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_util.c" 39 40 41 #include <stdint.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 46 #include "btstack.h" 47 #include "avdtp.h" 48 #include "avdtp_util.h" 49 50 #define MAX_MEDIA_CODEC_INFORMATION_LENGTH 100 51 52 static const char * avdtp_si_name[] = { 53 "ERROR", 54 "AVDTP_SI_DISCOVER", 55 "AVDTP_SI_GET_CAPABILITIES", 56 "AVDTP_SI_SET_CONFIGURATION", 57 "AVDTP_SI_GET_CONFIGURATION", 58 "AVDTP_SI_RECONFIGURE", 59 "AVDTP_SI_OPEN", 60 "AVDTP_SI_START", 61 "AVDTP_SI_CLOSE", 62 "AVDTP_SI_SUSPEND", 63 "AVDTP_SI_ABORT", 64 "AVDTP_SI_SECURITY_CONTROL", 65 "AVDTP_SI_GET_ALL_CAPABILITIES", 66 "AVDTP_SI_DELAY_REPORT" 67 }; 68 const char * avdtp_si2str(uint16_t index){ 69 if (index <= 0 || index > sizeof(avdtp_si_name)) return avdtp_si_name[0]; 70 return avdtp_si_name[index]; 71 } 72 73 void avdtp_reset_stream_endpoint(avdtp_stream_endpoint_t * stream_endpoint){ 74 stream_endpoint->media_con_handle = 0; 75 stream_endpoint->l2cap_media_cid = 0; 76 stream_endpoint->l2cap_reporting_cid = 0; 77 stream_endpoint->l2cap_recovery_cid = 0; 78 79 stream_endpoint->connection = NULL; 80 stream_endpoint->state = AVDTP_STREAM_ENDPOINT_IDLE; 81 stream_endpoint->acceptor_config_state = AVDTP_ACCEPTOR_STREAM_CONFIG_IDLE; 82 stream_endpoint->initiator_config_state = AVDTP_INITIATOR_STREAM_CONFIG_IDLE; 83 84 stream_endpoint->sep.in_use = 0; 85 memset(&stream_endpoint->remote_sep, 0, sizeof(avdtp_sep_t)); 86 // memset(&stream_endpoint->remote_capabilities, 0, sizeof(avdtp_capabilities_t)); 87 // memset(&stream_endpoint->remote_configuration, 0, sizeof(avdtp_capabilities_t)); 88 89 stream_endpoint->remote_capabilities_bitmap = 0; 90 stream_endpoint->remote_configuration_bitmap = 0; 91 92 stream_endpoint->media_disconnect = 0; 93 stream_endpoint->media_connect = 0; 94 stream_endpoint->start_stream = 0; 95 stream_endpoint->stop_stream = 0; 96 stream_endpoint->send_stream = 0; 97 stream_endpoint->abort_stream = 0; 98 stream_endpoint->suspend_stream = 0; 99 stream_endpoint->sequence_number = 0; 100 } 101 102 avdtp_stream_endpoint_t * avdtp_stream_endpoint_for_seid(uint16_t seid, avdtp_context_t * context){ 103 btstack_linked_list_iterator_t it; 104 btstack_linked_list_iterator_init(&it, &context->stream_endpoints); 105 while (btstack_linked_list_iterator_has_next(&it)){ 106 avdtp_stream_endpoint_t * stream_endpoint = (avdtp_stream_endpoint_t *)btstack_linked_list_iterator_next(&it); 107 if (stream_endpoint->sep.seid == seid){ 108 return stream_endpoint; 109 } 110 } 111 return NULL; 112 } 113 114 avdtp_connection_t * avdtp_connection_for_bd_addr(bd_addr_t addr, avdtp_context_t * context){ 115 btstack_linked_list_iterator_t it; 116 btstack_linked_list_iterator_init(&it, &context->connections); 117 while (btstack_linked_list_iterator_has_next(&it)){ 118 avdtp_connection_t * connection = (avdtp_connection_t *)btstack_linked_list_iterator_next(&it); 119 if (memcmp(addr, connection->remote_addr, 6) != 0) continue; 120 return connection; 121 } 122 return NULL; 123 } 124 125 avdtp_connection_t * avdtp_connection_for_avdtp_cid(uint16_t avdtp_cid, avdtp_context_t * context){ 126 btstack_linked_list_iterator_t it; 127 btstack_linked_list_iterator_init(&it, &context->connections); 128 while (btstack_linked_list_iterator_has_next(&it)){ 129 avdtp_connection_t * connection = (avdtp_connection_t *)btstack_linked_list_iterator_next(&it); 130 if (connection->avdtp_cid != avdtp_cid) continue; 131 return connection; 132 } 133 return NULL; 134 } 135 136 avdtp_connection_t * avdtp_connection_for_l2cap_signaling_cid(uint16_t l2cap_cid, avdtp_context_t * context){ 137 btstack_linked_list_iterator_t it; 138 btstack_linked_list_iterator_init(&it, &context->connections); 139 while (btstack_linked_list_iterator_has_next(&it)){ 140 avdtp_connection_t * connection = (avdtp_connection_t *)btstack_linked_list_iterator_next(&it); 141 if (connection->l2cap_signaling_cid != l2cap_cid) continue; 142 return connection; 143 } 144 return NULL; 145 } 146 147 avdtp_stream_endpoint_t * avdtp_stream_endpoint_for_l2cap_cid(uint16_t l2cap_cid, avdtp_context_t * context){ 148 btstack_linked_list_iterator_t it; 149 btstack_linked_list_iterator_init(&it, &context->stream_endpoints); 150 while (btstack_linked_list_iterator_has_next(&it)){ 151 avdtp_stream_endpoint_t * stream_endpoint = (avdtp_stream_endpoint_t *)btstack_linked_list_iterator_next(&it); 152 if (stream_endpoint->l2cap_media_cid == l2cap_cid){ 153 return stream_endpoint; 154 } 155 if (stream_endpoint->l2cap_reporting_cid == l2cap_cid){ 156 return stream_endpoint; 157 } 158 if (stream_endpoint->l2cap_recovery_cid == l2cap_cid){ 159 return stream_endpoint; 160 } 161 } 162 return NULL; 163 } 164 165 avdtp_stream_endpoint_t * avdtp_stream_endpoint_for_signaling_cid(uint16_t l2cap_cid, avdtp_context_t * context){ 166 btstack_linked_list_iterator_t it; 167 btstack_linked_list_iterator_init(&it, &context->stream_endpoints); 168 while (btstack_linked_list_iterator_has_next(&it)){ 169 avdtp_stream_endpoint_t * stream_endpoint = (avdtp_stream_endpoint_t *)btstack_linked_list_iterator_next(&it); 170 if (stream_endpoint->connection){ 171 if (stream_endpoint->connection->l2cap_signaling_cid == l2cap_cid){ 172 return stream_endpoint; 173 } 174 } 175 } 176 return NULL; 177 } 178 179 avdtp_stream_endpoint_t * avdtp_stream_endpoint_with_seid(uint8_t seid, avdtp_context_t * context){ 180 btstack_linked_list_iterator_t it; 181 btstack_linked_list_iterator_init(&it, &context->stream_endpoints); 182 while (btstack_linked_list_iterator_has_next(&it)){ 183 avdtp_stream_endpoint_t * stream_endpoint = (avdtp_stream_endpoint_t *)btstack_linked_list_iterator_next(&it); 184 if (stream_endpoint->sep.seid == seid){ 185 return stream_endpoint; 186 } 187 } 188 return NULL; 189 } 190 191 avdtp_stream_endpoint_t * avdtp_stream_endpoint_associated_with_acp_seid(uint16_t acp_seid, avdtp_context_t * context){ 192 btstack_linked_list_iterator_t it; 193 btstack_linked_list_iterator_init(&it, &context->stream_endpoints); 194 while (btstack_linked_list_iterator_has_next(&it)){ 195 avdtp_stream_endpoint_t * stream_endpoint = (avdtp_stream_endpoint_t *)btstack_linked_list_iterator_next(&it); 196 if (stream_endpoint->remote_sep.seid == acp_seid){ 197 return stream_endpoint; 198 } 199 } 200 return NULL; 201 } 202 203 int get_bit16(uint16_t bitmap, int position){ 204 return (bitmap >> position) & 1; 205 } 206 207 uint16_t store_bit16(uint16_t bitmap, int position, uint8_t value){ 208 if (value){ 209 bitmap |= 1 << position; 210 } else { 211 bitmap &= ~ (1 << position); 212 } 213 return bitmap; 214 } 215 216 int avdtp_read_signaling_header(avdtp_signaling_packet_t * signaling_header, uint8_t * packet, uint16_t size){ 217 int pos = 0; 218 if (size < 2) return pos; 219 signaling_header->transaction_label = packet[pos] >> 4; 220 signaling_header->packet_type = (avdtp_packet_type_t)((packet[pos] >> 2) & 0x03); 221 signaling_header->message_type = (avdtp_message_type_t) (packet[pos] & 0x03); 222 pos++; 223 memset(signaling_header->command, 0, sizeof(signaling_header->command)); 224 switch (signaling_header->packet_type){ 225 case AVDTP_SINGLE_PACKET: 226 signaling_header->num_packets = 0; 227 signaling_header->offset = 0; 228 signaling_header->size = 0; 229 break; 230 case AVDTP_END_PACKET: 231 signaling_header->num_packets = 0; 232 break; 233 case AVDTP_START_PACKET: 234 signaling_header->num_packets = packet[pos++]; 235 signaling_header->size = 0; 236 signaling_header->offset = 0; 237 break; 238 case AVDTP_CONTINUE_PACKET: 239 if (signaling_header->num_packets <= 0) { 240 log_info(" ERROR: wrong num fragmented packets\n"); 241 break; 242 } 243 signaling_header->num_packets--; 244 break; 245 } 246 signaling_header->signal_identifier = (avdtp_signal_identifier_t)(packet[pos++] & 0x3f); 247 return pos; 248 } 249 250 int avdtp_pack_service_capabilities(uint8_t * buffer, int size, avdtp_capabilities_t caps, avdtp_service_category_t category, uint8_t pack_all_capabilities){ 251 UNUSED(size); 252 253 int i; 254 // pos = 0 reserved for length 255 int pos = 1; 256 switch(category){ 257 case AVDTP_MEDIA_TRANSPORT: 258 case AVDTP_REPORTING: 259 break; 260 case AVDTP_DELAY_REPORTING: 261 if (!pack_all_capabilities) break; 262 break; 263 case AVDTP_RECOVERY: 264 buffer[pos++] = caps.recovery.recovery_type; // 0x01=RFC2733 265 buffer[pos++] = caps.recovery.maximum_recovery_window_size; 266 buffer[pos++] = caps.recovery.maximum_number_media_packets; 267 break; 268 case AVDTP_CONTENT_PROTECTION: 269 buffer[pos++] = caps.content_protection.cp_type_value_len + 2; 270 big_endian_store_16(buffer, pos, caps.content_protection.cp_type); 271 pos += 2; 272 memcpy(buffer+pos, caps.content_protection.cp_type_value, caps.content_protection.cp_type_value_len); 273 break; 274 case AVDTP_HEADER_COMPRESSION: 275 buffer[pos++] = (caps.header_compression.back_ch << 7) | (caps.header_compression.media << 6) | (caps.header_compression.recovery << 5); 276 break; 277 case AVDTP_MULTIPLEXING: 278 buffer[pos++] = caps.multiplexing_mode.fragmentation << 7; 279 for (i=0; i<caps.multiplexing_mode.transport_identifiers_num; i++){ 280 buffer[pos++] = caps.multiplexing_mode.transport_session_identifiers[i] << 7; 281 buffer[pos++] = caps.multiplexing_mode.tcid[i] << 7; 282 // media, reporting. recovery 283 } 284 break; 285 case AVDTP_MEDIA_CODEC: 286 buffer[pos++] = ((uint8_t)caps.media_codec.media_type) << 4; 287 buffer[pos++] = (uint8_t)caps.media_codec.media_codec_type; 288 for (i = 0; i<caps.media_codec.media_codec_information_len; i++){ 289 buffer[pos++] = caps.media_codec.media_codec_information[i]; 290 } 291 break; 292 default: 293 break; 294 } 295 buffer[0] = pos - 1; // length 296 return pos; 297 } 298 299 static int avdtp_unpack_service_capabilities_has_errors(avdtp_connection_t * connection, avdtp_service_category_t category, uint8_t cap_len){ 300 connection->error_code = 0; 301 302 if (category == AVDTP_SERVICE_CATEGORY_INVALID_0 || 303 (category == AVDTP_SERVICE_CATEGORY_INVALID_FF && connection->signaling_packet.signal_identifier == AVDTP_SI_RECONFIGURE)){ 304 log_info(" ERROR: BAD SERVICE CATEGORY %d\n", category); 305 connection->reject_service_category = category; 306 connection->error_code = BAD_SERV_CATEGORY; 307 return 1; 308 } 309 310 if (connection->signaling_packet.signal_identifier == AVDTP_SI_RECONFIGURE){ 311 if (category != AVDTP_CONTENT_PROTECTION && category != AVDTP_MEDIA_CODEC){ 312 log_info(" ERROR: REJECT CATEGORY, INVALID_CAPABILITIES\n"); 313 connection->reject_service_category = category; 314 connection->error_code = INVALID_CAPABILITIES; 315 return 1; 316 } 317 } 318 319 switch(category){ 320 case AVDTP_MEDIA_TRANSPORT: 321 if (cap_len != 0){ 322 log_info(" ERROR: REJECT CATEGORY, BAD_MEDIA_TRANSPORT\n"); 323 connection->reject_service_category = category; 324 connection->error_code = BAD_MEDIA_TRANSPORT_FORMAT; 325 return 1; 326 } 327 break; 328 case AVDTP_REPORTING: 329 case AVDTP_DELAY_REPORTING: 330 if (cap_len != 0){ 331 log_info(" ERROR: REJECT CATEGORY, BAD_LENGTH\n"); 332 connection->reject_service_category = category; 333 connection->error_code = BAD_LENGTH; 334 return 1; 335 } 336 break; 337 case AVDTP_RECOVERY: 338 if (cap_len != 3){ 339 log_info(" ERROR: REJECT CATEGORY, BAD_MEDIA_TRANSPORT\n"); 340 connection->reject_service_category = category; 341 connection->error_code = BAD_RECOVERY_FORMAT; 342 return 1; 343 } 344 break; 345 case AVDTP_CONTENT_PROTECTION: 346 if (cap_len < 2){ 347 log_info(" ERROR: REJECT CATEGORY, BAD_CP_FORMAT\n"); 348 connection->reject_service_category = category; 349 connection->error_code = BAD_CP_FORMAT; 350 return 1; 351 } 352 break; 353 case AVDTP_HEADER_COMPRESSION: 354 // TODO: find error code for bad header compression 355 if (cap_len != 1){ 356 log_info(" ERROR: REJECT CATEGORY, BAD_HEADER_COMPRESSION\n"); 357 connection->reject_service_category = category; 358 connection->error_code = BAD_RECOVERY_FORMAT; 359 return 1; 360 } 361 break; 362 case AVDTP_MULTIPLEXING: 363 break; 364 case AVDTP_MEDIA_CODEC: 365 break; 366 default: 367 break; 368 } 369 return 0; 370 } 371 372 uint16_t avdtp_unpack_service_capabilities(avdtp_connection_t * connection, avdtp_capabilities_t * caps, uint8_t * packet, uint16_t size){ 373 374 int i; 375 376 uint16_t registered_service_categories = 0; 377 uint16_t to_process = size; 378 379 while (to_process >= 2){ 380 381 avdtp_service_category_t category = (avdtp_service_category_t) packet[0]; 382 uint8_t cap_len = packet[1]; 383 packet += 2; 384 to_process -= 2; 385 386 if (cap_len > to_process){ 387 connection->reject_service_category = category; 388 connection->error_code = BAD_LENGTH; 389 return 0; 390 } 391 392 if (avdtp_unpack_service_capabilities_has_errors(connection, category, cap_len)) return 0; 393 394 int category_valid = 1; 395 396 uint8_t * data = packet; 397 uint16_t pos = 0; 398 399 switch(category){ 400 case AVDTP_RECOVERY: 401 caps->recovery.recovery_type = data[pos++]; 402 caps->recovery.maximum_recovery_window_size = data[pos++]; 403 caps->recovery.maximum_number_media_packets = data[pos++]; 404 break; 405 case AVDTP_CONTENT_PROTECTION: 406 caps->content_protection.cp_type = big_endian_read_16(data, 0); 407 caps->content_protection.cp_type_value_len = cap_len - 2; 408 // connection->reject_service_category = category; 409 // connection->error_code = UNSUPPORTED_CONFIGURATION; 410 // support for content protection goes here 411 break; 412 case AVDTP_HEADER_COMPRESSION: 413 caps->header_compression.back_ch = (data[0] >> 7) & 1; 414 caps->header_compression.media = (data[0] >> 6) & 1; 415 caps->header_compression.recovery = (data[0] >> 5) & 1; 416 break; 417 case AVDTP_MULTIPLEXING: 418 caps->multiplexing_mode.fragmentation = (data[pos++] >> 7) & 1; 419 // read [tsid, tcid] for media, reporting. recovery respectively 420 caps->multiplexing_mode.transport_identifiers_num = 3; 421 for (i=0; i<caps->multiplexing_mode.transport_identifiers_num; i++){ 422 caps->multiplexing_mode.transport_session_identifiers[i] = (data[pos++] >> 7) & 1; 423 caps->multiplexing_mode.tcid[i] = (data[pos++] >> 7) & 1; 424 } 425 break; 426 case AVDTP_MEDIA_CODEC: 427 caps->media_codec.media_type = (avdtp_media_type_t)(data[pos++] >> 4); 428 caps->media_codec.media_codec_type = (avdtp_media_codec_type_t)(data[pos++]); 429 caps->media_codec.media_codec_information_len = cap_len - 2; 430 caps->media_codec.media_codec_information = &data[pos++]; 431 break; 432 case AVDTP_MEDIA_TRANSPORT: 433 case AVDTP_REPORTING: 434 case AVDTP_DELAY_REPORTING: 435 break; 436 default: 437 category_valid = 0; 438 break; 439 } 440 441 if (category_valid) { 442 registered_service_categories = store_bit16(registered_service_categories, category, 1); 443 } 444 445 packet += cap_len; 446 to_process -= cap_len; 447 } 448 449 return registered_service_categories; 450 } 451 452 void avdtp_prepare_capabilities(avdtp_signaling_packet_t * signaling_packet, uint8_t transaction_label, uint16_t registered_service_categories, avdtp_capabilities_t capabilities, uint8_t identifier){ 453 if (signaling_packet->offset) return; 454 uint8_t pack_all_capabilities = 1; 455 signaling_packet->message_type = AVDTP_RESPONSE_ACCEPT_MSG; 456 int i; 457 458 signaling_packet->size = 0; 459 memset(signaling_packet->command, 0 , sizeof(signaling_packet->command)); 460 461 462 switch (identifier) { 463 case AVDTP_SI_GET_CAPABILITIES: 464 pack_all_capabilities = 0; 465 break; 466 case AVDTP_SI_GET_ALL_CAPABILITIES: 467 pack_all_capabilities = 1; 468 break; 469 case AVDTP_SI_SET_CONFIGURATION: 470 signaling_packet->command[signaling_packet->size++] = signaling_packet->acp_seid << 2; 471 signaling_packet->command[signaling_packet->size++] = signaling_packet->int_seid << 2; 472 signaling_packet->message_type = AVDTP_CMD_MSG; 473 break; 474 case AVDTP_SI_RECONFIGURE: 475 signaling_packet->command[signaling_packet->size++] = signaling_packet->acp_seid << 2; 476 signaling_packet->message_type = AVDTP_CMD_MSG; 477 break; 478 default: 479 log_error("avdtp_prepare_capabilities wrong identifier %d", identifier); 480 break; 481 } 482 483 for (i = 1; i < 9; i++){ 484 int registered_category = get_bit16(registered_service_categories, i); 485 if (!registered_category && (identifier == AVDTP_SI_SET_CONFIGURATION)){ 486 // TODO: introduce bitmap of mandatory categories 487 if (i == 1){ 488 registered_category = 1; 489 } 490 } 491 if (registered_category){ 492 // service category 493 signaling_packet->command[signaling_packet->size++] = i; 494 signaling_packet->size += avdtp_pack_service_capabilities(signaling_packet->command+signaling_packet->size, sizeof(signaling_packet->command)-signaling_packet->size, capabilities, (avdtp_service_category_t)i, pack_all_capabilities); 495 } 496 } 497 signaling_packet->signal_identifier = (avdtp_signal_identifier_t)identifier; 498 signaling_packet->transaction_label = transaction_label; 499 } 500 501 int avdtp_signaling_create_fragment(uint16_t cid, avdtp_signaling_packet_t * signaling_packet, uint8_t * out_buffer) { 502 int mtu = l2cap_get_remote_mtu_for_local_cid(cid); 503 int data_len = 0; 504 505 uint16_t offset = signaling_packet->offset; 506 uint16_t pos = 1; 507 508 if (offset == 0){ 509 if (signaling_packet->size <= mtu - 2){ 510 signaling_packet->packet_type = AVDTP_SINGLE_PACKET; 511 out_buffer[pos++] = signaling_packet->signal_identifier; 512 data_len = signaling_packet->size; 513 } else { 514 signaling_packet->packet_type = AVDTP_START_PACKET; 515 out_buffer[pos++] = (mtu + signaling_packet->size)/ (mtu-1); 516 out_buffer[pos++] = signaling_packet->signal_identifier; 517 data_len = mtu - 3; 518 signaling_packet->offset = data_len; 519 } 520 } else { 521 int remaining_bytes = signaling_packet->size - offset; 522 if (remaining_bytes <= mtu - 1){ 523 signaling_packet->packet_type = AVDTP_END_PACKET; 524 data_len = remaining_bytes; 525 signaling_packet->offset = 0; 526 } else{ 527 signaling_packet->packet_type = AVDTP_CONTINUE_PACKET; 528 data_len = mtu - 1; 529 signaling_packet->offset += data_len; 530 } 531 } 532 out_buffer[0] = avdtp_header(signaling_packet->transaction_label, signaling_packet->packet_type, signaling_packet->message_type); 533 memcpy(out_buffer+pos, signaling_packet->command + offset, data_len); 534 pos += data_len; 535 return pos; 536 } 537 538 539 void avdtp_signaling_emit_connection_established(btstack_packet_handler_t callback, uint16_t avdtp_cid, bd_addr_t addr, uint8_t status){ 540 if (!callback) return; 541 uint8_t event[12]; 542 int pos = 0; 543 event[pos++] = HCI_EVENT_AVDTP_META; 544 event[pos++] = sizeof(event) - 2; 545 event[pos++] = AVDTP_SUBEVENT_SIGNALING_CONNECTION_ESTABLISHED; 546 little_endian_store_16(event, pos, avdtp_cid); 547 pos += 2; 548 reverse_bd_addr(addr,&event[pos]); 549 pos += 6; 550 event[pos++] = status; 551 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 552 } 553 554 void avdtp_streaming_emit_can_send_media_packet_now(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t seid, uint16_t sequence_number){ 555 if (!callback) return; 556 uint8_t event[8]; 557 int pos = 0; 558 event[pos++] = HCI_EVENT_AVDTP_META; 559 event[pos++] = sizeof(event) - 2; 560 event[pos++] = AVDTP_SUBEVENT_STREAMING_CAN_SEND_MEDIA_PACKET_NOW; 561 little_endian_store_16(event, pos, avdtp_cid); 562 pos += 2; 563 event[pos++] = seid; 564 little_endian_store_16(event, pos, sequence_number); 565 pos += 2; 566 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 567 } 568 569 void avdtp_signaling_emit_connection_released(btstack_packet_handler_t callback, uint16_t avdtp_cid){ 570 if (!callback) return; 571 uint8_t event[5]; 572 int pos = 0; 573 event[pos++] = HCI_EVENT_AVDTP_META; 574 event[pos++] = sizeof(event) - 2; 575 event[pos++] = AVDTP_SUBEVENT_SIGNALING_CONNECTION_RELEASED; 576 little_endian_store_16(event, pos, avdtp_cid); 577 pos += 2; 578 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 579 } 580 581 void avdtp_streaming_emit_connection_released(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid){ 582 if (!callback) return; 583 uint8_t event[6]; 584 int pos = 0; 585 event[pos++] = HCI_EVENT_AVDTP_META; 586 event[pos++] = sizeof(event) - 2; 587 event[pos++] = AVDTP_SUBEVENT_STREAMING_CONNECTION_RELEASED; 588 little_endian_store_16(event, pos, avdtp_cid); 589 pos += 2; 590 event[pos++] = local_seid; 591 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 592 } 593 594 void avdtp_streaming_emit_connection_established(btstack_packet_handler_t callback, uint16_t avdtp_cid, bd_addr_t addr, uint8_t local_seid, uint8_t remote_seid, uint8_t status){ 595 if (!callback) return; 596 uint8_t event[14]; 597 int pos = 0; 598 event[pos++] = HCI_EVENT_AVDTP_META; 599 event[pos++] = sizeof(event) - 2; 600 event[pos++] = AVDTP_SUBEVENT_STREAMING_CONNECTION_ESTABLISHED; 601 little_endian_store_16(event, pos, avdtp_cid); 602 pos += 2; 603 reverse_bd_addr(addr,&event[pos]); 604 pos += 6; 605 event[pos++] = local_seid; 606 event[pos++] = remote_seid; 607 event[pos++] = status; 608 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 609 } 610 611 void avdtp_signaling_emit_sep(btstack_packet_handler_t callback, uint16_t avdtp_cid, avdtp_sep_t sep){ 612 if (!callback) return; 613 uint8_t event[9]; 614 int pos = 0; 615 event[pos++] = HCI_EVENT_AVDTP_META; 616 event[pos++] = sizeof(event) - 2; 617 event[pos++] = AVDTP_SUBEVENT_SIGNALING_SEP_FOUND; 618 little_endian_store_16(event, pos, avdtp_cid); 619 pos += 2; 620 event[pos++] = sep.seid; 621 event[pos++] = sep.in_use; 622 event[pos++] = sep.media_type; 623 event[pos++] = sep.type; 624 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 625 } 626 627 void avdtp_signaling_emit_sep_done(btstack_packet_handler_t callback, uint16_t avdtp_cid){ 628 if (!callback) return; 629 uint8_t event[5]; 630 int pos = 0; 631 event[pos++] = HCI_EVENT_AVDTP_META; 632 event[pos++] = sizeof(event) - 2; 633 event[pos++] = AVDTP_SUBEVENT_SIGNALING_SEP_DICOVERY_DONE; 634 little_endian_store_16(event, pos, avdtp_cid); 635 pos += 2; 636 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 637 } 638 639 void avdtp_signaling_emit_accept(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier){ 640 if (!callback) return; 641 uint8_t event[7]; 642 int pos = 0; 643 event[pos++] = HCI_EVENT_AVDTP_META; 644 event[pos++] = sizeof(event) - 2; 645 event[pos++] = AVDTP_SUBEVENT_SIGNALING_ACCEPT; 646 little_endian_store_16(event, pos, avdtp_cid); 647 pos += 2; 648 event[pos++] = local_seid; 649 event[pos++] = identifier; 650 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 651 } 652 653 void avdtp_signaling_emit_reject(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier){ 654 if (!callback) return; 655 uint8_t event[7]; 656 int pos = 0; 657 event[pos++] = HCI_EVENT_AVDTP_META; 658 event[pos++] = sizeof(event) - 2; 659 event[pos++] = AVDTP_SUBEVENT_SIGNALING_REJECT; 660 little_endian_store_16(event, pos, avdtp_cid); 661 pos += 2; 662 event[pos++] = local_seid; 663 event[pos++] = identifier; 664 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 665 } 666 667 void avdtp_signaling_emit_general_reject(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier){ 668 if (!callback) return; 669 uint8_t event[7]; 670 int pos = 0; 671 event[pos++] = HCI_EVENT_AVDTP_META; 672 event[pos++] = sizeof(event) - 2; 673 event[pos++] = AVDTP_SUBEVENT_SIGNALING_GENERAL_REJECT; 674 little_endian_store_16(event, pos, avdtp_cid); 675 pos += 2; 676 event[pos++] = local_seid; 677 event[pos++] = identifier; 678 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 679 } 680 681 static void avdtp_signaling_emit_media_codec_sbc_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, adtvp_media_codec_capabilities_t media_codec){ 682 if (!callback) return; 683 uint8_t event[15]; 684 int pos = 0; 685 event[pos++] = HCI_EVENT_AVDTP_META; 686 event[pos++] = sizeof(event) - 2; 687 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CAPABILITY; 688 little_endian_store_16(event, pos, avdtp_cid); 689 pos += 2; 690 event[pos++] = local_seid; 691 event[pos++] = remote_seid; 692 event[pos++] = media_codec.media_type; 693 event[pos++] = media_codec.media_codec_information[0] >> 4; 694 event[pos++] = media_codec.media_codec_information[0] & 0x0F; 695 event[pos++] = media_codec.media_codec_information[1] >> 4; 696 event[pos++] = (media_codec.media_codec_information[1] & 0x0F) >> 2; 697 event[pos++] = media_codec.media_codec_information[1] & 0x03; 698 event[pos++] = media_codec.media_codec_information[2]; 699 event[pos++] = media_codec.media_codec_information[3]; 700 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 701 } 702 703 static inline void avdtp_signaling_emit_capability(btstack_packet_handler_t callback, uint8_t capability_subevent_id, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid){ 704 if (!callback) return; 705 uint8_t event[7]; 706 int pos = 0; 707 event[pos++] = HCI_EVENT_AVDTP_META; 708 event[pos++] = sizeof(event) - 2; 709 event[pos++] = capability_subevent_id; 710 little_endian_store_16(event, pos, avdtp_cid); 711 pos += 2; 712 event[pos++] = local_seid; 713 event[pos++] = remote_seid; 714 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 715 } 716 717 static void avdtp_signaling_emit_media_transport_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid){ 718 avdtp_signaling_emit_capability(callback, AVDTP_SUBEVENT_SIGNALING_MEDIA_TRANSPORT_CAPABILITY, avdtp_cid, local_seid, remote_seid); 719 } 720 721 static void avdtp_signaling_emit_reporting_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid){ 722 avdtp_signaling_emit_capability(callback, AVDTP_SUBEVENT_SIGNALING_REPORTING_CAPABILITY, avdtp_cid, local_seid, remote_seid); 723 } 724 725 static void avdtp_signaling_emit_delay_reporting_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid){ 726 avdtp_signaling_emit_capability(callback, AVDTP_SUBEVENT_SIGNALING_DELAY_REPORTING_CAPABILITY, avdtp_cid, local_seid, remote_seid); 727 } 728 729 static void avdtp_signaling_emit_recovery_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, avdtp_recovery_capabilities_t * recovery){ 730 if (!callback) return; 731 uint8_t event[10]; 732 int pos = 0; 733 event[pos++] = HCI_EVENT_AVDTP_META; 734 event[pos++] = sizeof(event) - 2; 735 event[pos++] = AVDTP_SUBEVENT_SIGNALING_RECOVERY_CAPABILITY; 736 little_endian_store_16(event, pos, avdtp_cid); 737 pos += 2; 738 event[pos++] = local_seid; 739 event[pos++] = remote_seid; 740 event[pos++] = recovery->recovery_type; 741 event[pos++] = recovery->maximum_recovery_window_size; 742 event[pos++] = recovery->maximum_number_media_packets; 743 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 744 } 745 746 static void avdtp_signaling_emit_content_protection_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, adtvp_content_protection_t * content_protection){ 747 if (!callback) return; 748 uint8_t event[22]; 749 int pos = 0; 750 event[pos++] = HCI_EVENT_AVDTP_META; 751 event[pos++] = sizeof(event) - 2; 752 event[pos++] = AVDTP_SUBEVENT_SIGNALING_CONTENT_PROTECTION_CAPABILITY; 753 little_endian_store_16(event, pos, avdtp_cid); 754 pos += 2; 755 event[pos++] = local_seid; 756 event[pos++] = remote_seid; 757 758 little_endian_store_16(event, pos, content_protection->cp_type); 759 pos += 2; 760 little_endian_store_16(event, pos, content_protection->cp_type_value_len); 761 pos += 2; 762 763 //TODO: reserve place for value 764 if (content_protection->cp_type_value_len < 10){ 765 memcpy(event+pos, content_protection->cp_type_value, content_protection->cp_type_value_len); 766 } 767 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 768 } 769 770 771 static void avdtp_signaling_emit_header_compression_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, avdtp_header_compression_capabilities_t * header_compression){ 772 if (!callback) return; 773 uint8_t event[10]; 774 int pos = 0; 775 event[pos++] = HCI_EVENT_AVDTP_META; 776 event[pos++] = sizeof(event) - 2; 777 event[pos++] = AVDTP_SUBEVENT_SIGNALING_HEADER_COMPRESSION_CAPABILITY; 778 little_endian_store_16(event, pos, avdtp_cid); 779 pos += 2; 780 event[pos++] = local_seid; 781 event[pos++] = remote_seid; 782 event[pos++] = header_compression->back_ch; 783 event[pos++] = header_compression->media; 784 event[pos++] = header_compression->recovery; 785 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 786 } 787 788 static void avdtp_signaling_emit_content_multiplexing_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, avdtp_multiplexing_mode_capabilities_t * multiplexing_mode){ 789 if (!callback) return; 790 uint8_t event[15]; 791 int pos = 0; 792 event[pos++] = HCI_EVENT_AVDTP_META; 793 event[pos++] = sizeof(event) - 2; 794 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MULTIPLEXING_CAPABILITY; 795 little_endian_store_16(event, pos, avdtp_cid); 796 pos += 2; 797 event[pos++] = local_seid; 798 event[pos++] = remote_seid; 799 800 event[pos++] = multiplexing_mode->fragmentation; 801 event[pos++] = multiplexing_mode->transport_identifiers_num; 802 803 int i; 804 for (i = 0; i < 3; i++){ 805 event[pos++] = multiplexing_mode->transport_session_identifiers[i]; 806 } 807 for (i = 0; i < 3; i++){ 808 event[pos++] = multiplexing_mode->tcid[i]; 809 } 810 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 811 } 812 813 static void avdtp_signaling_emit_media_codec_other_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, adtvp_media_codec_capabilities_t media_codec){ 814 if (!callback) return; 815 uint8_t event[MAX_MEDIA_CODEC_INFORMATION_LENGTH + 12]; 816 int pos = 0; 817 event[pos++] = HCI_EVENT_AVDTP_META; 818 event[pos++] = sizeof(event) - 2; 819 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CAPABILITY; 820 little_endian_store_16(event, pos, avdtp_cid); 821 pos += 2; 822 event[pos++] = local_seid; 823 event[pos++] = remote_seid; 824 event[pos++] = media_codec.media_type; 825 little_endian_store_16(event, pos, media_codec.media_codec_type); 826 pos += 2; 827 little_endian_store_16(event, pos, media_codec.media_codec_information_len); 828 pos += 2; 829 memcpy(event+pos, media_codec.media_codec_information, btstack_min(media_codec.media_codec_information_len, MAX_MEDIA_CODEC_INFORMATION_LENGTH)); 830 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 831 } 832 833 static inline void avdtp_signaling_emit_media_codec_sbc(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, 834 avdtp_media_type_t media_type, const uint8_t * media_codec_information, uint8_t reconfigure){ 835 if (!callback) return; 836 uint8_t event[16+2]; 837 int pos = 0; 838 event[pos++] = HCI_EVENT_AVDTP_META; 839 event[pos++] = sizeof(event) - 2; 840 841 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION; 842 little_endian_store_16(event, pos, avdtp_cid); 843 pos += 2; 844 event[pos++] = local_seid; 845 event[pos++] = remote_seid; 846 event[pos++] = reconfigure; 847 848 uint8_t num_channels = 0; 849 uint16_t sampling_frequency = 0; 850 uint8_t subbands = 0; 851 uint8_t block_length = 0; 852 853 uint8_t sampling_frequency_bitmap = media_codec_information[0] >> 4; 854 uint8_t channel_mode_bitmap = media_codec_information[0] & 0x0F; 855 uint8_t block_length_bitmap = media_codec_information[1] >> 4; 856 uint8_t subbands_bitmap = (media_codec_information[1] & 0x0F) >> 2; 857 858 if (channel_mode_bitmap & AVDTP_SBC_MONO){ 859 num_channels = 1; 860 } 861 if ( (channel_mode_bitmap & AVDTP_SBC_JOINT_STEREO) || 862 (channel_mode_bitmap & AVDTP_SBC_STEREO) || 863 (channel_mode_bitmap & AVDTP_SBC_DUAL_CHANNEL) ){ 864 num_channels = 2; 865 } 866 867 if (sampling_frequency_bitmap & AVDTP_SBC_16000){ 868 sampling_frequency = 16000; 869 } 870 if (sampling_frequency_bitmap & AVDTP_SBC_32000){ 871 sampling_frequency = 32000; 872 } 873 if (sampling_frequency_bitmap & AVDTP_SBC_44100){ 874 sampling_frequency = 44100; 875 } 876 if (sampling_frequency_bitmap & AVDTP_SBC_48000){ 877 sampling_frequency = 48000; 878 } 879 880 if (subbands_bitmap & AVDTP_SBC_SUBBANDS_4){ 881 subbands = 4; 882 } 883 if (subbands_bitmap & AVDTP_SBC_SUBBANDS_8){ 884 subbands = 8; 885 } 886 887 if (block_length_bitmap & AVDTP_SBC_BLOCK_LENGTH_4){ 888 block_length = 4; 889 } 890 if (block_length_bitmap & AVDTP_SBC_BLOCK_LENGTH_8){ 891 block_length = 8; 892 } 893 if (block_length_bitmap & AVDTP_SBC_BLOCK_LENGTH_12){ 894 block_length = 12; 895 } 896 if (block_length_bitmap & AVDTP_SBC_BLOCK_LENGTH_16){ 897 block_length = 16; 898 } 899 900 event[pos++] = media_type; 901 little_endian_store_16(event, pos, sampling_frequency); 902 pos += 2; 903 904 event[pos++] = channel_mode_bitmap; 905 event[pos++] = num_channels; 906 event[pos++] = block_length; 907 event[pos++] = subbands; 908 event[pos++] = media_codec_information[1] & 0x03; 909 event[pos++] = media_codec_information[2]; 910 event[pos++] = media_codec_information[3]; 911 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 912 } 913 914 void avdtp_signaling_emit_media_codec_sbc_configuration(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, avdtp_media_type_t media_type, const uint8_t * media_codec_information){ 915 if (!callback) return; 916 avdtp_signaling_emit_media_codec_sbc(callback, avdtp_cid, local_seid, remote_seid, media_type, media_codec_information, 0); 917 } 918 919 void avdtp_signaling_emit_media_codec_sbc_reconfiguration(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, avdtp_media_type_t media_type, const uint8_t * media_codec_information){ 920 if (!callback) return; 921 avdtp_signaling_emit_media_codec_sbc(callback, avdtp_cid, local_seid, remote_seid, media_type, media_codec_information, 1); 922 } 923 924 925 static inline void avdtp_signaling_emit_media_codec_other(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, adtvp_media_codec_capabilities_t media_codec, uint8_t reconfigure){ 926 uint8_t event[MAX_MEDIA_CODEC_INFORMATION_LENGTH + 13]; 927 int pos = 0; 928 event[pos++] = HCI_EVENT_AVDTP_META; 929 event[pos++] = sizeof(event) - 2; 930 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION; 931 little_endian_store_16(event, pos, avdtp_cid); 932 pos += 2; 933 event[pos++] = local_seid; 934 event[pos++] = remote_seid; 935 event[pos++] = reconfigure; 936 event[pos++] = media_codec.media_type; 937 little_endian_store_16(event, pos, media_codec.media_codec_type); 938 pos += 2; 939 little_endian_store_16(event, pos, media_codec.media_codec_information_len); 940 pos += 2; 941 942 int media_codec_len = btstack_min(MAX_MEDIA_CODEC_INFORMATION_LENGTH, media_codec.media_codec_information_len); 943 memcpy(event+pos, media_codec.media_codec_information, media_codec_len); 944 945 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 946 } 947 948 static void avdtp_signaling_emit_capability_done(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid){ 949 if (!callback) return; 950 uint8_t event[7]; 951 int pos = 0; 952 event[pos++] = HCI_EVENT_AVDTP_META; 953 event[pos++] = sizeof(event) - 2; 954 event[pos++] = AVDTP_SUBEVENT_SIGNALING_CAPABILITY_DONE; 955 little_endian_store_16(event, pos, avdtp_cid); 956 pos += 2; 957 event[pos++] = local_seid; 958 event[pos++] = remote_seid; 959 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 960 } 961 962 void avdtp_signaling_emit_media_codec_other_configuration(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, adtvp_media_codec_capabilities_t media_codec){ 963 if (!callback) return; 964 avdtp_signaling_emit_media_codec_other(callback, avdtp_cid, local_seid, remote_seid, media_codec, 0); 965 } 966 967 void avdtp_signaling_emit_media_codec_other_reconfiguration(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, adtvp_media_codec_capabilities_t media_codec){ 968 if (!callback) return; 969 avdtp_signaling_emit_media_codec_other(callback, avdtp_cid, local_seid, remote_seid, media_codec, 1); 970 } 971 972 void avdtp_emit_capabilities(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, avdtp_capabilities_t * capabilities, uint16_t registered_service_categories){ 973 if (get_bit16(registered_service_categories, AVDTP_MEDIA_CODEC)){ 974 switch (capabilities->media_codec.media_codec_type){ 975 case AVDTP_CODEC_SBC: 976 avdtp_signaling_emit_media_codec_sbc_capability(callback, avdtp_cid, local_seid, remote_seid, capabilities->media_codec); 977 break; 978 default: 979 avdtp_signaling_emit_media_codec_other_capability(callback, avdtp_cid, local_seid, remote_seid, capabilities->media_codec); 980 break; 981 } 982 } 983 984 if (get_bit16(registered_service_categories, AVDTP_MEDIA_TRANSPORT)){ 985 avdtp_signaling_emit_media_transport_capability(callback, avdtp_cid, local_seid, remote_seid); 986 } 987 if (get_bit16(registered_service_categories, AVDTP_REPORTING)){ 988 avdtp_signaling_emit_reporting_capability(callback, avdtp_cid, local_seid, remote_seid); 989 } 990 if (get_bit16(registered_service_categories, AVDTP_RECOVERY)){ 991 avdtp_signaling_emit_recovery_capability(callback, avdtp_cid, local_seid, remote_seid, &capabilities->recovery); 992 } 993 if (get_bit16(registered_service_categories, AVDTP_CONTENT_PROTECTION)){ 994 avdtp_signaling_emit_content_protection_capability(callback, avdtp_cid, local_seid, remote_seid, &capabilities->content_protection); 995 } 996 if (get_bit16(registered_service_categories, AVDTP_HEADER_COMPRESSION)){ 997 avdtp_signaling_emit_header_compression_capability(callback, avdtp_cid, local_seid, remote_seid, &capabilities->header_compression); 998 } 999 if (get_bit16(registered_service_categories, AVDTP_MULTIPLEXING)){ 1000 avdtp_signaling_emit_content_multiplexing_capability(callback, avdtp_cid, local_seid, remote_seid, &capabilities->multiplexing_mode); 1001 } 1002 if (get_bit16(registered_service_categories, AVDTP_DELAY_REPORTING)){ 1003 avdtp_signaling_emit_delay_reporting_capability(callback, avdtp_cid, local_seid, remote_seid); 1004 } 1005 avdtp_signaling_emit_capability_done(callback, avdtp_cid, local_seid, remote_seid); 1006 } 1007 1008 void avdtp_emit_configuration(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid, avdtp_capabilities_t * configuration, uint16_t configured_service_categories){ 1009 if (get_bit16(configured_service_categories, AVDTP_MEDIA_CODEC)){ 1010 switch (configuration->media_codec.media_codec_type){ 1011 case AVDTP_CODEC_SBC: 1012 avdtp_signaling_emit_media_codec_sbc_configuration(callback, avdtp_cid, local_seid, remote_seid, 1013 configuration->media_codec.media_type, configuration->media_codec.media_codec_information); 1014 break; 1015 default: 1016 avdtp_signaling_emit_media_codec_other_configuration(callback, avdtp_cid, local_seid, remote_seid, configuration->media_codec); 1017 break; 1018 } 1019 } 1020 } 1021 1022 1023 uint8_t avdtp_request_can_send_now_acceptor(avdtp_connection_t * connection, uint16_t l2cap_cid){ 1024 if (!connection) return AVDTP_CONNECTION_DOES_NOT_EXIST; 1025 connection->wait_to_send_acceptor = 1; 1026 l2cap_request_can_send_now_event(l2cap_cid); 1027 return ERROR_CODE_SUCCESS; 1028 } 1029 1030 uint8_t avdtp_request_can_send_now_initiator(avdtp_connection_t * connection, uint16_t l2cap_cid){ 1031 if (!connection) return AVDTP_CONNECTION_DOES_NOT_EXIST; 1032 connection->wait_to_send_initiator = 1; 1033 l2cap_request_can_send_now_event(l2cap_cid); 1034 return ERROR_CODE_SUCCESS; 1035 } 1036 1037 uint8_t avdtp_request_can_send_now_self(avdtp_connection_t * connection, uint16_t l2cap_cid){ 1038 if (!connection) return AVDTP_CONNECTION_DOES_NOT_EXIST; 1039 connection->wait_to_send_self = 1; 1040 l2cap_request_can_send_now_event(l2cap_cid); 1041 return ERROR_CODE_SUCCESS; 1042 } 1043 1044 uint8_t avdtp_local_seid(avdtp_stream_endpoint_t * stream_endpoint){ 1045 if (!stream_endpoint) return 0; 1046 return stream_endpoint->sep.seid; 1047 1048 } 1049 1050 uint8_t avdtp_remote_seid(avdtp_stream_endpoint_t * stream_endpoint){ 1051 if (!stream_endpoint) return AVDTP_INVALID_SEP_SEID; 1052 return stream_endpoint->remote_sep.seid; 1053 } 1054 1055 void a2dp_streaming_emit_connection_established(btstack_packet_handler_t callback, uint16_t cid, bd_addr_t addr, uint8_t local_seid, uint8_t remote_seid, uint8_t status){ 1056 if (!callback) return; 1057 uint8_t event[14]; 1058 int pos = 0; 1059 event[pos++] = HCI_EVENT_A2DP_META; 1060 event[pos++] = sizeof(event) - 2; 1061 event[pos++] = A2DP_SUBEVENT_STREAM_ESTABLISHED; 1062 little_endian_store_16(event, pos, cid); 1063 pos += 2; 1064 reverse_bd_addr(addr,&event[pos]); 1065 pos += 6; 1066 event[pos++] = local_seid; 1067 event[pos++] = remote_seid; 1068 event[pos++] = status; 1069 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 1070 } 1071