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 #define __BTSTACK_FILE__ "hfp_ag_demo.c" 39 40 /* 41 * hfp_ag_demo.c 42 */ 43 44 // ***************************************************************************** 45 /* EXAMPLE_START(hfp_ag_demo): HFP Audio Gateway (AG) Demo 46 * 47 * @text This HFP Audio Gateway example demonstrates how to receive 48 * an output from a remote HFP Hands-Free (HF) unit, and, 49 * if HAVE_POSIX_STDIN is defined, how to control the HFP HF. 50 */ 51 // ***************************************************************************** 52 53 54 #include <stdint.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 #include <string.h> 58 #include <unistd.h> 59 60 #include "btstack.h" 61 #include "sco_demo_util.h" 62 #ifdef HAVE_POSIX_STDIN 63 #include "stdin_support.h" 64 #endif 65 66 uint8_t hfp_service_buffer[150]; 67 const uint8_t rfcomm_channel_nr = 1; 68 const char hfp_ag_service_name[] = "BTstack HFP AG Test"; 69 70 static bd_addr_t device_addr; 71 static const char * device_addr_string = "00:15:83:5F:9D:46"; 72 73 #ifdef ENABLE_HFP_WIDE_BAND_SPEECH 74 static uint8_t codecs[] = {HFP_CODEC_CVSD, HFP_CODEC_MSBC}; 75 #else 76 static uint8_t codecs[] = {HFP_CODEC_CVSD}; 77 #endif 78 79 static uint8_t negotiated_codec = HFP_CODEC_CVSD; 80 81 static hci_con_handle_t acl_handle = -1; 82 static hci_con_handle_t sco_handle; 83 static int memory_1_enabled = 1; 84 static btstack_packet_callback_registration_t hci_event_callback_registration; 85 86 static int ag_indicators_nr = 7; 87 static hfp_ag_indicator_t ag_indicators[] = { 88 // index, name, min range, max range, status, mandatory, enabled, status changed 89 {1, "service", 0, 1, 1, 0, 0, 0}, 90 {2, "call", 0, 1, 0, 1, 1, 0}, 91 {3, "callsetup", 0, 3, 0, 1, 1, 0}, 92 {4, "battchg", 0, 5, 3, 0, 0, 0}, 93 {5, "signal", 0, 5, 5, 0, 1, 0}, 94 {6, "roam", 0, 1, 0, 0, 1, 0}, 95 {7, "callheld", 0, 2, 0, 1, 1, 0} 96 }; 97 98 static int call_hold_services_nr = 5; 99 static const char* call_hold_services[] = {"1", "1x", "2", "2x", "3"}; 100 101 static int hf_indicators_nr = 2; 102 static hfp_generic_status_indicator_t hf_indicators[] = { 103 {1, 1}, 104 {2, 1}, 105 }; 106 107 char cmd; 108 109 // GAP INQUIRY 110 111 #define MAX_DEVICES 10 112 enum DEVICE_STATE { REMOTE_NAME_REQUEST, REMOTE_NAME_INQUIRED, REMOTE_NAME_FETCHED }; 113 struct device { 114 bd_addr_t address; 115 uint16_t clockOffset; 116 uint32_t classOfDevice; 117 uint8_t pageScanRepetitionMode; 118 uint8_t rssi; 119 enum DEVICE_STATE state; 120 }; 121 122 #define INQUIRY_INTERVAL 5 123 struct device devices[MAX_DEVICES]; 124 int deviceCount = 0; 125 126 127 enum STATE {INIT, W4_INQUIRY_MODE_COMPLETE, ACTIVE} ; 128 enum STATE state = INIT; 129 130 static void dump_supported_codecs(void){ 131 int i; 132 int mSBC_skipped = 0; 133 printf("Supported codecs: "); 134 for (i = 0; i < sizeof(codecs); i++){ 135 switch(codecs[i]){ 136 case HFP_CODEC_CVSD: 137 printf("CVSD"); 138 break; 139 case HFP_CODEC_MSBC: 140 if (hci_extended_sco_link_supported()){ 141 printf(", mSBC"); 142 } else { 143 mSBC_skipped = 1; 144 } 145 break; 146 } 147 } 148 printf("\n"); 149 if (mSBC_skipped){ 150 printf("mSBC codec disabled because eSCO not supported by local controller.\n"); 151 } 152 } 153 154 static int getDeviceIndexForAddress( bd_addr_t addr){ 155 int j; 156 for (j=0; j< deviceCount; j++){ 157 if (bd_addr_cmp(addr, devices[j].address) == 0){ 158 return j; 159 } 160 } 161 return -1; 162 } 163 164 #ifdef HAVE_POSIX_STDIN 165 static void start_scan(void){ 166 printf("Starting inquiry scan..\n"); 167 hci_send_cmd(&hci_inquiry, HCI_INQUIRY_LAP, INQUIRY_INTERVAL, 0); 168 } 169 #endif 170 171 static int has_more_remote_name_requests(void){ 172 int i; 173 for (i=0;i<deviceCount;i++) { 174 if (devices[i].state == REMOTE_NAME_REQUEST) return 1; 175 } 176 return 0; 177 } 178 179 static void do_next_remote_name_request(void){ 180 int i; 181 for (i=0;i<deviceCount;i++) { 182 // remote name request 183 if (devices[i].state == REMOTE_NAME_REQUEST){ 184 devices[i].state = REMOTE_NAME_INQUIRED; 185 printf("Get remote name of %s...\n", bd_addr_to_str(devices[i].address)); 186 hci_send_cmd(&hci_remote_name_request, devices[i].address, 187 devices[i].pageScanRepetitionMode, 0, devices[i].clockOffset | 0x8000); 188 return; 189 } 190 } 191 } 192 193 static void continue_remote_names(void){ 194 // don't get remote names for testing 195 if (has_more_remote_name_requests()){ 196 do_next_remote_name_request(); 197 return; 198 } 199 // try to find PTS 200 int i; 201 for (i=0;i<deviceCount;i++){ 202 if (memcmp(devices[i].address, device_addr, 6) == 0){ 203 printf("Inquiry scan over, successfully found PTS at index %u\nReady to connect to it.\n", i); 204 return; 205 } 206 } 207 printf("Inquiry scan over but PTS not found :(\n"); 208 } 209 210 static void inquiry_packet_handler (uint8_t packet_type, uint8_t *packet, uint16_t size){ 211 UNUSED(size); 212 213 bd_addr_t addr; 214 int i; 215 int numResponses; 216 int index; 217 218 // printf("packet_handler: pt: 0x%02x, packet[0]: 0x%02x\n", packet_type, packet[0]); 219 if (packet_type != HCI_EVENT_PACKET) return; 220 221 uint8_t event = packet[0]; 222 223 switch(event){ 224 case HCI_EVENT_INQUIRY_RESULT: 225 case HCI_EVENT_INQUIRY_RESULT_WITH_RSSI:{ 226 numResponses = hci_event_inquiry_result_get_num_responses(packet); 227 int offset = 3; 228 for (i=0; i<numResponses && deviceCount < MAX_DEVICES;i++){ 229 reverse_bd_addr(&packet[offset], addr); 230 offset += 6; 231 index = getDeviceIndexForAddress(addr); 232 if (index >= 0) continue; // already in our list 233 memcpy(devices[deviceCount].address, addr, 6); 234 235 devices[deviceCount].pageScanRepetitionMode = packet[offset]; 236 offset += 1; 237 238 if (event == HCI_EVENT_INQUIRY_RESULT){ 239 offset += 2; // Reserved + Reserved 240 devices[deviceCount].classOfDevice = little_endian_read_24(packet, offset); 241 offset += 3; 242 devices[deviceCount].clockOffset = little_endian_read_16(packet, offset) & 0x7fff; 243 offset += 2; 244 devices[deviceCount].rssi = 0; 245 } else { 246 offset += 1; // Reserved 247 devices[deviceCount].classOfDevice = little_endian_read_24(packet, offset); 248 offset += 3; 249 devices[deviceCount].clockOffset = little_endian_read_16(packet, offset) & 0x7fff; 250 offset += 2; 251 devices[deviceCount].rssi = packet[offset]; 252 offset += 1; 253 } 254 devices[deviceCount].state = REMOTE_NAME_REQUEST; 255 printf("Device #%u found: %s with COD: 0x%06x, pageScan %d, clock offset 0x%04x, rssi 0x%02x\n", 256 deviceCount, bd_addr_to_str(addr), 257 devices[deviceCount].classOfDevice, devices[deviceCount].pageScanRepetitionMode, 258 devices[deviceCount].clockOffset, devices[deviceCount].rssi); 259 deviceCount++; 260 } 261 262 break; 263 } 264 case HCI_EVENT_INQUIRY_COMPLETE: 265 for (i=0;i<deviceCount;i++) { 266 // retry remote name request 267 if (devices[i].state == REMOTE_NAME_INQUIRED) 268 devices[i].state = REMOTE_NAME_REQUEST; 269 } 270 continue_remote_names(); 271 break; 272 273 case HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE: 274 reverse_bd_addr(&packet[3], addr); 275 index = getDeviceIndexForAddress(addr); 276 if (index >= 0) { 277 if (packet[2] == 0) { 278 printf("Name: '%s'\n", &packet[9]); 279 devices[index].state = REMOTE_NAME_FETCHED; 280 } else { 281 printf("Failed to get name: page timeout\n"); 282 } 283 } 284 continue_remote_names(); 285 break; 286 287 default: 288 break; 289 } 290 } 291 // GAP INQUIRY END 292 #ifdef HAVE_POSIX_STDIN 293 294 // prototypes 295 static void show_usage(void); 296 297 // Testig User Interface 298 static void show_usage(void){ 299 bd_addr_t iut_address; 300 gap_local_bd_addr(iut_address); 301 302 printf("\n--- Bluetooth HFP Audiogateway (AG) unit Test Console %s ---\n", bd_addr_to_str(iut_address)); 303 printf("\n"); 304 305 printf("a - establish HFP connection to PTS module %s\n", bd_addr_to_str(device_addr)); 306 // printf("A - release HFP connection to PTS module\n"); 307 308 printf("b - establish AUDIO connection | B - release AUDIO connection\n"); 309 printf("c - simulate incoming call from 1234567 | C - simulate call from 1234567 dropped\n"); 310 printf("d - report AG failure\n"); 311 printf("e - answer call on AG | E - reject call on AG\n"); 312 printf("r - disable in-band ring tone | R - enable in-band ring tone\n"); 313 printf("f - Disable cellular network | F - Enable cellular network\n"); 314 printf("g - Set signal strength to 0 | G - Set signal strength to 5\n"); 315 printf("h - Disable roaming | H - Enable roaming\n"); 316 printf("i - Set battery level to 3 | I - Set battery level to 5\n"); 317 printf("j - Answering call on remote side\n"); 318 printf("k - Clear memory #1 | K - Set memory #1\n"); 319 printf("l - Clear last number | L - Set last number\n"); 320 printf("m - simulate incoming call from 7654321\n"); 321 // printf("M - simulate call from 7654321 dropped\n"); 322 printf("n - Disable Voice Regocnition | N - Enable Voice Recognition\n"); 323 printf("o - Set speaker volume to 0 (minimum) | O - Set speaker volume to 9 (default)\n"); 324 printf("p - Set speaker volume to 12 (higher) | P - Set speaker volume to 15 (maximum)\n"); 325 printf("q - Set microphone gain to 0 (minimum) | Q - Set microphone gain to 9 (default)\n"); 326 printf("s - Set microphone gain to 12 (higher) | S - Set microphone gain to 15 (maximum)\n"); 327 printf("t - terminate connection\n"); 328 printf("u - join held call\n"); 329 printf("v - discover nearby HF units\n"); 330 printf("w - put incoming call on hold (Response and Hold)\n"); 331 printf("x - accept held incoming call (Response and Hold)\n"); 332 printf("X - reject held incoming call (Response and Hold)\n"); 333 334 printf("---\n"); 335 printf("Ctrl-c - exit\n"); 336 printf("---\n"); 337 } 338 339 static void stdin_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type){ 340 UNUSED(ds); 341 UNUSED(callback_type); 342 343 cmd = btstack_stdin_read(); 344 switch (cmd){ 345 case 'a': 346 log_info("USER:\'%c\'", cmd); 347 printf("Establish HFP service level connection to PTS module %s...\n", bd_addr_to_str(device_addr)); 348 hfp_ag_establish_service_level_connection(device_addr); 349 break; 350 case 'A': 351 log_info("USER:\'%c\'", cmd); 352 printf("Release HFP service level connection.\n"); 353 hfp_ag_release_service_level_connection(acl_handle); 354 break; 355 case 'Z': 356 log_info("USER:\'%c\'", cmd); 357 printf("Release HFP service level connection to %s...\n", bd_addr_to_str(device_addr)); 358 hfp_ag_release_service_level_connection(acl_handle); 359 break; 360 case 'b': 361 log_info("USER:\'%c\'", cmd); 362 printf("Establish Audio connection %s...\n", bd_addr_to_str(device_addr)); 363 hfp_ag_establish_audio_connection(acl_handle); 364 break; 365 case 'B': 366 log_info("USER:\'%c\'", cmd); 367 printf("Release Audio connection.\n"); 368 hfp_ag_release_audio_connection(acl_handle); 369 break; 370 case 'c': 371 log_info("USER:\'%c\'", cmd); 372 printf("Simulate incoming call from 1234567\n"); 373 hfp_ag_set_clip(129, "1234567"); 374 hfp_ag_incoming_call(); 375 break; 376 case 'm': 377 log_info("USER:\'%c\'", cmd); 378 printf("Simulate incoming call from 7654321\n"); 379 hfp_ag_set_clip(129, "7654321"); 380 hfp_ag_incoming_call(); 381 break; 382 case 'C': 383 log_info("USER:\'%c\'", cmd); 384 printf("Simulate terminate call\n"); 385 hfp_ag_call_dropped(); 386 break; 387 case 'd': 388 log_info("USER:\'%c\'", cmd); 389 printf("Report AG failure\n"); 390 hfp_ag_report_extended_audio_gateway_error_result_code(acl_handle, HFP_CME_ERROR_AG_FAILURE); 391 break; 392 case 'e': 393 log_info("USER:\'%c\'", cmd); 394 printf("Answer call on AG\n"); 395 hfp_ag_answer_incoming_call(); 396 break; 397 case 'E': 398 log_info("USER:\'%c\'", cmd); 399 printf("Reject call on AG\n"); 400 hfp_ag_terminate_call(); 401 break; 402 case 'f': 403 log_info("USER:\'%c\'", cmd); 404 printf("Disable cellular network\n"); 405 hfp_ag_set_registration_status(0); 406 break; 407 case 'F': 408 log_info("USER:\'%c\'", cmd); 409 printf("Enable cellular network\n"); 410 hfp_ag_set_registration_status(1); 411 break; 412 case 'g': 413 log_info("USER:\'%c\'", cmd); 414 printf("Set signal strength to 0\n"); 415 hfp_ag_set_signal_strength(0); 416 break; 417 case 'G': 418 log_info("USER:\'%c\'", cmd); 419 printf("Set signal strength to 5\n"); 420 hfp_ag_set_signal_strength(5); 421 break; 422 case 'h': 423 log_info("USER:\'%c\'", cmd); 424 printf("Disable roaming\n"); 425 hfp_ag_set_roaming_status(0); 426 break; 427 case 'H': 428 log_info("USER:\'%c\'", cmd); 429 printf("Enable roaming\n"); 430 hfp_ag_set_roaming_status(1); 431 break; 432 case 'i': 433 log_info("USER:\'%c\'", cmd); 434 printf("Set battery level to 3\n"); 435 hfp_ag_set_battery_level(3); 436 break; 437 case 'I': 438 log_info("USER:\'%c\'", cmd); 439 printf("Set battery level to 5\n"); 440 hfp_ag_set_battery_level(5); 441 break; 442 case 'j': 443 log_info("USER:\'%c\'", cmd); 444 printf("Answering call on remote side\n"); 445 hfp_ag_outgoing_call_established(); 446 break; 447 case 'r': 448 log_info("USER:\'%c\'", cmd); 449 printf("Disable in-band ring tone\n"); 450 hfp_ag_set_use_in_band_ring_tone(0); 451 break; 452 case 'k': 453 log_info("USER:\'%c\'", cmd); 454 printf("Memory 1 cleared\n"); 455 memory_1_enabled = 0; 456 break; 457 case 'K': 458 log_info("USER:\'%c\'", cmd); 459 printf("Memory 1 set\n"); 460 memory_1_enabled = 1; 461 break; 462 case 'l': 463 log_info("USER:\'%c\'", cmd); 464 printf("Last dialed number cleared\n"); 465 hfp_ag_clear_last_dialed_number(); 466 break; 467 case 'L': 468 log_info("USER:\'%c\'", cmd); 469 printf("Outgoing call connected, ringing\n"); 470 hfp_ag_outgoing_call_ringing(); 471 break; 472 case 'n': 473 log_info("USER:\'%c\'", cmd); 474 printf("Disable Voice Recognition\n"); 475 hfp_ag_activate_voice_recognition(acl_handle, 0); 476 break; 477 case 'N': 478 log_info("USER:\'%c\'", cmd); 479 printf("Enable Voice Recognition\n"); 480 hfp_ag_activate_voice_recognition(acl_handle, 1); 481 break; 482 case 'o': 483 log_info("USER:\'%c\'", cmd); 484 printf("Set speaker gain to 0 (minimum)\n"); 485 hfp_ag_set_speaker_gain(acl_handle, 0); 486 break; 487 case 'O': 488 log_info("USER:\'%c\'", cmd); 489 printf("Set speaker gain to 9 (default)\n"); 490 hfp_ag_set_speaker_gain(acl_handle, 9); 491 break; 492 case 'p': 493 log_info("USER:\'%c\'", cmd); 494 printf("Set speaker gain to 12 (higher)\n"); 495 hfp_ag_set_speaker_gain(acl_handle, 12); 496 break; 497 case 'P': 498 log_info("USER:\'%c\'", cmd); 499 printf("Set speaker gain to 15 (maximum)\n"); 500 hfp_ag_set_speaker_gain(acl_handle, 15); 501 break; 502 case 'q': 503 log_info("USER:\'%c\'", cmd); 504 printf("Set microphone gain to 0\n"); 505 hfp_ag_set_microphone_gain(acl_handle, 0); 506 break; 507 case 'Q': 508 log_info("USER:\'%c\'", cmd); 509 printf("Set microphone gain to 9\n"); 510 hfp_ag_set_microphone_gain(acl_handle, 9); 511 break; 512 case 's': 513 log_info("USER:\'%c\'", cmd); 514 printf("Set microphone gain to 12\n"); 515 hfp_ag_set_microphone_gain(acl_handle, 12); 516 break; 517 case 'S': 518 log_info("USER:\'%c\'", cmd); 519 printf("Set microphone gain to 15\n"); 520 hfp_ag_set_microphone_gain(acl_handle, 15); 521 break; 522 case 'R': 523 log_info("USER:\'%c\'", cmd); 524 printf("Enable in-band ring tone\n"); 525 hfp_ag_set_use_in_band_ring_tone(1); 526 break; 527 case 't': 528 log_info("USER:\'%c\'", cmd); 529 printf("Terminate HCI connection. 0x%2x\n", acl_handle); 530 gap_disconnect(acl_handle); 531 break; 532 case 'u': 533 log_info("USER:\'%c\'", cmd); 534 printf("Join held call\n"); 535 hfp_ag_join_held_call(); 536 break; 537 case 'v': 538 start_scan(); 539 break; 540 case 'w': 541 log_info("USER:\'%c\'", cmd); 542 printf("AG: Put incoming call on hold (Response and Hold)\n"); 543 hfp_ag_hold_incoming_call(); 544 break; 545 case 'x': 546 log_info("USER:\'%c\'", cmd); 547 printf("AG: Accept held incoming call (Response and Hold)\n"); 548 hfp_ag_accept_held_incoming_call(); 549 break; 550 case 'X': 551 log_info("USER:\'%c\'", cmd); 552 printf("AG: Reject held incoming call (Response and Hold)\n"); 553 hfp_ag_reject_held_incoming_call(); 554 break; 555 default: 556 show_usage(); 557 break; 558 } 559 } 560 #endif 561 562 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size){ 563 UNUSED(channel); 564 565 switch (packet_type){ 566 case HCI_EVENT_PACKET: 567 switch (event[0]){ 568 case HCI_EVENT_INQUIRY_RESULT: 569 case HCI_EVENT_INQUIRY_RESULT_WITH_RSSI: 570 case HCI_EVENT_INQUIRY_COMPLETE: 571 case HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE: 572 inquiry_packet_handler(HCI_EVENT_PACKET, event, event_size); 573 break; 574 case HCI_EVENT_SCO_CAN_SEND_NOW: 575 sco_demo_send(sco_handle); 576 break; 577 case HCI_EVENT_COMMAND_COMPLETE: 578 if (HCI_EVENT_IS_COMMAND_COMPLETE(event, hci_read_local_supported_features)){ 579 dump_supported_codecs(); 580 } 581 break; 582 default: 583 break; 584 } 585 586 if (event[0] != HCI_EVENT_HFP_META) return; 587 588 if (event[3] 589 && event[2] != HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER 590 && event[2] != HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG 591 && event[2] != HFP_SUBEVENT_TRANSMIT_DTMF_CODES){ 592 printf("ERROR, status: %u\n", event[3]); 593 return; 594 } 595 596 switch (event[2]) { 597 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 598 acl_handle = hfp_subevent_service_level_connection_established_get_con_handle(event); 599 hfp_subevent_service_level_connection_established_get_bd_addr(event, device_addr); 600 printf("Service level connection established from %s.\n", bd_addr_to_str(device_addr)); 601 dump_supported_codecs(); 602 break; 603 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 604 printf("Service level connection released.\n"); 605 sco_handle = 0; 606 break; 607 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 608 if (hfp_subevent_audio_connection_established_get_status(event)){ 609 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 610 sco_handle = 0; 611 } else { 612 sco_handle = hfp_subevent_audio_connection_established_get_handle(event); 613 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 614 negotiated_codec = hfp_subevent_audio_connection_established_get_negotiated_codec(event); 615 switch (negotiated_codec){ 616 case 0x01: 617 printf("Using CVSD codec.\n"); 618 break; 619 case 0x02: 620 printf("Using mSBC codec.\n"); 621 break; 622 default: 623 printf("Using unknown codec 0x%02x.\n", negotiated_codec); 624 break; 625 } 626 sco_demo_set_codec(negotiated_codec); 627 hci_request_sco_can_send_now_event(); 628 } 629 break; 630 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 631 printf("Audio connection released\n"); 632 sco_handle = 0; 633 sco_demo_close(); 634 break; 635 case HFP_SUBEVENT_START_RINGINIG: 636 printf("Start Ringing\n"); 637 break; 638 case HFP_SUBEVENT_STOP_RINGINIG: 639 printf("Stop Ringing\n"); 640 break; 641 case HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER: 642 printf("Outgoing call '%s'\n", hfp_subevent_place_call_with_number_get_number(event)); 643 // validate number 644 if ( strcmp("1234567", hfp_subevent_place_call_with_number_get_number(event)) == 0 645 || strcmp("7654321", hfp_subevent_place_call_with_number_get_number(event)) == 0 646 || (memory_1_enabled && strcmp(">1", hfp_subevent_place_call_with_number_get_number(event)) == 0)){ 647 printf("Dialstring valid: accept call\n"); 648 hfp_ag_outgoing_call_accepted(); 649 } else { 650 printf("Dialstring invalid: reject call\n"); 651 hfp_ag_outgoing_call_rejected(); 652 } 653 break; 654 655 case HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG: 656 printf("Attach number to voice tag. Sending '1234567\n"); 657 hfp_ag_send_phone_number_for_voice_tag(acl_handle, "1234567"); 658 break; 659 case HFP_SUBEVENT_TRANSMIT_DTMF_CODES: 660 printf("Send DTMF Codes: '%s'\n", hfp_subevent_transmit_dtmf_codes_get_dtmf(event)); 661 hfp_ag_send_dtmf_code_done(acl_handle); 662 break; 663 case HFP_SUBEVENT_CALL_ANSWERED: 664 printf("Call answered by HF\n"); 665 break; 666 default: 667 printf("Event not handled %u\n", event[2]); 668 break; 669 } 670 case HCI_SCO_DATA_PACKET: 671 sco_demo_receive(event, event_size); 672 break; 673 default: 674 break; 675 } 676 } 677 678 static hfp_phone_number_t subscriber_number = { 679 129, "225577" 680 }; 681 682 /* @section Main Application Setup 683 * 684 * @text Listing MainConfiguration shows main application code. 685 * To run a HFP AG service you need to initialize the SDP, and to create and register HFP AG record with it. 686 * The packet_handler is used for sending commands to the HFP HF. It also receives the HFP HF's answers. 687 * The stdin_process callback allows for sending commands to the HFP HF. 688 * At the end the Bluetooth stack is started. 689 */ 690 691 /* LISTING_START(MainConfiguration): Setup HFP Audio Gateway */ 692 693 int btstack_main(int argc, const char * argv[]); 694 int btstack_main(int argc, const char * argv[]){ 695 (void)argc; 696 (void)argv; 697 698 sco_demo_init(); 699 700 // register for HCI events 701 hci_event_callback_registration.callback = &packet_handler; 702 hci_add_event_handler(&hci_event_callback_registration); 703 hci_register_sco_packet_handler(&packet_handler); 704 705 gap_discoverable_control(1); 706 707 // L2CAP 708 l2cap_init(); 709 710 uint16_t supported_features = 711 (1<<HFP_AGSF_ESCO_S4) | 712 (1<<HFP_AGSF_HF_INDICATORS) | 713 (1<<HFP_AGSF_CODEC_NEGOTIATION) | 714 (1<<HFP_AGSF_EXTENDED_ERROR_RESULT_CODES) | 715 (1<<HFP_AGSF_ENHANCED_CALL_CONTROL) | 716 (1<<HFP_AGSF_ENHANCED_CALL_STATUS) | 717 (1<<HFP_AGSF_ABILITY_TO_REJECT_A_CALL) | 718 (1<<HFP_AGSF_IN_BAND_RING_TONE) | 719 (1<<HFP_AGSF_VOICE_RECOGNITION_FUNCTION) | 720 (1<<HFP_AGSF_THREE_WAY_CALLING); 721 int wide_band_speech = 1; 722 723 // HFP 724 rfcomm_init(); 725 hfp_ag_init(rfcomm_channel_nr); 726 hfp_ag_init_supported_features(supported_features); 727 hfp_ag_init_codecs(sizeof(codecs), codecs); 728 hfp_ag_init_ag_indicators(ag_indicators_nr, ag_indicators); 729 hfp_ag_init_hf_indicators(hf_indicators_nr, hf_indicators); 730 hfp_ag_init_call_hold_services(call_hold_services_nr, call_hold_services); 731 hfp_ag_set_subcriber_number_information(&subscriber_number, 1); 732 hfp_ag_register_packet_handler(&packet_handler); 733 hci_register_sco_packet_handler(&packet_handler); 734 735 // SDP Server 736 sdp_init(); 737 memset(hfp_service_buffer, 0, sizeof(hfp_service_buffer)); 738 hfp_ag_create_sdp_record( hfp_service_buffer, 0x10001, rfcomm_channel_nr, hfp_ag_service_name, 0, supported_features, wide_band_speech); 739 printf("SDP service record size: %u\n", de_get_len( hfp_service_buffer)); 740 sdp_register_service(hfp_service_buffer); 741 742 // parse humand readable Bluetooth address 743 sscanf_bd_addr(device_addr_string, device_addr); 744 745 #ifdef HAVE_POSIX_STDIN 746 btstack_stdin_setup(stdin_process); 747 #endif 748 // turn on! 749 hci_power_control(HCI_POWER_ON); 750 return 0; 751 } 752 /* LISTING_END */ 753 /* EXAMPLE_END */ 754