include/uapi/sound/asoc.h

   1 /*
   2  * uapi/sound/asoc.h -- ALSA SoC Firmware Controls and DAPM
   3  *
   4  * Copyright (C) 2012 Texas Instruments Inc.
   5  * Copyright (C) 2015 Intel Corporation.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * Simple file API to load FW that includes mixers, coefficients, DAPM graphs,
  12  * algorithms, equalisers, DAIs, widgets etc.
  13 */
  14
  15 #ifndef __LINUX_UAPI_SND_ASOC_H
  16 #define __LINUX_UAPI_SND_ASOC_H
  17
  18 #include <linux/types.h>
  19 #include <sound/asound.h>
  20
  21 #ifndef __KERNEL__
  22 #error This API is an early revision and not enabled in the current
  23 #error kernel release, it will be enabled in a future kernel version
  24 #error with incompatible changes to what is here.
  25 #endif
  26
  27 /*
  28  * Maximum number of channels topology kcontrol can represent.
  29  */
  30 #define SND_SOC_TPLG_MAX_CHAN           8
  31
  32 /*
  33  * Maximum number of PCM formats capability
  34  */
  35 #define SND_SOC_TPLG_MAX_FORMATS        16
  36
  37 /*
  38  * Maximum number of PCM stream configs
  39  */
  40 #define SND_SOC_TPLG_STREAM_CONFIG_MAX  8
  41
  42 /* individual kcontrol info types - can be mixed with other types */
  43 #define SND_SOC_TPLG_CTL_VOLSW          1
  44 #define SND_SOC_TPLG_CTL_VOLSW_SX       2
  45 #define SND_SOC_TPLG_CTL_VOLSW_XR_SX    3
  46 #define SND_SOC_TPLG_CTL_ENUM           4
  47 #define SND_SOC_TPLG_CTL_BYTES          5
  48 #define SND_SOC_TPLG_CTL_ENUM_VALUE     6
  49 #define SND_SOC_TPLG_CTL_RANGE          7
  50 #define SND_SOC_TPLG_CTL_STROBE         8
  51
  52
  53 /* individual widget kcontrol info types - can be mixed with other types */
  54 #define SND_SOC_TPLG_DAPM_CTL_VOLSW             64
  55 #define SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE       65
  56 #define SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT         66
  57 #define SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE        67
  58 #define SND_SOC_TPLG_DAPM_CTL_PIN               68
  59
  60 /* DAPM widget types - add new items to the end */
  61 #define SND_SOC_TPLG_DAPM_INPUT         0
  62 #define SND_SOC_TPLG_DAPM_OUTPUT        1
  63 #define SND_SOC_TPLG_DAPM_MUX           2
  64 #define SND_SOC_TPLG_DAPM_MIXER         3
  65 #define SND_SOC_TPLG_DAPM_PGA           4
  66 #define SND_SOC_TPLG_DAPM_OUT_DRV       5
  67 #define SND_SOC_TPLG_DAPM_ADC           6
  68 #define SND_SOC_TPLG_DAPM_DAC           7
  69 #define SND_SOC_TPLG_DAPM_SWITCH        8
  70 #define SND_SOC_TPLG_DAPM_PRE           9
  71 #define SND_SOC_TPLG_DAPM_POST          10
  72 #define SND_SOC_TPLG_DAPM_AIF_IN        11
  73 #define SND_SOC_TPLG_DAPM_AIF_OUT       12
  74 #define SND_SOC_TPLG_DAPM_DAI_IN        13
  75 #define SND_SOC_TPLG_DAPM_DAI_OUT       14
  76 #define SND_SOC_TPLG_DAPM_DAI_LINK      15
  77 #define SND_SOC_TPLG_DAPM_LAST          SND_SOC_TPLG_DAPM_DAI_LINK
  78
  79 /* Header magic number and string sizes */
  80 #define SND_SOC_TPLG_MAGIC              0x41536F43 /* ASoC */
  81
  82 /* string sizes */
  83 #define SND_SOC_TPLG_NUM_TEXTS          16
  84
  85 /* ABI version */
  86 #define SND_SOC_TPLG_ABI_VERSION        0x4
  87
  88 /* Max size of TLV data */
  89 #define SND_SOC_TPLG_TLV_SIZE           32
  90
  91 /*
  92  * File and Block header data types.
  93  * Add new generic and vendor types to end of list.
  94  * Generic types are handled by the core whilst vendors types are passed
  95  * to the component drivers for handling.
  96  */
  97 #define SND_SOC_TPLG_TYPE_MIXER         1
  98 #define SND_SOC_TPLG_TYPE_BYTES         2
  99 #define SND_SOC_TPLG_TYPE_ENUM          3
 100 #define SND_SOC_TPLG_TYPE_DAPM_GRAPH    4
 101 #define SND_SOC_TPLG_TYPE_DAPM_WIDGET   5
 102 #define SND_SOC_TPLG_TYPE_DAI_LINK      6
 103 #define SND_SOC_TPLG_TYPE_PCM           7
 104 #define SND_SOC_TPLG_TYPE_MANIFEST      8
 105 #define SND_SOC_TPLG_TYPE_CODEC_LINK    9
 106 #define SND_SOC_TPLG_TYPE_BACKEND_LINK  10
 107 #define SND_SOC_TPLG_TYPE_PDATA         11
 108 #define SND_SOC_TPLG_TYPE_MAX   SND_SOC_TPLG_TYPE_PDATA
 109
 110 /* vendor block IDs - please add new vendor types to end */
 111 #define SND_SOC_TPLG_TYPE_VENDOR_FW     1000
 112 #define SND_SOC_TPLG_TYPE_VENDOR_CONFIG 1001
 113 #define SND_SOC_TPLG_TYPE_VENDOR_COEFF  1002
 114 #define SND_SOC_TPLG_TYPEVENDOR_CODEC   1003
 115
 116 #define SND_SOC_TPLG_STREAM_PLAYBACK    0
 117 #define SND_SOC_TPLG_STREAM_CAPTURE     1
 118
 119 /* vendor tuple types */
 120 #define SND_SOC_TPLG_TUPLE_TYPE_UUID    0
 121 #define SND_SOC_TPLG_TUPLE_TYPE_STRING  1
 122 #define SND_SOC_TPLG_TUPLE_TYPE_BOOL    2
 123 #define SND_SOC_TPLG_TUPLE_TYPE_BYTE    3
 124 #define SND_SOC_TPLG_TUPLE_TYPE_WORD    4
 125 #define SND_SOC_TPLG_TUPLE_TYPE_SHORT   5
 126
 127 /*
 128  * Block Header.
 129  * This header precedes all object and object arrays below.
 130  */
 131 struct snd_soc_tplg_hdr {
 132         __le32 magic;           /* magic number */
 133         __le32 abi;             /* ABI version */
 134         __le32 version;         /* optional vendor specific version details */
 135         __le32 type;            /* SND_SOC_TPLG_TYPE_ */
 136         __le32 size;            /* size of this structure */
 137         __le32 vendor_type;     /* optional vendor specific type info */
 138         __le32 payload_size;    /* data bytes, excluding this header */
 139         __le32 index;           /* identifier for block */
 140         __le32 count;           /* number of elements in block */
 141 } __attribute__((packed));
 142
 143 /* vendor tuple for uuid */
 144 struct snd_soc_tplg_vendor_uuid_elem {
 145         __le32 token;
 146         char uuid[16];
 147 } __attribute__((packed));
 148
 149 /* vendor tuple for a bool/byte/short/word value */
 150 struct snd_soc_tplg_vendor_value_elem {
 151         __le32 token;
 152         __le32 value;
 153 } __attribute__((packed));
 154
 155 /* vendor tuple for string */
 156 struct snd_soc_tplg_vendor_string_elem {
 157         __le32 token;
 158         char string[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 159 } __attribute__((packed));
 160
 161 struct snd_soc_tplg_vendor_array {
 162         __le32 size;    /* size in bytes of the array, including all elements */
 163         __le32 type;    /* SND_SOC_TPLG_TUPLE_TYPE_ */
 164         __le32 num_elems;       /* number of elements in array */
 165         union {
 166                 struct snd_soc_tplg_vendor_uuid_elem uuid[0];
 167                 struct snd_soc_tplg_vendor_value_elem value[0];
 168                 struct snd_soc_tplg_vendor_string_elem string[0];
 169         };
 170 } __attribute__((packed));
 171
 172 /*
 173  * Private data.
 174  * All topology objects may have private data that can be used by the driver or
 175  * firmware. Core will ignore this data.
 176  */
 177 struct snd_soc_tplg_private {
 178         __le32 size;    /* in bytes of private data */
 179         union {
 180                 char data[0];
 181                 struct snd_soc_tplg_vendor_array array[0];
 182         };
 183 } __attribute__((packed));
 184
 185 /*
 186  * Kcontrol TLV data.
 187  */
 188 struct snd_soc_tplg_tlv_dbscale {
 189         __le32 min;
 190         __le32 step;
 191         __le32 mute;
 192 } __attribute__((packed));
 193
 194 struct snd_soc_tplg_ctl_tlv {
 195         __le32 size;    /* in bytes of this structure */
 196         __le32 type;    /* SNDRV_CTL_TLVT_*, type of TLV */
 197         union {
 198                 __le32 data[SND_SOC_TPLG_TLV_SIZE];
 199                 struct snd_soc_tplg_tlv_dbscale scale;
 200         };
 201 } __attribute__((packed));
 202
 203 /*
 204  * Kcontrol channel data
 205  */
 206 struct snd_soc_tplg_channel {
 207         __le32 size;    /* in bytes of this structure */
 208         __le32 reg;
 209         __le32 shift;
 210         __le32 id;      /* ID maps to Left, Right, LFE etc */
 211 } __attribute__((packed));
 212
 213 /*
 214  * Genericl Operations IDs, for binding Kcontrol or Bytes ext ops
 215  * Kcontrol ops need get/put/info.
 216  * Bytes ext ops need get/put.
 217  */
 218 struct snd_soc_tplg_io_ops {
 219         __le32 get;
 220         __le32 put;
 221         __le32 info;
 222 } __attribute__((packed));
 223
 224 /*
 225  * kcontrol header
 226  */
 227 struct snd_soc_tplg_ctl_hdr {
 228         __le32 size;    /* in bytes of this structure */
 229         __le32 type;
 230         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 231         __le32 access;
 232         struct snd_soc_tplg_io_ops ops;
 233         struct snd_soc_tplg_ctl_tlv tlv;
 234 } __attribute__((packed));
 235
 236 /*
 237  * Stream Capabilities
 238  */
 239 struct snd_soc_tplg_stream_caps {
 240         __le32 size;            /* in bytes of this structure */
 241         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 242         __le64 formats; /* supported formats SNDRV_PCM_FMTBIT_* */
 243         __le32 rates;           /* supported rates SNDRV_PCM_RATE_* */
 244         __le32 rate_min;        /* min rate */
 245         __le32 rate_max;        /* max rate */
 246         __le32 channels_min;    /* min channels */
 247         __le32 channels_max;    /* max channels */
 248         __le32 periods_min;     /* min number of periods */
 249         __le32 periods_max;     /* max number of periods */
 250         __le32 period_size_min; /* min period size bytes */
 251         __le32 period_size_max; /* max period size bytes */
 252         __le32 buffer_size_min; /* min buffer size bytes */
 253         __le32 buffer_size_max; /* max buffer size bytes */
 254 } __attribute__((packed));
 255
 256 /*
 257  * FE or BE Stream configuration supported by SW/FW
 258  */
 259 struct snd_soc_tplg_stream {
 260         __le32 size;            /* in bytes of this structure */
 261         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* Name of the stream */
 262         __le64 format;          /* SNDRV_PCM_FMTBIT_* */
 263         __le32 rate;            /* SNDRV_PCM_RATE_* */
 264         __le32 period_bytes;    /* size of period in bytes */
 265         __le32 buffer_bytes;    /* size of buffer in bytes */
 266         __le32 channels;        /* channels */
 267 } __attribute__((packed));
 268
 269 /*
 270  * Manifest. List totals for each payload type. Not used in parsing, but will
 271  * be passed to the component driver before any other objects in order for any
 272  * global component resource allocations.
 273  *
 274  * File block representation for manifest :-
 275  * +-----------------------------------+----+
 276  * | struct snd_soc_tplg_hdr           |  1 |
 277  * +-----------------------------------+----+
 278  * | struct snd_soc_tplg_manifest      |  1 |
 279  * +-----------------------------------+----+
 280  */
 281 struct snd_soc_tplg_manifest {
 282         __le32 size;            /* in bytes of this structure */
 283         __le32 control_elems;   /* number of control elements */
 284         __le32 widget_elems;    /* number of widget elements */
 285         __le32 graph_elems;     /* number of graph elements */
 286         __le32 pcm_elems;       /* number of PCM elements */
 287         __le32 dai_link_elems;  /* number of DAI link elements */
 288         struct snd_soc_tplg_private priv;
 289 } __attribute__((packed));
 290
 291 /*
 292  * Mixer kcontrol.
 293  *
 294  * File block representation for mixer kcontrol :-
 295  * +-----------------------------------+----+
 296  * | struct snd_soc_tplg_hdr           |  1 |
 297  * +-----------------------------------+----+
 298  * | struct snd_soc_tplg_mixer_control |  N |
 299  * +-----------------------------------+----+
 300  */
 301 struct snd_soc_tplg_mixer_control {
 302         struct snd_soc_tplg_ctl_hdr hdr;
 303         __le32 size;    /* in bytes of this structure */
 304         __le32 min;
 305         __le32 max;
 306         __le32 platform_max;
 307         __le32 invert;
 308         __le32 num_channels;
 309         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 310         struct snd_soc_tplg_private priv;
 311 } __attribute__((packed));
 312
 313 /*
 314  * Enumerated kcontrol
 315  *
 316  * File block representation for enum kcontrol :-
 317  * +-----------------------------------+----+
 318  * | struct snd_soc_tplg_hdr           |  1 |
 319  * +-----------------------------------+----+
 320  * | struct snd_soc_tplg_enum_control  |  N |
 321  * +-----------------------------------+----+
 322  */
 323 struct snd_soc_tplg_enum_control {
 324         struct snd_soc_tplg_ctl_hdr hdr;
 325         __le32 size;    /* in bytes of this structure */
 326         __le32 num_channels;
 327         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 328         __le32 items;
 329         __le32 mask;
 330         __le32 count;
 331         char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 332         __le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
 333         struct snd_soc_tplg_private priv;
 334 } __attribute__((packed));
 335
 336 /*
 337  * Bytes kcontrol
 338  *
 339  * File block representation for bytes kcontrol :-
 340  * +-----------------------------------+----+
 341  * | struct snd_soc_tplg_hdr           |  1 |
 342  * +-----------------------------------+----+
 343  * | struct snd_soc_tplg_bytes_control |  N |
 344  * +-----------------------------------+----+
 345  */
 346 struct snd_soc_tplg_bytes_control {
 347         struct snd_soc_tplg_ctl_hdr hdr;
 348         __le32 size;    /* in bytes of this structure */
 349         __le32 max;
 350         __le32 mask;
 351         __le32 base;
 352         __le32 num_regs;
 353         struct snd_soc_tplg_io_ops ext_ops;
 354         struct snd_soc_tplg_private priv;
 355 } __attribute__((packed));
 356
 357 /*
 358  * DAPM Graph Element
 359  *
 360  * File block representation for DAPM graph elements :-
 361  * +-------------------------------------+----+
 362  * | struct snd_soc_tplg_hdr             |  1 |
 363  * +-------------------------------------+----+
 364  * | struct snd_soc_tplg_dapm_graph_elem |  N |
 365  * +-------------------------------------+----+
 366  */
 367 struct snd_soc_tplg_dapm_graph_elem {
 368         char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 369         char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 370         char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 371 } __attribute__((packed));
 372
 373 /*
 374  * DAPM Widget.
 375  *
 376  * File block representation for DAPM widget :-
 377  * +-------------------------------------+-----+
 378  * | struct snd_soc_tplg_hdr             |  1  |
 379  * +-------------------------------------+-----+
 380  * | struct snd_soc_tplg_dapm_widget     |  N  |
 381  * +-------------------------------------+-----+
 382  * |   struct snd_soc_tplg_enum_control  | 0|1 |
 383  * |   struct snd_soc_tplg_mixer_control | 0|N |
 384  * +-------------------------------------+-----+
 385  *
 386  * Optional enum or mixer control can be appended to the end of each widget
 387  * in the block.
 388  */
 389 struct snd_soc_tplg_dapm_widget {
 390         __le32 size;            /* in bytes of this structure */
 391         __le32 id;              /* SND_SOC_DAPM_CTL */
 392         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 393         char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 394
 395         __le32 reg;             /* negative reg = no direct dapm */
 396         __le32 shift;           /* bits to shift */
 397         __le32 mask;            /* non-shifted mask */
 398         __le32 subseq;          /* sort within widget type */
 399         __le32 invert;          /* invert the power bit */
 400         __le32 ignore_suspend;  /* kept enabled over suspend */
 401         __le16 event_flags;
 402         __le16 event_type;
 403         __le32 num_kcontrols;
 404         struct snd_soc_tplg_private priv;
 405         /*
 406          * kcontrols that relate to this widget
 407          * follow here after widget private data
 408          */
 409 } __attribute__((packed));
 410
 411
 412 /*
 413  * Describes SW/FW specific features of PCM (FE DAI & DAI link).
 414  *
 415  * File block representation for PCM :-
 416  * +-----------------------------------+-----+
 417  * | struct snd_soc_tplg_hdr           |  1  |
 418  * +-----------------------------------+-----+
 419  * | struct snd_soc_tplg_pcm           |  N  |
 420  * +-----------------------------------+-----+
 421  */
 422 struct snd_soc_tplg_pcm {
 423         __le32 size;            /* in bytes of this structure */
 424         char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 425         char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 426         __le32 pcm_id;          /* unique ID - used to match with DAI link */
 427         __le32 dai_id;          /* unique ID - used to match */
 428         __le32 playback;        /* supports playback mode */
 429         __le32 capture;         /* supports capture mode */
 430         __le32 compress;        /* 1 = compressed; 0 = PCM */
 431         struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */
 432         __le32 num_streams;     /* number of streams */
 433         struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
 434 } __attribute__((packed));
 435
 436
 437 /*
 438  * Describes the BE or CC link runtime supported configs or params
 439  *
 440  * File block representation for BE/CC link config :-
 441  * +-----------------------------------+-----+
 442  * | struct snd_soc_tplg_hdr           |  1  |
 443  * +-----------------------------------+-----+
 444  * | struct snd_soc_tplg_link_config   |  N  |
 445  * +-----------------------------------+-----+
 446  */
 447 struct snd_soc_tplg_link_config {
 448         __le32 size;            /* in bytes of this structure */
 449         __le32 id;              /* unique ID - used to match */
 450         struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */
 451         __le32 num_streams;     /* number of streams */
 452 } __attribute__((packed));
 453 #endif