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 #include <sound/soc-topology.h>
  31
  32 /*
  33  * Convenience kcontrol builders
  34  */
  35 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert, xautodisable) \
  36         ((unsigned long)&(struct soc_mixer_control) \
  37         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
  38         .rshift = shift_right, .max = xmax, .platform_max = xmax, \
  39         .invert = xinvert, .autodisable = xautodisable})
  40 #define SOC_DOUBLE_S_VALUE(xreg, shift_left, shift_right, xmin, xmax, xsign_bit, xinvert, xautodisable) \
  41         ((unsigned long)&(struct soc_mixer_control) \
  42         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
  43         .rshift = shift_right, .min = xmin, .max = xmax, .platform_max = xmax, \
  44         .sign_bit = xsign_bit, .invert = xinvert, .autodisable = xautodisable})
  45 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \
  46         SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable)
  47 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
  48         ((unsigned long)&(struct soc_mixer_control) \
  49         {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
  50 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
  51         ((unsigned long)&(struct soc_mixer_control) \
  52         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  53         .max = xmax, .platform_max = xmax, .invert = xinvert})
  54 #define SOC_DOUBLE_R_S_VALUE(xlreg, xrreg, xshift, xmin, xmax, xsign_bit, xinvert) \
  55         ((unsigned long)&(struct soc_mixer_control) \
  56         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  57         .max = xmax, .min = xmin, .platform_max = xmax, .sign_bit = xsign_bit, \
  58         .invert = xinvert})
  59 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \
  60         ((unsigned long)&(struct soc_mixer_control) \
  61         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
  62         .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert})
  63 #define SOC_SINGLE(xname, reg, shift, max, invert) \
  64 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  65         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  66         .put = snd_soc_put_volsw, \
  67         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
  68 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
  69 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  70         .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
  71         .put = snd_soc_put_volsw_range, \
  72         .private_value = (unsigned long)&(struct soc_mixer_control) \
  73                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
  74                  .rshift = xshift,  .min = xmin, .max = xmax, \
  75                  .platform_max = xmax, .invert = xinvert} }
  76 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
  77 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  78         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  79                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
  80         .tlv.p = (tlv_array), \
  81         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
  82         .put = snd_soc_put_volsw, \
  83         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
  84 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
  85 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
  86         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
  87         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
  88         .tlv.p  = (tlv_array),\
  89         .info = snd_soc_info_volsw_sx, \
  90         .get = snd_soc_get_volsw_sx,\
  91         .put = snd_soc_put_volsw_sx, \
  92         .private_value = (unsigned long)&(struct soc_mixer_control) \
  93                 {.reg = xreg, .rreg = xreg, \
  94                 .shift = xshift, .rshift = xshift, \
  95                 .max = xmax, .min = xmin} }
  96 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
  97 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
  98         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
  99                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 100         .tlv.p = (tlv_array), \
 101         .info = snd_soc_info_volsw_range, \
 102         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 103         .private_value = (unsigned long)&(struct soc_mixer_control) \
 104                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
 105                  .rshift = xshift, .min = xmin, .max = xmax, \
 106                  .platform_max = xmax, .invert = xinvert} }
 107 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
 108 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 109         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 110         .put = snd_soc_put_volsw, \
 111         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 112                                           max, invert, 0) }
 113 #define SOC_DOUBLE_STS(xname, reg, shift_left, shift_right, max, invert) \
 114 {                                                                       \
 115         .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),           \
 116         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,           \
 117         .access = SNDRV_CTL_ELEM_ACCESS_READ |                          \
 118                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,                         \
 119         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 120                                           max, invert, 0) }
 121 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
 122 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 123         .info = snd_soc_info_volsw, \
 124         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 125         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 126                                             xmax, xinvert) }
 127 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
 128                            xmax, xinvert)               \
 129 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 130         .info = snd_soc_info_volsw_range, \
 131         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 132         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 133                                             xshift, xmin, xmax, xinvert) }
 134 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \
 135 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 136         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 137                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 138         .tlv.p = (tlv_array), \
 139         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
 140         .put = snd_soc_put_volsw, \
 141         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
 142                                           max, invert, 0) }
 143 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
 144 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 145         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 146                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 147         .tlv.p = (tlv_array), \
 148         .info = snd_soc_info_volsw, \
 149         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 150         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 151                                             xmax, xinvert) }
 152 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
 153                                xmax, xinvert, tlv_array)                \
 154 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 155         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 156                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 157         .tlv.p = (tlv_array), \
 158         .info = snd_soc_info_volsw_range, \
 159         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 160         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
 161                                             xshift, xmin, xmax, xinvert) }
 162 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
 163 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 164         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 165         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 166         .tlv.p  = (tlv_array), \
 167         .info = snd_soc_info_volsw_sx, \
 168         .get = snd_soc_get_volsw_sx, \
 169         .put = snd_soc_put_volsw_sx, \
 170         .private_value = (unsigned long)&(struct soc_mixer_control) \
 171                 {.reg = xreg, .rreg = xrreg, \
 172                 .shift = xshift, .rshift = xshift, \
 173                 .max = xmax, .min = xmin} }
 174 #define SOC_DOUBLE_R_S_TLV(xname, reg_left, reg_right, xshift, xmin, xmax, xsign_bit, xinvert, tlv_array) \
 175 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 176         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 177                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 178         .tlv.p = (tlv_array), \
 179         .info = snd_soc_info_volsw, \
 180         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
 181         .private_value = SOC_DOUBLE_R_S_VALUE(reg_left, reg_right, xshift, \
 182                                             xmin, xmax, xsign_bit, xinvert) }
 183 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
 184 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 185         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 186                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 187         .tlv.p  = (tlv_array), \
 188         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
 189         .put = snd_soc_put_volsw, \
 190         .private_value = SOC_DOUBLE_S_VALUE(xreg, 0, 8, xmin, xmax, 7, 0, 0) }
 191 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xitems, xtexts) \
 192 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 193         .items = xitems, .texts = xtexts, \
 194         .mask = xitems ? roundup_pow_of_two(xitems) - 1 : 0}
 195 #define SOC_ENUM_SINGLE(xreg, xshift, xitems, xtexts) \
 196         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xitems, xtexts)
 197 #define SOC_ENUM_SINGLE_EXT(xitems, xtexts) \
 198 {       .items = xitems, .texts = xtexts }
 199 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xitems, xtexts, xvalues) \
 200 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
 201         .mask = xmask, .items = xitems, .texts = xtexts, .values = xvalues}
 202 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xitems, xtexts, xvalues) \
 203         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xitems, xtexts, xvalues)
 204 #define SOC_VALUE_ENUM_SINGLE_AUTODISABLE(xreg, xshift, xmask, xitems, xtexts, xvalues) \
 205 {       .reg = xreg, .shift_l = xshift, .shift_r = xshift, \
 206         .mask = xmask, .items = xitems, .texts = xtexts, \
 207         .values = xvalues, .autodisable = 1}
 208 #define SOC_ENUM_SINGLE_VIRT(xitems, xtexts) \
 209         SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, xitems, xtexts)
 210 #define SOC_ENUM(xname, xenum) \
 211 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 212         .info = snd_soc_info_enum_double, \
 213         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
 214         .private_value = (unsigned long)&xenum }
 215 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
 216          xhandler_get, xhandler_put) \
 217 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 218         .info = snd_soc_info_volsw, \
 219         .get = xhandler_get, .put = xhandler_put, \
 220         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
 221 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
 222          xhandler_get, xhandler_put) \
 223 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 224         .info = snd_soc_info_volsw, \
 225         .get = xhandler_get, .put = xhandler_put, \
 226         .private_value = \
 227                 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert, 0) }
 228 #define SOC_DOUBLE_R_EXT(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 229          xhandler_get, xhandler_put) \
 230 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 231         .info = snd_soc_info_volsw, \
 232         .get = xhandler_get, .put = xhandler_put, \
 233         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 234                                             xmax, xinvert) }
 235 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
 236          xhandler_get, xhandler_put, tlv_array) \
 237 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 238         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 239                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 240         .tlv.p = (tlv_array), \
 241         .info = snd_soc_info_volsw, \
 242         .get = xhandler_get, .put = xhandler_put, \
 243         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
 244 #define SOC_SINGLE_RANGE_EXT_TLV(xname, xreg, xshift, xmin, xmax, xinvert, \
 245                                  xhandler_get, xhandler_put, tlv_array) \
 246 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 247         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 248                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 249         .tlv.p = (tlv_array), \
 250         .info = snd_soc_info_volsw_range, \
 251         .get = xhandler_get, .put = xhandler_put, \
 252         .private_value = (unsigned long)&(struct soc_mixer_control) \
 253                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
 254                  .rshift = xshift, .min = xmin, .max = xmax, \
 255                  .platform_max = xmax, .invert = xinvert} }
 256 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
 257          xhandler_get, xhandler_put, tlv_array) \
 258 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 259         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 260                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 261         .tlv.p = (tlv_array), \
 262         .info = snd_soc_info_volsw, \
 263         .get = xhandler_get, .put = xhandler_put, \
 264         .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
 265                                           xmax, xinvert, 0) }
 266 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
 267          xhandler_get, xhandler_put, tlv_array) \
 268 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 269         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 270                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 271         .tlv.p = (tlv_array), \
 272         .info = snd_soc_info_volsw, \
 273         .get = xhandler_get, .put = xhandler_put, \
 274         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
 275                                             xmax, xinvert) }
 276 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
 277 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 278         .info = snd_soc_info_bool_ext, \
 279         .get = xhandler_get, .put = xhandler_put, \
 280         .private_value = xdata }
 281 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 282 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 283         .info = snd_soc_info_enum_double, \
 284         .get = xhandler_get, .put = xhandler_put, \
 285         .private_value = (unsigned long)&xenum }
 286 #define SOC_VALUE_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
 287         SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put)
 288
 289 #define SND_SOC_BYTES(xname, xbase, xregs)                    \
 290 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 291         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 292         .put = snd_soc_bytes_put, .private_value =            \
 293                 ((unsigned long)&(struct soc_bytes)           \
 294                 {.base = xbase, .num_regs = xregs }) }
 295
 296 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
 297 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
 298         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
 299         .put = snd_soc_bytes_put, .private_value =            \
 300                 ((unsigned long)&(struct soc_bytes)           \
 301                 {.base = xbase, .num_regs = xregs,            \
 302                  .mask = xmask }) }
 303
 304 /*
 305  * SND_SOC_BYTES_EXT is deprecated, please USE SND_SOC_BYTES_TLV instead
 306  */
 307 #define SND_SOC_BYTES_EXT(xname, xcount, xhandler_get, xhandler_put) \
 308 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 309         .info = snd_soc_bytes_info_ext, \
 310         .get = xhandler_get, .put = xhandler_put, \
 311         .private_value = (unsigned long)&(struct soc_bytes_ext) \
 312                 {.max = xcount} }
 313 #define SND_SOC_BYTES_TLV(xname, xcount, xhandler_get, xhandler_put) \
 314 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 315         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE | \
 316                   SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
 317         .tlv.c = (snd_soc_bytes_tlv_callback), \
 318         .info = snd_soc_bytes_info_ext, \
 319         .private_value = (unsigned long)&(struct soc_bytes_ext) \
 320                 {.max = xcount, .get = xhandler_get, .put = xhandler_put, } }
 321 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
 322                 xmin, xmax, xinvert) \
 323 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
 324         .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
 325         .put = snd_soc_put_xr_sx, \
 326         .private_value = (unsigned long)&(struct soc_mreg_control) \
 327                 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
 328                 .invert = xinvert, .min = xmin, .max = xmax} }
 329
 330 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
 331         SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
 332                 snd_soc_get_strobe, snd_soc_put_strobe)
 333
 334 /*
 335  * Simplified versions of above macros, declaring a struct and calculating
 336  * ARRAY_SIZE internally
 337  */
 338 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
 339         const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
 340                                                 ARRAY_SIZE(xtexts), xtexts)
 341 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
 342         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
 343 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
 344         const struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
 345 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
 346         const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
 347                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
 348 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 349         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
 350
 351 #define SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
 352         const struct soc_enum name = SOC_VALUE_ENUM_SINGLE_AUTODISABLE(xreg, \
 353                 xshift, xmask, ARRAY_SIZE(xtexts), xtexts, xvalues)
 354
 355 #define SOC_ENUM_SINGLE_VIRT_DECL(name, xtexts) \
 356         const struct soc_enum name = SOC_ENUM_SINGLE_VIRT(ARRAY_SIZE(xtexts), xtexts)
 357
 358 /*
 359  * Component probe and remove ordering levels for components with runtime
 360  * dependencies.
 361  */
 362 #define SND_SOC_COMP_ORDER_FIRST                -2
 363 #define SND_SOC_COMP_ORDER_EARLY                -1
 364 #define SND_SOC_COMP_ORDER_NORMAL               0
 365 #define SND_SOC_COMP_ORDER_LATE         1
 366 #define SND_SOC_COMP_ORDER_LAST         2
 367
 368 /*
 369  * Bias levels
 370  *
 371  * @ON:      Bias is fully on for audio playback and capture operations.
 372  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
 373  *           stream start and stop operations.
 374  * @STANDBY: Low power standby state when no playback/capture operations are
 375  *           in progress. NOTE: The transition time between STANDBY and ON
 376  *           should be as fast as possible and no longer than 10ms.
 377  * @OFF:     Power Off. No restrictions on transition times.
 378  */
 379 enum snd_soc_bias_level {
 380         SND_SOC_BIAS_OFF = 0,
 381         SND_SOC_BIAS_STANDBY = 1,
 382         SND_SOC_BIAS_PREPARE = 2,
 383         SND_SOC_BIAS_ON = 3,
 384 };
 385
 386 struct device_node;
 387 struct snd_jack;
 388 struct snd_soc_card;
 389 struct snd_soc_pcm_stream;
 390 struct snd_soc_ops;
 391 struct snd_soc_pcm_runtime;
 392 struct snd_soc_dai;
 393 struct snd_soc_dai_driver;
 394 struct snd_soc_platform;
 395 struct snd_soc_dai_link;
 396 struct snd_soc_platform_driver;
 397 struct snd_soc_codec;
 398 struct snd_soc_codec_driver;
 399 struct snd_soc_component;
 400 struct snd_soc_component_driver;
 401 struct soc_enum;
 402 struct snd_soc_jack;
 403 struct snd_soc_jack_zone;
 404 struct snd_soc_jack_pin;
 405 #include <sound/soc-dapm.h>
 406 #include <sound/soc-dpcm.h>
 407
 408 struct snd_soc_jack_gpio;
 409
 410 typedef int (*hw_write_t)(void *,const char* ,int);
 411
 412 enum snd_soc_pcm_subclass {
 413         SND_SOC_PCM_CLASS_PCM   = 0,
 414         SND_SOC_PCM_CLASS_BE    = 1,
 415 };
 416
 417 enum snd_soc_card_subclass {
 418         SND_SOC_CARD_CLASS_INIT         = 0,
 419         SND_SOC_CARD_CLASS_RUNTIME      = 1,
 420 };
 421
 422 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
 423                              int source, unsigned int freq, int dir);
 424 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 425                           unsigned int freq_in, unsigned int freq_out);
 426
 427 int snd_soc_register_card(struct snd_soc_card *card);
 428 int snd_soc_unregister_card(struct snd_soc_card *card);
 429 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card);
 430 #ifdef CONFIG_PM_SLEEP
 431 int snd_soc_suspend(struct device *dev);
 432 int snd_soc_resume(struct device *dev);
 433 #else
 434 static inline int snd_soc_suspend(struct device *dev)
 435 {
 436         return 0;
 437 }
 438
 439 static inline int snd_soc_resume(struct device *dev)
 440 {
 441         return 0;
 442 }
 443 #endif
 444 int snd_soc_poweroff(struct device *dev);
 445 int snd_soc_register_platform(struct device *dev,
 446                 const struct snd_soc_platform_driver *platform_drv);
 447 int devm_snd_soc_register_platform(struct device *dev,
 448                 const struct snd_soc_platform_driver *platform_drv);
 449 void snd_soc_unregister_platform(struct device *dev);
 450 int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
 451                 const struct snd_soc_platform_driver *platform_drv);
 452 void snd_soc_remove_platform(struct snd_soc_platform *platform);
 453 struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev);
 454 int snd_soc_register_codec(struct device *dev,
 455                 const struct snd_soc_codec_driver *codec_drv,
 456                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 457 void snd_soc_unregister_codec(struct device *dev);
 458 int snd_soc_register_component(struct device *dev,
 459                          const struct snd_soc_component_driver *cmpnt_drv,
 460                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 461 int devm_snd_soc_register_component(struct device *dev,
 462                          const struct snd_soc_component_driver *cmpnt_drv,
 463                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 464 void snd_soc_unregister_component(struct device *dev);
 465 int snd_soc_cache_init(struct snd_soc_codec *codec);
 466 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 467
 468 int snd_soc_platform_read(struct snd_soc_platform *platform,
 469                                         unsigned int reg);
 470 int snd_soc_platform_write(struct snd_soc_platform *platform,
 471                                         unsigned int reg, unsigned int val);
 472 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 473 #ifdef CONFIG_SND_SOC_COMPRESS
 474 int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
 475 #endif
 476
 477 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 478                 const char *dai_link, int stream);
 479 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 480                 const char *dai_link);
 481
 482 bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd);
 483 void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream);
 484 void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream);
 485
 486 int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd,
 487         unsigned int dai_fmt);
 488
 489 /* Utility functions to get clock rates from various things */
 490 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 491 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 492 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 493 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 494
 495 /* set runtime hw params */
 496 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 497         const struct snd_pcm_hardware *hw);
 498
 499 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 500                 int cmd, struct snd_soc_platform *platform);
 501
 502 int soc_dai_hw_params(struct snd_pcm_substream *substream,
 503                       struct snd_pcm_hw_params *params,
 504                       struct snd_soc_dai *dai);
 505
 506 /* Jack reporting */
 507 int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type,
 508         struct snd_soc_jack *jack, struct snd_soc_jack_pin *pins,
 509         unsigned int num_pins);
 510
 511 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 512 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 513                           struct snd_soc_jack_pin *pins);
 514 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 515                                     struct notifier_block *nb);
 516 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 517                                       struct notifier_block *nb);
 518 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 519                           struct snd_soc_jack_zone *zones);
 520 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 521 #ifdef CONFIG_GPIOLIB
 522 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 523                         struct snd_soc_jack_gpio *gpios);
 524 int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
 525                             struct snd_soc_jack *jack,
 526                             int count, struct snd_soc_jack_gpio *gpios);
 527 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 528                         struct snd_soc_jack_gpio *gpios);
 529 #else
 530 static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 531                                          struct snd_soc_jack_gpio *gpios)
 532 {
 533         return 0;
 534 }
 535
 536 static inline int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
 537                                           struct snd_soc_jack *jack,
 538                                           int count,
 539                                           struct snd_soc_jack_gpio *gpios)
 540 {
 541         return 0;
 542 }
 543
 544 static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 545                                            struct snd_soc_jack_gpio *gpios)
 546 {
 547 }
 548 #endif
 549
 550 /* codec register bit access */
 551 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned int reg,
 552                                 unsigned int mask, unsigned int value);
 553 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 554                                unsigned int reg, unsigned int mask,
 555                                unsigned int value);
 556 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg,
 557                                 unsigned int mask, unsigned int value);
 558
 559 #ifdef CONFIG_SND_SOC_AC97_BUS
 560 struct snd_ac97 *snd_soc_alloc_ac97_codec(struct snd_soc_codec *codec);
 561 struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
 562         unsigned int id, unsigned int id_mask);
 563 void snd_soc_free_ac97_codec(struct snd_ac97 *ac97);
 564
 565 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
 566 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
 567                 struct platform_device *pdev);
 568
 569 extern struct snd_ac97_bus_ops *soc_ac97_ops;
 570 #else
 571 static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
 572         struct platform_device *pdev)
 573 {
 574         return 0;
 575 }
 576
 577 static inline int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
 578 {
 579         return 0;
 580 }
 581 #endif
 582
 583 /*
 584  *Controls
 585  */
 586 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 587                                   void *data, const char *long_name,
 588                                   const char *prefix);
 589 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
 590                                                const char *name);
 591 int snd_soc_add_component_controls(struct snd_soc_component *component,
 592         const struct snd_kcontrol_new *controls, unsigned int num_controls);
 593 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 594         const struct snd_kcontrol_new *controls, unsigned int num_controls);
 595 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 596         const struct snd_kcontrol_new *controls, unsigned int num_controls);
 597 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 598         const struct snd_kcontrol_new *controls, int num_controls);
 599 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 600         const struct snd_kcontrol_new *controls, int num_controls);
 601 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 602         struct snd_ctl_elem_info *uinfo);
 603 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 604         struct snd_ctl_elem_value *ucontrol);
 605 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 606         struct snd_ctl_elem_value *ucontrol);
 607 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 608         struct snd_ctl_elem_info *uinfo);
 609 int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol,
 610                           struct snd_ctl_elem_info *uinfo);
 611 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 612 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 613         struct snd_ctl_elem_value *ucontrol);
 614 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 615         struct snd_ctl_elem_value *ucontrol);
 616 #define snd_soc_get_volsw_2r snd_soc_get_volsw
 617 #define snd_soc_put_volsw_2r snd_soc_put_volsw
 618 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 619         struct snd_ctl_elem_value *ucontrol);
 620 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 621         struct snd_ctl_elem_value *ucontrol);
 622 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
 623         struct snd_ctl_elem_info *uinfo);
 624 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 625         struct snd_ctl_elem_value *ucontrol);
 626 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
 627         struct snd_ctl_elem_value *ucontrol);
 628 int snd_soc_limit_volume(struct snd_soc_card *card,
 629         const char *name, int max);
 630 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
 631                        struct snd_ctl_elem_info *uinfo);
 632 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 633                       struct snd_ctl_elem_value *ucontrol);
 634 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 635                       struct snd_ctl_elem_value *ucontrol);
 636 int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol,
 637         struct snd_ctl_elem_info *ucontrol);
 638 int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag,
 639         unsigned int size, unsigned int __user *tlv);
 640 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
 641         struct snd_ctl_elem_info *uinfo);
 642 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
 643         struct snd_ctl_elem_value *ucontrol);
 644 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 645         struct snd_ctl_elem_value *ucontrol);
 646 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 647         struct snd_ctl_elem_value *ucontrol);
 648 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 649         struct snd_ctl_elem_value *ucontrol);
 650
 651 /**
 652  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 653  *
 654  * @pin:    name of the pin to update
 655  * @mask:   bits to check for in reported jack status
 656  * @invert: if non-zero then pin is enabled when status is not reported
 657  * @list:   internal list entry
 658  */
 659 struct snd_soc_jack_pin {
 660         struct list_head list;
 661         const char *pin;
 662         int mask;
 663         bool invert;
 664 };
 665
 666 /**
 667  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 668  *
 669  * @min_mv: start voltage in mv
 670  * @max_mv: end voltage in mv
 671  * @jack_type: type of jack that is expected for this voltage
 672  * @debounce_time: debounce_time for jack, codec driver should wait for this
 673  *              duration before reading the adc for voltages
 674  * @list:   internal list entry
 675  */
 676 struct snd_soc_jack_zone {
 677         unsigned int min_mv;
 678         unsigned int max_mv;
 679         unsigned int jack_type;
 680         unsigned int debounce_time;
 681         struct list_head list;
 682 };
 683
 684 /**
 685  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 686  *
 687  * @gpio:         legacy gpio number
 688  * @idx:          gpio descriptor index within the function of the GPIO
 689  *                consumer device
 690  * @gpiod_dev:    GPIO consumer device
 691  * @name:         gpio name. Also as connection ID for the GPIO consumer
 692  *                device function name lookup
 693  * @report:       value to report when jack detected
 694  * @invert:       report presence in low state
 695  * @debounce_time: debounce time in ms
 696  * @wake:         enable as wake source
 697  * @jack_status_check: callback function which overrides the detection
 698  *                     to provide more complex checks (eg, reading an
 699  *                     ADC).
 700  */
 701 struct snd_soc_jack_gpio {
 702         unsigned int gpio;
 703         unsigned int idx;
 704         struct device *gpiod_dev;
 705         const char *name;
 706         int report;
 707         int invert;
 708         int debounce_time;
 709         bool wake;
 710
 711         /* private: */
 712         struct snd_soc_jack *jack;
 713         struct delayed_work work;
 714         struct gpio_desc *desc;
 715
 716         void *data;
 717         /* public: */
 718         int (*jack_status_check)(void *data);
 719 };
 720
 721 struct snd_soc_jack {
 722         struct mutex mutex;
 723         struct snd_jack *jack;
 724         struct snd_soc_card *card;
 725         struct list_head pins;
 726         int status;
 727         struct blocking_notifier_head notifier;
 728         struct list_head jack_zones;
 729 };
 730
 731 /* SoC PCM stream information */
 732 struct snd_soc_pcm_stream {
 733         const char *stream_name;
 734         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 735         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 736         unsigned int rate_min;          /* min rate */
 737         unsigned int rate_max;          /* max rate */
 738         unsigned int channels_min;      /* min channels */
 739         unsigned int channels_max;      /* max channels */
 740         unsigned int sig_bits;          /* number of bits of content */
 741 };
 742
 743 /* SoC audio ops */
 744 struct snd_soc_ops {
 745         int (*startup)(struct snd_pcm_substream *);
 746         void (*shutdown)(struct snd_pcm_substream *);
 747         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 748         int (*hw_free)(struct snd_pcm_substream *);
 749         int (*prepare)(struct snd_pcm_substream *);
 750         int (*trigger)(struct snd_pcm_substream *, int);
 751 };
 752
 753 struct snd_soc_compr_ops {
 754         int (*startup)(struct snd_compr_stream *);
 755         void (*shutdown)(struct snd_compr_stream *);
 756         int (*set_params)(struct snd_compr_stream *);
 757         int (*trigger)(struct snd_compr_stream *);
 758 };
 759
 760 /* component interface */
 761 struct snd_soc_component_driver {
 762         const char *name;
 763
 764         /* Default control and setup, added after probe() is run */
 765         const struct snd_kcontrol_new *controls;
 766         unsigned int num_controls;
 767         const struct snd_soc_dapm_widget *dapm_widgets;
 768         unsigned int num_dapm_widgets;
 769         const struct snd_soc_dapm_route *dapm_routes;
 770         unsigned int num_dapm_routes;
 771
 772         int (*probe)(struct snd_soc_component *);
 773         void (*remove)(struct snd_soc_component *);
 774
 775         /* DT */
 776         int (*of_xlate_dai_name)(struct snd_soc_component *component,
 777                                  struct of_phandle_args *args,
 778                                  const char **dai_name);
 779         void (*seq_notifier)(struct snd_soc_component *, enum snd_soc_dapm_type,
 780                 int subseq);
 781         int (*stream_event)(struct snd_soc_component *, int event);
 782
 783         /* probe ordering - for components with runtime dependencies */
 784         int probe_order;
 785         int remove_order;
 786 };
 787
 788 struct snd_soc_component {
 789         const char *name;
 790         int id;
 791         const char *name_prefix;
 792         struct device *dev;
 793         struct snd_soc_card *card;
 794
 795         unsigned int active;
 796
 797         unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 798         unsigned int registered_as_component:1;
 799
 800         struct list_head list;
 801
 802         struct snd_soc_dai_driver *dai_drv;
 803         int num_dai;
 804
 805         const struct snd_soc_component_driver *driver;
 806
 807         struct list_head dai_list;
 808
 809         int (*read)(struct snd_soc_component *, unsigned int, unsigned int *);
 810         int (*write)(struct snd_soc_component *, unsigned int, unsigned int);
 811
 812         struct regmap *regmap;
 813         int val_bytes;
 814
 815         struct mutex io_mutex;
 816
 817         /* attached dynamic objects */
 818         struct list_head dobj_list;
 819
 820 #ifdef CONFIG_DEBUG_FS
 821         struct dentry *debugfs_root;
 822 #endif
 823
 824         /*
 825         * DO NOT use any of the fields below in drivers, they are temporary and
 826         * are going to be removed again soon. If you use them in driver code the
 827         * driver will be marked as BROKEN when these fields are removed.
 828         */
 829
 830         /* Don't use these, use snd_soc_component_get_dapm() */
 831         struct snd_soc_dapm_context dapm;
 832
 833         const struct snd_kcontrol_new *controls;
 834         unsigned int num_controls;
 835         const struct snd_soc_dapm_widget *dapm_widgets;
 836         unsigned int num_dapm_widgets;
 837         const struct snd_soc_dapm_route *dapm_routes;
 838         unsigned int num_dapm_routes;
 839         struct snd_soc_codec *codec;
 840
 841         int (*probe)(struct snd_soc_component *);
 842         void (*remove)(struct snd_soc_component *);
 843
 844 #ifdef CONFIG_DEBUG_FS
 845         void (*init_debugfs)(struct snd_soc_component *component);
 846         const char *debugfs_prefix;
 847 #endif
 848 };
 849
 850 /* SoC Audio Codec device */
 851 struct snd_soc_codec {
 852         struct device *dev;
 853         const struct snd_soc_codec_driver *driver;
 854
 855         struct list_head list;
 856         struct list_head card_list;
 857
 858         /* runtime */
 859         unsigned int cache_bypass:1; /* Suppress access to the cache */
 860         unsigned int suspended:1; /* Codec is in suspend PM state */
 861         unsigned int cache_init:1; /* codec cache has been initialized */
 862
 863         /* codec IO */
 864         void *control_data; /* codec control (i2c/3wire) data */
 865         hw_write_t hw_write;
 866         void *reg_cache;
 867
 868         /* component */
 869         struct snd_soc_component component;
 870
 871 #ifdef CONFIG_DEBUG_FS
 872         struct dentry *debugfs_reg;
 873 #endif
 874 };
 875
 876 /* codec driver */
 877 struct snd_soc_codec_driver {
 878
 879         /* driver ops */
 880         int (*probe)(struct snd_soc_codec *);
 881         int (*remove)(struct snd_soc_codec *);
 882         int (*suspend)(struct snd_soc_codec *);
 883         int (*resume)(struct snd_soc_codec *);
 884         struct snd_soc_component_driver component_driver;
 885
 886         /* Default control and setup, added after probe() is run */
 887         const struct snd_kcontrol_new *controls;
 888         int num_controls;
 889         const struct snd_soc_dapm_widget *dapm_widgets;
 890         int num_dapm_widgets;
 891         const struct snd_soc_dapm_route *dapm_routes;
 892         int num_dapm_routes;
 893
 894         /* codec wide operations */
 895         int (*set_sysclk)(struct snd_soc_codec *codec,
 896                           int clk_id, int source, unsigned int freq, int dir);
 897         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 898                 unsigned int freq_in, unsigned int freq_out);
 899
 900         /* codec IO */
 901         struct regmap *(*get_regmap)(struct device *);
 902         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 903         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 904         unsigned int reg_cache_size;
 905         short reg_cache_step;
 906         short reg_word_size;
 907         const void *reg_cache_default;
 908
 909         /* codec bias level */
 910         int (*set_bias_level)(struct snd_soc_codec *,
 911                               enum snd_soc_bias_level level);
 912         bool idle_bias_off;
 913         bool suspend_bias_off;
 914
 915         void (*seq_notifier)(struct snd_soc_dapm_context *,
 916                              enum snd_soc_dapm_type, int);
 917
 918         bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 919 };
 920
 921 /* SoC platform interface */
 922 struct snd_soc_platform_driver {
 923
 924         int (*probe)(struct snd_soc_platform *);
 925         int (*remove)(struct snd_soc_platform *);
 926         struct snd_soc_component_driver component_driver;
 927
 928         /* pcm creation and destruction */
 929         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 930         void (*pcm_free)(struct snd_pcm *);
 931
 932         /*
 933          * For platform caused delay reporting.
 934          * Optional.
 935          */
 936         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 937                 struct snd_soc_dai *);
 938
 939         /* platform stream pcm ops */
 940         const struct snd_pcm_ops *ops;
 941
 942         /* platform stream compress ops */
 943         const struct snd_compr_ops *compr_ops;
 944
 945         int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 946 };
 947
 948 struct snd_soc_dai_link_component {
 949         const char *name;
 950         struct device_node *of_node;
 951         const char *dai_name;
 952 };
 953
 954 struct snd_soc_platform {
 955         struct device *dev;
 956         const struct snd_soc_platform_driver *driver;
 957
 958         struct list_head list;
 959
 960         struct snd_soc_component component;
 961 };
 962
 963 struct snd_soc_dai_link {
 964         /* config - must be set by machine driver */
 965         const char *name;                       /* Codec name */
 966         const char *stream_name;                /* Stream name */
 967         /*
 968          * You MAY specify the link's CPU-side device, either by device name,
 969          * or by DT/OF node, but not both. If this information is omitted,
 970          * the CPU-side DAI is matched using .cpu_dai_name only, which hence
 971          * must be globally unique. These fields are currently typically used
 972          * only for codec to codec links, or systems using device tree.
 973          */
 974         const char *cpu_name;
 975         struct device_node *cpu_of_node;
 976         /*
 977          * You MAY specify the DAI name of the CPU DAI. If this information is
 978          * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
 979          * only, which only works well when that device exposes a single DAI.
 980          */
 981         const char *cpu_dai_name;
 982         /*
 983          * You MUST specify the link's codec, either by device name, or by
 984          * DT/OF node, but not both.
 985          */
 986         const char *codec_name;
 987         struct device_node *codec_of_node;
 988         /* You MUST specify the DAI name within the codec */
 989         const char *codec_dai_name;
 990
 991         struct snd_soc_dai_link_component *codecs;
 992         unsigned int num_codecs;
 993
 994         /*
 995          * You MAY specify the link's platform/PCM/DMA driver, either by
 996          * device name, or by DT/OF node, but not both. Some forms of link
 997          * do not need a platform.
 998          */
 999         const char *platform_name;
1000         struct device_node *platform_of_node;
1001         int be_id;      /* optional ID for machine driver BE identification */
1002
1003         const struct snd_soc_pcm_stream *params;
1004         unsigned int num_params;
1005
1006         unsigned int dai_fmt;           /* format to set on init */
1007
1008         enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
1009
1010         /* codec/machine specific init - e.g. add machine controls */
1011         int (*init)(struct snd_soc_pcm_runtime *rtd);
1012
1013         /* optional hw_params re-writing for BE and FE sync */
1014         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
1015                         struct snd_pcm_hw_params *params);
1016
1017         /* machine stream operations */
1018         const struct snd_soc_ops *ops;
1019         const struct snd_soc_compr_ops *compr_ops;
1020
1021         /* For unidirectional dai links */
1022         bool playback_only;
1023         bool capture_only;
1024
1025         /* Mark this pcm with non atomic ops */
1026         bool nonatomic;
1027
1028         /* Keep DAI active over suspend */
1029         unsigned int ignore_suspend:1;
1030
1031         /* Symmetry requirements */
1032         unsigned int symmetric_rates:1;
1033         unsigned int symmetric_channels:1;
1034         unsigned int symmetric_samplebits:1;
1035
1036         /* Do not create a PCM for this DAI link (Backend link) */
1037         unsigned int no_pcm:1;
1038
1039         /* This DAI link can route to other DAI links at runtime (Frontend)*/
1040         unsigned int dynamic:1;
1041
1042         /* DPCM capture and Playback support */
1043         unsigned int dpcm_capture:1;
1044         unsigned int dpcm_playback:1;
1045
1046         /* DPCM used FE & BE merged format */
1047         unsigned int dpcm_merged_format:1;
1048
1049         /* pmdown_time is ignored at stop */
1050         unsigned int ignore_pmdown_time:1;
1051
1052         struct list_head list; /* DAI link list of the soc card */
1053         struct snd_soc_dobj dobj; /* For topology */
1054 };
1055
1056 struct snd_soc_codec_conf {
1057         /*
1058          * specify device either by device name, or by
1059          * DT/OF node, but not both.
1060          */
1061         const char *dev_name;
1062         struct device_node *of_node;
1063
1064         /*
1065          * optional map of kcontrol, widget and path name prefixes that are
1066          * associated per device
1067          */
1068         const char *name_prefix;
1069 };
1070
1071 struct snd_soc_aux_dev {
1072         const char *name;               /* Codec name */
1073
1074         /*
1075          * specify multi-codec either by device name, or by
1076          * DT/OF node, but not both.
1077          */
1078         const char *codec_name;
1079         struct device_node *codec_of_node;
1080
1081         /* codec/machine specific init - e.g. add machine controls */
1082         int (*init)(struct snd_soc_component *component);
1083 };
1084
1085 /* SoC card */
1086 struct snd_soc_card {
1087         const char *name;
1088         const char *long_name;
1089         const char *driver_name;
1090         struct device *dev;
1091         struct snd_card *snd_card;
1092         struct module *owner;
1093
1094         struct mutex mutex;
1095         struct mutex dapm_mutex;
1096
1097         bool instantiated;
1098
1099         int (*probe)(struct snd_soc_card *card);
1100         int (*late_probe)(struct snd_soc_card *card);
1101         int (*remove)(struct snd_soc_card *card);
1102
1103         /* the pre and post PM functions are used to do any PM work before and
1104          * after the codec and DAI's do any PM work. */
1105         int (*suspend_pre)(struct snd_soc_card *card);
1106         int (*suspend_post)(struct snd_soc_card *card);
1107         int (*resume_pre)(struct snd_soc_card *card);
1108         int (*resume_post)(struct snd_soc_card *card);
1109
1110         /* callbacks */
1111         int (*set_bias_level)(struct snd_soc_card *,
1112                               struct snd_soc_dapm_context *dapm,
1113                               enum snd_soc_bias_level level);
1114         int (*set_bias_level_post)(struct snd_soc_card *,
1115                                    struct snd_soc_dapm_context *dapm,
1116                                    enum snd_soc_bias_level level);
1117
1118         int (*add_dai_link)(struct snd_soc_card *,
1119                             struct snd_soc_dai_link *link);
1120         void (*remove_dai_link)(struct snd_soc_card *,
1121                             struct snd_soc_dai_link *link);
1122
1123         long pmdown_time;
1124
1125         /* CPU <--> Codec DAI links  */
1126         struct snd_soc_dai_link *dai_link;  /* predefined links only */
1127         int num_links;  /* predefined links only */
1128         struct list_head dai_link_list; /* all links */
1129         int num_dai_links;
1130
1131         struct list_head rtd_list;
1132         int num_rtd;
1133
1134         /* optional codec specific configuration */
1135         struct snd_soc_codec_conf *codec_conf;
1136         int num_configs;
1137
1138         /*
1139          * optional auxiliary devices such as amplifiers or codecs with DAI
1140          * link unused
1141          */
1142         struct snd_soc_aux_dev *aux_dev;
1143         int num_aux_devs;
1144         struct snd_soc_pcm_runtime *rtd_aux;
1145         int num_aux_rtd;
1146
1147         const struct snd_kcontrol_new *controls;
1148         int num_controls;
1149
1150         /*
1151          * Card-specific routes and widgets.
1152          * Note: of_dapm_xxx for Device Tree; Otherwise for driver build-in.
1153          */
1154         const struct snd_soc_dapm_widget *dapm_widgets;
1155         int num_dapm_widgets;
1156         const struct snd_soc_dapm_route *dapm_routes;
1157         int num_dapm_routes;
1158         const struct snd_soc_dapm_widget *of_dapm_widgets;
1159         int num_of_dapm_widgets;
1160         const struct snd_soc_dapm_route *of_dapm_routes;
1161         int num_of_dapm_routes;
1162         bool fully_routed;
1163
1164         struct work_struct deferred_resume_work;
1165
1166         /* lists of probed devices belonging to this card */
1167         struct list_head codec_dev_list;
1168
1169         struct list_head widgets;
1170         struct list_head paths;
1171         struct list_head dapm_list;
1172         struct list_head dapm_dirty;
1173
1174         /* attached dynamic objects */
1175         struct list_head dobj_list;
1176
1177         /* Generic DAPM context for the card */
1178         struct snd_soc_dapm_context dapm;
1179         struct snd_soc_dapm_stats dapm_stats;
1180         struct snd_soc_dapm_update *update;
1181
1182 #ifdef CONFIG_DEBUG_FS
1183         struct dentry *debugfs_card_root;
1184         struct dentry *debugfs_pop_time;
1185 #endif
1186         u32 pop_time;
1187
1188         void *drvdata;
1189 };
1190
1191 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1192 struct snd_soc_pcm_runtime {
1193         struct device *dev;
1194         struct snd_soc_card *card;
1195         struct snd_soc_dai_link *dai_link;
1196         struct mutex pcm_mutex;
1197         enum snd_soc_pcm_subclass pcm_subclass;
1198         struct snd_pcm_ops ops;
1199
1200         unsigned int dev_registered:1;
1201
1202         /* Dynamic PCM BE runtime data */
1203         struct snd_soc_dpcm_runtime dpcm[2];
1204         int fe_compr;
1205
1206         long pmdown_time;
1207         unsigned char pop_wait:1;
1208
1209         /* runtime devices */
1210         struct snd_pcm *pcm;
1211         struct snd_compr *compr;
1212         struct snd_soc_codec *codec;
1213         struct snd_soc_platform *platform;
1214         struct snd_soc_dai *codec_dai;
1215         struct snd_soc_dai *cpu_dai;
1216         struct snd_soc_component *component; /* Only valid for AUX dev rtds */
1217
1218         struct snd_soc_dai **codec_dais;
1219         unsigned int num_codecs;
1220
1221         struct delayed_work delayed_work;
1222 #ifdef CONFIG_DEBUG_FS
1223         struct dentry *debugfs_dpcm_root;
1224         struct dentry *debugfs_dpcm_state;
1225 #endif
1226
1227         unsigned int num; /* 0-based and monotonic increasing */
1228         struct list_head list; /* rtd list of the soc card */
1229 };
1230
1231 /* mixer control */
1232 struct soc_mixer_control {
1233         int min, max, platform_max;
1234         int reg, rreg;
1235         unsigned int shift, rshift;
1236         unsigned int sign_bit;
1237         unsigned int invert:1;
1238         unsigned int autodisable:1;
1239         struct snd_soc_dobj dobj;
1240 };
1241
1242 struct soc_bytes {
1243         int base;
1244         int num_regs;
1245         u32 mask;
1246 };
1247
1248 struct soc_bytes_ext {
1249         int max;
1250         struct snd_soc_dobj dobj;
1251
1252         /* used for TLV byte control */
1253         int (*get)(struct snd_kcontrol *kcontrol, unsigned int __user *bytes,
1254                         unsigned int size);
1255         int (*put)(struct snd_kcontrol *kcontrol, const unsigned int __user *bytes,
1256                         unsigned int size);
1257 };
1258
1259 /* multi register control */
1260 struct soc_mreg_control {
1261         long min, max;
1262         unsigned int regbase, regcount, nbits, invert;
1263 };
1264
1265 /* enumerated kcontrol */
1266 struct soc_enum {
1267         int reg;
1268         unsigned char shift_l;
1269         unsigned char shift_r;
1270         unsigned int items;
1271         unsigned int mask;
1272         const char * const *texts;
1273         const unsigned int *values;
1274         unsigned int autodisable:1;
1275         struct snd_soc_dobj dobj;
1276 };
1277
1278 /**
1279  * snd_soc_component_to_codec() - Casts a component to the CODEC it is embedded in
1280  * @component: The component to cast to a CODEC
1281  *
1282  * This function must only be used on components that are known to be CODECs.
1283  * Otherwise the behavior is undefined.
1284  */
1285 static inline struct snd_soc_codec *snd_soc_component_to_codec(
1286         struct snd_soc_component *component)
1287 {
1288         return container_of(component, struct snd_soc_codec, component);
1289 }
1290
1291 /**
1292  * snd_soc_component_to_platform() - Casts a component to the platform it is embedded in
1293  * @component: The component to cast to a platform
1294  *
1295  * This function must only be used on components that are known to be platforms.
1296  * Otherwise the behavior is undefined.
1297  */
1298 static inline struct snd_soc_platform *snd_soc_component_to_platform(
1299         struct snd_soc_component *component)
1300 {
1301         return container_of(component, struct snd_soc_platform, component);
1302 }
1303
1304 /**
1305  * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is
1306  *  embedded in
1307  * @dapm: The DAPM context to cast to the component
1308  *
1309  * This function must only be used on DAPM contexts that are known to be part of
1310  * a component (e.g. in a component driver). Otherwise the behavior is
1311  * undefined.
1312  */
1313 static inline struct snd_soc_component *snd_soc_dapm_to_component(
1314         struct snd_soc_dapm_context *dapm)
1315 {
1316         return container_of(dapm, struct snd_soc_component, dapm);
1317 }
1318
1319 /**
1320  * snd_soc_dapm_to_codec() - Casts a DAPM context to the CODEC it is embedded in
1321  * @dapm: The DAPM context to cast to the CODEC
1322  *
1323  * This function must only be used on DAPM contexts that are known to be part of
1324  * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined.
1325  */
1326 static inline struct snd_soc_codec *snd_soc_dapm_to_codec(
1327         struct snd_soc_dapm_context *dapm)
1328 {
1329         return snd_soc_component_to_codec(snd_soc_dapm_to_component(dapm));
1330 }
1331
1332 /**
1333  * snd_soc_dapm_to_platform() - Casts a DAPM context to the platform it is
1334  *  embedded in
1335  * @dapm: The DAPM context to cast to the platform.
1336  *
1337  * This function must only be used on DAPM contexts that are known to be part of
1338  * a platform (e.g. in a platform driver). Otherwise the behavior is undefined.
1339  */
1340 static inline struct snd_soc_platform *snd_soc_dapm_to_platform(
1341         struct snd_soc_dapm_context *dapm)
1342 {
1343         return snd_soc_component_to_platform(snd_soc_dapm_to_component(dapm));
1344 }
1345
1346 /**
1347  * snd_soc_component_get_dapm() - Returns the DAPM context associated with a
1348  *  component
1349  * @component: The component for which to get the DAPM context
1350  */
1351 static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm(
1352         struct snd_soc_component *component)
1353 {
1354         return &component->dapm;
1355 }
1356
1357 /**
1358  * snd_soc_codec_get_dapm() - Returns the DAPM context for the CODEC
1359  * @codec: The CODEC for which to get the DAPM context
1360  *
1361  * Note: Use this function instead of directly accessing the CODEC's dapm field
1362  */
1363 static inline struct snd_soc_dapm_context *snd_soc_codec_get_dapm(
1364         struct snd_soc_codec *codec)
1365 {
1366         return snd_soc_component_get_dapm(&codec->component);
1367 }
1368
1369 /**
1370  * snd_soc_dapm_init_bias_level() - Initialize CODEC DAPM bias level
1371  * @codec: The CODEC for which to initialize the DAPM bias level
1372  * @level: The DAPM level to initialize to
1373  *
1374  * Initializes the CODEC DAPM bias level. See snd_soc_dapm_init_bias_level().
1375  */
1376 static inline void snd_soc_codec_init_bias_level(struct snd_soc_codec *codec,
1377         enum snd_soc_bias_level level)
1378 {
1379         snd_soc_dapm_init_bias_level(snd_soc_codec_get_dapm(codec), level);
1380 }
1381
1382 /**
1383  * snd_soc_dapm_get_bias_level() - Get current CODEC DAPM bias level
1384  * @codec: The CODEC for which to get the DAPM bias level
1385  *
1386  * Returns: The current DAPM bias level of the CODEC.
1387  */
1388 static inline enum snd_soc_bias_level snd_soc_codec_get_bias_level(
1389         struct snd_soc_codec *codec)
1390 {
1391         return snd_soc_dapm_get_bias_level(snd_soc_codec_get_dapm(codec));
1392 }
1393
1394 /**
1395  * snd_soc_codec_force_bias_level() - Set the CODEC DAPM bias level
1396  * @codec: The CODEC for which to set the level
1397  * @level: The level to set to
1398  *
1399  * Forces the CODEC bias level to a specific state. See
1400  * snd_soc_dapm_force_bias_level().
1401  */
1402 static inline int snd_soc_codec_force_bias_level(struct snd_soc_codec *codec,
1403         enum snd_soc_bias_level level)
1404 {
1405         return snd_soc_dapm_force_bias_level(snd_soc_codec_get_dapm(codec),
1406                 level);
1407 }
1408
1409 /**
1410  * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol
1411  * @kcontrol: The kcontrol
1412  *
1413  * This function must only be used on DAPM contexts that are known to be part of
1414  * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined.
1415  */
1416 static inline struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(
1417         struct snd_kcontrol *kcontrol)
1418 {
1419         return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol));
1420 }
1421
1422 /* codec IO */
1423 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1424 int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg,
1425         unsigned int val);
1426
1427 /**
1428  * snd_soc_cache_sync() - Sync the register cache with the hardware
1429  * @codec: CODEC to sync
1430  *
1431  * Note: This function will call regcache_sync()
1432  */
1433 static inline int snd_soc_cache_sync(struct snd_soc_codec *codec)
1434 {
1435         return regcache_sync(codec->component.regmap);
1436 }
1437
1438 /* component IO */
1439 int snd_soc_component_read(struct snd_soc_component *component,
1440         unsigned int reg, unsigned int *val);
1441 int snd_soc_component_write(struct snd_soc_component *component,
1442         unsigned int reg, unsigned int val);
1443 int snd_soc_component_update_bits(struct snd_soc_component *component,
1444         unsigned int reg, unsigned int mask, unsigned int val);
1445 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
1446         unsigned int reg, unsigned int mask, unsigned int val);
1447 void snd_soc_component_async_complete(struct snd_soc_component *component);
1448 int snd_soc_component_test_bits(struct snd_soc_component *component,
1449         unsigned int reg, unsigned int mask, unsigned int value);
1450
1451 #ifdef CONFIG_REGMAP
1452
1453 void snd_soc_component_init_regmap(struct snd_soc_component *component,
1454         struct regmap *regmap);
1455 void snd_soc_component_exit_regmap(struct snd_soc_component *component);
1456
1457 /**
1458  * snd_soc_codec_init_regmap() - Initialize regmap instance for the CODEC
1459  * @codec: The CODEC for which to initialize the regmap instance
1460  * @regmap: The regmap instance that should be used by the CODEC
1461  *
1462  * This function allows deferred assignment of the regmap instance that is
1463  * associated with the CODEC. Only use this if the regmap instance is not yet
1464  * ready when the CODEC is registered. The function must also be called before
1465  * the first IO attempt of the CODEC.
1466  */
1467 static inline void snd_soc_codec_init_regmap(struct snd_soc_codec *codec,
1468         struct regmap *regmap)
1469 {
1470         snd_soc_component_init_regmap(&codec->component, regmap);
1471 }
1472
1473 /**
1474  * snd_soc_codec_exit_regmap() - De-initialize regmap instance for the CODEC
1475  * @codec: The CODEC for which to de-initialize the regmap instance
1476  *
1477  * Calls regmap_exit() on the regmap instance associated to the CODEC and
1478  * removes the regmap instance from the CODEC.
1479  *
1480  * This function should only be used if snd_soc_codec_init_regmap() was used to
1481  * initialize the regmap instance.
1482  */
1483 static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec)
1484 {
1485         snd_soc_component_exit_regmap(&codec->component);
1486 }
1487
1488 #endif
1489
1490 /* device driver data */
1491
1492 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1493                 void *data)
1494 {
1495         card->drvdata = data;
1496 }
1497
1498 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1499 {
1500         return card->drvdata;
1501 }
1502
1503 static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c,
1504                 void *data)
1505 {
1506         dev_set_drvdata(c->dev, data);
1507 }
1508
1509 static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c)
1510 {
1511         return dev_get_drvdata(c->dev);
1512 }
1513
1514 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1515                 void *data)
1516 {
1517         snd_soc_component_set_drvdata(&codec->component, data);
1518 }
1519
1520 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1521 {
1522         return snd_soc_component_get_drvdata(&codec->component);
1523 }
1524
1525 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1526                 void *data)
1527 {
1528         snd_soc_component_set_drvdata(&platform->component, data);
1529 }
1530
1531 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1532 {
1533         return snd_soc_component_get_drvdata(&platform->component);
1534 }
1535
1536 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1537                 void *data)
1538 {
1539         dev_set_drvdata(rtd->dev, data);
1540 }
1541
1542 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1543 {
1544         return dev_get_drvdata(rtd->dev);
1545 }
1546
1547 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1548 {
1549         INIT_LIST_HEAD(&card->codec_dev_list);
1550         INIT_LIST_HEAD(&card->widgets);
1551         INIT_LIST_HEAD(&card->paths);
1552         INIT_LIST_HEAD(&card->dapm_list);
1553 }
1554
1555 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1556 {
1557         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1558                 return 0;
1559         /*
1560          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1561          * mc->reg != mc->rreg means that the control is
1562          * stereo (bits in one register or in two registers)
1563          */
1564         return 1;
1565 }
1566
1567 static inline unsigned int snd_soc_enum_val_to_item(struct soc_enum *e,
1568         unsigned int val)
1569 {
1570         unsigned int i;
1571
1572         if (!e->values)
1573                 return val;
1574
1575         for (i = 0; i < e->items; i++)
1576                 if (val == e->values[i])
1577                         return i;
1578
1579         return 0;
1580 }
1581
1582 static inline unsigned int snd_soc_enum_item_to_val(struct soc_enum *e,
1583         unsigned int item)
1584 {
1585         if (!e->values)
1586                 return item;
1587
1588         return e->values[item];
1589 }
1590
1591 static inline bool snd_soc_component_is_active(
1592         struct snd_soc_component *component)
1593 {
1594         return component->active != 0;
1595 }
1596
1597 static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec)
1598 {
1599         return snd_soc_component_is_active(&codec->component);
1600 }
1601
1602 /**
1603  * snd_soc_kcontrol_component() - Returns the component that registered the
1604  *  control
1605  * @kcontrol: The control for which to get the component
1606  *
1607  * Note: This function will work correctly if the control has been registered
1608  * for a component. Either with snd_soc_add_codec_controls() or
1609  * snd_soc_add_platform_controls() or via  table based setup for either a
1610  * CODEC, a platform or component driver. Otherwise the behavior is undefined.
1611  */
1612 static inline struct snd_soc_component *snd_soc_kcontrol_component(
1613         struct snd_kcontrol *kcontrol)
1614 {
1615         return snd_kcontrol_chip(kcontrol);
1616 }
1617
1618 /**
1619  * snd_soc_kcontrol_codec() - Returns the CODEC that registered the control
1620  * @kcontrol: The control for which to get the CODEC
1621  *
1622  * Note: This function will only work correctly if the control has been
1623  * registered with snd_soc_add_codec_controls() or via table based setup of
1624  * snd_soc_codec_driver. Otherwise the behavior is undefined.
1625  */
1626 static inline struct snd_soc_codec *snd_soc_kcontrol_codec(
1627         struct snd_kcontrol *kcontrol)
1628 {
1629         return snd_soc_component_to_codec(snd_soc_kcontrol_component(kcontrol));
1630 }
1631
1632 /**
1633  * snd_soc_kcontrol_platform() - Returns the platform that registered the control
1634  * @kcontrol: The control for which to get the platform
1635  *
1636  * Note: This function will only work correctly if the control has been
1637  * registered with snd_soc_add_platform_controls() or via table based setup of
1638  * a snd_soc_platform_driver. Otherwise the behavior is undefined.
1639  */
1640 static inline struct snd_soc_platform *snd_soc_kcontrol_platform(
1641         struct snd_kcontrol *kcontrol)
1642 {
1643         return snd_soc_component_to_platform(snd_soc_kcontrol_component(kcontrol));
1644 }
1645
1646 int snd_soc_util_init(void);
1647 void snd_soc_util_exit(void);
1648
1649 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1650                                const char *propname);
1651 int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
1652                                           const char *propname);
1653 int snd_soc_of_parse_tdm_slot(struct device_node *np,
1654                               unsigned int *tx_mask,
1655                               unsigned int *rx_mask,
1656                               unsigned int *slots,
1657                               unsigned int *slot_width);
1658 void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card,
1659                                    struct snd_soc_codec_conf *codec_conf,
1660                                    struct device_node *of_node,
1661                                    const char *propname);
1662 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1663                                    const char *propname);
1664 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
1665                                      const char *prefix,
1666                                      struct device_node **bitclkmaster,
1667                                      struct device_node **framemaster);
1668 int snd_soc_of_get_dai_name(struct device_node *of_node,
1669                             const char **dai_name);
1670 int snd_soc_of_get_dai_link_codecs(struct device *dev,
1671                                    struct device_node *of_node,
1672                                    struct snd_soc_dai_link *dai_link);
1673
1674 int snd_soc_add_dai_link(struct snd_soc_card *card,
1675                                 struct snd_soc_dai_link *dai_link);
1676 void snd_soc_remove_dai_link(struct snd_soc_card *card,
1677                              struct snd_soc_dai_link *dai_link);
1678
1679 #include <sound/soc-dai.h>
1680
1681 #ifdef CONFIG_DEBUG_FS
1682 extern struct dentry *snd_soc_debugfs_root;
1683 #endif
1684
1685 extern const struct dev_pm_ops snd_soc_pm_ops;
1686
1687 /* Helper functions */
1688 static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm)
1689 {
1690         mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
1691 }
1692
1693 static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm)
1694 {
1695         mutex_unlock(&dapm->card->dapm_mutex);
1696 }
1697
1698 #endif