1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3 * uapi/sound/asoc.h -- ALSA SoC Firmware Controls and DAPM
5 * Copyright (C) 2012 Texas Instruments Inc.
6 * Copyright (C) 2015 Intel Corporation.
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.
12 * Simple file API to load FW that includes mixers, coefficients, DAPM graphs,
13 * algorithms, equalisers, DAIs, widgets etc.
16 #ifndef __LINUX_UAPI_SND_ASOC_H
17 #define __LINUX_UAPI_SND_ASOC_H
19 #include <linux/types.h>
20 #include <sound/asound.h>
23 * Maximum number of channels topology kcontrol can represent.
25 #define SND_SOC_TPLG_MAX_CHAN 8
28 * Maximum number of PCM formats capability
30 #define SND_SOC_TPLG_MAX_FORMATS 16
33 * Maximum number of PCM stream configs
35 #define SND_SOC_TPLG_STREAM_CONFIG_MAX 8
38 * Maximum number of physical link's hardware configs
40 #define SND_SOC_TPLG_HW_CONFIG_MAX 8
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
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
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
87 /* Header magic number and string sizes */
88 #define SND_SOC_TPLG_MAGIC 0x41536F43 /* ASoC */
91 #define SND_SOC_TPLG_NUM_TEXTS 16
94 #define SND_SOC_TPLG_ABI_VERSION 0x5 /* current version */
95 #define SND_SOC_TPLG_ABI_VERSION_MIN 0x4 /* oldest version supported */
97 /* Max size of TLV data */
98 #define SND_SOC_TPLG_TLV_SIZE 32
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.
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
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
126 #define SND_SOC_TPLG_STREAM_PLAYBACK 0
127 #define SND_SOC_TPLG_STREAM_CAPTURE 1
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
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)
142 /* DAI clock gating */
143 #define SND_SOC_TPLG_DAI_CLK_GATE_UNDEFINED 0
144 #define SND_SOC_TPLG_DAI_CLK_GATE_GATED 1
145 #define SND_SOC_TPLG_DAI_CLK_GATE_CONT 2
147 /* DAI physical PCM data formats.
148 * Add new formats to the end of the list.
150 #define SND_SOC_DAI_FORMAT_I2S 1 /* I2S mode */
151 #define SND_SOC_DAI_FORMAT_RIGHT_J 2 /* Right Justified mode */
152 #define SND_SOC_DAI_FORMAT_LEFT_J 3 /* Left Justified mode */
153 #define SND_SOC_DAI_FORMAT_DSP_A 4 /* L data MSB after FRM LRC */
154 #define SND_SOC_DAI_FORMAT_DSP_B 5 /* L data MSB during FRM LRC */
155 #define SND_SOC_DAI_FORMAT_AC97 6 /* AC97 */
156 #define SND_SOC_DAI_FORMAT_PDM 7 /* Pulse density modulation */
158 /* left and right justified also known as MSB and LSB respectively */
159 #define SND_SOC_DAI_FORMAT_MSB SND_SOC_DAI_FORMAT_LEFT_J
160 #define SND_SOC_DAI_FORMAT_LSB SND_SOC_DAI_FORMAT_RIGHT_J
163 #define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES (1 << 0)
164 #define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS (1 << 1)
165 #define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS (1 << 2)
166 #define SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP (1 << 3)
168 /* DAI topology BCLK parameter
169 * For the backwards capability, by default codec is bclk master
171 #define SND_SOC_TPLG_BCLK_CM 0 /* codec is bclk master */
172 #define SND_SOC_TPLG_BCLK_CS 1 /* codec is bclk slave */
174 /* DAI topology FSYNC parameter
175 * For the backwards capability, by default codec is fsync master
177 #define SND_SOC_TPLG_FSYNC_CM 0 /* codec is fsync master */
178 #define SND_SOC_TPLG_FSYNC_CS 1 /* codec is fsync slave */
182 * This header precedes all object and object arrays below.
184 struct snd_soc_tplg_hdr {
185 __le32 magic; /* magic number */
186 __le32 abi; /* ABI version */
187 __le32 version; /* optional vendor specific version details */
188 __le32 type; /* SND_SOC_TPLG_TYPE_ */
189 __le32 size; /* size of this structure */
190 __le32 vendor_type; /* optional vendor specific type info */
191 __le32 payload_size; /* data bytes, excluding this header */
192 __le32 index; /* identifier for block */
193 __le32 count; /* number of elements in block */
194 } __attribute__((packed));
196 /* vendor tuple for uuid */
197 struct snd_soc_tplg_vendor_uuid_elem {
200 } __attribute__((packed));
202 /* vendor tuple for a bool/byte/short/word value */
203 struct snd_soc_tplg_vendor_value_elem {
206 } __attribute__((packed));
208 /* vendor tuple for string */
209 struct snd_soc_tplg_vendor_string_elem {
211 char string[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
212 } __attribute__((packed));
214 struct snd_soc_tplg_vendor_array {
215 __le32 size; /* size in bytes of the array, including all elements */
216 __le32 type; /* SND_SOC_TPLG_TUPLE_TYPE_ */
217 __le32 num_elems; /* number of elements in array */
219 struct snd_soc_tplg_vendor_uuid_elem uuid[0];
220 struct snd_soc_tplg_vendor_value_elem value[0];
221 struct snd_soc_tplg_vendor_string_elem string[0];
223 } __attribute__((packed));
227 * All topology objects may have private data that can be used by the driver or
228 * firmware. Core will ignore this data.
230 struct snd_soc_tplg_private {
231 __le32 size; /* in bytes of private data */
234 struct snd_soc_tplg_vendor_array array[0];
236 } __attribute__((packed));
241 struct snd_soc_tplg_tlv_dbscale {
245 } __attribute__((packed));
247 struct snd_soc_tplg_ctl_tlv {
248 __le32 size; /* in bytes of this structure */
249 __le32 type; /* SNDRV_CTL_TLVT_*, type of TLV */
251 __le32 data[SND_SOC_TPLG_TLV_SIZE];
252 struct snd_soc_tplg_tlv_dbscale scale;
254 } __attribute__((packed));
257 * Kcontrol channel data
259 struct snd_soc_tplg_channel {
260 __le32 size; /* in bytes of this structure */
263 __le32 id; /* ID maps to Left, Right, LFE etc */
264 } __attribute__((packed));
267 * Genericl Operations IDs, for binding Kcontrol or Bytes ext ops
268 * Kcontrol ops need get/put/info.
269 * Bytes ext ops need get/put.
271 struct snd_soc_tplg_io_ops {
275 } __attribute__((packed));
280 struct snd_soc_tplg_ctl_hdr {
281 __le32 size; /* in bytes of this structure */
283 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
285 struct snd_soc_tplg_io_ops ops;
286 struct snd_soc_tplg_ctl_tlv tlv;
287 } __attribute__((packed));
290 * Stream Capabilities
292 struct snd_soc_tplg_stream_caps {
293 __le32 size; /* in bytes of this structure */
294 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
295 __le64 formats; /* supported formats SNDRV_PCM_FMTBIT_* */
296 __le32 rates; /* supported rates SNDRV_PCM_RATE_* */
297 __le32 rate_min; /* min rate */
298 __le32 rate_max; /* max rate */
299 __le32 channels_min; /* min channels */
300 __le32 channels_max; /* max channels */
301 __le32 periods_min; /* min number of periods */
302 __le32 periods_max; /* max number of periods */
303 __le32 period_size_min; /* min period size bytes */
304 __le32 period_size_max; /* max period size bytes */
305 __le32 buffer_size_min; /* min buffer size bytes */
306 __le32 buffer_size_max; /* max buffer size bytes */
307 __le32 sig_bits; /* number of bits of content */
308 } __attribute__((packed));
311 * FE or BE Stream configuration supported by SW/FW
313 struct snd_soc_tplg_stream {
314 __le32 size; /* in bytes of this structure */
315 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* Name of the stream */
316 __le64 format; /* SNDRV_PCM_FMTBIT_* */
317 __le32 rate; /* SNDRV_PCM_RATE_* */
318 __le32 period_bytes; /* size of period in bytes */
319 __le32 buffer_bytes; /* size of buffer in bytes */
320 __le32 channels; /* channels */
321 } __attribute__((packed));
325 * Describes a physical link's runtime supported hardware config,
326 * i.e. hardware audio formats.
328 struct snd_soc_tplg_hw_config {
329 __le32 size; /* in bytes of this structure */
330 __le32 id; /* unique ID - - used to match */
331 __le32 fmt; /* SND_SOC_DAI_FORMAT_ format value */
332 __u8 clock_gated; /* SND_SOC_TPLG_DAI_CLK_GATE_ value */
333 __u8 invert_bclk; /* 1 for inverted BCLK, 0 for normal */
334 __u8 invert_fsync; /* 1 for inverted frame clock, 0 for normal */
335 __u8 bclk_master; /* SND_SOC_TPLG_BCLK_ value */
336 __u8 fsync_master; /* SND_SOC_TPLG_FSYNC_ value */
337 __u8 mclk_direction; /* 0 for input, 1 for output */
338 __le16 reserved; /* for 32bit alignment */
339 __le32 mclk_rate; /* MCLK or SYSCLK freqency in Hz */
340 __le32 bclk_rate; /* BCLK freqency in Hz */
341 __le32 fsync_rate; /* frame clock in Hz */
342 __le32 tdm_slots; /* number of TDM slots in use */
343 __le32 tdm_slot_width; /* width in bits for each slot */
344 __le32 tx_slots; /* bit mask for active Tx slots */
345 __le32 rx_slots; /* bit mask for active Rx slots */
346 __le32 tx_channels; /* number of Tx channels */
347 __le32 tx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
348 __le32 rx_channels; /* number of Rx channels */
349 __le32 rx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
350 } __attribute__((packed));
353 * Manifest. List totals for each payload type. Not used in parsing, but will
354 * be passed to the component driver before any other objects in order for any
355 * global component resource allocations.
357 * File block representation for manifest :-
358 * +-----------------------------------+----+
359 * | struct snd_soc_tplg_hdr | 1 |
360 * +-----------------------------------+----+
361 * | struct snd_soc_tplg_manifest | 1 |
362 * +-----------------------------------+----+
364 struct snd_soc_tplg_manifest {
365 __le32 size; /* in bytes of this structure */
366 __le32 control_elems; /* number of control elements */
367 __le32 widget_elems; /* number of widget elements */
368 __le32 graph_elems; /* number of graph elements */
369 __le32 pcm_elems; /* number of PCM elements */
370 __le32 dai_link_elems; /* number of DAI link elements */
371 __le32 dai_elems; /* number of physical DAI elements */
372 __le32 reserved[20]; /* reserved for new ABI element types */
373 struct snd_soc_tplg_private priv;
374 } __attribute__((packed));
379 * File block representation for mixer kcontrol :-
380 * +-----------------------------------+----+
381 * | struct snd_soc_tplg_hdr | 1 |
382 * +-----------------------------------+----+
383 * | struct snd_soc_tplg_mixer_control | N |
384 * +-----------------------------------+----+
386 struct snd_soc_tplg_mixer_control {
387 struct snd_soc_tplg_ctl_hdr hdr;
388 __le32 size; /* in bytes of this structure */
394 struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
395 struct snd_soc_tplg_private priv;
396 } __attribute__((packed));
399 * Enumerated kcontrol
401 * File block representation for enum kcontrol :-
402 * +-----------------------------------+----+
403 * | struct snd_soc_tplg_hdr | 1 |
404 * +-----------------------------------+----+
405 * | struct snd_soc_tplg_enum_control | N |
406 * +-----------------------------------+----+
408 struct snd_soc_tplg_enum_control {
409 struct snd_soc_tplg_ctl_hdr hdr;
410 __le32 size; /* in bytes of this structure */
412 struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
416 char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
417 __le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
418 struct snd_soc_tplg_private priv;
419 } __attribute__((packed));
424 * File block representation for bytes kcontrol :-
425 * +-----------------------------------+----+
426 * | struct snd_soc_tplg_hdr | 1 |
427 * +-----------------------------------+----+
428 * | struct snd_soc_tplg_bytes_control | N |
429 * +-----------------------------------+----+
431 struct snd_soc_tplg_bytes_control {
432 struct snd_soc_tplg_ctl_hdr hdr;
433 __le32 size; /* in bytes of this structure */
438 struct snd_soc_tplg_io_ops ext_ops;
439 struct snd_soc_tplg_private priv;
440 } __attribute__((packed));
445 * File block representation for DAPM graph elements :-
446 * +-------------------------------------+----+
447 * | struct snd_soc_tplg_hdr | 1 |
448 * +-------------------------------------+----+
449 * | struct snd_soc_tplg_dapm_graph_elem | N |
450 * +-------------------------------------+----+
452 struct snd_soc_tplg_dapm_graph_elem {
453 char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
454 char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
455 char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
456 } __attribute__((packed));
461 * File block representation for DAPM widget :-
462 * +-------------------------------------+-----+
463 * | struct snd_soc_tplg_hdr | 1 |
464 * +-------------------------------------+-----+
465 * | struct snd_soc_tplg_dapm_widget | N |
466 * +-------------------------------------+-----+
467 * | struct snd_soc_tplg_enum_control | 0|1 |
468 * | struct snd_soc_tplg_mixer_control | 0|N |
469 * +-------------------------------------+-----+
471 * Optional enum or mixer control can be appended to the end of each widget
474 struct snd_soc_tplg_dapm_widget {
475 __le32 size; /* in bytes of this structure */
476 __le32 id; /* SND_SOC_DAPM_CTL */
477 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
478 char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
480 __le32 reg; /* negative reg = no direct dapm */
481 __le32 shift; /* bits to shift */
482 __le32 mask; /* non-shifted mask */
483 __le32 subseq; /* sort within widget type */
484 __le32 invert; /* invert the power bit */
485 __le32 ignore_suspend; /* kept enabled over suspend */
488 __le32 num_kcontrols;
489 struct snd_soc_tplg_private priv;
491 * kcontrols that relate to this widget
492 * follow here after widget private data
494 } __attribute__((packed));
498 * Describes SW/FW specific features of PCM (FE DAI & DAI link).
500 * File block representation for PCM :-
501 * +-----------------------------------+-----+
502 * | struct snd_soc_tplg_hdr | 1 |
503 * +-----------------------------------+-----+
504 * | struct snd_soc_tplg_pcm | N |
505 * +-----------------------------------+-----+
507 struct snd_soc_tplg_pcm {
508 __le32 size; /* in bytes of this structure */
509 char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
510 char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
511 __le32 pcm_id; /* unique ID - used to match with DAI link */
512 __le32 dai_id; /* unique ID - used to match */
513 __le32 playback; /* supports playback mode */
514 __le32 capture; /* supports capture mode */
515 __le32 compress; /* 1 = compressed; 0 = PCM */
516 struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */
517 __le32 num_streams; /* number of streams */
518 struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
519 __le32 flag_mask; /* bitmask of flags to configure */
520 __le32 flags; /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
521 struct snd_soc_tplg_private priv;
522 } __attribute__((packed));
526 * Describes the physical link runtime supported configs or params
528 * File block representation for physical link config :-
529 * +-----------------------------------+-----+
530 * | struct snd_soc_tplg_hdr | 1 |
531 * +-----------------------------------+-----+
532 * | struct snd_soc_tplg_link_config | N |
533 * +-----------------------------------+-----+
535 struct snd_soc_tplg_link_config {
536 __le32 size; /* in bytes of this structure */
537 __le32 id; /* unique ID - used to match */
538 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
539 char stream_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* stream name - used to match */
540 struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */
541 __le32 num_streams; /* number of streams */
542 struct snd_soc_tplg_hw_config hw_config[SND_SOC_TPLG_HW_CONFIG_MAX]; /* hw configs */
543 __le32 num_hw_configs; /* number of hw configs */
544 __le32 default_hw_config_id; /* default hw config ID for init */
545 __le32 flag_mask; /* bitmask of flags to configure */
546 __le32 flags; /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
547 struct snd_soc_tplg_private priv;
548 } __attribute__((packed));
551 * Describes SW/FW specific features of physical DAI.
552 * It can be used to configure backend DAIs for DPCM.
554 * File block representation for physical DAI :-
555 * +-----------------------------------+-----+
556 * | struct snd_soc_tplg_hdr | 1 |
557 * +-----------------------------------+-----+
558 * | struct snd_soc_tplg_dai | N |
559 * +-----------------------------------+-----+
561 struct snd_soc_tplg_dai {
562 __le32 size; /* in bytes of this structure */
563 char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
564 __le32 dai_id; /* unique ID - used to match */
565 __le32 playback; /* supports playback mode */
566 __le32 capture; /* supports capture mode */
567 struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
568 __le32 flag_mask; /* bitmask of flags to configure */
569 __le32 flags; /* SND_SOC_TPLG_DAI_FLGBIT_* */
570 struct snd_soc_tplg_private priv;
571 } __attribute__((packed));