include/sound/soc.h

   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/of.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/types.h>
  19 #include <linux/notifier.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/kernel.h>
  23 #include <linux/regmap.h>
  24 #include <linux/log2.h>
  25 #include <sound/core.h>
  26 #include <sound/pcm.h>
  27 #include <sound/compress_driver.h>
  28 #include <sound/control.h>
  29 #include <sound/ac97_codec.h>
  30
  31 /*
  32  * Convenience kcontrol builders
  33  */
  34 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert, xautodisable) \
  35         ((unsigned long)&(struct soc_mixer_control) \
  36         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
  37         .rshift = shift_right, .max = xmax, .platform_max = xmax, \
  38         .invert = xinvert, .autodisable = xautodisable})
  39 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \
  40         SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable)
  41 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
  42         ((unsigned long)&(struct soc_mixer_control) \
  43         {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
  44 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
  45         ((unsigned long)&(struct soc_mixer_control) \
  46         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  47         .max = xmax, .platform_max = xmax, .invert = xinvert})
  48 #define SOC_DOUBLE_R_S_VALUE(xlreg, xrreg, xshift, xmin, xmax, xsign_bit, xinvert) \
  49         ((unsigned long)&(struct soc_mixer_control) \
  50         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  51         .max = xmax, .min = xmin, .platform_max = xmax, .sign_bit = xsign_bit, \
  52         .invert = xinvert})
  53 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \
  54         ((unsigned long)&(struct soc_mixer_control) \
  55         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  56         .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert})
  57 #define SOC_SINGLE(xname, reg, shift, max, invert) \
  58 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  59         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  60         .put = snd_soc_put_volsw, \
  61         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
  62 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
  63 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  64         .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
  65         .put = snd_soc_put_volsw_range, \
  66         .private_value = (unsigned long)&(struct soc_mixer_control) \
  67                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
  68                  .rshift = xshift,  .min = xmin, .max = xmax, \
  69                  .platform_max = xmax, .invert = xinvert} }
  70 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  71 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  72         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  73                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  74         .tlv.p = (tlv_array), \
  75         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  76         .put = snd_soc_put_volsw, \
  77         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
  78 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
  79 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  80         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  81         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  82         .tlv.p  = (tlv_array),\
  83         .info = snd_soc_info_volsw, \
  84         .get = snd_soc_get_volsw_sx,\
  85         .put = snd_soc_put_volsw_sx, \
  86         .private_value = (unsigned long)&(struct soc_mixer_control) \
  87                 {.reg = xreg, .rreg = xreg, \
  88                 .shift = xshift, .rshift = xshift, \
  89                 .max = xmax, .min = xmin} }
  90 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
  91 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  92         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  93                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  94         .tlv.p = (tlv_array), \
  95         .info = snd_soc_info_volsw_range, \
  96         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
  97         .private_value = (unsigned long)&(struct soc_mixer_control) \
  98                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
  99                  .rshift = xshift, .min = xmin, .max = xmax, \
 100                  .platform_max = xmax, .invert = xinvert} }
 101 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
 102 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 103         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 104         .put = snd_soc_put_volsw, \
 105         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 106                                           max, invert, 0) }
 107 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
 108 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 109         .info = snd_soc_info_volsw, \
 110         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 111         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 112                                             xmax, xinvert) }
 113 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
 114                            xmax, xinvert)               \
 115 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 116         .info = snd_soc_info_volsw_range, \
 117         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 118         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 119                                             xshift, xmin, xmax, xinvert) }
 120 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \
 121 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 122         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 123                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 124         .tlv.p = (tlv_array), \
 125         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 126         .put = snd_soc_put_volsw, \
 127         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 128                                           max, invert, 0) }
 129 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, 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, \
 135         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 136         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 137                                             xmax, xinvert) }
 138 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
 139                                xmax, xinvert, tlv_array)                \
 140 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 141         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 142                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 143         .tlv.p = (tlv_array), \
 144         .info = snd_soc_info_volsw_range, \
 145         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 146         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 147                                             xshift, xmin, xmax, xinvert) }
 148 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
 149 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 150         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 151         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 152         .tlv.p  = (tlv_array), \
 153         .info = snd_soc_info_volsw, \
 154         .get = snd_soc_get_volsw_sx, \
 155         .put = snd_soc_put_volsw_sx, \
 156         .private_value = (unsigned long)&(struct soc_mixer_control) \
 157                 {.reg = xreg, .rreg = xrreg, \
 158                 .shift = xshift, .rshift = xshift, \
 159                 .max = xmax, .min = xmin} }
 160 #define SOC_DOUBLE_R_S_TLV(xname, reg_left, reg_right, xshift, xmin, xmax, xsign_bit, xinvert, tlv_array) \
 161 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 162         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 163                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 164         .tlv.p = (tlv_array), \
 165         .info = snd_soc_info_volsw, \
 166         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 167         .private_value = SOC_DOUBLE_R_S_VALUE(reg_left, reg_right, xshift, \
 168                                             xmin, xmax, xsign_bit, xinvert) }
 169 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
 170 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 171         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 172                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 173         .tlv.p  = (tlv_array), \
 174         .info   = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
 175         .put    = snd_soc_put_volsw_s8, \
 176         .private_value = (unsigned long)&(struct soc_mixer_control) \
 177                 {.reg = xreg, .min = xmin, .max = xmax, \
 178                  .platform_max = xmax} }
 179 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xitems, xtexts) \
 180 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 181         .items = xitems, .texts = xtexts, \
 182         .mask = xitems ? roundup_pow_of_two(xitems) - 1 : 0}
 183 #define SOC_ENUM_SINGLE(xreg, xshift, xitems, xtexts) \
 184         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xitems, xtexts)
 185 #define SOC_ENUM_SINGLE_EXT(xitems, xtexts) \
 186 {       .items = xitems, .texts = xtexts }
 187 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xitems, xtexts, xvalues) \
 188 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 189         .mask = xmask, .items = xitems, .texts = xtexts, .values = xvalues}
 190 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xnitmes, xtexts, xvalues) \
 191         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xnitmes, xtexts, xvalues)
 192 #define SOC_ENUM_SINGLE_VIRT(xitems, xtexts) \
 193         SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, xitems, xtexts)
 194 #define SOC_ENUM(xname, xenum) \
 195 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 196         .info = snd_soc_info_enum_double, \
 197         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 198         .private_value = (unsigned long)&xenum }
 199 #define SOC_VALUE_ENUM(xname, xenum) \
 200         SOC_ENUM(xname, xenum)
 201 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 202          xhandler_get, xhandler_put) \
 203 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 204         .info = snd_soc_info_volsw, \
 205         .get = xhandler_get, .put = xhandler_put, \
 206         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
 207 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
 208          xhandler_get, xhandler_put) \
 209 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 210         .info = snd_soc_info_volsw, \
 211         .get = xhandler_get, .put = xhandler_put, \
 212         .private_value = \
 213                 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert, 0) }
 214 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 215          xhandler_get, xhandler_put, tlv_array) \
 216 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 217         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 218                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 219         .tlv.p = (tlv_array), \
 220         .info = snd_soc_info_volsw, \
 221         .get = xhandler_get, .put = xhandler_put, \
 222         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
 223 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 224          xhandler_get, xhandler_put, tlv_array) \
 225 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 226         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 227                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 228         .tlv.p = (tlv_array), \
 229         .info = snd_soc_info_volsw, \
 230         .get = xhandler_get, .put = xhandler_put, \
 231         .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
 232                                           xmax, xinvert, 0) }
 233 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 234          xhandler_get, xhandler_put, tlv_array) \
 235 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 236         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 237                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 238         .tlv.p = (tlv_array), \
 239         .info = snd_soc_info_volsw, \
 240         .get = xhandler_get, .put = xhandler_put, \
 241         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 242                                             xmax, xinvert) }
 243 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 244 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 245         .info = snd_soc_info_bool_ext, \
 246         .get = xhandler_get, .put = xhandler_put, \
 247         .private_value = xdata }
 248 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 249 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 250         .info = snd_soc_info_enum_double, \
 251         .get = xhandler_get, .put = xhandler_put, \
 252         .private_value = (unsigned long)&xenum }
 253
 254 #define SND_SOC_BYTES(xname, xbase, xregs)                    \
 255 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 256         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 257         .put = snd_soc_bytes_put, .private_value =            \
 258                 ((unsigned long)&(struct soc_bytes)           \
 259                 {.base = xbase, .num_regs = xregs }) }
 260
 261 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
 262 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 263         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 264         .put = snd_soc_bytes_put, .private_value =            \
 265                 ((unsigned long)&(struct soc_bytes)           \
 266                 {.base = xbase, .num_regs = xregs,            \
 267                  .mask = xmask }) }
 268
 269 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
 270                 xmin, xmax, xinvert) \
 271 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 272         .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
 273         .put = snd_soc_put_xr_sx, \
 274         .private_value = (unsigned long)&(struct soc_mreg_control) \
 275                 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
 276                 .invert = xinvert, .min = xmin, .max = xmax} }
 277
 278 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
 279         SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
 280                 snd_soc_get_strobe, snd_soc_put_strobe)
 281
 282 /*
 283  * Simplified versions of above macros, declaring a struct and calculating
 284  * ARRAY_SIZE internally
 285  */
 286 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 287         const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 288                                                 ARRAY_SIZE(xtexts), xtexts)
 289 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 290         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 291 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 292         const struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 293 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 294         const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 295                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
 296 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 297         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 298 #define SOC_ENUM_SINGLE_VIRT_DECL(name, xtexts) \
 299         const struct soc_enum name = SOC_ENUM_SINGLE_VIRT(ARRAY_SIZE(xtexts), xtexts)
 300
 301 /*
 302  * Component probe and remove ordering levels for components with runtime
 303  * dependencies.
 304  */
 305 #define SND_SOC_COMP_ORDER_FIRST                -2
 306 #define SND_SOC_COMP_ORDER_EARLY                -1
 307 #define SND_SOC_COMP_ORDER_NORMAL               0
 308 #define SND_SOC_COMP_ORDER_LATE         1
 309 #define SND_SOC_COMP_ORDER_LAST         2
 310
 311 /*
 312  * Bias levels
 313  *
 314  * @ON:      Bias is fully on for audio playback and capture operations.
 315  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 316  *           stream start and stop operations.
 317  * @STANDBY: Low power standby state when no playback/capture operations are
 318  *           in progress. NOTE: The transition time between STANDBY and ON
 319  *           should be as fast as possible and no longer than 10ms.
 320  * @OFF:     Power Off. No restrictions on transition times.
 321  */
 322 enum snd_soc_bias_level {
 323         SND_SOC_BIAS_OFF = 0,
 324         SND_SOC_BIAS_STANDBY = 1,
 325         SND_SOC_BIAS_PREPARE = 2,
 326         SND_SOC_BIAS_ON = 3,
 327 };
 328
 329 struct device_node;
 330 struct snd_jack;
 331 struct snd_soc_card;
 332 struct snd_soc_pcm_stream;
 333 struct snd_soc_ops;
 334 struct snd_soc_pcm_runtime;
 335 struct snd_soc_dai;
 336 struct snd_soc_dai_driver;
 337 struct snd_soc_platform;
 338 struct snd_soc_dai_link;
 339 struct snd_soc_platform_driver;
 340 struct snd_soc_codec;
 341 struct snd_soc_codec_driver;
 342 struct snd_soc_component;
 343 struct snd_soc_component_driver;
 344 struct soc_enum;
 345 struct snd_soc_jack;
 346 struct snd_soc_jack_zone;
 347 struct snd_soc_jack_pin;
 348 #include <sound/soc-dapm.h>
 349 #include <sound/soc-dpcm.h>
 350
 351 struct snd_soc_jack_gpio;
 352
 353 typedef int (*hw_write_t)(void *,const char* ,int);
 354
 355 extern struct snd_ac97_bus_ops *soc_ac97_ops;
 356
 357 enum snd_soc_pcm_subclass {
 358         SND_SOC_PCM_CLASS_PCM   = 0,
 359         SND_SOC_PCM_CLASS_BE    = 1,
 360 };
 361
 362 enum snd_soc_card_subclass {
 363         SND_SOC_CARD_CLASS_INIT         = 0,
 364         SND_SOC_CARD_CLASS_RUNTIME      = 1,
 365 };
 366
 367 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 368                              int source, unsigned int freq, int dir);
 369 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 370                           unsigned int freq_in, unsigned int freq_out);
 371
 372 int snd_soc_register_card(struct snd_soc_card *card);
 373 int snd_soc_unregister_card(struct snd_soc_card *card);
 374 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card);
 375 int snd_soc_suspend(struct device *dev);
 376 int snd_soc_resume(struct device *dev);
 377 int snd_soc_poweroff(struct device *dev);
 378 int snd_soc_register_platform(struct device *dev,
 379                 const struct snd_soc_platform_driver *platform_drv);
 380 void snd_soc_unregister_platform(struct device *dev);
 381 int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
 382                 const struct snd_soc_platform_driver *platform_drv);
 383 void snd_soc_remove_platform(struct snd_soc_platform *platform);
 384 struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev);
 385 int snd_soc_register_codec(struct device *dev,
 386                 const struct snd_soc_codec_driver *codec_drv,
 387                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 388 void snd_soc_unregister_codec(struct device *dev);
 389 int snd_soc_register_component(struct device *dev,
 390                          const struct snd_soc_component_driver *cmpnt_drv,
 391                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 392 int devm_snd_soc_register_component(struct device *dev,
 393                          const struct snd_soc_component_driver *cmpnt_drv,
 394                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 395 void snd_soc_unregister_component(struct device *dev);
 396 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 397                                     unsigned int reg);
 398 int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
 399                                     unsigned int reg);
 400 int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
 401                                     unsigned int reg);
 402 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 403                                struct regmap *regmap);
 404 int snd_soc_cache_sync(struct snd_soc_codec *codec);
 405 int snd_soc_cache_init(struct snd_soc_codec *codec);
 406 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 407 int snd_soc_cache_write(struct snd_soc_codec *codec,
 408                         unsigned int reg, unsigned int value);
 409 int snd_soc_cache_read(struct snd_soc_codec *codec,
 410                        unsigned int reg, unsigned int *value);
 411 int snd_soc_platform_read(struct snd_soc_platform *platform,
 412                                         unsigned int reg);
 413 int snd_soc_platform_write(struct snd_soc_platform *platform,
 414                                         unsigned int reg, unsigned int val);
 415 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 416 int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
 417
 418 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 419                 const char *dai_link, int stream);
 420 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 421                 const char *dai_link);
 422
 423 bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd);
 424 void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream);
 425 void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream);
 426
 427 /* Utility functions to get clock rates from various things */
 428 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 429 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 430 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 431 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 432
 433 /* set runtime hw params */
 434 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 435         const struct snd_pcm_hardware *hw);
 436
 437 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 438                 int cmd, struct snd_soc_platform *platform);
 439
 440 /* Jack reporting */
 441 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 442                      struct snd_soc_jack *jack);
 443 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 444 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 445                           struct snd_soc_jack_pin *pins);
 446 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 447                                     struct notifier_block *nb);
 448 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 449                                       struct notifier_block *nb);
 450 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 451                           struct snd_soc_jack_zone *zones);
 452 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 453 #ifdef CONFIG_GPIOLIB
 454 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 455                         struct snd_soc_jack_gpio *gpios);
 456 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 457                         struct snd_soc_jack_gpio *gpios);
 458 #else
 459 static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 460                                          struct snd_soc_jack_gpio *gpios)
 461 {
 462         return 0;
 463 }
 464
 465 static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 466                                            struct snd_soc_jack_gpio *gpios)
 467 {
 468 }
 469 #endif
 470
 471 /* codec register bit access */
 472 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
 473                                 unsigned int mask, unsigned int value);
 474 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 475                                unsigned short reg, unsigned int mask,
 476                                unsigned int value);
 477 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
 478                                 unsigned int mask, unsigned int value);
 479
 480 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 481         struct snd_ac97_bus_ops *ops, int num);
 482 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
 483
 484 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
 485 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
 486                 struct platform_device *pdev);
 487
 488 /*
 489  *Controls
 490  */
 491 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 492                                   void *data, const char *long_name,
 493                                   const char *prefix);
 494 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
 495                                                const char *name);
 496 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 497         const struct snd_kcontrol_new *controls, int num_controls);
 498 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 499         const struct snd_kcontrol_new *controls, int num_controls);
 500 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 501         const struct snd_kcontrol_new *controls, int num_controls);
 502 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 503         const struct snd_kcontrol_new *controls, int num_controls);
 504 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 505         struct snd_ctl_elem_info *uinfo);
 506 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 507         struct snd_ctl_elem_value *ucontrol);
 508 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 509         struct snd_ctl_elem_value *ucontrol);
 510 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 511         struct snd_ctl_elem_info *uinfo);
 512 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 513 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 514         struct snd_ctl_elem_value *ucontrol);
 515 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 516         struct snd_ctl_elem_value *ucontrol);
 517 #define snd_soc_get_volsw_2r snd_soc_get_volsw
 518 #define snd_soc_put_volsw_2r snd_soc_put_volsw
 519 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 520         struct snd_ctl_elem_value *ucontrol);
 521 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 522         struct snd_ctl_elem_value *ucontrol);
 523 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
 524         struct snd_ctl_elem_info *uinfo);
 525 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
 526         struct snd_ctl_elem_value *ucontrol);
 527 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
 528         struct snd_ctl_elem_value *ucontrol);
 529 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
 530         struct snd_ctl_elem_info *uinfo);
 531 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 532         struct snd_ctl_elem_value *ucontrol);
 533 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
 534         struct snd_ctl_elem_value *ucontrol);
 535 int snd_soc_limit_volume(struct snd_soc_codec *codec,
 536         const char *name, int max);
 537 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
 538                        struct snd_ctl_elem_info *uinfo);
 539 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 540                       struct snd_ctl_elem_value *ucontrol);
 541 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 542                       struct snd_ctl_elem_value *ucontrol);
 543 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
 544         struct snd_ctl_elem_info *uinfo);
 545 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
 546         struct snd_ctl_elem_value *ucontrol);
 547 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 548         struct snd_ctl_elem_value *ucontrol);
 549 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 550         struct snd_ctl_elem_value *ucontrol);
 551 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 552         struct snd_ctl_elem_value *ucontrol);
 553
 554 /**
 555  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 556  *
 557  * @pin:    name of the pin to update
 558  * @mask:   bits to check for in reported jack status
 559  * @invert: if non-zero then pin is enabled when status is not reported
 560  */
 561 struct snd_soc_jack_pin {
 562         struct list_head list;
 563         const char *pin;
 564         int mask;
 565         bool invert;
 566 };
 567
 568 /**
 569  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 570  *
 571  * @min_mv: start voltage in mv
 572  * @max_mv: end voltage in mv
 573  * @jack_type: type of jack that is expected for this voltage
 574  * @debounce_time: debounce_time for jack, codec driver should wait for this
 575  *              duration before reading the adc for voltages
 576  * @:list: list container
 577  */
 578 struct snd_soc_jack_zone {
 579         unsigned int min_mv;
 580         unsigned int max_mv;
 581         unsigned int jack_type;
 582         unsigned int debounce_time;
 583         struct list_head list;
 584 };
 585
 586 /**
 587  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 588  *
 589  * @gpio:         gpio number
 590  * @name:         gpio name
 591  * @report:       value to report when jack detected
 592  * @invert:       report presence in low state
 593  * @debouce_time: debouce time in ms
 594  * @wake:         enable as wake source
 595  * @jack_status_check: callback function which overrides the detection
 596  *                     to provide more complex checks (eg, reading an
 597  *                     ADC).
 598  */
 599 struct snd_soc_jack_gpio {
 600         unsigned int gpio;
 601         const char *name;
 602         int report;
 603         int invert;
 604         int debounce_time;
 605         bool wake;
 606
 607         struct snd_soc_jack *jack;
 608         struct delayed_work work;
 609
 610         void *data;
 611         int (*jack_status_check)(void *data);
 612 };
 613
 614 struct snd_soc_jack {
 615         struct mutex mutex;
 616         struct snd_jack *jack;
 617         struct snd_soc_codec *codec;
 618         struct list_head pins;
 619         int status;
 620         struct blocking_notifier_head notifier;
 621         struct list_head jack_zones;
 622 };
 623
 624 /* SoC PCM stream information */
 625 struct snd_soc_pcm_stream {
 626         const char *stream_name;
 627         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 628         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 629         unsigned int rate_min;          /* min rate */
 630         unsigned int rate_max;          /* max rate */
 631         unsigned int channels_min;      /* min channels */
 632         unsigned int channels_max;      /* max channels */
 633         unsigned int sig_bits;          /* number of bits of content */
 634 };
 635
 636 /* SoC audio ops */
 637 struct snd_soc_ops {
 638         int (*startup)(struct snd_pcm_substream *);
 639         void (*shutdown)(struct snd_pcm_substream *);
 640         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 641         int (*hw_free)(struct snd_pcm_substream *);
 642         int (*prepare)(struct snd_pcm_substream *);
 643         int (*trigger)(struct snd_pcm_substream *, int);
 644 };
 645
 646 struct snd_soc_compr_ops {
 647         int (*startup)(struct snd_compr_stream *);
 648         void (*shutdown)(struct snd_compr_stream *);
 649         int (*set_params)(struct snd_compr_stream *);
 650         int (*trigger)(struct snd_compr_stream *);
 651 };
 652
 653 /* component interface */
 654 struct snd_soc_component_driver {
 655         const char *name;
 656
 657         /* DT */
 658         int (*of_xlate_dai_name)(struct snd_soc_component *component,
 659                                  struct of_phandle_args *args,
 660                                  const char **dai_name);
 661 };
 662
 663 struct snd_soc_component {
 664         const char *name;
 665         int id;
 666         struct device *dev;
 667
 668         unsigned int active;
 669
 670         unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 671
 672         struct list_head list;
 673
 674         struct snd_soc_dai_driver *dai_drv;
 675         int num_dai;
 676
 677         const struct snd_soc_component_driver *driver;
 678
 679         struct list_head dai_list;
 680 };
 681
 682 /* SoC Audio Codec device */
 683 struct snd_soc_codec {
 684         const char *name;
 685         const char *name_prefix;
 686         int id;
 687         struct device *dev;
 688         const struct snd_soc_codec_driver *driver;
 689
 690         struct mutex mutex;
 691         struct snd_soc_card *card;
 692         struct list_head list;
 693         struct list_head card_list;
 694         int num_dai;
 695         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 696         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 697         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 698
 699         /* runtime */
 700         struct snd_ac97 *ac97;  /* for ad-hoc ac97 devices */
 701         unsigned int cache_bypass:1; /* Suppress access to the cache */
 702         unsigned int suspended:1; /* Codec is in suspend PM state */
 703         unsigned int probed:1; /* Codec has been probed */
 704         unsigned int ac97_registered:1; /* Codec has been AC97 registered */
 705         unsigned int ac97_created:1; /* Codec has been created by SoC */
 706         unsigned int cache_init:1; /* codec cache has been initialized */
 707         unsigned int using_regmap:1; /* using regmap access */
 708         u32 cache_only;  /* Suppress writes to hardware */
 709         u32 cache_sync; /* Cache needs to be synced to hardware */
 710
 711         /* codec IO */
 712         void *control_data; /* codec control (i2c/3wire) data */
 713         hw_write_t hw_write;
 714         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 715         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 716         void *reg_cache;
 717         struct mutex cache_rw_mutex;
 718         int val_bytes;
 719
 720         /* component */
 721         struct snd_soc_component component;
 722
 723         /* dapm */
 724         struct snd_soc_dapm_context dapm;
 725
 726 #ifdef CONFIG_DEBUG_FS
 727         struct dentry *debugfs_codec_root;
 728         struct dentry *debugfs_reg;
 729 #endif
 730 };
 731
 732 /* codec driver */
 733 struct snd_soc_codec_driver {
 734
 735         /* driver ops */
 736         int (*probe)(struct snd_soc_codec *);
 737         int (*remove)(struct snd_soc_codec *);
 738         int (*suspend)(struct snd_soc_codec *);
 739         int (*resume)(struct snd_soc_codec *);
 740         struct snd_soc_component_driver component_driver;
 741
 742         /* Default control and setup, added after probe() is run */
 743         const struct snd_kcontrol_new *controls;
 744         int num_controls;
 745         const struct snd_soc_dapm_widget *dapm_widgets;
 746         int num_dapm_widgets;
 747         const struct snd_soc_dapm_route *dapm_routes;
 748         int num_dapm_routes;
 749
 750         /* codec wide operations */
 751         int (*set_sysclk)(struct snd_soc_codec *codec,
 752                           int clk_id, int source, unsigned int freq, int dir);
 753         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 754                 unsigned int freq_in, unsigned int freq_out);
 755
 756         /* codec IO */
 757         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 758         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 759         int (*display_register)(struct snd_soc_codec *, char *,
 760                                 size_t, unsigned int);
 761         int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 762         int (*readable_register)(struct snd_soc_codec *, unsigned int);
 763         int (*writable_register)(struct snd_soc_codec *, unsigned int);
 764         unsigned int reg_cache_size;
 765         short reg_cache_step;
 766         short reg_word_size;
 767         const void *reg_cache_default;
 768
 769         /* codec bias level */
 770         int (*set_bias_level)(struct snd_soc_codec *,
 771                               enum snd_soc_bias_level level);
 772         bool idle_bias_off;
 773
 774         void (*seq_notifier)(struct snd_soc_dapm_context *,
 775                              enum snd_soc_dapm_type, int);
 776
 777         /* codec stream completion event */
 778         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 779
 780         bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 781
 782         /* probe ordering - for components with runtime dependencies */
 783         int probe_order;
 784         int remove_order;
 785 };
 786
 787 /* SoC platform interface */
 788 struct snd_soc_platform_driver {
 789
 790         int (*probe)(struct snd_soc_platform *);
 791         int (*remove)(struct snd_soc_platform *);
 792         int (*suspend)(struct snd_soc_dai *dai);
 793         int (*resume)(struct snd_soc_dai *dai);
 794
 795         /* pcm creation and destruction */
 796         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 797         void (*pcm_free)(struct snd_pcm *);
 798
 799         /* Default control and setup, added after probe() is run */
 800         const struct snd_kcontrol_new *controls;
 801         int num_controls;
 802         const struct snd_soc_dapm_widget *dapm_widgets;
 803         int num_dapm_widgets;
 804         const struct snd_soc_dapm_route *dapm_routes;
 805         int num_dapm_routes;
 806
 807         /*
 808          * For platform caused delay reporting.
 809          * Optional.
 810          */
 811         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 812                 struct snd_soc_dai *);
 813
 814         /* platform stream pcm ops */
 815         const struct snd_pcm_ops *ops;
 816
 817         /* platform stream compress ops */
 818         const struct snd_compr_ops *compr_ops;
 819
 820         /* platform stream completion event */
 821         int (*stream_event)(struct snd_soc_dapm_context *dapm, int event);
 822
 823         /* probe ordering - for components with runtime dependencies */
 824         int probe_order;
 825         int remove_order;
 826
 827         /* platform IO - used for platform DAPM */
 828         unsigned int (*read)(struct snd_soc_platform *, unsigned int);
 829         int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
 830         int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 831 };
 832
 833 struct snd_soc_platform {
 834         const char *name;
 835         int id;
 836         struct device *dev;
 837         const struct snd_soc_platform_driver *driver;
 838         struct mutex mutex;
 839
 840         unsigned int suspended:1; /* platform is suspended */
 841         unsigned int probed:1;
 842
 843         struct snd_soc_card *card;
 844         struct list_head list;
 845         struct list_head card_list;
 846
 847         struct snd_soc_dapm_context dapm;
 848
 849 #ifdef CONFIG_DEBUG_FS
 850         struct dentry *debugfs_platform_root;
 851 #endif
 852 };
 853
 854 struct snd_soc_dai_link {
 855         /* config - must be set by machine driver */
 856         const char *name;                       /* Codec name */
 857         const char *stream_name;                /* Stream name */
 858         /*
 859          * You MAY specify the link's CPU-side device, either by device name,
 860          * or by DT/OF node, but not both. If this information is omitted,
 861          * the CPU-side DAI is matched using .cpu_dai_name only, which hence
 862          * must be globally unique. These fields are currently typically used
 863          * only for codec to codec links, or systems using device tree.
 864          */
 865         const char *cpu_name;
 866         const struct device_node *cpu_of_node;
 867         /*
 868          * You MAY specify the DAI name of the CPU DAI. If this information is
 869          * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
 870          * only, which only works well when that device exposes a single DAI.
 871          */
 872         const char *cpu_dai_name;
 873         /*
 874          * You MUST specify the link's codec, either by device name, or by
 875          * DT/OF node, but not both.
 876          */
 877         const char *codec_name;
 878         const struct device_node *codec_of_node;
 879         /* You MUST specify the DAI name within the codec */
 880         const char *codec_dai_name;
 881         /*
 882          * You MAY specify the link's platform/PCM/DMA driver, either by
 883          * device name, or by DT/OF node, but not both. Some forms of link
 884          * do not need a platform.
 885          */
 886         const char *platform_name;
 887         const struct device_node *platform_of_node;
 888         int be_id;      /* optional ID for machine driver BE identification */
 889
 890         const struct snd_soc_pcm_stream *params;
 891
 892         unsigned int dai_fmt;           /* format to set on init */
 893
 894         enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
 895
 896         /* Keep DAI active over suspend */
 897         unsigned int ignore_suspend:1;
 898
 899         /* Symmetry requirements */
 900         unsigned int symmetric_rates:1;
 901         unsigned int symmetric_channels:1;
 902         unsigned int symmetric_samplebits:1;
 903
 904         /* Do not create a PCM for this DAI link (Backend link) */
 905         unsigned int no_pcm:1;
 906
 907         /* This DAI link can route to other DAI links at runtime (Frontend)*/
 908         unsigned int dynamic:1;
 909
 910         /* DPCM capture and Playback support */
 911         unsigned int dpcm_capture:1;
 912         unsigned int dpcm_playback:1;
 913
 914         /* pmdown_time is ignored at stop */
 915         unsigned int ignore_pmdown_time:1;
 916
 917         /* codec/machine specific init - e.g. add machine controls */
 918         int (*init)(struct snd_soc_pcm_runtime *rtd);
 919
 920         /* optional hw_params re-writing for BE and FE sync */
 921         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 922                         struct snd_pcm_hw_params *params);
 923
 924         /* machine stream operations */
 925         const struct snd_soc_ops *ops;
 926         const struct snd_soc_compr_ops *compr_ops;
 927
 928         /* For unidirectional dai links */
 929         bool playback_only;
 930         bool capture_only;
 931 };
 932
 933 struct snd_soc_codec_conf {
 934         const char *dev_name;
 935
 936         /*
 937          * optional map of kcontrol, widget and path name prefixes that are
 938          * associated per device
 939          */
 940         const char *name_prefix;
 941 };
 942
 943 struct snd_soc_aux_dev {
 944         const char *name;               /* Codec name */
 945         const char *codec_name;         /* for multi-codec */
 946
 947         /* codec/machine specific init - e.g. add machine controls */
 948         int (*init)(struct snd_soc_dapm_context *dapm);
 949 };
 950
 951 /* SoC card */
 952 struct snd_soc_card {
 953         const char *name;
 954         const char *long_name;
 955         const char *driver_name;
 956         struct device *dev;
 957         struct snd_card *snd_card;
 958         struct module *owner;
 959
 960         struct list_head list;
 961         struct mutex mutex;
 962         struct mutex dapm_mutex;
 963
 964         bool instantiated;
 965
 966         int (*probe)(struct snd_soc_card *card);
 967         int (*late_probe)(struct snd_soc_card *card);
 968         int (*remove)(struct snd_soc_card *card);
 969
 970         /* the pre and post PM functions are used to do any PM work before and
 971          * after the codec and DAI's do any PM work. */
 972         int (*suspend_pre)(struct snd_soc_card *card);
 973         int (*suspend_post)(struct snd_soc_card *card);
 974         int (*resume_pre)(struct snd_soc_card *card);
 975         int (*resume_post)(struct snd_soc_card *card);
 976
 977         /* callbacks */
 978         int (*set_bias_level)(struct snd_soc_card *,
 979                               struct snd_soc_dapm_context *dapm,
 980                               enum snd_soc_bias_level level);
 981         int (*set_bias_level_post)(struct snd_soc_card *,
 982                                    struct snd_soc_dapm_context *dapm,
 983                                    enum snd_soc_bias_level level);
 984
 985         long pmdown_time;
 986
 987         /* CPU <--> Codec DAI links  */
 988         struct snd_soc_dai_link *dai_link;
 989         int num_links;
 990         struct snd_soc_pcm_runtime *rtd;
 991         int num_rtd;
 992
 993         /* optional codec specific configuration */
 994         struct snd_soc_codec_conf *codec_conf;
 995         int num_configs;
 996
 997         /*
 998          * optional auxiliary devices such as amplifiers or codecs with DAI
 999          * link unused
1000          */
1001         struct snd_soc_aux_dev *aux_dev;
1002         int num_aux_devs;
1003         struct snd_soc_pcm_runtime *rtd_aux;
1004         int num_aux_rtd;
1005
1006         const struct snd_kcontrol_new *controls;
1007         int num_controls;
1008
1009         /*
1010          * Card-specific routes and widgets.
1011          */
1012         const struct snd_soc_dapm_widget *dapm_widgets;
1013         int num_dapm_widgets;
1014         const struct snd_soc_dapm_route *dapm_routes;
1015         int num_dapm_routes;
1016         bool fully_routed;
1017
1018         struct work_struct deferred_resume_work;
1019
1020         /* lists of probed devices belonging to this card */
1021         struct list_head codec_dev_list;
1022         struct list_head platform_dev_list;
1023         struct list_head dai_dev_list;
1024
1025         struct list_head widgets;
1026         struct list_head paths;
1027         struct list_head dapm_list;
1028         struct list_head dapm_dirty;
1029
1030         /* Generic DAPM context for the card */
1031         struct snd_soc_dapm_context dapm;
1032         struct snd_soc_dapm_stats dapm_stats;
1033         struct snd_soc_dapm_update *update;
1034
1035 #ifdef CONFIG_DEBUG_FS
1036         struct dentry *debugfs_card_root;
1037         struct dentry *debugfs_pop_time;
1038 #endif
1039         u32 pop_time;
1040
1041         void *drvdata;
1042 };
1043
1044 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1045 struct snd_soc_pcm_runtime {
1046         struct device *dev;
1047         struct snd_soc_card *card;
1048         struct snd_soc_dai_link *dai_link;
1049         struct mutex pcm_mutex;
1050         enum snd_soc_pcm_subclass pcm_subclass;
1051         struct snd_pcm_ops ops;
1052
1053         unsigned int dev_registered:1;
1054
1055         /* Dynamic PCM BE runtime data */
1056         struct snd_soc_dpcm_runtime dpcm[2];
1057         int fe_compr;
1058
1059         long pmdown_time;
1060         unsigned char pop_wait:1;
1061
1062         /* runtime devices */
1063         struct snd_pcm *pcm;
1064         struct snd_compr *compr;
1065         struct snd_soc_codec *codec;
1066         struct snd_soc_platform *platform;
1067         struct snd_soc_dai *codec_dai;
1068         struct snd_soc_dai *cpu_dai;
1069
1070         struct delayed_work delayed_work;
1071 #ifdef CONFIG_DEBUG_FS
1072         struct dentry *debugfs_dpcm_root;
1073         struct dentry *debugfs_dpcm_state;
1074 #endif
1075 };
1076
1077 /* mixer control */
1078 struct soc_mixer_control {
1079         int min, max, platform_max;
1080         int reg, rreg;
1081         unsigned int shift, rshift;
1082         unsigned int sign_bit;
1083         unsigned int invert:1;
1084         unsigned int autodisable:1;
1085 };
1086
1087 struct soc_bytes {
1088         int base;
1089         int num_regs;
1090         u32 mask;
1091 };
1092
1093 /* multi register control */
1094 struct soc_mreg_control {
1095         long min, max;
1096         unsigned int regbase, regcount, nbits, invert;
1097 };
1098
1099 /* enumerated kcontrol */
1100 struct soc_enum {
1101         int reg;
1102         unsigned char shift_l;
1103         unsigned char shift_r;
1104         unsigned int items;
1105         unsigned int mask;
1106         const char * const *texts;
1107         const unsigned int *values;
1108 };
1109
1110 /**
1111  * snd_soc_component_to_codec() - Casts a component to the CODEC it is embedded in
1112  * @component: The component to cast to a CODEC
1113  *
1114  * This function must only be used on components that are known to be CODECs.
1115  * Otherwise the behavior is undefined.
1116  */
1117 static inline struct snd_soc_codec *snd_soc_component_to_codec(
1118         struct snd_soc_component *component)
1119 {
1120         return container_of(component, struct snd_soc_codec, component);
1121 }
1122
1123 /* codec IO */
1124 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1125 unsigned int snd_soc_write(struct snd_soc_codec *codec,
1126                            unsigned int reg, unsigned int val);
1127
1128 /* device driver data */
1129
1130 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1131                 void *data)
1132 {
1133         card->drvdata = data;
1134 }
1135
1136 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1137 {
1138         return card->drvdata;
1139 }
1140
1141 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1142                 void *data)
1143 {
1144         dev_set_drvdata(codec->dev, data);
1145 }
1146
1147 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1148 {
1149         return dev_get_drvdata(codec->dev);
1150 }
1151
1152 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1153                 void *data)
1154 {
1155         dev_set_drvdata(platform->dev, data);
1156 }
1157
1158 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1159 {
1160         return dev_get_drvdata(platform->dev);
1161 }
1162
1163 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1164                 void *data)
1165 {
1166         dev_set_drvdata(rtd->dev, data);
1167 }
1168
1169 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1170 {
1171         return dev_get_drvdata(rtd->dev);
1172 }
1173
1174 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1175 {
1176         INIT_LIST_HEAD(&card->dai_dev_list);
1177         INIT_LIST_HEAD(&card->codec_dev_list);
1178         INIT_LIST_HEAD(&card->platform_dev_list);
1179         INIT_LIST_HEAD(&card->widgets);
1180         INIT_LIST_HEAD(&card->paths);
1181         INIT_LIST_HEAD(&card->dapm_list);
1182 }
1183
1184 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1185 {
1186         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1187                 return 0;
1188         /*
1189          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1190          * mc->reg != mc->rreg means that the control is
1191          * stereo (bits in one register or in two registers)
1192          */
1193         return 1;
1194 }
1195
1196 static inline unsigned int snd_soc_enum_val_to_item(struct soc_enum *e,
1197         unsigned int val)
1198 {
1199         unsigned int i;
1200
1201         if (!e->values)
1202                 return val;
1203
1204         for (i = 0; i < e->items; i++)
1205                 if (val == e->values[i])
1206                         return i;
1207
1208         return 0;
1209 }
1210
1211 static inline unsigned int snd_soc_enum_item_to_val(struct soc_enum *e,
1212         unsigned int item)
1213 {
1214         if (!e->values)
1215                 return item;
1216
1217         return e->values[item];
1218 }
1219
1220 static inline bool snd_soc_component_is_active(
1221         struct snd_soc_component *component)
1222 {
1223         return component->active != 0;
1224 }
1225
1226 static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec)
1227 {
1228         return snd_soc_component_is_active(&codec->component);
1229 }
1230
1231 int snd_soc_util_init(void);
1232 void snd_soc_util_exit(void);
1233
1234 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1235                                const char *propname);
1236 int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
1237                                           const char *propname);
1238 int snd_soc_of_parse_tdm_slot(struct device_node *np,
1239                               unsigned int *slots,
1240                               unsigned int *slot_width);
1241 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1242                                    const char *propname);
1243 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
1244                                      const char *prefix);
1245 int snd_soc_of_get_dai_name(struct device_node *of_node,
1246                             const char **dai_name);
1247
1248 #include <sound/soc-dai.h>
1249
1250 #ifdef CONFIG_DEBUG_FS
1251 extern struct dentry *snd_soc_debugfs_root;
1252 #endif
1253
1254 extern const struct dev_pm_ops snd_soc_pm_ops;
1255
1256 /* Helper functions */
1257 static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm)
1258 {
1259         mutex_lock(&dapm->card->dapm_mutex);
1260 }
1261
1262 static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm)
1263 {
1264         mutex_unlock(&dapm->card->dapm_mutex);
1265 }
1266
1267 #endif