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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/initval.h> |
47 | ||
84e90930 MB |
48 | #include <trace/events/asoc.h> |
49 | ||
2b97eabc RP |
50 | /* dapm power sequences - make this per codec in the future */ |
51 | static int dapm_up_seq[] = { | |
38357ab2 MB |
52 | [snd_soc_dapm_pre] = 0, |
53 | [snd_soc_dapm_supply] = 1, | |
54 | [snd_soc_dapm_micbias] = 2, | |
010ff262 MB |
55 | [snd_soc_dapm_aif_in] = 3, |
56 | [snd_soc_dapm_aif_out] = 3, | |
57 | [snd_soc_dapm_mic] = 4, | |
58 | [snd_soc_dapm_mux] = 5, | |
59 | [snd_soc_dapm_value_mux] = 5, | |
60 | [snd_soc_dapm_dac] = 6, | |
61 | [snd_soc_dapm_mixer] = 7, | |
62 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
63 | [snd_soc_dapm_pga] = 8, | |
64 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 65 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
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, |
d88429a6 | 76 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
77 | [snd_soc_dapm_pga] = 4, |
78 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
79 | [snd_soc_dapm_mixer] = 5, |
80 | [snd_soc_dapm_dac] = 6, | |
81 | [snd_soc_dapm_mic] = 7, | |
82 | [snd_soc_dapm_micbias] = 8, | |
83 | [snd_soc_dapm_mux] = 9, | |
84 | [snd_soc_dapm_value_mux] = 9, | |
010ff262 MB |
85 | [snd_soc_dapm_aif_in] = 10, |
86 | [snd_soc_dapm_aif_out] = 10, | |
87 | [snd_soc_dapm_supply] = 11, | |
88 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
89 | }; |
90 | ||
12ef193d | 91 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
92 | { |
93 | if (pop_time) | |
94 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
95 | } | |
96 | ||
fd8d3bc0 | 97 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
98 | { |
99 | va_list args; | |
fd8d3bc0 | 100 | char *buf; |
15e4c72f | 101 | |
fd8d3bc0 JN |
102 | if (!pop_time) |
103 | return; | |
15e4c72f | 104 | |
fd8d3bc0 JN |
105 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
106 | if (buf == NULL) | |
107 | return; | |
15e4c72f | 108 | |
fd8d3bc0 JN |
109 | va_start(args, fmt); |
110 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
111 | dev_info(dev, buf); | |
15e4c72f | 112 | va_end(args); |
fd8d3bc0 JN |
113 | |
114 | kfree(buf); | |
15e4c72f MB |
115 | } |
116 | ||
2b97eabc | 117 | /* create a new dapm widget */ |
88cb4290 | 118 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
119 | const struct snd_soc_dapm_widget *_widget) |
120 | { | |
88cb4290 | 121 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
122 | } |
123 | ||
452c5eaa MB |
124 | /** |
125 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
f0fba2ad | 126 | * @card: audio device |
452c5eaa MB |
127 | * @level: level to configure |
128 | * | |
129 | * Configure the bias (power) levels for the SoC audio device. | |
130 | * | |
131 | * Returns 0 for success else error. | |
132 | */ | |
f0fba2ad | 133 | static int snd_soc_dapm_set_bias_level(struct snd_soc_card *card, |
ce6120cc LG |
134 | struct snd_soc_dapm_context *dapm, |
135 | enum snd_soc_bias_level level) | |
452c5eaa | 136 | { |
452c5eaa MB |
137 | int ret = 0; |
138 | ||
f83fba8b MB |
139 | switch (level) { |
140 | case SND_SOC_BIAS_ON: | |
ce6120cc | 141 | dev_dbg(dapm->dev, "Setting full bias\n"); |
f83fba8b MB |
142 | break; |
143 | case SND_SOC_BIAS_PREPARE: | |
ce6120cc | 144 | dev_dbg(dapm->dev, "Setting bias prepare\n"); |
f83fba8b MB |
145 | break; |
146 | case SND_SOC_BIAS_STANDBY: | |
ce6120cc | 147 | dev_dbg(dapm->dev, "Setting standby bias\n"); |
f83fba8b MB |
148 | break; |
149 | case SND_SOC_BIAS_OFF: | |
ce6120cc | 150 | dev_dbg(dapm->dev, "Setting bias off\n"); |
f83fba8b MB |
151 | break; |
152 | default: | |
ce6120cc | 153 | dev_err(dapm->dev, "Setting invalid bias %d\n", level); |
f83fba8b MB |
154 | return -EINVAL; |
155 | } | |
156 | ||
84e90930 MB |
157 | trace_snd_soc_bias_level_start(card, level); |
158 | ||
f0fba2ad | 159 | if (card && card->set_bias_level) |
452c5eaa | 160 | ret = card->set_bias_level(card, level); |
474e09ca | 161 | if (ret == 0) { |
ce6120cc LG |
162 | if (dapm->codec && dapm->codec->driver->set_bias_level) |
163 | ret = dapm->codec->driver->set_bias_level(dapm->codec, level); | |
474e09ca | 164 | else |
ce6120cc | 165 | dapm->bias_level = level; |
474e09ca | 166 | } |
1badabd9 MB |
167 | if (ret == 0) { |
168 | if (card && card->set_bias_level_post) | |
169 | ret = card->set_bias_level_post(card, level); | |
170 | } | |
452c5eaa | 171 | |
84e90930 MB |
172 | trace_snd_soc_bias_level_done(card, level); |
173 | ||
452c5eaa MB |
174 | return ret; |
175 | } | |
176 | ||
2b97eabc RP |
177 | /* set up initial codec paths */ |
178 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
179 | struct snd_soc_dapm_path *p, int i) | |
180 | { | |
181 | switch (w->id) { | |
182 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
183 | case snd_soc_dapm_mixer: |
184 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 185 | int val; |
4eaa9819 JS |
186 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
187 | w->kcontrols[i].private_value; | |
815ecf8d JS |
188 | unsigned int reg = mc->reg; |
189 | unsigned int shift = mc->shift; | |
4eaa9819 | 190 | int max = mc->max; |
815ecf8d JS |
191 | unsigned int mask = (1 << fls(max)) - 1; |
192 | unsigned int invert = mc->invert; | |
2b97eabc RP |
193 | |
194 | val = snd_soc_read(w->codec, reg); | |
195 | val = (val >> shift) & mask; | |
196 | ||
197 | if ((invert && !val) || (!invert && val)) | |
198 | p->connect = 1; | |
199 | else | |
200 | p->connect = 0; | |
201 | } | |
202 | break; | |
203 | case snd_soc_dapm_mux: { | |
204 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; | |
205 | int val, item, bitmask; | |
206 | ||
f8ba0b7b | 207 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
208 | ; |
209 | val = snd_soc_read(w->codec, e->reg); | |
210 | item = (val >> e->shift_l) & (bitmask - 1); | |
211 | ||
212 | p->connect = 0; | |
f8ba0b7b | 213 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
214 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
215 | p->connect = 1; | |
216 | } | |
217 | } | |
218 | break; | |
2e72f8e3 | 219 | case snd_soc_dapm_value_mux: { |
74155556 | 220 | struct soc_enum *e = (struct soc_enum *) |
2e72f8e3 PU |
221 | w->kcontrols[i].private_value; |
222 | int val, item; | |
223 | ||
224 | val = snd_soc_read(w->codec, e->reg); | |
225 | val = (val >> e->shift_l) & e->mask; | |
226 | for (item = 0; item < e->max; item++) { | |
227 | if (val == e->values[item]) | |
228 | break; | |
229 | } | |
230 | ||
231 | p->connect = 0; | |
232 | for (i = 0; i < e->max; i++) { | |
233 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
234 | p->connect = 1; | |
235 | } | |
236 | } | |
237 | break; | |
2b97eabc RP |
238 | /* does not effect routing - always connected */ |
239 | case snd_soc_dapm_pga: | |
d88429a6 | 240 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
241 | case snd_soc_dapm_output: |
242 | case snd_soc_dapm_adc: | |
243 | case snd_soc_dapm_input: | |
244 | case snd_soc_dapm_dac: | |
245 | case snd_soc_dapm_micbias: | |
246 | case snd_soc_dapm_vmid: | |
246d0a17 | 247 | case snd_soc_dapm_supply: |
010ff262 MB |
248 | case snd_soc_dapm_aif_in: |
249 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
250 | p->connect = 1; |
251 | break; | |
252 | /* does effect routing - dynamically connected */ | |
253 | case snd_soc_dapm_hp: | |
254 | case snd_soc_dapm_mic: | |
255 | case snd_soc_dapm_spk: | |
256 | case snd_soc_dapm_line: | |
257 | case snd_soc_dapm_pre: | |
258 | case snd_soc_dapm_post: | |
259 | p->connect = 0; | |
260 | break; | |
261 | } | |
262 | } | |
263 | ||
74b8f955 | 264 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 265 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
266 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
267 | struct snd_soc_dapm_path *path, const char *control_name, | |
268 | const struct snd_kcontrol_new *kcontrol) | |
269 | { | |
270 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
271 | int i; | |
272 | ||
f8ba0b7b | 273 | for (i = 0; i < e->max; i++) { |
2b97eabc | 274 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 275 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
276 | list_add(&path->list_sink, &dest->sources); |
277 | list_add(&path->list_source, &src->sinks); | |
278 | path->name = (char*)e->texts[i]; | |
279 | dapm_set_path_status(dest, path, 0); | |
280 | return 0; | |
281 | } | |
282 | } | |
283 | ||
284 | return -ENODEV; | |
285 | } | |
286 | ||
74b8f955 | 287 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 288 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
289 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
290 | struct snd_soc_dapm_path *path, const char *control_name) | |
291 | { | |
292 | int i; | |
293 | ||
294 | /* search for mixer kcontrol */ | |
295 | for (i = 0; i < dest->num_kcontrols; i++) { | |
296 | if (!strcmp(control_name, dest->kcontrols[i].name)) { | |
8ddab3f5 | 297 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
298 | list_add(&path->list_sink, &dest->sources); |
299 | list_add(&path->list_source, &src->sinks); | |
300 | path->name = dest->kcontrols[i].name; | |
301 | dapm_set_path_status(dest, path, i); | |
302 | return 0; | |
303 | } | |
304 | } | |
305 | return -ENODEV; | |
306 | } | |
307 | ||
308 | /* update dapm codec register bits */ | |
309 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) | |
310 | { | |
311 | int change, power; | |
46f5822f | 312 | unsigned int old, new; |
2b97eabc | 313 | struct snd_soc_codec *codec = widget->codec; |
ce6120cc | 314 | struct snd_soc_dapm_context *dapm = widget->dapm; |
3a45b867 | 315 | struct snd_soc_card *card = dapm->card; |
2b97eabc RP |
316 | |
317 | /* check for valid widgets */ | |
318 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || | |
319 | widget->id == snd_soc_dapm_output || | |
320 | widget->id == snd_soc_dapm_hp || | |
321 | widget->id == snd_soc_dapm_mic || | |
322 | widget->id == snd_soc_dapm_line || | |
323 | widget->id == snd_soc_dapm_spk) | |
324 | return 0; | |
325 | ||
326 | power = widget->power; | |
327 | if (widget->invert) | |
328 | power = (power ? 0:1); | |
329 | ||
330 | old = snd_soc_read(codec, widget->reg); | |
331 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); | |
332 | ||
333 | change = old != new; | |
334 | if (change) { | |
fd8d3bc0 JN |
335 | pop_dbg(dapm->dev, card->pop_time, |
336 | "pop test %s : %s in %d ms\n", | |
12ef193d | 337 | widget->name, widget->power ? "on" : "off", |
3a45b867 JN |
338 | card->pop_time); |
339 | pop_wait(card->pop_time); | |
69224719 | 340 | snd_soc_write(codec, widget->reg, new); |
2b97eabc | 341 | } |
f7d41ae8 JN |
342 | dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg, |
343 | old, new, change); | |
2b97eabc RP |
344 | return change; |
345 | } | |
346 | ||
2b97eabc | 347 | /* create new dapm mixer control */ |
ce6120cc | 348 | static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
349 | struct snd_soc_dapm_widget *w) |
350 | { | |
351 | int i, ret = 0; | |
219b93f5 | 352 | size_t name_len; |
2b97eabc | 353 | struct snd_soc_dapm_path *path; |
ce6120cc | 354 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
355 | |
356 | /* add kcontrol */ | |
357 | for (i = 0; i < w->num_kcontrols; i++) { | |
358 | ||
359 | /* match name */ | |
360 | list_for_each_entry(path, &w->sources, list_sink) { | |
361 | ||
362 | /* mixer/mux paths name must match control name */ | |
363 | if (path->name != (char*)w->kcontrols[i].name) | |
364 | continue; | |
365 | ||
ca9c1aae IM |
366 | /* add dapm control with long name. |
367 | * for dapm_mixer this is the concatenation of the | |
368 | * mixer and kcontrol name. | |
369 | * for dapm_mixer_named_ctl this is simply the | |
370 | * kcontrol name. | |
371 | */ | |
372 | name_len = strlen(w->kcontrols[i].name) + 1; | |
07495f3e | 373 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
374 | name_len += 1 + strlen(w->name); |
375 | ||
219b93f5 | 376 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 377 | |
2b97eabc RP |
378 | if (path->long_name == NULL) |
379 | return -ENOMEM; | |
380 | ||
ca9c1aae | 381 | switch (w->id) { |
ca9c1aae IM |
382 | default: |
383 | snprintf(path->long_name, name_len, "%s %s", | |
384 | w->name, w->kcontrols[i].name); | |
07495f3e | 385 | break; |
ca9c1aae IM |
386 | case snd_soc_dapm_mixer_named_ctl: |
387 | snprintf(path->long_name, name_len, "%s", | |
388 | w->kcontrols[i].name); | |
07495f3e | 389 | break; |
ca9c1aae IM |
390 | } |
391 | ||
219b93f5 MB |
392 | path->long_name[name_len - 1] = '\0'; |
393 | ||
2b97eabc RP |
394 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
395 | path->long_name); | |
ce6120cc | 396 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 397 | if (ret < 0) { |
f7d41ae8 JN |
398 | dev_err(dapm->dev, |
399 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
400 | path->long_name, ret); | |
2b97eabc RP |
401 | kfree(path->long_name); |
402 | path->long_name = NULL; | |
403 | return ret; | |
404 | } | |
405 | } | |
406 | } | |
407 | return ret; | |
408 | } | |
409 | ||
410 | /* create new dapm mux control */ | |
ce6120cc | 411 | static int dapm_new_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
412 | struct snd_soc_dapm_widget *w) |
413 | { | |
414 | struct snd_soc_dapm_path *path = NULL; | |
415 | struct snd_kcontrol *kcontrol; | |
ce6120cc | 416 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
417 | int ret = 0; |
418 | ||
419 | if (!w->num_kcontrols) { | |
f7d41ae8 | 420 | dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name); |
2b97eabc RP |
421 | return -EINVAL; |
422 | } | |
423 | ||
424 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); | |
ce6120cc LG |
425 | ret = snd_ctl_add(card, kcontrol); |
426 | ||
2b97eabc RP |
427 | if (ret < 0) |
428 | goto err; | |
429 | ||
430 | list_for_each_entry(path, &w->sources, list_sink) | |
431 | path->kcontrol = kcontrol; | |
432 | ||
433 | return ret; | |
434 | ||
435 | err: | |
f7d41ae8 | 436 | dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name); |
2b97eabc RP |
437 | return ret; |
438 | } | |
439 | ||
440 | /* create new dapm volume control */ | |
ce6120cc | 441 | static int dapm_new_pga(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
442 | struct snd_soc_dapm_widget *w) |
443 | { | |
a6c65736 | 444 | if (w->num_kcontrols) |
f7d41ae8 JN |
445 | dev_err(w->dapm->dev, |
446 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 447 | |
a6c65736 | 448 | return 0; |
2b97eabc RP |
449 | } |
450 | ||
451 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 452 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
453 | { |
454 | struct snd_soc_dapm_path *p; | |
455 | ||
8ddab3f5 | 456 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
457 | p->walked = 0; |
458 | } | |
459 | ||
9949788b MB |
460 | /* We implement power down on suspend by checking the power state of |
461 | * the ALSA card - when we are suspending the ALSA state for the card | |
462 | * is set to D3. | |
463 | */ | |
464 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
465 | { | |
ce6120cc | 466 | int level = snd_power_get_state(widget->dapm->codec->card->snd_card); |
9949788b | 467 | |
f0fba2ad | 468 | switch (level) { |
9949788b MB |
469 | case SNDRV_CTL_POWER_D3hot: |
470 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 471 | if (widget->ignore_suspend) |
f7d41ae8 JN |
472 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
473 | widget->name); | |
1547aba9 | 474 | return widget->ignore_suspend; |
9949788b MB |
475 | default: |
476 | return 1; | |
477 | } | |
478 | } | |
479 | ||
2b97eabc RP |
480 | /* |
481 | * Recursively check for a completed path to an active or physically connected | |
482 | * output widget. Returns number of complete paths. | |
483 | */ | |
484 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
485 | { | |
486 | struct snd_soc_dapm_path *path; | |
487 | int con = 0; | |
488 | ||
246d0a17 MB |
489 | if (widget->id == snd_soc_dapm_supply) |
490 | return 0; | |
491 | ||
010ff262 MB |
492 | switch (widget->id) { |
493 | case snd_soc_dapm_adc: | |
494 | case snd_soc_dapm_aif_out: | |
495 | if (widget->active) | |
9949788b | 496 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
497 | default: |
498 | break; | |
499 | } | |
2b97eabc RP |
500 | |
501 | if (widget->connected) { | |
502 | /* connected pin ? */ | |
503 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 504 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
505 | |
506 | /* connected jack or spk ? */ | |
507 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 508 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 509 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
510 | } |
511 | ||
512 | list_for_each_entry(path, &widget->sinks, list_source) { | |
513 | if (path->walked) | |
514 | continue; | |
515 | ||
516 | if (path->sink && path->connect) { | |
517 | path->walked = 1; | |
518 | con += is_connected_output_ep(path->sink); | |
519 | } | |
520 | } | |
521 | ||
522 | return con; | |
523 | } | |
524 | ||
525 | /* | |
526 | * Recursively check for a completed path to an active or physically connected | |
527 | * input widget. Returns number of complete paths. | |
528 | */ | |
529 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
530 | { | |
531 | struct snd_soc_dapm_path *path; | |
532 | int con = 0; | |
533 | ||
246d0a17 MB |
534 | if (widget->id == snd_soc_dapm_supply) |
535 | return 0; | |
536 | ||
2b97eabc | 537 | /* active stream ? */ |
010ff262 MB |
538 | switch (widget->id) { |
539 | case snd_soc_dapm_dac: | |
540 | case snd_soc_dapm_aif_in: | |
541 | if (widget->active) | |
9949788b | 542 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
543 | default: |
544 | break; | |
545 | } | |
2b97eabc RP |
546 | |
547 | if (widget->connected) { | |
548 | /* connected pin ? */ | |
549 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 550 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
551 | |
552 | /* connected VMID/Bias for lower pops */ | |
553 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 554 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
555 | |
556 | /* connected jack ? */ | |
eaeae5d9 PU |
557 | if (widget->id == snd_soc_dapm_mic || |
558 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 559 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
560 | } |
561 | ||
562 | list_for_each_entry(path, &widget->sources, list_sink) { | |
563 | if (path->walked) | |
564 | continue; | |
565 | ||
566 | if (path->source && path->connect) { | |
567 | path->walked = 1; | |
568 | con += is_connected_input_ep(path->source); | |
569 | } | |
570 | } | |
571 | ||
572 | return con; | |
573 | } | |
574 | ||
e2be2ccf JN |
575 | /* |
576 | * Handler for generic register modifier widget. | |
577 | */ | |
578 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
579 | struct snd_kcontrol *kcontrol, int event) | |
580 | { | |
581 | unsigned int val; | |
582 | ||
583 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
584 | val = w->on_val; | |
585 | else | |
586 | val = w->off_val; | |
587 | ||
588 | snd_soc_update_bits(w->codec, -(w->reg + 1), | |
589 | w->mask << w->shift, val << w->shift); | |
590 | ||
591 | return 0; | |
592 | } | |
11589418 | 593 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 594 | |
025756ec MB |
595 | /* Standard power change method, used to apply power changes to most |
596 | * widgets. | |
597 | */ | |
598 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) | |
599 | { | |
600 | int ret; | |
601 | ||
602 | /* call any power change event handlers */ | |
603 | if (w->event) | |
f7d41ae8 | 604 | dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n", |
025756ec MB |
605 | w->power ? "on" : "off", |
606 | w->name, w->event_flags); | |
607 | ||
608 | /* power up pre event */ | |
609 | if (w->power && w->event && | |
610 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { | |
611 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); | |
612 | if (ret < 0) | |
613 | return ret; | |
614 | } | |
615 | ||
616 | /* power down pre event */ | |
617 | if (!w->power && w->event && | |
618 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { | |
619 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); | |
620 | if (ret < 0) | |
621 | return ret; | |
622 | } | |
623 | ||
025756ec MB |
624 | dapm_update_bits(w); |
625 | ||
025756ec MB |
626 | /* power up post event */ |
627 | if (w->power && w->event && | |
628 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { | |
629 | ret = w->event(w, | |
630 | NULL, SND_SOC_DAPM_POST_PMU); | |
631 | if (ret < 0) | |
632 | return ret; | |
633 | } | |
634 | ||
635 | /* power down post event */ | |
636 | if (!w->power && w->event && | |
637 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { | |
638 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); | |
639 | if (ret < 0) | |
640 | return ret; | |
641 | } | |
642 | ||
643 | return 0; | |
644 | } | |
645 | ||
cd0f2d47 MB |
646 | /* Generic check to see if a widget should be powered. |
647 | */ | |
648 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
649 | { | |
650 | int in, out; | |
651 | ||
652 | in = is_connected_input_ep(w); | |
ce6120cc | 653 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 654 | out = is_connected_output_ep(w); |
ce6120cc | 655 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
656 | return out != 0 && in != 0; |
657 | } | |
658 | ||
6ea31b9f MB |
659 | /* Check to see if an ADC has power */ |
660 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
661 | { | |
662 | int in; | |
663 | ||
664 | if (w->active) { | |
665 | in = is_connected_input_ep(w); | |
ce6120cc | 666 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
667 | return in != 0; |
668 | } else { | |
669 | return dapm_generic_check_power(w); | |
670 | } | |
671 | } | |
672 | ||
673 | /* Check to see if a DAC has power */ | |
674 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
675 | { | |
676 | int out; | |
677 | ||
678 | if (w->active) { | |
679 | out = is_connected_output_ep(w); | |
ce6120cc | 680 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
681 | return out != 0; |
682 | } else { | |
683 | return dapm_generic_check_power(w); | |
684 | } | |
685 | } | |
686 | ||
246d0a17 MB |
687 | /* Check to see if a power supply is needed */ |
688 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
689 | { | |
690 | struct snd_soc_dapm_path *path; | |
691 | int power = 0; | |
692 | ||
693 | /* Check if one of our outputs is connected */ | |
694 | list_for_each_entry(path, &w->sinks, list_source) { | |
215edda3 MB |
695 | if (path->connected && |
696 | !path->connected(path->source, path->sink)) | |
697 | continue; | |
698 | ||
246d0a17 MB |
699 | if (path->sink && path->sink->power_check && |
700 | path->sink->power_check(path->sink)) { | |
701 | power = 1; | |
702 | break; | |
703 | } | |
704 | } | |
705 | ||
ce6120cc | 706 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
707 | |
708 | return power; | |
709 | } | |
710 | ||
38357ab2 MB |
711 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
712 | struct snd_soc_dapm_widget *b, | |
713 | int sort[]) | |
42aa3418 | 714 | { |
38357ab2 MB |
715 | if (sort[a->id] != sort[b->id]) |
716 | return sort[a->id] - sort[b->id]; | |
b22ead2a MB |
717 | if (a->reg != b->reg) |
718 | return a->reg - b->reg; | |
84dab567 MB |
719 | if (a->dapm != b->dapm) |
720 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 721 | |
38357ab2 MB |
722 | return 0; |
723 | } | |
42aa3418 | 724 | |
38357ab2 MB |
725 | /* Insert a widget in order into a DAPM power sequence. */ |
726 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
727 | struct list_head *list, | |
728 | int sort[]) | |
729 | { | |
730 | struct snd_soc_dapm_widget *w; | |
731 | ||
732 | list_for_each_entry(w, list, power_list) | |
733 | if (dapm_seq_compare(new_widget, w, sort) < 0) { | |
734 | list_add_tail(&new_widget->power_list, &w->power_list); | |
735 | return; | |
736 | } | |
737 | ||
738 | list_add_tail(&new_widget->power_list, list); | |
739 | } | |
740 | ||
68f89ad8 MB |
741 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
742 | struct snd_soc_dapm_widget *w, int event) | |
743 | { | |
744 | struct snd_soc_card *card = dapm->card; | |
745 | const char *ev_name; | |
746 | int power, ret; | |
747 | ||
748 | switch (event) { | |
749 | case SND_SOC_DAPM_PRE_PMU: | |
750 | ev_name = "PRE_PMU"; | |
751 | power = 1; | |
752 | break; | |
753 | case SND_SOC_DAPM_POST_PMU: | |
754 | ev_name = "POST_PMU"; | |
755 | power = 1; | |
756 | break; | |
757 | case SND_SOC_DAPM_PRE_PMD: | |
758 | ev_name = "PRE_PMD"; | |
759 | power = 0; | |
760 | break; | |
761 | case SND_SOC_DAPM_POST_PMD: | |
762 | ev_name = "POST_PMD"; | |
763 | power = 0; | |
764 | break; | |
765 | default: | |
766 | BUG(); | |
767 | return; | |
768 | } | |
769 | ||
770 | if (w->power != power) | |
771 | return; | |
772 | ||
773 | if (w->event && (w->event_flags & event)) { | |
774 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
775 | w->name, ev_name); | |
84e90930 | 776 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 777 | ret = w->event(w, NULL, event); |
84e90930 | 778 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
779 | if (ret < 0) |
780 | pr_err("%s: %s event failed: %d\n", | |
781 | ev_name, w->name, ret); | |
782 | } | |
783 | } | |
784 | ||
b22ead2a | 785 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 786 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 787 | struct list_head *pending) |
163cac06 | 788 | { |
3a45b867 | 789 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
790 | struct snd_soc_dapm_widget *w; |
791 | int reg, power; | |
b22ead2a MB |
792 | unsigned int value = 0; |
793 | unsigned int mask = 0; | |
794 | unsigned int cur_mask; | |
795 | ||
796 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
797 | power_list)->reg; | |
798 | ||
799 | list_for_each_entry(w, pending, power_list) { | |
800 | cur_mask = 1 << w->shift; | |
801 | BUG_ON(reg != w->reg); | |
802 | ||
803 | if (w->invert) | |
804 | power = !w->power; | |
805 | else | |
806 | power = w->power; | |
807 | ||
808 | mask |= cur_mask; | |
809 | if (power) | |
810 | value |= cur_mask; | |
811 | ||
fd8d3bc0 | 812 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
813 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
814 | w->name, reg, value, mask); | |
81628103 | 815 | |
68f89ad8 MB |
816 | /* Check for events */ |
817 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
818 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
819 | } |
820 | ||
821 | if (reg >= 0) { | |
fd8d3bc0 | 822 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 823 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
824 | value, mask, reg, card->pop_time); |
825 | pop_wait(card->pop_time); | |
ce6120cc | 826 | snd_soc_update_bits(dapm->codec, reg, mask, value); |
b22ead2a MB |
827 | } |
828 | ||
81628103 | 829 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
830 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
831 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 832 | } |
b22ead2a | 833 | } |
42aa3418 | 834 | |
b22ead2a MB |
835 | /* Apply a DAPM power sequence. |
836 | * | |
837 | * We walk over a pre-sorted list of widgets to apply power to. In | |
838 | * order to minimise the number of writes to the device required | |
839 | * multiple widgets will be updated in a single write where possible. | |
840 | * Currently anything that requires more than a single write is not | |
841 | * handled. | |
842 | */ | |
ce6120cc LG |
843 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
844 | struct list_head *list, int event, int sort[]) | |
b22ead2a MB |
845 | { |
846 | struct snd_soc_dapm_widget *w, *n; | |
847 | LIST_HEAD(pending); | |
848 | int cur_sort = -1; | |
849 | int cur_reg = SND_SOC_NOPM; | |
163cac06 MB |
850 | int ret; |
851 | ||
b22ead2a MB |
852 | list_for_each_entry_safe(w, n, list, power_list) { |
853 | ret = 0; | |
854 | ||
855 | /* Do we need to apply any queued changes? */ | |
856 | if (sort[w->id] != cur_sort || w->reg != cur_reg) { | |
857 | if (!list_empty(&pending)) | |
ce6120cc | 858 | dapm_seq_run_coalesced(dapm, &pending); |
b22ead2a MB |
859 | |
860 | INIT_LIST_HEAD(&pending); | |
861 | cur_sort = -1; | |
862 | cur_reg = SND_SOC_NOPM; | |
863 | } | |
864 | ||
163cac06 MB |
865 | switch (w->id) { |
866 | case snd_soc_dapm_pre: | |
867 | if (!w->event) | |
b22ead2a MB |
868 | list_for_each_entry_safe_continue(w, n, list, |
869 | power_list); | |
163cac06 | 870 | |
b22ead2a | 871 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
872 | ret = w->event(w, |
873 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 874 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
875 | ret = w->event(w, |
876 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
877 | break; |
878 | ||
879 | case snd_soc_dapm_post: | |
880 | if (!w->event) | |
b22ead2a MB |
881 | list_for_each_entry_safe_continue(w, n, list, |
882 | power_list); | |
163cac06 | 883 | |
b22ead2a | 884 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
885 | ret = w->event(w, |
886 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 887 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
888 | ret = w->event(w, |
889 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
890 | break; |
891 | ||
b22ead2a MB |
892 | case snd_soc_dapm_input: |
893 | case snd_soc_dapm_output: | |
894 | case snd_soc_dapm_hp: | |
895 | case snd_soc_dapm_mic: | |
896 | case snd_soc_dapm_line: | |
897 | case snd_soc_dapm_spk: | |
898 | /* No register support currently */ | |
163cac06 | 899 | ret = dapm_generic_apply_power(w); |
163cac06 | 900 | break; |
b22ead2a MB |
901 | |
902 | default: | |
81628103 MB |
903 | /* Queue it up for application */ |
904 | cur_sort = sort[w->id]; | |
905 | cur_reg = w->reg; | |
906 | list_move(&w->power_list, &pending); | |
907 | break; | |
163cac06 | 908 | } |
b22ead2a MB |
909 | |
910 | if (ret < 0) | |
f7d41ae8 JN |
911 | dev_err(w->dapm->dev, |
912 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 913 | } |
b22ead2a MB |
914 | |
915 | if (!list_empty(&pending)) | |
ce6120cc | 916 | dapm_seq_run_coalesced(dapm, &pending); |
42aa3418 MB |
917 | } |
918 | ||
2b97eabc RP |
919 | /* |
920 | * Scan each dapm widget for complete audio path. | |
921 | * A complete path is a route that has valid endpoints i.e.:- | |
922 | * | |
923 | * o DAC to output pin. | |
924 | * o Input Pin to ADC. | |
925 | * o Input pin to Output pin (bypass, sidetone) | |
926 | * o DAC to ADC (loopback). | |
927 | */ | |
ce6120cc | 928 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 929 | { |
ce6120cc | 930 | struct snd_soc_card *card = dapm->codec->card; |
2b97eabc | 931 | struct snd_soc_dapm_widget *w; |
291f3bbc MB |
932 | LIST_HEAD(up_list); |
933 | LIST_HEAD(down_list); | |
6d3ddc81 | 934 | int ret = 0; |
38357ab2 | 935 | int power; |
452c5eaa | 936 | int sys_power = 0; |
6d3ddc81 | 937 | |
84e90930 MB |
938 | trace_snd_soc_dapm_start(card); |
939 | ||
6d3ddc81 MB |
940 | /* Check which widgets we need to power and store them in |
941 | * lists indicating if they should be powered up or down. | |
942 | */ | |
ce6120cc | 943 | list_for_each_entry(w, &dapm->widgets, list) { |
6d3ddc81 MB |
944 | switch (w->id) { |
945 | case snd_soc_dapm_pre: | |
291f3bbc | 946 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
947 | break; |
948 | case snd_soc_dapm_post: | |
291f3bbc | 949 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 MB |
950 | break; |
951 | ||
952 | default: | |
953 | if (!w->power_check) | |
954 | continue; | |
955 | ||
9949788b | 956 | if (!w->force) |
50b6bce5 | 957 | power = w->power_check(w); |
9949788b MB |
958 | else |
959 | power = 1; | |
960 | if (power) | |
961 | sys_power = 1; | |
452c5eaa | 962 | |
6d3ddc81 MB |
963 | if (w->power == power) |
964 | continue; | |
965 | ||
84e90930 MB |
966 | trace_snd_soc_dapm_widget_power(w, power); |
967 | ||
6d3ddc81 | 968 | if (power) |
291f3bbc | 969 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 | 970 | else |
291f3bbc | 971 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
972 | |
973 | w->power = power; | |
974 | break; | |
975 | } | |
2b97eabc RP |
976 | } |
977 | ||
b14b76a5 MB |
978 | /* If there are no DAPM widgets then try to figure out power from the |
979 | * event type. | |
980 | */ | |
ce6120cc | 981 | if (list_empty(&dapm->widgets)) { |
b14b76a5 MB |
982 | switch (event) { |
983 | case SND_SOC_DAPM_STREAM_START: | |
984 | case SND_SOC_DAPM_STREAM_RESUME: | |
985 | sys_power = 1; | |
986 | break; | |
862af8ad | 987 | case SND_SOC_DAPM_STREAM_STOP: |
0f0e2528 | 988 | sys_power = !!dapm->codec->active; |
862af8ad | 989 | break; |
50b6bce5 MB |
990 | case SND_SOC_DAPM_STREAM_SUSPEND: |
991 | sys_power = 0; | |
992 | break; | |
b14b76a5 | 993 | case SND_SOC_DAPM_STREAM_NOP: |
ce6120cc | 994 | switch (dapm->bias_level) { |
a96ca338 MB |
995 | case SND_SOC_BIAS_STANDBY: |
996 | case SND_SOC_BIAS_OFF: | |
997 | sys_power = 0; | |
998 | break; | |
999 | default: | |
1000 | sys_power = 1; | |
1001 | break; | |
1002 | } | |
50b6bce5 | 1003 | break; |
b14b76a5 MB |
1004 | default: |
1005 | break; | |
1006 | } | |
1007 | } | |
1008 | ||
ce6120cc LG |
1009 | if (sys_power && dapm->bias_level == SND_SOC_BIAS_OFF) { |
1010 | ret = snd_soc_dapm_set_bias_level(card, dapm, | |
a96ca338 MB |
1011 | SND_SOC_BIAS_STANDBY); |
1012 | if (ret != 0) | |
f7d41ae8 JN |
1013 | dev_err(dapm->dev, |
1014 | "Failed to turn on bias: %d\n", ret); | |
a96ca338 MB |
1015 | } |
1016 | ||
452c5eaa | 1017 | /* If we're changing to all on or all off then prepare */ |
ce6120cc LG |
1018 | if ((sys_power && dapm->bias_level == SND_SOC_BIAS_STANDBY) || |
1019 | (!sys_power && dapm->bias_level == SND_SOC_BIAS_ON)) { | |
1020 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_PREPARE); | |
452c5eaa | 1021 | if (ret != 0) |
f7d41ae8 JN |
1022 | dev_err(dapm->dev, |
1023 | "Failed to prepare bias: %d\n", ret); | |
452c5eaa MB |
1024 | } |
1025 | ||
6d3ddc81 | 1026 | /* Power down widgets first; try to avoid amplifying pops. */ |
ce6120cc | 1027 | dapm_seq_run(dapm, &down_list, event, dapm_down_seq); |
2b97eabc | 1028 | |
6d3ddc81 | 1029 | /* Now power up. */ |
ce6120cc | 1030 | dapm_seq_run(dapm, &up_list, event, dapm_up_seq); |
2b97eabc | 1031 | |
452c5eaa | 1032 | /* If we just powered the last thing off drop to standby bias */ |
ce6120cc LG |
1033 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) { |
1034 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_STANDBY); | |
452c5eaa | 1035 | if (ret != 0) |
f7d41ae8 JN |
1036 | dev_err(dapm->dev, |
1037 | "Failed to apply standby bias: %d\n", ret); | |
452c5eaa MB |
1038 | } |
1039 | ||
a96ca338 | 1040 | /* If we're in standby and can support bias off then do that */ |
ce6120cc LG |
1041 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY && |
1042 | dapm->idle_bias_off) { | |
1043 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_OFF); | |
a96ca338 | 1044 | if (ret != 0) |
f7d41ae8 JN |
1045 | dev_err(dapm->dev, |
1046 | "Failed to turn off bias: %d\n", ret); | |
a96ca338 MB |
1047 | } |
1048 | ||
452c5eaa | 1049 | /* If we just powered up then move to active bias */ |
ce6120cc LG |
1050 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE && sys_power) { |
1051 | ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_ON); | |
452c5eaa | 1052 | if (ret != 0) |
f7d41ae8 JN |
1053 | dev_err(dapm->dev, |
1054 | "Failed to apply active bias: %d\n", ret); | |
452c5eaa MB |
1055 | } |
1056 | ||
fd8d3bc0 JN |
1057 | pop_dbg(dapm->dev, card->pop_time, |
1058 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1059 | pop_wait(card->pop_time); |
cb507e7e | 1060 | |
84e90930 MB |
1061 | trace_snd_soc_dapm_done(card); |
1062 | ||
42aa3418 | 1063 | return 0; |
2b97eabc RP |
1064 | } |
1065 | ||
79fb9387 MB |
1066 | #ifdef CONFIG_DEBUG_FS |
1067 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1068 | { | |
1069 | file->private_data = inode->i_private; | |
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1074 | char __user *user_buf, | |
1075 | size_t count, loff_t *ppos) | |
1076 | { | |
1077 | struct snd_soc_dapm_widget *w = file->private_data; | |
1078 | char *buf; | |
1079 | int in, out; | |
1080 | ssize_t ret; | |
1081 | struct snd_soc_dapm_path *p = NULL; | |
1082 | ||
1083 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1084 | if (!buf) | |
1085 | return -ENOMEM; | |
1086 | ||
1087 | in = is_connected_input_ep(w); | |
ce6120cc | 1088 | dapm_clear_walk(w->dapm); |
79fb9387 | 1089 | out = is_connected_output_ep(w); |
ce6120cc | 1090 | dapm_clear_walk(w->dapm); |
79fb9387 | 1091 | |
d033c36a | 1092 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1093 | w->name, w->power ? "On" : "Off", in, out); |
1094 | ||
d033c36a MB |
1095 | if (w->reg >= 0) |
1096 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1097 | " - R%d(0x%x) bit %d", | |
1098 | w->reg, w->reg, w->shift); | |
1099 | ||
1100 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1101 | ||
3eef08ba MB |
1102 | if (w->sname) |
1103 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1104 | w->sname, | |
1105 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1106 | |
1107 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1108 | if (p->connected && !p->connected(w, p->sink)) |
1109 | continue; | |
1110 | ||
79fb9387 MB |
1111 | if (p->connect) |
1112 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1113 | " in %s %s\n", | |
1114 | p->name ? p->name : "static", | |
1115 | p->source->name); | |
1116 | } | |
1117 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1118 | if (p->connected && !p->connected(w, p->sink)) |
1119 | continue; | |
1120 | ||
79fb9387 MB |
1121 | if (p->connect) |
1122 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1123 | " out %s %s\n", | |
1124 | p->name ? p->name : "static", | |
1125 | p->sink->name); | |
1126 | } | |
1127 | ||
1128 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1129 | ||
1130 | kfree(buf); | |
1131 | return ret; | |
1132 | } | |
1133 | ||
1134 | static const struct file_operations dapm_widget_power_fops = { | |
1135 | .open = dapm_widget_power_open_file, | |
1136 | .read = dapm_widget_power_read_file, | |
6038f373 | 1137 | .llseek = default_llseek, |
79fb9387 MB |
1138 | }; |
1139 | ||
ce6120cc | 1140 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1141 | { |
1142 | struct snd_soc_dapm_widget *w; | |
1143 | struct dentry *d; | |
1144 | ||
ce6120cc | 1145 | if (!dapm->debugfs_dapm) |
79fb9387 MB |
1146 | return; |
1147 | ||
ce6120cc | 1148 | list_for_each_entry(w, &dapm->widgets, list) { |
79fb9387 MB |
1149 | if (!w->name) |
1150 | continue; | |
1151 | ||
1152 | d = debugfs_create_file(w->name, 0444, | |
ce6120cc | 1153 | dapm->debugfs_dapm, w, |
79fb9387 MB |
1154 | &dapm_widget_power_fops); |
1155 | if (!d) | |
f7d41ae8 JN |
1156 | dev_warn(w->dapm->dev, |
1157 | "ASoC: Failed to create %s debugfs file\n", | |
1158 | w->name); | |
79fb9387 MB |
1159 | } |
1160 | } | |
1161 | #else | |
ce6120cc | 1162 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1163 | { |
1164 | } | |
1165 | #endif | |
1166 | ||
2b97eabc | 1167 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1168 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1169 | struct snd_kcontrol *kcontrol, int change, |
1170 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1171 | { |
1172 | struct snd_soc_dapm_path *path; | |
1173 | int found = 0; | |
1174 | ||
eff317d0 PU |
1175 | if (widget->id != snd_soc_dapm_mux && |
1176 | widget->id != snd_soc_dapm_value_mux) | |
2b97eabc RP |
1177 | return -ENODEV; |
1178 | ||
3a65577d | 1179 | if (!change) |
2b97eabc RP |
1180 | return 0; |
1181 | ||
1182 | /* find dapm widget path assoc with kcontrol */ | |
8ddab3f5 | 1183 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1184 | if (path->kcontrol != kcontrol) |
1185 | continue; | |
1186 | ||
cb01e2b9 | 1187 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1188 | continue; |
1189 | ||
1190 | found = 1; | |
1191 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1192 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1193 | path->connect = 1; /* new connection */ |
1194 | else | |
1195 | path->connect = 0; /* old connection must be powered down */ | |
1196 | } | |
1197 | ||
b91b8fa0 | 1198 | if (found) |
ce6120cc | 1199 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1200 | |
1201 | return 0; | |
1202 | } | |
2b97eabc | 1203 | |
1b075e3f | 1204 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1205 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1206 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1207 | { |
1208 | struct snd_soc_dapm_path *path; | |
1209 | int found = 0; | |
1210 | ||
1b075e3f | 1211 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1212 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1213 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1214 | return -ENODEV; |
1215 | ||
2b97eabc | 1216 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1217 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1218 | if (path->kcontrol != kcontrol) |
1219 | continue; | |
1220 | ||
1221 | /* found, now check type */ | |
1222 | found = 1; | |
283375ce | 1223 | path->connect = connect; |
2b97eabc RP |
1224 | break; |
1225 | } | |
1226 | ||
b91b8fa0 | 1227 | if (found) |
ce6120cc | 1228 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1229 | |
1230 | return 0; | |
1231 | } | |
2b97eabc RP |
1232 | |
1233 | /* show dapm widget status in sys fs */ | |
1234 | static ssize_t dapm_widget_show(struct device *dev, | |
1235 | struct device_attribute *attr, char *buf) | |
1236 | { | |
f0fba2ad LG |
1237 | struct snd_soc_pcm_runtime *rtd = |
1238 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1239 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1240 | struct snd_soc_dapm_widget *w; |
1241 | int count = 0; | |
1242 | char *state = "not set"; | |
1243 | ||
ce6120cc | 1244 | list_for_each_entry(w, &codec->dapm.widgets, list) { |
2b97eabc RP |
1245 | |
1246 | /* only display widgets that burnm power */ | |
1247 | switch (w->id) { | |
1248 | case snd_soc_dapm_hp: | |
1249 | case snd_soc_dapm_mic: | |
1250 | case snd_soc_dapm_spk: | |
1251 | case snd_soc_dapm_line: | |
1252 | case snd_soc_dapm_micbias: | |
1253 | case snd_soc_dapm_dac: | |
1254 | case snd_soc_dapm_adc: | |
1255 | case snd_soc_dapm_pga: | |
d88429a6 | 1256 | case snd_soc_dapm_out_drv: |
2b97eabc | 1257 | case snd_soc_dapm_mixer: |
ca9c1aae | 1258 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1259 | case snd_soc_dapm_supply: |
2b97eabc RP |
1260 | if (w->name) |
1261 | count += sprintf(buf + count, "%s: %s\n", | |
1262 | w->name, w->power ? "On":"Off"); | |
1263 | break; | |
1264 | default: | |
1265 | break; | |
1266 | } | |
1267 | } | |
1268 | ||
ce6120cc | 1269 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1270 | case SND_SOC_BIAS_ON: |
1271 | state = "On"; | |
2b97eabc | 1272 | break; |
0be9898a MB |
1273 | case SND_SOC_BIAS_PREPARE: |
1274 | state = "Prepare"; | |
2b97eabc | 1275 | break; |
0be9898a MB |
1276 | case SND_SOC_BIAS_STANDBY: |
1277 | state = "Standby"; | |
2b97eabc | 1278 | break; |
0be9898a MB |
1279 | case SND_SOC_BIAS_OFF: |
1280 | state = "Off"; | |
2b97eabc RP |
1281 | break; |
1282 | } | |
1283 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1284 | ||
1285 | return count; | |
1286 | } | |
1287 | ||
1288 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1289 | ||
1290 | int snd_soc_dapm_sys_add(struct device *dev) | |
1291 | { | |
12ef193d | 1292 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1293 | } |
1294 | ||
1295 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1296 | { | |
aef90843 | 1297 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1298 | } |
1299 | ||
1300 | /* free all dapm widgets and resources */ | |
ce6120cc | 1301 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1302 | { |
1303 | struct snd_soc_dapm_widget *w, *next_w; | |
1304 | struct snd_soc_dapm_path *p, *next_p; | |
1305 | ||
ce6120cc | 1306 | list_for_each_entry_safe(w, next_w, &dapm->widgets, list) { |
2b97eabc | 1307 | list_del(&w->list); |
8ddab3f5 JN |
1308 | /* |
1309 | * remove source and sink paths associated to this widget. | |
1310 | * While removing the path, remove reference to it from both | |
1311 | * source and sink widgets so that path is removed only once. | |
1312 | */ | |
1313 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1314 | list_del(&p->list_sink); | |
1315 | list_del(&p->list_source); | |
1316 | list_del(&p->list); | |
1317 | kfree(p->long_name); | |
1318 | kfree(p); | |
1319 | } | |
1320 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1321 | list_del(&p->list_sink); | |
1322 | list_del(&p->list_source); | |
1323 | list_del(&p->list); | |
1324 | kfree(p->long_name); | |
1325 | kfree(p); | |
1326 | } | |
ead9b919 | 1327 | kfree(w->name); |
2b97eabc RP |
1328 | kfree(w); |
1329 | } | |
2b97eabc RP |
1330 | } |
1331 | ||
ce6120cc | 1332 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, |
1649923d | 1333 | const char *pin, int status) |
a5302181 LG |
1334 | { |
1335 | struct snd_soc_dapm_widget *w; | |
1336 | ||
ce6120cc | 1337 | list_for_each_entry(w, &dapm->widgets, list) { |
a5302181 | 1338 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
1339 | dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n", |
1340 | pin, status); | |
a5302181 | 1341 | w->connected = status; |
5b9e87cc MB |
1342 | /* Allow disabling of forced pins */ |
1343 | if (status == 0) | |
1344 | w->force = 0; | |
a5302181 LG |
1345 | return 0; |
1346 | } | |
1347 | } | |
1348 | ||
f7d41ae8 | 1349 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
a5302181 LG |
1350 | return -EINVAL; |
1351 | } | |
1352 | ||
2b97eabc | 1353 | /** |
a5302181 | 1354 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1355 | * @dapm: DAPM context |
2b97eabc RP |
1356 | * |
1357 | * Walks all dapm audio paths and powers widgets according to their | |
1358 | * stream or path usage. | |
1359 | * | |
1360 | * Returns 0 for success. | |
1361 | */ | |
ce6120cc | 1362 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1363 | { |
ce6120cc | 1364 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1365 | } |
a5302181 | 1366 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1367 | |
ce6120cc | 1368 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1369 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1370 | { |
1371 | struct snd_soc_dapm_path *path; | |
1372 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
ead9b919 | 1373 | const char *sink; |
215edda3 | 1374 | const char *control = route->control; |
ead9b919 JN |
1375 | const char *source; |
1376 | char prefixed_sink[80]; | |
1377 | char prefixed_source[80]; | |
2b97eabc RP |
1378 | int ret = 0; |
1379 | ||
ead9b919 JN |
1380 | if (dapm->codec->name_prefix) { |
1381 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
1382 | dapm->codec->name_prefix, route->sink); | |
1383 | sink = prefixed_sink; | |
1384 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1385 | dapm->codec->name_prefix, route->source); | |
1386 | source = prefixed_source; | |
1387 | } else { | |
1388 | sink = route->sink; | |
1389 | source = route->source; | |
1390 | } | |
1391 | ||
2b97eabc | 1392 | /* find src and dest widgets */ |
ce6120cc | 1393 | list_for_each_entry(w, &dapm->widgets, list) { |
2b97eabc RP |
1394 | |
1395 | if (!wsink && !(strcmp(w->name, sink))) { | |
1396 | wsink = w; | |
1397 | continue; | |
1398 | } | |
1399 | if (!wsource && !(strcmp(w->name, source))) { | |
1400 | wsource = w; | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | if (wsource == NULL || wsink == NULL) | |
1405 | return -ENODEV; | |
1406 | ||
1407 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1408 | if (!path) | |
1409 | return -ENOMEM; | |
1410 | ||
1411 | path->source = wsource; | |
1412 | path->sink = wsink; | |
215edda3 | 1413 | path->connected = route->connected; |
2b97eabc RP |
1414 | INIT_LIST_HEAD(&path->list); |
1415 | INIT_LIST_HEAD(&path->list_source); | |
1416 | INIT_LIST_HEAD(&path->list_sink); | |
1417 | ||
1418 | /* check for external widgets */ | |
1419 | if (wsink->id == snd_soc_dapm_input) { | |
1420 | if (wsource->id == snd_soc_dapm_micbias || | |
1421 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1422 | wsource->id == snd_soc_dapm_line || |
1423 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1424 | wsink->ext = 1; |
1425 | } | |
1426 | if (wsource->id == snd_soc_dapm_output) { | |
1427 | if (wsink->id == snd_soc_dapm_spk || | |
1428 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1429 | wsink->id == snd_soc_dapm_line || |
1430 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1431 | wsource->ext = 1; |
1432 | } | |
1433 | ||
1434 | /* connect static paths */ | |
1435 | if (control == NULL) { | |
8ddab3f5 | 1436 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1437 | list_add(&path->list_sink, &wsink->sources); |
1438 | list_add(&path->list_source, &wsource->sinks); | |
1439 | path->connect = 1; | |
1440 | return 0; | |
1441 | } | |
1442 | ||
1443 | /* connect dynamic paths */ | |
1444 | switch(wsink->id) { | |
1445 | case snd_soc_dapm_adc: | |
1446 | case snd_soc_dapm_dac: | |
1447 | case snd_soc_dapm_pga: | |
d88429a6 | 1448 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
1449 | case snd_soc_dapm_input: |
1450 | case snd_soc_dapm_output: | |
1451 | case snd_soc_dapm_micbias: | |
1452 | case snd_soc_dapm_vmid: | |
1453 | case snd_soc_dapm_pre: | |
1454 | case snd_soc_dapm_post: | |
246d0a17 | 1455 | case snd_soc_dapm_supply: |
010ff262 MB |
1456 | case snd_soc_dapm_aif_in: |
1457 | case snd_soc_dapm_aif_out: | |
8ddab3f5 | 1458 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1459 | list_add(&path->list_sink, &wsink->sources); |
1460 | list_add(&path->list_source, &wsource->sinks); | |
1461 | path->connect = 1; | |
1462 | return 0; | |
1463 | case snd_soc_dapm_mux: | |
74155556 | 1464 | case snd_soc_dapm_value_mux: |
ce6120cc | 1465 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
2b97eabc RP |
1466 | &wsink->kcontrols[0]); |
1467 | if (ret != 0) | |
1468 | goto err; | |
1469 | break; | |
1470 | case snd_soc_dapm_switch: | |
1471 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1472 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1473 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1474 | if (ret != 0) |
1475 | goto err; | |
1476 | break; | |
1477 | case snd_soc_dapm_hp: | |
1478 | case snd_soc_dapm_mic: | |
1479 | case snd_soc_dapm_line: | |
1480 | case snd_soc_dapm_spk: | |
8ddab3f5 | 1481 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1482 | list_add(&path->list_sink, &wsink->sources); |
1483 | list_add(&path->list_source, &wsource->sinks); | |
1484 | path->connect = 0; | |
1485 | return 0; | |
1486 | } | |
1487 | return 0; | |
1488 | ||
1489 | err: | |
f7d41ae8 JN |
1490 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1491 | source, control, sink); | |
2b97eabc RP |
1492 | kfree(path); |
1493 | return ret; | |
1494 | } | |
105f1c28 | 1495 | |
105f1c28 MB |
1496 | /** |
1497 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1498 | * @dapm: DAPM context |
105f1c28 MB |
1499 | * @route: audio routes |
1500 | * @num: number of routes | |
1501 | * | |
1502 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1503 | * the widget receiving the audio signal, whilst the source is the sender | |
1504 | * of the audio signal. | |
1505 | * | |
1506 | * Returns 0 for success else error. On error all resources can be freed | |
1507 | * with a call to snd_soc_card_free(). | |
1508 | */ | |
ce6120cc | 1509 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1510 | const struct snd_soc_dapm_route *route, int num) |
1511 | { | |
1512 | int i, ret; | |
1513 | ||
1514 | for (i = 0; i < num; i++) { | |
ce6120cc | 1515 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1516 | if (ret < 0) { |
f7d41ae8 JN |
1517 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1518 | route->source, route->sink); | |
105f1c28 MB |
1519 | return ret; |
1520 | } | |
1521 | route++; | |
1522 | } | |
1523 | ||
1524 | return 0; | |
1525 | } | |
1526 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1527 | ||
2b97eabc RP |
1528 | /** |
1529 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 1530 | * @dapm: DAPM context |
2b97eabc RP |
1531 | * |
1532 | * Checks the codec for any new dapm widgets and creates them if found. | |
1533 | * | |
1534 | * Returns 0 for success. | |
1535 | */ | |
ce6120cc | 1536 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1537 | { |
1538 | struct snd_soc_dapm_widget *w; | |
1539 | ||
ce6120cc | 1540 | list_for_each_entry(w, &dapm->widgets, list) |
2b97eabc RP |
1541 | { |
1542 | if (w->new) | |
1543 | continue; | |
1544 | ||
1545 | switch(w->id) { | |
1546 | case snd_soc_dapm_switch: | |
1547 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1548 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 1549 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1550 | dapm_new_mixer(dapm, w); |
2b97eabc RP |
1551 | break; |
1552 | case snd_soc_dapm_mux: | |
2e72f8e3 | 1553 | case snd_soc_dapm_value_mux: |
b75576d7 | 1554 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1555 | dapm_new_mux(dapm, w); |
2b97eabc RP |
1556 | break; |
1557 | case snd_soc_dapm_adc: | |
010ff262 | 1558 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
1559 | w->power_check = dapm_adc_check_power; |
1560 | break; | |
2b97eabc | 1561 | case snd_soc_dapm_dac: |
010ff262 | 1562 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
1563 | w->power_check = dapm_dac_check_power; |
1564 | break; | |
2b97eabc | 1565 | case snd_soc_dapm_pga: |
d88429a6 | 1566 | case snd_soc_dapm_out_drv: |
b75576d7 | 1567 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1568 | dapm_new_pga(dapm, w); |
2b97eabc RP |
1569 | break; |
1570 | case snd_soc_dapm_input: | |
1571 | case snd_soc_dapm_output: | |
1572 | case snd_soc_dapm_micbias: | |
1573 | case snd_soc_dapm_spk: | |
1574 | case snd_soc_dapm_hp: | |
1575 | case snd_soc_dapm_mic: | |
1576 | case snd_soc_dapm_line: | |
b75576d7 MB |
1577 | w->power_check = dapm_generic_check_power; |
1578 | break; | |
246d0a17 MB |
1579 | case snd_soc_dapm_supply: |
1580 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
1581 | case snd_soc_dapm_vmid: |
1582 | case snd_soc_dapm_pre: | |
1583 | case snd_soc_dapm_post: | |
1584 | break; | |
1585 | } | |
1586 | w->new = 1; | |
1587 | } | |
1588 | ||
ce6120cc | 1589 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1590 | return 0; |
1591 | } | |
1592 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
1593 | ||
1594 | /** | |
1595 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
1596 | * @kcontrol: mixer control | |
ac11a2b3 | 1597 | * @ucontrol: control element information |
2b97eabc RP |
1598 | * |
1599 | * Callback to get the value of a dapm mixer control. | |
1600 | * | |
1601 | * Returns 0 for success. | |
1602 | */ | |
1603 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
1604 | struct snd_ctl_elem_value *ucontrol) | |
1605 | { | |
1606 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1607 | struct soc_mixer_control *mc = |
1608 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1609 | unsigned int reg = mc->reg; |
1610 | unsigned int shift = mc->shift; | |
1611 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1612 | int max = mc->max; |
815ecf8d JS |
1613 | unsigned int invert = mc->invert; |
1614 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 1615 | |
2b97eabc RP |
1616 | ucontrol->value.integer.value[0] = |
1617 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
1618 | if (shift != rshift) | |
1619 | ucontrol->value.integer.value[1] = | |
1620 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
1621 | if (invert) { | |
1622 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1623 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
1624 | if (shift != rshift) |
1625 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1626 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
1627 | } |
1628 | ||
1629 | return 0; | |
1630 | } | |
1631 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
1632 | ||
1633 | /** | |
1634 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
1635 | * @kcontrol: mixer control | |
ac11a2b3 | 1636 | * @ucontrol: control element information |
2b97eabc RP |
1637 | * |
1638 | * Callback to set the value of a dapm mixer control. | |
1639 | * | |
1640 | * Returns 0 for success. | |
1641 | */ | |
1642 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
1643 | struct snd_ctl_elem_value *ucontrol) | |
1644 | { | |
1645 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1646 | struct soc_mixer_control *mc = |
1647 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1648 | unsigned int reg = mc->reg; |
1649 | unsigned int shift = mc->shift; | |
1650 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1651 | int max = mc->max; |
815ecf8d JS |
1652 | unsigned int mask = (1 << fls(max)) - 1; |
1653 | unsigned int invert = mc->invert; | |
46f5822f | 1654 | unsigned int val, val2, val_mask; |
283375ce | 1655 | int connect; |
2b97eabc RP |
1656 | int ret; |
1657 | ||
1658 | val = (ucontrol->value.integer.value[0] & mask); | |
1659 | ||
1660 | if (invert) | |
a7a4ac86 | 1661 | val = max - val; |
2b97eabc RP |
1662 | val_mask = mask << shift; |
1663 | val = val << shift; | |
1664 | if (shift != rshift) { | |
1665 | val2 = (ucontrol->value.integer.value[1] & mask); | |
1666 | if (invert) | |
a7a4ac86 | 1667 | val2 = max - val2; |
2b97eabc RP |
1668 | val_mask |= mask << rshift; |
1669 | val |= val2 << rshift; | |
1670 | } | |
1671 | ||
1672 | mutex_lock(&widget->codec->mutex); | |
1673 | widget->value = val; | |
1674 | ||
283375ce MB |
1675 | if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) { |
1676 | if (val) | |
1677 | /* new connection */ | |
1678 | connect = invert ? 0:1; | |
1679 | else | |
1680 | /* old connection must be powered down */ | |
1681 | connect = invert ? 1:0; | |
1682 | ||
1683 | dapm_mixer_update_power(widget, kcontrol, connect); | |
1684 | } | |
1685 | ||
2b97eabc RP |
1686 | if (widget->event) { |
1687 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
9af6d956 LG |
1688 | ret = widget->event(widget, kcontrol, |
1689 | SND_SOC_DAPM_PRE_REG); | |
1690 | if (ret < 0) { | |
1691 | ret = 1; | |
2b97eabc | 1692 | goto out; |
9af6d956 | 1693 | } |
2b97eabc RP |
1694 | } |
1695 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); | |
1696 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
9af6d956 LG |
1697 | ret = widget->event(widget, kcontrol, |
1698 | SND_SOC_DAPM_POST_REG); | |
2b97eabc RP |
1699 | } else |
1700 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); | |
1701 | ||
1702 | out: | |
1703 | mutex_unlock(&widget->codec->mutex); | |
1704 | return ret; | |
1705 | } | |
1706 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
1707 | ||
1708 | /** | |
1709 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
1710 | * @kcontrol: mixer control | |
ac11a2b3 | 1711 | * @ucontrol: control element information |
2b97eabc RP |
1712 | * |
1713 | * Callback to get the value of a dapm enumerated double mixer control. | |
1714 | * | |
1715 | * Returns 0 for success. | |
1716 | */ | |
1717 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
1718 | struct snd_ctl_elem_value *ucontrol) | |
1719 | { | |
1720 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1721 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1722 | unsigned int val, bitmask; |
2b97eabc | 1723 | |
f8ba0b7b | 1724 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
1725 | ; |
1726 | val = snd_soc_read(widget->codec, e->reg); | |
1727 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
1728 | if (e->shift_l != e->shift_r) | |
1729 | ucontrol->value.enumerated.item[1] = | |
1730 | (val >> e->shift_r) & (bitmask - 1); | |
1731 | ||
1732 | return 0; | |
1733 | } | |
1734 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
1735 | ||
1736 | /** | |
1737 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
1738 | * @kcontrol: mixer control | |
ac11a2b3 | 1739 | * @ucontrol: control element information |
2b97eabc RP |
1740 | * |
1741 | * Callback to set the value of a dapm enumerated double mixer control. | |
1742 | * | |
1743 | * Returns 0 for success. | |
1744 | */ | |
1745 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
1746 | struct snd_ctl_elem_value *ucontrol) | |
1747 | { | |
1748 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1749 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
3a65577d | 1750 | unsigned int val, mux, change; |
46f5822f | 1751 | unsigned int mask, bitmask; |
2b97eabc RP |
1752 | int ret = 0; |
1753 | ||
f8ba0b7b | 1754 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 1755 | ; |
f8ba0b7b | 1756 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
1757 | return -EINVAL; |
1758 | mux = ucontrol->value.enumerated.item[0]; | |
1759 | val = mux << e->shift_l; | |
1760 | mask = (bitmask - 1) << e->shift_l; | |
1761 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1762 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
1763 | return -EINVAL; |
1764 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1765 | mask |= (bitmask - 1) << e->shift_r; | |
1766 | } | |
1767 | ||
1768 | mutex_lock(&widget->codec->mutex); | |
1769 | widget->value = val; | |
3a65577d MB |
1770 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1771 | dapm_mux_update_power(widget, kcontrol, change, mux, e); | |
1642e3d4 MB |
1772 | |
1773 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
1774 | ret = widget->event(widget, | |
1775 | kcontrol, SND_SOC_DAPM_PRE_REG); | |
1776 | if (ret < 0) | |
1777 | goto out; | |
1778 | } | |
1779 | ||
1780 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); | |
1781 | ||
1782 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
1783 | ret = widget->event(widget, | |
1784 | kcontrol, SND_SOC_DAPM_POST_REG); | |
2b97eabc RP |
1785 | |
1786 | out: | |
1787 | mutex_unlock(&widget->codec->mutex); | |
1788 | return ret; | |
1789 | } | |
1790 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
1791 | ||
d2b247a8 MB |
1792 | /** |
1793 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
1794 | * @kcontrol: mixer control | |
1795 | * @ucontrol: control element information | |
1796 | * | |
1797 | * Returns 0 for success. | |
1798 | */ | |
1799 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
1800 | struct snd_ctl_elem_value *ucontrol) | |
1801 | { | |
1802 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1803 | ||
1804 | ucontrol->value.enumerated.item[0] = widget->value; | |
1805 | ||
1806 | return 0; | |
1807 | } | |
1808 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
1809 | ||
1810 | /** | |
1811 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
1812 | * @kcontrol: mixer control | |
1813 | * @ucontrol: control element information | |
1814 | * | |
1815 | * Returns 0 for success. | |
1816 | */ | |
1817 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
1818 | struct snd_ctl_elem_value *ucontrol) | |
1819 | { | |
1820 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1821 | struct soc_enum *e = | |
1822 | (struct soc_enum *)kcontrol->private_value; | |
1823 | int change; | |
1824 | int ret = 0; | |
1825 | ||
1826 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
1827 | return -EINVAL; | |
1828 | ||
1829 | mutex_lock(&widget->codec->mutex); | |
1830 | ||
1831 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
1832 | widget->value = ucontrol->value.enumerated.item[0]; | |
1833 | dapm_mux_update_power(widget, kcontrol, change, widget->value, e); | |
1834 | ||
1835 | mutex_unlock(&widget->codec->mutex); | |
1836 | return ret; | |
1837 | } | |
1838 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
1839 | ||
2e72f8e3 PU |
1840 | /** |
1841 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
1842 | * callback | |
1843 | * @kcontrol: mixer control | |
1844 | * @ucontrol: control element information | |
1845 | * | |
1846 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
1847 | * | |
1848 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1849 | * used for handling bitfield coded enumeration for example. | |
1850 | * | |
1851 | * Returns 0 for success. | |
1852 | */ | |
1853 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1854 | struct snd_ctl_elem_value *ucontrol) | |
1855 | { | |
1856 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1857 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 1858 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
1859 | |
1860 | reg_val = snd_soc_read(widget->codec, e->reg); | |
1861 | val = (reg_val >> e->shift_l) & e->mask; | |
1862 | for (mux = 0; mux < e->max; mux++) { | |
1863 | if (val == e->values[mux]) | |
1864 | break; | |
1865 | } | |
1866 | ucontrol->value.enumerated.item[0] = mux; | |
1867 | if (e->shift_l != e->shift_r) { | |
1868 | val = (reg_val >> e->shift_r) & e->mask; | |
1869 | for (mux = 0; mux < e->max; mux++) { | |
1870 | if (val == e->values[mux]) | |
1871 | break; | |
1872 | } | |
1873 | ucontrol->value.enumerated.item[1] = mux; | |
1874 | } | |
1875 | ||
1876 | return 0; | |
1877 | } | |
1878 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
1879 | ||
1880 | /** | |
1881 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
1882 | * callback | |
1883 | * @kcontrol: mixer control | |
1884 | * @ucontrol: control element information | |
1885 | * | |
1886 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
1887 | * | |
1888 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1889 | * used for handling bitfield coded enumeration for example. | |
1890 | * | |
1891 | * Returns 0 for success. | |
1892 | */ | |
1893 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
1894 | struct snd_ctl_elem_value *ucontrol) | |
1895 | { | |
1896 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1897 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 1898 | unsigned int val, mux, change; |
46f5822f | 1899 | unsigned int mask; |
2e72f8e3 PU |
1900 | int ret = 0; |
1901 | ||
1902 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1903 | return -EINVAL; | |
1904 | mux = ucontrol->value.enumerated.item[0]; | |
1905 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1906 | mask = e->mask << e->shift_l; | |
1907 | if (e->shift_l != e->shift_r) { | |
1908 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1909 | return -EINVAL; | |
1910 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1911 | mask |= e->mask << e->shift_r; | |
1912 | } | |
1913 | ||
1914 | mutex_lock(&widget->codec->mutex); | |
1915 | widget->value = val; | |
3a65577d MB |
1916 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1917 | dapm_mux_update_power(widget, kcontrol, change, mux, e); | |
1642e3d4 MB |
1918 | |
1919 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { | |
1920 | ret = widget->event(widget, | |
1921 | kcontrol, SND_SOC_DAPM_PRE_REG); | |
1922 | if (ret < 0) | |
1923 | goto out; | |
1924 | } | |
1925 | ||
1926 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); | |
1927 | ||
1928 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) | |
1929 | ret = widget->event(widget, | |
1930 | kcontrol, SND_SOC_DAPM_POST_REG); | |
2e72f8e3 PU |
1931 | |
1932 | out: | |
1933 | mutex_unlock(&widget->codec->mutex); | |
1934 | return ret; | |
1935 | } | |
1936 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
1937 | ||
8b37dbd2 MB |
1938 | /** |
1939 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
1940 | * | |
1941 | * @kcontrol: mixer control | |
1942 | * @uinfo: control element information | |
1943 | * | |
1944 | * Callback to provide information about a pin switch control. | |
1945 | */ | |
1946 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
1947 | struct snd_ctl_elem_info *uinfo) | |
1948 | { | |
1949 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
1950 | uinfo->count = 1; | |
1951 | uinfo->value.integer.min = 0; | |
1952 | uinfo->value.integer.max = 1; | |
1953 | ||
1954 | return 0; | |
1955 | } | |
1956 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
1957 | ||
1958 | /** | |
1959 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
1960 | * | |
1961 | * @kcontrol: mixer control | |
1962 | * @ucontrol: Value | |
1963 | */ | |
1964 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
1965 | struct snd_ctl_elem_value *ucontrol) | |
1966 | { | |
1967 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1968 | const char *pin = (const char *)kcontrol->private_value; | |
1969 | ||
1970 | mutex_lock(&codec->mutex); | |
1971 | ||
1972 | ucontrol->value.integer.value[0] = | |
ce6120cc | 1973 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
1974 | |
1975 | mutex_unlock(&codec->mutex); | |
1976 | ||
1977 | return 0; | |
1978 | } | |
1979 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
1980 | ||
1981 | /** | |
1982 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
1983 | * | |
1984 | * @kcontrol: mixer control | |
1985 | * @ucontrol: Value | |
1986 | */ | |
1987 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
1988 | struct snd_ctl_elem_value *ucontrol) | |
1989 | { | |
1990 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
1991 | const char *pin = (const char *)kcontrol->private_value; | |
1992 | ||
1993 | mutex_lock(&codec->mutex); | |
1994 | ||
1995 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 1996 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 1997 | else |
ce6120cc | 1998 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 1999 | |
ce6120cc | 2000 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
2001 | |
2002 | mutex_unlock(&codec->mutex); | |
2003 | ||
2004 | return 0; | |
2005 | } | |
2006 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2007 | ||
2b97eabc RP |
2008 | /** |
2009 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 2010 | * @dapm: DAPM context |
2b97eabc RP |
2011 | * @widget: widget template |
2012 | * | |
2013 | * Creates a new dapm control based upon the template. | |
2014 | * | |
2015 | * Returns 0 for success else error. | |
2016 | */ | |
ce6120cc | 2017 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
2018 | const struct snd_soc_dapm_widget *widget) |
2019 | { | |
2020 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2021 | size_t name_len; |
2b97eabc RP |
2022 | |
2023 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
2024 | return -ENOMEM; | |
2025 | ||
ead9b919 JN |
2026 | name_len = strlen(widget->name) + 1; |
2027 | if (dapm->codec->name_prefix) | |
2028 | name_len += 1 + strlen(dapm->codec->name_prefix); | |
2029 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2030 | if (w->name == NULL) { | |
2031 | kfree(w); | |
2032 | return -ENOMEM; | |
2033 | } | |
2034 | if (dapm->codec->name_prefix) | |
2035 | snprintf(w->name, name_len, "%s %s", | |
2036 | dapm->codec->name_prefix, widget->name); | |
2037 | else | |
2038 | snprintf(w->name, name_len, "%s", widget->name); | |
2039 | ||
ce6120cc LG |
2040 | w->dapm = dapm; |
2041 | w->codec = dapm->codec; | |
2b97eabc RP |
2042 | INIT_LIST_HEAD(&w->sources); |
2043 | INIT_LIST_HEAD(&w->sinks); | |
2044 | INIT_LIST_HEAD(&w->list); | |
ce6120cc | 2045 | list_add(&w->list, &dapm->widgets); |
2b97eabc RP |
2046 | |
2047 | /* machine layer set ups unconnected pins and insertions */ | |
2048 | w->connected = 1; | |
2049 | return 0; | |
2050 | } | |
2051 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2052 | ||
4ba1327a MB |
2053 | /** |
2054 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2055 | * @dapm: DAPM context |
4ba1327a MB |
2056 | * @widget: widget array |
2057 | * @num: number of widgets | |
2058 | * | |
2059 | * Creates new DAPM controls based upon the templates. | |
2060 | * | |
2061 | * Returns 0 for success else error. | |
2062 | */ | |
ce6120cc | 2063 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2064 | const struct snd_soc_dapm_widget *widget, |
2065 | int num) | |
2066 | { | |
2067 | int i, ret; | |
2068 | ||
2069 | for (i = 0; i < num; i++) { | |
ce6120cc | 2070 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2071 | if (ret < 0) { |
f7d41ae8 JN |
2072 | dev_err(dapm->dev, |
2073 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2074 | widget->name, ret); | |
4ba1327a | 2075 | return ret; |
b8b33cb5 | 2076 | } |
4ba1327a MB |
2077 | widget++; |
2078 | } | |
2079 | return 0; | |
2080 | } | |
2081 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2082 | ||
ce6120cc | 2083 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2084 | const char *stream, int event) |
2b97eabc RP |
2085 | { |
2086 | struct snd_soc_dapm_widget *w; | |
2087 | ||
ce6120cc | 2088 | list_for_each_entry(w, &dapm->widgets, list) |
2b97eabc RP |
2089 | { |
2090 | if (!w->sname) | |
2091 | continue; | |
f7d41ae8 JN |
2092 | dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
2093 | w->name, w->sname, stream, event); | |
2b97eabc RP |
2094 | if (strstr(w->sname, stream)) { |
2095 | switch(event) { | |
2096 | case SND_SOC_DAPM_STREAM_START: | |
2097 | w->active = 1; | |
2098 | break; | |
2099 | case SND_SOC_DAPM_STREAM_STOP: | |
2100 | w->active = 0; | |
2101 | break; | |
2102 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2103 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2104 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2105 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2106 | break; | |
2107 | } | |
2108 | } | |
2109 | } | |
2b97eabc | 2110 | |
ce6120cc LG |
2111 | dapm_power_widgets(dapm, event); |
2112 | } | |
2113 | ||
2114 | /** | |
2115 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2116 | * @rtd: PCM runtime data | |
2117 | * @stream: stream name | |
2118 | * @event: stream event | |
2119 | * | |
2120 | * Sends a stream event to the dapm core. The core then makes any | |
2121 | * necessary widget power changes. | |
2122 | * | |
2123 | * Returns 0 for success else error. | |
2124 | */ | |
2125 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2126 | const char *stream, int event) | |
2127 | { | |
2128 | struct snd_soc_codec *codec = rtd->codec; | |
2129 | ||
2130 | if (stream == NULL) | |
2131 | return 0; | |
2132 | ||
2133 | mutex_lock(&codec->mutex); | |
2134 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2135 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2136 | return 0; |
2137 | } | |
2138 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); | |
2139 | ||
2140 | /** | |
a5302181 | 2141 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2142 | * @dapm: DAPM context |
a5302181 | 2143 | * @pin: pin name |
2b97eabc | 2144 | * |
74b8f955 | 2145 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2146 | * a valid audio route and active audio stream. |
2147 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2148 | * do any widget power switching. | |
2b97eabc | 2149 | */ |
ce6120cc | 2150 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2151 | { |
ce6120cc | 2152 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2153 | } |
2154 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2155 | |
da34183e MB |
2156 | /** |
2157 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2158 | * @dapm: DAPM context |
da34183e MB |
2159 | * @pin: pin name |
2160 | * | |
2161 | * Enables input/output pin regardless of any other state. This is | |
2162 | * intended for use with microphone bias supplies used in microphone | |
2163 | * jack detection. | |
2164 | * | |
2165 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2166 | * do any widget power switching. | |
2167 | */ | |
ce6120cc LG |
2168 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2169 | const char *pin) | |
da34183e MB |
2170 | { |
2171 | struct snd_soc_dapm_widget *w; | |
2172 | ||
ce6120cc | 2173 | list_for_each_entry(w, &dapm->widgets, list) { |
da34183e | 2174 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
2175 | dev_dbg(w->dapm->dev, |
2176 | "dapm: force enable pin %s\n", pin); | |
da34183e MB |
2177 | w->connected = 1; |
2178 | w->force = 1; | |
2179 | return 0; | |
2180 | } | |
2181 | } | |
2182 | ||
f7d41ae8 | 2183 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
da34183e MB |
2184 | return -EINVAL; |
2185 | } | |
2186 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2187 | ||
a5302181 LG |
2188 | /** |
2189 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2190 | * @dapm: DAPM context |
a5302181 LG |
2191 | * @pin: pin name |
2192 | * | |
74b8f955 | 2193 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2194 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2195 | * do any widget power switching. | |
2196 | */ | |
ce6120cc LG |
2197 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2198 | const char *pin) | |
a5302181 | 2199 | { |
ce6120cc | 2200 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2201 | } |
a5302181 | 2202 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2203 | |
5817b52a MB |
2204 | /** |
2205 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2206 | * @dapm: DAPM context |
5817b52a MB |
2207 | * @pin: pin name |
2208 | * | |
2209 | * Marks the specified pin as being not connected, disabling it along | |
2210 | * any parent or child widgets. At present this is identical to | |
2211 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2212 | * additional things such as disabling controls which only affect | |
2213 | * paths through the pin. | |
2214 | * | |
2215 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2216 | * do any widget power switching. | |
2217 | */ | |
ce6120cc | 2218 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2219 | { |
ce6120cc | 2220 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2221 | } |
2222 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2223 | ||
eeec12bf | 2224 | /** |
a5302181 | 2225 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2226 | * @dapm: DAPM context |
a5302181 | 2227 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2228 | * |
a5302181 | 2229 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2230 | * |
a5302181 | 2231 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2232 | */ |
ce6120cc LG |
2233 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2234 | const char *pin) | |
eeec12bf GG |
2235 | { |
2236 | struct snd_soc_dapm_widget *w; | |
2237 | ||
ce6120cc | 2238 | list_for_each_entry(w, &dapm->widgets, list) { |
a5302181 | 2239 | if (!strcmp(w->name, pin)) |
eeec12bf GG |
2240 | return w->connected; |
2241 | } | |
2242 | ||
2243 | return 0; | |
2244 | } | |
a5302181 | 2245 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2246 | |
1547aba9 MB |
2247 | /** |
2248 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2249 | * @dapm: DAPM context |
1547aba9 MB |
2250 | * @pin: audio signal pin endpoint (or start point) |
2251 | * | |
2252 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2253 | * system is disabled a path between two endpoints flagged as ignoring | |
2254 | * suspend will not be disabled. The path must already be enabled via | |
2255 | * normal means at suspend time, it will not be turned on if it was not | |
2256 | * already enabled. | |
2257 | */ | |
ce6120cc LG |
2258 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2259 | const char *pin) | |
1547aba9 MB |
2260 | { |
2261 | struct snd_soc_dapm_widget *w; | |
2262 | ||
ce6120cc | 2263 | list_for_each_entry(w, &dapm->widgets, list) { |
1547aba9 MB |
2264 | if (!strcmp(w->name, pin)) { |
2265 | w->ignore_suspend = 1; | |
2266 | return 0; | |
2267 | } | |
2268 | } | |
2269 | ||
f7d41ae8 | 2270 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
1547aba9 MB |
2271 | return -EINVAL; |
2272 | } | |
2273 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2274 | ||
2b97eabc RP |
2275 | /** |
2276 | * snd_soc_dapm_free - free dapm resources | |
f0fba2ad | 2277 | * @card: SoC device |
2b97eabc RP |
2278 | * |
2279 | * Free all dapm widgets and resources. | |
2280 | */ | |
ce6120cc | 2281 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2282 | { |
ce6120cc LG |
2283 | snd_soc_dapm_sys_remove(dapm->dev); |
2284 | dapm_free_widgets(dapm); | |
2b97eabc RP |
2285 | } |
2286 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2287 | ||
ce6120cc | 2288 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2289 | { |
51737470 MB |
2290 | struct snd_soc_dapm_widget *w; |
2291 | LIST_HEAD(down_list); | |
2292 | int powerdown = 0; | |
2293 | ||
ce6120cc | 2294 | list_for_each_entry(w, &dapm->widgets, list) { |
51737470 MB |
2295 | if (w->power) { |
2296 | dapm_seq_insert(w, &down_list, dapm_down_seq); | |
c2caa4da | 2297 | w->power = 0; |
51737470 MB |
2298 | powerdown = 1; |
2299 | } | |
2300 | } | |
2301 | ||
2302 | /* If there were no widgets to power down we're already in | |
2303 | * standby. | |
2304 | */ | |
2305 | if (powerdown) { | |
ce6120cc LG |
2306 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_PREPARE); |
2307 | dapm_seq_run(dapm, &down_list, 0, dapm_down_seq); | |
2308 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_STANDBY); | |
51737470 | 2309 | } |
f0fba2ad LG |
2310 | } |
2311 | ||
2312 | /* | |
2313 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2314 | */ | |
2315 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2316 | { | |
2317 | struct snd_soc_codec *codec; | |
2318 | ||
ce6120cc LG |
2319 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2320 | soc_dapm_shutdown_codec(&codec->dapm); | |
2321 | snd_soc_dapm_set_bias_level(card, &codec->dapm, SND_SOC_BIAS_OFF); | |
2322 | } | |
51737470 MB |
2323 | } |
2324 | ||
2b97eabc | 2325 | /* Module information */ |
d331124d | 2326 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2327 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2328 | MODULE_LICENSE("GPL"); |