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 /*
 120  * Block Header.
 121  * This header precedes all object and object arrays below.
 122  */
 123 struct snd_soc_tplg_hdr {
 124         __le32 magic;           /* magic number */
 125         __le32 abi;             /* ABI version */
 126         __le32 version;         /* optional vendor specific version details */
 127         __le32 type;            /* SND_SOC_TPLG_TYPE_ */
 128         __le32 size;            /* size of this structure */
 129         __le32 vendor_type;     /* optional vendor specific type info */
 130         __le32 payload_size;    /* data bytes, excluding this header */
 131         __le32 index;           /* identifier for block */
 132         __le32 count;           /* number of elements in block */
 133 } __attribute__((packed));
 134
 135 /*
 136  * Private data.
 137  * All topology objects may have private data that can be used by the driver or
 138  * firmware. Core will ignore this data.
 139  */
 140 struct snd_soc_tplg_private {
 141         __le32 size;    /* in bytes of private data */
 142         char data[0];
 143 } __attribute__((packed));
 144
 145 /*
 146  * Kcontrol TLV data.
 147  */
 148 struct snd_soc_tplg_tlv_dbscale {
 149         __le32 min;
 150         __le32 step;
 151         __le32 mute;
 152 } __attribute__((packed));
 153
 154 struct snd_soc_tplg_ctl_tlv {
 155         __le32 size;    /* in bytes of this structure */
 156         __le32 type;    /* SNDRV_CTL_TLVT_*, type of TLV */
 157         union {
 158                 __le32 data[SND_SOC_TPLG_TLV_SIZE];
 159                 struct snd_soc_tplg_tlv_dbscale scale;
 160         };
 161 } __attribute__((packed));
 162
 163 /*
 164  * Kcontrol channel data
 165  */
 166 struct snd_soc_tplg_channel {
 167         __le32 size;    /* in bytes of this structure */
 168         __le32 reg;
 169         __le32 shift;
 170         __le32 id;      /* ID maps to Left, Right, LFE etc */
 171 } __attribute__((packed));
 172
 173 /*
 174  * Genericl Operations IDs, for binding Kcontrol or Bytes ext ops
 175  * Kcontrol ops need get/put/info.
 176  * Bytes ext ops need get/put.
 177  */
 178 struct snd_soc_tplg_io_ops {
 179         __le32 get;
 180         __le32 put;
 181         __le32 info;
 182 } __attribute__((packed));
 183
 184 /*
 185  * kcontrol header
 186  */
 187 struct snd_soc_tplg_ctl_hdr {
 188         __le32 size;    /* in bytes of this structure */
 189         __le32 type;
 190         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 191         __le32 access;
 192         struct snd_soc_tplg_io_ops ops;
 193         struct snd_soc_tplg_ctl_tlv tlv;
 194 } __attribute__((packed));
 195
 196 /*
 197  * Stream Capabilities
 198  */
 199 struct snd_soc_tplg_stream_caps {
 200         __le32 size;            /* in bytes of this structure */
 201         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 202         __le64 formats; /* supported formats SNDRV_PCM_FMTBIT_* */
 203         __le32 rates;           /* supported rates SNDRV_PCM_RATE_* */
 204         __le32 rate_min;        /* min rate */
 205         __le32 rate_max;        /* max rate */
 206         __le32 channels_min;    /* min channels */
 207         __le32 channels_max;    /* max channels */
 208         __le32 periods_min;     /* min number of periods */
 209         __le32 periods_max;     /* max number of periods */
 210         __le32 period_size_min; /* min period size bytes */
 211         __le32 period_size_max; /* max period size bytes */
 212         __le32 buffer_size_min; /* min buffer size bytes */
 213         __le32 buffer_size_max; /* max buffer size bytes */
 214 } __attribute__((packed));
 215
 216 /*
 217  * FE or BE Stream configuration supported by SW/FW
 218  */
 219 struct snd_soc_tplg_stream {
 220         __le32 size;            /* in bytes of this structure */
 221         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* Name of the stream */
 222         __le64 format;          /* SNDRV_PCM_FMTBIT_* */
 223         __le32 rate;            /* SNDRV_PCM_RATE_* */
 224         __le32 period_bytes;    /* size of period in bytes */
 225         __le32 buffer_bytes;    /* size of buffer in bytes */
 226         __le32 channels;        /* channels */
 227         __le32 tdm_slot;        /* optional BE bitmask of supported TDM slots */
 228         __le32 dai_fmt;         /* SND_SOC_DAIFMT_  */
 229 } __attribute__((packed));
 230
 231 /*
 232  * Manifest. List totals for each payload type. Not used in parsing, but will
 233  * be passed to the component driver before any other objects in order for any
 234  * global component resource allocations.
 235  *
 236  * File block representation for manifest :-
 237  * +-----------------------------------+----+
 238  * | struct snd_soc_tplg_hdr           |  1 |
 239  * +-----------------------------------+----+
 240  * | struct snd_soc_tplg_manifest      |  1 |
 241  * +-----------------------------------+----+
 242  */
 243 struct snd_soc_tplg_manifest {
 244         __le32 size;            /* in bytes of this structure */
 245         __le32 control_elems;   /* number of control elements */
 246         __le32 widget_elems;    /* number of widget elements */
 247         __le32 graph_elems;     /* number of graph elements */
 248         __le32 dai_elems;       /* number of DAI elements */
 249         __le32 dai_link_elems;  /* number of DAI link elements */
 250         struct snd_soc_tplg_private priv;
 251 } __attribute__((packed));
 252
 253 /*
 254  * Mixer kcontrol.
 255  *
 256  * File block representation for mixer kcontrol :-
 257  * +-----------------------------------+----+
 258  * | struct snd_soc_tplg_hdr           |  1 |
 259  * +-----------------------------------+----+
 260  * | struct snd_soc_tplg_mixer_control |  N |
 261  * +-----------------------------------+----+
 262  */
 263 struct snd_soc_tplg_mixer_control {
 264         struct snd_soc_tplg_ctl_hdr hdr;
 265         __le32 size;    /* in bytes of this structure */
 266         __le32 min;
 267         __le32 max;
 268         __le32 platform_max;
 269         __le32 invert;
 270         __le32 num_channels;
 271         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 272         struct snd_soc_tplg_private priv;
 273 } __attribute__((packed));
 274
 275 /*
 276  * Enumerated kcontrol
 277  *
 278  * File block representation for enum kcontrol :-
 279  * +-----------------------------------+----+
 280  * | struct snd_soc_tplg_hdr           |  1 |
 281  * +-----------------------------------+----+
 282  * | struct snd_soc_tplg_enum_control  |  N |
 283  * +-----------------------------------+----+
 284  */
 285 struct snd_soc_tplg_enum_control {
 286         struct snd_soc_tplg_ctl_hdr hdr;
 287         __le32 size;    /* in bytes of this structure */
 288         __le32 num_channels;
 289         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 290         __le32 items;
 291         __le32 mask;
 292         __le32 count;
 293         char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 294         __le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
 295         struct snd_soc_tplg_private priv;
 296 } __attribute__((packed));
 297
 298 /*
 299  * Bytes kcontrol
 300  *
 301  * File block representation for bytes kcontrol :-
 302  * +-----------------------------------+----+
 303  * | struct snd_soc_tplg_hdr           |  1 |
 304  * +-----------------------------------+----+
 305  * | struct snd_soc_tplg_bytes_control |  N |
 306  * +-----------------------------------+----+
 307  */
 308 struct snd_soc_tplg_bytes_control {
 309         struct snd_soc_tplg_ctl_hdr hdr;
 310         __le32 size;    /* in bytes of this structure */
 311         __le32 max;
 312         __le32 mask;
 313         __le32 base;
 314         __le32 num_regs;
 315         struct snd_soc_tplg_io_ops ext_ops;
 316         struct snd_soc_tplg_private priv;
 317 } __attribute__((packed));
 318
 319 /*
 320  * DAPM Graph Element
 321  *
 322  * File block representation for DAPM graph elements :-
 323  * +-------------------------------------+----+
 324  * | struct snd_soc_tplg_hdr             |  1 |
 325  * +-------------------------------------+----+
 326  * | struct snd_soc_tplg_dapm_graph_elem |  N |
 327  * +-------------------------------------+----+
 328  */
 329 struct snd_soc_tplg_dapm_graph_elem {
 330         char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 331         char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 332         char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 333 } __attribute__((packed));
 334
 335 /*
 336  * DAPM Widget.
 337  *
 338  * File block representation for DAPM widget :-
 339  * +-------------------------------------+-----+
 340  * | struct snd_soc_tplg_hdr             |  1  |
 341  * +-------------------------------------+-----+
 342  * | struct snd_soc_tplg_dapm_widget     |  N  |
 343  * +-------------------------------------+-----+
 344  * |   struct snd_soc_tplg_enum_control  | 0|1 |
 345  * |   struct snd_soc_tplg_mixer_control | 0|N |
 346  * +-------------------------------------+-----+
 347  *
 348  * Optional enum or mixer control can be appended to the end of each widget
 349  * in the block.
 350  */
 351 struct snd_soc_tplg_dapm_widget {
 352         __le32 size;            /* in bytes of this structure */
 353         __le32 id;              /* SND_SOC_DAPM_CTL */
 354         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 355         char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 356
 357         __le32 reg;             /* negative reg = no direct dapm */
 358         __le32 shift;           /* bits to shift */
 359         __le32 mask;            /* non-shifted mask */
 360         __le32 subseq;          /* sort within widget type */
 361         __le32 invert;          /* invert the power bit */
 362         __le32 ignore_suspend;  /* kept enabled over suspend */
 363         __le16 event_flags;
 364         __le16 event_type;
 365         __le32 num_kcontrols;
 366         struct snd_soc_tplg_private priv;
 367         /*
 368          * kcontrols that relate to this widget
 369          * follow here after widget private data
 370          */
 371 } __attribute__((packed));
 372
 373
 374 /*
 375  * Describes SW/FW specific features of PCM (FE DAI & DAI link).
 376  *
 377  * File block representation for PCM :-
 378  * +-----------------------------------+-----+
 379  * | struct snd_soc_tplg_hdr           |  1  |
 380  * +-----------------------------------+-----+
 381  * | struct snd_soc_tplg_pcm           |  N  |
 382  * +-----------------------------------+-----+
 383  */
 384 struct snd_soc_tplg_pcm {
 385         __le32 size;            /* in bytes of this structure */
 386         char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 387         char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 388         __le32 pcm_id;          /* unique ID - used to match */
 389         __le32 dai_id;          /* unique ID - used to match */
 390         __le32 playback;        /* supports playback mode */
 391         __le32 capture;         /* supports capture mode */
 392         __le32 compress;        /* 1 = compressed; 0 = PCM */
 393         struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */
 394         __le32 num_streams;     /* number of streams */
 395         struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
 396 } __attribute__((packed));
 397
 398 #endif