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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
d7e7eb91 | 38 | #include <linux/clk.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
2b97eabc RP |
40 | #include <sound/core.h> |
41 | #include <sound/pcm.h> | |
42 | #include <sound/pcm_params.h> | |
ce6120cc | 43 | #include <sound/soc.h> |
2b97eabc RP |
44 | #include <sound/initval.h> |
45 | ||
84e90930 MB |
46 | #include <trace/events/asoc.h> |
47 | ||
de02d078 MB |
48 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
49 | ||
2b97eabc RP |
50 | /* dapm power sequences - make this per codec in the future */ |
51 | static int dapm_up_seq[] = { | |
38357ab2 MB |
52 | [snd_soc_dapm_pre] = 0, |
53 | [snd_soc_dapm_supply] = 1, | |
62ea874a | 54 | [snd_soc_dapm_regulator_supply] = 1, |
d7e7eb91 | 55 | [snd_soc_dapm_clock_supply] = 1, |
38357ab2 | 56 | [snd_soc_dapm_micbias] = 2, |
c74184ed | 57 | [snd_soc_dapm_dai_link] = 2, |
888df395 | 58 | [snd_soc_dapm_dai] = 3, |
010ff262 MB |
59 | [snd_soc_dapm_aif_in] = 3, |
60 | [snd_soc_dapm_aif_out] = 3, | |
61 | [snd_soc_dapm_mic] = 4, | |
62 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 63 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
64 | [snd_soc_dapm_value_mux] = 5, |
65 | [snd_soc_dapm_dac] = 6, | |
66 | [snd_soc_dapm_mixer] = 7, | |
67 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
68 | [snd_soc_dapm_pga] = 8, | |
69 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 70 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
71 | [snd_soc_dapm_hp] = 10, |
72 | [snd_soc_dapm_spk] = 10, | |
7e1f7c8a | 73 | [snd_soc_dapm_line] = 10, |
010ff262 | 74 | [snd_soc_dapm_post] = 11, |
2b97eabc | 75 | }; |
ca9c1aae | 76 | |
2b97eabc | 77 | static int dapm_down_seq[] = { |
38357ab2 MB |
78 | [snd_soc_dapm_pre] = 0, |
79 | [snd_soc_dapm_adc] = 1, | |
80 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 81 | [snd_soc_dapm_spk] = 2, |
7e1f7c8a | 82 | [snd_soc_dapm_line] = 2, |
d88429a6 | 83 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
84 | [snd_soc_dapm_pga] = 4, |
85 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
86 | [snd_soc_dapm_mixer] = 5, |
87 | [snd_soc_dapm_dac] = 6, | |
88 | [snd_soc_dapm_mic] = 7, | |
89 | [snd_soc_dapm_micbias] = 8, | |
90 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 91 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 92 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
93 | [snd_soc_dapm_aif_in] = 10, |
94 | [snd_soc_dapm_aif_out] = 10, | |
888df395 | 95 | [snd_soc_dapm_dai] = 10, |
c74184ed | 96 | [snd_soc_dapm_dai_link] = 11, |
d7e7eb91 | 97 | [snd_soc_dapm_clock_supply] = 12, |
c74184ed MB |
98 | [snd_soc_dapm_regulator_supply] = 12, |
99 | [snd_soc_dapm_supply] = 12, | |
100 | [snd_soc_dapm_post] = 13, | |
2b97eabc RP |
101 | }; |
102 | ||
12ef193d | 103 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
104 | { |
105 | if (pop_time) | |
106 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
107 | } | |
108 | ||
fd8d3bc0 | 109 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
110 | { |
111 | va_list args; | |
fd8d3bc0 | 112 | char *buf; |
15e4c72f | 113 | |
fd8d3bc0 JN |
114 | if (!pop_time) |
115 | return; | |
15e4c72f | 116 | |
fd8d3bc0 JN |
117 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
118 | if (buf == NULL) | |
119 | return; | |
15e4c72f | 120 | |
fd8d3bc0 JN |
121 | va_start(args, fmt); |
122 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 123 | dev_info(dev, "%s", buf); |
15e4c72f | 124 | va_end(args); |
fd8d3bc0 JN |
125 | |
126 | kfree(buf); | |
15e4c72f MB |
127 | } |
128 | ||
db432b41 MB |
129 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
130 | { | |
131 | return !list_empty(&w->dirty); | |
132 | } | |
133 | ||
25c77c5f | 134 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 135 | { |
75c1f891 MB |
136 | if (!dapm_dirty_widget(w)) { |
137 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
138 | w->name, reason); | |
db432b41 | 139 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 140 | } |
db432b41 | 141 | } |
25c77c5f | 142 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 143 | |
e2d32ff6 MB |
144 | void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) |
145 | { | |
146 | struct snd_soc_card *card = dapm->card; | |
147 | struct snd_soc_dapm_widget *w; | |
148 | ||
149 | mutex_lock(&card->dapm_mutex); | |
150 | ||
151 | list_for_each_entry(w, &card->widgets, list) { | |
152 | switch (w->id) { | |
153 | case snd_soc_dapm_input: | |
154 | case snd_soc_dapm_output: | |
155 | dapm_mark_dirty(w, "Rechecking inputs and outputs"); | |
156 | break; | |
157 | default: | |
158 | break; | |
159 | } | |
160 | } | |
161 | ||
162 | mutex_unlock(&card->dapm_mutex); | |
163 | } | |
164 | EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); | |
165 | ||
2b97eabc | 166 | /* create a new dapm widget */ |
88cb4290 | 167 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
168 | const struct snd_soc_dapm_widget *_widget) |
169 | { | |
88cb4290 | 170 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
171 | } |
172 | ||
4805608a LG |
173 | /* get snd_card from DAPM context */ |
174 | static inline struct snd_card *dapm_get_snd_card( | |
175 | struct snd_soc_dapm_context *dapm) | |
176 | { | |
177 | if (dapm->codec) | |
178 | return dapm->codec->card->snd_card; | |
179 | else if (dapm->platform) | |
180 | return dapm->platform->card->snd_card; | |
181 | else | |
182 | BUG(); | |
183 | ||
184 | /* unreachable */ | |
185 | return NULL; | |
186 | } | |
187 | ||
188 | /* get soc_card from DAPM context */ | |
189 | static inline struct snd_soc_card *dapm_get_soc_card( | |
190 | struct snd_soc_dapm_context *dapm) | |
191 | { | |
192 | if (dapm->codec) | |
193 | return dapm->codec->card; | |
194 | else if (dapm->platform) | |
195 | return dapm->platform->card; | |
196 | else | |
197 | BUG(); | |
198 | ||
199 | /* unreachable */ | |
200 | return NULL; | |
201 | } | |
202 | ||
6c120e19 LG |
203 | static void dapm_reset(struct snd_soc_card *card) |
204 | { | |
205 | struct snd_soc_dapm_widget *w; | |
206 | ||
207 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
208 | ||
209 | list_for_each_entry(w, &card->widgets, list) { | |
210 | w->power_checked = false; | |
211 | w->inputs = -1; | |
212 | w->outputs = -1; | |
213 | } | |
214 | } | |
215 | ||
0445bdf4 LG |
216 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
217 | { | |
218 | if (w->codec) | |
219 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
220 | else if (w->platform) |
221 | return snd_soc_platform_read(w->platform, reg); | |
222 | ||
223 | dev_err(w->dapm->dev, "no valid widget read method\n"); | |
224 | return -1; | |
0445bdf4 LG |
225 | } |
226 | ||
227 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
228 | { | |
229 | if (w->codec) | |
230 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
231 | else if (w->platform) |
232 | return snd_soc_platform_write(w->platform, reg, val); | |
233 | ||
234 | dev_err(w->dapm->dev, "no valid widget write method\n"); | |
235 | return -1; | |
0445bdf4 LG |
236 | } |
237 | ||
49575fb5 LG |
238 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
239 | { | |
e06ab3b8 | 240 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
241 | mutex_lock(&w->codec->mutex); |
242 | else if (w->platform) | |
243 | mutex_lock(&w->platform->mutex); | |
244 | } | |
245 | ||
246 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
247 | { | |
e06ab3b8 | 248 | if (w->codec && !w->codec->using_regmap) |
49575fb5 LG |
249 | mutex_unlock(&w->codec->mutex); |
250 | else if (w->platform) | |
251 | mutex_unlock(&w->platform->mutex); | |
252 | } | |
253 | ||
254 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, | |
0445bdf4 LG |
255 | unsigned short reg, unsigned int mask, unsigned int value) |
256 | { | |
8a713da8 | 257 | bool change; |
0445bdf4 LG |
258 | unsigned int old, new; |
259 | int ret; | |
260 | ||
8a713da8 MB |
261 | if (w->codec && w->codec->using_regmap) { |
262 | ret = regmap_update_bits_check(w->codec->control_data, | |
263 | reg, mask, value, &change); | |
264 | if (ret != 0) | |
265 | return ret; | |
266 | } else { | |
49575fb5 | 267 | soc_widget_lock(w); |
8a713da8 | 268 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
269 | if (ret < 0) { |
270 | soc_widget_unlock(w); | |
0445bdf4 | 271 | return ret; |
49575fb5 | 272 | } |
8a713da8 MB |
273 | |
274 | old = ret; | |
275 | new = (old & ~mask) | (value & mask); | |
276 | change = old != new; | |
277 | if (change) { | |
278 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
279 | if (ret < 0) { |
280 | soc_widget_unlock(w); | |
8a713da8 | 281 | return ret; |
49575fb5 | 282 | } |
8a713da8 | 283 | } |
49575fb5 | 284 | soc_widget_unlock(w); |
0445bdf4 LG |
285 | } |
286 | ||
287 | return change; | |
288 | } | |
289 | ||
452c5eaa MB |
290 | /** |
291 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 292 | * @dapm: DAPM context |
452c5eaa MB |
293 | * @level: level to configure |
294 | * | |
295 | * Configure the bias (power) levels for the SoC audio device. | |
296 | * | |
297 | * Returns 0 for success else error. | |
298 | */ | |
ed5a4c47 | 299 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 300 | enum snd_soc_bias_level level) |
452c5eaa | 301 | { |
ed5a4c47 | 302 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
303 | int ret = 0; |
304 | ||
84e90930 MB |
305 | trace_snd_soc_bias_level_start(card, level); |
306 | ||
f0fba2ad | 307 | if (card && card->set_bias_level) |
d4c6005f | 308 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
309 | if (ret != 0) |
310 | goto out; | |
311 | ||
cc4c670a MB |
312 | if (dapm->codec) { |
313 | if (dapm->codec->driver->set_bias_level) | |
314 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
315 | level); | |
4123128e LG |
316 | } else |
317 | dapm->bias_level = level; | |
318 | ||
171ec6b0 MB |
319 | if (ret != 0) |
320 | goto out; | |
321 | ||
322 | if (card && card->set_bias_level_post) | |
d4c6005f | 323 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 324 | out: |
84e90930 MB |
325 | trace_snd_soc_bias_level_done(card, level); |
326 | ||
452c5eaa MB |
327 | return ret; |
328 | } | |
329 | ||
2b97eabc RP |
330 | /* set up initial codec paths */ |
331 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
332 | struct snd_soc_dapm_path *p, int i) | |
333 | { | |
334 | switch (w->id) { | |
335 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
336 | case snd_soc_dapm_mixer: |
337 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 338 | int val; |
4eaa9819 | 339 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 340 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
341 | unsigned int reg = mc->reg; |
342 | unsigned int shift = mc->shift; | |
4eaa9819 | 343 | int max = mc->max; |
815ecf8d JS |
344 | unsigned int mask = (1 << fls(max)) - 1; |
345 | unsigned int invert = mc->invert; | |
2b97eabc | 346 | |
0445bdf4 | 347 | val = soc_widget_read(w, reg); |
2b97eabc | 348 | val = (val >> shift) & mask; |
32fee7af BT |
349 | if (invert) |
350 | val = max - val; | |
2b97eabc | 351 | |
32fee7af | 352 | p->connect = !!val; |
2b97eabc RP |
353 | } |
354 | break; | |
355 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
356 | struct soc_enum *e = (struct soc_enum *) |
357 | w->kcontrol_news[i].private_value; | |
2b97eabc RP |
358 | int val, item, bitmask; |
359 | ||
f8ba0b7b | 360 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
88d96086 | 361 | ; |
0445bdf4 | 362 | val = soc_widget_read(w, e->reg); |
2b97eabc RP |
363 | item = (val >> e->shift_l) & (bitmask - 1); |
364 | ||
365 | p->connect = 0; | |
f8ba0b7b | 366 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
367 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
368 | p->connect = 1; | |
369 | } | |
370 | } | |
371 | break; | |
24ff33ac | 372 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
373 | struct soc_enum *e = (struct soc_enum *) |
374 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
375 | |
376 | p->connect = 0; | |
377 | /* since a virtual mux has no backing registers to | |
378 | * decide which path to connect, it will try to match | |
379 | * with the first enumeration. This is to ensure | |
380 | * that the default mux choice (the first) will be | |
381 | * correctly powered up during initialization. | |
382 | */ | |
383 | if (!strcmp(p->name, e->texts[0])) | |
384 | p->connect = 1; | |
385 | } | |
386 | break; | |
2e72f8e3 | 387 | case snd_soc_dapm_value_mux: { |
74155556 | 388 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 389 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
390 | int val, item; |
391 | ||
0445bdf4 | 392 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
393 | val = (val >> e->shift_l) & e->mask; |
394 | for (item = 0; item < e->max; item++) { | |
395 | if (val == e->values[item]) | |
396 | break; | |
397 | } | |
398 | ||
399 | p->connect = 0; | |
400 | for (i = 0; i < e->max; i++) { | |
401 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
402 | p->connect = 1; | |
403 | } | |
404 | } | |
405 | break; | |
56563100 | 406 | /* does not affect routing - always connected */ |
2b97eabc | 407 | case snd_soc_dapm_pga: |
d88429a6 | 408 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
409 | case snd_soc_dapm_output: |
410 | case snd_soc_dapm_adc: | |
411 | case snd_soc_dapm_input: | |
1ab97c8c | 412 | case snd_soc_dapm_siggen: |
2b97eabc RP |
413 | case snd_soc_dapm_dac: |
414 | case snd_soc_dapm_micbias: | |
415 | case snd_soc_dapm_vmid: | |
246d0a17 | 416 | case snd_soc_dapm_supply: |
62ea874a | 417 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 418 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
419 | case snd_soc_dapm_aif_in: |
420 | case snd_soc_dapm_aif_out: | |
888df395 | 421 | case snd_soc_dapm_dai: |
2b97eabc RP |
422 | case snd_soc_dapm_hp: |
423 | case snd_soc_dapm_mic: | |
424 | case snd_soc_dapm_spk: | |
425 | case snd_soc_dapm_line: | |
c74184ed | 426 | case snd_soc_dapm_dai_link: |
56563100 MB |
427 | p->connect = 1; |
428 | break; | |
429 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
430 | case snd_soc_dapm_pre: |
431 | case snd_soc_dapm_post: | |
432 | p->connect = 0; | |
433 | break; | |
434 | } | |
435 | } | |
436 | ||
74b8f955 | 437 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 438 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
439 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
440 | struct snd_soc_dapm_path *path, const char *control_name, | |
441 | const struct snd_kcontrol_new *kcontrol) | |
442 | { | |
443 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
444 | int i; | |
445 | ||
f8ba0b7b | 446 | for (i = 0; i < e->max; i++) { |
2b97eabc | 447 | if (!(strcmp(control_name, e->texts[i]))) { |
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); | |
451 | path->name = (char*)e->texts[i]; | |
452 | dapm_set_path_status(dest, path, 0); | |
453 | return 0; | |
454 | } | |
455 | } | |
456 | ||
457 | return -ENODEV; | |
458 | } | |
459 | ||
74b8f955 | 460 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 461 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
462 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
463 | struct snd_soc_dapm_path *path, const char *control_name) | |
464 | { | |
465 | int i; | |
466 | ||
467 | /* search for mixer kcontrol */ | |
468 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 469 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 470 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
471 | list_add(&path->list_sink, &dest->sources); |
472 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 473 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
474 | dapm_set_path_status(dest, path, i); |
475 | return 0; | |
476 | } | |
477 | } | |
478 | return -ENODEV; | |
479 | } | |
480 | ||
af46800b | 481 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 482 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
483 | const struct snd_kcontrol_new *kcontrol_new, |
484 | struct snd_kcontrol **kcontrol) | |
485 | { | |
486 | struct snd_soc_dapm_widget *w; | |
487 | int i; | |
488 | ||
489 | *kcontrol = NULL; | |
490 | ||
491 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
492 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
493 | continue; | |
af46800b SW |
494 | for (i = 0; i < w->num_kcontrols; i++) { |
495 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
496 | if (w->kcontrols) | |
497 | *kcontrol = w->kcontrols[i]; | |
498 | return 1; | |
499 | } | |
500 | } | |
501 | } | |
502 | ||
503 | return 0; | |
504 | } | |
505 | ||
2b97eabc | 506 | /* create new dapm mixer control */ |
4b80b8c2 | 507 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
2b97eabc | 508 | { |
4b80b8c2 | 509 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc | 510 | int i, ret = 0; |
3e5ff4df | 511 | size_t name_len, prefix_len; |
2b97eabc | 512 | struct snd_soc_dapm_path *path; |
12ea2c78 | 513 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 514 | const char *prefix; |
fafd2176 SW |
515 | struct snd_soc_dapm_widget_list *wlist; |
516 | size_t wlistsize; | |
efb7ac3f MB |
517 | |
518 | if (dapm->codec) | |
519 | prefix = dapm->codec->name_prefix; | |
520 | else | |
521 | prefix = NULL; | |
2b97eabc | 522 | |
3e5ff4df MB |
523 | if (prefix) |
524 | prefix_len = strlen(prefix) + 1; | |
525 | else | |
526 | prefix_len = 0; | |
527 | ||
2b97eabc RP |
528 | /* add kcontrol */ |
529 | for (i = 0; i < w->num_kcontrols; i++) { | |
530 | ||
531 | /* match name */ | |
532 | list_for_each_entry(path, &w->sources, list_sink) { | |
533 | ||
534 | /* mixer/mux paths name must match control name */ | |
82cfecdc | 535 | if (path->name != (char *)w->kcontrol_news[i].name) |
2b97eabc RP |
536 | continue; |
537 | ||
82cd8764 LPC |
538 | if (w->kcontrols[i]) { |
539 | path->kcontrol = w->kcontrols[i]; | |
540 | continue; | |
541 | } | |
542 | ||
fafd2176 SW |
543 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
544 | sizeof(struct snd_soc_dapm_widget *), | |
545 | wlist = kzalloc(wlistsize, GFP_KERNEL); | |
546 | if (wlist == NULL) { | |
547 | dev_err(dapm->dev, | |
548 | "asoc: can't allocate widget list for %s\n", | |
549 | w->name); | |
550 | return -ENOMEM; | |
551 | } | |
552 | wlist->num_widgets = 1; | |
553 | wlist->widgets[0] = w; | |
554 | ||
ca9c1aae IM |
555 | /* add dapm control with long name. |
556 | * for dapm_mixer this is the concatenation of the | |
557 | * mixer and kcontrol name. | |
558 | * for dapm_mixer_named_ctl this is simply the | |
559 | * kcontrol name. | |
560 | */ | |
82cfecdc | 561 | name_len = strlen(w->kcontrol_news[i].name) + 1; |
07495f3e | 562 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
563 | name_len += 1 + strlen(w->name); |
564 | ||
219b93f5 | 565 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 566 | |
fafd2176 SW |
567 | if (path->long_name == NULL) { |
568 | kfree(wlist); | |
2b97eabc | 569 | return -ENOMEM; |
fafd2176 | 570 | } |
2b97eabc | 571 | |
ca9c1aae | 572 | switch (w->id) { |
ca9c1aae | 573 | default: |
3e5ff4df MB |
574 | /* The control will get a prefix from |
575 | * the control creation process but | |
576 | * we're also using the same prefix | |
577 | * for widgets so cut the prefix off | |
578 | * the front of the widget name. | |
579 | */ | |
888df395 MB |
580 | snprintf((char *)path->long_name, name_len, |
581 | "%s %s", w->name + prefix_len, | |
82cfecdc | 582 | w->kcontrol_news[i].name); |
07495f3e | 583 | break; |
ca9c1aae | 584 | case snd_soc_dapm_mixer_named_ctl: |
888df395 MB |
585 | snprintf((char *)path->long_name, name_len, |
586 | "%s", w->kcontrol_news[i].name); | |
07495f3e | 587 | break; |
ca9c1aae IM |
588 | } |
589 | ||
888df395 | 590 | ((char *)path->long_name)[name_len - 1] = '\0'; |
219b93f5 | 591 | |
fafd2176 SW |
592 | path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], |
593 | wlist, path->long_name, | |
594 | prefix); | |
ce6120cc | 595 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 596 | if (ret < 0) { |
f7d41ae8 JN |
597 | dev_err(dapm->dev, |
598 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
599 | path->long_name, ret); | |
fafd2176 | 600 | kfree(wlist); |
2b97eabc RP |
601 | kfree(path->long_name); |
602 | path->long_name = NULL; | |
603 | return ret; | |
604 | } | |
fad59888 | 605 | w->kcontrols[i] = path->kcontrol; |
2b97eabc RP |
606 | } |
607 | } | |
608 | return ret; | |
609 | } | |
610 | ||
611 | /* create new dapm mux control */ | |
4b80b8c2 | 612 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 613 | { |
4b80b8c2 | 614 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc RP |
615 | struct snd_soc_dapm_path *path = NULL; |
616 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 617 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 618 | const char *prefix; |
3e5ff4df | 619 | size_t prefix_len; |
af46800b | 620 | int ret; |
fafd2176 | 621 | struct snd_soc_dapm_widget_list *wlist; |
af46800b | 622 | int shared, wlistentries; |
fafd2176 | 623 | size_t wlistsize; |
888df395 | 624 | const char *name; |
2b97eabc | 625 | |
af46800b SW |
626 | if (w->num_kcontrols != 1) { |
627 | dev_err(dapm->dev, | |
628 | "asoc: mux %s has incorrect number of controls\n", | |
629 | w->name); | |
2b97eabc RP |
630 | return -EINVAL; |
631 | } | |
632 | ||
1007da06 | 633 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b SW |
634 | &kcontrol); |
635 | if (kcontrol) { | |
636 | wlist = kcontrol->private_data; | |
637 | wlistentries = wlist->num_widgets + 1; | |
638 | } else { | |
639 | wlist = NULL; | |
640 | wlistentries = 1; | |
641 | } | |
fafd2176 | 642 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b SW |
643 | wlistentries * sizeof(struct snd_soc_dapm_widget *), |
644 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
fafd2176 SW |
645 | if (wlist == NULL) { |
646 | dev_err(dapm->dev, | |
647 | "asoc: can't allocate widget list for %s\n", w->name); | |
648 | return -ENOMEM; | |
649 | } | |
af46800b SW |
650 | wlist->num_widgets = wlistentries; |
651 | wlist->widgets[wlistentries - 1] = w; | |
efb7ac3f | 652 | |
af46800b SW |
653 | if (!kcontrol) { |
654 | if (dapm->codec) | |
655 | prefix = dapm->codec->name_prefix; | |
656 | else | |
657 | prefix = NULL; | |
658 | ||
659 | if (shared) { | |
660 | name = w->kcontrol_news[0].name; | |
661 | prefix_len = 0; | |
662 | } else { | |
663 | name = w->name; | |
664 | if (prefix) | |
665 | prefix_len = strlen(prefix) + 1; | |
666 | else | |
667 | prefix_len = 0; | |
668 | } | |
3e5ff4df | 669 | |
af46800b SW |
670 | /* |
671 | * The control will get a prefix from the control creation | |
672 | * process but we're also using the same prefix for widgets so | |
673 | * cut the prefix off the front of the widget name. | |
674 | */ | |
675 | kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, | |
676 | name + prefix_len, prefix); | |
677 | ret = snd_ctl_add(card, kcontrol); | |
678 | if (ret < 0) { | |
53daf208 MB |
679 | dev_err(dapm->dev, "failed to add kcontrol %s: %d\n", |
680 | w->name, ret); | |
af46800b SW |
681 | kfree(wlist); |
682 | return ret; | |
683 | } | |
684 | } | |
ce6120cc | 685 | |
af46800b | 686 | kcontrol->private_data = wlist; |
2b97eabc | 687 | |
fad59888 SW |
688 | w->kcontrols[0] = kcontrol; |
689 | ||
2b97eabc RP |
690 | list_for_each_entry(path, &w->sources, list_sink) |
691 | path->kcontrol = kcontrol; | |
692 | ||
af46800b | 693 | return 0; |
2b97eabc RP |
694 | } |
695 | ||
696 | /* create new dapm volume control */ | |
4b80b8c2 | 697 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 698 | { |
a6c65736 | 699 | if (w->num_kcontrols) |
f7d41ae8 JN |
700 | dev_err(w->dapm->dev, |
701 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 702 | |
a6c65736 | 703 | return 0; |
2b97eabc RP |
704 | } |
705 | ||
706 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 707 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
708 | { |
709 | struct snd_soc_dapm_path *p; | |
710 | ||
8ddab3f5 | 711 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
712 | p->walked = 0; |
713 | } | |
714 | ||
9949788b MB |
715 | /* We implement power down on suspend by checking the power state of |
716 | * the ALSA card - when we are suspending the ALSA state for the card | |
717 | * is set to D3. | |
718 | */ | |
719 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
720 | { | |
12ea2c78 | 721 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 722 | |
f0fba2ad | 723 | switch (level) { |
9949788b MB |
724 | case SNDRV_CTL_POWER_D3hot: |
725 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 726 | if (widget->ignore_suspend) |
f7d41ae8 JN |
727 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
728 | widget->name); | |
1547aba9 | 729 | return widget->ignore_suspend; |
9949788b MB |
730 | default: |
731 | return 1; | |
732 | } | |
733 | } | |
734 | ||
ec2e3031 LG |
735 | /* add widget to list if it's not already in the list */ |
736 | static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, | |
737 | struct snd_soc_dapm_widget *w) | |
738 | { | |
739 | struct snd_soc_dapm_widget_list *wlist; | |
740 | int wlistsize, wlistentries, i; | |
741 | ||
742 | if (*list == NULL) | |
743 | return -EINVAL; | |
744 | ||
745 | wlist = *list; | |
746 | ||
747 | /* is this widget already in the list */ | |
748 | for (i = 0; i < wlist->num_widgets; i++) { | |
749 | if (wlist->widgets[i] == w) | |
750 | return 0; | |
751 | } | |
752 | ||
753 | /* allocate some new space */ | |
754 | wlistentries = wlist->num_widgets + 1; | |
755 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + | |
756 | wlistentries * sizeof(struct snd_soc_dapm_widget *); | |
757 | *list = krealloc(wlist, wlistsize, GFP_KERNEL); | |
758 | if (*list == NULL) { | |
759 | dev_err(w->dapm->dev, "can't allocate widget list for %s\n", | |
760 | w->name); | |
761 | return -ENOMEM; | |
762 | } | |
763 | wlist = *list; | |
764 | ||
765 | /* insert the widget */ | |
766 | dev_dbg(w->dapm->dev, "added %s in widget list pos %d\n", | |
767 | w->name, wlist->num_widgets); | |
768 | ||
769 | wlist->widgets[wlist->num_widgets] = w; | |
770 | wlist->num_widgets++; | |
771 | return 1; | |
772 | } | |
773 | ||
2b97eabc RP |
774 | /* |
775 | * Recursively check for a completed path to an active or physically connected | |
776 | * output widget. Returns number of complete paths. | |
777 | */ | |
ec2e3031 LG |
778 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, |
779 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
780 | { |
781 | struct snd_soc_dapm_path *path; | |
782 | int con = 0; | |
783 | ||
024dc078 MB |
784 | if (widget->outputs >= 0) |
785 | return widget->outputs; | |
786 | ||
de02d078 MB |
787 | DAPM_UPDATE_STAT(widget, path_checks); |
788 | ||
62ea874a MB |
789 | switch (widget->id) { |
790 | case snd_soc_dapm_supply: | |
791 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 792 | case snd_soc_dapm_clock_supply: |
246d0a17 | 793 | return 0; |
62ea874a MB |
794 | default: |
795 | break; | |
796 | } | |
246d0a17 | 797 | |
010ff262 MB |
798 | switch (widget->id) { |
799 | case snd_soc_dapm_adc: | |
800 | case snd_soc_dapm_aif_out: | |
888df395 | 801 | case snd_soc_dapm_dai: |
024dc078 MB |
802 | if (widget->active) { |
803 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
804 | return widget->outputs; | |
805 | } | |
010ff262 MB |
806 | default: |
807 | break; | |
808 | } | |
2b97eabc RP |
809 | |
810 | if (widget->connected) { | |
811 | /* connected pin ? */ | |
024dc078 MB |
812 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
813 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
814 | return widget->outputs; | |
815 | } | |
2b97eabc RP |
816 | |
817 | /* connected jack or spk ? */ | |
024dc078 MB |
818 | if (widget->id == snd_soc_dapm_hp || |
819 | widget->id == snd_soc_dapm_spk || | |
820 | (widget->id == snd_soc_dapm_line && | |
821 | !list_empty(&widget->sources))) { | |
822 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
823 | return widget->outputs; | |
824 | } | |
2b97eabc RP |
825 | } |
826 | ||
827 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
828 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
829 | ||
bf3a9e13 MB |
830 | if (path->weak) |
831 | continue; | |
832 | ||
2b97eabc RP |
833 | if (path->walked) |
834 | continue; | |
835 | ||
ec2e3031 LG |
836 | trace_snd_soc_dapm_output_path(widget, path); |
837 | ||
2b97eabc RP |
838 | if (path->sink && path->connect) { |
839 | path->walked = 1; | |
ec2e3031 LG |
840 | |
841 | /* do we need to add this widget to the list ? */ | |
842 | if (list) { | |
843 | int err; | |
844 | err = dapm_list_add_widget(list, path->sink); | |
845 | if (err < 0) { | |
846 | dev_err(widget->dapm->dev, "could not add widget %s\n", | |
847 | widget->name); | |
848 | return con; | |
849 | } | |
850 | } | |
851 | ||
852 | con += is_connected_output_ep(path->sink, list); | |
2b97eabc RP |
853 | } |
854 | } | |
855 | ||
024dc078 MB |
856 | widget->outputs = con; |
857 | ||
2b97eabc RP |
858 | return con; |
859 | } | |
860 | ||
861 | /* | |
862 | * Recursively check for a completed path to an active or physically connected | |
863 | * input widget. Returns number of complete paths. | |
864 | */ | |
ec2e3031 LG |
865 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, |
866 | struct snd_soc_dapm_widget_list **list) | |
2b97eabc RP |
867 | { |
868 | struct snd_soc_dapm_path *path; | |
869 | int con = 0; | |
870 | ||
024dc078 MB |
871 | if (widget->inputs >= 0) |
872 | return widget->inputs; | |
873 | ||
de02d078 MB |
874 | DAPM_UPDATE_STAT(widget, path_checks); |
875 | ||
62ea874a MB |
876 | switch (widget->id) { |
877 | case snd_soc_dapm_supply: | |
878 | case snd_soc_dapm_regulator_supply: | |
d7e7eb91 | 879 | case snd_soc_dapm_clock_supply: |
246d0a17 | 880 | return 0; |
62ea874a MB |
881 | default: |
882 | break; | |
883 | } | |
246d0a17 | 884 | |
2b97eabc | 885 | /* active stream ? */ |
010ff262 MB |
886 | switch (widget->id) { |
887 | case snd_soc_dapm_dac: | |
888 | case snd_soc_dapm_aif_in: | |
888df395 | 889 | case snd_soc_dapm_dai: |
024dc078 MB |
890 | if (widget->active) { |
891 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
892 | return widget->inputs; | |
893 | } | |
010ff262 MB |
894 | default: |
895 | break; | |
896 | } | |
2b97eabc RP |
897 | |
898 | if (widget->connected) { | |
899 | /* connected pin ? */ | |
024dc078 MB |
900 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
901 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
902 | return widget->inputs; | |
903 | } | |
2b97eabc RP |
904 | |
905 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
906 | if (widget->id == snd_soc_dapm_vmid) { |
907 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
908 | return widget->inputs; | |
909 | } | |
2b97eabc RP |
910 | |
911 | /* connected jack ? */ | |
eaeae5d9 | 912 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
913 | (widget->id == snd_soc_dapm_line && |
914 | !list_empty(&widget->sinks))) { | |
915 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
916 | return widget->inputs; | |
917 | } | |
918 | ||
1ab97c8c MB |
919 | /* signal generator */ |
920 | if (widget->id == snd_soc_dapm_siggen) { | |
921 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
922 | return widget->inputs; | |
923 | } | |
2b97eabc RP |
924 | } |
925 | ||
926 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
927 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
928 | ||
bf3a9e13 MB |
929 | if (path->weak) |
930 | continue; | |
931 | ||
2b97eabc RP |
932 | if (path->walked) |
933 | continue; | |
934 | ||
ec2e3031 LG |
935 | trace_snd_soc_dapm_input_path(widget, path); |
936 | ||
2b97eabc RP |
937 | if (path->source && path->connect) { |
938 | path->walked = 1; | |
ec2e3031 LG |
939 | |
940 | /* do we need to add this widget to the list ? */ | |
941 | if (list) { | |
942 | int err; | |
90c6ce0d | 943 | err = dapm_list_add_widget(list, path->source); |
ec2e3031 LG |
944 | if (err < 0) { |
945 | dev_err(widget->dapm->dev, "could not add widget %s\n", | |
946 | widget->name); | |
947 | return con; | |
948 | } | |
949 | } | |
950 | ||
951 | con += is_connected_input_ep(path->source, list); | |
2b97eabc RP |
952 | } |
953 | } | |
954 | ||
024dc078 MB |
955 | widget->inputs = con; |
956 | ||
2b97eabc RP |
957 | return con; |
958 | } | |
959 | ||
ec2e3031 LG |
960 | /** |
961 | * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. | |
962 | * @dai: the soc DAI. | |
963 | * @stream: stream direction. | |
964 | * @list: list of active widgets for this stream. | |
965 | * | |
966 | * Queries DAPM graph as to whether an valid audio stream path exists for | |
967 | * the initial stream specified by name. This takes into account | |
968 | * current mixer and mux kcontrol settings. Creates list of valid widgets. | |
969 | * | |
970 | * Returns the number of valid paths or negative error. | |
971 | */ | |
972 | int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, | |
973 | struct snd_soc_dapm_widget_list **list) | |
974 | { | |
975 | struct snd_soc_card *card = dai->card; | |
976 | int paths; | |
977 | ||
978 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); | |
979 | dapm_reset(card); | |
980 | ||
981 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
982 | paths = is_connected_output_ep(dai->playback_widget, list); | |
983 | else | |
d298caae | 984 | paths = is_connected_input_ep(dai->capture_widget, list); |
ec2e3031 LG |
985 | |
986 | trace_snd_soc_dapm_connected(paths, stream); | |
987 | dapm_clear_walk(&card->dapm); | |
988 | mutex_unlock(&card->dapm_mutex); | |
989 | ||
990 | return paths; | |
991 | } | |
992 | ||
e2be2ccf JN |
993 | /* |
994 | * Handler for generic register modifier widget. | |
995 | */ | |
996 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
997 | struct snd_kcontrol *kcontrol, int event) | |
998 | { | |
999 | unsigned int val; | |
1000 | ||
1001 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
1002 | val = w->on_val; | |
1003 | else | |
1004 | val = w->off_val; | |
1005 | ||
49575fb5 | 1006 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
1007 | w->mask << w->shift, val << w->shift); |
1008 | ||
1009 | return 0; | |
1010 | } | |
11589418 | 1011 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 1012 | |
62ea874a MB |
1013 | /* |
1014 | * Handler for regulator supply widget. | |
1015 | */ | |
1016 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
1017 | struct snd_kcontrol *kcontrol, int event) | |
1018 | { | |
1019 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
a3cc056b | 1020 | return regulator_enable(w->regulator); |
62ea874a | 1021 | else |
a3cc056b | 1022 | return regulator_disable_deferred(w->regulator, w->shift); |
62ea874a MB |
1023 | } |
1024 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
1025 | ||
d7e7eb91 OL |
1026 | /* |
1027 | * Handler for clock supply widget. | |
1028 | */ | |
1029 | int dapm_clock_event(struct snd_soc_dapm_widget *w, | |
1030 | struct snd_kcontrol *kcontrol, int event) | |
1031 | { | |
1032 | if (!w->clk) | |
1033 | return -EIO; | |
1034 | ||
ec02995a | 1035 | #ifdef CONFIG_HAVE_CLK |
d7e7eb91 OL |
1036 | if (SND_SOC_DAPM_EVENT_ON(event)) { |
1037 | return clk_enable(w->clk); | |
1038 | } else { | |
1039 | clk_disable(w->clk); | |
1040 | return 0; | |
1041 | } | |
ec02995a | 1042 | #endif |
98b3cf12 | 1043 | return 0; |
d7e7eb91 OL |
1044 | } |
1045 | EXPORT_SYMBOL_GPL(dapm_clock_event); | |
1046 | ||
d805002b MB |
1047 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
1048 | { | |
9b8a83b2 MB |
1049 | if (w->power_checked) |
1050 | return w->new_power; | |
1051 | ||
d805002b | 1052 | if (w->force) |
9b8a83b2 | 1053 | w->new_power = 1; |
d805002b | 1054 | else |
9b8a83b2 MB |
1055 | w->new_power = w->power_check(w); |
1056 | ||
1057 | w->power_checked = true; | |
1058 | ||
1059 | return w->new_power; | |
d805002b MB |
1060 | } |
1061 | ||
cd0f2d47 MB |
1062 | /* Generic check to see if a widget should be powered. |
1063 | */ | |
1064 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
1065 | { | |
1066 | int in, out; | |
1067 | ||
de02d078 MB |
1068 | DAPM_UPDATE_STAT(w, power_checks); |
1069 | ||
ec2e3031 | 1070 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1071 | dapm_clear_walk(w->dapm); |
ec2e3031 | 1072 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1073 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
1074 | return out != 0 && in != 0; |
1075 | } | |
1076 | ||
888df395 MB |
1077 | static int dapm_dai_check_power(struct snd_soc_dapm_widget *w) |
1078 | { | |
1079 | DAPM_UPDATE_STAT(w, power_checks); | |
1080 | ||
1eee1b38 MB |
1081 | if (w->active) |
1082 | return w->active; | |
1083 | ||
1084 | return dapm_generic_check_power(w); | |
888df395 MB |
1085 | } |
1086 | ||
6ea31b9f MB |
1087 | /* Check to see if an ADC has power */ |
1088 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
1089 | { | |
1090 | int in; | |
1091 | ||
de02d078 MB |
1092 | DAPM_UPDATE_STAT(w, power_checks); |
1093 | ||
6ea31b9f | 1094 | if (w->active) { |
ec2e3031 | 1095 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1096 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
1097 | return in != 0; |
1098 | } else { | |
1099 | return dapm_generic_check_power(w); | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | /* Check to see if a DAC has power */ | |
1104 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
1105 | { | |
1106 | int out; | |
1107 | ||
de02d078 MB |
1108 | DAPM_UPDATE_STAT(w, power_checks); |
1109 | ||
6ea31b9f | 1110 | if (w->active) { |
ec2e3031 | 1111 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1112 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
1113 | return out != 0; |
1114 | } else { | |
1115 | return dapm_generic_check_power(w); | |
1116 | } | |
1117 | } | |
1118 | ||
246d0a17 MB |
1119 | /* Check to see if a power supply is needed */ |
1120 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
1121 | { | |
1122 | struct snd_soc_dapm_path *path; | |
246d0a17 | 1123 | |
de02d078 MB |
1124 | DAPM_UPDATE_STAT(w, power_checks); |
1125 | ||
246d0a17 MB |
1126 | /* Check if one of our outputs is connected */ |
1127 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
1128 | DAPM_UPDATE_STAT(w, neighbour_checks); |
1129 | ||
bf3a9e13 MB |
1130 | if (path->weak) |
1131 | continue; | |
1132 | ||
215edda3 MB |
1133 | if (path->connected && |
1134 | !path->connected(path->source, path->sink)) | |
1135 | continue; | |
1136 | ||
3017358a MB |
1137 | if (!path->sink) |
1138 | continue; | |
1139 | ||
f68d7e16 MB |
1140 | if (dapm_widget_power_check(path->sink)) |
1141 | return 1; | |
246d0a17 MB |
1142 | } |
1143 | ||
ce6120cc | 1144 | dapm_clear_walk(w->dapm); |
246d0a17 | 1145 | |
f68d7e16 | 1146 | return 0; |
246d0a17 MB |
1147 | } |
1148 | ||
35c64bca MB |
1149 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
1150 | { | |
1151 | return 1; | |
1152 | } | |
1153 | ||
38357ab2 MB |
1154 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
1155 | struct snd_soc_dapm_widget *b, | |
828a842f | 1156 | bool power_up) |
42aa3418 | 1157 | { |
828a842f MB |
1158 | int *sort; |
1159 | ||
1160 | if (power_up) | |
1161 | sort = dapm_up_seq; | |
1162 | else | |
1163 | sort = dapm_down_seq; | |
1164 | ||
38357ab2 MB |
1165 | if (sort[a->id] != sort[b->id]) |
1166 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1167 | if (a->subseq != b->subseq) { |
1168 | if (power_up) | |
1169 | return a->subseq - b->subseq; | |
1170 | else | |
1171 | return b->subseq - a->subseq; | |
1172 | } | |
b22ead2a MB |
1173 | if (a->reg != b->reg) |
1174 | return a->reg - b->reg; | |
84dab567 MB |
1175 | if (a->dapm != b->dapm) |
1176 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1177 | |
38357ab2 MB |
1178 | return 0; |
1179 | } | |
42aa3418 | 1180 | |
38357ab2 MB |
1181 | /* Insert a widget in order into a DAPM power sequence. */ |
1182 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1183 | struct list_head *list, | |
828a842f | 1184 | bool power_up) |
38357ab2 MB |
1185 | { |
1186 | struct snd_soc_dapm_widget *w; | |
1187 | ||
1188 | list_for_each_entry(w, list, power_list) | |
828a842f | 1189 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1190 | list_add_tail(&new_widget->power_list, &w->power_list); |
1191 | return; | |
1192 | } | |
1193 | ||
1194 | list_add_tail(&new_widget->power_list, list); | |
1195 | } | |
1196 | ||
68f89ad8 MB |
1197 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
1198 | struct snd_soc_dapm_widget *w, int event) | |
1199 | { | |
1200 | struct snd_soc_card *card = dapm->card; | |
1201 | const char *ev_name; | |
1202 | int power, ret; | |
1203 | ||
1204 | switch (event) { | |
1205 | case SND_SOC_DAPM_PRE_PMU: | |
1206 | ev_name = "PRE_PMU"; | |
1207 | power = 1; | |
1208 | break; | |
1209 | case SND_SOC_DAPM_POST_PMU: | |
1210 | ev_name = "POST_PMU"; | |
1211 | power = 1; | |
1212 | break; | |
1213 | case SND_SOC_DAPM_PRE_PMD: | |
1214 | ev_name = "PRE_PMD"; | |
1215 | power = 0; | |
1216 | break; | |
1217 | case SND_SOC_DAPM_POST_PMD: | |
1218 | ev_name = "POST_PMD"; | |
1219 | power = 0; | |
1220 | break; | |
1221 | default: | |
1222 | BUG(); | |
1223 | return; | |
1224 | } | |
1225 | ||
1226 | if (w->power != power) | |
1227 | return; | |
1228 | ||
1229 | if (w->event && (w->event_flags & event)) { | |
1230 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1231 | w->name, ev_name); | |
84e90930 | 1232 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1233 | ret = w->event(w, NULL, event); |
84e90930 | 1234 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
1235 | if (ret < 0) |
1236 | pr_err("%s: %s event failed: %d\n", | |
1237 | ev_name, w->name, ret); | |
1238 | } | |
1239 | } | |
1240 | ||
b22ead2a | 1241 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1242 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1243 | struct list_head *pending) |
163cac06 | 1244 | { |
3a45b867 | 1245 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1246 | struct snd_soc_dapm_widget *w; |
1247 | int reg, power; | |
b22ead2a MB |
1248 | unsigned int value = 0; |
1249 | unsigned int mask = 0; | |
1250 | unsigned int cur_mask; | |
1251 | ||
1252 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1253 | power_list)->reg; | |
1254 | ||
1255 | list_for_each_entry(w, pending, power_list) { | |
1256 | cur_mask = 1 << w->shift; | |
1257 | BUG_ON(reg != w->reg); | |
1258 | ||
1259 | if (w->invert) | |
1260 | power = !w->power; | |
1261 | else | |
1262 | power = w->power; | |
1263 | ||
1264 | mask |= cur_mask; | |
1265 | if (power) | |
1266 | value |= cur_mask; | |
1267 | ||
fd8d3bc0 | 1268 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1269 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1270 | w->name, reg, value, mask); | |
81628103 | 1271 | |
68f89ad8 MB |
1272 | /* Check for events */ |
1273 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1274 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1275 | } |
1276 | ||
1277 | if (reg >= 0) { | |
29376bc7 MB |
1278 | /* Any widget will do, they should all be updating the |
1279 | * same register. | |
1280 | */ | |
1281 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1282 | power_list); | |
1283 | ||
fd8d3bc0 | 1284 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1285 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1286 | value, mask, reg, card->pop_time); |
1287 | pop_wait(card->pop_time); | |
49575fb5 | 1288 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1289 | } |
1290 | ||
81628103 | 1291 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1292 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1293 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1294 | } |
b22ead2a | 1295 | } |
42aa3418 | 1296 | |
b22ead2a MB |
1297 | /* Apply a DAPM power sequence. |
1298 | * | |
1299 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1300 | * order to minimise the number of writes to the device required | |
1301 | * multiple widgets will be updated in a single write where possible. | |
1302 | * Currently anything that requires more than a single write is not | |
1303 | * handled. | |
1304 | */ | |
ce6120cc | 1305 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1306 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1307 | { |
1308 | struct snd_soc_dapm_widget *w, *n; | |
1309 | LIST_HEAD(pending); | |
1310 | int cur_sort = -1; | |
20e4859d | 1311 | int cur_subseq = -1; |
b22ead2a | 1312 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1313 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1314 | int ret, i; |
828a842f MB |
1315 | int *sort; |
1316 | ||
1317 | if (power_up) | |
1318 | sort = dapm_up_seq; | |
1319 | else | |
1320 | sort = dapm_down_seq; | |
163cac06 | 1321 | |
b22ead2a MB |
1322 | list_for_each_entry_safe(w, n, list, power_list) { |
1323 | ret = 0; | |
1324 | ||
1325 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1326 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1327 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1328 | if (!list_empty(&pending)) |
7be31be8 | 1329 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1330 | |
474b62d6 MB |
1331 | if (cur_dapm && cur_dapm->seq_notifier) { |
1332 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1333 | if (sort[i] == cur_sort) | |
1334 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1335 | i, |
1336 | cur_subseq); | |
474b62d6 MB |
1337 | } |
1338 | ||
b22ead2a MB |
1339 | INIT_LIST_HEAD(&pending); |
1340 | cur_sort = -1; | |
b0b3e6f8 | 1341 | cur_subseq = INT_MIN; |
b22ead2a | 1342 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1343 | cur_dapm = NULL; |
b22ead2a MB |
1344 | } |
1345 | ||
163cac06 MB |
1346 | switch (w->id) { |
1347 | case snd_soc_dapm_pre: | |
1348 | if (!w->event) | |
b22ead2a MB |
1349 | list_for_each_entry_safe_continue(w, n, list, |
1350 | power_list); | |
163cac06 | 1351 | |
b22ead2a | 1352 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1353 | ret = w->event(w, |
1354 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1355 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1356 | ret = w->event(w, |
1357 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1358 | break; |
1359 | ||
1360 | case snd_soc_dapm_post: | |
1361 | if (!w->event) | |
b22ead2a MB |
1362 | list_for_each_entry_safe_continue(w, n, list, |
1363 | power_list); | |
163cac06 | 1364 | |
b22ead2a | 1365 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1366 | ret = w->event(w, |
1367 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1368 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1369 | ret = w->event(w, |
1370 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1371 | break; |
1372 | ||
b22ead2a | 1373 | default: |
81628103 MB |
1374 | /* Queue it up for application */ |
1375 | cur_sort = sort[w->id]; | |
20e4859d | 1376 | cur_subseq = w->subseq; |
81628103 | 1377 | cur_reg = w->reg; |
7be31be8 | 1378 | cur_dapm = w->dapm; |
81628103 MB |
1379 | list_move(&w->power_list, &pending); |
1380 | break; | |
163cac06 | 1381 | } |
b22ead2a MB |
1382 | |
1383 | if (ret < 0) | |
f7d41ae8 JN |
1384 | dev_err(w->dapm->dev, |
1385 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1386 | } |
b22ead2a MB |
1387 | |
1388 | if (!list_empty(&pending)) | |
28e86808 | 1389 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1390 | |
1391 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1392 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1393 | if (sort[i] == cur_sort) | |
1394 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1395 | i, cur_subseq); |
474b62d6 | 1396 | } |
42aa3418 MB |
1397 | } |
1398 | ||
97404f2e MB |
1399 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1400 | { | |
1401 | struct snd_soc_dapm_update *update = dapm->update; | |
1402 | struct snd_soc_dapm_widget *w; | |
1403 | int ret; | |
1404 | ||
1405 | if (!update) | |
1406 | return; | |
1407 | ||
1408 | w = update->widget; | |
1409 | ||
1410 | if (w->event && | |
1411 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1412 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1413 | if (ret != 0) | |
1414 | pr_err("%s DAPM pre-event failed: %d\n", | |
1415 | w->name, ret); | |
1416 | } | |
1417 | ||
49575fb5 | 1418 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1419 | update->val); |
1420 | if (ret < 0) | |
1421 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1422 | ||
1423 | if (w->event && | |
1424 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1425 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1426 | if (ret != 0) | |
1427 | pr_err("%s DAPM post-event failed: %d\n", | |
1428 | w->name, ret); | |
1429 | } | |
1430 | } | |
1431 | ||
9d0624a7 MB |
1432 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1433 | * they're changing state. | |
1434 | */ | |
1435 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1436 | { | |
1437 | struct snd_soc_dapm_context *d = data; | |
1438 | int ret; | |
1439 | ||
56fba41f MB |
1440 | /* If we're off and we're not supposed to be go into STANDBY */ |
1441 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1442 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1443 | if (d->dev) |
1444 | pm_runtime_get_sync(d->dev); | |
1445 | ||
9d0624a7 MB |
1446 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1447 | if (ret != 0) | |
1448 | dev_err(d->dev, | |
1449 | "Failed to turn on bias: %d\n", ret); | |
1450 | } | |
1451 | ||
56fba41f MB |
1452 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1453 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1454 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1455 | if (ret != 0) | |
1456 | dev_err(d->dev, | |
1457 | "Failed to prepare bias: %d\n", ret); | |
1458 | } | |
1459 | } | |
1460 | ||
1461 | /* Async callback run prior to DAPM sequences - brings to their final | |
1462 | * state. | |
1463 | */ | |
1464 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1465 | { | |
1466 | struct snd_soc_dapm_context *d = data; | |
1467 | int ret; | |
1468 | ||
1469 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1470 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1471 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1472 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1473 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1474 | if (ret != 0) | |
1475 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1476 | ret); | |
1477 | } | |
97404f2e | 1478 | |
9d0624a7 | 1479 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1480 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1481 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1482 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1483 | if (ret != 0) | |
1484 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
f1aac484 MB |
1485 | |
1486 | if (d->dev) | |
fb644e9c | 1487 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1488 | } |
1489 | ||
1490 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1491 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1492 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1493 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1494 | if (ret != 0) | |
1495 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1496 | ret); | |
1497 | } | |
1498 | } | |
97404f2e | 1499 | |
fe4fda5d MB |
1500 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1501 | bool power, bool connect) | |
1502 | { | |
1503 | /* If a connection is being made or broken then that update | |
1504 | * will have marked the peer dirty, otherwise the widgets are | |
1505 | * not connected and this update has no impact. */ | |
1506 | if (!connect) | |
1507 | return; | |
1508 | ||
1509 | /* If the peer is already in the state we're moving to then we | |
1510 | * won't have an impact on it. */ | |
1511 | if (power != peer->power) | |
75c1f891 | 1512 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1513 | } |
1514 | ||
05623c43 MB |
1515 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1516 | struct list_head *up_list, | |
1517 | struct list_head *down_list) | |
1518 | { | |
db432b41 MB |
1519 | struct snd_soc_dapm_path *path; |
1520 | ||
05623c43 MB |
1521 | if (w->power == power) |
1522 | return; | |
1523 | ||
1524 | trace_snd_soc_dapm_widget_power(w, power); | |
1525 | ||
db432b41 | 1526 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1527 | * also. |
db432b41 MB |
1528 | */ |
1529 | list_for_each_entry(path, &w->sources, list_sink) { | |
1530 | if (path->source) { | |
fe4fda5d MB |
1531 | dapm_widget_set_peer_power(path->source, power, |
1532 | path->connect); | |
db432b41 MB |
1533 | } |
1534 | } | |
f3bf3e45 MB |
1535 | switch (w->id) { |
1536 | case snd_soc_dapm_supply: | |
62ea874a | 1537 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1538 | case snd_soc_dapm_clock_supply: |
f3bf3e45 MB |
1539 | /* Supplies can't affect their outputs, only their inputs */ |
1540 | break; | |
1541 | default: | |
1542 | list_for_each_entry(path, &w->sinks, list_source) { | |
1543 | if (path->sink) { | |
1544 | dapm_widget_set_peer_power(path->sink, power, | |
1545 | path->connect); | |
1546 | } | |
db432b41 | 1547 | } |
f3bf3e45 | 1548 | break; |
db432b41 MB |
1549 | } |
1550 | ||
05623c43 MB |
1551 | if (power) |
1552 | dapm_seq_insert(w, up_list, true); | |
1553 | else | |
1554 | dapm_seq_insert(w, down_list, false); | |
1555 | ||
1556 | w->power = power; | |
1557 | } | |
1558 | ||
7c81beb0 MB |
1559 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1560 | struct list_head *up_list, | |
1561 | struct list_head *down_list) | |
1562 | { | |
7c81beb0 MB |
1563 | int power; |
1564 | ||
1565 | switch (w->id) { | |
1566 | case snd_soc_dapm_pre: | |
1567 | dapm_seq_insert(w, down_list, false); | |
1568 | break; | |
1569 | case snd_soc_dapm_post: | |
1570 | dapm_seq_insert(w, up_list, true); | |
1571 | break; | |
1572 | ||
1573 | default: | |
d805002b | 1574 | power = dapm_widget_power_check(w); |
7c81beb0 | 1575 | |
05623c43 | 1576 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1577 | break; |
1578 | } | |
1579 | } | |
1580 | ||
2b97eabc RP |
1581 | /* |
1582 | * Scan each dapm widget for complete audio path. | |
1583 | * A complete path is a route that has valid endpoints i.e.:- | |
1584 | * | |
1585 | * o DAC to output pin. | |
1586 | * o Input Pin to ADC. | |
1587 | * o Input pin to Output pin (bypass, sidetone) | |
1588 | * o DAC to ADC (loopback). | |
1589 | */ | |
ce6120cc | 1590 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1591 | { |
12ea2c78 | 1592 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1593 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1594 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1595 | LIST_HEAD(up_list); |
1596 | LIST_HEAD(down_list); | |
2955b47d | 1597 | ASYNC_DOMAIN_EXCLUSIVE(async_domain); |
56fba41f | 1598 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1599 | |
84e90930 MB |
1600 | trace_snd_soc_dapm_start(card); |
1601 | ||
56fba41f | 1602 | list_for_each_entry(d, &card->dapm_list, list) { |
497098be MB |
1603 | if (d->idle_bias_off) |
1604 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1605 | else | |
1606 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
56fba41f | 1607 | } |
7be31be8 | 1608 | |
6c120e19 | 1609 | dapm_reset(card); |
9b8a83b2 | 1610 | |
6d3ddc81 | 1611 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1612 | * lists indicating if they should be powered up or down. We |
1613 | * only check widgets that have been flagged as dirty but note | |
1614 | * that new widgets may be added to the dirty list while we | |
1615 | * iterate. | |
6d3ddc81 | 1616 | */ |
db432b41 | 1617 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1618 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1619 | } |
1620 | ||
f9de6d74 | 1621 | list_for_each_entry(w, &card->widgets, list) { |
0ff97ebf MB |
1622 | switch (w->id) { |
1623 | case snd_soc_dapm_pre: | |
1624 | case snd_soc_dapm_post: | |
1625 | /* These widgets always need to be powered */ | |
1626 | break; | |
1627 | default: | |
1628 | list_del_init(&w->dirty); | |
1629 | break; | |
1630 | } | |
db432b41 | 1631 | |
f9de6d74 MB |
1632 | if (w->power) { |
1633 | d = w->dapm; | |
1634 | ||
1635 | /* Supplies and micbiases only bring the | |
1636 | * context up to STANDBY as unless something | |
1637 | * else is active and passing audio they | |
afe62367 MB |
1638 | * generally don't require full power. Signal |
1639 | * generators are virtual pins and have no | |
1640 | * power impact themselves. | |
f9de6d74 MB |
1641 | */ |
1642 | switch (w->id) { | |
afe62367 MB |
1643 | case snd_soc_dapm_siggen: |
1644 | break; | |
f9de6d74 | 1645 | case snd_soc_dapm_supply: |
62ea874a | 1646 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 1647 | case snd_soc_dapm_clock_supply: |
f9de6d74 MB |
1648 | case snd_soc_dapm_micbias: |
1649 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1650 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1651 | break; | |
1652 | default: | |
1653 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1654 | break; | |
1655 | } | |
1656 | } | |
1657 | ||
1658 | } | |
1659 | ||
85a843c5 MB |
1660 | /* Force all contexts in the card to the same bias state if |
1661 | * they're not ground referenced. | |
1662 | */ | |
56fba41f | 1663 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1664 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1665 | if (d->target_bias_level > bias) |
1666 | bias = d->target_bias_level; | |
52ba67bf | 1667 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1668 | if (!d->idle_bias_off) |
1669 | d->target_bias_level = bias; | |
52ba67bf | 1670 | |
de02d078 | 1671 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1672 | |
9d0624a7 MB |
1673 | /* Run all the bias changes in parallel */ |
1674 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1675 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1676 | &async_domain); | |
1677 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1678 | |
6d3ddc81 | 1679 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1680 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1681 | |
97404f2e MB |
1682 | dapm_widget_update(dapm); |
1683 | ||
6d3ddc81 | 1684 | /* Now power up. */ |
828a842f | 1685 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1686 | |
9d0624a7 MB |
1687 | /* Run all the bias changes in parallel */ |
1688 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1689 | async_schedule_domain(dapm_post_sequence_async, d, | |
1690 | &async_domain); | |
1691 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1692 | |
8078d87f LG |
1693 | /* do we need to notify any clients that DAPM event is complete */ |
1694 | list_for_each_entry(d, &card->dapm_list, list) { | |
1695 | if (d->stream_event) | |
1696 | d->stream_event(d, event); | |
1697 | } | |
1698 | ||
fd8d3bc0 JN |
1699 | pop_dbg(dapm->dev, card->pop_time, |
1700 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1701 | pop_wait(card->pop_time); |
cb507e7e | 1702 | |
84e90930 MB |
1703 | trace_snd_soc_dapm_done(card); |
1704 | ||
42aa3418 | 1705 | return 0; |
2b97eabc RP |
1706 | } |
1707 | ||
79fb9387 | 1708 | #ifdef CONFIG_DEBUG_FS |
79fb9387 MB |
1709 | static ssize_t dapm_widget_power_read_file(struct file *file, |
1710 | char __user *user_buf, | |
1711 | size_t count, loff_t *ppos) | |
1712 | { | |
1713 | struct snd_soc_dapm_widget *w = file->private_data; | |
1714 | char *buf; | |
1715 | int in, out; | |
1716 | ssize_t ret; | |
1717 | struct snd_soc_dapm_path *p = NULL; | |
1718 | ||
1719 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1720 | if (!buf) | |
1721 | return -ENOMEM; | |
1722 | ||
ec2e3031 | 1723 | in = is_connected_input_ep(w, NULL); |
ce6120cc | 1724 | dapm_clear_walk(w->dapm); |
ec2e3031 | 1725 | out = is_connected_output_ep(w, NULL); |
ce6120cc | 1726 | dapm_clear_walk(w->dapm); |
79fb9387 | 1727 | |
f13ebada MB |
1728 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1729 | w->name, w->power ? "On" : "Off", | |
1730 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1731 | |
d033c36a MB |
1732 | if (w->reg >= 0) |
1733 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1734 | " - R%d(0x%x) bit %d", | |
1735 | w->reg, w->reg, w->shift); | |
1736 | ||
1737 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1738 | ||
3eef08ba MB |
1739 | if (w->sname) |
1740 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1741 | w->sname, | |
1742 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1743 | |
1744 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1745 | if (p->connected && !p->connected(w, p->sink)) |
1746 | continue; | |
1747 | ||
79fb9387 MB |
1748 | if (p->connect) |
1749 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1750 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1751 | p->name ? p->name : "static", |
1752 | p->source->name); | |
1753 | } | |
1754 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1755 | if (p->connected && !p->connected(w, p->sink)) |
1756 | continue; | |
1757 | ||
79fb9387 MB |
1758 | if (p->connect) |
1759 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1760 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1761 | p->name ? p->name : "static", |
1762 | p->sink->name); | |
1763 | } | |
1764 | ||
1765 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1766 | ||
1767 | kfree(buf); | |
1768 | return ret; | |
1769 | } | |
1770 | ||
1771 | static const struct file_operations dapm_widget_power_fops = { | |
234e3405 | 1772 | .open = simple_open, |
79fb9387 | 1773 | .read = dapm_widget_power_read_file, |
6038f373 | 1774 | .llseek = default_llseek, |
79fb9387 MB |
1775 | }; |
1776 | ||
ef49e4fa MB |
1777 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, |
1778 | size_t count, loff_t *ppos) | |
1779 | { | |
1780 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1781 | char *level; | |
1782 | ||
1783 | switch (dapm->bias_level) { | |
1784 | case SND_SOC_BIAS_ON: | |
1785 | level = "On\n"; | |
1786 | break; | |
1787 | case SND_SOC_BIAS_PREPARE: | |
1788 | level = "Prepare\n"; | |
1789 | break; | |
1790 | case SND_SOC_BIAS_STANDBY: | |
1791 | level = "Standby\n"; | |
1792 | break; | |
1793 | case SND_SOC_BIAS_OFF: | |
1794 | level = "Off\n"; | |
1795 | break; | |
1796 | default: | |
1797 | BUG(); | |
1798 | level = "Unknown\n"; | |
1799 | break; | |
1800 | } | |
1801 | ||
1802 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1803 | strlen(level)); | |
1804 | } | |
1805 | ||
1806 | static const struct file_operations dapm_bias_fops = { | |
234e3405 | 1807 | .open = simple_open, |
ef49e4fa MB |
1808 | .read = dapm_bias_read_file, |
1809 | .llseek = default_llseek, | |
1810 | }; | |
1811 | ||
8eecaf62 LPC |
1812 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1813 | struct dentry *parent) | |
79fb9387 | 1814 | { |
79fb9387 MB |
1815 | struct dentry *d; |
1816 | ||
8eecaf62 LPC |
1817 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1818 | ||
1819 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1820 | dev_warn(dapm->dev, |
8eecaf62 | 1821 | "Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1822 | return; |
8eecaf62 | 1823 | } |
79fb9387 | 1824 | |
ef49e4fa MB |
1825 | d = debugfs_create_file("bias_level", 0444, |
1826 | dapm->debugfs_dapm, dapm, | |
1827 | &dapm_bias_fops); | |
1828 | if (!d) | |
1829 | dev_warn(dapm->dev, | |
1830 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1831 | } |
ef49e4fa | 1832 | |
d5d1e0be LPC |
1833 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1834 | { | |
1835 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1836 | struct dentry *d; | |
79fb9387 | 1837 | |
d5d1e0be LPC |
1838 | if (!dapm->debugfs_dapm || !w->name) |
1839 | return; | |
1840 | ||
1841 | d = debugfs_create_file(w->name, 0444, | |
1842 | dapm->debugfs_dapm, w, | |
1843 | &dapm_widget_power_fops); | |
1844 | if (!d) | |
1845 | dev_warn(w->dapm->dev, | |
1846 | "ASoC: Failed to create %s debugfs file\n", | |
1847 | w->name); | |
79fb9387 | 1848 | } |
d5d1e0be | 1849 | |
6c45e126 LPC |
1850 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1851 | { | |
1852 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1853 | } | |
1854 | ||
79fb9387 | 1855 | #else |
8eecaf62 LPC |
1856 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1857 | struct dentry *parent) | |
79fb9387 MB |
1858 | { |
1859 | } | |
d5d1e0be LPC |
1860 | |
1861 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1862 | { | |
1863 | } | |
1864 | ||
6c45e126 LPC |
1865 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1866 | { | |
1867 | } | |
1868 | ||
79fb9387 MB |
1869 | #endif |
1870 | ||
2b97eabc | 1871 | /* test and update the power status of a mux widget */ |
4edbb345 | 1872 | static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
40f02cd9 | 1873 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1874 | { |
1875 | struct snd_soc_dapm_path *path; | |
1876 | int found = 0; | |
1877 | ||
eff317d0 | 1878 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1879 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1880 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1881 | return -ENODEV; |
1882 | ||
2b97eabc | 1883 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1884 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1885 | if (path->kcontrol != kcontrol) |
1886 | continue; | |
1887 | ||
cb01e2b9 | 1888 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1889 | continue; |
1890 | ||
1891 | found = 1; | |
1892 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1893 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1894 | path->connect = 1; /* new connection */ |
75c1f891 | 1895 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1896 | } else { |
1897 | if (path->connect) | |
75c1f891 MB |
1898 | dapm_mark_dirty(path->source, |
1899 | "mux disconnection"); | |
2b97eabc | 1900 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1901 | } |
2b97eabc RP |
1902 | } |
1903 | ||
db432b41 | 1904 | if (found) { |
75c1f891 | 1905 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1906 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1907 | } |
2b97eabc | 1908 | |
618dae11 | 1909 | return found; |
2b97eabc | 1910 | } |
4edbb345 LG |
1911 | |
1912 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, | |
1913 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) | |
1914 | { | |
1915 | struct snd_soc_card *card = widget->dapm->card; | |
1916 | int ret; | |
1917 | ||
3cd04343 | 1918 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1919 | ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1920 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1921 | if (ret > 0) |
1922 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1923 | return ret; |
1924 | } | |
40f02cd9 | 1925 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1926 | |
1b075e3f | 1927 | /* test and update the power status of a mixer or switch widget */ |
4edbb345 | 1928 | static int soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1929 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1930 | { |
1931 | struct snd_soc_dapm_path *path; | |
1932 | int found = 0; | |
1933 | ||
1b075e3f | 1934 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1935 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1936 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1937 | return -ENODEV; |
1938 | ||
2b97eabc | 1939 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1940 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1941 | if (path->kcontrol != kcontrol) |
1942 | continue; | |
1943 | ||
1944 | /* found, now check type */ | |
1945 | found = 1; | |
283375ce | 1946 | path->connect = connect; |
75c1f891 | 1947 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
1948 | } |
1949 | ||
db432b41 | 1950 | if (found) { |
75c1f891 | 1951 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 1952 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1953 | } |
2b97eabc | 1954 | |
618dae11 | 1955 | return found; |
2b97eabc | 1956 | } |
4edbb345 LG |
1957 | |
1958 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, | |
1959 | struct snd_kcontrol *kcontrol, int connect) | |
1960 | { | |
1961 | struct snd_soc_card *card = widget->dapm->card; | |
1962 | int ret; | |
1963 | ||
3cd04343 | 1964 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1965 | ret = soc_dapm_mixer_update_power(widget, kcontrol, connect); |
1966 | mutex_unlock(&card->dapm_mutex); | |
618dae11 LG |
1967 | if (ret > 0) |
1968 | soc_dpcm_runtime_update(widget); | |
4edbb345 LG |
1969 | return ret; |
1970 | } | |
40f02cd9 | 1971 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
1972 | |
1973 | /* show dapm widget status in sys fs */ | |
1974 | static ssize_t dapm_widget_show(struct device *dev, | |
1975 | struct device_attribute *attr, char *buf) | |
1976 | { | |
36ae1a96 | 1977 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 1978 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
1979 | struct snd_soc_dapm_widget *w; |
1980 | int count = 0; | |
1981 | char *state = "not set"; | |
1982 | ||
97c866de JN |
1983 | list_for_each_entry(w, &codec->card->widgets, list) { |
1984 | if (w->dapm != &codec->dapm) | |
1985 | continue; | |
2b97eabc RP |
1986 | |
1987 | /* only display widgets that burnm power */ | |
1988 | switch (w->id) { | |
1989 | case snd_soc_dapm_hp: | |
1990 | case snd_soc_dapm_mic: | |
1991 | case snd_soc_dapm_spk: | |
1992 | case snd_soc_dapm_line: | |
1993 | case snd_soc_dapm_micbias: | |
1994 | case snd_soc_dapm_dac: | |
1995 | case snd_soc_dapm_adc: | |
1996 | case snd_soc_dapm_pga: | |
d88429a6 | 1997 | case snd_soc_dapm_out_drv: |
2b97eabc | 1998 | case snd_soc_dapm_mixer: |
ca9c1aae | 1999 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 2000 | case snd_soc_dapm_supply: |
62ea874a | 2001 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2002 | case snd_soc_dapm_clock_supply: |
2b97eabc RP |
2003 | if (w->name) |
2004 | count += sprintf(buf + count, "%s: %s\n", | |
2005 | w->name, w->power ? "On":"Off"); | |
2006 | break; | |
2007 | default: | |
2008 | break; | |
2009 | } | |
2010 | } | |
2011 | ||
ce6120cc | 2012 | switch (codec->dapm.bias_level) { |
0be9898a MB |
2013 | case SND_SOC_BIAS_ON: |
2014 | state = "On"; | |
2b97eabc | 2015 | break; |
0be9898a MB |
2016 | case SND_SOC_BIAS_PREPARE: |
2017 | state = "Prepare"; | |
2b97eabc | 2018 | break; |
0be9898a MB |
2019 | case SND_SOC_BIAS_STANDBY: |
2020 | state = "Standby"; | |
2b97eabc | 2021 | break; |
0be9898a MB |
2022 | case SND_SOC_BIAS_OFF: |
2023 | state = "Off"; | |
2b97eabc RP |
2024 | break; |
2025 | } | |
2026 | count += sprintf(buf + count, "PM State: %s\n", state); | |
2027 | ||
2028 | return count; | |
2029 | } | |
2030 | ||
2031 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
2032 | ||
2033 | int snd_soc_dapm_sys_add(struct device *dev) | |
2034 | { | |
12ef193d | 2035 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2036 | } |
2037 | ||
2038 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
2039 | { | |
aef90843 | 2040 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
2041 | } |
2042 | ||
2043 | /* free all dapm widgets and resources */ | |
ce6120cc | 2044 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2045 | { |
2046 | struct snd_soc_dapm_widget *w, *next_w; | |
2047 | struct snd_soc_dapm_path *p, *next_p; | |
2048 | ||
97c866de JN |
2049 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
2050 | if (w->dapm != dapm) | |
2051 | continue; | |
2b97eabc | 2052 | list_del(&w->list); |
8ddab3f5 JN |
2053 | /* |
2054 | * remove source and sink paths associated to this widget. | |
2055 | * While removing the path, remove reference to it from both | |
2056 | * source and sink widgets so that path is removed only once. | |
2057 | */ | |
2058 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
2059 | list_del(&p->list_sink); | |
2060 | list_del(&p->list_source); | |
2061 | list_del(&p->list); | |
2062 | kfree(p->long_name); | |
2063 | kfree(p); | |
2064 | } | |
2065 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
2066 | list_del(&p->list_sink); | |
2067 | list_del(&p->list_source); | |
2068 | list_del(&p->list); | |
2069 | kfree(p->long_name); | |
2070 | kfree(p); | |
2071 | } | |
fad59888 | 2072 | kfree(w->kcontrols); |
ead9b919 | 2073 | kfree(w->name); |
2b97eabc RP |
2074 | kfree(w); |
2075 | } | |
2b97eabc RP |
2076 | } |
2077 | ||
91a5fca4 LPC |
2078 | static struct snd_soc_dapm_widget *dapm_find_widget( |
2079 | struct snd_soc_dapm_context *dapm, const char *pin, | |
2080 | bool search_other_contexts) | |
a5302181 LG |
2081 | { |
2082 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 2083 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 2084 | |
97c866de | 2085 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 2086 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
2087 | if (w->dapm == dapm) |
2088 | return w; | |
2089 | else | |
2090 | fallback = w; | |
a5302181 LG |
2091 | } |
2092 | } | |
2093 | ||
91a5fca4 LPC |
2094 | if (search_other_contexts) |
2095 | return fallback; | |
2096 | ||
2097 | return NULL; | |
2098 | } | |
2099 | ||
2100 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
2101 | const char *pin, int status) | |
2102 | { | |
2103 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
2104 | ||
2105 | if (!w) { | |
2106 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2107 | return -EINVAL; | |
0d86733c MB |
2108 | } |
2109 | ||
1a8b2d9d MB |
2110 | if (w->connected != status) |
2111 | dapm_mark_dirty(w, "pin configuration"); | |
2112 | ||
91a5fca4 LPC |
2113 | w->connected = status; |
2114 | if (status == 0) | |
2115 | w->force = 0; | |
2116 | ||
2117 | return 0; | |
a5302181 LG |
2118 | } |
2119 | ||
2b97eabc | 2120 | /** |
a5302181 | 2121 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 2122 | * @dapm: DAPM context |
2b97eabc RP |
2123 | * |
2124 | * Walks all dapm audio paths and powers widgets according to their | |
2125 | * stream or path usage. | |
2126 | * | |
2127 | * Returns 0 for success. | |
2128 | */ | |
ce6120cc | 2129 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2130 | { |
a73fb2df LG |
2131 | int ret; |
2132 | ||
4f4c0072 MB |
2133 | /* |
2134 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2135 | * silly DAPM runs during card startup. | |
2136 | */ | |
2137 | if (!dapm->card || !dapm->card->instantiated) | |
2138 | return 0; | |
2139 | ||
3cd04343 | 2140 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
a73fb2df LG |
2141 | ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2142 | mutex_unlock(&dapm->card->dapm_mutex); | |
2143 | return ret; | |
2b97eabc | 2144 | } |
a5302181 | 2145 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2146 | |
ce6120cc | 2147 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 2148 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
2149 | { |
2150 | struct snd_soc_dapm_path *path; | |
2151 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 2152 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 2153 | const char *sink; |
215edda3 | 2154 | const char *control = route->control; |
ead9b919 JN |
2155 | const char *source; |
2156 | char prefixed_sink[80]; | |
2157 | char prefixed_source[80]; | |
2b97eabc RP |
2158 | int ret = 0; |
2159 | ||
88e8b9a8 | 2160 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
2161 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2162 | dapm->codec->name_prefix, route->sink); | |
2163 | sink = prefixed_sink; | |
2164 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2165 | dapm->codec->name_prefix, route->source); | |
2166 | source = prefixed_source; | |
2167 | } else { | |
2168 | sink = route->sink; | |
2169 | source = route->source; | |
2170 | } | |
2171 | ||
97c866de JN |
2172 | /* |
2173 | * find src and dest widgets over all widgets but favor a widget from | |
2174 | * current DAPM context | |
2175 | */ | |
2176 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 2177 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
2178 | wtsink = w; |
2179 | if (w->dapm == dapm) | |
2180 | wsink = w; | |
2b97eabc RP |
2181 | continue; |
2182 | } | |
2183 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
2184 | wtsource = w; |
2185 | if (w->dapm == dapm) | |
2186 | wsource = w; | |
2b97eabc RP |
2187 | } |
2188 | } | |
97c866de JN |
2189 | /* use widget from another DAPM context if not found from this */ |
2190 | if (!wsink) | |
2191 | wsink = wtsink; | |
2192 | if (!wsource) | |
2193 | wsource = wtsource; | |
2b97eabc RP |
2194 | |
2195 | if (wsource == NULL || wsink == NULL) | |
2196 | return -ENODEV; | |
2197 | ||
2198 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2199 | if (!path) | |
2200 | return -ENOMEM; | |
2201 | ||
2202 | path->source = wsource; | |
2203 | path->sink = wsink; | |
215edda3 | 2204 | path->connected = route->connected; |
2b97eabc RP |
2205 | INIT_LIST_HEAD(&path->list); |
2206 | INIT_LIST_HEAD(&path->list_source); | |
2207 | INIT_LIST_HEAD(&path->list_sink); | |
2208 | ||
2209 | /* check for external widgets */ | |
2210 | if (wsink->id == snd_soc_dapm_input) { | |
2211 | if (wsource->id == snd_soc_dapm_micbias || | |
2212 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2213 | wsource->id == snd_soc_dapm_line || |
2214 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2215 | wsink->ext = 1; |
2216 | } | |
2217 | if (wsource->id == snd_soc_dapm_output) { | |
2218 | if (wsink->id == snd_soc_dapm_spk || | |
2219 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2220 | wsink->id == snd_soc_dapm_line || |
2221 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2222 | wsource->ext = 1; |
2223 | } | |
2224 | ||
2225 | /* connect static paths */ | |
2226 | if (control == NULL) { | |
8ddab3f5 | 2227 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2228 | list_add(&path->list_sink, &wsink->sources); |
2229 | list_add(&path->list_source, &wsource->sinks); | |
2230 | path->connect = 1; | |
2231 | return 0; | |
2232 | } | |
2233 | ||
2234 | /* connect dynamic paths */ | |
dc2bea61 | 2235 | switch (wsink->id) { |
2b97eabc RP |
2236 | case snd_soc_dapm_adc: |
2237 | case snd_soc_dapm_dac: | |
2238 | case snd_soc_dapm_pga: | |
d88429a6 | 2239 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2240 | case snd_soc_dapm_input: |
2241 | case snd_soc_dapm_output: | |
1ab97c8c | 2242 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2243 | case snd_soc_dapm_micbias: |
2244 | case snd_soc_dapm_vmid: | |
2245 | case snd_soc_dapm_pre: | |
2246 | case snd_soc_dapm_post: | |
246d0a17 | 2247 | case snd_soc_dapm_supply: |
62ea874a | 2248 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 2249 | case snd_soc_dapm_clock_supply: |
010ff262 MB |
2250 | case snd_soc_dapm_aif_in: |
2251 | case snd_soc_dapm_aif_out: | |
888df395 | 2252 | case snd_soc_dapm_dai: |
c74184ed | 2253 | case snd_soc_dapm_dai_link: |
8ddab3f5 | 2254 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2255 | list_add(&path->list_sink, &wsink->sources); |
2256 | list_add(&path->list_source, &wsource->sinks); | |
2257 | path->connect = 1; | |
2258 | return 0; | |
2259 | case snd_soc_dapm_mux: | |
24ff33ac | 2260 | case snd_soc_dapm_virt_mux: |
74155556 | 2261 | case snd_soc_dapm_value_mux: |
ce6120cc | 2262 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2263 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2264 | if (ret != 0) |
2265 | goto err; | |
2266 | break; | |
2267 | case snd_soc_dapm_switch: | |
2268 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2269 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2270 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2271 | if (ret != 0) |
2272 | goto err; | |
2273 | break; | |
2274 | case snd_soc_dapm_hp: | |
2275 | case snd_soc_dapm_mic: | |
2276 | case snd_soc_dapm_line: | |
2277 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2278 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2279 | list_add(&path->list_sink, &wsink->sources); |
2280 | list_add(&path->list_source, &wsource->sinks); | |
2281 | path->connect = 0; | |
2282 | return 0; | |
2283 | } | |
fabd0384 MB |
2284 | |
2285 | dapm_mark_dirty(wsource, "Route added"); | |
2286 | dapm_mark_dirty(wsink, "Route added"); | |
2287 | ||
2b97eabc RP |
2288 | return 0; |
2289 | ||
2290 | err: | |
f7d41ae8 JN |
2291 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
2292 | source, control, sink); | |
2b97eabc RP |
2293 | kfree(path); |
2294 | return ret; | |
2295 | } | |
105f1c28 | 2296 | |
efcc3c61 MB |
2297 | static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, |
2298 | const struct snd_soc_dapm_route *route) | |
2299 | { | |
2300 | struct snd_soc_dapm_path *path, *p; | |
2301 | const char *sink; | |
2302 | const char *source; | |
2303 | char prefixed_sink[80]; | |
2304 | char prefixed_source[80]; | |
2305 | ||
2306 | if (route->control) { | |
2307 | dev_err(dapm->dev, | |
2308 | "Removal of routes with controls not supported\n"); | |
2309 | return -EINVAL; | |
2310 | } | |
2311 | ||
2312 | if (dapm->codec && dapm->codec->name_prefix) { | |
2313 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", | |
2314 | dapm->codec->name_prefix, route->sink); | |
2315 | sink = prefixed_sink; | |
2316 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2317 | dapm->codec->name_prefix, route->source); | |
2318 | source = prefixed_source; | |
2319 | } else { | |
2320 | sink = route->sink; | |
2321 | source = route->source; | |
2322 | } | |
2323 | ||
2324 | path = NULL; | |
2325 | list_for_each_entry(p, &dapm->card->paths, list) { | |
2326 | if (strcmp(p->source->name, source) != 0) | |
2327 | continue; | |
2328 | if (strcmp(p->sink->name, sink) != 0) | |
2329 | continue; | |
2330 | path = p; | |
2331 | break; | |
2332 | } | |
2333 | ||
2334 | if (path) { | |
2335 | dapm_mark_dirty(path->source, "Route removed"); | |
2336 | dapm_mark_dirty(path->sink, "Route removed"); | |
2337 | ||
2338 | list_del(&path->list); | |
2339 | list_del(&path->list_sink); | |
2340 | list_del(&path->list_source); | |
2341 | kfree(path); | |
2342 | } else { | |
2343 | dev_warn(dapm->dev, "Route %s->%s does not exist\n", | |
2344 | source, sink); | |
2345 | } | |
2346 | ||
2347 | return 0; | |
2348 | } | |
2349 | ||
105f1c28 MB |
2350 | /** |
2351 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2352 | * @dapm: DAPM context |
105f1c28 MB |
2353 | * @route: audio routes |
2354 | * @num: number of routes | |
2355 | * | |
2356 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2357 | * the widget receiving the audio signal, whilst the source is the sender | |
2358 | * of the audio signal. | |
2359 | * | |
2360 | * Returns 0 for success else error. On error all resources can be freed | |
2361 | * with a call to snd_soc_card_free(). | |
2362 | */ | |
ce6120cc | 2363 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2364 | const struct snd_soc_dapm_route *route, int num) |
2365 | { | |
62d4a4b9 | 2366 | int i, r, ret = 0; |
105f1c28 | 2367 | |
a73fb2df | 2368 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2369 | for (i = 0; i < num; i++) { |
62d4a4b9 MB |
2370 | r = snd_soc_dapm_add_route(dapm, route); |
2371 | if (r < 0) { | |
f7d41ae8 JN |
2372 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
2373 | route->source, route->sink); | |
62d4a4b9 | 2374 | ret = r; |
105f1c28 MB |
2375 | } |
2376 | route++; | |
2377 | } | |
a73fb2df | 2378 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 | 2379 | |
60884c27 | 2380 | return ret; |
105f1c28 MB |
2381 | } |
2382 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2383 | ||
efcc3c61 MB |
2384 | /** |
2385 | * snd_soc_dapm_del_routes - Remove routes between DAPM widgets | |
2386 | * @dapm: DAPM context | |
2387 | * @route: audio routes | |
2388 | * @num: number of routes | |
2389 | * | |
2390 | * Removes routes from the DAPM context. | |
2391 | */ | |
2392 | int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, | |
2393 | const struct snd_soc_dapm_route *route, int num) | |
2394 | { | |
2395 | int i, ret = 0; | |
2396 | ||
2397 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); | |
2398 | for (i = 0; i < num; i++) { | |
2399 | snd_soc_dapm_del_route(dapm, route); | |
2400 | route++; | |
2401 | } | |
2402 | mutex_unlock(&dapm->card->dapm_mutex); | |
2403 | ||
2404 | return ret; | |
2405 | } | |
2406 | EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); | |
2407 | ||
bf3a9e13 MB |
2408 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2409 | const struct snd_soc_dapm_route *route) | |
2410 | { | |
2411 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2412 | route->source, | |
2413 | true); | |
2414 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2415 | route->sink, | |
2416 | true); | |
2417 | struct snd_soc_dapm_path *path; | |
2418 | int count = 0; | |
2419 | ||
2420 | if (!source) { | |
2421 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
2422 | route->source); | |
2423 | return -ENODEV; | |
2424 | } | |
2425 | ||
2426 | if (!sink) { | |
2427 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
2428 | route->sink); | |
2429 | return -ENODEV; | |
2430 | } | |
2431 | ||
2432 | if (route->control || route->connected) | |
2433 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
2434 | route->source, route->sink); | |
2435 | ||
2436 | list_for_each_entry(path, &source->sinks, list_source) { | |
2437 | if (path->sink == sink) { | |
2438 | path->weak = 1; | |
2439 | count++; | |
2440 | } | |
2441 | } | |
2442 | ||
2443 | if (count == 0) | |
2444 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
2445 | route->source, route->sink); | |
2446 | if (count > 1) | |
2447 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
2448 | count, route->source, route->sink); | |
2449 | ||
2450 | return 0; | |
2451 | } | |
2452 | ||
2453 | /** | |
2454 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2455 | * @dapm: DAPM context | |
2456 | * @route: audio routes | |
2457 | * @num: number of routes | |
2458 | * | |
2459 | * Mark existing routes matching those specified in the passed array | |
2460 | * as being weak, meaning that they are ignored for the purpose of | |
2461 | * power decisions. The main intended use case is for sidetone paths | |
2462 | * which couple audio between other independent paths if they are both | |
2463 | * active in order to make the combination work better at the user | |
2464 | * level but which aren't intended to be "used". | |
2465 | * | |
2466 | * Note that CODEC drivers should not use this as sidetone type paths | |
2467 | * can frequently also be used as bypass paths. | |
2468 | */ | |
2469 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2470 | const struct snd_soc_dapm_route *route, int num) | |
2471 | { | |
2472 | int i, err; | |
2473 | int ret = 0; | |
2474 | ||
a73fb2df | 2475 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2476 | for (i = 0; i < num; i++) { |
2477 | err = snd_soc_dapm_weak_route(dapm, route); | |
2478 | if (err) | |
2479 | ret = err; | |
2480 | route++; | |
2481 | } | |
a73fb2df | 2482 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2483 | |
2484 | return ret; | |
2485 | } | |
2486 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2487 | ||
2b97eabc RP |
2488 | /** |
2489 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2490 | * @dapm: DAPM context |
2b97eabc RP |
2491 | * |
2492 | * Checks the codec for any new dapm widgets and creates them if found. | |
2493 | * | |
2494 | * Returns 0 for success. | |
2495 | */ | |
ce6120cc | 2496 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2497 | { |
2498 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2499 | unsigned int val; |
2b97eabc | 2500 | |
a73fb2df LG |
2501 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
2502 | ||
97c866de | 2503 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2504 | { |
2505 | if (w->new) | |
2506 | continue; | |
2507 | ||
fad59888 SW |
2508 | if (w->num_kcontrols) { |
2509 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2510 | sizeof(struct snd_kcontrol *), | |
2511 | GFP_KERNEL); | |
a73fb2df LG |
2512 | if (!w->kcontrols) { |
2513 | mutex_unlock(&dapm->card->dapm_mutex); | |
fad59888 | 2514 | return -ENOMEM; |
a73fb2df | 2515 | } |
fad59888 SW |
2516 | } |
2517 | ||
2b97eabc RP |
2518 | switch(w->id) { |
2519 | case snd_soc_dapm_switch: | |
2520 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2521 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2522 | dapm_new_mixer(w); |
2b97eabc RP |
2523 | break; |
2524 | case snd_soc_dapm_mux: | |
24ff33ac | 2525 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2526 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2527 | dapm_new_mux(w); |
2b97eabc | 2528 | break; |
2b97eabc | 2529 | case snd_soc_dapm_pga: |
d88429a6 | 2530 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2531 | dapm_new_pga(w); |
2b97eabc | 2532 | break; |
7ca3a18b | 2533 | default: |
2b97eabc RP |
2534 | break; |
2535 | } | |
b66a70d5 MB |
2536 | |
2537 | /* Read the initial power state from the device */ | |
2538 | if (w->reg >= 0) { | |
0445bdf4 | 2539 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2540 | val &= 1 << w->shift; |
2541 | if (w->invert) | |
2542 | val = !val; | |
2543 | ||
2544 | if (val) | |
2545 | w->power = 1; | |
2546 | } | |
2547 | ||
2b97eabc | 2548 | w->new = 1; |
d5d1e0be | 2549 | |
7508b12a | 2550 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2551 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2552 | } |
2553 | ||
ce6120cc | 2554 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df | 2555 | mutex_unlock(&dapm->card->dapm_mutex); |
2b97eabc RP |
2556 | return 0; |
2557 | } | |
2558 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2559 | ||
2560 | /** | |
2561 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2562 | * @kcontrol: mixer control | |
ac11a2b3 | 2563 | * @ucontrol: control element information |
2b97eabc RP |
2564 | * |
2565 | * Callback to get the value of a dapm mixer control. | |
2566 | * | |
2567 | * Returns 0 for success. | |
2568 | */ | |
2569 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2570 | struct snd_ctl_elem_value *ucontrol) | |
2571 | { | |
fafd2176 SW |
2572 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2573 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2574 | struct soc_mixer_control *mc = |
2575 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2576 | unsigned int reg = mc->reg; |
2577 | unsigned int shift = mc->shift; | |
4eaa9819 | 2578 | int max = mc->max; |
815ecf8d | 2579 | unsigned int mask = (1 << fls(max)) - 1; |
da602ab8 BT |
2580 | unsigned int invert = mc->invert; |
2581 | ||
2582 | if (snd_soc_volsw_is_stereo(mc)) | |
2583 | dev_warn(widget->dapm->dev, | |
2584 | "Control '%s' is stereo, which is not supported\n", | |
2585 | kcontrol->id.name); | |
2b97eabc | 2586 | |
2b97eabc RP |
2587 | ucontrol->value.integer.value[0] = |
2588 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
da602ab8 | 2589 | if (invert) |
2b97eabc | 2590 | ucontrol->value.integer.value[0] = |
a7a4ac86 | 2591 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2592 | |
2593 | return 0; | |
2594 | } | |
2595 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2596 | ||
2597 | /** | |
2598 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2599 | * @kcontrol: mixer control | |
ac11a2b3 | 2600 | * @ucontrol: control element information |
2b97eabc RP |
2601 | * |
2602 | * Callback to set the value of a dapm mixer control. | |
2603 | * | |
2604 | * Returns 0 for success. | |
2605 | */ | |
2606 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2607 | struct snd_ctl_elem_value *ucontrol) | |
2608 | { | |
fafd2176 SW |
2609 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2610 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2611 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2612 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2613 | struct soc_mixer_control *mc = |
2614 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2615 | unsigned int reg = mc->reg; |
2616 | unsigned int shift = mc->shift; | |
4eaa9819 | 2617 | int max = mc->max; |
815ecf8d JS |
2618 | unsigned int mask = (1 << fls(max)) - 1; |
2619 | unsigned int invert = mc->invert; | |
e9cf7049 | 2620 | unsigned int val; |
97404f2e MB |
2621 | int connect, change; |
2622 | struct snd_soc_dapm_update update; | |
fafd2176 | 2623 | int wi; |
2b97eabc | 2624 | |
da602ab8 BT |
2625 | if (snd_soc_volsw_is_stereo(mc)) |
2626 | dev_warn(widget->dapm->dev, | |
2627 | "Control '%s' is stereo, which is not supported\n", | |
2628 | kcontrol->id.name); | |
2629 | ||
2b97eabc | 2630 | val = (ucontrol->value.integer.value[0] & mask); |
8a720718 | 2631 | connect = !!val; |
2b97eabc RP |
2632 | |
2633 | if (invert) | |
a7a4ac86 | 2634 | val = max - val; |
e9cf7049 | 2635 | mask = mask << shift; |
2b97eabc | 2636 | val = val << shift; |
2b97eabc | 2637 | |
3cd04343 | 2638 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2639 | |
e9cf7049 | 2640 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2641 | if (change) { |
fafd2176 SW |
2642 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2643 | widget = wlist->widgets[wi]; | |
283375ce | 2644 | |
fafd2176 | 2645 | widget->value = val; |
97404f2e | 2646 | |
fafd2176 SW |
2647 | update.kcontrol = kcontrol; |
2648 | update.widget = widget; | |
2649 | update.reg = reg; | |
2650 | update.mask = mask; | |
2651 | update.val = val; | |
2652 | widget->dapm->update = &update; | |
97404f2e | 2653 | |
4edbb345 | 2654 | soc_dapm_mixer_update_power(widget, kcontrol, connect); |
fafd2176 SW |
2655 | |
2656 | widget->dapm->update = NULL; | |
2657 | } | |
283375ce MB |
2658 | } |
2659 | ||
a73fb2df | 2660 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2661 | return 0; |
2b97eabc RP |
2662 | } |
2663 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2664 | ||
2665 | /** | |
2666 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2667 | * @kcontrol: mixer control | |
ac11a2b3 | 2668 | * @ucontrol: control element information |
2b97eabc RP |
2669 | * |
2670 | * Callback to get the value of a dapm enumerated double mixer control. | |
2671 | * | |
2672 | * Returns 0 for success. | |
2673 | */ | |
2674 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2675 | struct snd_ctl_elem_value *ucontrol) | |
2676 | { | |
fafd2176 SW |
2677 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2678 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2679 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2680 | unsigned int val, bitmask; |
2b97eabc | 2681 | |
f8ba0b7b | 2682 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
2683 | ; |
2684 | val = snd_soc_read(widget->codec, e->reg); | |
2685 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
2686 | if (e->shift_l != e->shift_r) | |
2687 | ucontrol->value.enumerated.item[1] = | |
2688 | (val >> e->shift_r) & (bitmask - 1); | |
2689 | ||
2690 | return 0; | |
2691 | } | |
2692 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2693 | ||
2694 | /** | |
2695 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2696 | * @kcontrol: mixer control | |
ac11a2b3 | 2697 | * @ucontrol: control element information |
2b97eabc RP |
2698 | * |
2699 | * Callback to set the value of a dapm enumerated double mixer control. | |
2700 | * | |
2701 | * Returns 0 for success. | |
2702 | */ | |
2703 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2704 | struct snd_ctl_elem_value *ucontrol) | |
2705 | { | |
fafd2176 SW |
2706 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2707 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2708 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2709 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2710 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2711 | unsigned int val, mux, change; |
46f5822f | 2712 | unsigned int mask, bitmask; |
97404f2e | 2713 | struct snd_soc_dapm_update update; |
fafd2176 | 2714 | int wi; |
2b97eabc | 2715 | |
f8ba0b7b | 2716 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 2717 | ; |
f8ba0b7b | 2718 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2719 | return -EINVAL; |
2720 | mux = ucontrol->value.enumerated.item[0]; | |
2721 | val = mux << e->shift_l; | |
2722 | mask = (bitmask - 1) << e->shift_l; | |
2723 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2724 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2725 | return -EINVAL; |
2726 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2727 | mask |= (bitmask - 1) << e->shift_r; | |
2728 | } | |
2729 | ||
3cd04343 | 2730 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2731 | |
3a65577d | 2732 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2733 | if (change) { |
2734 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2735 | widget = wlist->widgets[wi]; | |
2736 | ||
2737 | widget->value = val; | |
1642e3d4 | 2738 | |
fafd2176 SW |
2739 | update.kcontrol = kcontrol; |
2740 | update.widget = widget; | |
2741 | update.reg = e->reg; | |
2742 | update.mask = mask; | |
2743 | update.val = val; | |
2744 | widget->dapm->update = &update; | |
1642e3d4 | 2745 | |
4edbb345 | 2746 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1642e3d4 | 2747 | |
fafd2176 SW |
2748 | widget->dapm->update = NULL; |
2749 | } | |
2750 | } | |
2b97eabc | 2751 | |
a73fb2df | 2752 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2753 | return change; |
2b97eabc RP |
2754 | } |
2755 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2756 | ||
d2b247a8 MB |
2757 | /** |
2758 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2759 | * @kcontrol: mixer control | |
2760 | * @ucontrol: control element information | |
2761 | * | |
2762 | * Returns 0 for success. | |
2763 | */ | |
2764 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2765 | struct snd_ctl_elem_value *ucontrol) | |
2766 | { | |
fafd2176 SW |
2767 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2768 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2769 | |
2770 | ucontrol->value.enumerated.item[0] = widget->value; | |
2771 | ||
2772 | return 0; | |
2773 | } | |
2774 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2775 | ||
2776 | /** | |
2777 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2778 | * @kcontrol: mixer control | |
2779 | * @ucontrol: control element information | |
2780 | * | |
2781 | * Returns 0 for success. | |
2782 | */ | |
2783 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2784 | struct snd_ctl_elem_value *ucontrol) | |
2785 | { | |
fafd2176 SW |
2786 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2787 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2788 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2789 | struct snd_soc_card *card = codec->card; |
d2b247a8 MB |
2790 | struct soc_enum *e = |
2791 | (struct soc_enum *)kcontrol->private_value; | |
2792 | int change; | |
2793 | int ret = 0; | |
fafd2176 | 2794 | int wi; |
d2b247a8 MB |
2795 | |
2796 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2797 | return -EINVAL; | |
2798 | ||
3cd04343 | 2799 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 MB |
2800 | |
2801 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2802 | if (change) { |
2803 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2804 | widget = wlist->widgets[wi]; | |
2805 | ||
2806 | widget->value = ucontrol->value.enumerated.item[0]; | |
2807 | ||
4edbb345 | 2808 | soc_dapm_mux_update_power(widget, kcontrol, widget->value, e); |
fafd2176 SW |
2809 | } |
2810 | } | |
d2b247a8 | 2811 | |
a73fb2df | 2812 | mutex_unlock(&card->dapm_mutex); |
d2b247a8 MB |
2813 | return ret; |
2814 | } | |
2815 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2816 | ||
2e72f8e3 PU |
2817 | /** |
2818 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2819 | * callback | |
2820 | * @kcontrol: mixer control | |
2821 | * @ucontrol: control element information | |
2822 | * | |
2823 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2824 | * | |
2825 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2826 | * used for handling bitfield coded enumeration for example. | |
2827 | * | |
2828 | * Returns 0 for success. | |
2829 | */ | |
2830 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2831 | struct snd_ctl_elem_value *ucontrol) | |
2832 | { | |
fafd2176 SW |
2833 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2834 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2835 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2836 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2837 | |
2838 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2839 | val = (reg_val >> e->shift_l) & e->mask; | |
2840 | for (mux = 0; mux < e->max; mux++) { | |
2841 | if (val == e->values[mux]) | |
2842 | break; | |
2843 | } | |
2844 | ucontrol->value.enumerated.item[0] = mux; | |
2845 | if (e->shift_l != e->shift_r) { | |
2846 | val = (reg_val >> e->shift_r) & e->mask; | |
2847 | for (mux = 0; mux < e->max; mux++) { | |
2848 | if (val == e->values[mux]) | |
2849 | break; | |
2850 | } | |
2851 | ucontrol->value.enumerated.item[1] = mux; | |
2852 | } | |
2853 | ||
2854 | return 0; | |
2855 | } | |
2856 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2857 | ||
2858 | /** | |
2859 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2860 | * callback | |
2861 | * @kcontrol: mixer control | |
2862 | * @ucontrol: control element information | |
2863 | * | |
2864 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2865 | * | |
2866 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2867 | * used for handling bitfield coded enumeration for example. | |
2868 | * | |
2869 | * Returns 0 for success. | |
2870 | */ | |
2871 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2872 | struct snd_ctl_elem_value *ucontrol) | |
2873 | { | |
fafd2176 SW |
2874 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2875 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2876 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2877 | struct snd_soc_card *card = codec->card; |
74155556 | 2878 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2879 | unsigned int val, mux, change; |
46f5822f | 2880 | unsigned int mask; |
97404f2e | 2881 | struct snd_soc_dapm_update update; |
fafd2176 | 2882 | int wi; |
2e72f8e3 PU |
2883 | |
2884 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2885 | return -EINVAL; | |
2886 | mux = ucontrol->value.enumerated.item[0]; | |
2887 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2888 | mask = e->mask << e->shift_l; | |
2889 | if (e->shift_l != e->shift_r) { | |
2890 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2891 | return -EINVAL; | |
2892 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2893 | mask |= e->mask << e->shift_r; | |
2894 | } | |
2895 | ||
3cd04343 | 2896 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2897 | |
3a65577d | 2898 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2899 | if (change) { |
2900 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2901 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2902 | |
fafd2176 | 2903 | widget->value = val; |
1642e3d4 | 2904 | |
fafd2176 SW |
2905 | update.kcontrol = kcontrol; |
2906 | update.widget = widget; | |
2907 | update.reg = e->reg; | |
2908 | update.mask = mask; | |
2909 | update.val = val; | |
2910 | widget->dapm->update = &update; | |
1642e3d4 | 2911 | |
4edbb345 | 2912 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
fafd2176 SW |
2913 | |
2914 | widget->dapm->update = NULL; | |
2915 | } | |
2916 | } | |
2e72f8e3 | 2917 | |
a73fb2df | 2918 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2919 | return change; |
2e72f8e3 PU |
2920 | } |
2921 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2922 | ||
8b37dbd2 MB |
2923 | /** |
2924 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2925 | * | |
2926 | * @kcontrol: mixer control | |
2927 | * @uinfo: control element information | |
2928 | * | |
2929 | * Callback to provide information about a pin switch control. | |
2930 | */ | |
2931 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2932 | struct snd_ctl_elem_info *uinfo) | |
2933 | { | |
2934 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2935 | uinfo->count = 1; | |
2936 | uinfo->value.integer.min = 0; | |
2937 | uinfo->value.integer.max = 1; | |
2938 | ||
2939 | return 0; | |
2940 | } | |
2941 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2942 | ||
2943 | /** | |
2944 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2945 | * | |
2946 | * @kcontrol: mixer control | |
2947 | * @ucontrol: Value | |
2948 | */ | |
2949 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2950 | struct snd_ctl_elem_value *ucontrol) | |
2951 | { | |
48a8c394 | 2952 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2953 | const char *pin = (const char *)kcontrol->private_value; |
2954 | ||
3cd04343 | 2955 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2956 | |
2957 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2958 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2959 | |
a73fb2df | 2960 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
2961 | |
2962 | return 0; | |
2963 | } | |
2964 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2965 | ||
2966 | /** | |
2967 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2968 | * | |
2969 | * @kcontrol: mixer control | |
2970 | * @ucontrol: Value | |
2971 | */ | |
2972 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2973 | struct snd_ctl_elem_value *ucontrol) | |
2974 | { | |
48a8c394 | 2975 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2976 | const char *pin = (const char *)kcontrol->private_value; |
2977 | ||
3cd04343 | 2978 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2979 | |
2980 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 2981 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 2982 | else |
48a8c394 | 2983 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 2984 | |
a73fb2df | 2985 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 2986 | |
a73fb2df | 2987 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
2988 | return 0; |
2989 | } | |
2990 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2991 | ||
5ba06fc9 MB |
2992 | static struct snd_soc_dapm_widget * |
2993 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
2994 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
2995 | { |
2996 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2997 | size_t name_len; |
62ea874a | 2998 | int ret; |
2b97eabc RP |
2999 | |
3000 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 3001 | return NULL; |
2b97eabc | 3002 | |
62ea874a MB |
3003 | switch (w->id) { |
3004 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
3005 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
3006 | if (IS_ERR(w->regulator)) { | |
3007 | ret = PTR_ERR(w->regulator); | |
62ea874a MB |
3008 | dev_err(dapm->dev, "Failed to request %s: %d\n", |
3009 | w->name, ret); | |
5ba06fc9 | 3010 | return NULL; |
62ea874a MB |
3011 | } |
3012 | break; | |
d7e7eb91 | 3013 | case snd_soc_dapm_clock_supply: |
165961ef | 3014 | #ifdef CONFIG_CLKDEV_LOOKUP |
695594f1 | 3015 | w->clk = devm_clk_get(dapm->dev, w->name); |
d7e7eb91 OL |
3016 | if (IS_ERR(w->clk)) { |
3017 | ret = PTR_ERR(w->clk); | |
3018 | dev_err(dapm->dev, "Failed to request %s: %d\n", | |
3019 | w->name, ret); | |
3020 | return NULL; | |
3021 | } | |
ec02995a MB |
3022 | #else |
3023 | return NULL; | |
3024 | #endif | |
d7e7eb91 | 3025 | break; |
62ea874a MB |
3026 | default: |
3027 | break; | |
3028 | } | |
2b97eabc | 3029 | |
ead9b919 | 3030 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 3031 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
3032 | name_len += 1 + strlen(dapm->codec->name_prefix); |
3033 | w->name = kmalloc(name_len, GFP_KERNEL); | |
3034 | if (w->name == NULL) { | |
3035 | kfree(w); | |
5ba06fc9 | 3036 | return NULL; |
ead9b919 | 3037 | } |
88e8b9a8 | 3038 | if (dapm->codec && dapm->codec->name_prefix) |
888df395 | 3039 | snprintf((char *)w->name, name_len, "%s %s", |
ead9b919 JN |
3040 | dapm->codec->name_prefix, widget->name); |
3041 | else | |
888df395 | 3042 | snprintf((char *)w->name, name_len, "%s", widget->name); |
ead9b919 | 3043 | |
7ca3a18b MB |
3044 | switch (w->id) { |
3045 | case snd_soc_dapm_switch: | |
3046 | case snd_soc_dapm_mixer: | |
3047 | case snd_soc_dapm_mixer_named_ctl: | |
3048 | w->power_check = dapm_generic_check_power; | |
3049 | break; | |
3050 | case snd_soc_dapm_mux: | |
3051 | case snd_soc_dapm_virt_mux: | |
3052 | case snd_soc_dapm_value_mux: | |
3053 | w->power_check = dapm_generic_check_power; | |
3054 | break; | |
3055 | case snd_soc_dapm_adc: | |
3056 | case snd_soc_dapm_aif_out: | |
3057 | w->power_check = dapm_adc_check_power; | |
3058 | break; | |
3059 | case snd_soc_dapm_dac: | |
3060 | case snd_soc_dapm_aif_in: | |
3061 | w->power_check = dapm_dac_check_power; | |
3062 | break; | |
3063 | case snd_soc_dapm_pga: | |
3064 | case snd_soc_dapm_out_drv: | |
3065 | case snd_soc_dapm_input: | |
3066 | case snd_soc_dapm_output: | |
3067 | case snd_soc_dapm_micbias: | |
3068 | case snd_soc_dapm_spk: | |
3069 | case snd_soc_dapm_hp: | |
3070 | case snd_soc_dapm_mic: | |
3071 | case snd_soc_dapm_line: | |
c74184ed | 3072 | case snd_soc_dapm_dai_link: |
7ca3a18b MB |
3073 | w->power_check = dapm_generic_check_power; |
3074 | break; | |
3075 | case snd_soc_dapm_supply: | |
62ea874a | 3076 | case snd_soc_dapm_regulator_supply: |
d7e7eb91 | 3077 | case snd_soc_dapm_clock_supply: |
7ca3a18b MB |
3078 | w->power_check = dapm_supply_check_power; |
3079 | break; | |
888df395 MB |
3080 | case snd_soc_dapm_dai: |
3081 | w->power_check = dapm_dai_check_power; | |
3082 | break; | |
7ca3a18b MB |
3083 | default: |
3084 | w->power_check = dapm_always_on_check_power; | |
3085 | break; | |
3086 | } | |
3087 | ||
97c866de | 3088 | dapm->n_widgets++; |
ce6120cc LG |
3089 | w->dapm = dapm; |
3090 | w->codec = dapm->codec; | |
b7950641 | 3091 | w->platform = dapm->platform; |
2b97eabc RP |
3092 | INIT_LIST_HEAD(&w->sources); |
3093 | INIT_LIST_HEAD(&w->sinks); | |
3094 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 3095 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 3096 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
3097 | |
3098 | /* machine layer set ups unconnected pins and insertions */ | |
3099 | w->connected = 1; | |
5ba06fc9 | 3100 | return w; |
2b97eabc | 3101 | } |
2b97eabc | 3102 | |
4ba1327a MB |
3103 | /** |
3104 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 3105 | * @dapm: DAPM context |
4ba1327a MB |
3106 | * @widget: widget array |
3107 | * @num: number of widgets | |
3108 | * | |
3109 | * Creates new DAPM controls based upon the templates. | |
3110 | * | |
3111 | * Returns 0 for success else error. | |
3112 | */ | |
ce6120cc | 3113 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
3114 | const struct snd_soc_dapm_widget *widget, |
3115 | int num) | |
3116 | { | |
5ba06fc9 MB |
3117 | struct snd_soc_dapm_widget *w; |
3118 | int i; | |
60884c27 | 3119 | int ret = 0; |
4ba1327a | 3120 | |
a73fb2df | 3121 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 3122 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
3123 | w = snd_soc_dapm_new_control(dapm, widget); |
3124 | if (!w) { | |
f7d41ae8 | 3125 | dev_err(dapm->dev, |
5ba06fc9 MB |
3126 | "ASoC: Failed to create DAPM control %s\n", |
3127 | widget->name); | |
60884c27 DC |
3128 | ret = -ENOMEM; |
3129 | break; | |
b8b33cb5 | 3130 | } |
4ba1327a MB |
3131 | widget++; |
3132 | } | |
a73fb2df | 3133 | mutex_unlock(&dapm->card->dapm_mutex); |
60884c27 | 3134 | return ret; |
4ba1327a MB |
3135 | } |
3136 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
3137 | ||
c74184ed MB |
3138 | static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, |
3139 | struct snd_kcontrol *kcontrol, int event) | |
3140 | { | |
3141 | struct snd_soc_dapm_path *source_p, *sink_p; | |
3142 | struct snd_soc_dai *source, *sink; | |
3143 | const struct snd_soc_pcm_stream *config = w->params; | |
3144 | struct snd_pcm_substream substream; | |
9747cec2 | 3145 | struct snd_pcm_hw_params *params = NULL; |
c74184ed MB |
3146 | u64 fmt; |
3147 | int ret; | |
3148 | ||
3149 | BUG_ON(!config); | |
3150 | BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks)); | |
3151 | ||
3152 | /* We only support a single source and sink, pick the first */ | |
3153 | source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, | |
3154 | list_sink); | |
3155 | sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, | |
3156 | list_source); | |
3157 | ||
3158 | BUG_ON(!source_p || !sink_p); | |
3159 | BUG_ON(!sink_p->source || !source_p->sink); | |
3160 | BUG_ON(!source_p->source || !sink_p->sink); | |
3161 | ||
3162 | source = source_p->source->priv; | |
3163 | sink = sink_p->sink->priv; | |
3164 | ||
3165 | /* Be a little careful as we don't want to overflow the mask array */ | |
3166 | if (config->formats) { | |
3167 | fmt = ffs(config->formats) - 1; | |
3168 | } else { | |
516541a0 | 3169 | dev_warn(w->dapm->dev, "Invalid format %llx specified\n", |
c74184ed MB |
3170 | config->formats); |
3171 | fmt = 0; | |
3172 | } | |
3173 | ||
3174 | /* Currently very limited parameter selection */ | |
9747cec2 MB |
3175 | params = kzalloc(sizeof(*params), GFP_KERNEL); |
3176 | if (!params) { | |
3177 | ret = -ENOMEM; | |
3178 | goto out; | |
3179 | } | |
3180 | snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); | |
c74184ed | 3181 | |
9747cec2 | 3182 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = |
c74184ed | 3183 | config->rate_min; |
9747cec2 | 3184 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = |
c74184ed MB |
3185 | config->rate_max; |
3186 | ||
9747cec2 | 3187 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min |
c74184ed | 3188 | = config->channels_min; |
9747cec2 | 3189 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max |
c74184ed MB |
3190 | = config->channels_max; |
3191 | ||
3192 | memset(&substream, 0, sizeof(substream)); | |
3193 | ||
3194 | switch (event) { | |
3195 | case SND_SOC_DAPM_PRE_PMU: | |
3196 | if (source->driver->ops && source->driver->ops->hw_params) { | |
3197 | substream.stream = SNDRV_PCM_STREAM_CAPTURE; | |
3198 | ret = source->driver->ops->hw_params(&substream, | |
9747cec2 | 3199 | params, source); |
c74184ed MB |
3200 | if (ret != 0) { |
3201 | dev_err(source->dev, | |
3202 | "hw_params() failed: %d\n", ret); | |
9747cec2 | 3203 | goto out; |
c74184ed MB |
3204 | } |
3205 | } | |
3206 | ||
3207 | if (sink->driver->ops && sink->driver->ops->hw_params) { | |
3208 | substream.stream = SNDRV_PCM_STREAM_PLAYBACK; | |
9747cec2 | 3209 | ret = sink->driver->ops->hw_params(&substream, params, |
c74184ed MB |
3210 | sink); |
3211 | if (ret != 0) { | |
3212 | dev_err(sink->dev, | |
3213 | "hw_params() failed: %d\n", ret); | |
9747cec2 | 3214 | goto out; |
c74184ed MB |
3215 | } |
3216 | } | |
3217 | break; | |
3218 | ||
3219 | case SND_SOC_DAPM_POST_PMU: | |
3220 | ret = snd_soc_dai_digital_mute(sink, 0); | |
3221 | if (ret != 0 && ret != -ENOTSUPP) | |
3222 | dev_warn(sink->dev, "Failed to unmute: %d\n", ret); | |
9747cec2 | 3223 | ret = 0; |
c74184ed MB |
3224 | break; |
3225 | ||
3226 | case SND_SOC_DAPM_PRE_PMD: | |
3227 | ret = snd_soc_dai_digital_mute(sink, 1); | |
3228 | if (ret != 0 && ret != -ENOTSUPP) | |
3229 | dev_warn(sink->dev, "Failed to mute: %d\n", ret); | |
9747cec2 | 3230 | ret = 0; |
c74184ed MB |
3231 | break; |
3232 | ||
3233 | default: | |
3234 | BUG(); | |
3235 | return -EINVAL; | |
3236 | } | |
3237 | ||
9747cec2 MB |
3238 | out: |
3239 | kfree(params); | |
3240 | return ret; | |
c74184ed MB |
3241 | } |
3242 | ||
3243 | int snd_soc_dapm_new_pcm(struct snd_soc_card *card, | |
3244 | const struct snd_soc_pcm_stream *params, | |
3245 | struct snd_soc_dapm_widget *source, | |
3246 | struct snd_soc_dapm_widget *sink) | |
3247 | { | |
3248 | struct snd_soc_dapm_route routes[2]; | |
3249 | struct snd_soc_dapm_widget template; | |
3250 | struct snd_soc_dapm_widget *w; | |
3251 | size_t len; | |
3252 | char *link_name; | |
3253 | ||
3254 | len = strlen(source->name) + strlen(sink->name) + 2; | |
3255 | link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); | |
3256 | if (!link_name) | |
3257 | return -ENOMEM; | |
3258 | snprintf(link_name, len, "%s-%s", source->name, sink->name); | |
3259 | ||
3260 | memset(&template, 0, sizeof(template)); | |
3261 | template.reg = SND_SOC_NOPM; | |
3262 | template.id = snd_soc_dapm_dai_link; | |
3263 | template.name = link_name; | |
3264 | template.event = snd_soc_dai_link_event; | |
3265 | template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | | |
3266 | SND_SOC_DAPM_PRE_PMD; | |
3267 | ||
3268 | dev_dbg(card->dev, "adding %s widget\n", link_name); | |
3269 | ||
3270 | w = snd_soc_dapm_new_control(&card->dapm, &template); | |
3271 | if (!w) { | |
3272 | dev_err(card->dev, "Failed to create %s widget\n", | |
3273 | link_name); | |
3274 | return -ENOMEM; | |
3275 | } | |
3276 | ||
3277 | w->params = params; | |
3278 | ||
3279 | memset(&routes, 0, sizeof(routes)); | |
3280 | ||
3281 | routes[0].source = source->name; | |
3282 | routes[0].sink = link_name; | |
3283 | routes[1].source = link_name; | |
3284 | routes[1].sink = sink->name; | |
3285 | ||
3286 | return snd_soc_dapm_add_routes(&card->dapm, routes, | |
3287 | ARRAY_SIZE(routes)); | |
3288 | } | |
3289 | ||
888df395 MB |
3290 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
3291 | struct snd_soc_dai *dai) | |
2b97eabc | 3292 | { |
888df395 | 3293 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
3294 | struct snd_soc_dapm_widget *w; |
3295 | ||
888df395 MB |
3296 | WARN_ON(dapm->dev != dai->dev); |
3297 | ||
3298 | memset(&template, 0, sizeof(template)); | |
3299 | template.reg = SND_SOC_NOPM; | |
3300 | ||
3301 | if (dai->driver->playback.stream_name) { | |
3302 | template.id = snd_soc_dapm_dai; | |
3303 | template.name = dai->driver->playback.stream_name; | |
3304 | template.sname = dai->driver->playback.stream_name; | |
3305 | ||
3306 | dev_dbg(dai->dev, "adding %s widget\n", | |
3307 | template.name); | |
3308 | ||
3309 | w = snd_soc_dapm_new_control(dapm, &template); | |
3310 | if (!w) { | |
3311 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
3312 | dai->driver->playback.stream_name); | |
3313 | } | |
3314 | ||
3315 | w->priv = dai; | |
3316 | dai->playback_widget = w; | |
3317 | } | |
3318 | ||
3319 | if (dai->driver->capture.stream_name) { | |
3320 | template.id = snd_soc_dapm_dai; | |
3321 | template.name = dai->driver->capture.stream_name; | |
3322 | template.sname = dai->driver->capture.stream_name; | |
3323 | ||
3324 | dev_dbg(dai->dev, "adding %s widget\n", | |
3325 | template.name); | |
3326 | ||
3327 | w = snd_soc_dapm_new_control(dapm, &template); | |
3328 | if (!w) { | |
3329 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
3330 | dai->driver->capture.stream_name); | |
3331 | } | |
3332 | ||
3333 | w->priv = dai; | |
3334 | dai->capture_widget = w; | |
3335 | } | |
3336 | ||
3337 | return 0; | |
3338 | } | |
3339 | ||
3340 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
3341 | { | |
3342 | struct snd_soc_dapm_widget *dai_w, *w; | |
3343 | struct snd_soc_dai *dai; | |
3344 | struct snd_soc_dapm_route r; | |
3345 | ||
3346 | memset(&r, 0, sizeof(r)); | |
3347 | ||
3348 | /* For each DAI widget... */ | |
3349 | list_for_each_entry(dai_w, &card->widgets, list) { | |
3350 | if (dai_w->id != snd_soc_dapm_dai) | |
2b97eabc | 3351 | continue; |
888df395 MB |
3352 | |
3353 | dai = dai_w->priv; | |
3354 | ||
3355 | /* ...find all widgets with the same stream and link them */ | |
3356 | list_for_each_entry(w, &card->widgets, list) { | |
3357 | if (w->dapm != dai_w->dapm) | |
3358 | continue; | |
3359 | ||
3360 | if (w->id == snd_soc_dapm_dai) | |
3361 | continue; | |
3362 | ||
3363 | if (!w->sname) | |
3364 | continue; | |
3365 | ||
3366 | if (dai->driver->playback.stream_name && | |
3367 | strstr(w->sname, | |
3368 | dai->driver->playback.stream_name)) { | |
3369 | r.source = dai->playback_widget->name; | |
3370 | r.sink = w->name; | |
3371 | dev_dbg(dai->dev, "%s -> %s\n", | |
3372 | r.source, r.sink); | |
3373 | ||
3374 | snd_soc_dapm_add_route(w->dapm, &r); | |
3375 | } | |
3376 | ||
3377 | if (dai->driver->capture.stream_name && | |
3378 | strstr(w->sname, | |
3379 | dai->driver->capture.stream_name)) { | |
3380 | r.source = w->name; | |
3381 | r.sink = dai->capture_widget->name; | |
3382 | dev_dbg(dai->dev, "%s -> %s\n", | |
3383 | r.source, r.sink); | |
3384 | ||
3385 | snd_soc_dapm_add_route(w->dapm, &r); | |
2b97eabc RP |
3386 | } |
3387 | } | |
3388 | } | |
2b97eabc | 3389 | |
888df395 MB |
3390 | return 0; |
3391 | } | |
64a648c2 | 3392 | |
d9b0951b LG |
3393 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3394 | int event) | |
2b97eabc | 3395 | { |
7bd3a6f3 | 3396 | |
d9b0951b LG |
3397 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3398 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3399 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3400 | |
d9b0951b LG |
3401 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3402 | w_cpu = cpu_dai->playback_widget; | |
3403 | w_codec = codec_dai->playback_widget; | |
3404 | } else { | |
3405 | w_cpu = cpu_dai->capture_widget; | |
3406 | w_codec = codec_dai->capture_widget; | |
3407 | } | |
2b97eabc | 3408 | |
d9b0951b | 3409 | if (w_cpu) { |
fe360685 | 3410 | |
d9b0951b LG |
3411 | dapm_mark_dirty(w_cpu, "stream event"); |
3412 | ||
3413 | switch (event) { | |
3414 | case SND_SOC_DAPM_STREAM_START: | |
3415 | w_cpu->active = 1; | |
3416 | break; | |
3417 | case SND_SOC_DAPM_STREAM_STOP: | |
3418 | w_cpu->active = 0; | |
3419 | break; | |
3420 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3421 | case SND_SOC_DAPM_STREAM_RESUME: | |
3422 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3423 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3424 | break; | |
3425 | } | |
3426 | } | |
3427 | ||
3428 | if (w_codec) { | |
3429 | ||
3430 | dapm_mark_dirty(w_codec, "stream event"); | |
3431 | ||
3432 | switch (event) { | |
3433 | case SND_SOC_DAPM_STREAM_START: | |
3434 | w_codec->active = 1; | |
3435 | break; | |
3436 | case SND_SOC_DAPM_STREAM_STOP: | |
3437 | w_codec->active = 0; | |
3438 | break; | |
3439 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3440 | case SND_SOC_DAPM_STREAM_RESUME: | |
3441 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3442 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3443 | break; | |
3444 | } | |
2b97eabc | 3445 | } |
2b97eabc | 3446 | |
d9b0951b | 3447 | dapm_power_widgets(&rtd->card->dapm, event); |
ce6120cc LG |
3448 | } |
3449 | ||
3450 | /** | |
3451 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3452 | * @rtd: PCM runtime data | |
3453 | * @stream: stream name | |
3454 | * @event: stream event | |
3455 | * | |
3456 | * Sends a stream event to the dapm core. The core then makes any | |
3457 | * necessary widget power changes. | |
3458 | * | |
3459 | * Returns 0 for success else error. | |
3460 | */ | |
d9b0951b LG |
3461 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3462 | int event) | |
ce6120cc | 3463 | { |
a73fb2df | 3464 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3465 | |
3cd04343 | 3466 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3467 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3468 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3469 | } |
2b97eabc RP |
3470 | |
3471 | /** | |
a5302181 | 3472 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3473 | * @dapm: DAPM context |
a5302181 | 3474 | * @pin: pin name |
2b97eabc | 3475 | * |
74b8f955 | 3476 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3477 | * a valid audio route and active audio stream. |
3478 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3479 | * do any widget power switching. | |
2b97eabc | 3480 | */ |
ce6120cc | 3481 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3482 | { |
ce6120cc | 3483 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3484 | } |
3485 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3486 | |
da34183e MB |
3487 | /** |
3488 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3489 | * @dapm: DAPM context |
da34183e MB |
3490 | * @pin: pin name |
3491 | * | |
3492 | * Enables input/output pin regardless of any other state. This is | |
3493 | * intended for use with microphone bias supplies used in microphone | |
3494 | * jack detection. | |
3495 | * | |
3496 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3497 | * do any widget power switching. | |
3498 | */ | |
ce6120cc LG |
3499 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3500 | const char *pin) | |
da34183e | 3501 | { |
91a5fca4 | 3502 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3503 | |
91a5fca4 LPC |
3504 | if (!w) { |
3505 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3506 | return -EINVAL; | |
0d86733c MB |
3507 | } |
3508 | ||
91a5fca4 LPC |
3509 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
3510 | w->connected = 1; | |
3511 | w->force = 1; | |
75c1f891 | 3512 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3513 | |
91a5fca4 | 3514 | return 0; |
da34183e MB |
3515 | } |
3516 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3517 | ||
a5302181 LG |
3518 | /** |
3519 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3520 | * @dapm: DAPM context |
a5302181 LG |
3521 | * @pin: pin name |
3522 | * | |
74b8f955 | 3523 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3524 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3525 | * do any widget power switching. | |
3526 | */ | |
ce6120cc LG |
3527 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3528 | const char *pin) | |
a5302181 | 3529 | { |
ce6120cc | 3530 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3531 | } |
a5302181 | 3532 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3533 | |
5817b52a MB |
3534 | /** |
3535 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3536 | * @dapm: DAPM context |
5817b52a MB |
3537 | * @pin: pin name |
3538 | * | |
3539 | * Marks the specified pin as being not connected, disabling it along | |
3540 | * any parent or child widgets. At present this is identical to | |
3541 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3542 | * additional things such as disabling controls which only affect | |
3543 | * paths through the pin. | |
3544 | * | |
3545 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3546 | * do any widget power switching. | |
3547 | */ | |
ce6120cc | 3548 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3549 | { |
ce6120cc | 3550 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3551 | } |
3552 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3553 | ||
eeec12bf | 3554 | /** |
a5302181 | 3555 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3556 | * @dapm: DAPM context |
a5302181 | 3557 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3558 | * |
a5302181 | 3559 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3560 | * |
a5302181 | 3561 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3562 | */ |
ce6120cc LG |
3563 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3564 | const char *pin) | |
eeec12bf | 3565 | { |
91a5fca4 | 3566 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3567 | |
91a5fca4 LPC |
3568 | if (w) |
3569 | return w->connected; | |
a68b38ad | 3570 | |
eeec12bf GG |
3571 | return 0; |
3572 | } | |
a5302181 | 3573 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3574 | |
1547aba9 MB |
3575 | /** |
3576 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3577 | * @dapm: DAPM context |
1547aba9 MB |
3578 | * @pin: audio signal pin endpoint (or start point) |
3579 | * | |
3580 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3581 | * system is disabled a path between two endpoints flagged as ignoring | |
3582 | * suspend will not be disabled. The path must already be enabled via | |
3583 | * normal means at suspend time, it will not be turned on if it was not | |
3584 | * already enabled. | |
3585 | */ | |
ce6120cc LG |
3586 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3587 | const char *pin) | |
1547aba9 | 3588 | { |
91a5fca4 | 3589 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3590 | |
91a5fca4 LPC |
3591 | if (!w) { |
3592 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3593 | return -EINVAL; | |
1547aba9 MB |
3594 | } |
3595 | ||
91a5fca4 LPC |
3596 | w->ignore_suspend = 1; |
3597 | ||
3598 | return 0; | |
1547aba9 MB |
3599 | } |
3600 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3601 | ||
1633281b SW |
3602 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3603 | struct snd_soc_dapm_widget *w) | |
3604 | { | |
3605 | struct snd_soc_dapm_path *p; | |
3606 | ||
3607 | list_for_each_entry(p, &card->paths, list) { | |
3608 | if ((p->source == w) || (p->sink == w)) { | |
3609 | dev_dbg(card->dev, | |
3610 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3611 | p->source->name, p->source->id, p->source->dapm, | |
3612 | p->sink->name, p->sink->id, p->sink->dapm); | |
3613 | ||
3614 | /* Connected to something other than the codec */ | |
3615 | if (p->source->dapm != p->sink->dapm) | |
3616 | return true; | |
3617 | /* | |
3618 | * Loopback connection from codec external pin to | |
3619 | * codec external pin | |
3620 | */ | |
3621 | if (p->sink->id == snd_soc_dapm_input) { | |
3622 | switch (p->source->id) { | |
3623 | case snd_soc_dapm_output: | |
3624 | case snd_soc_dapm_micbias: | |
3625 | return true; | |
3626 | default: | |
3627 | break; | |
3628 | } | |
3629 | } | |
3630 | } | |
3631 | } | |
3632 | ||
3633 | return false; | |
3634 | } | |
3635 | ||
3636 | /** | |
3637 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3638 | * @codec: The codec whose pins should be processed | |
3639 | * | |
3640 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3641 | * which are unused. Pins are used if they are connected externally to the | |
3642 | * codec, whether that be to some other device, or a loop-back connection to | |
3643 | * the codec itself. | |
3644 | */ | |
3645 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3646 | { | |
3647 | struct snd_soc_card *card = codec->card; | |
3648 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3649 | struct snd_soc_dapm_widget *w; | |
3650 | ||
a094b80b | 3651 | dev_dbg(codec->dev, "Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3652 | &card->dapm, &codec->dapm); |
3653 | ||
3654 | list_for_each_entry(w, &card->widgets, list) { | |
3655 | if (w->dapm != dapm) | |
3656 | continue; | |
3657 | switch (w->id) { | |
3658 | case snd_soc_dapm_input: | |
3659 | case snd_soc_dapm_output: | |
3660 | case snd_soc_dapm_micbias: | |
a094b80b | 3661 | dev_dbg(codec->dev, "Auto NC: Checking widget %s\n", |
1633281b SW |
3662 | w->name); |
3663 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3664 | dev_dbg(codec->dev, |
1633281b SW |
3665 | "... Not in map; disabling\n"); |
3666 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3667 | } | |
3668 | break; | |
3669 | default: | |
3670 | break; | |
3671 | } | |
3672 | } | |
3673 | } | |
3674 | ||
2b97eabc RP |
3675 | /** |
3676 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3677 | * @dapm: DAPM context |
2b97eabc RP |
3678 | * |
3679 | * Free all dapm widgets and resources. | |
3680 | */ | |
ce6120cc | 3681 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3682 | { |
ce6120cc | 3683 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3684 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3685 | dapm_free_widgets(dapm); |
7be31be8 | 3686 | list_del(&dapm->list); |
2b97eabc RP |
3687 | } |
3688 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3689 | ||
ce6120cc | 3690 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3691 | { |
01005a72 | 3692 | struct snd_soc_card *card = dapm->card; |
51737470 MB |
3693 | struct snd_soc_dapm_widget *w; |
3694 | LIST_HEAD(down_list); | |
3695 | int powerdown = 0; | |
3696 | ||
01005a72 LG |
3697 | mutex_lock(&card->dapm_mutex); |
3698 | ||
97c866de JN |
3699 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3700 | if (w->dapm != dapm) | |
3701 | continue; | |
51737470 | 3702 | if (w->power) { |
828a842f | 3703 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3704 | w->power = 0; |
51737470 MB |
3705 | powerdown = 1; |
3706 | } | |
3707 | } | |
3708 | ||
3709 | /* If there were no widgets to power down we're already in | |
3710 | * standby. | |
3711 | */ | |
3712 | if (powerdown) { | |
7679e42e MB |
3713 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3714 | snd_soc_dapm_set_bias_level(dapm, | |
3715 | SND_SOC_BIAS_PREPARE); | |
828a842f | 3716 | dapm_seq_run(dapm, &down_list, 0, false); |
7679e42e MB |
3717 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3718 | snd_soc_dapm_set_bias_level(dapm, | |
3719 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3720 | } |
01005a72 LG |
3721 | |
3722 | mutex_unlock(&card->dapm_mutex); | |
f0fba2ad LG |
3723 | } |
3724 | ||
3725 | /* | |
3726 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3727 | */ | |
3728 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3729 | { | |
3730 | struct snd_soc_codec *codec; | |
3731 | ||
ce6120cc LG |
3732 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
3733 | soc_dapm_shutdown_codec(&codec->dapm); | |
7679e42e MB |
3734 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3735 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3736 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3737 | } |
51737470 MB |
3738 | } |
3739 | ||
2b97eabc | 3740 | /* Module information */ |
d331124d | 3741 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3742 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3743 | MODULE_LICENSE("GPL"); |