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 | ||
db432b41 MB |
122 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
123 | { | |
124 | return !list_empty(&w->dirty); | |
125 | } | |
126 | ||
75c1f891 | 127 | static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 128 | { |
75c1f891 MB |
129 | if (!dapm_dirty_widget(w)) { |
130 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
131 | w->name, reason); | |
db432b41 | 132 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 133 | } |
db432b41 MB |
134 | } |
135 | ||
2b97eabc | 136 | /* create a new dapm widget */ |
88cb4290 | 137 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
138 | const struct snd_soc_dapm_widget *_widget) |
139 | { | |
88cb4290 | 140 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
141 | } |
142 | ||
4805608a LG |
143 | /* get snd_card from DAPM context */ |
144 | static inline struct snd_card *dapm_get_snd_card( | |
145 | struct snd_soc_dapm_context *dapm) | |
146 | { | |
147 | if (dapm->codec) | |
148 | return dapm->codec->card->snd_card; | |
149 | else if (dapm->platform) | |
150 | return dapm->platform->card->snd_card; | |
151 | else | |
152 | BUG(); | |
153 | ||
154 | /* unreachable */ | |
155 | return NULL; | |
156 | } | |
157 | ||
158 | /* get soc_card from DAPM context */ | |
159 | static inline struct snd_soc_card *dapm_get_soc_card( | |
160 | struct snd_soc_dapm_context *dapm) | |
161 | { | |
162 | if (dapm->codec) | |
163 | return dapm->codec->card; | |
164 | else if (dapm->platform) | |
165 | return dapm->platform->card; | |
166 | else | |
167 | BUG(); | |
168 | ||
169 | /* unreachable */ | |
170 | return NULL; | |
171 | } | |
172 | ||
0445bdf4 LG |
173 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
174 | { | |
175 | if (w->codec) | |
176 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
177 | else if (w->platform) |
178 | return snd_soc_platform_read(w->platform, reg); | |
179 | ||
180 | dev_err(w->dapm->dev, "no valid widget read method\n"); | |
181 | return -1; | |
0445bdf4 LG |
182 | } |
183 | ||
184 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
185 | { | |
186 | if (w->codec) | |
187 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
188 | else if (w->platform) |
189 | return snd_soc_platform_write(w->platform, reg, val); | |
190 | ||
191 | dev_err(w->dapm->dev, "no valid widget write method\n"); | |
192 | return -1; | |
0445bdf4 LG |
193 | } |
194 | ||
195 | static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, | |
196 | unsigned short reg, unsigned int mask, unsigned int value) | |
197 | { | |
198 | int change; | |
199 | unsigned int old, new; | |
200 | int ret; | |
201 | ||
202 | ret = soc_widget_read(w, reg); | |
203 | if (ret < 0) | |
204 | return ret; | |
205 | ||
206 | old = ret; | |
207 | new = (old & ~mask) | (value & mask); | |
208 | change = old != new; | |
209 | if (change) { | |
210 | ret = soc_widget_write(w, reg, new); | |
211 | if (ret < 0) | |
212 | return ret; | |
213 | } | |
214 | ||
215 | return change; | |
216 | } | |
217 | ||
452c5eaa MB |
218 | /** |
219 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 220 | * @dapm: DAPM context |
452c5eaa MB |
221 | * @level: level to configure |
222 | * | |
223 | * Configure the bias (power) levels for the SoC audio device. | |
224 | * | |
225 | * Returns 0 for success else error. | |
226 | */ | |
ed5a4c47 | 227 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 228 | enum snd_soc_bias_level level) |
452c5eaa | 229 | { |
ed5a4c47 | 230 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
231 | int ret = 0; |
232 | ||
84e90930 MB |
233 | trace_snd_soc_bias_level_start(card, level); |
234 | ||
f0fba2ad | 235 | if (card && card->set_bias_level) |
d4c6005f | 236 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
237 | if (ret != 0) |
238 | goto out; | |
239 | ||
cc4c670a MB |
240 | if (dapm->codec) { |
241 | if (dapm->codec->driver->set_bias_level) | |
242 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
243 | level); | |
244 | else | |
245 | dapm->bias_level = level; | |
246 | } | |
171ec6b0 MB |
247 | if (ret != 0) |
248 | goto out; | |
249 | ||
250 | if (card && card->set_bias_level_post) | |
d4c6005f | 251 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 252 | out: |
84e90930 MB |
253 | trace_snd_soc_bias_level_done(card, level); |
254 | ||
452c5eaa MB |
255 | return ret; |
256 | } | |
257 | ||
2b97eabc RP |
258 | /* set up initial codec paths */ |
259 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
260 | struct snd_soc_dapm_path *p, int i) | |
261 | { | |
262 | switch (w->id) { | |
263 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
264 | case snd_soc_dapm_mixer: |
265 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 266 | int val; |
4eaa9819 | 267 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 268 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
269 | unsigned int reg = mc->reg; |
270 | unsigned int shift = mc->shift; | |
4eaa9819 | 271 | int max = mc->max; |
815ecf8d JS |
272 | unsigned int mask = (1 << fls(max)) - 1; |
273 | unsigned int invert = mc->invert; | |
2b97eabc | 274 | |
0445bdf4 | 275 | val = soc_widget_read(w, reg); |
2b97eabc RP |
276 | val = (val >> shift) & mask; |
277 | ||
278 | if ((invert && !val) || (!invert && val)) | |
279 | p->connect = 1; | |
280 | else | |
281 | p->connect = 0; | |
282 | } | |
283 | break; | |
284 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
285 | struct soc_enum *e = (struct soc_enum *) |
286 | w->kcontrol_news[i].private_value; | |
2b97eabc RP |
287 | int val, item, bitmask; |
288 | ||
f8ba0b7b | 289 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
88d96086 | 290 | ; |
0445bdf4 | 291 | val = soc_widget_read(w, e->reg); |
2b97eabc RP |
292 | item = (val >> e->shift_l) & (bitmask - 1); |
293 | ||
294 | p->connect = 0; | |
f8ba0b7b | 295 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
296 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
297 | p->connect = 1; | |
298 | } | |
299 | } | |
300 | break; | |
24ff33ac | 301 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
302 | struct soc_enum *e = (struct soc_enum *) |
303 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
304 | |
305 | p->connect = 0; | |
306 | /* since a virtual mux has no backing registers to | |
307 | * decide which path to connect, it will try to match | |
308 | * with the first enumeration. This is to ensure | |
309 | * that the default mux choice (the first) will be | |
310 | * correctly powered up during initialization. | |
311 | */ | |
312 | if (!strcmp(p->name, e->texts[0])) | |
313 | p->connect = 1; | |
314 | } | |
315 | break; | |
2e72f8e3 | 316 | case snd_soc_dapm_value_mux: { |
74155556 | 317 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 318 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
319 | int val, item; |
320 | ||
0445bdf4 | 321 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
322 | val = (val >> e->shift_l) & e->mask; |
323 | for (item = 0; item < e->max; item++) { | |
324 | if (val == e->values[item]) | |
325 | break; | |
326 | } | |
327 | ||
328 | p->connect = 0; | |
329 | for (i = 0; i < e->max; i++) { | |
330 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
331 | p->connect = 1; | |
332 | } | |
333 | } | |
334 | break; | |
56563100 | 335 | /* does not affect routing - always connected */ |
2b97eabc | 336 | case snd_soc_dapm_pga: |
d88429a6 | 337 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
338 | case snd_soc_dapm_output: |
339 | case snd_soc_dapm_adc: | |
340 | case snd_soc_dapm_input: | |
341 | case snd_soc_dapm_dac: | |
342 | case snd_soc_dapm_micbias: | |
343 | case snd_soc_dapm_vmid: | |
246d0a17 | 344 | case snd_soc_dapm_supply: |
010ff262 MB |
345 | case snd_soc_dapm_aif_in: |
346 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
347 | case snd_soc_dapm_hp: |
348 | case snd_soc_dapm_mic: | |
349 | case snd_soc_dapm_spk: | |
350 | case snd_soc_dapm_line: | |
56563100 MB |
351 | p->connect = 1; |
352 | break; | |
353 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
354 | case snd_soc_dapm_pre: |
355 | case snd_soc_dapm_post: | |
356 | p->connect = 0; | |
357 | break; | |
358 | } | |
359 | } | |
360 | ||
74b8f955 | 361 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 362 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
363 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
364 | struct snd_soc_dapm_path *path, const char *control_name, | |
365 | const struct snd_kcontrol_new *kcontrol) | |
366 | { | |
367 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
368 | int i; | |
369 | ||
f8ba0b7b | 370 | for (i = 0; i < e->max; i++) { |
2b97eabc | 371 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 372 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
373 | list_add(&path->list_sink, &dest->sources); |
374 | list_add(&path->list_source, &src->sinks); | |
375 | path->name = (char*)e->texts[i]; | |
376 | dapm_set_path_status(dest, path, 0); | |
377 | return 0; | |
378 | } | |
379 | } | |
380 | ||
381 | return -ENODEV; | |
382 | } | |
383 | ||
74b8f955 | 384 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 385 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
386 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
387 | struct snd_soc_dapm_path *path, const char *control_name) | |
388 | { | |
389 | int i; | |
390 | ||
391 | /* search for mixer kcontrol */ | |
392 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 393 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 394 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
395 | list_add(&path->list_sink, &dest->sources); |
396 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 397 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
398 | dapm_set_path_status(dest, path, i); |
399 | return 0; | |
400 | } | |
401 | } | |
402 | return -ENODEV; | |
403 | } | |
404 | ||
af46800b | 405 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 406 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
407 | const struct snd_kcontrol_new *kcontrol_new, |
408 | struct snd_kcontrol **kcontrol) | |
409 | { | |
410 | struct snd_soc_dapm_widget *w; | |
411 | int i; | |
412 | ||
413 | *kcontrol = NULL; | |
414 | ||
415 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
416 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
417 | continue; | |
af46800b SW |
418 | for (i = 0; i < w->num_kcontrols; i++) { |
419 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
420 | if (w->kcontrols) | |
421 | *kcontrol = w->kcontrols[i]; | |
422 | return 1; | |
423 | } | |
424 | } | |
425 | } | |
426 | ||
427 | return 0; | |
428 | } | |
429 | ||
2b97eabc | 430 | /* create new dapm mixer control */ |
4b80b8c2 | 431 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
2b97eabc | 432 | { |
4b80b8c2 | 433 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc | 434 | int i, ret = 0; |
3e5ff4df | 435 | size_t name_len, prefix_len; |
2b97eabc | 436 | struct snd_soc_dapm_path *path; |
12ea2c78 | 437 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 438 | const char *prefix; |
fafd2176 SW |
439 | struct snd_soc_dapm_widget_list *wlist; |
440 | size_t wlistsize; | |
efb7ac3f MB |
441 | |
442 | if (dapm->codec) | |
443 | prefix = dapm->codec->name_prefix; | |
444 | else | |
445 | prefix = NULL; | |
2b97eabc | 446 | |
3e5ff4df MB |
447 | if (prefix) |
448 | prefix_len = strlen(prefix) + 1; | |
449 | else | |
450 | prefix_len = 0; | |
451 | ||
2b97eabc RP |
452 | /* add kcontrol */ |
453 | for (i = 0; i < w->num_kcontrols; i++) { | |
454 | ||
455 | /* match name */ | |
456 | list_for_each_entry(path, &w->sources, list_sink) { | |
457 | ||
458 | /* mixer/mux paths name must match control name */ | |
82cfecdc | 459 | if (path->name != (char *)w->kcontrol_news[i].name) |
2b97eabc RP |
460 | continue; |
461 | ||
82cd8764 LPC |
462 | if (w->kcontrols[i]) { |
463 | path->kcontrol = w->kcontrols[i]; | |
464 | continue; | |
465 | } | |
466 | ||
fafd2176 SW |
467 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
468 | sizeof(struct snd_soc_dapm_widget *), | |
469 | wlist = kzalloc(wlistsize, GFP_KERNEL); | |
470 | if (wlist == NULL) { | |
471 | dev_err(dapm->dev, | |
472 | "asoc: can't allocate widget list for %s\n", | |
473 | w->name); | |
474 | return -ENOMEM; | |
475 | } | |
476 | wlist->num_widgets = 1; | |
477 | wlist->widgets[0] = w; | |
478 | ||
ca9c1aae IM |
479 | /* add dapm control with long name. |
480 | * for dapm_mixer this is the concatenation of the | |
481 | * mixer and kcontrol name. | |
482 | * for dapm_mixer_named_ctl this is simply the | |
483 | * kcontrol name. | |
484 | */ | |
82cfecdc | 485 | name_len = strlen(w->kcontrol_news[i].name) + 1; |
07495f3e | 486 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
487 | name_len += 1 + strlen(w->name); |
488 | ||
219b93f5 | 489 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 490 | |
fafd2176 SW |
491 | if (path->long_name == NULL) { |
492 | kfree(wlist); | |
2b97eabc | 493 | return -ENOMEM; |
fafd2176 | 494 | } |
2b97eabc | 495 | |
ca9c1aae | 496 | switch (w->id) { |
ca9c1aae | 497 | default: |
3e5ff4df MB |
498 | /* The control will get a prefix from |
499 | * the control creation process but | |
500 | * we're also using the same prefix | |
501 | * for widgets so cut the prefix off | |
502 | * the front of the widget name. | |
503 | */ | |
ca9c1aae | 504 | snprintf(path->long_name, name_len, "%s %s", |
3e5ff4df | 505 | w->name + prefix_len, |
82cfecdc | 506 | w->kcontrol_news[i].name); |
07495f3e | 507 | break; |
ca9c1aae IM |
508 | case snd_soc_dapm_mixer_named_ctl: |
509 | snprintf(path->long_name, name_len, "%s", | |
82cfecdc | 510 | w->kcontrol_news[i].name); |
07495f3e | 511 | break; |
ca9c1aae IM |
512 | } |
513 | ||
219b93f5 MB |
514 | path->long_name[name_len - 1] = '\0'; |
515 | ||
fafd2176 SW |
516 | path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], |
517 | wlist, path->long_name, | |
518 | prefix); | |
ce6120cc | 519 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 520 | if (ret < 0) { |
f7d41ae8 JN |
521 | dev_err(dapm->dev, |
522 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
523 | path->long_name, ret); | |
fafd2176 | 524 | kfree(wlist); |
2b97eabc RP |
525 | kfree(path->long_name); |
526 | path->long_name = NULL; | |
527 | return ret; | |
528 | } | |
fad59888 | 529 | w->kcontrols[i] = path->kcontrol; |
2b97eabc RP |
530 | } |
531 | } | |
532 | return ret; | |
533 | } | |
534 | ||
535 | /* create new dapm mux control */ | |
4b80b8c2 | 536 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 537 | { |
4b80b8c2 | 538 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc RP |
539 | struct snd_soc_dapm_path *path = NULL; |
540 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 541 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 542 | const char *prefix; |
3e5ff4df | 543 | size_t prefix_len; |
af46800b | 544 | int ret; |
fafd2176 | 545 | struct snd_soc_dapm_widget_list *wlist; |
af46800b | 546 | int shared, wlistentries; |
fafd2176 | 547 | size_t wlistsize; |
af46800b | 548 | char *name; |
2b97eabc | 549 | |
af46800b SW |
550 | if (w->num_kcontrols != 1) { |
551 | dev_err(dapm->dev, | |
552 | "asoc: mux %s has incorrect number of controls\n", | |
553 | w->name); | |
2b97eabc RP |
554 | return -EINVAL; |
555 | } | |
556 | ||
1007da06 | 557 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b SW |
558 | &kcontrol); |
559 | if (kcontrol) { | |
560 | wlist = kcontrol->private_data; | |
561 | wlistentries = wlist->num_widgets + 1; | |
562 | } else { | |
563 | wlist = NULL; | |
564 | wlistentries = 1; | |
565 | } | |
fafd2176 | 566 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b SW |
567 | wlistentries * sizeof(struct snd_soc_dapm_widget *), |
568 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
fafd2176 SW |
569 | if (wlist == NULL) { |
570 | dev_err(dapm->dev, | |
571 | "asoc: can't allocate widget list for %s\n", w->name); | |
572 | return -ENOMEM; | |
573 | } | |
af46800b SW |
574 | wlist->num_widgets = wlistentries; |
575 | wlist->widgets[wlistentries - 1] = w; | |
efb7ac3f | 576 | |
af46800b SW |
577 | if (!kcontrol) { |
578 | if (dapm->codec) | |
579 | prefix = dapm->codec->name_prefix; | |
580 | else | |
581 | prefix = NULL; | |
582 | ||
583 | if (shared) { | |
584 | name = w->kcontrol_news[0].name; | |
585 | prefix_len = 0; | |
586 | } else { | |
587 | name = w->name; | |
588 | if (prefix) | |
589 | prefix_len = strlen(prefix) + 1; | |
590 | else | |
591 | prefix_len = 0; | |
592 | } | |
3e5ff4df | 593 | |
af46800b SW |
594 | /* |
595 | * The control will get a prefix from the control creation | |
596 | * process but we're also using the same prefix for widgets so | |
597 | * cut the prefix off the front of the widget name. | |
598 | */ | |
599 | kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, | |
600 | name + prefix_len, prefix); | |
601 | ret = snd_ctl_add(card, kcontrol); | |
602 | if (ret < 0) { | |
53daf208 MB |
603 | dev_err(dapm->dev, "failed to add kcontrol %s: %d\n", |
604 | w->name, ret); | |
af46800b SW |
605 | kfree(wlist); |
606 | return ret; | |
607 | } | |
608 | } | |
ce6120cc | 609 | |
af46800b | 610 | kcontrol->private_data = wlist; |
2b97eabc | 611 | |
fad59888 SW |
612 | w->kcontrols[0] = kcontrol; |
613 | ||
2b97eabc RP |
614 | list_for_each_entry(path, &w->sources, list_sink) |
615 | path->kcontrol = kcontrol; | |
616 | ||
af46800b | 617 | return 0; |
2b97eabc RP |
618 | } |
619 | ||
620 | /* create new dapm volume control */ | |
4b80b8c2 | 621 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 622 | { |
a6c65736 | 623 | if (w->num_kcontrols) |
f7d41ae8 JN |
624 | dev_err(w->dapm->dev, |
625 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 626 | |
a6c65736 | 627 | return 0; |
2b97eabc RP |
628 | } |
629 | ||
630 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 631 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
632 | { |
633 | struct snd_soc_dapm_path *p; | |
634 | ||
8ddab3f5 | 635 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
636 | p->walked = 0; |
637 | } | |
638 | ||
9949788b MB |
639 | /* We implement power down on suspend by checking the power state of |
640 | * the ALSA card - when we are suspending the ALSA state for the card | |
641 | * is set to D3. | |
642 | */ | |
643 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
644 | { | |
12ea2c78 | 645 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 646 | |
f0fba2ad | 647 | switch (level) { |
9949788b MB |
648 | case SNDRV_CTL_POWER_D3hot: |
649 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 650 | if (widget->ignore_suspend) |
f7d41ae8 JN |
651 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
652 | widget->name); | |
1547aba9 | 653 | return widget->ignore_suspend; |
9949788b MB |
654 | default: |
655 | return 1; | |
656 | } | |
657 | } | |
658 | ||
2b97eabc RP |
659 | /* |
660 | * Recursively check for a completed path to an active or physically connected | |
661 | * output widget. Returns number of complete paths. | |
662 | */ | |
663 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
664 | { | |
665 | struct snd_soc_dapm_path *path; | |
666 | int con = 0; | |
667 | ||
de02d078 MB |
668 | DAPM_UPDATE_STAT(widget, path_checks); |
669 | ||
246d0a17 MB |
670 | if (widget->id == snd_soc_dapm_supply) |
671 | return 0; | |
672 | ||
010ff262 MB |
673 | switch (widget->id) { |
674 | case snd_soc_dapm_adc: | |
675 | case snd_soc_dapm_aif_out: | |
676 | if (widget->active) | |
9949788b | 677 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
678 | default: |
679 | break; | |
680 | } | |
2b97eabc RP |
681 | |
682 | if (widget->connected) { | |
683 | /* connected pin ? */ | |
684 | if (widget->id == snd_soc_dapm_output && !widget->ext) | |
9949788b | 685 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
686 | |
687 | /* connected jack or spk ? */ | |
688 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || | |
eaeae5d9 | 689 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
9949788b | 690 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
691 | } |
692 | ||
693 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
694 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
695 | ||
bf3a9e13 MB |
696 | if (path->weak) |
697 | continue; | |
698 | ||
2b97eabc RP |
699 | if (path->walked) |
700 | continue; | |
701 | ||
702 | if (path->sink && path->connect) { | |
703 | path->walked = 1; | |
704 | con += is_connected_output_ep(path->sink); | |
705 | } | |
706 | } | |
707 | ||
708 | return con; | |
709 | } | |
710 | ||
711 | /* | |
712 | * Recursively check for a completed path to an active or physically connected | |
713 | * input widget. Returns number of complete paths. | |
714 | */ | |
715 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
716 | { | |
717 | struct snd_soc_dapm_path *path; | |
718 | int con = 0; | |
719 | ||
de02d078 MB |
720 | DAPM_UPDATE_STAT(widget, path_checks); |
721 | ||
246d0a17 MB |
722 | if (widget->id == snd_soc_dapm_supply) |
723 | return 0; | |
724 | ||
2b97eabc | 725 | /* active stream ? */ |
010ff262 MB |
726 | switch (widget->id) { |
727 | case snd_soc_dapm_dac: | |
728 | case snd_soc_dapm_aif_in: | |
729 | if (widget->active) | |
9949788b | 730 | return snd_soc_dapm_suspend_check(widget); |
010ff262 MB |
731 | default: |
732 | break; | |
733 | } | |
2b97eabc RP |
734 | |
735 | if (widget->connected) { | |
736 | /* connected pin ? */ | |
737 | if (widget->id == snd_soc_dapm_input && !widget->ext) | |
9949788b | 738 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
739 | |
740 | /* connected VMID/Bias for lower pops */ | |
741 | if (widget->id == snd_soc_dapm_vmid) | |
9949788b | 742 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
743 | |
744 | /* connected jack ? */ | |
eaeae5d9 PU |
745 | if (widget->id == snd_soc_dapm_mic || |
746 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) | |
9949788b | 747 | return snd_soc_dapm_suspend_check(widget); |
2b97eabc RP |
748 | } |
749 | ||
750 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
751 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
752 | ||
bf3a9e13 MB |
753 | if (path->weak) |
754 | continue; | |
755 | ||
2b97eabc RP |
756 | if (path->walked) |
757 | continue; | |
758 | ||
759 | if (path->source && path->connect) { | |
760 | path->walked = 1; | |
761 | con += is_connected_input_ep(path->source); | |
762 | } | |
763 | } | |
764 | ||
765 | return con; | |
766 | } | |
767 | ||
e2be2ccf JN |
768 | /* |
769 | * Handler for generic register modifier widget. | |
770 | */ | |
771 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
772 | struct snd_kcontrol *kcontrol, int event) | |
773 | { | |
774 | unsigned int val; | |
775 | ||
776 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
777 | val = w->on_val; | |
778 | else | |
779 | val = w->off_val; | |
780 | ||
0445bdf4 | 781 | soc_widget_update_bits(w, -(w->reg + 1), |
e2be2ccf JN |
782 | w->mask << w->shift, val << w->shift); |
783 | ||
784 | return 0; | |
785 | } | |
11589418 | 786 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 787 | |
d805002b MB |
788 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
789 | { | |
9b8a83b2 MB |
790 | if (w->power_checked) |
791 | return w->new_power; | |
792 | ||
d805002b | 793 | if (w->force) |
9b8a83b2 | 794 | w->new_power = 1; |
d805002b | 795 | else |
9b8a83b2 MB |
796 | w->new_power = w->power_check(w); |
797 | ||
798 | w->power_checked = true; | |
799 | ||
800 | return w->new_power; | |
d805002b MB |
801 | } |
802 | ||
cd0f2d47 MB |
803 | /* Generic check to see if a widget should be powered. |
804 | */ | |
805 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
806 | { | |
807 | int in, out; | |
808 | ||
de02d078 MB |
809 | DAPM_UPDATE_STAT(w, power_checks); |
810 | ||
cd0f2d47 | 811 | in = is_connected_input_ep(w); |
ce6120cc | 812 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 813 | out = is_connected_output_ep(w); |
ce6120cc | 814 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
815 | return out != 0 && in != 0; |
816 | } | |
817 | ||
6ea31b9f MB |
818 | /* Check to see if an ADC has power */ |
819 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
820 | { | |
821 | int in; | |
822 | ||
de02d078 MB |
823 | DAPM_UPDATE_STAT(w, power_checks); |
824 | ||
6ea31b9f MB |
825 | if (w->active) { |
826 | in = is_connected_input_ep(w); | |
ce6120cc | 827 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
828 | return in != 0; |
829 | } else { | |
830 | return dapm_generic_check_power(w); | |
831 | } | |
832 | } | |
833 | ||
834 | /* Check to see if a DAC has power */ | |
835 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
836 | { | |
837 | int out; | |
838 | ||
de02d078 MB |
839 | DAPM_UPDATE_STAT(w, power_checks); |
840 | ||
6ea31b9f MB |
841 | if (w->active) { |
842 | out = is_connected_output_ep(w); | |
ce6120cc | 843 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
844 | return out != 0; |
845 | } else { | |
846 | return dapm_generic_check_power(w); | |
847 | } | |
848 | } | |
849 | ||
246d0a17 MB |
850 | /* Check to see if a power supply is needed */ |
851 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
852 | { | |
853 | struct snd_soc_dapm_path *path; | |
246d0a17 | 854 | |
de02d078 MB |
855 | DAPM_UPDATE_STAT(w, power_checks); |
856 | ||
246d0a17 MB |
857 | /* Check if one of our outputs is connected */ |
858 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
859 | DAPM_UPDATE_STAT(w, neighbour_checks); |
860 | ||
bf3a9e13 MB |
861 | if (path->weak) |
862 | continue; | |
863 | ||
215edda3 MB |
864 | if (path->connected && |
865 | !path->connected(path->source, path->sink)) | |
866 | continue; | |
867 | ||
3017358a MB |
868 | if (!path->sink) |
869 | continue; | |
870 | ||
f68d7e16 MB |
871 | if (dapm_widget_power_check(path->sink)) |
872 | return 1; | |
246d0a17 MB |
873 | } |
874 | ||
ce6120cc | 875 | dapm_clear_walk(w->dapm); |
246d0a17 | 876 | |
f68d7e16 | 877 | return 0; |
246d0a17 MB |
878 | } |
879 | ||
35c64bca MB |
880 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
881 | { | |
882 | return 1; | |
883 | } | |
884 | ||
38357ab2 MB |
885 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
886 | struct snd_soc_dapm_widget *b, | |
828a842f | 887 | bool power_up) |
42aa3418 | 888 | { |
828a842f MB |
889 | int *sort; |
890 | ||
891 | if (power_up) | |
892 | sort = dapm_up_seq; | |
893 | else | |
894 | sort = dapm_down_seq; | |
895 | ||
38357ab2 MB |
896 | if (sort[a->id] != sort[b->id]) |
897 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
898 | if (a->subseq != b->subseq) { |
899 | if (power_up) | |
900 | return a->subseq - b->subseq; | |
901 | else | |
902 | return b->subseq - a->subseq; | |
903 | } | |
b22ead2a MB |
904 | if (a->reg != b->reg) |
905 | return a->reg - b->reg; | |
84dab567 MB |
906 | if (a->dapm != b->dapm) |
907 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 908 | |
38357ab2 MB |
909 | return 0; |
910 | } | |
42aa3418 | 911 | |
38357ab2 MB |
912 | /* Insert a widget in order into a DAPM power sequence. */ |
913 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
914 | struct list_head *list, | |
828a842f | 915 | bool power_up) |
38357ab2 MB |
916 | { |
917 | struct snd_soc_dapm_widget *w; | |
918 | ||
919 | list_for_each_entry(w, list, power_list) | |
828a842f | 920 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
921 | list_add_tail(&new_widget->power_list, &w->power_list); |
922 | return; | |
923 | } | |
924 | ||
925 | list_add_tail(&new_widget->power_list, list); | |
926 | } | |
927 | ||
68f89ad8 MB |
928 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
929 | struct snd_soc_dapm_widget *w, int event) | |
930 | { | |
931 | struct snd_soc_card *card = dapm->card; | |
932 | const char *ev_name; | |
933 | int power, ret; | |
934 | ||
935 | switch (event) { | |
936 | case SND_SOC_DAPM_PRE_PMU: | |
937 | ev_name = "PRE_PMU"; | |
938 | power = 1; | |
939 | break; | |
940 | case SND_SOC_DAPM_POST_PMU: | |
941 | ev_name = "POST_PMU"; | |
942 | power = 1; | |
943 | break; | |
944 | case SND_SOC_DAPM_PRE_PMD: | |
945 | ev_name = "PRE_PMD"; | |
946 | power = 0; | |
947 | break; | |
948 | case SND_SOC_DAPM_POST_PMD: | |
949 | ev_name = "POST_PMD"; | |
950 | power = 0; | |
951 | break; | |
952 | default: | |
953 | BUG(); | |
954 | return; | |
955 | } | |
956 | ||
957 | if (w->power != power) | |
958 | return; | |
959 | ||
960 | if (w->event && (w->event_flags & event)) { | |
961 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
962 | w->name, ev_name); | |
84e90930 | 963 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 964 | ret = w->event(w, NULL, event); |
84e90930 | 965 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
966 | if (ret < 0) |
967 | pr_err("%s: %s event failed: %d\n", | |
968 | ev_name, w->name, ret); | |
969 | } | |
970 | } | |
971 | ||
b22ead2a | 972 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 973 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 974 | struct list_head *pending) |
163cac06 | 975 | { |
3a45b867 | 976 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
977 | struct snd_soc_dapm_widget *w; |
978 | int reg, power; | |
b22ead2a MB |
979 | unsigned int value = 0; |
980 | unsigned int mask = 0; | |
981 | unsigned int cur_mask; | |
982 | ||
983 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
984 | power_list)->reg; | |
985 | ||
986 | list_for_each_entry(w, pending, power_list) { | |
987 | cur_mask = 1 << w->shift; | |
988 | BUG_ON(reg != w->reg); | |
989 | ||
990 | if (w->invert) | |
991 | power = !w->power; | |
992 | else | |
993 | power = w->power; | |
994 | ||
995 | mask |= cur_mask; | |
996 | if (power) | |
997 | value |= cur_mask; | |
998 | ||
fd8d3bc0 | 999 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1000 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1001 | w->name, reg, value, mask); | |
81628103 | 1002 | |
68f89ad8 MB |
1003 | /* Check for events */ |
1004 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1005 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1006 | } |
1007 | ||
1008 | if (reg >= 0) { | |
29376bc7 MB |
1009 | /* Any widget will do, they should all be updating the |
1010 | * same register. | |
1011 | */ | |
1012 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1013 | power_list); | |
1014 | ||
fd8d3bc0 | 1015 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1016 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1017 | value, mask, reg, card->pop_time); |
1018 | pop_wait(card->pop_time); | |
0445bdf4 | 1019 | soc_widget_update_bits(w, reg, mask, value); |
b22ead2a MB |
1020 | } |
1021 | ||
81628103 | 1022 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1023 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1024 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1025 | } |
b22ead2a | 1026 | } |
42aa3418 | 1027 | |
b22ead2a MB |
1028 | /* Apply a DAPM power sequence. |
1029 | * | |
1030 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1031 | * order to minimise the number of writes to the device required | |
1032 | * multiple widgets will be updated in a single write where possible. | |
1033 | * Currently anything that requires more than a single write is not | |
1034 | * handled. | |
1035 | */ | |
ce6120cc | 1036 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1037 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1038 | { |
1039 | struct snd_soc_dapm_widget *w, *n; | |
1040 | LIST_HEAD(pending); | |
1041 | int cur_sort = -1; | |
20e4859d | 1042 | int cur_subseq = -1; |
b22ead2a | 1043 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1044 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1045 | int ret, i; |
828a842f MB |
1046 | int *sort; |
1047 | ||
1048 | if (power_up) | |
1049 | sort = dapm_up_seq; | |
1050 | else | |
1051 | sort = dapm_down_seq; | |
163cac06 | 1052 | |
b22ead2a MB |
1053 | list_for_each_entry_safe(w, n, list, power_list) { |
1054 | ret = 0; | |
1055 | ||
1056 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1057 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1058 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1059 | if (!list_empty(&pending)) |
7be31be8 | 1060 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1061 | |
474b62d6 MB |
1062 | if (cur_dapm && cur_dapm->seq_notifier) { |
1063 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1064 | if (sort[i] == cur_sort) | |
1065 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1066 | i, |
1067 | cur_subseq); | |
474b62d6 MB |
1068 | } |
1069 | ||
b22ead2a MB |
1070 | INIT_LIST_HEAD(&pending); |
1071 | cur_sort = -1; | |
b0b3e6f8 | 1072 | cur_subseq = INT_MIN; |
b22ead2a | 1073 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1074 | cur_dapm = NULL; |
b22ead2a MB |
1075 | } |
1076 | ||
163cac06 MB |
1077 | switch (w->id) { |
1078 | case snd_soc_dapm_pre: | |
1079 | if (!w->event) | |
b22ead2a MB |
1080 | list_for_each_entry_safe_continue(w, n, list, |
1081 | power_list); | |
163cac06 | 1082 | |
b22ead2a | 1083 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1084 | ret = w->event(w, |
1085 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1086 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1087 | ret = w->event(w, |
1088 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1089 | break; |
1090 | ||
1091 | case snd_soc_dapm_post: | |
1092 | if (!w->event) | |
b22ead2a MB |
1093 | list_for_each_entry_safe_continue(w, n, list, |
1094 | power_list); | |
163cac06 | 1095 | |
b22ead2a | 1096 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1097 | ret = w->event(w, |
1098 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1099 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1100 | ret = w->event(w, |
1101 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1102 | break; |
1103 | ||
b22ead2a | 1104 | default: |
81628103 MB |
1105 | /* Queue it up for application */ |
1106 | cur_sort = sort[w->id]; | |
20e4859d | 1107 | cur_subseq = w->subseq; |
81628103 | 1108 | cur_reg = w->reg; |
7be31be8 | 1109 | cur_dapm = w->dapm; |
81628103 MB |
1110 | list_move(&w->power_list, &pending); |
1111 | break; | |
163cac06 | 1112 | } |
b22ead2a MB |
1113 | |
1114 | if (ret < 0) | |
f7d41ae8 JN |
1115 | dev_err(w->dapm->dev, |
1116 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1117 | } |
b22ead2a MB |
1118 | |
1119 | if (!list_empty(&pending)) | |
28e86808 | 1120 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1121 | |
1122 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1123 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1124 | if (sort[i] == cur_sort) | |
1125 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1126 | i, cur_subseq); |
474b62d6 | 1127 | } |
42aa3418 MB |
1128 | } |
1129 | ||
97404f2e MB |
1130 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1131 | { | |
1132 | struct snd_soc_dapm_update *update = dapm->update; | |
1133 | struct snd_soc_dapm_widget *w; | |
1134 | int ret; | |
1135 | ||
1136 | if (!update) | |
1137 | return; | |
1138 | ||
1139 | w = update->widget; | |
1140 | ||
1141 | if (w->event && | |
1142 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1143 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1144 | if (ret != 0) | |
1145 | pr_err("%s DAPM pre-event failed: %d\n", | |
1146 | w->name, ret); | |
1147 | } | |
1148 | ||
1149 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, | |
1150 | update->val); | |
1151 | if (ret < 0) | |
1152 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1153 | ||
1154 | if (w->event && | |
1155 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1156 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1157 | if (ret != 0) | |
1158 | pr_err("%s DAPM post-event failed: %d\n", | |
1159 | w->name, ret); | |
1160 | } | |
1161 | } | |
1162 | ||
9d0624a7 MB |
1163 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1164 | * they're changing state. | |
1165 | */ | |
1166 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1167 | { | |
1168 | struct snd_soc_dapm_context *d = data; | |
1169 | int ret; | |
1170 | ||
56fba41f MB |
1171 | /* If we're off and we're not supposed to be go into STANDBY */ |
1172 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1173 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1174 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1175 | if (ret != 0) | |
1176 | dev_err(d->dev, | |
1177 | "Failed to turn on bias: %d\n", ret); | |
1178 | } | |
1179 | ||
56fba41f MB |
1180 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1181 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1182 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1183 | if (ret != 0) | |
1184 | dev_err(d->dev, | |
1185 | "Failed to prepare bias: %d\n", ret); | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | /* Async callback run prior to DAPM sequences - brings to their final | |
1190 | * state. | |
1191 | */ | |
1192 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1193 | { | |
1194 | struct snd_soc_dapm_context *d = data; | |
1195 | int ret; | |
1196 | ||
1197 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1198 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1199 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1200 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1201 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1202 | if (ret != 0) | |
1203 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1204 | ret); | |
1205 | } | |
97404f2e | 1206 | |
9d0624a7 | 1207 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1208 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1209 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1210 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1211 | if (ret != 0) | |
1212 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
1213 | } | |
1214 | ||
1215 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1216 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1217 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1218 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1219 | if (ret != 0) | |
1220 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1221 | ret); | |
1222 | } | |
1223 | } | |
97404f2e | 1224 | |
fe4fda5d MB |
1225 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1226 | bool power, bool connect) | |
1227 | { | |
1228 | /* If a connection is being made or broken then that update | |
1229 | * will have marked the peer dirty, otherwise the widgets are | |
1230 | * not connected and this update has no impact. */ | |
1231 | if (!connect) | |
1232 | return; | |
1233 | ||
1234 | /* If the peer is already in the state we're moving to then we | |
1235 | * won't have an impact on it. */ | |
1236 | if (power != peer->power) | |
75c1f891 | 1237 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1238 | } |
1239 | ||
05623c43 MB |
1240 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1241 | struct list_head *up_list, | |
1242 | struct list_head *down_list) | |
1243 | { | |
db432b41 MB |
1244 | struct snd_soc_dapm_path *path; |
1245 | ||
05623c43 MB |
1246 | if (w->power == power) |
1247 | return; | |
1248 | ||
1249 | trace_snd_soc_dapm_widget_power(w, power); | |
1250 | ||
db432b41 | 1251 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1252 | * also. |
db432b41 MB |
1253 | */ |
1254 | list_for_each_entry(path, &w->sources, list_sink) { | |
1255 | if (path->source) { | |
fe4fda5d MB |
1256 | dapm_widget_set_peer_power(path->source, power, |
1257 | path->connect); | |
db432b41 MB |
1258 | } |
1259 | } | |
f3bf3e45 MB |
1260 | switch (w->id) { |
1261 | case snd_soc_dapm_supply: | |
1262 | /* Supplies can't affect their outputs, only their inputs */ | |
1263 | break; | |
1264 | default: | |
1265 | list_for_each_entry(path, &w->sinks, list_source) { | |
1266 | if (path->sink) { | |
1267 | dapm_widget_set_peer_power(path->sink, power, | |
1268 | path->connect); | |
1269 | } | |
db432b41 | 1270 | } |
f3bf3e45 | 1271 | break; |
db432b41 MB |
1272 | } |
1273 | ||
05623c43 MB |
1274 | if (power) |
1275 | dapm_seq_insert(w, up_list, true); | |
1276 | else | |
1277 | dapm_seq_insert(w, down_list, false); | |
1278 | ||
1279 | w->power = power; | |
1280 | } | |
1281 | ||
7c81beb0 MB |
1282 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1283 | struct list_head *up_list, | |
1284 | struct list_head *down_list) | |
1285 | { | |
7c81beb0 MB |
1286 | int power; |
1287 | ||
1288 | switch (w->id) { | |
1289 | case snd_soc_dapm_pre: | |
1290 | dapm_seq_insert(w, down_list, false); | |
1291 | break; | |
1292 | case snd_soc_dapm_post: | |
1293 | dapm_seq_insert(w, up_list, true); | |
1294 | break; | |
1295 | ||
1296 | default: | |
d805002b | 1297 | power = dapm_widget_power_check(w); |
7c81beb0 | 1298 | |
05623c43 | 1299 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1300 | break; |
1301 | } | |
1302 | } | |
1303 | ||
2b97eabc RP |
1304 | /* |
1305 | * Scan each dapm widget for complete audio path. | |
1306 | * A complete path is a route that has valid endpoints i.e.:- | |
1307 | * | |
1308 | * o DAC to output pin. | |
1309 | * o Input Pin to ADC. | |
1310 | * o Input pin to Output pin (bypass, sidetone) | |
1311 | * o DAC to ADC (loopback). | |
1312 | */ | |
ce6120cc | 1313 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1314 | { |
12ea2c78 | 1315 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1316 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1317 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1318 | LIST_HEAD(up_list); |
1319 | LIST_HEAD(down_list); | |
9d0624a7 | 1320 | LIST_HEAD(async_domain); |
56fba41f | 1321 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1322 | |
84e90930 MB |
1323 | trace_snd_soc_dapm_start(card); |
1324 | ||
56fba41f MB |
1325 | list_for_each_entry(d, &card->dapm_list, list) { |
1326 | if (d->n_widgets || d->codec == NULL) { | |
1327 | if (d->idle_bias_off) | |
1328 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1329 | else | |
1330 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1331 | } | |
1332 | } | |
7be31be8 | 1333 | |
de02d078 MB |
1334 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
1335 | ||
9b8a83b2 MB |
1336 | list_for_each_entry(w, &card->widgets, list) { |
1337 | w->power_checked = false; | |
1338 | } | |
1339 | ||
6d3ddc81 | 1340 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1341 | * lists indicating if they should be powered up or down. We |
1342 | * only check widgets that have been flagged as dirty but note | |
1343 | * that new widgets may be added to the dirty list while we | |
1344 | * iterate. | |
6d3ddc81 | 1345 | */ |
db432b41 | 1346 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1347 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1348 | } |
1349 | ||
f9de6d74 | 1350 | list_for_each_entry(w, &card->widgets, list) { |
db432b41 MB |
1351 | list_del_init(&w->dirty); |
1352 | ||
f9de6d74 MB |
1353 | if (w->power) { |
1354 | d = w->dapm; | |
1355 | ||
1356 | /* Supplies and micbiases only bring the | |
1357 | * context up to STANDBY as unless something | |
1358 | * else is active and passing audio they | |
1359 | * generally don't require full power. | |
1360 | */ | |
1361 | switch (w->id) { | |
1362 | case snd_soc_dapm_supply: | |
1363 | case snd_soc_dapm_micbias: | |
1364 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1365 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1366 | break; | |
1367 | default: | |
1368 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1369 | break; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | } | |
1374 | ||
b14b76a5 MB |
1375 | /* If there are no DAPM widgets then try to figure out power from the |
1376 | * event type. | |
1377 | */ | |
97c866de | 1378 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1379 | switch (event) { |
1380 | case SND_SOC_DAPM_STREAM_START: | |
1381 | case SND_SOC_DAPM_STREAM_RESUME: | |
56fba41f | 1382 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
b14b76a5 | 1383 | break; |
862af8ad | 1384 | case SND_SOC_DAPM_STREAM_STOP: |
56fba41f MB |
1385 | if (dapm->codec->active) |
1386 | dapm->target_bias_level = SND_SOC_BIAS_ON; | |
1387 | else | |
1388 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; | |
862af8ad | 1389 | break; |
50b6bce5 | 1390 | case SND_SOC_DAPM_STREAM_SUSPEND: |
56fba41f | 1391 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; |
50b6bce5 | 1392 | break; |
b14b76a5 | 1393 | case SND_SOC_DAPM_STREAM_NOP: |
56fba41f | 1394 | dapm->target_bias_level = dapm->bias_level; |
50b6bce5 | 1395 | break; |
b14b76a5 MB |
1396 | default: |
1397 | break; | |
1398 | } | |
1399 | } | |
1400 | ||
85a843c5 MB |
1401 | /* Force all contexts in the card to the same bias state if |
1402 | * they're not ground referenced. | |
1403 | */ | |
56fba41f | 1404 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1405 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1406 | if (d->target_bias_level > bias) |
1407 | bias = d->target_bias_level; | |
52ba67bf | 1408 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1409 | if (!d->idle_bias_off) |
1410 | d->target_bias_level = bias; | |
52ba67bf | 1411 | |
de02d078 | 1412 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1413 | |
9d0624a7 MB |
1414 | /* Run all the bias changes in parallel */ |
1415 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1416 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1417 | &async_domain); | |
1418 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1419 | |
6d3ddc81 | 1420 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1421 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1422 | |
97404f2e MB |
1423 | dapm_widget_update(dapm); |
1424 | ||
6d3ddc81 | 1425 | /* Now power up. */ |
828a842f | 1426 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1427 | |
9d0624a7 MB |
1428 | /* Run all the bias changes in parallel */ |
1429 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1430 | async_schedule_domain(dapm_post_sequence_async, d, | |
1431 | &async_domain); | |
1432 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1433 | |
fd8d3bc0 JN |
1434 | pop_dbg(dapm->dev, card->pop_time, |
1435 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1436 | pop_wait(card->pop_time); |
cb507e7e | 1437 | |
84e90930 MB |
1438 | trace_snd_soc_dapm_done(card); |
1439 | ||
42aa3418 | 1440 | return 0; |
2b97eabc RP |
1441 | } |
1442 | ||
79fb9387 MB |
1443 | #ifdef CONFIG_DEBUG_FS |
1444 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1445 | { | |
1446 | file->private_data = inode->i_private; | |
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1451 | char __user *user_buf, | |
1452 | size_t count, loff_t *ppos) | |
1453 | { | |
1454 | struct snd_soc_dapm_widget *w = file->private_data; | |
1455 | char *buf; | |
1456 | int in, out; | |
1457 | ssize_t ret; | |
1458 | struct snd_soc_dapm_path *p = NULL; | |
1459 | ||
1460 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1461 | if (!buf) | |
1462 | return -ENOMEM; | |
1463 | ||
1464 | in = is_connected_input_ep(w); | |
ce6120cc | 1465 | dapm_clear_walk(w->dapm); |
79fb9387 | 1466 | out = is_connected_output_ep(w); |
ce6120cc | 1467 | dapm_clear_walk(w->dapm); |
79fb9387 | 1468 | |
d033c36a | 1469 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1470 | w->name, w->power ? "On" : "Off", in, out); |
1471 | ||
d033c36a MB |
1472 | if (w->reg >= 0) |
1473 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1474 | " - R%d(0x%x) bit %d", | |
1475 | w->reg, w->reg, w->shift); | |
1476 | ||
1477 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1478 | ||
3eef08ba MB |
1479 | if (w->sname) |
1480 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1481 | w->sname, | |
1482 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1483 | |
1484 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1485 | if (p->connected && !p->connected(w, p->sink)) |
1486 | continue; | |
1487 | ||
79fb9387 MB |
1488 | if (p->connect) |
1489 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1490 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1491 | p->name ? p->name : "static", |
1492 | p->source->name); | |
1493 | } | |
1494 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1495 | if (p->connected && !p->connected(w, p->sink)) |
1496 | continue; | |
1497 | ||
79fb9387 MB |
1498 | if (p->connect) |
1499 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1500 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1501 | p->name ? p->name : "static", |
1502 | p->sink->name); | |
1503 | } | |
1504 | ||
1505 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1506 | ||
1507 | kfree(buf); | |
1508 | return ret; | |
1509 | } | |
1510 | ||
1511 | static const struct file_operations dapm_widget_power_fops = { | |
1512 | .open = dapm_widget_power_open_file, | |
1513 | .read = dapm_widget_power_read_file, | |
6038f373 | 1514 | .llseek = default_llseek, |
79fb9387 MB |
1515 | }; |
1516 | ||
ef49e4fa MB |
1517 | static int dapm_bias_open_file(struct inode *inode, struct file *file) |
1518 | { | |
1519 | file->private_data = inode->i_private; | |
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, | |
1524 | size_t count, loff_t *ppos) | |
1525 | { | |
1526 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1527 | char *level; | |
1528 | ||
1529 | switch (dapm->bias_level) { | |
1530 | case SND_SOC_BIAS_ON: | |
1531 | level = "On\n"; | |
1532 | break; | |
1533 | case SND_SOC_BIAS_PREPARE: | |
1534 | level = "Prepare\n"; | |
1535 | break; | |
1536 | case SND_SOC_BIAS_STANDBY: | |
1537 | level = "Standby\n"; | |
1538 | break; | |
1539 | case SND_SOC_BIAS_OFF: | |
1540 | level = "Off\n"; | |
1541 | break; | |
1542 | default: | |
1543 | BUG(); | |
1544 | level = "Unknown\n"; | |
1545 | break; | |
1546 | } | |
1547 | ||
1548 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1549 | strlen(level)); | |
1550 | } | |
1551 | ||
1552 | static const struct file_operations dapm_bias_fops = { | |
1553 | .open = dapm_bias_open_file, | |
1554 | .read = dapm_bias_read_file, | |
1555 | .llseek = default_llseek, | |
1556 | }; | |
1557 | ||
8eecaf62 LPC |
1558 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1559 | struct dentry *parent) | |
79fb9387 | 1560 | { |
79fb9387 MB |
1561 | struct dentry *d; |
1562 | ||
8eecaf62 LPC |
1563 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1564 | ||
1565 | if (!dapm->debugfs_dapm) { | |
1566 | printk(KERN_WARNING | |
1567 | "Failed to create DAPM debugfs directory\n"); | |
79fb9387 | 1568 | return; |
8eecaf62 | 1569 | } |
79fb9387 | 1570 | |
ef49e4fa MB |
1571 | d = debugfs_create_file("bias_level", 0444, |
1572 | dapm->debugfs_dapm, dapm, | |
1573 | &dapm_bias_fops); | |
1574 | if (!d) | |
1575 | dev_warn(dapm->dev, | |
1576 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1577 | } |
ef49e4fa | 1578 | |
d5d1e0be LPC |
1579 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1580 | { | |
1581 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1582 | struct dentry *d; | |
79fb9387 | 1583 | |
d5d1e0be LPC |
1584 | if (!dapm->debugfs_dapm || !w->name) |
1585 | return; | |
1586 | ||
1587 | d = debugfs_create_file(w->name, 0444, | |
1588 | dapm->debugfs_dapm, w, | |
1589 | &dapm_widget_power_fops); | |
1590 | if (!d) | |
1591 | dev_warn(w->dapm->dev, | |
1592 | "ASoC: Failed to create %s debugfs file\n", | |
1593 | w->name); | |
79fb9387 | 1594 | } |
d5d1e0be | 1595 | |
6c45e126 LPC |
1596 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1597 | { | |
1598 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1599 | } | |
1600 | ||
79fb9387 | 1601 | #else |
8eecaf62 LPC |
1602 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1603 | struct dentry *parent) | |
79fb9387 MB |
1604 | { |
1605 | } | |
d5d1e0be LPC |
1606 | |
1607 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1608 | { | |
1609 | } | |
1610 | ||
6c45e126 LPC |
1611 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1612 | { | |
1613 | } | |
1614 | ||
79fb9387 MB |
1615 | #endif |
1616 | ||
2b97eabc | 1617 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1618 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1619 | struct snd_kcontrol *kcontrol, int change, |
1620 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1621 | { |
1622 | struct snd_soc_dapm_path *path; | |
1623 | int found = 0; | |
1624 | ||
eff317d0 | 1625 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1626 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1627 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1628 | return -ENODEV; |
1629 | ||
3a65577d | 1630 | if (!change) |
2b97eabc RP |
1631 | return 0; |
1632 | ||
1633 | /* find dapm widget path assoc with kcontrol */ | |
8ddab3f5 | 1634 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1635 | if (path->kcontrol != kcontrol) |
1636 | continue; | |
1637 | ||
cb01e2b9 | 1638 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1639 | continue; |
1640 | ||
1641 | found = 1; | |
1642 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1643 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1644 | path->connect = 1; /* new connection */ |
75c1f891 | 1645 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1646 | } else { |
1647 | if (path->connect) | |
75c1f891 MB |
1648 | dapm_mark_dirty(path->source, |
1649 | "mux disconnection"); | |
2b97eabc | 1650 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1651 | } |
2b97eabc RP |
1652 | } |
1653 | ||
db432b41 | 1654 | if (found) { |
75c1f891 | 1655 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1656 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1657 | } |
2b97eabc RP |
1658 | |
1659 | return 0; | |
1660 | } | |
2b97eabc | 1661 | |
1b075e3f | 1662 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1663 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1664 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1665 | { |
1666 | struct snd_soc_dapm_path *path; | |
1667 | int found = 0; | |
1668 | ||
1b075e3f | 1669 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1670 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1671 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1672 | return -ENODEV; |
1673 | ||
2b97eabc | 1674 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1675 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1676 | if (path->kcontrol != kcontrol) |
1677 | continue; | |
1678 | ||
1679 | /* found, now check type */ | |
1680 | found = 1; | |
283375ce | 1681 | path->connect = connect; |
75c1f891 | 1682 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
1683 | } |
1684 | ||
db432b41 | 1685 | if (found) { |
75c1f891 | 1686 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 1687 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1688 | } |
2b97eabc RP |
1689 | |
1690 | return 0; | |
1691 | } | |
2b97eabc RP |
1692 | |
1693 | /* show dapm widget status in sys fs */ | |
1694 | static ssize_t dapm_widget_show(struct device *dev, | |
1695 | struct device_attribute *attr, char *buf) | |
1696 | { | |
f0fba2ad LG |
1697 | struct snd_soc_pcm_runtime *rtd = |
1698 | container_of(dev, struct snd_soc_pcm_runtime, dev); | |
1699 | struct snd_soc_codec *codec =rtd->codec; | |
2b97eabc RP |
1700 | struct snd_soc_dapm_widget *w; |
1701 | int count = 0; | |
1702 | char *state = "not set"; | |
1703 | ||
97c866de JN |
1704 | list_for_each_entry(w, &codec->card->widgets, list) { |
1705 | if (w->dapm != &codec->dapm) | |
1706 | continue; | |
2b97eabc RP |
1707 | |
1708 | /* only display widgets that burnm power */ | |
1709 | switch (w->id) { | |
1710 | case snd_soc_dapm_hp: | |
1711 | case snd_soc_dapm_mic: | |
1712 | case snd_soc_dapm_spk: | |
1713 | case snd_soc_dapm_line: | |
1714 | case snd_soc_dapm_micbias: | |
1715 | case snd_soc_dapm_dac: | |
1716 | case snd_soc_dapm_adc: | |
1717 | case snd_soc_dapm_pga: | |
d88429a6 | 1718 | case snd_soc_dapm_out_drv: |
2b97eabc | 1719 | case snd_soc_dapm_mixer: |
ca9c1aae | 1720 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1721 | case snd_soc_dapm_supply: |
2b97eabc RP |
1722 | if (w->name) |
1723 | count += sprintf(buf + count, "%s: %s\n", | |
1724 | w->name, w->power ? "On":"Off"); | |
1725 | break; | |
1726 | default: | |
1727 | break; | |
1728 | } | |
1729 | } | |
1730 | ||
ce6120cc | 1731 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1732 | case SND_SOC_BIAS_ON: |
1733 | state = "On"; | |
2b97eabc | 1734 | break; |
0be9898a MB |
1735 | case SND_SOC_BIAS_PREPARE: |
1736 | state = "Prepare"; | |
2b97eabc | 1737 | break; |
0be9898a MB |
1738 | case SND_SOC_BIAS_STANDBY: |
1739 | state = "Standby"; | |
2b97eabc | 1740 | break; |
0be9898a MB |
1741 | case SND_SOC_BIAS_OFF: |
1742 | state = "Off"; | |
2b97eabc RP |
1743 | break; |
1744 | } | |
1745 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1746 | ||
1747 | return count; | |
1748 | } | |
1749 | ||
1750 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1751 | ||
1752 | int snd_soc_dapm_sys_add(struct device *dev) | |
1753 | { | |
12ef193d | 1754 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1755 | } |
1756 | ||
1757 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1758 | { | |
aef90843 | 1759 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1760 | } |
1761 | ||
1762 | /* free all dapm widgets and resources */ | |
ce6120cc | 1763 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1764 | { |
1765 | struct snd_soc_dapm_widget *w, *next_w; | |
1766 | struct snd_soc_dapm_path *p, *next_p; | |
1767 | ||
97c866de JN |
1768 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1769 | if (w->dapm != dapm) | |
1770 | continue; | |
2b97eabc | 1771 | list_del(&w->list); |
8ddab3f5 JN |
1772 | /* |
1773 | * remove source and sink paths associated to this widget. | |
1774 | * While removing the path, remove reference to it from both | |
1775 | * source and sink widgets so that path is removed only once. | |
1776 | */ | |
1777 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1778 | list_del(&p->list_sink); | |
1779 | list_del(&p->list_source); | |
1780 | list_del(&p->list); | |
1781 | kfree(p->long_name); | |
1782 | kfree(p); | |
1783 | } | |
1784 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1785 | list_del(&p->list_sink); | |
1786 | list_del(&p->list_source); | |
1787 | list_del(&p->list); | |
1788 | kfree(p->long_name); | |
1789 | kfree(p); | |
1790 | } | |
fad59888 | 1791 | kfree(w->kcontrols); |
ead9b919 | 1792 | kfree(w->name); |
2b97eabc RP |
1793 | kfree(w); |
1794 | } | |
2b97eabc RP |
1795 | } |
1796 | ||
91a5fca4 LPC |
1797 | static struct snd_soc_dapm_widget *dapm_find_widget( |
1798 | struct snd_soc_dapm_context *dapm, const char *pin, | |
1799 | bool search_other_contexts) | |
a5302181 LG |
1800 | { |
1801 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 1802 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 1803 | |
97c866de | 1804 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 1805 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
1806 | if (w->dapm == dapm) |
1807 | return w; | |
1808 | else | |
1809 | fallback = w; | |
a5302181 LG |
1810 | } |
1811 | } | |
1812 | ||
91a5fca4 LPC |
1813 | if (search_other_contexts) |
1814 | return fallback; | |
1815 | ||
1816 | return NULL; | |
1817 | } | |
1818 | ||
1819 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
1820 | const char *pin, int status) | |
1821 | { | |
1822 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
1823 | ||
1824 | if (!w) { | |
1825 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
1826 | return -EINVAL; | |
0d86733c MB |
1827 | } |
1828 | ||
91a5fca4 LPC |
1829 | w->connected = status; |
1830 | if (status == 0) | |
1831 | w->force = 0; | |
75c1f891 | 1832 | dapm_mark_dirty(w, "pin configuration"); |
91a5fca4 LPC |
1833 | |
1834 | return 0; | |
a5302181 LG |
1835 | } |
1836 | ||
2b97eabc | 1837 | /** |
a5302181 | 1838 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1839 | * @dapm: DAPM context |
2b97eabc RP |
1840 | * |
1841 | * Walks all dapm audio paths and powers widgets according to their | |
1842 | * stream or path usage. | |
1843 | * | |
1844 | * Returns 0 for success. | |
1845 | */ | |
ce6120cc | 1846 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1847 | { |
ce6120cc | 1848 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1849 | } |
a5302181 | 1850 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1851 | |
ce6120cc | 1852 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1853 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1854 | { |
1855 | struct snd_soc_dapm_path *path; | |
1856 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 1857 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 1858 | const char *sink; |
215edda3 | 1859 | const char *control = route->control; |
ead9b919 JN |
1860 | const char *source; |
1861 | char prefixed_sink[80]; | |
1862 | char prefixed_source[80]; | |
2b97eabc RP |
1863 | int ret = 0; |
1864 | ||
88e8b9a8 | 1865 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
1866 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
1867 | dapm->codec->name_prefix, route->sink); | |
1868 | sink = prefixed_sink; | |
1869 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1870 | dapm->codec->name_prefix, route->source); | |
1871 | source = prefixed_source; | |
1872 | } else { | |
1873 | sink = route->sink; | |
1874 | source = route->source; | |
1875 | } | |
1876 | ||
97c866de JN |
1877 | /* |
1878 | * find src and dest widgets over all widgets but favor a widget from | |
1879 | * current DAPM context | |
1880 | */ | |
1881 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 1882 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
1883 | wtsink = w; |
1884 | if (w->dapm == dapm) | |
1885 | wsink = w; | |
2b97eabc RP |
1886 | continue; |
1887 | } | |
1888 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
1889 | wtsource = w; |
1890 | if (w->dapm == dapm) | |
1891 | wsource = w; | |
2b97eabc RP |
1892 | } |
1893 | } | |
97c866de JN |
1894 | /* use widget from another DAPM context if not found from this */ |
1895 | if (!wsink) | |
1896 | wsink = wtsink; | |
1897 | if (!wsource) | |
1898 | wsource = wtsource; | |
2b97eabc RP |
1899 | |
1900 | if (wsource == NULL || wsink == NULL) | |
1901 | return -ENODEV; | |
1902 | ||
1903 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1904 | if (!path) | |
1905 | return -ENOMEM; | |
1906 | ||
1907 | path->source = wsource; | |
1908 | path->sink = wsink; | |
215edda3 | 1909 | path->connected = route->connected; |
2b97eabc RP |
1910 | INIT_LIST_HEAD(&path->list); |
1911 | INIT_LIST_HEAD(&path->list_source); | |
1912 | INIT_LIST_HEAD(&path->list_sink); | |
1913 | ||
1914 | /* check for external widgets */ | |
1915 | if (wsink->id == snd_soc_dapm_input) { | |
1916 | if (wsource->id == snd_soc_dapm_micbias || | |
1917 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1918 | wsource->id == snd_soc_dapm_line || |
1919 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1920 | wsink->ext = 1; |
1921 | } | |
1922 | if (wsource->id == snd_soc_dapm_output) { | |
1923 | if (wsink->id == snd_soc_dapm_spk || | |
1924 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1925 | wsink->id == snd_soc_dapm_line || |
1926 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1927 | wsource->ext = 1; |
1928 | } | |
1929 | ||
1930 | /* connect static paths */ | |
1931 | if (control == NULL) { | |
8ddab3f5 | 1932 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1933 | list_add(&path->list_sink, &wsink->sources); |
1934 | list_add(&path->list_source, &wsource->sinks); | |
1935 | path->connect = 1; | |
1936 | return 0; | |
1937 | } | |
1938 | ||
1939 | /* connect dynamic paths */ | |
dc2bea61 | 1940 | switch (wsink->id) { |
2b97eabc RP |
1941 | case snd_soc_dapm_adc: |
1942 | case snd_soc_dapm_dac: | |
1943 | case snd_soc_dapm_pga: | |
d88429a6 | 1944 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
1945 | case snd_soc_dapm_input: |
1946 | case snd_soc_dapm_output: | |
1947 | case snd_soc_dapm_micbias: | |
1948 | case snd_soc_dapm_vmid: | |
1949 | case snd_soc_dapm_pre: | |
1950 | case snd_soc_dapm_post: | |
246d0a17 | 1951 | case snd_soc_dapm_supply: |
010ff262 MB |
1952 | case snd_soc_dapm_aif_in: |
1953 | case snd_soc_dapm_aif_out: | |
8ddab3f5 | 1954 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1955 | list_add(&path->list_sink, &wsink->sources); |
1956 | list_add(&path->list_source, &wsource->sinks); | |
1957 | path->connect = 1; | |
1958 | return 0; | |
1959 | case snd_soc_dapm_mux: | |
24ff33ac | 1960 | case snd_soc_dapm_virt_mux: |
74155556 | 1961 | case snd_soc_dapm_value_mux: |
ce6120cc | 1962 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 1963 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
1964 | if (ret != 0) |
1965 | goto err; | |
1966 | break; | |
1967 | case snd_soc_dapm_switch: | |
1968 | case snd_soc_dapm_mixer: | |
ca9c1aae | 1969 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 1970 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
1971 | if (ret != 0) |
1972 | goto err; | |
1973 | break; | |
1974 | case snd_soc_dapm_hp: | |
1975 | case snd_soc_dapm_mic: | |
1976 | case snd_soc_dapm_line: | |
1977 | case snd_soc_dapm_spk: | |
8ddab3f5 | 1978 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1979 | list_add(&path->list_sink, &wsink->sources); |
1980 | list_add(&path->list_source, &wsource->sinks); | |
1981 | path->connect = 0; | |
1982 | return 0; | |
1983 | } | |
1984 | return 0; | |
1985 | ||
1986 | err: | |
f7d41ae8 JN |
1987 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
1988 | source, control, sink); | |
2b97eabc RP |
1989 | kfree(path); |
1990 | return ret; | |
1991 | } | |
105f1c28 | 1992 | |
105f1c28 MB |
1993 | /** |
1994 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 1995 | * @dapm: DAPM context |
105f1c28 MB |
1996 | * @route: audio routes |
1997 | * @num: number of routes | |
1998 | * | |
1999 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2000 | * the widget receiving the audio signal, whilst the source is the sender | |
2001 | * of the audio signal. | |
2002 | * | |
2003 | * Returns 0 for success else error. On error all resources can be freed | |
2004 | * with a call to snd_soc_card_free(). | |
2005 | */ | |
ce6120cc | 2006 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2007 | const struct snd_soc_dapm_route *route, int num) |
2008 | { | |
2009 | int i, ret; | |
2010 | ||
2011 | for (i = 0; i < num; i++) { | |
ce6120cc | 2012 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 2013 | if (ret < 0) { |
f7d41ae8 JN |
2014 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
2015 | route->source, route->sink); | |
105f1c28 MB |
2016 | return ret; |
2017 | } | |
2018 | route++; | |
2019 | } | |
2020 | ||
2021 | return 0; | |
2022 | } | |
2023 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2024 | ||
bf3a9e13 MB |
2025 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2026 | const struct snd_soc_dapm_route *route) | |
2027 | { | |
2028 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2029 | route->source, | |
2030 | true); | |
2031 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2032 | route->sink, | |
2033 | true); | |
2034 | struct snd_soc_dapm_path *path; | |
2035 | int count = 0; | |
2036 | ||
2037 | if (!source) { | |
2038 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
2039 | route->source); | |
2040 | return -ENODEV; | |
2041 | } | |
2042 | ||
2043 | if (!sink) { | |
2044 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
2045 | route->sink); | |
2046 | return -ENODEV; | |
2047 | } | |
2048 | ||
2049 | if (route->control || route->connected) | |
2050 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
2051 | route->source, route->sink); | |
2052 | ||
2053 | list_for_each_entry(path, &source->sinks, list_source) { | |
2054 | if (path->sink == sink) { | |
2055 | path->weak = 1; | |
2056 | count++; | |
2057 | } | |
2058 | } | |
2059 | ||
2060 | if (count == 0) | |
2061 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
2062 | route->source, route->sink); | |
2063 | if (count > 1) | |
2064 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
2065 | count, route->source, route->sink); | |
2066 | ||
2067 | return 0; | |
2068 | } | |
2069 | ||
2070 | /** | |
2071 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2072 | * @dapm: DAPM context | |
2073 | * @route: audio routes | |
2074 | * @num: number of routes | |
2075 | * | |
2076 | * Mark existing routes matching those specified in the passed array | |
2077 | * as being weak, meaning that they are ignored for the purpose of | |
2078 | * power decisions. The main intended use case is for sidetone paths | |
2079 | * which couple audio between other independent paths if they are both | |
2080 | * active in order to make the combination work better at the user | |
2081 | * level but which aren't intended to be "used". | |
2082 | * | |
2083 | * Note that CODEC drivers should not use this as sidetone type paths | |
2084 | * can frequently also be used as bypass paths. | |
2085 | */ | |
2086 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2087 | const struct snd_soc_dapm_route *route, int num) | |
2088 | { | |
2089 | int i, err; | |
2090 | int ret = 0; | |
2091 | ||
2092 | for (i = 0; i < num; i++) { | |
2093 | err = snd_soc_dapm_weak_route(dapm, route); | |
2094 | if (err) | |
2095 | ret = err; | |
2096 | route++; | |
2097 | } | |
2098 | ||
2099 | return ret; | |
2100 | } | |
2101 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2102 | ||
2b97eabc RP |
2103 | /** |
2104 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2105 | * @dapm: DAPM context |
2b97eabc RP |
2106 | * |
2107 | * Checks the codec for any new dapm widgets and creates them if found. | |
2108 | * | |
2109 | * Returns 0 for success. | |
2110 | */ | |
ce6120cc | 2111 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2112 | { |
2113 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2114 | unsigned int val; |
2b97eabc | 2115 | |
97c866de | 2116 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2117 | { |
2118 | if (w->new) | |
2119 | continue; | |
2120 | ||
fad59888 SW |
2121 | if (w->num_kcontrols) { |
2122 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2123 | sizeof(struct snd_kcontrol *), | |
2124 | GFP_KERNEL); | |
2125 | if (!w->kcontrols) | |
2126 | return -ENOMEM; | |
2127 | } | |
2128 | ||
2b97eabc RP |
2129 | switch(w->id) { |
2130 | case snd_soc_dapm_switch: | |
2131 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2132 | case snd_soc_dapm_mixer_named_ctl: |
b75576d7 | 2133 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2134 | dapm_new_mixer(w); |
2b97eabc RP |
2135 | break; |
2136 | case snd_soc_dapm_mux: | |
24ff33ac | 2137 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2138 | case snd_soc_dapm_value_mux: |
b75576d7 | 2139 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2140 | dapm_new_mux(w); |
2b97eabc RP |
2141 | break; |
2142 | case snd_soc_dapm_adc: | |
010ff262 | 2143 | case snd_soc_dapm_aif_out: |
b75576d7 MB |
2144 | w->power_check = dapm_adc_check_power; |
2145 | break; | |
2b97eabc | 2146 | case snd_soc_dapm_dac: |
010ff262 | 2147 | case snd_soc_dapm_aif_in: |
b75576d7 MB |
2148 | w->power_check = dapm_dac_check_power; |
2149 | break; | |
2b97eabc | 2150 | case snd_soc_dapm_pga: |
d88429a6 | 2151 | case snd_soc_dapm_out_drv: |
b75576d7 | 2152 | w->power_check = dapm_generic_check_power; |
4b80b8c2 | 2153 | dapm_new_pga(w); |
2b97eabc RP |
2154 | break; |
2155 | case snd_soc_dapm_input: | |
2156 | case snd_soc_dapm_output: | |
2157 | case snd_soc_dapm_micbias: | |
2158 | case snd_soc_dapm_spk: | |
2159 | case snd_soc_dapm_hp: | |
2160 | case snd_soc_dapm_mic: | |
2161 | case snd_soc_dapm_line: | |
b75576d7 MB |
2162 | w->power_check = dapm_generic_check_power; |
2163 | break; | |
246d0a17 MB |
2164 | case snd_soc_dapm_supply: |
2165 | w->power_check = dapm_supply_check_power; | |
2b97eabc RP |
2166 | case snd_soc_dapm_vmid: |
2167 | case snd_soc_dapm_pre: | |
2168 | case snd_soc_dapm_post: | |
2169 | break; | |
2170 | } | |
b66a70d5 | 2171 | |
35c64bca MB |
2172 | if (!w->power_check) |
2173 | w->power_check = dapm_always_on_check_power; | |
2174 | ||
b66a70d5 MB |
2175 | /* Read the initial power state from the device */ |
2176 | if (w->reg >= 0) { | |
0445bdf4 | 2177 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2178 | val &= 1 << w->shift; |
2179 | if (w->invert) | |
2180 | val = !val; | |
2181 | ||
2182 | if (val) | |
2183 | w->power = 1; | |
2184 | } | |
2185 | ||
2b97eabc | 2186 | w->new = 1; |
d5d1e0be | 2187 | |
7508b12a | 2188 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2189 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2190 | } |
2191 | ||
ce6120cc | 2192 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
2193 | return 0; |
2194 | } | |
2195 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2196 | ||
2197 | /** | |
2198 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2199 | * @kcontrol: mixer control | |
ac11a2b3 | 2200 | * @ucontrol: control element information |
2b97eabc RP |
2201 | * |
2202 | * Callback to get the value of a dapm mixer control. | |
2203 | * | |
2204 | * Returns 0 for success. | |
2205 | */ | |
2206 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2207 | struct snd_ctl_elem_value *ucontrol) | |
2208 | { | |
fafd2176 SW |
2209 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2210 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2211 | struct soc_mixer_control *mc = |
2212 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2213 | unsigned int reg = mc->reg; |
2214 | unsigned int shift = mc->shift; | |
2215 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2216 | int max = mc->max; |
815ecf8d JS |
2217 | unsigned int invert = mc->invert; |
2218 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 2219 | |
2b97eabc RP |
2220 | ucontrol->value.integer.value[0] = |
2221 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
2222 | if (shift != rshift) | |
2223 | ucontrol->value.integer.value[1] = | |
2224 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
2225 | if (invert) { | |
2226 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2227 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2228 | if (shift != rshift) |
2229 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2230 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
2231 | } |
2232 | ||
2233 | return 0; | |
2234 | } | |
2235 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2236 | ||
2237 | /** | |
2238 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2239 | * @kcontrol: mixer control | |
ac11a2b3 | 2240 | * @ucontrol: control element information |
2b97eabc RP |
2241 | * |
2242 | * Callback to set the value of a dapm mixer control. | |
2243 | * | |
2244 | * Returns 0 for success. | |
2245 | */ | |
2246 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2247 | struct snd_ctl_elem_value *ucontrol) | |
2248 | { | |
fafd2176 SW |
2249 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2250 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2251 | struct snd_soc_codec *codec = widget->codec; | |
4eaa9819 JS |
2252 | struct soc_mixer_control *mc = |
2253 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2254 | unsigned int reg = mc->reg; |
2255 | unsigned int shift = mc->shift; | |
4eaa9819 | 2256 | int max = mc->max; |
815ecf8d JS |
2257 | unsigned int mask = (1 << fls(max)) - 1; |
2258 | unsigned int invert = mc->invert; | |
e9cf7049 | 2259 | unsigned int val; |
97404f2e MB |
2260 | int connect, change; |
2261 | struct snd_soc_dapm_update update; | |
fafd2176 | 2262 | int wi; |
2b97eabc RP |
2263 | |
2264 | val = (ucontrol->value.integer.value[0] & mask); | |
2265 | ||
2266 | if (invert) | |
a7a4ac86 | 2267 | val = max - val; |
e9cf7049 | 2268 | mask = mask << shift; |
2b97eabc | 2269 | val = val << shift; |
2b97eabc | 2270 | |
fafd2176 SW |
2271 | if (val) |
2272 | /* new connection */ | |
2273 | connect = invert ? 0 : 1; | |
2274 | else | |
2275 | /* old connection must be powered down */ | |
2276 | connect = invert ? 1 : 0; | |
2277 | ||
2278 | mutex_lock(&codec->mutex); | |
2b97eabc | 2279 | |
e9cf7049 | 2280 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2281 | if (change) { |
fafd2176 SW |
2282 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2283 | widget = wlist->widgets[wi]; | |
283375ce | 2284 | |
fafd2176 | 2285 | widget->value = val; |
97404f2e | 2286 | |
fafd2176 SW |
2287 | update.kcontrol = kcontrol; |
2288 | update.widget = widget; | |
2289 | update.reg = reg; | |
2290 | update.mask = mask; | |
2291 | update.val = val; | |
2292 | widget->dapm->update = &update; | |
97404f2e | 2293 | |
fafd2176 SW |
2294 | dapm_mixer_update_power(widget, kcontrol, connect); |
2295 | ||
2296 | widget->dapm->update = NULL; | |
2297 | } | |
283375ce MB |
2298 | } |
2299 | ||
fafd2176 | 2300 | mutex_unlock(&codec->mutex); |
97404f2e | 2301 | return 0; |
2b97eabc RP |
2302 | } |
2303 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2304 | ||
2305 | /** | |
2306 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2307 | * @kcontrol: mixer control | |
ac11a2b3 | 2308 | * @ucontrol: control element information |
2b97eabc RP |
2309 | * |
2310 | * Callback to get the value of a dapm enumerated double mixer control. | |
2311 | * | |
2312 | * Returns 0 for success. | |
2313 | */ | |
2314 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2315 | struct snd_ctl_elem_value *ucontrol) | |
2316 | { | |
fafd2176 SW |
2317 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2318 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2319 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2320 | unsigned int val, bitmask; |
2b97eabc | 2321 | |
f8ba0b7b | 2322 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
2323 | ; |
2324 | val = snd_soc_read(widget->codec, e->reg); | |
2325 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
2326 | if (e->shift_l != e->shift_r) | |
2327 | ucontrol->value.enumerated.item[1] = | |
2328 | (val >> e->shift_r) & (bitmask - 1); | |
2329 | ||
2330 | return 0; | |
2331 | } | |
2332 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2333 | ||
2334 | /** | |
2335 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2336 | * @kcontrol: mixer control | |
ac11a2b3 | 2337 | * @ucontrol: control element information |
2b97eabc RP |
2338 | * |
2339 | * Callback to set the value of a dapm enumerated double mixer control. | |
2340 | * | |
2341 | * Returns 0 for success. | |
2342 | */ | |
2343 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2344 | struct snd_ctl_elem_value *ucontrol) | |
2345 | { | |
fafd2176 SW |
2346 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2347 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2348 | struct snd_soc_codec *codec = widget->codec; | |
2b97eabc | 2349 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2350 | unsigned int val, mux, change; |
46f5822f | 2351 | unsigned int mask, bitmask; |
97404f2e | 2352 | struct snd_soc_dapm_update update; |
fafd2176 | 2353 | int wi; |
2b97eabc | 2354 | |
f8ba0b7b | 2355 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 2356 | ; |
f8ba0b7b | 2357 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2358 | return -EINVAL; |
2359 | mux = ucontrol->value.enumerated.item[0]; | |
2360 | val = mux << e->shift_l; | |
2361 | mask = (bitmask - 1) << e->shift_l; | |
2362 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2363 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2364 | return -EINVAL; |
2365 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2366 | mask |= (bitmask - 1) << e->shift_r; | |
2367 | } | |
2368 | ||
fafd2176 SW |
2369 | mutex_lock(&codec->mutex); |
2370 | ||
3a65577d | 2371 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2372 | if (change) { |
2373 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2374 | widget = wlist->widgets[wi]; | |
2375 | ||
2376 | widget->value = val; | |
1642e3d4 | 2377 | |
fafd2176 SW |
2378 | update.kcontrol = kcontrol; |
2379 | update.widget = widget; | |
2380 | update.reg = e->reg; | |
2381 | update.mask = mask; | |
2382 | update.val = val; | |
2383 | widget->dapm->update = &update; | |
1642e3d4 | 2384 | |
fafd2176 | 2385 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 2386 | |
fafd2176 SW |
2387 | widget->dapm->update = NULL; |
2388 | } | |
2389 | } | |
2b97eabc | 2390 | |
fafd2176 | 2391 | mutex_unlock(&codec->mutex); |
97404f2e | 2392 | return change; |
2b97eabc RP |
2393 | } |
2394 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2395 | ||
d2b247a8 MB |
2396 | /** |
2397 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2398 | * @kcontrol: mixer control | |
2399 | * @ucontrol: control element information | |
2400 | * | |
2401 | * Returns 0 for success. | |
2402 | */ | |
2403 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2404 | struct snd_ctl_elem_value *ucontrol) | |
2405 | { | |
fafd2176 SW |
2406 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2407 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2408 | |
2409 | ucontrol->value.enumerated.item[0] = widget->value; | |
2410 | ||
2411 | return 0; | |
2412 | } | |
2413 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2414 | ||
2415 | /** | |
2416 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2417 | * @kcontrol: mixer control | |
2418 | * @ucontrol: control element information | |
2419 | * | |
2420 | * Returns 0 for success. | |
2421 | */ | |
2422 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2423 | struct snd_ctl_elem_value *ucontrol) | |
2424 | { | |
fafd2176 SW |
2425 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2426 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2427 | struct snd_soc_codec *codec = widget->codec; | |
d2b247a8 MB |
2428 | struct soc_enum *e = |
2429 | (struct soc_enum *)kcontrol->private_value; | |
2430 | int change; | |
2431 | int ret = 0; | |
fafd2176 | 2432 | int wi; |
d2b247a8 MB |
2433 | |
2434 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2435 | return -EINVAL; | |
2436 | ||
fafd2176 | 2437 | mutex_lock(&codec->mutex); |
d2b247a8 MB |
2438 | |
2439 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2440 | if (change) { |
2441 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2442 | widget = wlist->widgets[wi]; | |
2443 | ||
2444 | widget->value = ucontrol->value.enumerated.item[0]; | |
2445 | ||
2446 | dapm_mux_update_power(widget, kcontrol, change, | |
2447 | widget->value, e); | |
2448 | } | |
2449 | } | |
d2b247a8 | 2450 | |
fafd2176 | 2451 | mutex_unlock(&codec->mutex); |
d2b247a8 MB |
2452 | return ret; |
2453 | } | |
2454 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2455 | ||
2e72f8e3 PU |
2456 | /** |
2457 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2458 | * callback | |
2459 | * @kcontrol: mixer control | |
2460 | * @ucontrol: control element information | |
2461 | * | |
2462 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2463 | * | |
2464 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2465 | * used for handling bitfield coded enumeration for example. | |
2466 | * | |
2467 | * Returns 0 for success. | |
2468 | */ | |
2469 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2470 | struct snd_ctl_elem_value *ucontrol) | |
2471 | { | |
fafd2176 SW |
2472 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2473 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2474 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2475 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2476 | |
2477 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2478 | val = (reg_val >> e->shift_l) & e->mask; | |
2479 | for (mux = 0; mux < e->max; mux++) { | |
2480 | if (val == e->values[mux]) | |
2481 | break; | |
2482 | } | |
2483 | ucontrol->value.enumerated.item[0] = mux; | |
2484 | if (e->shift_l != e->shift_r) { | |
2485 | val = (reg_val >> e->shift_r) & e->mask; | |
2486 | for (mux = 0; mux < e->max; mux++) { | |
2487 | if (val == e->values[mux]) | |
2488 | break; | |
2489 | } | |
2490 | ucontrol->value.enumerated.item[1] = mux; | |
2491 | } | |
2492 | ||
2493 | return 0; | |
2494 | } | |
2495 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2496 | ||
2497 | /** | |
2498 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2499 | * callback | |
2500 | * @kcontrol: mixer control | |
2501 | * @ucontrol: control element information | |
2502 | * | |
2503 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2504 | * | |
2505 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2506 | * used for handling bitfield coded enumeration for example. | |
2507 | * | |
2508 | * Returns 0 for success. | |
2509 | */ | |
2510 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2511 | struct snd_ctl_elem_value *ucontrol) | |
2512 | { | |
fafd2176 SW |
2513 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2514 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2515 | struct snd_soc_codec *codec = widget->codec; | |
74155556 | 2516 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2517 | unsigned int val, mux, change; |
46f5822f | 2518 | unsigned int mask; |
97404f2e | 2519 | struct snd_soc_dapm_update update; |
fafd2176 | 2520 | int wi; |
2e72f8e3 PU |
2521 | |
2522 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2523 | return -EINVAL; | |
2524 | mux = ucontrol->value.enumerated.item[0]; | |
2525 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2526 | mask = e->mask << e->shift_l; | |
2527 | if (e->shift_l != e->shift_r) { | |
2528 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2529 | return -EINVAL; | |
2530 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2531 | mask |= e->mask << e->shift_r; | |
2532 | } | |
2533 | ||
fafd2176 SW |
2534 | mutex_lock(&codec->mutex); |
2535 | ||
3a65577d | 2536 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2537 | if (change) { |
2538 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2539 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2540 | |
fafd2176 | 2541 | widget->value = val; |
1642e3d4 | 2542 | |
fafd2176 SW |
2543 | update.kcontrol = kcontrol; |
2544 | update.widget = widget; | |
2545 | update.reg = e->reg; | |
2546 | update.mask = mask; | |
2547 | update.val = val; | |
2548 | widget->dapm->update = &update; | |
1642e3d4 | 2549 | |
fafd2176 SW |
2550 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
2551 | ||
2552 | widget->dapm->update = NULL; | |
2553 | } | |
2554 | } | |
2e72f8e3 | 2555 | |
fafd2176 | 2556 | mutex_unlock(&codec->mutex); |
97404f2e | 2557 | return change; |
2e72f8e3 PU |
2558 | } |
2559 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2560 | ||
8b37dbd2 MB |
2561 | /** |
2562 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2563 | * | |
2564 | * @kcontrol: mixer control | |
2565 | * @uinfo: control element information | |
2566 | * | |
2567 | * Callback to provide information about a pin switch control. | |
2568 | */ | |
2569 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2570 | struct snd_ctl_elem_info *uinfo) | |
2571 | { | |
2572 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2573 | uinfo->count = 1; | |
2574 | uinfo->value.integer.min = 0; | |
2575 | uinfo->value.integer.max = 1; | |
2576 | ||
2577 | return 0; | |
2578 | } | |
2579 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2580 | ||
2581 | /** | |
2582 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2583 | * | |
2584 | * @kcontrol: mixer control | |
2585 | * @ucontrol: Value | |
2586 | */ | |
2587 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2588 | struct snd_ctl_elem_value *ucontrol) | |
2589 | { | |
2590 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2591 | const char *pin = (const char *)kcontrol->private_value; | |
2592 | ||
2593 | mutex_lock(&codec->mutex); | |
2594 | ||
2595 | ucontrol->value.integer.value[0] = | |
ce6120cc | 2596 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
2597 | |
2598 | mutex_unlock(&codec->mutex); | |
2599 | ||
2600 | return 0; | |
2601 | } | |
2602 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2603 | ||
2604 | /** | |
2605 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2606 | * | |
2607 | * @kcontrol: mixer control | |
2608 | * @ucontrol: Value | |
2609 | */ | |
2610 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2611 | struct snd_ctl_elem_value *ucontrol) | |
2612 | { | |
2613 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2614 | const char *pin = (const char *)kcontrol->private_value; | |
2615 | ||
2616 | mutex_lock(&codec->mutex); | |
2617 | ||
2618 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 2619 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 2620 | else |
ce6120cc | 2621 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 2622 | |
ce6120cc | 2623 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
2624 | |
2625 | mutex_unlock(&codec->mutex); | |
2626 | ||
2627 | return 0; | |
2628 | } | |
2629 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2630 | ||
2b97eabc RP |
2631 | /** |
2632 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 2633 | * @dapm: DAPM context |
2b97eabc RP |
2634 | * @widget: widget template |
2635 | * | |
2636 | * Creates a new dapm control based upon the template. | |
2637 | * | |
2638 | * Returns 0 for success else error. | |
2639 | */ | |
ce6120cc | 2640 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
2641 | const struct snd_soc_dapm_widget *widget) |
2642 | { | |
2643 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2644 | size_t name_len; |
2b97eabc RP |
2645 | |
2646 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
2647 | return -ENOMEM; | |
2648 | ||
ead9b919 | 2649 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 2650 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2651 | name_len += 1 + strlen(dapm->codec->name_prefix); |
2652 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2653 | if (w->name == NULL) { | |
2654 | kfree(w); | |
2655 | return -ENOMEM; | |
2656 | } | |
88e8b9a8 | 2657 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2658 | snprintf(w->name, name_len, "%s %s", |
2659 | dapm->codec->name_prefix, widget->name); | |
2660 | else | |
2661 | snprintf(w->name, name_len, "%s", widget->name); | |
2662 | ||
97c866de | 2663 | dapm->n_widgets++; |
ce6120cc LG |
2664 | w->dapm = dapm; |
2665 | w->codec = dapm->codec; | |
b7950641 | 2666 | w->platform = dapm->platform; |
2b97eabc RP |
2667 | INIT_LIST_HEAD(&w->sources); |
2668 | INIT_LIST_HEAD(&w->sinks); | |
2669 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 2670 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 2671 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2672 | |
2673 | /* machine layer set ups unconnected pins and insertions */ | |
2674 | w->connected = 1; | |
2675 | return 0; | |
2676 | } | |
2677 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2678 | ||
4ba1327a MB |
2679 | /** |
2680 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2681 | * @dapm: DAPM context |
4ba1327a MB |
2682 | * @widget: widget array |
2683 | * @num: number of widgets | |
2684 | * | |
2685 | * Creates new DAPM controls based upon the templates. | |
2686 | * | |
2687 | * Returns 0 for success else error. | |
2688 | */ | |
ce6120cc | 2689 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2690 | const struct snd_soc_dapm_widget *widget, |
2691 | int num) | |
2692 | { | |
2693 | int i, ret; | |
2694 | ||
2695 | for (i = 0; i < num; i++) { | |
ce6120cc | 2696 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2697 | if (ret < 0) { |
f7d41ae8 JN |
2698 | dev_err(dapm->dev, |
2699 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2700 | widget->name, ret); | |
4ba1327a | 2701 | return ret; |
b8b33cb5 | 2702 | } |
4ba1327a MB |
2703 | widget++; |
2704 | } | |
2705 | return 0; | |
2706 | } | |
2707 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2708 | ||
ce6120cc | 2709 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2710 | const char *stream, int event) |
2b97eabc RP |
2711 | { |
2712 | struct snd_soc_dapm_widget *w; | |
2713 | ||
97c866de | 2714 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc | 2715 | { |
97c866de | 2716 | if (!w->sname || w->dapm != dapm) |
2b97eabc | 2717 | continue; |
ee47b364 | 2718 | dev_vdbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
f7d41ae8 | 2719 | w->name, w->sname, stream, event); |
2b97eabc | 2720 | if (strstr(w->sname, stream)) { |
75c1f891 | 2721 | dapm_mark_dirty(w, "stream event"); |
2b97eabc RP |
2722 | switch(event) { |
2723 | case SND_SOC_DAPM_STREAM_START: | |
2724 | w->active = 1; | |
2725 | break; | |
2726 | case SND_SOC_DAPM_STREAM_STOP: | |
2727 | w->active = 0; | |
2728 | break; | |
2729 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2730 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2731 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2732 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2733 | break; | |
2734 | } | |
2735 | } | |
2736 | } | |
2b97eabc | 2737 | |
ce6120cc | 2738 | dapm_power_widgets(dapm, event); |
64a648c2 LG |
2739 | |
2740 | /* do we need to notify any clients that DAPM stream is complete */ | |
2741 | if (dapm->stream_event) | |
2742 | dapm->stream_event(dapm, event); | |
ce6120cc LG |
2743 | } |
2744 | ||
2745 | /** | |
2746 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2747 | * @rtd: PCM runtime data | |
2748 | * @stream: stream name | |
2749 | * @event: stream event | |
2750 | * | |
2751 | * Sends a stream event to the dapm core. The core then makes any | |
2752 | * necessary widget power changes. | |
2753 | * | |
2754 | * Returns 0 for success else error. | |
2755 | */ | |
2756 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2757 | const char *stream, int event) | |
2758 | { | |
2759 | struct snd_soc_codec *codec = rtd->codec; | |
2760 | ||
2761 | if (stream == NULL) | |
2762 | return 0; | |
2763 | ||
2764 | mutex_lock(&codec->mutex); | |
2765 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2766 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2767 | return 0; |
2768 | } | |
2b97eabc RP |
2769 | |
2770 | /** | |
a5302181 | 2771 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2772 | * @dapm: DAPM context |
a5302181 | 2773 | * @pin: pin name |
2b97eabc | 2774 | * |
74b8f955 | 2775 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2776 | * a valid audio route and active audio stream. |
2777 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2778 | * do any widget power switching. | |
2b97eabc | 2779 | */ |
ce6120cc | 2780 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2781 | { |
ce6120cc | 2782 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2783 | } |
2784 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2785 | |
da34183e MB |
2786 | /** |
2787 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2788 | * @dapm: DAPM context |
da34183e MB |
2789 | * @pin: pin name |
2790 | * | |
2791 | * Enables input/output pin regardless of any other state. This is | |
2792 | * intended for use with microphone bias supplies used in microphone | |
2793 | * jack detection. | |
2794 | * | |
2795 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2796 | * do any widget power switching. | |
2797 | */ | |
ce6120cc LG |
2798 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2799 | const char *pin) | |
da34183e | 2800 | { |
91a5fca4 | 2801 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 2802 | |
91a5fca4 LPC |
2803 | if (!w) { |
2804 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2805 | return -EINVAL; | |
0d86733c MB |
2806 | } |
2807 | ||
91a5fca4 LPC |
2808 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
2809 | w->connected = 1; | |
2810 | w->force = 1; | |
75c1f891 | 2811 | dapm_mark_dirty(w, "force enable"); |
da34183e | 2812 | |
91a5fca4 | 2813 | return 0; |
da34183e MB |
2814 | } |
2815 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2816 | ||
a5302181 LG |
2817 | /** |
2818 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2819 | * @dapm: DAPM context |
a5302181 LG |
2820 | * @pin: pin name |
2821 | * | |
74b8f955 | 2822 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2823 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2824 | * do any widget power switching. | |
2825 | */ | |
ce6120cc LG |
2826 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2827 | const char *pin) | |
a5302181 | 2828 | { |
ce6120cc | 2829 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2830 | } |
a5302181 | 2831 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2832 | |
5817b52a MB |
2833 | /** |
2834 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2835 | * @dapm: DAPM context |
5817b52a MB |
2836 | * @pin: pin name |
2837 | * | |
2838 | * Marks the specified pin as being not connected, disabling it along | |
2839 | * any parent or child widgets. At present this is identical to | |
2840 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2841 | * additional things such as disabling controls which only affect | |
2842 | * paths through the pin. | |
2843 | * | |
2844 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2845 | * do any widget power switching. | |
2846 | */ | |
ce6120cc | 2847 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2848 | { |
ce6120cc | 2849 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2850 | } |
2851 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2852 | ||
eeec12bf | 2853 | /** |
a5302181 | 2854 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2855 | * @dapm: DAPM context |
a5302181 | 2856 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2857 | * |
a5302181 | 2858 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2859 | * |
a5302181 | 2860 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2861 | */ |
ce6120cc LG |
2862 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2863 | const char *pin) | |
eeec12bf | 2864 | { |
91a5fca4 | 2865 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 2866 | |
91a5fca4 LPC |
2867 | if (w) |
2868 | return w->connected; | |
a68b38ad | 2869 | |
eeec12bf GG |
2870 | return 0; |
2871 | } | |
a5302181 | 2872 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2873 | |
1547aba9 MB |
2874 | /** |
2875 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2876 | * @dapm: DAPM context |
1547aba9 MB |
2877 | * @pin: audio signal pin endpoint (or start point) |
2878 | * | |
2879 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2880 | * system is disabled a path between two endpoints flagged as ignoring | |
2881 | * suspend will not be disabled. The path must already be enabled via | |
2882 | * normal means at suspend time, it will not be turned on if it was not | |
2883 | * already enabled. | |
2884 | */ | |
ce6120cc LG |
2885 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2886 | const char *pin) | |
1547aba9 | 2887 | { |
91a5fca4 | 2888 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 2889 | |
91a5fca4 LPC |
2890 | if (!w) { |
2891 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2892 | return -EINVAL; | |
1547aba9 MB |
2893 | } |
2894 | ||
91a5fca4 LPC |
2895 | w->ignore_suspend = 1; |
2896 | ||
2897 | return 0; | |
1547aba9 MB |
2898 | } |
2899 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2900 | ||
2b97eabc RP |
2901 | /** |
2902 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 2903 | * @dapm: DAPM context |
2b97eabc RP |
2904 | * |
2905 | * Free all dapm widgets and resources. | |
2906 | */ | |
ce6120cc | 2907 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 2908 | { |
ce6120cc | 2909 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 2910 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 2911 | dapm_free_widgets(dapm); |
7be31be8 | 2912 | list_del(&dapm->list); |
2b97eabc RP |
2913 | } |
2914 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
2915 | ||
ce6120cc | 2916 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 2917 | { |
51737470 MB |
2918 | struct snd_soc_dapm_widget *w; |
2919 | LIST_HEAD(down_list); | |
2920 | int powerdown = 0; | |
2921 | ||
97c866de JN |
2922 | list_for_each_entry(w, &dapm->card->widgets, list) { |
2923 | if (w->dapm != dapm) | |
2924 | continue; | |
51737470 | 2925 | if (w->power) { |
828a842f | 2926 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 2927 | w->power = 0; |
51737470 MB |
2928 | powerdown = 1; |
2929 | } | |
2930 | } | |
2931 | ||
2932 | /* If there were no widgets to power down we're already in | |
2933 | * standby. | |
2934 | */ | |
2935 | if (powerdown) { | |
ed5a4c47 | 2936 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE); |
828a842f | 2937 | dapm_seq_run(dapm, &down_list, 0, false); |
ed5a4c47 | 2938 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY); |
51737470 | 2939 | } |
f0fba2ad LG |
2940 | } |
2941 | ||
2942 | /* | |
2943 | * snd_soc_dapm_shutdown - callback for system shutdown | |
2944 | */ | |
2945 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
2946 | { | |
2947 | struct snd_soc_codec *codec; | |
2948 | ||
ce6120cc LG |
2949 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
2950 | soc_dapm_shutdown_codec(&codec->dapm); | |
ed5a4c47 | 2951 | snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF); |
ce6120cc | 2952 | } |
51737470 MB |
2953 | } |
2954 | ||
2b97eabc | 2955 | /* Module information */ |
d331124d | 2956 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
2957 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
2958 | MODULE_LICENSE("GPL"); |