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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 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 | ||
85762e71 SW |
507 | /* |
508 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
509 | * create it. Either way, add the widget into the control's widget list | |
510 | */ | |
511 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
512 | int kci, struct snd_soc_dapm_path *path) | |
2b97eabc | 513 | { |
4b80b8c2 | 514 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 515 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 516 | const char *prefix; |
85762e71 SW |
517 | size_t prefix_len; |
518 | int shared; | |
519 | struct snd_kcontrol *kcontrol; | |
fafd2176 | 520 | struct snd_soc_dapm_widget_list *wlist; |
85762e71 | 521 | int wlistentries; |
fafd2176 | 522 | size_t wlistsize; |
85762e71 SW |
523 | bool wname_in_long_name, kcname_in_long_name; |
524 | size_t name_len; | |
525 | char *long_name; | |
526 | const char *name; | |
527 | int ret; | |
efb7ac3f MB |
528 | |
529 | if (dapm->codec) | |
530 | prefix = dapm->codec->name_prefix; | |
531 | else | |
532 | prefix = NULL; | |
2b97eabc | 533 | |
3e5ff4df MB |
534 | if (prefix) |
535 | prefix_len = strlen(prefix) + 1; | |
536 | else | |
537 | prefix_len = 0; | |
538 | ||
85762e71 SW |
539 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
540 | &kcontrol); | |
2b97eabc | 541 | |
85762e71 SW |
542 | if (kcontrol) { |
543 | wlist = kcontrol->private_data; | |
544 | wlistentries = wlist->num_widgets + 1; | |
545 | } else { | |
546 | wlist = NULL; | |
547 | wlistentries = 1; | |
548 | } | |
2b97eabc | 549 | |
85762e71 SW |
550 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
551 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
552 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
553 | if (wlist == NULL) { | |
554 | dev_err(dapm->dev, "ASoC: can't allocate widget list for %s\n", | |
555 | w->name); | |
556 | return -ENOMEM; | |
557 | } | |
558 | wlist->num_widgets = wlistentries; | |
559 | wlist->widgets[wlistentries - 1] = w; | |
2b97eabc | 560 | |
85762e71 SW |
561 | if (!kcontrol) { |
562 | if (shared) { | |
563 | wname_in_long_name = false; | |
564 | kcname_in_long_name = true; | |
565 | } else { | |
566 | switch (w->id) { | |
567 | case snd_soc_dapm_switch: | |
568 | case snd_soc_dapm_mixer: | |
569 | wname_in_long_name = true; | |
570 | kcname_in_long_name = true; | |
571 | break; | |
572 | case snd_soc_dapm_mixer_named_ctl: | |
573 | wname_in_long_name = false; | |
574 | kcname_in_long_name = true; | |
575 | break; | |
576 | case snd_soc_dapm_mux: | |
577 | case snd_soc_dapm_virt_mux: | |
578 | case snd_soc_dapm_value_mux: | |
579 | wname_in_long_name = true; | |
580 | kcname_in_long_name = false; | |
581 | break; | |
582 | default: | |
583 | kfree(wlist); | |
584 | return -EINVAL; | |
82cd8764 | 585 | } |
85762e71 SW |
586 | } |
587 | ||
588 | if (wname_in_long_name && kcname_in_long_name) { | |
589 | name_len = strlen(w->name) - prefix_len + 1 + | |
590 | strlen(w->kcontrol_news[kci].name) + 1; | |
82cd8764 | 591 | |
85762e71 SW |
592 | long_name = kmalloc(name_len, GFP_KERNEL); |
593 | if (long_name == NULL) { | |
594 | kfree(wlist); | |
fafd2176 SW |
595 | return -ENOMEM; |
596 | } | |
85762e71 SW |
597 | |
598 | /* | |
599 | * The control will get a prefix from the control | |
600 | * creation process but we're also using the same | |
601 | * prefix for widgets so cut the prefix off the | |
602 | * front of the widget name. | |
ca9c1aae | 603 | */ |
85762e71 SW |
604 | snprintf(long_name, name_len, "%s %s", |
605 | w->name + prefix_len, | |
606 | w->kcontrol_news[kci].name); | |
607 | long_name[name_len - 1] = '\0'; | |
608 | ||
609 | name = long_name; | |
610 | } else if (wname_in_long_name) { | |
611 | long_name = NULL; | |
612 | name = w->name + prefix_len; | |
613 | } else { | |
614 | long_name = NULL; | |
615 | name = w->kcontrol_news[kci].name; | |
616 | } | |
ca9c1aae | 617 | |
85762e71 SW |
618 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], wlist, name, |
619 | prefix); | |
620 | ret = snd_ctl_add(card, kcontrol); | |
621 | if (ret < 0) { | |
622 | dev_err(dapm->dev, | |
623 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
624 | w->name, name, ret); | |
625 | kfree(wlist); | |
626 | kfree(long_name); | |
627 | return ret; | |
628 | } | |
ca9c1aae | 629 | |
85762e71 SW |
630 | path->long_name = long_name; |
631 | } | |
2b97eabc | 632 | |
85762e71 SW |
633 | kcontrol->private_data = wlist; |
634 | w->kcontrols[kci] = kcontrol; | |
635 | path->kcontrol = kcontrol; | |
ca9c1aae | 636 | |
85762e71 SW |
637 | return 0; |
638 | } | |
219b93f5 | 639 | |
85762e71 SW |
640 | /* create new dapm mixer control */ |
641 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) | |
642 | { | |
643 | int i, ret; | |
644 | struct snd_soc_dapm_path *path; | |
645 | ||
646 | /* add kcontrol */ | |
647 | for (i = 0; i < w->num_kcontrols; i++) { | |
648 | /* match name */ | |
649 | list_for_each_entry(path, &w->sources, list_sink) { | |
650 | /* mixer/mux paths name must match control name */ | |
651 | if (path->name != (char *)w->kcontrol_news[i].name) | |
652 | continue; | |
653 | ||
654 | if (w->kcontrols[i]) { | |
655 | path->kcontrol = w->kcontrols[i]; | |
656 | continue; | |
2b97eabc | 657 | } |
85762e71 SW |
658 | |
659 | ret = dapm_create_or_share_mixmux_kcontrol(w, i, path); | |
660 | if (ret < 0) | |
661 | return ret; | |
2b97eabc RP |
662 | } |
663 | } | |
85762e71 SW |
664 | |
665 | return 0; | |
2b97eabc RP |
666 | } |
667 | ||
668 | /* create new dapm mux control */ | |
4b80b8c2 | 669 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 670 | { |
4b80b8c2 | 671 | struct snd_soc_dapm_context *dapm = w->dapm; |
85762e71 | 672 | struct snd_soc_dapm_path *path; |
af46800b | 673 | int ret; |
2b97eabc | 674 | |
af46800b SW |
675 | if (w->num_kcontrols != 1) { |
676 | dev_err(dapm->dev, | |
30a6a1a4 | 677 | "ASoC: mux %s has incorrect number of controls\n", |
af46800b | 678 | w->name); |
2b97eabc RP |
679 | return -EINVAL; |
680 | } | |
681 | ||
85762e71 SW |
682 | path = list_first_entry(&w->sources, struct snd_soc_dapm_path, |
683 | list_sink); | |
684 | if (!path) { | |
685 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); | |
686 | return -EINVAL; | |
af46800b | 687 | } |
ce6120cc | 688 | |
85762e71 SW |
689 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0, path); |
690 | if (ret < 0) | |
691 | return ret; | |
fad59888 | 692 | |
2b97eabc | 693 | list_for_each_entry(path, &w->sources, list_sink) |
85762e71 | 694 | path->kcontrol = w->kcontrols[0]; |
2b97eabc | 695 | |
af46800b | 696 | return 0; |
2b97eabc RP |
697 | } |
698 | ||
699 | /* create new dapm volume control */ | |
4b80b8c2 | 700 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 701 | { |
a6c65736 | 702 | if (w->num_kcontrols) |
f7d41ae8 | 703 | dev_err(w->dapm->dev, |
30a6a1a4 | 704 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 705 | |
a6c65736 | 706 | return 0; |
2b97eabc RP |
707 | } |
708 | ||
709 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
710 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
711 | struct list_head *sink) | |
2b97eabc RP |
712 | { |
713 | struct snd_soc_dapm_path *p; | |
714 | ||
1059ecfa RT |
715 | list_for_each_entry(p, sink, list_source) { |
716 | if (p->walked) { | |
717 | p->walked = 0; | |
718 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
719 | } | |
720 | } | |
2b97eabc RP |
721 | } |
722 | ||
1059ecfa RT |
723 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
724 | struct list_head *source) | |
2b97eabc RP |
725 | { |
726 | struct snd_soc_dapm_path *p; | |
727 | ||
1059ecfa RT |
728 | list_for_each_entry(p, source, list_sink) { |
729 | if (p->walked) { | |
730 | p->walked = 0; | |
731 | dapm_clear_walk_input(dapm, &p->source->sources); | |
732 | } | |
733 | } | |
2b97eabc RP |
734 | } |
735 | ||
1059ecfa | 736 | |
9949788b MB |
737 | /* We implement power down on suspend by checking the power state of |
738 | * the ALSA card - when we are suspending the ALSA state for the card | |
739 | * is set to D3. | |
740 | */ | |
741 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
742 | { | |
12ea2c78 | 743 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 744 | |
f0fba2ad | 745 | switch (level) { |
9949788b MB |
746 | case SNDRV_CTL_POWER_D3hot: |
747 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 748 | if (widget->ignore_suspend) |
30a6a1a4 | 749 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 750 | widget->name); |
1547aba9 | 751 | return widget->ignore_suspend; |
9949788b MB |
752 | default: |
753 | return 1; | |
754 | } | |
755 | } | |
756 | ||
ec2e3031 LG |
757 | /* add widget to list if it's not already in the list */ |
758 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
759 | struct snd_soc_dapm_widget *w) | |
760 | { | |
761 | struct snd_soc_dapm_widget_list *wlist; | |
762 | int wlistsize, wlistentries, i; | |
763 | ||
764 | if (*list == NULL) | |
765 | return -EINVAL; | |
766 | ||
767 | wlist = *list; | |
768 | ||
769 | /* is this widget already in the list */ | |
770 | for (i = 0; i < wlist->num_widgets; i++) { | |
771 | if (wlist->widgets[i] == w) | |
772 | return 0; | |
773 | } | |
774 | ||
775 | /* allocate some new space */ | |
776 | wlistentries = wlist->num_widgets + 1; | |
777 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
778 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
779 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
780 | if (*list == NULL) { | |
30a6a1a4 | 781 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
782 | w->name); |
783 | return -ENOMEM; | |
784 | } | |
785 | wlist = *list; | |
786 | ||
787 | /* insert the widget */ | |
30a6a1a4 | 788 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
789 | w->name, wlist->num_widgets); |
790 | ||
791 | wlist->widgets[wlist->num_widgets] = w; | |
792 | wlist->num_widgets++; | |
793 | return 1; | |
794 | } | |
795 | ||
2b97eabc RP |
796 | /* |
797 | * Recursively check for a completed path to an active or physically connected | |
798 | * output widget. Returns number of complete paths. | |
799 | */ | |
ec2e3031 LG |
800 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
801 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
802 | { |
803 | struct snd_soc_dapm_path *path; | |
804 | int con = 0; | |
805 | ||
024dc078 MB |
806 | if (widget->outputs >= 0) |
807 | return widget->outputs; | |
808 | ||
de02d078 MB |
809 | DAPM_UPDATE_STAT(widget, path_checks); |
810 | ||
62ea874a MB |
811 | switch (widget->id) { |
812 | case snd_soc_dapm_supply: | |
813 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 814 | case snd_soc_dapm_clock_supply: |
246d0a17 | 815 | return 0; |
62ea874a MB |
816 | default: |
817 | break; | |
818 | } | |
246d0a17 | 819 | |
010ff262 MB |
820 | switch (widget->id) { |
821 | case snd_soc_dapm_adc: | |
822 | case snd_soc_dapm_aif_out: | |
888df395 | 823 | case snd_soc_dapm_dai: |
024dc078 MB |
824 | if (widget->active) { |
825 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
826 | return widget->outputs; | |
827 | } | |
010ff262 MB |
828 | default: |
829 | break; | |
830 | } | |
2b97eabc RP |
831 | |
832 | if (widget->connected) { | |
833 | /* connected pin ? */ | |
024dc078 MB |
834 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
835 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
836 | return widget->outputs; | |
837 | } | |
2b97eabc RP |
838 | |
839 | /* connected jack or spk ? */ | |
024dc078 MB |
840 | if (widget->id == snd_soc_dapm_hp || |
841 | widget->id == snd_soc_dapm_spk || | |
842 | (widget->id == snd_soc_dapm_line && | |
843 | !list_empty(&widget->sources))) { | |
844 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
845 | return widget->outputs; | |
846 | } | |
2b97eabc RP |
847 | } |
848 | ||
849 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
850 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
851 | ||
bf3a9e13 MB |
852 | if (path->weak) |
853 | continue; | |
854 | ||
8af294b4 MB |
855 | if (path->walking) |
856 | return 1; | |
857 | ||
2b97eabc RP |
858 | if (path->walked) |
859 | continue; | |
860 | ||
ec2e3031 LG |
861 | trace_snd_soc_dapm_output_path(widget, path); |
862 | ||
2b97eabc RP |
863 | if (path->sink && path->connect) { |
864 | path->walked = 1; | |
8af294b4 | 865 | path->walking = 1; |
ec2e3031 LG |
866 | |
867 | /* do we need to add this widget to the list ? */ | |
868 | if (list) { | |
869 | int err; | |
870 | err = dapm_list_add_widget(list, path->sink); | |
871 | if (err < 0) { | |
30a6a1a4 LG |
872 | dev_err(widget->dapm->dev, |
873 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 874 | widget->name); |
8af294b4 | 875 | path->walking = 0; |
ec2e3031 LG |
876 | return con; |
877 | } | |
878 | } | |
879 | ||
880 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
881 | |
882 | path->walking = 0; | |
2b97eabc RP |
883 | } |
884 | } | |
885 | ||
024dc078 MB |
886 | widget->outputs = con; |
887 | ||
2b97eabc RP |
888 | return con; |
889 | } | |
890 | ||
891 | /* | |
892 | * Recursively check for a completed path to an active or physically connected | |
893 | * input widget. Returns number of complete paths. | |
894 | */ | |
ec2e3031 LG |
895 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
896 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
897 | { |
898 | struct snd_soc_dapm_path *path; | |
899 | int con = 0; | |
900 | ||
024dc078 MB |
901 | if (widget->inputs >= 0) |
902 | return widget->inputs; | |
903 | ||
de02d078 MB |
904 | DAPM_UPDATE_STAT(widget, path_checks); |
905 | ||
62ea874a MB |
906 | switch (widget->id) { |
907 | case snd_soc_dapm_supply: | |
908 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 909 | case snd_soc_dapm_clock_supply: |
246d0a17 | 910 | return 0; |
62ea874a MB |
911 | default: |
912 | break; | |
913 | } | |
246d0a17 | 914 | |
2b97eabc | 915 | /* active stream ? */ |
010ff262 MB |
916 | switch (widget->id) { |
917 | case snd_soc_dapm_dac: | |
918 | case snd_soc_dapm_aif_in: | |
888df395 | 919 | case snd_soc_dapm_dai: |
024dc078 MB |
920 | if (widget->active) { |
921 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
922 | return widget->inputs; | |
923 | } | |
010ff262 MB |
924 | default: |
925 | break; | |
926 | } | |
2b97eabc RP |
927 | |
928 | if (widget->connected) { | |
929 | /* connected pin ? */ | |
024dc078 MB |
930 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
931 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
932 | return widget->inputs; | |
933 | } | |
2b97eabc RP |
934 | |
935 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
936 | if (widget->id == snd_soc_dapm_vmid) { |
937 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
938 | return widget->inputs; | |
939 | } | |
2b97eabc RP |
940 | |
941 | /* connected jack ? */ | |
eaeae5d9 | 942 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
943 | (widget->id == snd_soc_dapm_line && |
944 | !list_empty(&widget->sinks))) { | |
945 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
946 | return widget->inputs; | |
947 | } | |
948 | ||
1ab97c8c MB |
949 | /* signal generator */ |
950 | if (widget->id == snd_soc_dapm_siggen) { | |
951 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
952 | return widget->inputs; | |
953 | } | |
2b97eabc RP |
954 | } |
955 | ||
956 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
957 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
958 | ||
bf3a9e13 MB |
959 | if (path->weak) |
960 | continue; | |
961 | ||
8af294b4 MB |
962 | if (path->walking) |
963 | return 1; | |
964 | ||
2b97eabc RP |
965 | if (path->walked) |
966 | continue; | |
967 | ||
ec2e3031 LG |
968 | trace_snd_soc_dapm_input_path(widget, path); |
969 | ||
2b97eabc RP |
970 | if (path->source && path->connect) { |
971 | path->walked = 1; | |
8af294b4 | 972 | path->walking = 1; |
ec2e3031 LG |
973 | |
974 | /* do we need to add this widget to the list ? */ | |
975 | if (list) { | |
976 | int err; | |
90c6ce0d | 977 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 978 | if (err < 0) { |
30a6a1a4 LG |
979 | dev_err(widget->dapm->dev, |
980 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 981 | widget->name); |
8af294b4 | 982 | path->walking = 0; |
ec2e3031 LG |
983 | return con; |
984 | } | |
985 | } | |
986 | ||
987 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
988 | |
989 | path->walking = 0; | |
2b97eabc RP |
990 | } |
991 | } | |
992 | ||
024dc078 MB |
993 | widget->inputs = con; |
994 | ||
2b97eabc RP |
995 | return con; |
996 | } | |
997 | ||
ec2e3031 LG |
998 | /** |
999 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1000 | * @dai: the soc DAI. | |
1001 | * @stream: stream direction. | |
1002 | * @list: list of active widgets for this stream. | |
1003 | * | |
1004 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1005 | * the initial stream specified by name. This takes into account | |
1006 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1007 | * | |
1008 | * Returns the number of valid paths or negative error. | |
1009 | */ | |
1010 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1011 | struct snd_soc_dapm_widget_list **list) | |
1012 | { | |
1013 | struct snd_soc_card *card = dai->card; | |
1014 | int paths; | |
1015 | ||
1016 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1017 | dapm_reset(card); | |
1018 | ||
1059ecfa | 1019 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1020 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1021 | dapm_clear_walk_output(&card->dapm, |
1022 | &dai->playback_widget->sinks); | |
1023 | } else { | |
d298caae | 1024 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1025 | dapm_clear_walk_input(&card->dapm, |
1026 | &dai->capture_widget->sources); | |
1027 | } | |
ec2e3031 LG |
1028 | |
1029 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1030 | mutex_unlock(&card->dapm_mutex); |
1031 | ||
1032 | return paths; | |
1033 | } | |
1034 | ||
e2be2ccf JN |
1035 | /* |
1036 | * Handler for generic register modifier widget. | |
1037 | */ | |
1038 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1039 | struct snd_kcontrol *kcontrol, int event) | |
1040 | { | |
1041 | unsigned int val; | |
1042 | ||
1043 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1044 | val = w->on_val; | |
1045 | else | |
1046 | val = w->off_val; | |
1047 | ||
49575fb5 | 1048 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1049 | w->mask << w->shift, val << w->shift); |
1050 | ||
1051 | return 0; | |
1052 | } | |
11589418 | 1053 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1054 | |
62ea874a MB |
1055 | /* |
1056 | * Handler for regulator supply widget. | |
1057 | */ | |
1058 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1059 | struct snd_kcontrol *kcontrol, int event) | |
1060 | { | |
c05b84d1 MB |
1061 | int ret; |
1062 | ||
1063 | if (SND_SOC_DAPM_EVENT_ON(event)) { | |
1064 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
8784c77a | 1065 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1066 | if (ret != 0) |
1067 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1068 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1069 | w->name, ret); |
1070 | } | |
1071 | ||
a3cc056b | 1072 | return regulator_enable(w->regulator); |
c05b84d1 MB |
1073 | } else { |
1074 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
8784c77a | 1075 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1076 | if (ret != 0) |
1077 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1078 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1079 | w->name, ret); |
1080 | } | |
1081 | ||
a3cc056b | 1082 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1083 | } |
62ea874a MB |
1084 | } |
1085 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1086 | ||
d7e7eb91 OL |
1087 | /* |
1088 | * Handler for clock supply widget. | |
1089 | */ | |
1090 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1091 | struct snd_kcontrol *kcontrol, int event) | |
1092 | { | |
1093 | if (!w->clk) | |
1094 | return -EIO; | |
1095 | ||
ec02995a | 1096 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1097 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1098 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1099 | } else { |
37c1b927 | 1100 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1101 | return 0; |
1102 | } | |
ec02995a | 1103 | #endif |
98b3cf12 | 1104 | return 0; |
d7e7eb91 OL |
1105 | } |
1106 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1107 | ||
d805002b MB |
1108 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1109 | { | |
9b8a83b2 MB |
1110 | if (w->power_checked) |
1111 | return w->new_power; | |
1112 | ||
d805002b | 1113 | if (w->force) |
9b8a83b2 | 1114 | w->new_power = 1; |
d805002b | 1115 | else |
9b8a83b2 MB |
1116 | w->new_power = w->power_check(w); |
1117 | ||
1118 | w->power_checked = true; | |
1119 | ||
1120 | return w->new_power; | |
d805002b MB |
1121 | } |
1122 | ||
cd0f2d47 MB |
1123 | /* Generic check to see if a widget should be powered. |
1124 | */ | |
1125 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1126 | { | |
1127 | int in, out; | |
1128 | ||
de02d078 MB |
1129 | DAPM_UPDATE_STAT(w, power_checks); |
1130 | ||
ec2e3031 | 1131 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1132 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1133 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1134 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1135 | return out != 0 && in != 0; |
1136 | } | |
1137 | ||
888df395 MB |
1138 | static int dapm_dai_check_power(struct snd_soc_dapm_widget *w) |
1139 | { | |
1140 | DAPM_UPDATE_STAT(w, power_checks); | |
1141 | ||
1eee1b38 MB |
1142 | if (w->active) |
1143 | return w->active; | |
1144 | ||
1145 | return dapm_generic_check_power(w); | |
888df395 MB |
1146 | } |
1147 | ||
6ea31b9f MB |
1148 | /* Check to see if an ADC has power */ |
1149 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1150 | { | |
1151 | int in; | |
1152 | ||
de02d078 MB |
1153 | DAPM_UPDATE_STAT(w, power_checks); |
1154 | ||
6ea31b9f | 1155 | if (w->active) { |
ec2e3031 | 1156 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1157 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1158 | return in != 0; |
1159 | } else { | |
1160 | return dapm_generic_check_power(w); | |
1161 | } | |
1162 | } | |
1163 | ||
1164 | /* Check to see if a DAC has power */ | |
1165 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1166 | { | |
1167 | int out; | |
1168 | ||
de02d078 MB |
1169 | DAPM_UPDATE_STAT(w, power_checks); |
1170 | ||
6ea31b9f | 1171 | if (w->active) { |
ec2e3031 | 1172 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1173 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1174 | return out != 0; |
1175 | } else { | |
1176 | return dapm_generic_check_power(w); | |
1177 | } | |
1178 | } | |
1179 | ||
246d0a17 MB |
1180 | /* Check to see if a power supply is needed */ |
1181 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1182 | { | |
1183 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1184 | |
de02d078 MB |
1185 | DAPM_UPDATE_STAT(w, power_checks); |
1186 | ||
246d0a17 MB |
1187 | /* Check if one of our outputs is connected */ |
1188 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1189 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1190 | ||
bf3a9e13 MB |
1191 | if (path->weak) |
1192 | continue; | |
1193 | ||
215edda3 MB |
1194 | if (path->connected && |
1195 | !path->connected(path->source, path->sink)) | |
1196 | continue; | |
1197 | ||
3017358a MB |
1198 | if (!path->sink) |
1199 | continue; | |
1200 | ||
f68d7e16 MB |
1201 | if (dapm_widget_power_check(path->sink)) |
1202 | return 1; | |
246d0a17 MB |
1203 | } |
1204 | ||
f68d7e16 | 1205 | return 0; |
246d0a17 MB |
1206 | } |
1207 | ||
35c64bca MB |
1208 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1209 | { | |
1210 | return 1; | |
1211 | } | |
1212 | ||
38357ab2 MB |
1213 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1214 | struct snd_soc_dapm_widget *b, | |
828a842f | 1215 | bool power_up) |
42aa3418 | 1216 | { |
828a842f MB |
1217 | int *sort; |
1218 | ||
1219 | if (power_up) | |
1220 | sort = dapm_up_seq; | |
1221 | else | |
1222 | sort = dapm_down_seq; | |
1223 | ||
38357ab2 MB |
1224 | if (sort[a->id] != sort[b->id]) |
1225 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1226 | if (a->subseq != b->subseq) { |
1227 | if (power_up) | |
1228 | return a->subseq - b->subseq; | |
1229 | else | |
1230 | return b->subseq - a->subseq; | |
1231 | } | |
b22ead2a MB |
1232 | if (a->reg != b->reg) |
1233 | return a->reg - b->reg; | |
84dab567 MB |
1234 | if (a->dapm != b->dapm) |
1235 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1236 | |
38357ab2 MB |
1237 | return 0; |
1238 | } | |
42aa3418 | 1239 | |
38357ab2 MB |
1240 | /* Insert a widget in order into a DAPM power sequence. */ |
1241 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1242 | struct list_head *list, | |
828a842f | 1243 | bool power_up) |
38357ab2 MB |
1244 | { |
1245 | struct snd_soc_dapm_widget *w; | |
1246 | ||
1247 | list_for_each_entry(w, list, power_list) | |
828a842f | 1248 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1249 | list_add_tail(&new_widget->power_list, &w->power_list); |
1250 | return; | |
1251 | } | |
1252 | ||
1253 | list_add_tail(&new_widget->power_list, list); | |
1254 | } | |
1255 | ||
68f89ad8 MB |
1256 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
1257 | struct snd_soc_dapm_widget *w, int event) | |
1258 | { | |
1259 | struct snd_soc_card *card = dapm->card; | |
1260 | const char *ev_name; | |
1261 | int power, ret; | |
1262 | ||
1263 | switch (event) { | |
1264 | case SND_SOC_DAPM_PRE_PMU: | |
1265 | ev_name = "PRE_PMU"; | |
1266 | power = 1; | |
1267 | break; | |
1268 | case SND_SOC_DAPM_POST_PMU: | |
1269 | ev_name = "POST_PMU"; | |
1270 | power = 1; | |
1271 | break; | |
1272 | case SND_SOC_DAPM_PRE_PMD: | |
1273 | ev_name = "PRE_PMD"; | |
1274 | power = 0; | |
1275 | break; | |
1276 | case SND_SOC_DAPM_POST_PMD: | |
1277 | ev_name = "POST_PMD"; | |
1278 | power = 0; | |
1279 | break; | |
1280 | default: | |
1281 | BUG(); | |
1282 | return; | |
1283 | } | |
1284 | ||
1285 | if (w->power != power) | |
1286 | return; | |
1287 | ||
1288 | if (w->event && (w->event_flags & event)) { | |
1289 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1290 | w->name, ev_name); | |
84e90930 | 1291 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1292 | ret = w->event(w, NULL, event); |
84e90930 | 1293 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1294 | if (ret < 0) |
30a6a1a4 | 1295 | dev_err(dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1296 | ev_name, w->name, ret); |
1297 | } | |
1298 | } | |
1299 | ||
b22ead2a | 1300 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1301 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1302 | struct list_head *pending) |
163cac06 | 1303 | { |
3a45b867 | 1304 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1305 | struct snd_soc_dapm_widget *w; |
1306 | int reg, power; | |
b22ead2a MB |
1307 | unsigned int value = 0; |
1308 | unsigned int mask = 0; | |
1309 | unsigned int cur_mask; | |
1310 | ||
1311 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1312 | power_list)->reg; | |
1313 | ||
1314 | list_for_each_entry(w, pending, power_list) { | |
1315 | cur_mask = 1 << w->shift; | |
1316 | BUG_ON(reg != w->reg); | |
1317 | ||
1318 | if (w->invert) | |
1319 | power = !w->power; | |
1320 | else | |
1321 | power = w->power; | |
1322 | ||
1323 | mask |= cur_mask; | |
1324 | if (power) | |
1325 | value |= cur_mask; | |
1326 | ||
fd8d3bc0 | 1327 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1328 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1329 | w->name, reg, value, mask); | |
81628103 | 1330 | |
68f89ad8 MB |
1331 | /* Check for events */ |
1332 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1333 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1334 | } |
1335 | ||
1336 | if (reg >= 0) { | |
29376bc7 MB |
1337 | /* Any widget will do, they should all be updating the |
1338 | * same register. | |
1339 | */ | |
1340 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1341 | power_list); | |
1342 | ||
fd8d3bc0 | 1343 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1344 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1345 | value, mask, reg, card->pop_time); |
1346 | pop_wait(card->pop_time); | |
49575fb5 | 1347 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1348 | } |
1349 | ||
81628103 | 1350 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1351 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1352 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1353 | } |
b22ead2a | 1354 | } |
42aa3418 | 1355 | |
b22ead2a MB |
1356 | /* Apply a DAPM power sequence. |
1357 | * | |
1358 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1359 | * order to minimise the number of writes to the device required | |
1360 | * multiple widgets will be updated in a single write where possible. | |
1361 | * Currently anything that requires more than a single write is not | |
1362 | * handled. | |
1363 | */ | |
ce6120cc | 1364 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1365 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1366 | { |
1367 | struct snd_soc_dapm_widget *w, *n; | |
1368 | LIST_HEAD(pending); | |
1369 | int cur_sort = -1; | |
20e4859d | 1370 | int cur_subseq = -1; |
b22ead2a | 1371 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1372 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1373 | int ret, i; |
828a842f MB |
1374 | int *sort; |
1375 | ||
1376 | if (power_up) | |
1377 | sort = dapm_up_seq; | |
1378 | else | |
1379 | sort = dapm_down_seq; | |
163cac06 | 1380 | |
b22ead2a MB |
1381 | list_for_each_entry_safe(w, n, list, power_list) { |
1382 | ret = 0; | |
1383 | ||
1384 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1385 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1386 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1387 | if (!list_empty(&pending)) |
7be31be8 | 1388 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1389 | |
474b62d6 MB |
1390 | if (cur_dapm && cur_dapm->seq_notifier) { |
1391 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1392 | if (sort[i] == cur_sort) | |
1393 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1394 | i, |
1395 | cur_subseq); | |
474b62d6 MB |
1396 | } |
1397 | ||
b22ead2a MB |
1398 | INIT_LIST_HEAD(&pending); |
1399 | cur_sort = -1; | |
b0b3e6f8 | 1400 | cur_subseq = INT_MIN; |
b22ead2a | 1401 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1402 | cur_dapm = NULL; |
b22ead2a MB |
1403 | } |
1404 | ||
163cac06 MB |
1405 | switch (w->id) { |
1406 | case snd_soc_dapm_pre: | |
1407 | if (!w->event) | |
b22ead2a MB |
1408 | list_for_each_entry_safe_continue(w, n, list, |
1409 | power_list); | |
163cac06 | 1410 | |
b22ead2a | 1411 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1412 | ret = w->event(w, |
1413 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1414 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1415 | ret = w->event(w, |
1416 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1417 | break; |
1418 | ||
1419 | case snd_soc_dapm_post: | |
1420 | if (!w->event) | |
b22ead2a MB |
1421 | list_for_each_entry_safe_continue(w, n, list, |
1422 | power_list); | |
163cac06 | 1423 | |
b22ead2a | 1424 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1425 | ret = w->event(w, |
1426 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1427 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1428 | ret = w->event(w, |
1429 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1430 | break; |
1431 | ||
b22ead2a | 1432 | default: |
81628103 MB |
1433 | /* Queue it up for application */ |
1434 | cur_sort = sort[w->id]; | |
20e4859d | 1435 | cur_subseq = w->subseq; |
81628103 | 1436 | cur_reg = w->reg; |
7be31be8 | 1437 | cur_dapm = w->dapm; |
81628103 MB |
1438 | list_move(&w->power_list, &pending); |
1439 | break; | |
163cac06 | 1440 | } |
b22ead2a MB |
1441 | |
1442 | if (ret < 0) | |
f7d41ae8 | 1443 | dev_err(w->dapm->dev, |
30a6a1a4 | 1444 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1445 | } |
b22ead2a MB |
1446 | |
1447 | if (!list_empty(&pending)) | |
28e86808 | 1448 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1449 | |
1450 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1451 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1452 | if (sort[i] == cur_sort) | |
1453 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1454 | i, cur_subseq); |
474b62d6 | 1455 | } |
42aa3418 MB |
1456 | } |
1457 | ||
97404f2e MB |
1458 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1459 | { | |
1460 | struct snd_soc_dapm_update *update = dapm->update; | |
1461 | struct snd_soc_dapm_widget *w; | |
1462 | int ret; | |
1463 | ||
1464 | if (!update) | |
1465 | return; | |
1466 | ||
1467 | w = update->widget; | |
1468 | ||
1469 | if (w->event && | |
1470 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1471 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1472 | if (ret != 0) | |
30a6a1a4 | 1473 | dev_err(dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
97404f2e MB |
1474 | w->name, ret); |
1475 | } | |
1476 | ||
49575fb5 | 1477 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1478 | update->val); |
1479 | if (ret < 0) | |
30a6a1a4 LG |
1480 | dev_err(dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
1481 | w->name, ret); | |
97404f2e MB |
1482 | |
1483 | if (w->event && | |
1484 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1485 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1486 | if (ret != 0) | |
30a6a1a4 | 1487 | dev_err(dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
97404f2e MB |
1488 | w->name, ret); |
1489 | } | |
1490 | } | |
1491 | ||
9d0624a7 MB |
1492 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1493 | * they're changing state. | |
1494 | */ | |
1495 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1496 | { | |
1497 | struct snd_soc_dapm_context *d = data; | |
1498 | int ret; | |
1499 | ||
56fba41f MB |
1500 | /* If we're off and we're not supposed to be go into STANDBY */ |
1501 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1502 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1503 | if (d->dev) |
1504 | pm_runtime_get_sync(d->dev); | |
1505 | ||
9d0624a7 MB |
1506 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1507 | if (ret != 0) | |
1508 | dev_err(d->dev, | |
30a6a1a4 | 1509 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1510 | } |
1511 | ||
56fba41f MB |
1512 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1513 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1514 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1515 | if (ret != 0) | |
1516 | dev_err(d->dev, | |
30a6a1a4 | 1517 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1518 | } |
1519 | } | |
1520 | ||
1521 | /* Async callback run prior to DAPM sequences - brings to their final | |
1522 | * state. | |
1523 | */ | |
1524 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1525 | { | |
1526 | struct snd_soc_dapm_context *d = data; | |
1527 | int ret; | |
1528 | ||
1529 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1530 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1531 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1532 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1533 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1534 | if (ret != 0) | |
30a6a1a4 | 1535 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1536 | ret); |
1537 | } | |
97404f2e | 1538 | |
9d0624a7 | 1539 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1540 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1541 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1542 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1543 | if (ret != 0) | |
30a6a1a4 LG |
1544 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1545 | ret); | |
f1aac484 MB |
1546 | |
1547 | if (d->dev) | |
fb644e9c | 1548 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1549 | } |
1550 | ||
1551 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1552 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1553 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1554 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1555 | if (ret != 0) | |
30a6a1a4 | 1556 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1557 | ret); |
1558 | } | |
1559 | } | |
97404f2e | 1560 | |
fe4fda5d MB |
1561 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1562 | bool power, bool connect) | |
1563 | { | |
1564 | /* If a connection is being made or broken then that update | |
1565 | * will have marked the peer dirty, otherwise the widgets are | |
1566 | * not connected and this update has no impact. */ | |
1567 | if (!connect) | |
1568 | return; | |
1569 | ||
1570 | /* If the peer is already in the state we're moving to then we | |
1571 | * won't have an impact on it. */ | |
1572 | if (power != peer->power) | |
75c1f891 | 1573 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1574 | } |
1575 | ||
05623c43 MB |
1576 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1577 | struct list_head *up_list, | |
1578 | struct list_head *down_list) | |
1579 | { | |
db432b41 MB |
1580 | struct snd_soc_dapm_path *path; |
1581 | ||
05623c43 MB |
1582 | if (w->power == power) |
1583 | return; | |
1584 | ||
1585 | trace_snd_soc_dapm_widget_power(w, power); | |
1586 | ||
db432b41 | 1587 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1588 | * also. |
db432b41 MB |
1589 | */ |
1590 | list_for_each_entry(path, &w->sources, list_sink) { | |
1591 | if (path->source) { | |
fe4fda5d MB |
1592 | dapm_widget_set_peer_power(path->source, power, |
1593 | path->connect); | |
db432b41 MB |
1594 | } |
1595 | } | |
f3bf3e45 MB |
1596 | switch (w->id) { |
1597 | case snd_soc_dapm_supply: | |
62ea874a | 1598 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1599 | case snd_soc_dapm_clock_supply: |
f3bf3e45 MB |
1600 | /* Supplies can't affect their outputs, only their inputs */ |
1601 | break; | |
1602 | default: | |
1603 | list_for_each_entry(path, &w->sinks, list_source) { | |
1604 | if (path->sink) { | |
1605 | dapm_widget_set_peer_power(path->sink, power, | |
1606 | path->connect); | |
1607 | } | |
db432b41 | 1608 | } |
f3bf3e45 | 1609 | break; |
db432b41 MB |
1610 | } |
1611 | ||
05623c43 MB |
1612 | if (power) |
1613 | dapm_seq_insert(w, up_list, true); | |
1614 | else | |
1615 | dapm_seq_insert(w, down_list, false); | |
1616 | ||
1617 | w->power = power; | |
1618 | } | |
1619 | ||
7c81beb0 MB |
1620 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1621 | struct list_head *up_list, | |
1622 | struct list_head *down_list) | |
1623 | { | |
7c81beb0 MB |
1624 | int power; |
1625 | ||
1626 | switch (w->id) { | |
1627 | case snd_soc_dapm_pre: | |
1628 | dapm_seq_insert(w, down_list, false); | |
1629 | break; | |
1630 | case snd_soc_dapm_post: | |
1631 | dapm_seq_insert(w, up_list, true); | |
1632 | break; | |
1633 | ||
1634 | default: | |
d805002b | 1635 | power = dapm_widget_power_check(w); |
7c81beb0 | 1636 | |
05623c43 | 1637 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1638 | break; |
1639 | } | |
1640 | } | |
1641 | ||
2b97eabc RP |
1642 | /* |
1643 | * Scan each dapm widget for complete audio path. | |
1644 | * A complete path is a route that has valid endpoints i.e.:- | |
1645 | * | |
1646 | * o DAC to output pin. | |
1647 | * o Input Pin to ADC. | |
1648 | * o Input pin to Output pin (bypass, sidetone) | |
1649 | * o DAC to ADC (loopback). | |
1650 | */ | |
ce6120cc | 1651 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1652 | { |
12ea2c78 | 1653 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1654 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1655 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1656 | LIST_HEAD(up_list); |
1657 | LIST_HEAD(down_list); | |
2955b47d | 1658 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1659 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1660 | |
84e90930 MB |
1661 | trace_snd_soc_dapm_start(card); |
1662 | ||
56fba41f | 1663 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1664 | if (d->idle_bias_off) |
1665 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1666 | else | |
1667 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1668 | } |
7be31be8 | 1669 | |
6c120e19 | 1670 | dapm_reset(card); |
9b8a83b2 | 1671 | |
6d3ddc81 | 1672 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1673 | * lists indicating if they should be powered up or down. We |
1674 | * only check widgets that have been flagged as dirty but note | |
1675 | * that new widgets may be added to the dirty list while we | |
1676 | * iterate. | |
6d3ddc81 | 1677 | */ |
db432b41 | 1678 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1679 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1680 | } |
1681 | ||
f9de6d74 | 1682 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1683 | switch (w->id) { |
1684 | case snd_soc_dapm_pre: | |
1685 | case snd_soc_dapm_post: | |
1686 | /* These widgets always need to be powered */ | |
1687 | break; | |
1688 | default: | |
1689 | list_del_init(&w->dirty); | |
1690 | break; | |
1691 | } | |
db432b41 | 1692 | |
f9de6d74 MB |
1693 | if (w->power) { |
1694 | d = w->dapm; | |
1695 | ||
1696 | /* Supplies and micbiases only bring the | |
1697 | * context up to STANDBY as unless something | |
1698 | * else is active and passing audio they | |
afe62367 MB |
1699 | * generally don't require full power. Signal |
1700 | * generators are virtual pins and have no | |
1701 | * power impact themselves. | |
f9de6d74 MB |
1702 | */ |
1703 | switch (w->id) { | |
afe62367 MB |
1704 | case snd_soc_dapm_siggen: |
1705 | break; | |
f9de6d74 | 1706 | case snd_soc_dapm_supply: |
62ea874a | 1707 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1708 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1709 | case snd_soc_dapm_micbias: |
1710 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1711 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1712 | break; | |
1713 | default: | |
1714 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1715 | break; | |
1716 | } | |
1717 | } | |
1718 | ||
1719 | } | |
1720 | ||
85a843c5 MB |
1721 | /* Force all contexts in the card to the same bias state if |
1722 | * they're not ground referenced. | |
1723 | */ | |
56fba41f | 1724 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1725 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1726 | if (d->target_bias_level > bias) |
1727 | bias = d->target_bias_level; | |
52ba67bf | 1728 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1729 | if (!d->idle_bias_off) |
1730 | d->target_bias_level = bias; | |
52ba67bf | 1731 | |
de02d078 | 1732 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1733 | |
9d0624a7 MB |
1734 | /* Run all the bias changes in parallel */ |
1735 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1736 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1737 | &async_domain); | |
1738 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1739 | |
6d3ddc81 | 1740 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1741 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1742 | |
97404f2e MB |
1743 | dapm_widget_update(dapm); |
1744 | ||
6d3ddc81 | 1745 | /* Now power up. */ |
828a842f | 1746 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1747 | |
9d0624a7 MB |
1748 | /* Run all the bias changes in parallel */ |
1749 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1750 | async_schedule_domain(dapm_post_sequence_async, d, | |
1751 | &async_domain); | |
1752 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1753 | |
8078d87f LG |
1754 | /* do we need to notify any clients that DAPM event is complete */ |
1755 | list_for_each_entry(d, &card->dapm_list, list) { | |
1756 | if (d->stream_event) | |
1757 | d->stream_event(d, event); | |
1758 | } | |
1759 | ||
fd8d3bc0 JN |
1760 | pop_dbg(dapm->dev, card->pop_time, |
1761 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1762 | pop_wait(card->pop_time); |
cb507e7e | 1763 | |
84e90930 MB |
1764 | trace_snd_soc_dapm_done(card); |
1765 | ||
42aa3418 | 1766 | return 0; |
2b97eabc RP |
1767 | } |
1768 | ||
79fb9387 | 1769 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1770 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1771 | char __user *user_buf, | |
1772 | size_t count, loff_t *ppos) | |
1773 | { | |
1774 | struct snd_soc_dapm_widget *w = file->private_data; | |
1775 | char *buf; | |
1776 | int in, out; | |
1777 | ssize_t ret; | |
1778 | struct snd_soc_dapm_path *p = NULL; | |
1779 | ||
1780 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1781 | if (!buf) | |
1782 | return -ENOMEM; | |
1783 | ||
ec2e3031 | 1784 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1785 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1786 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1787 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1788 | |
f13ebada MB |
1789 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1790 | w->name, w->power ? "On" : "Off", | |
1791 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1792 | |
d033c36a MB |
1793 | if (w->reg >= 0) |
1794 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1795 | " - R%d(0x%x) bit %d", | |
1796 | w->reg, w->reg, w->shift); | |
1797 | ||
1798 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1799 | ||
3eef08ba MB |
1800 | if (w->sname) |
1801 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1802 | w->sname, | |
1803 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1804 | |
1805 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1806 | if (p->connected && !p->connected(w, p->sink)) |
1807 | continue; | |
1808 | ||
79fb9387 MB |
1809 | if (p->connect) |
1810 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1811 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1812 | p->name ? p->name : "static", |
1813 | p->source->name); | |
1814 | } | |
1815 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1816 | if (p->connected && !p->connected(w, p->sink)) |
1817 | continue; | |
1818 | ||
79fb9387 MB |
1819 | if (p->connect) |
1820 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1821 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1822 | p->name ? p->name : "static", |
1823 | p->sink->name); | |
1824 | } | |
1825 | ||
1826 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1827 | ||
1828 | kfree(buf); | |
1829 | return ret; | |
1830 | } | |
1831 | ||
1832 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1833 | .open = simple_open, |
79fb9387 | 1834 | .read = dapm_widget_power_read_file, |
6038f373 | 1835 | .llseek = default_llseek, |
79fb9387 MB |
1836 | }; |
1837 | ||
ef49e4fa MB |
1838 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1839 | size_t count, loff_t *ppos) | |
1840 | { | |
1841 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1842 | char *level; | |
1843 | ||
1844 | switch (dapm->bias_level) { | |
1845 | case SND_SOC_BIAS_ON: | |
1846 | level = "On\n"; | |
1847 | break; | |
1848 | case SND_SOC_BIAS_PREPARE: | |
1849 | level = "Prepare\n"; | |
1850 | break; | |
1851 | case SND_SOC_BIAS_STANDBY: | |
1852 | level = "Standby\n"; | |
1853 | break; | |
1854 | case SND_SOC_BIAS_OFF: | |
1855 | level = "Off\n"; | |
1856 | break; | |
1857 | default: | |
1858 | BUG(); | |
1859 | level = "Unknown\n"; | |
1860 | break; | |
1861 | } | |
1862 | ||
1863 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1864 | strlen(level)); | |
1865 | } | |
1866 | ||
1867 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1868 | .open = simple_open, |
ef49e4fa MB |
1869 | .read = dapm_bias_read_file, |
1870 | .llseek = default_llseek, | |
1871 | }; | |
1872 | ||
8eecaf62 LPC |
1873 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1874 | struct dentry *parent) | |
79fb9387 | 1875 | { |
79fb9387 MB |
1876 | struct dentry *d; |
1877 | ||
8eecaf62 LPC |
1878 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1879 | ||
1880 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1881 | dev_warn(dapm->dev, |
30a6a1a4 | 1882 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1883 | return; |
8eecaf62 | 1884 | } |
79fb9387 | 1885 | |
ef49e4fa MB |
1886 | d = debugfs_create_file("bias_level", 0444, |
1887 | dapm->debugfs_dapm, dapm, | |
1888 | &dapm_bias_fops); | |
1889 | if (!d) | |
1890 | dev_warn(dapm->dev, | |
1891 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1892 | } |
ef49e4fa | 1893 | |
d5d1e0be LPC |
1894 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1895 | { | |
1896 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1897 | struct dentry *d; | |
79fb9387 | 1898 | |
d5d1e0be LPC |
1899 | if (!dapm->debugfs_dapm || !w->name) |
1900 | return; | |
1901 | ||
1902 | d = debugfs_create_file(w->name, 0444, | |
1903 | dapm->debugfs_dapm, w, | |
1904 | &dapm_widget_power_fops); | |
1905 | if (!d) | |
1906 | dev_warn(w->dapm->dev, | |
1907 | "ASoC: Failed to create %s debugfs file\n", | |
1908 | w->name); | |
79fb9387 | 1909 | } |
d5d1e0be | 1910 | |
6c45e126 LPC |
1911 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1912 | { | |
1913 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1914 | } | |
1915 | ||
79fb9387 | 1916 | #else |
8eecaf62 LPC |
1917 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1918 | struct dentry *parent) | |
79fb9387 MB |
1919 | { |
1920 | } | |
d5d1e0be LPC |
1921 | |
1922 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1923 | { | |
1924 | } | |
1925 | ||
6c45e126 LPC |
1926 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1927 | { | |
1928 | } | |
1929 | ||
79fb9387 MB |
1930 | #endif |
1931 | ||
2b97eabc | 1932 | /* test and update the power status of a mux widget */ |
4edbb345 | 1933 | static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
40f02cd9 | 1934 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1935 | { |
1936 | struct snd_soc_dapm_path *path; | |
1937 | int found = 0; | |
1938 | ||
eff317d0 | 1939 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1940 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1941 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1942 | return -ENODEV; |
1943 | ||
2b97eabc | 1944 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1945 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1946 | if (path->kcontrol != kcontrol) |
1947 | continue; | |
1948 | ||
cb01e2b9 | 1949 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1950 | continue; |
1951 | ||
1952 | found = 1; | |
1953 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1954 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1955 | path->connect = 1; /* new connection */ |
75c1f891 | 1956 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1957 | } else { |
1958 | if (path->connect) | |
75c1f891 MB |
1959 | dapm_mark_dirty(path->source, |
1960 | "mux disconnection"); | |
2b97eabc | 1961 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1962 | } |
2b97eabc RP |
1963 | } |
1964 | ||
db432b41 | 1965 | if (found) { |
75c1f891 | 1966 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1967 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1968 | } |
2b97eabc | 1969 | |
618dae11 | 1970 | return found; |
2b97eabc | 1971 | } |
4edbb345 LG |
1972 | |
1973 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, | |
1974 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) | |
1975 | { | |
1976 | struct snd_soc_card *card = widget->dapm->card; | |
1977 | int ret; | |
1978 | ||
3cd04343 | 1979 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1980 | ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1981 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1982 | if (ret > 0) |
1983 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1984 | return ret; |
1985 | } | |
40f02cd9 | 1986 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1987 | |
1b075e3f | 1988 | /* test and update the power status of a mixer or switch widget */ |
4edbb345 | 1989 | static int soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1990 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1991 | { |
1992 | struct snd_soc_dapm_path *path; | |
1993 | int found = 0; | |
1994 | ||
1b075e3f | 1995 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1996 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1997 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1998 | return -ENODEV; |
1999 | ||
2b97eabc | 2000 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 2001 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
2002 | if (path->kcontrol != kcontrol) |
2003 | continue; | |
2004 | ||
2005 | /* found, now check type */ | |
2006 | found = 1; | |
283375ce | 2007 | path->connect = connect; |
75c1f891 | 2008 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
2009 | } |
2010 | ||
db432b41 | 2011 | if (found) { |
75c1f891 | 2012 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 2013 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 2014 | } |
2b97eabc | 2015 | |
618dae11 | 2016 | return found; |
2b97eabc | 2017 | } |
4edbb345 LG |
2018 | |
2019 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, | |
2020 | struct snd_kcontrol *kcontrol, int connect) | |
2021 | { | |
2022 | struct snd_soc_card *card = widget->dapm->card; | |
2023 | int ret; | |
2024 | ||
3cd04343 | 2025 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
2026 | ret = soc_dapm_mixer_update_power(widget, kcontrol, connect); |
2027 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
2028 | if (ret > 0) |
2029 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
2030 | return ret; |
2031 | } | |
40f02cd9 | 2032 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2033 | |
2034 | /* show dapm widget status in sys fs */ | |
2035 | static ssize_t dapm_widget_show(struct device *dev, | |
2036 | struct device_attribute *attr, char *buf) | |
2037 | { | |
36ae1a96 | 2038 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2039 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2040 | struct snd_soc_dapm_widget *w; |
2041 | int count = 0; | |
2042 | char *state = "not set"; | |
2043 | ||
97c866de JN |
2044 | list_for_each_entry(w, &codec->card->widgets, list) { |
2045 | if (w->dapm != &codec->dapm) | |
2046 | continue; | |
2b97eabc RP |
2047 | |
2048 | /* only display widgets that burnm power */ | |
2049 | switch (w->id) { | |
2050 | case snd_soc_dapm_hp: | |
2051 | case snd_soc_dapm_mic: | |
2052 | case snd_soc_dapm_spk: | |
2053 | case snd_soc_dapm_line: | |
2054 | case snd_soc_dapm_micbias: | |
2055 | case snd_soc_dapm_dac: | |
2056 | case snd_soc_dapm_adc: | |
2057 | case snd_soc_dapm_pga: | |
d88429a6 | 2058 | case snd_soc_dapm_out_drv: |
2b97eabc | 2059 | case snd_soc_dapm_mixer: |
ca9c1aae | 2060 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2061 | case snd_soc_dapm_supply: |
62ea874a | 2062 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2063 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2064 | if (w->name) |
2065 | count += sprintf(buf + count, "%s: %s\n", | |
2066 | w->name, w->power ? "On":"Off"); | |
2067 | break; | |
2068 | default: | |
2069 | break; | |
2070 | } | |
2071 | } | |
2072 | ||
ce6120cc | 2073 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2074 | case SND_SOC_BIAS_ON: |
2075 | state = "On"; | |
2b97eabc | 2076 | break; |
0be9898a MB |
2077 | case SND_SOC_BIAS_PREPARE: |
2078 | state = "Prepare"; | |
2b97eabc | 2079 | break; |
0be9898a MB |
2080 | case SND_SOC_BIAS_STANDBY: |
2081 | state = "Standby"; | |
2b97eabc | 2082 | break; |
0be9898a MB |
2083 | case SND_SOC_BIAS_OFF: |
2084 | state = "Off"; | |
2b97eabc RP |
2085 | break; |
2086 | } | |
2087 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2088 | ||
2089 | return count; | |
2090 | } | |
2091 | ||
2092 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2093 | ||
2094 | int snd_soc_dapm_sys_add(struct device *dev) | |
2095 | { | |
12ef193d | 2096 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2097 | } |
2098 | ||
2099 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2100 | { | |
aef90843 | 2101 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2102 | } |
2103 | ||
2104 | /* free all dapm widgets and resources */ | |
ce6120cc | 2105 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2106 | { |
2107 | struct snd_soc_dapm_widget *w, *next_w; | |
2108 | struct snd_soc_dapm_path *p, *next_p; | |
2109 | ||
97c866de JN |
2110 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2111 | if (w->dapm != dapm) | |
2112 | continue; | |
2b97eabc | 2113 | list_del(&w->list); |
8ddab3f5 JN |
2114 | /* |
2115 | * remove source and sink paths associated to this widget. | |
2116 | * While removing the path, remove reference to it from both | |
2117 | * source and sink widgets so that path is removed only once. | |
2118 | */ | |
2119 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
2120 | list_del(&p->list_sink); | |
2121 | list_del(&p->list_source); | |
2122 | list_del(&p->list); | |
2123 | kfree(p->long_name); | |
2124 | kfree(p); | |
2125 | } | |
2126 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
2127 | list_del(&p->list_sink); | |
2128 | list_del(&p->list_source); | |
2129 | list_del(&p->list); | |
2130 | kfree(p->long_name); | |
2131 | kfree(p); | |
2132 | } | |
fad59888 | 2133 | kfree(w->kcontrols); |
ead9b919 | 2134 | kfree(w->name); |
2b97eabc RP |
2135 | kfree(w); |
2136 | } | |
2b97eabc RP |
2137 | } |
2138 | ||
91a5fca4 LPC |
2139 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2140 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2141 | bool search_other_contexts) | |
a5302181 LG |
2142 | { |
2143 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2144 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2145 | |
97c866de | 2146 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2147 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2148 | if (w->dapm == dapm) |
2149 | return w; | |
2150 | else | |
2151 | fallback = w; | |
a5302181 LG |
2152 | } |
2153 | } | |
2154 | ||
91a5fca4 LPC |
2155 | if (search_other_contexts) |
2156 | return fallback; | |
2157 | ||
2158 | return NULL; | |
2159 | } | |
2160 | ||
2161 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2162 | const char *pin, int status) | |
2163 | { | |
2164 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2165 | ||
2166 | if (!w) { | |
30a6a1a4 | 2167 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2168 | return -EINVAL; |
0d86733c MB |
2169 | } |
2170 | ||
1a8b2d9d MB |
2171 | if (w->connected != status) |
2172 | dapm_mark_dirty(w, "pin configuration"); | |
2173 | ||
91a5fca4 LPC |
2174 | w->connected = status; |
2175 | if (status == 0) | |
2176 | w->force = 0; | |
2177 | ||
2178 | return 0; | |
a5302181 LG |
2179 | } |
2180 | ||
2b97eabc | 2181 | /** |
a5302181 | 2182 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2183 | * @dapm: DAPM context |
2b97eabc RP |
2184 | * |
2185 | * Walks all dapm audio paths and powers widgets according to their | |
2186 | * stream or path usage. | |
2187 | * | |
2188 | * Returns 0 for success. | |
2189 | */ | |
ce6120cc | 2190 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2191 | { |
a73fb2df LG |
2192 | int ret; |
2193 | ||
4f4c0072 MB |
2194 | /* |
2195 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2196 | * silly DAPM runs during card startup. | |
2197 | */ | |
2198 | if (!dapm->card || !dapm->card->instantiated) | |
2199 | return 0; | |
2200 | ||
3cd04343 | 2201 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
a73fb2df LG |
2202 | ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2203 | mutex_unlock(&dapm->card->dapm_mutex); | |
2204 | return ret; | |
2b97eabc | 2205 | } |
a5302181 | 2206 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2207 | |
ce6120cc | 2208 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 2209 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
2210 | { |
2211 | struct snd_soc_dapm_path *path; | |
2212 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 2213 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 2214 | const char *sink; |
215edda3 | 2215 | const char *control = route->control; |
ead9b919 JN |
2216 | const char *source; |
2217 | char prefixed_sink[80]; | |
2218 | char prefixed_source[80]; | |
2b97eabc RP |
2219 | int ret = 0; |
2220 | ||
88e8b9a8 | 2221 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
2222 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2223 | dapm->codec->name_prefix, route->sink); | |
2224 | sink = prefixed_sink; | |
2225 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2226 | dapm->codec->name_prefix, route->source); | |
2227 | source = prefixed_source; | |
2228 | } else { | |
2229 | sink = route->sink; | |
2230 | source = route->source; | |
2231 | } | |
2232 | ||
97c866de JN |
2233 | /* |
2234 | * find src and dest widgets over all widgets but favor a widget from | |
2235 | * current DAPM context | |
2236 | */ | |
2237 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 2238 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
2239 | wtsink = w; |
2240 | if (w->dapm == dapm) | |
2241 | wsink = w; | |
2b97eabc RP |
2242 | continue; |
2243 | } | |
2244 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
2245 | wtsource = w; |
2246 | if (w->dapm == dapm) | |
2247 | wsource = w; | |
2b97eabc RP |
2248 | } |
2249 | } | |
97c866de JN |
2250 | /* use widget from another DAPM context if not found from this */ |
2251 | if (!wsink) | |
2252 | wsink = wtsink; | |
2253 | if (!wsource) | |
2254 | wsource = wtsource; | |
2b97eabc | 2255 | |
30a6a1a4 LG |
2256 | if (wsource == NULL) { |
2257 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2258 | route->source); | |
2b97eabc | 2259 | return -ENODEV; |
30a6a1a4 LG |
2260 | } |
2261 | if (wsink == NULL) { | |
2262 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2263 | route->sink); | |
2264 | return -ENODEV; | |
2265 | } | |
2b97eabc RP |
2266 | |
2267 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2268 | if (!path) | |
2269 | return -ENOMEM; | |
2270 | ||
2271 | path->source = wsource; | |
2272 | path->sink = wsink; | |
215edda3 | 2273 | path->connected = route->connected; |
2b97eabc RP |
2274 | INIT_LIST_HEAD(&path->list); |
2275 | INIT_LIST_HEAD(&path->list_source); | |
2276 | INIT_LIST_HEAD(&path->list_sink); | |
2277 | ||
2278 | /* check for external widgets */ | |
2279 | if (wsink->id == snd_soc_dapm_input) { | |
2280 | if (wsource->id == snd_soc_dapm_micbias || | |
2281 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2282 | wsource->id == snd_soc_dapm_line || |
2283 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2284 | wsink->ext = 1; |
2285 | } | |
2286 | if (wsource->id == snd_soc_dapm_output) { | |
2287 | if (wsink->id == snd_soc_dapm_spk || | |
2288 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2289 | wsink->id == snd_soc_dapm_line || |
2290 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2291 | wsource->ext = 1; |
2292 | } | |
2293 | ||
2294 | /* connect static paths */ | |
2295 | if (control == NULL) { | |
8ddab3f5 | 2296 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2297 | list_add(&path->list_sink, &wsink->sources); |
2298 | list_add(&path->list_source, &wsource->sinks); | |
2299 | path->connect = 1; | |
2300 | return 0; | |
2301 | } | |
2302 | ||
2303 | /* connect dynamic paths */ | |
dc2bea61 | 2304 | switch (wsink->id) { |
2b97eabc RP |
2305 | case snd_soc_dapm_adc: |
2306 | case snd_soc_dapm_dac: | |
2307 | case snd_soc_dapm_pga: | |
d88429a6 | 2308 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2309 | case snd_soc_dapm_input: |
2310 | case snd_soc_dapm_output: | |
1ab97c8c | 2311 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2312 | case snd_soc_dapm_micbias: |
2313 | case snd_soc_dapm_vmid: | |
2314 | case snd_soc_dapm_pre: | |
2315 | case snd_soc_dapm_post: | |
246d0a17 | 2316 | case snd_soc_dapm_supply: |
62ea874a | 2317 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2318 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2319 | case snd_soc_dapm_aif_in: |
2320 | case snd_soc_dapm_aif_out: | |
888df395 | 2321 | case snd_soc_dapm_dai: |
c74184ed | 2322 | case snd_soc_dapm_dai_link: |
8ddab3f5 | 2323 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2324 | list_add(&path->list_sink, &wsink->sources); |
2325 | list_add(&path->list_source, &wsource->sinks); | |
2326 | path->connect = 1; | |
2327 | return 0; | |
2328 | case snd_soc_dapm_mux: | |
24ff33ac | 2329 | case snd_soc_dapm_virt_mux: |
74155556 | 2330 | case snd_soc_dapm_value_mux: |
ce6120cc | 2331 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2332 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2333 | if (ret != 0) |
2334 | goto err; | |
2335 | break; | |
2336 | case snd_soc_dapm_switch: | |
2337 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2338 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2339 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2340 | if (ret != 0) |
2341 | goto err; | |
2342 | break; | |
2343 | case snd_soc_dapm_hp: | |
2344 | case snd_soc_dapm_mic: | |
2345 | case snd_soc_dapm_line: | |
2346 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2347 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2348 | list_add(&path->list_sink, &wsink->sources); |
2349 | list_add(&path->list_source, &wsource->sinks); | |
2350 | path->connect = 0; | |
2351 | return 0; | |
2352 | } | |
fabd0384 MB |
2353 | |
2354 | dapm_mark_dirty(wsource, "Route added"); | |
2355 | dapm_mark_dirty(wsink, "Route added"); | |
2356 | ||
2b97eabc RP |
2357 | return 0; |
2358 | ||
2359 | err: | |
30a6a1a4 | 2360 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
f7d41ae8 | 2361 | source, control, sink); |
2b97eabc RP |
2362 | kfree(path); |
2363 | return ret; | |
2364 | } | |
105f1c28 | 2365 | |
efcc3c61 MB |
2366 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2367 | const struct snd_soc_dapm_route *route) | |
2368 | { | |
2369 | struct snd_soc_dapm_path *path, *p; | |
2370 | const char *sink; | |
2371 | const char *source; | |
2372 | char prefixed_sink[80]; | |
2373 | char prefixed_source[80]; | |
2374 | ||
2375 | if (route->control) { | |
2376 | dev_err(dapm->dev, | |
30a6a1a4 | 2377 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2378 | return -EINVAL; |
2379 | } | |
2380 | ||
2381 | if (dapm->codec && dapm->codec->name_prefix) { | |
2382 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2383 | dapm->codec->name_prefix, route->sink); | |
2384 | sink = prefixed_sink; | |
2385 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2386 | dapm->codec->name_prefix, route->source); | |
2387 | source = prefixed_source; | |
2388 | } else { | |
2389 | sink = route->sink; | |
2390 | source = route->source; | |
2391 | } | |
2392 | ||
2393 | path = NULL; | |
2394 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2395 | if (strcmp(p->source->name, source) != 0) | |
2396 | continue; | |
2397 | if (strcmp(p->sink->name, sink) != 0) | |
2398 | continue; | |
2399 | path = p; | |
2400 | break; | |
2401 | } | |
2402 | ||
2403 | if (path) { | |
2404 | dapm_mark_dirty(path->source, "Route removed"); | |
2405 | dapm_mark_dirty(path->sink, "Route removed"); | |
2406 | ||
2407 | list_del(&path->list); | |
2408 | list_del(&path->list_sink); | |
2409 | list_del(&path->list_source); | |
2410 | kfree(path); | |
2411 | } else { | |
30a6a1a4 | 2412 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2413 | source, sink); |
2414 | } | |
2415 | ||
2416 | return 0; | |
2417 | } | |
2418 | ||
105f1c28 MB |
2419 | /** |
2420 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2421 | * @dapm: DAPM context |
105f1c28 MB |
2422 | * @route: audio routes |
2423 | * @num: number of routes | |
2424 | * | |
2425 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2426 | * the widget receiving the audio signal, whilst the source is the sender | |
2427 | * of the audio signal. | |
2428 | * | |
2429 | * Returns 0 for success else error. On error all resources can be freed | |
2430 | * with a call to snd_soc_card_free(). | |
2431 | */ | |
ce6120cc | 2432 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2433 | const struct snd_soc_dapm_route *route, int num) |
2434 | { | |
62d4a4b9 | 2435 | int i, r, ret = 0; |
105f1c28 | 2436 | |
a73fb2df | 2437 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2438 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2439 | r = snd_soc_dapm_add_route(dapm, route); |
2440 | if (r < 0) { | |
30a6a1a4 LG |
2441 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2442 | route->source, | |
2443 | route->control ? route->control : "direct", | |
2444 | route->sink); | |
62d4a4b9 | 2445 | ret = r; |
105f1c28 MB |
2446 | } |
2447 | route++; | |
2448 | } | |
a73fb2df | 2449 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2450 | |
60884c27 | 2451 | return ret; |
105f1c28 MB |
2452 | } |
2453 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2454 | ||
efcc3c61 MB |
2455 | /** |
2456 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2457 | * @dapm: DAPM context | |
2458 | * @route: audio routes | |
2459 | * @num: number of routes | |
2460 | * | |
2461 | * Removes routes from the DAPM context. | |
2462 | */ | |
2463 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2464 | const struct snd_soc_dapm_route *route, int num) | |
2465 | { | |
2466 | int i, ret = 0; | |
2467 | ||
2468 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2469 | for (i = 0; i < num; i++) { | |
2470 | snd_soc_dapm_del_route(dapm, route); | |
2471 | route++; | |
2472 | } | |
2473 | mutex_unlock(&dapm->card->dapm_mutex); | |
2474 | ||
2475 | return ret; | |
2476 | } | |
2477 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2478 | ||
bf3a9e13 MB |
2479 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2480 | const struct snd_soc_dapm_route *route) | |
2481 | { | |
2482 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2483 | route->source, | |
2484 | true); | |
2485 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2486 | route->sink, | |
2487 | true); | |
2488 | struct snd_soc_dapm_path *path; | |
2489 | int count = 0; | |
2490 | ||
2491 | if (!source) { | |
30a6a1a4 | 2492 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2493 | route->source); |
2494 | return -ENODEV; | |
2495 | } | |
2496 | ||
2497 | if (!sink) { | |
30a6a1a4 | 2498 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2499 | route->sink); |
2500 | return -ENODEV; | |
2501 | } | |
2502 | ||
2503 | if (route->control || route->connected) | |
30a6a1a4 | 2504 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2505 | route->source, route->sink); |
2506 | ||
2507 | list_for_each_entry(path, &source->sinks, list_source) { | |
2508 | if (path->sink == sink) { | |
2509 | path->weak = 1; | |
2510 | count++; | |
2511 | } | |
2512 | } | |
2513 | ||
2514 | if (count == 0) | |
30a6a1a4 | 2515 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2516 | route->source, route->sink); |
2517 | if (count > 1) | |
30a6a1a4 | 2518 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2519 | count, route->source, route->sink); |
2520 | ||
2521 | return 0; | |
2522 | } | |
2523 | ||
2524 | /** | |
2525 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2526 | * @dapm: DAPM context | |
2527 | * @route: audio routes | |
2528 | * @num: number of routes | |
2529 | * | |
2530 | * Mark existing routes matching those specified in the passed array | |
2531 | * as being weak, meaning that they are ignored for the purpose of | |
2532 | * power decisions. The main intended use case is for sidetone paths | |
2533 | * which couple audio between other independent paths if they are both | |
2534 | * active in order to make the combination work better at the user | |
2535 | * level but which aren't intended to be "used". | |
2536 | * | |
2537 | * Note that CODEC drivers should not use this as sidetone type paths | |
2538 | * can frequently also be used as bypass paths. | |
2539 | */ | |
2540 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2541 | const struct snd_soc_dapm_route *route, int num) | |
2542 | { | |
2543 | int i, err; | |
2544 | int ret = 0; | |
2545 | ||
a73fb2df | 2546 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2547 | for (i = 0; i < num; i++) { |
2548 | err = snd_soc_dapm_weak_route(dapm, route); | |
2549 | if (err) | |
2550 | ret = err; | |
2551 | route++; | |
2552 | } | |
a73fb2df | 2553 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2554 | |
2555 | return ret; | |
2556 | } | |
2557 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2558 | ||
2b97eabc RP |
2559 | /** |
2560 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2561 | * @dapm: DAPM context |
2b97eabc RP |
2562 | * |
2563 | * Checks the codec for any new dapm widgets and creates them if found. | |
2564 | * | |
2565 | * Returns 0 for success. | |
2566 | */ | |
ce6120cc | 2567 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2568 | { |
2569 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2570 | unsigned int val; |
2b97eabc | 2571 | |
a73fb2df LG |
2572 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
2573 | ||
97c866de | 2574 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2575 | { |
2576 | if (w->new) | |
2577 | continue; | |
2578 | ||
fad59888 SW |
2579 | if (w->num_kcontrols) { |
2580 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2581 | sizeof(struct snd_kcontrol *), | |
2582 | GFP_KERNEL); | |
a73fb2df LG |
2583 | if (!w->kcontrols) { |
2584 | mutex_unlock(&dapm->card->dapm_mutex); | |
fad59888 | 2585 | return -ENOMEM; |
a73fb2df | 2586 | } |
fad59888 SW |
2587 | } |
2588 | ||
2b97eabc RP |
2589 | switch(w->id) { |
2590 | case snd_soc_dapm_switch: | |
2591 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2592 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2593 | dapm_new_mixer(w); |
2b97eabc RP |
2594 | break; |
2595 | case snd_soc_dapm_mux: | |
24ff33ac | 2596 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2597 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2598 | dapm_new_mux(w); |
2b97eabc | 2599 | break; |
2b97eabc | 2600 | case snd_soc_dapm_pga: |
d88429a6 | 2601 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2602 | dapm_new_pga(w); |
2b97eabc | 2603 | break; |
7ca3a18b | 2604 | default: |
2b97eabc RP |
2605 | break; |
2606 | } | |
b66a70d5 MB |
2607 | |
2608 | /* Read the initial power state from the device */ | |
2609 | if (w->reg >= 0) { | |
0445bdf4 | 2610 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2611 | val &= 1 << w->shift; |
2612 | if (w->invert) | |
2613 | val = !val; | |
2614 | ||
2615 | if (val) | |
2616 | w->power = 1; | |
2617 | } | |
2618 | ||
2b97eabc | 2619 | w->new = 1; |
d5d1e0be | 2620 | |
7508b12a | 2621 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2622 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2623 | } |
2624 | ||
ce6120cc | 2625 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df | 2626 | mutex_unlock(&dapm->card->dapm_mutex); |
2b97eabc RP |
2627 | return 0; |
2628 | } | |
2629 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2630 | ||
2631 | /** | |
2632 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2633 | * @kcontrol: mixer control | |
ac11a2b3 | 2634 | * @ucontrol: control element information |
2b97eabc RP |
2635 | * |
2636 | * Callback to get the value of a dapm mixer control. | |
2637 | * | |
2638 | * Returns 0 for success. | |
2639 | */ | |
2640 | int snd_soc_dapm_get_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]; | |
4eaa9819 JS |
2645 | struct soc_mixer_control *mc = |
2646 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2647 | unsigned int reg = mc->reg; |
2648 | unsigned int shift = mc->shift; | |
4eaa9819 | 2649 | int max = mc->max; |
815ecf8d | 2650 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 BT |
2651 | unsigned int invert = mc->invert; |
2652 | ||
2653 | if (snd_soc_volsw_is_stereo(mc)) | |
2654 | dev_warn(widget->dapm->dev, | |
30a6a1a4 | 2655 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2656 | kcontrol->id.name); |
2b97eabc | 2657 | |
2b97eabc RP |
2658 | ucontrol->value.integer.value[0] = |
2659 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
da602ab8 | 2660 | if (invert) |
2b97eabc | 2661 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2662 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2663 | |
2664 | return 0; | |
2665 | } | |
2666 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2667 | ||
2668 | /** | |
2669 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2670 | * @kcontrol: mixer control | |
ac11a2b3 | 2671 | * @ucontrol: control element information |
2b97eabc RP |
2672 | * |
2673 | * Callback to set the value of a dapm mixer control. | |
2674 | * | |
2675 | * Returns 0 for success. | |
2676 | */ | |
2677 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2678 | struct snd_ctl_elem_value *ucontrol) | |
2679 | { | |
fafd2176 SW |
2680 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2681 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2682 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2683 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2684 | struct soc_mixer_control *mc = |
2685 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2686 | unsigned int reg = mc->reg; |
2687 | unsigned int shift = mc->shift; | |
4eaa9819 | 2688 | int max = mc->max; |
815ecf8d JS |
2689 | unsigned int mask = (1 << fls(max)) - 1; |
2690 | unsigned int invert = mc->invert; | |
e9cf7049 | 2691 | unsigned int val; |
97404f2e MB |
2692 | int connect, change; |
2693 | struct snd_soc_dapm_update update; | |
fafd2176 | 2694 | int wi; |
2b97eabc | 2695 | |
da602ab8 BT |
2696 | if (snd_soc_volsw_is_stereo(mc)) |
2697 | dev_warn(widget->dapm->dev, | |
30a6a1a4 | 2698 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2699 | kcontrol->id.name); |
2700 | ||
2b97eabc | 2701 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2702 | connect = !!val; |
2b97eabc RP |
2703 | |
2704 | if (invert) | |
a7a4ac86 | 2705 | val = max - val; |
e9cf7049 | 2706 | mask = mask << shift; |
2b97eabc | 2707 | val = val << shift; |
2b97eabc | 2708 | |
3cd04343 | 2709 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2710 | |
e9cf7049 | 2711 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2712 | if (change) { |
fafd2176 SW |
2713 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2714 | widget = wlist->widgets[wi]; | |
283375ce | 2715 | |
fafd2176 | 2716 | widget->value = val; |
97404f2e | 2717 | |
fafd2176 SW |
2718 | update.kcontrol = kcontrol; |
2719 | update.widget = widget; | |
2720 | update.reg = reg; | |
2721 | update.mask = mask; | |
2722 | update.val = val; | |
2723 | widget->dapm->update = &update; | |
97404f2e | 2724 | |
4edbb345 | 2725 | soc_dapm_mixer_update_power(widget, kcontrol, connect); |
fafd2176 SW |
2726 | |
2727 | widget->dapm->update = NULL; | |
2728 | } | |
283375ce MB |
2729 | } |
2730 | ||
a73fb2df | 2731 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2732 | return 0; |
2b97eabc RP |
2733 | } |
2734 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2735 | ||
2736 | /** | |
2737 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2738 | * @kcontrol: mixer control | |
ac11a2b3 | 2739 | * @ucontrol: control element information |
2b97eabc RP |
2740 | * |
2741 | * Callback to get the value of a dapm enumerated double mixer control. | |
2742 | * | |
2743 | * Returns 0 for success. | |
2744 | */ | |
2745 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2746 | struct snd_ctl_elem_value *ucontrol) | |
2747 | { | |
fafd2176 SW |
2748 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2749 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2750 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2751 | unsigned int val; |
2b97eabc | 2752 | |
2b97eabc | 2753 | val = snd_soc_read(widget->codec, e->reg); |
86767b7d | 2754 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2755 | if (e->shift_l != e->shift_r) |
2756 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2757 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2758 | |
2759 | return 0; | |
2760 | } | |
2761 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2762 | ||
2763 | /** | |
2764 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2765 | * @kcontrol: mixer control | |
ac11a2b3 | 2766 | * @ucontrol: control element information |
2b97eabc RP |
2767 | * |
2768 | * Callback to set the value of a dapm enumerated double mixer control. | |
2769 | * | |
2770 | * Returns 0 for success. | |
2771 | */ | |
2772 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2773 | struct snd_ctl_elem_value *ucontrol) | |
2774 | { | |
fafd2176 SW |
2775 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2776 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2777 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2778 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2779 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2780 | unsigned int val, mux, change; |
86767b7d | 2781 | unsigned int mask; |
97404f2e | 2782 | struct snd_soc_dapm_update update; |
fafd2176 | 2783 | int wi; |
2b97eabc | 2784 | |
f8ba0b7b | 2785 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2786 | return -EINVAL; |
2787 | mux = ucontrol->value.enumerated.item[0]; | |
2788 | val = mux << e->shift_l; | |
86767b7d | 2789 | mask = e->mask << e->shift_l; |
2b97eabc | 2790 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2791 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2792 | return -EINVAL; |
2793 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2794 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2795 | } |
2796 | ||
3cd04343 | 2797 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2798 | |
3a65577d | 2799 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2800 | if (change) { |
2801 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2802 | widget = wlist->widgets[wi]; | |
2803 | ||
2804 | widget->value = val; | |
1642e3d4 | 2805 | |
fafd2176 SW |
2806 | update.kcontrol = kcontrol; |
2807 | update.widget = widget; | |
2808 | update.reg = e->reg; | |
2809 | update.mask = mask; | |
2810 | update.val = val; | |
2811 | widget->dapm->update = &update; | |
1642e3d4 | 2812 | |
4edbb345 | 2813 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1642e3d4 | 2814 | |
fafd2176 SW |
2815 | widget->dapm->update = NULL; |
2816 | } | |
2817 | } | |
2b97eabc | 2818 | |
a73fb2df | 2819 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2820 | return change; |
2b97eabc RP |
2821 | } |
2822 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2823 | ||
d2b247a8 MB |
2824 | /** |
2825 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2826 | * @kcontrol: mixer control | |
2827 | * @ucontrol: control element information | |
2828 | * | |
2829 | * Returns 0 for success. | |
2830 | */ | |
2831 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2832 | struct snd_ctl_elem_value *ucontrol) | |
2833 | { | |
fafd2176 SW |
2834 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2835 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2836 | |
2837 | ucontrol->value.enumerated.item[0] = widget->value; | |
2838 | ||
2839 | return 0; | |
2840 | } | |
2841 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2842 | ||
2843 | /** | |
2844 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2845 | * @kcontrol: mixer control | |
2846 | * @ucontrol: control element information | |
2847 | * | |
2848 | * Returns 0 for success. | |
2849 | */ | |
2850 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2851 | struct snd_ctl_elem_value *ucontrol) | |
2852 | { | |
fafd2176 SW |
2853 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2854 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2855 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2856 | struct snd_soc_card *card = codec->card; |
d2b247a8 MB |
2857 | struct soc_enum *e = |
2858 | (struct soc_enum *)kcontrol->private_value; | |
2859 | int change; | |
2860 | int ret = 0; | |
fafd2176 | 2861 | int wi; |
d2b247a8 MB |
2862 | |
2863 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2864 | return -EINVAL; | |
2865 | ||
3cd04343 | 2866 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 MB |
2867 | |
2868 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2869 | if (change) { |
2870 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2871 | widget = wlist->widgets[wi]; | |
2872 | ||
2873 | widget->value = ucontrol->value.enumerated.item[0]; | |
2874 | ||
4edbb345 | 2875 | soc_dapm_mux_update_power(widget, kcontrol, widget->value, e); |
fafd2176 SW |
2876 | } |
2877 | } | |
d2b247a8 | 2878 | |
a73fb2df | 2879 | mutex_unlock(&card->dapm_mutex); |
d2b247a8 MB |
2880 | return ret; |
2881 | } | |
2882 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2883 | ||
2e72f8e3 PU |
2884 | /** |
2885 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2886 | * callback | |
2887 | * @kcontrol: mixer control | |
2888 | * @ucontrol: control element information | |
2889 | * | |
2890 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2891 | * | |
2892 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2893 | * used for handling bitfield coded enumeration for example. | |
2894 | * | |
2895 | * Returns 0 for success. | |
2896 | */ | |
2897 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2898 | struct snd_ctl_elem_value *ucontrol) | |
2899 | { | |
fafd2176 SW |
2900 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2901 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2902 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2903 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2904 | |
2905 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2906 | val = (reg_val >> e->shift_l) & e->mask; | |
2907 | for (mux = 0; mux < e->max; mux++) { | |
2908 | if (val == e->values[mux]) | |
2909 | break; | |
2910 | } | |
2911 | ucontrol->value.enumerated.item[0] = mux; | |
2912 | if (e->shift_l != e->shift_r) { | |
2913 | val = (reg_val >> e->shift_r) & e->mask; | |
2914 | for (mux = 0; mux < e->max; mux++) { | |
2915 | if (val == e->values[mux]) | |
2916 | break; | |
2917 | } | |
2918 | ucontrol->value.enumerated.item[1] = mux; | |
2919 | } | |
2920 | ||
2921 | return 0; | |
2922 | } | |
2923 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2924 | ||
2925 | /** | |
2926 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2927 | * callback | |
2928 | * @kcontrol: mixer control | |
2929 | * @ucontrol: control element information | |
2930 | * | |
2931 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2932 | * | |
2933 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2934 | * used for handling bitfield coded enumeration for example. | |
2935 | * | |
2936 | * Returns 0 for success. | |
2937 | */ | |
2938 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2939 | struct snd_ctl_elem_value *ucontrol) | |
2940 | { | |
fafd2176 SW |
2941 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2942 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2943 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2944 | struct snd_soc_card *card = codec->card; |
74155556 | 2945 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2946 | unsigned int val, mux, change; |
46f5822f | 2947 | unsigned int mask; |
97404f2e | 2948 | struct snd_soc_dapm_update update; |
fafd2176 | 2949 | int wi; |
2e72f8e3 PU |
2950 | |
2951 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2952 | return -EINVAL; | |
2953 | mux = ucontrol->value.enumerated.item[0]; | |
2954 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2955 | mask = e->mask << e->shift_l; | |
2956 | if (e->shift_l != e->shift_r) { | |
2957 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2958 | return -EINVAL; | |
2959 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2960 | mask |= e->mask << e->shift_r; | |
2961 | } | |
2962 | ||
3cd04343 | 2963 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2964 | |
3a65577d | 2965 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2966 | if (change) { |
2967 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2968 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2969 | |
fafd2176 | 2970 | widget->value = val; |
1642e3d4 | 2971 | |
fafd2176 SW |
2972 | update.kcontrol = kcontrol; |
2973 | update.widget = widget; | |
2974 | update.reg = e->reg; | |
2975 | update.mask = mask; | |
2976 | update.val = val; | |
2977 | widget->dapm->update = &update; | |
1642e3d4 | 2978 | |
4edbb345 | 2979 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
fafd2176 SW |
2980 | |
2981 | widget->dapm->update = NULL; | |
2982 | } | |
2983 | } | |
2e72f8e3 | 2984 | |
a73fb2df | 2985 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2986 | return change; |
2e72f8e3 PU |
2987 | } |
2988 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2989 | ||
8b37dbd2 MB |
2990 | /** |
2991 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2992 | * | |
2993 | * @kcontrol: mixer control | |
2994 | * @uinfo: control element information | |
2995 | * | |
2996 | * Callback to provide information about a pin switch control. | |
2997 | */ | |
2998 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2999 | struct snd_ctl_elem_info *uinfo) | |
3000 | { | |
3001 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3002 | uinfo->count = 1; | |
3003 | uinfo->value.integer.min = 0; | |
3004 | uinfo->value.integer.max = 1; | |
3005 | ||
3006 | return 0; | |
3007 | } | |
3008 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3009 | ||
3010 | /** | |
3011 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3012 | * | |
3013 | * @kcontrol: mixer control | |
3014 | * @ucontrol: Value | |
3015 | */ | |
3016 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3017 | struct snd_ctl_elem_value *ucontrol) | |
3018 | { | |
48a8c394 | 3019 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3020 | const char *pin = (const char *)kcontrol->private_value; |
3021 | ||
3cd04343 | 3022 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3023 | |
3024 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3025 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3026 | |
a73fb2df | 3027 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3028 | |
3029 | return 0; | |
3030 | } | |
3031 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3032 | ||
3033 | /** | |
3034 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3035 | * | |
3036 | * @kcontrol: mixer control | |
3037 | * @ucontrol: Value | |
3038 | */ | |
3039 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3040 | struct snd_ctl_elem_value *ucontrol) | |
3041 | { | |
48a8c394 | 3042 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3043 | const char *pin = (const char *)kcontrol->private_value; |
3044 | ||
3cd04343 | 3045 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3046 | |
3047 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 3048 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3049 | else |
48a8c394 | 3050 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3051 | |
a73fb2df | 3052 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3053 | |
a73fb2df | 3054 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3055 | return 0; |
3056 | } | |
3057 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3058 | ||
5ba06fc9 MB |
3059 | static struct snd_soc_dapm_widget * |
3060 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3061 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3062 | { |
3063 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 3064 | size_t name_len; |
62ea874a | 3065 | int ret; |
2b97eabc RP |
3066 | |
3067 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3068 | return NULL; |
2b97eabc | 3069 | |
62ea874a MB |
3070 | switch (w->id) { |
3071 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3072 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3073 | if (IS_ERR(w->regulator)) { | |
3074 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3075 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3076 | w->name, ret); |
5ba06fc9 | 3077 | return NULL; |
62ea874a | 3078 | } |
8784c77a MB |
3079 | |
3080 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
3081 | ret = regulator_allow_bypass(w->regulator, true); | |
3082 | if (ret != 0) | |
3083 | dev_warn(w->dapm->dev, | |
3084 | "ASoC: Failed to unbypass %s: %d\n", | |
3085 | w->name, ret); | |
3086 | } | |
62ea874a | 3087 | break; |
d7e7eb91 | 3088 | case snd_soc_dapm_clock_supply: |
165961ef | 3089 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3090 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3091 | if (IS_ERR(w->clk)) { |
3092 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3093 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3094 | w->name, ret); |
3095 | return NULL; | |
3096 | } | |
ec02995a MB |
3097 | #else |
3098 | return NULL; | |
3099 | #endif | |
d7e7eb91 | 3100 | break; |
62ea874a MB |
3101 | default: |
3102 | break; | |
3103 | } | |
2b97eabc | 3104 | |
ead9b919 | 3105 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 3106 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
3107 | name_len += 1 + strlen(dapm->codec->name_prefix); |
3108 | w->name = kmalloc(name_len, GFP_KERNEL); | |
3109 | if (w->name == NULL) { | |
3110 | kfree(w); | |
5ba06fc9 | 3111 | return NULL; |
ead9b919 | 3112 | } |
88e8b9a8 | 3113 | if (dapm->codec && dapm->codec->name_prefix) |
888df395 | 3114 | snprintf((char *)w->name, name_len, "%s %s", |
ead9b919 JN |
3115 | dapm->codec->name_prefix, widget->name); |
3116 | else | |
888df395 | 3117 | snprintf((char *)w->name, name_len, "%s", widget->name); |
ead9b919 | 3118 | |
7ca3a18b MB |
3119 | switch (w->id) { |
3120 | case snd_soc_dapm_switch: | |
3121 | case snd_soc_dapm_mixer: | |
3122 | case snd_soc_dapm_mixer_named_ctl: | |
3123 | w->power_check = dapm_generic_check_power; | |
3124 | break; | |
3125 | case snd_soc_dapm_mux: | |
3126 | case snd_soc_dapm_virt_mux: | |
3127 | case snd_soc_dapm_value_mux: | |
3128 | w->power_check = dapm_generic_check_power; | |
3129 | break; | |
3130 | case snd_soc_dapm_adc: | |
3131 | case snd_soc_dapm_aif_out: | |
3132 | w->power_check = dapm_adc_check_power; | |
3133 | break; | |
3134 | case snd_soc_dapm_dac: | |
3135 | case snd_soc_dapm_aif_in: | |
3136 | w->power_check = dapm_dac_check_power; | |
3137 | break; | |
3138 | case snd_soc_dapm_pga: | |
3139 | case snd_soc_dapm_out_drv: | |
3140 | case snd_soc_dapm_input: | |
3141 | case snd_soc_dapm_output: | |
3142 | case snd_soc_dapm_micbias: | |
3143 | case snd_soc_dapm_spk: | |
3144 | case snd_soc_dapm_hp: | |
3145 | case snd_soc_dapm_mic: | |
3146 | case snd_soc_dapm_line: | |
c74184ed | 3147 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3148 | w->power_check = dapm_generic_check_power; |
3149 | break; | |
3150 | case snd_soc_dapm_supply: | |
62ea874a | 3151 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3152 | case snd_soc_dapm_clock_supply: |
7ca3a18b MB |
3153 | w->power_check = dapm_supply_check_power; |
3154 | break; | |
888df395 MB |
3155 | case snd_soc_dapm_dai: |
3156 | w->power_check = dapm_dai_check_power; | |
3157 | break; | |
7ca3a18b MB |
3158 | default: |
3159 | w->power_check = dapm_always_on_check_power; | |
3160 | break; | |
3161 | } | |
3162 | ||
ce6120cc LG |
3163 | w->dapm = dapm; |
3164 | w->codec = dapm->codec; | |
b7950641 | 3165 | w->platform = dapm->platform; |
2b97eabc RP |
3166 | INIT_LIST_HEAD(&w->sources); |
3167 | INIT_LIST_HEAD(&w->sinks); | |
3168 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3169 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3170 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3171 | |
3172 | /* machine layer set ups unconnected pins and insertions */ | |
3173 | w->connected = 1; | |
5ba06fc9 | 3174 | return w; |
2b97eabc | 3175 | } |
2b97eabc | 3176 | |
4ba1327a MB |
3177 | /** |
3178 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3179 | * @dapm: DAPM context |
4ba1327a MB |
3180 | * @widget: widget array |
3181 | * @num: number of widgets | |
3182 | * | |
3183 | * Creates new DAPM controls based upon the templates. | |
3184 | * | |
3185 | * Returns 0 for success else error. | |
3186 | */ | |
ce6120cc | 3187 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3188 | const struct snd_soc_dapm_widget *widget, |
3189 | int num) | |
3190 | { | |
5ba06fc9 MB |
3191 | struct snd_soc_dapm_widget *w; |
3192 | int i; | |
60884c27 | 3193 | int ret = 0; |
4ba1327a | 3194 | |
a73fb2df | 3195 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3196 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3197 | w = snd_soc_dapm_new_control(dapm, widget); |
3198 | if (!w) { | |
f7d41ae8 | 3199 | dev_err(dapm->dev, |
5ba06fc9 MB |
3200 | "ASoC: Failed to create DAPM control %s\n", |
3201 | widget->name); | |
60884c27 DC |
3202 | ret = -ENOMEM; |
3203 | break; | |
b8b33cb5 | 3204 | } |
4ba1327a MB |
3205 | widget++; |
3206 | } | |
a73fb2df | 3207 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3208 | return ret; |
4ba1327a MB |
3209 | } |
3210 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3211 | ||
c74184ed MB |
3212 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3213 | struct snd_kcontrol *kcontrol, int event) | |
3214 | { | |
3215 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3216 | struct snd_soc_dai *source, *sink; | |
3217 | const struct snd_soc_pcm_stream *config = w->params; | |
3218 | struct snd_pcm_substream substream; | |
9747cec2 | 3219 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3220 | u64 fmt; |
3221 | int ret; | |
3222 | ||
3223 | BUG_ON(!config); | |
3224 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3225 | ||
3226 | /* We only support a single source and sink, pick the first */ | |
3227 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3228 | list_sink); | |
3229 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3230 | list_source); | |
3231 | ||
3232 | BUG_ON(!source_p || !sink_p); | |
3233 | BUG_ON(!sink_p->source || !source_p->sink); | |
3234 | BUG_ON(!source_p->source || !sink_p->sink); | |
3235 | ||
3236 | source = source_p->source->priv; | |
3237 | sink = sink_p->sink->priv; | |
3238 | ||
3239 | /* Be a little careful as we don't want to overflow the mask array */ | |
3240 | if (config->formats) { | |
3241 | fmt = ffs(config->formats) - 1; | |
3242 | } else { | |
30a6a1a4 | 3243 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3244 | config->formats); |
3245 | fmt = 0; | |
3246 | } | |
3247 | ||
3248 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3249 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3250 | if (!params) { | |
3251 | ret = -ENOMEM; | |
3252 | goto out; | |
3253 | } | |
3254 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3255 | |
9747cec2 | 3256 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3257 | config->rate_min; |
9747cec2 | 3258 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3259 | config->rate_max; |
3260 | ||
9747cec2 | 3261 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3262 | = config->channels_min; |
9747cec2 | 3263 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3264 | = config->channels_max; |
3265 | ||
3266 | memset(&substream, 0, sizeof(substream)); | |
3267 | ||
3268 | switch (event) { | |
3269 | case SND_SOC_DAPM_PRE_PMU: | |
3270 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3271 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3272 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3273 | params, source); |
c74184ed MB |
3274 | if (ret != 0) { |
3275 | dev_err(source->dev, | |
30a6a1a4 | 3276 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3277 | goto out; |
c74184ed MB |
3278 | } |
3279 | } | |
3280 | ||
3281 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3282 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3283 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3284 | sink); |
3285 | if (ret != 0) { | |
3286 | dev_err(sink->dev, | |
30a6a1a4 | 3287 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3288 | goto out; |
c74184ed MB |
3289 | } |
3290 | } | |
3291 | break; | |
3292 | ||
3293 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3294 | ret = snd_soc_dai_digital_mute(sink, 0, |
3295 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3296 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3297 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3298 | ret = 0; |
c74184ed MB |
3299 | break; |
3300 | ||
3301 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3302 | ret = snd_soc_dai_digital_mute(sink, 1, |
3303 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3304 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3305 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3306 | ret = 0; |
c74184ed MB |
3307 | break; |
3308 | ||
3309 | default: | |
3310 | BUG(); | |
3311 | return -EINVAL; | |
3312 | } | |
3313 | ||
9747cec2 MB |
3314 | out: |
3315 | kfree(params); | |
3316 | return ret; | |
c74184ed MB |
3317 | } |
3318 | ||
3319 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3320 | const struct snd_soc_pcm_stream *params, | |
3321 | struct snd_soc_dapm_widget *source, | |
3322 | struct snd_soc_dapm_widget *sink) | |
3323 | { | |
3324 | struct snd_soc_dapm_route routes[2]; | |
3325 | struct snd_soc_dapm_widget template; | |
3326 | struct snd_soc_dapm_widget *w; | |
3327 | size_t len; | |
3328 | char *link_name; | |
3329 | ||
3330 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3331 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3332 | if (!link_name) | |
3333 | return -ENOMEM; | |
3334 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3335 | ||
3336 | memset(&template, 0, sizeof(template)); | |
3337 | template.reg = SND_SOC_NOPM; | |
3338 | template.id = snd_soc_dapm_dai_link; | |
3339 | template.name = link_name; | |
3340 | template.event = snd_soc_dai_link_event; | |
3341 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3342 | SND_SOC_DAPM_PRE_PMD; | |
3343 | ||
30a6a1a4 | 3344 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3345 | |
3346 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3347 | if (!w) { | |
30a6a1a4 | 3348 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3349 | link_name); |
3350 | return -ENOMEM; | |
3351 | } | |
3352 | ||
3353 | w->params = params; | |
3354 | ||
3355 | memset(&routes, 0, sizeof(routes)); | |
3356 | ||
3357 | routes[0].source = source->name; | |
3358 | routes[0].sink = link_name; | |
3359 | routes[1].source = link_name; | |
3360 | routes[1].sink = sink->name; | |
3361 | ||
3362 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3363 | ARRAY_SIZE(routes)); | |
3364 | } | |
3365 | ||
888df395 MB |
3366 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3367 | struct snd_soc_dai *dai) | |
2b97eabc | 3368 | { |
888df395 | 3369 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3370 | struct snd_soc_dapm_widget *w; |
3371 | ||
888df395 MB |
3372 | WARN_ON(dapm->dev != dai->dev); |
3373 | ||
3374 | memset(&template, 0, sizeof(template)); | |
3375 | template.reg = SND_SOC_NOPM; | |
3376 | ||
3377 | if (dai->driver->playback.stream_name) { | |
3378 | template.id = snd_soc_dapm_dai; | |
3379 | template.name = dai->driver->playback.stream_name; | |
3380 | template.sname = dai->driver->playback.stream_name; | |
3381 | ||
30a6a1a4 | 3382 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3383 | template.name); |
3384 | ||
3385 | w = snd_soc_dapm_new_control(dapm, &template); | |
3386 | if (!w) { | |
30a6a1a4 | 3387 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3388 | dai->driver->playback.stream_name); |
3389 | } | |
3390 | ||
3391 | w->priv = dai; | |
3392 | dai->playback_widget = w; | |
3393 | } | |
3394 | ||
3395 | if (dai->driver->capture.stream_name) { | |
3396 | template.id = snd_soc_dapm_dai; | |
3397 | template.name = dai->driver->capture.stream_name; | |
3398 | template.sname = dai->driver->capture.stream_name; | |
3399 | ||
30a6a1a4 | 3400 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3401 | template.name); |
3402 | ||
3403 | w = snd_soc_dapm_new_control(dapm, &template); | |
3404 | if (!w) { | |
30a6a1a4 | 3405 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3406 | dai->driver->capture.stream_name); |
3407 | } | |
3408 | ||
3409 | w->priv = dai; | |
3410 | dai->capture_widget = w; | |
3411 | } | |
3412 | ||
3413 | return 0; | |
3414 | } | |
3415 | ||
3416 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3417 | { | |
3418 | struct snd_soc_dapm_widget *dai_w, *w; | |
3419 | struct snd_soc_dai *dai; | |
3420 | struct snd_soc_dapm_route r; | |
3421 | ||
3422 | memset(&r, 0, sizeof(r)); | |
3423 | ||
3424 | /* For each DAI widget... */ | |
3425 | list_for_each_entry(dai_w, &card->widgets, list) { | |
3426 | if (dai_w->id != snd_soc_dapm_dai) | |
2b97eabc | 3427 | continue; |
888df395 MB |
3428 | |
3429 | dai = dai_w->priv; | |
3430 | ||
3431 | /* ...find all widgets with the same stream and link them */ | |
3432 | list_for_each_entry(w, &card->widgets, list) { | |
3433 | if (w->dapm != dai_w->dapm) | |
3434 | continue; | |
3435 | ||
3436 | if (w->id == snd_soc_dapm_dai) | |
3437 | continue; | |
3438 | ||
3439 | if (!w->sname) | |
3440 | continue; | |
3441 | ||
3442 | if (dai->driver->playback.stream_name && | |
3443 | strstr(w->sname, | |
3444 | dai->driver->playback.stream_name)) { | |
3445 | r.source = dai->playback_widget->name; | |
3446 | r.sink = w->name; | |
3447 | dev_dbg(dai->dev, "%s -> %s\n", | |
3448 | r.source, r.sink); | |
3449 | ||
3450 | snd_soc_dapm_add_route(w->dapm, &r); | |
3451 | } | |
3452 | ||
3453 | if (dai->driver->capture.stream_name && | |
3454 | strstr(w->sname, | |
3455 | dai->driver->capture.stream_name)) { | |
3456 | r.source = w->name; | |
3457 | r.sink = dai->capture_widget->name; | |
3458 | dev_dbg(dai->dev, "%s -> %s\n", | |
3459 | r.source, r.sink); | |
3460 | ||
3461 | snd_soc_dapm_add_route(w->dapm, &r); | |
2b97eabc RP |
3462 | } |
3463 | } | |
3464 | } | |
2b97eabc | 3465 | |
888df395 MB |
3466 | return 0; |
3467 | } | |
64a648c2 | 3468 | |
d9b0951b LG |
3469 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3470 | int event) | |
2b97eabc | 3471 | { |
7bd3a6f3 | 3472 | |
d9b0951b LG |
3473 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3474 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3475 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3476 | |
d9b0951b LG |
3477 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3478 | w_cpu = cpu_dai->playback_widget; | |
3479 | w_codec = codec_dai->playback_widget; | |
3480 | } else { | |
3481 | w_cpu = cpu_dai->capture_widget; | |
3482 | w_codec = codec_dai->capture_widget; | |
3483 | } | |
2b97eabc | 3484 | |
d9b0951b | 3485 | if (w_cpu) { |
fe360685 | 3486 | |
d9b0951b LG |
3487 | dapm_mark_dirty(w_cpu, "stream event"); |
3488 | ||
3489 | switch (event) { | |
3490 | case SND_SOC_DAPM_STREAM_START: | |
3491 | w_cpu->active = 1; | |
3492 | break; | |
3493 | case SND_SOC_DAPM_STREAM_STOP: | |
3494 | w_cpu->active = 0; | |
3495 | break; | |
3496 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3497 | case SND_SOC_DAPM_STREAM_RESUME: | |
3498 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3499 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3500 | break; | |
3501 | } | |
3502 | } | |
3503 | ||
3504 | if (w_codec) { | |
3505 | ||
3506 | dapm_mark_dirty(w_codec, "stream event"); | |
3507 | ||
3508 | switch (event) { | |
3509 | case SND_SOC_DAPM_STREAM_START: | |
3510 | w_codec->active = 1; | |
3511 | break; | |
3512 | case SND_SOC_DAPM_STREAM_STOP: | |
3513 | w_codec->active = 0; | |
3514 | break; | |
3515 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3516 | case SND_SOC_DAPM_STREAM_RESUME: | |
3517 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3518 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3519 | break; | |
3520 | } | |
2b97eabc | 3521 | } |
2b97eabc | 3522 | |
d9b0951b | 3523 | dapm_power_widgets(&rtd->card->dapm, event); |
ce6120cc LG |
3524 | } |
3525 | ||
3526 | /** | |
3527 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3528 | * @rtd: PCM runtime data | |
3529 | * @stream: stream name | |
3530 | * @event: stream event | |
3531 | * | |
3532 | * Sends a stream event to the dapm core. The core then makes any | |
3533 | * necessary widget power changes. | |
3534 | * | |
3535 | * Returns 0 for success else error. | |
3536 | */ | |
d9b0951b LG |
3537 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3538 | int event) | |
ce6120cc | 3539 | { |
a73fb2df | 3540 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3541 | |
3cd04343 | 3542 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3543 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3544 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3545 | } |
2b97eabc RP |
3546 | |
3547 | /** | |
a5302181 | 3548 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3549 | * @dapm: DAPM context |
a5302181 | 3550 | * @pin: pin name |
2b97eabc | 3551 | * |
74b8f955 | 3552 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3553 | * a valid audio route and active audio stream. |
3554 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3555 | * do any widget power switching. | |
2b97eabc | 3556 | */ |
ce6120cc | 3557 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3558 | { |
ce6120cc | 3559 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3560 | } |
3561 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3562 | |
da34183e MB |
3563 | /** |
3564 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3565 | * @dapm: DAPM context |
da34183e MB |
3566 | * @pin: pin name |
3567 | * | |
3568 | * Enables input/output pin regardless of any other state. This is | |
3569 | * intended for use with microphone bias supplies used in microphone | |
3570 | * jack detection. | |
3571 | * | |
3572 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3573 | * do any widget power switching. | |
3574 | */ | |
ce6120cc LG |
3575 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3576 | const char *pin) | |
da34183e | 3577 | { |
91a5fca4 | 3578 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3579 | |
91a5fca4 | 3580 | if (!w) { |
30a6a1a4 | 3581 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3582 | return -EINVAL; |
0d86733c MB |
3583 | } |
3584 | ||
30a6a1a4 | 3585 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3586 | w->connected = 1; |
3587 | w->force = 1; | |
75c1f891 | 3588 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3589 | |
91a5fca4 | 3590 | return 0; |
da34183e MB |
3591 | } |
3592 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3593 | ||
a5302181 LG |
3594 | /** |
3595 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3596 | * @dapm: DAPM context |
a5302181 LG |
3597 | * @pin: pin name |
3598 | * | |
74b8f955 | 3599 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3600 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3601 | * do any widget power switching. | |
3602 | */ | |
ce6120cc LG |
3603 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3604 | const char *pin) | |
a5302181 | 3605 | { |
ce6120cc | 3606 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3607 | } |
a5302181 | 3608 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3609 | |
5817b52a MB |
3610 | /** |
3611 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3612 | * @dapm: DAPM context |
5817b52a MB |
3613 | * @pin: pin name |
3614 | * | |
3615 | * Marks the specified pin as being not connected, disabling it along | |
3616 | * any parent or child widgets. At present this is identical to | |
3617 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3618 | * additional things such as disabling controls which only affect | |
3619 | * paths through the pin. | |
3620 | * | |
3621 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3622 | * do any widget power switching. | |
3623 | */ | |
ce6120cc | 3624 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3625 | { |
ce6120cc | 3626 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3627 | } |
3628 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3629 | ||
eeec12bf | 3630 | /** |
a5302181 | 3631 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3632 | * @dapm: DAPM context |
a5302181 | 3633 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3634 | * |
a5302181 | 3635 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3636 | * |
a5302181 | 3637 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3638 | */ |
ce6120cc LG |
3639 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3640 | const char *pin) | |
eeec12bf | 3641 | { |
91a5fca4 | 3642 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3643 | |
91a5fca4 LPC |
3644 | if (w) |
3645 | return w->connected; | |
a68b38ad | 3646 | |
eeec12bf GG |
3647 | return 0; |
3648 | } | |
a5302181 | 3649 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3650 | |
1547aba9 MB |
3651 | /** |
3652 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3653 | * @dapm: DAPM context |
1547aba9 MB |
3654 | * @pin: audio signal pin endpoint (or start point) |
3655 | * | |
3656 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3657 | * system is disabled a path between two endpoints flagged as ignoring | |
3658 | * suspend will not be disabled. The path must already be enabled via | |
3659 | * normal means at suspend time, it will not be turned on if it was not | |
3660 | * already enabled. | |
3661 | */ | |
ce6120cc LG |
3662 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3663 | const char *pin) | |
1547aba9 | 3664 | { |
91a5fca4 | 3665 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3666 | |
91a5fca4 | 3667 | if (!w) { |
30a6a1a4 | 3668 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3669 | return -EINVAL; |
1547aba9 MB |
3670 | } |
3671 | ||
91a5fca4 LPC |
3672 | w->ignore_suspend = 1; |
3673 | ||
3674 | return 0; | |
1547aba9 MB |
3675 | } |
3676 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3677 | ||
1633281b SW |
3678 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3679 | struct snd_soc_dapm_widget *w) | |
3680 | { | |
3681 | struct snd_soc_dapm_path *p; | |
3682 | ||
3683 | list_for_each_entry(p, &card->paths, list) { | |
3684 | if ((p->source == w) || (p->sink == w)) { | |
3685 | dev_dbg(card->dev, | |
3686 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3687 | p->source->name, p->source->id, p->source->dapm, | |
3688 | p->sink->name, p->sink->id, p->sink->dapm); | |
3689 | ||
3690 | /* Connected to something other than the codec */ | |
3691 | if (p->source->dapm != p->sink->dapm) | |
3692 | return true; | |
3693 | /* | |
3694 | * Loopback connection from codec external pin to | |
3695 | * codec external pin | |
3696 | */ | |
3697 | if (p->sink->id == snd_soc_dapm_input) { | |
3698 | switch (p->source->id) { | |
3699 | case snd_soc_dapm_output: | |
3700 | case snd_soc_dapm_micbias: | |
3701 | return true; | |
3702 | default: | |
3703 | break; | |
3704 | } | |
3705 | } | |
3706 | } | |
3707 | } | |
3708 | ||
3709 | return false; | |
3710 | } | |
3711 | ||
3712 | /** | |
3713 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3714 | * @codec: The codec whose pins should be processed | |
3715 | * | |
3716 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3717 | * which are unused. Pins are used if they are connected externally to the | |
3718 | * codec, whether that be to some other device, or a loop-back connection to | |
3719 | * the codec itself. | |
3720 | */ | |
3721 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3722 | { | |
3723 | struct snd_soc_card *card = codec->card; | |
3724 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3725 | struct snd_soc_dapm_widget *w; | |
3726 | ||
30a6a1a4 | 3727 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3728 | &card->dapm, &codec->dapm); |
3729 | ||
3730 | list_for_each_entry(w, &card->widgets, list) { | |
3731 | if (w->dapm != dapm) | |
3732 | continue; | |
3733 | switch (w->id) { | |
3734 | case snd_soc_dapm_input: | |
3735 | case snd_soc_dapm_output: | |
3736 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3737 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3738 | w->name); |
3739 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3740 | dev_dbg(codec->dev, |
1633281b SW |
3741 | "... Not in map; disabling\n"); |
3742 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3743 | } | |
3744 | break; | |
3745 | default: | |
3746 | break; | |
3747 | } | |
3748 | } | |
3749 | } | |
3750 | ||
2b97eabc RP |
3751 | /** |
3752 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3753 | * @dapm: DAPM context |
2b97eabc RP |
3754 | * |
3755 | * Free all dapm widgets and resources. | |
3756 | */ | |
ce6120cc | 3757 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3758 | { |
ce6120cc | 3759 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3760 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3761 | dapm_free_widgets(dapm); |
7be31be8 | 3762 | list_del(&dapm->list); |
2b97eabc RP |
3763 | } |
3764 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3765 | ||
ce6120cc | 3766 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3767 | { |
01005a72 | 3768 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3769 | struct snd_soc_dapm_widget *w; |
3770 | LIST_HEAD(down_list); | |
3771 | int powerdown = 0; | |
3772 | ||
01005a72 LG |
3773 | mutex_lock(&card->dapm_mutex); |
3774 | ||
97c866de JN |
3775 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3776 | if (w->dapm != dapm) | |
3777 | continue; | |
51737470 | 3778 | if (w->power) { |
828a842f | 3779 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3780 | w->power = 0; |
51737470 MB |
3781 | powerdown = 1; |
3782 | } | |
3783 | } | |
3784 | ||
3785 | /* If there were no widgets to power down we're already in | |
3786 | * standby. | |
3787 | */ | |
3788 | if (powerdown) { | |
7679e42e MB |
3789 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3790 | snd_soc_dapm_set_bias_level(dapm, | |
3791 | SND_SOC_BIAS_PREPARE); | |
828a842f | 3792 | dapm_seq_run(dapm, &down_list, 0, false); |
7679e42e MB |
3793 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3794 | snd_soc_dapm_set_bias_level(dapm, | |
3795 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3796 | } |
01005a72 LG |
3797 | |
3798 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3799 | } |
3800 | ||
3801 | /* | |
3802 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3803 | */ | |
3804 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3805 | { | |
3806 | struct snd_soc_codec *codec; | |
3807 | ||
445632ad | 3808 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3809 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3810 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3811 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3812 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3813 | } |
51737470 MB |
3814 | } |
3815 | ||
2b97eabc | 3816 | /* Module information */ |
d331124d | 3817 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3818 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3819 | MODULE_LICENSE("GPL"); |