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 /*
  22  * Maximum number of channels topology kcontrol can represent.
  23  */
  24 #define SND_SOC_TPLG_MAX_CHAN           8
  25
  26 /*
  27  * Maximum number of PCM formats capability
  28  */
  29 #define SND_SOC_TPLG_MAX_FORMATS        16
  30
  31 /*
  32  * Maximum number of PCM stream configs
  33  */
  34 #define SND_SOC_TPLG_STREAM_CONFIG_MAX  8
  35
  36 /* individual kcontrol info types - can be mixed with other types */
  37 #define SND_SOC_TPLG_CTL_VOLSW          1
  38 #define SND_SOC_TPLG_CTL_VOLSW_SX       2
  39 #define SND_SOC_TPLG_CTL_VOLSW_XR_SX    3
  40 #define SND_SOC_TPLG_CTL_ENUM           4
  41 #define SND_SOC_TPLG_CTL_BYTES          5
  42 #define SND_SOC_TPLG_CTL_ENUM_VALUE     6
  43 #define SND_SOC_TPLG_CTL_RANGE          7
  44 #define SND_SOC_TPLG_CTL_STROBE         8
  45
  46
  47 /* individual widget kcontrol info types - can be mixed with other types */
  48 #define SND_SOC_TPLG_DAPM_CTL_VOLSW             64
  49 #define SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE       65
  50 #define SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT         66
  51 #define SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE        67
  52 #define SND_SOC_TPLG_DAPM_CTL_PIN               68
  53
  54 /* DAPM widget types - add new items to the end */
  55 #define SND_SOC_TPLG_DAPM_INPUT         0
  56 #define SND_SOC_TPLG_DAPM_OUTPUT        1
  57 #define SND_SOC_TPLG_DAPM_MUX           2
  58 #define SND_SOC_TPLG_DAPM_MIXER         3
  59 #define SND_SOC_TPLG_DAPM_PGA           4
  60 #define SND_SOC_TPLG_DAPM_OUT_DRV       5
  61 #define SND_SOC_TPLG_DAPM_ADC           6
  62 #define SND_SOC_TPLG_DAPM_DAC           7
  63 #define SND_SOC_TPLG_DAPM_SWITCH        8
  64 #define SND_SOC_TPLG_DAPM_PRE           9
  65 #define SND_SOC_TPLG_DAPM_POST          10
  66 #define SND_SOC_TPLG_DAPM_AIF_IN        11
  67 #define SND_SOC_TPLG_DAPM_AIF_OUT       12
  68 #define SND_SOC_TPLG_DAPM_DAI_IN        13
  69 #define SND_SOC_TPLG_DAPM_DAI_OUT       14
  70 #define SND_SOC_TPLG_DAPM_DAI_LINK      15
  71 #define SND_SOC_TPLG_DAPM_LAST          SND_SOC_TPLG_DAPM_DAI_LINK
  72
  73 /* Header magic number and string sizes */
  74 #define SND_SOC_TPLG_MAGIC              0x41536F43 /* ASoC */
  75
  76 /* string sizes */
  77 #define SND_SOC_TPLG_NUM_TEXTS          16
  78
  79 /* ABI version */
  80 #define SND_SOC_TPLG_ABI_VERSION        0x2
  81
  82 /* Max size of TLV data */
  83 #define SND_SOC_TPLG_TLV_SIZE           32
  84
  85 /*
  86  * File and Block header data types.
  87  * Add new generic and vendor types to end of list.
  88  * Generic types are handled by the core whilst vendors types are passed
  89  * to the component drivers for handling.
  90  */
  91 #define SND_SOC_TPLG_TYPE_MIXER         1
  92 #define SND_SOC_TPLG_TYPE_BYTES         2
  93 #define SND_SOC_TPLG_TYPE_ENUM          3
  94 #define SND_SOC_TPLG_TYPE_DAPM_GRAPH    4
  95 #define SND_SOC_TPLG_TYPE_DAPM_WIDGET   5
  96 #define SND_SOC_TPLG_TYPE_DAI_LINK      6
  97 #define SND_SOC_TPLG_TYPE_PCM           7
  98 #define SND_SOC_TPLG_TYPE_MANIFEST      8
  99 #define SND_SOC_TPLG_TYPE_CODEC_LINK    9
 100 #define SND_SOC_TPLG_TYPE_MAX   SND_SOC_TPLG_TYPE_CODEC_LINK
 101
 102 /* vendor block IDs - please add new vendor types to end */
 103 #define SND_SOC_TPLG_TYPE_VENDOR_FW     1000
 104 #define SND_SOC_TPLG_TYPE_VENDOR_CONFIG 1001
 105 #define SND_SOC_TPLG_TYPE_VENDOR_COEFF  1002
 106 #define SND_SOC_TPLG_TYPEVENDOR_CODEC   1003
 107
 108 #define SND_SOC_TPLG_STREAM_PLAYBACK    0
 109 #define SND_SOC_TPLG_STREAM_CAPTURE     1
 110
 111 /*
 112  * Block Header.
 113  * This header precedes all object and object arrays below.
 114  */
 115 struct snd_soc_tplg_hdr {
 116         __le32 magic;           /* magic number */
 117         __le32 abi;             /* ABI version */
 118         __le32 version;         /* optional vendor specific version details */
 119         __le32 type;            /* SND_SOC_TPLG_TYPE_ */
 120         __le32 size;            /* size of this structure */
 121         __le32 vendor_type;     /* optional vendor specific type info */
 122         __le32 payload_size;    /* data bytes, excluding this header */
 123         __le32 index;           /* identifier for block */
 124         __le32 count;           /* number of elements in block */
 125 } __attribute__((packed));
 126
 127 /*
 128  * Private data.
 129  * All topology objects may have private data that can be used by the driver or
 130  * firmware. Core will ignore this data.
 131  */
 132 struct snd_soc_tplg_private {
 133         __le32 size;    /* in bytes of private data */
 134         char data[0];
 135 } __attribute__((packed));
 136
 137 /*
 138  * Kcontrol TLV data.
 139  */
 140 struct snd_soc_tplg_tlv_dbscale {
 141         __le32 min;
 142         __le32 step;
 143         __le32 mute;
 144 } __attribute__((packed));
 145
 146 struct snd_soc_tplg_ctl_tlv {
 147         __le32 size;    /* in bytes of this structure */
 148         __le32 type;    /* SNDRV_CTL_TLVT_*, type of TLV */
 149         union {
 150                 __le32 data[SND_SOC_TPLG_TLV_SIZE];
 151                 struct snd_soc_tplg_tlv_dbscale scale;
 152         };
 153 } __attribute__((packed));
 154
 155 /*
 156  * Kcontrol channel data
 157  */
 158 struct snd_soc_tplg_channel {
 159         __le32 size;    /* in bytes of this structure */
 160         __le32 reg;
 161         __le32 shift;
 162         __le32 id;      /* ID maps to Left, Right, LFE etc */
 163 } __attribute__((packed));
 164
 165 /*
 166  * Kcontrol Operations IDs
 167  */
 168 struct snd_soc_tplg_kcontrol_ops_id {
 169         __le32 get;
 170         __le32 put;
 171         __le32 info;
 172 } __attribute__((packed));
 173
 174 /*
 175  * kcontrol header
 176  */
 177 struct snd_soc_tplg_ctl_hdr {
 178         __le32 size;    /* in bytes of this structure */
 179         __le32 type;
 180         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 181         __le32 access;
 182         struct snd_soc_tplg_kcontrol_ops_id ops;
 183         struct snd_soc_tplg_ctl_tlv tlv;
 184 } __attribute__((packed));
 185
 186 /*
 187  * Stream Capabilities
 188  */
 189 struct snd_soc_tplg_stream_caps {
 190         __le32 size;            /* in bytes of this structure */
 191         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 192         __le64 formats[SND_SOC_TPLG_MAX_FORMATS];       /* supported formats SNDRV_PCM_FMTBIT_* */
 193         __le32 rates;           /* supported rates SNDRV_PCM_RATE_* */
 194         __le32 rate_min;        /* min rate */
 195         __le32 rate_max;        /* max rate */
 196         __le32 channels_min;    /* min channels */
 197         __le32 channels_max;    /* max channels */
 198         __le32 periods_min;     /* min number of periods */
 199         __le32 periods_max;     /* max number of periods */
 200         __le32 period_size_min; /* min period size bytes */
 201         __le32 period_size_max; /* max period size bytes */
 202         __le32 buffer_size_min; /* min buffer size bytes */
 203         __le32 buffer_size_max; /* max buffer size bytes */
 204 } __attribute__((packed));
 205
 206 /*
 207  * FE or BE Stream configuration supported by SW/FW
 208  */
 209 struct snd_soc_tplg_stream {
 210         __le32 size;            /* in bytes of this structure */
 211         __le64 format;          /* SNDRV_PCM_FMTBIT_* */
 212         __le32 rate;            /* SNDRV_PCM_RATE_* */
 213         __le32 period_bytes;    /* size of period in bytes */
 214         __le32 buffer_bytes;    /* size of buffer in bytes */
 215         __le32 channels;        /* channels */
 216         __le32 tdm_slot;        /* optional BE bitmask of supported TDM slots */
 217         __le32 dai_fmt;         /* SND_SOC_DAIFMT_  */
 218 } __attribute__((packed));
 219
 220 /*
 221  * Duplex stream configuration supported by SW/FW.
 222  */
 223 struct snd_soc_tplg_stream_config {
 224         __le32 size;            /* in bytes of this structure */
 225         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 226         struct snd_soc_tplg_stream playback;
 227         struct snd_soc_tplg_stream capture;
 228 } __attribute__((packed));
 229
 230 /*
 231  * Manifest. List totals for each payload type. Not used in parsing, but will
 232  * be passed to the component driver before any other objects in order for any
 233  * global component resource allocations.
 234  *
 235  * File block representation for manifest :-
 236  * +-----------------------------------+----+
 237  * | struct snd_soc_tplg_hdr           |  1 |
 238  * +-----------------------------------+----+
 239  * | struct snd_soc_tplg_manifest      |  1 |
 240  * +-----------------------------------+----+
 241  */
 242 struct snd_soc_tplg_manifest {
 243         __le32 size;            /* in bytes of this structure */
 244         __le32 control_elems;   /* number of control elements */
 245         __le32 widget_elems;    /* number of widget elements */
 246         __le32 graph_elems;     /* number of graph elements */
 247         __le32 dai_elems;       /* number of DAI elements */
 248         __le32 dai_link_elems;  /* number of DAI link elements */
 249         struct snd_soc_tplg_private priv;
 250 } __attribute__((packed));
 251
 252 /*
 253  * Mixer kcontrol.
 254  *
 255  * File block representation for mixer kcontrol :-
 256  * +-----------------------------------+----+
 257  * | struct snd_soc_tplg_hdr           |  1 |
 258  * +-----------------------------------+----+
 259  * | struct snd_soc_tplg_mixer_control |  N |
 260  * +-----------------------------------+----+
 261  */
 262 struct snd_soc_tplg_mixer_control {
 263         struct snd_soc_tplg_ctl_hdr hdr;
 264         __le32 size;    /* in bytes of this structure */
 265         __le32 min;
 266         __le32 max;
 267         __le32 platform_max;
 268         __le32 invert;
 269         __le32 num_channels;
 270         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 271         struct snd_soc_tplg_private priv;
 272 } __attribute__((packed));
 273
 274 /*
 275  * Enumerated kcontrol
 276  *
 277  * File block representation for enum kcontrol :-
 278  * +-----------------------------------+----+
 279  * | struct snd_soc_tplg_hdr           |  1 |
 280  * +-----------------------------------+----+
 281  * | struct snd_soc_tplg_enum_control  |  N |
 282  * +-----------------------------------+----+
 283  */
 284 struct snd_soc_tplg_enum_control {
 285         struct snd_soc_tplg_ctl_hdr hdr;
 286         __le32 size;    /* in bytes of this structure */
 287         __le32 num_channels;
 288         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 289         __le32 items;
 290         __le32 mask;
 291         __le32 count;
 292         char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 293         __le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
 294         struct snd_soc_tplg_private priv;
 295 } __attribute__((packed));
 296
 297 /*
 298  * Bytes kcontrol
 299  *
 300  * File block representation for bytes kcontrol :-
 301  * +-----------------------------------+----+
 302  * | struct snd_soc_tplg_hdr           |  1 |
 303  * +-----------------------------------+----+
 304  * | struct snd_soc_tplg_bytes_control |  N |
 305  * +-----------------------------------+----+
 306  */
 307 struct snd_soc_tplg_bytes_control {
 308         struct snd_soc_tplg_ctl_hdr hdr;
 309         __le32 size;    /* in bytes of this structure */
 310         __le32 max;
 311         __le32 mask;
 312         __le32 base;
 313         __le32 num_regs;
 314         struct snd_soc_tplg_private priv;
 315 } __attribute__((packed));
 316
 317 /*
 318  * DAPM Graph Element
 319  *
 320  * File block representation for DAPM graph elements :-
 321  * +-------------------------------------+----+
 322  * | struct snd_soc_tplg_hdr             |  1 |
 323  * +-------------------------------------+----+
 324  * | struct snd_soc_tplg_dapm_graph_elem |  N |
 325  * +-------------------------------------+----+
 326  */
 327 struct snd_soc_tplg_dapm_graph_elem {
 328         char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 329         char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 330         char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 331 } __attribute__((packed));
 332
 333 /*
 334  * DAPM Widget.
 335  *
 336  * File block representation for DAPM widget :-
 337  * +-------------------------------------+-----+
 338  * | struct snd_soc_tplg_hdr             |  1  |
 339  * +-------------------------------------+-----+
 340  * | struct snd_soc_tplg_dapm_widget     |  N  |
 341  * +-------------------------------------+-----+
 342  * |   struct snd_soc_tplg_enum_control  | 0|1 |
 343  * |   struct snd_soc_tplg_mixer_control | 0|N |
 344  * +-------------------------------------+-----+
 345  *
 346  * Optional enum or mixer control can be appended to the end of each widget
 347  * in the block.
 348  */
 349 struct snd_soc_tplg_dapm_widget {
 350         __le32 size;            /* in bytes of this structure */
 351         __le32 id;              /* SND_SOC_DAPM_CTL */
 352         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 353         char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 354
 355         __le32 reg;             /* negative reg = no direct dapm */
 356         __le32 shift;           /* bits to shift */
 357         __le32 mask;            /* non-shifted mask */
 358         __le32 subseq;          /* sort within widget type */
 359         __u32 invert;           /* invert the power bit */
 360         __u32 ignore_suspend;   /* kept enabled over suspend */
 361         __u16 event_flags;
 362         __u16 event_type;
 363         __u16 num_kcontrols;
 364         struct snd_soc_tplg_private priv;
 365         /*
 366          * kcontrols that relate to this widget
 367          * follow here after widget private data
 368          */
 369 } __attribute__((packed));
 370
 371 struct snd_soc_tplg_pcm_cfg_caps {
 372         struct snd_soc_tplg_stream_caps caps;
 373         struct snd_soc_tplg_stream_config configs[SND_SOC_TPLG_STREAM_CONFIG_MAX];
 374         __le32 num_configs;     /* number of configs */
 375 } __attribute__((packed));
 376
 377 /*
 378  * Describes SW/FW specific features of PCM or DAI link.
 379  *
 380  * File block representation for PCM/DAI-Link :-
 381  * +-----------------------------------+-----+
 382  * | struct snd_soc_tplg_hdr           |  1  |
 383  * +-----------------------------------+-----+
 384  * | struct snd_soc_tplg_dapm_pcm_dai  |  N  |
 385  * +-----------------------------------+-----+
 386  */
 387 struct snd_soc_tplg_pcm_dai {
 388         __le32 size;            /* in bytes of this structure */
 389         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 390         __le32 id;                      /* unique ID - used to match */
 391         __le32 playback;                /* supports playback mode */
 392         __le32 capture;                 /* supports capture mode */
 393         __le32 compress;                /* 1 = compressed; 0 = PCM */
 394         struct snd_soc_tplg_pcm_cfg_caps capconf[2];    /* capabilities and configs */
 395 } __attribute__((packed));
 396
 397 #endif