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 // ***************************************************************************** 39 // 40 // HFP Hands-Free (HF) unit and Audio Gateway Commons 41 // 42 // ***************************************************************************** 43 44 45 #ifndef __BTSTACK_HFP_H 46 #define __BTSTACK_HFP_H 47 48 #include "hci.h" 49 #include "classic/sdp_client_rfcomm.h" 50 51 #if defined __cplusplus 52 extern "C" { 53 #endif 54 55 56 /* HF Supported Features: 57 0: EC and/or NR function 58 1: Three-way calling 59 2: CLI presentation capability 60 3: Voice recognition activation 61 4: Remote volume control 62 5: Enhanced call status 63 6: Enhanced call control 64 7: Codec negotiation 65 8: HF Indicators 66 9: eSCO S4 (and T2) Settings Supported 67 10-31: Reserved for future definition 68 */ 69 #define HFP_HFSF_EC_NR_FUNCTION 0 70 #define HFP_HFSF_THREE_WAY_CALLING 1 71 #define HFP_HFSF_CLI_PRESENTATION_CAPABILITY 2 72 #define HFP_HFSF_VOICE_RECOGNITION_FUNCTION 3 73 #define HFP_HFSF_REMOTE_VOLUME_CONTROL 4 74 #define HFP_HFSF_ENHANCED_CALL_STATUS 5 75 #define HFP_HFSF_ENHANCED_CALL_CONTROL 6 76 #define HFP_HFSF_CODEC_NEGOTIATION 7 77 #define HFP_HFSF_HF_INDICATORS 8 78 #define HFP_HFSF_ESCO_S4 9 79 80 /* AG Supported Features: 81 0: Three-way calling 82 1: EC and/or NR function 83 2: Voice recognition function 84 3: In-band ring tone capability 85 4: Attach a number to a voice tag 86 5: Ability to reject a call 87 6: Enhanced call status 88 7: Enhanced call control 89 8: Extended Error Result Codes 90 9: Codec negotiation 91 10: HF Indicators 92 11: eSCO S4 (and T2) Settings Supported 93 12-31: Reserved for future definition 94 */ 95 #define HFP_AGSF_THREE_WAY_CALLING 0 96 #define HFP_AGSF_EC_NR_FUNCTION 1 97 #define HFP_AGSF_VOICE_RECOGNITION_FUNCTION 2 98 #define HFP_AGSF_IN_BAND_RING_TONE 3 99 #define HFP_AGSF_ATTACH_A_NUMBER_TO_A_VOICE_TAG 4 100 #define HFP_AGSF_ABILITY_TO_REJECT_A_CALL 5 101 #define HFP_AGSF_ENHANCED_CALL_STATUS 6 102 #define HFP_AGSF_ENHANCED_CALL_CONTROL 7 103 #define HFP_AGSF_EXTENDED_ERROR_RESULT_CODES 8 104 #define HFP_AGSF_CODEC_NEGOTIATION 9 105 #define HFP_AGSF_HF_INDICATORS 10 106 #define HFP_AGSF_ESCO_S4 11 107 108 #define HFP_DEFAULT_HF_SUPPORTED_FEATURES 0x0000 109 #define HFP_DEFAULT_AG_SUPPORTED_FEATURES 0x0009 110 111 #define HFP_MAX_NUM_CODECS 20 112 #define HFP_MAX_NUM_AG_INDICATORS 20 113 #define HFP_MAX_NUM_HF_INDICATORS 20 114 #define HFP_MAX_INDICATOR_DESC_SIZE 20 115 116 #define HFP_SUPPORTED_FEATURES "+BRSF" 117 #define HFP_AVAILABLE_CODECS "+BAC" 118 #define HFP_INDICATOR "+CIND" 119 #define HFP_ENABLE_STATUS_UPDATE_FOR_AG_INDICATORS "+CMER" 120 #define HFP_ENABLE_CLIP "+CLIP" 121 #define HFP_ENABLE_CALL_WAITING_NOTIFICATION "+CCWA" 122 #define HFP_UPDATE_ENABLE_STATUS_FOR_INDIVIDUAL_AG_INDICATORS "+BIA" // +BIA:<enabled>,,<enabled>,,,<enabled> 123 #define HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES "+CHLD" 124 #define HFP_GENERIC_STATUS_INDICATOR "+BIND" 125 #define HFP_TRANSFER_AG_INDICATOR_STATUS "+CIEV" // +CIEV: <index>,<value> 126 #define HFP_TRANSFER_HF_INDICATOR_STATUS "+BIEV" // +BIEC: <index>,<value> 127 #define HFP_QUERY_OPERATOR_SELECTION "+COPS" // +COPS: <mode>,0,<opearator> 128 #define HFP_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR "+CMEE" 129 #define HFP_EXTENDED_AUDIO_GATEWAY_ERROR "+CME ERROR" 130 #define HFP_TRIGGER_CODEC_CONNECTION_SETUP "+BCC" 131 #define HFP_CONFIRM_COMMON_CODEC "+BCS" 132 #define HFP_CALL_ANSWERED "ATA" 133 #define HFP_HANG_UP_CALL "+CHUP" 134 #define HFP_CHANGE_IN_BAND_RING_TONE_SETTING "+BSIR" 135 #define HFP_CALL_PHONE_NUMBER "ATD" 136 #define HFP_REDIAL_LAST_NUMBER "+BLDN" 137 #define HFP_TURN_OFF_EC_AND_NR "+NREC" // EC (Echo CAnceling), NR (Noise Reduction) 138 #define HFP_ACTIVATE_VOICE_RECOGNITION "+BVRA" // EC (Echo CAnceling), NR (Noise Reduction) 139 #define HFP_SET_MICROPHONE_GAIN "+VGM" 140 #define HFP_SET_SPEAKER_GAIN "+VGS" 141 #define HFP_PHONE_NUMBER_FOR_VOICE_TAG "+BINP" 142 #define HFP_TRANSMIT_DTMF_CODES "+VTS" 143 #define HFP_SUBSCRIBER_NUMBER_INFORMATION "+CNUM" 144 #define HFP_LIST_CURRENT_CALLS "+CLCC" 145 #define HFP_RESPONSE_AND_HOLD "+BTRH" 146 147 #define HFP_OK "OK" 148 #define HFP_ERROR "ERROR" 149 #define HFP_RING "RING" 150 151 // Codecs 152 #define HFP_CODEC_CVSD 0x01 153 #define HFP_CODEC_MSBC 0x02 154 155 typedef enum { 156 HFP_CMD_NONE = 0, 157 HFP_CMD_ERROR, 158 HFP_CMD_UNKNOWN, 159 HFP_CMD_OK, 160 HFP_CMD_RING, 161 HFP_CMD_SUPPORTED_FEATURES, 162 HFP_CMD_AVAILABLE_CODECS, 163 164 HFP_CMD_RETRIEVE_AG_INDICATORS, 165 HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS, 166 167 HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE, 168 HFP_CMD_ENABLE_INDIVIDUAL_AG_INDICATOR_STATUS_UPDATE, 169 HFP_CMD_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES, 170 HFP_CMD_ENABLE_CLIP, 171 HFP_CMD_AG_SENT_CLIP_INFORMATION, 172 HFP_CMD_ENABLE_CALL_WAITING_NOTIFICATION, 173 HFP_CMD_AG_SENT_CALL_WAITING_NOTIFICATION_UPDATE, 174 175 HFP_CMD_LIST_GENERIC_STATUS_INDICATORS, 176 HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS, 177 HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS_STATE, 178 HFP_CMD_SET_GENERIC_STATUS_INDICATOR_STATUS, 179 180 HFP_CMD_TRANSFER_AG_INDICATOR_STATUS, 181 182 HFP_CMD_QUERY_OPERATOR_SELECTION_NAME, 183 HFP_CMD_QUERY_OPERATOR_SELECTION_NAME_FORMAT, 184 185 HFP_CMD_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR, 186 HFP_CMD_EXTENDED_AUDIO_GATEWAY_ERROR, 187 HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP, 188 HFP_CMD_AG_SEND_COMMON_CODEC, 189 HFP_CMD_AG_SUGGESTED_CODEC, 190 HFP_CMD_HF_CONFIRMED_CODEC, 191 HFP_CMD_CALL_ANSWERED, 192 HFP_CMD_CALL_HOLD, 193 HFP_CMD_AG_ANSWER_CALL, 194 HFP_CMD_HANG_UP_CALL, 195 HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING, 196 HFP_CMD_CALL_PHONE_NUMBER, 197 HFP_CMD_REDIAL_LAST_NUMBER, 198 HFP_CMD_TURN_OFF_EC_AND_NR, 199 HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION, 200 HFP_CMD_HF_ACTIVATE_VOICE_RECOGNITION, 201 HFP_CMD_HF_REQUEST_PHONE_NUMBER, 202 HFP_CMD_AG_SENT_PHONE_NUMBER, 203 HFP_CMD_TRANSMIT_DTMF_CODES, 204 HFP_CMD_SET_MICROPHONE_GAIN, 205 HFP_CMD_SET_SPEAKER_GAIN, 206 HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION, 207 HFP_CMD_LIST_CURRENT_CALLS, 208 HFP_CMD_RESPONSE_AND_HOLD_QUERY, 209 HFP_CMD_RESPONSE_AND_HOLD_COMMAND, 210 HFP_CMD_RESPONSE_AND_HOLD_STATUS, 211 HFP_CMD_HF_INDICATOR_STATUS 212 } hfp_command_t; 213 214 215 typedef enum { 216 HFP_CME_ERROR_AG_FAILURE = 0, 217 HFP_CME_ERROR_NO_CONNECTION_TO_PHONE, 218 HFP_CME_ERROR_2, 219 HFP_CME_ERROR_OPERATION_NOT_ALLOWED, 220 HFP_CME_ERROR_OPERATION_NOT_SUPPORTED, 221 HFP_CME_ERROR_PH_SIM_PIN_REQUIRED, 222 HFP_CME_ERROR_6, 223 HFP_CME_ERROR_7, 224 HFP_CME_ERROR_8, 225 HFP_CME_ERROR_9, 226 HFP_CME_ERROR_SIM_NOT_INSERTED, 227 HFP_CME_ERROR_SIM_PIN_REQUIRED, 228 HFP_CME_ERROR_SIM_PUK_REQUIRED, 229 HFP_CME_ERROR_SIM_FAILURE, 230 HFP_CME_ERROR_SIM_BUSY, 231 HFP_CME_ERROR_15, 232 HFP_CME_ERROR_INCORRECT_PASSWORD, 233 HFP_CME_ERROR_SIM_PIN2_REQUIRED, 234 HFP_CME_ERROR_SIM_PUK2_REQUIRED, 235 HFP_CME_ERROR_19, 236 HFP_CME_ERROR_MEMORY_FULL, 237 HFP_CME_ERROR_INVALID_INDEX, 238 HFP_CME_ERROR_22, 239 HFP_CME_ERROR_MEMORY_FAILURE, 240 HFP_CME_ERROR_TEXT_STRING_TOO_LONG, 241 HFP_CME_ERROR_INVALID_CHARACTERS_IN_TEXT_STRING, 242 HFP_CME_ERROR_DIAL_STRING_TOO_LONG, 243 HFP_CME_ERROR_INVALID_CHARACTERS_IN_DIAL_STRING, 244 HFP_CME_ERROR_28, 245 HFP_CME_ERROR_29, 246 HFP_CME_ERROR_NO_NETWORK_SERVICE, 247 HFP_CME_ERROR_NETWORK_TIMEOUT, 248 HFP_CME_ERROR_NETWORK_NOT_ALLOWED_EMERGENCY_CALLS_ONLY 249 } hfp_cme_error_t; 250 251 typedef enum { 252 HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS = 0, 253 HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT 254 } hfp_call_status_t; 255 256 typedef enum { 257 HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS = 0, 258 HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS, 259 HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE, 260 HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE 261 } hfp_callsetup_status_t; 262 263 typedef enum { 264 HFP_CALLHELD_STATUS_NO_CALLS_HELD = 0, 265 HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED, 266 HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS 267 } hfp_callheld_status_t; 268 269 270 typedef enum { 271 HFP_AG_INCOMING_CALL, 272 HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, 273 HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF, 274 HFP_AG_AUDIO_CONNECTION_ESTABLISHED, 275 HFP_AG_OUTGOING_CALL_INITIATED, 276 HFP_AG_OUTGOING_CALL_REJECTED, 277 HFP_AG_OUTGOING_CALL_ACCEPTED, 278 HFP_AG_OUTGOING_CALL_RINGING, 279 HFP_AG_OUTGOING_CALL_ESTABLISHED, 280 HFP_AG_OUTGOING_REDIAL_INITIATED, 281 HFP_AG_HELD_CALL_JOINED_BY_AG, 282 HFP_AG_TERMINATE_CALL_BY_AG, 283 HFP_AG_TERMINATE_CALL_BY_HF, 284 HFP_AG_CALL_DROPPED, 285 HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG, 286 HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG, 287 HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG, 288 HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF, 289 HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF, 290 HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF, 291 HFP_AG_CALL_HOLD_USER_BUSY, 292 HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, 293 HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, 294 HFP_AG_CALL_HOLD_ADD_HELD_CALL, 295 HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS, 296 HFP_AG_SET_CLIP 297 } hfp_ag_call_event_t; 298 299 300 typedef enum { 301 HFP_PARSER_CMD_HEADER = 0, 302 HFP_PARSER_CMD_SEQUENCE, 303 HFP_PARSER_SECOND_ITEM, 304 HFP_PARSER_THIRD_ITEM 305 } hfp_parser_state_t; 306 307 308 typedef enum { 309 HFP_IDLE = 0, //0 310 HFP_SDP_QUERY_RFCOMM_CHANNEL, 311 HFP_W4_SDP_QUERY_COMPLETE, 312 HFP_W4_RFCOMM_CONNECTED, 313 314 HFP_EXCHANGE_SUPPORTED_FEATURES, 315 HFP_W4_EXCHANGE_SUPPORTED_FEATURES, // 5 316 317 HFP_NOTIFY_ON_CODECS, 318 HFP_W4_NOTIFY_ON_CODECS, 319 320 HFP_RETRIEVE_INDICATORS, 321 HFP_W4_RETRIEVE_INDICATORS, 322 323 HFP_RETRIEVE_INDICATORS_STATUS, // 10 324 HFP_W4_RETRIEVE_INDICATORS_STATUS, 325 326 HFP_ENABLE_INDICATORS_STATUS_UPDATE, 327 HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE, 328 329 HFP_RETRIEVE_CAN_HOLD_CALL, 330 HFP_W4_RETRIEVE_CAN_HOLD_CALL, // 15 331 332 HFP_LIST_GENERIC_STATUS_INDICATORS, 333 HFP_W4_LIST_GENERIC_STATUS_INDICATORS, 334 335 HFP_RETRIEVE_GENERIC_STATUS_INDICATORS, 336 HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS, 337 338 HFP_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS, 339 HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS, 340 341 HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED, 342 343 HFP_W2_CONNECT_SCO, 344 HFP_W4_SCO_CONNECTED, 345 346 HFP_AUDIO_CONNECTION_ESTABLISHED, 347 348 HFP_W2_DISCONNECT_SCO, 349 HFP_W4_SCO_DISCONNECTED, 350 351 HFP_W2_DISCONNECT_RFCOMM, 352 HFP_W4_RFCOMM_DISCONNECTED, 353 HFP_W4_RFCOMM_DISCONNECTED_AND_RESTART, 354 HFP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN 355 } hfp_state_t; 356 357 typedef enum { 358 HFP_CODECS_IDLE, 359 HFP_CODECS_RECEIVED_LIST, 360 HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE, 361 HFP_CODECS_W4_AG_COMMON_CODEC, 362 HFP_CODECS_AG_SENT_COMMON_CODEC, 363 HFP_CODECS_AG_RESEND_COMMON_CODEC, 364 HFP_CODECS_HF_CONFIRMED_CODEC, 365 HFP_CODECS_EXCHANGED, 366 HFP_CODECS_ERROR 367 } hfp_codecs_state_t; 368 369 typedef enum { 370 HFP_CALL_IDLE, 371 HFP_CALL_TRIGGER_AUDIO_CONNECTION, 372 HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING, 373 HFP_CALL_RINGING, 374 HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE, 375 HFP_CALL_ACTIVE, 376 HFP_CALL_W2_SEND_CALL_WAITING, 377 HFP_CALL_W4_CHLD, 378 HFP_CALL_OUTGOING_INITIATED, 379 HFP_CALL_OUTGOING_DIALING, 380 HFP_CALL_OUTGOING_RINGING 381 } hfp_call_state_t; 382 383 typedef enum{ 384 HFP_ENHANCED_CALL_DIR_OUTGOING, 385 HFP_ENHANCED_CALL_DIR_INCOMING 386 } hfp_enhanced_call_dir_t; 387 388 typedef enum{ 389 HFP_ENHANCED_CALL_STATUS_ACTIVE, 390 HFP_ENHANCED_CALL_STATUS_HELD, 391 HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING, 392 HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING, 393 HFP_ENHANCED_CALL_STATUS_INCOMING, 394 HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING, 395 HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD 396 } hfp_enhanced_call_status_t; 397 398 typedef enum{ 399 HFP_ENHANCED_CALL_MODE_VOICE, 400 HFP_ENHANCED_CALL_MODE_DATA, 401 HFP_ENHANCED_CALL_MODE_FAX 402 } hfp_enhanced_call_mode_t; 403 404 typedef enum{ 405 HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL, 406 HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL 407 } hfp_enhanced_call_mpty_t; 408 409 typedef enum { 410 HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD = 0, 411 HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED, 412 HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED 413 } hfp_response_and_hold_state_t; 414 415 typedef enum { 416 HFP_HF_QUERY_OPERATOR_FORMAT_NOT_SET = 0, 417 HFP_HF_QUERY_OPERATOR_SET_FORMAT, 418 HFP_HF_QUERY_OPERATOR_W4_SET_FORMAT_OK, 419 HFP_HF_QUERY_OPERATOR_FORMAT_SET, 420 HFP_HF_QUERY_OPERATOR_SEND_QUERY, 421 HPF_HF_QUERY_OPERATOR_W4_RESULT 422 } hfp_hf_query_operator_state_t; 423 424 typedef enum { 425 HFP_LINK_SETTINGS_D0 = 0, 426 HFP_LINK_SETTINGS_D1, 427 HFP_LINK_SETTINGS_S1, 428 HFP_LINK_SETTINGS_S2, 429 HFP_LINK_SETTINGS_S3, 430 HFP_LINK_SETTINGS_S4, 431 HFP_LINK_SETTINGS_T1, 432 HFP_LINK_SETTINGS_T2 433 } hfp_link_setttings_t; 434 435 typedef enum{ 436 HFP_NONE_SM, 437 HFP_SLC_SM, 438 HFP_SLC_QUERIES_SM, 439 HFP_CODECS_CONNECTION_SM, 440 HFP_AUDIO_CONNECTION_SM, 441 HFP_CALL_SM 442 } hfp_state_machine_t; 443 444 typedef struct{ 445 uint16_t uuid; 446 uint8_t state; // enabled 447 } hfp_generic_status_indicator_t; 448 449 typedef struct{ 450 uint8_t index; 451 char name[HFP_MAX_INDICATOR_DESC_SIZE]; 452 uint8_t min_range; 453 uint8_t max_range; 454 uint8_t status; 455 uint8_t mandatory; 456 uint8_t enabled; 457 uint8_t status_changed; 458 } hfp_ag_indicator_t; 459 460 typedef struct{ 461 char name[3]; 462 } hfp_call_service_t; 463 464 465 typedef struct{ 466 uint8_t mode; 467 uint8_t format; 468 char name[17]; // enabled 469 } hfp_network_opearator_t; 470 471 472 typedef struct hfp_connection { 473 btstack_linked_item_t item; 474 475 bd_addr_t remote_addr; 476 hci_con_handle_t acl_handle; 477 hci_con_handle_t sco_handle; 478 uint16_t rfcomm_channel_nr; 479 uint16_t rfcomm_cid; 480 481 hfp_state_machine_t state_machine; 482 hfp_call_state_t call_state; 483 hfp_state_t state; 484 hfp_codecs_state_t codecs_state; 485 486 // needed for reestablishing connection 487 uint16_t service_uuid; 488 489 // used during service level connection establishment 490 hfp_command_t command; 491 hfp_parser_state_t parser_state; 492 int parser_item_index; 493 int parser_indicator_index; 494 uint8_t line_buffer[HFP_MAX_INDICATOR_DESC_SIZE]; 495 int line_size; 496 497 uint32_t remote_supported_features; 498 499 // TODO: rename into hf_codecs_nr 500 int remote_codecs_nr; 501 uint8_t remote_codecs[HFP_MAX_INDICATOR_DESC_SIZE]; 502 503 int ag_indicators_nr; 504 hfp_ag_indicator_t ag_indicators[HFP_MAX_INDICATOR_DESC_SIZE]; 505 uint32_t ag_indicators_status_update_bitmap; 506 uint8_t enable_status_update_for_ag_indicators; 507 508 int remote_call_services_nr; 509 hfp_call_service_t remote_call_services[HFP_MAX_INDICATOR_DESC_SIZE]; 510 511 // TODO: use bitmap. 512 int generic_status_indicators_nr; 513 uint32_t generic_status_update_bitmap; 514 hfp_generic_status_indicator_t generic_status_indicators[HFP_MAX_INDICATOR_DESC_SIZE]; 515 516 hfp_network_opearator_t network_operator; 517 518 // Retrieved during service level connection establishment, not used yet 519 uint8_t negotiated_codec; 520 521 // HF -> AG configuration 522 uint8_t clip_enabled; 523 uint8_t call_waiting_notification_enabled; 524 525 // TODO: put these bit flags in a bitmap 526 uint8_t ok_pending; 527 // uint8_t send_ok; 528 uint8_t send_error; 529 530 uint8_t keep_byte; 531 uint8_t ignore_value; 532 uint8_t resolve_byte; 533 534 uint8_t change_status_update_for_individual_ag_indicators; 535 uint8_t operator_name_changed; 536 537 uint8_t enable_extended_audio_gateway_error_report; 538 uint8_t extended_audio_gateway_error_value; 539 uint8_t extended_audio_gateway_error; 540 541 // establish codecs connection 542 uint8_t suggested_codec; 543 uint8_t codec_confirmed; 544 uint8_t sco_for_msbc_failed; 545 546 hfp_link_setttings_t link_setting; 547 548 uint8_t establish_audio_connection; 549 uint8_t release_audio_connection; 550 551 btstack_timer_source_t hfp_timeout; 552 553 uint8_t microphone_gain; 554 uint8_t send_microphone_gain; 555 556 uint8_t speaker_gain; 557 uint8_t send_speaker_gain; 558 559 uint8_t send_phone_number_for_voice_tag; 560 uint8_t send_ag_status_indicators; 561 uint8_t send_ag_indicators_segment; 562 uint8_t send_response_and_hold_status; // 0 - don't send. BRTH:0 == 1, .. 563 564 // AG only 565 uint8_t change_in_band_ring_tone_setting; 566 uint8_t ag_ring; 567 uint8_t ag_send_clip; 568 uint8_t ag_echo_and_noise_reduction; 569 uint8_t ag_activate_voice_recognition; 570 uint8_t ag_notify_incoming_call_waiting; 571 uint8_t send_subscriber_number; 572 uint8_t next_subscriber_number_to_send; 573 574 int send_status_of_current_calls; 575 int next_call_index; 576 577 // HF only 578 uint8_t hf_accept_sco; 579 hfp_hf_query_operator_state_t hf_query_operator_state; 580 uint8_t hf_answer_incoming_call; 581 uint8_t hf_initiate_outgoing_call; 582 uint8_t hf_initiate_memory_dialing; 583 uint8_t hf_initiate_redial_last_number; 584 int memory_id; 585 586 uint8_t hf_send_clip_enable; 587 uint8_t hf_send_chup; 588 uint8_t hf_send_chld_0; 589 uint8_t hf_send_chld_1; 590 uint8_t hf_send_chld_2; 591 uint8_t hf_send_chld_3; 592 uint8_t hf_send_chld_4; 593 uint8_t hf_send_chld_x; 594 uint8_t hf_send_chld_x_index; 595 char hf_send_dtmf_code; 596 uint8_t hf_send_binp; 597 uint8_t hf_send_clcc; 598 uint8_t hf_send_rrh; 599 char hf_send_rrh_command; 600 uint8_t hf_send_cnum; 601 602 uint8_t hf_activate_call_waiting_notification; 603 uint8_t hf_deactivate_call_waiting_notification; 604 605 uint8_t hf_activate_calling_line_notification; 606 uint8_t hf_deactivate_calling_line_notification; 607 uint8_t hf_activate_echo_canceling_and_noise_reduction; 608 uint8_t hf_deactivate_echo_canceling_and_noise_reduction; 609 uint8_t hf_activate_voice_recognition_notification; 610 uint8_t hf_deactivate_voice_recognition_notification; 611 612 uint8_t clcc_idx; 613 uint8_t clcc_dir; 614 uint8_t clcc_status; 615 uint8_t clcc_mode; 616 uint8_t clcc_mpty; 617 618 uint8_t call_index; 619 // also used for CLCC, CCWA, CLIP if set 620 uint8_t bnip_type; // 0 == not set 621 char bnip_number[25]; // 622 623 } hfp_connection_t; 624 625 // UTILS_START : TODO move to utils 626 int send_str_over_rfcomm(uint16_t cid, char * command); 627 int join(char * buffer, int buffer_size, uint8_t * values, int values_nr); 628 int join_bitmap(char * buffer, int buffer_size, uint32_t values, int values_nr); 629 int get_bit(uint16_t bitmap, int position); 630 int store_bit(uint32_t bitmap, int position, uint8_t value); 631 // UTILS_END 632 633 void hfp_set_callback(btstack_packet_handler_t callback); 634 635 void hfp_set_packet_handler_for_rfcomm_connections(btstack_packet_handler_t handler); 636 637 void hfp_create_sdp_record(uint8_t * service, uint32_t service_record_handle, uint16_t service_uuid, int rfcomm_channel_nr, const char * name); 638 void hfp_handle_hci_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 639 void hfp_emit_event(btstack_packet_handler_t callback, uint8_t event_subtype, uint8_t value); 640 void hfp_emit_simple_event(btstack_packet_handler_t callback, uint8_t event_subtype); 641 void hfp_emit_string_event(btstack_packet_handler_t callback, uint8_t event_subtype, const char * value); 642 void hfp_emit_slc_connection_event(btstack_packet_handler_t callback, uint8_t status, hci_con_handle_t con_handle, bd_addr_t addr); 643 644 hfp_connection_t * get_hfp_connection_context_for_rfcomm_cid(uint16_t cid); 645 hfp_connection_t * get_hfp_connection_context_for_bd_addr(bd_addr_t bd_addr); 646 hfp_connection_t * get_hfp_connection_context_for_sco_handle(uint16_t handle); 647 hfp_connection_t * get_hfp_connection_context_for_acl_handle(uint16_t handle); 648 649 btstack_linked_list_t * hfp_get_connections(void); 650 void hfp_parse(hfp_connection_t * connection, uint8_t byte, int isHandsFree); 651 652 void hfp_establish_service_level_connection(bd_addr_t bd_addr, uint16_t service_uuid); 653 void hfp_release_service_level_connection(hfp_connection_t * connection); 654 void hfp_reset_context_flags(hfp_connection_t * connection); 655 656 void hfp_release_audio_connection(hfp_connection_t * connection); 657 658 void hfp_setup_synchronous_connection(hfp_connection_t * connection); 659 int hfp_supports_codec(uint8_t codec, int codecs_nr, uint8_t * codecs); 660 661 const char * hfp_hf_feature(int index); 662 const char * hfp_ag_feature(int index); 663 664 #if defined __cplusplus 665 } 666 #endif 667 668 #endif // __BTSTACK_HFP_H 669