linux/include/sound/soc.h
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   1/*
   2 * linux/sound/soc.h -- ALSA SoC Layer
   3 *
   4 * Author:              Liam Girdwood
   5 * Created:             Aug 11th 2005
   6 * Copyright:   Wolfson Microelectronics. PLC.
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11 */
  12
  13#ifndef __LINUX_SND_SOC_H
  14#define __LINUX_SND_SOC_H
  15
  16#include <linux/platform_device.h>
  17#include <linux/types.h>
  18#include <linux/notifier.h>
  19#include <linux/workqueue.h>
  20#include <linux/interrupt.h>
  21#include <linux/kernel.h>
  22#include <linux/regmap.h>
  23#include <sound/core.h>
  24#include <sound/pcm.h>
  25#include <sound/control.h>
  26#include <sound/ac97_codec.h>
  27
  28/*
  29 * Convenience kcontrol builders
  30 */
  31#define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert) \
  32        ((unsigned long)&(struct soc_mixer_control) \
  33        {.reg = xreg, .rreg = xreg, .shift = shift_left, \
  34        .rshift = shift_right, .max = xmax, .platform_max = xmax, \
  35        .invert = xinvert})
  36#define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
  37        SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert)
  38#define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
  39        ((unsigned long)&(struct soc_mixer_control) \
  40        {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
  41#define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
  42        ((unsigned long)&(struct soc_mixer_control) \
  43        {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  44        .max = xmax, .platform_max = xmax, .invert = xinvert})
  45#define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \
  46        ((unsigned long)&(struct soc_mixer_control) \
  47        {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  48        .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert})
  49#define SOC_SINGLE(xname, reg, shift, max, invert) \
  50{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  51        .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  52        .put = snd_soc_put_volsw, \
  53        .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  54#define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
  55{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  56        .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
  57        .put = snd_soc_put_volsw_range, \
  58        .private_value = (unsigned long)&(struct soc_mixer_control) \
  59                {.reg = xreg, .shift = xshift, .min = xmin,\
  60                 .max = xmax, .platform_max = xmax, .invert = xinvert} }
  61#define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  62{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  63        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  64                 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  65        .tlv.p = (tlv_array), \
  66        .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  67        .put = snd_soc_put_volsw, \
  68        .private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
  69#define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
  70{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  71        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  72        SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  73        .tlv.p  = (tlv_array),\
  74        .info = snd_soc_info_volsw, \
  75        .get = snd_soc_get_volsw_sx,\
  76        .put = snd_soc_put_volsw_sx, \
  77        .private_value = (unsigned long)&(struct soc_mixer_control) \
  78                {.reg = xreg, .rreg = xreg, \
  79                .shift = xshift, .rshift = xshift, \
  80                .max = xmax, .min = xmin} }
  81#define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
  82{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  83        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  84                 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  85        .tlv.p = (tlv_array), \
  86        .info = snd_soc_info_volsw_range, \
  87        .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
  88        .private_value = (unsigned long)&(struct soc_mixer_control) \
  89                {.reg = xreg, .shift = xshift, .min = xmin,\
  90                 .max = xmax, .platform_max = xmax, .invert = xinvert} }
  91#define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
  92{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  93        .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
  94        .put = snd_soc_put_volsw, \
  95        .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
  96                                          max, invert) }
  97#define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
  98{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
  99        .info = snd_soc_info_volsw, \
 100        .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 101        .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 102                                            xmax, xinvert) }
 103#define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
 104                           xmax, xinvert)               \
 105{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 106        .info = snd_soc_info_volsw_range, \
 107        .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 108        .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 109                                            xshift, xmin, xmax, xinvert) }
 110#define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \
 111{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 112        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 113                 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 114        .tlv.p = (tlv_array), \
 115        .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 116        .put = snd_soc_put_volsw, \
 117        .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 118                                          max, invert) }
 119#define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
 120{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 121        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 122                 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 123        .tlv.p = (tlv_array), \
 124        .info = snd_soc_info_volsw, \
 125        .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 126        .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 127                                            xmax, xinvert) }
 128#define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
 129                               xmax, xinvert, tlv_array)                \
 130{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 131        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 132                 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 133        .tlv.p = (tlv_array), \
 134        .info = snd_soc_info_volsw_range, \
 135        .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 136        .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 137                                            xshift, xmin, xmax, xinvert) }
 138#define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
 139{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 140        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 141        SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 142        .tlv.p  = (tlv_array), \
 143        .info = snd_soc_info_volsw, \
 144        .get = snd_soc_get_volsw_sx, \
 145        .put = snd_soc_put_volsw_sx, \
 146        .private_value = (unsigned long)&(struct soc_mixer_control) \
 147                {.reg = xreg, .rreg = xrreg, \
 148                .shift = xshift, .rshift = xshift, \
 149                .max = xmax, .min = xmin} }
 150#define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
 151{       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 152        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 153                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 154        .tlv.p  = (tlv_array), \
 155        .info   = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
 156        .put    = snd_soc_put_volsw_s8, \
 157        .private_value = (unsigned long)&(struct soc_mixer_control) \
 158                {.reg = xreg, .min = xmin, .max = xmax, \
 159                 .platform_max = xmax} }
 160#define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
 161{       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 162        .max = xmax, .texts = xtexts }
 163#define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
 164        SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
 165#define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
 166{       .max = xmax, .texts = xtexts }
 167#define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
 168{       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 169        .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
 170#define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
 171        SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
 172#define SOC_ENUM(xname, xenum) \
 173{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 174        .info = snd_soc_info_enum_double, \
 175        .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 176        .private_value = (unsigned long)&xenum }
 177#define SOC_VALUE_ENUM(xname, xenum) \
 178{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 179        .info = snd_soc_info_enum_double, \
 180        .get = snd_soc_get_value_enum_double, \
 181        .put = snd_soc_put_value_enum_double, \
 182        .private_value = (unsigned long)&xenum }
 183#define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 184         xhandler_get, xhandler_put) \
 185{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 186        .info = snd_soc_info_volsw, \
 187        .get = xhandler_get, .put = xhandler_put, \
 188        .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 189#define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
 190         xhandler_get, xhandler_put) \
 191{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 192        .info = snd_soc_info_volsw, \
 193        .get = xhandler_get, .put = xhandler_put, \
 194        .private_value = \
 195                SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert) }
 196#define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 197         xhandler_get, xhandler_put, tlv_array) \
 198{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 199        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 200                 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 201        .tlv.p = (tlv_array), \
 202        .info = snd_soc_info_volsw, \
 203        .get = xhandler_get, .put = xhandler_put, \
 204        .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
 205#define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 206         xhandler_get, xhandler_put, tlv_array) \
 207{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 208        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 209                 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 210        .tlv.p = (tlv_array), \
 211        .info = snd_soc_info_volsw, \
 212        .get = xhandler_get, .put = xhandler_put, \
 213        .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
 214                                          xmax, xinvert) }
 215#define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 216         xhandler_get, xhandler_put, tlv_array) \
 217{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 218        .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 219                 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 220        .tlv.p = (tlv_array), \
 221        .info = snd_soc_info_volsw, \
 222        .get = xhandler_get, .put = xhandler_put, \
 223        .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 224                                            xmax, xinvert) }
 225#define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 226{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 227        .info = snd_soc_info_bool_ext, \
 228        .get = xhandler_get, .put = xhandler_put, \
 229        .private_value = xdata }
 230#define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 231{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 232        .info = snd_soc_info_enum_ext, \
 233        .get = xhandler_get, .put = xhandler_put, \
 234        .private_value = (unsigned long)&xenum }
 235
 236#define SND_SOC_BYTES(xname, xbase, xregs)                    \
 237{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 238        .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 239        .put = snd_soc_bytes_put, .private_value =            \
 240                ((unsigned long)&(struct soc_bytes)           \
 241                {.base = xbase, .num_regs = xregs }) }
 242
 243#define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
 244{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 245        .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 246        .put = snd_soc_bytes_put, .private_value =            \
 247                ((unsigned long)&(struct soc_bytes)           \
 248                {.base = xbase, .num_regs = xregs,            \
 249                 .mask = xmask }) }
 250
 251#define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
 252                xmin, xmax, xinvert) \
 253{       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 254        .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
 255        .put = snd_soc_put_xr_sx, \
 256        .private_value = (unsigned long)&(struct soc_mreg_control) \
 257                {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
 258                .invert = xinvert, .min = xmin, .max = xmax} }
 259
 260#define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
 261        SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
 262                snd_soc_get_strobe, snd_soc_put_strobe)
 263
 264/*
 265 * Simplified versions of above macros, declaring a struct and calculating
 266 * ARRAY_SIZE internally
 267 */
 268#define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 269        struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 270                                                ARRAY_SIZE(xtexts), xtexts)
 271#define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 272        SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 273#define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 274        struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 275#define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 276        struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 277                                                        ARRAY_SIZE(xtexts), xtexts, xvalues)
 278#define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 279        SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 280
 281/*
 282 * Component probe and remove ordering levels for components with runtime
 283 * dependencies.
 284 */
 285#define SND_SOC_COMP_ORDER_FIRST                -2
 286#define SND_SOC_COMP_ORDER_EARLY                -1
 287#define SND_SOC_COMP_ORDER_NORMAL               0
 288#define SND_SOC_COMP_ORDER_LATE         1
 289#define SND_SOC_COMP_ORDER_LAST         2
 290
 291/*
 292 * Bias levels
 293 *
 294 * @ON:      Bias is fully on for audio playback and capture operations.
 295 * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 296 *           stream start and stop operations.
 297 * @STANDBY: Low power standby state when no playback/capture operations are
 298 *           in progress. NOTE: The transition time between STANDBY and ON
 299 *           should be as fast as possible and no longer than 10ms.
 300 * @OFF:     Power Off. No restrictions on transition times.
 301 */
 302enum snd_soc_bias_level {
 303        SND_SOC_BIAS_OFF = 0,
 304        SND_SOC_BIAS_STANDBY = 1,
 305        SND_SOC_BIAS_PREPARE = 2,
 306        SND_SOC_BIAS_ON = 3,
 307};
 308
 309struct device_node;
 310struct snd_jack;
 311struct snd_soc_card;
 312struct snd_soc_pcm_stream;
 313struct snd_soc_ops;
 314struct snd_soc_pcm_runtime;
 315struct snd_soc_dai;
 316struct snd_soc_dai_driver;
 317struct snd_soc_platform;
 318struct snd_soc_dai_link;
 319struct snd_soc_platform_driver;
 320struct snd_soc_codec;
 321struct snd_soc_codec_driver;
 322struct soc_enum;
 323struct snd_soc_jack;
 324struct snd_soc_jack_zone;
 325struct snd_soc_jack_pin;
 326struct snd_soc_cache_ops;
 327#include <sound/soc-dapm.h>
 328#include <sound/soc-dpcm.h>
 329
 330#ifdef CONFIG_GPIOLIB
 331struct snd_soc_jack_gpio;
 332#endif
 333
 334typedef int (*hw_write_t)(void *,const char* ,int);
 335
 336extern struct snd_ac97_bus_ops soc_ac97_ops;
 337
 338enum snd_soc_control_type {
 339        SND_SOC_I2C = 1,
 340        SND_SOC_SPI,
 341        SND_SOC_REGMAP,
 342};
 343
 344enum snd_soc_compress_type {
 345        SND_SOC_FLAT_COMPRESSION = 1,
 346};
 347
 348enum snd_soc_pcm_subclass {
 349        SND_SOC_PCM_CLASS_PCM   = 0,
 350        SND_SOC_PCM_CLASS_BE    = 1,
 351};
 352
 353enum snd_soc_card_subclass {
 354        SND_SOC_CARD_CLASS_INIT         = 0,
 355        SND_SOC_CARD_CLASS_RUNTIME      = 1,
 356};
 357
 358int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 359                             int source, unsigned int freq, int dir);
 360int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 361                          unsigned int freq_in, unsigned int freq_out);
 362
 363int snd_soc_register_card(struct snd_soc_card *card);
 364int snd_soc_unregister_card(struct snd_soc_card *card);
 365int snd_soc_suspend(struct device *dev);
 366int snd_soc_resume(struct device *dev);
 367int snd_soc_poweroff(struct device *dev);
 368int snd_soc_register_platform(struct device *dev,
 369                struct snd_soc_platform_driver *platform_drv);
 370void snd_soc_unregister_platform(struct device *dev);
 371int snd_soc_register_codec(struct device *dev,
 372                const struct snd_soc_codec_driver *codec_drv,
 373                struct snd_soc_dai_driver *dai_drv, int num_dai);
 374void snd_soc_unregister_codec(struct device *dev);
 375int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 376                                    unsigned int reg);
 377int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
 378                                    unsigned int reg);
 379int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
 380                                    unsigned int reg);
 381int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 382                               int addr_bits, int data_bits,
 383                               enum snd_soc_control_type control);
 384int snd_soc_cache_sync(struct snd_soc_codec *codec);
 385int snd_soc_cache_init(struct snd_soc_codec *codec);
 386int snd_soc_cache_exit(struct snd_soc_codec *codec);
 387int snd_soc_cache_write(struct snd_soc_codec *codec,
 388                        unsigned int reg, unsigned int value);
 389int snd_soc_cache_read(struct snd_soc_codec *codec,
 390                       unsigned int reg, unsigned int *value);
 391int snd_soc_default_volatile_register(struct snd_soc_codec *codec,
 392                                      unsigned int reg);
 393int snd_soc_default_readable_register(struct snd_soc_codec *codec,
 394                                      unsigned int reg);
 395int snd_soc_default_writable_register(struct snd_soc_codec *codec,
 396                                      unsigned int reg);
 397int snd_soc_platform_read(struct snd_soc_platform *platform,
 398                                        unsigned int reg);
 399int snd_soc_platform_write(struct snd_soc_platform *platform,
 400                                        unsigned int reg, unsigned int val);
 401int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 402
 403struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 404                const char *dai_link, int stream);
 405struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 406                const char *dai_link);
 407
 408/* Utility functions to get clock rates from various things */
 409int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 410int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 411int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 412int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 413
 414/* set runtime hw params */
 415int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 416        const struct snd_pcm_hardware *hw);
 417
 418int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 419                int cmd, struct snd_soc_platform *platform);
 420
 421/* Jack reporting */
 422int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 423                     struct snd_soc_jack *jack);
 424void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 425int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 426                          struct snd_soc_jack_pin *pins);
 427void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 428                                    struct notifier_block *nb);
 429void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 430                                      struct notifier_block *nb);
 431int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 432                          struct snd_soc_jack_zone *zones);
 433int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 434#ifdef CONFIG_GPIOLIB
 435int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 436                        struct snd_soc_jack_gpio *gpios);
 437void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 438                        struct snd_soc_jack_gpio *gpios);
 439#endif
 440
 441/* codec register bit access */
 442int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 443                                unsigned int mask, unsigned int value);
 444int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 445                               unsigned short reg, unsigned int mask,
 446                               unsigned int value);
 447int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 448                                unsigned int mask, unsigned int value);
 449
 450int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 451        struct snd_ac97_bus_ops *ops, int num);
 452void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 453
 454/*
 455 *Controls
 456 */
 457struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 458                                  void *data, const char *long_name,
 459                                  const char *prefix);
 460int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 461        const struct snd_kcontrol_new *controls, int num_controls);
 462int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 463        const struct snd_kcontrol_new *controls, int num_controls);
 464int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 465        const struct snd_kcontrol_new *controls, int num_controls);
 466int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 467        const struct snd_kcontrol_new *controls, int num_controls);
 468int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 469        struct snd_ctl_elem_info *uinfo);
 470int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
 471        struct snd_ctl_elem_info *uinfo);
 472int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 473        struct snd_ctl_elem_value *ucontrol);
 474int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 475        struct snd_ctl_elem_value *ucontrol);
 476int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
 477        struct snd_ctl_elem_value *ucontrol);
 478int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
 479        struct snd_ctl_elem_value *ucontrol);
 480int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 481        struct snd_ctl_elem_info *uinfo);
 482int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
 483        struct snd_ctl_elem_info *uinfo);
 484#define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 485int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 486        struct snd_ctl_elem_value *ucontrol);
 487int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 488        struct snd_ctl_elem_value *ucontrol);
 489#define snd_soc_get_volsw_2r snd_soc_get_volsw
 490#define snd_soc_put_volsw_2r snd_soc_put_volsw
 491int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 492        struct snd_ctl_elem_value *ucontrol);
 493int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 494        struct snd_ctl_elem_value *ucontrol);
 495int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
 496        struct snd_ctl_elem_info *uinfo);
 497int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 498        struct snd_ctl_elem_value *ucontrol);
 499int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 500        struct snd_ctl_elem_value *ucontrol);
 501int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
 502        struct snd_ctl_elem_info *uinfo);
 503int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 504        struct snd_ctl_elem_value *ucontrol);
 505int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
 506        struct snd_ctl_elem_value *ucontrol);
 507int snd_soc_limit_volume(struct snd_soc_codec *codec,
 508        const char *name, int max);
 509int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
 510                       struct snd_ctl_elem_info *uinfo);
 511int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 512                      struct snd_ctl_elem_value *ucontrol);
 513int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 514                      struct snd_ctl_elem_value *ucontrol);
 515int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
 516        struct snd_ctl_elem_info *uinfo);
 517int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
 518        struct snd_ctl_elem_value *ucontrol);
 519int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 520        struct snd_ctl_elem_value *ucontrol);
 521int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 522        struct snd_ctl_elem_value *ucontrol);
 523int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 524        struct snd_ctl_elem_value *ucontrol);
 525
 526/**
 527 * struct snd_soc_reg_access - Describes whether a given register is
 528 * readable, writable or volatile.
 529 *
 530 * @reg: the register number
 531 * @read: whether this register is readable
 532 * @write: whether this register is writable
 533 * @vol: whether this register is volatile
 534 */
 535struct snd_soc_reg_access {
 536        u16 reg;
 537        u16 read;
 538        u16 write;
 539        u16 vol;
 540};
 541
 542/**
 543 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 544 *
 545 * @pin:    name of the pin to update
 546 * @mask:   bits to check for in reported jack status
 547 * @invert: if non-zero then pin is enabled when status is not reported
 548 */
 549struct snd_soc_jack_pin {
 550        struct list_head list;
 551        const char *pin;
 552        int mask;
 553        bool invert;
 554};
 555
 556/**
 557 * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 558 *
 559 * @min_mv: start voltage in mv
 560 * @max_mv: end voltage in mv
 561 * @jack_type: type of jack that is expected for this voltage
 562 * @debounce_time: debounce_time for jack, codec driver should wait for this
 563 *              duration before reading the adc for voltages
 564 * @:list: list container
 565 */
 566struct snd_soc_jack_zone {
 567        unsigned int min_mv;
 568        unsigned int max_mv;
 569        unsigned int jack_type;
 570        unsigned int debounce_time;
 571        struct list_head list;
 572};
 573
 574/**
 575 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 576 *
 577 * @gpio:         gpio number
 578 * @name:         gpio name
 579 * @report:       value to report when jack detected
 580 * @invert:       report presence in low state
 581 * @debouce_time: debouce time in ms
 582 * @wake:         enable as wake source
 583 * @jack_status_check: callback function which overrides the detection
 584 *                     to provide more complex checks (eg, reading an
 585 *                     ADC).
 586 */
 587#ifdef CONFIG_GPIOLIB
 588struct snd_soc_jack_gpio {
 589        unsigned int gpio;
 590        const char *name;
 591        int report;
 592        int invert;
 593        int debounce_time;
 594        bool wake;
 595
 596        struct snd_soc_jack *jack;
 597        struct delayed_work work;
 598
 599        int (*jack_status_check)(void);
 600};
 601#endif
 602
 603struct snd_soc_jack {
 604        struct mutex mutex;
 605        struct snd_jack *jack;
 606        struct snd_soc_codec *codec;
 607        struct list_head pins;
 608        int status;
 609        struct blocking_notifier_head notifier;
 610        struct list_head jack_zones;
 611};
 612
 613/* SoC PCM stream information */
 614struct snd_soc_pcm_stream {
 615        const char *stream_name;
 616        u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 617        unsigned int rates;             /* SNDRV_PCM_RATE_* */
 618        unsigned int rate_min;          /* min rate */
 619        unsigned int rate_max;          /* max rate */
 620        unsigned int channels_min;      /* min channels */
 621        unsigned int channels_max;      /* max channels */
 622        unsigned int sig_bits;          /* number of bits of content */
 623};
 624
 625/* SoC audio ops */
 626struct snd_soc_ops {
 627        int (*startup)(struct snd_pcm_substream *);
 628        void (*shutdown)(struct snd_pcm_substream *);
 629        int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 630        int (*hw_free)(struct snd_pcm_substream *);
 631        int (*prepare)(struct snd_pcm_substream *);
 632        int (*trigger)(struct snd_pcm_substream *, int);
 633};
 634
 635/* SoC cache ops */
 636struct snd_soc_cache_ops {
 637        const char *name;
 638        enum snd_soc_compress_type id;
 639        int (*init)(struct snd_soc_codec *codec);
 640        int (*exit)(struct snd_soc_codec *codec);
 641        int (*read)(struct snd_soc_codec *codec, unsigned int reg,
 642                unsigned int *value);
 643        int (*write)(struct snd_soc_codec *codec, unsigned int reg,
 644                unsigned int value);
 645        int (*sync)(struct snd_soc_codec *codec);
 646};
 647
 648/* SoC Audio Codec device */
 649struct snd_soc_codec {
 650        const char *name;
 651        const char *name_prefix;
 652        int id;
 653        struct device *dev;
 654        const struct snd_soc_codec_driver *driver;
 655
 656        struct mutex mutex;
 657        struct snd_soc_card *card;
 658        struct list_head list;
 659        struct list_head card_list;
 660        int num_dai;
 661        enum snd_soc_compress_type compress_type;
 662        size_t reg_size;        /* reg_cache_size * reg_word_size */
 663        int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 664        int (*readable_register)(struct snd_soc_codec *, unsigned int);
 665        int (*writable_register)(struct snd_soc_codec *, unsigned int);
 666
 667        /* runtime */
 668        struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 669        unsigned int active;
 670        unsigned int cache_bypass:1; /* Suppress access to the cache */
 671        unsigned int suspended:1; /* Codec is in suspend PM state */
 672        unsigned int probed:1; /* Codec has been probed */
 673        unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 674        unsigned int ac97_created:1; /* Codec has been created by SoC */
 675        unsigned int sysfs_registered:1; /* codec has been sysfs registered */
 676        unsigned int cache_init:1; /* codec cache has been initialized */
 677        unsigned int using_regmap:1; /* using regmap access */
 678        u32 cache_only;  /* Suppress writes to hardware */
 679        u32 cache_sync; /* Cache needs to be synced to hardware */
 680
 681        /* codec IO */
 682        void *control_data; /* codec control (i2c/3wire) data */
 683        enum snd_soc_control_type control_type;
 684        hw_write_t hw_write;
 685        unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 686        unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 687        int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 688        int (*bulk_write_raw)(struct snd_soc_codec *, unsigned int, const void *, size_t);
 689        void *reg_cache;
 690        const void *reg_def_copy;
 691        const struct snd_soc_cache_ops *cache_ops;
 692        struct mutex cache_rw_mutex;
 693        int val_bytes;
 694
 695        /* dapm */
 696        struct snd_soc_dapm_context dapm;
 697        unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 698
 699#ifdef CONFIG_DEBUG_FS
 700        struct dentry *debugfs_codec_root;
 701        struct dentry *debugfs_reg;
 702        struct dentry *debugfs_dapm;
 703#endif
 704};
 705
 706/* codec driver */
 707struct snd_soc_codec_driver {
 708
 709        /* driver ops */
 710        int (*probe)(struct snd_soc_codec *);
 711        int (*remove)(struct snd_soc_codec *);
 712        int (*suspend)(struct snd_soc_codec *);
 713        int (*resume)(struct snd_soc_codec *);
 714
 715        /* Default control and setup, added after probe() is run */
 716        const struct snd_kcontrol_new *controls;
 717        int num_controls;
 718        const struct snd_soc_dapm_widget *dapm_widgets;
 719        int num_dapm_widgets;
 720        const struct snd_soc_dapm_route *dapm_routes;
 721        int num_dapm_routes;
 722
 723        /* codec wide operations */
 724        int (*set_sysclk)(struct snd_soc_codec *codec,
 725                          int clk_id, int source, unsigned int freq, int dir);
 726        int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 727                unsigned int freq_in, unsigned int freq_out);
 728
 729        /* codec IO */
 730        unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 731        int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 732        int (*display_register)(struct snd_soc_codec *, char *,
 733                                size_t, unsigned int);
 734        int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 735        int (*readable_register)(struct snd_soc_codec *, unsigned int);
 736        int (*writable_register)(struct snd_soc_codec *, unsigned int);
 737        unsigned int reg_cache_size;
 738        short reg_cache_step;
 739        short reg_word_size;
 740        const void *reg_cache_default;
 741        short reg_access_size;
 742        const struct snd_soc_reg_access *reg_access_default;
 743        enum snd_soc_compress_type compress_type;
 744
 745        /* codec bias level */
 746        int (*set_bias_level)(struct snd_soc_codec *,
 747                              enum snd_soc_bias_level level);
 748        bool idle_bias_off;
 749
 750        void (*seq_notifier)(struct snd_soc_dapm_context *,
 751                             enum snd_soc_dapm_type, int);
 752
 753        /* codec stream completion event */
 754        int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 755
 756        bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 757
 758        /* probe ordering - for components with runtime dependencies */
 759        int probe_order;
 760        int remove_order;
 761};
 762
 763/* SoC platform interface */
 764struct snd_soc_platform_driver {
 765
 766        int (*probe)(struct snd_soc_platform *);
 767        int (*remove)(struct snd_soc_platform *);
 768        int (*suspend)(struct snd_soc_dai *dai);
 769        int (*resume)(struct snd_soc_dai *dai);
 770
 771        /* pcm creation and destruction */
 772        int (*pcm_new)(struct snd_soc_pcm_runtime *);
 773        void (*pcm_free)(struct snd_pcm *);
 774
 775        /* Default control and setup, added after probe() is run */
 776        const struct snd_kcontrol_new *controls;
 777        int num_controls;
 778        const struct snd_soc_dapm_widget *dapm_widgets;
 779        int num_dapm_widgets;
 780        const struct snd_soc_dapm_route *dapm_routes;
 781        int num_dapm_routes;
 782
 783        /*
 784         * For platform caused delay reporting.
 785         * Optional.
 786         */
 787        snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 788                struct snd_soc_dai *);
 789
 790        /* platform stream ops */
 791        struct snd_pcm_ops *ops;
 792
 793        /* platform stream completion event */
 794        int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 795
 796        /* probe ordering - for components with runtime dependencies */
 797        int probe_order;
 798        int remove_order;
 799
 800        /* platform IO - used for platform DAPM */
 801        unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 802        int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 803        int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 804};
 805
 806struct snd_soc_platform {
 807        const char *name;
 808        int id;
 809        struct device *dev;
 810        struct snd_soc_platform_driver *driver;
 811        struct mutex mutex;
 812
 813        unsigned int suspended:1; /* platform is suspended */
 814        unsigned int probed:1;
 815
 816        struct snd_soc_card *card;
 817        struct list_head list;
 818        struct list_head card_list;
 819
 820        struct snd_soc_dapm_context dapm;
 821
 822#ifdef CONFIG_DEBUG_FS
 823        struct dentry *debugfs_platform_root;
 824        struct dentry *debugfs_dapm;
 825#endif
 826};
 827
 828struct snd_soc_dai_link {
 829        /* config - must be set by machine driver */
 830        const char *name;                       /* Codec name */
 831        const char *stream_name;                /* Stream name */
 832        /*
 833         * You MAY specify the link's CPU-side device, either by device name,
 834         * or by DT/OF node, but not both. If this information is omitted,
 835         * the CPU-side DAI is matched using .cpu_dai_name only, which hence
 836         * must be globally unique. These fields are currently typically used
 837         * only for codec to codec links, or systems using device tree.
 838         */
 839        const char *cpu_name;
 840        const struct device_node *cpu_of_node;
 841        /*
 842         * You MAY specify the DAI name of the CPU DAI. If this information is
 843         * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
 844         * only, which only works well when that device exposes a single DAI.
 845         */
 846        const char *cpu_dai_name;
 847        /*
 848         * You MUST specify the link's codec, either by device name, or by
 849         * DT/OF node, but not both.
 850         */
 851        const char *codec_name;
 852        const struct device_node *codec_of_node;
 853        /* You MUST specify the DAI name within the codec */
 854        const char *codec_dai_name;
 855        /*
 856         * You MAY specify the link's platform/PCM/DMA driver, either by
 857         * device name, or by DT/OF node, but not both. Some forms of link
 858         * do not need a platform.
 859         */
 860        const char *platform_name;
 861        const struct device_node *platform_of_node;
 862        int be_id;      /* optional ID for machine driver BE identification */
 863
 864        const struct snd_soc_pcm_stream *params;
 865
 866        unsigned int dai_fmt;           /* format to set on init */
 867
 868        enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
 869
 870        /* Keep DAI active over suspend */
 871        unsigned int ignore_suspend:1;
 872
 873        /* Symmetry requirements */
 874        unsigned int symmetric_rates:1;
 875
 876        /* Do not create a PCM for this DAI link (Backend link) */
 877        unsigned int no_pcm:1;
 878
 879        /* This DAI link can route to other DAI links at runtime (Frontend)*/
 880        unsigned int dynamic:1;
 881
 882        /* pmdown_time is ignored at stop */
 883        unsigned int ignore_pmdown_time:1;
 884
 885        /* codec/machine specific init - e.g. add machine controls */
 886        int (*init)(struct snd_soc_pcm_runtime *rtd);
 887
 888        /* optional hw_params re-writing for BE and FE sync */
 889        int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 890                        struct snd_pcm_hw_params *params);
 891
 892        /* machine stream operations */
 893        struct snd_soc_ops *ops;
 894};
 895
 896struct snd_soc_codec_conf {
 897        const char *dev_name;
 898
 899        /*
 900         * optional map of kcontrol, widget and path name prefixes that are
 901         * associated per device
 902         */
 903        const char *name_prefix;
 904
 905        /*
 906         * set this to the desired compression type if you want to
 907         * override the one supplied in codec->driver->compress_type
 908         */
 909        enum snd_soc_compress_type compress_type;
 910};
 911
 912struct snd_soc_aux_dev {
 913        const char *name;               /* Codec name */
 914        const char *codec_name;         /* for multi-codec */
 915
 916        /* codec/machine specific init - e.g. add machine controls */
 917        int (*init)(struct snd_soc_dapm_context *dapm);
 918};
 919
 920/* SoC card */
 921struct snd_soc_card {
 922        const char *name;
 923        const char *long_name;
 924        const char *driver_name;
 925        struct device *dev;
 926        struct snd_card *snd_card;
 927        struct module *owner;
 928
 929        struct list_head list;
 930        struct mutex mutex;
 931        struct mutex dapm_mutex;
 932
 933        bool instantiated;
 934
 935        int (*probe)(struct snd_soc_card *card);
 936        int (*late_probe)(struct snd_soc_card *card);
 937        int (*remove)(struct snd_soc_card *card);
 938
 939        /* the pre and post PM functions are used to do any PM work before and
 940         * after the codec and DAI's do any PM work. */
 941        int (*suspend_pre)(struct snd_soc_card *card);
 942        int (*suspend_post)(struct snd_soc_card *card);
 943        int (*resume_pre)(struct snd_soc_card *card);
 944        int (*resume_post)(struct snd_soc_card *card);
 945
 946        /* callbacks */
 947        int (*set_bias_level)(struct snd_soc_card *,
 948                              struct snd_soc_dapm_context *dapm,
 949                              enum snd_soc_bias_level level);
 950        int (*set_bias_level_post)(struct snd_soc_card *,
 951                                   struct snd_soc_dapm_context *dapm,
 952                                   enum snd_soc_bias_level level);
 953
 954        long pmdown_time;
 955
 956        /* CPU <--> Codec DAI links  */
 957        struct snd_soc_dai_link *dai_link;
 958        int num_links;
 959        struct snd_soc_pcm_runtime *rtd;
 960        int num_rtd;
 961
 962        /* optional codec specific configuration */
 963        struct snd_soc_codec_conf *codec_conf;
 964        int num_configs;
 965
 966        /*
 967         * optional auxiliary devices such as amplifiers or codecs with DAI
 968         * link unused
 969         */
 970        struct snd_soc_aux_dev *aux_dev;
 971        int num_aux_devs;
 972        struct snd_soc_pcm_runtime *rtd_aux;
 973        int num_aux_rtd;
 974
 975        const struct snd_kcontrol_new *controls;
 976        int num_controls;
 977
 978        /*
 979         * Card-specific routes and widgets.
 980         */
 981        const struct snd_soc_dapm_widget *dapm_widgets;
 982        int num_dapm_widgets;
 983        const struct snd_soc_dapm_route *dapm_routes;
 984        int num_dapm_routes;
 985        bool fully_routed;
 986
 987        struct work_struct deferred_resume_work;
 988
 989        /* lists of probed devices belonging to this card */
 990        struct list_head codec_dev_list;
 991        struct list_head platform_dev_list;
 992        struct list_head dai_dev_list;
 993
 994        struct list_head widgets;
 995        struct list_head paths;
 996        struct list_head dapm_list;
 997        struct list_head dapm_dirty;
 998
 999        /* Generic DAPM context for the card */
1000        struct snd_soc_dapm_context dapm;
1001        struct snd_soc_dapm_stats dapm_stats;
1002
1003#ifdef CONFIG_DEBUG_FS
1004        struct dentry *debugfs_card_root;
1005        struct dentry *debugfs_pop_time;
1006#endif
1007        u32 pop_time;
1008
1009        void *drvdata;
1010};
1011
1012/* SoC machine DAI configuration, glues a codec and cpu DAI together */
1013struct snd_soc_pcm_runtime {
1014        struct device *dev;
1015        struct snd_soc_card *card;
1016        struct snd_soc_dai_link *dai_link;
1017        struct mutex pcm_mutex;
1018        enum snd_soc_pcm_subclass pcm_subclass;
1019        struct snd_pcm_ops ops;
1020
1021        unsigned int dev_registered:1;
1022
1023        /* Dynamic PCM BE runtime data */
1024        struct snd_soc_dpcm_runtime dpcm[2];
1025
1026        long pmdown_time;
1027
1028        /* runtime devices */
1029        struct snd_pcm *pcm;
1030        struct snd_soc_codec *codec;
1031        struct snd_soc_platform *platform;
1032        struct snd_soc_dai *codec_dai;
1033        struct snd_soc_dai *cpu_dai;
1034
1035        struct delayed_work delayed_work;
1036#ifdef CONFIG_DEBUG_FS
1037        struct dentry *debugfs_dpcm_root;
1038        struct dentry *debugfs_dpcm_state;
1039#endif
1040};
1041
1042/* mixer control */
1043struct soc_mixer_control {
1044        int min, max, platform_max;
1045        unsigned int reg, rreg, shift, rshift, invert;
1046};
1047
1048struct soc_bytes {
1049        int base;
1050        int num_regs;
1051        u32 mask;
1052};
1053
1054/* multi register control */
1055struct soc_mreg_control {
1056        long min, max;
1057        unsigned int regbase, regcount, nbits, invert;
1058};
1059
1060/* enumerated kcontrol */
1061struct soc_enum {
1062        unsigned short reg;
1063        unsigned short reg2;
1064        unsigned char shift_l;
1065        unsigned char shift_r;
1066        unsigned int max;
1067        unsigned int mask;
1068        const char * const *texts;
1069        const unsigned int *values;
1070        void *dapm;
1071};
1072
1073/* codec IO */
1074unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1075unsigned int snd_soc_write(struct snd_soc_codec *codec,
1076                           unsigned int reg, unsigned int val);
1077unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
1078                                    unsigned int reg, const void *data, size_t len);
1079
1080/* device driver data */
1081
1082static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1083                void *data)
1084{
1085        card->drvdata = data;
1086}
1087
1088static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1089{
1090        return card->drvdata;
1091}
1092
1093static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1094                void *data)
1095{
1096        dev_set_drvdata(codec->dev, data);
1097}
1098
1099static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1100{
1101        return dev_get_drvdata(codec->dev);
1102}
1103
1104static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1105                void *data)
1106{
1107        dev_set_drvdata(platform->dev, data);
1108}
1109
1110static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1111{
1112        return dev_get_drvdata(platform->dev);
1113}
1114
1115static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1116                void *data)
1117{
1118        dev_set_drvdata(rtd->dev, data);
1119}
1120
1121static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1122{
1123        return dev_get_drvdata(rtd->dev);
1124}
1125
1126static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1127{
1128        INIT_LIST_HEAD(&card->dai_dev_list);
1129        INIT_LIST_HEAD(&card->codec_dev_list);
1130        INIT_LIST_HEAD(&card->platform_dev_list);
1131        INIT_LIST_HEAD(&card->widgets);
1132        INIT_LIST_HEAD(&card->paths);
1133        INIT_LIST_HEAD(&card->dapm_list);
1134}
1135
1136static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1137{
1138        if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1139                return 0;
1140        /*
1141         * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1142         * mc->reg != mc->rreg means that the control is
1143         * stereo (bits in one register or in two registers)
1144         */
1145        return 1;
1146}
1147
1148int snd_soc_util_init(void);
1149void snd_soc_util_exit(void);
1150
1151int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1152                               const char *propname);
1153int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1154                                   const char *propname);
1155
1156#include <sound/soc-dai.h>
1157
1158#ifdef CONFIG_DEBUG_FS
1159extern struct dentry *snd_soc_debugfs_root;
1160#endif
1161
1162extern const struct dev_pm_ops snd_soc_pm_ops;
1163
1164#endif
1165
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