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ASoC: topology: Add topology UAPI header

The ASoC topology UAPI header defines the structures
 required to define any DSP firmware audio topology and control objects from
 userspace.

The following objects are supported :-
 o kcontrols including TLV controls.
 o DAPM widgets and graph elements
 o Vendor bespoke objects.
 o Coefficient data
 o FE PCM capabilities and config.
 o BE link capabilities and config.
 o Codec <-> codec link capabilities and config.
 o Topology object manifest.

The file format is simple and divided into blocks for each object type and
each block has a header that defines it's size and type. Blocks can be in
any order of type and can either all be in a single file or spread across
more than one file. Blocks also have a group identifier ID so that they can
be loaded and unloaded by ID.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Liam Girdwood 2015-05-29 19:06:13 +01:00 committed by Mark Brown
parent 5353f65b85
commit c147c0e17b
2 changed files with 389 additions and 0 deletions
include
sound
uapi/sound

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@ -15,6 +15,7 @@
#include <linux/types.h>
#include <sound/control.h>
#include <sound/asoc.h>
struct device;

388
include/uapi/sound/asoc.h Normal file
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@ -0,0 +1,388 @@
/*
* 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
/* 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_LAST SND_SOC_TPLG_DAPM_DAI_LINK
/* 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 0x2
/* 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_MAX SND_SOC_TPLG_TYPE_CODEC_LINK
/* 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
/*
* Block Header.
* This header preceeds 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));
/*
* 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 */
char data[0];
} __attribute__((packed));
/*
* Kcontrol TLV data.
*/
struct snd_soc_tplg_ctl_tlv {
__le32 size; /* in bytes aligned to 4 */
__le32 numid; /* control element numeric identification */
__le32 count; /* number of elem in data array */
__le32 data[SND_SOC_TPLG_TLV_SIZE];
} __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));
/*
* Kcontrol Operations IDs
*/
struct snd_soc_tplg_kcontrol_ops_id {
__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_kcontrol_ops_id ops;
__le32 tlv_size; /* non zero means control has TLV data */
} __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[SND_SOC_TPLG_MAX_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 */
} __attribute__((packed));
/*
* FE or BE Stream configuration supported by SW/FW
*/
struct snd_soc_tplg_stream {
__le32 size; /* in bytes of this structure */
__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 */
__le32 tdm_slot; /* optional BE bitmask of supported TDM slots */
__le32 dai_fmt; /* SND_SOC_DAIFMT_ */
} __attribute__((packed));
/*
* Duplex stream configuration supported by SW/FW.
*/
struct snd_soc_tplg_stream_config {
__le32 size; /* in bytes of this structure */
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
struct snd_soc_tplg_stream playback;
struct snd_soc_tplg_stream capture;
} __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 componnent 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 dai_elems; /* number of DAI elements */
__le32 dai_link_elems; /* number of DAI link elements */
} __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_ctl_tlv tlv;
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_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 */
__u32 invert; /* invert the power bit */
__u32 ignore_suspend; /* kept enabled over suspend */
__u16 event_flags;
__u16 event_type;
__u16 num_kcontrols;
struct snd_soc_tplg_private priv;
/*
* kcontrols that relate to this widget
* follow here after widget private data
*/
} __attribute__((packed));
struct snd_soc_tplg_pcm_cfg_caps {
struct snd_soc_tplg_stream_caps caps;
struct snd_soc_tplg_stream_config configs[SND_SOC_TPLG_STREAM_CONFIG_MAX];
__le32 num_configs; /* number of configs */
} __attribute__((packed));
/*
* Describes SW/FW specific features of PCM or DAI link.
*
* File block representation for PCM/DAI-Link :-
* +-----------------------------------+-----+
* | struct snd_soc_tplg_hdr | 1 |
* +-----------------------------------+-----+
* | struct snd_soc_tplg_dapm_pcm_dai | N |
* +-----------------------------------+-----+
*/
struct snd_soc_tplg_pcm_dai {
__le32 size; /* in bytes of this structure */
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
__le32 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_pcm_cfg_caps capconf[2]; /* capabilities and configs */
} __attribute__((packed));
#endif