/* 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 clock gating */ #define SND_SOC_TPLG_DAI_CLK_GATE_UNDEFINED 0 #define SND_SOC_TPLG_DAI_CLK_GATE_GATED 1 #define SND_SOC_TPLG_DAI_CLK_GATE_CONT 2 /* DAI mclk_direction */ #define SND_SOC_TPLG_MCLK_CO 0 /* for codec, mclk is output */ #define SND_SOC_TPLG_MCLK_CI 1 /* for codec, mclk is input */ /* 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) /* DAI topology BCLK parameter * For the backwards capability, by default codec is bclk master */ #define SND_SOC_TPLG_BCLK_CM 0 /* codec is bclk master */ #define SND_SOC_TPLG_BCLK_CS 1 /* codec is bclk slave */ /* DAI topology FSYNC parameter * For the backwards capability, by default codec is fsync master */ #define SND_SOC_TPLG_FSYNC_CM 0 /* codec is fsync master */ #define SND_SOC_TPLG_FSYNC_CS 1 /* codec is fsync slave */ /* * 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; /* SND_SOC_TPLG_DAI_CLK_GATE_ value */ __u8 invert_bclk; /* 1 for inverted BCLK, 0 for normal */ __u8 invert_fsync; /* 1 for inverted frame clock, 0 for normal */ __u8 bclk_master; /* SND_SOC_TPLG_BCLK_ value */ __u8 fsync_master; /* SND_SOC_TPLG_FSYNC_ value */ __u8 mclk_direction; /* SND_SOC_TPLG_MCLK_ value */ __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)); /* * Old version of ABI structs, supported for backward compatibility. */ /* Manifest v4 */ struct snd_soc_tplg_manifest_v4 { __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 */ struct snd_soc_tplg_private priv; } __attribute__((packed)); /* Stream Capabilities v4 */ struct snd_soc_tplg_stream_caps_v4 { __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 */ } __attribute__((packed)); /* PCM v4 */ struct snd_soc_tplg_pcm_v4 { __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_v4 caps[2]; /* playback and capture for DAI */ } __attribute__((packed)); /* Physical link config v4 */ struct snd_soc_tplg_link_config_v4 { __le32 size; /* in bytes of this structure */ __le32 id; /* unique ID - 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 */ } __attribute__((packed)); #endif