include/uapi/sound/asoc.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * uapi/sound/asoc.h -- ALSA SoC Firmware Controls and DAPM
   4  *
   5  * Copyright (C) 2012 Texas Instruments Inc.
   6  * Copyright (C) 2015 Intel Corporation.
   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  * Simple file API to load FW that includes mixers, coefficients, DAPM graphs,
  13  * algorithms, equalisers, DAIs, widgets etc.
  14 */
  15
  16 #ifndef __LINUX_UAPI_SND_ASOC_H
  17 #define __LINUX_UAPI_SND_ASOC_H
  18
  19 #include <linux/types.h>
  20 #include <sound/asound.h>
  21
  22 /*
  23  * Maximum number of channels topology kcontrol can represent.
  24  */
  25 #define SND_SOC_TPLG_MAX_CHAN           8
  26
  27 /*
  28  * Maximum number of PCM formats capability
  29  */
  30 #define SND_SOC_TPLG_MAX_FORMATS        16
  31
  32 /*
  33  * Maximum number of PCM stream configs
  34  */
  35 #define SND_SOC_TPLG_STREAM_CONFIG_MAX  8
  36
  37 /*
  38  * Maximum number of physical link's hardware configs
  39  */
  40 #define SND_SOC_TPLG_HW_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_BUFFER        16
  78 #define SND_SOC_TPLG_DAPM_SCHEDULER     17
  79 #define SND_SOC_TPLG_DAPM_EFFECT        18
  80 #define SND_SOC_TPLG_DAPM_SIGGEN        19
  81 #define SND_SOC_TPLG_DAPM_SRC           20
  82 #define SND_SOC_TPLG_DAPM_ASRC          21
  83 #define SND_SOC_TPLG_DAPM_ENCODER       22
  84 #define SND_SOC_TPLG_DAPM_DECODER       23
  85 #define SND_SOC_TPLG_DAPM_LAST          SND_SOC_TPLG_DAPM_DECODER
  86
  87 /* Header magic number and string sizes */
  88 #define SND_SOC_TPLG_MAGIC              0x41536F43 /* ASoC */
  89
  90 /* string sizes */
  91 #define SND_SOC_TPLG_NUM_TEXTS          16
  92
  93 /* ABI version */
  94 #define SND_SOC_TPLG_ABI_VERSION        0x5     /* current version */
  95 #define SND_SOC_TPLG_ABI_VERSION_MIN    0x4     /* oldest version supported */
  96
  97 /* Max size of TLV data */
  98 #define SND_SOC_TPLG_TLV_SIZE           32
  99
 100 /*
 101  * File and Block header data types.
 102  * Add new generic and vendor types to end of list.
 103  * Generic types are handled by the core whilst vendors types are passed
 104  * to the component drivers for handling.
 105  */
 106 #define SND_SOC_TPLG_TYPE_MIXER         1
 107 #define SND_SOC_TPLG_TYPE_BYTES         2
 108 #define SND_SOC_TPLG_TYPE_ENUM          3
 109 #define SND_SOC_TPLG_TYPE_DAPM_GRAPH    4
 110 #define SND_SOC_TPLG_TYPE_DAPM_WIDGET   5
 111 #define SND_SOC_TPLG_TYPE_DAI_LINK      6
 112 #define SND_SOC_TPLG_TYPE_PCM           7
 113 #define SND_SOC_TPLG_TYPE_MANIFEST      8
 114 #define SND_SOC_TPLG_TYPE_CODEC_LINK    9
 115 #define SND_SOC_TPLG_TYPE_BACKEND_LINK  10
 116 #define SND_SOC_TPLG_TYPE_PDATA         11
 117 #define SND_SOC_TPLG_TYPE_DAI           12
 118 #define SND_SOC_TPLG_TYPE_MAX           SND_SOC_TPLG_TYPE_DAI
 119
 120 /* vendor block IDs - please add new vendor types to end */
 121 #define SND_SOC_TPLG_TYPE_VENDOR_FW     1000
 122 #define SND_SOC_TPLG_TYPE_VENDOR_CONFIG 1001
 123 #define SND_SOC_TPLG_TYPE_VENDOR_COEFF  1002
 124 #define SND_SOC_TPLG_TYPEVENDOR_CODEC   1003
 125
 126 #define SND_SOC_TPLG_STREAM_PLAYBACK    0
 127 #define SND_SOC_TPLG_STREAM_CAPTURE     1
 128
 129 /* vendor tuple types */
 130 #define SND_SOC_TPLG_TUPLE_TYPE_UUID    0
 131 #define SND_SOC_TPLG_TUPLE_TYPE_STRING  1
 132 #define SND_SOC_TPLG_TUPLE_TYPE_BOOL    2
 133 #define SND_SOC_TPLG_TUPLE_TYPE_BYTE    3
 134 #define SND_SOC_TPLG_TUPLE_TYPE_WORD    4
 135 #define SND_SOC_TPLG_TUPLE_TYPE_SHORT   5
 136
 137 /* DAI flags */
 138 #define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES         (1 << 0)
 139 #define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS      (1 << 1)
 140 #define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS    (1 << 2)
 141
 142 /* DAI physical PCM data formats.
 143  * Add new formats to the end of the list.
 144  */
 145 #define SND_SOC_DAI_FORMAT_I2S          1 /* I2S mode */
 146 #define SND_SOC_DAI_FORMAT_RIGHT_J      2 /* Right Justified mode */
 147 #define SND_SOC_DAI_FORMAT_LEFT_J       3 /* Left Justified mode */
 148 #define SND_SOC_DAI_FORMAT_DSP_A        4 /* L data MSB after FRM LRC */
 149 #define SND_SOC_DAI_FORMAT_DSP_B        5 /* L data MSB during FRM LRC */
 150 #define SND_SOC_DAI_FORMAT_AC97         6 /* AC97 */
 151 #define SND_SOC_DAI_FORMAT_PDM          7 /* Pulse density modulation */
 152
 153 /* left and right justified also known as MSB and LSB respectively */
 154 #define SND_SOC_DAI_FORMAT_MSB          SND_SOC_DAI_FORMAT_LEFT_J
 155 #define SND_SOC_DAI_FORMAT_LSB          SND_SOC_DAI_FORMAT_RIGHT_J
 156
 157 /* DAI link flags */
 158 #define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES         (1 << 0)
 159 #define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS      (1 << 1)
 160 #define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS    (1 << 2)
 161 #define SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP            (1 << 3)
 162
 163 /*
 164  * Block Header.
 165  * This header precedes all object and object arrays below.
 166  */
 167 struct snd_soc_tplg_hdr {
 168         __le32 magic;           /* magic number */
 169         __le32 abi;             /* ABI version */
 170         __le32 version;         /* optional vendor specific version details */
 171         __le32 type;            /* SND_SOC_TPLG_TYPE_ */
 172         __le32 size;            /* size of this structure */
 173         __le32 vendor_type;     /* optional vendor specific type info */
 174         __le32 payload_size;    /* data bytes, excluding this header */
 175         __le32 index;           /* identifier for block */
 176         __le32 count;           /* number of elements in block */
 177 } __attribute__((packed));
 178
 179 /* vendor tuple for uuid */
 180 struct snd_soc_tplg_vendor_uuid_elem {
 181         __le32 token;
 182         char uuid[16];
 183 } __attribute__((packed));
 184
 185 /* vendor tuple for a bool/byte/short/word value */
 186 struct snd_soc_tplg_vendor_value_elem {
 187         __le32 token;
 188         __le32 value;
 189 } __attribute__((packed));
 190
 191 /* vendor tuple for string */
 192 struct snd_soc_tplg_vendor_string_elem {
 193         __le32 token;
 194         char string[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 195 } __attribute__((packed));
 196
 197 struct snd_soc_tplg_vendor_array {
 198         __le32 size;    /* size in bytes of the array, including all elements */
 199         __le32 type;    /* SND_SOC_TPLG_TUPLE_TYPE_ */
 200         __le32 num_elems;       /* number of elements in array */
 201         union {
 202                 struct snd_soc_tplg_vendor_uuid_elem uuid[0];
 203                 struct snd_soc_tplg_vendor_value_elem value[0];
 204                 struct snd_soc_tplg_vendor_string_elem string[0];
 205         };
 206 } __attribute__((packed));
 207
 208 /*
 209  * Private data.
 210  * All topology objects may have private data that can be used by the driver or
 211  * firmware. Core will ignore this data.
 212  */
 213 struct snd_soc_tplg_private {
 214         __le32 size;    /* in bytes of private data */
 215         union {
 216                 char data[0];
 217                 struct snd_soc_tplg_vendor_array array[0];
 218         };
 219 } __attribute__((packed));
 220
 221 /*
 222  * Kcontrol TLV data.
 223  */
 224 struct snd_soc_tplg_tlv_dbscale {
 225         __le32 min;
 226         __le32 step;
 227         __le32 mute;
 228 } __attribute__((packed));
 229
 230 struct snd_soc_tplg_ctl_tlv {
 231         __le32 size;    /* in bytes of this structure */
 232         __le32 type;    /* SNDRV_CTL_TLVT_*, type of TLV */
 233         union {
 234                 __le32 data[SND_SOC_TPLG_TLV_SIZE];
 235                 struct snd_soc_tplg_tlv_dbscale scale;
 236         };
 237 } __attribute__((packed));
 238
 239 /*
 240  * Kcontrol channel data
 241  */
 242 struct snd_soc_tplg_channel {
 243         __le32 size;    /* in bytes of this structure */
 244         __le32 reg;
 245         __le32 shift;
 246         __le32 id;      /* ID maps to Left, Right, LFE etc */
 247 } __attribute__((packed));
 248
 249 /*
 250  * Genericl Operations IDs, for binding Kcontrol or Bytes ext ops
 251  * Kcontrol ops need get/put/info.
 252  * Bytes ext ops need get/put.
 253  */
 254 struct snd_soc_tplg_io_ops {
 255         __le32 get;
 256         __le32 put;
 257         __le32 info;
 258 } __attribute__((packed));
 259
 260 /*
 261  * kcontrol header
 262  */
 263 struct snd_soc_tplg_ctl_hdr {
 264         __le32 size;    /* in bytes of this structure */
 265         __le32 type;
 266         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 267         __le32 access;
 268         struct snd_soc_tplg_io_ops ops;
 269         struct snd_soc_tplg_ctl_tlv tlv;
 270 } __attribute__((packed));
 271
 272 /*
 273  * Stream Capabilities
 274  */
 275 struct snd_soc_tplg_stream_caps {
 276         __le32 size;            /* in bytes of this structure */
 277         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 278         __le64 formats; /* supported formats SNDRV_PCM_FMTBIT_* */
 279         __le32 rates;           /* supported rates SNDRV_PCM_RATE_* */
 280         __le32 rate_min;        /* min rate */
 281         __le32 rate_max;        /* max rate */
 282         __le32 channels_min;    /* min channels */
 283         __le32 channels_max;    /* max channels */
 284         __le32 periods_min;     /* min number of periods */
 285         __le32 periods_max;     /* max number of periods */
 286         __le32 period_size_min; /* min period size bytes */
 287         __le32 period_size_max; /* max period size bytes */
 288         __le32 buffer_size_min; /* min buffer size bytes */
 289         __le32 buffer_size_max; /* max buffer size bytes */
 290         __le32 sig_bits;        /* number of bits of content */
 291 } __attribute__((packed));
 292
 293 /*
 294  * FE or BE Stream configuration supported by SW/FW
 295  */
 296 struct snd_soc_tplg_stream {
 297         __le32 size;            /* in bytes of this structure */
 298         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* Name of the stream */
 299         __le64 format;          /* SNDRV_PCM_FMTBIT_* */
 300         __le32 rate;            /* SNDRV_PCM_RATE_* */
 301         __le32 period_bytes;    /* size of period in bytes */
 302         __le32 buffer_bytes;    /* size of buffer in bytes */
 303         __le32 channels;        /* channels */
 304 } __attribute__((packed));
 305
 306
 307 /*
 308  * Describes a physical link's runtime supported hardware config,
 309  * i.e. hardware audio formats.
 310  */
 311 struct snd_soc_tplg_hw_config {
 312         __le32 size;            /* in bytes of this structure */
 313         __le32 id;              /* unique ID - - used to match */
 314         __le32 fmt;             /* SND_SOC_DAI_FORMAT_ format value */
 315         __u8 clock_gated;       /* 1 if clock can be gated to save power */
 316         __u8 invert_bclk;       /* 1 for inverted BCLK, 0 for normal */
 317         __u8 invert_fsync;      /* 1 for inverted frame clock, 0 for normal */
 318         __u8 bclk_master;       /* 1 for master of BCLK, 0 for slave */
 319         __u8 fsync_master;      /* 1 for master of FSYNC, 0 for slave */
 320         __u8 mclk_direction;    /* 0 for input, 1 for output */
 321         __le16 reserved;        /* for 32bit alignment */
 322         __le32 mclk_rate;       /* MCLK or SYSCLK freqency in Hz */
 323         __le32 bclk_rate;       /* BCLK freqency in Hz */
 324         __le32 fsync_rate;      /* frame clock in Hz */
 325         __le32 tdm_slots;       /* number of TDM slots in use */
 326         __le32 tdm_slot_width;  /* width in bits for each slot */
 327         __le32 tx_slots;        /* bit mask for active Tx slots */
 328         __le32 rx_slots;        /* bit mask for active Rx slots */
 329         __le32 tx_channels;     /* number of Tx channels */
 330         __le32 tx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
 331         __le32 rx_channels;     /* number of Rx channels */
 332         __le32 rx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
 333 } __attribute__((packed));
 334
 335 /*
 336  * Manifest. List totals for each payload type. Not used in parsing, but will
 337  * be passed to the component driver before any other objects in order for any
 338  * global component resource allocations.
 339  *
 340  * File block representation for manifest :-
 341  * +-----------------------------------+----+
 342  * | struct snd_soc_tplg_hdr           |  1 |
 343  * +-----------------------------------+----+
 344  * | struct snd_soc_tplg_manifest      |  1 |
 345  * +-----------------------------------+----+
 346  */
 347 struct snd_soc_tplg_manifest {
 348         __le32 size;            /* in bytes of this structure */
 349         __le32 control_elems;   /* number of control elements */
 350         __le32 widget_elems;    /* number of widget elements */
 351         __le32 graph_elems;     /* number of graph elements */
 352         __le32 pcm_elems;       /* number of PCM elements */
 353         __le32 dai_link_elems;  /* number of DAI link elements */
 354         __le32 dai_elems;       /* number of physical DAI elements */
 355         __le32 reserved[20];    /* reserved for new ABI element types */
 356         struct snd_soc_tplg_private priv;
 357 } __attribute__((packed));
 358
 359 /*
 360  * Mixer kcontrol.
 361  *
 362  * File block representation for mixer kcontrol :-
 363  * +-----------------------------------+----+
 364  * | struct snd_soc_tplg_hdr           |  1 |
 365  * +-----------------------------------+----+
 366  * | struct snd_soc_tplg_mixer_control |  N |
 367  * +-----------------------------------+----+
 368  */
 369 struct snd_soc_tplg_mixer_control {
 370         struct snd_soc_tplg_ctl_hdr hdr;
 371         __le32 size;    /* in bytes of this structure */
 372         __le32 min;
 373         __le32 max;
 374         __le32 platform_max;
 375         __le32 invert;
 376         __le32 num_channels;
 377         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 378         struct snd_soc_tplg_private priv;
 379 } __attribute__((packed));
 380
 381 /*
 382  * Enumerated kcontrol
 383  *
 384  * File block representation for enum kcontrol :-
 385  * +-----------------------------------+----+
 386  * | struct snd_soc_tplg_hdr           |  1 |
 387  * +-----------------------------------+----+
 388  * | struct snd_soc_tplg_enum_control  |  N |
 389  * +-----------------------------------+----+
 390  */
 391 struct snd_soc_tplg_enum_control {
 392         struct snd_soc_tplg_ctl_hdr hdr;
 393         __le32 size;    /* in bytes of this structure */
 394         __le32 num_channels;
 395         struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
 396         __le32 items;
 397         __le32 mask;
 398         __le32 count;
 399         char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 400         __le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
 401         struct snd_soc_tplg_private priv;
 402 } __attribute__((packed));
 403
 404 /*
 405  * Bytes kcontrol
 406  *
 407  * File block representation for bytes kcontrol :-
 408  * +-----------------------------------+----+
 409  * | struct snd_soc_tplg_hdr           |  1 |
 410  * +-----------------------------------+----+
 411  * | struct snd_soc_tplg_bytes_control |  N |
 412  * +-----------------------------------+----+
 413  */
 414 struct snd_soc_tplg_bytes_control {
 415         struct snd_soc_tplg_ctl_hdr hdr;
 416         __le32 size;    /* in bytes of this structure */
 417         __le32 max;
 418         __le32 mask;
 419         __le32 base;
 420         __le32 num_regs;
 421         struct snd_soc_tplg_io_ops ext_ops;
 422         struct snd_soc_tplg_private priv;
 423 } __attribute__((packed));
 424
 425 /*
 426  * DAPM Graph Element
 427  *
 428  * File block representation for DAPM graph elements :-
 429  * +-------------------------------------+----+
 430  * | struct snd_soc_tplg_hdr             |  1 |
 431  * +-------------------------------------+----+
 432  * | struct snd_soc_tplg_dapm_graph_elem |  N |
 433  * +-------------------------------------+----+
 434  */
 435 struct snd_soc_tplg_dapm_graph_elem {
 436         char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 437         char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 438         char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 439 } __attribute__((packed));
 440
 441 /*
 442  * DAPM Widget.
 443  *
 444  * File block representation for DAPM widget :-
 445  * +-------------------------------------+-----+
 446  * | struct snd_soc_tplg_hdr             |  1  |
 447  * +-------------------------------------+-----+
 448  * | struct snd_soc_tplg_dapm_widget     |  N  |
 449  * +-------------------------------------+-----+
 450  * |   struct snd_soc_tplg_enum_control  | 0|1 |
 451  * |   struct snd_soc_tplg_mixer_control | 0|N |
 452  * +-------------------------------------+-----+
 453  *
 454  * Optional enum or mixer control can be appended to the end of each widget
 455  * in the block.
 456  */
 457 struct snd_soc_tplg_dapm_widget {
 458         __le32 size;            /* in bytes of this structure */
 459         __le32 id;              /* SND_SOC_DAPM_CTL */
 460         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 461         char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 462
 463         __le32 reg;             /* negative reg = no direct dapm */
 464         __le32 shift;           /* bits to shift */
 465         __le32 mask;            /* non-shifted mask */
 466         __le32 subseq;          /* sort within widget type */
 467         __le32 invert;          /* invert the power bit */
 468         __le32 ignore_suspend;  /* kept enabled over suspend */
 469         __le16 event_flags;
 470         __le16 event_type;
 471         __le32 num_kcontrols;
 472         struct snd_soc_tplg_private priv;
 473         /*
 474          * kcontrols that relate to this widget
 475          * follow here after widget private data
 476          */
 477 } __attribute__((packed));
 478
 479
 480 /*
 481  * Describes SW/FW specific features of PCM (FE DAI & DAI link).
 482  *
 483  * File block representation for PCM :-
 484  * +-----------------------------------+-----+
 485  * | struct snd_soc_tplg_hdr           |  1  |
 486  * +-----------------------------------+-----+
 487  * | struct snd_soc_tplg_pcm           |  N  |
 488  * +-----------------------------------+-----+
 489  */
 490 struct snd_soc_tplg_pcm {
 491         __le32 size;            /* in bytes of this structure */
 492         char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 493         char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
 494         __le32 pcm_id;          /* unique ID - used to match with DAI link */
 495         __le32 dai_id;          /* unique ID - used to match */
 496         __le32 playback;        /* supports playback mode */
 497         __le32 capture;         /* supports capture mode */
 498         __le32 compress;        /* 1 = compressed; 0 = PCM */
 499         struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */
 500         __le32 num_streams;     /* number of streams */
 501         struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
 502         __le32 flag_mask;       /* bitmask of flags to configure */
 503         __le32 flags;           /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
 504         struct snd_soc_tplg_private priv;
 505 } __attribute__((packed));
 506
 507
 508 /*
 509  * Describes the physical link runtime supported configs or params
 510  *
 511  * File block representation for physical link config :-
 512  * +-----------------------------------+-----+
 513  * | struct snd_soc_tplg_hdr           |  1  |
 514  * +-----------------------------------+-----+
 515  * | struct snd_soc_tplg_link_config   |  N  |
 516  * +-----------------------------------+-----+
 517  */
 518 struct snd_soc_tplg_link_config {
 519         __le32 size;            /* in bytes of this structure */
 520         __le32 id;              /* unique ID - used to match */
 521         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
 522         char stream_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* stream name - used to match */
 523         struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */
 524         __le32 num_streams;     /* number of streams */
 525         struct snd_soc_tplg_hw_config hw_config[SND_SOC_TPLG_HW_CONFIG_MAX]; /* hw configs */
 526         __le32 num_hw_configs;         /* number of hw configs */
 527         __le32 default_hw_config_id;   /* default hw config ID for init */
 528         __le32 flag_mask;       /* bitmask of flags to configure */
 529         __le32 flags;           /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
 530         struct snd_soc_tplg_private priv;
 531 } __attribute__((packed));
 532
 533 /*
 534  * Describes SW/FW specific features of physical DAI.
 535  * It can be used to configure backend DAIs for DPCM.
 536  *
 537  * File block representation for physical DAI :-
 538  * +-----------------------------------+-----+
 539  * | struct snd_soc_tplg_hdr           |  1  |
 540  * +-----------------------------------+-----+
 541  * | struct snd_soc_tplg_dai           |  N  |
 542  * +-----------------------------------+-----+
 543  */
 544 struct snd_soc_tplg_dai {
 545         __le32 size;            /* in bytes of this structure */
 546         char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
 547         __le32 dai_id;          /* unique ID - used to match */
 548         __le32 playback;        /* supports playback mode */
 549         __le32 capture;         /* supports capture mode */
 550         struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
 551         __le32 flag_mask;       /* bitmask of flags to configure */
 552         __le32 flags;           /* SND_SOC_TPLG_DAI_FLGBIT_* */
 553         struct snd_soc_tplg_private priv;
 554 } __attribute__((packed));
 555 #endif