1 /****************************************************************************** 2 * 3 * Copyright (C) 2008-2012 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 /****************************************************************************** 20 * 21 * This file contains functions for BLE GAP. 22 * 23 ******************************************************************************/ 24 25 #include <string.h> 26 #include <stdio.h> 27 #include <stddef.h> 28 29 #include "bt_types.h" 30 #include "btu.h" 31 #include "btm_int.h" 32 #include "hcimsgs.h" 33 #if (GAP_INCLUDED == TRUE) 34 #include "gap_api.h" 35 #endif 36 37 #if (BLE_INCLUDED == TRUE) 38 #define BTM_BLE_NAME_SHORT 0x01 39 #define BTM_BLE_NAME_CMPL 0x02 40 41 #define BTM_BLE_FILTER_TARGET_UNKNOWN 0xff 42 #define BTM_BLE_POLICY_UNKNOWN 0xff 43 44 #define BLE_RESOLVE_ADDR_MSB 0x40 /* most significant bit, bit7, bit6 is 01 to be resolvable random */ 45 #define BLE_RESOLVE_ADDR_MASK 0xc0 /* bit 6, and bit7 */ 46 #define BTM_BLE_IS_RESOLVE_BDA(x) ((x[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB) 47 48 #define BTM_EXT_BLE_RMT_NAME_TIMEOUT 30 49 static tBLE_BD_ADDR le_bda_any ={BLE_ADDR_PUBLIC, {0x00,0x00,0x00,0x00,0x00,0x00}}; 50 51 52 #define BTM_BLE_VALID_CONN_DIRECT(x) (memcmp(&le_bda_any, x, sizeof(tBLE_BD_ADDR)) != 0) 53 54 /******************************************************************************* 55 ** Local functions 56 *******************************************************************************/ 57 static void btm_ble_update_adv_flag(UINT8 flag); 58 static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt_type, UINT8 *p); 59 static UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst, tBTM_BLE_ADV_DATA *p_data); 60 61 62 63 64 65 66 67 68 /******************************************************************************* 69 ** 70 ** Function BTM_BleReset 71 ** 72 ** Description This function is called to reset ULP controller. 73 ** 74 ** Parameters None. 75 ** 76 ** Returns void 77 ** 78 *******************************************************************************/ 79 void BTM_BleReset(void) 80 { 81 btsnd_hcic_ble_reset(); 82 } 83 84 /******************************************************************************* 85 ** 86 ** Function BTM_BleObserve 87 ** 88 ** Description This procedure keep the device listening for advertising 89 ** events from a broadcast device. 90 ** 91 ** Parameters start: start or stop observe. 92 ** white_list: use white list in observer mode or not. 93 ** 94 ** Returns void 95 ** 96 *******************************************************************************/ 97 tBTM_STATUS BTM_BleObserve(BOOLEAN start, UINT8 duration, 98 tBTM_INQ_RESULTS_CB *p_results_cb, tBTM_CMPL_CB *p_cmpl_cb) 99 { 100 tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var; 101 tBTM_STATUS status = BTM_NO_RESOURCES; 102 103 BTM_TRACE_EVENT0 ("BTM_BleObserve "); 104 105 if (start) 106 { 107 if (p_inq->proc_mode != BTM_BLE_INQUIRY_NONE) 108 return BTM_BUSY; 109 110 btm_cb.btm_inq_vars.p_inq_results_cb = p_results_cb; 111 btm_cb.btm_inq_vars.p_inq_cmpl_cb = p_cmpl_cb; 112 113 /* allow config scanning type */ 114 if (btsnd_hcic_ble_set_scan_params ((UINT8)((p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE) ? BTM_BLE_SCAN_MODE_ACTI: p_inq->scan_type), 115 (UINT16)(!p_inq->scan_interval ? BTM_BLE_GAP_DISC_SCAN_INT : p_inq->scan_interval), 116 (UINT16)(!p_inq->scan_window ? BTM_BLE_GAP_DISC_SCAN_WIN : p_inq->scan_window), 117 BLE_ADDR_PUBLIC, 118 BTM_BLE_DEFAULT_SFP)) /* assume observe always not using white list */ 119 { 120 /* start scan, disable duplicate filtering */ 121 if (btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_ENABLE, BTM_BLE_DUPLICATE_DISABLE)) 122 { 123 status = BTM_SUCCESS; 124 p_inq->proc_mode = BTM_BLE_OBSERVE; 125 btm_cb.btm_inq_vars.inq_active = TRUE; 126 127 if (duration != 0) 128 { 129 /* start inquiry timer */ 130 btu_start_timer (&p_inq->inq_timer_ent, BTU_TTYPE_BLE_INQUIRY, duration); 131 } 132 } 133 } 134 } 135 else if (p_inq->proc_mode == BTM_BLE_OBSERVE) 136 { 137 btm_ble_stop_scan(); 138 } 139 140 return status; 141 } 142 143 /******************************************************************************* 144 ** 145 ** Function BTM_BleBroadcast 146 ** 147 ** Description This function is to start or stop broadcasting. 148 ** 149 ** Parameters start: start or stop broadcasting. 150 ** 151 ** Returns status. 152 ** 153 *******************************************************************************/ 154 tBTM_STATUS BTM_BleBroadcast(BOOLEAN start) 155 { 156 tBTM_STATUS status = BTM_NO_RESOURCES; 157 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 158 UINT8 evt_type = p_cb->scan_rsp ? BTM_BLE_DISCOVER_EVT: BTM_BLE_NON_CONNECT_EVT; 159 160 #ifdef BTM_BLE_PC_ADV_TEST_MODE 161 if (BTM_BLE_PC_ADV_TEST_MODE) 162 { 163 evt_type = p_cb->scan_rsp ? BTM_BLE_CONNECT_EVT: BTM_BLE_NON_CONNECT_EVT; 164 } 165 #endif 166 167 if (start && p_cb->adv_mode == BTM_BLE_ADV_DISABLE) 168 { 169 /* update adv params */ 170 if (!btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min : BTM_BLE_GAP_ADV_INT), 171 (UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max : BTM_BLE_GAP_ADV_INT), 172 evt_type, 173 p_cb->own_addr_type, 174 p_cb->direct_bda.type, p_cb->direct_bda.bda, 175 p_cb->adv_chnl_map, 176 p_cb->afp)) 177 178 status = BTM_NO_RESOURCES; 179 else 180 p_cb->evt_type = evt_type; 181 182 if (btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_ENABLE)) 183 { 184 p_cb->adv_mode = BTM_BLE_ADV_ENABLE; 185 186 status = BTM_SUCCESS; 187 } 188 } 189 else if (!start && p_cb->adv_mode == BTM_BLE_ADV_ENABLE) 190 { 191 if (btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE)) 192 { 193 p_cb->adv_mode = BTM_BLE_ADV_DISABLE; 194 195 status = BTM_SUCCESS; 196 } 197 } 198 else 199 { 200 status = BTM_WRONG_MODE; 201 BTM_TRACE_ERROR2("Can not %s Broadcast, device %s in Broadcast mode", 202 (start ? "Start" : "Stop"), (start ? "alerady" :"not")); 203 } 204 205 return status; 206 } 207 208 209 210 211 212 213 214 /******************************************************************************* 215 ** 216 ** Function BTM_RegisterScanReqEvt 217 ** 218 ** Description This function is called to register a scan request callback 219 ** on the advertiser. 220 ** 221 ** Parameters p_scan_req_cback: scan request callback. If NULL, remove the 222 ** registration. 223 ** 224 ** Returns void 225 ** 226 *******************************************************************************/ 227 void BTM_RegisterScanReqEvt(tBTM_BLE_SCAN_REQ_CBACK *p_scan_req_cback) 228 { 229 #ifdef BTM_BLE_PC_ADV_TEST_MODE // For general stack code (e.g. BTInsight testing), we simply do not define it to exclude or set it to TRUE to include 230 if (BTM_BLE_PC_ADV_TEST_MODE) // For stack component, it is always defined and maps to a global variable g_bDraculaAdvertisingMode 231 { 232 tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; 233 p_cb->p_scan_req_cback = p_scan_req_cback; 234 } 235 #endif 236 } 237 /******************************************************************************* 238 ** 239 ** Function BTM_BleConfigPrivacy 240 ** 241 ** Description This function is called to enable or disable the privacy in 242 ** the local device. 243 ** 244 ** Parameters enable: TRUE to enable it; FALSE to disable it. 245 ** 246 ** Returns void 247 ** 248 *******************************************************************************/ 249 void BTM_BleConfigPrivacy(BOOLEAN enable) 250 { 251 tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; 252 BTM_TRACE_EVENT0 (" BTM_BleConfigPrivacy"); 253 p_cb->privacy = enable; 254 } 255 256 /******************************************************************************* 257 ** 258 ** Function BTM_BleSetBgConnType 259 ** 260 ** Description This function is called to set BLE connectable mode for a 261 ** peripheral device. 262 ** 263 ** Parameters bg_conn_type: it can be auto connection, or selective connection. 264 ** p_select_cback: callback function when selective connection procedure 265 ** is being used. 266 ** 267 ** Returns void 268 ** 269 *******************************************************************************/ 270 BOOLEAN BTM_BleSetBgConnType(tBTM_BLE_CONN_TYPE bg_conn_type, 271 tBTM_BLE_SEL_CBACK *p_select_cback) 272 { 273 BOOLEAN started = TRUE; 274 275 BTM_TRACE_EVENT0 ("BTM_BleSetBgConnType "); 276 277 if (btm_cb.ble_ctr_cb.bg_conn_type != bg_conn_type) 278 { 279 switch (bg_conn_type) 280 { 281 case BTM_BLE_CONN_AUTO: 282 btm_ble_start_auto_conn(TRUE); 283 break; 284 285 case BTM_BLE_CONN_SELECTIVE: 286 if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO) 287 { 288 btm_ble_start_auto_conn(FALSE); 289 } 290 started = btm_ble_start_select_conn(TRUE, p_select_cback); 291 break; 292 293 case BTM_BLE_CONN_NONE: 294 if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO) 295 { 296 btm_ble_start_auto_conn(FALSE); 297 } 298 else if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE) 299 { 300 btm_ble_start_select_conn(FALSE, NULL); 301 } 302 started = TRUE; 303 break; 304 305 default: 306 BTM_TRACE_ERROR1("invalid bg connection type : %d ", bg_conn_type); 307 started = FALSE; 308 break; 309 } 310 311 if (started) 312 btm_cb.ble_ctr_cb.bg_conn_type = bg_conn_type; 313 } 314 return started; 315 } 316 317 /******************************************************************************* 318 ** 319 ** Function BTM_BleUpdateBgConnDev 320 ** 321 ** Description This function is called to add or remove a device into/from 322 ** background connection procedure. The background connection 323 * procedure is decided by the background connection type, it can be 324 * auto connection, or selective connection. 325 ** 326 ** Parameters add_remove: TRUE to add; FALSE to remove. 327 ** remote_bda: device address to add/remove. 328 ** 329 ** Returns void 330 ** 331 *******************************************************************************/ 332 BOOLEAN BTM_BleUpdateBgConnDev(BOOLEAN add_remove, BD_ADDR remote_bda) 333 { 334 tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; 335 tBTM_BLE_SEL_CBACK *p_select_cback; 336 BOOLEAN ret = TRUE; 337 338 BTM_TRACE_EVENT0 (" BTM_BleUpdateBgConnDev"); 339 340 /* if auto connection is active */ 341 if (p_cb->bg_conn_state == BLE_BG_CONN_ACTIVE) 342 { 343 if (p_cb->bg_conn_type == BTM_BLE_CONN_AUTO) 344 { 345 /* terminate auto connection first */ 346 ret = btm_ble_start_auto_conn(FALSE); 347 } 348 else if (p_cb->bg_conn_type == BTM_BLE_CONN_SELECTIVE) 349 { 350 p_select_cback = btm_cb.ble_ctr_cb.p_select_cback; 351 ret = btm_ble_start_select_conn(FALSE, NULL); 352 } 353 } 354 if (ret) 355 { 356 /* update white list */ 357 ret = btm_update_bg_conn_list(add_remove, remote_bda); 358 btm_update_dev_to_white_list(add_remove, remote_bda, BLE_ADDR_PUBLIC); 359 } 360 361 if (ret && p_cb->bg_conn_state == BLE_BG_CONN_IDLE) 362 { 363 if (p_cb->bg_conn_type == BTM_BLE_CONN_AUTO) 364 { 365 /* restart auto connection */ 366 btm_ble_start_auto_conn(TRUE); 367 } 368 else if (p_cb->bg_conn_type == BTM_BLE_CONN_SELECTIVE) 369 { 370 p_select_cback = btm_cb.ble_ctr_cb.p_select_cback; 371 btm_ble_start_select_conn(TRUE, p_select_cback); 372 } 373 } 374 return ret; 375 } 376 377 /******************************************************************************* 378 ** 379 ** Function BTM_BleSetConnMode 380 ** 381 ** Description This function is called to set BLE connectable mode for a 382 ** peripheral device. 383 ** 384 ** Parameters directed: is directed connectable mode, or non-directed. 385 ** p_dir_bda: connectable direct initiator's LE device address 386 ** 387 ** Returns void 388 ** 389 *******************************************************************************/ 390 tBTM_STATUS BTM_BleSetConnMode(BOOLEAN directed, tBLE_BD_ADDR *p_dir_bda) 391 { 392 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 393 tBTM_STATUS status = BTM_SUCCESS; 394 BD_ADDR reconn_bda; 395 396 BTM_TRACE_EVENT0 ("BTM_BleSetConnMode "); 397 398 memcpy(&p_cb->direct_bda, &le_bda_any, sizeof(tBLE_BD_ADDR)); 399 p_cb->own_addr_type = BLE_ADDR_PUBLIC; 400 401 if (directed) 402 { 403 if (p_dir_bda) 404 { 405 memcpy(&p_cb->direct_bda, p_dir_bda, sizeof(tBLE_BD_ADDR)); 406 407 if (btm_cb.ble_ctr_cb.privacy /* && GAP privacy ad reconnect addr exist */) 408 { 409 /* write reconnect address to controller*/ 410 btsnd_hcic_ble_set_random_addr(reconn_bda); 411 } 412 /* else use static address or publich address */ 413 414 } 415 else 416 status = BTM_ILLEGAL_VALUE; 417 } 418 else /* undirected connecatable */ 419 { 420 if (btm_cb.ble_ctr_cb.privacy /* GAP privacy flag enabled */) 421 { 422 /* generate resolvable private address */ 423 btm_gen_resolvable_private_addr(); 424 } /* else use publich address */ 425 426 } 427 return status; 428 } 429 430 /******************************************************************************* 431 ** 432 ** Function BTM_BleSetAdvParams 433 ** 434 ** Description This function is called to set advertising parameters. 435 ** 436 ** Parameters adv_int_min: minimum advertising interval 437 ** adv_int_max: maximum advertising interval 438 ** p_dir_bda: connectable direct initiator's LE device address 439 ** chnl_map: advertising channel map. 440 ** 441 ** Returns void 442 ** 443 *******************************************************************************/ 444 tBTM_STATUS BTM_BleSetAdvParams(UINT16 adv_int_min, UINT16 adv_int_max, 445 tBLE_BD_ADDR *p_dir_bda, 446 tBTM_BLE_ADV_CHNL_MAP chnl_map) 447 { 448 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 449 tBTM_STATUS status = BTM_SUCCESS; 450 451 BTM_TRACE_EVENT0 ("BTM_BleSetAdvParams"); 452 453 if (!BTM_BLE_VALID_PRAM(adv_int_min, BTM_BLE_ADV_INT_MIN, BTM_BLE_ADV_INT_MAX) || 454 !BTM_BLE_VALID_PRAM(adv_int_max, BTM_BLE_ADV_INT_MIN, BTM_BLE_ADV_INT_MAX)) 455 { 456 return BTM_ILLEGAL_VALUE; 457 } 458 459 p_cb->adv_interval_min = adv_int_min; 460 p_cb->adv_interval_max = adv_int_max; 461 p_cb->adv_chnl_map = chnl_map; 462 463 if (p_dir_bda) 464 { 465 memcpy(&p_cb->direct_bda, p_dir_bda, sizeof(tBLE_BD_ADDR)); 466 } 467 else 468 memcpy(&p_cb->direct_bda, &le_bda_any, sizeof(tBLE_BD_ADDR)); 469 470 if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE) 471 { 472 BTM_TRACE_EVENT0 ("update params for an active adv"); 473 474 if (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE) 475 { 476 if (BTM_BLE_VALID_CONN_DIRECT(&p_cb->direct_bda)) 477 p_cb->evt_type = BTM_BLE_CONNECT_DIR_EVT; 478 else 479 p_cb->evt_type = BTM_BLE_CONNECT_EVT; 480 481 BTM_TRACE_DEBUG1(" evt_type = %d", p_cb->evt_type); 482 } 483 484 if (!btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE)) 485 status = BTM_NO_RESOURCES; 486 else 487 /* update adv params */ 488 if (!btsnd_hcic_ble_write_adv_params (p_cb->adv_interval_min, 489 p_cb->adv_interval_max, 490 p_cb->evt_type, 491 p_cb->own_addr_type, 492 p_cb->direct_bda.type, 493 p_cb->direct_bda.bda, 494 p_cb->adv_chnl_map, 495 p_cb->afp)) 496 497 status = BTM_NO_RESOURCES; 498 499 else if (!btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_ENABLE)) 500 { 501 p_cb->adv_mode = BTM_BLE_ADV_DISABLE; 502 503 status = BTM_NO_RESOURCES; 504 } 505 506 } 507 508 return status; 509 } 510 511 /******************************************************************************* 512 ** 513 ** Function BTM_BleReadAdvParams 514 ** 515 ** Description This function is called to set advertising parameters. 516 ** 517 ** Parameters adv_int_min: minimum advertising interval 518 ** adv_int_max: maximum advertising interval 519 ** p_dir_bda: connectable direct initiator's LE device address 520 ** chnl_map: advertising channel map. 521 ** 522 ** Returns void 523 ** 524 *******************************************************************************/ 525 void BTM_BleReadAdvParams (UINT16 *adv_int_min, UINT16 *adv_int_max, 526 tBLE_BD_ADDR *p_dir_bda, tBTM_BLE_ADV_CHNL_MAP *p_chnl_map) 527 { 528 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 529 530 BTM_TRACE_EVENT0 ("BTM_BleReadAdvParams "); 531 532 *adv_int_min = p_cb->adv_interval_min; 533 *adv_int_max = p_cb->adv_interval_max; 534 *p_chnl_map = p_cb->adv_chnl_map; 535 536 if (p_dir_bda != NULL) 537 { 538 memcpy(p_dir_bda, &p_cb->direct_bda, sizeof(tBLE_BD_ADDR)); 539 } 540 } 541 542 543 /******************************************************************************* 544 ** 545 ** Function BTM_BleSetScanParams 546 ** 547 ** Description This function is called to set Scan parameters. 548 ** 549 ** Parameters adv_int_min: minimum advertising interval 550 ** adv_int_max: maximum advertising interval 551 ** p_dir_bda: connectable direct initiator's LE device address 552 ** chnl_map: advertising channel map. 553 ** scan_type: active scan or passive scan 554 ** 555 ** Returns void 556 ** 557 *******************************************************************************/ 558 void BTM_BleSetScanParams(UINT16 scan_interval, UINT16 scan_window, tBTM_BLE_SCAN_MODE scan_mode) 559 { 560 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 561 562 BTM_TRACE_EVENT0 (" BTM_BleSetScanParams"); 563 564 if (BTM_BLE_VALID_PRAM(scan_interval, BTM_BLE_SCAN_INT_MIN, BTM_BLE_SCAN_INT_MAX) && 565 BTM_BLE_VALID_PRAM(scan_window, BTM_BLE_SCAN_WIN_MIN, BTM_BLE_SCAN_WIN_MAX) && 566 (scan_mode == BTM_BLE_SCAN_MODE_ACTI || scan_mode == BTM_BLE_SCAN_MODE_PASS)) 567 { 568 p_cb->scan_type = scan_mode; 569 570 if (BTM_BLE_CONN_PARAM_UNDEF != scan_interval) 571 p_cb->scan_interval = scan_interval; 572 573 if (BTM_BLE_CONN_PARAM_UNDEF != scan_window) 574 p_cb->scan_window = scan_window; 575 } 576 else 577 { 578 BTM_TRACE_ERROR2("Illegal params: scan_interval = %d scan_window = %d", 579 scan_interval, scan_window); 580 } 581 582 } 583 584 /******************************************************************************* 585 ** 586 ** Function BTM_BleWriteScanRsp 587 ** 588 ** Description This function is called to write LE scan response. 589 ** 590 ** Parameters: p_scan_rsp: scan response information. 591 ** 592 ** Returns void 593 ** 594 *******************************************************************************/ 595 tBTM_STATUS BTM_BleWriteScanRsp(tBTM_BLE_AD_MASK data_mask, tBTM_BLE_ADV_DATA *p_data) 596 { 597 tBTM_STATUS status = BTM_NO_RESOURCES; 598 UINT8 rsp_data[BTM_BLE_AD_DATA_LEN], 599 *p = rsp_data; 600 601 BTM_TRACE_EVENT0 (" BTM_BleWriteScanRsp"); 602 memset(rsp_data, 0, BTM_BLE_AD_DATA_LEN); 603 btm_ble_build_adv_data(&data_mask, &p, p_data); 604 605 if (btsnd_hcic_ble_set_scan_rsp_data((UINT8)(p - rsp_data), rsp_data)) 606 { 607 status = BTM_SUCCESS; 608 609 if (p_data != NULL) 610 btm_cb.ble_ctr_cb.inq_var.scan_rsp = TRUE; 611 else 612 btm_cb.ble_ctr_cb.inq_var.scan_rsp = FALSE; 613 } 614 else 615 status = BTM_ILLEGAL_VALUE; 616 617 return status; 618 } 619 620 /******************************************************************************* 621 ** 622 ** Function BTM_BleWriteAdvData 623 ** 624 ** Description This function is called to write advertising data. 625 ** 626 ** Parameters: None. 627 ** 628 ** Returns void 629 ** 630 *******************************************************************************/ 631 tBTM_STATUS BTM_BleWriteAdvData(tBTM_BLE_AD_MASK data_mask, tBTM_BLE_ADV_DATA *p_data) 632 { 633 tBTM_BLE_LOCAL_ADV_DATA *p_cb_data = &btm_cb.ble_ctr_cb.inq_var.adv_data; 634 UINT8 *p; 635 UINT16 mask = data_mask; 636 637 memset(p_cb_data, 0, sizeof(tBTM_BLE_LOCAL_ADV_DATA)); 638 p = p_cb_data->ad_data; 639 p_cb_data->data_mask = data_mask; 640 641 BTM_TRACE_EVENT0 ("BTM_BleWriteAdvData "); 642 p_cb_data->p_flags = btm_ble_build_adv_data(&mask, &p, p_data); 643 644 p_cb_data->p_pad = p; 645 646 if (data_mask != 0) 647 { 648 BTM_TRACE_ERROR0("Partial data write into ADV"); 649 } 650 651 p_cb_data->data_mask &= ~mask; 652 653 if (btsnd_hcic_ble_set_adv_data((UINT8)(p_cb_data->p_pad - p_cb_data->ad_data), 654 p_cb_data->ad_data)) 655 return BTM_SUCCESS; 656 else 657 return BTM_NO_RESOURCES; 658 659 } 660 661 /******************************************************************************* 662 ** 663 ** Function BTM_CheckAdvData 664 ** 665 ** Description This function is called to get ADV data for a specific type. 666 ** 667 ** Parameters p_adv - pointer of ADV data 668 ** type - finding ADV data type 669 ** p_length - return the length of ADV data not including type 670 ** 671 ** Returns pointer of ADV data 672 ** 673 *******************************************************************************/ 674 UINT8 *BTM_CheckAdvData( UINT8 *p_adv, UINT8 type, UINT8 *p_length) 675 { 676 UINT8 *p = p_adv; 677 UINT8 length; 678 UINT8 adv_type; 679 BTM_TRACE_API1("BTM_CheckAdvData type=0x%02X", type); 680 681 STREAM_TO_UINT8(length, p); 682 683 while ( length && (p - p_adv <= BTM_BLE_CACHE_ADV_DATA_MAX)) 684 { 685 STREAM_TO_UINT8(adv_type, p); 686 687 if ( adv_type == type ) 688 { 689 /* length doesn't include itself */ 690 *p_length = length - 1; /* minus the length of type */ 691 return p; 692 } 693 p += length - 1; /* skip the length of data */ 694 STREAM_TO_UINT8(length, p); 695 } 696 697 *p_length = 0; 698 return NULL; 699 } 700 701 /******************************************************************************* 702 ** 703 ** Function btm_ble_build_adv_data 704 ** 705 ** Description This function is called build the adv data and rsp data. 706 *******************************************************************************/ 707 static UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst, tBTM_BLE_ADV_DATA *p_data) 708 { 709 UINT16 data_mask = *p_data_mask; 710 UINT8 *p = *p_dst, 711 *p_flag = NULL; 712 UINT16 len = BTM_BLE_AD_DATA_LEN, cp_len = 0; 713 UINT8 i = 0; 714 tBTM_BLE_ATTR *p_attr; 715 tBTM_BLE_PROP_ELEM *p_elem; 716 717 BTM_TRACE_EVENT0 (" btm_ble_build_adv_data"); 718 719 /* build the adv data structure and build the data string */ 720 if (data_mask) 721 { 722 /* flags */ 723 if (data_mask & BTM_BLE_AD_BIT_FLAGS) 724 { 725 *p++ = 2; 726 *p++ = BTM_BLE_AD_TYPE_FLAG; 727 p_flag = p; 728 if (p_data) 729 *p++ = p_data->flag; 730 else 731 *p++ = 0; 732 733 len -= 3; 734 735 data_mask &= ~BTM_BLE_AD_BIT_FLAGS; 736 } 737 /* device name */ 738 if (len > 2 && data_mask & BTM_BLE_AD_BIT_DEV_NAME) 739 { 740 if (strlen(btm_cb.cfg.bd_name) > (UINT16)(len - 2)) 741 { 742 *p++ = len - 2 + 1; 743 *p++ = BTM_BLE_AD_TYPE_NAME_SHORT; 744 ARRAY_TO_STREAM(p, btm_cb.cfg.bd_name, len - 2); 745 } 746 else 747 { 748 cp_len = (UINT16)strlen(btm_cb.cfg.bd_name); 749 *p++ = cp_len + 1; 750 *p++ = BTM_BLE_AD_TYPE_NAME_CMPL; 751 ARRAY_TO_STREAM(p, btm_cb.cfg.bd_name, cp_len); 752 } 753 754 len -= (cp_len + 2); 755 data_mask &= ~BTM_BLE_AD_BIT_DEV_NAME; 756 } 757 /* manufacturer data */ 758 if (len > 2 && data_mask & BTM_BLE_AD_BIT_MANU && 759 p_data && p_data->manu.len != 0 && p_data->manu.p_val) 760 { 761 if (p_data->manu.len > (len - 2)) 762 cp_len = len - 2; 763 else 764 cp_len = p_data->manu.len; 765 766 *p++ = cp_len + 1; 767 *p++ = BTM_BLE_AD_TYPE_MANU; 768 ARRAY_TO_STREAM(p, p_data->manu.p_val, cp_len); 769 770 len -= (cp_len + 2); 771 data_mask &= ~BTM_BLE_AD_BIT_MANU; 772 } 773 /* TX power */ 774 if (len > 2 && data_mask & BTM_BLE_AD_BIT_TX_PWR) 775 { 776 *p++ = 2; 777 *p++ = BTM_BLE_AD_TYPE_TX_PWR; 778 *p++ = btm_cb.ble_ctr_cb.inq_var.tx_power; 779 len -= 3; 780 781 data_mask &= ~BTM_BLE_AD_BIT_TX_PWR; 782 } 783 /* services */ 784 if (len > 2 && data_mask & BTM_BLE_AD_BIT_SERVICE && 785 p_data && p_data->services.num_service != 0 && 786 p_data->services.p_uuid) 787 { 788 if (p_data->services.num_service * 2 > (len - 2)) 789 { 790 cp_len = (len - 2)/2; 791 *p ++ = 1 + cp_len * 2; 792 *p++ = BTM_BLE_AD_TYPE_SRV_PART; 793 } 794 else 795 { 796 cp_len = p_data->services.num_service; 797 *p++ = 1 + cp_len * 2; 798 *p++ = BTM_BLE_AD_TYPE_SRV_CMPL; 799 } 800 for (i = 0; i < cp_len; i ++) 801 { 802 UINT16_TO_STREAM(p, *(p_data->services.p_uuid + i)); 803 } 804 805 len -= (cp_len * 2 + 2); 806 data_mask &= ~BTM_BLE_AD_BIT_SERVICE; 807 } 808 if (len >= 6 && data_mask & BTM_BLE_AD_BIT_INT_RANGE && 809 p_data) 810 { 811 *p++ = 5; 812 *p++ = BTM_BLE_AD_TYPE_INT_RANGE; 813 UINT16_TO_STREAM(p, p_data->int_range.low); 814 UINT16_TO_STREAM(p, p_data->int_range.hi); 815 len -= 6; 816 data_mask &= ~BTM_BLE_AD_BIT_INT_RANGE; 817 } 818 if (data_mask & BTM_BLE_AD_BIT_ATTR && p_data && p_data->attr.num_attr != 0) 819 { 820 for (i = 0; i < p_data->attr.num_attr ; i ++) 821 { 822 p_attr = p_data->attr.attr_list + i; 823 824 if (len >= (2 + 2 + p_attr->data_len))/* len byte(1) + ATTR type(1) + Uuid len(2) + value length */ 825 { 826 *p ++ = p_attr->data_len + 2 + 1; /* Uuid len + value length */ 827 *p ++ = BTM_BLE_AD_TYPE_ATTR; 828 UINT16_TO_STREAM(p, p_attr->uuid); 829 ARRAY_TO_STREAM(p, p_attr->p_data, p_attr->data_len); 830 831 len -= (4 + p_attr->data_len); 832 } 833 else 834 break; 835 } 836 if (i == p_data->attr.num_attr) 837 data_mask &= ~BTM_BLE_AD_BIT_ATTR; 838 } 839 if (data_mask & BTM_BLE_AD_BIT_PROPRIETARY && p_data && p_data->p_proprietary) 840 { 841 for (i = 0; i < p_data->p_proprietary->num_elem ; i ++) 842 { 843 p_elem = p_data->p_proprietary->p_elem + i; 844 845 if (len >= (2 + p_elem->len))/* len byte(1) + ATTR type(1) + Uuid len(2) + value length */ 846 { 847 *p ++ = p_elem->len + 1; /* Uuid len + value length */ 848 *p ++ = p_elem->adv_type; 849 ARRAY_TO_STREAM(p, p_elem->p_val, p_elem->len); 850 851 len -= (2 + p_elem->len); 852 } 853 else 854 { 855 BTM_TRACE_WARNING0("data exceed max adv packet length"); 856 break; 857 } 858 } 859 data_mask &= ~BTM_BLE_AD_BIT_PROPRIETARY; 860 } 861 } 862 863 *p_data_mask = data_mask; 864 *p_dst = p; 865 866 return p_flag; 867 } 868 869 /******************************************************************************* 870 ** 871 ** Function btm_ble_set_discoverability 872 ** 873 ** Description This function is called to set BLE discoverable mode. 874 ** 875 ** Parameters: mode: discoverability mode. 876 ** 877 ** Returns void 878 ** 879 *******************************************************************************/ 880 tBTM_STATUS btm_ble_set_discoverability(UINT16 combined_mode) 881 { 882 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 883 UINT16 mode = (combined_mode & BTM_BLE_DISCOVERABLE_MASK); 884 UINT8 flag = 0; 885 UINT8 new_mode = BTM_BLE_ADV_ENABLE; 886 UINT8 evt_type = (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE) ? \ 887 ((p_cb->scan_rsp) ? BTM_BLE_DISCOVER_EVT : BTM_BLE_NON_CONNECT_EVT )\ 888 : BTM_BLE_CONNECT_EVT; 889 tBTM_STATUS status = BTM_SUCCESS; 890 891 BTM_TRACE_EVENT2 ("btm_ble_set_discoverability mode=0x%0x combined_mode=0x%x", mode, combined_mode); 892 893 /*** Check mode parameter ***/ 894 if (mode > BTM_BLE_MAX_DISCOVERABLE) 895 return(BTM_ILLEGAL_VALUE); 896 897 p_cb->br_edr_supported_flag |= (combined_mode & BTM_DISCOVERABLE_MASK); 898 p_cb->discoverable_mode = mode; 899 900 if (!p_cb->br_edr_supported_flag) 901 { 902 flag = BTM_BLE_BREDR_NOT_SPT; 903 BTM_TRACE_DEBUG1("btm_ble_set_discoverability (BREDR not sup)flag=0x%x",flag); 904 } 905 906 BTM_TRACE_DEBUG1 ("br_edr_supported=0x%x", p_cb->br_edr_supported_flag); 907 908 if (mode == BTM_BLE_LIMITED_DISCOVERABLE || mode == BTM_BLE_GENERAL_DISCOVERABLE) 909 { 910 BTM_TRACE_EVENT0 ("mode == BTM_BLE_LIMITED_DISCOVERABLE "); 911 /* write ADV data with limited disc flag */ 912 if (mode == BTM_BLE_LIMITED_DISCOVERABLE) 913 flag |= BTM_BLE_LIMIT_DISC_FLAG ; 914 else 915 flag |= BTM_BLE_GEN_DISC_FLAG; 916 } 917 else /* non-discoverable */ 918 { 919 BTM_TRACE_EVENT0 ("mode == BTM_BLE_NON_DISCOVERABLE "); 920 921 if (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE) 922 { 923 p_cb->br_edr_supported_flag = 0; 924 925 BTM_TRACE_EVENT0 ("always disable adv in non-discoverable non-connectable mode if no scan rsp "); 926 if (!p_cb->scan_rsp ) 927 new_mode = BTM_BLE_ADV_DISABLE; 928 } 929 else 930 { 931 if (BTM_BLE_VALID_CONN_DIRECT(&p_cb->direct_bda)) 932 { 933 BTM_TRACE_DEBUG0("evt_type = BTM_BLE_CONNECT_DIR_EVT"); 934 evt_type = BTM_BLE_CONNECT_DIR_EVT; 935 } 936 else 937 { 938 BTM_TRACE_DEBUG0(" evt_type = BTM_BLE_CONNECT_EVT"); 939 evt_type = BTM_BLE_CONNECT_EVT; 940 } 941 } 942 } 943 btm_ble_update_adv_flag(flag); 944 945 /* update adv params if start advertising */ 946 BTM_TRACE_EVENT2 ("evt_type=0x%x p-cb->evt_type=0x%x ", evt_type, p_cb->evt_type); 947 if (new_mode == BTM_BLE_ADV_ENABLE && evt_type != p_cb->evt_type) 948 { 949 if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE) 950 { 951 BTM_TRACE_EVENT0 ("Set Adv disable"); 952 p_cb->adv_mode = BTM_BLE_ADV_DISABLE; 953 btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE); 954 } 955 956 /* update adv params */ 957 if (!btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min : BTM_BLE_GAP_ADV_INT), 958 (UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max : BTM_BLE_GAP_ADV_INT), 959 evt_type, 960 p_cb->own_addr_type, 961 p_cb->direct_bda.type, p_cb->direct_bda.bda, 962 p_cb->adv_chnl_map, 963 p_cb->afp)) 964 965 status = BTM_NO_RESOURCES; 966 else 967 p_cb->evt_type = evt_type; 968 969 } 970 if (status == BTM_SUCCESS && p_cb->adv_mode != new_mode) 971 { 972 /* update advertising mode */ 973 if (!btsnd_hcic_ble_set_adv_enable (new_mode)) 974 status = BTM_NO_RESOURCES; 975 else 976 p_cb->adv_mode = new_mode; 977 } 978 979 /* set up stop advertising timer */ 980 if (status == BTM_SUCCESS && mode == BTM_BLE_LIMITED_DISCOVERABLE) 981 { 982 BTM_TRACE_EVENT1 ("start timer for limited disc mode duration=%d (30 secs)", BTM_BLE_GAP_LIM_TOUT); 983 /* start Tgap(lim_timeout) */ 984 btu_start_timer (&p_cb->inq_timer_ent, BTU_TTYPE_BLE_GAP_LIM_DISC, 985 BTM_BLE_GAP_LIM_TOUT); 986 } 987 return status; 988 } 989 990 /******************************************************************************* 991 ** 992 ** Function btm_ble_set_connectability 993 ** 994 ** Description This function is called to set BLE connectability mode. 995 ** 996 ** Parameters: mode: connectability mode. 997 ** 998 ** Returns void 999 ** 1000 *******************************************************************************/ 1001 tBTM_STATUS btm_ble_set_connectability(UINT16 combined_mode) 1002 { 1003 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 1004 UINT16 mode = (combined_mode & BTM_BLE_CONNECTABLE_MASK); 1005 UINT8 cur_flag = 0; 1006 UINT8 cur_br_edr_not_sup_flag; 1007 UINT8 new_flag; 1008 UINT8 new_mode = BTM_BLE_ADV_ENABLE; 1009 UINT8 evt_type = (p_cb->scan_rsp) ? BTM_BLE_DISCOVER_EVT: BTM_BLE_NON_CONNECT_EVT; 1010 tBTM_STATUS status = BTM_SUCCESS; 1011 1012 BTM_TRACE_EVENT2 ("btm_ble_set_connectability mode=0x%0x combined_mode=0x%x", mode, combined_mode); 1013 1014 /*** Check mode parameter ***/ 1015 if (mode > BTM_BLE_MAX_CONNECTABLE) 1016 return(BTM_ILLEGAL_VALUE); 1017 if (btm_cb.ble_ctr_cb.inq_var.adv_data.p_flags) 1018 cur_flag = *btm_cb.ble_ctr_cb.inq_var.adv_data.p_flags ; 1019 cur_br_edr_not_sup_flag = (cur_flag & ((UINT8) BTM_BLE_BREDR_NOT_SPT)); 1020 1021 p_cb->br_edr_supported_flag |= ((combined_mode & BTM_CONNECTABLE_MASK) << 4); 1022 if (p_cb->br_edr_supported_flag && cur_br_edr_not_sup_flag) 1023 { 1024 new_flag = cur_flag & ((UINT8) (~BTM_BLE_BREDR_NOT_SPT)); 1025 BTM_TRACE_EVENT2 ("new flag=0x%x cur flag=0x%x",new_flag, cur_flag); 1026 btm_ble_update_adv_flag(new_flag); 1027 } 1028 p_cb->connectable_mode = mode; 1029 1030 if (mode == BTM_BLE_NON_CONNECTABLE) 1031 { 1032 if (p_cb->discoverable_mode == BTM_BLE_NON_DISCOVERABLE) 1033 { 1034 p_cb->br_edr_supported_flag = 0; 1035 BTM_TRACE_EVENT0 ("always disable adv in non-discoverable non-connectable mode with no scan rsp"); 1036 if(!p_cb->scan_rsp) 1037 new_mode = BTM_BLE_ADV_DISABLE; 1038 } 1039 } 1040 else /* connectable */ 1041 { 1042 BTM_TRACE_DEBUG2("btm_ble_set_connectability: mode = %04x discoverable_mode= %02x", mode, p_cb->discoverable_mode); 1043 1044 if (BTM_BLE_VALID_CONN_DIRECT(&p_cb->direct_bda)) 1045 { 1046 BTM_TRACE_DEBUG0("evt_type = BTM_BLE_CONNECT_DIR_EVT"); 1047 evt_type = BTM_BLE_CONNECT_DIR_EVT; 1048 } 1049 else 1050 { 1051 BTM_TRACE_DEBUG0(" evt_type = BTM_BLE_CONNECT_EVT"); 1052 evt_type = BTM_BLE_CONNECT_EVT; 1053 } 1054 } 1055 1056 /* update adv params if needed */ 1057 if (p_cb->evt_type != evt_type && new_mode == BTM_BLE_ADV_ENABLE) 1058 { 1059 if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE) 1060 { 1061 p_cb->adv_mode = BTM_BLE_ADV_DISABLE; 1062 btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE); 1063 } 1064 1065 if (!btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min : BTM_BLE_GAP_ADV_INT), 1066 (UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max : BTM_BLE_GAP_ADV_INT), 1067 evt_type, 1068 p_cb->own_addr_type, 1069 p_cb->direct_bda.type, 1070 p_cb->direct_bda.bda, 1071 p_cb->adv_chnl_map, 1072 p_cb->afp)) 1073 status = BTM_NO_RESOURCES; 1074 else 1075 p_cb->evt_type = evt_type; 1076 } 1077 /* update advertising mode */ 1078 if (status == BTM_SUCCESS && new_mode != p_cb->adv_mode) 1079 { 1080 if (btsnd_hcic_ble_set_adv_enable (new_mode)) 1081 { 1082 status = BTM_SUCCESS; 1083 1084 p_cb->adv_mode = new_mode; 1085 } 1086 } 1087 1088 return status; 1089 } 1090 1091 /******************************************************************************* 1092 ** 1093 ** Function btm_ble_start_inquiry 1094 ** 1095 ** Description This function is called to start BLE inquiry procedure. 1096 ** If the duration is zero, the periodic inquiry mode is cancelled. 1097 ** 1098 ** Parameters: mode - GENERAL or LIMITED inquiry 1099 ** p_inq_params - pointer to the BLE inquiry parameter. 1100 ** p_results_cb - callback returning pointer to results (tBTM_INQ_RESULTS) 1101 ** p_cmpl_cb - callback indicating the end of an inquiry 1102 ** 1103 ** 1104 ** 1105 ** Returns BTM_CMD_STARTED if successfully started 1106 ** BTM_ILLEGAL_VALUE if a bad parameter is detected 1107 ** BTM_NO_RESOURCES if could not allocate a message buffer 1108 ** BTM_SUCCESS - if cancelling the periodic inquiry 1109 ** BTM_BUSY - if an inquiry is already active 1110 ** BTM_WRONG_MODE if the device is not up. 1111 ** 1112 *******************************************************************************/ 1113 tBTM_STATUS btm_ble_start_inquiry (UINT8 mode, UINT8 duration) 1114 { 1115 tBTM_STATUS status = BTM_NO_RESOURCES; 1116 tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var; 1117 1118 BTM_TRACE_DEBUG2("btm_ble_start_inquiry: mode = %02x inq_active = %d", mode, btm_cb.btm_inq_vars.inq_active); 1119 1120 if (p_inq->proc_mode != BTM_BLE_INQUIRY_NONE) 1121 { 1122 BTM_TRACE_ERROR0("LE scan is active, can not start inquiry"); 1123 return(BTM_BUSY); 1124 } 1125 1126 btm_update_scanner_filter_policy(SP_ADV_ALL); 1127 1128 /* start scan, already enable duplicate filtering */ 1129 if (btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_ENABLE, BTM_BLE_DUPLICATE_DISABLE)) 1130 { 1131 status = BTM_SUCCESS; 1132 p_inq->proc_mode = mode; 1133 1134 if (duration != 0) 1135 { 1136 /* start inquiry timer */ 1137 btu_start_timer (&p_inq->inq_timer_ent, BTU_TTYPE_BLE_INQUIRY, duration); 1138 } 1139 } 1140 1141 return status; 1142 } 1143 1144 /******************************************************************************* 1145 ** 1146 ** Function btm_ble_read_remote_name_cmpl 1147 ** 1148 ** Description This function is called when BLE remote name is received. 1149 ** 1150 ** Returns void 1151 ** 1152 *******************************************************************************/ 1153 void btm_ble_read_remote_name_cmpl(BOOLEAN status, BD_ADDR bda, UINT16 length, char *p_name) 1154 { 1155 UINT8 hci_status = HCI_SUCCESS; 1156 BD_NAME bd_name; 1157 1158 memset(bd_name, 0, BD_NAME_LEN); 1159 memcpy((UINT8*)bd_name, p_name, length); 1160 1161 if ((!status) || (length==0)) 1162 { 1163 hci_status = HCI_ERR_HOST_TIMEOUT; 1164 } 1165 1166 btm_process_remote_name(bda, bd_name, length, hci_status); 1167 btm_sec_rmt_name_request_complete (bda, (UINT8 *)p_name, hci_status); 1168 } 1169 1170 /******************************************************************************* 1171 ** 1172 ** Function btm_ble_read_remote_name 1173 ** 1174 ** Description This function read remote LE device name using GATT read 1175 ** procedure. 1176 ** 1177 ** Parameters: None. 1178 ** 1179 ** Returns void 1180 ** 1181 *******************************************************************************/ 1182 tBTM_STATUS btm_ble_read_remote_name(BD_ADDR remote_bda, tBTM_INQ_INFO *p_cur, tBTM_CMPL_CB *p_cb) 1183 { 1184 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1185 1186 if (p_cur && 1187 p_cur->results.ble_evt_type != BTM_BLE_EVT_CONN_ADV && 1188 p_cur->results.ble_evt_type != BTM_BLE_EVT_CONN_DIR_ADV) 1189 { 1190 BTM_TRACE_DEBUG0("name request to non-connectable device failed."); 1191 return BTM_ERR_PROCESSING; 1192 } 1193 1194 /* read remote device name using GATT procedure */ 1195 if (p_inq->remname_active) 1196 return BTM_BUSY; 1197 1198 if (!GAP_BleReadPeerDevName(remote_bda, btm_ble_read_remote_name_cmpl)) 1199 return BTM_BUSY; 1200 1201 p_inq->p_remname_cmpl_cb = p_cb; 1202 p_inq->remname_active = TRUE; 1203 1204 memcpy(p_inq->remname_bda, remote_bda, BD_ADDR_LEN); 1205 1206 btu_start_timer (&p_inq->rmt_name_timer_ent, 1207 BTU_TTYPE_BTM_RMT_NAME, 1208 BTM_EXT_BLE_RMT_NAME_TIMEOUT); 1209 1210 return BTM_CMD_STARTED; 1211 } 1212 1213 /******************************************************************************* 1214 ** 1215 ** Function btm_ble_cancel_remote_name 1216 ** 1217 ** Description This function cancel read remote LE device name. 1218 ** 1219 ** Parameters: None. 1220 ** 1221 ** Returns void 1222 ** 1223 *******************************************************************************/ 1224 BOOLEAN btm_ble_cancel_remote_name(BD_ADDR remote_bda) 1225 { 1226 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1227 BOOLEAN status; 1228 1229 status = GAP_BleCancelReadPeerDevName(remote_bda); 1230 1231 p_inq->remname_active = FALSE; 1232 memset(p_inq->remname_bda, 0, BD_ADDR_LEN); 1233 btu_stop_timer(&p_inq->rmt_name_timer_ent); 1234 1235 return status; 1236 } 1237 1238 /******************************************************************************* 1239 ** 1240 ** Function btm_ble_update_adv_flag 1241 ** 1242 ** Description This function update the limited discoverable flag in the adv 1243 ** data. 1244 ** 1245 ** Parameters: None. 1246 ** 1247 ** Returns void 1248 ** 1249 *******************************************************************************/ 1250 static void btm_ble_update_adv_flag(UINT8 flag) 1251 { 1252 tBTM_BLE_LOCAL_ADV_DATA *p_adv_data = &btm_cb.ble_ctr_cb.inq_var.adv_data; 1253 UINT8 *p; 1254 1255 BTM_TRACE_DEBUG1 ("btm_ble_update_adv_flag new=0x%x", flag); 1256 1257 if (p_adv_data->p_flags != NULL) 1258 { 1259 BTM_TRACE_DEBUG1 ("btm_ble_update_adv_flag old=0x%x", *p_adv_data->p_flags); 1260 *p_adv_data->p_flags = flag; 1261 } 1262 else /* no FLAGS in ADV data*/ 1263 { 1264 p = (p_adv_data->p_pad == NULL) ? p_adv_data->ad_data : p_adv_data->p_pad; 1265 /* need 3 bytes space to stuff in the flags, if not */ 1266 /* erase all written data, just for flags */ 1267 if ((BTM_BLE_AD_DATA_LEN - (p - p_adv_data->ad_data)) < 3) 1268 { 1269 p = p_adv_data->p_pad = p_adv_data->ad_data; 1270 memset(p_adv_data->ad_data, 0, BTM_BLE_AD_DATA_LEN); 1271 } 1272 1273 *p++ = 2; 1274 *p++ = BTM_BLE_AD_TYPE_FLAG; 1275 p_adv_data->p_flags = p; 1276 *p++ = flag; 1277 p_adv_data->p_pad = p; 1278 } 1279 1280 if (btsnd_hcic_ble_set_adv_data((UINT8)(p_adv_data->p_pad - p_adv_data->ad_data), 1281 p_adv_data->ad_data)) 1282 p_adv_data->data_mask |= BTM_BLE_AD_BIT_FLAGS; 1283 1284 } 1285 1286 #if 0 1287 /******************************************************************************* 1288 ** 1289 ** Function btm_ble_parse_adv_data 1290 ** 1291 ** Description This function parse the adv data into a structure. 1292 ** 1293 ** Returns pointer to entry, or NULL if not found 1294 ** 1295 *******************************************************************************/ 1296 static void btm_ble_parse_adv_data(tBTM_INQ_INFO *p_info, UINT8 *p_data, 1297 UINT8 len, tBTM_BLE_INQ_DATA *p_adv_data, UINT8 *p_buf) 1298 { 1299 UINT8 *p_cur = p_data; 1300 UINT8 ad_len, ad_type, ad_flag; 1301 tBTM_BLE_ATTR *p_attr; 1302 1303 BTM_TRACE_EVENT0 (" btm_ble_parse_adv_data"); 1304 1305 while (len > 0) 1306 { 1307 BTM_TRACE_DEBUG1("btm_ble_parse_adv_data: len = %d", len); 1308 if ((ad_len = *p_cur ++) == 0) 1309 break; 1310 1311 ad_type = *p_cur ++; 1312 1313 BTM_TRACE_DEBUG2(" ad_type = %02x ad_len = %d", ad_type, ad_len); 1314 1315 switch (ad_type) 1316 { 1317 case BTM_BLE_AD_TYPE_NAME_SHORT: 1318 1319 case BTM_BLE_AD_TYPE_NAME_CMPL: 1320 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_DEV_NAME; 1321 if (p_info) 1322 { 1323 p_info->remote_name_type =(ad_type == BTM_BLE_AD_TYPE_NAME_SHORT) ? 1324 BTM_BLE_NAME_SHORT: BTM_BLE_NAME_CMPL; 1325 memcpy(p_info->remote_name, p_cur, ad_len -1); 1326 p_info->remote_name[ad_len] = 0; 1327 p_adv_data->p_remote_name = p_info->remote_name; 1328 p_info->remote_name_len = p_adv_data->remote_name_len = ad_len - 1; 1329 BTM_TRACE_DEBUG1("BTM_BLE_AD_TYPE_NAME name = %s",p_adv_data->p_remote_name); 1330 } 1331 p_cur += (ad_len -1); 1332 1333 break; 1334 1335 case BTM_BLE_AD_TYPE_FLAG: 1336 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_FLAGS; 1337 ad_flag = *p_cur ++; 1338 p_adv_data->flag = (UINT8)(ad_flag & BTM_BLE_ADV_FLAG_MASK) ; 1339 BTM_TRACE_DEBUG3("BTM_BLE_AD_TYPE_FLAG flag = %s | %s | %s", 1340 (p_adv_data->flag & BTM_BLE_LIMIT_DISC_FLAG)? "LE_LIMIT_DISC" : "", 1341 (p_adv_data->flag & BTM_BLE_GEN_DISC_FLAG)? "LE_GENERAL_DISC" : "", 1342 (p_adv_data->flag & BTM_BLE_BREDR_NOT_SPT)? "LE Only device" : ""); 1343 break; 1344 1345 case BTM_BLE_AD_TYPE_TX_PWR: 1346 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_TX_PWR; 1347 p_adv_data->tx_power_level = (INT8)*p_cur ++; 1348 BTM_TRACE_DEBUG1("BTM_BLE_AD_TYPE_TX_PWR tx_level = %d", p_adv_data->tx_power_level); 1349 break; 1350 1351 case BTM_BLE_AD_TYPE_ATTR: 1352 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_ATTR; 1353 p_attr = &p_adv_data->attr_data.attr_list[p_adv_data->attr_data.num_attr]; 1354 p_attr->uuid = *p_cur ++; 1355 1356 if (ad_len > 3) 1357 { 1358 p_attr->data_len = ad_len - 3; 1359 p_attr->p_data = p_buf; 1360 memcpy(p_attr->p_data, p_cur, p_attr->data_len); 1361 p_buf += p_attr->data_len; 1362 } 1363 1364 p_adv_data->attr_data.num_attr ++; 1365 BTM_TRACE_DEBUG2("BTM_BLE_AD_TYPE_ATTR[%d] uuid = 0x%04x",p_adv_data->attr_data.num_attr, p_attr->uuid); 1366 break; 1367 1368 case BTM_BLE_AD_TYPE_MANU: 1369 1370 case BTM_BLE_AD_TYPE_SRV_CMPL: 1371 case BTM_BLE_AD_TYPE_SRV_PART: 1372 p_adv_data->ad_mask |= ad_type; 1373 /* need allocate memory to store UUID list */ 1374 p_adv_data->service.num_service = (ad_len - 1)/2; 1375 BTM_TRACE_DEBUG1("service UUID list, num = %d", p_adv_data->service.num_service); 1376 1377 default: 1378 p_cur += (ad_len - 1); 1379 break; 1380 } 1381 len -= (ad_len + 1); 1382 } 1383 } 1384 #endif 1385 1386 /******************************************************************************* 1387 ** 1388 ** Function btm_ble_cache_adv_data 1389 ** 1390 ** Description Update advertising cache data. 1391 ** 1392 ** Returns void 1393 ** 1394 *******************************************************************************/ 1395 void btm_ble_cache_adv_data(tBTM_INQ_RESULTS *p_cur, UINT8 data_len, UINT8 *p, UINT8 evt_type) 1396 { 1397 tBTM_BLE_INQ_CB *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var; 1398 UINT8 *p_cache; 1399 UINT8 length; 1400 1401 /* cache adv report/scan response data */ 1402 if (evt_type != BTM_BLE_SCAN_RSP_EVT) 1403 { 1404 p_le_inq_cb->adv_len = 0; 1405 memset(p_le_inq_cb->adv_data_cache, 0, BTM_BLE_CACHE_ADV_DATA_MAX); 1406 } 1407 1408 if (data_len > 0) 1409 { 1410 p_cache = &p_le_inq_cb->adv_data_cache[p_le_inq_cb->adv_len]; 1411 STREAM_TO_UINT8(length, p); 1412 while ( length && ((p_le_inq_cb->adv_len + length + 1) <= BTM_BLE_CACHE_ADV_DATA_MAX)) 1413 { 1414 /* copy from the length byte & data into cache */ 1415 memcpy(p_cache, p-1, length+1); 1416 /* advance the cache pointer past data */ 1417 p_cache += length+1; 1418 /* increment cache length */ 1419 p_le_inq_cb->adv_len += length+1; 1420 /* skip the length of data */ 1421 p += length; 1422 STREAM_TO_UINT8(length, p); 1423 } 1424 } 1425 1426 /* parse service UUID from adv packet and save it in inq db eir_uuid */ 1427 /* TODO */ 1428 } 1429 /******************************************************************************* 1430 ** 1431 ** Function btm_ble_is_discoverable 1432 ** 1433 ** Description check ADV flag to make sure device is discoverable and match 1434 ** the search condition 1435 ** 1436 ** Parameters 1437 ** 1438 ** Returns void 1439 ** 1440 *******************************************************************************/ 1441 BOOLEAN btm_ble_is_discoverable(BD_ADDR bda, UINT8 evt_type, UINT8 *p) 1442 { 1443 BOOLEAN is_discoverable = FALSE; 1444 UINT8 *p_flag, flag = 0; 1445 UINT8 data_len; 1446 tBTM_INQ_PARMS *p_cond = &btm_cb.btm_inq_vars.inqparms; 1447 1448 STREAM_TO_UINT8 (data_len, p); 1449 1450 /* for observer, always "discoverable */ 1451 if (btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_OBSERVE || 1452 (btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_SELECT_SCAN && 1453 btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE)) 1454 return TRUE; 1455 1456 /* does not match filter condition */ 1457 if (p_cond->filter_cond_type == BTM_FILTER_COND_BD_ADDR && 1458 memcmp(bda, p_cond->filter_cond.bdaddr_cond, BD_ADDR_LEN) != 0) 1459 { 1460 BTM_TRACE_DEBUG0("BD ADDR does not meet filter condition"); 1461 return FALSE; 1462 } 1463 1464 /* scan response does not include the flag */ 1465 if (evt_type == BTM_BLE_SCAN_RSP_EVT) 1466 return FALSE; 1467 1468 if (data_len > BTM_BLE_ADV_DATA_LEN_MAX) 1469 { 1470 BTM_TRACE_WARNING1("ADV data too long %d. discard", data_len); 1471 return FALSE; 1472 } 1473 1474 if (data_len != 0) 1475 { 1476 if ((p_flag = BTM_CheckAdvData(p, BTM_BLE_AD_TYPE_FLAG, &data_len)) != NULL) 1477 { 1478 flag = * p_flag; 1479 1480 if ((btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_GENERAL_INQUIRY) && 1481 (flag & (BTM_BLE_LIMIT_DISC_FLAG|BTM_BLE_GEN_DISC_FLAG)) != 0) 1482 { 1483 BTM_TRACE_DEBUG0("Find Generable Discoverable device"); 1484 is_discoverable = TRUE; 1485 } 1486 1487 else if (btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_LIMITED_INQUIRY && 1488 (flag & BTM_BLE_LIMIT_DISC_FLAG) != 0) 1489 { 1490 BTM_TRACE_DEBUG0("Find limited discoverable device"); 1491 is_discoverable = TRUE; 1492 } 1493 1494 } 1495 } 1496 1497 if (!is_discoverable) 1498 { 1499 BTM_TRACE_ERROR1("discoverable flag not desired: %d", flag); 1500 } 1501 1502 return is_discoverable; 1503 } 1504 /******************************************************************************* 1505 ** 1506 ** Function btm_ble_update_inq_result 1507 ** 1508 ** Description Update adv packet information into inquiry result. 1509 ** 1510 ** Parameters 1511 ** 1512 ** Returns void 1513 ** 1514 *******************************************************************************/ 1515 BOOLEAN btm_ble_update_inq_result(tINQ_DB_ENT *p_i, UINT8 addr_type, UINT8 evt_type, UINT8 *p) 1516 { 1517 BOOLEAN to_report = TRUE; 1518 tBTM_INQ_RESULTS *p_cur = &p_i->inq_info.results; 1519 UINT8 len; 1520 UINT8 *p_flag; 1521 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1522 UINT8 data_len, rssi; 1523 tBTM_BLE_INQ_CB *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var; 1524 UINT8 *p1; 1525 1526 STREAM_TO_UINT8 (data_len, p); 1527 1528 if (data_len > BTM_BLE_ADV_DATA_LEN_MAX) 1529 { 1530 BTM_TRACE_WARNING1("EIR data too long %d. discard", data_len); 1531 return FALSE; 1532 } 1533 btm_ble_cache_adv_data(p_cur, data_len, p, evt_type); 1534 1535 p1 = (p + data_len); 1536 STREAM_TO_UINT8 (rssi, p1); 1537 1538 /* Save the info */ 1539 p_cur->inq_result_type = BTM_INQ_RESULT_BLE; 1540 p_cur->ble_addr_type = addr_type; 1541 p_cur->rssi = rssi; 1542 1543 /* active scan, always wait until get scan_rsp to report the result */ 1544 if ((btm_cb.ble_ctr_cb.inq_var.scan_type == BTM_BLE_SCAN_MODE_ACTI && 1545 (evt_type == BTM_BLE_CONNECT_EVT || evt_type == BTM_BLE_DISCOVER_EVT))) 1546 { 1547 p_i->scan_rsp = FALSE; 1548 to_report = FALSE; 1549 } 1550 else 1551 p_i->scan_rsp = TRUE; 1552 1553 if (p_i->inq_count != p_inq->inq_counter) 1554 p_cur->device_type = BT_DEVICE_TYPE_BLE; 1555 else 1556 p_cur->device_type |= BT_DEVICE_TYPE_BLE; 1557 1558 if (evt_type != BTM_BLE_SCAN_RSP_EVT) 1559 p_cur->ble_evt_type = evt_type; 1560 1561 p_i->inq_count = p_inq->inq_counter; /* Mark entry for current inquiry */ 1562 1563 if (p_le_inq_cb->adv_len != 0) 1564 { 1565 if ((p_flag = BTM_CheckAdvData(p_le_inq_cb->adv_data_cache, BTM_BLE_AD_TYPE_FLAG, &len)) != NULL) 1566 p_cur->flag = * p_flag; 1567 } 1568 1569 /* if BR/EDR not supported is not set, assume is a DUMO device */ 1570 if ((p_cur->flag & BTM_BLE_BREDR_NOT_SPT) == 0) 1571 { 1572 BTM_TRACE_ERROR0("BR/EDR NOT support bit not set, treat as DUMO"); 1573 p_cur->device_type |= BT_DEVICE_TYPE_DUMO; 1574 } 1575 else 1576 { 1577 BTM_TRACE_DEBUG0("BR/EDR NOT SUPPORT bit set, LE only device"); 1578 } 1579 1580 return to_report; 1581 1582 } 1583 1584 /******************************************************************************* 1585 ** 1586 ** Function btm_send_sel_conn_callback 1587 ** 1588 ** Description send selection connection request callback. 1589 ** 1590 ** Parameters 1591 ** 1592 ** Returns void 1593 ** 1594 *******************************************************************************/ 1595 void btm_send_sel_conn_callback(BD_ADDR remote_bda, UINT8 evt_type, UINT8 *p_data, UINT8 addr_type) 1596 { 1597 UINT8 data_len, len; 1598 UINT8 *p_dev_name, remname[31] = {0}; 1599 1600 if (btm_cb.ble_ctr_cb.p_select_cback == NULL || 1601 /* non-connectable device */ 1602 (evt_type != BTM_BLE_EVT_CONN_ADV && evt_type != BTM_BLE_EVT_CONN_DIR_ADV)) 1603 return; 1604 1605 STREAM_TO_UINT8 (data_len, p_data); 1606 1607 /* get the device name if exist in ADV data */ 1608 if (data_len != 0) 1609 { 1610 p_dev_name = BTM_CheckAdvData(p_data, BTM_BLE_AD_TYPE_NAME_CMPL, &len); 1611 1612 if (p_dev_name == NULL) 1613 p_dev_name = BTM_CheckAdvData(p_data, BTM_BLE_AD_TYPE_NAME_SHORT, &len); 1614 1615 if (p_dev_name) 1616 memcpy(remname, p_dev_name, len); 1617 } 1618 /* allow connection */ 1619 if ((* btm_cb.ble_ctr_cb.p_select_cback)(remote_bda, remname)) 1620 { 1621 /* terminate selective connection, initiate connection */ 1622 btm_ble_initiate_select_conn(remote_bda); 1623 } 1624 } 1625 1626 /******************************************************************************* 1627 ** 1628 ** Function btm_ble_resolve_random_addr_cmpl 1629 ** 1630 ** Description resolve random address complete callback. 1631 ** 1632 ** Returns void 1633 ** 1634 *******************************************************************************/ 1635 static void btm_ble_resolve_random_addr_cmpl(void * p_rec, void *p) 1636 { 1637 tBTM_SEC_DEV_REC *match_rec = (tBTM_SEC_DEV_REC *) p_rec; 1638 UINT8 addr_type = BLE_ADDR_RANDOM; 1639 BD_ADDR bda; 1640 UINT8 *pp = (UINT8 *)p + 1; 1641 UINT8 evt_type; 1642 1643 BTM_TRACE_EVENT0 ("btm_ble_resolve_random_addr_cmpl "); 1644 1645 STREAM_TO_UINT8 (evt_type, pp); 1646 STREAM_TO_UINT8 (addr_type, pp); 1647 STREAM_TO_BDADDR (bda, pp); 1648 1649 if (match_rec) 1650 { 1651 BTM_TRACE_ERROR0("Random match"); 1652 memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN); 1653 memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN); 1654 } 1655 else 1656 { 1657 BTM_TRACE_ERROR0("Random unmatch"); 1658 } 1659 1660 btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, pp); 1661 1662 return; 1663 } 1664 1665 /******************************************************************************* 1666 ** 1667 ** Function btm_ble_process_adv_pkt 1668 ** 1669 ** Description This function is called when adv packet report events are 1670 ** received from the device. It updates the inquiry database. 1671 ** If the inquiry database is full, the oldest entry is discarded. 1672 ** 1673 ** Parameters 1674 ** 1675 ** Returns void 1676 ** 1677 *******************************************************************************/ 1678 void btm_ble_process_adv_pkt (UINT8 *p_data) 1679 { 1680 BD_ADDR bda; 1681 UINT8 evt_type = 0, *p = p_data; 1682 UINT8 addr_type = 0; 1683 1684 BTM_TRACE_EVENT0 ("btm_ble_process_adv_pkt "); 1685 1686 /* always get one device at a time */ 1687 p ++; 1688 1689 /* Extract inquiry results */ 1690 STREAM_TO_UINT8 (evt_type, p); 1691 STREAM_TO_UINT8 (addr_type, p); 1692 STREAM_TO_BDADDR (bda, p); 1693 1694 #ifdef BTM_BLE_PC_ADV_TEST_MODE // For general stack code (e.g. BTInsight testing), we simply do not define it to exclude or set it to TRUE to include 1695 if (BTM_BLE_PC_ADV_TEST_MODE) // For stack component, it is always defined and maps to a global variable g_bDraculaAdvertisingMode 1696 { 1697 if (btm_cb.ble_ctr_cb.p_scan_req_cback) 1698 (*btm_cb.ble_ctr_cb.p_scan_req_cback)(bda, addr_type, evt_type); 1699 } 1700 #endif 1701 1702 /* Only process the results if the inquiry is still active */ 1703 if (!btm_cb.btm_inq_vars.inq_active && 1704 (btm_cb.ble_ctr_cb.bg_conn_type != BTM_BLE_CONN_SELECTIVE || 1705 /* or selective auto connection is active */ 1706 btm_cb.ble_ctr_cb.p_select_cback == NULL)) 1707 return; 1708 1709 1710 #if SMP_INCLUDED == TRUE 1711 if (addr_type == BLE_ADDR_RANDOM && BTM_BLE_IS_RESOLVE_BDA(bda)) 1712 { 1713 btm_ble_resolve_random_addr(bda, btm_ble_resolve_random_addr_cmpl, p_data); 1714 } 1715 else 1716 #endif 1717 btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, p); 1718 } 1719 1720 /******************************************************************************* 1721 ** 1722 ** Function btm_ble_process_adv_pkt_cont 1723 ** 1724 ** Description This function is called after random address resolution is 1725 ** done, and proceed to process adv packet. 1726 ** 1727 ** Parameters 1728 ** 1729 ** Returns void 1730 ** 1731 *******************************************************************************/ 1732 static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt_type, UINT8 *p) 1733 { 1734 tINQ_DB_ENT *p_i; 1735 BOOLEAN to_report = FALSE; 1736 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1737 tBTM_INQ_RESULTS_CB *p_inq_results_cb = p_inq->p_inq_results_cb; 1738 tBTM_BLE_INQ_CB *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var; 1739 1740 p_i = btm_inq_db_find (bda); 1741 1742 /* Check if this address has already been processed for this inquiry */ 1743 if (btm_inq_find_bdaddr(bda)) 1744 { 1745 /* never been report as an LE device */ 1746 if ((p_i && 1747 (!(p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BLE) || 1748 /* scan repsonse to be updated */ 1749 (!p_i->scan_rsp))) 1750 || 1751 btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_OBSERVE) 1752 { 1753 BTM_TRACE_DEBUG0("update new BLE information "); 1754 to_report = TRUE; 1755 } 1756 else 1757 { 1758 BTM_TRACE_DEBUG0("LE in le_bd_db already"); 1759 /* if yes, skip it */ 1760 return; /* assumption: one result per event */ 1761 } 1762 } 1763 else /* not been processed int his round */ 1764 { 1765 BTM_TRACE_DEBUG0("new LE BD_ADDR"); 1766 to_report = TRUE; 1767 } 1768 1769 /* If existing entry, use that, else get a new one (possibly reusing the oldest) */ 1770 if (p_i == NULL) 1771 { 1772 if (btm_ble_is_discoverable(bda, evt_type, p)) 1773 { 1774 if ((p_i = btm_inq_db_new (bda)) != NULL) 1775 { 1776 p_inq->inq_cmpl_info.num_resp++; 1777 BTM_TRACE_DEBUG0("adv pkt process: new record is added into inq db"); 1778 to_report = TRUE; 1779 } 1780 else 1781 return; 1782 } 1783 else 1784 { 1785 BTM_TRACE_ERROR0("discard adv pkt"); 1786 return; 1787 } 1788 } 1789 else if (p_i->inq_count != p_inq->inq_counter) /* first time seen in this inquiry */ 1790 { 1791 p_inq->inq_cmpl_info.num_resp++; 1792 } 1793 1794 /* update the LE device information in inquiry database */ 1795 if (to_report) 1796 { 1797 to_report = btm_ble_update_inq_result(p_i, addr_type, evt_type, p); 1798 } 1799 1800 #if BTM_USE_INQ_RESULTS_FILTER == TRUE 1801 /* If the number of responses found and limited, issue a cancel inquiry */ 1802 if (p_inq->inqparms.max_resps && 1803 p_inq->inq_cmpl_info.num_resp == p_inq->inqparms.max_resps) 1804 { 1805 /* new device */ 1806 if (p_i == NULL || 1807 (/* assume a DUMO device, BR/EDR inquiry is always active */ 1808 p_i && p_i->inq_info.results.device_type == BT_DEVICE_TYPE_BLE && p_i->scan_rsp)) 1809 { 1810 BTM_TRACE_WARNING0("INQ RES: Extra Response Received...cancelling inquiry.."); 1811 1812 if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) ) 1813 btsnd_hcic_inq_cancel(); 1814 1815 /* stop LE scan now */ 1816 btm_ble_stop_scan(); 1817 1818 #if BTM_BUSY_LEVEL_CHANGE_INCLUDED == TRUE 1819 btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT); 1820 #endif 1821 } 1822 } 1823 #endif 1824 1825 /* background connection in selective connection mode */ 1826 if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE) 1827 { 1828 btm_send_sel_conn_callback(bda, evt_type, p, addr_type); 1829 } 1830 else if (p_inq_results_cb && to_report) 1831 { 1832 BTM_TRACE_DEBUG0("BTMINQ LE: Found devices, send callback btm_inqrslt_cb"); 1833 1834 if (p_inq->inq_active) 1835 (p_inq_results_cb)((tBTM_INQ_RESULTS *) &p_i->inq_info.results, p_le_inq_cb->adv_data_cache); 1836 } 1837 } 1838 1839 /******************************************************************************* 1840 ** 1841 ** Function btm_ble_stop_scan 1842 ** 1843 ** Description Stop the BLE scan. 1844 ** 1845 ** Returns void 1846 ** 1847 *******************************************************************************/ 1848 void btm_ble_stop_scan(void) 1849 { 1850 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 1851 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1852 1853 BTM_TRACE_EVENT0 ("btm_ble_stop_scan "); 1854 1855 btu_stop_timer (&p_cb->inq_timer_ent); 1856 1857 /* Clear the inquiry callback if set */ 1858 p_cb->scan_type = BTM_BLE_SCAN_MODE_NONE; 1859 p_cb->proc_mode = BTM_BLE_INQUIRY_NONE; 1860 1861 /* stop discovery now */ 1862 btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE); 1863 1864 /* If we have a callback registered for inquiry complete, call it */ 1865 BTM_TRACE_DEBUG2 ("BTM Inq Compl Callback: status 0x%02x, num results %d", 1866 p_inq->inq_cmpl_info.status, p_inq->inq_cmpl_info.num_resp); 1867 1868 btm_update_scanner_filter_policy(SP_ADV_ALL); 1869 1870 btm_process_inq_complete(HCI_SUCCESS, (UINT8)(p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK)); 1871 1872 } 1873 1874 /******************************************************************************* 1875 ** 1876 ** Function btm_ble_stop_adv 1877 ** 1878 ** Description Stop the BLE advertising. 1879 ** 1880 ** Returns void 1881 ** 1882 *******************************************************************************/ 1883 void btm_ble_stop_adv(void) 1884 { 1885 BTM_TRACE_EVENT0 (" btm_ble_stop_adv"); 1886 1887 if (btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE)) 1888 { 1889 btm_cb.ble_ctr_cb.inq_var.adv_mode = BTM_BLE_ADV_DISABLE; 1890 } 1891 } 1892 1893 /******************************************************************************* 1894 ** 1895 ** Function btm_ble_timeout 1896 ** 1897 ** Description Called when BTM BLE inquiry timer expires 1898 ** 1899 ** Returns void 1900 ** 1901 *******************************************************************************/ 1902 void btm_ble_timeout(TIMER_LIST_ENT *p_tle) 1903 { 1904 BTM_TRACE_EVENT0 ("btm_ble_timeout"); 1905 1906 switch (p_tle->event) 1907 { 1908 case BTU_TTYPE_BLE_INQUIRY: 1909 btm_ble_stop_scan(); 1910 break; 1911 1912 case BTU_TTYPE_BLE_GAP_LIM_DISC: 1913 /* lim_timeout expiried, limited discovery should exit now */ 1914 btm_ble_update_adv_flag(BTM_BLE_NON_LIMIT_DISC_FLAG); 1915 1916 btm_ble_stop_adv(); 1917 break; 1918 1919 case BTU_TTYPE_BLE_RANDOM_ADDR: 1920 if (btm_cb.ble_ctr_cb.inq_var.adv_mode == BTM_BLE_ADV_ENABLE && 1921 btm_cb.ble_ctr_cb.inq_var.own_addr_type == BLE_ADDR_RANDOM) 1922 { 1923 /* refresh the random addr */ 1924 btm_gen_resolvable_private_addr(); 1925 } 1926 break; 1927 1928 } 1929 } 1930 1931 /******************************************************************************* 1932 ** 1933 ** Function btm_ble_connected 1934 ** 1935 ** Description This function is when a LE connection to the peer device is 1936 ** establsihed 1937 ** 1938 ** Returns void 1939 ** 1940 *******************************************************************************/ 1941 void btm_ble_connected (UINT8 *bda, UINT16 handle, UINT8 enc_mode, UINT8 role) 1942 { 1943 tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bda); 1944 tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; 1945 1946 BTM_TRACE_EVENT0 ("btm_ble_connected"); 1947 1948 /* Commenting out trace due to obf/compilation problems. 1949 */ 1950 #if (BT_USE_TRACES == TRUE) 1951 if (p_dev_rec) 1952 { 1953 BTM_TRACE_EVENT4 ("Security Manager: btm_sec_connected : handle:%d enc_mode:%d bda:%x RName:%s", 1954 handle, enc_mode, 1955 (bda[2]<<24)+(bda[3]<<16)+(bda[4]<<8)+bda[5], 1956 p_dev_rec->sec_bd_name); 1957 1958 BTM_TRACE_DEBUG1 ("btm_ble_connected sec_flags=0x%x",p_dev_rec->sec_flags); 1959 } 1960 else 1961 { 1962 BTM_TRACE_EVENT3 ("Security Manager: btm_sec_connected: handle:%d enc_mode:%d bda:%x ", 1963 handle, enc_mode, 1964 (bda[2]<<24)+(bda[3]<<16)+(bda[4]<<8)+bda[5]); 1965 } 1966 #endif 1967 1968 if (!p_dev_rec) 1969 { 1970 /* There is no device record for new connection. Allocate one */ 1971 p_dev_rec = btm_sec_alloc_dev (bda); 1972 } 1973 else /* Update the timestamp for this device */ 1974 { 1975 p_dev_rec->timestamp = btm_cb.dev_rec_count++; 1976 } 1977 1978 p_dev_rec->device_type = BT_DEVICE_TYPE_BLE; 1979 p_dev_rec->hci_handle = handle; 1980 if (role == HCI_ROLE_MASTER) 1981 p_dev_rec->role_master = TRUE; 1982 1983 p_cb->inq_var.adv_mode = BTM_BLE_ADV_DISABLE; 1984 1985 return; 1986 } 1987 1988 /******************************************************************************* 1989 ** 1990 ** Function btm_ble_read_remote_features_complete 1991 ** 1992 ** Description This function is called when the command complete message 1993 ** is received from the HCI for the read LE remote feature supported 1994 ** complete event. 1995 ** 1996 ** Returns void 1997 ** 1998 *******************************************************************************/ 1999 void btm_ble_read_remote_features_complete(UINT8 *p) 2000 { 2001 tACL_CONN *p_acl_cb = &btm_cb.acl_db[0]; 2002 UINT8 size; 2003 UINT16 handle; 2004 int xx, yy; 2005 tBTM_SEC_DEV_REC *p_dev_rec; 2006 2007 BTM_TRACE_EVENT0 ("btm_ble_read_remote_features_complete "); 2008 2009 STREAM_TO_UINT16 (handle, p); 2010 STREAM_TO_UINT8 (size, p); 2011 2012 /* Look up the connection by handle and copy features */ 2013 for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_acl_cb++) 2014 { 2015 if ((p_acl_cb->in_use) && (p_acl_cb->hci_handle == handle)) 2016 { 2017 for (yy = 0; yy < BD_FEATURES_LEN; yy++) 2018 STREAM_TO_UINT8 (p_acl_cb->features[yy], p); 2019 2020 p_dev_rec = btm_find_dev_by_handle (handle); 2021 if (!p_dev_rec) 2022 { 2023 /* Get a new device; might be doing dedicated bonding */ 2024 p_dev_rec = btm_find_or_alloc_dev (p_acl_cb->remote_addr); 2025 } 2026 2027 memcpy (p_dev_rec->features, p_acl_cb->features, BD_FEATURES_LEN); 2028 break; 2029 } 2030 } 2031 } 2032 2033 /******************************************************************************* 2034 ** 2035 ** Function btm_ble_write_adv_enable_complete 2036 ** 2037 ** Description This function process the write adv enable command complete. 2038 ** 2039 ** Returns void 2040 ** 2041 *******************************************************************************/ 2042 void btm_ble_write_adv_enable_complete(UINT8 * p) 2043 { 2044 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 2045 2046 /* if write adv enable/disbale not succeed */ 2047 if (*p != HCI_SUCCESS) 2048 { 2049 /* toggle back the adv mode */ 2050 p_cb->adv_mode = !p_cb->adv_mode; 2051 } 2052 } 2053 /******************************************************************************* 2054 ** 2055 ** Function btm_ble_init 2056 ** 2057 ** Description Initialize the control block variable values. 2058 ** 2059 ** Returns void 2060 ** 2061 *******************************************************************************/ 2062 void btm_ble_init (void) 2063 { 2064 tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; 2065 2066 BTM_TRACE_EVENT0 ("btm_ble_init "); 2067 2068 memset(p_cb, 0, sizeof(tBTM_BLE_CB)); 2069 2070 p_cb->inq_var.adv_mode = BTM_BLE_ADV_DISABLE; 2071 p_cb->inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE; 2072 p_cb->inq_var.adv_chnl_map = BTM_BLE_DEFAULT_ADV_CHNL_MAP; 2073 p_cb->inq_var.afp = BTM_BLE_DEFAULT_AFP; 2074 p_cb->inq_var.sfp = BTM_BLE_DEFAULT_SFP; 2075 p_cb->inq_var.connectable_mode = BTM_BLE_NON_CONNECTABLE; 2076 p_cb->inq_var.discoverable_mode = BTM_BLE_NON_DISCOVERABLE; 2077 2078 /* for background connection, reset connection params to be undefined */ 2079 p_cb->scan_int = p_cb->scan_win = BTM_BLE_CONN_PARAM_UNDEF; 2080 2081 p_cb->inq_var.evt_type = BTM_BLE_UNKNOWN_EVT; 2082 } 2083 2084 #endif /* BLE_INCLUDED */ 2085
