1 2 /* 3 * Copyright (C) 2016 BlueKitchen GmbH 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the copyright holders nor the names of 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 4. Any redistribution, use, or modification is done solely for 18 * personal benefit and not for any commercial purpose or for 19 * monetary gain. 20 * 21 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 25 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 28 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 31 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * Please inquire about commercial licensing options at 35 * [email protected] 36 * 37 */ 38 39 #define __BTSTACK_FILE__ "a2dp_source.c" 40 41 #include <stdint.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 47 #include "btstack.h" 48 #include "avdtp.h" 49 #include "avdtp_util.h" 50 #include "avdtp_source.h" 51 #include "a2dp_source.h" 52 53 static const char * default_a2dp_source_service_name = "BTstack A2DP Source Service"; 54 static const char * default_a2dp_source_service_provider_name = "BTstack A2DP Source Service Provider"; 55 static avdtp_context_t a2dp_source_context; 56 57 // static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 58 59 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){ 60 uint8_t* attribute; 61 de_create_sequence(service); 62 63 // 0x0000 "Service Record Handle" 64 de_add_number(service, DE_UINT, DE_SIZE_16, BLUETOOTH_ATTRIBUTE_SERVICE_RECORD_HANDLE); 65 de_add_number(service, DE_UINT, DE_SIZE_32, service_record_handle); 66 67 // 0x0001 "Service Class ID List" 68 de_add_number(service, DE_UINT, DE_SIZE_16, BLUETOOTH_ATTRIBUTE_SERVICE_CLASS_ID_LIST); 69 attribute = de_push_sequence(service); 70 { 71 de_add_number(attribute, DE_UUID, DE_SIZE_16, BLUETOOTH_SERVICE_CLASS_AUDIO_SOURCE); 72 } 73 de_pop_sequence(service, attribute); 74 75 // 0x0004 "Protocol Descriptor List" 76 de_add_number(service, DE_UINT, DE_SIZE_16, BLUETOOTH_ATTRIBUTE_PROTOCOL_DESCRIPTOR_LIST); 77 attribute = de_push_sequence(service); 78 { 79 uint8_t* l2cpProtocol = de_push_sequence(attribute); 80 { 81 de_add_number(l2cpProtocol, DE_UUID, DE_SIZE_16, BLUETOOTH_PROTOCOL_L2CAP); 82 de_add_number(l2cpProtocol, DE_UINT, DE_SIZE_16, BLUETOOTH_PROTOCOL_AVDTP); 83 } 84 de_pop_sequence(attribute, l2cpProtocol); 85 86 uint8_t* avProtocol = de_push_sequence(attribute); 87 { 88 de_add_number(avProtocol, DE_UUID, DE_SIZE_16, BLUETOOTH_PROTOCOL_AVDTP); // avProtocol_service 89 de_add_number(avProtocol, DE_UINT, DE_SIZE_16, 0x0103); // version 90 } 91 de_pop_sequence(attribute, avProtocol); 92 } 93 de_pop_sequence(service, attribute); 94 95 // 0x0005 "Public Browse Group" 96 de_add_number(service, DE_UINT, DE_SIZE_16, BLUETOOTH_ATTRIBUTE_BROWSE_GROUP_LIST); // public browse group 97 attribute = de_push_sequence(service); 98 { 99 de_add_number(attribute, DE_UUID, DE_SIZE_16, BLUETOOTH_ATTRIBUTE_PUBLIC_BROWSE_ROOT); 100 } 101 de_pop_sequence(service, attribute); 102 103 // 0x0009 "Bluetooth Profile Descriptor List" 104 de_add_number(service, DE_UINT, DE_SIZE_16, BLUETOOTH_ATTRIBUTE_BLUETOOTH_PROFILE_DESCRIPTOR_LIST); 105 attribute = de_push_sequence(service); 106 { 107 uint8_t *a2dProfile = de_push_sequence(attribute); 108 { 109 de_add_number(a2dProfile, DE_UUID, DE_SIZE_16, BLUETOOTH_SERVICE_CLASS_ADVANCED_AUDIO_DISTRIBUTION); 110 de_add_number(a2dProfile, DE_UINT, DE_SIZE_16, 0x0103); 111 } 112 de_pop_sequence(attribute, a2dProfile); 113 } 114 de_pop_sequence(service, attribute); 115 116 117 // 0x0100 "Service Name" 118 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0100); 119 if (service_name){ 120 de_add_data(service, DE_STRING, strlen(service_name), (uint8_t *) service_name); 121 } else { 122 de_add_data(service, DE_STRING, strlen(default_a2dp_source_service_name), (uint8_t *) default_a2dp_source_service_name); 123 } 124 125 // 0x0100 "Provider Name" 126 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0102); 127 if (service_provider_name){ 128 de_add_data(service, DE_STRING, strlen(service_provider_name), (uint8_t *) service_provider_name); 129 } else { 130 de_add_data(service, DE_STRING, strlen(default_a2dp_source_service_provider_name), (uint8_t *) default_a2dp_source_service_provider_name); 131 } 132 133 // 0x0311 "Supported Features" 134 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0311); 135 de_add_number(service, DE_UINT, DE_SIZE_16, supported_features); 136 } 137 138 // static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 139 // UNUSED(channel); 140 // UNUSED(size); 141 // UNUSED(packet_type); 142 // UNUSED(packet); 143 144 // } 145 146 void a2dp_source_register_packet_handler(btstack_packet_handler_t callback){ 147 if (callback == NULL){ 148 log_error("a2dp_source_register_packet_handler called with NULL callback"); 149 return; 150 } 151 avdtp_source_register_packet_handler(callback); 152 a2dp_source_context.a2dp_callback = callback; 153 } 154 155 void a2dp_source_init(void){ 156 avdtp_source_init(&a2dp_source_context); 157 // l2cap_register_service(&packet_handler, BLUETOOTH_PROTOCOL_AVDTP, 0xffff, LEVEL_0); 158 } 159 160 avdtp_stream_endpoint_t * a2dp_source_create_stream_endpoint(avdtp_media_type_t media_type, avdtp_media_codec_type_t media_codec_type, uint8_t * media_codec_info, uint16_t media_codec_info_len){ 161 avdtp_stream_endpoint_t * local_stream_endpoint = avdtp_source_create_stream_endpoint(AVDTP_SOURCE, media_type); 162 avdtp_source_register_media_transport_category(avdtp_stream_endpoint_seid(local_stream_endpoint)); 163 avdtp_source_register_media_codec_category(avdtp_stream_endpoint_seid(local_stream_endpoint), media_type, media_codec_type, media_codec_info, media_codec_info_len); 164 return local_stream_endpoint; 165 } 166