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 BLUEKITCHEN 24 * GMBH 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 * @title Host Controler Interface (HCI) 40 * 41 */ 42 43 #ifndef HCI_H 44 #define HCI_H 45 46 #include "btstack_config.h" 47 48 #include "btstack_chipset.h" 49 #include "btstack_control.h" 50 #include "btstack_linked_list.h" 51 #include "btstack_util.h" 52 #include "hci_cmd.h" 53 #include "gap.h" 54 #include "hci_transport.h" 55 #include "btstack_run_loop.h" 56 57 #ifdef ENABLE_CLASSIC 58 #include "classic/btstack_link_key_db.h" 59 #endif 60 61 #ifdef ENABLE_BLE 62 #include "ble/att_db.h" 63 #endif 64 65 #ifdef HAVE_SCO_TRANSPORT 66 #include "btstack_sco_transport.h" 67 #endif 68 69 #include <stdint.h> 70 #include <stdlib.h> 71 #include <stdarg.h> 72 73 #if defined __cplusplus 74 extern "C" { 75 #endif 76 77 // packet buffer sizes 78 #define HCI_CMD_HEADER_SIZE 3 79 #define HCI_ACL_HEADER_SIZE 4 80 #define HCI_SCO_HEADER_SIZE 3 81 #define HCI_EVENT_HEADER_SIZE 2 82 #define HCI_ISO_HEADER_SIZE 4 83 84 #define HCI_EVENT_PAYLOAD_SIZE 255 85 #define HCI_CMD_PAYLOAD_SIZE 255 86 87 // default for ISO streams: 48_6_2 : 2 x 155 88 #ifndef HCI_ISO_PAYLOAD_SIZE 89 #define HCI_ISO_PAYLOAD_SIZE 310 90 #endif 91 92 // Max HCI Command LE payload size: 93 // 64 from LE Generate DHKey command 94 // 32 from LE Encrypt command 95 #if defined(ENABLE_LE_SECURE_CONNECTIONS) && !defined(ENABLE_MICRO_ECC_FOR_LE_SECURE_CONNECTIONS) 96 #define HCI_CMD_PAYLOAD_SIZE_LE 64 97 #else 98 #define HCI_CMD_PAYLOAD_SIZE_LE 32 99 #endif 100 101 // HCI_ACL_PAYLOAD_SIZE is configurable and defined in config.h 102 // addition byte in even to terminate remote name request with '\0' 103 #define HCI_EVENT_BUFFER_SIZE (HCI_EVENT_HEADER_SIZE + HCI_EVENT_PAYLOAD_SIZE + 1) 104 105 #ifdef ENABLE_CLASSIC 106 #define HCI_CMD_BUFFER_SIZE (HCI_CMD_HEADER_SIZE + HCI_CMD_PAYLOAD_SIZE) 107 #else 108 #define HCI_CMD_BUFFER_SIZE (HCI_CMD_HEADER_SIZE + HCI_CMD_PAYLOAD_SIZE_LE) 109 #endif 110 111 #define HCI_ACL_BUFFER_SIZE (HCI_ACL_HEADER_SIZE + HCI_ACL_PAYLOAD_SIZE) 112 113 // size of hci incoming buffer, big enough for event or acl packet without H4 packet type 114 #ifdef HCI_INCOMING_PACKET_BUFFER_SIZE 115 #if HCI_INCOMING_PACKET_BUFFER_SIZE < HCI_ACL_BUFFER_SIZE 116 #error HCI_INCOMING_PACKET_BUFFER_SIZE must be equal or larger than HCI_ACL_BUFFER_SIZE 117 #endif 118 #if HCI_INCOMING_PACKET_BUFFER_SIZE < HCI_EVENT_BUFFER_SIZE 119 #error HCI_INCOMING_PACKET_BUFFER_SIZE must be equal or larger than HCI_EVENT_BUFFER_SIZE 120 #endif 121 #else 122 #if HCI_ACL_BUFFER_SIZE > HCI_EVENT_BUFFER_SIZE 123 #define HCI_INCOMING_PACKET_BUFFER_SIZE HCI_ACL_BUFFER_SIZE 124 #else 125 #define HCI_INCOMING_PACKET_BUFFER_SIZE HCI_EVENT_BUFFER_SIZE 126 #endif 127 #endif 128 129 // size of hci outgoing buffer, big enough for command or acl packet without H4 packet type 130 #ifdef HCI_OUTGOING_PACKET_BUFFER_SIZE 131 #if HCI_OUTGOING_PACKET_BUFFER_SIZE < HCI_ACL_BUFFER_SIZE 132 #error HCI_OUTGOING_PACKET_BUFFER_SIZE must be equal or larger than HCI_ACL_BUFFER_SIZE 133 #endif 134 #if HCI_OUTGOING_PACKET_BUFFER_SIZE < HCI_CMD_BUFFER_SIZE 135 #error HCI_OUTGOING_PACKET_BUFFER_SIZE must be equal or larger than HCI_CMD_BUFFER_SIZE 136 #endif 137 #else 138 #if HCI_ACL_BUFFER_SIZE > HCI_CMD_BUFFER_SIZE 139 #define HCI_OUTGOING_PACKET_BUFFER_SIZE HCI_ACL_BUFFER_SIZE 140 #else 141 #define HCI_OUTGOING_PACKET_BUFFER_SIZE HCI_CMD_BUFFER_SIZE 142 #endif 143 #endif 144 145 // additional pre-buffer space for packets to Bluetooth module 146 // - H4 requires 1 byte for the packet type 147 // - h5 requires 4 bytes for H5 header 148 #ifndef HCI_OUTGOING_PRE_BUFFER_SIZE 149 #ifdef HAVE_HOST_CONTROLLER_API 150 #define HCI_OUTGOING_PRE_BUFFER_SIZE 0 151 #else 152 #ifdef ENABLE_H5 153 #define HCI_OUTGOING_PRE_BUFFER_SIZE 4 154 #else 155 #define HCI_OUTGOING_PRE_BUFFER_SIZE 1 156 #endif 157 #endif 158 #endif 159 160 // BNEP may uncompress the IP Header by 16 bytes, GATT Client requires two additional bytes for long characteristic reads 161 #ifndef HCI_INCOMING_PRE_BUFFER_SIZE 162 #ifdef ENABLE_CLASSIC 163 #define HCI_INCOMING_PRE_BUFFER_SIZE (16 - HCI_ACL_HEADER_SIZE - 4) 164 #else 165 #define HCI_INCOMING_PRE_BUFFER_SIZE 2 166 #endif 167 #endif 168 169 // 170 #define IS_COMMAND(packet, command) ( little_endian_read_16(packet,0) == command.opcode ) 171 172 // check if command complete event for given command 173 #define HCI_EVENT_IS_COMMAND_COMPLETE(event,cmd) ( (event[0] == HCI_EVENT_COMMAND_COMPLETE) && (little_endian_read_16(event,3) == cmd.opcode) ) 174 #define HCI_EVENT_IS_COMMAND_STATUS(event,cmd) ( (event[0] == HCI_EVENT_COMMAND_STATUS) && (little_endian_read_16(event,4) == cmd.opcode) ) 175 176 // Code+Len=2, Pkts+Opcode=3; total=5 177 #define OFFSET_OF_DATA_IN_COMMAND_COMPLETE 5 178 179 // ACL Packet 180 #define READ_ACL_CONNECTION_HANDLE( buffer ) ( little_endian_read_16(buffer,0) & 0x0fff) 181 #define READ_SCO_CONNECTION_HANDLE( buffer ) ( little_endian_read_16(buffer,0) & 0x0fff) 182 #define READ_ISO_CONNECTION_HANDLE( buffer ) ( little_endian_read_16(buffer,0) & 0x0fff) 183 #define READ_ACL_FLAGS( buffer ) ( buffer[1] >> 4 ) 184 #define READ_ACL_LENGTH( buffer ) (little_endian_read_16(buffer, 2)) 185 186 // Sneak peak into L2CAP Packet 187 #define READ_L2CAP_LENGTH(buffer) ( little_endian_read_16(buffer, 4)) 188 #define READ_L2CAP_CHANNEL_ID(buffer) ( little_endian_read_16(buffer, 6)) 189 190 /** 191 * LE connection parameter update state 192 */ 193 194 typedef enum { 195 CON_PARAMETER_UPDATE_NONE, 196 // L2CAP 197 CON_PARAMETER_UPDATE_SEND_REQUEST, 198 CON_PARAMETER_UPDATE_SEND_RESPONSE, 199 CON_PARAMETER_UPDATE_CHANGE_HCI_CON_PARAMETERS, 200 CON_PARAMETER_UPDATE_DENY, 201 // HCI - in respnose to HCI_SUBEVENT_LE_REMOTE_CONNECTION_PARAMETER_REQUEST 202 CON_PARAMETER_UPDATE_REPLY, 203 CON_PARAMETER_UPDATE_NEGATIVE_REPLY, 204 } le_con_parameter_update_state_t; 205 206 // Authentication flags 207 typedef enum { 208 AUTH_FLAG_NONE = 0x0000, 209 AUTH_FLAG_HANDLE_LINK_KEY_REQUEST = 0x0001, 210 AUTH_FLAG_DENY_PIN_CODE_REQUEST = 0x0002, 211 AUTH_FLAG_RECV_IO_CAPABILITIES_REQUEST = 0x0004, 212 AUTH_FLAG_RECV_IO_CAPABILITIES_RESPONSE = 0x0008, 213 AUTH_FLAG_SEND_IO_CAPABILITIES_REPLY = 0x0010, 214 AUTH_FLAG_SEND_IO_CAPABILITIES_NEGATIVE_REPLY = 0x0020, 215 AUTH_FLAG_SEND_USER_CONFIRM_REPLY = 0x0040, 216 AUTH_FLAG_SEND_USER_CONFIRM_NEGATIVE_REPLY = 0x0080, 217 AUTH_FLAG_SEND_USER_PASSKEY_REPLY = 0x0100, 218 219 // Classic OOB 220 AUTH_FLAG_SEND_REMOTE_OOB_DATA_REPLY = 0x0200, 221 222 // pairing status 223 AUTH_FLAG_LEGACY_PAIRING_ACTIVE = 0x0400, 224 AUTH_FLAG_SSP_PAIRING_ACTIVE = 0x0800, 225 AUTH_FLAG_PAIRING_ACTIVE_MASK = (AUTH_FLAG_LEGACY_PAIRING_ACTIVE | AUTH_FLAG_SSP_PAIRING_ACTIVE), 226 227 // connection status 228 AUTH_FLAG_CONNECTION_AUTHENTICATED = 0x1000, 229 AUTH_FLAG_CONNECTION_ENCRYPTED = 0x2000, 230 231 } hci_authentication_flags_t; 232 233 // GAP Connection Tasks 234 #define GAP_CONNECTION_TASK_WRITE_AUTOMATIC_FLUSH_TIMEOUT 0x0001u 235 #define GAP_CONNECTION_TASK_WRITE_SUPERVISION_TIMEOUT 0x0002u 236 #define GAP_CONNECTION_TASK_READ_RSSI 0x0004u 237 #define GAP_CONNECTION_TASK_LE_READ_REMOTE_FEATURES 0x0008u 238 239 /** 240 * Connection State 241 */ 242 typedef enum { 243 SEND_CREATE_CONNECTION = 0, 244 SENT_CREATE_CONNECTION, 245 RECEIVED_CONNECTION_REQUEST, 246 ACCEPTED_CONNECTION_REQUEST, 247 OPEN, 248 SEND_DISCONNECT, 249 SENT_DISCONNECT, 250 RECEIVED_DISCONNECTION_COMPLETE 251 } CONNECTION_STATE; 252 253 // bonding flags 254 enum { 255 // remote features 256 BONDING_REMOTE_FEATURES_QUERY_ACTIVE = 0x0001, 257 BONDING_REQUEST_REMOTE_FEATURES_PAGE_0 = 0x0002, 258 BONDING_REQUEST_REMOTE_FEATURES_PAGE_1 = 0x0004, 259 BONDING_REQUEST_REMOTE_FEATURES_PAGE_2 = 0x0008, 260 BONDING_RECEIVED_REMOTE_FEATURES = 0x0010, 261 BONDING_REMOTE_SUPPORTS_SSP_CONTROLLER = 0x0020, 262 BONDING_REMOTE_SUPPORTS_SSP_HOST = 0x0040, 263 BONDING_REMOTE_SUPPORTS_SC_CONTROLLER = 0x0080, 264 BONDING_REMOTE_SUPPORTS_SC_HOST = 0x0100, 265 // other 266 BONDING_DISCONNECT_SECURITY_BLOCK = 0x0200, 267 BONDING_DISCONNECT_DEDICATED_DONE = 0x0400, 268 BONDING_SEND_AUTHENTICATE_REQUEST = 0x0800, 269 BONDING_SENT_AUTHENTICATE_REQUEST = 0x1000, 270 BONDING_SEND_ENCRYPTION_REQUEST = 0x2000, 271 BONDING_SEND_READ_ENCRYPTION_KEY_SIZE = 0x4000, 272 BONDING_DEDICATED = 0x8000, 273 BONDING_EMIT_COMPLETE_ON_DISCONNECT = 0x10000, 274 }; 275 276 typedef enum { 277 BLUETOOTH_OFF = 1, 278 BLUETOOTH_ON, 279 BLUETOOTH_ACTIVE 280 } BLUETOOTH_STATE; 281 282 typedef enum { 283 LE_CONNECTING_IDLE, 284 LE_CONNECTING_CANCEL, 285 LE_CONNECTING_DIRECT, 286 LE_CONNECTING_WHITELIST, 287 } le_connecting_state_t; 288 289 #ifdef ENABLE_BLE 290 291 // 292 // SM internal types and globals 293 // 294 295 typedef enum { 296 297 // general states 298 SM_GENERAL_IDLE, 299 SM_GENERAL_SEND_PAIRING_FAILED, 300 SM_GENERAL_TIMEOUT, // no other security messages are exchanged 301 SM_GENERAL_REENCRYPTION_FAILED, 302 303 // Phase 1: Pairing Feature Exchange 304 SM_PH1_W4_USER_RESPONSE, 305 306 // Phase 2: Authenticating and Encrypting 307 308 // get random number for use as TK Passkey if we show it 309 SM_PH2_GET_RANDOM_TK, 310 SM_PH2_W4_RANDOM_TK, 311 312 // get local random number for confirm c1 313 SM_PH2_C1_GET_RANDOM_A, 314 SM_PH2_C1_W4_RANDOM_A, 315 SM_PH2_C1_GET_RANDOM_B, 316 SM_PH2_C1_W4_RANDOM_B, 317 318 // calculate confirm value for local side 319 SM_PH2_C1_GET_ENC_A, 320 SM_PH2_C1_W4_ENC_A, 321 322 // calculate confirm value for remote side 323 SM_PH2_C1_GET_ENC_C, 324 SM_PH2_C1_W4_ENC_C, 325 326 SM_PH2_C1_SEND_PAIRING_CONFIRM, 327 SM_PH2_SEND_PAIRING_RANDOM, 328 329 // calc STK 330 SM_PH2_CALC_STK, 331 SM_PH2_W4_STK, 332 333 SM_PH2_W4_CONNECTION_ENCRYPTED, 334 335 // Phase 3: Transport Specific Key Distribution 336 // calculate DHK, Y, EDIV, and LTK 337 SM_PH3_Y_GET_ENC, 338 SM_PH3_Y_W4_ENC, 339 SM_PH3_LTK_GET_ENC, 340 341 // exchange keys 342 SM_PH3_DISTRIBUTE_KEYS, 343 SM_PH3_RECEIVE_KEYS, 344 345 // Phase 4: re-establish previously distributed LTK 346 SM_PH4_W4_CONNECTION_ENCRYPTED, 347 348 // RESPONDER ROLE 349 SM_RESPONDER_IDLE, 350 SM_RESPONDER_SEND_SECURITY_REQUEST, 351 SM_RESPONDER_PH0_RECEIVED_LTK_REQUEST, 352 SM_RESPONDER_PH0_RECEIVED_LTK_W4_IRK, 353 SM_RESPONDER_PH0_SEND_LTK_REQUESTED_NEGATIVE_REPLY, 354 SM_RESPONDER_PH1_W4_PAIRING_REQUEST, 355 SM_RESPONDER_PH1_PAIRING_REQUEST_RECEIVED, 356 SM_RESPONDER_PH1_PAIRING_REQUEST_RECEIVED_W4_IRK, 357 SM_RESPONDER_PH1_SEND_PAIRING_RESPONSE, 358 SM_RESPONDER_PH1_W4_PAIRING_CONFIRM, 359 SM_RESPONDER_PH2_W4_PAIRING_RANDOM, 360 SM_RESPONDER_PH2_W4_LTK_REQUEST, 361 SM_RESPONDER_PH2_SEND_LTK_REPLY, 362 SM_RESPONDER_PH4_Y_W4_ENC, 363 SM_RESPONDER_PH4_SEND_LTK_REPLY, 364 365 // INITIATOR ROLE 366 SM_INITIATOR_CONNECTED, 367 SM_INITIATOR_PH1_W2_SEND_PAIRING_REQUEST, 368 SM_INITIATOR_PH1_W4_PAIRING_RESPONSE, 369 SM_INITIATOR_PH2_W4_PAIRING_CONFIRM, 370 SM_INITIATOR_PH2_W4_PAIRING_RANDOM, 371 SM_INITIATOR_PH3_SEND_START_ENCRYPTION, 372 SM_INITIATOR_PH4_HAS_LTK, 373 374 // LE Secure Connections 375 SM_SC_RECEIVED_LTK_REQUEST, 376 SM_SC_SEND_PUBLIC_KEY_COMMAND, 377 SM_SC_W4_PUBLIC_KEY_COMMAND, 378 SM_SC_W4_LOCAL_NONCE, 379 SM_SC_W2_CMAC_FOR_CONFIRMATION, 380 SM_SC_W4_CMAC_FOR_CONFIRMATION, 381 SM_SC_SEND_CONFIRMATION, 382 SM_SC_W2_CMAC_FOR_CHECK_CONFIRMATION, 383 SM_SC_W4_CMAC_FOR_CHECK_CONFIRMATION, 384 SM_SC_W4_CONFIRMATION, 385 SM_SC_SEND_PAIRING_RANDOM, 386 SM_SC_W4_PAIRING_RANDOM, 387 SM_SC_W2_CALCULATE_G2, 388 SM_SC_W4_CALCULATE_G2, 389 SM_SC_W4_CALCULATE_DHKEY, 390 SM_SC_W2_CALCULATE_F5_SALT, 391 SM_SC_W4_CALCULATE_F5_SALT, 392 SM_SC_W2_CALCULATE_F5_MACKEY, 393 SM_SC_W4_CALCULATE_F5_MACKEY, 394 SM_SC_W2_CALCULATE_F5_LTK, 395 SM_SC_W4_CALCULATE_F5_LTK, 396 SM_SC_W2_CALCULATE_F6_FOR_DHKEY_CHECK, 397 SM_SC_W4_CALCULATE_F6_FOR_DHKEY_CHECK, 398 SM_SC_W2_CALCULATE_F6_TO_VERIFY_DHKEY_CHECK, 399 SM_SC_W4_CALCULATE_F6_TO_VERIFY_DHKEY_CHECK, 400 SM_SC_W4_USER_RESPONSE, 401 SM_SC_SEND_DHKEY_CHECK_COMMAND, 402 SM_SC_W4_DHKEY_CHECK_COMMAND, 403 SM_SC_W4_LTK_REQUEST_SC, 404 SM_SC_W2_CALCULATE_ILK_USING_H6, 405 SM_SC_W2_CALCULATE_ILK_USING_H7, 406 SM_SC_W4_CALCULATE_ILK, 407 SM_SC_W2_CALCULATE_BR_EDR_LINK_KEY, 408 SM_SC_W4_CALCULATE_BR_EDR_LINK_KEY, 409 410 // Classic 411 SM_BR_EDR_W4_ENCRYPTION_COMPLETE, 412 SM_BR_EDR_INITIATOR_W4_FIXED_CHANNEL_MASK, 413 SM_BR_EDR_INITIATOR_SEND_PAIRING_REQUEST, 414 SM_BR_EDR_INITIATOR_W4_PAIRING_RESPONSE, 415 SM_BR_EDR_RESPONDER_W4_PAIRING_REQUEST, 416 SM_BR_EDR_RESPONDER_PAIRING_REQUEST_RECEIVED, 417 SM_BR_EDR_DISTRIBUTE_KEYS, 418 SM_BR_EDR_RECEIVE_KEYS, 419 SM_BR_EDR_W2_CALCULATE_ILK_USING_H6, 420 SM_BR_EDR_W2_CALCULATE_ILK_USING_H7, 421 SM_BR_EDR_W4_CALCULATE_ILK, 422 SM_BR_EDR_W2_CALCULATE_LE_LTK, 423 SM_BR_EDR_W4_CALCULATE_LE_LTK, 424 } security_manager_state_t; 425 426 typedef enum { 427 IRK_LOOKUP_IDLE, 428 IRK_LOOKUP_W4_READY, 429 IRK_LOOKUP_STARTED, 430 IRK_LOOKUP_SUCCEEDED, 431 IRK_LOOKUP_FAILED 432 } irk_lookup_state_t; 433 434 typedef uint8_t sm_pairing_packet_t[7]; 435 436 // connection info available as long as connection exists 437 typedef struct sm_connection { 438 hci_con_handle_t sm_handle; 439 uint16_t sm_cid; 440 uint8_t sm_role; // 0 - IamMaster, 1 = IamSlave 441 uint8_t sm_security_request_received; 442 uint8_t sm_pairing_requested; 443 uint8_t sm_peer_addr_type; 444 bd_addr_t sm_peer_address; 445 uint8_t sm_own_addr_type; 446 bd_addr_t sm_own_address; 447 security_manager_state_t sm_engine_state; 448 irk_lookup_state_t sm_irk_lookup_state; 449 uint8_t sm_pairing_failed_reason; 450 uint8_t sm_connection_encrypted; 451 uint8_t sm_connection_authenticated; // [0..1] 452 uint8_t sm_connection_sc; 453 uint8_t sm_actual_encryption_key_size; 454 sm_pairing_packet_t sm_m_preq; // only used during c1 455 authorization_state_t sm_connection_authorization_state; 456 uint16_t sm_local_ediv; 457 uint8_t sm_local_rand[8]; 458 int sm_le_db_index; 459 bool sm_pairing_active; 460 bool sm_reencryption_active; 461 } sm_connection_t; 462 463 // 464 // ATT Server 465 // 466 467 // max ATT request matches L2CAP PDU -- allow to use smaller buffer 468 #ifndef ATT_REQUEST_BUFFER_SIZE 469 #define ATT_REQUEST_BUFFER_SIZE HCI_ACL_PAYLOAD_SIZE 470 #endif 471 472 typedef enum { 473 ATT_SERVER_IDLE, 474 ATT_SERVER_REQUEST_RECEIVED, 475 ATT_SERVER_W4_SIGNED_WRITE_VALIDATION, 476 ATT_SERVER_REQUEST_RECEIVED_AND_VALIDATED, 477 ATT_SERVER_RESPONSE_PENDING, 478 } att_server_state_t; 479 480 typedef struct { 481 att_server_state_t state; 482 483 uint8_t peer_addr_type; 484 bd_addr_t peer_address; 485 486 int ir_le_device_db_index; 487 uint8_t ir_lookup_active; 488 uint8_t pairing_active; 489 490 uint16_t value_indication_handle; 491 btstack_timer_source_t value_indication_timer; 492 493 btstack_linked_list_t notification_requests; 494 btstack_linked_list_t indication_requests; 495 496 #ifdef ENABLE_GATT_OVER_CLASSIC 497 uint16_t l2cap_cid; 498 #endif 499 500 uint16_t request_size; 501 uint8_t request_buffer[ATT_REQUEST_BUFFER_SIZE]; 502 503 } att_server_t; 504 505 #endif 506 507 typedef enum { 508 L2CAP_INFORMATION_STATE_IDLE = 0, 509 L2CAP_INFORMATION_STATE_W2_SEND_EXTENDED_FEATURE_REQUEST, 510 L2CAP_INFORMATION_STATE_W4_EXTENDED_FEATURE_RESPONSE, 511 L2CAP_INFORMATION_STATE_W2_SEND_FIXED_CHANNELS_REQUEST, 512 L2CAP_INFORMATION_STATE_W4_FIXED_CHANNELS_RESPONSE, 513 L2CAP_INFORMATION_STATE_DONE 514 } l2cap_information_state_t; 515 516 typedef struct { 517 l2cap_information_state_t information_state; 518 uint16_t extended_feature_mask; 519 uint16_t fixed_channels_supported; // Core V5.3 - only first octet used 520 } l2cap_state_t; 521 522 // 523 typedef struct { 524 // linked list - assert: first field 525 btstack_linked_item_t item; 526 527 // remote side 528 bd_addr_t address; 529 530 // module handle 531 hci_con_handle_t con_handle; 532 533 // le public, le random, classic 534 bd_addr_type_t address_type; 535 536 // role: 0 - master, 1 - slave 537 hci_role_t role; 538 539 // connection state 540 CONNECTION_STATE state; 541 542 // bonding 543 uint32_t bonding_flags; 544 uint8_t bonding_status; 545 546 // encryption key size (in octets) 547 uint8_t encryption_key_size; 548 549 // requested security level 550 gap_security_level_t requested_security_level; 551 552 // link key and its type for Classic connections 553 // LTK and LTK valid flag for LE connections 554 link_key_t link_key; 555 link_key_type_t link_key_type; 556 557 // remote supported features 558 /* bit 0 - eSCO */ 559 /* bit 1 - extended features */ 560 uint8_t remote_supported_features[1]; 561 562 #ifdef ENABLE_CLASSIC 563 // IO Capabilities Response 564 uint8_t io_cap_response_auth_req; 565 uint8_t io_cap_response_io; 566 #ifdef ENABLE_CLASSIC_PAIRING_OOB 567 uint8_t io_cap_response_oob_data; 568 #endif 569 570 // connection mode, default ACL_CONNECTION_MODE_ACTIVE 571 uint8_t connection_mode; 572 573 // enter/exit sniff mode requests 574 uint16_t sniff_min_interval; // 0: idle, 0xffff exit sniff, else enter sniff 575 uint16_t sniff_max_interval; 576 uint16_t sniff_attempt; 577 uint16_t sniff_timeout; 578 579 // sniff subrating 580 uint16_t sniff_subrating_max_latency; // 0xffff = not set 581 uint16_t sniff_subrating_min_remote_timeout; 582 uint16_t sniff_subrating_min_local_timeout; 583 584 // QoS 585 hci_service_type_t qos_service_type; 586 uint32_t qos_token_rate; 587 uint32_t qos_peak_bandwidth; 588 uint32_t qos_latency; 589 uint32_t qos_delay_variation; 590 591 #ifdef ENABLE_SCO_OVER_HCI 592 // track SCO rx event 593 uint32_t sco_rx_ms; 594 uint8_t sco_rx_count; 595 uint8_t sco_rx_valid; 596 #endif 597 // generate sco can send now based on received packets, using timeout below 598 uint8_t sco_tx_ready; 599 600 // request role switch 601 hci_role_t request_role; 602 603 btstack_timer_source_t timeout_sco; 604 #endif /* ENABLE_CLASSIC */ 605 606 // authentication and other errands 607 uint16_t authentication_flags; 608 609 // gap connection tasks, see GAP_CONNECTION_TASK_x 610 uint16_t gap_connection_tasks; 611 612 btstack_timer_source_t timeout; 613 614 // timeout in system ticks (HAVE_EMBEDDED_TICK) or milliseconds (HAVE_EMBEDDED_TIME_MS) 615 uint32_t timestamp; 616 617 // ACL packet recombination - PRE_BUFFER + ACL Header + ACL payload 618 uint8_t acl_recombination_buffer[HCI_INCOMING_PRE_BUFFER_SIZE + 4 + HCI_ACL_BUFFER_SIZE]; 619 uint16_t acl_recombination_pos; 620 uint16_t acl_recombination_length; 621 622 623 // number packets sent to controller 624 uint8_t num_packets_sent; 625 626 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 627 uint8_t num_packets_completed; 628 #endif 629 630 // LE Connection parameter update 631 le_con_parameter_update_state_t le_con_parameter_update_state; 632 uint8_t le_con_param_update_identifier; 633 uint16_t le_conn_interval_min; 634 uint16_t le_conn_interval_max; 635 uint16_t le_conn_latency; 636 uint16_t le_supervision_timeout; 637 638 #ifdef ENABLE_BLE 639 uint16_t le_connection_interval; 640 641 // LE PHY Update via set phy command 642 uint8_t le_phy_update_all_phys; // 0xff for idle 643 uint8_t le_phy_update_tx_phys; 644 uint8_t le_phy_update_rx_phys; 645 int8_t le_phy_update_phy_options; 646 647 // LE Security Manager 648 sm_connection_t sm_connection; 649 650 #ifdef ENABLE_LE_LIMIT_ACL_FRAGMENT_BY_MAX_OCTETS 651 uint16_t le_max_tx_octets; 652 #endif 653 654 // ATT Connection 655 att_connection_t att_connection; 656 657 // ATT Server 658 att_server_t att_server; 659 660 #ifdef ENABLE_LE_PERIODIC_ADVERTISING 661 hci_con_handle_t le_past_sync_handle; 662 uint16_t le_past_service_data; 663 #endif 664 665 #endif 666 667 l2cap_state_t l2cap_state; 668 669 #ifdef ENABLE_CLASSIC_PAIRING_OOB 670 const uint8_t * classic_oob_c_192; 671 const uint8_t * classic_oob_r_192; 672 const uint8_t * classic_oob_c_256; 673 const uint8_t * classic_oob_r_256; 674 #endif 675 676 } hci_connection_t; 677 678 #ifdef ENABLE_LE_ISOCHRONOUS_STREAMS 679 680 681 typedef enum { 682 HCI_ISO_TYPE_INVALID = 0, 683 HCI_ISO_TYPE_BIS, 684 HCI_ISO_TYPE_CIS, 685 } hci_iso_type_t; 686 687 #define HCI_ISO_GROUP_ID_SINGLE_CIS 0xfe 688 #define HCI_ISO_GROUP_ID_INVALID 0xff 689 690 typedef enum{ 691 HCI_ISO_STREAM_STATE_IDLE, 692 HCI_ISO_STREAM_W4_USER, 693 HCI_ISO_STREAM_W2_ACCEPT, 694 HCI_ISO_STREAM_W2_REJECT, 695 HCI_ISO_STREAM_STATE_REQUESTED, 696 HCI_ISO_STREAM_STATE_W4_ESTABLISHED, 697 HCI_ISO_STREAM_STATE_ESTABLISHED, 698 HCI_ISO_STREAM_STATE_W2_SETUP_ISO_INPUT, 699 HCI_ISO_STREAM_STATE_W4_ISO_SETUP_INPUT, 700 HCI_ISO_STREAM_STATE_W2_SETUP_ISO_OUTPUT, 701 HCI_ISO_STREAM_STATE_W4_ISO_SETUP_OUTPUT, 702 } hci_iso_stream_state_t; 703 704 typedef struct { 705 // linked list - assert: first field 706 btstack_linked_item_t item; 707 708 // state 709 hci_iso_stream_state_t state; 710 711 // iso type: bis or cis 712 hci_iso_type_t iso_type; 713 714 // group_id: big_handle or cig_id 715 uint8_t group_id; 716 717 // stream_id: bis_index or cis_id 718 uint8_t stream_id; 719 720 // only valid for HCI_ISO_TYPE_CIS 721 hci_con_handle_t cis_handle; 722 hci_con_handle_t acl_handle; 723 724 // connection info 725 uint16_t max_sdu_c_to_p; 726 uint16_t max_sdu_p_to_c; 727 728 // re-assembly buffer 729 uint16_t reassembly_pos; 730 uint8_t reassembly_buffer[HCI_ISO_PAYLOAD_SIZE]; 731 732 // number packets sent to controller 733 uint8_t num_packets_sent; 734 735 // packets to skip due to queuing them to late before 736 uint8_t num_packets_to_skip; 737 738 // request to send 739 bool can_send_now_requested; 740 741 // ready to send 742 bool emit_ready_to_send; 743 744 } hci_iso_stream_t; 745 #endif 746 747 /** 748 * HCI Inititizlization State Machine 749 */ 750 typedef enum hci_init_state{ 751 HCI_INIT_SEND_RESET = 0, 752 HCI_INIT_W4_SEND_RESET, 753 HCI_INIT_SEND_READ_LOCAL_VERSION_INFORMATION, 754 HCI_INIT_W4_SEND_READ_LOCAL_VERSION_INFORMATION, 755 756 #ifndef HAVE_HOST_CONTROLLER_API 757 HCI_INIT_SEND_READ_LOCAL_NAME, 758 HCI_INIT_W4_SEND_READ_LOCAL_NAME, 759 HCI_INIT_SEND_BAUD_CHANGE, 760 HCI_INIT_W4_SEND_BAUD_CHANGE, 761 HCI_INIT_CUSTOM_INIT, 762 HCI_INIT_W4_CUSTOM_INIT, 763 764 HCI_INIT_SEND_RESET_CSR_WARM_BOOT, 765 HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT, 766 HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT_LINK_RESET, 767 768 HCI_INIT_W4_CUSTOM_INIT_BCM_DELAY, 769 #endif 770 771 // Support for Pre-Init before HCI Reset 772 HCI_INIT_CUSTOM_PRE_INIT, 773 HCI_INIT_W4_CUSTOM_PRE_INIT, 774 775 HCI_INIT_READ_LOCAL_SUPPORTED_COMMANDS, 776 HCI_INIT_W4_READ_LOCAL_SUPPORTED_COMMANDS, 777 778 HCI_INIT_SEND_BAUD_CHANGE_BCM, 779 HCI_INIT_W4_SEND_BAUD_CHANGE_BCM, 780 781 HCI_INIT_SET_BD_ADDR, 782 HCI_INIT_W4_SET_BD_ADDR, 783 784 HCI_INIT_SEND_RESET_ST_WARM_BOOT, 785 HCI_INIT_W4_SEND_RESET_ST_WARM_BOOT, 786 787 HCI_INIT_READ_BD_ADDR, 788 HCI_INIT_W4_READ_BD_ADDR, 789 790 HCI_INIT_READ_BUFFER_SIZE, 791 HCI_INIT_W4_READ_BUFFER_SIZE, 792 HCI_INIT_READ_LOCAL_SUPPORTED_FEATURES, 793 HCI_INIT_W4_READ_LOCAL_SUPPORTED_FEATURES, 794 795 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 796 HCI_INIT_HOST_BUFFER_SIZE, 797 HCI_INIT_W4_HOST_BUFFER_SIZE, 798 HCI_INIT_SET_CONTROLLER_TO_HOST_FLOW_CONTROL, 799 HCI_INIT_W4_SET_CONTROLLER_TO_HOST_FLOW_CONTROL, 800 #endif 801 802 HCI_INIT_SET_EVENT_MASK, 803 HCI_INIT_W4_SET_EVENT_MASK, 804 HCI_INIT_SET_EVENT_MASK_2, 805 HCI_INIT_W4_SET_EVENT_MASK_2, 806 807 #ifdef ENABLE_CLASSIC 808 HCI_INIT_WRITE_SIMPLE_PAIRING_MODE, 809 HCI_INIT_W4_WRITE_SIMPLE_PAIRING_MODE, 810 HCI_INIT_WRITE_INQUIRY_MODE, 811 HCI_INIT_W4_WRITE_INQUIRY_MODE, 812 HCI_INIT_WRITE_SECURE_CONNECTIONS_HOST_ENABLE, 813 HCI_INIT_W4_WRITE_SECURE_CONNECTIONS_HOST_ENABLE, 814 HCI_INIT_SET_MIN_ENCRYPTION_KEY_SIZE, 815 HCI_INIT_W4_SET_MIN_ENCRYPTION_KEY_SIZE, 816 817 #ifdef ENABLE_SCO_OVER_HCI 818 // SCO over HCI 819 HCI_INIT_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE, 820 HCI_INIT_W4_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE, 821 HCI_INIT_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING, 822 HCI_INIT_W4_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING, 823 #endif 824 825 #if defined(ENABLE_SCO_OVER_HCI) || defined(ENABLE_SCO_OVER_PCM) 826 // Broadcom SCO Routing and Configuration 827 HCI_INIT_BCM_WRITE_SCO_PCM_INT, 828 HCI_INIT_W4_BCM_WRITE_SCO_PCM_INT, 829 #endif 830 #ifdef ENABLE_SCO_OVER_PCM 831 HCI_INIT_BCM_WRITE_I2SPCM_INTERFACE_PARAM, 832 HCI_INIT_W4_BCM_WRITE_I2SPCM_INTERFACE_PARAM, 833 #endif 834 #endif 835 836 #ifdef ENABLE_BLE 837 HCI_INIT_LE_READ_BUFFER_SIZE, 838 HCI_INIT_W4_LE_READ_BUFFER_SIZE, 839 HCI_INIT_WRITE_LE_HOST_SUPPORTED, 840 HCI_INIT_W4_WRITE_LE_HOST_SUPPORTED, 841 HCI_INIT_LE_SET_EVENT_MASK, 842 HCI_INIT_W4_LE_SET_EVENT_MASK, 843 #endif 844 845 #ifdef ENABLE_LE_DATA_LENGTH_EXTENSION 846 HCI_INIT_LE_READ_MAX_DATA_LENGTH, 847 HCI_INIT_W4_LE_READ_MAX_DATA_LENGTH, 848 HCI_INIT_LE_WRITE_SUGGESTED_DATA_LENGTH, 849 HCI_INIT_W4_LE_WRITE_SUGGESTED_DATA_LENGTH, 850 #endif 851 852 #ifdef ENABLE_LE_CENTRAL 853 HCI_INIT_READ_WHITE_LIST_SIZE, 854 HCI_INIT_W4_READ_WHITE_LIST_SIZE, 855 #endif 856 857 #ifdef ENABLE_LE_PERIPHERAL 858 #ifdef ENABLE_LE_EXTENDED_ADVERTISING 859 HCI_INIT_LE_READ_MAX_ADV_DATA_LEN, 860 HCI_INIT_W4_LE_READ_MAX_ADV_DATA_LEN, 861 #endif 862 #endif 863 #ifdef ENABLE_LE_ISOCHRONOUS_STREAMS 864 HCI_INIT_LE_SET_HOST_FEATURE_CONNECTED_ISO_STREAMS, 865 HCI_INIT_W4_LE_SET_HOST_FEATURE_CONNECTED_ISO_STREAMS, 866 #endif 867 868 HCI_INIT_DONE, 869 870 HCI_FALLING_ASLEEP_DISCONNECT, 871 HCI_FALLING_ASLEEP_W4_WRITE_SCAN_ENABLE, 872 HCI_FALLING_ASLEEP_COMPLETE, 873 874 HCI_INIT_AFTER_SLEEP, 875 876 HCI_HALTING_CLASSIC_STOP, 877 HCI_HALTING_LE_ADV_STOP, 878 HCI_HALTING_LE_SCAN_STOP, 879 HCI_HALTING_DISCONNECT_ALL, 880 HCI_HALTING_W4_CLOSE_TIMER, 881 HCI_HALTING_CLOSE, 882 HCI_HALTING_CLOSE_DISCARDING_CONNECTIONS, 883 884 } hci_substate_t; 885 886 #define GAP_TASK_SET_LOCAL_NAME 0x01 887 #define GAP_TASK_SET_EIR_DATA 0x02 888 #define GAP_TASK_SET_CLASS_OF_DEVICE 0x04 889 #define GAP_TASK_SET_DEFAULT_LINK_POLICY 0x08 890 #define GAP_TASK_WRITE_SCAN_ENABLE 0x10 891 #define GAP_TASK_WRITE_PAGE_SCAN_ACTIVITY 0x20 892 #define GAP_TASK_WRITE_PAGE_SCAN_TYPE 0x40 893 #define GAP_TASK_WRITE_PAGE_TIMEOUT 0x80 894 #define GAP_TASK_WRITE_INQUIRY_SCAN_ACTIVITY 0x100 895 896 enum { 897 // Tasks 898 LE_ADVERTISEMENT_TASKS_SET_ADV_DATA = 1 << 0, 899 LE_ADVERTISEMENT_TASKS_SET_SCAN_DATA = 1 << 1, 900 LE_ADVERTISEMENT_TASKS_SET_PARAMS = 1 << 2, 901 LE_ADVERTISEMENT_TASKS_SET_PERIODIC_PARAMS = 1 << 3, 902 LE_ADVERTISEMENT_TASKS_SET_PERIODIC_DATA = 1 << 4, 903 LE_ADVERTISEMENT_TASKS_REMOVE_SET = 1 << 5, 904 LE_ADVERTISEMENT_TASKS_SET_ADDRESS = 1 << 6, 905 LE_ADVERTISEMENT_TASKS_SET_ADDRESS_SET_0 = 1 << 7, 906 }; 907 908 enum { 909 // State 910 LE_ADVERTISEMENT_STATE_PARAMS_SET = 1 << 0, 911 LE_ADVERTISEMENT_STATE_ACTIVE = 1 << 1, 912 LE_ADVERTISEMENT_STATE_ENABLED = 1 << 2, 913 LE_ADVERTISEMENT_STATE_PERIODIC_ACTIVE = 1 << 3, 914 LE_ADVERTISEMENT_STATE_PERIODIC_ENABLED = 1 << 4, 915 }; 916 917 enum { 918 LE_WHITELIST_ON_CONTROLLER = 1 << 0, 919 LE_WHITELIST_ADD_TO_CONTROLLER = 1 << 1, 920 LE_WHITELIST_REMOVE_FROM_CONTROLLER = 1 << 2, 921 }; 922 923 enum { 924 LE_PERIODIC_ADVERTISER_LIST_ENTRY_ON_CONTROLLER = 1 << 0, 925 LE_PERIODIC_ADVERTISER_LIST_ENTRY_ADD_TO_CONTROLLER = 1 << 1, 926 LE_PERIODIC_ADVERTISER_LIST_ENTRY_REMOVE_FROM_CONTROLLER = 1 << 2, 927 }; 928 929 typedef struct { 930 btstack_linked_item_t item; 931 bd_addr_t address; 932 bd_addr_type_t address_type; 933 uint8_t state; 934 } whitelist_entry_t; 935 936 typedef struct { 937 btstack_linked_item_t item; 938 bd_addr_t address; 939 bd_addr_type_t address_type; 940 uint8_t sid; 941 uint8_t state; 942 } periodic_advertiser_list_entry_t; 943 944 #define MAX_NUM_RESOLVING_LIST_ENTRIES 64 945 typedef enum { 946 LE_RESOLVING_LIST_SEND_ENABLE_ADDRESS_RESOLUTION, 947 LE_RESOLVING_LIST_READ_SIZE, 948 LE_RESOLVING_LIST_SEND_CLEAR, 949 LE_RESOLVING_LIST_UPDATES_ENTRIES, 950 LE_RESOLVING_LIST_DONE 951 } le_resolving_list_state_t; 952 953 /** 954 * main data structure 955 */ 956 typedef struct { 957 // transport component with configuration 958 const hci_transport_t * hci_transport; 959 const void * config; 960 961 // chipset driver 962 const btstack_chipset_t * chipset; 963 964 // chipset driver requires pre-init 965 bool chipset_pre_init; 966 967 // hardware power controller 968 const btstack_control_t * control; 969 970 #ifdef ENABLE_CLASSIC 971 /* link key db */ 972 const btstack_link_key_db_t * link_key_db; 973 #endif 974 975 // list of existing baseband connections 976 btstack_linked_list_t connections; 977 978 /* callback to L2CAP layer */ 979 btstack_packet_handler_t acl_packet_handler; 980 981 /* callback for SCO data */ 982 btstack_packet_handler_t sco_packet_handler; 983 984 /* callbacks for events */ 985 btstack_linked_list_t event_handlers; 986 987 #ifdef ENABLE_CLASSIC 988 /* callback for reject classic connection */ 989 int (*gap_classic_accept_callback)(bd_addr_t addr, hci_link_type_t link_type); 990 #endif 991 992 // hardware error callback 993 void (*hardware_error_callback)(uint8_t error); 994 995 #ifdef ENABLE_LE_ISOCHRONOUS_STREAMS 996 /* callback for ISO data */ 997 btstack_packet_handler_t iso_packet_handler; 998 999 /* fragmentation for ISO data */ 1000 uint16_t iso_fragmentation_pos; 1001 uint16_t iso_fragmentation_total_size; 1002 bool iso_fragmentation_tx_active; 1003 1004 uint8_t iso_packets_to_queue; 1005 // group id and type of active operation 1006 hci_iso_type_t iso_active_operation_type; 1007 uint8_t iso_active_operation_group_id; 1008 1009 // list of iso streams 1010 btstack_linked_list_t iso_streams; 1011 1012 // list of BIGs and BIG Syncs 1013 btstack_linked_list_t le_audio_bigs; 1014 btstack_linked_list_t le_audio_big_syncs; 1015 1016 // list of CIGs 1017 btstack_linked_list_t le_audio_cigs; 1018 #endif 1019 1020 // basic configuration 1021 const char * local_name; 1022 const uint8_t * eir_data; 1023 uint32_t class_of_device; 1024 bd_addr_t local_bd_addr; 1025 uint16_t default_link_policy_settings; 1026 uint8_t allow_role_switch; 1027 uint8_t ssp_enable; 1028 uint8_t ssp_io_capability; 1029 uint8_t ssp_authentication_requirement; 1030 uint8_t ssp_auto_accept; 1031 bool secure_connections_enable; 1032 bool secure_connections_active; 1033 inquiry_mode_t inquiry_mode; 1034 1035 #ifdef ENABLE_CLASSIC 1036 /* GAP tasks, see GAP_TASK_* */ 1037 uint16_t gap_tasks_classic; 1038 1039 /* write page scan activity */ 1040 uint16_t new_page_scan_interval; 1041 uint16_t new_page_scan_window; 1042 1043 /* write page scan type */ 1044 uint8_t new_page_scan_type; 1045 1046 /* write page timeout */ 1047 uint16_t page_timeout; 1048 1049 // Errata-11838 mandates 7 bytes for GAP Security Level 1-3, we use 16 as default 1050 uint8_t gap_required_encyrption_key_size; 1051 1052 uint16_t link_supervision_timeout; 1053 uint16_t automatic_flush_timeout; 1054 1055 gap_security_level_t gap_security_level; 1056 gap_security_level_t gap_minimal_service_security_level; 1057 gap_security_mode_t gap_security_mode; 1058 1059 uint32_t inquiry_lap; // GAP_IAC_GENERAL_INQUIRY or GAP_IAC_LIMITED_INQUIRY 1060 uint16_t inquiry_scan_interval; 1061 uint16_t inquiry_scan_window; 1062 1063 bool gap_secure_connections_only_mode; 1064 #endif 1065 1066 // single buffer for HCI packet assembly + additional prebuffer for H4 drivers 1067 uint8_t * hci_packet_buffer; 1068 uint8_t hci_packet_buffer_data[HCI_OUTGOING_PRE_BUFFER_SIZE + HCI_OUTGOING_PACKET_BUFFER_SIZE]; 1069 bool hci_packet_buffer_reserved; 1070 uint16_t acl_fragmentation_pos; 1071 uint16_t acl_fragmentation_total_size; 1072 uint8_t acl_fragmentation_tx_active; 1073 1074 /* host to controller flow control */ 1075 uint8_t num_cmd_packets; 1076 uint8_t acl_packets_total_num; 1077 uint16_t acl_data_packet_length; 1078 uint8_t sco_packets_total_num; 1079 uint8_t sco_data_packet_length; 1080 uint8_t synchronous_flow_control_enabled; 1081 uint8_t le_acl_packets_total_num; 1082 uint16_t le_data_packets_length; 1083 uint8_t le_iso_packets_total_num; 1084 uint16_t le_iso_packets_length; 1085 uint8_t sco_waiting_for_can_send_now; 1086 bool sco_can_send_now; 1087 1088 /* local supported features */ 1089 uint8_t local_supported_features[8]; 1090 1091 /* local supported commands summary - complete info is 64 bytes */ 1092 uint32_t local_supported_commands; 1093 1094 /* bluetooth device information from hci read local version information */ 1095 // uint16_t hci_version; 1096 // uint16_t hci_revision; 1097 // uint16_t lmp_version; 1098 uint16_t manufacturer; 1099 // uint16_t lmp_subversion; 1100 1101 // usable packet types given acl_data_packet_length and HCI_ACL_BUFFER_SIZE 1102 uint16_t packet_types; 1103 1104 1105 /* hci state machine */ 1106 HCI_STATE state; 1107 hci_substate_t substate; 1108 btstack_timer_source_t timeout; 1109 btstack_chipset_result_t chipset_result; 1110 1111 uint16_t last_cmd_opcode; 1112 1113 uint8_t cmds_ready; 1114 1115 /* buffer for scan enable cmd - 0xff no change */ 1116 uint8_t new_scan_enable_value; 1117 1118 uint8_t discoverable; 1119 uint8_t connectable; 1120 uint8_t bondable; 1121 1122 uint8_t inquiry_state; // see hci.c for state defines 1123 uint16_t inquiry_max_period_length; 1124 uint16_t inquiry_min_period_length; 1125 1126 bd_addr_t remote_name_addr; 1127 uint16_t remote_name_clock_offset; 1128 uint8_t remote_name_page_scan_repetition_mode; 1129 uint8_t remote_name_state; // see hci.c for state defines 1130 1131 bd_addr_t gap_pairing_addr; 1132 uint8_t gap_pairing_state; // see hci.c for state defines 1133 uint8_t gap_pairing_pin_len; 1134 union { 1135 const uint8_t * gap_pairing_pin; 1136 uint32_t gap_pairing_passkey; 1137 } gap_pairing_input; 1138 1139 uint16_t sco_voice_setting; 1140 uint16_t sco_voice_setting_active; 1141 1142 uint8_t loopback_mode; 1143 1144 // buffer for single connection decline 1145 uint8_t decline_reason; 1146 bd_addr_t decline_addr; 1147 1148 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 1149 uint8_t host_completed_packets; 1150 #endif 1151 1152 #ifdef ENABLE_BLE 1153 uint8_t le_own_addr_type; 1154 bd_addr_t le_random_address; 1155 uint8_t le_random_address_set; 1156 1157 // LE Whitelist Management 1158 uint8_t le_whitelist_capacity; 1159 btstack_linked_list_t le_whitelist; 1160 #endif 1161 1162 #ifdef ENABLE_LE_CENTRAL 1163 bool le_scanning_enabled; 1164 bool le_scanning_active; 1165 1166 le_connecting_state_t le_connecting_state; 1167 le_connecting_state_t le_connecting_request; 1168 1169 bool le_scanning_param_update; 1170 uint8_t le_scan_filter_duplicates; 1171 uint8_t le_scan_type; 1172 uint8_t le_scan_filter_policy; 1173 uint8_t le_scan_phys; 1174 uint16_t le_scan_interval; 1175 uint16_t le_scan_window; 1176 1177 // Connection parameters 1178 uint16_t le_connection_interval_min; 1179 uint16_t le_connection_interval_max; 1180 uint16_t le_connection_latency; 1181 uint16_t le_supervision_timeout; 1182 uint16_t le_minimum_ce_length; 1183 uint16_t le_maximum_ce_length; 1184 uint16_t le_connection_scan_interval; 1185 uint16_t le_connection_scan_window; 1186 uint8_t le_connection_own_addr_type; 1187 uint8_t le_connection_phys; 1188 bd_addr_t le_connection_own_address; 1189 1190 #ifdef ENABLE_LE_EXTENDED_ADVERTISING 1191 btstack_linked_list_t le_periodic_advertiser_list; 1192 uint16_t le_periodic_terminate_sync_handle; 1193 1194 // Periodic Advertising Sync parameters 1195 uint8_t le_periodic_sync_options; 1196 uint8_t le_periodic_sync_advertising_sid; 1197 bd_addr_type_t le_periodic_sync_advertiser_address_type; 1198 bd_addr_t le_periodic_sync_advertiser_address; 1199 uint16_t le_periodic_sync_skip; 1200 uint16_t le_periodic_sync_timeout; 1201 uint8_t le_periodic_sync_cte_type; 1202 le_connecting_state_t le_periodic_sync_state; 1203 le_connecting_state_t le_periodic_sync_request; 1204 1205 // Periodic Advertising Sync Transfer (PAST) 1206 bool le_past_set_default_params; 1207 uint8_t le_past_mode; 1208 uint16_t le_past_skip; 1209 uint16_t le_past_sync_timeout; 1210 uint8_t le_past_cte_type; 1211 #endif 1212 #endif 1213 1214 le_connection_parameter_range_t le_connection_parameter_range; 1215 1216 // TODO: move LE_ADVERTISEMENT_TASKS_SET_ADDRESS flag which is used for both roles into 1217 // some generic gap_le variable 1218 uint8_t le_advertisements_todo; 1219 1220 #ifdef ENABLE_LE_PERIPHERAL 1221 uint8_t * le_advertisements_data; 1222 uint8_t le_advertisements_data_len; 1223 1224 uint8_t * le_scan_response_data; 1225 uint8_t le_scan_response_data_len; 1226 1227 uint16_t le_advertisements_interval_min; 1228 uint16_t le_advertisements_interval_max; 1229 uint8_t le_advertisements_type; 1230 uint8_t le_advertisements_direct_address_type; 1231 uint8_t le_advertisements_channel_map; 1232 uint8_t le_advertisements_filter_policy; 1233 bd_addr_t le_advertisements_direct_address; 1234 uint8_t le_advertisements_own_addr_type; 1235 bd_addr_t le_advertisements_own_address; 1236 1237 uint8_t le_advertisements_state; 1238 1239 bool le_advertisements_enabled_for_current_roles; 1240 uint8_t le_max_number_peripheral_connections; 1241 1242 #ifdef ENABLE_LE_EXTENDED_ADVERTISING 1243 btstack_linked_list_t le_advertising_sets; 1244 uint16_t le_maximum_advertising_data_length; 1245 uint8_t le_advertising_set_in_current_command; 1246 #endif 1247 #endif 1248 1249 #ifdef ENABLE_LE_DATA_LENGTH_EXTENSION 1250 // LE Data Length 1251 uint16_t le_supported_max_tx_octets; 1252 uint16_t le_supported_max_tx_time; 1253 #endif 1254 1255 // custom BD ADDR 1256 bd_addr_t custom_bd_addr; 1257 uint8_t custom_bd_addr_set; 1258 1259 #ifdef ENABLE_CLASSIC 1260 uint8_t master_slave_policy; 1261 #endif 1262 1263 // address and address_type of active create connection command (ACL, SCO, LE) 1264 bd_addr_t outgoing_addr; 1265 bd_addr_type_t outgoing_addr_type; 1266 1267 // LE Resolving List 1268 #ifdef ENABLE_LE_PRIVACY_ADDRESS_RESOLUTION 1269 le_privacy_mode_t le_privacy_mode; 1270 le_resolving_list_state_t le_resolving_list_state; 1271 uint16_t le_resolving_list_size; 1272 uint8_t le_resolving_list_add_entries[(MAX_NUM_RESOLVING_LIST_ENTRIES + 7) / 8]; 1273 uint8_t le_resolving_list_set_privacy_mode[(MAX_NUM_RESOLVING_LIST_ENTRIES + 7) / 8]; 1274 uint8_t le_resolving_list_remove_entries[(MAX_NUM_RESOLVING_LIST_ENTRIES + 7) / 8]; 1275 #endif 1276 1277 #ifdef ENABLE_CLASSIC_PAIRING_OOB 1278 bool classic_read_local_oob_data; 1279 hci_con_handle_t classic_oob_con_handle; 1280 #endif 1281 1282 #ifdef HAVE_SCO_TRANSPORT 1283 const btstack_sco_transport_t * sco_transport; 1284 #endif 1285 } hci_stack_t; 1286 1287 1288 /* API_START */ 1289 1290 1291 // HCI init and configuration 1292 1293 1294 /** 1295 * @brief Set up HCI. Needs to be called before any other function. 1296 */ 1297 void hci_init(const hci_transport_t *transport, const void *config); 1298 1299 /** 1300 * @brief Configure Bluetooth chipset driver. Has to be called before power on, or right after receiving the local version information. 1301 */ 1302 void hci_set_chipset(const btstack_chipset_t *chipset_driver); 1303 1304 /** 1305 * @brief Enable custom init for chipset driver to send HCI commands before HCI Reset 1306 */ 1307 void hci_enable_custom_pre_init(void); 1308 1309 /** 1310 * @brief Configure Bluetooth hardware control. Has to be called before power on. 1311 * @[aram hardware_control implementation 1312 */ 1313 void hci_set_control(const btstack_control_t *hardware_control); 1314 1315 #ifdef HAVE_SCO_TRANSPORT 1316 /** 1317 * @brief Set SCO Transport implementation for SCO over PCM mode 1318 * @param sco_transport that sends SCO over I2S or PCM interface 1319 */ 1320 void hci_set_sco_transport(const btstack_sco_transport_t *sco_transport); 1321 #endif 1322 1323 #ifdef ENABLE_CLASSIC 1324 /** 1325 * @brief Configure Bluetooth hardware control. Has to be called before power on. 1326 */ 1327 void hci_set_link_key_db(btstack_link_key_db_t const * link_key_db); 1328 #endif 1329 1330 /** 1331 * @brief Set callback for Bluetooth Hardware Error 1332 */ 1333 void hci_set_hardware_error_callback(void (*fn)(uint8_t error)); 1334 1335 /** 1336 * @brief Set Public BD ADDR - passed on to Bluetooth chipset during init if supported in bt_control_h 1337 */ 1338 void hci_set_bd_addr(bd_addr_t addr); 1339 1340 /** 1341 * @brief Configure Voice Setting for use with SCO data in HSP/HFP 1342 */ 1343 void hci_set_sco_voice_setting(uint16_t voice_setting); 1344 1345 /** 1346 * @brief Get SCO Voice Setting 1347 * @return current voice setting 1348 */ 1349 uint16_t hci_get_sco_voice_setting(void); 1350 1351 /** 1352 * @brief Set number of ISO packets to buffer for BIS/CIS 1353 * @param num_packets (default = 1) 1354 */ 1355 void hci_set_num_iso_packets_to_queue(uint8_t num_packets); 1356 1357 /** 1358 * @brief Set inquiry mode: standard, with RSSI, with RSSI + Extended Inquiry Results. Has to be called before power on. 1359 * @param inquriy_mode see bluetooth_defines.h 1360 */ 1361 void hci_set_inquiry_mode(inquiry_mode_t inquriy_mode); 1362 1363 /** 1364 * @brief Requests the change of BTstack power mode. 1365 * @param power_mode 1366 * @return 0 if success, otherwise error 1367 */ 1368 int hci_power_control(HCI_POWER_MODE power_mode); 1369 1370 /** 1371 * @brief Shutdown HCI 1372 */ 1373 void hci_close(void); 1374 1375 1376 // Callback registration 1377 1378 1379 /** 1380 * @brief Add event packet handler. 1381 */ 1382 void hci_add_event_handler(btstack_packet_callback_registration_t * callback_handler); 1383 1384 /** 1385 * @brief Remove event packet handler. 1386 */ 1387 void hci_remove_event_handler(btstack_packet_callback_registration_t * callback_handler); 1388 1389 /** 1390 * @brief Registers a packet handler for ACL data. Used by L2CAP 1391 */ 1392 void hci_register_acl_packet_handler(btstack_packet_handler_t handler); 1393 1394 /** 1395 * @brief Registers a packet handler for SCO data. Used for HSP and HFP profiles. 1396 */ 1397 void hci_register_sco_packet_handler(btstack_packet_handler_t handler); 1398 1399 /** 1400 * @brief Registers a packet handler for ISO data. Used for LE Audio profiles 1401 */ 1402 void hci_register_iso_packet_handler(btstack_packet_handler_t handler); 1403 1404 // Sending HCI Commands 1405 1406 /** 1407 * @brief Check if CMD packet can be sent to controller 1408 * @return true if command can be sent 1409 */ 1410 bool hci_can_send_command_packet_now(void); 1411 1412 /** 1413 * @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. 1414 * @return status 1415 */ 1416 uint8_t hci_send_cmd(const hci_cmd_t * cmd, ...); 1417 1418 1419 // Sending SCO Packets 1420 1421 /** @brief Get SCO packet length for current SCO Voice setting 1422 * @note Using SCO packets of the exact length is required for USB transfer 1423 * @return Length of SCO packets in bytes (not audio frames) incl. 3 byte header 1424 */ 1425 uint16_t hci_get_sco_packet_length(void); 1426 1427 /** 1428 * @brief Request emission of HCI_EVENT_SCO_CAN_SEND_NOW as soon as possible 1429 * @note HCI_EVENT_SCO_CAN_SEND_NOW might be emitted during call to this function 1430 * so packet handler should be ready to handle it 1431 */ 1432 void hci_request_sco_can_send_now_event(void); 1433 1434 /** 1435 * @brief Check HCI packet buffer and if SCO packet can be sent to controller 1436 * @return true if sco packet can be sent 1437 */ 1438 bool hci_can_send_sco_packet_now(void); 1439 1440 /** 1441 * @brief Check if SCO packet can be sent to controller 1442 * @return true if sco packet can be sent 1443 */ 1444 bool hci_can_send_prepared_sco_packet_now(void); 1445 1446 /** 1447 * @brief Send SCO packet prepared in HCI packet buffer 1448 */ 1449 uint8_t hci_send_sco_packet_buffer(int size); 1450 1451 /** 1452 * @brief Request emission of HCI_EVENT_BIS_CAN_SEND_NOW for all BIS as soon as possible 1453 * @param big_handle 1454 * @note HCI_EVENT_ISO_CAN_SEND_NOW might be emitted during call to this function 1455 * so packet handler should be ready to handle it 1456 */ 1457 uint8_t hci_request_bis_can_send_now_events(uint8_t big_handle); 1458 1459 /** 1460 * @brief Request emission of HCI_EVENT_CIS_CAN_SEND_NOW for CIS as soon as possible 1461 * @param cis_con_handle 1462 * @note HCI_EVENT_CIS_CAN_SEND_NOW might be emitted during call to this function 1463 * so packet handler should be ready to handle it 1464 */ 1465 uint8_t hci_request_cis_can_send_now_events(hci_con_handle_t cis_con_handle); 1466 1467 /** 1468 * @brief Send ISO packet prepared in HCI packet buffer 1469 */ 1470 uint8_t hci_send_iso_packet_buffer(uint16_t size); 1471 1472 /** 1473 * Reserves outgoing packet buffer. 1474 * @return true on success 1475 */ 1476 bool hci_reserve_packet_buffer(void); 1477 1478 /** 1479 * Get pointer for outgoing packet buffer 1480 */ 1481 uint8_t* hci_get_outgoing_packet_buffer(void); 1482 1483 /** 1484 * Release outgoing packet buffer\ 1485 * @note only called instead of hci_send_preparared 1486 */ 1487 void hci_release_packet_buffer(void); 1488 1489 /** 1490 * @brief Sets the master/slave policy 1491 * @param policy (0: attempt to become master, 1: let connecting device decide) 1492 */ 1493 void hci_set_master_slave_policy(uint8_t policy); 1494 1495 /* API_END */ 1496 1497 1498 /** 1499 * va_list version of hci_send_cmd, call hci_send_cmd_packet 1500 * @return status 1501 */ 1502 uint8_t hci_send_cmd_va_arg(const hci_cmd_t * cmd, va_list argptr); 1503 1504 /** 1505 * Get connection iterator. Only used by l2cap.c and sm.c 1506 */ 1507 void hci_connections_get_iterator(btstack_linked_list_iterator_t *it); 1508 1509 /** 1510 * Get internal hci_connection_t for given handle. Used by L2CAP, SM, daemon 1511 */ 1512 hci_connection_t * hci_connection_for_handle(hci_con_handle_t con_handle); 1513 1514 /** 1515 * Get internal hci_connection_t for given Bluetooth addres. Called by L2CAP 1516 */ 1517 hci_connection_t * hci_connection_for_bd_addr_and_type(const bd_addr_t addr, bd_addr_type_t addr_type); 1518 1519 /** 1520 * Check if outgoing packet buffer is reserved. Used for internal checks in l2cap.c 1521 * @return true if packet buffer is reserved 1522 */ 1523 bool hci_is_packet_buffer_reserved(void); 1524 1525 /** 1526 * Check hci packet buffer is free and a classic acl packet can be sent to controller 1527 * @return true if ACL Classic packet can be sent now 1528 */ 1529 bool hci_can_send_acl_classic_packet_now(void); 1530 1531 /** 1532 * Check hci packet buffer is free and an LE acl packet can be sent to controller 1533 * @return true if ACL LE packet can be sent now 1534 */ 1535 bool hci_can_send_acl_le_packet_now(void); 1536 1537 /** 1538 * Check hci packet buffer is free and an acl packet for the given handle can be sent to controller 1539 * @return true if ACL packet for con_handle can be sent now 1540 */ 1541 bool hci_can_send_acl_packet_now(hci_con_handle_t con_handle); 1542 1543 /** 1544 * Check if acl packet for the given handle can be sent to controller 1545 * @return true if ACL packet for con_handle can be sent now 1546 */ 1547 bool hci_can_send_prepared_acl_packet_now(hci_con_handle_t con_handle); 1548 1549 /** 1550 * Send acl packet prepared in hci packet buffer 1551 * @return status 1552 */ 1553 uint8_t hci_send_acl_packet_buffer(int size); 1554 1555 /** 1556 * Check if authentication is active. It delays automatic disconnect while no L2CAP connection 1557 * Called by l2cap. 1558 */ 1559 bool hci_authentication_active_for_handle(hci_con_handle_t handle); 1560 1561 /** 1562 * Get maximal ACL Classic data packet length based on used buffer size. Called by L2CAP 1563 */ 1564 uint16_t hci_max_acl_data_packet_length(void); 1565 1566 /** 1567 * Get supported packet types. Called by L2CAP 1568 */ 1569 uint16_t hci_usable_acl_packet_types(void); 1570 1571 /** 1572 * Check if ACL packets marked as non flushable can be sent. Called by L2CAP 1573 */ 1574 bool hci_non_flushable_packet_boundary_flag_supported(void); 1575 1576 /** 1577 * Return current automatic flush timeout setting 1578 */ 1579 uint16_t hci_automatic_flush_timeout(void); 1580 1581 /** 1582 * Check if remote supported features query has completed 1583 */ 1584 bool hci_remote_features_available(hci_con_handle_t con_handle); 1585 1586 /** 1587 * Trigger remote supported features query 1588 */ 1589 void hci_remote_features_query(hci_con_handle_t con_handle); 1590 1591 /** 1592 * Check if extended SCO Link is supported 1593 */ 1594 bool hci_extended_sco_link_supported(void); 1595 1596 /** 1597 * Check if SSP is supported on both sides. Called by L2CAP 1598 */ 1599 bool gap_ssp_supported_on_both_sides(hci_con_handle_t handle); 1600 1601 /** 1602 * Disconn because of security block. Called by L2CAP 1603 */ 1604 void hci_disconnect_security_block(hci_con_handle_t con_handle); 1605 1606 /** 1607 * Query if remote side supports eSCO 1608 */ 1609 bool hci_remote_esco_supported(hci_con_handle_t con_handle); 1610 1611 /** 1612 * Emit current HCI state. Called by daemon 1613 */ 1614 void hci_emit_state(void); 1615 1616 /** 1617 * Send complete CMD packet. Called by daemon and hci_send_cmd_va_arg 1618 * @return status 1619 */ 1620 uint8_t hci_send_cmd_packet(uint8_t *packet, int size); 1621 1622 /** 1623 * Disconnect all HCI connections. Called by daemon 1624 */ 1625 void hci_disconnect_all(void); 1626 1627 /** 1628 * Get number of free acl slots for packets of given handle. Called by daemon 1629 */ 1630 int hci_number_free_acl_slots_for_handle(hci_con_handle_t con_handle); 1631 1632 /** 1633 * @brief Set Advertisement Parameters 1634 * @param adv_int_min 1635 * @param adv_int_max 1636 * @param adv_type 1637 * @param direct_address_type 1638 * @param direct_address 1639 * @param channel_map 1640 * @param filter_policy 1641 * 1642 * @note internal use. use gap_advertisements_set_params from gap.h instead. 1643 */ 1644 void hci_le_advertisements_set_params(uint16_t adv_int_min, uint16_t adv_int_max, uint8_t adv_type, 1645 uint8_t direct_address_typ, bd_addr_t direct_address, uint8_t channel_map, uint8_t filter_policy); 1646 1647 /** 1648 * 1649 * @note internal use. use gap_random_address_set_mode from gap.h instead. 1650 */ 1651 void hci_le_set_own_address_type(uint8_t own_address_type); 1652 1653 /** 1654 * @naote internal use. use gap_random_address_set from gap.h instead 1655 */ 1656 void hci_le_random_address_set(const bd_addr_t random_address); 1657 1658 /** 1659 * @note internal use by sm 1660 */ 1661 void hci_load_le_device_db_entry_into_resolving_list(uint16_t le_device_db_index); 1662 1663 /** 1664 * @note internal use by sm 1665 */ 1666 void hci_remove_le_device_db_entry_from_resolving_list(uint16_t le_device_db_index); 1667 1668 /** 1669 * @note internal use 1670 */ 1671 uint16_t hci_number_free_acl_slots_for_connection_type(bd_addr_type_t address_type); 1672 1673 /** 1674 * @brief Clear Periodic Advertiser List 1675 * @return status 1676 */ 1677 uint8_t gap_periodic_advertiser_list_clear(void); 1678 1679 /** 1680 * @brief Add entry to Periodic Advertiser List 1681 * @param address_type 1682 * @param address 1683 * @param advertising_sid 1684 * @return 1685 */ 1686 uint8_t gap_periodic_advertiser_list_add(bd_addr_type_t address_type, const bd_addr_t address, uint8_t advertising_sid); 1687 1688 /** 1689 * Remove entry from Periodic Advertising List 1690 * @param address_type 1691 * @param address 1692 * @param advertising_sid 1693 * @return 1694 */ 1695 uint8_t gap_periodic_advertiser_list_remove(bd_addr_type_t address_type, const bd_addr_t address, uint8_t advertising_sid); 1696 1697 /** 1698 * @brief Synchronize with a periodic advertising train from an advertiser and begin receiving periodic advertising packets. 1699 * @param options 1700 * @param advertising_sid 1701 * @param advertiser_address_type 1702 * @param advertiser_address 1703 * @param skip 1704 * @param sync_timeout 1705 * @param sync_cte_type 1706 * @return 1707 */ 1708 uint8_t gap_periodic_advertising_create_sync(uint8_t options, uint8_t advertising_sid, bd_addr_type_t advertiser_address_type, 1709 bd_addr_t advertiser_address, uint16_t skip, uint16_t sync_timeout, uint8_t sync_cte_type); 1710 1711 /** 1712 * @brief Cancel sync periodic advertising train while it is pending. 1713 * @return status 1714 */ 1715 uint8_t gap_periodic_advertising_create_sync_cancel(void); 1716 1717 /** 1718 * @biref Stop reception of the periodic advertising train 1719 * @param sync_handle 1720 * @return status 1721 */ 1722 uint8_t gap_periodic_advertising_terminate_sync(uint16_t sync_handle); 1723 1724 /** 1725 * @brief Get Controller Manufacturer 1726 * @returns company_id - see bluetooth_company_id.h 1727 */ 1728 uint16_t hci_get_manufacturer(void); 1729 1730 // Only for PTS testing 1731 1732 /** 1733 * Disable automatic L2CAP disconnect if no L2CAP connection is established 1734 */ 1735 void hci_disable_l2cap_timeout_check(void); 1736 1737 /** 1738 * Get Classic Allow Role Switch param 1739 */ 1740 uint8_t hci_get_allow_role_switch(void); 1741 1742 /** 1743 * Get state 1744 */ 1745 HCI_STATE hci_get_state(void); 1746 1747 /** 1748 * @brief De-Init HCI 1749 */ 1750 void hci_deinit(void); 1751 1752 // setup test connections, used for fuzzing 1753 void hci_setup_test_connections_fuzz(void); 1754 1755 // free all connections, used for fuzzing 1756 void hci_free_connections_fuzz(void); 1757 1758 // simulate stack bootup 1759 void hci_simulate_working_fuzz(void); 1760 1761 1762 #if defined __cplusplus 1763 } 1764 #endif 1765 1766 #endif // HCI_H 1767