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) { | |
e56235e0 MB |
680 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
681 | ||
bf3a9e13 MB |
682 | if (path->weak) |
683 | continue; | |
684 | ||
2b97eabc RP |
685 | if (path->walked) |
686 | continue; | |
687 | ||
688 | if (path->sink && path->connect) { | |
689 | path->walked = 1; | |
690 | con += is_connected_output_ep(path->sink); | |
691 | } | |
692 | } | |
693 | ||
694 | return con; | |
695 | } | |
696 | ||
697 | /* | |
698 | * Recursively check for a completed path to an active or physically connected | |
699 | * input widget. Returns number of complete paths. | |
700 | */ | |
701 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
702 | { | |
703 | struct snd_soc_dapm_path *path; | |
704 | int con = 0; | |
705 | ||
de02d078 MB |
706 | DAPM_UPDATE_STAT(widget, path_checks); |
707 | ||
246d0a17 MB |
708 | if (widget->id == snd_soc_dapm_supply) |
709 | return 0; | |
710 | ||
2b97eabc | 711 | /* active stream ? */ |
010ff262 MB |
712 | switch (widget->id) { |
713 | case snd_soc_dapm_dac: | |
714 | case snd_soc_dapm_aif_in: | |
715 | if (widget->active) | |
9949788b | 716 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
717 | default: |
718 | break; | |
719 | } | |
2b97eabc RP |
720 | |
721 | if (widget->connected) { | |
722 | /* connected pin ? */ | |
723 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 724 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
725 | |
726 | /* connected VMID/Bias for lower pops */ | |
727 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 728 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
729 | |
730 | /* connected jack ? */ | |
eaeae5d9 PU |
731 | if (widget->id == snd_soc_dapm_mic || |
732 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 733 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
734 | } |
735 | ||
736 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
737 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
738 | ||
bf3a9e13 MB |
739 | if (path->weak) |
740 | continue; | |
741 | ||
2b97eabc RP |
742 | if (path->walked) |
743 | continue; | |
744 | ||
745 | if (path->source && path->connect) { | |
746 | path->walked = 1; | |
747 | con += is_connected_input_ep(path->source); | |
748 | } | |
749 | } | |
750 | ||
751 | return con; | |
752 | } | |
753 | ||
e2be2ccf JN |
754 | /* |
755 | * Handler for generic register modifier widget. | |
756 | */ | |
757 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
758 | struct snd_kcontrol *kcontrol, int event) | |
759 | { | |
760 | unsigned int val; | |
761 | ||
762 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
763 | val = w->on_val; | |
764 | else | |
765 | val = w->off_val; | |
766 | ||
0445bdf4 | 767 | soc_widget_update_bits(w, -(w->reg + 1), |
e2be2ccf JN |
768 | w->mask << w->shift, val << w->shift); |
769 | ||
770 | return 0; | |
771 | } | |
11589418 | 772 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 773 | |
cd0f2d47 MB |
774 | /* Generic check to see if a widget should be powered. |
775 | */ | |
776 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
777 | { | |
778 | int in, out; | |
779 | ||
de02d078 MB |
780 | DAPM_UPDATE_STAT(w, power_checks); |
781 | ||
cd0f2d47 | 782 | in = is_connected_input_ep(w); |
ce6120cc | 783 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 784 | out = is_connected_output_ep(w); |
ce6120cc | 785 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
786 | return out != 0 && in != 0; |
787 | } | |
788 | ||
6ea31b9f MB |
789 | /* Check to see if an ADC has power */ |
790 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
791 | { | |
792 | int in; | |
793 | ||
de02d078 MB |
794 | DAPM_UPDATE_STAT(w, power_checks); |
795 | ||
6ea31b9f MB |
796 | if (w->active) { |
797 | in = is_connected_input_ep(w); | |
ce6120cc | 798 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
799 | return in != 0; |
800 | } else { | |
801 | return dapm_generic_check_power(w); | |
802 | } | |
803 | } | |
804 | ||
805 | /* Check to see if a DAC has power */ | |
806 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
807 | { | |
808 | int out; | |
809 | ||
de02d078 MB |
810 | DAPM_UPDATE_STAT(w, power_checks); |
811 | ||
6ea31b9f MB |
812 | if (w->active) { |
813 | out = is_connected_output_ep(w); | |
ce6120cc | 814 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
815 | return out != 0; |
816 | } else { | |
817 | return dapm_generic_check_power(w); | |
818 | } | |
819 | } | |
820 | ||
246d0a17 MB |
821 | /* Check to see if a power supply is needed */ |
822 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
823 | { | |
824 | struct snd_soc_dapm_path *path; | |
825 | int power = 0; | |
826 | ||
de02d078 MB |
827 | DAPM_UPDATE_STAT(w, power_checks); |
828 | ||
246d0a17 MB |
829 | /* Check if one of our outputs is connected */ |
830 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
831 | DAPM_UPDATE_STAT(w, neighbour_checks); |
832 | ||
bf3a9e13 MB |
833 | if (path->weak) |
834 | continue; | |
835 | ||
215edda3 MB |
836 | if (path->connected && |
837 | !path->connected(path->source, path->sink)) | |
838 | continue; | |
839 | ||
3017358a MB |
840 | if (!path->sink) |
841 | continue; | |
842 | ||
843 | if (path->sink->force) { | |
844 | power = 1; | |
845 | break; | |
846 | } | |
847 | ||
848 | if (path->sink->power_check && | |
246d0a17 MB |
849 | path->sink->power_check(path->sink)) { |
850 | power = 1; | |
851 | break; | |
852 | } | |
853 | } | |
854 | ||
ce6120cc | 855 | dapm_clear_walk(w->dapm); |
246d0a17 MB |
856 | |
857 | return power; | |
858 | } | |
859 | ||
35c64bca MB |
860 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
861 | { | |
862 | return 1; | |
863 | } | |
864 | ||
38357ab2 MB |
865 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
866 | struct snd_soc_dapm_widget *b, | |
828a842f | 867 | bool power_up) |
42aa3418 | 868 | { |
828a842f MB |
869 | int *sort; |
870 | ||
871 | if (power_up) | |
872 | sort = dapm_up_seq; | |
873 | else | |
874 | sort = dapm_down_seq; | |
875 | ||
38357ab2 MB |
876 | if (sort[a->id] != sort[b->id]) |
877 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
878 | if (a->subseq != b->subseq) { |
879 | if (power_up) | |
880 | return a->subseq - b->subseq; | |
881 | else | |
882 | return b->subseq - a->subseq; | |
883 | } | |
b22ead2a MB |
884 | if (a->reg != b->reg) |
885 | return a->reg - b->reg; | |
84dab567 MB |
886 | if (a->dapm != b->dapm) |
887 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 888 | |
38357ab2 MB |
889 | return 0; |
890 | } | |
42aa3418 | 891 | |
38357ab2 MB |
892 | /* Insert a widget in order into a DAPM power sequence. */ |
893 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
894 | struct list_head *list, | |
828a842f | 895 | bool power_up) |
38357ab2 MB |
896 | { |
897 | struct snd_soc_dapm_widget *w; | |
898 | ||
899 | list_for_each_entry(w, list, power_list) | |
828a842f | 900 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
901 | list_add_tail(&new_widget->power_list, &w->power_list); |
902 | return; | |
903 | } | |
904 | ||
905 | list_add_tail(&new_widget->power_list, list); | |
906 | } | |
907 | ||
68f89ad8 MB |
908 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
909 | struct snd_soc_dapm_widget *w, int event) | |
910 | { | |
911 | struct snd_soc_card *card = dapm->card; | |
912 | const char *ev_name; | |
913 | int power, ret; | |
914 | ||
915 | switch (event) { | |
916 | case SND_SOC_DAPM_PRE_PMU: | |
917 | ev_name = "PRE_PMU"; | |
918 | power = 1; | |
919 | break; | |
920 | case SND_SOC_DAPM_POST_PMU: | |
921 | ev_name = "POST_PMU"; | |
922 | power = 1; | |
923 | break; | |
924 | case SND_SOC_DAPM_PRE_PMD: | |
925 | ev_name = "PRE_PMD"; | |
926 | power = 0; | |
927 | break; | |
928 | case SND_SOC_DAPM_POST_PMD: | |
929 | ev_name = "POST_PMD"; | |
930 | power = 0; | |
931 | break; | |
932 | default: | |
933 | BUG(); | |
934 | return; | |
935 | } | |
936 | ||
937 | if (w->power != power) | |
938 | return; | |
939 | ||
940 | if (w->event && (w->event_flags & event)) { | |
941 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
942 | w->name, ev_name); | |
84e90930 | 943 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 944 | ret = w->event(w, NULL, event); |
84e90930 | 945 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
946 | if (ret < 0) |
947 | pr_err("%s: %s event failed: %d\n", | |
948 | ev_name, w->name, ret); | |
949 | } | |
950 | } | |
951 | ||
b22ead2a | 952 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 953 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 954 | struct list_head *pending) |
163cac06 | 955 | { |
3a45b867 | 956 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
957 | struct snd_soc_dapm_widget *w; |
958 | int reg, power; | |
b22ead2a MB |
959 | unsigned int value = 0; |
960 | unsigned int mask = 0; | |
961 | unsigned int cur_mask; | |
962 | ||
963 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
964 | power_list)->reg; | |
965 | ||
966 | list_for_each_entry(w, pending, power_list) { | |
967 | cur_mask = 1 << w->shift; | |
968 | BUG_ON(reg != w->reg); | |
969 | ||
970 | if (w->invert) | |
971 | power = !w->power; | |
972 | else | |
973 | power = w->power; | |
974 | ||
975 | mask |= cur_mask; | |
976 | if (power) | |
977 | value |= cur_mask; | |
978 | ||
fd8d3bc0 | 979 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
980 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
981 | w->name, reg, value, mask); | |
81628103 | 982 | |
68f89ad8 MB |
983 | /* Check for events */ |
984 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
985 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
986 | } |
987 | ||
988 | if (reg >= 0) { | |
29376bc7 MB |
989 | /* Any widget will do, they should all be updating the |
990 | * same register. | |
991 | */ | |
992 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
993 | power_list); | |
994 | ||
fd8d3bc0 | 995 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 996 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
997 | value, mask, reg, card->pop_time); |
998 | pop_wait(card->pop_time); | |
0445bdf4 | 999 | soc_widget_update_bits(w, reg, mask, value); |
b22ead2a MB |
1000 | } |
1001 | ||
81628103 | 1002 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1003 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1004 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1005 | } |
b22ead2a | 1006 | } |
42aa3418 | 1007 | |
b22ead2a MB |
1008 | /* Apply a DAPM power sequence. |
1009 | * | |
1010 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1011 | * order to minimise the number of writes to the device required | |
1012 | * multiple widgets will be updated in a single write where possible. | |
1013 | * Currently anything that requires more than a single write is not | |
1014 | * handled. | |
1015 | */ | |
ce6120cc | 1016 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1017 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1018 | { |
1019 | struct snd_soc_dapm_widget *w, *n; | |
1020 | LIST_HEAD(pending); | |
1021 | int cur_sort = -1; | |
20e4859d | 1022 | int cur_subseq = -1; |
b22ead2a | 1023 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1024 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1025 | int ret, i; |
828a842f MB |
1026 | int *sort; |
1027 | ||
1028 | if (power_up) | |
1029 | sort = dapm_up_seq; | |
1030 | else | |
1031 | sort = dapm_down_seq; | |
163cac06 | 1032 | |
b22ead2a MB |
1033 | list_for_each_entry_safe(w, n, list, power_list) { |
1034 | ret = 0; | |
1035 | ||
1036 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1037 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1038 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1039 | if (!list_empty(&pending)) |
7be31be8 | 1040 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1041 | |
474b62d6 MB |
1042 | if (cur_dapm && cur_dapm->seq_notifier) { |
1043 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1044 | if (sort[i] == cur_sort) | |
1045 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1046 | i, |
1047 | cur_subseq); | |
474b62d6 MB |
1048 | } |
1049 | ||
b22ead2a MB |
1050 | INIT_LIST_HEAD(&pending); |
1051 | cur_sort = -1; | |
b0b3e6f8 | 1052 | cur_subseq = INT_MIN; |
b22ead2a | 1053 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1054 | cur_dapm = NULL; |
b22ead2a MB |
1055 | } |
1056 | ||
163cac06 MB |
1057 | switch (w->id) { |
1058 | case snd_soc_dapm_pre: | |
1059 | if (!w->event) | |
b22ead2a MB |
1060 | list_for_each_entry_safe_continue(w, n, list, |
1061 | power_list); | |
163cac06 | 1062 | |
b22ead2a | 1063 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1064 | ret = w->event(w, |
1065 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1066 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1067 | ret = w->event(w, |
1068 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1069 | break; |
1070 | ||
1071 | case snd_soc_dapm_post: | |
1072 | if (!w->event) | |
b22ead2a MB |
1073 | list_for_each_entry_safe_continue(w, n, list, |
1074 | power_list); | |
163cac06 | 1075 | |
b22ead2a | 1076 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1077 | ret = w->event(w, |
1078 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1079 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1080 | ret = w->event(w, |
1081 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1082 | break; |
1083 | ||
b22ead2a | 1084 | default: |
81628103 MB |
1085 | /* Queue it up for application */ |
1086 | cur_sort = sort[w->id]; | |
20e4859d | 1087 | cur_subseq = w->subseq; |
81628103 | 1088 | cur_reg = w->reg; |
7be31be8 | 1089 | cur_dapm = w->dapm; |
81628103 MB |
1090 | list_move(&w->power_list, &pending); |
1091 | break; | |
163cac06 | 1092 | } |
b22ead2a MB |
1093 | |
1094 | if (ret < 0) | |
f7d41ae8 JN |
1095 | dev_err(w->dapm->dev, |
1096 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1097 | } |
b22ead2a MB |
1098 | |
1099 | if (!list_empty(&pending)) | |
28e86808 | 1100 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1101 | |
1102 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1103 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1104 | if (sort[i] == cur_sort) | |
1105 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1106 | i, cur_subseq); |
474b62d6 | 1107 | } |
42aa3418 MB |
1108 | } |
1109 | ||
97404f2e MB |
1110 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1111 | { | |
1112 | struct snd_soc_dapm_update *update = dapm->update; | |
1113 | struct snd_soc_dapm_widget *w; | |
1114 | int ret; | |
1115 | ||
1116 | if (!update) | |
1117 | return; | |
1118 | ||
1119 | w = update->widget; | |
1120 | ||
1121 | if (w->event && | |
1122 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1123 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1124 | if (ret != 0) | |
1125 | pr_err("%s DAPM pre-event failed: %d\n", | |
1126 | w->name, ret); | |
1127 | } | |
1128 | ||
1129 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, | |
1130 | update->val); | |
1131 | if (ret < 0) | |
1132 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1133 | ||
1134 | if (w->event && | |
1135 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1136 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1137 | if (ret != 0) | |
1138 | pr_err("%s DAPM post-event failed: %d\n", | |
1139 | w->name, ret); | |
1140 | } | |
1141 | } | |
1142 | ||
9d0624a7 MB |
1143 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1144 | * they're changing state. | |
1145 | */ | |
1146 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1147 | { | |
1148 | struct snd_soc_dapm_context *d = data; | |
1149 | int ret; | |
1150 | ||
56fba41f MB |
1151 | /* If we're off and we're not supposed to be go into STANDBY */ |
1152 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1153 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1154 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1155 | if (ret != 0) | |
1156 | dev_err(d->dev, | |
1157 | "Failed to turn on bias: %d\n", ret); | |
1158 | } | |
1159 | ||
56fba41f MB |
1160 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1161 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1162 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1163 | if (ret != 0) | |
1164 | dev_err(d->dev, | |
1165 | "Failed to prepare bias: %d\n", ret); | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | /* Async callback run prior to DAPM sequences - brings to their final | |
1170 | * state. | |
1171 | */ | |
1172 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1173 | { | |
1174 | struct snd_soc_dapm_context *d = data; | |
1175 | int ret; | |
1176 | ||
1177 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1178 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1179 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1180 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1181 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1182 | if (ret != 0) | |
1183 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1184 | ret); | |
1185 | } | |
97404f2e | 1186 | |
9d0624a7 | 1187 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1188 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1189 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1190 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1191 | if (ret != 0) | |
1192 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
1193 | } | |
1194 | ||
1195 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1196 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1197 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1198 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1199 | if (ret != 0) | |
1200 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1201 | ret); | |
1202 | } | |
1203 | } | |
97404f2e | 1204 | |
05623c43 MB |
1205 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1206 | struct list_head *up_list, | |
1207 | struct list_head *down_list) | |
1208 | { | |
1209 | if (w->power == power) | |
1210 | return; | |
1211 | ||
1212 | trace_snd_soc_dapm_widget_power(w, power); | |
1213 | ||
1214 | if (power) | |
1215 | dapm_seq_insert(w, up_list, true); | |
1216 | else | |
1217 | dapm_seq_insert(w, down_list, false); | |
1218 | ||
1219 | w->power = power; | |
1220 | } | |
1221 | ||
7c81beb0 MB |
1222 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1223 | struct list_head *up_list, | |
1224 | struct list_head *down_list) | |
1225 | { | |
7c81beb0 MB |
1226 | int power; |
1227 | ||
1228 | switch (w->id) { | |
1229 | case snd_soc_dapm_pre: | |
1230 | dapm_seq_insert(w, down_list, false); | |
1231 | break; | |
1232 | case snd_soc_dapm_post: | |
1233 | dapm_seq_insert(w, up_list, true); | |
1234 | break; | |
1235 | ||
1236 | default: | |
7c81beb0 MB |
1237 | if (!w->force) |
1238 | power = w->power_check(w); | |
1239 | else | |
1240 | power = 1; | |
1241 | ||
05623c43 | 1242 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1243 | break; |
1244 | } | |
1245 | } | |
1246 | ||
2b97eabc RP |
1247 | /* |
1248 | * Scan each dapm widget for complete audio path. | |
1249 | * A complete path is a route that has valid endpoints i.e.:- | |
1250 | * | |
1251 | * o DAC to output pin. | |
1252 | * o Input Pin to ADC. | |
1253 | * o Input pin to Output pin (bypass, sidetone) | |
1254 | * o DAC to ADC (loopback). | |
1255 | */ | |
ce6120cc | 1256 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1257 | { |
12ea2c78 | 1258 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1259 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1260 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1261 | LIST_HEAD(up_list); |
1262 | LIST_HEAD(down_list); | |
9d0624a7 | 1263 | LIST_HEAD(async_domain); |
56fba41f | 1264 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1265 | |
84e90930 MB |
1266 | trace_snd_soc_dapm_start(card); |
1267 | ||
56fba41f MB |
1268 | list_for_each_entry(d, &card->dapm_list, list) { |
1269 | if (d->n_widgets || d->codec == NULL) { | |
1270 | if (d->idle_bias_off) | |
1271 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1272 | else | |
1273 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1274 | } | |
1275 | } | |
7be31be8 | 1276 | |
de02d078 MB |
1277 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
1278 | ||
6d3ddc81 MB |
1279 | /* Check which widgets we need to power and store them in |
1280 | * lists indicating if they should be powered up or down. | |
1281 | */ | |
97c866de | 1282 | list_for_each_entry(w, &card->widgets, list) { |
7c81beb0 | 1283 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1284 | } |
1285 | ||
f9de6d74 MB |
1286 | list_for_each_entry(w, &card->widgets, list) { |
1287 | if (w->power) { | |
1288 | d = w->dapm; | |
1289 | ||
1290 | /* Supplies and micbiases only bring the | |
1291 | * context up to STANDBY as unless something | |
1292 | * else is active and passing audio they | |
1293 | * generally don't require full power. | |
1294 | */ | |
1295 | switch (w->id) { | |
1296 | case snd_soc_dapm_supply: | |
1297 | case snd_soc_dapm_micbias: | |
1298 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1299 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1300 | break; | |
1301 | default: | |
1302 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1303 | break; | |
1304 | } | |
1305 | } | |
1306 | ||
1307 | } | |
1308 | ||
b14b76a5 MB |
1309 | /* If there are no DAPM widgets then try to figure out power from the |
1310 | * event type. | |
1311 | */ | |
97c866de | 1312 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1313 | switch (event) { |
1314 | case SND_SOC_DAPM_STREAM_START: | |
1315 | case SND_SOC_DAPM_STREAM_RESUME: | |
56fba41f | 1316 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
b14b76a5 | 1317 | break; |
862af8ad | 1318 | case SND_SOC_DAPM_STREAM_STOP: |
56fba41f MB |
1319 | if (dapm->codec->active) |
1320 | dapm->target_bias_level = SND_SOC_BIAS_ON; | |
1321 | else | |
1322 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; | |
862af8ad | 1323 | break; |
50b6bce5 | 1324 | case SND_SOC_DAPM_STREAM_SUSPEND: |
56fba41f | 1325 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; |
50b6bce5 | 1326 | break; |
b14b76a5 | 1327 | case SND_SOC_DAPM_STREAM_NOP: |
56fba41f | 1328 | dapm->target_bias_level = dapm->bias_level; |
50b6bce5 | 1329 | break; |
b14b76a5 MB |
1330 | default: |
1331 | break; | |
1332 | } | |
1333 | } | |
1334 | ||
85a843c5 MB |
1335 | /* Force all contexts in the card to the same bias state if |
1336 | * they're not ground referenced. | |
1337 | */ | |
56fba41f | 1338 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1339 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1340 | if (d->target_bias_level > bias) |
1341 | bias = d->target_bias_level; | |
52ba67bf | 1342 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1343 | if (!d->idle_bias_off) |
1344 | d->target_bias_level = bias; | |
52ba67bf | 1345 | |
de02d078 | 1346 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1347 | |
9d0624a7 MB |
1348 | /* Run all the bias changes in parallel */ |
1349 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1350 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1351 | &async_domain); | |
1352 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1353 | |
6d3ddc81 | 1354 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1355 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1356 | |
97404f2e MB |
1357 | dapm_widget_update(dapm); |
1358 | ||
6d3ddc81 | 1359 | /* Now power up. */ |
828a842f | 1360 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1361 | |
9d0624a7 MB |
1362 | /* Run all the bias changes in parallel */ |
1363 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1364 | async_schedule_domain(dapm_post_sequence_async, d, | |
1365 | &async_domain); | |
1366 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1367 | |
fd8d3bc0 JN |
1368 | pop_dbg(dapm->dev, card->pop_time, |
1369 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1370 | pop_wait(card->pop_time); |
cb507e7e | 1371 | |
84e90930 MB |
1372 | trace_snd_soc_dapm_done(card); |
1373 | ||
42aa3418 | 1374 | return 0; |
2b97eabc RP |
1375 | } |
1376 | ||
79fb9387 MB |
1377 | #ifdef CONFIG_DEBUG_FS |
1378 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1379 | { | |
1380 | file->private_data = inode->i_private; | |
1381 | return 0; | |
1382 | } | |
1383 | ||
1384 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1385 | char __user *user_buf, | |
1386 | size_t count, loff_t *ppos) | |
1387 | { | |
1388 | struct snd_soc_dapm_widget *w = file->private_data; | |
1389 | char *buf; | |
1390 | int in, out; | |
1391 | ssize_t ret; | |
1392 | struct snd_soc_dapm_path *p = NULL; | |
1393 | ||
1394 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1395 | if (!buf) | |
1396 | return -ENOMEM; | |
1397 | ||
1398 | in = is_connected_input_ep(w); | |
ce6120cc | 1399 | dapm_clear_walk(w->dapm); |
79fb9387 | 1400 | out = is_connected_output_ep(w); |
ce6120cc | 1401 | dapm_clear_walk(w->dapm); |
79fb9387 | 1402 | |
d033c36a | 1403 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1404 | w->name, w->power ? "On" : "Off", in, out); |
1405 | ||
d033c36a MB |
1406 | if (w->reg >= 0) |
1407 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1408 | " - R%d(0x%x) bit %d", | |
1409 | w->reg, w->reg, w->shift); | |
1410 | ||
1411 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1412 | ||
3eef08ba MB |
1413 | if (w->sname) |
1414 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1415 | w->sname, | |
1416 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1417 | |
1418 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1419 | if (p->connected && !p->connected(w, p->sink)) |
1420 | continue; | |
1421 | ||
79fb9387 MB |
1422 | if (p->connect) |
1423 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1424 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1425 | p->name ? p->name : "static", |
1426 | p->source->name); | |
1427 | } | |
1428 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1429 | if (p->connected && !p->connected(w, p->sink)) |
1430 | continue; | |
1431 | ||
79fb9387 MB |
1432 | if (p->connect) |
1433 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1434 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1435 | p->name ? p->name : "static", |
1436 | p->sink->name); | |
1437 | } | |
1438 | ||
1439 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1440 | ||
1441 | kfree(buf); | |
1442 | return ret; | |
1443 | } | |
1444 | ||
1445 | static const struct file_operations dapm_widget_power_fops = { | |
1446 | .open = dapm_widget_power_open_file, | |
1447 | .read = dapm_widget_power_read_file, | |
6038f373 | 1448 | .llseek = default_llseek, |
79fb9387 MB |
1449 | }; |
1450 | ||
ef49e4fa MB |
1451 | static int dapm_bias_open_file(struct inode *inode, struct file *file) |
1452 | { | |
1453 | file->private_data = inode->i_private; | |
1454 | return 0; | |
1455 | } | |
1456 | ||
1457 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, | |
1458 | size_t count, loff_t *ppos) | |
1459 | { | |
1460 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1461 | char *level; | |
1462 | ||
1463 | switch (dapm->bias_level) { | |
1464 | case SND_SOC_BIAS_ON: | |
1465 | level = "On\n"; | |
1466 | break; | |
1467 | case SND_SOC_BIAS_PREPARE: | |
1468 | level = "Prepare\n"; | |
1469 | break; | |
1470 | case SND_SOC_BIAS_STANDBY: | |
1471 | level = "Standby\n"; | |
1472 | break; | |
1473 | case SND_SOC_BIAS_OFF: | |
1474 | level = "Off\n"; | |
1475 | break; | |
1476 | default: | |
1477 | BUG(); | |
1478 | level = "Unknown\n"; | |
1479 | break; | |
1480 | } | |
1481 | ||
1482 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1483 | strlen(level)); | |
1484 | } | |
1485 | ||
1486 | static const struct file_operations dapm_bias_fops = { | |
1487 | .open = dapm_bias_open_file, | |
1488 | .read = dapm_bias_read_file, | |
1489 | .llseek = default_llseek, | |
1490 | }; | |
1491 | ||
8eecaf62 LPC |
1492 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1493 | struct dentry *parent) | |
79fb9387 | 1494 | { |
79fb9387 MB |
1495 | struct dentry *d; |
1496 | ||
8eecaf62 LPC |
1497 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1498 | ||
1499 | if (!dapm->debugfs_dapm) { | |
1500 | printk(KERN_WARNING | |
1501 | "Failed to create DAPM debugfs directory\n"); | |
79fb9387 | 1502 | return; |
8eecaf62 | 1503 | } |
79fb9387 | 1504 | |
ef49e4fa MB |
1505 | d = debugfs_create_file("bias_level", 0444, |
1506 | dapm->debugfs_dapm, dapm, | |
1507 | &dapm_bias_fops); | |
1508 | if (!d) | |
1509 | dev_warn(dapm->dev, | |
1510 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1511 | } |
ef49e4fa | 1512 | |
d5d1e0be LPC |
1513 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1514 | { | |
1515 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1516 | struct dentry *d; | |
79fb9387 | 1517 | |
d5d1e0be LPC |
1518 | if (!dapm->debugfs_dapm || !w->name) |
1519 | return; | |
1520 | ||
1521 | d = debugfs_create_file(w->name, 0444, | |
1522 | dapm->debugfs_dapm, w, | |
1523 | &dapm_widget_power_fops); | |
1524 | if (!d) | |
1525 | dev_warn(w->dapm->dev, | |
1526 | "ASoC: Failed to create %s debugfs file\n", | |
1527 | w->name); | |
79fb9387 | 1528 | } |
d5d1e0be | 1529 | |
6c45e126 LPC |
1530 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1531 | { | |
1532 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1533 | } | |
1534 | ||
79fb9387 | 1535 | #else |
8eecaf62 LPC |
1536 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1537 | struct dentry *parent) | |
79fb9387 MB |
1538 | { |
1539 | } | |
d5d1e0be LPC |
1540 | |
1541 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1542 | { | |
1543 | } | |
1544 | ||
6c45e126 LPC |
1545 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1546 | { | |
1547 | } | |
1548 | ||
79fb9387 MB |
1549 | #endif |
1550 | ||
2b97eabc | 1551 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1552 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1553 | struct snd_kcontrol *kcontrol, int change, |
1554 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1555 | { |
1556 | struct snd_soc_dapm_path *path; | |
1557 | int found = 0; | |
1558 | ||
eff317d0 | 1559 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1560 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1561 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1562 | return -ENODEV; |
1563 | ||
3a65577d | 1564 | if (!change) |
2b97eabc RP |
1565 | return 0; |
1566 | ||
1567 | /* find dapm widget path assoc with kcontrol */ | |
8ddab3f5 | 1568 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1569 | if (path->kcontrol != kcontrol) |
1570 | continue; | |
1571 | ||
cb01e2b9 | 1572 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1573 | continue; |
1574 | ||
1575 | found = 1; | |
1576 | /* we now need to match the string in the enum to the path */ | |
cb01e2b9 | 1577 | if (!(strcmp(path->name, e->texts[mux]))) |
2b97eabc RP |
1578 | path->connect = 1; /* new connection */ |
1579 | else | |
1580 | path->connect = 0; /* old connection must be powered down */ | |
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 | 1588 | |
1b075e3f | 1589 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1590 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1591 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1592 | { |
1593 | struct snd_soc_dapm_path *path; | |
1594 | int found = 0; | |
1595 | ||
1b075e3f | 1596 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1597 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1598 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1599 | return -ENODEV; |
1600 | ||
2b97eabc | 1601 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1602 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1603 | if (path->kcontrol != kcontrol) |
1604 | continue; | |
1605 | ||
1606 | /* found, now check type */ | |
1607 | found = 1; | |
283375ce | 1608 | path->connect = connect; |
2b97eabc RP |
1609 | } |
1610 | ||
b91b8fa0 | 1611 | if (found) |
ce6120cc | 1612 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
1613 | |
1614 | return 0; | |
1615 | } | |
2b97eabc RP |
1616 | |
1617 | /* show dapm widget status in sys fs */ | |
1618 | static ssize_t dapm_widget_show(struct device *dev, | |
1619 | struct device_attribute *attr, char *buf) | |
1620 | { | |
f0fba2ad LG |
1621 | struct snd_soc_pcm_runtime *rtd = |
1622 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1623 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1624 | struct snd_soc_dapm_widget *w; |
1625 | int count = 0; | |
1626 | char *state = "not set"; | |
1627 | ||
97c866de JN |
1628 | list_for_each_entry(w, &codec->card->widgets, list) { |
1629 | if (w->dapm != &codec->dapm) | |
1630 | continue; | |
2b97eabc RP |
1631 | |
1632 | /* only display widgets that burnm power */ | |
1633 | switch (w->id) { | |
1634 | case snd_soc_dapm_hp: | |
1635 | case snd_soc_dapm_mic: | |
1636 | case snd_soc_dapm_spk: | |
1637 | case snd_soc_dapm_line: | |
1638 | case snd_soc_dapm_micbias: | |
1639 | case snd_soc_dapm_dac: | |
1640 | case snd_soc_dapm_adc: | |
1641 | case snd_soc_dapm_pga: | |
d88429a6 | 1642 | case snd_soc_dapm_out_drv: |
2b97eabc | 1643 | case snd_soc_dapm_mixer: |
ca9c1aae | 1644 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1645 | case snd_soc_dapm_supply: |
2b97eabc RP |
1646 | if (w->name) |
1647 | count += sprintf(buf + count, "%s: %s\n", | |
1648 | w->name, w->power ? "On":"Off"); | |
1649 | break; | |
1650 | default: | |
1651 | break; | |
1652 | } | |
1653 | } | |
1654 | ||
ce6120cc | 1655 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1656 | case SND_SOC_BIAS_ON: |
1657 | state = "On"; | |
2b97eabc | 1658 | break; |
0be9898a MB |
1659 | case SND_SOC_BIAS_PREPARE: |
1660 | state = "Prepare"; | |
2b97eabc | 1661 | break; |
0be9898a MB |
1662 | case SND_SOC_BIAS_STANDBY: |
1663 | state = "Standby"; | |
2b97eabc | 1664 | break; |
0be9898a MB |
1665 | case SND_SOC_BIAS_OFF: |
1666 | state = "Off"; | |
2b97eabc RP |
1667 | break; |
1668 | } | |
1669 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1670 | ||
1671 | return count; | |
1672 | } | |
1673 | ||
1674 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1675 | ||
1676 | int snd_soc_dapm_sys_add(struct device *dev) | |
1677 | { | |
12ef193d | 1678 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1679 | } |
1680 | ||
1681 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1682 | { | |
aef90843 | 1683 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1684 | } |
1685 | ||
1686 | /* free all dapm widgets and resources */ | |
ce6120cc | 1687 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1688 | { |
1689 | struct snd_soc_dapm_widget *w, *next_w; | |
1690 | struct snd_soc_dapm_path *p, *next_p; | |
1691 | ||
97c866de JN |
1692 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1693 | if (w->dapm != dapm) | |
1694 | continue; | |
2b97eabc | 1695 | list_del(&w->list); |
8ddab3f5 JN |
1696 | /* |
1697 | * remove source and sink paths associated to this widget. | |
1698 | * While removing the path, remove reference to it from both | |
1699 | * source and sink widgets so that path is removed only once. | |
1700 | */ | |
1701 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1702 | list_del(&p->list_sink); | |
1703 | list_del(&p->list_source); | |
1704 | list_del(&p->list); | |
1705 | kfree(p->long_name); | |
1706 | kfree(p); | |
1707 | } | |
1708 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1709 | list_del(&p->list_sink); | |
1710 | list_del(&p->list_source); | |
1711 | list_del(&p->list); | |
1712 | kfree(p->long_name); | |
1713 | kfree(p); | |
1714 | } | |
fad59888 | 1715 | kfree(w->kcontrols); |
ead9b919 | 1716 | kfree(w->name); |
2b97eabc RP |
1717 | kfree(w); |
1718 | } | |
2b97eabc RP |
1719 | } |
1720 | ||
91a5fca4 LPC |
1721 | static struct snd_soc_dapm_widget *dapm_find_widget( |
1722 | struct snd_soc_dapm_context *dapm, const char *pin, | |
1723 | bool search_other_contexts) | |
a5302181 LG |
1724 | { |
1725 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 1726 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 1727 | |
97c866de | 1728 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 1729 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
1730 | if (w->dapm == dapm) |
1731 | return w; | |
1732 | else | |
1733 | fallback = w; | |
a5302181 LG |
1734 | } |
1735 | } | |
1736 | ||
91a5fca4 LPC |
1737 | if (search_other_contexts) |
1738 | return fallback; | |
1739 | ||
1740 | return NULL; | |
1741 | } | |
1742 | ||
1743 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
1744 | const char *pin, int status) | |
1745 | { | |
1746 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
1747 | ||
1748 | if (!w) { | |
1749 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
1750 | return -EINVAL; | |
0d86733c MB |
1751 | } |
1752 | ||
91a5fca4 LPC |
1753 | w->connected = status; |
1754 | if (status == 0) | |
1755 | w->force = 0; | |
1756 | ||
1757 | return 0; | |
a5302181 LG |
1758 | } |
1759 | ||
2b97eabc | 1760 | /** |
a5302181 | 1761 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1762 | * @dapm: DAPM context |
2b97eabc RP |
1763 | * |
1764 | * Walks all dapm audio paths and powers widgets according to their | |
1765 | * stream or path usage. | |
1766 | * | |
1767 | * Returns 0 for success. | |
1768 | */ | |
ce6120cc | 1769 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1770 | { |
ce6120cc | 1771 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1772 | } |
a5302181 | 1773 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1774 | |
ce6120cc | 1775 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1776 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1777 | { |
1778 | struct snd_soc_dapm_path *path; | |
1779 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 1780 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 1781 | const char *sink; |
215edda3 | 1782 | const char *control = route->control; |
ead9b919 JN |
1783 | const char *source; |
1784 | char prefixed_sink[80]; | |
1785 | char prefixed_source[80]; | |
2b97eabc RP |
1786 | int ret = 0; |
1787 | ||
88e8b9a8 | 1788 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
1789 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
1790 | dapm->codec->name_prefix, route->sink); | |
1791 | sink = prefixed_sink; | |
1792 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1793 | dapm->codec->name_prefix, route->source); | |
1794 | source = prefixed_source; | |
1795 | } else { | |
1796 | sink = route->sink; | |
1797 | source = route->source; | |
1798 | } | |
1799 | ||
97c866de JN |
1800 | /* |
1801 | * find src and dest widgets over all widgets but favor a widget from | |
1802 | * current DAPM context | |
1803 | */ | |
1804 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 1805 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
1806 | wtsink = w; |
1807 | if (w->dapm == dapm) | |
1808 | wsink = w; | |
2b97eabc RP |
1809 | continue; |
1810 | } | |
1811 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
1812 | wtsource = w; |
1813 | if (w->dapm == dapm) | |
1814 | wsource = w; | |
2b97eabc RP |
1815 | } |
1816 | } | |
97c866de JN |
1817 | /* use widget from another DAPM context if not found from this */ |
1818 | if (!wsink) | |
1819 | wsink = wtsink; | |
1820 | if (!wsource) | |
1821 | wsource = wtsource; | |
2b97eabc RP |
1822 | |
1823 | if (wsource == NULL || wsink == NULL) | |
1824 | return -ENODEV; | |
1825 | ||
1826 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1827 | if (!path) | |
1828 | return -ENOMEM; | |
1829 | ||
1830 | path->source = wsource; | |
1831 | path->sink = wsink; | |
215edda3 | 1832 | path->connected = route->connected; |
2b97eabc RP |
1833 | INIT_LIST_HEAD(&path->list); |
1834 | INIT_LIST_HEAD(&path->list_source); | |
1835 | INIT_LIST_HEAD(&path->list_sink); | |
1836 | ||
1837 | /* check for external widgets */ | |
1838 | if (wsink->id == snd_soc_dapm_input) { | |
1839 | if (wsource->id == snd_soc_dapm_micbias || | |
1840 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1841 | wsource->id == snd_soc_dapm_line || |
1842 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1843 | wsink->ext = 1; |
1844 | } | |
1845 | if (wsource->id == snd_soc_dapm_output) { | |
1846 | if (wsink->id == snd_soc_dapm_spk || | |
1847 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1848 | wsink->id == snd_soc_dapm_line || |
1849 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1850 | wsource->ext = 1; |
1851 | } | |
1852 | ||
1853 | /* connect static paths */ | |
1854 | if (control == NULL) { | |
8ddab3f5 | 1855 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1856 | list_add(&path->list_sink, &wsink->sources); |
1857 | list_add(&path->list_source, &wsource->sinks); | |
1858 | path->connect = 1; | |
1859 | return 0; | |
1860 | } | |
1861 | ||
1862 | /* connect dynamic paths */ | |
dc2bea61 | 1863 | switch (wsink->id) { |
2b97eabc RP |
1864 | case snd_soc_dapm_adc: |
1865 | case snd_soc_dapm_dac: | |
1866 | case snd_soc_dapm_pga: | |
d88429a6 | 1867 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
1868 | case snd_soc_dapm_input: |
1869 | case snd_soc_dapm_output: | |
1870 | case snd_soc_dapm_micbias: | |
1871 | case snd_soc_dapm_vmid: | |
1872 | case snd_soc_dapm_pre: | |
1873 | case snd_soc_dapm_post: | |
246d0a17 | 1874 | case snd_soc_dapm_supply: |
010ff262 MB |
1875 | case snd_soc_dapm_aif_in: |
1876 | case snd_soc_dapm_aif_out: | |
8ddab3f5 | 1877 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1878 | list_add(&path->list_sink, &wsink->sources); |
1879 | list_add(&path->list_source, &wsource->sinks); | |
1880 | path->connect = 1; | |
1881 | return 0; | |
1882 | case snd_soc_dapm_mux: | |
24ff33ac | 1883 | case snd_soc_dapm_virt_mux: |
74155556 | 1884 | case snd_soc_dapm_value_mux: |
ce6120cc | 1885 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 1886 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
1887 | if (ret != 0) |
1888 | goto err; | |
1889 | break; | |
1890 | case snd_soc_dapm_switch: | |
1891 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1892 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1893 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1894 | if (ret != 0) |
1895 | goto err; | |
1896 | break; | |
1897 | case snd_soc_dapm_hp: | |
1898 | case snd_soc_dapm_mic: | |
1899 | case snd_soc_dapm_line: | |
1900 | case snd_soc_dapm_spk: | |
8ddab3f5 | 1901 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1902 | list_add(&path->list_sink, &wsink->sources); |
1903 | list_add(&path->list_source, &wsource->sinks); | |
1904 | path->connect = 0; | |
1905 | return 0; | |
1906 | } | |
1907 | return 0; | |
1908 | ||
1909 | err: | |
f7d41ae8 JN |
1910 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1911 | source, control, sink); | |
2b97eabc RP |
1912 | kfree(path); |
1913 | return ret; | |
1914 | } | |
105f1c28 | 1915 | |
105f1c28 MB |
1916 | /** |
1917 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1918 | * @dapm: DAPM context |
105f1c28 MB |
1919 | * @route: audio routes |
1920 | * @num: number of routes | |
1921 | * | |
1922 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
1923 | * the widget receiving the audio signal, whilst the source is the sender | |
1924 | * of the audio signal. | |
1925 | * | |
1926 | * Returns 0 for success else error. On error all resources can be freed | |
1927 | * with a call to snd_soc_card_free(). | |
1928 | */ | |
ce6120cc | 1929 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
1930 | const struct snd_soc_dapm_route *route, int num) |
1931 | { | |
1932 | int i, ret; | |
1933 | ||
1934 | for (i = 0; i < num; i++) { | |
ce6120cc | 1935 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 1936 | if (ret < 0) { |
f7d41ae8 JN |
1937 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
1938 | route->source, route->sink); | |
105f1c28 MB |
1939 | return ret; |
1940 | } | |
1941 | route++; | |
1942 | } | |
1943 | ||
1944 | return 0; | |
1945 | } | |
1946 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
1947 | ||
bf3a9e13 MB |
1948 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
1949 | const struct snd_soc_dapm_route *route) | |
1950 | { | |
1951 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
1952 | route->source, | |
1953 | true); | |
1954 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
1955 | route->sink, | |
1956 | true); | |
1957 | struct snd_soc_dapm_path *path; | |
1958 | int count = 0; | |
1959 | ||
1960 | if (!source) { | |
1961 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
1962 | route->source); | |
1963 | return -ENODEV; | |
1964 | } | |
1965 | ||
1966 | if (!sink) { | |
1967 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
1968 | route->sink); | |
1969 | return -ENODEV; | |
1970 | } | |
1971 | ||
1972 | if (route->control || route->connected) | |
1973 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
1974 | route->source, route->sink); | |
1975 | ||
1976 | list_for_each_entry(path, &source->sinks, list_source) { | |
1977 | if (path->sink == sink) { | |
1978 | path->weak = 1; | |
1979 | count++; | |
1980 | } | |
1981 | } | |
1982 | ||
1983 | if (count == 0) | |
1984 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
1985 | route->source, route->sink); | |
1986 | if (count > 1) | |
1987 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
1988 | count, route->source, route->sink); | |
1989 | ||
1990 | return 0; | |
1991 | } | |
1992 | ||
1993 | /** | |
1994 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
1995 | * @dapm: DAPM context | |
1996 | * @route: audio routes | |
1997 | * @num: number of routes | |
1998 | * | |
1999 | * Mark existing routes matching those specified in the passed array | |
2000 | * as being weak, meaning that they are ignored for the purpose of | |
2001 | * power decisions. The main intended use case is for sidetone paths | |
2002 | * which couple audio between other independent paths if they are both | |
2003 | * active in order to make the combination work better at the user | |
2004 | * level but which aren't intended to be "used". | |
2005 | * | |
2006 | * Note that CODEC drivers should not use this as sidetone type paths | |
2007 | * can frequently also be used as bypass paths. | |
2008 | */ | |
2009 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2010 | const struct snd_soc_dapm_route *route, int num) | |
2011 | { | |
2012 | int i, err; | |
2013 | int ret = 0; | |
2014 | ||
2015 | for (i = 0; i < num; i++) { | |
2016 | err = snd_soc_dapm_weak_route(dapm, route); | |
2017 | if (err) | |
2018 | ret = err; | |
2019 | route++; | |
2020 | } | |
2021 | ||
2022 | return ret; | |
2023 | } | |
2024 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2025 | ||
2b97eabc RP |
2026 | /** |
2027 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2028 | * @dapm: DAPM context |
2b97eabc RP |
2029 | * |
2030 | * Checks the codec for any new dapm widgets and creates them if found. | |
2031 | * | |
2032 | * Returns 0 for success. | |
2033 | */ | |
ce6120cc | 2034 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2035 | { |
2036 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2037 | unsigned int val; |
2b97eabc | 2038 | |
97c866de | 2039 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2040 | { |
2041 | if (w->new) | |
2042 | continue; | |
2043 | ||
fad59888 SW |
2044 | if (w->num_kcontrols) { |
2045 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2046 | sizeof(struct snd_kcontrol *), | |
2047 | GFP_KERNEL); | |
2048 | if (!w->kcontrols) | |
2049 | return -ENOMEM; | |
2050 | } | |
2051 | ||
2b97eabc RP |
2052 | switch(w->id) { |
2053 | case snd_soc_dapm_switch: | |
2054 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2055 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 2056 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2057 | dapm_new_mixer(w); |
2b97eabc RP |
2058 | break; |
2059 | case snd_soc_dapm_mux: | |
24ff33ac | 2060 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2061 | case snd_soc_dapm_value_mux: |
b75576d7 | 2062 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2063 | dapm_new_mux(w); |
2b97eabc RP |
2064 | break; |
2065 | case snd_soc_dapm_adc: | |
010ff262 | 2066 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
2067 | w->power_check = dapm_adc_check_power; |
2068 | break; | |
2b97eabc | 2069 | case snd_soc_dapm_dac: |
010ff262 | 2070 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
2071 | w->power_check = dapm_dac_check_power; |
2072 | break; | |
2b97eabc | 2073 | case snd_soc_dapm_pga: |
d88429a6 | 2074 | case snd_soc_dapm_out_drv: |
b75576d7 | 2075 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2076 | dapm_new_pga(w); |
2b97eabc RP |
2077 | break; |
2078 | case snd_soc_dapm_input: | |
2079 | case snd_soc_dapm_output: | |
2080 | case snd_soc_dapm_micbias: | |
2081 | case snd_soc_dapm_spk: | |
2082 | case snd_soc_dapm_hp: | |
2083 | case snd_soc_dapm_mic: | |
2084 | case snd_soc_dapm_line: | |
b75576d7 MB |
2085 | w->power_check = dapm_generic_check_power; |
2086 | break; | |
246d0a17 MB |
2087 | case snd_soc_dapm_supply: |
2088 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
2089 | case snd_soc_dapm_vmid: |
2090 | case snd_soc_dapm_pre: | |
2091 | case snd_soc_dapm_post: | |
2092 | break; | |
2093 | } | |
b66a70d5 | 2094 | |
35c64bca MB |
2095 | if (!w->power_check) |
2096 | w->power_check = dapm_always_on_check_power; | |
2097 | ||
b66a70d5 MB |
2098 | /* Read the initial power state from the device */ |
2099 | if (w->reg >= 0) { | |
0445bdf4 | 2100 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2101 | val &= 1 << w->shift; |
2102 | if (w->invert) | |
2103 | val = !val; | |
2104 | ||
2105 | if (val) | |
2106 | w->power = 1; | |
2107 | } | |
2108 | ||
2b97eabc | 2109 | w->new = 1; |
d5d1e0be LPC |
2110 | |
2111 | dapm_debugfs_add_widget(w); | |
2b97eabc RP |
2112 | } |
2113 | ||
ce6120cc | 2114 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
2115 | return 0; |
2116 | } | |
2117 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2118 | ||
2119 | /** | |
2120 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2121 | * @kcontrol: mixer control | |
ac11a2b3 | 2122 | * @ucontrol: control element information |
2b97eabc RP |
2123 | * |
2124 | * Callback to get the value of a dapm mixer control. | |
2125 | * | |
2126 | * Returns 0 for success. | |
2127 | */ | |
2128 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2129 | struct snd_ctl_elem_value *ucontrol) | |
2130 | { | |
fafd2176 SW |
2131 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2132 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2133 | struct soc_mixer_control *mc = |
2134 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2135 | unsigned int reg = mc->reg; |
2136 | unsigned int shift = mc->shift; | |
2137 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2138 | int max = mc->max; |
815ecf8d JS |
2139 | unsigned int invert = mc->invert; |
2140 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 2141 | |
2b97eabc RP |
2142 | ucontrol->value.integer.value[0] = |
2143 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
2144 | if (shift != rshift) | |
2145 | ucontrol->value.integer.value[1] = | |
2146 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
2147 | if (invert) { | |
2148 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2149 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2150 | if (shift != rshift) |
2151 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2152 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
2153 | } |
2154 | ||
2155 | return 0; | |
2156 | } | |
2157 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2158 | ||
2159 | /** | |
2160 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2161 | * @kcontrol: mixer control | |
ac11a2b3 | 2162 | * @ucontrol: control element information |
2b97eabc RP |
2163 | * |
2164 | * Callback to set the value of a dapm mixer control. | |
2165 | * | |
2166 | * Returns 0 for success. | |
2167 | */ | |
2168 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2169 | struct snd_ctl_elem_value *ucontrol) | |
2170 | { | |
fafd2176 SW |
2171 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2172 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2173 | struct snd_soc_codec *codec = widget->codec; | |
4eaa9819 JS |
2174 | struct soc_mixer_control *mc = |
2175 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2176 | unsigned int reg = mc->reg; |
2177 | unsigned int shift = mc->shift; | |
4eaa9819 | 2178 | int max = mc->max; |
815ecf8d JS |
2179 | unsigned int mask = (1 << fls(max)) - 1; |
2180 | unsigned int invert = mc->invert; | |
e9cf7049 | 2181 | unsigned int val; |
97404f2e MB |
2182 | int connect, change; |
2183 | struct snd_soc_dapm_update update; | |
fafd2176 | 2184 | int wi; |
2b97eabc RP |
2185 | |
2186 | val = (ucontrol->value.integer.value[0] & mask); | |
2187 | ||
2188 | if (invert) | |
a7a4ac86 | 2189 | val = max - val; |
e9cf7049 | 2190 | mask = mask << shift; |
2b97eabc | 2191 | val = val << shift; |
2b97eabc | 2192 | |
fafd2176 SW |
2193 | if (val) |
2194 | /* new connection */ | |
2195 | connect = invert ? 0 : 1; | |
2196 | else | |
2197 | /* old connection must be powered down */ | |
2198 | connect = invert ? 1 : 0; | |
2199 | ||
2200 | mutex_lock(&codec->mutex); | |
2b97eabc | 2201 | |
e9cf7049 | 2202 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2203 | if (change) { |
fafd2176 SW |
2204 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2205 | widget = wlist->widgets[wi]; | |
283375ce | 2206 | |
fafd2176 | 2207 | widget->value = val; |
97404f2e | 2208 | |
fafd2176 SW |
2209 | update.kcontrol = kcontrol; |
2210 | update.widget = widget; | |
2211 | update.reg = reg; | |
2212 | update.mask = mask; | |
2213 | update.val = val; | |
2214 | widget->dapm->update = &update; | |
97404f2e | 2215 | |
fafd2176 SW |
2216 | dapm_mixer_update_power(widget, kcontrol, connect); |
2217 | ||
2218 | widget->dapm->update = NULL; | |
2219 | } | |
283375ce MB |
2220 | } |
2221 | ||
fafd2176 | 2222 | mutex_unlock(&codec->mutex); |
97404f2e | 2223 | return 0; |
2b97eabc RP |
2224 | } |
2225 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2226 | ||
2227 | /** | |
2228 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2229 | * @kcontrol: mixer control | |
ac11a2b3 | 2230 | * @ucontrol: control element information |
2b97eabc RP |
2231 | * |
2232 | * Callback to get the value of a dapm enumerated double mixer control. | |
2233 | * | |
2234 | * Returns 0 for success. | |
2235 | */ | |
2236 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2237 | struct snd_ctl_elem_value *ucontrol) | |
2238 | { | |
fafd2176 SW |
2239 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2240 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2241 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2242 | unsigned int val, bitmask; |
2b97eabc | 2243 | |
f8ba0b7b | 2244 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
2245 | ; |
2246 | val = snd_soc_read(widget->codec, e->reg); | |
2247 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
2248 | if (e->shift_l != e->shift_r) | |
2249 | ucontrol->value.enumerated.item[1] = | |
2250 | (val >> e->shift_r) & (bitmask - 1); | |
2251 | ||
2252 | return 0; | |
2253 | } | |
2254 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2255 | ||
2256 | /** | |
2257 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2258 | * @kcontrol: mixer control | |
ac11a2b3 | 2259 | * @ucontrol: control element information |
2b97eabc RP |
2260 | * |
2261 | * Callback to set the value of a dapm enumerated double mixer control. | |
2262 | * | |
2263 | * Returns 0 for success. | |
2264 | */ | |
2265 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2266 | struct snd_ctl_elem_value *ucontrol) | |
2267 | { | |
fafd2176 SW |
2268 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2269 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2270 | struct snd_soc_codec *codec = widget->codec; | |
2b97eabc | 2271 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2272 | unsigned int val, mux, change; |
46f5822f | 2273 | unsigned int mask, bitmask; |
97404f2e | 2274 | struct snd_soc_dapm_update update; |
fafd2176 | 2275 | int wi; |
2b97eabc | 2276 | |
f8ba0b7b | 2277 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 2278 | ; |
f8ba0b7b | 2279 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2280 | return -EINVAL; |
2281 | mux = ucontrol->value.enumerated.item[0]; | |
2282 | val = mux << e->shift_l; | |
2283 | mask = (bitmask - 1) << e->shift_l; | |
2284 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2285 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2286 | return -EINVAL; |
2287 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2288 | mask |= (bitmask - 1) << e->shift_r; | |
2289 | } | |
2290 | ||
fafd2176 SW |
2291 | mutex_lock(&codec->mutex); |
2292 | ||
3a65577d | 2293 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2294 | if (change) { |
2295 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2296 | widget = wlist->widgets[wi]; | |
2297 | ||
2298 | widget->value = val; | |
1642e3d4 | 2299 | |
fafd2176 SW |
2300 | update.kcontrol = kcontrol; |
2301 | update.widget = widget; | |
2302 | update.reg = e->reg; | |
2303 | update.mask = mask; | |
2304 | update.val = val; | |
2305 | widget->dapm->update = &update; | |
1642e3d4 | 2306 | |
fafd2176 | 2307 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 2308 | |
fafd2176 SW |
2309 | widget->dapm->update = NULL; |
2310 | } | |
2311 | } | |
2b97eabc | 2312 | |
fafd2176 | 2313 | mutex_unlock(&codec->mutex); |
97404f2e | 2314 | return change; |
2b97eabc RP |
2315 | } |
2316 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2317 | ||
d2b247a8 MB |
2318 | /** |
2319 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2320 | * @kcontrol: mixer control | |
2321 | * @ucontrol: control element information | |
2322 | * | |
2323 | * Returns 0 for success. | |
2324 | */ | |
2325 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2326 | struct snd_ctl_elem_value *ucontrol) | |
2327 | { | |
fafd2176 SW |
2328 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2329 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2330 | |
2331 | ucontrol->value.enumerated.item[0] = widget->value; | |
2332 | ||
2333 | return 0; | |
2334 | } | |
2335 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2336 | ||
2337 | /** | |
2338 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2339 | * @kcontrol: mixer control | |
2340 | * @ucontrol: control element information | |
2341 | * | |
2342 | * Returns 0 for success. | |
2343 | */ | |
2344 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2345 | struct snd_ctl_elem_value *ucontrol) | |
2346 | { | |
fafd2176 SW |
2347 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2348 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2349 | struct snd_soc_codec *codec = widget->codec; | |
d2b247a8 MB |
2350 | struct soc_enum *e = |
2351 | (struct soc_enum *)kcontrol->private_value; | |
2352 | int change; | |
2353 | int ret = 0; | |
fafd2176 | 2354 | int wi; |
d2b247a8 MB |
2355 | |
2356 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2357 | return -EINVAL; | |
2358 | ||
fafd2176 | 2359 | mutex_lock(&codec->mutex); |
d2b247a8 MB |
2360 | |
2361 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2362 | if (change) { |
2363 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2364 | widget = wlist->widgets[wi]; | |
2365 | ||
2366 | widget->value = ucontrol->value.enumerated.item[0]; | |
2367 | ||
2368 | dapm_mux_update_power(widget, kcontrol, change, | |
2369 | widget->value, e); | |
2370 | } | |
2371 | } | |
d2b247a8 | 2372 | |
fafd2176 | 2373 | mutex_unlock(&codec->mutex); |
d2b247a8 MB |
2374 | return ret; |
2375 | } | |
2376 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2377 | ||
2e72f8e3 PU |
2378 | /** |
2379 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2380 | * callback | |
2381 | * @kcontrol: mixer control | |
2382 | * @ucontrol: control element information | |
2383 | * | |
2384 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2385 | * | |
2386 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2387 | * used for handling bitfield coded enumeration for example. | |
2388 | * | |
2389 | * Returns 0 for success. | |
2390 | */ | |
2391 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2392 | struct snd_ctl_elem_value *ucontrol) | |
2393 | { | |
fafd2176 SW |
2394 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2395 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2396 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2397 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2398 | |
2399 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2400 | val = (reg_val >> e->shift_l) & e->mask; | |
2401 | for (mux = 0; mux < e->max; mux++) { | |
2402 | if (val == e->values[mux]) | |
2403 | break; | |
2404 | } | |
2405 | ucontrol->value.enumerated.item[0] = mux; | |
2406 | if (e->shift_l != e->shift_r) { | |
2407 | val = (reg_val >> e->shift_r) & e->mask; | |
2408 | for (mux = 0; mux < e->max; mux++) { | |
2409 | if (val == e->values[mux]) | |
2410 | break; | |
2411 | } | |
2412 | ucontrol->value.enumerated.item[1] = mux; | |
2413 | } | |
2414 | ||
2415 | return 0; | |
2416 | } | |
2417 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2418 | ||
2419 | /** | |
2420 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2421 | * callback | |
2422 | * @kcontrol: mixer control | |
2423 | * @ucontrol: control element information | |
2424 | * | |
2425 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2426 | * | |
2427 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2428 | * used for handling bitfield coded enumeration for example. | |
2429 | * | |
2430 | * Returns 0 for success. | |
2431 | */ | |
2432 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2433 | struct snd_ctl_elem_value *ucontrol) | |
2434 | { | |
fafd2176 SW |
2435 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2436 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2437 | struct snd_soc_codec *codec = widget->codec; | |
74155556 | 2438 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2439 | unsigned int val, mux, change; |
46f5822f | 2440 | unsigned int mask; |
97404f2e | 2441 | struct snd_soc_dapm_update update; |
fafd2176 | 2442 | int wi; |
2e72f8e3 PU |
2443 | |
2444 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2445 | return -EINVAL; | |
2446 | mux = ucontrol->value.enumerated.item[0]; | |
2447 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2448 | mask = e->mask << e->shift_l; | |
2449 | if (e->shift_l != e->shift_r) { | |
2450 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2451 | return -EINVAL; | |
2452 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2453 | mask |= e->mask << e->shift_r; | |
2454 | } | |
2455 | ||
fafd2176 SW |
2456 | mutex_lock(&codec->mutex); |
2457 | ||
3a65577d | 2458 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2459 | if (change) { |
2460 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2461 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2462 | |
fafd2176 | 2463 | widget->value = val; |
1642e3d4 | 2464 | |
fafd2176 SW |
2465 | update.kcontrol = kcontrol; |
2466 | update.widget = widget; | |
2467 | update.reg = e->reg; | |
2468 | update.mask = mask; | |
2469 | update.val = val; | |
2470 | widget->dapm->update = &update; | |
1642e3d4 | 2471 | |
fafd2176 SW |
2472 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
2473 | ||
2474 | widget->dapm->update = NULL; | |
2475 | } | |
2476 | } | |
2e72f8e3 | 2477 | |
fafd2176 | 2478 | mutex_unlock(&codec->mutex); |
97404f2e | 2479 | return change; |
2e72f8e3 PU |
2480 | } |
2481 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2482 | ||
8b37dbd2 MB |
2483 | /** |
2484 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2485 | * | |
2486 | * @kcontrol: mixer control | |
2487 | * @uinfo: control element information | |
2488 | * | |
2489 | * Callback to provide information about a pin switch control. | |
2490 | */ | |
2491 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2492 | struct snd_ctl_elem_info *uinfo) | |
2493 | { | |
2494 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2495 | uinfo->count = 1; | |
2496 | uinfo->value.integer.min = 0; | |
2497 | uinfo->value.integer.max = 1; | |
2498 | ||
2499 | return 0; | |
2500 | } | |
2501 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2502 | ||
2503 | /** | |
2504 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2505 | * | |
2506 | * @kcontrol: mixer control | |
2507 | * @ucontrol: Value | |
2508 | */ | |
2509 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2510 | struct snd_ctl_elem_value *ucontrol) | |
2511 | { | |
2512 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2513 | const char *pin = (const char *)kcontrol->private_value; | |
2514 | ||
2515 | mutex_lock(&codec->mutex); | |
2516 | ||
2517 | ucontrol->value.integer.value[0] = | |
ce6120cc | 2518 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
2519 | |
2520 | mutex_unlock(&codec->mutex); | |
2521 | ||
2522 | return 0; | |
2523 | } | |
2524 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2525 | ||
2526 | /** | |
2527 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2528 | * | |
2529 | * @kcontrol: mixer control | |
2530 | * @ucontrol: Value | |
2531 | */ | |
2532 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2533 | struct snd_ctl_elem_value *ucontrol) | |
2534 | { | |
2535 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2536 | const char *pin = (const char *)kcontrol->private_value; | |
2537 | ||
2538 | mutex_lock(&codec->mutex); | |
2539 | ||
2540 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 2541 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 2542 | else |
ce6120cc | 2543 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 2544 | |
ce6120cc | 2545 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
2546 | |
2547 | mutex_unlock(&codec->mutex); | |
2548 | ||
2549 | return 0; | |
2550 | } | |
2551 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2552 | ||
2b97eabc RP |
2553 | /** |
2554 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 2555 | * @dapm: DAPM context |
2b97eabc RP |
2556 | * @widget: widget template |
2557 | * | |
2558 | * Creates a new dapm control based upon the template. | |
2559 | * | |
2560 | * Returns 0 for success else error. | |
2561 | */ | |
ce6120cc | 2562 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
2563 | const struct snd_soc_dapm_widget *widget) |
2564 | { | |
2565 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2566 | size_t name_len; |
2b97eabc RP |
2567 | |
2568 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
2569 | return -ENOMEM; | |
2570 | ||
ead9b919 | 2571 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 2572 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2573 | name_len += 1 + strlen(dapm->codec->name_prefix); |
2574 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2575 | if (w->name == NULL) { | |
2576 | kfree(w); | |
2577 | return -ENOMEM; | |
2578 | } | |
88e8b9a8 | 2579 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2580 | snprintf(w->name, name_len, "%s %s", |
2581 | dapm->codec->name_prefix, widget->name); | |
2582 | else | |
2583 | snprintf(w->name, name_len, "%s", widget->name); | |
2584 | ||
97c866de | 2585 | dapm->n_widgets++; |
ce6120cc LG |
2586 | w->dapm = dapm; |
2587 | w->codec = dapm->codec; | |
b7950641 | 2588 | w->platform = dapm->platform; |
2b97eabc RP |
2589 | INIT_LIST_HEAD(&w->sources); |
2590 | INIT_LIST_HEAD(&w->sinks); | |
2591 | INIT_LIST_HEAD(&w->list); | |
97c866de | 2592 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2593 | |
2594 | /* machine layer set ups unconnected pins and insertions */ | |
2595 | w->connected = 1; | |
2596 | return 0; | |
2597 | } | |
2598 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2599 | ||
4ba1327a MB |
2600 | /** |
2601 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2602 | * @dapm: DAPM context |
4ba1327a MB |
2603 | * @widget: widget array |
2604 | * @num: number of widgets | |
2605 | * | |
2606 | * Creates new DAPM controls based upon the templates. | |
2607 | * | |
2608 | * Returns 0 for success else error. | |
2609 | */ | |
ce6120cc | 2610 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2611 | const struct snd_soc_dapm_widget *widget, |
2612 | int num) | |
2613 | { | |
2614 | int i, ret; | |
2615 | ||
2616 | for (i = 0; i < num; i++) { | |
ce6120cc | 2617 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2618 | if (ret < 0) { |
f7d41ae8 JN |
2619 | dev_err(dapm->dev, |
2620 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2621 | widget->name, ret); | |
4ba1327a | 2622 | return ret; |
b8b33cb5 | 2623 | } |
4ba1327a MB |
2624 | widget++; |
2625 | } | |
2626 | return 0; | |
2627 | } | |
2628 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2629 | ||
ce6120cc | 2630 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2631 | const char *stream, int event) |
2b97eabc RP |
2632 | { |
2633 | struct snd_soc_dapm_widget *w; | |
2634 | ||
97c866de | 2635 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc | 2636 | { |
97c866de | 2637 | if (!w->sname || w->dapm != dapm) |
2b97eabc | 2638 | continue; |
ee47b364 | 2639 | dev_vdbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
f7d41ae8 | 2640 | w->name, w->sname, stream, event); |
2b97eabc RP |
2641 | if (strstr(w->sname, stream)) { |
2642 | switch(event) { | |
2643 | case SND_SOC_DAPM_STREAM_START: | |
2644 | w->active = 1; | |
2645 | break; | |
2646 | case SND_SOC_DAPM_STREAM_STOP: | |
2647 | w->active = 0; | |
2648 | break; | |
2649 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2650 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2651 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2652 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2653 | break; | |
2654 | } | |
2655 | } | |
2656 | } | |
2b97eabc | 2657 | |
ce6120cc | 2658 | dapm_power_widgets(dapm, event); |
64a648c2 LG |
2659 | |
2660 | /* do we need to notify any clients that DAPM stream is complete */ | |
2661 | if (dapm->stream_event) | |
2662 | dapm->stream_event(dapm, event); | |
ce6120cc LG |
2663 | } |
2664 | ||
2665 | /** | |
2666 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2667 | * @rtd: PCM runtime data | |
2668 | * @stream: stream name | |
2669 | * @event: stream event | |
2670 | * | |
2671 | * Sends a stream event to the dapm core. The core then makes any | |
2672 | * necessary widget power changes. | |
2673 | * | |
2674 | * Returns 0 for success else error. | |
2675 | */ | |
2676 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2677 | const char *stream, int event) | |
2678 | { | |
2679 | struct snd_soc_codec *codec = rtd->codec; | |
2680 | ||
2681 | if (stream == NULL) | |
2682 | return 0; | |
2683 | ||
2684 | mutex_lock(&codec->mutex); | |
2685 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2686 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2687 | return 0; |
2688 | } | |
2b97eabc RP |
2689 | |
2690 | /** | |
a5302181 | 2691 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2692 | * @dapm: DAPM context |
a5302181 | 2693 | * @pin: pin name |
2b97eabc | 2694 | * |
74b8f955 | 2695 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2696 | * a valid audio route and active audio stream. |
2697 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2698 | * do any widget power switching. | |
2b97eabc | 2699 | */ |
ce6120cc | 2700 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2701 | { |
ce6120cc | 2702 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2703 | } |
2704 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2705 | |
da34183e MB |
2706 | /** |
2707 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2708 | * @dapm: DAPM context |
da34183e MB |
2709 | * @pin: pin name |
2710 | * | |
2711 | * Enables input/output pin regardless of any other state. This is | |
2712 | * intended for use with microphone bias supplies used in microphone | |
2713 | * jack detection. | |
2714 | * | |
2715 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2716 | * do any widget power switching. | |
2717 | */ | |
ce6120cc LG |
2718 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2719 | const char *pin) | |
da34183e | 2720 | { |
91a5fca4 | 2721 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 2722 | |
91a5fca4 LPC |
2723 | if (!w) { |
2724 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2725 | return -EINVAL; | |
0d86733c MB |
2726 | } |
2727 | ||
91a5fca4 LPC |
2728 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
2729 | w->connected = 1; | |
2730 | w->force = 1; | |
da34183e | 2731 | |
91a5fca4 | 2732 | return 0; |
da34183e MB |
2733 | } |
2734 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2735 | ||
a5302181 LG |
2736 | /** |
2737 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2738 | * @dapm: DAPM context |
a5302181 LG |
2739 | * @pin: pin name |
2740 | * | |
74b8f955 | 2741 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2742 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2743 | * do any widget power switching. | |
2744 | */ | |
ce6120cc LG |
2745 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2746 | const char *pin) | |
a5302181 | 2747 | { |
ce6120cc | 2748 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2749 | } |
a5302181 | 2750 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2751 | |
5817b52a MB |
2752 | /** |
2753 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2754 | * @dapm: DAPM context |
5817b52a MB |
2755 | * @pin: pin name |
2756 | * | |
2757 | * Marks the specified pin as being not connected, disabling it along | |
2758 | * any parent or child widgets. At present this is identical to | |
2759 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2760 | * additional things such as disabling controls which only affect | |
2761 | * paths through the pin. | |
2762 | * | |
2763 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2764 | * do any widget power switching. | |
2765 | */ | |
ce6120cc | 2766 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2767 | { |
ce6120cc | 2768 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2769 | } |
2770 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2771 | ||
eeec12bf | 2772 | /** |
a5302181 | 2773 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2774 | * @dapm: DAPM context |
a5302181 | 2775 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2776 | * |
a5302181 | 2777 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2778 | * |
a5302181 | 2779 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2780 | */ |
ce6120cc LG |
2781 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2782 | const char *pin) | |
eeec12bf | 2783 | { |
91a5fca4 | 2784 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 2785 | |
91a5fca4 LPC |
2786 | if (w) |
2787 | return w->connected; | |
a68b38ad | 2788 | |
eeec12bf GG |
2789 | return 0; |
2790 | } | |
a5302181 | 2791 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2792 | |
1547aba9 MB |
2793 | /** |
2794 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2795 | * @dapm: DAPM context |
1547aba9 MB |
2796 | * @pin: audio signal pin endpoint (or start point) |
2797 | * | |
2798 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2799 | * system is disabled a path between two endpoints flagged as ignoring | |
2800 | * suspend will not be disabled. The path must already be enabled via | |
2801 | * normal means at suspend time, it will not be turned on if it was not | |
2802 | * already enabled. | |
2803 | */ | |
ce6120cc LG |
2804 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2805 | const char *pin) | |
1547aba9 | 2806 | { |
91a5fca4 | 2807 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 2808 | |
91a5fca4 LPC |
2809 | if (!w) { |
2810 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2811 | return -EINVAL; | |
1547aba9 MB |
2812 | } |
2813 | ||
91a5fca4 LPC |
2814 | w->ignore_suspend = 1; |
2815 | ||
2816 | return 0; | |
1547aba9 MB |
2817 | } |
2818 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2819 | ||
2b97eabc RP |
2820 | /** |
2821 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 2822 | * @dapm: DAPM context |
2b97eabc RP |
2823 | * |
2824 | * Free all dapm widgets and resources. | |
2825 | */ | |
ce6120cc | 2826 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2827 | { |
ce6120cc | 2828 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 2829 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 2830 | dapm_free_widgets(dapm); |
7be31be8 | 2831 | list_del(&dapm->list); |
2b97eabc RP |
2832 | } |
2833 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2834 | ||
ce6120cc | 2835 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2836 | { |
51737470 MB |
2837 | struct snd_soc_dapm_widget *w; |
2838 | LIST_HEAD(down_list); | |
2839 | int powerdown = 0; | |
2840 | ||
97c866de JN |
2841 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2842 | if (w->dapm != dapm) | |
2843 | continue; | |
51737470 | 2844 | if (w->power) { |
828a842f | 2845 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 2846 | w->power = 0; |
51737470 MB |
2847 | powerdown = 1; |
2848 | } | |
2849 | } | |
2850 | ||
2851 | /* If there were no widgets to power down we're already in | |
2852 | * standby. | |
2853 | */ | |
2854 | if (powerdown) { | |
ed5a4c47 | 2855 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE); |
828a842f | 2856 | dapm_seq_run(dapm, &down_list, 0, false); |
ed5a4c47 | 2857 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY); |
51737470 | 2858 | } |
f0fba2ad LG |
2859 | } |
2860 | ||
2861 | /* | |
2862 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2863 | */ | |
2864 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2865 | { | |
2866 | struct snd_soc_codec *codec; | |
2867 | ||
ce6120cc LG |
2868 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2869 | soc_dapm_shutdown_codec(&codec->dapm); | |
ed5a4c47 | 2870 | snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF); |
ce6120cc | 2871 | } |
51737470 MB |
2872 | } |
2873 | ||
2b97eabc | 2874 | /* Module information */ |
d331124d | 2875 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2876 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2877 | MODULE_LICENSE("GPL"); |