audio.h

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/*
 * Copyright (c) 2020 Intel Corporation
 * Copyright (c) 2020-2022 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_AUDIO_H_
#define ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_AUDIO_H_
 
#include <sys/atomic.h>
#include <bluetooth/buf.h>
#include <bluetooth/conn.h>
#include <bluetooth/hci.h>
#include <bluetooth/iso.h>
#include <bluetooth/gatt.h>
#include <bluetooth/audio/lc3.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define BT_AUDIO_BROADCAST_ID_SIZE               3 /* octets */
 
/* Audio Context Type, Generic Audio */
#define BT_AUDIO_CONTEXT_TYPE_PROHIBITED         BIT(0)
#define BT_AUDIO_CONTEXT_TYPE_UNSPECIFIED        BIT(1)
#define BT_AUDIO_CONTEXT_TYPE_CONVERSATIONAL     BIT(2)
#define BT_AUDIO_CONTEXT_TYPE_MEDIA              BIT(3)
#define BT_AUDIO_CONTEXT_TYPE_GAME               BIT(4)
#define BT_AUDIO_CONTEXT_TYPE_INSTRUCTIONAL      BIT(5)
#define BT_AUDIO_CONTEXT_TYPE_VOICE_ASSISTANTS   BIT(6)
#define BT_AUDIO_CONTEXT_TYPE_LIVE               BIT(7)
#define BT_AUDIO_CONTEXT_TYPE_SOUND_EFFECTS      BIT(8)
#define BT_AUDIO_CONTEXT_TYPE_NOTIFICATIONS      BIT(9)
#define BT_AUDIO_CONTEXT_TYPE_RINGTONE           BIT(10)
#define BT_AUDIO_CONTEXT_TYPE_ALERTS             BIT(11)
#define BT_AUDIO_CONTEXT_TYPE_EMERGENCY_ALARM    BIT(12)
 
/* Unicast Announcement Type, Generic Audio */
#define BT_AUDIO_UNICAST_ANNOUNCEMENT_GENERAL    0x00
#define BT_AUDIO_UNICAST_ANNOUNCEMENT_TARGETED   0x01
 
#if defined(CONFIG_BT_AUDIO_BROADCAST_SINK)
#define BROADCAST_SNK_STREAM_CNT CONFIG_BT_AUDIO_BROADCAST_SNK_STREAM_COUNT
#define BROADCAST_SUBGROUP_CNT CONFIG_BT_AUDIO_BROADCAST_SUBGROUP_COUNT
#else /* !CONFIG_BT_AUDIO_BROADCAST_SINK */
#define BROADCAST_SNK_STREAM_CNT 0
#define BROADCAST_SUBGROUP_CNT 0
#endif /* CONFIG_BT_AUDIO_BROADCAST_SINK*/
 
struct bt_audio_unicast_group;
 
struct bt_audio_broadcast_sink;
 
struct bt_audio_broadcast_source;
 
struct bt_codec_data {
        struct bt_data data;
        uint8_t  value[CONFIG_BT_CODEC_MAX_DATA_LEN];
};
 
#define BT_CODEC_DATA(_type, _bytes...) \
        { \
                .data = BT_DATA(_type, ((uint8_t []) { _bytes }), \
                                sizeof((uint8_t []) { _bytes })) \
        }
 
#define BT_CODEC(_id, _cid, _vid, _data, _meta) \
        { \
                .id = _id, \
                .cid = _cid, \
                .vid = _vid, \
                .data_count = ARRAY_SIZE(((struct bt_codec_data[]) _data)), \
                .data = _data, \
                .meta_count = ARRAY_SIZE(((struct bt_codec_data[]) _meta)), \
                .meta = _meta, \
        }
 
/* TODO: Remove base once LTV types are defined, are these specific to LC3? */
#define BT_CODEC_META_BASE               0x01
 
#define BT_CODEC_META_PREFER_CONTEXT     (BT_CODEC_META_BASE)
#define BT_CODEC_META_CONTEXT            (BT_CODEC_META_BASE + 1)
 
/* @def BT_CODEC_META_CONTEXT_NONE
 *
 * Unspecified. Matches any audio content.
 */
#define BT_CODEC_META_CONTEXT_NONE       BIT(0)
 
/* @def BT_CODEC_META_CONTEXT_VOICE
 *
 * Conversation between humans as, for example, in telephony or video calls.
 */
#define BT_CODEC_META_CONTEXT_VOICE      BIT(1)
 
/* @def BT_CODEC_META_CONTEXT_MEDIA
 *
 * Media as, for example, in music, public radio, podcast or video soundtrack.
 * Conversation between humans as, for example, in telephony or video calls.
 */
#define BT_CODEC_META_CONTEXT_MEDIA      BIT(2)
 
/* @def BT_CODEC_META_CONTEXT_INSTRUCTION
 *
 * Instructional audio as, for example, in navigation, traffic announcements or
 * user guidance.
 */
#define BT_CODEC_META_CONTEXT_INSTRUCTION BIT(3)
 
/* @def BT_CODEC_META_CONTEXT_ATTENTION
 *
 * Attention seeking audio as, for example, in beeps signalling arrival of a
 * message or keyboard clicks.
 */
#define BT_CODEC_META_CONTEXT_ATTENTION  BIT(4)
 
/* @def BT_CODEC_META_CONTEXT_ALERT
 *
 * Immediate alerts as, for example, in a low battery alarm, timer expiry or
 * alarm clock.
 */
#define BT_CODEC_META_CONTEXT_ALERT      BIT(5)
 
/* @def BT_CODEC_META_CONTEXT_MAN_MACHINE
 *
 * Man machine communication as, for example, with voice recognition or
 * virtual assistant.
 */
#define BT_CODEC_META_CONTEXT_MAN_MACHINE BIT(6)
 
/* @def BT_CODEC_META_CONTEXT_EMERGENCY
 *
 * Emergency alerts as, for example, with fire alarms or other urgent alerts.
 */
#define BT_CODEC_META_CONTEXT_EMERGENCY  BIT(7)
 
/* @def BT_CODEC_META_CONTEXT_RINGTONE
 *
 * Ringtone as in a call alert.
 */
#define BT_CODEC_META_CONTEXT_RINGTONE   BIT(8)
 
/* @def BT_CODEC_META_CONTEXT_TV
 *
 * Audio associated with a television program and/or with metadata conforming
 * to the Bluetooth Broadcast TV profile.
 */
#define BT_CODEC_META_CONTEXT_TV         BIT(9)
 
/* @def BT_CODEC_META_CONTEXT_ANY
 *
 * Any known context.
 */
#define BT_CODEC_META_CONTEXT_ANY        (BT_CODEC_META_CONTEXT_NONE | \
                                          BT_CODEC_META_CONTEXT_VOICE | \
                                          BT_CODEC_META_CONTEXT_MEDIA | \
                                          BT_CODEC_META_CONTEXT_INSTRUCTION | \
                                          BT_CODEC_META_CONTEXT_ATTENTION | \
                                          BT_CODEC_META_CONTEXT_ALERT | \
                                          BT_CODEC_META_CONTEXT_MAN_MACHINE | \
                                          BT_CODEC_META_CONTEXT_EMERGENCY | \
                                          BT_CODEC_META_CONTEXT_RINGTONE | \
                                          BT_CODEC_META_CONTEXT_TV)
 
struct bt_codec {
        uint8_t  id;
        uint16_t cid;
        uint16_t vid;
        uint8_t  data_count;
        struct bt_codec_data data[CONFIG_BT_CODEC_MAX_DATA_COUNT];
        uint8_t  meta_count;
        struct bt_codec_data meta[CONFIG_BT_CODEC_MAX_METADATA_COUNT];
};
 
struct bt_audio_base_bis_data {
        /* Unique index of the BIS */
        uint8_t index;
        uint8_t  data_count;
        struct bt_codec_data data[CONFIG_BT_CODEC_MAX_DATA_COUNT];
};
 
struct bt_audio_base_subgroup {
        /* Number of BIS in the subgroup */
        uint8_t bis_count;
        struct bt_codec codec;
        /* Array of BIS specific data for each BIS in the subgroup */
        struct bt_audio_base_bis_data bis_data[BROADCAST_SNK_STREAM_CNT];
};
 
struct bt_audio_base {
        /* Number of subgroups in the BASE */
        uint8_t subgroup_count;
        /* Array of subgroups in the BASE */
        struct bt_audio_base_subgroup subgroups[BROADCAST_SUBGROUP_CNT];
};
 
#define BT_CODEC_QOS(_dir, _interval, _framing, _phy, _sdu, _rtn, _latency, \
                     _pd) \
        { \
                .dir = _dir, \
                .interval = _interval, \
                .framing = _framing, \
                .phy = _phy, \
                .sdu = _sdu, \
                .rtn = _rtn, \
                .latency = _latency, \
                .pd = _pd, \
        }
 
enum {
        BT_CODEC_QOS_IN,
        BT_CODEC_QOS_OUT,
        BT_CODEC_QOS_INOUT
};
 
enum {
        BT_CODEC_QOS_UNFRAMED = 0x00,
        BT_CODEC_QOS_FRAMED = 0x01,
};
 
enum {
        BT_CODEC_QOS_1M = BIT(0),
        BT_CODEC_QOS_2M = BIT(1),
        BT_CODEC_QOS_CODED = BIT(2),
};
 
#define BT_CODEC_QOS_IN_UNFRAMED(_interval, _sdu, _rtn, _latency, _pd) \
        BT_CODEC_QOS(BT_CODEC_QOS_IN, _interval, BT_CODEC_QOS_UNFRAMED, \
                     BT_CODEC_QOS_2M, _sdu, _rtn, _latency, _pd)
 
#define BT_CODEC_QOS_OUT_UNFRAMED(_interval, _sdu, _rtn, _latency, _pd) \
        BT_CODEC_QOS(BT_CODEC_QOS_OUT, _interval, BT_CODEC_QOS_UNFRAMED, \
                     BT_CODEC_QOS_2M, _sdu, _rtn, _latency, _pd)
 
#define BT_CODEC_QOS_INOUT_UNFRAMED(_interval, _sdu, _rtn, _latency, _pd) \
        BT_CODEC_QOS(BT_CODEC_QOS_INOUT, _interval, BT_CODEC_QOS_UNFRAMED, \
                     BT_CODEC_QOS_2M, _sdu, _rtn, _latency, _pd)
 
#define BT_CODEC_QOS_IN_FRAMED(_interval, _sdu, _rtn, _latency, _pd) \
        BT_CODEC_QOS(BT_CODEC_QOS_IN, _interval, BT_CODEC_QOS_FRAMED, \
                     BT_CODEC_QOS_2M, _sdu, _rtn, _latency, _pd)
 
#define BT_CODEC_QOS_OUT_FRAMED(_interval, _sdu, _rtn, _latency, _pd) \
        BT_CODEC_QOS(BT_CODEC_QOS_OUT, _interval, BT_CODEC_QOS_FRAMED, \
                     BT_CODEC_QOS_2M, _sdu, _rtn, _latency, _pd)
 
#define BT_CODEC_QOS_INOUT_FRAMED(_interval, _sdu, _rtn, _latency, _pd) \
        BT_CODEC_QOS(BT_CODEC_QOS_INOUT, _interval, BT_CODEC_QOS_FRAMED, \
                     BT_CODEC_QOS_2M, _sdu, _rtn, _latency, _pd)
 
struct bt_codec_qos {
        uint8_t  dir;
 
        uint8_t  phy;
 
        uint8_t  framing;
 
        uint8_t rtn;
 
        uint16_t sdu;
 
        uint16_t latency;
 
        uint32_t interval;
        uint32_t pd;
};
 
#define BT_CODEC_QOS_PREF(_unframed_supported, _phy, _rtn, _latency, _pd_min, \
                          _pd_max, _pref_pd_min, _pref_pd_max) \
        { \
                .unframed_supported = _unframed_supported, \
                .phy = _phy, \
                .rtn = _rtn, \
                .latency = _latency, \
                .pd_min = _pd_min, \
                .pd_max = _pd_max, \
                .pref_pd_min = _pref_pd_min, \
                .pref_pd_max = _pref_pd_max, \
        }
 
struct bt_codec_qos_pref {
        bool unframed_supported;
 
        uint8_t phy;
 
        uint8_t rtn;
 
        uint16_t latency;
 
        uint32_t pd_min;
 
        uint32_t pd_max;
 
        uint32_t pref_pd_min;
 
        uint32_t pref_pd_max;
};
 
struct bt_audio_lc3_preset {
        struct bt_codec codec;
        struct bt_codec_qos qos;
};
 
#define BT_AUDIO_LC3_PRESET(_codec, _qos) \
        { \
                .codec = _codec, \
                .qos = _qos, \
        }
 
/* LC3 Unicast presets defined by table 5.2 in the BAP v1.0 specification */
#define BT_AUDIO_LC3_UNICAST_PRESET_8_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_8_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(26u, 2u, 8u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_8_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_8_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(30u, 2u, 10u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_16_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_16_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(30u, 2u, 8u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_16_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_16_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(40u, 2u, 10u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_24_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_24_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(45u, 2u, 8u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_24_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_24_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(60u, 2u, 10u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_32_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_32_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(60u, 2u, 8u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_32_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_32_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(80u, 2u, 10u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_441_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_441_1, \
                BT_CODEC_QOS(BT_CODEC_QOS_OUT, 8163u, BT_CODEC_QOS_FRAMED, \
                             BT_CODEC_QOS_2M, 97u, 5u, 24u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_441_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_441_2, \
                BT_CODEC_QOS(BT_CODEC_QOS_OUT, 10884u, BT_CODEC_QOS_FRAMED, \
                             BT_CODEC_QOS_2M, 130u, 5u, 31u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_1, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(75u, 5u, 15u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_2, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(100u, 5u, 20u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_3_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_3, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(90u, 5u, 15u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_4_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_4, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(120u, 5u, 20u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_5_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_5, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(117u, 5u, 15u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_6_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_6, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(155u, 5u, 20u, 40000u) \
        )
 
/* Following presets are for unicast high reliability audio data */
#define BT_AUDIO_LC3_UNICAST_PRESET_8_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_8_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(26u, 13u, 75u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_8_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_8_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(30u, 13u, 95u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_16_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_16_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(30u, 13u, 75u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_16_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_16_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(40u, 13u, 95u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_24_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_24_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(45u, 13u, 75u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_24_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_24_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(60u, 13u, 95u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_32_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_32_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(60u, 13u, 75u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_32_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_32_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(80u, 13u, 95u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_441_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_441_1, \
                BT_CODEC_QOS(BT_CODEC_QOS_OUT, 8163u, BT_CODEC_QOS_FRAMED, \
                             BT_CODEC_QOS_2M, 97u, 13u, 80u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_441_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_441_2, \
                BT_CODEC_QOS(BT_CODEC_QOS_OUT, 10884u, BT_CODEC_QOS_FRAMED, \
                             BT_CODEC_QOS_2M, 130u, 13u, 85u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_1, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(75u, 13u, 75u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_2, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(100u, 13u, 95u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_3_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_3, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(90u, 13u, 75u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_4_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_4, \
        BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(120u, 13u, 100u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_5_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_5, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(117u, 13u, 75u, 40000u) \
        )
 
#define BT_AUDIO_LC3_UNICAST_PRESET_48_6_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_6, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(155u, 13u, 100u, 40000u) \
        )
 
/* LC3 Broadcast presets defined by table 6.4 in the BAP v1.0 specification */
#define BT_AUDIO_LC3_BROADCAST_PRESET_8_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_8_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(26u, 2u, 8u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_8_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_8_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(30u, 2u, 10u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_16_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_16_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(30u, 2u, 8u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_16_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_16_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(40u, 2u, 10u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_24_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_24_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(45u, 2u, 8u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_24_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_24_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(60u, 2u, 10u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_32_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_32_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(60u, 2u, 8u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_32_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_32_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(80u, 2u, 10u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_441_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_441_1, \
                BT_CODEC_QOS(BT_CODEC_QOS_OUT, 8163u, BT_CODEC_QOS_FRAMED, \
                             BT_CODEC_QOS_2M, 97u, 4u, 24u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_441_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_441_2, \
                BT_CODEC_QOS(BT_CODEC_QOS_OUT, 10884u, BT_CODEC_QOS_FRAMED, \
                             BT_CODEC_QOS_2M, 130u, 4u, 31u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_1_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_1, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(75u, 4u, 15u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_2_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_2, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(100u, 4u, 20u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_3_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_3, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(90u, 4u, 15u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_4_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_4, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(120u, 4u, 20u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_5_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_5, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(117u, 4u, 15u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_6_1 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_6, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(155u, 4u, 20u, 40000u) \
        )
 
/* Following presets are for broadcast high reliability audio data */
#define BT_AUDIO_LC3_BROADCAST_PRESET_8_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_8_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(26u, 4u, 45u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_8_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_8_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(30u, 4u, 60u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_16_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_16_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(30u, 4u, 45u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_16_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_16_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(40u, 4u, 60u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_24_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_24_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(45u, 4u, 45u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_24_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_24_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(60u, 4u, 60u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_32_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_32_1, \
                BT_CODEC_LC3_QOS_7_5_INOUT_UNFRAMED(60u, 4u, 45u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_32_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_32_2, \
                BT_CODEC_LC3_QOS_10_INOUT_UNFRAMED(80u, 4u, 60u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_441_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_441_1, \
                BT_CODEC_QOS(BT_CODEC_QOS_OUT, 8163u, BT_CODEC_QOS_FRAMED, \
                             BT_CODEC_QOS_2M, 97u, 4u, 54u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_441_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_441_2, \
                BT_CODEC_QOS(BT_CODEC_QOS_OUT, 10884u, BT_CODEC_QOS_FRAMED, \
                             BT_CODEC_QOS_2M, 130u, 4u, 60u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_1_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_1, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(75u, 4u, 50u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_2_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_2, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(100u, 4u, 65u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_3_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_3, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(90u, 4u, 50u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_4_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_4, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(120u, 4u, 65u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_5_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_5, \
                BT_CODEC_LC3_QOS_7_5_OUT_UNFRAMED(117u, 4u, 50u, 40000u) \
        )
 
#define BT_AUDIO_LC3_BROADCAST_PRESET_48_6_2 \
        BT_AUDIO_LC3_PRESET( \
                BT_CODEC_LC3_CONFIG_48_6, \
                BT_CODEC_LC3_QOS_10_OUT_UNFRAMED(155u, 4u, 65u, 40000u) \
        )
 
struct bt_audio_stream {
        struct bt_conn *conn;
        struct bt_audio_ep *ep;
        struct bt_codec *codec;
        struct bt_codec_qos *qos;
        struct bt_iso_chan *iso;
        struct bt_audio_stream_ops *ops;
        sys_snode_t node;
 
        union {
                void *group;
                struct bt_audio_unicast_group *unicast_group;
                struct bt_audio_broadcast_source *broadcast_source;
                struct bt_audio_broadcast_sink *broadcast_sink;
        };
 
        void *user_data;
};
 
struct bt_audio_unicast_server_cb {
        int (*config)(struct bt_conn *conn,
                      const struct bt_audio_ep *ep,
                      uint8_t type,
                      const struct bt_codec *codec,
                      struct bt_audio_stream **stream,
                      struct bt_codec_qos_pref *const pref);
 
        int (*reconfig)(struct bt_audio_stream *stream,
                        uint8_t type,
                        const struct bt_codec *codec,
                        struct bt_codec_qos_pref *const pref);
 
        int (*qos)(struct bt_audio_stream *stream,
                   const struct bt_codec_qos *qos);
 
        int (*enable)(struct bt_audio_stream *stream, uint8_t meta_count,
                      const struct bt_codec_data *meta);
 
        int (*start)(struct bt_audio_stream *stream);
 
        int (*metadata)(struct bt_audio_stream *stream, uint8_t meta_count,
                        const struct bt_codec_data *meta);
 
        int (*disable)(struct bt_audio_stream *stream);
 
        int (*stop)(struct bt_audio_stream *stream);
 
        int (*release)(struct bt_audio_stream *stream);
 
        int (*publish_capability)(struct bt_conn *conn, uint8_t type,
                                  uint8_t index, struct bt_codec *const codec);
};
 
struct bt_audio_broadcast_sink_cb {
        bool (*scan_recv)(const struct bt_le_scan_recv_info *info,
                          uint32_t broadcast_id);
 
        void (*pa_synced)(struct bt_audio_broadcast_sink *sink,
                          struct bt_le_per_adv_sync *sync,
                          uint32_t broadcast_id);
 
        void (*base_recv)(struct bt_audio_broadcast_sink *sink,
                          const struct bt_audio_base *base);
 
        void (*syncable)(struct bt_audio_broadcast_sink *sink, bool encrypted);
 
        void (*scan_term)(int err);
 
        void (*pa_sync_lost)(struct bt_audio_broadcast_sink *sink);
 
        /* Internally used list node */
        sys_snode_t node;
};
 
struct bt_audio_stream_ops {
        void (*configured)(struct bt_audio_stream *stream,
                           const struct bt_codec_qos_pref *pref);
 
        void (*qos_set)(struct bt_audio_stream *stream);
 
        void (*enabled)(struct bt_audio_stream *stream);
 
        void (*started)(struct bt_audio_stream *stream);
 
        void (*metadata_updated)(struct bt_audio_stream *stream);
 
        void (*disabled)(struct bt_audio_stream *stream);
 
        void (*stopped)(struct bt_audio_stream *stream);
 
        void (*released)(struct bt_audio_stream *stream);
 
        void (*connected)(struct bt_audio_stream *stream);
 
        void (*disconnected)(struct bt_audio_stream *stream, uint8_t reason);
 
        void (*recv)(struct bt_audio_stream *stream, struct net_buf *buf);
};
 
enum bt_audio_pac_type {
        BT_AUDIO_SINK = 0x01,
        BT_AUDIO_SOURCE = 0x02,
};
 
void bt_audio_stream_cb_register(struct bt_audio_stream *stream,
                                 struct bt_audio_stream_ops *ops);
 
int bt_audio_unicast_server_register_cb(const struct bt_audio_unicast_server_cb *cb);
 
int bt_audio_unicast_server_unregister_cb(const struct bt_audio_unicast_server_cb *cb);
 
struct bt_audio_discover_params;
 
typedef void (*bt_audio_discover_func_t)(struct bt_conn *conn,
                                         struct bt_codec *codec,
                                         struct bt_audio_ep *ep,
                                         struct bt_audio_discover_params *params);
 
struct bt_audio_discover_params {
        uint8_t  type;
        bt_audio_discover_func_t func;
        uint8_t  num_caps;
        uint8_t  num_eps;
        uint8_t  err;
        struct bt_gatt_read_params read;
        struct bt_gatt_discover_params discover;
};
 
int bt_audio_discover(struct bt_conn *conn,
                      struct bt_audio_discover_params *params);
 
int bt_audio_stream_config(struct bt_conn *conn,
                           struct bt_audio_stream *stream,
                           struct bt_audio_ep *ep,
                           struct bt_codec *codec);
 
int bt_audio_stream_reconfig(struct bt_audio_stream *stream,
                             struct bt_codec *codec);
 
int bt_audio_stream_qos(struct bt_conn *conn,
                        struct bt_audio_unicast_group *group,
                        struct bt_codec_qos *qos);
 
int bt_audio_stream_enable(struct bt_audio_stream *stream,
                           uint8_t meta_count, struct bt_codec_data *meta);
 
int bt_audio_stream_metadata(struct bt_audio_stream *stream,
                             uint8_t meta_count, struct bt_codec_data *meta);
 
int bt_audio_stream_disable(struct bt_audio_stream *stream);
 
int bt_audio_stream_start(struct bt_audio_stream *stream);
 
int bt_audio_stream_stop(struct bt_audio_stream *stream);
 
int bt_audio_stream_release(struct bt_audio_stream *stream, bool cache);
 
int bt_audio_stream_send(struct bt_audio_stream *stream, struct net_buf *buf);
 
int bt_audio_unicast_group_create(struct bt_audio_stream *streams,
                                  uint8_t num_stream,
                                  struct bt_audio_unicast_group **unicast_group);
 
int bt_audio_unicast_group_delete(struct bt_audio_unicast_group *unicast_group);
 
int bt_audio_broadcast_source_create(struct bt_audio_stream *streams,
                                     uint8_t num_stream,
                                     struct bt_codec *codec,
                                     struct bt_codec_qos *qos,
                                     struct bt_audio_broadcast_source **source);
 
int bt_audio_broadcast_source_reconfig(struct bt_audio_broadcast_source *source,
                                       struct bt_codec *codec,
                                       struct bt_codec_qos *qos);
 
int bt_audio_broadcast_source_start(struct bt_audio_broadcast_source *source);
 
int bt_audio_broadcast_source_stop(struct bt_audio_broadcast_source *source);
 
int bt_audio_broadcast_source_delete(struct bt_audio_broadcast_source *source);
 
void bt_audio_broadcast_sink_register_cb(struct bt_audio_broadcast_sink_cb *cb);
 
int bt_audio_broadcast_sink_scan_start(const struct bt_le_scan_param *param);
 
int bt_audio_broadcast_sink_scan_stop(void);
 
int bt_audio_broadcast_sink_sync(struct bt_audio_broadcast_sink *sink,
                                 uint32_t indexes_bitfield,
                                 struct bt_audio_stream *streams,
                                 struct bt_codec *codec,
                                 const uint8_t broadcast_code[16]);
 
int bt_audio_broadcast_sink_stop(struct bt_audio_broadcast_sink *sink);
 
int bt_audio_broadcast_sink_delete(struct bt_audio_broadcast_sink *sink);
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_BLUETOOTH_AUDIO_H_ */