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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, | |
24ff33ac | 59 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
60 | [snd_soc_dapm_value_mux] = 5, |
61 | [snd_soc_dapm_dac] = 6, | |
62 | [snd_soc_dapm_mixer] = 7, | |
63 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
64 | [snd_soc_dapm_pga] = 8, | |
65 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 66 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
67 | [snd_soc_dapm_hp] = 10, |
68 | [snd_soc_dapm_spk] = 10, | |
69 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 70 | }; |
ca9c1aae | 71 | |
2b97eabc | 72 | static int dapm_down_seq[] = { |
38357ab2 MB |
73 | [snd_soc_dapm_pre] = 0, |
74 | [snd_soc_dapm_adc] = 1, | |
75 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 76 | [snd_soc_dapm_spk] = 2, |
d88429a6 | 77 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
78 | [snd_soc_dapm_pga] = 4, |
79 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
80 | [snd_soc_dapm_mixer] = 5, |
81 | [snd_soc_dapm_dac] = 6, | |
82 | [snd_soc_dapm_mic] = 7, | |
83 | [snd_soc_dapm_micbias] = 8, | |
84 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 85 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 86 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
87 | [snd_soc_dapm_aif_in] = 10, |
88 | [snd_soc_dapm_aif_out] = 10, | |
89 | [snd_soc_dapm_supply] = 11, | |
90 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
91 | }; |
92 | ||
12ef193d | 93 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
94 | { |
95 | if (pop_time) | |
96 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
97 | } | |
98 | ||
fd8d3bc0 | 99 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
100 | { |
101 | va_list args; | |
fd8d3bc0 | 102 | char *buf; |
15e4c72f | 103 | |
fd8d3bc0 JN |
104 | if (!pop_time) |
105 | return; | |
15e4c72f | 106 | |
fd8d3bc0 JN |
107 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
108 | if (buf == NULL) | |
109 | return; | |
15e4c72f | 110 | |
fd8d3bc0 JN |
111 | va_start(args, fmt); |
112 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 113 | dev_info(dev, "%s", buf); |
15e4c72f | 114 | va_end(args); |
fd8d3bc0 JN |
115 | |
116 | kfree(buf); | |
15e4c72f MB |
117 | } |
118 | ||
2b97eabc | 119 | /* create a new dapm widget */ |
88cb4290 | 120 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
121 | const struct snd_soc_dapm_widget *_widget) |
122 | { | |
88cb4290 | 123 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
124 | } |
125 | ||
452c5eaa MB |
126 | /** |
127 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
f0fba2ad | 128 | * @card: audio device |
452c5eaa MB |
129 | * @level: level to configure |
130 | * | |
131 | * Configure the bias (power) levels for the SoC audio device. | |
132 | * | |
133 | * Returns 0 for success else error. | |
134 | */ | |
f0fba2ad | 135 | static int snd_soc_dapm_set_bias_level(struct snd_soc_card *card, |
ce6120cc LG |
136 | struct snd_soc_dapm_context *dapm, |
137 | enum snd_soc_bias_level level) | |
452c5eaa | 138 | { |
452c5eaa MB |
139 | int ret = 0; |
140 | ||
f83fba8b MB |
141 | switch (level) { |
142 | case SND_SOC_BIAS_ON: | |
ce6120cc | 143 | dev_dbg(dapm->dev, "Setting full bias\n"); |
f83fba8b MB |
144 | break; |
145 | case SND_SOC_BIAS_PREPARE: | |
ce6120cc | 146 | dev_dbg(dapm->dev, "Setting bias prepare\n"); |
f83fba8b MB |
147 | break; |
148 | case SND_SOC_BIAS_STANDBY: | |
ce6120cc | 149 | dev_dbg(dapm->dev, "Setting standby bias\n"); |
f83fba8b MB |
150 | break; |
151 | case SND_SOC_BIAS_OFF: | |
ce6120cc | 152 | dev_dbg(dapm->dev, "Setting bias off\n"); |
f83fba8b MB |
153 | break; |
154 | default: | |
ce6120cc | 155 | dev_err(dapm->dev, "Setting invalid bias %d\n", level); |
f83fba8b MB |
156 | return -EINVAL; |
157 | } | |
158 | ||
84e90930 MB |
159 | trace_snd_soc_bias_level_start(card, level); |
160 | ||
f0fba2ad | 161 | if (card && card->set_bias_level) |
452c5eaa | 162 | ret = card->set_bias_level(card, level); |
474e09ca | 163 | if (ret == 0) { |
ce6120cc LG |
164 | if (dapm->codec && dapm->codec->driver->set_bias_level) |
165 | ret = dapm->codec->driver->set_bias_level(dapm->codec, level); | |
474e09ca | 166 | else |
ce6120cc | 167 | dapm->bias_level = level; |
474e09ca | 168 | } |
1badabd9 MB |
169 | if (ret == 0) { |
170 | if (card && card->set_bias_level_post) | |
171 | ret = card->set_bias_level_post(card, level); | |
172 | } | |
452c5eaa | 173 | |
84e90930 MB |
174 | trace_snd_soc_bias_level_done(card, level); |
175 | ||
452c5eaa MB |
176 | return ret; |
177 | } | |
178 | ||
2b97eabc RP |
179 | /* set up initial codec paths */ |
180 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
181 | struct snd_soc_dapm_path *p, int i) | |
182 | { | |
183 | switch (w->id) { | |
184 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
185 | case snd_soc_dapm_mixer: |
186 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 187 | int val; |
4eaa9819 JS |
188 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
189 | w->kcontrols[i].private_value; | |
815ecf8d JS |
190 | unsigned int reg = mc->reg; |
191 | unsigned int shift = mc->shift; | |
4eaa9819 | 192 | int max = mc->max; |
815ecf8d JS |
193 | unsigned int mask = (1 << fls(max)) - 1; |
194 | unsigned int invert = mc->invert; | |
2b97eabc RP |
195 | |
196 | val = snd_soc_read(w->codec, reg); | |
197 | val = (val >> shift) & mask; | |
198 | ||
199 | if ((invert && !val) || (!invert && val)) | |
200 | p->connect = 1; | |
201 | else | |
202 | p->connect = 0; | |
203 | } | |
204 | break; | |
205 | case snd_soc_dapm_mux: { | |
206 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; | |
207 | int val, item, bitmask; | |
208 | ||
f8ba0b7b | 209 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
210 | ; |
211 | val = snd_soc_read(w->codec, e->reg); | |
212 | item = (val >> e->shift_l) & (bitmask - 1); | |
213 | ||
214 | p->connect = 0; | |
f8ba0b7b | 215 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
216 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
217 | p->connect = 1; | |
218 | } | |
219 | } | |
220 | break; | |
24ff33ac DP |
221 | case snd_soc_dapm_virt_mux: { |
222 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; | |
223 | ||
224 | p->connect = 0; | |
225 | /* since a virtual mux has no backing registers to | |
226 | * decide which path to connect, it will try to match | |
227 | * with the first enumeration. This is to ensure | |
228 | * that the default mux choice (the first) will be | |
229 | * correctly powered up during initialization. | |
230 | */ | |
231 | if (!strcmp(p->name, e->texts[0])) | |
232 | p->connect = 1; | |
233 | } | |
234 | break; | |
2e72f8e3 | 235 | case snd_soc_dapm_value_mux: { |
74155556 | 236 | struct soc_enum *e = (struct soc_enum *) |
2e72f8e3 PU |
237 | w->kcontrols[i].private_value; |
238 | int val, item; | |
239 | ||
240 | val = snd_soc_read(w->codec, e->reg); | |
241 | val = (val >> e->shift_l) & e->mask; | |
242 | for (item = 0; item < e->max; item++) { | |
243 | if (val == e->values[item]) | |
244 | break; | |
245 | } | |
246 | ||
247 | p->connect = 0; | |
248 | for (i = 0; i < e->max; i++) { | |
249 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
250 | p->connect = 1; | |
251 | } | |
252 | } | |
253 | break; | |
2b97eabc RP |
254 | /* does not effect routing - always connected */ |
255 | case snd_soc_dapm_pga: | |
d88429a6 | 256 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
257 | case snd_soc_dapm_output: |
258 | case snd_soc_dapm_adc: | |
259 | case snd_soc_dapm_input: | |
260 | case snd_soc_dapm_dac: | |
261 | case snd_soc_dapm_micbias: | |
262 | case snd_soc_dapm_vmid: | |
246d0a17 | 263 | case snd_soc_dapm_supply: |
010ff262 MB |
264 | case snd_soc_dapm_aif_in: |
265 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
266 | p->connect = 1; |
267 | break; | |
268 | /* does effect routing - dynamically connected */ | |
269 | case snd_soc_dapm_hp: | |
270 | case snd_soc_dapm_mic: | |
271 | case snd_soc_dapm_spk: | |
272 | case snd_soc_dapm_line: | |
273 | case snd_soc_dapm_pre: | |
274 | case snd_soc_dapm_post: | |
275 | p->connect = 0; | |
276 | break; | |
277 | } | |
278 | } | |
279 | ||
74b8f955 | 280 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 281 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
282 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
283 | struct snd_soc_dapm_path *path, const char *control_name, | |
284 | const struct snd_kcontrol_new *kcontrol) | |
285 | { | |
286 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
287 | int i; | |
288 | ||
f8ba0b7b | 289 | for (i = 0; i < e->max; i++) { |
2b97eabc | 290 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 291 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
292 | list_add(&path->list_sink, &dest->sources); |
293 | list_add(&path->list_source, &src->sinks); | |
294 | path->name = (char*)e->texts[i]; | |
295 | dapm_set_path_status(dest, path, 0); | |
296 | return 0; | |
297 | } | |
298 | } | |
299 | ||
300 | return -ENODEV; | |
301 | } | |
302 | ||
74b8f955 | 303 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 304 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
305 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
306 | struct snd_soc_dapm_path *path, const char *control_name) | |
307 | { | |
308 | int i; | |
309 | ||
310 | /* search for mixer kcontrol */ | |
311 | for (i = 0; i < dest->num_kcontrols; i++) { | |
312 | if (!strcmp(control_name, dest->kcontrols[i].name)) { | |
8ddab3f5 | 313 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
314 | list_add(&path->list_sink, &dest->sources); |
315 | list_add(&path->list_source, &src->sinks); | |
316 | path->name = dest->kcontrols[i].name; | |
317 | dapm_set_path_status(dest, path, i); | |
318 | return 0; | |
319 | } | |
320 | } | |
321 | return -ENODEV; | |
322 | } | |
323 | ||
324 | /* update dapm codec register bits */ | |
325 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) | |
326 | { | |
327 | int change, power; | |
46f5822f | 328 | unsigned int old, new; |
2b97eabc | 329 | struct snd_soc_codec *codec = widget->codec; |
ce6120cc | 330 | struct snd_soc_dapm_context *dapm = widget->dapm; |
3a45b867 | 331 | struct snd_soc_card *card = dapm->card; |
2b97eabc RP |
332 | |
333 | /* check for valid widgets */ | |
334 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || | |
335 | widget->id == snd_soc_dapm_output || | |
336 | widget->id == snd_soc_dapm_hp || | |
337 | widget->id == snd_soc_dapm_mic || | |
338 | widget->id == snd_soc_dapm_line || | |
339 | widget->id == snd_soc_dapm_spk) | |
340 | return 0; | |
341 | ||
342 | power = widget->power; | |
343 | if (widget->invert) | |
344 | power = (power ? 0:1); | |
345 | ||
346 | old = snd_soc_read(codec, widget->reg); | |
347 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); | |
348 | ||
349 | change = old != new; | |
350 | if (change) { | |
fd8d3bc0 JN |
351 | pop_dbg(dapm->dev, card->pop_time, |
352 | "pop test %s : %s in %d ms\n", | |
12ef193d | 353 | widget->name, widget->power ? "on" : "off", |
3a45b867 JN |
354 | card->pop_time); |
355 | pop_wait(card->pop_time); | |
69224719 | 356 | snd_soc_write(codec, widget->reg, new); |
2b97eabc | 357 | } |
f7d41ae8 JN |
358 | dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg, |
359 | old, new, change); | |
2b97eabc RP |
360 | return change; |
361 | } | |
362 | ||
2b97eabc | 363 | /* create new dapm mixer control */ |
ce6120cc | 364 | static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
365 | struct snd_soc_dapm_widget *w) |
366 | { | |
367 | int i, ret = 0; | |
219b93f5 | 368 | size_t name_len; |
2b97eabc | 369 | struct snd_soc_dapm_path *path; |
ce6120cc | 370 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
371 | |
372 | /* add kcontrol */ | |
373 | for (i = 0; i < w->num_kcontrols; i++) { | |
374 | ||
375 | /* match name */ | |
376 | list_for_each_entry(path, &w->sources, list_sink) { | |
377 | ||
378 | /* mixer/mux paths name must match control name */ | |
379 | if (path->name != (char*)w->kcontrols[i].name) | |
380 | continue; | |
381 | ||
ca9c1aae IM |
382 | /* add dapm control with long name. |
383 | * for dapm_mixer this is the concatenation of the | |
384 | * mixer and kcontrol name. | |
385 | * for dapm_mixer_named_ctl this is simply the | |
386 | * kcontrol name. | |
387 | */ | |
388 | name_len = strlen(w->kcontrols[i].name) + 1; | |
07495f3e | 389 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
390 | name_len += 1 + strlen(w->name); |
391 | ||
219b93f5 | 392 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 393 | |
2b97eabc RP |
394 | if (path->long_name == NULL) |
395 | return -ENOMEM; | |
396 | ||
ca9c1aae | 397 | switch (w->id) { |
ca9c1aae IM |
398 | default: |
399 | snprintf(path->long_name, name_len, "%s %s", | |
400 | w->name, w->kcontrols[i].name); | |
07495f3e | 401 | break; |
ca9c1aae IM |
402 | case snd_soc_dapm_mixer_named_ctl: |
403 | snprintf(path->long_name, name_len, "%s", | |
404 | w->kcontrols[i].name); | |
07495f3e | 405 | break; |
ca9c1aae IM |
406 | } |
407 | ||
219b93f5 MB |
408 | path->long_name[name_len - 1] = '\0'; |
409 | ||
2b97eabc RP |
410 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
411 | path->long_name); | |
ce6120cc | 412 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 413 | if (ret < 0) { |
f7d41ae8 JN |
414 | dev_err(dapm->dev, |
415 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
416 | path->long_name, ret); | |
2b97eabc RP |
417 | kfree(path->long_name); |
418 | path->long_name = NULL; | |
419 | return ret; | |
420 | } | |
421 | } | |
422 | } | |
423 | return ret; | |
424 | } | |
425 | ||
426 | /* create new dapm mux control */ | |
ce6120cc | 427 | static int dapm_new_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
428 | struct snd_soc_dapm_widget *w) |
429 | { | |
430 | struct snd_soc_dapm_path *path = NULL; | |
431 | struct snd_kcontrol *kcontrol; | |
ce6120cc | 432 | struct snd_card *card = dapm->codec->card->snd_card; |
2b97eabc RP |
433 | int ret = 0; |
434 | ||
435 | if (!w->num_kcontrols) { | |
f7d41ae8 | 436 | dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name); |
2b97eabc RP |
437 | return -EINVAL; |
438 | } | |
439 | ||
440 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); | |
ce6120cc LG |
441 | ret = snd_ctl_add(card, kcontrol); |
442 | ||
2b97eabc RP |
443 | if (ret < 0) |
444 | goto err; | |
445 | ||
446 | list_for_each_entry(path, &w->sources, list_sink) | |
447 | path->kcontrol = kcontrol; | |
448 | ||
449 | return ret; | |
450 | ||
451 | err: | |
f7d41ae8 | 452 | dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name); |
2b97eabc RP |
453 | return ret; |
454 | } | |
455 | ||
456 | /* create new dapm volume control */ | |
ce6120cc | 457 | static int dapm_new_pga(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
458 | struct snd_soc_dapm_widget *w) |
459 | { | |
a6c65736 | 460 | if (w->num_kcontrols) |
f7d41ae8 JN |
461 | dev_err(w->dapm->dev, |
462 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 463 | |
a6c65736 | 464 | return 0; |
2b97eabc RP |
465 | } |
466 | ||
467 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 468 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
469 | { |
470 | struct snd_soc_dapm_path *p; | |
471 | ||
8ddab3f5 | 472 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
473 | p->walked = 0; |
474 | } | |
475 | ||
9949788b MB |
476 | /* We implement power down on suspend by checking the power state of |
477 | * the ALSA card - when we are suspending the ALSA state for the card | |
478 | * is set to D3. | |
479 | */ | |
480 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
481 | { | |
ce6120cc | 482 | int level = snd_power_get_state(widget->dapm->codec->card->snd_card); |
9949788b | 483 | |
f0fba2ad | 484 | switch (level) { |
9949788b MB |
485 | case SNDRV_CTL_POWER_D3hot: |
486 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 487 | if (widget->ignore_suspend) |
f7d41ae8 JN |
488 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
489 | widget->name); | |
1547aba9 | 490 | return widget->ignore_suspend; |
9949788b MB |
491 | default: |
492 | return 1; | |
493 | } | |
494 | } | |
495 | ||
2b97eabc RP |
496 | /* |
497 | * Recursively check for a completed path to an active or physically connected | |
498 | * output widget. Returns number of complete paths. | |
499 | */ | |
500 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
501 | { | |
502 | struct snd_soc_dapm_path *path; | |
503 | int con = 0; | |
504 | ||
246d0a17 MB |
505 | if (widget->id == snd_soc_dapm_supply) |
506 | return 0; | |
507 | ||
010ff262 MB |
508 | switch (widget->id) { |
509 | case snd_soc_dapm_adc: | |
510 | case snd_soc_dapm_aif_out: | |
511 | if (widget->active) | |
9949788b | 512 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
513 | default: |
514 | break; | |
515 | } | |
2b97eabc RP |
516 | |
517 | if (widget->connected) { | |
518 | /* connected pin ? */ | |
519 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 520 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
521 | |
522 | /* connected jack or spk ? */ | |
523 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 524 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 525 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
526 | } |
527 | ||
528 | list_for_each_entry(path, &widget->sinks, list_source) { | |
529 | if (path->walked) | |
530 | continue; | |
531 | ||
532 | if (path->sink && path->connect) { | |
533 | path->walked = 1; | |
534 | con += is_connected_output_ep(path->sink); | |
535 | } | |
536 | } | |
537 | ||
538 | return con; | |
539 | } | |
540 | ||
541 | /* | |
542 | * Recursively check for a completed path to an active or physically connected | |
543 | * input widget. Returns number of complete paths. | |
544 | */ | |
545 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
546 | { | |
547 | struct snd_soc_dapm_path *path; | |
548 | int con = 0; | |
549 | ||
246d0a17 MB |
550 | if (widget->id == snd_soc_dapm_supply) |
551 | return 0; | |
552 | ||
2b97eabc | 553 | /* active stream ? */ |
010ff262 MB |
554 | switch (widget->id) { |
555 | case snd_soc_dapm_dac: | |
556 | case snd_soc_dapm_aif_in: | |
557 | if (widget->active) | |
9949788b | 558 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
559 | default: |
560 | break; | |
561 | } | |
2b97eabc RP |
562 | |
563 | if (widget->connected) { | |
564 | /* connected pin ? */ | |
565 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 566 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
567 | |
568 | /* connected VMID/Bias for lower pops */ | |
569 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 570 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
571 | |
572 | /* connected jack ? */ | |
eaeae5d9 PU |
573 | if (widget->id == snd_soc_dapm_mic || |
574 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 575 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
576 | } |
577 | ||
578 | list_for_each_entry(path, &widget->sources, list_sink) { | |
579 | if (path->walked) | |
580 | continue; | |
581 | ||
582 | if (path->source && path->connect) { | |
583 | path->walked = 1; | |
584 | con += is_connected_input_ep(path->source); | |
585 | } | |
586 | } | |
587 | ||
588 | return con; | |
589 | } | |
590 | ||
e2be2ccf JN |
591 | /* |
592 | * Handler for generic register modifier widget. | |
593 | */ | |
594 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
595 | struct snd_kcontrol *kcontrol, int event) | |
596 | { | |
597 | unsigned int val; | |
598 | ||
599 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
600 | val = w->on_val; | |
601 | else | |
602 | val = w->off_val; | |
603 | ||
604 | snd_soc_update_bits(w->codec, -(w->reg + 1), | |
605 | w->mask << w->shift, val << w->shift); | |
606 | ||
607 | return 0; | |
608 | } | |
11589418 | 609 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 610 | |
025756ec MB |
611 | /* Standard power change method, used to apply power changes to most |
612 | * widgets. | |
613 | */ | |
614 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) | |
615 | { | |
616 | int ret; | |
617 | ||
618 | /* call any power change event handlers */ | |
619 | if (w->event) | |
f7d41ae8 | 620 | dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n", |
025756ec MB |
621 | w->power ? "on" : "off", |
622 | w->name, w->event_flags); | |
623 | ||
624 | /* power up pre event */ | |
625 | if (w->power && w->event && | |
626 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { | |
627 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); | |
628 | if (ret < 0) | |
629 | return ret; | |
630 | } | |
631 | ||
632 | /* power down pre event */ | |
633 | if (!w->power && w->event && | |
634 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { | |
635 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); | |
636 | if (ret < 0) | |
637 | return ret; | |
638 | } | |
639 | ||
025756ec MB |
640 | dapm_update_bits(w); |
641 | ||
025756ec MB |
642 | /* power up post event */ |
643 | if (w->power && w->event && | |
644 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { | |
645 | ret = w->event(w, | |
646 | NULL, SND_SOC_DAPM_POST_PMU); | |
647 | if (ret < 0) | |
648 | return ret; | |
649 | } | |
650 | ||
651 | /* power down post event */ | |
652 | if (!w->power && w->event && | |
653 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { | |
654 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); | |
655 | if (ret < 0) | |
656 | return ret; | |
657 | } | |
658 | ||
659 | return 0; | |
660 | } | |
661 | ||
cd0f2d47 MB |
662 | /* Generic check to see if a widget should be powered. |
663 | */ | |
664 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
665 | { | |
666 | int in, out; | |
667 | ||
668 | in = is_connected_input_ep(w); | |
ce6120cc | 669 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 670 | out = is_connected_output_ep(w); |
ce6120cc | 671 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
672 | return out != 0 && in != 0; |
673 | } | |
674 | ||
6ea31b9f MB |
675 | /* Check to see if an ADC has power */ |
676 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
677 | { | |
678 | int in; | |
679 | ||
680 | if (w->active) { | |
681 | in = is_connected_input_ep(w); | |
ce6120cc | 682 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
683 | return in != 0; |
684 | } else { | |
685 | return dapm_generic_check_power(w); | |
686 | } | |
687 | } | |
688 | ||
689 | /* Check to see if a DAC has power */ | |
690 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
691 | { | |
692 | int out; | |
693 | ||
694 | if (w->active) { | |
695 | out = is_connected_output_ep(w); | |
ce6120cc | 696 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
697 | return out != 0; |
698 | } else { | |
699 | return dapm_generic_check_power(w); | |
700 | } | |
701 | } | |
702 | ||
246d0a17 MB |
703 | /* Check to see if a power supply is needed */ |
704 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
705 | { | |
706 | struct snd_soc_dapm_path *path; | |
707 | int power = 0; | |
708 | ||
709 | /* Check if one of our outputs is connected */ | |
710 | list_for_each_entry(path, &w->sinks, list_source) { | |
215edda3 MB |
711 | if (path->connected && |
712 | !path->connected(path->source, path->sink)) | |
713 | continue; | |
714 | ||
246d0a17 MB |
715 | if (path->sink && path->sink->power_check && |
716 | path->sink->power_check(path->sink)) { | |
717 | power = 1; | |
718 | break; | |
719 | } | |
720 | } | |
721 | ||
ce6120cc | 722 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
723 | |
724 | return power; | |
725 | } | |
726 | ||
38357ab2 MB |
727 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
728 | struct snd_soc_dapm_widget *b, | |
729 | int sort[]) | |
42aa3418 | 730 | { |
38357ab2 MB |
731 | if (sort[a->id] != sort[b->id]) |
732 | return sort[a->id] - sort[b->id]; | |
b22ead2a MB |
733 | if (a->reg != b->reg) |
734 | return a->reg - b->reg; | |
84dab567 MB |
735 | if (a->dapm != b->dapm) |
736 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 737 | |
38357ab2 MB |
738 | return 0; |
739 | } | |
42aa3418 | 740 | |
38357ab2 MB |
741 | /* Insert a widget in order into a DAPM power sequence. */ |
742 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
743 | struct list_head *list, | |
744 | int sort[]) | |
745 | { | |
746 | struct snd_soc_dapm_widget *w; | |
747 | ||
748 | list_for_each_entry(w, list, power_list) | |
749 | if (dapm_seq_compare(new_widget, w, sort) < 0) { | |
750 | list_add_tail(&new_widget->power_list, &w->power_list); | |
751 | return; | |
752 | } | |
753 | ||
754 | list_add_tail(&new_widget->power_list, list); | |
755 | } | |
756 | ||
68f89ad8 MB |
757 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
758 | struct snd_soc_dapm_widget *w, int event) | |
759 | { | |
760 | struct snd_soc_card *card = dapm->card; | |
761 | const char *ev_name; | |
762 | int power, ret; | |
763 | ||
764 | switch (event) { | |
765 | case SND_SOC_DAPM_PRE_PMU: | |
766 | ev_name = "PRE_PMU"; | |
767 | power = 1; | |
768 | break; | |
769 | case SND_SOC_DAPM_POST_PMU: | |
770 | ev_name = "POST_PMU"; | |
771 | power = 1; | |
772 | break; | |
773 | case SND_SOC_DAPM_PRE_PMD: | |
774 | ev_name = "PRE_PMD"; | |
775 | power = 0; | |
776 | break; | |
777 | case SND_SOC_DAPM_POST_PMD: | |
778 | ev_name = "POST_PMD"; | |
779 | power = 0; | |
780 | break; | |
781 | default: | |
782 | BUG(); | |
783 | return; | |
784 | } | |
785 | ||
786 | if (w->power != power) | |
787 | return; | |
788 | ||
789 | if (w->event && (w->event_flags & event)) { | |
790 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
791 | w->name, ev_name); | |
84e90930 | 792 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 793 | ret = w->event(w, NULL, event); |
84e90930 | 794 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
795 | if (ret < 0) |
796 | pr_err("%s: %s event failed: %d\n", | |
797 | ev_name, w->name, ret); | |
798 | } | |
799 | } | |
800 | ||
b22ead2a | 801 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 802 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 803 | struct list_head *pending) |
163cac06 | 804 | { |
3a45b867 | 805 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
806 | struct snd_soc_dapm_widget *w; |
807 | int reg, power; | |
b22ead2a MB |
808 | unsigned int value = 0; |
809 | unsigned int mask = 0; | |
810 | unsigned int cur_mask; | |
811 | ||
812 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
813 | power_list)->reg; | |
814 | ||
815 | list_for_each_entry(w, pending, power_list) { | |
816 | cur_mask = 1 << w->shift; | |
817 | BUG_ON(reg != w->reg); | |
818 | ||
819 | if (w->invert) | |
820 | power = !w->power; | |
821 | else | |
822 | power = w->power; | |
823 | ||
824 | mask |= cur_mask; | |
825 | if (power) | |
826 | value |= cur_mask; | |
827 | ||
fd8d3bc0 | 828 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
829 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
830 | w->name, reg, value, mask); | |
81628103 | 831 | |
68f89ad8 MB |
832 | /* Check for events */ |
833 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
834 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
835 | } |
836 | ||
837 | if (reg >= 0) { | |
fd8d3bc0 | 838 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 839 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
840 | value, mask, reg, card->pop_time); |
841 | pop_wait(card->pop_time); | |
ce6120cc | 842 | snd_soc_update_bits(dapm->codec, reg, mask, value); |
b22ead2a MB |
843 | } |
844 | ||
81628103 | 845 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
846 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
847 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 848 | } |
b22ead2a | 849 | } |
42aa3418 | 850 | |
b22ead2a MB |
851 | /* Apply a DAPM power sequence. |
852 | * | |
853 | * We walk over a pre-sorted list of widgets to apply power to. In | |
854 | * order to minimise the number of writes to the device required | |
855 | * multiple widgets will be updated in a single write where possible. | |
856 | * Currently anything that requires more than a single write is not | |
857 | * handled. | |
858 | */ | |
ce6120cc LG |
859 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
860 | struct list_head *list, int event, int sort[]) | |
b22ead2a MB |
861 | { |
862 | struct snd_soc_dapm_widget *w, *n; | |
863 | LIST_HEAD(pending); | |
864 | int cur_sort = -1; | |
865 | int cur_reg = SND_SOC_NOPM; | |
7be31be8 | 866 | struct snd_soc_dapm_context *cur_dapm = NULL; |
163cac06 MB |
867 | int ret; |
868 | ||
b22ead2a MB |
869 | list_for_each_entry_safe(w, n, list, power_list) { |
870 | ret = 0; | |
871 | ||
872 | /* Do we need to apply any queued changes? */ | |
7be31be8 JN |
873 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
874 | w->dapm != cur_dapm) { | |
b22ead2a | 875 | if (!list_empty(&pending)) |
7be31be8 | 876 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a MB |
877 | |
878 | INIT_LIST_HEAD(&pending); | |
879 | cur_sort = -1; | |
880 | cur_reg = SND_SOC_NOPM; | |
7be31be8 | 881 | cur_dapm = NULL; |
b22ead2a MB |
882 | } |
883 | ||
163cac06 MB |
884 | switch (w->id) { |
885 | case snd_soc_dapm_pre: | |
886 | if (!w->event) | |
b22ead2a MB |
887 | list_for_each_entry_safe_continue(w, n, list, |
888 | power_list); | |
163cac06 | 889 | |
b22ead2a | 890 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
891 | ret = w->event(w, |
892 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 893 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
894 | ret = w->event(w, |
895 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
896 | break; |
897 | ||
898 | case snd_soc_dapm_post: | |
899 | if (!w->event) | |
b22ead2a MB |
900 | list_for_each_entry_safe_continue(w, n, list, |
901 | power_list); | |
163cac06 | 902 | |
b22ead2a | 903 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
904 | ret = w->event(w, |
905 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 906 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
907 | ret = w->event(w, |
908 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
909 | break; |
910 | ||
b22ead2a MB |
911 | case snd_soc_dapm_input: |
912 | case snd_soc_dapm_output: | |
913 | case snd_soc_dapm_hp: | |
914 | case snd_soc_dapm_mic: | |
915 | case snd_soc_dapm_line: | |
916 | case snd_soc_dapm_spk: | |
917 | /* No register support currently */ | |
163cac06 | 918 | ret = dapm_generic_apply_power(w); |
163cac06 | 919 | break; |
b22ead2a MB |
920 | |
921 | default: | |
81628103 MB |
922 | /* Queue it up for application */ |
923 | cur_sort = sort[w->id]; | |
924 | cur_reg = w->reg; | |
7be31be8 | 925 | cur_dapm = w->dapm; |
81628103 MB |
926 | list_move(&w->power_list, &pending); |
927 | break; | |
163cac06 | 928 | } |
b22ead2a MB |
929 | |
930 | if (ret < 0) | |
f7d41ae8 JN |
931 | dev_err(w->dapm->dev, |
932 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 933 | } |
b22ead2a MB |
934 | |
935 | if (!list_empty(&pending)) | |
ce6120cc | 936 | dapm_seq_run_coalesced(dapm, &pending); |
42aa3418 MB |
937 | } |
938 | ||
97404f2e MB |
939 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
940 | { | |
941 | struct snd_soc_dapm_update *update = dapm->update; | |
942 | struct snd_soc_dapm_widget *w; | |
943 | int ret; | |
944 | ||
945 | if (!update) | |
946 | return; | |
947 | ||
948 | w = update->widget; | |
949 | ||
950 | if (w->event && | |
951 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
952 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
953 | if (ret != 0) | |
954 | pr_err("%s DAPM pre-event failed: %d\n", | |
955 | w->name, ret); | |
956 | } | |
957 | ||
958 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, | |
959 | update->val); | |
960 | if (ret < 0) | |
961 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
962 | ||
963 | if (w->event && | |
964 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
965 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
966 | if (ret != 0) | |
967 | pr_err("%s DAPM post-event failed: %d\n", | |
968 | w->name, ret); | |
969 | } | |
970 | } | |
971 | ||
972 | ||
973 | ||
2b97eabc RP |
974 | /* |
975 | * Scan each dapm widget for complete audio path. | |
976 | * A complete path is a route that has valid endpoints i.e.:- | |
977 | * | |
978 | * o DAC to output pin. | |
979 | * o Input Pin to ADC. | |
980 | * o Input pin to Output pin (bypass, sidetone) | |
981 | * o DAC to ADC (loopback). | |
982 | */ | |
ce6120cc | 983 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 984 | { |
ce6120cc | 985 | struct snd_soc_card *card = dapm->codec->card; |
2b97eabc | 986 | struct snd_soc_dapm_widget *w; |
7be31be8 | 987 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
988 | LIST_HEAD(up_list); |
989 | LIST_HEAD(down_list); | |
6d3ddc81 | 990 | int ret = 0; |
38357ab2 | 991 | int power; |
6d3ddc81 | 992 | |
84e90930 MB |
993 | trace_snd_soc_dapm_start(card); |
994 | ||
7be31be8 JN |
995 | list_for_each_entry(d, &card->dapm_list, list) |
996 | if (d->n_widgets) | |
997 | d->dev_power = 0; | |
998 | ||
6d3ddc81 MB |
999 | /* Check which widgets we need to power and store them in |
1000 | * lists indicating if they should be powered up or down. | |
1001 | */ | |
97c866de | 1002 | list_for_each_entry(w, &card->widgets, list) { |
6d3ddc81 MB |
1003 | switch (w->id) { |
1004 | case snd_soc_dapm_pre: | |
291f3bbc | 1005 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
1006 | break; |
1007 | case snd_soc_dapm_post: | |
291f3bbc | 1008 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 MB |
1009 | break; |
1010 | ||
1011 | default: | |
1012 | if (!w->power_check) | |
1013 | continue; | |
1014 | ||
9949788b | 1015 | if (!w->force) |
50b6bce5 | 1016 | power = w->power_check(w); |
9949788b MB |
1017 | else |
1018 | power = 1; | |
1019 | if (power) | |
7be31be8 | 1020 | w->dapm->dev_power = 1; |
452c5eaa | 1021 | |
6d3ddc81 MB |
1022 | if (w->power == power) |
1023 | continue; | |
1024 | ||
84e90930 MB |
1025 | trace_snd_soc_dapm_widget_power(w, power); |
1026 | ||
6d3ddc81 | 1027 | if (power) |
291f3bbc | 1028 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
6d3ddc81 | 1029 | else |
291f3bbc | 1030 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
6d3ddc81 MB |
1031 | |
1032 | w->power = power; | |
1033 | break; | |
1034 | } | |
2b97eabc RP |
1035 | } |
1036 | ||
b14b76a5 MB |
1037 | /* If there are no DAPM widgets then try to figure out power from the |
1038 | * event type. | |
1039 | */ | |
97c866de | 1040 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1041 | switch (event) { |
1042 | case SND_SOC_DAPM_STREAM_START: | |
1043 | case SND_SOC_DAPM_STREAM_RESUME: | |
7be31be8 | 1044 | dapm->dev_power = 1; |
b14b76a5 | 1045 | break; |
862af8ad | 1046 | case SND_SOC_DAPM_STREAM_STOP: |
7be31be8 | 1047 | dapm->dev_power = !!dapm->codec->active; |
862af8ad | 1048 | break; |
50b6bce5 | 1049 | case SND_SOC_DAPM_STREAM_SUSPEND: |
7be31be8 | 1050 | dapm->dev_power = 0; |
50b6bce5 | 1051 | break; |
b14b76a5 | 1052 | case SND_SOC_DAPM_STREAM_NOP: |
ce6120cc | 1053 | switch (dapm->bias_level) { |
a96ca338 MB |
1054 | case SND_SOC_BIAS_STANDBY: |
1055 | case SND_SOC_BIAS_OFF: | |
7be31be8 | 1056 | dapm->dev_power = 0; |
a96ca338 MB |
1057 | break; |
1058 | default: | |
7be31be8 | 1059 | dapm->dev_power = 1; |
a96ca338 MB |
1060 | break; |
1061 | } | |
50b6bce5 | 1062 | break; |
b14b76a5 MB |
1063 | default: |
1064 | break; | |
1065 | } | |
1066 | } | |
1067 | ||
7be31be8 JN |
1068 | list_for_each_entry(d, &dapm->card->dapm_list, list) { |
1069 | if (d->dev_power && d->bias_level == SND_SOC_BIAS_OFF) { | |
1070 | ret = snd_soc_dapm_set_bias_level(card, d, | |
1071 | SND_SOC_BIAS_STANDBY); | |
1072 | if (ret != 0) | |
1073 | dev_err(d->dev, | |
1074 | "Failed to turn on bias: %d\n", ret); | |
1075 | } | |
a96ca338 | 1076 | |
7be31be8 JN |
1077 | /* If we're changing to all on or all off then prepare */ |
1078 | if ((d->dev_power && d->bias_level == SND_SOC_BIAS_STANDBY) || | |
1079 | (!d->dev_power && d->bias_level == SND_SOC_BIAS_ON)) { | |
1080 | ret = snd_soc_dapm_set_bias_level(card, d, | |
1081 | SND_SOC_BIAS_PREPARE); | |
1082 | if (ret != 0) | |
1083 | dev_err(d->dev, | |
1084 | "Failed to prepare bias: %d\n", ret); | |
1085 | } | |
452c5eaa MB |
1086 | } |
1087 | ||
6d3ddc81 | 1088 | /* Power down widgets first; try to avoid amplifying pops. */ |
ce6120cc | 1089 | dapm_seq_run(dapm, &down_list, event, dapm_down_seq); |
2b97eabc | 1090 | |
97404f2e MB |
1091 | dapm_widget_update(dapm); |
1092 | ||
6d3ddc81 | 1093 | /* Now power up. */ |
ce6120cc | 1094 | dapm_seq_run(dapm, &up_list, event, dapm_up_seq); |
2b97eabc | 1095 | |
7be31be8 JN |
1096 | list_for_each_entry(d, &dapm->card->dapm_list, list) { |
1097 | /* If we just powered the last thing off drop to standby bias */ | |
1098 | if (d->bias_level == SND_SOC_BIAS_PREPARE && !d->dev_power) { | |
1099 | ret = snd_soc_dapm_set_bias_level(card, d, | |
1100 | SND_SOC_BIAS_STANDBY); | |
1101 | if (ret != 0) | |
1102 | dev_err(d->dev, | |
1103 | "Failed to apply standby bias: %d\n", | |
1104 | ret); | |
1105 | } | |
452c5eaa | 1106 | |
7be31be8 JN |
1107 | /* If we're in standby and can support bias off then do that */ |
1108 | if (d->bias_level == SND_SOC_BIAS_STANDBY && | |
1109 | d->idle_bias_off) { | |
1110 | ret = snd_soc_dapm_set_bias_level(card, d, | |
1111 | SND_SOC_BIAS_OFF); | |
1112 | if (ret != 0) | |
1113 | dev_err(d->dev, | |
1114 | "Failed to turn off bias: %d\n", ret); | |
1115 | } | |
a96ca338 | 1116 | |
7be31be8 JN |
1117 | /* If we just powered up then move to active bias */ |
1118 | if (d->bias_level == SND_SOC_BIAS_PREPARE && d->dev_power) { | |
1119 | ret = snd_soc_dapm_set_bias_level(card, d, | |
1120 | SND_SOC_BIAS_ON); | |
1121 | if (ret != 0) | |
1122 | dev_err(d->dev, | |
1123 | "Failed to apply active bias: %d\n", | |
1124 | ret); | |
1125 | } | |
452c5eaa MB |
1126 | } |
1127 | ||
fd8d3bc0 JN |
1128 | pop_dbg(dapm->dev, card->pop_time, |
1129 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1130 | pop_wait(card->pop_time); |
cb507e7e | 1131 | |
84e90930 MB |
1132 | trace_snd_soc_dapm_done(card); |
1133 | ||
42aa3418 | 1134 | return 0; |
2b97eabc RP |
1135 | } |
1136 | ||
79fb9387 MB |
1137 | #ifdef CONFIG_DEBUG_FS |
1138 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1139 | { | |
1140 | file->private_data = inode->i_private; | |
1141 | return 0; | |
1142 | } | |
1143 | ||
1144 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1145 | char __user *user_buf, | |
1146 | size_t count, loff_t *ppos) | |
1147 | { | |
1148 | struct snd_soc_dapm_widget *w = file->private_data; | |
1149 | char *buf; | |
1150 | int in, out; | |
1151 | ssize_t ret; | |
1152 | struct snd_soc_dapm_path *p = NULL; | |
1153 | ||
1154 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1155 | if (!buf) | |
1156 | return -ENOMEM; | |
1157 | ||
1158 | in = is_connected_input_ep(w); | |
ce6120cc | 1159 | dapm_clear_walk(w->dapm); |
79fb9387 | 1160 | out = is_connected_output_ep(w); |
ce6120cc | 1161 | dapm_clear_walk(w->dapm); |
79fb9387 | 1162 | |
d033c36a | 1163 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1164 | w->name, w->power ? "On" : "Off", in, out); |
1165 | ||
d033c36a MB |
1166 | if (w->reg >= 0) |
1167 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1168 | " - R%d(0x%x) bit %d", | |
1169 | w->reg, w->reg, w->shift); | |
1170 | ||
1171 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1172 | ||
3eef08ba MB |
1173 | if (w->sname) |
1174 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1175 | w->sname, | |
1176 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1177 | |
1178 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1179 | if (p->connected && !p->connected(w, p->sink)) |
1180 | continue; | |
1181 | ||
79fb9387 MB |
1182 | if (p->connect) |
1183 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1184 | " in %s %s\n", | |
1185 | p->name ? p->name : "static", | |
1186 | p->source->name); | |
1187 | } | |
1188 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1189 | if (p->connected && !p->connected(w, p->sink)) |
1190 | continue; | |
1191 | ||
79fb9387 MB |
1192 | if (p->connect) |
1193 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1194 | " out %s %s\n", | |
1195 | p->name ? p->name : "static", | |
1196 | p->sink->name); | |
1197 | } | |
1198 | ||
1199 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1200 | ||
1201 | kfree(buf); | |
1202 | return ret; | |
1203 | } | |
1204 | ||
1205 | static const struct file_operations dapm_widget_power_fops = { | |
1206 | .open = dapm_widget_power_open_file, | |
1207 | .read = dapm_widget_power_read_file, | |
6038f373 | 1208 | .llseek = default_llseek, |
79fb9387 MB |
1209 | }; |
1210 | ||
ce6120cc | 1211 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1212 | { |
1213 | struct snd_soc_dapm_widget *w; | |
1214 | struct dentry *d; | |
1215 | ||
ce6120cc | 1216 | if (!dapm->debugfs_dapm) |
79fb9387 MB |
1217 | return; |
1218 | ||
97c866de JN |
1219 | list_for_each_entry(w, &dapm->card->widgets, list) { |
1220 | if (!w->name || w->dapm != dapm) | |
79fb9387 MB |
1221 | continue; |
1222 | ||
1223 | d = debugfs_create_file(w->name, 0444, | |
ce6120cc | 1224 | dapm->debugfs_dapm, w, |
79fb9387 MB |
1225 | &dapm_widget_power_fops); |
1226 | if (!d) | |
f7d41ae8 JN |
1227 | dev_warn(w->dapm->dev, |
1228 | "ASoC: Failed to create %s debugfs file\n", | |
1229 | w->name); | |
79fb9387 MB |
1230 | } |
1231 | } | |
1232 | #else | |
ce6120cc | 1233 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
79fb9387 MB |
1234 | { |
1235 | } | |
1236 | #endif | |
1237 | ||
2b97eabc | 1238 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1239 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1240 | struct snd_kcontrol *kcontrol, int change, |
1241 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1242 | { |
1243 | struct snd_soc_dapm_path *path; | |
1244 | int found = 0; | |
1245 | ||
eff317d0 | 1246 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1247 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1248 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1249 | return -ENODEV; |
1250 | ||
3a65577d | 1251 | if (!change) |
2b97eabc RP |
1252 | return 0; |
1253 | ||
1254 | /* find dapm widget path assoc with kcontrol */ | |
8ddab3f5 | 1255 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1256 | if (path->kcontrol != kcontrol) |
1257 | continue; | |
1258 | ||
cb01e2b9 | 1259 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1260 | continue; |
1261 | ||
1262 | found = 1; | |
1263 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1264 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1265 | path->connect = 1; /* new connection */ |
1266 | else | |
1267 | path->connect = 0; /* old connection must be powered down */ | |
1268 | } | |
1269 | ||
b91b8fa0 | 1270 | if (found) |
ce6120cc | 1271 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1272 | |
1273 | return 0; | |
1274 | } | |
2b97eabc | 1275 | |
1b075e3f | 1276 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1277 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1278 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1279 | { |
1280 | struct snd_soc_dapm_path *path; | |
1281 | int found = 0; | |
1282 | ||
1b075e3f | 1283 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1284 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1285 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1286 | return -ENODEV; |
1287 | ||
2b97eabc | 1288 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1289 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1290 | if (path->kcontrol != kcontrol) |
1291 | continue; | |
1292 | ||
1293 | /* found, now check type */ | |
1294 | found = 1; | |
283375ce | 1295 | path->connect = connect; |
2b97eabc RP |
1296 | break; |
1297 | } | |
1298 | ||
b91b8fa0 | 1299 | if (found) |
ce6120cc | 1300 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1301 | |
1302 | return 0; | |
1303 | } | |
2b97eabc RP |
1304 | |
1305 | /* show dapm widget status in sys fs */ | |
1306 | static ssize_t dapm_widget_show(struct device *dev, | |
1307 | struct device_attribute *attr, char *buf) | |
1308 | { | |
f0fba2ad LG |
1309 | struct snd_soc_pcm_runtime *rtd = |
1310 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1311 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1312 | struct snd_soc_dapm_widget *w; |
1313 | int count = 0; | |
1314 | char *state = "not set"; | |
1315 | ||
97c866de JN |
1316 | list_for_each_entry(w, &codec->card->widgets, list) { |
1317 | if (w->dapm != &codec->dapm) | |
1318 | continue; | |
2b97eabc RP |
1319 | |
1320 | /* only display widgets that burnm power */ | |
1321 | switch (w->id) { | |
1322 | case snd_soc_dapm_hp: | |
1323 | case snd_soc_dapm_mic: | |
1324 | case snd_soc_dapm_spk: | |
1325 | case snd_soc_dapm_line: | |
1326 | case snd_soc_dapm_micbias: | |
1327 | case snd_soc_dapm_dac: | |
1328 | case snd_soc_dapm_adc: | |
1329 | case snd_soc_dapm_pga: | |
d88429a6 | 1330 | case snd_soc_dapm_out_drv: |
2b97eabc | 1331 | case snd_soc_dapm_mixer: |
ca9c1aae | 1332 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1333 | case snd_soc_dapm_supply: |
2b97eabc RP |
1334 | if (w->name) |
1335 | count += sprintf(buf + count, "%s: %s\n", | |
1336 | w->name, w->power ? "On":"Off"); | |
1337 | break; | |
1338 | default: | |
1339 | break; | |
1340 | } | |
1341 | } | |
1342 | ||
ce6120cc | 1343 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1344 | case SND_SOC_BIAS_ON: |
1345 | state = "On"; | |
2b97eabc | 1346 | break; |
0be9898a MB |
1347 | case SND_SOC_BIAS_PREPARE: |
1348 | state = "Prepare"; | |
2b97eabc | 1349 | break; |
0be9898a MB |
1350 | case SND_SOC_BIAS_STANDBY: |
1351 | state = "Standby"; | |
2b97eabc | 1352 | break; |
0be9898a MB |
1353 | case SND_SOC_BIAS_OFF: |
1354 | state = "Off"; | |
2b97eabc RP |
1355 | break; |
1356 | } | |
1357 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1358 | ||
1359 | return count; | |
1360 | } | |
1361 | ||
1362 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1363 | ||
1364 | int snd_soc_dapm_sys_add(struct device *dev) | |
1365 | { | |
12ef193d | 1366 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1367 | } |
1368 | ||
1369 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1370 | { | |
aef90843 | 1371 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1372 | } |
1373 | ||
1374 | /* free all dapm widgets and resources */ | |
ce6120cc | 1375 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1376 | { |
1377 | struct snd_soc_dapm_widget *w, *next_w; | |
1378 | struct snd_soc_dapm_path *p, *next_p; | |
1379 | ||
97c866de JN |
1380 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1381 | if (w->dapm != dapm) | |
1382 | continue; | |
2b97eabc | 1383 | list_del(&w->list); |
8ddab3f5 JN |
1384 | /* |
1385 | * remove source and sink paths associated to this widget. | |
1386 | * While removing the path, remove reference to it from both | |
1387 | * source and sink widgets so that path is removed only once. | |
1388 | */ | |
1389 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1390 | list_del(&p->list_sink); | |
1391 | list_del(&p->list_source); | |
1392 | list_del(&p->list); | |
1393 | kfree(p->long_name); | |
1394 | kfree(p); | |
1395 | } | |
1396 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1397 | list_del(&p->list_sink); | |
1398 | list_del(&p->list_source); | |
1399 | list_del(&p->list); | |
1400 | kfree(p->long_name); | |
1401 | kfree(p); | |
1402 | } | |
ead9b919 | 1403 | kfree(w->name); |
2b97eabc RP |
1404 | kfree(w); |
1405 | } | |
2b97eabc RP |
1406 | } |
1407 | ||
ce6120cc | 1408 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, |
1649923d | 1409 | const char *pin, int status) |
a5302181 LG |
1410 | { |
1411 | struct snd_soc_dapm_widget *w; | |
1412 | ||
97c866de JN |
1413 | list_for_each_entry(w, &dapm->card->widgets, list) { |
1414 | if (w->dapm != dapm) | |
1415 | continue; | |
a5302181 | 1416 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
1417 | dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n", |
1418 | pin, status); | |
a5302181 | 1419 | w->connected = status; |
5b9e87cc MB |
1420 | /* Allow disabling of forced pins */ |
1421 | if (status == 0) | |
1422 | w->force = 0; | |
a5302181 LG |
1423 | return 0; |
1424 | } | |
1425 | } | |
1426 | ||
f7d41ae8 | 1427 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
a5302181 LG |
1428 | return -EINVAL; |
1429 | } | |
1430 | ||
2b97eabc | 1431 | /** |
a5302181 | 1432 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1433 | * @dapm: DAPM context |
2b97eabc RP |
1434 | * |
1435 | * Walks all dapm audio paths and powers widgets according to their | |
1436 | * stream or path usage. | |
1437 | * | |
1438 | * Returns 0 for success. | |
1439 | */ | |
ce6120cc | 1440 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1441 | { |
ce6120cc | 1442 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1443 | } |
a5302181 | 1444 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1445 | |
ce6120cc | 1446 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1447 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1448 | { |
1449 | struct snd_soc_dapm_path *path; | |
1450 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 1451 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 1452 | const char *sink; |
215edda3 | 1453 | const char *control = route->control; |
ead9b919 JN |
1454 | const char *source; |
1455 | char prefixed_sink[80]; | |
1456 | char prefixed_source[80]; | |
2b97eabc RP |
1457 | int ret = 0; |
1458 | ||
ead9b919 JN |
1459 | if (dapm->codec->name_prefix) { |
1460 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
1461 | dapm->codec->name_prefix, route->sink); | |
1462 | sink = prefixed_sink; | |
1463 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1464 | dapm->codec->name_prefix, route->source); | |
1465 | source = prefixed_source; | |
1466 | } else { | |
1467 | sink = route->sink; | |
1468 | source = route->source; | |
1469 | } | |
1470 | ||
97c866de JN |
1471 | /* |
1472 | * find src and dest widgets over all widgets but favor a widget from | |
1473 | * current DAPM context | |
1474 | */ | |
1475 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 1476 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
1477 | wtsink = w; |
1478 | if (w->dapm == dapm) | |
1479 | wsink = w; | |
2b97eabc RP |
1480 | continue; |
1481 | } | |
1482 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
1483 | wtsource = w; |
1484 | if (w->dapm == dapm) | |
1485 | wsource = w; | |
2b97eabc RP |
1486 | } |
1487 | } | |
97c866de JN |
1488 | /* use widget from another DAPM context if not found from this */ |
1489 | if (!wsink) | |
1490 | wsink = wtsink; | |
1491 | if (!wsource) | |
1492 | wsource = wtsource; | |
2b97eabc RP |
1493 | |
1494 | if (wsource == NULL || wsink == NULL) | |
1495 | return -ENODEV; | |
1496 | ||
1497 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1498 | if (!path) | |
1499 | return -ENOMEM; | |
1500 | ||
1501 | path->source = wsource; | |
1502 | path->sink = wsink; | |
215edda3 | 1503 | path->connected = route->connected; |
2b97eabc RP |
1504 | INIT_LIST_HEAD(&path->list); |
1505 | INIT_LIST_HEAD(&path->list_source); | |
1506 | INIT_LIST_HEAD(&path->list_sink); | |
1507 | ||
1508 | /* check for external widgets */ | |
1509 | if (wsink->id == snd_soc_dapm_input) { | |
1510 | if (wsource->id == snd_soc_dapm_micbias || | |
1511 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1512 | wsource->id == snd_soc_dapm_line || |
1513 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1514 | wsink->ext = 1; |
1515 | } | |
1516 | if (wsource->id == snd_soc_dapm_output) { | |
1517 | if (wsink->id == snd_soc_dapm_spk || | |
1518 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1519 | wsink->id == snd_soc_dapm_line || |
1520 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1521 | wsource->ext = 1; |
1522 | } | |
1523 | ||
1524 | /* connect static paths */ | |
1525 | if (control == NULL) { | |
8ddab3f5 | 1526 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1527 | list_add(&path->list_sink, &wsink->sources); |
1528 | list_add(&path->list_source, &wsource->sinks); | |
1529 | path->connect = 1; | |
1530 | return 0; | |
1531 | } | |
1532 | ||
1533 | /* connect dynamic paths */ | |
1534 | switch(wsink->id) { | |
1535 | case snd_soc_dapm_adc: | |
1536 | case snd_soc_dapm_dac: | |
1537 | case snd_soc_dapm_pga: | |
d88429a6 | 1538 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
1539 | case snd_soc_dapm_input: |
1540 | case snd_soc_dapm_output: | |
1541 | case snd_soc_dapm_micbias: | |
1542 | case snd_soc_dapm_vmid: | |
1543 | case snd_soc_dapm_pre: | |
1544 | case snd_soc_dapm_post: | |
246d0a17 | 1545 | case snd_soc_dapm_supply: |
010ff262 MB |
1546 | case snd_soc_dapm_aif_in: |
1547 | case snd_soc_dapm_aif_out: | |
8ddab3f5 | 1548 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1549 | list_add(&path->list_sink, &wsink->sources); |
1550 | list_add(&path->list_source, &wsource->sinks); | |
1551 | path->connect = 1; | |
1552 | return 0; | |
1553 | case snd_soc_dapm_mux: | |
24ff33ac | 1554 | case snd_soc_dapm_virt_mux: |
74155556 | 1555 | case snd_soc_dapm_value_mux: |
ce6120cc | 1556 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
2b97eabc RP |
1557 | &wsink->kcontrols[0]); |
1558 | if (ret != 0) | |
1559 | goto err; | |
1560 | break; | |
1561 | case snd_soc_dapm_switch: | |
1562 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1563 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1564 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1565 | if (ret != 0) |
1566 | goto err; | |
1567 | break; | |
1568 | case snd_soc_dapm_hp: | |
1569 | case snd_soc_dapm_mic: | |
1570 | case snd_soc_dapm_line: | |
1571 | case snd_soc_dapm_spk: | |
8ddab3f5 | 1572 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1573 | list_add(&path->list_sink, &wsink->sources); |
1574 | list_add(&path->list_source, &wsource->sinks); | |
1575 | path->connect = 0; | |
1576 | return 0; | |
1577 | } | |
1578 | return 0; | |
1579 | ||
1580 | err: | |
f7d41ae8 JN |
1581 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1582 | source, control, sink); | |
2b97eabc RP |
1583 | kfree(path); |
1584 | return ret; | |
1585 | } | |
105f1c28 | 1586 | |
105f1c28 MB |
1587 | /** |
1588 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1589 | * @dapm: DAPM context |
105f1c28 MB |
1590 | * @route: audio routes |
1591 | * @num: number of routes | |
1592 | * | |
1593 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1594 | * the widget receiving the audio signal, whilst the source is the sender | |
1595 | * of the audio signal. | |
1596 | * | |
1597 | * Returns 0 for success else error. On error all resources can be freed | |
1598 | * with a call to snd_soc_card_free(). | |
1599 | */ | |
ce6120cc | 1600 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1601 | const struct snd_soc_dapm_route *route, int num) |
1602 | { | |
1603 | int i, ret; | |
1604 | ||
1605 | for (i = 0; i < num; i++) { | |
ce6120cc | 1606 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1607 | if (ret < 0) { |
f7d41ae8 JN |
1608 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1609 | route->source, route->sink); | |
105f1c28 MB |
1610 | return ret; |
1611 | } | |
1612 | route++; | |
1613 | } | |
1614 | ||
1615 | return 0; | |
1616 | } | |
1617 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1618 | ||
2b97eabc RP |
1619 | /** |
1620 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 1621 | * @dapm: DAPM context |
2b97eabc RP |
1622 | * |
1623 | * Checks the codec for any new dapm widgets and creates them if found. | |
1624 | * | |
1625 | * Returns 0 for success. | |
1626 | */ | |
ce6120cc | 1627 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1628 | { |
1629 | struct snd_soc_dapm_widget *w; | |
1630 | ||
97c866de | 1631 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
1632 | { |
1633 | if (w->new) | |
1634 | continue; | |
1635 | ||
1636 | switch(w->id) { | |
1637 | case snd_soc_dapm_switch: | |
1638 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1639 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 1640 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1641 | dapm_new_mixer(dapm, w); |
2b97eabc RP |
1642 | break; |
1643 | case snd_soc_dapm_mux: | |
24ff33ac | 1644 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 1645 | case snd_soc_dapm_value_mux: |
b75576d7 | 1646 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1647 | dapm_new_mux(dapm, w); |
2b97eabc RP |
1648 | break; |
1649 | case snd_soc_dapm_adc: | |
010ff262 | 1650 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
1651 | w->power_check = dapm_adc_check_power; |
1652 | break; | |
2b97eabc | 1653 | case snd_soc_dapm_dac: |
010ff262 | 1654 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
1655 | w->power_check = dapm_dac_check_power; |
1656 | break; | |
2b97eabc | 1657 | case snd_soc_dapm_pga: |
d88429a6 | 1658 | case snd_soc_dapm_out_drv: |
b75576d7 | 1659 | w->power_check = dapm_generic_check_power; |
ce6120cc | 1660 | dapm_new_pga(dapm, w); |
2b97eabc RP |
1661 | break; |
1662 | case snd_soc_dapm_input: | |
1663 | case snd_soc_dapm_output: | |
1664 | case snd_soc_dapm_micbias: | |
1665 | case snd_soc_dapm_spk: | |
1666 | case snd_soc_dapm_hp: | |
1667 | case snd_soc_dapm_mic: | |
1668 | case snd_soc_dapm_line: | |
b75576d7 MB |
1669 | w->power_check = dapm_generic_check_power; |
1670 | break; | |
246d0a17 MB |
1671 | case snd_soc_dapm_supply: |
1672 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
1673 | case snd_soc_dapm_vmid: |
1674 | case snd_soc_dapm_pre: | |
1675 | case snd_soc_dapm_post: | |
1676 | break; | |
1677 | } | |
1678 | w->new = 1; | |
1679 | } | |
1680 | ||
ce6120cc | 1681 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1682 | return 0; |
1683 | } | |
1684 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
1685 | ||
1686 | /** | |
1687 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
1688 | * @kcontrol: mixer control | |
ac11a2b3 | 1689 | * @ucontrol: control element information |
2b97eabc RP |
1690 | * |
1691 | * Callback to get the value of a dapm mixer control. | |
1692 | * | |
1693 | * Returns 0 for success. | |
1694 | */ | |
1695 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
1696 | struct snd_ctl_elem_value *ucontrol) | |
1697 | { | |
1698 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1699 | struct soc_mixer_control *mc = |
1700 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1701 | unsigned int reg = mc->reg; |
1702 | unsigned int shift = mc->shift; | |
1703 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 1704 | int max = mc->max; |
815ecf8d JS |
1705 | unsigned int invert = mc->invert; |
1706 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 1707 | |
2b97eabc RP |
1708 | ucontrol->value.integer.value[0] = |
1709 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
1710 | if (shift != rshift) | |
1711 | ucontrol->value.integer.value[1] = | |
1712 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
1713 | if (invert) { | |
1714 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 1715 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
1716 | if (shift != rshift) |
1717 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 1718 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
1719 | } |
1720 | ||
1721 | return 0; | |
1722 | } | |
1723 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
1724 | ||
1725 | /** | |
1726 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
1727 | * @kcontrol: mixer control | |
ac11a2b3 | 1728 | * @ucontrol: control element information |
2b97eabc RP |
1729 | * |
1730 | * Callback to set the value of a dapm mixer control. | |
1731 | * | |
1732 | * Returns 0 for success. | |
1733 | */ | |
1734 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
1735 | struct snd_ctl_elem_value *ucontrol) | |
1736 | { | |
1737 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
4eaa9819 JS |
1738 | struct soc_mixer_control *mc = |
1739 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
1740 | unsigned int reg = mc->reg; |
1741 | unsigned int shift = mc->shift; | |
4eaa9819 | 1742 | int max = mc->max; |
815ecf8d JS |
1743 | unsigned int mask = (1 << fls(max)) - 1; |
1744 | unsigned int invert = mc->invert; | |
e9cf7049 | 1745 | unsigned int val; |
97404f2e MB |
1746 | int connect, change; |
1747 | struct snd_soc_dapm_update update; | |
2b97eabc RP |
1748 | |
1749 | val = (ucontrol->value.integer.value[0] & mask); | |
1750 | ||
1751 | if (invert) | |
a7a4ac86 | 1752 | val = max - val; |
e9cf7049 | 1753 | mask = mask << shift; |
2b97eabc | 1754 | val = val << shift; |
2b97eabc RP |
1755 | |
1756 | mutex_lock(&widget->codec->mutex); | |
1757 | widget->value = val; | |
1758 | ||
e9cf7049 | 1759 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 1760 | if (change) { |
283375ce MB |
1761 | if (val) |
1762 | /* new connection */ | |
1763 | connect = invert ? 0:1; | |
1764 | else | |
1765 | /* old connection must be powered down */ | |
1766 | connect = invert ? 1:0; | |
1767 | ||
97404f2e MB |
1768 | update.kcontrol = kcontrol; |
1769 | update.widget = widget; | |
1770 | update.reg = reg; | |
1771 | update.mask = mask; | |
1772 | update.val = val; | |
1773 | widget->dapm->update = &update; | |
1774 | ||
283375ce | 1775 | dapm_mixer_update_power(widget, kcontrol, connect); |
97404f2e MB |
1776 | |
1777 | widget->dapm->update = NULL; | |
283375ce MB |
1778 | } |
1779 | ||
2b97eabc | 1780 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 1781 | return 0; |
2b97eabc RP |
1782 | } |
1783 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
1784 | ||
1785 | /** | |
1786 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
1787 | * @kcontrol: mixer control | |
ac11a2b3 | 1788 | * @ucontrol: control element information |
2b97eabc RP |
1789 | * |
1790 | * Callback to get the value of a dapm enumerated double mixer control. | |
1791 | * | |
1792 | * Returns 0 for success. | |
1793 | */ | |
1794 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
1795 | struct snd_ctl_elem_value *ucontrol) | |
1796 | { | |
1797 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1798 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
46f5822f | 1799 | unsigned int val, bitmask; |
2b97eabc | 1800 | |
f8ba0b7b | 1801 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
1802 | ; |
1803 | val = snd_soc_read(widget->codec, e->reg); | |
1804 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
1805 | if (e->shift_l != e->shift_r) | |
1806 | ucontrol->value.enumerated.item[1] = | |
1807 | (val >> e->shift_r) & (bitmask - 1); | |
1808 | ||
1809 | return 0; | |
1810 | } | |
1811 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
1812 | ||
1813 | /** | |
1814 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
1815 | * @kcontrol: mixer control | |
ac11a2b3 | 1816 | * @ucontrol: control element information |
2b97eabc RP |
1817 | * |
1818 | * Callback to set the value of a dapm enumerated double mixer control. | |
1819 | * | |
1820 | * Returns 0 for success. | |
1821 | */ | |
1822 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
1823 | struct snd_ctl_elem_value *ucontrol) | |
1824 | { | |
1825 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1826 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
3a65577d | 1827 | unsigned int val, mux, change; |
46f5822f | 1828 | unsigned int mask, bitmask; |
97404f2e | 1829 | struct snd_soc_dapm_update update; |
2b97eabc | 1830 | |
f8ba0b7b | 1831 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 1832 | ; |
f8ba0b7b | 1833 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
1834 | return -EINVAL; |
1835 | mux = ucontrol->value.enumerated.item[0]; | |
1836 | val = mux << e->shift_l; | |
1837 | mask = (bitmask - 1) << e->shift_l; | |
1838 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 1839 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
1840 | return -EINVAL; |
1841 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
1842 | mask |= (bitmask - 1) << e->shift_r; | |
1843 | } | |
1844 | ||
1845 | mutex_lock(&widget->codec->mutex); | |
1846 | widget->value = val; | |
3a65577d | 1847 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1642e3d4 | 1848 | |
97404f2e MB |
1849 | update.kcontrol = kcontrol; |
1850 | update.widget = widget; | |
1851 | update.reg = e->reg; | |
1852 | update.mask = mask; | |
1853 | update.val = val; | |
1854 | widget->dapm->update = &update; | |
1642e3d4 | 1855 | |
97404f2e | 1856 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 1857 | |
97404f2e | 1858 | widget->dapm->update = NULL; |
2b97eabc | 1859 | |
2b97eabc | 1860 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 1861 | return change; |
2b97eabc RP |
1862 | } |
1863 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
1864 | ||
d2b247a8 MB |
1865 | /** |
1866 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
1867 | * @kcontrol: mixer control | |
1868 | * @ucontrol: control element information | |
1869 | * | |
1870 | * Returns 0 for success. | |
1871 | */ | |
1872 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
1873 | struct snd_ctl_elem_value *ucontrol) | |
1874 | { | |
1875 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1876 | ||
1877 | ucontrol->value.enumerated.item[0] = widget->value; | |
1878 | ||
1879 | return 0; | |
1880 | } | |
1881 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
1882 | ||
1883 | /** | |
1884 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
1885 | * @kcontrol: mixer control | |
1886 | * @ucontrol: control element information | |
1887 | * | |
1888 | * Returns 0 for success. | |
1889 | */ | |
1890 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
1891 | struct snd_ctl_elem_value *ucontrol) | |
1892 | { | |
1893 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
1894 | struct soc_enum *e = | |
1895 | (struct soc_enum *)kcontrol->private_value; | |
1896 | int change; | |
1897 | int ret = 0; | |
1898 | ||
1899 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
1900 | return -EINVAL; | |
1901 | ||
1902 | mutex_lock(&widget->codec->mutex); | |
1903 | ||
1904 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
1905 | widget->value = ucontrol->value.enumerated.item[0]; | |
1906 | dapm_mux_update_power(widget, kcontrol, change, widget->value, e); | |
1907 | ||
1908 | mutex_unlock(&widget->codec->mutex); | |
1909 | return ret; | |
1910 | } | |
1911 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
1912 | ||
2e72f8e3 PU |
1913 | /** |
1914 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
1915 | * callback | |
1916 | * @kcontrol: mixer control | |
1917 | * @ucontrol: control element information | |
1918 | * | |
1919 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
1920 | * | |
1921 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1922 | * used for handling bitfield coded enumeration for example. | |
1923 | * | |
1924 | * Returns 0 for success. | |
1925 | */ | |
1926 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
1927 | struct snd_ctl_elem_value *ucontrol) | |
1928 | { | |
1929 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1930 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 1931 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
1932 | |
1933 | reg_val = snd_soc_read(widget->codec, e->reg); | |
1934 | val = (reg_val >> e->shift_l) & e->mask; | |
1935 | for (mux = 0; mux < e->max; mux++) { | |
1936 | if (val == e->values[mux]) | |
1937 | break; | |
1938 | } | |
1939 | ucontrol->value.enumerated.item[0] = mux; | |
1940 | if (e->shift_l != e->shift_r) { | |
1941 | val = (reg_val >> e->shift_r) & e->mask; | |
1942 | for (mux = 0; mux < e->max; mux++) { | |
1943 | if (val == e->values[mux]) | |
1944 | break; | |
1945 | } | |
1946 | ucontrol->value.enumerated.item[1] = mux; | |
1947 | } | |
1948 | ||
1949 | return 0; | |
1950 | } | |
1951 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
1952 | ||
1953 | /** | |
1954 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
1955 | * callback | |
1956 | * @kcontrol: mixer control | |
1957 | * @ucontrol: control element information | |
1958 | * | |
1959 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
1960 | * | |
1961 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
1962 | * used for handling bitfield coded enumeration for example. | |
1963 | * | |
1964 | * Returns 0 for success. | |
1965 | */ | |
1966 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
1967 | struct snd_ctl_elem_value *ucontrol) | |
1968 | { | |
1969 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); | |
74155556 | 1970 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 1971 | unsigned int val, mux, change; |
46f5822f | 1972 | unsigned int mask; |
97404f2e | 1973 | struct snd_soc_dapm_update update; |
2e72f8e3 PU |
1974 | |
1975 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
1976 | return -EINVAL; | |
1977 | mux = ucontrol->value.enumerated.item[0]; | |
1978 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
1979 | mask = e->mask << e->shift_l; | |
1980 | if (e->shift_l != e->shift_r) { | |
1981 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
1982 | return -EINVAL; | |
1983 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
1984 | mask |= e->mask << e->shift_r; | |
1985 | } | |
1986 | ||
1987 | mutex_lock(&widget->codec->mutex); | |
1988 | widget->value = val; | |
3a65577d | 1989 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
1642e3d4 | 1990 | |
97404f2e MB |
1991 | update.kcontrol = kcontrol; |
1992 | update.widget = widget; | |
1993 | update.reg = e->reg; | |
1994 | update.mask = mask; | |
1995 | update.val = val; | |
1996 | widget->dapm->update = &update; | |
1642e3d4 | 1997 | |
97404f2e | 1998 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 1999 | |
97404f2e | 2000 | widget->dapm->update = NULL; |
2e72f8e3 | 2001 | |
2e72f8e3 | 2002 | mutex_unlock(&widget->codec->mutex); |
97404f2e | 2003 | return change; |
2e72f8e3 PU |
2004 | } |
2005 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2006 | ||
8b37dbd2 MB |
2007 | /** |
2008 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2009 | * | |
2010 | * @kcontrol: mixer control | |
2011 | * @uinfo: control element information | |
2012 | * | |
2013 | * Callback to provide information about a pin switch control. | |
2014 | */ | |
2015 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2016 | struct snd_ctl_elem_info *uinfo) | |
2017 | { | |
2018 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2019 | uinfo->count = 1; | |
2020 | uinfo->value.integer.min = 0; | |
2021 | uinfo->value.integer.max = 1; | |
2022 | ||
2023 | return 0; | |
2024 | } | |
2025 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2026 | ||
2027 | /** | |
2028 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2029 | * | |
2030 | * @kcontrol: mixer control | |
2031 | * @ucontrol: Value | |
2032 | */ | |
2033 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2034 | struct snd_ctl_elem_value *ucontrol) | |
2035 | { | |
2036 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2037 | const char *pin = (const char *)kcontrol->private_value; | |
2038 | ||
2039 | mutex_lock(&codec->mutex); | |
2040 | ||
2041 | ucontrol->value.integer.value[0] = | |
ce6120cc | 2042 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
2043 | |
2044 | mutex_unlock(&codec->mutex); | |
2045 | ||
2046 | return 0; | |
2047 | } | |
2048 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2049 | ||
2050 | /** | |
2051 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2052 | * | |
2053 | * @kcontrol: mixer control | |
2054 | * @ucontrol: Value | |
2055 | */ | |
2056 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2057 | struct snd_ctl_elem_value *ucontrol) | |
2058 | { | |
2059 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2060 | const char *pin = (const char *)kcontrol->private_value; | |
2061 | ||
2062 | mutex_lock(&codec->mutex); | |
2063 | ||
2064 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 2065 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 2066 | else |
ce6120cc | 2067 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 2068 | |
ce6120cc | 2069 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
2070 | |
2071 | mutex_unlock(&codec->mutex); | |
2072 | ||
2073 | return 0; | |
2074 | } | |
2075 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2076 | ||
2b97eabc RP |
2077 | /** |
2078 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 2079 | * @dapm: DAPM context |
2b97eabc RP |
2080 | * @widget: widget template |
2081 | * | |
2082 | * Creates a new dapm control based upon the template. | |
2083 | * | |
2084 | * Returns 0 for success else error. | |
2085 | */ | |
ce6120cc | 2086 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
2087 | const struct snd_soc_dapm_widget *widget) |
2088 | { | |
2089 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2090 | size_t name_len; |
2b97eabc RP |
2091 | |
2092 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
2093 | return -ENOMEM; | |
2094 | ||
ead9b919 JN |
2095 | name_len = strlen(widget->name) + 1; |
2096 | if (dapm->codec->name_prefix) | |
2097 | name_len += 1 + strlen(dapm->codec->name_prefix); | |
2098 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2099 | if (w->name == NULL) { | |
2100 | kfree(w); | |
2101 | return -ENOMEM; | |
2102 | } | |
2103 | if (dapm->codec->name_prefix) | |
2104 | snprintf(w->name, name_len, "%s %s", | |
2105 | dapm->codec->name_prefix, widget->name); | |
2106 | else | |
2107 | snprintf(w->name, name_len, "%s", widget->name); | |
2108 | ||
97c866de | 2109 | dapm->n_widgets++; |
ce6120cc LG |
2110 | w->dapm = dapm; |
2111 | w->codec = dapm->codec; | |
2b97eabc RP |
2112 | INIT_LIST_HEAD(&w->sources); |
2113 | INIT_LIST_HEAD(&w->sinks); | |
2114 | INIT_LIST_HEAD(&w->list); | |
97c866de | 2115 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2116 | |
2117 | /* machine layer set ups unconnected pins and insertions */ | |
2118 | w->connected = 1; | |
2119 | return 0; | |
2120 | } | |
2121 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2122 | ||
4ba1327a MB |
2123 | /** |
2124 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2125 | * @dapm: DAPM context |
4ba1327a MB |
2126 | * @widget: widget array |
2127 | * @num: number of widgets | |
2128 | * | |
2129 | * Creates new DAPM controls based upon the templates. | |
2130 | * | |
2131 | * Returns 0 for success else error. | |
2132 | */ | |
ce6120cc | 2133 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2134 | const struct snd_soc_dapm_widget *widget, |
2135 | int num) | |
2136 | { | |
2137 | int i, ret; | |
2138 | ||
2139 | for (i = 0; i < num; i++) { | |
ce6120cc | 2140 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2141 | if (ret < 0) { |
f7d41ae8 JN |
2142 | dev_err(dapm->dev, |
2143 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2144 | widget->name, ret); | |
4ba1327a | 2145 | return ret; |
b8b33cb5 | 2146 | } |
4ba1327a MB |
2147 | widget++; |
2148 | } | |
2149 | return 0; | |
2150 | } | |
2151 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2152 | ||
ce6120cc | 2153 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2154 | const char *stream, int event) |
2b97eabc RP |
2155 | { |
2156 | struct snd_soc_dapm_widget *w; | |
2157 | ||
97c866de | 2158 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc | 2159 | { |
97c866de | 2160 | if (!w->sname || w->dapm != dapm) |
2b97eabc | 2161 | continue; |
f7d41ae8 JN |
2162 | dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
2163 | w->name, w->sname, stream, event); | |
2b97eabc RP |
2164 | if (strstr(w->sname, stream)) { |
2165 | switch(event) { | |
2166 | case SND_SOC_DAPM_STREAM_START: | |
2167 | w->active = 1; | |
2168 | break; | |
2169 | case SND_SOC_DAPM_STREAM_STOP: | |
2170 | w->active = 0; | |
2171 | break; | |
2172 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2173 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2174 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2175 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2176 | break; | |
2177 | } | |
2178 | } | |
2179 | } | |
2b97eabc | 2180 | |
ce6120cc LG |
2181 | dapm_power_widgets(dapm, event); |
2182 | } | |
2183 | ||
2184 | /** | |
2185 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2186 | * @rtd: PCM runtime data | |
2187 | * @stream: stream name | |
2188 | * @event: stream event | |
2189 | * | |
2190 | * Sends a stream event to the dapm core. The core then makes any | |
2191 | * necessary widget power changes. | |
2192 | * | |
2193 | * Returns 0 for success else error. | |
2194 | */ | |
2195 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2196 | const char *stream, int event) | |
2197 | { | |
2198 | struct snd_soc_codec *codec = rtd->codec; | |
2199 | ||
2200 | if (stream == NULL) | |
2201 | return 0; | |
2202 | ||
2203 | mutex_lock(&codec->mutex); | |
2204 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2205 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2206 | return 0; |
2207 | } | |
2208 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); | |
2209 | ||
2210 | /** | |
a5302181 | 2211 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2212 | * @dapm: DAPM context |
a5302181 | 2213 | * @pin: pin name |
2b97eabc | 2214 | * |
74b8f955 | 2215 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2216 | * a valid audio route and active audio stream. |
2217 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2218 | * do any widget power switching. | |
2b97eabc | 2219 | */ |
ce6120cc | 2220 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2221 | { |
ce6120cc | 2222 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2223 | } |
2224 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2225 | |
da34183e MB |
2226 | /** |
2227 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2228 | * @dapm: DAPM context |
da34183e MB |
2229 | * @pin: pin name |
2230 | * | |
2231 | * Enables input/output pin regardless of any other state. This is | |
2232 | * intended for use with microphone bias supplies used in microphone | |
2233 | * jack detection. | |
2234 | * | |
2235 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2236 | * do any widget power switching. | |
2237 | */ | |
ce6120cc LG |
2238 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2239 | const char *pin) | |
da34183e MB |
2240 | { |
2241 | struct snd_soc_dapm_widget *w; | |
2242 | ||
97c866de JN |
2243 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2244 | if (w->dapm != dapm) | |
2245 | continue; | |
da34183e | 2246 | if (!strcmp(w->name, pin)) { |
f7d41ae8 JN |
2247 | dev_dbg(w->dapm->dev, |
2248 | "dapm: force enable pin %s\n", pin); | |
da34183e MB |
2249 | w->connected = 1; |
2250 | w->force = 1; | |
2251 | return 0; | |
2252 | } | |
2253 | } | |
2254 | ||
f7d41ae8 | 2255 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
da34183e MB |
2256 | return -EINVAL; |
2257 | } | |
2258 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2259 | ||
a5302181 LG |
2260 | /** |
2261 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2262 | * @dapm: DAPM context |
a5302181 LG |
2263 | * @pin: pin name |
2264 | * | |
74b8f955 | 2265 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2266 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2267 | * do any widget power switching. | |
2268 | */ | |
ce6120cc LG |
2269 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2270 | const char *pin) | |
a5302181 | 2271 | { |
ce6120cc | 2272 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2273 | } |
a5302181 | 2274 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2275 | |
5817b52a MB |
2276 | /** |
2277 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2278 | * @dapm: DAPM context |
5817b52a MB |
2279 | * @pin: pin name |
2280 | * | |
2281 | * Marks the specified pin as being not connected, disabling it along | |
2282 | * any parent or child widgets. At present this is identical to | |
2283 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2284 | * additional things such as disabling controls which only affect | |
2285 | * paths through the pin. | |
2286 | * | |
2287 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2288 | * do any widget power switching. | |
2289 | */ | |
ce6120cc | 2290 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2291 | { |
ce6120cc | 2292 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2293 | } |
2294 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2295 | ||
eeec12bf | 2296 | /** |
a5302181 | 2297 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2298 | * @dapm: DAPM context |
a5302181 | 2299 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2300 | * |
a5302181 | 2301 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2302 | * |
a5302181 | 2303 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2304 | */ |
ce6120cc LG |
2305 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2306 | const char *pin) | |
eeec12bf GG |
2307 | { |
2308 | struct snd_soc_dapm_widget *w; | |
2309 | ||
97c866de JN |
2310 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2311 | if (w->dapm != dapm) | |
2312 | continue; | |
a5302181 | 2313 | if (!strcmp(w->name, pin)) |
eeec12bf GG |
2314 | return w->connected; |
2315 | } | |
2316 | ||
2317 | return 0; | |
2318 | } | |
a5302181 | 2319 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2320 | |
1547aba9 MB |
2321 | /** |
2322 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2323 | * @dapm: DAPM context |
1547aba9 MB |
2324 | * @pin: audio signal pin endpoint (or start point) |
2325 | * | |
2326 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2327 | * system is disabled a path between two endpoints flagged as ignoring | |
2328 | * suspend will not be disabled. The path must already be enabled via | |
2329 | * normal means at suspend time, it will not be turned on if it was not | |
2330 | * already enabled. | |
2331 | */ | |
ce6120cc LG |
2332 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2333 | const char *pin) | |
1547aba9 MB |
2334 | { |
2335 | struct snd_soc_dapm_widget *w; | |
2336 | ||
97c866de JN |
2337 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2338 | if (w->dapm != dapm) | |
2339 | continue; | |
1547aba9 MB |
2340 | if (!strcmp(w->name, pin)) { |
2341 | w->ignore_suspend = 1; | |
2342 | return 0; | |
2343 | } | |
2344 | } | |
2345 | ||
f7d41ae8 | 2346 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
1547aba9 MB |
2347 | return -EINVAL; |
2348 | } | |
2349 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2350 | ||
2b97eabc RP |
2351 | /** |
2352 | * snd_soc_dapm_free - free dapm resources | |
f0fba2ad | 2353 | * @card: SoC device |
2b97eabc RP |
2354 | * |
2355 | * Free all dapm widgets and resources. | |
2356 | */ | |
ce6120cc | 2357 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2358 | { |
ce6120cc LG |
2359 | snd_soc_dapm_sys_remove(dapm->dev); |
2360 | dapm_free_widgets(dapm); | |
7be31be8 | 2361 | list_del(&dapm->list); |
2b97eabc RP |
2362 | } |
2363 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2364 | ||
ce6120cc | 2365 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2366 | { |
51737470 MB |
2367 | struct snd_soc_dapm_widget *w; |
2368 | LIST_HEAD(down_list); | |
2369 | int powerdown = 0; | |
2370 | ||
97c866de JN |
2371 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2372 | if (w->dapm != dapm) | |
2373 | continue; | |
51737470 MB |
2374 | if (w->power) { |
2375 | dapm_seq_insert(w, &down_list, dapm_down_seq); | |
c2caa4da | 2376 | w->power = 0; |
51737470 MB |
2377 | powerdown = 1; |
2378 | } | |
2379 | } | |
2380 | ||
2381 | /* If there were no widgets to power down we're already in | |
2382 | * standby. | |
2383 | */ | |
2384 | if (powerdown) { | |
ce6120cc LG |
2385 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_PREPARE); |
2386 | dapm_seq_run(dapm, &down_list, 0, dapm_down_seq); | |
2387 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_STANDBY); | |
51737470 | 2388 | } |
f0fba2ad LG |
2389 | } |
2390 | ||
2391 | /* | |
2392 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2393 | */ | |
2394 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2395 | { | |
2396 | struct snd_soc_codec *codec; | |
2397 | ||
ce6120cc LG |
2398 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2399 | soc_dapm_shutdown_codec(&codec->dapm); | |
2400 | snd_soc_dapm_set_bias_level(card, &codec->dapm, SND_SOC_BIAS_OFF); | |
2401 | } | |
51737470 MB |
2402 | } |
2403 | ||
2b97eabc | 2404 | /* Module information */ |
d331124d | 2405 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2406 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2407 | MODULE_LICENSE("GPL"); |