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Commit | Line | Data |
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2b97eabc RP |
1 | /* |
2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
d331124d | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
2b97eabc RP |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
2b97eabc RP |
12 | * Features: |
13 | * o Changes power status of internal codec blocks depending on the | |
14 | * dynamic configuration of codec internal audio paths and active | |
74b8f955 | 15 | * DACs/ADCs. |
2b97eabc | 16 | * o Platform power domain - can support external components i.e. amps and |
612a3fec | 17 | * mic/headphone insertion events. |
2b97eabc RP |
18 | * o Automatic Mic Bias support |
19 | * o Jack insertion power event initiation - e.g. hp insertion will enable | |
20 | * sinks, dacs, etc | |
612a3fec | 21 | * o Delayed power down of audio subsystem to reduce pops between a quick |
2b97eabc RP |
22 | * device reopen. |
23 | * | |
2b97eabc RP |
24 | */ |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/init.h> | |
9d0624a7 | 29 | #include <linux/async.h> |
2b97eabc RP |
30 | #include <linux/delay.h> |
31 | #include <linux/pm.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/platform_device.h> | |
34 | #include <linux/jiffies.h> | |
20496ff3 | 35 | #include <linux/debugfs.h> |
f1aac484 | 36 | #include <linux/pm_runtime.h> |
62ea874a | 37 | #include <linux/regulator/consumer.h> |
5a0e3ad6 | 38 | #include <linux/slab.h> |
2b97eabc RP |
39 | #include <sound/core.h> |
40 | #include <sound/pcm.h> | |
41 | #include <sound/pcm_params.h> | |
ce6120cc | 42 | #include <sound/soc.h> |
2b97eabc RP |
43 | #include <sound/initval.h> |
44 | ||
84e90930 MB |
45 | #include <trace/events/asoc.h> |
46 | ||
de02d078 MB |
47 | #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
48 | ||
2b97eabc RP |
49 | /* dapm power sequences - make this per codec in the future */ |
50 | static int dapm_up_seq[] = { | |
38357ab2 MB |
51 | [snd_soc_dapm_pre] = 0, |
52 | [snd_soc_dapm_supply] = 1, | |
62ea874a | 53 | [snd_soc_dapm_regulator_supply] = 1, |
38357ab2 | 54 | [snd_soc_dapm_micbias] = 2, |
888df395 | 55 | [snd_soc_dapm_dai] = 3, |
010ff262 MB |
56 | [snd_soc_dapm_aif_in] = 3, |
57 | [snd_soc_dapm_aif_out] = 3, | |
58 | [snd_soc_dapm_mic] = 4, | |
59 | [snd_soc_dapm_mux] = 5, | |
24ff33ac | 60 | [snd_soc_dapm_virt_mux] = 5, |
010ff262 MB |
61 | [snd_soc_dapm_value_mux] = 5, |
62 | [snd_soc_dapm_dac] = 6, | |
63 | [snd_soc_dapm_mixer] = 7, | |
64 | [snd_soc_dapm_mixer_named_ctl] = 7, | |
65 | [snd_soc_dapm_pga] = 8, | |
66 | [snd_soc_dapm_adc] = 9, | |
d88429a6 | 67 | [snd_soc_dapm_out_drv] = 10, |
010ff262 MB |
68 | [snd_soc_dapm_hp] = 10, |
69 | [snd_soc_dapm_spk] = 10, | |
70 | [snd_soc_dapm_post] = 11, | |
2b97eabc | 71 | }; |
ca9c1aae | 72 | |
2b97eabc | 73 | static int dapm_down_seq[] = { |
38357ab2 MB |
74 | [snd_soc_dapm_pre] = 0, |
75 | [snd_soc_dapm_adc] = 1, | |
76 | [snd_soc_dapm_hp] = 2, | |
1ca04065 | 77 | [snd_soc_dapm_spk] = 2, |
d88429a6 | 78 | [snd_soc_dapm_out_drv] = 2, |
38357ab2 MB |
79 | [snd_soc_dapm_pga] = 4, |
80 | [snd_soc_dapm_mixer_named_ctl] = 5, | |
e3d4dabd MB |
81 | [snd_soc_dapm_mixer] = 5, |
82 | [snd_soc_dapm_dac] = 6, | |
83 | [snd_soc_dapm_mic] = 7, | |
84 | [snd_soc_dapm_micbias] = 8, | |
85 | [snd_soc_dapm_mux] = 9, | |
24ff33ac | 86 | [snd_soc_dapm_virt_mux] = 9, |
e3d4dabd | 87 | [snd_soc_dapm_value_mux] = 9, |
010ff262 MB |
88 | [snd_soc_dapm_aif_in] = 10, |
89 | [snd_soc_dapm_aif_out] = 10, | |
888df395 | 90 | [snd_soc_dapm_dai] = 10, |
62ea874a | 91 | [snd_soc_dapm_regulator_supply] = 11, |
010ff262 MB |
92 | [snd_soc_dapm_supply] = 11, |
93 | [snd_soc_dapm_post] = 12, | |
2b97eabc RP |
94 | }; |
95 | ||
12ef193d | 96 | static void pop_wait(u32 pop_time) |
15e4c72f MB |
97 | { |
98 | if (pop_time) | |
99 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); | |
100 | } | |
101 | ||
fd8d3bc0 | 102 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
15e4c72f MB |
103 | { |
104 | va_list args; | |
fd8d3bc0 | 105 | char *buf; |
15e4c72f | 106 | |
fd8d3bc0 JN |
107 | if (!pop_time) |
108 | return; | |
15e4c72f | 109 | |
fd8d3bc0 JN |
110 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
111 | if (buf == NULL) | |
112 | return; | |
15e4c72f | 113 | |
fd8d3bc0 JN |
114 | va_start(args, fmt); |
115 | vsnprintf(buf, PAGE_SIZE, fmt, args); | |
9d01df06 | 116 | dev_info(dev, "%s", buf); |
15e4c72f | 117 | va_end(args); |
fd8d3bc0 JN |
118 | |
119 | kfree(buf); | |
15e4c72f MB |
120 | } |
121 | ||
db432b41 MB |
122 | static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) |
123 | { | |
124 | return !list_empty(&w->dirty); | |
125 | } | |
126 | ||
25c77c5f | 127 | void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
db432b41 | 128 | { |
75c1f891 MB |
129 | if (!dapm_dirty_widget(w)) { |
130 | dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", | |
131 | w->name, reason); | |
db432b41 | 132 | list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
75c1f891 | 133 | } |
db432b41 | 134 | } |
25c77c5f | 135 | EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
db432b41 | 136 | |
2b97eabc | 137 | /* create a new dapm widget */ |
88cb4290 | 138 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
2b97eabc RP |
139 | const struct snd_soc_dapm_widget *_widget) |
140 | { | |
88cb4290 | 141 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
2b97eabc RP |
142 | } |
143 | ||
4805608a LG |
144 | /* get snd_card from DAPM context */ |
145 | static inline struct snd_card *dapm_get_snd_card( | |
146 | struct snd_soc_dapm_context *dapm) | |
147 | { | |
148 | if (dapm->codec) | |
149 | return dapm->codec->card->snd_card; | |
150 | else if (dapm->platform) | |
151 | return dapm->platform->card->snd_card; | |
152 | else | |
153 | BUG(); | |
154 | ||
155 | /* unreachable */ | |
156 | return NULL; | |
157 | } | |
158 | ||
159 | /* get soc_card from DAPM context */ | |
160 | static inline struct snd_soc_card *dapm_get_soc_card( | |
161 | struct snd_soc_dapm_context *dapm) | |
162 | { | |
163 | if (dapm->codec) | |
164 | return dapm->codec->card; | |
165 | else if (dapm->platform) | |
166 | return dapm->platform->card; | |
167 | else | |
168 | BUG(); | |
169 | ||
170 | /* unreachable */ | |
171 | return NULL; | |
172 | } | |
173 | ||
6c120e19 LG |
174 | static void dapm_reset(struct snd_soc_card *card) |
175 | { | |
176 | struct snd_soc_dapm_widget *w; | |
177 | ||
178 | memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); | |
179 | ||
180 | list_for_each_entry(w, &card->widgets, list) { | |
181 | w->power_checked = false; | |
182 | w->inputs = -1; | |
183 | w->outputs = -1; | |
184 | } | |
185 | } | |
186 | ||
0445bdf4 LG |
187 | static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) |
188 | { | |
189 | if (w->codec) | |
190 | return snd_soc_read(w->codec, reg); | |
b7950641 LG |
191 | else if (w->platform) |
192 | return snd_soc_platform_read(w->platform, reg); | |
193 | ||
194 | dev_err(w->dapm->dev, "no valid widget read method\n"); | |
195 | return -1; | |
0445bdf4 LG |
196 | } |
197 | ||
198 | static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) | |
199 | { | |
200 | if (w->codec) | |
201 | return snd_soc_write(w->codec, reg, val); | |
b7950641 LG |
202 | else if (w->platform) |
203 | return snd_soc_platform_write(w->platform, reg, val); | |
204 | ||
205 | dev_err(w->dapm->dev, "no valid widget write method\n"); | |
206 | return -1; | |
0445bdf4 LG |
207 | } |
208 | ||
209 | static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, | |
210 | unsigned short reg, unsigned int mask, unsigned int value) | |
211 | { | |
8a713da8 | 212 | bool change; |
0445bdf4 LG |
213 | unsigned int old, new; |
214 | int ret; | |
215 | ||
8a713da8 MB |
216 | if (w->codec && w->codec->using_regmap) { |
217 | ret = regmap_update_bits_check(w->codec->control_data, | |
218 | reg, mask, value, &change); | |
219 | if (ret != 0) | |
220 | return ret; | |
221 | } else { | |
222 | ret = soc_widget_read(w, reg); | |
0445bdf4 LG |
223 | if (ret < 0) |
224 | return ret; | |
8a713da8 MB |
225 | |
226 | old = ret; | |
227 | new = (old & ~mask) | (value & mask); | |
228 | change = old != new; | |
229 | if (change) { | |
230 | ret = soc_widget_write(w, reg, new); | |
231 | if (ret < 0) | |
232 | return ret; | |
233 | } | |
0445bdf4 LG |
234 | } |
235 | ||
236 | return change; | |
237 | } | |
238 | ||
452c5eaa MB |
239 | /** |
240 | * snd_soc_dapm_set_bias_level - set the bias level for the system | |
ed5a4c47 | 241 | * @dapm: DAPM context |
452c5eaa MB |
242 | * @level: level to configure |
243 | * | |
244 | * Configure the bias (power) levels for the SoC audio device. | |
245 | * | |
246 | * Returns 0 for success else error. | |
247 | */ | |
ed5a4c47 | 248 | static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
ce6120cc | 249 | enum snd_soc_bias_level level) |
452c5eaa | 250 | { |
ed5a4c47 | 251 | struct snd_soc_card *card = dapm->card; |
452c5eaa MB |
252 | int ret = 0; |
253 | ||
84e90930 MB |
254 | trace_snd_soc_bias_level_start(card, level); |
255 | ||
f0fba2ad | 256 | if (card && card->set_bias_level) |
d4c6005f | 257 | ret = card->set_bias_level(card, dapm, level); |
171ec6b0 MB |
258 | if (ret != 0) |
259 | goto out; | |
260 | ||
cc4c670a MB |
261 | if (dapm->codec) { |
262 | if (dapm->codec->driver->set_bias_level) | |
263 | ret = dapm->codec->driver->set_bias_level(dapm->codec, | |
264 | level); | |
265 | else | |
266 | dapm->bias_level = level; | |
267 | } | |
171ec6b0 MB |
268 | if (ret != 0) |
269 | goto out; | |
270 | ||
271 | if (card && card->set_bias_level_post) | |
d4c6005f | 272 | ret = card->set_bias_level_post(card, dapm, level); |
171ec6b0 | 273 | out: |
84e90930 MB |
274 | trace_snd_soc_bias_level_done(card, level); |
275 | ||
452c5eaa MB |
276 | return ret; |
277 | } | |
278 | ||
2b97eabc RP |
279 | /* set up initial codec paths */ |
280 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, | |
281 | struct snd_soc_dapm_path *p, int i) | |
282 | { | |
283 | switch (w->id) { | |
284 | case snd_soc_dapm_switch: | |
ca9c1aae IM |
285 | case snd_soc_dapm_mixer: |
286 | case snd_soc_dapm_mixer_named_ctl: { | |
2b97eabc | 287 | int val; |
4eaa9819 | 288 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
82cfecdc | 289 | w->kcontrol_news[i].private_value; |
815ecf8d JS |
290 | unsigned int reg = mc->reg; |
291 | unsigned int shift = mc->shift; | |
4eaa9819 | 292 | int max = mc->max; |
815ecf8d JS |
293 | unsigned int mask = (1 << fls(max)) - 1; |
294 | unsigned int invert = mc->invert; | |
2b97eabc | 295 | |
0445bdf4 | 296 | val = soc_widget_read(w, reg); |
2b97eabc RP |
297 | val = (val >> shift) & mask; |
298 | ||
299 | if ((invert && !val) || (!invert && val)) | |
300 | p->connect = 1; | |
301 | else | |
302 | p->connect = 0; | |
303 | } | |
304 | break; | |
305 | case snd_soc_dapm_mux: { | |
82cfecdc SW |
306 | struct soc_enum *e = (struct soc_enum *) |
307 | w->kcontrol_news[i].private_value; | |
2b97eabc RP |
308 | int val, item, bitmask; |
309 | ||
f8ba0b7b | 310 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
88d96086 | 311 | ; |
0445bdf4 | 312 | val = soc_widget_read(w, e->reg); |
2b97eabc RP |
313 | item = (val >> e->shift_l) & (bitmask - 1); |
314 | ||
315 | p->connect = 0; | |
f8ba0b7b | 316 | for (i = 0; i < e->max; i++) { |
2b97eabc RP |
317 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
318 | p->connect = 1; | |
319 | } | |
320 | } | |
321 | break; | |
24ff33ac | 322 | case snd_soc_dapm_virt_mux: { |
82cfecdc SW |
323 | struct soc_enum *e = (struct soc_enum *) |
324 | w->kcontrol_news[i].private_value; | |
24ff33ac DP |
325 | |
326 | p->connect = 0; | |
327 | /* since a virtual mux has no backing registers to | |
328 | * decide which path to connect, it will try to match | |
329 | * with the first enumeration. This is to ensure | |
330 | * that the default mux choice (the first) will be | |
331 | * correctly powered up during initialization. | |
332 | */ | |
333 | if (!strcmp(p->name, e->texts[0])) | |
334 | p->connect = 1; | |
335 | } | |
336 | break; | |
2e72f8e3 | 337 | case snd_soc_dapm_value_mux: { |
74155556 | 338 | struct soc_enum *e = (struct soc_enum *) |
82cfecdc | 339 | w->kcontrol_news[i].private_value; |
2e72f8e3 PU |
340 | int val, item; |
341 | ||
0445bdf4 | 342 | val = soc_widget_read(w, e->reg); |
2e72f8e3 PU |
343 | val = (val >> e->shift_l) & e->mask; |
344 | for (item = 0; item < e->max; item++) { | |
345 | if (val == e->values[item]) | |
346 | break; | |
347 | } | |
348 | ||
349 | p->connect = 0; | |
350 | for (i = 0; i < e->max; i++) { | |
351 | if (!(strcmp(p->name, e->texts[i])) && item == i) | |
352 | p->connect = 1; | |
353 | } | |
354 | } | |
355 | break; | |
56563100 | 356 | /* does not affect routing - always connected */ |
2b97eabc | 357 | case snd_soc_dapm_pga: |
d88429a6 | 358 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
359 | case snd_soc_dapm_output: |
360 | case snd_soc_dapm_adc: | |
361 | case snd_soc_dapm_input: | |
1ab97c8c | 362 | case snd_soc_dapm_siggen: |
2b97eabc RP |
363 | case snd_soc_dapm_dac: |
364 | case snd_soc_dapm_micbias: | |
365 | case snd_soc_dapm_vmid: | |
246d0a17 | 366 | case snd_soc_dapm_supply: |
62ea874a | 367 | case snd_soc_dapm_regulator_supply: |
010ff262 MB |
368 | case snd_soc_dapm_aif_in: |
369 | case snd_soc_dapm_aif_out: | |
888df395 | 370 | case snd_soc_dapm_dai: |
2b97eabc RP |
371 | case snd_soc_dapm_hp: |
372 | case snd_soc_dapm_mic: | |
373 | case snd_soc_dapm_spk: | |
374 | case snd_soc_dapm_line: | |
56563100 MB |
375 | p->connect = 1; |
376 | break; | |
377 | /* does affect routing - dynamically connected */ | |
2b97eabc RP |
378 | case snd_soc_dapm_pre: |
379 | case snd_soc_dapm_post: | |
380 | p->connect = 0; | |
381 | break; | |
382 | } | |
383 | } | |
384 | ||
74b8f955 | 385 | /* connect mux widget to its interconnecting audio paths */ |
ce6120cc | 386 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
387 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
388 | struct snd_soc_dapm_path *path, const char *control_name, | |
389 | const struct snd_kcontrol_new *kcontrol) | |
390 | { | |
391 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
392 | int i; | |
393 | ||
f8ba0b7b | 394 | for (i = 0; i < e->max; i++) { |
2b97eabc | 395 | if (!(strcmp(control_name, e->texts[i]))) { |
8ddab3f5 | 396 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
397 | list_add(&path->list_sink, &dest->sources); |
398 | list_add(&path->list_source, &src->sinks); | |
399 | path->name = (char*)e->texts[i]; | |
400 | dapm_set_path_status(dest, path, 0); | |
401 | return 0; | |
402 | } | |
403 | } | |
404 | ||
405 | return -ENODEV; | |
406 | } | |
407 | ||
74b8f955 | 408 | /* connect mixer widget to its interconnecting audio paths */ |
ce6120cc | 409 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
2b97eabc RP |
410 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
411 | struct snd_soc_dapm_path *path, const char *control_name) | |
412 | { | |
413 | int i; | |
414 | ||
415 | /* search for mixer kcontrol */ | |
416 | for (i = 0; i < dest->num_kcontrols; i++) { | |
82cfecdc | 417 | if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
8ddab3f5 | 418 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
419 | list_add(&path->list_sink, &dest->sources); |
420 | list_add(&path->list_source, &src->sinks); | |
82cfecdc | 421 | path->name = dest->kcontrol_news[i].name; |
2b97eabc RP |
422 | dapm_set_path_status(dest, path, i); |
423 | return 0; | |
424 | } | |
425 | } | |
426 | return -ENODEV; | |
427 | } | |
428 | ||
af46800b | 429 | static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
1007da06 | 430 | struct snd_soc_dapm_widget *kcontrolw, |
af46800b SW |
431 | const struct snd_kcontrol_new *kcontrol_new, |
432 | struct snd_kcontrol **kcontrol) | |
433 | { | |
434 | struct snd_soc_dapm_widget *w; | |
435 | int i; | |
436 | ||
437 | *kcontrol = NULL; | |
438 | ||
439 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
1007da06 SW |
440 | if (w == kcontrolw || w->dapm != kcontrolw->dapm) |
441 | continue; | |
af46800b SW |
442 | for (i = 0; i < w->num_kcontrols; i++) { |
443 | if (&w->kcontrol_news[i] == kcontrol_new) { | |
444 | if (w->kcontrols) | |
445 | *kcontrol = w->kcontrols[i]; | |
446 | return 1; | |
447 | } | |
448 | } | |
449 | } | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
2b97eabc | 454 | /* create new dapm mixer control */ |
4b80b8c2 | 455 | static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
2b97eabc | 456 | { |
4b80b8c2 | 457 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc | 458 | int i, ret = 0; |
3e5ff4df | 459 | size_t name_len, prefix_len; |
2b97eabc | 460 | struct snd_soc_dapm_path *path; |
12ea2c78 | 461 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 462 | const char *prefix; |
fafd2176 SW |
463 | struct snd_soc_dapm_widget_list *wlist; |
464 | size_t wlistsize; | |
efb7ac3f MB |
465 | |
466 | if (dapm->codec) | |
467 | prefix = dapm->codec->name_prefix; | |
468 | else | |
469 | prefix = NULL; | |
2b97eabc | 470 | |
3e5ff4df MB |
471 | if (prefix) |
472 | prefix_len = strlen(prefix) + 1; | |
473 | else | |
474 | prefix_len = 0; | |
475 | ||
2b97eabc RP |
476 | /* add kcontrol */ |
477 | for (i = 0; i < w->num_kcontrols; i++) { | |
478 | ||
479 | /* match name */ | |
480 | list_for_each_entry(path, &w->sources, list_sink) { | |
481 | ||
482 | /* mixer/mux paths name must match control name */ | |
82cfecdc | 483 | if (path->name != (char *)w->kcontrol_news[i].name) |
2b97eabc RP |
484 | continue; |
485 | ||
82cd8764 LPC |
486 | if (w->kcontrols[i]) { |
487 | path->kcontrol = w->kcontrols[i]; | |
488 | continue; | |
489 | } | |
490 | ||
fafd2176 SW |
491 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
492 | sizeof(struct snd_soc_dapm_widget *), | |
493 | wlist = kzalloc(wlistsize, GFP_KERNEL); | |
494 | if (wlist == NULL) { | |
495 | dev_err(dapm->dev, | |
496 | "asoc: can't allocate widget list for %s\n", | |
497 | w->name); | |
498 | return -ENOMEM; | |
499 | } | |
500 | wlist->num_widgets = 1; | |
501 | wlist->widgets[0] = w; | |
502 | ||
ca9c1aae IM |
503 | /* add dapm control with long name. |
504 | * for dapm_mixer this is the concatenation of the | |
505 | * mixer and kcontrol name. | |
506 | * for dapm_mixer_named_ctl this is simply the | |
507 | * kcontrol name. | |
508 | */ | |
82cfecdc | 509 | name_len = strlen(w->kcontrol_news[i].name) + 1; |
07495f3e | 510 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
ca9c1aae IM |
511 | name_len += 1 + strlen(w->name); |
512 | ||
219b93f5 | 513 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
ca9c1aae | 514 | |
fafd2176 SW |
515 | if (path->long_name == NULL) { |
516 | kfree(wlist); | |
2b97eabc | 517 | return -ENOMEM; |
fafd2176 | 518 | } |
2b97eabc | 519 | |
ca9c1aae | 520 | switch (w->id) { |
ca9c1aae | 521 | default: |
3e5ff4df MB |
522 | /* The control will get a prefix from |
523 | * the control creation process but | |
524 | * we're also using the same prefix | |
525 | * for widgets so cut the prefix off | |
526 | * the front of the widget name. | |
527 | */ | |
888df395 MB |
528 | snprintf((char *)path->long_name, name_len, |
529 | "%s %s", w->name + prefix_len, | |
82cfecdc | 530 | w->kcontrol_news[i].name); |
07495f3e | 531 | break; |
ca9c1aae | 532 | case snd_soc_dapm_mixer_named_ctl: |
888df395 MB |
533 | snprintf((char *)path->long_name, name_len, |
534 | "%s", w->kcontrol_news[i].name); | |
07495f3e | 535 | break; |
ca9c1aae IM |
536 | } |
537 | ||
888df395 | 538 | ((char *)path->long_name)[name_len - 1] = '\0'; |
219b93f5 | 539 | |
fafd2176 SW |
540 | path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], |
541 | wlist, path->long_name, | |
542 | prefix); | |
ce6120cc | 543 | ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc | 544 | if (ret < 0) { |
f7d41ae8 JN |
545 | dev_err(dapm->dev, |
546 | "asoc: failed to add dapm kcontrol %s: %d\n", | |
547 | path->long_name, ret); | |
fafd2176 | 548 | kfree(wlist); |
2b97eabc RP |
549 | kfree(path->long_name); |
550 | path->long_name = NULL; | |
551 | return ret; | |
552 | } | |
fad59888 | 553 | w->kcontrols[i] = path->kcontrol; |
2b97eabc RP |
554 | } |
555 | } | |
556 | return ret; | |
557 | } | |
558 | ||
559 | /* create new dapm mux control */ | |
4b80b8c2 | 560 | static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc | 561 | { |
4b80b8c2 | 562 | struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc RP |
563 | struct snd_soc_dapm_path *path = NULL; |
564 | struct snd_kcontrol *kcontrol; | |
12ea2c78 | 565 | struct snd_card *card = dapm->card->snd_card; |
efb7ac3f | 566 | const char *prefix; |
3e5ff4df | 567 | size_t prefix_len; |
af46800b | 568 | int ret; |
fafd2176 | 569 | struct snd_soc_dapm_widget_list *wlist; |
af46800b | 570 | int shared, wlistentries; |
fafd2176 | 571 | size_t wlistsize; |
888df395 | 572 | const char *name; |
2b97eabc | 573 | |
af46800b SW |
574 | if (w->num_kcontrols != 1) { |
575 | dev_err(dapm->dev, | |
576 | "asoc: mux %s has incorrect number of controls\n", | |
577 | w->name); | |
2b97eabc RP |
578 | return -EINVAL; |
579 | } | |
580 | ||
1007da06 | 581 | shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b SW |
582 | &kcontrol); |
583 | if (kcontrol) { | |
584 | wlist = kcontrol->private_data; | |
585 | wlistentries = wlist->num_widgets + 1; | |
586 | } else { | |
587 | wlist = NULL; | |
588 | wlistentries = 1; | |
589 | } | |
fafd2176 | 590 | wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b SW |
591 | wlistentries * sizeof(struct snd_soc_dapm_widget *), |
592 | wlist = krealloc(wlist, wlistsize, GFP_KERNEL); | |
fafd2176 SW |
593 | if (wlist == NULL) { |
594 | dev_err(dapm->dev, | |
595 | "asoc: can't allocate widget list for %s\n", w->name); | |
596 | return -ENOMEM; | |
597 | } | |
af46800b SW |
598 | wlist->num_widgets = wlistentries; |
599 | wlist->widgets[wlistentries - 1] = w; | |
efb7ac3f | 600 | |
af46800b SW |
601 | if (!kcontrol) { |
602 | if (dapm->codec) | |
603 | prefix = dapm->codec->name_prefix; | |
604 | else | |
605 | prefix = NULL; | |
606 | ||
607 | if (shared) { | |
608 | name = w->kcontrol_news[0].name; | |
609 | prefix_len = 0; | |
610 | } else { | |
611 | name = w->name; | |
612 | if (prefix) | |
613 | prefix_len = strlen(prefix) + 1; | |
614 | else | |
615 | prefix_len = 0; | |
616 | } | |
3e5ff4df | 617 | |
af46800b SW |
618 | /* |
619 | * The control will get a prefix from the control creation | |
620 | * process but we're also using the same prefix for widgets so | |
621 | * cut the prefix off the front of the widget name. | |
622 | */ | |
623 | kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, | |
624 | name + prefix_len, prefix); | |
625 | ret = snd_ctl_add(card, kcontrol); | |
626 | if (ret < 0) { | |
53daf208 MB |
627 | dev_err(dapm->dev, "failed to add kcontrol %s: %d\n", |
628 | w->name, ret); | |
af46800b SW |
629 | kfree(wlist); |
630 | return ret; | |
631 | } | |
632 | } | |
ce6120cc | 633 | |
af46800b | 634 | kcontrol->private_data = wlist; |
2b97eabc | 635 | |
fad59888 SW |
636 | w->kcontrols[0] = kcontrol; |
637 | ||
2b97eabc RP |
638 | list_for_each_entry(path, &w->sources, list_sink) |
639 | path->kcontrol = kcontrol; | |
640 | ||
af46800b | 641 | return 0; |
2b97eabc RP |
642 | } |
643 | ||
644 | /* create new dapm volume control */ | |
4b80b8c2 | 645 | static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc | 646 | { |
a6c65736 | 647 | if (w->num_kcontrols) |
f7d41ae8 JN |
648 | dev_err(w->dapm->dev, |
649 | "asoc: PGA controls not supported: '%s'\n", w->name); | |
2b97eabc | 650 | |
a6c65736 | 651 | return 0; |
2b97eabc RP |
652 | } |
653 | ||
654 | /* reset 'walked' bit for each dapm path */ | |
ce6120cc | 655 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
656 | { |
657 | struct snd_soc_dapm_path *p; | |
658 | ||
8ddab3f5 | 659 | list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc RP |
660 | p->walked = 0; |
661 | } | |
662 | ||
9949788b MB |
663 | /* We implement power down on suspend by checking the power state of |
664 | * the ALSA card - when we are suspending the ALSA state for the card | |
665 | * is set to D3. | |
666 | */ | |
667 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) | |
668 | { | |
12ea2c78 | 669 | int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b | 670 | |
f0fba2ad | 671 | switch (level) { |
9949788b MB |
672 | case SNDRV_CTL_POWER_D3hot: |
673 | case SNDRV_CTL_POWER_D3cold: | |
1547aba9 | 674 | if (widget->ignore_suspend) |
f7d41ae8 JN |
675 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
676 | widget->name); | |
1547aba9 | 677 | return widget->ignore_suspend; |
9949788b MB |
678 | default: |
679 | return 1; | |
680 | } | |
681 | } | |
682 | ||
2b97eabc RP |
683 | /* |
684 | * Recursively check for a completed path to an active or physically connected | |
685 | * output widget. Returns number of complete paths. | |
686 | */ | |
687 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) | |
688 | { | |
689 | struct snd_soc_dapm_path *path; | |
690 | int con = 0; | |
691 | ||
024dc078 MB |
692 | if (widget->outputs >= 0) |
693 | return widget->outputs; | |
694 | ||
de02d078 MB |
695 | DAPM_UPDATE_STAT(widget, path_checks); |
696 | ||
62ea874a MB |
697 | switch (widget->id) { |
698 | case snd_soc_dapm_supply: | |
699 | case snd_soc_dapm_regulator_supply: | |
246d0a17 | 700 | return 0; |
62ea874a MB |
701 | default: |
702 | break; | |
703 | } | |
246d0a17 | 704 | |
010ff262 MB |
705 | switch (widget->id) { |
706 | case snd_soc_dapm_adc: | |
707 | case snd_soc_dapm_aif_out: | |
888df395 | 708 | case snd_soc_dapm_dai: |
024dc078 MB |
709 | if (widget->active) { |
710 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
711 | return widget->outputs; | |
712 | } | |
010ff262 MB |
713 | default: |
714 | break; | |
715 | } | |
2b97eabc RP |
716 | |
717 | if (widget->connected) { | |
718 | /* connected pin ? */ | |
024dc078 MB |
719 | if (widget->id == snd_soc_dapm_output && !widget->ext) { |
720 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
721 | return widget->outputs; | |
722 | } | |
2b97eabc RP |
723 | |
724 | /* connected jack or spk ? */ | |
024dc078 MB |
725 | if (widget->id == snd_soc_dapm_hp || |
726 | widget->id == snd_soc_dapm_spk || | |
727 | (widget->id == snd_soc_dapm_line && | |
728 | !list_empty(&widget->sources))) { | |
729 | widget->outputs = snd_soc_dapm_suspend_check(widget); | |
730 | return widget->outputs; | |
731 | } | |
2b97eabc RP |
732 | } |
733 | ||
734 | list_for_each_entry(path, &widget->sinks, list_source) { | |
e56235e0 MB |
735 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
736 | ||
bf3a9e13 MB |
737 | if (path->weak) |
738 | continue; | |
739 | ||
2b97eabc RP |
740 | if (path->walked) |
741 | continue; | |
742 | ||
743 | if (path->sink && path->connect) { | |
744 | path->walked = 1; | |
745 | con += is_connected_output_ep(path->sink); | |
746 | } | |
747 | } | |
748 | ||
024dc078 MB |
749 | widget->outputs = con; |
750 | ||
2b97eabc RP |
751 | return con; |
752 | } | |
753 | ||
754 | /* | |
755 | * Recursively check for a completed path to an active or physically connected | |
756 | * input widget. Returns number of complete paths. | |
757 | */ | |
758 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) | |
759 | { | |
760 | struct snd_soc_dapm_path *path; | |
761 | int con = 0; | |
762 | ||
024dc078 MB |
763 | if (widget->inputs >= 0) |
764 | return widget->inputs; | |
765 | ||
de02d078 MB |
766 | DAPM_UPDATE_STAT(widget, path_checks); |
767 | ||
62ea874a MB |
768 | switch (widget->id) { |
769 | case snd_soc_dapm_supply: | |
770 | case snd_soc_dapm_regulator_supply: | |
246d0a17 | 771 | return 0; |
62ea874a MB |
772 | default: |
773 | break; | |
774 | } | |
246d0a17 | 775 | |
2b97eabc | 776 | /* active stream ? */ |
010ff262 MB |
777 | switch (widget->id) { |
778 | case snd_soc_dapm_dac: | |
779 | case snd_soc_dapm_aif_in: | |
888df395 | 780 | case snd_soc_dapm_dai: |
024dc078 MB |
781 | if (widget->active) { |
782 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
783 | return widget->inputs; | |
784 | } | |
010ff262 MB |
785 | default: |
786 | break; | |
787 | } | |
2b97eabc RP |
788 | |
789 | if (widget->connected) { | |
790 | /* connected pin ? */ | |
024dc078 MB |
791 | if (widget->id == snd_soc_dapm_input && !widget->ext) { |
792 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
793 | return widget->inputs; | |
794 | } | |
2b97eabc RP |
795 | |
796 | /* connected VMID/Bias for lower pops */ | |
024dc078 MB |
797 | if (widget->id == snd_soc_dapm_vmid) { |
798 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
799 | return widget->inputs; | |
800 | } | |
2b97eabc RP |
801 | |
802 | /* connected jack ? */ | |
eaeae5d9 | 803 | if (widget->id == snd_soc_dapm_mic || |
024dc078 MB |
804 | (widget->id == snd_soc_dapm_line && |
805 | !list_empty(&widget->sinks))) { | |
806 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
807 | return widget->inputs; | |
808 | } | |
809 | ||
1ab97c8c MB |
810 | /* signal generator */ |
811 | if (widget->id == snd_soc_dapm_siggen) { | |
812 | widget->inputs = snd_soc_dapm_suspend_check(widget); | |
813 | return widget->inputs; | |
814 | } | |
2b97eabc RP |
815 | } |
816 | ||
817 | list_for_each_entry(path, &widget->sources, list_sink) { | |
e56235e0 MB |
818 | DAPM_UPDATE_STAT(widget, neighbour_checks); |
819 | ||
bf3a9e13 MB |
820 | if (path->weak) |
821 | continue; | |
822 | ||
2b97eabc RP |
823 | if (path->walked) |
824 | continue; | |
825 | ||
826 | if (path->source && path->connect) { | |
827 | path->walked = 1; | |
828 | con += is_connected_input_ep(path->source); | |
829 | } | |
830 | } | |
831 | ||
024dc078 MB |
832 | widget->inputs = con; |
833 | ||
2b97eabc RP |
834 | return con; |
835 | } | |
836 | ||
e2be2ccf JN |
837 | /* |
838 | * Handler for generic register modifier widget. | |
839 | */ | |
840 | int dapm_reg_event(struct snd_soc_dapm_widget *w, | |
841 | struct snd_kcontrol *kcontrol, int event) | |
842 | { | |
843 | unsigned int val; | |
844 | ||
845 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
846 | val = w->on_val; | |
847 | else | |
848 | val = w->off_val; | |
849 | ||
0445bdf4 | 850 | soc_widget_update_bits(w, -(w->reg + 1), |
e2be2ccf JN |
851 | w->mask << w->shift, val << w->shift); |
852 | ||
853 | return 0; | |
854 | } | |
11589418 | 855 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf | 856 | |
62ea874a MB |
857 | /* |
858 | * Handler for regulator supply widget. | |
859 | */ | |
860 | int dapm_regulator_event(struct snd_soc_dapm_widget *w, | |
861 | struct snd_kcontrol *kcontrol, int event) | |
862 | { | |
863 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
864 | return regulator_enable(w->priv); | |
865 | else | |
866 | return regulator_disable_deferred(w->priv, w->shift); | |
867 | } | |
868 | EXPORT_SYMBOL_GPL(dapm_regulator_event); | |
869 | ||
d805002b MB |
870 | static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) |
871 | { | |
9b8a83b2 MB |
872 | if (w->power_checked) |
873 | return w->new_power; | |
874 | ||
d805002b | 875 | if (w->force) |
9b8a83b2 | 876 | w->new_power = 1; |
d805002b | 877 | else |
9b8a83b2 MB |
878 | w->new_power = w->power_check(w); |
879 | ||
880 | w->power_checked = true; | |
881 | ||
882 | return w->new_power; | |
d805002b MB |
883 | } |
884 | ||
cd0f2d47 MB |
885 | /* Generic check to see if a widget should be powered. |
886 | */ | |
887 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) | |
888 | { | |
889 | int in, out; | |
890 | ||
de02d078 MB |
891 | DAPM_UPDATE_STAT(w, power_checks); |
892 | ||
cd0f2d47 | 893 | in = is_connected_input_ep(w); |
ce6120cc | 894 | dapm_clear_walk(w->dapm); |
cd0f2d47 | 895 | out = is_connected_output_ep(w); |
ce6120cc | 896 | dapm_clear_walk(w->dapm); |
cd0f2d47 MB |
897 | return out != 0 && in != 0; |
898 | } | |
899 | ||
888df395 MB |
900 | static int dapm_dai_check_power(struct snd_soc_dapm_widget *w) |
901 | { | |
902 | DAPM_UPDATE_STAT(w, power_checks); | |
903 | ||
904 | return w->active; | |
905 | } | |
906 | ||
6ea31b9f MB |
907 | /* Check to see if an ADC has power */ |
908 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) | |
909 | { | |
910 | int in; | |
911 | ||
de02d078 MB |
912 | DAPM_UPDATE_STAT(w, power_checks); |
913 | ||
6ea31b9f MB |
914 | if (w->active) { |
915 | in = is_connected_input_ep(w); | |
ce6120cc | 916 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
917 | return in != 0; |
918 | } else { | |
919 | return dapm_generic_check_power(w); | |
920 | } | |
921 | } | |
922 | ||
923 | /* Check to see if a DAC has power */ | |
924 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) | |
925 | { | |
926 | int out; | |
927 | ||
de02d078 MB |
928 | DAPM_UPDATE_STAT(w, power_checks); |
929 | ||
6ea31b9f MB |
930 | if (w->active) { |
931 | out = is_connected_output_ep(w); | |
ce6120cc | 932 | dapm_clear_walk(w->dapm); |
6ea31b9f MB |
933 | return out != 0; |
934 | } else { | |
935 | return dapm_generic_check_power(w); | |
936 | } | |
937 | } | |
938 | ||
246d0a17 MB |
939 | /* Check to see if a power supply is needed */ |
940 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) | |
941 | { | |
942 | struct snd_soc_dapm_path *path; | |
246d0a17 | 943 | |
de02d078 MB |
944 | DAPM_UPDATE_STAT(w, power_checks); |
945 | ||
246d0a17 MB |
946 | /* Check if one of our outputs is connected */ |
947 | list_for_each_entry(path, &w->sinks, list_source) { | |
a8fdac83 MB |
948 | DAPM_UPDATE_STAT(w, neighbour_checks); |
949 | ||
bf3a9e13 MB |
950 | if (path->weak) |
951 | continue; | |
952 | ||
215edda3 MB |
953 | if (path->connected && |
954 | !path->connected(path->source, path->sink)) | |
955 | continue; | |
956 | ||
3017358a MB |
957 | if (!path->sink) |
958 | continue; | |
959 | ||
f68d7e16 MB |
960 | if (dapm_widget_power_check(path->sink)) |
961 | return 1; | |
246d0a17 MB |
962 | } |
963 | ||
ce6120cc | 964 | dapm_clear_walk(w->dapm); |
246d0a17 | 965 | |
f68d7e16 | 966 | return 0; |
246d0a17 MB |
967 | } |
968 | ||
35c64bca MB |
969 | static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) |
970 | { | |
971 | return 1; | |
972 | } | |
973 | ||
38357ab2 MB |
974 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
975 | struct snd_soc_dapm_widget *b, | |
828a842f | 976 | bool power_up) |
42aa3418 | 977 | { |
828a842f MB |
978 | int *sort; |
979 | ||
980 | if (power_up) | |
981 | sort = dapm_up_seq; | |
982 | else | |
983 | sort = dapm_down_seq; | |
984 | ||
38357ab2 MB |
985 | if (sort[a->id] != sort[b->id]) |
986 | return sort[a->id] - sort[b->id]; | |
20e4859d MB |
987 | if (a->subseq != b->subseq) { |
988 | if (power_up) | |
989 | return a->subseq - b->subseq; | |
990 | else | |
991 | return b->subseq - a->subseq; | |
992 | } | |
b22ead2a MB |
993 | if (a->reg != b->reg) |
994 | return a->reg - b->reg; | |
84dab567 MB |
995 | if (a->dapm != b->dapm) |
996 | return (unsigned long)a->dapm - (unsigned long)b->dapm; | |
42aa3418 | 997 | |
38357ab2 MB |
998 | return 0; |
999 | } | |
42aa3418 | 1000 | |
38357ab2 MB |
1001 | /* Insert a widget in order into a DAPM power sequence. */ |
1002 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, | |
1003 | struct list_head *list, | |
828a842f | 1004 | bool power_up) |
38357ab2 MB |
1005 | { |
1006 | struct snd_soc_dapm_widget *w; | |
1007 | ||
1008 | list_for_each_entry(w, list, power_list) | |
828a842f | 1009 | if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2 MB |
1010 | list_add_tail(&new_widget->power_list, &w->power_list); |
1011 | return; | |
1012 | } | |
1013 | ||
1014 | list_add_tail(&new_widget->power_list, list); | |
1015 | } | |
1016 | ||
68f89ad8 MB |
1017 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
1018 | struct snd_soc_dapm_widget *w, int event) | |
1019 | { | |
1020 | struct snd_soc_card *card = dapm->card; | |
1021 | const char *ev_name; | |
1022 | int power, ret; | |
1023 | ||
1024 | switch (event) { | |
1025 | case SND_SOC_DAPM_PRE_PMU: | |
1026 | ev_name = "PRE_PMU"; | |
1027 | power = 1; | |
1028 | break; | |
1029 | case SND_SOC_DAPM_POST_PMU: | |
1030 | ev_name = "POST_PMU"; | |
1031 | power = 1; | |
1032 | break; | |
1033 | case SND_SOC_DAPM_PRE_PMD: | |
1034 | ev_name = "PRE_PMD"; | |
1035 | power = 0; | |
1036 | break; | |
1037 | case SND_SOC_DAPM_POST_PMD: | |
1038 | ev_name = "POST_PMD"; | |
1039 | power = 0; | |
1040 | break; | |
1041 | default: | |
1042 | BUG(); | |
1043 | return; | |
1044 | } | |
1045 | ||
1046 | if (w->power != power) | |
1047 | return; | |
1048 | ||
1049 | if (w->event && (w->event_flags & event)) { | |
1050 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", | |
1051 | w->name, ev_name); | |
84e90930 | 1052 | trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8 | 1053 | ret = w->event(w, NULL, event); |
84e90930 | 1054 | trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8 MB |
1055 | if (ret < 0) |
1056 | pr_err("%s: %s event failed: %d\n", | |
1057 | ev_name, w->name, ret); | |
1058 | } | |
1059 | } | |
1060 | ||
b22ead2a | 1061 | /* Apply the coalesced changes from a DAPM sequence */ |
ce6120cc | 1062 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a | 1063 | struct list_head *pending) |
163cac06 | 1064 | { |
3a45b867 | 1065 | struct snd_soc_card *card = dapm->card; |
68f89ad8 MB |
1066 | struct snd_soc_dapm_widget *w; |
1067 | int reg, power; | |
b22ead2a MB |
1068 | unsigned int value = 0; |
1069 | unsigned int mask = 0; | |
1070 | unsigned int cur_mask; | |
1071 | ||
1072 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1073 | power_list)->reg; | |
1074 | ||
1075 | list_for_each_entry(w, pending, power_list) { | |
1076 | cur_mask = 1 << w->shift; | |
1077 | BUG_ON(reg != w->reg); | |
1078 | ||
1079 | if (w->invert) | |
1080 | power = !w->power; | |
1081 | else | |
1082 | power = w->power; | |
1083 | ||
1084 | mask |= cur_mask; | |
1085 | if (power) | |
1086 | value |= cur_mask; | |
1087 | ||
fd8d3bc0 | 1088 | pop_dbg(dapm->dev, card->pop_time, |
b22ead2a MB |
1089 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
1090 | w->name, reg, value, mask); | |
81628103 | 1091 | |
68f89ad8 MB |
1092 | /* Check for events */ |
1093 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); | |
1094 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); | |
81628103 MB |
1095 | } |
1096 | ||
1097 | if (reg >= 0) { | |
29376bc7 MB |
1098 | /* Any widget will do, they should all be updating the |
1099 | * same register. | |
1100 | */ | |
1101 | w = list_first_entry(pending, struct snd_soc_dapm_widget, | |
1102 | power_list); | |
1103 | ||
fd8d3bc0 | 1104 | pop_dbg(dapm->dev, card->pop_time, |
81628103 | 1105 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
3a45b867 JN |
1106 | value, mask, reg, card->pop_time); |
1107 | pop_wait(card->pop_time); | |
0445bdf4 | 1108 | soc_widget_update_bits(w, reg, mask, value); |
b22ead2a MB |
1109 | } |
1110 | ||
81628103 | 1111 | list_for_each_entry(w, pending, power_list) { |
68f89ad8 MB |
1112 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
1113 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); | |
81628103 | 1114 | } |
b22ead2a | 1115 | } |
42aa3418 | 1116 | |
b22ead2a MB |
1117 | /* Apply a DAPM power sequence. |
1118 | * | |
1119 | * We walk over a pre-sorted list of widgets to apply power to. In | |
1120 | * order to minimise the number of writes to the device required | |
1121 | * multiple widgets will be updated in a single write where possible. | |
1122 | * Currently anything that requires more than a single write is not | |
1123 | * handled. | |
1124 | */ | |
ce6120cc | 1125 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f | 1126 | struct list_head *list, int event, bool power_up) |
b22ead2a MB |
1127 | { |
1128 | struct snd_soc_dapm_widget *w, *n; | |
1129 | LIST_HEAD(pending); | |
1130 | int cur_sort = -1; | |
20e4859d | 1131 | int cur_subseq = -1; |
b22ead2a | 1132 | int cur_reg = SND_SOC_NOPM; |
7be31be8 | 1133 | struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6 | 1134 | int ret, i; |
828a842f MB |
1135 | int *sort; |
1136 | ||
1137 | if (power_up) | |
1138 | sort = dapm_up_seq; | |
1139 | else | |
1140 | sort = dapm_down_seq; | |
163cac06 | 1141 | |
b22ead2a MB |
1142 | list_for_each_entry_safe(w, n, list, power_list) { |
1143 | ret = 0; | |
1144 | ||
1145 | /* Do we need to apply any queued changes? */ | |
7be31be8 | 1146 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859d | 1147 | w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a | 1148 | if (!list_empty(&pending)) |
7be31be8 | 1149 | dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a | 1150 | |
474b62d6 MB |
1151 | if (cur_dapm && cur_dapm->seq_notifier) { |
1152 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1153 | if (sort[i] == cur_sort) | |
1154 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d MB |
1155 | i, |
1156 | cur_subseq); | |
474b62d6 MB |
1157 | } |
1158 | ||
b22ead2a MB |
1159 | INIT_LIST_HEAD(&pending); |
1160 | cur_sort = -1; | |
b0b3e6f8 | 1161 | cur_subseq = INT_MIN; |
b22ead2a | 1162 | cur_reg = SND_SOC_NOPM; |
7be31be8 | 1163 | cur_dapm = NULL; |
b22ead2a MB |
1164 | } |
1165 | ||
163cac06 MB |
1166 | switch (w->id) { |
1167 | case snd_soc_dapm_pre: | |
1168 | if (!w->event) | |
b22ead2a MB |
1169 | list_for_each_entry_safe_continue(w, n, list, |
1170 | power_list); | |
163cac06 | 1171 | |
b22ead2a | 1172 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1173 | ret = w->event(w, |
1174 | NULL, SND_SOC_DAPM_PRE_PMU); | |
b22ead2a | 1175 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1176 | ret = w->event(w, |
1177 | NULL, SND_SOC_DAPM_PRE_PMD); | |
163cac06 MB |
1178 | break; |
1179 | ||
1180 | case snd_soc_dapm_post: | |
1181 | if (!w->event) | |
b22ead2a MB |
1182 | list_for_each_entry_safe_continue(w, n, list, |
1183 | power_list); | |
163cac06 | 1184 | |
b22ead2a | 1185 | if (event == SND_SOC_DAPM_STREAM_START) |
163cac06 MB |
1186 | ret = w->event(w, |
1187 | NULL, SND_SOC_DAPM_POST_PMU); | |
b22ead2a | 1188 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac06 MB |
1189 | ret = w->event(w, |
1190 | NULL, SND_SOC_DAPM_POST_PMD); | |
163cac06 MB |
1191 | break; |
1192 | ||
b22ead2a | 1193 | default: |
81628103 MB |
1194 | /* Queue it up for application */ |
1195 | cur_sort = sort[w->id]; | |
20e4859d | 1196 | cur_subseq = w->subseq; |
81628103 | 1197 | cur_reg = w->reg; |
7be31be8 | 1198 | cur_dapm = w->dapm; |
81628103 MB |
1199 | list_move(&w->power_list, &pending); |
1200 | break; | |
163cac06 | 1201 | } |
b22ead2a MB |
1202 | |
1203 | if (ret < 0) | |
f7d41ae8 JN |
1204 | dev_err(w->dapm->dev, |
1205 | "Failed to apply widget power: %d\n", ret); | |
6ea31b9f | 1206 | } |
b22ead2a MB |
1207 | |
1208 | if (!list_empty(&pending)) | |
28e86808 | 1209 | dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6 MB |
1210 | |
1211 | if (cur_dapm && cur_dapm->seq_notifier) { | |
1212 | for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) | |
1213 | if (sort[i] == cur_sort) | |
1214 | cur_dapm->seq_notifier(cur_dapm, | |
f85a9e0d | 1215 | i, cur_subseq); |
474b62d6 | 1216 | } |
42aa3418 MB |
1217 | } |
1218 | ||
97404f2e MB |
1219 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
1220 | { | |
1221 | struct snd_soc_dapm_update *update = dapm->update; | |
1222 | struct snd_soc_dapm_widget *w; | |
1223 | int ret; | |
1224 | ||
1225 | if (!update) | |
1226 | return; | |
1227 | ||
1228 | w = update->widget; | |
1229 | ||
1230 | if (w->event && | |
1231 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { | |
1232 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); | |
1233 | if (ret != 0) | |
1234 | pr_err("%s DAPM pre-event failed: %d\n", | |
1235 | w->name, ret); | |
1236 | } | |
1237 | ||
1238 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, | |
1239 | update->val); | |
1240 | if (ret < 0) | |
1241 | pr_err("%s DAPM update failed: %d\n", w->name, ret); | |
1242 | ||
1243 | if (w->event && | |
1244 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { | |
1245 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); | |
1246 | if (ret != 0) | |
1247 | pr_err("%s DAPM post-event failed: %d\n", | |
1248 | w->name, ret); | |
1249 | } | |
1250 | } | |
1251 | ||
9d0624a7 MB |
1252 | /* Async callback run prior to DAPM sequences - brings to _PREPARE if |
1253 | * they're changing state. | |
1254 | */ | |
1255 | static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) | |
1256 | { | |
1257 | struct snd_soc_dapm_context *d = data; | |
1258 | int ret; | |
1259 | ||
56fba41f MB |
1260 | /* If we're off and we're not supposed to be go into STANDBY */ |
1261 | if (d->bias_level == SND_SOC_BIAS_OFF && | |
1262 | d->target_bias_level != SND_SOC_BIAS_OFF) { | |
f1aac484 MB |
1263 | if (d->dev) |
1264 | pm_runtime_get_sync(d->dev); | |
1265 | ||
9d0624a7 MB |
1266 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1267 | if (ret != 0) | |
1268 | dev_err(d->dev, | |
1269 | "Failed to turn on bias: %d\n", ret); | |
1270 | } | |
1271 | ||
56fba41f MB |
1272 | /* Prepare for a STADDBY->ON or ON->STANDBY transition */ |
1273 | if (d->bias_level != d->target_bias_level) { | |
9d0624a7 MB |
1274 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); |
1275 | if (ret != 0) | |
1276 | dev_err(d->dev, | |
1277 | "Failed to prepare bias: %d\n", ret); | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | /* Async callback run prior to DAPM sequences - brings to their final | |
1282 | * state. | |
1283 | */ | |
1284 | static void dapm_post_sequence_async(void *data, async_cookie_t cookie) | |
1285 | { | |
1286 | struct snd_soc_dapm_context *d = data; | |
1287 | int ret; | |
1288 | ||
1289 | /* If we just powered the last thing off drop to standby bias */ | |
56fba41f MB |
1290 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1291 | (d->target_bias_level == SND_SOC_BIAS_STANDBY || | |
1292 | d->target_bias_level == SND_SOC_BIAS_OFF)) { | |
9d0624a7 MB |
1293 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); |
1294 | if (ret != 0) | |
1295 | dev_err(d->dev, "Failed to apply standby bias: %d\n", | |
1296 | ret); | |
1297 | } | |
97404f2e | 1298 | |
9d0624a7 | 1299 | /* If we're in standby and can support bias off then do that */ |
56fba41f MB |
1300 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
1301 | d->target_bias_level == SND_SOC_BIAS_OFF) { | |
9d0624a7 MB |
1302 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); |
1303 | if (ret != 0) | |
1304 | dev_err(d->dev, "Failed to turn off bias: %d\n", ret); | |
f1aac484 MB |
1305 | |
1306 | if (d->dev) | |
fb644e9c | 1307 | pm_runtime_put(d->dev); |
9d0624a7 MB |
1308 | } |
1309 | ||
1310 | /* If we just powered up then move to active bias */ | |
56fba41f MB |
1311 | if (d->bias_level == SND_SOC_BIAS_PREPARE && |
1312 | d->target_bias_level == SND_SOC_BIAS_ON) { | |
9d0624a7 MB |
1313 | ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); |
1314 | if (ret != 0) | |
1315 | dev_err(d->dev, "Failed to apply active bias: %d\n", | |
1316 | ret); | |
1317 | } | |
1318 | } | |
97404f2e | 1319 | |
fe4fda5d MB |
1320 | static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, |
1321 | bool power, bool connect) | |
1322 | { | |
1323 | /* If a connection is being made or broken then that update | |
1324 | * will have marked the peer dirty, otherwise the widgets are | |
1325 | * not connected and this update has no impact. */ | |
1326 | if (!connect) | |
1327 | return; | |
1328 | ||
1329 | /* If the peer is already in the state we're moving to then we | |
1330 | * won't have an impact on it. */ | |
1331 | if (power != peer->power) | |
75c1f891 | 1332 | dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d MB |
1333 | } |
1334 | ||
05623c43 MB |
1335 | static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, |
1336 | struct list_head *up_list, | |
1337 | struct list_head *down_list) | |
1338 | { | |
db432b41 MB |
1339 | struct snd_soc_dapm_path *path; |
1340 | ||
05623c43 MB |
1341 | if (w->power == power) |
1342 | return; | |
1343 | ||
1344 | trace_snd_soc_dapm_widget_power(w, power); | |
1345 | ||
db432b41 | 1346 | /* If we changed our power state perhaps our neigbours changed |
fe4fda5d | 1347 | * also. |
db432b41 MB |
1348 | */ |
1349 | list_for_each_entry(path, &w->sources, list_sink) { | |
1350 | if (path->source) { | |
fe4fda5d MB |
1351 | dapm_widget_set_peer_power(path->source, power, |
1352 | path->connect); | |
db432b41 MB |
1353 | } |
1354 | } | |
f3bf3e45 MB |
1355 | switch (w->id) { |
1356 | case snd_soc_dapm_supply: | |
62ea874a | 1357 | case snd_soc_dapm_regulator_supply: |
f3bf3e45 MB |
1358 | /* Supplies can't affect their outputs, only their inputs */ |
1359 | break; | |
1360 | default: | |
1361 | list_for_each_entry(path, &w->sinks, list_source) { | |
1362 | if (path->sink) { | |
1363 | dapm_widget_set_peer_power(path->sink, power, | |
1364 | path->connect); | |
1365 | } | |
db432b41 | 1366 | } |
f3bf3e45 | 1367 | break; |
db432b41 MB |
1368 | } |
1369 | ||
05623c43 MB |
1370 | if (power) |
1371 | dapm_seq_insert(w, up_list, true); | |
1372 | else | |
1373 | dapm_seq_insert(w, down_list, false); | |
1374 | ||
1375 | w->power = power; | |
1376 | } | |
1377 | ||
7c81beb0 MB |
1378 | static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, |
1379 | struct list_head *up_list, | |
1380 | struct list_head *down_list) | |
1381 | { | |
7c81beb0 MB |
1382 | int power; |
1383 | ||
1384 | switch (w->id) { | |
1385 | case snd_soc_dapm_pre: | |
1386 | dapm_seq_insert(w, down_list, false); | |
1387 | break; | |
1388 | case snd_soc_dapm_post: | |
1389 | dapm_seq_insert(w, up_list, true); | |
1390 | break; | |
1391 | ||
1392 | default: | |
d805002b | 1393 | power = dapm_widget_power_check(w); |
7c81beb0 | 1394 | |
05623c43 | 1395 | dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb0 MB |
1396 | break; |
1397 | } | |
1398 | } | |
1399 | ||
2b97eabc RP |
1400 | /* |
1401 | * Scan each dapm widget for complete audio path. | |
1402 | * A complete path is a route that has valid endpoints i.e.:- | |
1403 | * | |
1404 | * o DAC to output pin. | |
1405 | * o Input Pin to ADC. | |
1406 | * o Input pin to Output pin (bypass, sidetone) | |
1407 | * o DAC to ADC (loopback). | |
1408 | */ | |
ce6120cc | 1409 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc | 1410 | { |
12ea2c78 | 1411 | struct snd_soc_card *card = dapm->card; |
2b97eabc | 1412 | struct snd_soc_dapm_widget *w; |
7be31be8 | 1413 | struct snd_soc_dapm_context *d; |
291f3bbc MB |
1414 | LIST_HEAD(up_list); |
1415 | LIST_HEAD(down_list); | |
9d0624a7 | 1416 | LIST_HEAD(async_domain); |
56fba41f | 1417 | enum snd_soc_bias_level bias; |
6d3ddc81 | 1418 | |
84e90930 MB |
1419 | trace_snd_soc_dapm_start(card); |
1420 | ||
56fba41f MB |
1421 | list_for_each_entry(d, &card->dapm_list, list) { |
1422 | if (d->n_widgets || d->codec == NULL) { | |
1423 | if (d->idle_bias_off) | |
1424 | d->target_bias_level = SND_SOC_BIAS_OFF; | |
1425 | else | |
1426 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1427 | } | |
1428 | } | |
7be31be8 | 1429 | |
6c120e19 | 1430 | dapm_reset(card); |
9b8a83b2 | 1431 | |
6d3ddc81 | 1432 | /* Check which widgets we need to power and store them in |
db432b41 MB |
1433 | * lists indicating if they should be powered up or down. We |
1434 | * only check widgets that have been flagged as dirty but note | |
1435 | * that new widgets may be added to the dirty list while we | |
1436 | * iterate. | |
6d3ddc81 | 1437 | */ |
db432b41 | 1438 | list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb0 | 1439 | dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc RP |
1440 | } |
1441 | ||
f9de6d74 | 1442 | list_for_each_entry(w, &card->widgets, list) { |
db432b41 MB |
1443 | list_del_init(&w->dirty); |
1444 | ||
f9de6d74 MB |
1445 | if (w->power) { |
1446 | d = w->dapm; | |
1447 | ||
1448 | /* Supplies and micbiases only bring the | |
1449 | * context up to STANDBY as unless something | |
1450 | * else is active and passing audio they | |
afe62367 MB |
1451 | * generally don't require full power. Signal |
1452 | * generators are virtual pins and have no | |
1453 | * power impact themselves. | |
f9de6d74 MB |
1454 | */ |
1455 | switch (w->id) { | |
afe62367 MB |
1456 | case snd_soc_dapm_siggen: |
1457 | break; | |
f9de6d74 | 1458 | case snd_soc_dapm_supply: |
62ea874a | 1459 | case snd_soc_dapm_regulator_supply: |
f9de6d74 MB |
1460 | case snd_soc_dapm_micbias: |
1461 | if (d->target_bias_level < SND_SOC_BIAS_STANDBY) | |
1462 | d->target_bias_level = SND_SOC_BIAS_STANDBY; | |
1463 | break; | |
1464 | default: | |
1465 | d->target_bias_level = SND_SOC_BIAS_ON; | |
1466 | break; | |
1467 | } | |
1468 | } | |
1469 | ||
1470 | } | |
1471 | ||
b14b76a5 MB |
1472 | /* If there are no DAPM widgets then try to figure out power from the |
1473 | * event type. | |
1474 | */ | |
97c866de | 1475 | if (!dapm->n_widgets) { |
b14b76a5 MB |
1476 | switch (event) { |
1477 | case SND_SOC_DAPM_STREAM_START: | |
1478 | case SND_SOC_DAPM_STREAM_RESUME: | |
56fba41f | 1479 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
b14b76a5 | 1480 | break; |
862af8ad | 1481 | case SND_SOC_DAPM_STREAM_STOP: |
e7c80e2a | 1482 | if (dapm->codec && dapm->codec->active) |
56fba41f MB |
1483 | dapm->target_bias_level = SND_SOC_BIAS_ON; |
1484 | else | |
1485 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; | |
862af8ad | 1486 | break; |
50b6bce5 | 1487 | case SND_SOC_DAPM_STREAM_SUSPEND: |
56fba41f | 1488 | dapm->target_bias_level = SND_SOC_BIAS_STANDBY; |
50b6bce5 | 1489 | break; |
b14b76a5 | 1490 | case SND_SOC_DAPM_STREAM_NOP: |
56fba41f | 1491 | dapm->target_bias_level = dapm->bias_level; |
50b6bce5 | 1492 | break; |
b14b76a5 MB |
1493 | default: |
1494 | break; | |
1495 | } | |
1496 | } | |
1497 | ||
85a843c5 MB |
1498 | /* Force all contexts in the card to the same bias state if |
1499 | * they're not ground referenced. | |
1500 | */ | |
56fba41f | 1501 | bias = SND_SOC_BIAS_OFF; |
52ba67bf | 1502 | list_for_each_entry(d, &card->dapm_list, list) |
56fba41f MB |
1503 | if (d->target_bias_level > bias) |
1504 | bias = d->target_bias_level; | |
52ba67bf | 1505 | list_for_each_entry(d, &card->dapm_list, list) |
85a843c5 MB |
1506 | if (!d->idle_bias_off) |
1507 | d->target_bias_level = bias; | |
52ba67bf | 1508 | |
de02d078 | 1509 | trace_snd_soc_dapm_walk_done(card); |
52ba67bf | 1510 | |
9d0624a7 MB |
1511 | /* Run all the bias changes in parallel */ |
1512 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1513 | async_schedule_domain(dapm_pre_sequence_async, d, | |
1514 | &async_domain); | |
1515 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1516 | |
6d3ddc81 | 1517 | /* Power down widgets first; try to avoid amplifying pops. */ |
828a842f | 1518 | dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc | 1519 | |
97404f2e MB |
1520 | dapm_widget_update(dapm); |
1521 | ||
6d3ddc81 | 1522 | /* Now power up. */ |
828a842f | 1523 | dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc | 1524 | |
9d0624a7 MB |
1525 | /* Run all the bias changes in parallel */ |
1526 | list_for_each_entry(d, &dapm->card->dapm_list, list) | |
1527 | async_schedule_domain(dapm_post_sequence_async, d, | |
1528 | &async_domain); | |
1529 | async_synchronize_full_domain(&async_domain); | |
452c5eaa | 1530 | |
8078d87f LG |
1531 | /* do we need to notify any clients that DAPM event is complete */ |
1532 | list_for_each_entry(d, &card->dapm_list, list) { | |
1533 | if (d->stream_event) | |
1534 | d->stream_event(d, event); | |
1535 | } | |
1536 | ||
fd8d3bc0 JN |
1537 | pop_dbg(dapm->dev, card->pop_time, |
1538 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); | |
3a45b867 | 1539 | pop_wait(card->pop_time); |
cb507e7e | 1540 | |
84e90930 MB |
1541 | trace_snd_soc_dapm_done(card); |
1542 | ||
42aa3418 | 1543 | return 0; |
2b97eabc RP |
1544 | } |
1545 | ||
79fb9387 MB |
1546 | #ifdef CONFIG_DEBUG_FS |
1547 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) | |
1548 | { | |
1549 | file->private_data = inode->i_private; | |
1550 | return 0; | |
1551 | } | |
1552 | ||
1553 | static ssize_t dapm_widget_power_read_file(struct file *file, | |
1554 | char __user *user_buf, | |
1555 | size_t count, loff_t *ppos) | |
1556 | { | |
1557 | struct snd_soc_dapm_widget *w = file->private_data; | |
1558 | char *buf; | |
1559 | int in, out; | |
1560 | ssize_t ret; | |
1561 | struct snd_soc_dapm_path *p = NULL; | |
1562 | ||
1563 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); | |
1564 | if (!buf) | |
1565 | return -ENOMEM; | |
1566 | ||
1567 | in = is_connected_input_ep(w); | |
ce6120cc | 1568 | dapm_clear_walk(w->dapm); |
79fb9387 | 1569 | out = is_connected_output_ep(w); |
ce6120cc | 1570 | dapm_clear_walk(w->dapm); |
79fb9387 | 1571 | |
d033c36a | 1572 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387 MB |
1573 | w->name, w->power ? "On" : "Off", in, out); |
1574 | ||
d033c36a MB |
1575 | if (w->reg >= 0) |
1576 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
1577 | " - R%d(0x%x) bit %d", | |
1578 | w->reg, w->reg, w->shift); | |
1579 | ||
1580 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); | |
1581 | ||
3eef08ba MB |
1582 | if (w->sname) |
1583 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", | |
1584 | w->sname, | |
1585 | w->active ? "active" : "inactive"); | |
79fb9387 MB |
1586 | |
1587 | list_for_each_entry(p, &w->sources, list_sink) { | |
215edda3 MB |
1588 | if (p->connected && !p->connected(w, p->sink)) |
1589 | continue; | |
1590 | ||
79fb9387 MB |
1591 | if (p->connect) |
1592 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1593 | " in \"%s\" \"%s\"\n", |
79fb9387 MB |
1594 | p->name ? p->name : "static", |
1595 | p->source->name); | |
1596 | } | |
1597 | list_for_each_entry(p, &w->sinks, list_source) { | |
215edda3 MB |
1598 | if (p->connected && !p->connected(w, p->sink)) |
1599 | continue; | |
1600 | ||
79fb9387 MB |
1601 | if (p->connect) |
1602 | ret += snprintf(buf + ret, PAGE_SIZE - ret, | |
67f5ed6e | 1603 | " out \"%s\" \"%s\"\n", |
79fb9387 MB |
1604 | p->name ? p->name : "static", |
1605 | p->sink->name); | |
1606 | } | |
1607 | ||
1608 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); | |
1609 | ||
1610 | kfree(buf); | |
1611 | return ret; | |
1612 | } | |
1613 | ||
1614 | static const struct file_operations dapm_widget_power_fops = { | |
1615 | .open = dapm_widget_power_open_file, | |
1616 | .read = dapm_widget_power_read_file, | |
6038f373 | 1617 | .llseek = default_llseek, |
79fb9387 MB |
1618 | }; |
1619 | ||
ef49e4fa MB |
1620 | static int dapm_bias_open_file(struct inode *inode, struct file *file) |
1621 | { | |
1622 | file->private_data = inode->i_private; | |
1623 | return 0; | |
1624 | } | |
1625 | ||
1626 | static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, | |
1627 | size_t count, loff_t *ppos) | |
1628 | { | |
1629 | struct snd_soc_dapm_context *dapm = file->private_data; | |
1630 | char *level; | |
1631 | ||
1632 | switch (dapm->bias_level) { | |
1633 | case SND_SOC_BIAS_ON: | |
1634 | level = "On\n"; | |
1635 | break; | |
1636 | case SND_SOC_BIAS_PREPARE: | |
1637 | level = "Prepare\n"; | |
1638 | break; | |
1639 | case SND_SOC_BIAS_STANDBY: | |
1640 | level = "Standby\n"; | |
1641 | break; | |
1642 | case SND_SOC_BIAS_OFF: | |
1643 | level = "Off\n"; | |
1644 | break; | |
1645 | default: | |
1646 | BUG(); | |
1647 | level = "Unknown\n"; | |
1648 | break; | |
1649 | } | |
1650 | ||
1651 | return simple_read_from_buffer(user_buf, count, ppos, level, | |
1652 | strlen(level)); | |
1653 | } | |
1654 | ||
1655 | static const struct file_operations dapm_bias_fops = { | |
1656 | .open = dapm_bias_open_file, | |
1657 | .read = dapm_bias_read_file, | |
1658 | .llseek = default_llseek, | |
1659 | }; | |
1660 | ||
8eecaf62 LPC |
1661 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1662 | struct dentry *parent) | |
79fb9387 | 1663 | { |
79fb9387 MB |
1664 | struct dentry *d; |
1665 | ||
8eecaf62 LPC |
1666 | dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); |
1667 | ||
1668 | if (!dapm->debugfs_dapm) { | |
1669 | printk(KERN_WARNING | |
1670 | "Failed to create DAPM debugfs directory\n"); | |
79fb9387 | 1671 | return; |
8eecaf62 | 1672 | } |
79fb9387 | 1673 | |
ef49e4fa MB |
1674 | d = debugfs_create_file("bias_level", 0444, |
1675 | dapm->debugfs_dapm, dapm, | |
1676 | &dapm_bias_fops); | |
1677 | if (!d) | |
1678 | dev_warn(dapm->dev, | |
1679 | "ASoC: Failed to create bias level debugfs file\n"); | |
d5d1e0be | 1680 | } |
ef49e4fa | 1681 | |
d5d1e0be LPC |
1682 | static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) |
1683 | { | |
1684 | struct snd_soc_dapm_context *dapm = w->dapm; | |
1685 | struct dentry *d; | |
79fb9387 | 1686 | |
d5d1e0be LPC |
1687 | if (!dapm->debugfs_dapm || !w->name) |
1688 | return; | |
1689 | ||
1690 | d = debugfs_create_file(w->name, 0444, | |
1691 | dapm->debugfs_dapm, w, | |
1692 | &dapm_widget_power_fops); | |
1693 | if (!d) | |
1694 | dev_warn(w->dapm->dev, | |
1695 | "ASoC: Failed to create %s debugfs file\n", | |
1696 | w->name); | |
79fb9387 | 1697 | } |
d5d1e0be | 1698 | |
6c45e126 LPC |
1699 | static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1700 | { | |
1701 | debugfs_remove_recursive(dapm->debugfs_dapm); | |
1702 | } | |
1703 | ||
79fb9387 | 1704 | #else |
8eecaf62 LPC |
1705 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, |
1706 | struct dentry *parent) | |
79fb9387 MB |
1707 | { |
1708 | } | |
d5d1e0be LPC |
1709 | |
1710 | static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) | |
1711 | { | |
1712 | } | |
1713 | ||
6c45e126 LPC |
1714 | static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) |
1715 | { | |
1716 | } | |
1717 | ||
79fb9387 MB |
1718 | #endif |
1719 | ||
2b97eabc | 1720 | /* test and update the power status of a mux widget */ |
40f02cd9 LG |
1721 | int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
1722 | struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) | |
2b97eabc RP |
1723 | { |
1724 | struct snd_soc_dapm_path *path; | |
1725 | int found = 0; | |
1726 | ||
eff317d0 | 1727 | if (widget->id != snd_soc_dapm_mux && |
24ff33ac | 1728 | widget->id != snd_soc_dapm_virt_mux && |
eff317d0 | 1729 | widget->id != snd_soc_dapm_value_mux) |
2b97eabc RP |
1730 | return -ENODEV; |
1731 | ||
2b97eabc | 1732 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1733 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1734 | if (path->kcontrol != kcontrol) |
1735 | continue; | |
1736 | ||
cb01e2b9 | 1737 | if (!path->name || !e->texts[mux]) |
2b97eabc RP |
1738 | continue; |
1739 | ||
1740 | found = 1; | |
1741 | /* we now need to match the string in the enum to the path */ | |
db432b41 | 1742 | if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc | 1743 | path->connect = 1; /* new connection */ |
75c1f891 | 1744 | dapm_mark_dirty(path->source, "mux connection"); |
db432b41 MB |
1745 | } else { |
1746 | if (path->connect) | |
75c1f891 MB |
1747 | dapm_mark_dirty(path->source, |
1748 | "mux disconnection"); | |
2b97eabc | 1749 | path->connect = 0; /* old connection must be powered down */ |
db432b41 | 1750 | } |
2b97eabc RP |
1751 | } |
1752 | ||
db432b41 | 1753 | if (found) { |
75c1f891 | 1754 | dapm_mark_dirty(widget, "mux change"); |
ce6120cc | 1755 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1756 | } |
2b97eabc RP |
1757 | |
1758 | return 0; | |
1759 | } | |
40f02cd9 | 1760 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); |
2b97eabc | 1761 | |
1b075e3f | 1762 | /* test and update the power status of a mixer or switch widget */ |
40f02cd9 | 1763 | int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375ce | 1764 | struct snd_kcontrol *kcontrol, int connect) |
2b97eabc RP |
1765 | { |
1766 | struct snd_soc_dapm_path *path; | |
1767 | int found = 0; | |
1768 | ||
1b075e3f | 1769 | if (widget->id != snd_soc_dapm_mixer && |
ca9c1aae | 1770 | widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f | 1771 | widget->id != snd_soc_dapm_switch) |
2b97eabc RP |
1772 | return -ENODEV; |
1773 | ||
2b97eabc | 1774 | /* find dapm widget path assoc with kcontrol */ |
8ddab3f5 | 1775 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc RP |
1776 | if (path->kcontrol != kcontrol) |
1777 | continue; | |
1778 | ||
1779 | /* found, now check type */ | |
1780 | found = 1; | |
283375ce | 1781 | path->connect = connect; |
75c1f891 | 1782 | dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc RP |
1783 | } |
1784 | ||
db432b41 | 1785 | if (found) { |
75c1f891 | 1786 | dapm_mark_dirty(widget, "mixer update"); |
ce6120cc | 1787 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b41 | 1788 | } |
2b97eabc RP |
1789 | |
1790 | return 0; | |
1791 | } | |
40f02cd9 | 1792 | EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); |
2b97eabc RP |
1793 | |
1794 | /* show dapm widget status in sys fs */ | |
1795 | static ssize_t dapm_widget_show(struct device *dev, | |
1796 | struct device_attribute *attr, char *buf) | |
1797 | { | |
36ae1a96 | 1798 | struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad | 1799 | struct snd_soc_codec *codec =rtd->codec; |
2b97eabc RP |
1800 | struct snd_soc_dapm_widget *w; |
1801 | int count = 0; | |
1802 | char *state = "not set"; | |
1803 | ||
97c866de JN |
1804 | list_for_each_entry(w, &codec->card->widgets, list) { |
1805 | if (w->dapm != &codec->dapm) | |
1806 | continue; | |
2b97eabc RP |
1807 | |
1808 | /* only display widgets that burnm power */ | |
1809 | switch (w->id) { | |
1810 | case snd_soc_dapm_hp: | |
1811 | case snd_soc_dapm_mic: | |
1812 | case snd_soc_dapm_spk: | |
1813 | case snd_soc_dapm_line: | |
1814 | case snd_soc_dapm_micbias: | |
1815 | case snd_soc_dapm_dac: | |
1816 | case snd_soc_dapm_adc: | |
1817 | case snd_soc_dapm_pga: | |
d88429a6 | 1818 | case snd_soc_dapm_out_drv: |
2b97eabc | 1819 | case snd_soc_dapm_mixer: |
ca9c1aae | 1820 | case snd_soc_dapm_mixer_named_ctl: |
246d0a17 | 1821 | case snd_soc_dapm_supply: |
62ea874a | 1822 | case snd_soc_dapm_regulator_supply: |
2b97eabc RP |
1823 | if (w->name) |
1824 | count += sprintf(buf + count, "%s: %s\n", | |
1825 | w->name, w->power ? "On":"Off"); | |
1826 | break; | |
1827 | default: | |
1828 | break; | |
1829 | } | |
1830 | } | |
1831 | ||
ce6120cc | 1832 | switch (codec->dapm.bias_level) { |
0be9898a MB |
1833 | case SND_SOC_BIAS_ON: |
1834 | state = "On"; | |
2b97eabc | 1835 | break; |
0be9898a MB |
1836 | case SND_SOC_BIAS_PREPARE: |
1837 | state = "Prepare"; | |
2b97eabc | 1838 | break; |
0be9898a MB |
1839 | case SND_SOC_BIAS_STANDBY: |
1840 | state = "Standby"; | |
2b97eabc | 1841 | break; |
0be9898a MB |
1842 | case SND_SOC_BIAS_OFF: |
1843 | state = "Off"; | |
2b97eabc RP |
1844 | break; |
1845 | } | |
1846 | count += sprintf(buf + count, "PM State: %s\n", state); | |
1847 | ||
1848 | return count; | |
1849 | } | |
1850 | ||
1851 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); | |
1852 | ||
1853 | int snd_soc_dapm_sys_add(struct device *dev) | |
1854 | { | |
12ef193d | 1855 | return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1856 | } |
1857 | ||
1858 | static void snd_soc_dapm_sys_remove(struct device *dev) | |
1859 | { | |
aef90843 | 1860 | device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc RP |
1861 | } |
1862 | ||
1863 | /* free all dapm widgets and resources */ | |
ce6120cc | 1864 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
1865 | { |
1866 | struct snd_soc_dapm_widget *w, *next_w; | |
1867 | struct snd_soc_dapm_path *p, *next_p; | |
1868 | ||
97c866de JN |
1869 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
1870 | if (w->dapm != dapm) | |
1871 | continue; | |
2b97eabc | 1872 | list_del(&w->list); |
8ddab3f5 JN |
1873 | /* |
1874 | * remove source and sink paths associated to this widget. | |
1875 | * While removing the path, remove reference to it from both | |
1876 | * source and sink widgets so that path is removed only once. | |
1877 | */ | |
1878 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { | |
1879 | list_del(&p->list_sink); | |
1880 | list_del(&p->list_source); | |
1881 | list_del(&p->list); | |
1882 | kfree(p->long_name); | |
1883 | kfree(p); | |
1884 | } | |
1885 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { | |
1886 | list_del(&p->list_sink); | |
1887 | list_del(&p->list_source); | |
1888 | list_del(&p->list); | |
1889 | kfree(p->long_name); | |
1890 | kfree(p); | |
1891 | } | |
fad59888 | 1892 | kfree(w->kcontrols); |
ead9b919 | 1893 | kfree(w->name); |
2b97eabc RP |
1894 | kfree(w); |
1895 | } | |
2b97eabc RP |
1896 | } |
1897 | ||
91a5fca4 LPC |
1898 | static struct snd_soc_dapm_widget *dapm_find_widget( |
1899 | struct snd_soc_dapm_context *dapm, const char *pin, | |
1900 | bool search_other_contexts) | |
a5302181 LG |
1901 | { |
1902 | struct snd_soc_dapm_widget *w; | |
91a5fca4 | 1903 | struct snd_soc_dapm_widget *fallback = NULL; |
a5302181 | 1904 | |
97c866de | 1905 | list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181 | 1906 | if (!strcmp(w->name, pin)) { |
91a5fca4 LPC |
1907 | if (w->dapm == dapm) |
1908 | return w; | |
1909 | else | |
1910 | fallback = w; | |
a5302181 LG |
1911 | } |
1912 | } | |
1913 | ||
91a5fca4 LPC |
1914 | if (search_other_contexts) |
1915 | return fallback; | |
1916 | ||
1917 | return NULL; | |
1918 | } | |
1919 | ||
1920 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, | |
1921 | const char *pin, int status) | |
1922 | { | |
1923 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); | |
1924 | ||
1925 | if (!w) { | |
1926 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
1927 | return -EINVAL; | |
0d86733c MB |
1928 | } |
1929 | ||
91a5fca4 LPC |
1930 | w->connected = status; |
1931 | if (status == 0) | |
1932 | w->force = 0; | |
75c1f891 | 1933 | dapm_mark_dirty(w, "pin configuration"); |
91a5fca4 LPC |
1934 | |
1935 | return 0; | |
a5302181 LG |
1936 | } |
1937 | ||
2b97eabc | 1938 | /** |
a5302181 | 1939 | * snd_soc_dapm_sync - scan and power dapm paths |
ce6120cc | 1940 | * @dapm: DAPM context |
2b97eabc RP |
1941 | * |
1942 | * Walks all dapm audio paths and powers widgets according to their | |
1943 | * stream or path usage. | |
1944 | * | |
1945 | * Returns 0 for success. | |
1946 | */ | |
ce6120cc | 1947 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc | 1948 | { |
4f4c0072 MB |
1949 | /* |
1950 | * Suppress early reports (eg, jacks syncing their state) to avoid | |
1951 | * silly DAPM runs during card startup. | |
1952 | */ | |
1953 | if (!dapm->card || !dapm->card->instantiated) | |
1954 | return 0; | |
1955 | ||
ce6120cc | 1956 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc | 1957 | } |
a5302181 | 1958 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc | 1959 | |
ce6120cc | 1960 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3 | 1961 | const struct snd_soc_dapm_route *route) |
2b97eabc RP |
1962 | { |
1963 | struct snd_soc_dapm_path *path; | |
1964 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; | |
97c866de | 1965 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b919 | 1966 | const char *sink; |
215edda3 | 1967 | const char *control = route->control; |
ead9b919 JN |
1968 | const char *source; |
1969 | char prefixed_sink[80]; | |
1970 | char prefixed_source[80]; | |
2b97eabc RP |
1971 | int ret = 0; |
1972 | ||
88e8b9a8 | 1973 | if (dapm->codec && dapm->codec->name_prefix) { |
ead9b919 JN |
1974 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
1975 | dapm->codec->name_prefix, route->sink); | |
1976 | sink = prefixed_sink; | |
1977 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", | |
1978 | dapm->codec->name_prefix, route->source); | |
1979 | source = prefixed_source; | |
1980 | } else { | |
1981 | sink = route->sink; | |
1982 | source = route->source; | |
1983 | } | |
1984 | ||
97c866de JN |
1985 | /* |
1986 | * find src and dest widgets over all widgets but favor a widget from | |
1987 | * current DAPM context | |
1988 | */ | |
1989 | list_for_each_entry(w, &dapm->card->widgets, list) { | |
2b97eabc | 1990 | if (!wsink && !(strcmp(w->name, sink))) { |
97c866de JN |
1991 | wtsink = w; |
1992 | if (w->dapm == dapm) | |
1993 | wsink = w; | |
2b97eabc RP |
1994 | continue; |
1995 | } | |
1996 | if (!wsource && !(strcmp(w->name, source))) { | |
97c866de JN |
1997 | wtsource = w; |
1998 | if (w->dapm == dapm) | |
1999 | wsource = w; | |
2b97eabc RP |
2000 | } |
2001 | } | |
97c866de JN |
2002 | /* use widget from another DAPM context if not found from this */ |
2003 | if (!wsink) | |
2004 | wsink = wtsink; | |
2005 | if (!wsource) | |
2006 | wsource = wtsource; | |
2b97eabc RP |
2007 | |
2008 | if (wsource == NULL || wsink == NULL) | |
2009 | return -ENODEV; | |
2010 | ||
2011 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); | |
2012 | if (!path) | |
2013 | return -ENOMEM; | |
2014 | ||
2015 | path->source = wsource; | |
2016 | path->sink = wsink; | |
215edda3 | 2017 | path->connected = route->connected; |
2b97eabc RP |
2018 | INIT_LIST_HEAD(&path->list); |
2019 | INIT_LIST_HEAD(&path->list_source); | |
2020 | INIT_LIST_HEAD(&path->list_sink); | |
2021 | ||
2022 | /* check for external widgets */ | |
2023 | if (wsink->id == snd_soc_dapm_input) { | |
2024 | if (wsource->id == snd_soc_dapm_micbias || | |
2025 | wsource->id == snd_soc_dapm_mic || | |
087d53ab RC |
2026 | wsource->id == snd_soc_dapm_line || |
2027 | wsource->id == snd_soc_dapm_output) | |
2b97eabc RP |
2028 | wsink->ext = 1; |
2029 | } | |
2030 | if (wsource->id == snd_soc_dapm_output) { | |
2031 | if (wsink->id == snd_soc_dapm_spk || | |
2032 | wsink->id == snd_soc_dapm_hp || | |
1e39221e SF |
2033 | wsink->id == snd_soc_dapm_line || |
2034 | wsink->id == snd_soc_dapm_input) | |
2b97eabc RP |
2035 | wsource->ext = 1; |
2036 | } | |
2037 | ||
2038 | /* connect static paths */ | |
2039 | if (control == NULL) { | |
8ddab3f5 | 2040 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2041 | list_add(&path->list_sink, &wsink->sources); |
2042 | list_add(&path->list_source, &wsource->sinks); | |
2043 | path->connect = 1; | |
2044 | return 0; | |
2045 | } | |
2046 | ||
2047 | /* connect dynamic paths */ | |
dc2bea61 | 2048 | switch (wsink->id) { |
2b97eabc RP |
2049 | case snd_soc_dapm_adc: |
2050 | case snd_soc_dapm_dac: | |
2051 | case snd_soc_dapm_pga: | |
d88429a6 | 2052 | case snd_soc_dapm_out_drv: |
2b97eabc RP |
2053 | case snd_soc_dapm_input: |
2054 | case snd_soc_dapm_output: | |
1ab97c8c | 2055 | case snd_soc_dapm_siggen: |
2b97eabc RP |
2056 | case snd_soc_dapm_micbias: |
2057 | case snd_soc_dapm_vmid: | |
2058 | case snd_soc_dapm_pre: | |
2059 | case snd_soc_dapm_post: | |
246d0a17 | 2060 | case snd_soc_dapm_supply: |
62ea874a | 2061 | case snd_soc_dapm_regulator_supply: |
010ff262 MB |
2062 | case snd_soc_dapm_aif_in: |
2063 | case snd_soc_dapm_aif_out: | |
888df395 | 2064 | case snd_soc_dapm_dai: |
8ddab3f5 | 2065 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2066 | list_add(&path->list_sink, &wsink->sources); |
2067 | list_add(&path->list_source, &wsource->sinks); | |
2068 | path->connect = 1; | |
2069 | return 0; | |
2070 | case snd_soc_dapm_mux: | |
24ff33ac | 2071 | case snd_soc_dapm_virt_mux: |
74155556 | 2072 | case snd_soc_dapm_value_mux: |
ce6120cc | 2073 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc | 2074 | &wsink->kcontrol_news[0]); |
2b97eabc RP |
2075 | if (ret != 0) |
2076 | goto err; | |
2077 | break; | |
2078 | case snd_soc_dapm_switch: | |
2079 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2080 | case snd_soc_dapm_mixer_named_ctl: |
ce6120cc | 2081 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc RP |
2082 | if (ret != 0) |
2083 | goto err; | |
2084 | break; | |
2085 | case snd_soc_dapm_hp: | |
2086 | case snd_soc_dapm_mic: | |
2087 | case snd_soc_dapm_line: | |
2088 | case snd_soc_dapm_spk: | |
8ddab3f5 | 2089 | list_add(&path->list, &dapm->card->paths); |
2b97eabc RP |
2090 | list_add(&path->list_sink, &wsink->sources); |
2091 | list_add(&path->list_source, &wsource->sinks); | |
2092 | path->connect = 0; | |
2093 | return 0; | |
2094 | } | |
2095 | return 0; | |
2096 | ||
2097 | err: | |
f7d41ae8 JN |
2098 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
2099 | source, control, sink); | |
2b97eabc RP |
2100 | kfree(path); |
2101 | return ret; | |
2102 | } | |
105f1c28 | 2103 | |
105f1c28 MB |
2104 | /** |
2105 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets | |
ce6120cc | 2106 | * @dapm: DAPM context |
105f1c28 MB |
2107 | * @route: audio routes |
2108 | * @num: number of routes | |
2109 | * | |
2110 | * Connects 2 dapm widgets together via a named audio path. The sink is | |
2111 | * the widget receiving the audio signal, whilst the source is the sender | |
2112 | * of the audio signal. | |
2113 | * | |
2114 | * Returns 0 for success else error. On error all resources can be freed | |
2115 | * with a call to snd_soc_card_free(). | |
2116 | */ | |
ce6120cc | 2117 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c28 MB |
2118 | const struct snd_soc_dapm_route *route, int num) |
2119 | { | |
2120 | int i, ret; | |
2121 | ||
2122 | for (i = 0; i < num; i++) { | |
ce6120cc | 2123 | ret = snd_soc_dapm_add_route(dapm, route); |
105f1c28 | 2124 | if (ret < 0) { |
f7d41ae8 JN |
2125 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
2126 | route->source, route->sink); | |
105f1c28 MB |
2127 | return ret; |
2128 | } | |
2129 | route++; | |
2130 | } | |
2131 | ||
2132 | return 0; | |
2133 | } | |
2134 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); | |
2135 | ||
bf3a9e13 MB |
2136 | static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, |
2137 | const struct snd_soc_dapm_route *route) | |
2138 | { | |
2139 | struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, | |
2140 | route->source, | |
2141 | true); | |
2142 | struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, | |
2143 | route->sink, | |
2144 | true); | |
2145 | struct snd_soc_dapm_path *path; | |
2146 | int count = 0; | |
2147 | ||
2148 | if (!source) { | |
2149 | dev_err(dapm->dev, "Unable to find source %s for weak route\n", | |
2150 | route->source); | |
2151 | return -ENODEV; | |
2152 | } | |
2153 | ||
2154 | if (!sink) { | |
2155 | dev_err(dapm->dev, "Unable to find sink %s for weak route\n", | |
2156 | route->sink); | |
2157 | return -ENODEV; | |
2158 | } | |
2159 | ||
2160 | if (route->control || route->connected) | |
2161 | dev_warn(dapm->dev, "Ignoring control for weak route %s->%s\n", | |
2162 | route->source, route->sink); | |
2163 | ||
2164 | list_for_each_entry(path, &source->sinks, list_source) { | |
2165 | if (path->sink == sink) { | |
2166 | path->weak = 1; | |
2167 | count++; | |
2168 | } | |
2169 | } | |
2170 | ||
2171 | if (count == 0) | |
2172 | dev_err(dapm->dev, "No path found for weak route %s->%s\n", | |
2173 | route->source, route->sink); | |
2174 | if (count > 1) | |
2175 | dev_warn(dapm->dev, "%d paths found for weak route %s->%s\n", | |
2176 | count, route->source, route->sink); | |
2177 | ||
2178 | return 0; | |
2179 | } | |
2180 | ||
2181 | /** | |
2182 | * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak | |
2183 | * @dapm: DAPM context | |
2184 | * @route: audio routes | |
2185 | * @num: number of routes | |
2186 | * | |
2187 | * Mark existing routes matching those specified in the passed array | |
2188 | * as being weak, meaning that they are ignored for the purpose of | |
2189 | * power decisions. The main intended use case is for sidetone paths | |
2190 | * which couple audio between other independent paths if they are both | |
2191 | * active in order to make the combination work better at the user | |
2192 | * level but which aren't intended to be "used". | |
2193 | * | |
2194 | * Note that CODEC drivers should not use this as sidetone type paths | |
2195 | * can frequently also be used as bypass paths. | |
2196 | */ | |
2197 | int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, | |
2198 | const struct snd_soc_dapm_route *route, int num) | |
2199 | { | |
2200 | int i, err; | |
2201 | int ret = 0; | |
2202 | ||
2203 | for (i = 0; i < num; i++) { | |
2204 | err = snd_soc_dapm_weak_route(dapm, route); | |
2205 | if (err) | |
2206 | ret = err; | |
2207 | route++; | |
2208 | } | |
2209 | ||
2210 | return ret; | |
2211 | } | |
2212 | EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); | |
2213 | ||
2b97eabc RP |
2214 | /** |
2215 | * snd_soc_dapm_new_widgets - add new dapm widgets | |
ce6120cc | 2216 | * @dapm: DAPM context |
2b97eabc RP |
2217 | * |
2218 | * Checks the codec for any new dapm widgets and creates them if found. | |
2219 | * | |
2220 | * Returns 0 for success. | |
2221 | */ | |
ce6120cc | 2222 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc RP |
2223 | { |
2224 | struct snd_soc_dapm_widget *w; | |
b66a70d5 | 2225 | unsigned int val; |
2b97eabc | 2226 | |
97c866de | 2227 | list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc RP |
2228 | { |
2229 | if (w->new) | |
2230 | continue; | |
2231 | ||
fad59888 SW |
2232 | if (w->num_kcontrols) { |
2233 | w->kcontrols = kzalloc(w->num_kcontrols * | |
2234 | sizeof(struct snd_kcontrol *), | |
2235 | GFP_KERNEL); | |
2236 | if (!w->kcontrols) | |
2237 | return -ENOMEM; | |
2238 | } | |
2239 | ||
2b97eabc RP |
2240 | switch(w->id) { |
2241 | case snd_soc_dapm_switch: | |
2242 | case snd_soc_dapm_mixer: | |
ca9c1aae | 2243 | case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2 | 2244 | dapm_new_mixer(w); |
2b97eabc RP |
2245 | break; |
2246 | case snd_soc_dapm_mux: | |
24ff33ac | 2247 | case snd_soc_dapm_virt_mux: |
2e72f8e3 | 2248 | case snd_soc_dapm_value_mux: |
4b80b8c2 | 2249 | dapm_new_mux(w); |
2b97eabc | 2250 | break; |
2b97eabc | 2251 | case snd_soc_dapm_pga: |
d88429a6 | 2252 | case snd_soc_dapm_out_drv: |
4b80b8c2 | 2253 | dapm_new_pga(w); |
2b97eabc | 2254 | break; |
7ca3a18b | 2255 | default: |
2b97eabc RP |
2256 | break; |
2257 | } | |
b66a70d5 MB |
2258 | |
2259 | /* Read the initial power state from the device */ | |
2260 | if (w->reg >= 0) { | |
0445bdf4 | 2261 | val = soc_widget_read(w, w->reg); |
b66a70d5 MB |
2262 | val &= 1 << w->shift; |
2263 | if (w->invert) | |
2264 | val = !val; | |
2265 | ||
2266 | if (val) | |
2267 | w->power = 1; | |
2268 | } | |
2269 | ||
2b97eabc | 2270 | w->new = 1; |
d5d1e0be | 2271 | |
7508b12a | 2272 | dapm_mark_dirty(w, "new widget"); |
d5d1e0be | 2273 | dapm_debugfs_add_widget(w); |
2b97eabc RP |
2274 | } |
2275 | ||
ce6120cc | 2276 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc RP |
2277 | return 0; |
2278 | } | |
2279 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); | |
2280 | ||
2281 | /** | |
2282 | * snd_soc_dapm_get_volsw - dapm mixer get callback | |
2283 | * @kcontrol: mixer control | |
ac11a2b3 | 2284 | * @ucontrol: control element information |
2b97eabc RP |
2285 | * |
2286 | * Callback to get the value of a dapm mixer control. | |
2287 | * | |
2288 | * Returns 0 for success. | |
2289 | */ | |
2290 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, | |
2291 | struct snd_ctl_elem_value *ucontrol) | |
2292 | { | |
fafd2176 SW |
2293 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2294 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
4eaa9819 JS |
2295 | struct soc_mixer_control *mc = |
2296 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2297 | unsigned int reg = mc->reg; |
2298 | unsigned int shift = mc->shift; | |
2299 | unsigned int rshift = mc->rshift; | |
4eaa9819 | 2300 | int max = mc->max; |
815ecf8d JS |
2301 | unsigned int invert = mc->invert; |
2302 | unsigned int mask = (1 << fls(max)) - 1; | |
2b97eabc | 2303 | |
2b97eabc RP |
2304 | ucontrol->value.integer.value[0] = |
2305 | (snd_soc_read(widget->codec, reg) >> shift) & mask; | |
2306 | if (shift != rshift) | |
2307 | ucontrol->value.integer.value[1] = | |
2308 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; | |
2309 | if (invert) { | |
2310 | ucontrol->value.integer.value[0] = | |
a7a4ac86 | 2311 | max - ucontrol->value.integer.value[0]; |
2b97eabc RP |
2312 | if (shift != rshift) |
2313 | ucontrol->value.integer.value[1] = | |
a7a4ac86 | 2314 | max - ucontrol->value.integer.value[1]; |
2b97eabc RP |
2315 | } |
2316 | ||
2317 | return 0; | |
2318 | } | |
2319 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); | |
2320 | ||
2321 | /** | |
2322 | * snd_soc_dapm_put_volsw - dapm mixer set callback | |
2323 | * @kcontrol: mixer control | |
ac11a2b3 | 2324 | * @ucontrol: control element information |
2b97eabc RP |
2325 | * |
2326 | * Callback to set the value of a dapm mixer control. | |
2327 | * | |
2328 | * Returns 0 for success. | |
2329 | */ | |
2330 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, | |
2331 | struct snd_ctl_elem_value *ucontrol) | |
2332 | { | |
fafd2176 SW |
2333 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2334 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2335 | struct snd_soc_codec *codec = widget->codec; | |
4eaa9819 JS |
2336 | struct soc_mixer_control *mc = |
2337 | (struct soc_mixer_control *)kcontrol->private_value; | |
815ecf8d JS |
2338 | unsigned int reg = mc->reg; |
2339 | unsigned int shift = mc->shift; | |
4eaa9819 | 2340 | int max = mc->max; |
815ecf8d JS |
2341 | unsigned int mask = (1 << fls(max)) - 1; |
2342 | unsigned int invert = mc->invert; | |
e9cf7049 | 2343 | unsigned int val; |
97404f2e MB |
2344 | int connect, change; |
2345 | struct snd_soc_dapm_update update; | |
fafd2176 | 2346 | int wi; |
2b97eabc RP |
2347 | |
2348 | val = (ucontrol->value.integer.value[0] & mask); | |
2349 | ||
2350 | if (invert) | |
a7a4ac86 | 2351 | val = max - val; |
e9cf7049 | 2352 | mask = mask << shift; |
2b97eabc | 2353 | val = val << shift; |
2b97eabc | 2354 | |
fafd2176 SW |
2355 | if (val) |
2356 | /* new connection */ | |
2357 | connect = invert ? 0 : 1; | |
2358 | else | |
2359 | /* old connection must be powered down */ | |
2360 | connect = invert ? 1 : 0; | |
2361 | ||
2362 | mutex_lock(&codec->mutex); | |
2b97eabc | 2363 | |
e9cf7049 | 2364 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e | 2365 | if (change) { |
fafd2176 SW |
2366 | for (wi = 0; wi < wlist->num_widgets; wi++) { |
2367 | widget = wlist->widgets[wi]; | |
283375ce | 2368 | |
fafd2176 | 2369 | widget->value = val; |
97404f2e | 2370 | |
fafd2176 SW |
2371 | update.kcontrol = kcontrol; |
2372 | update.widget = widget; | |
2373 | update.reg = reg; | |
2374 | update.mask = mask; | |
2375 | update.val = val; | |
2376 | widget->dapm->update = &update; | |
97404f2e | 2377 | |
40f02cd9 | 2378 | snd_soc_dapm_mixer_update_power(widget, kcontrol, connect); |
fafd2176 SW |
2379 | |
2380 | widget->dapm->update = NULL; | |
2381 | } | |
283375ce MB |
2382 | } |
2383 | ||
fafd2176 | 2384 | mutex_unlock(&codec->mutex); |
97404f2e | 2385 | return 0; |
2b97eabc RP |
2386 | } |
2387 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); | |
2388 | ||
2389 | /** | |
2390 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback | |
2391 | * @kcontrol: mixer control | |
ac11a2b3 | 2392 | * @ucontrol: control element information |
2b97eabc RP |
2393 | * |
2394 | * Callback to get the value of a dapm enumerated double mixer control. | |
2395 | * | |
2396 | * Returns 0 for success. | |
2397 | */ | |
2398 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, | |
2399 | struct snd_ctl_elem_value *ucontrol) | |
2400 | { | |
fafd2176 SW |
2401 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2402 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2b97eabc | 2403 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2404 | unsigned int val, bitmask; |
2b97eabc | 2405 | |
f8ba0b7b | 2406 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc RP |
2407 | ; |
2408 | val = snd_soc_read(widget->codec, e->reg); | |
2409 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); | |
2410 | if (e->shift_l != e->shift_r) | |
2411 | ucontrol->value.enumerated.item[1] = | |
2412 | (val >> e->shift_r) & (bitmask - 1); | |
2413 | ||
2414 | return 0; | |
2415 | } | |
2416 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); | |
2417 | ||
2418 | /** | |
2419 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback | |
2420 | * @kcontrol: mixer control | |
ac11a2b3 | 2421 | * @ucontrol: control element information |
2b97eabc RP |
2422 | * |
2423 | * Callback to set the value of a dapm enumerated double mixer control. | |
2424 | * | |
2425 | * Returns 0 for success. | |
2426 | */ | |
2427 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, | |
2428 | struct snd_ctl_elem_value *ucontrol) | |
2429 | { | |
fafd2176 SW |
2430 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2431 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2432 | struct snd_soc_codec *codec = widget->codec; | |
2b97eabc | 2433 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2434 | unsigned int val, mux, change; |
46f5822f | 2435 | unsigned int mask, bitmask; |
97404f2e | 2436 | struct snd_soc_dapm_update update; |
fafd2176 | 2437 | int wi; |
2b97eabc | 2438 | |
f8ba0b7b | 2439 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc | 2440 | ; |
f8ba0b7b | 2441 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc RP |
2442 | return -EINVAL; |
2443 | mux = ucontrol->value.enumerated.item[0]; | |
2444 | val = mux << e->shift_l; | |
2445 | mask = (bitmask - 1) << e->shift_l; | |
2446 | if (e->shift_l != e->shift_r) { | |
f8ba0b7b | 2447 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc RP |
2448 | return -EINVAL; |
2449 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; | |
2450 | mask |= (bitmask - 1) << e->shift_r; | |
2451 | } | |
2452 | ||
fafd2176 SW |
2453 | mutex_lock(&codec->mutex); |
2454 | ||
3a65577d | 2455 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2456 | if (change) { |
2457 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2458 | widget = wlist->widgets[wi]; | |
2459 | ||
2460 | widget->value = val; | |
1642e3d4 | 2461 | |
fafd2176 SW |
2462 | update.kcontrol = kcontrol; |
2463 | update.widget = widget; | |
2464 | update.reg = e->reg; | |
2465 | update.mask = mask; | |
2466 | update.val = val; | |
2467 | widget->dapm->update = &update; | |
1642e3d4 | 2468 | |
40f02cd9 | 2469 | snd_soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
1642e3d4 | 2470 | |
fafd2176 SW |
2471 | widget->dapm->update = NULL; |
2472 | } | |
2473 | } | |
2b97eabc | 2474 | |
fafd2176 | 2475 | mutex_unlock(&codec->mutex); |
97404f2e | 2476 | return change; |
2b97eabc RP |
2477 | } |
2478 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); | |
2479 | ||
d2b247a8 MB |
2480 | /** |
2481 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux | |
2482 | * @kcontrol: mixer control | |
2483 | * @ucontrol: control element information | |
2484 | * | |
2485 | * Returns 0 for success. | |
2486 | */ | |
2487 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, | |
2488 | struct snd_ctl_elem_value *ucontrol) | |
2489 | { | |
fafd2176 SW |
2490 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2491 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
d2b247a8 MB |
2492 | |
2493 | ucontrol->value.enumerated.item[0] = widget->value; | |
2494 | ||
2495 | return 0; | |
2496 | } | |
2497 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); | |
2498 | ||
2499 | /** | |
2500 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux | |
2501 | * @kcontrol: mixer control | |
2502 | * @ucontrol: control element information | |
2503 | * | |
2504 | * Returns 0 for success. | |
2505 | */ | |
2506 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, | |
2507 | struct snd_ctl_elem_value *ucontrol) | |
2508 | { | |
fafd2176 SW |
2509 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2510 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2511 | struct snd_soc_codec *codec = widget->codec; | |
d2b247a8 MB |
2512 | struct soc_enum *e = |
2513 | (struct soc_enum *)kcontrol->private_value; | |
2514 | int change; | |
2515 | int ret = 0; | |
fafd2176 | 2516 | int wi; |
d2b247a8 MB |
2517 | |
2518 | if (ucontrol->value.enumerated.item[0] >= e->max) | |
2519 | return -EINVAL; | |
2520 | ||
fafd2176 | 2521 | mutex_lock(&codec->mutex); |
d2b247a8 MB |
2522 | |
2523 | change = widget->value != ucontrol->value.enumerated.item[0]; | |
fafd2176 SW |
2524 | if (change) { |
2525 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2526 | widget = wlist->widgets[wi]; | |
2527 | ||
2528 | widget->value = ucontrol->value.enumerated.item[0]; | |
2529 | ||
40f02cd9 | 2530 | snd_soc_dapm_mux_update_power(widget, kcontrol, widget->value, e); |
fafd2176 SW |
2531 | } |
2532 | } | |
d2b247a8 | 2533 | |
fafd2176 | 2534 | mutex_unlock(&codec->mutex); |
d2b247a8 MB |
2535 | return ret; |
2536 | } | |
2537 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); | |
2538 | ||
2e72f8e3 PU |
2539 | /** |
2540 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get | |
2541 | * callback | |
2542 | * @kcontrol: mixer control | |
2543 | * @ucontrol: control element information | |
2544 | * | |
2545 | * Callback to get the value of a dapm semi enumerated double mixer control. | |
2546 | * | |
2547 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2548 | * used for handling bitfield coded enumeration for example. | |
2549 | * | |
2550 | * Returns 0 for success. | |
2551 | */ | |
2552 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
2553 | struct snd_ctl_elem_value *ucontrol) | |
2554 | { | |
fafd2176 SW |
2555 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2556 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
74155556 | 2557 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f | 2558 | unsigned int reg_val, val, mux; |
2e72f8e3 PU |
2559 | |
2560 | reg_val = snd_soc_read(widget->codec, e->reg); | |
2561 | val = (reg_val >> e->shift_l) & e->mask; | |
2562 | for (mux = 0; mux < e->max; mux++) { | |
2563 | if (val == e->values[mux]) | |
2564 | break; | |
2565 | } | |
2566 | ucontrol->value.enumerated.item[0] = mux; | |
2567 | if (e->shift_l != e->shift_r) { | |
2568 | val = (reg_val >> e->shift_r) & e->mask; | |
2569 | for (mux = 0; mux < e->max; mux++) { | |
2570 | if (val == e->values[mux]) | |
2571 | break; | |
2572 | } | |
2573 | ucontrol->value.enumerated.item[1] = mux; | |
2574 | } | |
2575 | ||
2576 | return 0; | |
2577 | } | |
2578 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); | |
2579 | ||
2580 | /** | |
2581 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set | |
2582 | * callback | |
2583 | * @kcontrol: mixer control | |
2584 | * @ucontrol: control element information | |
2585 | * | |
2586 | * Callback to set the value of a dapm semi enumerated double mixer control. | |
2587 | * | |
2588 | * Semi enumerated mixer: the enumerated items are referred as values. Can be | |
2589 | * used for handling bitfield coded enumeration for example. | |
2590 | * | |
2591 | * Returns 0 for success. | |
2592 | */ | |
2593 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
2594 | struct snd_ctl_elem_value *ucontrol) | |
2595 | { | |
fafd2176 SW |
2596 | struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); |
2597 | struct snd_soc_dapm_widget *widget = wlist->widgets[0]; | |
2598 | struct snd_soc_codec *codec = widget->codec; | |
74155556 | 2599 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d | 2600 | unsigned int val, mux, change; |
46f5822f | 2601 | unsigned int mask; |
97404f2e | 2602 | struct snd_soc_dapm_update update; |
fafd2176 | 2603 | int wi; |
2e72f8e3 PU |
2604 | |
2605 | if (ucontrol->value.enumerated.item[0] > e->max - 1) | |
2606 | return -EINVAL; | |
2607 | mux = ucontrol->value.enumerated.item[0]; | |
2608 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; | |
2609 | mask = e->mask << e->shift_l; | |
2610 | if (e->shift_l != e->shift_r) { | |
2611 | if (ucontrol->value.enumerated.item[1] > e->max - 1) | |
2612 | return -EINVAL; | |
2613 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; | |
2614 | mask |= e->mask << e->shift_r; | |
2615 | } | |
2616 | ||
fafd2176 SW |
2617 | mutex_lock(&codec->mutex); |
2618 | ||
3a65577d | 2619 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176 SW |
2620 | if (change) { |
2621 | for (wi = 0; wi < wlist->num_widgets; wi++) { | |
2622 | widget = wlist->widgets[wi]; | |
1642e3d4 | 2623 | |
fafd2176 | 2624 | widget->value = val; |
1642e3d4 | 2625 | |
fafd2176 SW |
2626 | update.kcontrol = kcontrol; |
2627 | update.widget = widget; | |
2628 | update.reg = e->reg; | |
2629 | update.mask = mask; | |
2630 | update.val = val; | |
2631 | widget->dapm->update = &update; | |
1642e3d4 | 2632 | |
40f02cd9 | 2633 | snd_soc_dapm_mux_update_power(widget, kcontrol, mux, e); |
fafd2176 SW |
2634 | |
2635 | widget->dapm->update = NULL; | |
2636 | } | |
2637 | } | |
2e72f8e3 | 2638 | |
fafd2176 | 2639 | mutex_unlock(&codec->mutex); |
97404f2e | 2640 | return change; |
2e72f8e3 PU |
2641 | } |
2642 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); | |
2643 | ||
8b37dbd2 MB |
2644 | /** |
2645 | * snd_soc_dapm_info_pin_switch - Info for a pin switch | |
2646 | * | |
2647 | * @kcontrol: mixer control | |
2648 | * @uinfo: control element information | |
2649 | * | |
2650 | * Callback to provide information about a pin switch control. | |
2651 | */ | |
2652 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, | |
2653 | struct snd_ctl_elem_info *uinfo) | |
2654 | { | |
2655 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
2656 | uinfo->count = 1; | |
2657 | uinfo->value.integer.min = 0; | |
2658 | uinfo->value.integer.max = 1; | |
2659 | ||
2660 | return 0; | |
2661 | } | |
2662 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); | |
2663 | ||
2664 | /** | |
2665 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch | |
2666 | * | |
2667 | * @kcontrol: mixer control | |
2668 | * @ucontrol: Value | |
2669 | */ | |
2670 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, | |
2671 | struct snd_ctl_elem_value *ucontrol) | |
2672 | { | |
48a8c394 | 2673 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2674 | const char *pin = (const char *)kcontrol->private_value; |
2675 | ||
48a8c394 | 2676 | mutex_lock(&card->mutex); |
8b37dbd2 MB |
2677 | |
2678 | ucontrol->value.integer.value[0] = | |
48a8c394 | 2679 | snd_soc_dapm_get_pin_status(&card->dapm, pin); |
8b37dbd2 | 2680 | |
48a8c394 | 2681 | mutex_unlock(&card->mutex); |
8b37dbd2 MB |
2682 | |
2683 | return 0; | |
2684 | } | |
2685 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); | |
2686 | ||
2687 | /** | |
2688 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch | |
2689 | * | |
2690 | * @kcontrol: mixer control | |
2691 | * @ucontrol: Value | |
2692 | */ | |
2693 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, | |
2694 | struct snd_ctl_elem_value *ucontrol) | |
2695 | { | |
48a8c394 | 2696 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
8b37dbd2 MB |
2697 | const char *pin = (const char *)kcontrol->private_value; |
2698 | ||
48a8c394 | 2699 | mutex_lock(&card->mutex); |
8b37dbd2 MB |
2700 | |
2701 | if (ucontrol->value.integer.value[0]) | |
48a8c394 | 2702 | snd_soc_dapm_enable_pin(&card->dapm, pin); |
8b37dbd2 | 2703 | else |
48a8c394 | 2704 | snd_soc_dapm_disable_pin(&card->dapm, pin); |
8b37dbd2 | 2705 | |
48a8c394 | 2706 | snd_soc_dapm_sync(&card->dapm); |
8b37dbd2 | 2707 | |
48a8c394 | 2708 | mutex_unlock(&card->mutex); |
8b37dbd2 MB |
2709 | |
2710 | return 0; | |
2711 | } | |
2712 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); | |
2713 | ||
5ba06fc9 MB |
2714 | static struct snd_soc_dapm_widget * |
2715 | snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, | |
2716 | const struct snd_soc_dapm_widget *widget) | |
2b97eabc RP |
2717 | { |
2718 | struct snd_soc_dapm_widget *w; | |
ead9b919 | 2719 | size_t name_len; |
62ea874a | 2720 | int ret; |
2b97eabc RP |
2721 | |
2722 | if ((w = dapm_cnew_widget(widget)) == NULL) | |
5ba06fc9 | 2723 | return NULL; |
2b97eabc | 2724 | |
62ea874a MB |
2725 | switch (w->id) { |
2726 | case snd_soc_dapm_regulator_supply: | |
2727 | w->priv = devm_regulator_get(dapm->dev, w->name); | |
2728 | if (IS_ERR(w->priv)) { | |
2729 | ret = PTR_ERR(w->priv); | |
2730 | dev_err(dapm->dev, "Failed to request %s: %d\n", | |
2731 | w->name, ret); | |
5ba06fc9 | 2732 | return NULL; |
62ea874a MB |
2733 | } |
2734 | break; | |
2735 | default: | |
2736 | break; | |
2737 | } | |
2738 | ||
ead9b919 | 2739 | name_len = strlen(widget->name) + 1; |
88e8b9a8 | 2740 | if (dapm->codec && dapm->codec->name_prefix) |
ead9b919 JN |
2741 | name_len += 1 + strlen(dapm->codec->name_prefix); |
2742 | w->name = kmalloc(name_len, GFP_KERNEL); | |
2743 | if (w->name == NULL) { | |
2744 | kfree(w); | |
5ba06fc9 | 2745 | return NULL; |
ead9b919 | 2746 | } |
88e8b9a8 | 2747 | if (dapm->codec && dapm->codec->name_prefix) |
888df395 | 2748 | snprintf((char *)w->name, name_len, "%s %s", |
ead9b919 JN |
2749 | dapm->codec->name_prefix, widget->name); |
2750 | else | |
888df395 | 2751 | snprintf((char *)w->name, name_len, "%s", widget->name); |
ead9b919 | 2752 | |
7ca3a18b MB |
2753 | switch (w->id) { |
2754 | case snd_soc_dapm_switch: | |
2755 | case snd_soc_dapm_mixer: | |
2756 | case snd_soc_dapm_mixer_named_ctl: | |
2757 | w->power_check = dapm_generic_check_power; | |
2758 | break; | |
2759 | case snd_soc_dapm_mux: | |
2760 | case snd_soc_dapm_virt_mux: | |
2761 | case snd_soc_dapm_value_mux: | |
2762 | w->power_check = dapm_generic_check_power; | |
2763 | break; | |
2764 | case snd_soc_dapm_adc: | |
2765 | case snd_soc_dapm_aif_out: | |
2766 | w->power_check = dapm_adc_check_power; | |
2767 | break; | |
2768 | case snd_soc_dapm_dac: | |
2769 | case snd_soc_dapm_aif_in: | |
2770 | w->power_check = dapm_dac_check_power; | |
2771 | break; | |
2772 | case snd_soc_dapm_pga: | |
2773 | case snd_soc_dapm_out_drv: | |
2774 | case snd_soc_dapm_input: | |
2775 | case snd_soc_dapm_output: | |
2776 | case snd_soc_dapm_micbias: | |
2777 | case snd_soc_dapm_spk: | |
2778 | case snd_soc_dapm_hp: | |
2779 | case snd_soc_dapm_mic: | |
2780 | case snd_soc_dapm_line: | |
2781 | w->power_check = dapm_generic_check_power; | |
2782 | break; | |
2783 | case snd_soc_dapm_supply: | |
62ea874a | 2784 | case snd_soc_dapm_regulator_supply: |
7ca3a18b MB |
2785 | w->power_check = dapm_supply_check_power; |
2786 | break; | |
888df395 MB |
2787 | case snd_soc_dapm_dai: |
2788 | w->power_check = dapm_dai_check_power; | |
2789 | break; | |
7ca3a18b MB |
2790 | default: |
2791 | w->power_check = dapm_always_on_check_power; | |
2792 | break; | |
2793 | } | |
2794 | ||
97c866de | 2795 | dapm->n_widgets++; |
ce6120cc LG |
2796 | w->dapm = dapm; |
2797 | w->codec = dapm->codec; | |
b7950641 | 2798 | w->platform = dapm->platform; |
2b97eabc RP |
2799 | INIT_LIST_HEAD(&w->sources); |
2800 | INIT_LIST_HEAD(&w->sinks); | |
2801 | INIT_LIST_HEAD(&w->list); | |
db432b41 | 2802 | INIT_LIST_HEAD(&w->dirty); |
97c866de | 2803 | list_add(&w->list, &dapm->card->widgets); |
2b97eabc RP |
2804 | |
2805 | /* machine layer set ups unconnected pins and insertions */ | |
2806 | w->connected = 1; | |
5ba06fc9 | 2807 | return w; |
2b97eabc | 2808 | } |
2b97eabc | 2809 | |
4ba1327a MB |
2810 | /** |
2811 | * snd_soc_dapm_new_controls - create new dapm controls | |
ce6120cc | 2812 | * @dapm: DAPM context |
4ba1327a MB |
2813 | * @widget: widget array |
2814 | * @num: number of widgets | |
2815 | * | |
2816 | * Creates new DAPM controls based upon the templates. | |
2817 | * | |
2818 | * Returns 0 for success else error. | |
2819 | */ | |
ce6120cc | 2820 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327a MB |
2821 | const struct snd_soc_dapm_widget *widget, |
2822 | int num) | |
2823 | { | |
5ba06fc9 MB |
2824 | struct snd_soc_dapm_widget *w; |
2825 | int i; | |
4ba1327a MB |
2826 | |
2827 | for (i = 0; i < num; i++) { | |
5ba06fc9 MB |
2828 | w = snd_soc_dapm_new_control(dapm, widget); |
2829 | if (!w) { | |
f7d41ae8 | 2830 | dev_err(dapm->dev, |
5ba06fc9 MB |
2831 | "ASoC: Failed to create DAPM control %s\n", |
2832 | widget->name); | |
2833 | return -ENOMEM; | |
b8b33cb5 | 2834 | } |
4ba1327a MB |
2835 | widget++; |
2836 | } | |
2837 | return 0; | |
2838 | } | |
2839 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); | |
2840 | ||
888df395 MB |
2841 | int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, |
2842 | struct snd_soc_dai *dai) | |
2843 | { | |
2844 | struct snd_soc_dapm_widget template; | |
2845 | struct snd_soc_dapm_widget *w; | |
2846 | ||
2847 | WARN_ON(dapm->dev != dai->dev); | |
2848 | ||
2849 | memset(&template, 0, sizeof(template)); | |
2850 | template.reg = SND_SOC_NOPM; | |
2851 | ||
2852 | if (dai->driver->playback.stream_name) { | |
2853 | template.id = snd_soc_dapm_dai; | |
2854 | template.name = dai->driver->playback.stream_name; | |
2855 | template.sname = dai->driver->playback.stream_name; | |
2856 | ||
2857 | dev_dbg(dai->dev, "adding %s widget\n", | |
2858 | template.name); | |
2859 | ||
2860 | w = snd_soc_dapm_new_control(dapm, &template); | |
2861 | if (!w) { | |
2862 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
2863 | dai->driver->playback.stream_name); | |
2864 | } | |
2865 | ||
2866 | w->priv = dai; | |
2867 | dai->playback_widget = w; | |
2868 | } | |
2869 | ||
2870 | if (dai->driver->capture.stream_name) { | |
2871 | template.id = snd_soc_dapm_dai; | |
2872 | template.name = dai->driver->capture.stream_name; | |
2873 | template.sname = dai->driver->capture.stream_name; | |
2874 | ||
2875 | dev_dbg(dai->dev, "adding %s widget\n", | |
2876 | template.name); | |
2877 | ||
2878 | w = snd_soc_dapm_new_control(dapm, &template); | |
2879 | if (!w) { | |
2880 | dev_err(dapm->dev, "Failed to create %s widget\n", | |
2881 | dai->driver->capture.stream_name); | |
2882 | } | |
2883 | ||
2884 | w->priv = dai; | |
2885 | dai->capture_widget = w; | |
2886 | } | |
2887 | ||
2888 | return 0; | |
2889 | } | |
2890 | ||
2891 | int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) | |
2892 | { | |
2893 | struct snd_soc_dapm_widget *dai_w, *w; | |
2894 | struct snd_soc_dai *dai; | |
2895 | struct snd_soc_dapm_route r; | |
2896 | ||
2897 | memset(&r, 0, sizeof(r)); | |
2898 | ||
2899 | /* For each DAI widget... */ | |
2900 | list_for_each_entry(dai_w, &card->widgets, list) { | |
2901 | if (dai_w->id != snd_soc_dapm_dai) | |
2902 | continue; | |
2903 | ||
2904 | dai = dai_w->priv; | |
2905 | ||
2906 | /* ...find all widgets with the same stream and link them */ | |
2907 | list_for_each_entry(w, &card->widgets, list) { | |
2908 | if (w->dapm != dai_w->dapm) | |
2909 | continue; | |
2910 | ||
2911 | if (w->id == snd_soc_dapm_dai) | |
2912 | continue; | |
2913 | ||
2914 | if (!w->sname) | |
2915 | continue; | |
2916 | ||
2917 | if (dai->driver->playback.stream_name && | |
2918 | strstr(w->sname, | |
2919 | dai->driver->playback.stream_name)) { | |
2920 | r.source = dai->playback_widget->name; | |
2921 | r.sink = w->name; | |
2922 | dev_dbg(dai->dev, "%s -> %s\n", | |
2923 | r.source, r.sink); | |
2924 | ||
2925 | snd_soc_dapm_add_route(w->dapm, &r); | |
2926 | } | |
2927 | ||
2928 | if (dai->driver->capture.stream_name && | |
2929 | strstr(w->sname, | |
2930 | dai->driver->capture.stream_name)) { | |
2931 | r.source = w->name; | |
2932 | r.sink = dai->capture_widget->name; | |
2933 | dev_dbg(dai->dev, "%s -> %s\n", | |
2934 | r.source, r.sink); | |
2935 | ||
2936 | snd_soc_dapm_add_route(w->dapm, &r); | |
2937 | } | |
2938 | } | |
2939 | } | |
2940 | ||
2941 | return 0; | |
2942 | } | |
2943 | ||
ce6120cc | 2944 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
7bd3a6f3 MB |
2945 | int stream, struct snd_soc_dai *dai, |
2946 | int event) | |
2b97eabc RP |
2947 | { |
2948 | struct snd_soc_dapm_widget *w; | |
7bd3a6f3 MB |
2949 | |
2950 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
fe360685 | 2951 | w = dai->playback_widget; |
7bd3a6f3 | 2952 | else |
fe360685 | 2953 | w = dai->capture_widget; |
7bd3a6f3 | 2954 | |
fe360685 | 2955 | if (!w) |
7bd3a6f3 | 2956 | return; |
2b97eabc | 2957 | |
fe360685 MB |
2958 | dapm_mark_dirty(w, "stream event"); |
2959 | ||
2960 | switch (event) { | |
2961 | case SND_SOC_DAPM_STREAM_START: | |
2962 | w->active = 1; | |
2963 | break; | |
2964 | case SND_SOC_DAPM_STREAM_STOP: | |
2965 | w->active = 0; | |
2966 | break; | |
2967 | case SND_SOC_DAPM_STREAM_SUSPEND: | |
2968 | case SND_SOC_DAPM_STREAM_RESUME: | |
2969 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: | |
2970 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: | |
2971 | break; | |
2b97eabc | 2972 | } |
2b97eabc | 2973 | |
ce6120cc LG |
2974 | dapm_power_widgets(dapm, event); |
2975 | } | |
2976 | ||
2977 | /** | |
2978 | * snd_soc_dapm_stream_event - send a stream event to the dapm core | |
2979 | * @rtd: PCM runtime data | |
2980 | * @stream: stream name | |
2981 | * @event: stream event | |
2982 | * | |
2983 | * Sends a stream event to the dapm core. The core then makes any | |
2984 | * necessary widget power changes. | |
2985 | * | |
2986 | * Returns 0 for success else error. | |
2987 | */ | |
7bd3a6f3 MB |
2988 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, |
2989 | struct snd_soc_dai *dai, int event) | |
ce6120cc LG |
2990 | { |
2991 | struct snd_soc_codec *codec = rtd->codec; | |
2992 | ||
ce6120cc | 2993 | mutex_lock(&codec->mutex); |
7bd3a6f3 | 2994 | soc_dapm_stream_event(&codec->dapm, stream, dai, event); |
8e8b2d67 | 2995 | mutex_unlock(&codec->mutex); |
2b97eabc RP |
2996 | return 0; |
2997 | } | |
2b97eabc RP |
2998 | |
2999 | /** | |
a5302181 | 3000 | * snd_soc_dapm_enable_pin - enable pin. |
ce6120cc | 3001 | * @dapm: DAPM context |
a5302181 | 3002 | * @pin: pin name |
2b97eabc | 3003 | * |
74b8f955 | 3004 | * Enables input/output pin and its parents or children widgets iff there is |
a5302181 LG |
3005 | * a valid audio route and active audio stream. |
3006 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3007 | * do any widget power switching. | |
2b97eabc | 3008 | */ |
ce6120cc | 3009 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc | 3010 | { |
ce6120cc | 3011 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181 LG |
3012 | } |
3013 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); | |
2b97eabc | 3014 | |
da34183e MB |
3015 | /** |
3016 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled | |
ce6120cc | 3017 | * @dapm: DAPM context |
da34183e MB |
3018 | * @pin: pin name |
3019 | * | |
3020 | * Enables input/output pin regardless of any other state. This is | |
3021 | * intended for use with microphone bias supplies used in microphone | |
3022 | * jack detection. | |
3023 | * | |
3024 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3025 | * do any widget power switching. | |
3026 | */ | |
ce6120cc LG |
3027 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
3028 | const char *pin) | |
da34183e | 3029 | { |
91a5fca4 | 3030 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e | 3031 | |
91a5fca4 LPC |
3032 | if (!w) { |
3033 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3034 | return -EINVAL; | |
0d86733c MB |
3035 | } |
3036 | ||
91a5fca4 LPC |
3037 | dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin); |
3038 | w->connected = 1; | |
3039 | w->force = 1; | |
75c1f891 | 3040 | dapm_mark_dirty(w, "force enable"); |
da34183e | 3041 | |
91a5fca4 | 3042 | return 0; |
da34183e MB |
3043 | } |
3044 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); | |
3045 | ||
a5302181 LG |
3046 | /** |
3047 | * snd_soc_dapm_disable_pin - disable pin. | |
ce6120cc | 3048 | * @dapm: DAPM context |
a5302181 LG |
3049 | * @pin: pin name |
3050 | * | |
74b8f955 | 3051 | * Disables input/output pin and its parents or children widgets. |
a5302181 LG |
3052 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
3053 | * do any widget power switching. | |
3054 | */ | |
ce6120cc LG |
3055 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
3056 | const char *pin) | |
a5302181 | 3057 | { |
ce6120cc | 3058 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc | 3059 | } |
a5302181 | 3060 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc | 3061 | |
5817b52a MB |
3062 | /** |
3063 | * snd_soc_dapm_nc_pin - permanently disable pin. | |
ce6120cc | 3064 | * @dapm: DAPM context |
5817b52a MB |
3065 | * @pin: pin name |
3066 | * | |
3067 | * Marks the specified pin as being not connected, disabling it along | |
3068 | * any parent or child widgets. At present this is identical to | |
3069 | * snd_soc_dapm_disable_pin() but in future it will be extended to do | |
3070 | * additional things such as disabling controls which only affect | |
3071 | * paths through the pin. | |
3072 | * | |
3073 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to | |
3074 | * do any widget power switching. | |
3075 | */ | |
ce6120cc | 3076 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a | 3077 | { |
ce6120cc | 3078 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a MB |
3079 | } |
3080 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); | |
3081 | ||
eeec12bf | 3082 | /** |
a5302181 | 3083 | * snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cc | 3084 | * @dapm: DAPM context |
a5302181 | 3085 | * @pin: audio signal pin endpoint (or start point) |
eeec12bf | 3086 | * |
a5302181 | 3087 | * Get audio pin status - connected or disconnected. |
eeec12bf | 3088 | * |
a5302181 | 3089 | * Returns 1 for connected otherwise 0. |
eeec12bf | 3090 | */ |
ce6120cc LG |
3091 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
3092 | const char *pin) | |
eeec12bf | 3093 | { |
91a5fca4 | 3094 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf | 3095 | |
91a5fca4 LPC |
3096 | if (w) |
3097 | return w->connected; | |
a68b38ad | 3098 | |
eeec12bf GG |
3099 | return 0; |
3100 | } | |
a5302181 | 3101 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf | 3102 | |
1547aba9 MB |
3103 | /** |
3104 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint | |
ce6120cc | 3105 | * @dapm: DAPM context |
1547aba9 MB |
3106 | * @pin: audio signal pin endpoint (or start point) |
3107 | * | |
3108 | * Mark the given endpoint or pin as ignoring suspend. When the | |
3109 | * system is disabled a path between two endpoints flagged as ignoring | |
3110 | * suspend will not be disabled. The path must already be enabled via | |
3111 | * normal means at suspend time, it will not be turned on if it was not | |
3112 | * already enabled. | |
3113 | */ | |
ce6120cc LG |
3114 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
3115 | const char *pin) | |
1547aba9 | 3116 | { |
91a5fca4 | 3117 | struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba9 | 3118 | |
91a5fca4 LPC |
3119 | if (!w) { |
3120 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); | |
3121 | return -EINVAL; | |
1547aba9 MB |
3122 | } |
3123 | ||
91a5fca4 LPC |
3124 | w->ignore_suspend = 1; |
3125 | ||
3126 | return 0; | |
1547aba9 MB |
3127 | } |
3128 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); | |
3129 | ||
1633281b SW |
3130 | static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, |
3131 | struct snd_soc_dapm_widget *w) | |
3132 | { | |
3133 | struct snd_soc_dapm_path *p; | |
3134 | ||
3135 | list_for_each_entry(p, &card->paths, list) { | |
3136 | if ((p->source == w) || (p->sink == w)) { | |
3137 | dev_dbg(card->dev, | |
3138 | "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", | |
3139 | p->source->name, p->source->id, p->source->dapm, | |
3140 | p->sink->name, p->sink->id, p->sink->dapm); | |
3141 | ||
3142 | /* Connected to something other than the codec */ | |
3143 | if (p->source->dapm != p->sink->dapm) | |
3144 | return true; | |
3145 | /* | |
3146 | * Loopback connection from codec external pin to | |
3147 | * codec external pin | |
3148 | */ | |
3149 | if (p->sink->id == snd_soc_dapm_input) { | |
3150 | switch (p->source->id) { | |
3151 | case snd_soc_dapm_output: | |
3152 | case snd_soc_dapm_micbias: | |
3153 | return true; | |
3154 | default: | |
3155 | break; | |
3156 | } | |
3157 | } | |
3158 | } | |
3159 | } | |
3160 | ||
3161 | return false; | |
3162 | } | |
3163 | ||
3164 | /** | |
3165 | * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins | |
3166 | * @codec: The codec whose pins should be processed | |
3167 | * | |
3168 | * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec | |
3169 | * which are unused. Pins are used if they are connected externally to the | |
3170 | * codec, whether that be to some other device, or a loop-back connection to | |
3171 | * the codec itself. | |
3172 | */ | |
3173 | void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) | |
3174 | { | |
3175 | struct snd_soc_card *card = codec->card; | |
3176 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
3177 | struct snd_soc_dapm_widget *w; | |
3178 | ||
a094b80b | 3179 | dev_dbg(codec->dev, "Auto NC: DAPMs: card:%p codec:%p\n", |
1633281b SW |
3180 | &card->dapm, &codec->dapm); |
3181 | ||
3182 | list_for_each_entry(w, &card->widgets, list) { | |
3183 | if (w->dapm != dapm) | |
3184 | continue; | |
3185 | switch (w->id) { | |
3186 | case snd_soc_dapm_input: | |
3187 | case snd_soc_dapm_output: | |
3188 | case snd_soc_dapm_micbias: | |
a094b80b | 3189 | dev_dbg(codec->dev, "Auto NC: Checking widget %s\n", |
1633281b SW |
3190 | w->name); |
3191 | if (!snd_soc_dapm_widget_in_card_paths(card, w)) { | |
a094b80b | 3192 | dev_dbg(codec->dev, |
1633281b SW |
3193 | "... Not in map; disabling\n"); |
3194 | snd_soc_dapm_nc_pin(dapm, w->name); | |
3195 | } | |
3196 | break; | |
3197 | default: | |
3198 | break; | |
3199 | } | |
3200 | } | |
3201 | } | |
3202 | ||
2b97eabc RP |
3203 | /** |
3204 | * snd_soc_dapm_free - free dapm resources | |
728a5222 | 3205 | * @dapm: DAPM context |
2b97eabc RP |
3206 | * |
3207 | * Free all dapm widgets and resources. | |
3208 | */ | |
ce6120cc | 3209 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc | 3210 | { |
ce6120cc | 3211 | snd_soc_dapm_sys_remove(dapm->dev); |
6c45e126 | 3212 | dapm_debugfs_cleanup(dapm); |
ce6120cc | 3213 | dapm_free_widgets(dapm); |
7be31be8 | 3214 | list_del(&dapm->list); |
2b97eabc RP |
3215 | } |
3216 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); | |
3217 | ||
ce6120cc | 3218 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
51737470 | 3219 | { |
51737470 MB |
3220 | struct snd_soc_dapm_widget *w; |
3221 | LIST_HEAD(down_list); | |
3222 | int powerdown = 0; | |
3223 | ||
97c866de JN |
3224 | list_for_each_entry(w, &dapm->card->widgets, list) { |
3225 | if (w->dapm != dapm) | |
3226 | continue; | |
51737470 | 3227 | if (w->power) { |
828a842f | 3228 | dapm_seq_insert(w, &down_list, false); |
c2caa4da | 3229 | w->power = 0; |
51737470 MB |
3230 | powerdown = 1; |
3231 | } | |
3232 | } | |
3233 | ||
3234 | /* If there were no widgets to power down we're already in | |
3235 | * standby. | |
3236 | */ | |
3237 | if (powerdown) { | |
ed5a4c47 | 3238 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE); |
828a842f | 3239 | dapm_seq_run(dapm, &down_list, 0, false); |
ed5a4c47 | 3240 | snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY); |
51737470 | 3241 | } |
f0fba2ad LG |
3242 | } |
3243 | ||
3244 | /* | |
3245 | * snd_soc_dapm_shutdown - callback for system shutdown | |
3246 | */ | |
3247 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) | |
3248 | { | |
3249 | struct snd_soc_codec *codec; | |
3250 | ||
ce6120cc LG |
3251 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
3252 | soc_dapm_shutdown_codec(&codec->dapm); | |
ed5a4c47 | 3253 | snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF); |
ce6120cc | 3254 | } |
51737470 MB |
3255 | } |
3256 | ||
2b97eabc | 3257 | /* Module information */ |
d331124d | 3258 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc RP |
3259 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
3260 | MODULE_LICENSE("GPL"); |