1dd59ea203
Removed the LE Audio specific definition and instead refer to the value defined by iso.h as it is ISO/Core that defines this size, and not BAP/Audio. Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
145 lines
3.5 KiB
C
145 lines
3.5 KiB
C
/** @file
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* @brief Internal header for Bluetooth BAP.
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*/
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/*
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* Copyright (c) 2019 Bose Corporation
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* Copyright (c) 2021-2023 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <zephyr/bluetooth/audio/audio.h>
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#include <zephyr/bluetooth/audio/bap.h>
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#include <zephyr/bluetooth/addr.h>
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#include <zephyr/bluetooth/conn.h>
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#include <zephyr/bluetooth/iso.h>
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#include <zephyr/sys/util_macro.h>
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#include <zephyr/types.h>
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#define BT_BAP_BASS_SCAN_STATE_NOT_SCANNING 0x00
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#define BT_BAP_BASS_SCAN_STATE_SCANNING 0x01
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#define BT_BAP_BASS_OP_SCAN_STOP 0x00
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#define BT_BAP_BASS_OP_SCAN_START 0x01
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#define BT_BAP_BASS_OP_ADD_SRC 0x02
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#define BT_BAP_BASS_OP_MOD_SRC 0x03
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#define BT_BAP_BASS_OP_BROADCAST_CODE 0x04
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#define BT_BAP_BASS_OP_REM_SRC 0x05
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#define BT_BAP_BASS_SCAN_STATE_IDLE 0x00
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#define BT_BAP_BASS_SCAN_STATE_SCANNING 0x01
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#define BT_BAP_BASS_SCAN_STATE_FAILED 0x02
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#define BT_BAP_BASS_SCAN_STATE_SYNCED 0x03
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#define BT_BAP_BASS_PA_REQ_NO_SYNC 0x00
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#define BT_BAP_BASS_PA_REQ_SYNC_PAST 0x01
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#define BT_BAP_BASS_PA_REQ_SYNC 0x02
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#define BT_BAP_BASS_VALID_OPCODE(opcode) ((opcode) <= BT_BAP_BASS_OP_REM_SRC)
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struct bt_bap_bass_cp_scan_stop {
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uint8_t opcode;
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} __packed;
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struct bt_bap_bass_cp_scan_start {
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uint8_t opcode;
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} __packed;
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struct bt_bap_bass_cp_subgroup {
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uint32_t bis_sync;
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uint8_t metadata_len;
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uint8_t metadata[0];
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} __packed;
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struct bt_bap_bass_cp_add_src {
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uint8_t opcode;
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bt_addr_le_t addr;
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uint8_t adv_sid;
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uint8_t broadcast_id[BT_AUDIO_BROADCAST_ID_SIZE];
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uint8_t pa_sync;
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uint16_t pa_interval;
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uint8_t num_subgroups;
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struct bt_bap_bass_cp_subgroup subgroups[0];
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} __packed;
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struct bt_bap_bass_cp_mod_src {
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uint8_t opcode;
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uint8_t src_id;
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uint8_t pa_sync;
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uint16_t pa_interval;
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uint8_t num_subgroups;
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struct bt_bap_bass_cp_subgroup subgroups[0];
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} __packed;
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struct bt_bap_bass_cp_broadcase_code {
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uint8_t opcode;
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uint8_t src_id;
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uint8_t broadcast_code[BT_ISO_BROADCAST_CODE_SIZE];
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} __packed;
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struct bt_bap_bass_cp_rem_src {
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uint8_t opcode;
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uint8_t src_id;
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} __packed;
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union bt_bap_bass_cp {
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uint8_t opcode;
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struct bt_bap_bass_cp_scan_stop scan_stop;
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struct bt_bap_bass_cp_scan_start scan_start;
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struct bt_bap_bass_cp_add_src add_src;
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struct bt_bap_bass_cp_mod_src mod_src;
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struct bt_bap_bass_cp_broadcase_code broadcast_code;
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struct bt_bap_bass_cp_rem_src rem_src;
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};
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static inline const char *bt_bap_pa_state_str(uint8_t state)
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{
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switch (state) {
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case BT_BAP_PA_STATE_NOT_SYNCED:
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return "Not synchronized to PA";
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case BT_BAP_PA_STATE_INFO_REQ:
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return "SyncInfo Request";
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case BT_BAP_PA_STATE_SYNCED:
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return "Synchronized to PA";
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case BT_BAP_PA_STATE_FAILED:
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return "Failed to synchronize to PA";
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case BT_BAP_PA_STATE_NO_PAST:
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return "No PAST";
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default:
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return "unknown state";
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}
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}
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static inline const char *bt_bap_big_enc_state_str(uint8_t state)
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{
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switch (state) {
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case BT_BAP_BIG_ENC_STATE_NO_ENC:
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return "Not encrypted";
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case BT_BAP_BIG_ENC_STATE_BCODE_REQ:
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return "Broadcast_Code required";
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case BT_BAP_BIG_ENC_STATE_DEC:
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return "Decrypting";
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case BT_BAP_BIG_ENC_STATE_BAD_CODE:
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return "Bad_Code (incorrect encryption key)";
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default:
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return "unknown state";
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}
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}
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static inline bool valid_bis_syncs(uint32_t bis_sync)
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{
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if (bis_sync == BT_BAP_BIS_SYNC_NO_PREF) {
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return true;
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}
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if (bis_sync > BIT_MASK(BT_ISO_MAX_GROUP_ISO_COUNT)) {
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return false;
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}
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return true;
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}
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