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_DEDICATED_DEFER_DISCONNECT = 0x10000, 274 BONDING_EMIT_COMPLETE_ON_DISCONNECT = 0x20000, 275 }; 276 277 typedef enum { 278 BLUETOOTH_OFF = 1, 279 BLUETOOTH_ON, 280 BLUETOOTH_ACTIVE 281 } BLUETOOTH_STATE; 282 283 typedef enum { 284 LE_CONNECTING_IDLE, 285 LE_CONNECTING_CANCEL, 286 LE_CONNECTING_DIRECT, 287 LE_CONNECTING_WHITELIST, 288 } le_connecting_state_t; 289 290 #ifdef ENABLE_BLE 291 292 // 293 // SM internal types and globals 294 // 295 296 typedef enum { 297 298 // general states 299 SM_GENERAL_IDLE, 300 SM_GENERAL_SEND_PAIRING_FAILED, 301 SM_GENERAL_TIMEOUT, // no other security messages are exchanged 302 SM_GENERAL_REENCRYPTION_FAILED, 303 304 // Phase 1: Pairing Feature Exchange 305 SM_PH1_W4_USER_RESPONSE, 306 307 // Phase 2: Authenticating and Encrypting 308 309 // get random number for use as TK Passkey if we show it 310 SM_PH2_GET_RANDOM_TK, 311 SM_PH2_W4_RANDOM_TK, 312 313 // get local random number for confirm c1 314 SM_PH2_C1_GET_RANDOM_A, 315 SM_PH2_C1_W4_RANDOM_A, 316 SM_PH2_C1_GET_RANDOM_B, 317 SM_PH2_C1_W4_RANDOM_B, 318 319 // calculate confirm value for local side 320 SM_PH2_C1_GET_ENC_A, 321 SM_PH2_C1_W4_ENC_A, 322 323 // calculate confirm value for remote side 324 SM_PH2_C1_GET_ENC_C, 325 SM_PH2_C1_W4_ENC_C, 326 327 SM_PH2_C1_SEND_PAIRING_CONFIRM, 328 SM_PH2_SEND_PAIRING_RANDOM, 329 330 // calc STK 331 SM_PH2_CALC_STK, 332 SM_PH2_W4_STK, 333 334 SM_PH2_W4_CONNECTION_ENCRYPTED, 335 336 // Phase 3: Transport Specific Key Distribution 337 // calculate DHK, Y, EDIV, and LTK 338 SM_PH3_Y_GET_ENC, 339 SM_PH3_Y_W4_ENC, 340 SM_PH3_LTK_GET_ENC, 341 342 // exchange keys 343 SM_PH3_DISTRIBUTE_KEYS, 344 SM_PH3_RECEIVE_KEYS, 345 346 // Phase 4: re-establish previously distributed LTK 347 SM_PH4_W4_CONNECTION_ENCRYPTED, 348 349 // RESPONDER ROLE 350 SM_RESPONDER_IDLE, 351 SM_RESPONDER_SEND_SECURITY_REQUEST, 352 SM_RESPONDER_PH0_RECEIVED_LTK_REQUEST, 353 SM_RESPONDER_PH0_RECEIVED_LTK_W4_IRK, 354 SM_RESPONDER_PH0_SEND_LTK_REQUESTED_NEGATIVE_REPLY, 355 SM_RESPONDER_PH1_W4_PAIRING_REQUEST, 356 SM_RESPONDER_PH1_PAIRING_REQUEST_RECEIVED, 357 SM_RESPONDER_PH1_PAIRING_REQUEST_RECEIVED_W4_IRK, 358 SM_RESPONDER_PH1_SEND_PAIRING_RESPONSE, 359 SM_RESPONDER_PH1_W4_PAIRING_CONFIRM, 360 SM_RESPONDER_PH2_W4_PAIRING_RANDOM, 361 SM_RESPONDER_PH2_W4_LTK_REQUEST, 362 SM_RESPONDER_PH2_SEND_LTK_REPLY, 363 SM_RESPONDER_PH4_Y_W4_ENC, 364 SM_RESPONDER_PH4_SEND_LTK_REPLY, 365 366 // INITIATOR ROLE 367 SM_INITIATOR_CONNECTED, 368 SM_INITIATOR_PH1_W2_SEND_PAIRING_REQUEST, 369 SM_INITIATOR_PH1_W4_PAIRING_RESPONSE, 370 SM_INITIATOR_PH2_W4_PAIRING_CONFIRM, 371 SM_INITIATOR_PH2_W4_PAIRING_RANDOM, 372 SM_INITIATOR_PH3_SEND_START_ENCRYPTION, 373 SM_INITIATOR_PH4_HAS_LTK, 374 375 // LE Secure Connections 376 SM_SC_RECEIVED_LTK_REQUEST, 377 SM_SC_SEND_PUBLIC_KEY_COMMAND, 378 SM_SC_W4_PUBLIC_KEY_COMMAND, 379 SM_SC_W4_LOCAL_NONCE, 380 SM_SC_W2_CMAC_FOR_CONFIRMATION, 381 SM_SC_W4_CMAC_FOR_CONFIRMATION, 382 SM_SC_SEND_CONFIRMATION, 383 SM_SC_W2_CMAC_FOR_CHECK_CONFIRMATION, 384 SM_SC_W4_CMAC_FOR_CHECK_CONFIRMATION, 385 SM_SC_W4_CONFIRMATION, 386 SM_SC_SEND_PAIRING_RANDOM, 387 SM_SC_W4_PAIRING_RANDOM, 388 SM_SC_W2_CALCULATE_G2, 389 SM_SC_W4_CALCULATE_G2, 390 SM_SC_W4_CALCULATE_DHKEY, 391 SM_SC_W2_CALCULATE_F5_SALT, 392 SM_SC_W4_CALCULATE_F5_SALT, 393 SM_SC_W2_CALCULATE_F5_MACKEY, 394 SM_SC_W4_CALCULATE_F5_MACKEY, 395 SM_SC_W2_CALCULATE_F5_LTK, 396 SM_SC_W4_CALCULATE_F5_LTK, 397 SM_SC_W2_CALCULATE_F6_FOR_DHKEY_CHECK, 398 SM_SC_W4_CALCULATE_F6_FOR_DHKEY_CHECK, 399 SM_SC_W2_CALCULATE_F6_TO_VERIFY_DHKEY_CHECK, 400 SM_SC_W4_CALCULATE_F6_TO_VERIFY_DHKEY_CHECK, 401 SM_SC_W4_USER_RESPONSE, 402 SM_SC_SEND_DHKEY_CHECK_COMMAND, 403 SM_SC_W4_DHKEY_CHECK_COMMAND, 404 SM_SC_W4_LTK_REQUEST_SC, 405 SM_SC_W2_CALCULATE_ILK_USING_H6, 406 SM_SC_W2_CALCULATE_ILK_USING_H7, 407 SM_SC_W4_CALCULATE_ILK, 408 SM_SC_W2_CALCULATE_BR_EDR_LINK_KEY, 409 SM_SC_W4_CALCULATE_BR_EDR_LINK_KEY, 410 411 // Classic 412 SM_BR_EDR_W4_ENCRYPTION_COMPLETE, 413 SM_BR_EDR_INITIATOR_W4_FIXED_CHANNEL_MASK, 414 SM_BR_EDR_INITIATOR_SEND_PAIRING_REQUEST, 415 SM_BR_EDR_INITIATOR_W4_PAIRING_RESPONSE, 416 SM_BR_EDR_RESPONDER_W4_PAIRING_REQUEST, 417 SM_BR_EDR_RESPONDER_PAIRING_REQUEST_RECEIVED, 418 SM_BR_EDR_DISTRIBUTE_KEYS, 419 SM_BR_EDR_RECEIVE_KEYS, 420 SM_BR_EDR_W2_CALCULATE_ILK_USING_H6, 421 SM_BR_EDR_W2_CALCULATE_ILK_USING_H7, 422 SM_BR_EDR_W4_CALCULATE_ILK, 423 SM_BR_EDR_W2_CALCULATE_LE_LTK, 424 SM_BR_EDR_W4_CALCULATE_LE_LTK, 425 } security_manager_state_t; 426 427 typedef enum { 428 IRK_LOOKUP_IDLE, 429 IRK_LOOKUP_W4_READY, 430 IRK_LOOKUP_STARTED, 431 IRK_LOOKUP_SUCCEEDED, 432 IRK_LOOKUP_FAILED 433 } irk_lookup_state_t; 434 435 typedef uint8_t sm_pairing_packet_t[7]; 436 437 // connection info available as long as connection exists 438 typedef struct sm_connection { 439 hci_con_handle_t sm_handle; 440 uint16_t sm_cid; 441 uint8_t sm_role; // 0 - IamMaster, 1 = IamSlave 442 uint8_t sm_security_request_received; 443 uint8_t sm_pairing_requested; 444 uint8_t sm_peer_addr_type; 445 bd_addr_t sm_peer_address; 446 uint8_t sm_own_addr_type; 447 bd_addr_t sm_own_address; 448 security_manager_state_t sm_engine_state; 449 irk_lookup_state_t sm_irk_lookup_state; 450 uint8_t sm_pairing_failed_reason; 451 uint8_t sm_connection_encrypted; 452 uint8_t sm_connection_authenticated; // [0..1] 453 uint8_t sm_connection_sc; 454 uint8_t sm_actual_encryption_key_size; 455 sm_pairing_packet_t sm_m_preq; // only used during c1 456 authorization_state_t sm_connection_authorization_state; 457 uint16_t sm_local_ediv; 458 uint8_t sm_local_rand[8]; 459 int sm_le_db_index; 460 bool sm_pairing_active; 461 bool sm_reencryption_active; 462 } sm_connection_t; 463 464 // 465 // ATT Server 466 // 467 468 // max ATT request matches L2CAP PDU -- allow to use smaller buffer 469 #ifndef ATT_REQUEST_BUFFER_SIZE 470 #define ATT_REQUEST_BUFFER_SIZE HCI_ACL_PAYLOAD_SIZE 471 #endif 472 473 typedef enum { 474 ATT_SERVER_IDLE, 475 ATT_SERVER_REQUEST_RECEIVED, 476 ATT_SERVER_W4_SIGNED_WRITE_VALIDATION, 477 ATT_SERVER_REQUEST_RECEIVED_AND_VALIDATED, 478 ATT_SERVER_RESPONSE_PENDING, 479 } att_server_state_t; 480 481 typedef struct { 482 att_server_state_t state; 483 484 uint8_t peer_addr_type; 485 bd_addr_t peer_address; 486 487 int ir_le_device_db_index; 488 uint8_t ir_lookup_active; 489 uint8_t pairing_active; 490 491 uint16_t value_indication_handle; 492 btstack_timer_source_t value_indication_timer; 493 494 btstack_linked_list_t notification_requests; 495 btstack_linked_list_t indication_requests; 496 497 #ifdef ENABLE_GATT_OVER_CLASSIC 498 uint16_t l2cap_cid; 499 #endif 500 501 uint16_t request_size; 502 uint8_t request_buffer[ATT_REQUEST_BUFFER_SIZE]; 503 504 } att_server_t; 505 506 #endif 507 508 typedef enum { 509 L2CAP_INFORMATION_STATE_IDLE = 0, 510 L2CAP_INFORMATION_STATE_W2_SEND_EXTENDED_FEATURE_REQUEST, 511 L2CAP_INFORMATION_STATE_W4_EXTENDED_FEATURE_RESPONSE, 512 L2CAP_INFORMATION_STATE_W2_SEND_FIXED_CHANNELS_REQUEST, 513 L2CAP_INFORMATION_STATE_W4_FIXED_CHANNELS_RESPONSE, 514 L2CAP_INFORMATION_STATE_DONE 515 } l2cap_information_state_t; 516 517 typedef struct { 518 l2cap_information_state_t information_state; 519 uint16_t extended_feature_mask; 520 uint16_t fixed_channels_supported; // Core V5.3 - only first octet used 521 } l2cap_state_t; 522 523 // 524 typedef struct { 525 // linked list - assert: first field 526 btstack_linked_item_t item; 527 528 // remote side 529 bd_addr_t address; 530 531 // module handle 532 hci_con_handle_t con_handle; 533 534 // le public, le random, classic 535 bd_addr_type_t address_type; 536 537 // role: 0 - master, 1 - slave 538 hci_role_t role; 539 540 // connection state 541 CONNECTION_STATE state; 542 543 // bonding 544 uint32_t bonding_flags; 545 uint8_t bonding_status; 546 547 // encryption key size (in octets) 548 uint8_t encryption_key_size; 549 550 // requested security level 551 gap_security_level_t requested_security_level; 552 553 // link key and its type for Classic connections 554 // LTK and LTK valid flag for LE connections 555 link_key_t link_key; 556 link_key_type_t link_key_type; 557 558 #ifdef ENABLE_CLASSIC 559 // remote supported SCO packets based on remote supported features mask 560 uint16_t remote_supported_sco_packets; 561 562 // remote supported features 563 /* bit 0 - eSCO */ 564 /* bit 1 - extended features */ 565 uint8_t remote_supported_features[1]; 566 567 // IO Capabilities Response 568 uint8_t io_cap_response_auth_req; 569 uint8_t io_cap_response_io; 570 #ifdef ENABLE_CLASSIC_PAIRING_OOB 571 uint8_t io_cap_response_oob_data; 572 #endif 573 574 // connection mode, default ACL_CONNECTION_MODE_ACTIVE 575 uint8_t connection_mode; 576 577 // enter/exit sniff mode requests 578 uint16_t sniff_min_interval; // 0: idle, 0xffff exit sniff, else enter sniff 579 uint16_t sniff_max_interval; 580 uint16_t sniff_attempt; 581 uint16_t sniff_timeout; 582 583 // sniff subrating 584 uint16_t sniff_subrating_max_latency; // 0xffff = not set 585 uint16_t sniff_subrating_min_remote_timeout; 586 uint16_t sniff_subrating_min_local_timeout; 587 588 // QoS 589 hci_service_type_t qos_service_type; 590 uint32_t qos_token_rate; 591 uint32_t qos_peak_bandwidth; 592 uint32_t qos_latency; 593 uint32_t qos_delay_variation; 594 595 #ifdef ENABLE_SCO_OVER_HCI 596 // track SCO rx event 597 uint32_t sco_rx_ms; 598 uint8_t sco_rx_count; 599 uint8_t sco_rx_valid; 600 #endif 601 // generate sco can send now based on received packets, using timeout below 602 uint8_t sco_tx_ready; 603 604 // request role switch 605 hci_role_t request_role; 606 607 btstack_timer_source_t timeout_sco; 608 #endif /* ENABLE_CLASSIC */ 609 610 // authentication and other errands 611 uint16_t authentication_flags; 612 613 // gap connection tasks, see GAP_CONNECTION_TASK_x 614 uint16_t gap_connection_tasks; 615 616 btstack_timer_source_t timeout; 617 618 // timeout in system ticks (HAVE_EMBEDDED_TICK) or milliseconds (HAVE_EMBEDDED_TIME_MS) 619 uint32_t timestamp; 620 621 // ACL packet recombination - PRE_BUFFER + ACL Header + ACL payload 622 uint8_t acl_recombination_buffer[HCI_INCOMING_PRE_BUFFER_SIZE + 4 + HCI_ACL_BUFFER_SIZE]; 623 uint16_t acl_recombination_pos; 624 uint16_t acl_recombination_length; 625 626 627 // number packets sent to controller 628 uint8_t num_packets_sent; 629 630 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 631 uint8_t num_packets_completed; 632 #endif 633 634 // LE Connection parameter update 635 le_con_parameter_update_state_t le_con_parameter_update_state; 636 uint8_t le_con_param_update_identifier; 637 uint16_t le_conn_interval_min; 638 uint16_t le_conn_interval_max; 639 uint16_t le_conn_latency; 640 uint16_t le_supervision_timeout; 641 642 #ifdef ENABLE_BLE 643 uint16_t le_connection_interval; 644 645 // LE PHY Update via set phy command 646 uint8_t le_phy_update_all_phys; // 0xff for idle 647 uint8_t le_phy_update_tx_phys; 648 uint8_t le_phy_update_rx_phys; 649 int8_t le_phy_update_phy_options; 650 651 // LE Security Manager 652 sm_connection_t sm_connection; 653 654 #ifdef ENABLE_LE_LIMIT_ACL_FRAGMENT_BY_MAX_OCTETS 655 uint16_t le_max_tx_octets; 656 #endif 657 658 // ATT Connection 659 att_connection_t att_connection; 660 661 // ATT Server 662 att_server_t att_server; 663 664 #ifdef ENABLE_LE_PERIODIC_ADVERTISING 665 hci_con_handle_t le_past_sync_handle; 666 uint16_t le_past_service_data; 667 #endif 668 669 #endif 670 671 l2cap_state_t l2cap_state; 672 673 #ifdef ENABLE_CLASSIC_PAIRING_OOB 674 const uint8_t * classic_oob_c_192; 675 const uint8_t * classic_oob_r_192; 676 const uint8_t * classic_oob_c_256; 677 const uint8_t * classic_oob_r_256; 678 #endif 679 680 } hci_connection_t; 681 682 #ifdef ENABLE_LE_ISOCHRONOUS_STREAMS 683 684 685 typedef enum { 686 HCI_ISO_TYPE_INVALID = 0, 687 HCI_ISO_TYPE_BIS, 688 HCI_ISO_TYPE_CIS, 689 } hci_iso_type_t; 690 691 #define HCI_ISO_GROUP_ID_SINGLE_CIS 0xfe 692 #define HCI_ISO_GROUP_ID_INVALID 0xff 693 694 typedef enum{ 695 HCI_ISO_STREAM_STATE_IDLE, 696 HCI_ISO_STREAM_W4_USER, 697 HCI_ISO_STREAM_W2_ACCEPT, 698 HCI_ISO_STREAM_W2_REJECT, 699 HCI_ISO_STREAM_STATE_REQUESTED, 700 HCI_ISO_STREAM_STATE_W4_ESTABLISHED, 701 HCI_ISO_STREAM_STATE_ESTABLISHED, 702 HCI_ISO_STREAM_STATE_W2_SETUP_ISO_INPUT, 703 HCI_ISO_STREAM_STATE_W4_ISO_SETUP_INPUT, 704 HCI_ISO_STREAM_STATE_W2_SETUP_ISO_OUTPUT, 705 HCI_ISO_STREAM_STATE_W4_ISO_SETUP_OUTPUT, 706 } hci_iso_stream_state_t; 707 708 typedef struct { 709 // linked list - assert: first field 710 btstack_linked_item_t item; 711 712 // state 713 hci_iso_stream_state_t state; 714 715 // iso type: bis or cis 716 hci_iso_type_t iso_type; 717 718 // group_id: big_handle or cig_id 719 uint8_t group_id; 720 721 // stream_id: bis_index or cis_id 722 uint8_t stream_id; 723 724 // only valid for HCI_ISO_TYPE_CIS 725 hci_con_handle_t cis_handle; 726 hci_con_handle_t acl_handle; 727 728 // connection info 729 uint16_t max_sdu_c_to_p; 730 uint16_t max_sdu_p_to_c; 731 732 // re-assembly buffer 733 uint16_t reassembly_pos; 734 uint8_t reassembly_buffer[HCI_ISO_PAYLOAD_SIZE]; 735 736 // number packets sent to controller 737 uint8_t num_packets_sent; 738 739 // packets to skip due to queuing them to late before 740 uint8_t num_packets_to_skip; 741 742 // request to send 743 bool can_send_now_requested; 744 745 // ready to send 746 bool emit_ready_to_send; 747 748 } hci_iso_stream_t; 749 #endif 750 751 /** 752 * HCI Initialization State Machine 753 */ 754 typedef enum hci_init_state{ 755 HCI_INIT_SEND_RESET = 0, 756 HCI_INIT_W4_SEND_RESET, 757 HCI_INIT_SEND_READ_LOCAL_VERSION_INFORMATION, 758 HCI_INIT_W4_SEND_READ_LOCAL_VERSION_INFORMATION, 759 760 #ifndef HAVE_HOST_CONTROLLER_API 761 HCI_INIT_SEND_READ_LOCAL_NAME, 762 HCI_INIT_W4_SEND_READ_LOCAL_NAME, 763 HCI_INIT_SEND_BAUD_CHANGE, 764 HCI_INIT_W4_SEND_BAUD_CHANGE, 765 HCI_INIT_CUSTOM_INIT, 766 HCI_INIT_W4_CUSTOM_INIT, 767 768 HCI_INIT_SEND_RESET_CSR_WARM_BOOT, 769 HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT, 770 HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT_LINK_RESET, 771 772 HCI_INIT_W4_CUSTOM_INIT_BCM_DELAY, 773 774 // Support for Pre-Init before HCI Reset 775 HCI_INIT_CUSTOM_PRE_INIT, 776 HCI_INIT_W4_CUSTOM_PRE_INIT, 777 #endif 778 779 HCI_INIT_READ_LOCAL_SUPPORTED_COMMANDS, 780 HCI_INIT_W4_READ_LOCAL_SUPPORTED_COMMANDS, 781 782 HCI_INIT_SEND_BAUD_CHANGE_BCM, 783 HCI_INIT_W4_SEND_BAUD_CHANGE_BCM, 784 785 HCI_INIT_SET_BD_ADDR, 786 HCI_INIT_W4_SET_BD_ADDR, 787 788 HCI_INIT_SEND_RESET_ST_WARM_BOOT, 789 HCI_INIT_W4_SEND_RESET_ST_WARM_BOOT, 790 791 HCI_INIT_READ_BD_ADDR, 792 HCI_INIT_W4_READ_BD_ADDR, 793 794 HCI_INIT_READ_BUFFER_SIZE, 795 HCI_INIT_W4_READ_BUFFER_SIZE, 796 HCI_INIT_READ_LOCAL_SUPPORTED_FEATURES, 797 HCI_INIT_W4_READ_LOCAL_SUPPORTED_FEATURES, 798 799 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 800 HCI_INIT_HOST_BUFFER_SIZE, 801 HCI_INIT_W4_HOST_BUFFER_SIZE, 802 HCI_INIT_SET_CONTROLLER_TO_HOST_FLOW_CONTROL, 803 HCI_INIT_W4_SET_CONTROLLER_TO_HOST_FLOW_CONTROL, 804 #endif 805 806 HCI_INIT_SET_EVENT_MASK, 807 HCI_INIT_W4_SET_EVENT_MASK, 808 HCI_INIT_SET_EVENT_MASK_2, 809 HCI_INIT_W4_SET_EVENT_MASK_2, 810 811 #ifdef ENABLE_CLASSIC 812 HCI_INIT_WRITE_SIMPLE_PAIRING_MODE, 813 HCI_INIT_W4_WRITE_SIMPLE_PAIRING_MODE, 814 HCI_INIT_WRITE_INQUIRY_MODE, 815 HCI_INIT_W4_WRITE_INQUIRY_MODE, 816 HCI_INIT_WRITE_SECURE_CONNECTIONS_HOST_ENABLE, 817 HCI_INIT_W4_WRITE_SECURE_CONNECTIONS_HOST_ENABLE, 818 HCI_INIT_SET_MIN_ENCRYPTION_KEY_SIZE, 819 HCI_INIT_W4_SET_MIN_ENCRYPTION_KEY_SIZE, 820 821 #ifdef ENABLE_SCO_OVER_HCI 822 // SCO over HCI 823 HCI_INIT_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE, 824 HCI_INIT_W4_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE, 825 HCI_INIT_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING, 826 HCI_INIT_W4_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING, 827 #endif 828 829 #if defined(ENABLE_SCO_OVER_HCI) || defined(ENABLE_SCO_OVER_PCM) 830 // Broadcom SCO Routing and Configuration 831 HCI_INIT_BCM_WRITE_SCO_PCM_INT, 832 HCI_INIT_W4_BCM_WRITE_SCO_PCM_INT, 833 #endif 834 #ifdef ENABLE_SCO_OVER_PCM 835 HCI_INIT_BCM_WRITE_I2SPCM_INTERFACE_PARAM, 836 HCI_INIT_W4_BCM_WRITE_I2SPCM_INTERFACE_PARAM, 837 #endif 838 #endif 839 840 #ifdef ENABLE_BLE 841 HCI_INIT_LE_READ_BUFFER_SIZE, 842 HCI_INIT_W4_LE_READ_BUFFER_SIZE, 843 HCI_INIT_WRITE_LE_HOST_SUPPORTED, 844 HCI_INIT_W4_WRITE_LE_HOST_SUPPORTED, 845 HCI_INIT_LE_SET_EVENT_MASK, 846 HCI_INIT_W4_LE_SET_EVENT_MASK, 847 #endif 848 849 #ifdef ENABLE_LE_DATA_LENGTH_EXTENSION 850 HCI_INIT_LE_READ_MAX_DATA_LENGTH, 851 HCI_INIT_W4_LE_READ_MAX_DATA_LENGTH, 852 HCI_INIT_LE_WRITE_SUGGESTED_DATA_LENGTH, 853 HCI_INIT_W4_LE_WRITE_SUGGESTED_DATA_LENGTH, 854 #endif 855 856 #ifdef ENABLE_LE_CENTRAL 857 HCI_INIT_READ_WHITE_LIST_SIZE, 858 HCI_INIT_W4_READ_WHITE_LIST_SIZE, 859 #endif 860 861 #ifdef ENABLE_LE_PERIPHERAL 862 #ifdef ENABLE_LE_EXTENDED_ADVERTISING 863 HCI_INIT_LE_READ_MAX_ADV_DATA_LEN, 864 HCI_INIT_W4_LE_READ_MAX_ADV_DATA_LEN, 865 #endif 866 #endif 867 #ifdef ENABLE_LE_ISOCHRONOUS_STREAMS 868 HCI_INIT_LE_SET_HOST_FEATURE_CONNECTED_ISO_STREAMS, 869 HCI_INIT_W4_LE_SET_HOST_FEATURE_CONNECTED_ISO_STREAMS, 870 #endif 871 872 HCI_INIT_DONE, 873 874 HCI_FALLING_ASLEEP_DISCONNECT, 875 HCI_FALLING_ASLEEP_W4_WRITE_SCAN_ENABLE, 876 HCI_FALLING_ASLEEP_COMPLETE, 877 878 HCI_INIT_AFTER_SLEEP, 879 880 HCI_HALTING_CLASSIC_STOP, 881 HCI_HALTING_LE_ADV_STOP, 882 HCI_HALTING_LE_SCAN_STOP, 883 HCI_HALTING_DISCONNECT_ALL, 884 HCI_HALTING_W4_CLOSE_TIMER, 885 HCI_HALTING_CLOSE, 886 HCI_HALTING_CLOSE_DISCARDING_CONNECTIONS, 887 888 } hci_substate_t; 889 890 #define GAP_TASK_SET_LOCAL_NAME 0x01 891 #define GAP_TASK_SET_EIR_DATA 0x02 892 #define GAP_TASK_SET_CLASS_OF_DEVICE 0x04 893 #define GAP_TASK_SET_DEFAULT_LINK_POLICY 0x08 894 #define GAP_TASK_WRITE_SCAN_ENABLE 0x10 895 #define GAP_TASK_WRITE_PAGE_SCAN_ACTIVITY 0x20 896 #define GAP_TASK_WRITE_PAGE_SCAN_TYPE 0x40 897 #define GAP_TASK_WRITE_PAGE_TIMEOUT 0x80 898 #define GAP_TASK_WRITE_INQUIRY_SCAN_ACTIVITY 0x100 899 900 enum { 901 // Tasks 902 LE_ADVERTISEMENT_TASKS_SET_ADV_DATA = 1 << 0, 903 LE_ADVERTISEMENT_TASKS_SET_SCAN_DATA = 1 << 1, 904 LE_ADVERTISEMENT_TASKS_SET_PARAMS = 1 << 2, 905 LE_ADVERTISEMENT_TASKS_SET_PERIODIC_PARAMS = 1 << 3, 906 LE_ADVERTISEMENT_TASKS_SET_PERIODIC_DATA = 1 << 4, 907 LE_ADVERTISEMENT_TASKS_REMOVE_SET = 1 << 5, 908 LE_ADVERTISEMENT_TASKS_SET_ADDRESS = 1 << 6, 909 LE_ADVERTISEMENT_TASKS_SET_ADDRESS_SET_0 = 1 << 7, 910 }; 911 912 enum { 913 // State 914 LE_ADVERTISEMENT_STATE_PARAMS_SET = 1 << 0, 915 LE_ADVERTISEMENT_STATE_ACTIVE = 1 << 1, 916 LE_ADVERTISEMENT_STATE_ENABLED = 1 << 2, 917 LE_ADVERTISEMENT_STATE_PERIODIC_ACTIVE = 1 << 3, 918 LE_ADVERTISEMENT_STATE_PERIODIC_ENABLED = 1 << 4, 919 }; 920 921 enum { 922 LE_WHITELIST_ON_CONTROLLER = 1 << 0, 923 LE_WHITELIST_ADD_TO_CONTROLLER = 1 << 1, 924 LE_WHITELIST_REMOVE_FROM_CONTROLLER = 1 << 2, 925 }; 926 927 enum { 928 LE_PERIODIC_ADVERTISER_LIST_ENTRY_ON_CONTROLLER = 1 << 0, 929 LE_PERIODIC_ADVERTISER_LIST_ENTRY_ADD_TO_CONTROLLER = 1 << 1, 930 LE_PERIODIC_ADVERTISER_LIST_ENTRY_REMOVE_FROM_CONTROLLER = 1 << 2, 931 }; 932 933 typedef struct { 934 btstack_linked_item_t item; 935 bd_addr_t address; 936 bd_addr_type_t address_type; 937 uint8_t state; 938 } whitelist_entry_t; 939 940 typedef struct { 941 btstack_linked_item_t item; 942 bd_addr_t address; 943 bd_addr_type_t address_type; 944 uint8_t sid; 945 uint8_t state; 946 } periodic_advertiser_list_entry_t; 947 948 #define MAX_NUM_RESOLVING_LIST_ENTRIES 64 949 typedef enum { 950 LE_RESOLVING_LIST_SEND_ENABLE_ADDRESS_RESOLUTION, 951 LE_RESOLVING_LIST_READ_SIZE, 952 LE_RESOLVING_LIST_SEND_CLEAR, 953 LE_RESOLVING_LIST_UPDATES_ENTRIES, 954 LE_RESOLVING_LIST_DONE 955 } le_resolving_list_state_t; 956 957 /** 958 * main data structure 959 */ 960 typedef struct { 961 // transport component with configuration 962 const hci_transport_t * hci_transport; 963 const void * config; 964 965 // chipset driver 966 const btstack_chipset_t * chipset; 967 968 // chipset driver requires pre-init 969 bool chipset_pre_init; 970 971 // hardware power controller 972 const btstack_control_t * control; 973 974 #ifdef ENABLE_CLASSIC 975 /* link key db */ 976 const btstack_link_key_db_t * link_key_db; 977 #endif 978 979 // list of existing baseband connections 980 btstack_linked_list_t connections; 981 982 /* callback to L2CAP layer */ 983 btstack_packet_handler_t acl_packet_handler; 984 985 /* callback for SCO data */ 986 btstack_packet_handler_t sco_packet_handler; 987 988 /* callbacks for events */ 989 btstack_linked_list_t event_handlers; 990 991 #ifdef ENABLE_CLASSIC 992 /* callback for reject classic connection */ 993 int (*gap_classic_accept_callback)(bd_addr_t addr, hci_link_type_t link_type); 994 #endif 995 996 // hardware error callback 997 void (*hardware_error_callback)(uint8_t error); 998 999 #ifdef ENABLE_LE_ISOCHRONOUS_STREAMS 1000 /* callback for ISO data */ 1001 btstack_packet_handler_t iso_packet_handler; 1002 1003 /* fragmentation for ISO data */ 1004 uint16_t iso_fragmentation_pos; 1005 uint16_t iso_fragmentation_total_size; 1006 bool iso_fragmentation_tx_active; 1007 1008 uint8_t iso_packets_to_queue; 1009 // group id and type of active operation 1010 hci_iso_type_t iso_active_operation_type; 1011 uint8_t iso_active_operation_group_id; 1012 1013 // list of iso streams 1014 btstack_linked_list_t iso_streams; 1015 1016 // list of BIGs and BIG Syncs 1017 btstack_linked_list_t le_audio_bigs; 1018 btstack_linked_list_t le_audio_big_syncs; 1019 1020 // list of CIGs 1021 btstack_linked_list_t le_audio_cigs; 1022 #endif 1023 1024 // basic configuration 1025 const char * local_name; 1026 const uint8_t * eir_data; 1027 uint32_t class_of_device; 1028 bd_addr_t local_bd_addr; 1029 uint16_t default_link_policy_settings; 1030 uint8_t allow_role_switch; 1031 uint8_t ssp_enable; 1032 uint8_t ssp_io_capability; 1033 uint8_t ssp_authentication_requirement; 1034 uint8_t ssp_auto_accept; 1035 bool secure_connections_enable; 1036 bool secure_connections_active; 1037 inquiry_mode_t inquiry_mode; 1038 1039 #ifdef ENABLE_CLASSIC 1040 /* GAP tasks, see GAP_TASK_* */ 1041 uint16_t gap_tasks_classic; 1042 1043 /* write page scan activity */ 1044 uint16_t new_page_scan_interval; 1045 uint16_t new_page_scan_window; 1046 1047 /* write page scan type */ 1048 uint8_t new_page_scan_type; 1049 1050 /* write page timeout */ 1051 uint16_t page_timeout; 1052 1053 // Errata-11838 mandates 7 bytes for GAP Security Level 1-3, we use 16 as default 1054 uint8_t gap_required_encyrption_key_size; 1055 1056 uint16_t link_supervision_timeout; 1057 uint16_t automatic_flush_timeout; 1058 1059 gap_security_level_t gap_security_level; 1060 gap_security_level_t gap_minimal_service_security_level; 1061 gap_security_mode_t gap_security_mode; 1062 1063 uint32_t inquiry_lap; // GAP_IAC_GENERAL_INQUIRY or GAP_IAC_LIMITED_INQUIRY 1064 uint16_t inquiry_scan_interval; 1065 uint16_t inquiry_scan_window; 1066 1067 bool gap_secure_connections_only_mode; 1068 #endif 1069 1070 // single buffer for HCI packet assembly + additional prebuffer for H4 drivers 1071 uint8_t * hci_packet_buffer; 1072 uint8_t hci_packet_buffer_data[HCI_OUTGOING_PRE_BUFFER_SIZE + HCI_OUTGOING_PACKET_BUFFER_SIZE]; 1073 bool hci_packet_buffer_reserved; 1074 uint16_t acl_fragmentation_pos; 1075 uint16_t acl_fragmentation_total_size; 1076 uint8_t acl_fragmentation_tx_active; 1077 1078 /* host to controller flow control */ 1079 uint8_t num_cmd_packets; 1080 uint8_t acl_packets_total_num; 1081 uint16_t acl_data_packet_length; 1082 uint8_t sco_packets_total_num; 1083 uint8_t sco_data_packet_length; 1084 uint8_t synchronous_flow_control_enabled; 1085 uint8_t le_acl_packets_total_num; 1086 uint16_t le_data_packets_length; 1087 uint8_t le_iso_packets_total_num; 1088 uint16_t le_iso_packets_length; 1089 uint8_t sco_waiting_for_can_send_now; 1090 bool sco_can_send_now; 1091 1092 /* local supported features */ 1093 uint8_t local_supported_features[8]; 1094 1095 /* local supported commands summary - complete info is 64 bytes */ 1096 uint32_t local_supported_commands; 1097 1098 /* bluetooth device information from hci read local version information */ 1099 // uint16_t hci_version; 1100 // uint16_t hci_revision; 1101 // uint16_t lmp_version; 1102 uint16_t manufacturer; 1103 // uint16_t lmp_subversion; 1104 1105 // usable ACL packet types given HCI_ACL_BUFFER_SIZE and local supported features 1106 uint16_t usable_packet_types_acl; 1107 1108 // usable SCO packet types given local supported features 1109 uint16_t usable_packet_types_sco; 1110 1111 /* hci state machine */ 1112 HCI_STATE state; 1113 hci_substate_t substate; 1114 btstack_timer_source_t timeout; 1115 btstack_chipset_result_t chipset_result; 1116 1117 uint16_t last_cmd_opcode; 1118 1119 uint8_t cmds_ready; 1120 1121 /* buffer for scan enable cmd - 0xff no change */ 1122 uint8_t new_scan_enable_value; 1123 1124 uint8_t discoverable; 1125 uint8_t connectable; 1126 uint8_t bondable; 1127 1128 uint8_t inquiry_state; // see hci.c for state defines 1129 uint16_t inquiry_max_period_length; 1130 uint16_t inquiry_min_period_length; 1131 1132 bd_addr_t remote_name_addr; 1133 uint16_t remote_name_clock_offset; 1134 uint8_t remote_name_page_scan_repetition_mode; 1135 uint8_t remote_name_state; // see hci.c for state defines 1136 1137 bd_addr_t gap_pairing_addr; 1138 uint8_t gap_pairing_state; // see hci.c for state defines 1139 uint8_t gap_pairing_pin_len; 1140 union { 1141 const uint8_t * gap_pairing_pin; 1142 uint32_t gap_pairing_passkey; 1143 } gap_pairing_input; 1144 1145 uint16_t sco_voice_setting; 1146 uint16_t sco_voice_setting_active; 1147 1148 uint8_t loopback_mode; 1149 1150 // buffer for single connection decline 1151 uint8_t decline_reason; 1152 bd_addr_t decline_addr; 1153 1154 #ifdef ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL 1155 uint8_t host_completed_packets; 1156 #endif 1157 1158 #ifdef ENABLE_BLE 1159 uint8_t le_own_addr_type; 1160 bd_addr_t le_random_address; 1161 uint8_t le_random_address_set; 1162 1163 // LE Whitelist Management 1164 uint8_t le_whitelist_capacity; 1165 btstack_linked_list_t le_whitelist; 1166 1167 // Connection parameters 1168 uint16_t le_connection_scan_interval; 1169 uint16_t le_connection_scan_window; 1170 uint16_t le_connection_interval_min; 1171 uint16_t le_connection_interval_max; 1172 uint16_t le_connection_latency; 1173 uint16_t le_supervision_timeout; 1174 uint16_t le_minimum_ce_length; 1175 uint16_t le_maximum_ce_length; 1176 #endif 1177 1178 #ifdef ENABLE_LE_CENTRAL 1179 bool le_scanning_enabled; 1180 bool le_scanning_active; 1181 1182 le_connecting_state_t le_connecting_state; 1183 le_connecting_state_t le_connecting_request; 1184 1185 bool le_scanning_param_update; 1186 uint8_t le_scan_filter_duplicates; 1187 uint8_t le_scan_type; 1188 uint8_t le_scan_filter_policy; 1189 uint8_t le_scan_phys; 1190 uint16_t le_scan_interval; 1191 uint16_t le_scan_window; 1192 1193 uint8_t le_connection_own_addr_type; 1194 uint8_t le_connection_phys; 1195 bd_addr_t le_connection_own_address; 1196 1197 #ifdef ENABLE_LE_EXTENDED_ADVERTISING 1198 btstack_linked_list_t le_periodic_advertiser_list; 1199 uint16_t le_periodic_terminate_sync_handle; 1200 1201 // Periodic Advertising Sync parameters 1202 uint8_t le_periodic_sync_options; 1203 uint8_t le_periodic_sync_advertising_sid; 1204 bd_addr_type_t le_periodic_sync_advertiser_address_type; 1205 bd_addr_t le_periodic_sync_advertiser_address; 1206 uint16_t le_periodic_sync_skip; 1207 uint16_t le_periodic_sync_timeout; 1208 uint8_t le_periodic_sync_cte_type; 1209 le_connecting_state_t le_periodic_sync_state; 1210 le_connecting_state_t le_periodic_sync_request; 1211 1212 // Periodic Advertising Sync Transfer (PAST) 1213 bool le_past_set_default_params; 1214 uint8_t le_past_mode; 1215 uint16_t le_past_skip; 1216 uint16_t le_past_sync_timeout; 1217 uint8_t le_past_cte_type; 1218 #endif 1219 #endif 1220 1221 le_connection_parameter_range_t le_connection_parameter_range; 1222 1223 // TODO: move LE_ADVERTISEMENT_TASKS_SET_ADDRESS flag which is used for both roles into 1224 // some generic gap_le variable 1225 uint8_t le_advertisements_todo; 1226 1227 #ifdef ENABLE_LE_PERIPHERAL 1228 uint8_t * le_advertisements_data; 1229 uint8_t le_advertisements_data_len; 1230 1231 uint8_t * le_scan_response_data; 1232 uint8_t le_scan_response_data_len; 1233 1234 uint16_t le_advertisements_interval_min; 1235 uint16_t le_advertisements_interval_max; 1236 uint8_t le_advertisements_type; 1237 uint8_t le_advertisements_direct_address_type; 1238 uint8_t le_advertisements_channel_map; 1239 uint8_t le_advertisements_filter_policy; 1240 bd_addr_t le_advertisements_direct_address; 1241 uint8_t le_advertisements_own_addr_type; 1242 bd_addr_t le_advertisements_own_address; 1243 1244 uint8_t le_advertisements_state; 1245 1246 bool le_advertisements_enabled_for_current_roles; 1247 uint8_t le_max_number_peripheral_connections; 1248 1249 #ifdef ENABLE_LE_EXTENDED_ADVERTISING 1250 btstack_linked_list_t le_advertising_sets; 1251 uint16_t le_maximum_advertising_data_length; 1252 uint8_t le_advertising_set_in_current_command; 1253 #endif 1254 #endif 1255 1256 #ifdef ENABLE_LE_DATA_LENGTH_EXTENSION 1257 // LE Data Length 1258 uint16_t le_supported_max_tx_octets; 1259 uint16_t le_supported_max_tx_time; 1260 #endif 1261 1262 // custom BD ADDR 1263 bd_addr_t custom_bd_addr; 1264 uint8_t custom_bd_addr_set; 1265 1266 #ifdef ENABLE_CLASSIC 1267 uint8_t master_slave_policy; 1268 #endif 1269 1270 // address and address_type of active create connection command (ACL, SCO, LE) 1271 bd_addr_t outgoing_addr; 1272 bd_addr_type_t outgoing_addr_type; 1273 1274 // LE Resolving List 1275 #ifdef ENABLE_LE_PRIVACY_ADDRESS_RESOLUTION 1276 le_privacy_mode_t le_privacy_mode; 1277 le_resolving_list_state_t le_resolving_list_state; 1278 uint16_t le_resolving_list_size; 1279 uint8_t le_resolving_list_add_entries[(MAX_NUM_RESOLVING_LIST_ENTRIES + 7) / 8]; 1280 uint8_t le_resolving_list_set_privacy_mode[(MAX_NUM_RESOLVING_LIST_ENTRIES + 7) / 8]; 1281 uint8_t le_resolving_list_remove_entries[(MAX_NUM_RESOLVING_LIST_ENTRIES + 7) / 8]; 1282 #endif 1283 1284 #ifdef ENABLE_CLASSIC_PAIRING_OOB 1285 bool classic_read_local_oob_data; 1286 hci_con_handle_t classic_oob_con_handle; 1287 #endif 1288 1289 #ifdef HAVE_SCO_TRANSPORT 1290 const btstack_sco_transport_t * sco_transport; 1291 #endif 1292 } hci_stack_t; 1293 1294 1295 /* API_START */ 1296 1297 1298 // HCI init and configuration 1299 1300 1301 /** 1302 * @brief Set up HCI. Needs to be called before any other function. 1303 */ 1304 void hci_init(const hci_transport_t *transport, const void *config); 1305 1306 /** 1307 * @brief Configure Bluetooth chipset driver. Has to be called before power on, or right after receiving the local version information. 1308 */ 1309 void hci_set_chipset(const btstack_chipset_t *chipset_driver); 1310 1311 /** 1312 * @brief Enable custom init for chipset driver to send HCI commands before HCI Reset 1313 */ 1314 void hci_enable_custom_pre_init(void); 1315 1316 /** 1317 * @brief Configure Bluetooth hardware control. Has to be called before power on. 1318 * @[aram hardware_control implementation 1319 */ 1320 void hci_set_control(const btstack_control_t *hardware_control); 1321 1322 #ifdef HAVE_SCO_TRANSPORT 1323 /** 1324 * @brief Set SCO Transport implementation for SCO over PCM mode 1325 * @param sco_transport that sends SCO over I2S or PCM interface 1326 */ 1327 void hci_set_sco_transport(const btstack_sco_transport_t *sco_transport); 1328 #endif 1329 1330 #ifdef ENABLE_CLASSIC 1331 /** 1332 * @brief Configure Bluetooth hardware control. Has to be called before power on. 1333 */ 1334 void hci_set_link_key_db(btstack_link_key_db_t const * link_key_db); 1335 #endif 1336 1337 /** 1338 * @brief Set callback for Bluetooth Hardware Error 1339 */ 1340 void hci_set_hardware_error_callback(void (*fn)(uint8_t error)); 1341 1342 /** 1343 * @brief Set Public BD ADDR - passed on to Bluetooth chipset during init if supported in bt_control_h 1344 */ 1345 void hci_set_bd_addr(bd_addr_t addr); 1346 1347 /** 1348 * @brief Configure Voice Setting for use with SCO data in HSP/HFP 1349 */ 1350 void hci_set_sco_voice_setting(uint16_t voice_setting); 1351 1352 /** 1353 * @brief Get SCO Voice Setting 1354 * @return current voice setting 1355 */ 1356 uint16_t hci_get_sco_voice_setting(void); 1357 1358 /** 1359 * @brief Set number of ISO packets to buffer for BIS/CIS 1360 * @param num_packets (default = 1) 1361 */ 1362 void hci_set_num_iso_packets_to_queue(uint8_t num_packets); 1363 1364 /** 1365 * @brief Set inquiry mode: standard, with RSSI, with RSSI + Extended Inquiry Results. Has to be called before power on. 1366 * @param inquriy_mode see bluetooth_defines.h 1367 */ 1368 void hci_set_inquiry_mode(inquiry_mode_t inquriy_mode); 1369 1370 /** 1371 * @brief Requests the change of BTstack power mode. 1372 * @param power_mode 1373 * @return 0 if success, otherwise error 1374 */ 1375 int hci_power_control(HCI_POWER_MODE power_mode); 1376 1377 /** 1378 * @brief Shutdown HCI 1379 */ 1380 void hci_close(void); 1381 1382 1383 // Callback registration 1384 1385 1386 /** 1387 * @brief Add event packet handler. 1388 */ 1389 void hci_add_event_handler(btstack_packet_callback_registration_t * callback_handler); 1390 1391 /** 1392 * @brief Remove event packet handler. 1393 */ 1394 void hci_remove_event_handler(btstack_packet_callback_registration_t * callback_handler); 1395 1396 /** 1397 * @brief Registers a packet handler for ACL data. Used by L2CAP 1398 */ 1399 void hci_register_acl_packet_handler(btstack_packet_handler_t handler); 1400 1401 /** 1402 * @brief Registers a packet handler for SCO data. Used for HSP and HFP profiles. 1403 */ 1404 void hci_register_sco_packet_handler(btstack_packet_handler_t handler); 1405 1406 /** 1407 * @brief Registers a packet handler for ISO data. Used for LE Audio profiles 1408 */ 1409 void hci_register_iso_packet_handler(btstack_packet_handler_t handler); 1410 1411 // Sending HCI Commands 1412 1413 /** 1414 * @brief Check if CMD packet can be sent to controller 1415 * @return true if command can be sent 1416 */ 1417 bool hci_can_send_command_packet_now(void); 1418 1419 /** 1420 * @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. 1421 * @return status 1422 */ 1423 uint8_t hci_send_cmd(const hci_cmd_t * cmd, ...); 1424 1425 1426 // Sending SCO Packets 1427 1428 /** @brief Get SCO packet length for current SCO Voice setting 1429 * @note Using SCO packets of the exact length is required for USB transfer 1430 * @return Length of SCO packets in bytes (not audio frames) incl. 3 byte header 1431 */ 1432 uint16_t hci_get_sco_packet_length(void); 1433 1434 /** 1435 * @brief Request emission of HCI_EVENT_SCO_CAN_SEND_NOW as soon as possible 1436 * @note HCI_EVENT_SCO_CAN_SEND_NOW might be emitted during call to this function 1437 * so packet handler should be ready to handle it 1438 */ 1439 void hci_request_sco_can_send_now_event(void); 1440 1441 /** 1442 * @brief Check HCI packet buffer and if SCO packet can be sent to controller 1443 * @return true if sco packet can be sent 1444 */ 1445 bool hci_can_send_sco_packet_now(void); 1446 1447 /** 1448 * @brief Check if SCO packet can be sent to controller 1449 * @return true if sco packet can be sent 1450 */ 1451 bool hci_can_send_prepared_sco_packet_now(void); 1452 1453 /** 1454 * @brief Send SCO packet prepared in HCI packet buffer 1455 */ 1456 uint8_t hci_send_sco_packet_buffer(int size); 1457 1458 /** 1459 * @brief Request emission of HCI_EVENT_BIS_CAN_SEND_NOW for all BIS as soon as possible 1460 * @param big_handle 1461 * @note HCI_EVENT_ISO_CAN_SEND_NOW might be emitted during call to this function 1462 * so packet handler should be ready to handle it 1463 */ 1464 uint8_t hci_request_bis_can_send_now_events(uint8_t big_handle); 1465 1466 /** 1467 * @brief Request emission of HCI_EVENT_CIS_CAN_SEND_NOW for CIS as soon as possible 1468 * @param cis_con_handle 1469 * @note HCI_EVENT_CIS_CAN_SEND_NOW might be emitted during call to this function 1470 * so packet handler should be ready to handle it 1471 */ 1472 uint8_t hci_request_cis_can_send_now_events(hci_con_handle_t cis_con_handle); 1473 1474 /** 1475 * @brief Send ISO packet prepared in HCI packet buffer 1476 */ 1477 uint8_t hci_send_iso_packet_buffer(uint16_t size); 1478 1479 /** 1480 * Reserves outgoing packet buffer. 1481 * @return true on success 1482 */ 1483 bool hci_reserve_packet_buffer(void); 1484 1485 /** 1486 * Get pointer for outgoing packet buffer 1487 */ 1488 uint8_t* hci_get_outgoing_packet_buffer(void); 1489 1490 /** 1491 * Release outgoing packet buffer\ 1492 * @note only called instead of hci_send_preparared 1493 */ 1494 void hci_release_packet_buffer(void); 1495 1496 /** 1497 * @brief Sets the master/slave policy 1498 * @param policy (0: attempt to become master, 1: let connecting device decide) 1499 */ 1500 void hci_set_master_slave_policy(uint8_t policy); 1501 1502 /* API_END */ 1503 1504 1505 /** 1506 * va_list version of hci_send_cmd, call hci_send_cmd_packet 1507 * @return status 1508 */ 1509 uint8_t hci_send_cmd_va_arg(const hci_cmd_t * cmd, va_list argptr); 1510 1511 /** 1512 * Get connection iterator. Only used by l2cap.c and sm.c 1513 */ 1514 void hci_connections_get_iterator(btstack_linked_list_iterator_t *it); 1515 1516 /** 1517 * Get internal hci_connection_t for given handle. Used by L2CAP, SM, daemon 1518 */ 1519 hci_connection_t * hci_connection_for_handle(hci_con_handle_t con_handle); 1520 1521 /** 1522 * Get internal hci_connection_t for given Bluetooth addres. Called by L2CAP 1523 */ 1524 hci_connection_t * hci_connection_for_bd_addr_and_type(const bd_addr_t addr, bd_addr_type_t addr_type); 1525 1526 /** 1527 * Check if outgoing packet buffer is reserved. Used for internal checks in l2cap.c 1528 * @return true if packet buffer is reserved 1529 */ 1530 bool hci_is_packet_buffer_reserved(void); 1531 1532 /** 1533 * Check hci packet buffer is free and a classic acl packet can be sent to controller 1534 * @return true if ACL Classic packet can be sent now 1535 */ 1536 bool hci_can_send_acl_classic_packet_now(void); 1537 1538 /** 1539 * Check hci packet buffer is free and an LE acl packet can be sent to controller 1540 * @return true if ACL LE packet can be sent now 1541 */ 1542 bool hci_can_send_acl_le_packet_now(void); 1543 1544 /** 1545 * Check hci packet buffer is free and an acl packet for the given handle can be sent to controller 1546 * @return true if ACL packet for con_handle can be sent now 1547 */ 1548 bool hci_can_send_acl_packet_now(hci_con_handle_t con_handle); 1549 1550 /** 1551 * Check if acl packet for the given handle can be sent to controller 1552 * @return true if ACL packet for con_handle can be sent now 1553 */ 1554 bool hci_can_send_prepared_acl_packet_now(hci_con_handle_t con_handle); 1555 1556 /** 1557 * Send acl packet prepared in hci packet buffer 1558 * @return status 1559 */ 1560 uint8_t hci_send_acl_packet_buffer(int size); 1561 1562 /** 1563 * Check if authentication is active. It delays automatic disconnect while no L2CAP connection 1564 * Called by l2cap. 1565 */ 1566 bool hci_authentication_active_for_handle(hci_con_handle_t handle); 1567 1568 /** 1569 * Get maximal ACL Classic data packet length based on used buffer size. Called by L2CAP 1570 */ 1571 uint16_t hci_max_acl_data_packet_length(void); 1572 1573 /** 1574 * Get supported ACL packet types. Already flipped for create connection. Called by L2CAP 1575 */ 1576 uint16_t hci_usable_acl_packet_types(void); 1577 1578 /** 1579 * Get supported SCO packet types. Not flipped. Called by HFP 1580 */ 1581 uint16_t hci_usable_sco_packet_types(void); 1582 1583 /** 1584 * Check if ACL packets marked as non flushable can be sent. Called by L2CAP 1585 */ 1586 bool hci_non_flushable_packet_boundary_flag_supported(void); 1587 1588 /** 1589 * Return current automatic flush timeout setting 1590 */ 1591 uint16_t hci_automatic_flush_timeout(void); 1592 1593 /** 1594 * Check if remote supported features query has completed 1595 */ 1596 bool hci_remote_features_available(hci_con_handle_t con_handle); 1597 1598 /** 1599 * Trigger remote supported features query 1600 */ 1601 void hci_remote_features_query(hci_con_handle_t con_handle); 1602 1603 /** 1604 * Check if extended SCO Link is supported 1605 */ 1606 bool hci_extended_sco_link_supported(void); 1607 1608 /** 1609 * Check if SSP is supported on both sides. Called by L2CAP 1610 */ 1611 bool gap_ssp_supported_on_both_sides(hci_con_handle_t handle); 1612 1613 /** 1614 * Disconn because of security block. Called by L2CAP 1615 */ 1616 void hci_disconnect_security_block(hci_con_handle_t con_handle); 1617 1618 /** 1619 * Query if remote side supports eSCO 1620 * @param con_handle 1621 */ 1622 bool hci_remote_esco_supported(hci_con_handle_t con_handle); 1623 1624 /** 1625 * Query remote supported SCO packets based on remote supported features 1626 * @param con_handle 1627 */ 1628 uint16_t hci_remote_sco_packet_types(hci_con_handle_t con_handle); 1629 1630 /** 1631 * Emit current HCI state. Called by daemon 1632 */ 1633 void hci_emit_state(void); 1634 1635 /** 1636 * Send complete CMD packet. Called by daemon and hci_send_cmd_va_arg 1637 * @return status 1638 */ 1639 uint8_t hci_send_cmd_packet(uint8_t *packet, int size); 1640 1641 /** 1642 * Disconnect all HCI connections. Called by daemon 1643 */ 1644 void hci_disconnect_all(void); 1645 1646 /** 1647 * Get number of free acl slots for packets of given handle. Called by daemon 1648 */ 1649 int hci_number_free_acl_slots_for_handle(hci_con_handle_t con_handle); 1650 1651 /** 1652 * @brief Set Advertisement Parameters 1653 * @param adv_int_min 1654 * @param adv_int_max 1655 * @param adv_type 1656 * @param direct_address_type 1657 * @param direct_address 1658 * @param channel_map 1659 * @param filter_policy 1660 * 1661 * @note internal use. use gap_advertisements_set_params from gap.h instead. 1662 */ 1663 void hci_le_advertisements_set_params(uint16_t adv_int_min, uint16_t adv_int_max, uint8_t adv_type, 1664 uint8_t direct_address_typ, bd_addr_t direct_address, uint8_t channel_map, uint8_t filter_policy); 1665 1666 /** 1667 * 1668 * @note internal use. use gap_random_address_set_mode from gap.h instead. 1669 */ 1670 void hci_le_set_own_address_type(uint8_t own_address_type); 1671 1672 /** 1673 * @naote internal use. use gap_random_address_set from gap.h instead 1674 */ 1675 void hci_le_random_address_set(const bd_addr_t random_address); 1676 1677 /** 1678 * @note internal use by sm 1679 */ 1680 void hci_load_le_device_db_entry_into_resolving_list(uint16_t le_device_db_index); 1681 1682 /** 1683 * @note internal use by sm 1684 */ 1685 void hci_remove_le_device_db_entry_from_resolving_list(uint16_t le_device_db_index); 1686 1687 /** 1688 * @note internal use 1689 */ 1690 uint16_t hci_number_free_acl_slots_for_connection_type(bd_addr_type_t address_type); 1691 1692 /** 1693 * @brief Clear Periodic Advertiser List 1694 * @return status 1695 */ 1696 uint8_t gap_periodic_advertiser_list_clear(void); 1697 1698 /** 1699 * @brief Add entry to Periodic Advertiser List 1700 * @param address_type 1701 * @param address 1702 * @param advertising_sid 1703 * @return 1704 */ 1705 uint8_t gap_periodic_advertiser_list_add(bd_addr_type_t address_type, const bd_addr_t address, uint8_t advertising_sid); 1706 1707 /** 1708 * Remove entry from Periodic Advertising List 1709 * @param address_type 1710 * @param address 1711 * @param advertising_sid 1712 * @return 1713 */ 1714 uint8_t gap_periodic_advertiser_list_remove(bd_addr_type_t address_type, const bd_addr_t address, uint8_t advertising_sid); 1715 1716 /** 1717 * @brief Synchronize with a periodic advertising train from an advertiser and begin receiving periodic advertising packets. 1718 * @param options 1719 * @param advertising_sid 1720 * @param advertiser_address_type 1721 * @param advertiser_address 1722 * @param skip 1723 * @param sync_timeout 1724 * @param sync_cte_type 1725 * @return 1726 */ 1727 uint8_t gap_periodic_advertising_create_sync(uint8_t options, uint8_t advertising_sid, bd_addr_type_t advertiser_address_type, 1728 bd_addr_t advertiser_address, uint16_t skip, uint16_t sync_timeout, uint8_t sync_cte_type); 1729 1730 /** 1731 * @brief Cancel sync periodic advertising train while it is pending. 1732 * @return status 1733 */ 1734 uint8_t gap_periodic_advertising_create_sync_cancel(void); 1735 1736 /** 1737 * @biref Stop reception of the periodic advertising train 1738 * @param sync_handle 1739 * @return status 1740 */ 1741 uint8_t gap_periodic_advertising_terminate_sync(uint16_t sync_handle); 1742 1743 /** 1744 * @brief Get Controller Manufacturer 1745 * @returns company_id - see bluetooth_company_id.h 1746 */ 1747 uint16_t hci_get_manufacturer(void); 1748 1749 /** 1750 * Get Classic Allow Role Switch param 1751 */ 1752 uint8_t hci_get_allow_role_switch(void); 1753 1754 /** 1755 * Get state 1756 */ 1757 HCI_STATE hci_get_state(void); 1758 1759 /** 1760 * @brief De-Init HCI 1761 */ 1762 void hci_deinit(void); 1763 1764 // defer disconnect on dedicated bonding complete, used internally for CTKD 1765 uint8_t hci_dedicated_bonding_defer_disconnect(hci_con_handle_t con_handle, bool defer); 1766 1767 // Only for PTS testing 1768 1769 // Disable automatic L2CAP disconnect if no L2CAP connection is established 1770 void hci_disable_l2cap_timeout_check(void); 1771 1772 // setup test connections, used for fuzzing 1773 void hci_setup_test_connections_fuzz(void); 1774 1775 // free all connections, used for fuzzing 1776 void hci_free_connections_fuzz(void); 1777 1778 // simulate stack bootup 1779 void hci_simulate_working_fuzz(void); 1780 1781 1782 #if defined __cplusplus 1783 } 1784 #endif 1785 1786 #endif // HCI_H 1787