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