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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 RP |
16 | * o Platform power domain - can support external components i.e. amps and |
17 | * mic/meadphone insertion events. | |
18 | * o Automatic Mic Bias support | |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
3a4fa0a2 | 21 | * o Delayed powerdown of audio susbsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
24 | * Todo: | |
25 | * o DAPM power change sequencing - allow for configurable per | |
26 | * codec sequences. | |
27 | * o Support for analogue bias optimisation. | |
28 | * o Support for reduced codec oversampling rates. | |
29 | * o Support for reduced codec bias currents. | |
30 | */ | |
31 | ||
32 | #include <linux/module.h> | |
33 | #include <linux/moduleparam.h> | |
34 | #include <linux/init.h> | |
9d0624a7 | 35 | #include <linux/async.h> |
2b97eabc RP |
36 | #include <linux/delay.h> |
37 | #include <linux/pm.h> | |
38 | #include <linux/bitops.h> | |
39 | #include <linux/platform_device.h> | |
40 | #include <linux/jiffies.h> | |
20496ff3 | 41 | #include <linux/debugfs.h> |
5a0e3ad6 | 42 | #include <linux/slab.h> |
2b97eabc RP |
43 | #include <sound/core.h> |
44 | #include <sound/pcm.h> | |
45 | #include <sound/pcm_params.h> | |
ce6120cc | 46 | #include <sound/soc.h> |
2b97eabc RP |
47 | #include <sound/initval.h> |
48 | ||
84e90930 MB |
49 | #include <trace/events/asoc.h> |
50 | ||
de02d078 MB |
51 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
52 | ||
2b97eabc RP |
53 | /* dapm power sequences - make this per codec in the future */ |
54 | static int dapm_up_seq[] = { | |
38357ab2 MB |
55 | [snd_soc_dapm_pre] = 0, |
56 | [snd_soc_dapm_supply] = 1, | |
57 | [snd_soc_dapm_micbias] = 2, | |
010ff262 MB |
58 | [snd_soc_dapm_aif_in] = 3, |
59 | [snd_soc_dapm_aif_out] = 3, | |
60 | [snd_soc_dapm_mic] = 4, | |
61 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 62 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
63 | [snd_soc_dapm_value_mux] = 5, |
64 | [snd_soc_dapm_dac] = 6, | |
65 | [snd_soc_dapm_mixer] = 7, | |
66 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
67 | [snd_soc_dapm_pga] = 8, | |
68 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 69 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
70 | [snd_soc_dapm_hp] = 10, |
71 | [snd_soc_dapm_spk] = 10, | |
72 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 73 | }; |
ca9c1aae | 74 | |
2b97eabc | 75 | static int dapm_down_seq[] = { |
38357ab2 MB |
76 | [snd_soc_dapm_pre] = 0, |
77 | [snd_soc_dapm_adc] = 1, | |
78 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 79 | [snd_soc_dapm_spk] = 2, |
d88429a6 | 80 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
81 | [snd_soc_dapm_pga] = 4, |
82 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
83 | [snd_soc_dapm_mixer] = 5, |
84 | [snd_soc_dapm_dac] = 6, | |
85 | [snd_soc_dapm_mic] = 7, | |
86 | [snd_soc_dapm_micbias] = 8, | |
87 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 88 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 89 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
90 | [snd_soc_dapm_aif_in] = 10, |
91 | [snd_soc_dapm_aif_out] = 10, | |
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 | ||
2b97eabc | 122 | /* create a new dapm widget */ |
88cb4290 | 123 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
124 | const struct snd_soc_dapm_widget *_widget) |
125 | { | |
88cb4290 | 126 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
127 | } |
128 | ||
4805608a LG |
129 | /* get snd_card from DAPM context */ |
130 | static inline struct snd_card *dapm_get_snd_card( | |
131 | struct snd_soc_dapm_context *dapm) | |
132 | { | |
133 | if (dapm->codec) | |
134 | return dapm->codec->card->snd_card; | |
135 | else if (dapm->platform) | |
136 | return dapm->platform->card->snd_card; | |
137 | else | |
138 | BUG(); | |
139 | ||
140 | /* unreachable */ | |
141 | return NULL; | |
142 | } | |
143 | ||
144 | /* get soc_card from DAPM context */ | |
145 | static inline struct snd_soc_card *dapm_get_soc_card( | |
146 | struct snd_soc_dapm_context *dapm) | |
147 | { | |
148 | if (dapm->codec) | |
149 | return dapm->codec->card; | |
150 | else if (dapm->platform) | |
151 | return dapm->platform->card; | |
152 | else | |
153 | BUG(); | |
154 | ||
155 | /* unreachable */ | |
156 | return NULL; | |
157 | } | |
158 | ||
0445bdf4 LG |
159 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
160 | { | |
161 | if (w->codec) | |
162 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
163 | else if (w->platform) |
164 | return snd_soc_platform_read(w->platform, reg); | |
165 | ||
166 | dev_err(w->dapm->dev, "no valid widget read method\n"); | |
167 | return -1; | |
0445bdf4 LG |
168 | } |
169 | ||
170 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
171 | { | |
172 | if (w->codec) | |
173 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
174 | else if (w->platform) |
175 | return snd_soc_platform_write(w->platform, reg, val); | |
176 | ||
177 | dev_err(w->dapm->dev, "no valid widget write method\n"); | |
178 | return -1; | |
0445bdf4 LG |
179 | } |
180 | ||
181 | static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, | |
182 | unsigned short reg, unsigned int mask, unsigned int value) | |
183 | { | |
184 | int change; | |
185 | unsigned int old, new; | |
186 | int ret; | |
187 | ||
188 | ret = soc_widget_read(w, reg); | |
189 | if (ret < 0) | |
190 | return ret; | |
191 | ||
192 | old = ret; | |
193 | new = (old & ~mask) | (value & mask); | |
194 | change = old != new; | |
195 | if (change) { | |
196 | ret = soc_widget_write(w, reg, new); | |
197 | if (ret < 0) | |
198 | return ret; | |
199 | } | |
200 | ||
201 | return change; | |
202 | } | |
203 | ||
452c5eaa MB |
204 | /** |
205 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 206 | * @dapm: DAPM context |
452c5eaa MB |
207 | * @level: level to configure |
208 | * | |
209 | * Configure the bias (power) levels for the SoC audio device. | |
210 | * | |
211 | * Returns 0 for success else error. | |
212 | */ | |
ed5a4c47 | 213 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 214 | enum snd_soc_bias_level level) |
452c5eaa | 215 | { |
ed5a4c47 | 216 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
217 | int ret = 0; |
218 | ||
84e90930 MB |
219 | trace_snd_soc_bias_level_start(card, level); |
220 | ||
f0fba2ad | 221 | if (card && card->set_bias_level) |
d4c6005f | 222 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
223 | if (ret != 0) |
224 | goto out; | |
225 | ||
cc4c670a MB |
226 | if (dapm->codec) { |
227 | if (dapm->codec->driver->set_bias_level) | |
228 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
229 | level); | |
230 | else | |
231 | dapm->bias_level = level; | |
232 | } | |
171ec6b0 MB |
233 | if (ret != 0) |
234 | goto out; | |
235 | ||
236 | if (card && card->set_bias_level_post) | |
d4c6005f | 237 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 238 | out: |
84e90930 MB |
239 | trace_snd_soc_bias_level_done(card, level); |
240 | ||
452c5eaa MB |
241 | return ret; |
242 | } | |
243 | ||
2b97eabc RP |
244 | /* set up initial codec paths */ |
245 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
246 | struct snd_soc_dapm_path *p, int i) | |
247 | { | |
248 | switch (w->id) { | |
249 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
250 | case snd_soc_dapm_mixer: |
251 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 252 | int val; |
4eaa9819 | 253 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 254 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
255 | unsigned int reg = mc->reg; |
256 | unsigned int shift = mc->shift; | |
4eaa9819 | 257 | int max = mc->max; |
815ecf8d JS |
258 | unsigned int mask = (1 << fls(max)) - 1; |
259 | unsigned int invert = mc->invert; | |
2b97eabc | 260 | |
0445bdf4 | 261 | val = soc_widget_read(w, reg); |
2b97eabc RP |
262 | val = (val >> shift) & mask; |
263 | ||
264 | if ((invert && !val) || (!invert && val)) | |
265 | p->connect = 1; | |
266 | else | |
267 | p->connect = 0; | |
268 | } | |
269 | break; | |
270 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
271 | struct soc_enum *e = (struct soc_enum *) |
272 | w->kcontrol_news[i].private_value; | |
2b97eabc RP |
273 | int val, item, bitmask; |
274 | ||
f8ba0b7b | 275 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
88d96086 | 276 | ; |
0445bdf4 | 277 | val = soc_widget_read(w, e->reg); |
2b97eabc RP |
278 | item = (val >> e->shift_l) & (bitmask - 1); |
279 | ||
280 | p->connect = 0; | |
f8ba0b7b | 281 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
282 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
283 | p->connect = 1; | |
284 | } | |
285 | } | |
286 | break; | |
24ff33ac | 287 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
288 | struct soc_enum *e = (struct soc_enum *) |
289 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
290 | |
291 | p->connect = 0; | |
292 | /* since a virtual mux has no backing registers to | |
293 | * decide which path to connect, it will try to match | |
294 | * with the first enumeration. This is to ensure | |
295 | * that the default mux choice (the first) will be | |
296 | * correctly powered up during initialization. | |
297 | */ | |
298 | if (!strcmp(p->name, e->texts[0])) | |
299 | p->connect = 1; | |
300 | } | |
301 | break; | |
2e72f8e3 | 302 | case snd_soc_dapm_value_mux: { |
74155556 | 303 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 304 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
305 | int val, item; |
306 | ||
0445bdf4 | 307 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
308 | val = (val >> e->shift_l) & e->mask; |
309 | for (item = 0; item < e->max; item++) { | |
310 | if (val == e->values[item]) | |
311 | break; | |
312 | } | |
313 | ||
314 | p->connect = 0; | |
315 | for (i = 0; i < e->max; i++) { | |
316 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
317 | p->connect = 1; | |
318 | } | |
319 | } | |
320 | break; | |
2b97eabc RP |
321 | /* does not effect routing - always connected */ |
322 | case snd_soc_dapm_pga: | |
d88429a6 | 323 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
324 | case snd_soc_dapm_output: |
325 | case snd_soc_dapm_adc: | |
326 | case snd_soc_dapm_input: | |
327 | case snd_soc_dapm_dac: | |
328 | case snd_soc_dapm_micbias: | |
329 | case snd_soc_dapm_vmid: | |
246d0a17 | 330 | case snd_soc_dapm_supply: |
010ff262 MB |
331 | case snd_soc_dapm_aif_in: |
332 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
333 | p->connect = 1; |
334 | break; | |
335 | /* does effect routing - dynamically connected */ | |
336 | case snd_soc_dapm_hp: | |
337 | case snd_soc_dapm_mic: | |
338 | case snd_soc_dapm_spk: | |
339 | case snd_soc_dapm_line: | |
340 | case snd_soc_dapm_pre: | |
341 | case snd_soc_dapm_post: | |
342 | p->connect = 0; | |
343 | break; | |
344 | } | |
345 | } | |
346 | ||
74b8f955 | 347 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 348 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
349 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
350 | struct snd_soc_dapm_path *path, const char *control_name, | |
351 | const struct snd_kcontrol_new *kcontrol) | |
352 | { | |
353 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
354 | int i; | |
355 | ||
f8ba0b7b | 356 | for (i = 0; i < e->max; i++) { |
2b97eabc | 357 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 358 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
359 | list_add(&path->list_sink, &dest->sources); |
360 | list_add(&path->list_source, &src->sinks); | |
361 | path->name = (char*)e->texts[i]; | |
362 | dapm_set_path_status(dest, path, 0); | |
363 | return 0; | |
364 | } | |
365 | } | |
366 | ||
367 | return -ENODEV; | |
368 | } | |
369 | ||
74b8f955 | 370 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 371 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
372 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
373 | struct snd_soc_dapm_path *path, const char *control_name) | |
374 | { | |
375 | int i; | |
376 | ||
377 | /* search for mixer kcontrol */ | |
378 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 379 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 380 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
381 | list_add(&path->list_sink, &dest->sources); |
382 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 383 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
384 | dapm_set_path_status(dest, path, i); |
385 | return 0; | |
386 | } | |
387 | } | |
388 | return -ENODEV; | |
389 | } | |
390 | ||
af46800b | 391 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 392 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
393 | const struct snd_kcontrol_new *kcontrol_new, |
394 | struct snd_kcontrol **kcontrol) | |
395 | { | |
396 | struct snd_soc_dapm_widget *w; | |
397 | int i; | |
398 | ||
399 | *kcontrol = NULL; | |
400 | ||
401 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
402 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
403 | continue; | |
af46800b SW |
404 | for (i = 0; i < w->num_kcontrols; i++) { |
405 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
406 | if (w->kcontrols) | |
407 | *kcontrol = w->kcontrols[i]; | |
408 | return 1; | |
409 | } | |
410 | } | |
411 | } | |
412 | ||
413 | return 0; | |
414 | } | |
415 | ||
2b97eabc | 416 | /* create new dapm mixer control */ |
4b80b8c2 | 417 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
2b97eabc | 418 | { |
4b80b8c2 | 419 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc | 420 | int i, ret = 0; |
3e5ff4df | 421 | size_t name_len, prefix_len; |
2b97eabc | 422 | struct snd_soc_dapm_path *path; |
12ea2c78 | 423 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 424 | const char *prefix; |
fafd2176 SW |
425 | struct snd_soc_dapm_widget_list *wlist; |
426 | size_t wlistsize; | |
efb7ac3f MB |
427 | |
428 | if (dapm->codec) | |
429 | prefix = dapm->codec->name_prefix; | |
430 | else | |
431 | prefix = NULL; | |
2b97eabc | 432 | |
3e5ff4df MB |
433 | if (prefix) |
434 | prefix_len = strlen(prefix) + 1; | |
435 | else | |
436 | prefix_len = 0; | |
437 | ||
2b97eabc RP |
438 | /* add kcontrol */ |
439 | for (i = 0; i < w->num_kcontrols; i++) { | |
440 | ||
441 | /* match name */ | |
442 | list_for_each_entry(path, &w->sources, list_sink) { | |
443 | ||
444 | /* mixer/mux paths name must match control name */ | |
82cfecdc | 445 | if (path->name != (char *)w->kcontrol_news[i].name) |
2b97eabc RP |
446 | continue; |
447 | ||
82cd8764 LPC |
448 | if (w->kcontrols[i]) { |
449 | path->kcontrol = w->kcontrols[i]; | |
450 | continue; | |
451 | } | |
452 | ||
fafd2176 SW |
453 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
454 | sizeof(struct snd_soc_dapm_widget *), | |
455 | wlist = kzalloc(wlistsize, GFP_KERNEL); | |
456 | if (wlist == NULL) { | |
457 | dev_err(dapm->dev, | |
458 | "asoc: can't allocate widget list for %s\n", | |
459 | w->name); | |
460 | return -ENOMEM; | |
461 | } | |
462 | wlist->num_widgets = 1; | |
463 | wlist->widgets[0] = w; | |
464 | ||
ca9c1aae IM |
465 | /* add dapm control with long name. |
466 | * for dapm_mixer this is the concatenation of the | |
467 | * mixer and kcontrol name. | |
468 | * for dapm_mixer_named_ctl this is simply the | |
469 | * kcontrol name. | |
470 | */ | |
82cfecdc | 471 | name_len = strlen(w->kcontrol_news[i].name) + 1; |
07495f3e | 472 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
473 | name_len += 1 + strlen(w->name); |
474 | ||
219b93f5 | 475 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 476 | |
fafd2176 SW |
477 | if (path->long_name == NULL) { |
478 | kfree(wlist); | |
2b97eabc | 479 | return -ENOMEM; |
fafd2176 | 480 | } |
2b97eabc | 481 | |
ca9c1aae | 482 | switch (w->id) { |
ca9c1aae | 483 | default: |
3e5ff4df MB |
484 | /* The control will get a prefix from |
485 | * the control creation process but | |
486 | * we're also using the same prefix | |
487 | * for widgets so cut the prefix off | |
488 | * the front of the widget name. | |
489 | */ | |
ca9c1aae | 490 | snprintf(path->long_name, name_len, "%s %s", |
3e5ff4df | 491 | w->name + prefix_len, |
82cfecdc | 492 | w->kcontrol_news[i].name); |
07495f3e | 493 | break; |
ca9c1aae IM |
494 | case snd_soc_dapm_mixer_named_ctl: |
495 | snprintf(path->long_name, name_len, "%s", | |
82cfecdc | 496 | w->kcontrol_news[i].name); |
07495f3e | 497 | break; |
ca9c1aae IM |
498 | } |
499 | ||
219b93f5 MB |
500 | path->long_name[name_len - 1] = '\0'; |
501 | ||
fafd2176 SW |
502 | path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], |
503 | wlist, path->long_name, | |
504 | prefix); | |
ce6120cc | 505 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 506 | if (ret < 0) { |
f7d41ae8 JN |
507 | dev_err(dapm->dev, |
508 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
509 | path->long_name, ret); | |
fafd2176 | 510 | kfree(wlist); |
2b97eabc RP |
511 | kfree(path->long_name); |
512 | path->long_name = NULL; | |
513 | return ret; | |
514 | } | |
fad59888 | 515 | w->kcontrols[i] = path->kcontrol; |
2b97eabc RP |
516 | } |
517 | } | |
518 | return ret; | |
519 | } | |
520 | ||
521 | /* create new dapm mux control */ | |
4b80b8c2 | 522 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 523 | { |
4b80b8c2 | 524 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc RP |
525 | struct snd_soc_dapm_path *path = NULL; |
526 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 527 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 528 | const char *prefix; |
3e5ff4df | 529 | size_t prefix_len; |
af46800b | 530 | int ret; |
fafd2176 | 531 | struct snd_soc_dapm_widget_list *wlist; |
af46800b | 532 | int shared, wlistentries; |
fafd2176 | 533 | size_t wlistsize; |
af46800b | 534 | char *name; |
2b97eabc | 535 | |
af46800b SW |
536 | if (w->num_kcontrols != 1) { |
537 | dev_err(dapm->dev, | |
538 | "asoc: mux %s has incorrect number of controls\n", | |
539 | w->name); | |
2b97eabc RP |
540 | return -EINVAL; |
541 | } | |
542 | ||
1007da06 | 543 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b SW |
544 | &kcontrol); |
545 | if (kcontrol) { | |
546 | wlist = kcontrol->private_data; | |
547 | wlistentries = wlist->num_widgets + 1; | |
548 | } else { | |
549 | wlist = NULL; | |
550 | wlistentries = 1; | |
551 | } | |
fafd2176 | 552 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b SW |
553 | wlistentries * sizeof(struct snd_soc_dapm_widget *), |
554 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
fafd2176 SW |
555 | if (wlist == NULL) { |
556 | dev_err(dapm->dev, | |
557 | "asoc: can't allocate widget list for %s\n", w->name); | |
558 | return -ENOMEM; | |
559 | } | |
af46800b SW |
560 | wlist->num_widgets = wlistentries; |
561 | wlist->widgets[wlistentries - 1] = w; | |
efb7ac3f | 562 | |
af46800b SW |
563 | if (!kcontrol) { |
564 | if (dapm->codec) | |
565 | prefix = dapm->codec->name_prefix; | |
566 | else | |
567 | prefix = NULL; | |
568 | ||
569 | if (shared) { | |
570 | name = w->kcontrol_news[0].name; | |
571 | prefix_len = 0; | |
572 | } else { | |
573 | name = w->name; | |
574 | if (prefix) | |
575 | prefix_len = strlen(prefix) + 1; | |
576 | else | |
577 | prefix_len = 0; | |
578 | } | |
3e5ff4df | 579 | |
af46800b SW |
580 | /* |
581 | * The control will get a prefix from the control creation | |
582 | * process but we're also using the same prefix for widgets so | |
583 | * cut the prefix off the front of the widget name. | |
584 | */ | |
585 | kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, | |
586 | name + prefix_len, prefix); | |
587 | ret = snd_ctl_add(card, kcontrol); | |
588 | if (ret < 0) { | |
53daf208 MB |
589 | dev_err(dapm->dev, "failed to add kcontrol %s: %d\n", |
590 | w->name, ret); | |
af46800b SW |
591 | kfree(wlist); |
592 | return ret; | |
593 | } | |
594 | } | |
ce6120cc | 595 | |
af46800b | 596 | kcontrol->private_data = wlist; |
2b97eabc | 597 | |
fad59888 SW |
598 | w->kcontrols[0] = kcontrol; |
599 | ||
2b97eabc RP |
600 | list_for_each_entry(path, &w->sources, list_sink) |
601 | path->kcontrol = kcontrol; | |
602 | ||
af46800b | 603 | return 0; |
2b97eabc RP |
604 | } |
605 | ||
606 | /* create new dapm volume control */ | |
4b80b8c2 | 607 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 608 | { |
a6c65736 | 609 | if (w->num_kcontrols) |
f7d41ae8 JN |
610 | dev_err(w->dapm->dev, |
611 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 612 | |
a6c65736 | 613 | return 0; |
2b97eabc RP |
614 | } |
615 | ||
616 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 617 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
618 | { |
619 | struct snd_soc_dapm_path *p; | |
620 | ||
8ddab3f5 | 621 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
622 | p->walked = 0; |
623 | } | |
624 | ||
9949788b MB |
625 | /* We implement power down on suspend by checking the power state of |
626 | * the ALSA card - when we are suspending the ALSA state for the card | |
627 | * is set to D3. | |
628 | */ | |
629 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
630 | { | |
12ea2c78 | 631 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 632 | |
f0fba2ad | 633 | switch (level) { |
9949788b MB |
634 | case SNDRV_CTL_POWER_D3hot: |
635 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 636 | if (widget->ignore_suspend) |
f7d41ae8 JN |
637 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
638 | widget->name); | |
1547aba9 | 639 | return widget->ignore_suspend; |
9949788b MB |
640 | default: |
641 | return 1; | |
642 | } | |
643 | } | |
644 | ||
2b97eabc RP |
645 | /* |
646 | * Recursively check for a completed path to an active or physically connected | |
647 | * output widget. Returns number of complete paths. | |
648 | */ | |
649 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
650 | { | |
651 | struct snd_soc_dapm_path *path; | |
652 | int con = 0; | |
653 | ||
de02d078 MB |
654 | DAPM_UPDATE_STAT(widget, path_checks); |
655 | ||
246d0a17 MB |
656 | if (widget->id == snd_soc_dapm_supply) |
657 | return 0; | |
658 | ||
010ff262 MB |
659 | switch (widget->id) { |
660 | case snd_soc_dapm_adc: | |
661 | case snd_soc_dapm_aif_out: | |
662 | if (widget->active) | |
9949788b | 663 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
664 | default: |
665 | break; | |
666 | } | |
2b97eabc RP |
667 | |
668 | if (widget->connected) { | |
669 | /* connected pin ? */ | |
670 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 671 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
672 | |
673 | /* connected jack or spk ? */ | |
674 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 675 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 676 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
677 | } |
678 | ||
679 | list_for_each_entry(path, &widget->sinks, list_source) { | |
bf3a9e13 MB |
680 | if (path->weak) |
681 | continue; | |
682 | ||
2b97eabc RP |
683 | if (path->walked) |
684 | continue; | |
685 | ||
686 | if (path->sink && path->connect) { | |
687 | path->walked = 1; | |
688 | con += is_connected_output_ep(path->sink); | |
689 | } | |
690 | } | |
691 | ||
692 | return con; | |
693 | } | |
694 | ||
695 | /* | |
696 | * Recursively check for a completed path to an active or physically connected | |
697 | * input widget. Returns number of complete paths. | |
698 | */ | |
699 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
700 | { | |
701 | struct snd_soc_dapm_path *path; | |
702 | int con = 0; | |
703 | ||
de02d078 MB |
704 | DAPM_UPDATE_STAT(widget, path_checks); |
705 | ||
246d0a17 MB |
706 | if (widget->id == snd_soc_dapm_supply) |
707 | return 0; | |
708 | ||
2b97eabc | 709 | /* active stream ? */ |
010ff262 MB |
710 | switch (widget->id) { |
711 | case snd_soc_dapm_dac: | |
712 | case snd_soc_dapm_aif_in: | |
713 | if (widget->active) | |
9949788b | 714 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
715 | default: |
716 | break; | |
717 | } | |
2b97eabc RP |
718 | |
719 | if (widget->connected) { | |
720 | /* connected pin ? */ | |
721 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 722 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
723 | |
724 | /* connected VMID/Bias for lower pops */ | |
725 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 726 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
727 | |
728 | /* connected jack ? */ | |
eaeae5d9 PU |
729 | if (widget->id == snd_soc_dapm_mic || |
730 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 731 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
732 | } |
733 | ||
734 | list_for_each_entry(path, &widget->sources, list_sink) { | |
bf3a9e13 MB |
735 | if (path->weak) |
736 | continue; | |
737 | ||
2b97eabc RP |
738 | if (path->walked) |
739 | continue; | |
740 | ||
741 | if (path->source && path->connect) { | |
742 | path->walked = 1; | |
743 | con += is_connected_input_ep(path->source); | |
744 | } | |
745 | } | |
746 | ||
747 | return con; | |
748 | } | |
749 | ||
e2be2ccf JN |
750 | /* |
751 | * Handler for generic register modifier widget. | |
752 | */ | |
753 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
754 | struct snd_kcontrol *kcontrol, int event) | |
755 | { | |
756 | unsigned int val; | |
757 | ||
758 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
759 | val = w->on_val; | |
760 | else | |
761 | val = w->off_val; | |
762 | ||
0445bdf4 | 763 | soc_widget_update_bits(w, -(w->reg + 1), |
e2be2ccf JN |
764 | w->mask << w->shift, val << w->shift); |
765 | ||
766 | return 0; | |
767 | } | |
11589418 | 768 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 769 | |
cd0f2d47 MB |
770 | /* Generic check to see if a widget should be powered. |
771 | */ | |
772 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
773 | { | |
774 | int in, out; | |
775 | ||
de02d078 MB |
776 | DAPM_UPDATE_STAT(w, power_checks); |
777 | ||
cd0f2d47 | 778 | in = is_connected_input_ep(w); |
ce6120cc | 779 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 780 | out = is_connected_output_ep(w); |
ce6120cc | 781 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
782 | return out != 0 && in != 0; |
783 | } | |
784 | ||
6ea31b9f MB |
785 | /* Check to see if an ADC has power */ |
786 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
787 | { | |
788 | int in; | |
789 | ||
de02d078 MB |
790 | DAPM_UPDATE_STAT(w, power_checks); |
791 | ||
6ea31b9f MB |
792 | if (w->active) { |
793 | in = is_connected_input_ep(w); | |
ce6120cc | 794 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
795 | return in != 0; |
796 | } else { | |
797 | return dapm_generic_check_power(w); | |
798 | } | |
799 | } | |
800 | ||
801 | /* Check to see if a DAC has power */ | |
802 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
803 | { | |
804 | int out; | |
805 | ||
de02d078 MB |
806 | DAPM_UPDATE_STAT(w, power_checks); |
807 | ||
6ea31b9f MB |
808 | if (w->active) { |
809 | out = is_connected_output_ep(w); | |
ce6120cc | 810 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
811 | return out != 0; |
812 | } else { | |
813 | return dapm_generic_check_power(w); | |
814 | } | |
815 | } | |
816 | ||
246d0a17 MB |
817 | /* Check to see if a power supply is needed */ |
818 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
819 | { | |
820 | struct snd_soc_dapm_path *path; | |
821 | int power = 0; | |
822 | ||
de02d078 MB |
823 | DAPM_UPDATE_STAT(w, power_checks); |
824 | ||
246d0a17 MB |
825 | /* Check if one of our outputs is connected */ |
826 | list_for_each_entry(path, &w->sinks, list_source) { | |
bf3a9e13 MB |
827 | if (path->weak) |
828 | continue; | |
829 | ||
215edda3 MB |
830 | if (path->connected && |
831 | !path->connected(path->source, path->sink)) | |
832 | continue; | |
833 | ||
3017358a MB |
834 | if (!path->sink) |
835 | continue; | |
836 | ||
837 | if (path->sink->force) { | |
838 | power = 1; | |
839 | break; | |
840 | } | |
841 | ||
842 | if (path->sink->power_check && | |
246d0a17 MB |
843 | path->sink->power_check(path->sink)) { |
844 | power = 1; | |
845 | break; | |
846 | } | |
847 | } | |
848 | ||
ce6120cc | 849 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
850 | |
851 | return power; | |
852 | } | |
853 | ||
38357ab2 MB |
854 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
855 | struct snd_soc_dapm_widget *b, | |
828a842f | 856 | bool power_up) |
42aa3418 | 857 | { |
828a842f MB |
858 | int *sort; |
859 | ||
860 | if (power_up) | |
861 | sort = dapm_up_seq; | |
862 | else | |
863 | sort = dapm_down_seq; | |
864 | ||
38357ab2 MB |
865 | if (sort[a->id] != sort[b->id]) |
866 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
867 | if (a->subseq != b->subseq) { |
868 | if (power_up) | |
869 | return a->subseq - b->subseq; | |
870 | else | |
871 | return b->subseq - a->subseq; | |
872 | } | |
b22ead2a MB |
873 | if (a->reg != b->reg) |
874 | return a->reg - b->reg; | |
84dab567 MB |
875 | if (a->dapm != b->dapm) |
876 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 877 | |
38357ab2 MB |
878 | return 0; |
879 | } | |
42aa3418 | 880 | |
38357ab2 MB |
881 | /* Insert a widget in order into a DAPM power sequence. */ |
882 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
883 | struct list_head *list, | |
828a842f | 884 | bool power_up) |
38357ab2 MB |
885 | { |
886 | struct snd_soc_dapm_widget *w; | |
887 | ||
888 | list_for_each_entry(w, list, power_list) | |
828a842f | 889 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
890 | list_add_tail(&new_widget->power_list, &w->power_list); |
891 | return; | |
892 | } | |
893 | ||
894 | list_add_tail(&new_widget->power_list, list); | |
895 | } | |
896 | ||
68f89ad8 MB |
897 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
898 | struct snd_soc_dapm_widget *w, int event) | |
899 | { | |
900 | struct snd_soc_card *card = dapm->card; | |
901 | const char *ev_name; | |
902 | int power, ret; | |
903 | ||
904 | switch (event) { | |
905 | case SND_SOC_DAPM_PRE_PMU: | |
906 | ev_name = "PRE_PMU"; | |
907 | power = 1; | |
908 | break; | |
909 | case SND_SOC_DAPM_POST_PMU: | |
910 | ev_name = "POST_PMU"; | |
911 | power = 1; | |
912 | break; | |
913 | case SND_SOC_DAPM_PRE_PMD: | |
914 | ev_name = "PRE_PMD"; | |
915 | power = 0; | |
916 | break; | |
917 | case SND_SOC_DAPM_POST_PMD: | |
918 | ev_name = "POST_PMD"; | |
919 | power = 0; | |
920 | break; | |
921 | default: | |
922 | BUG(); | |
923 | return; | |
924 | } | |
925 | ||
926 | if (w->power != power) | |
927 | return; | |
928 | ||
929 | if (w->event && (w->event_flags & event)) { | |
930 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
931 | w->name, ev_name); | |
84e90930 | 932 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 933 | ret = w->event(w, NULL, event); |
84e90930 | 934 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
935 | if (ret < 0) |
936 | pr_err("%s: %s event failed: %d\n", | |
937 | ev_name, w->name, ret); | |
938 | } | |
939 | } | |
940 | ||
b22ead2a | 941 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 942 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 943 | struct list_head *pending) |
163cac06 | 944 | { |
3a45b867 | 945 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
946 | struct snd_soc_dapm_widget *w; |
947 | int reg, power; | |
b22ead2a MB |
948 | unsigned int value = 0; |
949 | unsigned int mask = 0; | |
950 | unsigned int cur_mask; | |
951 | ||
952 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
953 | power_list)->reg; | |
954 | ||
955 | list_for_each_entry(w, pending, power_list) { | |
956 | cur_mask = 1 << w->shift; | |
957 | BUG_ON(reg != w->reg); | |
958 | ||
959 | if (w->invert) | |
960 | power = !w->power; | |
961 | else | |
962 | power = w->power; | |
963 | ||
964 | mask |= cur_mask; | |
965 | if (power) | |
966 | value |= cur_mask; | |
967 | ||
fd8d3bc0 | 968 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
969 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
970 | w->name, reg, value, mask); | |
81628103 | 971 | |
68f89ad8 MB |
972 | /* Check for events */ |
973 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
974 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
975 | } |
976 | ||
977 | if (reg >= 0) { | |
29376bc7 MB |
978 | /* Any widget will do, they should all be updating the |
979 | * same register. | |
980 | */ | |
981 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
982 | power_list); | |
983 | ||
fd8d3bc0 | 984 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 985 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
986 | value, mask, reg, card->pop_time); |
987 | pop_wait(card->pop_time); | |
0445bdf4 | 988 | soc_widget_update_bits(w, reg, mask, value); |
b22ead2a MB |
989 | } |
990 | ||
81628103 | 991 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
992 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
993 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 994 | } |
b22ead2a | 995 | } |
42aa3418 | 996 | |
b22ead2a MB |
997 | /* Apply a DAPM power sequence. |
998 | * | |
999 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1000 | * order to minimise the number of writes to the device required | |
1001 | * multiple widgets will be updated in a single write where possible. | |
1002 | * Currently anything that requires more than a single write is not | |
1003 | * handled. | |
1004 | */ | |
ce6120cc | 1005 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1006 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1007 | { |
1008 | struct snd_soc_dapm_widget *w, *n; | |
1009 | LIST_HEAD(pending); | |
1010 | int cur_sort = -1; | |
20e4859d | 1011 | int cur_subseq = -1; |
b22ead2a | 1012 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1013 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1014 | int ret, i; |
828a842f MB |
1015 | int *sort; |
1016 | ||
1017 | if (power_up) | |
1018 | sort = dapm_up_seq; | |
1019 | else | |
1020 | sort = dapm_down_seq; | |
163cac06 | 1021 | |
b22ead2a MB |
1022 | list_for_each_entry_safe(w, n, list, power_list) { |
1023 | ret = 0; | |
1024 | ||
1025 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1026 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1027 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1028 | if (!list_empty(&pending)) |
7be31be8 | 1029 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1030 | |
474b62d6 MB |
1031 | if (cur_dapm && cur_dapm->seq_notifier) { |
1032 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1033 | if (sort[i] == cur_sort) | |
1034 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1035 | i, |
1036 | cur_subseq); | |
474b62d6 MB |
1037 | } |
1038 | ||
b22ead2a MB |
1039 | INIT_LIST_HEAD(&pending); |
1040 | cur_sort = -1; | |
b0b3e6f8 | 1041 | cur_subseq = INT_MIN; |
b22ead2a | 1042 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1043 | cur_dapm = NULL; |
b22ead2a MB |
1044 | } |
1045 | ||
163cac06 MB |
1046 | switch (w->id) { |
1047 | case snd_soc_dapm_pre: | |
1048 | if (!w->event) | |
b22ead2a MB |
1049 | list_for_each_entry_safe_continue(w, n, list, |
1050 | power_list); | |
163cac06 | 1051 | |
b22ead2a | 1052 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1053 | ret = w->event(w, |
1054 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1055 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1056 | ret = w->event(w, |
1057 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1058 | break; |
1059 | ||
1060 | case snd_soc_dapm_post: | |
1061 | if (!w->event) | |
b22ead2a MB |
1062 | list_for_each_entry_safe_continue(w, n, list, |
1063 | power_list); | |
163cac06 | 1064 | |
b22ead2a | 1065 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1066 | ret = w->event(w, |
1067 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1068 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1069 | ret = w->event(w, |
1070 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1071 | break; |
1072 | ||
b22ead2a | 1073 | default: |
81628103 MB |
1074 | /* Queue it up for application */ |
1075 | cur_sort = sort[w->id]; | |
20e4859d | 1076 | cur_subseq = w->subseq; |
81628103 | 1077 | cur_reg = w->reg; |
7be31be8 | 1078 | cur_dapm = w->dapm; |
81628103 MB |
1079 | list_move(&w->power_list, &pending); |
1080 | break; | |
163cac06 | 1081 | } |
b22ead2a MB |
1082 | |
1083 | if (ret < 0) | |
f7d41ae8 JN |
1084 | dev_err(w->dapm->dev, |
1085 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1086 | } |
b22ead2a MB |
1087 | |
1088 | if (!list_empty(&pending)) | |
28e86808 | 1089 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1090 | |
1091 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1092 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1093 | if (sort[i] == cur_sort) | |
1094 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1095 | i, cur_subseq); |
474b62d6 | 1096 | } |
42aa3418 MB |
1097 | } |
1098 | ||
97404f2e MB |
1099 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1100 | { | |
1101 | struct snd_soc_dapm_update *update = dapm->update; | |
1102 | struct snd_soc_dapm_widget *w; | |
1103 | int ret; | |
1104 | ||
1105 | if (!update) | |
1106 | return; | |
1107 | ||
1108 | w = update->widget; | |
1109 | ||
1110 | if (w->event && | |
1111 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1112 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1113 | if (ret != 0) | |
1114 | pr_err("%s DAPM pre-event failed: %d\n", | |
1115 | w->name, ret); | |
1116 | } | |
1117 | ||
1118 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, | |
1119 | update->val); | |
1120 | if (ret < 0) | |
1121 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1122 | ||
1123 | if (w->event && | |
1124 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1125 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1126 | if (ret != 0) | |
1127 | pr_err("%s DAPM post-event failed: %d\n", | |
1128 | w->name, ret); | |
1129 | } | |
1130 | } | |
1131 | ||
9d0624a7 MB |
1132 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1133 | * they're changing state. | |
1134 | */ | |
1135 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1136 | { | |
1137 | struct snd_soc_dapm_context *d = data; | |
1138 | int ret; | |
1139 | ||
56fba41f MB |
1140 | /* If we're off and we're not supposed to be go into STANDBY */ |
1141 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1142 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1143 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1144 | if (ret != 0) | |
1145 | dev_err(d->dev, | |
1146 | "Failed to turn on bias: %d\n", ret); | |
1147 | } | |
1148 | ||
56fba41f MB |
1149 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1150 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1151 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1152 | if (ret != 0) | |
1153 | dev_err(d->dev, | |
1154 | "Failed to prepare bias: %d\n", ret); | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | /* Async callback run prior to DAPM sequences - brings to their final | |
1159 | * state. | |
1160 | */ | |
1161 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1162 | { | |
1163 | struct snd_soc_dapm_context *d = data; | |
1164 | int ret; | |
1165 | ||
1166 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1167 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1168 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1169 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1170 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1171 | if (ret != 0) | |
1172 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1173 | ret); | |
1174 | } | |
97404f2e | 1175 | |
9d0624a7 | 1176 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1177 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1178 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1179 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1180 | if (ret != 0) | |
1181 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
1182 | } | |
1183 | ||
1184 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1185 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1186 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1187 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1188 | if (ret != 0) | |
1189 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1190 | ret); | |
1191 | } | |
1192 | } | |
97404f2e | 1193 | |
2b97eabc RP |
1194 | /* |
1195 | * Scan each dapm widget for complete audio path. | |
1196 | * A complete path is a route that has valid endpoints i.e.:- | |
1197 | * | |
1198 | * o DAC to output pin. | |
1199 | * o Input Pin to ADC. | |
1200 | * o Input pin to Output pin (bypass, sidetone) | |
1201 | * o DAC to ADC (loopback). | |
1202 | */ | |
ce6120cc | 1203 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1204 | { |
12ea2c78 | 1205 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1206 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1207 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1208 | LIST_HEAD(up_list); |
1209 | LIST_HEAD(down_list); | |
9d0624a7 | 1210 | LIST_HEAD(async_domain); |
56fba41f | 1211 | enum snd_soc_bias_level bias; |
38357ab2 | 1212 | int power; |
6d3ddc81 | 1213 | |
84e90930 MB |
1214 | trace_snd_soc_dapm_start(card); |
1215 | ||
56fba41f MB |
1216 | list_for_each_entry(d, &card->dapm_list, list) { |
1217 | if (d->n_widgets || d->codec == NULL) { | |
1218 | if (d->idle_bias_off) | |
1219 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1220 | else | |
1221 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1222 | } | |
1223 | } | |
7be31be8 | 1224 | |
de02d078 MB |
1225 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
1226 | ||
6d3ddc81 MB |
1227 | /* Check which widgets we need to power and store them in |
1228 | * lists indicating if they should be powered up or down. | |
1229 | */ | |
97c866de | 1230 | list_for_each_entry(w, &card->widgets, list) { |
6d3ddc81 MB |
1231 | switch (w->id) { |
1232 | case snd_soc_dapm_pre: | |
828a842f | 1233 | dapm_seq_insert(w, &down_list, false); |
6d3ddc81 MB |
1234 | break; |
1235 | case snd_soc_dapm_post: | |
828a842f | 1236 | dapm_seq_insert(w, &up_list, true); |
6d3ddc81 MB |
1237 | break; |
1238 | ||
1239 | default: | |
1240 | if (!w->power_check) | |
1241 | continue; | |
1242 | ||
9949788b | 1243 | if (!w->force) |
50b6bce5 | 1244 | power = w->power_check(w); |
9949788b MB |
1245 | else |
1246 | power = 1; | |
dfcc9047 MB |
1247 | |
1248 | if (power) { | |
1249 | d = w->dapm; | |
1250 | ||
1251 | /* Supplies and micbiases only bring | |
1252 | * the context up to STANDBY as unless | |
1253 | * something else is active and | |
1254 | * passing audio they generally don't | |
1255 | * require full power. | |
1256 | */ | |
1257 | switch (w->id) { | |
1258 | case snd_soc_dapm_supply: | |
1259 | case snd_soc_dapm_micbias: | |
1260 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1261 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1262 | break; | |
1263 | default: | |
1264 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1265 | break; | |
1266 | } | |
1267 | } | |
452c5eaa | 1268 | |
6d3ddc81 MB |
1269 | if (w->power == power) |
1270 | continue; | |
1271 | ||
84e90930 MB |
1272 | trace_snd_soc_dapm_widget_power(w, power); |
1273 | ||
6d3ddc81 | 1274 | if (power) |
828a842f | 1275 | dapm_seq_insert(w, &up_list, true); |
6d3ddc81 | 1276 | else |
828a842f | 1277 | dapm_seq_insert(w, &down_list, false); |
6d3ddc81 MB |
1278 | |
1279 | w->power = power; | |
1280 | break; | |
1281 | } | |
2b97eabc RP |
1282 | } |
1283 | ||
b14b76a5 MB |
1284 | /* If there are no DAPM widgets then try to figure out power from the |
1285 | * event type. | |
1286 | */ | |
97c866de | 1287 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1288 | switch (event) { |
1289 | case SND_SOC_DAPM_STREAM_START: | |
1290 | case SND_SOC_DAPM_STREAM_RESUME: | |
56fba41f | 1291 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
b14b76a5 | 1292 | break; |
862af8ad | 1293 | case SND_SOC_DAPM_STREAM_STOP: |
56fba41f MB |
1294 | if (dapm->codec->active) |
1295 | dapm->target_bias_level = SND_SOC_BIAS_ON; | |
1296 | else | |
1297 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; | |
862af8ad | 1298 | break; |
50b6bce5 | 1299 | case SND_SOC_DAPM_STREAM_SUSPEND: |
56fba41f | 1300 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; |
50b6bce5 | 1301 | break; |
b14b76a5 | 1302 | case SND_SOC_DAPM_STREAM_NOP: |
56fba41f | 1303 | dapm->target_bias_level = dapm->bias_level; |
50b6bce5 | 1304 | break; |
b14b76a5 MB |
1305 | default: |
1306 | break; | |
1307 | } | |
1308 | } | |
1309 | ||
52ba67bf | 1310 | /* Force all contexts in the card to the same bias state */ |
56fba41f | 1311 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1312 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1313 | if (d->target_bias_level > bias) |
1314 | bias = d->target_bias_level; | |
52ba67bf | 1315 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f | 1316 | d->target_bias_level = bias; |
52ba67bf | 1317 | |
de02d078 | 1318 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1319 | |
9d0624a7 MB |
1320 | /* Run all the bias changes in parallel */ |
1321 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1322 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1323 | &async_domain); | |
1324 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1325 | |
6d3ddc81 | 1326 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1327 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1328 | |
97404f2e MB |
1329 | dapm_widget_update(dapm); |
1330 | ||
6d3ddc81 | 1331 | /* Now power up. */ |
828a842f | 1332 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1333 | |
9d0624a7 MB |
1334 | /* Run all the bias changes in parallel */ |
1335 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1336 | async_schedule_domain(dapm_post_sequence_async, d, | |
1337 | &async_domain); | |
1338 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1339 | |
fd8d3bc0 JN |
1340 | pop_dbg(dapm->dev, card->pop_time, |
1341 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1342 | pop_wait(card->pop_time); |
cb507e7e | 1343 | |
84e90930 MB |
1344 | trace_snd_soc_dapm_done(card); |
1345 | ||
42aa3418 | 1346 | return 0; |
2b97eabc RP |
1347 | } |
1348 | ||
79fb9387 MB |
1349 | #ifdef CONFIG_DEBUG_FS |
1350 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1351 | { | |
1352 | file->private_data = inode->i_private; | |
1353 | return 0; | |
1354 | } | |
1355 | ||
1356 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1357 | char __user *user_buf, | |
1358 | size_t count, loff_t *ppos) | |
1359 | { | |
1360 | struct snd_soc_dapm_widget *w = file->private_data; | |
1361 | char *buf; | |
1362 | int in, out; | |
1363 | ssize_t ret; | |
1364 | struct snd_soc_dapm_path *p = NULL; | |
1365 | ||
1366 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1367 | if (!buf) | |
1368 | return -ENOMEM; | |
1369 | ||
1370 | in = is_connected_input_ep(w); | |
ce6120cc | 1371 | dapm_clear_walk(w->dapm); |
79fb9387 | 1372 | out = is_connected_output_ep(w); |
ce6120cc | 1373 | dapm_clear_walk(w->dapm); |
79fb9387 | 1374 | |
d033c36a | 1375 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1376 | w->name, w->power ? "On" : "Off", in, out); |
1377 | ||
d033c36a MB |
1378 | if (w->reg >= 0) |
1379 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1380 | " - R%d(0x%x) bit %d", | |
1381 | w->reg, w->reg, w->shift); | |
1382 | ||
1383 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1384 | ||
3eef08ba MB |
1385 | if (w->sname) |
1386 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1387 | w->sname, | |
1388 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1389 | |
1390 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1391 | if (p->connected && !p->connected(w, p->sink)) |
1392 | continue; | |
1393 | ||
79fb9387 MB |
1394 | if (p->connect) |
1395 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1396 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1397 | p->name ? p->name : "static", |
1398 | p->source->name); | |
1399 | } | |
1400 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1401 | if (p->connected && !p->connected(w, p->sink)) |
1402 | continue; | |
1403 | ||
79fb9387 MB |
1404 | if (p->connect) |
1405 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1406 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1407 | p->name ? p->name : "static", |
1408 | p->sink->name); | |
1409 | } | |
1410 | ||
1411 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1412 | ||
1413 | kfree(buf); | |
1414 | return ret; | |
1415 | } | |
1416 | ||
1417 | static const struct file_operations dapm_widget_power_fops = { | |
1418 | .open = dapm_widget_power_open_file, | |
1419 | .read = dapm_widget_power_read_file, | |
6038f373 | 1420 | .llseek = default_llseek, |
79fb9387 MB |
1421 | }; |
1422 | ||
ef49e4fa MB |
1423 | static int dapm_bias_open_file(struct inode *inode, struct file *file) |
1424 | { | |
1425 | file->private_data = inode->i_private; | |
1426 | return 0; | |
1427 | } | |
1428 | ||
1429 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, | |
1430 | size_t count, loff_t *ppos) | |
1431 | { | |
1432 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1433 | char *level; | |
1434 | ||
1435 | switch (dapm->bias_level) { | |
1436 | case SND_SOC_BIAS_ON: | |
1437 | level = "On\n"; | |
1438 | break; | |
1439 | case SND_SOC_BIAS_PREPARE: | |
1440 | level = "Prepare\n"; | |
1441 | break; | |
1442 | case SND_SOC_BIAS_STANDBY: | |
1443 | level = "Standby\n"; | |
1444 | break; | |
1445 | case SND_SOC_BIAS_OFF: | |
1446 | level = "Off\n"; | |
1447 | break; | |
1448 | default: | |
1449 | BUG(); | |
1450 | level = "Unknown\n"; | |
1451 | break; | |
1452 | } | |
1453 | ||
1454 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1455 | strlen(level)); | |
1456 | } | |
1457 | ||
1458 | static const struct file_operations dapm_bias_fops = { | |
1459 | .open = dapm_bias_open_file, | |
1460 | .read = dapm_bias_read_file, | |
1461 | .llseek = default_llseek, | |
1462 | }; | |
1463 | ||
8eecaf62 LPC |
1464 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1465 | struct dentry *parent) | |
79fb9387 | 1466 | { |
79fb9387 MB |
1467 | struct dentry *d; |
1468 | ||
8eecaf62 LPC |
1469 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1470 | ||
1471 | if (!dapm->debugfs_dapm) { | |
1472 | printk(KERN_WARNING | |
1473 | "Failed to create DAPM debugfs directory\n"); | |
79fb9387 | 1474 | return; |
8eecaf62 | 1475 | } |
79fb9387 | 1476 | |
ef49e4fa MB |
1477 | d = debugfs_create_file("bias_level", 0444, |
1478 | dapm->debugfs_dapm, dapm, | |
1479 | &dapm_bias_fops); | |
1480 | if (!d) | |
1481 | dev_warn(dapm->dev, | |
1482 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1483 | } |
ef49e4fa | 1484 | |
d5d1e0be LPC |
1485 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1486 | { | |
1487 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1488 | struct dentry *d; | |
79fb9387 | 1489 | |
d5d1e0be LPC |
1490 | if (!dapm->debugfs_dapm || !w->name) |
1491 | return; | |
1492 | ||
1493 | d = debugfs_create_file(w->name, 0444, | |
1494 | dapm->debugfs_dapm, w, | |
1495 | &dapm_widget_power_fops); | |
1496 | if (!d) | |
1497 | dev_warn(w->dapm->dev, | |
1498 | "ASoC: Failed to create %s debugfs file\n", | |
1499 | w->name); | |
79fb9387 | 1500 | } |
d5d1e0be | 1501 | |
6c45e126 LPC |
1502 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1503 | { | |
1504 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1505 | } | |
1506 | ||
79fb9387 | 1507 | #else |
8eecaf62 LPC |
1508 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1509 | struct dentry *parent) | |
79fb9387 MB |
1510 | { |
1511 | } | |
d5d1e0be LPC |
1512 | |
1513 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1514 | { | |
1515 | } | |
1516 | ||
6c45e126 LPC |
1517 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1518 | { | |
1519 | } | |
1520 | ||
79fb9387 MB |
1521 | #endif |
1522 | ||
2b97eabc | 1523 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1524 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1525 | struct snd_kcontrol *kcontrol, int change, |
1526 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1527 | { |
1528 | struct snd_soc_dapm_path *path; | |
1529 | int found = 0; | |
1530 | ||
eff317d0 | 1531 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1532 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1533 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1534 | return -ENODEV; |
1535 | ||
3a65577d | 1536 | if (!change) |
2b97eabc RP |
1537 | return 0; |
1538 | ||
1539 | /* find dapm widget path assoc with kcontrol */ | |
8ddab3f5 | 1540 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1541 | if (path->kcontrol != kcontrol) |
1542 | continue; | |
1543 | ||
cb01e2b9 | 1544 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1545 | continue; |
1546 | ||
1547 | found = 1; | |
1548 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1549 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1550 | path->connect = 1; /* new connection */ |
1551 | else | |
1552 | path->connect = 0; /* old connection must be powered down */ | |
1553 | } | |
1554 | ||
b91b8fa0 | 1555 | if (found) |
ce6120cc | 1556 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1557 | |
1558 | return 0; | |
1559 | } | |
2b97eabc | 1560 | |
1b075e3f | 1561 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1562 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1563 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1564 | { |
1565 | struct snd_soc_dapm_path *path; | |
1566 | int found = 0; | |
1567 | ||
1b075e3f | 1568 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1569 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1570 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1571 | return -ENODEV; |
1572 | ||
2b97eabc | 1573 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1574 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1575 | if (path->kcontrol != kcontrol) |
1576 | continue; | |
1577 | ||
1578 | /* found, now check type */ | |
1579 | found = 1; | |
283375ce | 1580 | path->connect = connect; |
2b97eabc RP |
1581 | } |
1582 | ||
b91b8fa0 | 1583 | if (found) |
ce6120cc | 1584 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1585 | |
1586 | return 0; | |
1587 | } | |
2b97eabc RP |
1588 | |
1589 | /* show dapm widget status in sys fs */ | |
1590 | static ssize_t dapm_widget_show(struct device *dev, | |
1591 | struct device_attribute *attr, char *buf) | |
1592 | { | |
f0fba2ad LG |
1593 | struct snd_soc_pcm_runtime *rtd = |
1594 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1595 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1596 | struct snd_soc_dapm_widget *w; |
1597 | int count = 0; | |
1598 | char *state = "not set"; | |
1599 | ||
97c866de JN |
1600 | list_for_each_entry(w, &codec->card->widgets, list) { |
1601 | if (w->dapm != &codec->dapm) | |
1602 | continue; | |
2b97eabc RP |
1603 | |
1604 | /* only display widgets that burnm power */ | |
1605 | switch (w->id) { | |
1606 | case snd_soc_dapm_hp: | |
1607 | case snd_soc_dapm_mic: | |
1608 | case snd_soc_dapm_spk: | |
1609 | case snd_soc_dapm_line: | |
1610 | case snd_soc_dapm_micbias: | |
1611 | case snd_soc_dapm_dac: | |
1612 | case snd_soc_dapm_adc: | |
1613 | case snd_soc_dapm_pga: | |
d88429a6 | 1614 | case snd_soc_dapm_out_drv: |
2b97eabc | 1615 | case snd_soc_dapm_mixer: |
ca9c1aae | 1616 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1617 | case snd_soc_dapm_supply: |
2b97eabc RP |
1618 | if (w->name) |
1619 | count += sprintf(buf + count, "%s: %s\n", | |
1620 | w->name, w->power ? "On":"Off"); | |
1621 | break; | |
1622 | default: | |
1623 | break; | |
1624 | } | |
1625 | } | |
1626 | ||
ce6120cc | 1627 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1628 | case SND_SOC_BIAS_ON: |
1629 | state = "On"; | |
2b97eabc | 1630 | break; |
0be9898a MB |
1631 | case SND_SOC_BIAS_PREPARE: |
1632 | state = "Prepare"; | |
2b97eabc | 1633 | break; |
0be9898a MB |
1634 | case SND_SOC_BIAS_STANDBY: |
1635 | state = "Standby"; | |
2b97eabc | 1636 | break; |
0be9898a MB |
1637 | case SND_SOC_BIAS_OFF: |
1638 | state = "Off"; | |
2b97eabc RP |
1639 | break; |
1640 | } | |
1641 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1642 | ||
1643 | return count; | |
1644 | } | |
1645 | ||
1646 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1647 | ||
1648 | int snd_soc_dapm_sys_add(struct device *dev) | |
1649 | { | |
12ef193d | 1650 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1651 | } |
1652 | ||
1653 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1654 | { | |
aef90843 | 1655 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1656 | } |
1657 | ||
1658 | /* free all dapm widgets and resources */ | |
ce6120cc | 1659 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1660 | { |
1661 | struct snd_soc_dapm_widget *w, *next_w; | |
1662 | struct snd_soc_dapm_path *p, *next_p; | |
1663 | ||
97c866de JN |
1664 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1665 | if (w->dapm != dapm) | |
1666 | continue; | |
2b97eabc | 1667 | list_del(&w->list); |
8ddab3f5 JN |
1668 | /* |
1669 | * remove source and sink paths associated to this widget. | |
1670 | * While removing the path, remove reference to it from both | |
1671 | * source and sink widgets so that path is removed only once. | |
1672 | */ | |
1673 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1674 | list_del(&p->list_sink); | |
1675 | list_del(&p->list_source); | |
1676 | list_del(&p->list); | |
1677 | kfree(p->long_name); | |
1678 | kfree(p); | |
1679 | } | |
1680 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1681 | list_del(&p->list_sink); | |
1682 | list_del(&p->list_source); | |
1683 | list_del(&p->list); | |
1684 | kfree(p->long_name); | |
1685 | kfree(p); | |
1686 | } | |
fad59888 | 1687 | kfree(w->kcontrols); |
ead9b919 | 1688 | kfree(w->name); |
2b97eabc RP |
1689 | kfree(w); |
1690 | } | |
2b97eabc RP |
1691 | } |
1692 | ||
91a5fca4 LPC |
1693 | static struct snd_soc_dapm_widget *dapm_find_widget( |
1694 | struct snd_soc_dapm_context *dapm, const char *pin, | |
1695 | bool search_other_contexts) | |
a5302181 LG |
1696 | { |
1697 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 1698 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 1699 | |
97c866de | 1700 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 1701 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
1702 | if (w->dapm == dapm) |
1703 | return w; | |
1704 | else | |
1705 | fallback = w; | |
a5302181 LG |
1706 | } |
1707 | } | |
1708 | ||
91a5fca4 LPC |
1709 | if (search_other_contexts) |
1710 | return fallback; | |
1711 | ||
1712 | return NULL; | |
1713 | } | |
1714 | ||
1715 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
1716 | const char *pin, int status) | |
1717 | { | |
1718 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
1719 | ||
1720 | if (!w) { | |
1721 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
1722 | return -EINVAL; | |
0d86733c MB |
1723 | } |
1724 | ||
91a5fca4 LPC |
1725 | w->connected = status; |
1726 | if (status == 0) | |
1727 | w->force = 0; | |
1728 | ||
1729 | return 0; | |
a5302181 LG |
1730 | } |
1731 | ||
2b97eabc | 1732 | /** |
a5302181 | 1733 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1734 | * @dapm: DAPM context |
2b97eabc RP |
1735 | * |
1736 | * Walks all dapm audio paths and powers widgets according to their | |
1737 | * stream or path usage. | |
1738 | * | |
1739 | * Returns 0 for success. | |
1740 | */ | |
ce6120cc | 1741 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1742 | { |
ce6120cc | 1743 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1744 | } |
a5302181 | 1745 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1746 | |
ce6120cc | 1747 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1748 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1749 | { |
1750 | struct snd_soc_dapm_path *path; | |
1751 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 1752 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 1753 | const char *sink; |
215edda3 | 1754 | const char *control = route->control; |
ead9b919 JN |
1755 | const char *source; |
1756 | char prefixed_sink[80]; | |
1757 | char prefixed_source[80]; | |
2b97eabc RP |
1758 | int ret = 0; |
1759 | ||
88e8b9a8 | 1760 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
1761 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
1762 | dapm->codec->name_prefix, route->sink); | |
1763 | sink = prefixed_sink; | |
1764 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1765 | dapm->codec->name_prefix, route->source); | |
1766 | source = prefixed_source; | |
1767 | } else { | |
1768 | sink = route->sink; | |
1769 | source = route->source; | |
1770 | } | |
1771 | ||
97c866de JN |
1772 | /* |
1773 | * find src and dest widgets over all widgets but favor a widget from | |
1774 | * current DAPM context | |
1775 | */ | |
1776 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 1777 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
1778 | wtsink = w; |
1779 | if (w->dapm == dapm) | |
1780 | wsink = w; | |
2b97eabc RP |
1781 | continue; |
1782 | } | |
1783 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
1784 | wtsource = w; |
1785 | if (w->dapm == dapm) | |
1786 | wsource = w; | |
2b97eabc RP |
1787 | } |
1788 | } | |
97c866de JN |
1789 | /* use widget from another DAPM context if not found from this */ |
1790 | if (!wsink) | |
1791 | wsink = wtsink; | |
1792 | if (!wsource) | |
1793 | wsource = wtsource; | |
2b97eabc RP |
1794 | |
1795 | if (wsource == NULL || wsink == NULL) | |
1796 | return -ENODEV; | |
1797 | ||
1798 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1799 | if (!path) | |
1800 | return -ENOMEM; | |
1801 | ||
1802 | path->source = wsource; | |
1803 | path->sink = wsink; | |
215edda3 | 1804 | path->connected = route->connected; |
2b97eabc RP |
1805 | INIT_LIST_HEAD(&path->list); |
1806 | INIT_LIST_HEAD(&path->list_source); | |
1807 | INIT_LIST_HEAD(&path->list_sink); | |
1808 | ||
1809 | /* check for external widgets */ | |
1810 | if (wsink->id == snd_soc_dapm_input) { | |
1811 | if (wsource->id == snd_soc_dapm_micbias || | |
1812 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1813 | wsource->id == snd_soc_dapm_line || |
1814 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1815 | wsink->ext = 1; |
1816 | } | |
1817 | if (wsource->id == snd_soc_dapm_output) { | |
1818 | if (wsink->id == snd_soc_dapm_spk || | |
1819 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1820 | wsink->id == snd_soc_dapm_line || |
1821 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1822 | wsource->ext = 1; |
1823 | } | |
1824 | ||
1825 | /* connect static paths */ | |
1826 | if (control == NULL) { | |
8ddab3f5 | 1827 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1828 | list_add(&path->list_sink, &wsink->sources); |
1829 | list_add(&path->list_source, &wsource->sinks); | |
1830 | path->connect = 1; | |
1831 | return 0; | |
1832 | } | |
1833 | ||
1834 | /* connect dynamic paths */ | |
dc2bea61 | 1835 | switch (wsink->id) { |
2b97eabc RP |
1836 | case snd_soc_dapm_adc: |
1837 | case snd_soc_dapm_dac: | |
1838 | case snd_soc_dapm_pga: | |
d88429a6 | 1839 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
1840 | case snd_soc_dapm_input: |
1841 | case snd_soc_dapm_output: | |
1842 | case snd_soc_dapm_micbias: | |
1843 | case snd_soc_dapm_vmid: | |
1844 | case snd_soc_dapm_pre: | |
1845 | case snd_soc_dapm_post: | |
246d0a17 | 1846 | case snd_soc_dapm_supply: |
010ff262 MB |
1847 | case snd_soc_dapm_aif_in: |
1848 | case snd_soc_dapm_aif_out: | |
8ddab3f5 | 1849 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1850 | list_add(&path->list_sink, &wsink->sources); |
1851 | list_add(&path->list_source, &wsource->sinks); | |
1852 | path->connect = 1; | |
1853 | return 0; | |
1854 | case snd_soc_dapm_mux: | |
24ff33ac | 1855 | case snd_soc_dapm_virt_mux: |
74155556 | 1856 | case snd_soc_dapm_value_mux: |
ce6120cc | 1857 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 1858 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
1859 | if (ret != 0) |
1860 | goto err; | |
1861 | break; | |
1862 | case snd_soc_dapm_switch: | |
1863 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1864 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1865 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1866 | if (ret != 0) |
1867 | goto err; | |
1868 | break; | |
1869 | case snd_soc_dapm_hp: | |
1870 | case snd_soc_dapm_mic: | |
1871 | case snd_soc_dapm_line: | |
1872 | case snd_soc_dapm_spk: | |
8ddab3f5 | 1873 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1874 | list_add(&path->list_sink, &wsink->sources); |
1875 | list_add(&path->list_source, &wsource->sinks); | |
1876 | path->connect = 0; | |
1877 | return 0; | |
1878 | } | |
1879 | return 0; | |
1880 | ||
1881 | err: | |
f7d41ae8 JN |
1882 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1883 | source, control, sink); | |
2b97eabc RP |
1884 | kfree(path); |
1885 | return ret; | |
1886 | } | |
105f1c28 | 1887 | |
105f1c28 MB |
1888 | /** |
1889 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1890 | * @dapm: DAPM context |
105f1c28 MB |
1891 | * @route: audio routes |
1892 | * @num: number of routes | |
1893 | * | |
1894 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1895 | * the widget receiving the audio signal, whilst the source is the sender | |
1896 | * of the audio signal. | |
1897 | * | |
1898 | * Returns 0 for success else error. On error all resources can be freed | |
1899 | * with a call to snd_soc_card_free(). | |
1900 | */ | |
ce6120cc | 1901 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1902 | const struct snd_soc_dapm_route *route, int num) |
1903 | { | |
1904 | int i, ret; | |
1905 | ||
1906 | for (i = 0; i < num; i++) { | |
ce6120cc | 1907 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1908 | if (ret < 0) { |
f7d41ae8 JN |
1909 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1910 | route->source, route->sink); | |
105f1c28 MB |
1911 | return ret; |
1912 | } | |
1913 | route++; | |
1914 | } | |
1915 | ||
1916 | return 0; | |
1917 | } | |
1918 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1919 | ||
bf3a9e13 MB |
1920 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
1921 | const struct snd_soc_dapm_route *route) | |
1922 | { | |
1923 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
1924 | route->source, | |
1925 | true); | |
1926 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
1927 | route->sink, | |
1928 | true); | |
1929 | struct snd_soc_dapm_path *path; | |
1930 | int count = 0; | |
1931 | ||
1932 | if (!source) { | |
1933 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
1934 | route->source); | |
1935 | return -ENODEV; | |
1936 | } | |
1937 | ||
1938 | if (!sink) { | |
1939 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
1940 | route->sink); | |
1941 | return -ENODEV; | |
1942 | } | |
1943 | ||
1944 | if (route->control || route->connected) | |
1945 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
1946 | route->source, route->sink); | |
1947 | ||
1948 | list_for_each_entry(path, &source->sinks, list_source) { | |
1949 | if (path->sink == sink) { | |
1950 | path->weak = 1; | |
1951 | count++; | |
1952 | } | |
1953 | } | |
1954 | ||
1955 | if (count == 0) | |
1956 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
1957 | route->source, route->sink); | |
1958 | if (count > 1) | |
1959 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
1960 | count, route->source, route->sink); | |
1961 | ||
1962 | return 0; | |
1963 | } | |
1964 | ||
1965 | /** | |
1966 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
1967 | * @dapm: DAPM context | |
1968 | * @route: audio routes | |
1969 | * @num: number of routes | |
1970 | * | |
1971 | * Mark existing routes matching those specified in the passed array | |
1972 | * as being weak, meaning that they are ignored for the purpose of | |
1973 | * power decisions. The main intended use case is for sidetone paths | |
1974 | * which couple audio between other independent paths if they are both | |
1975 | * active in order to make the combination work better at the user | |
1976 | * level but which aren't intended to be "used". | |
1977 | * | |
1978 | * Note that CODEC drivers should not use this as sidetone type paths | |
1979 | * can frequently also be used as bypass paths. | |
1980 | */ | |
1981 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
1982 | const struct snd_soc_dapm_route *route, int num) | |
1983 | { | |
1984 | int i, err; | |
1985 | int ret = 0; | |
1986 | ||
1987 | for (i = 0; i < num; i++) { | |
1988 | err = snd_soc_dapm_weak_route(dapm, route); | |
1989 | if (err) | |
1990 | ret = err; | |
1991 | route++; | |
1992 | } | |
1993 | ||
1994 | return ret; | |
1995 | } | |
1996 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
1997 | ||
2b97eabc RP |
1998 | /** |
1999 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2000 | * @dapm: DAPM context |
2b97eabc RP |
2001 | * |
2002 | * Checks the codec for any new dapm widgets and creates them if found. | |
2003 | * | |
2004 | * Returns 0 for success. | |
2005 | */ | |
ce6120cc | 2006 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2007 | { |
2008 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2009 | unsigned int val; |
2b97eabc | 2010 | |
97c866de | 2011 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2012 | { |
2013 | if (w->new) | |
2014 | continue; | |
2015 | ||
fad59888 SW |
2016 | if (w->num_kcontrols) { |
2017 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2018 | sizeof(struct snd_kcontrol *), | |
2019 | GFP_KERNEL); | |
2020 | if (!w->kcontrols) | |
2021 | return -ENOMEM; | |
2022 | } | |
2023 | ||
2b97eabc RP |
2024 | switch(w->id) { |
2025 | case snd_soc_dapm_switch: | |
2026 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2027 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 2028 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2029 | dapm_new_mixer(w); |
2b97eabc RP |
2030 | break; |
2031 | case snd_soc_dapm_mux: | |
24ff33ac | 2032 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2033 | case snd_soc_dapm_value_mux: |
b75576d7 | 2034 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2035 | dapm_new_mux(w); |
2b97eabc RP |
2036 | break; |
2037 | case snd_soc_dapm_adc: | |
010ff262 | 2038 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
2039 | w->power_check = dapm_adc_check_power; |
2040 | break; | |
2b97eabc | 2041 | case snd_soc_dapm_dac: |
010ff262 | 2042 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
2043 | w->power_check = dapm_dac_check_power; |
2044 | break; | |
2b97eabc | 2045 | case snd_soc_dapm_pga: |
d88429a6 | 2046 | case snd_soc_dapm_out_drv: |
b75576d7 | 2047 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2048 | dapm_new_pga(w); |
2b97eabc RP |
2049 | break; |
2050 | case snd_soc_dapm_input: | |
2051 | case snd_soc_dapm_output: | |
2052 | case snd_soc_dapm_micbias: | |
2053 | case snd_soc_dapm_spk: | |
2054 | case snd_soc_dapm_hp: | |
2055 | case snd_soc_dapm_mic: | |
2056 | case snd_soc_dapm_line: | |
b75576d7 MB |
2057 | w->power_check = dapm_generic_check_power; |
2058 | break; | |
246d0a17 MB |
2059 | case snd_soc_dapm_supply: |
2060 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
2061 | case snd_soc_dapm_vmid: |
2062 | case snd_soc_dapm_pre: | |
2063 | case snd_soc_dapm_post: | |
2064 | break; | |
2065 | } | |
b66a70d5 MB |
2066 | |
2067 | /* Read the initial power state from the device */ | |
2068 | if (w->reg >= 0) { | |
0445bdf4 | 2069 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2070 | val &= 1 << w->shift; |
2071 | if (w->invert) | |
2072 | val = !val; | |
2073 | ||
2074 | if (val) | |
2075 | w->power = 1; | |
2076 | } | |
2077 | ||
2b97eabc | 2078 | w->new = 1; |
d5d1e0be LPC |
2079 | |
2080 | dapm_debugfs_add_widget(w); | |
2b97eabc RP |
2081 | } |
2082 | ||
ce6120cc | 2083 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
2084 | return 0; |
2085 | } | |
2086 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2087 | ||
2088 | /** | |
2089 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2090 | * @kcontrol: mixer control | |
ac11a2b3 | 2091 | * @ucontrol: control element information |
2b97eabc RP |
2092 | * |
2093 | * Callback to get the value of a dapm mixer control. | |
2094 | * | |
2095 | * Returns 0 for success. | |
2096 | */ | |
2097 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2098 | struct snd_ctl_elem_value *ucontrol) | |
2099 | { | |
fafd2176 SW |
2100 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2101 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2102 | struct soc_mixer_control *mc = |
2103 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2104 | unsigned int reg = mc->reg; |
2105 | unsigned int shift = mc->shift; | |
2106 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2107 | int max = mc->max; |
815ecf8d JS |
2108 | unsigned int invert = mc->invert; |
2109 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 2110 | |
2b97eabc RP |
2111 | ucontrol->value.integer.value[0] = |
2112 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
2113 | if (shift != rshift) | |
2114 | ucontrol->value.integer.value[1] = | |
2115 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
2116 | if (invert) { | |
2117 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2118 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2119 | if (shift != rshift) |
2120 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2121 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
2122 | } |
2123 | ||
2124 | return 0; | |
2125 | } | |
2126 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2127 | ||
2128 | /** | |
2129 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2130 | * @kcontrol: mixer control | |
ac11a2b3 | 2131 | * @ucontrol: control element information |
2b97eabc RP |
2132 | * |
2133 | * Callback to set the value of a dapm mixer control. | |
2134 | * | |
2135 | * Returns 0 for success. | |
2136 | */ | |
2137 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2138 | struct snd_ctl_elem_value *ucontrol) | |
2139 | { | |
fafd2176 SW |
2140 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2141 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2142 | struct snd_soc_codec *codec = widget->codec; | |
4eaa9819 JS |
2143 | struct soc_mixer_control *mc = |
2144 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2145 | unsigned int reg = mc->reg; |
2146 | unsigned int shift = mc->shift; | |
4eaa9819 | 2147 | int max = mc->max; |
815ecf8d JS |
2148 | unsigned int mask = (1 << fls(max)) - 1; |
2149 | unsigned int invert = mc->invert; | |
e9cf7049 | 2150 | unsigned int val; |
97404f2e MB |
2151 | int connect, change; |
2152 | struct snd_soc_dapm_update update; | |
fafd2176 | 2153 | int wi; |
2b97eabc RP |
2154 | |
2155 | val = (ucontrol->value.integer.value[0] & mask); | |
2156 | ||
2157 | if (invert) | |
a7a4ac86 | 2158 | val = max - val; |
e9cf7049 | 2159 | mask = mask << shift; |
2b97eabc | 2160 | val = val << shift; |
2b97eabc | 2161 | |
fafd2176 SW |
2162 | if (val) |
2163 | /* new connection */ | |
2164 | connect = invert ? 0 : 1; | |
2165 | else | |
2166 | /* old connection must be powered down */ | |
2167 | connect = invert ? 1 : 0; | |
2168 | ||
2169 | mutex_lock(&codec->mutex); | |
2b97eabc | 2170 | |
e9cf7049 | 2171 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2172 | if (change) { |
fafd2176 SW |
2173 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2174 | widget = wlist->widgets[wi]; | |
283375ce | 2175 | |
fafd2176 | 2176 | widget->value = val; |
97404f2e | 2177 | |
fafd2176 SW |
2178 | update.kcontrol = kcontrol; |
2179 | update.widget = widget; | |
2180 | update.reg = reg; | |
2181 | update.mask = mask; | |
2182 | update.val = val; | |
2183 | widget->dapm->update = &update; | |
97404f2e | 2184 | |
fafd2176 SW |
2185 | dapm_mixer_update_power(widget, kcontrol, connect); |
2186 | ||
2187 | widget->dapm->update = NULL; | |
2188 | } | |
283375ce MB |
2189 | } |
2190 | ||
fafd2176 | 2191 | mutex_unlock(&codec->mutex); |
97404f2e | 2192 | return 0; |
2b97eabc RP |
2193 | } |
2194 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2195 | ||
2196 | /** | |
2197 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2198 | * @kcontrol: mixer control | |
ac11a2b3 | 2199 | * @ucontrol: control element information |
2b97eabc RP |
2200 | * |
2201 | * Callback to get the value of a dapm enumerated double mixer control. | |
2202 | * | |
2203 | * Returns 0 for success. | |
2204 | */ | |
2205 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2206 | struct snd_ctl_elem_value *ucontrol) | |
2207 | { | |
fafd2176 SW |
2208 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2209 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2210 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2211 | unsigned int val, bitmask; |
2b97eabc | 2212 | |
f8ba0b7b | 2213 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
2214 | ; |
2215 | val = snd_soc_read(widget->codec, e->reg); | |
2216 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
2217 | if (e->shift_l != e->shift_r) | |
2218 | ucontrol->value.enumerated.item[1] = | |
2219 | (val >> e->shift_r) & (bitmask - 1); | |
2220 | ||
2221 | return 0; | |
2222 | } | |
2223 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2224 | ||
2225 | /** | |
2226 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2227 | * @kcontrol: mixer control | |
ac11a2b3 | 2228 | * @ucontrol: control element information |
2b97eabc RP |
2229 | * |
2230 | * Callback to set the value of a dapm enumerated double mixer control. | |
2231 | * | |
2232 | * Returns 0 for success. | |
2233 | */ | |
2234 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2235 | struct snd_ctl_elem_value *ucontrol) | |
2236 | { | |
fafd2176 SW |
2237 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2238 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2239 | struct snd_soc_codec *codec = widget->codec; | |
2b97eabc | 2240 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2241 | unsigned int val, mux, change; |
46f5822f | 2242 | unsigned int mask, bitmask; |
97404f2e | 2243 | struct snd_soc_dapm_update update; |
fafd2176 | 2244 | int wi; |
2b97eabc | 2245 | |
f8ba0b7b | 2246 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 2247 | ; |
f8ba0b7b | 2248 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2249 | return -EINVAL; |
2250 | mux = ucontrol->value.enumerated.item[0]; | |
2251 | val = mux << e->shift_l; | |
2252 | mask = (bitmask - 1) << e->shift_l; | |
2253 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2254 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2255 | return -EINVAL; |
2256 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2257 | mask |= (bitmask - 1) << e->shift_r; | |
2258 | } | |
2259 | ||
fafd2176 SW |
2260 | mutex_lock(&codec->mutex); |
2261 | ||
3a65577d | 2262 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2263 | if (change) { |
2264 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2265 | widget = wlist->widgets[wi]; | |
2266 | ||
2267 | widget->value = val; | |
1642e3d4 | 2268 | |
fafd2176 SW |
2269 | update.kcontrol = kcontrol; |
2270 | update.widget = widget; | |
2271 | update.reg = e->reg; | |
2272 | update.mask = mask; | |
2273 | update.val = val; | |
2274 | widget->dapm->update = &update; | |
1642e3d4 | 2275 | |
fafd2176 | 2276 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 2277 | |
fafd2176 SW |
2278 | widget->dapm->update = NULL; |
2279 | } | |
2280 | } | |
2b97eabc | 2281 | |
fafd2176 | 2282 | mutex_unlock(&codec->mutex); |
97404f2e | 2283 | return change; |
2b97eabc RP |
2284 | } |
2285 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2286 | ||
d2b247a8 MB |
2287 | /** |
2288 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2289 | * @kcontrol: mixer control | |
2290 | * @ucontrol: control element information | |
2291 | * | |
2292 | * Returns 0 for success. | |
2293 | */ | |
2294 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2295 | struct snd_ctl_elem_value *ucontrol) | |
2296 | { | |
fafd2176 SW |
2297 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2298 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2299 | |
2300 | ucontrol->value.enumerated.item[0] = widget->value; | |
2301 | ||
2302 | return 0; | |
2303 | } | |
2304 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2305 | ||
2306 | /** | |
2307 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2308 | * @kcontrol: mixer control | |
2309 | * @ucontrol: control element information | |
2310 | * | |
2311 | * Returns 0 for success. | |
2312 | */ | |
2313 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2314 | struct snd_ctl_elem_value *ucontrol) | |
2315 | { | |
fafd2176 SW |
2316 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2317 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2318 | struct snd_soc_codec *codec = widget->codec; | |
d2b247a8 MB |
2319 | struct soc_enum *e = |
2320 | (struct soc_enum *)kcontrol->private_value; | |
2321 | int change; | |
2322 | int ret = 0; | |
fafd2176 | 2323 | int wi; |
d2b247a8 MB |
2324 | |
2325 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2326 | return -EINVAL; | |
2327 | ||
fafd2176 | 2328 | mutex_lock(&codec->mutex); |
d2b247a8 MB |
2329 | |
2330 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2331 | if (change) { |
2332 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2333 | widget = wlist->widgets[wi]; | |
2334 | ||
2335 | widget->value = ucontrol->value.enumerated.item[0]; | |
2336 | ||
2337 | dapm_mux_update_power(widget, kcontrol, change, | |
2338 | widget->value, e); | |
2339 | } | |
2340 | } | |
d2b247a8 | 2341 | |
fafd2176 | 2342 | mutex_unlock(&codec->mutex); |
d2b247a8 MB |
2343 | return ret; |
2344 | } | |
2345 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2346 | ||
2e72f8e3 PU |
2347 | /** |
2348 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2349 | * callback | |
2350 | * @kcontrol: mixer control | |
2351 | * @ucontrol: control element information | |
2352 | * | |
2353 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2354 | * | |
2355 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2356 | * used for handling bitfield coded enumeration for example. | |
2357 | * | |
2358 | * Returns 0 for success. | |
2359 | */ | |
2360 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2361 | struct snd_ctl_elem_value *ucontrol) | |
2362 | { | |
fafd2176 SW |
2363 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2364 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2365 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2366 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2367 | |
2368 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2369 | val = (reg_val >> e->shift_l) & e->mask; | |
2370 | for (mux = 0; mux < e->max; mux++) { | |
2371 | if (val == e->values[mux]) | |
2372 | break; | |
2373 | } | |
2374 | ucontrol->value.enumerated.item[0] = mux; | |
2375 | if (e->shift_l != e->shift_r) { | |
2376 | val = (reg_val >> e->shift_r) & e->mask; | |
2377 | for (mux = 0; mux < e->max; mux++) { | |
2378 | if (val == e->values[mux]) | |
2379 | break; | |
2380 | } | |
2381 | ucontrol->value.enumerated.item[1] = mux; | |
2382 | } | |
2383 | ||
2384 | return 0; | |
2385 | } | |
2386 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2387 | ||
2388 | /** | |
2389 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2390 | * callback | |
2391 | * @kcontrol: mixer control | |
2392 | * @ucontrol: control element information | |
2393 | * | |
2394 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2395 | * | |
2396 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2397 | * used for handling bitfield coded enumeration for example. | |
2398 | * | |
2399 | * Returns 0 for success. | |
2400 | */ | |
2401 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2402 | struct snd_ctl_elem_value *ucontrol) | |
2403 | { | |
fafd2176 SW |
2404 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2405 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2406 | struct snd_soc_codec *codec = widget->codec; | |
74155556 | 2407 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2408 | unsigned int val, mux, change; |
46f5822f | 2409 | unsigned int mask; |
97404f2e | 2410 | struct snd_soc_dapm_update update; |
fafd2176 | 2411 | int wi; |
2e72f8e3 PU |
2412 | |
2413 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2414 | return -EINVAL; | |
2415 | mux = ucontrol->value.enumerated.item[0]; | |
2416 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2417 | mask = e->mask << e->shift_l; | |
2418 | if (e->shift_l != e->shift_r) { | |
2419 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2420 | return -EINVAL; | |
2421 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2422 | mask |= e->mask << e->shift_r; | |
2423 | } | |
2424 | ||
fafd2176 SW |
2425 | mutex_lock(&codec->mutex); |
2426 | ||
3a65577d | 2427 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2428 | if (change) { |
2429 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2430 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2431 | |
fafd2176 | 2432 | widget->value = val; |
1642e3d4 | 2433 | |
fafd2176 SW |
2434 | update.kcontrol = kcontrol; |
2435 | update.widget = widget; | |
2436 | update.reg = e->reg; | |
2437 | update.mask = mask; | |
2438 | update.val = val; | |
2439 | widget->dapm->update = &update; | |
1642e3d4 | 2440 | |
fafd2176 SW |
2441 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
2442 | ||
2443 | widget->dapm->update = NULL; | |
2444 | } | |
2445 | } | |
2e72f8e3 | 2446 | |
fafd2176 | 2447 | mutex_unlock(&codec->mutex); |
97404f2e | 2448 | return change; |
2e72f8e3 PU |
2449 | } |
2450 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2451 | ||
8b37dbd2 MB |
2452 | /** |
2453 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2454 | * | |
2455 | * @kcontrol: mixer control | |
2456 | * @uinfo: control element information | |
2457 | * | |
2458 | * Callback to provide information about a pin switch control. | |
2459 | */ | |
2460 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2461 | struct snd_ctl_elem_info *uinfo) | |
2462 | { | |
2463 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2464 | uinfo->count = 1; | |
2465 | uinfo->value.integer.min = 0; | |
2466 | uinfo->value.integer.max = 1; | |
2467 | ||
2468 | return 0; | |
2469 | } | |
2470 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2471 | ||
2472 | /** | |
2473 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2474 | * | |
2475 | * @kcontrol: mixer control | |
2476 | * @ucontrol: Value | |
2477 | */ | |
2478 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2479 | struct snd_ctl_elem_value *ucontrol) | |
2480 | { | |
2481 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2482 | const char *pin = (const char *)kcontrol->private_value; | |
2483 | ||
2484 | mutex_lock(&codec->mutex); | |
2485 | ||
2486 | ucontrol->value.integer.value[0] = | |
ce6120cc | 2487 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
2488 | |
2489 | mutex_unlock(&codec->mutex); | |
2490 | ||
2491 | return 0; | |
2492 | } | |
2493 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2494 | ||
2495 | /** | |
2496 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2497 | * | |
2498 | * @kcontrol: mixer control | |
2499 | * @ucontrol: Value | |
2500 | */ | |
2501 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2502 | struct snd_ctl_elem_value *ucontrol) | |
2503 | { | |
2504 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2505 | const char *pin = (const char *)kcontrol->private_value; | |
2506 | ||
2507 | mutex_lock(&codec->mutex); | |
2508 | ||
2509 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 2510 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 2511 | else |
ce6120cc | 2512 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 2513 | |
ce6120cc | 2514 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
2515 | |
2516 | mutex_unlock(&codec->mutex); | |
2517 | ||
2518 | return 0; | |
2519 | } | |
2520 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2521 | ||
2b97eabc RP |
2522 | /** |
2523 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 2524 | * @dapm: DAPM context |
2b97eabc RP |
2525 | * @widget: widget template |
2526 | * | |
2527 | * Creates a new dapm control based upon the template. | |
2528 | * | |
2529 | * Returns 0 for success else error. | |
2530 | */ | |
ce6120cc | 2531 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
2532 | const struct snd_soc_dapm_widget *widget) |
2533 | { | |
2534 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2535 | size_t name_len; |
2b97eabc RP |
2536 | |
2537 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
2538 | return -ENOMEM; | |
2539 | ||
ead9b919 | 2540 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 2541 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2542 | name_len += 1 + strlen(dapm->codec->name_prefix); |
2543 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2544 | if (w->name == NULL) { | |
2545 | kfree(w); | |
2546 | return -ENOMEM; | |
2547 | } | |
88e8b9a8 | 2548 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2549 | snprintf(w->name, name_len, "%s %s", |
2550 | dapm->codec->name_prefix, widget->name); | |
2551 | else | |
2552 | snprintf(w->name, name_len, "%s", widget->name); | |
2553 | ||
97c866de | 2554 | dapm->n_widgets++; |
ce6120cc LG |
2555 | w->dapm = dapm; |
2556 | w->codec = dapm->codec; | |
b7950641 | 2557 | w->platform = dapm->platform; |
2b97eabc RP |
2558 | INIT_LIST_HEAD(&w->sources); |
2559 | INIT_LIST_HEAD(&w->sinks); | |
2560 | INIT_LIST_HEAD(&w->list); | |
97c866de | 2561 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2562 | |
2563 | /* machine layer set ups unconnected pins and insertions */ | |
2564 | w->connected = 1; | |
2565 | return 0; | |
2566 | } | |
2567 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2568 | ||
4ba1327a MB |
2569 | /** |
2570 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2571 | * @dapm: DAPM context |
4ba1327a MB |
2572 | * @widget: widget array |
2573 | * @num: number of widgets | |
2574 | * | |
2575 | * Creates new DAPM controls based upon the templates. | |
2576 | * | |
2577 | * Returns 0 for success else error. | |
2578 | */ | |
ce6120cc | 2579 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2580 | const struct snd_soc_dapm_widget *widget, |
2581 | int num) | |
2582 | { | |
2583 | int i, ret; | |
2584 | ||
2585 | for (i = 0; i < num; i++) { | |
ce6120cc | 2586 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2587 | if (ret < 0) { |
f7d41ae8 JN |
2588 | dev_err(dapm->dev, |
2589 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2590 | widget->name, ret); | |
4ba1327a | 2591 | return ret; |
b8b33cb5 | 2592 | } |
4ba1327a MB |
2593 | widget++; |
2594 | } | |
2595 | return 0; | |
2596 | } | |
2597 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2598 | ||
ce6120cc | 2599 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2600 | const char *stream, int event) |
2b97eabc RP |
2601 | { |
2602 | struct snd_soc_dapm_widget *w; | |
2603 | ||
97c866de | 2604 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc | 2605 | { |
97c866de | 2606 | if (!w->sname || w->dapm != dapm) |
2b97eabc | 2607 | continue; |
ee47b364 | 2608 | dev_vdbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
f7d41ae8 | 2609 | w->name, w->sname, stream, event); |
2b97eabc RP |
2610 | if (strstr(w->sname, stream)) { |
2611 | switch(event) { | |
2612 | case SND_SOC_DAPM_STREAM_START: | |
2613 | w->active = 1; | |
2614 | break; | |
2615 | case SND_SOC_DAPM_STREAM_STOP: | |
2616 | w->active = 0; | |
2617 | break; | |
2618 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2619 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2620 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2621 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2622 | break; | |
2623 | } | |
2624 | } | |
2625 | } | |
2b97eabc | 2626 | |
ce6120cc | 2627 | dapm_power_widgets(dapm, event); |
64a648c2 LG |
2628 | |
2629 | /* do we need to notify any clients that DAPM stream is complete */ | |
2630 | if (dapm->stream_event) | |
2631 | dapm->stream_event(dapm, event); | |
ce6120cc LG |
2632 | } |
2633 | ||
2634 | /** | |
2635 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2636 | * @rtd: PCM runtime data | |
2637 | * @stream: stream name | |
2638 | * @event: stream event | |
2639 | * | |
2640 | * Sends a stream event to the dapm core. The core then makes any | |
2641 | * necessary widget power changes. | |
2642 | * | |
2643 | * Returns 0 for success else error. | |
2644 | */ | |
2645 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2646 | const char *stream, int event) | |
2647 | { | |
2648 | struct snd_soc_codec *codec = rtd->codec; | |
2649 | ||
2650 | if (stream == NULL) | |
2651 | return 0; | |
2652 | ||
2653 | mutex_lock(&codec->mutex); | |
2654 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2655 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2656 | return 0; |
2657 | } | |
2b97eabc RP |
2658 | |
2659 | /** | |
a5302181 | 2660 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2661 | * @dapm: DAPM context |
a5302181 | 2662 | * @pin: pin name |
2b97eabc | 2663 | * |
74b8f955 | 2664 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2665 | * a valid audio route and active audio stream. |
2666 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2667 | * do any widget power switching. | |
2b97eabc | 2668 | */ |
ce6120cc | 2669 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2670 | { |
ce6120cc | 2671 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2672 | } |
2673 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2674 | |
da34183e MB |
2675 | /** |
2676 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2677 | * @dapm: DAPM context |
da34183e MB |
2678 | * @pin: pin name |
2679 | * | |
2680 | * Enables input/output pin regardless of any other state. This is | |
2681 | * intended for use with microphone bias supplies used in microphone | |
2682 | * jack detection. | |
2683 | * | |
2684 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2685 | * do any widget power switching. | |
2686 | */ | |
ce6120cc LG |
2687 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2688 | const char *pin) | |
da34183e | 2689 | { |
91a5fca4 | 2690 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 2691 | |
91a5fca4 LPC |
2692 | if (!w) { |
2693 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2694 | return -EINVAL; | |
0d86733c MB |
2695 | } |
2696 | ||
91a5fca4 LPC |
2697 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
2698 | w->connected = 1; | |
2699 | w->force = 1; | |
da34183e | 2700 | |
91a5fca4 | 2701 | return 0; |
da34183e MB |
2702 | } |
2703 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2704 | ||
a5302181 LG |
2705 | /** |
2706 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2707 | * @dapm: DAPM context |
a5302181 LG |
2708 | * @pin: pin name |
2709 | * | |
74b8f955 | 2710 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2711 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2712 | * do any widget power switching. | |
2713 | */ | |
ce6120cc LG |
2714 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2715 | const char *pin) | |
a5302181 | 2716 | { |
ce6120cc | 2717 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2718 | } |
a5302181 | 2719 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2720 | |
5817b52a MB |
2721 | /** |
2722 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2723 | * @dapm: DAPM context |
5817b52a MB |
2724 | * @pin: pin name |
2725 | * | |
2726 | * Marks the specified pin as being not connected, disabling it along | |
2727 | * any parent or child widgets. At present this is identical to | |
2728 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2729 | * additional things such as disabling controls which only affect | |
2730 | * paths through the pin. | |
2731 | * | |
2732 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2733 | * do any widget power switching. | |
2734 | */ | |
ce6120cc | 2735 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2736 | { |
ce6120cc | 2737 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2738 | } |
2739 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2740 | ||
eeec12bf | 2741 | /** |
a5302181 | 2742 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2743 | * @dapm: DAPM context |
a5302181 | 2744 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2745 | * |
a5302181 | 2746 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2747 | * |
a5302181 | 2748 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2749 | */ |
ce6120cc LG |
2750 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2751 | const char *pin) | |
eeec12bf | 2752 | { |
91a5fca4 | 2753 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 2754 | |
91a5fca4 LPC |
2755 | if (w) |
2756 | return w->connected; | |
a68b38ad | 2757 | |
eeec12bf GG |
2758 | return 0; |
2759 | } | |
a5302181 | 2760 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2761 | |
1547aba9 MB |
2762 | /** |
2763 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2764 | * @dapm: DAPM context |
1547aba9 MB |
2765 | * @pin: audio signal pin endpoint (or start point) |
2766 | * | |
2767 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2768 | * system is disabled a path between two endpoints flagged as ignoring | |
2769 | * suspend will not be disabled. The path must already be enabled via | |
2770 | * normal means at suspend time, it will not be turned on if it was not | |
2771 | * already enabled. | |
2772 | */ | |
ce6120cc LG |
2773 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2774 | const char *pin) | |
1547aba9 | 2775 | { |
91a5fca4 | 2776 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 2777 | |
91a5fca4 LPC |
2778 | if (!w) { |
2779 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2780 | return -EINVAL; | |
1547aba9 MB |
2781 | } |
2782 | ||
91a5fca4 LPC |
2783 | w->ignore_suspend = 1; |
2784 | ||
2785 | return 0; | |
1547aba9 MB |
2786 | } |
2787 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2788 | ||
2b97eabc RP |
2789 | /** |
2790 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 2791 | * @dapm: DAPM context |
2b97eabc RP |
2792 | * |
2793 | * Free all dapm widgets and resources. | |
2794 | */ | |
ce6120cc | 2795 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2796 | { |
ce6120cc | 2797 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 2798 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 2799 | dapm_free_widgets(dapm); |
7be31be8 | 2800 | list_del(&dapm->list); |
2b97eabc RP |
2801 | } |
2802 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2803 | ||
ce6120cc | 2804 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2805 | { |
51737470 MB |
2806 | struct snd_soc_dapm_widget *w; |
2807 | LIST_HEAD(down_list); | |
2808 | int powerdown = 0; | |
2809 | ||
97c866de JN |
2810 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2811 | if (w->dapm != dapm) | |
2812 | continue; | |
51737470 | 2813 | if (w->power) { |
828a842f | 2814 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 2815 | w->power = 0; |
51737470 MB |
2816 | powerdown = 1; |
2817 | } | |
2818 | } | |
2819 | ||
2820 | /* If there were no widgets to power down we're already in | |
2821 | * standby. | |
2822 | */ | |
2823 | if (powerdown) { | |
ed5a4c47 | 2824 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE); |
828a842f | 2825 | dapm_seq_run(dapm, &down_list, 0, false); |
ed5a4c47 | 2826 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY); |
51737470 | 2827 | } |
f0fba2ad LG |
2828 | } |
2829 | ||
2830 | /* | |
2831 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2832 | */ | |
2833 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2834 | { | |
2835 | struct snd_soc_codec *codec; | |
2836 | ||
ce6120cc LG |
2837 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2838 | soc_dapm_shutdown_codec(&codec->dapm); | |
ed5a4c47 | 2839 | snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF); |
ce6120cc | 2840 | } |
51737470 MB |
2841 | } |
2842 | ||
2b97eabc | 2843 | /* Module information */ |
d331124d | 2844 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2845 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2846 | MODULE_LICENSE("GPL"); |