xref: /btstack/src/classic/avdtp_source.c (revision f12924e0a61c0582b548a1e70cea1bd59ba21f1d)
1 /*
2  * Copyright (C) 2016 BlueKitchen GmbH
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the copyright holders nor the names of
14  *    contributors may be used to endorse or promote products derived
15  *    from this software without specific prior written permission.
16  * 4. Any redistribution, use, or modification is done solely for
17  *    personal benefit and not for any commercial purpose or for
18  *    monetary gain.
19  *
20  * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
24  * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * Please inquire about commercial licensing options at
34  * [email protected]
35  *
36  */
37 
38 
39 #include <stdint.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <unistd.h>
44 
45 #include "btstack.h"
46 #include "avdtp.h"
47 #include "avdtp_source.h"
48 
49 
50 static const char * default_avdtp_sink_service_name = "BTstack AVDTP Sink Service";
51 static const char * default_avdtp_sink_service_provider_name = "BTstack AVDTP Sink Service Provider";
52 
53 void a2dp_source_create_sdp_record(uint8_t * service,  uint32_t service_record_handle, uint16_t supported_features, const char * service_name, const char * service_provider_name){
54     uint8_t* attribute;
55     de_create_sequence(service);
56 
57     // 0x0000 "Service Record Handle"
58     de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ServiceRecordHandle);
59     de_add_number(service, DE_UINT, DE_SIZE_32, service_record_handle);
60 
61     // 0x0001 "Service Class ID List"
62     de_add_number(service,  DE_UINT, DE_SIZE_16, SDP_ServiceClassIDList);
63     attribute = de_push_sequence(service);
64     {
65         de_add_number(attribute, DE_UUID, DE_SIZE_16, AUDIO_SOURCE_GROUP);
66     }
67     de_pop_sequence(service, attribute);
68 
69     // 0x0004 "Protocol Descriptor List"
70     de_add_number(service,  DE_UINT, DE_SIZE_16, SDP_ProtocolDescriptorList);
71     attribute = de_push_sequence(service);
72     {
73         uint8_t* l2cpProtocol = de_push_sequence(attribute);
74         {
75             de_add_number(l2cpProtocol,  DE_UUID, DE_SIZE_16, SDP_L2CAPProtocol);
76             de_add_number(l2cpProtocol,  DE_UINT, DE_SIZE_16, PSM_AVDTP);
77         }
78         de_pop_sequence(attribute, l2cpProtocol);
79 
80         uint8_t* avProtocol = de_push_sequence(attribute);
81         {
82             de_add_number(avProtocol,  DE_UUID, DE_SIZE_16, PSM_AVDTP);  // avProtocol_service
83             de_add_number(avProtocol,  DE_UINT, DE_SIZE_16,  0x0103);  // version
84         }
85         de_pop_sequence(attribute, avProtocol);
86     }
87     de_pop_sequence(service, attribute);
88 
89     // 0x0005 "Public Browse Group"
90     de_add_number(service,  DE_UINT, DE_SIZE_16, SDP_BrowseGroupList); // public browse group
91     attribute = de_push_sequence(service);
92     {
93         de_add_number(attribute,  DE_UUID, DE_SIZE_16, SDP_PublicBrowseGroup);
94     }
95     de_pop_sequence(service, attribute);
96 
97     // 0x0009 "Bluetooth Profile Descriptor List"
98     de_add_number(service,  DE_UINT, DE_SIZE_16, SDP_BluetoothProfileDescriptorList);
99     attribute = de_push_sequence(service);
100     {
101         uint8_t *a2dProfile = de_push_sequence(attribute);
102         {
103             de_add_number(a2dProfile,  DE_UUID, DE_SIZE_16, ADVANCED_AUDIO_DISTRIBUTION);
104             de_add_number(a2dProfile,  DE_UINT, DE_SIZE_16, 0x0103);
105         }
106         de_pop_sequence(attribute, a2dProfile);
107     }
108     de_pop_sequence(service, attribute);
109 
110 
111     // 0x0100 "Service Name"
112     de_add_number(service,  DE_UINT, DE_SIZE_16, 0x0100);
113     if (service_name){
114         de_add_data(service,  DE_STRING, strlen(service_name), (uint8_t *) service_name);
115     } else {
116         de_add_data(service,  DE_STRING, strlen(default_avdtp_sink_service_name), (uint8_t *) default_avdtp_sink_service_name);
117     }
118 
119     // 0x0100 "Provider Name"
120     de_add_number(service,  DE_UINT, DE_SIZE_16, 0x0102);
121     if (service_provider_name){
122         de_add_data(service,  DE_STRING, strlen(service_provider_name), (uint8_t *) service_provider_name);
123     } else {
124         de_add_data(service,  DE_STRING, strlen(default_avdtp_sink_service_provider_name), (uint8_t *) default_avdtp_sink_service_provider_name);
125     }
126 
127     // 0x0311 "Supported Features"
128     de_add_number(service, DE_UINT, DE_SIZE_16, 0x0311);
129     de_add_number(service, DE_UINT, DE_SIZE_16, supported_features);
130 }
131 
132 
133 
134 
135