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linux_dsm_epyc7002/include/uapi/sound/asoc.h
Greg Kroah-Hartman e2be04c7f9 License cleanup: add SPDX license identifier to uapi header files with a license 
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be.  This makes it hard for
compliance tools to determine the correct license.

Update these files with an SPDX license identifier.  The identifier was
chosen based on the license information in the file.

GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:

   NOTE! This copyright does *not* cover user programs that use kernel
   services by normal system calls - this is merely considered normal use
   of the kernel, and does *not* fall under the heading of "derived work".

This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.

Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier.  The format
is:
        ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)

SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text.  The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.  See the previous patch in this series for the
methodology of how this patch was researched.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:20:11 +01:00

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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* uapi/sound/asoc.h -- ALSA SoC Firmware Controls and DAPM
*
* Copyright (C) 2012 Texas Instruments Inc.
* Copyright (C) 2015 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Simple file API to load FW that includes mixers, coefficients, DAPM graphs,
* algorithms, equalisers, DAIs, widgets etc.
*/
#ifndef __LINUX_UAPI_SND_ASOC_H
#define __LINUX_UAPI_SND_ASOC_H
#include <linux/types.h>
#include <sound/asound.h>
/*
* Maximum number of channels topology kcontrol can represent.
*/
#define SND_SOC_TPLG_MAX_CHAN 8
/*
* Maximum number of PCM formats capability
*/
#define SND_SOC_TPLG_MAX_FORMATS 16
/*
* Maximum number of PCM stream configs
*/
#define SND_SOC_TPLG_STREAM_CONFIG_MAX 8
/*
* Maximum number of physical link's hardware configs
*/
#define SND_SOC_TPLG_HW_CONFIG_MAX 8
/* individual kcontrol info types - can be mixed with other types */
#define SND_SOC_TPLG_CTL_VOLSW 1
#define SND_SOC_TPLG_CTL_VOLSW_SX 2
#define SND_SOC_TPLG_CTL_VOLSW_XR_SX 3
#define SND_SOC_TPLG_CTL_ENUM 4
#define SND_SOC_TPLG_CTL_BYTES 5
#define SND_SOC_TPLG_CTL_ENUM_VALUE 6
#define SND_SOC_TPLG_CTL_RANGE 7
#define SND_SOC_TPLG_CTL_STROBE 8
/* individual widget kcontrol info types - can be mixed with other types */
#define SND_SOC_TPLG_DAPM_CTL_VOLSW 64
#define SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE 65
#define SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT 66
#define SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE 67
#define SND_SOC_TPLG_DAPM_CTL_PIN 68
/* DAPM widget types - add new items to the end */
#define SND_SOC_TPLG_DAPM_INPUT 0
#define SND_SOC_TPLG_DAPM_OUTPUT 1
#define SND_SOC_TPLG_DAPM_MUX 2
#define SND_SOC_TPLG_DAPM_MIXER 3
#define SND_SOC_TPLG_DAPM_PGA 4
#define SND_SOC_TPLG_DAPM_OUT_DRV 5
#define SND_SOC_TPLG_DAPM_ADC 6
#define SND_SOC_TPLG_DAPM_DAC 7
#define SND_SOC_TPLG_DAPM_SWITCH 8
#define SND_SOC_TPLG_DAPM_PRE 9
#define SND_SOC_TPLG_DAPM_POST 10
#define SND_SOC_TPLG_DAPM_AIF_IN 11
#define SND_SOC_TPLG_DAPM_AIF_OUT 12
#define SND_SOC_TPLG_DAPM_DAI_IN 13
#define SND_SOC_TPLG_DAPM_DAI_OUT 14
#define SND_SOC_TPLG_DAPM_DAI_LINK 15
#define SND_SOC_TPLG_DAPM_BUFFER 16
#define SND_SOC_TPLG_DAPM_SCHEDULER 17
#define SND_SOC_TPLG_DAPM_EFFECT 18
#define SND_SOC_TPLG_DAPM_SIGGEN 19
#define SND_SOC_TPLG_DAPM_SRC 20
#define SND_SOC_TPLG_DAPM_ASRC 21
#define SND_SOC_TPLG_DAPM_ENCODER 22
#define SND_SOC_TPLG_DAPM_DECODER 23
#define SND_SOC_TPLG_DAPM_LAST SND_SOC_TPLG_DAPM_DECODER
/* Header magic number and string sizes */
#define SND_SOC_TPLG_MAGIC 0x41536F43 /* ASoC */
/* string sizes */
#define SND_SOC_TPLG_NUM_TEXTS 16
/* ABI version */
#define SND_SOC_TPLG_ABI_VERSION 0x5 /* current version */
#define SND_SOC_TPLG_ABI_VERSION_MIN 0x4 /* oldest version supported */
/* Max size of TLV data */
#define SND_SOC_TPLG_TLV_SIZE 32
/*
* File and Block header data types.
* Add new generic and vendor types to end of list.
* Generic types are handled by the core whilst vendors types are passed
* to the component drivers for handling.
*/
#define SND_SOC_TPLG_TYPE_MIXER 1
#define SND_SOC_TPLG_TYPE_BYTES 2
#define SND_SOC_TPLG_TYPE_ENUM 3
#define SND_SOC_TPLG_TYPE_DAPM_GRAPH 4
#define SND_SOC_TPLG_TYPE_DAPM_WIDGET 5
#define SND_SOC_TPLG_TYPE_DAI_LINK 6
#define SND_SOC_TPLG_TYPE_PCM 7
#define SND_SOC_TPLG_TYPE_MANIFEST 8
#define SND_SOC_TPLG_TYPE_CODEC_LINK 9
#define SND_SOC_TPLG_TYPE_BACKEND_LINK 10
#define SND_SOC_TPLG_TYPE_PDATA 11
#define SND_SOC_TPLG_TYPE_DAI 12
#define SND_SOC_TPLG_TYPE_MAX SND_SOC_TPLG_TYPE_DAI
/* vendor block IDs - please add new vendor types to end */
#define SND_SOC_TPLG_TYPE_VENDOR_FW 1000
#define SND_SOC_TPLG_TYPE_VENDOR_CONFIG 1001
#define SND_SOC_TPLG_TYPE_VENDOR_COEFF 1002
#define SND_SOC_TPLG_TYPEVENDOR_CODEC 1003
#define SND_SOC_TPLG_STREAM_PLAYBACK 0
#define SND_SOC_TPLG_STREAM_CAPTURE 1
/* vendor tuple types */
#define SND_SOC_TPLG_TUPLE_TYPE_UUID 0
#define SND_SOC_TPLG_TUPLE_TYPE_STRING 1
#define SND_SOC_TPLG_TUPLE_TYPE_BOOL 2
#define SND_SOC_TPLG_TUPLE_TYPE_BYTE 3
#define SND_SOC_TPLG_TUPLE_TYPE_WORD 4
#define SND_SOC_TPLG_TUPLE_TYPE_SHORT 5
/* DAI flags */
#define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES (1 << 0)
#define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS (1 << 1)
#define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS (1 << 2)
/* DAI physical PCM data formats.
* Add new formats to the end of the list.
*/
#define SND_SOC_DAI_FORMAT_I2S 1 /* I2S mode */
#define SND_SOC_DAI_FORMAT_RIGHT_J 2 /* Right Justified mode */
#define SND_SOC_DAI_FORMAT_LEFT_J 3 /* Left Justified mode */
#define SND_SOC_DAI_FORMAT_DSP_A 4 /* L data MSB after FRM LRC */
#define SND_SOC_DAI_FORMAT_DSP_B 5 /* L data MSB during FRM LRC */
#define SND_SOC_DAI_FORMAT_AC97 6 /* AC97 */
#define SND_SOC_DAI_FORMAT_PDM 7 /* Pulse density modulation */
/* left and right justified also known as MSB and LSB respectively */
#define SND_SOC_DAI_FORMAT_MSB SND_SOC_DAI_FORMAT_LEFT_J
#define SND_SOC_DAI_FORMAT_LSB SND_SOC_DAI_FORMAT_RIGHT_J
/* DAI link flags */
#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES (1 << 0)
#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS (1 << 1)
#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS (1 << 2)
#define SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP (1 << 3)
/*
* Block Header.
* This header precedes all object and object arrays below.
*/
struct snd_soc_tplg_hdr {
__le32 magic; /* magic number */
__le32 abi; /* ABI version */
__le32 version; /* optional vendor specific version details */
__le32 type; /* SND_SOC_TPLG_TYPE_ */
__le32 size; /* size of this structure */
__le32 vendor_type; /* optional vendor specific type info */
__le32 payload_size; /* data bytes, excluding this header */
__le32 index; /* identifier for block */
__le32 count; /* number of elements in block */
} __attribute__((packed));
/* vendor tuple for uuid */
struct snd_soc_tplg_vendor_uuid_elem {
__le32 token;
char uuid[16];
} __attribute__((packed));
/* vendor tuple for a bool/byte/short/word value */
struct snd_soc_tplg_vendor_value_elem {
__le32 token;
__le32 value;
} __attribute__((packed));
/* vendor tuple for string */
struct snd_soc_tplg_vendor_string_elem {
__le32 token;
char string[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
} __attribute__((packed));
struct snd_soc_tplg_vendor_array {
__le32 size; /* size in bytes of the array, including all elements */
__le32 type; /* SND_SOC_TPLG_TUPLE_TYPE_ */
__le32 num_elems; /* number of elements in array */
union {
struct snd_soc_tplg_vendor_uuid_elem uuid[0];
struct snd_soc_tplg_vendor_value_elem value[0];
struct snd_soc_tplg_vendor_string_elem string[0];
};
} __attribute__((packed));
/*
* Private data.
* All topology objects may have private data that can be used by the driver or
* firmware. Core will ignore this data.
*/
struct snd_soc_tplg_private {
__le32 size; /* in bytes of private data */
union {
char data[0];
struct snd_soc_tplg_vendor_array array[0];
};
} __attribute__((packed));
/*
* Kcontrol TLV data.
*/
struct snd_soc_tplg_tlv_dbscale {
__le32 min;
__le32 step;
__le32 mute;
} __attribute__((packed));
struct snd_soc_tplg_ctl_tlv {
__le32 size; /* in bytes of this structure */
__le32 type; /* SNDRV_CTL_TLVT_*, type of TLV */
union {
__le32 data[SND_SOC_TPLG_TLV_SIZE];
struct snd_soc_tplg_tlv_dbscale scale;
};
} __attribute__((packed));
/*
* Kcontrol channel data
*/
struct snd_soc_tplg_channel {
__le32 size; /* in bytes of this structure */
__le32 reg;
__le32 shift;
__le32 id; /* ID maps to Left, Right, LFE etc */
} __attribute__((packed));
/*
* Genericl Operations IDs, for binding Kcontrol or Bytes ext ops
* Kcontrol ops need get/put/info.
* Bytes ext ops need get/put.
*/
struct snd_soc_tplg_io_ops {
__le32 get;
__le32 put;
__le32 info;
} __attribute__((packed));
/*
* kcontrol header
*/
struct snd_soc_tplg_ctl_hdr {
__le32 size; /* in bytes of this structure */
__le32 type;
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
__le32 access;
struct snd_soc_tplg_io_ops ops;
struct snd_soc_tplg_ctl_tlv tlv;
} __attribute__((packed));
/*
* Stream Capabilities
*/
struct snd_soc_tplg_stream_caps {
__le32 size; /* in bytes of this structure */
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
__le64 formats; /* supported formats SNDRV_PCM_FMTBIT_* */
__le32 rates; /* supported rates SNDRV_PCM_RATE_* */
__le32 rate_min; /* min rate */
__le32 rate_max; /* max rate */
__le32 channels_min; /* min channels */
__le32 channels_max; /* max channels */
__le32 periods_min; /* min number of periods */
__le32 periods_max; /* max number of periods */
__le32 period_size_min; /* min period size bytes */
__le32 period_size_max; /* max period size bytes */
__le32 buffer_size_min; /* min buffer size bytes */
__le32 buffer_size_max; /* max buffer size bytes */
__le32 sig_bits; /* number of bits of content */
} __attribute__((packed));
/*
* FE or BE Stream configuration supported by SW/FW
*/
struct snd_soc_tplg_stream {
__le32 size; /* in bytes of this structure */
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* Name of the stream */
__le64 format; /* SNDRV_PCM_FMTBIT_* */
__le32 rate; /* SNDRV_PCM_RATE_* */
__le32 period_bytes; /* size of period in bytes */
__le32 buffer_bytes; /* size of buffer in bytes */
__le32 channels; /* channels */
} __attribute__((packed));
/*
* Describes a physical link's runtime supported hardware config,
* i.e. hardware audio formats.
*/
struct snd_soc_tplg_hw_config {
__le32 size; /* in bytes of this structure */
__le32 id; /* unique ID - - used to match */
__le32 fmt; /* SND_SOC_DAI_FORMAT_ format value */
__u8 clock_gated; /* 1 if clock can be gated to save power */
__u8 invert_bclk; /* 1 for inverted BCLK, 0 for normal */
__u8 invert_fsync; /* 1 for inverted frame clock, 0 for normal */
__u8 bclk_master; /* 1 for master of BCLK, 0 for slave */
__u8 fsync_master; /* 1 for master of FSYNC, 0 for slave */
__u8 mclk_direction; /* 0 for input, 1 for output */
__le16 reserved; /* for 32bit alignment */
__le32 mclk_rate; /* MCLK or SYSCLK freqency in Hz */
__le32 bclk_rate; /* BCLK freqency in Hz */
__le32 fsync_rate; /* frame clock in Hz */
__le32 tdm_slots; /* number of TDM slots in use */
__le32 tdm_slot_width; /* width in bits for each slot */
__le32 tx_slots; /* bit mask for active Tx slots */
__le32 rx_slots; /* bit mask for active Rx slots */
__le32 tx_channels; /* number of Tx channels */
__le32 tx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
__le32 rx_channels; /* number of Rx channels */
__le32 rx_chanmap[SND_SOC_TPLG_MAX_CHAN]; /* array of slot number */
} __attribute__((packed));
/*
* Manifest. List totals for each payload type. Not used in parsing, but will
* be passed to the component driver before any other objects in order for any
* global component resource allocations.
*
* File block representation for manifest :-
* +-----------------------------------+----+
* | struct snd_soc_tplg_hdr | 1 |
* +-----------------------------------+----+
* | struct snd_soc_tplg_manifest | 1 |
* +-----------------------------------+----+
*/
struct snd_soc_tplg_manifest {
__le32 size; /* in bytes of this structure */
__le32 control_elems; /* number of control elements */
__le32 widget_elems; /* number of widget elements */
__le32 graph_elems; /* number of graph elements */
__le32 pcm_elems; /* number of PCM elements */
__le32 dai_link_elems; /* number of DAI link elements */
__le32 dai_elems; /* number of physical DAI elements */
__le32 reserved[20]; /* reserved for new ABI element types */
struct snd_soc_tplg_private priv;
} __attribute__((packed));
/*
* Mixer kcontrol.
*
* File block representation for mixer kcontrol :-
* +-----------------------------------+----+
* | struct snd_soc_tplg_hdr | 1 |
* +-----------------------------------+----+
* | struct snd_soc_tplg_mixer_control | N |
* +-----------------------------------+----+
*/
struct snd_soc_tplg_mixer_control {
struct snd_soc_tplg_ctl_hdr hdr;
__le32 size; /* in bytes of this structure */
__le32 min;
__le32 max;
__le32 platform_max;
__le32 invert;
__le32 num_channels;
struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
struct snd_soc_tplg_private priv;
} __attribute__((packed));
/*
* Enumerated kcontrol
*
* File block representation for enum kcontrol :-
* +-----------------------------------+----+
* | struct snd_soc_tplg_hdr | 1 |
* +-----------------------------------+----+
* | struct snd_soc_tplg_enum_control | N |
* +-----------------------------------+----+
*/
struct snd_soc_tplg_enum_control {
struct snd_soc_tplg_ctl_hdr hdr;
__le32 size; /* in bytes of this structure */
__le32 num_channels;
struct snd_soc_tplg_channel channel[SND_SOC_TPLG_MAX_CHAN];
__le32 items;
__le32 mask;
__le32 count;
char texts[SND_SOC_TPLG_NUM_TEXTS][SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
__le32 values[SND_SOC_TPLG_NUM_TEXTS * SNDRV_CTL_ELEM_ID_NAME_MAXLEN / 4];
struct snd_soc_tplg_private priv;
} __attribute__((packed));
/*
* Bytes kcontrol
*
* File block representation for bytes kcontrol :-
* +-----------------------------------+----+
* | struct snd_soc_tplg_hdr | 1 |
* +-----------------------------------+----+
* | struct snd_soc_tplg_bytes_control | N |
* +-----------------------------------+----+
*/
struct snd_soc_tplg_bytes_control {
struct snd_soc_tplg_ctl_hdr hdr;
__le32 size; /* in bytes of this structure */
__le32 max;
__le32 mask;
__le32 base;
__le32 num_regs;
struct snd_soc_tplg_io_ops ext_ops;
struct snd_soc_tplg_private priv;
} __attribute__((packed));
/*
* DAPM Graph Element
*
* File block representation for DAPM graph elements :-
* +-------------------------------------+----+
* | struct snd_soc_tplg_hdr | 1 |
* +-------------------------------------+----+
* | struct snd_soc_tplg_dapm_graph_elem | N |
* +-------------------------------------+----+
*/
struct snd_soc_tplg_dapm_graph_elem {
char sink[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
char control[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
char source[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
} __attribute__((packed));
/*
* DAPM Widget.
*
* File block representation for DAPM widget :-
* +-------------------------------------+-----+
* | struct snd_soc_tplg_hdr | 1 |
* +-------------------------------------+-----+
* | struct snd_soc_tplg_dapm_widget | N |
* +-------------------------------------+-----+
* | struct snd_soc_tplg_enum_control | 0|1 |
* | struct snd_soc_tplg_mixer_control | 0|N |
* +-------------------------------------+-----+
*
* Optional enum or mixer control can be appended to the end of each widget
* in the block.
*/
struct snd_soc_tplg_dapm_widget {
__le32 size; /* in bytes of this structure */
__le32 id; /* SND_SOC_DAPM_CTL */
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
char sname[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
__le32 reg; /* negative reg = no direct dapm */
__le32 shift; /* bits to shift */
__le32 mask; /* non-shifted mask */
__le32 subseq; /* sort within widget type */
__le32 invert; /* invert the power bit */
__le32 ignore_suspend; /* kept enabled over suspend */
__le16 event_flags;
__le16 event_type;
__le32 num_kcontrols;
struct snd_soc_tplg_private priv;
/*
* kcontrols that relate to this widget
* follow here after widget private data
*/
} __attribute__((packed));
/*
* Describes SW/FW specific features of PCM (FE DAI & DAI link).
*
* File block representation for PCM :-
* +-----------------------------------+-----+
* | struct snd_soc_tplg_hdr | 1 |
* +-----------------------------------+-----+
* | struct snd_soc_tplg_pcm | N |
* +-----------------------------------+-----+
*/
struct snd_soc_tplg_pcm {
__le32 size; /* in bytes of this structure */
char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
__le32 pcm_id; /* unique ID - used to match with DAI link */
__le32 dai_id; /* unique ID - used to match */
__le32 playback; /* supports playback mode */
__le32 capture; /* supports capture mode */
__le32 compress; /* 1 = compressed; 0 = PCM */
struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */
__le32 num_streams; /* number of streams */
struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
__le32 flag_mask; /* bitmask of flags to configure */
__le32 flags; /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
struct snd_soc_tplg_private priv;
} __attribute__((packed));
/*
* Describes the physical link runtime supported configs or params
*
* File block representation for physical link config :-
* +-----------------------------------+-----+
* | struct snd_soc_tplg_hdr | 1 |
* +-----------------------------------+-----+
* | struct snd_soc_tplg_link_config | N |
* +-----------------------------------+-----+
*/
struct snd_soc_tplg_link_config {
__le32 size; /* in bytes of this structure */
__le32 id; /* unique ID - used to match */
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
char stream_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* stream name - used to match */
struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */
__le32 num_streams; /* number of streams */
struct snd_soc_tplg_hw_config hw_config[SND_SOC_TPLG_HW_CONFIG_MAX]; /* hw configs */
__le32 num_hw_configs; /* number of hw configs */
__le32 default_hw_config_id; /* default hw config ID for init */
__le32 flag_mask; /* bitmask of flags to configure */
__le32 flags; /* SND_SOC_TPLG_LNK_FLGBIT_* flag value */
struct snd_soc_tplg_private priv;
} __attribute__((packed));
/*
* Describes SW/FW specific features of physical DAI.
* It can be used to configure backend DAIs for DPCM.
*
* File block representation for physical DAI :-
* +-----------------------------------+-----+
* | struct snd_soc_tplg_hdr | 1 |
* +-----------------------------------+-----+
* | struct snd_soc_tplg_dai | N |
* +-----------------------------------+-----+
*/
struct snd_soc_tplg_dai {
__le32 size; /* in bytes of this structure */
char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* name - used to match */
__le32 dai_id; /* unique ID - used to match */
__le32 playback; /* supports playback mode */
__le32 capture; /* supports capture mode */
struct snd_soc_tplg_stream_caps caps[2]; /* playback and capture for DAI */
__le32 flag_mask; /* bitmask of flags to configure */
__le32 flags; /* SND_SOC_TPLG_DAI_FLGBIT_* */
struct snd_soc_tplg_private priv;
} __attribute__((packed));
#endif
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