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 (void)memcpy(buffer + pos, caps.content_protection.cp_type_value, 273 caps.content_protection.cp_type_value_len); 274 break; 275 case AVDTP_HEADER_COMPRESSION: 276 buffer[pos++] = (caps.header_compression.back_ch << 7) | (caps.header_compression.media << 6) | (caps.header_compression.recovery << 5); 277 break; 278 case AVDTP_MULTIPLEXING: 279 buffer[pos++] = caps.multiplexing_mode.fragmentation << 7; 280 for (i=0; i<caps.multiplexing_mode.transport_identifiers_num; i++){ 281 buffer[pos++] = caps.multiplexing_mode.transport_session_identifiers[i] << 7; 282 buffer[pos++] = caps.multiplexing_mode.tcid[i] << 7; 283 // media, reporting. recovery 284 } 285 break; 286 case AVDTP_MEDIA_CODEC: 287 buffer[pos++] = ((uint8_t)caps.media_codec.media_type) << 4; 288 buffer[pos++] = (uint8_t)caps.media_codec.media_codec_type; 289 for (i = 0; i<caps.media_codec.media_codec_information_len; i++){ 290 buffer[pos++] = caps.media_codec.media_codec_information[i]; 291 } 292 break; 293 default: 294 break; 295 } 296 buffer[0] = pos - 1; // length 297 return pos; 298 } 299 300 static int avdtp_unpack_service_capabilities_has_errors(avdtp_connection_t * connection, avdtp_service_category_t category, uint8_t cap_len){ 301 connection->error_code = 0; 302 303 if ((category == AVDTP_SERVICE_CATEGORY_INVALID_0) || 304 ((category == AVDTP_SERVICE_CATEGORY_INVALID_FF) && (connection->signaling_packet.signal_identifier == AVDTP_SI_RECONFIGURE))){ 305 log_info(" ERROR: BAD SERVICE CATEGORY %d\n", category); 306 connection->reject_service_category = category; 307 connection->error_code = BAD_SERV_CATEGORY; 308 return 1; 309 } 310 311 if (connection->signaling_packet.signal_identifier == AVDTP_SI_RECONFIGURE){ 312 if ( (category != AVDTP_CONTENT_PROTECTION) && (category != AVDTP_MEDIA_CODEC)){ 313 log_info(" ERROR: REJECT CATEGORY, INVALID_CAPABILITIES\n"); 314 connection->reject_service_category = category; 315 connection->error_code = INVALID_CAPABILITIES; 316 return 1; 317 } 318 } 319 320 switch(category){ 321 case AVDTP_MEDIA_TRANSPORT: 322 if (cap_len != 0){ 323 log_info(" ERROR: REJECT CATEGORY, BAD_MEDIA_TRANSPORT\n"); 324 connection->reject_service_category = category; 325 connection->error_code = BAD_MEDIA_TRANSPORT_FORMAT; 326 return 1; 327 } 328 break; 329 case AVDTP_REPORTING: 330 case AVDTP_DELAY_REPORTING: 331 if (cap_len != 0){ 332 log_info(" ERROR: REJECT CATEGORY, BAD_LENGTH\n"); 333 connection->reject_service_category = category; 334 connection->error_code = BAD_LENGTH; 335 return 1; 336 } 337 break; 338 case AVDTP_RECOVERY: 339 if (cap_len != 3){ 340 log_info(" ERROR: REJECT CATEGORY, BAD_MEDIA_TRANSPORT\n"); 341 connection->reject_service_category = category; 342 connection->error_code = BAD_RECOVERY_FORMAT; 343 return 1; 344 } 345 break; 346 case AVDTP_CONTENT_PROTECTION: 347 if (cap_len < 2){ 348 log_info(" ERROR: REJECT CATEGORY, BAD_CP_FORMAT\n"); 349 connection->reject_service_category = category; 350 connection->error_code = BAD_CP_FORMAT; 351 return 1; 352 } 353 break; 354 case AVDTP_HEADER_COMPRESSION: 355 // TODO: find error code for bad header compression 356 if (cap_len != 1){ 357 log_info(" ERROR: REJECT CATEGORY, BAD_HEADER_COMPRESSION\n"); 358 connection->reject_service_category = category; 359 connection->error_code = BAD_RECOVERY_FORMAT; 360 return 1; 361 } 362 break; 363 case AVDTP_MULTIPLEXING: 364 break; 365 case AVDTP_MEDIA_CODEC: 366 break; 367 default: 368 break; 369 } 370 return 0; 371 } 372 373 uint16_t avdtp_unpack_service_capabilities(avdtp_connection_t * connection, avdtp_capabilities_t * caps, uint8_t * packet, uint16_t size){ 374 375 int i; 376 377 uint16_t registered_service_categories = 0; 378 uint16_t to_process = size; 379 380 while (to_process >= 2){ 381 382 avdtp_service_category_t category = (avdtp_service_category_t) packet[0]; 383 uint8_t cap_len = packet[1]; 384 packet += 2; 385 to_process -= 2; 386 387 if (cap_len > to_process){ 388 connection->reject_service_category = category; 389 connection->error_code = BAD_LENGTH; 390 return 0; 391 } 392 393 if (avdtp_unpack_service_capabilities_has_errors(connection, category, cap_len)) return 0; 394 395 int category_valid = 1; 396 397 uint8_t * data = packet; 398 uint16_t pos = 0; 399 400 switch(category){ 401 case AVDTP_RECOVERY: 402 caps->recovery.recovery_type = data[pos++]; 403 caps->recovery.maximum_recovery_window_size = data[pos++]; 404 caps->recovery.maximum_number_media_packets = data[pos++]; 405 break; 406 case AVDTP_CONTENT_PROTECTION: 407 caps->content_protection.cp_type = big_endian_read_16(data, 0); 408 caps->content_protection.cp_type_value_len = cap_len - 2; 409 // connection->reject_service_category = category; 410 // connection->error_code = UNSUPPORTED_CONFIGURATION; 411 // support for content protection goes here 412 break; 413 case AVDTP_HEADER_COMPRESSION: 414 caps->header_compression.back_ch = (data[0] >> 7) & 1; 415 caps->header_compression.media = (data[0] >> 6) & 1; 416 caps->header_compression.recovery = (data[0] >> 5) & 1; 417 break; 418 case AVDTP_MULTIPLEXING: 419 caps->multiplexing_mode.fragmentation = (data[pos++] >> 7) & 1; 420 // read [tsid, tcid] for media, reporting. recovery respectively 421 caps->multiplexing_mode.transport_identifiers_num = 3; 422 for (i=0; i<caps->multiplexing_mode.transport_identifiers_num; i++){ 423 caps->multiplexing_mode.transport_session_identifiers[i] = (data[pos++] >> 7) & 1; 424 caps->multiplexing_mode.tcid[i] = (data[pos++] >> 7) & 1; 425 } 426 break; 427 case AVDTP_MEDIA_CODEC: 428 caps->media_codec.media_type = (avdtp_media_type_t)(data[pos++] >> 4); 429 caps->media_codec.media_codec_type = (avdtp_media_codec_type_t)(data[pos++]); 430 caps->media_codec.media_codec_information_len = cap_len - 2; 431 caps->media_codec.media_codec_information = &data[pos++]; 432 break; 433 case AVDTP_MEDIA_TRANSPORT: 434 case AVDTP_REPORTING: 435 case AVDTP_DELAY_REPORTING: 436 break; 437 default: 438 category_valid = 0; 439 break; 440 } 441 442 if (category_valid) { 443 registered_service_categories = store_bit16(registered_service_categories, category, 1); 444 } 445 446 packet += cap_len; 447 to_process -= cap_len; 448 } 449 450 return registered_service_categories; 451 } 452 453 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){ 454 if (signaling_packet->offset) return; 455 uint8_t pack_all_capabilities = 1; 456 signaling_packet->message_type = AVDTP_RESPONSE_ACCEPT_MSG; 457 int i; 458 459 signaling_packet->size = 0; 460 memset(signaling_packet->command, 0 , sizeof(signaling_packet->command)); 461 462 463 switch (identifier) { 464 case AVDTP_SI_GET_CAPABILITIES: 465 pack_all_capabilities = 0; 466 break; 467 case AVDTP_SI_GET_ALL_CAPABILITIES: 468 pack_all_capabilities = 1; 469 break; 470 case AVDTP_SI_SET_CONFIGURATION: 471 signaling_packet->command[signaling_packet->size++] = signaling_packet->acp_seid << 2; 472 signaling_packet->command[signaling_packet->size++] = signaling_packet->int_seid << 2; 473 signaling_packet->message_type = AVDTP_CMD_MSG; 474 break; 475 case AVDTP_SI_RECONFIGURE: 476 signaling_packet->command[signaling_packet->size++] = signaling_packet->acp_seid << 2; 477 signaling_packet->message_type = AVDTP_CMD_MSG; 478 break; 479 default: 480 log_error("avdtp_prepare_capabilities wrong identifier %d", identifier); 481 break; 482 } 483 484 for (i = 1; i < 9; i++){ 485 int registered_category = get_bit16(registered_service_categories, i); 486 if (!registered_category && (identifier == AVDTP_SI_SET_CONFIGURATION)){ 487 // TODO: introduce bitmap of mandatory categories 488 if (i == 1){ 489 registered_category = 1; 490 } 491 } 492 if (registered_category){ 493 // service category 494 signaling_packet->command[signaling_packet->size++] = i; 495 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); 496 } 497 } 498 signaling_packet->signal_identifier = (avdtp_signal_identifier_t)identifier; 499 signaling_packet->transaction_label = transaction_label; 500 } 501 502 int avdtp_signaling_create_fragment(uint16_t cid, avdtp_signaling_packet_t * signaling_packet, uint8_t * out_buffer) { 503 int mtu = l2cap_get_remote_mtu_for_local_cid(cid); 504 int data_len = 0; 505 506 uint16_t offset = signaling_packet->offset; 507 uint16_t pos = 1; 508 509 if (offset == 0){ 510 if (signaling_packet->size <= (mtu - 2)){ 511 signaling_packet->packet_type = AVDTP_SINGLE_PACKET; 512 out_buffer[pos++] = signaling_packet->signal_identifier; 513 data_len = signaling_packet->size; 514 } else { 515 signaling_packet->packet_type = AVDTP_START_PACKET; 516 out_buffer[pos++] = (mtu + signaling_packet->size)/ (mtu-1); 517 out_buffer[pos++] = signaling_packet->signal_identifier; 518 data_len = mtu - 3; 519 signaling_packet->offset = data_len; 520 } 521 } else { 522 int remaining_bytes = signaling_packet->size - offset; 523 if (remaining_bytes <= (mtu - 1)){ 524 signaling_packet->packet_type = AVDTP_END_PACKET; 525 data_len = remaining_bytes; 526 signaling_packet->offset = 0; 527 } else{ 528 signaling_packet->packet_type = AVDTP_CONTINUE_PACKET; 529 data_len = mtu - 1; 530 signaling_packet->offset += data_len; 531 } 532 } 533 out_buffer[0] = avdtp_header(signaling_packet->transaction_label, signaling_packet->packet_type, signaling_packet->message_type); 534 (void)memcpy(out_buffer + pos, signaling_packet->command + offset, 535 data_len); 536 pos += data_len; 537 return pos; 538 } 539 540 541 void avdtp_signaling_emit_connection_established(btstack_packet_handler_t callback, uint16_t avdtp_cid, bd_addr_t addr, uint8_t status){ 542 if (!callback) return; 543 uint8_t event[12]; 544 int pos = 0; 545 event[pos++] = HCI_EVENT_AVDTP_META; 546 event[pos++] = sizeof(event) - 2; 547 event[pos++] = AVDTP_SUBEVENT_SIGNALING_CONNECTION_ESTABLISHED; 548 little_endian_store_16(event, pos, avdtp_cid); 549 pos += 2; 550 reverse_bd_addr(addr,&event[pos]); 551 pos += 6; 552 event[pos++] = status; 553 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 554 } 555 556 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){ 557 if (!callback) return; 558 uint8_t event[8]; 559 int pos = 0; 560 event[pos++] = HCI_EVENT_AVDTP_META; 561 event[pos++] = sizeof(event) - 2; 562 event[pos++] = AVDTP_SUBEVENT_STREAMING_CAN_SEND_MEDIA_PACKET_NOW; 563 little_endian_store_16(event, pos, avdtp_cid); 564 pos += 2; 565 event[pos++] = seid; 566 little_endian_store_16(event, pos, sequence_number); 567 pos += 2; 568 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 569 } 570 571 void avdtp_signaling_emit_connection_released(btstack_packet_handler_t callback, uint16_t avdtp_cid){ 572 if (!callback) return; 573 uint8_t event[5]; 574 int pos = 0; 575 event[pos++] = HCI_EVENT_AVDTP_META; 576 event[pos++] = sizeof(event) - 2; 577 event[pos++] = AVDTP_SUBEVENT_SIGNALING_CONNECTION_RELEASED; 578 little_endian_store_16(event, pos, avdtp_cid); 579 pos += 2; 580 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 581 } 582 583 void avdtp_streaming_emit_connection_released(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid){ 584 if (!callback) return; 585 uint8_t event[6]; 586 int pos = 0; 587 event[pos++] = HCI_EVENT_AVDTP_META; 588 event[pos++] = sizeof(event) - 2; 589 event[pos++] = AVDTP_SUBEVENT_STREAMING_CONNECTION_RELEASED; 590 little_endian_store_16(event, pos, avdtp_cid); 591 pos += 2; 592 event[pos++] = local_seid; 593 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 594 } 595 596 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){ 597 if (!callback) return; 598 uint8_t event[14]; 599 int pos = 0; 600 event[pos++] = HCI_EVENT_AVDTP_META; 601 event[pos++] = sizeof(event) - 2; 602 event[pos++] = AVDTP_SUBEVENT_STREAMING_CONNECTION_ESTABLISHED; 603 little_endian_store_16(event, pos, avdtp_cid); 604 pos += 2; 605 reverse_bd_addr(addr,&event[pos]); 606 pos += 6; 607 event[pos++] = local_seid; 608 event[pos++] = remote_seid; 609 event[pos++] = status; 610 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 611 } 612 613 void avdtp_signaling_emit_sep(btstack_packet_handler_t callback, uint16_t avdtp_cid, avdtp_sep_t sep){ 614 if (!callback) return; 615 uint8_t event[9]; 616 int pos = 0; 617 event[pos++] = HCI_EVENT_AVDTP_META; 618 event[pos++] = sizeof(event) - 2; 619 event[pos++] = AVDTP_SUBEVENT_SIGNALING_SEP_FOUND; 620 little_endian_store_16(event, pos, avdtp_cid); 621 pos += 2; 622 event[pos++] = sep.seid; 623 event[pos++] = sep.in_use; 624 event[pos++] = sep.media_type; 625 event[pos++] = sep.type; 626 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 627 } 628 629 void avdtp_signaling_emit_sep_done(btstack_packet_handler_t callback, uint16_t avdtp_cid){ 630 if (!callback) return; 631 uint8_t event[5]; 632 int pos = 0; 633 event[pos++] = HCI_EVENT_AVDTP_META; 634 event[pos++] = sizeof(event) - 2; 635 event[pos++] = AVDTP_SUBEVENT_SIGNALING_SEP_DICOVERY_DONE; 636 little_endian_store_16(event, pos, avdtp_cid); 637 pos += 2; 638 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 639 } 640 641 void avdtp_signaling_emit_delay(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint16_t delay){ 642 if (!callback) return; 643 uint8_t event[8]; 644 int pos = 0; 645 event[pos++] = HCI_EVENT_AVDTP_META; 646 event[pos++] = sizeof(event) - 2; 647 event[pos++] = AVDTP_SUBEVENT_SIGNALING_DELAY_REPORT; 648 little_endian_store_16(event, pos, avdtp_cid); 649 pos += 2; 650 event[pos++] = local_seid; 651 little_endian_store_16(event, pos, delay); 652 pos += 2; 653 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 654 } 655 656 void avdtp_signaling_emit_accept(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier){ 657 if (!callback) return; 658 uint8_t event[7]; 659 int pos = 0; 660 event[pos++] = HCI_EVENT_AVDTP_META; 661 event[pos++] = sizeof(event) - 2; 662 event[pos++] = AVDTP_SUBEVENT_SIGNALING_ACCEPT; 663 little_endian_store_16(event, pos, avdtp_cid); 664 pos += 2; 665 event[pos++] = local_seid; 666 event[pos++] = identifier; 667 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 668 } 669 670 void avdtp_signaling_emit_reject(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier){ 671 if (!callback) return; 672 uint8_t event[7]; 673 int pos = 0; 674 event[pos++] = HCI_EVENT_AVDTP_META; 675 event[pos++] = sizeof(event) - 2; 676 event[pos++] = AVDTP_SUBEVENT_SIGNALING_REJECT; 677 little_endian_store_16(event, pos, avdtp_cid); 678 pos += 2; 679 event[pos++] = local_seid; 680 event[pos++] = identifier; 681 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 682 } 683 684 void avdtp_signaling_emit_general_reject(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, avdtp_signal_identifier_t identifier){ 685 if (!callback) return; 686 uint8_t event[7]; 687 int pos = 0; 688 event[pos++] = HCI_EVENT_AVDTP_META; 689 event[pos++] = sizeof(event) - 2; 690 event[pos++] = AVDTP_SUBEVENT_SIGNALING_GENERAL_REJECT; 691 little_endian_store_16(event, pos, avdtp_cid); 692 pos += 2; 693 event[pos++] = local_seid; 694 event[pos++] = identifier; 695 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 696 } 697 698 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){ 699 if (!callback) return; 700 uint8_t event[15]; 701 int pos = 0; 702 event[pos++] = HCI_EVENT_AVDTP_META; 703 event[pos++] = sizeof(event) - 2; 704 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CAPABILITY; 705 little_endian_store_16(event, pos, avdtp_cid); 706 pos += 2; 707 event[pos++] = local_seid; 708 event[pos++] = remote_seid; 709 event[pos++] = media_codec.media_type; 710 event[pos++] = media_codec.media_codec_information[0] >> 4; 711 event[pos++] = media_codec.media_codec_information[0] & 0x0F; 712 event[pos++] = media_codec.media_codec_information[1] >> 4; 713 event[pos++] = (media_codec.media_codec_information[1] & 0x0F) >> 2; 714 event[pos++] = media_codec.media_codec_information[1] & 0x03; 715 event[pos++] = media_codec.media_codec_information[2]; 716 event[pos++] = media_codec.media_codec_information[3]; 717 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 718 } 719 720 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){ 721 if (!callback) return; 722 uint8_t event[7]; 723 int pos = 0; 724 event[pos++] = HCI_EVENT_AVDTP_META; 725 event[pos++] = sizeof(event) - 2; 726 event[pos++] = capability_subevent_id; 727 little_endian_store_16(event, pos, avdtp_cid); 728 pos += 2; 729 event[pos++] = local_seid; 730 event[pos++] = remote_seid; 731 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 732 } 733 734 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){ 735 avdtp_signaling_emit_capability(callback, AVDTP_SUBEVENT_SIGNALING_MEDIA_TRANSPORT_CAPABILITY, avdtp_cid, local_seid, remote_seid); 736 } 737 738 static void avdtp_signaling_emit_reporting_capability(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid){ 739 avdtp_signaling_emit_capability(callback, AVDTP_SUBEVENT_SIGNALING_REPORTING_CAPABILITY, avdtp_cid, local_seid, remote_seid); 740 } 741 742 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){ 743 avdtp_signaling_emit_capability(callback, AVDTP_SUBEVENT_SIGNALING_DELAY_REPORTING_CAPABILITY, avdtp_cid, local_seid, remote_seid); 744 } 745 746 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){ 747 if (!callback) return; 748 uint8_t event[10]; 749 int pos = 0; 750 event[pos++] = HCI_EVENT_AVDTP_META; 751 event[pos++] = sizeof(event) - 2; 752 event[pos++] = AVDTP_SUBEVENT_SIGNALING_RECOVERY_CAPABILITY; 753 little_endian_store_16(event, pos, avdtp_cid); 754 pos += 2; 755 event[pos++] = local_seid; 756 event[pos++] = remote_seid; 757 event[pos++] = recovery->recovery_type; 758 event[pos++] = recovery->maximum_recovery_window_size; 759 event[pos++] = recovery->maximum_number_media_packets; 760 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 761 } 762 763 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){ 764 if (!callback) return; 765 uint8_t event[22]; 766 int pos = 0; 767 event[pos++] = HCI_EVENT_AVDTP_META; 768 event[pos++] = sizeof(event) - 2; 769 event[pos++] = AVDTP_SUBEVENT_SIGNALING_CONTENT_PROTECTION_CAPABILITY; 770 little_endian_store_16(event, pos, avdtp_cid); 771 pos += 2; 772 event[pos++] = local_seid; 773 event[pos++] = remote_seid; 774 775 little_endian_store_16(event, pos, content_protection->cp_type); 776 pos += 2; 777 little_endian_store_16(event, pos, content_protection->cp_type_value_len); 778 pos += 2; 779 780 //TODO: reserve place for value 781 if (content_protection->cp_type_value_len < 10){ 782 (void)memcpy(event + pos, content_protection->cp_type_value, 783 content_protection->cp_type_value_len); 784 } 785 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 786 } 787 788 789 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){ 790 if (!callback) return; 791 uint8_t event[10]; 792 int pos = 0; 793 event[pos++] = HCI_EVENT_AVDTP_META; 794 event[pos++] = sizeof(event) - 2; 795 event[pos++] = AVDTP_SUBEVENT_SIGNALING_HEADER_COMPRESSION_CAPABILITY; 796 little_endian_store_16(event, pos, avdtp_cid); 797 pos += 2; 798 event[pos++] = local_seid; 799 event[pos++] = remote_seid; 800 event[pos++] = header_compression->back_ch; 801 event[pos++] = header_compression->media; 802 event[pos++] = header_compression->recovery; 803 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 804 } 805 806 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){ 807 if (!callback) return; 808 uint8_t event[15]; 809 int pos = 0; 810 event[pos++] = HCI_EVENT_AVDTP_META; 811 event[pos++] = sizeof(event) - 2; 812 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MULTIPLEXING_CAPABILITY; 813 little_endian_store_16(event, pos, avdtp_cid); 814 pos += 2; 815 event[pos++] = local_seid; 816 event[pos++] = remote_seid; 817 818 event[pos++] = multiplexing_mode->fragmentation; 819 event[pos++] = multiplexing_mode->transport_identifiers_num; 820 821 int i; 822 for (i = 0; i < 3; i++){ 823 event[pos++] = multiplexing_mode->transport_session_identifiers[i]; 824 } 825 for (i = 0; i < 3; i++){ 826 event[pos++] = multiplexing_mode->tcid[i]; 827 } 828 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 829 } 830 831 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){ 832 if (!callback) return; 833 uint8_t event[MAX_MEDIA_CODEC_INFORMATION_LENGTH + 12]; 834 int pos = 0; 835 event[pos++] = HCI_EVENT_AVDTP_META; 836 event[pos++] = sizeof(event) - 2; 837 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CAPABILITY; 838 little_endian_store_16(event, pos, avdtp_cid); 839 pos += 2; 840 event[pos++] = local_seid; 841 event[pos++] = remote_seid; 842 event[pos++] = media_codec.media_type; 843 little_endian_store_16(event, pos, media_codec.media_codec_type); 844 pos += 2; 845 little_endian_store_16(event, pos, media_codec.media_codec_information_len); 846 pos += 2; 847 (void)memcpy(event + pos, media_codec.media_codec_information, 848 btstack_min(media_codec.media_codec_information_len, MAX_MEDIA_CODEC_INFORMATION_LENGTH)); 849 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 850 } 851 852 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, 853 avdtp_media_type_t media_type, const uint8_t * media_codec_information, uint8_t reconfigure){ 854 if (!callback) return; 855 uint8_t event[16+2]; 856 int pos = 0; 857 event[pos++] = HCI_EVENT_AVDTP_META; 858 event[pos++] = sizeof(event) - 2; 859 860 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_SBC_CONFIGURATION; 861 little_endian_store_16(event, pos, avdtp_cid); 862 pos += 2; 863 event[pos++] = local_seid; 864 event[pos++] = remote_seid; 865 event[pos++] = reconfigure; 866 867 uint8_t num_channels = 0; 868 uint16_t sampling_frequency = 0; 869 uint8_t subbands = 0; 870 uint8_t block_length = 0; 871 872 uint8_t sampling_frequency_bitmap = media_codec_information[0] >> 4; 873 uint8_t channel_mode_bitmap = media_codec_information[0] & 0x0F; 874 uint8_t block_length_bitmap = media_codec_information[1] >> 4; 875 uint8_t subbands_bitmap = (media_codec_information[1] & 0x0F) >> 2; 876 877 if (channel_mode_bitmap & AVDTP_SBC_MONO){ 878 num_channels = 1; 879 } 880 if ( (channel_mode_bitmap & AVDTP_SBC_JOINT_STEREO) || 881 (channel_mode_bitmap & AVDTP_SBC_STEREO) || 882 (channel_mode_bitmap & AVDTP_SBC_DUAL_CHANNEL) ){ 883 num_channels = 2; 884 } 885 886 if (sampling_frequency_bitmap & AVDTP_SBC_16000){ 887 sampling_frequency = 16000; 888 } 889 if (sampling_frequency_bitmap & AVDTP_SBC_32000){ 890 sampling_frequency = 32000; 891 } 892 if (sampling_frequency_bitmap & AVDTP_SBC_44100){ 893 sampling_frequency = 44100; 894 } 895 if (sampling_frequency_bitmap & AVDTP_SBC_48000){ 896 sampling_frequency = 48000; 897 } 898 899 if (subbands_bitmap & AVDTP_SBC_SUBBANDS_4){ 900 subbands = 4; 901 } 902 if (subbands_bitmap & AVDTP_SBC_SUBBANDS_8){ 903 subbands = 8; 904 } 905 906 if (block_length_bitmap & AVDTP_SBC_BLOCK_LENGTH_4){ 907 block_length = 4; 908 } 909 if (block_length_bitmap & AVDTP_SBC_BLOCK_LENGTH_8){ 910 block_length = 8; 911 } 912 if (block_length_bitmap & AVDTP_SBC_BLOCK_LENGTH_12){ 913 block_length = 12; 914 } 915 if (block_length_bitmap & AVDTP_SBC_BLOCK_LENGTH_16){ 916 block_length = 16; 917 } 918 919 event[pos++] = media_type; 920 little_endian_store_16(event, pos, sampling_frequency); 921 pos += 2; 922 923 event[pos++] = channel_mode_bitmap; 924 event[pos++] = num_channels; 925 event[pos++] = block_length; 926 event[pos++] = subbands; 927 event[pos++] = media_codec_information[1] & 0x03; 928 event[pos++] = media_codec_information[2]; 929 event[pos++] = media_codec_information[3]; 930 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 931 } 932 933 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){ 934 if (!callback) return; 935 avdtp_signaling_emit_media_codec_sbc(callback, avdtp_cid, local_seid, remote_seid, media_type, media_codec_information, 0); 936 } 937 938 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){ 939 if (!callback) return; 940 avdtp_signaling_emit_media_codec_sbc(callback, avdtp_cid, local_seid, remote_seid, media_type, media_codec_information, 1); 941 } 942 943 944 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){ 945 uint8_t event[MAX_MEDIA_CODEC_INFORMATION_LENGTH + 13]; 946 int pos = 0; 947 event[pos++] = HCI_EVENT_AVDTP_META; 948 event[pos++] = sizeof(event) - 2; 949 event[pos++] = AVDTP_SUBEVENT_SIGNALING_MEDIA_CODEC_OTHER_CONFIGURATION; 950 little_endian_store_16(event, pos, avdtp_cid); 951 pos += 2; 952 event[pos++] = local_seid; 953 event[pos++] = remote_seid; 954 event[pos++] = reconfigure; 955 event[pos++] = media_codec.media_type; 956 little_endian_store_16(event, pos, media_codec.media_codec_type); 957 pos += 2; 958 little_endian_store_16(event, pos, media_codec.media_codec_information_len); 959 pos += 2; 960 961 int media_codec_len = btstack_min(MAX_MEDIA_CODEC_INFORMATION_LENGTH, media_codec.media_codec_information_len); 962 (void)memcpy(event + pos, media_codec.media_codec_information, 963 media_codec_len); 964 965 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 966 } 967 968 static void avdtp_signaling_emit_capability_done(btstack_packet_handler_t callback, uint16_t avdtp_cid, uint8_t local_seid, uint8_t remote_seid){ 969 if (!callback) return; 970 uint8_t event[7]; 971 int pos = 0; 972 event[pos++] = HCI_EVENT_AVDTP_META; 973 event[pos++] = sizeof(event) - 2; 974 event[pos++] = AVDTP_SUBEVENT_SIGNALING_CAPABILITIES_DONE; 975 little_endian_store_16(event, pos, avdtp_cid); 976 pos += 2; 977 event[pos++] = local_seid; 978 event[pos++] = remote_seid; 979 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 980 } 981 982 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){ 983 if (!callback) return; 984 avdtp_signaling_emit_media_codec_other(callback, avdtp_cid, local_seid, remote_seid, media_codec, 0); 985 } 986 987 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){ 988 if (!callback) return; 989 avdtp_signaling_emit_media_codec_other(callback, avdtp_cid, local_seid, remote_seid, media_codec, 1); 990 } 991 992 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){ 993 if (get_bit16(registered_service_categories, AVDTP_MEDIA_CODEC)){ 994 switch (capabilities->media_codec.media_codec_type){ 995 case AVDTP_CODEC_SBC: 996 avdtp_signaling_emit_media_codec_sbc_capability(callback, avdtp_cid, local_seid, remote_seid, capabilities->media_codec); 997 break; 998 default: 999 avdtp_signaling_emit_media_codec_other_capability(callback, avdtp_cid, local_seid, remote_seid, capabilities->media_codec); 1000 break; 1001 } 1002 } 1003 1004 if (get_bit16(registered_service_categories, AVDTP_MEDIA_TRANSPORT)){ 1005 avdtp_signaling_emit_media_transport_capability(callback, avdtp_cid, local_seid, remote_seid); 1006 } 1007 if (get_bit16(registered_service_categories, AVDTP_REPORTING)){ 1008 avdtp_signaling_emit_reporting_capability(callback, avdtp_cid, local_seid, remote_seid); 1009 } 1010 if (get_bit16(registered_service_categories, AVDTP_RECOVERY)){ 1011 avdtp_signaling_emit_recovery_capability(callback, avdtp_cid, local_seid, remote_seid, &capabilities->recovery); 1012 } 1013 if (get_bit16(registered_service_categories, AVDTP_CONTENT_PROTECTION)){ 1014 avdtp_signaling_emit_content_protection_capability(callback, avdtp_cid, local_seid, remote_seid, &capabilities->content_protection); 1015 } 1016 if (get_bit16(registered_service_categories, AVDTP_HEADER_COMPRESSION)){ 1017 avdtp_signaling_emit_header_compression_capability(callback, avdtp_cid, local_seid, remote_seid, &capabilities->header_compression); 1018 } 1019 if (get_bit16(registered_service_categories, AVDTP_MULTIPLEXING)){ 1020 avdtp_signaling_emit_content_multiplexing_capability(callback, avdtp_cid, local_seid, remote_seid, &capabilities->multiplexing_mode); 1021 } 1022 if (get_bit16(registered_service_categories, AVDTP_DELAY_REPORTING)){ 1023 avdtp_signaling_emit_delay_reporting_capability(callback, avdtp_cid, local_seid, remote_seid); 1024 } 1025 avdtp_signaling_emit_capability_done(callback, avdtp_cid, local_seid, remote_seid); 1026 } 1027 1028 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){ 1029 if (get_bit16(configured_service_categories, AVDTP_MEDIA_CODEC)){ 1030 switch (configuration->media_codec.media_codec_type){ 1031 case AVDTP_CODEC_SBC: 1032 avdtp_signaling_emit_media_codec_sbc_configuration(callback, avdtp_cid, local_seid, remote_seid, 1033 configuration->media_codec.media_type, configuration->media_codec.media_codec_information); 1034 break; 1035 default: 1036 avdtp_signaling_emit_media_codec_other_configuration(callback, avdtp_cid, local_seid, remote_seid, configuration->media_codec); 1037 break; 1038 } 1039 } 1040 } 1041 1042 1043 uint8_t avdtp_request_can_send_now_acceptor(avdtp_connection_t * connection, uint16_t l2cap_cid){ 1044 if (!connection) return AVDTP_CONNECTION_DOES_NOT_EXIST; 1045 connection->wait_to_send_acceptor = 1; 1046 l2cap_request_can_send_now_event(l2cap_cid); 1047 return ERROR_CODE_SUCCESS; 1048 } 1049 1050 uint8_t avdtp_request_can_send_now_initiator(avdtp_connection_t * connection, uint16_t l2cap_cid){ 1051 if (!connection) return AVDTP_CONNECTION_DOES_NOT_EXIST; 1052 connection->wait_to_send_initiator = 1; 1053 l2cap_request_can_send_now_event(l2cap_cid); 1054 return ERROR_CODE_SUCCESS; 1055 } 1056 1057 uint8_t avdtp_request_can_send_now_self(avdtp_connection_t * connection, uint16_t l2cap_cid){ 1058 if (!connection) return AVDTP_CONNECTION_DOES_NOT_EXIST; 1059 connection->wait_to_send_self = 1; 1060 l2cap_request_can_send_now_event(l2cap_cid); 1061 return ERROR_CODE_SUCCESS; 1062 } 1063 1064 uint8_t avdtp_local_seid(avdtp_stream_endpoint_t * stream_endpoint){ 1065 if (!stream_endpoint) return 0; 1066 return stream_endpoint->sep.seid; 1067 1068 } 1069 1070 uint8_t avdtp_remote_seid(avdtp_stream_endpoint_t * stream_endpoint){ 1071 if (!stream_endpoint) return AVDTP_INVALID_SEP_SEID; 1072 return stream_endpoint->remote_sep.seid; 1073 } 1074 1075 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){ 1076 if (!callback) return; 1077 uint8_t event[14]; 1078 int pos = 0; 1079 event[pos++] = HCI_EVENT_A2DP_META; 1080 event[pos++] = sizeof(event) - 2; 1081 event[pos++] = A2DP_SUBEVENT_STREAM_ESTABLISHED; 1082 little_endian_store_16(event, pos, cid); 1083 pos += 2; 1084 reverse_bd_addr(addr,&event[pos]); 1085 pos += 6; 1086 event[pos++] = local_seid; 1087 event[pos++] = remote_seid; 1088 event[pos++] = status; 1089 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 1090 } 1091