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 | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
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, | |
62ea874a | 54 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 55 | [snd_soc_dapm_clock_supply] = 1, |
38357ab2 | 56 | [snd_soc_dapm_micbias] = 2, |
c74184ed | 57 | [snd_soc_dapm_dai_link] = 2, |
888df395 | 58 | [snd_soc_dapm_dai] = 3, |
010ff262 MB |
59 | [snd_soc_dapm_aif_in] = 3, |
60 | [snd_soc_dapm_aif_out] = 3, | |
61 | [snd_soc_dapm_mic] = 4, | |
62 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 63 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
64 | [snd_soc_dapm_value_mux] = 5, |
65 | [snd_soc_dapm_dac] = 6, | |
66 | [snd_soc_dapm_mixer] = 7, | |
67 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
68 | [snd_soc_dapm_pga] = 8, | |
69 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 70 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
71 | [snd_soc_dapm_hp] = 10, |
72 | [snd_soc_dapm_spk] = 10, | |
7e1f7c8a | 73 | [snd_soc_dapm_line] = 10, |
010ff262 | 74 | [snd_soc_dapm_post] = 11, |
2b97eabc | 75 | }; |
ca9c1aae | 76 | |
2b97eabc | 77 | static int dapm_down_seq[] = { |
38357ab2 MB |
78 | [snd_soc_dapm_pre] = 0, |
79 | [snd_soc_dapm_adc] = 1, | |
80 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 81 | [snd_soc_dapm_spk] = 2, |
7e1f7c8a | 82 | [snd_soc_dapm_line] = 2, |
d88429a6 | 83 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
84 | [snd_soc_dapm_pga] = 4, |
85 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
86 | [snd_soc_dapm_mixer] = 5, |
87 | [snd_soc_dapm_dac] = 6, | |
88 | [snd_soc_dapm_mic] = 7, | |
89 | [snd_soc_dapm_micbias] = 8, | |
90 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 91 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 92 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
93 | [snd_soc_dapm_aif_in] = 10, |
94 | [snd_soc_dapm_aif_out] = 10, | |
888df395 | 95 | [snd_soc_dapm_dai] = 10, |
c74184ed | 96 | [snd_soc_dapm_dai_link] = 11, |
d7e7eb91 | 97 | [snd_soc_dapm_clock_supply] = 12, |
c74184ed MB |
98 | [snd_soc_dapm_regulator_supply] = 12, |
99 | [snd_soc_dapm_supply] = 12, | |
100 | [snd_soc_dapm_post] = 13, | |
2b97eabc RP |
101 | }; |
102 | ||
12ef193d | 103 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
104 | { |
105 | if (pop_time) | |
106 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
107 | } | |
108 | ||
fd8d3bc0 | 109 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
110 | { |
111 | va_list args; | |
fd8d3bc0 | 112 | char *buf; |
15e4c72f | 113 | |
fd8d3bc0 JN |
114 | if (!pop_time) |
115 | return; | |
15e4c72f | 116 | |
fd8d3bc0 JN |
117 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
118 | if (buf == NULL) | |
119 | return; | |
15e4c72f | 120 | |
fd8d3bc0 JN |
121 | va_start(args, fmt); |
122 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 123 | dev_info(dev, "%s", buf); |
15e4c72f | 124 | va_end(args); |
fd8d3bc0 JN |
125 | |
126 | kfree(buf); | |
15e4c72f MB |
127 | } |
128 | ||
db432b41 MB |
129 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
130 | { | |
131 | return !list_empty(&w->dirty); | |
132 | } | |
133 | ||
25c77c5f | 134 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 135 | { |
75c1f891 MB |
136 | if (!dapm_dirty_widget(w)) { |
137 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
138 | w->name, reason); | |
db432b41 | 139 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 140 | } |
db432b41 | 141 | } |
25c77c5f | 142 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 143 | |
e2d32ff6 MB |
144 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
145 | { | |
146 | struct snd_soc_card *card = dapm->card; | |
147 | struct snd_soc_dapm_widget *w; | |
148 | ||
149 | mutex_lock(&card->dapm_mutex); | |
150 | ||
151 | list_for_each_entry(w, &card->widgets, list) { | |
152 | switch (w->id) { | |
153 | case snd_soc_dapm_input: | |
154 | case snd_soc_dapm_output: | |
155 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
156 | break; | |
157 | default: | |
158 | break; | |
159 | } | |
160 | } | |
161 | ||
162 | mutex_unlock(&card->dapm_mutex); | |
163 | } | |
164 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
165 | ||
2b97eabc | 166 | /* create a new dapm widget */ |
88cb4290 | 167 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
168 | const struct snd_soc_dapm_widget *_widget) |
169 | { | |
88cb4290 | 170 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
171 | } |
172 | ||
4805608a LG |
173 | /* get snd_card from DAPM context */ |
174 | static inline struct snd_card *dapm_get_snd_card( | |
175 | struct snd_soc_dapm_context *dapm) | |
176 | { | |
177 | if (dapm->codec) | |
178 | return dapm->codec->card->snd_card; | |
179 | else if (dapm->platform) | |
180 | return dapm->platform->card->snd_card; | |
181 | else | |
182 | BUG(); | |
183 | ||
184 | /* unreachable */ | |
185 | return NULL; | |
186 | } | |
187 | ||
188 | /* get soc_card from DAPM context */ | |
189 | static inline struct snd_soc_card *dapm_get_soc_card( | |
190 | struct snd_soc_dapm_context *dapm) | |
191 | { | |
192 | if (dapm->codec) | |
193 | return dapm->codec->card; | |
194 | else if (dapm->platform) | |
195 | return dapm->platform->card; | |
196 | else | |
197 | BUG(); | |
198 | ||
199 | /* unreachable */ | |
200 | return NULL; | |
201 | } | |
202 | ||
6c120e19 LG |
203 | static void dapm_reset(struct snd_soc_card *card) |
204 | { | |
205 | struct snd_soc_dapm_widget *w; | |
206 | ||
207 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
208 | ||
209 | list_for_each_entry(w, &card->widgets, list) { | |
210 | w->power_checked = false; | |
211 | w->inputs = -1; | |
212 | w->outputs = -1; | |
213 | } | |
214 | } | |
215 | ||
0445bdf4 LG |
216 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
217 | { | |
218 | if (w->codec) | |
219 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
220 | else if (w->platform) |
221 | return snd_soc_platform_read(w->platform, reg); | |
222 | ||
223 | dev_err(w->dapm->dev, "no valid widget read method\n"); | |
224 | return -1; | |
0445bdf4 LG |
225 | } |
226 | ||
227 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
228 | { | |
229 | if (w->codec) | |
230 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
231 | else if (w->platform) |
232 | return snd_soc_platform_write(w->platform, reg, val); | |
233 | ||
234 | dev_err(w->dapm->dev, "no valid widget write method\n"); | |
235 | return -1; | |
0445bdf4 LG |
236 | } |
237 | ||
49575fb5 LG |
238 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
239 | { | |
e06ab3b8 | 240 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
241 | mutex_lock(&w->codec->mutex); |
242 | else if (w->platform) | |
243 | mutex_lock(&w->platform->mutex); | |
244 | } | |
245 | ||
246 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
247 | { | |
e06ab3b8 | 248 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
249 | mutex_unlock(&w->codec->mutex); |
250 | else if (w->platform) | |
251 | mutex_unlock(&w->platform->mutex); | |
252 | } | |
253 | ||
254 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, | |
0445bdf4 LG |
255 | unsigned short reg, unsigned int mask, unsigned int value) |
256 | { | |
8a713da8 | 257 | bool change; |
0445bdf4 LG |
258 | unsigned int old, new; |
259 | int ret; | |
260 | ||
8a713da8 MB |
261 | if (w->codec && w->codec->using_regmap) { |
262 | ret = regmap_update_bits_check(w->codec->control_data, | |
263 | reg, mask, value, &change); | |
264 | if (ret != 0) | |
265 | return ret; | |
266 | } else { | |
49575fb5 | 267 | soc_widget_lock(w); |
8a713da8 | 268 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
269 | if (ret < 0) { |
270 | soc_widget_unlock(w); | |
0445bdf4 | 271 | return ret; |
49575fb5 | 272 | } |
8a713da8 MB |
273 | |
274 | old = ret; | |
275 | new = (old & ~mask) | (value & mask); | |
276 | change = old != new; | |
277 | if (change) { | |
278 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
279 | if (ret < 0) { |
280 | soc_widget_unlock(w); | |
8a713da8 | 281 | return ret; |
49575fb5 | 282 | } |
8a713da8 | 283 | } |
49575fb5 | 284 | soc_widget_unlock(w); |
0445bdf4 LG |
285 | } |
286 | ||
287 | return change; | |
288 | } | |
289 | ||
452c5eaa MB |
290 | /** |
291 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 292 | * @dapm: DAPM context |
452c5eaa MB |
293 | * @level: level to configure |
294 | * | |
295 | * Configure the bias (power) levels for the SoC audio device. | |
296 | * | |
297 | * Returns 0 for success else error. | |
298 | */ | |
ed5a4c47 | 299 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 300 | enum snd_soc_bias_level level) |
452c5eaa | 301 | { |
ed5a4c47 | 302 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
303 | int ret = 0; |
304 | ||
84e90930 MB |
305 | trace_snd_soc_bias_level_start(card, level); |
306 | ||
f0fba2ad | 307 | if (card && card->set_bias_level) |
d4c6005f | 308 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
309 | if (ret != 0) |
310 | goto out; | |
311 | ||
cc4c670a MB |
312 | if (dapm->codec) { |
313 | if (dapm->codec->driver->set_bias_level) | |
314 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
315 | level); | |
d8c3bb91 MB |
316 | else |
317 | dapm->bias_level = level; | |
4e872a46 | 318 | } else if (!card || dapm != &card->dapm) { |
4123128e | 319 | dapm->bias_level = level; |
4e872a46 | 320 | } |
4123128e | 321 | |
171ec6b0 MB |
322 | if (ret != 0) |
323 | goto out; | |
324 | ||
325 | if (card && card->set_bias_level_post) | |
d4c6005f | 326 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 327 | out: |
84e90930 MB |
328 | trace_snd_soc_bias_level_done(card, level); |
329 | ||
452c5eaa MB |
330 | return ret; |
331 | } | |
332 | ||
2b97eabc RP |
333 | /* set up initial codec paths */ |
334 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
335 | struct snd_soc_dapm_path *p, int i) | |
336 | { | |
337 | switch (w->id) { | |
338 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
339 | case snd_soc_dapm_mixer: |
340 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 341 | int val; |
4eaa9819 | 342 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 343 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
344 | unsigned int reg = mc->reg; |
345 | unsigned int shift = mc->shift; | |
4eaa9819 | 346 | int max = mc->max; |
815ecf8d JS |
347 | unsigned int mask = (1 << fls(max)) - 1; |
348 | unsigned int invert = mc->invert; | |
2b97eabc | 349 | |
0445bdf4 | 350 | val = soc_widget_read(w, reg); |
2b97eabc | 351 | val = (val >> shift) & mask; |
32fee7af BT |
352 | if (invert) |
353 | val = max - val; | |
2b97eabc | 354 | |
32fee7af | 355 | p->connect = !!val; |
2b97eabc RP |
356 | } |
357 | break; | |
358 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
359 | struct soc_enum *e = (struct soc_enum *) |
360 | w->kcontrol_news[i].private_value; | |
86767b7d | 361 | int val, item; |
2b97eabc | 362 | |
0445bdf4 | 363 | val = soc_widget_read(w, e->reg); |
86767b7d | 364 | item = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
365 | |
366 | p->connect = 0; | |
f8ba0b7b | 367 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
368 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
369 | p->connect = 1; | |
370 | } | |
371 | } | |
372 | break; | |
24ff33ac | 373 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
374 | struct soc_enum *e = (struct soc_enum *) |
375 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
376 | |
377 | p->connect = 0; | |
378 | /* since a virtual mux has no backing registers to | |
379 | * decide which path to connect, it will try to match | |
380 | * with the first enumeration. This is to ensure | |
381 | * that the default mux choice (the first) will be | |
382 | * correctly powered up during initialization. | |
383 | */ | |
384 | if (!strcmp(p->name, e->texts[0])) | |
385 | p->connect = 1; | |
386 | } | |
387 | break; | |
2e72f8e3 | 388 | case snd_soc_dapm_value_mux: { |
74155556 | 389 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 390 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
391 | int val, item; |
392 | ||
0445bdf4 | 393 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
394 | val = (val >> e->shift_l) & e->mask; |
395 | for (item = 0; item < e->max; item++) { | |
396 | if (val == e->values[item]) | |
397 | break; | |
398 | } | |
399 | ||
400 | p->connect = 0; | |
401 | for (i = 0; i < e->max; i++) { | |
402 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
403 | p->connect = 1; | |
404 | } | |
405 | } | |
406 | break; | |
56563100 | 407 | /* does not affect routing - always connected */ |
2b97eabc | 408 | case snd_soc_dapm_pga: |
d88429a6 | 409 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
410 | case snd_soc_dapm_output: |
411 | case snd_soc_dapm_adc: | |
412 | case snd_soc_dapm_input: | |
1ab97c8c | 413 | case snd_soc_dapm_siggen: |
2b97eabc RP |
414 | case snd_soc_dapm_dac: |
415 | case snd_soc_dapm_micbias: | |
416 | case snd_soc_dapm_vmid: | |
246d0a17 | 417 | case snd_soc_dapm_supply: |
62ea874a | 418 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 419 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
420 | case snd_soc_dapm_aif_in: |
421 | case snd_soc_dapm_aif_out: | |
888df395 | 422 | case snd_soc_dapm_dai: |
2b97eabc RP |
423 | case snd_soc_dapm_hp: |
424 | case snd_soc_dapm_mic: | |
425 | case snd_soc_dapm_spk: | |
426 | case snd_soc_dapm_line: | |
c74184ed | 427 | case snd_soc_dapm_dai_link: |
56563100 MB |
428 | p->connect = 1; |
429 | break; | |
430 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
431 | case snd_soc_dapm_pre: |
432 | case snd_soc_dapm_post: | |
433 | p->connect = 0; | |
434 | break; | |
435 | } | |
436 | } | |
437 | ||
74b8f955 | 438 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 439 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
440 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
441 | struct snd_soc_dapm_path *path, const char *control_name, | |
442 | const struct snd_kcontrol_new *kcontrol) | |
443 | { | |
444 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
445 | int i; | |
446 | ||
f8ba0b7b | 447 | for (i = 0; i < e->max; i++) { |
2b97eabc | 448 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 449 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
450 | list_add(&path->list_sink, &dest->sources); |
451 | list_add(&path->list_source, &src->sinks); | |
452 | path->name = (char*)e->texts[i]; | |
453 | dapm_set_path_status(dest, path, 0); | |
454 | return 0; | |
455 | } | |
456 | } | |
457 | ||
458 | return -ENODEV; | |
459 | } | |
460 | ||
74b8f955 | 461 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 462 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
463 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
464 | struct snd_soc_dapm_path *path, const char *control_name) | |
465 | { | |
466 | int i; | |
467 | ||
468 | /* search for mixer kcontrol */ | |
469 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 470 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 471 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
472 | list_add(&path->list_sink, &dest->sources); |
473 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 474 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
475 | dapm_set_path_status(dest, path, i); |
476 | return 0; | |
477 | } | |
478 | } | |
479 | return -ENODEV; | |
480 | } | |
481 | ||
af46800b | 482 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 483 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
484 | const struct snd_kcontrol_new *kcontrol_new, |
485 | struct snd_kcontrol **kcontrol) | |
486 | { | |
487 | struct snd_soc_dapm_widget *w; | |
488 | int i; | |
489 | ||
490 | *kcontrol = NULL; | |
491 | ||
492 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
493 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
494 | continue; | |
af46800b SW |
495 | for (i = 0; i < w->num_kcontrols; i++) { |
496 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
497 | if (w->kcontrols) | |
498 | *kcontrol = w->kcontrols[i]; | |
499 | return 1; | |
500 | } | |
501 | } | |
502 | } | |
503 | ||
504 | return 0; | |
505 | } | |
506 | ||
2b97eabc | 507 | /* create new dapm mixer control */ |
4b80b8c2 | 508 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
2b97eabc | 509 | { |
4b80b8c2 | 510 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc | 511 | int i, ret = 0; |
3e5ff4df | 512 | size_t name_len, prefix_len; |
2b97eabc | 513 | struct snd_soc_dapm_path *path; |
12ea2c78 | 514 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 515 | const char *prefix; |
fafd2176 SW |
516 | struct snd_soc_dapm_widget_list *wlist; |
517 | size_t wlistsize; | |
efb7ac3f MB |
518 | |
519 | if (dapm->codec) | |
520 | prefix = dapm->codec->name_prefix; | |
521 | else | |
522 | prefix = NULL; | |
2b97eabc | 523 | |
3e5ff4df MB |
524 | if (prefix) |
525 | prefix_len = strlen(prefix) + 1; | |
526 | else | |
527 | prefix_len = 0; | |
528 | ||
2b97eabc RP |
529 | /* add kcontrol */ |
530 | for (i = 0; i < w->num_kcontrols; i++) { | |
531 | ||
532 | /* match name */ | |
533 | list_for_each_entry(path, &w->sources, list_sink) { | |
534 | ||
535 | /* mixer/mux paths name must match control name */ | |
82cfecdc | 536 | if (path->name != (char *)w->kcontrol_news[i].name) |
2b97eabc RP |
537 | continue; |
538 | ||
82cd8764 LPC |
539 | if (w->kcontrols[i]) { |
540 | path->kcontrol = w->kcontrols[i]; | |
541 | continue; | |
542 | } | |
543 | ||
fafd2176 SW |
544 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
545 | sizeof(struct snd_soc_dapm_widget *), | |
546 | wlist = kzalloc(wlistsize, GFP_KERNEL); | |
547 | if (wlist == NULL) { | |
548 | dev_err(dapm->dev, | |
549 | "asoc: can't allocate widget list for %s\n", | |
550 | w->name); | |
551 | return -ENOMEM; | |
552 | } | |
553 | wlist->num_widgets = 1; | |
554 | wlist->widgets[0] = w; | |
555 | ||
ca9c1aae IM |
556 | /* add dapm control with long name. |
557 | * for dapm_mixer this is the concatenation of the | |
558 | * mixer and kcontrol name. | |
559 | * for dapm_mixer_named_ctl this is simply the | |
560 | * kcontrol name. | |
561 | */ | |
82cfecdc | 562 | name_len = strlen(w->kcontrol_news[i].name) + 1; |
07495f3e | 563 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
564 | name_len += 1 + strlen(w->name); |
565 | ||
219b93f5 | 566 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 567 | |
fafd2176 SW |
568 | if (path->long_name == NULL) { |
569 | kfree(wlist); | |
2b97eabc | 570 | return -ENOMEM; |
fafd2176 | 571 | } |
2b97eabc | 572 | |
ca9c1aae | 573 | switch (w->id) { |
ca9c1aae | 574 | default: |
3e5ff4df MB |
575 | /* The control will get a prefix from |
576 | * the control creation process but | |
577 | * we're also using the same prefix | |
578 | * for widgets so cut the prefix off | |
579 | * the front of the widget name. | |
580 | */ | |
888df395 MB |
581 | snprintf((char *)path->long_name, name_len, |
582 | "%s %s", w->name + prefix_len, | |
82cfecdc | 583 | w->kcontrol_news[i].name); |
07495f3e | 584 | break; |
ca9c1aae | 585 | case snd_soc_dapm_mixer_named_ctl: |
888df395 MB |
586 | snprintf((char *)path->long_name, name_len, |
587 | "%s", w->kcontrol_news[i].name); | |
07495f3e | 588 | break; |
ca9c1aae IM |
589 | } |
590 | ||
888df395 | 591 | ((char *)path->long_name)[name_len - 1] = '\0'; |
219b93f5 | 592 | |
fafd2176 SW |
593 | path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], |
594 | wlist, path->long_name, | |
595 | prefix); | |
ce6120cc | 596 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 597 | if (ret < 0) { |
f7d41ae8 JN |
598 | dev_err(dapm->dev, |
599 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
600 | path->long_name, ret); | |
fafd2176 | 601 | kfree(wlist); |
2b97eabc RP |
602 | kfree(path->long_name); |
603 | path->long_name = NULL; | |
604 | return ret; | |
605 | } | |
fad59888 | 606 | w->kcontrols[i] = path->kcontrol; |
2b97eabc RP |
607 | } |
608 | } | |
609 | return ret; | |
610 | } | |
611 | ||
612 | /* create new dapm mux control */ | |
4b80b8c2 | 613 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 614 | { |
4b80b8c2 | 615 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc RP |
616 | struct snd_soc_dapm_path *path = NULL; |
617 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 618 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 619 | const char *prefix; |
3e5ff4df | 620 | size_t prefix_len; |
af46800b | 621 | int ret; |
fafd2176 | 622 | struct snd_soc_dapm_widget_list *wlist; |
af46800b | 623 | int shared, wlistentries; |
fafd2176 | 624 | size_t wlistsize; |
888df395 | 625 | const char *name; |
2b97eabc | 626 | |
af46800b SW |
627 | if (w->num_kcontrols != 1) { |
628 | dev_err(dapm->dev, | |
629 | "asoc: mux %s has incorrect number of controls\n", | |
630 | w->name); | |
2b97eabc RP |
631 | return -EINVAL; |
632 | } | |
633 | ||
1007da06 | 634 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b SW |
635 | &kcontrol); |
636 | if (kcontrol) { | |
637 | wlist = kcontrol->private_data; | |
638 | wlistentries = wlist->num_widgets + 1; | |
639 | } else { | |
640 | wlist = NULL; | |
641 | wlistentries = 1; | |
642 | } | |
fafd2176 | 643 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b SW |
644 | wlistentries * sizeof(struct snd_soc_dapm_widget *), |
645 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
fafd2176 SW |
646 | if (wlist == NULL) { |
647 | dev_err(dapm->dev, | |
648 | "asoc: can't allocate widget list for %s\n", w->name); | |
649 | return -ENOMEM; | |
650 | } | |
af46800b SW |
651 | wlist->num_widgets = wlistentries; |
652 | wlist->widgets[wlistentries - 1] = w; | |
efb7ac3f | 653 | |
af46800b SW |
654 | if (!kcontrol) { |
655 | if (dapm->codec) | |
656 | prefix = dapm->codec->name_prefix; | |
657 | else | |
658 | prefix = NULL; | |
659 | ||
660 | if (shared) { | |
661 | name = w->kcontrol_news[0].name; | |
662 | prefix_len = 0; | |
663 | } else { | |
664 | name = w->name; | |
665 | if (prefix) | |
666 | prefix_len = strlen(prefix) + 1; | |
667 | else | |
668 | prefix_len = 0; | |
669 | } | |
3e5ff4df | 670 | |
af46800b SW |
671 | /* |
672 | * The control will get a prefix from the control creation | |
673 | * process but we're also using the same prefix for widgets so | |
674 | * cut the prefix off the front of the widget name. | |
675 | */ | |
676 | kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, | |
677 | name + prefix_len, prefix); | |
678 | ret = snd_ctl_add(card, kcontrol); | |
679 | if (ret < 0) { | |
53daf208 MB |
680 | dev_err(dapm->dev, "failed to add kcontrol %s: %d\n", |
681 | w->name, ret); | |
af46800b SW |
682 | kfree(wlist); |
683 | return ret; | |
684 | } | |
685 | } | |
ce6120cc | 686 | |
af46800b | 687 | kcontrol->private_data = wlist; |
2b97eabc | 688 | |
fad59888 SW |
689 | w->kcontrols[0] = kcontrol; |
690 | ||
2b97eabc RP |
691 | list_for_each_entry(path, &w->sources, list_sink) |
692 | path->kcontrol = kcontrol; | |
693 | ||
af46800b | 694 | return 0; |
2b97eabc RP |
695 | } |
696 | ||
697 | /* create new dapm volume control */ | |
4b80b8c2 | 698 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 699 | { |
a6c65736 | 700 | if (w->num_kcontrols) |
f7d41ae8 JN |
701 | dev_err(w->dapm->dev, |
702 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 703 | |
a6c65736 | 704 | return 0; |
2b97eabc RP |
705 | } |
706 | ||
707 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 708 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
709 | { |
710 | struct snd_soc_dapm_path *p; | |
711 | ||
8ddab3f5 | 712 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
713 | p->walked = 0; |
714 | } | |
715 | ||
9949788b MB |
716 | /* We implement power down on suspend by checking the power state of |
717 | * the ALSA card - when we are suspending the ALSA state for the card | |
718 | * is set to D3. | |
719 | */ | |
720 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
721 | { | |
12ea2c78 | 722 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 723 | |
f0fba2ad | 724 | switch (level) { |
9949788b MB |
725 | case SNDRV_CTL_POWER_D3hot: |
726 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 727 | if (widget->ignore_suspend) |
f7d41ae8 JN |
728 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
729 | widget->name); | |
1547aba9 | 730 | return widget->ignore_suspend; |
9949788b MB |
731 | default: |
732 | return 1; | |
733 | } | |
734 | } | |
735 | ||
ec2e3031 LG |
736 | /* add widget to list if it's not already in the list */ |
737 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
738 | struct snd_soc_dapm_widget *w) | |
739 | { | |
740 | struct snd_soc_dapm_widget_list *wlist; | |
741 | int wlistsize, wlistentries, i; | |
742 | ||
743 | if (*list == NULL) | |
744 | return -EINVAL; | |
745 | ||
746 | wlist = *list; | |
747 | ||
748 | /* is this widget already in the list */ | |
749 | for (i = 0; i < wlist->num_widgets; i++) { | |
750 | if (wlist->widgets[i] == w) | |
751 | return 0; | |
752 | } | |
753 | ||
754 | /* allocate some new space */ | |
755 | wlistentries = wlist->num_widgets + 1; | |
756 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
757 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
758 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
759 | if (*list == NULL) { | |
760 | dev_err(w->dapm->dev, "can't allocate widget list for %s\n", | |
761 | w->name); | |
762 | return -ENOMEM; | |
763 | } | |
764 | wlist = *list; | |
765 | ||
766 | /* insert the widget */ | |
767 | dev_dbg(w->dapm->dev, "added %s in widget list pos %d\n", | |
768 | w->name, wlist->num_widgets); | |
769 | ||
770 | wlist->widgets[wlist->num_widgets] = w; | |
771 | wlist->num_widgets++; | |
772 | return 1; | |
773 | } | |
774 | ||
2b97eabc RP |
775 | /* |
776 | * Recursively check for a completed path to an active or physically connected | |
777 | * output widget. Returns number of complete paths. | |
778 | */ | |
ec2e3031 LG |
779 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
780 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
781 | { |
782 | struct snd_soc_dapm_path *path; | |
783 | int con = 0; | |
784 | ||
024dc078 MB |
785 | if (widget->outputs >= 0) |
786 | return widget->outputs; | |
787 | ||
de02d078 MB |
788 | DAPM_UPDATE_STAT(widget, path_checks); |
789 | ||
62ea874a MB |
790 | switch (widget->id) { |
791 | case snd_soc_dapm_supply: | |
792 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 793 | case snd_soc_dapm_clock_supply: |
246d0a17 | 794 | return 0; |
62ea874a MB |
795 | default: |
796 | break; | |
797 | } | |
246d0a17 | 798 | |
010ff262 MB |
799 | switch (widget->id) { |
800 | case snd_soc_dapm_adc: | |
801 | case snd_soc_dapm_aif_out: | |
888df395 | 802 | case snd_soc_dapm_dai: |
024dc078 MB |
803 | if (widget->active) { |
804 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
805 | return widget->outputs; | |
806 | } | |
010ff262 MB |
807 | default: |
808 | break; | |
809 | } | |
2b97eabc RP |
810 | |
811 | if (widget->connected) { | |
812 | /* connected pin ? */ | |
024dc078 MB |
813 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
814 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
815 | return widget->outputs; | |
816 | } | |
2b97eabc RP |
817 | |
818 | /* connected jack or spk ? */ | |
024dc078 MB |
819 | if (widget->id == snd_soc_dapm_hp || |
820 | widget->id == snd_soc_dapm_spk || | |
821 | (widget->id == snd_soc_dapm_line && | |
822 | !list_empty(&widget->sources))) { | |
823 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
824 | return widget->outputs; | |
825 | } | |
2b97eabc RP |
826 | } |
827 | ||
828 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
829 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
830 | ||
bf3a9e13 MB |
831 | if (path->weak) |
832 | continue; | |
833 | ||
2b97eabc RP |
834 | if (path->walked) |
835 | continue; | |
836 | ||
ec2e3031 LG |
837 | trace_snd_soc_dapm_output_path(widget, path); |
838 | ||
2b97eabc RP |
839 | if (path->sink && path->connect) { |
840 | path->walked = 1; | |
ec2e3031 LG |
841 | |
842 | /* do we need to add this widget to the list ? */ | |
843 | if (list) { | |
844 | int err; | |
845 | err = dapm_list_add_widget(list, path->sink); | |
846 | if (err < 0) { | |
847 | dev_err(widget->dapm->dev, "could not add widget %s\n", | |
848 | widget->name); | |
849 | return con; | |
850 | } | |
851 | } | |
852 | ||
853 | con += is_connected_output_ep(path->sink, list); | |
2b97eabc RP |
854 | } |
855 | } | |
856 | ||
024dc078 MB |
857 | widget->outputs = con; |
858 | ||
2b97eabc RP |
859 | return con; |
860 | } | |
861 | ||
862 | /* | |
863 | * Recursively check for a completed path to an active or physically connected | |
864 | * input widget. Returns number of complete paths. | |
865 | */ | |
ec2e3031 LG |
866 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
867 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
868 | { |
869 | struct snd_soc_dapm_path *path; | |
870 | int con = 0; | |
871 | ||
024dc078 MB |
872 | if (widget->inputs >= 0) |
873 | return widget->inputs; | |
874 | ||
de02d078 MB |
875 | DAPM_UPDATE_STAT(widget, path_checks); |
876 | ||
62ea874a MB |
877 | switch (widget->id) { |
878 | case snd_soc_dapm_supply: | |
879 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 880 | case snd_soc_dapm_clock_supply: |
246d0a17 | 881 | return 0; |
62ea874a MB |
882 | default: |
883 | break; | |
884 | } | |
246d0a17 | 885 | |
2b97eabc | 886 | /* active stream ? */ |
010ff262 MB |
887 | switch (widget->id) { |
888 | case snd_soc_dapm_dac: | |
889 | case snd_soc_dapm_aif_in: | |
888df395 | 890 | case snd_soc_dapm_dai: |
024dc078 MB |
891 | if (widget->active) { |
892 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
893 | return widget->inputs; | |
894 | } | |
010ff262 MB |
895 | default: |
896 | break; | |
897 | } | |
2b97eabc RP |
898 | |
899 | if (widget->connected) { | |
900 | /* connected pin ? */ | |
024dc078 MB |
901 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
902 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
903 | return widget->inputs; | |
904 | } | |
2b97eabc RP |
905 | |
906 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
907 | if (widget->id == snd_soc_dapm_vmid) { |
908 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
909 | return widget->inputs; | |
910 | } | |
2b97eabc RP |
911 | |
912 | /* connected jack ? */ | |
eaeae5d9 | 913 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
914 | (widget->id == snd_soc_dapm_line && |
915 | !list_empty(&widget->sinks))) { | |
916 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
917 | return widget->inputs; | |
918 | } | |
919 | ||
1ab97c8c MB |
920 | /* signal generator */ |
921 | if (widget->id == snd_soc_dapm_siggen) { | |
922 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
923 | return widget->inputs; | |
924 | } | |
2b97eabc RP |
925 | } |
926 | ||
927 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
928 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
929 | ||
bf3a9e13 MB |
930 | if (path->weak) |
931 | continue; | |
932 | ||
2b97eabc RP |
933 | if (path->walked) |
934 | continue; | |
935 | ||
ec2e3031 LG |
936 | trace_snd_soc_dapm_input_path(widget, path); |
937 | ||
2b97eabc RP |
938 | if (path->source && path->connect) { |
939 | path->walked = 1; | |
ec2e3031 LG |
940 | |
941 | /* do we need to add this widget to the list ? */ | |
942 | if (list) { | |
943 | int err; | |
90c6ce0d | 944 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 LG |
945 | if (err < 0) { |
946 | dev_err(widget->dapm->dev, "could not add widget %s\n", | |
947 | widget->name); | |
948 | return con; | |
949 | } | |
950 | } | |
951 | ||
952 | con += is_connected_input_ep(path->source, list); | |
2b97eabc RP |
953 | } |
954 | } | |
955 | ||
024dc078 MB |
956 | widget->inputs = con; |
957 | ||
2b97eabc RP |
958 | return con; |
959 | } | |
960 | ||
ec2e3031 LG |
961 | /** |
962 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
963 | * @dai: the soc DAI. | |
964 | * @stream: stream direction. | |
965 | * @list: list of active widgets for this stream. | |
966 | * | |
967 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
968 | * the initial stream specified by name. This takes into account | |
969 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
970 | * | |
971 | * Returns the number of valid paths or negative error. | |
972 | */ | |
973 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
974 | struct snd_soc_dapm_widget_list **list) | |
975 | { | |
976 | struct snd_soc_card *card = dai->card; | |
977 | int paths; | |
978 | ||
979 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
980 | dapm_reset(card); | |
981 | ||
982 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
983 | paths = is_connected_output_ep(dai->playback_widget, list); | |
984 | else | |
d298caae | 985 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
986 | |
987 | trace_snd_soc_dapm_connected(paths, stream); | |
988 | dapm_clear_walk(&card->dapm); | |
989 | mutex_unlock(&card->dapm_mutex); | |
990 | ||
991 | return paths; | |
992 | } | |
993 | ||
e2be2ccf JN |
994 | /* |
995 | * Handler for generic register modifier widget. | |
996 | */ | |
997 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
998 | struct snd_kcontrol *kcontrol, int event) | |
999 | { | |
1000 | unsigned int val; | |
1001 | ||
1002 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1003 | val = w->on_val; | |
1004 | else | |
1005 | val = w->off_val; | |
1006 | ||
49575fb5 | 1007 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1008 | w->mask << w->shift, val << w->shift); |
1009 | ||
1010 | return 0; | |
1011 | } | |
11589418 | 1012 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1013 | |
62ea874a MB |
1014 | /* |
1015 | * Handler for regulator supply widget. | |
1016 | */ | |
1017 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1018 | struct snd_kcontrol *kcontrol, int event) | |
1019 | { | |
c05b84d1 MB |
1020 | int ret; |
1021 | ||
1022 | if (SND_SOC_DAPM_EVENT_ON(event)) { | |
1023 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
1024 | ret = regulator_allow_bypass(w->regulator, true); | |
1025 | if (ret != 0) | |
1026 | dev_warn(w->dapm->dev, | |
1027 | "Failed to bypass %s: %d\n", | |
1028 | w->name, ret); | |
1029 | } | |
1030 | ||
a3cc056b | 1031 | return regulator_enable(w->regulator); |
c05b84d1 MB |
1032 | } else { |
1033 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
1034 | ret = regulator_allow_bypass(w->regulator, false); | |
1035 | if (ret != 0) | |
1036 | dev_warn(w->dapm->dev, | |
1037 | "Failed to unbypass %s: %d\n", | |
1038 | w->name, ret); | |
1039 | } | |
1040 | ||
a3cc056b | 1041 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1042 | } |
62ea874a MB |
1043 | } |
1044 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1045 | ||
d7e7eb91 OL |
1046 | /* |
1047 | * Handler for clock supply widget. | |
1048 | */ | |
1049 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1050 | struct snd_kcontrol *kcontrol, int event) | |
1051 | { | |
1052 | if (!w->clk) | |
1053 | return -EIO; | |
1054 | ||
ec02995a | 1055 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 OL |
1056 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
1057 | return clk_enable(w->clk); | |
1058 | } else { | |
1059 | clk_disable(w->clk); | |
1060 | return 0; | |
1061 | } | |
ec02995a | 1062 | #endif |
98b3cf12 | 1063 | return 0; |
d7e7eb91 OL |
1064 | } |
1065 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1066 | ||
d805002b MB |
1067 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1068 | { | |
9b8a83b2 MB |
1069 | if (w->power_checked) |
1070 | return w->new_power; | |
1071 | ||
d805002b | 1072 | if (w->force) |
9b8a83b2 | 1073 | w->new_power = 1; |
d805002b | 1074 | else |
9b8a83b2 MB |
1075 | w->new_power = w->power_check(w); |
1076 | ||
1077 | w->power_checked = true; | |
1078 | ||
1079 | return w->new_power; | |
d805002b MB |
1080 | } |
1081 | ||
cd0f2d47 MB |
1082 | /* Generic check to see if a widget should be powered. |
1083 | */ | |
1084 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1085 | { | |
1086 | int in, out; | |
1087 | ||
de02d078 MB |
1088 | DAPM_UPDATE_STAT(w, power_checks); |
1089 | ||
ec2e3031 | 1090 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1091 | dapm_clear_walk(w->dapm); |
ec2e3031 | 1092 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1093 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
1094 | return out != 0 && in != 0; |
1095 | } | |
1096 | ||
888df395 MB |
1097 | static int dapm_dai_check_power(struct snd_soc_dapm_widget *w) |
1098 | { | |
1099 | DAPM_UPDATE_STAT(w, power_checks); | |
1100 | ||
1eee1b38 MB |
1101 | if (w->active) |
1102 | return w->active; | |
1103 | ||
1104 | return dapm_generic_check_power(w); | |
888df395 MB |
1105 | } |
1106 | ||
6ea31b9f MB |
1107 | /* Check to see if an ADC has power */ |
1108 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1109 | { | |
1110 | int in; | |
1111 | ||
de02d078 MB |
1112 | DAPM_UPDATE_STAT(w, power_checks); |
1113 | ||
6ea31b9f | 1114 | if (w->active) { |
ec2e3031 | 1115 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1116 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
1117 | return in != 0; |
1118 | } else { | |
1119 | return dapm_generic_check_power(w); | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | /* Check to see if a DAC has power */ | |
1124 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1125 | { | |
1126 | int out; | |
1127 | ||
de02d078 MB |
1128 | DAPM_UPDATE_STAT(w, power_checks); |
1129 | ||
6ea31b9f | 1130 | if (w->active) { |
ec2e3031 | 1131 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1132 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
1133 | return out != 0; |
1134 | } else { | |
1135 | return dapm_generic_check_power(w); | |
1136 | } | |
1137 | } | |
1138 | ||
246d0a17 MB |
1139 | /* Check to see if a power supply is needed */ |
1140 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1141 | { | |
1142 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1143 | |
de02d078 MB |
1144 | DAPM_UPDATE_STAT(w, power_checks); |
1145 | ||
246d0a17 MB |
1146 | /* Check if one of our outputs is connected */ |
1147 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1148 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1149 | ||
bf3a9e13 MB |
1150 | if (path->weak) |
1151 | continue; | |
1152 | ||
215edda3 MB |
1153 | if (path->connected && |
1154 | !path->connected(path->source, path->sink)) | |
1155 | continue; | |
1156 | ||
3017358a MB |
1157 | if (!path->sink) |
1158 | continue; | |
1159 | ||
f68d7e16 MB |
1160 | if (dapm_widget_power_check(path->sink)) |
1161 | return 1; | |
246d0a17 MB |
1162 | } |
1163 | ||
ce6120cc | 1164 | dapm_clear_walk(w->dapm); |
246d0a17 | 1165 | |
f68d7e16 | 1166 | return 0; |
246d0a17 MB |
1167 | } |
1168 | ||
35c64bca MB |
1169 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1170 | { | |
1171 | return 1; | |
1172 | } | |
1173 | ||
38357ab2 MB |
1174 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1175 | struct snd_soc_dapm_widget *b, | |
828a842f | 1176 | bool power_up) |
42aa3418 | 1177 | { |
828a842f MB |
1178 | int *sort; |
1179 | ||
1180 | if (power_up) | |
1181 | sort = dapm_up_seq; | |
1182 | else | |
1183 | sort = dapm_down_seq; | |
1184 | ||
38357ab2 MB |
1185 | if (sort[a->id] != sort[b->id]) |
1186 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1187 | if (a->subseq != b->subseq) { |
1188 | if (power_up) | |
1189 | return a->subseq - b->subseq; | |
1190 | else | |
1191 | return b->subseq - a->subseq; | |
1192 | } | |
b22ead2a MB |
1193 | if (a->reg != b->reg) |
1194 | return a->reg - b->reg; | |
84dab567 MB |
1195 | if (a->dapm != b->dapm) |
1196 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1197 | |
38357ab2 MB |
1198 | return 0; |
1199 | } | |
42aa3418 | 1200 | |
38357ab2 MB |
1201 | /* Insert a widget in order into a DAPM power sequence. */ |
1202 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1203 | struct list_head *list, | |
828a842f | 1204 | bool power_up) |
38357ab2 MB |
1205 | { |
1206 | struct snd_soc_dapm_widget *w; | |
1207 | ||
1208 | list_for_each_entry(w, list, power_list) | |
828a842f | 1209 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1210 | list_add_tail(&new_widget->power_list, &w->power_list); |
1211 | return; | |
1212 | } | |
1213 | ||
1214 | list_add_tail(&new_widget->power_list, list); | |
1215 | } | |
1216 | ||
68f89ad8 MB |
1217 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
1218 | struct snd_soc_dapm_widget *w, int event) | |
1219 | { | |
1220 | struct snd_soc_card *card = dapm->card; | |
1221 | const char *ev_name; | |
1222 | int power, ret; | |
1223 | ||
1224 | switch (event) { | |
1225 | case SND_SOC_DAPM_PRE_PMU: | |
1226 | ev_name = "PRE_PMU"; | |
1227 | power = 1; | |
1228 | break; | |
1229 | case SND_SOC_DAPM_POST_PMU: | |
1230 | ev_name = "POST_PMU"; | |
1231 | power = 1; | |
1232 | break; | |
1233 | case SND_SOC_DAPM_PRE_PMD: | |
1234 | ev_name = "PRE_PMD"; | |
1235 | power = 0; | |
1236 | break; | |
1237 | case SND_SOC_DAPM_POST_PMD: | |
1238 | ev_name = "POST_PMD"; | |
1239 | power = 0; | |
1240 | break; | |
1241 | default: | |
1242 | BUG(); | |
1243 | return; | |
1244 | } | |
1245 | ||
1246 | if (w->power != power) | |
1247 | return; | |
1248 | ||
1249 | if (w->event && (w->event_flags & event)) { | |
1250 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1251 | w->name, ev_name); | |
84e90930 | 1252 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1253 | ret = w->event(w, NULL, event); |
84e90930 | 1254 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
1255 | if (ret < 0) |
1256 | pr_err("%s: %s event failed: %d\n", | |
1257 | ev_name, w->name, ret); | |
1258 | } | |
1259 | } | |
1260 | ||
b22ead2a | 1261 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1262 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1263 | struct list_head *pending) |
163cac06 | 1264 | { |
3a45b867 | 1265 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1266 | struct snd_soc_dapm_widget *w; |
1267 | int reg, power; | |
b22ead2a MB |
1268 | unsigned int value = 0; |
1269 | unsigned int mask = 0; | |
1270 | unsigned int cur_mask; | |
1271 | ||
1272 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1273 | power_list)->reg; | |
1274 | ||
1275 | list_for_each_entry(w, pending, power_list) { | |
1276 | cur_mask = 1 << w->shift; | |
1277 | BUG_ON(reg != w->reg); | |
1278 | ||
1279 | if (w->invert) | |
1280 | power = !w->power; | |
1281 | else | |
1282 | power = w->power; | |
1283 | ||
1284 | mask |= cur_mask; | |
1285 | if (power) | |
1286 | value |= cur_mask; | |
1287 | ||
fd8d3bc0 | 1288 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1289 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1290 | w->name, reg, value, mask); | |
81628103 | 1291 | |
68f89ad8 MB |
1292 | /* Check for events */ |
1293 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1294 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1295 | } |
1296 | ||
1297 | if (reg >= 0) { | |
29376bc7 MB |
1298 | /* Any widget will do, they should all be updating the |
1299 | * same register. | |
1300 | */ | |
1301 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1302 | power_list); | |
1303 | ||
fd8d3bc0 | 1304 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1305 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1306 | value, mask, reg, card->pop_time); |
1307 | pop_wait(card->pop_time); | |
49575fb5 | 1308 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1309 | } |
1310 | ||
81628103 | 1311 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1312 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1313 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1314 | } |
b22ead2a | 1315 | } |
42aa3418 | 1316 | |
b22ead2a MB |
1317 | /* Apply a DAPM power sequence. |
1318 | * | |
1319 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1320 | * order to minimise the number of writes to the device required | |
1321 | * multiple widgets will be updated in a single write where possible. | |
1322 | * Currently anything that requires more than a single write is not | |
1323 | * handled. | |
1324 | */ | |
ce6120cc | 1325 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1326 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1327 | { |
1328 | struct snd_soc_dapm_widget *w, *n; | |
1329 | LIST_HEAD(pending); | |
1330 | int cur_sort = -1; | |
20e4859d | 1331 | int cur_subseq = -1; |
b22ead2a | 1332 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1333 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1334 | int ret, i; |
828a842f MB |
1335 | int *sort; |
1336 | ||
1337 | if (power_up) | |
1338 | sort = dapm_up_seq; | |
1339 | else | |
1340 | sort = dapm_down_seq; | |
163cac06 | 1341 | |
b22ead2a MB |
1342 | list_for_each_entry_safe(w, n, list, power_list) { |
1343 | ret = 0; | |
1344 | ||
1345 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1346 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1347 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1348 | if (!list_empty(&pending)) |
7be31be8 | 1349 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1350 | |
474b62d6 MB |
1351 | if (cur_dapm && cur_dapm->seq_notifier) { |
1352 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1353 | if (sort[i] == cur_sort) | |
1354 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1355 | i, |
1356 | cur_subseq); | |
474b62d6 MB |
1357 | } |
1358 | ||
b22ead2a MB |
1359 | INIT_LIST_HEAD(&pending); |
1360 | cur_sort = -1; | |
b0b3e6f8 | 1361 | cur_subseq = INT_MIN; |
b22ead2a | 1362 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1363 | cur_dapm = NULL; |
b22ead2a MB |
1364 | } |
1365 | ||
163cac06 MB |
1366 | switch (w->id) { |
1367 | case snd_soc_dapm_pre: | |
1368 | if (!w->event) | |
b22ead2a MB |
1369 | list_for_each_entry_safe_continue(w, n, list, |
1370 | power_list); | |
163cac06 | 1371 | |
b22ead2a | 1372 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1373 | ret = w->event(w, |
1374 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1375 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1376 | ret = w->event(w, |
1377 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1378 | break; |
1379 | ||
1380 | case snd_soc_dapm_post: | |
1381 | if (!w->event) | |
b22ead2a MB |
1382 | list_for_each_entry_safe_continue(w, n, list, |
1383 | power_list); | |
163cac06 | 1384 | |
b22ead2a | 1385 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1386 | ret = w->event(w, |
1387 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1388 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1389 | ret = w->event(w, |
1390 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1391 | break; |
1392 | ||
b22ead2a | 1393 | default: |
81628103 MB |
1394 | /* Queue it up for application */ |
1395 | cur_sort = sort[w->id]; | |
20e4859d | 1396 | cur_subseq = w->subseq; |
81628103 | 1397 | cur_reg = w->reg; |
7be31be8 | 1398 | cur_dapm = w->dapm; |
81628103 MB |
1399 | list_move(&w->power_list, &pending); |
1400 | break; | |
163cac06 | 1401 | } |
b22ead2a MB |
1402 | |
1403 | if (ret < 0) | |
f7d41ae8 JN |
1404 | dev_err(w->dapm->dev, |
1405 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1406 | } |
b22ead2a MB |
1407 | |
1408 | if (!list_empty(&pending)) | |
28e86808 | 1409 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1410 | |
1411 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1412 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1413 | if (sort[i] == cur_sort) | |
1414 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1415 | i, cur_subseq); |
474b62d6 | 1416 | } |
42aa3418 MB |
1417 | } |
1418 | ||
97404f2e MB |
1419 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1420 | { | |
1421 | struct snd_soc_dapm_update *update = dapm->update; | |
1422 | struct snd_soc_dapm_widget *w; | |
1423 | int ret; | |
1424 | ||
1425 | if (!update) | |
1426 | return; | |
1427 | ||
1428 | w = update->widget; | |
1429 | ||
1430 | if (w->event && | |
1431 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1432 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1433 | if (ret != 0) | |
1434 | pr_err("%s DAPM pre-event failed: %d\n", | |
1435 | w->name, ret); | |
1436 | } | |
1437 | ||
49575fb5 | 1438 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1439 | update->val); |
1440 | if (ret < 0) | |
1441 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1442 | ||
1443 | if (w->event && | |
1444 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1445 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1446 | if (ret != 0) | |
1447 | pr_err("%s DAPM post-event failed: %d\n", | |
1448 | w->name, ret); | |
1449 | } | |
1450 | } | |
1451 | ||
9d0624a7 MB |
1452 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1453 | * they're changing state. | |
1454 | */ | |
1455 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1456 | { | |
1457 | struct snd_soc_dapm_context *d = data; | |
1458 | int ret; | |
1459 | ||
56fba41f MB |
1460 | /* If we're off and we're not supposed to be go into STANDBY */ |
1461 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1462 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1463 | if (d->dev) |
1464 | pm_runtime_get_sync(d->dev); | |
1465 | ||
9d0624a7 MB |
1466 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1467 | if (ret != 0) | |
1468 | dev_err(d->dev, | |
1469 | "Failed to turn on bias: %d\n", ret); | |
1470 | } | |
1471 | ||
56fba41f MB |
1472 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1473 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1474 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1475 | if (ret != 0) | |
1476 | dev_err(d->dev, | |
1477 | "Failed to prepare bias: %d\n", ret); | |
1478 | } | |
1479 | } | |
1480 | ||
1481 | /* Async callback run prior to DAPM sequences - brings to their final | |
1482 | * state. | |
1483 | */ | |
1484 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1485 | { | |
1486 | struct snd_soc_dapm_context *d = data; | |
1487 | int ret; | |
1488 | ||
1489 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1490 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1491 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1492 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1493 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1494 | if (ret != 0) | |
1495 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1496 | ret); | |
1497 | } | |
97404f2e | 1498 | |
9d0624a7 | 1499 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1500 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1501 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1502 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1503 | if (ret != 0) | |
1504 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
f1aac484 MB |
1505 | |
1506 | if (d->dev) | |
fb644e9c | 1507 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1508 | } |
1509 | ||
1510 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1511 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1512 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1513 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1514 | if (ret != 0) | |
1515 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1516 | ret); | |
1517 | } | |
1518 | } | |
97404f2e | 1519 | |
fe4fda5d MB |
1520 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1521 | bool power, bool connect) | |
1522 | { | |
1523 | /* If a connection is being made or broken then that update | |
1524 | * will have marked the peer dirty, otherwise the widgets are | |
1525 | * not connected and this update has no impact. */ | |
1526 | if (!connect) | |
1527 | return; | |
1528 | ||
1529 | /* If the peer is already in the state we're moving to then we | |
1530 | * won't have an impact on it. */ | |
1531 | if (power != peer->power) | |
75c1f891 | 1532 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1533 | } |
1534 | ||
05623c43 MB |
1535 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1536 | struct list_head *up_list, | |
1537 | struct list_head *down_list) | |
1538 | { | |
db432b41 MB |
1539 | struct snd_soc_dapm_path *path; |
1540 | ||
05623c43 MB |
1541 | if (w->power == power) |
1542 | return; | |
1543 | ||
1544 | trace_snd_soc_dapm_widget_power(w, power); | |
1545 | ||
db432b41 | 1546 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1547 | * also. |
db432b41 MB |
1548 | */ |
1549 | list_for_each_entry(path, &w->sources, list_sink) { | |
1550 | if (path->source) { | |
fe4fda5d MB |
1551 | dapm_widget_set_peer_power(path->source, power, |
1552 | path->connect); | |
db432b41 MB |
1553 | } |
1554 | } | |
f3bf3e45 MB |
1555 | switch (w->id) { |
1556 | case snd_soc_dapm_supply: | |
62ea874a | 1557 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1558 | case snd_soc_dapm_clock_supply: |
f3bf3e45 MB |
1559 | /* Supplies can't affect their outputs, only their inputs */ |
1560 | break; | |
1561 | default: | |
1562 | list_for_each_entry(path, &w->sinks, list_source) { | |
1563 | if (path->sink) { | |
1564 | dapm_widget_set_peer_power(path->sink, power, | |
1565 | path->connect); | |
1566 | } | |
db432b41 | 1567 | } |
f3bf3e45 | 1568 | break; |
db432b41 MB |
1569 | } |
1570 | ||
05623c43 MB |
1571 | if (power) |
1572 | dapm_seq_insert(w, up_list, true); | |
1573 | else | |
1574 | dapm_seq_insert(w, down_list, false); | |
1575 | ||
1576 | w->power = power; | |
1577 | } | |
1578 | ||
7c81beb0 MB |
1579 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1580 | struct list_head *up_list, | |
1581 | struct list_head *down_list) | |
1582 | { | |
7c81beb0 MB |
1583 | int power; |
1584 | ||
1585 | switch (w->id) { | |
1586 | case snd_soc_dapm_pre: | |
1587 | dapm_seq_insert(w, down_list, false); | |
1588 | break; | |
1589 | case snd_soc_dapm_post: | |
1590 | dapm_seq_insert(w, up_list, true); | |
1591 | break; | |
1592 | ||
1593 | default: | |
d805002b | 1594 | power = dapm_widget_power_check(w); |
7c81beb0 | 1595 | |
05623c43 | 1596 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1597 | break; |
1598 | } | |
1599 | } | |
1600 | ||
2b97eabc RP |
1601 | /* |
1602 | * Scan each dapm widget for complete audio path. | |
1603 | * A complete path is a route that has valid endpoints i.e.:- | |
1604 | * | |
1605 | * o DAC to output pin. | |
1606 | * o Input Pin to ADC. | |
1607 | * o Input pin to Output pin (bypass, sidetone) | |
1608 | * o DAC to ADC (loopback). | |
1609 | */ | |
ce6120cc | 1610 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1611 | { |
12ea2c78 | 1612 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1613 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1614 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1615 | LIST_HEAD(up_list); |
1616 | LIST_HEAD(down_list); | |
2955b47d | 1617 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1618 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1619 | |
84e90930 MB |
1620 | trace_snd_soc_dapm_start(card); |
1621 | ||
56fba41f | 1622 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1623 | if (d->idle_bias_off) |
1624 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1625 | else | |
1626 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1627 | } |
7be31be8 | 1628 | |
6c120e19 | 1629 | dapm_reset(card); |
9b8a83b2 | 1630 | |
6d3ddc81 | 1631 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1632 | * lists indicating if they should be powered up or down. We |
1633 | * only check widgets that have been flagged as dirty but note | |
1634 | * that new widgets may be added to the dirty list while we | |
1635 | * iterate. | |
6d3ddc81 | 1636 | */ |
db432b41 | 1637 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1638 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1639 | } |
1640 | ||
f9de6d74 | 1641 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1642 | switch (w->id) { |
1643 | case snd_soc_dapm_pre: | |
1644 | case snd_soc_dapm_post: | |
1645 | /* These widgets always need to be powered */ | |
1646 | break; | |
1647 | default: | |
1648 | list_del_init(&w->dirty); | |
1649 | break; | |
1650 | } | |
db432b41 | 1651 | |
f9de6d74 MB |
1652 | if (w->power) { |
1653 | d = w->dapm; | |
1654 | ||
1655 | /* Supplies and micbiases only bring the | |
1656 | * context up to STANDBY as unless something | |
1657 | * else is active and passing audio they | |
afe62367 MB |
1658 | * generally don't require full power. Signal |
1659 | * generators are virtual pins and have no | |
1660 | * power impact themselves. | |
f9de6d74 MB |
1661 | */ |
1662 | switch (w->id) { | |
afe62367 MB |
1663 | case snd_soc_dapm_siggen: |
1664 | break; | |
f9de6d74 | 1665 | case snd_soc_dapm_supply: |
62ea874a | 1666 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1667 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1668 | case snd_soc_dapm_micbias: |
1669 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1670 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1671 | break; | |
1672 | default: | |
1673 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1674 | break; | |
1675 | } | |
1676 | } | |
1677 | ||
1678 | } | |
1679 | ||
85a843c5 MB |
1680 | /* Force all contexts in the card to the same bias state if |
1681 | * they're not ground referenced. | |
1682 | */ | |
56fba41f | 1683 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1684 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1685 | if (d->target_bias_level > bias) |
1686 | bias = d->target_bias_level; | |
52ba67bf | 1687 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1688 | if (!d->idle_bias_off) |
1689 | d->target_bias_level = bias; | |
52ba67bf | 1690 | |
de02d078 | 1691 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1692 | |
9d0624a7 MB |
1693 | /* Run all the bias changes in parallel */ |
1694 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1695 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1696 | &async_domain); | |
1697 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1698 | |
6d3ddc81 | 1699 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1700 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1701 | |
97404f2e MB |
1702 | dapm_widget_update(dapm); |
1703 | ||
6d3ddc81 | 1704 | /* Now power up. */ |
828a842f | 1705 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1706 | |
9d0624a7 MB |
1707 | /* Run all the bias changes in parallel */ |
1708 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1709 | async_schedule_domain(dapm_post_sequence_async, d, | |
1710 | &async_domain); | |
1711 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1712 | |
8078d87f LG |
1713 | /* do we need to notify any clients that DAPM event is complete */ |
1714 | list_for_each_entry(d, &card->dapm_list, list) { | |
1715 | if (d->stream_event) | |
1716 | d->stream_event(d, event); | |
1717 | } | |
1718 | ||
fd8d3bc0 JN |
1719 | pop_dbg(dapm->dev, card->pop_time, |
1720 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1721 | pop_wait(card->pop_time); |
cb507e7e | 1722 | |
84e90930 MB |
1723 | trace_snd_soc_dapm_done(card); |
1724 | ||
42aa3418 | 1725 | return 0; |
2b97eabc RP |
1726 | } |
1727 | ||
79fb9387 | 1728 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1729 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1730 | char __user *user_buf, | |
1731 | size_t count, loff_t *ppos) | |
1732 | { | |
1733 | struct snd_soc_dapm_widget *w = file->private_data; | |
1734 | char *buf; | |
1735 | int in, out; | |
1736 | ssize_t ret; | |
1737 | struct snd_soc_dapm_path *p = NULL; | |
1738 | ||
1739 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1740 | if (!buf) | |
1741 | return -ENOMEM; | |
1742 | ||
ec2e3031 | 1743 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1744 | dapm_clear_walk(w->dapm); |
ec2e3031 | 1745 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1746 | dapm_clear_walk(w->dapm); |
79fb9387 | 1747 | |
f13ebada MB |
1748 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1749 | w->name, w->power ? "On" : "Off", | |
1750 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1751 | |
d033c36a MB |
1752 | if (w->reg >= 0) |
1753 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1754 | " - R%d(0x%x) bit %d", | |
1755 | w->reg, w->reg, w->shift); | |
1756 | ||
1757 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1758 | ||
3eef08ba MB |
1759 | if (w->sname) |
1760 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1761 | w->sname, | |
1762 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1763 | |
1764 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1765 | if (p->connected && !p->connected(w, p->sink)) |
1766 | continue; | |
1767 | ||
79fb9387 MB |
1768 | if (p->connect) |
1769 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1770 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1771 | p->name ? p->name : "static", |
1772 | p->source->name); | |
1773 | } | |
1774 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1775 | if (p->connected && !p->connected(w, p->sink)) |
1776 | continue; | |
1777 | ||
79fb9387 MB |
1778 | if (p->connect) |
1779 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1780 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1781 | p->name ? p->name : "static", |
1782 | p->sink->name); | |
1783 | } | |
1784 | ||
1785 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1786 | ||
1787 | kfree(buf); | |
1788 | return ret; | |
1789 | } | |
1790 | ||
1791 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1792 | .open = simple_open, |
79fb9387 | 1793 | .read = dapm_widget_power_read_file, |
6038f373 | 1794 | .llseek = default_llseek, |
79fb9387 MB |
1795 | }; |
1796 | ||
ef49e4fa MB |
1797 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1798 | size_t count, loff_t *ppos) | |
1799 | { | |
1800 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1801 | char *level; | |
1802 | ||
1803 | switch (dapm->bias_level) { | |
1804 | case SND_SOC_BIAS_ON: | |
1805 | level = "On\n"; | |
1806 | break; | |
1807 | case SND_SOC_BIAS_PREPARE: | |
1808 | level = "Prepare\n"; | |
1809 | break; | |
1810 | case SND_SOC_BIAS_STANDBY: | |
1811 | level = "Standby\n"; | |
1812 | break; | |
1813 | case SND_SOC_BIAS_OFF: | |
1814 | level = "Off\n"; | |
1815 | break; | |
1816 | default: | |
1817 | BUG(); | |
1818 | level = "Unknown\n"; | |
1819 | break; | |
1820 | } | |
1821 | ||
1822 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1823 | strlen(level)); | |
1824 | } | |
1825 | ||
1826 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1827 | .open = simple_open, |
ef49e4fa MB |
1828 | .read = dapm_bias_read_file, |
1829 | .llseek = default_llseek, | |
1830 | }; | |
1831 | ||
8eecaf62 LPC |
1832 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1833 | struct dentry *parent) | |
79fb9387 | 1834 | { |
79fb9387 MB |
1835 | struct dentry *d; |
1836 | ||
8eecaf62 LPC |
1837 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1838 | ||
1839 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1840 | dev_warn(dapm->dev, |
8eecaf62 | 1841 | "Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1842 | return; |
8eecaf62 | 1843 | } |
79fb9387 | 1844 | |
ef49e4fa MB |
1845 | d = debugfs_create_file("bias_level", 0444, |
1846 | dapm->debugfs_dapm, dapm, | |
1847 | &dapm_bias_fops); | |
1848 | if (!d) | |
1849 | dev_warn(dapm->dev, | |
1850 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1851 | } |
ef49e4fa | 1852 | |
d5d1e0be LPC |
1853 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1854 | { | |
1855 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1856 | struct dentry *d; | |
79fb9387 | 1857 | |
d5d1e0be LPC |
1858 | if (!dapm->debugfs_dapm || !w->name) |
1859 | return; | |
1860 | ||
1861 | d = debugfs_create_file(w->name, 0444, | |
1862 | dapm->debugfs_dapm, w, | |
1863 | &dapm_widget_power_fops); | |
1864 | if (!d) | |
1865 | dev_warn(w->dapm->dev, | |
1866 | "ASoC: Failed to create %s debugfs file\n", | |
1867 | w->name); | |
79fb9387 | 1868 | } |
d5d1e0be | 1869 | |
6c45e126 LPC |
1870 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1871 | { | |
1872 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1873 | } | |
1874 | ||
79fb9387 | 1875 | #else |
8eecaf62 LPC |
1876 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1877 | struct dentry *parent) | |
79fb9387 MB |
1878 | { |
1879 | } | |
d5d1e0be LPC |
1880 | |
1881 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1882 | { | |
1883 | } | |
1884 | ||
6c45e126 LPC |
1885 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1886 | { | |
1887 | } | |
1888 | ||
79fb9387 MB |
1889 | #endif |
1890 | ||
2b97eabc | 1891 | /* test and update the power status of a mux widget */ |
4edbb345 | 1892 | static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
40f02cd9 | 1893 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1894 | { |
1895 | struct snd_soc_dapm_path *path; | |
1896 | int found = 0; | |
1897 | ||
eff317d0 | 1898 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1899 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1900 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1901 | return -ENODEV; |
1902 | ||
2b97eabc | 1903 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1904 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1905 | if (path->kcontrol != kcontrol) |
1906 | continue; | |
1907 | ||
cb01e2b9 | 1908 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1909 | continue; |
1910 | ||
1911 | found = 1; | |
1912 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1913 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1914 | path->connect = 1; /* new connection */ |
75c1f891 | 1915 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1916 | } else { |
1917 | if (path->connect) | |
75c1f891 MB |
1918 | dapm_mark_dirty(path->source, |
1919 | "mux disconnection"); | |
2b97eabc | 1920 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1921 | } |
2b97eabc RP |
1922 | } |
1923 | ||
db432b41 | 1924 | if (found) { |
75c1f891 | 1925 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1926 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1927 | } |
2b97eabc | 1928 | |
618dae11 | 1929 | return found; |
2b97eabc | 1930 | } |
4edbb345 LG |
1931 | |
1932 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, | |
1933 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) | |
1934 | { | |
1935 | struct snd_soc_card *card = widget->dapm->card; | |
1936 | int ret; | |
1937 | ||
3cd04343 | 1938 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1939 | ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1940 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1941 | if (ret > 0) |
1942 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1943 | return ret; |
1944 | } | |
40f02cd9 | 1945 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1946 | |
1b075e3f | 1947 | /* test and update the power status of a mixer or switch widget */ |
4edbb345 | 1948 | static int soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1949 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1950 | { |
1951 | struct snd_soc_dapm_path *path; | |
1952 | int found = 0; | |
1953 | ||
1b075e3f | 1954 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1955 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1956 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1957 | return -ENODEV; |
1958 | ||
2b97eabc | 1959 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1960 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1961 | if (path->kcontrol != kcontrol) |
1962 | continue; | |
1963 | ||
1964 | /* found, now check type */ | |
1965 | found = 1; | |
283375ce | 1966 | path->connect = connect; |
75c1f891 | 1967 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
1968 | } |
1969 | ||
db432b41 | 1970 | if (found) { |
75c1f891 | 1971 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 1972 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1973 | } |
2b97eabc | 1974 | |
618dae11 | 1975 | return found; |
2b97eabc | 1976 | } |
4edbb345 LG |
1977 | |
1978 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, | |
1979 | struct snd_kcontrol *kcontrol, int connect) | |
1980 | { | |
1981 | struct snd_soc_card *card = widget->dapm->card; | |
1982 | int ret; | |
1983 | ||
3cd04343 | 1984 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1985 | ret = soc_dapm_mixer_update_power(widget, kcontrol, connect); |
1986 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1987 | if (ret > 0) |
1988 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1989 | return ret; |
1990 | } | |
40f02cd9 | 1991 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
1992 | |
1993 | /* show dapm widget status in sys fs */ | |
1994 | static ssize_t dapm_widget_show(struct device *dev, | |
1995 | struct device_attribute *attr, char *buf) | |
1996 | { | |
36ae1a96 | 1997 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 1998 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
1999 | struct snd_soc_dapm_widget *w; |
2000 | int count = 0; | |
2001 | char *state = "not set"; | |
2002 | ||
97c866de JN |
2003 | list_for_each_entry(w, &codec->card->widgets, list) { |
2004 | if (w->dapm != &codec->dapm) | |
2005 | continue; | |
2b97eabc RP |
2006 | |
2007 | /* only display widgets that burnm power */ | |
2008 | switch (w->id) { | |
2009 | case snd_soc_dapm_hp: | |
2010 | case snd_soc_dapm_mic: | |
2011 | case snd_soc_dapm_spk: | |
2012 | case snd_soc_dapm_line: | |
2013 | case snd_soc_dapm_micbias: | |
2014 | case snd_soc_dapm_dac: | |
2015 | case snd_soc_dapm_adc: | |
2016 | case snd_soc_dapm_pga: | |
d88429a6 | 2017 | case snd_soc_dapm_out_drv: |
2b97eabc | 2018 | case snd_soc_dapm_mixer: |
ca9c1aae | 2019 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2020 | case snd_soc_dapm_supply: |
62ea874a | 2021 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2022 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2023 | if (w->name) |
2024 | count += sprintf(buf + count, "%s: %s\n", | |
2025 | w->name, w->power ? "On":"Off"); | |
2026 | break; | |
2027 | default: | |
2028 | break; | |
2029 | } | |
2030 | } | |
2031 | ||
ce6120cc | 2032 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2033 | case SND_SOC_BIAS_ON: |
2034 | state = "On"; | |
2b97eabc | 2035 | break; |
0be9898a MB |
2036 | case SND_SOC_BIAS_PREPARE: |
2037 | state = "Prepare"; | |
2b97eabc | 2038 | break; |
0be9898a MB |
2039 | case SND_SOC_BIAS_STANDBY: |
2040 | state = "Standby"; | |
2b97eabc | 2041 | break; |
0be9898a MB |
2042 | case SND_SOC_BIAS_OFF: |
2043 | state = "Off"; | |
2b97eabc RP |
2044 | break; |
2045 | } | |
2046 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2047 | ||
2048 | return count; | |
2049 | } | |
2050 | ||
2051 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2052 | ||
2053 | int snd_soc_dapm_sys_add(struct device *dev) | |
2054 | { | |
12ef193d | 2055 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2056 | } |
2057 | ||
2058 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2059 | { | |
aef90843 | 2060 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2061 | } |
2062 | ||
2063 | /* free all dapm widgets and resources */ | |
ce6120cc | 2064 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2065 | { |
2066 | struct snd_soc_dapm_widget *w, *next_w; | |
2067 | struct snd_soc_dapm_path *p, *next_p; | |
2068 | ||
97c866de JN |
2069 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2070 | if (w->dapm != dapm) | |
2071 | continue; | |
2b97eabc | 2072 | list_del(&w->list); |
8ddab3f5 JN |
2073 | /* |
2074 | * remove source and sink paths associated to this widget. | |
2075 | * While removing the path, remove reference to it from both | |
2076 | * source and sink widgets so that path is removed only once. | |
2077 | */ | |
2078 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
2079 | list_del(&p->list_sink); | |
2080 | list_del(&p->list_source); | |
2081 | list_del(&p->list); | |
2082 | kfree(p->long_name); | |
2083 | kfree(p); | |
2084 | } | |
2085 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
2086 | list_del(&p->list_sink); | |
2087 | list_del(&p->list_source); | |
2088 | list_del(&p->list); | |
2089 | kfree(p->long_name); | |
2090 | kfree(p); | |
2091 | } | |
fad59888 | 2092 | kfree(w->kcontrols); |
ead9b919 | 2093 | kfree(w->name); |
2b97eabc RP |
2094 | kfree(w); |
2095 | } | |
2b97eabc RP |
2096 | } |
2097 | ||
91a5fca4 LPC |
2098 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2099 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2100 | bool search_other_contexts) | |
a5302181 LG |
2101 | { |
2102 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2103 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2104 | |
97c866de | 2105 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2106 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2107 | if (w->dapm == dapm) |
2108 | return w; | |
2109 | else | |
2110 | fallback = w; | |
a5302181 LG |
2111 | } |
2112 | } | |
2113 | ||
91a5fca4 LPC |
2114 | if (search_other_contexts) |
2115 | return fallback; | |
2116 | ||
2117 | return NULL; | |
2118 | } | |
2119 | ||
2120 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2121 | const char *pin, int status) | |
2122 | { | |
2123 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2124 | ||
2125 | if (!w) { | |
2126 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2127 | return -EINVAL; | |
0d86733c MB |
2128 | } |
2129 | ||
1a8b2d9d MB |
2130 | if (w->connected != status) |
2131 | dapm_mark_dirty(w, "pin configuration"); | |
2132 | ||
91a5fca4 LPC |
2133 | w->connected = status; |
2134 | if (status == 0) | |
2135 | w->force = 0; | |
2136 | ||
2137 | return 0; | |
a5302181 LG |
2138 | } |
2139 | ||
2b97eabc | 2140 | /** |
a5302181 | 2141 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2142 | * @dapm: DAPM context |
2b97eabc RP |
2143 | * |
2144 | * Walks all dapm audio paths and powers widgets according to their | |
2145 | * stream or path usage. | |
2146 | * | |
2147 | * Returns 0 for success. | |
2148 | */ | |
ce6120cc | 2149 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2150 | { |
a73fb2df LG |
2151 | int ret; |
2152 | ||
4f4c0072 MB |
2153 | /* |
2154 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2155 | * silly DAPM runs during card startup. | |
2156 | */ | |
2157 | if (!dapm->card || !dapm->card->instantiated) | |
2158 | return 0; | |
2159 | ||
3cd04343 | 2160 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
a73fb2df LG |
2161 | ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2162 | mutex_unlock(&dapm->card->dapm_mutex); | |
2163 | return ret; | |
2b97eabc | 2164 | } |
a5302181 | 2165 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2166 | |
ce6120cc | 2167 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 2168 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
2169 | { |
2170 | struct snd_soc_dapm_path *path; | |
2171 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 2172 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 2173 | const char *sink; |
215edda3 | 2174 | const char *control = route->control; |
ead9b919 JN |
2175 | const char *source; |
2176 | char prefixed_sink[80]; | |
2177 | char prefixed_source[80]; | |
2b97eabc RP |
2178 | int ret = 0; |
2179 | ||
88e8b9a8 | 2180 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
2181 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2182 | dapm->codec->name_prefix, route->sink); | |
2183 | sink = prefixed_sink; | |
2184 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2185 | dapm->codec->name_prefix, route->source); | |
2186 | source = prefixed_source; | |
2187 | } else { | |
2188 | sink = route->sink; | |
2189 | source = route->source; | |
2190 | } | |
2191 | ||
97c866de JN |
2192 | /* |
2193 | * find src and dest widgets over all widgets but favor a widget from | |
2194 | * current DAPM context | |
2195 | */ | |
2196 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 2197 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
2198 | wtsink = w; |
2199 | if (w->dapm == dapm) | |
2200 | wsink = w; | |
2b97eabc RP |
2201 | continue; |
2202 | } | |
2203 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
2204 | wtsource = w; |
2205 | if (w->dapm == dapm) | |
2206 | wsource = w; | |
2b97eabc RP |
2207 | } |
2208 | } | |
97c866de JN |
2209 | /* use widget from another DAPM context if not found from this */ |
2210 | if (!wsink) | |
2211 | wsink = wtsink; | |
2212 | if (!wsource) | |
2213 | wsource = wtsource; | |
2b97eabc RP |
2214 | |
2215 | if (wsource == NULL || wsink == NULL) | |
2216 | return -ENODEV; | |
2217 | ||
2218 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2219 | if (!path) | |
2220 | return -ENOMEM; | |
2221 | ||
2222 | path->source = wsource; | |
2223 | path->sink = wsink; | |
215edda3 | 2224 | path->connected = route->connected; |
2b97eabc RP |
2225 | INIT_LIST_HEAD(&path->list); |
2226 | INIT_LIST_HEAD(&path->list_source); | |
2227 | INIT_LIST_HEAD(&path->list_sink); | |
2228 | ||
2229 | /* check for external widgets */ | |
2230 | if (wsink->id == snd_soc_dapm_input) { | |
2231 | if (wsource->id == snd_soc_dapm_micbias || | |
2232 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2233 | wsource->id == snd_soc_dapm_line || |
2234 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2235 | wsink->ext = 1; |
2236 | } | |
2237 | if (wsource->id == snd_soc_dapm_output) { | |
2238 | if (wsink->id == snd_soc_dapm_spk || | |
2239 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2240 | wsink->id == snd_soc_dapm_line || |
2241 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2242 | wsource->ext = 1; |
2243 | } | |
2244 | ||
2245 | /* connect static paths */ | |
2246 | if (control == NULL) { | |
8ddab3f5 | 2247 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2248 | list_add(&path->list_sink, &wsink->sources); |
2249 | list_add(&path->list_source, &wsource->sinks); | |
2250 | path->connect = 1; | |
2251 | return 0; | |
2252 | } | |
2253 | ||
2254 | /* connect dynamic paths */ | |
dc2bea61 | 2255 | switch (wsink->id) { |
2b97eabc RP |
2256 | case snd_soc_dapm_adc: |
2257 | case snd_soc_dapm_dac: | |
2258 | case snd_soc_dapm_pga: | |
d88429a6 | 2259 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2260 | case snd_soc_dapm_input: |
2261 | case snd_soc_dapm_output: | |
1ab97c8c | 2262 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2263 | case snd_soc_dapm_micbias: |
2264 | case snd_soc_dapm_vmid: | |
2265 | case snd_soc_dapm_pre: | |
2266 | case snd_soc_dapm_post: | |
246d0a17 | 2267 | case snd_soc_dapm_supply: |
62ea874a | 2268 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2269 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2270 | case snd_soc_dapm_aif_in: |
2271 | case snd_soc_dapm_aif_out: | |
888df395 | 2272 | case snd_soc_dapm_dai: |
c74184ed | 2273 | case snd_soc_dapm_dai_link: |
8ddab3f5 | 2274 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2275 | list_add(&path->list_sink, &wsink->sources); |
2276 | list_add(&path->list_source, &wsource->sinks); | |
2277 | path->connect = 1; | |
2278 | return 0; | |
2279 | case snd_soc_dapm_mux: | |
24ff33ac | 2280 | case snd_soc_dapm_virt_mux: |
74155556 | 2281 | case snd_soc_dapm_value_mux: |
ce6120cc | 2282 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2283 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2284 | if (ret != 0) |
2285 | goto err; | |
2286 | break; | |
2287 | case snd_soc_dapm_switch: | |
2288 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2289 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2290 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2291 | if (ret != 0) |
2292 | goto err; | |
2293 | break; | |
2294 | case snd_soc_dapm_hp: | |
2295 | case snd_soc_dapm_mic: | |
2296 | case snd_soc_dapm_line: | |
2297 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2298 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2299 | list_add(&path->list_sink, &wsink->sources); |
2300 | list_add(&path->list_source, &wsource->sinks); | |
2301 | path->connect = 0; | |
2302 | return 0; | |
2303 | } | |
fabd0384 MB |
2304 | |
2305 | dapm_mark_dirty(wsource, "Route added"); | |
2306 | dapm_mark_dirty(wsink, "Route added"); | |
2307 | ||
2b97eabc RP |
2308 | return 0; |
2309 | ||
2310 | err: | |
f7d41ae8 JN |
2311 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
2312 | source, control, sink); | |
2b97eabc RP |
2313 | kfree(path); |
2314 | return ret; | |
2315 | } | |
105f1c28 | 2316 | |
efcc3c61 MB |
2317 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2318 | const struct snd_soc_dapm_route *route) | |
2319 | { | |
2320 | struct snd_soc_dapm_path *path, *p; | |
2321 | const char *sink; | |
2322 | const char *source; | |
2323 | char prefixed_sink[80]; | |
2324 | char prefixed_source[80]; | |
2325 | ||
2326 | if (route->control) { | |
2327 | dev_err(dapm->dev, | |
2328 | "Removal of routes with controls not supported\n"); | |
2329 | return -EINVAL; | |
2330 | } | |
2331 | ||
2332 | if (dapm->codec && dapm->codec->name_prefix) { | |
2333 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2334 | dapm->codec->name_prefix, route->sink); | |
2335 | sink = prefixed_sink; | |
2336 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2337 | dapm->codec->name_prefix, route->source); | |
2338 | source = prefixed_source; | |
2339 | } else { | |
2340 | sink = route->sink; | |
2341 | source = route->source; | |
2342 | } | |
2343 | ||
2344 | path = NULL; | |
2345 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2346 | if (strcmp(p->source->name, source) != 0) | |
2347 | continue; | |
2348 | if (strcmp(p->sink->name, sink) != 0) | |
2349 | continue; | |
2350 | path = p; | |
2351 | break; | |
2352 | } | |
2353 | ||
2354 | if (path) { | |
2355 | dapm_mark_dirty(path->source, "Route removed"); | |
2356 | dapm_mark_dirty(path->sink, "Route removed"); | |
2357 | ||
2358 | list_del(&path->list); | |
2359 | list_del(&path->list_sink); | |
2360 | list_del(&path->list_source); | |
2361 | kfree(path); | |
2362 | } else { | |
2363 | dev_warn(dapm->dev, "Route %s->%s does not exist\n", | |
2364 | source, sink); | |
2365 | } | |
2366 | ||
2367 | return 0; | |
2368 | } | |
2369 | ||
105f1c28 MB |
2370 | /** |
2371 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2372 | * @dapm: DAPM context |
105f1c28 MB |
2373 | * @route: audio routes |
2374 | * @num: number of routes | |
2375 | * | |
2376 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2377 | * the widget receiving the audio signal, whilst the source is the sender | |
2378 | * of the audio signal. | |
2379 | * | |
2380 | * Returns 0 for success else error. On error all resources can be freed | |
2381 | * with a call to snd_soc_card_free(). | |
2382 | */ | |
ce6120cc | 2383 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2384 | const struct snd_soc_dapm_route *route, int num) |
2385 | { | |
62d4a4b9 | 2386 | int i, r, ret = 0; |
105f1c28 | 2387 | |
a73fb2df | 2388 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2389 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2390 | r = snd_soc_dapm_add_route(dapm, route); |
2391 | if (r < 0) { | |
f7d41ae8 JN |
2392 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
2393 | route->source, route->sink); | |
62d4a4b9 | 2394 | ret = r; |
105f1c28 MB |
2395 | } |
2396 | route++; | |
2397 | } | |
a73fb2df | 2398 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2399 | |
60884c27 | 2400 | return ret; |
105f1c28 MB |
2401 | } |
2402 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2403 | ||
efcc3c61 MB |
2404 | /** |
2405 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2406 | * @dapm: DAPM context | |
2407 | * @route: audio routes | |
2408 | * @num: number of routes | |
2409 | * | |
2410 | * Removes routes from the DAPM context. | |
2411 | */ | |
2412 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2413 | const struct snd_soc_dapm_route *route, int num) | |
2414 | { | |
2415 | int i, ret = 0; | |
2416 | ||
2417 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2418 | for (i = 0; i < num; i++) { | |
2419 | snd_soc_dapm_del_route(dapm, route); | |
2420 | route++; | |
2421 | } | |
2422 | mutex_unlock(&dapm->card->dapm_mutex); | |
2423 | ||
2424 | return ret; | |
2425 | } | |
2426 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2427 | ||
bf3a9e13 MB |
2428 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2429 | const struct snd_soc_dapm_route *route) | |
2430 | { | |
2431 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2432 | route->source, | |
2433 | true); | |
2434 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2435 | route->sink, | |
2436 | true); | |
2437 | struct snd_soc_dapm_path *path; | |
2438 | int count = 0; | |
2439 | ||
2440 | if (!source) { | |
2441 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
2442 | route->source); | |
2443 | return -ENODEV; | |
2444 | } | |
2445 | ||
2446 | if (!sink) { | |
2447 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
2448 | route->sink); | |
2449 | return -ENODEV; | |
2450 | } | |
2451 | ||
2452 | if (route->control || route->connected) | |
2453 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
2454 | route->source, route->sink); | |
2455 | ||
2456 | list_for_each_entry(path, &source->sinks, list_source) { | |
2457 | if (path->sink == sink) { | |
2458 | path->weak = 1; | |
2459 | count++; | |
2460 | } | |
2461 | } | |
2462 | ||
2463 | if (count == 0) | |
2464 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
2465 | route->source, route->sink); | |
2466 | if (count > 1) | |
2467 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
2468 | count, route->source, route->sink); | |
2469 | ||
2470 | return 0; | |
2471 | } | |
2472 | ||
2473 | /** | |
2474 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2475 | * @dapm: DAPM context | |
2476 | * @route: audio routes | |
2477 | * @num: number of routes | |
2478 | * | |
2479 | * Mark existing routes matching those specified in the passed array | |
2480 | * as being weak, meaning that they are ignored for the purpose of | |
2481 | * power decisions. The main intended use case is for sidetone paths | |
2482 | * which couple audio between other independent paths if they are both | |
2483 | * active in order to make the combination work better at the user | |
2484 | * level but which aren't intended to be "used". | |
2485 | * | |
2486 | * Note that CODEC drivers should not use this as sidetone type paths | |
2487 | * can frequently also be used as bypass paths. | |
2488 | */ | |
2489 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2490 | const struct snd_soc_dapm_route *route, int num) | |
2491 | { | |
2492 | int i, err; | |
2493 | int ret = 0; | |
2494 | ||
a73fb2df | 2495 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2496 | for (i = 0; i < num; i++) { |
2497 | err = snd_soc_dapm_weak_route(dapm, route); | |
2498 | if (err) | |
2499 | ret = err; | |
2500 | route++; | |
2501 | } | |
a73fb2df | 2502 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2503 | |
2504 | return ret; | |
2505 | } | |
2506 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2507 | ||
2b97eabc RP |
2508 | /** |
2509 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2510 | * @dapm: DAPM context |
2b97eabc RP |
2511 | * |
2512 | * Checks the codec for any new dapm widgets and creates them if found. | |
2513 | * | |
2514 | * Returns 0 for success. | |
2515 | */ | |
ce6120cc | 2516 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2517 | { |
2518 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2519 | unsigned int val; |
2b97eabc | 2520 | |
a73fb2df LG |
2521 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
2522 | ||
97c866de | 2523 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2524 | { |
2525 | if (w->new) | |
2526 | continue; | |
2527 | ||
fad59888 SW |
2528 | if (w->num_kcontrols) { |
2529 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2530 | sizeof(struct snd_kcontrol *), | |
2531 | GFP_KERNEL); | |
a73fb2df LG |
2532 | if (!w->kcontrols) { |
2533 | mutex_unlock(&dapm->card->dapm_mutex); | |
fad59888 | 2534 | return -ENOMEM; |
a73fb2df | 2535 | } |
fad59888 SW |
2536 | } |
2537 | ||
2b97eabc RP |
2538 | switch(w->id) { |
2539 | case snd_soc_dapm_switch: | |
2540 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2541 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2542 | dapm_new_mixer(w); |
2b97eabc RP |
2543 | break; |
2544 | case snd_soc_dapm_mux: | |
24ff33ac | 2545 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2546 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2547 | dapm_new_mux(w); |
2b97eabc | 2548 | break; |
2b97eabc | 2549 | case snd_soc_dapm_pga: |
d88429a6 | 2550 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2551 | dapm_new_pga(w); |
2b97eabc | 2552 | break; |
7ca3a18b | 2553 | default: |
2b97eabc RP |
2554 | break; |
2555 | } | |
b66a70d5 MB |
2556 | |
2557 | /* Read the initial power state from the device */ | |
2558 | if (w->reg >= 0) { | |
0445bdf4 | 2559 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2560 | val &= 1 << w->shift; |
2561 | if (w->invert) | |
2562 | val = !val; | |
2563 | ||
2564 | if (val) | |
2565 | w->power = 1; | |
2566 | } | |
2567 | ||
2b97eabc | 2568 | w->new = 1; |
d5d1e0be | 2569 | |
7508b12a | 2570 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2571 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2572 | } |
2573 | ||
ce6120cc | 2574 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df | 2575 | mutex_unlock(&dapm->card->dapm_mutex); |
2b97eabc RP |
2576 | return 0; |
2577 | } | |
2578 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2579 | ||
2580 | /** | |
2581 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2582 | * @kcontrol: mixer control | |
ac11a2b3 | 2583 | * @ucontrol: control element information |
2b97eabc RP |
2584 | * |
2585 | * Callback to get the value of a dapm mixer control. | |
2586 | * | |
2587 | * Returns 0 for success. | |
2588 | */ | |
2589 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2590 | struct snd_ctl_elem_value *ucontrol) | |
2591 | { | |
fafd2176 SW |
2592 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2593 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2594 | struct soc_mixer_control *mc = |
2595 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2596 | unsigned int reg = mc->reg; |
2597 | unsigned int shift = mc->shift; | |
4eaa9819 | 2598 | int max = mc->max; |
815ecf8d | 2599 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 BT |
2600 | unsigned int invert = mc->invert; |
2601 | ||
2602 | if (snd_soc_volsw_is_stereo(mc)) | |
2603 | dev_warn(widget->dapm->dev, | |
2604 | "Control '%s' is stereo, which is not supported\n", | |
2605 | kcontrol->id.name); | |
2b97eabc | 2606 | |
2b97eabc RP |
2607 | ucontrol->value.integer.value[0] = |
2608 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
da602ab8 | 2609 | if (invert) |
2b97eabc | 2610 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2611 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2612 | |
2613 | return 0; | |
2614 | } | |
2615 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2616 | ||
2617 | /** | |
2618 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2619 | * @kcontrol: mixer control | |
ac11a2b3 | 2620 | * @ucontrol: control element information |
2b97eabc RP |
2621 | * |
2622 | * Callback to set the value of a dapm mixer control. | |
2623 | * | |
2624 | * Returns 0 for success. | |
2625 | */ | |
2626 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2627 | struct snd_ctl_elem_value *ucontrol) | |
2628 | { | |
fafd2176 SW |
2629 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2630 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2631 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2632 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2633 | struct soc_mixer_control *mc = |
2634 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2635 | unsigned int reg = mc->reg; |
2636 | unsigned int shift = mc->shift; | |
4eaa9819 | 2637 | int max = mc->max; |
815ecf8d JS |
2638 | unsigned int mask = (1 << fls(max)) - 1; |
2639 | unsigned int invert = mc->invert; | |
e9cf7049 | 2640 | unsigned int val; |
97404f2e MB |
2641 | int connect, change; |
2642 | struct snd_soc_dapm_update update; | |
fafd2176 | 2643 | int wi; |
2b97eabc | 2644 | |
da602ab8 BT |
2645 | if (snd_soc_volsw_is_stereo(mc)) |
2646 | dev_warn(widget->dapm->dev, | |
2647 | "Control '%s' is stereo, which is not supported\n", | |
2648 | kcontrol->id.name); | |
2649 | ||
2b97eabc | 2650 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2651 | connect = !!val; |
2b97eabc RP |
2652 | |
2653 | if (invert) | |
a7a4ac86 | 2654 | val = max - val; |
e9cf7049 | 2655 | mask = mask << shift; |
2b97eabc | 2656 | val = val << shift; |
2b97eabc | 2657 | |
3cd04343 | 2658 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2659 | |
e9cf7049 | 2660 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2661 | if (change) { |
fafd2176 SW |
2662 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2663 | widget = wlist->widgets[wi]; | |
283375ce | 2664 | |
fafd2176 | 2665 | widget->value = val; |
97404f2e | 2666 | |
fafd2176 SW |
2667 | update.kcontrol = kcontrol; |
2668 | update.widget = widget; | |
2669 | update.reg = reg; | |
2670 | update.mask = mask; | |
2671 | update.val = val; | |
2672 | widget->dapm->update = &update; | |
97404f2e | 2673 | |
4edbb345 | 2674 | soc_dapm_mixer_update_power(widget, kcontrol, connect); |
fafd2176 SW |
2675 | |
2676 | widget->dapm->update = NULL; | |
2677 | } | |
283375ce MB |
2678 | } |
2679 | ||
a73fb2df | 2680 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2681 | return 0; |
2b97eabc RP |
2682 | } |
2683 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2684 | ||
2685 | /** | |
2686 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2687 | * @kcontrol: mixer control | |
ac11a2b3 | 2688 | * @ucontrol: control element information |
2b97eabc RP |
2689 | * |
2690 | * Callback to get the value of a dapm enumerated double mixer control. | |
2691 | * | |
2692 | * Returns 0 for success. | |
2693 | */ | |
2694 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2695 | struct snd_ctl_elem_value *ucontrol) | |
2696 | { | |
fafd2176 SW |
2697 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2698 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2699 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2700 | unsigned int val; |
2b97eabc | 2701 | |
2b97eabc | 2702 | val = snd_soc_read(widget->codec, e->reg); |
86767b7d | 2703 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2704 | if (e->shift_l != e->shift_r) |
2705 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2706 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2707 | |
2708 | return 0; | |
2709 | } | |
2710 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2711 | ||
2712 | /** | |
2713 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2714 | * @kcontrol: mixer control | |
ac11a2b3 | 2715 | * @ucontrol: control element information |
2b97eabc RP |
2716 | * |
2717 | * Callback to set the value of a dapm enumerated double mixer control. | |
2718 | * | |
2719 | * Returns 0 for success. | |
2720 | */ | |
2721 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2722 | struct snd_ctl_elem_value *ucontrol) | |
2723 | { | |
fafd2176 SW |
2724 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2725 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2726 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2727 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2728 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2729 | unsigned int val, mux, change; |
86767b7d | 2730 | unsigned int mask; |
97404f2e | 2731 | struct snd_soc_dapm_update update; |
fafd2176 | 2732 | int wi; |
2b97eabc | 2733 | |
f8ba0b7b | 2734 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2735 | return -EINVAL; |
2736 | mux = ucontrol->value.enumerated.item[0]; | |
2737 | val = mux << e->shift_l; | |
86767b7d | 2738 | mask = e->mask << e->shift_l; |
2b97eabc | 2739 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2740 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2741 | return -EINVAL; |
2742 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2743 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2744 | } |
2745 | ||
3cd04343 | 2746 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2747 | |
3a65577d | 2748 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2749 | if (change) { |
2750 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2751 | widget = wlist->widgets[wi]; | |
2752 | ||
2753 | widget->value = val; | |
1642e3d4 | 2754 | |
fafd2176 SW |
2755 | update.kcontrol = kcontrol; |
2756 | update.widget = widget; | |
2757 | update.reg = e->reg; | |
2758 | update.mask = mask; | |
2759 | update.val = val; | |
2760 | widget->dapm->update = &update; | |
1642e3d4 | 2761 | |
4edbb345 | 2762 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1642e3d4 | 2763 | |
fafd2176 SW |
2764 | widget->dapm->update = NULL; |
2765 | } | |
2766 | } | |
2b97eabc | 2767 | |
a73fb2df | 2768 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2769 | return change; |
2b97eabc RP |
2770 | } |
2771 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2772 | ||
d2b247a8 MB |
2773 | /** |
2774 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2775 | * @kcontrol: mixer control | |
2776 | * @ucontrol: control element information | |
2777 | * | |
2778 | * Returns 0 for success. | |
2779 | */ | |
2780 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2781 | struct snd_ctl_elem_value *ucontrol) | |
2782 | { | |
fafd2176 SW |
2783 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2784 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2785 | |
2786 | ucontrol->value.enumerated.item[0] = widget->value; | |
2787 | ||
2788 | return 0; | |
2789 | } | |
2790 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2791 | ||
2792 | /** | |
2793 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2794 | * @kcontrol: mixer control | |
2795 | * @ucontrol: control element information | |
2796 | * | |
2797 | * Returns 0 for success. | |
2798 | */ | |
2799 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2800 | struct snd_ctl_elem_value *ucontrol) | |
2801 | { | |
fafd2176 SW |
2802 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2803 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2804 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2805 | struct snd_soc_card *card = codec->card; |
d2b247a8 MB |
2806 | struct soc_enum *e = |
2807 | (struct soc_enum *)kcontrol->private_value; | |
2808 | int change; | |
2809 | int ret = 0; | |
fafd2176 | 2810 | int wi; |
d2b247a8 MB |
2811 | |
2812 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2813 | return -EINVAL; | |
2814 | ||
3cd04343 | 2815 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 MB |
2816 | |
2817 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2818 | if (change) { |
2819 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2820 | widget = wlist->widgets[wi]; | |
2821 | ||
2822 | widget->value = ucontrol->value.enumerated.item[0]; | |
2823 | ||
4edbb345 | 2824 | soc_dapm_mux_update_power(widget, kcontrol, widget->value, e); |
fafd2176 SW |
2825 | } |
2826 | } | |
d2b247a8 | 2827 | |
a73fb2df | 2828 | mutex_unlock(&card->dapm_mutex); |
d2b247a8 MB |
2829 | return ret; |
2830 | } | |
2831 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2832 | ||
2e72f8e3 PU |
2833 | /** |
2834 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2835 | * callback | |
2836 | * @kcontrol: mixer control | |
2837 | * @ucontrol: control element information | |
2838 | * | |
2839 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2840 | * | |
2841 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2842 | * used for handling bitfield coded enumeration for example. | |
2843 | * | |
2844 | * Returns 0 for success. | |
2845 | */ | |
2846 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2847 | struct snd_ctl_elem_value *ucontrol) | |
2848 | { | |
fafd2176 SW |
2849 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2850 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2851 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2852 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2853 | |
2854 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2855 | val = (reg_val >> e->shift_l) & e->mask; | |
2856 | for (mux = 0; mux < e->max; mux++) { | |
2857 | if (val == e->values[mux]) | |
2858 | break; | |
2859 | } | |
2860 | ucontrol->value.enumerated.item[0] = mux; | |
2861 | if (e->shift_l != e->shift_r) { | |
2862 | val = (reg_val >> e->shift_r) & e->mask; | |
2863 | for (mux = 0; mux < e->max; mux++) { | |
2864 | if (val == e->values[mux]) | |
2865 | break; | |
2866 | } | |
2867 | ucontrol->value.enumerated.item[1] = mux; | |
2868 | } | |
2869 | ||
2870 | return 0; | |
2871 | } | |
2872 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2873 | ||
2874 | /** | |
2875 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2876 | * callback | |
2877 | * @kcontrol: mixer control | |
2878 | * @ucontrol: control element information | |
2879 | * | |
2880 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2881 | * | |
2882 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2883 | * used for handling bitfield coded enumeration for example. | |
2884 | * | |
2885 | * Returns 0 for success. | |
2886 | */ | |
2887 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2888 | struct snd_ctl_elem_value *ucontrol) | |
2889 | { | |
fafd2176 SW |
2890 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2891 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2892 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2893 | struct snd_soc_card *card = codec->card; |
74155556 | 2894 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2895 | unsigned int val, mux, change; |
46f5822f | 2896 | unsigned int mask; |
97404f2e | 2897 | struct snd_soc_dapm_update update; |
fafd2176 | 2898 | int wi; |
2e72f8e3 PU |
2899 | |
2900 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2901 | return -EINVAL; | |
2902 | mux = ucontrol->value.enumerated.item[0]; | |
2903 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2904 | mask = e->mask << e->shift_l; | |
2905 | if (e->shift_l != e->shift_r) { | |
2906 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2907 | return -EINVAL; | |
2908 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2909 | mask |= e->mask << e->shift_r; | |
2910 | } | |
2911 | ||
3cd04343 | 2912 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2913 | |
3a65577d | 2914 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2915 | if (change) { |
2916 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2917 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2918 | |
fafd2176 | 2919 | widget->value = val; |
1642e3d4 | 2920 | |
fafd2176 SW |
2921 | update.kcontrol = kcontrol; |
2922 | update.widget = widget; | |
2923 | update.reg = e->reg; | |
2924 | update.mask = mask; | |
2925 | update.val = val; | |
2926 | widget->dapm->update = &update; | |
1642e3d4 | 2927 | |
4edbb345 | 2928 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
fafd2176 SW |
2929 | |
2930 | widget->dapm->update = NULL; | |
2931 | } | |
2932 | } | |
2e72f8e3 | 2933 | |
a73fb2df | 2934 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2935 | return change; |
2e72f8e3 PU |
2936 | } |
2937 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2938 | ||
8b37dbd2 MB |
2939 | /** |
2940 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2941 | * | |
2942 | * @kcontrol: mixer control | |
2943 | * @uinfo: control element information | |
2944 | * | |
2945 | * Callback to provide information about a pin switch control. | |
2946 | */ | |
2947 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2948 | struct snd_ctl_elem_info *uinfo) | |
2949 | { | |
2950 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2951 | uinfo->count = 1; | |
2952 | uinfo->value.integer.min = 0; | |
2953 | uinfo->value.integer.max = 1; | |
2954 | ||
2955 | return 0; | |
2956 | } | |
2957 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2958 | ||
2959 | /** | |
2960 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2961 | * | |
2962 | * @kcontrol: mixer control | |
2963 | * @ucontrol: Value | |
2964 | */ | |
2965 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2966 | struct snd_ctl_elem_value *ucontrol) | |
2967 | { | |
48a8c394 | 2968 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2969 | const char *pin = (const char *)kcontrol->private_value; |
2970 | ||
3cd04343 | 2971 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2972 | |
2973 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2974 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2975 | |
a73fb2df | 2976 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
2977 | |
2978 | return 0; | |
2979 | } | |
2980 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2981 | ||
2982 | /** | |
2983 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2984 | * | |
2985 | * @kcontrol: mixer control | |
2986 | * @ucontrol: Value | |
2987 | */ | |
2988 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2989 | struct snd_ctl_elem_value *ucontrol) | |
2990 | { | |
48a8c394 | 2991 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2992 | const char *pin = (const char *)kcontrol->private_value; |
2993 | ||
3cd04343 | 2994 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2995 | |
2996 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 2997 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 2998 | else |
48a8c394 | 2999 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3000 | |
a73fb2df | 3001 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3002 | |
a73fb2df | 3003 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3004 | return 0; |
3005 | } | |
3006 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3007 | ||
5ba06fc9 MB |
3008 | static struct snd_soc_dapm_widget * |
3009 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3010 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3011 | { |
3012 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 3013 | size_t name_len; |
62ea874a | 3014 | int ret; |
2b97eabc RP |
3015 | |
3016 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3017 | return NULL; |
2b97eabc | 3018 | |
62ea874a MB |
3019 | switch (w->id) { |
3020 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3021 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3022 | if (IS_ERR(w->regulator)) { | |
3023 | ret = PTR_ERR(w->regulator); | |
62ea874a MB |
3024 | dev_err(dapm->dev, "Failed to request %s: %d\n", |
3025 | w->name, ret); | |
5ba06fc9 | 3026 | return NULL; |
62ea874a MB |
3027 | } |
3028 | break; | |
d7e7eb91 | 3029 | case snd_soc_dapm_clock_supply: |
165961ef | 3030 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3031 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3032 | if (IS_ERR(w->clk)) { |
3033 | ret = PTR_ERR(w->clk); | |
3034 | dev_err(dapm->dev, "Failed to request %s: %d\n", | |
3035 | w->name, ret); | |
3036 | return NULL; | |
3037 | } | |
ec02995a MB |
3038 | #else |
3039 | return NULL; | |
3040 | #endif | |
d7e7eb91 | 3041 | break; |
62ea874a MB |
3042 | default: |
3043 | break; | |
3044 | } | |
2b97eabc | 3045 | |
ead9b919 | 3046 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 3047 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
3048 | name_len += 1 + strlen(dapm->codec->name_prefix); |
3049 | w->name = kmalloc(name_len, GFP_KERNEL); | |
3050 | if (w->name == NULL) { | |
3051 | kfree(w); | |
5ba06fc9 | 3052 | return NULL; |
ead9b919 | 3053 | } |
88e8b9a8 | 3054 | if (dapm->codec && dapm->codec->name_prefix) |
888df395 | 3055 | snprintf((char *)w->name, name_len, "%s %s", |
ead9b919 JN |
3056 | dapm->codec->name_prefix, widget->name); |
3057 | else | |
888df395 | 3058 | snprintf((char *)w->name, name_len, "%s", widget->name); |
ead9b919 | 3059 | |
7ca3a18b MB |
3060 | switch (w->id) { |
3061 | case snd_soc_dapm_switch: | |
3062 | case snd_soc_dapm_mixer: | |
3063 | case snd_soc_dapm_mixer_named_ctl: | |
3064 | w->power_check = dapm_generic_check_power; | |
3065 | break; | |
3066 | case snd_soc_dapm_mux: | |
3067 | case snd_soc_dapm_virt_mux: | |
3068 | case snd_soc_dapm_value_mux: | |
3069 | w->power_check = dapm_generic_check_power; | |
3070 | break; | |
3071 | case snd_soc_dapm_adc: | |
3072 | case snd_soc_dapm_aif_out: | |
3073 | w->power_check = dapm_adc_check_power; | |
3074 | break; | |
3075 | case snd_soc_dapm_dac: | |
3076 | case snd_soc_dapm_aif_in: | |
3077 | w->power_check = dapm_dac_check_power; | |
3078 | break; | |
3079 | case snd_soc_dapm_pga: | |
3080 | case snd_soc_dapm_out_drv: | |
3081 | case snd_soc_dapm_input: | |
3082 | case snd_soc_dapm_output: | |
3083 | case snd_soc_dapm_micbias: | |
3084 | case snd_soc_dapm_spk: | |
3085 | case snd_soc_dapm_hp: | |
3086 | case snd_soc_dapm_mic: | |
3087 | case snd_soc_dapm_line: | |
c74184ed | 3088 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3089 | w->power_check = dapm_generic_check_power; |
3090 | break; | |
3091 | case snd_soc_dapm_supply: | |
62ea874a | 3092 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3093 | case snd_soc_dapm_clock_supply: |
7ca3a18b MB |
3094 | w->power_check = dapm_supply_check_power; |
3095 | break; | |
888df395 MB |
3096 | case snd_soc_dapm_dai: |
3097 | w->power_check = dapm_dai_check_power; | |
3098 | break; | |
7ca3a18b MB |
3099 | default: |
3100 | w->power_check = dapm_always_on_check_power; | |
3101 | break; | |
3102 | } | |
3103 | ||
97c866de | 3104 | dapm->n_widgets++; |
ce6120cc LG |
3105 | w->dapm = dapm; |
3106 | w->codec = dapm->codec; | |
b7950641 | 3107 | w->platform = dapm->platform; |
2b97eabc RP |
3108 | INIT_LIST_HEAD(&w->sources); |
3109 | INIT_LIST_HEAD(&w->sinks); | |
3110 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3111 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3112 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3113 | |
3114 | /* machine layer set ups unconnected pins and insertions */ | |
3115 | w->connected = 1; | |
5ba06fc9 | 3116 | return w; |
2b97eabc | 3117 | } |
2b97eabc | 3118 | |
4ba1327a MB |
3119 | /** |
3120 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3121 | * @dapm: DAPM context |
4ba1327a MB |
3122 | * @widget: widget array |
3123 | * @num: number of widgets | |
3124 | * | |
3125 | * Creates new DAPM controls based upon the templates. | |
3126 | * | |
3127 | * Returns 0 for success else error. | |
3128 | */ | |
ce6120cc | 3129 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3130 | const struct snd_soc_dapm_widget *widget, |
3131 | int num) | |
3132 | { | |
5ba06fc9 MB |
3133 | struct snd_soc_dapm_widget *w; |
3134 | int i; | |
60884c27 | 3135 | int ret = 0; |
4ba1327a | 3136 | |
a73fb2df | 3137 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3138 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3139 | w = snd_soc_dapm_new_control(dapm, widget); |
3140 | if (!w) { | |
f7d41ae8 | 3141 | dev_err(dapm->dev, |
5ba06fc9 MB |
3142 | "ASoC: Failed to create DAPM control %s\n", |
3143 | widget->name); | |
60884c27 DC |
3144 | ret = -ENOMEM; |
3145 | break; | |
b8b33cb5 | 3146 | } |
4ba1327a MB |
3147 | widget++; |
3148 | } | |
a73fb2df | 3149 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3150 | return ret; |
4ba1327a MB |
3151 | } |
3152 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3153 | ||
c74184ed MB |
3154 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3155 | struct snd_kcontrol *kcontrol, int event) | |
3156 | { | |
3157 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3158 | struct snd_soc_dai *source, *sink; | |
3159 | const struct snd_soc_pcm_stream *config = w->params; | |
3160 | struct snd_pcm_substream substream; | |
9747cec2 | 3161 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3162 | u64 fmt; |
3163 | int ret; | |
3164 | ||
3165 | BUG_ON(!config); | |
3166 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3167 | ||
3168 | /* We only support a single source and sink, pick the first */ | |
3169 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3170 | list_sink); | |
3171 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3172 | list_source); | |
3173 | ||
3174 | BUG_ON(!source_p || !sink_p); | |
3175 | BUG_ON(!sink_p->source || !source_p->sink); | |
3176 | BUG_ON(!source_p->source || !sink_p->sink); | |
3177 | ||
3178 | source = source_p->source->priv; | |
3179 | sink = sink_p->sink->priv; | |
3180 | ||
3181 | /* Be a little careful as we don't want to overflow the mask array */ | |
3182 | if (config->formats) { | |
3183 | fmt = ffs(config->formats) - 1; | |
3184 | } else { | |
516541a0 | 3185 | dev_warn(w->dapm->dev, "Invalid format %llx specified\n", |
c74184ed MB |
3186 | config->formats); |
3187 | fmt = 0; | |
3188 | } | |
3189 | ||
3190 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3191 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3192 | if (!params) { | |
3193 | ret = -ENOMEM; | |
3194 | goto out; | |
3195 | } | |
3196 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3197 | |
9747cec2 | 3198 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3199 | config->rate_min; |
9747cec2 | 3200 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3201 | config->rate_max; |
3202 | ||
9747cec2 | 3203 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3204 | = config->channels_min; |
9747cec2 | 3205 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3206 | = config->channels_max; |
3207 | ||
3208 | memset(&substream, 0, sizeof(substream)); | |
3209 | ||
3210 | switch (event) { | |
3211 | case SND_SOC_DAPM_PRE_PMU: | |
3212 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3213 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3214 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3215 | params, source); |
c74184ed MB |
3216 | if (ret != 0) { |
3217 | dev_err(source->dev, | |
3218 | "hw_params() failed: %d\n", ret); | |
9747cec2 | 3219 | goto out; |
c74184ed MB |
3220 | } |
3221 | } | |
3222 | ||
3223 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3224 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3225 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3226 | sink); |
3227 | if (ret != 0) { | |
3228 | dev_err(sink->dev, | |
3229 | "hw_params() failed: %d\n", ret); | |
9747cec2 | 3230 | goto out; |
c74184ed MB |
3231 | } |
3232 | } | |
3233 | break; | |
3234 | ||
3235 | case SND_SOC_DAPM_POST_PMU: | |
3236 | ret = snd_soc_dai_digital_mute(sink, 0); | |
3237 | if (ret != 0 && ret != -ENOTSUPP) | |
3238 | dev_warn(sink->dev, "Failed to unmute: %d\n", ret); | |
9747cec2 | 3239 | ret = 0; |
c74184ed MB |
3240 | break; |
3241 | ||
3242 | case SND_SOC_DAPM_PRE_PMD: | |
3243 | ret = snd_soc_dai_digital_mute(sink, 1); | |
3244 | if (ret != 0 && ret != -ENOTSUPP) | |
3245 | dev_warn(sink->dev, "Failed to mute: %d\n", ret); | |
9747cec2 | 3246 | ret = 0; |
c74184ed MB |
3247 | break; |
3248 | ||
3249 | default: | |
3250 | BUG(); | |
3251 | return -EINVAL; | |
3252 | } | |
3253 | ||
9747cec2 MB |
3254 | out: |
3255 | kfree(params); | |
3256 | return ret; | |
c74184ed MB |
3257 | } |
3258 | ||
3259 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3260 | const struct snd_soc_pcm_stream *params, | |
3261 | struct snd_soc_dapm_widget *source, | |
3262 | struct snd_soc_dapm_widget *sink) | |
3263 | { | |
3264 | struct snd_soc_dapm_route routes[2]; | |
3265 | struct snd_soc_dapm_widget template; | |
3266 | struct snd_soc_dapm_widget *w; | |
3267 | size_t len; | |
3268 | char *link_name; | |
3269 | ||
3270 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3271 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3272 | if (!link_name) | |
3273 | return -ENOMEM; | |
3274 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3275 | ||
3276 | memset(&template, 0, sizeof(template)); | |
3277 | template.reg = SND_SOC_NOPM; | |
3278 | template.id = snd_soc_dapm_dai_link; | |
3279 | template.name = link_name; | |
3280 | template.event = snd_soc_dai_link_event; | |
3281 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3282 | SND_SOC_DAPM_PRE_PMD; | |
3283 | ||
3284 | dev_dbg(card->dev, "adding %s widget\n", link_name); | |
3285 | ||
3286 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3287 | if (!w) { | |
3288 | dev_err(card->dev, "Failed to create %s widget\n", | |
3289 | link_name); | |
3290 | return -ENOMEM; | |
3291 | } | |
3292 | ||
3293 | w->params = params; | |
3294 | ||
3295 | memset(&routes, 0, sizeof(routes)); | |
3296 | ||
3297 | routes[0].source = source->name; | |
3298 | routes[0].sink = link_name; | |
3299 | routes[1].source = link_name; | |
3300 | routes[1].sink = sink->name; | |
3301 | ||
3302 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3303 | ARRAY_SIZE(routes)); | |
3304 | } | |
3305 | ||
888df395 MB |
3306 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3307 | struct snd_soc_dai *dai) | |
2b97eabc | 3308 | { |
888df395 | 3309 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3310 | struct snd_soc_dapm_widget *w; |
3311 | ||
888df395 MB |
3312 | WARN_ON(dapm->dev != dai->dev); |
3313 | ||
3314 | memset(&template, 0, sizeof(template)); | |
3315 | template.reg = SND_SOC_NOPM; | |
3316 | ||
3317 | if (dai->driver->playback.stream_name) { | |
3318 | template.id = snd_soc_dapm_dai; | |
3319 | template.name = dai->driver->playback.stream_name; | |
3320 | template.sname = dai->driver->playback.stream_name; | |
3321 | ||
3322 | dev_dbg(dai->dev, "adding %s widget\n", | |
3323 | template.name); | |
3324 | ||
3325 | w = snd_soc_dapm_new_control(dapm, &template); | |
3326 | if (!w) { | |
3327 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
3328 | dai->driver->playback.stream_name); | |
3329 | } | |
3330 | ||
3331 | w->priv = dai; | |
3332 | dai->playback_widget = w; | |
3333 | } | |
3334 | ||
3335 | if (dai->driver->capture.stream_name) { | |
3336 | template.id = snd_soc_dapm_dai; | |
3337 | template.name = dai->driver->capture.stream_name; | |
3338 | template.sname = dai->driver->capture.stream_name; | |
3339 | ||
3340 | dev_dbg(dai->dev, "adding %s widget\n", | |
3341 | template.name); | |
3342 | ||
3343 | w = snd_soc_dapm_new_control(dapm, &template); | |
3344 | if (!w) { | |
3345 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
3346 | dai->driver->capture.stream_name); | |
3347 | } | |
3348 | ||
3349 | w->priv = dai; | |
3350 | dai->capture_widget = w; | |
3351 | } | |
3352 | ||
3353 | return 0; | |
3354 | } | |
3355 | ||
3356 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3357 | { | |
3358 | struct snd_soc_dapm_widget *dai_w, *w; | |
3359 | struct snd_soc_dai *dai; | |
3360 | struct snd_soc_dapm_route r; | |
3361 | ||
3362 | memset(&r, 0, sizeof(r)); | |
3363 | ||
3364 | /* For each DAI widget... */ | |
3365 | list_for_each_entry(dai_w, &card->widgets, list) { | |
3366 | if (dai_w->id != snd_soc_dapm_dai) | |
2b97eabc | 3367 | continue; |
888df395 MB |
3368 | |
3369 | dai = dai_w->priv; | |
3370 | ||
3371 | /* ...find all widgets with the same stream and link them */ | |
3372 | list_for_each_entry(w, &card->widgets, list) { | |
3373 | if (w->dapm != dai_w->dapm) | |
3374 | continue; | |
3375 | ||
3376 | if (w->id == snd_soc_dapm_dai) | |
3377 | continue; | |
3378 | ||
3379 | if (!w->sname) | |
3380 | continue; | |
3381 | ||
3382 | if (dai->driver->playback.stream_name && | |
3383 | strstr(w->sname, | |
3384 | dai->driver->playback.stream_name)) { | |
3385 | r.source = dai->playback_widget->name; | |
3386 | r.sink = w->name; | |
3387 | dev_dbg(dai->dev, "%s -> %s\n", | |
3388 | r.source, r.sink); | |
3389 | ||
3390 | snd_soc_dapm_add_route(w->dapm, &r); | |
3391 | } | |
3392 | ||
3393 | if (dai->driver->capture.stream_name && | |
3394 | strstr(w->sname, | |
3395 | dai->driver->capture.stream_name)) { | |
3396 | r.source = w->name; | |
3397 | r.sink = dai->capture_widget->name; | |
3398 | dev_dbg(dai->dev, "%s -> %s\n", | |
3399 | r.source, r.sink); | |
3400 | ||
3401 | snd_soc_dapm_add_route(w->dapm, &r); | |
2b97eabc RP |
3402 | } |
3403 | } | |
3404 | } | |
2b97eabc | 3405 | |
888df395 MB |
3406 | return 0; |
3407 | } | |
64a648c2 | 3408 | |
d9b0951b LG |
3409 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3410 | int event) | |
2b97eabc | 3411 | { |
7bd3a6f3 | 3412 | |
d9b0951b LG |
3413 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3414 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3415 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3416 | |
d9b0951b LG |
3417 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3418 | w_cpu = cpu_dai->playback_widget; | |
3419 | w_codec = codec_dai->playback_widget; | |
3420 | } else { | |
3421 | w_cpu = cpu_dai->capture_widget; | |
3422 | w_codec = codec_dai->capture_widget; | |
3423 | } | |
2b97eabc | 3424 | |
d9b0951b | 3425 | if (w_cpu) { |
fe360685 | 3426 | |
d9b0951b LG |
3427 | dapm_mark_dirty(w_cpu, "stream event"); |
3428 | ||
3429 | switch (event) { | |
3430 | case SND_SOC_DAPM_STREAM_START: | |
3431 | w_cpu->active = 1; | |
3432 | break; | |
3433 | case SND_SOC_DAPM_STREAM_STOP: | |
3434 | w_cpu->active = 0; | |
3435 | break; | |
3436 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3437 | case SND_SOC_DAPM_STREAM_RESUME: | |
3438 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3439 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3440 | break; | |
3441 | } | |
3442 | } | |
3443 | ||
3444 | if (w_codec) { | |
3445 | ||
3446 | dapm_mark_dirty(w_codec, "stream event"); | |
3447 | ||
3448 | switch (event) { | |
3449 | case SND_SOC_DAPM_STREAM_START: | |
3450 | w_codec->active = 1; | |
3451 | break; | |
3452 | case SND_SOC_DAPM_STREAM_STOP: | |
3453 | w_codec->active = 0; | |
3454 | break; | |
3455 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3456 | case SND_SOC_DAPM_STREAM_RESUME: | |
3457 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3458 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3459 | break; | |
3460 | } | |
2b97eabc | 3461 | } |
2b97eabc | 3462 | |
d9b0951b | 3463 | dapm_power_widgets(&rtd->card->dapm, event); |
ce6120cc LG |
3464 | } |
3465 | ||
3466 | /** | |
3467 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3468 | * @rtd: PCM runtime data | |
3469 | * @stream: stream name | |
3470 | * @event: stream event | |
3471 | * | |
3472 | * Sends a stream event to the dapm core. The core then makes any | |
3473 | * necessary widget power changes. | |
3474 | * | |
3475 | * Returns 0 for success else error. | |
3476 | */ | |
d9b0951b LG |
3477 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3478 | int event) | |
ce6120cc | 3479 | { |
a73fb2df | 3480 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3481 | |
3cd04343 | 3482 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3483 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3484 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3485 | } |
2b97eabc RP |
3486 | |
3487 | /** | |
a5302181 | 3488 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3489 | * @dapm: DAPM context |
a5302181 | 3490 | * @pin: pin name |
2b97eabc | 3491 | * |
74b8f955 | 3492 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3493 | * a valid audio route and active audio stream. |
3494 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3495 | * do any widget power switching. | |
2b97eabc | 3496 | */ |
ce6120cc | 3497 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3498 | { |
ce6120cc | 3499 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3500 | } |
3501 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3502 | |
da34183e MB |
3503 | /** |
3504 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3505 | * @dapm: DAPM context |
da34183e MB |
3506 | * @pin: pin name |
3507 | * | |
3508 | * Enables input/output pin regardless of any other state. This is | |
3509 | * intended for use with microphone bias supplies used in microphone | |
3510 | * jack detection. | |
3511 | * | |
3512 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3513 | * do any widget power switching. | |
3514 | */ | |
ce6120cc LG |
3515 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3516 | const char *pin) | |
da34183e | 3517 | { |
91a5fca4 | 3518 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3519 | |
91a5fca4 LPC |
3520 | if (!w) { |
3521 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3522 | return -EINVAL; | |
0d86733c MB |
3523 | } |
3524 | ||
91a5fca4 LPC |
3525 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
3526 | w->connected = 1; | |
3527 | w->force = 1; | |
75c1f891 | 3528 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3529 | |
91a5fca4 | 3530 | return 0; |
da34183e MB |
3531 | } |
3532 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3533 | ||
a5302181 LG |
3534 | /** |
3535 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3536 | * @dapm: DAPM context |
a5302181 LG |
3537 | * @pin: pin name |
3538 | * | |
74b8f955 | 3539 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3540 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3541 | * do any widget power switching. | |
3542 | */ | |
ce6120cc LG |
3543 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3544 | const char *pin) | |
a5302181 | 3545 | { |
ce6120cc | 3546 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3547 | } |
a5302181 | 3548 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3549 | |
5817b52a MB |
3550 | /** |
3551 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3552 | * @dapm: DAPM context |
5817b52a MB |
3553 | * @pin: pin name |
3554 | * | |
3555 | * Marks the specified pin as being not connected, disabling it along | |
3556 | * any parent or child widgets. At present this is identical to | |
3557 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3558 | * additional things such as disabling controls which only affect | |
3559 | * paths through the pin. | |
3560 | * | |
3561 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3562 | * do any widget power switching. | |
3563 | */ | |
ce6120cc | 3564 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3565 | { |
ce6120cc | 3566 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3567 | } |
3568 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3569 | ||
eeec12bf | 3570 | /** |
a5302181 | 3571 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3572 | * @dapm: DAPM context |
a5302181 | 3573 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3574 | * |
a5302181 | 3575 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3576 | * |
a5302181 | 3577 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3578 | */ |
ce6120cc LG |
3579 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3580 | const char *pin) | |
eeec12bf | 3581 | { |
91a5fca4 | 3582 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3583 | |
91a5fca4 LPC |
3584 | if (w) |
3585 | return w->connected; | |
a68b38ad | 3586 | |
eeec12bf GG |
3587 | return 0; |
3588 | } | |
a5302181 | 3589 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3590 | |
1547aba9 MB |
3591 | /** |
3592 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3593 | * @dapm: DAPM context |
1547aba9 MB |
3594 | * @pin: audio signal pin endpoint (or start point) |
3595 | * | |
3596 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3597 | * system is disabled a path between two endpoints flagged as ignoring | |
3598 | * suspend will not be disabled. The path must already be enabled via | |
3599 | * normal means at suspend time, it will not be turned on if it was not | |
3600 | * already enabled. | |
3601 | */ | |
ce6120cc LG |
3602 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3603 | const char *pin) | |
1547aba9 | 3604 | { |
91a5fca4 | 3605 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3606 | |
91a5fca4 LPC |
3607 | if (!w) { |
3608 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3609 | return -EINVAL; | |
1547aba9 MB |
3610 | } |
3611 | ||
91a5fca4 LPC |
3612 | w->ignore_suspend = 1; |
3613 | ||
3614 | return 0; | |
1547aba9 MB |
3615 | } |
3616 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3617 | ||
1633281b SW |
3618 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3619 | struct snd_soc_dapm_widget *w) | |
3620 | { | |
3621 | struct snd_soc_dapm_path *p; | |
3622 | ||
3623 | list_for_each_entry(p, &card->paths, list) { | |
3624 | if ((p->source == w) || (p->sink == w)) { | |
3625 | dev_dbg(card->dev, | |
3626 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3627 | p->source->name, p->source->id, p->source->dapm, | |
3628 | p->sink->name, p->sink->id, p->sink->dapm); | |
3629 | ||
3630 | /* Connected to something other than the codec */ | |
3631 | if (p->source->dapm != p->sink->dapm) | |
3632 | return true; | |
3633 | /* | |
3634 | * Loopback connection from codec external pin to | |
3635 | * codec external pin | |
3636 | */ | |
3637 | if (p->sink->id == snd_soc_dapm_input) { | |
3638 | switch (p->source->id) { | |
3639 | case snd_soc_dapm_output: | |
3640 | case snd_soc_dapm_micbias: | |
3641 | return true; | |
3642 | default: | |
3643 | break; | |
3644 | } | |
3645 | } | |
3646 | } | |
3647 | } | |
3648 | ||
3649 | return false; | |
3650 | } | |
3651 | ||
3652 | /** | |
3653 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3654 | * @codec: The codec whose pins should be processed | |
3655 | * | |
3656 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3657 | * which are unused. Pins are used if they are connected externally to the | |
3658 | * codec, whether that be to some other device, or a loop-back connection to | |
3659 | * the codec itself. | |
3660 | */ | |
3661 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3662 | { | |
3663 | struct snd_soc_card *card = codec->card; | |
3664 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3665 | struct snd_soc_dapm_widget *w; | |
3666 | ||
a094b80b | 3667 | dev_dbg(codec->dev, "Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3668 | &card->dapm, &codec->dapm); |
3669 | ||
3670 | list_for_each_entry(w, &card->widgets, list) { | |
3671 | if (w->dapm != dapm) | |
3672 | continue; | |
3673 | switch (w->id) { | |
3674 | case snd_soc_dapm_input: | |
3675 | case snd_soc_dapm_output: | |
3676 | case snd_soc_dapm_micbias: | |
a094b80b | 3677 | dev_dbg(codec->dev, "Auto NC: Checking widget %s\n", |
1633281b SW |
3678 | w->name); |
3679 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3680 | dev_dbg(codec->dev, |
1633281b SW |
3681 | "... Not in map; disabling\n"); |
3682 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3683 | } | |
3684 | break; | |
3685 | default: | |
3686 | break; | |
3687 | } | |
3688 | } | |
3689 | } | |
3690 | ||
2b97eabc RP |
3691 | /** |
3692 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3693 | * @dapm: DAPM context |
2b97eabc RP |
3694 | * |
3695 | * Free all dapm widgets and resources. | |
3696 | */ | |
ce6120cc | 3697 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3698 | { |
ce6120cc | 3699 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3700 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3701 | dapm_free_widgets(dapm); |
7be31be8 | 3702 | list_del(&dapm->list); |
2b97eabc RP |
3703 | } |
3704 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3705 | ||
ce6120cc | 3706 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3707 | { |
01005a72 | 3708 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3709 | struct snd_soc_dapm_widget *w; |
3710 | LIST_HEAD(down_list); | |
3711 | int powerdown = 0; | |
3712 | ||
01005a72 LG |
3713 | mutex_lock(&card->dapm_mutex); |
3714 | ||
97c866de JN |
3715 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3716 | if (w->dapm != dapm) | |
3717 | continue; | |
51737470 | 3718 | if (w->power) { |
828a842f | 3719 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3720 | w->power = 0; |
51737470 MB |
3721 | powerdown = 1; |
3722 | } | |
3723 | } | |
3724 | ||
3725 | /* If there were no widgets to power down we're already in | |
3726 | * standby. | |
3727 | */ | |
3728 | if (powerdown) { | |
7679e42e MB |
3729 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3730 | snd_soc_dapm_set_bias_level(dapm, | |
3731 | SND_SOC_BIAS_PREPARE); | |
828a842f | 3732 | dapm_seq_run(dapm, &down_list, 0, false); |
7679e42e MB |
3733 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3734 | snd_soc_dapm_set_bias_level(dapm, | |
3735 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3736 | } |
01005a72 LG |
3737 | |
3738 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3739 | } |
3740 | ||
3741 | /* | |
3742 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3743 | */ | |
3744 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3745 | { | |
3746 | struct snd_soc_codec *codec; | |
3747 | ||
445632ad | 3748 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3749 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3750 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3751 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3752 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3753 | } |
51737470 MB |
3754 | } |
3755 | ||
2b97eabc | 3756 | /* Module information */ |
d331124d | 3757 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3758 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3759 | MODULE_LICENSE("GPL"); |