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