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 | ||
30a6a1a4 | 223 | dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); |
b7950641 | 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 | ||
30a6a1a4 | 234 | dev_err(w->dapm->dev, "ASoC: no valid widget write method\n"); |
b7950641 | 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, | |
30a6a1a4 | 549 | "ASoC: can't allocate widget list for %s\n", |
fafd2176 SW |
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) { |
30a6a1a4 LG |
598 | dev_err(dapm->dev, "ASoC: failed to add widget" |
599 | " %s dapm kcontrol %s: %d\n", | |
600 | w->name, 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, | |
30a6a1a4 | 629 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 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, | |
30a6a1a4 | 648 | "ASoC: can't allocate widget list for %s\n", w->name); |
fafd2176 SW |
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) { | |
30a6a1a4 | 680 | dev_err(dapm->dev, "ASoC: failed to add kcontrol %s: %d\n", |
53daf208 | 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 | 701 | dev_err(w->dapm->dev, |
30a6a1a4 | 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) |
30a6a1a4 | 728 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 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) { | |
30a6a1a4 | 760 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
761 | w->name); |
762 | return -ENOMEM; | |
763 | } | |
764 | wlist = *list; | |
765 | ||
766 | /* insert the widget */ | |
30a6a1a4 | 767 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
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) { | |
30a6a1a4 LG |
847 | dev_err(widget->dapm->dev, |
848 | "ASoC: could not add widget %s\n", | |
ec2e3031 LG |
849 | widget->name); |
850 | return con; | |
851 | } | |
852 | } | |
853 | ||
854 | con += is_connected_output_ep(path->sink, list); | |
2b97eabc RP |
855 | } |
856 | } | |
857 | ||
024dc078 MB |
858 | widget->outputs = con; |
859 | ||
2b97eabc RP |
860 | return con; |
861 | } | |
862 | ||
863 | /* | |
864 | * Recursively check for a completed path to an active or physically connected | |
865 | * input widget. Returns number of complete paths. | |
866 | */ | |
ec2e3031 LG |
867 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
868 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
869 | { |
870 | struct snd_soc_dapm_path *path; | |
871 | int con = 0; | |
872 | ||
024dc078 MB |
873 | if (widget->inputs >= 0) |
874 | return widget->inputs; | |
875 | ||
de02d078 MB |
876 | DAPM_UPDATE_STAT(widget, path_checks); |
877 | ||
62ea874a MB |
878 | switch (widget->id) { |
879 | case snd_soc_dapm_supply: | |
880 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 881 | case snd_soc_dapm_clock_supply: |
246d0a17 | 882 | return 0; |
62ea874a MB |
883 | default: |
884 | break; | |
885 | } | |
246d0a17 | 886 | |
2b97eabc | 887 | /* active stream ? */ |
010ff262 MB |
888 | switch (widget->id) { |
889 | case snd_soc_dapm_dac: | |
890 | case snd_soc_dapm_aif_in: | |
888df395 | 891 | case snd_soc_dapm_dai: |
024dc078 MB |
892 | if (widget->active) { |
893 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
894 | return widget->inputs; | |
895 | } | |
010ff262 MB |
896 | default: |
897 | break; | |
898 | } | |
2b97eabc RP |
899 | |
900 | if (widget->connected) { | |
901 | /* connected pin ? */ | |
024dc078 MB |
902 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
903 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
904 | return widget->inputs; | |
905 | } | |
2b97eabc RP |
906 | |
907 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
908 | if (widget->id == snd_soc_dapm_vmid) { |
909 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
910 | return widget->inputs; | |
911 | } | |
2b97eabc RP |
912 | |
913 | /* connected jack ? */ | |
eaeae5d9 | 914 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
915 | (widget->id == snd_soc_dapm_line && |
916 | !list_empty(&widget->sinks))) { | |
917 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
918 | return widget->inputs; | |
919 | } | |
920 | ||
1ab97c8c MB |
921 | /* signal generator */ |
922 | if (widget->id == snd_soc_dapm_siggen) { | |
923 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
924 | return widget->inputs; | |
925 | } | |
2b97eabc RP |
926 | } |
927 | ||
928 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
929 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
930 | ||
bf3a9e13 MB |
931 | if (path->weak) |
932 | continue; | |
933 | ||
2b97eabc RP |
934 | if (path->walked) |
935 | continue; | |
936 | ||
ec2e3031 LG |
937 | trace_snd_soc_dapm_input_path(widget, path); |
938 | ||
2b97eabc RP |
939 | if (path->source && path->connect) { |
940 | path->walked = 1; | |
ec2e3031 LG |
941 | |
942 | /* do we need to add this widget to the list ? */ | |
943 | if (list) { | |
944 | int err; | |
90c6ce0d | 945 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 946 | if (err < 0) { |
30a6a1a4 LG |
947 | dev_err(widget->dapm->dev, |
948 | "ASoC: could not add widget %s\n", | |
ec2e3031 LG |
949 | widget->name); |
950 | return con; | |
951 | } | |
952 | } | |
953 | ||
954 | con += is_connected_input_ep(path->source, list); | |
2b97eabc RP |
955 | } |
956 | } | |
957 | ||
024dc078 MB |
958 | widget->inputs = con; |
959 | ||
2b97eabc RP |
960 | return con; |
961 | } | |
962 | ||
ec2e3031 LG |
963 | /** |
964 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
965 | * @dai: the soc DAI. | |
966 | * @stream: stream direction. | |
967 | * @list: list of active widgets for this stream. | |
968 | * | |
969 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
970 | * the initial stream specified by name. This takes into account | |
971 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
972 | * | |
973 | * Returns the number of valid paths or negative error. | |
974 | */ | |
975 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
976 | struct snd_soc_dapm_widget_list **list) | |
977 | { | |
978 | struct snd_soc_card *card = dai->card; | |
979 | int paths; | |
980 | ||
981 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
982 | dapm_reset(card); | |
983 | ||
984 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
985 | paths = is_connected_output_ep(dai->playback_widget, list); | |
986 | else | |
d298caae | 987 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
988 | |
989 | trace_snd_soc_dapm_connected(paths, stream); | |
990 | dapm_clear_walk(&card->dapm); | |
991 | mutex_unlock(&card->dapm_mutex); | |
992 | ||
993 | return paths; | |
994 | } | |
995 | ||
e2be2ccf JN |
996 | /* |
997 | * Handler for generic register modifier widget. | |
998 | */ | |
999 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1000 | struct snd_kcontrol *kcontrol, int event) | |
1001 | { | |
1002 | unsigned int val; | |
1003 | ||
1004 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1005 | val = w->on_val; | |
1006 | else | |
1007 | val = w->off_val; | |
1008 | ||
49575fb5 | 1009 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1010 | w->mask << w->shift, val << w->shift); |
1011 | ||
1012 | return 0; | |
1013 | } | |
11589418 | 1014 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1015 | |
62ea874a MB |
1016 | /* |
1017 | * Handler for regulator supply widget. | |
1018 | */ | |
1019 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1020 | struct snd_kcontrol *kcontrol, int event) | |
1021 | { | |
c05b84d1 MB |
1022 | int ret; |
1023 | ||
1024 | if (SND_SOC_DAPM_EVENT_ON(event)) { | |
1025 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
8784c77a | 1026 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1027 | if (ret != 0) |
1028 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1029 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1030 | w->name, ret); |
1031 | } | |
1032 | ||
a3cc056b | 1033 | return regulator_enable(w->regulator); |
c05b84d1 MB |
1034 | } else { |
1035 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
8784c77a | 1036 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1037 | if (ret != 0) |
1038 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1039 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1040 | w->name, ret); |
1041 | } | |
1042 | ||
a3cc056b | 1043 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1044 | } |
62ea874a MB |
1045 | } |
1046 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1047 | ||
d7e7eb91 OL |
1048 | /* |
1049 | * Handler for clock supply widget. | |
1050 | */ | |
1051 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1052 | struct snd_kcontrol *kcontrol, int event) | |
1053 | { | |
1054 | if (!w->clk) | |
1055 | return -EIO; | |
1056 | ||
ec02995a | 1057 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 OL |
1058 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
1059 | return clk_enable(w->clk); | |
1060 | } else { | |
1061 | clk_disable(w->clk); | |
1062 | return 0; | |
1063 | } | |
ec02995a | 1064 | #endif |
98b3cf12 | 1065 | return 0; |
d7e7eb91 OL |
1066 | } |
1067 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1068 | ||
d805002b MB |
1069 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1070 | { | |
9b8a83b2 MB |
1071 | if (w->power_checked) |
1072 | return w->new_power; | |
1073 | ||
d805002b | 1074 | if (w->force) |
9b8a83b2 | 1075 | w->new_power = 1; |
d805002b | 1076 | else |
9b8a83b2 MB |
1077 | w->new_power = w->power_check(w); |
1078 | ||
1079 | w->power_checked = true; | |
1080 | ||
1081 | return w->new_power; | |
d805002b MB |
1082 | } |
1083 | ||
cd0f2d47 MB |
1084 | /* Generic check to see if a widget should be powered. |
1085 | */ | |
1086 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1087 | { | |
1088 | int in, out; | |
1089 | ||
de02d078 MB |
1090 | DAPM_UPDATE_STAT(w, power_checks); |
1091 | ||
ec2e3031 | 1092 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1093 | dapm_clear_walk(w->dapm); |
ec2e3031 | 1094 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1095 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
1096 | return out != 0 && in != 0; |
1097 | } | |
1098 | ||
888df395 MB |
1099 | static int dapm_dai_check_power(struct snd_soc_dapm_widget *w) |
1100 | { | |
1101 | DAPM_UPDATE_STAT(w, power_checks); | |
1102 | ||
1eee1b38 MB |
1103 | if (w->active) |
1104 | return w->active; | |
1105 | ||
1106 | return dapm_generic_check_power(w); | |
888df395 MB |
1107 | } |
1108 | ||
6ea31b9f MB |
1109 | /* Check to see if an ADC has power */ |
1110 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1111 | { | |
1112 | int in; | |
1113 | ||
de02d078 MB |
1114 | DAPM_UPDATE_STAT(w, power_checks); |
1115 | ||
6ea31b9f | 1116 | if (w->active) { |
ec2e3031 | 1117 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1118 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
1119 | return in != 0; |
1120 | } else { | |
1121 | return dapm_generic_check_power(w); | |
1122 | } | |
1123 | } | |
1124 | ||
1125 | /* Check to see if a DAC has power */ | |
1126 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1127 | { | |
1128 | int out; | |
1129 | ||
de02d078 MB |
1130 | DAPM_UPDATE_STAT(w, power_checks); |
1131 | ||
6ea31b9f | 1132 | if (w->active) { |
ec2e3031 | 1133 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1134 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
1135 | return out != 0; |
1136 | } else { | |
1137 | return dapm_generic_check_power(w); | |
1138 | } | |
1139 | } | |
1140 | ||
246d0a17 MB |
1141 | /* Check to see if a power supply is needed */ |
1142 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1143 | { | |
1144 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1145 | |
de02d078 MB |
1146 | DAPM_UPDATE_STAT(w, power_checks); |
1147 | ||
246d0a17 MB |
1148 | /* Check if one of our outputs is connected */ |
1149 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1150 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1151 | ||
bf3a9e13 MB |
1152 | if (path->weak) |
1153 | continue; | |
1154 | ||
215edda3 MB |
1155 | if (path->connected && |
1156 | !path->connected(path->source, path->sink)) | |
1157 | continue; | |
1158 | ||
3017358a MB |
1159 | if (!path->sink) |
1160 | continue; | |
1161 | ||
f68d7e16 MB |
1162 | if (dapm_widget_power_check(path->sink)) |
1163 | return 1; | |
246d0a17 MB |
1164 | } |
1165 | ||
ce6120cc | 1166 | dapm_clear_walk(w->dapm); |
246d0a17 | 1167 | |
f68d7e16 | 1168 | return 0; |
246d0a17 MB |
1169 | } |
1170 | ||
35c64bca MB |
1171 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1172 | { | |
1173 | return 1; | |
1174 | } | |
1175 | ||
38357ab2 MB |
1176 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1177 | struct snd_soc_dapm_widget *b, | |
828a842f | 1178 | bool power_up) |
42aa3418 | 1179 | { |
828a842f MB |
1180 | int *sort; |
1181 | ||
1182 | if (power_up) | |
1183 | sort = dapm_up_seq; | |
1184 | else | |
1185 | sort = dapm_down_seq; | |
1186 | ||
38357ab2 MB |
1187 | if (sort[a->id] != sort[b->id]) |
1188 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1189 | if (a->subseq != b->subseq) { |
1190 | if (power_up) | |
1191 | return a->subseq - b->subseq; | |
1192 | else | |
1193 | return b->subseq - a->subseq; | |
1194 | } | |
b22ead2a MB |
1195 | if (a->reg != b->reg) |
1196 | return a->reg - b->reg; | |
84dab567 MB |
1197 | if (a->dapm != b->dapm) |
1198 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1199 | |
38357ab2 MB |
1200 | return 0; |
1201 | } | |
42aa3418 | 1202 | |
38357ab2 MB |
1203 | /* Insert a widget in order into a DAPM power sequence. */ |
1204 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1205 | struct list_head *list, | |
828a842f | 1206 | bool power_up) |
38357ab2 MB |
1207 | { |
1208 | struct snd_soc_dapm_widget *w; | |
1209 | ||
1210 | list_for_each_entry(w, list, power_list) | |
828a842f | 1211 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1212 | list_add_tail(&new_widget->power_list, &w->power_list); |
1213 | return; | |
1214 | } | |
1215 | ||
1216 | list_add_tail(&new_widget->power_list, list); | |
1217 | } | |
1218 | ||
68f89ad8 MB |
1219 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
1220 | struct snd_soc_dapm_widget *w, int event) | |
1221 | { | |
1222 | struct snd_soc_card *card = dapm->card; | |
1223 | const char *ev_name; | |
1224 | int power, ret; | |
1225 | ||
1226 | switch (event) { | |
1227 | case SND_SOC_DAPM_PRE_PMU: | |
1228 | ev_name = "PRE_PMU"; | |
1229 | power = 1; | |
1230 | break; | |
1231 | case SND_SOC_DAPM_POST_PMU: | |
1232 | ev_name = "POST_PMU"; | |
1233 | power = 1; | |
1234 | break; | |
1235 | case SND_SOC_DAPM_PRE_PMD: | |
1236 | ev_name = "PRE_PMD"; | |
1237 | power = 0; | |
1238 | break; | |
1239 | case SND_SOC_DAPM_POST_PMD: | |
1240 | ev_name = "POST_PMD"; | |
1241 | power = 0; | |
1242 | break; | |
1243 | default: | |
1244 | BUG(); | |
1245 | return; | |
1246 | } | |
1247 | ||
1248 | if (w->power != power) | |
1249 | return; | |
1250 | ||
1251 | if (w->event && (w->event_flags & event)) { | |
1252 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1253 | w->name, ev_name); | |
84e90930 | 1254 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1255 | ret = w->event(w, NULL, event); |
84e90930 | 1256 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1257 | if (ret < 0) |
30a6a1a4 | 1258 | dev_err(dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1259 | ev_name, w->name, ret); |
1260 | } | |
1261 | } | |
1262 | ||
b22ead2a | 1263 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1264 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1265 | struct list_head *pending) |
163cac06 | 1266 | { |
3a45b867 | 1267 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1268 | struct snd_soc_dapm_widget *w; |
1269 | int reg, power; | |
b22ead2a MB |
1270 | unsigned int value = 0; |
1271 | unsigned int mask = 0; | |
1272 | unsigned int cur_mask; | |
1273 | ||
1274 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1275 | power_list)->reg; | |
1276 | ||
1277 | list_for_each_entry(w, pending, power_list) { | |
1278 | cur_mask = 1 << w->shift; | |
1279 | BUG_ON(reg != w->reg); | |
1280 | ||
1281 | if (w->invert) | |
1282 | power = !w->power; | |
1283 | else | |
1284 | power = w->power; | |
1285 | ||
1286 | mask |= cur_mask; | |
1287 | if (power) | |
1288 | value |= cur_mask; | |
1289 | ||
fd8d3bc0 | 1290 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1291 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1292 | w->name, reg, value, mask); | |
81628103 | 1293 | |
68f89ad8 MB |
1294 | /* Check for events */ |
1295 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1296 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1297 | } |
1298 | ||
1299 | if (reg >= 0) { | |
29376bc7 MB |
1300 | /* Any widget will do, they should all be updating the |
1301 | * same register. | |
1302 | */ | |
1303 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1304 | power_list); | |
1305 | ||
fd8d3bc0 | 1306 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1307 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1308 | value, mask, reg, card->pop_time); |
1309 | pop_wait(card->pop_time); | |
49575fb5 | 1310 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1311 | } |
1312 | ||
81628103 | 1313 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1314 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1315 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1316 | } |
b22ead2a | 1317 | } |
42aa3418 | 1318 | |
b22ead2a MB |
1319 | /* Apply a DAPM power sequence. |
1320 | * | |
1321 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1322 | * order to minimise the number of writes to the device required | |
1323 | * multiple widgets will be updated in a single write where possible. | |
1324 | * Currently anything that requires more than a single write is not | |
1325 | * handled. | |
1326 | */ | |
ce6120cc | 1327 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1328 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1329 | { |
1330 | struct snd_soc_dapm_widget *w, *n; | |
1331 | LIST_HEAD(pending); | |
1332 | int cur_sort = -1; | |
20e4859d | 1333 | int cur_subseq = -1; |
b22ead2a | 1334 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1335 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1336 | int ret, i; |
828a842f MB |
1337 | int *sort; |
1338 | ||
1339 | if (power_up) | |
1340 | sort = dapm_up_seq; | |
1341 | else | |
1342 | sort = dapm_down_seq; | |
163cac06 | 1343 | |
b22ead2a MB |
1344 | list_for_each_entry_safe(w, n, list, power_list) { |
1345 | ret = 0; | |
1346 | ||
1347 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1348 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1349 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1350 | if (!list_empty(&pending)) |
7be31be8 | 1351 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1352 | |
474b62d6 MB |
1353 | if (cur_dapm && cur_dapm->seq_notifier) { |
1354 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1355 | if (sort[i] == cur_sort) | |
1356 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1357 | i, |
1358 | cur_subseq); | |
474b62d6 MB |
1359 | } |
1360 | ||
b22ead2a MB |
1361 | INIT_LIST_HEAD(&pending); |
1362 | cur_sort = -1; | |
b0b3e6f8 | 1363 | cur_subseq = INT_MIN; |
b22ead2a | 1364 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1365 | cur_dapm = NULL; |
b22ead2a MB |
1366 | } |
1367 | ||
163cac06 MB |
1368 | switch (w->id) { |
1369 | case snd_soc_dapm_pre: | |
1370 | if (!w->event) | |
b22ead2a MB |
1371 | list_for_each_entry_safe_continue(w, n, list, |
1372 | power_list); | |
163cac06 | 1373 | |
b22ead2a | 1374 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1375 | ret = w->event(w, |
1376 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1377 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1378 | ret = w->event(w, |
1379 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1380 | break; |
1381 | ||
1382 | case snd_soc_dapm_post: | |
1383 | if (!w->event) | |
b22ead2a MB |
1384 | list_for_each_entry_safe_continue(w, n, list, |
1385 | power_list); | |
163cac06 | 1386 | |
b22ead2a | 1387 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1388 | ret = w->event(w, |
1389 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1390 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1391 | ret = w->event(w, |
1392 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1393 | break; |
1394 | ||
b22ead2a | 1395 | default: |
81628103 MB |
1396 | /* Queue it up for application */ |
1397 | cur_sort = sort[w->id]; | |
20e4859d | 1398 | cur_subseq = w->subseq; |
81628103 | 1399 | cur_reg = w->reg; |
7be31be8 | 1400 | cur_dapm = w->dapm; |
81628103 MB |
1401 | list_move(&w->power_list, &pending); |
1402 | break; | |
163cac06 | 1403 | } |
b22ead2a MB |
1404 | |
1405 | if (ret < 0) | |
f7d41ae8 | 1406 | dev_err(w->dapm->dev, |
30a6a1a4 | 1407 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1408 | } |
b22ead2a MB |
1409 | |
1410 | if (!list_empty(&pending)) | |
28e86808 | 1411 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1412 | |
1413 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1414 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1415 | if (sort[i] == cur_sort) | |
1416 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1417 | i, cur_subseq); |
474b62d6 | 1418 | } |
42aa3418 MB |
1419 | } |
1420 | ||
97404f2e MB |
1421 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1422 | { | |
1423 | struct snd_soc_dapm_update *update = dapm->update; | |
1424 | struct snd_soc_dapm_widget *w; | |
1425 | int ret; | |
1426 | ||
1427 | if (!update) | |
1428 | return; | |
1429 | ||
1430 | w = update->widget; | |
1431 | ||
1432 | if (w->event && | |
1433 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1434 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1435 | if (ret != 0) | |
30a6a1a4 | 1436 | dev_err(dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
97404f2e MB |
1437 | w->name, ret); |
1438 | } | |
1439 | ||
49575fb5 | 1440 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1441 | update->val); |
1442 | if (ret < 0) | |
30a6a1a4 LG |
1443 | dev_err(dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
1444 | w->name, ret); | |
97404f2e MB |
1445 | |
1446 | if (w->event && | |
1447 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1448 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1449 | if (ret != 0) | |
30a6a1a4 | 1450 | dev_err(dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
97404f2e MB |
1451 | w->name, ret); |
1452 | } | |
1453 | } | |
1454 | ||
9d0624a7 MB |
1455 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1456 | * they're changing state. | |
1457 | */ | |
1458 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1459 | { | |
1460 | struct snd_soc_dapm_context *d = data; | |
1461 | int ret; | |
1462 | ||
56fba41f MB |
1463 | /* If we're off and we're not supposed to be go into STANDBY */ |
1464 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1465 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1466 | if (d->dev) |
1467 | pm_runtime_get_sync(d->dev); | |
1468 | ||
9d0624a7 MB |
1469 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1470 | if (ret != 0) | |
1471 | dev_err(d->dev, | |
30a6a1a4 | 1472 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1473 | } |
1474 | ||
56fba41f MB |
1475 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1476 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1477 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1478 | if (ret != 0) | |
1479 | dev_err(d->dev, | |
30a6a1a4 | 1480 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1481 | } |
1482 | } | |
1483 | ||
1484 | /* Async callback run prior to DAPM sequences - brings to their final | |
1485 | * state. | |
1486 | */ | |
1487 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1488 | { | |
1489 | struct snd_soc_dapm_context *d = data; | |
1490 | int ret; | |
1491 | ||
1492 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1493 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1494 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1495 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1496 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1497 | if (ret != 0) | |
30a6a1a4 | 1498 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1499 | ret); |
1500 | } | |
97404f2e | 1501 | |
9d0624a7 | 1502 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1503 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1504 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1505 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1506 | if (ret != 0) | |
30a6a1a4 LG |
1507 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1508 | ret); | |
f1aac484 MB |
1509 | |
1510 | if (d->dev) | |
fb644e9c | 1511 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1512 | } |
1513 | ||
1514 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1515 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1516 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1517 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1518 | if (ret != 0) | |
30a6a1a4 | 1519 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1520 | ret); |
1521 | } | |
1522 | } | |
97404f2e | 1523 | |
fe4fda5d MB |
1524 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1525 | bool power, bool connect) | |
1526 | { | |
1527 | /* If a connection is being made or broken then that update | |
1528 | * will have marked the peer dirty, otherwise the widgets are | |
1529 | * not connected and this update has no impact. */ | |
1530 | if (!connect) | |
1531 | return; | |
1532 | ||
1533 | /* If the peer is already in the state we're moving to then we | |
1534 | * won't have an impact on it. */ | |
1535 | if (power != peer->power) | |
75c1f891 | 1536 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1537 | } |
1538 | ||
05623c43 MB |
1539 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1540 | struct list_head *up_list, | |
1541 | struct list_head *down_list) | |
1542 | { | |
db432b41 MB |
1543 | struct snd_soc_dapm_path *path; |
1544 | ||
05623c43 MB |
1545 | if (w->power == power) |
1546 | return; | |
1547 | ||
1548 | trace_snd_soc_dapm_widget_power(w, power); | |
1549 | ||
db432b41 | 1550 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1551 | * also. |
db432b41 MB |
1552 | */ |
1553 | list_for_each_entry(path, &w->sources, list_sink) { | |
1554 | if (path->source) { | |
fe4fda5d MB |
1555 | dapm_widget_set_peer_power(path->source, power, |
1556 | path->connect); | |
db432b41 MB |
1557 | } |
1558 | } | |
f3bf3e45 MB |
1559 | switch (w->id) { |
1560 | case snd_soc_dapm_supply: | |
62ea874a | 1561 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1562 | case snd_soc_dapm_clock_supply: |
f3bf3e45 MB |
1563 | /* Supplies can't affect their outputs, only their inputs */ |
1564 | break; | |
1565 | default: | |
1566 | list_for_each_entry(path, &w->sinks, list_source) { | |
1567 | if (path->sink) { | |
1568 | dapm_widget_set_peer_power(path->sink, power, | |
1569 | path->connect); | |
1570 | } | |
db432b41 | 1571 | } |
f3bf3e45 | 1572 | break; |
db432b41 MB |
1573 | } |
1574 | ||
05623c43 MB |
1575 | if (power) |
1576 | dapm_seq_insert(w, up_list, true); | |
1577 | else | |
1578 | dapm_seq_insert(w, down_list, false); | |
1579 | ||
1580 | w->power = power; | |
1581 | } | |
1582 | ||
7c81beb0 MB |
1583 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1584 | struct list_head *up_list, | |
1585 | struct list_head *down_list) | |
1586 | { | |
7c81beb0 MB |
1587 | int power; |
1588 | ||
1589 | switch (w->id) { | |
1590 | case snd_soc_dapm_pre: | |
1591 | dapm_seq_insert(w, down_list, false); | |
1592 | break; | |
1593 | case snd_soc_dapm_post: | |
1594 | dapm_seq_insert(w, up_list, true); | |
1595 | break; | |
1596 | ||
1597 | default: | |
d805002b | 1598 | power = dapm_widget_power_check(w); |
7c81beb0 | 1599 | |
05623c43 | 1600 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1601 | break; |
1602 | } | |
1603 | } | |
1604 | ||
2b97eabc RP |
1605 | /* |
1606 | * Scan each dapm widget for complete audio path. | |
1607 | * A complete path is a route that has valid endpoints i.e.:- | |
1608 | * | |
1609 | * o DAC to output pin. | |
1610 | * o Input Pin to ADC. | |
1611 | * o Input pin to Output pin (bypass, sidetone) | |
1612 | * o DAC to ADC (loopback). | |
1613 | */ | |
ce6120cc | 1614 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1615 | { |
12ea2c78 | 1616 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1617 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1618 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1619 | LIST_HEAD(up_list); |
1620 | LIST_HEAD(down_list); | |
2955b47d | 1621 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1622 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1623 | |
84e90930 MB |
1624 | trace_snd_soc_dapm_start(card); |
1625 | ||
56fba41f | 1626 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1627 | if (d->idle_bias_off) |
1628 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1629 | else | |
1630 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1631 | } |
7be31be8 | 1632 | |
6c120e19 | 1633 | dapm_reset(card); |
9b8a83b2 | 1634 | |
6d3ddc81 | 1635 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1636 | * lists indicating if they should be powered up or down. We |
1637 | * only check widgets that have been flagged as dirty but note | |
1638 | * that new widgets may be added to the dirty list while we | |
1639 | * iterate. | |
6d3ddc81 | 1640 | */ |
db432b41 | 1641 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1642 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1643 | } |
1644 | ||
f9de6d74 | 1645 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1646 | switch (w->id) { |
1647 | case snd_soc_dapm_pre: | |
1648 | case snd_soc_dapm_post: | |
1649 | /* These widgets always need to be powered */ | |
1650 | break; | |
1651 | default: | |
1652 | list_del_init(&w->dirty); | |
1653 | break; | |
1654 | } | |
db432b41 | 1655 | |
f9de6d74 MB |
1656 | if (w->power) { |
1657 | d = w->dapm; | |
1658 | ||
1659 | /* Supplies and micbiases only bring the | |
1660 | * context up to STANDBY as unless something | |
1661 | * else is active and passing audio they | |
afe62367 MB |
1662 | * generally don't require full power. Signal |
1663 | * generators are virtual pins and have no | |
1664 | * power impact themselves. | |
f9de6d74 MB |
1665 | */ |
1666 | switch (w->id) { | |
afe62367 MB |
1667 | case snd_soc_dapm_siggen: |
1668 | break; | |
f9de6d74 | 1669 | case snd_soc_dapm_supply: |
62ea874a | 1670 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1671 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1672 | case snd_soc_dapm_micbias: |
1673 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1674 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1675 | break; | |
1676 | default: | |
1677 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1678 | break; | |
1679 | } | |
1680 | } | |
1681 | ||
1682 | } | |
1683 | ||
85a843c5 MB |
1684 | /* Force all contexts in the card to the same bias state if |
1685 | * they're not ground referenced. | |
1686 | */ | |
56fba41f | 1687 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1688 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1689 | if (d->target_bias_level > bias) |
1690 | bias = d->target_bias_level; | |
52ba67bf | 1691 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1692 | if (!d->idle_bias_off) |
1693 | d->target_bias_level = bias; | |
52ba67bf | 1694 | |
de02d078 | 1695 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1696 | |
9d0624a7 MB |
1697 | /* Run all the bias changes in parallel */ |
1698 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1699 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1700 | &async_domain); | |
1701 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1702 | |
6d3ddc81 | 1703 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1704 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1705 | |
97404f2e MB |
1706 | dapm_widget_update(dapm); |
1707 | ||
6d3ddc81 | 1708 | /* Now power up. */ |
828a842f | 1709 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1710 | |
9d0624a7 MB |
1711 | /* Run all the bias changes in parallel */ |
1712 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1713 | async_schedule_domain(dapm_post_sequence_async, d, | |
1714 | &async_domain); | |
1715 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1716 | |
8078d87f LG |
1717 | /* do we need to notify any clients that DAPM event is complete */ |
1718 | list_for_each_entry(d, &card->dapm_list, list) { | |
1719 | if (d->stream_event) | |
1720 | d->stream_event(d, event); | |
1721 | } | |
1722 | ||
fd8d3bc0 JN |
1723 | pop_dbg(dapm->dev, card->pop_time, |
1724 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1725 | pop_wait(card->pop_time); |
cb507e7e | 1726 | |
84e90930 MB |
1727 | trace_snd_soc_dapm_done(card); |
1728 | ||
42aa3418 | 1729 | return 0; |
2b97eabc RP |
1730 | } |
1731 | ||
79fb9387 | 1732 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1733 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1734 | char __user *user_buf, | |
1735 | size_t count, loff_t *ppos) | |
1736 | { | |
1737 | struct snd_soc_dapm_widget *w = file->private_data; | |
1738 | char *buf; | |
1739 | int in, out; | |
1740 | ssize_t ret; | |
1741 | struct snd_soc_dapm_path *p = NULL; | |
1742 | ||
1743 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1744 | if (!buf) | |
1745 | return -ENOMEM; | |
1746 | ||
ec2e3031 | 1747 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1748 | dapm_clear_walk(w->dapm); |
ec2e3031 | 1749 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1750 | dapm_clear_walk(w->dapm); |
79fb9387 | 1751 | |
f13ebada MB |
1752 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1753 | w->name, w->power ? "On" : "Off", | |
1754 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1755 | |
d033c36a MB |
1756 | if (w->reg >= 0) |
1757 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1758 | " - R%d(0x%x) bit %d", | |
1759 | w->reg, w->reg, w->shift); | |
1760 | ||
1761 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1762 | ||
3eef08ba MB |
1763 | if (w->sname) |
1764 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1765 | w->sname, | |
1766 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1767 | |
1768 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1769 | if (p->connected && !p->connected(w, p->sink)) |
1770 | continue; | |
1771 | ||
79fb9387 MB |
1772 | if (p->connect) |
1773 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1774 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1775 | p->name ? p->name : "static", |
1776 | p->source->name); | |
1777 | } | |
1778 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1779 | if (p->connected && !p->connected(w, p->sink)) |
1780 | continue; | |
1781 | ||
79fb9387 MB |
1782 | if (p->connect) |
1783 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1784 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1785 | p->name ? p->name : "static", |
1786 | p->sink->name); | |
1787 | } | |
1788 | ||
1789 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1790 | ||
1791 | kfree(buf); | |
1792 | return ret; | |
1793 | } | |
1794 | ||
1795 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1796 | .open = simple_open, |
79fb9387 | 1797 | .read = dapm_widget_power_read_file, |
6038f373 | 1798 | .llseek = default_llseek, |
79fb9387 MB |
1799 | }; |
1800 | ||
ef49e4fa MB |
1801 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1802 | size_t count, loff_t *ppos) | |
1803 | { | |
1804 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1805 | char *level; | |
1806 | ||
1807 | switch (dapm->bias_level) { | |
1808 | case SND_SOC_BIAS_ON: | |
1809 | level = "On\n"; | |
1810 | break; | |
1811 | case SND_SOC_BIAS_PREPARE: | |
1812 | level = "Prepare\n"; | |
1813 | break; | |
1814 | case SND_SOC_BIAS_STANDBY: | |
1815 | level = "Standby\n"; | |
1816 | break; | |
1817 | case SND_SOC_BIAS_OFF: | |
1818 | level = "Off\n"; | |
1819 | break; | |
1820 | default: | |
1821 | BUG(); | |
1822 | level = "Unknown\n"; | |
1823 | break; | |
1824 | } | |
1825 | ||
1826 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1827 | strlen(level)); | |
1828 | } | |
1829 | ||
1830 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1831 | .open = simple_open, |
ef49e4fa MB |
1832 | .read = dapm_bias_read_file, |
1833 | .llseek = default_llseek, | |
1834 | }; | |
1835 | ||
8eecaf62 LPC |
1836 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1837 | struct dentry *parent) | |
79fb9387 | 1838 | { |
79fb9387 MB |
1839 | struct dentry *d; |
1840 | ||
8eecaf62 LPC |
1841 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1842 | ||
1843 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1844 | dev_warn(dapm->dev, |
30a6a1a4 | 1845 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1846 | return; |
8eecaf62 | 1847 | } |
79fb9387 | 1848 | |
ef49e4fa MB |
1849 | d = debugfs_create_file("bias_level", 0444, |
1850 | dapm->debugfs_dapm, dapm, | |
1851 | &dapm_bias_fops); | |
1852 | if (!d) | |
1853 | dev_warn(dapm->dev, | |
1854 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1855 | } |
ef49e4fa | 1856 | |
d5d1e0be LPC |
1857 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1858 | { | |
1859 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1860 | struct dentry *d; | |
79fb9387 | 1861 | |
d5d1e0be LPC |
1862 | if (!dapm->debugfs_dapm || !w->name) |
1863 | return; | |
1864 | ||
1865 | d = debugfs_create_file(w->name, 0444, | |
1866 | dapm->debugfs_dapm, w, | |
1867 | &dapm_widget_power_fops); | |
1868 | if (!d) | |
1869 | dev_warn(w->dapm->dev, | |
1870 | "ASoC: Failed to create %s debugfs file\n", | |
1871 | w->name); | |
79fb9387 | 1872 | } |
d5d1e0be | 1873 | |
6c45e126 LPC |
1874 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1875 | { | |
1876 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1877 | } | |
1878 | ||
79fb9387 | 1879 | #else |
8eecaf62 LPC |
1880 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1881 | struct dentry *parent) | |
79fb9387 MB |
1882 | { |
1883 | } | |
d5d1e0be LPC |
1884 | |
1885 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1886 | { | |
1887 | } | |
1888 | ||
6c45e126 LPC |
1889 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1890 | { | |
1891 | } | |
1892 | ||
79fb9387 MB |
1893 | #endif |
1894 | ||
2b97eabc | 1895 | /* test and update the power status of a mux widget */ |
4edbb345 | 1896 | static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
40f02cd9 | 1897 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1898 | { |
1899 | struct snd_soc_dapm_path *path; | |
1900 | int found = 0; | |
1901 | ||
eff317d0 | 1902 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1903 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1904 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1905 | return -ENODEV; |
1906 | ||
2b97eabc | 1907 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1908 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1909 | if (path->kcontrol != kcontrol) |
1910 | continue; | |
1911 | ||
cb01e2b9 | 1912 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1913 | continue; |
1914 | ||
1915 | found = 1; | |
1916 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1917 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1918 | path->connect = 1; /* new connection */ |
75c1f891 | 1919 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1920 | } else { |
1921 | if (path->connect) | |
75c1f891 MB |
1922 | dapm_mark_dirty(path->source, |
1923 | "mux disconnection"); | |
2b97eabc | 1924 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1925 | } |
2b97eabc RP |
1926 | } |
1927 | ||
db432b41 | 1928 | if (found) { |
75c1f891 | 1929 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1930 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1931 | } |
2b97eabc | 1932 | |
618dae11 | 1933 | return found; |
2b97eabc | 1934 | } |
4edbb345 LG |
1935 | |
1936 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, | |
1937 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) | |
1938 | { | |
1939 | struct snd_soc_card *card = widget->dapm->card; | |
1940 | int ret; | |
1941 | ||
3cd04343 | 1942 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1943 | ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1944 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1945 | if (ret > 0) |
1946 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1947 | return ret; |
1948 | } | |
40f02cd9 | 1949 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1950 | |
1b075e3f | 1951 | /* test and update the power status of a mixer or switch widget */ |
4edbb345 | 1952 | static int soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1953 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1954 | { |
1955 | struct snd_soc_dapm_path *path; | |
1956 | int found = 0; | |
1957 | ||
1b075e3f | 1958 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1959 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1960 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1961 | return -ENODEV; |
1962 | ||
2b97eabc | 1963 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1964 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1965 | if (path->kcontrol != kcontrol) |
1966 | continue; | |
1967 | ||
1968 | /* found, now check type */ | |
1969 | found = 1; | |
283375ce | 1970 | path->connect = connect; |
75c1f891 | 1971 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
1972 | } |
1973 | ||
db432b41 | 1974 | if (found) { |
75c1f891 | 1975 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 1976 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1977 | } |
2b97eabc | 1978 | |
618dae11 | 1979 | return found; |
2b97eabc | 1980 | } |
4edbb345 LG |
1981 | |
1982 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, | |
1983 | struct snd_kcontrol *kcontrol, int connect) | |
1984 | { | |
1985 | struct snd_soc_card *card = widget->dapm->card; | |
1986 | int ret; | |
1987 | ||
3cd04343 | 1988 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1989 | ret = soc_dapm_mixer_update_power(widget, kcontrol, connect); |
1990 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1991 | if (ret > 0) |
1992 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1993 | return ret; |
1994 | } | |
40f02cd9 | 1995 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
1996 | |
1997 | /* show dapm widget status in sys fs */ | |
1998 | static ssize_t dapm_widget_show(struct device *dev, | |
1999 | struct device_attribute *attr, char *buf) | |
2000 | { | |
36ae1a96 | 2001 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2002 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2003 | struct snd_soc_dapm_widget *w; |
2004 | int count = 0; | |
2005 | char *state = "not set"; | |
2006 | ||
97c866de JN |
2007 | list_for_each_entry(w, &codec->card->widgets, list) { |
2008 | if (w->dapm != &codec->dapm) | |
2009 | continue; | |
2b97eabc RP |
2010 | |
2011 | /* only display widgets that burnm power */ | |
2012 | switch (w->id) { | |
2013 | case snd_soc_dapm_hp: | |
2014 | case snd_soc_dapm_mic: | |
2015 | case snd_soc_dapm_spk: | |
2016 | case snd_soc_dapm_line: | |
2017 | case snd_soc_dapm_micbias: | |
2018 | case snd_soc_dapm_dac: | |
2019 | case snd_soc_dapm_adc: | |
2020 | case snd_soc_dapm_pga: | |
d88429a6 | 2021 | case snd_soc_dapm_out_drv: |
2b97eabc | 2022 | case snd_soc_dapm_mixer: |
ca9c1aae | 2023 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2024 | case snd_soc_dapm_supply: |
62ea874a | 2025 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2026 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2027 | if (w->name) |
2028 | count += sprintf(buf + count, "%s: %s\n", | |
2029 | w->name, w->power ? "On":"Off"); | |
2030 | break; | |
2031 | default: | |
2032 | break; | |
2033 | } | |
2034 | } | |
2035 | ||
ce6120cc | 2036 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2037 | case SND_SOC_BIAS_ON: |
2038 | state = "On"; | |
2b97eabc | 2039 | break; |
0be9898a MB |
2040 | case SND_SOC_BIAS_PREPARE: |
2041 | state = "Prepare"; | |
2b97eabc | 2042 | break; |
0be9898a MB |
2043 | case SND_SOC_BIAS_STANDBY: |
2044 | state = "Standby"; | |
2b97eabc | 2045 | break; |
0be9898a MB |
2046 | case SND_SOC_BIAS_OFF: |
2047 | state = "Off"; | |
2b97eabc RP |
2048 | break; |
2049 | } | |
2050 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2051 | ||
2052 | return count; | |
2053 | } | |
2054 | ||
2055 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2056 | ||
2057 | int snd_soc_dapm_sys_add(struct device *dev) | |
2058 | { | |
12ef193d | 2059 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2060 | } |
2061 | ||
2062 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2063 | { | |
aef90843 | 2064 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2065 | } |
2066 | ||
2067 | /* free all dapm widgets and resources */ | |
ce6120cc | 2068 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2069 | { |
2070 | struct snd_soc_dapm_widget *w, *next_w; | |
2071 | struct snd_soc_dapm_path *p, *next_p; | |
2072 | ||
97c866de JN |
2073 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2074 | if (w->dapm != dapm) | |
2075 | continue; | |
2b97eabc | 2076 | list_del(&w->list); |
8ddab3f5 JN |
2077 | /* |
2078 | * remove source and sink paths associated to this widget. | |
2079 | * While removing the path, remove reference to it from both | |
2080 | * source and sink widgets so that path is removed only once. | |
2081 | */ | |
2082 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
2083 | list_del(&p->list_sink); | |
2084 | list_del(&p->list_source); | |
2085 | list_del(&p->list); | |
2086 | kfree(p->long_name); | |
2087 | kfree(p); | |
2088 | } | |
2089 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
2090 | list_del(&p->list_sink); | |
2091 | list_del(&p->list_source); | |
2092 | list_del(&p->list); | |
2093 | kfree(p->long_name); | |
2094 | kfree(p); | |
2095 | } | |
fad59888 | 2096 | kfree(w->kcontrols); |
ead9b919 | 2097 | kfree(w->name); |
2b97eabc RP |
2098 | kfree(w); |
2099 | } | |
2b97eabc RP |
2100 | } |
2101 | ||
91a5fca4 LPC |
2102 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2103 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2104 | bool search_other_contexts) | |
a5302181 LG |
2105 | { |
2106 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2107 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2108 | |
97c866de | 2109 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2110 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2111 | if (w->dapm == dapm) |
2112 | return w; | |
2113 | else | |
2114 | fallback = w; | |
a5302181 LG |
2115 | } |
2116 | } | |
2117 | ||
91a5fca4 LPC |
2118 | if (search_other_contexts) |
2119 | return fallback; | |
2120 | ||
2121 | return NULL; | |
2122 | } | |
2123 | ||
2124 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2125 | const char *pin, int status) | |
2126 | { | |
2127 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2128 | ||
2129 | if (!w) { | |
30a6a1a4 | 2130 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2131 | return -EINVAL; |
0d86733c MB |
2132 | } |
2133 | ||
1a8b2d9d MB |
2134 | if (w->connected != status) |
2135 | dapm_mark_dirty(w, "pin configuration"); | |
2136 | ||
91a5fca4 LPC |
2137 | w->connected = status; |
2138 | if (status == 0) | |
2139 | w->force = 0; | |
2140 | ||
2141 | return 0; | |
a5302181 LG |
2142 | } |
2143 | ||
2b97eabc | 2144 | /** |
a5302181 | 2145 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2146 | * @dapm: DAPM context |
2b97eabc RP |
2147 | * |
2148 | * Walks all dapm audio paths and powers widgets according to their | |
2149 | * stream or path usage. | |
2150 | * | |
2151 | * Returns 0 for success. | |
2152 | */ | |
ce6120cc | 2153 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2154 | { |
a73fb2df LG |
2155 | int ret; |
2156 | ||
4f4c0072 MB |
2157 | /* |
2158 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2159 | * silly DAPM runs during card startup. | |
2160 | */ | |
2161 | if (!dapm->card || !dapm->card->instantiated) | |
2162 | return 0; | |
2163 | ||
3cd04343 | 2164 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
a73fb2df LG |
2165 | ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2166 | mutex_unlock(&dapm->card->dapm_mutex); | |
2167 | return ret; | |
2b97eabc | 2168 | } |
a5302181 | 2169 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2170 | |
ce6120cc | 2171 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 2172 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
2173 | { |
2174 | struct snd_soc_dapm_path *path; | |
2175 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 2176 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 2177 | const char *sink; |
215edda3 | 2178 | const char *control = route->control; |
ead9b919 JN |
2179 | const char *source; |
2180 | char prefixed_sink[80]; | |
2181 | char prefixed_source[80]; | |
2b97eabc RP |
2182 | int ret = 0; |
2183 | ||
88e8b9a8 | 2184 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
2185 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2186 | dapm->codec->name_prefix, route->sink); | |
2187 | sink = prefixed_sink; | |
2188 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2189 | dapm->codec->name_prefix, route->source); | |
2190 | source = prefixed_source; | |
2191 | } else { | |
2192 | sink = route->sink; | |
2193 | source = route->source; | |
2194 | } | |
2195 | ||
97c866de JN |
2196 | /* |
2197 | * find src and dest widgets over all widgets but favor a widget from | |
2198 | * current DAPM context | |
2199 | */ | |
2200 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 2201 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
2202 | wtsink = w; |
2203 | if (w->dapm == dapm) | |
2204 | wsink = w; | |
2b97eabc RP |
2205 | continue; |
2206 | } | |
2207 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
2208 | wtsource = w; |
2209 | if (w->dapm == dapm) | |
2210 | wsource = w; | |
2b97eabc RP |
2211 | } |
2212 | } | |
97c866de JN |
2213 | /* use widget from another DAPM context if not found from this */ |
2214 | if (!wsink) | |
2215 | wsink = wtsink; | |
2216 | if (!wsource) | |
2217 | wsource = wtsource; | |
2b97eabc | 2218 | |
30a6a1a4 LG |
2219 | if (wsource == NULL) { |
2220 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2221 | route->source); | |
2b97eabc | 2222 | return -ENODEV; |
30a6a1a4 LG |
2223 | } |
2224 | if (wsink == NULL) { | |
2225 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2226 | route->sink); | |
2227 | return -ENODEV; | |
2228 | } | |
2b97eabc RP |
2229 | |
2230 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2231 | if (!path) | |
2232 | return -ENOMEM; | |
2233 | ||
2234 | path->source = wsource; | |
2235 | path->sink = wsink; | |
215edda3 | 2236 | path->connected = route->connected; |
2b97eabc RP |
2237 | INIT_LIST_HEAD(&path->list); |
2238 | INIT_LIST_HEAD(&path->list_source); | |
2239 | INIT_LIST_HEAD(&path->list_sink); | |
2240 | ||
2241 | /* check for external widgets */ | |
2242 | if (wsink->id == snd_soc_dapm_input) { | |
2243 | if (wsource->id == snd_soc_dapm_micbias || | |
2244 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2245 | wsource->id == snd_soc_dapm_line || |
2246 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2247 | wsink->ext = 1; |
2248 | } | |
2249 | if (wsource->id == snd_soc_dapm_output) { | |
2250 | if (wsink->id == snd_soc_dapm_spk || | |
2251 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2252 | wsink->id == snd_soc_dapm_line || |
2253 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2254 | wsource->ext = 1; |
2255 | } | |
2256 | ||
2257 | /* connect static paths */ | |
2258 | if (control == NULL) { | |
8ddab3f5 | 2259 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2260 | list_add(&path->list_sink, &wsink->sources); |
2261 | list_add(&path->list_source, &wsource->sinks); | |
2262 | path->connect = 1; | |
2263 | return 0; | |
2264 | } | |
2265 | ||
2266 | /* connect dynamic paths */ | |
dc2bea61 | 2267 | switch (wsink->id) { |
2b97eabc RP |
2268 | case snd_soc_dapm_adc: |
2269 | case snd_soc_dapm_dac: | |
2270 | case snd_soc_dapm_pga: | |
d88429a6 | 2271 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2272 | case snd_soc_dapm_input: |
2273 | case snd_soc_dapm_output: | |
1ab97c8c | 2274 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2275 | case snd_soc_dapm_micbias: |
2276 | case snd_soc_dapm_vmid: | |
2277 | case snd_soc_dapm_pre: | |
2278 | case snd_soc_dapm_post: | |
246d0a17 | 2279 | case snd_soc_dapm_supply: |
62ea874a | 2280 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2281 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2282 | case snd_soc_dapm_aif_in: |
2283 | case snd_soc_dapm_aif_out: | |
888df395 | 2284 | case snd_soc_dapm_dai: |
c74184ed | 2285 | case snd_soc_dapm_dai_link: |
8ddab3f5 | 2286 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2287 | list_add(&path->list_sink, &wsink->sources); |
2288 | list_add(&path->list_source, &wsource->sinks); | |
2289 | path->connect = 1; | |
2290 | return 0; | |
2291 | case snd_soc_dapm_mux: | |
24ff33ac | 2292 | case snd_soc_dapm_virt_mux: |
74155556 | 2293 | case snd_soc_dapm_value_mux: |
ce6120cc | 2294 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2295 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2296 | if (ret != 0) |
2297 | goto err; | |
2298 | break; | |
2299 | case snd_soc_dapm_switch: | |
2300 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2301 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2302 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2303 | if (ret != 0) |
2304 | goto err; | |
2305 | break; | |
2306 | case snd_soc_dapm_hp: | |
2307 | case snd_soc_dapm_mic: | |
2308 | case snd_soc_dapm_line: | |
2309 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2310 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2311 | list_add(&path->list_sink, &wsink->sources); |
2312 | list_add(&path->list_source, &wsource->sinks); | |
2313 | path->connect = 0; | |
2314 | return 0; | |
2315 | } | |
fabd0384 MB |
2316 | |
2317 | dapm_mark_dirty(wsource, "Route added"); | |
2318 | dapm_mark_dirty(wsink, "Route added"); | |
2319 | ||
2b97eabc RP |
2320 | return 0; |
2321 | ||
2322 | err: | |
30a6a1a4 | 2323 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
f7d41ae8 | 2324 | source, control, sink); |
2b97eabc RP |
2325 | kfree(path); |
2326 | return ret; | |
2327 | } | |
105f1c28 | 2328 | |
efcc3c61 MB |
2329 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2330 | const struct snd_soc_dapm_route *route) | |
2331 | { | |
2332 | struct snd_soc_dapm_path *path, *p; | |
2333 | const char *sink; | |
2334 | const char *source; | |
2335 | char prefixed_sink[80]; | |
2336 | char prefixed_source[80]; | |
2337 | ||
2338 | if (route->control) { | |
2339 | dev_err(dapm->dev, | |
30a6a1a4 | 2340 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2341 | return -EINVAL; |
2342 | } | |
2343 | ||
2344 | if (dapm->codec && dapm->codec->name_prefix) { | |
2345 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2346 | dapm->codec->name_prefix, route->sink); | |
2347 | sink = prefixed_sink; | |
2348 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2349 | dapm->codec->name_prefix, route->source); | |
2350 | source = prefixed_source; | |
2351 | } else { | |
2352 | sink = route->sink; | |
2353 | source = route->source; | |
2354 | } | |
2355 | ||
2356 | path = NULL; | |
2357 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2358 | if (strcmp(p->source->name, source) != 0) | |
2359 | continue; | |
2360 | if (strcmp(p->sink->name, sink) != 0) | |
2361 | continue; | |
2362 | path = p; | |
2363 | break; | |
2364 | } | |
2365 | ||
2366 | if (path) { | |
2367 | dapm_mark_dirty(path->source, "Route removed"); | |
2368 | dapm_mark_dirty(path->sink, "Route removed"); | |
2369 | ||
2370 | list_del(&path->list); | |
2371 | list_del(&path->list_sink); | |
2372 | list_del(&path->list_source); | |
2373 | kfree(path); | |
2374 | } else { | |
30a6a1a4 | 2375 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2376 | source, sink); |
2377 | } | |
2378 | ||
2379 | return 0; | |
2380 | } | |
2381 | ||
105f1c28 MB |
2382 | /** |
2383 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2384 | * @dapm: DAPM context |
105f1c28 MB |
2385 | * @route: audio routes |
2386 | * @num: number of routes | |
2387 | * | |
2388 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2389 | * the widget receiving the audio signal, whilst the source is the sender | |
2390 | * of the audio signal. | |
2391 | * | |
2392 | * Returns 0 for success else error. On error all resources can be freed | |
2393 | * with a call to snd_soc_card_free(). | |
2394 | */ | |
ce6120cc | 2395 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2396 | const struct snd_soc_dapm_route *route, int num) |
2397 | { | |
62d4a4b9 | 2398 | int i, r, ret = 0; |
105f1c28 | 2399 | |
a73fb2df | 2400 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2401 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2402 | r = snd_soc_dapm_add_route(dapm, route); |
2403 | if (r < 0) { | |
30a6a1a4 LG |
2404 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2405 | route->source, | |
2406 | route->control ? route->control : "direct", | |
2407 | route->sink); | |
62d4a4b9 | 2408 | ret = r; |
105f1c28 MB |
2409 | } |
2410 | route++; | |
2411 | } | |
a73fb2df | 2412 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2413 | |
60884c27 | 2414 | return ret; |
105f1c28 MB |
2415 | } |
2416 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2417 | ||
efcc3c61 MB |
2418 | /** |
2419 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2420 | * @dapm: DAPM context | |
2421 | * @route: audio routes | |
2422 | * @num: number of routes | |
2423 | * | |
2424 | * Removes routes from the DAPM context. | |
2425 | */ | |
2426 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2427 | const struct snd_soc_dapm_route *route, int num) | |
2428 | { | |
2429 | int i, ret = 0; | |
2430 | ||
2431 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2432 | for (i = 0; i < num; i++) { | |
2433 | snd_soc_dapm_del_route(dapm, route); | |
2434 | route++; | |
2435 | } | |
2436 | mutex_unlock(&dapm->card->dapm_mutex); | |
2437 | ||
2438 | return ret; | |
2439 | } | |
2440 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2441 | ||
bf3a9e13 MB |
2442 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2443 | const struct snd_soc_dapm_route *route) | |
2444 | { | |
2445 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2446 | route->source, | |
2447 | true); | |
2448 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2449 | route->sink, | |
2450 | true); | |
2451 | struct snd_soc_dapm_path *path; | |
2452 | int count = 0; | |
2453 | ||
2454 | if (!source) { | |
30a6a1a4 | 2455 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2456 | route->source); |
2457 | return -ENODEV; | |
2458 | } | |
2459 | ||
2460 | if (!sink) { | |
30a6a1a4 | 2461 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2462 | route->sink); |
2463 | return -ENODEV; | |
2464 | } | |
2465 | ||
2466 | if (route->control || route->connected) | |
30a6a1a4 | 2467 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2468 | route->source, route->sink); |
2469 | ||
2470 | list_for_each_entry(path, &source->sinks, list_source) { | |
2471 | if (path->sink == sink) { | |
2472 | path->weak = 1; | |
2473 | count++; | |
2474 | } | |
2475 | } | |
2476 | ||
2477 | if (count == 0) | |
30a6a1a4 | 2478 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2479 | route->source, route->sink); |
2480 | if (count > 1) | |
30a6a1a4 | 2481 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2482 | count, route->source, route->sink); |
2483 | ||
2484 | return 0; | |
2485 | } | |
2486 | ||
2487 | /** | |
2488 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2489 | * @dapm: DAPM context | |
2490 | * @route: audio routes | |
2491 | * @num: number of routes | |
2492 | * | |
2493 | * Mark existing routes matching those specified in the passed array | |
2494 | * as being weak, meaning that they are ignored for the purpose of | |
2495 | * power decisions. The main intended use case is for sidetone paths | |
2496 | * which couple audio between other independent paths if they are both | |
2497 | * active in order to make the combination work better at the user | |
2498 | * level but which aren't intended to be "used". | |
2499 | * | |
2500 | * Note that CODEC drivers should not use this as sidetone type paths | |
2501 | * can frequently also be used as bypass paths. | |
2502 | */ | |
2503 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2504 | const struct snd_soc_dapm_route *route, int num) | |
2505 | { | |
2506 | int i, err; | |
2507 | int ret = 0; | |
2508 | ||
a73fb2df | 2509 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2510 | for (i = 0; i < num; i++) { |
2511 | err = snd_soc_dapm_weak_route(dapm, route); | |
2512 | if (err) | |
2513 | ret = err; | |
2514 | route++; | |
2515 | } | |
a73fb2df | 2516 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2517 | |
2518 | return ret; | |
2519 | } | |
2520 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2521 | ||
2b97eabc RP |
2522 | /** |
2523 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2524 | * @dapm: DAPM context |
2b97eabc RP |
2525 | * |
2526 | * Checks the codec for any new dapm widgets and creates them if found. | |
2527 | * | |
2528 | * Returns 0 for success. | |
2529 | */ | |
ce6120cc | 2530 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2531 | { |
2532 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2533 | unsigned int val; |
2b97eabc | 2534 | |
a73fb2df LG |
2535 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
2536 | ||
97c866de | 2537 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2538 | { |
2539 | if (w->new) | |
2540 | continue; | |
2541 | ||
fad59888 SW |
2542 | if (w->num_kcontrols) { |
2543 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2544 | sizeof(struct snd_kcontrol *), | |
2545 | GFP_KERNEL); | |
a73fb2df LG |
2546 | if (!w->kcontrols) { |
2547 | mutex_unlock(&dapm->card->dapm_mutex); | |
fad59888 | 2548 | return -ENOMEM; |
a73fb2df | 2549 | } |
fad59888 SW |
2550 | } |
2551 | ||
2b97eabc RP |
2552 | switch(w->id) { |
2553 | case snd_soc_dapm_switch: | |
2554 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2555 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2556 | dapm_new_mixer(w); |
2b97eabc RP |
2557 | break; |
2558 | case snd_soc_dapm_mux: | |
24ff33ac | 2559 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2560 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2561 | dapm_new_mux(w); |
2b97eabc | 2562 | break; |
2b97eabc | 2563 | case snd_soc_dapm_pga: |
d88429a6 | 2564 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2565 | dapm_new_pga(w); |
2b97eabc | 2566 | break; |
7ca3a18b | 2567 | default: |
2b97eabc RP |
2568 | break; |
2569 | } | |
b66a70d5 MB |
2570 | |
2571 | /* Read the initial power state from the device */ | |
2572 | if (w->reg >= 0) { | |
0445bdf4 | 2573 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2574 | val &= 1 << w->shift; |
2575 | if (w->invert) | |
2576 | val = !val; | |
2577 | ||
2578 | if (val) | |
2579 | w->power = 1; | |
2580 | } | |
2581 | ||
2b97eabc | 2582 | w->new = 1; |
d5d1e0be | 2583 | |
7508b12a | 2584 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2585 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2586 | } |
2587 | ||
ce6120cc | 2588 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df | 2589 | mutex_unlock(&dapm->card->dapm_mutex); |
2b97eabc RP |
2590 | return 0; |
2591 | } | |
2592 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2593 | ||
2594 | /** | |
2595 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2596 | * @kcontrol: mixer control | |
ac11a2b3 | 2597 | * @ucontrol: control element information |
2b97eabc RP |
2598 | * |
2599 | * Callback to get the value of a dapm mixer control. | |
2600 | * | |
2601 | * Returns 0 for success. | |
2602 | */ | |
2603 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2604 | struct snd_ctl_elem_value *ucontrol) | |
2605 | { | |
fafd2176 SW |
2606 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2607 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2608 | struct soc_mixer_control *mc = |
2609 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2610 | unsigned int reg = mc->reg; |
2611 | unsigned int shift = mc->shift; | |
4eaa9819 | 2612 | int max = mc->max; |
815ecf8d | 2613 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 BT |
2614 | unsigned int invert = mc->invert; |
2615 | ||
2616 | if (snd_soc_volsw_is_stereo(mc)) | |
2617 | dev_warn(widget->dapm->dev, | |
30a6a1a4 | 2618 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2619 | kcontrol->id.name); |
2b97eabc | 2620 | |
2b97eabc RP |
2621 | ucontrol->value.integer.value[0] = |
2622 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
da602ab8 | 2623 | if (invert) |
2b97eabc | 2624 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2625 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2626 | |
2627 | return 0; | |
2628 | } | |
2629 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2630 | ||
2631 | /** | |
2632 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2633 | * @kcontrol: mixer control | |
ac11a2b3 | 2634 | * @ucontrol: control element information |
2b97eabc RP |
2635 | * |
2636 | * Callback to set the value of a dapm mixer control. | |
2637 | * | |
2638 | * Returns 0 for success. | |
2639 | */ | |
2640 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2641 | struct snd_ctl_elem_value *ucontrol) | |
2642 | { | |
fafd2176 SW |
2643 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2644 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2645 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2646 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2647 | struct soc_mixer_control *mc = |
2648 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2649 | unsigned int reg = mc->reg; |
2650 | unsigned int shift = mc->shift; | |
4eaa9819 | 2651 | int max = mc->max; |
815ecf8d JS |
2652 | unsigned int mask = (1 << fls(max)) - 1; |
2653 | unsigned int invert = mc->invert; | |
e9cf7049 | 2654 | unsigned int val; |
97404f2e MB |
2655 | int connect, change; |
2656 | struct snd_soc_dapm_update update; | |
fafd2176 | 2657 | int wi; |
2b97eabc | 2658 | |
da602ab8 BT |
2659 | if (snd_soc_volsw_is_stereo(mc)) |
2660 | dev_warn(widget->dapm->dev, | |
30a6a1a4 | 2661 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2662 | kcontrol->id.name); |
2663 | ||
2b97eabc | 2664 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2665 | connect = !!val; |
2b97eabc RP |
2666 | |
2667 | if (invert) | |
a7a4ac86 | 2668 | val = max - val; |
e9cf7049 | 2669 | mask = mask << shift; |
2b97eabc | 2670 | val = val << shift; |
2b97eabc | 2671 | |
3cd04343 | 2672 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2673 | |
e9cf7049 | 2674 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2675 | if (change) { |
fafd2176 SW |
2676 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2677 | widget = wlist->widgets[wi]; | |
283375ce | 2678 | |
fafd2176 | 2679 | widget->value = val; |
97404f2e | 2680 | |
fafd2176 SW |
2681 | update.kcontrol = kcontrol; |
2682 | update.widget = widget; | |
2683 | update.reg = reg; | |
2684 | update.mask = mask; | |
2685 | update.val = val; | |
2686 | widget->dapm->update = &update; | |
97404f2e | 2687 | |
4edbb345 | 2688 | soc_dapm_mixer_update_power(widget, kcontrol, connect); |
fafd2176 SW |
2689 | |
2690 | widget->dapm->update = NULL; | |
2691 | } | |
283375ce MB |
2692 | } |
2693 | ||
a73fb2df | 2694 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2695 | return 0; |
2b97eabc RP |
2696 | } |
2697 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2698 | ||
2699 | /** | |
2700 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2701 | * @kcontrol: mixer control | |
ac11a2b3 | 2702 | * @ucontrol: control element information |
2b97eabc RP |
2703 | * |
2704 | * Callback to get the value of a dapm enumerated double mixer control. | |
2705 | * | |
2706 | * Returns 0 for success. | |
2707 | */ | |
2708 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2709 | struct snd_ctl_elem_value *ucontrol) | |
2710 | { | |
fafd2176 SW |
2711 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2712 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2713 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2714 | unsigned int val; |
2b97eabc | 2715 | |
2b97eabc | 2716 | val = snd_soc_read(widget->codec, e->reg); |
86767b7d | 2717 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2718 | if (e->shift_l != e->shift_r) |
2719 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2720 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2721 | |
2722 | return 0; | |
2723 | } | |
2724 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2725 | ||
2726 | /** | |
2727 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2728 | * @kcontrol: mixer control | |
ac11a2b3 | 2729 | * @ucontrol: control element information |
2b97eabc RP |
2730 | * |
2731 | * Callback to set the value of a dapm enumerated double mixer control. | |
2732 | * | |
2733 | * Returns 0 for success. | |
2734 | */ | |
2735 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2736 | struct snd_ctl_elem_value *ucontrol) | |
2737 | { | |
fafd2176 SW |
2738 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2739 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2740 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2741 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2742 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2743 | unsigned int val, mux, change; |
86767b7d | 2744 | unsigned int mask; |
97404f2e | 2745 | struct snd_soc_dapm_update update; |
fafd2176 | 2746 | int wi; |
2b97eabc | 2747 | |
f8ba0b7b | 2748 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2749 | return -EINVAL; |
2750 | mux = ucontrol->value.enumerated.item[0]; | |
2751 | val = mux << e->shift_l; | |
86767b7d | 2752 | mask = e->mask << e->shift_l; |
2b97eabc | 2753 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2754 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2755 | return -EINVAL; |
2756 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2757 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2758 | } |
2759 | ||
3cd04343 | 2760 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2761 | |
3a65577d | 2762 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2763 | if (change) { |
2764 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2765 | widget = wlist->widgets[wi]; | |
2766 | ||
2767 | widget->value = val; | |
1642e3d4 | 2768 | |
fafd2176 SW |
2769 | update.kcontrol = kcontrol; |
2770 | update.widget = widget; | |
2771 | update.reg = e->reg; | |
2772 | update.mask = mask; | |
2773 | update.val = val; | |
2774 | widget->dapm->update = &update; | |
1642e3d4 | 2775 | |
4edbb345 | 2776 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1642e3d4 | 2777 | |
fafd2176 SW |
2778 | widget->dapm->update = NULL; |
2779 | } | |
2780 | } | |
2b97eabc | 2781 | |
a73fb2df | 2782 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2783 | return change; |
2b97eabc RP |
2784 | } |
2785 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2786 | ||
d2b247a8 MB |
2787 | /** |
2788 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2789 | * @kcontrol: mixer control | |
2790 | * @ucontrol: control element information | |
2791 | * | |
2792 | * Returns 0 for success. | |
2793 | */ | |
2794 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2795 | struct snd_ctl_elem_value *ucontrol) | |
2796 | { | |
fafd2176 SW |
2797 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2798 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2799 | |
2800 | ucontrol->value.enumerated.item[0] = widget->value; | |
2801 | ||
2802 | return 0; | |
2803 | } | |
2804 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2805 | ||
2806 | /** | |
2807 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2808 | * @kcontrol: mixer control | |
2809 | * @ucontrol: control element information | |
2810 | * | |
2811 | * Returns 0 for success. | |
2812 | */ | |
2813 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2814 | struct snd_ctl_elem_value *ucontrol) | |
2815 | { | |
fafd2176 SW |
2816 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2817 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2818 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2819 | struct snd_soc_card *card = codec->card; |
d2b247a8 MB |
2820 | struct soc_enum *e = |
2821 | (struct soc_enum *)kcontrol->private_value; | |
2822 | int change; | |
2823 | int ret = 0; | |
fafd2176 | 2824 | int wi; |
d2b247a8 MB |
2825 | |
2826 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2827 | return -EINVAL; | |
2828 | ||
3cd04343 | 2829 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 MB |
2830 | |
2831 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2832 | if (change) { |
2833 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2834 | widget = wlist->widgets[wi]; | |
2835 | ||
2836 | widget->value = ucontrol->value.enumerated.item[0]; | |
2837 | ||
4edbb345 | 2838 | soc_dapm_mux_update_power(widget, kcontrol, widget->value, e); |
fafd2176 SW |
2839 | } |
2840 | } | |
d2b247a8 | 2841 | |
a73fb2df | 2842 | mutex_unlock(&card->dapm_mutex); |
d2b247a8 MB |
2843 | return ret; |
2844 | } | |
2845 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2846 | ||
2e72f8e3 PU |
2847 | /** |
2848 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2849 | * callback | |
2850 | * @kcontrol: mixer control | |
2851 | * @ucontrol: control element information | |
2852 | * | |
2853 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2854 | * | |
2855 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2856 | * used for handling bitfield coded enumeration for example. | |
2857 | * | |
2858 | * Returns 0 for success. | |
2859 | */ | |
2860 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2861 | struct snd_ctl_elem_value *ucontrol) | |
2862 | { | |
fafd2176 SW |
2863 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2864 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2865 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2866 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2867 | |
2868 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2869 | val = (reg_val >> e->shift_l) & e->mask; | |
2870 | for (mux = 0; mux < e->max; mux++) { | |
2871 | if (val == e->values[mux]) | |
2872 | break; | |
2873 | } | |
2874 | ucontrol->value.enumerated.item[0] = mux; | |
2875 | if (e->shift_l != e->shift_r) { | |
2876 | val = (reg_val >> e->shift_r) & e->mask; | |
2877 | for (mux = 0; mux < e->max; mux++) { | |
2878 | if (val == e->values[mux]) | |
2879 | break; | |
2880 | } | |
2881 | ucontrol->value.enumerated.item[1] = mux; | |
2882 | } | |
2883 | ||
2884 | return 0; | |
2885 | } | |
2886 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2887 | ||
2888 | /** | |
2889 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2890 | * callback | |
2891 | * @kcontrol: mixer control | |
2892 | * @ucontrol: control element information | |
2893 | * | |
2894 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2895 | * | |
2896 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2897 | * used for handling bitfield coded enumeration for example. | |
2898 | * | |
2899 | * Returns 0 for success. | |
2900 | */ | |
2901 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2902 | struct snd_ctl_elem_value *ucontrol) | |
2903 | { | |
fafd2176 SW |
2904 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2905 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2906 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2907 | struct snd_soc_card *card = codec->card; |
74155556 | 2908 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2909 | unsigned int val, mux, change; |
46f5822f | 2910 | unsigned int mask; |
97404f2e | 2911 | struct snd_soc_dapm_update update; |
fafd2176 | 2912 | int wi; |
2e72f8e3 PU |
2913 | |
2914 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2915 | return -EINVAL; | |
2916 | mux = ucontrol->value.enumerated.item[0]; | |
2917 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2918 | mask = e->mask << e->shift_l; | |
2919 | if (e->shift_l != e->shift_r) { | |
2920 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2921 | return -EINVAL; | |
2922 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2923 | mask |= e->mask << e->shift_r; | |
2924 | } | |
2925 | ||
3cd04343 | 2926 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2927 | |
3a65577d | 2928 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2929 | if (change) { |
2930 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2931 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2932 | |
fafd2176 | 2933 | widget->value = val; |
1642e3d4 | 2934 | |
fafd2176 SW |
2935 | update.kcontrol = kcontrol; |
2936 | update.widget = widget; | |
2937 | update.reg = e->reg; | |
2938 | update.mask = mask; | |
2939 | update.val = val; | |
2940 | widget->dapm->update = &update; | |
1642e3d4 | 2941 | |
4edbb345 | 2942 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
fafd2176 SW |
2943 | |
2944 | widget->dapm->update = NULL; | |
2945 | } | |
2946 | } | |
2e72f8e3 | 2947 | |
a73fb2df | 2948 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2949 | return change; |
2e72f8e3 PU |
2950 | } |
2951 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2952 | ||
8b37dbd2 MB |
2953 | /** |
2954 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2955 | * | |
2956 | * @kcontrol: mixer control | |
2957 | * @uinfo: control element information | |
2958 | * | |
2959 | * Callback to provide information about a pin switch control. | |
2960 | */ | |
2961 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2962 | struct snd_ctl_elem_info *uinfo) | |
2963 | { | |
2964 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2965 | uinfo->count = 1; | |
2966 | uinfo->value.integer.min = 0; | |
2967 | uinfo->value.integer.max = 1; | |
2968 | ||
2969 | return 0; | |
2970 | } | |
2971 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2972 | ||
2973 | /** | |
2974 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2975 | * | |
2976 | * @kcontrol: mixer control | |
2977 | * @ucontrol: Value | |
2978 | */ | |
2979 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2980 | struct snd_ctl_elem_value *ucontrol) | |
2981 | { | |
48a8c394 | 2982 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2983 | const char *pin = (const char *)kcontrol->private_value; |
2984 | ||
3cd04343 | 2985 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2986 | |
2987 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2988 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2989 | |
a73fb2df | 2990 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
2991 | |
2992 | return 0; | |
2993 | } | |
2994 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2995 | ||
2996 | /** | |
2997 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2998 | * | |
2999 | * @kcontrol: mixer control | |
3000 | * @ucontrol: Value | |
3001 | */ | |
3002 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3003 | struct snd_ctl_elem_value *ucontrol) | |
3004 | { | |
48a8c394 | 3005 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3006 | const char *pin = (const char *)kcontrol->private_value; |
3007 | ||
3cd04343 | 3008 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3009 | |
3010 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 3011 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3012 | else |
48a8c394 | 3013 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3014 | |
a73fb2df | 3015 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3016 | |
a73fb2df | 3017 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3018 | return 0; |
3019 | } | |
3020 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3021 | ||
5ba06fc9 MB |
3022 | static struct snd_soc_dapm_widget * |
3023 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3024 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3025 | { |
3026 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 3027 | size_t name_len; |
62ea874a | 3028 | int ret; |
2b97eabc RP |
3029 | |
3030 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3031 | return NULL; |
2b97eabc | 3032 | |
62ea874a MB |
3033 | switch (w->id) { |
3034 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3035 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3036 | if (IS_ERR(w->regulator)) { | |
3037 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3038 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3039 | w->name, ret); |
5ba06fc9 | 3040 | return NULL; |
62ea874a | 3041 | } |
8784c77a MB |
3042 | |
3043 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
3044 | ret = regulator_allow_bypass(w->regulator, true); | |
3045 | if (ret != 0) | |
3046 | dev_warn(w->dapm->dev, | |
3047 | "ASoC: Failed to unbypass %s: %d\n", | |
3048 | w->name, ret); | |
3049 | } | |
62ea874a | 3050 | break; |
d7e7eb91 | 3051 | case snd_soc_dapm_clock_supply: |
165961ef | 3052 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3053 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3054 | if (IS_ERR(w->clk)) { |
3055 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3056 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3057 | w->name, ret); |
3058 | return NULL; | |
3059 | } | |
ec02995a MB |
3060 | #else |
3061 | return NULL; | |
3062 | #endif | |
d7e7eb91 | 3063 | break; |
62ea874a MB |
3064 | default: |
3065 | break; | |
3066 | } | |
2b97eabc | 3067 | |
ead9b919 | 3068 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 3069 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
3070 | name_len += 1 + strlen(dapm->codec->name_prefix); |
3071 | w->name = kmalloc(name_len, GFP_KERNEL); | |
3072 | if (w->name == NULL) { | |
3073 | kfree(w); | |
5ba06fc9 | 3074 | return NULL; |
ead9b919 | 3075 | } |
88e8b9a8 | 3076 | if (dapm->codec && dapm->codec->name_prefix) |
888df395 | 3077 | snprintf((char *)w->name, name_len, "%s %s", |
ead9b919 JN |
3078 | dapm->codec->name_prefix, widget->name); |
3079 | else | |
888df395 | 3080 | snprintf((char *)w->name, name_len, "%s", widget->name); |
ead9b919 | 3081 | |
7ca3a18b MB |
3082 | switch (w->id) { |
3083 | case snd_soc_dapm_switch: | |
3084 | case snd_soc_dapm_mixer: | |
3085 | case snd_soc_dapm_mixer_named_ctl: | |
3086 | w->power_check = dapm_generic_check_power; | |
3087 | break; | |
3088 | case snd_soc_dapm_mux: | |
3089 | case snd_soc_dapm_virt_mux: | |
3090 | case snd_soc_dapm_value_mux: | |
3091 | w->power_check = dapm_generic_check_power; | |
3092 | break; | |
3093 | case snd_soc_dapm_adc: | |
3094 | case snd_soc_dapm_aif_out: | |
3095 | w->power_check = dapm_adc_check_power; | |
3096 | break; | |
3097 | case snd_soc_dapm_dac: | |
3098 | case snd_soc_dapm_aif_in: | |
3099 | w->power_check = dapm_dac_check_power; | |
3100 | break; | |
3101 | case snd_soc_dapm_pga: | |
3102 | case snd_soc_dapm_out_drv: | |
3103 | case snd_soc_dapm_input: | |
3104 | case snd_soc_dapm_output: | |
3105 | case snd_soc_dapm_micbias: | |
3106 | case snd_soc_dapm_spk: | |
3107 | case snd_soc_dapm_hp: | |
3108 | case snd_soc_dapm_mic: | |
3109 | case snd_soc_dapm_line: | |
c74184ed | 3110 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3111 | w->power_check = dapm_generic_check_power; |
3112 | break; | |
3113 | case snd_soc_dapm_supply: | |
62ea874a | 3114 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3115 | case snd_soc_dapm_clock_supply: |
7ca3a18b MB |
3116 | w->power_check = dapm_supply_check_power; |
3117 | break; | |
888df395 MB |
3118 | case snd_soc_dapm_dai: |
3119 | w->power_check = dapm_dai_check_power; | |
3120 | break; | |
7ca3a18b MB |
3121 | default: |
3122 | w->power_check = dapm_always_on_check_power; | |
3123 | break; | |
3124 | } | |
3125 | ||
97c866de | 3126 | dapm->n_widgets++; |
ce6120cc LG |
3127 | w->dapm = dapm; |
3128 | w->codec = dapm->codec; | |
b7950641 | 3129 | w->platform = dapm->platform; |
2b97eabc RP |
3130 | INIT_LIST_HEAD(&w->sources); |
3131 | INIT_LIST_HEAD(&w->sinks); | |
3132 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3133 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3134 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3135 | |
3136 | /* machine layer set ups unconnected pins and insertions */ | |
3137 | w->connected = 1; | |
5ba06fc9 | 3138 | return w; |
2b97eabc | 3139 | } |
2b97eabc | 3140 | |
4ba1327a MB |
3141 | /** |
3142 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3143 | * @dapm: DAPM context |
4ba1327a MB |
3144 | * @widget: widget array |
3145 | * @num: number of widgets | |
3146 | * | |
3147 | * Creates new DAPM controls based upon the templates. | |
3148 | * | |
3149 | * Returns 0 for success else error. | |
3150 | */ | |
ce6120cc | 3151 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3152 | const struct snd_soc_dapm_widget *widget, |
3153 | int num) | |
3154 | { | |
5ba06fc9 MB |
3155 | struct snd_soc_dapm_widget *w; |
3156 | int i; | |
60884c27 | 3157 | int ret = 0; |
4ba1327a | 3158 | |
a73fb2df | 3159 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3160 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3161 | w = snd_soc_dapm_new_control(dapm, widget); |
3162 | if (!w) { | |
f7d41ae8 | 3163 | dev_err(dapm->dev, |
5ba06fc9 MB |
3164 | "ASoC: Failed to create DAPM control %s\n", |
3165 | widget->name); | |
60884c27 DC |
3166 | ret = -ENOMEM; |
3167 | break; | |
b8b33cb5 | 3168 | } |
4ba1327a MB |
3169 | widget++; |
3170 | } | |
a73fb2df | 3171 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3172 | return ret; |
4ba1327a MB |
3173 | } |
3174 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3175 | ||
c74184ed MB |
3176 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3177 | struct snd_kcontrol *kcontrol, int event) | |
3178 | { | |
3179 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3180 | struct snd_soc_dai *source, *sink; | |
3181 | const struct snd_soc_pcm_stream *config = w->params; | |
3182 | struct snd_pcm_substream substream; | |
9747cec2 | 3183 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3184 | u64 fmt; |
3185 | int ret; | |
3186 | ||
3187 | BUG_ON(!config); | |
3188 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3189 | ||
3190 | /* We only support a single source and sink, pick the first */ | |
3191 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3192 | list_sink); | |
3193 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3194 | list_source); | |
3195 | ||
3196 | BUG_ON(!source_p || !sink_p); | |
3197 | BUG_ON(!sink_p->source || !source_p->sink); | |
3198 | BUG_ON(!source_p->source || !sink_p->sink); | |
3199 | ||
3200 | source = source_p->source->priv; | |
3201 | sink = sink_p->sink->priv; | |
3202 | ||
3203 | /* Be a little careful as we don't want to overflow the mask array */ | |
3204 | if (config->formats) { | |
3205 | fmt = ffs(config->formats) - 1; | |
3206 | } else { | |
30a6a1a4 | 3207 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3208 | config->formats); |
3209 | fmt = 0; | |
3210 | } | |
3211 | ||
3212 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3213 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3214 | if (!params) { | |
3215 | ret = -ENOMEM; | |
3216 | goto out; | |
3217 | } | |
3218 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3219 | |
9747cec2 | 3220 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3221 | config->rate_min; |
9747cec2 | 3222 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3223 | config->rate_max; |
3224 | ||
9747cec2 | 3225 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3226 | = config->channels_min; |
9747cec2 | 3227 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3228 | = config->channels_max; |
3229 | ||
3230 | memset(&substream, 0, sizeof(substream)); | |
3231 | ||
3232 | switch (event) { | |
3233 | case SND_SOC_DAPM_PRE_PMU: | |
3234 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3235 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3236 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3237 | params, source); |
c74184ed MB |
3238 | if (ret != 0) { |
3239 | dev_err(source->dev, | |
30a6a1a4 | 3240 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3241 | goto out; |
c74184ed MB |
3242 | } |
3243 | } | |
3244 | ||
3245 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3246 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3247 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3248 | sink); |
3249 | if (ret != 0) { | |
3250 | dev_err(sink->dev, | |
30a6a1a4 | 3251 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3252 | goto out; |
c74184ed MB |
3253 | } |
3254 | } | |
3255 | break; | |
3256 | ||
3257 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3258 | ret = snd_soc_dai_digital_mute(sink, 0, |
3259 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3260 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3261 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3262 | ret = 0; |
c74184ed MB |
3263 | break; |
3264 | ||
3265 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3266 | ret = snd_soc_dai_digital_mute(sink, 1, |
3267 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3268 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3269 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3270 | ret = 0; |
c74184ed MB |
3271 | break; |
3272 | ||
3273 | default: | |
3274 | BUG(); | |
3275 | return -EINVAL; | |
3276 | } | |
3277 | ||
9747cec2 MB |
3278 | out: |
3279 | kfree(params); | |
3280 | return ret; | |
c74184ed MB |
3281 | } |
3282 | ||
3283 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3284 | const struct snd_soc_pcm_stream *params, | |
3285 | struct snd_soc_dapm_widget *source, | |
3286 | struct snd_soc_dapm_widget *sink) | |
3287 | { | |
3288 | struct snd_soc_dapm_route routes[2]; | |
3289 | struct snd_soc_dapm_widget template; | |
3290 | struct snd_soc_dapm_widget *w; | |
3291 | size_t len; | |
3292 | char *link_name; | |
3293 | ||
3294 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3295 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3296 | if (!link_name) | |
3297 | return -ENOMEM; | |
3298 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3299 | ||
3300 | memset(&template, 0, sizeof(template)); | |
3301 | template.reg = SND_SOC_NOPM; | |
3302 | template.id = snd_soc_dapm_dai_link; | |
3303 | template.name = link_name; | |
3304 | template.event = snd_soc_dai_link_event; | |
3305 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3306 | SND_SOC_DAPM_PRE_PMD; | |
3307 | ||
30a6a1a4 | 3308 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3309 | |
3310 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3311 | if (!w) { | |
30a6a1a4 | 3312 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3313 | link_name); |
3314 | return -ENOMEM; | |
3315 | } | |
3316 | ||
3317 | w->params = params; | |
3318 | ||
3319 | memset(&routes, 0, sizeof(routes)); | |
3320 | ||
3321 | routes[0].source = source->name; | |
3322 | routes[0].sink = link_name; | |
3323 | routes[1].source = link_name; | |
3324 | routes[1].sink = sink->name; | |
3325 | ||
3326 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3327 | ARRAY_SIZE(routes)); | |
3328 | } | |
3329 | ||
888df395 MB |
3330 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3331 | struct snd_soc_dai *dai) | |
2b97eabc | 3332 | { |
888df395 | 3333 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3334 | struct snd_soc_dapm_widget *w; |
3335 | ||
888df395 MB |
3336 | WARN_ON(dapm->dev != dai->dev); |
3337 | ||
3338 | memset(&template, 0, sizeof(template)); | |
3339 | template.reg = SND_SOC_NOPM; | |
3340 | ||
3341 | if (dai->driver->playback.stream_name) { | |
3342 | template.id = snd_soc_dapm_dai; | |
3343 | template.name = dai->driver->playback.stream_name; | |
3344 | template.sname = dai->driver->playback.stream_name; | |
3345 | ||
30a6a1a4 | 3346 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3347 | template.name); |
3348 | ||
3349 | w = snd_soc_dapm_new_control(dapm, &template); | |
3350 | if (!w) { | |
30a6a1a4 | 3351 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3352 | dai->driver->playback.stream_name); |
3353 | } | |
3354 | ||
3355 | w->priv = dai; | |
3356 | dai->playback_widget = w; | |
3357 | } | |
3358 | ||
3359 | if (dai->driver->capture.stream_name) { | |
3360 | template.id = snd_soc_dapm_dai; | |
3361 | template.name = dai->driver->capture.stream_name; | |
3362 | template.sname = dai->driver->capture.stream_name; | |
3363 | ||
30a6a1a4 | 3364 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3365 | template.name); |
3366 | ||
3367 | w = snd_soc_dapm_new_control(dapm, &template); | |
3368 | if (!w) { | |
30a6a1a4 | 3369 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3370 | dai->driver->capture.stream_name); |
3371 | } | |
3372 | ||
3373 | w->priv = dai; | |
3374 | dai->capture_widget = w; | |
3375 | } | |
3376 | ||
3377 | return 0; | |
3378 | } | |
3379 | ||
3380 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3381 | { | |
3382 | struct snd_soc_dapm_widget *dai_w, *w; | |
3383 | struct snd_soc_dai *dai; | |
3384 | struct snd_soc_dapm_route r; | |
3385 | ||
3386 | memset(&r, 0, sizeof(r)); | |
3387 | ||
3388 | /* For each DAI widget... */ | |
3389 | list_for_each_entry(dai_w, &card->widgets, list) { | |
3390 | if (dai_w->id != snd_soc_dapm_dai) | |
2b97eabc | 3391 | continue; |
888df395 MB |
3392 | |
3393 | dai = dai_w->priv; | |
3394 | ||
3395 | /* ...find all widgets with the same stream and link them */ | |
3396 | list_for_each_entry(w, &card->widgets, list) { | |
3397 | if (w->dapm != dai_w->dapm) | |
3398 | continue; | |
3399 | ||
3400 | if (w->id == snd_soc_dapm_dai) | |
3401 | continue; | |
3402 | ||
3403 | if (!w->sname) | |
3404 | continue; | |
3405 | ||
3406 | if (dai->driver->playback.stream_name && | |
3407 | strstr(w->sname, | |
3408 | dai->driver->playback.stream_name)) { | |
3409 | r.source = dai->playback_widget->name; | |
3410 | r.sink = w->name; | |
3411 | dev_dbg(dai->dev, "%s -> %s\n", | |
3412 | r.source, r.sink); | |
3413 | ||
3414 | snd_soc_dapm_add_route(w->dapm, &r); | |
3415 | } | |
3416 | ||
3417 | if (dai->driver->capture.stream_name && | |
3418 | strstr(w->sname, | |
3419 | dai->driver->capture.stream_name)) { | |
3420 | r.source = w->name; | |
3421 | r.sink = dai->capture_widget->name; | |
3422 | dev_dbg(dai->dev, "%s -> %s\n", | |
3423 | r.source, r.sink); | |
3424 | ||
3425 | snd_soc_dapm_add_route(w->dapm, &r); | |
2b97eabc RP |
3426 | } |
3427 | } | |
3428 | } | |
2b97eabc | 3429 | |
888df395 MB |
3430 | return 0; |
3431 | } | |
64a648c2 | 3432 | |
d9b0951b LG |
3433 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3434 | int event) | |
2b97eabc | 3435 | { |
7bd3a6f3 | 3436 | |
d9b0951b LG |
3437 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3438 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3439 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3440 | |
d9b0951b LG |
3441 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3442 | w_cpu = cpu_dai->playback_widget; | |
3443 | w_codec = codec_dai->playback_widget; | |
3444 | } else { | |
3445 | w_cpu = cpu_dai->capture_widget; | |
3446 | w_codec = codec_dai->capture_widget; | |
3447 | } | |
2b97eabc | 3448 | |
d9b0951b | 3449 | if (w_cpu) { |
fe360685 | 3450 | |
d9b0951b LG |
3451 | dapm_mark_dirty(w_cpu, "stream event"); |
3452 | ||
3453 | switch (event) { | |
3454 | case SND_SOC_DAPM_STREAM_START: | |
3455 | w_cpu->active = 1; | |
3456 | break; | |
3457 | case SND_SOC_DAPM_STREAM_STOP: | |
3458 | w_cpu->active = 0; | |
3459 | break; | |
3460 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3461 | case SND_SOC_DAPM_STREAM_RESUME: | |
3462 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3463 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3464 | break; | |
3465 | } | |
3466 | } | |
3467 | ||
3468 | if (w_codec) { | |
3469 | ||
3470 | dapm_mark_dirty(w_codec, "stream event"); | |
3471 | ||
3472 | switch (event) { | |
3473 | case SND_SOC_DAPM_STREAM_START: | |
3474 | w_codec->active = 1; | |
3475 | break; | |
3476 | case SND_SOC_DAPM_STREAM_STOP: | |
3477 | w_codec->active = 0; | |
3478 | break; | |
3479 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3480 | case SND_SOC_DAPM_STREAM_RESUME: | |
3481 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3482 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3483 | break; | |
3484 | } | |
2b97eabc | 3485 | } |
2b97eabc | 3486 | |
d9b0951b | 3487 | dapm_power_widgets(&rtd->card->dapm, event); |
ce6120cc LG |
3488 | } |
3489 | ||
3490 | /** | |
3491 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3492 | * @rtd: PCM runtime data | |
3493 | * @stream: stream name | |
3494 | * @event: stream event | |
3495 | * | |
3496 | * Sends a stream event to the dapm core. The core then makes any | |
3497 | * necessary widget power changes. | |
3498 | * | |
3499 | * Returns 0 for success else error. | |
3500 | */ | |
d9b0951b LG |
3501 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3502 | int event) | |
ce6120cc | 3503 | { |
a73fb2df | 3504 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3505 | |
3cd04343 | 3506 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3507 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3508 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3509 | } |
2b97eabc RP |
3510 | |
3511 | /** | |
a5302181 | 3512 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3513 | * @dapm: DAPM context |
a5302181 | 3514 | * @pin: pin name |
2b97eabc | 3515 | * |
74b8f955 | 3516 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3517 | * a valid audio route and active audio stream. |
3518 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3519 | * do any widget power switching. | |
2b97eabc | 3520 | */ |
ce6120cc | 3521 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3522 | { |
ce6120cc | 3523 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3524 | } |
3525 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3526 | |
da34183e MB |
3527 | /** |
3528 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3529 | * @dapm: DAPM context |
da34183e MB |
3530 | * @pin: pin name |
3531 | * | |
3532 | * Enables input/output pin regardless of any other state. This is | |
3533 | * intended for use with microphone bias supplies used in microphone | |
3534 | * jack detection. | |
3535 | * | |
3536 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3537 | * do any widget power switching. | |
3538 | */ | |
ce6120cc LG |
3539 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3540 | const char *pin) | |
da34183e | 3541 | { |
91a5fca4 | 3542 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3543 | |
91a5fca4 | 3544 | if (!w) { |
30a6a1a4 | 3545 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3546 | return -EINVAL; |
0d86733c MB |
3547 | } |
3548 | ||
30a6a1a4 | 3549 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3550 | w->connected = 1; |
3551 | w->force = 1; | |
75c1f891 | 3552 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3553 | |
91a5fca4 | 3554 | return 0; |
da34183e MB |
3555 | } |
3556 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3557 | ||
a5302181 LG |
3558 | /** |
3559 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3560 | * @dapm: DAPM context |
a5302181 LG |
3561 | * @pin: pin name |
3562 | * | |
74b8f955 | 3563 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3564 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3565 | * do any widget power switching. | |
3566 | */ | |
ce6120cc LG |
3567 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3568 | const char *pin) | |
a5302181 | 3569 | { |
ce6120cc | 3570 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3571 | } |
a5302181 | 3572 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3573 | |
5817b52a MB |
3574 | /** |
3575 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3576 | * @dapm: DAPM context |
5817b52a MB |
3577 | * @pin: pin name |
3578 | * | |
3579 | * Marks the specified pin as being not connected, disabling it along | |
3580 | * any parent or child widgets. At present this is identical to | |
3581 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3582 | * additional things such as disabling controls which only affect | |
3583 | * paths through the pin. | |
3584 | * | |
3585 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3586 | * do any widget power switching. | |
3587 | */ | |
ce6120cc | 3588 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3589 | { |
ce6120cc | 3590 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3591 | } |
3592 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3593 | ||
eeec12bf | 3594 | /** |
a5302181 | 3595 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3596 | * @dapm: DAPM context |
a5302181 | 3597 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3598 | * |
a5302181 | 3599 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3600 | * |
a5302181 | 3601 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3602 | */ |
ce6120cc LG |
3603 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3604 | const char *pin) | |
eeec12bf | 3605 | { |
91a5fca4 | 3606 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3607 | |
91a5fca4 LPC |
3608 | if (w) |
3609 | return w->connected; | |
a68b38ad | 3610 | |
eeec12bf GG |
3611 | return 0; |
3612 | } | |
a5302181 | 3613 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3614 | |
1547aba9 MB |
3615 | /** |
3616 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3617 | * @dapm: DAPM context |
1547aba9 MB |
3618 | * @pin: audio signal pin endpoint (or start point) |
3619 | * | |
3620 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3621 | * system is disabled a path between two endpoints flagged as ignoring | |
3622 | * suspend will not be disabled. The path must already be enabled via | |
3623 | * normal means at suspend time, it will not be turned on if it was not | |
3624 | * already enabled. | |
3625 | */ | |
ce6120cc LG |
3626 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3627 | const char *pin) | |
1547aba9 | 3628 | { |
91a5fca4 | 3629 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3630 | |
91a5fca4 | 3631 | if (!w) { |
30a6a1a4 | 3632 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3633 | return -EINVAL; |
1547aba9 MB |
3634 | } |
3635 | ||
91a5fca4 LPC |
3636 | w->ignore_suspend = 1; |
3637 | ||
3638 | return 0; | |
1547aba9 MB |
3639 | } |
3640 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3641 | ||
1633281b SW |
3642 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3643 | struct snd_soc_dapm_widget *w) | |
3644 | { | |
3645 | struct snd_soc_dapm_path *p; | |
3646 | ||
3647 | list_for_each_entry(p, &card->paths, list) { | |
3648 | if ((p->source == w) || (p->sink == w)) { | |
3649 | dev_dbg(card->dev, | |
3650 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3651 | p->source->name, p->source->id, p->source->dapm, | |
3652 | p->sink->name, p->sink->id, p->sink->dapm); | |
3653 | ||
3654 | /* Connected to something other than the codec */ | |
3655 | if (p->source->dapm != p->sink->dapm) | |
3656 | return true; | |
3657 | /* | |
3658 | * Loopback connection from codec external pin to | |
3659 | * codec external pin | |
3660 | */ | |
3661 | if (p->sink->id == snd_soc_dapm_input) { | |
3662 | switch (p->source->id) { | |
3663 | case snd_soc_dapm_output: | |
3664 | case snd_soc_dapm_micbias: | |
3665 | return true; | |
3666 | default: | |
3667 | break; | |
3668 | } | |
3669 | } | |
3670 | } | |
3671 | } | |
3672 | ||
3673 | return false; | |
3674 | } | |
3675 | ||
3676 | /** | |
3677 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3678 | * @codec: The codec whose pins should be processed | |
3679 | * | |
3680 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3681 | * which are unused. Pins are used if they are connected externally to the | |
3682 | * codec, whether that be to some other device, or a loop-back connection to | |
3683 | * the codec itself. | |
3684 | */ | |
3685 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3686 | { | |
3687 | struct snd_soc_card *card = codec->card; | |
3688 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3689 | struct snd_soc_dapm_widget *w; | |
3690 | ||
30a6a1a4 | 3691 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3692 | &card->dapm, &codec->dapm); |
3693 | ||
3694 | list_for_each_entry(w, &card->widgets, list) { | |
3695 | if (w->dapm != dapm) | |
3696 | continue; | |
3697 | switch (w->id) { | |
3698 | case snd_soc_dapm_input: | |
3699 | case snd_soc_dapm_output: | |
3700 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3701 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3702 | w->name); |
3703 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3704 | dev_dbg(codec->dev, |
1633281b SW |
3705 | "... Not in map; disabling\n"); |
3706 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3707 | } | |
3708 | break; | |
3709 | default: | |
3710 | break; | |
3711 | } | |
3712 | } | |
3713 | } | |
3714 | ||
2b97eabc RP |
3715 | /** |
3716 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3717 | * @dapm: DAPM context |
2b97eabc RP |
3718 | * |
3719 | * Free all dapm widgets and resources. | |
3720 | */ | |
ce6120cc | 3721 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3722 | { |
ce6120cc | 3723 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3724 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3725 | dapm_free_widgets(dapm); |
7be31be8 | 3726 | list_del(&dapm->list); |
2b97eabc RP |
3727 | } |
3728 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3729 | ||
ce6120cc | 3730 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3731 | { |
01005a72 | 3732 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3733 | struct snd_soc_dapm_widget *w; |
3734 | LIST_HEAD(down_list); | |
3735 | int powerdown = 0; | |
3736 | ||
01005a72 LG |
3737 | mutex_lock(&card->dapm_mutex); |
3738 | ||
97c866de JN |
3739 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3740 | if (w->dapm != dapm) | |
3741 | continue; | |
51737470 | 3742 | if (w->power) { |
828a842f | 3743 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3744 | w->power = 0; |
51737470 MB |
3745 | powerdown = 1; |
3746 | } | |
3747 | } | |
3748 | ||
3749 | /* If there were no widgets to power down we're already in | |
3750 | * standby. | |
3751 | */ | |
3752 | if (powerdown) { | |
7679e42e MB |
3753 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3754 | snd_soc_dapm_set_bias_level(dapm, | |
3755 | SND_SOC_BIAS_PREPARE); | |
828a842f | 3756 | dapm_seq_run(dapm, &down_list, 0, false); |
7679e42e MB |
3757 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3758 | snd_soc_dapm_set_bias_level(dapm, | |
3759 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3760 | } |
01005a72 LG |
3761 | |
3762 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3763 | } |
3764 | ||
3765 | /* | |
3766 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3767 | */ | |
3768 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3769 | { | |
3770 | struct snd_soc_codec *codec; | |
3771 | ||
445632ad | 3772 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3773 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3774 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3775 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3776 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3777 | } |
51737470 MB |
3778 | } |
3779 | ||
2b97eabc | 3780 | /* Module information */ |
d331124d | 3781 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3782 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3783 | MODULE_LICENSE("GPL"); |