include/uapi/sound/asoc.h

Source file repositories/reference/linux-study-clean/include/uapi/sound/asoc.h

File Facts

System
Linux kernel
Corpus path
include/uapi/sound/asoc.h
Extension
.h
Size
20170 bytes
Lines
580
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

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 {
		__DECLARE_FLEX_ARRAY(struct snd_soc_tplg_vendor_uuid_elem, uuid);
		__DECLARE_FLEX_ARRAY(struct snd_soc_tplg_vendor_value_elem, value);
		__DECLARE_FLEX_ARRAY(struct snd_soc_tplg_vendor_string_elem, string);
	};
} __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 {
		__DECLARE_FLEX_ARRAY(char, data);
		__DECLARE_FLEX_ARRAY(struct snd_soc_tplg_vendor_array, array);
	};
} __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;

Annotation

Implementation Notes