |
74b8f955 | 2124 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2125 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2126 | * do any widget power switching. | |
2127 | */ | |
ce6120cc LG |
2128 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2129 | const char *pin) | |
a5302181 | 2130 | { |
ce6120cc | 2131 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2132 | } |
a5302181 | 2133 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2134 | |
5817b52a MB |
2135 | /** |
2136 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2137 | * @dapm: DAPM context |
5817b52a MB |
2138 | * @pin: pin name |
2139 | * | |
2140 | * Marks the specified pin as being not connected, disabling it along | |
2141 | * any parent or child widgets. At present this is identical to | |
2142 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2143 | * additional things such as disabling controls which only affect | |
2144 | * paths through the pin. | |
2145 | * | |
2146 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2147 | * do any widget power switching. | |
2148 | */ | |
ce6120cc | 2149 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2150 | { |
ce6120cc | 2151 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2152 | } |
2153 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2154 | ||
eeec12bf | 2155 | /** |
a5302181 | 2156 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2157 | * @dapm: DAPM context |
a5302181 | 2158 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2159 | * |
a5302181 | 2160 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2161 | * |
a5302181 | 2162 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2163 | */ |
ce6120cc LG |
2164 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2165 | const char *pin) | |
eeec12bf GG |
2166 | { |
2167 | struct snd_soc_dapm_widget *w; | |
2168 | ||
ce6120cc | 2169 | list_for_each_entry(w, &dapm->widgets, list) { |
a5302181 | 2170 | if (!strcmp(w->name, pin)) |
eeec12bf GG |
2171 | return w->connected; |
2172 | } | |
2173 | ||
2174 | return 0; | |
2175 | } | |
a5302181 | 2176 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2177 | |
1547aba9 MB |
2178 | /** |
2179 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2180 | * @dapm: DAPM context |
1547aba9 MB |
2181 | * @pin: audio signal pin endpoint (or start point) |
2182 | * | |
2183 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2184 | * system is disabled a path between two endpoints flagged as ignoring | |
2185 | * suspend will not be disabled. The path must already be enabled via | |
2186 | * normal means at suspend time, it will not be turned on if it was not | |
2187 | * already enabled. | |
2188 | */ | |
ce6120cc LG |
2189 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2190 | const char *pin) | |
1547aba9 MB |
2191 | { |
2192 | struct snd_soc_dapm_widget *w; | |
2193 | ||
ce6120cc | 2194 | list_for_each_entry(w, &dapm->widgets, list) { |
1547aba9 MB |
2195 | if (!strcmp(w->name, pin)) { |
2196 | w->ignore_suspend = 1; | |
2197 | return 0; | |
2198 | } | |
2199 | } | |
2200 | ||
f7d41ae8 | 2201 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
1547aba9 MB |
2202 | return -EINVAL; |
2203 | } | |
2204 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2205 | ||
2b97eabc RP |
2206 | /** |
2207 | * snd_soc_dapm_free - free dapm resources | |
f0fba2ad | 2208 | * @card: SoC device |
2b97eabc RP |
2209 | * |
2210 | * Free all dapm widgets and resources. | |
2211 | */ | |
ce6120cc | 2212 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2213 | { |
ce6120cc LG |
2214 | snd_soc_dapm_sys_remove(dapm->dev); |
2215 | dapm_free_widgets(dapm); | |
2b97eabc RP |
2216 | } |
2217 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2218 | ||
ce6120cc | 2219 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2220 | { |
51737470 MB |
2221 | struct snd_soc_dapm_widget *w; |
2222 | LIST_HEAD(down_list); | |
2223 | int powerdown = 0; | |
2224 | ||
ce6120cc | 2225 | list_for_each_entry(w, &dapm->widgets, list) { |
51737470 MB |
2226 | if (w->power) { |
2227 | dapm_seq_insert(w, &down_list, dapm_down_seq); | |
c2caa4da | 2228 | w->power = 0; |
51737470 MB |
2229 | powerdown = 1; |
2230 | } | |
2231 | } | |
2232 | ||
2233 | /* If there were no widgets to power down we're already in | |
2234 | * standby. | |
2235 | */ | |
2236 | if (powerdown) { | |
ce6120cc LG |
2237 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_PREPARE); |
2238 | dapm_seq_run(dapm, &down_list, 0, dapm_down_seq); | |
2239 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_STANDBY); | |
51737470 | 2240 | } |
f0fba2ad LG |
2241 | } |
2242 | ||
2243 | /* | |
2244 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2245 | */ | |
2246 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2247 | { | |
2248 | struct snd_soc_codec *codec; | |
2249 | ||
ce6120cc LG |
2250 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2251 | soc_dapm_shutdown_codec(&codec->dapm); | |
2252 | snd_soc_dapm_set_bias_level(card, &codec->dapm, SND_SOC_BIAS_OFF); | |
2253 | } | |
51737470 MB |
2254 | } |
2255 | ||
2b97eabc | 2256 | /* Module information */ |
d331124d | 2257 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2258 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2259 | MODULE_LICENSE("GPL"); |