Commit | Line | Data |
---|---|---|
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, |
4616274d MB |
58 | [snd_soc_dapm_dai_in] = 3, |
59 | [snd_soc_dapm_dai_out] = 3, | |
010ff262 MB |
60 | [snd_soc_dapm_aif_in] = 3, |
61 | [snd_soc_dapm_aif_out] = 3, | |
62 | [snd_soc_dapm_mic] = 4, | |
63 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 64 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
65 | [snd_soc_dapm_value_mux] = 5, |
66 | [snd_soc_dapm_dac] = 6, | |
efc77e36 | 67 | [snd_soc_dapm_switch] = 7, |
010ff262 MB |
68 | [snd_soc_dapm_mixer] = 7, |
69 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
70 | [snd_soc_dapm_pga] = 8, | |
71 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 72 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
73 | [snd_soc_dapm_hp] = 10, |
74 | [snd_soc_dapm_spk] = 10, | |
7e1f7c8a | 75 | [snd_soc_dapm_line] = 10, |
010ff262 | 76 | [snd_soc_dapm_post] = 11, |
2b97eabc | 77 | }; |
ca9c1aae | 78 | |
2b97eabc | 79 | static int dapm_down_seq[] = { |
38357ab2 MB |
80 | [snd_soc_dapm_pre] = 0, |
81 | [snd_soc_dapm_adc] = 1, | |
82 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 83 | [snd_soc_dapm_spk] = 2, |
7e1f7c8a | 84 | [snd_soc_dapm_line] = 2, |
d88429a6 | 85 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 | 86 | [snd_soc_dapm_pga] = 4, |
efc77e36 | 87 | [snd_soc_dapm_switch] = 5, |
38357ab2 | 88 | [snd_soc_dapm_mixer_named_ctl] = 5, |
e3d4dabd MB |
89 | [snd_soc_dapm_mixer] = 5, |
90 | [snd_soc_dapm_dac] = 6, | |
91 | [snd_soc_dapm_mic] = 7, | |
92 | [snd_soc_dapm_micbias] = 8, | |
93 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 94 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 95 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
96 | [snd_soc_dapm_aif_in] = 10, |
97 | [snd_soc_dapm_aif_out] = 10, | |
4616274d MB |
98 | [snd_soc_dapm_dai_in] = 10, |
99 | [snd_soc_dapm_dai_out] = 10, | |
c74184ed | 100 | [snd_soc_dapm_dai_link] = 11, |
d7e7eb91 | 101 | [snd_soc_dapm_clock_supply] = 12, |
c74184ed MB |
102 | [snd_soc_dapm_regulator_supply] = 12, |
103 | [snd_soc_dapm_supply] = 12, | |
104 | [snd_soc_dapm_post] = 13, | |
2b97eabc RP |
105 | }; |
106 | ||
12ef193d | 107 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
108 | { |
109 | if (pop_time) | |
110 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
111 | } | |
112 | ||
fd8d3bc0 | 113 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
114 | { |
115 | va_list args; | |
fd8d3bc0 | 116 | char *buf; |
15e4c72f | 117 | |
fd8d3bc0 JN |
118 | if (!pop_time) |
119 | return; | |
15e4c72f | 120 | |
fd8d3bc0 JN |
121 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
122 | if (buf == NULL) | |
123 | return; | |
15e4c72f | 124 | |
fd8d3bc0 JN |
125 | va_start(args, fmt); |
126 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 127 | dev_info(dev, "%s", buf); |
15e4c72f | 128 | va_end(args); |
fd8d3bc0 JN |
129 | |
130 | kfree(buf); | |
15e4c72f MB |
131 | } |
132 | ||
db432b41 MB |
133 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
134 | { | |
135 | return !list_empty(&w->dirty); | |
136 | } | |
137 | ||
25c77c5f | 138 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 139 | { |
75c1f891 MB |
140 | if (!dapm_dirty_widget(w)) { |
141 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
142 | w->name, reason); | |
db432b41 | 143 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 144 | } |
db432b41 | 145 | } |
25c77c5f | 146 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 147 | |
e2d32ff6 MB |
148 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
149 | { | |
150 | struct snd_soc_card *card = dapm->card; | |
151 | struct snd_soc_dapm_widget *w; | |
152 | ||
153 | mutex_lock(&card->dapm_mutex); | |
154 | ||
155 | list_for_each_entry(w, &card->widgets, list) { | |
156 | switch (w->id) { | |
157 | case snd_soc_dapm_input: | |
158 | case snd_soc_dapm_output: | |
159 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
160 | break; | |
161 | default: | |
162 | break; | |
163 | } | |
164 | } | |
165 | ||
166 | mutex_unlock(&card->dapm_mutex); | |
167 | } | |
168 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
169 | ||
2b97eabc | 170 | /* create a new dapm widget */ |
88cb4290 | 171 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
172 | const struct snd_soc_dapm_widget *_widget) |
173 | { | |
88cb4290 | 174 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
175 | } |
176 | ||
4805608a LG |
177 | /* get snd_card from DAPM context */ |
178 | static inline struct snd_card *dapm_get_snd_card( | |
179 | struct snd_soc_dapm_context *dapm) | |
180 | { | |
181 | if (dapm->codec) | |
182 | return dapm->codec->card->snd_card; | |
183 | else if (dapm->platform) | |
184 | return dapm->platform->card->snd_card; | |
185 | else | |
186 | BUG(); | |
187 | ||
188 | /* unreachable */ | |
189 | return NULL; | |
190 | } | |
191 | ||
192 | /* get soc_card from DAPM context */ | |
193 | static inline struct snd_soc_card *dapm_get_soc_card( | |
194 | struct snd_soc_dapm_context *dapm) | |
195 | { | |
196 | if (dapm->codec) | |
197 | return dapm->codec->card; | |
198 | else if (dapm->platform) | |
199 | return dapm->platform->card; | |
200 | else | |
201 | BUG(); | |
202 | ||
203 | /* unreachable */ | |
204 | return NULL; | |
205 | } | |
206 | ||
6c120e19 LG |
207 | static void dapm_reset(struct snd_soc_card *card) |
208 | { | |
209 | struct snd_soc_dapm_widget *w; | |
210 | ||
211 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
212 | ||
213 | list_for_each_entry(w, &card->widgets, list) { | |
214 | w->power_checked = false; | |
215 | w->inputs = -1; | |
216 | w->outputs = -1; | |
217 | } | |
218 | } | |
219 | ||
0445bdf4 LG |
220 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
221 | { | |
222 | if (w->codec) | |
223 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
224 | else if (w->platform) |
225 | return snd_soc_platform_read(w->platform, reg); | |
226 | ||
30a6a1a4 | 227 | dev_err(w->dapm->dev, "ASoC: no valid widget read method\n"); |
b7950641 | 228 | return -1; |
0445bdf4 LG |
229 | } |
230 | ||
231 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
232 | { | |
233 | if (w->codec) | |
234 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
235 | else if (w->platform) |
236 | return snd_soc_platform_write(w->platform, reg, val); | |
237 | ||
30a6a1a4 | 238 | dev_err(w->dapm->dev, "ASoC: no valid widget write method\n"); |
b7950641 | 239 | return -1; |
0445bdf4 LG |
240 | } |
241 | ||
49575fb5 LG |
242 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
243 | { | |
e06ab3b8 | 244 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
245 | mutex_lock(&w->codec->mutex); |
246 | else if (w->platform) | |
247 | mutex_lock(&w->platform->mutex); | |
248 | } | |
249 | ||
250 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
251 | { | |
e06ab3b8 | 252 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
253 | mutex_unlock(&w->codec->mutex); |
254 | else if (w->platform) | |
255 | mutex_unlock(&w->platform->mutex); | |
256 | } | |
257 | ||
258 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, | |
0445bdf4 LG |
259 | unsigned short reg, unsigned int mask, unsigned int value) |
260 | { | |
8a713da8 | 261 | bool change; |
0445bdf4 LG |
262 | unsigned int old, new; |
263 | int ret; | |
264 | ||
8a713da8 MB |
265 | if (w->codec && w->codec->using_regmap) { |
266 | ret = regmap_update_bits_check(w->codec->control_data, | |
267 | reg, mask, value, &change); | |
268 | if (ret != 0) | |
269 | return ret; | |
270 | } else { | |
49575fb5 | 271 | soc_widget_lock(w); |
8a713da8 | 272 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
273 | if (ret < 0) { |
274 | soc_widget_unlock(w); | |
0445bdf4 | 275 | return ret; |
49575fb5 | 276 | } |
8a713da8 MB |
277 | |
278 | old = ret; | |
279 | new = (old & ~mask) | (value & mask); | |
280 | change = old != new; | |
281 | if (change) { | |
282 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
283 | if (ret < 0) { |
284 | soc_widget_unlock(w); | |
8a713da8 | 285 | return ret; |
49575fb5 | 286 | } |
8a713da8 | 287 | } |
49575fb5 | 288 | soc_widget_unlock(w); |
0445bdf4 LG |
289 | } |
290 | ||
291 | return change; | |
292 | } | |
293 | ||
452c5eaa MB |
294 | /** |
295 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 296 | * @dapm: DAPM context |
452c5eaa MB |
297 | * @level: level to configure |
298 | * | |
299 | * Configure the bias (power) levels for the SoC audio device. | |
300 | * | |
301 | * Returns 0 for success else error. | |
302 | */ | |
ed5a4c47 | 303 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 304 | enum snd_soc_bias_level level) |
452c5eaa | 305 | { |
ed5a4c47 | 306 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
307 | int ret = 0; |
308 | ||
84e90930 MB |
309 | trace_snd_soc_bias_level_start(card, level); |
310 | ||
f0fba2ad | 311 | if (card && card->set_bias_level) |
d4c6005f | 312 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
313 | if (ret != 0) |
314 | goto out; | |
315 | ||
cc4c670a MB |
316 | if (dapm->codec) { |
317 | if (dapm->codec->driver->set_bias_level) | |
318 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
319 | level); | |
d8c3bb91 MB |
320 | else |
321 | dapm->bias_level = level; | |
4e872a46 | 322 | } else if (!card || dapm != &card->dapm) { |
4123128e | 323 | dapm->bias_level = level; |
4e872a46 | 324 | } |
4123128e | 325 | |
171ec6b0 MB |
326 | if (ret != 0) |
327 | goto out; | |
328 | ||
329 | if (card && card->set_bias_level_post) | |
d4c6005f | 330 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 331 | out: |
84e90930 MB |
332 | trace_snd_soc_bias_level_done(card, level); |
333 | ||
452c5eaa MB |
334 | return ret; |
335 | } | |
336 | ||
2b97eabc RP |
337 | /* set up initial codec paths */ |
338 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
339 | struct snd_soc_dapm_path *p, int i) | |
340 | { | |
341 | switch (w->id) { | |
342 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
343 | case snd_soc_dapm_mixer: |
344 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 345 | int val; |
4eaa9819 | 346 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 347 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
348 | unsigned int reg = mc->reg; |
349 | unsigned int shift = mc->shift; | |
4eaa9819 | 350 | int max = mc->max; |
815ecf8d JS |
351 | unsigned int mask = (1 << fls(max)) - 1; |
352 | unsigned int invert = mc->invert; | |
2b97eabc | 353 | |
0445bdf4 | 354 | val = soc_widget_read(w, reg); |
2b97eabc | 355 | val = (val >> shift) & mask; |
32fee7af BT |
356 | if (invert) |
357 | val = max - val; | |
2b97eabc | 358 | |
32fee7af | 359 | p->connect = !!val; |
2b97eabc RP |
360 | } |
361 | break; | |
362 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
363 | struct soc_enum *e = (struct soc_enum *) |
364 | w->kcontrol_news[i].private_value; | |
86767b7d | 365 | int val, item; |
2b97eabc | 366 | |
0445bdf4 | 367 | val = soc_widget_read(w, e->reg); |
86767b7d | 368 | item = (val >> e->shift_l) & e->mask; |
2b97eabc | 369 | |
58fee775 LPC |
370 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
371 | p->connect = 1; | |
372 | else | |
373 | p->connect = 0; | |
2b97eabc RP |
374 | } |
375 | break; | |
24ff33ac | 376 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
377 | struct soc_enum *e = (struct soc_enum *) |
378 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
379 | |
380 | p->connect = 0; | |
381 | /* since a virtual mux has no backing registers to | |
382 | * decide which path to connect, it will try to match | |
383 | * with the first enumeration. This is to ensure | |
384 | * that the default mux choice (the first) will be | |
385 | * correctly powered up during initialization. | |
386 | */ | |
387 | if (!strcmp(p->name, e->texts[0])) | |
388 | p->connect = 1; | |
389 | } | |
390 | break; | |
2e72f8e3 | 391 | case snd_soc_dapm_value_mux: { |
74155556 | 392 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 393 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
394 | int val, item; |
395 | ||
0445bdf4 | 396 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
397 | val = (val >> e->shift_l) & e->mask; |
398 | for (item = 0; item < e->max; item++) { | |
399 | if (val == e->values[item]) | |
400 | break; | |
401 | } | |
402 | ||
58fee775 LPC |
403 | if (item < e->max && !strcmp(p->name, e->texts[item])) |
404 | p->connect = 1; | |
405 | else | |
406 | p->connect = 0; | |
2e72f8e3 PU |
407 | } |
408 | break; | |
56563100 | 409 | /* does not affect routing - always connected */ |
2b97eabc | 410 | case snd_soc_dapm_pga: |
d88429a6 | 411 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
412 | case snd_soc_dapm_output: |
413 | case snd_soc_dapm_adc: | |
414 | case snd_soc_dapm_input: | |
1ab97c8c | 415 | case snd_soc_dapm_siggen: |
2b97eabc RP |
416 | case snd_soc_dapm_dac: |
417 | case snd_soc_dapm_micbias: | |
418 | case snd_soc_dapm_vmid: | |
246d0a17 | 419 | case snd_soc_dapm_supply: |
62ea874a | 420 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 421 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
422 | case snd_soc_dapm_aif_in: |
423 | case snd_soc_dapm_aif_out: | |
4616274d MB |
424 | case snd_soc_dapm_dai_in: |
425 | case snd_soc_dapm_dai_out: | |
2b97eabc RP |
426 | case snd_soc_dapm_hp: |
427 | case snd_soc_dapm_mic: | |
428 | case snd_soc_dapm_spk: | |
429 | case snd_soc_dapm_line: | |
c74184ed | 430 | case snd_soc_dapm_dai_link: |
56563100 MB |
431 | p->connect = 1; |
432 | break; | |
433 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
434 | case snd_soc_dapm_pre: |
435 | case snd_soc_dapm_post: | |
436 | p->connect = 0; | |
437 | break; | |
438 | } | |
439 | } | |
440 | ||
74b8f955 | 441 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 442 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
443 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
444 | struct snd_soc_dapm_path *path, const char *control_name, | |
445 | const struct snd_kcontrol_new *kcontrol) | |
446 | { | |
447 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
448 | int i; | |
449 | ||
f8ba0b7b | 450 | for (i = 0; i < e->max; i++) { |
2b97eabc | 451 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 452 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
453 | list_add(&path->list_sink, &dest->sources); |
454 | list_add(&path->list_source, &src->sinks); | |
455 | path->name = (char*)e->texts[i]; | |
456 | dapm_set_path_status(dest, path, 0); | |
457 | return 0; | |
458 | } | |
459 | } | |
460 | ||
461 | return -ENODEV; | |
462 | } | |
463 | ||
74b8f955 | 464 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 465 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
466 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
467 | struct snd_soc_dapm_path *path, const char *control_name) | |
468 | { | |
469 | int i; | |
470 | ||
471 | /* search for mixer kcontrol */ | |
472 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 473 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 474 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
475 | list_add(&path->list_sink, &dest->sources); |
476 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 477 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
478 | dapm_set_path_status(dest, path, i); |
479 | return 0; | |
480 | } | |
481 | } | |
482 | return -ENODEV; | |
483 | } | |
484 | ||
af46800b | 485 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 486 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
487 | const struct snd_kcontrol_new *kcontrol_new, |
488 | struct snd_kcontrol **kcontrol) | |
489 | { | |
490 | struct snd_soc_dapm_widget *w; | |
491 | int i; | |
492 | ||
493 | *kcontrol = NULL; | |
494 | ||
495 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
496 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
497 | continue; | |
af46800b SW |
498 | for (i = 0; i < w->num_kcontrols; i++) { |
499 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
500 | if (w->kcontrols) | |
501 | *kcontrol = w->kcontrols[i]; | |
502 | return 1; | |
503 | } | |
504 | } | |
505 | } | |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
6b75bf0c LPC |
510 | static void dapm_kcontrol_free(struct snd_kcontrol *kctl) |
511 | { | |
512 | kfree(kctl->private_data); | |
513 | } | |
514 | ||
85762e71 SW |
515 | /* |
516 | * Determine if a kcontrol is shared. If it is, look it up. If it isn't, | |
517 | * create it. Either way, add the widget into the control's widget list | |
518 | */ | |
519 | static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, | |
520 | int kci, struct snd_soc_dapm_path *path) | |
2b97eabc | 521 | { |
4b80b8c2 | 522 | struct snd_soc_dapm_context *dapm = w->dapm; |
12ea2c78 | 523 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 524 | const char *prefix; |
85762e71 SW |
525 | size_t prefix_len; |
526 | int shared; | |
527 | struct snd_kcontrol *kcontrol; | |
fafd2176 | 528 | struct snd_soc_dapm_widget_list *wlist; |
85762e71 | 529 | int wlistentries; |
fafd2176 | 530 | size_t wlistsize; |
85762e71 | 531 | bool wname_in_long_name, kcname_in_long_name; |
85762e71 SW |
532 | char *long_name; |
533 | const char *name; | |
534 | int ret; | |
efb7ac3f MB |
535 | |
536 | if (dapm->codec) | |
537 | prefix = dapm->codec->name_prefix; | |
538 | else | |
539 | prefix = NULL; | |
2b97eabc | 540 | |
3e5ff4df MB |
541 | if (prefix) |
542 | prefix_len = strlen(prefix) + 1; | |
543 | else | |
544 | prefix_len = 0; | |
545 | ||
85762e71 SW |
546 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], |
547 | &kcontrol); | |
2b97eabc | 548 | |
85762e71 SW |
549 | if (kcontrol) { |
550 | wlist = kcontrol->private_data; | |
551 | wlistentries = wlist->num_widgets + 1; | |
552 | } else { | |
553 | wlist = NULL; | |
554 | wlistentries = 1; | |
555 | } | |
2b97eabc | 556 | |
85762e71 SW |
557 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
558 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
559 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
560 | if (wlist == NULL) { | |
561 | dev_err(dapm->dev, "ASoC: can't allocate widget list for %s\n", | |
562 | w->name); | |
563 | return -ENOMEM; | |
564 | } | |
565 | wlist->num_widgets = wlistentries; | |
566 | wlist->widgets[wlistentries - 1] = w; | |
2b97eabc | 567 | |
85762e71 SW |
568 | if (!kcontrol) { |
569 | if (shared) { | |
570 | wname_in_long_name = false; | |
571 | kcname_in_long_name = true; | |
572 | } else { | |
573 | switch (w->id) { | |
574 | case snd_soc_dapm_switch: | |
575 | case snd_soc_dapm_mixer: | |
576 | wname_in_long_name = true; | |
577 | kcname_in_long_name = true; | |
578 | break; | |
579 | case snd_soc_dapm_mixer_named_ctl: | |
580 | wname_in_long_name = false; | |
581 | kcname_in_long_name = true; | |
582 | break; | |
583 | case snd_soc_dapm_mux: | |
584 | case snd_soc_dapm_virt_mux: | |
585 | case snd_soc_dapm_value_mux: | |
586 | wname_in_long_name = true; | |
587 | kcname_in_long_name = false; | |
588 | break; | |
589 | default: | |
590 | kfree(wlist); | |
591 | return -EINVAL; | |
82cd8764 | 592 | } |
85762e71 SW |
593 | } |
594 | ||
595 | if (wname_in_long_name && kcname_in_long_name) { | |
85762e71 SW |
596 | /* |
597 | * The control will get a prefix from the control | |
598 | * creation process but we're also using the same | |
599 | * prefix for widgets so cut the prefix off the | |
600 | * front of the widget name. | |
ca9c1aae | 601 | */ |
2b581074 | 602 | long_name = kasprintf(GFP_KERNEL, "%s %s", |
85762e71 SW |
603 | w->name + prefix_len, |
604 | w->kcontrol_news[kci].name); | |
2b581074 LPC |
605 | if (long_name == NULL) { |
606 | kfree(wlist); | |
607 | return -ENOMEM; | |
608 | } | |
85762e71 SW |
609 | |
610 | name = long_name; | |
611 | } else if (wname_in_long_name) { | |
612 | long_name = NULL; | |
613 | name = w->name + prefix_len; | |
614 | } else { | |
615 | long_name = NULL; | |
616 | name = w->kcontrol_news[kci].name; | |
617 | } | |
ca9c1aae | 618 | |
85762e71 SW |
619 | kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], wlist, name, |
620 | prefix); | |
6b75bf0c | 621 | kcontrol->private_free = dapm_kcontrol_free; |
656ca9d3 | 622 | kfree(long_name); |
85762e71 SW |
623 | ret = snd_ctl_add(card, kcontrol); |
624 | if (ret < 0) { | |
625 | dev_err(dapm->dev, | |
626 | "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", | |
627 | w->name, name, ret); | |
628 | kfree(wlist); | |
85762e71 SW |
629 | return ret; |
630 | } | |
85762e71 | 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 | ||
fe581391 | 682 | if (list_empty(&w->sources)) { |
85762e71 SW |
683 | dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); |
684 | return -EINVAL; | |
af46800b | 685 | } |
ce6120cc | 686 | |
fe581391 LPC |
687 | path = list_first_entry(&w->sources, struct snd_soc_dapm_path, |
688 | list_sink); | |
689 | ||
85762e71 SW |
690 | ret = dapm_create_or_share_mixmux_kcontrol(w, 0, path); |
691 | if (ret < 0) | |
692 | return ret; | |
fad59888 | 693 | |
2b97eabc | 694 | list_for_each_entry(path, &w->sources, list_sink) |
85762e71 | 695 | path->kcontrol = w->kcontrols[0]; |
2b97eabc | 696 | |
af46800b | 697 | return 0; |
2b97eabc RP |
698 | } |
699 | ||
700 | /* create new dapm volume control */ | |
4b80b8c2 | 701 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 702 | { |
a6c65736 | 703 | if (w->num_kcontrols) |
f7d41ae8 | 704 | dev_err(w->dapm->dev, |
30a6a1a4 | 705 | "ASoC: PGA controls not supported: '%s'\n", w->name); |
2b97eabc | 706 | |
a6c65736 | 707 | return 0; |
2b97eabc RP |
708 | } |
709 | ||
710 | /* reset 'walked' bit for each dapm path */ | |
1059ecfa RT |
711 | static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, |
712 | struct list_head *sink) | |
2b97eabc RP |
713 | { |
714 | struct snd_soc_dapm_path *p; | |
715 | ||
1059ecfa RT |
716 | list_for_each_entry(p, sink, list_source) { |
717 | if (p->walked) { | |
718 | p->walked = 0; | |
719 | dapm_clear_walk_output(dapm, &p->sink->sinks); | |
720 | } | |
721 | } | |
2b97eabc RP |
722 | } |
723 | ||
1059ecfa RT |
724 | static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, |
725 | struct list_head *source) | |
2b97eabc RP |
726 | { |
727 | struct snd_soc_dapm_path *p; | |
728 | ||
1059ecfa RT |
729 | list_for_each_entry(p, source, list_sink) { |
730 | if (p->walked) { | |
731 | p->walked = 0; | |
732 | dapm_clear_walk_input(dapm, &p->source->sources); | |
733 | } | |
734 | } | |
2b97eabc RP |
735 | } |
736 | ||
1059ecfa | 737 | |
9949788b MB |
738 | /* We implement power down on suspend by checking the power state of |
739 | * the ALSA card - when we are suspending the ALSA state for the card | |
740 | * is set to D3. | |
741 | */ | |
742 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
743 | { | |
12ea2c78 | 744 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 745 | |
f0fba2ad | 746 | switch (level) { |
9949788b MB |
747 | case SNDRV_CTL_POWER_D3hot: |
748 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 749 | if (widget->ignore_suspend) |
30a6a1a4 | 750 | dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", |
f7d41ae8 | 751 | widget->name); |
1547aba9 | 752 | return widget->ignore_suspend; |
9949788b MB |
753 | default: |
754 | return 1; | |
755 | } | |
756 | } | |
757 | ||
ec2e3031 LG |
758 | /* add widget to list if it's not already in the list */ |
759 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
760 | struct snd_soc_dapm_widget *w) | |
761 | { | |
762 | struct snd_soc_dapm_widget_list *wlist; | |
763 | int wlistsize, wlistentries, i; | |
764 | ||
765 | if (*list == NULL) | |
766 | return -EINVAL; | |
767 | ||
768 | wlist = *list; | |
769 | ||
770 | /* is this widget already in the list */ | |
771 | for (i = 0; i < wlist->num_widgets; i++) { | |
772 | if (wlist->widgets[i] == w) | |
773 | return 0; | |
774 | } | |
775 | ||
776 | /* allocate some new space */ | |
777 | wlistentries = wlist->num_widgets + 1; | |
778 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
779 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
780 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
781 | if (*list == NULL) { | |
30a6a1a4 | 782 | dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", |
ec2e3031 LG |
783 | w->name); |
784 | return -ENOMEM; | |
785 | } | |
786 | wlist = *list; | |
787 | ||
788 | /* insert the widget */ | |
30a6a1a4 | 789 | dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", |
ec2e3031 LG |
790 | w->name, wlist->num_widgets); |
791 | ||
792 | wlist->widgets[wlist->num_widgets] = w; | |
793 | wlist->num_widgets++; | |
794 | return 1; | |
795 | } | |
796 | ||
2b97eabc RP |
797 | /* |
798 | * Recursively check for a completed path to an active or physically connected | |
799 | * output widget. Returns number of complete paths. | |
800 | */ | |
ec2e3031 LG |
801 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
802 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
803 | { |
804 | struct snd_soc_dapm_path *path; | |
805 | int con = 0; | |
806 | ||
024dc078 MB |
807 | if (widget->outputs >= 0) |
808 | return widget->outputs; | |
809 | ||
de02d078 MB |
810 | DAPM_UPDATE_STAT(widget, path_checks); |
811 | ||
62ea874a MB |
812 | switch (widget->id) { |
813 | case snd_soc_dapm_supply: | |
814 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 815 | case snd_soc_dapm_clock_supply: |
246d0a17 | 816 | return 0; |
62ea874a MB |
817 | default: |
818 | break; | |
819 | } | |
246d0a17 | 820 | |
010ff262 MB |
821 | switch (widget->id) { |
822 | case snd_soc_dapm_adc: | |
823 | case snd_soc_dapm_aif_out: | |
4616274d | 824 | case snd_soc_dapm_dai_out: |
024dc078 MB |
825 | if (widget->active) { |
826 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
827 | return widget->outputs; | |
828 | } | |
010ff262 MB |
829 | default: |
830 | break; | |
831 | } | |
2b97eabc RP |
832 | |
833 | if (widget->connected) { | |
834 | /* connected pin ? */ | |
024dc078 MB |
835 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
836 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
837 | return widget->outputs; | |
838 | } | |
2b97eabc RP |
839 | |
840 | /* connected jack or spk ? */ | |
024dc078 MB |
841 | if (widget->id == snd_soc_dapm_hp || |
842 | widget->id == snd_soc_dapm_spk || | |
843 | (widget->id == snd_soc_dapm_line && | |
844 | !list_empty(&widget->sources))) { | |
845 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
846 | return widget->outputs; | |
847 | } | |
2b97eabc RP |
848 | } |
849 | ||
850 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
851 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
852 | ||
bf3a9e13 MB |
853 | if (path->weak) |
854 | continue; | |
855 | ||
8af294b4 MB |
856 | if (path->walking) |
857 | return 1; | |
858 | ||
2b97eabc RP |
859 | if (path->walked) |
860 | continue; | |
861 | ||
ec2e3031 LG |
862 | trace_snd_soc_dapm_output_path(widget, path); |
863 | ||
2b97eabc RP |
864 | if (path->sink && path->connect) { |
865 | path->walked = 1; | |
8af294b4 | 866 | path->walking = 1; |
ec2e3031 LG |
867 | |
868 | /* do we need to add this widget to the list ? */ | |
869 | if (list) { | |
870 | int err; | |
871 | err = dapm_list_add_widget(list, path->sink); | |
872 | if (err < 0) { | |
30a6a1a4 LG |
873 | dev_err(widget->dapm->dev, |
874 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 875 | widget->name); |
8af294b4 | 876 | path->walking = 0; |
ec2e3031 LG |
877 | return con; |
878 | } | |
879 | } | |
880 | ||
881 | con += is_connected_output_ep(path->sink, list); | |
8af294b4 MB |
882 | |
883 | path->walking = 0; | |
2b97eabc RP |
884 | } |
885 | } | |
886 | ||
024dc078 MB |
887 | widget->outputs = con; |
888 | ||
2b97eabc RP |
889 | return con; |
890 | } | |
891 | ||
892 | /* | |
893 | * Recursively check for a completed path to an active or physically connected | |
894 | * input widget. Returns number of complete paths. | |
895 | */ | |
ec2e3031 LG |
896 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
897 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
898 | { |
899 | struct snd_soc_dapm_path *path; | |
900 | int con = 0; | |
901 | ||
024dc078 MB |
902 | if (widget->inputs >= 0) |
903 | return widget->inputs; | |
904 | ||
de02d078 MB |
905 | DAPM_UPDATE_STAT(widget, path_checks); |
906 | ||
62ea874a MB |
907 | switch (widget->id) { |
908 | case snd_soc_dapm_supply: | |
909 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 910 | case snd_soc_dapm_clock_supply: |
246d0a17 | 911 | return 0; |
62ea874a MB |
912 | default: |
913 | break; | |
914 | } | |
246d0a17 | 915 | |
2b97eabc | 916 | /* active stream ? */ |
010ff262 MB |
917 | switch (widget->id) { |
918 | case snd_soc_dapm_dac: | |
919 | case snd_soc_dapm_aif_in: | |
4616274d | 920 | case snd_soc_dapm_dai_in: |
024dc078 MB |
921 | if (widget->active) { |
922 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
923 | return widget->inputs; | |
924 | } | |
010ff262 MB |
925 | default: |
926 | break; | |
927 | } | |
2b97eabc RP |
928 | |
929 | if (widget->connected) { | |
930 | /* connected pin ? */ | |
024dc078 MB |
931 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
932 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
933 | return widget->inputs; | |
934 | } | |
2b97eabc RP |
935 | |
936 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
937 | if (widget->id == snd_soc_dapm_vmid) { |
938 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
939 | return widget->inputs; | |
940 | } | |
2b97eabc RP |
941 | |
942 | /* connected jack ? */ | |
eaeae5d9 | 943 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
944 | (widget->id == snd_soc_dapm_line && |
945 | !list_empty(&widget->sinks))) { | |
946 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
947 | return widget->inputs; | |
948 | } | |
949 | ||
1ab97c8c MB |
950 | /* signal generator */ |
951 | if (widget->id == snd_soc_dapm_siggen) { | |
952 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
953 | return widget->inputs; | |
954 | } | |
2b97eabc RP |
955 | } |
956 | ||
957 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
958 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
959 | ||
bf3a9e13 MB |
960 | if (path->weak) |
961 | continue; | |
962 | ||
8af294b4 MB |
963 | if (path->walking) |
964 | return 1; | |
965 | ||
2b97eabc RP |
966 | if (path->walked) |
967 | continue; | |
968 | ||
ec2e3031 LG |
969 | trace_snd_soc_dapm_input_path(widget, path); |
970 | ||
2b97eabc RP |
971 | if (path->source && path->connect) { |
972 | path->walked = 1; | |
8af294b4 | 973 | path->walking = 1; |
ec2e3031 LG |
974 | |
975 | /* do we need to add this widget to the list ? */ | |
976 | if (list) { | |
977 | int err; | |
90c6ce0d | 978 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 | 979 | if (err < 0) { |
30a6a1a4 LG |
980 | dev_err(widget->dapm->dev, |
981 | "ASoC: could not add widget %s\n", | |
ec2e3031 | 982 | widget->name); |
8af294b4 | 983 | path->walking = 0; |
ec2e3031 LG |
984 | return con; |
985 | } | |
986 | } | |
987 | ||
988 | con += is_connected_input_ep(path->source, list); | |
8af294b4 MB |
989 | |
990 | path->walking = 0; | |
2b97eabc RP |
991 | } |
992 | } | |
993 | ||
024dc078 MB |
994 | widget->inputs = con; |
995 | ||
2b97eabc RP |
996 | return con; |
997 | } | |
998 | ||
ec2e3031 LG |
999 | /** |
1000 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
1001 | * @dai: the soc DAI. | |
1002 | * @stream: stream direction. | |
1003 | * @list: list of active widgets for this stream. | |
1004 | * | |
1005 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
1006 | * the initial stream specified by name. This takes into account | |
1007 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
1008 | * | |
1009 | * Returns the number of valid paths or negative error. | |
1010 | */ | |
1011 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
1012 | struct snd_soc_dapm_widget_list **list) | |
1013 | { | |
1014 | struct snd_soc_card *card = dai->card; | |
1015 | int paths; | |
1016 | ||
1017 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
1018 | dapm_reset(card); | |
1019 | ||
1059ecfa | 1020 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
ec2e3031 | 1021 | paths = is_connected_output_ep(dai->playback_widget, list); |
1059ecfa RT |
1022 | dapm_clear_walk_output(&card->dapm, |
1023 | &dai->playback_widget->sinks); | |
1024 | } else { | |
d298caae | 1025 | paths = is_connected_input_ep(dai->capture_widget, list); |
1059ecfa RT |
1026 | dapm_clear_walk_input(&card->dapm, |
1027 | &dai->capture_widget->sources); | |
1028 | } | |
ec2e3031 LG |
1029 | |
1030 | trace_snd_soc_dapm_connected(paths, stream); | |
ec2e3031 LG |
1031 | mutex_unlock(&card->dapm_mutex); |
1032 | ||
1033 | return paths; | |
1034 | } | |
1035 | ||
e2be2ccf JN |
1036 | /* |
1037 | * Handler for generic register modifier widget. | |
1038 | */ | |
1039 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
1040 | struct snd_kcontrol *kcontrol, int event) | |
1041 | { | |
1042 | unsigned int val; | |
1043 | ||
1044 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1045 | val = w->on_val; | |
1046 | else | |
1047 | val = w->off_val; | |
1048 | ||
49575fb5 | 1049 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1050 | w->mask << w->shift, val << w->shift); |
1051 | ||
1052 | return 0; | |
1053 | } | |
11589418 | 1054 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1055 | |
62ea874a MB |
1056 | /* |
1057 | * Handler for regulator supply widget. | |
1058 | */ | |
1059 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1060 | struct snd_kcontrol *kcontrol, int event) | |
1061 | { | |
c05b84d1 MB |
1062 | int ret; |
1063 | ||
1064 | if (SND_SOC_DAPM_EVENT_ON(event)) { | |
1065 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
8784c77a | 1066 | ret = regulator_allow_bypass(w->regulator, false); |
c05b84d1 MB |
1067 | if (ret != 0) |
1068 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1069 | "ASoC: Failed to bypass %s: %d\n", |
c05b84d1 MB |
1070 | w->name, ret); |
1071 | } | |
1072 | ||
a3cc056b | 1073 | return regulator_enable(w->regulator); |
c05b84d1 MB |
1074 | } else { |
1075 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
8784c77a | 1076 | ret = regulator_allow_bypass(w->regulator, true); |
c05b84d1 MB |
1077 | if (ret != 0) |
1078 | dev_warn(w->dapm->dev, | |
30a6a1a4 | 1079 | "ASoC: Failed to unbypass %s: %d\n", |
c05b84d1 MB |
1080 | w->name, ret); |
1081 | } | |
1082 | ||
a3cc056b | 1083 | return regulator_disable_deferred(w->regulator, w->shift); |
c05b84d1 | 1084 | } |
62ea874a MB |
1085 | } |
1086 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1087 | ||
d7e7eb91 OL |
1088 | /* |
1089 | * Handler for clock supply widget. | |
1090 | */ | |
1091 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1092 | struct snd_kcontrol *kcontrol, int event) | |
1093 | { | |
1094 | if (!w->clk) | |
1095 | return -EIO; | |
1096 | ||
ec02995a | 1097 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 | 1098 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
37c1b927 | 1099 | return clk_prepare_enable(w->clk); |
d7e7eb91 | 1100 | } else { |
37c1b927 | 1101 | clk_disable_unprepare(w->clk); |
d7e7eb91 OL |
1102 | return 0; |
1103 | } | |
ec02995a | 1104 | #endif |
98b3cf12 | 1105 | return 0; |
d7e7eb91 OL |
1106 | } |
1107 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1108 | ||
d805002b MB |
1109 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1110 | { | |
9b8a83b2 MB |
1111 | if (w->power_checked) |
1112 | return w->new_power; | |
1113 | ||
d805002b | 1114 | if (w->force) |
9b8a83b2 | 1115 | w->new_power = 1; |
d805002b | 1116 | else |
9b8a83b2 MB |
1117 | w->new_power = w->power_check(w); |
1118 | ||
1119 | w->power_checked = true; | |
1120 | ||
1121 | return w->new_power; | |
d805002b MB |
1122 | } |
1123 | ||
cd0f2d47 MB |
1124 | /* Generic check to see if a widget should be powered. |
1125 | */ | |
1126 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1127 | { | |
1128 | int in, out; | |
1129 | ||
de02d078 MB |
1130 | DAPM_UPDATE_STAT(w, power_checks); |
1131 | ||
ec2e3031 | 1132 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1133 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1134 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1135 | dapm_clear_walk_output(w->dapm, &w->sinks); |
cd0f2d47 MB |
1136 | return out != 0 && in != 0; |
1137 | } | |
1138 | ||
6ea31b9f MB |
1139 | /* Check to see if an ADC has power */ |
1140 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1141 | { | |
1142 | int in; | |
1143 | ||
de02d078 MB |
1144 | DAPM_UPDATE_STAT(w, power_checks); |
1145 | ||
6ea31b9f | 1146 | if (w->active) { |
ec2e3031 | 1147 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1148 | dapm_clear_walk_input(w->dapm, &w->sources); |
6ea31b9f MB |
1149 | return in != 0; |
1150 | } else { | |
1151 | return dapm_generic_check_power(w); | |
1152 | } | |
1153 | } | |
1154 | ||
1155 | /* Check to see if a DAC has power */ | |
1156 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1157 | { | |
1158 | int out; | |
1159 | ||
de02d078 MB |
1160 | DAPM_UPDATE_STAT(w, power_checks); |
1161 | ||
6ea31b9f | 1162 | if (w->active) { |
ec2e3031 | 1163 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1164 | dapm_clear_walk_output(w->dapm, &w->sinks); |
6ea31b9f MB |
1165 | return out != 0; |
1166 | } else { | |
1167 | return dapm_generic_check_power(w); | |
1168 | } | |
1169 | } | |
1170 | ||
246d0a17 MB |
1171 | /* Check to see if a power supply is needed */ |
1172 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1173 | { | |
1174 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1175 | |
de02d078 MB |
1176 | DAPM_UPDATE_STAT(w, power_checks); |
1177 | ||
246d0a17 MB |
1178 | /* Check if one of our outputs is connected */ |
1179 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1180 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1181 | ||
bf3a9e13 MB |
1182 | if (path->weak) |
1183 | continue; | |
1184 | ||
215edda3 MB |
1185 | if (path->connected && |
1186 | !path->connected(path->source, path->sink)) | |
1187 | continue; | |
1188 | ||
3017358a MB |
1189 | if (!path->sink) |
1190 | continue; | |
1191 | ||
f68d7e16 MB |
1192 | if (dapm_widget_power_check(path->sink)) |
1193 | return 1; | |
246d0a17 MB |
1194 | } |
1195 | ||
f68d7e16 | 1196 | return 0; |
246d0a17 MB |
1197 | } |
1198 | ||
35c64bca MB |
1199 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1200 | { | |
1201 | return 1; | |
1202 | } | |
1203 | ||
38357ab2 MB |
1204 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1205 | struct snd_soc_dapm_widget *b, | |
828a842f | 1206 | bool power_up) |
42aa3418 | 1207 | { |
828a842f MB |
1208 | int *sort; |
1209 | ||
1210 | if (power_up) | |
1211 | sort = dapm_up_seq; | |
1212 | else | |
1213 | sort = dapm_down_seq; | |
1214 | ||
38357ab2 MB |
1215 | if (sort[a->id] != sort[b->id]) |
1216 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1217 | if (a->subseq != b->subseq) { |
1218 | if (power_up) | |
1219 | return a->subseq - b->subseq; | |
1220 | else | |
1221 | return b->subseq - a->subseq; | |
1222 | } | |
b22ead2a MB |
1223 | if (a->reg != b->reg) |
1224 | return a->reg - b->reg; | |
84dab567 MB |
1225 | if (a->dapm != b->dapm) |
1226 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1227 | |
38357ab2 MB |
1228 | return 0; |
1229 | } | |
42aa3418 | 1230 | |
38357ab2 MB |
1231 | /* Insert a widget in order into a DAPM power sequence. */ |
1232 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1233 | struct list_head *list, | |
828a842f | 1234 | bool power_up) |
38357ab2 MB |
1235 | { |
1236 | struct snd_soc_dapm_widget *w; | |
1237 | ||
1238 | list_for_each_entry(w, list, power_list) | |
828a842f | 1239 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1240 | list_add_tail(&new_widget->power_list, &w->power_list); |
1241 | return; | |
1242 | } | |
1243 | ||
1244 | list_add_tail(&new_widget->power_list, list); | |
1245 | } | |
1246 | ||
68f89ad8 MB |
1247 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
1248 | struct snd_soc_dapm_widget *w, int event) | |
1249 | { | |
1250 | struct snd_soc_card *card = dapm->card; | |
1251 | const char *ev_name; | |
1252 | int power, ret; | |
1253 | ||
1254 | switch (event) { | |
1255 | case SND_SOC_DAPM_PRE_PMU: | |
1256 | ev_name = "PRE_PMU"; | |
1257 | power = 1; | |
1258 | break; | |
1259 | case SND_SOC_DAPM_POST_PMU: | |
1260 | ev_name = "POST_PMU"; | |
1261 | power = 1; | |
1262 | break; | |
1263 | case SND_SOC_DAPM_PRE_PMD: | |
1264 | ev_name = "PRE_PMD"; | |
1265 | power = 0; | |
1266 | break; | |
1267 | case SND_SOC_DAPM_POST_PMD: | |
1268 | ev_name = "POST_PMD"; | |
1269 | power = 0; | |
1270 | break; | |
80114129 MB |
1271 | case SND_SOC_DAPM_WILL_PMU: |
1272 | ev_name = "WILL_PMU"; | |
1273 | power = 1; | |
1274 | break; | |
1275 | case SND_SOC_DAPM_WILL_PMD: | |
1276 | ev_name = "WILL_PMD"; | |
1277 | power = 0; | |
1278 | break; | |
68f89ad8 MB |
1279 | default: |
1280 | BUG(); | |
1281 | return; | |
1282 | } | |
1283 | ||
1284 | if (w->power != power) | |
1285 | return; | |
1286 | ||
1287 | if (w->event && (w->event_flags & event)) { | |
1288 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1289 | w->name, ev_name); | |
84e90930 | 1290 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1291 | ret = w->event(w, NULL, event); |
84e90930 | 1292 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 | 1293 | if (ret < 0) |
30a6a1a4 | 1294 | dev_err(dapm->dev, "ASoC: %s: %s event failed: %d\n", |
68f89ad8 MB |
1295 | ev_name, w->name, ret); |
1296 | } | |
1297 | } | |
1298 | ||
b22ead2a | 1299 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1300 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1301 | struct list_head *pending) |
163cac06 | 1302 | { |
3a45b867 | 1303 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1304 | struct snd_soc_dapm_widget *w; |
1305 | int reg, power; | |
b22ead2a MB |
1306 | unsigned int value = 0; |
1307 | unsigned int mask = 0; | |
1308 | unsigned int cur_mask; | |
1309 | ||
1310 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1311 | power_list)->reg; | |
1312 | ||
1313 | list_for_each_entry(w, pending, power_list) { | |
1314 | cur_mask = 1 << w->shift; | |
1315 | BUG_ON(reg != w->reg); | |
1316 | ||
1317 | if (w->invert) | |
1318 | power = !w->power; | |
1319 | else | |
1320 | power = w->power; | |
1321 | ||
1322 | mask |= cur_mask; | |
1323 | if (power) | |
1324 | value |= cur_mask; | |
1325 | ||
fd8d3bc0 | 1326 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1327 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1328 | w->name, reg, value, mask); | |
81628103 | 1329 | |
68f89ad8 MB |
1330 | /* Check for events */ |
1331 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1332 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1333 | } |
1334 | ||
1335 | if (reg >= 0) { | |
29376bc7 MB |
1336 | /* Any widget will do, they should all be updating the |
1337 | * same register. | |
1338 | */ | |
1339 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1340 | power_list); | |
1341 | ||
fd8d3bc0 | 1342 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1343 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1344 | value, mask, reg, card->pop_time); |
1345 | pop_wait(card->pop_time); | |
49575fb5 | 1346 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1347 | } |
1348 | ||
81628103 | 1349 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1350 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1351 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1352 | } |
b22ead2a | 1353 | } |
42aa3418 | 1354 | |
b22ead2a MB |
1355 | /* Apply a DAPM power sequence. |
1356 | * | |
1357 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1358 | * order to minimise the number of writes to the device required | |
1359 | * multiple widgets will be updated in a single write where possible. | |
1360 | * Currently anything that requires more than a single write is not | |
1361 | * handled. | |
1362 | */ | |
ce6120cc | 1363 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1364 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1365 | { |
1366 | struct snd_soc_dapm_widget *w, *n; | |
1367 | LIST_HEAD(pending); | |
1368 | int cur_sort = -1; | |
20e4859d | 1369 | int cur_subseq = -1; |
b22ead2a | 1370 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1371 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1372 | int ret, i; |
828a842f MB |
1373 | int *sort; |
1374 | ||
1375 | if (power_up) | |
1376 | sort = dapm_up_seq; | |
1377 | else | |
1378 | sort = dapm_down_seq; | |
163cac06 | 1379 | |
b22ead2a MB |
1380 | list_for_each_entry_safe(w, n, list, power_list) { |
1381 | ret = 0; | |
1382 | ||
1383 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1384 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1385 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1386 | if (!list_empty(&pending)) |
7be31be8 | 1387 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1388 | |
474b62d6 MB |
1389 | if (cur_dapm && cur_dapm->seq_notifier) { |
1390 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1391 | if (sort[i] == cur_sort) | |
1392 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1393 | i, |
1394 | cur_subseq); | |
474b62d6 MB |
1395 | } |
1396 | ||
b22ead2a MB |
1397 | INIT_LIST_HEAD(&pending); |
1398 | cur_sort = -1; | |
b0b3e6f8 | 1399 | cur_subseq = INT_MIN; |
b22ead2a | 1400 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1401 | cur_dapm = NULL; |
b22ead2a MB |
1402 | } |
1403 | ||
163cac06 MB |
1404 | switch (w->id) { |
1405 | case snd_soc_dapm_pre: | |
1406 | if (!w->event) | |
b22ead2a MB |
1407 | list_for_each_entry_safe_continue(w, n, list, |
1408 | power_list); | |
163cac06 | 1409 | |
b22ead2a | 1410 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1411 | ret = w->event(w, |
1412 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1413 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1414 | ret = w->event(w, |
1415 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1416 | break; |
1417 | ||
1418 | case snd_soc_dapm_post: | |
1419 | if (!w->event) | |
b22ead2a MB |
1420 | list_for_each_entry_safe_continue(w, n, list, |
1421 | power_list); | |
163cac06 | 1422 | |
b22ead2a | 1423 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1424 | ret = w->event(w, |
1425 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1426 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1427 | ret = w->event(w, |
1428 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1429 | break; |
1430 | ||
b22ead2a | 1431 | default: |
81628103 MB |
1432 | /* Queue it up for application */ |
1433 | cur_sort = sort[w->id]; | |
20e4859d | 1434 | cur_subseq = w->subseq; |
81628103 | 1435 | cur_reg = w->reg; |
7be31be8 | 1436 | cur_dapm = w->dapm; |
81628103 MB |
1437 | list_move(&w->power_list, &pending); |
1438 | break; | |
163cac06 | 1439 | } |
b22ead2a MB |
1440 | |
1441 | if (ret < 0) | |
f7d41ae8 | 1442 | dev_err(w->dapm->dev, |
30a6a1a4 | 1443 | "ASoC: Failed to apply widget power: %d\n", ret); |
6ea31b9f | 1444 | } |
b22ead2a MB |
1445 | |
1446 | if (!list_empty(&pending)) | |
28e86808 | 1447 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1448 | |
1449 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1450 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1451 | if (sort[i] == cur_sort) | |
1452 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1453 | i, cur_subseq); |
474b62d6 | 1454 | } |
42aa3418 MB |
1455 | } |
1456 | ||
97404f2e MB |
1457 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1458 | { | |
1459 | struct snd_soc_dapm_update *update = dapm->update; | |
1460 | struct snd_soc_dapm_widget *w; | |
1461 | int ret; | |
1462 | ||
1463 | if (!update) | |
1464 | return; | |
1465 | ||
1466 | w = update->widget; | |
1467 | ||
1468 | if (w->event && | |
1469 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1470 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1471 | if (ret != 0) | |
30a6a1a4 | 1472 | dev_err(dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", |
97404f2e MB |
1473 | w->name, ret); |
1474 | } | |
1475 | ||
49575fb5 | 1476 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1477 | update->val); |
1478 | if (ret < 0) | |
30a6a1a4 LG |
1479 | dev_err(dapm->dev, "ASoC: %s DAPM update failed: %d\n", |
1480 | w->name, ret); | |
97404f2e MB |
1481 | |
1482 | if (w->event && | |
1483 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1484 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1485 | if (ret != 0) | |
30a6a1a4 | 1486 | dev_err(dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", |
97404f2e MB |
1487 | w->name, ret); |
1488 | } | |
1489 | } | |
1490 | ||
9d0624a7 MB |
1491 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1492 | * they're changing state. | |
1493 | */ | |
1494 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1495 | { | |
1496 | struct snd_soc_dapm_context *d = data; | |
1497 | int ret; | |
1498 | ||
56fba41f MB |
1499 | /* If we're off and we're not supposed to be go into STANDBY */ |
1500 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1501 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1502 | if (d->dev) |
1503 | pm_runtime_get_sync(d->dev); | |
1504 | ||
9d0624a7 MB |
1505 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1506 | if (ret != 0) | |
1507 | dev_err(d->dev, | |
30a6a1a4 | 1508 | "ASoC: Failed to turn on bias: %d\n", ret); |
9d0624a7 MB |
1509 | } |
1510 | ||
56fba41f MB |
1511 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1512 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1513 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1514 | if (ret != 0) | |
1515 | dev_err(d->dev, | |
30a6a1a4 | 1516 | "ASoC: Failed to prepare bias: %d\n", ret); |
9d0624a7 MB |
1517 | } |
1518 | } | |
1519 | ||
1520 | /* Async callback run prior to DAPM sequences - brings to their final | |
1521 | * state. | |
1522 | */ | |
1523 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1524 | { | |
1525 | struct snd_soc_dapm_context *d = data; | |
1526 | int ret; | |
1527 | ||
1528 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1529 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1530 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1531 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1532 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1533 | if (ret != 0) | |
30a6a1a4 | 1534 | dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", |
9d0624a7 MB |
1535 | ret); |
1536 | } | |
97404f2e | 1537 | |
9d0624a7 | 1538 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1539 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1540 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1541 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1542 | if (ret != 0) | |
30a6a1a4 LG |
1543 | dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", |
1544 | ret); | |
f1aac484 MB |
1545 | |
1546 | if (d->dev) | |
fb644e9c | 1547 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1548 | } |
1549 | ||
1550 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1551 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1552 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1553 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1554 | if (ret != 0) | |
30a6a1a4 | 1555 | dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", |
9d0624a7 MB |
1556 | ret); |
1557 | } | |
1558 | } | |
97404f2e | 1559 | |
fe4fda5d MB |
1560 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1561 | bool power, bool connect) | |
1562 | { | |
1563 | /* If a connection is being made or broken then that update | |
1564 | * will have marked the peer dirty, otherwise the widgets are | |
1565 | * not connected and this update has no impact. */ | |
1566 | if (!connect) | |
1567 | return; | |
1568 | ||
1569 | /* If the peer is already in the state we're moving to then we | |
1570 | * won't have an impact on it. */ | |
1571 | if (power != peer->power) | |
75c1f891 | 1572 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1573 | } |
1574 | ||
05623c43 MB |
1575 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1576 | struct list_head *up_list, | |
1577 | struct list_head *down_list) | |
1578 | { | |
db432b41 MB |
1579 | struct snd_soc_dapm_path *path; |
1580 | ||
05623c43 MB |
1581 | if (w->power == power) |
1582 | return; | |
1583 | ||
1584 | trace_snd_soc_dapm_widget_power(w, power); | |
1585 | ||
db432b41 | 1586 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1587 | * also. |
db432b41 MB |
1588 | */ |
1589 | list_for_each_entry(path, &w->sources, list_sink) { | |
1590 | if (path->source) { | |
fe4fda5d MB |
1591 | dapm_widget_set_peer_power(path->source, power, |
1592 | path->connect); | |
db432b41 MB |
1593 | } |
1594 | } | |
f3bf3e45 MB |
1595 | switch (w->id) { |
1596 | case snd_soc_dapm_supply: | |
62ea874a | 1597 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1598 | case snd_soc_dapm_clock_supply: |
f3bf3e45 MB |
1599 | /* Supplies can't affect their outputs, only their inputs */ |
1600 | break; | |
1601 | default: | |
1602 | list_for_each_entry(path, &w->sinks, list_source) { | |
1603 | if (path->sink) { | |
1604 | dapm_widget_set_peer_power(path->sink, power, | |
1605 | path->connect); | |
1606 | } | |
db432b41 | 1607 | } |
f3bf3e45 | 1608 | break; |
db432b41 MB |
1609 | } |
1610 | ||
05623c43 MB |
1611 | if (power) |
1612 | dapm_seq_insert(w, up_list, true); | |
1613 | else | |
1614 | dapm_seq_insert(w, down_list, false); | |
1615 | ||
1616 | w->power = power; | |
1617 | } | |
1618 | ||
7c81beb0 MB |
1619 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1620 | struct list_head *up_list, | |
1621 | struct list_head *down_list) | |
1622 | { | |
7c81beb0 MB |
1623 | int power; |
1624 | ||
1625 | switch (w->id) { | |
1626 | case snd_soc_dapm_pre: | |
1627 | dapm_seq_insert(w, down_list, false); | |
1628 | break; | |
1629 | case snd_soc_dapm_post: | |
1630 | dapm_seq_insert(w, up_list, true); | |
1631 | break; | |
1632 | ||
1633 | default: | |
d805002b | 1634 | power = dapm_widget_power_check(w); |
7c81beb0 | 1635 | |
05623c43 | 1636 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1637 | break; |
1638 | } | |
1639 | } | |
1640 | ||
2b97eabc RP |
1641 | /* |
1642 | * Scan each dapm widget for complete audio path. | |
1643 | * A complete path is a route that has valid endpoints i.e.:- | |
1644 | * | |
1645 | * o DAC to output pin. | |
1646 | * o Input Pin to ADC. | |
1647 | * o Input pin to Output pin (bypass, sidetone) | |
1648 | * o DAC to ADC (loopback). | |
1649 | */ | |
ce6120cc | 1650 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1651 | { |
12ea2c78 | 1652 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1653 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1654 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1655 | LIST_HEAD(up_list); |
1656 | LIST_HEAD(down_list); | |
2955b47d | 1657 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1658 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1659 | |
84e90930 MB |
1660 | trace_snd_soc_dapm_start(card); |
1661 | ||
56fba41f | 1662 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1663 | if (d->idle_bias_off) |
1664 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1665 | else | |
1666 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1667 | } |
7be31be8 | 1668 | |
6c120e19 | 1669 | dapm_reset(card); |
9b8a83b2 | 1670 | |
6d3ddc81 | 1671 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1672 | * lists indicating if they should be powered up or down. We |
1673 | * only check widgets that have been flagged as dirty but note | |
1674 | * that new widgets may be added to the dirty list while we | |
1675 | * iterate. | |
6d3ddc81 | 1676 | */ |
db432b41 | 1677 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1678 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1679 | } |
1680 | ||
f9de6d74 | 1681 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1682 | switch (w->id) { |
1683 | case snd_soc_dapm_pre: | |
1684 | case snd_soc_dapm_post: | |
1685 | /* These widgets always need to be powered */ | |
1686 | break; | |
1687 | default: | |
1688 | list_del_init(&w->dirty); | |
1689 | break; | |
1690 | } | |
db432b41 | 1691 | |
f9de6d74 MB |
1692 | if (w->power) { |
1693 | d = w->dapm; | |
1694 | ||
1695 | /* Supplies and micbiases only bring the | |
1696 | * context up to STANDBY as unless something | |
1697 | * else is active and passing audio they | |
afe62367 MB |
1698 | * generally don't require full power. Signal |
1699 | * generators are virtual pins and have no | |
1700 | * power impact themselves. | |
f9de6d74 MB |
1701 | */ |
1702 | switch (w->id) { | |
afe62367 MB |
1703 | case snd_soc_dapm_siggen: |
1704 | break; | |
f9de6d74 | 1705 | case snd_soc_dapm_supply: |
62ea874a | 1706 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1707 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1708 | case snd_soc_dapm_micbias: |
1709 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1710 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1711 | break; | |
1712 | default: | |
1713 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1714 | break; | |
1715 | } | |
1716 | } | |
1717 | ||
1718 | } | |
1719 | ||
85a843c5 MB |
1720 | /* Force all contexts in the card to the same bias state if |
1721 | * they're not ground referenced. | |
1722 | */ | |
56fba41f | 1723 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1724 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1725 | if (d->target_bias_level > bias) |
1726 | bias = d->target_bias_level; | |
52ba67bf | 1727 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1728 | if (!d->idle_bias_off) |
1729 | d->target_bias_level = bias; | |
52ba67bf | 1730 | |
de02d078 | 1731 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1732 | |
9d0624a7 MB |
1733 | /* Run all the bias changes in parallel */ |
1734 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1735 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1736 | &async_domain); | |
1737 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1738 | |
cf1f7c6e | 1739 | list_for_each_entry(w, &down_list, power_list) { |
80114129 MB |
1740 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_WILL_PMD); |
1741 | } | |
1742 | ||
cf1f7c6e | 1743 | list_for_each_entry(w, &up_list, power_list) { |
80114129 MB |
1744 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_WILL_PMU); |
1745 | } | |
1746 | ||
6d3ddc81 | 1747 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1748 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1749 | |
97404f2e MB |
1750 | dapm_widget_update(dapm); |
1751 | ||
6d3ddc81 | 1752 | /* Now power up. */ |
828a842f | 1753 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1754 | |
9d0624a7 MB |
1755 | /* Run all the bias changes in parallel */ |
1756 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1757 | async_schedule_domain(dapm_post_sequence_async, d, | |
1758 | &async_domain); | |
1759 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1760 | |
8078d87f LG |
1761 | /* do we need to notify any clients that DAPM event is complete */ |
1762 | list_for_each_entry(d, &card->dapm_list, list) { | |
1763 | if (d->stream_event) | |
1764 | d->stream_event(d, event); | |
1765 | } | |
1766 | ||
fd8d3bc0 JN |
1767 | pop_dbg(dapm->dev, card->pop_time, |
1768 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1769 | pop_wait(card->pop_time); |
cb507e7e | 1770 | |
84e90930 MB |
1771 | trace_snd_soc_dapm_done(card); |
1772 | ||
42aa3418 | 1773 | return 0; |
2b97eabc RP |
1774 | } |
1775 | ||
79fb9387 | 1776 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1777 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1778 | char __user *user_buf, | |
1779 | size_t count, loff_t *ppos) | |
1780 | { | |
1781 | struct snd_soc_dapm_widget *w = file->private_data; | |
1782 | char *buf; | |
1783 | int in, out; | |
1784 | ssize_t ret; | |
1785 | struct snd_soc_dapm_path *p = NULL; | |
1786 | ||
1787 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1788 | if (!buf) | |
1789 | return -ENOMEM; | |
1790 | ||
ec2e3031 | 1791 | in = is_connected_input_ep(w, NULL); |
1059ecfa | 1792 | dapm_clear_walk_input(w->dapm, &w->sources); |
ec2e3031 | 1793 | out = is_connected_output_ep(w, NULL); |
1059ecfa | 1794 | dapm_clear_walk_output(w->dapm, &w->sinks); |
79fb9387 | 1795 | |
f13ebada MB |
1796 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1797 | w->name, w->power ? "On" : "Off", | |
1798 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1799 | |
d033c36a MB |
1800 | if (w->reg >= 0) |
1801 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1802 | " - R%d(0x%x) bit %d", | |
1803 | w->reg, w->reg, w->shift); | |
1804 | ||
1805 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1806 | ||
3eef08ba MB |
1807 | if (w->sname) |
1808 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1809 | w->sname, | |
1810 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1811 | |
1812 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1813 | if (p->connected && !p->connected(w, p->sink)) |
1814 | continue; | |
1815 | ||
79fb9387 MB |
1816 | if (p->connect) |
1817 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1818 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1819 | p->name ? p->name : "static", |
1820 | p->source->name); | |
1821 | } | |
1822 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1823 | if (p->connected && !p->connected(w, p->sink)) |
1824 | continue; | |
1825 | ||
79fb9387 MB |
1826 | if (p->connect) |
1827 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1828 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1829 | p->name ? p->name : "static", |
1830 | p->sink->name); | |
1831 | } | |
1832 | ||
1833 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1834 | ||
1835 | kfree(buf); | |
1836 | return ret; | |
1837 | } | |
1838 | ||
1839 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1840 | .open = simple_open, |
79fb9387 | 1841 | .read = dapm_widget_power_read_file, |
6038f373 | 1842 | .llseek = default_llseek, |
79fb9387 MB |
1843 | }; |
1844 | ||
ef49e4fa MB |
1845 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1846 | size_t count, loff_t *ppos) | |
1847 | { | |
1848 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1849 | char *level; | |
1850 | ||
1851 | switch (dapm->bias_level) { | |
1852 | case SND_SOC_BIAS_ON: | |
1853 | level = "On\n"; | |
1854 | break; | |
1855 | case SND_SOC_BIAS_PREPARE: | |
1856 | level = "Prepare\n"; | |
1857 | break; | |
1858 | case SND_SOC_BIAS_STANDBY: | |
1859 | level = "Standby\n"; | |
1860 | break; | |
1861 | case SND_SOC_BIAS_OFF: | |
1862 | level = "Off\n"; | |
1863 | break; | |
1864 | default: | |
1865 | BUG(); | |
1866 | level = "Unknown\n"; | |
1867 | break; | |
1868 | } | |
1869 | ||
1870 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1871 | strlen(level)); | |
1872 | } | |
1873 | ||
1874 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1875 | .open = simple_open, |
ef49e4fa MB |
1876 | .read = dapm_bias_read_file, |
1877 | .llseek = default_llseek, | |
1878 | }; | |
1879 | ||
8eecaf62 LPC |
1880 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1881 | struct dentry *parent) | |
79fb9387 | 1882 | { |
79fb9387 MB |
1883 | struct dentry *d; |
1884 | ||
8eecaf62 LPC |
1885 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1886 | ||
1887 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1888 | dev_warn(dapm->dev, |
30a6a1a4 | 1889 | "ASoC: Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1890 | return; |
8eecaf62 | 1891 | } |
79fb9387 | 1892 | |
ef49e4fa MB |
1893 | d = debugfs_create_file("bias_level", 0444, |
1894 | dapm->debugfs_dapm, dapm, | |
1895 | &dapm_bias_fops); | |
1896 | if (!d) | |
1897 | dev_warn(dapm->dev, | |
1898 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1899 | } |
ef49e4fa | 1900 | |
d5d1e0be LPC |
1901 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1902 | { | |
1903 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1904 | struct dentry *d; | |
79fb9387 | 1905 | |
d5d1e0be LPC |
1906 | if (!dapm->debugfs_dapm || !w->name) |
1907 | return; | |
1908 | ||
1909 | d = debugfs_create_file(w->name, 0444, | |
1910 | dapm->debugfs_dapm, w, | |
1911 | &dapm_widget_power_fops); | |
1912 | if (!d) | |
1913 | dev_warn(w->dapm->dev, | |
1914 | "ASoC: Failed to create %s debugfs file\n", | |
1915 | w->name); | |
79fb9387 | 1916 | } |
d5d1e0be | 1917 | |
6c45e126 LPC |
1918 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1919 | { | |
1920 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1921 | } | |
1922 | ||
79fb9387 | 1923 | #else |
8eecaf62 LPC |
1924 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1925 | struct dentry *parent) | |
79fb9387 MB |
1926 | { |
1927 | } | |
d5d1e0be LPC |
1928 | |
1929 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1930 | { | |
1931 | } | |
1932 | ||
6c45e126 LPC |
1933 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1934 | { | |
1935 | } | |
1936 | ||
79fb9387 MB |
1937 | #endif |
1938 | ||
2b97eabc | 1939 | /* test and update the power status of a mux widget */ |
4edbb345 | 1940 | static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
40f02cd9 | 1941 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1942 | { |
1943 | struct snd_soc_dapm_path *path; | |
1944 | int found = 0; | |
1945 | ||
eff317d0 | 1946 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1947 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1948 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1949 | return -ENODEV; |
1950 | ||
2b97eabc | 1951 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1952 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1953 | if (path->kcontrol != kcontrol) |
1954 | continue; | |
1955 | ||
cb01e2b9 | 1956 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1957 | continue; |
1958 | ||
1959 | found = 1; | |
1960 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1961 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1962 | path->connect = 1; /* new connection */ |
75c1f891 | 1963 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1964 | } else { |
1965 | if (path->connect) | |
75c1f891 MB |
1966 | dapm_mark_dirty(path->source, |
1967 | "mux disconnection"); | |
2b97eabc | 1968 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1969 | } |
2b97eabc RP |
1970 | } |
1971 | ||
db432b41 | 1972 | if (found) { |
75c1f891 | 1973 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1974 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1975 | } |
2b97eabc | 1976 | |
618dae11 | 1977 | return found; |
2b97eabc | 1978 | } |
4edbb345 LG |
1979 | |
1980 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, | |
1981 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) | |
1982 | { | |
1983 | struct snd_soc_card *card = widget->dapm->card; | |
1984 | int ret; | |
1985 | ||
3cd04343 | 1986 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1987 | ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1988 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1989 | if (ret > 0) |
1990 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1991 | return ret; |
1992 | } | |
40f02cd9 | 1993 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1994 | |
1b075e3f | 1995 | /* test and update the power status of a mixer or switch widget */ |
4edbb345 | 1996 | static int soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1997 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1998 | { |
1999 | struct snd_soc_dapm_path *path; | |
2000 | int found = 0; | |
2001 | ||
1b075e3f | 2002 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 2003 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 2004 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
2005 | return -ENODEV; |
2006 | ||
2b97eabc | 2007 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 2008 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
2009 | if (path->kcontrol != kcontrol) |
2010 | continue; | |
2011 | ||
2012 | /* found, now check type */ | |
2013 | found = 1; | |
283375ce | 2014 | path->connect = connect; |
75c1f891 | 2015 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
2016 | } |
2017 | ||
db432b41 | 2018 | if (found) { |
75c1f891 | 2019 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 2020 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 2021 | } |
2b97eabc | 2022 | |
618dae11 | 2023 | return found; |
2b97eabc | 2024 | } |
4edbb345 LG |
2025 | |
2026 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, | |
2027 | struct snd_kcontrol *kcontrol, int connect) | |
2028 | { | |
2029 | struct snd_soc_card *card = widget->dapm->card; | |
2030 | int ret; | |
2031 | ||
3cd04343 | 2032 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
2033 | ret = soc_dapm_mixer_update_power(widget, kcontrol, connect); |
2034 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
2035 | if (ret > 0) |
2036 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
2037 | return ret; |
2038 | } | |
40f02cd9 | 2039 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
2040 | |
2041 | /* show dapm widget status in sys fs */ | |
2042 | static ssize_t dapm_widget_show(struct device *dev, | |
2043 | struct device_attribute *attr, char *buf) | |
2044 | { | |
36ae1a96 | 2045 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 2046 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
2047 | struct snd_soc_dapm_widget *w; |
2048 | int count = 0; | |
2049 | char *state = "not set"; | |
2050 | ||
97c866de JN |
2051 | list_for_each_entry(w, &codec->card->widgets, list) { |
2052 | if (w->dapm != &codec->dapm) | |
2053 | continue; | |
2b97eabc RP |
2054 | |
2055 | /* only display widgets that burnm power */ | |
2056 | switch (w->id) { | |
2057 | case snd_soc_dapm_hp: | |
2058 | case snd_soc_dapm_mic: | |
2059 | case snd_soc_dapm_spk: | |
2060 | case snd_soc_dapm_line: | |
2061 | case snd_soc_dapm_micbias: | |
2062 | case snd_soc_dapm_dac: | |
2063 | case snd_soc_dapm_adc: | |
2064 | case snd_soc_dapm_pga: | |
d88429a6 | 2065 | case snd_soc_dapm_out_drv: |
2b97eabc | 2066 | case snd_soc_dapm_mixer: |
ca9c1aae | 2067 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2068 | case snd_soc_dapm_supply: |
62ea874a | 2069 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2070 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2071 | if (w->name) |
2072 | count += sprintf(buf + count, "%s: %s\n", | |
2073 | w->name, w->power ? "On":"Off"); | |
2074 | break; | |
2075 | default: | |
2076 | break; | |
2077 | } | |
2078 | } | |
2079 | ||
ce6120cc | 2080 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2081 | case SND_SOC_BIAS_ON: |
2082 | state = "On"; | |
2b97eabc | 2083 | break; |
0be9898a MB |
2084 | case SND_SOC_BIAS_PREPARE: |
2085 | state = "Prepare"; | |
2b97eabc | 2086 | break; |
0be9898a MB |
2087 | case SND_SOC_BIAS_STANDBY: |
2088 | state = "Standby"; | |
2b97eabc | 2089 | break; |
0be9898a MB |
2090 | case SND_SOC_BIAS_OFF: |
2091 | state = "Off"; | |
2b97eabc RP |
2092 | break; |
2093 | } | |
2094 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2095 | ||
2096 | return count; | |
2097 | } | |
2098 | ||
2099 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2100 | ||
2101 | int snd_soc_dapm_sys_add(struct device *dev) | |
2102 | { | |
12ef193d | 2103 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2104 | } |
2105 | ||
2106 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2107 | { | |
aef90843 | 2108 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2109 | } |
2110 | ||
8872293f LPC |
2111 | static void dapm_free_path(struct snd_soc_dapm_path *path) |
2112 | { | |
2113 | list_del(&path->list_sink); | |
2114 | list_del(&path->list_source); | |
2115 | list_del(&path->list); | |
8872293f LPC |
2116 | kfree(path); |
2117 | } | |
2118 | ||
2b97eabc | 2119 | /* free all dapm widgets and resources */ |
ce6120cc | 2120 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2121 | { |
2122 | struct snd_soc_dapm_widget *w, *next_w; | |
2123 | struct snd_soc_dapm_path *p, *next_p; | |
2124 | ||
97c866de JN |
2125 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2126 | if (w->dapm != dapm) | |
2127 | continue; | |
2b97eabc | 2128 | list_del(&w->list); |
8ddab3f5 JN |
2129 | /* |
2130 | * remove source and sink paths associated to this widget. | |
2131 | * While removing the path, remove reference to it from both | |
2132 | * source and sink widgets so that path is removed only once. | |
2133 | */ | |
8872293f LPC |
2134 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) |
2135 | dapm_free_path(p); | |
2136 | ||
2137 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) | |
2138 | dapm_free_path(p); | |
2139 | ||
fad59888 | 2140 | kfree(w->kcontrols); |
ead9b919 | 2141 | kfree(w->name); |
2b97eabc RP |
2142 | kfree(w); |
2143 | } | |
2b97eabc RP |
2144 | } |
2145 | ||
91a5fca4 LPC |
2146 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2147 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2148 | bool search_other_contexts) | |
a5302181 LG |
2149 | { |
2150 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2151 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2152 | |
97c866de | 2153 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2154 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2155 | if (w->dapm == dapm) |
2156 | return w; | |
2157 | else | |
2158 | fallback = w; | |
a5302181 LG |
2159 | } |
2160 | } | |
2161 | ||
91a5fca4 LPC |
2162 | if (search_other_contexts) |
2163 | return fallback; | |
2164 | ||
2165 | return NULL; | |
2166 | } | |
2167 | ||
2168 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2169 | const char *pin, int status) | |
2170 | { | |
2171 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2172 | ||
2173 | if (!w) { | |
30a6a1a4 | 2174 | dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); |
91a5fca4 | 2175 | return -EINVAL; |
0d86733c MB |
2176 | } |
2177 | ||
1a8b2d9d MB |
2178 | if (w->connected != status) |
2179 | dapm_mark_dirty(w, "pin configuration"); | |
2180 | ||
91a5fca4 LPC |
2181 | w->connected = status; |
2182 | if (status == 0) | |
2183 | w->force = 0; | |
2184 | ||
2185 | return 0; | |
a5302181 LG |
2186 | } |
2187 | ||
2b97eabc | 2188 | /** |
a5302181 | 2189 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2190 | * @dapm: DAPM context |
2b97eabc RP |
2191 | * |
2192 | * Walks all dapm audio paths and powers widgets according to their | |
2193 | * stream or path usage. | |
2194 | * | |
2195 | * Returns 0 for success. | |
2196 | */ | |
ce6120cc | 2197 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2198 | { |
a73fb2df LG |
2199 | int ret; |
2200 | ||
4f4c0072 MB |
2201 | /* |
2202 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2203 | * silly DAPM runs during card startup. | |
2204 | */ | |
2205 | if (!dapm->card || !dapm->card->instantiated) | |
2206 | return 0; | |
2207 | ||
3cd04343 | 2208 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
a73fb2df LG |
2209 | ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2210 | mutex_unlock(&dapm->card->dapm_mutex); | |
2211 | return ret; | |
2b97eabc | 2212 | } |
a5302181 | 2213 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2214 | |
ce6120cc | 2215 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 2216 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
2217 | { |
2218 | struct snd_soc_dapm_path *path; | |
2219 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 2220 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 2221 | const char *sink; |
215edda3 | 2222 | const char *control = route->control; |
ead9b919 JN |
2223 | const char *source; |
2224 | char prefixed_sink[80]; | |
2225 | char prefixed_source[80]; | |
2b97eabc RP |
2226 | int ret = 0; |
2227 | ||
88e8b9a8 | 2228 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
2229 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2230 | dapm->codec->name_prefix, route->sink); | |
2231 | sink = prefixed_sink; | |
2232 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2233 | dapm->codec->name_prefix, route->source); | |
2234 | source = prefixed_source; | |
2235 | } else { | |
2236 | sink = route->sink; | |
2237 | source = route->source; | |
2238 | } | |
2239 | ||
97c866de JN |
2240 | /* |
2241 | * find src and dest widgets over all widgets but favor a widget from | |
2242 | * current DAPM context | |
2243 | */ | |
2244 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 2245 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
2246 | wtsink = w; |
2247 | if (w->dapm == dapm) | |
2248 | wsink = w; | |
2b97eabc RP |
2249 | continue; |
2250 | } | |
2251 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
2252 | wtsource = w; |
2253 | if (w->dapm == dapm) | |
2254 | wsource = w; | |
2b97eabc RP |
2255 | } |
2256 | } | |
97c866de JN |
2257 | /* use widget from another DAPM context if not found from this */ |
2258 | if (!wsink) | |
2259 | wsink = wtsink; | |
2260 | if (!wsource) | |
2261 | wsource = wtsource; | |
2b97eabc | 2262 | |
30a6a1a4 LG |
2263 | if (wsource == NULL) { |
2264 | dev_err(dapm->dev, "ASoC: no source widget found for %s\n", | |
2265 | route->source); | |
2b97eabc | 2266 | return -ENODEV; |
30a6a1a4 LG |
2267 | } |
2268 | if (wsink == NULL) { | |
2269 | dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", | |
2270 | route->sink); | |
2271 | return -ENODEV; | |
2272 | } | |
2b97eabc RP |
2273 | |
2274 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2275 | if (!path) | |
2276 | return -ENOMEM; | |
2277 | ||
2278 | path->source = wsource; | |
2279 | path->sink = wsink; | |
215edda3 | 2280 | path->connected = route->connected; |
2b97eabc RP |
2281 | INIT_LIST_HEAD(&path->list); |
2282 | INIT_LIST_HEAD(&path->list_source); | |
2283 | INIT_LIST_HEAD(&path->list_sink); | |
2284 | ||
2285 | /* check for external widgets */ | |
2286 | if (wsink->id == snd_soc_dapm_input) { | |
2287 | if (wsource->id == snd_soc_dapm_micbias || | |
2288 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2289 | wsource->id == snd_soc_dapm_line || |
2290 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2291 | wsink->ext = 1; |
2292 | } | |
2293 | if (wsource->id == snd_soc_dapm_output) { | |
2294 | if (wsink->id == snd_soc_dapm_spk || | |
2295 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2296 | wsink->id == snd_soc_dapm_line || |
2297 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2298 | wsource->ext = 1; |
2299 | } | |
2300 | ||
2301 | /* connect static paths */ | |
2302 | if (control == NULL) { | |
8ddab3f5 | 2303 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2304 | list_add(&path->list_sink, &wsink->sources); |
2305 | list_add(&path->list_source, &wsource->sinks); | |
2306 | path->connect = 1; | |
2307 | return 0; | |
2308 | } | |
2309 | ||
2310 | /* connect dynamic paths */ | |
dc2bea61 | 2311 | switch (wsink->id) { |
2b97eabc RP |
2312 | case snd_soc_dapm_adc: |
2313 | case snd_soc_dapm_dac: | |
2314 | case snd_soc_dapm_pga: | |
d88429a6 | 2315 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2316 | case snd_soc_dapm_input: |
2317 | case snd_soc_dapm_output: | |
1ab97c8c | 2318 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2319 | case snd_soc_dapm_micbias: |
2320 | case snd_soc_dapm_vmid: | |
2321 | case snd_soc_dapm_pre: | |
2322 | case snd_soc_dapm_post: | |
246d0a17 | 2323 | case snd_soc_dapm_supply: |
62ea874a | 2324 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2325 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2326 | case snd_soc_dapm_aif_in: |
2327 | case snd_soc_dapm_aif_out: | |
4616274d MB |
2328 | case snd_soc_dapm_dai_in: |
2329 | case snd_soc_dapm_dai_out: | |
c74184ed | 2330 | case snd_soc_dapm_dai_link: |
8ddab3f5 | 2331 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2332 | list_add(&path->list_sink, &wsink->sources); |
2333 | list_add(&path->list_source, &wsource->sinks); | |
2334 | path->connect = 1; | |
2335 | return 0; | |
2336 | case snd_soc_dapm_mux: | |
24ff33ac | 2337 | case snd_soc_dapm_virt_mux: |
74155556 | 2338 | case snd_soc_dapm_value_mux: |
ce6120cc | 2339 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2340 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2341 | if (ret != 0) |
2342 | goto err; | |
2343 | break; | |
2344 | case snd_soc_dapm_switch: | |
2345 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2346 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2347 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2348 | if (ret != 0) |
2349 | goto err; | |
2350 | break; | |
2351 | case snd_soc_dapm_hp: | |
2352 | case snd_soc_dapm_mic: | |
2353 | case snd_soc_dapm_line: | |
2354 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2355 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2356 | list_add(&path->list_sink, &wsink->sources); |
2357 | list_add(&path->list_source, &wsource->sinks); | |
2358 | path->connect = 0; | |
2359 | return 0; | |
2360 | } | |
fabd0384 MB |
2361 | |
2362 | dapm_mark_dirty(wsource, "Route added"); | |
2363 | dapm_mark_dirty(wsink, "Route added"); | |
2364 | ||
2b97eabc RP |
2365 | return 0; |
2366 | ||
2367 | err: | |
30a6a1a4 | 2368 | dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", |
f7d41ae8 | 2369 | source, control, sink); |
2b97eabc RP |
2370 | kfree(path); |
2371 | return ret; | |
2372 | } | |
105f1c28 | 2373 | |
efcc3c61 MB |
2374 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2375 | const struct snd_soc_dapm_route *route) | |
2376 | { | |
2377 | struct snd_soc_dapm_path *path, *p; | |
2378 | const char *sink; | |
2379 | const char *source; | |
2380 | char prefixed_sink[80]; | |
2381 | char prefixed_source[80]; | |
2382 | ||
2383 | if (route->control) { | |
2384 | dev_err(dapm->dev, | |
30a6a1a4 | 2385 | "ASoC: Removal of routes with controls not supported\n"); |
efcc3c61 MB |
2386 | return -EINVAL; |
2387 | } | |
2388 | ||
2389 | if (dapm->codec && dapm->codec->name_prefix) { | |
2390 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2391 | dapm->codec->name_prefix, route->sink); | |
2392 | sink = prefixed_sink; | |
2393 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2394 | dapm->codec->name_prefix, route->source); | |
2395 | source = prefixed_source; | |
2396 | } else { | |
2397 | sink = route->sink; | |
2398 | source = route->source; | |
2399 | } | |
2400 | ||
2401 | path = NULL; | |
2402 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2403 | if (strcmp(p->source->name, source) != 0) | |
2404 | continue; | |
2405 | if (strcmp(p->sink->name, sink) != 0) | |
2406 | continue; | |
2407 | path = p; | |
2408 | break; | |
2409 | } | |
2410 | ||
2411 | if (path) { | |
2412 | dapm_mark_dirty(path->source, "Route removed"); | |
2413 | dapm_mark_dirty(path->sink, "Route removed"); | |
2414 | ||
8872293f | 2415 | dapm_free_path(path); |
efcc3c61 | 2416 | } else { |
30a6a1a4 | 2417 | dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", |
efcc3c61 MB |
2418 | source, sink); |
2419 | } | |
2420 | ||
2421 | return 0; | |
2422 | } | |
2423 | ||
105f1c28 MB |
2424 | /** |
2425 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2426 | * @dapm: DAPM context |
105f1c28 MB |
2427 | * @route: audio routes |
2428 | * @num: number of routes | |
2429 | * | |
2430 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2431 | * the widget receiving the audio signal, whilst the source is the sender | |
2432 | * of the audio signal. | |
2433 | * | |
2434 | * Returns 0 for success else error. On error all resources can be freed | |
2435 | * with a call to snd_soc_card_free(). | |
2436 | */ | |
ce6120cc | 2437 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2438 | const struct snd_soc_dapm_route *route, int num) |
2439 | { | |
62d4a4b9 | 2440 | int i, r, ret = 0; |
105f1c28 | 2441 | |
a73fb2df | 2442 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2443 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2444 | r = snd_soc_dapm_add_route(dapm, route); |
2445 | if (r < 0) { | |
30a6a1a4 LG |
2446 | dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", |
2447 | route->source, | |
2448 | route->control ? route->control : "direct", | |
2449 | route->sink); | |
62d4a4b9 | 2450 | ret = r; |
105f1c28 MB |
2451 | } |
2452 | route++; | |
2453 | } | |
a73fb2df | 2454 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2455 | |
60884c27 | 2456 | return ret; |
105f1c28 MB |
2457 | } |
2458 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2459 | ||
efcc3c61 MB |
2460 | /** |
2461 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2462 | * @dapm: DAPM context | |
2463 | * @route: audio routes | |
2464 | * @num: number of routes | |
2465 | * | |
2466 | * Removes routes from the DAPM context. | |
2467 | */ | |
2468 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2469 | const struct snd_soc_dapm_route *route, int num) | |
2470 | { | |
2471 | int i, ret = 0; | |
2472 | ||
2473 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2474 | for (i = 0; i < num; i++) { | |
2475 | snd_soc_dapm_del_route(dapm, route); | |
2476 | route++; | |
2477 | } | |
2478 | mutex_unlock(&dapm->card->dapm_mutex); | |
2479 | ||
2480 | return ret; | |
2481 | } | |
2482 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2483 | ||
bf3a9e13 MB |
2484 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2485 | const struct snd_soc_dapm_route *route) | |
2486 | { | |
2487 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2488 | route->source, | |
2489 | true); | |
2490 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2491 | route->sink, | |
2492 | true); | |
2493 | struct snd_soc_dapm_path *path; | |
2494 | int count = 0; | |
2495 | ||
2496 | if (!source) { | |
30a6a1a4 | 2497 | dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", |
bf3a9e13 MB |
2498 | route->source); |
2499 | return -ENODEV; | |
2500 | } | |
2501 | ||
2502 | if (!sink) { | |
30a6a1a4 | 2503 | dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", |
bf3a9e13 MB |
2504 | route->sink); |
2505 | return -ENODEV; | |
2506 | } | |
2507 | ||
2508 | if (route->control || route->connected) | |
30a6a1a4 | 2509 | dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", |
bf3a9e13 MB |
2510 | route->source, route->sink); |
2511 | ||
2512 | list_for_each_entry(path, &source->sinks, list_source) { | |
2513 | if (path->sink == sink) { | |
2514 | path->weak = 1; | |
2515 | count++; | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | if (count == 0) | |
30a6a1a4 | 2520 | dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", |
bf3a9e13 MB |
2521 | route->source, route->sink); |
2522 | if (count > 1) | |
30a6a1a4 | 2523 | dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", |
bf3a9e13 MB |
2524 | count, route->source, route->sink); |
2525 | ||
2526 | return 0; | |
2527 | } | |
2528 | ||
2529 | /** | |
2530 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2531 | * @dapm: DAPM context | |
2532 | * @route: audio routes | |
2533 | * @num: number of routes | |
2534 | * | |
2535 | * Mark existing routes matching those specified in the passed array | |
2536 | * as being weak, meaning that they are ignored for the purpose of | |
2537 | * power decisions. The main intended use case is for sidetone paths | |
2538 | * which couple audio between other independent paths if they are both | |
2539 | * active in order to make the combination work better at the user | |
2540 | * level but which aren't intended to be "used". | |
2541 | * | |
2542 | * Note that CODEC drivers should not use this as sidetone type paths | |
2543 | * can frequently also be used as bypass paths. | |
2544 | */ | |
2545 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2546 | const struct snd_soc_dapm_route *route, int num) | |
2547 | { | |
2548 | int i, err; | |
2549 | int ret = 0; | |
2550 | ||
a73fb2df | 2551 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2552 | for (i = 0; i < num; i++) { |
2553 | err = snd_soc_dapm_weak_route(dapm, route); | |
2554 | if (err) | |
2555 | ret = err; | |
2556 | route++; | |
2557 | } | |
a73fb2df | 2558 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2559 | |
2560 | return ret; | |
2561 | } | |
2562 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2563 | ||
2b97eabc RP |
2564 | /** |
2565 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2566 | * @dapm: DAPM context |
2b97eabc RP |
2567 | * |
2568 | * Checks the codec for any new dapm widgets and creates them if found. | |
2569 | * | |
2570 | * Returns 0 for success. | |
2571 | */ | |
ce6120cc | 2572 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2573 | { |
2574 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2575 | unsigned int val; |
2b97eabc | 2576 | |
a73fb2df LG |
2577 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
2578 | ||
97c866de | 2579 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2580 | { |
2581 | if (w->new) | |
2582 | continue; | |
2583 | ||
fad59888 SW |
2584 | if (w->num_kcontrols) { |
2585 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2586 | sizeof(struct snd_kcontrol *), | |
2587 | GFP_KERNEL); | |
a73fb2df LG |
2588 | if (!w->kcontrols) { |
2589 | mutex_unlock(&dapm->card->dapm_mutex); | |
fad59888 | 2590 | return -ENOMEM; |
a73fb2df | 2591 | } |
fad59888 SW |
2592 | } |
2593 | ||
2b97eabc RP |
2594 | switch(w->id) { |
2595 | case snd_soc_dapm_switch: | |
2596 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2597 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2598 | dapm_new_mixer(w); |
2b97eabc RP |
2599 | break; |
2600 | case snd_soc_dapm_mux: | |
24ff33ac | 2601 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2602 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2603 | dapm_new_mux(w); |
2b97eabc | 2604 | break; |
2b97eabc | 2605 | case snd_soc_dapm_pga: |
d88429a6 | 2606 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2607 | dapm_new_pga(w); |
2b97eabc | 2608 | break; |
7ca3a18b | 2609 | default: |
2b97eabc RP |
2610 | break; |
2611 | } | |
b66a70d5 MB |
2612 | |
2613 | /* Read the initial power state from the device */ | |
2614 | if (w->reg >= 0) { | |
0445bdf4 | 2615 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2616 | val &= 1 << w->shift; |
2617 | if (w->invert) | |
2618 | val = !val; | |
2619 | ||
2620 | if (val) | |
2621 | w->power = 1; | |
2622 | } | |
2623 | ||
2b97eabc | 2624 | w->new = 1; |
d5d1e0be | 2625 | |
7508b12a | 2626 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2627 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2628 | } |
2629 | ||
ce6120cc | 2630 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df | 2631 | mutex_unlock(&dapm->card->dapm_mutex); |
2b97eabc RP |
2632 | return 0; |
2633 | } | |
2634 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2635 | ||
2636 | /** | |
2637 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2638 | * @kcontrol: mixer control | |
ac11a2b3 | 2639 | * @ucontrol: control element information |
2b97eabc RP |
2640 | * |
2641 | * Callback to get the value of a dapm mixer control. | |
2642 | * | |
2643 | * Returns 0 for success. | |
2644 | */ | |
2645 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2646 | struct snd_ctl_elem_value *ucontrol) | |
2647 | { | |
fafd2176 SW |
2648 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2649 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2650 | struct soc_mixer_control *mc = |
2651 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2652 | unsigned int reg = mc->reg; |
2653 | unsigned int shift = mc->shift; | |
4eaa9819 | 2654 | int max = mc->max; |
815ecf8d | 2655 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 BT |
2656 | unsigned int invert = mc->invert; |
2657 | ||
2658 | if (snd_soc_volsw_is_stereo(mc)) | |
2659 | dev_warn(widget->dapm->dev, | |
30a6a1a4 | 2660 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 | 2661 | kcontrol->id.name); |
2b97eabc | 2662 | |
2b97eabc RP |
2663 | ucontrol->value.integer.value[0] = |
2664 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
da602ab8 | 2665 | if (invert) |
2b97eabc | 2666 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2667 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2668 | |
2669 | return 0; | |
2670 | } | |
2671 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2672 | ||
2673 | /** | |
2674 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2675 | * @kcontrol: mixer control | |
ac11a2b3 | 2676 | * @ucontrol: control element information |
2b97eabc RP |
2677 | * |
2678 | * Callback to set the value of a dapm mixer control. | |
2679 | * | |
2680 | * Returns 0 for success. | |
2681 | */ | |
2682 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2683 | struct snd_ctl_elem_value *ucontrol) | |
2684 | { | |
fafd2176 SW |
2685 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2686 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2687 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2688 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2689 | struct soc_mixer_control *mc = |
2690 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2691 | unsigned int reg = mc->reg; |
2692 | unsigned int shift = mc->shift; | |
4eaa9819 | 2693 | int max = mc->max; |
815ecf8d JS |
2694 | unsigned int mask = (1 << fls(max)) - 1; |
2695 | unsigned int invert = mc->invert; | |
e9cf7049 | 2696 | unsigned int val; |
97404f2e MB |
2697 | int connect, change; |
2698 | struct snd_soc_dapm_update update; | |
fafd2176 | 2699 | int wi; |
2b97eabc | 2700 | |
da602ab8 BT |
2701 | if (snd_soc_volsw_is_stereo(mc)) |
2702 | dev_warn(widget->dapm->dev, | |
30a6a1a4 | 2703 | "ASoC: Control '%s' is stereo, which is not supported\n", |
da602ab8 BT |
2704 | kcontrol->id.name); |
2705 | ||
2b97eabc | 2706 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2707 | connect = !!val; |
2b97eabc RP |
2708 | |
2709 | if (invert) | |
a7a4ac86 | 2710 | val = max - val; |
e9cf7049 | 2711 | mask = mask << shift; |
2b97eabc | 2712 | val = val << shift; |
2b97eabc | 2713 | |
3cd04343 | 2714 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2715 | |
e9cf7049 | 2716 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2717 | if (change) { |
fafd2176 SW |
2718 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2719 | widget = wlist->widgets[wi]; | |
283375ce | 2720 | |
fafd2176 | 2721 | widget->value = val; |
97404f2e | 2722 | |
fafd2176 SW |
2723 | update.kcontrol = kcontrol; |
2724 | update.widget = widget; | |
2725 | update.reg = reg; | |
2726 | update.mask = mask; | |
2727 | update.val = val; | |
2728 | widget->dapm->update = &update; | |
97404f2e | 2729 | |
4edbb345 | 2730 | soc_dapm_mixer_update_power(widget, kcontrol, connect); |
fafd2176 SW |
2731 | |
2732 | widget->dapm->update = NULL; | |
2733 | } | |
283375ce MB |
2734 | } |
2735 | ||
a73fb2df | 2736 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 2737 | return change; |
2b97eabc RP |
2738 | } |
2739 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2740 | ||
2741 | /** | |
2742 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2743 | * @kcontrol: mixer control | |
ac11a2b3 | 2744 | * @ucontrol: control element information |
2b97eabc RP |
2745 | * |
2746 | * Callback to get the value of a dapm enumerated double mixer control. | |
2747 | * | |
2748 | * Returns 0 for success. | |
2749 | */ | |
2750 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2751 | struct snd_ctl_elem_value *ucontrol) | |
2752 | { | |
fafd2176 SW |
2753 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2754 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2755 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
86767b7d | 2756 | unsigned int val; |
2b97eabc | 2757 | |
2b97eabc | 2758 | val = snd_soc_read(widget->codec, e->reg); |
86767b7d | 2759 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask; |
2b97eabc RP |
2760 | if (e->shift_l != e->shift_r) |
2761 | ucontrol->value.enumerated.item[1] = | |
86767b7d | 2762 | (val >> e->shift_r) & e->mask; |
2b97eabc RP |
2763 | |
2764 | return 0; | |
2765 | } | |
2766 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2767 | ||
2768 | /** | |
2769 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2770 | * @kcontrol: mixer control | |
ac11a2b3 | 2771 | * @ucontrol: control element information |
2b97eabc RP |
2772 | * |
2773 | * Callback to set the value of a dapm enumerated double mixer control. | |
2774 | * | |
2775 | * Returns 0 for success. | |
2776 | */ | |
2777 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2778 | struct snd_ctl_elem_value *ucontrol) | |
2779 | { | |
fafd2176 SW |
2780 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2781 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2782 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2783 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2784 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2785 | unsigned int val, mux, change; |
86767b7d | 2786 | unsigned int mask; |
97404f2e | 2787 | struct snd_soc_dapm_update update; |
fafd2176 | 2788 | int wi; |
2b97eabc | 2789 | |
f8ba0b7b | 2790 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2791 | return -EINVAL; |
2792 | mux = ucontrol->value.enumerated.item[0]; | |
2793 | val = mux << e->shift_l; | |
86767b7d | 2794 | mask = e->mask << e->shift_l; |
2b97eabc | 2795 | if (e->shift_l != e->shift_r) { |
f8ba0b7b | 2796 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2797 | return -EINVAL; |
2798 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
86767b7d | 2799 | mask |= e->mask << e->shift_r; |
2b97eabc RP |
2800 | } |
2801 | ||
3cd04343 | 2802 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2803 | |
3a65577d | 2804 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2805 | if (change) { |
2806 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2807 | widget = wlist->widgets[wi]; | |
2808 | ||
2809 | widget->value = val; | |
1642e3d4 | 2810 | |
fafd2176 SW |
2811 | update.kcontrol = kcontrol; |
2812 | update.widget = widget; | |
2813 | update.reg = e->reg; | |
2814 | update.mask = mask; | |
2815 | update.val = val; | |
2816 | widget->dapm->update = &update; | |
1642e3d4 | 2817 | |
4edbb345 | 2818 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1642e3d4 | 2819 | |
fafd2176 SW |
2820 | widget->dapm->update = NULL; |
2821 | } | |
2822 | } | |
2b97eabc | 2823 | |
a73fb2df | 2824 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2825 | return change; |
2b97eabc RP |
2826 | } |
2827 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2828 | ||
d2b247a8 MB |
2829 | /** |
2830 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2831 | * @kcontrol: mixer control | |
2832 | * @ucontrol: control element information | |
2833 | * | |
2834 | * Returns 0 for success. | |
2835 | */ | |
2836 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2837 | struct snd_ctl_elem_value *ucontrol) | |
2838 | { | |
fafd2176 SW |
2839 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2840 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2841 | |
2842 | ucontrol->value.enumerated.item[0] = widget->value; | |
2843 | ||
2844 | return 0; | |
2845 | } | |
2846 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2847 | ||
2848 | /** | |
2849 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2850 | * @kcontrol: mixer control | |
2851 | * @ucontrol: control element information | |
2852 | * | |
2853 | * Returns 0 for success. | |
2854 | */ | |
2855 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2856 | struct snd_ctl_elem_value *ucontrol) | |
2857 | { | |
fafd2176 SW |
2858 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2859 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2860 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2861 | struct snd_soc_card *card = codec->card; |
d2b247a8 MB |
2862 | struct soc_enum *e = |
2863 | (struct soc_enum *)kcontrol->private_value; | |
2864 | int change; | |
fafd2176 | 2865 | int wi; |
d2b247a8 MB |
2866 | |
2867 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2868 | return -EINVAL; | |
2869 | ||
3cd04343 | 2870 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 MB |
2871 | |
2872 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2873 | if (change) { |
2874 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2875 | widget = wlist->widgets[wi]; | |
2876 | ||
2877 | widget->value = ucontrol->value.enumerated.item[0]; | |
2878 | ||
4edbb345 | 2879 | soc_dapm_mux_update_power(widget, kcontrol, widget->value, e); |
fafd2176 SW |
2880 | } |
2881 | } | |
d2b247a8 | 2882 | |
a73fb2df | 2883 | mutex_unlock(&card->dapm_mutex); |
56a67834 | 2884 | return change; |
d2b247a8 MB |
2885 | } |
2886 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2887 | ||
2e72f8e3 PU |
2888 | /** |
2889 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2890 | * callback | |
2891 | * @kcontrol: mixer control | |
2892 | * @ucontrol: control element information | |
2893 | * | |
2894 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2895 | * | |
2896 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2897 | * used for handling bitfield coded enumeration for example. | |
2898 | * | |
2899 | * Returns 0 for success. | |
2900 | */ | |
2901 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2902 | struct snd_ctl_elem_value *ucontrol) | |
2903 | { | |
fafd2176 SW |
2904 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2905 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2906 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2907 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2908 | |
2909 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2910 | val = (reg_val >> e->shift_l) & e->mask; | |
2911 | for (mux = 0; mux < e->max; mux++) { | |
2912 | if (val == e->values[mux]) | |
2913 | break; | |
2914 | } | |
2915 | ucontrol->value.enumerated.item[0] = mux; | |
2916 | if (e->shift_l != e->shift_r) { | |
2917 | val = (reg_val >> e->shift_r) & e->mask; | |
2918 | for (mux = 0; mux < e->max; mux++) { | |
2919 | if (val == e->values[mux]) | |
2920 | break; | |
2921 | } | |
2922 | ucontrol->value.enumerated.item[1] = mux; | |
2923 | } | |
2924 | ||
2925 | return 0; | |
2926 | } | |
2927 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2928 | ||
2929 | /** | |
2930 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2931 | * callback | |
2932 | * @kcontrol: mixer control | |
2933 | * @ucontrol: control element information | |
2934 | * | |
2935 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2936 | * | |
2937 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2938 | * used for handling bitfield coded enumeration for example. | |
2939 | * | |
2940 | * Returns 0 for success. | |
2941 | */ | |
2942 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2943 | struct snd_ctl_elem_value *ucontrol) | |
2944 | { | |
fafd2176 SW |
2945 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2946 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2947 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2948 | struct snd_soc_card *card = codec->card; |
74155556 | 2949 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2950 | unsigned int val, mux, change; |
46f5822f | 2951 | unsigned int mask; |
97404f2e | 2952 | struct snd_soc_dapm_update update; |
fafd2176 | 2953 | int wi; |
2e72f8e3 PU |
2954 | |
2955 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2956 | return -EINVAL; | |
2957 | mux = ucontrol->value.enumerated.item[0]; | |
2958 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2959 | mask = e->mask << e->shift_l; | |
2960 | if (e->shift_l != e->shift_r) { | |
2961 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2962 | return -EINVAL; | |
2963 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2964 | mask |= e->mask << e->shift_r; | |
2965 | } | |
2966 | ||
3cd04343 | 2967 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2968 | |
3a65577d | 2969 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2970 | if (change) { |
2971 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2972 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2973 | |
fafd2176 | 2974 | widget->value = val; |
1642e3d4 | 2975 | |
fafd2176 SW |
2976 | update.kcontrol = kcontrol; |
2977 | update.widget = widget; | |
2978 | update.reg = e->reg; | |
2979 | update.mask = mask; | |
2980 | update.val = val; | |
2981 | widget->dapm->update = &update; | |
1642e3d4 | 2982 | |
4edbb345 | 2983 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
fafd2176 SW |
2984 | |
2985 | widget->dapm->update = NULL; | |
2986 | } | |
2987 | } | |
2e72f8e3 | 2988 | |
a73fb2df | 2989 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2990 | return change; |
2e72f8e3 PU |
2991 | } |
2992 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2993 | ||
8b37dbd2 MB |
2994 | /** |
2995 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2996 | * | |
2997 | * @kcontrol: mixer control | |
2998 | * @uinfo: control element information | |
2999 | * | |
3000 | * Callback to provide information about a pin switch control. | |
3001 | */ | |
3002 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
3003 | struct snd_ctl_elem_info *uinfo) | |
3004 | { | |
3005 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
3006 | uinfo->count = 1; | |
3007 | uinfo->value.integer.min = 0; | |
3008 | uinfo->value.integer.max = 1; | |
3009 | ||
3010 | return 0; | |
3011 | } | |
3012 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
3013 | ||
3014 | /** | |
3015 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
3016 | * | |
3017 | * @kcontrol: mixer control | |
3018 | * @ucontrol: Value | |
3019 | */ | |
3020 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
3021 | struct snd_ctl_elem_value *ucontrol) | |
3022 | { | |
48a8c394 | 3023 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3024 | const char *pin = (const char *)kcontrol->private_value; |
3025 | ||
3cd04343 | 3026 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3027 | |
3028 | ucontrol->value.integer.value[0] = | |
48a8c394 | 3029 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 3030 | |
a73fb2df | 3031 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
3032 | |
3033 | return 0; | |
3034 | } | |
3035 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
3036 | ||
3037 | /** | |
3038 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
3039 | * | |
3040 | * @kcontrol: mixer control | |
3041 | * @ucontrol: Value | |
3042 | */ | |
3043 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
3044 | struct snd_ctl_elem_value *ucontrol) | |
3045 | { | |
48a8c394 | 3046 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
3047 | const char *pin = (const char *)kcontrol->private_value; |
3048 | ||
3cd04343 | 3049 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
3050 | |
3051 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 3052 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 3053 | else |
48a8c394 | 3054 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 3055 | |
a73fb2df | 3056 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 3057 | |
a73fb2df | 3058 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
3059 | return 0; |
3060 | } | |
3061 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
3062 | ||
5ba06fc9 MB |
3063 | static struct snd_soc_dapm_widget * |
3064 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
3065 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
3066 | { |
3067 | struct snd_soc_dapm_widget *w; | |
62ea874a | 3068 | int ret; |
2b97eabc RP |
3069 | |
3070 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3071 | return NULL; |
2b97eabc | 3072 | |
62ea874a MB |
3073 | switch (w->id) { |
3074 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3075 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3076 | if (IS_ERR(w->regulator)) { | |
3077 | ret = PTR_ERR(w->regulator); | |
30a6a1a4 | 3078 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
62ea874a | 3079 | w->name, ret); |
5ba06fc9 | 3080 | return NULL; |
62ea874a | 3081 | } |
8784c77a MB |
3082 | |
3083 | if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) { | |
3084 | ret = regulator_allow_bypass(w->regulator, true); | |
3085 | if (ret != 0) | |
3086 | dev_warn(w->dapm->dev, | |
3087 | "ASoC: Failed to unbypass %s: %d\n", | |
3088 | w->name, ret); | |
3089 | } | |
62ea874a | 3090 | break; |
d7e7eb91 | 3091 | case snd_soc_dapm_clock_supply: |
165961ef | 3092 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3093 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3094 | if (IS_ERR(w->clk)) { |
3095 | ret = PTR_ERR(w->clk); | |
30a6a1a4 | 3096 | dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", |
d7e7eb91 OL |
3097 | w->name, ret); |
3098 | return NULL; | |
3099 | } | |
ec02995a MB |
3100 | #else |
3101 | return NULL; | |
3102 | #endif | |
d7e7eb91 | 3103 | break; |
62ea874a MB |
3104 | default: |
3105 | break; | |
3106 | } | |
2b97eabc | 3107 | |
88e8b9a8 | 3108 | if (dapm->codec && dapm->codec->name_prefix) |
2b581074 LPC |
3109 | w->name = kasprintf(GFP_KERNEL, "%s %s", |
3110 | dapm->codec->name_prefix, widget->name); | |
3111 | else | |
3112 | w->name = kasprintf(GFP_KERNEL, "%s", widget->name); | |
3113 | ||
ead9b919 JN |
3114 | if (w->name == NULL) { |
3115 | kfree(w); | |
5ba06fc9 | 3116 | return NULL; |
ead9b919 | 3117 | } |
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: | |
4616274d | 3132 | case snd_soc_dapm_dai_out: |
7ca3a18b MB |
3133 | w->power_check = dapm_adc_check_power; |
3134 | break; | |
3135 | case snd_soc_dapm_dac: | |
3136 | case snd_soc_dapm_aif_in: | |
4616274d | 3137 | case snd_soc_dapm_dai_in: |
7ca3a18b MB |
3138 | w->power_check = dapm_dac_check_power; |
3139 | break; | |
3140 | case snd_soc_dapm_pga: | |
3141 | case snd_soc_dapm_out_drv: | |
3142 | case snd_soc_dapm_input: | |
3143 | case snd_soc_dapm_output: | |
3144 | case snd_soc_dapm_micbias: | |
3145 | case snd_soc_dapm_spk: | |
3146 | case snd_soc_dapm_hp: | |
3147 | case snd_soc_dapm_mic: | |
3148 | case snd_soc_dapm_line: | |
c74184ed | 3149 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3150 | w->power_check = dapm_generic_check_power; |
3151 | break; | |
3152 | case snd_soc_dapm_supply: | |
62ea874a | 3153 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3154 | case snd_soc_dapm_clock_supply: |
7ca3a18b MB |
3155 | w->power_check = dapm_supply_check_power; |
3156 | break; | |
3157 | default: | |
3158 | w->power_check = dapm_always_on_check_power; | |
3159 | break; | |
3160 | } | |
3161 | ||
ce6120cc LG |
3162 | w->dapm = dapm; |
3163 | w->codec = dapm->codec; | |
b7950641 | 3164 | w->platform = dapm->platform; |
2b97eabc RP |
3165 | INIT_LIST_HEAD(&w->sources); |
3166 | INIT_LIST_HEAD(&w->sinks); | |
3167 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3168 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3169 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3170 | |
3171 | /* machine layer set ups unconnected pins and insertions */ | |
3172 | w->connected = 1; | |
5ba06fc9 | 3173 | return w; |
2b97eabc | 3174 | } |
2b97eabc | 3175 | |
4ba1327a MB |
3176 | /** |
3177 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3178 | * @dapm: DAPM context |
4ba1327a MB |
3179 | * @widget: widget array |
3180 | * @num: number of widgets | |
3181 | * | |
3182 | * Creates new DAPM controls based upon the templates. | |
3183 | * | |
3184 | * Returns 0 for success else error. | |
3185 | */ | |
ce6120cc | 3186 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3187 | const struct snd_soc_dapm_widget *widget, |
3188 | int num) | |
3189 | { | |
5ba06fc9 MB |
3190 | struct snd_soc_dapm_widget *w; |
3191 | int i; | |
60884c27 | 3192 | int ret = 0; |
4ba1327a | 3193 | |
a73fb2df | 3194 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3195 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3196 | w = snd_soc_dapm_new_control(dapm, widget); |
3197 | if (!w) { | |
f7d41ae8 | 3198 | dev_err(dapm->dev, |
5ba06fc9 MB |
3199 | "ASoC: Failed to create DAPM control %s\n", |
3200 | widget->name); | |
60884c27 DC |
3201 | ret = -ENOMEM; |
3202 | break; | |
b8b33cb5 | 3203 | } |
4ba1327a MB |
3204 | widget++; |
3205 | } | |
a73fb2df | 3206 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3207 | return ret; |
4ba1327a MB |
3208 | } |
3209 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3210 | ||
c74184ed MB |
3211 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3212 | struct snd_kcontrol *kcontrol, int event) | |
3213 | { | |
3214 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3215 | struct snd_soc_dai *source, *sink; | |
3216 | const struct snd_soc_pcm_stream *config = w->params; | |
3217 | struct snd_pcm_substream substream; | |
9747cec2 | 3218 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3219 | u64 fmt; |
3220 | int ret; | |
3221 | ||
3222 | BUG_ON(!config); | |
3223 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3224 | ||
3225 | /* We only support a single source and sink, pick the first */ | |
3226 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3227 | list_sink); | |
3228 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3229 | list_source); | |
3230 | ||
3231 | BUG_ON(!source_p || !sink_p); | |
3232 | BUG_ON(!sink_p->source || !source_p->sink); | |
3233 | BUG_ON(!source_p->source || !sink_p->sink); | |
3234 | ||
3235 | source = source_p->source->priv; | |
3236 | sink = sink_p->sink->priv; | |
3237 | ||
3238 | /* Be a little careful as we don't want to overflow the mask array */ | |
3239 | if (config->formats) { | |
3240 | fmt = ffs(config->formats) - 1; | |
3241 | } else { | |
30a6a1a4 | 3242 | dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", |
c74184ed MB |
3243 | config->formats); |
3244 | fmt = 0; | |
3245 | } | |
3246 | ||
3247 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3248 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3249 | if (!params) { | |
3250 | ret = -ENOMEM; | |
3251 | goto out; | |
3252 | } | |
3253 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3254 | |
9747cec2 | 3255 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3256 | config->rate_min; |
9747cec2 | 3257 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3258 | config->rate_max; |
3259 | ||
9747cec2 | 3260 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3261 | = config->channels_min; |
9747cec2 | 3262 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3263 | = config->channels_max; |
3264 | ||
3265 | memset(&substream, 0, sizeof(substream)); | |
3266 | ||
3267 | switch (event) { | |
3268 | case SND_SOC_DAPM_PRE_PMU: | |
3269 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3270 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3271 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3272 | params, source); |
c74184ed MB |
3273 | if (ret != 0) { |
3274 | dev_err(source->dev, | |
30a6a1a4 | 3275 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3276 | goto out; |
c74184ed MB |
3277 | } |
3278 | } | |
3279 | ||
3280 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3281 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3282 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3283 | sink); |
3284 | if (ret != 0) { | |
3285 | dev_err(sink->dev, | |
30a6a1a4 | 3286 | "ASoC: hw_params() failed: %d\n", ret); |
9747cec2 | 3287 | goto out; |
c74184ed MB |
3288 | } |
3289 | } | |
3290 | break; | |
3291 | ||
3292 | case SND_SOC_DAPM_POST_PMU: | |
da18396f MB |
3293 | ret = snd_soc_dai_digital_mute(sink, 0, |
3294 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3295 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3296 | dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); |
9747cec2 | 3297 | ret = 0; |
c74184ed MB |
3298 | break; |
3299 | ||
3300 | case SND_SOC_DAPM_PRE_PMD: | |
da18396f MB |
3301 | ret = snd_soc_dai_digital_mute(sink, 1, |
3302 | SNDRV_PCM_STREAM_PLAYBACK); | |
c74184ed | 3303 | if (ret != 0 && ret != -ENOTSUPP) |
30a6a1a4 | 3304 | dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); |
9747cec2 | 3305 | ret = 0; |
c74184ed MB |
3306 | break; |
3307 | ||
3308 | default: | |
3309 | BUG(); | |
3310 | return -EINVAL; | |
3311 | } | |
3312 | ||
9747cec2 MB |
3313 | out: |
3314 | kfree(params); | |
3315 | return ret; | |
c74184ed MB |
3316 | } |
3317 | ||
3318 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3319 | const struct snd_soc_pcm_stream *params, | |
3320 | struct snd_soc_dapm_widget *source, | |
3321 | struct snd_soc_dapm_widget *sink) | |
3322 | { | |
3323 | struct snd_soc_dapm_route routes[2]; | |
3324 | struct snd_soc_dapm_widget template; | |
3325 | struct snd_soc_dapm_widget *w; | |
3326 | size_t len; | |
3327 | char *link_name; | |
3328 | ||
3329 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3330 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3331 | if (!link_name) | |
3332 | return -ENOMEM; | |
3333 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3334 | ||
3335 | memset(&template, 0, sizeof(template)); | |
3336 | template.reg = SND_SOC_NOPM; | |
3337 | template.id = snd_soc_dapm_dai_link; | |
3338 | template.name = link_name; | |
3339 | template.event = snd_soc_dai_link_event; | |
3340 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3341 | SND_SOC_DAPM_PRE_PMD; | |
3342 | ||
30a6a1a4 | 3343 | dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); |
c74184ed MB |
3344 | |
3345 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3346 | if (!w) { | |
30a6a1a4 | 3347 | dev_err(card->dev, "ASoC: Failed to create %s widget\n", |
c74184ed MB |
3348 | link_name); |
3349 | return -ENOMEM; | |
3350 | } | |
3351 | ||
3352 | w->params = params; | |
3353 | ||
3354 | memset(&routes, 0, sizeof(routes)); | |
3355 | ||
3356 | routes[0].source = source->name; | |
3357 | routes[0].sink = link_name; | |
3358 | routes[1].source = link_name; | |
3359 | routes[1].sink = sink->name; | |
3360 | ||
3361 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3362 | ARRAY_SIZE(routes)); | |
3363 | } | |
3364 | ||
888df395 MB |
3365 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3366 | struct snd_soc_dai *dai) | |
2b97eabc | 3367 | { |
888df395 | 3368 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3369 | struct snd_soc_dapm_widget *w; |
3370 | ||
888df395 MB |
3371 | WARN_ON(dapm->dev != dai->dev); |
3372 | ||
3373 | memset(&template, 0, sizeof(template)); | |
3374 | template.reg = SND_SOC_NOPM; | |
3375 | ||
3376 | if (dai->driver->playback.stream_name) { | |
4616274d | 3377 | template.id = snd_soc_dapm_dai_in; |
888df395 MB |
3378 | template.name = dai->driver->playback.stream_name; |
3379 | template.sname = dai->driver->playback.stream_name; | |
3380 | ||
30a6a1a4 | 3381 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3382 | template.name); |
3383 | ||
3384 | w = snd_soc_dapm_new_control(dapm, &template); | |
3385 | if (!w) { | |
30a6a1a4 | 3386 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3387 | dai->driver->playback.stream_name); |
3388 | } | |
3389 | ||
3390 | w->priv = dai; | |
3391 | dai->playback_widget = w; | |
3392 | } | |
3393 | ||
3394 | if (dai->driver->capture.stream_name) { | |
4616274d | 3395 | template.id = snd_soc_dapm_dai_out; |
888df395 MB |
3396 | template.name = dai->driver->capture.stream_name; |
3397 | template.sname = dai->driver->capture.stream_name; | |
3398 | ||
30a6a1a4 | 3399 | dev_dbg(dai->dev, "ASoC: adding %s widget\n", |
888df395 MB |
3400 | template.name); |
3401 | ||
3402 | w = snd_soc_dapm_new_control(dapm, &template); | |
3403 | if (!w) { | |
30a6a1a4 | 3404 | dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", |
888df395 MB |
3405 | dai->driver->capture.stream_name); |
3406 | } | |
3407 | ||
3408 | w->priv = dai; | |
3409 | dai->capture_widget = w; | |
3410 | } | |
3411 | ||
3412 | return 0; | |
3413 | } | |
3414 | ||
3415 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3416 | { | |
3417 | struct snd_soc_dapm_widget *dai_w, *w; | |
3418 | struct snd_soc_dai *dai; | |
3419 | struct snd_soc_dapm_route r; | |
3420 | ||
3421 | memset(&r, 0, sizeof(r)); | |
3422 | ||
3423 | /* For each DAI widget... */ | |
3424 | list_for_each_entry(dai_w, &card->widgets, list) { | |
4616274d MB |
3425 | switch (dai_w->id) { |
3426 | case snd_soc_dapm_dai_in: | |
3427 | case snd_soc_dapm_dai_out: | |
3428 | break; | |
3429 | default: | |
2b97eabc | 3430 | continue; |
4616274d | 3431 | } |
888df395 MB |
3432 | |
3433 | dai = dai_w->priv; | |
3434 | ||
3435 | /* ...find all widgets with the same stream and link them */ | |
3436 | list_for_each_entry(w, &card->widgets, list) { | |
3437 | if (w->dapm != dai_w->dapm) | |
3438 | continue; | |
3439 | ||
4616274d MB |
3440 | switch (w->id) { |
3441 | case snd_soc_dapm_dai_in: | |
3442 | case snd_soc_dapm_dai_out: | |
888df395 | 3443 | continue; |
4616274d MB |
3444 | default: |
3445 | break; | |
3446 | } | |
888df395 MB |
3447 | |
3448 | if (!w->sname) | |
3449 | continue; | |
3450 | ||
3451 | if (dai->driver->playback.stream_name && | |
3452 | strstr(w->sname, | |
3453 | dai->driver->playback.stream_name)) { | |
3454 | r.source = dai->playback_widget->name; | |
3455 | r.sink = w->name; | |
3456 | dev_dbg(dai->dev, "%s -> %s\n", | |
3457 | r.source, r.sink); | |
3458 | ||
3459 | snd_soc_dapm_add_route(w->dapm, &r); | |
3460 | } | |
3461 | ||
3462 | if (dai->driver->capture.stream_name && | |
3463 | strstr(w->sname, | |
3464 | dai->driver->capture.stream_name)) { | |
3465 | r.source = w->name; | |
3466 | r.sink = dai->capture_widget->name; | |
3467 | dev_dbg(dai->dev, "%s -> %s\n", | |
3468 | r.source, r.sink); | |
3469 | ||
3470 | snd_soc_dapm_add_route(w->dapm, &r); | |
2b97eabc RP |
3471 | } |
3472 | } | |
3473 | } | |
2b97eabc | 3474 | |
888df395 MB |
3475 | return 0; |
3476 | } | |
64a648c2 | 3477 | |
d9b0951b LG |
3478 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3479 | int event) | |
2b97eabc | 3480 | { |
7bd3a6f3 | 3481 | |
d9b0951b LG |
3482 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3483 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3484 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3485 | |
d9b0951b LG |
3486 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3487 | w_cpu = cpu_dai->playback_widget; | |
3488 | w_codec = codec_dai->playback_widget; | |
3489 | } else { | |
3490 | w_cpu = cpu_dai->capture_widget; | |
3491 | w_codec = codec_dai->capture_widget; | |
3492 | } | |
2b97eabc | 3493 | |
d9b0951b | 3494 | if (w_cpu) { |
fe360685 | 3495 | |
d9b0951b LG |
3496 | dapm_mark_dirty(w_cpu, "stream event"); |
3497 | ||
3498 | switch (event) { | |
3499 | case SND_SOC_DAPM_STREAM_START: | |
3500 | w_cpu->active = 1; | |
3501 | break; | |
3502 | case SND_SOC_DAPM_STREAM_STOP: | |
3503 | w_cpu->active = 0; | |
3504 | break; | |
3505 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3506 | case SND_SOC_DAPM_STREAM_RESUME: | |
3507 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3508 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3509 | break; | |
3510 | } | |
3511 | } | |
3512 | ||
3513 | if (w_codec) { | |
3514 | ||
3515 | dapm_mark_dirty(w_codec, "stream event"); | |
3516 | ||
3517 | switch (event) { | |
3518 | case SND_SOC_DAPM_STREAM_START: | |
3519 | w_codec->active = 1; | |
3520 | break; | |
3521 | case SND_SOC_DAPM_STREAM_STOP: | |
3522 | w_codec->active = 0; | |
3523 | break; | |
3524 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3525 | case SND_SOC_DAPM_STREAM_RESUME: | |
3526 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3527 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3528 | break; | |
3529 | } | |
2b97eabc | 3530 | } |
2b97eabc | 3531 | |
d9b0951b | 3532 | dapm_power_widgets(&rtd->card->dapm, event); |
ce6120cc LG |
3533 | } |
3534 | ||
3535 | /** | |
3536 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3537 | * @rtd: PCM runtime data | |
3538 | * @stream: stream name | |
3539 | * @event: stream event | |
3540 | * | |
3541 | * Sends a stream event to the dapm core. The core then makes any | |
3542 | * necessary widget power changes. | |
3543 | * | |
3544 | * Returns 0 for success else error. | |
3545 | */ | |
d9b0951b LG |
3546 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3547 | int event) | |
ce6120cc | 3548 | { |
a73fb2df | 3549 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3550 | |
3cd04343 | 3551 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3552 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3553 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3554 | } |
2b97eabc RP |
3555 | |
3556 | /** | |
a5302181 | 3557 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3558 | * @dapm: DAPM context |
a5302181 | 3559 | * @pin: pin name |
2b97eabc | 3560 | * |
74b8f955 | 3561 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3562 | * a valid audio route and active audio stream. |
3563 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3564 | * do any widget power switching. | |
2b97eabc | 3565 | */ |
ce6120cc | 3566 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3567 | { |
ce6120cc | 3568 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3569 | } |
3570 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3571 | |
da34183e MB |
3572 | /** |
3573 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3574 | * @dapm: DAPM context |
da34183e MB |
3575 | * @pin: pin name |
3576 | * | |
3577 | * Enables input/output pin regardless of any other state. This is | |
3578 | * intended for use with microphone bias supplies used in microphone | |
3579 | * jack detection. | |
3580 | * | |
3581 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3582 | * do any widget power switching. | |
3583 | */ | |
ce6120cc LG |
3584 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3585 | const char *pin) | |
da34183e | 3586 | { |
91a5fca4 | 3587 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3588 | |
91a5fca4 | 3589 | if (!w) { |
30a6a1a4 | 3590 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3591 | return -EINVAL; |
0d86733c MB |
3592 | } |
3593 | ||
30a6a1a4 | 3594 | dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); |
91a5fca4 LPC |
3595 | w->connected = 1; |
3596 | w->force = 1; | |
75c1f891 | 3597 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3598 | |
91a5fca4 | 3599 | return 0; |
da34183e MB |
3600 | } |
3601 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3602 | ||
a5302181 LG |
3603 | /** |
3604 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3605 | * @dapm: DAPM context |
a5302181 LG |
3606 | * @pin: pin name |
3607 | * | |
74b8f955 | 3608 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3609 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3610 | * do any widget power switching. | |
3611 | */ | |
ce6120cc LG |
3612 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3613 | const char *pin) | |
a5302181 | 3614 | { |
ce6120cc | 3615 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3616 | } |
a5302181 | 3617 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3618 | |
5817b52a MB |
3619 | /** |
3620 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3621 | * @dapm: DAPM context |
5817b52a MB |
3622 | * @pin: pin name |
3623 | * | |
3624 | * Marks the specified pin as being not connected, disabling it along | |
3625 | * any parent or child widgets. At present this is identical to | |
3626 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3627 | * additional things such as disabling controls which only affect | |
3628 | * paths through the pin. | |
3629 | * | |
3630 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3631 | * do any widget power switching. | |
3632 | */ | |
ce6120cc | 3633 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3634 | { |
ce6120cc | 3635 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3636 | } |
3637 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3638 | ||
eeec12bf | 3639 | /** |
a5302181 | 3640 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3641 | * @dapm: DAPM context |
a5302181 | 3642 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3643 | * |
a5302181 | 3644 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3645 | * |
a5302181 | 3646 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3647 | */ |
ce6120cc LG |
3648 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3649 | const char *pin) | |
eeec12bf | 3650 | { |
91a5fca4 | 3651 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3652 | |
91a5fca4 LPC |
3653 | if (w) |
3654 | return w->connected; | |
a68b38ad | 3655 | |
eeec12bf GG |
3656 | return 0; |
3657 | } | |
a5302181 | 3658 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3659 | |
1547aba9 MB |
3660 | /** |
3661 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3662 | * @dapm: DAPM context |
1547aba9 MB |
3663 | * @pin: audio signal pin endpoint (or start point) |
3664 | * | |
3665 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3666 | * system is disabled a path between two endpoints flagged as ignoring | |
3667 | * suspend will not be disabled. The path must already be enabled via | |
3668 | * normal means at suspend time, it will not be turned on if it was not | |
3669 | * already enabled. | |
3670 | */ | |
ce6120cc LG |
3671 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3672 | const char *pin) | |
1547aba9 | 3673 | { |
91a5fca4 | 3674 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3675 | |
91a5fca4 | 3676 | if (!w) { |
30a6a1a4 | 3677 | dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); |
91a5fca4 | 3678 | return -EINVAL; |
1547aba9 MB |
3679 | } |
3680 | ||
91a5fca4 LPC |
3681 | w->ignore_suspend = 1; |
3682 | ||
3683 | return 0; | |
1547aba9 MB |
3684 | } |
3685 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3686 | ||
1633281b SW |
3687 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3688 | struct snd_soc_dapm_widget *w) | |
3689 | { | |
3690 | struct snd_soc_dapm_path *p; | |
3691 | ||
3692 | list_for_each_entry(p, &card->paths, list) { | |
3693 | if ((p->source == w) || (p->sink == w)) { | |
3694 | dev_dbg(card->dev, | |
3695 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3696 | p->source->name, p->source->id, p->source->dapm, | |
3697 | p->sink->name, p->sink->id, p->sink->dapm); | |
3698 | ||
3699 | /* Connected to something other than the codec */ | |
3700 | if (p->source->dapm != p->sink->dapm) | |
3701 | return true; | |
3702 | /* | |
3703 | * Loopback connection from codec external pin to | |
3704 | * codec external pin | |
3705 | */ | |
3706 | if (p->sink->id == snd_soc_dapm_input) { | |
3707 | switch (p->source->id) { | |
3708 | case snd_soc_dapm_output: | |
3709 | case snd_soc_dapm_micbias: | |
3710 | return true; | |
3711 | default: | |
3712 | break; | |
3713 | } | |
3714 | } | |
3715 | } | |
3716 | } | |
3717 | ||
3718 | return false; | |
3719 | } | |
3720 | ||
3721 | /** | |
3722 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3723 | * @codec: The codec whose pins should be processed | |
3724 | * | |
3725 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3726 | * which are unused. Pins are used if they are connected externally to the | |
3727 | * codec, whether that be to some other device, or a loop-back connection to | |
3728 | * the codec itself. | |
3729 | */ | |
3730 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3731 | { | |
3732 | struct snd_soc_card *card = codec->card; | |
3733 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3734 | struct snd_soc_dapm_widget *w; | |
3735 | ||
30a6a1a4 | 3736 | dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3737 | &card->dapm, &codec->dapm); |
3738 | ||
3739 | list_for_each_entry(w, &card->widgets, list) { | |
3740 | if (w->dapm != dapm) | |
3741 | continue; | |
3742 | switch (w->id) { | |
3743 | case snd_soc_dapm_input: | |
3744 | case snd_soc_dapm_output: | |
3745 | case snd_soc_dapm_micbias: | |
30a6a1a4 | 3746 | dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", |
1633281b SW |
3747 | w->name); |
3748 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3749 | dev_dbg(codec->dev, |
1633281b SW |
3750 | "... Not in map; disabling\n"); |
3751 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3752 | } | |
3753 | break; | |
3754 | default: | |
3755 | break; | |
3756 | } | |
3757 | } | |
3758 | } | |
3759 | ||
2b97eabc RP |
3760 | /** |
3761 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3762 | * @dapm: DAPM context |
2b97eabc RP |
3763 | * |
3764 | * Free all dapm widgets and resources. | |
3765 | */ | |
ce6120cc | 3766 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3767 | { |
ce6120cc | 3768 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3769 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3770 | dapm_free_widgets(dapm); |
7be31be8 | 3771 | list_del(&dapm->list); |
2b97eabc RP |
3772 | } |
3773 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3774 | ||
ce6120cc | 3775 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3776 | { |
01005a72 | 3777 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3778 | struct snd_soc_dapm_widget *w; |
3779 | LIST_HEAD(down_list); | |
3780 | int powerdown = 0; | |
3781 | ||
01005a72 LG |
3782 | mutex_lock(&card->dapm_mutex); |
3783 | ||
97c866de JN |
3784 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3785 | if (w->dapm != dapm) | |
3786 | continue; | |
51737470 | 3787 | if (w->power) { |
828a842f | 3788 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3789 | w->power = 0; |
51737470 MB |
3790 | powerdown = 1; |
3791 | } | |
3792 | } | |
3793 | ||
3794 | /* If there were no widgets to power down we're already in | |
3795 | * standby. | |
3796 | */ | |
3797 | if (powerdown) { | |
7679e42e MB |
3798 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3799 | snd_soc_dapm_set_bias_level(dapm, | |
3800 | SND_SOC_BIAS_PREPARE); | |
828a842f | 3801 | dapm_seq_run(dapm, &down_list, 0, false); |
7679e42e MB |
3802 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3803 | snd_soc_dapm_set_bias_level(dapm, | |
3804 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3805 | } |
01005a72 LG |
3806 | |
3807 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3808 | } |
3809 | ||
3810 | /* | |
3811 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3812 | */ | |
3813 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3814 | { | |
3815 | struct snd_soc_codec *codec; | |
3816 | ||
445632ad | 3817 | list_for_each_entry(codec, &card->codec_dev_list, card_list) { |
ce6120cc | 3818 | soc_dapm_shutdown_codec(&codec->dapm); |
7679e42e MB |
3819 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3820 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3821 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3822 | } |
51737470 MB |
3823 | } |
3824 | ||
2b97eabc | 3825 | /* Module information */ |
d331124d | 3826 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3827 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3828 | MODULE_LICENSE("GPL"); |