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1 1 : /** @file
2 : * @brief Audio/Video Distribution Transport Protocol header.
3 : */
4 :
5 : /*
6 : * Copyright (c) 2015-2016 Intel Corporation
7 : * Copyright 2024 NXP
8 : *
9 : * SPDX-License-Identifier: Apache-2.0
10 : */
11 : #ifndef ZEPHYR_INCLUDE_BLUETOOTH_AVDTP_H_
12 : #define ZEPHYR_INCLUDE_BLUETOOTH_AVDTP_H_
13 :
14 : #ifdef __cplusplus
15 : extern "C" {
16 : #endif
17 :
18 1 : #define AVDTP_VERSION_1_3 0x0103 /**< AVDTP version 1.3 value */
19 :
20 1 : #define AVDTP_VERSION AVDTP_VERSION_1_3 /**< AVDTP version used by Zephyr */
21 :
22 : /**
23 : * @brief AVDTP error code
24 : */
25 1 : enum bt_avdtp_err_code {
26 : /** The response is success, it is not from avdtp spec. */
27 : BT_AVDTP_SUCCESS = 0x00,
28 : /** The request is time out without response, it is not from avdtp spec. */
29 : BT_AVDTP_TIME_OUT = 0xFF,
30 : /** The request packet header format error */
31 : BT_AVDTP_BAD_HEADER_FORMAT = 0x01,
32 : /** The request packet length is not match the assumed length */
33 : BT_AVDTP_BAD_LENGTH = 0x11,
34 : /** The requested command indicates an invalid ACP SEID (not addressable) */
35 : BT_AVDTP_BAD_ACP_SEID = 0x12,
36 : /** The SEP is in use */
37 : BT_AVDTP_SEP_IN_USE = 0x13,
38 : /** The SEP is not in use */
39 : BT_AVDTP_SEP_NOT_IN_USE = 0x14,
40 : /** The value of Service Category in the request packet is not defined in AVDTP */
41 : BT_AVDTP_BAD_SERV_CATEGORY = 0x17,
42 : /** The requested command has an incorrect payload format */
43 : BT_AVDTP_BAD_PAYLOAD_FORMAT = 0x18,
44 : /** The requested command is not supported by the device */
45 : BT_AVDTP_NOT_SUPPORTED_COMMAND = 0x19,
46 : /** The reconfigure command is an attempt to reconfigure a transport service codec_cap
47 : * of the SEP. Reconfigure is only permitted for application service codec_cap
48 : */
49 : BT_AVDTP_INVALID_CAPABILITIES = 0x1A,
50 : /** The requested Recovery Type is not defined in AVDTP */
51 : BT_AVDTP_BAD_RECOVERY_TYPE = 0x22,
52 : /** The format of Media Transport Capability is not correct */
53 : BT_AVDTP_BAD_MEDIA_TRANSPORT_FORMAT = 0x23,
54 : /** The format of Recovery Service Capability is not correct */
55 : BT_AVDTP_BAD_RECOVERY_FORMAT = 0x25,
56 : /** The format of Header Compression Service Capability is not correct */
57 : BT_AVDTP_BAD_ROHC_FORMAT = 0x26,
58 : /** The format of Content Protection Service Capability is not correct */
59 : BT_AVDTP_BAD_CP_FORMAT = 0x27,
60 : /** The format of Multiplexing Service Capability is not correct */
61 : BT_AVDTP_BAD_MULTIPLEXING_FORMAT = 0x28,
62 : /** Configuration not supported */
63 : BT_AVDTP_UNSUPPORTED_CONFIGURAION = 0x29,
64 : /** Indicates that the ACP state machine is in an invalid state in order to process the
65 : * signal. This also includes the situation when an INT receives a request for the
66 : * same command that it is currently expecting a response
67 : */
68 : BT_AVDTP_BAD_STATE = 0x31,
69 : };
70 :
71 : /** @brief Stream End Point Type */
72 1 : enum bt_avdtp_sep_type {
73 : /** Source Role */
74 : BT_AVDTP_SOURCE = 0,
75 : /** Sink Role */
76 : BT_AVDTP_SINK = 1
77 : };
78 :
79 : /** @brief Stream End Point Media Type */
80 1 : enum bt_avdtp_media_type {
81 : /** Audio Media Type */
82 : BT_AVDTP_AUDIO = 0x00,
83 : /** Video Media Type */
84 : BT_AVDTP_VIDEO = 0x01,
85 : /** Multimedia Media Type */
86 : BT_AVDTP_MULTIMEDIA = 0x02
87 : };
88 :
89 : /** @brief AVDTP stream endpoint information.
90 : * Don't need to care endianness because it is not used for data parsing.
91 : */
92 1 : struct bt_avdtp_sep_info {
93 : /** End Point usage status */
94 1 : uint8_t inuse: 1;
95 : /** Stream End Point ID that is the identifier of the stream endpoint */
96 1 : uint8_t id: 6;
97 : /** Reserved */
98 1 : uint8_t reserved: 1;
99 : /** Stream End-point Type that indicates if the stream end-point is SNK or SRC */
100 1 : enum bt_avdtp_sep_type tsep;
101 : /** Media-type of the End Point
102 : * Only @ref BT_AVDTP_AUDIO is supported now.
103 : */
104 1 : enum bt_avdtp_media_type media_type;
105 : };
106 :
107 : /** @brief service category Type */
108 1 : enum bt_avdtp_service_category {
109 : /** Media Transport */
110 : BT_AVDTP_SERVICE_MEDIA_TRANSPORT = 0x01,
111 : /** Reporting */
112 : BT_AVDTP_SERVICE_REPORTING = 0x02,
113 : /** Recovery */
114 : BT_AVDTP_SERVICE_MEDIA_RECOVERY = 0x03,
115 : /** Content Protection */
116 : BT_AVDTP_SERVICE_CONTENT_PROTECTION = 0x04,
117 : /** Header Compression */
118 : BT_AVDTP_SERVICE_HEADER_COMPRESSION = 0x05,
119 : /** Multiplexing */
120 : BT_AVDTP_SERVICE_MULTIPLEXING = 0x06,
121 : /** Media Codec */
122 : BT_AVDTP_SERVICE_MEDIA_CODEC = 0x07,
123 : /** Delay Reporting */
124 : BT_AVDTP_SERVICE_DELAY_REPORTING = 0x08,
125 : };
126 :
127 : /** @brief service category Recovery Capabilities type*/
128 1 : enum bt_avdtp_recovery_type {
129 : /** Forbidden */
130 : BT_AVDTP_RECOVERY_TYPE_FORBIDDEN = 0x00,
131 : /** RFC2733 */
132 : BT_ADVTP_RECOVERY_TYPE_RFC2733 = 0x01,
133 : };
134 :
135 : /** @brief AVDTP Stream End Point */
136 1 : struct bt_avdtp_sep {
137 : /** Stream End Point information */
138 1 : struct bt_avdtp_sep_info sep_info;
139 : /** Media Transport Channel*/
140 1 : struct bt_l2cap_br_chan chan;
141 : /** the endpoint media data */
142 1 : void (*media_data_cb)(struct bt_avdtp_sep *sep, struct net_buf *buf);
143 : /* semaphore for lock/unlock */
144 0 : struct k_sem sem_lock;
145 : /** avdtp session */
146 1 : struct bt_avdtp *session;
147 : /** SEP state */
148 1 : uint8_t state;
149 : /* Internally used list node */
150 : sys_snode_t _node;
151 : };
152 :
153 : #ifdef __cplusplus
154 : }
155 : #endif
156 :
157 : #endif /* ZEPHYR_INCLUDE_BLUETOOTH_AVDTP_H_ */
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