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> |
f1aac484 | 42 | #include <linux/pm_runtime.h> |
5a0e3ad6 | 43 | #include <linux/slab.h> |
2b97eabc RP |
44 | #include <sound/core.h> |
45 | #include <sound/pcm.h> | |
46 | #include <sound/pcm_params.h> | |
ce6120cc | 47 | #include <sound/soc.h> |
2b97eabc RP |
48 | #include <sound/initval.h> |
49 | ||
84e90930 MB |
50 | #include <trace/events/asoc.h> |
51 | ||
de02d078 MB |
52 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
53 | ||
2b97eabc RP |
54 | /* dapm power sequences - make this per codec in the future */ |
55 | static int dapm_up_seq[] = { | |
38357ab2 MB |
56 | [snd_soc_dapm_pre] = 0, |
57 | [snd_soc_dapm_supply] = 1, | |
58 | [snd_soc_dapm_micbias] = 2, | |
010ff262 MB |
59 | [snd_soc_dapm_aif_in] = 3, |
60 | [snd_soc_dapm_aif_out] = 3, | |
61 | [snd_soc_dapm_mic] = 4, | |
62 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 63 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
64 | [snd_soc_dapm_value_mux] = 5, |
65 | [snd_soc_dapm_dac] = 6, | |
66 | [snd_soc_dapm_mixer] = 7, | |
67 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
68 | [snd_soc_dapm_pga] = 8, | |
69 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 70 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
71 | [snd_soc_dapm_hp] = 10, |
72 | [snd_soc_dapm_spk] = 10, | |
73 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 74 | }; |
ca9c1aae | 75 | |
2b97eabc | 76 | static int dapm_down_seq[] = { |
38357ab2 MB |
77 | [snd_soc_dapm_pre] = 0, |
78 | [snd_soc_dapm_adc] = 1, | |
79 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 80 | [snd_soc_dapm_spk] = 2, |
d88429a6 | 81 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
82 | [snd_soc_dapm_pga] = 4, |
83 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
84 | [snd_soc_dapm_mixer] = 5, |
85 | [snd_soc_dapm_dac] = 6, | |
86 | [snd_soc_dapm_mic] = 7, | |
87 | [snd_soc_dapm_micbias] = 8, | |
88 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 89 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 90 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
91 | [snd_soc_dapm_aif_in] = 10, |
92 | [snd_soc_dapm_aif_out] = 10, | |
93 | [snd_soc_dapm_supply] = 11, | |
94 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
95 | }; |
96 | ||
12ef193d | 97 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
98 | { |
99 | if (pop_time) | |
100 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
101 | } | |
102 | ||
fd8d3bc0 | 103 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
104 | { |
105 | va_list args; | |
fd8d3bc0 | 106 | char *buf; |
15e4c72f | 107 | |
fd8d3bc0 JN |
108 | if (!pop_time) |
109 | return; | |
15e4c72f | 110 | |
fd8d3bc0 JN |
111 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
112 | if (buf == NULL) | |
113 | return; | |
15e4c72f | 114 | |
fd8d3bc0 JN |
115 | va_start(args, fmt); |
116 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 117 | dev_info(dev, "%s", buf); |
15e4c72f | 118 | va_end(args); |
fd8d3bc0 JN |
119 | |
120 | kfree(buf); | |
15e4c72f MB |
121 | } |
122 | ||
db432b41 MB |
123 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
124 | { | |
125 | return !list_empty(&w->dirty); | |
126 | } | |
127 | ||
25c77c5f | 128 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 129 | { |
75c1f891 MB |
130 | if (!dapm_dirty_widget(w)) { |
131 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
132 | w->name, reason); | |
db432b41 | 133 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 134 | } |
db432b41 | 135 | } |
25c77c5f | 136 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 137 | |
2b97eabc | 138 | /* create a new dapm widget */ |
88cb4290 | 139 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
140 | const struct snd_soc_dapm_widget *_widget) |
141 | { | |
88cb4290 | 142 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
143 | } |
144 | ||
4805608a LG |
145 | /* get snd_card from DAPM context */ |
146 | static inline struct snd_card *dapm_get_snd_card( | |
147 | struct snd_soc_dapm_context *dapm) | |
148 | { | |
149 | if (dapm->codec) | |
150 | return dapm->codec->card->snd_card; | |
151 | else if (dapm->platform) | |
152 | return dapm->platform->card->snd_card; | |
153 | else | |
154 | BUG(); | |
155 | ||
156 | /* unreachable */ | |
157 | return NULL; | |
158 | } | |
159 | ||
160 | /* get soc_card from DAPM context */ | |
161 | static inline struct snd_soc_card *dapm_get_soc_card( | |
162 | struct snd_soc_dapm_context *dapm) | |
163 | { | |
164 | if (dapm->codec) | |
165 | return dapm->codec->card; | |
166 | else if (dapm->platform) | |
167 | return dapm->platform->card; | |
168 | else | |
169 | BUG(); | |
170 | ||
171 | /* unreachable */ | |
172 | return NULL; | |
173 | } | |
174 | ||
0445bdf4 LG |
175 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
176 | { | |
177 | if (w->codec) | |
178 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
179 | else if (w->platform) |
180 | return snd_soc_platform_read(w->platform, reg); | |
181 | ||
182 | dev_err(w->dapm->dev, "no valid widget read method\n"); | |
183 | return -1; | |
0445bdf4 LG |
184 | } |
185 | ||
186 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
187 | { | |
188 | if (w->codec) | |
189 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
190 | else if (w->platform) |
191 | return snd_soc_platform_write(w->platform, reg, val); | |
192 | ||
193 | dev_err(w->dapm->dev, "no valid widget write method\n"); | |
194 | return -1; | |
0445bdf4 LG |
195 | } |
196 | ||
197 | static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, | |
198 | unsigned short reg, unsigned int mask, unsigned int value) | |
199 | { | |
8a713da8 | 200 | bool change; |
0445bdf4 LG |
201 | unsigned int old, new; |
202 | int ret; | |
203 | ||
8a713da8 MB |
204 | if (w->codec && w->codec->using_regmap) { |
205 | ret = regmap_update_bits_check(w->codec->control_data, | |
206 | reg, mask, value, &change); | |
207 | if (ret != 0) | |
208 | return ret; | |
209 | } else { | |
210 | ret = soc_widget_read(w, reg); | |
0445bdf4 LG |
211 | if (ret < 0) |
212 | return ret; | |
8a713da8 MB |
213 | |
214 | old = ret; | |
215 | new = (old & ~mask) | (value & mask); | |
216 | change = old != new; | |
217 | if (change) { | |
218 | ret = soc_widget_write(w, reg, new); | |
219 | if (ret < 0) | |
220 | return ret; | |
221 | } | |
0445bdf4 LG |
222 | } |
223 | ||
224 | return change; | |
225 | } | |
226 | ||
452c5eaa MB |
227 | /** |
228 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 229 | * @dapm: DAPM context |
452c5eaa MB |
230 | * @level: level to configure |
231 | * | |
232 | * Configure the bias (power) levels for the SoC audio device. | |
233 | * | |
234 | * Returns 0 for success else error. | |
235 | */ | |
ed5a4c47 | 236 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 237 | enum snd_soc_bias_level level) |
452c5eaa | 238 | { |
ed5a4c47 | 239 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
240 | int ret = 0; |
241 | ||
84e90930 MB |
242 | trace_snd_soc_bias_level_start(card, level); |
243 | ||
f0fba2ad | 244 | if (card && card->set_bias_level) |
d4c6005f | 245 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
246 | if (ret != 0) |
247 | goto out; | |
248 | ||
cc4c670a MB |
249 | if (dapm->codec) { |
250 | if (dapm->codec->driver->set_bias_level) | |
251 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
252 | level); | |
253 | else | |
254 | dapm->bias_level = level; | |
255 | } | |
171ec6b0 MB |
256 | if (ret != 0) |
257 | goto out; | |
258 | ||
259 | if (card && card->set_bias_level_post) | |
d4c6005f | 260 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 261 | out: |
84e90930 MB |
262 | trace_snd_soc_bias_level_done(card, level); |
263 | ||
452c5eaa MB |
264 | return ret; |
265 | } | |
266 | ||
2b97eabc RP |
267 | /* set up initial codec paths */ |
268 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
269 | struct snd_soc_dapm_path *p, int i) | |
270 | { | |
271 | switch (w->id) { | |
272 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
273 | case snd_soc_dapm_mixer: |
274 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 275 | int val; |
4eaa9819 | 276 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 277 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
278 | unsigned int reg = mc->reg; |
279 | unsigned int shift = mc->shift; | |
4eaa9819 | 280 | int max = mc->max; |
815ecf8d JS |
281 | unsigned int mask = (1 << fls(max)) - 1; |
282 | unsigned int invert = mc->invert; | |
2b97eabc | 283 | |
0445bdf4 | 284 | val = soc_widget_read(w, reg); |
2b97eabc RP |
285 | val = (val >> shift) & mask; |
286 | ||
287 | if ((invert && !val) || (!invert && val)) | |
288 | p->connect = 1; | |
289 | else | |
290 | p->connect = 0; | |
291 | } | |
292 | break; | |
293 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
294 | struct soc_enum *e = (struct soc_enum *) |
295 | w->kcontrol_news[i].private_value; | |
2b97eabc RP |
296 | int val, item, bitmask; |
297 | ||
f8ba0b7b | 298 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
88d96086 | 299 | ; |
0445bdf4 | 300 | val = soc_widget_read(w, e->reg); |
2b97eabc RP |
301 | item = (val >> e->shift_l) & (bitmask - 1); |
302 | ||
303 | p->connect = 0; | |
f8ba0b7b | 304 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
305 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
306 | p->connect = 1; | |
307 | } | |
308 | } | |
309 | break; | |
24ff33ac | 310 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
311 | struct soc_enum *e = (struct soc_enum *) |
312 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
313 | |
314 | p->connect = 0; | |
315 | /* since a virtual mux has no backing registers to | |
316 | * decide which path to connect, it will try to match | |
317 | * with the first enumeration. This is to ensure | |
318 | * that the default mux choice (the first) will be | |
319 | * correctly powered up during initialization. | |
320 | */ | |
321 | if (!strcmp(p->name, e->texts[0])) | |
322 | p->connect = 1; | |
323 | } | |
324 | break; | |
2e72f8e3 | 325 | case snd_soc_dapm_value_mux: { |
74155556 | 326 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 327 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
328 | int val, item; |
329 | ||
0445bdf4 | 330 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
331 | val = (val >> e->shift_l) & e->mask; |
332 | for (item = 0; item < e->max; item++) { | |
333 | if (val == e->values[item]) | |
334 | break; | |
335 | } | |
336 | ||
337 | p->connect = 0; | |
338 | for (i = 0; i < e->max; i++) { | |
339 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
340 | p->connect = 1; | |
341 | } | |
342 | } | |
343 | break; | |
56563100 | 344 | /* does not affect routing - always connected */ |
2b97eabc | 345 | case snd_soc_dapm_pga: |
d88429a6 | 346 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
347 | case snd_soc_dapm_output: |
348 | case snd_soc_dapm_adc: | |
349 | case snd_soc_dapm_input: | |
1ab97c8c | 350 | case snd_soc_dapm_siggen: |
2b97eabc RP |
351 | case snd_soc_dapm_dac: |
352 | case snd_soc_dapm_micbias: | |
353 | case snd_soc_dapm_vmid: | |
246d0a17 | 354 | case snd_soc_dapm_supply: |
010ff262 MB |
355 | case snd_soc_dapm_aif_in: |
356 | case snd_soc_dapm_aif_out: | |
2b97eabc RP |
357 | case snd_soc_dapm_hp: |
358 | case snd_soc_dapm_mic: | |
359 | case snd_soc_dapm_spk: | |
360 | case snd_soc_dapm_line: | |
56563100 MB |
361 | p->connect = 1; |
362 | break; | |
363 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
364 | case snd_soc_dapm_pre: |
365 | case snd_soc_dapm_post: | |
366 | p->connect = 0; | |
367 | break; | |
368 | } | |
369 | } | |
370 | ||
74b8f955 | 371 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 372 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
373 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
374 | struct snd_soc_dapm_path *path, const char *control_name, | |
375 | const struct snd_kcontrol_new *kcontrol) | |
376 | { | |
377 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
378 | int i; | |
379 | ||
f8ba0b7b | 380 | for (i = 0; i < e->max; i++) { |
2b97eabc | 381 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 382 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
383 | list_add(&path->list_sink, &dest->sources); |
384 | list_add(&path->list_source, &src->sinks); | |
385 | path->name = (char*)e->texts[i]; | |
386 | dapm_set_path_status(dest, path, 0); | |
387 | return 0; | |
388 | } | |
389 | } | |
390 | ||
391 | return -ENODEV; | |
392 | } | |
393 | ||
74b8f955 | 394 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 395 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
396 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
397 | struct snd_soc_dapm_path *path, const char *control_name) | |
398 | { | |
399 | int i; | |
400 | ||
401 | /* search for mixer kcontrol */ | |
402 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 403 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 404 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
405 | list_add(&path->list_sink, &dest->sources); |
406 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 407 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
408 | dapm_set_path_status(dest, path, i); |
409 | return 0; | |
410 | } | |
411 | } | |
412 | return -ENODEV; | |
413 | } | |
414 | ||
af46800b | 415 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 416 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
417 | const struct snd_kcontrol_new *kcontrol_new, |
418 | struct snd_kcontrol **kcontrol) | |
419 | { | |
420 | struct snd_soc_dapm_widget *w; | |
421 | int i; | |
422 | ||
423 | *kcontrol = NULL; | |
424 | ||
425 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
426 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
427 | continue; | |
af46800b SW |
428 | for (i = 0; i < w->num_kcontrols; i++) { |
429 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
430 | if (w->kcontrols) | |
431 | *kcontrol = w->kcontrols[i]; | |
432 | return 1; | |
433 | } | |
434 | } | |
435 | } | |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
2b97eabc | 440 | /* create new dapm mixer control */ |
4b80b8c2 | 441 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
2b97eabc | 442 | { |
4b80b8c2 | 443 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc | 444 | int i, ret = 0; |
3e5ff4df | 445 | size_t name_len, prefix_len; |
2b97eabc | 446 | struct snd_soc_dapm_path *path; |
12ea2c78 | 447 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 448 | const char *prefix; |
fafd2176 SW |
449 | struct snd_soc_dapm_widget_list *wlist; |
450 | size_t wlistsize; | |
efb7ac3f MB |
451 | |
452 | if (dapm->codec) | |
453 | prefix = dapm->codec->name_prefix; | |
454 | else | |
455 | prefix = NULL; | |
2b97eabc | 456 | |
3e5ff4df MB |
457 | if (prefix) |
458 | prefix_len = strlen(prefix) + 1; | |
459 | else | |
460 | prefix_len = 0; | |
461 | ||
2b97eabc RP |
462 | /* add kcontrol */ |
463 | for (i = 0; i < w->num_kcontrols; i++) { | |
464 | ||
465 | /* match name */ | |
466 | list_for_each_entry(path, &w->sources, list_sink) { | |
467 | ||
468 | /* mixer/mux paths name must match control name */ | |
82cfecdc | 469 | if (path->name != (char *)w->kcontrol_news[i].name) |
2b97eabc RP |
470 | continue; |
471 | ||
82cd8764 LPC |
472 | if (w->kcontrols[i]) { |
473 | path->kcontrol = w->kcontrols[i]; | |
474 | continue; | |
475 | } | |
476 | ||
fafd2176 SW |
477 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
478 | sizeof(struct snd_soc_dapm_widget *), | |
479 | wlist = kzalloc(wlistsize, GFP_KERNEL); | |
480 | if (wlist == NULL) { | |
481 | dev_err(dapm->dev, | |
482 | "asoc: can't allocate widget list for %s\n", | |
483 | w->name); | |
484 | return -ENOMEM; | |
485 | } | |
486 | wlist->num_widgets = 1; | |
487 | wlist->widgets[0] = w; | |
488 | ||
ca9c1aae IM |
489 | /* add dapm control with long name. |
490 | * for dapm_mixer this is the concatenation of the | |
491 | * mixer and kcontrol name. | |
492 | * for dapm_mixer_named_ctl this is simply the | |
493 | * kcontrol name. | |
494 | */ | |
82cfecdc | 495 | name_len = strlen(w->kcontrol_news[i].name) + 1; |
07495f3e | 496 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
497 | name_len += 1 + strlen(w->name); |
498 | ||
219b93f5 | 499 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 500 | |
fafd2176 SW |
501 | if (path->long_name == NULL) { |
502 | kfree(wlist); | |
2b97eabc | 503 | return -ENOMEM; |
fafd2176 | 504 | } |
2b97eabc | 505 | |
ca9c1aae | 506 | switch (w->id) { |
ca9c1aae | 507 | default: |
3e5ff4df MB |
508 | /* The control will get a prefix from |
509 | * the control creation process but | |
510 | * we're also using the same prefix | |
511 | * for widgets so cut the prefix off | |
512 | * the front of the widget name. | |
513 | */ | |
ca9c1aae | 514 | snprintf(path->long_name, name_len, "%s %s", |
3e5ff4df | 515 | w->name + prefix_len, |
82cfecdc | 516 | w->kcontrol_news[i].name); |
07495f3e | 517 | break; |
ca9c1aae IM |
518 | case snd_soc_dapm_mixer_named_ctl: |
519 | snprintf(path->long_name, name_len, "%s", | |
82cfecdc | 520 | w->kcontrol_news[i].name); |
07495f3e | 521 | break; |
ca9c1aae IM |
522 | } |
523 | ||
219b93f5 MB |
524 | path->long_name[name_len - 1] = '\0'; |
525 | ||
fafd2176 SW |
526 | path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], |
527 | wlist, path->long_name, | |
528 | prefix); | |
ce6120cc | 529 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 530 | if (ret < 0) { |
f7d41ae8 JN |
531 | dev_err(dapm->dev, |
532 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
533 | path->long_name, ret); | |
fafd2176 | 534 | kfree(wlist); |
2b97eabc RP |
535 | kfree(path->long_name); |
536 | path->long_name = NULL; | |
537 | return ret; | |
538 | } | |
fad59888 | 539 | w->kcontrols[i] = path->kcontrol; |
2b97eabc RP |
540 | } |
541 | } | |
542 | return ret; | |
543 | } | |
544 | ||
545 | /* create new dapm mux control */ | |
4b80b8c2 | 546 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 547 | { |
4b80b8c2 | 548 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc RP |
549 | struct snd_soc_dapm_path *path = NULL; |
550 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 551 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 552 | const char *prefix; |
3e5ff4df | 553 | size_t prefix_len; |
af46800b | 554 | int ret; |
fafd2176 | 555 | struct snd_soc_dapm_widget_list *wlist; |
af46800b | 556 | int shared, wlistentries; |
fafd2176 | 557 | size_t wlistsize; |
af46800b | 558 | char *name; |
2b97eabc | 559 | |
af46800b SW |
560 | if (w->num_kcontrols != 1) { |
561 | dev_err(dapm->dev, | |
562 | "asoc: mux %s has incorrect number of controls\n", | |
563 | w->name); | |
2b97eabc RP |
564 | return -EINVAL; |
565 | } | |
566 | ||
1007da06 | 567 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b SW |
568 | &kcontrol); |
569 | if (kcontrol) { | |
570 | wlist = kcontrol->private_data; | |
571 | wlistentries = wlist->num_widgets + 1; | |
572 | } else { | |
573 | wlist = NULL; | |
574 | wlistentries = 1; | |
575 | } | |
fafd2176 | 576 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b SW |
577 | wlistentries * sizeof(struct snd_soc_dapm_widget *), |
578 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
fafd2176 SW |
579 | if (wlist == NULL) { |
580 | dev_err(dapm->dev, | |
581 | "asoc: can't allocate widget list for %s\n", w->name); | |
582 | return -ENOMEM; | |
583 | } | |
af46800b SW |
584 | wlist->num_widgets = wlistentries; |
585 | wlist->widgets[wlistentries - 1] = w; | |
efb7ac3f | 586 | |
af46800b SW |
587 | if (!kcontrol) { |
588 | if (dapm->codec) | |
589 | prefix = dapm->codec->name_prefix; | |
590 | else | |
591 | prefix = NULL; | |
592 | ||
593 | if (shared) { | |
594 | name = w->kcontrol_news[0].name; | |
595 | prefix_len = 0; | |
596 | } else { | |
597 | name = w->name; | |
598 | if (prefix) | |
599 | prefix_len = strlen(prefix) + 1; | |
600 | else | |
601 | prefix_len = 0; | |
602 | } | |
3e5ff4df | 603 | |
af46800b SW |
604 | /* |
605 | * The control will get a prefix from the control creation | |
606 | * process but we're also using the same prefix for widgets so | |
607 | * cut the prefix off the front of the widget name. | |
608 | */ | |
609 | kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, | |
610 | name + prefix_len, prefix); | |
611 | ret = snd_ctl_add(card, kcontrol); | |
612 | if (ret < 0) { | |
53daf208 MB |
613 | dev_err(dapm->dev, "failed to add kcontrol %s: %d\n", |
614 | w->name, ret); | |
af46800b SW |
615 | kfree(wlist); |
616 | return ret; | |
617 | } | |
618 | } | |
ce6120cc | 619 | |
af46800b | 620 | kcontrol->private_data = wlist; |
2b97eabc | 621 | |
fad59888 SW |
622 | w->kcontrols[0] = kcontrol; |
623 | ||
2b97eabc RP |
624 | list_for_each_entry(path, &w->sources, list_sink) |
625 | path->kcontrol = kcontrol; | |
626 | ||
af46800b | 627 | return 0; |
2b97eabc RP |
628 | } |
629 | ||
630 | /* create new dapm volume control */ | |
4b80b8c2 | 631 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 632 | { |
a6c65736 | 633 | if (w->num_kcontrols) |
f7d41ae8 JN |
634 | dev_err(w->dapm->dev, |
635 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 636 | |
a6c65736 | 637 | return 0; |
2b97eabc RP |
638 | } |
639 | ||
640 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 641 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
642 | { |
643 | struct snd_soc_dapm_path *p; | |
644 | ||
8ddab3f5 | 645 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
646 | p->walked = 0; |
647 | } | |
648 | ||
9949788b MB |
649 | /* We implement power down on suspend by checking the power state of |
650 | * the ALSA card - when we are suspending the ALSA state for the card | |
651 | * is set to D3. | |
652 | */ | |
653 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
654 | { | |
12ea2c78 | 655 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 656 | |
f0fba2ad | 657 | switch (level) { |
9949788b MB |
658 | case SNDRV_CTL_POWER_D3hot: |
659 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 660 | if (widget->ignore_suspend) |
f7d41ae8 JN |
661 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
662 | widget->name); | |
1547aba9 | 663 | return widget->ignore_suspend; |
9949788b MB |
664 | default: |
665 | return 1; | |
666 | } | |
667 | } | |
668 | ||
2b97eabc RP |
669 | /* |
670 | * Recursively check for a completed path to an active or physically connected | |
671 | * output widget. Returns number of complete paths. | |
672 | */ | |
673 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
674 | { | |
675 | struct snd_soc_dapm_path *path; | |
676 | int con = 0; | |
677 | ||
024dc078 MB |
678 | if (widget->outputs >= 0) |
679 | return widget->outputs; | |
680 | ||
de02d078 MB |
681 | DAPM_UPDATE_STAT(widget, path_checks); |
682 | ||
246d0a17 MB |
683 | if (widget->id == snd_soc_dapm_supply) |
684 | return 0; | |
685 | ||
010ff262 MB |
686 | switch (widget->id) { |
687 | case snd_soc_dapm_adc: | |
688 | case snd_soc_dapm_aif_out: | |
024dc078 MB |
689 | if (widget->active) { |
690 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
691 | return widget->outputs; | |
692 | } | |
010ff262 MB |
693 | default: |
694 | break; | |
695 | } | |
2b97eabc RP |
696 | |
697 | if (widget->connected) { | |
698 | /* connected pin ? */ | |
024dc078 MB |
699 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
700 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
701 | return widget->outputs; | |
702 | } | |
2b97eabc RP |
703 | |
704 | /* connected jack or spk ? */ | |
024dc078 MB |
705 | if (widget->id == snd_soc_dapm_hp || |
706 | widget->id == snd_soc_dapm_spk || | |
707 | (widget->id == snd_soc_dapm_line && | |
708 | !list_empty(&widget->sources))) { | |
709 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
710 | return widget->outputs; | |
711 | } | |
2b97eabc RP |
712 | } |
713 | ||
714 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
715 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
716 | ||
bf3a9e13 MB |
717 | if (path->weak) |
718 | continue; | |
719 | ||
2b97eabc RP |
720 | if (path->walked) |
721 | continue; | |
722 | ||
723 | if (path->sink && path->connect) { | |
724 | path->walked = 1; | |
725 | con += is_connected_output_ep(path->sink); | |
726 | } | |
727 | } | |
728 | ||
024dc078 MB |
729 | widget->outputs = con; |
730 | ||
2b97eabc RP |
731 | return con; |
732 | } | |
733 | ||
734 | /* | |
735 | * Recursively check for a completed path to an active or physically connected | |
736 | * input widget. Returns number of complete paths. | |
737 | */ | |
738 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
739 | { | |
740 | struct snd_soc_dapm_path *path; | |
741 | int con = 0; | |
742 | ||
024dc078 MB |
743 | if (widget->inputs >= 0) |
744 | return widget->inputs; | |
745 | ||
de02d078 MB |
746 | DAPM_UPDATE_STAT(widget, path_checks); |
747 | ||
246d0a17 MB |
748 | if (widget->id == snd_soc_dapm_supply) |
749 | return 0; | |
750 | ||
2b97eabc | 751 | /* active stream ? */ |
010ff262 MB |
752 | switch (widget->id) { |
753 | case snd_soc_dapm_dac: | |
754 | case snd_soc_dapm_aif_in: | |
024dc078 MB |
755 | if (widget->active) { |
756 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
757 | return widget->inputs; | |
758 | } | |
010ff262 MB |
759 | default: |
760 | break; | |
761 | } | |
2b97eabc RP |
762 | |
763 | if (widget->connected) { | |
764 | /* connected pin ? */ | |
024dc078 MB |
765 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
766 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
767 | return widget->inputs; | |
768 | } | |
2b97eabc RP |
769 | |
770 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
771 | if (widget->id == snd_soc_dapm_vmid) { |
772 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
773 | return widget->inputs; | |
774 | } | |
2b97eabc RP |
775 | |
776 | /* connected jack ? */ | |
eaeae5d9 | 777 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
778 | (widget->id == snd_soc_dapm_line && |
779 | !list_empty(&widget->sinks))) { | |
780 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
781 | return widget->inputs; | |
782 | } | |
783 | ||
1ab97c8c MB |
784 | /* signal generator */ |
785 | if (widget->id == snd_soc_dapm_siggen) { | |
786 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
787 | return widget->inputs; | |
788 | } | |
2b97eabc RP |
789 | } |
790 | ||
791 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
792 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
793 | ||
bf3a9e13 MB |
794 | if (path->weak) |
795 | continue; | |
796 | ||
2b97eabc RP |
797 | if (path->walked) |
798 | continue; | |
799 | ||
800 | if (path->source && path->connect) { | |
801 | path->walked = 1; | |
802 | con += is_connected_input_ep(path->source); | |
803 | } | |
804 | } | |
805 | ||
024dc078 MB |
806 | widget->inputs = con; |
807 | ||
2b97eabc RP |
808 | return con; |
809 | } | |
810 | ||
e2be2ccf JN |
811 | /* |
812 | * Handler for generic register modifier widget. | |
813 | */ | |
814 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
815 | struct snd_kcontrol *kcontrol, int event) | |
816 | { | |
817 | unsigned int val; | |
818 | ||
819 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
820 | val = w->on_val; | |
821 | else | |
822 | val = w->off_val; | |
823 | ||
0445bdf4 | 824 | soc_widget_update_bits(w, -(w->reg + 1), |
e2be2ccf JN |
825 | w->mask << w->shift, val << w->shift); |
826 | ||
827 | return 0; | |
828 | } | |
11589418 | 829 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 830 | |
d805002b MB |
831 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
832 | { | |
9b8a83b2 MB |
833 | if (w->power_checked) |
834 | return w->new_power; | |
835 | ||
d805002b | 836 | if (w->force) |
9b8a83b2 | 837 | w->new_power = 1; |
d805002b | 838 | else |
9b8a83b2 MB |
839 | w->new_power = w->power_check(w); |
840 | ||
841 | w->power_checked = true; | |
842 | ||
843 | return w->new_power; | |
d805002b MB |
844 | } |
845 | ||
cd0f2d47 MB |
846 | /* Generic check to see if a widget should be powered. |
847 | */ | |
848 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
849 | { | |
850 | int in, out; | |
851 | ||
de02d078 MB |
852 | DAPM_UPDATE_STAT(w, power_checks); |
853 | ||
cd0f2d47 | 854 | in = is_connected_input_ep(w); |
ce6120cc | 855 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 856 | out = is_connected_output_ep(w); |
ce6120cc | 857 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
858 | return out != 0 && in != 0; |
859 | } | |
860 | ||
6ea31b9f MB |
861 | /* Check to see if an ADC has power */ |
862 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
863 | { | |
864 | int in; | |
865 | ||
de02d078 MB |
866 | DAPM_UPDATE_STAT(w, power_checks); |
867 | ||
6ea31b9f MB |
868 | if (w->active) { |
869 | in = is_connected_input_ep(w); | |
ce6120cc | 870 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
871 | return in != 0; |
872 | } else { | |
873 | return dapm_generic_check_power(w); | |
874 | } | |
875 | } | |
876 | ||
877 | /* Check to see if a DAC has power */ | |
878 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
879 | { | |
880 | int out; | |
881 | ||
de02d078 MB |
882 | DAPM_UPDATE_STAT(w, power_checks); |
883 | ||
6ea31b9f MB |
884 | if (w->active) { |
885 | out = is_connected_output_ep(w); | |
ce6120cc | 886 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
887 | return out != 0; |
888 | } else { | |
889 | return dapm_generic_check_power(w); | |
890 | } | |
891 | } | |
892 | ||
246d0a17 MB |
893 | /* Check to see if a power supply is needed */ |
894 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
895 | { | |
896 | struct snd_soc_dapm_path *path; | |
246d0a17 | 897 | |
de02d078 MB |
898 | DAPM_UPDATE_STAT(w, power_checks); |
899 | ||
246d0a17 MB |
900 | /* Check if one of our outputs is connected */ |
901 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
902 | DAPM_UPDATE_STAT(w, neighbour_checks); |
903 | ||
bf3a9e13 MB |
904 | if (path->weak) |
905 | continue; | |
906 | ||
215edda3 MB |
907 | if (path->connected && |
908 | !path->connected(path->source, path->sink)) | |
909 | continue; | |
910 | ||
3017358a MB |
911 | if (!path->sink) |
912 | continue; | |
913 | ||
f68d7e16 MB |
914 | if (dapm_widget_power_check(path->sink)) |
915 | return 1; | |
246d0a17 MB |
916 | } |
917 | ||
ce6120cc | 918 | dapm_clear_walk(w->dapm); |
246d0a17 | 919 | |
f68d7e16 | 920 | return 0; |
246d0a17 MB |
921 | } |
922 | ||
35c64bca MB |
923 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
924 | { | |
925 | return 1; | |
926 | } | |
927 | ||
38357ab2 MB |
928 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
929 | struct snd_soc_dapm_widget *b, | |
828a842f | 930 | bool power_up) |
42aa3418 | 931 | { |
828a842f MB |
932 | int *sort; |
933 | ||
934 | if (power_up) | |
935 | sort = dapm_up_seq; | |
936 | else | |
937 | sort = dapm_down_seq; | |
938 | ||
38357ab2 MB |
939 | if (sort[a->id] != sort[b->id]) |
940 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
941 | if (a->subseq != b->subseq) { |
942 | if (power_up) | |
943 | return a->subseq - b->subseq; | |
944 | else | |
945 | return b->subseq - a->subseq; | |
946 | } | |
b22ead2a MB |
947 | if (a->reg != b->reg) |
948 | return a->reg - b->reg; | |
84dab567 MB |
949 | if (a->dapm != b->dapm) |
950 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 951 | |
38357ab2 MB |
952 | return 0; |
953 | } | |
42aa3418 | 954 | |
38357ab2 MB |
955 | /* Insert a widget in order into a DAPM power sequence. */ |
956 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
957 | struct list_head *list, | |
828a842f | 958 | bool power_up) |
38357ab2 MB |
959 | { |
960 | struct snd_soc_dapm_widget *w; | |
961 | ||
962 | list_for_each_entry(w, list, power_list) | |
828a842f | 963 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
964 | list_add_tail(&new_widget->power_list, &w->power_list); |
965 | return; | |
966 | } | |
967 | ||
968 | list_add_tail(&new_widget->power_list, list); | |
969 | } | |
970 | ||
68f89ad8 MB |
971 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
972 | struct snd_soc_dapm_widget *w, int event) | |
973 | { | |
974 | struct snd_soc_card *card = dapm->card; | |
975 | const char *ev_name; | |
976 | int power, ret; | |
977 | ||
978 | switch (event) { | |
979 | case SND_SOC_DAPM_PRE_PMU: | |
980 | ev_name = "PRE_PMU"; | |
981 | power = 1; | |
982 | break; | |
983 | case SND_SOC_DAPM_POST_PMU: | |
984 | ev_name = "POST_PMU"; | |
985 | power = 1; | |
986 | break; | |
987 | case SND_SOC_DAPM_PRE_PMD: | |
988 | ev_name = "PRE_PMD"; | |
989 | power = 0; | |
990 | break; | |
991 | case SND_SOC_DAPM_POST_PMD: | |
992 | ev_name = "POST_PMD"; | |
993 | power = 0; | |
994 | break; | |
995 | default: | |
996 | BUG(); | |
997 | return; | |
998 | } | |
999 | ||
1000 | if (w->power != power) | |
1001 | return; | |
1002 | ||
1003 | if (w->event && (w->event_flags & event)) { | |
1004 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1005 | w->name, ev_name); | |
84e90930 | 1006 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1007 | ret = w->event(w, NULL, event); |
84e90930 | 1008 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
1009 | if (ret < 0) |
1010 | pr_err("%s: %s event failed: %d\n", | |
1011 | ev_name, w->name, ret); | |
1012 | } | |
1013 | } | |
1014 | ||
b22ead2a | 1015 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1016 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1017 | struct list_head *pending) |
163cac06 | 1018 | { |
3a45b867 | 1019 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1020 | struct snd_soc_dapm_widget *w; |
1021 | int reg, power; | |
b22ead2a MB |
1022 | unsigned int value = 0; |
1023 | unsigned int mask = 0; | |
1024 | unsigned int cur_mask; | |
1025 | ||
1026 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1027 | power_list)->reg; | |
1028 | ||
1029 | list_for_each_entry(w, pending, power_list) { | |
1030 | cur_mask = 1 << w->shift; | |
1031 | BUG_ON(reg != w->reg); | |
1032 | ||
1033 | if (w->invert) | |
1034 | power = !w->power; | |
1035 | else | |
1036 | power = w->power; | |
1037 | ||
1038 | mask |= cur_mask; | |
1039 | if (power) | |
1040 | value |= cur_mask; | |
1041 | ||
fd8d3bc0 | 1042 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1043 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1044 | w->name, reg, value, mask); | |
81628103 | 1045 | |
68f89ad8 MB |
1046 | /* Check for events */ |
1047 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1048 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1049 | } |
1050 | ||
1051 | if (reg >= 0) { | |
29376bc7 MB |
1052 | /* Any widget will do, they should all be updating the |
1053 | * same register. | |
1054 | */ | |
1055 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1056 | power_list); | |
1057 | ||
fd8d3bc0 | 1058 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1059 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1060 | value, mask, reg, card->pop_time); |
1061 | pop_wait(card->pop_time); | |
0445bdf4 | 1062 | soc_widget_update_bits(w, reg, mask, value); |
b22ead2a MB |
1063 | } |
1064 | ||
81628103 | 1065 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1066 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1067 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1068 | } |
b22ead2a | 1069 | } |
42aa3418 | 1070 | |
b22ead2a MB |
1071 | /* Apply a DAPM power sequence. |
1072 | * | |
1073 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1074 | * order to minimise the number of writes to the device required | |
1075 | * multiple widgets will be updated in a single write where possible. | |
1076 | * Currently anything that requires more than a single write is not | |
1077 | * handled. | |
1078 | */ | |
ce6120cc | 1079 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1080 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1081 | { |
1082 | struct snd_soc_dapm_widget *w, *n; | |
1083 | LIST_HEAD(pending); | |
1084 | int cur_sort = -1; | |
20e4859d | 1085 | int cur_subseq = -1; |
b22ead2a | 1086 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1087 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1088 | int ret, i; |
828a842f MB |
1089 | int *sort; |
1090 | ||
1091 | if (power_up) | |
1092 | sort = dapm_up_seq; | |
1093 | else | |
1094 | sort = dapm_down_seq; | |
163cac06 | 1095 | |
b22ead2a MB |
1096 | list_for_each_entry_safe(w, n, list, power_list) { |
1097 | ret = 0; | |
1098 | ||
1099 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1100 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1101 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1102 | if (!list_empty(&pending)) |
7be31be8 | 1103 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1104 | |
474b62d6 MB |
1105 | if (cur_dapm && cur_dapm->seq_notifier) { |
1106 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1107 | if (sort[i] == cur_sort) | |
1108 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1109 | i, |
1110 | cur_subseq); | |
474b62d6 MB |
1111 | } |
1112 | ||
b22ead2a MB |
1113 | INIT_LIST_HEAD(&pending); |
1114 | cur_sort = -1; | |
b0b3e6f8 | 1115 | cur_subseq = INT_MIN; |
b22ead2a | 1116 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1117 | cur_dapm = NULL; |
b22ead2a MB |
1118 | } |
1119 | ||
163cac06 MB |
1120 | switch (w->id) { |
1121 | case snd_soc_dapm_pre: | |
1122 | if (!w->event) | |
b22ead2a MB |
1123 | list_for_each_entry_safe_continue(w, n, list, |
1124 | power_list); | |
163cac06 | 1125 | |
b22ead2a | 1126 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1127 | ret = w->event(w, |
1128 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1129 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1130 | ret = w->event(w, |
1131 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1132 | break; |
1133 | ||
1134 | case snd_soc_dapm_post: | |
1135 | if (!w->event) | |
b22ead2a MB |
1136 | list_for_each_entry_safe_continue(w, n, list, |
1137 | power_list); | |
163cac06 | 1138 | |
b22ead2a | 1139 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1140 | ret = w->event(w, |
1141 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1142 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1143 | ret = w->event(w, |
1144 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1145 | break; |
1146 | ||
b22ead2a | 1147 | default: |
81628103 MB |
1148 | /* Queue it up for application */ |
1149 | cur_sort = sort[w->id]; | |
20e4859d | 1150 | cur_subseq = w->subseq; |
81628103 | 1151 | cur_reg = w->reg; |
7be31be8 | 1152 | cur_dapm = w->dapm; |
81628103 MB |
1153 | list_move(&w->power_list, &pending); |
1154 | break; | |
163cac06 | 1155 | } |
b22ead2a MB |
1156 | |
1157 | if (ret < 0) | |
f7d41ae8 JN |
1158 | dev_err(w->dapm->dev, |
1159 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1160 | } |
b22ead2a MB |
1161 | |
1162 | if (!list_empty(&pending)) | |
28e86808 | 1163 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1164 | |
1165 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1166 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1167 | if (sort[i] == cur_sort) | |
1168 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1169 | i, cur_subseq); |
474b62d6 | 1170 | } |
42aa3418 MB |
1171 | } |
1172 | ||
97404f2e MB |
1173 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1174 | { | |
1175 | struct snd_soc_dapm_update *update = dapm->update; | |
1176 | struct snd_soc_dapm_widget *w; | |
1177 | int ret; | |
1178 | ||
1179 | if (!update) | |
1180 | return; | |
1181 | ||
1182 | w = update->widget; | |
1183 | ||
1184 | if (w->event && | |
1185 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1186 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1187 | if (ret != 0) | |
1188 | pr_err("%s DAPM pre-event failed: %d\n", | |
1189 | w->name, ret); | |
1190 | } | |
1191 | ||
1192 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, | |
1193 | update->val); | |
1194 | if (ret < 0) | |
1195 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1196 | ||
1197 | if (w->event && | |
1198 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1199 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1200 | if (ret != 0) | |
1201 | pr_err("%s DAPM post-event failed: %d\n", | |
1202 | w->name, ret); | |
1203 | } | |
1204 | } | |
1205 | ||
9d0624a7 MB |
1206 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1207 | * they're changing state. | |
1208 | */ | |
1209 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1210 | { | |
1211 | struct snd_soc_dapm_context *d = data; | |
1212 | int ret; | |
1213 | ||
56fba41f MB |
1214 | /* If we're off and we're not supposed to be go into STANDBY */ |
1215 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1216 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1217 | if (d->dev) |
1218 | pm_runtime_get_sync(d->dev); | |
1219 | ||
9d0624a7 MB |
1220 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1221 | if (ret != 0) | |
1222 | dev_err(d->dev, | |
1223 | "Failed to turn on bias: %d\n", ret); | |
1224 | } | |
1225 | ||
56fba41f MB |
1226 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1227 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1228 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1229 | if (ret != 0) | |
1230 | dev_err(d->dev, | |
1231 | "Failed to prepare bias: %d\n", ret); | |
1232 | } | |
1233 | } | |
1234 | ||
1235 | /* Async callback run prior to DAPM sequences - brings to their final | |
1236 | * state. | |
1237 | */ | |
1238 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1239 | { | |
1240 | struct snd_soc_dapm_context *d = data; | |
1241 | int ret; | |
1242 | ||
1243 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1244 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1245 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1246 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1247 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1248 | if (ret != 0) | |
1249 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1250 | ret); | |
1251 | } | |
97404f2e | 1252 | |
9d0624a7 | 1253 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1254 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1255 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1256 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1257 | if (ret != 0) | |
1258 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
f1aac484 MB |
1259 | |
1260 | if (d->dev) | |
1261 | pm_runtime_put_sync(d->dev); | |
9d0624a7 MB |
1262 | } |
1263 | ||
1264 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1265 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1266 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1267 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1268 | if (ret != 0) | |
1269 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1270 | ret); | |
1271 | } | |
1272 | } | |
97404f2e | 1273 | |
fe4fda5d MB |
1274 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1275 | bool power, bool connect) | |
1276 | { | |
1277 | /* If a connection is being made or broken then that update | |
1278 | * will have marked the peer dirty, otherwise the widgets are | |
1279 | * not connected and this update has no impact. */ | |
1280 | if (!connect) | |
1281 | return; | |
1282 | ||
1283 | /* If the peer is already in the state we're moving to then we | |
1284 | * won't have an impact on it. */ | |
1285 | if (power != peer->power) | |
75c1f891 | 1286 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1287 | } |
1288 | ||
05623c43 MB |
1289 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1290 | struct list_head *up_list, | |
1291 | struct list_head *down_list) | |
1292 | { | |
db432b41 MB |
1293 | struct snd_soc_dapm_path *path; |
1294 | ||
05623c43 MB |
1295 | if (w->power == power) |
1296 | return; | |
1297 | ||
1298 | trace_snd_soc_dapm_widget_power(w, power); | |
1299 | ||
db432b41 | 1300 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1301 | * also. |
db432b41 MB |
1302 | */ |
1303 | list_for_each_entry(path, &w->sources, list_sink) { | |
1304 | if (path->source) { | |
fe4fda5d MB |
1305 | dapm_widget_set_peer_power(path->source, power, |
1306 | path->connect); | |
db432b41 MB |
1307 | } |
1308 | } | |
f3bf3e45 MB |
1309 | switch (w->id) { |
1310 | case snd_soc_dapm_supply: | |
1311 | /* Supplies can't affect their outputs, only their inputs */ | |
1312 | break; | |
1313 | default: | |
1314 | list_for_each_entry(path, &w->sinks, list_source) { | |
1315 | if (path->sink) { | |
1316 | dapm_widget_set_peer_power(path->sink, power, | |
1317 | path->connect); | |
1318 | } | |
db432b41 | 1319 | } |
f3bf3e45 | 1320 | break; |
db432b41 MB |
1321 | } |
1322 | ||
05623c43 MB |
1323 | if (power) |
1324 | dapm_seq_insert(w, up_list, true); | |
1325 | else | |
1326 | dapm_seq_insert(w, down_list, false); | |
1327 | ||
1328 | w->power = power; | |
1329 | } | |
1330 | ||
7c81beb0 MB |
1331 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1332 | struct list_head *up_list, | |
1333 | struct list_head *down_list) | |
1334 | { | |
7c81beb0 MB |
1335 | int power; |
1336 | ||
1337 | switch (w->id) { | |
1338 | case snd_soc_dapm_pre: | |
1339 | dapm_seq_insert(w, down_list, false); | |
1340 | break; | |
1341 | case snd_soc_dapm_post: | |
1342 | dapm_seq_insert(w, up_list, true); | |
1343 | break; | |
1344 | ||
1345 | default: | |
d805002b | 1346 | power = dapm_widget_power_check(w); |
7c81beb0 | 1347 | |
05623c43 | 1348 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1349 | break; |
1350 | } | |
1351 | } | |
1352 | ||
2b97eabc RP |
1353 | /* |
1354 | * Scan each dapm widget for complete audio path. | |
1355 | * A complete path is a route that has valid endpoints i.e.:- | |
1356 | * | |
1357 | * o DAC to output pin. | |
1358 | * o Input Pin to ADC. | |
1359 | * o Input pin to Output pin (bypass, sidetone) | |
1360 | * o DAC to ADC (loopback). | |
1361 | */ | |
ce6120cc | 1362 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1363 | { |
12ea2c78 | 1364 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1365 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1366 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1367 | LIST_HEAD(up_list); |
1368 | LIST_HEAD(down_list); | |
9d0624a7 | 1369 | LIST_HEAD(async_domain); |
56fba41f | 1370 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1371 | |
84e90930 MB |
1372 | trace_snd_soc_dapm_start(card); |
1373 | ||
56fba41f MB |
1374 | list_for_each_entry(d, &card->dapm_list, list) { |
1375 | if (d->n_widgets || d->codec == NULL) { | |
1376 | if (d->idle_bias_off) | |
1377 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1378 | else | |
1379 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1380 | } | |
1381 | } | |
7be31be8 | 1382 | |
de02d078 MB |
1383 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
1384 | ||
9b8a83b2 MB |
1385 | list_for_each_entry(w, &card->widgets, list) { |
1386 | w->power_checked = false; | |
024dc078 MB |
1387 | w->inputs = -1; |
1388 | w->outputs = -1; | |
9b8a83b2 MB |
1389 | } |
1390 | ||
6d3ddc81 | 1391 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1392 | * lists indicating if they should be powered up or down. We |
1393 | * only check widgets that have been flagged as dirty but note | |
1394 | * that new widgets may be added to the dirty list while we | |
1395 | * iterate. | |
6d3ddc81 | 1396 | */ |
db432b41 | 1397 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1398 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1399 | } |
1400 | ||
f9de6d74 | 1401 | list_for_each_entry(w, &card->widgets, list) { |
db432b41 MB |
1402 | list_del_init(&w->dirty); |
1403 | ||
f9de6d74 MB |
1404 | if (w->power) { |
1405 | d = w->dapm; | |
1406 | ||
1407 | /* Supplies and micbiases only bring the | |
1408 | * context up to STANDBY as unless something | |
1409 | * else is active and passing audio they | |
1410 | * generally don't require full power. | |
1411 | */ | |
1412 | switch (w->id) { | |
1413 | case snd_soc_dapm_supply: | |
1414 | case snd_soc_dapm_micbias: | |
1415 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1416 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1417 | break; | |
1418 | default: | |
1419 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1420 | break; | |
1421 | } | |
1422 | } | |
1423 | ||
1424 | } | |
1425 | ||
b14b76a5 MB |
1426 | /* If there are no DAPM widgets then try to figure out power from the |
1427 | * event type. | |
1428 | */ | |
97c866de | 1429 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1430 | switch (event) { |
1431 | case SND_SOC_DAPM_STREAM_START: | |
1432 | case SND_SOC_DAPM_STREAM_RESUME: | |
56fba41f | 1433 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
b14b76a5 | 1434 | break; |
862af8ad | 1435 | case SND_SOC_DAPM_STREAM_STOP: |
e7c80e2a | 1436 | if (dapm->codec && dapm->codec->active) |
56fba41f MB |
1437 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
1438 | else | |
1439 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; | |
862af8ad | 1440 | break; |
50b6bce5 | 1441 | case SND_SOC_DAPM_STREAM_SUSPEND: |
56fba41f | 1442 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; |
50b6bce5 | 1443 | break; |
b14b76a5 | 1444 | case SND_SOC_DAPM_STREAM_NOP: |
56fba41f | 1445 | dapm->target_bias_level = dapm->bias_level; |
50b6bce5 | 1446 | break; |
b14b76a5 MB |
1447 | default: |
1448 | break; | |
1449 | } | |
1450 | } | |
1451 | ||
85a843c5 MB |
1452 | /* Force all contexts in the card to the same bias state if |
1453 | * they're not ground referenced. | |
1454 | */ | |
56fba41f | 1455 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1456 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1457 | if (d->target_bias_level > bias) |
1458 | bias = d->target_bias_level; | |
52ba67bf | 1459 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1460 | if (!d->idle_bias_off) |
1461 | d->target_bias_level = bias; | |
52ba67bf | 1462 | |
de02d078 | 1463 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1464 | |
9d0624a7 MB |
1465 | /* Run all the bias changes in parallel */ |
1466 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1467 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1468 | &async_domain); | |
1469 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1470 | |
6d3ddc81 | 1471 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1472 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1473 | |
97404f2e MB |
1474 | dapm_widget_update(dapm); |
1475 | ||
6d3ddc81 | 1476 | /* Now power up. */ |
828a842f | 1477 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1478 | |
9d0624a7 MB |
1479 | /* Run all the bias changes in parallel */ |
1480 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1481 | async_schedule_domain(dapm_post_sequence_async, d, | |
1482 | &async_domain); | |
1483 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1484 | |
fd8d3bc0 JN |
1485 | pop_dbg(dapm->dev, card->pop_time, |
1486 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1487 | pop_wait(card->pop_time); |
cb507e7e | 1488 | |
84e90930 MB |
1489 | trace_snd_soc_dapm_done(card); |
1490 | ||
42aa3418 | 1491 | return 0; |
2b97eabc RP |
1492 | } |
1493 | ||
79fb9387 MB |
1494 | #ifdef CONFIG_DEBUG_FS |
1495 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1496 | { | |
1497 | file->private_data = inode->i_private; | |
1498 | return 0; | |
1499 | } | |
1500 | ||
1501 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1502 | char __user *user_buf, | |
1503 | size_t count, loff_t *ppos) | |
1504 | { | |
1505 | struct snd_soc_dapm_widget *w = file->private_data; | |
1506 | char *buf; | |
1507 | int in, out; | |
1508 | ssize_t ret; | |
1509 | struct snd_soc_dapm_path *p = NULL; | |
1510 | ||
1511 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1512 | if (!buf) | |
1513 | return -ENOMEM; | |
1514 | ||
1515 | in = is_connected_input_ep(w); | |
ce6120cc | 1516 | dapm_clear_walk(w->dapm); |
79fb9387 | 1517 | out = is_connected_output_ep(w); |
ce6120cc | 1518 | dapm_clear_walk(w->dapm); |
79fb9387 | 1519 | |
d033c36a | 1520 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1521 | w->name, w->power ? "On" : "Off", in, out); |
1522 | ||
d033c36a MB |
1523 | if (w->reg >= 0) |
1524 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1525 | " - R%d(0x%x) bit %d", | |
1526 | w->reg, w->reg, w->shift); | |
1527 | ||
1528 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1529 | ||
3eef08ba MB |
1530 | if (w->sname) |
1531 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1532 | w->sname, | |
1533 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1534 | |
1535 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1536 | if (p->connected && !p->connected(w, p->sink)) |
1537 | continue; | |
1538 | ||
79fb9387 MB |
1539 | if (p->connect) |
1540 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1541 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1542 | p->name ? p->name : "static", |
1543 | p->source->name); | |
1544 | } | |
1545 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1546 | if (p->connected && !p->connected(w, p->sink)) |
1547 | continue; | |
1548 | ||
79fb9387 MB |
1549 | if (p->connect) |
1550 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1551 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1552 | p->name ? p->name : "static", |
1553 | p->sink->name); | |
1554 | } | |
1555 | ||
1556 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1557 | ||
1558 | kfree(buf); | |
1559 | return ret; | |
1560 | } | |
1561 | ||
1562 | static const struct file_operations dapm_widget_power_fops = { | |
1563 | .open = dapm_widget_power_open_file, | |
1564 | .read = dapm_widget_power_read_file, | |
6038f373 | 1565 | .llseek = default_llseek, |
79fb9387 MB |
1566 | }; |
1567 | ||
ef49e4fa MB |
1568 | static int dapm_bias_open_file(struct inode *inode, struct file *file) |
1569 | { | |
1570 | file->private_data = inode->i_private; | |
1571 | return 0; | |
1572 | } | |
1573 | ||
1574 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, | |
1575 | size_t count, loff_t *ppos) | |
1576 | { | |
1577 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1578 | char *level; | |
1579 | ||
1580 | switch (dapm->bias_level) { | |
1581 | case SND_SOC_BIAS_ON: | |
1582 | level = "On\n"; | |
1583 | break; | |
1584 | case SND_SOC_BIAS_PREPARE: | |
1585 | level = "Prepare\n"; | |
1586 | break; | |
1587 | case SND_SOC_BIAS_STANDBY: | |
1588 | level = "Standby\n"; | |
1589 | break; | |
1590 | case SND_SOC_BIAS_OFF: | |
1591 | level = "Off\n"; | |
1592 | break; | |
1593 | default: | |
1594 | BUG(); | |
1595 | level = "Unknown\n"; | |
1596 | break; | |
1597 | } | |
1598 | ||
1599 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1600 | strlen(level)); | |
1601 | } | |
1602 | ||
1603 | static const struct file_operations dapm_bias_fops = { | |
1604 | .open = dapm_bias_open_file, | |
1605 | .read = dapm_bias_read_file, | |
1606 | .llseek = default_llseek, | |
1607 | }; | |
1608 | ||
8eecaf62 LPC |
1609 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1610 | struct dentry *parent) | |
79fb9387 | 1611 | { |
79fb9387 MB |
1612 | struct dentry *d; |
1613 | ||
8eecaf62 LPC |
1614 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1615 | ||
1616 | if (!dapm->debugfs_dapm) { | |
1617 | printk(KERN_WARNING | |
1618 | "Failed to create DAPM debugfs directory\n"); | |
79fb9387 | 1619 | return; |
8eecaf62 | 1620 | } |
79fb9387 | 1621 | |
ef49e4fa MB |
1622 | d = debugfs_create_file("bias_level", 0444, |
1623 | dapm->debugfs_dapm, dapm, | |
1624 | &dapm_bias_fops); | |
1625 | if (!d) | |
1626 | dev_warn(dapm->dev, | |
1627 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1628 | } |
ef49e4fa | 1629 | |
d5d1e0be LPC |
1630 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1631 | { | |
1632 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1633 | struct dentry *d; | |
79fb9387 | 1634 | |
d5d1e0be LPC |
1635 | if (!dapm->debugfs_dapm || !w->name) |
1636 | return; | |
1637 | ||
1638 | d = debugfs_create_file(w->name, 0444, | |
1639 | dapm->debugfs_dapm, w, | |
1640 | &dapm_widget_power_fops); | |
1641 | if (!d) | |
1642 | dev_warn(w->dapm->dev, | |
1643 | "ASoC: Failed to create %s debugfs file\n", | |
1644 | w->name); | |
79fb9387 | 1645 | } |
d5d1e0be | 1646 | |
6c45e126 LPC |
1647 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1648 | { | |
1649 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1650 | } | |
1651 | ||
79fb9387 | 1652 | #else |
8eecaf62 LPC |
1653 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1654 | struct dentry *parent) | |
79fb9387 MB |
1655 | { |
1656 | } | |
d5d1e0be LPC |
1657 | |
1658 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1659 | { | |
1660 | } | |
1661 | ||
6c45e126 LPC |
1662 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1663 | { | |
1664 | } | |
1665 | ||
79fb9387 MB |
1666 | #endif |
1667 | ||
2b97eabc | 1668 | /* test and update the power status of a mux widget */ |
d9c96cf3 | 1669 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d MB |
1670 | struct snd_kcontrol *kcontrol, int change, |
1671 | int mux, struct soc_enum *e) | |
2b97eabc RP |
1672 | { |
1673 | struct snd_soc_dapm_path *path; | |
1674 | int found = 0; | |
1675 | ||
eff317d0 | 1676 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1677 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1678 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1679 | return -ENODEV; |
1680 | ||
3a65577d | 1681 | if (!change) |
2b97eabc RP |
1682 | return 0; |
1683 | ||
1684 | /* find dapm widget path assoc with kcontrol */ | |
8ddab3f5 | 1685 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1686 | if (path->kcontrol != kcontrol) |
1687 | continue; | |
1688 | ||
cb01e2b9 | 1689 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1690 | continue; |
1691 | ||
1692 | found = 1; | |
1693 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1694 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1695 | path->connect = 1; /* new connection */ |
75c1f891 | 1696 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1697 | } else { |
1698 | if (path->connect) | |
75c1f891 MB |
1699 | dapm_mark_dirty(path->source, |
1700 | "mux disconnection"); | |
2b97eabc | 1701 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1702 | } |
2b97eabc RP |
1703 | } |
1704 | ||
db432b41 | 1705 | if (found) { |
75c1f891 | 1706 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1707 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1708 | } |
2b97eabc RP |
1709 | |
1710 | return 0; | |
1711 | } | |
2b97eabc | 1712 | |
1b075e3f | 1713 | /* test and update the power status of a mixer or switch widget */ |
d9c96cf3 | 1714 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1715 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1716 | { |
1717 | struct snd_soc_dapm_path *path; | |
1718 | int found = 0; | |
1719 | ||
1b075e3f | 1720 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1721 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1722 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1723 | return -ENODEV; |
1724 | ||
2b97eabc | 1725 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1726 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1727 | if (path->kcontrol != kcontrol) |
1728 | continue; | |
1729 | ||
1730 | /* found, now check type */ | |
1731 | found = 1; | |
283375ce | 1732 | path->connect = connect; |
75c1f891 | 1733 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
1734 | } |
1735 | ||
db432b41 | 1736 | if (found) { |
75c1f891 | 1737 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 1738 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1739 | } |
2b97eabc RP |
1740 | |
1741 | return 0; | |
1742 | } | |
2b97eabc RP |
1743 | |
1744 | /* show dapm widget status in sys fs */ | |
1745 | static ssize_t dapm_widget_show(struct device *dev, | |
1746 | struct device_attribute *attr, char *buf) | |
1747 | { | |
36ae1a96 | 1748 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 1749 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
1750 | struct snd_soc_dapm_widget *w; |
1751 | int count = 0; | |
1752 | char *state = "not set"; | |
1753 | ||
97c866de JN |
1754 | list_for_each_entry(w, &codec->card->widgets, list) { |
1755 | if (w->dapm != &codec->dapm) | |
1756 | continue; | |
2b97eabc RP |
1757 | |
1758 | /* only display widgets that burnm power */ | |
1759 | switch (w->id) { | |
1760 | case snd_soc_dapm_hp: | |
1761 | case snd_soc_dapm_mic: | |
1762 | case snd_soc_dapm_spk: | |
1763 | case snd_soc_dapm_line: | |
1764 | case snd_soc_dapm_micbias: | |
1765 | case snd_soc_dapm_dac: | |
1766 | case snd_soc_dapm_adc: | |
1767 | case snd_soc_dapm_pga: | |
d88429a6 | 1768 | case snd_soc_dapm_out_drv: |
2b97eabc | 1769 | case snd_soc_dapm_mixer: |
ca9c1aae | 1770 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1771 | case snd_soc_dapm_supply: |
2b97eabc RP |
1772 | if (w->name) |
1773 | count += sprintf(buf + count, "%s: %s\n", | |
1774 | w->name, w->power ? "On":"Off"); | |
1775 | break; | |
1776 | default: | |
1777 | break; | |
1778 | } | |
1779 | } | |
1780 | ||
ce6120cc | 1781 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1782 | case SND_SOC_BIAS_ON: |
1783 | state = "On"; | |
2b97eabc | 1784 | break; |
0be9898a MB |
1785 | case SND_SOC_BIAS_PREPARE: |
1786 | state = "Prepare"; | |
2b97eabc | 1787 | break; |
0be9898a MB |
1788 | case SND_SOC_BIAS_STANDBY: |
1789 | state = "Standby"; | |
2b97eabc | 1790 | break; |
0be9898a MB |
1791 | case SND_SOC_BIAS_OFF: |
1792 | state = "Off"; | |
2b97eabc RP |
1793 | break; |
1794 | } | |
1795 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1796 | ||
1797 | return count; | |
1798 | } | |
1799 | ||
1800 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1801 | ||
1802 | int snd_soc_dapm_sys_add(struct device *dev) | |
1803 | { | |
12ef193d | 1804 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1805 | } |
1806 | ||
1807 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1808 | { | |
aef90843 | 1809 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1810 | } |
1811 | ||
1812 | /* free all dapm widgets and resources */ | |
ce6120cc | 1813 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1814 | { |
1815 | struct snd_soc_dapm_widget *w, *next_w; | |
1816 | struct snd_soc_dapm_path *p, *next_p; | |
1817 | ||
97c866de JN |
1818 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1819 | if (w->dapm != dapm) | |
1820 | continue; | |
2b97eabc | 1821 | list_del(&w->list); |
8ddab3f5 JN |
1822 | /* |
1823 | * remove source and sink paths associated to this widget. | |
1824 | * While removing the path, remove reference to it from both | |
1825 | * source and sink widgets so that path is removed only once. | |
1826 | */ | |
1827 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1828 | list_del(&p->list_sink); | |
1829 | list_del(&p->list_source); | |
1830 | list_del(&p->list); | |
1831 | kfree(p->long_name); | |
1832 | kfree(p); | |
1833 | } | |
1834 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1835 | list_del(&p->list_sink); | |
1836 | list_del(&p->list_source); | |
1837 | list_del(&p->list); | |
1838 | kfree(p->long_name); | |
1839 | kfree(p); | |
1840 | } | |
fad59888 | 1841 | kfree(w->kcontrols); |
ead9b919 | 1842 | kfree(w->name); |
2b97eabc RP |
1843 | kfree(w); |
1844 | } | |
2b97eabc RP |
1845 | } |
1846 | ||
91a5fca4 LPC |
1847 | static struct snd_soc_dapm_widget *dapm_find_widget( |
1848 | struct snd_soc_dapm_context *dapm, const char *pin, | |
1849 | bool search_other_contexts) | |
a5302181 LG |
1850 | { |
1851 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 1852 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 1853 | |
97c866de | 1854 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 1855 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
1856 | if (w->dapm == dapm) |
1857 | return w; | |
1858 | else | |
1859 | fallback = w; | |
a5302181 LG |
1860 | } |
1861 | } | |
1862 | ||
91a5fca4 LPC |
1863 | if (search_other_contexts) |
1864 | return fallback; | |
1865 | ||
1866 | return NULL; | |
1867 | } | |
1868 | ||
1869 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
1870 | const char *pin, int status) | |
1871 | { | |
1872 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
1873 | ||
1874 | if (!w) { | |
1875 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
1876 | return -EINVAL; | |
0d86733c MB |
1877 | } |
1878 | ||
91a5fca4 LPC |
1879 | w->connected = status; |
1880 | if (status == 0) | |
1881 | w->force = 0; | |
75c1f891 | 1882 | dapm_mark_dirty(w, "pin configuration"); |
91a5fca4 LPC |
1883 | |
1884 | return 0; | |
a5302181 LG |
1885 | } |
1886 | ||
2b97eabc | 1887 | /** |
a5302181 | 1888 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1889 | * @dapm: DAPM context |
2b97eabc RP |
1890 | * |
1891 | * Walks all dapm audio paths and powers widgets according to their | |
1892 | * stream or path usage. | |
1893 | * | |
1894 | * Returns 0 for success. | |
1895 | */ | |
ce6120cc | 1896 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1897 | { |
4f4c0072 MB |
1898 | /* |
1899 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
1900 | * silly DAPM runs during card startup. | |
1901 | */ | |
1902 | if (!dapm->card || !dapm->card->instantiated) | |
1903 | return 0; | |
1904 | ||
ce6120cc | 1905 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1906 | } |
a5302181 | 1907 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1908 | |
ce6120cc | 1909 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1910 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1911 | { |
1912 | struct snd_soc_dapm_path *path; | |
1913 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 1914 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 1915 | const char *sink; |
215edda3 | 1916 | const char *control = route->control; |
ead9b919 JN |
1917 | const char *source; |
1918 | char prefixed_sink[80]; | |
1919 | char prefixed_source[80]; | |
2b97eabc RP |
1920 | int ret = 0; |
1921 | ||
88e8b9a8 | 1922 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
1923 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
1924 | dapm->codec->name_prefix, route->sink); | |
1925 | sink = prefixed_sink; | |
1926 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1927 | dapm->codec->name_prefix, route->source); | |
1928 | source = prefixed_source; | |
1929 | } else { | |
1930 | sink = route->sink; | |
1931 | source = route->source; | |
1932 | } | |
1933 | ||
97c866de JN |
1934 | /* |
1935 | * find src and dest widgets over all widgets but favor a widget from | |
1936 | * current DAPM context | |
1937 | */ | |
1938 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 1939 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
1940 | wtsink = w; |
1941 | if (w->dapm == dapm) | |
1942 | wsink = w; | |
2b97eabc RP |
1943 | continue; |
1944 | } | |
1945 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
1946 | wtsource = w; |
1947 | if (w->dapm == dapm) | |
1948 | wsource = w; | |
2b97eabc RP |
1949 | } |
1950 | } | |
97c866de JN |
1951 | /* use widget from another DAPM context if not found from this */ |
1952 | if (!wsink) | |
1953 | wsink = wtsink; | |
1954 | if (!wsource) | |
1955 | wsource = wtsource; | |
2b97eabc RP |
1956 | |
1957 | if (wsource == NULL || wsink == NULL) | |
1958 | return -ENODEV; | |
1959 | ||
1960 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
1961 | if (!path) | |
1962 | return -ENOMEM; | |
1963 | ||
1964 | path->source = wsource; | |
1965 | path->sink = wsink; | |
215edda3 | 1966 | path->connected = route->connected; |
2b97eabc RP |
1967 | INIT_LIST_HEAD(&path->list); |
1968 | INIT_LIST_HEAD(&path->list_source); | |
1969 | INIT_LIST_HEAD(&path->list_sink); | |
1970 | ||
1971 | /* check for external widgets */ | |
1972 | if (wsink->id == snd_soc_dapm_input) { | |
1973 | if (wsource->id == snd_soc_dapm_micbias || | |
1974 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
1975 | wsource->id == snd_soc_dapm_line || |
1976 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
1977 | wsink->ext = 1; |
1978 | } | |
1979 | if (wsource->id == snd_soc_dapm_output) { | |
1980 | if (wsink->id == snd_soc_dapm_spk || | |
1981 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
1982 | wsink->id == snd_soc_dapm_line || |
1983 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
1984 | wsource->ext = 1; |
1985 | } | |
1986 | ||
1987 | /* connect static paths */ | |
1988 | if (control == NULL) { | |
8ddab3f5 | 1989 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
1990 | list_add(&path->list_sink, &wsink->sources); |
1991 | list_add(&path->list_source, &wsource->sinks); | |
1992 | path->connect = 1; | |
1993 | return 0; | |
1994 | } | |
1995 | ||
1996 | /* connect dynamic paths */ | |
dc2bea61 | 1997 | switch (wsink->id) { |
2b97eabc RP |
1998 | case snd_soc_dapm_adc: |
1999 | case snd_soc_dapm_dac: | |
2000 | case snd_soc_dapm_pga: | |
d88429a6 | 2001 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2002 | case snd_soc_dapm_input: |
2003 | case snd_soc_dapm_output: | |
1ab97c8c | 2004 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2005 | case snd_soc_dapm_micbias: |
2006 | case snd_soc_dapm_vmid: | |
2007 | case snd_soc_dapm_pre: | |
2008 | case snd_soc_dapm_post: | |
246d0a17 | 2009 | case snd_soc_dapm_supply: |
010ff262 MB |
2010 | case snd_soc_dapm_aif_in: |
2011 | case snd_soc_dapm_aif_out: | |
8ddab3f5 | 2012 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2013 | list_add(&path->list_sink, &wsink->sources); |
2014 | list_add(&path->list_source, &wsource->sinks); | |
2015 | path->connect = 1; | |
2016 | return 0; | |
2017 | case snd_soc_dapm_mux: | |
24ff33ac | 2018 | case snd_soc_dapm_virt_mux: |
74155556 | 2019 | case snd_soc_dapm_value_mux: |
ce6120cc | 2020 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2021 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2022 | if (ret != 0) |
2023 | goto err; | |
2024 | break; | |
2025 | case snd_soc_dapm_switch: | |
2026 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2027 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2028 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2029 | if (ret != 0) |
2030 | goto err; | |
2031 | break; | |
2032 | case snd_soc_dapm_hp: | |
2033 | case snd_soc_dapm_mic: | |
2034 | case snd_soc_dapm_line: | |
2035 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2036 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2037 | list_add(&path->list_sink, &wsink->sources); |
2038 | list_add(&path->list_source, &wsource->sinks); | |
2039 | path->connect = 0; | |
2040 | return 0; | |
2041 | } | |
2042 | return 0; | |
2043 | ||
2044 | err: | |
f7d41ae8 JN |
2045 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
2046 | source, control, sink); | |
2b97eabc RP |
2047 | kfree(path); |
2048 | return ret; | |
2049 | } | |
105f1c28 | 2050 | |
105f1c28 MB |
2051 | /** |
2052 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2053 | * @dapm: DAPM context |
105f1c28 MB |
2054 | * @route: audio routes |
2055 | * @num: number of routes | |
2056 | * | |
2057 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2058 | * the widget receiving the audio signal, whilst the source is the sender | |
2059 | * of the audio signal. | |
2060 | * | |
2061 | * Returns 0 for success else error. On error all resources can be freed | |
2062 | * with a call to snd_soc_card_free(). | |
2063 | */ | |
ce6120cc | 2064 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2065 | const struct snd_soc_dapm_route *route, int num) |
2066 | { | |
2067 | int i, ret; | |
2068 | ||
2069 | for (i = 0; i < num; i++) { | |
ce6120cc | 2070 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 2071 | if (ret < 0) { |
f7d41ae8 JN |
2072 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
2073 | route->source, route->sink); | |
105f1c28 MB |
2074 | return ret; |
2075 | } | |
2076 | route++; | |
2077 | } | |
2078 | ||
2079 | return 0; | |
2080 | } | |
2081 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2082 | ||
bf3a9e13 MB |
2083 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2084 | const struct snd_soc_dapm_route *route) | |
2085 | { | |
2086 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2087 | route->source, | |
2088 | true); | |
2089 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2090 | route->sink, | |
2091 | true); | |
2092 | struct snd_soc_dapm_path *path; | |
2093 | int count = 0; | |
2094 | ||
2095 | if (!source) { | |
2096 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
2097 | route->source); | |
2098 | return -ENODEV; | |
2099 | } | |
2100 | ||
2101 | if (!sink) { | |
2102 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
2103 | route->sink); | |
2104 | return -ENODEV; | |
2105 | } | |
2106 | ||
2107 | if (route->control || route->connected) | |
2108 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
2109 | route->source, route->sink); | |
2110 | ||
2111 | list_for_each_entry(path, &source->sinks, list_source) { | |
2112 | if (path->sink == sink) { | |
2113 | path->weak = 1; | |
2114 | count++; | |
2115 | } | |
2116 | } | |
2117 | ||
2118 | if (count == 0) | |
2119 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
2120 | route->source, route->sink); | |
2121 | if (count > 1) | |
2122 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
2123 | count, route->source, route->sink); | |
2124 | ||
2125 | return 0; | |
2126 | } | |
2127 | ||
2128 | /** | |
2129 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2130 | * @dapm: DAPM context | |
2131 | * @route: audio routes | |
2132 | * @num: number of routes | |
2133 | * | |
2134 | * Mark existing routes matching those specified in the passed array | |
2135 | * as being weak, meaning that they are ignored for the purpose of | |
2136 | * power decisions. The main intended use case is for sidetone paths | |
2137 | * which couple audio between other independent paths if they are both | |
2138 | * active in order to make the combination work better at the user | |
2139 | * level but which aren't intended to be "used". | |
2140 | * | |
2141 | * Note that CODEC drivers should not use this as sidetone type paths | |
2142 | * can frequently also be used as bypass paths. | |
2143 | */ | |
2144 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2145 | const struct snd_soc_dapm_route *route, int num) | |
2146 | { | |
2147 | int i, err; | |
2148 | int ret = 0; | |
2149 | ||
2150 | for (i = 0; i < num; i++) { | |
2151 | err = snd_soc_dapm_weak_route(dapm, route); | |
2152 | if (err) | |
2153 | ret = err; | |
2154 | route++; | |
2155 | } | |
2156 | ||
2157 | return ret; | |
2158 | } | |
2159 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2160 | ||
2b97eabc RP |
2161 | /** |
2162 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2163 | * @dapm: DAPM context |
2b97eabc RP |
2164 | * |
2165 | * Checks the codec for any new dapm widgets and creates them if found. | |
2166 | * | |
2167 | * Returns 0 for success. | |
2168 | */ | |
ce6120cc | 2169 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2170 | { |
2171 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2172 | unsigned int val; |
2b97eabc | 2173 | |
97c866de | 2174 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2175 | { |
2176 | if (w->new) | |
2177 | continue; | |
2178 | ||
fad59888 SW |
2179 | if (w->num_kcontrols) { |
2180 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2181 | sizeof(struct snd_kcontrol *), | |
2182 | GFP_KERNEL); | |
2183 | if (!w->kcontrols) | |
2184 | return -ENOMEM; | |
2185 | } | |
2186 | ||
2b97eabc RP |
2187 | switch(w->id) { |
2188 | case snd_soc_dapm_switch: | |
2189 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2190 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2191 | dapm_new_mixer(w); |
2b97eabc RP |
2192 | break; |
2193 | case snd_soc_dapm_mux: | |
24ff33ac | 2194 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2195 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2196 | dapm_new_mux(w); |
2b97eabc | 2197 | break; |
2b97eabc | 2198 | case snd_soc_dapm_pga: |
d88429a6 | 2199 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2200 | dapm_new_pga(w); |
2b97eabc | 2201 | break; |
7ca3a18b | 2202 | default: |
2b97eabc RP |
2203 | break; |
2204 | } | |
b66a70d5 MB |
2205 | |
2206 | /* Read the initial power state from the device */ | |
2207 | if (w->reg >= 0) { | |
0445bdf4 | 2208 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2209 | val &= 1 << w->shift; |
2210 | if (w->invert) | |
2211 | val = !val; | |
2212 | ||
2213 | if (val) | |
2214 | w->power = 1; | |
2215 | } | |
2216 | ||
2b97eabc | 2217 | w->new = 1; |
d5d1e0be | 2218 | |
7508b12a | 2219 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2220 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2221 | } |
2222 | ||
ce6120cc | 2223 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
2224 | return 0; |
2225 | } | |
2226 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2227 | ||
2228 | /** | |
2229 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2230 | * @kcontrol: mixer control | |
ac11a2b3 | 2231 | * @ucontrol: control element information |
2b97eabc RP |
2232 | * |
2233 | * Callback to get the value of a dapm mixer control. | |
2234 | * | |
2235 | * Returns 0 for success. | |
2236 | */ | |
2237 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2238 | struct snd_ctl_elem_value *ucontrol) | |
2239 | { | |
fafd2176 SW |
2240 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2241 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2242 | struct soc_mixer_control *mc = |
2243 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2244 | unsigned int reg = mc->reg; |
2245 | unsigned int shift = mc->shift; | |
2246 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2247 | int max = mc->max; |
815ecf8d JS |
2248 | unsigned int invert = mc->invert; |
2249 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 2250 | |
2b97eabc RP |
2251 | ucontrol->value.integer.value[0] = |
2252 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
2253 | if (shift != rshift) | |
2254 | ucontrol->value.integer.value[1] = | |
2255 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
2256 | if (invert) { | |
2257 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2258 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2259 | if (shift != rshift) |
2260 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2261 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
2262 | } |
2263 | ||
2264 | return 0; | |
2265 | } | |
2266 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2267 | ||
2268 | /** | |
2269 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2270 | * @kcontrol: mixer control | |
ac11a2b3 | 2271 | * @ucontrol: control element information |
2b97eabc RP |
2272 | * |
2273 | * Callback to set the value of a dapm mixer control. | |
2274 | * | |
2275 | * Returns 0 for success. | |
2276 | */ | |
2277 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2278 | struct snd_ctl_elem_value *ucontrol) | |
2279 | { | |
fafd2176 SW |
2280 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2281 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2282 | struct snd_soc_codec *codec = widget->codec; | |
4eaa9819 JS |
2283 | struct soc_mixer_control *mc = |
2284 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2285 | unsigned int reg = mc->reg; |
2286 | unsigned int shift = mc->shift; | |
4eaa9819 | 2287 | int max = mc->max; |
815ecf8d JS |
2288 | unsigned int mask = (1 << fls(max)) - 1; |
2289 | unsigned int invert = mc->invert; | |
e9cf7049 | 2290 | unsigned int val; |
97404f2e MB |
2291 | int connect, change; |
2292 | struct snd_soc_dapm_update update; | |
fafd2176 | 2293 | int wi; |
2b97eabc RP |
2294 | |
2295 | val = (ucontrol->value.integer.value[0] & mask); | |
2296 | ||
2297 | if (invert) | |
a7a4ac86 | 2298 | val = max - val; |
e9cf7049 | 2299 | mask = mask << shift; |
2b97eabc | 2300 | val = val << shift; |
2b97eabc | 2301 | |
fafd2176 SW |
2302 | if (val) |
2303 | /* new connection */ | |
2304 | connect = invert ? 0 : 1; | |
2305 | else | |
2306 | /* old connection must be powered down */ | |
2307 | connect = invert ? 1 : 0; | |
2308 | ||
2309 | mutex_lock(&codec->mutex); | |
2b97eabc | 2310 | |
e9cf7049 | 2311 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2312 | if (change) { |
fafd2176 SW |
2313 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2314 | widget = wlist->widgets[wi]; | |
283375ce | 2315 | |
fafd2176 | 2316 | widget->value = val; |
97404f2e | 2317 | |
fafd2176 SW |
2318 | update.kcontrol = kcontrol; |
2319 | update.widget = widget; | |
2320 | update.reg = reg; | |
2321 | update.mask = mask; | |
2322 | update.val = val; | |
2323 | widget->dapm->update = &update; | |
97404f2e | 2324 | |
fafd2176 SW |
2325 | dapm_mixer_update_power(widget, kcontrol, connect); |
2326 | ||
2327 | widget->dapm->update = NULL; | |
2328 | } | |
283375ce MB |
2329 | } |
2330 | ||
fafd2176 | 2331 | mutex_unlock(&codec->mutex); |
97404f2e | 2332 | return 0; |
2b97eabc RP |
2333 | } |
2334 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2335 | ||
2336 | /** | |
2337 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2338 | * @kcontrol: mixer control | |
ac11a2b3 | 2339 | * @ucontrol: control element information |
2b97eabc RP |
2340 | * |
2341 | * Callback to get the value of a dapm enumerated double mixer control. | |
2342 | * | |
2343 | * Returns 0 for success. | |
2344 | */ | |
2345 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2346 | struct snd_ctl_elem_value *ucontrol) | |
2347 | { | |
fafd2176 SW |
2348 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2349 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2350 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2351 | unsigned int val, bitmask; |
2b97eabc | 2352 | |
f8ba0b7b | 2353 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
2354 | ; |
2355 | val = snd_soc_read(widget->codec, e->reg); | |
2356 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
2357 | if (e->shift_l != e->shift_r) | |
2358 | ucontrol->value.enumerated.item[1] = | |
2359 | (val >> e->shift_r) & (bitmask - 1); | |
2360 | ||
2361 | return 0; | |
2362 | } | |
2363 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2364 | ||
2365 | /** | |
2366 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2367 | * @kcontrol: mixer control | |
ac11a2b3 | 2368 | * @ucontrol: control element information |
2b97eabc RP |
2369 | * |
2370 | * Callback to set the value of a dapm enumerated double mixer control. | |
2371 | * | |
2372 | * Returns 0 for success. | |
2373 | */ | |
2374 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2375 | struct snd_ctl_elem_value *ucontrol) | |
2376 | { | |
fafd2176 SW |
2377 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2378 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2379 | struct snd_soc_codec *codec = widget->codec; | |
2b97eabc | 2380 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2381 | unsigned int val, mux, change; |
46f5822f | 2382 | unsigned int mask, bitmask; |
97404f2e | 2383 | struct snd_soc_dapm_update update; |
fafd2176 | 2384 | int wi; |
2b97eabc | 2385 | |
f8ba0b7b | 2386 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 2387 | ; |
f8ba0b7b | 2388 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2389 | return -EINVAL; |
2390 | mux = ucontrol->value.enumerated.item[0]; | |
2391 | val = mux << e->shift_l; | |
2392 | mask = (bitmask - 1) << e->shift_l; | |
2393 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2394 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2395 | return -EINVAL; |
2396 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2397 | mask |= (bitmask - 1) << e->shift_r; | |
2398 | } | |
2399 | ||
fafd2176 SW |
2400 | mutex_lock(&codec->mutex); |
2401 | ||
3a65577d | 2402 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2403 | if (change) { |
2404 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2405 | widget = wlist->widgets[wi]; | |
2406 | ||
2407 | widget->value = val; | |
1642e3d4 | 2408 | |
fafd2176 SW |
2409 | update.kcontrol = kcontrol; |
2410 | update.widget = widget; | |
2411 | update.reg = e->reg; | |
2412 | update.mask = mask; | |
2413 | update.val = val; | |
2414 | widget->dapm->update = &update; | |
1642e3d4 | 2415 | |
fafd2176 | 2416 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d4 | 2417 | |
fafd2176 SW |
2418 | widget->dapm->update = NULL; |
2419 | } | |
2420 | } | |
2b97eabc | 2421 | |
fafd2176 | 2422 | mutex_unlock(&codec->mutex); |
97404f2e | 2423 | return change; |
2b97eabc RP |
2424 | } |
2425 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2426 | ||
d2b247a8 MB |
2427 | /** |
2428 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2429 | * @kcontrol: mixer control | |
2430 | * @ucontrol: control element information | |
2431 | * | |
2432 | * Returns 0 for success. | |
2433 | */ | |
2434 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2435 | struct snd_ctl_elem_value *ucontrol) | |
2436 | { | |
fafd2176 SW |
2437 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2438 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2439 | |
2440 | ucontrol->value.enumerated.item[0] = widget->value; | |
2441 | ||
2442 | return 0; | |
2443 | } | |
2444 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2445 | ||
2446 | /** | |
2447 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2448 | * @kcontrol: mixer control | |
2449 | * @ucontrol: control element information | |
2450 | * | |
2451 | * Returns 0 for success. | |
2452 | */ | |
2453 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2454 | struct snd_ctl_elem_value *ucontrol) | |
2455 | { | |
fafd2176 SW |
2456 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2457 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2458 | struct snd_soc_codec *codec = widget->codec; | |
d2b247a8 MB |
2459 | struct soc_enum *e = |
2460 | (struct soc_enum *)kcontrol->private_value; | |
2461 | int change; | |
2462 | int ret = 0; | |
fafd2176 | 2463 | int wi; |
d2b247a8 MB |
2464 | |
2465 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2466 | return -EINVAL; | |
2467 | ||
fafd2176 | 2468 | mutex_lock(&codec->mutex); |
d2b247a8 MB |
2469 | |
2470 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2471 | if (change) { |
2472 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2473 | widget = wlist->widgets[wi]; | |
2474 | ||
2475 | widget->value = ucontrol->value.enumerated.item[0]; | |
2476 | ||
2477 | dapm_mux_update_power(widget, kcontrol, change, | |
2478 | widget->value, e); | |
2479 | } | |
2480 | } | |
d2b247a8 | 2481 | |
fafd2176 | 2482 | mutex_unlock(&codec->mutex); |
d2b247a8 MB |
2483 | return ret; |
2484 | } | |
2485 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2486 | ||
2e72f8e3 PU |
2487 | /** |
2488 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2489 | * callback | |
2490 | * @kcontrol: mixer control | |
2491 | * @ucontrol: control element information | |
2492 | * | |
2493 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2494 | * | |
2495 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2496 | * used for handling bitfield coded enumeration for example. | |
2497 | * | |
2498 | * Returns 0 for success. | |
2499 | */ | |
2500 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2501 | struct snd_ctl_elem_value *ucontrol) | |
2502 | { | |
fafd2176 SW |
2503 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2504 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2505 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2506 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2507 | |
2508 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2509 | val = (reg_val >> e->shift_l) & e->mask; | |
2510 | for (mux = 0; mux < e->max; mux++) { | |
2511 | if (val == e->values[mux]) | |
2512 | break; | |
2513 | } | |
2514 | ucontrol->value.enumerated.item[0] = mux; | |
2515 | if (e->shift_l != e->shift_r) { | |
2516 | val = (reg_val >> e->shift_r) & e->mask; | |
2517 | for (mux = 0; mux < e->max; mux++) { | |
2518 | if (val == e->values[mux]) | |
2519 | break; | |
2520 | } | |
2521 | ucontrol->value.enumerated.item[1] = mux; | |
2522 | } | |
2523 | ||
2524 | return 0; | |
2525 | } | |
2526 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2527 | ||
2528 | /** | |
2529 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2530 | * callback | |
2531 | * @kcontrol: mixer control | |
2532 | * @ucontrol: control element information | |
2533 | * | |
2534 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2535 | * | |
2536 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2537 | * used for handling bitfield coded enumeration for example. | |
2538 | * | |
2539 | * Returns 0 for success. | |
2540 | */ | |
2541 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2542 | struct snd_ctl_elem_value *ucontrol) | |
2543 | { | |
fafd2176 SW |
2544 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2545 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2546 | struct snd_soc_codec *codec = widget->codec; | |
74155556 | 2547 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2548 | unsigned int val, mux, change; |
46f5822f | 2549 | unsigned int mask; |
97404f2e | 2550 | struct snd_soc_dapm_update update; |
fafd2176 | 2551 | int wi; |
2e72f8e3 PU |
2552 | |
2553 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2554 | return -EINVAL; | |
2555 | mux = ucontrol->value.enumerated.item[0]; | |
2556 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2557 | mask = e->mask << e->shift_l; | |
2558 | if (e->shift_l != e->shift_r) { | |
2559 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2560 | return -EINVAL; | |
2561 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2562 | mask |= e->mask << e->shift_r; | |
2563 | } | |
2564 | ||
fafd2176 SW |
2565 | mutex_lock(&codec->mutex); |
2566 | ||
3a65577d | 2567 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2568 | if (change) { |
2569 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2570 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2571 | |
fafd2176 | 2572 | widget->value = val; |
1642e3d4 | 2573 | |
fafd2176 SW |
2574 | update.kcontrol = kcontrol; |
2575 | update.widget = widget; | |
2576 | update.reg = e->reg; | |
2577 | update.mask = mask; | |
2578 | update.val = val; | |
2579 | widget->dapm->update = &update; | |
1642e3d4 | 2580 | |
fafd2176 SW |
2581 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
2582 | ||
2583 | widget->dapm->update = NULL; | |
2584 | } | |
2585 | } | |
2e72f8e3 | 2586 | |
fafd2176 | 2587 | mutex_unlock(&codec->mutex); |
97404f2e | 2588 | return change; |
2e72f8e3 PU |
2589 | } |
2590 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2591 | ||
8b37dbd2 MB |
2592 | /** |
2593 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2594 | * | |
2595 | * @kcontrol: mixer control | |
2596 | * @uinfo: control element information | |
2597 | * | |
2598 | * Callback to provide information about a pin switch control. | |
2599 | */ | |
2600 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2601 | struct snd_ctl_elem_info *uinfo) | |
2602 | { | |
2603 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2604 | uinfo->count = 1; | |
2605 | uinfo->value.integer.min = 0; | |
2606 | uinfo->value.integer.max = 1; | |
2607 | ||
2608 | return 0; | |
2609 | } | |
2610 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2611 | ||
2612 | /** | |
2613 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2614 | * | |
2615 | * @kcontrol: mixer control | |
2616 | * @ucontrol: Value | |
2617 | */ | |
2618 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2619 | struct snd_ctl_elem_value *ucontrol) | |
2620 | { | |
2621 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2622 | const char *pin = (const char *)kcontrol->private_value; | |
2623 | ||
2624 | mutex_lock(&codec->mutex); | |
2625 | ||
2626 | ucontrol->value.integer.value[0] = | |
ce6120cc | 2627 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2 MB |
2628 | |
2629 | mutex_unlock(&codec->mutex); | |
2630 | ||
2631 | return 0; | |
2632 | } | |
2633 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2634 | ||
2635 | /** | |
2636 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2637 | * | |
2638 | * @kcontrol: mixer control | |
2639 | * @ucontrol: Value | |
2640 | */ | |
2641 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2642 | struct snd_ctl_elem_value *ucontrol) | |
2643 | { | |
2644 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
2645 | const char *pin = (const char *)kcontrol->private_value; | |
2646 | ||
2647 | mutex_lock(&codec->mutex); | |
2648 | ||
2649 | if (ucontrol->value.integer.value[0]) | |
ce6120cc | 2650 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2 | 2651 | else |
ce6120cc | 2652 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2 | 2653 | |
ce6120cc | 2654 | snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2 MB |
2655 | |
2656 | mutex_unlock(&codec->mutex); | |
2657 | ||
2658 | return 0; | |
2659 | } | |
2660 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2661 | ||
2b97eabc RP |
2662 | /** |
2663 | * snd_soc_dapm_new_control - create new dapm control | |
ce6120cc | 2664 | * @dapm: DAPM context |
2b97eabc RP |
2665 | * @widget: widget template |
2666 | * | |
2667 | * Creates a new dapm control based upon the template. | |
2668 | * | |
2669 | * Returns 0 for success else error. | |
2670 | */ | |
ce6120cc | 2671 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
2672 | const struct snd_soc_dapm_widget *widget) |
2673 | { | |
2674 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2675 | size_t name_len; |
2b97eabc RP |
2676 | |
2677 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
2678 | return -ENOMEM; | |
2679 | ||
ead9b919 | 2680 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 2681 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2682 | name_len += 1 + strlen(dapm->codec->name_prefix); |
2683 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2684 | if (w->name == NULL) { | |
2685 | kfree(w); | |
2686 | return -ENOMEM; | |
2687 | } | |
88e8b9a8 | 2688 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2689 | snprintf(w->name, name_len, "%s %s", |
2690 | dapm->codec->name_prefix, widget->name); | |
2691 | else | |
2692 | snprintf(w->name, name_len, "%s", widget->name); | |
2693 | ||
7ca3a18b MB |
2694 | switch (w->id) { |
2695 | case snd_soc_dapm_switch: | |
2696 | case snd_soc_dapm_mixer: | |
2697 | case snd_soc_dapm_mixer_named_ctl: | |
2698 | w->power_check = dapm_generic_check_power; | |
2699 | break; | |
2700 | case snd_soc_dapm_mux: | |
2701 | case snd_soc_dapm_virt_mux: | |
2702 | case snd_soc_dapm_value_mux: | |
2703 | w->power_check = dapm_generic_check_power; | |
2704 | break; | |
2705 | case snd_soc_dapm_adc: | |
2706 | case snd_soc_dapm_aif_out: | |
2707 | w->power_check = dapm_adc_check_power; | |
2708 | break; | |
2709 | case snd_soc_dapm_dac: | |
2710 | case snd_soc_dapm_aif_in: | |
2711 | w->power_check = dapm_dac_check_power; | |
2712 | break; | |
2713 | case snd_soc_dapm_pga: | |
2714 | case snd_soc_dapm_out_drv: | |
2715 | case snd_soc_dapm_input: | |
2716 | case snd_soc_dapm_output: | |
2717 | case snd_soc_dapm_micbias: | |
2718 | case snd_soc_dapm_spk: | |
2719 | case snd_soc_dapm_hp: | |
2720 | case snd_soc_dapm_mic: | |
2721 | case snd_soc_dapm_line: | |
2722 | w->power_check = dapm_generic_check_power; | |
2723 | break; | |
2724 | case snd_soc_dapm_supply: | |
2725 | w->power_check = dapm_supply_check_power; | |
2726 | break; | |
2727 | default: | |
2728 | w->power_check = dapm_always_on_check_power; | |
2729 | break; | |
2730 | } | |
2731 | ||
97c866de | 2732 | dapm->n_widgets++; |
ce6120cc LG |
2733 | w->dapm = dapm; |
2734 | w->codec = dapm->codec; | |
b7950641 | 2735 | w->platform = dapm->platform; |
2b97eabc RP |
2736 | INIT_LIST_HEAD(&w->sources); |
2737 | INIT_LIST_HEAD(&w->sinks); | |
2738 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 2739 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 2740 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2741 | |
2742 | /* machine layer set ups unconnected pins and insertions */ | |
2743 | w->connected = 1; | |
2744 | return 0; | |
2745 | } | |
2746 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); | |
2747 | ||
4ba1327a MB |
2748 | /** |
2749 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2750 | * @dapm: DAPM context |
4ba1327a MB |
2751 | * @widget: widget array |
2752 | * @num: number of widgets | |
2753 | * | |
2754 | * Creates new DAPM controls based upon the templates. | |
2755 | * | |
2756 | * Returns 0 for success else error. | |
2757 | */ | |
ce6120cc | 2758 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2759 | const struct snd_soc_dapm_widget *widget, |
2760 | int num) | |
2761 | { | |
2762 | int i, ret; | |
2763 | ||
2764 | for (i = 0; i < num; i++) { | |
ce6120cc | 2765 | ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb5 | 2766 | if (ret < 0) { |
f7d41ae8 JN |
2767 | dev_err(dapm->dev, |
2768 | "ASoC: Failed to create DAPM control %s: %d\n", | |
2769 | widget->name, ret); | |
4ba1327a | 2770 | return ret; |
b8b33cb5 | 2771 | } |
4ba1327a MB |
2772 | widget++; |
2773 | } | |
2774 | return 0; | |
2775 | } | |
2776 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2777 | ||
ce6120cc | 2778 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad | 2779 | const char *stream, int event) |
2b97eabc RP |
2780 | { |
2781 | struct snd_soc_dapm_widget *w; | |
2782 | ||
97c866de | 2783 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc | 2784 | { |
97c866de | 2785 | if (!w->sname || w->dapm != dapm) |
2b97eabc | 2786 | continue; |
ee47b364 | 2787 | dev_vdbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
f7d41ae8 | 2788 | w->name, w->sname, stream, event); |
2b97eabc | 2789 | if (strstr(w->sname, stream)) { |
75c1f891 | 2790 | dapm_mark_dirty(w, "stream event"); |
2b97eabc RP |
2791 | switch(event) { |
2792 | case SND_SOC_DAPM_STREAM_START: | |
2793 | w->active = 1; | |
2794 | break; | |
2795 | case SND_SOC_DAPM_STREAM_STOP: | |
2796 | w->active = 0; | |
2797 | break; | |
2798 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2b97eabc | 2799 | case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc | 2800 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc RP |
2801 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
2802 | break; | |
2803 | } | |
2804 | } | |
2805 | } | |
2b97eabc | 2806 | |
ce6120cc | 2807 | dapm_power_widgets(dapm, event); |
64a648c2 LG |
2808 | |
2809 | /* do we need to notify any clients that DAPM stream is complete */ | |
2810 | if (dapm->stream_event) | |
2811 | dapm->stream_event(dapm, event); | |
ce6120cc LG |
2812 | } |
2813 | ||
2814 | /** | |
2815 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2816 | * @rtd: PCM runtime data | |
2817 | * @stream: stream name | |
2818 | * @event: stream event | |
2819 | * | |
2820 | * Sends a stream event to the dapm core. The core then makes any | |
2821 | * necessary widget power changes. | |
2822 | * | |
2823 | * Returns 0 for success else error. | |
2824 | */ | |
2825 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, | |
2826 | const char *stream, int event) | |
2827 | { | |
2828 | struct snd_soc_codec *codec = rtd->codec; | |
2829 | ||
2830 | if (stream == NULL) | |
2831 | return 0; | |
2832 | ||
2833 | mutex_lock(&codec->mutex); | |
2834 | soc_dapm_stream_event(&codec->dapm, stream, event); | |
8e8b2d67 | 2835 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2836 | return 0; |
2837 | } | |
2b97eabc RP |
2838 | |
2839 | /** | |
a5302181 | 2840 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 2841 | * @dapm: DAPM context |
a5302181 | 2842 | * @pin: pin name |
2b97eabc | 2843 | * |
74b8f955 | 2844 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
2845 | * a valid audio route and active audio stream. |
2846 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2847 | * do any widget power switching. | |
2b97eabc | 2848 | */ |
ce6120cc | 2849 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 2850 | { |
ce6120cc | 2851 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
2852 | } |
2853 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 2854 | |
da34183e MB |
2855 | /** |
2856 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 2857 | * @dapm: DAPM context |
da34183e MB |
2858 | * @pin: pin name |
2859 | * | |
2860 | * Enables input/output pin regardless of any other state. This is | |
2861 | * intended for use with microphone bias supplies used in microphone | |
2862 | * jack detection. | |
2863 | * | |
2864 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2865 | * do any widget power switching. | |
2866 | */ | |
ce6120cc LG |
2867 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
2868 | const char *pin) | |
da34183e | 2869 | { |
91a5fca4 | 2870 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 2871 | |
91a5fca4 LPC |
2872 | if (!w) { |
2873 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2874 | return -EINVAL; | |
0d86733c MB |
2875 | } |
2876 | ||
91a5fca4 LPC |
2877 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
2878 | w->connected = 1; | |
2879 | w->force = 1; | |
75c1f891 | 2880 | dapm_mark_dirty(w, "force enable"); |
da34183e | 2881 | |
91a5fca4 | 2882 | return 0; |
da34183e MB |
2883 | } |
2884 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
2885 | ||
a5302181 LG |
2886 | /** |
2887 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 2888 | * @dapm: DAPM context |
a5302181 LG |
2889 | * @pin: pin name |
2890 | * | |
74b8f955 | 2891 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
2892 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
2893 | * do any widget power switching. | |
2894 | */ | |
ce6120cc LG |
2895 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
2896 | const char *pin) | |
a5302181 | 2897 | { |
ce6120cc | 2898 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 2899 | } |
a5302181 | 2900 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 2901 | |
5817b52a MB |
2902 | /** |
2903 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 2904 | * @dapm: DAPM context |
5817b52a MB |
2905 | * @pin: pin name |
2906 | * | |
2907 | * Marks the specified pin as being not connected, disabling it along | |
2908 | * any parent or child widgets. At present this is identical to | |
2909 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
2910 | * additional things such as disabling controls which only affect | |
2911 | * paths through the pin. | |
2912 | * | |
2913 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
2914 | * do any widget power switching. | |
2915 | */ | |
ce6120cc | 2916 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 2917 | { |
ce6120cc | 2918 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
2919 | } |
2920 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
2921 | ||
eeec12bf | 2922 | /** |
a5302181 | 2923 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 2924 | * @dapm: DAPM context |
a5302181 | 2925 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 2926 | * |
a5302181 | 2927 | * Get audio pin status - connected or disconnected. |
eeec12bf | 2928 | * |
a5302181 | 2929 | * Returns 1 for connected otherwise 0. |
eeec12bf | 2930 | */ |
ce6120cc LG |
2931 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
2932 | const char *pin) | |
eeec12bf | 2933 | { |
91a5fca4 | 2934 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 2935 | |
91a5fca4 LPC |
2936 | if (w) |
2937 | return w->connected; | |
a68b38ad | 2938 | |
eeec12bf GG |
2939 | return 0; |
2940 | } | |
a5302181 | 2941 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 2942 | |
1547aba9 MB |
2943 | /** |
2944 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 2945 | * @dapm: DAPM context |
1547aba9 MB |
2946 | * @pin: audio signal pin endpoint (or start point) |
2947 | * | |
2948 | * Mark the given endpoint or pin as ignoring suspend. When the | |
2949 | * system is disabled a path between two endpoints flagged as ignoring | |
2950 | * suspend will not be disabled. The path must already be enabled via | |
2951 | * normal means at suspend time, it will not be turned on if it was not | |
2952 | * already enabled. | |
2953 | */ | |
ce6120cc LG |
2954 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
2955 | const char *pin) | |
1547aba9 | 2956 | { |
91a5fca4 | 2957 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 2958 | |
91a5fca4 LPC |
2959 | if (!w) { |
2960 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
2961 | return -EINVAL; | |
1547aba9 MB |
2962 | } |
2963 | ||
91a5fca4 LPC |
2964 | w->ignore_suspend = 1; |
2965 | ||
2966 | return 0; | |
1547aba9 MB |
2967 | } |
2968 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
2969 | ||
1633281b SW |
2970 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
2971 | struct snd_soc_dapm_widget *w) | |
2972 | { | |
2973 | struct snd_soc_dapm_path *p; | |
2974 | ||
2975 | list_for_each_entry(p, &card->paths, list) { | |
2976 | if ((p->source == w) || (p->sink == w)) { | |
2977 | dev_dbg(card->dev, | |
2978 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
2979 | p->source->name, p->source->id, p->source->dapm, | |
2980 | p->sink->name, p->sink->id, p->sink->dapm); | |
2981 | ||
2982 | /* Connected to something other than the codec */ | |
2983 | if (p->source->dapm != p->sink->dapm) | |
2984 | return true; | |
2985 | /* | |
2986 | * Loopback connection from codec external pin to | |
2987 | * codec external pin | |
2988 | */ | |
2989 | if (p->sink->id == snd_soc_dapm_input) { | |
2990 | switch (p->source->id) { | |
2991 | case snd_soc_dapm_output: | |
2992 | case snd_soc_dapm_micbias: | |
2993 | return true; | |
2994 | default: | |
2995 | break; | |
2996 | } | |
2997 | } | |
2998 | } | |
2999 | } | |
3000 | ||
3001 | return false; | |
3002 | } | |
3003 | ||
3004 | /** | |
3005 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3006 | * @codec: The codec whose pins should be processed | |
3007 | * | |
3008 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3009 | * which are unused. Pins are used if they are connected externally to the | |
3010 | * codec, whether that be to some other device, or a loop-back connection to | |
3011 | * the codec itself. | |
3012 | */ | |
3013 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3014 | { | |
3015 | struct snd_soc_card *card = codec->card; | |
3016 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3017 | struct snd_soc_dapm_widget *w; | |
3018 | ||
a094b80b | 3019 | dev_dbg(codec->dev, "Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3020 | &card->dapm, &codec->dapm); |
3021 | ||
3022 | list_for_each_entry(w, &card->widgets, list) { | |
3023 | if (w->dapm != dapm) | |
3024 | continue; | |
3025 | switch (w->id) { | |
3026 | case snd_soc_dapm_input: | |
3027 | case snd_soc_dapm_output: | |
3028 | case snd_soc_dapm_micbias: | |
a094b80b | 3029 | dev_dbg(codec->dev, "Auto NC: Checking widget %s\n", |
1633281b SW |
3030 | w->name); |
3031 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3032 | dev_dbg(codec->dev, |
1633281b SW |
3033 | "... Not in map; disabling\n"); |
3034 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3035 | } | |
3036 | break; | |
3037 | default: | |
3038 | break; | |
3039 | } | |
3040 | } | |
3041 | } | |
3042 | ||
2b97eabc RP |
3043 | /** |
3044 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3045 | * @dapm: DAPM context |
2b97eabc RP |
3046 | * |
3047 | * Free all dapm widgets and resources. | |
3048 | */ | |
ce6120cc | 3049 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3050 | { |
ce6120cc | 3051 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3052 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3053 | dapm_free_widgets(dapm); |
7be31be8 | 3054 | list_del(&dapm->list); |
2b97eabc RP |
3055 | } |
3056 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3057 | ||
ce6120cc | 3058 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3059 | { |
51737470 MB |
3060 | struct snd_soc_dapm_widget *w; |
3061 | LIST_HEAD(down_list); | |
3062 | int powerdown = 0; | |
3063 | ||
97c866de JN |
3064 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3065 | if (w->dapm != dapm) | |
3066 | continue; | |
51737470 | 3067 | if (w->power) { |
828a842f | 3068 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3069 | w->power = 0; |
51737470 MB |
3070 | powerdown = 1; |
3071 | } | |
3072 | } | |
3073 | ||
3074 | /* If there were no widgets to power down we're already in | |
3075 | * standby. | |
3076 | */ | |
3077 | if (powerdown) { | |
ed5a4c47 | 3078 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE); |
828a842f | 3079 | dapm_seq_run(dapm, &down_list, 0, false); |
ed5a4c47 | 3080 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY); |
51737470 | 3081 | } |
f0fba2ad LG |
3082 | } |
3083 | ||
3084 | /* | |
3085 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3086 | */ | |
3087 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3088 | { | |
3089 | struct snd_soc_codec *codec; | |
3090 | ||
ce6120cc LG |
3091 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
3092 | soc_dapm_shutdown_codec(&codec->dapm); | |
ed5a4c47 | 3093 | snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF); |
ce6120cc | 3094 | } |
51737470 MB |
3095 | } |
3096 | ||
2b97eabc | 3097 | /* Module information */ |
d331124d | 3098 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3099 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3100 | MODULE_LICENSE("GPL"); |