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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> |
5a0e3ad6 | 38 | #include <linux/slab.h> |
2b97eabc RP |
39 | #include <sound/core.h> |
40 | #include <sound/pcm.h> | |
41 | #include <sound/pcm_params.h> | |
ce6120cc | 42 | #include <sound/soc.h> |
2b97eabc RP |
43 | #include <sound/initval.h> |
44 | ||
84e90930 MB |
45 | #include <trace/events/asoc.h> |
46 | ||
de02d078 MB |
47 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
48 | ||
2b97eabc RP |
49 | /* dapm power sequences - make this per codec in the future */ |
50 | static int dapm_up_seq[] = { | |
38357ab2 MB |
51 | [snd_soc_dapm_pre] = 0, |
52 | [snd_soc_dapm_supply] = 1, | |
62ea874a | 53 | [snd_soc_dapm_regulator_supply] = 1, |
38357ab2 | 54 | [snd_soc_dapm_micbias] = 2, |
888df395 | 55 | [snd_soc_dapm_dai] = 3, |
010ff262 MB |
56 | [snd_soc_dapm_aif_in] = 3, |
57 | [snd_soc_dapm_aif_out] = 3, | |
58 | [snd_soc_dapm_mic] = 4, | |
59 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 60 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
61 | [snd_soc_dapm_value_mux] = 5, |
62 | [snd_soc_dapm_dac] = 6, | |
63 | [snd_soc_dapm_mixer] = 7, | |
64 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
65 | [snd_soc_dapm_pga] = 8, | |
66 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 67 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
68 | [snd_soc_dapm_hp] = 10, |
69 | [snd_soc_dapm_spk] = 10, | |
70 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 71 | }; |
ca9c1aae | 72 | |
2b97eabc | 73 | static int dapm_down_seq[] = { |
38357ab2 MB |
74 | [snd_soc_dapm_pre] = 0, |
75 | [snd_soc_dapm_adc] = 1, | |
76 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 77 | [snd_soc_dapm_spk] = 2, |
d88429a6 | 78 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
79 | [snd_soc_dapm_pga] = 4, |
80 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
81 | [snd_soc_dapm_mixer] = 5, |
82 | [snd_soc_dapm_dac] = 6, | |
83 | [snd_soc_dapm_mic] = 7, | |
84 | [snd_soc_dapm_micbias] = 8, | |
85 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 86 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 87 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
88 | [snd_soc_dapm_aif_in] = 10, |
89 | [snd_soc_dapm_aif_out] = 10, | |
888df395 | 90 | [snd_soc_dapm_dai] = 10, |
62ea874a | 91 | [snd_soc_dapm_regulator_supply] = 11, |
010ff262 MB |
92 | [snd_soc_dapm_supply] = 11, |
93 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
94 | }; |
95 | ||
12ef193d | 96 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
97 | { |
98 | if (pop_time) | |
99 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
100 | } | |
101 | ||
fd8d3bc0 | 102 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
103 | { |
104 | va_list args; | |
fd8d3bc0 | 105 | char *buf; |
15e4c72f | 106 | |
fd8d3bc0 JN |
107 | if (!pop_time) |
108 | return; | |
15e4c72f | 109 | |
fd8d3bc0 JN |
110 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
111 | if (buf == NULL) | |
112 | return; | |
15e4c72f | 113 | |
fd8d3bc0 JN |
114 | va_start(args, fmt); |
115 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 116 | dev_info(dev, "%s", buf); |
15e4c72f | 117 | va_end(args); |
fd8d3bc0 JN |
118 | |
119 | kfree(buf); | |
15e4c72f MB |
120 | } |
121 | ||
db432b41 MB |
122 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
123 | { | |
124 | return !list_empty(&w->dirty); | |
125 | } | |
126 | ||
25c77c5f | 127 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 128 | { |
75c1f891 MB |
129 | if (!dapm_dirty_widget(w)) { |
130 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
131 | w->name, reason); | |
db432b41 | 132 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 133 | } |
db432b41 | 134 | } |
25c77c5f | 135 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 136 | |
2b97eabc | 137 | /* create a new dapm widget */ |
88cb4290 | 138 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
139 | const struct snd_soc_dapm_widget *_widget) |
140 | { | |
88cb4290 | 141 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
142 | } |
143 | ||
4805608a LG |
144 | /* get snd_card from DAPM context */ |
145 | static inline struct snd_card *dapm_get_snd_card( | |
146 | struct snd_soc_dapm_context *dapm) | |
147 | { | |
148 | if (dapm->codec) | |
149 | return dapm->codec->card->snd_card; | |
150 | else if (dapm->platform) | |
151 | return dapm->platform->card->snd_card; | |
152 | else | |
153 | BUG(); | |
154 | ||
155 | /* unreachable */ | |
156 | return NULL; | |
157 | } | |
158 | ||
159 | /* get soc_card from DAPM context */ | |
160 | static inline struct snd_soc_card *dapm_get_soc_card( | |
161 | struct snd_soc_dapm_context *dapm) | |
162 | { | |
163 | if (dapm->codec) | |
164 | return dapm->codec->card; | |
165 | else if (dapm->platform) | |
166 | return dapm->platform->card; | |
167 | else | |
168 | BUG(); | |
169 | ||
170 | /* unreachable */ | |
171 | return NULL; | |
172 | } | |
173 | ||
6c120e19 LG |
174 | static void dapm_reset(struct snd_soc_card *card) |
175 | { | |
176 | struct snd_soc_dapm_widget *w; | |
177 | ||
178 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
179 | ||
180 | list_for_each_entry(w, &card->widgets, list) { | |
181 | w->power_checked = false; | |
182 | w->inputs = -1; | |
183 | w->outputs = -1; | |
184 | } | |
185 | } | |
186 | ||
0445bdf4 LG |
187 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
188 | { | |
189 | if (w->codec) | |
190 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
191 | else if (w->platform) |
192 | return snd_soc_platform_read(w->platform, reg); | |
193 | ||
194 | dev_err(w->dapm->dev, "no valid widget read method\n"); | |
195 | return -1; | |
0445bdf4 LG |
196 | } |
197 | ||
198 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
199 | { | |
200 | if (w->codec) | |
201 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
202 | else if (w->platform) |
203 | return snd_soc_platform_write(w->platform, reg, val); | |
204 | ||
205 | dev_err(w->dapm->dev, "no valid widget write method\n"); | |
206 | return -1; | |
0445bdf4 LG |
207 | } |
208 | ||
49575fb5 LG |
209 | static inline void soc_widget_lock(struct snd_soc_dapm_widget *w) |
210 | { | |
211 | if (w->codec) | |
212 | mutex_lock(&w->codec->mutex); | |
213 | else if (w->platform) | |
214 | mutex_lock(&w->platform->mutex); | |
215 | } | |
216 | ||
217 | static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w) | |
218 | { | |
219 | if (w->codec) | |
220 | mutex_unlock(&w->codec->mutex); | |
221 | else if (w->platform) | |
222 | mutex_unlock(&w->platform->mutex); | |
223 | } | |
224 | ||
225 | static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w, | |
0445bdf4 LG |
226 | unsigned short reg, unsigned int mask, unsigned int value) |
227 | { | |
8a713da8 | 228 | bool change; |
0445bdf4 LG |
229 | unsigned int old, new; |
230 | int ret; | |
231 | ||
8a713da8 MB |
232 | if (w->codec && w->codec->using_regmap) { |
233 | ret = regmap_update_bits_check(w->codec->control_data, | |
234 | reg, mask, value, &change); | |
235 | if (ret != 0) | |
236 | return ret; | |
237 | } else { | |
49575fb5 | 238 | soc_widget_lock(w); |
8a713da8 | 239 | ret = soc_widget_read(w, reg); |
49575fb5 LG |
240 | if (ret < 0) { |
241 | soc_widget_unlock(w); | |
0445bdf4 | 242 | return ret; |
49575fb5 | 243 | } |
8a713da8 MB |
244 | |
245 | old = ret; | |
246 | new = (old & ~mask) | (value & mask); | |
247 | change = old != new; | |
248 | if (change) { | |
249 | ret = soc_widget_write(w, reg, new); | |
49575fb5 LG |
250 | if (ret < 0) { |
251 | soc_widget_unlock(w); | |
8a713da8 | 252 | return ret; |
49575fb5 | 253 | } |
8a713da8 | 254 | } |
49575fb5 | 255 | soc_widget_unlock(w); |
0445bdf4 LG |
256 | } |
257 | ||
258 | return change; | |
259 | } | |
260 | ||
452c5eaa MB |
261 | /** |
262 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 263 | * @dapm: DAPM context |
452c5eaa MB |
264 | * @level: level to configure |
265 | * | |
266 | * Configure the bias (power) levels for the SoC audio device. | |
267 | * | |
268 | * Returns 0 for success else error. | |
269 | */ | |
ed5a4c47 | 270 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 271 | enum snd_soc_bias_level level) |
452c5eaa | 272 | { |
ed5a4c47 | 273 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
274 | int ret = 0; |
275 | ||
84e90930 MB |
276 | trace_snd_soc_bias_level_start(card, level); |
277 | ||
f0fba2ad | 278 | if (card && card->set_bias_level) |
d4c6005f | 279 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
280 | if (ret != 0) |
281 | goto out; | |
282 | ||
cc4c670a MB |
283 | if (dapm->codec) { |
284 | if (dapm->codec->driver->set_bias_level) | |
285 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
286 | level); | |
287 | else | |
288 | dapm->bias_level = level; | |
289 | } | |
171ec6b0 MB |
290 | if (ret != 0) |
291 | goto out; | |
292 | ||
293 | if (card && card->set_bias_level_post) | |
d4c6005f | 294 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 295 | out: |
84e90930 MB |
296 | trace_snd_soc_bias_level_done(card, level); |
297 | ||
452c5eaa MB |
298 | return ret; |
299 | } | |
300 | ||
2b97eabc RP |
301 | /* set up initial codec paths */ |
302 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
303 | struct snd_soc_dapm_path *p, int i) | |
304 | { | |
305 | switch (w->id) { | |
306 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
307 | case snd_soc_dapm_mixer: |
308 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 309 | int val; |
4eaa9819 | 310 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 311 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
312 | unsigned int reg = mc->reg; |
313 | unsigned int shift = mc->shift; | |
4eaa9819 | 314 | int max = mc->max; |
815ecf8d JS |
315 | unsigned int mask = (1 << fls(max)) - 1; |
316 | unsigned int invert = mc->invert; | |
2b97eabc | 317 | |
0445bdf4 | 318 | val = soc_widget_read(w, reg); |
2b97eabc RP |
319 | val = (val >> shift) & mask; |
320 | ||
321 | if ((invert && !val) || (!invert && val)) | |
322 | p->connect = 1; | |
323 | else | |
324 | p->connect = 0; | |
325 | } | |
326 | break; | |
327 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
328 | struct soc_enum *e = (struct soc_enum *) |
329 | w->kcontrol_news[i].private_value; | |
2b97eabc RP |
330 | int val, item, bitmask; |
331 | ||
f8ba0b7b | 332 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
88d96086 | 333 | ; |
0445bdf4 | 334 | val = soc_widget_read(w, e->reg); |
2b97eabc RP |
335 | item = (val >> e->shift_l) & (bitmask - 1); |
336 | ||
337 | p->connect = 0; | |
f8ba0b7b | 338 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
339 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
340 | p->connect = 1; | |
341 | } | |
342 | } | |
343 | break; | |
24ff33ac | 344 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
345 | struct soc_enum *e = (struct soc_enum *) |
346 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
347 | |
348 | p->connect = 0; | |
349 | /* since a virtual mux has no backing registers to | |
350 | * decide which path to connect, it will try to match | |
351 | * with the first enumeration. This is to ensure | |
352 | * that the default mux choice (the first) will be | |
353 | * correctly powered up during initialization. | |
354 | */ | |
355 | if (!strcmp(p->name, e->texts[0])) | |
356 | p->connect = 1; | |
357 | } | |
358 | break; | |
2e72f8e3 | 359 | case snd_soc_dapm_value_mux: { |
74155556 | 360 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 361 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
362 | int val, item; |
363 | ||
0445bdf4 | 364 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
365 | val = (val >> e->shift_l) & e->mask; |
366 | for (item = 0; item < e->max; item++) { | |
367 | if (val == e->values[item]) | |
368 | break; | |
369 | } | |
370 | ||
371 | p->connect = 0; | |
372 | for (i = 0; i < e->max; i++) { | |
373 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
374 | p->connect = 1; | |
375 | } | |
376 | } | |
377 | break; | |
56563100 | 378 | /* does not affect routing - always connected */ |
2b97eabc | 379 | case snd_soc_dapm_pga: |
d88429a6 | 380 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
381 | case snd_soc_dapm_output: |
382 | case snd_soc_dapm_adc: | |
383 | case snd_soc_dapm_input: | |
1ab97c8c | 384 | case snd_soc_dapm_siggen: |
2b97eabc RP |
385 | case snd_soc_dapm_dac: |
386 | case snd_soc_dapm_micbias: | |
387 | case snd_soc_dapm_vmid: | |
246d0a17 | 388 | case snd_soc_dapm_supply: |
62ea874a | 389 | case snd_soc_dapm_regulator_supply: |
010ff262 MB |
390 | case snd_soc_dapm_aif_in: |
391 | case snd_soc_dapm_aif_out: | |
888df395 | 392 | case snd_soc_dapm_dai: |
2b97eabc RP |
393 | case snd_soc_dapm_hp: |
394 | case snd_soc_dapm_mic: | |
395 | case snd_soc_dapm_spk: | |
396 | case snd_soc_dapm_line: | |
56563100 MB |
397 | p->connect = 1; |
398 | break; | |
399 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
400 | case snd_soc_dapm_pre: |
401 | case snd_soc_dapm_post: | |
402 | p->connect = 0; | |
403 | break; | |
404 | } | |
405 | } | |
406 | ||
74b8f955 | 407 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 408 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
409 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
410 | struct snd_soc_dapm_path *path, const char *control_name, | |
411 | const struct snd_kcontrol_new *kcontrol) | |
412 | { | |
413 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
414 | int i; | |
415 | ||
f8ba0b7b | 416 | for (i = 0; i < e->max; i++) { |
2b97eabc | 417 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 418 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
419 | list_add(&path->list_sink, &dest->sources); |
420 | list_add(&path->list_source, &src->sinks); | |
421 | path->name = (char*)e->texts[i]; | |
422 | dapm_set_path_status(dest, path, 0); | |
423 | return 0; | |
424 | } | |
425 | } | |
426 | ||
427 | return -ENODEV; | |
428 | } | |
429 | ||
74b8f955 | 430 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 431 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
432 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
433 | struct snd_soc_dapm_path *path, const char *control_name) | |
434 | { | |
435 | int i; | |
436 | ||
437 | /* search for mixer kcontrol */ | |
438 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 439 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 440 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
441 | list_add(&path->list_sink, &dest->sources); |
442 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 443 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
444 | dapm_set_path_status(dest, path, i); |
445 | return 0; | |
446 | } | |
447 | } | |
448 | return -ENODEV; | |
449 | } | |
450 | ||
af46800b | 451 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 452 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
453 | const struct snd_kcontrol_new *kcontrol_new, |
454 | struct snd_kcontrol **kcontrol) | |
455 | { | |
456 | struct snd_soc_dapm_widget *w; | |
457 | int i; | |
458 | ||
459 | *kcontrol = NULL; | |
460 | ||
461 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
462 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
463 | continue; | |
af46800b SW |
464 | for (i = 0; i < w->num_kcontrols; i++) { |
465 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
466 | if (w->kcontrols) | |
467 | *kcontrol = w->kcontrols[i]; | |
468 | return 1; | |
469 | } | |
470 | } | |
471 | } | |
472 | ||
473 | return 0; | |
474 | } | |
475 | ||
2b97eabc | 476 | /* create new dapm mixer control */ |
4b80b8c2 | 477 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
2b97eabc | 478 | { |
4b80b8c2 | 479 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc | 480 | int i, ret = 0; |
3e5ff4df | 481 | size_t name_len, prefix_len; |
2b97eabc | 482 | struct snd_soc_dapm_path *path; |
12ea2c78 | 483 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 484 | const char *prefix; |
fafd2176 SW |
485 | struct snd_soc_dapm_widget_list *wlist; |
486 | size_t wlistsize; | |
efb7ac3f MB |
487 | |
488 | if (dapm->codec) | |
489 | prefix = dapm->codec->name_prefix; | |
490 | else | |
491 | prefix = NULL; | |
2b97eabc | 492 | |
3e5ff4df MB |
493 | if (prefix) |
494 | prefix_len = strlen(prefix) + 1; | |
495 | else | |
496 | prefix_len = 0; | |
497 | ||
2b97eabc RP |
498 | /* add kcontrol */ |
499 | for (i = 0; i < w->num_kcontrols; i++) { | |
500 | ||
501 | /* match name */ | |
502 | list_for_each_entry(path, &w->sources, list_sink) { | |
503 | ||
504 | /* mixer/mux paths name must match control name */ | |
82cfecdc | 505 | if (path->name != (char *)w->kcontrol_news[i].name) |
2b97eabc RP |
506 | continue; |
507 | ||
82cd8764 LPC |
508 | if (w->kcontrols[i]) { |
509 | path->kcontrol = w->kcontrols[i]; | |
510 | continue; | |
511 | } | |
512 | ||
fafd2176 SW |
513 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
514 | sizeof(struct snd_soc_dapm_widget *), | |
515 | wlist = kzalloc(wlistsize, GFP_KERNEL); | |
516 | if (wlist == NULL) { | |
517 | dev_err(dapm->dev, | |
518 | "asoc: can't allocate widget list for %s\n", | |
519 | w->name); | |
520 | return -ENOMEM; | |
521 | } | |
522 | wlist->num_widgets = 1; | |
523 | wlist->widgets[0] = w; | |
524 | ||
ca9c1aae IM |
525 | /* add dapm control with long name. |
526 | * for dapm_mixer this is the concatenation of the | |
527 | * mixer and kcontrol name. | |
528 | * for dapm_mixer_named_ctl this is simply the | |
529 | * kcontrol name. | |
530 | */ | |
82cfecdc | 531 | name_len = strlen(w->kcontrol_news[i].name) + 1; |
07495f3e | 532 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
533 | name_len += 1 + strlen(w->name); |
534 | ||
219b93f5 | 535 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 536 | |
fafd2176 SW |
537 | if (path->long_name == NULL) { |
538 | kfree(wlist); | |
2b97eabc | 539 | return -ENOMEM; |
fafd2176 | 540 | } |
2b97eabc | 541 | |
ca9c1aae | 542 | switch (w->id) { |
ca9c1aae | 543 | default: |
3e5ff4df MB |
544 | /* The control will get a prefix from |
545 | * the control creation process but | |
546 | * we're also using the same prefix | |
547 | * for widgets so cut the prefix off | |
548 | * the front of the widget name. | |
549 | */ | |
888df395 MB |
550 | snprintf((char *)path->long_name, name_len, |
551 | "%s %s", w->name + prefix_len, | |
82cfecdc | 552 | w->kcontrol_news[i].name); |
07495f3e | 553 | break; |
ca9c1aae | 554 | case snd_soc_dapm_mixer_named_ctl: |
888df395 MB |
555 | snprintf((char *)path->long_name, name_len, |
556 | "%s", w->kcontrol_news[i].name); | |
07495f3e | 557 | break; |
ca9c1aae IM |
558 | } |
559 | ||
888df395 | 560 | ((char *)path->long_name)[name_len - 1] = '\0'; |
219b93f5 | 561 | |
fafd2176 SW |
562 | path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], |
563 | wlist, path->long_name, | |
564 | prefix); | |
ce6120cc | 565 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 566 | if (ret < 0) { |
f7d41ae8 JN |
567 | dev_err(dapm->dev, |
568 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
569 | path->long_name, ret); | |
fafd2176 | 570 | kfree(wlist); |
2b97eabc RP |
571 | kfree(path->long_name); |
572 | path->long_name = NULL; | |
573 | return ret; | |
574 | } | |
fad59888 | 575 | w->kcontrols[i] = path->kcontrol; |
2b97eabc RP |
576 | } |
577 | } | |
578 | return ret; | |
579 | } | |
580 | ||
581 | /* create new dapm mux control */ | |
4b80b8c2 | 582 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 583 | { |
4b80b8c2 | 584 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc RP |
585 | struct snd_soc_dapm_path *path = NULL; |
586 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 587 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 588 | const char *prefix; |
3e5ff4df | 589 | size_t prefix_len; |
af46800b | 590 | int ret; |
fafd2176 | 591 | struct snd_soc_dapm_widget_list *wlist; |
af46800b | 592 | int shared, wlistentries; |
fafd2176 | 593 | size_t wlistsize; |
888df395 | 594 | const char *name; |
2b97eabc | 595 | |
af46800b SW |
596 | if (w->num_kcontrols != 1) { |
597 | dev_err(dapm->dev, | |
598 | "asoc: mux %s has incorrect number of controls\n", | |
599 | w->name); | |
2b97eabc RP |
600 | return -EINVAL; |
601 | } | |
602 | ||
1007da06 | 603 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b SW |
604 | &kcontrol); |
605 | if (kcontrol) { | |
606 | wlist = kcontrol->private_data; | |
607 | wlistentries = wlist->num_widgets + 1; | |
608 | } else { | |
609 | wlist = NULL; | |
610 | wlistentries = 1; | |
611 | } | |
fafd2176 | 612 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b SW |
613 | wlistentries * sizeof(struct snd_soc_dapm_widget *), |
614 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
fafd2176 SW |
615 | if (wlist == NULL) { |
616 | dev_err(dapm->dev, | |
617 | "asoc: can't allocate widget list for %s\n", w->name); | |
618 | return -ENOMEM; | |
619 | } | |
af46800b SW |
620 | wlist->num_widgets = wlistentries; |
621 | wlist->widgets[wlistentries - 1] = w; | |
efb7ac3f | 622 | |
af46800b SW |
623 | if (!kcontrol) { |
624 | if (dapm->codec) | |
625 | prefix = dapm->codec->name_prefix; | |
626 | else | |
627 | prefix = NULL; | |
628 | ||
629 | if (shared) { | |
630 | name = w->kcontrol_news[0].name; | |
631 | prefix_len = 0; | |
632 | } else { | |
633 | name = w->name; | |
634 | if (prefix) | |
635 | prefix_len = strlen(prefix) + 1; | |
636 | else | |
637 | prefix_len = 0; | |
638 | } | |
3e5ff4df | 639 | |
af46800b SW |
640 | /* |
641 | * The control will get a prefix from the control creation | |
642 | * process but we're also using the same prefix for widgets so | |
643 | * cut the prefix off the front of the widget name. | |
644 | */ | |
645 | kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, | |
646 | name + prefix_len, prefix); | |
647 | ret = snd_ctl_add(card, kcontrol); | |
648 | if (ret < 0) { | |
53daf208 MB |
649 | dev_err(dapm->dev, "failed to add kcontrol %s: %d\n", |
650 | w->name, ret); | |
af46800b SW |
651 | kfree(wlist); |
652 | return ret; | |
653 | } | |
654 | } | |
ce6120cc | 655 | |
af46800b | 656 | kcontrol->private_data = wlist; |
2b97eabc | 657 | |
fad59888 SW |
658 | w->kcontrols[0] = kcontrol; |
659 | ||
2b97eabc RP |
660 | list_for_each_entry(path, &w->sources, list_sink) |
661 | path->kcontrol = kcontrol; | |
662 | ||
af46800b | 663 | return 0; |
2b97eabc RP |
664 | } |
665 | ||
666 | /* create new dapm volume control */ | |
4b80b8c2 | 667 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 668 | { |
a6c65736 | 669 | if (w->num_kcontrols) |
f7d41ae8 JN |
670 | dev_err(w->dapm->dev, |
671 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 672 | |
a6c65736 | 673 | return 0; |
2b97eabc RP |
674 | } |
675 | ||
676 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 677 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
678 | { |
679 | struct snd_soc_dapm_path *p; | |
680 | ||
8ddab3f5 | 681 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
682 | p->walked = 0; |
683 | } | |
684 | ||
9949788b MB |
685 | /* We implement power down on suspend by checking the power state of |
686 | * the ALSA card - when we are suspending the ALSA state for the card | |
687 | * is set to D3. | |
688 | */ | |
689 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
690 | { | |
12ea2c78 | 691 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 692 | |
f0fba2ad | 693 | switch (level) { |
9949788b MB |
694 | case SNDRV_CTL_POWER_D3hot: |
695 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 696 | if (widget->ignore_suspend) |
f7d41ae8 JN |
697 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
698 | widget->name); | |
1547aba9 | 699 | return widget->ignore_suspend; |
9949788b MB |
700 | default: |
701 | return 1; | |
702 | } | |
703 | } | |
704 | ||
2b97eabc RP |
705 | /* |
706 | * Recursively check for a completed path to an active or physically connected | |
707 | * output widget. Returns number of complete paths. | |
708 | */ | |
709 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
710 | { | |
711 | struct snd_soc_dapm_path *path; | |
712 | int con = 0; | |
713 | ||
024dc078 MB |
714 | if (widget->outputs >= 0) |
715 | return widget->outputs; | |
716 | ||
de02d078 MB |
717 | DAPM_UPDATE_STAT(widget, path_checks); |
718 | ||
62ea874a MB |
719 | switch (widget->id) { |
720 | case snd_soc_dapm_supply: | |
721 | case snd_soc_dapm_regulator_supply: | |
246d0a17 | 722 | return 0; |
62ea874a MB |
723 | default: |
724 | break; | |
725 | } | |
246d0a17 | 726 | |
010ff262 MB |
727 | switch (widget->id) { |
728 | case snd_soc_dapm_adc: | |
729 | case snd_soc_dapm_aif_out: | |
888df395 | 730 | case snd_soc_dapm_dai: |
024dc078 MB |
731 | if (widget->active) { |
732 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
733 | return widget->outputs; | |
734 | } | |
010ff262 MB |
735 | default: |
736 | break; | |
737 | } | |
2b97eabc RP |
738 | |
739 | if (widget->connected) { | |
740 | /* connected pin ? */ | |
024dc078 MB |
741 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
742 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
743 | return widget->outputs; | |
744 | } | |
2b97eabc RP |
745 | |
746 | /* connected jack or spk ? */ | |
024dc078 MB |
747 | if (widget->id == snd_soc_dapm_hp || |
748 | widget->id == snd_soc_dapm_spk || | |
749 | (widget->id == snd_soc_dapm_line && | |
750 | !list_empty(&widget->sources))) { | |
751 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
752 | return widget->outputs; | |
753 | } | |
2b97eabc RP |
754 | } |
755 | ||
756 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
757 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
758 | ||
bf3a9e13 MB |
759 | if (path->weak) |
760 | continue; | |
761 | ||
2b97eabc RP |
762 | if (path->walked) |
763 | continue; | |
764 | ||
765 | if (path->sink && path->connect) { | |
766 | path->walked = 1; | |
767 | con += is_connected_output_ep(path->sink); | |
768 | } | |
769 | } | |
770 | ||
024dc078 MB |
771 | widget->outputs = con; |
772 | ||
2b97eabc RP |
773 | return con; |
774 | } | |
775 | ||
776 | /* | |
777 | * Recursively check for a completed path to an active or physically connected | |
778 | * input widget. Returns number of complete paths. | |
779 | */ | |
780 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
781 | { | |
782 | struct snd_soc_dapm_path *path; | |
783 | int con = 0; | |
784 | ||
024dc078 MB |
785 | if (widget->inputs >= 0) |
786 | return widget->inputs; | |
787 | ||
de02d078 MB |
788 | DAPM_UPDATE_STAT(widget, path_checks); |
789 | ||
62ea874a MB |
790 | switch (widget->id) { |
791 | case snd_soc_dapm_supply: | |
792 | case snd_soc_dapm_regulator_supply: | |
246d0a17 | 793 | return 0; |
62ea874a MB |
794 | default: |
795 | break; | |
796 | } | |
246d0a17 | 797 | |
2b97eabc | 798 | /* active stream ? */ |
010ff262 MB |
799 | switch (widget->id) { |
800 | case snd_soc_dapm_dac: | |
801 | case snd_soc_dapm_aif_in: | |
888df395 | 802 | case snd_soc_dapm_dai: |
024dc078 MB |
803 | if (widget->active) { |
804 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
805 | return widget->inputs; | |
806 | } | |
010ff262 MB |
807 | default: |
808 | break; | |
809 | } | |
2b97eabc RP |
810 | |
811 | if (widget->connected) { | |
812 | /* connected pin ? */ | |
024dc078 MB |
813 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
814 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
815 | return widget->inputs; | |
816 | } | |
2b97eabc RP |
817 | |
818 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
819 | if (widget->id == snd_soc_dapm_vmid) { |
820 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
821 | return widget->inputs; | |
822 | } | |
2b97eabc RP |
823 | |
824 | /* connected jack ? */ | |
eaeae5d9 | 825 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
826 | (widget->id == snd_soc_dapm_line && |
827 | !list_empty(&widget->sinks))) { | |
828 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
829 | return widget->inputs; | |
830 | } | |
831 | ||
1ab97c8c MB |
832 | /* signal generator */ |
833 | if (widget->id == snd_soc_dapm_siggen) { | |
834 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
835 | return widget->inputs; | |
836 | } | |
2b97eabc RP |
837 | } |
838 | ||
839 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
840 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
841 | ||
bf3a9e13 MB |
842 | if (path->weak) |
843 | continue; | |
844 | ||
2b97eabc RP |
845 | if (path->walked) |
846 | continue; | |
847 | ||
848 | if (path->source && path->connect) { | |
849 | path->walked = 1; | |
850 | con += is_connected_input_ep(path->source); | |
851 | } | |
852 | } | |
853 | ||
024dc078 MB |
854 | widget->inputs = con; |
855 | ||
2b97eabc RP |
856 | return con; |
857 | } | |
858 | ||
e2be2ccf JN |
859 | /* |
860 | * Handler for generic register modifier widget. | |
861 | */ | |
862 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
863 | struct snd_kcontrol *kcontrol, int event) | |
864 | { | |
865 | unsigned int val; | |
866 | ||
867 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
868 | val = w->on_val; | |
869 | else | |
870 | val = w->off_val; | |
871 | ||
49575fb5 | 872 | soc_widget_update_bits_locked(w, -(w->reg + 1), |
e2be2ccf JN |
873 | w->mask << w->shift, val << w->shift); |
874 | ||
875 | return 0; | |
876 | } | |
11589418 | 877 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 878 | |
62ea874a MB |
879 | /* |
880 | * Handler for regulator supply widget. | |
881 | */ | |
882 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
883 | struct snd_kcontrol *kcontrol, int event) | |
884 | { | |
885 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
a3cc056b | 886 | return regulator_enable(w->regulator); |
62ea874a | 887 | else |
a3cc056b | 888 | return regulator_disable_deferred(w->regulator, w->shift); |
62ea874a MB |
889 | } |
890 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
891 | ||
d805002b MB |
892 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
893 | { | |
9b8a83b2 MB |
894 | if (w->power_checked) |
895 | return w->new_power; | |
896 | ||
d805002b | 897 | if (w->force) |
9b8a83b2 | 898 | w->new_power = 1; |
d805002b | 899 | else |
9b8a83b2 MB |
900 | w->new_power = w->power_check(w); |
901 | ||
902 | w->power_checked = true; | |
903 | ||
904 | return w->new_power; | |
d805002b MB |
905 | } |
906 | ||
cd0f2d47 MB |
907 | /* Generic check to see if a widget should be powered. |
908 | */ | |
909 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
910 | { | |
911 | int in, out; | |
912 | ||
de02d078 MB |
913 | DAPM_UPDATE_STAT(w, power_checks); |
914 | ||
cd0f2d47 | 915 | in = is_connected_input_ep(w); |
ce6120cc | 916 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 917 | out = is_connected_output_ep(w); |
ce6120cc | 918 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
919 | return out != 0 && in != 0; |
920 | } | |
921 | ||
888df395 MB |
922 | static int dapm_dai_check_power(struct snd_soc_dapm_widget *w) |
923 | { | |
924 | DAPM_UPDATE_STAT(w, power_checks); | |
925 | ||
926 | return w->active; | |
927 | } | |
928 | ||
6ea31b9f MB |
929 | /* Check to see if an ADC has power */ |
930 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
931 | { | |
932 | int in; | |
933 | ||
de02d078 MB |
934 | DAPM_UPDATE_STAT(w, power_checks); |
935 | ||
6ea31b9f MB |
936 | if (w->active) { |
937 | in = is_connected_input_ep(w); | |
ce6120cc | 938 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
939 | return in != 0; |
940 | } else { | |
941 | return dapm_generic_check_power(w); | |
942 | } | |
943 | } | |
944 | ||
945 | /* Check to see if a DAC has power */ | |
946 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
947 | { | |
948 | int out; | |
949 | ||
de02d078 MB |
950 | DAPM_UPDATE_STAT(w, power_checks); |
951 | ||
6ea31b9f MB |
952 | if (w->active) { |
953 | out = is_connected_output_ep(w); | |
ce6120cc | 954 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
955 | return out != 0; |
956 | } else { | |
957 | return dapm_generic_check_power(w); | |
958 | } | |
959 | } | |
960 | ||
246d0a17 MB |
961 | /* Check to see if a power supply is needed */ |
962 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
963 | { | |
964 | struct snd_soc_dapm_path *path; | |
246d0a17 | 965 | |
de02d078 MB |
966 | DAPM_UPDATE_STAT(w, power_checks); |
967 | ||
246d0a17 MB |
968 | /* Check if one of our outputs is connected */ |
969 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
970 | DAPM_UPDATE_STAT(w, neighbour_checks); |
971 | ||
bf3a9e13 MB |
972 | if (path->weak) |
973 | continue; | |
974 | ||
215edda3 MB |
975 | if (path->connected && |
976 | !path->connected(path->source, path->sink)) | |
977 | continue; | |
978 | ||
3017358a MB |
979 | if (!path->sink) |
980 | continue; | |
981 | ||
f68d7e16 MB |
982 | if (dapm_widget_power_check(path->sink)) |
983 | return 1; | |
246d0a17 MB |
984 | } |
985 | ||
ce6120cc | 986 | dapm_clear_walk(w->dapm); |
246d0a17 | 987 | |
f68d7e16 | 988 | return 0; |
246d0a17 MB |
989 | } |
990 | ||
35c64bca MB |
991 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
992 | { | |
993 | return 1; | |
994 | } | |
995 | ||
38357ab2 MB |
996 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
997 | struct snd_soc_dapm_widget *b, | |
828a842f | 998 | bool power_up) |
42aa3418 | 999 | { |
828a842f MB |
1000 | int *sort; |
1001 | ||
1002 | if (power_up) | |
1003 | sort = dapm_up_seq; | |
1004 | else | |
1005 | sort = dapm_down_seq; | |
1006 | ||
38357ab2 MB |
1007 | if (sort[a->id] != sort[b->id]) |
1008 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
1009 | if (a->subseq != b->subseq) { |
1010 | if (power_up) | |
1011 | return a->subseq - b->subseq; | |
1012 | else | |
1013 | return b->subseq - a->subseq; | |
1014 | } | |
b22ead2a MB |
1015 | if (a->reg != b->reg) |
1016 | return a->reg - b->reg; | |
84dab567 MB |
1017 | if (a->dapm != b->dapm) |
1018 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 1019 | |
38357ab2 MB |
1020 | return 0; |
1021 | } | |
42aa3418 | 1022 | |
38357ab2 MB |
1023 | /* Insert a widget in order into a DAPM power sequence. */ |
1024 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1025 | struct list_head *list, | |
828a842f | 1026 | bool power_up) |
38357ab2 MB |
1027 | { |
1028 | struct snd_soc_dapm_widget *w; | |
1029 | ||
1030 | list_for_each_entry(w, list, power_list) | |
828a842f | 1031 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1032 | list_add_tail(&new_widget->power_list, &w->power_list); |
1033 | return; | |
1034 | } | |
1035 | ||
1036 | list_add_tail(&new_widget->power_list, list); | |
1037 | } | |
1038 | ||
68f89ad8 MB |
1039 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
1040 | struct snd_soc_dapm_widget *w, int event) | |
1041 | { | |
1042 | struct snd_soc_card *card = dapm->card; | |
1043 | const char *ev_name; | |
1044 | int power, ret; | |
1045 | ||
1046 | switch (event) { | |
1047 | case SND_SOC_DAPM_PRE_PMU: | |
1048 | ev_name = "PRE_PMU"; | |
1049 | power = 1; | |
1050 | break; | |
1051 | case SND_SOC_DAPM_POST_PMU: | |
1052 | ev_name = "POST_PMU"; | |
1053 | power = 1; | |
1054 | break; | |
1055 | case SND_SOC_DAPM_PRE_PMD: | |
1056 | ev_name = "PRE_PMD"; | |
1057 | power = 0; | |
1058 | break; | |
1059 | case SND_SOC_DAPM_POST_PMD: | |
1060 | ev_name = "POST_PMD"; | |
1061 | power = 0; | |
1062 | break; | |
1063 | default: | |
1064 | BUG(); | |
1065 | return; | |
1066 | } | |
1067 | ||
1068 | if (w->power != power) | |
1069 | return; | |
1070 | ||
1071 | if (w->event && (w->event_flags & event)) { | |
1072 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1073 | w->name, ev_name); | |
84e90930 | 1074 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1075 | ret = w->event(w, NULL, event); |
84e90930 | 1076 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
1077 | if (ret < 0) |
1078 | pr_err("%s: %s event failed: %d\n", | |
1079 | ev_name, w->name, ret); | |
1080 | } | |
1081 | } | |
1082 | ||
b22ead2a | 1083 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1084 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1085 | struct list_head *pending) |
163cac06 | 1086 | { |
3a45b867 | 1087 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1088 | struct snd_soc_dapm_widget *w; |
1089 | int reg, power; | |
b22ead2a MB |
1090 | unsigned int value = 0; |
1091 | unsigned int mask = 0; | |
1092 | unsigned int cur_mask; | |
1093 | ||
1094 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1095 | power_list)->reg; | |
1096 | ||
1097 | list_for_each_entry(w, pending, power_list) { | |
1098 | cur_mask = 1 << w->shift; | |
1099 | BUG_ON(reg != w->reg); | |
1100 | ||
1101 | if (w->invert) | |
1102 | power = !w->power; | |
1103 | else | |
1104 | power = w->power; | |
1105 | ||
1106 | mask |= cur_mask; | |
1107 | if (power) | |
1108 | value |= cur_mask; | |
1109 | ||
fd8d3bc0 | 1110 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1111 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1112 | w->name, reg, value, mask); | |
81628103 | 1113 | |
68f89ad8 MB |
1114 | /* Check for events */ |
1115 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1116 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1117 | } |
1118 | ||
1119 | if (reg >= 0) { | |
29376bc7 MB |
1120 | /* Any widget will do, they should all be updating the |
1121 | * same register. | |
1122 | */ | |
1123 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1124 | power_list); | |
1125 | ||
fd8d3bc0 | 1126 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1127 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1128 | value, mask, reg, card->pop_time); |
1129 | pop_wait(card->pop_time); | |
49575fb5 | 1130 | soc_widget_update_bits_locked(w, reg, mask, value); |
b22ead2a MB |
1131 | } |
1132 | ||
81628103 | 1133 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1134 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1135 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1136 | } |
b22ead2a | 1137 | } |
42aa3418 | 1138 | |
b22ead2a MB |
1139 | /* Apply a DAPM power sequence. |
1140 | * | |
1141 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1142 | * order to minimise the number of writes to the device required | |
1143 | * multiple widgets will be updated in a single write where possible. | |
1144 | * Currently anything that requires more than a single write is not | |
1145 | * handled. | |
1146 | */ | |
ce6120cc | 1147 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1148 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1149 | { |
1150 | struct snd_soc_dapm_widget *w, *n; | |
1151 | LIST_HEAD(pending); | |
1152 | int cur_sort = -1; | |
20e4859d | 1153 | int cur_subseq = -1; |
b22ead2a | 1154 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1155 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1156 | int ret, i; |
828a842f MB |
1157 | int *sort; |
1158 | ||
1159 | if (power_up) | |
1160 | sort = dapm_up_seq; | |
1161 | else | |
1162 | sort = dapm_down_seq; | |
163cac06 | 1163 | |
b22ead2a MB |
1164 | list_for_each_entry_safe(w, n, list, power_list) { |
1165 | ret = 0; | |
1166 | ||
1167 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1168 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1169 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1170 | if (!list_empty(&pending)) |
7be31be8 | 1171 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1172 | |
474b62d6 MB |
1173 | if (cur_dapm && cur_dapm->seq_notifier) { |
1174 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1175 | if (sort[i] == cur_sort) | |
1176 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1177 | i, |
1178 | cur_subseq); | |
474b62d6 MB |
1179 | } |
1180 | ||
b22ead2a MB |
1181 | INIT_LIST_HEAD(&pending); |
1182 | cur_sort = -1; | |
b0b3e6f8 | 1183 | cur_subseq = INT_MIN; |
b22ead2a | 1184 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1185 | cur_dapm = NULL; |
b22ead2a MB |
1186 | } |
1187 | ||
163cac06 MB |
1188 | switch (w->id) { |
1189 | case snd_soc_dapm_pre: | |
1190 | if (!w->event) | |
b22ead2a MB |
1191 | list_for_each_entry_safe_continue(w, n, list, |
1192 | power_list); | |
163cac06 | 1193 | |
b22ead2a | 1194 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1195 | ret = w->event(w, |
1196 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1197 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1198 | ret = w->event(w, |
1199 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1200 | break; |
1201 | ||
1202 | case snd_soc_dapm_post: | |
1203 | if (!w->event) | |
b22ead2a MB |
1204 | list_for_each_entry_safe_continue(w, n, list, |
1205 | power_list); | |
163cac06 | 1206 | |
b22ead2a | 1207 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1208 | ret = w->event(w, |
1209 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1210 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1211 | ret = w->event(w, |
1212 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1213 | break; |
1214 | ||
b22ead2a | 1215 | default: |
81628103 MB |
1216 | /* Queue it up for application */ |
1217 | cur_sort = sort[w->id]; | |
20e4859d | 1218 | cur_subseq = w->subseq; |
81628103 | 1219 | cur_reg = w->reg; |
7be31be8 | 1220 | cur_dapm = w->dapm; |
81628103 MB |
1221 | list_move(&w->power_list, &pending); |
1222 | break; | |
163cac06 | 1223 | } |
b22ead2a MB |
1224 | |
1225 | if (ret < 0) | |
f7d41ae8 JN |
1226 | dev_err(w->dapm->dev, |
1227 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1228 | } |
b22ead2a MB |
1229 | |
1230 | if (!list_empty(&pending)) | |
28e86808 | 1231 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1232 | |
1233 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1234 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1235 | if (sort[i] == cur_sort) | |
1236 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1237 | i, cur_subseq); |
474b62d6 | 1238 | } |
42aa3418 MB |
1239 | } |
1240 | ||
97404f2e MB |
1241 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1242 | { | |
1243 | struct snd_soc_dapm_update *update = dapm->update; | |
1244 | struct snd_soc_dapm_widget *w; | |
1245 | int ret; | |
1246 | ||
1247 | if (!update) | |
1248 | return; | |
1249 | ||
1250 | w = update->widget; | |
1251 | ||
1252 | if (w->event && | |
1253 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1254 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1255 | if (ret != 0) | |
1256 | pr_err("%s DAPM pre-event failed: %d\n", | |
1257 | w->name, ret); | |
1258 | } | |
1259 | ||
49575fb5 | 1260 | ret = soc_widget_update_bits_locked(w, update->reg, update->mask, |
97404f2e MB |
1261 | update->val); |
1262 | if (ret < 0) | |
1263 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1264 | ||
1265 | if (w->event && | |
1266 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1267 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1268 | if (ret != 0) | |
1269 | pr_err("%s DAPM post-event failed: %d\n", | |
1270 | w->name, ret); | |
1271 | } | |
1272 | } | |
1273 | ||
9d0624a7 MB |
1274 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1275 | * they're changing state. | |
1276 | */ | |
1277 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1278 | { | |
1279 | struct snd_soc_dapm_context *d = data; | |
1280 | int ret; | |
1281 | ||
56fba41f MB |
1282 | /* If we're off and we're not supposed to be go into STANDBY */ |
1283 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1284 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1285 | if (d->dev) |
1286 | pm_runtime_get_sync(d->dev); | |
1287 | ||
9d0624a7 MB |
1288 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1289 | if (ret != 0) | |
1290 | dev_err(d->dev, | |
1291 | "Failed to turn on bias: %d\n", ret); | |
1292 | } | |
1293 | ||
56fba41f MB |
1294 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1295 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1296 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1297 | if (ret != 0) | |
1298 | dev_err(d->dev, | |
1299 | "Failed to prepare bias: %d\n", ret); | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | /* Async callback run prior to DAPM sequences - brings to their final | |
1304 | * state. | |
1305 | */ | |
1306 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1307 | { | |
1308 | struct snd_soc_dapm_context *d = data; | |
1309 | int ret; | |
1310 | ||
1311 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1312 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1313 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1314 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1315 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1316 | if (ret != 0) | |
1317 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1318 | ret); | |
1319 | } | |
97404f2e | 1320 | |
9d0624a7 | 1321 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1322 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1323 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1324 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1325 | if (ret != 0) | |
1326 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
f1aac484 MB |
1327 | |
1328 | if (d->dev) | |
fb644e9c | 1329 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1330 | } |
1331 | ||
1332 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1333 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1334 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1335 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1336 | if (ret != 0) | |
1337 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1338 | ret); | |
1339 | } | |
1340 | } | |
97404f2e | 1341 | |
fe4fda5d MB |
1342 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1343 | bool power, bool connect) | |
1344 | { | |
1345 | /* If a connection is being made or broken then that update | |
1346 | * will have marked the peer dirty, otherwise the widgets are | |
1347 | * not connected and this update has no impact. */ | |
1348 | if (!connect) | |
1349 | return; | |
1350 | ||
1351 | /* If the peer is already in the state we're moving to then we | |
1352 | * won't have an impact on it. */ | |
1353 | if (power != peer->power) | |
75c1f891 | 1354 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1355 | } |
1356 | ||
05623c43 MB |
1357 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1358 | struct list_head *up_list, | |
1359 | struct list_head *down_list) | |
1360 | { | |
db432b41 MB |
1361 | struct snd_soc_dapm_path *path; |
1362 | ||
05623c43 MB |
1363 | if (w->power == power) |
1364 | return; | |
1365 | ||
1366 | trace_snd_soc_dapm_widget_power(w, power); | |
1367 | ||
db432b41 | 1368 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1369 | * also. |
db432b41 MB |
1370 | */ |
1371 | list_for_each_entry(path, &w->sources, list_sink) { | |
1372 | if (path->source) { | |
fe4fda5d MB |
1373 | dapm_widget_set_peer_power(path->source, power, |
1374 | path->connect); | |
db432b41 MB |
1375 | } |
1376 | } | |
f3bf3e45 MB |
1377 | switch (w->id) { |
1378 | case snd_soc_dapm_supply: | |
62ea874a | 1379 | case snd_soc_dapm_regulator_supply: |
f3bf3e45 MB |
1380 | /* Supplies can't affect their outputs, only their inputs */ |
1381 | break; | |
1382 | default: | |
1383 | list_for_each_entry(path, &w->sinks, list_source) { | |
1384 | if (path->sink) { | |
1385 | dapm_widget_set_peer_power(path->sink, power, | |
1386 | path->connect); | |
1387 | } | |
db432b41 | 1388 | } |
f3bf3e45 | 1389 | break; |
db432b41 MB |
1390 | } |
1391 | ||
05623c43 MB |
1392 | if (power) |
1393 | dapm_seq_insert(w, up_list, true); | |
1394 | else | |
1395 | dapm_seq_insert(w, down_list, false); | |
1396 | ||
1397 | w->power = power; | |
1398 | } | |
1399 | ||
7c81beb0 MB |
1400 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1401 | struct list_head *up_list, | |
1402 | struct list_head *down_list) | |
1403 | { | |
7c81beb0 MB |
1404 | int power; |
1405 | ||
1406 | switch (w->id) { | |
1407 | case snd_soc_dapm_pre: | |
1408 | dapm_seq_insert(w, down_list, false); | |
1409 | break; | |
1410 | case snd_soc_dapm_post: | |
1411 | dapm_seq_insert(w, up_list, true); | |
1412 | break; | |
1413 | ||
1414 | default: | |
d805002b | 1415 | power = dapm_widget_power_check(w); |
7c81beb0 | 1416 | |
05623c43 | 1417 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1418 | break; |
1419 | } | |
1420 | } | |
1421 | ||
2b97eabc RP |
1422 | /* |
1423 | * Scan each dapm widget for complete audio path. | |
1424 | * A complete path is a route that has valid endpoints i.e.:- | |
1425 | * | |
1426 | * o DAC to output pin. | |
1427 | * o Input Pin to ADC. | |
1428 | * o Input pin to Output pin (bypass, sidetone) | |
1429 | * o DAC to ADC (loopback). | |
1430 | */ | |
ce6120cc | 1431 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1432 | { |
12ea2c78 | 1433 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1434 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1435 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1436 | LIST_HEAD(up_list); |
1437 | LIST_HEAD(down_list); | |
9d0624a7 | 1438 | LIST_HEAD(async_domain); |
56fba41f | 1439 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1440 | |
84e90930 MB |
1441 | trace_snd_soc_dapm_start(card); |
1442 | ||
56fba41f MB |
1443 | list_for_each_entry(d, &card->dapm_list, list) { |
1444 | if (d->n_widgets || d->codec == NULL) { | |
1445 | if (d->idle_bias_off) | |
1446 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1447 | else | |
1448 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1449 | } | |
1450 | } | |
7be31be8 | 1451 | |
6c120e19 | 1452 | dapm_reset(card); |
9b8a83b2 | 1453 | |
6d3ddc81 | 1454 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1455 | * lists indicating if they should be powered up or down. We |
1456 | * only check widgets that have been flagged as dirty but note | |
1457 | * that new widgets may be added to the dirty list while we | |
1458 | * iterate. | |
6d3ddc81 | 1459 | */ |
db432b41 | 1460 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1461 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1462 | } |
1463 | ||
f9de6d74 | 1464 | list_for_each_entry(w, &card->widgets, list) { |
db432b41 MB |
1465 | list_del_init(&w->dirty); |
1466 | ||
f9de6d74 MB |
1467 | if (w->power) { |
1468 | d = w->dapm; | |
1469 | ||
1470 | /* Supplies and micbiases only bring the | |
1471 | * context up to STANDBY as unless something | |
1472 | * else is active and passing audio they | |
afe62367 MB |
1473 | * generally don't require full power. Signal |
1474 | * generators are virtual pins and have no | |
1475 | * power impact themselves. | |
f9de6d74 MB |
1476 | */ |
1477 | switch (w->id) { | |
afe62367 MB |
1478 | case snd_soc_dapm_siggen: |
1479 | break; | |
f9de6d74 | 1480 | case snd_soc_dapm_supply: |
62ea874a | 1481 | case snd_soc_dapm_regulator_supply: |
f9de6d74 MB |
1482 | case snd_soc_dapm_micbias: |
1483 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1484 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1485 | break; | |
1486 | default: | |
1487 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1488 | break; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | } | |
1493 | ||
b14b76a5 MB |
1494 | /* If there are no DAPM widgets then try to figure out power from the |
1495 | * event type. | |
1496 | */ | |
97c866de | 1497 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1498 | switch (event) { |
1499 | case SND_SOC_DAPM_STREAM_START: | |
1500 | case SND_SOC_DAPM_STREAM_RESUME: | |
56fba41f | 1501 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
b14b76a5 | 1502 | break; |
862af8ad | 1503 | case SND_SOC_DAPM_STREAM_STOP: |
e7c80e2a | 1504 | if (dapm->codec && dapm->codec->active) |
56fba41f MB |
1505 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
1506 | else | |
1507 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; | |
862af8ad | 1508 | break; |
50b6bce5 | 1509 | case SND_SOC_DAPM_STREAM_SUSPEND: |
56fba41f | 1510 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; |
50b6bce5 | 1511 | break; |
b14b76a5 | 1512 | case SND_SOC_DAPM_STREAM_NOP: |
56fba41f | 1513 | dapm->target_bias_level = dapm->bias_level; |
50b6bce5 | 1514 | break; |
b14b76a5 MB |
1515 | default: |
1516 | break; | |
1517 | } | |
1518 | } | |
1519 | ||
85a843c5 MB |
1520 | /* Force all contexts in the card to the same bias state if |
1521 | * they're not ground referenced. | |
1522 | */ | |
56fba41f | 1523 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1524 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1525 | if (d->target_bias_level > bias) |
1526 | bias = d->target_bias_level; | |
52ba67bf | 1527 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1528 | if (!d->idle_bias_off) |
1529 | d->target_bias_level = bias; | |
52ba67bf | 1530 | |
de02d078 | 1531 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1532 | |
9d0624a7 MB |
1533 | /* Run all the bias changes in parallel */ |
1534 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1535 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1536 | &async_domain); | |
1537 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1538 | |
6d3ddc81 | 1539 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1540 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1541 | |
97404f2e MB |
1542 | dapm_widget_update(dapm); |
1543 | ||
6d3ddc81 | 1544 | /* Now power up. */ |
828a842f | 1545 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1546 | |
9d0624a7 MB |
1547 | /* Run all the bias changes in parallel */ |
1548 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1549 | async_schedule_domain(dapm_post_sequence_async, d, | |
1550 | &async_domain); | |
1551 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1552 | |
8078d87f LG |
1553 | /* do we need to notify any clients that DAPM event is complete */ |
1554 | list_for_each_entry(d, &card->dapm_list, list) { | |
1555 | if (d->stream_event) | |
1556 | d->stream_event(d, event); | |
1557 | } | |
1558 | ||
fd8d3bc0 JN |
1559 | pop_dbg(dapm->dev, card->pop_time, |
1560 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1561 | pop_wait(card->pop_time); |
cb507e7e | 1562 | |
84e90930 MB |
1563 | trace_snd_soc_dapm_done(card); |
1564 | ||
42aa3418 | 1565 | return 0; |
2b97eabc RP |
1566 | } |
1567 | ||
79fb9387 MB |
1568 | #ifdef CONFIG_DEBUG_FS |
1569 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1570 | { | |
1571 | file->private_data = inode->i_private; | |
1572 | return 0; | |
1573 | } | |
1574 | ||
1575 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1576 | char __user *user_buf, | |
1577 | size_t count, loff_t *ppos) | |
1578 | { | |
1579 | struct snd_soc_dapm_widget *w = file->private_data; | |
1580 | char *buf; | |
1581 | int in, out; | |
1582 | ssize_t ret; | |
1583 | struct snd_soc_dapm_path *p = NULL; | |
1584 | ||
1585 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1586 | if (!buf) | |
1587 | return -ENOMEM; | |
1588 | ||
1589 | in = is_connected_input_ep(w); | |
ce6120cc | 1590 | dapm_clear_walk(w->dapm); |
79fb9387 | 1591 | out = is_connected_output_ep(w); |
ce6120cc | 1592 | dapm_clear_walk(w->dapm); |
79fb9387 | 1593 | |
f13ebada MB |
1594 | ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", |
1595 | w->name, w->power ? "On" : "Off", | |
1596 | w->force ? " (forced)" : "", in, out); | |
79fb9387 | 1597 | |
d033c36a MB |
1598 | if (w->reg >= 0) |
1599 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1600 | " - R%d(0x%x) bit %d", | |
1601 | w->reg, w->reg, w->shift); | |
1602 | ||
1603 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1604 | ||
3eef08ba MB |
1605 | if (w->sname) |
1606 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1607 | w->sname, | |
1608 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1609 | |
1610 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1611 | if (p->connected && !p->connected(w, p->sink)) |
1612 | continue; | |
1613 | ||
79fb9387 MB |
1614 | if (p->connect) |
1615 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1616 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1617 | p->name ? p->name : "static", |
1618 | p->source->name); | |
1619 | } | |
1620 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1621 | if (p->connected && !p->connected(w, p->sink)) |
1622 | continue; | |
1623 | ||
79fb9387 MB |
1624 | if (p->connect) |
1625 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1626 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1627 | p->name ? p->name : "static", |
1628 | p->sink->name); | |
1629 | } | |
1630 | ||
1631 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1632 | ||
1633 | kfree(buf); | |
1634 | return ret; | |
1635 | } | |
1636 | ||
1637 | static const struct file_operations dapm_widget_power_fops = { | |
1638 | .open = dapm_widget_power_open_file, | |
1639 | .read = dapm_widget_power_read_file, | |
6038f373 | 1640 | .llseek = default_llseek, |
79fb9387 MB |
1641 | }; |
1642 | ||
ef49e4fa MB |
1643 | static int dapm_bias_open_file(struct inode *inode, struct file *file) |
1644 | { | |
1645 | file->private_data = inode->i_private; | |
1646 | return 0; | |
1647 | } | |
1648 | ||
1649 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, | |
1650 | size_t count, loff_t *ppos) | |
1651 | { | |
1652 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1653 | char *level; | |
1654 | ||
1655 | switch (dapm->bias_level) { | |
1656 | case SND_SOC_BIAS_ON: | |
1657 | level = "On\n"; | |
1658 | break; | |
1659 | case SND_SOC_BIAS_PREPARE: | |
1660 | level = "Prepare\n"; | |
1661 | break; | |
1662 | case SND_SOC_BIAS_STANDBY: | |
1663 | level = "Standby\n"; | |
1664 | break; | |
1665 | case SND_SOC_BIAS_OFF: | |
1666 | level = "Off\n"; | |
1667 | break; | |
1668 | default: | |
1669 | BUG(); | |
1670 | level = "Unknown\n"; | |
1671 | break; | |
1672 | } | |
1673 | ||
1674 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1675 | strlen(level)); | |
1676 | } | |
1677 | ||
1678 | static const struct file_operations dapm_bias_fops = { | |
1679 | .open = dapm_bias_open_file, | |
1680 | .read = dapm_bias_read_file, | |
1681 | .llseek = default_llseek, | |
1682 | }; | |
1683 | ||
8eecaf62 LPC |
1684 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1685 | struct dentry *parent) | |
79fb9387 | 1686 | { |
79fb9387 MB |
1687 | struct dentry *d; |
1688 | ||
8eecaf62 LPC |
1689 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1690 | ||
1691 | if (!dapm->debugfs_dapm) { | |
f1e90af2 | 1692 | dev_warn(dapm->dev, |
8eecaf62 | 1693 | "Failed to create DAPM debugfs directory\n"); |
79fb9387 | 1694 | return; |
8eecaf62 | 1695 | } |
79fb9387 | 1696 | |
ef49e4fa MB |
1697 | d = debugfs_create_file("bias_level", 0444, |
1698 | dapm->debugfs_dapm, dapm, | |
1699 | &dapm_bias_fops); | |
1700 | if (!d) | |
1701 | dev_warn(dapm->dev, | |
1702 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1703 | } |
ef49e4fa | 1704 | |
d5d1e0be LPC |
1705 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1706 | { | |
1707 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1708 | struct dentry *d; | |
79fb9387 | 1709 | |
d5d1e0be LPC |
1710 | if (!dapm->debugfs_dapm || !w->name) |
1711 | return; | |
1712 | ||
1713 | d = debugfs_create_file(w->name, 0444, | |
1714 | dapm->debugfs_dapm, w, | |
1715 | &dapm_widget_power_fops); | |
1716 | if (!d) | |
1717 | dev_warn(w->dapm->dev, | |
1718 | "ASoC: Failed to create %s debugfs file\n", | |
1719 | w->name); | |
79fb9387 | 1720 | } |
d5d1e0be | 1721 | |
6c45e126 LPC |
1722 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1723 | { | |
1724 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1725 | } | |
1726 | ||
79fb9387 | 1727 | #else |
8eecaf62 LPC |
1728 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1729 | struct dentry *parent) | |
79fb9387 MB |
1730 | { |
1731 | } | |
d5d1e0be LPC |
1732 | |
1733 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1734 | { | |
1735 | } | |
1736 | ||
6c45e126 LPC |
1737 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1738 | { | |
1739 | } | |
1740 | ||
79fb9387 MB |
1741 | #endif |
1742 | ||
2b97eabc | 1743 | /* test and update the power status of a mux widget */ |
4edbb345 | 1744 | static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
40f02cd9 | 1745 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) |
2b97eabc RP |
1746 | { |
1747 | struct snd_soc_dapm_path *path; | |
1748 | int found = 0; | |
1749 | ||
eff317d0 | 1750 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1751 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1752 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1753 | return -ENODEV; |
1754 | ||
2b97eabc | 1755 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1756 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1757 | if (path->kcontrol != kcontrol) |
1758 | continue; | |
1759 | ||
cb01e2b9 | 1760 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1761 | continue; |
1762 | ||
1763 | found = 1; | |
1764 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1765 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1766 | path->connect = 1; /* new connection */ |
75c1f891 | 1767 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1768 | } else { |
1769 | if (path->connect) | |
75c1f891 MB |
1770 | dapm_mark_dirty(path->source, |
1771 | "mux disconnection"); | |
2b97eabc | 1772 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1773 | } |
2b97eabc RP |
1774 | } |
1775 | ||
db432b41 | 1776 | if (found) { |
75c1f891 | 1777 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1778 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1779 | } |
2b97eabc RP |
1780 | |
1781 | return 0; | |
1782 | } | |
4edbb345 LG |
1783 | |
1784 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, | |
1785 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) | |
1786 | { | |
1787 | struct snd_soc_card *card = widget->dapm->card; | |
1788 | int ret; | |
1789 | ||
3cd04343 | 1790 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1791 | ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1792 | mutex_unlock(&card->dapm_mutex); | |
1793 | return ret; | |
1794 | } | |
40f02cd9 | 1795 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1796 | |
1b075e3f | 1797 | /* test and update the power status of a mixer or switch widget */ |
4edbb345 | 1798 | static int soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1799 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1800 | { |
1801 | struct snd_soc_dapm_path *path; | |
1802 | int found = 0; | |
1803 | ||
1b075e3f | 1804 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1805 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1806 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1807 | return -ENODEV; |
1808 | ||
2b97eabc | 1809 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1810 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1811 | if (path->kcontrol != kcontrol) |
1812 | continue; | |
1813 | ||
1814 | /* found, now check type */ | |
1815 | found = 1; | |
283375ce | 1816 | path->connect = connect; |
75c1f891 | 1817 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
1818 | } |
1819 | ||
db432b41 | 1820 | if (found) { |
75c1f891 | 1821 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 1822 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1823 | } |
2b97eabc RP |
1824 | |
1825 | return 0; | |
1826 | } | |
4edbb345 LG |
1827 | |
1828 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, | |
1829 | struct snd_kcontrol *kcontrol, int connect) | |
1830 | { | |
1831 | struct snd_soc_card *card = widget->dapm->card; | |
1832 | int ret; | |
1833 | ||
3cd04343 | 1834 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
4edbb345 LG |
1835 | ret = soc_dapm_mixer_update_power(widget, kcontrol, connect); |
1836 | mutex_unlock(&card->dapm_mutex); | |
1837 | return ret; | |
1838 | } | |
40f02cd9 | 1839 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
1840 | |
1841 | /* show dapm widget status in sys fs */ | |
1842 | static ssize_t dapm_widget_show(struct device *dev, | |
1843 | struct device_attribute *attr, char *buf) | |
1844 | { | |
36ae1a96 | 1845 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 1846 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
1847 | struct snd_soc_dapm_widget *w; |
1848 | int count = 0; | |
1849 | char *state = "not set"; | |
1850 | ||
97c866de JN |
1851 | list_for_each_entry(w, &codec->card->widgets, list) { |
1852 | if (w->dapm != &codec->dapm) | |
1853 | continue; | |
2b97eabc RP |
1854 | |
1855 | /* only display widgets that burnm power */ | |
1856 | switch (w->id) { | |
1857 | case snd_soc_dapm_hp: | |
1858 | case snd_soc_dapm_mic: | |
1859 | case snd_soc_dapm_spk: | |
1860 | case snd_soc_dapm_line: | |
1861 | case snd_soc_dapm_micbias: | |
1862 | case snd_soc_dapm_dac: | |
1863 | case snd_soc_dapm_adc: | |
1864 | case snd_soc_dapm_pga: | |
d88429a6 | 1865 | case snd_soc_dapm_out_drv: |
2b97eabc | 1866 | case snd_soc_dapm_mixer: |
ca9c1aae | 1867 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1868 | case snd_soc_dapm_supply: |
62ea874a | 1869 | case snd_soc_dapm_regulator_supply: |
2b97eabc RP |
1870 | if (w->name) |
1871 | count += sprintf(buf + count, "%s: %s\n", | |
1872 | w->name, w->power ? "On":"Off"); | |
1873 | break; | |
1874 | default: | |
1875 | break; | |
1876 | } | |
1877 | } | |
1878 | ||
ce6120cc | 1879 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1880 | case SND_SOC_BIAS_ON: |
1881 | state = "On"; | |
2b97eabc | 1882 | break; |
0be9898a MB |
1883 | case SND_SOC_BIAS_PREPARE: |
1884 | state = "Prepare"; | |
2b97eabc | 1885 | break; |
0be9898a MB |
1886 | case SND_SOC_BIAS_STANDBY: |
1887 | state = "Standby"; | |
2b97eabc | 1888 | break; |
0be9898a MB |
1889 | case SND_SOC_BIAS_OFF: |
1890 | state = "Off"; | |
2b97eabc RP |
1891 | break; |
1892 | } | |
1893 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1894 | ||
1895 | return count; | |
1896 | } | |
1897 | ||
1898 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1899 | ||
1900 | int snd_soc_dapm_sys_add(struct device *dev) | |
1901 | { | |
12ef193d | 1902 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1903 | } |
1904 | ||
1905 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1906 | { | |
aef90843 | 1907 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1908 | } |
1909 | ||
1910 | /* free all dapm widgets and resources */ | |
ce6120cc | 1911 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1912 | { |
1913 | struct snd_soc_dapm_widget *w, *next_w; | |
1914 | struct snd_soc_dapm_path *p, *next_p; | |
1915 | ||
97c866de JN |
1916 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1917 | if (w->dapm != dapm) | |
1918 | continue; | |
2b97eabc | 1919 | list_del(&w->list); |
8ddab3f5 JN |
1920 | /* |
1921 | * remove source and sink paths associated to this widget. | |
1922 | * While removing the path, remove reference to it from both | |
1923 | * source and sink widgets so that path is removed only once. | |
1924 | */ | |
1925 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1926 | list_del(&p->list_sink); | |
1927 | list_del(&p->list_source); | |
1928 | list_del(&p->list); | |
1929 | kfree(p->long_name); | |
1930 | kfree(p); | |
1931 | } | |
1932 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1933 | list_del(&p->list_sink); | |
1934 | list_del(&p->list_source); | |
1935 | list_del(&p->list); | |
1936 | kfree(p->long_name); | |
1937 | kfree(p); | |
1938 | } | |
fad59888 | 1939 | kfree(w->kcontrols); |
ead9b919 | 1940 | kfree(w->name); |
2b97eabc RP |
1941 | kfree(w); |
1942 | } | |
2b97eabc RP |
1943 | } |
1944 | ||
91a5fca4 LPC |
1945 | static struct snd_soc_dapm_widget *dapm_find_widget( |
1946 | struct snd_soc_dapm_context *dapm, const char *pin, | |
1947 | bool search_other_contexts) | |
a5302181 LG |
1948 | { |
1949 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 1950 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 1951 | |
97c866de | 1952 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 1953 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
1954 | if (w->dapm == dapm) |
1955 | return w; | |
1956 | else | |
1957 | fallback = w; | |
a5302181 LG |
1958 | } |
1959 | } | |
1960 | ||
91a5fca4 LPC |
1961 | if (search_other_contexts) |
1962 | return fallback; | |
1963 | ||
1964 | return NULL; | |
1965 | } | |
1966 | ||
1967 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
1968 | const char *pin, int status) | |
1969 | { | |
1970 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
1971 | ||
1972 | if (!w) { | |
1973 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
1974 | return -EINVAL; | |
0d86733c MB |
1975 | } |
1976 | ||
1a8b2d9d MB |
1977 | if (w->connected != status) |
1978 | dapm_mark_dirty(w, "pin configuration"); | |
1979 | ||
91a5fca4 LPC |
1980 | w->connected = status; |
1981 | if (status == 0) | |
1982 | w->force = 0; | |
1983 | ||
1984 | return 0; | |
a5302181 LG |
1985 | } |
1986 | ||
2b97eabc | 1987 | /** |
a5302181 | 1988 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1989 | * @dapm: DAPM context |
2b97eabc RP |
1990 | * |
1991 | * Walks all dapm audio paths and powers widgets according to their | |
1992 | * stream or path usage. | |
1993 | * | |
1994 | * Returns 0 for success. | |
1995 | */ | |
ce6120cc | 1996 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1997 | { |
a73fb2df LG |
1998 | int ret; |
1999 | ||
4f4c0072 MB |
2000 | /* |
2001 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
2002 | * silly DAPM runs during card startup. | |
2003 | */ | |
2004 | if (!dapm->card || !dapm->card->instantiated) | |
2005 | return 0; | |
2006 | ||
3cd04343 | 2007 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
a73fb2df LG |
2008 | ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2009 | mutex_unlock(&dapm->card->dapm_mutex); | |
2010 | return ret; | |
2b97eabc | 2011 | } |
a5302181 | 2012 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 2013 | |
ce6120cc | 2014 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 2015 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
2016 | { |
2017 | struct snd_soc_dapm_path *path; | |
2018 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 2019 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 2020 | const char *sink; |
215edda3 | 2021 | const char *control = route->control; |
ead9b919 JN |
2022 | const char *source; |
2023 | char prefixed_sink[80]; | |
2024 | char prefixed_source[80]; | |
2b97eabc RP |
2025 | int ret = 0; |
2026 | ||
88e8b9a8 | 2027 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
2028 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
2029 | dapm->codec->name_prefix, route->sink); | |
2030 | sink = prefixed_sink; | |
2031 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
2032 | dapm->codec->name_prefix, route->source); | |
2033 | source = prefixed_source; | |
2034 | } else { | |
2035 | sink = route->sink; | |
2036 | source = route->source; | |
2037 | } | |
2038 | ||
97c866de JN |
2039 | /* |
2040 | * find src and dest widgets over all widgets but favor a widget from | |
2041 | * current DAPM context | |
2042 | */ | |
2043 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 2044 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
2045 | wtsink = w; |
2046 | if (w->dapm == dapm) | |
2047 | wsink = w; | |
2b97eabc RP |
2048 | continue; |
2049 | } | |
2050 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
2051 | wtsource = w; |
2052 | if (w->dapm == dapm) | |
2053 | wsource = w; | |
2b97eabc RP |
2054 | } |
2055 | } | |
97c866de JN |
2056 | /* use widget from another DAPM context if not found from this */ |
2057 | if (!wsink) | |
2058 | wsink = wtsink; | |
2059 | if (!wsource) | |
2060 | wsource = wtsource; | |
2b97eabc RP |
2061 | |
2062 | if (wsource == NULL || wsink == NULL) | |
2063 | return -ENODEV; | |
2064 | ||
2065 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2066 | if (!path) | |
2067 | return -ENOMEM; | |
2068 | ||
2069 | path->source = wsource; | |
2070 | path->sink = wsink; | |
215edda3 | 2071 | path->connected = route->connected; |
2b97eabc RP |
2072 | INIT_LIST_HEAD(&path->list); |
2073 | INIT_LIST_HEAD(&path->list_source); | |
2074 | INIT_LIST_HEAD(&path->list_sink); | |
2075 | ||
2076 | /* check for external widgets */ | |
2077 | if (wsink->id == snd_soc_dapm_input) { | |
2078 | if (wsource->id == snd_soc_dapm_micbias || | |
2079 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2080 | wsource->id == snd_soc_dapm_line || |
2081 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2082 | wsink->ext = 1; |
2083 | } | |
2084 | if (wsource->id == snd_soc_dapm_output) { | |
2085 | if (wsink->id == snd_soc_dapm_spk || | |
2086 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2087 | wsink->id == snd_soc_dapm_line || |
2088 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2089 | wsource->ext = 1; |
2090 | } | |
2091 | ||
2092 | /* connect static paths */ | |
2093 | if (control == NULL) { | |
8ddab3f5 | 2094 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2095 | list_add(&path->list_sink, &wsink->sources); |
2096 | list_add(&path->list_source, &wsource->sinks); | |
2097 | path->connect = 1; | |
2098 | return 0; | |
2099 | } | |
2100 | ||
2101 | /* connect dynamic paths */ | |
dc2bea61 | 2102 | switch (wsink->id) { |
2b97eabc RP |
2103 | case snd_soc_dapm_adc: |
2104 | case snd_soc_dapm_dac: | |
2105 | case snd_soc_dapm_pga: | |
d88429a6 | 2106 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2107 | case snd_soc_dapm_input: |
2108 | case snd_soc_dapm_output: | |
1ab97c8c | 2109 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2110 | case snd_soc_dapm_micbias: |
2111 | case snd_soc_dapm_vmid: | |
2112 | case snd_soc_dapm_pre: | |
2113 | case snd_soc_dapm_post: | |
246d0a17 | 2114 | case snd_soc_dapm_supply: |
62ea874a | 2115 | case snd_soc_dapm_regulator_supply: |
010ff262 MB |
2116 | case snd_soc_dapm_aif_in: |
2117 | case snd_soc_dapm_aif_out: | |
888df395 | 2118 | case snd_soc_dapm_dai: |
8ddab3f5 | 2119 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2120 | list_add(&path->list_sink, &wsink->sources); |
2121 | list_add(&path->list_source, &wsource->sinks); | |
2122 | path->connect = 1; | |
2123 | return 0; | |
2124 | case snd_soc_dapm_mux: | |
24ff33ac | 2125 | case snd_soc_dapm_virt_mux: |
74155556 | 2126 | case snd_soc_dapm_value_mux: |
ce6120cc | 2127 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2128 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2129 | if (ret != 0) |
2130 | goto err; | |
2131 | break; | |
2132 | case snd_soc_dapm_switch: | |
2133 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2134 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2135 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2136 | if (ret != 0) |
2137 | goto err; | |
2138 | break; | |
2139 | case snd_soc_dapm_hp: | |
2140 | case snd_soc_dapm_mic: | |
2141 | case snd_soc_dapm_line: | |
2142 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2143 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2144 | list_add(&path->list_sink, &wsink->sources); |
2145 | list_add(&path->list_source, &wsource->sinks); | |
2146 | path->connect = 0; | |
2147 | return 0; | |
2148 | } | |
2149 | return 0; | |
2150 | ||
2151 | err: | |
f7d41ae8 JN |
2152 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
2153 | source, control, sink); | |
2b97eabc RP |
2154 | kfree(path); |
2155 | return ret; | |
2156 | } | |
105f1c28 | 2157 | |
105f1c28 MB |
2158 | /** |
2159 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2160 | * @dapm: DAPM context |
105f1c28 MB |
2161 | * @route: audio routes |
2162 | * @num: number of routes | |
2163 | * | |
2164 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2165 | * the widget receiving the audio signal, whilst the source is the sender | |
2166 | * of the audio signal. | |
2167 | * | |
2168 | * Returns 0 for success else error. On error all resources can be freed | |
2169 | * with a call to snd_soc_card_free(). | |
2170 | */ | |
ce6120cc | 2171 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2172 | const struct snd_soc_dapm_route *route, int num) |
2173 | { | |
2174 | int i, ret; | |
2175 | ||
a73fb2df | 2176 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
105f1c28 | 2177 | for (i = 0; i < num; i++) { |
ce6120cc | 2178 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 2179 | if (ret < 0) { |
f7d41ae8 JN |
2180 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
2181 | route->source, route->sink); | |
105f1c28 MB |
2182 | return ret; |
2183 | } | |
2184 | route++; | |
2185 | } | |
a73fb2df | 2186 | mutex_unlock(&dapm->card->dapm_mutex); |
105f1c28 MB |
2187 | |
2188 | return 0; | |
2189 | } | |
2190 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2191 | ||
bf3a9e13 MB |
2192 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2193 | const struct snd_soc_dapm_route *route) | |
2194 | { | |
2195 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2196 | route->source, | |
2197 | true); | |
2198 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2199 | route->sink, | |
2200 | true); | |
2201 | struct snd_soc_dapm_path *path; | |
2202 | int count = 0; | |
2203 | ||
2204 | if (!source) { | |
2205 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
2206 | route->source); | |
2207 | return -ENODEV; | |
2208 | } | |
2209 | ||
2210 | if (!sink) { | |
2211 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
2212 | route->sink); | |
2213 | return -ENODEV; | |
2214 | } | |
2215 | ||
2216 | if (route->control || route->connected) | |
2217 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
2218 | route->source, route->sink); | |
2219 | ||
2220 | list_for_each_entry(path, &source->sinks, list_source) { | |
2221 | if (path->sink == sink) { | |
2222 | path->weak = 1; | |
2223 | count++; | |
2224 | } | |
2225 | } | |
2226 | ||
2227 | if (count == 0) | |
2228 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
2229 | route->source, route->sink); | |
2230 | if (count > 1) | |
2231 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
2232 | count, route->source, route->sink); | |
2233 | ||
2234 | return 0; | |
2235 | } | |
2236 | ||
2237 | /** | |
2238 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2239 | * @dapm: DAPM context | |
2240 | * @route: audio routes | |
2241 | * @num: number of routes | |
2242 | * | |
2243 | * Mark existing routes matching those specified in the passed array | |
2244 | * as being weak, meaning that they are ignored for the purpose of | |
2245 | * power decisions. The main intended use case is for sidetone paths | |
2246 | * which couple audio between other independent paths if they are both | |
2247 | * active in order to make the combination work better at the user | |
2248 | * level but which aren't intended to be "used". | |
2249 | * | |
2250 | * Note that CODEC drivers should not use this as sidetone type paths | |
2251 | * can frequently also be used as bypass paths. | |
2252 | */ | |
2253 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2254 | const struct snd_soc_dapm_route *route, int num) | |
2255 | { | |
2256 | int i, err; | |
2257 | int ret = 0; | |
2258 | ||
a73fb2df | 2259 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
bf3a9e13 MB |
2260 | for (i = 0; i < num; i++) { |
2261 | err = snd_soc_dapm_weak_route(dapm, route); | |
2262 | if (err) | |
2263 | ret = err; | |
2264 | route++; | |
2265 | } | |
a73fb2df | 2266 | mutex_unlock(&dapm->card->dapm_mutex); |
bf3a9e13 MB |
2267 | |
2268 | return ret; | |
2269 | } | |
2270 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2271 | ||
2b97eabc RP |
2272 | /** |
2273 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2274 | * @dapm: DAPM context |
2b97eabc RP |
2275 | * |
2276 | * Checks the codec for any new dapm widgets and creates them if found. | |
2277 | * | |
2278 | * Returns 0 for success. | |
2279 | */ | |
ce6120cc | 2280 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2281 | { |
2282 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2283 | unsigned int val; |
2b97eabc | 2284 | |
a73fb2df LG |
2285 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
2286 | ||
97c866de | 2287 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2288 | { |
2289 | if (w->new) | |
2290 | continue; | |
2291 | ||
fad59888 SW |
2292 | if (w->num_kcontrols) { |
2293 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2294 | sizeof(struct snd_kcontrol *), | |
2295 | GFP_KERNEL); | |
a73fb2df LG |
2296 | if (!w->kcontrols) { |
2297 | mutex_unlock(&dapm->card->dapm_mutex); | |
fad59888 | 2298 | return -ENOMEM; |
a73fb2df | 2299 | } |
fad59888 SW |
2300 | } |
2301 | ||
2b97eabc RP |
2302 | switch(w->id) { |
2303 | case snd_soc_dapm_switch: | |
2304 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2305 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2306 | dapm_new_mixer(w); |
2b97eabc RP |
2307 | break; |
2308 | case snd_soc_dapm_mux: | |
24ff33ac | 2309 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2310 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2311 | dapm_new_mux(w); |
2b97eabc | 2312 | break; |
2b97eabc | 2313 | case snd_soc_dapm_pga: |
d88429a6 | 2314 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2315 | dapm_new_pga(w); |
2b97eabc | 2316 | break; |
7ca3a18b | 2317 | default: |
2b97eabc RP |
2318 | break; |
2319 | } | |
b66a70d5 MB |
2320 | |
2321 | /* Read the initial power state from the device */ | |
2322 | if (w->reg >= 0) { | |
0445bdf4 | 2323 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2324 | val &= 1 << w->shift; |
2325 | if (w->invert) | |
2326 | val = !val; | |
2327 | ||
2328 | if (val) | |
2329 | w->power = 1; | |
2330 | } | |
2331 | ||
2b97eabc | 2332 | w->new = 1; |
d5d1e0be | 2333 | |
7508b12a | 2334 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2335 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2336 | } |
2337 | ||
ce6120cc | 2338 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
a73fb2df | 2339 | mutex_unlock(&dapm->card->dapm_mutex); |
2b97eabc RP |
2340 | return 0; |
2341 | } | |
2342 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2343 | ||
2344 | /** | |
2345 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2346 | * @kcontrol: mixer control | |
ac11a2b3 | 2347 | * @ucontrol: control element information |
2b97eabc RP |
2348 | * |
2349 | * Callback to get the value of a dapm mixer control. | |
2350 | * | |
2351 | * Returns 0 for success. | |
2352 | */ | |
2353 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2354 | struct snd_ctl_elem_value *ucontrol) | |
2355 | { | |
fafd2176 SW |
2356 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2357 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2358 | struct soc_mixer_control *mc = |
2359 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2360 | unsigned int reg = mc->reg; |
2361 | unsigned int shift = mc->shift; | |
2362 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2363 | int max = mc->max; |
815ecf8d JS |
2364 | unsigned int invert = mc->invert; |
2365 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 2366 | |
2b97eabc RP |
2367 | ucontrol->value.integer.value[0] = |
2368 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
2369 | if (shift != rshift) | |
2370 | ucontrol->value.integer.value[1] = | |
2371 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
2372 | if (invert) { | |
2373 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2374 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2375 | if (shift != rshift) |
2376 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2377 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
2378 | } |
2379 | ||
2380 | return 0; | |
2381 | } | |
2382 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2383 | ||
2384 | /** | |
2385 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2386 | * @kcontrol: mixer control | |
ac11a2b3 | 2387 | * @ucontrol: control element information |
2b97eabc RP |
2388 | * |
2389 | * Callback to set the value of a dapm mixer control. | |
2390 | * | |
2391 | * Returns 0 for success. | |
2392 | */ | |
2393 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2394 | struct snd_ctl_elem_value *ucontrol) | |
2395 | { | |
fafd2176 SW |
2396 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2397 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2398 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2399 | struct snd_soc_card *card = codec->card; |
4eaa9819 JS |
2400 | struct soc_mixer_control *mc = |
2401 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2402 | unsigned int reg = mc->reg; |
2403 | unsigned int shift = mc->shift; | |
4eaa9819 | 2404 | int max = mc->max; |
815ecf8d JS |
2405 | unsigned int mask = (1 << fls(max)) - 1; |
2406 | unsigned int invert = mc->invert; | |
e9cf7049 | 2407 | unsigned int val; |
97404f2e MB |
2408 | int connect, change; |
2409 | struct snd_soc_dapm_update update; | |
fafd2176 | 2410 | int wi; |
2b97eabc RP |
2411 | |
2412 | val = (ucontrol->value.integer.value[0] & mask); | |
2413 | ||
2414 | if (invert) | |
a7a4ac86 | 2415 | val = max - val; |
e9cf7049 | 2416 | mask = mask << shift; |
2b97eabc | 2417 | val = val << shift; |
2b97eabc | 2418 | |
fafd2176 SW |
2419 | if (val) |
2420 | /* new connection */ | |
2421 | connect = invert ? 0 : 1; | |
2422 | else | |
2423 | /* old connection must be powered down */ | |
2424 | connect = invert ? 1 : 0; | |
2425 | ||
3cd04343 | 2426 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
2b97eabc | 2427 | |
e9cf7049 | 2428 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2429 | if (change) { |
fafd2176 SW |
2430 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2431 | widget = wlist->widgets[wi]; | |
283375ce | 2432 | |
fafd2176 | 2433 | widget->value = val; |
97404f2e | 2434 | |
fafd2176 SW |
2435 | update.kcontrol = kcontrol; |
2436 | update.widget = widget; | |
2437 | update.reg = reg; | |
2438 | update.mask = mask; | |
2439 | update.val = val; | |
2440 | widget->dapm->update = &update; | |
97404f2e | 2441 | |
4edbb345 | 2442 | soc_dapm_mixer_update_power(widget, kcontrol, connect); |
fafd2176 SW |
2443 | |
2444 | widget->dapm->update = NULL; | |
2445 | } | |
283375ce MB |
2446 | } |
2447 | ||
a73fb2df | 2448 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2449 | return 0; |
2b97eabc RP |
2450 | } |
2451 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2452 | ||
2453 | /** | |
2454 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2455 | * @kcontrol: mixer control | |
ac11a2b3 | 2456 | * @ucontrol: control element information |
2b97eabc RP |
2457 | * |
2458 | * Callback to get the value of a dapm enumerated double mixer control. | |
2459 | * | |
2460 | * Returns 0 for success. | |
2461 | */ | |
2462 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2463 | struct snd_ctl_elem_value *ucontrol) | |
2464 | { | |
fafd2176 SW |
2465 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2466 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2467 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2468 | unsigned int val, bitmask; |
2b97eabc | 2469 | |
f8ba0b7b | 2470 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
2471 | ; |
2472 | val = snd_soc_read(widget->codec, e->reg); | |
2473 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
2474 | if (e->shift_l != e->shift_r) | |
2475 | ucontrol->value.enumerated.item[1] = | |
2476 | (val >> e->shift_r) & (bitmask - 1); | |
2477 | ||
2478 | return 0; | |
2479 | } | |
2480 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2481 | ||
2482 | /** | |
2483 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2484 | * @kcontrol: mixer control | |
ac11a2b3 | 2485 | * @ucontrol: control element information |
2b97eabc RP |
2486 | * |
2487 | * Callback to set the value of a dapm enumerated double mixer control. | |
2488 | * | |
2489 | * Returns 0 for success. | |
2490 | */ | |
2491 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2492 | struct snd_ctl_elem_value *ucontrol) | |
2493 | { | |
fafd2176 SW |
2494 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2495 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2496 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2497 | struct snd_soc_card *card = codec->card; |
2b97eabc | 2498 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2499 | unsigned int val, mux, change; |
46f5822f | 2500 | unsigned int mask, bitmask; |
97404f2e | 2501 | struct snd_soc_dapm_update update; |
fafd2176 | 2502 | int wi; |
2b97eabc | 2503 | |
f8ba0b7b | 2504 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 2505 | ; |
f8ba0b7b | 2506 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2507 | return -EINVAL; |
2508 | mux = ucontrol->value.enumerated.item[0]; | |
2509 | val = mux << e->shift_l; | |
2510 | mask = (bitmask - 1) << e->shift_l; | |
2511 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2512 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2513 | return -EINVAL; |
2514 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2515 | mask |= (bitmask - 1) << e->shift_r; | |
2516 | } | |
2517 | ||
3cd04343 | 2518 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2519 | |
3a65577d | 2520 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2521 | if (change) { |
2522 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2523 | widget = wlist->widgets[wi]; | |
2524 | ||
2525 | widget->value = val; | |
1642e3d4 | 2526 | |
fafd2176 SW |
2527 | update.kcontrol = kcontrol; |
2528 | update.widget = widget; | |
2529 | update.reg = e->reg; | |
2530 | update.mask = mask; | |
2531 | update.val = val; | |
2532 | widget->dapm->update = &update; | |
1642e3d4 | 2533 | |
4edbb345 | 2534 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1642e3d4 | 2535 | |
fafd2176 SW |
2536 | widget->dapm->update = NULL; |
2537 | } | |
2538 | } | |
2b97eabc | 2539 | |
a73fb2df | 2540 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2541 | return change; |
2b97eabc RP |
2542 | } |
2543 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2544 | ||
d2b247a8 MB |
2545 | /** |
2546 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2547 | * @kcontrol: mixer control | |
2548 | * @ucontrol: control element information | |
2549 | * | |
2550 | * Returns 0 for success. | |
2551 | */ | |
2552 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2553 | struct snd_ctl_elem_value *ucontrol) | |
2554 | { | |
fafd2176 SW |
2555 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2556 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2557 | |
2558 | ucontrol->value.enumerated.item[0] = widget->value; | |
2559 | ||
2560 | return 0; | |
2561 | } | |
2562 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2563 | ||
2564 | /** | |
2565 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2566 | * @kcontrol: mixer control | |
2567 | * @ucontrol: control element information | |
2568 | * | |
2569 | * Returns 0 for success. | |
2570 | */ | |
2571 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2572 | struct snd_ctl_elem_value *ucontrol) | |
2573 | { | |
fafd2176 SW |
2574 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2575 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2576 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2577 | struct snd_soc_card *card = codec->card; |
d2b247a8 MB |
2578 | struct soc_enum *e = |
2579 | (struct soc_enum *)kcontrol->private_value; | |
2580 | int change; | |
2581 | int ret = 0; | |
fafd2176 | 2582 | int wi; |
d2b247a8 MB |
2583 | |
2584 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2585 | return -EINVAL; | |
2586 | ||
3cd04343 | 2587 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d2b247a8 MB |
2588 | |
2589 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2590 | if (change) { |
2591 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2592 | widget = wlist->widgets[wi]; | |
2593 | ||
2594 | widget->value = ucontrol->value.enumerated.item[0]; | |
2595 | ||
4edbb345 | 2596 | soc_dapm_mux_update_power(widget, kcontrol, widget->value, e); |
fafd2176 SW |
2597 | } |
2598 | } | |
d2b247a8 | 2599 | |
a73fb2df | 2600 | mutex_unlock(&card->dapm_mutex); |
d2b247a8 MB |
2601 | return ret; |
2602 | } | |
2603 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2604 | ||
2e72f8e3 PU |
2605 | /** |
2606 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2607 | * callback | |
2608 | * @kcontrol: mixer control | |
2609 | * @ucontrol: control element information | |
2610 | * | |
2611 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2612 | * | |
2613 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2614 | * used for handling bitfield coded enumeration for example. | |
2615 | * | |
2616 | * Returns 0 for success. | |
2617 | */ | |
2618 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2619 | struct snd_ctl_elem_value *ucontrol) | |
2620 | { | |
fafd2176 SW |
2621 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2622 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2623 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2624 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2625 | |
2626 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2627 | val = (reg_val >> e->shift_l) & e->mask; | |
2628 | for (mux = 0; mux < e->max; mux++) { | |
2629 | if (val == e->values[mux]) | |
2630 | break; | |
2631 | } | |
2632 | ucontrol->value.enumerated.item[0] = mux; | |
2633 | if (e->shift_l != e->shift_r) { | |
2634 | val = (reg_val >> e->shift_r) & e->mask; | |
2635 | for (mux = 0; mux < e->max; mux++) { | |
2636 | if (val == e->values[mux]) | |
2637 | break; | |
2638 | } | |
2639 | ucontrol->value.enumerated.item[1] = mux; | |
2640 | } | |
2641 | ||
2642 | return 0; | |
2643 | } | |
2644 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2645 | ||
2646 | /** | |
2647 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2648 | * callback | |
2649 | * @kcontrol: mixer control | |
2650 | * @ucontrol: control element information | |
2651 | * | |
2652 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2653 | * | |
2654 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2655 | * used for handling bitfield coded enumeration for example. | |
2656 | * | |
2657 | * Returns 0 for success. | |
2658 | */ | |
2659 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2660 | struct snd_ctl_elem_value *ucontrol) | |
2661 | { | |
fafd2176 SW |
2662 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2663 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2664 | struct snd_soc_codec *codec = widget->codec; | |
a73fb2df | 2665 | struct snd_soc_card *card = codec->card; |
74155556 | 2666 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2667 | unsigned int val, mux, change; |
46f5822f | 2668 | unsigned int mask; |
97404f2e | 2669 | struct snd_soc_dapm_update update; |
fafd2176 | 2670 | int wi; |
2e72f8e3 PU |
2671 | |
2672 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2673 | return -EINVAL; | |
2674 | mux = ucontrol->value.enumerated.item[0]; | |
2675 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2676 | mask = e->mask << e->shift_l; | |
2677 | if (e->shift_l != e->shift_r) { | |
2678 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2679 | return -EINVAL; | |
2680 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2681 | mask |= e->mask << e->shift_r; | |
2682 | } | |
2683 | ||
3cd04343 | 2684 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
fafd2176 | 2685 | |
3a65577d | 2686 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2687 | if (change) { |
2688 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2689 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2690 | |
fafd2176 | 2691 | widget->value = val; |
1642e3d4 | 2692 | |
fafd2176 SW |
2693 | update.kcontrol = kcontrol; |
2694 | update.widget = widget; | |
2695 | update.reg = e->reg; | |
2696 | update.mask = mask; | |
2697 | update.val = val; | |
2698 | widget->dapm->update = &update; | |
1642e3d4 | 2699 | |
4edbb345 | 2700 | soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
fafd2176 SW |
2701 | |
2702 | widget->dapm->update = NULL; | |
2703 | } | |
2704 | } | |
2e72f8e3 | 2705 | |
a73fb2df | 2706 | mutex_unlock(&card->dapm_mutex); |
97404f2e | 2707 | return change; |
2e72f8e3 PU |
2708 | } |
2709 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2710 | ||
8b37dbd2 MB |
2711 | /** |
2712 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2713 | * | |
2714 | * @kcontrol: mixer control | |
2715 | * @uinfo: control element information | |
2716 | * | |
2717 | * Callback to provide information about a pin switch control. | |
2718 | */ | |
2719 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2720 | struct snd_ctl_elem_info *uinfo) | |
2721 | { | |
2722 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2723 | uinfo->count = 1; | |
2724 | uinfo->value.integer.min = 0; | |
2725 | uinfo->value.integer.max = 1; | |
2726 | ||
2727 | return 0; | |
2728 | } | |
2729 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2730 | ||
2731 | /** | |
2732 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2733 | * | |
2734 | * @kcontrol: mixer control | |
2735 | * @ucontrol: Value | |
2736 | */ | |
2737 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2738 | struct snd_ctl_elem_value *ucontrol) | |
2739 | { | |
48a8c394 | 2740 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2741 | const char *pin = (const char *)kcontrol->private_value; |
2742 | ||
3cd04343 | 2743 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2744 | |
2745 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2746 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2747 | |
a73fb2df | 2748 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 MB |
2749 | |
2750 | return 0; | |
2751 | } | |
2752 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2753 | ||
2754 | /** | |
2755 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2756 | * | |
2757 | * @kcontrol: mixer control | |
2758 | * @ucontrol: Value | |
2759 | */ | |
2760 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2761 | struct snd_ctl_elem_value *ucontrol) | |
2762 | { | |
48a8c394 | 2763 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2764 | const char *pin = (const char *)kcontrol->private_value; |
2765 | ||
3cd04343 | 2766 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
8b37dbd2 MB |
2767 | |
2768 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 2769 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 2770 | else |
48a8c394 | 2771 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 2772 | |
a73fb2df | 2773 | mutex_unlock(&card->dapm_mutex); |
8b37dbd2 | 2774 | |
a73fb2df | 2775 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 MB |
2776 | return 0; |
2777 | } | |
2778 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2779 | ||
5ba06fc9 MB |
2780 | static struct snd_soc_dapm_widget * |
2781 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
2782 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
2783 | { |
2784 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2785 | size_t name_len; |
62ea874a | 2786 | int ret; |
2b97eabc RP |
2787 | |
2788 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 2789 | return NULL; |
2b97eabc | 2790 | |
62ea874a MB |
2791 | switch (w->id) { |
2792 | case snd_soc_dapm_regulator_supply: | |
a3cc056b LG |
2793 | w->regulator = devm_regulator_get(dapm->dev, w->name); |
2794 | if (IS_ERR(w->regulator)) { | |
2795 | ret = PTR_ERR(w->regulator); | |
62ea874a MB |
2796 | dev_err(dapm->dev, "Failed to request %s: %d\n", |
2797 | w->name, ret); | |
5ba06fc9 | 2798 | return NULL; |
62ea874a MB |
2799 | } |
2800 | break; | |
2801 | default: | |
2802 | break; | |
2803 | } | |
2b97eabc | 2804 | |
ead9b919 | 2805 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 2806 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2807 | name_len += 1 + strlen(dapm->codec->name_prefix); |
2808 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2809 | if (w->name == NULL) { | |
2810 | kfree(w); | |
5ba06fc9 | 2811 | return NULL; |
ead9b919 | 2812 | } |
88e8b9a8 | 2813 | if (dapm->codec && dapm->codec->name_prefix) |
888df395 | 2814 | snprintf((char *)w->name, name_len, "%s %s", |
ead9b919 JN |
2815 | dapm->codec->name_prefix, widget->name); |
2816 | else | |
888df395 | 2817 | snprintf((char *)w->name, name_len, "%s", widget->name); |
ead9b919 | 2818 | |
7ca3a18b MB |
2819 | switch (w->id) { |
2820 | case snd_soc_dapm_switch: | |
2821 | case snd_soc_dapm_mixer: | |
2822 | case snd_soc_dapm_mixer_named_ctl: | |
2823 | w->power_check = dapm_generic_check_power; | |
2824 | break; | |
2825 | case snd_soc_dapm_mux: | |
2826 | case snd_soc_dapm_virt_mux: | |
2827 | case snd_soc_dapm_value_mux: | |
2828 | w->power_check = dapm_generic_check_power; | |
2829 | break; | |
2830 | case snd_soc_dapm_adc: | |
2831 | case snd_soc_dapm_aif_out: | |
2832 | w->power_check = dapm_adc_check_power; | |
2833 | break; | |
2834 | case snd_soc_dapm_dac: | |
2835 | case snd_soc_dapm_aif_in: | |
2836 | w->power_check = dapm_dac_check_power; | |
2837 | break; | |
2838 | case snd_soc_dapm_pga: | |
2839 | case snd_soc_dapm_out_drv: | |
2840 | case snd_soc_dapm_input: | |
2841 | case snd_soc_dapm_output: | |
2842 | case snd_soc_dapm_micbias: | |
2843 | case snd_soc_dapm_spk: | |
2844 | case snd_soc_dapm_hp: | |
2845 | case snd_soc_dapm_mic: | |
2846 | case snd_soc_dapm_line: | |
2847 | w->power_check = dapm_generic_check_power; | |
2848 | break; | |
2849 | case snd_soc_dapm_supply: | |
62ea874a | 2850 | case snd_soc_dapm_regulator_supply: |
7ca3a18b MB |
2851 | w->power_check = dapm_supply_check_power; |
2852 | break; | |
888df395 MB |
2853 | case snd_soc_dapm_dai: |
2854 | w->power_check = dapm_dai_check_power; | |
2855 | break; | |
7ca3a18b MB |
2856 | default: |
2857 | w->power_check = dapm_always_on_check_power; | |
2858 | break; | |
2859 | } | |
2860 | ||
97c866de | 2861 | dapm->n_widgets++; |
ce6120cc LG |
2862 | w->dapm = dapm; |
2863 | w->codec = dapm->codec; | |
b7950641 | 2864 | w->platform = dapm->platform; |
2b97eabc RP |
2865 | INIT_LIST_HEAD(&w->sources); |
2866 | INIT_LIST_HEAD(&w->sinks); | |
2867 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 2868 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 2869 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2870 | |
2871 | /* machine layer set ups unconnected pins and insertions */ | |
2872 | w->connected = 1; | |
5ba06fc9 | 2873 | return w; |
2b97eabc | 2874 | } |
2b97eabc | 2875 | |
4ba1327a MB |
2876 | /** |
2877 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2878 | * @dapm: DAPM context |
4ba1327a MB |
2879 | * @widget: widget array |
2880 | * @num: number of widgets | |
2881 | * | |
2882 | * Creates new DAPM controls based upon the templates. | |
2883 | * | |
2884 | * Returns 0 for success else error. | |
2885 | */ | |
ce6120cc | 2886 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2887 | const struct snd_soc_dapm_widget *widget, |
2888 | int num) | |
2889 | { | |
5ba06fc9 MB |
2890 | struct snd_soc_dapm_widget *w; |
2891 | int i; | |
4ba1327a | 2892 | |
a73fb2df | 2893 | mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); |
4ba1327a | 2894 | for (i = 0; i < num; i++) { |
5ba06fc9 MB |
2895 | w = snd_soc_dapm_new_control(dapm, widget); |
2896 | if (!w) { | |
f7d41ae8 | 2897 | dev_err(dapm->dev, |
5ba06fc9 MB |
2898 | "ASoC: Failed to create DAPM control %s\n", |
2899 | widget->name); | |
2900 | return -ENOMEM; | |
b8b33cb5 | 2901 | } |
4ba1327a MB |
2902 | widget++; |
2903 | } | |
a73fb2df | 2904 | mutex_unlock(&dapm->card->dapm_mutex); |
4ba1327a MB |
2905 | return 0; |
2906 | } | |
2907 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2908 | ||
888df395 MB |
2909 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
2910 | struct snd_soc_dai *dai) | |
2b97eabc | 2911 | { |
888df395 | 2912 | struct snd_soc_dapm_widget template; |
2b97eabc RP |
2913 | struct snd_soc_dapm_widget *w; |
2914 | ||
888df395 MB |
2915 | WARN_ON(dapm->dev != dai->dev); |
2916 | ||
2917 | memset(&template, 0, sizeof(template)); | |
2918 | template.reg = SND_SOC_NOPM; | |
2919 | ||
2920 | if (dai->driver->playback.stream_name) { | |
2921 | template.id = snd_soc_dapm_dai; | |
2922 | template.name = dai->driver->playback.stream_name; | |
2923 | template.sname = dai->driver->playback.stream_name; | |
2924 | ||
2925 | dev_dbg(dai->dev, "adding %s widget\n", | |
2926 | template.name); | |
2927 | ||
2928 | w = snd_soc_dapm_new_control(dapm, &template); | |
2929 | if (!w) { | |
2930 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
2931 | dai->driver->playback.stream_name); | |
2932 | } | |
2933 | ||
2934 | w->priv = dai; | |
2935 | dai->playback_widget = w; | |
2936 | } | |
2937 | ||
2938 | if (dai->driver->capture.stream_name) { | |
2939 | template.id = snd_soc_dapm_dai; | |
2940 | template.name = dai->driver->capture.stream_name; | |
2941 | template.sname = dai->driver->capture.stream_name; | |
2942 | ||
2943 | dev_dbg(dai->dev, "adding %s widget\n", | |
2944 | template.name); | |
2945 | ||
2946 | w = snd_soc_dapm_new_control(dapm, &template); | |
2947 | if (!w) { | |
2948 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
2949 | dai->driver->capture.stream_name); | |
2950 | } | |
2951 | ||
2952 | w->priv = dai; | |
2953 | dai->capture_widget = w; | |
2954 | } | |
2955 | ||
2956 | return 0; | |
2957 | } | |
2958 | ||
2959 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
2960 | { | |
2961 | struct snd_soc_dapm_widget *dai_w, *w; | |
2962 | struct snd_soc_dai *dai; | |
2963 | struct snd_soc_dapm_route r; | |
2964 | ||
2965 | memset(&r, 0, sizeof(r)); | |
2966 | ||
2967 | /* For each DAI widget... */ | |
2968 | list_for_each_entry(dai_w, &card->widgets, list) { | |
2969 | if (dai_w->id != snd_soc_dapm_dai) | |
2b97eabc | 2970 | continue; |
888df395 MB |
2971 | |
2972 | dai = dai_w->priv; | |
2973 | ||
2974 | /* ...find all widgets with the same stream and link them */ | |
2975 | list_for_each_entry(w, &card->widgets, list) { | |
2976 | if (w->dapm != dai_w->dapm) | |
2977 | continue; | |
2978 | ||
2979 | if (w->id == snd_soc_dapm_dai) | |
2980 | continue; | |
2981 | ||
2982 | if (!w->sname) | |
2983 | continue; | |
2984 | ||
2985 | if (dai->driver->playback.stream_name && | |
2986 | strstr(w->sname, | |
2987 | dai->driver->playback.stream_name)) { | |
2988 | r.source = dai->playback_widget->name; | |
2989 | r.sink = w->name; | |
2990 | dev_dbg(dai->dev, "%s -> %s\n", | |
2991 | r.source, r.sink); | |
2992 | ||
2993 | snd_soc_dapm_add_route(w->dapm, &r); | |
2994 | } | |
2995 | ||
2996 | if (dai->driver->capture.stream_name && | |
2997 | strstr(w->sname, | |
2998 | dai->driver->capture.stream_name)) { | |
2999 | r.source = w->name; | |
3000 | r.sink = dai->capture_widget->name; | |
3001 | dev_dbg(dai->dev, "%s -> %s\n", | |
3002 | r.source, r.sink); | |
3003 | ||
3004 | snd_soc_dapm_add_route(w->dapm, &r); | |
2b97eabc RP |
3005 | } |
3006 | } | |
3007 | } | |
2b97eabc | 3008 | |
888df395 MB |
3009 | return 0; |
3010 | } | |
64a648c2 | 3011 | |
d9b0951b LG |
3012 | static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3013 | int event) | |
2b97eabc | 3014 | { |
7bd3a6f3 | 3015 | |
d9b0951b LG |
3016 | struct snd_soc_dapm_widget *w_cpu, *w_codec; |
3017 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
3018 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
7bd3a6f3 | 3019 | |
d9b0951b LG |
3020 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
3021 | w_cpu = cpu_dai->playback_widget; | |
3022 | w_codec = codec_dai->playback_widget; | |
3023 | } else { | |
3024 | w_cpu = cpu_dai->capture_widget; | |
3025 | w_codec = codec_dai->capture_widget; | |
3026 | } | |
2b97eabc | 3027 | |
d9b0951b | 3028 | if (w_cpu) { |
fe360685 | 3029 | |
d9b0951b LG |
3030 | dapm_mark_dirty(w_cpu, "stream event"); |
3031 | ||
3032 | switch (event) { | |
3033 | case SND_SOC_DAPM_STREAM_START: | |
3034 | w_cpu->active = 1; | |
3035 | break; | |
3036 | case SND_SOC_DAPM_STREAM_STOP: | |
3037 | w_cpu->active = 0; | |
3038 | break; | |
3039 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3040 | case SND_SOC_DAPM_STREAM_RESUME: | |
3041 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3042 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3043 | break; | |
3044 | } | |
3045 | } | |
3046 | ||
3047 | if (w_codec) { | |
3048 | ||
3049 | dapm_mark_dirty(w_codec, "stream event"); | |
3050 | ||
3051 | switch (event) { | |
3052 | case SND_SOC_DAPM_STREAM_START: | |
3053 | w_codec->active = 1; | |
3054 | break; | |
3055 | case SND_SOC_DAPM_STREAM_STOP: | |
3056 | w_codec->active = 0; | |
3057 | break; | |
3058 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
3059 | case SND_SOC_DAPM_STREAM_RESUME: | |
3060 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
3061 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
3062 | break; | |
3063 | } | |
2b97eabc | 3064 | } |
2b97eabc | 3065 | |
d9b0951b | 3066 | dapm_power_widgets(&rtd->card->dapm, event); |
ce6120cc LG |
3067 | } |
3068 | ||
3069 | /** | |
3070 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
3071 | * @rtd: PCM runtime data | |
3072 | * @stream: stream name | |
3073 | * @event: stream event | |
3074 | * | |
3075 | * Sends a stream event to the dapm core. The core then makes any | |
3076 | * necessary widget power changes. | |
3077 | * | |
3078 | * Returns 0 for success else error. | |
3079 | */ | |
d9b0951b LG |
3080 | void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
3081 | int event) | |
ce6120cc | 3082 | { |
a73fb2df | 3083 | struct snd_soc_card *card = rtd->card; |
ce6120cc | 3084 | |
3cd04343 | 3085 | mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); |
d9b0951b | 3086 | soc_dapm_stream_event(rtd, stream, event); |
a73fb2df | 3087 | mutex_unlock(&card->dapm_mutex); |
2b97eabc | 3088 | } |
2b97eabc RP |
3089 | |
3090 | /** | |
a5302181 | 3091 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3092 | * @dapm: DAPM context |
a5302181 | 3093 | * @pin: pin name |
2b97eabc | 3094 | * |
74b8f955 | 3095 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3096 | * a valid audio route and active audio stream. |
3097 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3098 | * do any widget power switching. | |
2b97eabc | 3099 | */ |
ce6120cc | 3100 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3101 | { |
ce6120cc | 3102 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3103 | } |
3104 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3105 | |
da34183e MB |
3106 | /** |
3107 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3108 | * @dapm: DAPM context |
da34183e MB |
3109 | * @pin: pin name |
3110 | * | |
3111 | * Enables input/output pin regardless of any other state. This is | |
3112 | * intended for use with microphone bias supplies used in microphone | |
3113 | * jack detection. | |
3114 | * | |
3115 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3116 | * do any widget power switching. | |
3117 | */ | |
ce6120cc LG |
3118 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3119 | const char *pin) | |
da34183e | 3120 | { |
91a5fca4 | 3121 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3122 | |
91a5fca4 LPC |
3123 | if (!w) { |
3124 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3125 | return -EINVAL; | |
0d86733c MB |
3126 | } |
3127 | ||
91a5fca4 LPC |
3128 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
3129 | w->connected = 1; | |
3130 | w->force = 1; | |
75c1f891 | 3131 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3132 | |
91a5fca4 | 3133 | return 0; |
da34183e MB |
3134 | } |
3135 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3136 | ||
a5302181 LG |
3137 | /** |
3138 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3139 | * @dapm: DAPM context |
a5302181 LG |
3140 | * @pin: pin name |
3141 | * | |
74b8f955 | 3142 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3143 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3144 | * do any widget power switching. | |
3145 | */ | |
ce6120cc LG |
3146 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3147 | const char *pin) | |
a5302181 | 3148 | { |
ce6120cc | 3149 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3150 | } |
a5302181 | 3151 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3152 | |
5817b52a MB |
3153 | /** |
3154 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3155 | * @dapm: DAPM context |
5817b52a MB |
3156 | * @pin: pin name |
3157 | * | |
3158 | * Marks the specified pin as being not connected, disabling it along | |
3159 | * any parent or child widgets. At present this is identical to | |
3160 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3161 | * additional things such as disabling controls which only affect | |
3162 | * paths through the pin. | |
3163 | * | |
3164 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3165 | * do any widget power switching. | |
3166 | */ | |
ce6120cc | 3167 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3168 | { |
ce6120cc | 3169 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3170 | } |
3171 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3172 | ||
eeec12bf | 3173 | /** |
a5302181 | 3174 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3175 | * @dapm: DAPM context |
a5302181 | 3176 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3177 | * |
a5302181 | 3178 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3179 | * |
a5302181 | 3180 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3181 | */ |
ce6120cc LG |
3182 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3183 | const char *pin) | |
eeec12bf | 3184 | { |
91a5fca4 | 3185 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3186 | |
91a5fca4 LPC |
3187 | if (w) |
3188 | return w->connected; | |
a68b38ad | 3189 | |
eeec12bf GG |
3190 | return 0; |
3191 | } | |
a5302181 | 3192 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3193 | |
1547aba9 MB |
3194 | /** |
3195 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3196 | * @dapm: DAPM context |
1547aba9 MB |
3197 | * @pin: audio signal pin endpoint (or start point) |
3198 | * | |
3199 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3200 | * system is disabled a path between two endpoints flagged as ignoring | |
3201 | * suspend will not be disabled. The path must already be enabled via | |
3202 | * normal means at suspend time, it will not be turned on if it was not | |
3203 | * already enabled. | |
3204 | */ | |
ce6120cc LG |
3205 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3206 | const char *pin) | |
1547aba9 | 3207 | { |
91a5fca4 | 3208 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3209 | |
91a5fca4 LPC |
3210 | if (!w) { |
3211 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3212 | return -EINVAL; | |
1547aba9 MB |
3213 | } |
3214 | ||
91a5fca4 LPC |
3215 | w->ignore_suspend = 1; |
3216 | ||
3217 | return 0; | |
1547aba9 MB |
3218 | } |
3219 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3220 | ||
1633281b SW |
3221 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3222 | struct snd_soc_dapm_widget *w) | |
3223 | { | |
3224 | struct snd_soc_dapm_path *p; | |
3225 | ||
3226 | list_for_each_entry(p, &card->paths, list) { | |
3227 | if ((p->source == w) || (p->sink == w)) { | |
3228 | dev_dbg(card->dev, | |
3229 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3230 | p->source->name, p->source->id, p->source->dapm, | |
3231 | p->sink->name, p->sink->id, p->sink->dapm); | |
3232 | ||
3233 | /* Connected to something other than the codec */ | |
3234 | if (p->source->dapm != p->sink->dapm) | |
3235 | return true; | |
3236 | /* | |
3237 | * Loopback connection from codec external pin to | |
3238 | * codec external pin | |
3239 | */ | |
3240 | if (p->sink->id == snd_soc_dapm_input) { | |
3241 | switch (p->source->id) { | |
3242 | case snd_soc_dapm_output: | |
3243 | case snd_soc_dapm_micbias: | |
3244 | return true; | |
3245 | default: | |
3246 | break; | |
3247 | } | |
3248 | } | |
3249 | } | |
3250 | } | |
3251 | ||
3252 | return false; | |
3253 | } | |
3254 | ||
3255 | /** | |
3256 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3257 | * @codec: The codec whose pins should be processed | |
3258 | * | |
3259 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3260 | * which are unused. Pins are used if they are connected externally to the | |
3261 | * codec, whether that be to some other device, or a loop-back connection to | |
3262 | * the codec itself. | |
3263 | */ | |
3264 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3265 | { | |
3266 | struct snd_soc_card *card = codec->card; | |
3267 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3268 | struct snd_soc_dapm_widget *w; | |
3269 | ||
a094b80b | 3270 | dev_dbg(codec->dev, "Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3271 | &card->dapm, &codec->dapm); |
3272 | ||
3273 | list_for_each_entry(w, &card->widgets, list) { | |
3274 | if (w->dapm != dapm) | |
3275 | continue; | |
3276 | switch (w->id) { | |
3277 | case snd_soc_dapm_input: | |
3278 | case snd_soc_dapm_output: | |
3279 | case snd_soc_dapm_micbias: | |
a094b80b | 3280 | dev_dbg(codec->dev, "Auto NC: Checking widget %s\n", |
1633281b SW |
3281 | w->name); |
3282 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3283 | dev_dbg(codec->dev, |
1633281b SW |
3284 | "... Not in map; disabling\n"); |
3285 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3286 | } | |
3287 | break; | |
3288 | default: | |
3289 | break; | |
3290 | } | |
3291 | } | |
3292 | } | |
3293 | ||
2b97eabc RP |
3294 | /** |
3295 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3296 | * @dapm: DAPM context |
2b97eabc RP |
3297 | * |
3298 | * Free all dapm widgets and resources. | |
3299 | */ | |
ce6120cc | 3300 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3301 | { |
ce6120cc | 3302 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3303 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3304 | dapm_free_widgets(dapm); |
7be31be8 | 3305 | list_del(&dapm->list); |
2b97eabc RP |
3306 | } |
3307 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3308 | ||
ce6120cc | 3309 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3310 | { |
51737470 MB |
3311 | struct snd_soc_dapm_widget *w; |
3312 | LIST_HEAD(down_list); | |
3313 | int powerdown = 0; | |
3314 | ||
97c866de JN |
3315 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3316 | if (w->dapm != dapm) | |
3317 | continue; | |
51737470 | 3318 | if (w->power) { |
828a842f | 3319 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3320 | w->power = 0; |
51737470 MB |
3321 | powerdown = 1; |
3322 | } | |
3323 | } | |
3324 | ||
3325 | /* If there were no widgets to power down we're already in | |
3326 | * standby. | |
3327 | */ | |
3328 | if (powerdown) { | |
7679e42e MB |
3329 | if (dapm->bias_level == SND_SOC_BIAS_ON) |
3330 | snd_soc_dapm_set_bias_level(dapm, | |
3331 | SND_SOC_BIAS_PREPARE); | |
828a842f | 3332 | dapm_seq_run(dapm, &down_list, 0, false); |
7679e42e MB |
3333 | if (dapm->bias_level == SND_SOC_BIAS_PREPARE) |
3334 | snd_soc_dapm_set_bias_level(dapm, | |
3335 | SND_SOC_BIAS_STANDBY); | |
51737470 | 3336 | } |
f0fba2ad LG |
3337 | } |
3338 | ||
3339 | /* | |
3340 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3341 | */ | |
3342 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3343 | { | |
3344 | struct snd_soc_codec *codec; | |
3345 | ||
ce6120cc LG |
3346 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
3347 | soc_dapm_shutdown_codec(&codec->dapm); | |
7679e42e MB |
3348 | if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) |
3349 | snd_soc_dapm_set_bias_level(&codec->dapm, | |
3350 | SND_SOC_BIAS_OFF); | |
ce6120cc | 3351 | } |
51737470 MB |
3352 | } |
3353 | ||
2b97eabc | 3354 | /* Module information */ |
d331124d | 3355 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3356 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3357 | MODULE_LICENSE("GPL"); |