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 * hci.h 40 * 41 * Created by Matthias Ringwald on 4/29/09. 42 * 43 */ 44 45 #ifndef __HCI_H 46 #define __HCI_H 47 48 #include "btstack_config.h" 49 50 #include "btstack_chipset.h" 51 #include "btstack_control.h" 52 #include "btstack_linked_list.h" 53 #include "btstack_util.h" 54 #include "classic/btstack_link_key_db.h" 55 #include "hci_cmd.h" 56 #include "gap.h" 57 #include "hci_transport.h" 58 59 #ifdef ENABLE_BLE 60 #include "ble/att_db.h" 61 #endif 62 63 #include <stdint.h> 64 #include <stdlib.h> 65 #include <stdarg.h> 66 67 #if defined __cplusplus 68 extern "C" { 69 #endif 70 71 // packet buffer sizes 72 73 // Max HCI Command LE payload size: 74 // 64 from LE Generate DHKey command 75 // 32 from LE Encrypt command 76 #if defined(ENABLE_LE_SECURE_CONNECTIONS) && !defined(ENABLE_MICRO_ECC_FOR_LE_SECURE_CONNECTIONS) 77 #define HCI_CMD_PAYLOAD_SIZE_LE 64 78 #else 79 #define HCI_CMD_PAYLOAD_SIZE_LE 32 80 #endif 81 82 // HCI_ACL_PAYLOAD_SIZE is configurable and defined in config.h 83 // addition byte in even to terminate remote name request with '\0' 84 #define HCI_EVENT_BUFFER_SIZE (HCI_EVENT_HEADER_SIZE + HCI_EVENT_PAYLOAD_SIZE + 1) 85 86 #ifdef ENABLE_CLASSIC 87 #define HCI_CMD_BUFFER_SIZE (HCI_CMD_HEADER_SIZE + HCI_CMD_PAYLOAD_SIZE) 88 #else 89 #define HCI_CMD_BUFFER_SIZE (HCI_CMD_HEADER_SIZE + HCI_CMD_PAYLOAD_SIZE_LE) 90 #endif 91 92 #define HCI_ACL_BUFFER_SIZE (HCI_ACL_HEADER_SIZE + HCI_ACL_PAYLOAD_SIZE) 93 94 // size of hci incoming buffer, big enough for event or acl packet without H4 packet type 95 #ifdef HCI_INCOMING_PACKET_BUFFER_SIZE 96 #if HCI_INCOMING_PACKET_BUFFER_SIZE < HCI_ACL_BUFFER_SIZE 97 #error HCI_INCOMING_PACKET_BUFFER_SIZE must be equal or larger than HCI_ACL_BUFFER_SIZE 98 #endif 99 #if HCI_INCOMING_PACKET_BUFFER_SIZE < HCI_EVENT_BUFFER_SIZE 100 #error HCI_INCOMING_PACKET_BUFFER_SIZE must be equal or larger than HCI_EVENT_BUFFER_SIZE 101 #endif 102 #else 103 #if HCI_ACL_BUFFER_SIZE > HCI_EVENT_BUFFER_SIZE 104 #define HCI_INCOMING_PACKET_BUFFER_SIZE HCI_ACL_BUFFER_SIZE 105 #else 106 #define HCI_INCOMING_PACKET_BUFFER_SIZE HCI_EVENT_BUFFER_SIZE 107 #endif 108 #endif 109 110 // size of hci outgoing buffer, big enough for command or acl packet without H4 packet type 111 #ifdef HCI_OUTGOING_PACKET_BUFFER_SIZE 112 #if HCI_OUTGOING_PACKET_BUFFER_SIZE < HCI_ACL_BUFFER_SIZE 113 #error HCI_OUTGOING_PACKET_BUFFER_SIZE must be equal or larger than HCI_ACL_BUFFER_SIZE 114 #endif 115 #if HCI_OUTGOING_PACKET_BUFFER_SIZE < HCI_CMD_BUFFER_SIZE 116 #error HCI_OUTGOING_PACKET_BUFFER_SIZE must be equal or larger than HCI_CMD_BUFFER_SIZE 117 #endif 118 #else 119 #if HCI_ACL_BUFFER_SIZE > HCI_CMD_BUFFER_SIZE 120 #define HCI_OUTGOING_PACKET_BUFFER_SIZE HCI_ACL_BUFFER_SIZE 121 #else 122 #define HCI_OUTGOING_PACKET_BUFFER_SIZE HCI_CMD_BUFFER_SIZE 123 #endif 124 #endif 125 126 // additional pre-buffer space for packets to Bluetooth module, for now, used for HCI Transport H4 DMA 127 #ifndef HCI_OUTGOING_PRE_BUFFER_SIZE 128 #ifdef HAVE_HOST_CONTROLLER_API 129 #define HCI_OUTGOING_PRE_BUFFER_SIZE 0 130 #else 131 #define HCI_OUTGOING_PRE_BUFFER_SIZE 1 132 #endif 133 #endif 134 135 // BNEP may uncompress the IP Header by 16 bytes 136 #ifndef HCI_INCOMING_PRE_BUFFER_SIZE 137 #ifdef ENABLE_CLASSIC 138 #define HCI_INCOMING_PRE_BUFFER_SIZE (16 - HCI_ACL_HEADER_SIZE - 4) 139 #else 140 #define HCI_INCOMING_PRE_BUFFER_SIZE 0 141 #endif 142 #endif 143 144 // 145 #define IS_COMMAND(packet, command) (little_endian_read_16(packet,0) == command.opcode) 146 147 // check if command complete event for given command 148 #define HCI_EVENT_IS_COMMAND_COMPLETE(event,cmd) ( event[0] == HCI_EVENT_COMMAND_COMPLETE && little_endian_read_16(event,3) == cmd.opcode) 149 #define HCI_EVENT_IS_COMMAND_STATUS(event,cmd) ( event[0] == HCI_EVENT_COMMAND_STATUS && little_endian_read_16(event,4) == cmd.opcode) 150 151 // Code+Len=2, Pkts+Opcode=3; total=5 152 #define OFFSET_OF_DATA_IN_COMMAND_COMPLETE 5 153 154 // ACL Packet 155 #define READ_ACL_CONNECTION_HANDLE( buffer ) ( little_endian_read_16(buffer,0) & 0x0fff) 156 #define READ_SCO_CONNECTION_HANDLE( buffer ) ( little_endian_read_16(buffer,0) & 0x0fff) 157 #define READ_ACL_FLAGS( buffer ) ( buffer[1] >> 4 ) 158 #define READ_ACL_LENGTH( buffer ) (little_endian_read_16(buffer, 2)) 159 160 // Sneak peak into L2CAP Packet 161 #define READ_L2CAP_LENGTH(buffer) ( little_endian_read_16(buffer, 4)) 162 #define READ_L2CAP_CHANNEL_ID(buffer) ( little_endian_read_16(buffer, 6)) 163 164 /** 165 * LE connection parameter update state 166 */ 167 168 typedef enum { 169 CON_PARAMETER_UPDATE_NONE, 170 // L2CAP 171 CON_PARAMETER_UPDATE_SEND_REQUEST, 172 CON_PARAMETER_UPDATE_SEND_RESPONSE, 173 CON_PARAMETER_UPDATE_CHANGE_HCI_CON_PARAMETERS, 174 CON_PARAMETER_UPDATE_DENY, 175 // HCI - in respnose to HCI_SUBEVENT_LE_REMOTE_CONNECTION_PARAMETER_REQUEST 176 CON_PARAMETER_UPDATE_REPLY, 177 CON_PARAMETER_UPDATE_NEGATIVE_REPLY, 178 } le_con_parameter_update_state_t; 179 180 // Authentication flags 181 typedef enum { 182 AUTH_FLAGS_NONE = 0x0000, 183 RECV_LINK_KEY_REQUEST = 0x0001, 184 HANDLE_LINK_KEY_REQUEST = 0x0002, 185 SENT_LINK_KEY_REPLY = 0x0004, 186 SENT_LINK_KEY_NEGATIVE_REQUEST = 0x0008, 187 RECV_LINK_KEY_NOTIFICATION = 0x0010, 188 DENY_PIN_CODE_REQUEST = 0x0040, 189 RECV_IO_CAPABILITIES_REQUEST = 0x0080, 190 SEND_IO_CAPABILITIES_REPLY = 0x0100, 191 SEND_USER_CONFIRM_REPLY = 0x0200, 192 SEND_USER_PASSKEY_REPLY = 0x0400, 193 194 // pairing status 195 LEGACY_PAIRING_ACTIVE = 0x2000, 196 SSP_PAIRING_ACTIVE = 0x4000, 197 198 // connection status 199 CONNECTION_ENCRYPTED = 0x8000, 200 } hci_authentication_flags_t; 201 202 /** 203 * Connection State 204 */ 205 typedef enum { 206 SEND_CREATE_CONNECTION = 0, 207 SENT_CREATE_CONNECTION, 208 SEND_CANCEL_CONNECTION, 209 SENT_CANCEL_CONNECTION, 210 RECEIVED_CONNECTION_REQUEST, 211 ACCEPTED_CONNECTION_REQUEST, 212 REJECTED_CONNECTION_REQUEST, 213 OPEN, 214 SEND_DISCONNECT, 215 SENT_DISCONNECT, 216 RECEIVED_DISCONNECTION_COMPLETE 217 } CONNECTION_STATE; 218 219 // bonding flags 220 enum { 221 BONDING_REQUEST_REMOTE_FEATURES = 0x01, 222 BONDING_RECEIVED_REMOTE_FEATURES = 0x02, 223 BONDING_REMOTE_SUPPORTS_SSP = 0x04, 224 BONDING_DISCONNECT_SECURITY_BLOCK = 0x08, 225 BONDING_DISCONNECT_DEDICATED_DONE = 0x10, 226 BONDING_SEND_AUTHENTICATE_REQUEST = 0x20, 227 BONDING_SEND_ENCRYPTION_REQUEST = 0x40, 228 BONDING_DEDICATED = 0x80, 229 BONDING_EMIT_COMPLETE_ON_DISCONNECT = 0x100 230 }; 231 232 typedef enum { 233 BLUETOOTH_OFF = 1, 234 BLUETOOTH_ON, 235 BLUETOOTH_ACTIVE 236 } BLUETOOTH_STATE; 237 238 typedef enum { 239 LE_CONNECTING_IDLE, 240 LE_CONNECTING_DIRECT, 241 LE_CONNECTING_WHITELIST, 242 } le_connecting_state_t; 243 244 #ifdef ENABLE_BLE 245 246 // 247 // SM internal types and globals 248 // 249 250 typedef enum { 251 252 // general states 253 SM_GENERAL_IDLE, 254 SM_GENERAL_SEND_PAIRING_FAILED, 255 SM_GENERAL_TIMEOUT, // no other security messages are exchanged 256 257 // Phase 1: Pairing Feature Exchange 258 SM_PH1_W4_USER_RESPONSE, 259 260 // Phase 2: Authenticating and Encrypting 261 262 // get random number for use as TK Passkey if we show it 263 SM_PH2_GET_RANDOM_TK, 264 SM_PH2_W4_RANDOM_TK, 265 266 // get local random number for confirm c1 267 SM_PH2_C1_GET_RANDOM_A, 268 SM_PH2_C1_W4_RANDOM_A, 269 SM_PH2_C1_GET_RANDOM_B, 270 SM_PH2_C1_W4_RANDOM_B, 271 272 // calculate confirm value for local side 273 SM_PH2_C1_GET_ENC_A, 274 SM_PH2_C1_W4_ENC_A, 275 276 // calculate confirm value for remote side 277 SM_PH2_C1_GET_ENC_C, 278 SM_PH2_C1_W4_ENC_C, 279 280 SM_PH2_C1_SEND_PAIRING_CONFIRM, 281 SM_PH2_SEND_PAIRING_RANDOM, 282 283 // calc STK 284 SM_PH2_CALC_STK, 285 SM_PH2_W4_STK, 286 287 SM_PH2_W4_CONNECTION_ENCRYPTED, 288 289 // Phase 3: Transport Specific Key Distribution 290 // calculate DHK, Y, EDIV, and LTK 291 SM_PH3_Y_GET_ENC, 292 SM_PH3_Y_W4_ENC, 293 SM_PH3_LTK_GET_ENC, 294 295 // exchange keys 296 SM_PH3_DISTRIBUTE_KEYS, 297 SM_PH3_RECEIVE_KEYS, 298 299 // RESPONDER ROLE 300 SM_RESPONDER_IDLE, 301 SM_RESPONDER_SEND_SECURITY_REQUEST, 302 SM_RESPONDER_PH0_RECEIVED_LTK_REQUEST, 303 SM_RESPONDER_PH0_RECEIVED_LTK_W4_IRK, 304 SM_RESPONDER_PH0_SEND_LTK_REQUESTED_NEGATIVE_REPLY, 305 SM_RESPONDER_PH1_W4_PAIRING_REQUEST, 306 SM_RESPONDER_PH1_PAIRING_REQUEST_RECEIVED, 307 SM_RESPONDER_PH1_SEND_PAIRING_RESPONSE, 308 SM_RESPONDER_PH1_W4_PAIRING_CONFIRM, 309 SM_RESPONDER_PH2_W4_PAIRING_RANDOM, 310 SM_RESPONDER_PH2_W4_LTK_REQUEST, 311 SM_RESPONDER_PH2_SEND_LTK_REPLY, 312 313 // Phase 4: re-establish previously distributed LTK 314 SM_RESPONDER_PH4_Y_GET_ENC, 315 SM_RESPONDER_PH4_Y_W4_ENC, 316 SM_RESPONDER_PH4_SEND_LTK_REPLY, 317 318 // INITITIATOR ROLE 319 SM_INITIATOR_CONNECTED, 320 SM_INITIATOR_PH0_HAS_LTK, 321 SM_INITIATOR_PH0_SEND_START_ENCRYPTION, 322 SM_INITIATOR_PH0_W4_CONNECTION_ENCRYPTED, 323 SM_INITIATOR_PH1_W2_SEND_PAIRING_REQUEST, 324 SM_INITIATOR_PH1_SEND_PAIRING_REQUEST, 325 SM_INITIATOR_PH1_W4_PAIRING_RESPONSE, 326 SM_INITIATOR_PH2_W4_PAIRING_CONFIRM, 327 SM_INITIATOR_PH2_W4_PAIRING_RANDOM, 328 SM_INITIATOR_PH3_SEND_START_ENCRYPTION, 329 330 // LE Secure Connections 331 SM_SC_RECEIVED_LTK_REQUEST, 332 SM_SC_SEND_PUBLIC_KEY_COMMAND, 333 SM_SC_W4_PUBLIC_KEY_COMMAND, 334 SM_SC_W2_GET_RANDOM_A, 335 SM_SC_W4_GET_RANDOM_A, 336 SM_SC_W2_GET_RANDOM_B, 337 SM_SC_W4_GET_RANDOM_B, 338 SM_SC_W2_CMAC_FOR_CONFIRMATION, 339 SM_SC_W4_CMAC_FOR_CONFIRMATION, 340 SM_SC_SEND_CONFIRMATION, 341 SM_SC_W2_CMAC_FOR_CHECK_CONFIRMATION, 342 SM_SC_W4_CMAC_FOR_CHECK_CONFIRMATION, 343 SM_SC_W4_CONFIRMATION, 344 SM_SC_SEND_PAIRING_RANDOM, 345 SM_SC_W4_PAIRING_RANDOM, 346 SM_SC_W2_CALCULATE_G2, 347 SM_SC_W4_CALCULATE_G2, 348 SM_SC_W4_CALCULATE_DHKEY, 349 SM_SC_W2_CALCULATE_F5_SALT, 350 SM_SC_W4_CALCULATE_F5_SALT, 351 SM_SC_W2_CALCULATE_F5_MACKEY, 352 SM_SC_W4_CALCULATE_F5_MACKEY, 353 SM_SC_W2_CALCULATE_F5_LTK, 354 SM_SC_W4_CALCULATE_F5_LTK, 355 SM_SC_W2_CALCULATE_F6_FOR_DHKEY_CHECK, 356 SM_SC_W4_CALCULATE_F6_FOR_DHKEY_CHECK, 357 SM_SC_W2_CALCULATE_F6_TO_VERIFY_DHKEY_CHECK, 358 SM_SC_W4_CALCULATE_F6_TO_VERIFY_DHKEY_CHECK, 359 SM_SC_W4_USER_RESPONSE, 360 SM_SC_SEND_DHKEY_CHECK_COMMAND, 361 SM_SC_W4_DHKEY_CHECK_COMMAND, 362 SM_SC_W4_LTK_REQUEST_SC, 363 SM_SC_W2_CALCULATE_H6_ILK, 364 SM_SC_W4_CALCULATE_H6_ILK, 365 SM_SC_W2_CALCULATE_H6_BR_EDR_LINK_KEY, 366 SM_SC_W4_CALCULATE_H6_BR_EDR_LINK_KEY, 367 } security_manager_state_t; 368 369 typedef enum { 370 IRK_LOOKUP_IDLE, 371 IRK_LOOKUP_W4_READY, 372 IRK_LOOKUP_STARTED, 373 IRK_LOOKUP_SUCCEEDED, 374 IRK_LOOKUP_FAILED 375 } irk_lookup_state_t; 376 377 typedef uint8_t sm_pairing_packet_t[7]; 378 379 // connection info available as long as connection exists 380 typedef struct sm_connection { 381 hci_con_handle_t sm_handle; 382 uint8_t sm_role; // 0 - IamMaster, 1 = IamSlave 383 uint8_t sm_security_request_received; 384 uint8_t sm_pairing_requested; 385 uint8_t sm_peer_addr_type; 386 bd_addr_t sm_peer_address; 387 security_manager_state_t sm_engine_state; 388 irk_lookup_state_t sm_irk_lookup_state; 389 uint8_t sm_connection_encrypted; 390 uint8_t sm_connection_authenticated; // [0..1] 391 uint8_t sm_actual_encryption_key_size; 392 sm_pairing_packet_t sm_m_preq; // only used during c1 393 authorization_state_t sm_connection_authorization_state; 394 uint16_t sm_local_ediv; 395 uint8_t sm_local_rand[8]; 396 int sm_le_db_index; 397 } sm_connection_t; 398 399 // 400 // ATT Server 401 // 402 403 // max ATT request matches L2CAP PDU -- allow to use smaller buffer 404 #ifndef ATT_REQUEST_BUFFER_SIZE 405 #define ATT_REQUEST_BUFFER_SIZE HCI_ACL_PAYLOAD_SIZE 406 #endif 407 408 typedef enum { 409 ATT_SERVER_IDLE, 410 ATT_SERVER_REQUEST_RECEIVED, 411 ATT_SERVER_W4_SIGNED_WRITE_VALIDATION, 412 ATT_SERVER_REQUEST_RECEIVED_AND_VALIDATED, 413 ATT_SERVER_RESPONSE_PENDING, 414 } att_server_state_t; 415 416 typedef struct { 417 att_server_state_t state; 418 419 uint8_t peer_addr_type; 420 bd_addr_t peer_address; 421 422 int ir_le_device_db_index; 423 uint8_t ir_lookup_active; 424 uint8_t pairing_active; 425 426 int value_indication_handle; 427 btstack_timer_source_t value_indication_timer; 428 429 att_connection_t connection; 430 431 btstack_linked_list_t notification_requests; 432 btstack_linked_list_t indication_requests; 433 434 uint16_t request_size; 435 uint8_t request_buffer[ATT_REQUEST_BUFFER_SIZE]; 436 437 } att_server_t; 438 439 #endif 440 441 #ifdef ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE 442 typedef enum { 443 L2CAP_INFORMATION_STATE_IDLE = 0, 444 L2CAP_INFORMATION_STATE_W2_SEND_EXTENDED_FEATURE_REQUEST, 445 L2CAP_INFORMATION_STATE_W4_EXTENDED_FEATURE_RESPONSE, 446 L2CAP_INFORMATION_STATE_DONE 447 } l2cap_information_state_t; 448 449 typedef struct { 450 l2cap_information_state_t information_state; 451 uint16_t extended_feature_mask; 452 } l2cap_state_t; 453 #endif 454 455 // 456 typedef struct { 457 // linked list - assert: first field 458 btstack_linked_item_t item; 459 460 // remote side 461 bd_addr_t address; 462 463 // module handle 464 hci_con_handle_t con_handle; 465 466 // le public, le random, classic 467 bd_addr_type_t address_type; 468 469 // role: 0 - master, 1 - slave 470 uint8_t role; 471 472 // connection state 473 CONNECTION_STATE state; 474 475 // bonding 476 uint16_t bonding_flags; 477 uint8_t bonding_status; 478 479 // requested security level 480 gap_security_level_t requested_security_level; 481 482 // 483 link_key_type_t link_key_type; 484 485 // remote supported features 486 uint8_t remote_supported_feature_eSCO; 487 488 #ifdef ENABLE_CLASSIC 489 // connection mode, default ACL_CONNECTION_MODE_ACTIVE 490 uint8_t connection_mode; 491 492 // enter/exit sniff mode requests 493 uint16_t sniff_min_interval; // 0: idle, 0xffff exit sniff, else enter sniff 494 uint16_t sniff_max_interval; 495 uint16_t sniff_attempt; 496 uint16_t sniff_timeout; 497 498 // nubmer SCO bytes sent to controller (only used without explicit SCO Flow Control) 499 uint16_t num_sco_bytes_sent; 500 #endif 501 502 // errands 503 uint32_t authentication_flags; 504 505 btstack_timer_source_t timeout; 506 507 // timeout in system ticks (HAVE_EMBEDDED_TICK) or milliseconds (HAVE_EMBEDDED_TIME_MS) 508 uint32_t timestamp; 509 510 // ACL packet recombination - PRE_BUFFER + ACL Header + ACL payload 511 uint8_t acl_recombination_buffer[HCI_INCOMING_PRE_BUFFER_SIZE + 4 + HCI_ACL_BUFFER_SIZE]; 512 uint16_t acl_recombination_pos; 513 uint16_t acl_recombination_length; 514 515 516 // number packets sent to controller 517 uint8_t num_packets_sent; 518 519 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 520 uint8_t num_packets_completed; 521 #endif 522 523 // LE Connection parameter update 524 le_con_parameter_update_state_t le_con_parameter_update_state; 525 uint8_t le_con_param_update_identifier; 526 uint16_t le_conn_interval_min; 527 uint16_t le_conn_interval_max; 528 uint16_t le_conn_latency; 529 uint16_t le_supervision_timeout; 530 531 #ifdef ENABLE_BLE 532 uint16_t le_connection_interval; 533 534 // LE PHY Update via set phy command 535 uint8_t le_phy_update_all_phys; // 0xff for idle 536 uint8_t le_phy_update_tx_phys; 537 uint8_t le_phy_update_rx_phys; 538 int8_t le_phy_update_phy_options; 539 540 // LE Security Manager 541 sm_connection_t sm_connection; 542 543 // ATT Server 544 att_server_t att_server; 545 #endif 546 547 #ifdef ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE 548 l2cap_state_t l2cap_state; 549 #endif 550 551 } hci_connection_t; 552 553 554 /** 555 * HCI Inititizlization State Machine 556 */ 557 typedef enum hci_init_state{ 558 HCI_INIT_SEND_RESET = 0, 559 HCI_INIT_W4_SEND_RESET, 560 HCI_INIT_SEND_READ_LOCAL_VERSION_INFORMATION, 561 HCI_INIT_W4_SEND_READ_LOCAL_VERSION_INFORMATION, 562 HCI_INIT_SEND_READ_LOCAL_NAME, 563 HCI_INIT_W4_SEND_READ_LOCAL_NAME, 564 565 HCI_INIT_SEND_BAUD_CHANGE, 566 HCI_INIT_W4_SEND_BAUD_CHANGE, 567 HCI_INIT_CUSTOM_INIT, 568 HCI_INIT_W4_CUSTOM_INIT, 569 HCI_INIT_SEND_RESET_CSR_WARM_BOOT, 570 HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT, 571 HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT_LINK_RESET, 572 HCI_INIT_W4_CUSTOM_INIT_BCM_DELAY, 573 574 HCI_INIT_READ_LOCAL_SUPPORTED_COMMANDS, 575 HCI_INIT_W4_READ_LOCAL_SUPPORTED_COMMANDS, 576 577 HCI_INIT_SEND_BAUD_CHANGE_BCM, 578 HCI_INIT_W4_SEND_BAUD_CHANGE_BCM, 579 580 HCI_INIT_SET_BD_ADDR, 581 HCI_INIT_W4_SET_BD_ADDR, 582 583 HCI_INIT_SEND_RESET_ST_WARM_BOOT, 584 HCI_INIT_W4_SEND_RESET_ST_WARM_BOOT, 585 586 HCI_INIT_READ_BD_ADDR, 587 HCI_INIT_W4_READ_BD_ADDR, 588 589 HCI_INIT_READ_BUFFER_SIZE, 590 HCI_INIT_W4_READ_BUFFER_SIZE, 591 HCI_INIT_READ_LOCAL_SUPPORTED_FEATURES, 592 HCI_INIT_W4_READ_LOCAL_SUPPORTED_FEATURES, 593 594 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 595 HCI_INIT_HOST_BUFFER_SIZE, 596 HCI_INIT_W4_HOST_BUFFER_SIZE, 597 HCI_INIT_SET_CONTROLLER_TO_HOST_FLOW_CONTROL, 598 HCI_INIT_W4_SET_CONTROLLER_TO_HOST_FLOW_CONTROL, 599 #endif 600 601 HCI_INIT_SET_EVENT_MASK, 602 HCI_INIT_W4_SET_EVENT_MASK, 603 604 HCI_INIT_WRITE_SIMPLE_PAIRING_MODE, 605 HCI_INIT_W4_WRITE_SIMPLE_PAIRING_MODE, 606 HCI_INIT_WRITE_PAGE_TIMEOUT, 607 HCI_INIT_W4_WRITE_PAGE_TIMEOUT, 608 HCI_INIT_WRITE_DEFAULT_LINK_POLICY_SETTING, 609 HCI_INIT_W4_WRITE_DEFAULT_LINK_POLICY_SETTING, 610 HCI_INIT_WRITE_CLASS_OF_DEVICE, 611 HCI_INIT_W4_WRITE_CLASS_OF_DEVICE, 612 HCI_INIT_WRITE_LOCAL_NAME, 613 HCI_INIT_W4_WRITE_LOCAL_NAME, 614 HCI_INIT_WRITE_EIR_DATA, 615 HCI_INIT_W4_WRITE_EIR_DATA, 616 HCI_INIT_WRITE_INQUIRY_MODE, 617 HCI_INIT_W4_WRITE_INQUIRY_MODE, 618 HCI_INIT_WRITE_SCAN_ENABLE, 619 HCI_INIT_W4_WRITE_SCAN_ENABLE, 620 621 // SCO over HCI 622 HCI_INIT_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE, 623 HCI_INIT_W4_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE, 624 HCI_INIT_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING, 625 HCI_INIT_W4_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING, 626 627 // SCO over HCI Broadcom 628 HCI_INIT_BCM_WRITE_SCO_PCM_INT, 629 HCI_INIT_W4_BCM_WRITE_SCO_PCM_INT, 630 631 #ifdef ENABLE_BLE 632 HCI_INIT_LE_READ_BUFFER_SIZE, 633 HCI_INIT_W4_LE_READ_BUFFER_SIZE, 634 HCI_INIT_WRITE_LE_HOST_SUPPORTED, 635 HCI_INIT_W4_WRITE_LE_HOST_SUPPORTED, 636 HCI_INIT_LE_SET_EVENT_MASK, 637 HCI_INIT_W4_LE_SET_EVENT_MASK, 638 #endif 639 640 #ifdef ENABLE_LE_DATA_LENGTH_EXTENSION 641 HCI_INIT_LE_READ_MAX_DATA_LENGTH, 642 HCI_INIT_W4_LE_READ_MAX_DATA_LENGTH, 643 HCI_INIT_LE_WRITE_SUGGESTED_DATA_LENGTH, 644 HCI_INIT_W4_LE_WRITE_SUGGESTED_DATA_LENGTH, 645 #endif 646 647 #ifdef ENABLE_LE_CENTRAL 648 HCI_INIT_READ_WHITE_LIST_SIZE, 649 HCI_INIT_W4_READ_WHITE_LIST_SIZE, 650 651 HCI_INIT_LE_SET_SCAN_PARAMETERS, 652 HCI_INIT_W4_LE_SET_SCAN_PARAMETERS, 653 #endif 654 655 HCI_INIT_DONE, 656 657 HCI_FALLING_ASLEEP_DISCONNECT, 658 HCI_FALLING_ASLEEP_W4_WRITE_SCAN_ENABLE, 659 HCI_FALLING_ASLEEP_COMPLETE, 660 661 HCI_INIT_AFTER_SLEEP, 662 663 HCI_HALTING_DISCONNECT_ALL_NO_TIMER, 664 HCI_HALTING_DISCONNECT_ALL_TIMER, 665 HCI_HALTING_W4_TIMER, 666 HCI_HALTING_CLOSE, 667 668 } hci_substate_t; 669 670 enum { 671 LE_ADVERTISEMENT_TASKS_DISABLE = 1 << 0, 672 LE_ADVERTISEMENT_TASKS_SET_ADV_DATA = 1 << 1, 673 LE_ADVERTISEMENT_TASKS_SET_SCAN_DATA = 1 << 2, 674 LE_ADVERTISEMENT_TASKS_SET_PARAMS = 1 << 3, 675 LE_ADVERTISEMENT_TASKS_ENABLE = 1 << 4, 676 }; 677 678 enum { 679 LE_WHITELIST_ON_CONTROLLER = 1 << 0, 680 LE_WHITELIST_ADD_TO_CONTROLLER = 1 << 1, 681 LE_WHITELIST_REMOVE_FROM_CONTROLLER = 1 << 2, 682 }; 683 684 typedef struct { 685 btstack_linked_item_t item; 686 bd_addr_t address; 687 bd_addr_type_t address_type; 688 uint8_t state; 689 } whitelist_entry_t; 690 691 /** 692 * main data structure 693 */ 694 typedef struct { 695 // transport component with configuration 696 const hci_transport_t * hci_transport; 697 const void * config; 698 699 // chipset driver 700 const btstack_chipset_t * chipset; 701 702 // hardware power controller 703 const btstack_control_t * control; 704 705 /* link key db */ 706 const btstack_link_key_db_t * link_key_db; 707 708 // list of existing baseband connections 709 btstack_linked_list_t connections; 710 711 /* callback to L2CAP layer */ 712 btstack_packet_handler_t acl_packet_handler; 713 714 /* callback for SCO data */ 715 btstack_packet_handler_t sco_packet_handler; 716 717 /* callbacks for events */ 718 btstack_linked_list_t event_handlers; 719 720 // hardware error callback 721 void (*hardware_error_callback)(uint8_t error); 722 723 // basic configuration 724 const char * local_name; 725 const uint8_t * eir_data; 726 uint32_t class_of_device; 727 bd_addr_t local_bd_addr; 728 uint8_t default_link_policy_settings; 729 uint8_t ssp_enable; 730 uint8_t ssp_io_capability; 731 uint8_t ssp_authentication_requirement; 732 uint8_t ssp_auto_accept; 733 inquiry_mode_t inquiry_mode; 734 735 // single buffer for HCI packet assembly + additional prebuffer for H4 drivers 736 uint8_t * hci_packet_buffer; 737 uint8_t hci_packet_buffer_data[HCI_OUTGOING_PRE_BUFFER_SIZE + HCI_OUTGOING_PACKET_BUFFER_SIZE]; 738 uint8_t hci_packet_buffer_reserved; 739 uint16_t acl_fragmentation_pos; 740 uint16_t acl_fragmentation_total_size; 741 uint8_t acl_fragmentation_tx_active; 742 743 /* host to controller flow control */ 744 uint8_t num_cmd_packets; 745 uint8_t acl_packets_total_num; 746 uint16_t acl_data_packet_length; 747 uint8_t sco_packets_total_num; 748 uint8_t sco_data_packet_length; 749 uint8_t synchronous_flow_control_enabled; 750 uint8_t le_acl_packets_total_num; 751 uint16_t le_data_packets_length; 752 uint8_t sco_waiting_for_can_send_now; 753 754 /* local supported features */ 755 uint8_t local_supported_features[8]; 756 757 /* local supported commands summary - complete info is 64 bytes */ 758 /* 0 - Read Buffer Size (Octet 14/bit 7) */ 759 /* 1 - Write Le Host Supported (Octet 24/bit 6) */ 760 /* 2 - Write Synchronous Flow Control Enable (Octet 10/bit 4) */ 761 /* 3 - Write Default Erroneous Data Reporting (Octet 18/bit 3) */ 762 /* 4 - LE Write Suggested Default Data Length (Octet 34/bit 0) */ 763 /* 5 - LE Read Maximum Data Length (Octet 35/bit 3) */ 764 /* 6 - LE Set Default PHY (Octet 35/bit 5) */ 765 uint8_t local_supported_commands[1]; 766 767 /* bluetooth device information from hci read local version information */ 768 // uint16_t hci_version; 769 // uint16_t hci_revision; 770 // uint16_t lmp_version; 771 uint16_t manufacturer; 772 // uint16_t lmp_subversion; 773 774 // usable packet types given acl_data_packet_length and HCI_ACL_BUFFER_SIZE 775 uint16_t packet_types; 776 777 778 /* hci state machine */ 779 HCI_STATE state; 780 hci_substate_t substate; 781 btstack_timer_source_t timeout; 782 783 uint16_t last_cmd_opcode; 784 785 uint8_t cmds_ready; 786 787 /* buffer for scan enable cmd - 0xff no change */ 788 uint8_t new_scan_enable_value; 789 790 uint8_t discoverable; 791 uint8_t connectable; 792 uint8_t bondable; 793 794 uint8_t inquiry_state; // see hci.c for state defines 795 796 bd_addr_t remote_name_addr; 797 uint16_t remote_name_clock_offset; 798 uint8_t remote_name_page_scan_repetition_mode; 799 uint8_t remote_name_state; // see hci.c for state defines 800 801 bd_addr_t gap_pairing_addr; 802 uint8_t gap_pairing_state; // see hci.c for state defines 803 union { 804 const char * gap_pairing_pin; 805 uint32_t gap_pairing_passkey; 806 } gap_pairing_input; 807 808 uint16_t sco_voice_setting; 809 uint16_t sco_voice_setting_active; 810 811 uint8_t loopback_mode; 812 813 // buffer for single connection decline 814 uint8_t decline_reason; 815 bd_addr_t decline_addr; 816 817 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 818 uint8_t host_completed_packets; 819 #endif 820 821 #ifdef ENABLE_BLE 822 uint8_t le_own_addr_type; 823 bd_addr_t le_random_address; 824 uint8_t le_random_address_set; 825 #endif 826 827 #ifdef ENABLE_LE_CENTRAL 828 uint8_t le_scanning_enabled; 829 uint8_t le_scanning_active; 830 831 le_connecting_state_t le_connecting_state; 832 833 // buffer for le scan type command - 0xff not set 834 uint8_t le_scan_type; 835 uint16_t le_scan_interval; 836 uint16_t le_scan_window; 837 838 // LE Whitelist Management 839 uint8_t le_whitelist_capacity; 840 btstack_linked_list_t le_whitelist; 841 842 // Connection parameters 843 uint16_t le_connection_interval_min; 844 uint16_t le_connection_interval_max; 845 uint16_t le_connection_latency; 846 uint16_t le_supervision_timeout; 847 uint16_t le_minimum_ce_length; 848 uint16_t le_maximum_ce_length; 849 uint16_t le_connection_scan_interval; 850 uint16_t le_connection_scan_window; 851 #endif 852 853 le_connection_parameter_range_t le_connection_parameter_range; 854 855 #ifdef ENABLE_LE_PERIPHERAL 856 uint8_t * le_advertisements_data; 857 uint8_t le_advertisements_data_len; 858 859 uint8_t * le_scan_response_data; 860 uint8_t le_scan_response_data_len; 861 862 uint8_t le_advertisements_active; 863 uint8_t le_advertisements_enabled; 864 uint8_t le_advertisements_todo; 865 866 uint16_t le_advertisements_interval_min; 867 uint16_t le_advertisements_interval_max; 868 uint8_t le_advertisements_type; 869 uint8_t le_advertisements_direct_address_type; 870 uint8_t le_advertisements_channel_map; 871 uint8_t le_advertisements_filter_policy; 872 bd_addr_t le_advertisements_direct_address; 873 874 uint8_t le_max_number_peripheral_connections; 875 #endif 876 877 #ifdef ENABLE_LE_DATA_LENGTH_EXTENSION 878 // LE Data Length 879 uint16_t le_supported_max_tx_octets; 880 uint16_t le_supported_max_tx_time; 881 #endif 882 883 // custom BD ADDR 884 bd_addr_t custom_bd_addr; 885 uint8_t custom_bd_addr_set; 886 887 #ifdef ENABLE_CLASSIC 888 uint8_t master_slave_policy; 889 #endif 890 891 // address and address_type of active create connection command (ACL, SCO, LE) 892 bd_addr_t outgoing_addr; 893 bd_addr_type_t outgoing_addr_type; 894 895 } hci_stack_t; 896 897 898 /* API_START */ 899 900 901 // HCI init and configuration 902 903 904 /** 905 * @brief Set up HCI. Needs to be called before any other function. 906 */ 907 void hci_init(const hci_transport_t *transport, const void *config); 908 909 /** 910 * @brief Configure Bluetooth chipset driver. Has to be called before power on, or right after receiving the local version information. 911 */ 912 void hci_set_chipset(const btstack_chipset_t *chipset_driver); 913 914 /** 915 * @brief Configure Bluetooth hardware control. Has to be called before power on. 916 */ 917 void hci_set_control(const btstack_control_t *hardware_control); 918 919 /** 920 * @brief Configure Bluetooth hardware control. Has to be called before power on. 921 */ 922 void hci_set_link_key_db(btstack_link_key_db_t const * link_key_db); 923 924 /** 925 * @brief Set callback for Bluetooth Hardware Error 926 */ 927 void hci_set_hardware_error_callback(void (*fn)(uint8_t error)); 928 929 /** 930 * @brief Set Public BD ADDR - passed on to Bluetooth chipset during init if supported in bt_control_h 931 */ 932 void hci_set_bd_addr(bd_addr_t addr); 933 934 /** 935 * @brief Configure Voice Setting for use with SCO data in HSP/HFP 936 */ 937 void hci_set_sco_voice_setting(uint16_t voice_setting); 938 939 /** 940 * @brief Get SCO Voice Setting 941 * @return current voice setting 942 */ 943 uint16_t hci_get_sco_voice_setting(void); 944 945 /** 946 * @brief Set inquiry mode: standard, with RSSI, with RSSI + Extended Inquiry Results. Has to be called before power on. 947 * @param inquriy_mode see bluetooth_defines.h 948 */ 949 void hci_set_inquiry_mode(inquiry_mode_t mode); 950 951 /** 952 * @brief Requests the change of BTstack power mode. 953 */ 954 int hci_power_control(HCI_POWER_MODE mode); 955 956 /** 957 * @brief Shutdown HCI 958 */ 959 void hci_close(void); 960 961 962 // Callback registration 963 964 965 /** 966 * @brief Add event packet handler. 967 */ 968 void hci_add_event_handler(btstack_packet_callback_registration_t * callback_handler); 969 970 /** 971 * @brief Registers a packet handler for ACL data. Used by L2CAP 972 */ 973 void hci_register_acl_packet_handler(btstack_packet_handler_t handler); 974 975 /** 976 * @brief Registers a packet handler for SCO data. Used for HSP and HFP profiles. 977 */ 978 void hci_register_sco_packet_handler(btstack_packet_handler_t handler); 979 980 981 // Sending HCI Commands 982 983 /** 984 * @brief Check if CMD packet can be sent to controller 985 */ 986 int hci_can_send_command_packet_now(void); 987 988 /** 989 * @brief Creates and sends HCI command packets based on a template and a list of parameters. Will return error if outgoing data buffer is occupied. 990 */ 991 int hci_send_cmd(const hci_cmd_t *cmd, ...); 992 993 994 // Sending SCO Packets 995 996 /** @brief Get SCO packet length for current SCO Voice setting 997 * @note Using SCO packets of the exact length is required for USB transfer 998 * @return Length of SCO packets in bytes (not audio frames) incl. 3 byte header 999 */ 1000 int hci_get_sco_packet_length(void); 1001 1002 /** 1003 * @brief Request emission of HCI_EVENT_SCO_CAN_SEND_NOW as soon as possible 1004 * @note HCI_EVENT_SCO_CAN_SEND_NOW might be emitted during call to this function 1005 * so packet handler should be ready to handle it 1006 */ 1007 void hci_request_sco_can_send_now_event(void); 1008 1009 /** 1010 * @brief Check HCI packet buffer and if SCO packet can be sent to controller 1011 */ 1012 int hci_can_send_sco_packet_now(void); 1013 1014 /** 1015 * @brief Check if SCO packet can be sent to controller 1016 */ 1017 int hci_can_send_prepared_sco_packet_now(void); 1018 1019 /** 1020 * @brief Send SCO packet prepared in HCI packet buffer 1021 */ 1022 int hci_send_sco_packet_buffer(int size); 1023 1024 1025 // Outgoing packet buffer, also used for SCO packets 1026 // see hci_can_send_prepared_sco_packet_now amn hci_send_sco_packet_buffer 1027 1028 /** 1029 * Reserves outgoing packet buffer. 1030 * @return 1 on success 1031 */ 1032 int hci_reserve_packet_buffer(void); 1033 1034 /** 1035 * Get pointer for outgoing packet buffer 1036 */ 1037 uint8_t* hci_get_outgoing_packet_buffer(void); 1038 1039 /** 1040 * Release outgoing packet buffer\ 1041 * @note only called instead of hci_send_preparared 1042 */ 1043 void hci_release_packet_buffer(void); 1044 1045 /** 1046 * @brief Sets the master/slave policy 1047 * @param policy (0: attempt to become master, 1: let connecting device decide) 1048 */ 1049 void hci_set_master_slave_policy(uint8_t policy); 1050 1051 /* API_END */ 1052 1053 1054 /** 1055 * va_list version of hci_send_cmd, call hci_send_cmd_packet 1056 */ 1057 int hci_send_cmd_va_arg(const hci_cmd_t *cmd, va_list argtr); 1058 1059 /** 1060 * Get connection iterator. Only used by l2cap.c and sm.c 1061 */ 1062 void hci_connections_get_iterator(btstack_linked_list_iterator_t *it); 1063 1064 /** 1065 * Get internal hci_connection_t for given handle. Used by L2CAP, SM, daemon 1066 */ 1067 hci_connection_t * hci_connection_for_handle(hci_con_handle_t con_handle); 1068 1069 /** 1070 * Get internal hci_connection_t for given Bluetooth addres. Called by L2CAP 1071 */ 1072 hci_connection_t * hci_connection_for_bd_addr_and_type(bd_addr_t addr, bd_addr_type_t addr_type); 1073 1074 /** 1075 * Check if outgoing packet buffer is reserved. Used for internal checks in l2cap.c 1076 */ 1077 int hci_is_packet_buffer_reserved(void); 1078 1079 /** 1080 * Check hci packet buffer is free and a classic acl packet can be sent to controller 1081 */ 1082 int hci_can_send_acl_classic_packet_now(void); 1083 1084 /** 1085 * Check hci packet buffer is free and an LE acl packet can be sent to controller 1086 */ 1087 int hci_can_send_acl_le_packet_now(void); 1088 1089 /** 1090 * Check hci packet buffer is free and an acl packet for the given handle can be sent to controller 1091 */ 1092 int hci_can_send_acl_packet_now(hci_con_handle_t con_handle); 1093 1094 /** 1095 * Check if acl packet for the given handle can be sent to controller 1096 */ 1097 int hci_can_send_prepared_acl_packet_now(hci_con_handle_t con_handle); 1098 1099 /** 1100 * Send acl packet prepared in hci packet buffer 1101 */ 1102 int hci_send_acl_packet_buffer(int size); 1103 1104 /** 1105 * Check if authentication is active. It delays automatic disconnect while no L2CAP connection 1106 * Called by l2cap. 1107 */ 1108 int hci_authentication_active_for_handle(hci_con_handle_t handle); 1109 1110 /** 1111 * Get maximal ACL Classic data packet length based on used buffer size. Called by L2CAP 1112 */ 1113 uint16_t hci_max_acl_data_packet_length(void); 1114 1115 /** 1116 * Get supported packet types. Called by L2CAP 1117 */ 1118 uint16_t hci_usable_acl_packet_types(void); 1119 1120 /** 1121 * Check if ACL packets marked as non flushable can be sent. Called by L2CAP 1122 */ 1123 int hci_non_flushable_packet_boundary_flag_supported(void); 1124 1125 /** 1126 * Check if extended SCO Link is supported 1127 */ 1128 int hci_extended_sco_link_supported(void); 1129 1130 /** 1131 * Check if SSP is supported on both sides. Called by L2CAP 1132 */ 1133 int gap_ssp_supported_on_both_sides(hci_con_handle_t handle); 1134 1135 /** 1136 * Disconn because of security block. Called by L2CAP 1137 */ 1138 void hci_disconnect_security_block(hci_con_handle_t con_handle); 1139 1140 /** 1141 * Query if remote side supports eSCO 1142 */ 1143 int hci_remote_esco_supported(hci_con_handle_t con_handle); 1144 1145 /** 1146 * Emit current HCI state. Called by daemon 1147 */ 1148 void hci_emit_state(void); 1149 1150 /** 1151 * Send complete CMD packet. Called by daemon and hci_send_cmd_va_arg 1152 * @returns 0 if command was successfully sent to HCI Transport layer 1153 */ 1154 int hci_send_cmd_packet(uint8_t *packet, int size); 1155 1156 /** 1157 * Disconnect all HCI connections. Called by daemon 1158 */ 1159 void hci_disconnect_all(void); 1160 1161 /** 1162 * Get number of free acl slots for packets of given handle. Called by daemon 1163 */ 1164 int hci_number_free_acl_slots_for_handle(hci_con_handle_t con_handle); 1165 1166 /** 1167 * @brief Set Advertisement Parameters 1168 * @param adv_int_min 1169 * @param adv_int_max 1170 * @param adv_type 1171 * @param direct_address_type 1172 * @param direct_address 1173 * @param channel_map 1174 * @param filter_policy 1175 * 1176 * @note internal use. use gap_advertisements_set_params from gap.h instead. 1177 */ 1178 void hci_le_advertisements_set_params(uint16_t adv_int_min, uint16_t adv_int_max, uint8_t adv_type, 1179 uint8_t direct_address_typ, bd_addr_t direct_address, uint8_t channel_map, uint8_t filter_policy); 1180 1181 /** 1182 * 1183 * @note internal use. use gap_random_address_set_mode from gap.h instead. 1184 */ 1185 void hci_le_set_own_address_type(uint8_t own_address_type); 1186 1187 /** 1188 * @brief Get Manufactured 1189 * @return manufacturer id 1190 */ 1191 uint16_t hci_get_manufacturer(void); 1192 1193 // Only for PTS testing 1194 1195 /** 1196 * Disable automatic L2CAP disconnect if no L2CAP connection is established 1197 */ 1198 void hci_disable_l2cap_timeout_check(void); 1199 1200 /** 1201 * Get state 1202 */ 1203 HCI_STATE hci_get_state(void); 1204 1205 /** 1206 * Defer halt. Used by btstack_crypto to allow current HCI operation to complete 1207 */ 1208 void hci_halting_defer(void); 1209 1210 #if defined __cplusplus 1211 } 1212 #endif 1213 1214 #endif // __HCI_H 1215