tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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/*
37 * Maximum number of physical link's hardware configs
38 */
39#define SND_SOC_TPLG_HW_CONFIG_MAX 8
40
41/* individual kcontrol info types - can be mixed with other types */
42#define SND_SOC_TPLG_CTL_VOLSW 1
43#define SND_SOC_TPLG_CTL_VOLSW_SX 2
44#define SND_SOC_TPLG_CTL_VOLSW_XR_SX 3
45#define SND_SOC_TPLG_CTL_ENUM 4
46#define SND_SOC_TPLG_CTL_BYTES 5
47#define SND_SOC_TPLG_CTL_ENUM_VALUE 6
48#define SND_SOC_TPLG_CTL_RANGE 7
49#define SND_SOC_TPLG_CTL_STROBE 8
50
51
52/* individual widget kcontrol info types - can be mixed with other types */
53#define SND_SOC_TPLG_DAPM_CTL_VOLSW 64
54#define SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE 65
55#define SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT 66
56#define SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE 67
57#define SND_SOC_TPLG_DAPM_CTL_PIN 68
58
59/* DAPM widget types - add new items to the end */
60#define SND_SOC_TPLG_DAPM_INPUT 0
61#define SND_SOC_TPLG_DAPM_OUTPUT 1
62#define SND_SOC_TPLG_DAPM_MUX 2
63#define SND_SOC_TPLG_DAPM_MIXER 3
64#define SND_SOC_TPLG_DAPM_PGA 4
65#define SND_SOC_TPLG_DAPM_OUT_DRV 5
66#define SND_SOC_TPLG_DAPM_ADC 6
67#define SND_SOC_TPLG_DAPM_DAC 7
68#define SND_SOC_TPLG_DAPM_SWITCH 8
69#define SND_SOC_TPLG_DAPM_PRE 9
70#define SND_SOC_TPLG_DAPM_POST 10
71#define SND_SOC_TPLG_DAPM_AIF_IN 11
72#define SND_SOC_TPLG_DAPM_AIF_OUT 12
73#define SND_SOC_TPLG_DAPM_DAI_IN 13
74#define SND_SOC_TPLG_DAPM_DAI_OUT 14
75#define SND_SOC_TPLG_DAPM_DAI_LINK 15
76#define SND_SOC_TPLG_DAPM_LAST SND_SOC_TPLG_DAPM_DAI_LINK
77
78/* Header magic number and string sizes */
79#define SND_SOC_TPLG_MAGIC 0x41536F43 /* ASoC */
80
81/* string sizes */
82#define SND_SOC_TPLG_NUM_TEXTS 16
83
84/* ABI version */
85#define SND_SOC_TPLG_ABI_VERSION 0x5 /* current version */
86#define SND_SOC_TPLG_ABI_VERSION_MIN 0x4 /* oldest version supported */
87
88/* Max size of TLV data */
89#define SND_SOC_TPLG_TLV_SIZE 32
90
91/*
92 * File and Block header data types.
93 * Add new generic and vendor types to end of list.
94 * Generic types are handled by the core whilst vendors types are passed
95 * to the component drivers for handling.
96 */
97#define SND_SOC_TPLG_TYPE_MIXER 1
98#define SND_SOC_TPLG_TYPE_BYTES 2
99#define SND_SOC_TPLG_TYPE_ENUM 3
100#define SND_SOC_TPLG_TYPE_DAPM_GRAPH 4
101#define SND_SOC_TPLG_TYPE_DAPM_WIDGET 5
102#define SND_SOC_TPLG_TYPE_DAI_LINK 6
103#define SND_SOC_TPLG_TYPE_PCM 7
104#define SND_SOC_TPLG_TYPE_MANIFEST 8
105#define SND_SOC_TPLG_TYPE_CODEC_LINK 9
106#define SND_SOC_TPLG_TYPE_BACKEND_LINK 10
107#define SND_SOC_TPLG_TYPE_PDATA 11
108#define SND_SOC_TPLG_TYPE_DAI 12
109#define SND_SOC_TPLG_TYPE_MAX SND_SOC_TPLG_TYPE_DAI
110
111/* vendor block IDs - please add new vendor types to end */
112#define SND_SOC_TPLG_TYPE_VENDOR_FW 1000
113#define SND_SOC_TPLG_TYPE_VENDOR_CONFIG 1001
114#define SND_SOC_TPLG_TYPE_VENDOR_COEFF 1002
115#define SND_SOC_TPLG_TYPEVENDOR_CODEC 1003
116
117#define SND_SOC_TPLG_STREAM_PLAYBACK 0
118#define SND_SOC_TPLG_STREAM_CAPTURE 1
119
120/* vendor tuple types */
121#define SND_SOC_TPLG_TUPLE_TYPE_UUID 0
122#define SND_SOC_TPLG_TUPLE_TYPE_STRING 1
123#define SND_SOC_TPLG_TUPLE_TYPE_BOOL 2
124#define SND_SOC_TPLG_TUPLE_TYPE_BYTE 3
125#define SND_SOC_TPLG_TUPLE_TYPE_WORD 4
126#define SND_SOC_TPLG_TUPLE_TYPE_SHORT 5
127
128/* DAI flags */
129#define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES (1 << 0)
130#define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS (1 << 1)
131#define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS (1 << 2)
132
133/* DAI physical PCM data formats.
134 * Add new formats to the end of the list.
135 */
136#define SND_SOC_DAI_FORMAT_I2S 1 /* I2S mode */
137#define SND_SOC_DAI_FORMAT_RIGHT_J 2 /* Right Justified mode */
138#define SND_SOC_DAI_FORMAT_LEFT_J 3 /* Left Justified mode */
139#define SND_SOC_DAI_FORMAT_DSP_A 4 /* L data MSB after FRM LRC */
140#define SND_SOC_DAI_FORMAT_DSP_B 5 /* L data MSB during FRM LRC */
141#define SND_SOC_DAI_FORMAT_AC97 6 /* AC97 */
142#define SND_SOC_DAI_FORMAT_PDM 7 /* Pulse density modulation */
143
144/* left and right justified also known as MSB and LSB respectively */
145#define SND_SOC_DAI_FORMAT_MSB SND_SOC_DAI_FORMAT_LEFT_J
146#define SND_SOC_DAI_FORMAT_LSB SND_SOC_DAI_FORMAT_RIGHT_J
147
148/* DAI link flags */
149#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES (1 << 0)
150#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS (1 << 1)
151#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS (1 << 2)
152#define SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP (1 << 3)
153
154/*
155 * Block Header.
156 * This header precedes all object and object arrays below.
157 */
158struct snd_soc_tplg_hdr {
159 __le32 magic; /* magic number */
160 __le32 abi; /* ABI version */
161 __le32 version; /* optional vendor specific version details */
162 __le32 type; /* SND_SOC_TPLG_TYPE_ */
163 __le32 size; /* size of this structure */
164 __le32 vendor_type; /* optional vendor specific type info */
165 __le32 payload_size; /* data bytes, excluding this header */
166 __le32 index; /* identifier for block */
167 __le32 count; /* number of elements in block */
168} __attribute__((packed));
169
170/* vendor tuple for uuid */
171struct snd_soc_tplg_vendor_uuid_elem {
172 __le32 token;
173 char uuid[16];
174} __attribute__((packed));
175
176/* vendor tuple for a bool/byte/short/word value */
177struct snd_soc_tplg_vendor_value_elem {
178 __le32 token;
179 __le32 value;
180} __attribute__((packed));
181
182/* vendor tuple for string */
183struct snd_soc_tplg_vendor_string_elem {
184 __le32 token;
185 char string[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
186} __attribute__((packed));
187
188struct snd_soc_tplg_vendor_array {
189 __le32 size; /* size in bytes of the array, including all elements */
190 __le32 type; /* SND_SOC_TPLG_TUPLE_TYPE_ */
191 __le32 num_elems; /* number of elements in array */
192 union {
193 struct snd_soc_tplg_vendor_uuid_elem uuid[0];
194 struct snd_soc_tplg_vendor_value_elem value[0];
195 struct snd_soc_tplg_vendor_string_elem string[0];
196 };
197} __attribute__((packed));
198
199/*
200 * Private data.
201 * All topology objects may have private data that can be used by the driver or
202 * firmware. Core will ignore this data.
203 */
204struct snd_soc_tplg_private {
205 __le32 size; /* in bytes of private data */
206 union {
207 char data[0];
208 struct snd_soc_tplg_vendor_array array[0];
209 };
210} __attribute__((packed));
211
212/*
213 * Kcontrol TLV data.
214 */
215struct snd_soc_tplg_tlv_dbscale {
216 __le32 min;
217 __le32 step;
218 __le32 mute;
219} __attribute__((packed));
220
221struct snd_soc_tplg_ctl_tlv {
222 __le32 size; /* in bytes of this structure */
223 __le32 type; /* SNDRV_CTL_TLVT_*, type of TLV */
224 union {
225 __le32 data[SND_SOC_TPLG_TLV_SIZE];
226 struct snd_soc_tplg_tlv_dbscale scale;
227 };
228} __attribute__((packed));
229
230/*
231 * Kcontrol channel data
232 */
233struct snd_soc_tplg_channel {
234 __le32 size; /* in bytes of this structure */
235 __le32 reg;
236 __le32 shift;
237 __le32 id; /* ID maps to Left, Right, LFE etc */
238} __attribute__((packed));
239
240/*
241 * Genericl Operations IDs, for binding Kcontrol or Bytes ext ops
242 * Kcontrol ops need get/put/info.
243 * Bytes ext ops need get/put.
244 */
245struct snd_soc_tplg_io_ops {
246 __le32 get;
247 __le32 put;
248 __le32 info;
249} __attribute__((packed));
250
251/*
252 * kcontrol header
253 */
254struct snd_soc_tplg_ctl_hdr {
255 __le32 size; /* in bytes of this structure */
256 __le32 type;
257 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
258 __le32 access;
259 struct snd_soc_tplg_io_ops ops;
260 struct snd_soc_tplg_ctl_tlv tlv;
261} __attribute__((packed));
262
263/*
264 * Stream Capabilities
265 */
266struct snd_soc_tplg_stream_caps {
267 __le32 size; /* in bytes of this structure */
268 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
269 __le64 formats; /* supported formats SNDRV_PCM_FMTBIT_* */
270 __le32 rates; /* supported rates SNDRV_PCM_RATE_* */
271 __le32 rate_min; /* min rate */
272 __le32 rate_max; /* max rate */
273 __le32 channels_min; /* min channels */
274 __le32 channels_max; /* max channels */
275 __le32 periods_min; /* min number of periods */
276 __le32 periods_max; /* max number of periods */
277 __le32 period_size_min; /* min period size bytes */
278 __le32 period_size_max; /* max period size bytes */
279 __le32 buffer_size_min; /* min buffer size bytes */
280 __le32 buffer_size_max; /* max buffer size bytes */
281 __le32 sig_bits; /* number of bits of content */
282} __attribute__((packed));
283
284/*
285 * FE or BE Stream configuration supported by SW/FW
286 */
287struct snd_soc_tplg_stream {
288 __le32 size; /* in bytes of this structure */
289 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* Name of the stream */
290 __le64 format; /* SNDRV_PCM_FMTBIT_* */
291 __le32 rate; /* SNDRV_PCM_RATE_* */
292 __le32 period_bytes; /* size of period in bytes */
293 __le32 buffer_bytes; /* size of buffer in bytes */
294 __le32 channels; /* channels */
295} __attribute__((packed));
296
297
298/*
299 * Describes a physical link's runtime supported hardware config,
300 * i.e. hardware audio formats.
301 */
302struct snd_soc_tplg_hw_config {
303 __le32 size; /* in bytes of this structure */
304 __le32 id; /* unique ID - - used to match */
305 __le32 fmt; /* SND_SOC_DAI_FORMAT_ format value */
306 __u8 clock_gated; /* 1 if clock can be gated to save power */
307 __u8 invert_bclk; /* 1 for inverted BCLK, 0 for normal */
308 __u8 invert_fsync; /* 1 for inverted frame clock, 0 for normal */
309 __u8 bclk_master; /* 1 for master of BCLK, 0 for slave */
310 __u8 fsync_master; /* 1 for master of FSYNC, 0 for slave */
311 __u8 mclk_direction; /* 0 for input, 1 for output */
312 __le16 reserved; /* for 32bit alignment */
313 __le32 mclk_rate; /* MCLK or SYSCLK freqency in Hz */
314 __le32 bclk_rate; /* BCLK freqency in Hz */
315 __le32 fsync_rate; /* frame clock in Hz */
316 __le32 tdm_slots; /* number of TDM slots in use */
317 __le32 tdm_slot_width; /* width in bits for each slot */
318 __le32 tx_slots; /* bit mask for active Tx slots */
319 __le32 rx_slots; /* bit mask for active Rx slots */
320 __le32 tx_channels; /* number of Tx channels */
321 __le32 tx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
322 __le32 rx_channels; /* number of Rx channels */
323 __le32 rx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
324} __attribute__((packed));
325
326/*
327 * Manifest. List totals for each payload type. Not used in parsing, but will
328 * be passed to the component driver before any other objects in order for any
329 * global component resource allocations.
330 *
331 * File block representation for manifest :-
332 * +-----------------------------------+----+
333 * | struct snd_soc_tplg_hdr | 1 |
334 * +-----------------------------------+----+
335 * | struct snd_soc_tplg_manifest | 1 |
336 * +-----------------------------------+----+
337 */
338struct snd_soc_tplg_manifest {
339 __le32 size; /* in bytes of this structure */
340 __le32 control_elems; /* number of control elements */
341 __le32 widget_elems; /* number of widget elements */
342 __le32 graph_elems; /* number of graph elements */
343 __le32 pcm_elems; /* number of PCM elements */
344 __le32 dai_link_elems; /* number of DAI link elements */
345 __le32 dai_elems; /* number of physical DAI elements */
346 __le32 reserved[20]; /* reserved for new ABI element types */
347 struct snd_soc_tplg_private priv;
348} __attribute__((packed));
349
350/*
351 * Mixer kcontrol.
352 *
353 * File block representation for mixer kcontrol :-
354 * +-----------------------------------+----+
355 * | struct snd_soc_tplg_hdr | 1 |
356 * +-----------------------------------+----+
357 * | struct snd_soc_tplg_mixer_control | N |
358 * +-----------------------------------+----+
359 */
360struct snd_soc_tplg_mixer_control {
361 struct snd_soc_tplg_ctl_hdr hdr;
362 __le32 size; /* in bytes of this structure */
363 __le32 min;
364 __le32 max;
365 __le32 platform_max;
366 __le32 invert;
367 __le32 num_channels;
368 struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
369 struct snd_soc_tplg_private priv;
370} __attribute__((packed));
371
372/*
373 * Enumerated kcontrol
374 *
375 * File block representation for enum kcontrol :-
376 * +-----------------------------------+----+
377 * | struct snd_soc_tplg_hdr | 1 |
378 * +-----------------------------------+----+
379 * | struct snd_soc_tplg_enum_control | N |
380 * +-----------------------------------+----+
381 */
382struct snd_soc_tplg_enum_control {
383 struct snd_soc_tplg_ctl_hdr hdr;
384 __le32 size; /* in bytes of this structure */
385 __le32 num_channels;
386 struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
387 __le32 items;
388 __le32 mask;
389 __le32 count;
390 char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
391 __le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
392 struct snd_soc_tplg_private priv;
393} __attribute__((packed));
394
395/*
396 * Bytes kcontrol
397 *
398 * File block representation for bytes kcontrol :-
399 * +-----------------------------------+----+
400 * | struct snd_soc_tplg_hdr | 1 |
401 * +-----------------------------------+----+
402 * | struct snd_soc_tplg_bytes_control | N |
403 * +-----------------------------------+----+
404 */
405struct snd_soc_tplg_bytes_control {
406 struct snd_soc_tplg_ctl_hdr hdr;
407 __le32 size; /* in bytes of this structure */
408 __le32 max;
409 __le32 mask;
410 __le32 base;
411 __le32 num_regs;
412 struct snd_soc_tplg_io_ops ext_ops;
413 struct snd_soc_tplg_private priv;
414} __attribute__((packed));
415
416/*
417 * DAPM Graph Element
418 *
419 * File block representation for DAPM graph elements :-
420 * +-------------------------------------+----+
421 * | struct snd_soc_tplg_hdr | 1 |
422 * +-------------------------------------+----+
423 * | struct snd_soc_tplg_dapm_graph_elem | N |
424 * +-------------------------------------+----+
425 */
426struct snd_soc_tplg_dapm_graph_elem {
427 char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
428 char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
429 char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
430} __attribute__((packed));
431
432/*
433 * DAPM Widget.
434 *
435 * File block representation for DAPM widget :-
436 * +-------------------------------------+-----+
437 * | struct snd_soc_tplg_hdr | 1 |
438 * +-------------------------------------+-----+
439 * | struct snd_soc_tplg_dapm_widget | N |
440 * +-------------------------------------+-----+
441 * | struct snd_soc_tplg_enum_control | 0|1 |
442 * | struct snd_soc_tplg_mixer_control | 0|N |
443 * +-------------------------------------+-----+
444 *
445 * Optional enum or mixer control can be appended to the end of each widget
446 * in the block.
447 */
448struct snd_soc_tplg_dapm_widget {
449 __le32 size; /* in bytes of this structure */
450 __le32 id; /* SND_SOC_DAPM_CTL */
451 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
452 char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
453
454 __le32 reg; /* negative reg = no direct dapm */
455 __le32 shift; /* bits to shift */
456 __le32 mask; /* non-shifted mask */
457 __le32 subseq; /* sort within widget type */
458 __le32 invert; /* invert the power bit */
459 __le32 ignore_suspend; /* kept enabled over suspend */
460 __le16 event_flags;
461 __le16 event_type;
462 __le32 num_kcontrols;
463 struct snd_soc_tplg_private priv;
464 /*
465 * kcontrols that relate to this widget
466 * follow here after widget private data
467 */
468} __attribute__((packed));
469
470
471/*
472 * Describes SW/FW specific features of PCM (FE DAI & DAI link).
473 *
474 * File block representation for PCM :-
475 * +-----------------------------------+-----+
476 * | struct snd_soc_tplg_hdr | 1 |
477 * +-----------------------------------+-----+
478 * | struct snd_soc_tplg_pcm | N |
479 * +-----------------------------------+-----+
480 */
481struct snd_soc_tplg_pcm {
482 __le32 size; /* in bytes of this structure */
483 char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
484 char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
485 __le32 pcm_id; /* unique ID - used to match with DAI link */
486 __le32 dai_id; /* unique ID - used to match */
487 __le32 playback; /* supports playback mode */
488 __le32 capture; /* supports capture mode */
489 __le32 compress; /* 1 = compressed; 0 = PCM */
490 struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */
491 __le32 num_streams; /* number of streams */
492 struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
493 __le32 flag_mask; /* bitmask of flags to configure */
494 __le32 flags; /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
495 struct snd_soc_tplg_private priv;
496} __attribute__((packed));
497
498
499/*
500 * Describes the physical link runtime supported configs or params
501 *
502 * File block representation for physical link config :-
503 * +-----------------------------------+-----+
504 * | struct snd_soc_tplg_hdr | 1 |
505 * +-----------------------------------+-----+
506 * | struct snd_soc_tplg_link_config | N |
507 * +-----------------------------------+-----+
508 */
509struct snd_soc_tplg_link_config {
510 __le32 size; /* in bytes of this structure */
511 __le32 id; /* unique ID - used to match */
512 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
513 char stream_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* stream name - used to match */
514 struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */
515 __le32 num_streams; /* number of streams */
516 struct snd_soc_tplg_hw_config hw_config[SND_SOC_TPLG_HW_CONFIG_MAX]; /* hw configs */
517 __le32 num_hw_configs; /* number of hw configs */
518 __le32 default_hw_config_id; /* default hw config ID for init */
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));
523
524/*
525 * Describes SW/FW specific features of physical DAI.
526 * It can be used to configure backend DAIs for DPCM.
527 *
528 * File block representation for physical DAI :-
529 * +-----------------------------------+-----+
530 * | struct snd_soc_tplg_hdr | 1 |
531 * +-----------------------------------+-----+
532 * | struct snd_soc_tplg_dai | N |
533 * +-----------------------------------+-----+
534 */
535struct snd_soc_tplg_dai {
536 __le32 size; /* in bytes of this structure */
537 char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
538 __le32 dai_id; /* unique ID - used to match */
539 __le32 playback; /* supports playback mode */
540 __le32 capture; /* supports capture mode */
541 struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
542 __le32 flag_mask; /* bitmask of flags to configure */
543 __le32 flags; /* SND_SOC_TPLG_DAI_FLGBIT_* */
544 struct snd_soc_tplg_private priv;
545} __attribute__((packed));
546#endif