1 2 /* 3 * Copyright (C) 2014 BlueKitchen GmbH 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the copyright holders nor the names of 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 4. Any redistribution, use, or modification is done solely for 18 * personal benefit and not for any commercial purpose or for 19 * monetary gain. 20 * 21 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 25 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 28 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 31 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * Please inquire about commercial licensing options at 35 * [email protected] 36 * 37 */ 38 39 /* 40 * hfp_hs_demo.c 41 */ 42 43 // ***************************************************************************** 44 /* EXAMPLE_START(hfp_hs_demo): HFP Hands-Free (HF) Demo 45 * 46 * @text This HFP Hands-Free example demonstrates how to receive 47 * an output from a remote HFP audio gateway (AG), and, 48 * if HAVE_POSIX_STDIN is defined, how to control the HFP AG. 49 */ 50 // ***************************************************************************** 51 52 53 #include "btstack_config.h" 54 55 #include <stdint.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <string.h> 59 #include <unistd.h> 60 61 #include "btstack.h" 62 #include "sco_demo_util.h" 63 #ifdef HAVE_POSIX_STDIN 64 #include "stdin_support.h" 65 #endif 66 67 68 uint8_t hfp_service_buffer[150]; 69 const uint8_t rfcomm_channel_nr = 1; 70 const char hfp_hf_service_name[] = "BTstack HFP HF Demo"; 71 72 #ifdef HAVE_POSIX_STDIN 73 static bd_addr_t device_addr = {0x80,0xbe,0x05,0xd5,0x28,0x48}; 74 // 80:BE:05:D5:28:48 75 // prototypes 76 static void show_usage(void); 77 #endif 78 static uint16_t handle = -1; 79 static hci_con_handle_t sco_handle; 80 static uint8_t codecs[] = {HFP_CODEC_CVSD, HFP_CODEC_MSBC}; 81 static uint16_t indicators[1] = {0x01}; 82 83 char cmd; 84 85 #ifdef HAVE_POSIX_STDIN 86 87 // Testig User Interface 88 static void show_usage(void){ 89 printf("\n--- Bluetooth HFP Hands-Free (HF) unit Test Console ---\n"); 90 printf("---\n"); 91 92 printf("a - establish SLC connection to device %s\n", bd_addr_to_str(device_addr)); 93 printf("A - release SLC connection to device\n"); 94 95 printf("b - establish Audio connection\n"); 96 printf("B - release Audio connection\n"); 97 98 printf("c - disable registration status update for all AG indicators\n"); 99 printf("C - enable registration status update for all AG indicators\n"); 100 101 printf("d - query network operator.\n"); 102 printf("D - set HFP AG registration status update for individual indicators (IIA)\n"); 103 104 printf("e - disable reporting of the extended AG error result code\n"); 105 printf("E - enable reporting of the extended AG error result code\n"); 106 107 printf("f - answer incoming call\n"); 108 printf("F - Hangup call\n"); 109 110 printf("g - query network operator name\n"); 111 printf("G - reject incoming call\n"); 112 113 printf("i - dial 1234567\n"); 114 printf("I - dial 7654321\n"); 115 116 printf("j - dial #1\n"); 117 printf("J - dial #99\n"); 118 119 printf("k - deactivate call waiting notification\n"); 120 printf("K - activate call waiting notification\n"); 121 122 printf("l - deactivate calling line notification\n"); 123 printf("L - activate calling line notification\n"); 124 125 printf("m - deactivate echo canceling and noise reduction\n"); 126 printf("M - activate echo canceling and noise reduction\n"); 127 128 printf("n - deactivate voice recognition\n"); 129 printf("N - activate voice recognition\n"); 130 131 printf("o - Set speaker volume to 0 (minimum)\n"); 132 printf("O - Set speaker volume to 9 (default)\n"); 133 printf("p - Set speaker volume to 12 (higher)\n"); 134 printf("P - Set speaker volume to 15 (maximum)\n"); 135 136 printf("q - Set microphone gain to 0 (minimum)\n"); 137 printf("Q - Set microphone gain to 9 (default)\n"); 138 printf("s - Set microphone gain to 12 (higher)\n"); 139 printf("S - Set microphone gain to 15 (maximum)\n"); 140 141 printf("t - terminate connection\n"); 142 143 printf("u - send 'user busy' (TWC 0)\n"); 144 printf("U - end active call and accept other call' (TWC 1)\n"); 145 printf("v - Swap active call and hold/waiting call (TWC 2)\n"); 146 printf("V - Join held call (TWC 3)\n"); 147 printf("w - Connect calls (TWC 4)\n"); 148 printf("W - redial\n"); 149 150 printf("0123456789#*-+ - send DTMF dial tones\n"); 151 152 printf("x - request phone number for voice tag\n"); 153 printf("X - current call status (ECS)\n"); 154 printf("y - release call with index 2 (ECC)\n"); 155 printf("Y - private consulation with call 2(ECC)\n"); 156 157 printf("[ - Query Response and Hold status (RHH ?)\n"); 158 printf("] - Place call in a response and held state(RHH 0)\n"); 159 printf("{ - Accept held call(RHH 1)\n"); 160 printf("} - Reject held call(RHH 2)\n"); 161 162 printf("? - Query Subscriber Number (NUM)\n"); 163 164 printf("! - Update HF indicator with assigned number 1 (HFI)\n"); 165 166 printf("---\n"); 167 printf("Ctrl-c - exit\n"); 168 printf("---\n"); 169 } 170 171 static void stdin_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type){ 172 read(ds->fd, &cmd, 1); 173 174 if (cmd >= '0' && cmd <= '9'){ 175 printf("DTMF Code: %c\n", cmd); 176 hfp_hf_send_dtmf_code(device_addr, cmd); 177 return; 178 } 179 180 switch (cmd){ 181 case '#': 182 case '-': 183 case '+': 184 case '*': 185 log_info("USER:\'%c\'", cmd); 186 printf("DTMF Code: %c\n", cmd); 187 hfp_hf_send_dtmf_code(device_addr, cmd); 188 break; 189 case 'a': 190 log_info("USER:\'%c\'", cmd); 191 printf("Establish Service level connection to device with Bluetooth address %s...\n", bd_addr_to_str(device_addr)); 192 hfp_hf_establish_service_level_connection(device_addr); 193 break; 194 case 'A': 195 log_info("USER:\'%c\'", cmd); 196 printf("Release Service level connection.\n"); 197 hfp_hf_release_service_level_connection(device_addr); 198 break; 199 case 'b': 200 log_info("USER:\'%c\'", cmd); 201 printf("Establish Audio connection to device with Bluetooth address %s...\n", bd_addr_to_str(device_addr)); 202 hfp_hf_establish_audio_connection(device_addr); 203 break; 204 case 'B': 205 log_info("USER:\'%c\'", cmd); 206 printf("Release Audio service level connection.\n"); 207 hfp_hf_release_audio_connection(device_addr); 208 break; 209 case 'C': 210 log_info("USER:\'%c\'", cmd); 211 printf("Enable registration status update for all AG indicators.\n"); 212 hfp_hf_enable_status_update_for_all_ag_indicators(device_addr); 213 case 'c': 214 log_info("USER:\'%c\'", cmd); 215 printf("Disable registration status update for all AG indicators.\n"); 216 hfp_hf_disable_status_update_for_all_ag_indicators(device_addr); 217 break; 218 case 'D': 219 log_info("USER:\'%c\'", cmd); 220 printf("Set HFP AG registration status update for individual indicators (0111111).\n"); 221 hfp_hf_set_status_update_for_individual_ag_indicators(device_addr, 63); 222 break; 223 case 'd': 224 log_info("USER:\'%c\'", cmd); 225 printf("Query network operator.\n"); 226 hfp_hf_query_operator_selection(device_addr); 227 break; 228 case 'E': 229 log_info("USER:\'%c\'", cmd); 230 printf("Enable reporting of the extended AG error result code.\n"); 231 hfp_hf_enable_report_extended_audio_gateway_error_result_code(device_addr); 232 break; 233 case 'e': 234 log_info("USER:\'%c\'", cmd); 235 printf("Disable reporting of the extended AG error result code.\n"); 236 hfp_hf_disable_report_extended_audio_gateway_error_result_code(device_addr); 237 break; 238 case 'f': 239 log_info("USER:\'%c\'", cmd); 240 printf("Answer incoming call.\n"); 241 hfp_hf_answer_incoming_call(device_addr); 242 break; 243 case 'F': 244 log_info("USER:\'%c\'", cmd); 245 printf("Hangup call.\n"); 246 hfp_hf_terminate_call(device_addr); 247 break; 248 case 'G': 249 log_info("USER:\'%c\'", cmd); 250 printf("Reject incoming call.\n"); 251 hfp_hf_reject_incoming_call(device_addr); 252 break; 253 case 'g': 254 log_info("USER:\'%c\'", cmd); 255 printf("Query operator.\n"); 256 hfp_hf_query_operator_selection(device_addr); 257 break; 258 case 't': 259 log_info("USER:\'%c\'", cmd); 260 printf("Terminate HCI connection.\n"); 261 gap_disconnect(handle); 262 break; 263 case 'i': 264 log_info("USER:\'%c\'", cmd); 265 printf("Dial 1234567\n"); 266 hfp_hf_dial_number(device_addr, "1234567"); 267 break; 268 case 'I': 269 log_info("USER:\'%c\'", cmd); 270 printf("Dial 7654321\n"); 271 hfp_hf_dial_number(device_addr, "7654321"); 272 break; 273 case 'j': 274 log_info("USER:\'%c\'", cmd); 275 printf("Dial #1\n"); 276 hfp_hf_dial_memory(device_addr,1); 277 break; 278 case 'J': 279 log_info("USER:\'%c\'", cmd); 280 printf("Dial #99\n"); 281 hfp_hf_dial_memory(device_addr,99); 282 break; 283 case 'k': 284 log_info("USER:\'%c\'", cmd); 285 printf("Deactivate call waiting notification\n"); 286 hfp_hf_deactivate_call_waiting_notification(device_addr); 287 break; 288 case 'K': 289 log_info("USER:\'%c\'", cmd); 290 printf("Activate call waiting notification\n"); 291 hfp_hf_activate_call_waiting_notification(device_addr); 292 break; 293 case 'l': 294 log_info("USER:\'%c\'", cmd); 295 printf("Deactivate calling line notification\n"); 296 hfp_hf_deactivate_calling_line_notification(device_addr); 297 break; 298 case 'L': 299 log_info("USER:\'%c\'", cmd); 300 printf("Activate calling line notification\n"); 301 hfp_hf_activate_calling_line_notification(device_addr); 302 break; 303 case 'm': 304 log_info("USER:\'%c\'", cmd); 305 printf("Deactivate echo canceling and noise reduction\n"); 306 hfp_hf_deactivate_echo_canceling_and_noise_reduction(device_addr); 307 break; 308 case 'M': 309 log_info("USER:\'%c\'", cmd); 310 printf("Activate echo canceling and noise reduction\n"); 311 hfp_hf_activate_echo_canceling_and_noise_reduction(device_addr); 312 break; 313 case 'n': 314 log_info("USER:\'%c\'", cmd); 315 printf("Deactivate voice recognition\n"); 316 hfp_hf_deactivate_voice_recognition_notification(device_addr); 317 break; 318 case 'N': 319 log_info("USER:\'%c\'", cmd); 320 printf("Activate voice recognition\n"); 321 hfp_hf_activate_voice_recognition_notification(device_addr); 322 break; 323 case 'o': 324 log_info("USER:\'%c\'", cmd); 325 printf("Set speaker gain to 0 (minimum)\n"); 326 hfp_hf_set_speaker_gain(device_addr, 0); 327 break; 328 case 'O': 329 log_info("USER:\'%c\'", cmd); 330 printf("Set speaker gain to 9 (default)\n"); 331 hfp_hf_set_speaker_gain(device_addr, 9); 332 break; 333 case 'p': 334 log_info("USER:\'%c\'", cmd); 335 printf("Set speaker gain to 12 (higher)\n"); 336 hfp_hf_set_speaker_gain(device_addr, 12); 337 break; 338 case 'P': 339 log_info("USER:\'%c\'", cmd); 340 printf("Set speaker gain to 15 (maximum)\n"); 341 hfp_hf_set_speaker_gain(device_addr, 15); 342 break; 343 case 'q': 344 log_info("USER:\'%c\'", cmd); 345 printf("Set microphone gain to 0\n"); 346 hfp_hf_set_microphone_gain(device_addr, 0); 347 break; 348 case 'Q': 349 log_info("USER:\'%c\'", cmd); 350 printf("Set microphone gain to 9\n"); 351 hfp_hf_set_microphone_gain(device_addr, 9); 352 break; 353 case 's': 354 log_info("USER:\'%c\'", cmd); 355 printf("Set microphone gain to 12\n"); 356 hfp_hf_set_microphone_gain(device_addr, 12); 357 break; 358 case 'S': 359 log_info("USER:\'%c\'", cmd); 360 printf("Set microphone gain to 15\n"); 361 hfp_hf_set_microphone_gain(device_addr, 15); 362 break; 363 case 'u': 364 log_info("USER:\'%c\'", cmd); 365 printf("Send 'user busy' (Three-Way Call 0)\n"); 366 hfp_hf_user_busy(device_addr); 367 break; 368 case 'U': 369 log_info("USER:\'%c\'", cmd); 370 printf("End active call and accept waiting/held call (Three-Way Call 1)\n"); 371 hfp_hf_end_active_and_accept_other(device_addr); 372 break; 373 case 'v': 374 log_info("USER:\'%c\'", cmd); 375 printf("Swap active call and hold/waiting call (Three-Way Call 2)\n"); 376 hfp_hf_swap_calls(device_addr); 377 break; 378 case 'V': 379 log_info("USER:\'%c\'", cmd); 380 printf("Join hold call (Three-Way Call 3)\n"); 381 hfp_hf_join_held_call(device_addr); 382 break; 383 case 'w': 384 log_info("USER:\'%c\'", cmd); 385 printf("Connect calls (Three-Way Call 4)\n"); 386 hfp_hf_connect_calls(device_addr); 387 break; 388 case 'W': 389 log_info("USER:\'%c\'", cmd); 390 printf("Redial\n"); 391 hfp_hf_redial_last_number(device_addr); 392 break; 393 case 'x': 394 log_info("USER:\'%c\'", cmd); 395 printf("Request phone number for voice tag\n"); 396 hfp_hf_request_phone_number_for_voice_tag(device_addr); 397 break; 398 case 'X': 399 log_info("USER:\'%c\'", cmd); 400 printf("Query current call status\n"); 401 hfp_hf_query_current_call_status(device_addr); 402 break; 403 case 'y': 404 log_info("USER:\'%c\'", cmd); 405 printf("Release call with index 2\n"); 406 hfp_hf_release_call_with_index(device_addr, 2); 407 break; 408 case 'Y': 409 log_info("USER:\'%c\'", cmd); 410 printf("Private consulation with call 2\n"); 411 hfp_hf_private_consultation_with_call(device_addr, 2); 412 break; 413 case '[': 414 log_info("USER:\'%c\'", cmd); 415 printf("Query Response and Hold status (RHH ?)\n"); 416 hfp_hf_rrh_query_status(device_addr); 417 break; 418 case ']': 419 log_info("USER:\'%c\'", cmd); 420 printf("Place call in a response and held state (RHH 0)\n"); 421 hfp_hf_rrh_hold_call(device_addr); 422 break; 423 case '{': 424 log_info("USER:\'%c\'", cmd); 425 printf("Accept held call (RHH 1)\n"); 426 hfp_hf_rrh_accept_held_call(device_addr); 427 break; 428 case '}': 429 log_info("USER:\'%c\'", cmd); 430 printf("Reject held call (RHH 2)\n"); 431 hfp_hf_rrh_reject_held_call(device_addr); 432 break; 433 case '?': 434 log_info("USER:\'%c\'", cmd); 435 printf("Query Subscriber Number\n"); 436 hfp_hf_query_subscriber_number(device_addr); 437 break; 438 case '!': 439 log_info("USER:\'%c\'", cmd); 440 printf("Update HF indicator with assigned number 1 (HFI)\n"); 441 hfp_hf_set_hf_indicator(device_addr, 1, 1); 442 break; 443 444 default: 445 show_usage(); 446 break; 447 } 448 } 449 #endif 450 451 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size){ 452 453 switch (packet_type){ 454 455 case HCI_SCO_DATA_PACKET: 456 sco_demo_receive(event, event_size); 457 break; 458 459 case HCI_EVENT_PACKET: 460 switch (event[0]){ 461 462 case HCI_EVENT_SCO_CAN_SEND_NOW: 463 sco_demo_send(sco_handle); 464 break; 465 466 case HCI_EVENT_HFP_META: 467 switch (event[2]) { 468 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 469 handle = hfp_subevent_service_level_connection_established_get_con_handle(event); 470 printf("Service level connection established.\n\n"); 471 break; 472 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 473 printf("Service level connection released.\n\n"); 474 break; 475 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 476 if (hfp_subevent_audio_connection_established_get_status(event)){ 477 sco_handle = 0; 478 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 479 } else { 480 sco_handle = hfp_subevent_audio_connection_established_get_handle(event); 481 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 482 hci_request_sco_can_send_now_event(); 483 } 484 break; 485 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 486 sco_handle = 0; 487 printf("Audio connection released\n"); 488 break; 489 case HFP_SUBEVENT_COMPLETE: 490 switch (cmd){ 491 case 'd': 492 printf("HFP AG registration status update enabled.\n"); 493 break; 494 case 'e': 495 printf("HFP AG registration status update for individual indicators set.\n"); 496 default: 497 break; 498 } 499 break; 500 case HFP_SUBEVENT_AG_INDICATOR_STATUS_CHANGED: 501 printf("AG_INDICATOR_STATUS_CHANGED, AG indicator '%s' (index: %d) to: %d\n", (const char*) &event[5], event[3], event[4]); 502 break; 503 case HFP_SUBEVENT_NETWORK_OPERATOR_CHANGED: 504 printf("NETWORK_OPERATOR_CHANGED, operator mode: %d, format: %d, name: %s\n", event[3], event[4], (char *) &event[5]); 505 break; 506 case HFP_SUBEVENT_EXTENDED_AUDIO_GATEWAY_ERROR: 507 if (event[4]) 508 printf("EXTENDED_AUDIO_GATEWAY_ERROR_REPORT, status : %d\n", event[3]); 509 break; 510 case HFP_SUBEVENT_RING: 511 printf("** Ring **\n"); 512 break; 513 case HFP_SUBEVENT_NUMBER_FOR_VOICE_TAG: 514 printf("Phone number for voice tag: %s\n", (const char *) &event[3]); 515 break; 516 case HFP_SUBEVENT_SPEAKER_VOLUME: 517 printf("Speaker volume: %u\n", event[3]); 518 break; 519 case HFP_SUBEVENT_MICROPHONE_VOLUME: 520 printf("Microphone volume: %u\n", event[3]); 521 break; 522 default: 523 printf("event not handled %u\n", event[2]); 524 break; 525 } 526 break; 527 528 default: 529 break; 530 } 531 break; 532 533 default: 534 break; 535 } 536 537 538 if (event[0] != HCI_EVENT_HFP_META) return; 539 540 switch (event[2]) { 541 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 542 handle = hfp_subevent_service_level_connection_established_get_con_handle(event); 543 printf("Service level connection established.\n\n"); 544 break; 545 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 546 printf("Service level connection released.\n\n"); 547 break; 548 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 549 if (hfp_subevent_audio_connection_established_get_status(event)){ 550 sco_handle = 0; 551 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 552 } else { 553 sco_handle = hfp_subevent_audio_connection_established_get_handle(event); 554 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 555 hci_request_sco_can_send_now_event(); 556 } 557 break; 558 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 559 sco_handle = 0; 560 printf("Audio connection released\n"); 561 break; 562 case HFP_SUBEVENT_COMPLETE: 563 switch (cmd){ 564 case 'd': 565 printf("HFP AG registration status update enabled.\n"); 566 break; 567 case 'e': 568 printf("HFP AG registration status update for individual indicators set.\n"); 569 default: 570 break; 571 } 572 break; 573 case HFP_SUBEVENT_AG_INDICATOR_STATUS_CHANGED: 574 printf("AG_INDICATOR_STATUS_CHANGED, AG indicator '%s' (index: %d) to: %d\n", (const char*) &event[5], event[3], event[4]); 575 break; 576 case HFP_SUBEVENT_NETWORK_OPERATOR_CHANGED: 577 printf("NETWORK_OPERATOR_CHANGED, operator mode: %d, format: %d, name: %s\n", event[3], event[4], (char *) &event[5]); 578 break; 579 case HFP_SUBEVENT_EXTENDED_AUDIO_GATEWAY_ERROR: 580 if (event[4]) 581 printf("EXTENDED_AUDIO_GATEWAY_ERROR_REPORT, status : %d\n", event[3]); 582 break; 583 case HFP_SUBEVENT_RING: 584 printf("** Ring **\n"); 585 break; 586 case HFP_SUBEVENT_NUMBER_FOR_VOICE_TAG: 587 printf("Phone number for voice tag: %s\n", (const char *) &event[3]); 588 break; 589 case HFP_SUBEVENT_SPEAKER_VOLUME: 590 printf("Speaker volume: %u\n", event[3]); 591 break; 592 case HFP_SUBEVENT_MICROPHONE_VOLUME: 593 printf("Microphone volume: %u\n", event[3]); 594 break; 595 default: 596 printf("event not handled %u\n", event[2]); 597 break; 598 } 599 } 600 601 /* @section Main Application Setup 602 * 603 * @text Listing MainConfiguration shows main application code. 604 * To run a HFP HF service you need to initialize the SDP, and to create and register HFP HF record with it. 605 * The packet_handler is used for sending commands to the HFP AG. It also receives the HFP AG's answers. 606 * The stdin_process callback allows for sending commands to the HFP AG. 607 * At the end the Bluetooth stack is started. 608 */ 609 610 /* LISTING_START(MainConfiguration): Setup HFP Hands-Free unit */ 611 int btstack_main(int argc, const char * argv[]); 612 int btstack_main(int argc, const char * argv[]){ 613 614 sco_demo_init(); 615 616 gap_discoverable_control(1); 617 618 // HFP AG address is hardcoded, please change it 619 // init L2CAP 620 l2cap_init(); 621 rfcomm_init(); 622 sdp_init(); 623 624 hfp_hf_init(rfcomm_channel_nr); 625 hfp_hf_init_supported_features(438 | (1<<HFP_HFSF_ESCO_S4) | (1<<HFP_HFSF_EC_NR_FUNCTION)); 626 hfp_hf_init_hf_indicators(sizeof(indicators)/sizeof(uint16_t), indicators); 627 hfp_hf_init_codecs(sizeof(codecs), codecs); 628 629 hfp_hf_register_packet_handler(packet_handler); 630 hci_register_sco_packet_handler(&packet_handler); 631 632 memset(hfp_service_buffer, 0, sizeof(hfp_service_buffer)); 633 hfp_hf_create_sdp_record(hfp_service_buffer, 0x10001, rfcomm_channel_nr, hfp_hf_service_name, 0); 634 printf("SDP service record size: %u\n", de_get_len(hfp_service_buffer)); 635 sdp_register_service(hfp_service_buffer); 636 637 #ifdef HAVE_POSIX_STDIN 638 btstack_stdin_setup(stdin_process); 639 #endif 640 // turn on! 641 hci_power_control(HCI_POWER_ON); 642 return 0; 643 } 644 /* LISTING_END */ 645 /* EXAMPLE_END */ 646