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 556