Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
2b97eabc RP |
50 | /* dapm power sequences - make this per codec in the future */ |
51 | static int dapm_up_seq[] = { | |
38357ab2 MB |
52 | [snd_soc_dapm_pre] = 0, |
53 | [snd_soc_dapm_supply] = 1, | |
62ea874a | 54 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 55 | [snd_soc_dapm_clock_supply] = 1, |
38357ab2 | 56 | [snd_soc_dapm_micbias] = 2, |
c74184ed | 57 | [snd_soc_dapm_dai_link] = 2, |
888df395 | 58 | [snd_soc_dapm_dai] = 3, |
010ff262 MB |
59 | [snd_soc_dapm_aif_in] = 3, |
60 | [snd_soc_dapm_aif_out] = 3, | |
61 | [snd_soc_dapm_mic] = 4, | |
62 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 63 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
64 | [snd_soc_dapm_value_mux] = 5, |
65 | [snd_soc_dapm_dac] = 6, | |
66 | [snd_soc_dapm_mixer] = 7, | |
67 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
68 | [snd_soc_dapm_pga] = 8, | |
69 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 70 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
71 | [snd_soc_dapm_hp] = 10, |
72 | [snd_soc_dapm_spk] = 10, | |
7e1f7c8a | 73 | [snd_soc_dapm_line] = 10, |
010ff262 | 74 | [snd_soc_dapm_post] = 11, |
2b97eabc | 75 | }; |
ca9c1aae | 76 | |
2b97eabc | 77 | static int dapm_down_seq[] = { |
38357ab2 MB |
78 | [snd_soc_dapm_pre] = 0, |
79 | [snd_soc_dapm_adc] = 1, | |
80 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 81 | [snd_soc_dapm_spk] = 2, |
7e1f7c8a | 82 | [snd_soc_dapm_line] = 2, |
d88429a6 | 83 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
84 | [snd_soc_dapm_pga] = 4, |
85 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
86 | [snd_soc_dapm_mixer] = 5, |
87 | [snd_soc_dapm_dac] = 6, | |
88 | [snd_soc_dapm_mic] = 7, | |
89 | [snd_soc_dapm_micbias] = 8, | |
90 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 91 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 92 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
93 | [snd_soc_dapm_aif_in] = 10, |
94 | [snd_soc_dapm_aif_out] = 10, | |
888df395 | 95 | [snd_soc_dapm_dai] = 10, |
c74184ed | 96 | [snd_soc_dapm_dai_link] = 11, |
d7e7eb91 | 97 | [snd_soc_dapm_clock_supply] = 12, |
c74184ed MB |
98 | [snd_soc_dapm_regulator_supply] = 12, |
99 | [snd_soc_dapm_supply] = 12, | |
100 | [snd_soc_dapm_post] = 13, | |
2b97eabc RP |
101 | }; |
102 | ||
12ef193d | 103 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
104 | { |
105 | if (pop_time) | |
106 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
107 | } | |
108 | ||
fd8d3bc0 | 109 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
110 | { |
111 | va_list args; | |
fd8d3bc0 | 112 | char *buf; |
15e4c72f | 113 | |
fd8d3bc0 JN |
114 | if (!pop_time) |
115 | return; | |
15e4c72f | 116 | |
fd8d3bc0 JN |
117 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
118 | if (buf == NULL) | |
119 | return; | |
15e4c72f | 120 | |
fd8d3bc0 JN |
121 | va_start(args, fmt); |
122 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 123 | dev_info(dev, "%s", buf); |
15e4c72f | 124 | va_end(args); |
fd8d3bc0 JN |
125 | |
126 | kfree(buf); | |
15e4c72f MB |
127 | } |
128 | ||
db432b41 MB |
129 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
130 | { | |
131 | return !list_empty(&w->dirty); | |
132 | } | |
133 | ||
25c77c5f | 134 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 135 | { |
75c1f891 MB |
136 | if (!dapm_dirty_widget(w)) { |
137 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
138 | w->name, reason); | |
db432b41 | 139 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 140 | } |
db432b41 | 141 | } |
25c77c5f | 142 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 143 | |
2b97eabc | 144 | /* create a new dapm widget */ |
88cb4290 | 145 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
146 | const struct snd_soc_dapm_widget *_widget) |
147 | { | |
88cb4290 | 148 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
149 | } |
150 | ||
4805608a LG |
151 | /* get snd_card from DAPM context */ |
152 | static inline struct snd_card *dapm_get_snd_card( | |
153 | struct snd_soc_dapm_context *dapm) | |
154 | { | |
155 | if (dapm->codec) | |
156 | return dapm->codec->card->snd_card; | |
157 | else if (dapm->platform) | |
158 | return dapm->platform->card->snd_card; | |
159 | else | |
160 | BUG(); | |
161 | ||
162 | /* unreachable */ | |
163 | return NULL; | |
164 | } | |
165 | ||
166 | /* get soc_card from DAPM context */ | |
167 | static inline struct snd_soc_card *dapm_get_soc_card( | |
168 | struct snd_soc_dapm_context *dapm) | |
169 | { | |
170 | if (dapm->codec) | |
171 | return dapm->codec->card; | |
172 | else if (dapm->platform) | |
173 | return dapm->platform->card; | |
174 | else | |
175 | BUG(); | |
176 | ||
177 | /* unreachable */ | |
178 | return NULL; | |
179 | } | |
180 | ||
6c120e19 LG |
181 | static void dapm_reset(struct snd_soc_card *card) |
182 | { | |
183 | struct snd_soc_dapm_widget *w; | |
184 | ||
185 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
186 | ||
187 | list_for_each_entry(w, &card->widgets, list) { | |
188 | w->power_checked = false; | |
189 | w->inputs = -1; | |
190 | w->outputs = -1; | |
191 | } | |
192 | } | |
193 | ||
0445bdf4 LG |
194 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
195 | { | |
196 | if (w->codec) | |
197 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
198 | else if (w->platform) |
199 | return snd_soc_platform_read(w->platform, reg); | |
200 | ||
201 | dev_err(w->dapm->dev, "no valid widget read method\n"); | |
202 | return -1; | |
0445bdf4 LG |
203 | } |
204 | ||
205 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
206 | { | |
207 | if (w->codec) | |
208 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
209 | else if (w->platform) |
210 | return snd_soc_platform_write(w->platform, reg, val); | |
211 | ||
212 | dev_err(w->dapm->dev, "no valid widget write method\n"); | |
213 | return -1; | |
0445bdf4 LG |
214 | } |
215 | ||
49575fb5 LG |
216 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
217 | { | |
e06ab3b8 | 218 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
219 | mutex_lock(&w->codec->mutex); |
220 | else if (w->platform) | |
221 | mutex_lock(&w->platform->mutex); | |
222 | } | |
223 | ||
224 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
225 | { | |
e06ab3b8 | 226 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
227 | mutex_unlock(&w->codec->mutex); |
228 | else if (w->platform) | |
229 | mutex_unlock(&w->platform->mutex); | |
230 | } | |
231 | ||
232 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, | |
0445bdf4 LG |
233 | unsigned short reg, unsigned int mask, unsigned int value) |
234 | { | |
8a713da8 | 235 | bool change; |
0445bdf4 LG |
236 | unsigned int old, new; |
237 | int ret; | |
238 | ||
8a713da8 MB |
239 | if (w->codec && w->codec->using_regmap) { |
240 | ret = regmap_update_bits_check(w->codec->control_data, | |
241 | reg, mask, value, &change); | |
242 | if (ret != 0) | |
243 | return ret; | |
244 | } else { | |
49575fb5 | 245 | soc_widget_lock(w); |
8a713da8 | 246 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
247 | if (ret < 0) { |
248 | soc_widget_unlock(w); | |
0445bdf4 | 249 | return ret; |
49575fb5 | 250 | } |
8a713da8 MB |
251 | |
252 | old = ret; | |
253 | new = (old & ~mask) | (value & mask); | |
254 | change = old != new; | |
255 | if (change) { | |
256 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
257 | if (ret < 0) { |
258 | soc_widget_unlock(w); | |
8a713da8 | 259 | return ret; |
49575fb5 | 260 | } |
8a713da8 | 261 | } |
49575fb5 | 262 | soc_widget_unlock(w); |
0445bdf4 LG |
263 | } |
264 | ||
265 | return change; | |
266 | } | |
267 | ||
452c5eaa MB |
268 | /** |
269 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 270 | * @dapm: DAPM context |
452c5eaa MB |
271 | * @level: level to configure |
272 | * | |
273 | * Configure the bias (power) levels for the SoC audio device. | |
274 | * | |
275 | * Returns 0 for success else error. | |
276 | */ | |
ed5a4c47 | 277 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 278 | enum snd_soc_bias_level level) |
452c5eaa | 279 | { |
ed5a4c47 | 280 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
281 | int ret = 0; |
282 | ||
84e90930 MB |
283 | trace_snd_soc_bias_level_start(card, level); |
284 | ||
f0fba2ad | 285 | if (card && card->set_bias_level) |
d4c6005f | 286 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
287 | if (ret != 0) |
288 | goto out; | |
289 | ||
cc4c670a MB |
290 | if (dapm->codec) { |
291 | if (dapm->codec->driver->set_bias_level) | |
292 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
293 | level); | |
4123128e LG |
294 | } else |
295 | dapm->bias_level = level; | |
296 | ||
171ec6b0 MB |
297 | if (ret != 0) |
298 | goto out; | |
299 | ||
300 | if (card && card->set_bias_level_post) | |
d4c6005f | 301 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 302 | out: |
84e90930 MB |
303 | trace_snd_soc_bias_level_done(card, level); |
304 | ||
452c5eaa MB |
305 | return ret; |
306 | } | |
307 | ||
2b97eabc RP |
308 | /* set up initial codec paths */ |
309 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
310 | struct snd_soc_dapm_path *p, int i) | |
311 | { | |
312 | switch (w->id) { | |
313 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
314 | case snd_soc_dapm_mixer: |
315 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 316 | int val; |
4eaa9819 | 317 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 318 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
319 | unsigned int reg = mc->reg; |
320 | unsigned int shift = mc->shift; | |
4eaa9819 | 321 | int max = mc->max; |
815ecf8d JS |
322 | unsigned int mask = (1 << fls(max)) - 1; |
323 | unsigned int invert = mc->invert; | |
2b97eabc | 324 | |
0445bdf4 | 325 | val = soc_widget_read(w, reg); |
2b97eabc | 326 | val = (val >> shift) & mask; |
32fee7af BT |
327 | if (invert) |
328 | val = max - val; | |
2b97eabc | 329 | |
32fee7af | 330 | p->connect = !!val; |
2b97eabc RP |
331 | } |
332 | break; | |
333 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
334 | struct soc_enum *e = (struct soc_enum *) |
335 | w->kcontrol_news[i].private_value; | |
2b97eabc RP |
336 | int val, item, bitmask; |
337 | ||
f8ba0b7b | 338 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
88d96086 | 339 | ; |
0445bdf4 | 340 | val = soc_widget_read(w, e->reg); |
2b97eabc RP |
341 | item = (val >> e->shift_l) & (bitmask - 1); |
342 | ||
343 | p->connect = 0; | |
f8ba0b7b | 344 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
345 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
346 | p->connect = 1; | |
347 | } | |
348 | } | |
349 | break; | |
24ff33ac | 350 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
351 | struct soc_enum *e = (struct soc_enum *) |
352 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
353 | |
354 | p->connect = 0; | |
355 | /* since a virtual mux has no backing registers to | |
356 | * decide which path to connect, it will try to match | |
357 | * with the first enumeration. This is to ensure | |
358 | * that the default mux choice (the first) will be | |
359 | * correctly powered up during initialization. | |
360 | */ | |
361 | if (!strcmp(p->name, e->texts[0])) | |
362 | p->connect = 1; | |
363 | } | |
364 | break; | |
2e72f8e3 | 365 | case snd_soc_dapm_value_mux: { |
74155556 | 366 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 367 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
368 | int val, item; |
369 | ||
0445bdf4 | 370 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
371 | val = (val >> e->shift_l) & e->mask; |
372 | for (item = 0; item < e->max; item++) { | |
373 | if (val == e->values[item]) | |
374 | break; | |
375 | } | |
376 | ||
377 | p->connect = 0; | |
378 | for (i = 0; i < e->max; i++) { | |
379 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
380 | p->connect = 1; | |
381 | } | |
382 | } | |
383 | break; | |
56563100 | 384 | /* does not affect routing - always connected */ |
2b97eabc | 385 | case snd_soc_dapm_pga: |
d88429a6 | 386 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
387 | case snd_soc_dapm_output: |
388 | case snd_soc_dapm_adc: | |
389 | case snd_soc_dapm_input: | |
1ab97c8c | 390 | case snd_soc_dapm_siggen: |
2b97eabc RP |
391 | case snd_soc_dapm_dac: |
392 | case snd_soc_dapm_micbias: | |
393 | case snd_soc_dapm_vmid: | |
246d0a17 | 394 | case snd_soc_dapm_supply: |
62ea874a | 395 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 396 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
397 | case snd_soc_dapm_aif_in: |
398 | case snd_soc_dapm_aif_out: | |
888df395 | 399 | case snd_soc_dapm_dai: |
2b97eabc RP |
400 | case snd_soc_dapm_hp: |
401 | case snd_soc_dapm_mic: | |
402 | case snd_soc_dapm_spk: | |
403 | case snd_soc_dapm_line: | |
c74184ed | 404 | case snd_soc_dapm_dai_link: |
56563100 MB |
405 | p->connect = 1; |
406 | break; | |
407 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
408 | case snd_soc_dapm_pre: |
409 | case snd_soc_dapm_post: | |
410 | p->connect = 0; | |
411 | break; | |
412 | } | |
413 | } | |
414 | ||
74b8f955 | 415 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 416 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
417 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
418 | struct snd_soc_dapm_path *path, const char *control_name, | |
419 | const struct snd_kcontrol_new *kcontrol) | |
420 | { | |
421 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
422 | int i; | |
423 | ||
f8ba0b7b | 424 | for (i = 0; i < e->max; i++) { |
2b97eabc | 425 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 426 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
427 | list_add(&path->list_sink, &dest->sources); |
428 | list_add(&path->list_source, &src->sinks); | |
429 | path->name = (char*)e->texts[i]; | |
430 | dapm_set_path_status(dest, path, 0); | |
431 | return 0; | |
432 | } | |
433 | } | |
434 | ||
435 | return -ENODEV; | |
436 | } | |
437 | ||
74b8f955 | 438 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 439 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
440 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
441 | struct snd_soc_dapm_path *path, const char *control_name) | |
442 | { | |
443 | int i; | |
444 | ||
445 | /* search for mixer kcontrol */ | |
446 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 447 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 448 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
449 | list_add(&path->list_sink, &dest->sources); |
450 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 451 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
452 | dapm_set_path_status(dest, path, i); |
453 | return 0; | |
454 | } | |
455 | } | |
456 | return -ENODEV; | |
457 | } | |
458 | ||
af46800b | 459 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 460 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
461 | const struct snd_kcontrol_new *kcontrol_new, |
462 | struct snd_kcontrol **kcontrol) | |
463 | { | |
464 | struct snd_soc_dapm_widget *w; | |
465 | int i; | |
466 | ||
467 | *kcontrol = NULL; | |
468 | ||
469 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
470 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
471 | continue; | |
af46800b SW |
472 | for (i = 0; i < w->num_kcontrols; i++) { |
473 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
474 | if (w->kcontrols) | |
475 | *kcontrol = w->kcontrols[i]; | |
476 | return 1; | |
477 | } | |
478 | } | |
479 | } | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
2b97eabc | 484 | /* create new dapm mixer control */ |
4b80b8c2 | 485 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
2b97eabc | 486 | { |
4b80b8c2 | 487 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc | 488 | int i, ret = 0; |
3e5ff4df | 489 | size_t name_len, prefix_len; |
2b97eabc | 490 | struct snd_soc_dapm_path *path; |
12ea2c78 | 491 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 492 | const char *prefix; |
fafd2176 SW |
493 | struct snd_soc_dapm_widget_list *wlist; |
494 | size_t wlistsize; | |
efb7ac3f MB |
495 | |
496 | if (dapm->codec) | |
497 | prefix = dapm->codec->name_prefix; | |
498 | else | |
499 | prefix = NULL; | |
2b97eabc | 500 | |
3e5ff4df MB |
501 | if (prefix) |
502 | prefix_len = strlen(prefix) + 1; | |
503 | else | |
504 | prefix_len = 0; | |
505 | ||
2b97eabc RP |
506 | /* add kcontrol */ |
507 | for (i = 0; i < w->num_kcontrols; i++) { | |
508 | ||
509 | /* match name */ | |
510 | list_for_each_entry(path, &w->sources, list_sink) { | |
511 | ||
512 | /* mixer/mux paths name must match control name */ | |
82cfecdc | 513 | if (path->name != (char *)w->kcontrol_news[i].name) |
2b97eabc RP |
514 | continue; |
515 | ||
82cd8764 LPC |
516 | if (w->kcontrols[i]) { |
517 | path->kcontrol = w->kcontrols[i]; | |
518 | continue; | |
519 | } | |
520 | ||
fafd2176 SW |
521 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
522 | sizeof(struct snd_soc_dapm_widget *), | |
523 | wlist = kzalloc(wlistsize, GFP_KERNEL); | |
524 | if (wlist == NULL) { | |
525 | dev_err(dapm->dev, | |
526 | "asoc: can't allocate widget list for %s\n", | |
527 | w->name); | |
528 | return -ENOMEM; | |
529 | } | |
530 | wlist->num_widgets = 1; | |
531 | wlist->widgets[0] = w; | |
532 | ||
ca9c1aae IM |
533 | /* add dapm control with long name. |
534 | * for dapm_mixer this is the concatenation of the | |
535 | * mixer and kcontrol name. | |
536 | * for dapm_mixer_named_ctl this is simply the | |
537 | * kcontrol name. | |
538 | */ | |
82cfecdc | 539 | name_len = strlen(w->kcontrol_news[i].name) + 1; |
07495f3e | 540 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
541 | name_len += 1 + strlen(w->name); |
542 | ||
219b93f5 | 543 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 544 | |
fafd2176 SW |
545 | if (path->long_name == NULL) { |
546 | kfree(wlist); | |
2b97eabc | 547 | return -ENOMEM; |
fafd2176 | 548 | } |
2b97eabc | 549 | |
ca9c1aae | 550 | switch (w->id) { |
ca9c1aae | 551 | default: |
3e5ff4df MB |
552 | /* The control will get a prefix from |
553 | * the control creation process but | |
554 | * we're also using the same prefix | |
555 | * for widgets so cut the prefix off | |
556 | * the front of the widget name. | |
557 | */ | |
888df395 MB |
558 | snprintf((char *)path->long_name, name_len, |
559 | "%s %s", w->name + prefix_len, | |
82cfecdc | 560 | w->kcontrol_news[i].name); |
07495f3e | 561 | break; |
ca9c1aae | 562 | case snd_soc_dapm_mixer_named_ctl: |
888df395 MB |
563 | snprintf((char *)path->long_name, name_len, |
564 | "%s", w->kcontrol_news[i].name); | |
07495f3e | 565 | break; |
ca9c1aae IM |
566 | } |
567 | ||
888df395 | 568 | ((char *)path->long_name)[name_len - 1] = '\0'; |
219b93f5 | 569 | |
fafd2176 SW |
570 | path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], |
571 | wlist, path->long_name, | |
572 | prefix); | |
ce6120cc | 573 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 574 | if (ret < 0) { |
f7d41ae8 JN |
575 | dev_err(dapm->dev, |
576 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
577 | path->long_name, ret); | |
fafd2176 | 578 | kfree(wlist); |
2b97eabc RP |
579 | kfree(path->long_name); |
580 | path->long_name = NULL; | |
581 | return ret; | |
582 | } | |
fad59888 | 583 | w->kcontrols[i] = path->kcontrol; |
2b97eabc RP |
584 | } |
585 | } | |
586 | return ret; | |
587 | } | |
588 | ||
589 | /* create new dapm mux control */ | |
4b80b8c2 | 590 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 591 | { |
4b80b8c2 | 592 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc RP |
593 | struct snd_soc_dapm_path *path = NULL; |
594 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 595 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 596 | const char *prefix; |
3e5ff4df | 597 | size_t prefix_len; |
af46800b | 598 | int ret; |
fafd2176 | 599 | struct snd_soc_dapm_widget_list *wlist; |
af46800b | 600 | int shared, wlistentries; |
fafd2176 | 601 | size_t wlistsize; |
888df395 | 602 | const char *name; |
2b97eabc | 603 | |
af46800b SW |
604 | if (w->num_kcontrols != 1) { |
605 | dev_err(dapm->dev, | |
606 | "asoc: mux %s has incorrect number of controls\n", | |
607 | w->name); | |
2b97eabc RP |
608 | return -EINVAL; |
609 | } | |
610 | ||
1007da06 | 611 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b SW |
612 | &kcontrol); |
613 | if (kcontrol) { | |
614 | wlist = kcontrol->private_data; | |
615 | wlistentries = wlist->num_widgets + 1; | |
616 | } else { | |
617 | wlist = NULL; | |
618 | wlistentries = 1; | |
619 | } | |
fafd2176 | 620 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b SW |
621 | wlistentries * sizeof(struct snd_soc_dapm_widget *), |
622 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
fafd2176 SW |
623 | if (wlist == NULL) { |
624 | dev_err(dapm->dev, | |
625 | "asoc: can't allocate widget list for %s\n", w->name); | |
626 | return -ENOMEM; | |
627 | } | |
af46800b SW |
628 | wlist->num_widgets = wlistentries; |
629 | wlist->widgets[wlistentries - 1] = w; | |
efb7ac3f | 630 | |
af46800b SW |
631 | if (!kcontrol) { |
632 | if (dapm->codec) | |
633 | prefix = dapm->codec->name_prefix; | |
634 | else | |
635 | prefix = NULL; | |
636 | ||
637 | if (shared) { | |
638 | name = w->kcontrol_news[0].name; | |
639 | prefix_len = 0; | |
640 | } else { | |
641 | name = w->name; | |
642 | if (prefix) | |
643 | prefix_len = strlen(prefix) + 1; | |
644 | else | |
645 | prefix_len = 0; | |
646 | } | |
3e5ff4df | 647 | |
af46800b SW |
648 | /* |
649 | * The control will get a prefix from the control creation | |
650 | * process but we're also using the same prefix for widgets so | |
651 | * cut the prefix off the front of the widget name. | |
652 | */ | |
653 | kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, | |
654 | name + prefix_len, prefix); | |
655 | ret = snd_ctl_add(card, kcontrol); | |
656 | if (ret < 0) { | |
53daf208 MB |
657 | dev_err(dapm->dev, "failed to add kcontrol %s: %d\n", |
658 | w->name, ret); | |
af46800b SW |
659 | kfree(wlist); |
660 | return ret; | |
661 | } | |
662 | } | |
ce6120cc | 663 | |
af46800b | 664 | kcontrol->private_data = wlist; |
2b97eabc | 665 | |
fad59888 SW |
666 | w->kcontrols[0] = kcontrol; |
667 | ||
2b97eabc RP |
668 | list_for_each_entry(path, &w->sources, list_sink) |
669 | path->kcontrol = kcontrol; | |
670 | ||
af46800b | 671 | return 0; |
2b97eabc RP |
672 | } |
673 | ||
674 | /* create new dapm volume control */ | |
4b80b8c2 | 675 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 676 | { |
a6c65736 | 677 | if (w->num_kcontrols) |
f7d41ae8 JN |
678 | dev_err(w->dapm->dev, |
679 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 680 | |
a6c65736 | 681 | return 0; |
2b97eabc RP |
682 | } |
683 | ||
684 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 685 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
686 | { |
687 | struct snd_soc_dapm_path *p; | |
688 | ||
8ddab3f5 | 689 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
690 | p->walked = 0; |
691 | } | |
692 | ||
9949788b MB |
693 | /* We implement power down on suspend by checking the power state of |
694 | * the ALSA card - when we are suspending the ALSA state for the card | |
695 | * is set to D3. | |
696 | */ | |
697 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
698 | { | |
12ea2c78 | 699 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 700 | |
f0fba2ad | 701 | switch (level) { |
9949788b MB |
702 | case SNDRV_CTL_POWER_D3hot: |
703 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 704 | if (widget->ignore_suspend) |
f7d41ae8 JN |
705 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
706 | widget->name); | |
1547aba9 | 707 | return widget->ignore_suspend; |
9949788b MB |
708 | default: |
709 | return 1; | |
710 | } | |
711 | } | |
712 | ||
ec2e3031 LG |
713 | /* add widget to list if it's not already in the list */ |
714 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
715 | struct snd_soc_dapm_widget *w) | |
716 | { | |
717 | struct snd_soc_dapm_widget_list *wlist; | |
718 | int wlistsize, wlistentries, i; | |
719 | ||
720 | if (*list == NULL) | |
721 | return -EINVAL; | |
722 | ||
723 | wlist = *list; | |
724 | ||
725 | /* is this widget already in the list */ | |
726 | for (i = 0; i < wlist->num_widgets; i++) { | |
727 | if (wlist->widgets[i] == w) | |
728 | return 0; | |
729 | } | |
730 | ||
731 | /* allocate some new space */ | |
732 | wlistentries = wlist->num_widgets + 1; | |
733 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
734 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
735 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
736 | if (*list == NULL) { | |
737 | dev_err(w->dapm->dev, "can't allocate widget list for %s\n", | |
738 | w->name); | |
739 | return -ENOMEM; | |
740 | } | |
741 | wlist = *list; | |
742 | ||
743 | /* insert the widget */ | |
744 | dev_dbg(w->dapm->dev, "added %s in widget list pos %d\n", | |
745 | w->name, wlist->num_widgets); | |
746 | ||
747 | wlist->widgets[wlist->num_widgets] = w; | |
748 | wlist->num_widgets++; | |
749 | return 1; | |
750 | } | |
751 | ||
2b97eabc RP |
752 | /* |
753 | * Recursively check for a completed path to an active or physically connected | |
754 | * output widget. Returns number of complete paths. | |
755 | */ | |
ec2e3031 LG |
756 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
757 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
758 | { |
759 | struct snd_soc_dapm_path *path; | |
760 | int con = 0; | |
761 | ||
024dc078 MB |
762 | if (widget->outputs >= 0) |
763 | return widget->outputs; | |
764 | ||
de02d078 MB |
765 | DAPM_UPDATE_STAT(widget, path_checks); |
766 | ||
62ea874a MB |
767 | switch (widget->id) { |
768 | case snd_soc_dapm_supply: | |
769 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 770 | case snd_soc_dapm_clock_supply: |
246d0a17 | 771 | return 0; |
62ea874a MB |
772 | default: |
773 | break; | |
774 | } | |
246d0a17 | 775 | |
010ff262 MB |
776 | switch (widget->id) { |
777 | case snd_soc_dapm_adc: | |
778 | case snd_soc_dapm_aif_out: | |
888df395 | 779 | case snd_soc_dapm_dai: |
024dc078 MB |
780 | if (widget->active) { |
781 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
782 | return widget->outputs; | |
783 | } | |
010ff262 MB |
784 | default: |
785 | break; | |
786 | } | |
2b97eabc RP |
787 | |
788 | if (widget->connected) { | |
789 | /* connected pin ? */ | |
024dc078 MB |
790 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
791 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
792 | return widget->outputs; | |
793 | } | |
2b97eabc RP |
794 | |
795 | /* connected jack or spk ? */ | |
024dc078 MB |
796 | if (widget->id == snd_soc_dapm_hp || |
797 | widget->id == snd_soc_dapm_spk || | |
798 | (widget->id == snd_soc_dapm_line && | |
799 | !list_empty(&widget->sources))) { | |
800 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
801 | return widget->outputs; | |
802 | } | |
2b97eabc RP |
803 | } |
804 | ||
805 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
806 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
807 | ||
bf3a9e13 MB |
808 | if (path->weak) |
809 | continue; | |
810 | ||
2b97eabc RP |
811 | if (path->walked) |
812 | continue; | |
813 | ||
ec2e3031 LG |
814 | trace_snd_soc_dapm_output_path(widget, path); |
815 | ||
2b97eabc RP |
816 | if (path->sink && path->connect) { |
817 | path->walked = 1; | |
ec2e3031 LG |
818 | |
819 | /* do we need to add this widget to the list ? */ | |
820 | if (list) { | |
821 | int err; | |
822 | err = dapm_list_add_widget(list, path->sink); | |
823 | if (err < 0) { | |
824 | dev_err(widget->dapm->dev, "could not add widget %s\n", | |
825 | widget->name); | |
826 | return con; | |
827 | } | |
828 | } | |
829 | ||
830 | con += is_connected_output_ep(path->sink, list); | |
2b97eabc RP |
831 | } |
832 | } | |
833 | ||
024dc078 MB |
834 | widget->outputs = con; |
835 | ||
2b97eabc RP |
836 | return con; |
837 | } | |
838 | ||
839 | /* | |
840 | * Recursively check for a completed path to an active or physically connected | |
841 | * input widget. Returns number of complete paths. | |
842 | */ | |
ec2e3031 LG |
843 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
844 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
845 | { |
846 | struct snd_soc_dapm_path *path; | |
847 | int con = 0; | |
848 | ||
024dc078 MB |
849 | if (widget->inputs >= 0) |
850 | return widget->inputs; | |
851 | ||
de02d078 MB |
852 | DAPM_UPDATE_STAT(widget, path_checks); |
853 | ||
62ea874a MB |
854 | switch (widget->id) { |
855 | case snd_soc_dapm_supply: | |
856 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 857 | case snd_soc_dapm_clock_supply: |
246d0a17 | 858 | return 0; |
62ea874a MB |
859 | default: |
860 | break; | |
861 | } | |
246d0a17 | 862 | |
2b97eabc | 863 | /* active stream ? */ |
010ff262 MB |
864 | switch (widget->id) { |
865 | case snd_soc_dapm_dac: | |
866 | case snd_soc_dapm_aif_in: | |
888df395 | 867 | case snd_soc_dapm_dai: |
024dc078 MB |
868 | if (widget->active) { |
869 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
870 | return widget->inputs; | |
871 | } | |
010ff262 MB |
872 | default: |
873 | break; | |
874 | } | |
2b97eabc RP |
875 | |
876 | if (widget->connected) { | |
877 | /* connected pin ? */ | |
024dc078 MB |
878 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
879 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
880 | return widget->inputs; | |
881 | } | |
2b97eabc RP |
882 | |
883 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
884 | if (widget->id == snd_soc_dapm_vmid) { |
885 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
886 | return widget->inputs; | |
887 | } | |
2b97eabc RP |
888 | |
889 | /* connected jack ? */ | |
eaeae5d9 | 890 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
891 | (widget->id == snd_soc_dapm_line && |
892 | !list_empty(&widget->sinks))) { | |
893 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
894 | return widget->inputs; | |
895 | } | |
896 | ||
1ab97c8c MB |
897 | /* signal generator */ |
898 | if (widget->id == snd_soc_dapm_siggen) { | |
899 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
900 | return widget->inputs; | |
901 | } | |
2b97eabc RP |
902 | } |
903 | ||
904 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
905 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
906 | ||
bf3a9e13 MB |
907 | if (path->weak) |
908 | continue; | |
909 | ||
2b97eabc RP |
910 | if (path->walked) |
911 | continue; | |
912 | ||
ec2e3031 LG |
913 | trace_snd_soc_dapm_input_path(widget, path); |
914 | ||
2b97eabc RP |
915 | if (path->source && path->connect) { |
916 | path->walked = 1; | |
ec2e3031 LG |
917 | |
918 | /* do we need to add this widget to the list ? */ | |
919 | if (list) { | |
920 | int err; | |
90c6ce0d | 921 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 LG |
922 | if (err < 0) { |
923 | dev_err(widget->dapm->dev, "could not add widget %s\n", | |
924 | widget->name); | |
925 | return con; | |
926 | } | |
927 | } | |
928 | ||
929 | con += is_connected_input_ep(path->source, list); | |
2b97eabc RP |
930 | } |
931 | } | |
932 | ||
024dc078 MB |
933 | widget->inputs = con; |
934 | ||
2b97eabc RP |
935 | return con; |
936 | } | |
937 | ||
ec2e3031 LG |
938 | /** |
939 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
940 | * @dai: the soc DAI. | |
941 | * @stream: stream direction. | |
942 | * @list: list of active widgets for this stream. | |
943 | * | |
944 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
945 | * the initial stream specified by name. This takes into account | |
946 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
947 | * | |
948 | * Returns the number of valid paths or negative error. | |
949 | */ | |
950 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
951 | struct snd_soc_dapm_widget_list **list) | |
952 | { | |
953 | struct snd_soc_card *card = dai->card; | |
954 | int paths; | |
955 | ||
956 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
957 | dapm_reset(card); | |
958 | ||
959 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
960 | paths = is_connected_output_ep(dai->playback_widget, list); | |
961 | else | |
d298caae | 962 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
963 | |
964 | trace_snd_soc_dapm_connected(paths, stream); | |
965 | dapm_clear_walk(&card->dapm); | |
966 | mutex_unlock(&card->dapm_mutex); | |
967 | ||
968 | return paths; | |
969 | } | |
970 | ||
e2be2ccf JN |
971 | /* |
972 | * Handler for generic register modifier widget. | |
973 | */ | |
974 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
975 | struct snd_kcontrol *kcontrol, int event) | |
976 | { | |
977 | unsigned int val; | |
978 | ||
979 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
980 | val = w->on_val; | |
981 | else | |
982 | val = w->off_val; | |
983 | ||
49575fb5 | 984 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
985 | w->mask << w->shift, val << w->shift); |
986 | ||
987 | return 0; | |
988 | } | |
11589418 | 989 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 990 | |
62ea874a MB |
991 | /* |
992 | * Handler for regulator supply widget. | |
993 | */ | |
994 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
995 | struct snd_kcontrol *kcontrol, int event) | |
996 | { | |
997 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
a3cc056b | 998 | return regulator_enable(w->regulator); |
62ea874a | 999 | else |
a3cc056b | 1000 | return regulator_disable_deferred(w->regulator, w->shift); |
62ea874a MB |
1001 | } |
1002 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1003 | ||
d7e7eb91 OL |
1004 | /* |
1005 | * Handler for clock supply widget. | |
1006 | */ | |
1007 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1008 | struct snd_kcontrol *kcontrol, int event) | |
1009 | { | |
1010 | if (!w->clk) | |
1011 | return -EIO; | |
1012 | ||
ec02995a | 1013 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 OL |
1014 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
1015 | return clk_enable(w->clk); | |
1016 | } else { | |
1017 | clk_disable(w->clk); | |
1018 | return 0; | |
1019 | } | |
ec02995a | 1020 | #endif |
98b3cf12 | 1021 | return 0; |
d7e7eb91 OL |
1022 | } |
1023 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1024 | ||
d805002b MB |
1025 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1026 | { | |
9b8a83b2 MB |
1027 | if (w->power_checked) |
1028 | return w->new_power; | |
1029 | ||
d805002b | 1030 | if (w->force) |
9b8a83b2 | 1031 | w->new_power = 1; |
d805002b | 1032 | else |
9b8a83b2 MB |
1033 | w->new_power = w->power_check(w); |
1034 | ||
1035 | w->power_checked = true; | |
1036 | ||
1037 | return w->new_power; | |
d805002b MB |
1038 | } |
1039 | ||
cd0f2d47 MB |
1040 | /* Generic check to see if a widget should be powered. |
1041 | */ | |
1042 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1043 | { | |
1044 | int in, out; | |
1045 | ||
de02d078 MB |
1046 | DAPM_UPDATE_STAT(w, power_checks); |
1047 | ||
ec2e3031 | 1048 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1049 | dapm_clear_walk(w->dapm); |
ec2e3031 | 1050 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1051 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
1052 | return out != 0 && in != 0; |
1053 | } | |
1054 | ||
888df395 MB |
1055 | static int dapm_dai_check_power(struct snd_soc_dapm_widget *w) |
1056 | { | |
1057 | DAPM_UPDATE_STAT(w, power_checks); | |
1058 | ||
1eee1b38 MB |
1059 | if (w->active) |
1060 | return w->active; | |
1061 | ||
1062 | return dapm_generic_check_power(w); | |
888df395 MB |
1063 | } |
1064 | ||
6ea31b9f MB |
1065 | /* Check to see if an ADC has power */ |
1066 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1067 | { | |
1068 | int in; | |
1069 | ||
de02d078 MB |
1070 | DAPM_UPDATE_STAT(w, power_checks); |
1071 | ||
6ea31b9f | 1072 | if (w->active) { |
ec2e3031 | 1073 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1074 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
1075 | return in != 0; |
1076 | } else { | |
1077 | return dapm_generic_check_power(w); | |
1078 | } | |
1079 | } | |
1080 | ||
1081 | /* Check to see if a DAC has power */ | |
1082 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1083 | { | |
1084 | int out; | |
1085 | ||
de02d078 MB |
1086 | DAPM_UPDATE_STAT(w, power_checks); |
1087 | ||
6ea31b9f | 1088 | if (w->active) { |
ec2e3031 | 1089 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1090 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
1091 | return out != 0; |
1092 | } else { | |
1093 | return dapm_generic_check_power(w); | |
1094 | } | |
1095 | } | |
1096 | ||
246d0a17 MB |
1097 | /* Check to see if a power supply is needed */ |
1098 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1099 | { | |
1100 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1101 | |
de02d078 MB |
1102 | DAPM_UPDATE_STAT(w, power_checks); |
1103 | ||
246d0a17 MB |
1104 | /* Check if one of our outputs is connected */ |
1105 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1106 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1107 | ||
bf3a9e13 MB |
1108 | if (path->weak) |
1109 | continue; | |
1110 | ||
215edda3 MB |
1111 | if (path->connected && |
1112 | !path->connected(path->source, path->sink)) | |
1113 | continue; | |
1114 | ||
3017358a MB |
1115 | if (!path->sink) |
1116 | continue; | |
1117 | ||
f68d7e16 MB |
1118 | if (dapm_widget_power_check(path->sink)) |
1119 | return 1; | |
246d0a17 MB |
1120 | } |
1121 | ||
ce6120cc | 1122 | dapm_clear_walk(w->dapm); |
246d0a17 | 1123 | |
f68d7e16 | 1124 | return 0; |
246d0a17 MB |
1125 | } |
1126 | ||
35c64bca MB |
1127 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1128 | { | |
1129 | return 1; | |
1130 | } | |
1131 | ||
38357ab2 MB |
1132 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1133 | struct snd_soc_dapm_widget *b, | |
828a842f | 1134 | bool power_up) |
42aa3418 | 1135 | { |
828a842f MB |
1136 | int *sort; |
1137 | ||
1138 | if (power_up) | |
1139 | sort = dapm_up_seq; | |
1140 | else | |
1141 | sort = dapm_down_seq; | |
1142 | ||
38357ab2 MB |
1143 | if (sort[a->id] != sort[b->id]) |
1144 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1145 | if (a->subseq != b->subseq) { |
1146 | if (power_up) | |
1147 | return a->subseq - b->subseq; | |
1148 | else | |
1149 | return b->subseq - a->subseq; | |
1150 | } | |
b22ead2a MB |
1151 | if (a->reg != b->reg) |
1152 | return a->reg - b->reg; | |
84dab567 MB |
1153 | if (a->dapm != b->dapm) |
1154 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1155 | |
38357ab2 MB |
1156 | return 0; |
1157 | } | |
42aa3418 | 1158 | |
38357ab2 MB |
1159 | /* Insert a widget in order into a DAPM power sequence. */ |
1160 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1161 | struct list_head *list, | |
828a842f | 1162 | bool power_up) |
38357ab2 MB |
1163 | { |
1164 | struct snd_soc_dapm_widget *w; | |
1165 | ||
1166 | list_for_each_entry(w, list, power_list) | |
828a842f | 1167 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1168 | list_add_tail(&new_widget->power_list, &w->power_list); |
1169 | return; | |
1170 | } | |
1171 | ||
1172 | list_add_tail(&new_widget->power_list, list); | |
1173 | } | |
1174 | ||
68f89ad8 MB |
1175 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
1176 | struct snd_soc_dapm_widget *w, int event) | |
1177 | { | |
1178 | struct snd_soc_card *card = dapm->card; | |
1179 | const char *ev_name; | |
1180 | int power, ret; | |
1181 | ||
1182 | switch (event) { | |
1183 | case SND_SOC_DAPM_PRE_PMU: | |
1184 | ev_name = "PRE_PMU"; | |
1185 | power = 1; | |
1186 | break; | |
1187 | case SND_SOC_DAPM_POST_PMU: | |
1188 | ev_name = "POST_PMU"; | |
1189 | power = 1; | |
1190 | break; | |
1191 | case SND_SOC_DAPM_PRE_PMD: | |
1192 | ev_name = "PRE_PMD"; | |
1193 | power = 0; | |
1194 | break; | |
1195 | case SND_SOC_DAPM_POST_PMD: | |
1196 | ev_name = "POST_PMD"; | |
1197 | power = 0; | |
1198 | break; | |
1199 | default: | |
1200 | BUG(); | |
1201 | return; | |
1202 | } | |
1203 | ||
1204 | if (w->power != power) | |
1205 | return; | |
1206 | ||
1207 | if (w->event && (w->event_flags & event)) { | |
1208 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1209 | w->name, ev_name); | |
84e90930 | 1210 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1211 | ret = w->event(w, NULL, event); |
84e90930 | 1212 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
1213 | if (ret < 0) |
1214 | pr_err("%s: %s event failed: %d\n", | |
1215 | ev_name, w->name, ret); | |
1216 | } | |
1217 | } | |
1218 | ||
b22ead2a | 1219 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1220 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1221 | struct list_head *pending) |
163cac06 | 1222 | { |
3a45b867 | 1223 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1224 | struct snd_soc_dapm_widget *w; |
1225 | int reg, power; | |
b22ead2a MB |
1226 | unsigned int value = 0; |
1227 | unsigned int mask = 0; | |
1228 | unsigned int cur_mask; | |
1229 | ||
1230 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1231 | power_list)->reg; | |
1232 | ||
1233 | list_for_each_entry(w, pending, power_list) { | |
1234 | cur_mask = 1 << w->shift; | |
1235 | BUG_ON(reg != w->reg); | |
1236 | ||
1237 | if (w->invert) | |
1238 | power = !w->power; | |
1239 | else | |
1240 | power = w->power; | |
1241 | ||
1242 | mask |= cur_mask; | |
1243 | if (power) | |
1244 | value |= cur_mask; | |
1245 | ||
fd8d3bc0 | 1246 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1247 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1248 | w->name, reg, value, mask); | |
81628103 | 1249 | |
68f89ad8 MB |
1250 | /* Check for events */ |
1251 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1252 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1253 | } |
1254 | ||
1255 | if (reg >= 0) { | |
29376bc7 MB |
1256 | /* Any widget will do, they should all be updating the |
1257 | * same register. | |
1258 | */ | |
1259 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1260 | power_list); | |
1261 | ||
fd8d3bc0 | 1262 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1263 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1264 | value, mask, reg, card->pop_time); |
1265 | pop_wait(card->pop_time); | |
49575fb5 | 1266 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1267 | } |
1268 | ||
81628103 | 1269 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1270 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1271 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1272 | } |
b22ead2a | 1273 | } |
42aa3418 | 1274 | |
b22ead2a MB |
1275 | /* Apply a DAPM power sequence. |
1276 | * | |
1277 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1278 | * order to minimise the number of writes to the device required | |
1279 | * multiple widgets will be updated in a single write where possible. | |
1280 | * Currently anything that requires more than a single write is not | |
1281 | * handled. | |
1282 | */ | |
ce6120cc | 1283 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1284 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1285 | { |
1286 | struct snd_soc_dapm_widget *w, *n; | |
1287 | LIST_HEAD(pending); | |
1288 | int cur_sort = -1; | |
20e4859d | 1289 | int cur_subseq = -1; |
b22ead2a | 1290 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1291 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1292 | int ret, i; |
828a842f MB |
1293 | int *sort; |
1294 | ||
1295 | if (power_up) | |
1296 | sort = dapm_up_seq; | |
1297 | else | |
1298 | sort = dapm_down_seq; | |
163cac06 | 1299 | |
b22ead2a MB |
1300 | list_for_each_entry_safe(w, n, list, power_list) { |
1301 | ret = 0; | |
1302 | ||
1303 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1304 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1305 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1306 | if (!list_empty(&pending)) |
7be31be8 | 1307 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1308 | |
474b62d6 MB |
1309 | if (cur_dapm && cur_dapm->seq_notifier) { |
1310 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1311 | if (sort[i] == cur_sort) | |
1312 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1313 | i, |
1314 | cur_subseq); | |
474b62d6 MB |
1315 | } |
1316 | ||
b22ead2a MB |
1317 | INIT_LIST_HEAD(&pending); |
1318 | cur_sort = -1; | |
b0b3e6f8 | 1319 | cur_subseq = INT_MIN; |
b22ead2a | 1320 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1321 | cur_dapm = NULL; |
b22ead2a MB |
1322 | } |
1323 | ||
163cac06 MB |
1324 | switch (w->id) { |
1325 | case snd_soc_dapm_pre: | |
1326 | if (!w->event) | |
b22ead2a MB |
1327 | list_for_each_entry_safe_continue(w, n, list, |
1328 | power_list); | |
163cac06 | 1329 | |
b22ead2a | 1330 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1331 | ret = w->event(w, |
1332 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1333 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1334 | ret = w->event(w, |
1335 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1336 | break; |
1337 | ||
1338 | case snd_soc_dapm_post: | |
1339 | if (!w->event) | |
b22ead2a MB |
1340 | list_for_each_entry_safe_continue(w, n, list, |
1341 | power_list); | |
163cac06 | 1342 | |
b22ead2a | 1343 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1344 | ret = w->event(w, |
1345 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1346 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1347 | ret = w->event(w, |
1348 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1349 | break; |
1350 | ||
b22ead2a | 1351 | default: |
81628103 MB |
1352 | /* Queue it up for application */ |
1353 | cur_sort = sort[w->id]; | |
20e4859d | 1354 | cur_subseq = w->subseq; |
81628103 | 1355 | cur_reg = w->reg; |
7be31be8 | 1356 | cur_dapm = w->dapm; |
81628103 MB |
1357 | list_move(&w->power_list, &pending); |
1358 | break; | |
163cac06 | 1359 | } |
b22ead2a MB |
1360 | |
1361 | if (ret < 0) | |
f7d41ae8 JN |
1362 | dev_err(w->dapm->dev, |
1363 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1364 | } |
b22ead2a MB |
1365 | |
1366 | if (!list_empty(&pending)) | |
28e86808 | 1367 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1368 | |
1369 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1370 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1371 | if (sort[i] == cur_sort) | |
1372 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1373 | i, cur_subseq); |
474b62d6 | 1374 | } |
42aa3418 MB |
1375 | } |
1376 | ||
97404f2e MB |
1377 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1378 | { | |
1379 | struct snd_soc_dapm_update *update = dapm->update; | |
1380 | struct snd_soc_dapm_widget *w; | |
1381 | int ret; | |
1382 | ||
1383 | if (!update) | |
1384 | return; | |
1385 | ||
1386 | w = update->widget; | |
1387 | ||
1388 | if (w->event && | |
1389 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1390 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1391 | if (ret != 0) | |
1392 | pr_err("%s DAPM pre-event failed: %d\n", | |
1393 | w->name, ret); | |
1394 | } | |
1395 | ||
49575fb5 | 1396 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1397 | update->val); |
1398 | if (ret < 0) | |
1399 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1400 | ||
1401 | if (w->event && | |
1402 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1403 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1404 | if (ret != 0) | |
1405 | pr_err("%s DAPM post-event failed: %d\n", | |
1406 | w->name, ret); | |
1407 | } | |
1408 | } | |
1409 | ||
9d0624a7 MB |
1410 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1411 | * they're changing state. | |
1412 | */ | |
1413 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1414 | { | |
1415 | struct snd_soc_dapm_context *d = data; | |
1416 | int ret; | |
1417 | ||
56fba41f MB |
1418 | /* If we're off and we're not supposed to be go into STANDBY */ |
1419 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1420 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1421 | if (d->dev) |
1422 | pm_runtime_get_sync(d->dev); | |
1423 | ||
9d0624a7 MB |
1424 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1425 | if (ret != 0) | |
1426 | dev_err(d->dev, | |
1427 | "Failed to turn on bias: %d\n", ret); | |
1428 | } | |
1429 | ||
56fba41f MB |
1430 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1431 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1432 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1433 | if (ret != 0) | |
1434 | dev_err(d->dev, | |
1435 | "Failed to prepare bias: %d\n", ret); | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | /* Async callback run prior to DAPM sequences - brings to their final | |
1440 | * state. | |
1441 | */ | |
1442 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1443 | { | |
1444 | struct snd_soc_dapm_context *d = data; | |
1445 | int ret; | |
1446 | ||
1447 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1448 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1449 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1450 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1451 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1452 | if (ret != 0) | |
1453 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1454 | ret); | |
1455 | } | |
97404f2e | 1456 | |
9d0624a7 | 1457 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1458 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1459 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1460 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1461 | if (ret != 0) | |
1462 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
f1aac484 MB |
1463 | |
1464 | if (d->dev) | |
fb644e9c | 1465 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1466 | } |
1467 | ||
1468 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1469 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1470 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1471 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1472 | if (ret != 0) | |
1473 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1474 | ret); | |
1475 | } | |
1476 | } | |
97404f2e | 1477 | |
fe4fda5d MB |
1478 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1479 | bool power, bool connect) | |
1480 | { | |
1481 | /* If a connection is being made or broken then that update | |
1482 | * will have marked the peer dirty, otherwise the widgets are | |
1483 | * not connected and this update has no impact. */ | |
1484 | if (!connect) | |
1485 | return; | |
1486 | ||
1487 | /* If the peer is already in the state we're moving to then we | |
1488 | * won't have an impact on it. */ | |
1489 | if (power != peer->power) | |
75c1f891 | 1490 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1491 | } |
1492 | ||
05623c43 MB |
1493 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1494 | struct list_head *up_list, | |
1495 | struct list_head *down_list) | |
1496 | { | |
db432b41 MB |
1497 | struct snd_soc_dapm_path *path; |
1498 | ||
05623c43 MB |
1499 | if (w->power == power) |
1500 | return; | |
1501 | ||
1502 | trace_snd_soc_dapm_widget_power(w, power); | |
1503 | ||
db432b41 | 1504 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1505 | * also. |
db432b41 MB |
1506 | */ |
1507 | list_for_each_entry(path, &w->sources, list_sink) { | |
1508 | if (path->source) { | |
fe4fda5d MB |
1509 | dapm_widget_set_peer_power(path->source, power, |
1510 | path->connect); | |
db432b41 MB |
1511 | } |
1512 | } | |
f3bf3e45 MB |
1513 | switch (w->id) { |
1514 | case snd_soc_dapm_supply: | |
62ea874a | 1515 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1516 | case snd_soc_dapm_clock_supply: |
f3bf3e45 MB |
1517 | /* Supplies can't affect their outputs, only their inputs */ |
1518 | break; | |
1519 | default: | |
1520 | list_for_each_entry(path, &w->sinks, list_source) { | |
1521 | if (path->sink) { | |
1522 | dapm_widget_set_peer_power(path->sink, power, | |
1523 | path->connect); | |
1524 | } | |
db432b41 | 1525 | } |
f3bf3e45 | 1526 | break; |
db432b41 MB |
1527 | } |
1528 | ||
05623c43 MB |
1529 | if (power) |
1530 | dapm_seq_insert(w, up_list, true); | |
1531 | else | |
1532 | dapm_seq_insert(w, down_list, false); | |
1533 | ||
1534 | w->power = power; | |
1535 | } | |
1536 | ||
7c81beb0 MB |
1537 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1538 | struct list_head *up_list, | |
1539 | struct list_head *down_list) | |
1540 | { | |
7c81beb0 MB |
1541 | int power; |
1542 | ||
1543 | switch (w->id) { | |
1544 | case snd_soc_dapm_pre: | |
1545 | dapm_seq_insert(w, down_list, false); | |
1546 | break; | |
1547 | case snd_soc_dapm_post: | |
1548 | dapm_seq_insert(w, up_list, true); | |
1549 | break; | |
1550 | ||
1551 | default: | |
d805002b | 1552 | power = dapm_widget_power_check(w); |
7c81beb0 | 1553 | |
05623c43 | 1554 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1555 | break; |
1556 | } | |
1557 | } | |
1558 | ||
2b97eabc RP |
1559 | /* |
1560 | * Scan each dapm widget for complete audio path. | |
1561 | * A complete path is a route that has valid endpoints i.e.:- | |
1562 | * | |
1563 | * o DAC to output pin. | |
1564 | * o Input Pin to ADC. | |
1565 | * o Input pin to Output pin (bypass, sidetone) | |
1566 | * o DAC to ADC (loopback). | |
1567 | */ | |
ce6120cc | 1568 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1569 | { |
12ea2c78 | 1570 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1571 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1572 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1573 | LIST_HEAD(up_list); |
1574 | LIST_HEAD(down_list); | |
2955b47d | 1575 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1576 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1577 | |
84e90930 MB |
1578 | trace_snd_soc_dapm_start(card); |
1579 | ||
56fba41f | 1580 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1581 | if (d->idle_bias_off) |
1582 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1583 | else | |
1584 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1585 | } |
7be31be8 | 1586 | |
6c120e19 | 1587 | dapm_reset(card); |
9b8a83b2 | 1588 | |
6d3ddc81 | 1589 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1590 | * lists indicating if they should be powered up or down. We |
1591 | * only check widgets that have been flagged as dirty but note | |
1592 | * that new widgets may be added to the dirty list while we | |
1593 | * iterate. | |
6d3ddc81 | 1594 | */ |
db432b41 | 1595 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1596 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1597 | } |
1598 | ||
f9de6d74 | 1599 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1600 | switch (w->id) { |
1601 | case snd_soc_dapm_pre: | |
1602 | case snd_soc_dapm_post: | |
1603 | /* These widgets always need to be powered */ | |
1604 | break; | |
1605 | default: | |
1606 | list_del_init(&w->dirty); | |
1607 | break; | |
1608 | } | |
db432b41 | 1609 | |
f9de6d74 MB |
1610 | if (w->power) { |
1611 | d = w->dapm; | |
1612 | ||
1613 | /* Supplies and micbiases only bring the | |
1614 | * context up to STANDBY as unless something | |
1615 | * else is active and passing audio they | |
afe62367 MB |
1616 | * generally don't require full power. Signal |
1617 | * generators are virtual pins and have no | |
1618 | * power impact themselves. | |
f9de6d74 MB |
1619 | */ |
1620 | switch (w->id) { | |
afe62367 MB |
1621 | case snd_soc_dapm_siggen: |
1622 | break; | |
f9de6d74 | 1623 | case snd_soc_dapm_supply: |
62ea874a | 1624 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1625 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1626 | case snd_soc_dapm_micbias: |
1627 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1628 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1629 | break; | |
1630 | default: | |
1631 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1632 | break; | |
1633 | } | |
1634 | } | |
1635 | ||
1636 | } | |
1637 | ||
85a843c5 MB |
1638 | /* Force all contexts in the card to the same bias state if |
1639 | * they're not ground referenced. | |
1640 | */ | |
56fba41f | 1641 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1642 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1643 | if (d->target_bias_level > bias) |
1644 | bias = d->target_bias_level; | |
52ba67bf | 1645 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1646 | if (!d->idle_bias_off) |
1647 | d->target_bias_level = bias; | |
52ba67bf | 1648 | |
de02d078 | 1649 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1650 | |
9d0624a7 MB |
1651 | /* Run all the bias changes in parallel */ |
1652 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1653 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1654 | &async_domain); | |
1655 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1656 | |
6d3ddc81 | 1657 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1658 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1659 | |
97404f2e MB |
1660 | dapm_widget_update(dapm); |
1661 | ||
6d3ddc81 | 1662 | /* Now power up. */ |
828a842f | 1663 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1664 | |
9d0624a7 MB |
1665 | /* Run all the bias changes in parallel */ |
1666 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1667 | async_schedule_domain(dapm_post_sequence_async, d, | |
1668 | &async_domain); | |
1669 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1670 | |
8078d87f LG |
1671 | /* do we need to notify any clients that DAPM event is complete */ |
1672 | list_for_each_entry(d, &card->dapm_list, list) { | |
1673 | if (d->stream_event) | |
1674 | d->stream_event(d, event); | |
1675 | } | |
1676 | ||
fd8d3bc0 JN |
1677 | pop_dbg(dapm->dev, card->pop_time, |
1678 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1679 | pop_wait(card->pop_time); |
cb507e7e | 1680 | |
84e90930 MB |
1681 | trace_snd_soc_dapm_done(card); |
1682 | ||
42aa3418 | 1683 | return 0; |
2b97eabc RP |
1684 | } |
1685 | ||
79fb9387 | 1686 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1687 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1688 | char __user *user_buf, | |
1689 | size_t count, loff_t *ppos) | |
1690 | { | |
1691 | struct snd_soc_dapm_widget *w = file->private_data; | |
1692 | char *buf; | |
1693 | int in, out; | |
1694 | ssize_t ret; | |
1695 | struct snd_soc_dapm_path *p = NULL; | |
1696 | ||
1697 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1698 | if (!buf) | |
1699 | return -ENOMEM; | |
1700 | ||
ec2e3031 | 1701 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1702 | dapm_clear_walk(w->dapm); |
ec2e3031 | 1703 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1704 | dapm_clear_walk(w->dapm); |
79fb9387 | 1705 | |
f13ebada MB |
1706 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1707 | w->name, w->power ? "On" : "Off", | |
1708 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1709 | |
d033c36a MB |
1710 | if (w->reg >= 0) |
1711 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1712 | " - R%d(0x%x) bit %d", | |
1713 | w->reg, w->reg, w->shift); | |
1714 | ||
1715 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1716 | ||
3eef08ba MB |
1717 | if (w->sname) |
1718 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1719 | w->sname, | |
1720 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1721 | |
1722 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1723 | if (p->connected && !p->connected(w, p->sink)) |
1724 | continue; | |
1725 | ||
79fb9387 MB |
1726 | if (p->connect) |
1727 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1728 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1729 | p->name ? p->name : "static", |
1730 | p->source->name); | |
1731 | } | |
1732 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1733 | if (p->connected && !p->connected(w, p->sink)) |
1734 | continue; | |
1735 | ||
79fb9387 MB |
1736 | if (p->connect) |
1737 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1738 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1739 | p->name ? p->name : "static", |
1740 | p->sink->name); | |
1741 | } | |
1742 | ||
1743 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1744 | ||
1745 | kfree(buf); | |
1746 | return ret; | |
1747 | } | |
1748 | ||
1749 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1750 | .open = simple_open, |
79fb9387 | 1751 | .read = dapm_widget_power_read_file, |
6038f373 | 1752 | .llseek = default_llseek, |
79fb9387 MB |
1753 | }; |
1754 | ||
ef49e4fa MB |
1755 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1756 | size_t count, loff_t *ppos) | |
1757 | { | |
1758 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1759 | char *level; | |
1760 | ||
1761 | switch (dapm->bias_level) { | |
1762 | case SND_SOC_BIAS_ON: | |
1763 | level = "On\n"; | |
1764 | break; | |
1765 | case SND_SOC_BIAS_PREPARE: | |
1766 | level = "Prepare\n"; | |
1767 | break; | |
1768 | case SND_SOC_BIAS_STANDBY: | |
1769 | level = "Standby\n"; | |
1770 | break; | |
1771 | case SND_SOC_BIAS_OFF: | |
1772 | level = "Off\n"; | |
1773 | break; | |
1774 | default: | |
1775 | BUG(); | |
1776 | level = "Unknown\n"; | |
1777 | break; | |
1778 | } | |
1779 | ||
1780 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1781 | strlen(level)); | |
1782 | } | |
1783 | ||
1784 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1785 | .open = simple_open, |
ef49e4fa MB |
1786 | .read = dapm_bias_read_file, |
1787 | .llseek = default_llseek, | |
1788 | }; | |
1789 | ||
8eecaf62 LPC |
1790 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1791 | struct dentry *parent) | |
79fb9387 | 1792 | { |
79fb9387 MB |
1793 | struct dentry *d; |
1794 | ||
8eecaf62 LPC |
1795 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1796 | ||
1797 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1798 | dev_warn(dapm->dev, |
8eecaf62 | 1799 | "Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1800 | return; |
8eecaf62 | 1801 | } |
79fb9387 | 1802 | |
ef49e4fa MB |
1803 | d = debugfs_create_file("bias_level", 0444, |
1804 | dapm->debugfs_dapm, dapm, | |
1805 | &dapm_bias_fops); | |
1806 | if (!d) | |
1807 | dev_warn(dapm->dev, | |
1808 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1809 | } |
ef49e4fa | 1810 | |
d5d1e0be LPC |
1811 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1812 | { | |
1813 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1814 | struct dentry *d; | |
79fb9387 | 1815 | |
d5d1e0be LPC |
1816 | if (!dapm->debugfs_dapm || !w->name) |
1817 | return; | |
1818 | ||
1819 | d = debugfs_create_file(w->name, 0444, | |
1820 | dapm->debugfs_dapm, w, | |
1821 | &dapm_widget_power_fops); | |
1822 | if (!d) | |
1823 | dev_warn(w->dapm->dev, | |
1824 | "ASoC: Failed to create %s debugfs file\n", | |
1825 | w->name); | |
79fb9387 | 1826 | } |
d5d1e0be | 1827 | |
6c45e126 LPC |
1828 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1829 | { | |
1830 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1831 | } | |
1832 | ||
79fb9387 | 1833 | #else |
8eecaf62 LPC |
1834 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1835 | struct dentry *parent) | |
79fb9387 MB |
1836 | { |
1837 | } | |
d5d1e0be LPC |
1838 | |
1839 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1840 | { | |
1841 | } | |
1842 | ||
6c45e126 LPC |
1843 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1844 | { | |
1845 | } | |
1846 | ||
79fb9387 MB |
1847 | #endif |
1848 | ||
2b97eabc | 1849 | /* test and update the power status of a mux widget */ |
4edbb345 | 1850 | static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
40f02cd9 | 1851 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1852 | { |
1853 | struct snd_soc_dapm_path *path; | |
1854 | int found = 0; | |
1855 | ||
eff317d0 | 1856 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1857 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1858 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1859 | return -ENODEV; |
1860 | ||
2b97eabc | 1861 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1862 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1863 | if (path->kcontrol != kcontrol) |
1864 | continue; | |
1865 | ||
cb01e2b9 | 1866 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1867 | continue; |
1868 | ||
1869 | found = 1; | |
1870 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1871 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1872 | path->connect = 1; /* new connection */ |
75c1f891 | 1873 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1874 | } else { |
1875 | if (path->connect) | |
75c1f891 MB |
1876 | dapm_mark_dirty(path->source, |
1877 | "mux disconnection"); | |
2b97eabc | 1878 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1879 | } |
2b97eabc RP |
1880 | } |
1881 | ||
db432b41 | 1882 | if (found) { |
75c1f891 | 1883 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1884 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1885 | } |
2b97eabc | 1886 | |
618dae11 | 1887 | return found; |
2b97eabc | 1888 | } |
4edbb345 LG |
1889 | |
1890 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, | |
1891 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) | |
1892 | { | |
1893 | struct snd_soc_card *card = widget->dapm->card; | |
1894 | int ret; | |
1895 | ||
3cd04343 | 1896 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1897 | ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1898 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1899 | if (ret > 0) |
1900 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1901 | return ret; |
1902 | } | |
40f02cd9 | 1903 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1904 | |
1b075e3f | 1905 | /* test and update the power status of a mixer or switch widget */ |
4edbb345 | 1906 | static int soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1907 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1908 | { |
1909 | struct snd_soc_dapm_path *path; | |
1910 | int found = 0; | |
1911 | ||
1b075e3f | 1912 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1913 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1914 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1915 | return -ENODEV; |
1916 | ||
2b97eabc | 1917 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1918 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1919 | if (path->kcontrol != kcontrol) |
1920 | continue; | |
1921 | ||
1922 | /* found, now check type */ | |
1923 | found = 1; | |
283375ce | 1924 | path->connect = connect; |
75c1f891 | 1925 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
1926 | } |
1927 | ||
db432b41 | 1928 | if (found) { |
75c1f891 | 1929 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 1930 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1931 | } |
2b97eabc | 1932 | |
618dae11 | 1933 | return found; |
2b97eabc | 1934 | } |
4edbb345 LG |
1935 | |
1936 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, | |
1937 | struct snd_kcontrol *kcontrol, int connect) | |
1938 | { | |
1939 | struct snd_soc_card *card = widget->dapm->card; | |
1940 | int ret; | |
1941 | ||
3cd04343 | 1942 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1943 | ret = soc_dapm_mixer_update_power(widget, kcontrol, connect); |
1944 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1945 | if (ret > 0) |
1946 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1947 | return ret; |
1948 | } | |
40f02cd9 | 1949 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
1950 | |
1951 | /* show dapm widget status in sys fs */ | |
1952 | static ssize_t dapm_widget_show(struct device *dev, | |
1953 | struct device_attribute *attr, char *buf) | |
1954 | { | |
36ae1a96 | 1955 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 1956 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
1957 | struct snd_soc_dapm_widget *w; |
1958 | int count = 0; | |
1959 | char *state = "not set"; | |
1960 | ||
97c866de JN |
1961 | list_for_each_entry(w, &codec->card->widgets, list) { |
1962 | if (w->dapm != &codec->dapm) | |
1963 | continue; | |
2b97eabc RP |
1964 | |
1965 | /* only display widgets that burnm power */ | |
1966 | switch (w->id) { | |
1967 | case snd_soc_dapm_hp: | |
1968 | case snd_soc_dapm_mic: | |
1969 | case snd_soc_dapm_spk: | |
1970 | case snd_soc_dapm_line: | |
1971 | case snd_soc_dapm_micbias: | |
1972 | case snd_soc_dapm_dac: | |
1973 | case snd_soc_dapm_adc: | |
1974 | case snd_soc_dapm_pga: | |
d88429a6 | 1975 | case snd_soc_dapm_out_drv: |
2b97eabc | 1976 | case snd_soc_dapm_mixer: |
ca9c1aae | 1977 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1978 | case snd_soc_dapm_supply: |
62ea874a | 1979 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1980 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
1981 | if (w->name) |
1982 | count += sprintf(buf + count, "%s: %s\n", | |
1983 | w->name, w->power ? "On":"Off"); | |
1984 | break; | |
1985 | default: | |
1986 | break; | |
1987 | } | |
1988 | } | |
1989 | ||
ce6120cc | 1990 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1991 | case SND_SOC_BIAS_ON: |
1992 | state = "On"; | |
2b97eabc | 1993 | break; |
0be9898a MB |
1994 | case SND_SOC_BIAS_PREPARE: |
1995 | state = "Prepare"; | |
2b97eabc | 1996 | break; |
0be9898a MB |
1997 | case SND_SOC_BIAS_STANDBY: |
1998 | state = "Standby"; | |
2b97eabc | 1999 | break; |
0be9898a MB |
2000 | case SND_SOC_BIAS_OFF: |
2001 | state = "Off"; | |
2b97eabc RP |
2002 | break; |
2003 | } | |
2004 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2005 | ||
2006 | return count; | |
2007 | } | |
2008 | ||
2009 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2010 | ||
2011 | int snd_soc_dapm_sys_add(struct device *dev) | |
2012 | { | |
12ef193d | 2013 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2014 | } |
2015 | ||
2016 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2017 | { | |
aef90843 | 2018 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2019 | } |
2020 | ||
2021 | /* free all dapm widgets and resources */ | |
ce6120cc | 2022 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2023 | { |
2024 | struct snd_soc_dapm_widget *w, *next_w; | |
2025 | struct snd_soc_dapm_path *p, *next_p; | |
2026 | ||
97c866de JN |
2027 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2028 | if (w->dapm != dapm) | |
2029 | continue; | |
2b97eabc | 2030 | list_del(&w->list); |
8ddab3f5 JN |
2031 | /* |
2032 | * remove source and sink paths associated to this widget. | |
2033 | * While removing the path, remove reference to it from both | |
2034 | * source and sink widgets so that path is removed only once. | |
2035 | */ | |
2036 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
2037 | list_del(&p->list_sink); | |
2038 | list_del(&p->list_source); | |
2039 | list_del(&p->list); | |
2040 | kfree(p->long_name); | |
2041 | kfree(p); | |
2042 | } | |
2043 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
2044 | list_del(&p->list_sink); | |
2045 | list_del(&p->list_source); | |
2046 | list_del(&p->list); | |
2047 | kfree(p->long_name); | |
2048 | kfree(p); | |
2049 | } | |
fad59888 | 2050 | kfree(w->kcontrols); |
ead9b919 | 2051 | kfree(w->name); |
2b97eabc RP |
2052 | kfree(w); |
2053 | } | |
2b97eabc RP |
2054 | } |
2055 | ||
91a5fca4 LPC |
2056 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2057 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2058 | bool search_other_contexts) | |
a5302181 LG |
2059 | { |
2060 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2061 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2062 | |
97c866de | 2063 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2064 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2065 | if (w->dapm == dapm) |
2066 | return w; | |
2067 | else | |
2068 | fallback = w; | |
a5302181 LG |
2069 | } |
2070 | } | |
2071 | ||
91a5fca4 LPC |
2072 | if (search_other_contexts) |
2073 | return fallback; | |
2074 | ||
2075 | return NULL; | |
2076 | } | |
2077 | ||
2078 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2079 | const char *pin, int status) | |
2080 | { | |
2081 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2082 | ||
2083 | if (!w) { | |
2084 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2085 | return -EINVAL; | |
0d86733c MB |
2086 | } |
2087 | ||
1a8b2d9d MB |
2088 | if (w->connected != status) |
2089 | dapm_mark_dirty(w, "pin configuration"); | |
2090 | ||
91a5fca4 LPC |
2091 | w->connected = status; |
2092 | if (status == 0) | |
2093 | w->force = 0; | |
2094 | ||
2095 | return 0; | |
a5302181 LG |
2096 | } |
2097 | ||
2b97eabc | 2098 | /** |
a5302181 | 2099 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2100 | * @dapm: DAPM context |
2b97eabc RP |
2101 | * |
2102 | * Walks all dapm audio paths and powers widgets according to their | |
2103 | * stream or path usage. | |
2104 | * | |
2105 | * Returns 0 for success. | |
2106 | */ | |
ce6120cc | 2107 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2108 | { |
a73fb2df LG |
2109 | int ret; |
2110 | ||
4f4c0072 MB |
2111 | /* |
2112 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2113 | * silly DAPM runs during card startup. | |
2114 | */ | |
2115 | if (!dapm->card || !dapm->card->instantiated) | |
2116 | return 0; | |
2117 | ||
3cd04343 | 2118 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
a73fb2df LG |
2119 | ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2120 | mutex_unlock(&dapm->card->dapm_mutex); | |
2121 | return ret; | |
2b97eabc | 2122 | } |
a5302181 | 2123 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2124 | |
ce6120cc | 2125 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 2126 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
2127 | { |
2128 | struct snd_soc_dapm_path *path; | |
2129 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 2130 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 2131 | const char *sink; |
215edda3 | 2132 | const char *control = route->control; |
ead9b919 JN |
2133 | const char *source; |
2134 | char prefixed_sink[80]; | |
2135 | char prefixed_source[80]; | |
2b97eabc RP |
2136 | int ret = 0; |
2137 | ||
88e8b9a8 | 2138 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
2139 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2140 | dapm->codec->name_prefix, route->sink); | |
2141 | sink = prefixed_sink; | |
2142 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2143 | dapm->codec->name_prefix, route->source); | |
2144 | source = prefixed_source; | |
2145 | } else { | |
2146 | sink = route->sink; | |
2147 | source = route->source; | |
2148 | } | |
2149 | ||
97c866de JN |
2150 | /* |
2151 | * find src and dest widgets over all widgets but favor a widget from | |
2152 | * current DAPM context | |
2153 | */ | |
2154 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 2155 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
2156 | wtsink = w; |
2157 | if (w->dapm == dapm) | |
2158 | wsink = w; | |
2b97eabc RP |
2159 | continue; |
2160 | } | |
2161 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
2162 | wtsource = w; |
2163 | if (w->dapm == dapm) | |
2164 | wsource = w; | |
2b97eabc RP |
2165 | } |
2166 | } | |
97c866de JN |
2167 | /* use widget from another DAPM context if not found from this */ |
2168 | if (!wsink) | |
2169 | wsink = wtsink; | |
2170 | if (!wsource) | |
2171 | wsource = wtsource; | |
2b97eabc RP |
2172 | |
2173 | if (wsource == NULL || wsink == NULL) | |
2174 | return -ENODEV; | |
2175 | ||
2176 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2177 | if (!path) | |
2178 | return -ENOMEM; | |
2179 | ||
2180 | path->source = wsource; | |
2181 | path->sink = wsink; | |
215edda3 | 2182 | path->connected = route->connected; |
2b97eabc RP |
2183 | INIT_LIST_HEAD(&path->list); |
2184 | INIT_LIST_HEAD(&path->list_source); | |
2185 | INIT_LIST_HEAD(&path->list_sink); | |
2186 | ||
2187 | /* check for external widgets */ | |
2188 | if (wsink->id == snd_soc_dapm_input) { | |
2189 | if (wsource->id == snd_soc_dapm_micbias || | |
2190 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2191 | wsource->id == snd_soc_dapm_line || |
2192 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2193 | wsink->ext = 1; |
2194 | } | |
2195 | if (wsource->id == snd_soc_dapm_output) { | |
2196 | if (wsink->id == snd_soc_dapm_spk || | |
2197 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2198 | wsink->id == snd_soc_dapm_line || |
2199 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2200 | wsource->ext = 1; |
2201 | } | |
2202 | ||
2203 | /* connect static paths */ | |
2204 | if (control == NULL) { | |
8ddab3f5 | 2205 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2206 | list_add(&path->list_sink, &wsink->sources); |
2207 | list_add(&path->list_source, &wsource->sinks); | |
2208 | path->connect = 1; | |
2209 | return 0; | |
2210 | } | |
2211 | ||
2212 | /* connect dynamic paths */ | |
dc2bea61 | 2213 | switch (wsink->id) { |
2b97eabc RP |
2214 | case snd_soc_dapm_adc: |
2215 | case snd_soc_dapm_dac: | |
2216 | case snd_soc_dapm_pga: | |
d88429a6 | 2217 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2218 | case snd_soc_dapm_input: |
2219 | case snd_soc_dapm_output: | |
1ab97c8c | 2220 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2221 | case snd_soc_dapm_micbias: |
2222 | case snd_soc_dapm_vmid: | |
2223 | case snd_soc_dapm_pre: | |
2224 | case snd_soc_dapm_post: | |
246d0a17 | 2225 | case snd_soc_dapm_supply: |
62ea874a | 2226 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2227 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2228 | case snd_soc_dapm_aif_in: |
2229 | case snd_soc_dapm_aif_out: | |
888df395 | 2230 | case snd_soc_dapm_dai: |
c74184ed | 2231 | case snd_soc_dapm_dai_link: |
8ddab3f5 | 2232 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2233 | list_add(&path->list_sink, &wsink->sources); |
2234 | list_add(&path->list_source, &wsource->sinks); | |
2235 | path->connect = 1; | |
2236 | return 0; | |
2237 | case snd_soc_dapm_mux: | |
24ff33ac | 2238 | case snd_soc_dapm_virt_mux: |
74155556 | 2239 | case snd_soc_dapm_value_mux: |
ce6120cc | 2240 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2241 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2242 | if (ret != 0) |
2243 | goto err; | |
2244 | break; | |
2245 | case snd_soc_dapm_switch: | |
2246 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2247 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2248 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2249 | if (ret != 0) |
2250 | goto err; | |
2251 | break; | |
2252 | case snd_soc_dapm_hp: | |
2253 | case snd_soc_dapm_mic: | |
2254 | case snd_soc_dapm_line: | |
2255 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2256 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2257 | list_add(&path->list_sink, &wsink->sources); |
2258 | list_add(&path->list_source, &wsource->sinks); | |
2259 | path->connect = 0; | |
2260 | return 0; | |
2261 | } | |
fabd0384 MB |
2262 | |
2263 | dapm_mark_dirty(wsource, "Route added"); | |
2264 | dapm_mark_dirty(wsink, "Route added"); | |
2265 | ||
2b97eabc RP |
2266 | return 0; |
2267 | ||
2268 | err: | |
f7d41ae8 JN |
2269 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
2270 | source, control, sink); | |
2b97eabc RP |
2271 | kfree(path); |
2272 | return ret; | |
2273 | } | |
105f1c28 | 2274 | |
efcc3c61 MB |
2275 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2276 | const struct snd_soc_dapm_route *route) | |
2277 | { | |
2278 | struct snd_soc_dapm_path *path, *p; | |
2279 | const char *sink; | |
2280 | const char *source; | |
2281 | char prefixed_sink[80]; | |
2282 | char prefixed_source[80]; | |
2283 | ||
2284 | if (route->control) { | |
2285 | dev_err(dapm->dev, | |
2286 | "Removal of routes with controls not supported\n"); | |
2287 | return -EINVAL; | |
2288 | } | |
2289 | ||
2290 | if (dapm->codec && dapm->codec->name_prefix) { | |
2291 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2292 | dapm->codec->name_prefix, route->sink); | |
2293 | sink = prefixed_sink; | |
2294 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2295 | dapm->codec->name_prefix, route->source); | |
2296 | source = prefixed_source; | |
2297 | } else { | |
2298 | sink = route->sink; | |
2299 | source = route->source; | |
2300 | } | |
2301 | ||
2302 | path = NULL; | |
2303 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2304 | if (strcmp(p->source->name, source) != 0) | |
2305 | continue; | |
2306 | if (strcmp(p->sink->name, sink) != 0) | |
2307 | continue; | |
2308 | path = p; | |
2309 | break; | |
2310 | } | |
2311 | ||
2312 | if (path) { | |
2313 | dapm_mark_dirty(path->source, "Route removed"); | |
2314 | dapm_mark_dirty(path->sink, "Route removed"); | |
2315 | ||
2316 | list_del(&path->list); | |
2317 | list_del(&path->list_sink); | |
2318 | list_del(&path->list_source); | |
2319 | kfree(path); | |
2320 | } else { | |
2321 | dev_warn(dapm->dev, "Route %s->%s does not exist\n", | |
2322 | source, sink); | |
2323 | } | |
2324 | ||
2325 | return 0; | |
2326 | } | |
2327 | ||
105f1c28 MB |
2328 | /** |
2329 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2330 | * @dapm: DAPM context |
105f1c28 MB |
2331 | * @route: audio routes |
2332 | * @num: number of routes | |
2333 | * | |
2334 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2335 | * the widget receiving the audio signal, whilst the source is the sender | |
2336 | * of the audio signal. | |
2337 | * | |
2338 | * Returns 0 for success else error. On error all resources can be freed | |
2339 | * with a call to snd_soc_card_free(). | |
2340 | */ | |
ce6120cc | 2341 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2342 | const struct snd_soc_dapm_route *route, int num) |
2343 | { | |
62d4a4b9 | 2344 | int i, r, ret = 0; |
105f1c28 | 2345 | |
a73fb2df | 2346 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2347 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2348 | r = snd_soc_dapm_add_route(dapm, route); |
2349 | if (r < 0) { | |
f7d41ae8 JN |
2350 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
2351 | route->source, route->sink); | |
62d4a4b9 | 2352 | ret = r; |
105f1c28 MB |
2353 | } |
2354 | route++; | |
2355 | } | |
a73fb2df | 2356 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2357 | |
60884c27 | 2358 | return ret; |
105f1c28 MB |
2359 | } |
2360 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2361 | ||
efcc3c61 MB |
2362 | /** |
2363 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2364 | * @dapm: DAPM context | |
2365 | * @route: audio routes | |
2366 | * @num: number of routes | |
2367 | * | |
2368 | * Removes routes from the DAPM context. | |
2369 | */ | |
2370 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2371 | const struct snd_soc_dapm_route *route, int num) | |
2372 | { | |
2373 | int i, ret = 0; | |
2374 | ||
2375 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2376 | for (i = 0; i < num; i++) { | |
2377 | snd_soc_dapm_del_route(dapm, route); | |
2378 | route++; | |
2379 | } | |
2380 | mutex_unlock(&dapm->card->dapm_mutex); | |
2381 | ||
2382 | return ret; | |
2383 | } | |
2384 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2385 | ||
bf3a9e13 MB |
2386 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2387 | const struct snd_soc_dapm_route *route) | |
2388 | { | |
2389 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2390 | route->source, | |
2391 | true); | |
2392 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2393 | route->sink, | |
2394 | true); | |
2395 | struct snd_soc_dapm_path *path; | |
2396 | int count = 0; | |
2397 | ||
2398 | if (!source) { | |
2399 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
2400 | route->source); | |
2401 | return -ENODEV; | |
2402 | } | |
2403 | ||
2404 | if (!sink) { | |
2405 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
2406 | route->sink); | |
2407 | return -ENODEV; | |
2408 | } | |
2409 | ||
2410 | if (route->control || route->connected) | |
2411 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
2412 | route->source, route->sink); | |
2413 | ||
2414 | list_for_each_entry(path, &source->sinks, list_source) { | |
2415 | if (path->sink == sink) { | |
2416 | path->weak = 1; | |
2417 | count++; | |
2418 | } | |
2419 | } | |
2420 | ||
2421 | if (count == 0) | |
2422 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
2423 | route->source, route->sink); | |
2424 | if (count > 1) | |
2425 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
2426 | count, route->source, route->sink); | |
2427 | ||
2428 | return 0; | |
2429 | } | |
2430 | ||
2431 | /** | |
2432 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2433 | * @dapm: DAPM context | |
2434 | * @route: audio routes | |
2435 | * @num: number of routes | |
2436 | * | |
2437 | * Mark existing routes matching those specified in the passed array | |
2438 | * as being weak, meaning that they are ignored for the purpose of | |
2439 | * power decisions. The main intended use case is for sidetone paths | |
2440 | * which couple audio between other independent paths if they are both | |
2441 | * active in order to make the combination work better at the user | |
2442 | * level but which aren't intended to be "used". | |
2443 | * | |
2444 | * Note that CODEC drivers should not use this as sidetone type paths | |
2445 | * can frequently also be used as bypass paths. | |
2446 | */ | |
2447 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2448 | const struct snd_soc_dapm_route *route, int num) | |
2449 | { | |
2450 | int i, err; | |
2451 | int ret = 0; | |
2452 | ||
a73fb2df | 2453 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2454 | for (i = 0; i < num; i++) { |
2455 | err = snd_soc_dapm_weak_route(dapm, route); | |
2456 | if (err) | |
2457 | ret = err; | |
2458 | route++; | |
2459 | } | |
a73fb2df | 2460 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2461 | |
2462 | return ret; | |
2463 | } | |
2464 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2465 | ||
2b97eabc RP |
2466 | /** |
2467 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2468 | * @dapm: DAPM context |
2b97eabc RP |
2469 | * |
2470 | * Checks the codec for any new dapm widgets and creates them if found. | |
2471 | * | |
2472 | * Returns 0 for success. | |
2473 | */ | |
ce6120cc | 2474 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2475 | { |
2476 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2477 | unsigned int val; |
2b97eabc | 2478 | |
a73fb2df LG |
2479 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
2480 | ||
97c866de | 2481 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2482 | { |
2483 | if (w->new) | |
2484 | continue; | |
2485 | ||
fad59888 SW |
2486 | if (w->num_kcontrols) { |
2487 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2488 | sizeof(struct snd_kcontrol *), | |
2489 | GFP_KERNEL); | |
a73fb2df LG |
2490 | if (!w->kcontrols) { |
2491 | mutex_unlock(&dapm->card->dapm_mutex); | |
fad59888 | 2492 | return -ENOMEM; |
a73fb2df | 2493 | } |
fad59888 SW |
2494 | } |
2495 | ||
2b97eabc RP |
2496 | switch(w->id) { |
2497 | case snd_soc_dapm_switch: | |
2498 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2499 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2500 | dapm_new_mixer(w); |
2b97eabc RP |
2501 | break; |
2502 | case snd_soc_dapm_mux: | |
24ff33ac | 2503 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2504 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2505 | dapm_new_mux(w); |
2b97eabc | 2506 | break; |
2b97eabc | 2507 | case snd_soc_dapm_pga: |
d88429a6 | 2508 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2509 | dapm_new_pga(w); |
2b97eabc | 2510 | break; |
7ca3a18b | 2511 | default: |
2b97eabc RP |
2512 | break; |
2513 | } | |
b66a70d5 MB |
2514 | |
2515 | /* Read the initial power state from the device */ | |
2516 | if (w->reg >= 0) { | |
0445bdf4 | 2517 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2518 | val &= 1 << w->shift; |
2519 | if (w->invert) | |
2520 | val = !val; | |
2521 | ||
2522 | if (val) | |
2523 | w->power = 1; | |
2524 | } | |
2525 | ||
2b97eabc | 2526 | w->new = 1; |
d5d1e0be | 2527 | |
7508b12a | 2528 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2529 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2530 | } |
2531 | ||
ce6120cc | 2532 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df | 2533 | mutex_unlock(&dapm->card->dapm_mutex); |
2b97eabc RP |
2534 | return 0; |
2535 | } | |
2536 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2537 | ||
2538 | /** | |
2539 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2540 | * @kcontrol: mixer control | |
ac11a2b3 | 2541 | * @ucontrol: control element information |
2b97eabc RP |
2542 | * |
2543 | * Callback to get the value of a dapm mixer control. | |
2544 | * | |
2545 | * Returns 0 for success. | |
2546 | */ | |
2547 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2548 | struct snd_ctl_elem_value *ucontrol) | |
2549 | { | |
fafd2176 SW |
2550 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2551 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2552 | struct soc_mixer_control *mc = |
2553 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2554 | unsigned int reg = mc->reg; |
2555 | unsigned int shift = mc->shift; | |
4eaa9819 | 2556 | int max = mc->max; |
815ecf8d | 2557 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 BT |
2558 | unsigned int invert = mc->invert; |
2559 | ||
2560 | if (snd_soc_volsw_is_stereo(mc)) | |
2561 | dev_warn(widget->dapm->dev, | |
2562 | "Control '%s' is stereo, which is not supported\n", | |
2563 | kcontrol->id.name); | |
2b97eabc | 2564 | |
2b97eabc RP |
2565 | ucontrol->value.integer.value[0] = |
2566 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
da602ab8 | 2567 | if (invert) |
2b97eabc | 2568 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2569 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2570 | |
2571 | return 0; | |
2572 | } | |
2573 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2574 | ||
2575 | /** | |
2576 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2577 | * @kcontrol: mixer control | |
ac11a2b3 | 2578 | * @ucontrol: control element information |
2b97eabc RP |
2579 | * |
2580 | * Callback to set the value of a dapm mixer control. | |
2581 | * | |
2582 | * Returns 0 for success. | |
2583 | */ | |
2584 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2585 | struct snd_ctl_elem_value *ucontrol) | |
2586 | { | |
fafd2176 SW |
2587 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2588 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2589 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2590 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2591 | struct soc_mixer_control *mc = |
2592 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2593 | unsigned int reg = mc->reg; |
2594 | unsigned int shift = mc->shift; | |
4eaa9819 | 2595 | int max = mc->max; |
815ecf8d JS |
2596 | unsigned int mask = (1 << fls(max)) - 1; |
2597 | unsigned int invert = mc->invert; | |
e9cf7049 | 2598 | unsigned int val; |
97404f2e MB |
2599 | int connect, change; |
2600 | struct snd_soc_dapm_update update; | |
fafd2176 | 2601 | int wi; |
2b97eabc | 2602 | |
da602ab8 BT |
2603 | if (snd_soc_volsw_is_stereo(mc)) |
2604 | dev_warn(widget->dapm->dev, | |
2605 | "Control '%s' is stereo, which is not supported\n", | |
2606 | kcontrol->id.name); | |
2607 | ||
2b97eabc | 2608 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2609 | connect = !!val; |
2b97eabc RP |
2610 | |
2611 | if (invert) | |
a7a4ac86 | 2612 | val = max - val; |
e9cf7049 | 2613 | mask = mask << shift; |
2b97eabc | 2614 | val = val << shift; |
2b97eabc | 2615 | |
3cd04343 | 2616 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2617 | |
e9cf7049 | 2618 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2619 | if (change) { |
fafd2176 SW |
2620 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2621 | widget = wlist->widgets[wi]; | |
283375ce | 2622 | |
fafd2176 | 2623 | widget->value = val; |
97404f2e | 2624 | |
fafd2176 SW |
2625 | update.kcontrol = kcontrol; |
2626 | update.widget = widget; | |
2627 | update.reg = reg; | |
2628 | update.mask = mask; | |
2629 | update.val = val; | |
2630 | widget->dapm->update = &update; | |
97404f2e | 2631 | |
4edbb345 | 2632 | soc_dapm_mixer_update_power(widget, kcontrol, connect); |
fafd2176 SW |
2633 | |
2634 | widget->dapm->update = NULL; | |
2635 | } | |
283375ce MB |
2636 | } |
2637 | ||
a73fb2df | 2638 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2639 | return 0; |
2b97eabc RP |
2640 | } |
2641 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2642 | ||
2643 | /** | |
2644 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2645 | * @kcontrol: mixer control | |
ac11a2b3 | 2646 | * @ucontrol: control element information |
2b97eabc RP |
2647 | * |
2648 | * Callback to get the value of a dapm enumerated double mixer control. | |
2649 | * | |
2650 | * Returns 0 for success. | |
2651 | */ | |
2652 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2653 | struct snd_ctl_elem_value *ucontrol) | |
2654 | { | |
fafd2176 SW |
2655 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2656 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2657 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2658 | unsigned int val, bitmask; |
2b97eabc | 2659 | |
f8ba0b7b | 2660 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
2661 | ; |
2662 | val = snd_soc_read(widget->codec, e->reg); | |
2663 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
2664 | if (e->shift_l != e->shift_r) | |
2665 | ucontrol->value.enumerated.item[1] = | |
2666 | (val >> e->shift_r) & (bitmask - 1); | |
2667 | ||
2668 | return 0; | |
2669 | } | |
2670 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2671 | ||
2672 | /** | |
2673 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2674 | * @kcontrol: mixer control | |
ac11a2b3 | 2675 | * @ucontrol: control element information |
2b97eabc RP |
2676 | * |
2677 | * Callback to set the value of a dapm enumerated double mixer control. | |
2678 | * | |
2679 | * Returns 0 for success. | |
2680 | */ | |
2681 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2682 | struct snd_ctl_elem_value *ucontrol) | |
2683 | { | |
fafd2176 SW |
2684 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2685 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2686 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2687 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2688 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2689 | unsigned int val, mux, change; |
46f5822f | 2690 | unsigned int mask, bitmask; |
97404f2e | 2691 | struct snd_soc_dapm_update update; |
fafd2176 | 2692 | int wi; |
2b97eabc | 2693 | |
f8ba0b7b | 2694 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 2695 | ; |
f8ba0b7b | 2696 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2697 | return -EINVAL; |
2698 | mux = ucontrol->value.enumerated.item[0]; | |
2699 | val = mux << e->shift_l; | |
2700 | mask = (bitmask - 1) << e->shift_l; | |
2701 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2702 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2703 | return -EINVAL; |
2704 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2705 | mask |= (bitmask - 1) << e->shift_r; | |
2706 | } | |
2707 | ||
3cd04343 | 2708 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2709 | |
3a65577d | 2710 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2711 | if (change) { |
2712 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2713 | widget = wlist->widgets[wi]; | |
2714 | ||
2715 | widget->value = val; | |
1642e3d4 | 2716 | |
fafd2176 SW |
2717 | update.kcontrol = kcontrol; |
2718 | update.widget = widget; | |
2719 | update.reg = e->reg; | |
2720 | update.mask = mask; | |
2721 | update.val = val; | |
2722 | widget->dapm->update = &update; | |
1642e3d4 | 2723 | |
4edbb345 | 2724 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1642e3d4 | 2725 | |
fafd2176 SW |
2726 | widget->dapm->update = NULL; |
2727 | } | |
2728 | } | |
2b97eabc | 2729 | |
a73fb2df | 2730 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2731 | return change; |
2b97eabc RP |
2732 | } |
2733 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2734 | ||
d2b247a8 MB |
2735 | /** |
2736 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2737 | * @kcontrol: mixer control | |
2738 | * @ucontrol: control element information | |
2739 | * | |
2740 | * Returns 0 for success. | |
2741 | */ | |
2742 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2743 | struct snd_ctl_elem_value *ucontrol) | |
2744 | { | |
fafd2176 SW |
2745 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2746 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2747 | |
2748 | ucontrol->value.enumerated.item[0] = widget->value; | |
2749 | ||
2750 | return 0; | |
2751 | } | |
2752 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2753 | ||
2754 | /** | |
2755 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2756 | * @kcontrol: mixer control | |
2757 | * @ucontrol: control element information | |
2758 | * | |
2759 | * Returns 0 for success. | |
2760 | */ | |
2761 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2762 | struct snd_ctl_elem_value *ucontrol) | |
2763 | { | |
fafd2176 SW |
2764 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2765 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2766 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2767 | struct snd_soc_card *card = codec->card; |
d2b247a8 MB |
2768 | struct soc_enum *e = |
2769 | (struct soc_enum *)kcontrol->private_value; | |
2770 | int change; | |
2771 | int ret = 0; | |
fafd2176 | 2772 | int wi; |
d2b247a8 MB |
2773 | |
2774 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2775 | return -EINVAL; | |
2776 | ||
3cd04343 | 2777 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 MB |
2778 | |
2779 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2780 | if (change) { |
2781 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2782 | widget = wlist->widgets[wi]; | |
2783 | ||
2784 | widget->value = ucontrol->value.enumerated.item[0]; | |
2785 | ||
4edbb345 | 2786 | soc_dapm_mux_update_power(widget, kcontrol, widget->value, e); |
fafd2176 SW |
2787 | } |
2788 | } | |
d2b247a8 | 2789 | |
a73fb2df | 2790 | mutex_unlock(&card->dapm_mutex); |
d2b247a8 MB |
2791 | return ret; |
2792 | } | |
2793 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2794 | ||
2e72f8e3 PU |
2795 | /** |
2796 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2797 | * callback | |
2798 | * @kcontrol: mixer control | |
2799 | * @ucontrol: control element information | |
2800 | * | |
2801 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2802 | * | |
2803 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2804 | * used for handling bitfield coded enumeration for example. | |
2805 | * | |
2806 | * Returns 0 for success. | |
2807 | */ | |
2808 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2809 | struct snd_ctl_elem_value *ucontrol) | |
2810 | { | |
fafd2176 SW |
2811 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2812 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2813 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2814 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2815 | |
2816 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2817 | val = (reg_val >> e->shift_l) & e->mask; | |
2818 | for (mux = 0; mux < e->max; mux++) { | |
2819 | if (val == e->values[mux]) | |
2820 | break; | |
2821 | } | |
2822 | ucontrol->value.enumerated.item[0] = mux; | |
2823 | if (e->shift_l != e->shift_r) { | |
2824 | val = (reg_val >> e->shift_r) & e->mask; | |
2825 | for (mux = 0; mux < e->max; mux++) { | |
2826 | if (val == e->values[mux]) | |
2827 | break; | |
2828 | } | |
2829 | ucontrol->value.enumerated.item[1] = mux; | |
2830 | } | |
2831 | ||
2832 | return 0; | |
2833 | } | |
2834 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2835 | ||
2836 | /** | |
2837 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2838 | * callback | |
2839 | * @kcontrol: mixer control | |
2840 | * @ucontrol: control element information | |
2841 | * | |
2842 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2843 | * | |
2844 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2845 | * used for handling bitfield coded enumeration for example. | |
2846 | * | |
2847 | * Returns 0 for success. | |
2848 | */ | |
2849 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2850 | struct snd_ctl_elem_value *ucontrol) | |
2851 | { | |
fafd2176 SW |
2852 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2853 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2854 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2855 | struct snd_soc_card *card = codec->card; |
74155556 | 2856 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2857 | unsigned int val, mux, change; |
46f5822f | 2858 | unsigned int mask; |
97404f2e | 2859 | struct snd_soc_dapm_update update; |
fafd2176 | 2860 | int wi; |
2e72f8e3 PU |
2861 | |
2862 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2863 | return -EINVAL; | |
2864 | mux = ucontrol->value.enumerated.item[0]; | |
2865 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2866 | mask = e->mask << e->shift_l; | |
2867 | if (e->shift_l != e->shift_r) { | |
2868 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2869 | return -EINVAL; | |
2870 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2871 | mask |= e->mask << e->shift_r; | |
2872 | } | |
2873 | ||
3cd04343 | 2874 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2875 | |
3a65577d | 2876 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2877 | if (change) { |
2878 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2879 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2880 | |
fafd2176 | 2881 | widget->value = val; |
1642e3d4 | 2882 | |
fafd2176 SW |
2883 | update.kcontrol = kcontrol; |
2884 | update.widget = widget; | |
2885 | update.reg = e->reg; | |
2886 | update.mask = mask; | |
2887 | update.val = val; | |
2888 | widget->dapm->update = &update; | |
1642e3d4 | 2889 | |
4edbb345 | 2890 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
fafd2176 SW |
2891 | |
2892 | widget->dapm->update = NULL; | |
2893 | } | |
2894 | } | |
2e72f8e3 | 2895 | |
a73fb2df | 2896 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2897 | return change; |
2e72f8e3 PU |
2898 | } |
2899 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2900 | ||
8b37dbd2 MB |
2901 | /** |
2902 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2903 | * | |
2904 | * @kcontrol: mixer control | |
2905 | * @uinfo: control element information | |
2906 | * | |
2907 | * Callback to provide information about a pin switch control. | |
2908 | */ | |
2909 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2910 | struct snd_ctl_elem_info *uinfo) | |
2911 | { | |
2912 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2913 | uinfo->count = 1; | |
2914 | uinfo->value.integer.min = 0; | |
2915 | uinfo->value.integer.max = 1; | |
2916 | ||
2917 | return 0; | |
2918 | } | |
2919 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2920 | ||
2921 | /** | |
2922 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2923 | * | |
2924 | * @kcontrol: mixer control | |
2925 | * @ucontrol: Value | |
2926 | */ | |
2927 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2928 | struct snd_ctl_elem_value *ucontrol) | |
2929 | { | |
48a8c394 | 2930 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2931 | const char *pin = (const char *)kcontrol->private_value; |
2932 | ||
3cd04343 | 2933 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2934 | |
2935 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2936 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2937 | |
a73fb2df | 2938 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
2939 | |
2940 | return 0; | |
2941 | } | |
2942 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2943 | ||
2944 | /** | |
2945 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2946 | * | |
2947 | * @kcontrol: mixer control | |
2948 | * @ucontrol: Value | |
2949 | */ | |
2950 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2951 | struct snd_ctl_elem_value *ucontrol) | |
2952 | { | |
48a8c394 | 2953 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2954 | const char *pin = (const char *)kcontrol->private_value; |
2955 | ||
3cd04343 | 2956 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2957 | |
2958 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 2959 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 2960 | else |
48a8c394 | 2961 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 2962 | |
a73fb2df | 2963 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 2964 | |
a73fb2df | 2965 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
2966 | return 0; |
2967 | } | |
2968 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2969 | ||
5ba06fc9 MB |
2970 | static struct snd_soc_dapm_widget * |
2971 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
2972 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
2973 | { |
2974 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2975 | size_t name_len; |
62ea874a | 2976 | int ret; |
2b97eabc RP |
2977 | |
2978 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 2979 | return NULL; |
2b97eabc | 2980 | |
62ea874a MB |
2981 | switch (w->id) { |
2982 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
2983 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
2984 | if (IS_ERR(w->regulator)) { | |
2985 | ret = PTR_ERR(w->regulator); | |
62ea874a MB |
2986 | dev_err(dapm->dev, "Failed to request %s: %d\n", |
2987 | w->name, ret); | |
5ba06fc9 | 2988 | return NULL; |
62ea874a MB |
2989 | } |
2990 | break; | |
d7e7eb91 | 2991 | case snd_soc_dapm_clock_supply: |
165961ef | 2992 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 2993 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
2994 | if (IS_ERR(w->clk)) { |
2995 | ret = PTR_ERR(w->clk); | |
2996 | dev_err(dapm->dev, "Failed to request %s: %d\n", | |
2997 | w->name, ret); | |
2998 | return NULL; | |
2999 | } | |
ec02995a MB |
3000 | #else |
3001 | return NULL; | |
3002 | #endif | |
d7e7eb91 | 3003 | break; |
62ea874a MB |
3004 | default: |
3005 | break; | |
3006 | } | |
2b97eabc | 3007 | |
ead9b919 | 3008 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 3009 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
3010 | name_len += 1 + strlen(dapm->codec->name_prefix); |
3011 | w->name = kmalloc(name_len, GFP_KERNEL); | |
3012 | if (w->name == NULL) { | |
3013 | kfree(w); | |
5ba06fc9 | 3014 | return NULL; |
ead9b919 | 3015 | } |
88e8b9a8 | 3016 | if (dapm->codec && dapm->codec->name_prefix) |
888df395 | 3017 | snprintf((char *)w->name, name_len, "%s %s", |
ead9b919 JN |
3018 | dapm->codec->name_prefix, widget->name); |
3019 | else | |
888df395 | 3020 | snprintf((char *)w->name, name_len, "%s", widget->name); |
ead9b919 | 3021 | |
7ca3a18b MB |
3022 | switch (w->id) { |
3023 | case snd_soc_dapm_switch: | |
3024 | case snd_soc_dapm_mixer: | |
3025 | case snd_soc_dapm_mixer_named_ctl: | |
3026 | w->power_check = dapm_generic_check_power; | |
3027 | break; | |
3028 | case snd_soc_dapm_mux: | |
3029 | case snd_soc_dapm_virt_mux: | |
3030 | case snd_soc_dapm_value_mux: | |
3031 | w->power_check = dapm_generic_check_power; | |
3032 | break; | |
3033 | case snd_soc_dapm_adc: | |
3034 | case snd_soc_dapm_aif_out: | |
3035 | w->power_check = dapm_adc_check_power; | |
3036 | break; | |
3037 | case snd_soc_dapm_dac: | |
3038 | case snd_soc_dapm_aif_in: | |
3039 | w->power_check = dapm_dac_check_power; | |
3040 | break; | |
3041 | case snd_soc_dapm_pga: | |
3042 | case snd_soc_dapm_out_drv: | |
3043 | case snd_soc_dapm_input: | |
3044 | case snd_soc_dapm_output: | |
3045 | case snd_soc_dapm_micbias: | |
3046 | case snd_soc_dapm_spk: | |
3047 | case snd_soc_dapm_hp: | |
3048 | case snd_soc_dapm_mic: | |
3049 | case snd_soc_dapm_line: | |
c74184ed | 3050 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3051 | w->power_check = dapm_generic_check_power; |
3052 | break; | |
3053 | case snd_soc_dapm_supply: | |
62ea874a | 3054 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3055 | case snd_soc_dapm_clock_supply: |
7ca3a18b MB |
3056 | w->power_check = dapm_supply_check_power; |
3057 | break; | |
888df395 MB |
3058 | case snd_soc_dapm_dai: |
3059 | w->power_check = dapm_dai_check_power; | |
3060 | break; | |
7ca3a18b MB |
3061 | default: |
3062 | w->power_check = dapm_always_on_check_power; | |
3063 | break; | |
3064 | } | |
3065 | ||
97c866de | 3066 | dapm->n_widgets++; |
ce6120cc LG |
3067 | w->dapm = dapm; |
3068 | w->codec = dapm->codec; | |
b7950641 | 3069 | w->platform = dapm->platform; |
2b97eabc RP |
3070 | INIT_LIST_HEAD(&w->sources); |
3071 | INIT_LIST_HEAD(&w->sinks); | |
3072 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3073 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3074 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3075 | |
3076 | /* machine layer set ups unconnected pins and insertions */ | |
3077 | w->connected = 1; | |
5ba06fc9 | 3078 | return w; |
2b97eabc | 3079 | } |
2b97eabc | 3080 | |
4ba1327a MB |
3081 | /** |
3082 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3083 | * @dapm: DAPM context |
4ba1327a MB |
3084 | * @widget: widget array |
3085 | * @num: number of widgets | |
3086 | * | |
3087 | * Creates new DAPM controls based upon the templates. | |
3088 | * | |
3089 | * Returns 0 for success else error. | |
3090 | */ | |
ce6120cc | 3091 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3092 | const struct snd_soc_dapm_widget *widget, |
3093 | int num) | |
3094 | { | |
5ba06fc9 MB |
3095 | struct snd_soc_dapm_widget *w; |
3096 | int i; | |
60884c27 | 3097 | int ret = 0; |
4ba1327a | 3098 | |
a73fb2df | 3099 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3100 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3101 | w = snd_soc_dapm_new_control(dapm, widget); |
3102 | if (!w) { | |
f7d41ae8 | 3103 | dev_err(dapm->dev, |
5ba06fc9 MB |
3104 | "ASoC: Failed to create DAPM control %s\n", |
3105 | widget->name); | |
60884c27 DC |
3106 | ret = -ENOMEM; |
3107 | break; | |
b8b33cb5 | 3108 | } |
4ba1327a MB |
3109 | widget++; |
3110 | } | |
a73fb2df | 3111 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3112 | return ret; |
4ba1327a MB |
3113 | } |
3114 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3115 | ||
c74184ed MB |
3116 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3117 | struct snd_kcontrol *kcontrol, int event) | |
3118 | { | |
3119 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3120 | struct snd_soc_dai *source, *sink; | |
3121 | const struct snd_soc_pcm_stream *config = w->params; | |
3122 | struct snd_pcm_substream substream; | |
9747cec2 | 3123 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3124 | u64 fmt; |
3125 | int ret; | |
3126 | ||
3127 | BUG_ON(!config); | |
3128 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3129 | ||
3130 | /* We only support a single source and sink, pick the first */ | |
3131 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3132 | list_sink); | |
3133 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3134 | list_source); | |
3135 | ||
3136 | BUG_ON(!source_p || !sink_p); | |
3137 | BUG_ON(!sink_p->source || !source_p->sink); | |
3138 | BUG_ON(!source_p->source || !sink_p->sink); | |
3139 | ||
3140 | source = source_p->source->priv; | |
3141 | sink = sink_p->sink->priv; | |
3142 | ||
3143 | /* Be a little careful as we don't want to overflow the mask array */ | |
3144 | if (config->formats) { | |
3145 | fmt = ffs(config->formats) - 1; | |
3146 | } else { | |
516541a0 | 3147 | dev_warn(w->dapm->dev, "Invalid format %llx specified\n", |
c74184ed MB |
3148 | config->formats); |
3149 | fmt = 0; | |
3150 | } | |
3151 | ||
3152 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3153 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3154 | if (!params) { | |
3155 | ret = -ENOMEM; | |
3156 | goto out; | |
3157 | } | |
3158 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3159 | |
9747cec2 | 3160 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3161 | config->rate_min; |
9747cec2 | 3162 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3163 | config->rate_max; |
3164 | ||
9747cec2 | 3165 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3166 | = config->channels_min; |
9747cec2 | 3167 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3168 | = config->channels_max; |
3169 | ||
3170 | memset(&substream, 0, sizeof(substream)); | |
3171 | ||
3172 | switch (event) { | |
3173 | case SND_SOC_DAPM_PRE_PMU: | |
3174 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3175 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3176 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3177 | params, source); |
c74184ed MB |
3178 | if (ret != 0) { |
3179 | dev_err(source->dev, | |
3180 | "hw_params() failed: %d\n", ret); | |
9747cec2 | 3181 | goto out; |
c74184ed MB |
3182 | } |
3183 | } | |
3184 | ||
3185 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3186 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3187 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3188 | sink); |
3189 | if (ret != 0) { | |
3190 | dev_err(sink->dev, | |
3191 | "hw_params() failed: %d\n", ret); | |
9747cec2 | 3192 | goto out; |
c74184ed MB |
3193 | } |
3194 | } | |
3195 | break; | |
3196 | ||
3197 | case SND_SOC_DAPM_POST_PMU: | |
3198 | ret = snd_soc_dai_digital_mute(sink, 0); | |
3199 | if (ret != 0 && ret != -ENOTSUPP) | |
3200 | dev_warn(sink->dev, "Failed to unmute: %d\n", ret); | |
9747cec2 | 3201 | ret = 0; |
c74184ed MB |
3202 | break; |
3203 | ||
3204 | case SND_SOC_DAPM_PRE_PMD: | |
3205 | ret = snd_soc_dai_digital_mute(sink, 1); | |
3206 | if (ret != 0 && ret != -ENOTSUPP) | |
3207 | dev_warn(sink->dev, "Failed to mute: %d\n", ret); | |
9747cec2 | 3208 | ret = 0; |
c74184ed MB |
3209 | break; |
3210 | ||
3211 | default: | |
3212 | BUG(); | |
3213 | return -EINVAL; | |
3214 | } | |
3215 | ||
9747cec2 MB |
3216 | out: |
3217 | kfree(params); | |
3218 | return ret; | |
c74184ed MB |
3219 | } |
3220 | ||
3221 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3222 | const struct snd_soc_pcm_stream *params, | |
3223 | struct snd_soc_dapm_widget *source, | |
3224 | struct snd_soc_dapm_widget *sink) | |
3225 | { | |
3226 | struct snd_soc_dapm_route routes[2]; | |
3227 | struct snd_soc_dapm_widget template; | |
3228 | struct snd_soc_dapm_widget *w; | |
3229 | size_t len; | |
3230 | char *link_name; | |
3231 | ||
3232 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3233 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3234 | if (!link_name) | |
3235 | return -ENOMEM; | |
3236 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3237 | ||
3238 | memset(&template, 0, sizeof(template)); | |
3239 | template.reg = SND_SOC_NOPM; | |
3240 | template.id = snd_soc_dapm_dai_link; | |
3241 | template.name = link_name; | |
3242 | template.event = snd_soc_dai_link_event; | |
3243 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3244 | SND_SOC_DAPM_PRE_PMD; | |
3245 | ||
3246 | dev_dbg(card->dev, "adding %s widget\n", link_name); | |
3247 | ||
3248 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3249 | if (!w) { | |
3250 | dev_err(card->dev, "Failed to create %s widget\n", | |
3251 | link_name); | |
3252 | return -ENOMEM; | |
3253 | } | |
3254 | ||
3255 | w->params = params; | |
3256 | ||
3257 | memset(&routes, 0, sizeof(routes)); | |
3258 | ||
3259 | routes[0].source = source->name; | |
3260 | routes[0].sink = link_name; | |
3261 | routes[1].source = link_name; | |
3262 | routes[1].sink = sink->name; | |
3263 | ||
3264 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3265 | ARRAY_SIZE(routes)); | |
3266 | } | |
3267 | ||
888df395 MB |
3268 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3269 | struct snd_soc_dai *dai) | |
2b97eabc | 3270 | { |
888df395 | 3271 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3272 | struct snd_soc_dapm_widget *w; |
3273 | ||
888df395 MB |
3274 | WARN_ON(dapm->dev != dai->dev); |
3275 | ||
3276 | memset(&template, 0, sizeof(template)); | |
3277 | template.reg = SND_SOC_NOPM; | |
3278 | ||
3279 | if (dai->driver->playback.stream_name) { | |
3280 | template.id = snd_soc_dapm_dai; | |
3281 | template.name = dai->driver->playback.stream_name; | |
3282 | template.sname = dai->driver->playback.stream_name; | |
3283 | ||
3284 | dev_dbg(dai->dev, "adding %s widget\n", | |
3285 | template.name); | |
3286 | ||
3287 | w = snd_soc_dapm_new_control(dapm, &template); | |
3288 | if (!w) { | |
3289 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
3290 | dai->driver->playback.stream_name); | |
3291 | } | |
3292 | ||
3293 | w->priv = dai; | |
3294 | dai->playback_widget = w; | |
3295 | } | |
3296 | ||
3297 | if (dai->driver->capture.stream_name) { | |
3298 | template.id = snd_soc_dapm_dai; | |
3299 | template.name = dai->driver->capture.stream_name; | |
3300 | template.sname = dai->driver->capture.stream_name; | |
3301 | ||
3302 | dev_dbg(dai->dev, "adding %s widget\n", | |
3303 | template.name); | |
3304 | ||
3305 | w = snd_soc_dapm_new_control(dapm, &template); | |
3306 | if (!w) { | |
3307 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
3308 | dai->driver->capture.stream_name); | |
3309 | } | |
3310 | ||
3311 | w->priv = dai; | |
3312 | dai->capture_widget = w; | |
3313 | } | |
3314 | ||
3315 | return 0; | |
3316 | } | |
3317 | ||
3318 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3319 | { | |
3320 | struct snd_soc_dapm_widget *dai_w, *w; | |
3321 | struct snd_soc_dai *dai; | |
3322 | struct snd_soc_dapm_route r; | |
3323 | ||
3324 | memset(&r, 0, sizeof(r)); | |
3325 | ||
3326 | /* For each DAI widget... */ | |
3327 | list_for_each_entry(dai_w, &card->widgets, list) { | |
3328 | if (dai_w->id != snd_soc_dapm_dai) | |
2b97eabc | 3329 | continue; |
888df395 MB |
3330 | |
3331 | dai = dai_w->priv; | |
3332 | ||
3333 | /* ...find all widgets with the same stream and link them */ | |
3334 | list_for_each_entry(w, &card->widgets, list) { | |
3335 | if (w->dapm != dai_w->dapm) | |
3336 | continue; | |
3337 | ||
3338 | if (w->id == snd_soc_dapm_dai) | |
3339 | continue; | |
3340 | ||
3341 | if (!w->sname) | |
3342 | continue; | |
3343 | ||
3344 | if (dai->driver->playback.stream_name && | |
3345 | strstr(w->sname, | |
3346 | dai->driver->playback.stream_name)) { | |
3347 | r.source = dai->playback_widget->name; | |
3348 | r.sink = w->name; | |
3349 | dev_dbg(dai->dev, "%s -> %s\n", | |
3350 | r.source, r.sink); | |
3351 | ||
3352 | snd_soc_dapm_add_route(w->dapm, &r); | |
3353 | } | |
3354 | ||
3355 | if (dai->driver->capture.stream_name && | |
3356 | strstr(w->sname, | |
3357 | dai->driver->capture.stream_name)) { | |
3358 | r.source = w->name; | |
3359 | r.sink = dai->capture_widget->name; | |
3360 | dev_dbg(dai->dev, "%s -> %s\n", | |
3361 | r.source, r.sink); | |
3362 | ||
3363 | snd_soc_dapm_add_route(w->dapm, &r); | |
2b97eabc RP |
3364 | } |
3365 | } | |
3366 | } | |
2b97eabc | 3367 | |
888df395 MB |
3368 | return 0; |
3369 | } | |
64a648c2 | 3370 | |
d9b0951b LG |
3371 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3372 | int event) | |
2b97eabc | 3373 | { |
7bd3a6f3 | 3374 | |
d9b0951b LG |
3375 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3376 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3377 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3378 | |
d9b0951b LG |
3379 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3380 | w_cpu = cpu_dai->playback_widget; | |
3381 | w_codec = codec_dai->playback_widget; | |
3382 | } else { | |
3383 | w_cpu = cpu_dai->capture_widget; | |
3384 | w_codec = codec_dai->capture_widget; | |
3385 | } | |
2b97eabc | 3386 | |
d9b0951b | 3387 | if (w_cpu) { |
fe360685 | 3388 | |
d9b0951b LG |
3389 | dapm_mark_dirty(w_cpu, "stream event"); |
3390 | ||
3391 | switch (event) { | |
3392 | case SND_SOC_DAPM_STREAM_START: | |
3393 | w_cpu->active = 1; | |
3394 | break; | |
3395 | case SND_SOC_DAPM_STREAM_STOP: | |
3396 | w_cpu->active = 0; | |
3397 | break; | |
3398 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3399 | case SND_SOC_DAPM_STREAM_RESUME: | |
3400 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3401 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3402 | break; | |
3403 | } | |
3404 | } | |
3405 | ||
3406 | if (w_codec) { | |
3407 | ||
3408 | dapm_mark_dirty(w_codec, "stream event"); | |
3409 | ||
3410 | switch (event) { | |
3411 | case SND_SOC_DAPM_STREAM_START: | |
3412 | w_codec->active = 1; | |
3413 | break; | |
3414 | case SND_SOC_DAPM_STREAM_STOP: | |
3415 | w_codec->active = 0; | |
3416 | break; | |
3417 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3418 | case SND_SOC_DAPM_STREAM_RESUME: | |
3419 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3420 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3421 | break; | |
3422 | } | |
2b97eabc | 3423 | } |
2b97eabc | 3424 | |
d9b0951b | 3425 | dapm_power_widgets(&rtd->card->dapm, event); |
ce6120cc LG |
3426 | } |
3427 | ||
3428 | /** | |
3429 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3430 | * @rtd: PCM runtime data | |
3431 | * @stream: stream name | |
3432 | * @event: stream event | |
3433 | * | |
3434 | * Sends a stream event to the dapm core. The core then makes any | |
3435 | * necessary widget power changes. | |
3436 | * | |
3437 | * Returns 0 for success else error. | |
3438 | */ | |
d9b0951b LG |
3439 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3440 | int event) | |
ce6120cc | 3441 | { |
a73fb2df | 3442 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3443 | |
3cd04343 | 3444 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3445 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3446 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3447 | } |
2b97eabc RP |
3448 | |
3449 | /** | |
a5302181 | 3450 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3451 | * @dapm: DAPM context |
a5302181 | 3452 | * @pin: pin name |
2b97eabc | 3453 | * |
74b8f955 | 3454 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3455 | * a valid audio route and active audio stream. |
3456 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3457 | * do any widget power switching. | |
2b97eabc | 3458 | */ |
ce6120cc | 3459 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3460 | { |
ce6120cc | 3461 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3462 | } |
3463 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3464 | |
da34183e MB |
3465 | /** |
3466 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3467 | * @dapm: DAPM context |
da34183e MB |
3468 | * @pin: pin name |
3469 | * | |
3470 | * Enables input/output pin regardless of any other state. This is | |
3471 | * intended for use with microphone bias supplies used in microphone | |
3472 | * jack detection. | |
3473 | * | |
3474 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3475 | * do any widget power switching. | |
3476 | */ | |
ce6120cc LG |
3477 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3478 | const char *pin) | |
da34183e | 3479 | { |
91a5fca4 | 3480 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3481 | |
91a5fca4 LPC |
3482 | if (!w) { |
3483 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3484 | return -EINVAL; | |
0d86733c MB |
3485 | } |
3486 | ||
91a5fca4 LPC |
3487 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
3488 | w->connected = 1; | |
3489 | w->force = 1; | |
75c1f891 | 3490 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3491 | |
91a5fca4 | 3492 | return 0; |
da34183e MB |
3493 | } |
3494 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3495 | ||
a5302181 LG |
3496 | /** |
3497 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3498 | * @dapm: DAPM context |
a5302181 LG |
3499 | * @pin: pin name |
3500 | * | |
74b8f955 | 3501 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3502 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3503 | * do any widget power switching. | |
3504 | */ | |
ce6120cc LG |
3505 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3506 | const char *pin) | |
a5302181 | 3507 | { |
ce6120cc | 3508 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3509 | } |
a5302181 | 3510 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3511 | |
5817b52a MB |
3512 | /** |
3513 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3514 | * @dapm: DAPM context |
5817b52a MB |
3515 | * @pin: pin name |
3516 | * | |
3517 | * Marks the specified pin as being not connected, disabling it along | |
3518 | * any parent or child widgets. At present this is identical to | |
3519 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3520 | * additional things such as disabling controls which only affect | |
3521 | * paths through the pin. | |
3522 | * | |
3523 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3524 | * do any widget power switching. | |
3525 | */ | |
ce6120cc | 3526 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3527 | { |
ce6120cc | 3528 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3529 | } |
3530 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3531 | ||
eeec12bf | 3532 | /** |
a5302181 | 3533 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3534 | * @dapm: DAPM context |
a5302181 | 3535 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3536 | * |
a5302181 | 3537 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3538 | * |
a5302181 | 3539 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3540 | */ |
ce6120cc LG |
3541 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3542 | const char *pin) | |
eeec12bf | 3543 | { |
91a5fca4 | 3544 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3545 | |
91a5fca4 LPC |
3546 | if (w) |
3547 | return w->connected; | |
a68b38ad | 3548 | |
eeec12bf GG |
3549 | return 0; |
3550 | } | |
a5302181 | 3551 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3552 | |
1547aba9 MB |
3553 | /** |
3554 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3555 | * @dapm: DAPM context |
1547aba9 MB |
3556 | * @pin: audio signal pin endpoint (or start point) |
3557 | * | |
3558 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3559 | * system is disabled a path between two endpoints flagged as ignoring | |
3560 | * suspend will not be disabled. The path must already be enabled via | |
3561 | * normal means at suspend time, it will not be turned on if it was not | |
3562 | * already enabled. | |
3563 | */ | |
ce6120cc LG |
3564 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3565 | const char *pin) | |
1547aba9 | 3566 | { |
91a5fca4 | 3567 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3568 | |
91a5fca4 LPC |
3569 | if (!w) { |
3570 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3571 | return -EINVAL; | |
1547aba9 MB |
3572 | } |
3573 | ||
91a5fca4 LPC |
3574 | w->ignore_suspend = 1; |
3575 | ||
3576 | return 0; | |
1547aba9 MB |
3577 | } |
3578 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3579 | ||
1633281b SW |
3580 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3581 | struct snd_soc_dapm_widget *w) | |
3582 | { | |
3583 | struct snd_soc_dapm_path *p; | |
3584 | ||
3585 | list_for_each_entry(p, &card->paths, list) { | |
3586 | if ((p->source == w) || (p->sink == w)) { | |
3587 | dev_dbg(card->dev, | |
3588 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3589 | p->source->name, p->source->id, p->source->dapm, | |
3590 | p->sink->name, p->sink->id, p->sink->dapm); | |
3591 | ||
3592 | /* Connected to something other than the codec */ | |
3593 | if (p->source->dapm != p->sink->dapm) | |
3594 | return true; | |
3595 | /* | |
3596 | * Loopback connection from codec external pin to | |
3597 | * codec external pin | |
3598 | */ | |
3599 | if (p->sink->id == snd_soc_dapm_input) { | |
3600 | switch (p->source->id) { | |
3601 | case snd_soc_dapm_output: | |
3602 | case snd_soc_dapm_micbias: | |
3603 | return true; | |
3604 | default: | |
3605 | break; | |
3606 | } | |
3607 | } | |
3608 | } | |
3609 | } | |
3610 | ||
3611 | return false; | |
3612 | } | |
3613 | ||
3614 | /** | |
3615 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3616 | * @codec: The codec whose pins should be processed | |
3617 | * | |
3618 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3619 | * which are unused. Pins are used if they are connected externally to the | |
3620 | * codec, whether that be to some other device, or a loop-back connection to | |
3621 | * the codec itself. | |
3622 | */ | |
3623 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3624 | { | |
3625 | struct snd_soc_card *card = codec->card; | |
3626 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3627 | struct snd_soc_dapm_widget *w; | |
3628 | ||
a094b80b | 3629 | dev_dbg(codec->dev, "Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3630 | &card->dapm, &codec->dapm); |
3631 | ||
3632 | list_for_each_entry(w, &card->widgets, list) { | |
3633 | if (w->dapm != dapm) | |
3634 | continue; | |
3635 | switch (w->id) { | |
3636 | case snd_soc_dapm_input: | |
3637 | case snd_soc_dapm_output: | |
3638 | case snd_soc_dapm_micbias: | |
a094b80b | 3639 | dev_dbg(codec->dev, "Auto NC: Checking widget %s\n", |
1633281b SW |
3640 | w->name); |
3641 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3642 | dev_dbg(codec->dev, |
1633281b SW |
3643 | "... Not in map; disabling\n"); |
3644 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3645 | } | |
3646 | break; | |
3647 | default: | |
3648 | break; | |
3649 | } | |
3650 | } | |
3651 | } | |
3652 | ||
2b97eabc RP |
3653 | /** |
3654 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3655 | * @dapm: DAPM context |
2b97eabc RP |
3656 | * |
3657 | * Free all dapm widgets and resources. | |
3658 | */ | |
ce6120cc | 3659 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3660 | { |
ce6120cc | 3661 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3662 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3663 | dapm_free_widgets(dapm); |
7be31be8 | 3664 | list_del(&dapm->list); |
2b97eabc RP |
3665 | } |
3666 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3667 | ||
ce6120cc | 3668 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3669 | { |
01005a72 | 3670 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3671 | struct snd_soc_dapm_widget *w; |
3672 | LIST_HEAD(down_list); | |
3673 | int powerdown = 0; | |
3674 | ||
01005a72 LG |
3675 | mutex_lock(&card->dapm_mutex); |
3676 | ||
97c866de JN |
3677 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3678 | if (w->dapm != dapm) | |
3679 | continue; | |
51737470 | 3680 | if (w->power) { |
828a842f | 3681 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3682 | w->power = 0; |
51737470 MB |
3683 | powerdown = 1; |
3684 | } | |
3685 | } | |
3686 | ||
3687 | /* If there were no widgets to power down we're already in | |
3688 | * standby. | |
3689 | */ | |
3690 | if (powerdown) { | |
7679e42e MB |
3691 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3692 | snd_soc_dapm_set_bias_level(dapm, | |
3693 | SND_SOC_BIAS_PREPARE); | |
828a842f | 3694 | dapm_seq_run(dapm, &down_list, 0, false); |
7679e42e MB |
3695 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3696 | snd_soc_dapm_set_bias_level(dapm, | |
3697 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3698 | } |
01005a72 LG |
3699 | |
3700 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3701 | } |
3702 | ||
3703 | /* | |
3704 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3705 | */ | |
3706 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3707 | { | |
3708 | struct snd_soc_codec *codec; | |
3709 | ||
ce6120cc LG |
3710 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
3711 | soc_dapm_shutdown_codec(&codec->dapm); | |
7679e42e MB |
3712 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3713 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3714 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3715 | } |
51737470 MB |
3716 | } |
3717 | ||
2b97eabc | 3718 | /* Module information */ |
d331124d | 3719 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3720 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3721 | MODULE_LICENSE("GPL"); |