1 /* 2 * Copyright (C) 2009-2012 by Matthias Ringwald 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 MATTHIAS RINGWALD 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 [email protected] 34 * 35 */ 36 37 /* 38 * hci.h 39 * 40 * Created by Matthias Ringwald on 4/29/09. 41 * 42 */ 43 44 #ifndef __HCI_H 45 #define __HCI_H 46 47 #include "btstack-config.h" 48 49 #include <btstack/hci_cmds.h> 50 #include <btstack/utils.h> 51 #include "hci_transport.h" 52 #include "bt_control.h" 53 #include "remote_device_db.h" 54 55 #include <stdint.h> 56 #include <stdlib.h> 57 #include <stdarg.h> 58 #include <btstack/linked_list.h> 59 60 #if defined __cplusplus 61 extern "C" { 62 #endif 63 64 // packet header sizes 65 #define HCI_CMD_HEADER_SIZE 3 66 #define HCI_ACL_HEADER_SIZE 4 67 #define HCI_SCO_HEADER_SIZE 3 68 #define HCI_EVENT_HEADER_SIZE 2 69 70 // packet sizes (max payload) 71 #define HCI_ACL_DM1_SIZE 17 72 #define HCI_ACL_DH1_SIZE 27 73 #define HCI_ACL_2DH1_SIZE 54 74 #define HCI_ACL_3DH1_SIZE 83 75 #define HCI_ACL_DM3_SIZE 121 76 #define HCI_ACL_DH3_SIZE 183 77 #define HCI_ACL_DM5_SIZE 224 78 #define HCI_ACL_DH5_SIZE 339 79 #define HCI_ACL_2DH3_SIZE 367 80 #define HCI_ACL_3DH3_SIZE 552 81 #define HCI_ACL_2DH5_SIZE 679 82 #define HCI_ACL_3DH5_SIZE 1021 83 84 #define HCI_EVENT_PAYLOAD_SIZE 255 85 #define HCI_CMD_PAYLOAD_SIZE 255 86 87 #define LE_ADVERTISING_DATA_SIZE 31 88 89 // packet buffer sizes 90 // HCI_ACL_PAYLOAD_SIZE is configurable and defined in config.h 91 #define HCI_EVENT_BUFFER_SIZE (HCI_EVENT_HEADER_SIZE + HCI_EVENT_PAYLOAD_SIZE) 92 #define HCI_CMD_BUFFER_SIZE (HCI_CMD_HEADER_SIZE + HCI_CMD_PAYLOAD_SIZE) 93 #define HCI_ACL_BUFFER_SIZE (HCI_ACL_HEADER_SIZE + HCI_ACL_PAYLOAD_SIZE) 94 95 // size of hci buffers, big enough for command, event, or acl packet without H4 packet type 96 // @note cmd buffer is bigger than event buffer 97 #ifdef HCI_PACKET_BUFFER_SIZE 98 #if HCI_PACKET_BUFFER_SIZE < HCI_ACL_BUFFER_SIZE 99 #error HCI_PACKET_BUFFER_SIZE must be equal or larger than HCI_ACL_BUFFER_SIZE 100 #endif 101 #if HCI_PACKET_BUFFER_SIZE < HCI_CMD_BUFFER_SIZE 102 #error HCI_PACKET_BUFFER_SIZE must be equal or larger than HCI_CMD_BUFFER_SIZE 103 #endif 104 #else 105 #if HCI_ACL_BUFFER_SIZE > HCI_CMD_BUFFER_SIZE 106 #define HCI_PACKET_BUFFER_SIZE HCI_ACL_BUFFER_SIZE 107 #else 108 #define HCI_PACKET_BUFFER_SIZE HCI_CMD_BUFFER_SIZE 109 #endif 110 #endif 111 112 // additional pre-buffer space for packets to Bluetooth module, for now, used for HCI Transport H4 DMA 113 #define HCI_OUTGOING_PRE_BUFFER_SIZE 1 114 115 // BNEP may uncompress the IP Header by 16 bytes 116 #ifdef HAVE_BNEP 117 #define HCI_INCOMING_PRE_BUFFER_SIZE (16 - HCI_ACL_HEADER_SIZE - 4) 118 #endif 119 #ifndef HCI_INCOMING_PRE_BUFFER_SIZE 120 #define HCI_INCOMING_PRE_BUFFER_SIZE 0 121 #endif 122 123 // OGFs 124 #define OGF_LINK_CONTROL 0x01 125 #define OGF_LINK_POLICY 0x02 126 #define OGF_CONTROLLER_BASEBAND 0x03 127 #define OGF_INFORMATIONAL_PARAMETERS 0x04 128 #define OGF_STATUS_PARAMETERS 0x05 129 #define OGF_LE_CONTROLLER 0x08 130 #define OGF_BTSTACK 0x3d 131 #define OGF_VENDOR 0x3f 132 133 // cmds for BTstack 134 // get state: @returns HCI_STATE 135 #define BTSTACK_GET_STATE 0x01 136 137 // set power mode: @param HCI_POWER_MODE 138 #define BTSTACK_SET_POWER_MODE 0x02 139 140 // set capture mode: @param on 141 #define BTSTACK_SET_ACL_CAPTURE_MODE 0x03 142 143 // get BTstack version 144 #define BTSTACK_GET_VERSION 0x04 145 146 // get system Bluetooth state 147 #define BTSTACK_GET_SYSTEM_BLUETOOTH_ENABLED 0x05 148 149 // set system Bluetooth state 150 #define BTSTACK_SET_SYSTEM_BLUETOOTH_ENABLED 0x06 151 152 // enable inquiry scan for this client 153 #define BTSTACK_SET_DISCOVERABLE 0x07 154 155 // set global Bluetooth state 156 #define BTSTACK_SET_BLUETOOTH_ENABLED 0x08 157 158 // create l2cap channel: @param bd_addr(48), psm (16) 159 #define L2CAP_CREATE_CHANNEL 0x20 160 161 // disconnect l2cap disconnect, @param channel(16), reason(8) 162 #define L2CAP_DISCONNECT 0x21 163 164 // register l2cap service: @param psm(16), mtu (16) 165 #define L2CAP_REGISTER_SERVICE 0x22 166 167 // unregister l2cap disconnect, @param psm(16) 168 #define L2CAP_UNREGISTER_SERVICE 0x23 169 170 // accept connection @param bd_addr(48), dest cid (16) 171 #define L2CAP_ACCEPT_CONNECTION 0x24 172 173 // decline l2cap disconnect,@param bd_addr(48), dest cid (16), reason(8) 174 #define L2CAP_DECLINE_CONNECTION 0x25 175 176 // create l2cap channel: @param bd_addr(48), psm (16), mtu (16) 177 #define L2CAP_CREATE_CHANNEL_MTU 0x26 178 179 // register SDP Service Record: service record (size) 180 #define SDP_REGISTER_SERVICE_RECORD 0x30 181 182 // unregister SDP Service Record 183 #define SDP_UNREGISTER_SERVICE_RECORD 0x31 184 185 // Get remote RFCOMM services 186 #define SDP_CLIENT_QUERY_RFCOMM_SERVICES 0x32 187 188 // Get remote SDP services 189 #define SDP_CLIENT_QUERY_SERVICES 0x33 190 191 // RFCOMM "HCI" Commands 192 #define RFCOMM_CREATE_CHANNEL 0x40 193 #define RFCOMM_DISCONNECT 0x41 194 #define RFCOMM_REGISTER_SERVICE 0x42 195 #define RFCOMM_UNREGISTER_SERVICE 0x43 196 #define RFCOMM_ACCEPT_CONNECTION 0x44 197 #define RFCOMM_DECLINE_CONNECTION 0x45 198 #define RFCOMM_PERSISTENT_CHANNEL 0x46 199 #define RFCOMM_CREATE_CHANNEL_WITH_CREDITS 0x47 200 #define RFCOMM_REGISTER_SERVICE_WITH_CREDITS 0x48 201 #define RFCOMM_GRANT_CREDITS 0x49 202 203 // GAP Classic 0x50 204 #define GAP_DISCONNECT 0x50 205 206 // GAP LE 0x60 207 #define GAP_LE_SCAN_START 0x60 208 #define GAP_LE_SCAN_STOP 0x61 209 #define GAP_LE_CONNECT 0x62 210 #define GAP_LE_CONNECT_CANCEL 0x63 211 #define GAP_LE_SET_SCAN_PARAMETERS 0x64 212 213 // GATT (Client) 0x70 214 #define GATT_DISCOVER_ALL_PRIMARY_SERVICES 0x70 215 #define GATT_DISCOVER_PRIMARY_SERVICES_BY_UUID16 0x71 216 #define GATT_DISCOVER_PRIMARY_SERVICES_BY_UUID128 0x72 217 #define GATT_FIND_INCLUDED_SERVICES_FOR_SERVICE 0x73 218 #define GATT_DISCOVER_CHARACTERISTICS_FOR_SERVICE 0x74 219 #define GATT_DISCOVER_CHARACTERISTICS_FOR_SERVICE_BY_UUID128 0x75 220 #define GATT_DISCOVER_CHARACTERISTIC_DESCRIPTORS 0x76 221 #define GATT_READ_VALUE_OF_CHARACTERISTIC 0x77 222 #define GATT_READ_LONG_VALUE_OF_CHARACTERISTIC 0x78 223 #define GATT_WRITE_VALUE_OF_CHARACTERISTIC_WITHOUT_RESPONSE 0x79 224 #define GATT_WRITE_VALUE_OF_CHARACTERISTIC 0x7A 225 #define GATT_WRITE_LONG_VALUE_OF_CHARACTERISTIC 0x7B 226 #define GATT_RELIABLE_WRITE_LONG_VALUE_OF_CHARACTERISTIC 0x7C 227 #define GATT_READ_CHARACTERISTIC_DESCRIPTOR 0X7D 228 #define GATT_READ_LONG_CHARACTERISTIC_DESCRIPTOR 0X7E 229 #define GATT_WRITE_CHARACTERISTIC_DESCRIPTOR 0X7F 230 #define GATT_WRITE_LONG_CHARACTERISTIC_DESCRIPTOR 0X80 231 #define GATT_WRITE_CLIENT_CHARACTERISTIC_CONFIGURATION 0X81 232 233 // 234 #define IS_COMMAND(packet, command) (READ_BT_16(packet,0) == command.opcode) 235 236 // data: event(8) 237 #define DAEMON_EVENT_CONNECTION_OPENED 0x50 238 239 // data: event(8) 240 #define DAEMON_EVENT_CONNECTION_CLOSED 0x51 241 242 // data: event(8), nr_connections(8) 243 #define DAEMON_NR_CONNECTIONS_CHANGED 0x52 244 245 // data: event(8) 246 #define DAEMON_EVENT_NEW_RFCOMM_CREDITS 0x53 247 248 // data: event(8) 249 #define DAEMON_EVENT_HCI_PACKET_SENT 0x54 250 251 /** 252 * LE connection parameter update state 253 */ 254 255 typedef enum { 256 CON_PARAMETER_UPDATE_NONE, 257 CON_PARAMETER_UPDATE_SEND_RESPONSE, 258 CON_PARAMETER_UPDATE_CHANGE_HCI_CON_PARAMETERS, 259 CON_PARAMETER_UPDATE_DENY 260 } le_con_parameter_update_state_t; 261 262 typedef struct le_connection_parameter_range{ 263 uint16_t le_conn_interval_min; 264 uint16_t le_conn_interval_max; 265 uint16_t le_conn_latency_min; 266 uint16_t le_conn_latency_max; 267 uint16_t le_supervision_timeout_min; 268 uint16_t le_supervision_timeout_max; 269 } le_connection_parameter_range_t; 270 271 // Authentication flags 272 typedef enum { 273 AUTH_FLAGS_NONE = 0x0000, 274 RECV_LINK_KEY_REQUEST = 0x0001, 275 HANDLE_LINK_KEY_REQUEST = 0x0002, 276 SENT_LINK_KEY_REPLY = 0x0004, 277 SENT_LINK_KEY_NEGATIVE_REQUEST = 0x0008, 278 RECV_LINK_KEY_NOTIFICATION = 0x0010, 279 DENY_PIN_CODE_REQUEST = 0x0040, 280 RECV_IO_CAPABILITIES_REQUEST = 0x0080, 281 SEND_IO_CAPABILITIES_REPLY = 0x0100, 282 SEND_USER_CONFIRM_REPLY = 0x0200, 283 SEND_USER_PASSKEY_REPLY = 0x0400, 284 285 // pairing status 286 LEGACY_PAIRING_ACTIVE = 0x2000, 287 SSP_PAIRING_ACTIVE = 0x4000, 288 289 // connection status 290 CONNECTION_ENCRYPTED = 0x8000, 291 } hci_authentication_flags_t; 292 293 /** 294 * Connection State 295 */ 296 typedef enum { 297 SEND_CREATE_CONNECTION = 0, 298 SENT_CREATE_CONNECTION, 299 SEND_CANCEL_CONNECTION, 300 SENT_CANCEL_CONNECTION, 301 RECEIVED_CONNECTION_REQUEST, 302 ACCEPTED_CONNECTION_REQUEST, 303 REJECTED_CONNECTION_REQUEST, 304 OPEN, 305 SEND_DISCONNECT, 306 SENT_DISCONNECT 307 } CONNECTION_STATE; 308 309 // bonding flags 310 enum { 311 BONDING_REQUEST_REMOTE_FEATURES = 0x01, 312 BONDING_RECEIVED_REMOTE_FEATURES = 0x02, 313 BONDING_REMOTE_SUPPORTS_SSP = 0x04, 314 BONDING_DISCONNECT_SECURITY_BLOCK = 0x08, 315 BONDING_DISCONNECT_DEDICATED_DONE = 0x10, 316 BONDING_SEND_AUTHENTICATE_REQUEST = 0x20, 317 BONDING_SEND_ENCRYPTION_REQUEST = 0x40, 318 BONDING_DEDICATED = 0x80, 319 BONDING_EMIT_COMPLETE_ON_DISCONNECT = 0x100 320 }; 321 322 typedef enum { 323 BLUETOOTH_OFF = 1, 324 BLUETOOTH_ON, 325 BLUETOOTH_ACTIVE 326 } BLUETOOTH_STATE; 327 328 // le central scanning state 329 typedef enum { 330 LE_SCAN_IDLE, 331 LE_START_SCAN, 332 LE_SCANNING, 333 LE_STOP_SCAN, 334 } le_scanning_state_t; 335 336 337 typedef struct { 338 // linked list - assert: first field 339 linked_item_t item; 340 341 // remote side 342 bd_addr_t address; 343 344 // module handle 345 hci_con_handle_t con_handle; 346 347 // le public, le random, classic 348 bd_addr_type_t address_type; 349 350 // connection state 351 CONNECTION_STATE state; 352 353 // bonding 354 uint16_t bonding_flags; 355 uint8_t bonding_status; 356 // requested security level 357 gap_security_level_t requested_security_level; 358 359 // 360 link_key_type_t link_key_type; 361 362 // errands 363 uint32_t authentication_flags; 364 365 timer_source_t timeout; 366 367 #ifdef HAVE_TIME 368 // timer 369 struct timeval timestamp; 370 #endif 371 #ifdef HAVE_TICK 372 uint32_t timestamp; // timeout in system ticks 373 #endif 374 375 // ACL packet recombination - PRE_BUFFER + ACL Header + ACL payload 376 uint8_t acl_recombination_buffer[HCI_INCOMING_PRE_BUFFER_SIZE + 4 + HCI_ACL_BUFFER_SIZE]; 377 uint16_t acl_recombination_pos; 378 uint16_t acl_recombination_length; 379 380 // number ACL packets sent to controller 381 uint8_t num_acl_packets_sent; 382 383 // connection parameter update 384 le_con_parameter_update_state_t le_con_parameter_update_state; 385 uint16_t le_conn_interval_min; 386 uint16_t le_conn_interval_max; 387 uint16_t le_conn_latency; 388 uint16_t le_supervision_timeout; 389 uint16_t le_update_con_parameter_response; 390 } hci_connection_t; 391 392 393 /** 394 * main data structure 395 */ 396 typedef struct { 397 // transport component with configuration 398 hci_transport_t * hci_transport; 399 void * config; 400 401 // bsic configuration 402 const char * local_name; 403 uint32_t class_of_device; 404 bd_addr_t local_bd_addr; 405 uint8_t ssp_enable; 406 uint8_t ssp_io_capability; 407 uint8_t ssp_authentication_requirement; 408 uint8_t ssp_auto_accept; 409 410 // hardware power controller 411 bt_control_t * control; 412 413 // list of existing baseband connections 414 linked_list_t connections; 415 416 // single buffer for HCI packet assembly + additional prebuffer for H4 drivers 417 uint8_t hci_packet_buffer_prefix[HCI_OUTGOING_PRE_BUFFER_SIZE]; 418 uint8_t hci_packet_buffer[HCI_PACKET_BUFFER_SIZE]; // opcode (16), len(8) 419 uint8_t hci_packet_buffer_reserved; 420 uint16_t acl_fragmentation_pos; 421 uint16_t acl_fragmentation_total_size; 422 423 /* host to controller flow control */ 424 uint8_t num_cmd_packets; 425 // uint8_t total_num_cmd_packets; 426 uint8_t acl_packets_total_num; 427 uint16_t acl_data_packet_length; 428 uint8_t le_acl_packets_total_num; 429 uint16_t le_data_packets_length; 430 431 /* local supported features */ 432 uint8_t local_supported_features[8]; 433 434 // usable packet types given acl_data_packet_length and HCI_ACL_BUFFER_SIZE 435 uint16_t packet_types; 436 437 /* callback to L2CAP layer */ 438 void (*packet_handler)(uint8_t packet_type, uint8_t *packet, uint16_t size); 439 440 /* remote device db */ 441 remote_device_db_t const*remote_device_db; 442 443 /* hci state machine */ 444 HCI_STATE state; 445 uint8_t substate; 446 uint8_t cmds_ready; 447 448 uint16_t last_cmd_opcode; 449 450 uint8_t discoverable; 451 uint8_t connectable; 452 uint8_t bondable; 453 454 /* buffer for scan enable cmd - 0xff no change */ 455 uint8_t new_scan_enable_value; 456 457 // buffer for single connection decline 458 uint8_t decline_reason; 459 bd_addr_t decline_addr; 460 461 uint8_t adv_addr_type; 462 bd_addr_t adv_address; 463 464 le_scanning_state_t le_scanning_state; 465 466 // buffer for le scan type command - 0xff not set 467 uint8_t le_scan_type; 468 uint16_t le_scan_interval; 469 uint16_t le_scan_window; 470 471 le_connection_parameter_range_t le_connection_parameter_range; 472 } hci_stack_t; 473 474 /** 475 * set connection iterator 476 */ 477 void hci_connections_get_iterator(linked_list_iterator_t *it); 478 479 le_connection_parameter_range_t gap_le_get_connection_parameter_range(); 480 void gap_le_set_connection_parameter_range(le_connection_parameter_range_t range); 481 482 // *************** le client start 483 484 le_command_status_t le_central_start_scan(void); 485 le_command_status_t le_central_stop_scan(void); 486 le_command_status_t le_central_connect(bd_addr_t * addr, bd_addr_type_t addr_type); 487 le_command_status_t le_central_connect_cancel(void); 488 le_command_status_t gap_disconnect(hci_con_handle_t handle); 489 void le_central_set_scan_parameters(uint8_t scan_type, uint16_t scan_interval, uint16_t scan_window); 490 491 // *************** le client end 492 493 // create and send hci command packets based on a template and a list of parameters 494 uint16_t hci_create_cmd(uint8_t *hci_cmd_buffer, hci_cmd_t *cmd, ...); 495 uint16_t hci_create_cmd_internal(uint8_t *hci_cmd_buffer, const hci_cmd_t *cmd, va_list argptr); 496 497 void hci_connectable_control(uint8_t enable); 498 void hci_close(void); 499 500 /** 501 * run the hci control loop once 502 */ 503 void hci_run(void); 504 505 // send complete CMD packet 506 int hci_send_cmd_packet(uint8_t *packet, int size); 507 508 // send ACL packet prepared in hci packet buffer 509 int hci_send_acl_packet_buffer(int size); 510 511 // new functions replacing hci_can_send_packet_now[_using_packet_buffer] 512 int hci_can_send_command_packet_now(void); 513 int hci_can_send_acl_packet_now(hci_con_handle_t con_handle); 514 int hci_can_send_prepared_acl_packet_now(hci_con_handle_t con_handle); 515 516 // non-blocking UART driver needs 517 // @deprecated use hci_can_send_X_now instead 518 int hci_can_send_packet_now(uint8_t packet_type); 519 520 // same as hci_can_send_packet_now, but also checks if packet buffer is free for use 521 // @deprecated use hci_can_send_X_now instead 522 int hci_can_send_packet_now_using_packet_buffer(uint8_t packet_type); 523 524 // reserves outgoing packet buffer. @returns 1 if successful 525 int hci_reserve_packet_buffer(void); 526 void hci_release_packet_buffer(void); 527 528 // used for internal checks in l2cap[-le].c 529 int hci_is_packet_buffer_reserved(void); 530 531 // get point to packet buffer 532 uint8_t* hci_get_outgoing_packet_buffer(void); 533 534 bd_addr_t * hci_local_bd_addr(void); 535 hci_connection_t * hci_connection_for_handle(hci_con_handle_t con_handle); 536 hci_connection_t * hci_connection_for_bd_addr_and_type(bd_addr_t *addr, bd_addr_type_t addr_type); 537 int hci_is_le_connection(hci_connection_t * connection); 538 uint8_t hci_number_outgoing_packets(hci_con_handle_t handle); 539 uint8_t hci_number_free_acl_slots_for_handle(hci_con_handle_t con_handle); 540 int hci_authentication_active_for_handle(hci_con_handle_t handle); 541 uint16_t hci_max_acl_data_packet_length(void); 542 uint16_t hci_max_acl_le_data_packet_length(void); 543 uint16_t hci_usable_acl_packet_types(void); 544 int hci_non_flushable_packet_boundary_flag_supported(void); 545 546 void hci_disconnect_all(void); 547 548 void hci_emit_state(void); 549 void hci_emit_connection_complete(hci_connection_t *conn, uint8_t status); 550 void hci_emit_l2cap_check_timeout(hci_connection_t *conn); 551 void hci_emit_disconnection_complete(uint16_t handle, uint8_t reason); 552 void hci_emit_nr_connections_changed(void); 553 void hci_emit_hci_open_failed(void); 554 void hci_emit_btstack_version(void); 555 void hci_emit_system_bluetooth_enabled(uint8_t enabled); 556 void hci_emit_remote_name_cached(bd_addr_t *addr, device_name_t *name); 557 void hci_emit_discoverable_enabled(uint8_t enabled); 558 void hci_emit_security_level(hci_con_handle_t con_handle, gap_security_level_t level); 559 void hci_emit_dedicated_bonding_result(bd_addr_t address, uint8_t status); 560 561 // query if remote side supports SSP 562 // query if the local side supports SSP 563 int hci_local_ssp_activated(void); 564 565 // query if the remote side supports SSP 566 int hci_remote_ssp_supported(hci_con_handle_t con_handle); 567 568 // query if both sides support SSP 569 int hci_ssp_supported_on_both_sides(hci_con_handle_t handle); 570 571 // disable automatic l2cap disconnect for testing 572 void hci_disable_l2cap_timeout_check(void); 573 574 // disconnect because of security block 575 void hci_disconnect_security_block(hci_con_handle_t con_handle); 576 577 /** Embedded API **/ 578 579 // Set up HCI. Needs to be called before any other function 580 void hci_init(hci_transport_t *transport, void *config, bt_control_t *control, remote_device_db_t const* remote_device_db); 581 582 // Set class of device that will be set during Bluetooth init 583 void hci_set_class_of_device(uint32_t class_of_device); 584 585 // Registers a packet handler. Used if L2CAP is not used (rarely). 586 void hci_register_packet_handler(void (*handler)(uint8_t packet_type, uint8_t *packet, uint16_t size)); 587 588 // Requests the change of BTstack power mode. 589 int hci_power_control(HCI_POWER_MODE mode); 590 591 // Allows to control if device is discoverable. OFF by default. 592 void hci_discoverable_control(uint8_t enable); 593 594 // Creates and sends HCI command packets based on a template and 595 // a list of parameters. Will return error if outgoing data buffer 596 // is occupied. 597 int hci_send_cmd(const hci_cmd_t *cmd, ...); 598 599 // Deletes link key for remote device with baseband address. 600 void hci_drop_link_key_for_bd_addr(bd_addr_t *addr); 601 602 // Configure Secure Simple Pairing 603 604 // enable will enable SSP during init 605 void hci_ssp_set_enable(int enable); 606 607 // if set, BTstack will respond to io capability request using authentication requirement 608 void hci_ssp_set_io_capability(int ssp_io_capability); 609 void hci_ssp_set_authentication_requirement(int authentication_requirement); 610 611 // if set, BTstack will confirm a numberic comparion and enter '000000' if requested 612 void hci_ssp_set_auto_accept(int auto_accept); 613 614 // get addr type and address used in advertisement packets 615 void hci_le_advertisement_address(uint8_t * addr_type, bd_addr_t * addr); 616 617 618 #if defined __cplusplus 619 } 620 #endif 621 622 #endif // __HCI_H 623