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 #if (BLE_INCLUDED == TRUE) 37 #include "gattdefs.h" 38 39 #define BTM_BLE_NAME_SHORT 0x01 40 #define BTM_BLE_NAME_CMPL 0x02 41 42 #define BTM_BLE_FILTER_TARGET_UNKNOWN 0xff 43 #define BTM_BLE_POLICY_UNKNOWN 0xff 44 45 #define BTM_EXT_BLE_RMT_NAME_TIMEOUT 30 46 47 /******************************************************************************* 48 ** Local functions 49 *******************************************************************************/ 50 static void btm_ble_update_adv_flag(UINT8 flag); 51 static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt_type, UINT8 *p); 52 static UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst, tBTM_BLE_ADV_DATA *p_data); 53 static UINT8 btm_set_conn_mode_adv_init_addr(tBTM_BLE_INQ_CB *p_cb, 54 BD_ADDR_PTR p_addr_ptr, 55 tBLE_ADDR_TYPE *p_init_addr_type, 56 tBLE_ADDR_TYPE *p_own_addr_type); 57 static BOOLEAN btm_ble_start_adv(void); 58 static tBTM_STATUS btm_ble_stop_adv(void); 59 60 61 62 /******************************************************************************* 63 ** 64 ** Function BTM_BleReset 65 ** 66 ** Description This function is called to reset ULP controller. 67 ** 68 ** Parameters None. 69 ** 70 ** Returns void 71 ** 72 *******************************************************************************/ 73 void BTM_BleReset(void) 74 { 75 btsnd_hcic_ble_reset(); 76 } 77 /******************************************************************************* 78 ** 79 ** Function BTM_BleUpdateAdvWhitelist 80 ** 81 ** Description Add or remove device from advertising white list 82 ** 83 ** Returns void 84 ** 85 *******************************************************************************/ 86 BOOLEAN BTM_BleUpdateAdvWhitelist(BOOLEAN add_remove, BD_ADDR remote_bda) 87 { 88 return FALSE; 89 } 90 91 /******************************************************************************* 92 ** 93 ** Function BTM_BleUpdateAdvFilterPolicy 94 ** 95 ** Description This function update the filter policy of advertiser. 96 ** 97 ** Parameter adv_policy: advertising filter policy 98 ** 99 ** Return void 100 *******************************************************************************/ 101 void BTM_BleUpdateAdvFilterPolicy(tBTM_BLE_AFP adv_policy) 102 { 103 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 104 tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC; 105 BD_ADDR p_addr_ptr= {0}; 106 UINT8 adv_mode = p_cb->adv_mode; 107 108 BTM_TRACE_EVENT0 ("BTM_BleUpdateAdvFilterPolicy"); 109 110 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 111 return; 112 113 if (p_cb->afp != adv_policy) 114 { 115 p_cb->afp = adv_policy; 116 117 /* if adv active, stop and restart */ 118 btm_ble_stop_adv (); 119 120 if (p_cb->connectable_mode & BTM_BLE_CONNECTABLE) 121 p_cb->evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type, &p_cb->adv_addr_type); 122 123 btsnd_hcic_ble_write_adv_params (p_cb->adv_interval_min, 124 p_cb->adv_interval_max, 125 p_cb->evt_type, 126 p_cb->adv_addr_type, 127 init_addr_type, 128 p_addr_ptr, 129 p_cb->adv_chnl_map, 130 p_cb->afp); 131 132 if (adv_mode == BTM_BLE_ADV_ENABLE) 133 btm_ble_start_adv (); 134 135 } 136 } 137 /******************************************************************************* 138 ** 139 ** Function BTM_BleObserve 140 ** 141 ** Description This procedure keep the device listening for advertising 142 ** events from a broadcast device. 143 ** 144 ** Parameters start: start or stop observe. 145 ** white_list: use white list in observer mode or not. 146 ** 147 ** Returns void 148 ** 149 *******************************************************************************/ 150 tBTM_STATUS BTM_BleObserve(BOOLEAN start, UINT8 duration, 151 tBTM_INQ_RESULTS_CB *p_results_cb, tBTM_CMPL_CB *p_cmpl_cb) 152 { 153 tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var; 154 tBTM_STATUS status = BTM_NO_RESOURCES; 155 156 BTM_TRACE_EVENT1 ("BTM_BleObserve : scan_type:%d",btm_cb.btm_inq_vars.scan_type); 157 158 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 159 return BTM_ILLEGAL_VALUE; 160 161 if (start) 162 { 163 /* shared inquiry database, do not allow observe if any inquiry is active */ 164 if (btm_cb.btm_inq_vars.inq_active || p_inq->proc_mode != BTM_BLE_INQUIRY_NONE) 165 { 166 /*check if an interleave scan is already in progress*/ 167 if(btm_cb.btm_inq_vars.scan_type == INQ_GENERAL 168 && btm_cb.btm_inq_vars.p_inq_results_cb != NULL) 169 { 170 BTM_TRACE_EVENT0 ("BTM_BleObserve general inq in progress, redirecting the results"); 171 btm_cb.btm_inq_vars.p_inq_ble_results_cb = p_results_cb; 172 btm_cb.btm_inq_vars.p_inq_ble_cmpl_cb = p_cmpl_cb; 173 return BTM_SUCCESS; 174 } 175 else 176 return BTM_BUSY; 177 } 178 btm_cb.btm_inq_vars.scan_type = INQ_LE_OBSERVE; 179 btm_cb.btm_inq_vars.p_inq_ble_results_cb = p_results_cb; 180 btm_cb.btm_inq_vars.p_inq_ble_cmpl_cb = p_cmpl_cb; 181 p_inq->scan_type = (p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE) ? BTM_BLE_SCAN_MODE_ACTI: p_inq->scan_type; 182 183 /* allow config scanning type */ 184 if (btsnd_hcic_ble_set_scan_params (p_inq->scan_type, 185 (UINT16)(!p_inq->scan_interval ? BTM_BLE_GAP_DISC_SCAN_INT : p_inq->scan_interval), 186 (UINT16)(!p_inq->scan_window ? BTM_BLE_GAP_DISC_SCAN_WIN : p_inq->scan_window), 187 BLE_ADDR_PUBLIC, 188 BTM_BLE_DEFAULT_SFP)) /* assume observe always not using white list */ 189 { 190 /* start scan, disable duplicate filtering */ 191 if (btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_ENABLE, BTM_BLE_DUPLICATE_DISABLE)) 192 { 193 status = BTM_SUCCESS; 194 p_inq->proc_mode = BTM_BLE_OBSERVE; 195 btm_cb.btm_inq_vars.inq_active |= BTM_LE_OBSERVE_ACTIVE; 196 197 if (duration != 0) 198 { 199 /* start inquiry timer */ 200 btu_start_timer (&p_inq->inq_timer_ent, BTU_TTYPE_BLE_INQUIRY, duration); 201 } 202 } 203 } 204 } 205 else/*start = 0*/ 206 { 207 if(btm_cb.btm_inq_vars.scan_type == INQ_GENERAL) 208 { 209 //Dont stop the scan. Just nullify the cbs 210 btm_cb.btm_inq_vars.p_inq_ble_results_cb = NULL; 211 btm_cb.btm_inq_vars.p_inq_ble_cmpl_cb = NULL; 212 } 213 else if (p_inq->proc_mode == BTM_BLE_OBSERVE) 214 { 215 btm_cb.btm_inq_vars.inq_active &= ~BTM_LE_OBSERVE_ACTIVE; 216 btm_ble_stop_scan(); 217 } 218 } 219 220 return status; 221 } 222 223 /******************************************************************************* 224 ** 225 ** Function BTM_BleBroadcast 226 ** 227 ** Description This function is to start or stop broadcasting. 228 ** 229 ** Parameters start: start or stop broadcasting. 230 ** 231 ** Returns status. 232 ** 233 *******************************************************************************/ 234 tBTM_STATUS BTM_BleBroadcast(BOOLEAN start) 235 { 236 tBTM_STATUS status = BTM_NO_RESOURCES; 237 tBTM_LE_RANDOM_CB *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb; 238 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 239 UINT8 evt_type = p_cb->scan_rsp ? BTM_BLE_DISCOVER_EVT: BTM_BLE_NON_CONNECT_EVT; 240 241 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 242 return BTM_ILLEGAL_VALUE; 243 244 #ifdef BTM_BLE_PC_ADV_TEST_MODE 245 if (BTM_BLE_PC_ADV_TEST_MODE) 246 { 247 evt_type = p_cb->scan_rsp ? BTM_BLE_CONNECT_EVT: BTM_BLE_NON_CONNECT_EVT; 248 } 249 #endif 250 251 if (start && p_cb->adv_mode == BTM_BLE_ADV_DISABLE) 252 { 253 /* update adv params */ 254 if (!btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min : BTM_BLE_GAP_ADV_INT), 255 (UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max : BTM_BLE_GAP_ADV_INT), 256 evt_type, 257 p_addr_cb->own_addr_type, 258 p_cb->direct_bda.type, 259 p_cb->direct_bda.bda, 260 p_cb->adv_chnl_map, 261 p_cb->afp)) 262 263 status = BTM_NO_RESOURCES; 264 else 265 p_cb->evt_type = evt_type; 266 267 status = btm_ble_start_adv (); 268 } 269 else if (!start && p_cb->adv_mode == BTM_BLE_ADV_ENABLE) 270 { 271 status = btm_ble_stop_adv(); 272 } 273 else 274 { 275 status = BTM_WRONG_MODE; 276 BTM_TRACE_ERROR2("Can not %s Broadcast, device %s in Broadcast mode", 277 (start ? "Start" : "Stop"), (start ? "alerady" :"not")); 278 } 279 return status; 280 } 281 282 /******************************************************************************* 283 ** 284 ** Function BTM_RegisterScanReqEvt 285 ** 286 ** Description This function is called to register a scan request callback 287 ** on the advertiser. 288 ** 289 ** Parameters p_scan_req_cback: scan request callback. If NULL, remove the 290 ** registration. 291 ** 292 ** Returns void 293 ** 294 *******************************************************************************/ 295 void BTM_RegisterScanReqEvt(tBTM_BLE_SCAN_REQ_CBACK *p_scan_req_cback) 296 { 297 #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 */ 298 if (BTM_BLE_PC_ADV_TEST_MODE) /* For stack component, it is always defined and maps to a global variable g_bDraculaAdvertisingMode */ 299 { 300 tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; 301 p_cb->p_scan_req_cback = p_scan_req_cback; 302 } 303 #endif 304 } 305 306 /******************************************************************************* 307 ** 308 ** Function BTM_BleSetBgConnType 309 ** 310 ** Description This function is called to set BLE connectable mode for a 311 ** peripheral device. 312 ** 313 ** Parameters bg_conn_type: it can be auto connection, or selective connection. 314 ** p_select_cback: callback function when selective connection procedure 315 ** is being used. 316 ** 317 ** Returns void 318 ** 319 *******************************************************************************/ 320 BOOLEAN BTM_BleSetBgConnType(tBTM_BLE_CONN_TYPE bg_conn_type, 321 tBTM_BLE_SEL_CBACK *p_select_cback) 322 { 323 BOOLEAN started = TRUE; 324 325 BTM_TRACE_EVENT0 ("BTM_BleSetBgConnType "); 326 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 327 return FALSE; 328 329 if (btm_cb.ble_ctr_cb.bg_conn_type != bg_conn_type) 330 { 331 switch (bg_conn_type) 332 { 333 case BTM_BLE_CONN_AUTO: 334 btm_ble_start_auto_conn(TRUE); 335 break; 336 337 case BTM_BLE_CONN_SELECTIVE: 338 if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO) 339 { 340 btm_ble_start_auto_conn(FALSE); 341 } 342 started = btm_ble_start_select_conn(TRUE, p_select_cback); 343 break; 344 345 case BTM_BLE_CONN_NONE: 346 if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO) 347 { 348 btm_ble_start_auto_conn(FALSE); 349 } 350 else if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE) 351 { 352 btm_ble_start_select_conn(FALSE, NULL); 353 } 354 started = TRUE; 355 break; 356 357 default: 358 BTM_TRACE_ERROR1("invalid bg connection type : %d ", bg_conn_type); 359 started = FALSE; 360 break; 361 } 362 363 if (started) 364 btm_cb.ble_ctr_cb.bg_conn_type = bg_conn_type; 365 } 366 return started; 367 } 368 369 /******************************************************************************* 370 ** 371 ** Function BTM_BleUpdateBgConnDev 372 ** 373 ** Description This function is called to add or remove a device into/from 374 ** background connection procedure. The background connection 375 * procedure is decided by the background connection type, it can be 376 * auto connection, or selective connection. 377 ** 378 ** Parameters add_remove: TRUE to add; FALSE to remove. 379 ** remote_bda: device address to add/remove. 380 ** 381 ** Returns void 382 ** 383 *******************************************************************************/ 384 BOOLEAN BTM_BleUpdateBgConnDev(BOOLEAN add_remove, BD_ADDR remote_bda) 385 { 386 BOOLEAN ret = TRUE; 387 UINT8 dev_wl_type = 0; 388 BTM_TRACE_EVENT0 (" BTM_BleUpdateBgConnDev"); 389 390 /* update white list */ 391 ret = btm_update_bg_conn_list(add_remove, remote_bda, &dev_wl_type); 392 393 btm_update_dev_to_white_list(add_remove, remote_bda, dev_wl_type); 394 395 return ret; 396 } 397 398 /******************************************************************************* 399 ** 400 ** Function BTM_BleSetConnMode 401 ** 402 ** Description This function is called to set BLE connectable mode for a 403 ** peripheral device. 404 ** 405 ** Parameters directed: is directed connectable mode, or non-directed. 406 ** p_dir_bda: connectable direct initiator's LE device address 407 ** 408 ** Returns void 409 ** 410 *******************************************************************************/ 411 tBTM_STATUS BTM_BleSetConnMode(BOOLEAN is_directed) 412 { 413 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 414 415 BTM_TRACE_EVENT1 ("BTM_BleSetConnMode is_directed = %d ", is_directed); 416 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 417 return BTM_ILLEGAL_VALUE; 418 419 p_cb->directed_conn = is_directed; 420 return btm_ble_set_connectability( p_cb->connectable_mode); 421 422 } 423 424 /******************************************************************************* 425 ** 426 ** Function btm_set_conn_mode_adv_init_addr 427 ** 428 ** Description set initator address type and local address type based on adv 429 ** mode. 430 ** 431 ** 432 *******************************************************************************/ 433 static UINT8 btm_set_conn_mode_adv_init_addr(tBTM_BLE_INQ_CB *p_cb, 434 BD_ADDR_PTR p_addr_ptr, 435 tBLE_ADDR_TYPE *p_init_addr_type, 436 tBLE_ADDR_TYPE *p_own_addr_type) 437 { 438 UINT8 evt_type; 439 440 if ( p_cb->directed_conn) 441 { 442 /* direct adv mode does not have privacy if privacy 443 is not enabled or no reconn addr config */ 444 *p_own_addr_type = BLE_ADDR_PUBLIC; 445 *p_init_addr_type = p_cb->direct_bda.type; 446 memcpy(p_addr_ptr, p_cb->direct_bda.bda, BD_ADDR_LEN); 447 evt_type = BTM_BLE_CONNECT_DIR_EVT; 448 } 449 else /* undirect adv mode */ 450 { 451 evt_type = BTM_BLE_CONNECT_EVT; 452 } 453 454 return evt_type; 455 456 } 457 458 /******************************************************************************* 459 ** 460 ** Function BTM_BleSetAdvParams 461 ** 462 ** Description This function is called to set advertising parameters. 463 ** 464 ** Parameters adv_int_min: minimum advertising interval 465 ** adv_int_max: maximum advertising interval 466 ** p_dir_bda: connectable direct initiator's LE device address 467 ** chnl_map: advertising channel map. 468 ** 469 ** Returns void 470 ** 471 *******************************************************************************/ 472 tBTM_STATUS BTM_BleSetAdvParams(UINT16 adv_int_min, UINT16 adv_int_max, 473 tBLE_BD_ADDR *p_dir_bda, 474 tBTM_BLE_ADV_CHNL_MAP chnl_map) 475 { 476 tBTM_LE_RANDOM_CB *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb; 477 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 478 tBTM_STATUS status = BTM_SUCCESS; 479 BD_ADDR p_addr_ptr = {0}; 480 tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC; 481 tBLE_ADDR_TYPE own_addr_type = p_addr_cb->own_addr_type; 482 UINT8 adv_mode = p_cb->adv_mode; 483 484 BTM_TRACE_EVENT0 ("BTM_BleSetAdvParams"); 485 486 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 487 return BTM_ILLEGAL_VALUE; 488 489 if (!BTM_BLE_VALID_PRAM(adv_int_min, BTM_BLE_ADV_INT_MIN, BTM_BLE_ADV_INT_MAX) || 490 !BTM_BLE_VALID_PRAM(adv_int_max, BTM_BLE_ADV_INT_MIN, BTM_BLE_ADV_INT_MAX)) 491 { 492 return BTM_ILLEGAL_VALUE; 493 } 494 495 p_cb->adv_interval_min = adv_int_min; 496 p_cb->adv_interval_max = adv_int_max; 497 p_cb->adv_chnl_map = chnl_map; 498 499 if (p_dir_bda) 500 { 501 memcpy(&p_cb->direct_bda, p_dir_bda, sizeof(tBLE_BD_ADDR)); 502 } 503 504 BTM_TRACE_EVENT0 ("update params for an active adv"); 505 506 btm_ble_stop_adv(); 507 508 if (p_cb->connectable_mode & BTM_BLE_CONNECTABLE) 509 p_cb->evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type, &own_addr_type); 510 511 /* update adv params */ 512 btsnd_hcic_ble_write_adv_params (p_cb->adv_interval_min, 513 p_cb->adv_interval_max, 514 p_cb->evt_type, 515 own_addr_type, 516 init_addr_type, 517 p_addr_ptr, 518 p_cb->adv_chnl_map, 519 p_cb->afp); 520 521 if (adv_mode == BTM_BLE_ADV_ENABLE) 522 btm_ble_start_adv(); 523 524 return status; 525 } 526 527 /******************************************************************************* 528 ** 529 ** Function BTM_BleReadAdvParams 530 ** 531 ** Description This function is called to set advertising parameters. 532 ** 533 ** Parameters adv_int_min: minimum advertising interval 534 ** adv_int_max: maximum advertising interval 535 ** p_dir_bda: connectable direct initiator's LE device address 536 ** chnl_map: advertising channel map. 537 ** 538 ** Returns void 539 ** 540 *******************************************************************************/ 541 void BTM_BleReadAdvParams (UINT16 *adv_int_min, UINT16 *adv_int_max, 542 tBLE_BD_ADDR *p_dir_bda, tBTM_BLE_ADV_CHNL_MAP *p_chnl_map) 543 { 544 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 545 546 BTM_TRACE_EVENT0 ("BTM_BleReadAdvParams "); 547 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 548 return ; 549 550 *adv_int_min = p_cb->adv_interval_min; 551 *adv_int_max = p_cb->adv_interval_max; 552 *p_chnl_map = p_cb->adv_chnl_map; 553 554 if (p_dir_bda != NULL) 555 { 556 memcpy(p_dir_bda, &p_cb->direct_bda, sizeof(tBLE_BD_ADDR)); 557 } 558 } 559 560 /******************************************************************************* 561 ** 562 ** Function BTM_BleSetScanParams 563 ** 564 ** Description This function is called to set Scan parameters. 565 ** 566 ** Parameters adv_int_min: minimum advertising interval 567 ** adv_int_max: maximum advertising interval 568 ** p_dir_bda: connectable direct initiator's LE device address 569 ** chnl_map: advertising channel map. 570 ** scan_type: active scan or passive scan 571 ** 572 ** Returns void 573 ** 574 *******************************************************************************/ 575 void BTM_BleSetScanParams(UINT16 scan_interval, UINT16 scan_window, tBTM_BLE_SCAN_MODE scan_mode) 576 { 577 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 578 579 BTM_TRACE_EVENT0 (" BTM_BleSetScanParams"); 580 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 581 return ; 582 583 if (BTM_BLE_VALID_PRAM(scan_interval, BTM_BLE_SCAN_INT_MIN, BTM_BLE_SCAN_INT_MAX) && 584 BTM_BLE_VALID_PRAM(scan_window, BTM_BLE_SCAN_WIN_MIN, BTM_BLE_SCAN_WIN_MAX) && 585 (scan_mode == BTM_BLE_SCAN_MODE_ACTI || scan_mode == BTM_BLE_SCAN_MODE_PASS)) 586 { 587 p_cb->scan_type = scan_mode; 588 589 if (BTM_BLE_CONN_PARAM_UNDEF != scan_interval) 590 p_cb->scan_interval = scan_interval; 591 592 if (BTM_BLE_CONN_PARAM_UNDEF != scan_window) 593 p_cb->scan_window = scan_window; 594 } 595 else 596 { 597 BTM_TRACE_ERROR2("Illegal params: scan_interval = %d scan_window = %d", 598 scan_interval, scan_window); 599 } 600 601 } 602 603 /******************************************************************************* 604 ** 605 ** Function BTM_BleWriteScanRsp 606 ** 607 ** Description This function is called to write LE scan response. 608 ** 609 ** Parameters: p_scan_rsp: scan response information. 610 ** 611 ** Returns void 612 ** 613 *******************************************************************************/ 614 tBTM_STATUS BTM_BleWriteScanRsp(tBTM_BLE_AD_MASK data_mask, tBTM_BLE_ADV_DATA *p_data) 615 { 616 tBTM_STATUS status = BTM_NO_RESOURCES; 617 UINT8 rsp_data[BTM_BLE_AD_DATA_LEN], 618 *p = rsp_data; 619 620 BTM_TRACE_EVENT0 (" BTM_BleWriteScanRsp"); 621 622 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 623 return BTM_ILLEGAL_VALUE; 624 625 memset(rsp_data, 0, BTM_BLE_AD_DATA_LEN); 626 btm_ble_build_adv_data(&data_mask, &p, p_data); 627 628 if (btsnd_hcic_ble_set_scan_rsp_data((UINT8)(p - rsp_data), rsp_data)) 629 { 630 status = BTM_SUCCESS; 631 632 if (data_mask != 0) 633 btm_cb.ble_ctr_cb.inq_var.scan_rsp = TRUE; 634 else 635 btm_cb.ble_ctr_cb.inq_var.scan_rsp = FALSE; 636 } 637 else 638 status = BTM_ILLEGAL_VALUE; 639 640 return status; 641 } 642 643 /******************************************************************************* 644 ** 645 ** Function BTM_BleWriteAdvData 646 ** 647 ** Description This function is called to write advertising data. 648 ** 649 ** Parameters: None. 650 ** 651 ** Returns void 652 ** 653 *******************************************************************************/ 654 tBTM_STATUS BTM_BleWriteAdvData(tBTM_BLE_AD_MASK data_mask, tBTM_BLE_ADV_DATA *p_data) 655 { 656 tBTM_BLE_LOCAL_ADV_DATA *p_cb_data = &btm_cb.ble_ctr_cb.inq_var.adv_data; 657 UINT8 *p; 658 UINT16 mask = data_mask; 659 660 BTM_TRACE_EVENT0 ("BTM_BleWriteAdvData "); 661 662 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 663 return BTM_ILLEGAL_VALUE; 664 665 memset(p_cb_data, 0, sizeof(tBTM_BLE_LOCAL_ADV_DATA)); 666 p = p_cb_data->ad_data; 667 p_cb_data->data_mask = data_mask; 668 669 p_cb_data->p_flags = btm_ble_build_adv_data(&mask, &p, p_data); 670 671 p_cb_data->p_pad = p; 672 673 if (data_mask != 0) 674 { 675 BTM_TRACE_ERROR0("Partial data write into ADV"); 676 } 677 678 p_cb_data->data_mask &= ~mask; 679 680 if (btsnd_hcic_ble_set_adv_data((UINT8)(p_cb_data->p_pad - p_cb_data->ad_data), 681 p_cb_data->ad_data)) 682 return BTM_SUCCESS; 683 else 684 return BTM_NO_RESOURCES; 685 686 } 687 688 /******************************************************************************* 689 ** 690 ** Function BTM_CheckAdvData 691 ** 692 ** Description This function is called to get ADV data for a specific type. 693 ** 694 ** Parameters p_adv - pointer of ADV data 695 ** type - finding ADV data type 696 ** p_length - return the length of ADV data not including type 697 ** 698 ** Returns pointer of ADV data 699 ** 700 *******************************************************************************/ 701 UINT8 *BTM_CheckAdvData( UINT8 *p_adv, UINT8 type, UINT8 *p_length) 702 { 703 UINT8 *p = p_adv; 704 UINT8 length; 705 UINT8 adv_type; 706 BTM_TRACE_API1("BTM_CheckAdvData type=0x%02X", type); 707 708 STREAM_TO_UINT8(length, p); 709 710 while ( length && (p - p_adv <= BTM_BLE_CACHE_ADV_DATA_MAX)) 711 { 712 STREAM_TO_UINT8(adv_type, p); 713 714 if ( adv_type == type ) 715 { 716 /* length doesn't include itself */ 717 *p_length = length - 1; /* minus the length of type */ 718 return p; 719 } 720 p += length - 1; /* skip the length of data */ 721 STREAM_TO_UINT8(length, p); 722 } 723 724 *p_length = 0; 725 return NULL; 726 } 727 728 /******************************************************************************* 729 ** 730 ** Function btm_ble_build_adv_data 731 ** 732 ** Description This function is called build the adv data and rsp data. 733 *******************************************************************************/ 734 static UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst, tBTM_BLE_ADV_DATA *p_data) 735 { 736 UINT16 data_mask = *p_data_mask; 737 UINT8 *p = *p_dst, 738 *p_flag = NULL; 739 UINT16 len = BTM_BLE_AD_DATA_LEN, cp_len = 0; 740 UINT8 i = 0; 741 tBTM_BLE_PROP_ELEM *p_elem; 742 743 BTM_TRACE_EVENT0 (" btm_ble_build_adv_data"); 744 745 /* build the adv data structure and build the data string */ 746 if (data_mask) 747 { 748 /* flags */ 749 if (data_mask & BTM_BLE_AD_BIT_FLAGS) 750 { 751 *p++ = 2; 752 *p++ = BTM_BLE_AD_TYPE_FLAG; 753 p_flag = p; 754 if (p_data) 755 *p++ = p_data->flag; 756 else 757 *p++ = 0; 758 759 len -= 3; 760 761 data_mask &= ~BTM_BLE_AD_BIT_FLAGS; 762 } 763 /* appearance data */ 764 if (len > 3 && data_mask & BTM_BLE_AD_BIT_APPEARANCE) 765 { 766 *p++ = 3; /* length */ 767 *p++ = BTM_BLE_AD_TYPE_APPEARANCE; 768 UINT16_TO_STREAM(p, p_data->appearance); 769 len -= 4; 770 771 data_mask &= ~BTM_BLE_AD_BIT_APPEARANCE; 772 } 773 /* device name */ 774 #if BTM_MAX_LOC_BD_NAME_LEN > 0 775 if (len > 2 && data_mask & BTM_BLE_AD_BIT_DEV_NAME) 776 { 777 if (strlen(btm_cb.cfg.bd_name) > (UINT16)(len - 2)) 778 { 779 *p++ = len - 2 + 1; 780 *p++ = BTM_BLE_AD_TYPE_NAME_SHORT; 781 ARRAY_TO_STREAM(p, btm_cb.cfg.bd_name, len - 2); 782 } 783 else 784 { 785 cp_len = (UINT16)strlen(btm_cb.cfg.bd_name); 786 *p++ = cp_len + 1; 787 *p++ = BTM_BLE_AD_TYPE_NAME_CMPL; 788 ARRAY_TO_STREAM(p, btm_cb.cfg.bd_name, cp_len); 789 } 790 len -= (cp_len + 2); 791 data_mask &= ~BTM_BLE_AD_BIT_DEV_NAME; 792 } 793 #endif 794 /* manufacturer data */ 795 if (len > 2 && data_mask & BTM_BLE_AD_BIT_MANU && 796 p_data && p_data->manu.len != 0 && p_data->manu.p_val) 797 { 798 if (p_data->manu.len > (len - 2)) 799 cp_len = len - 2; 800 else 801 cp_len = p_data->manu.len; 802 803 *p++ = cp_len + 1; 804 *p++ = BTM_BLE_AD_TYPE_MANU; 805 ARRAY_TO_STREAM(p, p_data->manu.p_val, cp_len); 806 807 len -= (cp_len + 2); 808 data_mask &= ~BTM_BLE_AD_BIT_MANU; 809 } 810 /* TX power */ 811 if (len > 2 && data_mask & BTM_BLE_AD_BIT_TX_PWR) 812 { 813 *p++ = 2; 814 *p++ = BTM_BLE_AD_TYPE_TX_PWR; 815 *p++ = btm_cb.ble_ctr_cb.inq_var.tx_power; 816 len -= 3; 817 818 data_mask &= ~BTM_BLE_AD_BIT_TX_PWR; 819 } 820 /* services */ 821 if (len > 2 && data_mask & BTM_BLE_AD_BIT_SERVICE && 822 p_data && p_data->services.num_service != 0 && 823 p_data->services.p_uuid) 824 { 825 if (p_data->services.num_service * 2 > (len - 2)) 826 { 827 cp_len = (len - 2)/2; 828 *p ++ = 1 + cp_len * 2; 829 *p++ = BTM_BLE_AD_TYPE_16SRV_PART; 830 } 831 else 832 { 833 cp_len = p_data->services.num_service; 834 *p++ = 1 + cp_len * 2; 835 *p++ = BTM_BLE_AD_TYPE_16SRV_CMPL; 836 } 837 for (i = 0; i < cp_len; i ++) 838 { 839 UINT16_TO_STREAM(p, *(p_data->services.p_uuid + i)); 840 } 841 842 len -= (cp_len * 2 + 2); 843 data_mask &= ~BTM_BLE_AD_BIT_SERVICE; 844 } 845 if (len >= 6 && data_mask & BTM_BLE_AD_BIT_INT_RANGE && 846 p_data) 847 { 848 *p++ = 5; 849 *p++ = BTM_BLE_AD_TYPE_INT_RANGE; 850 UINT16_TO_STREAM(p, p_data->int_range.low); 851 UINT16_TO_STREAM(p, p_data->int_range.hi); 852 len -= 6; 853 data_mask &= ~BTM_BLE_AD_BIT_INT_RANGE; 854 } 855 if (data_mask & BTM_BLE_AD_BIT_PROPRIETARY && p_data && p_data->p_proprietary) 856 { 857 for (i = 0; i < p_data->p_proprietary->num_elem ; i ++) 858 { 859 p_elem = p_data->p_proprietary->p_elem + i; 860 861 if (len >= (2 + p_elem->len))/* len byte(1) + ATTR type(1) + Uuid len(2) + value length */ 862 { 863 *p ++ = p_elem->len + 1; /* Uuid len + value length */ 864 *p ++ = p_elem->adv_type; 865 ARRAY_TO_STREAM(p, p_elem->p_val, p_elem->len); 866 867 len -= (2 + p_elem->len); 868 } 869 else 870 { 871 BTM_TRACE_WARNING0("data exceed max adv packet length"); 872 break; 873 } 874 } 875 data_mask &= ~BTM_BLE_AD_BIT_PROPRIETARY; 876 } 877 } 878 879 *p_data_mask = data_mask; 880 *p_dst = p; 881 882 return p_flag; 883 } 884 885 /******************************************************************************* 886 ** 887 ** Function btm_ble_set_discoverability 888 ** 889 ** Description This function is called to set BLE discoverable mode. 890 ** 891 ** Parameters: mode: discoverability mode. 892 ** 893 ** Returns void 894 ** 895 *******************************************************************************/ 896 tBTM_STATUS btm_ble_set_discoverability(UINT16 combined_mode) 897 { 898 tBTM_LE_RANDOM_CB *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb; 899 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 900 UINT16 mode = (combined_mode & BTM_BLE_DISCOVERABLE_MASK); 901 UINT8 flag = 0; 902 UINT8 new_mode = BTM_BLE_ADV_ENABLE; 903 UINT8 evt_type = (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE) ? \ 904 ((p_cb->scan_rsp) ? BTM_BLE_DISCOVER_EVT : BTM_BLE_NON_CONNECT_EVT )\ 905 : BTM_BLE_CONNECT_EVT; 906 tBTM_STATUS status = BTM_SUCCESS; 907 BD_ADDR p_addr_ptr= {0}; 908 tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC, 909 own_addr_type = p_addr_cb->own_addr_type;; 910 911 BTM_TRACE_EVENT2 ("btm_ble_set_discoverability mode=0x%0x combined_mode=0x%x", mode, combined_mode); 912 913 /*** Check mode parameter ***/ 914 if (mode > BTM_BLE_MAX_DISCOVERABLE) 915 return(BTM_ILLEGAL_VALUE); 916 917 p_cb->br_edr_supported_flag |= (combined_mode & BTM_DISCOVERABLE_MASK); 918 p_cb->discoverable_mode = mode; 919 920 if (!p_cb->br_edr_supported_flag) 921 { 922 flag = BTM_BLE_BREDR_NOT_SPT; 923 BTM_TRACE_DEBUG1("btm_ble_set_discoverability (BREDR not sup)flag=0x%x",flag); 924 } 925 926 BTM_TRACE_DEBUG1 ("br_edr_supported=0x%x", p_cb->br_edr_supported_flag); 927 928 if (mode == BTM_BLE_LIMITED_DISCOVERABLE || mode == BTM_BLE_GENERAL_DISCOVERABLE) 929 { 930 BTM_TRACE_EVENT0 ("mode == BTM_BLE_LIMITED_DISCOVERABLE "); 931 /* write ADV data with limited disc flag */ 932 if (mode == BTM_BLE_LIMITED_DISCOVERABLE) 933 flag |= BTM_BLE_LIMIT_DISC_FLAG ; 934 else 935 flag |= BTM_BLE_GEN_DISC_FLAG; 936 } 937 else /* non-discoverable */ 938 { 939 BTM_TRACE_EVENT0 ("mode == BTM_BLE_NON_DISCOVERABLE "); 940 941 if (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE) 942 { 943 p_cb->br_edr_supported_flag = 0; 944 945 BTM_TRACE_EVENT0 ("always disable adv in non-discoverable non-connectable mode if no scan rsp "); 946 if (!p_cb->scan_rsp ) 947 new_mode = BTM_BLE_ADV_DISABLE; 948 949 } 950 else 951 { 952 p_cb->evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type, &own_addr_type); 953 } 954 } 955 btm_ble_update_adv_flag(flag); 956 957 /* update adv params if start advertising */ 958 BTM_TRACE_EVENT2 ("evt_type=0x%x p-cb->evt_type=0x%x ", evt_type, p_cb->evt_type); 959 if (new_mode == BTM_BLE_ADV_ENABLE && 960 (evt_type != p_cb->evt_type ||p_cb->adv_addr_type != own_addr_type)) 961 { 962 btm_ble_stop_adv(); 963 964 /* update adv params */ 965 if (!btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min : BTM_BLE_GAP_ADV_INT), 966 (UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max : BTM_BLE_GAP_ADV_INT), 967 evt_type, 968 own_addr_type, 969 init_addr_type, 970 p_addr_ptr, 971 p_cb->adv_chnl_map, 972 p_cb->afp)) 973 974 status = BTM_NO_RESOURCES; 975 else 976 { 977 p_cb->evt_type = evt_type; 978 p_cb->adv_addr_type = own_addr_type; 979 } 980 981 } 982 983 if (status == BTM_SUCCESS && p_cb->adv_mode != new_mode) 984 { 985 if (new_mode == BTM_BLE_ADV_ENABLE) 986 status = btm_ble_start_adv(); 987 else 988 status = btm_ble_stop_adv(); 989 } 990 991 /* set up stop advertising timer */ 992 if (status == BTM_SUCCESS && mode == BTM_BLE_LIMITED_DISCOVERABLE) 993 { 994 BTM_TRACE_EVENT1 ("start timer for limited disc mode duration=%d (30 secs)", BTM_BLE_GAP_LIM_TOUT); 995 /* start Tgap(lim_timeout) */ 996 btu_start_timer (&p_cb->inq_timer_ent, BTU_TTYPE_BLE_GAP_LIM_DISC, 997 BTM_BLE_GAP_LIM_TOUT); 998 } 999 return status; 1000 } 1001 1002 /******************************************************************************* 1003 ** 1004 ** Function btm_ble_set_connectability 1005 ** 1006 ** Description This function is called to set BLE connectability mode. 1007 ** 1008 ** Parameters: mode: connectability mode. 1009 ** 1010 ** Returns void 1011 ** 1012 *******************************************************************************/ 1013 tBTM_STATUS btm_ble_set_connectability(UINT16 combined_mode) 1014 { 1015 tBTM_LE_RANDOM_CB *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb; 1016 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 1017 UINT16 mode = (combined_mode & BTM_BLE_CONNECTABLE_MASK); 1018 UINT8 cur_flag = 0; 1019 UINT8 cur_br_edr_not_sup_flag; 1020 UINT8 new_flag; 1021 UINT8 new_mode = BTM_BLE_ADV_ENABLE; 1022 UINT8 evt_type = (p_cb->scan_rsp) ? BTM_BLE_DISCOVER_EVT: BTM_BLE_NON_CONNECT_EVT; 1023 tBTM_STATUS status = BTM_SUCCESS; 1024 BD_ADDR p_addr_ptr = {0}; 1025 tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC, 1026 own_addr_type = p_addr_cb->own_addr_type; 1027 1028 BTM_TRACE_EVENT2 ("btm_ble_set_connectability mode=0x%0x combined_mode=0x%x", mode, combined_mode); 1029 /*** Check mode parameter ***/ 1030 if (mode > BTM_BLE_MAX_CONNECTABLE) 1031 return(BTM_ILLEGAL_VALUE); 1032 if (btm_cb.ble_ctr_cb.inq_var.adv_data.p_flags) 1033 cur_flag = *btm_cb.ble_ctr_cb.inq_var.adv_data.p_flags ; 1034 cur_br_edr_not_sup_flag = (cur_flag & ((UINT8) BTM_BLE_BREDR_NOT_SPT)); 1035 1036 p_cb->br_edr_supported_flag |= ((combined_mode & BTM_CONNECTABLE_MASK) << 4); 1037 if (p_cb->br_edr_supported_flag && cur_br_edr_not_sup_flag) 1038 { 1039 new_flag = cur_flag & ((UINT8) (~BTM_BLE_BREDR_NOT_SPT)); 1040 BTM_TRACE_EVENT2 ("new flag=0x%x cur flag=0x%x",new_flag, cur_flag); 1041 btm_ble_update_adv_flag(new_flag); 1042 } 1043 p_cb->connectable_mode = mode; 1044 1045 if (mode == BTM_BLE_NON_CONNECTABLE) 1046 { 1047 if (p_cb->discoverable_mode == BTM_BLE_NON_DISCOVERABLE) 1048 { 1049 p_cb->br_edr_supported_flag = 0; 1050 BTM_TRACE_EVENT0 ("always disable adv in non-discoverable non-connectable mode with no scan rsp"); 1051 if(!p_cb->scan_rsp) 1052 new_mode = BTM_BLE_ADV_DISABLE; 1053 1054 } 1055 } 1056 else /* connectable */ 1057 { 1058 evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type, &own_addr_type); 1059 } 1060 1061 /* update adv params if needed */ 1062 if ((p_cb->evt_type != evt_type || p_cb->adv_addr_type != p_addr_cb->own_addr_type) 1063 && new_mode == BTM_BLE_ADV_ENABLE) 1064 { 1065 btm_ble_stop_adv(); 1066 1067 if (!btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min : BTM_BLE_GAP_ADV_INT), 1068 (UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max : BTM_BLE_GAP_ADV_INT), 1069 evt_type, 1070 own_addr_type, 1071 init_addr_type, 1072 p_addr_ptr, 1073 p_cb->adv_chnl_map, 1074 p_cb->afp)) 1075 status = BTM_NO_RESOURCES; 1076 else 1077 { 1078 p_cb->evt_type = evt_type; 1079 p_cb->adv_addr_type = own_addr_type; 1080 } 1081 } 1082 1083 /* update advertising mode */ 1084 if (status == BTM_SUCCESS && new_mode != p_cb->adv_mode) 1085 { 1086 if (btsnd_hcic_ble_set_adv_enable (new_mode)) 1087 { 1088 status = BTM_SUCCESS; 1089 1090 p_cb->adv_mode = new_mode; 1091 1092 if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE && 1093 p_cb->afp != AP_SCAN_CONN_ALL) 1094 btm_cb.ble_ctr_cb.wl_state |= BTM_BLE_WL_ADV; 1095 else 1096 btm_cb.ble_ctr_cb.wl_state &= ~BTM_BLE_WL_ADV; 1097 1098 } 1099 } 1100 1101 return status; 1102 } 1103 1104 /******************************************************************************* 1105 ** 1106 ** Function btm_ble_start_inquiry 1107 ** 1108 ** Description This function is called to start BLE inquiry procedure. 1109 ** If the duration is zero, the periodic inquiry mode is cancelled. 1110 ** 1111 ** Parameters: mode - GENERAL or LIMITED inquiry 1112 ** p_inq_params - pointer to the BLE inquiry parameter. 1113 ** p_results_cb - callback returning pointer to results (tBTM_INQ_RESULTS) 1114 ** p_cmpl_cb - callback indicating the end of an inquiry 1115 ** 1116 ** 1117 ** 1118 ** Returns BTM_CMD_STARTED if successfully started 1119 ** BTM_NO_RESOURCES if could not allocate a message buffer 1120 ** BTM_BUSY - if an inquiry is already active 1121 ** 1122 *******************************************************************************/ 1123 tBTM_STATUS btm_ble_start_inquiry (UINT8 mode, UINT8 duration) 1124 { 1125 tBTM_STATUS status = BTM_NO_RESOURCES; 1126 tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var; 1127 1128 BTM_TRACE_DEBUG2("btm_ble_start_inquiry: mode = %02x inq_active = %d", mode, btm_cb.btm_inq_vars.inq_active); 1129 1130 if (p_inq->proc_mode != BTM_BLE_INQUIRY_NONE) 1131 { 1132 BTM_TRACE_ERROR0("LE scan is active, can not start inquiry"); 1133 return(BTM_BUSY); 1134 } 1135 1136 btm_update_scanner_filter_policy(SP_ADV_ALL); 1137 1138 /* start scan, already enable duplicate filtering */ 1139 if (btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_ENABLE, BTM_BLE_DUPLICATE_DISABLE)) 1140 { 1141 status = BTM_CMD_STARTED; 1142 p_inq->proc_mode = mode; 1143 1144 if (duration != 0) 1145 { 1146 /* start inquiry timer */ 1147 btu_start_timer (&p_inq->inq_timer_ent, BTU_TTYPE_BLE_INQUIRY, duration); 1148 } 1149 } 1150 1151 return status; 1152 } 1153 1154 /******************************************************************************* 1155 ** 1156 ** Function btm_ble_read_remote_name_cmpl 1157 ** 1158 ** Description This function is called when BLE remote name is received. 1159 ** 1160 ** Returns void 1161 ** 1162 *******************************************************************************/ 1163 void btm_ble_read_remote_name_cmpl(BOOLEAN status, BD_ADDR bda, UINT16 length, char *p_name) 1164 { 1165 UINT8 hci_status = HCI_SUCCESS; 1166 BD_NAME bd_name; 1167 1168 memset(bd_name, 0, (BD_NAME_LEN + 1)); 1169 memcpy((UINT8*)bd_name, p_name, length); 1170 1171 if ((!status) || (length==0)) 1172 { 1173 hci_status = HCI_ERR_HOST_TIMEOUT; 1174 } 1175 1176 btm_process_remote_name(bda, bd_name, length +1, hci_status); 1177 btm_sec_rmt_name_request_complete (bda, (UINT8 *)p_name, hci_status); 1178 } 1179 1180 /******************************************************************************* 1181 ** 1182 ** Function btm_ble_read_remote_name 1183 ** 1184 ** Description This function read remote LE device name using GATT read 1185 ** procedure. 1186 ** 1187 ** Parameters: None. 1188 ** 1189 ** Returns void 1190 ** 1191 *******************************************************************************/ 1192 tBTM_STATUS btm_ble_read_remote_name(BD_ADDR remote_bda, tBTM_INQ_INFO *p_cur, tBTM_CMPL_CB *p_cb) 1193 { 1194 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1195 1196 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 1197 return BTM_ERR_PROCESSING; 1198 1199 if (p_cur && 1200 p_cur->results.ble_evt_type != BTM_BLE_EVT_CONN_ADV && 1201 p_cur->results.ble_evt_type != BTM_BLE_EVT_CONN_DIR_ADV) 1202 { 1203 BTM_TRACE_DEBUG0("name request to non-connectable device failed."); 1204 return BTM_ERR_PROCESSING; 1205 } 1206 1207 /* read remote device name using GATT procedure */ 1208 if (p_inq->remname_active) 1209 return BTM_BUSY; 1210 1211 if (!GAP_BleReadPeerDevName(remote_bda, btm_ble_read_remote_name_cmpl)) 1212 return BTM_BUSY; 1213 1214 p_inq->p_remname_cmpl_cb = p_cb; 1215 p_inq->remname_active = TRUE; 1216 1217 memcpy(p_inq->remname_bda, remote_bda, BD_ADDR_LEN); 1218 1219 btu_start_timer (&p_inq->rmt_name_timer_ent, 1220 BTU_TTYPE_BTM_RMT_NAME, 1221 BTM_EXT_BLE_RMT_NAME_TIMEOUT); 1222 1223 return BTM_CMD_STARTED; 1224 } 1225 1226 /******************************************************************************* 1227 ** 1228 ** Function btm_ble_cancel_remote_name 1229 ** 1230 ** Description This function cancel read remote LE device name. 1231 ** 1232 ** Parameters: None. 1233 ** 1234 ** Returns void 1235 ** 1236 *******************************************************************************/ 1237 BOOLEAN btm_ble_cancel_remote_name(BD_ADDR remote_bda) 1238 { 1239 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1240 BOOLEAN status; 1241 1242 status = GAP_BleCancelReadPeerDevName(remote_bda); 1243 1244 p_inq->remname_active = FALSE; 1245 memset(p_inq->remname_bda, 0, BD_ADDR_LEN); 1246 btu_stop_timer(&p_inq->rmt_name_timer_ent); 1247 1248 return status; 1249 } 1250 1251 /******************************************************************************* 1252 ** 1253 ** Function btm_ble_update_adv_flag 1254 ** 1255 ** Description This function update the limited discoverable flag in the adv 1256 ** data. 1257 ** 1258 ** Parameters: None. 1259 ** 1260 ** Returns void 1261 ** 1262 *******************************************************************************/ 1263 static void btm_ble_update_adv_flag(UINT8 flag) 1264 { 1265 tBTM_BLE_LOCAL_ADV_DATA *p_adv_data = &btm_cb.ble_ctr_cb.inq_var.adv_data; 1266 UINT8 *p; 1267 1268 BTM_TRACE_DEBUG1 ("btm_ble_update_adv_flag new=0x%x", flag); 1269 1270 if (p_adv_data->p_flags != NULL) 1271 { 1272 BTM_TRACE_DEBUG1 ("btm_ble_update_adv_flag old=0x%x", *p_adv_data->p_flags); 1273 *p_adv_data->p_flags = flag; 1274 } 1275 else /* no FLAGS in ADV data*/ 1276 { 1277 p = (p_adv_data->p_pad == NULL) ? p_adv_data->ad_data : p_adv_data->p_pad; 1278 /* need 3 bytes space to stuff in the flags, if not */ 1279 /* erase all written data, just for flags */ 1280 if ((BTM_BLE_AD_DATA_LEN - (p - p_adv_data->ad_data)) < 3) 1281 { 1282 p = p_adv_data->p_pad = p_adv_data->ad_data; 1283 memset(p_adv_data->ad_data, 0, BTM_BLE_AD_DATA_LEN); 1284 } 1285 1286 *p++ = 2; 1287 *p++ = BTM_BLE_AD_TYPE_FLAG; 1288 p_adv_data->p_flags = p; 1289 *p++ = flag; 1290 p_adv_data->p_pad = p; 1291 } 1292 1293 if (btsnd_hcic_ble_set_adv_data((UINT8)(p_adv_data->p_pad - p_adv_data->ad_data), 1294 p_adv_data->ad_data)) 1295 p_adv_data->data_mask |= BTM_BLE_AD_BIT_FLAGS; 1296 1297 } 1298 1299 #if 0 1300 /******************************************************************************* 1301 ** 1302 ** Function btm_ble_parse_adv_data 1303 ** 1304 ** Description This function parse the adv data into a structure. 1305 ** 1306 ** Returns pointer to entry, or NULL if not found 1307 ** 1308 *******************************************************************************/ 1309 static void btm_ble_parse_adv_data(tBTM_INQ_INFO *p_info, UINT8 *p_data, 1310 UINT8 len, tBTM_BLE_INQ_DATA *p_adv_data, UINT8 *p_buf) 1311 { 1312 UINT8 *p_cur = p_data; 1313 UINT8 ad_len, ad_type, ad_flag; 1314 1315 BTM_TRACE_EVENT0 (" btm_ble_parse_adv_data"); 1316 1317 while (len > 0) 1318 { 1319 BTM_TRACE_DEBUG1("btm_ble_parse_adv_data: len = %d", len); 1320 if ((ad_len = *p_cur ++) == 0) 1321 break; 1322 1323 ad_type = *p_cur ++; 1324 1325 BTM_TRACE_DEBUG2(" ad_type = %02x ad_len = %d", ad_type, ad_len); 1326 1327 switch (ad_type) 1328 { 1329 case BTM_BLE_AD_TYPE_NAME_SHORT: 1330 1331 case BTM_BLE_AD_TYPE_NAME_CMPL: 1332 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_DEV_NAME; 1333 if (p_info) 1334 { 1335 p_info->remote_name_type =(ad_type == BTM_BLE_AD_TYPE_NAME_SHORT) ? 1336 BTM_BLE_NAME_SHORT: BTM_BLE_NAME_CMPL; 1337 memcpy(p_info->remote_name, p_cur, ad_len -1); 1338 p_info->remote_name[ad_len] = 0; 1339 p_adv_data->p_remote_name = p_info->remote_name; 1340 p_info->remote_name_len = p_adv_data->remote_name_len = ad_len - 1; 1341 BTM_TRACE_DEBUG1("BTM_BLE_AD_TYPE_NAME name = %s",p_adv_data->p_remote_name); 1342 } 1343 p_cur += (ad_len -1); 1344 1345 break; 1346 1347 case BTM_BLE_AD_TYPE_FLAG: 1348 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_FLAGS; 1349 ad_flag = *p_cur ++; 1350 p_adv_data->flag = (UINT8)(ad_flag & BTM_BLE_ADV_FLAG_MASK) ; 1351 BTM_TRACE_DEBUG3("BTM_BLE_AD_TYPE_FLAG flag = %s | %s | %s", 1352 (p_adv_data->flag & BTM_BLE_LIMIT_DISC_FLAG)? "LE_LIMIT_DISC" : "", 1353 (p_adv_data->flag & BTM_BLE_GEN_DISC_FLAG)? "LE_GENERAL_DISC" : "", 1354 (p_adv_data->flag & BTM_BLE_BREDR_NOT_SPT)? "LE Only device" : ""); 1355 break; 1356 1357 case BTM_BLE_AD_TYPE_TX_PWR: 1358 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_TX_PWR; 1359 p_adv_data->tx_power_level = (INT8)*p_cur ++; 1360 BTM_TRACE_DEBUG1("BTM_BLE_AD_TYPE_TX_PWR tx_level = %d", p_adv_data->tx_power_level); 1361 break; 1362 1363 case BTM_BLE_AD_TYPE_MANU: 1364 1365 case BTM_BLE_AD_TYPE_16SRV_PART: 1366 case BTM_BLE_AD_TYPE_16SRV_CMPL: 1367 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_SERVICE; 1368 /* need allocate memory to store UUID list */ 1369 p_adv_data->service.num_service = (ad_len - 1)/2; 1370 BTM_TRACE_DEBUG1("service UUID list, num = %d", p_adv_data->service.num_service); 1371 p_cur += (ad_len - 1); 1372 break; 1373 1374 case BTM_BLE_AD_TYPE_SOL_SRV_UUID: 1375 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_SERVICE_SOL; 1376 /* need allocate memory to store UUID list */ 1377 p_adv_data->service.num_service = (ad_len - 1)/2; 1378 BTM_TRACE_DEBUG1("service UUID list, num = %d", p_adv_data->service.num_service); 1379 p_cur += (ad_len - 1); 1380 break; 1381 1382 case BTM_BLE_AD_TYPE_128SOL_SRV_UUID: 1383 p_adv_data->ad_mask |= BTM_BLE_AD_BIT_SERVICE_128SOL; 1384 /* need allocate memory to store UUID list */ 1385 p_adv_data->service.num_service = (ad_len - 1)/16; 1386 BTM_TRACE_DEBUG1("service UUID list, num = %d", p_adv_data->service.num_service); 1387 p_cur += (ad_len - 1); 1388 break; 1389 1390 case BTM_BLE_AD_TYPE_APPEARANCE: 1391 case BTM_BLE_AD_TYPE_PUBLIC_TARGET: 1392 case BTM_BLE_AD_TYPE_RANDOM_TARGET: 1393 default: 1394 break; 1395 } 1396 len -= (ad_len + 1); 1397 } 1398 } 1399 #endif 1400 1401 /******************************************************************************* 1402 ** 1403 ** Function btm_ble_cache_adv_data 1404 ** 1405 ** Description Update advertising cache data. 1406 ** 1407 ** Returns void 1408 ** 1409 *******************************************************************************/ 1410 void btm_ble_cache_adv_data(tBTM_INQ_RESULTS *p_cur, UINT8 data_len, UINT8 *p, UINT8 evt_type) 1411 { 1412 tBTM_BLE_INQ_CB *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var; 1413 UINT8 *p_cache; 1414 UINT8 length; 1415 1416 /* cache adv report/scan response data */ 1417 if (evt_type != BTM_BLE_SCAN_RSP_EVT) 1418 { 1419 p_le_inq_cb->adv_len = 0; 1420 memset(p_le_inq_cb->adv_data_cache, 0, BTM_BLE_CACHE_ADV_DATA_MAX); 1421 } 1422 1423 if (data_len > 0) 1424 { 1425 p_cache = &p_le_inq_cb->adv_data_cache[p_le_inq_cb->adv_len]; 1426 STREAM_TO_UINT8(length, p); 1427 while ( length && ((p_le_inq_cb->adv_len + length + 1) <= BTM_BLE_CACHE_ADV_DATA_MAX)) 1428 { 1429 /* copy from the length byte & data into cache */ 1430 memcpy(p_cache, p-1, length+1); 1431 /* advance the cache pointer past data */ 1432 p_cache += length+1; 1433 /* increment cache length */ 1434 p_le_inq_cb->adv_len += length+1; 1435 /* skip the length of data */ 1436 p += length; 1437 STREAM_TO_UINT8(length, p); 1438 } 1439 } 1440 1441 /* parse service UUID from adv packet and save it in inq db eir_uuid */ 1442 /* TODO */ 1443 } 1444 1445 /******************************************************************************* 1446 ** 1447 ** Function btm_ble_is_discoverable 1448 ** 1449 ** Description check ADV flag to make sure device is discoverable and match 1450 ** the search condition 1451 ** 1452 ** Parameters 1453 ** 1454 ** Returns void 1455 ** 1456 *******************************************************************************/ 1457 BOOLEAN btm_ble_is_discoverable(BD_ADDR bda, UINT8 evt_type, UINT8 *p) 1458 { 1459 BOOLEAN is_discoverable = FALSE; 1460 UINT8 *p_flag, flag = 0; 1461 UINT8 data_len; 1462 tBTM_INQ_PARMS *p_cond = &btm_cb.btm_inq_vars.inqparms; 1463 1464 STREAM_TO_UINT8 (data_len, p); 1465 1466 /* for observer, always "discoverable */ 1467 if (btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_OBSERVE || 1468 (btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_SELECT_SCAN && 1469 btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE)) 1470 return TRUE; 1471 1472 /* does not match filter condition */ 1473 if (p_cond->filter_cond_type == BTM_FILTER_COND_BD_ADDR && 1474 memcmp(bda, p_cond->filter_cond.bdaddr_cond, BD_ADDR_LEN) != 0) 1475 { 1476 BTM_TRACE_DEBUG0("BD ADDR does not meet filter condition"); 1477 return FALSE; 1478 } 1479 1480 /* scan response does not include the flag */ 1481 if (evt_type == BTM_BLE_SCAN_RSP_EVT) 1482 return FALSE; 1483 1484 if (data_len > BTM_BLE_ADV_DATA_LEN_MAX) 1485 { 1486 BTM_TRACE_WARNING1("ADV data too long %d. discard", data_len); 1487 return FALSE; 1488 } 1489 1490 if (data_len != 0) 1491 { 1492 if ((p_flag = BTM_CheckAdvData(p, BTM_BLE_AD_TYPE_FLAG, &data_len)) != NULL) 1493 { 1494 flag = * p_flag; 1495 1496 if ((btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_GENERAL_INQUIRY) && 1497 (flag & (BTM_BLE_LIMIT_DISC_FLAG|BTM_BLE_GEN_DISC_FLAG)) != 0) 1498 { 1499 BTM_TRACE_DEBUG0("Find Generable Discoverable device"); 1500 is_discoverable = TRUE; 1501 } 1502 1503 else if (btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_LIMITED_INQUIRY && 1504 (flag & BTM_BLE_LIMIT_DISC_FLAG) != 0) 1505 { 1506 BTM_TRACE_DEBUG0("Find limited discoverable device"); 1507 is_discoverable = TRUE; 1508 } 1509 1510 } 1511 } 1512 1513 if (!is_discoverable) 1514 { 1515 BTM_TRACE_ERROR1("discoverable flag not desired: %d", flag); 1516 } 1517 1518 return is_discoverable; 1519 } 1520 1521 /******************************************************************************* 1522 ** 1523 ** Function btm_ble_update_inq_result 1524 ** 1525 ** Description Update adv packet information into inquiry result. 1526 ** 1527 ** Parameters 1528 ** 1529 ** Returns void 1530 ** 1531 *******************************************************************************/ 1532 BOOLEAN btm_ble_update_inq_result(tINQ_DB_ENT *p_i, UINT8 addr_type, UINT8 evt_type, UINT8 *p) 1533 { 1534 BOOLEAN to_report = TRUE; 1535 tBTM_INQ_RESULTS *p_cur = &p_i->inq_info.results; 1536 UINT8 len; 1537 UINT8 *p_flag; 1538 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1539 UINT8 data_len, rssi; 1540 tBTM_BLE_INQ_CB *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var; 1541 UINT8 *p1; 1542 1543 STREAM_TO_UINT8 (data_len, p); 1544 1545 if (data_len > BTM_BLE_ADV_DATA_LEN_MAX) 1546 { 1547 BTM_TRACE_WARNING1("EIR data too long %d. discard", data_len); 1548 return FALSE; 1549 } 1550 btm_ble_cache_adv_data(p_cur, data_len, p, evt_type); 1551 1552 p1 = (p + data_len); 1553 STREAM_TO_UINT8 (rssi, p1); 1554 1555 /* Save the info */ 1556 p_cur->inq_result_type = BTM_INQ_RESULT_BLE; 1557 p_cur->ble_addr_type = addr_type; 1558 p_cur->rssi = rssi; 1559 1560 /* active scan, always wait until get scan_rsp to report the result */ 1561 if ((btm_cb.ble_ctr_cb.inq_var.scan_type == BTM_BLE_SCAN_MODE_ACTI && 1562 (evt_type == BTM_BLE_CONNECT_EVT || evt_type == BTM_BLE_DISCOVER_EVT))) 1563 { 1564 BTM_TRACE_DEBUG1("btm_ble_update_inq_result scan_rsp=false, to_report=false,\ 1565 scan_type_active=%d", btm_cb.ble_ctr_cb.inq_var.scan_type); 1566 p_i->scan_rsp = FALSE; 1567 to_report = FALSE; 1568 } 1569 else 1570 p_i->scan_rsp = TRUE; 1571 1572 if (p_i->inq_count != p_inq->inq_counter) 1573 p_cur->device_type = BT_DEVICE_TYPE_BLE; 1574 else 1575 p_cur->device_type |= BT_DEVICE_TYPE_BLE; 1576 1577 if (evt_type != BTM_BLE_SCAN_RSP_EVT) 1578 p_cur->ble_evt_type = evt_type; 1579 1580 p_i->inq_count = p_inq->inq_counter; /* Mark entry for current inquiry */ 1581 1582 if (p_le_inq_cb->adv_len != 0) 1583 { 1584 if ((p_flag = BTM_CheckAdvData(p_le_inq_cb->adv_data_cache, BTM_BLE_AD_TYPE_FLAG, &len)) != NULL) 1585 p_cur->flag = * p_flag; 1586 } 1587 1588 /* if BR/EDR not supported is not set, assume is a DUMO device */ 1589 if ((p_cur->flag & BTM_BLE_BREDR_NOT_SPT) == 0 && 1590 evt_type != BTM_BLE_CONNECT_DIR_EVT) 1591 { 1592 if (p_cur->ble_addr_type != BLE_ADDR_RANDOM) 1593 { 1594 BTM_TRACE_DEBUG0("BR/EDR NOT support bit not set, treat as DUMO"); 1595 p_cur->device_type |= BT_DEVICE_TYPE_DUMO; 1596 } else { 1597 BTM_TRACE_DEBUG0("Random address, treating device as LE only"); 1598 } 1599 } 1600 else 1601 { 1602 BTM_TRACE_DEBUG0("BR/EDR NOT SUPPORT bit set, LE only device"); 1603 } 1604 1605 return to_report; 1606 1607 } 1608 1609 /******************************************************************************* 1610 ** 1611 ** Function btm_send_sel_conn_callback 1612 ** 1613 ** Description send selection connection request callback. 1614 ** 1615 ** Parameters 1616 ** 1617 ** Returns void 1618 ** 1619 *******************************************************************************/ 1620 void btm_send_sel_conn_callback(BD_ADDR remote_bda, UINT8 evt_type, UINT8 *p_data, UINT8 addr_type) 1621 { 1622 UINT8 data_len, len; 1623 UINT8 *p_dev_name, remname[31] = {0}; 1624 1625 if (btm_cb.ble_ctr_cb.p_select_cback == NULL || 1626 /* non-connectable device */ 1627 (evt_type != BTM_BLE_EVT_CONN_ADV && evt_type != BTM_BLE_EVT_CONN_DIR_ADV)) 1628 return; 1629 1630 STREAM_TO_UINT8 (data_len, p_data); 1631 1632 /* get the device name if exist in ADV data */ 1633 if (data_len != 0) 1634 { 1635 p_dev_name = BTM_CheckAdvData(p_data, BTM_BLE_AD_TYPE_NAME_CMPL, &len); 1636 1637 if (p_dev_name == NULL) 1638 p_dev_name = BTM_CheckAdvData(p_data, BTM_BLE_AD_TYPE_NAME_SHORT, &len); 1639 1640 if (p_dev_name) 1641 memcpy(remname, p_dev_name, len); 1642 } 1643 /* allow connection */ 1644 if ((* btm_cb.ble_ctr_cb.p_select_cback)(remote_bda, remname)) 1645 { 1646 /* terminate selective connection, initiate connection */ 1647 btm_ble_initiate_select_conn(remote_bda); 1648 } 1649 } 1650 1651 /******************************************************************************* 1652 ** 1653 ** Function btm_ble_process_adv_pkt 1654 ** 1655 ** Description This function is called when adv packet report events are 1656 ** received from the device. It updates the inquiry database. 1657 ** If the inquiry database is full, the oldest entry is discarded. 1658 ** 1659 ** Parameters 1660 ** 1661 ** Returns void 1662 ** 1663 *******************************************************************************/ 1664 void btm_ble_process_adv_pkt (UINT8 *p_data) 1665 { 1666 BD_ADDR bda; 1667 UINT8 evt_type = 0, *p = p_data; 1668 UINT8 addr_type = 0; 1669 1670 /* always get one device at a time */ 1671 p ++; 1672 1673 /* Extract inquiry results */ 1674 STREAM_TO_UINT8 (evt_type, p); 1675 STREAM_TO_UINT8 (addr_type, p); 1676 STREAM_TO_BDADDR (bda, p); 1677 1678 #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 */ 1679 if (BTM_BLE_PC_ADV_TEST_MODE) /* For stack component, it is always defined and maps to a global variable g_bDraculaAdvertisingMode */ 1680 { 1681 if (btm_cb.ble_ctr_cb.p_scan_req_cback) 1682 (*btm_cb.ble_ctr_cb.p_scan_req_cback)(bda, addr_type, evt_type); 1683 } 1684 #endif 1685 1686 1687 1688 /* Only process the results if the inquiry is still active */ 1689 if ((btm_cb.btm_inq_vars.inq_active & BTM_LE_SCAN_ACTIVE_MASK) == 0 && 1690 (btm_cb.ble_ctr_cb.bg_conn_type != BTM_BLE_CONN_SELECTIVE || 1691 /* or selective auto connection is active */ 1692 btm_cb.ble_ctr_cb.p_select_cback == NULL)) 1693 return; 1694 1695 BTM_TRACE_DEBUG6("btm_ble_process_adv_pkt:bda= %0x:%0x:%0x:%0x:%0x:%0x", 1696 bda[0],bda[1],bda[2],bda[3],bda[4],bda[5]); 1697 btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, p); 1698 } 1699 1700 /******************************************************************************* 1701 ** 1702 ** Function btm_ble_process_adv_pkt_cont 1703 ** 1704 ** Description This function is called after random address resolution is 1705 ** done, and proceed to process adv packet. 1706 ** 1707 ** Parameters 1708 ** 1709 ** Returns void 1710 ** 1711 *******************************************************************************/ 1712 static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt_type, UINT8 *p) 1713 { 1714 tINQ_DB_ENT *p_i; 1715 BOOLEAN to_report = FALSE; 1716 BOOLEAN to_report_LE = TRUE; //var for reporting to LE observe 1717 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1718 tBTM_INQ_RESULTS_CB *p_inq_results_cb = p_inq->p_inq_results_cb; 1719 tBTM_INQ_RESULTS_CB *p_inq_ble_results_cb = p_inq->p_inq_ble_results_cb; 1720 tBTM_BLE_INQ_CB *p_le_inq_cb = &btm_cb.ble_ctr_cb.inq_var; 1721 BTM_TRACE_DEBUG2("btm_ble_process_adv_pkt_cont: addr_type: %d, evt_type: %d", addr_type, evt_type); 1722 1723 p_i = btm_inq_db_find (bda); 1724 1725 /* Check if this address has already been processed for this inquiry */ 1726 if (btm_inq_find_bdaddr(bda)) 1727 { 1728 /* never been report as an LE device */ 1729 if ((p_i && 1730 (!(p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BLE) || 1731 /* scan repsonse to be updated */ 1732 (!p_i->scan_rsp))) 1733 || 1734 btm_cb.ble_ctr_cb.inq_var.proc_mode == BTM_BLE_OBSERVE) 1735 { 1736 BTM_TRACE_DEBUG0("update new BLE information "); 1737 to_report = TRUE; 1738 } 1739 else 1740 { 1741 to_report = FALSE; 1742 } 1743 } 1744 else /* not been processed in this round */ 1745 { 1746 to_report = TRUE; 1747 } 1748 1749 /* If existing entry, use that, else get a new one (possibly reusing the oldest) */ 1750 if (p_i == NULL) 1751 { 1752 if ((p_i = btm_inq_db_new (bda)) != NULL) 1753 { 1754 p_inq->inq_cmpl_info.num_resp++; 1755 } 1756 else 1757 return; 1758 1759 if (to_report && btm_ble_is_discoverable(bda, evt_type, p)) 1760 { 1761 to_report = TRUE; 1762 } 1763 else 1764 { 1765 BTM_TRACE_ERROR0("discard adv pkt"); 1766 to_report = FALSE; 1767 } 1768 } 1769 else if (p_i->inq_count != p_inq->inq_counter) /* first time seen in this inquiry */ 1770 { 1771 p_inq->inq_cmpl_info.num_resp++; 1772 } 1773 /* update the LE device information in inquiry database */ 1774 to_report_LE = btm_ble_update_inq_result(p_i, addr_type, evt_type, p); 1775 if (to_report) 1776 to_report = to_report_LE; 1777 #if BTM_USE_INQ_RESULTS_FILTER == TRUE 1778 /* If the number of responses found and limited, issue a cancel inquiry */ 1779 if (p_inq->inqparms.max_resps && 1780 p_inq->inq_cmpl_info.num_resp == p_inq->inqparms.max_resps) 1781 { 1782 /* new device */ 1783 if (p_i == NULL || 1784 (/* assume a DUMO device, BR/EDR inquiry is always active */ 1785 p_i && p_i->inq_info.results.device_type == BT_DEVICE_TYPE_BLE && p_i->scan_rsp)) 1786 { 1787 BTM_TRACE_WARNING0("INQ RES: Extra Response Received...cancelling inquiry.."); 1788 1789 /* if is non-periodic inquiry active, cancel now */ 1790 if ((p_inq->inq_active & BTM_BR_INQ_ACTIVE_MASK) != 0 && 1791 (p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) == 0) 1792 btsnd_hcic_inq_cancel(); 1793 1794 /* stop LE scan now */ 1795 btm_ble_stop_scan(); 1796 1797 #if BTM_BUSY_LEVEL_CHANGE_INCLUDED == TRUE 1798 btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT); 1799 #endif 1800 } 1801 } 1802 #endif 1803 1804 BTM_TRACE_DEBUG2("btm_ble_process_adv_pkt_cont: to_report =%d, to_report_le=%d", 1805 to_report, to_report_LE); 1806 /* background connection in selective connection mode */ 1807 if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE) 1808 { 1809 if (p_i->inq_info.results.device_type == BT_DEVICE_TYPE_BLE && 1810 (evt_type == BTM_BLE_CONNECT_EVT || evt_type == BTM_BLE_CONNECT_DIR_EVT)) 1811 btm_send_sel_conn_callback(bda, evt_type, p, addr_type); 1812 else 1813 { 1814 BTM_TRACE_DEBUG0("None LE device, can not initiate selective connection"); 1815 } 1816 } 1817 else if (to_report || to_report_LE) 1818 { 1819 if(p_inq_results_cb && to_report) 1820 (p_inq_results_cb)((tBTM_INQ_RESULTS *) &p_i->inq_info.results, p_le_inq_cb->adv_data_cache); 1821 if(p_inq_ble_results_cb && to_report_LE) 1822 (p_inq_ble_results_cb)((tBTM_INQ_RESULTS *) &p_i->inq_info.results, 1823 p_le_inq_cb->adv_data_cache); 1824 } 1825 } 1826 1827 /******************************************************************************* 1828 ** 1829 ** Function btm_ble_stop_scan 1830 ** 1831 ** Description Stop the BLE scan. 1832 ** 1833 ** Returns void 1834 ** 1835 *******************************************************************************/ 1836 void btm_ble_stop_scan(void) 1837 { 1838 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 1839 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1840 1841 BTM_TRACE_EVENT0 ("btm_ble_stop_scan "); 1842 1843 btu_stop_timer (&p_cb->inq_timer_ent); 1844 1845 /* Clear the inquiry callback if set */ 1846 p_cb->scan_type = BTM_BLE_SCAN_MODE_NONE; 1847 p_cb->proc_mode = BTM_BLE_INQUIRY_NONE; 1848 1849 /* stop discovery now */ 1850 btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE); 1851 1852 /* If we have a callback registered for inquiry complete, call it */ 1853 BTM_TRACE_DEBUG2 ("BTM Inq Compl Callback: status 0x%02x, num results %d", 1854 p_inq->inq_cmpl_info.status, p_inq->inq_cmpl_info.num_resp); 1855 1856 btm_update_scanner_filter_policy(SP_ADV_ALL); 1857 1858 btm_process_inq_complete(HCI_SUCCESS, (UINT8)(p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK)); 1859 1860 } 1861 1862 /******************************************************************************* 1863 ** 1864 ** Function btm_ble_start_adv 1865 ** 1866 ** Description Stop the BLE advertising. 1867 ** 1868 ** Returns void 1869 ** 1870 *******************************************************************************/ 1871 static tBTM_STATUS btm_ble_start_adv(void) 1872 { 1873 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 1874 tBTM_STATUS rt = BTM_NO_RESOURCES; 1875 1876 if (btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_ENABLE)) 1877 { 1878 if (p_cb->afp != AP_SCAN_CONN_ALL) 1879 btm_cb.ble_ctr_cb.wl_state |= BTM_BLE_WL_ADV; 1880 1881 p_cb->adv_mode = BTM_BLE_ADV_ENABLE; 1882 1883 rt = BTM_SUCCESS; 1884 } 1885 else 1886 { 1887 p_cb->adv_mode = BTM_BLE_ADV_DISABLE; 1888 btm_cb.ble_ctr_cb.wl_state &= ~BTM_BLE_WL_ADV; 1889 } 1890 return rt; 1891 } 1892 /******************************************************************************* 1893 ** 1894 ** Function btm_ble_stop_adv 1895 ** 1896 ** Description Stop the BLE advertising. 1897 ** 1898 ** Returns void 1899 ** 1900 *******************************************************************************/ 1901 static tBTM_STATUS btm_ble_stop_adv(void) 1902 { 1903 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 1904 tBTM_STATUS rt = BTM_SUCCESS; 1905 1906 if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE) 1907 { 1908 if (btsnd_hcic_ble_set_adv_enable (BTM_BLE_ADV_DISABLE)) 1909 { 1910 p_cb->adv_mode = BTM_BLE_ADV_DISABLE; 1911 btm_cb.ble_ctr_cb.wl_state &= ~BTM_BLE_WL_ADV; 1912 } 1913 else 1914 rt = BTM_NO_RESOURCES; 1915 } 1916 return rt; 1917 1918 } 1919 1920 /******************************************************************************* 1921 ** 1922 ** Function btm_ble_timeout 1923 ** 1924 ** Description Called when BTM BLE inquiry timer expires 1925 ** 1926 ** Returns void 1927 ** 1928 *******************************************************************************/ 1929 void btm_ble_timeout(TIMER_LIST_ENT *p_tle) 1930 { 1931 switch (p_tle->event) 1932 { 1933 case BTU_TTYPE_BLE_INQUIRY: 1934 btm_ble_stop_scan(); 1935 break; 1936 1937 case BTU_TTYPE_BLE_GAP_LIM_DISC: 1938 /* lim_timeout expiried, limited discovery should exit now */ 1939 btm_ble_update_adv_flag(BTM_BLE_NON_LIMIT_DISC_FLAG); 1940 1941 btm_ble_stop_adv(); 1942 break; 1943 1944 case BTU_TTYPE_BLE_RANDOM_ADDR: 1945 if (btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type == BLE_ADDR_RANDOM) 1946 { 1947 /* refresh the random addr */ 1948 btm_gen_resolvable_private_addr(); 1949 } 1950 break; 1951 1952 } 1953 } 1954 1955 1956 /******************************************************************************* 1957 ** 1958 ** Function btm_ble_read_remote_features_complete 1959 ** 1960 ** Description This function is called when the command complete message 1961 ** is received from the HCI for the read LE remote feature supported 1962 ** complete event. 1963 ** 1964 ** Returns void 1965 ** 1966 *******************************************************************************/ 1967 void btm_ble_read_remote_features_complete(UINT8 *p) 1968 { 1969 tACL_CONN *p_acl_cb = &btm_cb.acl_db[0]; 1970 UINT8 status; 1971 UINT16 handle; 1972 int xx; 1973 1974 BTM_TRACE_EVENT0 ("btm_ble_read_remote_features_complete "); 1975 1976 STREAM_TO_UINT8 (status, p); 1977 STREAM_TO_UINT16 (handle, p); 1978 1979 /* Look up the connection by handle and copy features */ 1980 for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, p_acl_cb++) 1981 { 1982 if ((p_acl_cb->in_use) && (p_acl_cb->hci_handle == handle)) 1983 { 1984 STREAM_TO_ARRAY(p_acl_cb->peer_le_features, p, BD_FEATURES_LEN); 1985 break; 1986 } 1987 } 1988 } 1989 1990 /******************************************************************************* 1991 ** 1992 ** Function btm_ble_write_adv_enable_complete 1993 ** 1994 ** Description This function process the write adv enable command complete. 1995 ** 1996 ** Returns void 1997 ** 1998 *******************************************************************************/ 1999 void btm_ble_write_adv_enable_complete(UINT8 * p) 2000 { 2001 tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var; 2002 2003 /* if write adv enable/disbale not succeed */ 2004 if (*p != HCI_SUCCESS) 2005 { 2006 /* toggle back the adv mode */ 2007 p_cb->adv_mode = !p_cb->adv_mode; 2008 } 2009 2010 2011 } 2012 2013 /******************************************************************************* 2014 ** 2015 ** Function btm_ble_dir_adv_tout 2016 ** 2017 ** Description when directed adv time out 2018 ** 2019 ** Returns void 2020 ** 2021 *******************************************************************************/ 2022 void btm_ble_dir_adv_tout(void) 2023 { 2024 btm_cb.ble_ctr_cb.inq_var.adv_mode = BTM_BLE_ADV_DISABLE; 2025 2026 /* make device fall back into undirected adv mode by default */ 2027 btm_cb.ble_ctr_cb.inq_var.directed_conn = FALSE; 2028 } 2029 2030 /******************************************************************************* 2031 ** 2032 ** Function btm_ble_update_mode_operation 2033 ** 2034 ** Description This function update the GAP role operation when a link status 2035 ** is updated. 2036 ** 2037 ** Returns void 2038 ** 2039 *******************************************************************************/ 2040 void btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bd_addr, BOOLEAN conn_cancel) 2041 { 2042 tACL_CONN *pa = &btm_cb.acl_db[0]; 2043 UINT16 xx; 2044 UINT8 dev_role = link_role; 2045 2046 BTM_TRACE_DEBUG1("btm_ble_update_mode_operation adv_mode = %d", btm_cb.ble_ctr_cb.inq_var.adv_mode ); 2047 2048 /* update periphera role operation */ 2049 /* If we are LE connectable, check if we need to start advertising again */ 2050 if (link_role == HCI_ROLE_UNKNOWN) 2051 /* && btm_cb.ble_ctr_cb.inq_var.connectable_mode != BTM_BLE_NON_CONNECTABLE) */ 2052 { 2053 for (xx = 0; xx < MAX_L2CAP_LINKS; xx++, pa++) 2054 { 2055 /* If any other LE link is up, we are still not connectable */ 2056 if (pa->in_use && pa->is_le_link) 2057 { 2058 dev_role = pa->link_role; 2059 break; 2060 } 2061 } 2062 } 2063 2064 if (btm_cb.ble_ctr_cb.inq_var.connectable_mode == BTM_BLE_CONNECTABLE && 2065 (dev_role == HCI_ROLE_UNKNOWN )) /* when device has no connection, update adv here */ 2066 /* if already in connection, no connectable adv is allowed unless scatternet is enabled */ 2067 { 2068 btm_ble_set_connectability ( btm_cb.ble_ctr_cb.inq_var.connectable_mode ); 2069 } 2070 2071 if (btm_ble_get_conn_st() == BLE_CONN_IDLE) 2072 { 2073 if (!btm_send_pending_direct_conn()) 2074 { 2075 btm_ble_resume_bg_conn(); 2076 } 2077 } 2078 } 2079 2080 /******************************************************************************* 2081 ** 2082 ** Function btm_ble_init 2083 ** 2084 ** Description Initialize the control block variable values. 2085 ** 2086 ** Returns void 2087 ** 2088 *******************************************************************************/ 2089 void btm_ble_init (void) 2090 { 2091 tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; 2092 2093 BTM_TRACE_EVENT0 ("btm_ble_init "); 2094 2095 memset(p_cb, 0, sizeof(tBTM_BLE_CB)); 2096 2097 p_cb->inq_var.adv_mode = BTM_BLE_ADV_DISABLE; 2098 p_cb->inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE; 2099 p_cb->inq_var.adv_chnl_map = BTM_BLE_DEFAULT_ADV_CHNL_MAP; 2100 p_cb->inq_var.afp = BTM_BLE_DEFAULT_AFP; 2101 p_cb->inq_var.sfp = BTM_BLE_DEFAULT_SFP; 2102 p_cb->inq_var.connectable_mode = BTM_BLE_NON_CONNECTABLE; 2103 p_cb->inq_var.discoverable_mode = BTM_BLE_NON_DISCOVERABLE; 2104 2105 /* for background connection, reset connection params to be undefined */ 2106 p_cb->scan_int = p_cb->scan_win = BTM_BLE_CONN_PARAM_UNDEF; 2107 2108 p_cb->inq_var.evt_type = BTM_BLE_NON_CONNECT_EVT; 2109 } 2110 2111 #endif /* BLE_INCLUDED */ 2112
