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 |
| 15 | * DAC's/ADC's. |
| 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 | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 55 | snd_soc_dapm_pre, snd_soc_dapm_supply, snd_soc_dapm_micbias, |
| 56 | snd_soc_dapm_mic, snd_soc_dapm_mux, snd_soc_dapm_value_mux, |
| 57 | snd_soc_dapm_dac, snd_soc_dapm_mixer, snd_soc_dapm_mixer_named_ctl, |
| 58 | snd_soc_dapm_pga, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, |
| 59 | snd_soc_dapm_post |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 60 | }; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 61 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 62 | static int dapm_down_seq[] = { |
| 63 | snd_soc_dapm_pre, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 64 | snd_soc_dapm_pga, snd_soc_dapm_mixer_named_ctl, snd_soc_dapm_mixer, |
| 65 | snd_soc_dapm_dac, snd_soc_dapm_mic, snd_soc_dapm_micbias, |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 66 | snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_supply, |
| 67 | snd_soc_dapm_post |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 68 | }; |
| 69 | |
| 70 | static int dapm_status = 1; |
| 71 | module_param(dapm_status, int, 0); |
| 72 | MODULE_PARM_DESC(dapm_status, "enable DPM sysfs entries"); |
| 73 | |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 74 | static void pop_wait(u32 pop_time) |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 75 | { |
| 76 | if (pop_time) |
| 77 | schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); |
| 78 | } |
| 79 | |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 80 | static void pop_dbg(u32 pop_time, const char *fmt, ...) |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 81 | { |
| 82 | va_list args; |
| 83 | |
| 84 | va_start(args, fmt); |
| 85 | |
| 86 | if (pop_time) { |
| 87 | vprintk(fmt, args); |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 88 | pop_wait(pop_time); |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | va_end(args); |
| 92 | } |
| 93 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 94 | /* create a new dapm widget */ |
Takashi Iwai | 88cb429 | 2007-02-05 14:56:20 +0100 | [diff] [blame] | 95 | static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 96 | const struct snd_soc_dapm_widget *_widget) |
| 97 | { |
Takashi Iwai | 88cb429 | 2007-02-05 14:56:20 +0100 | [diff] [blame] | 98 | return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | /* set up initial codec paths */ |
| 102 | static void dapm_set_path_status(struct snd_soc_dapm_widget *w, |
| 103 | struct snd_soc_dapm_path *p, int i) |
| 104 | { |
| 105 | switch (w->id) { |
| 106 | case snd_soc_dapm_switch: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 107 | case snd_soc_dapm_mixer: |
| 108 | case snd_soc_dapm_mixer_named_ctl: { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 109 | int val; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 110 | struct soc_mixer_control *mc = (struct soc_mixer_control *) |
| 111 | w->kcontrols[i].private_value; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 112 | unsigned int reg = mc->reg; |
| 113 | unsigned int shift = mc->shift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 114 | int max = mc->max; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 115 | unsigned int mask = (1 << fls(max)) - 1; |
| 116 | unsigned int invert = mc->invert; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 117 | |
| 118 | val = snd_soc_read(w->codec, reg); |
| 119 | val = (val >> shift) & mask; |
| 120 | |
| 121 | if ((invert && !val) || (!invert && val)) |
| 122 | p->connect = 1; |
| 123 | else |
| 124 | p->connect = 0; |
| 125 | } |
| 126 | break; |
| 127 | case snd_soc_dapm_mux: { |
| 128 | struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; |
| 129 | int val, item, bitmask; |
| 130 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 131 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 132 | ; |
| 133 | val = snd_soc_read(w->codec, e->reg); |
| 134 | item = (val >> e->shift_l) & (bitmask - 1); |
| 135 | |
| 136 | p->connect = 0; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 137 | for (i = 0; i < e->max; i++) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 138 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
| 139 | p->connect = 1; |
| 140 | } |
| 141 | } |
| 142 | break; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 143 | case snd_soc_dapm_value_mux: { |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 144 | struct soc_enum *e = (struct soc_enum *) |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 145 | w->kcontrols[i].private_value; |
| 146 | int val, item; |
| 147 | |
| 148 | val = snd_soc_read(w->codec, e->reg); |
| 149 | val = (val >> e->shift_l) & e->mask; |
| 150 | for (item = 0; item < e->max; item++) { |
| 151 | if (val == e->values[item]) |
| 152 | break; |
| 153 | } |
| 154 | |
| 155 | p->connect = 0; |
| 156 | for (i = 0; i < e->max; i++) { |
| 157 | if (!(strcmp(p->name, e->texts[i])) && item == i) |
| 158 | p->connect = 1; |
| 159 | } |
| 160 | } |
| 161 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 162 | /* does not effect routing - always connected */ |
| 163 | case snd_soc_dapm_pga: |
| 164 | case snd_soc_dapm_output: |
| 165 | case snd_soc_dapm_adc: |
| 166 | case snd_soc_dapm_input: |
| 167 | case snd_soc_dapm_dac: |
| 168 | case snd_soc_dapm_micbias: |
| 169 | case snd_soc_dapm_vmid: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 170 | case snd_soc_dapm_supply: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 171 | p->connect = 1; |
| 172 | break; |
| 173 | /* does effect routing - dynamically connected */ |
| 174 | case snd_soc_dapm_hp: |
| 175 | case snd_soc_dapm_mic: |
| 176 | case snd_soc_dapm_spk: |
| 177 | case snd_soc_dapm_line: |
| 178 | case snd_soc_dapm_pre: |
| 179 | case snd_soc_dapm_post: |
| 180 | p->connect = 0; |
| 181 | break; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | /* connect mux widget to it's interconnecting audio paths */ |
| 186 | static int dapm_connect_mux(struct snd_soc_codec *codec, |
| 187 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
| 188 | struct snd_soc_dapm_path *path, const char *control_name, |
| 189 | const struct snd_kcontrol_new *kcontrol) |
| 190 | { |
| 191 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 192 | int i; |
| 193 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 194 | for (i = 0; i < e->max; i++) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 195 | if (!(strcmp(control_name, e->texts[i]))) { |
| 196 | list_add(&path->list, &codec->dapm_paths); |
| 197 | list_add(&path->list_sink, &dest->sources); |
| 198 | list_add(&path->list_source, &src->sinks); |
| 199 | path->name = (char*)e->texts[i]; |
| 200 | dapm_set_path_status(dest, path, 0); |
| 201 | return 0; |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | return -ENODEV; |
| 206 | } |
| 207 | |
| 208 | /* connect mixer widget to it's interconnecting audio paths */ |
| 209 | static int dapm_connect_mixer(struct snd_soc_codec *codec, |
| 210 | struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, |
| 211 | struct snd_soc_dapm_path *path, const char *control_name) |
| 212 | { |
| 213 | int i; |
| 214 | |
| 215 | /* search for mixer kcontrol */ |
| 216 | for (i = 0; i < dest->num_kcontrols; i++) { |
| 217 | if (!strcmp(control_name, dest->kcontrols[i].name)) { |
| 218 | list_add(&path->list, &codec->dapm_paths); |
| 219 | list_add(&path->list_sink, &dest->sources); |
| 220 | list_add(&path->list_source, &src->sinks); |
| 221 | path->name = dest->kcontrols[i].name; |
| 222 | dapm_set_path_status(dest, path, i); |
| 223 | return 0; |
| 224 | } |
| 225 | } |
| 226 | return -ENODEV; |
| 227 | } |
| 228 | |
| 229 | /* update dapm codec register bits */ |
| 230 | static int dapm_update_bits(struct snd_soc_dapm_widget *widget) |
| 231 | { |
| 232 | int change, power; |
| 233 | unsigned short old, new; |
| 234 | struct snd_soc_codec *codec = widget->codec; |
| 235 | |
| 236 | /* check for valid widgets */ |
| 237 | if (widget->reg < 0 || widget->id == snd_soc_dapm_input || |
| 238 | widget->id == snd_soc_dapm_output || |
| 239 | widget->id == snd_soc_dapm_hp || |
| 240 | widget->id == snd_soc_dapm_mic || |
| 241 | widget->id == snd_soc_dapm_line || |
| 242 | widget->id == snd_soc_dapm_spk) |
| 243 | return 0; |
| 244 | |
| 245 | power = widget->power; |
| 246 | if (widget->invert) |
| 247 | power = (power ? 0:1); |
| 248 | |
| 249 | old = snd_soc_read(codec, widget->reg); |
| 250 | new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); |
| 251 | |
| 252 | change = old != new; |
| 253 | if (change) { |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 254 | pop_dbg(codec->pop_time, "pop test %s : %s in %d ms\n", |
| 255 | widget->name, widget->power ? "on" : "off", |
| 256 | codec->pop_time); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 257 | snd_soc_write(codec, widget->reg, new); |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 258 | pop_wait(codec->pop_time); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 259 | } |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 260 | pr_debug("reg %x old %x new %x change %d\n", widget->reg, |
| 261 | old, new, change); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 262 | return change; |
| 263 | } |
| 264 | |
| 265 | /* ramps the volume up or down to minimise pops before or after a |
| 266 | * DAPM power event */ |
| 267 | static int dapm_set_pga(struct snd_soc_dapm_widget *widget, int power) |
| 268 | { |
| 269 | const struct snd_kcontrol_new *k = widget->kcontrols; |
| 270 | |
| 271 | if (widget->muted && !power) |
| 272 | return 0; |
| 273 | if (!widget->muted && power) |
| 274 | return 0; |
| 275 | |
| 276 | if (widget->num_kcontrols && k) { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 277 | struct soc_mixer_control *mc = |
| 278 | (struct soc_mixer_control *)k->private_value; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 279 | unsigned int reg = mc->reg; |
| 280 | unsigned int shift = mc->shift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 281 | int max = mc->max; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 282 | unsigned int mask = (1 << fls(max)) - 1; |
| 283 | unsigned int invert = mc->invert; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 284 | |
| 285 | if (power) { |
| 286 | int i; |
| 287 | /* power up has happended, increase volume to last level */ |
| 288 | if (invert) { |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 289 | for (i = max; i > widget->saved_value; i--) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 290 | snd_soc_update_bits(widget->codec, reg, mask, i); |
| 291 | } else { |
| 292 | for (i = 0; i < widget->saved_value; i++) |
| 293 | snd_soc_update_bits(widget->codec, reg, mask, i); |
| 294 | } |
| 295 | widget->muted = 0; |
| 296 | } else { |
| 297 | /* power down is about to occur, decrease volume to mute */ |
| 298 | int val = snd_soc_read(widget->codec, reg); |
| 299 | int i = widget->saved_value = (val >> shift) & mask; |
| 300 | if (invert) { |
| 301 | for (; i < mask; i++) |
| 302 | snd_soc_update_bits(widget->codec, reg, mask, i); |
| 303 | } else { |
| 304 | for (; i > 0; i--) |
| 305 | snd_soc_update_bits(widget->codec, reg, mask, i); |
| 306 | } |
| 307 | widget->muted = 1; |
| 308 | } |
| 309 | } |
| 310 | return 0; |
| 311 | } |
| 312 | |
| 313 | /* create new dapm mixer control */ |
| 314 | static int dapm_new_mixer(struct snd_soc_codec *codec, |
| 315 | struct snd_soc_dapm_widget *w) |
| 316 | { |
| 317 | int i, ret = 0; |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 318 | size_t name_len; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 319 | struct snd_soc_dapm_path *path; |
| 320 | |
| 321 | /* add kcontrol */ |
| 322 | for (i = 0; i < w->num_kcontrols; i++) { |
| 323 | |
| 324 | /* match name */ |
| 325 | list_for_each_entry(path, &w->sources, list_sink) { |
| 326 | |
| 327 | /* mixer/mux paths name must match control name */ |
| 328 | if (path->name != (char*)w->kcontrols[i].name) |
| 329 | continue; |
| 330 | |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 331 | /* add dapm control with long name. |
| 332 | * for dapm_mixer this is the concatenation of the |
| 333 | * mixer and kcontrol name. |
| 334 | * for dapm_mixer_named_ctl this is simply the |
| 335 | * kcontrol name. |
| 336 | */ |
| 337 | name_len = strlen(w->kcontrols[i].name) + 1; |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 338 | if (w->id != snd_soc_dapm_mixer_named_ctl) |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 339 | name_len += 1 + strlen(w->name); |
| 340 | |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 341 | path->long_name = kmalloc(name_len, GFP_KERNEL); |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 342 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 343 | if (path->long_name == NULL) |
| 344 | return -ENOMEM; |
| 345 | |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 346 | switch (w->id) { |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 347 | default: |
| 348 | snprintf(path->long_name, name_len, "%s %s", |
| 349 | w->name, w->kcontrols[i].name); |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 350 | break; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 351 | case snd_soc_dapm_mixer_named_ctl: |
| 352 | snprintf(path->long_name, name_len, "%s", |
| 353 | w->kcontrols[i].name); |
Mark Brown | 07495f3 | 2009-03-05 17:06:23 +0000 | [diff] [blame] | 354 | break; |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 355 | } |
| 356 | |
Mark Brown | 219b93f | 2008-10-28 13:02:31 +0000 | [diff] [blame] | 357 | path->long_name[name_len - 1] = '\0'; |
| 358 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 359 | path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w, |
| 360 | path->long_name); |
| 361 | ret = snd_ctl_add(codec->card, path->kcontrol); |
| 362 | if (ret < 0) { |
Mark Brown | 6553e19 | 2009-04-06 16:59:32 +0100 | [diff] [blame] | 363 | printk(KERN_ERR "asoc: failed to add dapm kcontrol %s: %d\n", |
| 364 | path->long_name, |
| 365 | ret); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 366 | kfree(path->long_name); |
| 367 | path->long_name = NULL; |
| 368 | return ret; |
| 369 | } |
| 370 | } |
| 371 | } |
| 372 | return ret; |
| 373 | } |
| 374 | |
| 375 | /* create new dapm mux control */ |
| 376 | static int dapm_new_mux(struct snd_soc_codec *codec, |
| 377 | struct snd_soc_dapm_widget *w) |
| 378 | { |
| 379 | struct snd_soc_dapm_path *path = NULL; |
| 380 | struct snd_kcontrol *kcontrol; |
| 381 | int ret = 0; |
| 382 | |
| 383 | if (!w->num_kcontrols) { |
| 384 | printk(KERN_ERR "asoc: mux %s has no controls\n", w->name); |
| 385 | return -EINVAL; |
| 386 | } |
| 387 | |
| 388 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); |
| 389 | ret = snd_ctl_add(codec->card, kcontrol); |
| 390 | if (ret < 0) |
| 391 | goto err; |
| 392 | |
| 393 | list_for_each_entry(path, &w->sources, list_sink) |
| 394 | path->kcontrol = kcontrol; |
| 395 | |
| 396 | return ret; |
| 397 | |
| 398 | err: |
| 399 | printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name); |
| 400 | return ret; |
| 401 | } |
| 402 | |
| 403 | /* create new dapm volume control */ |
| 404 | static int dapm_new_pga(struct snd_soc_codec *codec, |
| 405 | struct snd_soc_dapm_widget *w) |
| 406 | { |
| 407 | struct snd_kcontrol *kcontrol; |
| 408 | int ret = 0; |
| 409 | |
| 410 | if (!w->num_kcontrols) |
| 411 | return -EINVAL; |
| 412 | |
| 413 | kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); |
| 414 | ret = snd_ctl_add(codec->card, kcontrol); |
| 415 | if (ret < 0) { |
| 416 | printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name); |
| 417 | return ret; |
| 418 | } |
| 419 | |
| 420 | return ret; |
| 421 | } |
| 422 | |
| 423 | /* reset 'walked' bit for each dapm path */ |
| 424 | static inline void dapm_clear_walk(struct snd_soc_codec *codec) |
| 425 | { |
| 426 | struct snd_soc_dapm_path *p; |
| 427 | |
| 428 | list_for_each_entry(p, &codec->dapm_paths, list) |
| 429 | p->walked = 0; |
| 430 | } |
| 431 | |
| 432 | /* |
| 433 | * Recursively check for a completed path to an active or physically connected |
| 434 | * output widget. Returns number of complete paths. |
| 435 | */ |
| 436 | static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) |
| 437 | { |
| 438 | struct snd_soc_dapm_path *path; |
| 439 | int con = 0; |
| 440 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 441 | if (widget->id == snd_soc_dapm_supply) |
| 442 | return 0; |
| 443 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 444 | if (widget->id == snd_soc_dapm_adc && widget->active) |
| 445 | return 1; |
| 446 | |
| 447 | if (widget->connected) { |
| 448 | /* connected pin ? */ |
| 449 | if (widget->id == snd_soc_dapm_output && !widget->ext) |
| 450 | return 1; |
| 451 | |
| 452 | /* connected jack or spk ? */ |
| 453 | if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || |
| 454 | widget->id == snd_soc_dapm_line) |
| 455 | return 1; |
| 456 | } |
| 457 | |
| 458 | list_for_each_entry(path, &widget->sinks, list_source) { |
| 459 | if (path->walked) |
| 460 | continue; |
| 461 | |
| 462 | if (path->sink && path->connect) { |
| 463 | path->walked = 1; |
| 464 | con += is_connected_output_ep(path->sink); |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | return con; |
| 469 | } |
| 470 | |
| 471 | /* |
| 472 | * Recursively check for a completed path to an active or physically connected |
| 473 | * input widget. Returns number of complete paths. |
| 474 | */ |
| 475 | static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) |
| 476 | { |
| 477 | struct snd_soc_dapm_path *path; |
| 478 | int con = 0; |
| 479 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 480 | if (widget->id == snd_soc_dapm_supply) |
| 481 | return 0; |
| 482 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 483 | /* active stream ? */ |
| 484 | if (widget->id == snd_soc_dapm_dac && widget->active) |
| 485 | return 1; |
| 486 | |
| 487 | if (widget->connected) { |
| 488 | /* connected pin ? */ |
| 489 | if (widget->id == snd_soc_dapm_input && !widget->ext) |
| 490 | return 1; |
| 491 | |
| 492 | /* connected VMID/Bias for lower pops */ |
| 493 | if (widget->id == snd_soc_dapm_vmid) |
| 494 | return 1; |
| 495 | |
| 496 | /* connected jack ? */ |
| 497 | if (widget->id == snd_soc_dapm_mic || widget->id == snd_soc_dapm_line) |
| 498 | return 1; |
| 499 | } |
| 500 | |
| 501 | list_for_each_entry(path, &widget->sources, list_sink) { |
| 502 | if (path->walked) |
| 503 | continue; |
| 504 | |
| 505 | if (path->source && path->connect) { |
| 506 | path->walked = 1; |
| 507 | con += is_connected_input_ep(path->source); |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | return con; |
| 512 | } |
| 513 | |
| 514 | /* |
Jarkko Nikula | e2be2cc | 2008-06-25 14:42:07 +0300 | [diff] [blame] | 515 | * Handler for generic register modifier widget. |
| 516 | */ |
| 517 | int dapm_reg_event(struct snd_soc_dapm_widget *w, |
| 518 | struct snd_kcontrol *kcontrol, int event) |
| 519 | { |
| 520 | unsigned int val; |
| 521 | |
| 522 | if (SND_SOC_DAPM_EVENT_ON(event)) |
| 523 | val = w->on_val; |
| 524 | else |
| 525 | val = w->off_val; |
| 526 | |
| 527 | snd_soc_update_bits(w->codec, -(w->reg + 1), |
| 528 | w->mask << w->shift, val << w->shift); |
| 529 | |
| 530 | return 0; |
| 531 | } |
Mark Brown | 1158941 | 2008-07-29 11:42:23 +0100 | [diff] [blame] | 532 | EXPORT_SYMBOL_GPL(dapm_reg_event); |
Jarkko Nikula | e2be2cc | 2008-06-25 14:42:07 +0300 | [diff] [blame] | 533 | |
Mark Brown | 025756e | 2009-04-13 11:09:18 +0100 | [diff] [blame] | 534 | /* Standard power change method, used to apply power changes to most |
| 535 | * widgets. |
| 536 | */ |
| 537 | static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w) |
| 538 | { |
| 539 | int ret; |
| 540 | |
| 541 | /* call any power change event handlers */ |
| 542 | if (w->event) |
| 543 | pr_debug("power %s event for %s flags %x\n", |
| 544 | w->power ? "on" : "off", |
| 545 | w->name, w->event_flags); |
| 546 | |
| 547 | /* power up pre event */ |
| 548 | if (w->power && w->event && |
| 549 | (w->event_flags & SND_SOC_DAPM_PRE_PMU)) { |
| 550 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); |
| 551 | if (ret < 0) |
| 552 | return ret; |
| 553 | } |
| 554 | |
| 555 | /* power down pre event */ |
| 556 | if (!w->power && w->event && |
| 557 | (w->event_flags & SND_SOC_DAPM_PRE_PMD)) { |
| 558 | ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); |
| 559 | if (ret < 0) |
| 560 | return ret; |
| 561 | } |
| 562 | |
| 563 | /* Lower PGA volume to reduce pops */ |
| 564 | if (w->id == snd_soc_dapm_pga && !w->power) |
| 565 | dapm_set_pga(w, w->power); |
| 566 | |
| 567 | dapm_update_bits(w); |
| 568 | |
| 569 | /* Raise PGA volume to reduce pops */ |
| 570 | if (w->id == snd_soc_dapm_pga && w->power) |
| 571 | dapm_set_pga(w, w->power); |
| 572 | |
| 573 | /* power up post event */ |
| 574 | if (w->power && w->event && |
| 575 | (w->event_flags & SND_SOC_DAPM_POST_PMU)) { |
| 576 | ret = w->event(w, |
| 577 | NULL, SND_SOC_DAPM_POST_PMU); |
| 578 | if (ret < 0) |
| 579 | return ret; |
| 580 | } |
| 581 | |
| 582 | /* power down post event */ |
| 583 | if (!w->power && w->event && |
| 584 | (w->event_flags & SND_SOC_DAPM_POST_PMD)) { |
| 585 | ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); |
| 586 | if (ret < 0) |
| 587 | return ret; |
| 588 | } |
| 589 | |
| 590 | return 0; |
| 591 | } |
| 592 | |
Mark Brown | cd0f2d4 | 2009-04-20 16:56:59 +0100 | [diff] [blame] | 593 | /* Generic check to see if a widget should be powered. |
| 594 | */ |
| 595 | static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) |
| 596 | { |
| 597 | int in, out; |
| 598 | |
| 599 | in = is_connected_input_ep(w); |
| 600 | dapm_clear_walk(w->codec); |
| 601 | out = is_connected_output_ep(w); |
| 602 | dapm_clear_walk(w->codec); |
| 603 | return out != 0 && in != 0; |
| 604 | } |
| 605 | |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 606 | /* Check to see if an ADC has power */ |
| 607 | static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) |
| 608 | { |
| 609 | int in; |
| 610 | |
| 611 | if (w->active) { |
| 612 | in = is_connected_input_ep(w); |
| 613 | dapm_clear_walk(w->codec); |
| 614 | return in != 0; |
| 615 | } else { |
| 616 | return dapm_generic_check_power(w); |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | /* Check to see if a DAC has power */ |
| 621 | static int dapm_dac_check_power(struct snd_soc_dapm_widget *w) |
| 622 | { |
| 623 | int out; |
| 624 | |
| 625 | if (w->active) { |
| 626 | out = is_connected_output_ep(w); |
| 627 | dapm_clear_walk(w->codec); |
| 628 | return out != 0; |
| 629 | } else { |
| 630 | return dapm_generic_check_power(w); |
| 631 | } |
| 632 | } |
| 633 | |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 634 | /* Check to see if a power supply is needed */ |
| 635 | static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) |
| 636 | { |
| 637 | struct snd_soc_dapm_path *path; |
| 638 | int power = 0; |
| 639 | |
| 640 | /* Check if one of our outputs is connected */ |
| 641 | list_for_each_entry(path, &w->sinks, list_source) { |
| 642 | if (path->sink && path->sink->power_check && |
| 643 | path->sink->power_check(path->sink)) { |
| 644 | power = 1; |
| 645 | break; |
| 646 | } |
| 647 | } |
| 648 | |
| 649 | dapm_clear_walk(w->codec); |
| 650 | |
| 651 | return power; |
| 652 | } |
| 653 | |
Jarkko Nikula | e2be2cc | 2008-06-25 14:42:07 +0300 | [diff] [blame] | 654 | /* |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 655 | * Scan a single DAPM widget for a complete audio path and update the |
| 656 | * power status appropriately. |
| 657 | */ |
| 658 | static int dapm_power_widget(struct snd_soc_codec *codec, int event, |
| 659 | struct snd_soc_dapm_widget *w) |
| 660 | { |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 661 | int power, ret; |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 662 | |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 663 | switch (w->id) { |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 664 | case snd_soc_dapm_pre: |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 665 | if (!w->event) |
| 666 | return 0; |
| 667 | |
| 668 | if (event == SND_SOC_DAPM_STREAM_START) { |
| 669 | ret = w->event(w, |
| 670 | NULL, SND_SOC_DAPM_PRE_PMU); |
| 671 | if (ret < 0) |
| 672 | return ret; |
| 673 | } else if (event == SND_SOC_DAPM_STREAM_STOP) { |
| 674 | ret = w->event(w, |
| 675 | NULL, SND_SOC_DAPM_PRE_PMD); |
| 676 | if (ret < 0) |
| 677 | return ret; |
| 678 | } |
| 679 | return 0; |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 680 | |
| 681 | case snd_soc_dapm_post: |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 682 | if (!w->event) |
| 683 | return 0; |
| 684 | |
| 685 | if (event == SND_SOC_DAPM_STREAM_START) { |
| 686 | ret = w->event(w, |
| 687 | NULL, SND_SOC_DAPM_POST_PMU); |
| 688 | if (ret < 0) |
| 689 | return ret; |
| 690 | } else if (event == SND_SOC_DAPM_STREAM_STOP) { |
| 691 | ret = w->event(w, |
| 692 | NULL, SND_SOC_DAPM_POST_PMD); |
| 693 | if (ret < 0) |
| 694 | return ret; |
| 695 | } |
| 696 | return 0; |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 697 | |
| 698 | default: |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 699 | break; |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 700 | } |
| 701 | |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 702 | if (!w->power_check) |
| 703 | return 0; |
| 704 | |
| 705 | power = w->power_check(w); |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 706 | if (w->power == power) |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 707 | return 0; |
Mark Brown | 6ea31b9 | 2009-04-20 17:15:41 +0100 | [diff] [blame] | 708 | w->power = power; |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 709 | |
Mark Brown | 025756e | 2009-04-13 11:09:18 +0100 | [diff] [blame] | 710 | return dapm_generic_apply_power(w); |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 711 | } |
| 712 | |
| 713 | /* |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 714 | * Scan each dapm widget for complete audio path. |
| 715 | * A complete path is a route that has valid endpoints i.e.:- |
| 716 | * |
| 717 | * o DAC to output pin. |
| 718 | * o Input Pin to ADC. |
| 719 | * o Input pin to Output pin (bypass, sidetone) |
| 720 | * o DAC to ADC (loopback). |
| 721 | */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 722 | static int dapm_power_widgets(struct snd_soc_codec *codec, int event) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 723 | { |
| 724 | struct snd_soc_dapm_widget *w; |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 725 | int i, c = 1, *seq = NULL, ret = 0; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 726 | |
| 727 | /* do we have a sequenced stream event */ |
| 728 | if (event == SND_SOC_DAPM_STREAM_START) { |
| 729 | c = ARRAY_SIZE(dapm_up_seq); |
| 730 | seq = dapm_up_seq; |
| 731 | } else if (event == SND_SOC_DAPM_STREAM_STOP) { |
| 732 | c = ARRAY_SIZE(dapm_down_seq); |
| 733 | seq = dapm_down_seq; |
| 734 | } |
| 735 | |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 736 | for (i = 0; i < c; i++) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 737 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 738 | |
| 739 | /* is widget in stream order */ |
| 740 | if (seq && seq[i] && w->id != seq[i]) |
| 741 | continue; |
| 742 | |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 743 | ret = dapm_power_widget(codec, event, w); |
| 744 | if (ret != 0) |
| 745 | return ret; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 746 | } |
| 747 | } |
| 748 | |
Mark Brown | 42aa341 | 2009-03-01 19:21:10 +0000 | [diff] [blame] | 749 | return 0; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 750 | } |
| 751 | |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 752 | #ifdef DEBUG |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 753 | static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action) |
| 754 | { |
| 755 | struct snd_soc_dapm_widget *w; |
| 756 | struct snd_soc_dapm_path *p = NULL; |
| 757 | int in, out; |
| 758 | |
| 759 | printk("DAPM %s %s\n", codec->name, action); |
| 760 | |
| 761 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 762 | |
| 763 | /* only display widgets that effect routing */ |
| 764 | switch (w->id) { |
| 765 | case snd_soc_dapm_pre: |
| 766 | case snd_soc_dapm_post: |
| 767 | case snd_soc_dapm_vmid: |
| 768 | continue; |
| 769 | case snd_soc_dapm_mux: |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 770 | case snd_soc_dapm_value_mux: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 771 | case snd_soc_dapm_output: |
| 772 | case snd_soc_dapm_input: |
| 773 | case snd_soc_dapm_switch: |
| 774 | case snd_soc_dapm_hp: |
| 775 | case snd_soc_dapm_mic: |
| 776 | case snd_soc_dapm_spk: |
| 777 | case snd_soc_dapm_line: |
| 778 | case snd_soc_dapm_micbias: |
| 779 | case snd_soc_dapm_dac: |
| 780 | case snd_soc_dapm_adc: |
| 781 | case snd_soc_dapm_pga: |
| 782 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 783 | case snd_soc_dapm_mixer_named_ctl: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 784 | case snd_soc_dapm_supply: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 785 | if (w->name) { |
| 786 | in = is_connected_input_ep(w); |
| 787 | dapm_clear_walk(w->codec); |
| 788 | out = is_connected_output_ep(w); |
| 789 | dapm_clear_walk(w->codec); |
| 790 | printk("%s: %s in %d out %d\n", w->name, |
| 791 | w->power ? "On":"Off",in, out); |
| 792 | |
| 793 | list_for_each_entry(p, &w->sources, list_sink) { |
| 794 | if (p->connect) |
| 795 | printk(" in %s %s\n", p->name ? p->name : "static", |
| 796 | p->source->name); |
| 797 | } |
| 798 | list_for_each_entry(p, &w->sinks, list_source) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 799 | if (p->connect) |
| 800 | printk(" out %s %s\n", p->name ? p->name : "static", |
| 801 | p->sink->name); |
| 802 | } |
| 803 | } |
| 804 | break; |
| 805 | } |
| 806 | } |
| 807 | } |
| 808 | #endif |
| 809 | |
| 810 | /* test and update the power status of a mux widget */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 811 | static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
| 812 | struct snd_kcontrol *kcontrol, int mask, |
Richard Zhao | cb01e2b | 2008-10-07 08:05:20 +0800 | [diff] [blame] | 813 | int mux, int val, struct soc_enum *e) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 814 | { |
| 815 | struct snd_soc_dapm_path *path; |
| 816 | int found = 0; |
| 817 | |
Peter Ujfalusi | eff317d | 2009-01-15 14:40:47 +0200 | [diff] [blame] | 818 | if (widget->id != snd_soc_dapm_mux && |
| 819 | widget->id != snd_soc_dapm_value_mux) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 820 | return -ENODEV; |
| 821 | |
| 822 | if (!snd_soc_test_bits(widget->codec, e->reg, mask, val)) |
| 823 | return 0; |
| 824 | |
| 825 | /* find dapm widget path assoc with kcontrol */ |
| 826 | list_for_each_entry(path, &widget->codec->dapm_paths, list) { |
| 827 | if (path->kcontrol != kcontrol) |
| 828 | continue; |
| 829 | |
Richard Zhao | cb01e2b | 2008-10-07 08:05:20 +0800 | [diff] [blame] | 830 | if (!path->name || !e->texts[mux]) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 831 | continue; |
| 832 | |
| 833 | found = 1; |
| 834 | /* 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] | 835 | if (!(strcmp(path->name, e->texts[mux]))) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 836 | path->connect = 1; /* new connection */ |
| 837 | else |
| 838 | path->connect = 0; /* old connection must be powered down */ |
| 839 | } |
| 840 | |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 841 | if (found) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 842 | dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP); |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 843 | dump_dapm(widget->codec, "mux power update"); |
| 844 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 845 | |
| 846 | return 0; |
| 847 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 848 | |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 849 | /* test and update the power status of a mixer or switch widget */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 850 | static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
| 851 | struct snd_kcontrol *kcontrol, int reg, |
| 852 | int val_mask, int val, int invert) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 853 | { |
| 854 | struct snd_soc_dapm_path *path; |
| 855 | int found = 0; |
| 856 | |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 857 | if (widget->id != snd_soc_dapm_mixer && |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 858 | widget->id != snd_soc_dapm_mixer_named_ctl && |
Milan plzik | 1b075e3 | 2008-01-10 14:39:46 +0100 | [diff] [blame] | 859 | widget->id != snd_soc_dapm_switch) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 860 | return -ENODEV; |
| 861 | |
| 862 | if (!snd_soc_test_bits(widget->codec, reg, val_mask, val)) |
| 863 | return 0; |
| 864 | |
| 865 | /* find dapm widget path assoc with kcontrol */ |
| 866 | list_for_each_entry(path, &widget->codec->dapm_paths, list) { |
| 867 | if (path->kcontrol != kcontrol) |
| 868 | continue; |
| 869 | |
| 870 | /* found, now check type */ |
| 871 | found = 1; |
| 872 | if (val) |
| 873 | /* new connection */ |
| 874 | path->connect = invert ? 0:1; |
| 875 | else |
| 876 | /* old connection must be powered down */ |
| 877 | path->connect = invert ? 1:0; |
| 878 | break; |
| 879 | } |
| 880 | |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 881 | if (found) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 882 | dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP); |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 883 | dump_dapm(widget->codec, "mixer power update"); |
| 884 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 885 | |
| 886 | return 0; |
| 887 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 888 | |
| 889 | /* show dapm widget status in sys fs */ |
| 890 | static ssize_t dapm_widget_show(struct device *dev, |
| 891 | struct device_attribute *attr, char *buf) |
| 892 | { |
| 893 | struct snd_soc_device *devdata = dev_get_drvdata(dev); |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 894 | struct snd_soc_codec *codec = devdata->card->codec; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 895 | struct snd_soc_dapm_widget *w; |
| 896 | int count = 0; |
| 897 | char *state = "not set"; |
| 898 | |
| 899 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 900 | |
| 901 | /* only display widgets that burnm power */ |
| 902 | switch (w->id) { |
| 903 | case snd_soc_dapm_hp: |
| 904 | case snd_soc_dapm_mic: |
| 905 | case snd_soc_dapm_spk: |
| 906 | case snd_soc_dapm_line: |
| 907 | case snd_soc_dapm_micbias: |
| 908 | case snd_soc_dapm_dac: |
| 909 | case snd_soc_dapm_adc: |
| 910 | case snd_soc_dapm_pga: |
| 911 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 912 | case snd_soc_dapm_mixer_named_ctl: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 913 | case snd_soc_dapm_supply: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 914 | if (w->name) |
| 915 | count += sprintf(buf + count, "%s: %s\n", |
| 916 | w->name, w->power ? "On":"Off"); |
| 917 | break; |
| 918 | default: |
| 919 | break; |
| 920 | } |
| 921 | } |
| 922 | |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 923 | switch (codec->bias_level) { |
| 924 | case SND_SOC_BIAS_ON: |
| 925 | state = "On"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 926 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 927 | case SND_SOC_BIAS_PREPARE: |
| 928 | state = "Prepare"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 929 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 930 | case SND_SOC_BIAS_STANDBY: |
| 931 | state = "Standby"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 932 | break; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 933 | case SND_SOC_BIAS_OFF: |
| 934 | state = "Off"; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 935 | break; |
| 936 | } |
| 937 | count += sprintf(buf + count, "PM State: %s\n", state); |
| 938 | |
| 939 | return count; |
| 940 | } |
| 941 | |
| 942 | static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); |
| 943 | |
| 944 | int snd_soc_dapm_sys_add(struct device *dev) |
| 945 | { |
Mark Brown | f0062a9 | 2008-08-28 12:46:24 +0100 | [diff] [blame] | 946 | if (!dapm_status) |
| 947 | return 0; |
Troy Kisky | 12ef193 | 2008-10-13 17:42:14 -0700 | [diff] [blame] | 948 | return device_create_file(dev, &dev_attr_dapm_widget); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 949 | } |
| 950 | |
| 951 | static void snd_soc_dapm_sys_remove(struct device *dev) |
| 952 | { |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 953 | if (dapm_status) { |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 954 | device_remove_file(dev, &dev_attr_dapm_widget); |
Mark Brown | 15e4c72 | 2008-07-02 11:51:20 +0100 | [diff] [blame] | 955 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 956 | } |
| 957 | |
| 958 | /* free all dapm widgets and resources */ |
Adrian Bunk | d9c96cf | 2006-11-28 12:10:09 +0100 | [diff] [blame] | 959 | static void dapm_free_widgets(struct snd_soc_codec *codec) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 960 | { |
| 961 | struct snd_soc_dapm_widget *w, *next_w; |
| 962 | struct snd_soc_dapm_path *p, *next_p; |
| 963 | |
| 964 | list_for_each_entry_safe(w, next_w, &codec->dapm_widgets, list) { |
| 965 | list_del(&w->list); |
| 966 | kfree(w); |
| 967 | } |
| 968 | |
| 969 | list_for_each_entry_safe(p, next_p, &codec->dapm_paths, list) { |
| 970 | list_del(&p->list); |
| 971 | kfree(p->long_name); |
| 972 | kfree(p); |
| 973 | } |
| 974 | } |
| 975 | |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 976 | static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec, |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 977 | const char *pin, int status) |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 978 | { |
| 979 | struct snd_soc_dapm_widget *w; |
| 980 | |
| 981 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 982 | if (!strcmp(w->name, pin)) { |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 983 | pr_debug("dapm: %s: pin %s\n", codec->name, pin); |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 984 | w->connected = status; |
| 985 | return 0; |
| 986 | } |
| 987 | } |
| 988 | |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 989 | pr_err("dapm: %s: configuring unknown pin %s\n", codec->name, pin); |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 990 | return -EINVAL; |
| 991 | } |
| 992 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 993 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 994 | * snd_soc_dapm_sync - scan and power dapm paths |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 995 | * @codec: audio codec |
| 996 | * |
| 997 | * Walks all dapm audio paths and powers widgets according to their |
| 998 | * stream or path usage. |
| 999 | * |
| 1000 | * Returns 0 for success. |
| 1001 | */ |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1002 | int snd_soc_dapm_sync(struct snd_soc_codec *codec) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1003 | { |
Mark Brown | 3fccd8b | 2008-07-07 19:26:04 +0100 | [diff] [blame] | 1004 | int ret = dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP); |
| 1005 | dump_dapm(codec, "sync"); |
| 1006 | return ret; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1007 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1008 | EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1009 | |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1010 | static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, |
| 1011 | const char *sink, const char *control, const char *source) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1012 | { |
| 1013 | struct snd_soc_dapm_path *path; |
| 1014 | struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; |
| 1015 | int ret = 0; |
| 1016 | |
| 1017 | /* find src and dest widgets */ |
| 1018 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
| 1019 | |
| 1020 | if (!wsink && !(strcmp(w->name, sink))) { |
| 1021 | wsink = w; |
| 1022 | continue; |
| 1023 | } |
| 1024 | if (!wsource && !(strcmp(w->name, source))) { |
| 1025 | wsource = w; |
| 1026 | } |
| 1027 | } |
| 1028 | |
| 1029 | if (wsource == NULL || wsink == NULL) |
| 1030 | return -ENODEV; |
| 1031 | |
| 1032 | path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); |
| 1033 | if (!path) |
| 1034 | return -ENOMEM; |
| 1035 | |
| 1036 | path->source = wsource; |
| 1037 | path->sink = wsink; |
| 1038 | INIT_LIST_HEAD(&path->list); |
| 1039 | INIT_LIST_HEAD(&path->list_source); |
| 1040 | INIT_LIST_HEAD(&path->list_sink); |
| 1041 | |
| 1042 | /* check for external widgets */ |
| 1043 | if (wsink->id == snd_soc_dapm_input) { |
| 1044 | if (wsource->id == snd_soc_dapm_micbias || |
| 1045 | wsource->id == snd_soc_dapm_mic || |
Seth Forshee | 1e39221 | 2007-04-16 15:36:42 +0200 | [diff] [blame] | 1046 | wsink->id == snd_soc_dapm_line || |
| 1047 | wsink->id == snd_soc_dapm_output) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1048 | wsink->ext = 1; |
| 1049 | } |
| 1050 | if (wsource->id == snd_soc_dapm_output) { |
| 1051 | if (wsink->id == snd_soc_dapm_spk || |
| 1052 | wsink->id == snd_soc_dapm_hp || |
Seth Forshee | 1e39221 | 2007-04-16 15:36:42 +0200 | [diff] [blame] | 1053 | wsink->id == snd_soc_dapm_line || |
| 1054 | wsink->id == snd_soc_dapm_input) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1055 | wsource->ext = 1; |
| 1056 | } |
| 1057 | |
| 1058 | /* connect static paths */ |
| 1059 | if (control == NULL) { |
| 1060 | list_add(&path->list, &codec->dapm_paths); |
| 1061 | list_add(&path->list_sink, &wsink->sources); |
| 1062 | list_add(&path->list_source, &wsource->sinks); |
| 1063 | path->connect = 1; |
| 1064 | return 0; |
| 1065 | } |
| 1066 | |
| 1067 | /* connect dynamic paths */ |
| 1068 | switch(wsink->id) { |
| 1069 | case snd_soc_dapm_adc: |
| 1070 | case snd_soc_dapm_dac: |
| 1071 | case snd_soc_dapm_pga: |
| 1072 | case snd_soc_dapm_input: |
| 1073 | case snd_soc_dapm_output: |
| 1074 | case snd_soc_dapm_micbias: |
| 1075 | case snd_soc_dapm_vmid: |
| 1076 | case snd_soc_dapm_pre: |
| 1077 | case snd_soc_dapm_post: |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 1078 | case snd_soc_dapm_supply: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1079 | list_add(&path->list, &codec->dapm_paths); |
| 1080 | list_add(&path->list_sink, &wsink->sources); |
| 1081 | list_add(&path->list_source, &wsource->sinks); |
| 1082 | path->connect = 1; |
| 1083 | return 0; |
| 1084 | case snd_soc_dapm_mux: |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1085 | case snd_soc_dapm_value_mux: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1086 | ret = dapm_connect_mux(codec, wsource, wsink, path, control, |
| 1087 | &wsink->kcontrols[0]); |
| 1088 | if (ret != 0) |
| 1089 | goto err; |
| 1090 | break; |
| 1091 | case snd_soc_dapm_switch: |
| 1092 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1093 | case snd_soc_dapm_mixer_named_ctl: |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1094 | ret = dapm_connect_mixer(codec, wsource, wsink, path, control); |
| 1095 | if (ret != 0) |
| 1096 | goto err; |
| 1097 | break; |
| 1098 | case snd_soc_dapm_hp: |
| 1099 | case snd_soc_dapm_mic: |
| 1100 | case snd_soc_dapm_line: |
| 1101 | case snd_soc_dapm_spk: |
| 1102 | list_add(&path->list, &codec->dapm_paths); |
| 1103 | list_add(&path->list_sink, &wsink->sources); |
| 1104 | list_add(&path->list_source, &wsource->sinks); |
| 1105 | path->connect = 0; |
| 1106 | return 0; |
| 1107 | } |
| 1108 | return 0; |
| 1109 | |
| 1110 | err: |
| 1111 | printk(KERN_WARNING "asoc: no dapm match for %s --> %s --> %s\n", source, |
| 1112 | control, sink); |
| 1113 | kfree(path); |
| 1114 | return ret; |
| 1115 | } |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1116 | |
| 1117 | /** |
Mark Brown | 105f1c2 | 2008-05-13 14:52:19 +0200 | [diff] [blame] | 1118 | * snd_soc_dapm_add_routes - Add routes between DAPM widgets |
| 1119 | * @codec: codec |
| 1120 | * @route: audio routes |
| 1121 | * @num: number of routes |
| 1122 | * |
| 1123 | * Connects 2 dapm widgets together via a named audio path. The sink is |
| 1124 | * the widget receiving the audio signal, whilst the source is the sender |
| 1125 | * of the audio signal. |
| 1126 | * |
| 1127 | * Returns 0 for success else error. On error all resources can be freed |
| 1128 | * with a call to snd_soc_card_free(). |
| 1129 | */ |
| 1130 | int snd_soc_dapm_add_routes(struct snd_soc_codec *codec, |
| 1131 | const struct snd_soc_dapm_route *route, int num) |
| 1132 | { |
| 1133 | int i, ret; |
| 1134 | |
| 1135 | for (i = 0; i < num; i++) { |
| 1136 | ret = snd_soc_dapm_add_route(codec, route->sink, |
| 1137 | route->control, route->source); |
| 1138 | if (ret < 0) { |
| 1139 | printk(KERN_ERR "Failed to add route %s->%s\n", |
| 1140 | route->source, |
| 1141 | route->sink); |
| 1142 | return ret; |
| 1143 | } |
| 1144 | route++; |
| 1145 | } |
| 1146 | |
| 1147 | return 0; |
| 1148 | } |
| 1149 | EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); |
| 1150 | |
| 1151 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1152 | * snd_soc_dapm_new_widgets - add new dapm widgets |
| 1153 | * @codec: audio codec |
| 1154 | * |
| 1155 | * Checks the codec for any new dapm widgets and creates them if found. |
| 1156 | * |
| 1157 | * Returns 0 for success. |
| 1158 | */ |
| 1159 | int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec) |
| 1160 | { |
| 1161 | struct snd_soc_dapm_widget *w; |
| 1162 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1163 | list_for_each_entry(w, &codec->dapm_widgets, list) |
| 1164 | { |
| 1165 | if (w->new) |
| 1166 | continue; |
| 1167 | |
| 1168 | switch(w->id) { |
| 1169 | case snd_soc_dapm_switch: |
| 1170 | case snd_soc_dapm_mixer: |
Ian Molton | ca9c1aa | 2009-01-06 20:11:51 +0000 | [diff] [blame] | 1171 | case snd_soc_dapm_mixer_named_ctl: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1172 | w->power_check = dapm_generic_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1173 | dapm_new_mixer(codec, w); |
| 1174 | break; |
| 1175 | case snd_soc_dapm_mux: |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1176 | case snd_soc_dapm_value_mux: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1177 | w->power_check = dapm_generic_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1178 | dapm_new_mux(codec, w); |
| 1179 | break; |
| 1180 | case snd_soc_dapm_adc: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1181 | w->power_check = dapm_adc_check_power; |
| 1182 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1183 | case snd_soc_dapm_dac: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1184 | w->power_check = dapm_dac_check_power; |
| 1185 | break; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1186 | case snd_soc_dapm_pga: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1187 | w->power_check = dapm_generic_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1188 | dapm_new_pga(codec, w); |
| 1189 | break; |
| 1190 | case snd_soc_dapm_input: |
| 1191 | case snd_soc_dapm_output: |
| 1192 | case snd_soc_dapm_micbias: |
| 1193 | case snd_soc_dapm_spk: |
| 1194 | case snd_soc_dapm_hp: |
| 1195 | case snd_soc_dapm_mic: |
| 1196 | case snd_soc_dapm_line: |
Mark Brown | b75576d | 2009-04-20 17:56:13 +0100 | [diff] [blame] | 1197 | w->power_check = dapm_generic_check_power; |
| 1198 | break; |
Mark Brown | 246d0a1 | 2009-04-22 18:24:55 +0100 | [diff] [blame^] | 1199 | case snd_soc_dapm_supply: |
| 1200 | w->power_check = dapm_supply_check_power; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1201 | case snd_soc_dapm_vmid: |
| 1202 | case snd_soc_dapm_pre: |
| 1203 | case snd_soc_dapm_post: |
| 1204 | break; |
| 1205 | } |
| 1206 | w->new = 1; |
| 1207 | } |
| 1208 | |
| 1209 | dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1210 | return 0; |
| 1211 | } |
| 1212 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); |
| 1213 | |
| 1214 | /** |
| 1215 | * snd_soc_dapm_get_volsw - dapm mixer get callback |
| 1216 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1217 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1218 | * |
| 1219 | * Callback to get the value of a dapm mixer control. |
| 1220 | * |
| 1221 | * Returns 0 for success. |
| 1222 | */ |
| 1223 | int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, |
| 1224 | struct snd_ctl_elem_value *ucontrol) |
| 1225 | { |
| 1226 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1227 | struct soc_mixer_control *mc = |
| 1228 | (struct soc_mixer_control *)kcontrol->private_value; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1229 | unsigned int reg = mc->reg; |
| 1230 | unsigned int shift = mc->shift; |
| 1231 | unsigned int rshift = mc->rshift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1232 | int max = mc->max; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1233 | unsigned int invert = mc->invert; |
| 1234 | unsigned int mask = (1 << fls(max)) - 1; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1235 | |
| 1236 | /* return the saved value if we are powered down */ |
| 1237 | if (widget->id == snd_soc_dapm_pga && !widget->power) { |
| 1238 | ucontrol->value.integer.value[0] = widget->saved_value; |
| 1239 | return 0; |
| 1240 | } |
| 1241 | |
| 1242 | ucontrol->value.integer.value[0] = |
| 1243 | (snd_soc_read(widget->codec, reg) >> shift) & mask; |
| 1244 | if (shift != rshift) |
| 1245 | ucontrol->value.integer.value[1] = |
| 1246 | (snd_soc_read(widget->codec, reg) >> rshift) & mask; |
| 1247 | if (invert) { |
| 1248 | ucontrol->value.integer.value[0] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1249 | max - ucontrol->value.integer.value[0]; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1250 | if (shift != rshift) |
| 1251 | ucontrol->value.integer.value[1] = |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1252 | max - ucontrol->value.integer.value[1]; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1253 | } |
| 1254 | |
| 1255 | return 0; |
| 1256 | } |
| 1257 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); |
| 1258 | |
| 1259 | /** |
| 1260 | * snd_soc_dapm_put_volsw - dapm mixer set callback |
| 1261 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1262 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1263 | * |
| 1264 | * Callback to set the value of a dapm mixer control. |
| 1265 | * |
| 1266 | * Returns 0 for success. |
| 1267 | */ |
| 1268 | int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, |
| 1269 | struct snd_ctl_elem_value *ucontrol) |
| 1270 | { |
| 1271 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1272 | struct soc_mixer_control *mc = |
| 1273 | (struct soc_mixer_control *)kcontrol->private_value; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1274 | unsigned int reg = mc->reg; |
| 1275 | unsigned int shift = mc->shift; |
| 1276 | unsigned int rshift = mc->rshift; |
Jon Smirl | 4eaa981 | 2008-07-29 11:42:26 +0100 | [diff] [blame] | 1277 | int max = mc->max; |
Jon Smirl | 815ecf8d | 2008-07-29 10:22:24 -0400 | [diff] [blame] | 1278 | unsigned int mask = (1 << fls(max)) - 1; |
| 1279 | unsigned int invert = mc->invert; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1280 | unsigned short val, val2, val_mask; |
| 1281 | int ret; |
| 1282 | |
| 1283 | val = (ucontrol->value.integer.value[0] & mask); |
| 1284 | |
| 1285 | if (invert) |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1286 | val = max - val; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1287 | val_mask = mask << shift; |
| 1288 | val = val << shift; |
| 1289 | if (shift != rshift) { |
| 1290 | val2 = (ucontrol->value.integer.value[1] & mask); |
| 1291 | if (invert) |
Philipp Zabel | a7a4ac8 | 2008-01-10 14:37:42 +0100 | [diff] [blame] | 1292 | val2 = max - val2; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1293 | val_mask |= mask << rshift; |
| 1294 | val |= val2 << rshift; |
| 1295 | } |
| 1296 | |
| 1297 | mutex_lock(&widget->codec->mutex); |
| 1298 | widget->value = val; |
| 1299 | |
| 1300 | /* save volume value if the widget is powered down */ |
| 1301 | if (widget->id == snd_soc_dapm_pga && !widget->power) { |
| 1302 | widget->saved_value = val; |
| 1303 | mutex_unlock(&widget->codec->mutex); |
| 1304 | return 1; |
| 1305 | } |
| 1306 | |
| 1307 | dapm_mixer_update_power(widget, kcontrol, reg, val_mask, val, invert); |
| 1308 | if (widget->event) { |
| 1309 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1310 | ret = widget->event(widget, kcontrol, |
| 1311 | SND_SOC_DAPM_PRE_REG); |
| 1312 | if (ret < 0) { |
| 1313 | ret = 1; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1314 | goto out; |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1315 | } |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1316 | } |
| 1317 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); |
| 1318 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1319 | ret = widget->event(widget, kcontrol, |
| 1320 | SND_SOC_DAPM_POST_REG); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1321 | } else |
| 1322 | ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); |
| 1323 | |
| 1324 | out: |
| 1325 | mutex_unlock(&widget->codec->mutex); |
| 1326 | return ret; |
| 1327 | } |
| 1328 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); |
| 1329 | |
| 1330 | /** |
| 1331 | * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback |
| 1332 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1333 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1334 | * |
| 1335 | * Callback to get the value of a dapm enumerated double mixer control. |
| 1336 | * |
| 1337 | * Returns 0 for success. |
| 1338 | */ |
| 1339 | int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, |
| 1340 | struct snd_ctl_elem_value *ucontrol) |
| 1341 | { |
| 1342 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
| 1343 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 1344 | unsigned short val, bitmask; |
| 1345 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1346 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1347 | ; |
| 1348 | val = snd_soc_read(widget->codec, e->reg); |
| 1349 | ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); |
| 1350 | if (e->shift_l != e->shift_r) |
| 1351 | ucontrol->value.enumerated.item[1] = |
| 1352 | (val >> e->shift_r) & (bitmask - 1); |
| 1353 | |
| 1354 | return 0; |
| 1355 | } |
| 1356 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); |
| 1357 | |
| 1358 | /** |
| 1359 | * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback |
| 1360 | * @kcontrol: mixer control |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1361 | * @ucontrol: control element information |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1362 | * |
| 1363 | * Callback to set the value of a dapm enumerated double mixer control. |
| 1364 | * |
| 1365 | * Returns 0 for success. |
| 1366 | */ |
| 1367 | int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, |
| 1368 | struct snd_ctl_elem_value *ucontrol) |
| 1369 | { |
| 1370 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
| 1371 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 1372 | unsigned short val, mux; |
| 1373 | unsigned short mask, bitmask; |
| 1374 | int ret = 0; |
| 1375 | |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1376 | for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1377 | ; |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1378 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1379 | return -EINVAL; |
| 1380 | mux = ucontrol->value.enumerated.item[0]; |
| 1381 | val = mux << e->shift_l; |
| 1382 | mask = (bitmask - 1) << e->shift_l; |
| 1383 | if (e->shift_l != e->shift_r) { |
Jon Smirl | f8ba0b7 | 2008-07-29 11:42:27 +0100 | [diff] [blame] | 1384 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1385 | return -EINVAL; |
| 1386 | val |= ucontrol->value.enumerated.item[1] << e->shift_r; |
| 1387 | mask |= (bitmask - 1) << e->shift_r; |
| 1388 | } |
| 1389 | |
| 1390 | mutex_lock(&widget->codec->mutex); |
| 1391 | widget->value = val; |
Richard Zhao | cb01e2b | 2008-10-07 08:05:20 +0800 | [diff] [blame] | 1392 | dapm_mux_update_power(widget, kcontrol, mask, mux, val, e); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1393 | if (widget->event) { |
| 1394 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1395 | ret = widget->event(widget, |
| 1396 | kcontrol, SND_SOC_DAPM_PRE_REG); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1397 | if (ret < 0) |
| 1398 | goto out; |
| 1399 | } |
| 1400 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); |
| 1401 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) |
Laim Girdwood | 9af6d95 | 2008-01-10 14:41:02 +0100 | [diff] [blame] | 1402 | ret = widget->event(widget, |
| 1403 | kcontrol, SND_SOC_DAPM_POST_REG); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1404 | } else |
| 1405 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); |
| 1406 | |
| 1407 | out: |
| 1408 | mutex_unlock(&widget->codec->mutex); |
| 1409 | return ret; |
| 1410 | } |
| 1411 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); |
| 1412 | |
| 1413 | /** |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1414 | * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get |
| 1415 | * callback |
| 1416 | * @kcontrol: mixer control |
| 1417 | * @ucontrol: control element information |
| 1418 | * |
| 1419 | * Callback to get the value of a dapm semi enumerated double mixer control. |
| 1420 | * |
| 1421 | * Semi enumerated mixer: the enumerated items are referred as values. Can be |
| 1422 | * used for handling bitfield coded enumeration for example. |
| 1423 | * |
| 1424 | * Returns 0 for success. |
| 1425 | */ |
| 1426 | int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, |
| 1427 | struct snd_ctl_elem_value *ucontrol) |
| 1428 | { |
| 1429 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1430 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1431 | unsigned short reg_val, val, mux; |
| 1432 | |
| 1433 | reg_val = snd_soc_read(widget->codec, e->reg); |
| 1434 | val = (reg_val >> e->shift_l) & e->mask; |
| 1435 | for (mux = 0; mux < e->max; mux++) { |
| 1436 | if (val == e->values[mux]) |
| 1437 | break; |
| 1438 | } |
| 1439 | ucontrol->value.enumerated.item[0] = mux; |
| 1440 | if (e->shift_l != e->shift_r) { |
| 1441 | val = (reg_val >> e->shift_r) & e->mask; |
| 1442 | for (mux = 0; mux < e->max; mux++) { |
| 1443 | if (val == e->values[mux]) |
| 1444 | break; |
| 1445 | } |
| 1446 | ucontrol->value.enumerated.item[1] = mux; |
| 1447 | } |
| 1448 | |
| 1449 | return 0; |
| 1450 | } |
| 1451 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); |
| 1452 | |
| 1453 | /** |
| 1454 | * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set |
| 1455 | * callback |
| 1456 | * @kcontrol: mixer control |
| 1457 | * @ucontrol: control element information |
| 1458 | * |
| 1459 | * Callback to set the value of a dapm semi enumerated double mixer control. |
| 1460 | * |
| 1461 | * Semi enumerated mixer: the enumerated items are referred as values. Can be |
| 1462 | * used for handling bitfield coded enumeration for example. |
| 1463 | * |
| 1464 | * Returns 0 for success. |
| 1465 | */ |
| 1466 | int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, |
| 1467 | struct snd_ctl_elem_value *ucontrol) |
| 1468 | { |
| 1469 | struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1470 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1471 | unsigned short val, mux; |
| 1472 | unsigned short mask; |
| 1473 | int ret = 0; |
| 1474 | |
| 1475 | if (ucontrol->value.enumerated.item[0] > e->max - 1) |
| 1476 | return -EINVAL; |
| 1477 | mux = ucontrol->value.enumerated.item[0]; |
| 1478 | val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; |
| 1479 | mask = e->mask << e->shift_l; |
| 1480 | if (e->shift_l != e->shift_r) { |
| 1481 | if (ucontrol->value.enumerated.item[1] > e->max - 1) |
| 1482 | return -EINVAL; |
| 1483 | val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; |
| 1484 | mask |= e->mask << e->shift_r; |
| 1485 | } |
| 1486 | |
| 1487 | mutex_lock(&widget->codec->mutex); |
| 1488 | widget->value = val; |
Peter Ujfalusi | 7415555 | 2009-01-08 13:34:29 +0200 | [diff] [blame] | 1489 | dapm_mux_update_power(widget, kcontrol, mask, mux, val, e); |
Peter Ujfalusi | 2e72f8e | 2009-01-05 09:54:57 +0200 | [diff] [blame] | 1490 | if (widget->event) { |
| 1491 | if (widget->event_flags & SND_SOC_DAPM_PRE_REG) { |
| 1492 | ret = widget->event(widget, |
| 1493 | kcontrol, SND_SOC_DAPM_PRE_REG); |
| 1494 | if (ret < 0) |
| 1495 | goto out; |
| 1496 | } |
| 1497 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); |
| 1498 | if (widget->event_flags & SND_SOC_DAPM_POST_REG) |
| 1499 | ret = widget->event(widget, |
| 1500 | kcontrol, SND_SOC_DAPM_POST_REG); |
| 1501 | } else |
| 1502 | ret = snd_soc_update_bits(widget->codec, e->reg, mask, val); |
| 1503 | |
| 1504 | out: |
| 1505 | mutex_unlock(&widget->codec->mutex); |
| 1506 | return ret; |
| 1507 | } |
| 1508 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); |
| 1509 | |
| 1510 | /** |
Mark Brown | 8b37dbd | 2009-02-28 21:14:20 +0000 | [diff] [blame] | 1511 | * snd_soc_dapm_info_pin_switch - Info for a pin switch |
| 1512 | * |
| 1513 | * @kcontrol: mixer control |
| 1514 | * @uinfo: control element information |
| 1515 | * |
| 1516 | * Callback to provide information about a pin switch control. |
| 1517 | */ |
| 1518 | int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, |
| 1519 | struct snd_ctl_elem_info *uinfo) |
| 1520 | { |
| 1521 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 1522 | uinfo->count = 1; |
| 1523 | uinfo->value.integer.min = 0; |
| 1524 | uinfo->value.integer.max = 1; |
| 1525 | |
| 1526 | return 0; |
| 1527 | } |
| 1528 | EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); |
| 1529 | |
| 1530 | /** |
| 1531 | * snd_soc_dapm_get_pin_switch - Get information for a pin switch |
| 1532 | * |
| 1533 | * @kcontrol: mixer control |
| 1534 | * @ucontrol: Value |
| 1535 | */ |
| 1536 | int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, |
| 1537 | struct snd_ctl_elem_value *ucontrol) |
| 1538 | { |
| 1539 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 1540 | const char *pin = (const char *)kcontrol->private_value; |
| 1541 | |
| 1542 | mutex_lock(&codec->mutex); |
| 1543 | |
| 1544 | ucontrol->value.integer.value[0] = |
| 1545 | snd_soc_dapm_get_pin_status(codec, pin); |
| 1546 | |
| 1547 | mutex_unlock(&codec->mutex); |
| 1548 | |
| 1549 | return 0; |
| 1550 | } |
| 1551 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); |
| 1552 | |
| 1553 | /** |
| 1554 | * snd_soc_dapm_put_pin_switch - Set information for a pin switch |
| 1555 | * |
| 1556 | * @kcontrol: mixer control |
| 1557 | * @ucontrol: Value |
| 1558 | */ |
| 1559 | int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, |
| 1560 | struct snd_ctl_elem_value *ucontrol) |
| 1561 | { |
| 1562 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); |
| 1563 | const char *pin = (const char *)kcontrol->private_value; |
| 1564 | |
| 1565 | mutex_lock(&codec->mutex); |
| 1566 | |
| 1567 | if (ucontrol->value.integer.value[0]) |
| 1568 | snd_soc_dapm_enable_pin(codec, pin); |
| 1569 | else |
| 1570 | snd_soc_dapm_disable_pin(codec, pin); |
| 1571 | |
| 1572 | snd_soc_dapm_sync(codec); |
| 1573 | |
| 1574 | mutex_unlock(&codec->mutex); |
| 1575 | |
| 1576 | return 0; |
| 1577 | } |
| 1578 | EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); |
| 1579 | |
| 1580 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1581 | * snd_soc_dapm_new_control - create new dapm control |
| 1582 | * @codec: audio codec |
| 1583 | * @widget: widget template |
| 1584 | * |
| 1585 | * Creates a new dapm control based upon the template. |
| 1586 | * |
| 1587 | * Returns 0 for success else error. |
| 1588 | */ |
| 1589 | int snd_soc_dapm_new_control(struct snd_soc_codec *codec, |
| 1590 | const struct snd_soc_dapm_widget *widget) |
| 1591 | { |
| 1592 | struct snd_soc_dapm_widget *w; |
| 1593 | |
| 1594 | if ((w = dapm_cnew_widget(widget)) == NULL) |
| 1595 | return -ENOMEM; |
| 1596 | |
| 1597 | w->codec = codec; |
| 1598 | INIT_LIST_HEAD(&w->sources); |
| 1599 | INIT_LIST_HEAD(&w->sinks); |
| 1600 | INIT_LIST_HEAD(&w->list); |
| 1601 | list_add(&w->list, &codec->dapm_widgets); |
| 1602 | |
| 1603 | /* machine layer set ups unconnected pins and insertions */ |
| 1604 | w->connected = 1; |
| 1605 | return 0; |
| 1606 | } |
| 1607 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); |
| 1608 | |
| 1609 | /** |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 1610 | * snd_soc_dapm_new_controls - create new dapm controls |
| 1611 | * @codec: audio codec |
| 1612 | * @widget: widget array |
| 1613 | * @num: number of widgets |
| 1614 | * |
| 1615 | * Creates new DAPM controls based upon the templates. |
| 1616 | * |
| 1617 | * Returns 0 for success else error. |
| 1618 | */ |
| 1619 | int snd_soc_dapm_new_controls(struct snd_soc_codec *codec, |
| 1620 | const struct snd_soc_dapm_widget *widget, |
| 1621 | int num) |
| 1622 | { |
| 1623 | int i, ret; |
| 1624 | |
| 1625 | for (i = 0; i < num; i++) { |
| 1626 | ret = snd_soc_dapm_new_control(codec, widget); |
Mark Brown | b8b33cb | 2008-12-18 11:19:30 +0000 | [diff] [blame] | 1627 | if (ret < 0) { |
| 1628 | printk(KERN_ERR |
| 1629 | "ASoC: Failed to create DAPM control %s: %d\n", |
| 1630 | widget->name, ret); |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 1631 | return ret; |
Mark Brown | b8b33cb | 2008-12-18 11:19:30 +0000 | [diff] [blame] | 1632 | } |
Mark Brown | 4ba1327 | 2008-05-13 14:51:19 +0200 | [diff] [blame] | 1633 | widget++; |
| 1634 | } |
| 1635 | return 0; |
| 1636 | } |
| 1637 | EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); |
| 1638 | |
| 1639 | |
| 1640 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1641 | * snd_soc_dapm_stream_event - send a stream event to the dapm core |
| 1642 | * @codec: audio codec |
| 1643 | * @stream: stream name |
| 1644 | * @event: stream event |
| 1645 | * |
| 1646 | * Sends a stream event to the dapm core. The core then makes any |
| 1647 | * necessary widget power changes. |
| 1648 | * |
| 1649 | * Returns 0 for success else error. |
| 1650 | */ |
| 1651 | int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, |
| 1652 | char *stream, int event) |
| 1653 | { |
| 1654 | struct snd_soc_dapm_widget *w; |
| 1655 | |
Seth Forshee | 11da21a | 2007-02-02 17:14:19 +0100 | [diff] [blame] | 1656 | if (stream == NULL) |
| 1657 | return 0; |
| 1658 | |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1659 | mutex_lock(&codec->mutex); |
| 1660 | list_for_each_entry(w, &codec->dapm_widgets, list) |
| 1661 | { |
| 1662 | if (!w->sname) |
| 1663 | continue; |
Mark Brown | c1286b8 | 2008-07-07 19:26:03 +0100 | [diff] [blame] | 1664 | pr_debug("widget %s\n %s stream %s event %d\n", |
| 1665 | w->name, w->sname, stream, event); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1666 | if (strstr(w->sname, stream)) { |
| 1667 | switch(event) { |
| 1668 | case SND_SOC_DAPM_STREAM_START: |
| 1669 | w->active = 1; |
| 1670 | break; |
| 1671 | case SND_SOC_DAPM_STREAM_STOP: |
| 1672 | w->active = 0; |
| 1673 | break; |
| 1674 | case SND_SOC_DAPM_STREAM_SUSPEND: |
| 1675 | if (w->active) |
| 1676 | w->suspend = 1; |
| 1677 | w->active = 0; |
| 1678 | break; |
| 1679 | case SND_SOC_DAPM_STREAM_RESUME: |
| 1680 | if (w->suspend) { |
| 1681 | w->active = 1; |
| 1682 | w->suspend = 0; |
| 1683 | } |
| 1684 | break; |
| 1685 | case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
| 1686 | break; |
| 1687 | case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: |
| 1688 | break; |
| 1689 | } |
| 1690 | } |
| 1691 | } |
| 1692 | mutex_unlock(&codec->mutex); |
| 1693 | |
| 1694 | dapm_power_widgets(codec, event); |
Harvey Harrison | 9bf8e7d | 2008-03-03 15:32:18 -0800 | [diff] [blame] | 1695 | dump_dapm(codec, __func__); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1696 | return 0; |
| 1697 | } |
| 1698 | EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); |
| 1699 | |
| 1700 | /** |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1701 | * snd_soc_dapm_set_bias_level - set the bias level for the system |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 1702 | * @socdev: audio device |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1703 | * @level: level to configure |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 1704 | * |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1705 | * Configure the bias (power) levels for the SoC audio device. |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 1706 | * |
| 1707 | * Returns 0 for success else error. |
| 1708 | */ |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1709 | int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev, |
| 1710 | enum snd_soc_bias_level level) |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 1711 | { |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1712 | struct snd_soc_card *card = socdev->card; |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 1713 | struct snd_soc_codec *codec = socdev->card->codec; |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1714 | int ret = 0; |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 1715 | |
Mark Brown | 8750654 | 2008-11-18 20:50:34 +0000 | [diff] [blame] | 1716 | if (card->set_bias_level) |
| 1717 | ret = card->set_bias_level(card, level); |
Mark Brown | 0be9898 | 2008-05-19 12:31:28 +0200 | [diff] [blame] | 1718 | if (ret == 0 && codec->set_bias_level) |
| 1719 | ret = codec->set_bias_level(codec, level); |
| 1720 | |
| 1721 | return ret; |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 1722 | } |
Liam Girdwood | 0b4d221 | 2008-01-10 14:36:20 +0100 | [diff] [blame] | 1723 | |
| 1724 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1725 | * snd_soc_dapm_enable_pin - enable pin. |
Mark Brown | ac11a2b | 2009-01-01 12:18:17 +0000 | [diff] [blame] | 1726 | * @codec: SoC codec |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1727 | * @pin: pin name |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1728 | * |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1729 | * Enables input/output pin and it's parents or children widgets iff there is |
| 1730 | * a valid audio route and active audio stream. |
| 1731 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 1732 | * do any widget power switching. |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1733 | */ |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 1734 | 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] | 1735 | { |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1736 | return snd_soc_dapm_set_pin(codec, pin, 1); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1737 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1738 | EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1739 | |
| 1740 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1741 | * snd_soc_dapm_disable_pin - disable pin. |
| 1742 | * @codec: SoC codec |
| 1743 | * @pin: pin name |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 1744 | * |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1745 | * Disables input/output pin and it's parents or children widgets. |
| 1746 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 1747 | * do any widget power switching. |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 1748 | */ |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 1749 | 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] | 1750 | { |
| 1751 | return snd_soc_dapm_set_pin(codec, pin, 0); |
| 1752 | } |
| 1753 | EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
| 1754 | |
| 1755 | /** |
Mark Brown | 5817b52 | 2008-09-24 11:23:11 +0100 | [diff] [blame] | 1756 | * snd_soc_dapm_nc_pin - permanently disable pin. |
| 1757 | * @codec: SoC codec |
| 1758 | * @pin: pin name |
| 1759 | * |
| 1760 | * Marks the specified pin as being not connected, disabling it along |
| 1761 | * any parent or child widgets. At present this is identical to |
| 1762 | * snd_soc_dapm_disable_pin() but in future it will be extended to do |
| 1763 | * additional things such as disabling controls which only affect |
| 1764 | * paths through the pin. |
| 1765 | * |
| 1766 | * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to |
| 1767 | * do any widget power switching. |
| 1768 | */ |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 1769 | 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] | 1770 | { |
| 1771 | return snd_soc_dapm_set_pin(codec, pin, 0); |
| 1772 | } |
| 1773 | EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); |
| 1774 | |
| 1775 | /** |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1776 | * snd_soc_dapm_get_pin_status - get audio pin status |
| 1777 | * @codec: audio codec |
| 1778 | * @pin: audio signal pin endpoint (or start point) |
| 1779 | * |
| 1780 | * Get audio pin status - connected or disconnected. |
| 1781 | * |
| 1782 | * Returns 1 for connected otherwise 0. |
| 1783 | */ |
Mark Brown | 1649923 | 2009-01-07 18:25:13 +0000 | [diff] [blame] | 1784 | 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] | 1785 | { |
| 1786 | struct snd_soc_dapm_widget *w; |
| 1787 | |
| 1788 | list_for_each_entry(w, &codec->dapm_widgets, list) { |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1789 | if (!strcmp(w->name, pin)) |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 1790 | return w->connected; |
| 1791 | } |
| 1792 | |
| 1793 | return 0; |
| 1794 | } |
Liam Girdwood | a530218 | 2008-07-07 13:35:17 +0100 | [diff] [blame] | 1795 | EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
Graeme Gregory | eeec12b | 2008-04-30 19:27:40 +0200 | [diff] [blame] | 1796 | |
| 1797 | /** |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1798 | * snd_soc_dapm_free - free dapm resources |
| 1799 | * @socdev: SoC device |
| 1800 | * |
| 1801 | * Free all dapm widgets and resources. |
| 1802 | */ |
| 1803 | void snd_soc_dapm_free(struct snd_soc_device *socdev) |
| 1804 | { |
Mark Brown | 6627a65 | 2009-01-23 22:55:23 +0000 | [diff] [blame] | 1805 | struct snd_soc_codec *codec = socdev->card->codec; |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1806 | |
| 1807 | snd_soc_dapm_sys_remove(socdev->dev); |
| 1808 | dapm_free_widgets(codec); |
| 1809 | } |
| 1810 | EXPORT_SYMBOL_GPL(snd_soc_dapm_free); |
| 1811 | |
| 1812 | /* Module information */ |
Liam Girdwood | d331124 | 2008-10-12 13:17:36 +0100 | [diff] [blame] | 1813 | MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
Richard Purdie | 2b97eab | 2006-10-06 18:32:18 +0200 | [diff] [blame] | 1814 | MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); |
| 1815 | MODULE_LICENSE("GPL"); |