blob: 687784463db9a6732769eddcbeb6f22b246d4db3 [file] [log] [blame]
Richard Purdie2b97eab2006-10-06 18:32:18 +02001/*
2 * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management
3 *
4 * Copyright 2005 Wolfson Microelectronics PLC.
Liam Girdwoodd3311242008-10-12 13:17:36 +01005 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
Richard Purdie2b97eab2006-10-06 18:32:18 +02006 *
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 *
Richard Purdie2b97eab2006-10-06 18:32:18 +020012 * Features:
13 * o Changes power status of internal codec blocks depending on the
14 * dynamic configuration of codec internal audio paths and active
Mark Brown74b8f952009-06-06 11:26:15 +010015 * DACs/ADCs.
Richard Purdie2b97eab2006-10-06 18:32:18 +020016 * o Platform power domain - can support external components i.e. amps and
Liam Girdwood612a3fe2012-02-06 16:05:29 +000017 * mic/headphone insertion events.
Richard Purdie2b97eab2006-10-06 18:32:18 +020018 * o Automatic Mic Bias support
19 * o Jack insertion power event initiation - e.g. hp insertion will enable
20 * sinks, dacs, etc
Liam Girdwood612a3fe2012-02-06 16:05:29 +000021 * o Delayed power down of audio subsystem to reduce pops between a quick
Richard Purdie2b97eab2006-10-06 18:32:18 +020022 * device reopen.
23 *
Richard Purdie2b97eab2006-10-06 18:32:18 +020024 */
25
26#include <linux/module.h>
27#include <linux/moduleparam.h>
28#include <linux/init.h>
Mark Brown9d0624a2011-02-18 11:49:43 -080029#include <linux/async.h>
Richard Purdie2b97eab2006-10-06 18:32:18 +020030#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>
Takashi Iwai20496ff2009-08-24 09:40:34 +020035#include <linux/debugfs.h>
Mark Brownf1aac482011-12-05 15:17:06 +000036#include <linux/pm_runtime.h>
Mark Brown62ea8742012-01-21 21:14:48 +000037#include <linux/regulator/consumer.h>
Ola Liljad7e7eb92012-05-24 15:26:25 +020038#include <linux/clk.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090039#include <linux/slab.h>
Richard Purdie2b97eab2006-10-06 18:32:18 +020040#include <sound/core.h>
41#include <sound/pcm.h>
42#include <sound/pcm_params.h>
Liam Girdwoodce6120c2010-11-05 15:53:46 +020043#include <sound/soc.h>
Richard Purdie2b97eab2006-10-06 18:32:18 +020044#include <sound/initval.h>
45
Mark Brown84e90932010-11-04 00:07:02 -040046#include <trace/events/asoc.h>
47
Mark Brownde02d072011-09-20 21:43:24 +010048#define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++;
49
Richard Purdie2b97eab2006-10-06 18:32:18 +020050/* dapm power sequences - make this per codec in the future */
51static int dapm_up_seq[] = {
Mark Brown38357ab2009-06-06 19:03:23 +010052 [snd_soc_dapm_pre] = 0,
53 [snd_soc_dapm_supply] = 1,
Mark Brown62ea8742012-01-21 21:14:48 +000054 [snd_soc_dapm_regulator_supply] = 1,
Ola Liljad7e7eb92012-05-24 15:26:25 +020055 [snd_soc_dapm_clock_supply] = 1,
Mark Brown38357ab2009-06-06 19:03:23 +010056 [snd_soc_dapm_micbias] = 2,
Mark Brownc74184e2012-04-04 22:12:09 +010057 [snd_soc_dapm_dai_link] = 2,
Mark Brown888df392012-02-16 19:37:51 -080058 [snd_soc_dapm_dai] = 3,
Mark Brown010ff262009-08-17 17:39:22 +010059 [snd_soc_dapm_aif_in] = 3,
60 [snd_soc_dapm_aif_out] = 3,
61 [snd_soc_dapm_mic] = 4,
62 [snd_soc_dapm_mux] = 5,
Dimitris Papastamos24ff33a2010-12-16 15:53:39 +000063 [snd_soc_dapm_virt_mux] = 5,
Mark Brown010ff262009-08-17 17:39:22 +010064 [snd_soc_dapm_value_mux] = 5,
65 [snd_soc_dapm_dac] = 6,
66 [snd_soc_dapm_mixer] = 7,
67 [snd_soc_dapm_mixer_named_ctl] = 7,
68 [snd_soc_dapm_pga] = 8,
69 [snd_soc_dapm_adc] = 9,
Olaya, Margaritad88429a2010-12-10 21:11:44 -060070 [snd_soc_dapm_out_drv] = 10,
Mark Brown010ff262009-08-17 17:39:22 +010071 [snd_soc_dapm_hp] = 10,
72 [snd_soc_dapm_spk] = 10,
Mark Brown7e1f7c82012-04-12 17:29:36 +010073 [snd_soc_dapm_line] = 10,
Mark Brown010ff262009-08-17 17:39:22 +010074 [snd_soc_dapm_post] = 11,
Richard Purdie2b97eab2006-10-06 18:32:18 +020075};
Ian Moltonca9c1aa2009-01-06 20:11:51 +000076
Richard Purdie2b97eab2006-10-06 18:32:18 +020077static int dapm_down_seq[] = {
Mark Brown38357ab2009-06-06 19:03:23 +010078 [snd_soc_dapm_pre] = 0,
79 [snd_soc_dapm_adc] = 1,
80 [snd_soc_dapm_hp] = 2,
Mark Brown1ca04062009-08-17 16:26:59 +010081 [snd_soc_dapm_spk] = 2,
Mark Brown7e1f7c82012-04-12 17:29:36 +010082 [snd_soc_dapm_line] = 2,
Olaya, Margaritad88429a2010-12-10 21:11:44 -060083 [snd_soc_dapm_out_drv] = 2,
Mark Brown38357ab2009-06-06 19:03:23 +010084 [snd_soc_dapm_pga] = 4,
85 [snd_soc_dapm_mixer_named_ctl] = 5,
Mark Browne3d4dab2009-06-07 13:08:45 +010086 [snd_soc_dapm_mixer] = 5,
87 [snd_soc_dapm_dac] = 6,
88 [snd_soc_dapm_mic] = 7,
89 [snd_soc_dapm_micbias] = 8,
90 [snd_soc_dapm_mux] = 9,
Dimitris Papastamos24ff33a2010-12-16 15:53:39 +000091 [snd_soc_dapm_virt_mux] = 9,
Mark Browne3d4dab2009-06-07 13:08:45 +010092 [snd_soc_dapm_value_mux] = 9,
Mark Brown010ff262009-08-17 17:39:22 +010093 [snd_soc_dapm_aif_in] = 10,
94 [snd_soc_dapm_aif_out] = 10,
Mark Brown888df392012-02-16 19:37:51 -080095 [snd_soc_dapm_dai] = 10,
Mark Brownc74184e2012-04-04 22:12:09 +010096 [snd_soc_dapm_dai_link] = 11,
Ola Liljad7e7eb92012-05-24 15:26:25 +020097 [snd_soc_dapm_clock_supply] = 12,
Mark Brownc74184e2012-04-04 22:12:09 +010098 [snd_soc_dapm_regulator_supply] = 12,
99 [snd_soc_dapm_supply] = 12,
100 [snd_soc_dapm_post] = 13,
Richard Purdie2b97eab2006-10-06 18:32:18 +0200101};
102
Troy Kisky12ef1932008-10-13 17:42:14 -0700103static void pop_wait(u32 pop_time)
Mark Brown15e4c722008-07-02 11:51:20 +0100104{
105 if (pop_time)
106 schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time));
107}
108
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +0200109static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...)
Mark Brown15e4c722008-07-02 11:51:20 +0100110{
111 va_list args;
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +0200112 char *buf;
113
114 if (!pop_time)
115 return;
116
117 buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
118 if (buf == NULL)
119 return;
Mark Brown15e4c722008-07-02 11:51:20 +0100120
121 va_start(args, fmt);
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +0200122 vsnprintf(buf, PAGE_SIZE, fmt, args);
Takashi Iwai9d01df02010-12-22 14:08:40 +0100123 dev_info(dev, "%s", buf);
Mark Brown15e4c722008-07-02 11:51:20 +0100124 va_end(args);
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +0200125
126 kfree(buf);
Mark Brown15e4c722008-07-02 11:51:20 +0100127}
128
Mark Browndb432b42011-10-03 21:06:40 +0100129static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w)
130{
131 return !list_empty(&w->dirty);
132}
133
Mark Brown25c77c52011-10-08 13:36:03 +0100134void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason)
Mark Browndb432b42011-10-03 21:06:40 +0100135{
Mark Brown75c1f892011-10-04 22:28:08 +0100136 if (!dapm_dirty_widget(w)) {
137 dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n",
138 w->name, reason);
Mark Browndb432b42011-10-03 21:06:40 +0100139 list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty);
Mark Brown75c1f892011-10-04 22:28:08 +0100140 }
Mark Browndb432b42011-10-03 21:06:40 +0100141}
Mark Brown25c77c52011-10-08 13:36:03 +0100142EXPORT_SYMBOL_GPL(dapm_mark_dirty);
Mark Browndb432b42011-10-03 21:06:40 +0100143
Mark Browne2d32ff2012-08-31 17:38:32 -0700144void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm)
145{
146 struct snd_soc_card *card = dapm->card;
147 struct snd_soc_dapm_widget *w;
148
149 mutex_lock(&card->dapm_mutex);
150
151 list_for_each_entry(w, &card->widgets, list) {
152 switch (w->id) {
153 case snd_soc_dapm_input:
154 case snd_soc_dapm_output:
155 dapm_mark_dirty(w, "Rechecking inputs and outputs");
156 break;
157 default:
158 break;
159 }
160 }
161
162 mutex_unlock(&card->dapm_mutex);
163}
164EXPORT_SYMBOL_GPL(dapm_mark_io_dirty);
165
Richard Purdie2b97eab2006-10-06 18:32:18 +0200166/* create a new dapm widget */
Takashi Iwai88cb4292007-02-05 14:56:20 +0100167static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
Richard Purdie2b97eab2006-10-06 18:32:18 +0200168 const struct snd_soc_dapm_widget *_widget)
169{
Takashi Iwai88cb4292007-02-05 14:56:20 +0100170 return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200171}
172
Liam Girdwood48056082011-07-20 12:23:33 +0100173/* get snd_card from DAPM context */
174static inline struct snd_card *dapm_get_snd_card(
175 struct snd_soc_dapm_context *dapm)
176{
177 if (dapm->codec)
178 return dapm->codec->card->snd_card;
179 else if (dapm->platform)
180 return dapm->platform->card->snd_card;
181 else
182 BUG();
183
184 /* unreachable */
185 return NULL;
186}
187
188/* get soc_card from DAPM context */
189static inline struct snd_soc_card *dapm_get_soc_card(
190 struct snd_soc_dapm_context *dapm)
191{
192 if (dapm->codec)
193 return dapm->codec->card;
194 else if (dapm->platform)
195 return dapm->platform->card;
196 else
197 BUG();
198
199 /* unreachable */
200 return NULL;
201}
202
Liam Girdwood6c120e12012-02-15 15:15:34 +0000203static void dapm_reset(struct snd_soc_card *card)
204{
205 struct snd_soc_dapm_widget *w;
206
207 memset(&card->dapm_stats, 0, sizeof(card->dapm_stats));
208
209 list_for_each_entry(w, &card->widgets, list) {
210 w->power_checked = false;
211 w->inputs = -1;
212 w->outputs = -1;
213 }
214}
215
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100216static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg)
217{
218 if (w->codec)
219 return snd_soc_read(w->codec, reg);
Liam Girdwoodb7950642011-07-04 22:10:52 +0100220 else if (w->platform)
221 return snd_soc_platform_read(w->platform, reg);
222
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000223 dev_err(w->dapm->dev, "ASoC: no valid widget read method\n");
Liam Girdwoodb7950642011-07-04 22:10:52 +0100224 return -1;
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100225}
226
227static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val)
228{
229 if (w->codec)
230 return snd_soc_write(w->codec, reg, val);
Liam Girdwoodb7950642011-07-04 22:10:52 +0100231 else if (w->platform)
232 return snd_soc_platform_write(w->platform, reg, val);
233
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000234 dev_err(w->dapm->dev, "ASoC: no valid widget write method\n");
Liam Girdwoodb7950642011-07-04 22:10:52 +0100235 return -1;
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100236}
237
Liam Girdwood49575fb52012-03-06 18:16:19 +0000238static inline void soc_widget_lock(struct snd_soc_dapm_widget *w)
239{
Mark Browne06ab3b2012-03-06 23:58:22 +0000240 if (w->codec && !w->codec->using_regmap)
Liam Girdwood49575fb52012-03-06 18:16:19 +0000241 mutex_lock(&w->codec->mutex);
242 else if (w->platform)
243 mutex_lock(&w->platform->mutex);
244}
245
246static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w)
247{
Mark Browne06ab3b2012-03-06 23:58:22 +0000248 if (w->codec && !w->codec->using_regmap)
Liam Girdwood49575fb52012-03-06 18:16:19 +0000249 mutex_unlock(&w->codec->mutex);
250 else if (w->platform)
251 mutex_unlock(&w->platform->mutex);
252}
253
254static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100255 unsigned short reg, unsigned int mask, unsigned int value)
256{
Mark Brown8a713da2011-12-03 12:33:55 +0000257 bool change;
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100258 unsigned int old, new;
259 int ret;
260
Mark Brown8a713da2011-12-03 12:33:55 +0000261 if (w->codec && w->codec->using_regmap) {
262 ret = regmap_update_bits_check(w->codec->control_data,
263 reg, mask, value, &change);
264 if (ret != 0)
265 return ret;
266 } else {
Liam Girdwood49575fb52012-03-06 18:16:19 +0000267 soc_widget_lock(w);
Mark Brown8a713da2011-12-03 12:33:55 +0000268 ret = soc_widget_read(w, reg);
Liam Girdwood49575fb52012-03-06 18:16:19 +0000269 if (ret < 0) {
270 soc_widget_unlock(w);
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100271 return ret;
Liam Girdwood49575fb52012-03-06 18:16:19 +0000272 }
Mark Brown8a713da2011-12-03 12:33:55 +0000273
274 old = ret;
275 new = (old & ~mask) | (value & mask);
276 change = old != new;
277 if (change) {
278 ret = soc_widget_write(w, reg, new);
Liam Girdwood49575fb52012-03-06 18:16:19 +0000279 if (ret < 0) {
280 soc_widget_unlock(w);
Mark Brown8a713da2011-12-03 12:33:55 +0000281 return ret;
Liam Girdwood49575fb52012-03-06 18:16:19 +0000282 }
Mark Brown8a713da2011-12-03 12:33:55 +0000283 }
Liam Girdwood49575fb52012-03-06 18:16:19 +0000284 soc_widget_unlock(w);
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100285 }
286
287 return change;
288}
289
Mark Brown452c5ea2009-05-17 21:41:23 +0100290/**
291 * snd_soc_dapm_set_bias_level - set the bias level for the system
Mark Browned5a4c42011-02-18 11:12:42 -0800292 * @dapm: DAPM context
Mark Brown452c5ea2009-05-17 21:41:23 +0100293 * @level: level to configure
294 *
295 * Configure the bias (power) levels for the SoC audio device.
296 *
297 * Returns 0 for success else error.
298 */
Mark Browned5a4c42011-02-18 11:12:42 -0800299static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm,
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200300 enum snd_soc_bias_level level)
Mark Brown452c5ea2009-05-17 21:41:23 +0100301{
Mark Browned5a4c42011-02-18 11:12:42 -0800302 struct snd_soc_card *card = dapm->card;
Mark Brown452c5ea2009-05-17 21:41:23 +0100303 int ret = 0;
304
Mark Brown84e90932010-11-04 00:07:02 -0400305 trace_snd_soc_bias_level_start(card, level);
306
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000307 if (card && card->set_bias_level)
Mark Brownd4c60052011-06-06 19:13:23 +0100308 ret = card->set_bias_level(card, dapm, level);
Mark Brown171ec6b2011-06-06 18:15:19 +0100309 if (ret != 0)
310 goto out;
Mark Brown452c5ea2009-05-17 21:41:23 +0100311
Mark Browncc4c6702011-06-06 19:03:34 +0100312 if (dapm->codec) {
313 if (dapm->codec->driver->set_bias_level)
314 ret = dapm->codec->driver->set_bias_level(dapm->codec,
315 level);
Mark Brownd8c3bb92012-08-23 18:10:42 +0100316 else
317 dapm->bias_level = level;
Mark Brown4e872a42012-08-23 18:20:49 +0100318 } else if (!card || dapm != &card->dapm) {
Liam Girdwood41231282012-07-06 16:56:16 +0100319 dapm->bias_level = level;
Mark Brown4e872a42012-08-23 18:20:49 +0100320 }
Liam Girdwood41231282012-07-06 16:56:16 +0100321
Mark Brown171ec6b2011-06-06 18:15:19 +0100322 if (ret != 0)
323 goto out;
324
325 if (card && card->set_bias_level_post)
Mark Brownd4c60052011-06-06 19:13:23 +0100326 ret = card->set_bias_level_post(card, dapm, level);
Mark Brown171ec6b2011-06-06 18:15:19 +0100327out:
Mark Brown84e90932010-11-04 00:07:02 -0400328 trace_snd_soc_bias_level_done(card, level);
329
Mark Brown452c5ea2009-05-17 21:41:23 +0100330 return ret;
331}
332
Richard Purdie2b97eab2006-10-06 18:32:18 +0200333/* set up initial codec paths */
334static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
335 struct snd_soc_dapm_path *p, int i)
336{
337 switch (w->id) {
338 case snd_soc_dapm_switch:
Ian Moltonca9c1aa2009-01-06 20:11:51 +0000339 case snd_soc_dapm_mixer:
340 case snd_soc_dapm_mixer_named_ctl: {
Richard Purdie2b97eab2006-10-06 18:32:18 +0200341 int val;
Jon Smirl4eaa9812008-07-29 11:42:26 +0100342 struct soc_mixer_control *mc = (struct soc_mixer_control *)
Stephen Warren82cfecd2011-04-28 17:37:58 -0600343 w->kcontrol_news[i].private_value;
Jon Smirl815ecf8d2008-07-29 10:22:24 -0400344 unsigned int reg = mc->reg;
345 unsigned int shift = mc->shift;
Jon Smirl4eaa9812008-07-29 11:42:26 +0100346 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -0400347 unsigned int mask = (1 << fls(max)) - 1;
348 unsigned int invert = mc->invert;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200349
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100350 val = soc_widget_read(w, reg);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200351 val = (val >> shift) & mask;
Benoît Thébaudeau32fee7a2012-07-02 13:45:21 +0200352 if (invert)
353 val = max - val;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200354
Benoît Thébaudeau32fee7a2012-07-02 13:45:21 +0200355 p->connect = !!val;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200356 }
357 break;
358 case snd_soc_dapm_mux: {
Stephen Warren82cfecd2011-04-28 17:37:58 -0600359 struct soc_enum *e = (struct soc_enum *)
360 w->kcontrol_news[i].private_value;
Lars-Peter Clausen86767b72012-09-14 13:57:27 +0200361 int val, item;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200362
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100363 val = soc_widget_read(w, e->reg);
Lars-Peter Clausen86767b72012-09-14 13:57:27 +0200364 item = (val >> e->shift_l) & e->mask;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200365
366 p->connect = 0;
Jon Smirlf8ba0b72008-07-29 11:42:27 +0100367 for (i = 0; i < e->max; i++) {
Richard Purdie2b97eab2006-10-06 18:32:18 +0200368 if (!(strcmp(p->name, e->texts[i])) && item == i)
369 p->connect = 1;
370 }
371 }
372 break;
Dimitris Papastamos24ff33a2010-12-16 15:53:39 +0000373 case snd_soc_dapm_virt_mux: {
Stephen Warren82cfecd2011-04-28 17:37:58 -0600374 struct soc_enum *e = (struct soc_enum *)
375 w->kcontrol_news[i].private_value;
Dimitris Papastamos24ff33a2010-12-16 15:53:39 +0000376
377 p->connect = 0;
378 /* since a virtual mux has no backing registers to
379 * decide which path to connect, it will try to match
380 * with the first enumeration. This is to ensure
381 * that the default mux choice (the first) will be
382 * correctly powered up during initialization.
383 */
384 if (!strcmp(p->name, e->texts[0]))
385 p->connect = 1;
386 }
387 break;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +0200388 case snd_soc_dapm_value_mux: {
Peter Ujfalusi74155552009-01-08 13:34:29 +0200389 struct soc_enum *e = (struct soc_enum *)
Stephen Warren82cfecd2011-04-28 17:37:58 -0600390 w->kcontrol_news[i].private_value;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +0200391 int val, item;
392
Liam Girdwood0445bdf2011-06-13 19:37:36 +0100393 val = soc_widget_read(w, e->reg);
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +0200394 val = (val >> e->shift_l) & e->mask;
395 for (item = 0; item < e->max; item++) {
396 if (val == e->values[item])
397 break;
398 }
399
400 p->connect = 0;
401 for (i = 0; i < e->max; i++) {
402 if (!(strcmp(p->name, e->texts[i])) && item == i)
403 p->connect = 1;
404 }
405 }
406 break;
Mark Brown56563102011-10-03 22:41:09 +0100407 /* does not affect routing - always connected */
Richard Purdie2b97eab2006-10-06 18:32:18 +0200408 case snd_soc_dapm_pga:
Olaya, Margaritad88429a2010-12-10 21:11:44 -0600409 case snd_soc_dapm_out_drv:
Richard Purdie2b97eab2006-10-06 18:32:18 +0200410 case snd_soc_dapm_output:
411 case snd_soc_dapm_adc:
412 case snd_soc_dapm_input:
Mark Brown1ab97c82011-11-27 16:21:51 +0000413 case snd_soc_dapm_siggen:
Richard Purdie2b97eab2006-10-06 18:32:18 +0200414 case snd_soc_dapm_dac:
415 case snd_soc_dapm_micbias:
416 case snd_soc_dapm_vmid:
Mark Brown246d0a12009-04-22 18:24:55 +0100417 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +0000418 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +0200419 case snd_soc_dapm_clock_supply:
Mark Brown010ff262009-08-17 17:39:22 +0100420 case snd_soc_dapm_aif_in:
421 case snd_soc_dapm_aif_out:
Mark Brown888df392012-02-16 19:37:51 -0800422 case snd_soc_dapm_dai:
Richard Purdie2b97eab2006-10-06 18:32:18 +0200423 case snd_soc_dapm_hp:
424 case snd_soc_dapm_mic:
425 case snd_soc_dapm_spk:
426 case snd_soc_dapm_line:
Mark Brownc74184e2012-04-04 22:12:09 +0100427 case snd_soc_dapm_dai_link:
Mark Brown56563102011-10-03 22:41:09 +0100428 p->connect = 1;
429 break;
430 /* does affect routing - dynamically connected */
Richard Purdie2b97eab2006-10-06 18:32:18 +0200431 case snd_soc_dapm_pre:
432 case snd_soc_dapm_post:
433 p->connect = 0;
434 break;
435 }
436}
437
Mark Brown74b8f952009-06-06 11:26:15 +0100438/* connect mux widget to its interconnecting audio paths */
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200439static int dapm_connect_mux(struct snd_soc_dapm_context *dapm,
Richard Purdie2b97eab2006-10-06 18:32:18 +0200440 struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
441 struct snd_soc_dapm_path *path, const char *control_name,
442 const struct snd_kcontrol_new *kcontrol)
443{
444 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
445 int i;
446
Jon Smirlf8ba0b72008-07-29 11:42:27 +0100447 for (i = 0; i < e->max; i++) {
Richard Purdie2b97eab2006-10-06 18:32:18 +0200448 if (!(strcmp(control_name, e->texts[i]))) {
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +0200449 list_add(&path->list, &dapm->card->paths);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200450 list_add(&path->list_sink, &dest->sources);
451 list_add(&path->list_source, &src->sinks);
452 path->name = (char*)e->texts[i];
453 dapm_set_path_status(dest, path, 0);
454 return 0;
455 }
456 }
457
458 return -ENODEV;
459}
460
Mark Brown74b8f952009-06-06 11:26:15 +0100461/* connect mixer widget to its interconnecting audio paths */
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200462static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm,
Richard Purdie2b97eab2006-10-06 18:32:18 +0200463 struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
464 struct snd_soc_dapm_path *path, const char *control_name)
465{
466 int i;
467
468 /* search for mixer kcontrol */
469 for (i = 0; i < dest->num_kcontrols; i++) {
Stephen Warren82cfecd2011-04-28 17:37:58 -0600470 if (!strcmp(control_name, dest->kcontrol_news[i].name)) {
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +0200471 list_add(&path->list, &dapm->card->paths);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200472 list_add(&path->list_sink, &dest->sources);
473 list_add(&path->list_source, &src->sinks);
Stephen Warren82cfecd2011-04-28 17:37:58 -0600474 path->name = dest->kcontrol_news[i].name;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200475 dapm_set_path_status(dest, path, i);
476 return 0;
477 }
478 }
479 return -ENODEV;
480}
481
Stephen Warrenaf468002011-04-28 17:38:01 -0600482static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm,
Stephen Warren1007da02011-05-26 09:57:33 -0600483 struct snd_soc_dapm_widget *kcontrolw,
Stephen Warrenaf468002011-04-28 17:38:01 -0600484 const struct snd_kcontrol_new *kcontrol_new,
485 struct snd_kcontrol **kcontrol)
486{
487 struct snd_soc_dapm_widget *w;
488 int i;
489
490 *kcontrol = NULL;
491
492 list_for_each_entry(w, &dapm->card->widgets, list) {
Stephen Warren1007da02011-05-26 09:57:33 -0600493 if (w == kcontrolw || w->dapm != kcontrolw->dapm)
494 continue;
Stephen Warrenaf468002011-04-28 17:38:01 -0600495 for (i = 0; i < w->num_kcontrols; i++) {
496 if (&w->kcontrol_news[i] == kcontrol_new) {
497 if (w->kcontrols)
498 *kcontrol = w->kcontrols[i];
499 return 1;
500 }
501 }
502 }
503
504 return 0;
505}
506
Stephen Warren85762e72013-03-29 15:40:10 -0600507/*
508 * Determine if a kcontrol is shared. If it is, look it up. If it isn't,
509 * create it. Either way, add the widget into the control's widget list
510 */
511static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w,
512 int kci, struct snd_soc_dapm_path *path)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200513{
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +0200514 struct snd_soc_dapm_context *dapm = w->dapm;
Mark Brown12ea2c72011-03-02 18:17:32 +0000515 struct snd_card *card = dapm->card->snd_card;
Mark Brownefb7ac32011-03-08 17:23:24 +0000516 const char *prefix;
Stephen Warren85762e72013-03-29 15:40:10 -0600517 size_t prefix_len;
518 int shared;
519 struct snd_kcontrol *kcontrol;
Stephen Warrenfafd2172011-04-28 17:38:00 -0600520 struct snd_soc_dapm_widget_list *wlist;
Stephen Warren85762e72013-03-29 15:40:10 -0600521 int wlistentries;
Stephen Warrenfafd2172011-04-28 17:38:00 -0600522 size_t wlistsize;
Stephen Warren85762e72013-03-29 15:40:10 -0600523 bool wname_in_long_name, kcname_in_long_name;
524 size_t name_len;
525 char *long_name;
526 const char *name;
527 int ret;
Mark Brownefb7ac32011-03-08 17:23:24 +0000528
529 if (dapm->codec)
530 prefix = dapm->codec->name_prefix;
531 else
532 prefix = NULL;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200533
Mark Brown3e5ff4d2011-03-09 11:33:09 +0000534 if (prefix)
535 prefix_len = strlen(prefix) + 1;
536 else
537 prefix_len = 0;
538
Stephen Warren85762e72013-03-29 15:40:10 -0600539 shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci],
540 &kcontrol);
541
542 if (kcontrol) {
543 wlist = kcontrol->private_data;
544 wlistentries = wlist->num_widgets + 1;
545 } else {
546 wlist = NULL;
547 wlistentries = 1;
548 }
549
550 wlistsize = sizeof(struct snd_soc_dapm_widget_list) +
551 wlistentries * sizeof(struct snd_soc_dapm_widget *);
552 wlist = krealloc(wlist, wlistsize, GFP_KERNEL);
553 if (wlist == NULL) {
554 dev_err(dapm->dev, "ASoC: can't allocate widget list for %s\n",
555 w->name);
556 return -ENOMEM;
557 }
558 wlist->num_widgets = wlistentries;
559 wlist->widgets[wlistentries - 1] = w;
560
561 if (!kcontrol) {
562 if (shared) {
563 wname_in_long_name = false;
564 kcname_in_long_name = true;
565 } else {
566 switch (w->id) {
567 case snd_soc_dapm_switch:
568 case snd_soc_dapm_mixer:
569 wname_in_long_name = true;
570 kcname_in_long_name = true;
571 break;
572 case snd_soc_dapm_mixer_named_ctl:
573 wname_in_long_name = false;
574 kcname_in_long_name = true;
575 break;
576 case snd_soc_dapm_mux:
577 case snd_soc_dapm_virt_mux:
578 case snd_soc_dapm_value_mux:
579 wname_in_long_name = true;
580 kcname_in_long_name = false;
581 break;
582 default:
583 kfree(wlist);
584 return -EINVAL;
585 }
586 }
587
588 if (wname_in_long_name && kcname_in_long_name) {
589 name_len = strlen(w->name) - prefix_len + 1 +
590 strlen(w->kcontrol_news[kci].name) + 1;
591
592 long_name = kmalloc(name_len, GFP_KERNEL);
593 if (long_name == NULL) {
594 kfree(wlist);
595 return -ENOMEM;
596 }
597
598 /*
599 * The control will get a prefix from the control
600 * creation process but we're also using the same
601 * prefix for widgets so cut the prefix off the
602 * front of the widget name.
603 */
604 snprintf(long_name, name_len, "%s %s",
605 w->name + prefix_len,
606 w->kcontrol_news[kci].name);
607 long_name[name_len - 1] = '\0';
608
609 name = long_name;
610 } else if (wname_in_long_name) {
611 long_name = NULL;
612 name = w->name + prefix_len;
613 } else {
614 long_name = NULL;
615 name = w->kcontrol_news[kci].name;
616 }
617
618 kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], wlist, name,
619 prefix);
620 ret = snd_ctl_add(card, kcontrol);
621 if (ret < 0) {
622 dev_err(dapm->dev,
623 "ASoC: failed to add widget %s dapm kcontrol %s: %d\n",
624 w->name, name, ret);
625 kfree(wlist);
626 kfree(long_name);
627 return ret;
628 }
629
630 path->long_name = long_name;
631 }
632
633 kcontrol->private_data = wlist;
634 w->kcontrols[kci] = kcontrol;
635 path->kcontrol = kcontrol;
636
637 return 0;
638}
639
640/* create new dapm mixer control */
641static int dapm_new_mixer(struct snd_soc_dapm_widget *w)
642{
643 int i, ret;
644 struct snd_soc_dapm_path *path;
645
Richard Purdie2b97eab2006-10-06 18:32:18 +0200646 /* add kcontrol */
647 for (i = 0; i < w->num_kcontrols; i++) {
Richard Purdie2b97eab2006-10-06 18:32:18 +0200648 /* match name */
649 list_for_each_entry(path, &w->sources, list_sink) {
Richard Purdie2b97eab2006-10-06 18:32:18 +0200650 /* mixer/mux paths name must match control name */
Stephen Warren82cfecd2011-04-28 17:37:58 -0600651 if (path->name != (char *)w->kcontrol_news[i].name)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200652 continue;
653
Lars-Peter Clausen82cd8762011-08-15 20:15:21 +0200654 if (w->kcontrols[i]) {
655 path->kcontrol = w->kcontrols[i];
656 continue;
657 }
658
Stephen Warren85762e72013-03-29 15:40:10 -0600659 ret = dapm_create_or_share_mixmux_kcontrol(w, i, path);
660 if (ret < 0)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200661 return ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200662 }
663 }
Stephen Warren85762e72013-03-29 15:40:10 -0600664
665 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200666}
667
668/* create new dapm mux control */
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +0200669static int dapm_new_mux(struct snd_soc_dapm_widget *w)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200670{
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +0200671 struct snd_soc_dapm_context *dapm = w->dapm;
Stephen Warren85762e72013-03-29 15:40:10 -0600672 struct snd_soc_dapm_path *path;
Stephen Warrenaf468002011-04-28 17:38:01 -0600673 int ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200674
Stephen Warrenaf468002011-04-28 17:38:01 -0600675 if (w->num_kcontrols != 1) {
676 dev_err(dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000677 "ASoC: mux %s has incorrect number of controls\n",
Stephen Warrenaf468002011-04-28 17:38:01 -0600678 w->name);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200679 return -EINVAL;
680 }
681
Stephen Warren85762e72013-03-29 15:40:10 -0600682 path = list_first_entry(&w->sources, struct snd_soc_dapm_path,
683 list_sink);
684 if (!path) {
685 dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name);
686 return -EINVAL;
Stephen Warrenaf468002011-04-28 17:38:01 -0600687 }
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200688
Stephen Warren85762e72013-03-29 15:40:10 -0600689 ret = dapm_create_or_share_mixmux_kcontrol(w, 0, path);
690 if (ret < 0)
691 return ret;
Stephen Warrenfad59882011-04-28 17:37:59 -0600692
Richard Purdie2b97eab2006-10-06 18:32:18 +0200693 list_for_each_entry(path, &w->sources, list_sink)
Stephen Warren85762e72013-03-29 15:40:10 -0600694 path->kcontrol = w->kcontrols[0];
Richard Purdie2b97eab2006-10-06 18:32:18 +0200695
Stephen Warrenaf468002011-04-28 17:38:01 -0600696 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200697}
698
699/* create new dapm volume control */
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +0200700static int dapm_new_pga(struct snd_soc_dapm_widget *w)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200701{
Mark Browna6c65732010-03-03 17:45:21 +0000702 if (w->num_kcontrols)
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +0200703 dev_err(w->dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000704 "ASoC: PGA controls not supported: '%s'\n", w->name);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200705
Mark Browna6c65732010-03-03 17:45:21 +0000706 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +0200707}
708
709/* reset 'walked' bit for each dapm path */
Liam Girdwoodce6120c2010-11-05 15:53:46 +0200710static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200711{
712 struct snd_soc_dapm_path *p;
713
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +0200714 list_for_each_entry(p, &dapm->card->paths, list)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200715 p->walked = 0;
716}
717
Mark Brown99497882010-05-07 20:24:05 +0100718/* We implement power down on suspend by checking the power state of
719 * the ALSA card - when we are suspending the ALSA state for the card
720 * is set to D3.
721 */
722static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget)
723{
Mark Brown12ea2c72011-03-02 18:17:32 +0000724 int level = snd_power_get_state(widget->dapm->card->snd_card);
Mark Brown99497882010-05-07 20:24:05 +0100725
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000726 switch (level) {
Mark Brown99497882010-05-07 20:24:05 +0100727 case SNDRV_CTL_POWER_D3hot:
728 case SNDRV_CTL_POWER_D3cold:
Mark Brown1547aba2010-05-07 21:11:40 +0100729 if (widget->ignore_suspend)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000730 dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n",
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +0200731 widget->name);
Mark Brown1547aba2010-05-07 21:11:40 +0100732 return widget->ignore_suspend;
Mark Brown99497882010-05-07 20:24:05 +0100733 default:
734 return 1;
735 }
736}
737
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100738/* add widget to list if it's not already in the list */
739static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list,
740 struct snd_soc_dapm_widget *w)
741{
742 struct snd_soc_dapm_widget_list *wlist;
743 int wlistsize, wlistentries, i;
744
745 if (*list == NULL)
746 return -EINVAL;
747
748 wlist = *list;
749
750 /* is this widget already in the list */
751 for (i = 0; i < wlist->num_widgets; i++) {
752 if (wlist->widgets[i] == w)
753 return 0;
754 }
755
756 /* allocate some new space */
757 wlistentries = wlist->num_widgets + 1;
758 wlistsize = sizeof(struct snd_soc_dapm_widget_list) +
759 wlistentries * sizeof(struct snd_soc_dapm_widget *);
760 *list = krealloc(wlist, wlistsize, GFP_KERNEL);
761 if (*list == NULL) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000762 dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n",
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100763 w->name);
764 return -ENOMEM;
765 }
766 wlist = *list;
767
768 /* insert the widget */
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000769 dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n",
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100770 w->name, wlist->num_widgets);
771
772 wlist->widgets[wlist->num_widgets] = w;
773 wlist->num_widgets++;
774 return 1;
775}
776
Richard Purdie2b97eab2006-10-06 18:32:18 +0200777/*
778 * Recursively check for a completed path to an active or physically connected
779 * output widget. Returns number of complete paths.
780 */
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100781static int is_connected_output_ep(struct snd_soc_dapm_widget *widget,
782 struct snd_soc_dapm_widget_list **list)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200783{
784 struct snd_soc_dapm_path *path;
785 int con = 0;
786
Mark Brown024dc072011-10-09 11:52:05 +0100787 if (widget->outputs >= 0)
788 return widget->outputs;
789
Mark Brownde02d072011-09-20 21:43:24 +0100790 DAPM_UPDATE_STAT(widget, path_checks);
791
Mark Brown62ea8742012-01-21 21:14:48 +0000792 switch (widget->id) {
793 case snd_soc_dapm_supply:
794 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +0200795 case snd_soc_dapm_clock_supply:
Mark Brown246d0a12009-04-22 18:24:55 +0100796 return 0;
Mark Brown62ea8742012-01-21 21:14:48 +0000797 default:
798 break;
799 }
Mark Brown246d0a12009-04-22 18:24:55 +0100800
Mark Brown010ff262009-08-17 17:39:22 +0100801 switch (widget->id) {
802 case snd_soc_dapm_adc:
803 case snd_soc_dapm_aif_out:
Mark Brown888df392012-02-16 19:37:51 -0800804 case snd_soc_dapm_dai:
Mark Brown024dc072011-10-09 11:52:05 +0100805 if (widget->active) {
806 widget->outputs = snd_soc_dapm_suspend_check(widget);
807 return widget->outputs;
808 }
Mark Brown010ff262009-08-17 17:39:22 +0100809 default:
810 break;
811 }
Richard Purdie2b97eab2006-10-06 18:32:18 +0200812
813 if (widget->connected) {
814 /* connected pin ? */
Mark Brown024dc072011-10-09 11:52:05 +0100815 if (widget->id == snd_soc_dapm_output && !widget->ext) {
816 widget->outputs = snd_soc_dapm_suspend_check(widget);
817 return widget->outputs;
818 }
Richard Purdie2b97eab2006-10-06 18:32:18 +0200819
820 /* connected jack or spk ? */
Mark Brown024dc072011-10-09 11:52:05 +0100821 if (widget->id == snd_soc_dapm_hp ||
822 widget->id == snd_soc_dapm_spk ||
823 (widget->id == snd_soc_dapm_line &&
824 !list_empty(&widget->sources))) {
825 widget->outputs = snd_soc_dapm_suspend_check(widget);
826 return widget->outputs;
827 }
Richard Purdie2b97eab2006-10-06 18:32:18 +0200828 }
829
830 list_for_each_entry(path, &widget->sinks, list_source) {
Mark Browne56235e2011-09-21 18:19:14 +0100831 DAPM_UPDATE_STAT(widget, neighbour_checks);
832
Mark Brownbf3a9e12011-06-13 16:42:29 +0100833 if (path->weak)
834 continue;
835
Richard Purdie2b97eab2006-10-06 18:32:18 +0200836 if (path->walked)
837 continue;
838
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100839 trace_snd_soc_dapm_output_path(widget, path);
840
Richard Purdie2b97eab2006-10-06 18:32:18 +0200841 if (path->sink && path->connect) {
842 path->walked = 1;
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100843
844 /* do we need to add this widget to the list ? */
845 if (list) {
846 int err;
847 err = dapm_list_add_widget(list, path->sink);
848 if (err < 0) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000849 dev_err(widget->dapm->dev,
850 "ASoC: could not add widget %s\n",
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100851 widget->name);
852 return con;
853 }
854 }
855
856 con += is_connected_output_ep(path->sink, list);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200857 }
858 }
859
Mark Brown024dc072011-10-09 11:52:05 +0100860 widget->outputs = con;
861
Richard Purdie2b97eab2006-10-06 18:32:18 +0200862 return con;
863}
864
865/*
866 * Recursively check for a completed path to an active or physically connected
867 * input widget. Returns number of complete paths.
868 */
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100869static int is_connected_input_ep(struct snd_soc_dapm_widget *widget,
870 struct snd_soc_dapm_widget_list **list)
Richard Purdie2b97eab2006-10-06 18:32:18 +0200871{
872 struct snd_soc_dapm_path *path;
873 int con = 0;
874
Mark Brown024dc072011-10-09 11:52:05 +0100875 if (widget->inputs >= 0)
876 return widget->inputs;
877
Mark Brownde02d072011-09-20 21:43:24 +0100878 DAPM_UPDATE_STAT(widget, path_checks);
879
Mark Brown62ea8742012-01-21 21:14:48 +0000880 switch (widget->id) {
881 case snd_soc_dapm_supply:
882 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +0200883 case snd_soc_dapm_clock_supply:
Mark Brown246d0a12009-04-22 18:24:55 +0100884 return 0;
Mark Brown62ea8742012-01-21 21:14:48 +0000885 default:
886 break;
887 }
Mark Brown246d0a12009-04-22 18:24:55 +0100888
Richard Purdie2b97eab2006-10-06 18:32:18 +0200889 /* active stream ? */
Mark Brown010ff262009-08-17 17:39:22 +0100890 switch (widget->id) {
891 case snd_soc_dapm_dac:
892 case snd_soc_dapm_aif_in:
Mark Brown888df392012-02-16 19:37:51 -0800893 case snd_soc_dapm_dai:
Mark Brown024dc072011-10-09 11:52:05 +0100894 if (widget->active) {
895 widget->inputs = snd_soc_dapm_suspend_check(widget);
896 return widget->inputs;
897 }
Mark Brown010ff262009-08-17 17:39:22 +0100898 default:
899 break;
900 }
Richard Purdie2b97eab2006-10-06 18:32:18 +0200901
902 if (widget->connected) {
903 /* connected pin ? */
Mark Brown024dc072011-10-09 11:52:05 +0100904 if (widget->id == snd_soc_dapm_input && !widget->ext) {
905 widget->inputs = snd_soc_dapm_suspend_check(widget);
906 return widget->inputs;
907 }
Richard Purdie2b97eab2006-10-06 18:32:18 +0200908
909 /* connected VMID/Bias for lower pops */
Mark Brown024dc072011-10-09 11:52:05 +0100910 if (widget->id == snd_soc_dapm_vmid) {
911 widget->inputs = snd_soc_dapm_suspend_check(widget);
912 return widget->inputs;
913 }
Richard Purdie2b97eab2006-10-06 18:32:18 +0200914
915 /* connected jack ? */
Peter Ujfalusieaeae5d2009-09-30 09:27:24 +0300916 if (widget->id == snd_soc_dapm_mic ||
Mark Brown024dc072011-10-09 11:52:05 +0100917 (widget->id == snd_soc_dapm_line &&
918 !list_empty(&widget->sinks))) {
919 widget->inputs = snd_soc_dapm_suspend_check(widget);
920 return widget->inputs;
921 }
922
Mark Brown1ab97c82011-11-27 16:21:51 +0000923 /* signal generator */
924 if (widget->id == snd_soc_dapm_siggen) {
925 widget->inputs = snd_soc_dapm_suspend_check(widget);
926 return widget->inputs;
927 }
Richard Purdie2b97eab2006-10-06 18:32:18 +0200928 }
929
930 list_for_each_entry(path, &widget->sources, list_sink) {
Mark Browne56235e2011-09-21 18:19:14 +0100931 DAPM_UPDATE_STAT(widget, neighbour_checks);
932
Mark Brownbf3a9e12011-06-13 16:42:29 +0100933 if (path->weak)
934 continue;
935
Richard Purdie2b97eab2006-10-06 18:32:18 +0200936 if (path->walked)
937 continue;
938
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100939 trace_snd_soc_dapm_input_path(widget, path);
940
Richard Purdie2b97eab2006-10-06 18:32:18 +0200941 if (path->source && path->connect) {
942 path->walked = 1;
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100943
944 /* do we need to add this widget to the list ? */
945 if (list) {
946 int err;
Liam Girdwood90c6ce02012-06-05 19:27:15 +0100947 err = dapm_list_add_widget(list, path->source);
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100948 if (err < 0) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +0000949 dev_err(widget->dapm->dev,
950 "ASoC: could not add widget %s\n",
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100951 widget->name);
952 return con;
953 }
954 }
955
956 con += is_connected_input_ep(path->source, list);
Richard Purdie2b97eab2006-10-06 18:32:18 +0200957 }
958 }
959
Mark Brown024dc072011-10-09 11:52:05 +0100960 widget->inputs = con;
961
Richard Purdie2b97eab2006-10-06 18:32:18 +0200962 return con;
963}
964
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100965/**
966 * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets.
967 * @dai: the soc DAI.
968 * @stream: stream direction.
969 * @list: list of active widgets for this stream.
970 *
971 * Queries DAPM graph as to whether an valid audio stream path exists for
972 * the initial stream specified by name. This takes into account
973 * current mixer and mux kcontrol settings. Creates list of valid widgets.
974 *
975 * Returns the number of valid paths or negative error.
976 */
977int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
978 struct snd_soc_dapm_widget_list **list)
979{
980 struct snd_soc_card *card = dai->card;
981 int paths;
982
983 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
984 dapm_reset(card);
985
986 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
987 paths = is_connected_output_ep(dai->playback_widget, list);
988 else
Liam Girdwoodd298caa2012-06-01 18:03:00 +0100989 paths = is_connected_input_ep(dai->capture_widget, list);
Liam Girdwoodec2e3032012-04-18 11:41:11 +0100990
991 trace_snd_soc_dapm_connected(paths, stream);
992 dapm_clear_walk(&card->dapm);
993 mutex_unlock(&card->dapm_mutex);
994
995 return paths;
996}
997
Richard Purdie2b97eab2006-10-06 18:32:18 +0200998/*
Jarkko Nikulae2be2cc2008-06-25 14:42:07 +0300999 * Handler for generic register modifier widget.
1000 */
1001int dapm_reg_event(struct snd_soc_dapm_widget *w,
1002 struct snd_kcontrol *kcontrol, int event)
1003{
1004 unsigned int val;
1005
1006 if (SND_SOC_DAPM_EVENT_ON(event))
1007 val = w->on_val;
1008 else
1009 val = w->off_val;
1010
Liam Girdwood49575fb52012-03-06 18:16:19 +00001011 soc_widget_update_bits_locked(w, -(w->reg + 1),
Jarkko Nikulae2be2cc2008-06-25 14:42:07 +03001012 w->mask << w->shift, val << w->shift);
1013
1014 return 0;
1015}
Mark Brown11589412008-07-29 11:42:23 +01001016EXPORT_SYMBOL_GPL(dapm_reg_event);
Jarkko Nikulae2be2cc2008-06-25 14:42:07 +03001017
Mark Brown62ea8742012-01-21 21:14:48 +00001018/*
1019 * Handler for regulator supply widget.
1020 */
1021int dapm_regulator_event(struct snd_soc_dapm_widget *w,
1022 struct snd_kcontrol *kcontrol, int event)
1023{
Mark Brownc05b84d2012-09-07 12:57:11 +08001024 int ret;
1025
1026 if (SND_SOC_DAPM_EVENT_ON(event)) {
1027 if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) {
Mark Brown8784c772013-01-10 19:33:47 +00001028 ret = regulator_allow_bypass(w->regulator, false);
Mark Brownc05b84d2012-09-07 12:57:11 +08001029 if (ret != 0)
1030 dev_warn(w->dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001031 "ASoC: Failed to bypass %s: %d\n",
Mark Brownc05b84d2012-09-07 12:57:11 +08001032 w->name, ret);
1033 }
1034
Liam Girdwooda3cc0562012-03-09 17:20:16 +00001035 return regulator_enable(w->regulator);
Mark Brownc05b84d2012-09-07 12:57:11 +08001036 } else {
1037 if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) {
Mark Brown8784c772013-01-10 19:33:47 +00001038 ret = regulator_allow_bypass(w->regulator, true);
Mark Brownc05b84d2012-09-07 12:57:11 +08001039 if (ret != 0)
1040 dev_warn(w->dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001041 "ASoC: Failed to unbypass %s: %d\n",
Mark Brownc05b84d2012-09-07 12:57:11 +08001042 w->name, ret);
1043 }
1044
Liam Girdwooda3cc0562012-03-09 17:20:16 +00001045 return regulator_disable_deferred(w->regulator, w->shift);
Mark Brownc05b84d2012-09-07 12:57:11 +08001046 }
Mark Brown62ea8742012-01-21 21:14:48 +00001047}
1048EXPORT_SYMBOL_GPL(dapm_regulator_event);
1049
Ola Liljad7e7eb92012-05-24 15:26:25 +02001050/*
1051 * Handler for clock supply widget.
1052 */
1053int dapm_clock_event(struct snd_soc_dapm_widget *w,
1054 struct snd_kcontrol *kcontrol, int event)
1055{
1056 if (!w->clk)
1057 return -EIO;
1058
Mark Brownec029952012-06-04 08:16:20 +01001059#ifdef CONFIG_HAVE_CLK
Ola Liljad7e7eb92012-05-24 15:26:25 +02001060 if (SND_SOC_DAPM_EVENT_ON(event)) {
1061 return clk_enable(w->clk);
1062 } else {
1063 clk_disable(w->clk);
1064 return 0;
1065 }
Mark Brownec029952012-06-04 08:16:20 +01001066#endif
Marek Belisko98b3cf12012-07-12 23:00:16 +02001067 return 0;
Ola Liljad7e7eb92012-05-24 15:26:25 +02001068}
1069EXPORT_SYMBOL_GPL(dapm_clock_event);
1070
Mark Brownd8050022011-09-28 18:28:23 +01001071static int dapm_widget_power_check(struct snd_soc_dapm_widget *w)
1072{
Mark Brown9b8a83b2011-10-04 22:15:59 +01001073 if (w->power_checked)
1074 return w->new_power;
1075
Mark Brownd8050022011-09-28 18:28:23 +01001076 if (w->force)
Mark Brown9b8a83b2011-10-04 22:15:59 +01001077 w->new_power = 1;
Mark Brownd8050022011-09-28 18:28:23 +01001078 else
Mark Brown9b8a83b2011-10-04 22:15:59 +01001079 w->new_power = w->power_check(w);
1080
1081 w->power_checked = true;
1082
1083 return w->new_power;
Mark Brownd8050022011-09-28 18:28:23 +01001084}
1085
Mark Browncd0f2d42009-04-20 16:56:59 +01001086/* Generic check to see if a widget should be powered.
1087 */
1088static int dapm_generic_check_power(struct snd_soc_dapm_widget *w)
1089{
1090 int in, out;
1091
Mark Brownde02d072011-09-20 21:43:24 +01001092 DAPM_UPDATE_STAT(w, power_checks);
1093
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001094 in = is_connected_input_ep(w, NULL);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001095 dapm_clear_walk(w->dapm);
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001096 out = is_connected_output_ep(w, NULL);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001097 dapm_clear_walk(w->dapm);
Mark Browncd0f2d42009-04-20 16:56:59 +01001098 return out != 0 && in != 0;
1099}
1100
Mark Brown888df392012-02-16 19:37:51 -08001101static int dapm_dai_check_power(struct snd_soc_dapm_widget *w)
1102{
1103 DAPM_UPDATE_STAT(w, power_checks);
1104
Mark Brown1eee1b32012-04-10 13:57:46 +01001105 if (w->active)
1106 return w->active;
1107
1108 return dapm_generic_check_power(w);
Mark Brown888df392012-02-16 19:37:51 -08001109}
1110
Mark Brown6ea31b92009-04-20 17:15:41 +01001111/* Check to see if an ADC has power */
1112static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
1113{
1114 int in;
1115
Mark Brownde02d072011-09-20 21:43:24 +01001116 DAPM_UPDATE_STAT(w, power_checks);
1117
Mark Brown6ea31b92009-04-20 17:15:41 +01001118 if (w->active) {
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001119 in = is_connected_input_ep(w, NULL);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001120 dapm_clear_walk(w->dapm);
Mark Brown6ea31b92009-04-20 17:15:41 +01001121 return in != 0;
1122 } else {
1123 return dapm_generic_check_power(w);
1124 }
1125}
1126
1127/* Check to see if a DAC has power */
1128static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
1129{
1130 int out;
1131
Mark Brownde02d072011-09-20 21:43:24 +01001132 DAPM_UPDATE_STAT(w, power_checks);
1133
Mark Brown6ea31b92009-04-20 17:15:41 +01001134 if (w->active) {
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001135 out = is_connected_output_ep(w, NULL);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001136 dapm_clear_walk(w->dapm);
Mark Brown6ea31b92009-04-20 17:15:41 +01001137 return out != 0;
1138 } else {
1139 return dapm_generic_check_power(w);
1140 }
1141}
1142
Mark Brown246d0a12009-04-22 18:24:55 +01001143/* Check to see if a power supply is needed */
1144static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
1145{
1146 struct snd_soc_dapm_path *path;
Mark Brown246d0a12009-04-22 18:24:55 +01001147
Mark Brownde02d072011-09-20 21:43:24 +01001148 DAPM_UPDATE_STAT(w, power_checks);
1149
Mark Brown246d0a12009-04-22 18:24:55 +01001150 /* Check if one of our outputs is connected */
1151 list_for_each_entry(path, &w->sinks, list_source) {
Mark Browna8fdac82011-09-28 18:20:26 +01001152 DAPM_UPDATE_STAT(w, neighbour_checks);
1153
Mark Brownbf3a9e12011-06-13 16:42:29 +01001154 if (path->weak)
1155 continue;
1156
Mark Brown215edda2009-09-08 18:59:05 +01001157 if (path->connected &&
1158 !path->connected(path->source, path->sink))
1159 continue;
1160
Mark Brown30173582011-02-11 11:42:19 +00001161 if (!path->sink)
1162 continue;
1163
Mark Brownf68d7e12011-10-04 22:57:50 +01001164 if (dapm_widget_power_check(path->sink))
1165 return 1;
Mark Brown246d0a12009-04-22 18:24:55 +01001166 }
1167
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001168 dapm_clear_walk(w->dapm);
Mark Brown246d0a12009-04-22 18:24:55 +01001169
Mark Brownf68d7e12011-10-04 22:57:50 +01001170 return 0;
Mark Brown246d0a12009-04-22 18:24:55 +01001171}
1172
Mark Brown35c64bc2011-09-28 18:23:53 +01001173static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w)
1174{
1175 return 1;
1176}
1177
Mark Brown38357ab2009-06-06 19:03:23 +01001178static int dapm_seq_compare(struct snd_soc_dapm_widget *a,
1179 struct snd_soc_dapm_widget *b,
Mark Brown828a8422011-01-15 13:14:30 +00001180 bool power_up)
Mark Brown42aa3412009-03-01 19:21:10 +00001181{
Mark Brown828a8422011-01-15 13:14:30 +00001182 int *sort;
1183
1184 if (power_up)
1185 sort = dapm_up_seq;
1186 else
1187 sort = dapm_down_seq;
1188
Mark Brown38357ab2009-06-06 19:03:23 +01001189 if (sort[a->id] != sort[b->id])
1190 return sort[a->id] - sort[b->id];
Mark Brown20e48592011-01-15 13:40:50 +00001191 if (a->subseq != b->subseq) {
1192 if (power_up)
1193 return a->subseq - b->subseq;
1194 else
1195 return b->subseq - a->subseq;
1196 }
Mark Brownb22ead22009-06-07 12:51:26 +01001197 if (a->reg != b->reg)
1198 return a->reg - b->reg;
Mark Brown84dab562010-11-12 15:28:42 +00001199 if (a->dapm != b->dapm)
1200 return (unsigned long)a->dapm - (unsigned long)b->dapm;
Mark Brown42aa3412009-03-01 19:21:10 +00001201
Mark Brown38357ab2009-06-06 19:03:23 +01001202 return 0;
1203}
Mark Brown42aa3412009-03-01 19:21:10 +00001204
Mark Brown38357ab2009-06-06 19:03:23 +01001205/* Insert a widget in order into a DAPM power sequence. */
1206static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget,
1207 struct list_head *list,
Mark Brown828a8422011-01-15 13:14:30 +00001208 bool power_up)
Mark Brown38357ab2009-06-06 19:03:23 +01001209{
1210 struct snd_soc_dapm_widget *w;
1211
1212 list_for_each_entry(w, list, power_list)
Mark Brown828a8422011-01-15 13:14:30 +00001213 if (dapm_seq_compare(new_widget, w, power_up) < 0) {
Mark Brown38357ab2009-06-06 19:03:23 +01001214 list_add_tail(&new_widget->power_list, &w->power_list);
1215 return;
Mark Brown42aa3412009-03-01 19:21:10 +00001216 }
Mark Brown6ea31b92009-04-20 17:15:41 +01001217
Mark Brown38357ab2009-06-06 19:03:23 +01001218 list_add_tail(&new_widget->power_list, list);
1219}
Mark Brown42aa3412009-03-01 19:21:10 +00001220
Mark Brown68f89ad2010-11-03 23:51:49 -04001221static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm,
1222 struct snd_soc_dapm_widget *w, int event)
1223{
1224 struct snd_soc_card *card = dapm->card;
1225 const char *ev_name;
1226 int power, ret;
1227
1228 switch (event) {
1229 case SND_SOC_DAPM_PRE_PMU:
1230 ev_name = "PRE_PMU";
1231 power = 1;
1232 break;
1233 case SND_SOC_DAPM_POST_PMU:
1234 ev_name = "POST_PMU";
1235 power = 1;
1236 break;
1237 case SND_SOC_DAPM_PRE_PMD:
1238 ev_name = "PRE_PMD";
1239 power = 0;
1240 break;
1241 case SND_SOC_DAPM_POST_PMD:
1242 ev_name = "POST_PMD";
1243 power = 0;
1244 break;
1245 default:
1246 BUG();
1247 return;
1248 }
1249
1250 if (w->power != power)
1251 return;
1252
1253 if (w->event && (w->event_flags & event)) {
1254 pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n",
1255 w->name, ev_name);
Mark Brown84e90932010-11-04 00:07:02 -04001256 trace_snd_soc_dapm_widget_event_start(w, event);
Mark Brown68f89ad2010-11-03 23:51:49 -04001257 ret = w->event(w, NULL, event);
Mark Brown84e90932010-11-04 00:07:02 -04001258 trace_snd_soc_dapm_widget_event_done(w, event);
Mark Brown68f89ad2010-11-03 23:51:49 -04001259 if (ret < 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001260 dev_err(dapm->dev, "ASoC: %s: %s event failed: %d\n",
Mark Brown68f89ad2010-11-03 23:51:49 -04001261 ev_name, w->name, ret);
1262 }
1263}
1264
Mark Brownb22ead22009-06-07 12:51:26 +01001265/* Apply the coalesced changes from a DAPM sequence */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001266static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm,
Mark Brownb22ead22009-06-07 12:51:26 +01001267 struct list_head *pending)
Mark Brown163cac02009-06-07 10:12:52 +01001268{
Jarkko Nikula3a45b862010-11-05 20:35:21 +02001269 struct snd_soc_card *card = dapm->card;
Mark Brown68f89ad2010-11-03 23:51:49 -04001270 struct snd_soc_dapm_widget *w;
1271 int reg, power;
Mark Brownb22ead22009-06-07 12:51:26 +01001272 unsigned int value = 0;
1273 unsigned int mask = 0;
1274 unsigned int cur_mask;
1275
1276 reg = list_first_entry(pending, struct snd_soc_dapm_widget,
1277 power_list)->reg;
1278
1279 list_for_each_entry(w, pending, power_list) {
1280 cur_mask = 1 << w->shift;
1281 BUG_ON(reg != w->reg);
1282
1283 if (w->invert)
1284 power = !w->power;
1285 else
1286 power = w->power;
1287
1288 mask |= cur_mask;
1289 if (power)
1290 value |= cur_mask;
1291
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +02001292 pop_dbg(dapm->dev, card->pop_time,
Mark Brownb22ead22009-06-07 12:51:26 +01001293 "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n",
1294 w->name, reg, value, mask);
Mark Brown81628102009-06-07 13:21:24 +01001295
Mark Brown68f89ad2010-11-03 23:51:49 -04001296 /* Check for events */
1297 dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU);
1298 dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD);
Mark Brownb22ead22009-06-07 12:51:26 +01001299 }
1300
Mark Brown81628102009-06-07 13:21:24 +01001301 if (reg >= 0) {
Mark Brown29376bc2011-06-19 13:49:28 +01001302 /* Any widget will do, they should all be updating the
1303 * same register.
1304 */
1305 w = list_first_entry(pending, struct snd_soc_dapm_widget,
1306 power_list);
1307
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +02001308 pop_dbg(dapm->dev, card->pop_time,
Mark Brown81628102009-06-07 13:21:24 +01001309 "pop test : Applying 0x%x/0x%x to %x in %dms\n",
Jarkko Nikula3a45b862010-11-05 20:35:21 +02001310 value, mask, reg, card->pop_time);
1311 pop_wait(card->pop_time);
Liam Girdwood49575fb52012-03-06 18:16:19 +00001312 soc_widget_update_bits_locked(w, reg, mask, value);
Mark Brown81628102009-06-07 13:21:24 +01001313 }
1314
1315 list_for_each_entry(w, pending, power_list) {
Mark Brown68f89ad2010-11-03 23:51:49 -04001316 dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU);
1317 dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD);
Mark Brown42aa3412009-03-01 19:21:10 +00001318 }
Mark Brown42aa3412009-03-01 19:21:10 +00001319}
1320
Mark Brownb22ead22009-06-07 12:51:26 +01001321/* Apply a DAPM power sequence.
1322 *
1323 * We walk over a pre-sorted list of widgets to apply power to. In
1324 * order to minimise the number of writes to the device required
1325 * multiple widgets will be updated in a single write where possible.
1326 * Currently anything that requires more than a single write is not
1327 * handled.
1328 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001329static void dapm_seq_run(struct snd_soc_dapm_context *dapm,
Mark Brown828a8422011-01-15 13:14:30 +00001330 struct list_head *list, int event, bool power_up)
Mark Brownb22ead22009-06-07 12:51:26 +01001331{
1332 struct snd_soc_dapm_widget *w, *n;
1333 LIST_HEAD(pending);
1334 int cur_sort = -1;
Mark Brown20e48592011-01-15 13:40:50 +00001335 int cur_subseq = -1;
Mark Brownb22ead22009-06-07 12:51:26 +01001336 int cur_reg = SND_SOC_NOPM;
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001337 struct snd_soc_dapm_context *cur_dapm = NULL;
Mark Brown474b62d2011-01-18 16:14:44 +00001338 int ret, i;
Mark Brown828a8422011-01-15 13:14:30 +00001339 int *sort;
1340
1341 if (power_up)
1342 sort = dapm_up_seq;
1343 else
1344 sort = dapm_down_seq;
Mark Brown163cac02009-06-07 10:12:52 +01001345
Mark Brownb22ead22009-06-07 12:51:26 +01001346 list_for_each_entry_safe(w, n, list, power_list) {
1347 ret = 0;
1348
1349 /* Do we need to apply any queued changes? */
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001350 if (sort[w->id] != cur_sort || w->reg != cur_reg ||
Mark Brown20e48592011-01-15 13:40:50 +00001351 w->dapm != cur_dapm || w->subseq != cur_subseq) {
Mark Brownb22ead22009-06-07 12:51:26 +01001352 if (!list_empty(&pending))
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001353 dapm_seq_run_coalesced(cur_dapm, &pending);
Mark Brownb22ead22009-06-07 12:51:26 +01001354
Mark Brown474b62d2011-01-18 16:14:44 +00001355 if (cur_dapm && cur_dapm->seq_notifier) {
1356 for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++)
1357 if (sort[i] == cur_sort)
1358 cur_dapm->seq_notifier(cur_dapm,
Mark Brownf85a9e02011-01-26 21:41:28 +00001359 i,
1360 cur_subseq);
Mark Brown474b62d2011-01-18 16:14:44 +00001361 }
1362
Mark Brownb22ead22009-06-07 12:51:26 +01001363 INIT_LIST_HEAD(&pending);
1364 cur_sort = -1;
Mark Brownb0b3e6f2011-07-16 10:55:08 +09001365 cur_subseq = INT_MIN;
Mark Brownb22ead22009-06-07 12:51:26 +01001366 cur_reg = SND_SOC_NOPM;
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001367 cur_dapm = NULL;
Mark Brownb22ead22009-06-07 12:51:26 +01001368 }
1369
Mark Brown163cac02009-06-07 10:12:52 +01001370 switch (w->id) {
1371 case snd_soc_dapm_pre:
1372 if (!w->event)
Mark Brownb22ead22009-06-07 12:51:26 +01001373 list_for_each_entry_safe_continue(w, n, list,
1374 power_list);
Mark Brown163cac02009-06-07 10:12:52 +01001375
Mark Brownb22ead22009-06-07 12:51:26 +01001376 if (event == SND_SOC_DAPM_STREAM_START)
Mark Brown163cac02009-06-07 10:12:52 +01001377 ret = w->event(w,
1378 NULL, SND_SOC_DAPM_PRE_PMU);
Mark Brownb22ead22009-06-07 12:51:26 +01001379 else if (event == SND_SOC_DAPM_STREAM_STOP)
Mark Brown163cac02009-06-07 10:12:52 +01001380 ret = w->event(w,
1381 NULL, SND_SOC_DAPM_PRE_PMD);
Mark Brown163cac02009-06-07 10:12:52 +01001382 break;
1383
1384 case snd_soc_dapm_post:
1385 if (!w->event)
Mark Brownb22ead22009-06-07 12:51:26 +01001386 list_for_each_entry_safe_continue(w, n, list,
1387 power_list);
Mark Brown163cac02009-06-07 10:12:52 +01001388
Mark Brownb22ead22009-06-07 12:51:26 +01001389 if (event == SND_SOC_DAPM_STREAM_START)
Mark Brown163cac02009-06-07 10:12:52 +01001390 ret = w->event(w,
1391 NULL, SND_SOC_DAPM_POST_PMU);
Mark Brownb22ead22009-06-07 12:51:26 +01001392 else if (event == SND_SOC_DAPM_STREAM_STOP)
Mark Brown163cac02009-06-07 10:12:52 +01001393 ret = w->event(w,
1394 NULL, SND_SOC_DAPM_POST_PMD);
Mark Brownb22ead22009-06-07 12:51:26 +01001395 break;
1396
Mark Brown163cac02009-06-07 10:12:52 +01001397 default:
Mark Brown81628102009-06-07 13:21:24 +01001398 /* Queue it up for application */
1399 cur_sort = sort[w->id];
Mark Brown20e48592011-01-15 13:40:50 +00001400 cur_subseq = w->subseq;
Mark Brown81628102009-06-07 13:21:24 +01001401 cur_reg = w->reg;
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001402 cur_dapm = w->dapm;
Mark Brown81628102009-06-07 13:21:24 +01001403 list_move(&w->power_list, &pending);
1404 break;
Mark Brown163cac02009-06-07 10:12:52 +01001405 }
Mark Brownb22ead22009-06-07 12:51:26 +01001406
1407 if (ret < 0)
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +02001408 dev_err(w->dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001409 "ASoC: Failed to apply widget power: %d\n", ret);
Mark Brown163cac02009-06-07 10:12:52 +01001410 }
Mark Brownb22ead22009-06-07 12:51:26 +01001411
1412 if (!list_empty(&pending))
Mark Brown28e86802011-03-08 19:29:53 +00001413 dapm_seq_run_coalesced(cur_dapm, &pending);
Mark Brown474b62d2011-01-18 16:14:44 +00001414
1415 if (cur_dapm && cur_dapm->seq_notifier) {
1416 for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++)
1417 if (sort[i] == cur_sort)
1418 cur_dapm->seq_notifier(cur_dapm,
Mark Brownf85a9e02011-01-26 21:41:28 +00001419 i, cur_subseq);
Mark Brown474b62d2011-01-18 16:14:44 +00001420 }
Mark Brown163cac02009-06-07 10:12:52 +01001421}
1422
Mark Brown97404f22010-12-14 16:13:57 +00001423static void dapm_widget_update(struct snd_soc_dapm_context *dapm)
1424{
1425 struct snd_soc_dapm_update *update = dapm->update;
1426 struct snd_soc_dapm_widget *w;
1427 int ret;
1428
1429 if (!update)
1430 return;
1431
1432 w = update->widget;
1433
1434 if (w->event &&
1435 (w->event_flags & SND_SOC_DAPM_PRE_REG)) {
1436 ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG);
1437 if (ret != 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001438 dev_err(dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n",
Mark Brown97404f22010-12-14 16:13:57 +00001439 w->name, ret);
1440 }
1441
Liam Girdwood49575fb52012-03-06 18:16:19 +00001442 ret = soc_widget_update_bits_locked(w, update->reg, update->mask,
Mark Brown97404f22010-12-14 16:13:57 +00001443 update->val);
1444 if (ret < 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001445 dev_err(dapm->dev, "ASoC: %s DAPM update failed: %d\n",
1446 w->name, ret);
Mark Brown97404f22010-12-14 16:13:57 +00001447
1448 if (w->event &&
1449 (w->event_flags & SND_SOC_DAPM_POST_REG)) {
1450 ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG);
1451 if (ret != 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001452 dev_err(dapm->dev, "ASoC: %s DAPM post-event failed: %d\n",
Mark Brown97404f22010-12-14 16:13:57 +00001453 w->name, ret);
1454 }
1455}
1456
Mark Brown9d0624a2011-02-18 11:49:43 -08001457/* Async callback run prior to DAPM sequences - brings to _PREPARE if
1458 * they're changing state.
1459 */
1460static void dapm_pre_sequence_async(void *data, async_cookie_t cookie)
1461{
1462 struct snd_soc_dapm_context *d = data;
1463 int ret;
Mark Brown97404f22010-12-14 16:13:57 +00001464
Mark Brown56fba412011-06-04 11:25:10 +01001465 /* If we're off and we're not supposed to be go into STANDBY */
1466 if (d->bias_level == SND_SOC_BIAS_OFF &&
1467 d->target_bias_level != SND_SOC_BIAS_OFF) {
Mark Brownf1aac482011-12-05 15:17:06 +00001468 if (d->dev)
1469 pm_runtime_get_sync(d->dev);
1470
Mark Brown9d0624a2011-02-18 11:49:43 -08001471 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY);
1472 if (ret != 0)
1473 dev_err(d->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001474 "ASoC: Failed to turn on bias: %d\n", ret);
Mark Brown9d0624a2011-02-18 11:49:43 -08001475 }
1476
Mark Brown56fba412011-06-04 11:25:10 +01001477 /* Prepare for a STADDBY->ON or ON->STANDBY transition */
1478 if (d->bias_level != d->target_bias_level) {
Mark Brown9d0624a2011-02-18 11:49:43 -08001479 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE);
1480 if (ret != 0)
1481 dev_err(d->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001482 "ASoC: Failed to prepare bias: %d\n", ret);
Mark Brown9d0624a2011-02-18 11:49:43 -08001483 }
1484}
1485
1486/* Async callback run prior to DAPM sequences - brings to their final
1487 * state.
1488 */
1489static void dapm_post_sequence_async(void *data, async_cookie_t cookie)
1490{
1491 struct snd_soc_dapm_context *d = data;
1492 int ret;
1493
1494 /* If we just powered the last thing off drop to standby bias */
Mark Brown56fba412011-06-04 11:25:10 +01001495 if (d->bias_level == SND_SOC_BIAS_PREPARE &&
1496 (d->target_bias_level == SND_SOC_BIAS_STANDBY ||
1497 d->target_bias_level == SND_SOC_BIAS_OFF)) {
Mark Brown9d0624a2011-02-18 11:49:43 -08001498 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY);
1499 if (ret != 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001500 dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n",
Mark Brown9d0624a2011-02-18 11:49:43 -08001501 ret);
1502 }
1503
1504 /* If we're in standby and can support bias off then do that */
Mark Brown56fba412011-06-04 11:25:10 +01001505 if (d->bias_level == SND_SOC_BIAS_STANDBY &&
1506 d->target_bias_level == SND_SOC_BIAS_OFF) {
Mark Brown9d0624a2011-02-18 11:49:43 -08001507 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF);
1508 if (ret != 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001509 dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n",
1510 ret);
Mark Brownf1aac482011-12-05 15:17:06 +00001511
1512 if (d->dev)
Mark Brownfb644e92012-01-25 19:53:58 +00001513 pm_runtime_put(d->dev);
Mark Brown9d0624a2011-02-18 11:49:43 -08001514 }
1515
1516 /* If we just powered up then move to active bias */
Mark Brown56fba412011-06-04 11:25:10 +01001517 if (d->bias_level == SND_SOC_BIAS_PREPARE &&
1518 d->target_bias_level == SND_SOC_BIAS_ON) {
Mark Brown9d0624a2011-02-18 11:49:43 -08001519 ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON);
1520 if (ret != 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001521 dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n",
Mark Brown9d0624a2011-02-18 11:49:43 -08001522 ret);
1523 }
1524}
Mark Brown97404f22010-12-14 16:13:57 +00001525
Mark Brownfe4fda52011-10-03 22:36:57 +01001526static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer,
1527 bool power, bool connect)
1528{
1529 /* If a connection is being made or broken then that update
1530 * will have marked the peer dirty, otherwise the widgets are
1531 * not connected and this update has no impact. */
1532 if (!connect)
1533 return;
1534
1535 /* If the peer is already in the state we're moving to then we
1536 * won't have an impact on it. */
1537 if (power != peer->power)
Mark Brown75c1f892011-10-04 22:28:08 +01001538 dapm_mark_dirty(peer, "peer state change");
Mark Brownfe4fda52011-10-03 22:36:57 +01001539}
1540
Mark Brown05623c42011-09-28 17:02:31 +01001541static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power,
1542 struct list_head *up_list,
1543 struct list_head *down_list)
1544{
Mark Browndb432b42011-10-03 21:06:40 +01001545 struct snd_soc_dapm_path *path;
1546
Mark Brown05623c42011-09-28 17:02:31 +01001547 if (w->power == power)
1548 return;
1549
1550 trace_snd_soc_dapm_widget_power(w, power);
1551
Mark Browndb432b42011-10-03 21:06:40 +01001552 /* If we changed our power state perhaps our neigbours changed
Mark Brownfe4fda52011-10-03 22:36:57 +01001553 * also.
Mark Browndb432b42011-10-03 21:06:40 +01001554 */
1555 list_for_each_entry(path, &w->sources, list_sink) {
1556 if (path->source) {
Mark Brownfe4fda52011-10-03 22:36:57 +01001557 dapm_widget_set_peer_power(path->source, power,
1558 path->connect);
Mark Browndb432b42011-10-03 21:06:40 +01001559 }
1560 }
Mark Brownf3bf3e42011-10-04 22:43:31 +01001561 switch (w->id) {
1562 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +00001563 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +02001564 case snd_soc_dapm_clock_supply:
Mark Brownf3bf3e42011-10-04 22:43:31 +01001565 /* Supplies can't affect their outputs, only their inputs */
1566 break;
1567 default:
1568 list_for_each_entry(path, &w->sinks, list_source) {
1569 if (path->sink) {
1570 dapm_widget_set_peer_power(path->sink, power,
1571 path->connect);
1572 }
Mark Browndb432b42011-10-03 21:06:40 +01001573 }
Mark Brownf3bf3e42011-10-04 22:43:31 +01001574 break;
Mark Browndb432b42011-10-03 21:06:40 +01001575 }
1576
Mark Brown05623c42011-09-28 17:02:31 +01001577 if (power)
1578 dapm_seq_insert(w, up_list, true);
1579 else
1580 dapm_seq_insert(w, down_list, false);
1581
1582 w->power = power;
1583}
1584
Mark Brown7c81beb2011-09-20 22:22:32 +01001585static void dapm_power_one_widget(struct snd_soc_dapm_widget *w,
1586 struct list_head *up_list,
1587 struct list_head *down_list)
1588{
Mark Brown7c81beb2011-09-20 22:22:32 +01001589 int power;
1590
1591 switch (w->id) {
1592 case snd_soc_dapm_pre:
1593 dapm_seq_insert(w, down_list, false);
1594 break;
1595 case snd_soc_dapm_post:
1596 dapm_seq_insert(w, up_list, true);
1597 break;
1598
1599 default:
Mark Brownd8050022011-09-28 18:28:23 +01001600 power = dapm_widget_power_check(w);
Mark Brown7c81beb2011-09-20 22:22:32 +01001601
Mark Brown05623c42011-09-28 17:02:31 +01001602 dapm_widget_set_power(w, power, up_list, down_list);
Mark Brown7c81beb2011-09-20 22:22:32 +01001603 break;
1604 }
1605}
1606
Mark Brown42aa3412009-03-01 19:21:10 +00001607/*
Richard Purdie2b97eab2006-10-06 18:32:18 +02001608 * Scan each dapm widget for complete audio path.
1609 * A complete path is a route that has valid endpoints i.e.:-
1610 *
1611 * o DAC to output pin.
1612 * o Input Pin to ADC.
1613 * o Input pin to Output pin (bypass, sidetone)
1614 * o DAC to ADC (loopback).
1615 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001616static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
Richard Purdie2b97eab2006-10-06 18:32:18 +02001617{
Mark Brown12ea2c72011-03-02 18:17:32 +00001618 struct snd_soc_card *card = dapm->card;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001619 struct snd_soc_dapm_widget *w;
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001620 struct snd_soc_dapm_context *d;
Mark Brown291f3bb2009-06-07 13:57:17 +01001621 LIST_HEAD(up_list);
1622 LIST_HEAD(down_list);
Dan Williams2955b472012-07-09 19:33:25 -07001623 ASYNC_DOMAIN_EXCLUSIVE(async_domain);
Mark Brown56fba412011-06-04 11:25:10 +01001624 enum snd_soc_bias_level bias;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001625
Mark Brown84e90932010-11-04 00:07:02 -04001626 trace_snd_soc_dapm_start(card);
1627
Mark Brown56fba412011-06-04 11:25:10 +01001628 list_for_each_entry(d, &card->dapm_list, list) {
Mark Brown497098be2012-03-08 15:06:09 +00001629 if (d->idle_bias_off)
1630 d->target_bias_level = SND_SOC_BIAS_OFF;
1631 else
1632 d->target_bias_level = SND_SOC_BIAS_STANDBY;
Mark Brown56fba412011-06-04 11:25:10 +01001633 }
Jarkko Nikula7be31be82010-12-14 12:18:32 +02001634
Liam Girdwood6c120e12012-02-15 15:15:34 +00001635 dapm_reset(card);
Mark Brown9b8a83b2011-10-04 22:15:59 +01001636
Mark Brown6d3ddc82009-05-16 17:47:29 +01001637 /* Check which widgets we need to power and store them in
Mark Browndb432b42011-10-03 21:06:40 +01001638 * lists indicating if they should be powered up or down. We
1639 * only check widgets that have been flagged as dirty but note
1640 * that new widgets may be added to the dirty list while we
1641 * iterate.
Mark Brown6d3ddc82009-05-16 17:47:29 +01001642 */
Mark Browndb432b42011-10-03 21:06:40 +01001643 list_for_each_entry(w, &card->dapm_dirty, dirty) {
Mark Brown7c81beb2011-09-20 22:22:32 +01001644 dapm_power_one_widget(w, &up_list, &down_list);
Richard Purdie2b97eab2006-10-06 18:32:18 +02001645 }
1646
Mark Brownf9de6d72011-09-28 17:19:47 +01001647 list_for_each_entry(w, &card->widgets, list) {
Mark Brown0ff97eb2012-07-20 17:29:34 +01001648 switch (w->id) {
1649 case snd_soc_dapm_pre:
1650 case snd_soc_dapm_post:
1651 /* These widgets always need to be powered */
1652 break;
1653 default:
1654 list_del_init(&w->dirty);
1655 break;
1656 }
Mark Browndb432b42011-10-03 21:06:40 +01001657
Mark Brownf9de6d72011-09-28 17:19:47 +01001658 if (w->power) {
1659 d = w->dapm;
1660
1661 /* Supplies and micbiases only bring the
1662 * context up to STANDBY as unless something
1663 * else is active and passing audio they
Mark Brownafe62362012-01-25 19:55:22 +00001664 * generally don't require full power. Signal
1665 * generators are virtual pins and have no
1666 * power impact themselves.
Mark Brownf9de6d72011-09-28 17:19:47 +01001667 */
1668 switch (w->id) {
Mark Brownafe62362012-01-25 19:55:22 +00001669 case snd_soc_dapm_siggen:
1670 break;
Mark Brownf9de6d72011-09-28 17:19:47 +01001671 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +00001672 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +02001673 case snd_soc_dapm_clock_supply:
Mark Brownf9de6d72011-09-28 17:19:47 +01001674 case snd_soc_dapm_micbias:
1675 if (d->target_bias_level < SND_SOC_BIAS_STANDBY)
1676 d->target_bias_level = SND_SOC_BIAS_STANDBY;
1677 break;
1678 default:
1679 d->target_bias_level = SND_SOC_BIAS_ON;
1680 break;
1681 }
1682 }
1683
1684 }
1685
Mark Brown85a843c2011-09-21 21:29:47 +01001686 /* Force all contexts in the card to the same bias state if
1687 * they're not ground referenced.
1688 */
Mark Brown56fba412011-06-04 11:25:10 +01001689 bias = SND_SOC_BIAS_OFF;
Mark Brown52ba67b2011-04-04 21:05:11 +09001690 list_for_each_entry(d, &card->dapm_list, list)
Mark Brown56fba412011-06-04 11:25:10 +01001691 if (d->target_bias_level > bias)
1692 bias = d->target_bias_level;
Mark Brown52ba67b2011-04-04 21:05:11 +09001693 list_for_each_entry(d, &card->dapm_list, list)
Mark Brown85a843c2011-09-21 21:29:47 +01001694 if (!d->idle_bias_off)
1695 d->target_bias_level = bias;
Mark Brown52ba67b2011-04-04 21:05:11 +09001696
Mark Brownde02d072011-09-20 21:43:24 +01001697 trace_snd_soc_dapm_walk_done(card);
Mark Brown52ba67b2011-04-04 21:05:11 +09001698
Mark Brown9d0624a2011-02-18 11:49:43 -08001699 /* Run all the bias changes in parallel */
1700 list_for_each_entry(d, &dapm->card->dapm_list, list)
1701 async_schedule_domain(dapm_pre_sequence_async, d,
1702 &async_domain);
1703 async_synchronize_full_domain(&async_domain);
Mark Brown452c5ea2009-05-17 21:41:23 +01001704
Mark Brown6d3ddc82009-05-16 17:47:29 +01001705 /* Power down widgets first; try to avoid amplifying pops. */
Mark Brown828a8422011-01-15 13:14:30 +00001706 dapm_seq_run(dapm, &down_list, event, false);
Mark Brown6d3ddc82009-05-16 17:47:29 +01001707
Mark Brown97404f22010-12-14 16:13:57 +00001708 dapm_widget_update(dapm);
1709
Mark Brown6d3ddc82009-05-16 17:47:29 +01001710 /* Now power up. */
Mark Brown828a8422011-01-15 13:14:30 +00001711 dapm_seq_run(dapm, &up_list, event, true);
Richard Purdie2b97eab2006-10-06 18:32:18 +02001712
Mark Brown9d0624a2011-02-18 11:49:43 -08001713 /* Run all the bias changes in parallel */
1714 list_for_each_entry(d, &dapm->card->dapm_list, list)
1715 async_schedule_domain(dapm_post_sequence_async, d,
1716 &async_domain);
1717 async_synchronize_full_domain(&async_domain);
Mark Brown452c5ea2009-05-17 21:41:23 +01001718
Liam Girdwood8078d872012-02-15 15:15:35 +00001719 /* do we need to notify any clients that DAPM event is complete */
1720 list_for_each_entry(d, &card->dapm_list, list) {
1721 if (d->stream_event)
1722 d->stream_event(d, event);
1723 }
1724
Jarkko Nikulafd8d3bc2010-11-09 14:40:28 +02001725 pop_dbg(dapm->dev, card->pop_time,
1726 "DAPM sequencing finished, waiting %dms\n", card->pop_time);
Jarkko Nikula3a45b862010-11-05 20:35:21 +02001727 pop_wait(card->pop_time);
Mark Browncb507e72009-07-08 18:54:57 +01001728
Mark Brown84e90932010-11-04 00:07:02 -04001729 trace_snd_soc_dapm_done(card);
1730
Mark Brown42aa3412009-03-01 19:21:10 +00001731 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001732}
1733
Mark Brown79fb9382009-08-21 16:38:13 +01001734#ifdef CONFIG_DEBUG_FS
Mark Brown79fb9382009-08-21 16:38:13 +01001735static ssize_t dapm_widget_power_read_file(struct file *file,
1736 char __user *user_buf,
1737 size_t count, loff_t *ppos)
1738{
1739 struct snd_soc_dapm_widget *w = file->private_data;
1740 char *buf;
1741 int in, out;
1742 ssize_t ret;
1743 struct snd_soc_dapm_path *p = NULL;
1744
1745 buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
1746 if (!buf)
1747 return -ENOMEM;
1748
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001749 in = is_connected_input_ep(w, NULL);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001750 dapm_clear_walk(w->dapm);
Liam Girdwoodec2e3032012-04-18 11:41:11 +01001751 out = is_connected_output_ep(w, NULL);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001752 dapm_clear_walk(w->dapm);
Mark Brown79fb9382009-08-21 16:38:13 +01001753
Mark Brownf13ebad2012-03-03 18:01:01 +00001754 ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d",
1755 w->name, w->power ? "On" : "Off",
1756 w->force ? " (forced)" : "", in, out);
Mark Brown79fb9382009-08-21 16:38:13 +01001757
Mark Brownd033c362009-12-04 15:25:56 +00001758 if (w->reg >= 0)
1759 ret += snprintf(buf + ret, PAGE_SIZE - ret,
1760 " - R%d(0x%x) bit %d",
1761 w->reg, w->reg, w->shift);
1762
1763 ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n");
1764
Mark Brown3eef08b2009-09-14 16:49:00 +01001765 if (w->sname)
1766 ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n",
1767 w->sname,
1768 w->active ? "active" : "inactive");
Mark Brown79fb9382009-08-21 16:38:13 +01001769
1770 list_for_each_entry(p, &w->sources, list_sink) {
Mark Brown215edda2009-09-08 18:59:05 +01001771 if (p->connected && !p->connected(w, p->sink))
1772 continue;
1773
Mark Brown79fb9382009-08-21 16:38:13 +01001774 if (p->connect)
1775 ret += snprintf(buf + ret, PAGE_SIZE - ret,
Dimitris Papastamos67f5ed62011-02-24 17:09:32 +00001776 " in \"%s\" \"%s\"\n",
Mark Brown79fb9382009-08-21 16:38:13 +01001777 p->name ? p->name : "static",
1778 p->source->name);
1779 }
1780 list_for_each_entry(p, &w->sinks, list_source) {
Mark Brown215edda2009-09-08 18:59:05 +01001781 if (p->connected && !p->connected(w, p->sink))
1782 continue;
1783
Mark Brown79fb9382009-08-21 16:38:13 +01001784 if (p->connect)
1785 ret += snprintf(buf + ret, PAGE_SIZE - ret,
Dimitris Papastamos67f5ed62011-02-24 17:09:32 +00001786 " out \"%s\" \"%s\"\n",
Mark Brown79fb9382009-08-21 16:38:13 +01001787 p->name ? p->name : "static",
1788 p->sink->name);
1789 }
1790
1791 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
1792
1793 kfree(buf);
1794 return ret;
1795}
1796
1797static const struct file_operations dapm_widget_power_fops = {
Stephen Boyd234e3402012-04-05 14:25:11 -07001798 .open = simple_open,
Mark Brown79fb9382009-08-21 16:38:13 +01001799 .read = dapm_widget_power_read_file,
Arnd Bergmann6038f372010-08-15 18:52:59 +02001800 .llseek = default_llseek,
Mark Brown79fb9382009-08-21 16:38:13 +01001801};
1802
Mark Brownef49e4f2011-04-04 20:48:13 +09001803static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf,
1804 size_t count, loff_t *ppos)
1805{
1806 struct snd_soc_dapm_context *dapm = file->private_data;
1807 char *level;
1808
1809 switch (dapm->bias_level) {
1810 case SND_SOC_BIAS_ON:
1811 level = "On\n";
1812 break;
1813 case SND_SOC_BIAS_PREPARE:
1814 level = "Prepare\n";
1815 break;
1816 case SND_SOC_BIAS_STANDBY:
1817 level = "Standby\n";
1818 break;
1819 case SND_SOC_BIAS_OFF:
1820 level = "Off\n";
1821 break;
1822 default:
1823 BUG();
1824 level = "Unknown\n";
1825 break;
1826 }
1827
1828 return simple_read_from_buffer(user_buf, count, ppos, level,
1829 strlen(level));
1830}
1831
1832static const struct file_operations dapm_bias_fops = {
Stephen Boyd234e3402012-04-05 14:25:11 -07001833 .open = simple_open,
Mark Brownef49e4f2011-04-04 20:48:13 +09001834 .read = dapm_bias_read_file,
1835 .llseek = default_llseek,
1836};
1837
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +02001838void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
1839 struct dentry *parent)
Mark Brown79fb9382009-08-21 16:38:13 +01001840{
Mark Brown79fb9382009-08-21 16:38:13 +01001841 struct dentry *d;
1842
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +02001843 dapm->debugfs_dapm = debugfs_create_dir("dapm", parent);
1844
1845 if (!dapm->debugfs_dapm) {
Liam Girdwoodf1e90af2012-03-06 18:13:25 +00001846 dev_warn(dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00001847 "ASoC: Failed to create DAPM debugfs directory\n");
Mark Brown79fb9382009-08-21 16:38:13 +01001848 return;
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +02001849 }
Mark Brown79fb9382009-08-21 16:38:13 +01001850
Mark Brownef49e4f2011-04-04 20:48:13 +09001851 d = debugfs_create_file("bias_level", 0444,
1852 dapm->debugfs_dapm, dapm,
1853 &dapm_bias_fops);
1854 if (!d)
1855 dev_warn(dapm->dev,
1856 "ASoC: Failed to create bias level debugfs file\n");
Mark Brown79fb9382009-08-21 16:38:13 +01001857}
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02001858
1859static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w)
1860{
1861 struct snd_soc_dapm_context *dapm = w->dapm;
1862 struct dentry *d;
1863
1864 if (!dapm->debugfs_dapm || !w->name)
1865 return;
1866
1867 d = debugfs_create_file(w->name, 0444,
1868 dapm->debugfs_dapm, w,
1869 &dapm_widget_power_fops);
1870 if (!d)
1871 dev_warn(w->dapm->dev,
1872 "ASoC: Failed to create %s debugfs file\n",
1873 w->name);
1874}
1875
Lars-Peter Clausen6c45e122011-04-30 19:45:50 +02001876static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
1877{
1878 debugfs_remove_recursive(dapm->debugfs_dapm);
1879}
1880
Mark Brown79fb9382009-08-21 16:38:13 +01001881#else
Lars-Peter Clausen8eecaf62011-04-30 19:45:48 +02001882void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm,
1883 struct dentry *parent)
Mark Brown79fb9382009-08-21 16:38:13 +01001884{
1885}
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02001886
1887static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w)
1888{
1889}
1890
Lars-Peter Clausen6c45e122011-04-30 19:45:50 +02001891static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm)
1892{
1893}
1894
Mark Brown79fb9382009-08-21 16:38:13 +01001895#endif
1896
Richard Purdie2b97eab2006-10-06 18:32:18 +02001897/* test and update the power status of a mux widget */
Liam Girdwood4edbb3452012-03-07 10:38:27 +00001898static int soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
Liam Girdwood40f02cd2012-02-06 16:05:14 +00001899 struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e)
Richard Purdie2b97eab2006-10-06 18:32:18 +02001900{
1901 struct snd_soc_dapm_path *path;
1902 int found = 0;
1903
Peter Ujfalusieff317d2009-01-15 14:40:47 +02001904 if (widget->id != snd_soc_dapm_mux &&
Dimitris Papastamos24ff33a2010-12-16 15:53:39 +00001905 widget->id != snd_soc_dapm_virt_mux &&
Peter Ujfalusieff317d2009-01-15 14:40:47 +02001906 widget->id != snd_soc_dapm_value_mux)
Richard Purdie2b97eab2006-10-06 18:32:18 +02001907 return -ENODEV;
1908
Richard Purdie2b97eab2006-10-06 18:32:18 +02001909 /* find dapm widget path assoc with kcontrol */
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +02001910 list_for_each_entry(path, &widget->dapm->card->paths, list) {
Richard Purdie2b97eab2006-10-06 18:32:18 +02001911 if (path->kcontrol != kcontrol)
1912 continue;
1913
Richard Zhaocb01e2b2008-10-07 08:05:20 +08001914 if (!path->name || !e->texts[mux])
Richard Purdie2b97eab2006-10-06 18:32:18 +02001915 continue;
1916
1917 found = 1;
1918 /* we now need to match the string in the enum to the path */
Mark Browndb432b42011-10-03 21:06:40 +01001919 if (!(strcmp(path->name, e->texts[mux]))) {
Richard Purdie2b97eab2006-10-06 18:32:18 +02001920 path->connect = 1; /* new connection */
Mark Brown75c1f892011-10-04 22:28:08 +01001921 dapm_mark_dirty(path->source, "mux connection");
Mark Browndb432b42011-10-03 21:06:40 +01001922 } else {
1923 if (path->connect)
Mark Brown75c1f892011-10-04 22:28:08 +01001924 dapm_mark_dirty(path->source,
1925 "mux disconnection");
Richard Purdie2b97eab2006-10-06 18:32:18 +02001926 path->connect = 0; /* old connection must be powered down */
Mark Browndb432b42011-10-03 21:06:40 +01001927 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02001928 }
1929
Mark Browndb432b42011-10-03 21:06:40 +01001930 if (found) {
Mark Brown75c1f892011-10-04 22:28:08 +01001931 dapm_mark_dirty(widget, "mux change");
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001932 dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
Mark Browndb432b42011-10-03 21:06:40 +01001933 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02001934
Liam Girdwood618dae12012-04-25 12:12:51 +01001935 return found;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001936}
Liam Girdwood4edbb3452012-03-07 10:38:27 +00001937
1938int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
1939 struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e)
1940{
1941 struct snd_soc_card *card = widget->dapm->card;
1942 int ret;
1943
Liam Girdwood3cd04342012-03-09 12:02:08 +00001944 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Liam Girdwood4edbb3452012-03-07 10:38:27 +00001945 ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e);
1946 mutex_unlock(&card->dapm_mutex);
Liam Girdwood618dae12012-04-25 12:12:51 +01001947 if (ret > 0)
1948 soc_dpcm_runtime_update(widget);
Liam Girdwood4edbb3452012-03-07 10:38:27 +00001949 return ret;
1950}
Liam Girdwood40f02cd2012-02-06 16:05:14 +00001951EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power);
Richard Purdie2b97eab2006-10-06 18:32:18 +02001952
Milan plzik1b075e32008-01-10 14:39:46 +01001953/* test and update the power status of a mixer or switch widget */
Liam Girdwood4edbb3452012-03-07 10:38:27 +00001954static int soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
Mark Brown283375c2009-12-07 18:09:03 +00001955 struct snd_kcontrol *kcontrol, int connect)
Richard Purdie2b97eab2006-10-06 18:32:18 +02001956{
1957 struct snd_soc_dapm_path *path;
1958 int found = 0;
1959
Milan plzik1b075e32008-01-10 14:39:46 +01001960 if (widget->id != snd_soc_dapm_mixer &&
Ian Moltonca9c1aa2009-01-06 20:11:51 +00001961 widget->id != snd_soc_dapm_mixer_named_ctl &&
Milan plzik1b075e32008-01-10 14:39:46 +01001962 widget->id != snd_soc_dapm_switch)
Richard Purdie2b97eab2006-10-06 18:32:18 +02001963 return -ENODEV;
1964
Richard Purdie2b97eab2006-10-06 18:32:18 +02001965 /* find dapm widget path assoc with kcontrol */
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +02001966 list_for_each_entry(path, &widget->dapm->card->paths, list) {
Richard Purdie2b97eab2006-10-06 18:32:18 +02001967 if (path->kcontrol != kcontrol)
1968 continue;
1969
1970 /* found, now check type */
1971 found = 1;
Mark Brown283375c2009-12-07 18:09:03 +00001972 path->connect = connect;
Mark Brown75c1f892011-10-04 22:28:08 +01001973 dapm_mark_dirty(path->source, "mixer connection");
Richard Purdie2b97eab2006-10-06 18:32:18 +02001974 }
1975
Mark Browndb432b42011-10-03 21:06:40 +01001976 if (found) {
Mark Brown75c1f892011-10-04 22:28:08 +01001977 dapm_mark_dirty(widget, "mixer update");
Liam Girdwoodce6120c2010-11-05 15:53:46 +02001978 dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
Mark Browndb432b42011-10-03 21:06:40 +01001979 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02001980
Liam Girdwood618dae12012-04-25 12:12:51 +01001981 return found;
Richard Purdie2b97eab2006-10-06 18:32:18 +02001982}
Liam Girdwood4edbb3452012-03-07 10:38:27 +00001983
1984int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
1985 struct snd_kcontrol *kcontrol, int connect)
1986{
1987 struct snd_soc_card *card = widget->dapm->card;
1988 int ret;
1989
Liam Girdwood3cd04342012-03-09 12:02:08 +00001990 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Liam Girdwood4edbb3452012-03-07 10:38:27 +00001991 ret = soc_dapm_mixer_update_power(widget, kcontrol, connect);
1992 mutex_unlock(&card->dapm_mutex);
Liam Girdwood618dae12012-04-25 12:12:51 +01001993 if (ret > 0)
1994 soc_dpcm_runtime_update(widget);
Liam Girdwood4edbb3452012-03-07 10:38:27 +00001995 return ret;
1996}
Liam Girdwood40f02cd2012-02-06 16:05:14 +00001997EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power);
Richard Purdie2b97eab2006-10-06 18:32:18 +02001998
1999/* show dapm widget status in sys fs */
2000static ssize_t dapm_widget_show(struct device *dev,
2001 struct device_attribute *attr, char *buf)
2002{
Mark Brown36ae1a92012-01-06 17:12:45 -08002003 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00002004 struct snd_soc_codec *codec =rtd->codec;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002005 struct snd_soc_dapm_widget *w;
2006 int count = 0;
2007 char *state = "not set";
2008
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002009 list_for_each_entry(w, &codec->card->widgets, list) {
2010 if (w->dapm != &codec->dapm)
2011 continue;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002012
2013 /* only display widgets that burnm power */
2014 switch (w->id) {
2015 case snd_soc_dapm_hp:
2016 case snd_soc_dapm_mic:
2017 case snd_soc_dapm_spk:
2018 case snd_soc_dapm_line:
2019 case snd_soc_dapm_micbias:
2020 case snd_soc_dapm_dac:
2021 case snd_soc_dapm_adc:
2022 case snd_soc_dapm_pga:
Olaya, Margaritad88429a2010-12-10 21:11:44 -06002023 case snd_soc_dapm_out_drv:
Richard Purdie2b97eab2006-10-06 18:32:18 +02002024 case snd_soc_dapm_mixer:
Ian Moltonca9c1aa2009-01-06 20:11:51 +00002025 case snd_soc_dapm_mixer_named_ctl:
Mark Brown246d0a12009-04-22 18:24:55 +01002026 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +00002027 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +02002028 case snd_soc_dapm_clock_supply:
Richard Purdie2b97eab2006-10-06 18:32:18 +02002029 if (w->name)
2030 count += sprintf(buf + count, "%s: %s\n",
2031 w->name, w->power ? "On":"Off");
2032 break;
2033 default:
2034 break;
2035 }
2036 }
2037
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002038 switch (codec->dapm.bias_level) {
Mark Brown0be98982008-05-19 12:31:28 +02002039 case SND_SOC_BIAS_ON:
2040 state = "On";
Richard Purdie2b97eab2006-10-06 18:32:18 +02002041 break;
Mark Brown0be98982008-05-19 12:31:28 +02002042 case SND_SOC_BIAS_PREPARE:
2043 state = "Prepare";
Richard Purdie2b97eab2006-10-06 18:32:18 +02002044 break;
Mark Brown0be98982008-05-19 12:31:28 +02002045 case SND_SOC_BIAS_STANDBY:
2046 state = "Standby";
Richard Purdie2b97eab2006-10-06 18:32:18 +02002047 break;
Mark Brown0be98982008-05-19 12:31:28 +02002048 case SND_SOC_BIAS_OFF:
2049 state = "Off";
Richard Purdie2b97eab2006-10-06 18:32:18 +02002050 break;
2051 }
2052 count += sprintf(buf + count, "PM State: %s\n", state);
2053
2054 return count;
2055}
2056
2057static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL);
2058
2059int snd_soc_dapm_sys_add(struct device *dev)
2060{
Troy Kisky12ef1932008-10-13 17:42:14 -07002061 return device_create_file(dev, &dev_attr_dapm_widget);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002062}
2063
2064static void snd_soc_dapm_sys_remove(struct device *dev)
2065{
Mark Brownaef90842009-05-16 17:53:16 +01002066 device_remove_file(dev, &dev_attr_dapm_widget);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002067}
2068
2069/* free all dapm widgets and resources */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002070static void dapm_free_widgets(struct snd_soc_dapm_context *dapm)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002071{
2072 struct snd_soc_dapm_widget *w, *next_w;
2073 struct snd_soc_dapm_path *p, *next_p;
2074
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002075 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2076 if (w->dapm != dapm)
2077 continue;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002078 list_del(&w->list);
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +02002079 /*
2080 * remove source and sink paths associated to this widget.
2081 * While removing the path, remove reference to it from both
2082 * source and sink widgets so that path is removed only once.
2083 */
2084 list_for_each_entry_safe(p, next_p, &w->sources, list_sink) {
2085 list_del(&p->list_sink);
2086 list_del(&p->list_source);
2087 list_del(&p->list);
2088 kfree(p->long_name);
2089 kfree(p);
2090 }
2091 list_for_each_entry_safe(p, next_p, &w->sinks, list_source) {
2092 list_del(&p->list_sink);
2093 list_del(&p->list_source);
2094 list_del(&p->list);
2095 kfree(p->long_name);
2096 kfree(p);
2097 }
Stephen Warrenfad59882011-04-28 17:37:59 -06002098 kfree(w->kcontrols);
Jarkko Nikulaead9b912010-11-13 20:40:44 +02002099 kfree(w->name);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002100 kfree(w);
2101 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02002102}
2103
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002104static struct snd_soc_dapm_widget *dapm_find_widget(
2105 struct snd_soc_dapm_context *dapm, const char *pin,
2106 bool search_other_contexts)
2107{
2108 struct snd_soc_dapm_widget *w;
2109 struct snd_soc_dapm_widget *fallback = NULL;
2110
2111 list_for_each_entry(w, &dapm->card->widgets, list) {
2112 if (!strcmp(w->name, pin)) {
2113 if (w->dapm == dapm)
2114 return w;
2115 else
2116 fallback = w;
2117 }
2118 }
2119
2120 if (search_other_contexts)
2121 return fallback;
2122
2123 return NULL;
2124}
2125
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002126static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
Mark Brown16499232009-01-07 18:25:13 +00002127 const char *pin, int status)
Liam Girdwooda5302182008-07-07 13:35:17 +01002128{
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002129 struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
Liam Girdwooda5302182008-07-07 13:35:17 +01002130
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002131 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002132 dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin);
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002133 return -EINVAL;
Liam Girdwooda5302182008-07-07 13:35:17 +01002134 }
2135
Mark Brown1a8b2d92012-02-16 11:50:07 -08002136 if (w->connected != status)
2137 dapm_mark_dirty(w, "pin configuration");
2138
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002139 w->connected = status;
2140 if (status == 0)
2141 w->force = 0;
Mark Brown0d867332011-04-06 11:38:14 +09002142
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02002143 return 0;
Liam Girdwooda5302182008-07-07 13:35:17 +01002144}
2145
Richard Purdie2b97eab2006-10-06 18:32:18 +02002146/**
Liam Girdwooda5302182008-07-07 13:35:17 +01002147 * snd_soc_dapm_sync - scan and power dapm paths
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002148 * @dapm: DAPM context
Richard Purdie2b97eab2006-10-06 18:32:18 +02002149 *
2150 * Walks all dapm audio paths and powers widgets according to their
2151 * stream or path usage.
2152 *
2153 * Returns 0 for success.
2154 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002155int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002156{
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002157 int ret;
2158
Mark Brown4f4c0072011-10-07 14:29:19 +01002159 /*
2160 * Suppress early reports (eg, jacks syncing their state) to avoid
2161 * silly DAPM runs during card startup.
2162 */
2163 if (!dapm->card || !dapm->card->instantiated)
2164 return 0;
2165
Liam Girdwood3cd04342012-03-09 12:02:08 +00002166 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002167 ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP);
2168 mutex_unlock(&dapm->card->dapm_mutex);
2169 return ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002170}
Liam Girdwooda5302182008-07-07 13:35:17 +01002171EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002172
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002173static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
Mark Brown215edda2009-09-08 18:59:05 +01002174 const struct snd_soc_dapm_route *route)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002175{
2176 struct snd_soc_dapm_path *path;
2177 struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w;
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002178 struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL;
Jarkko Nikulaead9b912010-11-13 20:40:44 +02002179 const char *sink;
Mark Brown215edda2009-09-08 18:59:05 +01002180 const char *control = route->control;
Jarkko Nikulaead9b912010-11-13 20:40:44 +02002181 const char *source;
2182 char prefixed_sink[80];
2183 char prefixed_source[80];
Richard Purdie2b97eab2006-10-06 18:32:18 +02002184 int ret = 0;
2185
Mark Brown88e8b9a2011-03-02 18:18:24 +00002186 if (dapm->codec && dapm->codec->name_prefix) {
Jarkko Nikulaead9b912010-11-13 20:40:44 +02002187 snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s",
2188 dapm->codec->name_prefix, route->sink);
2189 sink = prefixed_sink;
2190 snprintf(prefixed_source, sizeof(prefixed_source), "%s %s",
2191 dapm->codec->name_prefix, route->source);
2192 source = prefixed_source;
2193 } else {
2194 sink = route->sink;
2195 source = route->source;
2196 }
2197
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002198 /*
2199 * find src and dest widgets over all widgets but favor a widget from
2200 * current DAPM context
2201 */
2202 list_for_each_entry(w, &dapm->card->widgets, list) {
Richard Purdie2b97eab2006-10-06 18:32:18 +02002203 if (!wsink && !(strcmp(w->name, sink))) {
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002204 wtsink = w;
2205 if (w->dapm == dapm)
2206 wsink = w;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002207 continue;
2208 }
2209 if (!wsource && !(strcmp(w->name, source))) {
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002210 wtsource = w;
2211 if (w->dapm == dapm)
2212 wsource = w;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002213 }
2214 }
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002215 /* use widget from another DAPM context if not found from this */
2216 if (!wsink)
2217 wsink = wtsink;
2218 if (!wsource)
2219 wsource = wtsource;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002220
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002221 if (wsource == NULL) {
2222 dev_err(dapm->dev, "ASoC: no source widget found for %s\n",
2223 route->source);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002224 return -ENODEV;
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002225 }
2226 if (wsink == NULL) {
2227 dev_err(dapm->dev, "ASoC: no sink widget found for %s\n",
2228 route->sink);
2229 return -ENODEV;
2230 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02002231
2232 path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL);
2233 if (!path)
2234 return -ENOMEM;
2235
2236 path->source = wsource;
2237 path->sink = wsink;
Mark Brown215edda2009-09-08 18:59:05 +01002238 path->connected = route->connected;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002239 INIT_LIST_HEAD(&path->list);
2240 INIT_LIST_HEAD(&path->list_source);
2241 INIT_LIST_HEAD(&path->list_sink);
2242
2243 /* check for external widgets */
2244 if (wsink->id == snd_soc_dapm_input) {
2245 if (wsource->id == snd_soc_dapm_micbias ||
2246 wsource->id == snd_soc_dapm_mic ||
Rongrong Cao087d53a2009-07-10 20:13:30 +01002247 wsource->id == snd_soc_dapm_line ||
2248 wsource->id == snd_soc_dapm_output)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002249 wsink->ext = 1;
2250 }
2251 if (wsource->id == snd_soc_dapm_output) {
2252 if (wsink->id == snd_soc_dapm_spk ||
2253 wsink->id == snd_soc_dapm_hp ||
Seth Forshee1e392212007-04-16 15:36:42 +02002254 wsink->id == snd_soc_dapm_line ||
2255 wsink->id == snd_soc_dapm_input)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002256 wsource->ext = 1;
2257 }
2258
2259 /* connect static paths */
2260 if (control == NULL) {
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +02002261 list_add(&path->list, &dapm->card->paths);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002262 list_add(&path->list_sink, &wsink->sources);
2263 list_add(&path->list_source, &wsource->sinks);
2264 path->connect = 1;
2265 return 0;
2266 }
2267
2268 /* connect dynamic paths */
Lu Guanqundc2bea62011-04-20 16:00:36 +08002269 switch (wsink->id) {
Richard Purdie2b97eab2006-10-06 18:32:18 +02002270 case snd_soc_dapm_adc:
2271 case snd_soc_dapm_dac:
2272 case snd_soc_dapm_pga:
Olaya, Margaritad88429a2010-12-10 21:11:44 -06002273 case snd_soc_dapm_out_drv:
Richard Purdie2b97eab2006-10-06 18:32:18 +02002274 case snd_soc_dapm_input:
2275 case snd_soc_dapm_output:
Mark Brown1ab97c82011-11-27 16:21:51 +00002276 case snd_soc_dapm_siggen:
Richard Purdie2b97eab2006-10-06 18:32:18 +02002277 case snd_soc_dapm_micbias:
2278 case snd_soc_dapm_vmid:
2279 case snd_soc_dapm_pre:
2280 case snd_soc_dapm_post:
Mark Brown246d0a12009-04-22 18:24:55 +01002281 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +00002282 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +02002283 case snd_soc_dapm_clock_supply:
Mark Brown010ff262009-08-17 17:39:22 +01002284 case snd_soc_dapm_aif_in:
2285 case snd_soc_dapm_aif_out:
Mark Brown888df392012-02-16 19:37:51 -08002286 case snd_soc_dapm_dai:
Mark Brownc74184e2012-04-04 22:12:09 +01002287 case snd_soc_dapm_dai_link:
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +02002288 list_add(&path->list, &dapm->card->paths);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002289 list_add(&path->list_sink, &wsink->sources);
2290 list_add(&path->list_source, &wsource->sinks);
2291 path->connect = 1;
2292 return 0;
2293 case snd_soc_dapm_mux:
Dimitris Papastamos24ff33a2010-12-16 15:53:39 +00002294 case snd_soc_dapm_virt_mux:
Peter Ujfalusi74155552009-01-08 13:34:29 +02002295 case snd_soc_dapm_value_mux:
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002296 ret = dapm_connect_mux(dapm, wsource, wsink, path, control,
Stephen Warren82cfecd2011-04-28 17:37:58 -06002297 &wsink->kcontrol_news[0]);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002298 if (ret != 0)
2299 goto err;
2300 break;
2301 case snd_soc_dapm_switch:
2302 case snd_soc_dapm_mixer:
Ian Moltonca9c1aa2009-01-06 20:11:51 +00002303 case snd_soc_dapm_mixer_named_ctl:
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002304 ret = dapm_connect_mixer(dapm, wsource, wsink, path, control);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002305 if (ret != 0)
2306 goto err;
2307 break;
2308 case snd_soc_dapm_hp:
2309 case snd_soc_dapm_mic:
2310 case snd_soc_dapm_line:
2311 case snd_soc_dapm_spk:
Jarkko Nikula8ddab3f2010-12-14 12:18:30 +02002312 list_add(&path->list, &dapm->card->paths);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002313 list_add(&path->list_sink, &wsink->sources);
2314 list_add(&path->list_source, &wsource->sinks);
2315 path->connect = 0;
2316 return 0;
2317 }
Mark Brownfabd0382012-07-05 17:20:06 +01002318
2319 dapm_mark_dirty(wsource, "Route added");
2320 dapm_mark_dirty(wsink, "Route added");
2321
Richard Purdie2b97eab2006-10-06 18:32:18 +02002322 return 0;
2323
2324err:
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002325 dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n",
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +02002326 source, control, sink);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002327 kfree(path);
2328 return ret;
2329}
Mark Brown105f1c22008-05-13 14:52:19 +02002330
Mark Brownefcc3c62012-07-05 17:24:19 +01002331static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm,
2332 const struct snd_soc_dapm_route *route)
2333{
2334 struct snd_soc_dapm_path *path, *p;
2335 const char *sink;
2336 const char *source;
2337 char prefixed_sink[80];
2338 char prefixed_source[80];
2339
2340 if (route->control) {
2341 dev_err(dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002342 "ASoC: Removal of routes with controls not supported\n");
Mark Brownefcc3c62012-07-05 17:24:19 +01002343 return -EINVAL;
2344 }
2345
2346 if (dapm->codec && dapm->codec->name_prefix) {
2347 snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s",
2348 dapm->codec->name_prefix, route->sink);
2349 sink = prefixed_sink;
2350 snprintf(prefixed_source, sizeof(prefixed_source), "%s %s",
2351 dapm->codec->name_prefix, route->source);
2352 source = prefixed_source;
2353 } else {
2354 sink = route->sink;
2355 source = route->source;
2356 }
2357
2358 path = NULL;
2359 list_for_each_entry(p, &dapm->card->paths, list) {
2360 if (strcmp(p->source->name, source) != 0)
2361 continue;
2362 if (strcmp(p->sink->name, sink) != 0)
2363 continue;
2364 path = p;
2365 break;
2366 }
2367
2368 if (path) {
2369 dapm_mark_dirty(path->source, "Route removed");
2370 dapm_mark_dirty(path->sink, "Route removed");
2371
2372 list_del(&path->list);
2373 list_del(&path->list_sink);
2374 list_del(&path->list_source);
2375 kfree(path);
2376 } else {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002377 dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n",
Mark Brownefcc3c62012-07-05 17:24:19 +01002378 source, sink);
2379 }
2380
2381 return 0;
2382}
2383
Mark Brown105f1c22008-05-13 14:52:19 +02002384/**
Mark Brown105f1c22008-05-13 14:52:19 +02002385 * snd_soc_dapm_add_routes - Add routes between DAPM widgets
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002386 * @dapm: DAPM context
Mark Brown105f1c22008-05-13 14:52:19 +02002387 * @route: audio routes
2388 * @num: number of routes
2389 *
2390 * Connects 2 dapm widgets together via a named audio path. The sink is
2391 * the widget receiving the audio signal, whilst the source is the sender
2392 * of the audio signal.
2393 *
2394 * Returns 0 for success else error. On error all resources can be freed
2395 * with a call to snd_soc_card_free().
2396 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002397int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
Mark Brown105f1c22008-05-13 14:52:19 +02002398 const struct snd_soc_dapm_route *route, int num)
2399{
Mark Brown62d4a4b2012-06-22 12:21:49 +01002400 int i, r, ret = 0;
Mark Brown105f1c22008-05-13 14:52:19 +02002401
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002402 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
Mark Brown105f1c22008-05-13 14:52:19 +02002403 for (i = 0; i < num; i++) {
Mark Brown62d4a4b2012-06-22 12:21:49 +01002404 r = snd_soc_dapm_add_route(dapm, route);
2405 if (r < 0) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002406 dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n",
2407 route->source,
2408 route->control ? route->control : "direct",
2409 route->sink);
Mark Brown62d4a4b2012-06-22 12:21:49 +01002410 ret = r;
Mark Brown105f1c22008-05-13 14:52:19 +02002411 }
2412 route++;
2413 }
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002414 mutex_unlock(&dapm->card->dapm_mutex);
Mark Brown105f1c22008-05-13 14:52:19 +02002415
Dan Carpenter60884c22012-04-13 22:25:43 +03002416 return ret;
Mark Brown105f1c22008-05-13 14:52:19 +02002417}
2418EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes);
2419
Mark Brownefcc3c62012-07-05 17:24:19 +01002420/**
2421 * snd_soc_dapm_del_routes - Remove routes between DAPM widgets
2422 * @dapm: DAPM context
2423 * @route: audio routes
2424 * @num: number of routes
2425 *
2426 * Removes routes from the DAPM context.
2427 */
2428int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
2429 const struct snd_soc_dapm_route *route, int num)
2430{
2431 int i, ret = 0;
2432
2433 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
2434 for (i = 0; i < num; i++) {
2435 snd_soc_dapm_del_route(dapm, route);
2436 route++;
2437 }
2438 mutex_unlock(&dapm->card->dapm_mutex);
2439
2440 return ret;
2441}
2442EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes);
2443
Mark Brownbf3a9e12011-06-13 16:42:29 +01002444static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm,
2445 const struct snd_soc_dapm_route *route)
2446{
2447 struct snd_soc_dapm_widget *source = dapm_find_widget(dapm,
2448 route->source,
2449 true);
2450 struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm,
2451 route->sink,
2452 true);
2453 struct snd_soc_dapm_path *path;
2454 int count = 0;
2455
2456 if (!source) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002457 dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002458 route->source);
2459 return -ENODEV;
2460 }
2461
2462 if (!sink) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002463 dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002464 route->sink);
2465 return -ENODEV;
2466 }
2467
2468 if (route->control || route->connected)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002469 dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002470 route->source, route->sink);
2471
2472 list_for_each_entry(path, &source->sinks, list_source) {
2473 if (path->sink == sink) {
2474 path->weak = 1;
2475 count++;
2476 }
2477 }
2478
2479 if (count == 0)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002480 dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002481 route->source, route->sink);
2482 if (count > 1)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002483 dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n",
Mark Brownbf3a9e12011-06-13 16:42:29 +01002484 count, route->source, route->sink);
2485
2486 return 0;
2487}
2488
2489/**
2490 * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak
2491 * @dapm: DAPM context
2492 * @route: audio routes
2493 * @num: number of routes
2494 *
2495 * Mark existing routes matching those specified in the passed array
2496 * as being weak, meaning that they are ignored for the purpose of
2497 * power decisions. The main intended use case is for sidetone paths
2498 * which couple audio between other independent paths if they are both
2499 * active in order to make the combination work better at the user
2500 * level but which aren't intended to be "used".
2501 *
2502 * Note that CODEC drivers should not use this as sidetone type paths
2503 * can frequently also be used as bypass paths.
2504 */
2505int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm,
2506 const struct snd_soc_dapm_route *route, int num)
2507{
2508 int i, err;
2509 int ret = 0;
2510
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002511 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
Mark Brownbf3a9e12011-06-13 16:42:29 +01002512 for (i = 0; i < num; i++) {
2513 err = snd_soc_dapm_weak_route(dapm, route);
2514 if (err)
2515 ret = err;
2516 route++;
2517 }
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002518 mutex_unlock(&dapm->card->dapm_mutex);
Mark Brownbf3a9e12011-06-13 16:42:29 +01002519
2520 return ret;
2521}
2522EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes);
2523
Mark Brown105f1c22008-05-13 14:52:19 +02002524/**
Richard Purdie2b97eab2006-10-06 18:32:18 +02002525 * snd_soc_dapm_new_widgets - add new dapm widgets
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002526 * @dapm: DAPM context
Richard Purdie2b97eab2006-10-06 18:32:18 +02002527 *
2528 * Checks the codec for any new dapm widgets and creates them if found.
2529 *
2530 * Returns 0 for success.
2531 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002532int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002533{
2534 struct snd_soc_dapm_widget *w;
Mark Brownb66a70d2011-02-09 18:04:11 +00002535 unsigned int val;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002536
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002537 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
2538
Jarkko Nikula97c866d2010-12-14 12:18:31 +02002539 list_for_each_entry(w, &dapm->card->widgets, list)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002540 {
2541 if (w->new)
2542 continue;
2543
Stephen Warrenfad59882011-04-28 17:37:59 -06002544 if (w->num_kcontrols) {
2545 w->kcontrols = kzalloc(w->num_kcontrols *
2546 sizeof(struct snd_kcontrol *),
2547 GFP_KERNEL);
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002548 if (!w->kcontrols) {
2549 mutex_unlock(&dapm->card->dapm_mutex);
Stephen Warrenfad59882011-04-28 17:37:59 -06002550 return -ENOMEM;
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002551 }
Stephen Warrenfad59882011-04-28 17:37:59 -06002552 }
2553
Richard Purdie2b97eab2006-10-06 18:32:18 +02002554 switch(w->id) {
2555 case snd_soc_dapm_switch:
2556 case snd_soc_dapm_mixer:
Ian Moltonca9c1aa2009-01-06 20:11:51 +00002557 case snd_soc_dapm_mixer_named_ctl:
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +02002558 dapm_new_mixer(w);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002559 break;
2560 case snd_soc_dapm_mux:
Dimitris Papastamos24ff33a2010-12-16 15:53:39 +00002561 case snd_soc_dapm_virt_mux:
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002562 case snd_soc_dapm_value_mux:
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +02002563 dapm_new_mux(w);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002564 break;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002565 case snd_soc_dapm_pga:
Olaya, Margaritad88429a2010-12-10 21:11:44 -06002566 case snd_soc_dapm_out_drv:
Lars-Peter Clausen4b80b8c2011-06-09 13:22:36 +02002567 dapm_new_pga(w);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002568 break;
Mark Brown7ca3a182011-10-08 14:04:50 +01002569 default:
Richard Purdie2b97eab2006-10-06 18:32:18 +02002570 break;
2571 }
Mark Brownb66a70d2011-02-09 18:04:11 +00002572
2573 /* Read the initial power state from the device */
2574 if (w->reg >= 0) {
Liam Girdwood0445bdf2011-06-13 19:37:36 +01002575 val = soc_widget_read(w, w->reg);
Mark Brownb66a70d2011-02-09 18:04:11 +00002576 val &= 1 << w->shift;
2577 if (w->invert)
2578 val = !val;
2579
2580 if (val)
2581 w->power = 1;
2582 }
2583
Richard Purdie2b97eab2006-10-06 18:32:18 +02002584 w->new = 1;
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02002585
Mark Brown7508b122011-10-05 12:09:12 +01002586 dapm_mark_dirty(w, "new widget");
Lars-Peter Clausend5d1e0b2011-04-30 19:45:49 +02002587 dapm_debugfs_add_widget(w);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002588 }
2589
Liam Girdwoodce6120c2010-11-05 15:53:46 +02002590 dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP);
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002591 mutex_unlock(&dapm->card->dapm_mutex);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002592 return 0;
2593}
2594EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets);
2595
2596/**
2597 * snd_soc_dapm_get_volsw - dapm mixer get callback
2598 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002599 * @ucontrol: control element information
Richard Purdie2b97eab2006-10-06 18:32:18 +02002600 *
2601 * Callback to get the value of a dapm mixer control.
2602 *
2603 * Returns 0 for success.
2604 */
2605int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
2606 struct snd_ctl_elem_value *ucontrol)
2607{
Stephen Warrenfafd2172011-04-28 17:38:00 -06002608 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
2609 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
Jon Smirl4eaa9812008-07-29 11:42:26 +01002610 struct soc_mixer_control *mc =
2611 (struct soc_mixer_control *)kcontrol->private_value;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002612 unsigned int reg = mc->reg;
2613 unsigned int shift = mc->shift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002614 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002615 unsigned int mask = (1 << fls(max)) - 1;
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002616 unsigned int invert = mc->invert;
2617
2618 if (snd_soc_volsw_is_stereo(mc))
2619 dev_warn(widget->dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002620 "ASoC: Control '%s' is stereo, which is not supported\n",
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002621 kcontrol->id.name);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002622
Richard Purdie2b97eab2006-10-06 18:32:18 +02002623 ucontrol->value.integer.value[0] =
2624 (snd_soc_read(widget->codec, reg) >> shift) & mask;
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002625 if (invert)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002626 ucontrol->value.integer.value[0] =
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002627 max - ucontrol->value.integer.value[0];
Richard Purdie2b97eab2006-10-06 18:32:18 +02002628
2629 return 0;
2630}
2631EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw);
2632
2633/**
2634 * snd_soc_dapm_put_volsw - dapm mixer set callback
2635 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002636 * @ucontrol: control element information
Richard Purdie2b97eab2006-10-06 18:32:18 +02002637 *
2638 * Callback to set the value of a dapm mixer control.
2639 *
2640 * Returns 0 for success.
2641 */
2642int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
2643 struct snd_ctl_elem_value *ucontrol)
2644{
Stephen Warrenfafd2172011-04-28 17:38:00 -06002645 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
2646 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
2647 struct snd_soc_codec *codec = widget->codec;
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002648 struct snd_soc_card *card = codec->card;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002649 struct soc_mixer_control *mc =
2650 (struct soc_mixer_control *)kcontrol->private_value;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002651 unsigned int reg = mc->reg;
2652 unsigned int shift = mc->shift;
Jon Smirl4eaa9812008-07-29 11:42:26 +01002653 int max = mc->max;
Jon Smirl815ecf8d2008-07-29 10:22:24 -04002654 unsigned int mask = (1 << fls(max)) - 1;
2655 unsigned int invert = mc->invert;
Stephen Warrene9cf7042011-01-27 14:54:05 -07002656 unsigned int val;
Mark Brown97404f22010-12-14 16:13:57 +00002657 int connect, change;
2658 struct snd_soc_dapm_update update;
Stephen Warrenfafd2172011-04-28 17:38:00 -06002659 int wi;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002660
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002661 if (snd_soc_volsw_is_stereo(mc))
2662 dev_warn(widget->dapm->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00002663 "ASoC: Control '%s' is stereo, which is not supported\n",
Benoît Thébaudeauda602ab2012-07-03 20:18:17 +02002664 kcontrol->id.name);
2665
Richard Purdie2b97eab2006-10-06 18:32:18 +02002666 val = (ucontrol->value.integer.value[0] & mask);
Benoît Thébaudeau8a720712012-06-18 22:41:28 +02002667 connect = !!val;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002668
2669 if (invert)
Philipp Zabela7a4ac82008-01-10 14:37:42 +01002670 val = max - val;
Stephen Warrene9cf7042011-01-27 14:54:05 -07002671 mask = mask << shift;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002672 val = val << shift;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002673
Liam Girdwood3cd04342012-03-09 12:02:08 +00002674 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Richard Purdie2b97eab2006-10-06 18:32:18 +02002675
Stephen Warrene9cf7042011-01-27 14:54:05 -07002676 change = snd_soc_test_bits(widget->codec, reg, mask, val);
Mark Brown97404f22010-12-14 16:13:57 +00002677 if (change) {
Stephen Warrenfafd2172011-04-28 17:38:00 -06002678 for (wi = 0; wi < wlist->num_widgets; wi++) {
2679 widget = wlist->widgets[wi];
Mark Brown283375c2009-12-07 18:09:03 +00002680
Stephen Warrenfafd2172011-04-28 17:38:00 -06002681 widget->value = val;
Mark Brown97404f22010-12-14 16:13:57 +00002682
Stephen Warrenfafd2172011-04-28 17:38:00 -06002683 update.kcontrol = kcontrol;
2684 update.widget = widget;
2685 update.reg = reg;
2686 update.mask = mask;
2687 update.val = val;
2688 widget->dapm->update = &update;
Mark Brown97404f22010-12-14 16:13:57 +00002689
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002690 soc_dapm_mixer_update_power(widget, kcontrol, connect);
Stephen Warrenfafd2172011-04-28 17:38:00 -06002691
2692 widget->dapm->update = NULL;
2693 }
Mark Brown283375c2009-12-07 18:09:03 +00002694 }
2695
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002696 mutex_unlock(&card->dapm_mutex);
Mark Brown97404f22010-12-14 16:13:57 +00002697 return 0;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002698}
2699EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw);
2700
2701/**
2702 * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback
2703 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002704 * @ucontrol: control element information
Richard Purdie2b97eab2006-10-06 18:32:18 +02002705 *
2706 * Callback to get the value of a dapm enumerated double mixer control.
2707 *
2708 * Returns 0 for success.
2709 */
2710int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol,
2711 struct snd_ctl_elem_value *ucontrol)
2712{
Stephen Warrenfafd2172011-04-28 17:38:00 -06002713 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
2714 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
Richard Purdie2b97eab2006-10-06 18:32:18 +02002715 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002716 unsigned int val;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002717
Richard Purdie2b97eab2006-10-06 18:32:18 +02002718 val = snd_soc_read(widget->codec, e->reg);
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002719 ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & e->mask;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002720 if (e->shift_l != e->shift_r)
2721 ucontrol->value.enumerated.item[1] =
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002722 (val >> e->shift_r) & e->mask;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002723
2724 return 0;
2725}
2726EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double);
2727
2728/**
2729 * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback
2730 * @kcontrol: mixer control
Mark Brownac11a2b2009-01-01 12:18:17 +00002731 * @ucontrol: control element information
Richard Purdie2b97eab2006-10-06 18:32:18 +02002732 *
2733 * Callback to set the value of a dapm enumerated double mixer control.
2734 *
2735 * Returns 0 for success.
2736 */
2737int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
2738 struct snd_ctl_elem_value *ucontrol)
2739{
Stephen Warrenfafd2172011-04-28 17:38:00 -06002740 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
2741 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
2742 struct snd_soc_codec *codec = widget->codec;
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002743 struct snd_soc_card *card = codec->card;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002744 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Mark Brown3a655772009-10-05 17:23:30 +01002745 unsigned int val, mux, change;
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002746 unsigned int mask;
Mark Brown97404f22010-12-14 16:13:57 +00002747 struct snd_soc_dapm_update update;
Stephen Warrenfafd2172011-04-28 17:38:00 -06002748 int wi;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002749
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002750 if (ucontrol->value.enumerated.item[0] > e->max - 1)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002751 return -EINVAL;
2752 mux = ucontrol->value.enumerated.item[0];
2753 val = mux << e->shift_l;
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002754 mask = e->mask << e->shift_l;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002755 if (e->shift_l != e->shift_r) {
Jon Smirlf8ba0b72008-07-29 11:42:27 +01002756 if (ucontrol->value.enumerated.item[1] > e->max - 1)
Richard Purdie2b97eab2006-10-06 18:32:18 +02002757 return -EINVAL;
2758 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
Lars-Peter Clausen86767b72012-09-14 13:57:27 +02002759 mask |= e->mask << e->shift_r;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002760 }
2761
Liam Girdwood3cd04342012-03-09 12:02:08 +00002762 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Stephen Warrenfafd2172011-04-28 17:38:00 -06002763
Mark Brown3a655772009-10-05 17:23:30 +01002764 change = snd_soc_test_bits(widget->codec, e->reg, mask, val);
Stephen Warrenfafd2172011-04-28 17:38:00 -06002765 if (change) {
2766 for (wi = 0; wi < wlist->num_widgets; wi++) {
2767 widget = wlist->widgets[wi];
Mark Brown97404f22010-12-14 16:13:57 +00002768
Stephen Warrenfafd2172011-04-28 17:38:00 -06002769 widget->value = val;
Mark Brown97404f22010-12-14 16:13:57 +00002770
Stephen Warrenfafd2172011-04-28 17:38:00 -06002771 update.kcontrol = kcontrol;
2772 update.widget = widget;
2773 update.reg = e->reg;
2774 update.mask = mask;
2775 update.val = val;
2776 widget->dapm->update = &update;
Mark Brown1642e3d2009-10-05 16:24:26 +01002777
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002778 soc_dapm_mux_update_power(widget, kcontrol, mux, e);
Mark Brown1642e3d2009-10-05 16:24:26 +01002779
Stephen Warrenfafd2172011-04-28 17:38:00 -06002780 widget->dapm->update = NULL;
2781 }
2782 }
2783
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002784 mutex_unlock(&card->dapm_mutex);
Mark Brown97404f22010-12-14 16:13:57 +00002785 return change;
Richard Purdie2b97eab2006-10-06 18:32:18 +02002786}
2787EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double);
2788
2789/**
Mark Brownd2b247a2009-10-06 15:21:04 +01002790 * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux
2791 * @kcontrol: mixer control
2792 * @ucontrol: control element information
2793 *
2794 * Returns 0 for success.
2795 */
2796int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol,
2797 struct snd_ctl_elem_value *ucontrol)
2798{
Stephen Warrenfafd2172011-04-28 17:38:00 -06002799 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
2800 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
Mark Brownd2b247a2009-10-06 15:21:04 +01002801
2802 ucontrol->value.enumerated.item[0] = widget->value;
2803
2804 return 0;
2805}
2806EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt);
2807
2808/**
2809 * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux
2810 * @kcontrol: mixer control
2811 * @ucontrol: control element information
2812 *
2813 * Returns 0 for success.
2814 */
2815int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol,
2816 struct snd_ctl_elem_value *ucontrol)
2817{
Stephen Warrenfafd2172011-04-28 17:38:00 -06002818 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
2819 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
2820 struct snd_soc_codec *codec = widget->codec;
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002821 struct snd_soc_card *card = codec->card;
Mark Brownd2b247a2009-10-06 15:21:04 +01002822 struct soc_enum *e =
2823 (struct soc_enum *)kcontrol->private_value;
2824 int change;
2825 int ret = 0;
Stephen Warrenfafd2172011-04-28 17:38:00 -06002826 int wi;
Mark Brownd2b247a2009-10-06 15:21:04 +01002827
2828 if (ucontrol->value.enumerated.item[0] >= e->max)
2829 return -EINVAL;
2830
Liam Girdwood3cd04342012-03-09 12:02:08 +00002831 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Mark Brownd2b247a2009-10-06 15:21:04 +01002832
2833 change = widget->value != ucontrol->value.enumerated.item[0];
Stephen Warrenfafd2172011-04-28 17:38:00 -06002834 if (change) {
2835 for (wi = 0; wi < wlist->num_widgets; wi++) {
2836 widget = wlist->widgets[wi];
Mark Brownd2b247a2009-10-06 15:21:04 +01002837
Stephen Warrenfafd2172011-04-28 17:38:00 -06002838 widget->value = ucontrol->value.enumerated.item[0];
2839
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002840 soc_dapm_mux_update_power(widget, kcontrol, widget->value, e);
Stephen Warrenfafd2172011-04-28 17:38:00 -06002841 }
2842 }
2843
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002844 mutex_unlock(&card->dapm_mutex);
Mark Brownd2b247a2009-10-06 15:21:04 +01002845 return ret;
2846}
2847EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt);
2848
2849/**
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002850 * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get
2851 * callback
2852 * @kcontrol: mixer control
2853 * @ucontrol: control element information
2854 *
2855 * Callback to get the value of a dapm semi enumerated double mixer control.
2856 *
2857 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2858 * used for handling bitfield coded enumeration for example.
2859 *
2860 * Returns 0 for success.
2861 */
2862int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
2863 struct snd_ctl_elem_value *ucontrol)
2864{
Stephen Warrenfafd2172011-04-28 17:38:00 -06002865 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
2866 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
Peter Ujfalusi74155552009-01-08 13:34:29 +02002867 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002868 unsigned int reg_val, val, mux;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002869
2870 reg_val = snd_soc_read(widget->codec, e->reg);
2871 val = (reg_val >> e->shift_l) & e->mask;
2872 for (mux = 0; mux < e->max; mux++) {
2873 if (val == e->values[mux])
2874 break;
2875 }
2876 ucontrol->value.enumerated.item[0] = mux;
2877 if (e->shift_l != e->shift_r) {
2878 val = (reg_val >> e->shift_r) & e->mask;
2879 for (mux = 0; mux < e->max; mux++) {
2880 if (val == e->values[mux])
2881 break;
2882 }
2883 ucontrol->value.enumerated.item[1] = mux;
2884 }
2885
2886 return 0;
2887}
2888EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double);
2889
2890/**
2891 * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set
2892 * callback
2893 * @kcontrol: mixer control
2894 * @ucontrol: control element information
2895 *
2896 * Callback to set the value of a dapm semi enumerated double mixer control.
2897 *
2898 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2899 * used for handling bitfield coded enumeration for example.
2900 *
2901 * Returns 0 for success.
2902 */
2903int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
2904 struct snd_ctl_elem_value *ucontrol)
2905{
Stephen Warrenfafd2172011-04-28 17:38:00 -06002906 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
2907 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
2908 struct snd_soc_codec *codec = widget->codec;
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002909 struct snd_soc_card *card = codec->card;
Peter Ujfalusi74155552009-01-08 13:34:29 +02002910 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
Mark Brown3a655772009-10-05 17:23:30 +01002911 unsigned int val, mux, change;
Daniel Ribeiro46f58222009-06-07 02:49:11 -03002912 unsigned int mask;
Mark Brown97404f22010-12-14 16:13:57 +00002913 struct snd_soc_dapm_update update;
Stephen Warrenfafd2172011-04-28 17:38:00 -06002914 int wi;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002915
2916 if (ucontrol->value.enumerated.item[0] > e->max - 1)
2917 return -EINVAL;
2918 mux = ucontrol->value.enumerated.item[0];
2919 val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
2920 mask = e->mask << e->shift_l;
2921 if (e->shift_l != e->shift_r) {
2922 if (ucontrol->value.enumerated.item[1] > e->max - 1)
2923 return -EINVAL;
2924 val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
2925 mask |= e->mask << e->shift_r;
2926 }
2927
Liam Girdwood3cd04342012-03-09 12:02:08 +00002928 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Stephen Warrenfafd2172011-04-28 17:38:00 -06002929
Mark Brown3a655772009-10-05 17:23:30 +01002930 change = snd_soc_test_bits(widget->codec, e->reg, mask, val);
Stephen Warrenfafd2172011-04-28 17:38:00 -06002931 if (change) {
2932 for (wi = 0; wi < wlist->num_widgets; wi++) {
2933 widget = wlist->widgets[wi];
Mark Brown97404f22010-12-14 16:13:57 +00002934
Stephen Warrenfafd2172011-04-28 17:38:00 -06002935 widget->value = val;
Mark Brown97404f22010-12-14 16:13:57 +00002936
Stephen Warrenfafd2172011-04-28 17:38:00 -06002937 update.kcontrol = kcontrol;
2938 update.widget = widget;
2939 update.reg = e->reg;
2940 update.mask = mask;
2941 update.val = val;
2942 widget->dapm->update = &update;
Mark Brown1642e3d2009-10-05 16:24:26 +01002943
Liam Girdwood4edbb3452012-03-07 10:38:27 +00002944 soc_dapm_mux_update_power(widget, kcontrol, mux, e);
Mark Brown1642e3d2009-10-05 16:24:26 +01002945
Stephen Warrenfafd2172011-04-28 17:38:00 -06002946 widget->dapm->update = NULL;
2947 }
2948 }
2949
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002950 mutex_unlock(&card->dapm_mutex);
Mark Brown97404f22010-12-14 16:13:57 +00002951 return change;
Peter Ujfalusi2e72f8e2009-01-05 09:54:57 +02002952}
2953EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double);
2954
2955/**
Mark Brown8b37dbd2009-02-28 21:14:20 +00002956 * snd_soc_dapm_info_pin_switch - Info for a pin switch
2957 *
2958 * @kcontrol: mixer control
2959 * @uinfo: control element information
2960 *
2961 * Callback to provide information about a pin switch control.
2962 */
2963int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
2964 struct snd_ctl_elem_info *uinfo)
2965{
2966 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2967 uinfo->count = 1;
2968 uinfo->value.integer.min = 0;
2969 uinfo->value.integer.max = 1;
2970
2971 return 0;
2972}
2973EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch);
2974
2975/**
2976 * snd_soc_dapm_get_pin_switch - Get information for a pin switch
2977 *
2978 * @kcontrol: mixer control
2979 * @ucontrol: Value
2980 */
2981int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
2982 struct snd_ctl_elem_value *ucontrol)
2983{
Mark Brown48a8c392012-02-14 17:11:15 -08002984 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
Mark Brown8b37dbd2009-02-28 21:14:20 +00002985 const char *pin = (const char *)kcontrol->private_value;
2986
Liam Girdwood3cd04342012-03-09 12:02:08 +00002987 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Mark Brown8b37dbd2009-02-28 21:14:20 +00002988
2989 ucontrol->value.integer.value[0] =
Mark Brown48a8c392012-02-14 17:11:15 -08002990 snd_soc_dapm_get_pin_status(&card->dapm, pin);
Mark Brown8b37dbd2009-02-28 21:14:20 +00002991
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00002992 mutex_unlock(&card->dapm_mutex);
Mark Brown8b37dbd2009-02-28 21:14:20 +00002993
2994 return 0;
2995}
2996EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch);
2997
2998/**
2999 * snd_soc_dapm_put_pin_switch - Set information for a pin switch
3000 *
3001 * @kcontrol: mixer control
3002 * @ucontrol: Value
3003 */
3004int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
3005 struct snd_ctl_elem_value *ucontrol)
3006{
Mark Brown48a8c392012-02-14 17:11:15 -08003007 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003008 const char *pin = (const char *)kcontrol->private_value;
3009
Liam Girdwood3cd04342012-03-09 12:02:08 +00003010 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003011
3012 if (ucontrol->value.integer.value[0])
Mark Brown48a8c392012-02-14 17:11:15 -08003013 snd_soc_dapm_enable_pin(&card->dapm, pin);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003014 else
Mark Brown48a8c392012-02-14 17:11:15 -08003015 snd_soc_dapm_disable_pin(&card->dapm, pin);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003016
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00003017 mutex_unlock(&card->dapm_mutex);
3018
Mark Brown48a8c392012-02-14 17:11:15 -08003019 snd_soc_dapm_sync(&card->dapm);
Mark Brown8b37dbd2009-02-28 21:14:20 +00003020 return 0;
3021}
3022EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
3023
Mark Brown5ba06fc2012-02-16 11:07:13 -08003024static struct snd_soc_dapm_widget *
3025snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
3026 const struct snd_soc_dapm_widget *widget)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003027{
3028 struct snd_soc_dapm_widget *w;
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003029 size_t name_len;
Mark Brown62ea8742012-01-21 21:14:48 +00003030 int ret;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003031
3032 if ((w = dapm_cnew_widget(widget)) == NULL)
Mark Brown5ba06fc2012-02-16 11:07:13 -08003033 return NULL;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003034
Mark Brown62ea8742012-01-21 21:14:48 +00003035 switch (w->id) {
3036 case snd_soc_dapm_regulator_supply:
Liam Girdwooda3cc0562012-03-09 17:20:16 +00003037 w->regulator = devm_regulator_get(dapm->dev, w->name);
3038 if (IS_ERR(w->regulator)) {
3039 ret = PTR_ERR(w->regulator);
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003040 dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n",
Mark Brown62ea8742012-01-21 21:14:48 +00003041 w->name, ret);
Mark Brown5ba06fc2012-02-16 11:07:13 -08003042 return NULL;
Mark Brown62ea8742012-01-21 21:14:48 +00003043 }
Mark Brown8784c772013-01-10 19:33:47 +00003044
3045 if (w->invert & SND_SOC_DAPM_REGULATOR_BYPASS) {
3046 ret = regulator_allow_bypass(w->regulator, true);
3047 if (ret != 0)
3048 dev_warn(w->dapm->dev,
3049 "ASoC: Failed to unbypass %s: %d\n",
3050 w->name, ret);
3051 }
Mark Brown62ea8742012-01-21 21:14:48 +00003052 break;
Ola Liljad7e7eb92012-05-24 15:26:25 +02003053 case snd_soc_dapm_clock_supply:
Mark Brown165961e2012-06-05 10:44:23 +01003054#ifdef CONFIG_CLKDEV_LOOKUP
Mark Brown695594f12012-06-04 08:14:13 +01003055 w->clk = devm_clk_get(dapm->dev, w->name);
Ola Liljad7e7eb92012-05-24 15:26:25 +02003056 if (IS_ERR(w->clk)) {
3057 ret = PTR_ERR(w->clk);
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003058 dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n",
Ola Liljad7e7eb92012-05-24 15:26:25 +02003059 w->name, ret);
3060 return NULL;
3061 }
Mark Brownec029952012-06-04 08:16:20 +01003062#else
3063 return NULL;
3064#endif
Ola Liljad7e7eb92012-05-24 15:26:25 +02003065 break;
Mark Brown62ea8742012-01-21 21:14:48 +00003066 default:
3067 break;
3068 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02003069
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003070 name_len = strlen(widget->name) + 1;
Mark Brown88e8b9a2011-03-02 18:18:24 +00003071 if (dapm->codec && dapm->codec->name_prefix)
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003072 name_len += 1 + strlen(dapm->codec->name_prefix);
3073 w->name = kmalloc(name_len, GFP_KERNEL);
3074 if (w->name == NULL) {
3075 kfree(w);
Mark Brown5ba06fc2012-02-16 11:07:13 -08003076 return NULL;
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003077 }
Mark Brown88e8b9a2011-03-02 18:18:24 +00003078 if (dapm->codec && dapm->codec->name_prefix)
Mark Brown888df392012-02-16 19:37:51 -08003079 snprintf((char *)w->name, name_len, "%s %s",
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003080 dapm->codec->name_prefix, widget->name);
3081 else
Mark Brown888df392012-02-16 19:37:51 -08003082 snprintf((char *)w->name, name_len, "%s", widget->name);
Jarkko Nikulaead9b912010-11-13 20:40:44 +02003083
Mark Brown7ca3a182011-10-08 14:04:50 +01003084 switch (w->id) {
3085 case snd_soc_dapm_switch:
3086 case snd_soc_dapm_mixer:
3087 case snd_soc_dapm_mixer_named_ctl:
3088 w->power_check = dapm_generic_check_power;
3089 break;
3090 case snd_soc_dapm_mux:
3091 case snd_soc_dapm_virt_mux:
3092 case snd_soc_dapm_value_mux:
3093 w->power_check = dapm_generic_check_power;
3094 break;
3095 case snd_soc_dapm_adc:
3096 case snd_soc_dapm_aif_out:
3097 w->power_check = dapm_adc_check_power;
3098 break;
3099 case snd_soc_dapm_dac:
3100 case snd_soc_dapm_aif_in:
3101 w->power_check = dapm_dac_check_power;
3102 break;
3103 case snd_soc_dapm_pga:
3104 case snd_soc_dapm_out_drv:
3105 case snd_soc_dapm_input:
3106 case snd_soc_dapm_output:
3107 case snd_soc_dapm_micbias:
3108 case snd_soc_dapm_spk:
3109 case snd_soc_dapm_hp:
3110 case snd_soc_dapm_mic:
3111 case snd_soc_dapm_line:
Mark Brownc74184e2012-04-04 22:12:09 +01003112 case snd_soc_dapm_dai_link:
Mark Brown7ca3a182011-10-08 14:04:50 +01003113 w->power_check = dapm_generic_check_power;
3114 break;
3115 case snd_soc_dapm_supply:
Mark Brown62ea8742012-01-21 21:14:48 +00003116 case snd_soc_dapm_regulator_supply:
Ola Liljad7e7eb92012-05-24 15:26:25 +02003117 case snd_soc_dapm_clock_supply:
Mark Brown7ca3a182011-10-08 14:04:50 +01003118 w->power_check = dapm_supply_check_power;
3119 break;
Mark Brown888df392012-02-16 19:37:51 -08003120 case snd_soc_dapm_dai:
3121 w->power_check = dapm_dai_check_power;
3122 break;
Mark Brown7ca3a182011-10-08 14:04:50 +01003123 default:
3124 w->power_check = dapm_always_on_check_power;
3125 break;
3126 }
3127
Jarkko Nikula97c866d2010-12-14 12:18:31 +02003128 dapm->n_widgets++;
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003129 w->dapm = dapm;
3130 w->codec = dapm->codec;
Liam Girdwoodb7950642011-07-04 22:10:52 +01003131 w->platform = dapm->platform;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003132 INIT_LIST_HEAD(&w->sources);
3133 INIT_LIST_HEAD(&w->sinks);
3134 INIT_LIST_HEAD(&w->list);
Mark Browndb432b42011-10-03 21:06:40 +01003135 INIT_LIST_HEAD(&w->dirty);
Jarkko Nikula97c866d2010-12-14 12:18:31 +02003136 list_add(&w->list, &dapm->card->widgets);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003137
3138 /* machine layer set ups unconnected pins and insertions */
3139 w->connected = 1;
Mark Brown5ba06fc2012-02-16 11:07:13 -08003140 return w;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003141}
Richard Purdie2b97eab2006-10-06 18:32:18 +02003142
3143/**
Mark Brown4ba13272008-05-13 14:51:19 +02003144 * snd_soc_dapm_new_controls - create new dapm controls
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003145 * @dapm: DAPM context
Mark Brown4ba13272008-05-13 14:51:19 +02003146 * @widget: widget array
3147 * @num: number of widgets
3148 *
3149 * Creates new DAPM controls based upon the templates.
3150 *
3151 * Returns 0 for success else error.
3152 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003153int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
Mark Brown4ba13272008-05-13 14:51:19 +02003154 const struct snd_soc_dapm_widget *widget,
3155 int num)
3156{
Mark Brown5ba06fc2012-02-16 11:07:13 -08003157 struct snd_soc_dapm_widget *w;
3158 int i;
Dan Carpenter60884c22012-04-13 22:25:43 +03003159 int ret = 0;
Mark Brown4ba13272008-05-13 14:51:19 +02003160
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00003161 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
Mark Brown4ba13272008-05-13 14:51:19 +02003162 for (i = 0; i < num; i++) {
Mark Brown5ba06fc2012-02-16 11:07:13 -08003163 w = snd_soc_dapm_new_control(dapm, widget);
3164 if (!w) {
Jarkko Nikulaf7d41ae2010-11-09 14:40:27 +02003165 dev_err(dapm->dev,
Mark Brown5ba06fc2012-02-16 11:07:13 -08003166 "ASoC: Failed to create DAPM control %s\n",
3167 widget->name);
Dan Carpenter60884c22012-04-13 22:25:43 +03003168 ret = -ENOMEM;
3169 break;
Mark Brownb8b33cb2008-12-18 11:19:30 +00003170 }
Mark Brown4ba13272008-05-13 14:51:19 +02003171 widget++;
3172 }
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00003173 mutex_unlock(&dapm->card->dapm_mutex);
Dan Carpenter60884c22012-04-13 22:25:43 +03003174 return ret;
Mark Brown4ba13272008-05-13 14:51:19 +02003175}
3176EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls);
3177
Mark Brownc74184e2012-04-04 22:12:09 +01003178static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
3179 struct snd_kcontrol *kcontrol, int event)
3180{
3181 struct snd_soc_dapm_path *source_p, *sink_p;
3182 struct snd_soc_dai *source, *sink;
3183 const struct snd_soc_pcm_stream *config = w->params;
3184 struct snd_pcm_substream substream;
Mark Brown9747cec2012-04-26 19:12:21 +01003185 struct snd_pcm_hw_params *params = NULL;
Mark Brownc74184e2012-04-04 22:12:09 +01003186 u64 fmt;
3187 int ret;
3188
3189 BUG_ON(!config);
3190 BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks));
3191
3192 /* We only support a single source and sink, pick the first */
3193 source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path,
3194 list_sink);
3195 sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path,
3196 list_source);
3197
3198 BUG_ON(!source_p || !sink_p);
3199 BUG_ON(!sink_p->source || !source_p->sink);
3200 BUG_ON(!source_p->source || !sink_p->sink);
3201
3202 source = source_p->source->priv;
3203 sink = sink_p->sink->priv;
3204
3205 /* Be a little careful as we don't want to overflow the mask array */
3206 if (config->formats) {
3207 fmt = ffs(config->formats) - 1;
3208 } else {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003209 dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n",
Mark Brownc74184e2012-04-04 22:12:09 +01003210 config->formats);
3211 fmt = 0;
3212 }
3213
3214 /* Currently very limited parameter selection */
Mark Brown9747cec2012-04-26 19:12:21 +01003215 params = kzalloc(sizeof(*params), GFP_KERNEL);
3216 if (!params) {
3217 ret = -ENOMEM;
3218 goto out;
3219 }
3220 snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt);
Mark Brownc74184e2012-04-04 22:12:09 +01003221
Mark Brown9747cec2012-04-26 19:12:21 +01003222 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min =
Mark Brownc74184e2012-04-04 22:12:09 +01003223 config->rate_min;
Mark Brown9747cec2012-04-26 19:12:21 +01003224 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max =
Mark Brownc74184e2012-04-04 22:12:09 +01003225 config->rate_max;
3226
Mark Brown9747cec2012-04-26 19:12:21 +01003227 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min
Mark Brownc74184e2012-04-04 22:12:09 +01003228 = config->channels_min;
Mark Brown9747cec2012-04-26 19:12:21 +01003229 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max
Mark Brownc74184e2012-04-04 22:12:09 +01003230 = config->channels_max;
3231
3232 memset(&substream, 0, sizeof(substream));
3233
3234 switch (event) {
3235 case SND_SOC_DAPM_PRE_PMU:
3236 if (source->driver->ops && source->driver->ops->hw_params) {
3237 substream.stream = SNDRV_PCM_STREAM_CAPTURE;
3238 ret = source->driver->ops->hw_params(&substream,
Mark Brown9747cec2012-04-26 19:12:21 +01003239 params, source);
Mark Brownc74184e2012-04-04 22:12:09 +01003240 if (ret != 0) {
3241 dev_err(source->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003242 "ASoC: hw_params() failed: %d\n", ret);
Mark Brown9747cec2012-04-26 19:12:21 +01003243 goto out;
Mark Brownc74184e2012-04-04 22:12:09 +01003244 }
3245 }
3246
3247 if (sink->driver->ops && sink->driver->ops->hw_params) {
3248 substream.stream = SNDRV_PCM_STREAM_PLAYBACK;
Mark Brown9747cec2012-04-26 19:12:21 +01003249 ret = sink->driver->ops->hw_params(&substream, params,
Mark Brownc74184e2012-04-04 22:12:09 +01003250 sink);
3251 if (ret != 0) {
3252 dev_err(sink->dev,
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003253 "ASoC: hw_params() failed: %d\n", ret);
Mark Brown9747cec2012-04-26 19:12:21 +01003254 goto out;
Mark Brownc74184e2012-04-04 22:12:09 +01003255 }
3256 }
3257 break;
3258
3259 case SND_SOC_DAPM_POST_PMU:
Mark Brownda183962013-02-06 15:44:07 +00003260 ret = snd_soc_dai_digital_mute(sink, 0,
3261 SNDRV_PCM_STREAM_PLAYBACK);
Mark Brownc74184e2012-04-04 22:12:09 +01003262 if (ret != 0 && ret != -ENOTSUPP)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003263 dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret);
Mark Brown9747cec2012-04-26 19:12:21 +01003264 ret = 0;
Mark Brownc74184e2012-04-04 22:12:09 +01003265 break;
3266
3267 case SND_SOC_DAPM_PRE_PMD:
Mark Brownda183962013-02-06 15:44:07 +00003268 ret = snd_soc_dai_digital_mute(sink, 1,
3269 SNDRV_PCM_STREAM_PLAYBACK);
Mark Brownc74184e2012-04-04 22:12:09 +01003270 if (ret != 0 && ret != -ENOTSUPP)
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003271 dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret);
Mark Brown9747cec2012-04-26 19:12:21 +01003272 ret = 0;
Mark Brownc74184e2012-04-04 22:12:09 +01003273 break;
3274
3275 default:
3276 BUG();
3277 return -EINVAL;
3278 }
3279
Mark Brown9747cec2012-04-26 19:12:21 +01003280out:
3281 kfree(params);
3282 return ret;
Mark Brownc74184e2012-04-04 22:12:09 +01003283}
3284
3285int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
3286 const struct snd_soc_pcm_stream *params,
3287 struct snd_soc_dapm_widget *source,
3288 struct snd_soc_dapm_widget *sink)
3289{
3290 struct snd_soc_dapm_route routes[2];
3291 struct snd_soc_dapm_widget template;
3292 struct snd_soc_dapm_widget *w;
3293 size_t len;
3294 char *link_name;
3295
3296 len = strlen(source->name) + strlen(sink->name) + 2;
3297 link_name = devm_kzalloc(card->dev, len, GFP_KERNEL);
3298 if (!link_name)
3299 return -ENOMEM;
3300 snprintf(link_name, len, "%s-%s", source->name, sink->name);
3301
3302 memset(&template, 0, sizeof(template));
3303 template.reg = SND_SOC_NOPM;
3304 template.id = snd_soc_dapm_dai_link;
3305 template.name = link_name;
3306 template.event = snd_soc_dai_link_event;
3307 template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
3308 SND_SOC_DAPM_PRE_PMD;
3309
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003310 dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name);
Mark Brownc74184e2012-04-04 22:12:09 +01003311
3312 w = snd_soc_dapm_new_control(&card->dapm, &template);
3313 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003314 dev_err(card->dev, "ASoC: Failed to create %s widget\n",
Mark Brownc74184e2012-04-04 22:12:09 +01003315 link_name);
3316 return -ENOMEM;
3317 }
3318
3319 w->params = params;
3320
3321 memset(&routes, 0, sizeof(routes));
3322
3323 routes[0].source = source->name;
3324 routes[0].sink = link_name;
3325 routes[1].source = link_name;
3326 routes[1].sink = sink->name;
3327
3328 return snd_soc_dapm_add_routes(&card->dapm, routes,
3329 ARRAY_SIZE(routes));
3330}
3331
Mark Brown888df392012-02-16 19:37:51 -08003332int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
3333 struct snd_soc_dai *dai)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003334{
Mark Brown888df392012-02-16 19:37:51 -08003335 struct snd_soc_dapm_widget template;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003336 struct snd_soc_dapm_widget *w;
3337
Mark Brown888df392012-02-16 19:37:51 -08003338 WARN_ON(dapm->dev != dai->dev);
3339
3340 memset(&template, 0, sizeof(template));
3341 template.reg = SND_SOC_NOPM;
3342
3343 if (dai->driver->playback.stream_name) {
3344 template.id = snd_soc_dapm_dai;
3345 template.name = dai->driver->playback.stream_name;
3346 template.sname = dai->driver->playback.stream_name;
3347
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003348 dev_dbg(dai->dev, "ASoC: adding %s widget\n",
Mark Brown888df392012-02-16 19:37:51 -08003349 template.name);
3350
3351 w = snd_soc_dapm_new_control(dapm, &template);
3352 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003353 dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
Mark Brown888df392012-02-16 19:37:51 -08003354 dai->driver->playback.stream_name);
3355 }
3356
3357 w->priv = dai;
3358 dai->playback_widget = w;
3359 }
3360
3361 if (dai->driver->capture.stream_name) {
3362 template.id = snd_soc_dapm_dai;
3363 template.name = dai->driver->capture.stream_name;
3364 template.sname = dai->driver->capture.stream_name;
3365
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003366 dev_dbg(dai->dev, "ASoC: adding %s widget\n",
Mark Brown888df392012-02-16 19:37:51 -08003367 template.name);
3368
3369 w = snd_soc_dapm_new_control(dapm, &template);
3370 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003371 dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
Mark Brown888df392012-02-16 19:37:51 -08003372 dai->driver->capture.stream_name);
3373 }
3374
3375 w->priv = dai;
3376 dai->capture_widget = w;
3377 }
3378
3379 return 0;
3380}
3381
3382int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
3383{
3384 struct snd_soc_dapm_widget *dai_w, *w;
3385 struct snd_soc_dai *dai;
3386 struct snd_soc_dapm_route r;
3387
3388 memset(&r, 0, sizeof(r));
3389
3390 /* For each DAI widget... */
3391 list_for_each_entry(dai_w, &card->widgets, list) {
3392 if (dai_w->id != snd_soc_dapm_dai)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003393 continue;
Mark Brown888df392012-02-16 19:37:51 -08003394
3395 dai = dai_w->priv;
3396
3397 /* ...find all widgets with the same stream and link them */
3398 list_for_each_entry(w, &card->widgets, list) {
3399 if (w->dapm != dai_w->dapm)
3400 continue;
3401
3402 if (w->id == snd_soc_dapm_dai)
3403 continue;
3404
3405 if (!w->sname)
3406 continue;
3407
3408 if (dai->driver->playback.stream_name &&
3409 strstr(w->sname,
3410 dai->driver->playback.stream_name)) {
3411 r.source = dai->playback_widget->name;
3412 r.sink = w->name;
3413 dev_dbg(dai->dev, "%s -> %s\n",
3414 r.source, r.sink);
3415
3416 snd_soc_dapm_add_route(w->dapm, &r);
3417 }
3418
3419 if (dai->driver->capture.stream_name &&
3420 strstr(w->sname,
3421 dai->driver->capture.stream_name)) {
3422 r.source = w->name;
3423 r.sink = dai->capture_widget->name;
3424 dev_dbg(dai->dev, "%s -> %s\n",
3425 r.source, r.sink);
3426
3427 snd_soc_dapm_add_route(w->dapm, &r);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003428 }
3429 }
3430 }
Richard Purdie2b97eab2006-10-06 18:32:18 +02003431
Mark Brown888df392012-02-16 19:37:51 -08003432 return 0;
3433}
Liam Girdwood64a648c2011-07-25 11:15:15 +01003434
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003435static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
3436 int event)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003437{
Mark Brown7bd3a6f2012-02-16 15:03:27 -08003438
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003439 struct snd_soc_dapm_widget *w_cpu, *w_codec;
3440 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
3441 struct snd_soc_dai *codec_dai = rtd->codec_dai;
Mark Brown7bd3a6f2012-02-16 15:03:27 -08003442
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003443 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
3444 w_cpu = cpu_dai->playback_widget;
3445 w_codec = codec_dai->playback_widget;
3446 } else {
3447 w_cpu = cpu_dai->capture_widget;
3448 w_codec = codec_dai->capture_widget;
Richard Purdie2b97eab2006-10-06 18:32:18 +02003449 }
3450
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003451 if (w_cpu) {
3452
3453 dapm_mark_dirty(w_cpu, "stream event");
3454
3455 switch (event) {
3456 case SND_SOC_DAPM_STREAM_START:
3457 w_cpu->active = 1;
3458 break;
3459 case SND_SOC_DAPM_STREAM_STOP:
3460 w_cpu->active = 0;
3461 break;
3462 case SND_SOC_DAPM_STREAM_SUSPEND:
3463 case SND_SOC_DAPM_STREAM_RESUME:
3464 case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
3465 case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
3466 break;
3467 }
3468 }
3469
3470 if (w_codec) {
3471
3472 dapm_mark_dirty(w_codec, "stream event");
3473
3474 switch (event) {
3475 case SND_SOC_DAPM_STREAM_START:
3476 w_codec->active = 1;
3477 break;
3478 case SND_SOC_DAPM_STREAM_STOP:
3479 w_codec->active = 0;
3480 break;
3481 case SND_SOC_DAPM_STREAM_SUSPEND:
3482 case SND_SOC_DAPM_STREAM_RESUME:
3483 case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
3484 case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
3485 break;
3486 }
3487 }
3488
3489 dapm_power_widgets(&rtd->card->dapm, event);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003490}
3491
3492/**
3493 * snd_soc_dapm_stream_event - send a stream event to the dapm core
3494 * @rtd: PCM runtime data
3495 * @stream: stream name
3496 * @event: stream event
3497 *
3498 * Sends a stream event to the dapm core. The core then makes any
3499 * necessary widget power changes.
3500 *
3501 * Returns 0 for success else error.
3502 */
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003503void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
3504 int event)
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003505{
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00003506 struct snd_soc_card *card = rtd->card;
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003507
Liam Girdwood3cd04342012-03-09 12:02:08 +00003508 mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
Liam Girdwoodd9b09512012-03-07 16:32:59 +00003509 soc_dapm_stream_event(rtd, stream, event);
Liam Girdwooda73fb2d2012-03-07 10:38:26 +00003510 mutex_unlock(&card->dapm_mutex);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003511}
Richard Purdie2b97eab2006-10-06 18:32:18 +02003512
3513/**
Liam Girdwooda5302182008-07-07 13:35:17 +01003514 * snd_soc_dapm_enable_pin - enable pin.
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003515 * @dapm: DAPM context
Liam Girdwooda5302182008-07-07 13:35:17 +01003516 * @pin: pin name
Richard Purdie2b97eab2006-10-06 18:32:18 +02003517 *
Mark Brown74b8f952009-06-06 11:26:15 +01003518 * Enables input/output pin and its parents or children widgets iff there is
Liam Girdwooda5302182008-07-07 13:35:17 +01003519 * a valid audio route and active audio stream.
3520 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3521 * do any widget power switching.
Richard Purdie2b97eab2006-10-06 18:32:18 +02003522 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003523int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003524{
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003525 return snd_soc_dapm_set_pin(dapm, pin, 1);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003526}
Liam Girdwooda5302182008-07-07 13:35:17 +01003527EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003528
3529/**
Mark Brownda341832010-03-15 19:23:37 +00003530 * snd_soc_dapm_force_enable_pin - force a pin to be enabled
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003531 * @dapm: DAPM context
Mark Brownda341832010-03-15 19:23:37 +00003532 * @pin: pin name
3533 *
3534 * Enables input/output pin regardless of any other state. This is
3535 * intended for use with microphone bias supplies used in microphone
3536 * jack detection.
3537 *
3538 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3539 * do any widget power switching.
3540 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003541int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
3542 const char *pin)
Mark Brownda341832010-03-15 19:23:37 +00003543{
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003544 struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
Mark Brownda341832010-03-15 19:23:37 +00003545
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003546 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003547 dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin);
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003548 return -EINVAL;
Mark Brownda341832010-03-15 19:23:37 +00003549 }
3550
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003551 dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin);
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003552 w->connected = 1;
3553 w->force = 1;
Mark Brown75c1f892011-10-04 22:28:08 +01003554 dapm_mark_dirty(w, "force enable");
Mark Brown0d867332011-04-06 11:38:14 +09003555
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003556 return 0;
Mark Brownda341832010-03-15 19:23:37 +00003557}
3558EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin);
3559
3560/**
Liam Girdwooda5302182008-07-07 13:35:17 +01003561 * snd_soc_dapm_disable_pin - disable pin.
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003562 * @dapm: DAPM context
Liam Girdwooda5302182008-07-07 13:35:17 +01003563 * @pin: pin name
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003564 *
Mark Brown74b8f952009-06-06 11:26:15 +01003565 * Disables input/output pin and its parents or children widgets.
Liam Girdwooda5302182008-07-07 13:35:17 +01003566 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3567 * do any widget power switching.
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003568 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003569int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm,
3570 const char *pin)
Liam Girdwooda5302182008-07-07 13:35:17 +01003571{
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003572 return snd_soc_dapm_set_pin(dapm, pin, 0);
Liam Girdwooda5302182008-07-07 13:35:17 +01003573}
3574EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
3575
3576/**
Mark Brown5817b522008-09-24 11:23:11 +01003577 * snd_soc_dapm_nc_pin - permanently disable pin.
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003578 * @dapm: DAPM context
Mark Brown5817b522008-09-24 11:23:11 +01003579 * @pin: pin name
3580 *
3581 * Marks the specified pin as being not connected, disabling it along
3582 * any parent or child widgets. At present this is identical to
3583 * snd_soc_dapm_disable_pin() but in future it will be extended to do
3584 * additional things such as disabling controls which only affect
3585 * paths through the pin.
3586 *
3587 * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
3588 * do any widget power switching.
3589 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003590int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin)
Mark Brown5817b522008-09-24 11:23:11 +01003591{
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003592 return snd_soc_dapm_set_pin(dapm, pin, 0);
Mark Brown5817b522008-09-24 11:23:11 +01003593}
3594EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin);
3595
3596/**
Liam Girdwooda5302182008-07-07 13:35:17 +01003597 * snd_soc_dapm_get_pin_status - get audio pin status
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003598 * @dapm: DAPM context
Liam Girdwooda5302182008-07-07 13:35:17 +01003599 * @pin: audio signal pin endpoint (or start point)
3600 *
3601 * Get audio pin status - connected or disconnected.
3602 *
3603 * Returns 1 for connected otherwise 0.
3604 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003605int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
3606 const char *pin)
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003607{
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003608 struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003609
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003610 if (w)
3611 return w->connected;
Stephen Warrena68b38a2011-04-19 15:25:11 -06003612
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003613 return 0;
3614}
Liam Girdwooda5302182008-07-07 13:35:17 +01003615EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
Graeme Gregoryeeec12b2008-04-30 19:27:40 +02003616
3617/**
Mark Brown1547aba2010-05-07 21:11:40 +01003618 * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003619 * @dapm: DAPM context
Mark Brown1547aba2010-05-07 21:11:40 +01003620 * @pin: audio signal pin endpoint (or start point)
3621 *
3622 * Mark the given endpoint or pin as ignoring suspend. When the
3623 * system is disabled a path between two endpoints flagged as ignoring
3624 * suspend will not be disabled. The path must already be enabled via
3625 * normal means at suspend time, it will not be turned on if it was not
3626 * already enabled.
3627 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003628int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm,
3629 const char *pin)
Mark Brown1547aba2010-05-07 21:11:40 +01003630{
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003631 struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false);
Mark Brown1547aba2010-05-07 21:11:40 +01003632
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003633 if (!w) {
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003634 dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin);
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003635 return -EINVAL;
Mark Brown1547aba2010-05-07 21:11:40 +01003636 }
3637
Lars-Peter Clausen91a5fca2011-04-27 18:34:31 +02003638 w->ignore_suspend = 1;
3639
3640 return 0;
Mark Brown1547aba2010-05-07 21:11:40 +01003641}
3642EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend);
3643
Stephen Warren16332812011-11-23 12:42:04 -07003644static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card,
3645 struct snd_soc_dapm_widget *w)
3646{
3647 struct snd_soc_dapm_path *p;
3648
3649 list_for_each_entry(p, &card->paths, list) {
3650 if ((p->source == w) || (p->sink == w)) {
3651 dev_dbg(card->dev,
3652 "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n",
3653 p->source->name, p->source->id, p->source->dapm,
3654 p->sink->name, p->sink->id, p->sink->dapm);
3655
3656 /* Connected to something other than the codec */
3657 if (p->source->dapm != p->sink->dapm)
3658 return true;
3659 /*
3660 * Loopback connection from codec external pin to
3661 * codec external pin
3662 */
3663 if (p->sink->id == snd_soc_dapm_input) {
3664 switch (p->source->id) {
3665 case snd_soc_dapm_output:
3666 case snd_soc_dapm_micbias:
3667 return true;
3668 default:
3669 break;
3670 }
3671 }
3672 }
3673 }
3674
3675 return false;
3676}
3677
3678/**
3679 * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins
3680 * @codec: The codec whose pins should be processed
3681 *
3682 * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec
3683 * which are unused. Pins are used if they are connected externally to the
3684 * codec, whether that be to some other device, or a loop-back connection to
3685 * the codec itself.
3686 */
3687void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec)
3688{
3689 struct snd_soc_card *card = codec->card;
3690 struct snd_soc_dapm_context *dapm = &codec->dapm;
3691 struct snd_soc_dapm_widget *w;
3692
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003693 dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n",
Stephen Warren16332812011-11-23 12:42:04 -07003694 &card->dapm, &codec->dapm);
3695
3696 list_for_each_entry(w, &card->widgets, list) {
3697 if (w->dapm != dapm)
3698 continue;
3699 switch (w->id) {
3700 case snd_soc_dapm_input:
3701 case snd_soc_dapm_output:
3702 case snd_soc_dapm_micbias:
Liam Girdwood30a6a1a2012-11-19 14:39:12 +00003703 dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n",
Stephen Warren16332812011-11-23 12:42:04 -07003704 w->name);
3705 if (!snd_soc_dapm_widget_in_card_paths(card, w)) {
Mark Browna094b802011-11-27 19:42:20 +00003706 dev_dbg(codec->dev,
Stephen Warren16332812011-11-23 12:42:04 -07003707 "... Not in map; disabling\n");
3708 snd_soc_dapm_nc_pin(dapm, w->name);
3709 }
3710 break;
3711 default:
3712 break;
3713 }
3714 }
3715}
3716
Mark Brown1547aba2010-05-07 21:11:40 +01003717/**
Richard Purdie2b97eab2006-10-06 18:32:18 +02003718 * snd_soc_dapm_free - free dapm resources
Peter Ujfalusi728a5222011-08-26 16:33:52 +03003719 * @dapm: DAPM context
Richard Purdie2b97eab2006-10-06 18:32:18 +02003720 *
3721 * Free all dapm widgets and resources.
3722 */
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003723void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm)
Richard Purdie2b97eab2006-10-06 18:32:18 +02003724{
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003725 snd_soc_dapm_sys_remove(dapm->dev);
Lars-Peter Clausen6c45e122011-04-30 19:45:50 +02003726 dapm_debugfs_cleanup(dapm);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003727 dapm_free_widgets(dapm);
Jarkko Nikula7be31be82010-12-14 12:18:32 +02003728 list_del(&dapm->list);
Richard Purdie2b97eab2006-10-06 18:32:18 +02003729}
3730EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
3731
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003732static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm)
Mark Brown51737472009-06-22 13:16:51 +01003733{
Liam Girdwood01005a72012-07-06 16:57:05 +01003734 struct snd_soc_card *card = dapm->card;
Mark Brown51737472009-06-22 13:16:51 +01003735 struct snd_soc_dapm_widget *w;
3736 LIST_HEAD(down_list);
3737 int powerdown = 0;
3738
Liam Girdwood01005a72012-07-06 16:57:05 +01003739 mutex_lock(&card->dapm_mutex);
3740
Jarkko Nikula97c866d2010-12-14 12:18:31 +02003741 list_for_each_entry(w, &dapm->card->widgets, list) {
3742 if (w->dapm != dapm)
3743 continue;
Mark Brown51737472009-06-22 13:16:51 +01003744 if (w->power) {
Mark Brown828a8422011-01-15 13:14:30 +00003745 dapm_seq_insert(w, &down_list, false);
Mark Brownc2caa4d2009-06-26 15:36:56 +01003746 w->power = 0;
Mark Brown51737472009-06-22 13:16:51 +01003747 powerdown = 1;
3748 }
3749 }
3750
3751 /* If there were no widgets to power down we're already in
3752 * standby.
3753 */
3754 if (powerdown) {
Mark Brown7679e422012-02-22 15:52:56 +00003755 if (dapm->bias_level == SND_SOC_BIAS_ON)
3756 snd_soc_dapm_set_bias_level(dapm,
3757 SND_SOC_BIAS_PREPARE);
Mark Brown828a8422011-01-15 13:14:30 +00003758 dapm_seq_run(dapm, &down_list, 0, false);
Mark Brown7679e422012-02-22 15:52:56 +00003759 if (dapm->bias_level == SND_SOC_BIAS_PREPARE)
3760 snd_soc_dapm_set_bias_level(dapm,
3761 SND_SOC_BIAS_STANDBY);
Mark Brown51737472009-06-22 13:16:51 +01003762 }
Liam Girdwood01005a72012-07-06 16:57:05 +01003763
3764 mutex_unlock(&card->dapm_mutex);
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003765}
Mark Brown51737472009-06-22 13:16:51 +01003766
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +00003767/*
3768 * snd_soc_dapm_shutdown - callback for system shutdown
3769 */
3770void snd_soc_dapm_shutdown(struct snd_soc_card *card)
3771{
3772 struct snd_soc_codec *codec;
3773
Misael Lopez Cruz445632a2012-11-08 12:03:12 -06003774 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003775 soc_dapm_shutdown_codec(&codec->dapm);
Mark Brown7679e422012-02-22 15:52:56 +00003776 if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY)
3777 snd_soc_dapm_set_bias_level(&codec->dapm,
3778 SND_SOC_BIAS_OFF);
Liam Girdwoodce6120c2010-11-05 15:53:46 +02003779 }
Mark Brown51737472009-06-22 13:16:51 +01003780}
3781
Richard Purdie2b97eab2006-10-06 18:32:18 +02003782/* Module information */
Liam Girdwoodd3311242008-10-12 13:17:36 +01003783MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
Richard Purdie2b97eab2006-10-06 18:32:18 +02003784MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC");
3785MODULE_LICENSE("GPL");