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 #define BTSTACK_FILE__ "avdtp_sink.c" 39 40 #include <stdint.h> 41 #include <string.h> 42 43 #include "bluetooth_psm.h" 44 #include "bluetooth_sdp.h" 45 #include "btstack_debug.h" 46 #include "btstack_event.h" 47 #include "l2cap.h" 48 49 #include "classic/avdtp.h" 50 #include "classic/avdtp_acceptor.h" 51 #include "classic/avdtp_initiator.h" 52 #include "classic/avdtp_sink.h" 53 #include "classic/avdtp_util.h" 54 55 static avdtp_context_t * avdtp_sink_context; 56 57 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 58 59 void avdtp_sink_register_media_transport_category(uint8_t seid){ 60 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_for_seid(seid, avdtp_sink_context); 61 avdtp_register_media_transport_category(stream_endpoint); 62 } 63 64 void avdtp_sink_register_reporting_category(uint8_t seid){ 65 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_for_seid(seid, avdtp_sink_context); 66 avdtp_register_reporting_category(stream_endpoint); 67 } 68 69 void avdtp_sink_register_delay_reporting_category(uint8_t seid){ 70 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_for_seid(seid, avdtp_sink_context); 71 avdtp_register_delay_reporting_category(stream_endpoint); 72 } 73 74 void avdtp_sink_register_recovery_category(uint8_t seid, uint8_t maximum_recovery_window_size, uint8_t maximum_number_media_packets){ 75 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_for_seid(seid, avdtp_sink_context); 76 avdtp_register_recovery_category(stream_endpoint, maximum_recovery_window_size, maximum_number_media_packets); 77 } 78 79 void avdtp_sink_register_content_protection_category(uint8_t seid, uint16_t cp_type, const uint8_t * cp_type_value, uint8_t cp_type_value_len){ 80 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_for_seid(seid, avdtp_sink_context); 81 avdtp_register_content_protection_category(stream_endpoint, cp_type, cp_type_value, cp_type_value_len); 82 } 83 84 void avdtp_sink_register_header_compression_category(uint8_t seid, uint8_t back_ch, uint8_t media, uint8_t recovery){ 85 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_for_seid(seid, avdtp_sink_context); 86 avdtp_register_header_compression_category(stream_endpoint, back_ch, media, recovery); 87 } 88 89 void avdtp_sink_register_media_codec_category(uint8_t seid, 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){ 90 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_for_seid(seid, avdtp_sink_context); 91 avdtp_register_media_codec_category(stream_endpoint, media_type, media_codec_type, media_codec_info, media_codec_info_len); 92 } 93 94 void avdtp_sink_register_multiplexing_category(uint8_t seid, uint8_t fragmentation){ 95 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_for_seid(seid, avdtp_sink_context); 96 avdtp_register_multiplexing_category(stream_endpoint, fragmentation); 97 } 98 99 // // media, reporting. recovery 100 // void avdtp_sink_register_media_transport_identifier_for_multiplexing_category(uint8_t seid, uint8_t fragmentation){ 101 102 // } 103 104 105 /* END: tracking can send now requests pro l2cap cid */ 106 // TODO remove 107 108 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 109 avdtp_packet_handler(packet_type, channel, packet, size, avdtp_sink_context); 110 } 111 112 void avdtp_sink_init(avdtp_context_t * avdtp_context){ 113 if (!avdtp_context){ 114 log_error("avdtp_source_context is NULL"); 115 return; 116 } 117 avdtp_sink_context = avdtp_context; 118 avdtp_sink_context->stream_endpoints = NULL; 119 avdtp_sink_context->connections = NULL; 120 avdtp_sink_context->stream_endpoints_id_counter = 0; 121 avdtp_sink_context->packet_handler = packet_handler; 122 123 l2cap_register_service(&packet_handler, BLUETOOTH_PSM_AVDTP, 0xffff, LEVEL_2); 124 } 125 126 avdtp_stream_endpoint_t * avdtp_sink_create_stream_endpoint(avdtp_sep_type_t sep_type, avdtp_media_type_t media_type){ 127 return avdtp_create_stream_endpoint(sep_type, media_type, avdtp_sink_context); 128 } 129 130 void avdtp_sink_register_media_handler(void (*callback)(uint8_t local_seid, uint8_t *packet, uint16_t size)){ 131 if (callback == NULL){ 132 log_error("avdtp_sink_register_media_handler called with NULL callback"); 133 return; 134 } 135 avdtp_sink_context->handle_media_data = callback; 136 } 137 138 void avdtp_sink_register_packet_handler(btstack_packet_handler_t callback){ 139 if (callback == NULL){ 140 log_error("avdtp_sink_register_packet_handler called with NULL callback"); 141 return; 142 } 143 avdtp_sink_context->avdtp_callback = callback; 144 } 145 146 uint8_t avdtp_sink_connect(bd_addr_t remote, uint16_t * avdtp_cid){ 147 return avdtp_connect(remote, AVDTP_SOURCE, avdtp_sink_context, avdtp_cid); 148 } 149 150 uint8_t avdtp_sink_disconnect(uint16_t avdtp_cid){ 151 return avdtp_disconnect(avdtp_cid, avdtp_sink_context); 152 } 153 154 uint8_t avdtp_sink_open_stream(uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid){ 155 return avdtp_open_stream(avdtp_cid, local_seid, remote_seid, avdtp_sink_context); 156 } 157 158 uint8_t avdtp_sink_start_stream(uint16_t avdtp_cid, uint8_t local_seid){ 159 return avdtp_start_stream(avdtp_cid, local_seid, avdtp_sink_context); 160 } 161 162 uint8_t avdtp_sink_stop_stream(uint16_t avdtp_cid, uint8_t local_seid){ 163 return avdtp_stop_stream(avdtp_cid, local_seid, avdtp_sink_context); 164 } 165 166 uint8_t avdtp_sink_abort_stream(uint16_t avdtp_cid, uint8_t local_seid){ 167 return avdtp_abort_stream(avdtp_cid, local_seid, avdtp_sink_context); 168 } 169 170 uint8_t avdtp_sink_suspend(uint16_t avdtp_cid, uint8_t local_seid){ 171 return avdtp_suspend_stream(avdtp_cid, local_seid, avdtp_sink_context); 172 } 173 174 uint8_t avdtp_sink_discover_stream_endpoints(uint16_t avdtp_cid){ 175 return avdtp_discover_stream_endpoints(avdtp_cid, avdtp_sink_context); 176 } 177 178 uint8_t avdtp_sink_get_capabilities(uint16_t avdtp_cid, uint8_t remote_seid){ 179 return avdtp_get_capabilities(avdtp_cid, remote_seid, avdtp_sink_context); 180 } 181 182 uint8_t avdtp_sink_get_all_capabilities(uint16_t avdtp_cid, uint8_t remote_seid){ 183 return avdtp_get_all_capabilities(avdtp_cid, remote_seid, avdtp_sink_context); 184 } 185 186 uint8_t avdtp_sink_get_configuration(uint16_t avdtp_cid, uint8_t remote_seid){ 187 return avdtp_get_configuration(avdtp_cid, remote_seid, avdtp_sink_context); 188 } 189 190 uint8_t avdtp_sink_set_configuration(uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, uint16_t configured_services_bitmap, avdtp_capabilities_t configuration){ 191 return avdtp_set_configuration(avdtp_cid, local_seid, remote_seid, configured_services_bitmap, configuration, avdtp_sink_context); 192 } 193 194 uint8_t avdtp_sink_reconfigure(uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, uint16_t configured_services_bitmap, avdtp_capabilities_t configuration){ 195 return avdtp_reconfigure(avdtp_cid, local_seid, remote_seid, configured_services_bitmap, configuration, avdtp_sink_context); 196 } 197 198 uint8_t avdtp_sink_delay_report(uint16_t avdtp_cid, uint8_t local_seid, uint16_t delay_100us){ 199 avdtp_connection_t * connection = avdtp_connection_for_avdtp_cid(avdtp_cid, avdtp_sink_context); 200 if (!connection){ 201 log_error("delay_report: no connection for signaling cid 0x%02x found", avdtp_cid); 202 return AVDTP_CONNECTION_DOES_NOT_EXIST; 203 } 204 205 if (connection->state != AVDTP_SIGNALING_CONNECTION_OPENED || 206 connection->initiator_connection_state != AVDTP_SIGNALING_CONNECTION_INITIATOR_IDLE) { 207 log_error("delay_report: connection in wrong state, state %d, initiator state %d", connection->state, connection->initiator_connection_state); 208 return AVDTP_CONNECTION_IN_WRONG_STATE; 209 } 210 211 avdtp_stream_endpoint_t * stream_endpoint = avdtp_stream_endpoint_with_seid(local_seid, avdtp_sink_context); 212 if (!stream_endpoint) { 213 log_error("delay_report: no stream_endpoint with seid %d found", local_seid); 214 return AVDTP_SEID_DOES_NOT_EXIST; 215 } 216 217 if (stream_endpoint->state < AVDTP_STREAM_ENDPOINT_CONFIGURED){ 218 log_error("Stream endpoint seid %d in wrong state %d", local_seid, stream_endpoint->state); 219 return AVDTP_STREAM_ENDPOINT_IN_WRONG_STATE; 220 } 221 222 connection->initiator_transaction_label++; 223 connection->initiator_connection_state = AVDTP_SIGNALING_CONNECTION_INITIATOR_W2_SEND_DELAY_REPORT; 224 connection->delay_ms = delay_100us; 225 connection->local_seid = local_seid; 226 connection->remote_seid = stream_endpoint->remote_sep.seid; 227 avdtp_request_can_send_now_initiator(connection, connection->l2cap_signaling_cid); 228 return ERROR_CODE_SUCCESS; 229 } 230 231