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 = "00:21:3C:AC:F7:38"; 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 Regocnition | 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 switch (cmd){ 184 case 'a': 185 log_info("USER:\'%c\'", cmd); 186 printf("Establish HFP service level connection to %s...\n", bd_addr_to_str(device_addr)); 187 hfp_ag_establish_service_level_connection(device_addr); 188 break; 189 case 'A': 190 log_info("USER:\'%c\'", cmd); 191 printf("Release HFP service level connection.\n"); 192 hfp_ag_release_service_level_connection(acl_handle); 193 break; 194 case 'Z': 195 log_info("USER:\'%c\'", cmd); 196 printf("Release HFP service level connection to %s...\n", bd_addr_to_str(device_addr)); 197 hfp_ag_release_service_level_connection(acl_handle); 198 break; 199 case 'b': 200 log_info("USER:\'%c\'", cmd); 201 printf("Establish Audio connection %s...\n", bd_addr_to_str(device_addr)); 202 hfp_ag_establish_audio_connection(acl_handle); 203 break; 204 case 'B': 205 log_info("USER:\'%c\'", cmd); 206 printf("Release Audio connection.\n"); 207 hfp_ag_release_audio_connection(acl_handle); 208 break; 209 case 'c': 210 log_info("USER:\'%c\'", cmd); 211 printf("Simulate incoming call from 1234567\n"); 212 hfp_ag_set_clip(129, "1234567"); 213 hfp_ag_incoming_call(); 214 break; 215 case 'D': 216 printf("Deleting all link keys\n"); 217 gap_delete_all_link_keys(); 218 break; 219 case 'm': 220 log_info("USER:\'%c\'", cmd); 221 printf("Simulate incoming call from 7654321\n"); 222 hfp_ag_set_clip(129, "7654321"); 223 hfp_ag_incoming_call(); 224 break; 225 case 'C': 226 log_info("USER:\'%c\'", cmd); 227 printf("Simulate terminate call\n"); 228 hfp_ag_call_dropped(); 229 break; 230 case 'd': 231 log_info("USER:\'%c\'", cmd); 232 printf("Report AG failure\n"); 233 hfp_ag_report_extended_audio_gateway_error_result_code(acl_handle, HFP_CME_ERROR_AG_FAILURE); 234 break; 235 case 'e': 236 log_info("USER:\'%c\'", cmd); 237 printf("Answer call on AG\n"); 238 hfp_ag_answer_incoming_call(); 239 break; 240 case 'E': 241 log_info("USER:\'%c\'", cmd); 242 printf("Reject call on AG\n"); 243 hfp_ag_terminate_call(); 244 break; 245 case 'f': 246 log_info("USER:\'%c\'", cmd); 247 printf("Disable cellular network\n"); 248 hfp_ag_set_registration_status(0); 249 break; 250 case 'F': 251 log_info("USER:\'%c\'", cmd); 252 printf("Enable cellular network\n"); 253 hfp_ag_set_registration_status(1); 254 break; 255 case 'g': 256 log_info("USER:\'%c\'", cmd); 257 printf("Set signal strength to 0\n"); 258 hfp_ag_set_signal_strength(0); 259 break; 260 case 'G': 261 log_info("USER:\'%c\'", cmd); 262 printf("Set signal strength to 5\n"); 263 hfp_ag_set_signal_strength(5); 264 break; 265 case 'h': 266 log_info("USER:\'%c\'", cmd); 267 printf("Disable roaming\n"); 268 hfp_ag_set_roaming_status(0); 269 break; 270 case 'H': 271 log_info("USER:\'%c\'", cmd); 272 printf("Enable roaming\n"); 273 hfp_ag_set_roaming_status(1); 274 break; 275 case 'i': 276 log_info("USER:\'%c\'", cmd); 277 printf("Set battery level to 3\n"); 278 hfp_ag_set_battery_level(3); 279 break; 280 case 'I': 281 log_info("USER:\'%c\'", cmd); 282 printf("Set battery level to 5\n"); 283 hfp_ag_set_battery_level(5); 284 break; 285 case 'j': 286 log_info("USER:\'%c\'", cmd); 287 printf("Answering call on remote side\n"); 288 hfp_ag_outgoing_call_established(); 289 break; 290 case 'r': 291 log_info("USER:\'%c\'", cmd); 292 printf("Disable in-band ring tone\n"); 293 hfp_ag_set_use_in_band_ring_tone(0); 294 break; 295 case 'k': 296 log_info("USER:\'%c\'", cmd); 297 printf("Memory 1 cleared\n"); 298 memory_1_enabled = 0; 299 break; 300 case 'K': 301 log_info("USER:\'%c\'", cmd); 302 printf("Memory 1 set\n"); 303 memory_1_enabled = 1; 304 break; 305 case 'l': 306 log_info("USER:\'%c\'", cmd); 307 printf("Last dialed number cleared\n"); 308 hfp_ag_clear_last_dialed_number(); 309 break; 310 case 'L': 311 log_info("USER:\'%c\'", cmd); 312 printf("Outgoing call connected, ringing\n"); 313 hfp_ag_outgoing_call_ringing(); 314 break; 315 case 'n': 316 log_info("USER:\'%c\'", cmd); 317 printf("Disable Voice Recognition\n"); 318 hfp_ag_activate_voice_recognition(acl_handle, 0); 319 break; 320 case 'N': 321 log_info("USER:\'%c\'", cmd); 322 printf("Enable Voice Recognition\n"); 323 hfp_ag_activate_voice_recognition(acl_handle, 1); 324 break; 325 case 'o': 326 log_info("USER:\'%c\'", cmd); 327 printf("Set speaker gain to 0 (minimum)\n"); 328 hfp_ag_set_speaker_gain(acl_handle, 0); 329 break; 330 case 'O': 331 log_info("USER:\'%c\'", cmd); 332 printf("Set speaker gain to 9 (default)\n"); 333 hfp_ag_set_speaker_gain(acl_handle, 9); 334 break; 335 case 'p': 336 log_info("USER:\'%c\'", cmd); 337 printf("Set speaker gain to 12 (higher)\n"); 338 hfp_ag_set_speaker_gain(acl_handle, 12); 339 break; 340 case 'P': 341 log_info("USER:\'%c\'", cmd); 342 printf("Set speaker gain to 15 (maximum)\n"); 343 hfp_ag_set_speaker_gain(acl_handle, 15); 344 break; 345 case 'q': 346 log_info("USER:\'%c\'", cmd); 347 printf("Set microphone gain to 0\n"); 348 hfp_ag_set_microphone_gain(acl_handle, 0); 349 break; 350 case 'Q': 351 log_info("USER:\'%c\'", cmd); 352 printf("Set microphone gain to 9\n"); 353 hfp_ag_set_microphone_gain(acl_handle, 9); 354 break; 355 case 's': 356 log_info("USER:\'%c\'", cmd); 357 printf("Set microphone gain to 12\n"); 358 hfp_ag_set_microphone_gain(acl_handle, 12); 359 break; 360 case 'S': 361 log_info("USER:\'%c\'", cmd); 362 printf("Set microphone gain to 15\n"); 363 hfp_ag_set_microphone_gain(acl_handle, 15); 364 break; 365 case 'R': 366 log_info("USER:\'%c\'", cmd); 367 printf("Enable in-band ring tone\n"); 368 hfp_ag_set_use_in_band_ring_tone(1); 369 break; 370 case 't': 371 log_info("USER:\'%c\'", cmd); 372 printf("Terminate HCI connection. 0x%2x\n", acl_handle); 373 gap_disconnect(acl_handle); 374 break; 375 case 'u': 376 log_info("USER:\'%c\'", cmd); 377 printf("Join held call\n"); 378 hfp_ag_join_held_call(); 379 break; 380 case 'v': 381 printf("Start scanning...\n"); 382 gap_inquiry_start(INQUIRY_INTERVAL); 383 break; 384 case 'w': 385 log_info("USER:\'%c\'", cmd); 386 printf("AG: Put incoming call on hold (Response and Hold)\n"); 387 hfp_ag_hold_incoming_call(); 388 break; 389 case 'x': 390 log_info("USER:\'%c\'", cmd); 391 printf("AG: Accept held incoming call (Response and Hold)\n"); 392 hfp_ag_accept_held_incoming_call(); 393 break; 394 case 'X': 395 log_info("USER:\'%c\'", cmd); 396 printf("AG: Reject held incoming call (Response and Hold)\n"); 397 hfp_ag_reject_held_incoming_call(); 398 break; 399 default: 400 show_usage(); 401 break; 402 } 403 } 404 #endif 405 406 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size){ 407 UNUSED(channel); 408 bd_addr_t addr; 409 uint8_t status; 410 switch (packet_type){ 411 case HCI_EVENT_PACKET: 412 switch(hci_event_packet_get_type(event)){ 413 #ifndef HAVE_BTSTACK_STDIN 414 case BTSTACK_EVENT_STATE: 415 if (btstack_event_state_get_state(event) != HCI_STATE_WORKING) break; 416 printf("Establish HFP AG service level connection to %s...\n", bd_addr_to_str(device_addr)); 417 hfp_ag_establish_service_level_connection(device_addr); 418 break; 419 #endif 420 case GAP_EVENT_INQUIRY_RESULT: 421 gap_event_inquiry_result_get_bd_addr(event, addr); 422 // print info 423 printf("Device found: %s ", bd_addr_to_str(addr)); 424 printf("with COD: 0x%06x, ", (unsigned int) gap_event_inquiry_result_get_class_of_device(event)); 425 if (gap_event_inquiry_result_get_rssi_available(event)){ 426 printf(", rssi %d dBm", (int8_t) gap_event_inquiry_result_get_rssi(event)); 427 } 428 if (gap_event_inquiry_result_get_name_available(event)){ 429 char name_buffer[240]; 430 int name_len = gap_event_inquiry_result_get_name_len(event); 431 memcpy(name_buffer, gap_event_inquiry_result_get_name(event), name_len); 432 name_buffer[name_len] = 0; 433 printf(", name '%s'", name_buffer); 434 } 435 printf("\n"); 436 break; 437 case GAP_EVENT_INQUIRY_COMPLETE: 438 printf("Inquiry scan complete.\n"); 439 break; 440 case HCI_EVENT_SCO_CAN_SEND_NOW: 441 sco_demo_send(sco_handle); 442 break; 443 case HCI_EVENT_COMMAND_COMPLETE: 444 if (HCI_EVENT_IS_COMMAND_COMPLETE(event, hci_read_local_supported_features)){ 445 dump_supported_codecs(); 446 } 447 break; 448 default: 449 break; 450 } 451 452 if (hci_event_packet_get_type(event) != HCI_EVENT_HFP_META) return; 453 454 switch (hci_event_hfp_meta_get_subevent_code(event)) { 455 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 456 status = hfp_subevent_service_level_connection_established_get_status(event); 457 if (status != ERROR_CODE_SUCCESS){ 458 printf("Connection failed, staus 0x%02x\n", status); 459 break; 460 } 461 acl_handle = hfp_subevent_service_level_connection_established_get_acl_handle(event); 462 hfp_subevent_service_level_connection_established_get_bd_addr(event, device_addr); 463 printf("Service level connection established to %s.\n", bd_addr_to_str(device_addr)); 464 dump_supported_codecs(); 465 #ifndef HAVE_BTSTACK_STDIN 466 log_info("Establish Audio connection %s", bd_addr_to_str(device_addr)); 467 printf("Establish Audio connection %s...\n", bd_addr_to_str(device_addr)); 468 hfp_ag_establish_audio_connection(acl_handle); 469 #endif 470 break; 471 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 472 printf("Service level connection released.\n"); 473 acl_handle = HCI_CON_HANDLE_INVALID; 474 break; 475 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 476 if (hfp_subevent_audio_connection_established_get_status(event) != ERROR_CODE_SUCCESS){ 477 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 478 } else { 479 sco_handle = hfp_subevent_audio_connection_established_get_sco_handle(event); 480 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 481 negotiated_codec = hfp_subevent_audio_connection_established_get_negotiated_codec(event); 482 switch (negotiated_codec){ 483 case 0x01: 484 printf("Using CVSD codec.\n"); 485 break; 486 case 0x02: 487 printf("Using mSBC codec.\n"); 488 break; 489 default: 490 printf("Using unknown codec 0x%02x.\n", negotiated_codec); 491 break; 492 } 493 sco_demo_set_codec(negotiated_codec); 494 hci_request_sco_can_send_now_event(); 495 } 496 break; 497 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 498 printf("Audio connection released\n"); 499 sco_handle = HCI_CON_HANDLE_INVALID; 500 sco_demo_close(); 501 break; 502 case HFP_SUBEVENT_START_RINGINIG: 503 printf("Start Ringing\n"); 504 break; 505 case HFP_SUBEVENT_STOP_RINGINIG: 506 printf("Stop Ringing\n"); 507 break; 508 case HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER: 509 printf("Outgoing call '%s'\n", hfp_subevent_place_call_with_number_get_number(event)); 510 // validate number 511 if ( strcmp("1234567", hfp_subevent_place_call_with_number_get_number(event)) == 0 512 || strcmp("7654321", hfp_subevent_place_call_with_number_get_number(event)) == 0 513 || (memory_1_enabled && strcmp(">1", hfp_subevent_place_call_with_number_get_number(event)) == 0)){ 514 printf("Dialstring valid: accept call\n"); 515 hfp_ag_outgoing_call_accepted(); 516 } else { 517 printf("Dialstring invalid: reject call\n"); 518 hfp_ag_outgoing_call_rejected(); 519 } 520 break; 521 522 case HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG: 523 printf("Attach number to voice tag. Sending '1234567\n"); 524 hfp_ag_send_phone_number_for_voice_tag(acl_handle, "1234567"); 525 break; 526 case HFP_SUBEVENT_TRANSMIT_DTMF_CODES: 527 printf("Send DTMF Codes: '%s'\n", hfp_subevent_transmit_dtmf_codes_get_dtmf(event)); 528 hfp_ag_send_dtmf_code_done(acl_handle); 529 break; 530 case HFP_SUBEVENT_CALL_ANSWERED: 531 printf("Call answered by HF\n"); 532 break; 533 default: 534 break; 535 } 536 break; 537 case HCI_SCO_DATA_PACKET: 538 if (READ_SCO_CONNECTION_HANDLE(event) != sco_handle) break; 539 sco_demo_receive(event, event_size); 540 break; 541 default: 542 break; 543 } 544 } 545 546 static hfp_phone_number_t subscriber_number = { 547 129, "225577" 548 }; 549 550 /* @section Main Application Setup 551 * 552 * @text Listing MainConfiguration shows main application code. 553 * To run a HFP AG service you need to initialize the SDP, and to create and register HFP AG record with it. 554 * The packet_handler is used for sending commands to the HFP HF. It also receives the HFP HF's answers. 555 * The stdin_process callback allows for sending commands to the HFP HF. 556 * At the end the Bluetooth stack is started. 557 */ 558 559 /* LISTING_START(MainConfiguration): Setup HFP Audio Gateway */ 560 561 int btstack_main(int argc, const char * argv[]); 562 int btstack_main(int argc, const char * argv[]){ 563 (void)argc; 564 (void)argv; 565 566 sco_demo_init(); 567 568 gap_set_local_name("HFP AG Demo 00:00:00:00:00:00"); 569 gap_discoverable_control(1); 570 571 // L2CAP 572 l2cap_init(); 573 574 uint16_t supported_features = 575 (1<<HFP_AGSF_ESCO_S4) | 576 (1<<HFP_AGSF_HF_INDICATORS) | 577 (1<<HFP_AGSF_CODEC_NEGOTIATION) | 578 (1<<HFP_AGSF_EXTENDED_ERROR_RESULT_CODES) | 579 (1<<HFP_AGSF_ENHANCED_CALL_CONTROL) | 580 (1<<HFP_AGSF_ENHANCED_CALL_STATUS) | 581 (1<<HFP_AGSF_ABILITY_TO_REJECT_A_CALL) | 582 (1<<HFP_AGSF_IN_BAND_RING_TONE) | 583 (1<<HFP_AGSF_VOICE_RECOGNITION_FUNCTION) | 584 (1<<HFP_AGSF_THREE_WAY_CALLING); 585 int wide_band_speech = 1; 586 587 // HFP 588 rfcomm_init(); 589 hfp_ag_init(rfcomm_channel_nr); 590 hfp_ag_init_supported_features(supported_features); 591 hfp_ag_init_codecs(sizeof(codecs), codecs); 592 hfp_ag_init_ag_indicators(ag_indicators_nr, ag_indicators); 593 hfp_ag_init_hf_indicators(hf_indicators_nr, hf_indicators); 594 hfp_ag_init_call_hold_services(call_hold_services_nr, call_hold_services); 595 hfp_ag_set_subcriber_number_information(&subscriber_number, 1); 596 597 // SDP Server 598 sdp_init(); 599 memset(hfp_service_buffer, 0, sizeof(hfp_service_buffer)); 600 hfp_ag_create_sdp_record( hfp_service_buffer, 0x10001, rfcomm_channel_nr, hfp_ag_service_name, 0, supported_features, wide_band_speech); 601 printf("SDP service record size: %u\n", de_get_len( hfp_service_buffer)); 602 sdp_register_service(hfp_service_buffer); 603 604 // register for HCI events and SCO packets 605 hci_event_callback_registration.callback = &packet_handler; 606 hci_add_event_handler(&hci_event_callback_registration); 607 hci_register_sco_packet_handler(&packet_handler); 608 609 // register for HFP events 610 hfp_ag_register_packet_handler(&packet_handler); 611 612 // parse humand readable Bluetooth address 613 sscanf_bd_addr(device_addr_string, device_addr); 614 615 #ifdef HAVE_BTSTACK_STDIN 616 btstack_stdin_setup(stdin_process); 617 #endif 618 // turn on! 619 hci_power_control(HCI_POWER_ON); 620 return 0; 621 } 622 /* LISTING_END */ 623 /* EXAMPLE_END */ 624