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, \
  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, \
 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 int snd_soc_suspend(struct device *dev);
 391 int snd_soc_resume(struct device *dev);
 392 int snd_soc_poweroff(struct device *dev);
 393 int snd_soc_register_platform(struct device *dev,
 394                 const struct snd_soc_platform_driver *platform_drv);
 395 int devm_snd_soc_register_platform(struct device *dev,
 396                 const struct snd_soc_platform_driver *platform_drv);
 397 void snd_soc_unregister_platform(struct device *dev);
 398 int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
 399                 const struct snd_soc_platform_driver *platform_drv);
 400 void snd_soc_remove_platform(struct snd_soc_platform *platform);
 401 struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev);
 402 int snd_soc_register_codec(struct device *dev,
 403                 const struct snd_soc_codec_driver *codec_drv,
 404                 struct snd_soc_dai_driver *dai_drv, int num_dai);
 405 void snd_soc_unregister_codec(struct device *dev);
 406 int snd_soc_register_component(struct device *dev,
 407                          const struct snd_soc_component_driver *cmpnt_drv,
 408                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 409 int devm_snd_soc_register_component(struct device *dev,
 410                          const struct snd_soc_component_driver *cmpnt_drv,
 411                          struct snd_soc_dai_driver *dai_drv, int num_dai);
 412 void snd_soc_unregister_component(struct device *dev);
 413 int snd_soc_cache_init(struct snd_soc_codec *codec);
 414 int snd_soc_cache_exit(struct snd_soc_codec *codec);
 415
 416 int snd_soc_platform_read(struct snd_soc_platform *platform,
 417                                         unsigned int reg);
 418 int snd_soc_platform_write(struct snd_soc_platform *platform,
 419                                         unsigned int reg, unsigned int val);
 420 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
 421 int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
 422
 423 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
 424                 const char *dai_link, int stream);
 425 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 426                 const char *dai_link);
 427
 428 bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd);
 429 void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream);
 430 void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream);
 431
 432 /* Utility functions to get clock rates from various things */
 433 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
 434 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
 435 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
 436 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
 437
 438 /* set runtime hw params */
 439 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
 440         const struct snd_pcm_hardware *hw);
 441
 442 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 443                 int cmd, struct snd_soc_platform *platform);
 444
 445 int soc_dai_hw_params(struct snd_pcm_substream *substream,
 446                       struct snd_pcm_hw_params *params,
 447                       struct snd_soc_dai *dai);
 448
 449 /* Jack reporting */
 450 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
 451                      struct snd_soc_jack *jack);
 452 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
 453 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
 454                           struct snd_soc_jack_pin *pins);
 455 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
 456                                     struct notifier_block *nb);
 457 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
 458                                       struct notifier_block *nb);
 459 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
 460                           struct snd_soc_jack_zone *zones);
 461 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
 462 #ifdef CONFIG_GPIOLIB
 463 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 464                         struct snd_soc_jack_gpio *gpios);
 465 int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
 466                             struct snd_soc_jack *jack,
 467                             int count, struct snd_soc_jack_gpio *gpios);
 468 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 469                         struct snd_soc_jack_gpio *gpios);
 470 #else
 471 static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
 472                                          struct snd_soc_jack_gpio *gpios)
 473 {
 474         return 0;
 475 }
 476
 477 static inline int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
 478                                           struct snd_soc_jack *jack,
 479                                           int count,
 480                                           struct snd_soc_jack_gpio *gpios)
 481 {
 482         return 0;
 483 }
 484
 485 static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
 486                                            struct snd_soc_jack_gpio *gpios)
 487 {
 488 }
 489 #endif
 490
 491 /* codec register bit access */
 492 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned int reg,
 493                                 unsigned int mask, unsigned int value);
 494 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
 495                                unsigned int reg, unsigned int mask,
 496                                unsigned int value);
 497 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg,
 498                                 unsigned int mask, unsigned int value);
 499
 500 #ifdef CONFIG_SND_SOC_AC97_BUS
 501 struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec);
 502 void snd_soc_free_ac97_codec(struct snd_ac97 *ac97);
 503
 504 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
 505 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
 506                 struct platform_device *pdev);
 507
 508 extern struct snd_ac97_bus_ops *soc_ac97_ops;
 509 #else
 510 static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
 511         struct platform_device *pdev)
 512 {
 513         return 0;
 514 }
 515
 516 static inline int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
 517 {
 518         return 0;
 519 }
 520 #endif
 521
 522 /*
 523  *Controls
 524  */
 525 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
 526                                   void *data, const char *long_name,
 527                                   const char *prefix);
 528 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
 529                                                const char *name);
 530 int snd_soc_add_component_controls(struct snd_soc_component *component,
 531         const struct snd_kcontrol_new *controls, unsigned int num_controls);
 532 int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
 533         const struct snd_kcontrol_new *controls, unsigned int num_controls);
 534 int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
 535         const struct snd_kcontrol_new *controls, unsigned int num_controls);
 536 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
 537         const struct snd_kcontrol_new *controls, int num_controls);
 538 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
 539         const struct snd_kcontrol_new *controls, int num_controls);
 540 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 541         struct snd_ctl_elem_info *uinfo);
 542 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
 543         struct snd_ctl_elem_value *ucontrol);
 544 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
 545         struct snd_ctl_elem_value *ucontrol);
 546 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
 547         struct snd_ctl_elem_info *uinfo);
 548 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 549 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
 550         struct snd_ctl_elem_value *ucontrol);
 551 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 552         struct snd_ctl_elem_value *ucontrol);
 553 #define snd_soc_get_volsw_2r snd_soc_get_volsw
 554 #define snd_soc_put_volsw_2r snd_soc_put_volsw
 555 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 556         struct snd_ctl_elem_value *ucontrol);
 557 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 558         struct snd_ctl_elem_value *ucontrol);
 559 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
 560         struct snd_ctl_elem_info *uinfo);
 561 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 562         struct snd_ctl_elem_value *ucontrol);
 563 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
 564         struct snd_ctl_elem_value *ucontrol);
 565 int snd_soc_limit_volume(struct snd_soc_codec *codec,
 566         const char *name, int max);
 567 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
 568                        struct snd_ctl_elem_info *uinfo);
 569 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 570                       struct snd_ctl_elem_value *ucontrol);
 571 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 572                       struct snd_ctl_elem_value *ucontrol);
 573 int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol,
 574         struct snd_ctl_elem_info *ucontrol);
 575 int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag,
 576         unsigned int size, unsigned int __user *tlv);
 577 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
 578         struct snd_ctl_elem_info *uinfo);
 579 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
 580         struct snd_ctl_elem_value *ucontrol);
 581 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 582         struct snd_ctl_elem_value *ucontrol);
 583 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 584         struct snd_ctl_elem_value *ucontrol);
 585 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 586         struct snd_ctl_elem_value *ucontrol);
 587
 588 /**
 589  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
 590  *
 591  * @pin:    name of the pin to update
 592  * @mask:   bits to check for in reported jack status
 593  * @invert: if non-zero then pin is enabled when status is not reported
 594  */
 595 struct snd_soc_jack_pin {
 596         struct list_head list;
 597         const char *pin;
 598         int mask;
 599         bool invert;
 600 };
 601
 602 /**
 603  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
 604  *
 605  * @min_mv: start voltage in mv
 606  * @max_mv: end voltage in mv
 607  * @jack_type: type of jack that is expected for this voltage
 608  * @debounce_time: debounce_time for jack, codec driver should wait for this
 609  *              duration before reading the adc for voltages
 610  * @:list: list container
 611  */
 612 struct snd_soc_jack_zone {
 613         unsigned int min_mv;
 614         unsigned int max_mv;
 615         unsigned int jack_type;
 616         unsigned int debounce_time;
 617         struct list_head list;
 618 };
 619
 620 /**
 621  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
 622  *
 623  * @gpio:         legacy gpio number
 624  * @idx:          gpio descriptor index within the function of the GPIO
 625  *                consumer device
 626  * @gpiod_dev     GPIO consumer device
 627  * @name:         gpio name. Also as connection ID for the GPIO consumer
 628  *                device function name lookup
 629  * @report:       value to report when jack detected
 630  * @invert:       report presence in low state
 631  * @debouce_time: debouce time in ms
 632  * @wake:         enable as wake source
 633  * @jack_status_check: callback function which overrides the detection
 634  *                     to provide more complex checks (eg, reading an
 635  *                     ADC).
 636  */
 637 struct snd_soc_jack_gpio {
 638         unsigned int gpio;
 639         unsigned int idx;
 640         struct device *gpiod_dev;
 641         const char *name;
 642         int report;
 643         int invert;
 644         int debounce_time;
 645         bool wake;
 646
 647         struct snd_soc_jack *jack;
 648         struct delayed_work work;
 649         struct gpio_desc *desc;
 650
 651         void *data;
 652         int (*jack_status_check)(void *data);
 653 };
 654
 655 struct snd_soc_jack {
 656         struct mutex mutex;
 657         struct snd_jack *jack;
 658         struct snd_soc_codec *codec;
 659         struct list_head pins;
 660         int status;
 661         struct blocking_notifier_head notifier;
 662         struct list_head jack_zones;
 663 };
 664
 665 /* SoC PCM stream information */
 666 struct snd_soc_pcm_stream {
 667         const char *stream_name;
 668         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
 669         unsigned int rates;             /* SNDRV_PCM_RATE_* */
 670         unsigned int rate_min;          /* min rate */
 671         unsigned int rate_max;          /* max rate */
 672         unsigned int channels_min;      /* min channels */
 673         unsigned int channels_max;      /* max channels */
 674         unsigned int sig_bits;          /* number of bits of content */
 675 };
 676
 677 /* SoC audio ops */
 678 struct snd_soc_ops {
 679         int (*startup)(struct snd_pcm_substream *);
 680         void (*shutdown)(struct snd_pcm_substream *);
 681         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
 682         int (*hw_free)(struct snd_pcm_substream *);
 683         int (*prepare)(struct snd_pcm_substream *);
 684         int (*trigger)(struct snd_pcm_substream *, int);
 685 };
 686
 687 struct snd_soc_compr_ops {
 688         int (*startup)(struct snd_compr_stream *);
 689         void (*shutdown)(struct snd_compr_stream *);
 690         int (*set_params)(struct snd_compr_stream *);
 691         int (*trigger)(struct snd_compr_stream *);
 692 };
 693
 694 /* component interface */
 695 struct snd_soc_component_driver {
 696         const char *name;
 697
 698         /* Default control and setup, added after probe() is run */
 699         const struct snd_kcontrol_new *controls;
 700         unsigned int num_controls;
 701         const struct snd_soc_dapm_widget *dapm_widgets;
 702         unsigned int num_dapm_widgets;
 703         const struct snd_soc_dapm_route *dapm_routes;
 704         unsigned int num_dapm_routes;
 705
 706         int (*probe)(struct snd_soc_component *);
 707         void (*remove)(struct snd_soc_component *);
 708
 709         /* DT */
 710         int (*of_xlate_dai_name)(struct snd_soc_component *component,
 711                                  struct of_phandle_args *args,
 712                                  const char **dai_name);
 713         void (*seq_notifier)(struct snd_soc_component *, enum snd_soc_dapm_type,
 714                 int subseq);
 715         int (*stream_event)(struct snd_soc_component *, int event);
 716
 717         /* probe ordering - for components with runtime dependencies */
 718         int probe_order;
 719         int remove_order;
 720 };
 721
 722 struct snd_soc_component {
 723         const char *name;
 724         int id;
 725         const char *name_prefix;
 726         struct device *dev;
 727         struct snd_soc_card *card;
 728
 729         unsigned int active;
 730
 731         unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
 732         unsigned int registered_as_component:1;
 733         unsigned int probed:1;
 734
 735         struct list_head list;
 736
 737         struct snd_soc_dai_driver *dai_drv;
 738         int num_dai;
 739
 740         const struct snd_soc_component_driver *driver;
 741
 742         struct list_head dai_list;
 743
 744         int (*read)(struct snd_soc_component *, unsigned int, unsigned int *);
 745         int (*write)(struct snd_soc_component *, unsigned int, unsigned int);
 746
 747         struct regmap *regmap;
 748         int val_bytes;
 749
 750         struct mutex io_mutex;
 751
 752 #ifdef CONFIG_DEBUG_FS
 753         struct dentry *debugfs_root;
 754 #endif
 755
 756         /*
 757         * DO NOT use any of the fields below in drivers, they are temporary and
 758         * are going to be removed again soon. If you use them in driver code the
 759         * driver will be marked as BROKEN when these fields are removed.
 760         */
 761
 762         /* Don't use these, use snd_soc_component_get_dapm() */
 763         struct snd_soc_dapm_context dapm;
 764         struct snd_soc_dapm_context *dapm_ptr;
 765
 766         const struct snd_kcontrol_new *controls;
 767         unsigned int num_controls;
 768         const struct snd_soc_dapm_widget *dapm_widgets;
 769         unsigned int num_dapm_widgets;
 770         const struct snd_soc_dapm_route *dapm_routes;
 771         unsigned int num_dapm_routes;
 772         struct snd_soc_codec *codec;
 773
 774         int (*probe)(struct snd_soc_component *);
 775         void (*remove)(struct snd_soc_component *);
 776
 777 #ifdef CONFIG_DEBUG_FS
 778         void (*init_debugfs)(struct snd_soc_component *component);
 779         const char *debugfs_prefix;
 780 #endif
 781 };
 782
 783 /* SoC Audio Codec device */
 784 struct snd_soc_codec {
 785         struct device *dev;
 786         const struct snd_soc_codec_driver *driver;
 787
 788         struct list_head list;
 789         struct list_head card_list;
 790
 791         /* runtime */
 792         unsigned int cache_bypass:1; /* Suppress access to the cache */
 793         unsigned int suspended:1; /* Codec is in suspend PM state */
 794         unsigned int cache_init:1; /* codec cache has been initialized */
 795
 796         /* codec IO */
 797         void *control_data; /* codec control (i2c/3wire) data */
 798         hw_write_t hw_write;
 799         void *reg_cache;
 800
 801         /* component */
 802         struct snd_soc_component component;
 803
 804         /* dapm */
 805         struct snd_soc_dapm_context dapm;
 806
 807 #ifdef CONFIG_DEBUG_FS
 808         struct dentry *debugfs_reg;
 809 #endif
 810 };
 811
 812 /* codec driver */
 813 struct snd_soc_codec_driver {
 814
 815         /* driver ops */
 816         int (*probe)(struct snd_soc_codec *);
 817         int (*remove)(struct snd_soc_codec *);
 818         int (*suspend)(struct snd_soc_codec *);
 819         int (*resume)(struct snd_soc_codec *);
 820         struct snd_soc_component_driver component_driver;
 821
 822         /* Default control and setup, added after probe() is run */
 823         const struct snd_kcontrol_new *controls;
 824         int num_controls;
 825         const struct snd_soc_dapm_widget *dapm_widgets;
 826         int num_dapm_widgets;
 827         const struct snd_soc_dapm_route *dapm_routes;
 828         int num_dapm_routes;
 829
 830         /* codec wide operations */
 831         int (*set_sysclk)(struct snd_soc_codec *codec,
 832                           int clk_id, int source, unsigned int freq, int dir);
 833         int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source,
 834                 unsigned int freq_in, unsigned int freq_out);
 835
 836         /* codec IO */
 837         struct regmap *(*get_regmap)(struct device *);
 838         unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 839         int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 840         unsigned int reg_cache_size;
 841         short reg_cache_step;
 842         short reg_word_size;
 843         const void *reg_cache_default;
 844
 845         /* codec bias level */
 846         int (*set_bias_level)(struct snd_soc_codec *,
 847                               enum snd_soc_bias_level level);
 848         bool idle_bias_off;
 849         bool suspend_bias_off;
 850
 851         void (*seq_notifier)(struct snd_soc_dapm_context *,
 852                              enum snd_soc_dapm_type, int);
 853
 854         bool ignore_pmdown_time;  /* Doesn't benefit from pmdown delay */
 855 };
 856
 857 /* SoC platform interface */
 858 struct snd_soc_platform_driver {
 859
 860         int (*probe)(struct snd_soc_platform *);
 861         int (*remove)(struct snd_soc_platform *);
 862         struct snd_soc_component_driver component_driver;
 863
 864         /* pcm creation and destruction */
 865         int (*pcm_new)(struct snd_soc_pcm_runtime *);
 866         void (*pcm_free)(struct snd_pcm *);
 867
 868         /*
 869          * For platform caused delay reporting.
 870          * Optional.
 871          */
 872         snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
 873                 struct snd_soc_dai *);
 874
 875         /* platform stream pcm ops */
 876         const struct snd_pcm_ops *ops;
 877
 878         /* platform stream compress ops */
 879         const struct snd_compr_ops *compr_ops;
 880
 881         int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 882 };
 883
 884 struct snd_soc_dai_link_component {
 885         const char *name;
 886         struct device_node *of_node;
 887         const char *dai_name;
 888 };
 889
 890 struct snd_soc_platform {
 891         struct device *dev;
 892         const struct snd_soc_platform_driver *driver;
 893
 894         struct list_head list;
 895
 896         struct snd_soc_component component;
 897 };
 898
 899 struct snd_soc_dai_link {
 900         /* config - must be set by machine driver */
 901         const char *name;                       /* Codec name */
 902         const char *stream_name;                /* Stream name */
 903         /*
 904          * You MAY specify the link's CPU-side device, either by device name,
 905          * or by DT/OF node, but not both. If this information is omitted,
 906          * the CPU-side DAI is matched using .cpu_dai_name only, which hence
 907          * must be globally unique. These fields are currently typically used
 908          * only for codec to codec links, or systems using device tree.
 909          */
 910         const char *cpu_name;
 911         struct device_node *cpu_of_node;
 912         /*
 913          * You MAY specify the DAI name of the CPU DAI. If this information is
 914          * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
 915          * only, which only works well when that device exposes a single DAI.
 916          */
 917         const char *cpu_dai_name;
 918         /*
 919          * You MUST specify the link's codec, either by device name, or by
 920          * DT/OF node, but not both.
 921          */
 922         const char *codec_name;
 923         struct device_node *codec_of_node;
 924         /* You MUST specify the DAI name within the codec */
 925         const char *codec_dai_name;
 926
 927         struct snd_soc_dai_link_component *codecs;
 928         unsigned int num_codecs;
 929
 930         /*
 931          * You MAY specify the link's platform/PCM/DMA driver, either by
 932          * device name, or by DT/OF node, but not both. Some forms of link
 933          * do not need a platform.
 934          */
 935         const char *platform_name;
 936         struct device_node *platform_of_node;
 937         int be_id;      /* optional ID for machine driver BE identification */
 938
 939         const struct snd_soc_pcm_stream *params;
 940
 941         unsigned int dai_fmt;           /* format to set on init */
 942
 943         enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
 944
 945         /* Keep DAI active over suspend */
 946         unsigned int ignore_suspend:1;
 947
 948         /* Symmetry requirements */
 949         unsigned int symmetric_rates:1;
 950         unsigned int symmetric_channels:1;
 951         unsigned int symmetric_samplebits:1;
 952
 953         /* Do not create a PCM for this DAI link (Backend link) */
 954         unsigned int no_pcm:1;
 955
 956         /* This DAI link can route to other DAI links at runtime (Frontend)*/
 957         unsigned int dynamic:1;
 958
 959         /* DPCM capture and Playback support */
 960         unsigned int dpcm_capture:1;
 961         unsigned int dpcm_playback:1;
 962
 963         /* pmdown_time is ignored at stop */
 964         unsigned int ignore_pmdown_time:1;
 965
 966         /* codec/machine specific init - e.g. add machine controls */
 967         int (*init)(struct snd_soc_pcm_runtime *rtd);
 968
 969         /* optional hw_params re-writing for BE and FE sync */
 970         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 971                         struct snd_pcm_hw_params *params);
 972
 973         /* machine stream operations */
 974         const struct snd_soc_ops *ops;
 975         const struct snd_soc_compr_ops *compr_ops;
 976
 977         /* For unidirectional dai links */
 978         bool playback_only;
 979         bool capture_only;
 980 };
 981
 982 struct snd_soc_codec_conf {
 983         /*
 984          * specify device either by device name, or by
 985          * DT/OF node, but not both.
 986          */
 987         const char *dev_name;
 988         struct device_node *of_node;
 989
 990         /*
 991          * optional map of kcontrol, widget and path name prefixes that are
 992          * associated per device
 993          */
 994         const char *name_prefix;
 995 };
 996
 997 struct snd_soc_aux_dev {
 998         const char *name;               /* Codec name */
 999
1000         /*
1001          * specify multi-codec either by device name, or by
1002          * DT/OF node, but not both.
1003          */
1004         const char *codec_name;
1005         struct device_node *codec_of_node;
1006
1007         /* codec/machine specific init - e.g. add machine controls */
1008         int (*init)(struct snd_soc_component *component);
1009 };
1010
1011 /* SoC card */
1012 struct snd_soc_card {
1013         const char *name;
1014         const char *long_name;
1015         const char *driver_name;
1016         struct device *dev;
1017         struct snd_card *snd_card;
1018         struct module *owner;
1019
1020         struct mutex mutex;
1021         struct mutex dapm_mutex;
1022
1023         bool instantiated;
1024
1025         int (*probe)(struct snd_soc_card *card);
1026         int (*late_probe)(struct snd_soc_card *card);
1027         int (*remove)(struct snd_soc_card *card);
1028
1029         /* the pre and post PM functions are used to do any PM work before and
1030          * after the codec and DAI's do any PM work. */
1031         int (*suspend_pre)(struct snd_soc_card *card);
1032         int (*suspend_post)(struct snd_soc_card *card);
1033         int (*resume_pre)(struct snd_soc_card *card);
1034         int (*resume_post)(struct snd_soc_card *card);
1035
1036         /* callbacks */
1037         int (*set_bias_level)(struct snd_soc_card *,
1038                               struct snd_soc_dapm_context *dapm,
1039                               enum snd_soc_bias_level level);
1040         int (*set_bias_level_post)(struct snd_soc_card *,
1041                                    struct snd_soc_dapm_context *dapm,
1042                                    enum snd_soc_bias_level level);
1043
1044         long pmdown_time;
1045
1046         /* CPU <--> Codec DAI links  */
1047         struct snd_soc_dai_link *dai_link;
1048         int num_links;
1049         struct snd_soc_pcm_runtime *rtd;
1050         int num_rtd;
1051
1052         /* optional codec specific configuration */
1053         struct snd_soc_codec_conf *codec_conf;
1054         int num_configs;
1055
1056         /*
1057          * optional auxiliary devices such as amplifiers or codecs with DAI
1058          * link unused
1059          */
1060         struct snd_soc_aux_dev *aux_dev;
1061         int num_aux_devs;
1062         struct snd_soc_pcm_runtime *rtd_aux;
1063         int num_aux_rtd;
1064
1065         const struct snd_kcontrol_new *controls;
1066         int num_controls;
1067
1068         /*
1069          * Card-specific routes and widgets.
1070          */
1071         const struct snd_soc_dapm_widget *dapm_widgets;
1072         int num_dapm_widgets;
1073         const struct snd_soc_dapm_route *dapm_routes;
1074         int num_dapm_routes;
1075         bool fully_routed;
1076
1077         struct work_struct deferred_resume_work;
1078
1079         /* lists of probed devices belonging to this card */
1080         struct list_head codec_dev_list;
1081
1082         struct list_head widgets;
1083         struct list_head paths;
1084         struct list_head dapm_list;
1085         struct list_head dapm_dirty;
1086
1087         /* Generic DAPM context for the card */
1088         struct snd_soc_dapm_context dapm;
1089         struct snd_soc_dapm_stats dapm_stats;
1090         struct snd_soc_dapm_update *update;
1091
1092 #ifdef CONFIG_DEBUG_FS
1093         struct dentry *debugfs_card_root;
1094         struct dentry *debugfs_pop_time;
1095 #endif
1096         u32 pop_time;
1097
1098         void *drvdata;
1099 };
1100
1101 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1102 struct snd_soc_pcm_runtime {
1103         struct device *dev;
1104         struct snd_soc_card *card;
1105         struct snd_soc_dai_link *dai_link;
1106         struct mutex pcm_mutex;
1107         enum snd_soc_pcm_subclass pcm_subclass;
1108         struct snd_pcm_ops ops;
1109
1110         unsigned int dev_registered:1;
1111
1112         /* Dynamic PCM BE runtime data */
1113         struct snd_soc_dpcm_runtime dpcm[2];
1114         int fe_compr;
1115
1116         long pmdown_time;
1117         unsigned char pop_wait:1;
1118
1119         /* runtime devices */
1120         struct snd_pcm *pcm;
1121         struct snd_compr *compr;
1122         struct snd_soc_codec *codec;
1123         struct snd_soc_platform *platform;
1124         struct snd_soc_dai *codec_dai;
1125         struct snd_soc_dai *cpu_dai;
1126         struct snd_soc_component *component; /* Only valid for AUX dev rtds */
1127
1128         struct snd_soc_dai **codec_dais;
1129         unsigned int num_codecs;
1130
1131         struct delayed_work delayed_work;
1132 #ifdef CONFIG_DEBUG_FS
1133         struct dentry *debugfs_dpcm_root;
1134         struct dentry *debugfs_dpcm_state;
1135 #endif
1136 };
1137
1138 /* mixer control */
1139 struct soc_mixer_control {
1140         int min, max, platform_max;
1141         int reg, rreg;
1142         unsigned int shift, rshift;
1143         unsigned int sign_bit;
1144         unsigned int invert:1;
1145         unsigned int autodisable:1;
1146 };
1147
1148 struct soc_bytes {
1149         int base;
1150         int num_regs;
1151         u32 mask;
1152 };
1153
1154 struct soc_bytes_ext {
1155         int max;
1156         /* used for TLV byte control */
1157         int (*get)(unsigned int __user *bytes, unsigned int size);
1158         int (*put)(const unsigned int __user *bytes, unsigned int size);
1159 };
1160
1161 /* multi register control */
1162 struct soc_mreg_control {
1163         long min, max;
1164         unsigned int regbase, regcount, nbits, invert;
1165 };
1166
1167 /* enumerated kcontrol */
1168 struct soc_enum {
1169         int reg;
1170         unsigned char shift_l;
1171         unsigned char shift_r;
1172         unsigned int items;
1173         unsigned int mask;
1174         const char * const *texts;
1175         const unsigned int *values;
1176 };
1177
1178 /**
1179  * snd_soc_component_to_codec() - Casts a component to the CODEC it is embedded in
1180  * @component: The component to cast to a CODEC
1181  *
1182  * This function must only be used on components that are known to be CODECs.
1183  * Otherwise the behavior is undefined.
1184  */
1185 static inline struct snd_soc_codec *snd_soc_component_to_codec(
1186         struct snd_soc_component *component)
1187 {
1188         return container_of(component, struct snd_soc_codec, component);
1189 }
1190
1191 /**
1192  * snd_soc_component_to_platform() - Casts a component to the platform it is embedded in
1193  * @component: The component to cast to a platform
1194  *
1195  * This function must only be used on components that are known to be platforms.
1196  * Otherwise the behavior is undefined.
1197  */
1198 static inline struct snd_soc_platform *snd_soc_component_to_platform(
1199         struct snd_soc_component *component)
1200 {
1201         return container_of(component, struct snd_soc_platform, component);
1202 }
1203
1204 /**
1205  * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is
1206  *  embedded in
1207  * @dapm: The DAPM context to cast to the component
1208  *
1209  * This function must only be used on DAPM contexts that are known to be part of
1210  * a component (e.g. in a component driver). Otherwise the behavior is
1211  * undefined.
1212  */
1213 static inline struct snd_soc_component *snd_soc_dapm_to_component(
1214         struct snd_soc_dapm_context *dapm)
1215 {
1216         return container_of(dapm, struct snd_soc_component, dapm);
1217 }
1218
1219 /**
1220  * snd_soc_dapm_to_codec() - Casts a DAPM context to the CODEC it is embedded in
1221  * @dapm: The DAPM context to cast to the CODEC
1222  *
1223  * This function must only be used on DAPM contexts that are known to be part of
1224  * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined.
1225  */
1226 static inline struct snd_soc_codec *snd_soc_dapm_to_codec(
1227         struct snd_soc_dapm_context *dapm)
1228 {
1229         return container_of(dapm, struct snd_soc_codec, dapm);
1230 }
1231
1232 /**
1233  * snd_soc_dapm_to_platform() - Casts a DAPM context to the platform it is
1234  *  embedded in
1235  * @dapm: The DAPM context to cast to the platform.
1236  *
1237  * This function must only be used on DAPM contexts that are known to be part of
1238  * a platform (e.g. in a platform driver). Otherwise the behavior is undefined.
1239  */
1240 static inline struct snd_soc_platform *snd_soc_dapm_to_platform(
1241         struct snd_soc_dapm_context *dapm)
1242 {
1243         return snd_soc_component_to_platform(snd_soc_dapm_to_component(dapm));
1244 }
1245
1246 /**
1247  * snd_soc_component_get_dapm() - Returns the DAPM context associated with a
1248  *  component
1249  * @component: The component for which to get the DAPM context
1250  */
1251 static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm(
1252         struct snd_soc_component *component)
1253 {
1254         return component->dapm_ptr;
1255 }
1256
1257 /* codec IO */
1258 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
1259 int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg,
1260         unsigned int val);
1261
1262 /**
1263  * snd_soc_cache_sync() - Sync the register cache with the hardware
1264  * @codec: CODEC to sync
1265  *
1266  * Note: This function will call regcache_sync()
1267  */
1268 static inline int snd_soc_cache_sync(struct snd_soc_codec *codec)
1269 {
1270         return regcache_sync(codec->component.regmap);
1271 }
1272
1273 /* component IO */
1274 int snd_soc_component_read(struct snd_soc_component *component,
1275         unsigned int reg, unsigned int *val);
1276 int snd_soc_component_write(struct snd_soc_component *component,
1277         unsigned int reg, unsigned int val);
1278 int snd_soc_component_update_bits(struct snd_soc_component *component,
1279         unsigned int reg, unsigned int mask, unsigned int val);
1280 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
1281         unsigned int reg, unsigned int mask, unsigned int val);
1282 void snd_soc_component_async_complete(struct snd_soc_component *component);
1283 int snd_soc_component_test_bits(struct snd_soc_component *component,
1284         unsigned int reg, unsigned int mask, unsigned int value);
1285
1286 #ifdef CONFIG_REGMAP
1287
1288 void snd_soc_component_init_regmap(struct snd_soc_component *component,
1289         struct regmap *regmap);
1290 void snd_soc_component_exit_regmap(struct snd_soc_component *component);
1291
1292 /**
1293  * snd_soc_codec_init_regmap() - Initialize regmap instance for the CODEC
1294  * @codec: The CODEC for which to initialize the regmap instance
1295  * @regmap: The regmap instance that should be used by the CODEC
1296  *
1297  * This function allows deferred assignment of the regmap instance that is
1298  * associated with the CODEC. Only use this if the regmap instance is not yet
1299  * ready when the CODEC is registered. The function must also be called before
1300  * the first IO attempt of the CODEC.
1301  */
1302 static inline void snd_soc_codec_init_regmap(struct snd_soc_codec *codec,
1303         struct regmap *regmap)
1304 {
1305         snd_soc_component_init_regmap(&codec->component, regmap);
1306 }
1307
1308 /**
1309  * snd_soc_codec_exit_regmap() - De-initialize regmap instance for the CODEC
1310  * @codec: The CODEC for which to de-initialize the regmap instance
1311  *
1312  * Calls regmap_exit() on the regmap instance associated to the CODEC and
1313  * removes the regmap instance from the CODEC.
1314  *
1315  * This function should only be used if snd_soc_codec_init_regmap() was used to
1316  * initialize the regmap instance.
1317  */
1318 static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec)
1319 {
1320         snd_soc_component_exit_regmap(&codec->component);
1321 }
1322
1323 #endif
1324
1325 /* device driver data */
1326
1327 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1328                 void *data)
1329 {
1330         card->drvdata = data;
1331 }
1332
1333 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1334 {
1335         return card->drvdata;
1336 }
1337
1338 static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c,
1339                 void *data)
1340 {
1341         dev_set_drvdata(c->dev, data);
1342 }
1343
1344 static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c)
1345 {
1346         return dev_get_drvdata(c->dev);
1347 }
1348
1349 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
1350                 void *data)
1351 {
1352         snd_soc_component_set_drvdata(&codec->component, data);
1353 }
1354
1355 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
1356 {
1357         return snd_soc_component_get_drvdata(&codec->component);
1358 }
1359
1360 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
1361                 void *data)
1362 {
1363         snd_soc_component_set_drvdata(&platform->component, data);
1364 }
1365
1366 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
1367 {
1368         return snd_soc_component_get_drvdata(&platform->component);
1369 }
1370
1371 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
1372                 void *data)
1373 {
1374         dev_set_drvdata(rtd->dev, data);
1375 }
1376
1377 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
1378 {
1379         return dev_get_drvdata(rtd->dev);
1380 }
1381
1382 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1383 {
1384         INIT_LIST_HEAD(&card->codec_dev_list);
1385         INIT_LIST_HEAD(&card->widgets);
1386         INIT_LIST_HEAD(&card->paths);
1387         INIT_LIST_HEAD(&card->dapm_list);
1388 }
1389
1390 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1391 {
1392         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1393                 return 0;
1394         /*
1395          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1396          * mc->reg != mc->rreg means that the control is
1397          * stereo (bits in one register or in two registers)
1398          */
1399         return 1;
1400 }
1401
1402 static inline unsigned int snd_soc_enum_val_to_item(struct soc_enum *e,
1403         unsigned int val)
1404 {
1405         unsigned int i;
1406
1407         if (!e->values)
1408                 return val;
1409
1410         for (i = 0; i < e->items; i++)
1411                 if (val == e->values[i])
1412                         return i;
1413
1414         return 0;
1415 }
1416
1417 static inline unsigned int snd_soc_enum_item_to_val(struct soc_enum *e,
1418         unsigned int item)
1419 {
1420         if (!e->values)
1421                 return item;
1422
1423         return e->values[item];
1424 }
1425
1426 static inline bool snd_soc_component_is_active(
1427         struct snd_soc_component *component)
1428 {
1429         return component->active != 0;
1430 }
1431
1432 static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec)
1433 {
1434         return snd_soc_component_is_active(&codec->component);
1435 }
1436
1437 /**
1438  * snd_soc_kcontrol_component() - Returns the component that registered the
1439  *  control
1440  * @kcontrol: The control for which to get the component
1441  *
1442  * Note: This function will work correctly if the control has been registered
1443  * for a component. Either with snd_soc_add_codec_controls() or
1444  * snd_soc_add_platform_controls() or via  table based setup for either a
1445  * CODEC, a platform or component driver. Otherwise the behavior is undefined.
1446  */
1447 static inline struct snd_soc_component *snd_soc_kcontrol_component(
1448         struct snd_kcontrol *kcontrol)
1449 {
1450         return snd_kcontrol_chip(kcontrol);
1451 }
1452
1453 /**
1454  * snd_soc_kcontrol_codec() - Returns the CODEC that registered the control
1455  * @kcontrol: The control for which to get the CODEC
1456  *
1457  * Note: This function will only work correctly if the control has been
1458  * registered with snd_soc_add_codec_controls() or via table based setup of
1459  * snd_soc_codec_driver. Otherwise the behavior is undefined.
1460  */
1461 static inline struct snd_soc_codec *snd_soc_kcontrol_codec(
1462         struct snd_kcontrol *kcontrol)
1463 {
1464         return snd_soc_component_to_codec(snd_soc_kcontrol_component(kcontrol));
1465 }
1466
1467 /**
1468  * snd_soc_kcontrol_platform() - Returns the platform that registerd the control
1469  * @kcontrol: The control for which to get the platform
1470  *
1471  * Note: This function will only work correctly if the control has been
1472  * registered with snd_soc_add_platform_controls() or via table based setup of
1473  * a snd_soc_platform_driver. Otherwise the behavior is undefined.
1474  */
1475 static inline struct snd_soc_platform *snd_soc_kcontrol_platform(
1476         struct snd_kcontrol *kcontrol)
1477 {
1478         return snd_soc_component_to_platform(snd_soc_kcontrol_component(kcontrol));
1479 }
1480
1481 int snd_soc_util_init(void);
1482 void snd_soc_util_exit(void);
1483
1484 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1485                                const char *propname);
1486 int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
1487                                           const char *propname);
1488 int snd_soc_of_parse_tdm_slot(struct device_node *np,
1489                               unsigned int *slots,
1490                               unsigned int *slot_width);
1491 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1492                                    const char *propname);
1493 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
1494                                      const char *prefix,
1495                                      struct device_node **bitclkmaster,
1496                                      struct device_node **framemaster);
1497 int snd_soc_of_get_dai_name(struct device_node *of_node,
1498                             const char **dai_name);
1499 int snd_soc_of_get_dai_link_codecs(struct device *dev,
1500                                    struct device_node *of_node,
1501                                    struct snd_soc_dai_link *dai_link);
1502
1503 #include <sound/soc-dai.h>
1504
1505 #ifdef CONFIG_DEBUG_FS
1506 extern struct dentry *snd_soc_debugfs_root;
1507 #endif
1508
1509 extern const struct dev_pm_ops snd_soc_pm_ops;
1510
1511 /* Helper functions */
1512 static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm)
1513 {
1514         mutex_lock(&dapm->card->dapm_mutex);
1515 }
1516
1517 static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm)
1518 {
1519         mutex_unlock(&dapm->card->dapm_mutex);
1520 }
1521
1522 #endif