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 preceeds 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_ctl_tlv {
 141         __le32 size;    /* in bytes aligned to 4 */
 142         __le32 numid;   /* control element numeric identification */
 143         __le32 count;   /* number of elem in data array */
 144         __le32 data[SND_SOC_TPLG_TLV_SIZE];
 145 } __attribute__((packed));
 146
 147 /*
 148  * Kcontrol channel data
 149  */
 150 struct snd_soc_tplg_channel {
 151         __le32 size;    /* in bytes of this structure */
 152         __le32 reg;
 153         __le32 shift;
 154         __le32 id;      /* ID maps to Left, Right, LFE etc */
 155 } __attribute__((packed));
 156
 157 /*
 158  * Kcontrol Operations IDs
 159  */
 160 struct snd_soc_tplg_kcontrol_ops_id {
 161         __le32 get;
 162         __le32 put;
 163         __le32 info;
 164 } __attribute__((packed));
 165
 166 /*
 167  * kcontrol header
 168  */
 169 struct snd_soc_tplg_ctl_hdr {
 170         __le32 size;    /* in bytes of this structure */
 171         __le32 type;
 172         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 173         __le32 access;
 174         struct snd_soc_tplg_kcontrol_ops_id ops;
 175         __le32 tlv_size;        /* non zero means control has TLV data */
 176 } __attribute__((packed));
 177
 178 /*
 179  * Stream Capabilities
 180  */
 181 struct snd_soc_tplg_stream_caps {
 182         __le32 size;            /* in bytes of this structure */
 183         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 184         __le64 formats[SND_SOC_TPLG_MAX_FORMATS];       /* supported formats SNDRV_PCM_FMTBIT_* */
 185         __le32 rates;           /* supported rates SNDRV_PCM_RATE_* */
 186         __le32 rate_min;        /* min rate */
 187         __le32 rate_max;        /* max rate */
 188         __le32 channels_min;    /* min channels */
 189         __le32 channels_max;    /* max channels */
 190         __le32 periods_min;     /* min number of periods */
 191         __le32 periods_max;     /* max number of periods */
 192         __le32 period_size_min; /* min period size bytes */
 193         __le32 period_size_max; /* max period size bytes */
 194         __le32 buffer_size_min; /* min buffer size bytes */
 195         __le32 buffer_size_max; /* max buffer size bytes */
 196 } __attribute__((packed));
 197
 198 /*
 199  * FE or BE Stream configuration supported by SW/FW
 200  */
 201 struct snd_soc_tplg_stream {
 202         __le32 size;            /* in bytes of this structure */
 203         __le64 format;          /* SNDRV_PCM_FMTBIT_* */
 204         __le32 rate;            /* SNDRV_PCM_RATE_* */
 205         __le32 period_bytes;    /* size of period in bytes */
 206         __le32 buffer_bytes;    /* size of buffer in bytes */
 207         __le32 channels;        /* channels */
 208         __le32 tdm_slot;        /* optional BE bitmask of supported TDM slots */
 209         __le32 dai_fmt;         /* SND_SOC_DAIFMT_  */
 210 } __attribute__((packed));
 211
 212 /*
 213  * Duplex stream configuration supported by SW/FW.
 214  */
 215 struct snd_soc_tplg_stream_config {
 216         __le32 size;            /* in bytes of this structure */
 217         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 218         struct snd_soc_tplg_stream playback;
 219         struct snd_soc_tplg_stream capture;
 220 } __attribute__((packed));
 221
 222 /*
 223  * Manifest. List totals for each payload type. Not used in parsing, but will
 224  * be passed to the component driver before any other objects in order for any
 225  * global componnent resource allocations.
 226  *
 227  * File block representation for manifest :-
 228  * +-----------------------------------+----+
 229  * | struct snd_soc_tplg_hdr           |  1 |
 230  * +-----------------------------------+----+
 231  * | struct snd_soc_tplg_manifest      |  1 |
 232  * +-----------------------------------+----+
 233  */
 234 struct snd_soc_tplg_manifest {
 235         __le32 size;            /* in bytes of this structure */
 236         __le32 control_elems;   /* number of control elements */
 237         __le32 widget_elems;    /* number of widget elements */
 238         __le32 graph_elems;     /* number of graph elements */
 239         __le32 dai_elems;       /* number of DAI elements */
 240         __le32 dai_link_elems;  /* number of DAI link elements */
 241 } __attribute__((packed));
 242
 243 /*
 244  * Mixer kcontrol.
 245  *
 246  * File block representation for mixer kcontrol :-
 247  * +-----------------------------------+----+
 248  * | struct snd_soc_tplg_hdr           |  1 |
 249  * +-----------------------------------+----+
 250  * | struct snd_soc_tplg_mixer_control |  N |
 251  * +-----------------------------------+----+
 252  */
 253 struct snd_soc_tplg_mixer_control {
 254         struct snd_soc_tplg_ctl_hdr hdr;
 255         __le32 size;    /* in bytes of this structure */
 256         __le32 min;
 257         __le32 max;
 258         __le32 platform_max;
 259         __le32 invert;
 260         __le32 num_channels;
 261         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 262         struct snd_soc_tplg_ctl_tlv tlv;
 263         struct snd_soc_tplg_private priv;
 264 } __attribute__((packed));
 265
 266 /*
 267  * Enumerated kcontrol
 268  *
 269  * File block representation for enum kcontrol :-
 270  * +-----------------------------------+----+
 271  * | struct snd_soc_tplg_hdr           |  1 |
 272  * +-----------------------------------+----+
 273  * | struct snd_soc_tplg_enum_control  |  N |
 274  * +-----------------------------------+----+
 275  */
 276 struct snd_soc_tplg_enum_control {
 277         struct snd_soc_tplg_ctl_hdr hdr;
 278         __le32 size;    /* in bytes of this structure */
 279         __le32 num_channels;
 280         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 281         __le32 items;
 282         __le32 mask;
 283         __le32 count;
 284         char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 285         __le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
 286         struct snd_soc_tplg_private priv;
 287 } __attribute__((packed));
 288
 289 /*
 290  * Bytes kcontrol
 291  *
 292  * File block representation for bytes kcontrol :-
 293  * +-----------------------------------+----+
 294  * | struct snd_soc_tplg_hdr           |  1 |
 295  * +-----------------------------------+----+
 296  * | struct snd_soc_tplg_bytes_control |  N |
 297  * +-----------------------------------+----+
 298  */
 299 struct snd_soc_tplg_bytes_control {
 300         struct snd_soc_tplg_ctl_hdr hdr;
 301         __le32 size;    /* in bytes of this structure */
 302         __le32 max;
 303         __le32 mask;
 304         __le32 base;
 305         __le32 num_regs;
 306         struct snd_soc_tplg_private priv;
 307 } __attribute__((packed));
 308
 309 /*
 310  * DAPM Graph Element
 311  *
 312  * File block representation for DAPM graph elements :-
 313  * +-------------------------------------+----+
 314  * | struct snd_soc_tplg_hdr             |  1 |
 315  * +-------------------------------------+----+
 316  * | struct snd_soc_tplg_dapm_graph_elem |  N |
 317  * +-------------------------------------+----+
 318  */
 319 struct snd_soc_tplg_dapm_graph_elem {
 320         char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 321         char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 322         char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 323 } __attribute__((packed));
 324
 325 /*
 326  * DAPM Widget.
 327  *
 328  * File block representation for DAPM widget :-
 329  * +-------------------------------------+-----+
 330  * | struct snd_soc_tplg_hdr             |  1  |
 331  * +-------------------------------------+-----+
 332  * | struct snd_soc_tplg_dapm_widget     |  N  |
 333  * +-------------------------------------+-----+
 334  * |   struct snd_soc_tplg_enum_control  | 0|1 |
 335  * |   struct snd_soc_tplg_mixer_control | 0|N |
 336  * +-------------------------------------+-----+
 337  *
 338  * Optional enum or mixer control can be appended to the end of each widget
 339  * in the block.
 340  */
 341 struct snd_soc_tplg_dapm_widget {
 342         __le32 size;            /* in bytes of this structure */
 343         __le32 id;              /* SND_SOC_DAPM_CTL */
 344         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 345         char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 346
 347         __le32 reg;             /* negative reg = no direct dapm */
 348         __le32 shift;           /* bits to shift */
 349         __le32 mask;            /* non-shifted mask */
 350         __u32 invert;           /* invert the power bit */
 351         __u32 ignore_suspend;   /* kept enabled over suspend */
 352         __u16 event_flags;
 353         __u16 event_type;
 354         __u16 num_kcontrols;
 355         struct snd_soc_tplg_private priv;
 356         /*
 357          * kcontrols that relate to this widget
 358          * follow here after widget private data
 359          */
 360 } __attribute__((packed));
 361
 362 struct snd_soc_tplg_pcm_cfg_caps {
 363         struct snd_soc_tplg_stream_caps caps;
 364         struct snd_soc_tplg_stream_config configs[SND_SOC_TPLG_STREAM_CONFIG_MAX];
 365         __le32 num_configs;     /* number of configs */
 366 } __attribute__((packed));
 367
 368 /*
 369  * Describes SW/FW specific features of PCM or DAI link.
 370  *
 371  * File block representation for PCM/DAI-Link :-
 372  * +-----------------------------------+-----+
 373  * | struct snd_soc_tplg_hdr           |  1  |
 374  * +-----------------------------------+-----+
 375  * | struct snd_soc_tplg_dapm_pcm_dai  |  N  |
 376  * +-----------------------------------+-----+
 377  */
 378 struct snd_soc_tplg_pcm_dai {
 379         __le32 size;            /* in bytes of this structure */
 380         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 381         __le32 id;                      /* unique ID - used to match */
 382         __le32 playback;                /* supports playback mode */
 383         __le32 capture;                 /* supports capture mode */
 384         __le32 compress;                /* 1 = compressed; 0 = PCM */
 385         struct snd_soc_tplg_pcm_cfg_caps capconf[2];    /* capabilities and configs */
 386 } __attribute__((packed));
 387
 388 #endif