1 /* btp_bap_broadcast.h - Bluetooth BAP Tester */
2 
3 /*
4  * Copyright (c) 2023 Codecoup
5  *
6  * SPDX-License-Identifier: Apache-2.0
7  */
8 
9 #include <zephyr/bluetooth/audio/cap.h>
10 
11 struct btp_bap_broadcast_stream {
12 	struct btp_bap_audio_stream audio_stream;
13 	struct bt_audio_codec_cfg codec_cfg;
14 	uint8_t bis_id;
15 	uint8_t subgroup_id;
16 	bool bis_synced;
17 	uint8_t source_id;
18 	bool in_use;
19 	bool already_sent;
20 };
21 
22 /* According to BT spec, a Broadcast Source can configure and establish one or more BIGs,
23  * each containing one or more BISes that are used to transport broadcast Audio Streams.
24  * For each BIG, the Broadcast Source shall generate a Broadcast_ID.
25  * For the time being, let's treat broadcast source as one BIG.
26  */
27 struct btp_bap_broadcast_remote_source {
28 	bt_addr_le_t address;
29 	uint32_t broadcast_id;
30 	struct btp_bap_broadcast_stream streams[CONFIG_BT_BAP_BROADCAST_SNK_STREAM_COUNT];
31 	struct bt_bap_stream *sink_streams[CONFIG_BT_BAP_BROADCAST_SNK_STREAM_COUNT];
32 	struct bt_bap_broadcast_sink *sink;
33 	struct bt_bap_qos_cfg qos;
34 	/* BIS Index bitfield read from Base */
35 	uint32_t bis_index_bitfield;
36 	/* BIS Index bitfield read from sync request */
37 	uint32_t requested_bis_sync;
38 	bool assistant_request;
39 	uint8_t sink_broadcast_code[BT_ISO_BROADCAST_CODE_SIZE];
40 	const struct bt_bap_scan_delegator_recv_state *sink_recv_state;
41 };
42 
43 struct btp_bap_broadcast_local_source {
44 	uint32_t broadcast_id;
45 	struct bt_bap_qos_cfg qos;
46 	struct btp_bap_broadcast_stream streams[CONFIG_BT_BAP_BROADCAST_SRC_STREAM_COUNT];
47 	struct bt_audio_codec_cfg subgroup_codec_cfg[CONFIG_BT_BAP_BROADCAST_SRC_SUBGROUP_COUNT];
48 	uint8_t stream_count;
49 	/* Only for BTP BAP commands */
50 	struct bt_bap_broadcast_source *bap_broadcast;
51 	/* Only for BTP CAP commands */
52 	struct bt_cap_broadcast_source *cap_broadcast;
53 };
54 
55 int btp_bap_broadcast_init(void);
56 struct btp_bap_broadcast_local_source *btp_bap_broadcast_local_source_get(uint8_t source_id);
57 struct btp_bap_broadcast_stream *btp_bap_broadcast_stream_alloc(
58 	struct btp_bap_broadcast_local_source *source);
59 
60 uint8_t btp_bap_broadcast_source_setup(const void *cmd, uint16_t cmd_len,
61 				       void *rsp, uint16_t *rsp_len);
62 uint8_t btp_bap_broadcast_source_release(const void *cmd, uint16_t cmd_len,
63 					 void *rsp, uint16_t *rsp_len);
64 uint8_t btp_bap_broadcast_adv_start(const void *cmd, uint16_t cmd_len,
65 				    void *rsp, uint16_t *rsp_len);
66 uint8_t btp_bap_broadcast_adv_stop(const void *cmd, uint16_t cmd_len,
67 				   void *rsp, uint16_t *rsp_len);
68 uint8_t btp_bap_broadcast_source_start(const void *cmd, uint16_t cmd_len,
69 				       void *rsp, uint16_t *rsp_len);
70 uint8_t btp_bap_broadcast_source_stop(const void *cmd, uint16_t cmd_len,
71 				      void *rsp, uint16_t *rsp_len);
72 uint8_t btp_bap_broadcast_sink_setup(const void *cmd, uint16_t cmd_len,
73 				     void *rsp, uint16_t *rsp_len);
74 uint8_t btp_bap_broadcast_sink_release(const void *cmd, uint16_t cmd_len,
75 				       void *rsp, uint16_t *rsp_len);
76 uint8_t btp_bap_broadcast_scan_start(const void *cmd, uint16_t cmd_len,
77 				     void *rsp, uint16_t *rsp_len);
78 uint8_t btp_bap_broadcast_scan_stop(const void *cmd, uint16_t cmd_len,
79 				    void *rsp, uint16_t *rsp_len);
80 uint8_t btp_bap_broadcast_sink_sync(const void *cmd, uint16_t cmd_len,
81 				    void *rsp, uint16_t *rsp_len);
82 uint8_t btp_bap_broadcast_sink_stop(const void *cmd, uint16_t cmd_len,
83 				    void *rsp, uint16_t *rsp_len);
84 uint8_t btp_bap_broadcast_sink_bis_sync(const void *cmd, uint16_t cmd_len,
85 					void *rsp, uint16_t *rsp_len);
86 uint8_t btp_bap_broadcast_discover_scan_delegators(const void *cmd, uint16_t cmd_len,
87 						   void *rsp, uint16_t *rsp_len);
88 uint8_t btp_bap_broadcast_assistant_scan_start(const void *cmd, uint16_t cmd_len,
89 					       void *rsp, uint16_t *rsp_len);
90 uint8_t btp_bap_broadcast_assistant_scan_stop(const void *cmd, uint16_t cmd_len,
91 					      void *rsp, uint16_t *rsp_len);
92 uint8_t btp_bap_broadcast_assistant_add_src(const void *cmd, uint16_t cmd_len,
93 					    void *rsp, uint16_t *rsp_len);
94 uint8_t btp_bap_broadcast_assistant_remove_src(const void *cmd, uint16_t cmd_len,
95 					       void *rsp, uint16_t *rsp_len);
96 uint8_t btp_bap_broadcast_assistant_modify_src(const void *cmd, uint16_t cmd_len,
97 					       void *rsp, uint16_t *rsp_len);
98 uint8_t btp_bap_broadcast_assistant_set_broadcast_code(const void *cmd, uint16_t cmd_len,
99 						       void *rsp, uint16_t *rsp_len);
100 uint8_t btp_bap_broadcast_assistant_send_past(const void *cmd, uint16_t cmd_len,
101 					      void *rsp, uint16_t *rsp_len);
102