Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1 | /* |
| 2 | * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management |
| 3 | * |
| 4 | * Copyright 2005 Wolfson Microelectronics PLC. |
Liam Girdwood | d331124 | 2008-10-12 13:17:36 +0100 | [diff] [blame] | 5 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of the GNU General Public License as published by the |
| 9 | * Free Software Foundation; either version 2 of the License, or (at your |
| 10 | * option) any later version. |
| 11 | * |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 12 | * Features: |
| 13 | * o Changes power status of internal codec blocks depending on the |
| 14 | * dynamic configuration of codec internal audio paths and active |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 15 | * DACs/ADCs. |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 16 | * o Platform power domain - can support external components i.e. amps and |
| 17 | * mic/meadphone insertion events. |
| 18 | * o Automatic Mic Bias support |
| 19 | * o Jack insertion power event initiation - e.g. hp insertion will enable |
| 20 | * sinks, dacs, etc |
Robert P. J. Day | 3a4fa0a | 2007-10-19 23:10:43 +0200 | [diff] [blame] | 21 | * o Delayed powerdown of audio susbsystem to reduce pops between a quick |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 22 | * device reopen. |
| 23 | * |
| 24 | * Todo: |
| 25 | * o DAPM power change sequencing - allow for configurable per |
| 26 | * codec sequences. |
| 27 | * o Support for analogue bias optimisation. |
| 28 | * o Support for reduced codec oversampling rates. |
| 29 | * o Support for reduced codec bias currents. |
| 30 | */ |
| 31 | |
| 32 | #include <linux/module.h> |
| 33 | #include <linux/moduleparam.h> |
| 34 | #include <linux/init.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/pm.h> |
| 37 | #include <linux/bitops.h> |
| 38 | #include <linux/platform_device.h> |
| 39 | #include <linux/jiffies.h> |
Takashi Iwai | 20496ff | 2009-08-24 09:40:34 +0200 | [diff] [blame] | 40 | #include <linux/debugfs.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 41 | #include <linux/slab.h> |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 42 | #include <sound/core.h> |
| 43 | #include <sound/pcm.h> |
| 44 | #include <sound/pcm_params.h> |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 45 | #include <sound/soc.h> |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 46 | #include <sound/initval.h> |
| 47 | |
Mark Brown | 84e9093 | 2010-11-04 00:07:02 -0400 | [diff] [blame] | 48 | #include <trace/events/asoc.h> |
| 49 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 50 | /* dapm power sequences - make this per codec in the future */ |
| 51 | static int dapm_up_seq[] = { |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 52 | [snd_soc_dapm_pre] = 0, |
| 53 | [snd_soc_dapm_supply] = 1, |
| 54 | [snd_soc_dapm_micbias] = 2, |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 55 | [snd_soc_dapm_aif_in] = 3, |
| 56 | [snd_soc_dapm_aif_out] = 3, |
| 57 | [snd_soc_dapm_mic] = 4, |
| 58 | [snd_soc_dapm_mux] = 5, |
Dimitris Papastamos | 24ff33a | 2010-12-16 15:53:39 +0000 | [diff] [blame] | 59 | [snd_soc_dapm_virt_mux] = 5, |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 60 | [snd_soc_dapm_value_mux] = 5, |
| 61 | [snd_soc_dapm_dac] = 6, |
| 62 | [snd_soc_dapm_mixer] = 7, |
| 63 | [snd_soc_dapm_mixer_named_ctl] = 7, |
| 64 | [snd_soc_dapm_pga] = 8, |
| 65 | [snd_soc_dapm_adc] = 9, |
Olaya, Margarita | d88429a | 2010-12-10 21:11:44 -0600 | [diff] [blame] | 66 | [snd_soc_dapm_out_drv] = 10, |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 67 | [snd_soc_dapm_hp] = 10, |
| 68 | [snd_soc_dapm_spk] = 10, |
| 69 | [snd_soc_dapm_post] = 11, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 70 | }; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 71 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 72 | static int dapm_down_seq[] = { |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 73 | [snd_soc_dapm_pre] = 0, |
| 74 | [snd_soc_dapm_adc] = 1, |
| 75 | [snd_soc_dapm_hp] = 2, |
Mark Brown | 1ca0406 | 2009-08-17 16:26:59 +0100 | [diff] [blame] | 76 | [snd_soc_dapm_spk] = 2, |
Olaya, Margarita | d88429a | 2010-12-10 21:11:44 -0600 | [diff] [blame] | 77 | [snd_soc_dapm_out_drv] = 2, |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 78 | [snd_soc_dapm_pga] = 4, |
| 79 | [snd_soc_dapm_mixer_named_ctl] = 5, |
Mark Brown | e3d4dab | 2009-06-07 13:08:45 +0100 | [diff] [blame] | 80 | [snd_soc_dapm_mixer] = 5, |
| 81 | [snd_soc_dapm_dac] = 6, |
| 82 | [snd_soc_dapm_mic] = 7, |
| 83 | [snd_soc_dapm_micbias] = 8, |
| 84 | [snd_soc_dapm_mux] = 9, |
Dimitris Papastamos | 24ff33a | 2010-12-16 15:53:39 +0000 | [diff] [blame] | 85 | [snd_soc_dapm_virt_mux] = 9, |
Mark Brown | e3d4dab | 2009-06-07 13:08:45 +0100 | [diff] [blame] | 86 | [snd_soc_dapm_value_mux] = 9, |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 87 | [snd_soc_dapm_aif_in] = 10, |
| 88 | [snd_soc_dapm_aif_out] = 10, |
| 89 | [snd_soc_dapm_supply] = 11, |
| 90 | [snd_soc_dapm_post] = 12, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 91 | }; |
| 92 | |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 93 | static void pop_wait(u32 pop_time) |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 94 | { |
| 95 | if (pop_time) |
| 96 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); |
| 97 | } |
| 98 | |
Jarkko Nikula | fd8d3bc | 2010-11-09 14:40:28 +0200 | [diff] [blame] | 99 | static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 100 | { |
| 101 | va_list args; |
Jarkko Nikula | fd8d3bc | 2010-11-09 14:40:28 +0200 | [diff] [blame] | 102 | char *buf; |
| 103 | |
| 104 | if (!pop_time) |
| 105 | return; |
| 106 | |
| 107 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
| 108 | if (buf == NULL) |
| 109 | return; |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 110 | |
| 111 | va_start(args, fmt); |
Jarkko Nikula | fd8d3bc | 2010-11-09 14:40:28 +0200 | [diff] [blame] | 112 | vsnprintf(buf, PAGE_SIZE, fmt, args); |
Takashi Iwai | 9d01df0 | 2010-12-22 14:08:40 +0100 | [diff] [blame] | 113 | dev_info(dev, "%s", buf); |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 114 | va_end(args); |
Jarkko Nikula | fd8d3bc | 2010-11-09 14:40:28 +0200 | [diff] [blame] | 115 | |
| 116 | kfree(buf); |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 117 | } |
| 118 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 119 | /* create a new dapm widget */ |
Takashi Iwai | 88cb429 | 2007-02-05 14:56:20 +0100 | [diff] [blame] | 120 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 121 | const struct snd_soc_dapm_widget *_widget) |
| 122 | { |
Takashi Iwai | 88cb429 | 2007-02-05 14:56:20 +0100 | [diff] [blame] | 123 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 124 | } |
| 125 | |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 126 | /** |
| 127 | * snd_soc_dapm_set_bias_level - set the bias level for the system |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 128 | * @card: audio device |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 129 | * @level: level to configure |
| 130 | * |
| 131 | * Configure the bias (power) levels for the SoC audio device. |
| 132 | * |
| 133 | * Returns 0 for success else error. |
| 134 | */ |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 135 | static int snd_soc_dapm_set_bias_level(struct snd_soc_card *card, |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 136 | struct snd_soc_dapm_context *dapm, |
| 137 | enum snd_soc_bias_level level) |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 138 | { |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 139 | int ret = 0; |
| 140 | |
Mark Brown | f83fba8 | 2009-05-18 15:44:43 +0100 | [diff] [blame] | 141 | switch (level) { |
| 142 | case SND_SOC_BIAS_ON: |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 143 | dev_dbg(dapm->dev, "Setting full bias\n"); |
Mark Brown | f83fba8 | 2009-05-18 15:44:43 +0100 | [diff] [blame] | 144 | break; |
| 145 | case SND_SOC_BIAS_PREPARE: |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 146 | dev_dbg(dapm->dev, "Setting bias prepare\n"); |
Mark Brown | f83fba8 | 2009-05-18 15:44:43 +0100 | [diff] [blame] | 147 | break; |
| 148 | case SND_SOC_BIAS_STANDBY: |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 149 | dev_dbg(dapm->dev, "Setting standby bias\n"); |
Mark Brown | f83fba8 | 2009-05-18 15:44:43 +0100 | [diff] [blame] | 150 | break; |
| 151 | case SND_SOC_BIAS_OFF: |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 152 | dev_dbg(dapm->dev, "Setting bias off\n"); |
Mark Brown | f83fba8 | 2009-05-18 15:44:43 +0100 | [diff] [blame] | 153 | break; |
| 154 | default: |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 155 | dev_err(dapm->dev, "Setting invalid bias %d\n", level); |
Mark Brown | f83fba8 | 2009-05-18 15:44:43 +0100 | [diff] [blame] | 156 | return -EINVAL; |
| 157 | } |
| 158 | |
Mark Brown | 84e9093 | 2010-11-04 00:07:02 -0400 | [diff] [blame] | 159 | trace_snd_soc_bias_level_start(card, level); |
| 160 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 161 | if (card && card->set_bias_level) |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 162 | ret = card->set_bias_level(card, level); |
Mark Brown | 474e09c | 2009-08-19 14:18:53 +0100 | [diff] [blame] | 163 | if (ret == 0) { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 164 | if (dapm->codec && dapm->codec->driver->set_bias_level) |
| 165 | ret = dapm->codec->driver->set_bias_level(dapm->codec, level); |
Mark Brown | 474e09c | 2009-08-19 14:18:53 +0100 | [diff] [blame] | 166 | else |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 167 | dapm->bias_level = level; |
Mark Brown | 474e09c | 2009-08-19 14:18:53 +0100 | [diff] [blame] | 168 | } |
Mark Brown | 1badabd | 2010-12-04 12:41:04 +0000 | [diff] [blame] | 169 | if (ret == 0) { |
| 170 | if (card && card->set_bias_level_post) |
| 171 | ret = card->set_bias_level_post(card, level); |
| 172 | } |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 173 | |
Mark Brown | 84e9093 | 2010-11-04 00:07:02 -0400 | [diff] [blame] | 174 | trace_snd_soc_bias_level_done(card, level); |
| 175 | |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 176 | return ret; |
| 177 | } |
| 178 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 179 | /* set up initial codec paths */ |
| 180 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, |
| 181 | struct snd_soc_dapm_path *p, int i) |
| 182 | { |
| 183 | switch (w->id) { |
| 184 | case snd_soc_dapm_switch: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 185 | case snd_soc_dapm_mixer: |
| 186 | case snd_soc_dapm_mixer_named_ctl: { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 187 | int val; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 188 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
| 189 | w->kcontrols[i].private_value; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 190 | unsigned int reg = mc->reg; |
| 191 | unsigned int shift = mc->shift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 192 | int max = mc->max; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 193 | unsigned int mask = (1 << fls(max)) - 1; |
| 194 | unsigned int invert = mc->invert; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 195 | |
| 196 | val = snd_soc_read(w->codec, reg); |
| 197 | val = (val >> shift) & mask; |
| 198 | |
| 199 | if ((invert && !val) || (!invert && val)) |
| 200 | p->connect = 1; |
| 201 | else |
| 202 | p->connect = 0; |
| 203 | } |
| 204 | break; |
| 205 | case snd_soc_dapm_mux: { |
| 206 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; |
| 207 | int val, item, bitmask; |
| 208 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 209 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 210 | ; |
| 211 | val = snd_soc_read(w->codec, e->reg); |
| 212 | item = (val >> e->shift_l) & (bitmask - 1); |
| 213 | |
| 214 | p->connect = 0; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 215 | for (i = 0; i < e->max; i++) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 216 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
| 217 | p->connect = 1; |
| 218 | } |
| 219 | } |
| 220 | break; |
Dimitris Papastamos | 24ff33a | 2010-12-16 15:53:39 +0000 | [diff] [blame] | 221 | case snd_soc_dapm_virt_mux: { |
| 222 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; |
| 223 | |
| 224 | p->connect = 0; |
| 225 | /* since a virtual mux has no backing registers to |
| 226 | * decide which path to connect, it will try to match |
| 227 | * with the first enumeration. This is to ensure |
| 228 | * that the default mux choice (the first) will be |
| 229 | * correctly powered up during initialization. |
| 230 | */ |
| 231 | if (!strcmp(p->name, e->texts[0])) |
| 232 | p->connect = 1; |
| 233 | } |
| 234 | break; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 235 | case snd_soc_dapm_value_mux: { |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 236 | struct soc_enum *e = (struct soc_enum *) |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 237 | w->kcontrols[i].private_value; |
| 238 | int val, item; |
| 239 | |
| 240 | val = snd_soc_read(w->codec, e->reg); |
| 241 | val = (val >> e->shift_l) & e->mask; |
| 242 | for (item = 0; item < e->max; item++) { |
| 243 | if (val == e->values[item]) |
| 244 | break; |
| 245 | } |
| 246 | |
| 247 | p->connect = 0; |
| 248 | for (i = 0; i < e->max; i++) { |
| 249 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
| 250 | p->connect = 1; |
| 251 | } |
| 252 | } |
| 253 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 254 | /* does not effect routing - always connected */ |
| 255 | case snd_soc_dapm_pga: |
Olaya, Margarita | d88429a | 2010-12-10 21:11:44 -0600 | [diff] [blame] | 256 | case snd_soc_dapm_out_drv: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 257 | case snd_soc_dapm_output: |
| 258 | case snd_soc_dapm_adc: |
| 259 | case snd_soc_dapm_input: |
| 260 | case snd_soc_dapm_dac: |
| 261 | case snd_soc_dapm_micbias: |
| 262 | case snd_soc_dapm_vmid: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 263 | case snd_soc_dapm_supply: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 264 | case snd_soc_dapm_aif_in: |
| 265 | case snd_soc_dapm_aif_out: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 266 | p->connect = 1; |
| 267 | break; |
| 268 | /* does effect routing - dynamically connected */ |
| 269 | case snd_soc_dapm_hp: |
| 270 | case snd_soc_dapm_mic: |
| 271 | case snd_soc_dapm_spk: |
| 272 | case snd_soc_dapm_line: |
| 273 | case snd_soc_dapm_pre: |
| 274 | case snd_soc_dapm_post: |
| 275 | p->connect = 0; |
| 276 | break; |
| 277 | } |
| 278 | } |
| 279 | |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 280 | /* connect mux widget to its interconnecting audio paths */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 281 | static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 282 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
| 283 | struct snd_soc_dapm_path *path, const char *control_name, |
| 284 | const struct snd_kcontrol_new *kcontrol) |
| 285 | { |
| 286 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 287 | int i; |
| 288 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 289 | for (i = 0; i < e->max; i++) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 290 | if (!(strcmp(control_name, e->texts[i]))) { |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 291 | list_add(&path->list, &dapm->card->paths); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 292 | list_add(&path->list_sink, &dest->sources); |
| 293 | list_add(&path->list_source, &src->sinks); |
| 294 | path->name = (char*)e->texts[i]; |
| 295 | dapm_set_path_status(dest, path, 0); |
| 296 | return 0; |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | return -ENODEV; |
| 301 | } |
| 302 | |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 303 | /* connect mixer widget to its interconnecting audio paths */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 304 | static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 305 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
| 306 | struct snd_soc_dapm_path *path, const char *control_name) |
| 307 | { |
| 308 | int i; |
| 309 | |
| 310 | /* search for mixer kcontrol */ |
| 311 | for (i = 0; i < dest->num_kcontrols; i++) { |
| 312 | if (!strcmp(control_name, dest->kcontrols[i].name)) { |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 313 | list_add(&path->list, &dapm->card->paths); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 314 | list_add(&path->list_sink, &dest->sources); |
| 315 | list_add(&path->list_source, &src->sinks); |
| 316 | path->name = dest->kcontrols[i].name; |
| 317 | dapm_set_path_status(dest, path, i); |
| 318 | return 0; |
| 319 | } |
| 320 | } |
| 321 | return -ENODEV; |
| 322 | } |
| 323 | |
| 324 | /* update dapm codec register bits */ |
| 325 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) |
| 326 | { |
| 327 | int change, power; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 328 | unsigned int old, new; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 329 | struct snd_soc_codec *codec = widget->codec; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 330 | struct snd_soc_dapm_context *dapm = widget->dapm; |
Jarkko Nikula | 3a45b86 | 2010-11-05 20:35:21 +0200 | [diff] [blame] | 331 | struct snd_soc_card *card = dapm->card; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 332 | |
| 333 | /* check for valid widgets */ |
| 334 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || |
| 335 | widget->id == snd_soc_dapm_output || |
| 336 | widget->id == snd_soc_dapm_hp || |
| 337 | widget->id == snd_soc_dapm_mic || |
| 338 | widget->id == snd_soc_dapm_line || |
| 339 | widget->id == snd_soc_dapm_spk) |
| 340 | return 0; |
| 341 | |
| 342 | power = widget->power; |
| 343 | if (widget->invert) |
| 344 | power = (power ? 0:1); |
| 345 | |
| 346 | old = snd_soc_read(codec, widget->reg); |
| 347 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); |
| 348 | |
| 349 | change = old != new; |
| 350 | if (change) { |
Jarkko Nikula | fd8d3bc | 2010-11-09 14:40:28 +0200 | [diff] [blame] | 351 | pop_dbg(dapm->dev, card->pop_time, |
| 352 | "pop test %s : %s in %d ms\n", |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 353 | widget->name, widget->power ? "on" : "off", |
Jarkko Nikula | 3a45b86 | 2010-11-05 20:35:21 +0200 | [diff] [blame] | 354 | card->pop_time); |
| 355 | pop_wait(card->pop_time); |
Mark Brown | 6922471 | 2010-03-03 14:57:09 +0000 | [diff] [blame] | 356 | snd_soc_write(codec, widget->reg, new); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 357 | } |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 358 | dev_dbg(dapm->dev, "reg %x old %x new %x change %d\n", widget->reg, |
| 359 | old, new, change); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 360 | return change; |
| 361 | } |
| 362 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 363 | /* create new dapm mixer control */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 364 | static int dapm_new_mixer(struct snd_soc_dapm_context *dapm, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 365 | struct snd_soc_dapm_widget *w) |
| 366 | { |
| 367 | int i, ret = 0; |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 368 | size_t name_len; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 369 | struct snd_soc_dapm_path *path; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 370 | struct snd_card *card = dapm->codec->card->snd_card; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 371 | |
| 372 | /* add kcontrol */ |
| 373 | for (i = 0; i < w->num_kcontrols; i++) { |
| 374 | |
| 375 | /* match name */ |
| 376 | list_for_each_entry(path, &w->sources, list_sink) { |
| 377 | |
| 378 | /* mixer/mux paths name must match control name */ |
| 379 | if (path->name != (char*)w->kcontrols[i].name) |
| 380 | continue; |
| 381 | |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 382 | /* add dapm control with long name. |
| 383 | * for dapm_mixer this is the concatenation of the |
| 384 | * mixer and kcontrol name. |
| 385 | * for dapm_mixer_named_ctl this is simply the |
| 386 | * kcontrol name. |
| 387 | */ |
| 388 | name_len = strlen(w->kcontrols[i].name) + 1; |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 389 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 390 | name_len += 1 + strlen(w->name); |
| 391 | |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 392 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 393 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 394 | if (path->long_name == NULL) |
| 395 | return -ENOMEM; |
| 396 | |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 397 | switch (w->id) { |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 398 | default: |
| 399 | snprintf(path->long_name, name_len, "%s %s", |
| 400 | w->name, w->kcontrols[i].name); |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 401 | break; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 402 | case snd_soc_dapm_mixer_named_ctl: |
| 403 | snprintf(path->long_name, name_len, "%s", |
| 404 | w->kcontrols[i].name); |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 405 | break; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 406 | } |
| 407 | |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 408 | path->long_name[name_len - 1] = '\0'; |
| 409 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 410 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
| 411 | path->long_name); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 412 | ret = snd_ctl_add(card, path->kcontrol); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 413 | if (ret < 0) { |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 414 | dev_err(dapm->dev, |
| 415 | "asoc: failed to add dapm kcontrol %s: %d\n", |
| 416 | path->long_name, ret); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 417 | kfree(path->long_name); |
| 418 | path->long_name = NULL; |
| 419 | return ret; |
| 420 | } |
| 421 | } |
| 422 | } |
| 423 | return ret; |
| 424 | } |
| 425 | |
| 426 | /* create new dapm mux control */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 427 | static int dapm_new_mux(struct snd_soc_dapm_context *dapm, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 428 | struct snd_soc_dapm_widget *w) |
| 429 | { |
| 430 | struct snd_soc_dapm_path *path = NULL; |
| 431 | struct snd_kcontrol *kcontrol; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 432 | struct snd_card *card = dapm->codec->card->snd_card; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 433 | int ret = 0; |
| 434 | |
| 435 | if (!w->num_kcontrols) { |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 436 | dev_err(dapm->dev, "asoc: mux %s has no controls\n", w->name); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 437 | return -EINVAL; |
| 438 | } |
| 439 | |
| 440 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 441 | ret = snd_ctl_add(card, kcontrol); |
| 442 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 443 | if (ret < 0) |
| 444 | goto err; |
| 445 | |
| 446 | list_for_each_entry(path, &w->sources, list_sink) |
| 447 | path->kcontrol = kcontrol; |
| 448 | |
| 449 | return ret; |
| 450 | |
| 451 | err: |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 452 | dev_err(dapm->dev, "asoc: failed to add kcontrol %s\n", w->name); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 453 | return ret; |
| 454 | } |
| 455 | |
| 456 | /* create new dapm volume control */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 457 | static int dapm_new_pga(struct snd_soc_dapm_context *dapm, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 458 | struct snd_soc_dapm_widget *w) |
| 459 | { |
Mark Brown | a6c6573 | 2010-03-03 17:45:21 +0000 | [diff] [blame] | 460 | if (w->num_kcontrols) |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 461 | dev_err(w->dapm->dev, |
| 462 | "asoc: PGA controls not supported: '%s'\n", w->name); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 463 | |
Mark Brown | a6c6573 | 2010-03-03 17:45:21 +0000 | [diff] [blame] | 464 | return 0; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | /* reset 'walked' bit for each dapm path */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 468 | static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 469 | { |
| 470 | struct snd_soc_dapm_path *p; |
| 471 | |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 472 | list_for_each_entry(p, &dapm->card->paths, list) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 473 | p->walked = 0; |
| 474 | } |
| 475 | |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 476 | /* We implement power down on suspend by checking the power state of |
| 477 | * the ALSA card - when we are suspending the ALSA state for the card |
| 478 | * is set to D3. |
| 479 | */ |
| 480 | static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) |
| 481 | { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 482 | int level = snd_power_get_state(widget->dapm->codec->card->snd_card); |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 483 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 484 | switch (level) { |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 485 | case SNDRV_CTL_POWER_D3hot: |
| 486 | case SNDRV_CTL_POWER_D3cold: |
Mark Brown | 1547aba | 2010-05-07 21:11:40 +0100 | [diff] [blame] | 487 | if (widget->ignore_suspend) |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 488 | dev_dbg(widget->dapm->dev, "%s ignoring suspend\n", |
| 489 | widget->name); |
Mark Brown | 1547aba | 2010-05-07 21:11:40 +0100 | [diff] [blame] | 490 | return widget->ignore_suspend; |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 491 | default: |
| 492 | return 1; |
| 493 | } |
| 494 | } |
| 495 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 496 | /* |
| 497 | * Recursively check for a completed path to an active or physically connected |
| 498 | * output widget. Returns number of complete paths. |
| 499 | */ |
| 500 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) |
| 501 | { |
| 502 | struct snd_soc_dapm_path *path; |
| 503 | int con = 0; |
| 504 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 505 | if (widget->id == snd_soc_dapm_supply) |
| 506 | return 0; |
| 507 | |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 508 | switch (widget->id) { |
| 509 | case snd_soc_dapm_adc: |
| 510 | case snd_soc_dapm_aif_out: |
| 511 | if (widget->active) |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 512 | return snd_soc_dapm_suspend_check(widget); |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 513 | default: |
| 514 | break; |
| 515 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 516 | |
| 517 | if (widget->connected) { |
| 518 | /* connected pin ? */ |
| 519 | if (widget->id == snd_soc_dapm_output && !widget->ext) |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 520 | return snd_soc_dapm_suspend_check(widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 521 | |
| 522 | /* connected jack or spk ? */ |
| 523 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || |
Peter Ujfalusi | eaeae5d | 2009-09-30 09:27:24 +0300 | [diff] [blame] | 524 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sources))) |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 525 | return snd_soc_dapm_suspend_check(widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | list_for_each_entry(path, &widget->sinks, list_source) { |
| 529 | if (path->walked) |
| 530 | continue; |
| 531 | |
| 532 | if (path->sink && path->connect) { |
| 533 | path->walked = 1; |
| 534 | con += is_connected_output_ep(path->sink); |
| 535 | } |
| 536 | } |
| 537 | |
| 538 | return con; |
| 539 | } |
| 540 | |
| 541 | /* |
| 542 | * Recursively check for a completed path to an active or physically connected |
| 543 | * input widget. Returns number of complete paths. |
| 544 | */ |
| 545 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) |
| 546 | { |
| 547 | struct snd_soc_dapm_path *path; |
| 548 | int con = 0; |
| 549 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 550 | if (widget->id == snd_soc_dapm_supply) |
| 551 | return 0; |
| 552 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 553 | /* active stream ? */ |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 554 | switch (widget->id) { |
| 555 | case snd_soc_dapm_dac: |
| 556 | case snd_soc_dapm_aif_in: |
| 557 | if (widget->active) |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 558 | return snd_soc_dapm_suspend_check(widget); |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 559 | default: |
| 560 | break; |
| 561 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 562 | |
| 563 | if (widget->connected) { |
| 564 | /* connected pin ? */ |
| 565 | if (widget->id == snd_soc_dapm_input && !widget->ext) |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 566 | return snd_soc_dapm_suspend_check(widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 567 | |
| 568 | /* connected VMID/Bias for lower pops */ |
| 569 | if (widget->id == snd_soc_dapm_vmid) |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 570 | return snd_soc_dapm_suspend_check(widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 571 | |
| 572 | /* connected jack ? */ |
Peter Ujfalusi | eaeae5d | 2009-09-30 09:27:24 +0300 | [diff] [blame] | 573 | if (widget->id == snd_soc_dapm_mic || |
| 574 | (widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 575 | return snd_soc_dapm_suspend_check(widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 576 | } |
| 577 | |
| 578 | list_for_each_entry(path, &widget->sources, list_sink) { |
| 579 | if (path->walked) |
| 580 | continue; |
| 581 | |
| 582 | if (path->source && path->connect) { |
| 583 | path->walked = 1; |
| 584 | con += is_connected_input_ep(path->source); |
| 585 | } |
| 586 | } |
| 587 | |
| 588 | return con; |
| 589 | } |
| 590 | |
| 591 | /* |
Jarkko Nikula | e2be2cc | 2008-06-25 14:42:07 +0300 | [diff] [blame] | 592 | * Handler for generic register modifier widget. |
| 593 | */ |
| 594 | int dapm_reg_event(struct snd_soc_dapm_widget *w, |
| 595 | struct snd_kcontrol *kcontrol, int event) |
| 596 | { |
| 597 | unsigned int val; |
| 598 | |
| 599 | if (SND_SOC_DAPM_EVENT_ON(event)) |
| 600 | val = w->on_val; |
| 601 | else |
| 602 | val = w->off_val; |
| 603 | |
| 604 | snd_soc_update_bits(w->codec, -(w->reg + 1), |
| 605 | w->mask << w->shift, val << w->shift); |
| 606 | |
| 607 | return 0; |
| 608 | } |
Mark Brown | 1158941 | 2008-07-29 11:42:23 +0100 | [diff] [blame] | 609 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
Jarkko Nikula | e2be2cc | 2008-06-25 14:42:07 +0300 | [diff] [blame] | 610 | |
Mark Brown | 025756e | 2009-04-13 11:09:18 +0100 | [diff] [blame] | 611 | /* Standard power change method, used to apply power changes to most |
| 612 | * widgets. |
| 613 | */ |
| 614 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) |
| 615 | { |
| 616 | int ret; |
| 617 | |
| 618 | /* call any power change event handlers */ |
| 619 | if (w->event) |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 620 | dev_dbg(w->dapm->dev, "power %s event for %s flags %x\n", |
Mark Brown | 025756e | 2009-04-13 11:09:18 +0100 | [diff] [blame] | 621 | w->power ? "on" : "off", |
| 622 | w->name, w->event_flags); |
| 623 | |
| 624 | /* power up pre event */ |
| 625 | if (w->power && w->event && |
| 626 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { |
| 627 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); |
| 628 | if (ret < 0) |
| 629 | return ret; |
| 630 | } |
| 631 | |
| 632 | /* power down pre event */ |
| 633 | if (!w->power && w->event && |
| 634 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { |
| 635 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); |
| 636 | if (ret < 0) |
| 637 | return ret; |
| 638 | } |
| 639 | |
Mark Brown | 025756e | 2009-04-13 11:09:18 +0100 | [diff] [blame] | 640 | dapm_update_bits(w); |
| 641 | |
Mark Brown | 025756e | 2009-04-13 11:09:18 +0100 | [diff] [blame] | 642 | /* power up post event */ |
| 643 | if (w->power && w->event && |
| 644 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { |
| 645 | ret = w->event(w, |
| 646 | NULL, SND_SOC_DAPM_POST_PMU); |
| 647 | if (ret < 0) |
| 648 | return ret; |
| 649 | } |
| 650 | |
| 651 | /* power down post event */ |
| 652 | if (!w->power && w->event && |
| 653 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { |
| 654 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); |
| 655 | if (ret < 0) |
| 656 | return ret; |
| 657 | } |
| 658 | |
| 659 | return 0; |
| 660 | } |
| 661 | |
Mark Brown | cd0f2d4 | 2009-04-20 16:56:59 +0100 | [diff] [blame] | 662 | /* Generic check to see if a widget should be powered. |
| 663 | */ |
| 664 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) |
| 665 | { |
| 666 | int in, out; |
| 667 | |
| 668 | in = is_connected_input_ep(w); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 669 | dapm_clear_walk(w->dapm); |
Mark Brown | cd0f2d4 | 2009-04-20 16:56:59 +0100 | [diff] [blame] | 670 | out = is_connected_output_ep(w); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 671 | dapm_clear_walk(w->dapm); |
Mark Brown | cd0f2d4 | 2009-04-20 16:56:59 +0100 | [diff] [blame] | 672 | return out != 0 && in != 0; |
| 673 | } |
| 674 | |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 675 | /* Check to see if an ADC has power */ |
| 676 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) |
| 677 | { |
| 678 | int in; |
| 679 | |
| 680 | if (w->active) { |
| 681 | in = is_connected_input_ep(w); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 682 | dapm_clear_walk(w->dapm); |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 683 | return in != 0; |
| 684 | } else { |
| 685 | return dapm_generic_check_power(w); |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | /* Check to see if a DAC has power */ |
| 690 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) |
| 691 | { |
| 692 | int out; |
| 693 | |
| 694 | if (w->active) { |
| 695 | out = is_connected_output_ep(w); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 696 | dapm_clear_walk(w->dapm); |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 697 | return out != 0; |
| 698 | } else { |
| 699 | return dapm_generic_check_power(w); |
| 700 | } |
| 701 | } |
| 702 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 703 | /* Check to see if a power supply is needed */ |
| 704 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) |
| 705 | { |
| 706 | struct snd_soc_dapm_path *path; |
| 707 | int power = 0; |
| 708 | |
| 709 | /* Check if one of our outputs is connected */ |
| 710 | list_for_each_entry(path, &w->sinks, list_source) { |
Mark Brown | 215edda | 2009-09-08 18:59:05 +0100 | [diff] [blame] | 711 | if (path->connected && |
| 712 | !path->connected(path->source, path->sink)) |
| 713 | continue; |
| 714 | |
Mark Brown | 3017358 | 2011-02-11 11:42:19 +0000 | [diff] [blame^] | 715 | if (!path->sink) |
| 716 | continue; |
| 717 | |
| 718 | if (path->sink->force) { |
| 719 | power = 1; |
| 720 | break; |
| 721 | } |
| 722 | |
| 723 | if (path->sink->power_check && |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 724 | path->sink->power_check(path->sink)) { |
| 725 | power = 1; |
| 726 | break; |
| 727 | } |
| 728 | } |
| 729 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 730 | dapm_clear_walk(w->dapm); |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 731 | |
| 732 | return power; |
| 733 | } |
| 734 | |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 735 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
| 736 | struct snd_soc_dapm_widget *b, |
| 737 | int sort[]) |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 738 | { |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 739 | if (sort[a->id] != sort[b->id]) |
| 740 | return sort[a->id] - sort[b->id]; |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 741 | if (a->reg != b->reg) |
| 742 | return a->reg - b->reg; |
Mark Brown | 84dab56 | 2010-11-12 15:28:42 +0000 | [diff] [blame] | 743 | if (a->dapm != b->dapm) |
| 744 | return (unsigned long)a->dapm - (unsigned long)b->dapm; |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 745 | |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 746 | return 0; |
| 747 | } |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 748 | |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 749 | /* Insert a widget in order into a DAPM power sequence. */ |
| 750 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, |
| 751 | struct list_head *list, |
| 752 | int sort[]) |
| 753 | { |
| 754 | struct snd_soc_dapm_widget *w; |
| 755 | |
| 756 | list_for_each_entry(w, list, power_list) |
| 757 | if (dapm_seq_compare(new_widget, w, sort) < 0) { |
| 758 | list_add_tail(&new_widget->power_list, &w->power_list); |
| 759 | return; |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 760 | } |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 761 | |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 762 | list_add_tail(&new_widget->power_list, list); |
| 763 | } |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 764 | |
Mark Brown | 68f89ad | 2010-11-03 23:51:49 -0400 | [diff] [blame] | 765 | static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, |
| 766 | struct snd_soc_dapm_widget *w, int event) |
| 767 | { |
| 768 | struct snd_soc_card *card = dapm->card; |
| 769 | const char *ev_name; |
| 770 | int power, ret; |
| 771 | |
| 772 | switch (event) { |
| 773 | case SND_SOC_DAPM_PRE_PMU: |
| 774 | ev_name = "PRE_PMU"; |
| 775 | power = 1; |
| 776 | break; |
| 777 | case SND_SOC_DAPM_POST_PMU: |
| 778 | ev_name = "POST_PMU"; |
| 779 | power = 1; |
| 780 | break; |
| 781 | case SND_SOC_DAPM_PRE_PMD: |
| 782 | ev_name = "PRE_PMD"; |
| 783 | power = 0; |
| 784 | break; |
| 785 | case SND_SOC_DAPM_POST_PMD: |
| 786 | ev_name = "POST_PMD"; |
| 787 | power = 0; |
| 788 | break; |
| 789 | default: |
| 790 | BUG(); |
| 791 | return; |
| 792 | } |
| 793 | |
| 794 | if (w->power != power) |
| 795 | return; |
| 796 | |
| 797 | if (w->event && (w->event_flags & event)) { |
| 798 | pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s\n", |
| 799 | w->name, ev_name); |
Mark Brown | 84e9093 | 2010-11-04 00:07:02 -0400 | [diff] [blame] | 800 | trace_snd_soc_dapm_widget_event_start(w, event); |
Mark Brown | 68f89ad | 2010-11-03 23:51:49 -0400 | [diff] [blame] | 801 | ret = w->event(w, NULL, event); |
Mark Brown | 84e9093 | 2010-11-04 00:07:02 -0400 | [diff] [blame] | 802 | trace_snd_soc_dapm_widget_event_done(w, event); |
Mark Brown | 68f89ad | 2010-11-03 23:51:49 -0400 | [diff] [blame] | 803 | if (ret < 0) |
| 804 | pr_err("%s: %s event failed: %d\n", |
| 805 | ev_name, w->name, ret); |
| 806 | } |
| 807 | } |
| 808 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 809 | /* Apply the coalesced changes from a DAPM sequence */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 810 | static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 811 | struct list_head *pending) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 812 | { |
Jarkko Nikula | 3a45b86 | 2010-11-05 20:35:21 +0200 | [diff] [blame] | 813 | struct snd_soc_card *card = dapm->card; |
Mark Brown | 68f89ad | 2010-11-03 23:51:49 -0400 | [diff] [blame] | 814 | struct snd_soc_dapm_widget *w; |
| 815 | int reg, power; |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 816 | unsigned int value = 0; |
| 817 | unsigned int mask = 0; |
| 818 | unsigned int cur_mask; |
| 819 | |
| 820 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, |
| 821 | power_list)->reg; |
| 822 | |
| 823 | list_for_each_entry(w, pending, power_list) { |
| 824 | cur_mask = 1 << w->shift; |
| 825 | BUG_ON(reg != w->reg); |
| 826 | |
| 827 | if (w->invert) |
| 828 | power = !w->power; |
| 829 | else |
| 830 | power = w->power; |
| 831 | |
| 832 | mask |= cur_mask; |
| 833 | if (power) |
| 834 | value |= cur_mask; |
| 835 | |
Jarkko Nikula | fd8d3bc | 2010-11-09 14:40:28 +0200 | [diff] [blame] | 836 | pop_dbg(dapm->dev, card->pop_time, |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 837 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
| 838 | w->name, reg, value, mask); |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 839 | |
Mark Brown | 68f89ad | 2010-11-03 23:51:49 -0400 | [diff] [blame] | 840 | /* Check for events */ |
| 841 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); |
| 842 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 843 | } |
| 844 | |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 845 | if (reg >= 0) { |
Jarkko Nikula | fd8d3bc | 2010-11-09 14:40:28 +0200 | [diff] [blame] | 846 | pop_dbg(dapm->dev, card->pop_time, |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 847 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
Jarkko Nikula | 3a45b86 | 2010-11-05 20:35:21 +0200 | [diff] [blame] | 848 | value, mask, reg, card->pop_time); |
| 849 | pop_wait(card->pop_time); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 850 | snd_soc_update_bits(dapm->codec, reg, mask, value); |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 851 | } |
| 852 | |
| 853 | list_for_each_entry(w, pending, power_list) { |
Mark Brown | 68f89ad | 2010-11-03 23:51:49 -0400 | [diff] [blame] | 854 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); |
| 855 | dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 856 | } |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 857 | } |
| 858 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 859 | /* Apply a DAPM power sequence. |
| 860 | * |
| 861 | * We walk over a pre-sorted list of widgets to apply power to. In |
| 862 | * order to minimise the number of writes to the device required |
| 863 | * multiple widgets will be updated in a single write where possible. |
| 864 | * Currently anything that requires more than a single write is not |
| 865 | * handled. |
| 866 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 867 | static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
| 868 | struct list_head *list, int event, int sort[]) |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 869 | { |
| 870 | struct snd_soc_dapm_widget *w, *n; |
| 871 | LIST_HEAD(pending); |
| 872 | int cur_sort = -1; |
| 873 | int cur_reg = SND_SOC_NOPM; |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 874 | struct snd_soc_dapm_context *cur_dapm = NULL; |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 875 | int ret; |
| 876 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 877 | list_for_each_entry_safe(w, n, list, power_list) { |
| 878 | ret = 0; |
| 879 | |
| 880 | /* Do we need to apply any queued changes? */ |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 881 | if (sort[w->id] != cur_sort || w->reg != cur_reg || |
| 882 | w->dapm != cur_dapm) { |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 883 | if (!list_empty(&pending)) |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 884 | dapm_seq_run_coalesced(cur_dapm, &pending); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 885 | |
| 886 | INIT_LIST_HEAD(&pending); |
| 887 | cur_sort = -1; |
| 888 | cur_reg = SND_SOC_NOPM; |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 889 | cur_dapm = NULL; |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 890 | } |
| 891 | |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 892 | switch (w->id) { |
| 893 | case snd_soc_dapm_pre: |
| 894 | if (!w->event) |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 895 | list_for_each_entry_safe_continue(w, n, list, |
| 896 | power_list); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 897 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 898 | if (event == SND_SOC_DAPM_STREAM_START) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 899 | ret = w->event(w, |
| 900 | NULL, SND_SOC_DAPM_PRE_PMU); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 901 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 902 | ret = w->event(w, |
| 903 | NULL, SND_SOC_DAPM_PRE_PMD); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 904 | break; |
| 905 | |
| 906 | case snd_soc_dapm_post: |
| 907 | if (!w->event) |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 908 | list_for_each_entry_safe_continue(w, n, list, |
| 909 | power_list); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 910 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 911 | if (event == SND_SOC_DAPM_STREAM_START) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 912 | ret = w->event(w, |
| 913 | NULL, SND_SOC_DAPM_POST_PMU); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 914 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 915 | ret = w->event(w, |
| 916 | NULL, SND_SOC_DAPM_POST_PMD); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 917 | break; |
| 918 | |
| 919 | case snd_soc_dapm_input: |
| 920 | case snd_soc_dapm_output: |
| 921 | case snd_soc_dapm_hp: |
| 922 | case snd_soc_dapm_mic: |
| 923 | case snd_soc_dapm_line: |
| 924 | case snd_soc_dapm_spk: |
| 925 | /* No register support currently */ |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 926 | ret = dapm_generic_apply_power(w); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 927 | break; |
| 928 | |
| 929 | default: |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 930 | /* Queue it up for application */ |
| 931 | cur_sort = sort[w->id]; |
| 932 | cur_reg = w->reg; |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 933 | cur_dapm = w->dapm; |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 934 | list_move(&w->power_list, &pending); |
| 935 | break; |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 936 | } |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 937 | |
| 938 | if (ret < 0) |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 939 | dev_err(w->dapm->dev, |
| 940 | "Failed to apply widget power: %d\n", ret); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 941 | } |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 942 | |
| 943 | if (!list_empty(&pending)) |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 944 | dapm_seq_run_coalesced(dapm, &pending); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 945 | } |
| 946 | |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 947 | static void dapm_widget_update(struct snd_soc_dapm_context *dapm) |
| 948 | { |
| 949 | struct snd_soc_dapm_update *update = dapm->update; |
| 950 | struct snd_soc_dapm_widget *w; |
| 951 | int ret; |
| 952 | |
| 953 | if (!update) |
| 954 | return; |
| 955 | |
| 956 | w = update->widget; |
| 957 | |
| 958 | if (w->event && |
| 959 | (w->event_flags & SND_SOC_DAPM_PRE_REG)) { |
| 960 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); |
| 961 | if (ret != 0) |
| 962 | pr_err("%s DAPM pre-event failed: %d\n", |
| 963 | w->name, ret); |
| 964 | } |
| 965 | |
| 966 | ret = snd_soc_update_bits(w->codec, update->reg, update->mask, |
| 967 | update->val); |
| 968 | if (ret < 0) |
| 969 | pr_err("%s DAPM update failed: %d\n", w->name, ret); |
| 970 | |
| 971 | if (w->event && |
| 972 | (w->event_flags & SND_SOC_DAPM_POST_REG)) { |
| 973 | ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); |
| 974 | if (ret != 0) |
| 975 | pr_err("%s DAPM post-event failed: %d\n", |
| 976 | w->name, ret); |
| 977 | } |
| 978 | } |
| 979 | |
| 980 | |
| 981 | |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 982 | /* |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 983 | * Scan each dapm widget for complete audio path. |
| 984 | * A complete path is a route that has valid endpoints i.e.:- |
| 985 | * |
| 986 | * o DAC to output pin. |
| 987 | * o Input Pin to ADC. |
| 988 | * o Input pin to Output pin (bypass, sidetone) |
| 989 | * o DAC to ADC (loopback). |
| 990 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 991 | static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 992 | { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 993 | struct snd_soc_card *card = dapm->codec->card; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 994 | struct snd_soc_dapm_widget *w; |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 995 | struct snd_soc_dapm_context *d; |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 996 | LIST_HEAD(up_list); |
| 997 | LIST_HEAD(down_list); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 998 | int ret = 0; |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 999 | int power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1000 | |
Mark Brown | 84e9093 | 2010-11-04 00:07:02 -0400 | [diff] [blame] | 1001 | trace_snd_soc_dapm_start(card); |
| 1002 | |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1003 | list_for_each_entry(d, &card->dapm_list, list) |
| 1004 | if (d->n_widgets) |
| 1005 | d->dev_power = 0; |
| 1006 | |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1007 | /* Check which widgets we need to power and store them in |
| 1008 | * lists indicating if they should be powered up or down. |
| 1009 | */ |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1010 | list_for_each_entry(w, &card->widgets, list) { |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1011 | switch (w->id) { |
| 1012 | case snd_soc_dapm_pre: |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 1013 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1014 | break; |
| 1015 | case snd_soc_dapm_post: |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 1016 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1017 | break; |
| 1018 | |
| 1019 | default: |
| 1020 | if (!w->power_check) |
| 1021 | continue; |
| 1022 | |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 1023 | if (!w->force) |
Mark Brown | 50b6bce | 2009-11-23 13:11:53 +0000 | [diff] [blame] | 1024 | power = w->power_check(w); |
Mark Brown | 9949788 | 2010-05-07 20:24:05 +0100 | [diff] [blame] | 1025 | else |
| 1026 | power = 1; |
| 1027 | if (power) |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1028 | w->dapm->dev_power = 1; |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 1029 | |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1030 | if (w->power == power) |
| 1031 | continue; |
| 1032 | |
Mark Brown | 84e9093 | 2010-11-04 00:07:02 -0400 | [diff] [blame] | 1033 | trace_snd_soc_dapm_widget_power(w, power); |
| 1034 | |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1035 | if (power) |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 1036 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1037 | else |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 1038 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1039 | |
| 1040 | w->power = power; |
| 1041 | break; |
| 1042 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1043 | } |
| 1044 | |
Mark Brown | b14b76a | 2009-08-17 11:55:38 +0100 | [diff] [blame] | 1045 | /* If there are no DAPM widgets then try to figure out power from the |
| 1046 | * event type. |
| 1047 | */ |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1048 | if (!dapm->n_widgets) { |
Mark Brown | b14b76a | 2009-08-17 11:55:38 +0100 | [diff] [blame] | 1049 | switch (event) { |
| 1050 | case SND_SOC_DAPM_STREAM_START: |
| 1051 | case SND_SOC_DAPM_STREAM_RESUME: |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1052 | dapm->dev_power = 1; |
Mark Brown | b14b76a | 2009-08-17 11:55:38 +0100 | [diff] [blame] | 1053 | break; |
Jarkko Nikula | 862af8a | 2010-12-10 20:53:55 +0200 | [diff] [blame] | 1054 | case SND_SOC_DAPM_STREAM_STOP: |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1055 | dapm->dev_power = !!dapm->codec->active; |
Jarkko Nikula | 862af8a | 2010-12-10 20:53:55 +0200 | [diff] [blame] | 1056 | break; |
Mark Brown | 50b6bce | 2009-11-23 13:11:53 +0000 | [diff] [blame] | 1057 | case SND_SOC_DAPM_STREAM_SUSPEND: |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1058 | dapm->dev_power = 0; |
Mark Brown | 50b6bce | 2009-11-23 13:11:53 +0000 | [diff] [blame] | 1059 | break; |
Mark Brown | b14b76a | 2009-08-17 11:55:38 +0100 | [diff] [blame] | 1060 | case SND_SOC_DAPM_STREAM_NOP: |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1061 | switch (dapm->bias_level) { |
Mark Brown | a96ca33 | 2010-01-19 22:49:43 +0000 | [diff] [blame] | 1062 | case SND_SOC_BIAS_STANDBY: |
| 1063 | case SND_SOC_BIAS_OFF: |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1064 | dapm->dev_power = 0; |
Mark Brown | a96ca33 | 2010-01-19 22:49:43 +0000 | [diff] [blame] | 1065 | break; |
| 1066 | default: |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1067 | dapm->dev_power = 1; |
Mark Brown | a96ca33 | 2010-01-19 22:49:43 +0000 | [diff] [blame] | 1068 | break; |
| 1069 | } |
Mark Brown | 50b6bce | 2009-11-23 13:11:53 +0000 | [diff] [blame] | 1070 | break; |
Mark Brown | b14b76a | 2009-08-17 11:55:38 +0100 | [diff] [blame] | 1071 | default: |
| 1072 | break; |
| 1073 | } |
| 1074 | } |
| 1075 | |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1076 | list_for_each_entry(d, &dapm->card->dapm_list, list) { |
| 1077 | if (d->dev_power && d->bias_level == SND_SOC_BIAS_OFF) { |
| 1078 | ret = snd_soc_dapm_set_bias_level(card, d, |
| 1079 | SND_SOC_BIAS_STANDBY); |
| 1080 | if (ret != 0) |
| 1081 | dev_err(d->dev, |
| 1082 | "Failed to turn on bias: %d\n", ret); |
| 1083 | } |
Mark Brown | a96ca33 | 2010-01-19 22:49:43 +0000 | [diff] [blame] | 1084 | |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1085 | /* If we're changing to all on or all off then prepare */ |
| 1086 | if ((d->dev_power && d->bias_level == SND_SOC_BIAS_STANDBY) || |
| 1087 | (!d->dev_power && d->bias_level == SND_SOC_BIAS_ON)) { |
| 1088 | ret = snd_soc_dapm_set_bias_level(card, d, |
| 1089 | SND_SOC_BIAS_PREPARE); |
| 1090 | if (ret != 0) |
| 1091 | dev_err(d->dev, |
| 1092 | "Failed to prepare bias: %d\n", ret); |
| 1093 | } |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 1094 | } |
| 1095 | |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1096 | /* Power down widgets first; try to avoid amplifying pops. */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1097 | dapm_seq_run(dapm, &down_list, event, dapm_down_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1098 | |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1099 | dapm_widget_update(dapm); |
| 1100 | |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1101 | /* Now power up. */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1102 | dapm_seq_run(dapm, &up_list, event, dapm_up_seq); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1103 | |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1104 | list_for_each_entry(d, &dapm->card->dapm_list, list) { |
| 1105 | /* If we just powered the last thing off drop to standby bias */ |
| 1106 | if (d->bias_level == SND_SOC_BIAS_PREPARE && !d->dev_power) { |
| 1107 | ret = snd_soc_dapm_set_bias_level(card, d, |
| 1108 | SND_SOC_BIAS_STANDBY); |
| 1109 | if (ret != 0) |
| 1110 | dev_err(d->dev, |
| 1111 | "Failed to apply standby bias: %d\n", |
| 1112 | ret); |
| 1113 | } |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 1114 | |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1115 | /* If we're in standby and can support bias off then do that */ |
| 1116 | if (d->bias_level == SND_SOC_BIAS_STANDBY && |
| 1117 | d->idle_bias_off) { |
| 1118 | ret = snd_soc_dapm_set_bias_level(card, d, |
| 1119 | SND_SOC_BIAS_OFF); |
| 1120 | if (ret != 0) |
| 1121 | dev_err(d->dev, |
| 1122 | "Failed to turn off bias: %d\n", ret); |
| 1123 | } |
Mark Brown | a96ca33 | 2010-01-19 22:49:43 +0000 | [diff] [blame] | 1124 | |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 1125 | /* If we just powered up then move to active bias */ |
| 1126 | if (d->bias_level == SND_SOC_BIAS_PREPARE && d->dev_power) { |
| 1127 | ret = snd_soc_dapm_set_bias_level(card, d, |
| 1128 | SND_SOC_BIAS_ON); |
| 1129 | if (ret != 0) |
| 1130 | dev_err(d->dev, |
| 1131 | "Failed to apply active bias: %d\n", |
| 1132 | ret); |
| 1133 | } |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 1134 | } |
| 1135 | |
Jarkko Nikula | fd8d3bc | 2010-11-09 14:40:28 +0200 | [diff] [blame] | 1136 | pop_dbg(dapm->dev, card->pop_time, |
| 1137 | "DAPM sequencing finished, waiting %dms\n", card->pop_time); |
Jarkko Nikula | 3a45b86 | 2010-11-05 20:35:21 +0200 | [diff] [blame] | 1138 | pop_wait(card->pop_time); |
Mark Brown | cb507e7 | 2009-07-08 18:54:57 +0100 | [diff] [blame] | 1139 | |
Mark Brown | 84e9093 | 2010-11-04 00:07:02 -0400 | [diff] [blame] | 1140 | trace_snd_soc_dapm_done(card); |
| 1141 | |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 1142 | return 0; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1143 | } |
| 1144 | |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1145 | #ifdef CONFIG_DEBUG_FS |
| 1146 | static int dapm_widget_power_open_file(struct inode *inode, struct file *file) |
| 1147 | { |
| 1148 | file->private_data = inode->i_private; |
| 1149 | return 0; |
| 1150 | } |
| 1151 | |
| 1152 | static ssize_t dapm_widget_power_read_file(struct file *file, |
| 1153 | char __user *user_buf, |
| 1154 | size_t count, loff_t *ppos) |
| 1155 | { |
| 1156 | struct snd_soc_dapm_widget *w = file->private_data; |
| 1157 | char *buf; |
| 1158 | int in, out; |
| 1159 | ssize_t ret; |
| 1160 | struct snd_soc_dapm_path *p = NULL; |
| 1161 | |
| 1162 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
| 1163 | if (!buf) |
| 1164 | return -ENOMEM; |
| 1165 | |
| 1166 | in = is_connected_input_ep(w); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1167 | dapm_clear_walk(w->dapm); |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1168 | out = is_connected_output_ep(w); |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1169 | dapm_clear_walk(w->dapm); |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1170 | |
Mark Brown | d033c36 | 2009-12-04 15:25:56 +0000 | [diff] [blame] | 1171 | ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1172 | w->name, w->power ? "On" : "Off", in, out); |
| 1173 | |
Mark Brown | d033c36 | 2009-12-04 15:25:56 +0000 | [diff] [blame] | 1174 | if (w->reg >= 0) |
| 1175 | ret += snprintf(buf + ret, PAGE_SIZE - ret, |
| 1176 | " - R%d(0x%x) bit %d", |
| 1177 | w->reg, w->reg, w->shift); |
| 1178 | |
| 1179 | ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); |
| 1180 | |
Mark Brown | 3eef08b | 2009-09-14 16:49:00 +0100 | [diff] [blame] | 1181 | if (w->sname) |
| 1182 | ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", |
| 1183 | w->sname, |
| 1184 | w->active ? "active" : "inactive"); |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1185 | |
| 1186 | list_for_each_entry(p, &w->sources, list_sink) { |
Mark Brown | 215edda | 2009-09-08 18:59:05 +0100 | [diff] [blame] | 1187 | if (p->connected && !p->connected(w, p->sink)) |
| 1188 | continue; |
| 1189 | |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1190 | if (p->connect) |
| 1191 | ret += snprintf(buf + ret, PAGE_SIZE - ret, |
| 1192 | " in %s %s\n", |
| 1193 | p->name ? p->name : "static", |
| 1194 | p->source->name); |
| 1195 | } |
| 1196 | list_for_each_entry(p, &w->sinks, list_source) { |
Mark Brown | 215edda | 2009-09-08 18:59:05 +0100 | [diff] [blame] | 1197 | if (p->connected && !p->connected(w, p->sink)) |
| 1198 | continue; |
| 1199 | |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1200 | if (p->connect) |
| 1201 | ret += snprintf(buf + ret, PAGE_SIZE - ret, |
| 1202 | " out %s %s\n", |
| 1203 | p->name ? p->name : "static", |
| 1204 | p->sink->name); |
| 1205 | } |
| 1206 | |
| 1207 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); |
| 1208 | |
| 1209 | kfree(buf); |
| 1210 | return ret; |
| 1211 | } |
| 1212 | |
| 1213 | static const struct file_operations dapm_widget_power_fops = { |
| 1214 | .open = dapm_widget_power_open_file, |
| 1215 | .read = dapm_widget_power_read_file, |
Arnd Bergmann | 6038f37 | 2010-08-15 18:52:59 +0200 | [diff] [blame] | 1216 | .llseek = default_llseek, |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1217 | }; |
| 1218 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1219 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1220 | { |
| 1221 | struct snd_soc_dapm_widget *w; |
| 1222 | struct dentry *d; |
| 1223 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1224 | if (!dapm->debugfs_dapm) |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1225 | return; |
| 1226 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1227 | list_for_each_entry(w, &dapm->card->widgets, list) { |
| 1228 | if (!w->name || w->dapm != dapm) |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1229 | continue; |
| 1230 | |
| 1231 | d = debugfs_create_file(w->name, 0444, |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1232 | dapm->debugfs_dapm, w, |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1233 | &dapm_widget_power_fops); |
| 1234 | if (!d) |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 1235 | dev_warn(w->dapm->dev, |
| 1236 | "ASoC: Failed to create %s debugfs file\n", |
| 1237 | w->name); |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1238 | } |
| 1239 | } |
| 1240 | #else |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1241 | void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm) |
Mark Brown | 79fb938 | 2009-08-21 16:38:13 +0100 | [diff] [blame] | 1242 | { |
| 1243 | } |
| 1244 | #endif |
| 1245 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1246 | /* test and update the power status of a mux widget */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 1247 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
Mark Brown | 3a65577 | 2009-10-05 17:23:30 +0100 | [diff] [blame] | 1248 | struct snd_kcontrol *kcontrol, int change, |
| 1249 | int mux, struct soc_enum *e) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1250 | { |
| 1251 | struct snd_soc_dapm_path *path; |
| 1252 | int found = 0; |
| 1253 | |
Peter Ujfalusi | eff317d | 2009-01-15 14:40:47 +0200 | [diff] [blame] | 1254 | if (widget->id != snd_soc_dapm_mux && |
Dimitris Papastamos | 24ff33a | 2010-12-16 15:53:39 +0000 | [diff] [blame] | 1255 | widget->id != snd_soc_dapm_virt_mux && |
Peter Ujfalusi | eff317d | 2009-01-15 14:40:47 +0200 | [diff] [blame] | 1256 | widget->id != snd_soc_dapm_value_mux) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1257 | return -ENODEV; |
| 1258 | |
Mark Brown | 3a65577 | 2009-10-05 17:23:30 +0100 | [diff] [blame] | 1259 | if (!change) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1260 | return 0; |
| 1261 | |
| 1262 | /* find dapm widget path assoc with kcontrol */ |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 1263 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1264 | if (path->kcontrol != kcontrol) |
| 1265 | continue; |
| 1266 | |
Richard Zhao | cb01e2b | 2008-10-07 08:05:20 +0800 | [diff] [blame] | 1267 | if (!path->name || !e->texts[mux]) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1268 | continue; |
| 1269 | |
| 1270 | found = 1; |
| 1271 | /* we now need to match the string in the enum to the path */ |
Richard Zhao | cb01e2b | 2008-10-07 08:05:20 +0800 | [diff] [blame] | 1272 | if (!(strcmp(path->name, e->texts[mux]))) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1273 | path->connect = 1; /* new connection */ |
| 1274 | else |
| 1275 | path->connect = 0; /* old connection must be powered down */ |
| 1276 | } |
| 1277 | |
Mark Brown | b91b8fa | 2010-01-20 18:18:35 +0000 | [diff] [blame] | 1278 | if (found) |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1279 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1280 | |
| 1281 | return 0; |
| 1282 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1283 | |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 1284 | /* test and update the power status of a mixer or switch widget */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 1285 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
Mark Brown | 283375c | 2009-12-07 18:09:03 +0000 | [diff] [blame] | 1286 | struct snd_kcontrol *kcontrol, int connect) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1287 | { |
| 1288 | struct snd_soc_dapm_path *path; |
| 1289 | int found = 0; |
| 1290 | |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 1291 | if (widget->id != snd_soc_dapm_mixer && |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1292 | widget->id != snd_soc_dapm_mixer_named_ctl && |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 1293 | widget->id != snd_soc_dapm_switch) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1294 | return -ENODEV; |
| 1295 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1296 | /* find dapm widget path assoc with kcontrol */ |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 1297 | list_for_each_entry(path, &widget->dapm->card->paths, list) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1298 | if (path->kcontrol != kcontrol) |
| 1299 | continue; |
| 1300 | |
| 1301 | /* found, now check type */ |
| 1302 | found = 1; |
Mark Brown | 283375c | 2009-12-07 18:09:03 +0000 | [diff] [blame] | 1303 | path->connect = connect; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1304 | break; |
| 1305 | } |
| 1306 | |
Mark Brown | b91b8fa | 2010-01-20 18:18:35 +0000 | [diff] [blame] | 1307 | if (found) |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1308 | dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1309 | |
| 1310 | return 0; |
| 1311 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1312 | |
| 1313 | /* show dapm widget status in sys fs */ |
| 1314 | static ssize_t dapm_widget_show(struct device *dev, |
| 1315 | struct device_attribute *attr, char *buf) |
| 1316 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 1317 | struct snd_soc_pcm_runtime *rtd = |
| 1318 | container_of(dev, struct snd_soc_pcm_runtime, dev); |
| 1319 | struct snd_soc_codec *codec =rtd->codec; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1320 | struct snd_soc_dapm_widget *w; |
| 1321 | int count = 0; |
| 1322 | char *state = "not set"; |
| 1323 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1324 | list_for_each_entry(w, &codec->card->widgets, list) { |
| 1325 | if (w->dapm != &codec->dapm) |
| 1326 | continue; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1327 | |
| 1328 | /* only display widgets that burnm power */ |
| 1329 | switch (w->id) { |
| 1330 | case snd_soc_dapm_hp: |
| 1331 | case snd_soc_dapm_mic: |
| 1332 | case snd_soc_dapm_spk: |
| 1333 | case snd_soc_dapm_line: |
| 1334 | case snd_soc_dapm_micbias: |
| 1335 | case snd_soc_dapm_dac: |
| 1336 | case snd_soc_dapm_adc: |
| 1337 | case snd_soc_dapm_pga: |
Olaya, Margarita | d88429a | 2010-12-10 21:11:44 -0600 | [diff] [blame] | 1338 | case snd_soc_dapm_out_drv: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1339 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1340 | case snd_soc_dapm_mixer_named_ctl: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 1341 | case snd_soc_dapm_supply: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1342 | if (w->name) |
| 1343 | count += sprintf(buf + count, "%s: %s\n", |
| 1344 | w->name, w->power ? "On":"Off"); |
| 1345 | break; |
| 1346 | default: |
| 1347 | break; |
| 1348 | } |
| 1349 | } |
| 1350 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1351 | switch (codec->dapm.bias_level) { |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1352 | case SND_SOC_BIAS_ON: |
| 1353 | state = "On"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1354 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1355 | case SND_SOC_BIAS_PREPARE: |
| 1356 | state = "Prepare"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1357 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1358 | case SND_SOC_BIAS_STANDBY: |
| 1359 | state = "Standby"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1360 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1361 | case SND_SOC_BIAS_OFF: |
| 1362 | state = "Off"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1363 | break; |
| 1364 | } |
| 1365 | count += sprintf(buf + count, "PM State: %s\n", state); |
| 1366 | |
| 1367 | return count; |
| 1368 | } |
| 1369 | |
| 1370 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
| 1371 | |
| 1372 | int snd_soc_dapm_sys_add(struct device *dev) |
| 1373 | { |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 1374 | return device_create_file(dev, &dev_attr_dapm_widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1375 | } |
| 1376 | |
| 1377 | static void snd_soc_dapm_sys_remove(struct device *dev) |
| 1378 | { |
Mark Brown | aef9084 | 2009-05-16 17:53:16 +0100 | [diff] [blame] | 1379 | device_remove_file(dev, &dev_attr_dapm_widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1380 | } |
| 1381 | |
| 1382 | /* free all dapm widgets and resources */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1383 | static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1384 | { |
| 1385 | struct snd_soc_dapm_widget *w, *next_w; |
| 1386 | struct snd_soc_dapm_path *p, *next_p; |
| 1387 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1388 | list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { |
| 1389 | if (w->dapm != dapm) |
| 1390 | continue; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1391 | list_del(&w->list); |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 1392 | /* |
| 1393 | * remove source and sink paths associated to this widget. |
| 1394 | * While removing the path, remove reference to it from both |
| 1395 | * source and sink widgets so that path is removed only once. |
| 1396 | */ |
| 1397 | list_for_each_entry_safe(p, next_p, &w->sources, list_sink) { |
| 1398 | list_del(&p->list_sink); |
| 1399 | list_del(&p->list_source); |
| 1400 | list_del(&p->list); |
| 1401 | kfree(p->long_name); |
| 1402 | kfree(p); |
| 1403 | } |
| 1404 | list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { |
| 1405 | list_del(&p->list_sink); |
| 1406 | list_del(&p->list_source); |
| 1407 | list_del(&p->list); |
| 1408 | kfree(p->long_name); |
| 1409 | kfree(p); |
| 1410 | } |
Jarkko Nikula | ead9b91 | 2010-11-13 20:40:44 +0200 | [diff] [blame] | 1411 | kfree(w->name); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1412 | kfree(w); |
| 1413 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1414 | } |
| 1415 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1416 | static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 1417 | const char *pin, int status) |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1418 | { |
| 1419 | struct snd_soc_dapm_widget *w; |
| 1420 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1421 | list_for_each_entry(w, &dapm->card->widgets, list) { |
| 1422 | if (w->dapm != dapm) |
| 1423 | continue; |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1424 | if (!strcmp(w->name, pin)) { |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 1425 | dev_dbg(w->dapm->dev, "dapm: pin %s = %d\n", |
| 1426 | pin, status); |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1427 | w->connected = status; |
Mark Brown | 5b9e87c | 2010-03-22 13:36:13 +0000 | [diff] [blame] | 1428 | /* Allow disabling of forced pins */ |
| 1429 | if (status == 0) |
| 1430 | w->force = 0; |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1431 | return 0; |
| 1432 | } |
| 1433 | } |
| 1434 | |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 1435 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1436 | return -EINVAL; |
| 1437 | } |
| 1438 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1439 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1440 | * snd_soc_dapm_sync - scan and power dapm paths |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1441 | * @dapm: DAPM context |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1442 | * |
| 1443 | * Walks all dapm audio paths and powers widgets according to their |
| 1444 | * stream or path usage. |
| 1445 | * |
| 1446 | * Returns 0 for success. |
| 1447 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1448 | int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1449 | { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1450 | return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1451 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1452 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1453 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1454 | static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
Mark Brown | 215edda | 2009-09-08 18:59:05 +0100 | [diff] [blame] | 1455 | const struct snd_soc_dapm_route *route) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1456 | { |
| 1457 | struct snd_soc_dapm_path *path; |
| 1458 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1459 | struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
Jarkko Nikula | ead9b91 | 2010-11-13 20:40:44 +0200 | [diff] [blame] | 1460 | const char *sink; |
Mark Brown | 215edda | 2009-09-08 18:59:05 +0100 | [diff] [blame] | 1461 | const char *control = route->control; |
Jarkko Nikula | ead9b91 | 2010-11-13 20:40:44 +0200 | [diff] [blame] | 1462 | const char *source; |
| 1463 | char prefixed_sink[80]; |
| 1464 | char prefixed_source[80]; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1465 | int ret = 0; |
| 1466 | |
Jarkko Nikula | ead9b91 | 2010-11-13 20:40:44 +0200 | [diff] [blame] | 1467 | if (dapm->codec->name_prefix) { |
| 1468 | snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", |
| 1469 | dapm->codec->name_prefix, route->sink); |
| 1470 | sink = prefixed_sink; |
| 1471 | snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", |
| 1472 | dapm->codec->name_prefix, route->source); |
| 1473 | source = prefixed_source; |
| 1474 | } else { |
| 1475 | sink = route->sink; |
| 1476 | source = route->source; |
| 1477 | } |
| 1478 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1479 | /* |
| 1480 | * find src and dest widgets over all widgets but favor a widget from |
| 1481 | * current DAPM context |
| 1482 | */ |
| 1483 | list_for_each_entry(w, &dapm->card->widgets, list) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1484 | if (!wsink && !(strcmp(w->name, sink))) { |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1485 | wtsink = w; |
| 1486 | if (w->dapm == dapm) |
| 1487 | wsink = w; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1488 | continue; |
| 1489 | } |
| 1490 | if (!wsource && !(strcmp(w->name, source))) { |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1491 | wtsource = w; |
| 1492 | if (w->dapm == dapm) |
| 1493 | wsource = w; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1494 | } |
| 1495 | } |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1496 | /* use widget from another DAPM context if not found from this */ |
| 1497 | if (!wsink) |
| 1498 | wsink = wtsink; |
| 1499 | if (!wsource) |
| 1500 | wsource = wtsource; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1501 | |
| 1502 | if (wsource == NULL || wsink == NULL) |
| 1503 | return -ENODEV; |
| 1504 | |
| 1505 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
| 1506 | if (!path) |
| 1507 | return -ENOMEM; |
| 1508 | |
| 1509 | path->source = wsource; |
| 1510 | path->sink = wsink; |
Mark Brown | 215edda | 2009-09-08 18:59:05 +0100 | [diff] [blame] | 1511 | path->connected = route->connected; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1512 | INIT_LIST_HEAD(&path->list); |
| 1513 | INIT_LIST_HEAD(&path->list_source); |
| 1514 | INIT_LIST_HEAD(&path->list_sink); |
| 1515 | |
| 1516 | /* check for external widgets */ |
| 1517 | if (wsink->id == snd_soc_dapm_input) { |
| 1518 | if (wsource->id == snd_soc_dapm_micbias || |
| 1519 | wsource->id == snd_soc_dapm_mic || |
Rongrong Cao | 087d53a | 2009-07-10 20:13:30 +0100 | [diff] [blame] | 1520 | wsource->id == snd_soc_dapm_line || |
| 1521 | wsource->id == snd_soc_dapm_output) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1522 | wsink->ext = 1; |
| 1523 | } |
| 1524 | if (wsource->id == snd_soc_dapm_output) { |
| 1525 | if (wsink->id == snd_soc_dapm_spk || |
| 1526 | wsink->id == snd_soc_dapm_hp || |
Seth Forshee | 1e39221 | 2007-04-16 15:36:42 +0200 | [diff] [blame] | 1527 | wsink->id == snd_soc_dapm_line || |
| 1528 | wsink->id == snd_soc_dapm_input) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1529 | wsource->ext = 1; |
| 1530 | } |
| 1531 | |
| 1532 | /* connect static paths */ |
| 1533 | if (control == NULL) { |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 1534 | list_add(&path->list, &dapm->card->paths); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1535 | list_add(&path->list_sink, &wsink->sources); |
| 1536 | list_add(&path->list_source, &wsource->sinks); |
| 1537 | path->connect = 1; |
| 1538 | return 0; |
| 1539 | } |
| 1540 | |
| 1541 | /* connect dynamic paths */ |
| 1542 | switch(wsink->id) { |
| 1543 | case snd_soc_dapm_adc: |
| 1544 | case snd_soc_dapm_dac: |
| 1545 | case snd_soc_dapm_pga: |
Olaya, Margarita | d88429a | 2010-12-10 21:11:44 -0600 | [diff] [blame] | 1546 | case snd_soc_dapm_out_drv: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1547 | case snd_soc_dapm_input: |
| 1548 | case snd_soc_dapm_output: |
| 1549 | case snd_soc_dapm_micbias: |
| 1550 | case snd_soc_dapm_vmid: |
| 1551 | case snd_soc_dapm_pre: |
| 1552 | case snd_soc_dapm_post: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 1553 | case snd_soc_dapm_supply: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 1554 | case snd_soc_dapm_aif_in: |
| 1555 | case snd_soc_dapm_aif_out: |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 1556 | list_add(&path->list, &dapm->card->paths); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1557 | list_add(&path->list_sink, &wsink->sources); |
| 1558 | list_add(&path->list_source, &wsource->sinks); |
| 1559 | path->connect = 1; |
| 1560 | return 0; |
| 1561 | case snd_soc_dapm_mux: |
Dimitris Papastamos | 24ff33a | 2010-12-16 15:53:39 +0000 | [diff] [blame] | 1562 | case snd_soc_dapm_virt_mux: |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1563 | case snd_soc_dapm_value_mux: |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1564 | ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1565 | &wsink->kcontrols[0]); |
| 1566 | if (ret != 0) |
| 1567 | goto err; |
| 1568 | break; |
| 1569 | case snd_soc_dapm_switch: |
| 1570 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1571 | case snd_soc_dapm_mixer_named_ctl: |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1572 | ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1573 | if (ret != 0) |
| 1574 | goto err; |
| 1575 | break; |
| 1576 | case snd_soc_dapm_hp: |
| 1577 | case snd_soc_dapm_mic: |
| 1578 | case snd_soc_dapm_line: |
| 1579 | case snd_soc_dapm_spk: |
Jarkko Nikula | 8ddab3f | 2010-12-14 12:18:30 +0200 | [diff] [blame] | 1580 | list_add(&path->list, &dapm->card->paths); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1581 | list_add(&path->list_sink, &wsink->sources); |
| 1582 | list_add(&path->list_source, &wsource->sinks); |
| 1583 | path->connect = 0; |
| 1584 | return 0; |
| 1585 | } |
| 1586 | return 0; |
| 1587 | |
| 1588 | err: |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 1589 | dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s\n", |
| 1590 | source, control, sink); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1591 | kfree(path); |
| 1592 | return ret; |
| 1593 | } |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1594 | |
| 1595 | /** |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1596 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1597 | * @dapm: DAPM context |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1598 | * @route: audio routes |
| 1599 | * @num: number of routes |
| 1600 | * |
| 1601 | * Connects 2 dapm widgets together via a named audio path. The sink is |
| 1602 | * the widget receiving the audio signal, whilst the source is the sender |
| 1603 | * of the audio signal. |
| 1604 | * |
| 1605 | * Returns 0 for success else error. On error all resources can be freed |
| 1606 | * with a call to snd_soc_card_free(). |
| 1607 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1608 | int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1609 | const struct snd_soc_dapm_route *route, int num) |
| 1610 | { |
| 1611 | int i, ret; |
| 1612 | |
| 1613 | for (i = 0; i < num; i++) { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1614 | ret = snd_soc_dapm_add_route(dapm, route); |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1615 | if (ret < 0) { |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 1616 | dev_err(dapm->dev, "Failed to add route %s->%s\n", |
| 1617 | route->source, route->sink); |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1618 | return ret; |
| 1619 | } |
| 1620 | route++; |
| 1621 | } |
| 1622 | |
| 1623 | return 0; |
| 1624 | } |
| 1625 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); |
| 1626 | |
| 1627 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1628 | * snd_soc_dapm_new_widgets - add new dapm widgets |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1629 | * @dapm: DAPM context |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1630 | * |
| 1631 | * Checks the codec for any new dapm widgets and creates them if found. |
| 1632 | * |
| 1633 | * Returns 0 for success. |
| 1634 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1635 | int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1636 | { |
| 1637 | struct snd_soc_dapm_widget *w; |
Mark Brown | b66a70d | 2011-02-09 18:04:11 +0000 | [diff] [blame] | 1638 | unsigned int val; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1639 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 1640 | list_for_each_entry(w, &dapm->card->widgets, list) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1641 | { |
| 1642 | if (w->new) |
| 1643 | continue; |
| 1644 | |
| 1645 | switch(w->id) { |
| 1646 | case snd_soc_dapm_switch: |
| 1647 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1648 | case snd_soc_dapm_mixer_named_ctl: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1649 | w->power_check = dapm_generic_check_power; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1650 | dapm_new_mixer(dapm, w); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1651 | break; |
| 1652 | case snd_soc_dapm_mux: |
Dimitris Papastamos | 24ff33a | 2010-12-16 15:53:39 +0000 | [diff] [blame] | 1653 | case snd_soc_dapm_virt_mux: |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1654 | case snd_soc_dapm_value_mux: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1655 | w->power_check = dapm_generic_check_power; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1656 | dapm_new_mux(dapm, w); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1657 | break; |
| 1658 | case snd_soc_dapm_adc: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 1659 | case snd_soc_dapm_aif_out: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1660 | w->power_check = dapm_adc_check_power; |
| 1661 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1662 | case snd_soc_dapm_dac: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame] | 1663 | case snd_soc_dapm_aif_in: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1664 | w->power_check = dapm_dac_check_power; |
| 1665 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1666 | case snd_soc_dapm_pga: |
Olaya, Margarita | d88429a | 2010-12-10 21:11:44 -0600 | [diff] [blame] | 1667 | case snd_soc_dapm_out_drv: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1668 | w->power_check = dapm_generic_check_power; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1669 | dapm_new_pga(dapm, w); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1670 | break; |
| 1671 | case snd_soc_dapm_input: |
| 1672 | case snd_soc_dapm_output: |
| 1673 | case snd_soc_dapm_micbias: |
| 1674 | case snd_soc_dapm_spk: |
| 1675 | case snd_soc_dapm_hp: |
| 1676 | case snd_soc_dapm_mic: |
| 1677 | case snd_soc_dapm_line: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1678 | w->power_check = dapm_generic_check_power; |
| 1679 | break; |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 1680 | case snd_soc_dapm_supply: |
| 1681 | w->power_check = dapm_supply_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1682 | case snd_soc_dapm_vmid: |
| 1683 | case snd_soc_dapm_pre: |
| 1684 | case snd_soc_dapm_post: |
| 1685 | break; |
| 1686 | } |
Mark Brown | b66a70d | 2011-02-09 18:04:11 +0000 | [diff] [blame] | 1687 | |
| 1688 | /* Read the initial power state from the device */ |
| 1689 | if (w->reg >= 0) { |
| 1690 | val = snd_soc_read(w->codec, w->reg); |
| 1691 | val &= 1 << w->shift; |
| 1692 | if (w->invert) |
| 1693 | val = !val; |
| 1694 | |
| 1695 | if (val) |
| 1696 | w->power = 1; |
| 1697 | } |
| 1698 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1699 | w->new = 1; |
| 1700 | } |
| 1701 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 1702 | dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1703 | return 0; |
| 1704 | } |
| 1705 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); |
| 1706 | |
| 1707 | /** |
| 1708 | * snd_soc_dapm_get_volsw - dapm mixer get callback |
| 1709 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1710 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1711 | * |
| 1712 | * Callback to get the value of a dapm mixer control. |
| 1713 | * |
| 1714 | * Returns 0 for success. |
| 1715 | */ |
| 1716 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, |
| 1717 | struct snd_ctl_elem_value *ucontrol) |
| 1718 | { |
| 1719 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1720 | struct soc_mixer_control *mc = |
| 1721 | (struct soc_mixer_control *)kcontrol->private_value; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1722 | unsigned int reg = mc->reg; |
| 1723 | unsigned int shift = mc->shift; |
| 1724 | unsigned int rshift = mc->rshift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1725 | int max = mc->max; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1726 | unsigned int invert = mc->invert; |
| 1727 | unsigned int mask = (1 << fls(max)) - 1; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1728 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1729 | ucontrol->value.integer.value[0] = |
| 1730 | (snd_soc_read(widget->codec, reg) >> shift) & mask; |
| 1731 | if (shift != rshift) |
| 1732 | ucontrol->value.integer.value[1] = |
| 1733 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; |
| 1734 | if (invert) { |
| 1735 | ucontrol->value.integer.value[0] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1736 | max - ucontrol->value.integer.value[0]; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1737 | if (shift != rshift) |
| 1738 | ucontrol->value.integer.value[1] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1739 | max - ucontrol->value.integer.value[1]; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1740 | } |
| 1741 | |
| 1742 | return 0; |
| 1743 | } |
| 1744 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); |
| 1745 | |
| 1746 | /** |
| 1747 | * snd_soc_dapm_put_volsw - dapm mixer set callback |
| 1748 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1749 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1750 | * |
| 1751 | * Callback to set the value of a dapm mixer control. |
| 1752 | * |
| 1753 | * Returns 0 for success. |
| 1754 | */ |
| 1755 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, |
| 1756 | struct snd_ctl_elem_value *ucontrol) |
| 1757 | { |
| 1758 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1759 | struct soc_mixer_control *mc = |
| 1760 | (struct soc_mixer_control *)kcontrol->private_value; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1761 | unsigned int reg = mc->reg; |
| 1762 | unsigned int shift = mc->shift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1763 | int max = mc->max; |
Jon Smirl | 815ecf8 | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1764 | unsigned int mask = (1 << fls(max)) - 1; |
| 1765 | unsigned int invert = mc->invert; |
Stephen Warren | e9cf704 | 2011-01-27 14:54:05 -0700 | [diff] [blame] | 1766 | unsigned int val; |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1767 | int connect, change; |
| 1768 | struct snd_soc_dapm_update update; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1769 | |
| 1770 | val = (ucontrol->value.integer.value[0] & mask); |
| 1771 | |
| 1772 | if (invert) |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1773 | val = max - val; |
Stephen Warren | e9cf704 | 2011-01-27 14:54:05 -0700 | [diff] [blame] | 1774 | mask = mask << shift; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1775 | val = val << shift; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1776 | |
| 1777 | mutex_lock(&widget->codec->mutex); |
| 1778 | widget->value = val; |
| 1779 | |
Stephen Warren | e9cf704 | 2011-01-27 14:54:05 -0700 | [diff] [blame] | 1780 | change = snd_soc_test_bits(widget->codec, reg, mask, val); |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1781 | if (change) { |
Mark Brown | 283375c | 2009-12-07 18:09:03 +0000 | [diff] [blame] | 1782 | if (val) |
| 1783 | /* new connection */ |
| 1784 | connect = invert ? 0:1; |
| 1785 | else |
| 1786 | /* old connection must be powered down */ |
| 1787 | connect = invert ? 1:0; |
| 1788 | |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1789 | update.kcontrol = kcontrol; |
| 1790 | update.widget = widget; |
| 1791 | update.reg = reg; |
| 1792 | update.mask = mask; |
| 1793 | update.val = val; |
| 1794 | widget->dapm->update = &update; |
| 1795 | |
Mark Brown | 283375c | 2009-12-07 18:09:03 +0000 | [diff] [blame] | 1796 | dapm_mixer_update_power(widget, kcontrol, connect); |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1797 | |
| 1798 | widget->dapm->update = NULL; |
Mark Brown | 283375c | 2009-12-07 18:09:03 +0000 | [diff] [blame] | 1799 | } |
| 1800 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1801 | mutex_unlock(&widget->codec->mutex); |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1802 | return 0; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1803 | } |
| 1804 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); |
| 1805 | |
| 1806 | /** |
| 1807 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback |
| 1808 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1809 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1810 | * |
| 1811 | * Callback to get the value of a dapm enumerated double mixer control. |
| 1812 | * |
| 1813 | * Returns 0 for success. |
| 1814 | */ |
| 1815 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, |
| 1816 | struct snd_ctl_elem_value *ucontrol) |
| 1817 | { |
| 1818 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
| 1819 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1820 | unsigned int val, bitmask; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1821 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1822 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1823 | ; |
| 1824 | val = snd_soc_read(widget->codec, e->reg); |
| 1825 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); |
| 1826 | if (e->shift_l != e->shift_r) |
| 1827 | ucontrol->value.enumerated.item[1] = |
| 1828 | (val >> e->shift_r) & (bitmask - 1); |
| 1829 | |
| 1830 | return 0; |
| 1831 | } |
| 1832 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
| 1833 | |
| 1834 | /** |
| 1835 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
| 1836 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1837 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1838 | * |
| 1839 | * Callback to set the value of a dapm enumerated double mixer control. |
| 1840 | * |
| 1841 | * Returns 0 for success. |
| 1842 | */ |
| 1843 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
| 1844 | struct snd_ctl_elem_value *ucontrol) |
| 1845 | { |
| 1846 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
| 1847 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Mark Brown | 3a65577 | 2009-10-05 17:23:30 +0100 | [diff] [blame] | 1848 | unsigned int val, mux, change; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1849 | unsigned int mask, bitmask; |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1850 | struct snd_soc_dapm_update update; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1851 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1852 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1853 | ; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1854 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1855 | return -EINVAL; |
| 1856 | mux = ucontrol->value.enumerated.item[0]; |
| 1857 | val = mux << e->shift_l; |
| 1858 | mask = (bitmask - 1) << e->shift_l; |
| 1859 | if (e->shift_l != e->shift_r) { |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1860 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1861 | return -EINVAL; |
| 1862 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; |
| 1863 | mask |= (bitmask - 1) << e->shift_r; |
| 1864 | } |
| 1865 | |
| 1866 | mutex_lock(&widget->codec->mutex); |
| 1867 | widget->value = val; |
Mark Brown | 3a65577 | 2009-10-05 17:23:30 +0100 | [diff] [blame] | 1868 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1869 | |
| 1870 | update.kcontrol = kcontrol; |
| 1871 | update.widget = widget; |
| 1872 | update.reg = e->reg; |
| 1873 | update.mask = mask; |
| 1874 | update.val = val; |
| 1875 | widget->dapm->update = &update; |
| 1876 | |
Mark Brown | 3a65577 | 2009-10-05 17:23:30 +0100 | [diff] [blame] | 1877 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
Mark Brown | 1642e3d | 2009-10-05 16:24:26 +0100 | [diff] [blame] | 1878 | |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1879 | widget->dapm->update = NULL; |
Mark Brown | 1642e3d | 2009-10-05 16:24:26 +0100 | [diff] [blame] | 1880 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1881 | mutex_unlock(&widget->codec->mutex); |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1882 | return change; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1883 | } |
| 1884 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
| 1885 | |
| 1886 | /** |
Mark Brown | d2b247a | 2009-10-06 15:21:04 +0100 | [diff] [blame] | 1887 | * snd_soc_dapm_get_enum_virt - Get virtual DAPM mux |
| 1888 | * @kcontrol: mixer control |
| 1889 | * @ucontrol: control element information |
| 1890 | * |
| 1891 | * Returns 0 for success. |
| 1892 | */ |
| 1893 | int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, |
| 1894 | struct snd_ctl_elem_value *ucontrol) |
| 1895 | { |
| 1896 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
| 1897 | |
| 1898 | ucontrol->value.enumerated.item[0] = widget->value; |
| 1899 | |
| 1900 | return 0; |
| 1901 | } |
| 1902 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); |
| 1903 | |
| 1904 | /** |
| 1905 | * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux |
| 1906 | * @kcontrol: mixer control |
| 1907 | * @ucontrol: control element information |
| 1908 | * |
| 1909 | * Returns 0 for success. |
| 1910 | */ |
| 1911 | int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, |
| 1912 | struct snd_ctl_elem_value *ucontrol) |
| 1913 | { |
| 1914 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
| 1915 | struct soc_enum *e = |
| 1916 | (struct soc_enum *)kcontrol->private_value; |
| 1917 | int change; |
| 1918 | int ret = 0; |
| 1919 | |
| 1920 | if (ucontrol->value.enumerated.item[0] >= e->max) |
| 1921 | return -EINVAL; |
| 1922 | |
| 1923 | mutex_lock(&widget->codec->mutex); |
| 1924 | |
| 1925 | change = widget->value != ucontrol->value.enumerated.item[0]; |
| 1926 | widget->value = ucontrol->value.enumerated.item[0]; |
| 1927 | dapm_mux_update_power(widget, kcontrol, change, widget->value, e); |
| 1928 | |
| 1929 | mutex_unlock(&widget->codec->mutex); |
| 1930 | return ret; |
| 1931 | } |
| 1932 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); |
| 1933 | |
| 1934 | /** |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1935 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get |
| 1936 | * callback |
| 1937 | * @kcontrol: mixer control |
| 1938 | * @ucontrol: control element information |
| 1939 | * |
| 1940 | * Callback to get the value of a dapm semi enumerated double mixer control. |
| 1941 | * |
| 1942 | * Semi enumerated mixer: the enumerated items are referred as values. Can be |
| 1943 | * used for handling bitfield coded enumeration for example. |
| 1944 | * |
| 1945 | * Returns 0 for success. |
| 1946 | */ |
| 1947 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, |
| 1948 | struct snd_ctl_elem_value *ucontrol) |
| 1949 | { |
| 1950 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1951 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1952 | unsigned int reg_val, val, mux; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1953 | |
| 1954 | reg_val = snd_soc_read(widget->codec, e->reg); |
| 1955 | val = (reg_val >> e->shift_l) & e->mask; |
| 1956 | for (mux = 0; mux < e->max; mux++) { |
| 1957 | if (val == e->values[mux]) |
| 1958 | break; |
| 1959 | } |
| 1960 | ucontrol->value.enumerated.item[0] = mux; |
| 1961 | if (e->shift_l != e->shift_r) { |
| 1962 | val = (reg_val >> e->shift_r) & e->mask; |
| 1963 | for (mux = 0; mux < e->max; mux++) { |
| 1964 | if (val == e->values[mux]) |
| 1965 | break; |
| 1966 | } |
| 1967 | ucontrol->value.enumerated.item[1] = mux; |
| 1968 | } |
| 1969 | |
| 1970 | return 0; |
| 1971 | } |
| 1972 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); |
| 1973 | |
| 1974 | /** |
| 1975 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set |
| 1976 | * callback |
| 1977 | * @kcontrol: mixer control |
| 1978 | * @ucontrol: control element information |
| 1979 | * |
| 1980 | * Callback to set the value of a dapm semi enumerated double mixer control. |
| 1981 | * |
| 1982 | * Semi enumerated mixer: the enumerated items are referred as values. Can be |
| 1983 | * used for handling bitfield coded enumeration for example. |
| 1984 | * |
| 1985 | * Returns 0 for success. |
| 1986 | */ |
| 1987 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, |
| 1988 | struct snd_ctl_elem_value *ucontrol) |
| 1989 | { |
| 1990 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1991 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Mark Brown | 3a65577 | 2009-10-05 17:23:30 +0100 | [diff] [blame] | 1992 | unsigned int val, mux, change; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1993 | unsigned int mask; |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 1994 | struct snd_soc_dapm_update update; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1995 | |
| 1996 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
| 1997 | return -EINVAL; |
| 1998 | mux = ucontrol->value.enumerated.item[0]; |
| 1999 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; |
| 2000 | mask = e->mask << e->shift_l; |
| 2001 | if (e->shift_l != e->shift_r) { |
| 2002 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
| 2003 | return -EINVAL; |
| 2004 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; |
| 2005 | mask |= e->mask << e->shift_r; |
| 2006 | } |
| 2007 | |
| 2008 | mutex_lock(&widget->codec->mutex); |
| 2009 | widget->value = val; |
Mark Brown | 3a65577 | 2009-10-05 17:23:30 +0100 | [diff] [blame] | 2010 | change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 2011 | |
| 2012 | update.kcontrol = kcontrol; |
| 2013 | update.widget = widget; |
| 2014 | update.reg = e->reg; |
| 2015 | update.mask = mask; |
| 2016 | update.val = val; |
| 2017 | widget->dapm->update = &update; |
| 2018 | |
Mark Brown | 3a65577 | 2009-10-05 17:23:30 +0100 | [diff] [blame] | 2019 | dapm_mux_update_power(widget, kcontrol, change, mux, e); |
Mark Brown | 1642e3d | 2009-10-05 16:24:26 +0100 | [diff] [blame] | 2020 | |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 2021 | widget->dapm->update = NULL; |
Mark Brown | 1642e3d | 2009-10-05 16:24:26 +0100 | [diff] [blame] | 2022 | |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 2023 | mutex_unlock(&widget->codec->mutex); |
Mark Brown | 97404f2 | 2010-12-14 16:13:57 +0000 | [diff] [blame] | 2024 | return change; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 2025 | } |
| 2026 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); |
| 2027 | |
| 2028 | /** |
Mark Brown | 8b37dbd | 2009-02-28 21:14:20 +0000 | [diff] [blame] | 2029 | * snd_soc_dapm_info_pin_switch - Info for a pin switch |
| 2030 | * |
| 2031 | * @kcontrol: mixer control |
| 2032 | * @uinfo: control element information |
| 2033 | * |
| 2034 | * Callback to provide information about a pin switch control. |
| 2035 | */ |
| 2036 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, |
| 2037 | struct snd_ctl_elem_info *uinfo) |
| 2038 | { |
| 2039 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 2040 | uinfo->count = 1; |
| 2041 | uinfo->value.integer.min = 0; |
| 2042 | uinfo->value.integer.max = 1; |
| 2043 | |
| 2044 | return 0; |
| 2045 | } |
| 2046 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); |
| 2047 | |
| 2048 | /** |
| 2049 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch |
| 2050 | * |
| 2051 | * @kcontrol: mixer control |
| 2052 | * @ucontrol: Value |
| 2053 | */ |
| 2054 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, |
| 2055 | struct snd_ctl_elem_value *ucontrol) |
| 2056 | { |
| 2057 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 2058 | const char *pin = (const char *)kcontrol->private_value; |
| 2059 | |
| 2060 | mutex_lock(&codec->mutex); |
| 2061 | |
| 2062 | ucontrol->value.integer.value[0] = |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2063 | snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
Mark Brown | 8b37dbd | 2009-02-28 21:14:20 +0000 | [diff] [blame] | 2064 | |
| 2065 | mutex_unlock(&codec->mutex); |
| 2066 | |
| 2067 | return 0; |
| 2068 | } |
| 2069 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); |
| 2070 | |
| 2071 | /** |
| 2072 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch |
| 2073 | * |
| 2074 | * @kcontrol: mixer control |
| 2075 | * @ucontrol: Value |
| 2076 | */ |
| 2077 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, |
| 2078 | struct snd_ctl_elem_value *ucontrol) |
| 2079 | { |
| 2080 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 2081 | const char *pin = (const char *)kcontrol->private_value; |
| 2082 | |
| 2083 | mutex_lock(&codec->mutex); |
| 2084 | |
| 2085 | if (ucontrol->value.integer.value[0]) |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2086 | snd_soc_dapm_enable_pin(&codec->dapm, pin); |
Mark Brown | 8b37dbd | 2009-02-28 21:14:20 +0000 | [diff] [blame] | 2087 | else |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2088 | snd_soc_dapm_disable_pin(&codec->dapm, pin); |
Mark Brown | 8b37dbd | 2009-02-28 21:14:20 +0000 | [diff] [blame] | 2089 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2090 | snd_soc_dapm_sync(&codec->dapm); |
Mark Brown | 8b37dbd | 2009-02-28 21:14:20 +0000 | [diff] [blame] | 2091 | |
| 2092 | mutex_unlock(&codec->mutex); |
| 2093 | |
| 2094 | return 0; |
| 2095 | } |
| 2096 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); |
| 2097 | |
| 2098 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2099 | * snd_soc_dapm_new_control - create new dapm control |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2100 | * @dapm: DAPM context |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2101 | * @widget: widget template |
| 2102 | * |
| 2103 | * Creates a new dapm control based upon the template. |
| 2104 | * |
| 2105 | * Returns 0 for success else error. |
| 2106 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2107 | int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2108 | const struct snd_soc_dapm_widget *widget) |
| 2109 | { |
| 2110 | struct snd_soc_dapm_widget *w; |
Jarkko Nikula | ead9b91 | 2010-11-13 20:40:44 +0200 | [diff] [blame] | 2111 | size_t name_len; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2112 | |
| 2113 | if ((w = dapm_cnew_widget(widget)) == NULL) |
| 2114 | return -ENOMEM; |
| 2115 | |
Jarkko Nikula | ead9b91 | 2010-11-13 20:40:44 +0200 | [diff] [blame] | 2116 | name_len = strlen(widget->name) + 1; |
| 2117 | if (dapm->codec->name_prefix) |
| 2118 | name_len += 1 + strlen(dapm->codec->name_prefix); |
| 2119 | w->name = kmalloc(name_len, GFP_KERNEL); |
| 2120 | if (w->name == NULL) { |
| 2121 | kfree(w); |
| 2122 | return -ENOMEM; |
| 2123 | } |
| 2124 | if (dapm->codec->name_prefix) |
| 2125 | snprintf(w->name, name_len, "%s %s", |
| 2126 | dapm->codec->name_prefix, widget->name); |
| 2127 | else |
| 2128 | snprintf(w->name, name_len, "%s", widget->name); |
| 2129 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 2130 | dapm->n_widgets++; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2131 | w->dapm = dapm; |
| 2132 | w->codec = dapm->codec; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2133 | INIT_LIST_HEAD(&w->sources); |
| 2134 | INIT_LIST_HEAD(&w->sinks); |
| 2135 | INIT_LIST_HEAD(&w->list); |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 2136 | list_add(&w->list, &dapm->card->widgets); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2137 | |
| 2138 | /* machine layer set ups unconnected pins and insertions */ |
| 2139 | w->connected = 1; |
| 2140 | return 0; |
| 2141 | } |
| 2142 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); |
| 2143 | |
| 2144 | /** |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 2145 | * snd_soc_dapm_new_controls - create new dapm controls |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2146 | * @dapm: DAPM context |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 2147 | * @widget: widget array |
| 2148 | * @num: number of widgets |
| 2149 | * |
| 2150 | * Creates new DAPM controls based upon the templates. |
| 2151 | * |
| 2152 | * Returns 0 for success else error. |
| 2153 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2154 | int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 2155 | const struct snd_soc_dapm_widget *widget, |
| 2156 | int num) |
| 2157 | { |
| 2158 | int i, ret; |
| 2159 | |
| 2160 | for (i = 0; i < num; i++) { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2161 | ret = snd_soc_dapm_new_control(dapm, widget); |
Mark Brown | b8b33cb | 2008-12-18 11:19:30 +0000 | [diff] [blame] | 2162 | if (ret < 0) { |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 2163 | dev_err(dapm->dev, |
| 2164 | "ASoC: Failed to create DAPM control %s: %d\n", |
| 2165 | widget->name, ret); |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 2166 | return ret; |
Mark Brown | b8b33cb | 2008-12-18 11:19:30 +0000 | [diff] [blame] | 2167 | } |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 2168 | widget++; |
| 2169 | } |
| 2170 | return 0; |
| 2171 | } |
| 2172 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); |
| 2173 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2174 | static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 2175 | const char *stream, int event) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2176 | { |
| 2177 | struct snd_soc_dapm_widget *w; |
| 2178 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 2179 | list_for_each_entry(w, &dapm->card->widgets, list) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2180 | { |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 2181 | if (!w->sname || w->dapm != dapm) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2182 | continue; |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 2183 | dev_dbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n", |
| 2184 | w->name, w->sname, stream, event); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2185 | if (strstr(w->sname, stream)) { |
| 2186 | switch(event) { |
| 2187 | case SND_SOC_DAPM_STREAM_START: |
| 2188 | w->active = 1; |
| 2189 | break; |
| 2190 | case SND_SOC_DAPM_STREAM_STOP: |
| 2191 | w->active = 0; |
| 2192 | break; |
| 2193 | case SND_SOC_DAPM_STREAM_SUSPEND: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2194 | case SND_SOC_DAPM_STREAM_RESUME: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2195 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2196 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
| 2197 | break; |
| 2198 | } |
| 2199 | } |
| 2200 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2201 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2202 | dapm_power_widgets(dapm, event); |
| 2203 | } |
| 2204 | |
| 2205 | /** |
| 2206 | * snd_soc_dapm_stream_event - send a stream event to the dapm core |
| 2207 | * @rtd: PCM runtime data |
| 2208 | * @stream: stream name |
| 2209 | * @event: stream event |
| 2210 | * |
| 2211 | * Sends a stream event to the dapm core. The core then makes any |
| 2212 | * necessary widget power changes. |
| 2213 | * |
| 2214 | * Returns 0 for success else error. |
| 2215 | */ |
| 2216 | int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, |
| 2217 | const char *stream, int event) |
| 2218 | { |
| 2219 | struct snd_soc_codec *codec = rtd->codec; |
| 2220 | |
| 2221 | if (stream == NULL) |
| 2222 | return 0; |
| 2223 | |
| 2224 | mutex_lock(&codec->mutex); |
| 2225 | soc_dapm_stream_event(&codec->dapm, stream, event); |
Eero Nurkkala | 8e8b2d6 | 2009-10-12 08:41:59 +0300 | [diff] [blame] | 2226 | mutex_unlock(&codec->mutex); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2227 | return 0; |
| 2228 | } |
| 2229 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); |
| 2230 | |
| 2231 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2232 | * snd_soc_dapm_enable_pin - enable pin. |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2233 | * @dapm: DAPM context |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2234 | * @pin: pin name |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2235 | * |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 2236 | * Enables input/output pin and its parents or children widgets iff there is |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2237 | * a valid audio route and active audio stream. |
| 2238 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 2239 | * do any widget power switching. |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2240 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2241 | int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2242 | { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2243 | return snd_soc_dapm_set_pin(dapm, pin, 1); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2244 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2245 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2246 | |
| 2247 | /** |
Mark Brown | da34183 | 2010-03-15 19:23:37 +0000 | [diff] [blame] | 2248 | * snd_soc_dapm_force_enable_pin - force a pin to be enabled |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2249 | * @dapm: DAPM context |
Mark Brown | da34183 | 2010-03-15 19:23:37 +0000 | [diff] [blame] | 2250 | * @pin: pin name |
| 2251 | * |
| 2252 | * Enables input/output pin regardless of any other state. This is |
| 2253 | * intended for use with microphone bias supplies used in microphone |
| 2254 | * jack detection. |
| 2255 | * |
| 2256 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 2257 | * do any widget power switching. |
| 2258 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2259 | int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, |
| 2260 | const char *pin) |
Mark Brown | da34183 | 2010-03-15 19:23:37 +0000 | [diff] [blame] | 2261 | { |
| 2262 | struct snd_soc_dapm_widget *w; |
| 2263 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 2264 | list_for_each_entry(w, &dapm->card->widgets, list) { |
| 2265 | if (w->dapm != dapm) |
| 2266 | continue; |
Mark Brown | da34183 | 2010-03-15 19:23:37 +0000 | [diff] [blame] | 2267 | if (!strcmp(w->name, pin)) { |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 2268 | dev_dbg(w->dapm->dev, |
| 2269 | "dapm: force enable pin %s\n", pin); |
Mark Brown | da34183 | 2010-03-15 19:23:37 +0000 | [diff] [blame] | 2270 | w->connected = 1; |
| 2271 | w->force = 1; |
| 2272 | return 0; |
| 2273 | } |
| 2274 | } |
| 2275 | |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 2276 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
Mark Brown | da34183 | 2010-03-15 19:23:37 +0000 | [diff] [blame] | 2277 | return -EINVAL; |
| 2278 | } |
| 2279 | EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); |
| 2280 | |
| 2281 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2282 | * snd_soc_dapm_disable_pin - disable pin. |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2283 | * @dapm: DAPM context |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2284 | * @pin: pin name |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2285 | * |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 2286 | * Disables input/output pin and its parents or children widgets. |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2287 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 2288 | * do any widget power switching. |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2289 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2290 | int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, |
| 2291 | const char *pin) |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2292 | { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2293 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2294 | } |
| 2295 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
| 2296 | |
| 2297 | /** |
Mark Brown | 5817b52 | 2008-09-24 11:23:11 +0100 | [diff] [blame] | 2298 | * snd_soc_dapm_nc_pin - permanently disable pin. |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2299 | * @dapm: DAPM context |
Mark Brown | 5817b52 | 2008-09-24 11:23:11 +0100 | [diff] [blame] | 2300 | * @pin: pin name |
| 2301 | * |
| 2302 | * Marks the specified pin as being not connected, disabling it along |
| 2303 | * any parent or child widgets. At present this is identical to |
| 2304 | * snd_soc_dapm_disable_pin() but in future it will be extended to do |
| 2305 | * additional things such as disabling controls which only affect |
| 2306 | * paths through the pin. |
| 2307 | * |
| 2308 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 2309 | * do any widget power switching. |
| 2310 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2311 | int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
Mark Brown | 5817b52 | 2008-09-24 11:23:11 +0100 | [diff] [blame] | 2312 | { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2313 | return snd_soc_dapm_set_pin(dapm, pin, 0); |
Mark Brown | 5817b52 | 2008-09-24 11:23:11 +0100 | [diff] [blame] | 2314 | } |
| 2315 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); |
| 2316 | |
| 2317 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2318 | * snd_soc_dapm_get_pin_status - get audio pin status |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2319 | * @dapm: DAPM context |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2320 | * @pin: audio signal pin endpoint (or start point) |
| 2321 | * |
| 2322 | * Get audio pin status - connected or disconnected. |
| 2323 | * |
| 2324 | * Returns 1 for connected otherwise 0. |
| 2325 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2326 | int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, |
| 2327 | const char *pin) |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2328 | { |
| 2329 | struct snd_soc_dapm_widget *w; |
| 2330 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 2331 | list_for_each_entry(w, &dapm->card->widgets, list) { |
| 2332 | if (w->dapm != dapm) |
| 2333 | continue; |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2334 | if (!strcmp(w->name, pin)) |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2335 | return w->connected; |
| 2336 | } |
| 2337 | |
| 2338 | return 0; |
| 2339 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2340 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2341 | |
| 2342 | /** |
Mark Brown | 1547aba | 2010-05-07 21:11:40 +0100 | [diff] [blame] | 2343 | * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2344 | * @dapm: DAPM context |
Mark Brown | 1547aba | 2010-05-07 21:11:40 +0100 | [diff] [blame] | 2345 | * @pin: audio signal pin endpoint (or start point) |
| 2346 | * |
| 2347 | * Mark the given endpoint or pin as ignoring suspend. When the |
| 2348 | * system is disabled a path between two endpoints flagged as ignoring |
| 2349 | * suspend will not be disabled. The path must already be enabled via |
| 2350 | * normal means at suspend time, it will not be turned on if it was not |
| 2351 | * already enabled. |
| 2352 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2353 | int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, |
| 2354 | const char *pin) |
Mark Brown | 1547aba | 2010-05-07 21:11:40 +0100 | [diff] [blame] | 2355 | { |
| 2356 | struct snd_soc_dapm_widget *w; |
| 2357 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 2358 | list_for_each_entry(w, &dapm->card->widgets, list) { |
| 2359 | if (w->dapm != dapm) |
| 2360 | continue; |
Mark Brown | 1547aba | 2010-05-07 21:11:40 +0100 | [diff] [blame] | 2361 | if (!strcmp(w->name, pin)) { |
| 2362 | w->ignore_suspend = 1; |
| 2363 | return 0; |
| 2364 | } |
| 2365 | } |
| 2366 | |
Jarkko Nikula | f7d41ae | 2010-11-09 14:40:27 +0200 | [diff] [blame] | 2367 | dev_err(dapm->dev, "dapm: unknown pin %s\n", pin); |
Mark Brown | 1547aba | 2010-05-07 21:11:40 +0100 | [diff] [blame] | 2368 | return -EINVAL; |
| 2369 | } |
| 2370 | EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); |
| 2371 | |
| 2372 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2373 | * snd_soc_dapm_free - free dapm resources |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 2374 | * @card: SoC device |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2375 | * |
| 2376 | * Free all dapm widgets and resources. |
| 2377 | */ |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2378 | void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2379 | { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2380 | snd_soc_dapm_sys_remove(dapm->dev); |
| 2381 | dapm_free_widgets(dapm); |
Jarkko Nikula | 7be31be8 | 2010-12-14 12:18:32 +0200 | [diff] [blame] | 2382 | list_del(&dapm->list); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2383 | } |
| 2384 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); |
| 2385 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2386 | static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2387 | { |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2388 | struct snd_soc_dapm_widget *w; |
| 2389 | LIST_HEAD(down_list); |
| 2390 | int powerdown = 0; |
| 2391 | |
Jarkko Nikula | 97c866d | 2010-12-14 12:18:31 +0200 | [diff] [blame] | 2392 | list_for_each_entry(w, &dapm->card->widgets, list) { |
| 2393 | if (w->dapm != dapm) |
| 2394 | continue; |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2395 | if (w->power) { |
| 2396 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
Mark Brown | c2caa4d | 2009-06-26 15:36:56 +0100 | [diff] [blame] | 2397 | w->power = 0; |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2398 | powerdown = 1; |
| 2399 | } |
| 2400 | } |
| 2401 | |
| 2402 | /* If there were no widgets to power down we're already in |
| 2403 | * standby. |
| 2404 | */ |
| 2405 | if (powerdown) { |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2406 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_PREPARE); |
| 2407 | dapm_seq_run(dapm, &down_list, 0, dapm_down_seq); |
| 2408 | snd_soc_dapm_set_bias_level(NULL, dapm, SND_SOC_BIAS_STANDBY); |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2409 | } |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 2410 | } |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2411 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 2412 | /* |
| 2413 | * snd_soc_dapm_shutdown - callback for system shutdown |
| 2414 | */ |
| 2415 | void snd_soc_dapm_shutdown(struct snd_soc_card *card) |
| 2416 | { |
| 2417 | struct snd_soc_codec *codec; |
| 2418 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame] | 2419 | list_for_each_entry(codec, &card->codec_dev_list, list) { |
| 2420 | soc_dapm_shutdown_codec(&codec->dapm); |
| 2421 | snd_soc_dapm_set_bias_level(card, &codec->dapm, SND_SOC_BIAS_OFF); |
| 2422 | } |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2423 | } |
| 2424 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2425 | /* Module information */ |
Liam Girdwood | d331124 | 2008-10-12 13:17:36 +0100 | [diff] [blame] | 2426 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2427 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
| 2428 | MODULE_LICENSE("GPL"); |