soc-dapm.c (8990c1bc4be46473ad19bf2fa612ca57286f3df4) soc-dapm.c (8ddab3f5107c3955e70e87a632d4d179ddba1189)
1/*
2 * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management
3 *
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
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

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37#include <linux/bitops.h>
38#include <linux/platform_device.h>
39#include <linux/jiffies.h>
40#include <linux/debugfs.h>
41#include <linux/slab.h>
42#include <sound/core.h>
43#include <sound/pcm.h>
44#include <sound/pcm_params.h>
1/*
2 * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management
3 *
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
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

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37#include <linux/bitops.h>
38#include <linux/platform_device.h>
39#include <linux/jiffies.h>
40#include <linux/debugfs.h>
41#include <linux/slab.h>
42#include <sound/core.h>
43#include <sound/pcm.h>
44#include <sound/pcm_params.h>
45#include <sound/soc-dapm.h>
45#include <sound/soc.h>
46#include <sound/initval.h>
47
46#include <sound/initval.h>
47
48#include <trace/events/asoc.h>
49
48/* dapm power sequences - make this per codec in the future */
49static int dapm_up_seq[] = {
50 [snd_soc_dapm_pre] = 0,
51 [snd_soc_dapm_supply] = 1,
52 [snd_soc_dapm_micbias] = 2,
53 [snd_soc_dapm_aif_in] = 3,
54 [snd_soc_dapm_aif_out] = 3,
55 [snd_soc_dapm_mic] = 4,
56 [snd_soc_dapm_mux] = 5,
57 [snd_soc_dapm_value_mux] = 5,
58 [snd_soc_dapm_dac] = 6,
59 [snd_soc_dapm_mixer] = 7,
60 [snd_soc_dapm_mixer_named_ctl] = 7,
61 [snd_soc_dapm_pga] = 8,
62 [snd_soc_dapm_adc] = 9,
50/* dapm power sequences - make this per codec in the future */
51static int dapm_up_seq[] = {
52 [snd_soc_dapm_pre] = 0,
53 [snd_soc_dapm_supply] = 1,
54 [snd_soc_dapm_micbias] = 2,
55 [snd_soc_dapm_aif_in] = 3,
56 [snd_soc_dapm_aif_out] = 3,
57 [snd_soc_dapm_mic] = 4,
58 [snd_soc_dapm_mux] = 5,
59 [snd_soc_dapm_value_mux] = 5,
60 [snd_soc_dapm_dac] = 6,
61 [snd_soc_dapm_mixer] = 7,
62 [snd_soc_dapm_mixer_named_ctl] = 7,
63 [snd_soc_dapm_pga] = 8,
64 [snd_soc_dapm_adc] = 9,
65 [snd_soc_dapm_out_drv] = 10,
63 [snd_soc_dapm_hp] = 10,
64 [snd_soc_dapm_spk] = 10,
65 [snd_soc_dapm_post] = 11,
66};
67
68static int dapm_down_seq[] = {
69 [snd_soc_dapm_pre] = 0,
70 [snd_soc_dapm_adc] = 1,
71 [snd_soc_dapm_hp] = 2,
72 [snd_soc_dapm_spk] = 2,
66 [snd_soc_dapm_hp] = 10,
67 [snd_soc_dapm_spk] = 10,
68 [snd_soc_dapm_post] = 11,
69};
70
71static int dapm_down_seq[] = {
72 [snd_soc_dapm_pre] = 0,
73 [snd_soc_dapm_adc] = 1,
74 [snd_soc_dapm_hp] = 2,
75 [snd_soc_dapm_spk] = 2,
76 [snd_soc_dapm_out_drv] = 2,
73 [snd_soc_dapm_pga] = 4,
74 [snd_soc_dapm_mixer_named_ctl] = 5,
75 [snd_soc_dapm_mixer] = 5,
76 [snd_soc_dapm_dac] = 6,
77 [snd_soc_dapm_mic] = 7,
78 [snd_soc_dapm_micbias] = 8,
79 [snd_soc_dapm_mux] = 9,
80 [snd_soc_dapm_value_mux] = 9,

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85};
86
87static void pop_wait(u32 pop_time)
88{
89 if (pop_time)
90 schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time));
91}
92
77 [snd_soc_dapm_pga] = 4,
78 [snd_soc_dapm_mixer_named_ctl] = 5,
79 [snd_soc_dapm_mixer] = 5,
80 [snd_soc_dapm_dac] = 6,
81 [snd_soc_dapm_mic] = 7,
82 [snd_soc_dapm_micbias] = 8,
83 [snd_soc_dapm_mux] = 9,
84 [snd_soc_dapm_value_mux] = 9,

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89};
90
91static void pop_wait(u32 pop_time)
92{
93 if (pop_time)
94 schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time));
95}
96
93static void pop_dbg(u32 pop_time, const char *fmt, ...)
97static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...)
94{
95 va_list args;
98{
99 va_list args;
100 char *buf;
96
101
97 va_start(args, fmt);
102 if (!pop_time)
103 return;
98
104
99 if (pop_time) {
100 vprintk(fmt, args);
101 }
105 buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
106 if (buf == NULL)
107 return;
102
108
109 va_start(args, fmt);
110 vsnprintf(buf, PAGE_SIZE, fmt, args);
111 dev_info(dev, buf);
103 va_end(args);
112 va_end(args);
113
114 kfree(buf);
104}
105
106/* create a new dapm widget */
107static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
108 const struct snd_soc_dapm_widget *_widget)
109{
110 return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL);
111}
112
113/**
114 * snd_soc_dapm_set_bias_level - set the bias level for the system
115 * @card: audio device
116 * @level: level to configure
117 *
118 * Configure the bias (power) levels for the SoC audio device.
119 *
120 * Returns 0 for success else error.
121 */
122static int snd_soc_dapm_set_bias_level(struct snd_soc_card *card,
115}
116
117/* create a new dapm widget */
118static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
119 const struct snd_soc_dapm_widget *_widget)
120{
121 return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL);
122}
123
124/**
125 * snd_soc_dapm_set_bias_level - set the bias level for the system
126 * @card: audio device
127 * @level: level to configure
128 *
129 * Configure the bias (power) levels for the SoC audio device.
130 *
131 * Returns 0 for success else error.
132 */
133static int snd_soc_dapm_set_bias_level(struct snd_soc_card *card,
123 struct snd_soc_codec *codec, enum snd_soc_bias_level level)
134 struct snd_soc_dapm_context *dapm,
135 enum snd_soc_bias_level level)
124{
125 int ret = 0;
126
127 switch (level) {
128 case SND_SOC_BIAS_ON:
136{
137 int ret = 0;
138
139 switch (level) {
140 case SND_SOC_BIAS_ON:
129 dev_dbg(codec->dev, "Setting full bias\n");
141 dev_dbg(dapm->dev, "Setting full bias\n");
130 break;
131 case SND_SOC_BIAS_PREPARE:
142 break;
143 case SND_SOC_BIAS_PREPARE:
132 dev_dbg(codec->dev, "Setting bias prepare\n");
144 dev_dbg(dapm->dev, "Setting bias prepare\n");
133 break;
134 case SND_SOC_BIAS_STANDBY:
145 break;
146 case SND_SOC_BIAS_STANDBY:
135 dev_dbg(codec->dev, "Setting standby bias\n");
147 dev_dbg(dapm->dev, "Setting standby bias\n");
136 break;
137 case SND_SOC_BIAS_OFF:
148 break;
149 case SND_SOC_BIAS_OFF:
138 dev_dbg(codec->dev, "Setting bias off\n");
150 dev_dbg(dapm->dev, "Setting bias off\n");
139 break;
140 default:
151 break;
152 default:
141 dev_err(codec->dev, "Setting invalid bias %d\n", level);
153 dev_err(dapm->dev, "Setting invalid bias %d\n", level);
142 return -EINVAL;
143 }
144
154 return -EINVAL;
155 }
156
157 trace_snd_soc_bias_level_start(card, level);
158
145 if (card && card->set_bias_level)
146 ret = card->set_bias_level(card, level);
147 if (ret == 0) {
159 if (card && card->set_bias_level)
160 ret = card->set_bias_level(card, level);
161 if (ret == 0) {
148 if (codec->driver->set_bias_level)
149 ret = codec->driver->set_bias_level(codec, level);
162 if (dapm->codec && dapm->codec->driver->set_bias_level)
163 ret = dapm->codec->driver->set_bias_level(dapm->codec, level);
150 else
164 else
151 codec->bias_level = level;
165 dapm->bias_level = level;
152 }
166 }
167 if (ret == 0) {
168 if (card && card->set_bias_level_post)
169 ret = card->set_bias_level_post(card, level);
170 }
153
171
172 trace_snd_soc_bias_level_done(card, level);
173
154 return ret;
155}
156
157/* set up initial codec paths */
158static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
159 struct snd_soc_dapm_path *p, int i)
160{
161 switch (w->id) {

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212 for (i = 0; i < e->max; i++) {
213 if (!(strcmp(p->name, e->texts[i])) && item == i)
214 p->connect = 1;
215 }
216 }
217 break;
218 /* does not effect routing - always connected */
219 case snd_soc_dapm_pga:
174 return ret;
175}
176
177/* set up initial codec paths */
178static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
179 struct snd_soc_dapm_path *p, int i)
180{
181 switch (w->id) {

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232 for (i = 0; i < e->max; i++) {
233 if (!(strcmp(p->name, e->texts[i])) && item == i)
234 p->connect = 1;
235 }
236 }
237 break;
238 /* does not effect routing - always connected */
239 case snd_soc_dapm_pga:
240 case snd_soc_dapm_out_drv:
220 case snd_soc_dapm_output:
221 case snd_soc_dapm_adc:
222 case snd_soc_dapm_input:
223 case snd_soc_dapm_dac:
224 case snd_soc_dapm_micbias:
225 case snd_soc_dapm_vmid:
226 case snd_soc_dapm_supply:
227 case snd_soc_dapm_aif_in:

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236 case snd_soc_dapm_pre:
237 case snd_soc_dapm_post:
238 p->connect = 0;
239 break;
240 }
241}
242
243/* connect mux widget to its interconnecting audio paths */
241 case snd_soc_dapm_output:
242 case snd_soc_dapm_adc:
243 case snd_soc_dapm_input:
244 case snd_soc_dapm_dac:
245 case snd_soc_dapm_micbias:
246 case snd_soc_dapm_vmid:
247 case snd_soc_dapm_supply:
248 case snd_soc_dapm_aif_in:

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257 case snd_soc_dapm_pre:
258 case snd_soc_dapm_post:
259 p->connect = 0;
260 break;
261 }
262}
263
264/* connect mux widget to its interconnecting audio paths */
244static int dapm_connect_mux(struct snd_soc_codec *codec,
265static int dapm_connect_mux(struct snd_soc_dapm_context *dapm,
245 struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
246 struct snd_soc_dapm_path *path, const char *control_name,
247 const struct snd_kcontrol_new *kcontrol)
248{
249 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
250 int i;
251
252 for (i = 0; i < e->max; i++) {
253 if (!(strcmp(control_name, e->texts[i]))) {
266 struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
267 struct snd_soc_dapm_path *path, const char *control_name,
268 const struct snd_kcontrol_new *kcontrol)
269{
270 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
271 int i;
272
273 for (i = 0; i < e->max; i++) {
274 if (!(strcmp(control_name, e->texts[i]))) {
254 list_add(&path->list, &codec->dapm_paths);
275 list_add(&path->list, &dapm->card->paths);
255 list_add(&path->list_sink, &dest->sources);
256 list_add(&path->list_source, &src->sinks);
257 path->name = (char*)e->texts[i];
258 dapm_set_path_status(dest, path, 0);
259 return 0;
260 }
261 }
262
263 return -ENODEV;
264}
265
266/* connect mixer widget to its interconnecting audio paths */
276 list_add(&path->list_sink, &dest->sources);
277 list_add(&path->list_source, &src->sinks);
278 path->name = (char*)e->texts[i];
279 dapm_set_path_status(dest, path, 0);
280 return 0;
281 }
282 }
283
284 return -ENODEV;
285}
286
287/* connect mixer widget to its interconnecting audio paths */
267static int dapm_connect_mixer(struct snd_soc_codec *codec,
288static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm,
268 struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
269 struct snd_soc_dapm_path *path, const char *control_name)
270{
271 int i;
272
273 /* search for mixer kcontrol */
274 for (i = 0; i < dest->num_kcontrols; i++) {
275 if (!strcmp(control_name, dest->kcontrols[i].name)) {
289 struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
290 struct snd_soc_dapm_path *path, const char *control_name)
291{
292 int i;
293
294 /* search for mixer kcontrol */
295 for (i = 0; i < dest->num_kcontrols; i++) {
296 if (!strcmp(control_name, dest->kcontrols[i].name)) {
276 list_add(&path->list, &codec->dapm_paths);
297 list_add(&path->list, &dapm->card->paths);
277 list_add(&path->list_sink, &dest->sources);
278 list_add(&path->list_source, &src->sinks);
279 path->name = dest->kcontrols[i].name;
280 dapm_set_path_status(dest, path, i);
281 return 0;
282 }
283 }
284 return -ENODEV;
285}
286
287/* update dapm codec register bits */
288static int dapm_update_bits(struct snd_soc_dapm_widget *widget)
289{
290 int change, power;
291 unsigned int old, new;
292 struct snd_soc_codec *codec = widget->codec;
298 list_add(&path->list_sink, &dest->sources);
299 list_add(&path->list_source, &src->sinks);
300 path->name = dest->kcontrols[i].name;
301 dapm_set_path_status(dest, path, i);
302 return 0;
303 }
304 }
305 return -ENODEV;
306}
307
308/* update dapm codec register bits */
309static int dapm_update_bits(struct snd_soc_dapm_widget *widget)
310{
311 int change, power;
312 unsigned int old, new;
313 struct snd_soc_codec *codec = widget->codec;
314 struct snd_soc_dapm_context *dapm = widget->dapm;
315 struct snd_soc_card *card = dapm->card;
293
294 /* check for valid widgets */
295 if (widget->reg < 0 || widget->id == snd_soc_dapm_input ||
296 widget->id == snd_soc_dapm_output ||
297 widget->id == snd_soc_dapm_hp ||
298 widget->id == snd_soc_dapm_mic ||
299 widget->id == snd_soc_dapm_line ||
300 widget->id == snd_soc_dapm_spk)
301 return 0;
302
303 power = widget->power;
304 if (widget->invert)
305 power = (power ? 0:1);
306
307 old = snd_soc_read(codec, widget->reg);
308 new = (old & ~(0x1 << widget->shift)) | (power << widget->shift);
309
310 change = old != new;
311 if (change) {
316
317 /* check for valid widgets */
318 if (widget->reg < 0 || widget->id == snd_soc_dapm_input ||
319 widget->id == snd_soc_dapm_output ||
320 widget->id == snd_soc_dapm_hp ||
321 widget->id == snd_soc_dapm_mic ||
322 widget->id == snd_soc_dapm_line ||
323 widget->id == snd_soc_dapm_spk)
324 return 0;
325
326 power = widget->power;
327 if (widget->invert)
328 power = (power ? 0:1);
329
330 old = snd_soc_read(codec, widget->reg);
331 new = (old & ~(0x1 << widget->shift)) | (power << widget->shift);
332
333 change = old != new;
334 if (change) {
312 pop_dbg(codec->pop_time, "pop test %s : %s in %d ms\n",
335 pop_dbg(dapm->dev, card->pop_time,
336 "pop test %s : %s in %d ms\n",
313 widget->name, widget->power ? "on" : "off",
337 widget->name, widget->power ? "on" : "off",
314 codec->pop_time);
315 pop_wait(codec->pop_time);
338 card->pop_time);
339 pop_wait(card->pop_time);
316 snd_soc_write(codec, widget->reg, new);
317 }
340 snd_soc_write(codec, widget->reg, new);
341 }
318 pr_debug("reg %x old %x new %x change %d\n", widget->reg,
319 old, new, change);
342 dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg,
343 old, new, change);
320 return change;
321}
322
323/* create new dapm mixer control */
344 return change;
345}
346
347/* create new dapm mixer control */
324static int dapm_new_mixer(struct snd_soc_codec *codec,
348static int dapm_new_mixer(struct snd_soc_dapm_context *dapm,
325 struct snd_soc_dapm_widget *w)
326{
327 int i, ret = 0;
328 size_t name_len;
329 struct snd_soc_dapm_path *path;
349 struct snd_soc_dapm_widget *w)
350{
351 int i, ret = 0;
352 size_t name_len;
353 struct snd_soc_dapm_path *path;
354 struct snd_card *card = dapm->codec->card->snd_card;
330
331 /* add kcontrol */
332 for (i = 0; i < w->num_kcontrols; i++) {
333
334 /* match name */
335 list_for_each_entry(path, &w->sources, list_sink) {
336
337 /* mixer/mux paths name must match control name */

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363 w->kcontrols[i].name);
364 break;
365 }
366
367 path->long_name[name_len - 1] = '\0';
368
369 path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w,
370 path->long_name);
355
356 /* add kcontrol */
357 for (i = 0; i < w->num_kcontrols; i++) {
358
359 /* match name */
360 list_for_each_entry(path, &w->sources, list_sink) {
361
362 /* mixer/mux paths name must match control name */

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388 w->kcontrols[i].name);
389 break;
390 }
391
392 path->long_name[name_len - 1] = '\0';
393
394 path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w,
395 path->long_name);
371 ret = snd_ctl_add(codec->card->snd_card, path->kcontrol);
396 ret = snd_ctl_add(card, path->kcontrol);
372 if (ret < 0) {
397 if (ret < 0) {
373 printk(KERN_ERR "asoc: failed to add dapm kcontrol %s: %d\n",
374 path->long_name,
375 ret);
398 dev_err(dapm->dev,
399 "asoc: failed to add dapm kcontrol %s: %d\n",
400 path->long_name, ret);
376 kfree(path->long_name);
377 path->long_name = NULL;
378 return ret;
379 }
380 }
381 }
382 return ret;
383}
384
385/* create new dapm mux control */
401 kfree(path->long_name);
402 path->long_name = NULL;
403 return ret;
404 }
405 }
406 }
407 return ret;
408}
409
410/* create new dapm mux control */
386static int dapm_new_mux(struct snd_soc_codec *codec,
411static int dapm_new_mux(struct snd_soc_dapm_context *dapm,
387 struct snd_soc_dapm_widget *w)
388{
389 struct snd_soc_dapm_path *path = NULL;
390 struct snd_kcontrol *kcontrol;
412 struct snd_soc_dapm_widget *w)
413{
414 struct snd_soc_dapm_path *path = NULL;
415 struct snd_kcontrol *kcontrol;
416 struct snd_card *card = dapm->codec->card->snd_card;
391 int ret = 0;
392
393 if (!w->num_kcontrols) {
417 int ret = 0;
418
419 if (!w->num_kcontrols) {
394 printk(KERN_ERR "asoc: mux %s has no controls\n", w->name);
420 dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name);
395 return -EINVAL;
396 }
397
398 kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name);
421 return -EINVAL;
422 }
423
424 kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name);
399 ret = snd_ctl_add(codec->card->snd_card, kcontrol);
425 ret = snd_ctl_add(card, kcontrol);
426
400 if (ret < 0)
401 goto err;
402
403 list_for_each_entry(path, &w->sources, list_sink)
404 path->kcontrol = kcontrol;
405
406 return ret;
407
408err:
427 if (ret < 0)
428 goto err;
429
430 list_for_each_entry(path, &w->sources, list_sink)
431 path->kcontrol = kcontrol;
432
433 return ret;
434
435err:
409 printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name);
436 dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name);
410 return ret;
411}
412
413/* create new dapm volume control */
437 return ret;
438}
439
440/* create new dapm volume control */
414static int dapm_new_pga(struct snd_soc_codec *codec,
441static int dapm_new_pga(struct snd_soc_dapm_context *dapm,
415 struct snd_soc_dapm_widget *w)
416{
417 if (w->num_kcontrols)
442 struct snd_soc_dapm_widget *w)
443{
444 if (w->num_kcontrols)
418 pr_err("asoc: PGA controls not supported: '%s'\n", w->name);
445 dev_err(w->dapm->dev,
446 "asoc: PGA controls not supported: '%s'\n", w->name);
419
420 return 0;
421}
422
423/* reset 'walked' bit for each dapm path */
447
448 return 0;
449}
450
451/* reset 'walked' bit for each dapm path */
424static inline void dapm_clear_walk(struct snd_soc_codec *codec)
452static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm)
425{
426 struct snd_soc_dapm_path *p;
427
453{
454 struct snd_soc_dapm_path *p;
455
428 list_for_each_entry(p, &codec->dapm_paths, list)
456 list_for_each_entry(p, &dapm->card->paths, list)
429 p->walked = 0;
430}
431
432/* We implement power down on suspend by checking the power state of
433 * the ALSA card - when we are suspending the ALSA state for the card
434 * is set to D3.
435 */
436static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget)
437{
457 p->walked = 0;
458}
459
460/* We implement power down on suspend by checking the power state of
461 * the ALSA card - when we are suspending the ALSA state for the card
462 * is set to D3.
463 */
464static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget)
465{
438 int level = snd_power_get_state(widget->codec->card->snd_card);
466 int level = snd_power_get_state(widget->dapm->codec->card->snd_card);
439
440 switch (level) {
441 case SNDRV_CTL_POWER_D3hot:
442 case SNDRV_CTL_POWER_D3cold:
443 if (widget->ignore_suspend)
467
468 switch (level) {
469 case SNDRV_CTL_POWER_D3hot:
470 case SNDRV_CTL_POWER_D3cold:
471 if (widget->ignore_suspend)
444 pr_debug("%s ignoring suspend\n", widget->name);
472 dev_dbg(widget->dapm->dev, "%s ignoring suspend\n",
473 widget->name);
445 return widget->ignore_suspend;
446 default:
447 return 1;
448 }
449}
450
451/*
452 * Recursively check for a completed path to an active or physically connected

--- 114 unchanged lines hidden (view full) ---

567 * widgets.
568 */
569static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w)
570{
571 int ret;
572
573 /* call any power change event handlers */
574 if (w->event)
474 return widget->ignore_suspend;
475 default:
476 return 1;
477 }
478}
479
480/*
481 * Recursively check for a completed path to an active or physically connected

--- 114 unchanged lines hidden (view full) ---

596 * widgets.
597 */
598static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w)
599{
600 int ret;
601
602 /* call any power change event handlers */
603 if (w->event)
575 pr_debug("power %s event for %s flags %x\n",
604 dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n",
576 w->power ? "on" : "off",
577 w->name, w->event_flags);
578
579 /* power up pre event */
580 if (w->power && w->event &&
581 (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
582 ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
583 if (ret < 0)

--- 32 unchanged lines hidden (view full) ---

616
617/* Generic check to see if a widget should be powered.
618 */
619static int dapm_generic_check_power(struct snd_soc_dapm_widget *w)
620{
621 int in, out;
622
623 in = is_connected_input_ep(w);
605 w->power ? "on" : "off",
606 w->name, w->event_flags);
607
608 /* power up pre event */
609 if (w->power && w->event &&
610 (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
611 ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
612 if (ret < 0)

--- 32 unchanged lines hidden (view full) ---

645
646/* Generic check to see if a widget should be powered.
647 */
648static int dapm_generic_check_power(struct snd_soc_dapm_widget *w)
649{
650 int in, out;
651
652 in = is_connected_input_ep(w);
624 dapm_clear_walk(w->codec);
653 dapm_clear_walk(w->dapm);
625 out = is_connected_output_ep(w);
654 out = is_connected_output_ep(w);
626 dapm_clear_walk(w->codec);
655 dapm_clear_walk(w->dapm);
627 return out != 0 && in != 0;
628}
629
630/* Check to see if an ADC has power */
631static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
632{
633 int in;
634
635 if (w->active) {
636 in = is_connected_input_ep(w);
656 return out != 0 && in != 0;
657}
658
659/* Check to see if an ADC has power */
660static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
661{
662 int in;
663
664 if (w->active) {
665 in = is_connected_input_ep(w);
637 dapm_clear_walk(w->codec);
666 dapm_clear_walk(w->dapm);
638 return in != 0;
639 } else {
640 return dapm_generic_check_power(w);
641 }
642}
643
644/* Check to see if a DAC has power */
645static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
646{
647 int out;
648
649 if (w->active) {
650 out = is_connected_output_ep(w);
667 return in != 0;
668 } else {
669 return dapm_generic_check_power(w);
670 }
671}
672
673/* Check to see if a DAC has power */
674static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
675{
676 int out;
677
678 if (w->active) {
679 out = is_connected_output_ep(w);
651 dapm_clear_walk(w->codec);
680 dapm_clear_walk(w->dapm);
652 return out != 0;
653 } else {
654 return dapm_generic_check_power(w);
655 }
656}
657
658/* Check to see if a power supply is needed */
659static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)

--- 9 unchanged lines hidden (view full) ---

669
670 if (path->sink && path->sink->power_check &&
671 path->sink->power_check(path->sink)) {
672 power = 1;
673 break;
674 }
675 }
676
681 return out != 0;
682 } else {
683 return dapm_generic_check_power(w);
684 }
685}
686
687/* Check to see if a power supply is needed */
688static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)

--- 9 unchanged lines hidden (view full) ---

698
699 if (path->sink && path->sink->power_check &&
700 path->sink->power_check(path->sink)) {
701 power = 1;
702 break;
703 }
704 }
705
677 dapm_clear_walk(w->codec);
706 dapm_clear_walk(w->dapm);
678
679 return power;
680}
681
682static int dapm_seq_compare(struct snd_soc_dapm_widget *a,
683 struct snd_soc_dapm_widget *b,
684 int sort[])
685{
707
708 return power;
709}
710
711static int dapm_seq_compare(struct snd_soc_dapm_widget *a,
712 struct snd_soc_dapm_widget *b,
713 int sort[])
714{
686 if (a->codec != b->codec)
687 return (unsigned long)a - (unsigned long)b;
688 if (sort[a->id] != sort[b->id])
689 return sort[a->id] - sort[b->id];
690 if (a->reg != b->reg)
691 return a->reg - b->reg;
715 if (sort[a->id] != sort[b->id])
716 return sort[a->id] - sort[b->id];
717 if (a->reg != b->reg)
718 return a->reg - b->reg;
719 if (a->dapm != b->dapm)
720 return (unsigned long)a->dapm - (unsigned long)b->dapm;
692
693 return 0;
694}
695
696/* Insert a widget in order into a DAPM power sequence. */
697static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget,
698 struct list_head *list,
699 int sort[])

--- 4 unchanged lines hidden (view full) ---

704 if (dapm_seq_compare(new_widget, w, sort) < 0) {
705 list_add_tail(&new_widget->power_list, &w->power_list);
706 return;
707 }
708
709 list_add_tail(&new_widget->power_list, list);
710}
711
721
722 return 0;
723}
724
725/* Insert a widget in order into a DAPM power sequence. */
726static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget,
727 struct list_head *list,
728 int sort[])

--- 4 unchanged lines hidden (view full) ---

733 if (dapm_seq_compare(new_widget, w, sort) < 0) {
734 list_add_tail(&new_widget->power_list, &w->power_list);
735 return;
736 }
737
738 list_add_tail(&new_widget->power_list, list);
739}
740
741static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm,
742 struct snd_soc_dapm_widget *w, int event)
743{
744 struct snd_soc_card *card = dapm->card;
745 const char *ev_name;
746 int power, ret;
747
748 switch (event) {
749 case SND_SOC_DAPM_PRE_PMU:
750 ev_name = "PRE_PMU";
751 power = 1;
752 break;
753 case SND_SOC_DAPM_POST_PMU:
754 ev_name = "POST_PMU";
755 power = 1;
756 break;
757 case SND_SOC_DAPM_PRE_PMD:
758 ev_name = "PRE_PMD";
759 power = 0;
760 break;
761 case SND_SOC_DAPM_POST_PMD:
762 ev_name = "POST_PMD";
763 power = 0;
764 break;
765 default:
766 BUG();
767 return;
768 }
769
770 if (w->power != power)
771 return;
772
773 if (w->event && (w->event_flags & event)) {
774 pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n",
775 w->name, ev_name);
776 trace_snd_soc_dapm_widget_event_start(w, event);
777 ret = w->event(w, NULL, event);
778 trace_snd_soc_dapm_widget_event_done(w, event);
779 if (ret < 0)
780 pr_err("%s: %s event failed: %d\n",
781 ev_name, w->name, ret);
782 }
783}
784
712/* Apply the coalesced changes from a DAPM sequence */
785/* Apply the coalesced changes from a DAPM sequence */
713static void dapm_seq_run_coalesced(struct snd_soc_codec *codec,
786static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm,
714 struct list_head *pending)
715{
787 struct list_head *pending)
788{
789 struct snd_soc_card *card = dapm->card;
716 struct snd_soc_dapm_widget *w;
790 struct snd_soc_dapm_widget *w;
717 int reg, power, ret;
791 int reg, power;
718 unsigned int value = 0;
719 unsigned int mask = 0;
720 unsigned int cur_mask;
721
722 reg = list_first_entry(pending, struct snd_soc_dapm_widget,
723 power_list)->reg;
724
725 list_for_each_entry(w, pending, power_list) {

--- 4 unchanged lines hidden (view full) ---

730 power = !w->power;
731 else
732 power = w->power;
733
734 mask |= cur_mask;
735 if (power)
736 value |= cur_mask;
737
792 unsigned int value = 0;
793 unsigned int mask = 0;
794 unsigned int cur_mask;
795
796 reg = list_first_entry(pending, struct snd_soc_dapm_widget,
797 power_list)->reg;
798
799 list_for_each_entry(w, pending, power_list) {

--- 4 unchanged lines hidden (view full) ---

804 power = !w->power;
805 else
806 power = w->power;
807
808 mask |= cur_mask;
809 if (power)
810 value |= cur_mask;
811
738 pop_dbg(codec->pop_time,
812 pop_dbg(dapm->dev, card->pop_time,
739 "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n",
740 w->name, reg, value, mask);
741
813 "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n",
814 w->name, reg, value, mask);
815
742 /* power up pre event */
743 if (w->power && w->event &&
744 (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
745 pop_dbg(codec->pop_time, "pop test : %s PRE_PMU\n",
746 w->name);
747 ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
748 if (ret < 0)
749 pr_err("%s: pre event failed: %d\n",
750 w->name, ret);
751 }
752
753 /* power down pre event */
754 if (!w->power && w->event &&
755 (w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
756 pop_dbg(codec->pop_time, "pop test : %s PRE_PMD\n",
757 w->name);
758 ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
759 if (ret < 0)
760 pr_err("%s: pre event failed: %d\n",
761 w->name, ret);
762 }
816 /* Check for events */
817 dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU);
818 dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD);
763 }
764
765 if (reg >= 0) {
819 }
820
821 if (reg >= 0) {
766 pop_dbg(codec->pop_time,
822 pop_dbg(dapm->dev, card->pop_time,
767 "pop test : Applying 0x%x/0x%x to %x in %dms\n",
823 "pop test : Applying 0x%x/0x%x to %x in %dms\n",
768 value, mask, reg, codec->pop_time);
769 pop_wait(codec->pop_time);
770 snd_soc_update_bits(codec, reg, mask, value);
824 value, mask, reg, card->pop_time);
825 pop_wait(card->pop_time);
826 snd_soc_update_bits(dapm->codec, reg, mask, value);
771 }
772
773 list_for_each_entry(w, pending, power_list) {
827 }
828
829 list_for_each_entry(w, pending, power_list) {
774 /* power up post event */
775 if (w->power && w->event &&
776 (w->event_flags & SND_SOC_DAPM_POST_PMU)) {
777 pop_dbg(codec->pop_time, "pop test : %s POST_PMU\n",
778 w->name);
779 ret = w->event(w,
780 NULL, SND_SOC_DAPM_POST_PMU);
781 if (ret < 0)
782 pr_err("%s: post event failed: %d\n",
783 w->name, ret);
784 }
785
786 /* power down post event */
787 if (!w->power && w->event &&
788 (w->event_flags & SND_SOC_DAPM_POST_PMD)) {
789 pop_dbg(codec->pop_time, "pop test : %s POST_PMD\n",
790 w->name);
791 ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
792 if (ret < 0)
793 pr_err("%s: post event failed: %d\n",
794 w->name, ret);
795 }
830 dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU);
831 dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD);
796 }
797}
798
799/* Apply a DAPM power sequence.
800 *
801 * We walk over a pre-sorted list of widgets to apply power to. In
802 * order to minimise the number of writes to the device required
803 * multiple widgets will be updated in a single write where possible.
804 * Currently anything that requires more than a single write is not
805 * handled.
806 */
832 }
833}
834
835/* Apply a DAPM power sequence.
836 *
837 * We walk over a pre-sorted list of widgets to apply power to. In
838 * order to minimise the number of writes to the device required
839 * multiple widgets will be updated in a single write where possible.
840 * Currently anything that requires more than a single write is not
841 * handled.
842 */
807static void dapm_seq_run(struct snd_soc_codec *codec, struct list_head *list,
808 int event, int sort[])
843static void dapm_seq_run(struct snd_soc_dapm_context *dapm,
844 struct list_head *list, int event, int sort[])
809{
810 struct snd_soc_dapm_widget *w, *n;
811 LIST_HEAD(pending);
812 int cur_sort = -1;
813 int cur_reg = SND_SOC_NOPM;
814 int ret;
815
816 list_for_each_entry_safe(w, n, list, power_list) {
817 ret = 0;
818
819 /* Do we need to apply any queued changes? */
820 if (sort[w->id] != cur_sort || w->reg != cur_reg) {
821 if (!list_empty(&pending))
845{
846 struct snd_soc_dapm_widget *w, *n;
847 LIST_HEAD(pending);
848 int cur_sort = -1;
849 int cur_reg = SND_SOC_NOPM;
850 int ret;
851
852 list_for_each_entry_safe(w, n, list, power_list) {
853 ret = 0;
854
855 /* Do we need to apply any queued changes? */
856 if (sort[w->id] != cur_sort || w->reg != cur_reg) {
857 if (!list_empty(&pending))
822 dapm_seq_run_coalesced(codec, &pending);
858 dapm_seq_run_coalesced(dapm, &pending);
823
824 INIT_LIST_HEAD(&pending);
825 cur_sort = -1;
826 cur_reg = SND_SOC_NOPM;
827 }
828
829 switch (w->id) {
830 case snd_soc_dapm_pre:

--- 36 unchanged lines hidden (view full) ---

867 /* Queue it up for application */
868 cur_sort = sort[w->id];
869 cur_reg = w->reg;
870 list_move(&w->power_list, &pending);
871 break;
872 }
873
874 if (ret < 0)
859
860 INIT_LIST_HEAD(&pending);
861 cur_sort = -1;
862 cur_reg = SND_SOC_NOPM;
863 }
864
865 switch (w->id) {
866 case snd_soc_dapm_pre:

--- 36 unchanged lines hidden (view full) ---

903 /* Queue it up for application */
904 cur_sort = sort[w->id];
905 cur_reg = w->reg;
906 list_move(&w->power_list, &pending);
907 break;
908 }
909
910 if (ret < 0)
875 pr_err("Failed to apply widget power: %d\n",
876 ret);
911 dev_err(w->dapm->dev,
912 "Failed to apply widget power: %d\n", ret);
877 }
878
879 if (!list_empty(&pending))
913 }
914
915 if (!list_empty(&pending))
880 dapm_seq_run_coalesced(codec, &pending);
916 dapm_seq_run_coalesced(dapm, &pending);
881}
882
883/*
884 * Scan each dapm widget for complete audio path.
885 * A complete path is a route that has valid endpoints i.e.:-
886 *
887 * o DAC to output pin.
888 * o Input Pin to ADC.
889 * o Input pin to Output pin (bypass, sidetone)
890 * o DAC to ADC (loopback).
891 */
917}
918
919/*
920 * Scan each dapm widget for complete audio path.
921 * A complete path is a route that has valid endpoints i.e.:-
922 *
923 * o DAC to output pin.
924 * o Input Pin to ADC.
925 * o Input pin to Output pin (bypass, sidetone)
926 * o DAC to ADC (loopback).
927 */
892static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
928static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
893{
929{
894 struct snd_soc_card *card = codec->card;
930 struct snd_soc_card *card = dapm->codec->card;
895 struct snd_soc_dapm_widget *w;
896 LIST_HEAD(up_list);
897 LIST_HEAD(down_list);
898 int ret = 0;
899 int power;
900 int sys_power = 0;
901
931 struct snd_soc_dapm_widget *w;
932 LIST_HEAD(up_list);
933 LIST_HEAD(down_list);
934 int ret = 0;
935 int power;
936 int sys_power = 0;
937
938 trace_snd_soc_dapm_start(card);
939
902 /* Check which widgets we need to power and store them in
903 * lists indicating if they should be powered up or down.
904 */
940 /* Check which widgets we need to power and store them in
941 * lists indicating if they should be powered up or down.
942 */
905 list_for_each_entry(w, &codec->dapm_widgets, list) {
943 list_for_each_entry(w, &dapm->widgets, list) {
906 switch (w->id) {
907 case snd_soc_dapm_pre:
908 dapm_seq_insert(w, &down_list, dapm_down_seq);
909 break;
910 case snd_soc_dapm_post:
911 dapm_seq_insert(w, &up_list, dapm_up_seq);
912 break;
913

--- 6 unchanged lines hidden (view full) ---

920 else
921 power = 1;
922 if (power)
923 sys_power = 1;
924
925 if (w->power == power)
926 continue;
927
944 switch (w->id) {
945 case snd_soc_dapm_pre:
946 dapm_seq_insert(w, &down_list, dapm_down_seq);
947 break;
948 case snd_soc_dapm_post:
949 dapm_seq_insert(w, &up_list, dapm_up_seq);
950 break;
951

--- 6 unchanged lines hidden (view full) ---

958 else
959 power = 1;
960 if (power)
961 sys_power = 1;
962
963 if (w->power == power)
964 continue;
965
966 trace_snd_soc_dapm_widget_power(w, power);
967
928 if (power)
929 dapm_seq_insert(w, &up_list, dapm_up_seq);
930 else
931 dapm_seq_insert(w, &down_list, dapm_down_seq);
932
933 w->power = power;
934 break;
935 }
936 }
937
938 /* If there are no DAPM widgets then try to figure out power from the
939 * event type.
940 */
968 if (power)
969 dapm_seq_insert(w, &up_list, dapm_up_seq);
970 else
971 dapm_seq_insert(w, &down_list, dapm_down_seq);
972
973 w->power = power;
974 break;
975 }
976 }
977
978 /* If there are no DAPM widgets then try to figure out power from the
979 * event type.
980 */
941 if (list_empty(&codec->dapm_widgets)) {
981 if (list_empty(&dapm->widgets)) {
942 switch (event) {
943 case SND_SOC_DAPM_STREAM_START:
944 case SND_SOC_DAPM_STREAM_RESUME:
945 sys_power = 1;
946 break;
982 switch (event) {
983 case SND_SOC_DAPM_STREAM_START:
984 case SND_SOC_DAPM_STREAM_RESUME:
985 sys_power = 1;
986 break;
987 case SND_SOC_DAPM_STREAM_STOP:
988 sys_power = !!dapm->codec->active;
989 break;
947 case SND_SOC_DAPM_STREAM_SUSPEND:
948 sys_power = 0;
949 break;
950 case SND_SOC_DAPM_STREAM_NOP:
990 case SND_SOC_DAPM_STREAM_SUSPEND:
991 sys_power = 0;
992 break;
993 case SND_SOC_DAPM_STREAM_NOP:
951 switch (codec->bias_level) {
994 switch (dapm->bias_level) {
952 case SND_SOC_BIAS_STANDBY:
953 case SND_SOC_BIAS_OFF:
954 sys_power = 0;
955 break;
956 default:
957 sys_power = 1;
958 break;
959 }
960 break;
961 default:
962 break;
963 }
964 }
965
995 case SND_SOC_BIAS_STANDBY:
996 case SND_SOC_BIAS_OFF:
997 sys_power = 0;
998 break;
999 default:
1000 sys_power = 1;
1001 break;
1002 }
1003 break;
1004 default:
1005 break;
1006 }
1007 }
1008
966 if (sys_power && codec->bias_level == SND_SOC_BIAS_OFF) {
967 ret = snd_soc_dapm_set_bias_level(card, codec,
1009 if (sys_power && dapm->bias_level == SND_SOC_BIAS_OFF) {
1010 ret = snd_soc_dapm_set_bias_level(card, dapm,
968 SND_SOC_BIAS_STANDBY);
969 if (ret != 0)
1011 SND_SOC_BIAS_STANDBY);
1012 if (ret != 0)
970 pr_err("Failed to turn on bias: %d\n", ret);
1013 dev_err(dapm->dev,
1014 "Failed to turn on bias: %d\n", ret);
971 }
972
973 /* If we're changing to all on or all off then prepare */
1015 }
1016
1017 /* If we're changing to all on or all off then prepare */
974 if ((sys_power && codec->bias_level == SND_SOC_BIAS_STANDBY) ||
975 (!sys_power && codec->bias_level == SND_SOC_BIAS_ON)) {
976 ret = snd_soc_dapm_set_bias_level(card, codec, SND_SOC_BIAS_PREPARE);
1018 if ((sys_power && dapm->bias_level == SND_SOC_BIAS_STANDBY) ||
1019 (!sys_power && dapm->bias_level == SND_SOC_BIAS_ON)) {
1020 ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_PREPARE);
977 if (ret != 0)
1021 if (ret != 0)
978 pr_err("Failed to prepare bias: %d\n", ret);
1022 dev_err(dapm->dev,
1023 "Failed to prepare bias: %d\n", ret);
979 }
980
981 /* Power down widgets first; try to avoid amplifying pops. */
1024 }
1025
1026 /* Power down widgets first; try to avoid amplifying pops. */
982 dapm_seq_run(codec, &down_list, event, dapm_down_seq);
1027 dapm_seq_run(dapm, &down_list, event, dapm_down_seq);
983
984 /* Now power up. */
1028
1029 /* Now power up. */
985 dapm_seq_run(codec, &up_list, event, dapm_up_seq);
1030 dapm_seq_run(dapm, &up_list, event, dapm_up_seq);
986
987 /* If we just powered the last thing off drop to standby bias */
1031
1032 /* If we just powered the last thing off drop to standby bias */
988 if (codec->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) {
989 ret = snd_soc_dapm_set_bias_level(card, codec, SND_SOC_BIAS_STANDBY);
1033 if (dapm->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) {
1034 ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_STANDBY);
990 if (ret != 0)
1035 if (ret != 0)
991 pr_err("Failed to apply standby bias: %d\n", ret);
1036 dev_err(dapm->dev,
1037 "Failed to apply standby bias: %d\n", ret);
992 }
993
994 /* If we're in standby and can support bias off then do that */
1038 }
1039
1040 /* If we're in standby and can support bias off then do that */
995 if (codec->bias_level == SND_SOC_BIAS_STANDBY &&
996 codec->idle_bias_off) {
997 ret = snd_soc_dapm_set_bias_level(card, codec, SND_SOC_BIAS_OFF);
1041 if (dapm->bias_level == SND_SOC_BIAS_STANDBY &&
1042 dapm->idle_bias_off) {
1043 ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_OFF);
998 if (ret != 0)
1044 if (ret != 0)
999 pr_err("Failed to turn off bias: %d\n", ret);
1045 dev_err(dapm->dev,
1046 "Failed to turn off bias: %d\n", ret);
1000 }
1001
1002 /* If we just powered up then move to active bias */
1047 }
1048
1049 /* If we just powered up then move to active bias */
1003 if (codec->bias_level == SND_SOC_BIAS_PREPARE && sys_power) {
1004 ret = snd_soc_dapm_set_bias_level(card, codec, SND_SOC_BIAS_ON);
1050 if (dapm->bias_level == SND_SOC_BIAS_PREPARE && sys_power) {
1051 ret = snd_soc_dapm_set_bias_level(card, dapm, SND_SOC_BIAS_ON);
1005 if (ret != 0)
1052 if (ret != 0)
1006 pr_err("Failed to apply active bias: %d\n", ret);
1053 dev_err(dapm->dev,
1054 "Failed to apply active bias: %d\n", ret);
1007 }
1008
1055 }
1056
1009 pop_dbg(codec->pop_time, "DAPM sequencing finished, waiting %dms\n",
1010 codec->pop_time);
1011 pop_wait(codec->pop_time);
1057 pop_dbg(dapm->dev, card->pop_time,
1058 "DAPM sequencing finished, waiting %dms\n", card->pop_time);
1059 pop_wait(card->pop_time);
1012
1060
1061 trace_snd_soc_dapm_done(card);
1062
1013 return 0;
1014}
1015
1016#ifdef CONFIG_DEBUG_FS
1017static int dapm_widget_power_open_file(struct inode *inode, struct file *file)
1018{
1019 file->private_data = inode->i_private;
1020 return 0;

--- 9 unchanged lines hidden (view full) ---

1030 ssize_t ret;
1031 struct snd_soc_dapm_path *p = NULL;
1032
1033 buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
1034 if (!buf)
1035 return -ENOMEM;
1036
1037 in = is_connected_input_ep(w);
1063 return 0;
1064}
1065
1066#ifdef CONFIG_DEBUG_FS
1067static int dapm_widget_power_open_file(struct inode *inode, struct file *file)
1068{
1069 file->private_data = inode->i_private;
1070 return 0;

--- 9 unchanged lines hidden (view full) ---

1080 ssize_t ret;
1081 struct snd_soc_dapm_path *p = NULL;
1082
1083 buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
1084 if (!buf)
1085 return -ENOMEM;
1086
1087 in = is_connected_input_ep(w);
1038 dapm_clear_walk(w->codec);
1088 dapm_clear_walk(w->dapm);
1039 out = is_connected_output_ep(w);
1089 out = is_connected_output_ep(w);
1040 dapm_clear_walk(w->codec);
1090 dapm_clear_walk(w->dapm);
1041
1042 ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d",
1043 w->name, w->power ? "On" : "Off", in, out);
1044
1045 if (w->reg >= 0)
1046 ret += snprintf(buf + ret, PAGE_SIZE - ret,
1047 " - R%d(0x%x) bit %d",
1048 w->reg, w->reg, w->shift);

--- 33 unchanged lines hidden (view full) ---

1082}
1083
1084static const struct file_operations dapm_widget_power_fops = {
1085 .open = dapm_widget_power_open_file,
1086 .read = dapm_widget_power_read_file,
1087 .llseek = default_llseek,
1088};
1089
1091
1092 ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d",
1093 w->name, w->power ? "On" : "Off", in, out);
1094
1095 if (w->reg >= 0)
1096 ret += snprintf(buf + ret, PAGE_SIZE - ret,
1097 " - R%d(0x%x) bit %d",
1098 w->reg, w->reg, w->shift);

--- 33 unchanged lines hidden (view full) ---

1132}
1133
1134static const struct file_operations dapm_widget_power_fops = {
1135 .open = dapm_widget_power_open_file,
1136 .read = dapm_widget_power_read_file,
1137 .llseek = default_llseek,
1138};
1139
1090void snd_soc_dapm_debugfs_init(struct snd_soc_codec *codec)
1140void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm)
1091{
1092 struct snd_soc_dapm_widget *w;
1093 struct dentry *d;
1094
1141{
1142 struct snd_soc_dapm_widget *w;
1143 struct dentry *d;
1144
1095 if (!codec->debugfs_dapm)
1145 if (!dapm->debugfs_dapm)
1096 return;
1097
1146 return;
1147
1098 list_for_each_entry(w, &codec->dapm_widgets, list) {
1148 list_for_each_entry(w, &dapm->widgets, list) {
1099 if (!w->name)
1100 continue;
1101
1102 d = debugfs_create_file(w->name, 0444,
1149 if (!w->name)
1150 continue;
1151
1152 d = debugfs_create_file(w->name, 0444,
1103 codec->debugfs_dapm, w,
1153 dapm->debugfs_dapm, w,
1104 &dapm_widget_power_fops);
1105 if (!d)
1154 &dapm_widget_power_fops);
1155 if (!d)
1106 printk(KERN_WARNING
1107 "ASoC: Failed to create %s debugfs file\n",
1108 w->name);
1156 dev_warn(w->dapm->dev,
1157 "ASoC: Failed to create %s debugfs file\n",
1158 w->name);
1109 }
1110}
1111#else
1159 }
1160}
1161#else
1112void snd_soc_dapm_debugfs_init(struct snd_soc_codec *codec)
1162void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm)
1113{
1114}
1115#endif
1116
1117/* test and update the power status of a mux widget */
1118static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
1119 struct snd_kcontrol *kcontrol, int change,
1120 int mux, struct soc_enum *e)

--- 4 unchanged lines hidden (view full) ---

1125 if (widget->id != snd_soc_dapm_mux &&
1126 widget->id != snd_soc_dapm_value_mux)
1127 return -ENODEV;
1128
1129 if (!change)
1130 return 0;
1131
1132 /* find dapm widget path assoc with kcontrol */
1163{
1164}
1165#endif
1166
1167/* test and update the power status of a mux widget */
1168static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
1169 struct snd_kcontrol *kcontrol, int change,
1170 int mux, struct soc_enum *e)

--- 4 unchanged lines hidden (view full) ---

1175 if (widget->id != snd_soc_dapm_mux &&
1176 widget->id != snd_soc_dapm_value_mux)
1177 return -ENODEV;
1178
1179 if (!change)
1180 return 0;
1181
1182 /* find dapm widget path assoc with kcontrol */
1133 list_for_each_entry(path, &widget->codec->dapm_paths, list) {
1183 list_for_each_entry(path, &widget->dapm->card->paths, list) {
1134 if (path->kcontrol != kcontrol)
1135 continue;
1136
1137 if (!path->name || !e->texts[mux])
1138 continue;
1139
1140 found = 1;
1141 /* we now need to match the string in the enum to the path */
1142 if (!(strcmp(path->name, e->texts[mux])))
1143 path->connect = 1; /* new connection */
1144 else
1145 path->connect = 0; /* old connection must be powered down */
1146 }
1147
1148 if (found)
1184 if (path->kcontrol != kcontrol)
1185 continue;
1186
1187 if (!path->name || !e->texts[mux])
1188 continue;
1189
1190 found = 1;
1191 /* we now need to match the string in the enum to the path */
1192 if (!(strcmp(path->name, e->texts[mux])))
1193 path->connect = 1; /* new connection */
1194 else
1195 path->connect = 0; /* old connection must be powered down */
1196 }
1197
1198 if (found)
1149 dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP);
1199 dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
1150
1151 return 0;
1152}
1153
1154/* test and update the power status of a mixer or switch widget */
1155static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
1156 struct snd_kcontrol *kcontrol, int connect)
1157{
1158 struct snd_soc_dapm_path *path;
1159 int found = 0;
1160
1161 if (widget->id != snd_soc_dapm_mixer &&
1162 widget->id != snd_soc_dapm_mixer_named_ctl &&
1163 widget->id != snd_soc_dapm_switch)
1164 return -ENODEV;
1165
1166 /* find dapm widget path assoc with kcontrol */
1200
1201 return 0;
1202}
1203
1204/* test and update the power status of a mixer or switch widget */
1205static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
1206 struct snd_kcontrol *kcontrol, int connect)
1207{
1208 struct snd_soc_dapm_path *path;
1209 int found = 0;
1210
1211 if (widget->id != snd_soc_dapm_mixer &&
1212 widget->id != snd_soc_dapm_mixer_named_ctl &&
1213 widget->id != snd_soc_dapm_switch)
1214 return -ENODEV;
1215
1216 /* find dapm widget path assoc with kcontrol */
1167 list_for_each_entry(path, &widget->codec->dapm_paths, list) {
1217 list_for_each_entry(path, &widget->dapm->card->paths, list) {
1168 if (path->kcontrol != kcontrol)
1169 continue;
1170
1171 /* found, now check type */
1172 found = 1;
1173 path->connect = connect;
1174 break;
1175 }
1176
1177 if (found)
1218 if (path->kcontrol != kcontrol)
1219 continue;
1220
1221 /* found, now check type */
1222 found = 1;
1223 path->connect = connect;
1224 break;
1225 }
1226
1227 if (found)
1178 dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP);
1228 dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
1179
1180 return 0;
1181}
1182
1183/* show dapm widget status in sys fs */
1184static ssize_t dapm_widget_show(struct device *dev,
1185 struct device_attribute *attr, char *buf)
1186{
1187 struct snd_soc_pcm_runtime *rtd =
1188 container_of(dev, struct snd_soc_pcm_runtime, dev);
1189 struct snd_soc_codec *codec =rtd->codec;
1190 struct snd_soc_dapm_widget *w;
1191 int count = 0;
1192 char *state = "not set";
1193
1229
1230 return 0;
1231}
1232
1233/* show dapm widget status in sys fs */
1234static ssize_t dapm_widget_show(struct device *dev,
1235 struct device_attribute *attr, char *buf)
1236{
1237 struct snd_soc_pcm_runtime *rtd =
1238 container_of(dev, struct snd_soc_pcm_runtime, dev);
1239 struct snd_soc_codec *codec =rtd->codec;
1240 struct snd_soc_dapm_widget *w;
1241 int count = 0;
1242 char *state = "not set";
1243
1194 list_for_each_entry(w, &codec->dapm_widgets, list) {
1244 list_for_each_entry(w, &codec->dapm.widgets, list) {
1195
1196 /* only display widgets that burnm power */
1197 switch (w->id) {
1198 case snd_soc_dapm_hp:
1199 case snd_soc_dapm_mic:
1200 case snd_soc_dapm_spk:
1201 case snd_soc_dapm_line:
1202 case snd_soc_dapm_micbias:
1203 case snd_soc_dapm_dac:
1204 case snd_soc_dapm_adc:
1205 case snd_soc_dapm_pga:
1245
1246 /* only display widgets that burnm power */
1247 switch (w->id) {
1248 case snd_soc_dapm_hp:
1249 case snd_soc_dapm_mic:
1250 case snd_soc_dapm_spk:
1251 case snd_soc_dapm_line:
1252 case snd_soc_dapm_micbias:
1253 case snd_soc_dapm_dac:
1254 case snd_soc_dapm_adc:
1255 case snd_soc_dapm_pga:
1256 case snd_soc_dapm_out_drv:
1206 case snd_soc_dapm_mixer:
1207 case snd_soc_dapm_mixer_named_ctl:
1208 case snd_soc_dapm_supply:
1209 if (w->name)
1210 count += sprintf(buf + count, "%s: %s\n",
1211 w->name, w->power ? "On":"Off");
1212 break;
1213 default:
1214 break;
1215 }
1216 }
1217
1257 case snd_soc_dapm_mixer:
1258 case snd_soc_dapm_mixer_named_ctl:
1259 case snd_soc_dapm_supply:
1260 if (w->name)
1261 count += sprintf(buf + count, "%s: %s\n",
1262 w->name, w->power ? "On":"Off");
1263 break;
1264 default:
1265 break;
1266 }
1267 }
1268
1218 switch (codec->bias_level) {
1269 switch (codec->dapm.bias_level) {
1219 case SND_SOC_BIAS_ON:
1220 state = "On";
1221 break;
1222 case SND_SOC_BIAS_PREPARE:
1223 state = "Prepare";
1224 break;
1225 case SND_SOC_BIAS_STANDBY:
1226 state = "Standby";

--- 15 unchanged lines hidden (view full) ---

1242}
1243
1244static void snd_soc_dapm_sys_remove(struct device *dev)
1245{
1246 device_remove_file(dev, &dev_attr_dapm_widget);
1247}
1248
1249/* free all dapm widgets and resources */
1270 case SND_SOC_BIAS_ON:
1271 state = "On";
1272 break;
1273 case SND_SOC_BIAS_PREPARE:
1274 state = "Prepare";
1275 break;
1276 case SND_SOC_BIAS_STANDBY:
1277 state = "Standby";

--- 15 unchanged lines hidden (view full) ---

1293}
1294
1295static void snd_soc_dapm_sys_remove(struct device *dev)
1296{
1297 device_remove_file(dev, &dev_attr_dapm_widget);
1298}
1299
1300/* free all dapm widgets and resources */
1250static void dapm_free_widgets(struct snd_soc_codec *codec)
1301static void dapm_free_widgets(struct snd_soc_dapm_context *dapm)
1251{
1252 struct snd_soc_dapm_widget *w, *next_w;
1253 struct snd_soc_dapm_path *p, *next_p;
1254
1302{
1303 struct snd_soc_dapm_widget *w, *next_w;
1304 struct snd_soc_dapm_path *p, *next_p;
1305
1255 list_for_each_entry_safe(w, next_w, &codec->dapm_widgets, list) {
1306 list_for_each_entry_safe(w, next_w, &dapm->widgets, list) {
1256 list_del(&w->list);
1307 list_del(&w->list);
1308 /*
1309 * remove source and sink paths associated to this widget.
1310 * While removing the path, remove reference to it from both
1311 * source and sink widgets so that path is removed only once.
1312 */
1313 list_for_each_entry_safe(p, next_p, &w->sources, list_sink) {
1314 list_del(&p->list_sink);
1315 list_del(&p->list_source);
1316 list_del(&p->list);
1317 kfree(p->long_name);
1318 kfree(p);
1319 }
1320 list_for_each_entry_safe(p, next_p, &w->sinks, list_source) {
1321 list_del(&p->list_sink);
1322 list_del(&p->list_source);
1323 list_del(&p->list);
1324 kfree(p->long_name);
1325 kfree(p);
1326 }
1327 kfree(w->name);
1257 kfree(w);
1258 }
1328 kfree(w);
1329 }
1259
1260 list_for_each_entry_safe(p, next_p, &codec->dapm_paths, list) {
1261 list_del(&p->list);
1262 kfree(p->long_name);
1263 kfree(p);
1264 }
1265}
1266
1330}
1331
1267static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec,
1332static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
1268 const char *pin, int status)
1269{
1270 struct snd_soc_dapm_widget *w;
1271
1333 const char *pin, int status)
1334{
1335 struct snd_soc_dapm_widget *w;
1336
1272 list_for_each_entry(w, &codec->dapm_widgets, list) {
1337 list_for_each_entry(w, &dapm->widgets, list) {
1273 if (!strcmp(w->name, pin)) {
1338 if (!strcmp(w->name, pin)) {
1274 pr_debug("dapm: %s: pin %s\n", codec->name, pin);
1339 dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n",
1340 pin, status);
1275 w->connected = status;
1276 /* Allow disabling of forced pins */
1277 if (status == 0)
1278 w->force = 0;
1279 return 0;
1280 }
1281 }
1282
1341 w->connected = status;
1342 /* Allow disabling of forced pins */
1343 if (status == 0)
1344 w->force = 0;
1345 return 0;
1346 }
1347 }
1348
1283 pr_err("dapm: %s: configuring unknown pin %s\n", codec->name, pin);
1349 dev_err(dapm->dev, "dapm: unknown pin %s\n", pin);
1284 return -EINVAL;
1285}
1286
1287/**
1288 * snd_soc_dapm_sync - scan and power dapm paths
1350 return -EINVAL;
1351}
1352
1353/**
1354 * snd_soc_dapm_sync - scan and power dapm paths
1289 * @codec: audio codec
1355 * @dapm: DAPM context
1290 *
1291 * Walks all dapm audio paths and powers widgets according to their
1292 * stream or path usage.
1293 *
1294 * Returns 0 for success.
1295 */
1356 *
1357 * Walks all dapm audio paths and powers widgets according to their
1358 * stream or path usage.
1359 *
1360 * Returns 0 for success.
1361 */
1296int snd_soc_dapm_sync(struct snd_soc_codec *codec)
1362int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm)
1297{
1363{
1298 return dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP);
1364 return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP);
1299}
1300EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
1301
1365}
1366EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
1367
1302static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
1368static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
1303 const struct snd_soc_dapm_route *route)
1304{
1305 struct snd_soc_dapm_path *path;
1306 struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w;
1369 const struct snd_soc_dapm_route *route)
1370{
1371 struct snd_soc_dapm_path *path;
1372 struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w;
1307 const char *sink = route->sink;
1373 const char *sink;
1308 const char *control = route->control;
1374 const char *control = route->control;
1309 const char *source = route->source;
1375 const char *source;
1376 char prefixed_sink[80];
1377 char prefixed_source[80];
1310 int ret = 0;
1311
1378 int ret = 0;
1379
1380 if (dapm->codec->name_prefix) {
1381 snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s",
1382 dapm->codec->name_prefix, route->sink);
1383 sink = prefixed_sink;
1384 snprintf(prefixed_source, sizeof(prefixed_source), "%s %s",
1385 dapm->codec->name_prefix, route->source);
1386 source = prefixed_source;
1387 } else {
1388 sink = route->sink;
1389 source = route->source;
1390 }
1391
1312 /* find src and dest widgets */
1392 /* find src and dest widgets */
1313 list_for_each_entry(w, &codec->dapm_widgets, list) {
1393 list_for_each_entry(w, &dapm->widgets, list) {
1314
1315 if (!wsink && !(strcmp(w->name, sink))) {
1316 wsink = w;
1317 continue;
1318 }
1319 if (!wsource && !(strcmp(w->name, source))) {
1320 wsource = w;
1321 }

--- 26 unchanged lines hidden (view full) ---

1348 wsink->id == snd_soc_dapm_hp ||
1349 wsink->id == snd_soc_dapm_line ||
1350 wsink->id == snd_soc_dapm_input)
1351 wsource->ext = 1;
1352 }
1353
1354 /* connect static paths */
1355 if (control == NULL) {
1394
1395 if (!wsink && !(strcmp(w->name, sink))) {
1396 wsink = w;
1397 continue;
1398 }
1399 if (!wsource && !(strcmp(w->name, source))) {
1400 wsource = w;
1401 }

--- 26 unchanged lines hidden (view full) ---

1428 wsink->id == snd_soc_dapm_hp ||
1429 wsink->id == snd_soc_dapm_line ||
1430 wsink->id == snd_soc_dapm_input)
1431 wsource->ext = 1;
1432 }
1433
1434 /* connect static paths */
1435 if (control == NULL) {
1356 list_add(&path->list, &codec->dapm_paths);
1436 list_add(&path->list, &dapm->card->paths);
1357 list_add(&path->list_sink, &wsink->sources);
1358 list_add(&path->list_source, &wsource->sinks);
1359 path->connect = 1;
1360 return 0;
1361 }
1362
1363 /* connect dynamic paths */
1364 switch(wsink->id) {
1365 case snd_soc_dapm_adc:
1366 case snd_soc_dapm_dac:
1367 case snd_soc_dapm_pga:
1437 list_add(&path->list_sink, &wsink->sources);
1438 list_add(&path->list_source, &wsource->sinks);
1439 path->connect = 1;
1440 return 0;
1441 }
1442
1443 /* connect dynamic paths */
1444 switch(wsink->id) {
1445 case snd_soc_dapm_adc:
1446 case snd_soc_dapm_dac:
1447 case snd_soc_dapm_pga:
1448 case snd_soc_dapm_out_drv:
1368 case snd_soc_dapm_input:
1369 case snd_soc_dapm_output:
1370 case snd_soc_dapm_micbias:
1371 case snd_soc_dapm_vmid:
1372 case snd_soc_dapm_pre:
1373 case snd_soc_dapm_post:
1374 case snd_soc_dapm_supply:
1375 case snd_soc_dapm_aif_in:
1376 case snd_soc_dapm_aif_out:
1449 case snd_soc_dapm_input:
1450 case snd_soc_dapm_output:
1451 case snd_soc_dapm_micbias:
1452 case snd_soc_dapm_vmid:
1453 case snd_soc_dapm_pre:
1454 case snd_soc_dapm_post:
1455 case snd_soc_dapm_supply:
1456 case snd_soc_dapm_aif_in:
1457 case snd_soc_dapm_aif_out:
1377 list_add(&path->list, &codec->dapm_paths);
1458 list_add(&path->list, &dapm->card->paths);
1378 list_add(&path->list_sink, &wsink->sources);
1379 list_add(&path->list_source, &wsource->sinks);
1380 path->connect = 1;
1381 return 0;
1382 case snd_soc_dapm_mux:
1383 case snd_soc_dapm_value_mux:
1459 list_add(&path->list_sink, &wsink->sources);
1460 list_add(&path->list_source, &wsource->sinks);
1461 path->connect = 1;
1462 return 0;
1463 case snd_soc_dapm_mux:
1464 case snd_soc_dapm_value_mux:
1384 ret = dapm_connect_mux(codec, wsource, wsink, path, control,
1465 ret = dapm_connect_mux(dapm, wsource, wsink, path, control,
1385 &wsink->kcontrols[0]);
1386 if (ret != 0)
1387 goto err;
1388 break;
1389 case snd_soc_dapm_switch:
1390 case snd_soc_dapm_mixer:
1391 case snd_soc_dapm_mixer_named_ctl:
1466 &wsink->kcontrols[0]);
1467 if (ret != 0)
1468 goto err;
1469 break;
1470 case snd_soc_dapm_switch:
1471 case snd_soc_dapm_mixer:
1472 case snd_soc_dapm_mixer_named_ctl:
1392 ret = dapm_connect_mixer(codec, wsource, wsink, path, control);
1473 ret = dapm_connect_mixer(dapm, wsource, wsink, path, control);
1393 if (ret != 0)
1394 goto err;
1395 break;
1396 case snd_soc_dapm_hp:
1397 case snd_soc_dapm_mic:
1398 case snd_soc_dapm_line:
1399 case snd_soc_dapm_spk:
1474 if (ret != 0)
1475 goto err;
1476 break;
1477 case snd_soc_dapm_hp:
1478 case snd_soc_dapm_mic:
1479 case snd_soc_dapm_line:
1480 case snd_soc_dapm_spk:
1400 list_add(&path->list, &codec->dapm_paths);
1481 list_add(&path->list, &dapm->card->paths);
1401 list_add(&path->list_sink, &wsink->sources);
1402 list_add(&path->list_source, &wsource->sinks);
1403 path->connect = 0;
1404 return 0;
1405 }
1406 return 0;
1407
1408err:
1482 list_add(&path->list_sink, &wsink->sources);
1483 list_add(&path->list_source, &wsource->sinks);
1484 path->connect = 0;
1485 return 0;
1486 }
1487 return 0;
1488
1489err:
1409 printk(KERN_WARNING "asoc: no dapm match for %s --> %s --> %s\n", source,
1410 control, sink);
1490 dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n",
1491 source, control, sink);
1411 kfree(path);
1412 return ret;
1413}
1414
1415/**
1416 * snd_soc_dapm_add_routes - Add routes between DAPM widgets
1492 kfree(path);
1493 return ret;
1494}
1495
1496/**
1497 * snd_soc_dapm_add_routes - Add routes between DAPM widgets
1417 * @codec: codec
1498 * @dapm: DAPM context
1418 * @route: audio routes
1419 * @num: number of routes
1420 *
1421 * Connects 2 dapm widgets together via a named audio path. The sink is
1422 * the widget receiving the audio signal, whilst the source is the sender
1423 * of the audio signal.
1424 *
1425 * Returns 0 for success else error. On error all resources can be freed
1426 * with a call to snd_soc_card_free().
1427 */
1499 * @route: audio routes
1500 * @num: number of routes
1501 *
1502 * Connects 2 dapm widgets together via a named audio path. The sink is
1503 * the widget receiving the audio signal, whilst the source is the sender
1504 * of the audio signal.
1505 *
1506 * Returns 0 for success else error. On error all resources can be freed
1507 * with a call to snd_soc_card_free().
1508 */
1428int snd_soc_dapm_add_routes(struct snd_soc_codec *codec,
1509int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
1429 const struct snd_soc_dapm_route *route, int num)
1430{
1431 int i, ret;
1432
1433 for (i = 0; i < num; i++) {
1510 const struct snd_soc_dapm_route *route, int num)
1511{
1512 int i, ret;
1513
1514 for (i = 0; i < num; i++) {
1434 ret = snd_soc_dapm_add_route(codec, route);
1515 ret = snd_soc_dapm_add_route(dapm, route);
1435 if (ret < 0) {
1516 if (ret < 0) {
1436 printk(KERN_ERR "Failed to add route %s->%s\n",
1437 route->source,
1438 route->sink);
1517 dev_err(dapm->dev, "Failed to add route %s->%s\n",
1518 route->source, route->sink);
1439 return ret;
1440 }
1441 route++;
1442 }
1443
1444 return 0;
1445}
1446EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes);
1447
1448/**
1449 * snd_soc_dapm_new_widgets - add new dapm widgets
1519 return ret;
1520 }
1521 route++;
1522 }
1523
1524 return 0;
1525}
1526EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes);
1527
1528/**
1529 * snd_soc_dapm_new_widgets - add new dapm widgets
1450 * @codec: audio codec
1530 * @dapm: DAPM context
1451 *
1452 * Checks the codec for any new dapm widgets and creates them if found.
1453 *
1454 * Returns 0 for success.
1455 */
1531 *
1532 * Checks the codec for any new dapm widgets and creates them if found.
1533 *
1534 * Returns 0 for success.
1535 */
1456int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec)
1536int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm)
1457{
1458 struct snd_soc_dapm_widget *w;
1459
1537{
1538 struct snd_soc_dapm_widget *w;
1539
1460 list_for_each_entry(w, &codec->dapm_widgets, list)
1540 list_for_each_entry(w, &dapm->widgets, list)
1461 {
1462 if (w->new)
1463 continue;
1464
1465 switch(w->id) {
1466 case snd_soc_dapm_switch:
1467 case snd_soc_dapm_mixer:
1468 case snd_soc_dapm_mixer_named_ctl:
1469 w->power_check = dapm_generic_check_power;
1541 {
1542 if (w->new)
1543 continue;
1544
1545 switch(w->id) {
1546 case snd_soc_dapm_switch:
1547 case snd_soc_dapm_mixer:
1548 case snd_soc_dapm_mixer_named_ctl:
1549 w->power_check = dapm_generic_check_power;
1470 dapm_new_mixer(codec, w);
1550 dapm_new_mixer(dapm, w);
1471 break;
1472 case snd_soc_dapm_mux:
1473 case snd_soc_dapm_value_mux:
1474 w->power_check = dapm_generic_check_power;
1551 break;
1552 case snd_soc_dapm_mux:
1553 case snd_soc_dapm_value_mux:
1554 w->power_check = dapm_generic_check_power;
1475 dapm_new_mux(codec, w);
1555 dapm_new_mux(dapm, w);
1476 break;
1477 case snd_soc_dapm_adc:
1478 case snd_soc_dapm_aif_out:
1479 w->power_check = dapm_adc_check_power;
1480 break;
1481 case snd_soc_dapm_dac:
1482 case snd_soc_dapm_aif_in:
1483 w->power_check = dapm_dac_check_power;
1484 break;
1485 case snd_soc_dapm_pga:
1556 break;
1557 case snd_soc_dapm_adc:
1558 case snd_soc_dapm_aif_out:
1559 w->power_check = dapm_adc_check_power;
1560 break;
1561 case snd_soc_dapm_dac:
1562 case snd_soc_dapm_aif_in:
1563 w->power_check = dapm_dac_check_power;
1564 break;
1565 case snd_soc_dapm_pga:
1566 case snd_soc_dapm_out_drv:
1486 w->power_check = dapm_generic_check_power;
1567 w->power_check = dapm_generic_check_power;
1487 dapm_new_pga(codec, w);
1568 dapm_new_pga(dapm, w);
1488 break;
1489 case snd_soc_dapm_input:
1490 case snd_soc_dapm_output:
1491 case snd_soc_dapm_micbias:
1492 case snd_soc_dapm_spk:
1493 case snd_soc_dapm_hp:
1494 case snd_soc_dapm_mic:
1495 case snd_soc_dapm_line:

--- 4 unchanged lines hidden (view full) ---

1500 case snd_soc_dapm_vmid:
1501 case snd_soc_dapm_pre:
1502 case snd_soc_dapm_post:
1503 break;
1504 }
1505 w->new = 1;
1506 }
1507
1569 break;
1570 case snd_soc_dapm_input:
1571 case snd_soc_dapm_output:
1572 case snd_soc_dapm_micbias:
1573 case snd_soc_dapm_spk:
1574 case snd_soc_dapm_hp:
1575 case snd_soc_dapm_mic:
1576 case snd_soc_dapm_line:

--- 4 unchanged lines hidden (view full) ---

1581 case snd_soc_dapm_vmid:
1582 case snd_soc_dapm_pre:
1583 case snd_soc_dapm_post:
1584 break;
1585 }
1586 w->new = 1;
1587 }
1588
1508 dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP);
1589 dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP);
1509 return 0;
1510}
1511EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets);
1512
1513/**
1514 * snd_soc_dapm_get_volsw - dapm mixer get callback
1515 * @kcontrol: mixer control
1516 * @ucontrol: control element information

--- 367 unchanged lines hidden (view full) ---

1884 struct snd_ctl_elem_value *ucontrol)
1885{
1886 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1887 const char *pin = (const char *)kcontrol->private_value;
1888
1889 mutex_lock(&codec->mutex);
1890
1891 ucontrol->value.integer.value[0] =
1590 return 0;
1591}
1592EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets);
1593
1594/**
1595 * snd_soc_dapm_get_volsw - dapm mixer get callback
1596 * @kcontrol: mixer control
1597 * @ucontrol: control element information

--- 367 unchanged lines hidden (view full) ---

1965 struct snd_ctl_elem_value *ucontrol)
1966{
1967 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1968 const char *pin = (const char *)kcontrol->private_value;
1969
1970 mutex_lock(&codec->mutex);
1971
1972 ucontrol->value.integer.value[0] =
1892 snd_soc_dapm_get_pin_status(codec, pin);
1973 snd_soc_dapm_get_pin_status(&codec->dapm, pin);
1893
1894 mutex_unlock(&codec->mutex);
1895
1896 return 0;
1897}
1898EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch);
1899
1900/**

--- 6 unchanged lines hidden (view full) ---

1907 struct snd_ctl_elem_value *ucontrol)
1908{
1909 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1910 const char *pin = (const char *)kcontrol->private_value;
1911
1912 mutex_lock(&codec->mutex);
1913
1914 if (ucontrol->value.integer.value[0])
1974
1975 mutex_unlock(&codec->mutex);
1976
1977 return 0;
1978}
1979EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch);
1980
1981/**

--- 6 unchanged lines hidden (view full) ---

1988 struct snd_ctl_elem_value *ucontrol)
1989{
1990 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1991 const char *pin = (const char *)kcontrol->private_value;
1992
1993 mutex_lock(&codec->mutex);
1994
1995 if (ucontrol->value.integer.value[0])
1915 snd_soc_dapm_enable_pin(codec, pin);
1996 snd_soc_dapm_enable_pin(&codec->dapm, pin);
1916 else
1997 else
1917 snd_soc_dapm_disable_pin(codec, pin);
1998 snd_soc_dapm_disable_pin(&codec->dapm, pin);
1918
1999
1919 snd_soc_dapm_sync(codec);
2000 snd_soc_dapm_sync(&codec->dapm);
1920
1921 mutex_unlock(&codec->mutex);
1922
1923 return 0;
1924}
1925EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
1926
1927/**
1928 * snd_soc_dapm_new_control - create new dapm control
2001
2002 mutex_unlock(&codec->mutex);
2003
2004 return 0;
2005}
2006EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
2007
2008/**
2009 * snd_soc_dapm_new_control - create new dapm control
1929 * @codec: audio codec
2010 * @dapm: DAPM context
1930 * @widget: widget template
1931 *
1932 * Creates a new dapm control based upon the template.
1933 *
1934 * Returns 0 for success else error.
1935 */
2011 * @widget: widget template
2012 *
2013 * Creates a new dapm control based upon the template.
2014 *
2015 * Returns 0 for success else error.
2016 */
1936int snd_soc_dapm_new_control(struct snd_soc_codec *codec,
2017int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
1937 const struct snd_soc_dapm_widget *widget)
1938{
1939 struct snd_soc_dapm_widget *w;
2018 const struct snd_soc_dapm_widget *widget)
2019{
2020 struct snd_soc_dapm_widget *w;
2021 size_t name_len;
1940
1941 if ((w = dapm_cnew_widget(widget)) == NULL)
1942 return -ENOMEM;
1943
2022
2023 if ((w = dapm_cnew_widget(widget)) == NULL)
2024 return -ENOMEM;
2025
1944 w->codec = codec;
2026 name_len = strlen(widget->name) + 1;
2027 if (dapm->codec->name_prefix)
2028 name_len += 1 + strlen(dapm->codec->name_prefix);
2029 w->name = kmalloc(name_len, GFP_KERNEL);
2030 if (w->name == NULL) {
2031 kfree(w);
2032 return -ENOMEM;
2033 }
2034 if (dapm->codec->name_prefix)
2035 snprintf(w->name, name_len, "%s %s",
2036 dapm->codec->name_prefix, widget->name);
2037 else
2038 snprintf(w->name, name_len, "%s", widget->name);
2039
2040 w->dapm = dapm;
2041 w->codec = dapm->codec;
1945 INIT_LIST_HEAD(&w->sources);
1946 INIT_LIST_HEAD(&w->sinks);
1947 INIT_LIST_HEAD(&w->list);
2042 INIT_LIST_HEAD(&w->sources);
2043 INIT_LIST_HEAD(&w->sinks);
2044 INIT_LIST_HEAD(&w->list);
1948 list_add(&w->list, &codec->dapm_widgets);
2045 list_add(&w->list, &dapm->widgets);
1949
1950 /* machine layer set ups unconnected pins and insertions */
1951 w->connected = 1;
1952 return 0;
1953}
1954EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control);
1955
1956/**
1957 * snd_soc_dapm_new_controls - create new dapm controls
2046
2047 /* machine layer set ups unconnected pins and insertions */
2048 w->connected = 1;
2049 return 0;
2050}
2051EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control);
2052
2053/**
2054 * snd_soc_dapm_new_controls - create new dapm controls
1958 * @codec: audio codec
2055 * @dapm: DAPM context
1959 * @widget: widget array
1960 * @num: number of widgets
1961 *
1962 * Creates new DAPM controls based upon the templates.
1963 *
1964 * Returns 0 for success else error.
1965 */
2056 * @widget: widget array
2057 * @num: number of widgets
2058 *
2059 * Creates new DAPM controls based upon the templates.
2060 *
2061 * Returns 0 for success else error.
2062 */
1966int snd_soc_dapm_new_controls(struct snd_soc_codec *codec,
2063int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
1967 const struct snd_soc_dapm_widget *widget,
1968 int num)
1969{
1970 int i, ret;
1971
1972 for (i = 0; i < num; i++) {
2064 const struct snd_soc_dapm_widget *widget,
2065 int num)
2066{
2067 int i, ret;
2068
2069 for (i = 0; i < num; i++) {
1973 ret = snd_soc_dapm_new_control(codec, widget);
2070 ret = snd_soc_dapm_new_control(dapm, widget);
1974 if (ret < 0) {
2071 if (ret < 0) {
1975 printk(KERN_ERR
1976 "ASoC: Failed to create DAPM control %s: %d\n",
1977 widget->name, ret);
2072 dev_err(dapm->dev,
2073 "ASoC: Failed to create DAPM control %s: %d\n",
2074 widget->name, ret);
1978 return ret;
1979 }
1980 widget++;
1981 }
1982 return 0;
1983}
1984EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls);
1985
2075 return ret;
2076 }
2077 widget++;
2078 }
2079 return 0;
2080}
2081EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls);
2082
1986
1987/**
1988 * snd_soc_dapm_stream_event - send a stream event to the dapm core
1989 * @codec: audio codec
1990 * @stream: stream name
1991 * @event: stream event
1992 *
1993 * Sends a stream event to the dapm core. The core then makes any
1994 * necessary widget power changes.
1995 *
1996 * Returns 0 for success else error.
1997 */
1998int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd,
2083static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm,
1999 const char *stream, int event)
2000{
2084 const char *stream, int event)
2085{
2001 struct snd_soc_codec *codec = rtd->codec;
2002 struct snd_soc_dapm_widget *w;
2003
2086 struct snd_soc_dapm_widget *w;
2087
2004 if (stream == NULL)
2005 return 0;
2006
2007 mutex_lock(&codec->mutex);
2008 list_for_each_entry(w, &codec->dapm_widgets, list)
2088 list_for_each_entry(w, &dapm->widgets, list)
2009 {
2010 if (!w->sname)
2011 continue;
2089 {
2090 if (!w->sname)
2091 continue;
2012 pr_debug("widget %s\n %s stream %s event %d\n",
2013 w->name, w->sname, stream, event);
2092 dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n",
2093 w->name, w->sname, stream, event);
2014 if (strstr(w->sname, stream)) {
2015 switch(event) {
2016 case SND_SOC_DAPM_STREAM_START:
2017 w->active = 1;
2018 break;
2019 case SND_SOC_DAPM_STREAM_STOP:
2020 w->active = 0;
2021 break;
2022 case SND_SOC_DAPM_STREAM_SUSPEND:
2023 case SND_SOC_DAPM_STREAM_RESUME:
2024 case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
2025 case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
2026 break;
2027 }
2028 }
2029 }
2030
2094 if (strstr(w->sname, stream)) {
2095 switch(event) {
2096 case SND_SOC_DAPM_STREAM_START:
2097 w->active = 1;
2098 break;
2099 case SND_SOC_DAPM_STREAM_STOP:
2100 w->active = 0;
2101 break;
2102 case SND_SOC_DAPM_STREAM_SUSPEND:
2103 case SND_SOC_DAPM_STREAM_RESUME:
2104 case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
2105 case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
2106 break;
2107 }
2108 }
2109 }
2110
2031 dapm_power_widgets(codec, event);
2111 dapm_power_widgets(dapm, event);
2112}
2113
2114/**
2115 * snd_soc_dapm_stream_event - send a stream event to the dapm core
2116 * @rtd: PCM runtime data
2117 * @stream: stream name
2118 * @event: stream event
2119 *
2120 * Sends a stream event to the dapm core. The core then makes any
2121 * necessary widget power changes.
2122 *
2123 * Returns 0 for success else error.
2124 */
2125int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd,
2126 const char *stream, int event)
2127{
2128 struct snd_soc_codec *codec = rtd->codec;
2129
2130 if (stream == NULL)
2131 return 0;
2132
2133 mutex_lock(&codec->mutex);
2134 soc_dapm_stream_event(&codec->dapm, stream, event);
2032 mutex_unlock(&codec->mutex);
2033 return 0;
2034}
2035EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
2036
2037/**
2038 * snd_soc_dapm_enable_pin - enable pin.
2135 mutex_unlock(&codec->mutex);
2136 return 0;
2137}
2138EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
2139
2140/**
2141 * snd_soc_dapm_enable_pin - enable pin.
2039 * @codec: SoC codec
2142 * @dapm: DAPM context
2040 * @pin: pin name
2041 *
2042 * Enables input/output pin and its parents or children widgets iff there is
2043 * a valid audio route and active audio stream.
2044 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
2045 * do any widget power switching.
2046 */
2143 * @pin: pin name
2144 *
2145 * Enables input/output pin and its parents or children widgets iff there is
2146 * a valid audio route and active audio stream.
2147 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
2148 * do any widget power switching.
2149 */
2047int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin)
2150int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin)
2048{
2151{
2049 return snd_soc_dapm_set_pin(codec, pin, 1);
2152 return snd_soc_dapm_set_pin(dapm, pin, 1);
2050}
2051EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
2052
2053/**
2054 * snd_soc_dapm_force_enable_pin - force a pin to be enabled
2153}
2154EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
2155
2156/**
2157 * snd_soc_dapm_force_enable_pin - force a pin to be enabled
2055 * @codec: SoC codec
2158 * @dapm: DAPM context
2056 * @pin: pin name
2057 *
2058 * Enables input/output pin regardless of any other state. This is
2059 * intended for use with microphone bias supplies used in microphone
2060 * jack detection.
2061 *
2062 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
2063 * do any widget power switching.
2064 */
2159 * @pin: pin name
2160 *
2161 * Enables input/output pin regardless of any other state. This is
2162 * intended for use with microphone bias supplies used in microphone
2163 * jack detection.
2164 *
2165 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
2166 * do any widget power switching.
2167 */
2065int snd_soc_dapm_force_enable_pin(struct snd_soc_codec *codec, const char *pin)
2168int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
2169 const char *pin)
2066{
2067 struct snd_soc_dapm_widget *w;
2068
2170{
2171 struct snd_soc_dapm_widget *w;
2172
2069 list_for_each_entry(w, &codec->dapm_widgets, list) {
2173 list_for_each_entry(w, &dapm->widgets, list) {
2070 if (!strcmp(w->name, pin)) {
2174 if (!strcmp(w->name, pin)) {
2071 pr_debug("dapm: %s: pin %s\n", codec->name, pin);
2175 dev_dbg(w->dapm->dev,
2176 "dapm: force enable pin %s\n", pin);
2072 w->connected = 1;
2073 w->force = 1;
2074 return 0;
2075 }
2076 }
2077
2177 w->connected = 1;
2178 w->force = 1;
2179 return 0;
2180 }
2181 }
2182
2078 pr_err("dapm: %s: configuring unknown pin %s\n", codec->name, pin);
2183 dev_err(dapm->dev, "dapm: unknown pin %s\n", pin);
2079 return -EINVAL;
2080}
2081EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin);
2082
2083/**
2084 * snd_soc_dapm_disable_pin - disable pin.
2184 return -EINVAL;
2185}
2186EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin);
2187
2188/**
2189 * snd_soc_dapm_disable_pin - disable pin.
2085 * @codec: SoC codec
2190 * @dapm: DAPM context
2086 * @pin: pin name
2087 *
2088 * Disables input/output pin and its parents or children widgets.
2089 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
2090 * do any widget power switching.
2091 */
2191 * @pin: pin name
2192 *
2193 * Disables input/output pin and its parents or children widgets.
2194 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
2195 * do any widget power switching.
2196 */
2092int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin)
2197int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm,
2198 const char *pin)
2093{
2199{
2094 return snd_soc_dapm_set_pin(codec, pin, 0);
2200 return snd_soc_dapm_set_pin(dapm, pin, 0);
2095}
2096EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
2097
2098/**
2099 * snd_soc_dapm_nc_pin - permanently disable pin.
2201}
2202EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
2203
2204/**
2205 * snd_soc_dapm_nc_pin - permanently disable pin.
2100 * @codec: SoC codec
2206 * @dapm: DAPM context
2101 * @pin: pin name
2102 *
2103 * Marks the specified pin as being not connected, disabling it along
2104 * any parent or child widgets. At present this is identical to
2105 * snd_soc_dapm_disable_pin() but in future it will be extended to do
2106 * additional things such as disabling controls which only affect
2107 * paths through the pin.
2108 *
2109 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
2110 * do any widget power switching.
2111 */
2207 * @pin: pin name
2208 *
2209 * Marks the specified pin as being not connected, disabling it along
2210 * any parent or child widgets. At present this is identical to
2211 * snd_soc_dapm_disable_pin() but in future it will be extended to do
2212 * additional things such as disabling controls which only affect
2213 * paths through the pin.
2214 *
2215 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
2216 * do any widget power switching.
2217 */
2112int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin)
2218int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin)
2113{
2219{
2114 return snd_soc_dapm_set_pin(codec, pin, 0);
2220 return snd_soc_dapm_set_pin(dapm, pin, 0);
2115}
2116EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin);
2117
2118/**
2119 * snd_soc_dapm_get_pin_status - get audio pin status
2221}
2222EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin);
2223
2224/**
2225 * snd_soc_dapm_get_pin_status - get audio pin status
2120 * @codec: audio codec
2226 * @dapm: DAPM context
2121 * @pin: audio signal pin endpoint (or start point)
2122 *
2123 * Get audio pin status - connected or disconnected.
2124 *
2125 * Returns 1 for connected otherwise 0.
2126 */
2227 * @pin: audio signal pin endpoint (or start point)
2228 *
2229 * Get audio pin status - connected or disconnected.
2230 *
2231 * Returns 1 for connected otherwise 0.
2232 */
2127int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin)
2233int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
2234 const char *pin)
2128{
2129 struct snd_soc_dapm_widget *w;
2130
2235{
2236 struct snd_soc_dapm_widget *w;
2237
2131 list_for_each_entry(w, &codec->dapm_widgets, list) {
2238 list_for_each_entry(w, &dapm->widgets, list) {
2132 if (!strcmp(w->name, pin))
2133 return w->connected;
2134 }
2135
2136 return 0;
2137}
2138EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
2139
2140/**
2141 * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint
2239 if (!strcmp(w->name, pin))
2240 return w->connected;
2241 }
2242
2243 return 0;
2244}
2245EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
2246
2247/**
2248 * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint
2142 * @codec: audio codec
2249 * @dapm: DAPM context
2143 * @pin: audio signal pin endpoint (or start point)
2144 *
2145 * Mark the given endpoint or pin as ignoring suspend. When the
2146 * system is disabled a path between two endpoints flagged as ignoring
2147 * suspend will not be disabled. The path must already be enabled via
2148 * normal means at suspend time, it will not be turned on if it was not
2149 * already enabled.
2150 */
2250 * @pin: audio signal pin endpoint (or start point)
2251 *
2252 * Mark the given endpoint or pin as ignoring suspend. When the
2253 * system is disabled a path between two endpoints flagged as ignoring
2254 * suspend will not be disabled. The path must already be enabled via
2255 * normal means at suspend time, it will not be turned on if it was not
2256 * already enabled.
2257 */
2151int snd_soc_dapm_ignore_suspend(struct snd_soc_codec *codec, const char *pin)
2258int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
2259 const char *pin)
2152{
2153 struct snd_soc_dapm_widget *w;
2154
2260{
2261 struct snd_soc_dapm_widget *w;
2262
2155 list_for_each_entry(w, &codec->dapm_widgets, list) {
2263 list_for_each_entry(w, &dapm->widgets, list) {
2156 if (!strcmp(w->name, pin)) {
2157 w->ignore_suspend = 1;
2158 return 0;
2159 }
2160 }
2161
2264 if (!strcmp(w->name, pin)) {
2265 w->ignore_suspend = 1;
2266 return 0;
2267 }
2268 }
2269
2162 pr_err("Unknown DAPM pin: %s\n", pin);
2270 dev_err(dapm->dev, "dapm: unknown pin %s\n", pin);
2163 return -EINVAL;
2164}
2165EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend);
2166
2167/**
2168 * snd_soc_dapm_free - free dapm resources
2169 * @card: SoC device
2170 *
2171 * Free all dapm widgets and resources.
2172 */
2271 return -EINVAL;
2272}
2273EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend);
2274
2275/**
2276 * snd_soc_dapm_free - free dapm resources
2277 * @card: SoC device
2278 *
2279 * Free all dapm widgets and resources.
2280 */
2173void snd_soc_dapm_free(struct snd_soc_codec *codec)
2281void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm)
2174{
2282{
2175 snd_soc_dapm_sys_remove(codec->dev);
2176 dapm_free_widgets(codec);
2283 snd_soc_dapm_sys_remove(dapm->dev);
2284 dapm_free_widgets(dapm);
2177}
2178EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
2179
2285}
2286EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
2287
2180static void soc_dapm_shutdown_codec(struct snd_soc_codec *codec)
2288static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm)
2181{
2182 struct snd_soc_dapm_widget *w;
2183 LIST_HEAD(down_list);
2184 int powerdown = 0;
2185
2289{
2290 struct snd_soc_dapm_widget *w;
2291 LIST_HEAD(down_list);
2292 int powerdown = 0;
2293
2186 list_for_each_entry(w, &codec->dapm_widgets, list) {
2294 list_for_each_entry(w, &dapm->widgets, list) {
2187 if (w->power) {
2188 dapm_seq_insert(w, &down_list, dapm_down_seq);
2189 w->power = 0;
2190 powerdown = 1;
2191 }
2192 }
2193
2194 /* If there were no widgets to power down we're already in
2195 * standby.
2196 */
2197 if (powerdown) {
2295 if (w->power) {
2296 dapm_seq_insert(w, &down_list, dapm_down_seq);
2297 w->power = 0;
2298 powerdown = 1;
2299 }
2300 }
2301
2302 /* If there were no widgets to power down we're already in
2303 * standby.
2304 */
2305 if (powerdown) {
2198 snd_soc_dapm_set_bias_level(NULL, codec, SND_SOC_BIAS_PREPARE);
2199 dapm_seq_run(codec, &down_list, 0, dapm_down_seq);
2200 snd_soc_dapm_set_bias_level(NULL, codec, SND_SOC_BIAS_STANDBY);
2306 snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_PREPARE);
2307 dapm_seq_run(dapm, &down_list, 0, dapm_down_seq);
2308 snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_STANDBY);
2201 }
2202}
2203
2204/*
2205 * snd_soc_dapm_shutdown - callback for system shutdown
2206 */
2207void snd_soc_dapm_shutdown(struct snd_soc_card *card)
2208{
2209 struct snd_soc_codec *codec;
2210
2309 }
2310}
2311
2312/*
2313 * snd_soc_dapm_shutdown - callback for system shutdown
2314 */
2315void snd_soc_dapm_shutdown(struct snd_soc_card *card)
2316{
2317 struct snd_soc_codec *codec;
2318
2211 list_for_each_entry(codec, &card->codec_dev_list, list)
2212 soc_dapm_shutdown_codec(codec);
2213
2214 snd_soc_dapm_set_bias_level(card, codec, SND_SOC_BIAS_OFF);
2319 list_for_each_entry(codec, &card->codec_dev_list, list) {
2320 soc_dapm_shutdown_codec(&codec->dapm);
2321 snd_soc_dapm_set_bias_level(card, &codec->dapm, SND_SOC_BIAS_OFF);
2322 }
2215}
2216
2217/* Module information */
2218MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
2219MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC");
2220MODULE_LICENSE("GPL");
2323}
2324
2325/* Module information */
2326MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
2327MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC");
2328MODULE_LICENSE("GPL");