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 "btstack_sbc_decoder.h" 63 64 #include "sco_demo_util.h" 65 #ifdef HAVE_POSIX_STDIN 66 #include "stdin_support.h" 67 #endif 68 69 uint8_t hfp_service_buffer[150]; 70 const uint8_t rfcomm_channel_nr = 1; 71 const char hfp_hf_service_name[] = "BTstack HFP HF Demo"; 72 73 #ifdef HAVE_POSIX_STDIN 74 static bd_addr_t device_addr = {0x80,0xbe,0x05,0xd5,0x28,0x48}; 75 // 80:BE:05:D5:28:48 76 // prototypes 77 static void show_usage(void); 78 #endif 79 static uint16_t handle = -1; 80 static hci_con_handle_t sco_handle; 81 static uint8_t codecs[] = {HFP_CODEC_CVSD, HFP_CODEC_MSBC}; 82 static uint16_t indicators[1] = {0x01}; 83 static uint8_t negotiated_codec = HFP_CODEC_CVSD; 84 char cmd; 85 86 87 #ifdef HAVE_POSIX_STDIN 88 89 // Testig User Interface 90 static void show_usage(void){ 91 bd_addr_t iut_address; 92 gap_local_bd_addr(iut_address); 93 94 printf("\n--- Bluetooth HFP Hands-Free (HF) unit Test Console %s ---\n", bd_addr_to_str(iut_address)); 95 printf("---\n"); 96 97 printf("a - establish SLC connection to device %s\n", bd_addr_to_str(device_addr)); 98 printf("A - release SLC connection to device\n"); 99 100 printf("b - establish Audio connection\n"); 101 printf("B - release Audio connection\n"); 102 103 printf("c - disable registration status update for all AG indicators\n"); 104 printf("C - enable registration status update for all AG indicators\n"); 105 106 printf("d - query network operator.\n"); 107 printf("D - set HFP AG registration status update for individual indicators (IIA)\n"); 108 109 printf("e - disable reporting of the extended AG error result code\n"); 110 printf("E - enable reporting of the extended AG error result code\n"); 111 112 printf("f - answer incoming call\n"); 113 printf("F - Hangup call\n"); 114 115 printf("g - query network operator name\n"); 116 printf("G - reject incoming call\n"); 117 118 printf("i - dial 1234567\n"); 119 printf("I - dial 7654321\n"); 120 121 printf("j - dial #1\n"); 122 printf("J - dial #99\n"); 123 124 printf("k - deactivate call waiting notification\n"); 125 printf("K - activate call waiting notification\n"); 126 127 printf("l - deactivate calling line notification\n"); 128 printf("L - activate calling line notification\n"); 129 130 printf("m - deactivate echo canceling and noise reduction\n"); 131 printf("M - activate echo canceling and noise reduction\n"); 132 133 printf("n - deactivate voice recognition\n"); 134 printf("N - activate voice recognition\n"); 135 136 printf("o - Set speaker volume to 0 (minimum)\n"); 137 printf("O - Set speaker volume to 9 (default)\n"); 138 printf("p - Set speaker volume to 12 (higher)\n"); 139 printf("P - Set speaker volume to 15 (maximum)\n"); 140 141 printf("q - Set microphone gain to 0 (minimum)\n"); 142 printf("Q - Set microphone gain to 9 (default)\n"); 143 printf("s - Set microphone gain to 12 (higher)\n"); 144 printf("S - Set microphone gain to 15 (maximum)\n"); 145 146 printf("t - terminate connection\n"); 147 148 printf("u - send 'user busy' (TWC 0)\n"); 149 printf("U - end active call and accept other call' (TWC 1)\n"); 150 printf("v - Swap active call and hold/waiting call (TWC 2)\n"); 151 printf("V - Join held call (TWC 3)\n"); 152 printf("w - Connect calls (TWC 4)\n"); 153 printf("W - redial\n"); 154 155 printf("0123456789#*-+ - send DTMF dial tones\n"); 156 157 printf("x - request phone number for voice tag\n"); 158 printf("X - current call status (ECS)\n"); 159 printf("y - release call with index 2 (ECC)\n"); 160 printf("Y - private consulation with call 2(ECC)\n"); 161 162 printf("[ - Query Response and Hold status (RHH ?)\n"); 163 printf("] - Place call in a response and held state(RHH 0)\n"); 164 printf("{ - Accept held call(RHH 1)\n"); 165 printf("} - Reject held call(RHH 2)\n"); 166 167 printf("? - Query Subscriber Number (NUM)\n"); 168 169 printf("! - Update HF indicator with assigned number 1 (HFI)\n"); 170 171 printf("---\n"); 172 printf("Ctrl-c - exit\n"); 173 printf("---\n"); 174 } 175 176 static void stdin_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type){ 177 read(ds->fd, &cmd, 1); 178 179 if (cmd >= '0' && cmd <= '9'){ 180 printf("DTMF Code: %c\n", cmd); 181 hfp_hf_send_dtmf_code(device_addr, cmd); 182 return; 183 } 184 185 switch (cmd){ 186 case '#': 187 case '-': 188 case '+': 189 case '*': 190 log_info("USER:\'%c\'", cmd); 191 printf("DTMF Code: %c\n", cmd); 192 hfp_hf_send_dtmf_code(device_addr, cmd); 193 break; 194 case 'a': 195 log_info("USER:\'%c\'", cmd); 196 printf("Establish Service level connection to device with Bluetooth address %s...\n", bd_addr_to_str(device_addr)); 197 hfp_hf_establish_service_level_connection(device_addr); 198 break; 199 case 'A': 200 log_info("USER:\'%c\'", cmd); 201 printf("Release Service level connection.\n"); 202 hfp_hf_release_service_level_connection(device_addr); 203 break; 204 case 'b': 205 log_info("USER:\'%c\'", cmd); 206 printf("Establish Audio connection to device with Bluetooth address %s...\n", bd_addr_to_str(device_addr)); 207 hfp_hf_establish_audio_connection(device_addr); 208 break; 209 case 'B': 210 log_info("USER:\'%c\'", cmd); 211 printf("Release Audio service level connection.\n"); 212 hfp_hf_release_audio_connection(device_addr); 213 break; 214 case 'C': 215 log_info("USER:\'%c\'", cmd); 216 printf("Enable registration status update for all AG indicators.\n"); 217 hfp_hf_enable_status_update_for_all_ag_indicators(device_addr); 218 case 'c': 219 log_info("USER:\'%c\'", cmd); 220 printf("Disable registration status update for all AG indicators.\n"); 221 hfp_hf_disable_status_update_for_all_ag_indicators(device_addr); 222 break; 223 case 'D': 224 log_info("USER:\'%c\'", cmd); 225 printf("Set HFP AG registration status update for individual indicators (0111111).\n"); 226 hfp_hf_set_status_update_for_individual_ag_indicators(device_addr, 63); 227 break; 228 case 'd': 229 log_info("USER:\'%c\'", cmd); 230 printf("Query network operator.\n"); 231 hfp_hf_query_operator_selection(device_addr); 232 break; 233 case 'E': 234 log_info("USER:\'%c\'", cmd); 235 printf("Enable reporting of the extended AG error result code.\n"); 236 hfp_hf_enable_report_extended_audio_gateway_error_result_code(device_addr); 237 break; 238 case 'e': 239 log_info("USER:\'%c\'", cmd); 240 printf("Disable reporting of the extended AG error result code.\n"); 241 hfp_hf_disable_report_extended_audio_gateway_error_result_code(device_addr); 242 break; 243 case 'f': 244 log_info("USER:\'%c\'", cmd); 245 printf("Answer incoming call.\n"); 246 hfp_hf_answer_incoming_call(device_addr); 247 break; 248 case 'F': 249 log_info("USER:\'%c\'", cmd); 250 printf("Hangup call.\n"); 251 hfp_hf_terminate_call(device_addr); 252 break; 253 case 'G': 254 log_info("USER:\'%c\'", cmd); 255 printf("Reject incoming call.\n"); 256 hfp_hf_reject_incoming_call(device_addr); 257 break; 258 case 'g': 259 log_info("USER:\'%c\'", cmd); 260 printf("Query operator.\n"); 261 hfp_hf_query_operator_selection(device_addr); 262 break; 263 case 't': 264 log_info("USER:\'%c\'", cmd); 265 printf("Terminate HCI connection.\n"); 266 gap_disconnect(handle); 267 break; 268 case 'i': 269 log_info("USER:\'%c\'", cmd); 270 printf("Dial 1234567\n"); 271 hfp_hf_dial_number(device_addr, "1234567"); 272 break; 273 case 'I': 274 log_info("USER:\'%c\'", cmd); 275 printf("Dial 7654321\n"); 276 hfp_hf_dial_number(device_addr, "7654321"); 277 break; 278 case 'j': 279 log_info("USER:\'%c\'", cmd); 280 printf("Dial #1\n"); 281 hfp_hf_dial_memory(device_addr,1); 282 break; 283 case 'J': 284 log_info("USER:\'%c\'", cmd); 285 printf("Dial #99\n"); 286 hfp_hf_dial_memory(device_addr,99); 287 break; 288 case 'k': 289 log_info("USER:\'%c\'", cmd); 290 printf("Deactivate call waiting notification\n"); 291 hfp_hf_deactivate_call_waiting_notification(device_addr); 292 break; 293 case 'K': 294 log_info("USER:\'%c\'", cmd); 295 printf("Activate call waiting notification\n"); 296 hfp_hf_activate_call_waiting_notification(device_addr); 297 break; 298 case 'l': 299 log_info("USER:\'%c\'", cmd); 300 printf("Deactivate calling line notification\n"); 301 hfp_hf_deactivate_calling_line_notification(device_addr); 302 break; 303 case 'L': 304 log_info("USER:\'%c\'", cmd); 305 printf("Activate calling line notification\n"); 306 hfp_hf_activate_calling_line_notification(device_addr); 307 break; 308 case 'm': 309 log_info("USER:\'%c\'", cmd); 310 printf("Deactivate echo canceling and noise reduction\n"); 311 hfp_hf_deactivate_echo_canceling_and_noise_reduction(device_addr); 312 break; 313 case 'M': 314 log_info("USER:\'%c\'", cmd); 315 printf("Activate echo canceling and noise reduction\n"); 316 hfp_hf_activate_echo_canceling_and_noise_reduction(device_addr); 317 break; 318 case 'n': 319 log_info("USER:\'%c\'", cmd); 320 printf("Deactivate voice recognition\n"); 321 hfp_hf_deactivate_voice_recognition_notification(device_addr); 322 break; 323 case 'N': 324 log_info("USER:\'%c\'", cmd); 325 printf("Activate voice recognition %s\n", bd_addr_to_str(device_addr)); 326 hfp_hf_activate_voice_recognition_notification(device_addr); 327 break; 328 case 'o': 329 log_info("USER:\'%c\'", cmd); 330 printf("Set speaker gain to 0 (minimum)\n"); 331 hfp_hf_set_speaker_gain(device_addr, 0); 332 break; 333 case 'O': 334 log_info("USER:\'%c\'", cmd); 335 printf("Set speaker gain to 9 (default)\n"); 336 hfp_hf_set_speaker_gain(device_addr, 9); 337 break; 338 case 'p': 339 log_info("USER:\'%c\'", cmd); 340 printf("Set speaker gain to 12 (higher)\n"); 341 hfp_hf_set_speaker_gain(device_addr, 12); 342 break; 343 case 'P': 344 log_info("USER:\'%c\'", cmd); 345 printf("Set speaker gain to 15 (maximum)\n"); 346 hfp_hf_set_speaker_gain(device_addr, 15); 347 break; 348 case 'q': 349 log_info("USER:\'%c\'", cmd); 350 printf("Set microphone gain to 0\n"); 351 hfp_hf_set_microphone_gain(device_addr, 0); 352 break; 353 case 'Q': 354 log_info("USER:\'%c\'", cmd); 355 printf("Set microphone gain to 9\n"); 356 hfp_hf_set_microphone_gain(device_addr, 9); 357 break; 358 case 's': 359 log_info("USER:\'%c\'", cmd); 360 printf("Set microphone gain to 12\n"); 361 hfp_hf_set_microphone_gain(device_addr, 12); 362 break; 363 case 'S': 364 log_info("USER:\'%c\'", cmd); 365 printf("Set microphone gain to 15\n"); 366 hfp_hf_set_microphone_gain(device_addr, 15); 367 break; 368 case 'u': 369 log_info("USER:\'%c\'", cmd); 370 printf("Send 'user busy' (Three-Way Call 0)\n"); 371 hfp_hf_user_busy(device_addr); 372 break; 373 case 'U': 374 log_info("USER:\'%c\'", cmd); 375 printf("End active call and accept waiting/held call (Three-Way Call 1)\n"); 376 hfp_hf_end_active_and_accept_other(device_addr); 377 break; 378 case 'v': 379 log_info("USER:\'%c\'", cmd); 380 printf("Swap active call and hold/waiting call (Three-Way Call 2)\n"); 381 hfp_hf_swap_calls(device_addr); 382 break; 383 case 'V': 384 log_info("USER:\'%c\'", cmd); 385 printf("Join hold call (Three-Way Call 3)\n"); 386 hfp_hf_join_held_call(device_addr); 387 break; 388 case 'w': 389 log_info("USER:\'%c\'", cmd); 390 printf("Connect calls (Three-Way Call 4)\n"); 391 hfp_hf_connect_calls(device_addr); 392 break; 393 case 'W': 394 log_info("USER:\'%c\'", cmd); 395 printf("Redial\n"); 396 hfp_hf_redial_last_number(device_addr); 397 break; 398 case 'x': 399 log_info("USER:\'%c\'", cmd); 400 printf("Request phone number for voice tag\n"); 401 hfp_hf_request_phone_number_for_voice_tag(device_addr); 402 break; 403 case 'X': 404 log_info("USER:\'%c\'", cmd); 405 printf("Query current call status\n"); 406 hfp_hf_query_current_call_status(device_addr); 407 break; 408 case 'y': 409 log_info("USER:\'%c\'", cmd); 410 printf("Release call with index 2\n"); 411 hfp_hf_release_call_with_index(device_addr, 2); 412 break; 413 case 'Y': 414 log_info("USER:\'%c\'", cmd); 415 printf("Private consulation with call 2\n"); 416 hfp_hf_private_consultation_with_call(device_addr, 2); 417 break; 418 case '[': 419 log_info("USER:\'%c\'", cmd); 420 printf("Query Response and Hold status (RHH ?)\n"); 421 hfp_hf_rrh_query_status(device_addr); 422 break; 423 case ']': 424 log_info("USER:\'%c\'", cmd); 425 printf("Place call in a response and held state (RHH 0)\n"); 426 hfp_hf_rrh_hold_call(device_addr); 427 break; 428 case '{': 429 log_info("USER:\'%c\'", cmd); 430 printf("Accept held call (RHH 1)\n"); 431 hfp_hf_rrh_accept_held_call(device_addr); 432 break; 433 case '}': 434 log_info("USER:\'%c\'", cmd); 435 printf("Reject held call (RHH 2)\n"); 436 hfp_hf_rrh_reject_held_call(device_addr); 437 break; 438 case '?': 439 log_info("USER:\'%c\'", cmd); 440 printf("Query Subscriber Number\n"); 441 hfp_hf_query_subscriber_number(device_addr); 442 break; 443 case '!': 444 log_info("USER:\'%c\'", cmd); 445 printf("Update HF indicator with assigned number 1 (HFI)\n"); 446 hfp_hf_set_hf_indicator(device_addr, 1, 1); 447 break; 448 449 default: 450 show_usage(); 451 break; 452 } 453 } 454 #endif 455 456 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size){ 457 458 switch (packet_type){ 459 460 case HCI_SCO_DATA_PACKET: 461 sco_demo_receive(event, event_size); 462 break; 463 464 case HCI_EVENT_PACKET: 465 switch (event[0]){ 466 case HCI_EVENT_SCO_CAN_SEND_NOW: 467 sco_demo_send(sco_handle); 468 break; 469 470 case HCI_EVENT_HFP_META: 471 switch (event[2]) { 472 case HFP_SUBEVENT_CODECS_CONNECTION_COMPLETE: 473 negotiated_codec = hfp_subevent_codecs_connection_complete_get_negotiated_codec(event); 474 printf("Codec connection established with codec 0x%02x.\n", negotiated_codec); 475 sco_demo_set_codec(negotiated_codec); 476 break; 477 478 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 479 handle = hfp_subevent_service_level_connection_established_get_con_handle(event); 480 hfp_subevent_service_level_connection_established_get_bd_addr(event, device_addr); 481 printf("Service level connection established %s.\n\n", bd_addr_to_str(device_addr)); 482 break; 483 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 484 printf("Service level connection released.\n\n"); 485 break; 486 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 487 if (hfp_subevent_audio_connection_established_get_status(event)){ 488 sco_handle = 0; 489 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 490 } else { 491 sco_handle = hfp_subevent_audio_connection_established_get_handle(event); 492 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 493 hci_request_sco_can_send_now_event(); 494 } 495 break; 496 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 497 sco_handle = 0; 498 printf("Audio connection released\n"); 499 sco_demo_close(); 500 break; 501 case HFP_SUBEVENT_COMPLETE: 502 switch (cmd){ 503 case 'd': 504 printf("HFP AG registration status update enabled.\n"); 505 break; 506 case 'e': 507 printf("HFP AG registration status update for individual indicators set.\n"); 508 default: 509 break; 510 } 511 break; 512 case HFP_SUBEVENT_AG_INDICATOR_STATUS_CHANGED: 513 printf("AG_INDICATOR_STATUS_CHANGED, AG indicator '%s' (index: %d) to: %d\n", (const char*) &event[5], event[3], event[4]); 514 break; 515 case HFP_SUBEVENT_NETWORK_OPERATOR_CHANGED: 516 printf("NETWORK_OPERATOR_CHANGED, operator mode: %d, format: %d, name: %s\n", event[3], event[4], (char *) &event[5]); 517 break; 518 case HFP_SUBEVENT_EXTENDED_AUDIO_GATEWAY_ERROR: 519 if (event[4]) 520 printf("EXTENDED_AUDIO_GATEWAY_ERROR_REPORT, status : %d\n", event[3]); 521 break; 522 case HFP_SUBEVENT_RING: 523 printf("** Ring **\n"); 524 break; 525 case HFP_SUBEVENT_NUMBER_FOR_VOICE_TAG: 526 printf("Phone number for voice tag: %s\n", (const char *) &event[3]); 527 break; 528 case HFP_SUBEVENT_SPEAKER_VOLUME: 529 printf("Speaker volume: %u\n", event[3]); 530 break; 531 case HFP_SUBEVENT_MICROPHONE_VOLUME: 532 printf("Microphone volume: %u\n", event[3]); 533 break; 534 default: 535 printf("event not handled %u\n", event[2]); 536 break; 537 } 538 break; 539 540 default: 541 break; 542 } 543 break; 544 545 default: 546 break; 547 } 548 549 if (event[0] != HCI_EVENT_HFP_META) return; 550 551 switch (event[2]) { 552 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 553 handle = hfp_subevent_service_level_connection_established_get_con_handle(event); 554 printf("Service level connection established.\n\n"); 555 break; 556 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 557 printf("Service level connection released.\n\n"); 558 break; 559 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 560 printf("HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED\n"); 561 if (hfp_subevent_audio_connection_established_get_status(event)){ 562 sco_handle = 0; 563 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 564 } else { 565 sco_handle = hfp_subevent_audio_connection_established_get_handle(event); 566 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 567 hci_request_sco_can_send_now_event(); 568 } 569 break; 570 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 571 sco_handle = 0; 572 printf("Audio connection released\n"); 573 break; 574 case HFP_SUBEVENT_COMPLETE: 575 switch (cmd){ 576 case 'd': 577 printf("HFP AG registration status update enabled.\n"); 578 break; 579 case 'e': 580 printf("HFP AG registration status update for individual indicators set.\n"); 581 default: 582 break; 583 } 584 break; 585 case HFP_SUBEVENT_AG_INDICATOR_STATUS_CHANGED: 586 printf("AG_INDICATOR_STATUS_CHANGED, AG indicator '%s' (index: %d) to: %d\n", (const char*) &event[5], event[3], event[4]); 587 break; 588 case HFP_SUBEVENT_NETWORK_OPERATOR_CHANGED: 589 printf("NETWORK_OPERATOR_CHANGED, operator mode: %d, format: %d, name: %s\n", event[3], event[4], (char *) &event[5]); 590 break; 591 case HFP_SUBEVENT_EXTENDED_AUDIO_GATEWAY_ERROR: 592 if (event[4]) 593 printf("EXTENDED_AUDIO_GATEWAY_ERROR_REPORT, status : %d\n", event[3]); 594 break; 595 case HFP_SUBEVENT_RING: 596 printf("** Ring **\n"); 597 break; 598 case HFP_SUBEVENT_NUMBER_FOR_VOICE_TAG: 599 printf("Phone number for voice tag: %s\n", (const char *) &event[3]); 600 break; 601 case HFP_SUBEVENT_SPEAKER_VOLUME: 602 printf("Speaker volume: %u\n", event[3]); 603 break; 604 case HFP_SUBEVENT_MICROPHONE_VOLUME: 605 printf("Microphone volume: %u\n", event[3]); 606 break; 607 default: 608 printf("event not handled 0x%02x\n", event[2]); 609 break; 610 } 611 } 612 613 /* @section Main Application Setup 614 * 615 * @text Listing MainConfiguration shows main application code. 616 * To run a HFP HF service you need to initialize the SDP, and to create and register HFP HF record with it. 617 * The packet_handler is used for sending commands to the HFP AG. It also receives the HFP AG's answers. 618 * The stdin_process callback allows for sending commands to the HFP AG. 619 * At the end the Bluetooth stack is started. 620 */ 621 622 /* LISTING_START(MainConfiguration): Setup HFP Hands-Free unit */ 623 int btstack_main(int argc, const char * argv[]); 624 int btstack_main(int argc, const char * argv[]){ 625 sco_demo_init(); 626 gap_discoverable_control(1); 627 628 // HFP AG address is hardcoded, please change it 629 // init L2CAP 630 l2cap_init(); 631 rfcomm_init(); 632 sdp_init(); 633 634 hfp_hf_init(rfcomm_channel_nr); 635 hfp_hf_init_supported_features(438 | (1<<HFP_HFSF_CODEC_NEGOTIATION) |(1<<HFP_HFSF_ESCO_S4) | (1<<HFP_HFSF_EC_NR_FUNCTION)); 636 hfp_hf_init_hf_indicators(sizeof(indicators)/sizeof(uint16_t), indicators); 637 hfp_hf_init_codecs(sizeof(codecs), codecs); 638 639 hfp_hf_register_packet_handler(packet_handler); 640 hci_register_sco_packet_handler(&packet_handler); 641 642 memset(hfp_service_buffer, 0, sizeof(hfp_service_buffer)); 643 hfp_hf_create_sdp_record(hfp_service_buffer, 0x10001, rfcomm_channel_nr, hfp_hf_service_name, 0); 644 printf("SDP service record size: %u\n", de_get_len(hfp_service_buffer)); 645 sdp_register_service(hfp_service_buffer); 646 gap_set_class_of_device(0x200408); 647 648 #ifdef HAVE_POSIX_STDIN 649 btstack_stdin_setup(stdin_process); 650 #endif 651 // turn on! 652 hci_power_control(HCI_POWER_ON); 653 return 0; 654 } 655 /* LISTING_END */ 656 /* EXAMPLE_END */ 657