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 AG - Audio Gateway 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_BTSTACK_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 59 #include "btstack.h" 60 #include "sco_demo_util.h" 61 #ifdef HAVE_BTSTACK_STDIN 62 #include "btstack_stdin.h" 63 #endif 64 65 // uncomment to temp disable mSBC codec 66 // #undef ENABLE_HFP_WIDE_BAND_SPEECH 67 68 uint8_t hfp_service_buffer[150]; 69 const uint8_t rfcomm_channel_nr = 1; 70 const char hfp_ag_service_name[] = "HFP AG Demo"; 71 72 static bd_addr_t device_addr; 73 static const char * device_addr_string = "00:02:72:DC:31:C1"; 74 75 #ifdef ENABLE_HFP_WIDE_BAND_SPEECH 76 static uint8_t codecs[] = {HFP_CODEC_CVSD, HFP_CODEC_MSBC}; 77 #else 78 static uint8_t codecs[] = {HFP_CODEC_CVSD}; 79 #endif 80 81 static uint8_t negotiated_codec = HFP_CODEC_CVSD; 82 83 static hci_con_handle_t acl_handle = HCI_CON_HANDLE_INVALID; 84 static hci_con_handle_t sco_handle = HCI_CON_HANDLE_INVALID; 85 static int memory_1_enabled = 1; 86 static btstack_packet_callback_registration_t hci_event_callback_registration; 87 88 static int ag_indicators_nr = 7; 89 static hfp_ag_indicator_t ag_indicators[] = { 90 // index, name, min range, max range, status, mandatory, enabled, status changed 91 {1, "service", 0, 1, 1, 0, 0, 0}, 92 {2, "call", 0, 1, 0, 1, 1, 0}, 93 {3, "callsetup", 0, 3, 0, 1, 1, 0}, 94 {4, "battchg", 0, 5, 3, 0, 0, 0}, 95 {5, "signal", 0, 5, 5, 0, 1, 0}, 96 {6, "roam", 0, 1, 0, 0, 1, 0}, 97 {7, "callheld", 0, 2, 0, 1, 1, 0} 98 }; 99 100 static int call_hold_services_nr = 5; 101 static const char* call_hold_services[] = {"1", "1x", "2", "2x", "3"}; 102 103 static int hf_indicators_nr = 2; 104 static hfp_generic_status_indicator_t hf_indicators[] = { 105 {1, 1}, 106 {2, 1}, 107 }; 108 109 #define INQUIRY_INTERVAL 5 110 111 enum STATE {INIT, W4_INQUIRY_MODE_COMPLETE, ACTIVE} ; 112 enum STATE state = INIT; 113 114 static void dump_supported_codecs(void){ 115 unsigned int i; 116 int mSBC_skipped = 0; 117 printf("Supported codecs: "); 118 for (i = 0; i < sizeof(codecs); i++){ 119 switch(codecs[i]){ 120 case HFP_CODEC_CVSD: 121 printf("CVSD"); 122 break; 123 case HFP_CODEC_MSBC: 124 if (hci_extended_sco_link_supported()){ 125 printf(", mSBC"); 126 } else { 127 mSBC_skipped = 1; 128 } 129 break; 130 default: 131 btstack_assert(false); 132 break; 133 } 134 } 135 printf("\n"); 136 if (mSBC_skipped){ 137 printf("mSBC codec disabled because eSCO not supported by local controller.\n"); 138 } 139 } 140 141 #ifdef HAVE_BTSTACK_STDIN 142 // Testig User Interface 143 static void show_usage(void){ 144 bd_addr_t iut_address; 145 gap_local_bd_addr(iut_address); 146 147 printf("\n--- Bluetooth HFP Audiogateway (AG) unit Test Console %s ---\n", bd_addr_to_str(iut_address)); 148 printf("\n"); 149 150 printf("a - establish HFP connection to %s\n", bd_addr_to_str(device_addr)); 151 // printf("A - release HFP connection\n"); 152 153 printf("b - establish AUDIO connection | B - release AUDIO connection\n"); 154 printf("c - simulate incoming call from 1234567 | C - simulate call from 1234567 dropped\n"); 155 printf("d - report AG failure\n"); 156 printf("D - delete all link keys\n"); 157 printf("e - answer call on AG | E - reject call on AG\n"); 158 printf("r - disable in-band ring tone | R - enable in-band ring tone\n"); 159 printf("f - Disable cellular network | F - Enable cellular network\n"); 160 printf("g - Set signal strength to 0 | G - Set signal strength to 5\n"); 161 printf("h - Disable roaming | H - Enable roaming\n"); 162 printf("i - Set battery level to 3 | I - Set battery level to 5\n"); 163 printf("j - Answering call on remote side\n"); 164 printf("k - Clear memory #1 | K - Set memory #1\n"); 165 printf("l - Clear last number | L - Set last number\n"); 166 printf("m - simulate incoming call from 7654321\n"); 167 // printf("M - simulate call from 7654321 dropped\n"); 168 printf("n - Disable Voice Recognition | N - Enable Voice Recognition\n"); 169 printf("o - Set speaker volume to 0 (minimum) | O - Set speaker volume to 9 (default)\n"); 170 printf("p - Set speaker volume to 12 (higher) | P - Set speaker volume to 15 (maximum)\n"); 171 printf("q - Set microphone gain to 0 (minimum) | Q - Set microphone gain to 9 (default)\n"); 172 printf("s - Set microphone gain to 12 (higher) | S - Set microphone gain to 15 (maximum)\n"); 173 printf("t - terminate connection\n"); 174 printf("u - join held call\n"); 175 printf("v - discover nearby HF units\n"); 176 printf("w - put incoming call on hold (Response and Hold)\n"); 177 printf("x - accept held incoming call (Response and Hold)\n"); 178 printf("X - reject held incoming call (Response and Hold)\n"); 179 printf("---\n"); 180 } 181 182 static void stdin_process(char cmd){ 183 uint8_t status = ERROR_CODE_SUCCESS; 184 185 switch (cmd){ 186 case 'a': 187 log_info("USER:\'%c\'", cmd); 188 printf("Establish HFP service level connection to %s...\n", bd_addr_to_str(device_addr)); 189 status = hfp_ag_establish_service_level_connection(device_addr); 190 break; 191 case 'A': 192 log_info("USER:\'%c\'", cmd); 193 printf("Release HFP service level connection.\n"); 194 status = hfp_ag_release_service_level_connection(acl_handle); 195 break; 196 case 'Z': 197 log_info("USER:\'%c\'", cmd); 198 printf("Release HFP service level connection to %s...\n", bd_addr_to_str(device_addr)); 199 status = hfp_ag_release_service_level_connection(acl_handle); 200 break; 201 case 'b': 202 log_info("USER:\'%c\'", cmd); 203 printf("Establish Audio connection %s...\n", bd_addr_to_str(device_addr)); 204 status = hfp_ag_establish_audio_connection(acl_handle); 205 break; 206 case 'B': 207 log_info("USER:\'%c\'", cmd); 208 printf("Release Audio connection.\n"); 209 status = hfp_ag_release_audio_connection(acl_handle); 210 break; 211 case 'c': 212 log_info("USER:\'%c\'", cmd); 213 printf("Simulate incoming call from 1234567\n"); 214 hfp_ag_set_clip(129, "1234567"); 215 hfp_ag_incoming_call(); 216 break; 217 case 'D': 218 printf("Deleting all link keys\n"); 219 gap_delete_all_link_keys(); 220 break; 221 case 'm': 222 log_info("USER:\'%c\'", cmd); 223 printf("Simulate incoming call from 7654321\n"); 224 hfp_ag_set_clip(129, "7654321"); 225 hfp_ag_incoming_call(); 226 break; 227 case 'C': 228 log_info("USER:\'%c\'", cmd); 229 printf("Simulate terminate call\n"); 230 hfp_ag_call_dropped(); 231 break; 232 case 'd': 233 log_info("USER:\'%c\'", cmd); 234 printf("Report AG failure\n"); 235 status = hfp_ag_report_extended_audio_gateway_error_result_code(acl_handle, HFP_CME_ERROR_AG_FAILURE); 236 break; 237 case 'e': 238 log_info("USER:\'%c\'", cmd); 239 printf("Answer call on AG\n"); 240 hfp_ag_answer_incoming_call(); 241 break; 242 case 'E': 243 log_info("USER:\'%c\'", cmd); 244 printf("Reject call on AG\n"); 245 hfp_ag_terminate_call(); 246 break; 247 case 'f': 248 log_info("USER:\'%c\'", cmd); 249 printf("Disable cellular network\n"); 250 status = hfp_ag_set_registration_status(0); 251 break; 252 case 'F': 253 log_info("USER:\'%c\'", cmd); 254 printf("Enable cellular network\n"); 255 status = hfp_ag_set_registration_status(1); 256 break; 257 case 'g': 258 log_info("USER:\'%c\'", cmd); 259 printf("Set signal strength to 0\n"); 260 status = hfp_ag_set_signal_strength(0); 261 break; 262 case 'G': 263 log_info("USER:\'%c\'", cmd); 264 printf("Set signal strength to 5\n"); 265 status = hfp_ag_set_signal_strength(5); 266 break; 267 case 'h': 268 log_info("USER:\'%c\'", cmd); 269 printf("Disable roaming\n"); 270 status = hfp_ag_set_roaming_status(0); 271 break; 272 case 'H': 273 log_info("USER:\'%c\'", cmd); 274 printf("Enable roaming\n"); 275 status = hfp_ag_set_roaming_status(1); 276 break; 277 case 'i': 278 log_info("USER:\'%c\'", cmd); 279 printf("Set battery level to 3\n"); 280 status = hfp_ag_set_battery_level(3); 281 break; 282 case 'I': 283 log_info("USER:\'%c\'", cmd); 284 printf("Set battery level to 5\n"); 285 status = hfp_ag_set_battery_level(5); 286 break; 287 case 'j': 288 log_info("USER:\'%c\'", cmd); 289 printf("Answering call on remote side\n"); 290 hfp_ag_outgoing_call_established(); 291 break; 292 case 'r': 293 log_info("USER:\'%c\'", cmd); 294 printf("Disable in-band ring tone\n"); 295 hfp_ag_set_use_in_band_ring_tone(0); 296 break; 297 case 'k': 298 log_info("USER:\'%c\'", cmd); 299 printf("Memory 1 cleared\n"); 300 memory_1_enabled = 0; 301 break; 302 case 'K': 303 log_info("USER:\'%c\'", cmd); 304 printf("Memory 1 set\n"); 305 memory_1_enabled = 1; 306 break; 307 case 'l': 308 log_info("USER:\'%c\'", cmd); 309 printf("Last dialed number cleared\n"); 310 hfp_ag_clear_last_dialed_number(); 311 break; 312 case 'L': 313 log_info("USER:\'%c\'", cmd); 314 printf("Outgoing call connected, ringing\n"); 315 hfp_ag_outgoing_call_ringing(); 316 break; 317 case 'n': 318 log_info("USER:\'%c\'", cmd); 319 printf("Disable Voice Recognition\n"); 320 status = hfp_ag_deactivate_voice_recognition(acl_handle); 321 break; 322 case 'N': 323 log_info("USER:\'%c\'", cmd); 324 printf("Enable Voice Recognition\n"); 325 status = hfp_ag_activate_voice_recognition(acl_handle); 326 break; 327 case 'o': 328 log_info("USER:\'%c\'", cmd); 329 printf("Set speaker gain to 0 (minimum)\n"); 330 status = hfp_ag_set_speaker_gain(acl_handle, 0); 331 break; 332 case 'O': 333 log_info("USER:\'%c\'", cmd); 334 printf("Set speaker gain to 9 (default)\n"); 335 status = hfp_ag_set_speaker_gain(acl_handle, 9); 336 break; 337 case 'p': 338 log_info("USER:\'%c\'", cmd); 339 printf("Set speaker gain to 12 (higher)\n"); 340 status = hfp_ag_set_speaker_gain(acl_handle, 12); 341 break; 342 case 'P': 343 log_info("USER:\'%c\'", cmd); 344 printf("Set speaker gain to 15 (maximum)\n"); 345 status = hfp_ag_set_speaker_gain(acl_handle, 15); 346 break; 347 case 'q': 348 log_info("USER:\'%c\'", cmd); 349 printf("Set microphone gain to 0\n"); 350 status = hfp_ag_set_microphone_gain(acl_handle, 0); 351 break; 352 case 'Q': 353 log_info("USER:\'%c\'", cmd); 354 printf("Set microphone gain to 9\n"); 355 status = hfp_ag_set_microphone_gain(acl_handle, 9); 356 break; 357 case 's': 358 log_info("USER:\'%c\'", cmd); 359 printf("Set microphone gain to 12\n"); 360 status = hfp_ag_set_microphone_gain(acl_handle, 12); 361 break; 362 case 'S': 363 log_info("USER:\'%c\'", cmd); 364 printf("Set microphone gain to 15\n"); 365 status = hfp_ag_set_microphone_gain(acl_handle, 15); 366 break; 367 case 'R': 368 log_info("USER:\'%c\'", cmd); 369 printf("Enable in-band ring tone\n"); 370 hfp_ag_set_use_in_band_ring_tone(1); 371 break; 372 case 't': 373 log_info("USER:\'%c\'", cmd); 374 printf("Terminate HCI connection. 0x%2x\n", acl_handle); 375 gap_disconnect(acl_handle); 376 break; 377 case 'u': 378 log_info("USER:\'%c\'", cmd); 379 printf("Join held call\n"); 380 hfp_ag_join_held_call(); 381 break; 382 case 'v': 383 printf("Start scanning...\n"); 384 gap_inquiry_start(INQUIRY_INTERVAL); 385 break; 386 case 'w': 387 log_info("USER:\'%c\'", cmd); 388 printf("AG: Put incoming call on hold (Response and Hold)\n"); 389 hfp_ag_hold_incoming_call(); 390 break; 391 case 'x': 392 log_info("USER:\'%c\'", cmd); 393 printf("AG: Accept held incoming call (Response and Hold)\n"); 394 hfp_ag_accept_held_incoming_call(); 395 break; 396 case 'X': 397 log_info("USER:\'%c\'", cmd); 398 printf("AG: Reject held incoming call (Response and Hold)\n"); 399 hfp_ag_reject_held_incoming_call(); 400 break; 401 default: 402 show_usage(); 403 break; 404 } 405 406 if (status != ERROR_CODE_SUCCESS){ 407 printf("Could not perform command, status 0x%02x\n", status); 408 } 409 } 410 #endif 411 412 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size){ 413 UNUSED(channel); 414 bd_addr_t addr; 415 uint8_t status; 416 switch (packet_type){ 417 case HCI_EVENT_PACKET: 418 switch(hci_event_packet_get_type(event)){ 419 #ifndef HAVE_BTSTACK_STDIN 420 case BTSTACK_EVENT_STATE: 421 if (btstack_event_state_get_state(event) != HCI_STATE_WORKING) break; 422 printf("Establish HFP AG service level connection to %s...\n", bd_addr_to_str(device_addr)); 423 hfp_ag_establish_service_level_connection(device_addr); 424 break; 425 #endif 426 case GAP_EVENT_INQUIRY_RESULT: 427 gap_event_inquiry_result_get_bd_addr(event, addr); 428 // print info 429 printf("Device found: %s ", bd_addr_to_str(addr)); 430 printf("with COD: 0x%06x, ", (unsigned int) gap_event_inquiry_result_get_class_of_device(event)); 431 if (gap_event_inquiry_result_get_rssi_available(event)){ 432 printf(", rssi %d dBm", (int8_t) gap_event_inquiry_result_get_rssi(event)); 433 } 434 if (gap_event_inquiry_result_get_name_available(event)){ 435 char name_buffer[240]; 436 int name_len = gap_event_inquiry_result_get_name_len(event); 437 memcpy(name_buffer, gap_event_inquiry_result_get_name(event), name_len); 438 name_buffer[name_len] = 0; 439 printf(", name '%s'", name_buffer); 440 } 441 printf("\n"); 442 break; 443 case GAP_EVENT_INQUIRY_COMPLETE: 444 printf("Inquiry scan complete.\n"); 445 break; 446 case HCI_EVENT_SCO_CAN_SEND_NOW: 447 sco_demo_send(sco_handle); 448 break; 449 case HCI_EVENT_COMMAND_COMPLETE: 450 if (HCI_EVENT_IS_COMMAND_COMPLETE(event, hci_read_local_supported_features)){ 451 dump_supported_codecs(); 452 } 453 break; 454 default: 455 break; 456 } 457 458 if (hci_event_packet_get_type(event) != HCI_EVENT_HFP_META) return; 459 460 switch (hci_event_hfp_meta_get_subevent_code(event)) { 461 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 462 status = hfp_subevent_service_level_connection_established_get_status(event); 463 if (status != ERROR_CODE_SUCCESS){ 464 printf("Connection failed, status 0x%02x\n", status); 465 break; 466 } 467 acl_handle = hfp_subevent_service_level_connection_established_get_acl_handle(event); 468 hfp_subevent_service_level_connection_established_get_bd_addr(event, device_addr); 469 printf("Service level connection established to %s.\n", bd_addr_to_str(device_addr)); 470 dump_supported_codecs(); 471 #ifndef HAVE_BTSTACK_STDIN 472 log_info("Establish Audio connection %s", bd_addr_to_str(device_addr)); 473 printf("Establish Audio connection %s...\n", bd_addr_to_str(device_addr)); 474 hfp_ag_establish_audio_connection(acl_handle); 475 #endif 476 break; 477 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 478 printf("Service level connection released.\n"); 479 acl_handle = HCI_CON_HANDLE_INVALID; 480 break; 481 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 482 if (hfp_subevent_audio_connection_established_get_status(event) != ERROR_CODE_SUCCESS){ 483 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 484 } else { 485 sco_handle = hfp_subevent_audio_connection_established_get_sco_handle(event); 486 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 487 negotiated_codec = hfp_subevent_audio_connection_established_get_negotiated_codec(event); 488 switch (negotiated_codec){ 489 case 0x01: 490 printf("Using CVSD codec.\n"); 491 break; 492 case 0x02: 493 printf("Using mSBC codec.\n"); 494 break; 495 default: 496 printf("Using unknown codec 0x%02x.\n", negotiated_codec); 497 break; 498 } 499 sco_demo_set_codec(negotiated_codec); 500 hci_request_sco_can_send_now_event(); 501 } 502 break; 503 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 504 printf("Audio connection released\n"); 505 sco_handle = HCI_CON_HANDLE_INVALID; 506 sco_demo_close(); 507 break; 508 case HFP_SUBEVENT_START_RINGINIG: 509 printf("Start Ringing\n"); 510 break; 511 case HFP_SUBEVENT_STOP_RINGINIG: 512 printf("Stop Ringing\n"); 513 break; 514 case HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER: 515 printf("Outgoing call '%s'\n", hfp_subevent_place_call_with_number_get_number(event)); 516 // validate number 517 if ( strcmp("1234567", hfp_subevent_place_call_with_number_get_number(event)) == 0 518 || strcmp("7654321", hfp_subevent_place_call_with_number_get_number(event)) == 0 519 || (memory_1_enabled && strcmp(">1", hfp_subevent_place_call_with_number_get_number(event)) == 0)){ 520 printf("Dial string valid: accept call\n"); 521 hfp_ag_outgoing_call_accepted(); 522 } else { 523 printf("Dial string invalid: reject call\n"); 524 hfp_ag_outgoing_call_rejected(); 525 } 526 break; 527 528 case HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG: 529 printf("Attach number to voice tag. Sending '1234567\n"); 530 hfp_ag_send_phone_number_for_voice_tag(acl_handle, "1234567"); 531 break; 532 case HFP_SUBEVENT_TRANSMIT_DTMF_CODES: 533 printf("Send DTMF Codes: '%s'\n", hfp_subevent_transmit_dtmf_codes_get_dtmf(event)); 534 hfp_ag_send_dtmf_code_done(acl_handle); 535 break; 536 case HFP_SUBEVENT_CALL_ANSWERED: 537 printf("Call answered by HF\n"); 538 break; 539 case HFP_SUBEVENT_VOICE_RECOGNITION_STATUS: 540 status = hfp_subevent_voice_recognition_status_get_status(event); 541 if (status != ERROR_CODE_SUCCESS){ 542 printf("Voice Recognition command failed with status 0x%02x\n", status); 543 break; 544 } 545 switch(hfp_subevent_voice_recognition_status_get_state(event)){ 546 case 0: 547 printf("Voice recognition status deactivated\n"); 548 break; 549 case 1: 550 printf("Voice recognition status activated\n"); 551 break; 552 default: 553 btstack_assert(false); 554 break; 555 } 556 break; 557 default: 558 break; 559 } 560 break; 561 case HCI_SCO_DATA_PACKET: 562 if (READ_SCO_CONNECTION_HANDLE(event) != sco_handle) break; 563 sco_demo_receive(event, event_size); 564 break; 565 default: 566 break; 567 } 568 } 569 570 static hfp_phone_number_t subscriber_number = { 571 129, "225577" 572 }; 573 574 /* @section Main Application Setup 575 * 576 * @text Listing MainConfiguration shows main application code. 577 * To run a HFP AG service you need to initialize the SDP, and to create and register HFP AG record with it. 578 * The packet_handler is used for sending commands to the HFP HF. It also receives the HFP HF's answers. 579 * The stdin_process callback allows for sending commands to the HFP HF. 580 * At the end the Bluetooth stack is started. 581 */ 582 583 /* LISTING_START(MainConfiguration): Setup HFP Audio Gateway */ 584 585 int btstack_main(int argc, const char * argv[]); 586 int btstack_main(int argc, const char * argv[]){ 587 (void)argc; 588 (void)argv; 589 590 sco_demo_init(); 591 592 gap_set_local_name("HFP AG Demo 00:00:00:00:00:00"); 593 gap_discoverable_control(1); 594 595 // L2CAP 596 l2cap_init(); 597 598 uint16_t supported_features = 599 (1<<HFP_AGSF_ESCO_S4) | 600 (1<<HFP_AGSF_HF_INDICATORS) | 601 (1<<HFP_AGSF_CODEC_NEGOTIATION) | 602 (1<<HFP_AGSF_EXTENDED_ERROR_RESULT_CODES) | 603 (1<<HFP_AGSF_ENHANCED_CALL_CONTROL) | 604 (1<<HFP_AGSF_ENHANCED_CALL_STATUS) | 605 (1<<HFP_AGSF_ABILITY_TO_REJECT_A_CALL) | 606 (1<<HFP_AGSF_IN_BAND_RING_TONE) | 607 (1<<HFP_AGSF_VOICE_RECOGNITION_FUNCTION) | 608 (1<<HFP_AGSF_THREE_WAY_CALLING); 609 int wide_band_speech = 1; 610 611 // HFP 612 rfcomm_init(); 613 hfp_ag_init(rfcomm_channel_nr); 614 hfp_ag_init_supported_features(supported_features); 615 hfp_ag_init_codecs(sizeof(codecs), codecs); 616 hfp_ag_init_ag_indicators(ag_indicators_nr, ag_indicators); 617 hfp_ag_init_hf_indicators(hf_indicators_nr, hf_indicators); 618 hfp_ag_init_call_hold_services(call_hold_services_nr, call_hold_services); 619 hfp_ag_set_subcriber_number_information(&subscriber_number, 1); 620 621 // SDP Server 622 sdp_init(); 623 memset(hfp_service_buffer, 0, sizeof(hfp_service_buffer)); 624 hfp_ag_create_sdp_record( hfp_service_buffer, 0x10001, rfcomm_channel_nr, hfp_ag_service_name, 0, supported_features, wide_band_speech); 625 printf("SDP service record size: %u\n", de_get_len( hfp_service_buffer)); 626 sdp_register_service(hfp_service_buffer); 627 628 // register for HCI events and SCO packets 629 hci_event_callback_registration.callback = &packet_handler; 630 hci_add_event_handler(&hci_event_callback_registration); 631 hci_register_sco_packet_handler(&packet_handler); 632 633 // register for HFP events 634 hfp_ag_register_packet_handler(&packet_handler); 635 636 // parse human readable Bluetooth address 637 sscanf_bd_addr(device_addr_string, device_addr); 638 639 #ifdef HAVE_BTSTACK_STDIN 640 btstack_stdin_setup(stdin_process); 641 #endif 642 // turn on! 643 hci_power_control(HCI_POWER_ON); 644 return 0; 645 } 646 /* LISTING_END */ 647 /* EXAMPLE_END */ 648