1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 /* 39 * hfp_ag_demo.c 40 */ 41 42 // ***************************************************************************** 43 /* EXAMPLE_START(hfp_ag_demo): HFP Audio Gateway (AG) Demo 44 * 45 * @text This HFP Audio Gateway example demonstrates how to receive 46 * an output from a remote HFP Hands-Free (HF) unit, and, 47 * if HAVE_POSIX_STDIN is defined, how to control the HFP HF. 48 */ 49 // ***************************************************************************** 50 51 52 #include <stdint.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <unistd.h> 57 58 #include "btstack.h" 59 #ifdef HAVE_POSIX_STDIN 60 #include "stdin_support.h" 61 #endif 62 63 64 static int phase = 0; 65 66 // input signal: pre-computed sine wave, 160 Hz 67 static const uint8_t sine[] = { 68 0, 15, 31, 46, 61, 74, 86, 97, 107, 114, 69 120, 124, 126, 126, 124, 120, 114, 107, 97, 86, 70 74, 61, 46, 31, 15, 0, 241, 225, 210, 195, 71 182, 170, 159, 149, 142, 136, 132, 130, 130, 132, 72 136, 142, 149, 159, 170, 182, 195, 210, 225, 241, 73 }; 74 75 uint8_t hfp_service_buffer[150]; 76 const uint8_t rfcomm_channel_nr = 1; 77 const char hfp_ag_service_name[] = "BTstack HFP AG Test"; 78 79 // PTS 80 // static bd_addr_t device_addr = {0x00,0x15,0x83,0x5F,0x9D,0x46}; 81 // BT-201 82 static bd_addr_t device_addr = {0x00, 0x07, 0xB0, 0x83, 0x02, 0x5E}; 83 84 static uint8_t codecs[1] = {HFP_CODEC_CVSD}; 85 static uint16_t handle = -1; 86 static hci_con_handle_t sco_handle; 87 static int memory_1_enabled = 1; 88 89 static int ag_indicators_nr = 7; 90 static hfp_ag_indicator_t ag_indicators[] = { 91 // index, name, min range, max range, status, mandatory, enabled, status changed 92 {1, "service", 0, 1, 1, 0, 0, 0}, 93 {2, "call", 0, 1, 0, 1, 1, 0}, 94 {3, "callsetup", 0, 3, 0, 1, 1, 0}, 95 {4, "battchg", 0, 5, 3, 0, 0, 0}, 96 {5, "signal", 0, 5, 5, 0, 1, 0}, 97 {6, "roam", 0, 1, 0, 0, 1, 0}, 98 {7, "callheld", 0, 2, 0, 1, 1, 0} 99 }; 100 101 static int call_hold_services_nr = 5; 102 static const char* call_hold_services[] = {"1", "1x", "2", "2x", "3"}; 103 104 static int hf_indicators_nr = 2; 105 static hfp_generic_status_indicator_t hf_indicators[] = { 106 {1, 1}, 107 {2, 1}, 108 }; 109 110 char cmd; 111 112 // GAP INQUIRY 113 114 #define MAX_DEVICES 10 115 enum DEVICE_STATE { REMOTE_NAME_REQUEST, REMOTE_NAME_INQUIRED, REMOTE_NAME_FETCHED }; 116 struct device { 117 bd_addr_t address; 118 uint16_t clockOffset; 119 uint32_t classOfDevice; 120 uint8_t pageScanRepetitionMode; 121 uint8_t rssi; 122 enum DEVICE_STATE state; 123 }; 124 125 #define INQUIRY_INTERVAL 5 126 struct device devices[MAX_DEVICES]; 127 int deviceCount = 0; 128 129 130 enum STATE {INIT, W4_INQUIRY_MODE_COMPLETE, ACTIVE} ; 131 enum STATE state = INIT; 132 133 134 static int getDeviceIndexForAddress( bd_addr_t addr){ 135 int j; 136 for (j=0; j< deviceCount; j++){ 137 if (bd_addr_cmp(addr, devices[j].address) == 0){ 138 return j; 139 } 140 } 141 return -1; 142 } 143 144 #ifdef HAVE_POSIX_STDIN 145 static void start_scan(void){ 146 printf("Starting inquiry scan..\n"); 147 hci_send_cmd(&hci_inquiry, HCI_INQUIRY_LAP, INQUIRY_INTERVAL, 0); 148 } 149 #endif 150 151 static int has_more_remote_name_requests(void){ 152 int i; 153 for (i=0;i<deviceCount;i++) { 154 if (devices[i].state == REMOTE_NAME_REQUEST) return 1; 155 } 156 return 0; 157 } 158 159 static void do_next_remote_name_request(void){ 160 int i; 161 for (i=0;i<deviceCount;i++) { 162 // remote name request 163 if (devices[i].state == REMOTE_NAME_REQUEST){ 164 devices[i].state = REMOTE_NAME_INQUIRED; 165 printf("Get remote name of %s...\n", bd_addr_to_str(devices[i].address)); 166 hci_send_cmd(&hci_remote_name_request, devices[i].address, 167 devices[i].pageScanRepetitionMode, 0, devices[i].clockOffset | 0x8000); 168 return; 169 } 170 } 171 } 172 173 static void continue_remote_names(void){ 174 // don't get remote names for testing 175 if (has_more_remote_name_requests()){ 176 do_next_remote_name_request(); 177 return; 178 } 179 // try to find PTS 180 int i; 181 for (i=0;i<deviceCount;i++){ 182 if (memcmp(devices[i].address, device_addr, 6) == 0){ 183 printf("Inquiry scan over, successfully found PTS at index %u\nReady to connect to it.\n", i); 184 return; 185 } 186 } 187 printf("Inquiry scan over but PTS not found :(\n"); 188 } 189 190 static void inquiry_packet_handler (uint8_t packet_type, uint8_t *packet, uint16_t size){ 191 bd_addr_t addr; 192 int i; 193 int numResponses; 194 int index; 195 196 // printf("packet_handler: pt: 0x%02x, packet[0]: 0x%02x\n", packet_type, packet[0]); 197 if (packet_type != HCI_EVENT_PACKET) return; 198 199 uint8_t event = packet[0]; 200 201 switch(event){ 202 case HCI_EVENT_INQUIRY_RESULT: 203 case HCI_EVENT_INQUIRY_RESULT_WITH_RSSI:{ 204 numResponses = hci_event_inquiry_result_get_num_responses(packet); 205 int offset = 3; 206 for (i=0; i<numResponses && deviceCount < MAX_DEVICES;i++){ 207 reverse_bd_addr(&packet[offset], addr); 208 offset += 6; 209 index = getDeviceIndexForAddress(addr); 210 if (index >= 0) continue; // already in our list 211 memcpy(devices[deviceCount].address, addr, 6); 212 213 devices[deviceCount].pageScanRepetitionMode = packet[offset]; 214 offset += 1; 215 216 if (event == HCI_EVENT_INQUIRY_RESULT){ 217 offset += 2; // Reserved + Reserved 218 devices[deviceCount].classOfDevice = little_endian_read_24(packet, offset); 219 offset += 3; 220 devices[deviceCount].clockOffset = little_endian_read_16(packet, offset) & 0x7fff; 221 offset += 2; 222 devices[deviceCount].rssi = 0; 223 } else { 224 offset += 1; // Reserved 225 devices[deviceCount].classOfDevice = little_endian_read_24(packet, offset); 226 offset += 3; 227 devices[deviceCount].clockOffset = little_endian_read_16(packet, offset) & 0x7fff; 228 offset += 2; 229 devices[deviceCount].rssi = packet[offset]; 230 offset += 1; 231 } 232 devices[deviceCount].state = REMOTE_NAME_REQUEST; 233 printf("Device #%u found: %s with COD: 0x%06x, pageScan %d, clock offset 0x%04x, rssi 0x%02x\n", 234 deviceCount, bd_addr_to_str(addr), 235 devices[deviceCount].classOfDevice, devices[deviceCount].pageScanRepetitionMode, 236 devices[deviceCount].clockOffset, devices[deviceCount].rssi); 237 deviceCount++; 238 } 239 240 break; 241 } 242 case HCI_EVENT_INQUIRY_COMPLETE: 243 for (i=0;i<deviceCount;i++) { 244 // retry remote name request 245 if (devices[i].state == REMOTE_NAME_INQUIRED) 246 devices[i].state = REMOTE_NAME_REQUEST; 247 } 248 continue_remote_names(); 249 break; 250 251 case HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE: 252 reverse_bd_addr(&packet[3], addr); 253 index = getDeviceIndexForAddress(addr); 254 if (index >= 0) { 255 if (packet[2] == 0) { 256 printf("Name: '%s'\n", &packet[9]); 257 devices[index].state = REMOTE_NAME_FETCHED; 258 } else { 259 printf("Failed to get name: page timeout\n"); 260 } 261 } 262 continue_remote_names(); 263 break; 264 265 default: 266 break; 267 } 268 } 269 // GAP INQUIRY END 270 #ifdef HAVE_POSIX_STDIN 271 272 // prototypes 273 static void show_usage(void); 274 275 // Testig User Interface 276 static void show_usage(void){ 277 bd_addr_t iut_address; 278 gap_local_bd_addr(iut_address); 279 280 printf("\n--- Bluetooth HFP Audiogateway (AG) unit Test Console %s ---\n", bd_addr_to_str(iut_address)); 281 printf("---\n"); 282 283 printf("a - establish HFP connection to PTS module %s\n", bd_addr_to_str(device_addr)); 284 // printf("A - release HFP connection to PTS module\n"); 285 286 printf("b - establish AUDIO connection\n"); 287 printf("B - release AUDIO connection\n"); 288 289 printf("c - simulate incoming call from 1234567\n"); 290 printf("C - simulate call from 1234567 dropped\n"); 291 292 printf("d - report AG failure\n"); 293 294 printf("e - answer call on AG\n"); 295 printf("E - reject call on AG\n"); 296 297 printf("r - disable in-band ring tone\n"); 298 printf("R - enable in-band ring tone\n"); 299 300 printf("f - Disable cellular network\n"); 301 printf("F - Enable cellular network\n"); 302 303 printf("g - Set signal strength to 0\n"); 304 printf("G - Set signal strength to 5\n"); 305 306 printf("h - Disable roaming\n"); 307 printf("H - Enable roaming\n"); 308 309 printf("i - Set battery level to 3\n"); 310 printf("I - Set battery level to 5\n"); 311 312 printf("j - Answering call on remote side\n"); 313 314 printf("k - Clear memory #1\n"); 315 printf("K - Set memory #1\n"); 316 317 printf("l - Clear last number\n"); 318 printf("L - Set last number\n"); 319 320 printf("m - simulate incoming call from 7654321\n"); 321 // printf("M - simulate call from 7654321 dropped\n"); 322 323 printf("n - Disable Voice Regocnition\n"); 324 printf("N - Enable Voice Recognition\n"); 325 326 printf("o - Set speaker volume to 0 (minimum)\n"); 327 printf("O - Set speaker volume to 9 (default)\n"); 328 printf("p - Set speaker volume to 12 (higher)\n"); 329 printf("P - Set speaker volume to 15 (maximum)\n"); 330 331 printf("q - Set microphone gain to 0 (minimum)\n"); 332 printf("Q - Set microphone gain to 9 (default)\n"); 333 printf("s - Set microphone gain to 12 (higher)\n"); 334 printf("S - Set microphone gain to 15 (maximum)\n"); 335 336 printf("t - terminate connection\n"); 337 printf("u - join held call\n"); 338 printf("v - discover nearby HF units\n"); 339 printf("w - put incoming call on hold (Response and Hold)\n"); 340 printf("x - accept held incoming call (Response and Hold)\n"); 341 printf("X - reject held incoming call (Response and Hold)\n"); 342 343 printf("---\n"); 344 printf("Ctrl-c - exit\n"); 345 printf("---\n"); 346 } 347 348 static void stdin_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type){ 349 read(ds->fd, &cmd, 1); 350 switch (cmd){ 351 case 'a': 352 log_info("USER:\'%c\'", cmd); 353 printf("Establish HFP service level connection to PTS module %s...\n", bd_addr_to_str(device_addr)); 354 hfp_ag_establish_service_level_connection(device_addr); 355 break; 356 case 'A': 357 log_info("USER:\'%c\'", cmd); 358 printf("Release HFP service level connection.\n"); 359 hfp_ag_release_service_level_connection(device_addr); 360 break; 361 case 'Z': 362 log_info("USER:\'%c\'", cmd); 363 printf("Release HFP service level connection to %s...\n", bd_addr_to_str(device_addr)); 364 hfp_ag_release_service_level_connection(device_addr); 365 break; 366 case 'b': 367 log_info("USER:\'%c\'", cmd); 368 printf("Establish Audio connection %s...\n", bd_addr_to_str(device_addr)); 369 hfp_ag_establish_audio_connection(device_addr); 370 break; 371 case 'B': 372 log_info("USER:\'%c\'", cmd); 373 printf("Release Audio connection.\n"); 374 hfp_ag_release_audio_connection(device_addr); 375 break; 376 case 'c': 377 log_info("USER:\'%c\'", cmd); 378 printf("Simulate incoming call from 1234567\n"); 379 hfp_ag_set_clip(129, "1234567"); 380 hfp_ag_incoming_call(); 381 break; 382 case 'm': 383 log_info("USER:\'%c\'", cmd); 384 printf("Simulate incoming call from 7654321\n"); 385 hfp_ag_set_clip(129, "7654321"); 386 hfp_ag_incoming_call(); 387 break; 388 case 'C': 389 log_info("USER:\'%c\'", cmd); 390 printf("Simulate terminate call\n"); 391 hfp_ag_call_dropped(); 392 break; 393 case 'd': 394 log_info("USER:\'%c\'", cmd); 395 printf("Report AG failure\n"); 396 hfp_ag_report_extended_audio_gateway_error_result_code(device_addr, HFP_CME_ERROR_AG_FAILURE); 397 break; 398 case 'e': 399 log_info("USER:\'%c\'", cmd); 400 printf("Answer call on AG\n"); 401 hfp_ag_answer_incoming_call(); 402 break; 403 case 'E': 404 log_info("USER:\'%c\'", cmd); 405 printf("Reject call on AG\n"); 406 hfp_ag_terminate_call(); 407 break; 408 case 'f': 409 log_info("USER:\'%c\'", cmd); 410 printf("Disable cellular network\n"); 411 hfp_ag_set_registration_status(0); 412 break; 413 case 'F': 414 log_info("USER:\'%c\'", cmd); 415 printf("Enable cellular network\n"); 416 hfp_ag_set_registration_status(1); 417 break; 418 case 'g': 419 log_info("USER:\'%c\'", cmd); 420 printf("Set signal strength to 0\n"); 421 hfp_ag_set_signal_strength(0); 422 break; 423 case 'G': 424 log_info("USER:\'%c\'", cmd); 425 printf("Set signal strength to 5\n"); 426 hfp_ag_set_signal_strength(5); 427 break; 428 case 'h': 429 log_info("USER:\'%c\'", cmd); 430 printf("Disable roaming\n"); 431 hfp_ag_set_roaming_status(0); 432 break; 433 case 'H': 434 log_info("USER:\'%c\'", cmd); 435 printf("Enable roaming\n"); 436 hfp_ag_set_roaming_status(1); 437 break; 438 case 'i': 439 log_info("USER:\'%c\'", cmd); 440 printf("Set battery level to 3\n"); 441 hfp_ag_set_battery_level(3); 442 break; 443 case 'I': 444 log_info("USER:\'%c\'", cmd); 445 printf("Set battery level to 5\n"); 446 hfp_ag_set_battery_level(5); 447 break; 448 case 'j': 449 log_info("USER:\'%c\'", cmd); 450 printf("Answering call on remote side\n"); 451 hfp_ag_outgoing_call_established(); 452 break; 453 case 'r': 454 log_info("USER:\'%c\'", cmd); 455 printf("Disable in-band ring tone\n"); 456 hfp_ag_set_use_in_band_ring_tone(0); 457 break; 458 case 'k': 459 log_info("USER:\'%c\'", cmd); 460 printf("Memory 1 cleared\n"); 461 memory_1_enabled = 0; 462 break; 463 case 'K': 464 log_info("USER:\'%c\'", cmd); 465 printf("Memory 1 set\n"); 466 memory_1_enabled = 1; 467 break; 468 case 'l': 469 log_info("USER:\'%c\'", cmd); 470 printf("Last dialed number cleared\n"); 471 hfp_ag_clear_last_dialed_number(); 472 break; 473 case 'L': 474 log_info("USER:\'%c\'", cmd); 475 printf("Outgoing call connected, ringing\n"); 476 hfp_ag_outgoing_call_ringing(); 477 break; 478 case 'n': 479 log_info("USER:\'%c\'", cmd); 480 printf("Disable Voice Recognition\n"); 481 hfp_ag_activate_voice_recognition(device_addr, 0); 482 break; 483 case 'N': 484 log_info("USER:\'%c\'", cmd); 485 printf("Enable Voice Recognition\n"); 486 hfp_ag_activate_voice_recognition(device_addr, 1); 487 break; 488 case 'o': 489 log_info("USER:\'%c\'", cmd); 490 printf("Set speaker gain to 0 (minimum)\n"); 491 hfp_ag_set_speaker_gain(device_addr, 0); 492 break; 493 case 'O': 494 log_info("USER:\'%c\'", cmd); 495 printf("Set speaker gain to 9 (default)\n"); 496 hfp_ag_set_speaker_gain(device_addr, 9); 497 break; 498 case 'p': 499 log_info("USER:\'%c\'", cmd); 500 printf("Set speaker gain to 12 (higher)\n"); 501 hfp_ag_set_speaker_gain(device_addr, 12); 502 break; 503 case 'P': 504 log_info("USER:\'%c\'", cmd); 505 printf("Set speaker gain to 15 (maximum)\n"); 506 hfp_ag_set_speaker_gain(device_addr, 15); 507 break; 508 case 'q': 509 log_info("USER:\'%c\'", cmd); 510 printf("Set microphone gain to 0\n"); 511 hfp_ag_set_microphone_gain(device_addr, 0); 512 break; 513 case 'Q': 514 log_info("USER:\'%c\'", cmd); 515 printf("Set microphone gain to 9\n"); 516 hfp_ag_set_microphone_gain(device_addr, 9); 517 break; 518 case 's': 519 log_info("USER:\'%c\'", cmd); 520 printf("Set microphone gain to 12\n"); 521 hfp_ag_set_microphone_gain(device_addr, 12); 522 break; 523 case 'S': 524 log_info("USER:\'%c\'", cmd); 525 printf("Set microphone gain to 15\n"); 526 hfp_ag_set_microphone_gain(device_addr, 15); 527 break; 528 case 'R': 529 log_info("USER:\'%c\'", cmd); 530 printf("Enable in-band ring tone\n"); 531 hfp_ag_set_use_in_band_ring_tone(1); 532 break; 533 case 't': 534 log_info("USER:\'%c\'", cmd); 535 printf("Terminate HCI connection. 0x%2x\n", handle); 536 gap_disconnect(handle); 537 break; 538 case 'u': 539 log_info("USER:\'%c\'", cmd); 540 printf("Join held call\n"); 541 hfp_ag_join_held_call(); 542 break; 543 case 'v': 544 start_scan(); 545 break; 546 case 'w': 547 log_info("USER:\'%c\'", cmd); 548 printf("AG: Put incoming call on hold (Response and Hold)\n"); 549 hfp_ag_hold_incoming_call(); 550 break; 551 case 'x': 552 log_info("USER:\'%c\'", cmd); 553 printf("AG: Accept held incoming call (Response and Hold)\n"); 554 hfp_ag_accept_held_incoming_call(); 555 break; 556 case 'X': 557 log_info("USER:\'%c\'", cmd); 558 printf("AG: Reject held incoming call (Response and Hold)\n"); 559 hfp_ag_reject_held_incoming_call(); 560 break; 561 default: 562 show_usage(); 563 break; 564 } 565 } 566 #endif 567 568 #define SCO_REPORT_PERIOD 100 569 static void send_sco_data(void){ 570 if (!sco_handle) return; 571 572 const int sco_packet_length = hci_get_sco_packet_length(); 573 const int sco_payload_length = sco_packet_length - 3; 574 const int frames_per_packet = sco_payload_length; // for 8-bit data. for 16-bit data it's /2 575 576 hci_reserve_packet_buffer(); 577 uint8_t * sco_packet = hci_get_outgoing_packet_buffer(); 578 // set handle + flags 579 little_endian_store_16(sco_packet, 0, sco_handle); 580 // set len 581 sco_packet[2] = sco_payload_length; 582 int i; 583 for (i=0;i<frames_per_packet;i++){ 584 sco_packet[3+i] = sine[phase]; 585 phase++; 586 if (phase >= sizeof(sine)) phase = 0; 587 } 588 hci_send_sco_packet_buffer(sco_packet_length); 589 590 // request another send event 591 hci_request_sco_can_send_now_event(); 592 593 static int count = 0; 594 count++; 595 if ((count % SCO_REPORT_PERIOD) == 0) printf("Sent %u\n", count); 596 } 597 598 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size){ 599 switch (packet_type){ 600 case HCI_EVENT_PACKET: 601 switch (event[0]){ 602 case HCI_EVENT_INQUIRY_RESULT: 603 case HCI_EVENT_INQUIRY_RESULT_WITH_RSSI: 604 case HCI_EVENT_INQUIRY_COMPLETE: 605 case HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE: 606 inquiry_packet_handler(HCI_EVENT_PACKET, event, event_size); 607 break; 608 case HCI_EVENT_SCO_CAN_SEND_NOW: 609 send_sco_data(); 610 break; 611 default: 612 break; 613 } 614 615 if (event[0] != HCI_EVENT_HFP_META) return; 616 617 if (event[3] 618 && event[2] != HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER 619 && event[2] != HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG 620 && event[2] != HFP_SUBEVENT_TRANSMIT_DTMF_CODES){ 621 printf("ERROR, status: %u\n", event[3]); 622 return; 623 } 624 625 switch (event[2]) { 626 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 627 handle = hfp_subevent_service_level_connection_established_get_con_handle(event); 628 printf("Service level connection established.\n"); 629 break; 630 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 631 printf("Service level connection released.\n"); 632 sco_handle = 0; 633 break; 634 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 635 if (hfp_subevent_audio_connection_established_get_status(event)){ 636 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 637 sco_handle = 0; 638 } else { 639 sco_handle = hfp_subevent_audio_connection_established_get_handle(event); 640 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 641 hci_request_sco_can_send_now_event(); 642 } 643 break; 644 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 645 printf("\n** Audio connection released **\n"); 646 sco_handle = 0; 647 break; 648 case HFP_SUBEVENT_START_RINGINIG: 649 printf("\n** Start Ringing **\n"); 650 break; 651 case HFP_SUBEVENT_STOP_RINGINIG: 652 printf("\n** Stop Ringing **\n"); 653 break; 654 case HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER: 655 printf("\n** Outgoing call '%s' **\n", hfp_subevent_place_call_with_number_get_number(event)); 656 // validate number 657 if ( strcmp("1234567", hfp_subevent_place_call_with_number_get_number(event)) == 0 658 || strcmp("7654321", hfp_subevent_place_call_with_number_get_number(event)) == 0 659 || (memory_1_enabled && strcmp(">1", hfp_subevent_place_call_with_number_get_number(event)) == 0)){ 660 printf("Dialstring valid: accept call\n"); 661 hfp_ag_outgoing_call_accepted(); 662 } else { 663 printf("Dialstring invalid: reject call\n"); 664 hfp_ag_outgoing_call_rejected(); 665 } 666 break; 667 668 case HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG: 669 printf("\n** Attach number to voice tag. Sending '1234567\n"); 670 hfp_ag_send_phone_number_for_voice_tag(device_addr, "1234567"); 671 break; 672 case HFP_SUBEVENT_TRANSMIT_DTMF_CODES: 673 printf("\n** Send DTMF Codes: '%s'\n", hfp_subevent_transmit_dtmf_codes_get_dtmf(event)); 674 hfp_ag_send_dtmf_code_done(device_addr); 675 break; 676 case HFP_SUBEVENT_CALL_ANSWERED: 677 printf("Call answered by HF\n"); 678 break; 679 default: 680 printf("Event not handled %u\n", event[2]); 681 break; 682 } 683 default: 684 break; 685 } 686 } 687 688 static hfp_phone_number_t subscriber_number = { 689 129, "225577" 690 }; 691 692 /* @section Main Application Setup 693 * 694 * @text Listing MainConfiguration shows main application code. 695 * To run a HFP AG service you need to initialize the SDP, and to create and register HFP AG record with it. 696 * The packet_handler is used for sending commands to the HFP HF. It also receives the HFP HF's answers. 697 * The stdin_process callback allows for sending commands to the HFP HF. 698 * At the end the Bluetooth stack is started. 699 */ 700 701 /* LISTING_START(MainConfiguration): Setup HFP Audio Gateway */ 702 703 int btstack_main(int argc, const char * argv[]); 704 int btstack_main(int argc, const char * argv[]){ 705 706 gap_discoverable_control(1); 707 708 // L2CAP 709 l2cap_init(); 710 711 // HFP 712 rfcomm_init(); 713 hfp_ag_init(rfcomm_channel_nr); 714 hfp_ag_init_supported_features(0x3ef | (1<<HFP_AGSF_HF_INDICATORS) | (1<<HFP_AGSF_ESCO_S4)); 715 hfp_ag_init_codecs(sizeof(codecs), codecs); 716 hfp_ag_init_ag_indicators(ag_indicators_nr, ag_indicators); 717 hfp_ag_init_hf_indicators(hf_indicators_nr, hf_indicators); 718 hfp_ag_init_call_hold_services(call_hold_services_nr, call_hold_services); 719 hfp_ag_set_subcriber_number_information(&subscriber_number, 1); 720 hfp_ag_register_packet_handler(&packet_handler); 721 hci_register_sco_packet_handler(&packet_handler); 722 723 // SDP Server 724 sdp_init(); 725 memset(hfp_service_buffer, 0, sizeof(hfp_service_buffer)); 726 hfp_ag_create_sdp_record( hfp_service_buffer, 0x10001, rfcomm_channel_nr, hfp_ag_service_name, 0, 0); 727 printf("SDP service record size: %u\n", de_get_len( hfp_service_buffer)); 728 sdp_register_service(hfp_service_buffer); 729 730 #ifdef HAVE_POSIX_STDIN 731 btstack_stdin_setup(stdin_process); 732 #endif 733 // turn on! 734 hci_power_control(HCI_POWER_ON); 735 return 0; 736 } 737 /* LISTING_END */ 738 /* EXAMPLE_END */ 739