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> |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 40 | #include <sound/core.h> |
| 41 | #include <sound/pcm.h> |
| 42 | #include <sound/pcm_params.h> |
| 43 | #include <sound/soc-dapm.h> |
| 44 | #include <sound/initval.h> |
| 45 | |
| 46 | /* debug */ |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 47 | #ifdef DEBUG |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 48 | #define dump_dapm(codec, action) dbg_dump_dapm(codec, action) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 49 | #else |
| 50 | #define dump_dapm(codec, action) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 51 | #endif |
| 52 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 53 | /* dapm power sequences - make this per codec in the future */ |
| 54 | static int dapm_up_seq[] = { |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 55 | [snd_soc_dapm_pre] = 0, |
| 56 | [snd_soc_dapm_supply] = 1, |
| 57 | [snd_soc_dapm_micbias] = 2, |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 58 | [snd_soc_dapm_aif_in] = 3, |
| 59 | [snd_soc_dapm_aif_out] = 3, |
| 60 | [snd_soc_dapm_mic] = 4, |
| 61 | [snd_soc_dapm_mux] = 5, |
| 62 | [snd_soc_dapm_value_mux] = 5, |
| 63 | [snd_soc_dapm_dac] = 6, |
| 64 | [snd_soc_dapm_mixer] = 7, |
| 65 | [snd_soc_dapm_mixer_named_ctl] = 7, |
| 66 | [snd_soc_dapm_pga] = 8, |
| 67 | [snd_soc_dapm_adc] = 9, |
| 68 | [snd_soc_dapm_hp] = 10, |
| 69 | [snd_soc_dapm_spk] = 10, |
| 70 | [snd_soc_dapm_post] = 11, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 71 | }; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 72 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 73 | static int dapm_down_seq[] = { |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 74 | [snd_soc_dapm_pre] = 0, |
| 75 | [snd_soc_dapm_adc] = 1, |
| 76 | [snd_soc_dapm_hp] = 2, |
Mark Brown | 1ca0406 | 2009-08-17 16:26:59 +0100 | [diff] [blame] | 77 | [snd_soc_dapm_spk] = 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, |
| 85 | [snd_soc_dapm_value_mux] = 9, |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 86 | [snd_soc_dapm_aif_in] = 10, |
| 87 | [snd_soc_dapm_aif_out] = 10, |
| 88 | [snd_soc_dapm_supply] = 11, |
| 89 | [snd_soc_dapm_post] = 12, |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 90 | }; |
| 91 | |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 92 | static void pop_wait(u32 pop_time) |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 93 | { |
| 94 | if (pop_time) |
| 95 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); |
| 96 | } |
| 97 | |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 98 | static void pop_dbg(u32 pop_time, const char *fmt, ...) |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 99 | { |
| 100 | va_list args; |
| 101 | |
| 102 | va_start(args, fmt); |
| 103 | |
| 104 | if (pop_time) { |
| 105 | vprintk(fmt, args); |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 106 | pop_wait(pop_time); |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 107 | } |
| 108 | |
| 109 | va_end(args); |
| 110 | } |
| 111 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 112 | /* create a new dapm widget */ |
Takashi Iwai | 88cb429 | 2007-02-05 14:56:20 +0100 | [diff] [blame] | 113 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 114 | const struct snd_soc_dapm_widget *_widget) |
| 115 | { |
Takashi Iwai | 88cb429 | 2007-02-05 14:56:20 +0100 | [diff] [blame] | 116 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 117 | } |
| 118 | |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 119 | /** |
| 120 | * snd_soc_dapm_set_bias_level - set the bias level for the system |
| 121 | * @socdev: audio device |
| 122 | * @level: level to configure |
| 123 | * |
| 124 | * Configure the bias (power) levels for the SoC audio device. |
| 125 | * |
| 126 | * Returns 0 for success else error. |
| 127 | */ |
| 128 | static int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev, |
| 129 | enum snd_soc_bias_level level) |
| 130 | { |
| 131 | struct snd_soc_card *card = socdev->card; |
| 132 | struct snd_soc_codec *codec = socdev->card->codec; |
| 133 | int ret = 0; |
| 134 | |
Mark Brown | f83fba8 | 2009-05-18 15:44:43 +0100 | [diff] [blame] | 135 | switch (level) { |
| 136 | case SND_SOC_BIAS_ON: |
| 137 | dev_dbg(socdev->dev, "Setting full bias\n"); |
| 138 | break; |
| 139 | case SND_SOC_BIAS_PREPARE: |
| 140 | dev_dbg(socdev->dev, "Setting bias prepare\n"); |
| 141 | break; |
| 142 | case SND_SOC_BIAS_STANDBY: |
| 143 | dev_dbg(socdev->dev, "Setting standby bias\n"); |
| 144 | break; |
| 145 | case SND_SOC_BIAS_OFF: |
| 146 | dev_dbg(socdev->dev, "Setting bias off\n"); |
| 147 | break; |
| 148 | default: |
| 149 | dev_err(socdev->dev, "Setting invalid bias %d\n", level); |
| 150 | return -EINVAL; |
| 151 | } |
| 152 | |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 153 | if (card->set_bias_level) |
| 154 | ret = card->set_bias_level(card, level); |
| 155 | if (ret == 0 && codec->set_bias_level) |
| 156 | ret = codec->set_bias_level(codec, level); |
| 157 | |
| 158 | return ret; |
| 159 | } |
| 160 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 161 | /* set up initial codec paths */ |
| 162 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, |
| 163 | struct snd_soc_dapm_path *p, int i) |
| 164 | { |
| 165 | switch (w->id) { |
| 166 | case snd_soc_dapm_switch: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 167 | case snd_soc_dapm_mixer: |
| 168 | case snd_soc_dapm_mixer_named_ctl: { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 169 | int val; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 170 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
| 171 | w->kcontrols[i].private_value; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 172 | unsigned int reg = mc->reg; |
| 173 | unsigned int shift = mc->shift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 174 | int max = mc->max; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 175 | unsigned int mask = (1 << fls(max)) - 1; |
| 176 | unsigned int invert = mc->invert; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 177 | |
| 178 | val = snd_soc_read(w->codec, reg); |
| 179 | val = (val >> shift) & mask; |
| 180 | |
| 181 | if ((invert && !val) || (!invert && val)) |
| 182 | p->connect = 1; |
| 183 | else |
| 184 | p->connect = 0; |
| 185 | } |
| 186 | break; |
| 187 | case snd_soc_dapm_mux: { |
| 188 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; |
| 189 | int val, item, bitmask; |
| 190 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 191 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 192 | ; |
| 193 | val = snd_soc_read(w->codec, e->reg); |
| 194 | item = (val >> e->shift_l) & (bitmask - 1); |
| 195 | |
| 196 | p->connect = 0; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 197 | for (i = 0; i < e->max; i++) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 198 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
| 199 | p->connect = 1; |
| 200 | } |
| 201 | } |
| 202 | break; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 203 | case snd_soc_dapm_value_mux: { |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 204 | struct soc_enum *e = (struct soc_enum *) |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 205 | w->kcontrols[i].private_value; |
| 206 | int val, item; |
| 207 | |
| 208 | val = snd_soc_read(w->codec, e->reg); |
| 209 | val = (val >> e->shift_l) & e->mask; |
| 210 | for (item = 0; item < e->max; item++) { |
| 211 | if (val == e->values[item]) |
| 212 | break; |
| 213 | } |
| 214 | |
| 215 | p->connect = 0; |
| 216 | for (i = 0; i < e->max; i++) { |
| 217 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
| 218 | p->connect = 1; |
| 219 | } |
| 220 | } |
| 221 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 222 | /* does not effect routing - always connected */ |
| 223 | case snd_soc_dapm_pga: |
| 224 | case snd_soc_dapm_output: |
| 225 | case snd_soc_dapm_adc: |
| 226 | case snd_soc_dapm_input: |
| 227 | case snd_soc_dapm_dac: |
| 228 | case snd_soc_dapm_micbias: |
| 229 | case snd_soc_dapm_vmid: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 230 | case snd_soc_dapm_supply: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 231 | case snd_soc_dapm_aif_in: |
| 232 | case snd_soc_dapm_aif_out: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 233 | p->connect = 1; |
| 234 | break; |
| 235 | /* does effect routing - dynamically connected */ |
| 236 | case snd_soc_dapm_hp: |
| 237 | case snd_soc_dapm_mic: |
| 238 | case snd_soc_dapm_spk: |
| 239 | case snd_soc_dapm_line: |
| 240 | case snd_soc_dapm_pre: |
| 241 | case snd_soc_dapm_post: |
| 242 | p->connect = 0; |
| 243 | break; |
| 244 | } |
| 245 | } |
| 246 | |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 247 | /* connect mux widget to its interconnecting audio paths */ |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 248 | static int dapm_connect_mux(struct snd_soc_codec *codec, |
| 249 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
| 250 | struct snd_soc_dapm_path *path, const char *control_name, |
| 251 | const struct snd_kcontrol_new *kcontrol) |
| 252 | { |
| 253 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 254 | int i; |
| 255 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 256 | for (i = 0; i < e->max; i++) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 257 | if (!(strcmp(control_name, e->texts[i]))) { |
| 258 | list_add(&path->list, &codec->dapm_paths); |
| 259 | list_add(&path->list_sink, &dest->sources); |
| 260 | list_add(&path->list_source, &src->sinks); |
| 261 | path->name = (char*)e->texts[i]; |
| 262 | dapm_set_path_status(dest, path, 0); |
| 263 | return 0; |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | return -ENODEV; |
| 268 | } |
| 269 | |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 270 | /* connect mixer widget to its interconnecting audio paths */ |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 271 | static int dapm_connect_mixer(struct snd_soc_codec *codec, |
| 272 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
| 273 | struct snd_soc_dapm_path *path, const char *control_name) |
| 274 | { |
| 275 | int i; |
| 276 | |
| 277 | /* search for mixer kcontrol */ |
| 278 | for (i = 0; i < dest->num_kcontrols; i++) { |
| 279 | if (!strcmp(control_name, dest->kcontrols[i].name)) { |
| 280 | list_add(&path->list, &codec->dapm_paths); |
| 281 | list_add(&path->list_sink, &dest->sources); |
| 282 | list_add(&path->list_source, &src->sinks); |
| 283 | path->name = dest->kcontrols[i].name; |
| 284 | dapm_set_path_status(dest, path, i); |
| 285 | return 0; |
| 286 | } |
| 287 | } |
| 288 | return -ENODEV; |
| 289 | } |
| 290 | |
| 291 | /* update dapm codec register bits */ |
| 292 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) |
| 293 | { |
| 294 | int change, power; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 295 | unsigned int old, new; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 296 | struct snd_soc_codec *codec = widget->codec; |
| 297 | |
| 298 | /* check for valid widgets */ |
| 299 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || |
| 300 | widget->id == snd_soc_dapm_output || |
| 301 | widget->id == snd_soc_dapm_hp || |
| 302 | widget->id == snd_soc_dapm_mic || |
| 303 | widget->id == snd_soc_dapm_line || |
| 304 | widget->id == snd_soc_dapm_spk) |
| 305 | return 0; |
| 306 | |
| 307 | power = widget->power; |
| 308 | if (widget->invert) |
| 309 | power = (power ? 0:1); |
| 310 | |
| 311 | old = snd_soc_read(codec, widget->reg); |
| 312 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); |
| 313 | |
| 314 | change = old != new; |
| 315 | if (change) { |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 316 | pop_dbg(codec->pop_time, "pop test %s : %s in %d ms\n", |
| 317 | widget->name, widget->power ? "on" : "off", |
| 318 | codec->pop_time); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 319 | snd_soc_write(codec, widget->reg, new); |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 320 | pop_wait(codec->pop_time); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 321 | } |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 322 | pr_debug("reg %x old %x new %x change %d\n", widget->reg, |
| 323 | old, new, change); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 324 | return change; |
| 325 | } |
| 326 | |
| 327 | /* ramps the volume up or down to minimise pops before or after a |
| 328 | * DAPM power event */ |
| 329 | static int dapm_set_pga(struct snd_soc_dapm_widget *widget, int power) |
| 330 | { |
| 331 | const struct snd_kcontrol_new *k = widget->kcontrols; |
| 332 | |
| 333 | if (widget->muted && !power) |
| 334 | return 0; |
| 335 | if (!widget->muted && power) |
| 336 | return 0; |
| 337 | |
| 338 | if (widget->num_kcontrols && k) { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 339 | struct soc_mixer_control *mc = |
| 340 | (struct soc_mixer_control *)k->private_value; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 341 | unsigned int reg = mc->reg; |
| 342 | unsigned int shift = mc->shift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 343 | int max = mc->max; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 344 | unsigned int mask = (1 << fls(max)) - 1; |
| 345 | unsigned int invert = mc->invert; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 346 | |
| 347 | if (power) { |
| 348 | int i; |
| 349 | /* power up has happended, increase volume to last level */ |
| 350 | if (invert) { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 351 | for (i = max; i > widget->saved_value; i--) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 352 | snd_soc_update_bits(widget->codec, reg, mask, i); |
| 353 | } else { |
| 354 | for (i = 0; i < widget->saved_value; i++) |
| 355 | snd_soc_update_bits(widget->codec, reg, mask, i); |
| 356 | } |
| 357 | widget->muted = 0; |
| 358 | } else { |
| 359 | /* power down is about to occur, decrease volume to mute */ |
| 360 | int val = snd_soc_read(widget->codec, reg); |
| 361 | int i = widget->saved_value = (val >> shift) & mask; |
| 362 | if (invert) { |
| 363 | for (; i < mask; i++) |
| 364 | snd_soc_update_bits(widget->codec, reg, mask, i); |
| 365 | } else { |
| 366 | for (; i > 0; i--) |
| 367 | snd_soc_update_bits(widget->codec, reg, mask, i); |
| 368 | } |
| 369 | widget->muted = 1; |
| 370 | } |
| 371 | } |
| 372 | return 0; |
| 373 | } |
| 374 | |
| 375 | /* create new dapm mixer control */ |
| 376 | static int dapm_new_mixer(struct snd_soc_codec *codec, |
| 377 | struct snd_soc_dapm_widget *w) |
| 378 | { |
| 379 | int i, ret = 0; |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 380 | size_t name_len; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 381 | struct snd_soc_dapm_path *path; |
| 382 | |
| 383 | /* add kcontrol */ |
| 384 | for (i = 0; i < w->num_kcontrols; i++) { |
| 385 | |
| 386 | /* match name */ |
| 387 | list_for_each_entry(path, &w->sources, list_sink) { |
| 388 | |
| 389 | /* mixer/mux paths name must match control name */ |
| 390 | if (path->name != (char*)w->kcontrols[i].name) |
| 391 | continue; |
| 392 | |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 393 | /* add dapm control with long name. |
| 394 | * for dapm_mixer this is the concatenation of the |
| 395 | * mixer and kcontrol name. |
| 396 | * for dapm_mixer_named_ctl this is simply the |
| 397 | * kcontrol name. |
| 398 | */ |
| 399 | name_len = strlen(w->kcontrols[i].name) + 1; |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 400 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 401 | name_len += 1 + strlen(w->name); |
| 402 | |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 403 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 404 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 405 | if (path->long_name == NULL) |
| 406 | return -ENOMEM; |
| 407 | |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 408 | switch (w->id) { |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 409 | default: |
| 410 | snprintf(path->long_name, name_len, "%s %s", |
| 411 | w->name, w->kcontrols[i].name); |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 412 | break; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 413 | case snd_soc_dapm_mixer_named_ctl: |
| 414 | snprintf(path->long_name, name_len, "%s", |
| 415 | w->kcontrols[i].name); |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 416 | break; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 417 | } |
| 418 | |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 419 | path->long_name[name_len - 1] = '\0'; |
| 420 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 421 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
| 422 | path->long_name); |
| 423 | ret = snd_ctl_add(codec->card, path->kcontrol); |
| 424 | if (ret < 0) { |
Mark Brown | 6553e19 | 2009-04-06 16:59:32 +0100 | [diff] [blame] | 425 | printk(KERN_ERR "asoc: failed to add dapm kcontrol %s: %d\n", |
| 426 | path->long_name, |
| 427 | ret); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 428 | kfree(path->long_name); |
| 429 | path->long_name = NULL; |
| 430 | return ret; |
| 431 | } |
| 432 | } |
| 433 | } |
| 434 | return ret; |
| 435 | } |
| 436 | |
| 437 | /* create new dapm mux control */ |
| 438 | static int dapm_new_mux(struct snd_soc_codec *codec, |
| 439 | struct snd_soc_dapm_widget *w) |
| 440 | { |
| 441 | struct snd_soc_dapm_path *path = NULL; |
| 442 | struct snd_kcontrol *kcontrol; |
| 443 | int ret = 0; |
| 444 | |
| 445 | if (!w->num_kcontrols) { |
| 446 | printk(KERN_ERR "asoc: mux %s has no controls\n", w->name); |
| 447 | return -EINVAL; |
| 448 | } |
| 449 | |
| 450 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); |
| 451 | ret = snd_ctl_add(codec->card, kcontrol); |
| 452 | if (ret < 0) |
| 453 | goto err; |
| 454 | |
| 455 | list_for_each_entry(path, &w->sources, list_sink) |
| 456 | path->kcontrol = kcontrol; |
| 457 | |
| 458 | return ret; |
| 459 | |
| 460 | err: |
| 461 | printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name); |
| 462 | return ret; |
| 463 | } |
| 464 | |
| 465 | /* create new dapm volume control */ |
| 466 | static int dapm_new_pga(struct snd_soc_codec *codec, |
| 467 | struct snd_soc_dapm_widget *w) |
| 468 | { |
| 469 | struct snd_kcontrol *kcontrol; |
| 470 | int ret = 0; |
| 471 | |
| 472 | if (!w->num_kcontrols) |
| 473 | return -EINVAL; |
| 474 | |
| 475 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); |
| 476 | ret = snd_ctl_add(codec->card, kcontrol); |
| 477 | if (ret < 0) { |
| 478 | printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name); |
| 479 | return ret; |
| 480 | } |
| 481 | |
| 482 | return ret; |
| 483 | } |
| 484 | |
| 485 | /* reset 'walked' bit for each dapm path */ |
| 486 | static inline void dapm_clear_walk(struct snd_soc_codec *codec) |
| 487 | { |
| 488 | struct snd_soc_dapm_path *p; |
| 489 | |
| 490 | list_for_each_entry(p, &codec->dapm_paths, list) |
| 491 | p->walked = 0; |
| 492 | } |
| 493 | |
| 494 | /* |
| 495 | * Recursively check for a completed path to an active or physically connected |
| 496 | * output widget. Returns number of complete paths. |
| 497 | */ |
| 498 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) |
| 499 | { |
| 500 | struct snd_soc_dapm_path *path; |
| 501 | int con = 0; |
| 502 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 503 | if (widget->id == snd_soc_dapm_supply) |
| 504 | return 0; |
| 505 | |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 506 | switch (widget->id) { |
| 507 | case snd_soc_dapm_adc: |
| 508 | case snd_soc_dapm_aif_out: |
| 509 | if (widget->active) |
| 510 | return 1; |
| 511 | default: |
| 512 | break; |
| 513 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 514 | |
| 515 | if (widget->connected) { |
| 516 | /* connected pin ? */ |
| 517 | if (widget->id == snd_soc_dapm_output && !widget->ext) |
| 518 | return 1; |
| 519 | |
| 520 | /* connected jack or spk ? */ |
| 521 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || |
| 522 | widget->id == snd_soc_dapm_line) |
| 523 | return 1; |
| 524 | } |
| 525 | |
| 526 | list_for_each_entry(path, &widget->sinks, list_source) { |
| 527 | if (path->walked) |
| 528 | continue; |
| 529 | |
| 530 | if (path->sink && path->connect) { |
| 531 | path->walked = 1; |
| 532 | con += is_connected_output_ep(path->sink); |
| 533 | } |
| 534 | } |
| 535 | |
| 536 | return con; |
| 537 | } |
| 538 | |
| 539 | /* |
| 540 | * Recursively check for a completed path to an active or physically connected |
| 541 | * input widget. Returns number of complete paths. |
| 542 | */ |
| 543 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) |
| 544 | { |
| 545 | struct snd_soc_dapm_path *path; |
| 546 | int con = 0; |
| 547 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 548 | if (widget->id == snd_soc_dapm_supply) |
| 549 | return 0; |
| 550 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 551 | /* active stream ? */ |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 552 | switch (widget->id) { |
| 553 | case snd_soc_dapm_dac: |
| 554 | case snd_soc_dapm_aif_in: |
| 555 | if (widget->active) |
| 556 | return 1; |
| 557 | default: |
| 558 | break; |
| 559 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 560 | |
| 561 | if (widget->connected) { |
| 562 | /* connected pin ? */ |
| 563 | if (widget->id == snd_soc_dapm_input && !widget->ext) |
| 564 | return 1; |
| 565 | |
| 566 | /* connected VMID/Bias for lower pops */ |
| 567 | if (widget->id == snd_soc_dapm_vmid) |
| 568 | return 1; |
| 569 | |
| 570 | /* connected jack ? */ |
| 571 | if (widget->id == snd_soc_dapm_mic || widget->id == snd_soc_dapm_line) |
| 572 | return 1; |
| 573 | } |
| 574 | |
| 575 | list_for_each_entry(path, &widget->sources, list_sink) { |
| 576 | if (path->walked) |
| 577 | continue; |
| 578 | |
| 579 | if (path->source && path->connect) { |
| 580 | path->walked = 1; |
| 581 | con += is_connected_input_ep(path->source); |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | return con; |
| 586 | } |
| 587 | |
| 588 | /* |
Jarkko Nikula | e2be2cc | 2008-06-25 14:42:07 +0300 | [diff] [blame] | 589 | * Handler for generic register modifier widget. |
| 590 | */ |
| 591 | int dapm_reg_event(struct snd_soc_dapm_widget *w, |
| 592 | struct snd_kcontrol *kcontrol, int event) |
| 593 | { |
| 594 | unsigned int val; |
| 595 | |
| 596 | if (SND_SOC_DAPM_EVENT_ON(event)) |
| 597 | val = w->on_val; |
| 598 | else |
| 599 | val = w->off_val; |
| 600 | |
| 601 | snd_soc_update_bits(w->codec, -(w->reg + 1), |
| 602 | w->mask << w->shift, val << w->shift); |
| 603 | |
| 604 | return 0; |
| 605 | } |
Mark Brown | 1158941 | 2008-07-29 11:42:23 +0100 | [diff] [blame] | 606 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
Jarkko Nikula | e2be2cc | 2008-06-25 14:42:07 +0300 | [diff] [blame] | 607 | |
Mark Brown | 025756e | 2009-04-13 11:09:18 +0100 | [diff] [blame] | 608 | /* Standard power change method, used to apply power changes to most |
| 609 | * widgets. |
| 610 | */ |
| 611 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) |
| 612 | { |
| 613 | int ret; |
| 614 | |
| 615 | /* call any power change event handlers */ |
| 616 | if (w->event) |
| 617 | pr_debug("power %s event for %s flags %x\n", |
| 618 | w->power ? "on" : "off", |
| 619 | w->name, w->event_flags); |
| 620 | |
| 621 | /* power up pre event */ |
| 622 | if (w->power && w->event && |
| 623 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { |
| 624 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); |
| 625 | if (ret < 0) |
| 626 | return ret; |
| 627 | } |
| 628 | |
| 629 | /* power down pre event */ |
| 630 | if (!w->power && w->event && |
| 631 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { |
| 632 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); |
| 633 | if (ret < 0) |
| 634 | return ret; |
| 635 | } |
| 636 | |
| 637 | /* Lower PGA volume to reduce pops */ |
| 638 | if (w->id == snd_soc_dapm_pga && !w->power) |
| 639 | dapm_set_pga(w, w->power); |
| 640 | |
| 641 | dapm_update_bits(w); |
| 642 | |
| 643 | /* Raise PGA volume to reduce pops */ |
| 644 | if (w->id == snd_soc_dapm_pga && w->power) |
| 645 | dapm_set_pga(w, w->power); |
| 646 | |
| 647 | /* power up post event */ |
| 648 | if (w->power && w->event && |
| 649 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { |
| 650 | ret = w->event(w, |
| 651 | NULL, SND_SOC_DAPM_POST_PMU); |
| 652 | if (ret < 0) |
| 653 | return ret; |
| 654 | } |
| 655 | |
| 656 | /* power down post event */ |
| 657 | if (!w->power && w->event && |
| 658 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { |
| 659 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); |
| 660 | if (ret < 0) |
| 661 | return ret; |
| 662 | } |
| 663 | |
| 664 | return 0; |
| 665 | } |
| 666 | |
Mark Brown | cd0f2d4 | 2009-04-20 16:56:59 +0100 | [diff] [blame] | 667 | /* Generic check to see if a widget should be powered. |
| 668 | */ |
| 669 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) |
| 670 | { |
| 671 | int in, out; |
| 672 | |
| 673 | in = is_connected_input_ep(w); |
| 674 | dapm_clear_walk(w->codec); |
| 675 | out = is_connected_output_ep(w); |
| 676 | dapm_clear_walk(w->codec); |
| 677 | return out != 0 && in != 0; |
| 678 | } |
| 679 | |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 680 | /* Check to see if an ADC has power */ |
| 681 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) |
| 682 | { |
| 683 | int in; |
| 684 | |
| 685 | if (w->active) { |
| 686 | in = is_connected_input_ep(w); |
| 687 | dapm_clear_walk(w->codec); |
| 688 | return in != 0; |
| 689 | } else { |
| 690 | return dapm_generic_check_power(w); |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | /* Check to see if a DAC has power */ |
| 695 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) |
| 696 | { |
| 697 | int out; |
| 698 | |
| 699 | if (w->active) { |
| 700 | out = is_connected_output_ep(w); |
| 701 | dapm_clear_walk(w->codec); |
| 702 | return out != 0; |
| 703 | } else { |
| 704 | return dapm_generic_check_power(w); |
| 705 | } |
| 706 | } |
| 707 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 708 | /* Check to see if a power supply is needed */ |
| 709 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) |
| 710 | { |
| 711 | struct snd_soc_dapm_path *path; |
| 712 | int power = 0; |
| 713 | |
| 714 | /* Check if one of our outputs is connected */ |
| 715 | list_for_each_entry(path, &w->sinks, list_source) { |
| 716 | if (path->sink && path->sink->power_check && |
| 717 | path->sink->power_check(path->sink)) { |
| 718 | power = 1; |
| 719 | break; |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | dapm_clear_walk(w->codec); |
| 724 | |
| 725 | return power; |
| 726 | } |
| 727 | |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 728 | static int dapm_seq_compare(struct snd_soc_dapm_widget *a, |
| 729 | struct snd_soc_dapm_widget *b, |
| 730 | int sort[]) |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 731 | { |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 732 | if (sort[a->id] != sort[b->id]) |
| 733 | return sort[a->id] - sort[b->id]; |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 734 | if (a->reg != b->reg) |
| 735 | return a->reg - b->reg; |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 736 | |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 737 | return 0; |
| 738 | } |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 739 | |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 740 | /* Insert a widget in order into a DAPM power sequence. */ |
| 741 | static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, |
| 742 | struct list_head *list, |
| 743 | int sort[]) |
| 744 | { |
| 745 | struct snd_soc_dapm_widget *w; |
| 746 | |
| 747 | list_for_each_entry(w, list, power_list) |
| 748 | if (dapm_seq_compare(new_widget, w, sort) < 0) { |
| 749 | list_add_tail(&new_widget->power_list, &w->power_list); |
| 750 | return; |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 751 | } |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 752 | |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 753 | list_add_tail(&new_widget->power_list, list); |
| 754 | } |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 755 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 756 | /* Apply the coalesced changes from a DAPM sequence */ |
| 757 | static void dapm_seq_run_coalesced(struct snd_soc_codec *codec, |
| 758 | struct list_head *pending) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 759 | { |
| 760 | struct snd_soc_dapm_widget *w; |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 761 | int reg, power, ret; |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 762 | unsigned int value = 0; |
| 763 | unsigned int mask = 0; |
| 764 | unsigned int cur_mask; |
| 765 | |
| 766 | reg = list_first_entry(pending, struct snd_soc_dapm_widget, |
| 767 | power_list)->reg; |
| 768 | |
| 769 | list_for_each_entry(w, pending, power_list) { |
| 770 | cur_mask = 1 << w->shift; |
| 771 | BUG_ON(reg != w->reg); |
| 772 | |
| 773 | if (w->invert) |
| 774 | power = !w->power; |
| 775 | else |
| 776 | power = w->power; |
| 777 | |
| 778 | mask |= cur_mask; |
| 779 | if (power) |
| 780 | value |= cur_mask; |
| 781 | |
| 782 | pop_dbg(codec->pop_time, |
| 783 | "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", |
| 784 | w->name, reg, value, mask); |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 785 | |
| 786 | /* power up pre event */ |
| 787 | if (w->power && w->event && |
| 788 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { |
| 789 | pop_dbg(codec->pop_time, "pop test : %s PRE_PMU\n", |
| 790 | w->name); |
| 791 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); |
| 792 | if (ret < 0) |
| 793 | pr_err("%s: pre event failed: %d\n", |
| 794 | w->name, ret); |
| 795 | } |
| 796 | |
| 797 | /* power down pre event */ |
| 798 | if (!w->power && w->event && |
| 799 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { |
| 800 | pop_dbg(codec->pop_time, "pop test : %s PRE_PMD\n", |
| 801 | w->name); |
| 802 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); |
| 803 | if (ret < 0) |
| 804 | pr_err("%s: pre event failed: %d\n", |
| 805 | w->name, ret); |
| 806 | } |
Mark Brown | 4f1c192 | 2009-06-07 13:37:44 +0100 | [diff] [blame] | 807 | |
| 808 | /* Lower PGA volume to reduce pops */ |
| 809 | if (w->id == snd_soc_dapm_pga && !w->power) |
| 810 | dapm_set_pga(w, w->power); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 811 | } |
| 812 | |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 813 | if (reg >= 0) { |
| 814 | pop_dbg(codec->pop_time, |
| 815 | "pop test : Applying 0x%x/0x%x to %x in %dms\n", |
| 816 | value, mask, reg, codec->pop_time); |
| 817 | pop_wait(codec->pop_time); |
| 818 | snd_soc_update_bits(codec, reg, mask, value); |
| 819 | } |
| 820 | |
| 821 | list_for_each_entry(w, pending, power_list) { |
Mark Brown | 4f1c192 | 2009-06-07 13:37:44 +0100 | [diff] [blame] | 822 | /* Raise PGA volume to reduce pops */ |
| 823 | if (w->id == snd_soc_dapm_pga && w->power) |
| 824 | dapm_set_pga(w, w->power); |
| 825 | |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 826 | /* power up post event */ |
| 827 | if (w->power && w->event && |
| 828 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { |
| 829 | pop_dbg(codec->pop_time, "pop test : %s POST_PMU\n", |
| 830 | w->name); |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 831 | ret = w->event(w, |
| 832 | NULL, SND_SOC_DAPM_POST_PMU); |
| 833 | if (ret < 0) |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 834 | pr_err("%s: post event failed: %d\n", |
| 835 | w->name, ret); |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 836 | } |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 837 | |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 838 | /* power down post event */ |
| 839 | if (!w->power && w->event && |
| 840 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { |
| 841 | pop_dbg(codec->pop_time, "pop test : %s POST_PMD\n", |
| 842 | w->name); |
| 843 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); |
| 844 | if (ret < 0) |
| 845 | pr_err("%s: post event failed: %d\n", |
| 846 | w->name, ret); |
| 847 | } |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 848 | } |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 849 | } |
| 850 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 851 | /* Apply a DAPM power sequence. |
| 852 | * |
| 853 | * We walk over a pre-sorted list of widgets to apply power to. In |
| 854 | * order to minimise the number of writes to the device required |
| 855 | * multiple widgets will be updated in a single write where possible. |
| 856 | * Currently anything that requires more than a single write is not |
| 857 | * handled. |
| 858 | */ |
| 859 | static void dapm_seq_run(struct snd_soc_codec *codec, struct list_head *list, |
| 860 | int event, int sort[]) |
| 861 | { |
| 862 | struct snd_soc_dapm_widget *w, *n; |
| 863 | LIST_HEAD(pending); |
| 864 | int cur_sort = -1; |
| 865 | int cur_reg = SND_SOC_NOPM; |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 866 | int ret; |
| 867 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 868 | list_for_each_entry_safe(w, n, list, power_list) { |
| 869 | ret = 0; |
| 870 | |
| 871 | /* Do we need to apply any queued changes? */ |
| 872 | if (sort[w->id] != cur_sort || w->reg != cur_reg) { |
| 873 | if (!list_empty(&pending)) |
| 874 | dapm_seq_run_coalesced(codec, &pending); |
| 875 | |
| 876 | INIT_LIST_HEAD(&pending); |
| 877 | cur_sort = -1; |
| 878 | cur_reg = SND_SOC_NOPM; |
| 879 | } |
| 880 | |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 881 | switch (w->id) { |
| 882 | case snd_soc_dapm_pre: |
| 883 | if (!w->event) |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 884 | list_for_each_entry_safe_continue(w, n, list, |
| 885 | power_list); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 886 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 887 | if (event == SND_SOC_DAPM_STREAM_START) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 888 | ret = w->event(w, |
| 889 | NULL, SND_SOC_DAPM_PRE_PMU); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 890 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 891 | ret = w->event(w, |
| 892 | NULL, SND_SOC_DAPM_PRE_PMD); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 893 | break; |
| 894 | |
| 895 | case snd_soc_dapm_post: |
| 896 | if (!w->event) |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 897 | list_for_each_entry_safe_continue(w, n, list, |
| 898 | power_list); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 899 | |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 900 | if (event == SND_SOC_DAPM_STREAM_START) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 901 | ret = w->event(w, |
| 902 | NULL, SND_SOC_DAPM_POST_PMU); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 903 | else if (event == SND_SOC_DAPM_STREAM_STOP) |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 904 | ret = w->event(w, |
| 905 | NULL, SND_SOC_DAPM_POST_PMD); |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 906 | break; |
| 907 | |
| 908 | case snd_soc_dapm_input: |
| 909 | case snd_soc_dapm_output: |
| 910 | case snd_soc_dapm_hp: |
| 911 | case snd_soc_dapm_mic: |
| 912 | case snd_soc_dapm_line: |
| 913 | case snd_soc_dapm_spk: |
| 914 | /* No register support currently */ |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 915 | ret = dapm_generic_apply_power(w); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 916 | break; |
| 917 | |
| 918 | default: |
Mark Brown | 8162810 | 2009-06-07 13:21:24 +0100 | [diff] [blame] | 919 | /* Queue it up for application */ |
| 920 | cur_sort = sort[w->id]; |
| 921 | cur_reg = w->reg; |
| 922 | list_move(&w->power_list, &pending); |
| 923 | break; |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 924 | } |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 925 | |
| 926 | if (ret < 0) |
| 927 | pr_err("Failed to apply widget power: %d\n", |
| 928 | ret); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 929 | } |
Mark Brown | b22ead2 | 2009-06-07 12:51:26 +0100 | [diff] [blame] | 930 | |
| 931 | if (!list_empty(&pending)) |
| 932 | dapm_seq_run_coalesced(codec, &pending); |
Mark Brown | 163cac0 | 2009-06-07 10:12:52 +0100 | [diff] [blame] | 933 | } |
| 934 | |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 935 | /* |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 936 | * Scan each dapm widget for complete audio path. |
| 937 | * A complete path is a route that has valid endpoints i.e.:- |
| 938 | * |
| 939 | * o DAC to output pin. |
| 940 | * o Input Pin to ADC. |
| 941 | * o Input pin to Output pin (bypass, sidetone) |
| 942 | * o DAC to ADC (loopback). |
| 943 | */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 944 | static int dapm_power_widgets(struct snd_soc_codec *codec, int event) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 945 | { |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 946 | struct snd_soc_device *socdev = codec->socdev; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 947 | struct snd_soc_dapm_widget *w; |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 948 | LIST_HEAD(up_list); |
| 949 | LIST_HEAD(down_list); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 950 | int ret = 0; |
Mark Brown | 38357ab | 2009-06-06 19:03:23 +0100 | [diff] [blame] | 951 | int power; |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 952 | int sys_power = 0; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 953 | |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 954 | /* Check which widgets we need to power and store them in |
| 955 | * lists indicating if they should be powered up or down. |
| 956 | */ |
| 957 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 958 | switch (w->id) { |
| 959 | case snd_soc_dapm_pre: |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 960 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 961 | break; |
| 962 | case snd_soc_dapm_post: |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 963 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 964 | break; |
| 965 | |
| 966 | default: |
| 967 | if (!w->power_check) |
| 968 | continue; |
| 969 | |
| 970 | power = w->power_check(w); |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 971 | if (power) |
| 972 | sys_power = 1; |
| 973 | |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 974 | if (w->power == power) |
| 975 | continue; |
| 976 | |
| 977 | if (power) |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 978 | dapm_seq_insert(w, &up_list, dapm_up_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 979 | else |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 980 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 981 | |
| 982 | w->power = power; |
| 983 | break; |
| 984 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 985 | } |
| 986 | |
Mark Brown | b14b76a | 2009-08-17 11:55:38 +0100 | [diff] [blame] | 987 | /* If there are no DAPM widgets then try to figure out power from the |
| 988 | * event type. |
| 989 | */ |
| 990 | if (list_empty(&codec->dapm_widgets)) { |
| 991 | switch (event) { |
| 992 | case SND_SOC_DAPM_STREAM_START: |
| 993 | case SND_SOC_DAPM_STREAM_RESUME: |
| 994 | sys_power = 1; |
| 995 | break; |
| 996 | case SND_SOC_DAPM_STREAM_NOP: |
| 997 | sys_power = codec->bias_level != SND_SOC_BIAS_STANDBY; |
| 998 | default: |
| 999 | break; |
| 1000 | } |
| 1001 | } |
| 1002 | |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 1003 | /* If we're changing to all on or all off then prepare */ |
| 1004 | if ((sys_power && codec->bias_level == SND_SOC_BIAS_STANDBY) || |
| 1005 | (!sys_power && codec->bias_level == SND_SOC_BIAS_ON)) { |
| 1006 | ret = snd_soc_dapm_set_bias_level(socdev, |
| 1007 | SND_SOC_BIAS_PREPARE); |
| 1008 | if (ret != 0) |
| 1009 | pr_err("Failed to prepare bias: %d\n", ret); |
| 1010 | } |
| 1011 | |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1012 | /* Power down widgets first; try to avoid amplifying pops. */ |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 1013 | dapm_seq_run(codec, &down_list, event, dapm_down_seq); |
Mark Brown | 6d3ddc8 | 2009-05-16 17:47:29 +0100 | [diff] [blame] | 1014 | |
| 1015 | /* Now power up. */ |
Mark Brown | 291f3bb | 2009-06-07 13:57:17 +0100 | [diff] [blame] | 1016 | dapm_seq_run(codec, &up_list, event, dapm_up_seq); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1017 | |
Mark Brown | 452c5ea | 2009-05-17 21:41:23 +0100 | [diff] [blame] | 1018 | /* If we just powered the last thing off drop to standby bias */ |
| 1019 | if (codec->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) { |
| 1020 | ret = snd_soc_dapm_set_bias_level(socdev, |
| 1021 | SND_SOC_BIAS_STANDBY); |
| 1022 | if (ret != 0) |
| 1023 | pr_err("Failed to apply standby bias: %d\n", ret); |
| 1024 | } |
| 1025 | |
| 1026 | /* If we just powered up then move to active bias */ |
| 1027 | if (codec->bias_level == SND_SOC_BIAS_PREPARE && sys_power) { |
| 1028 | ret = snd_soc_dapm_set_bias_level(socdev, |
| 1029 | SND_SOC_BIAS_ON); |
| 1030 | if (ret != 0) |
| 1031 | pr_err("Failed to apply active bias: %d\n", ret); |
| 1032 | } |
| 1033 | |
Mark Brown | cb507e7 | 2009-07-08 18:54:57 +0100 | [diff] [blame] | 1034 | pop_dbg(codec->pop_time, "DAPM sequencing finished, waiting %dms\n", |
| 1035 | codec->pop_time); |
| 1036 | |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 1037 | return 0; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1038 | } |
| 1039 | |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 1040 | #ifdef DEBUG |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1041 | static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action) |
| 1042 | { |
| 1043 | struct snd_soc_dapm_widget *w; |
| 1044 | struct snd_soc_dapm_path *p = NULL; |
| 1045 | int in, out; |
| 1046 | |
| 1047 | printk("DAPM %s %s\n", codec->name, action); |
| 1048 | |
| 1049 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 1050 | |
| 1051 | /* only display widgets that effect routing */ |
| 1052 | switch (w->id) { |
| 1053 | case snd_soc_dapm_pre: |
| 1054 | case snd_soc_dapm_post: |
| 1055 | case snd_soc_dapm_vmid: |
| 1056 | continue; |
| 1057 | case snd_soc_dapm_mux: |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1058 | case snd_soc_dapm_value_mux: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1059 | case snd_soc_dapm_output: |
| 1060 | case snd_soc_dapm_input: |
| 1061 | case snd_soc_dapm_switch: |
| 1062 | case snd_soc_dapm_hp: |
| 1063 | case snd_soc_dapm_mic: |
| 1064 | case snd_soc_dapm_spk: |
| 1065 | case snd_soc_dapm_line: |
| 1066 | case snd_soc_dapm_micbias: |
| 1067 | case snd_soc_dapm_dac: |
| 1068 | case snd_soc_dapm_adc: |
| 1069 | case snd_soc_dapm_pga: |
| 1070 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1071 | case snd_soc_dapm_mixer_named_ctl: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 1072 | case snd_soc_dapm_supply: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 1073 | case snd_soc_dapm_aif_in: |
| 1074 | case snd_soc_dapm_aif_out: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1075 | if (w->name) { |
| 1076 | in = is_connected_input_ep(w); |
| 1077 | dapm_clear_walk(w->codec); |
| 1078 | out = is_connected_output_ep(w); |
| 1079 | dapm_clear_walk(w->codec); |
| 1080 | printk("%s: %s in %d out %d\n", w->name, |
| 1081 | w->power ? "On":"Off",in, out); |
| 1082 | |
| 1083 | list_for_each_entry(p, &w->sources, list_sink) { |
| 1084 | if (p->connect) |
| 1085 | printk(" in %s %s\n", p->name ? p->name : "static", |
| 1086 | p->source->name); |
| 1087 | } |
| 1088 | list_for_each_entry(p, &w->sinks, list_source) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1089 | if (p->connect) |
| 1090 | printk(" out %s %s\n", p->name ? p->name : "static", |
| 1091 | p->sink->name); |
| 1092 | } |
| 1093 | } |
| 1094 | break; |
| 1095 | } |
| 1096 | } |
| 1097 | } |
| 1098 | #endif |
| 1099 | |
| 1100 | /* test and update the power status of a mux widget */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 1101 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
| 1102 | struct snd_kcontrol *kcontrol, int mask, |
Richard Zhao | cb01e2b | 2008-10-07 08:05:20 +0800 | [diff] [blame] | 1103 | int mux, int val, struct soc_enum *e) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1104 | { |
| 1105 | struct snd_soc_dapm_path *path; |
| 1106 | int found = 0; |
| 1107 | |
Peter Ujfalusi | eff317d | 2009-01-15 14:40:47 +0200 | [diff] [blame] | 1108 | if (widget->id != snd_soc_dapm_mux && |
| 1109 | widget->id != snd_soc_dapm_value_mux) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1110 | return -ENODEV; |
| 1111 | |
| 1112 | if (!snd_soc_test_bits(widget->codec, e->reg, mask, val)) |
| 1113 | return 0; |
| 1114 | |
| 1115 | /* find dapm widget path assoc with kcontrol */ |
| 1116 | list_for_each_entry(path, &widget->codec->dapm_paths, list) { |
| 1117 | if (path->kcontrol != kcontrol) |
| 1118 | continue; |
| 1119 | |
Richard Zhao | cb01e2b | 2008-10-07 08:05:20 +0800 | [diff] [blame] | 1120 | if (!path->name || !e->texts[mux]) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1121 | continue; |
| 1122 | |
| 1123 | found = 1; |
| 1124 | /* 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] | 1125 | if (!(strcmp(path->name, e->texts[mux]))) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1126 | path->connect = 1; /* new connection */ |
| 1127 | else |
| 1128 | path->connect = 0; /* old connection must be powered down */ |
| 1129 | } |
| 1130 | |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 1131 | if (found) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1132 | dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP); |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 1133 | dump_dapm(widget->codec, "mux power update"); |
| 1134 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1135 | |
| 1136 | return 0; |
| 1137 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1138 | |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 1139 | /* test and update the power status of a mixer or switch widget */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 1140 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
| 1141 | struct snd_kcontrol *kcontrol, int reg, |
| 1142 | int val_mask, int val, int invert) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1143 | { |
| 1144 | struct snd_soc_dapm_path *path; |
| 1145 | int found = 0; |
| 1146 | |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 1147 | if (widget->id != snd_soc_dapm_mixer && |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1148 | widget->id != snd_soc_dapm_mixer_named_ctl && |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 1149 | widget->id != snd_soc_dapm_switch) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1150 | return -ENODEV; |
| 1151 | |
| 1152 | if (!snd_soc_test_bits(widget->codec, reg, val_mask, val)) |
| 1153 | return 0; |
| 1154 | |
| 1155 | /* find dapm widget path assoc with kcontrol */ |
| 1156 | list_for_each_entry(path, &widget->codec->dapm_paths, list) { |
| 1157 | if (path->kcontrol != kcontrol) |
| 1158 | continue; |
| 1159 | |
| 1160 | /* found, now check type */ |
| 1161 | found = 1; |
| 1162 | if (val) |
| 1163 | /* new connection */ |
| 1164 | path->connect = invert ? 0:1; |
| 1165 | else |
| 1166 | /* old connection must be powered down */ |
| 1167 | path->connect = invert ? 1:0; |
| 1168 | break; |
| 1169 | } |
| 1170 | |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 1171 | if (found) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1172 | dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP); |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 1173 | dump_dapm(widget->codec, "mixer power update"); |
| 1174 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1175 | |
| 1176 | return 0; |
| 1177 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1178 | |
| 1179 | /* show dapm widget status in sys fs */ |
| 1180 | static ssize_t dapm_widget_show(struct device *dev, |
| 1181 | struct device_attribute *attr, char *buf) |
| 1182 | { |
| 1183 | struct snd_soc_device *devdata = dev_get_drvdata(dev); |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 1184 | struct snd_soc_codec *codec = devdata->card->codec; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1185 | struct snd_soc_dapm_widget *w; |
| 1186 | int count = 0; |
| 1187 | char *state = "not set"; |
| 1188 | |
| 1189 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 1190 | |
| 1191 | /* only display widgets that burnm power */ |
| 1192 | switch (w->id) { |
| 1193 | case snd_soc_dapm_hp: |
| 1194 | case snd_soc_dapm_mic: |
| 1195 | case snd_soc_dapm_spk: |
| 1196 | case snd_soc_dapm_line: |
| 1197 | case snd_soc_dapm_micbias: |
| 1198 | case snd_soc_dapm_dac: |
| 1199 | case snd_soc_dapm_adc: |
| 1200 | case snd_soc_dapm_pga: |
| 1201 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1202 | case snd_soc_dapm_mixer_named_ctl: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 1203 | case snd_soc_dapm_supply: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1204 | if (w->name) |
| 1205 | count += sprintf(buf + count, "%s: %s\n", |
| 1206 | w->name, w->power ? "On":"Off"); |
| 1207 | break; |
| 1208 | default: |
| 1209 | break; |
| 1210 | } |
| 1211 | } |
| 1212 | |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1213 | switch (codec->bias_level) { |
| 1214 | case SND_SOC_BIAS_ON: |
| 1215 | state = "On"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1216 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1217 | case SND_SOC_BIAS_PREPARE: |
| 1218 | state = "Prepare"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1219 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1220 | case SND_SOC_BIAS_STANDBY: |
| 1221 | state = "Standby"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1222 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1223 | case SND_SOC_BIAS_OFF: |
| 1224 | state = "Off"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1225 | break; |
| 1226 | } |
| 1227 | count += sprintf(buf + count, "PM State: %s\n", state); |
| 1228 | |
| 1229 | return count; |
| 1230 | } |
| 1231 | |
| 1232 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
| 1233 | |
| 1234 | int snd_soc_dapm_sys_add(struct device *dev) |
| 1235 | { |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 1236 | return device_create_file(dev, &dev_attr_dapm_widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1237 | } |
| 1238 | |
| 1239 | static void snd_soc_dapm_sys_remove(struct device *dev) |
| 1240 | { |
Mark Brown | aef9084 | 2009-05-16 17:53:16 +0100 | [diff] [blame] | 1241 | device_remove_file(dev, &dev_attr_dapm_widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1242 | } |
| 1243 | |
| 1244 | /* free all dapm widgets and resources */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 1245 | static void dapm_free_widgets(struct snd_soc_codec *codec) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1246 | { |
| 1247 | struct snd_soc_dapm_widget *w, *next_w; |
| 1248 | struct snd_soc_dapm_path *p, *next_p; |
| 1249 | |
| 1250 | list_for_each_entry_safe(w, next_w, &codec->dapm_widgets, list) { |
| 1251 | list_del(&w->list); |
| 1252 | kfree(w); |
| 1253 | } |
| 1254 | |
| 1255 | list_for_each_entry_safe(p, next_p, &codec->dapm_paths, list) { |
| 1256 | list_del(&p->list); |
| 1257 | kfree(p->long_name); |
| 1258 | kfree(p); |
| 1259 | } |
| 1260 | } |
| 1261 | |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1262 | static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec, |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 1263 | const char *pin, int status) |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1264 | { |
| 1265 | struct snd_soc_dapm_widget *w; |
| 1266 | |
| 1267 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 1268 | if (!strcmp(w->name, pin)) { |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 1269 | pr_debug("dapm: %s: pin %s\n", codec->name, pin); |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1270 | w->connected = status; |
| 1271 | return 0; |
| 1272 | } |
| 1273 | } |
| 1274 | |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 1275 | pr_err("dapm: %s: configuring unknown pin %s\n", codec->name, pin); |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1276 | return -EINVAL; |
| 1277 | } |
| 1278 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1279 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1280 | * snd_soc_dapm_sync - scan and power dapm paths |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1281 | * @codec: audio codec |
| 1282 | * |
| 1283 | * Walks all dapm audio paths and powers widgets according to their |
| 1284 | * stream or path usage. |
| 1285 | * |
| 1286 | * Returns 0 for success. |
| 1287 | */ |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1288 | int snd_soc_dapm_sync(struct snd_soc_codec *codec) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1289 | { |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 1290 | int ret = dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP); |
| 1291 | dump_dapm(codec, "sync"); |
| 1292 | return ret; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1293 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1294 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1295 | |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1296 | static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, |
| 1297 | const char *sink, const char *control, const char *source) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1298 | { |
| 1299 | struct snd_soc_dapm_path *path; |
| 1300 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; |
| 1301 | int ret = 0; |
| 1302 | |
| 1303 | /* find src and dest widgets */ |
| 1304 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 1305 | |
| 1306 | if (!wsink && !(strcmp(w->name, sink))) { |
| 1307 | wsink = w; |
| 1308 | continue; |
| 1309 | } |
| 1310 | if (!wsource && !(strcmp(w->name, source))) { |
| 1311 | wsource = w; |
| 1312 | } |
| 1313 | } |
| 1314 | |
| 1315 | if (wsource == NULL || wsink == NULL) |
| 1316 | return -ENODEV; |
| 1317 | |
| 1318 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
| 1319 | if (!path) |
| 1320 | return -ENOMEM; |
| 1321 | |
| 1322 | path->source = wsource; |
| 1323 | path->sink = wsink; |
| 1324 | INIT_LIST_HEAD(&path->list); |
| 1325 | INIT_LIST_HEAD(&path->list_source); |
| 1326 | INIT_LIST_HEAD(&path->list_sink); |
| 1327 | |
| 1328 | /* check for external widgets */ |
| 1329 | if (wsink->id == snd_soc_dapm_input) { |
| 1330 | if (wsource->id == snd_soc_dapm_micbias || |
| 1331 | wsource->id == snd_soc_dapm_mic || |
Rongrong Cao | 087d53a | 2009-07-10 20:13:30 +0100 | [diff] [blame] | 1332 | wsource->id == snd_soc_dapm_line || |
| 1333 | wsource->id == snd_soc_dapm_output) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1334 | wsink->ext = 1; |
| 1335 | } |
| 1336 | if (wsource->id == snd_soc_dapm_output) { |
| 1337 | if (wsink->id == snd_soc_dapm_spk || |
| 1338 | wsink->id == snd_soc_dapm_hp || |
Seth Forshee | 1e39221 | 2007-04-16 15:36:42 +0200 | [diff] [blame] | 1339 | wsink->id == snd_soc_dapm_line || |
| 1340 | wsink->id == snd_soc_dapm_input) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1341 | wsource->ext = 1; |
| 1342 | } |
| 1343 | |
| 1344 | /* connect static paths */ |
| 1345 | if (control == NULL) { |
| 1346 | list_add(&path->list, &codec->dapm_paths); |
| 1347 | list_add(&path->list_sink, &wsink->sources); |
| 1348 | list_add(&path->list_source, &wsource->sinks); |
| 1349 | path->connect = 1; |
| 1350 | return 0; |
| 1351 | } |
| 1352 | |
| 1353 | /* connect dynamic paths */ |
| 1354 | switch(wsink->id) { |
| 1355 | case snd_soc_dapm_adc: |
| 1356 | case snd_soc_dapm_dac: |
| 1357 | case snd_soc_dapm_pga: |
| 1358 | case snd_soc_dapm_input: |
| 1359 | case snd_soc_dapm_output: |
| 1360 | case snd_soc_dapm_micbias: |
| 1361 | case snd_soc_dapm_vmid: |
| 1362 | case snd_soc_dapm_pre: |
| 1363 | case snd_soc_dapm_post: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 1364 | case snd_soc_dapm_supply: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 1365 | case snd_soc_dapm_aif_in: |
| 1366 | case snd_soc_dapm_aif_out: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1367 | list_add(&path->list, &codec->dapm_paths); |
| 1368 | list_add(&path->list_sink, &wsink->sources); |
| 1369 | list_add(&path->list_source, &wsource->sinks); |
| 1370 | path->connect = 1; |
| 1371 | return 0; |
| 1372 | case snd_soc_dapm_mux: |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1373 | case snd_soc_dapm_value_mux: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1374 | ret = dapm_connect_mux(codec, wsource, wsink, path, control, |
| 1375 | &wsink->kcontrols[0]); |
| 1376 | if (ret != 0) |
| 1377 | goto err; |
| 1378 | break; |
| 1379 | case snd_soc_dapm_switch: |
| 1380 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1381 | case snd_soc_dapm_mixer_named_ctl: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1382 | ret = dapm_connect_mixer(codec, wsource, wsink, path, control); |
| 1383 | if (ret != 0) |
| 1384 | goto err; |
| 1385 | break; |
| 1386 | case snd_soc_dapm_hp: |
| 1387 | case snd_soc_dapm_mic: |
| 1388 | case snd_soc_dapm_line: |
| 1389 | case snd_soc_dapm_spk: |
| 1390 | list_add(&path->list, &codec->dapm_paths); |
| 1391 | list_add(&path->list_sink, &wsink->sources); |
| 1392 | list_add(&path->list_source, &wsource->sinks); |
| 1393 | path->connect = 0; |
| 1394 | return 0; |
| 1395 | } |
| 1396 | return 0; |
| 1397 | |
| 1398 | err: |
| 1399 | printk(KERN_WARNING "asoc: no dapm match for %s --> %s --> %s\n", source, |
| 1400 | control, sink); |
| 1401 | kfree(path); |
| 1402 | return ret; |
| 1403 | } |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1404 | |
| 1405 | /** |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1406 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets |
| 1407 | * @codec: codec |
| 1408 | * @route: audio routes |
| 1409 | * @num: number of routes |
| 1410 | * |
| 1411 | * Connects 2 dapm widgets together via a named audio path. The sink is |
| 1412 | * the widget receiving the audio signal, whilst the source is the sender |
| 1413 | * of the audio signal. |
| 1414 | * |
| 1415 | * Returns 0 for success else error. On error all resources can be freed |
| 1416 | * with a call to snd_soc_card_free(). |
| 1417 | */ |
| 1418 | int snd_soc_dapm_add_routes(struct snd_soc_codec *codec, |
| 1419 | const struct snd_soc_dapm_route *route, int num) |
| 1420 | { |
| 1421 | int i, ret; |
| 1422 | |
| 1423 | for (i = 0; i < num; i++) { |
| 1424 | ret = snd_soc_dapm_add_route(codec, route->sink, |
| 1425 | route->control, route->source); |
| 1426 | if (ret < 0) { |
| 1427 | printk(KERN_ERR "Failed to add route %s->%s\n", |
| 1428 | route->source, |
| 1429 | route->sink); |
| 1430 | return ret; |
| 1431 | } |
| 1432 | route++; |
| 1433 | } |
| 1434 | |
| 1435 | return 0; |
| 1436 | } |
| 1437 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); |
| 1438 | |
| 1439 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1440 | * snd_soc_dapm_new_widgets - add new dapm widgets |
| 1441 | * @codec: audio codec |
| 1442 | * |
| 1443 | * Checks the codec for any new dapm widgets and creates them if found. |
| 1444 | * |
| 1445 | * Returns 0 for success. |
| 1446 | */ |
| 1447 | int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec) |
| 1448 | { |
| 1449 | struct snd_soc_dapm_widget *w; |
| 1450 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1451 | list_for_each_entry(w, &codec->dapm_widgets, list) |
| 1452 | { |
| 1453 | if (w->new) |
| 1454 | continue; |
| 1455 | |
| 1456 | switch(w->id) { |
| 1457 | case snd_soc_dapm_switch: |
| 1458 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1459 | case snd_soc_dapm_mixer_named_ctl: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1460 | w->power_check = dapm_generic_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1461 | dapm_new_mixer(codec, w); |
| 1462 | break; |
| 1463 | case snd_soc_dapm_mux: |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1464 | case snd_soc_dapm_value_mux: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1465 | w->power_check = dapm_generic_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1466 | dapm_new_mux(codec, w); |
| 1467 | break; |
| 1468 | case snd_soc_dapm_adc: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 1469 | case snd_soc_dapm_aif_out: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1470 | w->power_check = dapm_adc_check_power; |
| 1471 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1472 | case snd_soc_dapm_dac: |
Mark Brown | 010ff26 | 2009-08-17 17:39:22 +0100 | [diff] [blame^] | 1473 | case snd_soc_dapm_aif_in: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1474 | w->power_check = dapm_dac_check_power; |
| 1475 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1476 | case snd_soc_dapm_pga: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1477 | w->power_check = dapm_generic_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1478 | dapm_new_pga(codec, w); |
| 1479 | break; |
| 1480 | case snd_soc_dapm_input: |
| 1481 | case snd_soc_dapm_output: |
| 1482 | case snd_soc_dapm_micbias: |
| 1483 | case snd_soc_dapm_spk: |
| 1484 | case snd_soc_dapm_hp: |
| 1485 | case snd_soc_dapm_mic: |
| 1486 | case snd_soc_dapm_line: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1487 | w->power_check = dapm_generic_check_power; |
| 1488 | break; |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame] | 1489 | case snd_soc_dapm_supply: |
| 1490 | w->power_check = dapm_supply_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1491 | case snd_soc_dapm_vmid: |
| 1492 | case snd_soc_dapm_pre: |
| 1493 | case snd_soc_dapm_post: |
| 1494 | break; |
| 1495 | } |
| 1496 | w->new = 1; |
| 1497 | } |
| 1498 | |
| 1499 | dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1500 | return 0; |
| 1501 | } |
| 1502 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); |
| 1503 | |
| 1504 | /** |
| 1505 | * snd_soc_dapm_get_volsw - dapm mixer get callback |
| 1506 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1507 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1508 | * |
| 1509 | * Callback to get the value of a dapm mixer control. |
| 1510 | * |
| 1511 | * Returns 0 for success. |
| 1512 | */ |
| 1513 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, |
| 1514 | struct snd_ctl_elem_value *ucontrol) |
| 1515 | { |
| 1516 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1517 | struct soc_mixer_control *mc = |
| 1518 | (struct soc_mixer_control *)kcontrol->private_value; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1519 | unsigned int reg = mc->reg; |
| 1520 | unsigned int shift = mc->shift; |
| 1521 | unsigned int rshift = mc->rshift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1522 | int max = mc->max; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1523 | unsigned int invert = mc->invert; |
| 1524 | unsigned int mask = (1 << fls(max)) - 1; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1525 | |
| 1526 | /* return the saved value if we are powered down */ |
| 1527 | if (widget->id == snd_soc_dapm_pga && !widget->power) { |
| 1528 | ucontrol->value.integer.value[0] = widget->saved_value; |
| 1529 | return 0; |
| 1530 | } |
| 1531 | |
| 1532 | ucontrol->value.integer.value[0] = |
| 1533 | (snd_soc_read(widget->codec, reg) >> shift) & mask; |
| 1534 | if (shift != rshift) |
| 1535 | ucontrol->value.integer.value[1] = |
| 1536 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; |
| 1537 | if (invert) { |
| 1538 | ucontrol->value.integer.value[0] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1539 | max - ucontrol->value.integer.value[0]; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1540 | if (shift != rshift) |
| 1541 | ucontrol->value.integer.value[1] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1542 | max - ucontrol->value.integer.value[1]; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1543 | } |
| 1544 | |
| 1545 | return 0; |
| 1546 | } |
| 1547 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); |
| 1548 | |
| 1549 | /** |
| 1550 | * snd_soc_dapm_put_volsw - dapm mixer set callback |
| 1551 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1552 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1553 | * |
| 1554 | * Callback to set the value of a dapm mixer control. |
| 1555 | * |
| 1556 | * Returns 0 for success. |
| 1557 | */ |
| 1558 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, |
| 1559 | struct snd_ctl_elem_value *ucontrol) |
| 1560 | { |
| 1561 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1562 | struct soc_mixer_control *mc = |
| 1563 | (struct soc_mixer_control *)kcontrol->private_value; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1564 | unsigned int reg = mc->reg; |
| 1565 | unsigned int shift = mc->shift; |
| 1566 | unsigned int rshift = mc->rshift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1567 | int max = mc->max; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1568 | unsigned int mask = (1 << fls(max)) - 1; |
| 1569 | unsigned int invert = mc->invert; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1570 | unsigned int val, val2, val_mask; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1571 | int ret; |
| 1572 | |
| 1573 | val = (ucontrol->value.integer.value[0] & mask); |
| 1574 | |
| 1575 | if (invert) |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1576 | val = max - val; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1577 | val_mask = mask << shift; |
| 1578 | val = val << shift; |
| 1579 | if (shift != rshift) { |
| 1580 | val2 = (ucontrol->value.integer.value[1] & mask); |
| 1581 | if (invert) |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1582 | val2 = max - val2; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1583 | val_mask |= mask << rshift; |
| 1584 | val |= val2 << rshift; |
| 1585 | } |
| 1586 | |
| 1587 | mutex_lock(&widget->codec->mutex); |
| 1588 | widget->value = val; |
| 1589 | |
| 1590 | /* save volume value if the widget is powered down */ |
| 1591 | if (widget->id == snd_soc_dapm_pga && !widget->power) { |
| 1592 | widget->saved_value = val; |
| 1593 | mutex_unlock(&widget->codec->mutex); |
| 1594 | return 1; |
| 1595 | } |
| 1596 | |
| 1597 | dapm_mixer_update_power(widget, kcontrol, reg, val_mask, val, invert); |
| 1598 | if (widget->event) { |
| 1599 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1600 | ret = widget->event(widget, kcontrol, |
| 1601 | SND_SOC_DAPM_PRE_REG); |
| 1602 | if (ret < 0) { |
| 1603 | ret = 1; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1604 | goto out; |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1605 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1606 | } |
| 1607 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); |
| 1608 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1609 | ret = widget->event(widget, kcontrol, |
| 1610 | SND_SOC_DAPM_POST_REG); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1611 | } else |
| 1612 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); |
| 1613 | |
| 1614 | out: |
| 1615 | mutex_unlock(&widget->codec->mutex); |
| 1616 | return ret; |
| 1617 | } |
| 1618 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); |
| 1619 | |
| 1620 | /** |
| 1621 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback |
| 1622 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1623 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1624 | * |
| 1625 | * Callback to get the value of a dapm enumerated double mixer control. |
| 1626 | * |
| 1627 | * Returns 0 for success. |
| 1628 | */ |
| 1629 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, |
| 1630 | struct snd_ctl_elem_value *ucontrol) |
| 1631 | { |
| 1632 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
| 1633 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1634 | unsigned int val, bitmask; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1635 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1636 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1637 | ; |
| 1638 | val = snd_soc_read(widget->codec, e->reg); |
| 1639 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); |
| 1640 | if (e->shift_l != e->shift_r) |
| 1641 | ucontrol->value.enumerated.item[1] = |
| 1642 | (val >> e->shift_r) & (bitmask - 1); |
| 1643 | |
| 1644 | return 0; |
| 1645 | } |
| 1646 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
| 1647 | |
| 1648 | /** |
| 1649 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
| 1650 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1651 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1652 | * |
| 1653 | * Callback to set the value of a dapm enumerated double mixer control. |
| 1654 | * |
| 1655 | * Returns 0 for success. |
| 1656 | */ |
| 1657 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
| 1658 | struct snd_ctl_elem_value *ucontrol) |
| 1659 | { |
| 1660 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
| 1661 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1662 | unsigned int val, mux; |
| 1663 | unsigned int mask, bitmask; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1664 | int ret = 0; |
| 1665 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1666 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1667 | ; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1668 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1669 | return -EINVAL; |
| 1670 | mux = ucontrol->value.enumerated.item[0]; |
| 1671 | val = mux << e->shift_l; |
| 1672 | mask = (bitmask - 1) << e->shift_l; |
| 1673 | if (e->shift_l != e->shift_r) { |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1674 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1675 | return -EINVAL; |
| 1676 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; |
| 1677 | mask |= (bitmask - 1) << e->shift_r; |
| 1678 | } |
| 1679 | |
| 1680 | mutex_lock(&widget->codec->mutex); |
| 1681 | widget->value = val; |
Richard Zhao | cb01e2b | 2008-10-07 08:05:20 +0800 | [diff] [blame] | 1682 | dapm_mux_update_power(widget, kcontrol, mask, mux, val, e); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1683 | if (widget->event) { |
| 1684 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1685 | ret = widget->event(widget, |
| 1686 | kcontrol, SND_SOC_DAPM_PRE_REG); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1687 | if (ret < 0) |
| 1688 | goto out; |
| 1689 | } |
| 1690 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); |
| 1691 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1692 | ret = widget->event(widget, |
| 1693 | kcontrol, SND_SOC_DAPM_POST_REG); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1694 | } else |
| 1695 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); |
| 1696 | |
| 1697 | out: |
| 1698 | mutex_unlock(&widget->codec->mutex); |
| 1699 | return ret; |
| 1700 | } |
| 1701 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
| 1702 | |
| 1703 | /** |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1704 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get |
| 1705 | * callback |
| 1706 | * @kcontrol: mixer control |
| 1707 | * @ucontrol: control element information |
| 1708 | * |
| 1709 | * Callback to get the value of a dapm semi enumerated double mixer control. |
| 1710 | * |
| 1711 | * Semi enumerated mixer: the enumerated items are referred as values. Can be |
| 1712 | * used for handling bitfield coded enumeration for example. |
| 1713 | * |
| 1714 | * Returns 0 for success. |
| 1715 | */ |
| 1716 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, |
| 1717 | struct snd_ctl_elem_value *ucontrol) |
| 1718 | { |
| 1719 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1720 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1721 | unsigned int reg_val, val, mux; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1722 | |
| 1723 | reg_val = snd_soc_read(widget->codec, e->reg); |
| 1724 | val = (reg_val >> e->shift_l) & e->mask; |
| 1725 | for (mux = 0; mux < e->max; mux++) { |
| 1726 | if (val == e->values[mux]) |
| 1727 | break; |
| 1728 | } |
| 1729 | ucontrol->value.enumerated.item[0] = mux; |
| 1730 | if (e->shift_l != e->shift_r) { |
| 1731 | val = (reg_val >> e->shift_r) & e->mask; |
| 1732 | for (mux = 0; mux < e->max; mux++) { |
| 1733 | if (val == e->values[mux]) |
| 1734 | break; |
| 1735 | } |
| 1736 | ucontrol->value.enumerated.item[1] = mux; |
| 1737 | } |
| 1738 | |
| 1739 | return 0; |
| 1740 | } |
| 1741 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); |
| 1742 | |
| 1743 | /** |
| 1744 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set |
| 1745 | * callback |
| 1746 | * @kcontrol: mixer control |
| 1747 | * @ucontrol: control element information |
| 1748 | * |
| 1749 | * Callback to set the value of a dapm semi enumerated double mixer control. |
| 1750 | * |
| 1751 | * Semi enumerated mixer: the enumerated items are referred as values. Can be |
| 1752 | * used for handling bitfield coded enumeration for example. |
| 1753 | * |
| 1754 | * Returns 0 for success. |
| 1755 | */ |
| 1756 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, |
| 1757 | struct snd_ctl_elem_value *ucontrol) |
| 1758 | { |
| 1759 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1760 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Daniel Ribeiro | 46f5822 | 2009-06-07 02:49:11 -0300 | [diff] [blame] | 1761 | unsigned int val, mux; |
| 1762 | unsigned int mask; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1763 | int ret = 0; |
| 1764 | |
| 1765 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
| 1766 | return -EINVAL; |
| 1767 | mux = ucontrol->value.enumerated.item[0]; |
| 1768 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; |
| 1769 | mask = e->mask << e->shift_l; |
| 1770 | if (e->shift_l != e->shift_r) { |
| 1771 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
| 1772 | return -EINVAL; |
| 1773 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; |
| 1774 | mask |= e->mask << e->shift_r; |
| 1775 | } |
| 1776 | |
| 1777 | mutex_lock(&widget->codec->mutex); |
| 1778 | widget->value = val; |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1779 | dapm_mux_update_power(widget, kcontrol, mask, mux, val, e); |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1780 | if (widget->event) { |
| 1781 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { |
| 1782 | ret = widget->event(widget, |
| 1783 | kcontrol, SND_SOC_DAPM_PRE_REG); |
| 1784 | if (ret < 0) |
| 1785 | goto out; |
| 1786 | } |
| 1787 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); |
| 1788 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) |
| 1789 | ret = widget->event(widget, |
| 1790 | kcontrol, SND_SOC_DAPM_POST_REG); |
| 1791 | } else |
| 1792 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); |
| 1793 | |
| 1794 | out: |
| 1795 | mutex_unlock(&widget->codec->mutex); |
| 1796 | return ret; |
| 1797 | } |
| 1798 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); |
| 1799 | |
| 1800 | /** |
Mark Brown | 8b37dbd | 2009-02-28 21:14:20 +0000 | [diff] [blame] | 1801 | * snd_soc_dapm_info_pin_switch - Info for a pin switch |
| 1802 | * |
| 1803 | * @kcontrol: mixer control |
| 1804 | * @uinfo: control element information |
| 1805 | * |
| 1806 | * Callback to provide information about a pin switch control. |
| 1807 | */ |
| 1808 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, |
| 1809 | struct snd_ctl_elem_info *uinfo) |
| 1810 | { |
| 1811 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 1812 | uinfo->count = 1; |
| 1813 | uinfo->value.integer.min = 0; |
| 1814 | uinfo->value.integer.max = 1; |
| 1815 | |
| 1816 | return 0; |
| 1817 | } |
| 1818 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); |
| 1819 | |
| 1820 | /** |
| 1821 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch |
| 1822 | * |
| 1823 | * @kcontrol: mixer control |
| 1824 | * @ucontrol: Value |
| 1825 | */ |
| 1826 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, |
| 1827 | struct snd_ctl_elem_value *ucontrol) |
| 1828 | { |
| 1829 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 1830 | const char *pin = (const char *)kcontrol->private_value; |
| 1831 | |
| 1832 | mutex_lock(&codec->mutex); |
| 1833 | |
| 1834 | ucontrol->value.integer.value[0] = |
| 1835 | snd_soc_dapm_get_pin_status(codec, pin); |
| 1836 | |
| 1837 | mutex_unlock(&codec->mutex); |
| 1838 | |
| 1839 | return 0; |
| 1840 | } |
| 1841 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); |
| 1842 | |
| 1843 | /** |
| 1844 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch |
| 1845 | * |
| 1846 | * @kcontrol: mixer control |
| 1847 | * @ucontrol: Value |
| 1848 | */ |
| 1849 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, |
| 1850 | struct snd_ctl_elem_value *ucontrol) |
| 1851 | { |
| 1852 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 1853 | const char *pin = (const char *)kcontrol->private_value; |
| 1854 | |
| 1855 | mutex_lock(&codec->mutex); |
| 1856 | |
| 1857 | if (ucontrol->value.integer.value[0]) |
| 1858 | snd_soc_dapm_enable_pin(codec, pin); |
| 1859 | else |
| 1860 | snd_soc_dapm_disable_pin(codec, pin); |
| 1861 | |
| 1862 | snd_soc_dapm_sync(codec); |
| 1863 | |
| 1864 | mutex_unlock(&codec->mutex); |
| 1865 | |
| 1866 | return 0; |
| 1867 | } |
| 1868 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); |
| 1869 | |
| 1870 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1871 | * snd_soc_dapm_new_control - create new dapm control |
| 1872 | * @codec: audio codec |
| 1873 | * @widget: widget template |
| 1874 | * |
| 1875 | * Creates a new dapm control based upon the template. |
| 1876 | * |
| 1877 | * Returns 0 for success else error. |
| 1878 | */ |
| 1879 | int snd_soc_dapm_new_control(struct snd_soc_codec *codec, |
| 1880 | const struct snd_soc_dapm_widget *widget) |
| 1881 | { |
| 1882 | struct snd_soc_dapm_widget *w; |
| 1883 | |
| 1884 | if ((w = dapm_cnew_widget(widget)) == NULL) |
| 1885 | return -ENOMEM; |
| 1886 | |
| 1887 | w->codec = codec; |
| 1888 | INIT_LIST_HEAD(&w->sources); |
| 1889 | INIT_LIST_HEAD(&w->sinks); |
| 1890 | INIT_LIST_HEAD(&w->list); |
| 1891 | list_add(&w->list, &codec->dapm_widgets); |
| 1892 | |
| 1893 | /* machine layer set ups unconnected pins and insertions */ |
| 1894 | w->connected = 1; |
| 1895 | return 0; |
| 1896 | } |
| 1897 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); |
| 1898 | |
| 1899 | /** |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 1900 | * snd_soc_dapm_new_controls - create new dapm controls |
| 1901 | * @codec: audio codec |
| 1902 | * @widget: widget array |
| 1903 | * @num: number of widgets |
| 1904 | * |
| 1905 | * Creates new DAPM controls based upon the templates. |
| 1906 | * |
| 1907 | * Returns 0 for success else error. |
| 1908 | */ |
| 1909 | int snd_soc_dapm_new_controls(struct snd_soc_codec *codec, |
| 1910 | const struct snd_soc_dapm_widget *widget, |
| 1911 | int num) |
| 1912 | { |
| 1913 | int i, ret; |
| 1914 | |
| 1915 | for (i = 0; i < num; i++) { |
| 1916 | ret = snd_soc_dapm_new_control(codec, widget); |
Mark Brown | b8b33cb | 2008-12-18 11:19:30 +0000 | [diff] [blame] | 1917 | if (ret < 0) { |
| 1918 | printk(KERN_ERR |
| 1919 | "ASoC: Failed to create DAPM control %s: %d\n", |
| 1920 | widget->name, ret); |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 1921 | return ret; |
Mark Brown | b8b33cb | 2008-12-18 11:19:30 +0000 | [diff] [blame] | 1922 | } |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 1923 | widget++; |
| 1924 | } |
| 1925 | return 0; |
| 1926 | } |
| 1927 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); |
| 1928 | |
| 1929 | |
| 1930 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1931 | * snd_soc_dapm_stream_event - send a stream event to the dapm core |
| 1932 | * @codec: audio codec |
| 1933 | * @stream: stream name |
| 1934 | * @event: stream event |
| 1935 | * |
| 1936 | * Sends a stream event to the dapm core. The core then makes any |
| 1937 | * necessary widget power changes. |
| 1938 | * |
| 1939 | * Returns 0 for success else error. |
| 1940 | */ |
| 1941 | int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, |
| 1942 | char *stream, int event) |
| 1943 | { |
| 1944 | struct snd_soc_dapm_widget *w; |
| 1945 | |
Seth Forshee | 11da21a | 2007-02-02 17:14:19 +0100 | [diff] [blame] | 1946 | if (stream == NULL) |
| 1947 | return 0; |
| 1948 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1949 | mutex_lock(&codec->mutex); |
| 1950 | list_for_each_entry(w, &codec->dapm_widgets, list) |
| 1951 | { |
| 1952 | if (!w->sname) |
| 1953 | continue; |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 1954 | pr_debug("widget %s\n %s stream %s event %d\n", |
| 1955 | w->name, w->sname, stream, event); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1956 | if (strstr(w->sname, stream)) { |
| 1957 | switch(event) { |
| 1958 | case SND_SOC_DAPM_STREAM_START: |
| 1959 | w->active = 1; |
| 1960 | break; |
| 1961 | case SND_SOC_DAPM_STREAM_STOP: |
| 1962 | w->active = 0; |
| 1963 | break; |
| 1964 | case SND_SOC_DAPM_STREAM_SUSPEND: |
| 1965 | if (w->active) |
| 1966 | w->suspend = 1; |
| 1967 | w->active = 0; |
| 1968 | break; |
| 1969 | case SND_SOC_DAPM_STREAM_RESUME: |
| 1970 | if (w->suspend) { |
| 1971 | w->active = 1; |
| 1972 | w->suspend = 0; |
| 1973 | } |
| 1974 | break; |
| 1975 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
| 1976 | break; |
| 1977 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
| 1978 | break; |
| 1979 | } |
| 1980 | } |
| 1981 | } |
| 1982 | mutex_unlock(&codec->mutex); |
| 1983 | |
| 1984 | dapm_power_widgets(codec, event); |
Harvey Harrison | 9bf8e7d | 2008-03-03 15:32:18 -0800 | [diff] [blame] | 1985 | dump_dapm(codec, __func__); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1986 | return 0; |
| 1987 | } |
| 1988 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); |
| 1989 | |
| 1990 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1991 | * snd_soc_dapm_enable_pin - enable pin. |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1992 | * @codec: SoC codec |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1993 | * @pin: pin name |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1994 | * |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 1995 | * 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] | 1996 | * a valid audio route and active audio stream. |
| 1997 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 1998 | * do any widget power switching. |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1999 | */ |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 2000 | int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2001 | { |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2002 | return snd_soc_dapm_set_pin(codec, pin, 1); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2003 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2004 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2005 | |
| 2006 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2007 | * snd_soc_dapm_disable_pin - disable pin. |
| 2008 | * @codec: SoC codec |
| 2009 | * @pin: pin name |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2010 | * |
Mark Brown | 74b8f95 | 2009-06-06 11:26:15 +0100 | [diff] [blame] | 2011 | * Disables input/output pin and its parents or children widgets. |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2012 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 2013 | * do any widget power switching. |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2014 | */ |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 2015 | int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin) |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2016 | { |
| 2017 | return snd_soc_dapm_set_pin(codec, pin, 0); |
| 2018 | } |
| 2019 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
| 2020 | |
| 2021 | /** |
Mark Brown | 5817b52 | 2008-09-24 11:23:11 +0100 | [diff] [blame] | 2022 | * snd_soc_dapm_nc_pin - permanently disable pin. |
| 2023 | * @codec: SoC codec |
| 2024 | * @pin: pin name |
| 2025 | * |
| 2026 | * Marks the specified pin as being not connected, disabling it along |
| 2027 | * any parent or child widgets. At present this is identical to |
| 2028 | * snd_soc_dapm_disable_pin() but in future it will be extended to do |
| 2029 | * additional things such as disabling controls which only affect |
| 2030 | * paths through the pin. |
| 2031 | * |
| 2032 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 2033 | * do any widget power switching. |
| 2034 | */ |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 2035 | int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin) |
Mark Brown | 5817b52 | 2008-09-24 11:23:11 +0100 | [diff] [blame] | 2036 | { |
| 2037 | return snd_soc_dapm_set_pin(codec, pin, 0); |
| 2038 | } |
| 2039 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); |
| 2040 | |
| 2041 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2042 | * snd_soc_dapm_get_pin_status - get audio pin status |
| 2043 | * @codec: audio codec |
| 2044 | * @pin: audio signal pin endpoint (or start point) |
| 2045 | * |
| 2046 | * Get audio pin status - connected or disconnected. |
| 2047 | * |
| 2048 | * Returns 1 for connected otherwise 0. |
| 2049 | */ |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 2050 | int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin) |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2051 | { |
| 2052 | struct snd_soc_dapm_widget *w; |
| 2053 | |
| 2054 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2055 | if (!strcmp(w->name, pin)) |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2056 | return w->connected; |
| 2057 | } |
| 2058 | |
| 2059 | return 0; |
| 2060 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 2061 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 2062 | |
| 2063 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2064 | * snd_soc_dapm_free - free dapm resources |
| 2065 | * @socdev: SoC device |
| 2066 | * |
| 2067 | * Free all dapm widgets and resources. |
| 2068 | */ |
| 2069 | void snd_soc_dapm_free(struct snd_soc_device *socdev) |
| 2070 | { |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 2071 | struct snd_soc_codec *codec = socdev->card->codec; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2072 | |
| 2073 | snd_soc_dapm_sys_remove(socdev->dev); |
| 2074 | dapm_free_widgets(codec); |
| 2075 | } |
| 2076 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); |
| 2077 | |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2078 | /* |
| 2079 | * snd_soc_dapm_shutdown - callback for system shutdown |
| 2080 | */ |
| 2081 | void snd_soc_dapm_shutdown(struct snd_soc_device *socdev) |
| 2082 | { |
| 2083 | struct snd_soc_codec *codec = socdev->card->codec; |
| 2084 | struct snd_soc_dapm_widget *w; |
| 2085 | LIST_HEAD(down_list); |
| 2086 | int powerdown = 0; |
| 2087 | |
| 2088 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 2089 | if (w->power) { |
| 2090 | dapm_seq_insert(w, &down_list, dapm_down_seq); |
Mark Brown | c2caa4d | 2009-06-26 15:36:56 +0100 | [diff] [blame] | 2091 | w->power = 0; |
Mark Brown | 5173747 | 2009-06-22 13:16:51 +0100 | [diff] [blame] | 2092 | powerdown = 1; |
| 2093 | } |
| 2094 | } |
| 2095 | |
| 2096 | /* If there were no widgets to power down we're already in |
| 2097 | * standby. |
| 2098 | */ |
| 2099 | if (powerdown) { |
| 2100 | snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_PREPARE); |
| 2101 | dapm_seq_run(codec, &down_list, 0, dapm_down_seq); |
| 2102 | snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_STANDBY); |
| 2103 | } |
| 2104 | |
| 2105 | snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_OFF); |
| 2106 | } |
| 2107 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2108 | /* Module information */ |
Liam Girdwood | d331124 | 2008-10-12 13:17:36 +0100 | [diff] [blame] | 2109 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 2110 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
| 2111 | MODULE_LICENSE("GPL"); |