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 = "00:1A:7D:DA:71:13"; 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("z - Disable Enhanced Voice Recognition | Z - Enable Ehnaced Voice Recognition\n"); 170 printf("o - Set speaker volume to 0 (minimum) | O - Set speaker volume to 9 (default)\n"); 171 printf("p - Set speaker volume to 12 (higher) | P - Set speaker volume to 15 (maximum)\n"); 172 printf("q - Set microphone gain to 0 (minimum) | Q - Set microphone gain to 9 (default)\n"); 173 printf("s - Set microphone gain to 12 (higher) | S - Set microphone gain to 15 (maximum)\n"); 174 printf("t - terminate connection\n"); 175 printf("u - join held call\n"); 176 printf("v - discover nearby HF units\n"); 177 printf("w - put incoming call on hold (Response and Hold)\n"); 178 printf("x - accept held incoming call (Response and Hold)\n"); 179 printf("X - reject held incoming call (Response and Hold)\n"); 180 printf("---\n"); 181 } 182 183 static void stdin_process(char cmd){ 184 uint8_t status = ERROR_CODE_SUCCESS; 185 186 switch (cmd){ 187 case 'a': 188 log_info("USER:\'%c\'", cmd); 189 printf("Establish HFP service level connection to %s...\n", bd_addr_to_str(device_addr)); 190 status = hfp_ag_establish_service_level_connection(device_addr); 191 break; 192 case 'A': 193 log_info("USER:\'%c\'", cmd); 194 printf("Release HFP service level connection.\n"); 195 status = hfp_ag_release_service_level_connection(acl_handle); 196 break; 197 198 case 'b': 199 log_info("USER:\'%c\'", cmd); 200 printf("Establish Audio connection %s...\n", bd_addr_to_str(device_addr)); 201 status = hfp_ag_establish_audio_connection(acl_handle); 202 break; 203 case 'B': 204 log_info("USER:\'%c\'", cmd); 205 printf("Release Audio connection.\n"); 206 status = hfp_ag_release_audio_connection(acl_handle); 207 break; 208 case 'c': 209 log_info("USER:\'%c\'", cmd); 210 printf("Simulate incoming call from 1234567\n"); 211 hfp_ag_set_clip(129, "1234567"); 212 hfp_ag_incoming_call(); 213 break; 214 case 'D': 215 printf("Deleting all link keys\n"); 216 gap_delete_all_link_keys(); 217 break; 218 case 'm': 219 log_info("USER:\'%c\'", cmd); 220 printf("Simulate incoming call from 7654321\n"); 221 hfp_ag_set_clip(129, "7654321"); 222 hfp_ag_incoming_call(); 223 break; 224 case 'C': 225 log_info("USER:\'%c\'", cmd); 226 printf("Simulate terminate call\n"); 227 hfp_ag_call_dropped(); 228 break; 229 case 'd': 230 log_info("USER:\'%c\'", cmd); 231 printf("Report AG failure\n"); 232 status = hfp_ag_report_extended_audio_gateway_error_result_code(acl_handle, HFP_CME_ERROR_AG_FAILURE); 233 break; 234 case 'e': 235 log_info("USER:\'%c\'", cmd); 236 printf("Answer call on AG\n"); 237 hfp_ag_answer_incoming_call(); 238 break; 239 case 'E': 240 log_info("USER:\'%c\'", cmd); 241 printf("Reject call on AG\n"); 242 hfp_ag_terminate_call(); 243 break; 244 case 'f': 245 log_info("USER:\'%c\'", cmd); 246 printf("Disable cellular network\n"); 247 status = hfp_ag_set_registration_status(0); 248 break; 249 case 'F': 250 log_info("USER:\'%c\'", cmd); 251 printf("Enable cellular network\n"); 252 status = hfp_ag_set_registration_status(1); 253 break; 254 case 'g': 255 log_info("USER:\'%c\'", cmd); 256 printf("Set signal strength to 0\n"); 257 status = hfp_ag_set_signal_strength(0); 258 break; 259 case 'G': 260 log_info("USER:\'%c\'", cmd); 261 printf("Set signal strength to 5\n"); 262 status = hfp_ag_set_signal_strength(5); 263 break; 264 case 'h': 265 log_info("USER:\'%c\'", cmd); 266 printf("Disable roaming\n"); 267 status = hfp_ag_set_roaming_status(0); 268 break; 269 case 'H': 270 log_info("USER:\'%c\'", cmd); 271 printf("Enable roaming\n"); 272 status = hfp_ag_set_roaming_status(1); 273 break; 274 case 'i': 275 log_info("USER:\'%c\'", cmd); 276 printf("Set battery level to 3\n"); 277 status = hfp_ag_set_battery_level(3); 278 break; 279 case 'I': 280 log_info("USER:\'%c\'", cmd); 281 printf("Set battery level to 5\n"); 282 status = hfp_ag_set_battery_level(5); 283 break; 284 case 'j': 285 log_info("USER:\'%c\'", cmd); 286 printf("Answering call on remote side\n"); 287 hfp_ag_outgoing_call_established(); 288 break; 289 case 'r': 290 log_info("USER:\'%c\'", cmd); 291 printf("Disable in-band ring tone\n"); 292 hfp_ag_set_use_in_band_ring_tone(0); 293 break; 294 case 'k': 295 log_info("USER:\'%c\'", cmd); 296 printf("Memory 1 cleared\n"); 297 memory_1_enabled = 0; 298 break; 299 case 'K': 300 log_info("USER:\'%c\'", cmd); 301 printf("Memory 1 set\n"); 302 memory_1_enabled = 1; 303 break; 304 case 'l': 305 log_info("USER:\'%c\'", cmd); 306 printf("Last dialed number cleared\n"); 307 hfp_ag_clear_last_dialed_number(); 308 break; 309 case 'L': 310 log_info("USER:\'%c\'", cmd); 311 printf("Outgoing call connected, ringing\n"); 312 hfp_ag_outgoing_call_ringing(); 313 break; 314 case 'n': 315 log_info("USER:\'%c\'", cmd); 316 printf("Disable Voice Recognition\n"); 317 status = hfp_ag_deactivate_voice_recognition(acl_handle); 318 break; 319 case 'N': 320 log_info("USER:\'%c\'", cmd); 321 printf("Enable Voice Recognition\n"); 322 status = hfp_ag_activate_voice_recognition(acl_handle); 323 break; 324 325 case 'z': 326 log_info("USER:\'%c\'", cmd); 327 printf("Disable Enhanced Voice Recognition\n"); 328 status = hfp_ag_deactivate_enhanced_voice_recognition(acl_handle); 329 break; 330 case 'Z': 331 log_info("USER:\'%c\'", cmd); 332 printf("Enable Enhanced_Voice Recognition\n"); 333 status = hfp_ag_activate_enhanced_voice_recognition(acl_handle); 334 break; 335 336 case 'o': 337 log_info("USER:\'%c\'", cmd); 338 printf("Set speaker gain to 0 (minimum)\n"); 339 status = hfp_ag_set_speaker_gain(acl_handle, 0); 340 break; 341 case 'O': 342 log_info("USER:\'%c\'", cmd); 343 printf("Set speaker gain to 9 (default)\n"); 344 status = hfp_ag_set_speaker_gain(acl_handle, 9); 345 break; 346 case 'p': 347 log_info("USER:\'%c\'", cmd); 348 printf("Set speaker gain to 12 (higher)\n"); 349 status = hfp_ag_set_speaker_gain(acl_handle, 12); 350 break; 351 case 'P': 352 log_info("USER:\'%c\'", cmd); 353 printf("Set speaker gain to 15 (maximum)\n"); 354 status = hfp_ag_set_speaker_gain(acl_handle, 15); 355 break; 356 case 'q': 357 log_info("USER:\'%c\'", cmd); 358 printf("Set microphone gain to 0\n"); 359 status = hfp_ag_set_microphone_gain(acl_handle, 0); 360 break; 361 case 'Q': 362 log_info("USER:\'%c\'", cmd); 363 printf("Set microphone gain to 9\n"); 364 status = hfp_ag_set_microphone_gain(acl_handle, 9); 365 break; 366 case 's': 367 log_info("USER:\'%c\'", cmd); 368 printf("Set microphone gain to 12\n"); 369 status = hfp_ag_set_microphone_gain(acl_handle, 12); 370 break; 371 case 'S': 372 log_info("USER:\'%c\'", cmd); 373 printf("Set microphone gain to 15\n"); 374 status = hfp_ag_set_microphone_gain(acl_handle, 15); 375 break; 376 case 'R': 377 log_info("USER:\'%c\'", cmd); 378 printf("Enable in-band ring tone\n"); 379 hfp_ag_set_use_in_band_ring_tone(1); 380 break; 381 case 't': 382 log_info("USER:\'%c\'", cmd); 383 printf("Terminate HCI connection. 0x%2x\n", acl_handle); 384 gap_disconnect(acl_handle); 385 break; 386 case 'u': 387 log_info("USER:\'%c\'", cmd); 388 printf("Join held call\n"); 389 hfp_ag_join_held_call(); 390 break; 391 case 'v': 392 printf("Start scanning...\n"); 393 gap_inquiry_start(INQUIRY_INTERVAL); 394 break; 395 case 'w': 396 log_info("USER:\'%c\'", cmd); 397 printf("AG: Put incoming call on hold (Response and Hold)\n"); 398 hfp_ag_hold_incoming_call(); 399 break; 400 case 'x': 401 log_info("USER:\'%c\'", cmd); 402 printf("AG: Accept held incoming call (Response and Hold)\n"); 403 hfp_ag_accept_held_incoming_call(); 404 break; 405 case 'X': 406 log_info("USER:\'%c\'", cmd); 407 printf("AG: Reject held incoming call (Response and Hold)\n"); 408 hfp_ag_reject_held_incoming_call(); 409 break; 410 default: 411 show_usage(); 412 break; 413 } 414 415 if (status != ERROR_CODE_SUCCESS){ 416 printf("Could not perform command, status 0x%02x\n", status); 417 } 418 } 419 #endif 420 421 static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t * event, uint16_t event_size){ 422 UNUSED(channel); 423 bd_addr_t addr; 424 uint8_t status; 425 switch (packet_type){ 426 case HCI_EVENT_PACKET: 427 switch(hci_event_packet_get_type(event)){ 428 #ifndef HAVE_BTSTACK_STDIN 429 case BTSTACK_EVENT_STATE: 430 if (btstack_event_state_get_state(event) != HCI_STATE_WORKING) break; 431 printf("Establish HFP AG service level connection to %s...\n", bd_addr_to_str(device_addr)); 432 hfp_ag_establish_service_level_connection(device_addr); 433 break; 434 #endif 435 case GAP_EVENT_INQUIRY_RESULT: 436 gap_event_inquiry_result_get_bd_addr(event, addr); 437 // print info 438 printf("Device found: %s ", bd_addr_to_str(addr)); 439 printf("with COD: 0x%06x, ", (unsigned int) gap_event_inquiry_result_get_class_of_device(event)); 440 if (gap_event_inquiry_result_get_rssi_available(event)){ 441 printf(", rssi %d dBm", (int8_t) gap_event_inquiry_result_get_rssi(event)); 442 } 443 if (gap_event_inquiry_result_get_name_available(event)){ 444 char name_buffer[240]; 445 int name_len = gap_event_inquiry_result_get_name_len(event); 446 memcpy(name_buffer, gap_event_inquiry_result_get_name(event), name_len); 447 name_buffer[name_len] = 0; 448 printf(", name '%s'", name_buffer); 449 } 450 printf("\n"); 451 break; 452 case GAP_EVENT_INQUIRY_COMPLETE: 453 printf("Inquiry scan complete.\n"); 454 break; 455 case HCI_EVENT_SCO_CAN_SEND_NOW: 456 sco_demo_send(sco_handle); 457 break; 458 case HCI_EVENT_COMMAND_COMPLETE: 459 if (HCI_EVENT_IS_COMMAND_COMPLETE(event, hci_read_local_supported_features)){ 460 dump_supported_codecs(); 461 } 462 break; 463 default: 464 break; 465 } 466 467 if (hci_event_packet_get_type(event) != HCI_EVENT_HFP_META) return; 468 469 switch (hci_event_hfp_meta_get_subevent_code(event)) { 470 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 471 status = hfp_subevent_service_level_connection_established_get_status(event); 472 if (status != ERROR_CODE_SUCCESS){ 473 printf("Connection failed, status 0x%02x\n", status); 474 break; 475 } 476 acl_handle = hfp_subevent_service_level_connection_established_get_acl_handle(event); 477 hfp_subevent_service_level_connection_established_get_bd_addr(event, device_addr); 478 printf("Service level connection established to %s.\n", bd_addr_to_str(device_addr)); 479 dump_supported_codecs(); 480 #ifndef HAVE_BTSTACK_STDIN 481 log_info("Establish Audio connection %s", bd_addr_to_str(device_addr)); 482 printf("Establish Audio connection %s...\n", bd_addr_to_str(device_addr)); 483 hfp_ag_establish_audio_connection(acl_handle); 484 #endif 485 break; 486 case HFP_SUBEVENT_SERVICE_LEVEL_CONNECTION_RELEASED: 487 printf("Service level connection released.\n"); 488 acl_handle = HCI_CON_HANDLE_INVALID; 489 break; 490 case HFP_SUBEVENT_AUDIO_CONNECTION_ESTABLISHED: 491 if (hfp_subevent_audio_connection_established_get_status(event) != ERROR_CODE_SUCCESS){ 492 printf("Audio connection establishment failed with status %u\n", hfp_subevent_audio_connection_established_get_status(event)); 493 } else { 494 sco_handle = hfp_subevent_audio_connection_established_get_sco_handle(event); 495 printf("Audio connection established with SCO handle 0x%04x.\n", sco_handle); 496 negotiated_codec = hfp_subevent_audio_connection_established_get_negotiated_codec(event); 497 switch (negotiated_codec){ 498 case 0x01: 499 printf("Using CVSD codec.\n"); 500 break; 501 case 0x02: 502 printf("Using mSBC codec.\n"); 503 break; 504 default: 505 printf("Using unknown codec 0x%02x.\n", negotiated_codec); 506 break; 507 } 508 sco_demo_set_codec(negotiated_codec); 509 hci_request_sco_can_send_now_event(); 510 } 511 break; 512 case HFP_SUBEVENT_AUDIO_CONNECTION_RELEASED: 513 printf("Audio connection released\n"); 514 sco_handle = HCI_CON_HANDLE_INVALID; 515 sco_demo_close(); 516 break; 517 case HFP_SUBEVENT_START_RINGINIG: 518 printf("Start Ringing\n"); 519 break; 520 case HFP_SUBEVENT_STOP_RINGINIG: 521 printf("Stop Ringing\n"); 522 break; 523 case HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER: 524 printf("Outgoing call '%s'\n", hfp_subevent_place_call_with_number_get_number(event)); 525 // validate number 526 if ( strcmp("1234567", hfp_subevent_place_call_with_number_get_number(event)) == 0 527 || strcmp("7654321", hfp_subevent_place_call_with_number_get_number(event)) == 0 528 || (memory_1_enabled && strcmp(">1", hfp_subevent_place_call_with_number_get_number(event)) == 0)){ 529 printf("Dial string valid: accept call\n"); 530 hfp_ag_outgoing_call_accepted(); 531 } else { 532 printf("Dial string invalid: reject call\n"); 533 hfp_ag_outgoing_call_rejected(); 534 } 535 break; 536 537 case HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG: 538 printf("Attach number to voice tag. Sending '1234567\n"); 539 hfp_ag_send_phone_number_for_voice_tag(acl_handle, "1234567"); 540 break; 541 case HFP_SUBEVENT_TRANSMIT_DTMF_CODES: 542 printf("Send DTMF Codes: '%s'\n", hfp_subevent_transmit_dtmf_codes_get_dtmf(event)); 543 hfp_ag_send_dtmf_code_done(acl_handle); 544 break; 545 case HFP_SUBEVENT_CALL_ANSWERED: 546 printf("Call answered by HF\n"); 547 break; 548 549 case HFP_SUBEVENT_VOICE_RECOGNITION_STATUS: 550 status = hfp_subevent_voice_recognition_status_get_status(event); 551 if (status != ERROR_CODE_SUCCESS){ 552 printf("Voice Recognition command failed\n"); 553 break; 554 } 555 switch(hfp_subevent_voice_recognition_status_get_state(event)){ 556 case 0: 557 printf("\nVoice recognition status DEACTIVATED\n\n"); 558 break; 559 case 1: 560 printf("\nVoice recognition status ACTIVATED\n\n"); 561 break; 562 default: 563 btstack_assert(false); 564 break; 565 } 566 break; 567 568 case HFP_SUBEVENT_ENHANCED_VOICE_RECOGNITION_HF_READY_FOR_AUDIO: 569 status = hfp_subevent_enhanced_voice_recognition_hf_ready_for_audio_get_status(event); 570 if (status != ERROR_CODE_SUCCESS){ 571 printf("Enhanced Voice recognition READY FOR AUDIO cmd failed\n"); 572 break; 573 } 574 printf("\nEnhanced Voice recognition status READY FOR AUDIO\n\n"); 575 break; 576 default: 577 break; 578 } 579 break; 580 case HCI_SCO_DATA_PACKET: 581 if (READ_SCO_CONNECTION_HANDLE(event) != sco_handle) break; 582 sco_demo_receive(event, event_size); 583 break; 584 default: 585 break; 586 } 587 } 588 589 static hfp_phone_number_t subscriber_number = { 590 129, "225577" 591 }; 592 593 /* @section Main Application Setup 594 * 595 * @text Listing MainConfiguration shows main application code. 596 * To run a HFP AG service you need to initialize the SDP, and to create and register HFP AG record with it. 597 * The packet_handler is used for sending commands to the HFP HF. It also receives the HFP HF's answers. 598 * The stdin_process callback allows for sending commands to the HFP HF. 599 * At the end the Bluetooth stack is started. 600 */ 601 602 /* LISTING_START(MainConfiguration): Setup HFP Audio Gateway */ 603 604 int btstack_main(int argc, const char * argv[]); 605 int btstack_main(int argc, const char * argv[]){ 606 (void)argc; 607 (void)argv; 608 609 sco_demo_init(); 610 611 gap_set_local_name("HFP AG Demo 00:00:00:00:00:00"); 612 gap_discoverable_control(1); 613 614 // L2CAP 615 l2cap_init(); 616 617 uint16_t supported_features = 618 (1<<HFP_AGSF_ESCO_S4) | 619 (1<<HFP_AGSF_HF_INDICATORS) | 620 (1<<HFP_AGSF_CODEC_NEGOTIATION) | 621 (1<<HFP_AGSF_EXTENDED_ERROR_RESULT_CODES) | 622 (1<<HFP_AGSF_ENHANCED_CALL_CONTROL) | 623 (1<<HFP_AGSF_ENHANCED_CALL_STATUS) | 624 (1<<HFP_AGSF_ABILITY_TO_REJECT_A_CALL) | 625 (1<<HFP_AGSF_IN_BAND_RING_TONE) | 626 (1<<HFP_AGSF_VOICE_RECOGNITION_FUNCTION) | 627 (1<<HFP_AGSF_ENHANCED_VOICE_RECOGNITION_STATUS) | 628 (1<<HFP_AGSF_THREE_WAY_CALLING); 629 int wide_band_speech = 1; 630 631 // HFP 632 rfcomm_init(); 633 hfp_ag_init(rfcomm_channel_nr); 634 hfp_ag_init_supported_features(supported_features); 635 hfp_ag_init_codecs(sizeof(codecs), codecs); 636 hfp_ag_init_ag_indicators(ag_indicators_nr, ag_indicators); 637 hfp_ag_init_hf_indicators(hf_indicators_nr, hf_indicators); 638 hfp_ag_init_call_hold_services(call_hold_services_nr, call_hold_services); 639 hfp_ag_set_subcriber_number_information(&subscriber_number, 1); 640 641 // SDP Server 642 sdp_init(); 643 memset(hfp_service_buffer, 0, sizeof(hfp_service_buffer)); 644 hfp_ag_create_sdp_record( hfp_service_buffer, 0x10001, rfcomm_channel_nr, hfp_ag_service_name, 0, supported_features, wide_band_speech); 645 printf("SDP service record size: %u\n", de_get_len( hfp_service_buffer)); 646 sdp_register_service(hfp_service_buffer); 647 648 // register for HCI events and SCO packets 649 hci_event_callback_registration.callback = &packet_handler; 650 hci_add_event_handler(&hci_event_callback_registration); 651 hci_register_sco_packet_handler(&packet_handler); 652 653 // register for HFP events 654 hfp_ag_register_packet_handler(&packet_handler); 655 656 // parse human readable Bluetooth address 657 sscanf_bd_addr(device_addr_string, device_addr); 658 659 #ifdef HAVE_BTSTACK_STDIN 660 btstack_stdin_setup(stdin_process); 661 #endif 662 // turn on! 663 hci_power_control(HCI_POWER_ON); 664 return 0; 665 } 666 /* LISTING_END */ 667 /* EXAMPLE_END */ 668