xushaoxiang
594 lines
19 KiB
C
594 lines
19 KiB
C
/**
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****************************************************************************************
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*
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* @file bap.h
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*
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* @brief Basic Audio Profile - Header file
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*
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* Copyright (C) RivieraWaves 2019-2020
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*
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****************************************************************************************
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*/
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#ifndef BAP_H_
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#define BAP_H_
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/**
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****************************************************************************************
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* @addtogroup BAP Basic Audio Profile
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* @{
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****************************************************************************************
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*/
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/*
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* INCLUDE FILES
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****************************************************************************************
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*/
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#include "gaf_cfg.h" // GAF Configuration
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#include "gaf.h" // Code definitions
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/*
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* ENUMERATIONS
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****************************************************************************************
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*/
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/// Module type values
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enum bap_module_type
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{
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/// Common
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BAP_MODULE_COMMON = 0,
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/// Basic Audio Profile Capabilities Server
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BAP_MODULE_CAPA_SRV = 1,
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/// Basic Audio Profile Capabilities Client
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BAP_MODULE_CAPA_CLI = 2,
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/// Basic Audio Profile Unicast Server
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BAP_MODULE_UC_SRV = 3,
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/// Basic Audio Profile Unicast Client
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BAP_MODULE_UC_CLI = 4,
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/// Basic Audio Profile Broadcast Source
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BAP_MODULE_BC_SRC = 5,
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/// Basic Audio Profile Broadcast Sink
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BAP_MODULE_BC_SINK = 6,
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/// Basic Audio Profile Broadcast Scan
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BAP_MODULE_BC_SCAN = 7,
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/// Basic Audio Profile Broadcast Assistant
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BAP_MODULE_BC_ASSIST = 8,
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/// Basic Audio Profile Broadcast Delegator
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BAP_MODULE_BC_DELEG = 9,
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BAP_MODULE_MAX,
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};
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/// List of GAF_REQ request codes
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enum bap_msg_req_codes
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{
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/// Configure Basic Audio Profile
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BAP_CONFIGURE = GAF_CODE(BAP, COMMON, 0),
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/// Get supported roles
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BAP_GET_ROLES = GAF_CODE(BAP, COMMON, 1),
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};
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/// Position of fields in LTV structure
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enum bap_ltv_pos
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{
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/// Length
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BAP_LTV_LENGTH_POS = 0,
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/// Type
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BAP_LTV_TYPE_POS,
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/// Value
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BAP_LTV_VALUE_POS,
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/// Minimal length of LTV structure
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BAP_LTV_LENGTH_MIN = 1,
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};
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/// Type values for Metadata LTV structure
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enum bap_ltv_type_metadata
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{
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/// Preferred Audio Contexts
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BAP_LTV_TYPE_METADATA_PREF_CONTEXTS = 0,
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/// Streaming Audio Contexts
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BAP_LTV_TYPE_METADATA_STREAM_CONTEXTS,
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};
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/// (Minimal) value of length field for Metadata LTV structure
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enum bap_ltv_length_metadata
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{
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/// Preferred Audio Contexts
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BAP_LTV_LENGTH_METADATA_PREF_CONTEXTS = 3,
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/// Streaming Audio Contexts
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BAP_LTV_LENGTH_METADATA_STREAM_CONTEXTS = 3,
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};
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/// Type values for LC3 Specific Capabilities LTV structure
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enum bap_ltv_type_lc3_capa
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{
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/// Supported Sampling Frequencies
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BAP_LTV_TYPE_LC3_CAPA_SUPP_SAMP_FREQ = 0,
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/// Supported Frame Durations
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BAP_LTV_TYPE_LC3_CAPA_SUPP_FRAME_DUR,
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/// Audio Channel Counts
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BAP_LTV_TYPE_LC3_CAPA_CHNL_CNT,
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/// Supported Octets per Codec Frame
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BAP_LTV_TYPE_LC3_CAPA_SUPP_OCTETS_FRAME,
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/// Maximum Supported LC3 Frames per SDU
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BAP_LTV_TYPE_LC3_CAPA_SUPP_FRAMES_SDU,
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};
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/// (Minimal) value of length field for LC3 Specific Capabilities LTV structure
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enum bap_ltv_length_lc3_capa
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{
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/// Supported Sampling Frequencies
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BAP_LTV_LENGTH_LC3_CAPA_SUPP_SAMP_FREQ = 3,
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/// Supported Frame Durations
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BAP_LTV_LENGTH_LC3_CAPA_SUPP_FRAME_DUR = 2,
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/// Audio Channel Counts
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BAP_LTV_LENGTH_LC3_CAPA_CHNL_CNT = 2,
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/// Supported Octets per Codec Frame
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BAP_LTV_LENGTH_LC3_CAPA_SUPP_OCTETS_FRAME = 5,
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/// Maximum Supported LC3 Frames per SDU
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BAP_LTV_LENGTH_LC3_CAPA_SUPP_FRAMES_SDU = 2,
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};
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/// Supported Roles bit field meaning
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enum bap_role_bf
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{
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/// Capabilities Server supported
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BAP_ROLE_SUPP_CAPA_SRV_BIT = 0x0001,
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BAP_ROLE_SUPP_CAPA_SRV_POS = 0,
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/// Capabilities Client supported
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BAP_ROLE_SUPP_CAPA_CLI_BIT = 0x0002,
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BAP_ROLE_SUPP_CAPA_CLI_POS = 1,
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/// Unicast Server supported
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BAP_ROLE_SUPP_UC_SRV_BIT = 0x0004,
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BAP_ROLE_SUPP_UC_SRV_POS = 2,
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/// Unicast Client supported
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BAP_ROLE_SUPP_UC_CLI_BIT = 0x0008,
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BAP_ROLE_SUPP_UC_CLI_POS = 3,
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/// Broadcast Source supported
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BAP_ROLE_SUPP_BC_SRC_BIT = 0x0010,
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BAP_ROLE_SUPP_BC_SRC_POS = 4,
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/// Broadcast Sink supported
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BAP_ROLE_SUPP_BC_SINK_BIT = 0x0020,
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BAP_ROLE_SUPP_BC_SINK_POS = 5,
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/// Broadcast Scan supported
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BAP_ROLE_SUPP_BC_SCAN_BIT = 0x0040,
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BAP_ROLE_SUPP_BC_SCAN_POS = 6,
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/// Broadcast Scan Assistant supported
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BAP_ROLE_SUPP_BC_ASSIST_BIT = 0x0080,
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BAP_ROLE_SUPP_BC_ASSIST_POS = 7,
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/// Broadcast Scan Delegator supported
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BAP_ROLE_SUPP_BC_DELEG_BIT = 0x0100,
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BAP_ROLE_SUPP_BC_DELEG_POS = 8,
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};
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/*
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* TYPE DEFINITION
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****************************************************************************************
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*/
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typedef struct bap_capa_srv_cfg
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{
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/// Number of PAC Groups for Sink direction
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uint8_t nb_pacs_sink;
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/// Number of PAC Groups for Source direction
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uint8_t nb_pacs_src;
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/// Configuration bit field (@see TODO [LT])
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uint8_t cfg_bf;
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/// Preferred MTU
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/// Values from 0 to 63 are equivalent to 64
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uint16_t pref_mtu;
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/// Required start handle
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/// If set to GATT_INVALID_HDL, the start handle will be automatically chosen
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uint16_t shdl;
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/// Supported Audio Locations bit field for Sink direction
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/// Meaningful only if nb_pac_sink is different than 0
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uint32_t location_bf_sink;
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/// Supported Audio Locations bit field for Source direction
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/// Meaningful only if nb_pac_src is different than 0
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uint32_t location_bf_src;
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/// Supported Audio Contexts bit field for Sink direction
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/// Meaningful only if nb_pac_sink is different than 0
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uint16_t supp_context_bf_sink;
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/// Supported Audio Contexts bit field for Source direction
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/// Meaningful only if nb_pac_src is different than 0
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uint16_t supp_context_bf_src;
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} bap_capa_srv_cfg_t;
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typedef struct bap_capa_cli_cfg
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{
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/// Preferred MTU
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/// Values from 0 to 63 are equivalent to 64
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uint16_t pref_mtu;
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} bap_capa_cli_cfg_t;
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/// Configuration structure for BAP Unicast Server module
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typedef struct bap_uc_srv_cfg
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{
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/// Number of instances of the ASE characteristic
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/// Shall be in the range ]0, 15]
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uint8_t nb_ase_chars;
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/// Number of ASE configurations that can be maintained
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/// Shall be at least equal to nb_ase_chars
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/// Should be a multiple of nb_ase_chars
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/// Shall not be larger than nb_ase_chars * BLE_CONNECTION_MAX
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uint8_t nb_ases_cfg;
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/// Preferred MTU
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/// Values from 0 to 63 are equivalent to 64
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uint16_t pref_mtu;
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/// Required start handle
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/// If set to GATT_INVALID_HDL, the start handle will automatically chosen
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uint16_t shdl;
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} bap_uc_srv_cfg_t;
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/// Configuration structure for BAP Unicast Client module
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typedef struct bap_uc_cli_cfg
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{
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/// Configuration bit field
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uint8_t cfg_bf;
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/// Number of ASE configurations that can be maintained
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/// Shall be at least equal to nb_ase_chars
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/// Should be a multiple of nb_ase_chars
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/// Shall not be larger than nb_ase_chars * BLE_CONNECTION_MAX
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uint8_t nb_ases_cfg;
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/// Preferred MTU
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/// Values from 0 to 63 are equivalent to 64
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uint16_t pref_mtu;
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} bap_uc_cli_cfg_t;
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/// Broadcast Scanner configuration structure
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typedef struct bap_bc_scan_cfg
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{
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/// Number of Broadcast Source information that may be stored in the cache
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uint8_t cache_size;
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/// Number of Periodic Synchronizations that may be established in parallel
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uint8_t nb_sync;
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} bap_bc_scan_cfg_t;
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/// Broadcast Assistant configuration structure
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typedef struct bap_bc_assist_cfg
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{
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/// Preferred MTU - Values from 0 to 63 are equivalent to 64
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uint16_t pref_mtu;
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} bap_bc_assist_cfg_t;
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/// Broadcast Delegator configuration structure
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typedef struct bap_bc_deleg_cfg
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{
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/// Number of supported Broadcast Sources Up to 15
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uint8_t nb_srcs;
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/// Required start handle - If set to GATT_INVALID_HDL, the start handle will be automatically chosen
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uint16_t shdl;
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/// Preferred MTU - Values from 0 to 63 are equivalent to 64
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uint16_t pref_mtu;
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} bap_bc_deleg_cfg_t;
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/// Broadcast Group Parameters structure
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typedef struct bap_bc_grp_param
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{
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/// SDU interval in microseconds
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uint32_t sdu_intv_us;
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/// Maximum size of an SDU
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uint16_t max_sdu;
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/// Maximum time (in milliseconds) between the first transmission of an SDU to the end of the last transmission
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/// of the same SDU
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uint16_t max_tlatency;
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/// Sequential or Interleaved scheduling
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uint8_t packing;
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/// Unframed or framed mode
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uint8_t framing;
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/// Bitfield indicating PHYs that can be used by the controller for transmission of SDUs
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uint8_t phy_bf;
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/// Number of times every PDU should be transmitted
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uint8_t rtn;
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}bap_bc_grp_param_t;
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/// Advertising Parameters structure
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typedef struct bap_bc_adv_param
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{
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/// Minimum advertising interval in multiple of 0.625ms. Must be higher than 20ms.
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uint32_t adv_intv_min_slot;
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/// Maximum advertising interval in multiple of 0.625ms. Must be higher than 20ms.
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uint32_t adv_intv_max_slot;
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/// Channel Map
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uint8_t chnl_map;
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/// PHY for primary advertising. Only LE 1M and LE Codec PHYs are allowed
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uint8_t phy_prim;
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/// PHY for secondary advertising
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uint8_t phy_second;
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/// Advertising SID
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uint8_t adv_sid;
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}bap_bc_adv_param_t;
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/// Periodic Advertising Parameters structure
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typedef struct bap_bc_per_adv_param
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{
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/// Minimum periodic advertising interval in multiple of 1.25ms. Must be higher than 7.5ms
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uint32_t adv_intv_min_frame;
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/// Maximum periodic advertising interval in multiple of 1.25ms. Must be higher than 7.5ms
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uint32_t adv_intv_max_frame;
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} bap_bc_per_adv_param_t;
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/// LC3 Capabilities structure (with pointer)
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typedef struct bap_lc3_capa_ptr
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{
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/// Supported sampling frequencies bit field (@see TODO [LT])
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uint16_t sampling_freq_bf;
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/// Minimum number of octets supported per codec frame
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uint16_t frame_octet_min;
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/// Maximum number of octets supported per codec frame
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uint16_t frame_octet_max;
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/// Preferred Audio Context bit field
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uint16_t context_bf;
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/// Supported frame durations bit field (@see TODO [LT])
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uint8_t frame_dur_bf;
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/// Channel count supported (@see TODO [LT])
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uint8_t chan_cnt;
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/// Length of full Codec Capabilities value
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uint8_t capa_len;
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/// Length of full Metadata value
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uint8_t metadata_len;
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/// Maximum supported LC3 frames per SDU
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/// Shall be either equal to 0 or >= to chan_cnt
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/// Part of Codec Specific Capabilities only if different than 0
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uint8_t max_lc3_frame_sdu;
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/// Pointer to full Codec Capabilities value (in LTV format)
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const uint8_t* p_capa;
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/// Pointer to full Metadata value (in LTV format)
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const uint8_t* p_metadata;
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} bap_lc3_capa_ptr_t;
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/// Codec Capabilities structure (with pointer)
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typedef struct bap_vendor_codec_capa_ptr
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{
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/// Preferred Audio Context bit field
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uint16_t context_bf;
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/// Length of full Codec Capabilities value
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uint8_t capa_len;
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/// Length of full Metadata value
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uint8_t metadata_len;
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/// Pointer to full Codec Capabilities value (in LTV format)
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const uint8_t* p_capa;
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/// Pointer to full Metadata value (in LTV format)
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const uint8_t* p_metadata;
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} bap_vendor_codec_capa_ptr_t;
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/// LC3 Capabilities structure
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typedef struct bap_lc3_capa
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{
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/// Supported sampling frequencies bit field
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uint16_t sampling_freq_bf;
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/// Minimum number of octets supported per codec frame
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uint16_t frame_octet_min;
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/// Maximum number of octets supported per codec frame
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uint16_t frame_octet_max;
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/// Preferred Audio Context bit field
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uint16_t context_bf;
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/// Supported frame durations bit field
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uint8_t frame_dur_bf;
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/// Channel count supported
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uint8_t chan_cnt;
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/// Maximum supported LC3 frames per SDU
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/// Shall be either equal to 0 or >= to chan_cnt
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/// Part of Codec Specific Capabilities only if different than 0
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uint8_t max_lc3_frame_sdu;
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/// Length of additional Codec Capabilities value
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uint8_t add_capa_len;
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/// Length of additional Metadata value
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uint8_t add_metadata_len;
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/// Additional Codec Capabilities value (in LTV format) followed by additional Metadata value
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/// (in LTV format)
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uint8_t val[__ARRAY_EMPTY];
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} bap_lc3_capa_t;
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/// Codec Capabilities structure
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typedef struct bap_vendor_codec_capa
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{
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/// Preferred Audio Context bit field
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/// Part of Metadata only if different than 0
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uint16_t context_bf;
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/// Length of additional Codec Capabilities value
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uint8_t add_capa_len;
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/// Length of additional Metadata value
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uint8_t add_metadata_len;
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/// Additional Codec Capabilities value (in LTV format) followed by additional Metadata value (in LTV format)
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uint8_t val[__ARRAY_EMPTY];
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} bap_vendor_codec_capa_t;
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/// LC3 Parameters structure
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typedef struct bap_lc3_param
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{
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/// Audio Locations of audio channels being configured for the codec
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uint32_t location_bf;
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/// Number of octets for a codec frame
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uint16_t frame_octet;
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/// Sampling frequency
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uint8_t sampling_freq;
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/// Frame duration
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uint8_t frame_dur;
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/// Number of blocks of LC3 codec frames per SDU
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uint8_t nb_lc3_frames;
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} bap_lc3_param_t;
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/// LC3 Configuration structure
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typedef struct bap_lc3_cfg
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{
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/// LC3 parameters
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bap_lc3_param_t params;
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/// Length of Codec Configuration value
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uint8_t cfg_len;
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/// Codec Configuration value (in LTV format)
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uint8_t cfg[__ARRAY_EMPTY];
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} bap_lc3_cfg_t;
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/// LC3 Configuration structure (Codec Parameters and Codec Configuration provided as pointer)
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typedef struct bap_lc3_cfg_ptr
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{
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/// Length of Codec Configuration value
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uint8_t cfg_len;
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/// LC3 parameters
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bap_lc3_param_t* p_params;
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/// Pointer to Codec Configuration value (in LTV format)
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uint8_t* p_cfg;
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} bap_lc3_cfg_ptr_t;
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/// Vendor Codec Configuration structure
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typedef struct bap_vendor_codec_cfg
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{
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/// Length of Codec Configuration value
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uint8_t cfg_len;
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/// Codec Configuration value (in LTV format)
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uint8_t cfg[__ARRAY_EMPTY];
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} bap_vendor_codec_cfg_t;
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/// Vendor Codec Configuration structure (Codec Configuration provided as pointer)
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typedef struct bap_vendor_codec_cfg_ptr
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{
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/// Length of Codec Configuration value
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uint8_t cfg_len;
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/// Pointer to Codec Configuration value (in LTV format)
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uint8_t* p_cfg;
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} bap_vendor_codec_cfg_ptr_t;
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/// Metadata for Codec Configuration structure
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typedef struct bap_metadata_cfg
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{
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/// Streaming audio context bit field
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uint16_t context_bf;
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/// Length of Metadata value
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uint8_t metadata_len;
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/// Metadata value
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uint8_t metadata[__ARRAY_EMPTY];
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} bap_metadata_cfg_t;
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/// Metadata for Codec Configuration structure (Metadata provided as pointer)
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typedef struct bap_metadata_cfg_ptr
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{
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/// Streaming audio context bit field
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uint16_t context_bf;
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/// Length of Metadata value
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uint8_t metadata_len;
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/// Pointer to Metadata value
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uint8_t* p_metadata;
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} bap_metadata_cfg_ptr_t;
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/// QoS Requirement structure
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typedef struct bap_qos_req
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{
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/// Preferred SDU interval minimum in microseconds
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/// From 255us (0xFF) to 16777215us (0xFFFFFF)
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uint32_t sdu_intv_min_us;
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/// Preferred SDU interval maximum in microseconds
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/// From 255us (0xFF) to 16777215us (0xFFFFFF)
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uint32_t sdu_intv_max_us;
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/// Presentation delay minimum microseconds
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uint32_t pres_delay_min_us;
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/// Presentation delay maximum in microseconds
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uint32_t pres_delay_max_us;
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/// Preferred Transport latency maximum in milliseconds
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/// From 5ms (0x5) to 4000ms (0xFA0)
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|
uint16_t trans_latency_max_ms;
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|
/// Preferred maximum SDU size
|
|
/// From 0 to 4095 bytes (0xFFF)
|
|
uint16_t max_sdu_size;
|
|
/// Preferred PDU framing arrangement
|
|
uint8_t framing;
|
|
/// Preferred PHY bit field
|
|
uint8_t phy_bf;
|
|
/// Preferred maximum number of retransmissions for each CIS Data PDU
|
|
/// From 0 to 15
|
|
uint8_t retx_nb;
|
|
} bap_qos_req_t;
|
|
|
|
/// QoS Configuration structure
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|
typedef struct bap_qos_cfg
|
|
{
|
|
/// PDU framing arrangement
|
|
uint8_t framing;
|
|
/// PHY
|
|
uint8_t phy;
|
|
/// Maximum number of retransmissions for each CIS Data PDU
|
|
/// From 0 to 15
|
|
uint8_t retx_nb;
|
|
/// Maximum SDU size
|
|
/// From 0 to 4095 bytes (0xFFF)
|
|
uint16_t max_sdu_size;
|
|
/// Transport latency in milliseconds
|
|
/// From 5ms (0x5) to 4000ms (0xFA0)
|
|
uint16_t trans_latency_ms;
|
|
/// Presentation delay in microseconds
|
|
uint32_t pres_delay_us;
|
|
/// SDU interval in microseconds
|
|
/// From 255us (0xFF) to 16777215us (0xFFFFFF)
|
|
uint32_t sdu_intv_us;
|
|
} bap_qos_cfg_t;
|
|
|
|
/*
|
|
* CALLBACK FUNCTIONS DEFINITION
|
|
****************************************************************************************
|
|
*/
|
|
|
|
typedef struct bap_capa_srv_cb bap_capa_srv_cb_t;
|
|
typedef struct bap_capa_cli_cb bap_capa_cli_cb_t;
|
|
typedef struct bap_uc_srv_cb bap_uc_srv_cb_t;
|
|
typedef struct bap_uc_cli_cb bap_uc_cli_cb_t;
|
|
typedef struct bap_bc_src_cb bap_bc_src_cb_t;
|
|
typedef struct bap_bc_sink_cb bap_bc_sink_cb_t;
|
|
typedef struct bap_bc_scan_cb bap_bc_scan_cb_t;
|
|
typedef struct bap_bc_assist_cb bap_bc_assist_cb_t;
|
|
typedef struct bap_bc_deleg_cb bap_bc_deleg_cb_t;
|
|
|
|
/// Basic Audio Profile callback set for each roles
|
|
typedef struct bap_cb
|
|
{
|
|
/// Capabilities Server callback functions
|
|
const bap_capa_srv_cb_t* p_capa_srv_cb;
|
|
/// Capabilities Client callback functions
|
|
const bap_capa_cli_cb_t* p_capa_cli_cb;
|
|
/// Unicast Server callback functions
|
|
const bap_uc_srv_cb_t* p_uc_srv_cb;
|
|
/// Unicast Client callbacks
|
|
const bap_uc_cli_cb_t* p_uc_cli_cb;
|
|
/// Broadcast Source callback functions
|
|
const bap_bc_src_cb_t* p_bc_src_cb;
|
|
/// Broadcast Sink callback functions
|
|
const bap_bc_sink_cb_t* p_bc_sink_cb;
|
|
/// Broadcast Scan callback functions
|
|
const bap_bc_scan_cb_t* p_bc_scan_cb;
|
|
/// Broadcast Scan Assistant callbacks
|
|
const bap_bc_assist_cb_t* p_bc_assist_cb;
|
|
/// Broadcast Scan Delegator callbacks
|
|
const bap_bc_deleg_cb_t* p_bc_deleg_cb;
|
|
} bap_cb_t;
|
|
|
|
/*
|
|
* API FUNCTION DEFINITION
|
|
****************************************************************************************
|
|
*/
|
|
|
|
/**
|
|
****************************************************************************************
|
|
* @brief Configure Basic Audio profile
|
|
*
|
|
* @param[in] role_bf Supported role bit field (@see enum gaf_role_bf)
|
|
* @param[in] p_capa_srv_cfg Pointer to Capabilities Server configuration
|
|
* @param[in] p_capa_cli_cfg Pointer to Capabilities Client configuration
|
|
* @param[in] p_uc_srv_cfg Pointer to Unicast Server configuration
|
|
* @param[in] p_uc_cli_cfg Pointer to Unicast Client configuration
|
|
* @param[in] p_bc_scan_cfg Pointer to Broadcast Scan configuration
|
|
* @param[in] p_bc_deleg_cfg Pointer to Broadcast Delegator configuration
|
|
* @param[in] p_cb Pointer to callback structure
|
|
*
|
|
* @return status of function execution (@see gaf_err)
|
|
****************************************************************************************
|
|
*/
|
|
uint16_t bap_configure(uint32_t role_bf, bap_capa_srv_cfg_t* p_capa_srv_cfg, bap_capa_cli_cfg_t* p_capa_cli_cfg,
|
|
bap_uc_srv_cfg_t* p_uc_srv_cfg, bap_uc_cli_cfg_t* p_uc_cli_cfg,
|
|
bap_bc_scan_cfg_t* p_bc_scan_cfg, bap_bc_deleg_cfg_t* p_bc_deleg_cfg,
|
|
bap_bc_assist_cfg_t* p_bc_assist_cfg, const bap_cb_t* p_cb);
|
|
|
|
/// @}
|
|
|
|
#endif // BAP_H_
|