1 /****************************************************************************** 2 * 3 * Copyright (C) 1999-2012 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 that handle inquiries. These include 22 * setting discoverable mode, controlling the mode of the Baseband, and 23 * maintaining a small database of inquiry responses, with API for people 24 * to browse it. 25 * 26 ******************************************************************************/ 27 28 #include <stdlib.h> 29 #include <string.h> 30 #include <stdio.h> 31 #include <stddef.h> 32 33 #include "bt_types.h" 34 #include "gki.h" 35 #include "hcimsgs.h" 36 #include "btu.h" 37 #include "btm_api.h" 38 #include "btm_int.h" 39 #include "hcidefs.h" 40 41 #define BTM_INQ_REPLY_TIMEOUT 3 /* 3 second timeout waiting for responses */ 42 43 /* TRUE to enable DEBUG traces for btm_inq */ 44 #ifndef BTM_INQ_DEBUG 45 #define BTM_INQ_DEBUG FALSE 46 #endif 47 /********************************************************************************/ 48 /* L O C A L D A T A D E F I N I T I O N S */ 49 /********************************************************************************/ 50 static const LAP general_inq_lap = {0x9e,0x8b,0x33}; 51 static const LAP limited_inq_lap = {0x9e,0x8b,0x00}; 52 53 #if (( BTM_EIR_CLIENT_INCLUDED == TRUE )||( BTM_EIR_SERVER_INCLUDED == TRUE )) 54 #ifndef BTM_EIR_UUID_LKUP_TBL 55 const UINT16 BTM_EIR_UUID_LKUP_TBL[BTM_EIR_MAX_SERVICES] = 56 { 57 UUID_SERVCLASS_SERVICE_DISCOVERY_SERVER, 58 /* UUID_SERVCLASS_BROWSE_GROUP_DESCRIPTOR, */ 59 /* UUID_SERVCLASS_PUBLIC_BROWSE_GROUP, */ 60 UUID_SERVCLASS_SERIAL_PORT, 61 UUID_SERVCLASS_LAN_ACCESS_USING_PPP, 62 UUID_SERVCLASS_DIALUP_NETWORKING, 63 UUID_SERVCLASS_IRMC_SYNC, 64 UUID_SERVCLASS_OBEX_OBJECT_PUSH, 65 UUID_SERVCLASS_OBEX_FILE_TRANSFER, 66 UUID_SERVCLASS_IRMC_SYNC_COMMAND, 67 UUID_SERVCLASS_HEADSET, 68 UUID_SERVCLASS_CORDLESS_TELEPHONY, 69 UUID_SERVCLASS_AUDIO_SOURCE, 70 UUID_SERVCLASS_AUDIO_SINK, 71 UUID_SERVCLASS_AV_REM_CTRL_TARGET, 72 /* UUID_SERVCLASS_ADV_AUDIO_DISTRIBUTION, */ 73 UUID_SERVCLASS_AV_REMOTE_CONTROL, 74 /* UUID_SERVCLASS_VIDEO_CONFERENCING, */ 75 UUID_SERVCLASS_INTERCOM, 76 UUID_SERVCLASS_FAX, 77 UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY, 78 /* UUID_SERVCLASS_WAP, */ 79 /* UUID_SERVCLASS_WAP_CLIENT, */ 80 UUID_SERVCLASS_PANU, 81 UUID_SERVCLASS_NAP, 82 UUID_SERVCLASS_GN, 83 UUID_SERVCLASS_DIRECT_PRINTING, 84 /* UUID_SERVCLASS_REFERENCE_PRINTING, */ 85 UUID_SERVCLASS_IMAGING, 86 UUID_SERVCLASS_IMAGING_RESPONDER, 87 UUID_SERVCLASS_IMAGING_AUTO_ARCHIVE, 88 UUID_SERVCLASS_IMAGING_REF_OBJECTS, 89 UUID_SERVCLASS_HF_HANDSFREE, 90 UUID_SERVCLASS_AG_HANDSFREE, 91 UUID_SERVCLASS_DIR_PRT_REF_OBJ_SERVICE, 92 /* UUID_SERVCLASS_REFLECTED_UI, */ 93 UUID_SERVCLASS_BASIC_PRINTING, 94 UUID_SERVCLASS_PRINTING_STATUS, 95 UUID_SERVCLASS_HUMAN_INTERFACE, 96 UUID_SERVCLASS_CABLE_REPLACEMENT, 97 UUID_SERVCLASS_HCRP_PRINT, 98 UUID_SERVCLASS_HCRP_SCAN, 99 /* UUID_SERVCLASS_COMMON_ISDN_ACCESS, */ 100 /* UUID_SERVCLASS_VIDEO_CONFERENCING_GW, */ 101 /* UUID_SERVCLASS_UDI_MT, */ 102 /* UUID_SERVCLASS_UDI_TA, */ 103 /* UUID_SERVCLASS_VCP, */ 104 UUID_SERVCLASS_SAP, 105 UUID_SERVCLASS_PBAP_PCE, 106 UUID_SERVCLASS_PBAP_PSE, 107 UUID_SERVCLASS_PHONE_ACCESS, 108 UUID_SERVCLASS_HEADSET_HS, 109 UUID_SERVCLASS_PNP_INFORMATION, 110 /* UUID_SERVCLASS_GENERIC_NETWORKING, */ 111 /* UUID_SERVCLASS_GENERIC_FILETRANSFER, */ 112 /* UUID_SERVCLASS_GENERIC_AUDIO, */ 113 /* UUID_SERVCLASS_GENERIC_TELEPHONY, */ 114 /* UUID_SERVCLASS_UPNP_SERVICE, */ 115 /* UUID_SERVCLASS_UPNP_IP_SERVICE, */ 116 /* UUID_SERVCLASS_ESDP_UPNP_IP_PAN, */ 117 /* UUID_SERVCLASS_ESDP_UPNP_IP_LAP, */ 118 /* UUID_SERVCLASS_ESDP_UPNP_IP_L2CAP, */ 119 UUID_SERVCLASS_VIDEO_SOURCE, 120 UUID_SERVCLASS_VIDEO_SINK, 121 /* UUID_SERVCLASS_VIDEO_DISTRIBUTION */ 122 UUID_SERVCLASS_MESSAGE_ACCESS, 123 UUID_SERVCLASS_MESSAGE_NOTIFICATION, 124 UUID_SERVCLASS_HDP_SOURCE, 125 UUID_SERVCLASS_HDP_SINK 126 }; 127 #else 128 /* 129 If customized UUID look-up table needs to be used, 130 the followings should be defined in bdroid_buildcfg.h. 131 BTM_EIR_UUID_LKUP_TBL = <customized UUID list> 132 BTM_EIR_MAX_SERVICES = <number of UUID in list> 133 */ 134 #if (BTM_EIR_MAX_SERVICES == 0) 135 const UINT16 BTM_EIR_UUID_LKUP_TBL[]; 136 #else 137 extern UINT16 BTM_EIR_UUID_LKUP_TBL[BTM_EIR_MAX_SERVICES]; 138 #endif 139 #endif 140 #endif /* BTM_EIR_UUID_LKUP_TBL*/ 141 142 /********************************************************************************/ 143 /* L O C A L F U N C T I O N P R O T O T Y P E S */ 144 /********************************************************************************/ 145 static void btm_initiate_inquiry (tBTM_INQUIRY_VAR_ST *p_inq); 146 static tBTM_STATUS btm_set_inq_event_filter (UINT8 filter_cond_type, tBTM_INQ_FILT_COND *p_filt_cond); 147 static void btm_clr_inq_result_flt (void); 148 149 #if ((BTM_EIR_SERVER_INCLUDED == TRUE)||(BTM_EIR_CLIENT_INCLUDED == TRUE)) 150 static UINT8 btm_convert_uuid_to_eir_service( UINT16 uuid16 ); 151 #endif 152 #if (BTM_EIR_CLIENT_INCLUDED == TRUE) 153 static void btm_set_eir_uuid( UINT8 *p_eir, tBTM_INQ_RESULTS *p_results ); 154 static UINT8 *btm_eir_get_uuid_list( UINT8 *p_eir, UINT8 uuid_size, 155 UINT8 *p_num_uuid, UINT8 *p_uuid_list_type ); 156 static UINT16 btm_convert_uuid_to_uuid16( UINT8 *p_uuid, UINT8 uuid_size ); 157 #endif 158 159 /******************************************************************************* 160 ** 161 ** Function BTM_SetDiscoverability 162 ** 163 ** Description This function is called to set the device into or out of 164 ** discoverable mode. Discoverable mode means inquiry 165 ** scans are enabled. If a value of '0' is entered for window or 166 ** interval, the default values are used. 167 ** 168 ** Returns BTM_SUCCESS if successful 169 ** BTM_BUSY if a setting of the filter is already in progress 170 ** BTM_NO_RESOURCES if couldn't get a memory pool buffer 171 ** BTM_ILLEGAL_VALUE if a bad parameter was detected 172 ** BTM_WRONG_MODE if the device is not up. 173 ** 174 *******************************************************************************/ 175 tBTM_STATUS BTM_SetDiscoverability (UINT16 inq_mode, UINT16 window, UINT16 interval) 176 { 177 UINT8 scan_mode = 0; 178 UINT16 service_class; 179 UINT8 *p_cod; 180 UINT8 major, minor; 181 DEV_CLASS cod; 182 LAP temp_lap[2]; 183 BOOLEAN is_limited; 184 BOOLEAN cod_limited; 185 186 BTM_TRACE_API0 ("BTM_SetDiscoverability"); 187 #if (BLE_INCLUDED == TRUE && BLE_INCLUDED == TRUE) 188 if (HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 189 { 190 if (btm_ble_set_discoverability((UINT16)(inq_mode)) 191 == BTM_SUCCESS) 192 { 193 btm_cb.btm_inq_vars.discoverable_mode &= (~BTM_BLE_DISCOVERABLE_MASK); 194 btm_cb.btm_inq_vars.discoverable_mode |= (inq_mode & BTM_BLE_CONNECTABLE_MASK); 195 } 196 } 197 inq_mode &= ~BTM_BLE_DISCOVERABLE_MASK; 198 #endif 199 200 /*** Check mode parameter ***/ 201 if (inq_mode > BTM_MAX_DISCOVERABLE) 202 return (BTM_ILLEGAL_VALUE); 203 204 /* Make sure the controller is active */ 205 if (btm_cb.devcb.state < BTM_DEV_STATE_READY) 206 return (BTM_DEV_RESET); 207 208 /* If the window and/or interval is '0', set to default values */ 209 if (!window) 210 window = BTM_DEFAULT_DISC_WINDOW; 211 212 if (!interval) 213 interval = BTM_DEFAULT_DISC_INTERVAL; 214 215 BTM_TRACE_API3 ("BTM_SetDiscoverability: mode %d [NonDisc-0, Lim-1, Gen-2], window 0x%04x, interval 0x%04x", 216 inq_mode, window, interval); 217 218 /*** Check for valid window and interval parameters ***/ 219 /*** Only check window and duration if mode is connectable ***/ 220 if (inq_mode != BTM_NON_DISCOVERABLE) 221 { 222 /* window must be less than or equal to interval */ 223 if (window < HCI_MIN_INQUIRYSCAN_WINDOW || 224 window > HCI_MAX_INQUIRYSCAN_WINDOW || 225 interval < HCI_MIN_INQUIRYSCAN_INTERVAL || 226 interval > HCI_MAX_INQUIRYSCAN_INTERVAL || 227 window > interval) 228 { 229 return (BTM_ILLEGAL_VALUE); 230 } 231 } 232 233 /* Set the IAC if needed */ 234 if (inq_mode != BTM_NON_DISCOVERABLE) 235 { 236 if (inq_mode & BTM_LIMITED_DISCOVERABLE) 237 { 238 /* Use the GIAC and LIAC codes for limited discoverable mode */ 239 memcpy (temp_lap[0], limited_inq_lap, LAP_LEN); 240 memcpy (temp_lap[1], general_inq_lap, LAP_LEN); 241 242 if (!btsnd_hcic_write_cur_iac_lap (2, (LAP * const) temp_lap)) 243 return (BTM_NO_RESOURCES); /* Cannot continue */ 244 } 245 else 246 { 247 if (!btsnd_hcic_write_cur_iac_lap (1, (LAP * const) &general_inq_lap)) 248 return (BTM_NO_RESOURCES); /* Cannot continue */ 249 } 250 251 scan_mode |= HCI_INQUIRY_SCAN_ENABLED; 252 } 253 254 /* Send down the inquiry scan window and period if changed */ 255 if ((window != btm_cb.btm_inq_vars.inq_scan_window) || 256 (interval != btm_cb.btm_inq_vars.inq_scan_period)) 257 { 258 if (btsnd_hcic_write_inqscan_cfg (interval, window)) 259 { 260 btm_cb.btm_inq_vars.inq_scan_window = window; 261 btm_cb.btm_inq_vars.inq_scan_period = interval; 262 } 263 else 264 return (BTM_NO_RESOURCES); 265 } 266 267 if (btm_cb.btm_inq_vars.connectable_mode & BTM_CONNECTABLE_MASK) 268 scan_mode |= HCI_PAGE_SCAN_ENABLED; 269 270 if (btsnd_hcic_write_scan_enable (scan_mode)) 271 { 272 btm_cb.btm_inq_vars.discoverable_mode &= (~BTM_DISCOVERABLE_MASK); 273 btm_cb.btm_inq_vars.discoverable_mode |= inq_mode; 274 } 275 else 276 return (BTM_NO_RESOURCES); 277 278 /* Change the service class bit if mode has changed */ 279 p_cod = BTM_ReadDeviceClass(); 280 BTM_COD_SERVICE_CLASS(service_class, p_cod); 281 is_limited = (inq_mode & BTM_LIMITED_DISCOVERABLE) ? TRUE : FALSE; 282 cod_limited = (service_class & BTM_COD_SERVICE_LMTD_DISCOVER) ? TRUE : FALSE; 283 if (is_limited ^ cod_limited) 284 { 285 BTM_COD_MINOR_CLASS(minor, p_cod ); 286 BTM_COD_MAJOR_CLASS(major, p_cod ); 287 if (is_limited) 288 service_class |= BTM_COD_SERVICE_LMTD_DISCOVER; 289 else 290 service_class &= ~BTM_COD_SERVICE_LMTD_DISCOVER; 291 292 FIELDS_TO_COD(cod, minor, major, service_class); 293 (void) BTM_SetDeviceClass (cod); 294 } 295 296 return (BTM_SUCCESS); 297 } 298 299 /******************************************************************************* 300 ** 301 ** Function BTM_SetInquiryScanType 302 ** 303 ** Description This function is called to set the iquiry scan-type to 304 ** standard or interlaced. 305 ** 306 ** Returns BTM_SUCCESS if successful 307 ** BTM_MODE_UNSUPPORTED if not a 1.2 device 308 ** BTM_WRONG_MODE if the device is not up. 309 ** 310 *******************************************************************************/ 311 tBTM_STATUS BTM_SetInquiryScanType (UINT16 scan_type) 312 { 313 314 BTM_TRACE_API0 ("BTM_SetInquiryScanType"); 315 if (scan_type != BTM_SCAN_TYPE_STANDARD && scan_type != BTM_SCAN_TYPE_INTERLACED) 316 return (BTM_ILLEGAL_VALUE); 317 318 /* whatever app wants if device is not 1.2 scan type should be STANDARD */ 319 if (!HCI_LMP_INTERLACED_INQ_SCAN_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_0])) 320 return (BTM_MODE_UNSUPPORTED); 321 322 /* Check for scan type if configuration has been changed */ 323 if (scan_type != btm_cb.btm_inq_vars.inq_scan_type) 324 { 325 if (BTM_IsDeviceUp()) 326 { 327 if (btsnd_hcic_write_inqscan_type ((UINT8)scan_type)) 328 btm_cb.btm_inq_vars.inq_scan_type = scan_type; 329 else 330 return (BTM_NO_RESOURCES); 331 } 332 else return (BTM_WRONG_MODE); 333 } 334 return (BTM_SUCCESS); 335 } 336 337 /******************************************************************************* 338 ** 339 ** Function BTM_SetPageScanType 340 ** 341 ** Description This function is called to set the page scan-type to 342 ** standard or interlaced. 343 ** 344 ** Returns BTM_SUCCESS if successful 345 ** BTM_MODE_UNSUPPORTED if not a 1.2 device 346 ** BTM_WRONG_MODE if the device is not up. 347 ** 348 *******************************************************************************/ 349 tBTM_STATUS BTM_SetPageScanType (UINT16 scan_type) 350 { 351 BTM_TRACE_API0 ("BTM_SetPageScanType"); 352 if (scan_type != BTM_SCAN_TYPE_STANDARD && scan_type != BTM_SCAN_TYPE_INTERLACED) 353 return (BTM_ILLEGAL_VALUE); 354 355 /* whatever app wants if device is not 1.2 scan type should be STANDARD */ 356 if (!HCI_LMP_INTERLACED_PAGE_SCAN_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_0])) 357 return (BTM_MODE_UNSUPPORTED); 358 359 /* Check for scan type if configuration has been changed */ 360 if (scan_type != btm_cb.btm_inq_vars.page_scan_type) 361 { 362 if (BTM_IsDeviceUp()) 363 { 364 if (btsnd_hcic_write_pagescan_type ((UINT8)scan_type)) 365 btm_cb.btm_inq_vars.page_scan_type = scan_type; 366 else 367 return (BTM_NO_RESOURCES); 368 } 369 else return (BTM_WRONG_MODE); 370 } 371 return (BTM_SUCCESS); 372 } 373 374 375 /******************************************************************************* 376 ** 377 ** Function BTM_SetInquiryMode 378 ** 379 ** Description This function is called to set standard or with RSSI 380 ** mode of the inquiry for local device. 381 ** 382 ** Output Params: mode - standard, with RSSI, extended 383 ** 384 ** Returns BTM_SUCCESS if successful 385 ** BTM_NO_RESOURCES if couldn't get a memory pool buffer 386 ** BTM_ILLEGAL_VALUE if a bad parameter was detected 387 ** BTM_WRONG_MODE if the device is not up. 388 ** 389 *******************************************************************************/ 390 tBTM_STATUS BTM_SetInquiryMode (UINT8 mode) 391 { 392 BTM_TRACE_API0 ("BTM_SetInquiryMode"); 393 if (mode == BTM_INQ_RESULT_STANDARD) 394 { 395 /* mandatory mode */ 396 } 397 else if (mode == BTM_INQ_RESULT_WITH_RSSI) 398 { 399 if (!HCI_LMP_INQ_RSSI_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_0])) 400 return (BTM_MODE_UNSUPPORTED); 401 } 402 #if (( BTM_EIR_CLIENT_INCLUDED == TRUE )||( BTM_EIR_SERVER_INCLUDED == TRUE )) 403 else if (mode == BTM_INQ_RESULT_EXTENDED) 404 { 405 if (!HCI_EXT_INQ_RSP_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_0])) 406 return (BTM_MODE_UNSUPPORTED); 407 } 408 #endif 409 else 410 return (BTM_ILLEGAL_VALUE); 411 412 if (!BTM_IsDeviceUp()) 413 return (BTM_WRONG_MODE); 414 415 if (!btsnd_hcic_write_inquiry_mode (mode)) 416 return (BTM_NO_RESOURCES); 417 418 return (BTM_SUCCESS); 419 } 420 421 /******************************************************************************* 422 ** 423 ** Function BTM_ReadDiscoverability 424 ** 425 ** Description This function is called to read the current discoverability 426 ** mode of the device. 427 ** 428 ** Output Params: p_window - current inquiry scan duration 429 ** p_interval - current inquiry scan interval 430 ** 431 ** Returns BTM_NON_DISCOVERABLE, BTM_LIMITED_DISCOVERABLE, or 432 ** BTM_GENERAL_DISCOVERABLE 433 ** 434 *******************************************************************************/ 435 UINT16 BTM_ReadDiscoverability (UINT16 *p_window, UINT16 *p_interval) 436 { 437 BTM_TRACE_API0 ("BTM_ReadDiscoverability"); 438 if (p_window) 439 *p_window = btm_cb.btm_inq_vars.inq_scan_window; 440 441 if (p_interval) 442 *p_interval = btm_cb.btm_inq_vars.inq_scan_period; 443 444 return (btm_cb.btm_inq_vars.discoverable_mode); 445 } 446 447 448 /******************************************************************************* 449 ** 450 ** Function BTM_SetPeriodicInquiryMode 451 ** 452 ** Description This function is called to set the device periodic inquiry mode. 453 ** If the duration is zero, the periodic inquiry mode is cancelled. 454 ** 455 ** Note: We currently do not allow concurrent inquiry and periodic inquiry. 456 ** 457 ** Parameters: p_inqparms - pointer to the inquiry information 458 ** mode - GENERAL or LIMITED inquiry 459 ** duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED) 460 ** max_resps - maximum amount of devices to search for before ending the inquiry 461 ** filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or 462 ** BTM_FILTER_COND_BD_ADDR 463 ** filter_cond - value for the filter (based on filter_cond_type) 464 ** 465 ** max_delay - maximum amount of time between successive inquiries 466 ** min_delay - minimum amount of time between successive inquiries 467 ** p_results_cb - callback returning pointer to results (tBTM_INQ_RESULTS) 468 ** 469 ** Returns BTM_CMD_STARTED if successfully started 470 ** BTM_ILLEGAL_VALUE if a bad parameter is detected 471 ** BTM_NO_RESOURCES if could not allocate a message buffer 472 ** BTM_SUCCESS - if cancelling the periodic inquiry 473 ** BTM_BUSY - if an inquiry is already active 474 ** BTM_WRONG_MODE if the device is not up. 475 ** 476 *******************************************************************************/ 477 tBTM_STATUS BTM_SetPeriodicInquiryMode (tBTM_INQ_PARMS *p_inqparms, UINT16 max_delay, 478 UINT16 min_delay, tBTM_INQ_RESULTS_CB *p_results_cb) 479 { 480 tBTM_STATUS status; 481 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 482 483 BTM_TRACE_API6 ("BTM_SetPeriodicInquiryMode: mode: %d, dur: %d, rsps: %d, flt: %d, min: %d, max: %d", 484 p_inqparms->mode, p_inqparms->duration, p_inqparms->max_resps, 485 p_inqparms->filter_cond_type, min_delay, max_delay); 486 487 /*** Make sure the device is ready ***/ 488 if (!BTM_IsDeviceUp()) 489 return (BTM_WRONG_MODE); 490 491 /* Only one active inquiry is allowed in this implementation. 492 Also do not allow an inquiry if the inquiry filter is being updated */ 493 if (p_inq->inq_active || p_inq->inqfilt_active) 494 return (BTM_BUSY); 495 496 /* If illegal parameters return FALSE */ 497 if (p_inqparms->mode != BTM_GENERAL_INQUIRY && 498 p_inqparms->mode != BTM_LIMITED_INQUIRY) 499 return (BTM_ILLEGAL_VALUE); 500 501 /* Verify the parameters for this command */ 502 if (p_inqparms->duration < BTM_MIN_INQUIRY_LEN || 503 p_inqparms->duration > BTM_MAX_INQUIRY_LENGTH || 504 min_delay <= p_inqparms->duration || 505 min_delay < BTM_PER_INQ_MIN_MIN_PERIOD || 506 min_delay > BTM_PER_INQ_MAX_MIN_PERIOD || 507 max_delay <= min_delay || 508 max_delay < BTM_PER_INQ_MIN_MAX_PERIOD) 509 /* max_delay > BTM_PER_INQ_MAX_MAX_PERIOD)*/ 510 /* BTM_PER_INQ_MAX_MAX_PERIOD set to 1's in all bits. Condition resulting in false always*/ 511 { 512 return (BTM_ILLEGAL_VALUE); 513 } 514 515 /* Save the inquiry parameters to be used upon the completion of setting/clearing the inquiry filter */ 516 p_inq->inqparms = *p_inqparms; 517 p_inq->per_min_delay = min_delay; 518 p_inq->per_max_delay = max_delay; 519 p_inq->inq_cmpl_info.num_resp = 0; /* Clear the results counter */ 520 p_inq->p_inq_results_cb = p_results_cb; 521 522 p_inq->inq_active = (UINT8)((p_inqparms->mode == BTM_LIMITED_INQUIRY) ? 523 (BTM_LIMITED_INQUIRY_ACTIVE | BTM_PERIODIC_INQUIRY_ACTIVE) : 524 (BTM_GENERAL_INQUIRY_ACTIVE | BTM_PERIODIC_INQUIRY_ACTIVE)); 525 526 #if (defined(BTM_BYPASS_EVENT_FILTERING) && BTM_BYPASS_EVENT_FILTERING == TRUE) 527 BTM_TRACE_WARNING0("BTM: Bypassing event filtering..."); 528 529 p_inq->state = BTM_INQ_ACTIVE_STATE; 530 p_inq->inqfilt_active = FALSE; 531 btm_initiate_inquiry (p_inq); 532 status = BTM_CMD_STARTED; 533 #else 534 /* If a filter is specified, then save it for later and clear the current filter. 535 The setting of the filter is done upon completion of clearing of the previous 536 filter. 537 */ 538 if (p_inqparms->filter_cond_type != BTM_CLR_INQUIRY_FILTER) 539 { 540 p_inq->state = BTM_INQ_CLR_FILT_STATE; 541 p_inqparms->filter_cond_type = BTM_CLR_INQUIRY_FILTER; 542 } 543 else /* The filter is not being used so simply clear it; the inquiry can start after this operation */ 544 p_inq->state = BTM_INQ_SET_FILT_STATE; 545 546 /* Before beginning the inquiry the current filter must be cleared, so initiate the command */ 547 if ((status = btm_set_inq_event_filter (p_inqparms->filter_cond_type, &p_inqparms->filter_cond)) != BTM_CMD_STARTED) 548 { 549 /* If set filter command is not succesful reset the state */ 550 p_inq->p_inq_results_cb = NULL; 551 p_inq->state = BTM_INQ_INACTIVE_STATE; 552 553 } 554 555 #endif 556 return (status); 557 } 558 559 560 /******************************************************************************* 561 ** 562 ** Function BTM_CancelPeriodicInquiry 563 ** 564 ** Description This function cancels a periodic inquiry 565 ** 566 ** Returns 567 ** BTM_NO_RESOURCES if could not allocate a message buffer 568 ** BTM_SUCCESS - if cancelling the periodic inquiry 569 ** BTM_WRONG_MODE if the device is not up. 570 ** 571 *******************************************************************************/ 572 tBTM_STATUS BTM_CancelPeriodicInquiry(void) 573 { 574 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 575 tBTM_STATUS status = BTM_SUCCESS; 576 BTM_TRACE_API0 ("BTM_CancelPeriodicInquiry called"); 577 578 /*** Make sure the device is ready ***/ 579 if (!BTM_IsDeviceUp()) 580 return (BTM_WRONG_MODE); 581 582 /* Only cancel if one is active */ 583 if (btm_cb.btm_inq_vars.inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) 584 { 585 btm_cb.btm_inq_vars.inq_active = BTM_INQUIRY_INACTIVE; 586 btm_cb.btm_inq_vars.p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL; 587 588 if (!btsnd_hcic_exit_per_inq ()) 589 status = BTM_NO_RESOURCES; 590 591 /* If the event filter is in progress, mark it so that the processing of the return 592 event will be ignored */ 593 if(p_inq->inqfilt_active) 594 p_inq->pending_filt_complete_event++; 595 596 p_inq->inqfilt_active = FALSE; 597 p_inq->inq_counter++; 598 } 599 600 return (status); 601 } 602 603 604 /******************************************************************************* 605 ** 606 ** Function BTM_SetConnectability 607 ** 608 ** Description This function is called to set the device into or out of 609 ** connectable mode. Discoverable mode means page scans enabled. 610 ** 611 ** Returns BTM_SUCCESS if successful 612 ** BTM_ILLEGAL_VALUE if a bad parameter is detected 613 ** BTM_NO_RESOURCES if could not allocate a message buffer 614 ** BTM_WRONG_MODE if the device is not up. 615 ** 616 *******************************************************************************/ 617 tBTM_STATUS BTM_SetConnectability (UINT16 page_mode, UINT16 window, UINT16 interval) 618 { 619 UINT8 scan_mode = 0; 620 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 621 622 BTM_TRACE_API0 ("BTM_SetConnectability"); 623 624 #if (BLE_INCLUDED == TRUE && BLE_INCLUDED == TRUE) 625 if (HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 626 { 627 if (btm_ble_set_connectability(page_mode) != BTM_SUCCESS) 628 { 629 return BTM_NO_RESOURCES; 630 } 631 p_inq->connectable_mode &= (~BTM_BLE_CONNECTABLE_MASK); 632 p_inq->connectable_mode |= (page_mode & BTM_BLE_CONNECTABLE_MASK); 633 } 634 page_mode &= ~BTM_BLE_CONNECTABLE_MASK; 635 #endif 636 637 /*** Check mode parameter ***/ 638 if (page_mode != BTM_NON_CONNECTABLE && page_mode != BTM_CONNECTABLE) 639 return (BTM_ILLEGAL_VALUE); 640 641 /* Make sure the controller is active */ 642 if (btm_cb.devcb.state < BTM_DEV_STATE_READY) 643 return (BTM_DEV_RESET); 644 645 /* If the window and/or interval is '0', set to default values */ 646 if (!window) 647 window = BTM_DEFAULT_CONN_WINDOW; 648 649 if (!interval) 650 interval = BTM_DEFAULT_CONN_INTERVAL; 651 652 BTM_TRACE_API3 ("BTM_SetConnectability: mode %d [NonConn-0, Conn-1], window 0x%04x, interval 0x%04x", 653 page_mode, window, interval); 654 655 /*** Check for valid window and interval parameters ***/ 656 /*** Only check window and duration if mode is connectable ***/ 657 if (page_mode == BTM_CONNECTABLE) 658 { 659 /* window must be less than or equal to interval */ 660 if (window < HCI_MIN_PAGESCAN_WINDOW || 661 window > HCI_MAX_PAGESCAN_WINDOW || 662 interval < HCI_MIN_PAGESCAN_INTERVAL || 663 interval > HCI_MAX_PAGESCAN_INTERVAL || 664 window > interval) 665 { 666 return (BTM_ILLEGAL_VALUE); 667 } 668 669 scan_mode |= HCI_PAGE_SCAN_ENABLED; 670 } 671 672 if ((window != p_inq->page_scan_window) || 673 (interval != p_inq->page_scan_period)) 674 { 675 p_inq->page_scan_window = window; 676 p_inq->page_scan_period = interval; 677 if (!btsnd_hcic_write_pagescan_cfg (interval, window)) 678 return (BTM_NO_RESOURCES); 679 } 680 681 /* Keep the inquiry scan as previouosly set */ 682 if (p_inq->discoverable_mode & BTM_DISCOVERABLE_MASK) 683 scan_mode |= HCI_INQUIRY_SCAN_ENABLED; 684 685 if (btsnd_hcic_write_scan_enable (scan_mode)) 686 { 687 p_inq->connectable_mode &= (~BTM_CONNECTABLE_MASK); 688 p_inq->connectable_mode |= page_mode; 689 690 return (BTM_SUCCESS); 691 } 692 693 return (BTM_NO_RESOURCES); 694 } 695 696 697 /******************************************************************************* 698 ** 699 ** Function BTM_ReadConnectability 700 ** 701 ** Description This function is called to read the current discoverability 702 ** mode of the device. 703 ** Output Params p_window - current page scan duration 704 ** p_interval - current time between page scans 705 ** 706 ** Returns BTM_NON_CONNECTABLE or BTM_CONNECTABLE 707 ** 708 *******************************************************************************/ 709 UINT16 BTM_ReadConnectability (UINT16 *p_window, UINT16 *p_interval) 710 { 711 BTM_TRACE_API0 ("BTM_ReadConnectability"); 712 if (p_window) 713 *p_window = btm_cb.btm_inq_vars.page_scan_window; 714 715 if (p_interval) 716 *p_interval = btm_cb.btm_inq_vars.page_scan_period; 717 718 return (btm_cb.btm_inq_vars.connectable_mode); 719 } 720 721 722 723 /******************************************************************************* 724 ** 725 ** Function BTM_IsInquiryActive 726 ** 727 ** Description This function returns a bit mask of the current inquiry state 728 ** 729 ** Returns BTM_INQUIRY_INACTIVE if inactive (0) 730 ** BTM_LIMITED_INQUIRY_ACTIVE if a limted inquiry is active 731 ** BTM_GENERAL_INQUIRY_ACTIVE if a general inquiry is active 732 ** BTM_PERIODIC_INQUIRY_ACTIVE if a periodic inquiry is active 733 ** 734 *******************************************************************************/ 735 UINT16 BTM_IsInquiryActive (void) 736 { 737 BTM_TRACE_API0 ("BTM_IsInquiryActive"); 738 739 return(btm_cb.btm_inq_vars.inq_active); 740 } 741 742 743 744 /******************************************************************************* 745 ** 746 ** Function BTM_CancelInquiry 747 ** 748 ** Description This function cancels an inquiry if active 749 ** 750 ** Returns BTM_SUCCESS if successful 751 ** BTM_NO_RESOURCES if could not allocate a message buffer 752 ** BTM_WRONG_MODE if the device is not up. 753 ** 754 *******************************************************************************/ 755 tBTM_STATUS BTM_CancelInquiry(void) 756 { 757 tBTM_STATUS status = BTM_SUCCESS; 758 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 759 760 BTM_TRACE_API0 ("BTM_CancelInquiry called"); 761 762 /*** Make sure the device is ready ***/ 763 if (!BTM_IsDeviceUp()) 764 return (BTM_WRONG_MODE); 765 766 /* Only cancel if not in periodic mode, otherwise the caller should call BTM_CancelPeriodicMode */ 767 if ((p_inq->inq_active &BTM_INQUIRY_ACTIVE_MASK) != 0 && 768 (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE))) 769 { 770 p_inq->inq_active = BTM_INQUIRY_INACTIVE; 771 p_inq->state = BTM_INQ_INACTIVE_STATE; 772 p_inq->p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL; /* Do not notify caller anymore */ 773 p_inq->p_inq_cmpl_cb = (tBTM_CMPL_CB *) NULL; /* Do not notify caller anymore */ 774 775 /* If the event filter is in progress, mark it so that the processing of the return 776 event will be ignored */ 777 if (p_inq->inqfilt_active) 778 { 779 p_inq->inqfilt_active = FALSE; 780 p_inq->pending_filt_complete_event++; 781 } 782 /* Initiate the cancel inquiry */ 783 else 784 { 785 if ((p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK) != 0) 786 { 787 if (!btsnd_hcic_inq_cancel()) 788 status = BTM_NO_RESOURCES; 789 } 790 #if BLE_INCLUDED == TRUE 791 if ((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) 792 btm_ble_stop_scan(); 793 #endif 794 } 795 796 #if (defined(BTM_BUSY_LEVEL_CHANGE_INCLUDED) && BTM_BUSY_LEVEL_CHANGE_INCLUDED == TRUE) 797 /* Do not send the BUSY_LEVEL event yet. Wait for the cancel_complete event 798 * and then send the BUSY_LEVEL event 799 * btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT); 800 */ 801 #endif 802 803 p_inq->inq_counter++; 804 btm_clr_inq_result_flt(); 805 } 806 807 return (status); 808 } 809 810 811 /******************************************************************************* 812 ** 813 ** Function BTM_StartInquiry 814 ** 815 ** Description This function is called to start an inquiry. 816 ** 817 ** Parameters: p_inqparms - pointer to the inquiry information 818 ** mode - GENERAL or LIMITED inquiry, BR/LE bit mask seperately 819 ** duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED) 820 ** max_resps - maximum amount of devices to search for before ending the inquiry 821 ** filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or 822 ** BTM_FILTER_COND_BD_ADDR 823 ** filter_cond - value for the filter (based on filter_cond_type) 824 ** 825 ** p_results_cb - Pointer to the callback routine which gets called 826 ** upon receipt of an inquiry result. If this field is 827 ** NULL, the application is not notified. 828 ** 829 ** p_cmpl_cb - Pointer to the callback routine which gets called 830 ** upon completion. If this field is NULL, the 831 ** application is not notified when completed. 832 ** Returns tBTM_STATUS 833 ** BTM_CMD_STARTED if successfully initiated 834 ** BTM_BUSY if already in progress 835 ** BTM_ILLEGAL_VALUE if parameter(s) are out of range 836 ** BTM_NO_RESOURCES if could not allocate resources to start the command 837 ** BTM_WRONG_MODE if the device is not up. 838 ** 839 *******************************************************************************/ 840 tBTM_STATUS BTM_StartInquiry (tBTM_INQ_PARMS *p_inqparms, tBTM_INQ_RESULTS_CB *p_results_cb, 841 tBTM_CMPL_CB *p_cmpl_cb) 842 { 843 tBTM_STATUS status = BTM_CMD_STARTED; 844 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 845 846 BTM_TRACE_API4 ("BTM_StartInquiry: mode: %d, dur: %d, rsps: %d, flt: %d", 847 p_inqparms->mode, p_inqparms->duration, p_inqparms->max_resps, 848 p_inqparms->filter_cond_type); 849 850 /* Only one active inquiry is allowed in this implementation. 851 Also do not allow an inquiry if the inquiry filter is being updated */ 852 if (p_inq->inq_active || p_inq->inqfilt_active) 853 return (BTM_BUSY); 854 855 /*** Make sure the device is ready ***/ 856 if (!BTM_IsDeviceUp()) 857 return (BTM_WRONG_MODE); 858 859 if ((p_inqparms->mode & BTM_BR_INQUIRY_MASK)!= BTM_GENERAL_INQUIRY && 860 (p_inqparms->mode & BTM_BR_INQUIRY_MASK)!= BTM_LIMITED_INQUIRY 861 #if (BLE_INCLUDED == TRUE) 862 && (p_inqparms->mode & BTM_BLE_INQUIRY_MASK)!= BTM_BLE_GENERAL_INQUIRY 863 && (p_inqparms->mode & BTM_BLE_INQUIRY_MASK)!= BTM_BLE_LIMITED_INQUIRY 864 #endif 865 ) 866 return (BTM_ILLEGAL_VALUE); 867 868 /* Save the inquiry parameters to be used upon the completion of setting/clearing the inquiry filter */ 869 p_inq->inqparms = *p_inqparms; 870 871 /* Initialize the inquiry variables */ 872 p_inq->state = BTM_INQ_ACTIVE_STATE; 873 p_inq->p_inq_cmpl_cb = p_cmpl_cb; 874 p_inq->p_inq_results_cb = p_results_cb; 875 p_inq->inq_cmpl_info.num_resp = 0; /* Clear the results counter */ 876 p_inq->inq_active = p_inqparms->mode; 877 878 BTM_TRACE_DEBUG1("BTM_StartInquiry: p_inq->inq_active = 0x%02x", p_inq->inq_active); 879 880 /* start LE inquiry here if requested */ 881 #if BLE_INCLUDED == TRUE 882 if (p_inqparms->mode & BTM_BLE_INQUIRY_MASK) 883 { 884 if (!HCI_LE_HOST_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_1])) 885 { 886 p_inq->inqparms.mode &= ~ BTM_BLE_INQUIRY_MASK; 887 status = BTM_ILLEGAL_VALUE; 888 } 889 /* BLE for now does not support filter condition for inquiry */ 890 else if ((status = btm_ble_start_inquiry((UINT8)(p_inqparms->mode & BTM_BLE_INQUIRY_MASK), 891 p_inqparms->duration)) != BTM_CMD_STARTED) 892 { 893 BTM_TRACE_ERROR0("Err Starting LE Inquiry."); 894 p_inq->inqparms.mode &= ~ BTM_BLE_INQUIRY_MASK; 895 } 896 897 p_inqparms->mode &= ~BTM_BLE_INQUIRY_MASK; 898 899 BTM_TRACE_DEBUG1("BTM_StartInquiry: mode = %02x", p_inqparms->mode); 900 } 901 #endif /* end of BLE_INCLUDED */ 902 903 /* we're done with this routine if BR/EDR inquiry is not desired. */ 904 if ((p_inqparms->mode & BTM_BR_INQUIRY_MASK) == BTM_INQUIRY_NONE) 905 return status; 906 907 #if (defined(BTM_BYPASS_EVENT_FILTERING) && BTM_BYPASS_EVENT_FILTERING == TRUE) 908 BTM_TRACE_WARNING0("BTM: Bypassing event filtering..."); 909 p_inq->inqfilt_active = FALSE; 910 btm_initiate_inquiry (p_inq); 911 status = BTM_CMD_STARTED; 912 #else 913 /* If a filter is specified, then save it for later and clear the current filter. 914 The setting of the filter is done upon completion of clearing of the previous 915 filter. 916 */ 917 switch (p_inqparms->filter_cond_type) 918 { 919 case BTM_CLR_INQUIRY_FILTER: 920 p_inq->state = BTM_INQ_SET_FILT_STATE; 921 break; 922 923 case BTM_FILTER_COND_DEVICE_CLASS: 924 case BTM_FILTER_COND_BD_ADDR: 925 /* The filter is not being used so simply clear it; 926 the inquiry can start after this operation */ 927 p_inq->state = BTM_INQ_CLR_FILT_STATE; 928 p_inqparms->filter_cond_type = BTM_CLR_INQUIRY_FILTER; 929 /* =============>>>> adding LE filtering here ????? */ 930 break; 931 932 default: 933 return (BTM_ILLEGAL_VALUE); 934 } 935 936 /* Before beginning the inquiry the current filter must be cleared, so initiate the command */ 937 if ((status = btm_set_inq_event_filter (p_inqparms->filter_cond_type, &p_inqparms->filter_cond)) != BTM_CMD_STARTED) 938 p_inq->state = BTM_INQ_INACTIVE_STATE; 939 #endif 940 return (status); 941 } 942 943 944 /******************************************************************************* 945 ** 946 ** Function BTM_ReadRemoteDeviceName 947 ** 948 ** Description This function initiates a remote device HCI command to the 949 ** controller and calls the callback when the process has completed. 950 ** 951 ** Input Params: remote_bda - device address of name to retrieve 952 ** p_cb - callback function called when BTM_CMD_STARTED 953 ** is returned. 954 ** A pointer to tBTM_REMOTE_DEV_NAME is passed to the 955 ** callback. 956 ** 957 ** Returns 958 ** BTM_CMD_STARTED is returned if the request was successfully sent 959 ** to HCI. 960 ** BTM_BUSY if already in progress 961 ** BTM_UNKNOWN_ADDR if device address is bad 962 ** BTM_NO_RESOURCES if could not allocate resources to start the command 963 ** BTM_WRONG_MODE if the device is not up. 964 ** 965 *******************************************************************************/ 966 tBTM_STATUS BTM_ReadRemoteDeviceName (BD_ADDR remote_bda, tBTM_CMPL_CB *p_cb) 967 { 968 tBTM_INQ_INFO *p_cur = NULL; 969 tINQ_DB_ENT *p_i; 970 971 #if BLE_INCLUDED == TRUE 972 tBT_DEVICE_TYPE dev_type; 973 tBLE_ADDR_TYPE addr_type; 974 #endif 975 976 BTM_TRACE_API6 ("BTM_ReadRemoteDeviceName: bd addr [%02x%02x%02x%02x%02x%02x]", 977 remote_bda[0], remote_bda[1], remote_bda[2], 978 remote_bda[3], remote_bda[4], remote_bda[5]); 979 980 /* Use the remote device's clock offset if it is in the local inquiry database */ 981 if ((p_i = btm_inq_db_find (remote_bda)) != NULL) 982 { 983 p_cur = &p_i->inq_info; 984 985 #if (BTM_INQ_GET_REMOTE_NAME == TRUE) 986 p_cur->remote_name_state = BTM_INQ_RMT_NAME_EMPTY; 987 #endif 988 } 989 BTM_TRACE_API0 ("no device found in inquiry db"); 990 991 #if (BLE_INCLUDED == TRUE) 992 BTM_ReadDevInfo(remote_bda, &dev_type, &addr_type); 993 if (dev_type == BT_DEVICE_TYPE_BLE) 994 { 995 return btm_ble_read_remote_name(remote_bda, p_cur, p_cb); 996 } 997 else 998 #endif 999 1000 return (btm_initiate_rem_name (remote_bda, p_cur, BTM_RMT_NAME_EXT, 1001 BTM_EXT_RMT_NAME_TIMEOUT, p_cb)); 1002 } 1003 1004 /******************************************************************************* 1005 ** 1006 ** Function BTM_CancelRemoteDeviceName 1007 ** 1008 ** Description This function initiates the cancel request for the specified 1009 ** remote device. 1010 ** 1011 ** Input Params: None 1012 ** 1013 ** Returns 1014 ** BTM_CMD_STARTED is returned if the request was successfully sent 1015 ** to HCI. 1016 ** BTM_NO_RESOURCES if could not allocate resources to start the command 1017 ** BTM_WRONG_MODE if there is not an active remote name request. 1018 ** 1019 *******************************************************************************/ 1020 tBTM_STATUS BTM_CancelRemoteDeviceName (void) 1021 { 1022 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1023 1024 #if BLE_INCLUDED == TRUE 1025 tBT_DEVICE_TYPE dev_type; 1026 tBLE_ADDR_TYPE addr_type; 1027 #endif 1028 1029 BTM_TRACE_API0 ("BTM_CancelRemoteDeviceName()"); 1030 1031 /* Make sure there is not already one in progress */ 1032 if (p_inq->remname_active) 1033 { 1034 #if BLE_INCLUDED == TRUE 1035 BTM_ReadDevInfo(p_inq->remname_bda, &dev_type, &addr_type); 1036 if (dev_type == BT_DEVICE_TYPE_BLE) 1037 { 1038 if (btm_ble_cancel_remote_name(p_inq->remname_bda)) 1039 return (BTM_CMD_STARTED); 1040 else 1041 return (BTM_UNKNOWN_ADDR); 1042 } 1043 else 1044 #endif 1045 if (btsnd_hcic_rmt_name_req_cancel (p_inq->remname_bda)) 1046 return (BTM_CMD_STARTED); 1047 else 1048 return (BTM_NO_RESOURCES); 1049 } 1050 else 1051 return (BTM_WRONG_MODE); 1052 } 1053 1054 /******************************************************************************* 1055 ** 1056 ** Function BTM_InqFirstResult 1057 ** 1058 ** Description This function looks through the inquiry database for the first 1059 ** used entrysince the LAST inquiry. This is used in conjunction 1060 ** with BTM_InqNext by applications as a way to walk through the 1061 ** inquiry results database. 1062 ** 1063 ** Returns pointer to first in-use entry, or NULL if DB is empty 1064 ** 1065 *******************************************************************************/ 1066 tBTM_INQ_INFO *BTM_InqFirstResult (void) 1067 { 1068 UINT16 xx; 1069 tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db; 1070 UINT32 cur_inq_count = btm_cb.btm_inq_vars.inq_counter - 1; 1071 1072 for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) 1073 { 1074 if (p_ent->in_use && p_ent->inq_count == cur_inq_count) 1075 return (&p_ent->inq_info); 1076 } 1077 1078 /* If here, no used entry found */ 1079 return ((tBTM_INQ_INFO *)NULL); 1080 } 1081 1082 1083 /******************************************************************************* 1084 ** 1085 ** Function BTM_InqNextResult 1086 ** 1087 ** Description This function looks through the inquiry database for the next 1088 ** used entrysince the LAST inquiry. If the input parameter is NULL, 1089 ** the first entry is returned. 1090 ** 1091 ** Returns pointer to next in-use entry, or NULL if no more found. 1092 ** 1093 *******************************************************************************/ 1094 tBTM_INQ_INFO *BTM_InqNextResult (tBTM_INQ_INFO *p_cur) 1095 { 1096 tINQ_DB_ENT *p_ent; 1097 UINT16 inx; 1098 UINT32 cur_inq_count = btm_cb.btm_inq_vars.inq_counter - 1; 1099 1100 if (p_cur) 1101 { 1102 p_ent = (tINQ_DB_ENT *) ((UINT8 *)p_cur - offsetof (tINQ_DB_ENT, inq_info)); 1103 inx = (UINT16)((p_ent - btm_cb.btm_inq_vars.inq_db) + 1); 1104 1105 for (p_ent = &btm_cb.btm_inq_vars.inq_db[inx]; inx < BTM_INQ_DB_SIZE; inx++, p_ent++) 1106 { 1107 if (p_ent->in_use && p_ent->inq_count == cur_inq_count) 1108 return (&p_ent->inq_info); 1109 } 1110 1111 /* If here, more entries found */ 1112 return ((tBTM_INQ_INFO *)NULL); 1113 } 1114 else 1115 return (BTM_InqDbFirst()); 1116 } 1117 1118 1119 /******************************************************************************* 1120 ** 1121 ** Function BTM_InqDbRead 1122 ** 1123 ** Description This function looks through the inquiry database for a match 1124 ** based on Bluetooth Device Address. This is the application's 1125 ** interface to get the inquiry details of a specific BD address. 1126 ** 1127 ** Returns pointer to entry, or NULL if not found 1128 ** 1129 *******************************************************************************/ 1130 tBTM_INQ_INFO *BTM_InqDbRead (BD_ADDR p_bda) 1131 { 1132 UINT16 xx; 1133 tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db; 1134 1135 BTM_TRACE_API6 ("BTM_InqDbRead: bd addr [%02x%02x%02x%02x%02x%02x]", 1136 p_bda[0], p_bda[1], p_bda[2], p_bda[3], p_bda[4], p_bda[5]); 1137 1138 for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) 1139 { 1140 if ((p_ent->in_use) && (!memcmp (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN))) 1141 return (&p_ent->inq_info); 1142 } 1143 1144 /* If here, not found */ 1145 return ((tBTM_INQ_INFO *)NULL); 1146 } 1147 1148 1149 /******************************************************************************* 1150 ** 1151 ** Function BTM_InqDbFirst 1152 ** 1153 ** Description This function looks through the inquiry database for the first 1154 ** used entry, and returns that. This is used in conjunction with 1155 ** BTM_InqDbNext by applications as a way to walk through the 1156 ** inquiry database. 1157 ** 1158 ** Returns pointer to first in-use entry, or NULL if DB is empty 1159 ** 1160 *******************************************************************************/ 1161 tBTM_INQ_INFO *BTM_InqDbFirst (void) 1162 { 1163 UINT16 xx; 1164 tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db; 1165 1166 for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) 1167 { 1168 if (p_ent->in_use) 1169 return (&p_ent->inq_info); 1170 } 1171 1172 /* If here, no used entry found */ 1173 return ((tBTM_INQ_INFO *)NULL); 1174 } 1175 1176 1177 /******************************************************************************* 1178 ** 1179 ** Function BTM_InqDbNext 1180 ** 1181 ** Description This function looks through the inquiry database for the next 1182 ** used entry, and returns that. If the input parameter is NULL, 1183 ** the first entry is returned. 1184 ** 1185 ** Returns pointer to next in-use entry, or NULL if no more found. 1186 ** 1187 *******************************************************************************/ 1188 tBTM_INQ_INFO *BTM_InqDbNext (tBTM_INQ_INFO *p_cur) 1189 { 1190 tINQ_DB_ENT *p_ent; 1191 UINT16 inx; 1192 1193 if (p_cur) 1194 { 1195 p_ent = (tINQ_DB_ENT *) ((UINT8 *)p_cur - offsetof (tINQ_DB_ENT, inq_info)); 1196 inx = (UINT16)((p_ent - btm_cb.btm_inq_vars.inq_db) + 1); 1197 1198 for (p_ent = &btm_cb.btm_inq_vars.inq_db[inx]; inx < BTM_INQ_DB_SIZE; inx++, p_ent++) 1199 { 1200 if (p_ent->in_use) 1201 return (&p_ent->inq_info); 1202 } 1203 1204 /* If here, more entries found */ 1205 return ((tBTM_INQ_INFO *)NULL); 1206 } 1207 else 1208 return (BTM_InqDbFirst()); 1209 } 1210 1211 1212 /******************************************************************************* 1213 ** 1214 ** Function BTM_ClearInqDb 1215 ** 1216 ** Description This function is called to clear out a device or all devices 1217 ** from the inquiry database. 1218 ** 1219 ** Parameter p_bda - (input) BD_ADDR -> Address of device to clear 1220 ** (NULL clears all entries) 1221 ** 1222 ** Returns BTM_BUSY if an inquiry, get remote name, or event filter 1223 ** is active, otherwise BTM_SUCCESS 1224 ** 1225 *******************************************************************************/ 1226 tBTM_STATUS BTM_ClearInqDb (BD_ADDR p_bda) 1227 { 1228 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1229 1230 /* If an inquiry or remote name is in progress return busy */ 1231 if (p_inq->inq_active != BTM_INQUIRY_INACTIVE || 1232 p_inq->inqfilt_active) 1233 return (BTM_BUSY); 1234 1235 btm_clr_inq_db(p_bda); 1236 1237 return (BTM_SUCCESS); 1238 } 1239 1240 1241 /******************************************************************************* 1242 ** 1243 ** Function BTM_ReadNumInqDbEntries 1244 ** 1245 ** Returns This function returns the number of entries in the inquiry database. 1246 ** 1247 *******************************************************************************/ 1248 UINT8 BTM_ReadNumInqDbEntries (void) 1249 { 1250 UINT8 num_entries; 1251 UINT8 num_results; 1252 tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db; 1253 1254 for (num_entries = 0, num_results = 0; num_entries < BTM_INQ_DB_SIZE; num_entries++, p_ent++) 1255 { 1256 if (p_ent->in_use) 1257 num_results++; 1258 } 1259 1260 return (num_results); 1261 } 1262 1263 1264 /******************************************************************************* 1265 ** 1266 ** Function BTM_InquiryRegisterForChanges 1267 ** 1268 ** Returns This function is called to register a callback for when the 1269 ** inquiry database changes, i.e. new entry or entry deleted. 1270 ** 1271 *******************************************************************************/ 1272 tBTM_STATUS BTM_InquiryRegisterForChanges (tBTM_INQ_DB_CHANGE_CB *p_cb) 1273 { 1274 if (!p_cb) 1275 btm_cb.btm_inq_vars.p_inq_change_cb = NULL; 1276 else if (btm_cb.btm_inq_vars.p_inq_change_cb) 1277 return (BTM_BUSY); 1278 else 1279 btm_cb.btm_inq_vars.p_inq_change_cb = p_cb; 1280 1281 return (BTM_SUCCESS); 1282 } 1283 1284 1285 /******************************************************************************* 1286 ** 1287 ** Function BTM_SetInquiryFilterCallback 1288 ** 1289 ** Description Host can register to be asked whenever an inquiry result 1290 ** is received. If host does not like the device no name 1291 ** request is issued for the device 1292 ** 1293 ** Returns void 1294 ** 1295 *******************************************************************************/ 1296 void BTM_SetInquiryFilterCallback (tBTM_FILTER_CB *p_callback) 1297 { 1298 btm_cb.p_inq_filter_cb = p_callback; 1299 } 1300 1301 /******************************************************************************* 1302 ** 1303 ** Function BTM_ReadInquiryRspTxPower 1304 ** 1305 ** Description This command will read the inquiry Transmit Power level used 1306 ** to transmit the FHS and EIR data packets. 1307 ** This can be used directly in the Tx Power Level EIR data type. 1308 ** 1309 ** Returns BTM_SUCCESS if successful 1310 ** 1311 *******************************************************************************/ 1312 tBTM_STATUS BTM_ReadInquiryRspTxPower (tBTM_CMPL_CB *p_cb) 1313 { 1314 if (btm_cb.devcb.p_txpwer_cmpl_cb) 1315 return (BTM_BUSY); 1316 1317 btu_start_timer (&btm_cb.devcb.txpwer_timer, BTU_TTYPE_BTM_ACL, BTM_INQ_REPLY_TIMEOUT ); 1318 1319 1320 btm_cb.devcb.p_txpwer_cmpl_cb = p_cb; 1321 1322 if (!btsnd_hcic_read_inq_tx_power ()) 1323 { 1324 btm_cb.devcb.p_txpwer_cmpl_cb = NULL; 1325 btu_stop_timer (&btm_cb.devcb.txpwer_timer); 1326 return (BTM_NO_RESOURCES); 1327 } 1328 else 1329 return (BTM_CMD_STARTED); 1330 } 1331 /******************************************************************************* 1332 ** 1333 ** Function BTM_WriteInquiryTxPower 1334 ** 1335 ** Description This command is used to write the inquiry transmit power level 1336 ** used to transmit the inquiry (ID) data packets. The Controller 1337 ** should use the supported TX power level closest to the Tx_Power 1338 ** parameter. 1339 ** 1340 ** Returns BTM_SUCCESS if successful 1341 ** 1342 *******************************************************************************/ 1343 tBTM_STATUS BTM_WriteInquiryTxPower (INT8 tx_power) 1344 { 1345 tBTM_STATUS status = BTM_SUCCESS; 1346 1347 if (tx_power < BTM_MIN_INQ_TX_POWER || tx_power > BTM_MAX_INQ_TX_POWER) 1348 { 1349 status = BTM_ILLEGAL_VALUE; 1350 } 1351 else if (!btsnd_hcic_write_inq_tx_power(tx_power)) 1352 status = BTM_NO_RESOURCES; 1353 1354 return status; 1355 } 1356 /********************************************************************************* 1357 ********************************************************************************** 1358 ** ** 1359 ** BTM Internal Inquiry Functions ** 1360 ** ** 1361 ********************************************************************************** 1362 *********************************************************************************/ 1363 /******************************************************************************* 1364 ** 1365 ** Function btm_inq_db_reset 1366 ** 1367 ** Description This function is called at at reset to clear the inquiry 1368 ** database & pending callback. 1369 ** 1370 ** Returns void 1371 ** 1372 *******************************************************************************/ 1373 void btm_inq_db_reset (void) 1374 { 1375 tBTM_REMOTE_DEV_NAME rem_name; 1376 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1377 UINT8 num_responses; 1378 UINT8 temp_inq_active; 1379 tBTM_STATUS status; 1380 1381 btu_stop_timer (&p_inq->inq_timer_ent); 1382 1383 /* If an inquiry or periodic inquiry is active, reset the mode to inactive */ 1384 if (p_inq->inq_active != BTM_INQUIRY_INACTIVE) 1385 { 1386 temp_inq_active = p_inq->inq_active; /* Save so state can change BEFORE 1387 callback is called */ 1388 p_inq->inq_active = BTM_INQUIRY_INACTIVE; 1389 1390 /* If not a periodic inquiry, the complete callback must be called to notify caller */ 1391 if (temp_inq_active == BTM_LIMITED_INQUIRY_ACTIVE || 1392 temp_inq_active == BTM_GENERAL_INQUIRY_ACTIVE) 1393 { 1394 if (p_inq->p_inq_cmpl_cb) 1395 { 1396 num_responses = 0; 1397 (*p_inq->p_inq_cmpl_cb)(&num_responses); 1398 } 1399 } 1400 } 1401 1402 /* Cancel a remote name request if active, and notify the caller (if waiting) */ 1403 if (p_inq->remname_active ) 1404 { 1405 btu_stop_timer (&p_inq->rmt_name_timer_ent); 1406 p_inq->remname_active = FALSE; 1407 memset(p_inq->remname_bda, 0, BD_ADDR_LEN); 1408 1409 if (p_inq->p_remname_cmpl_cb) 1410 { 1411 rem_name.status = BTM_DEV_RESET; 1412 1413 (*p_inq->p_remname_cmpl_cb)(&rem_name); 1414 p_inq->p_remname_cmpl_cb = NULL; 1415 } 1416 } 1417 1418 /* Cancel an inquiry filter request if active, and notify the caller (if waiting) */ 1419 if (p_inq->inqfilt_active) 1420 { 1421 p_inq->inqfilt_active = FALSE; 1422 1423 if (p_inq->p_inqfilter_cmpl_cb) 1424 { 1425 status = BTM_DEV_RESET; 1426 (*p_inq->p_inqfilter_cmpl_cb)(&status); 1427 } 1428 } 1429 1430 p_inq->state = BTM_INQ_INACTIVE_STATE; 1431 p_inq->pending_filt_complete_event = 0; 1432 p_inq->p_inq_results_cb = NULL; 1433 btm_clr_inq_db(NULL); /* Clear out all the entries in the database */ 1434 btm_clr_inq_result_flt(); 1435 1436 p_inq->discoverable_mode = BTM_NON_DISCOVERABLE; 1437 p_inq->connectable_mode = BTM_NON_CONNECTABLE; 1438 p_inq->page_scan_type = BTM_SCAN_TYPE_STANDARD; 1439 p_inq->inq_scan_type = BTM_SCAN_TYPE_STANDARD; 1440 1441 #if BLE_INCLUDED == TRUE 1442 p_inq->discoverable_mode |= BTM_BLE_NON_DISCOVERABLE; 1443 p_inq->connectable_mode |= BTM_BLE_NON_CONNECTABLE; 1444 #endif 1445 return; 1446 } 1447 1448 1449 /********************************************************************************* 1450 ** 1451 ** Function btm_inq_db_init 1452 ** 1453 ** Description This function is called at startup to initialize the inquiry 1454 ** database. 1455 ** 1456 ** Returns void 1457 ** 1458 *******************************************************************************/ 1459 void btm_inq_db_init (void) 1460 { 1461 #if 0 /* cleared in btm_init; put back in if called from anywhere else! */ 1462 memset (&btm_cb.btm_inq_vars, 0, sizeof (tBTM_INQUIRY_VAR_ST)); 1463 #endif 1464 btm_cb.btm_inq_vars.no_inc_ssp = BTM_NO_SSP_ON_INQUIRY; 1465 } 1466 1467 /********************************************************************************* 1468 ** 1469 ** Function btm_inq_stop_on_ssp 1470 ** 1471 ** Description This function is called on incoming SSP 1472 ** 1473 ** Returns void 1474 ** 1475 *******************************************************************************/ 1476 void btm_inq_stop_on_ssp(void) 1477 { 1478 UINT8 normal_active = (BTM_GENERAL_INQUIRY_ACTIVE|BTM_LIMITED_INQUIRY_ACTIVE); 1479 1480 #if (BTM_INQ_DEBUG == TRUE) 1481 BTM_TRACE_DEBUG4 ("btm_inq_stop_on_ssp: no_inc_ssp=%d inq_active:0x%x state:%d inqfilt_active:%d", 1482 btm_cb.btm_inq_vars.no_inc_ssp, btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active); 1483 #endif 1484 if (btm_cb.btm_inq_vars.no_inc_ssp) 1485 { 1486 if (btm_cb.btm_inq_vars.state == BTM_INQ_ACTIVE_STATE) 1487 { 1488 if (btm_cb.btm_inq_vars.inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) 1489 { 1490 BTM_CancelPeriodicInquiry(); 1491 } 1492 else if (btm_cb.btm_inq_vars.inq_active & normal_active) 1493 { 1494 /* can not call BTM_CancelInquiry() here. We need to report inquiry complete evt */ 1495 btsnd_hcic_inq_cancel(); 1496 } 1497 } 1498 /* do not allow inquiry to start */ 1499 btm_cb.btm_inq_vars.inq_active |= BTM_SSP_INQUIRY_ACTIVE; 1500 } 1501 } 1502 1503 /********************************************************************************* 1504 ** 1505 ** Function btm_inq_clear_ssp 1506 ** 1507 ** Description This function is called when pairing_state becomes idle 1508 ** 1509 ** Returns void 1510 ** 1511 *******************************************************************************/ 1512 void btm_inq_clear_ssp(void) 1513 { 1514 btm_cb.btm_inq_vars.inq_active &= ~BTM_SSP_INQUIRY_ACTIVE; 1515 } 1516 1517 /********************************************************************************* 1518 ** 1519 ** Function btm_clr_inq_db 1520 ** 1521 ** Description This function is called to clear out a device or all devices 1522 ** from the inquiry database. 1523 ** 1524 ** Parameter p_bda - (input) BD_ADDR -> Address of device to clear 1525 ** (NULL clears all entries) 1526 ** 1527 ** Returns void 1528 ** 1529 *******************************************************************************/ 1530 void btm_clr_inq_db (BD_ADDR p_bda) 1531 { 1532 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1533 tINQ_DB_ENT *p_ent = p_inq->inq_db; 1534 UINT16 xx; 1535 1536 #if (BTM_INQ_DEBUG == TRUE) 1537 BTM_TRACE_DEBUG2 ("btm_clr_inq_db: inq_active:0x%x state:%d", 1538 btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state); 1539 #endif 1540 for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) 1541 { 1542 if (p_ent->in_use) 1543 { 1544 /* If this is the specified BD_ADDR or clearing all devices */ 1545 if (p_bda == NULL || 1546 (!memcmp (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN))) 1547 { 1548 p_ent->in_use = FALSE; 1549 #if (BTM_INQ_GET_REMOTE_NAME == TRUE) 1550 p_ent->inq_info.remote_name_state = BTM_INQ_RMT_NAME_EMPTY; 1551 #endif 1552 1553 if (btm_cb.btm_inq_vars.p_inq_change_cb) 1554 (*btm_cb.btm_inq_vars.p_inq_change_cb) (&p_ent->inq_info, FALSE); 1555 } 1556 } 1557 } 1558 #if (BTM_INQ_DEBUG == TRUE) 1559 BTM_TRACE_DEBUG2 ("inq_active:0x%x state:%d", 1560 btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state); 1561 #endif 1562 } 1563 1564 1565 /******************************************************************************* 1566 ** 1567 ** Function btm_clr_inq_result_flt 1568 ** 1569 ** Description This function looks through the bdaddr database for a match 1570 ** based on Bluetooth Device Address 1571 ** 1572 ** Returns TRUE if found, else FALSE (new entry) 1573 ** 1574 *******************************************************************************/ 1575 static void btm_clr_inq_result_flt (void) 1576 { 1577 #if BTM_USE_INQ_RESULTS_FILTER == TRUE 1578 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1579 1580 if (p_inq->p_bd_db) 1581 { 1582 GKI_freebuf(p_inq->p_bd_db); 1583 p_inq->p_bd_db = NULL; 1584 } 1585 p_inq->num_bd_entries = 0; 1586 p_inq->max_bd_entries = 0; 1587 #endif 1588 } 1589 1590 /******************************************************************************* 1591 ** 1592 ** Function btm_inq_find_bdaddr 1593 ** 1594 ** Description This function looks through the bdaddr database for a match 1595 ** based on Bluetooth Device Address 1596 ** 1597 ** Returns TRUE if found, else FALSE (new entry) 1598 ** 1599 *******************************************************************************/ 1600 BOOLEAN btm_inq_find_bdaddr (BD_ADDR p_bda) 1601 { 1602 #if BTM_USE_INQ_RESULTS_FILTER == TRUE 1603 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1604 tINQ_BDADDR *p_db = &p_inq->p_bd_db[0]; 1605 UINT16 xx; 1606 1607 /* Don't bother searching, database doesn't exist or periodic mode */ 1608 if ((p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) || !p_db) 1609 return (FALSE); 1610 1611 for (xx = 0; xx < p_inq->num_bd_entries; xx++, p_db++) 1612 { 1613 if (!memcmp(p_db->bd_addr, p_bda, BD_ADDR_LEN) 1614 && p_db->inq_count == p_inq->inq_counter) 1615 return (TRUE); 1616 } 1617 1618 if (xx < p_inq->max_bd_entries) 1619 { 1620 p_db->inq_count = p_inq->inq_counter; 1621 memcpy(p_db->bd_addr, p_bda, BD_ADDR_LEN); 1622 p_inq->num_bd_entries++; 1623 } 1624 1625 #endif 1626 /* If here, New Entry */ 1627 return (FALSE); 1628 } 1629 1630 /******************************************************************************* 1631 ** 1632 ** Function btm_inq_db_find 1633 ** 1634 ** Description This function looks through the inquiry database for a match 1635 ** based on Bluetooth Device Address 1636 ** 1637 ** Returns pointer to entry, or NULL if not found 1638 ** 1639 *******************************************************************************/ 1640 tINQ_DB_ENT *btm_inq_db_find (BD_ADDR p_bda) 1641 { 1642 UINT16 xx; 1643 tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db; 1644 1645 for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) 1646 { 1647 if ((p_ent->in_use) && (!memcmp (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN))) 1648 return (p_ent); 1649 } 1650 1651 /* If here, not found */ 1652 return (NULL); 1653 } 1654 1655 1656 /******************************************************************************* 1657 ** 1658 ** Function btm_inq_db_new 1659 ** 1660 ** Description This function looks through the inquiry database for an unused 1661 ** entry. If no entry is free, it allocates the oldest entry. 1662 ** 1663 ** Returns pointer to entry 1664 ** 1665 *******************************************************************************/ 1666 tINQ_DB_ENT *btm_inq_db_new (BD_ADDR p_bda) 1667 { 1668 UINT16 xx; 1669 tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db; 1670 tINQ_DB_ENT *p_old = btm_cb.btm_inq_vars.inq_db; 1671 UINT32 ot = 0xFFFFFFFF; 1672 1673 for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) 1674 { 1675 if (!p_ent->in_use) 1676 { 1677 memset (p_ent, 0, sizeof (tINQ_DB_ENT)); 1678 memcpy (p_ent->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN); 1679 p_ent->in_use = TRUE; 1680 1681 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 1682 p_ent->inq_info.remote_name_state = BTM_INQ_RMT_NAME_EMPTY; 1683 #endif 1684 1685 return (p_ent); 1686 } 1687 1688 if (p_ent->time_of_resp < ot) 1689 { 1690 p_old = p_ent; 1691 ot = p_ent->time_of_resp; 1692 } 1693 } 1694 1695 /* If here, no free entry found. Return the oldest. */ 1696 1697 /* Before deleting the oldest, if anyone is registered for change */ 1698 /* notifications, then tell him we are deleting an entry. */ 1699 if (btm_cb.btm_inq_vars.p_inq_change_cb) 1700 (*btm_cb.btm_inq_vars.p_inq_change_cb) (&p_old->inq_info, FALSE); 1701 1702 memset (p_old, 0, sizeof (tINQ_DB_ENT)); 1703 memcpy (p_old->inq_info.results.remote_bd_addr, p_bda, BD_ADDR_LEN); 1704 p_old->in_use = TRUE; 1705 1706 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 1707 p_old->inq_info.remote_name_state = BTM_INQ_RMT_NAME_EMPTY; 1708 #endif 1709 1710 return (p_old); 1711 } 1712 1713 1714 /******************************************************************************* 1715 ** 1716 ** Function btm_set_inq_event_filter 1717 ** 1718 ** Description This function is called to set the inquiry event filter. 1719 ** It is called by either internally, or by the external API function 1720 ** (BTM_SetInqEventFilter). It is used internally as part of the 1721 ** inquiry processing. 1722 ** 1723 ** Input Params: 1724 ** filter_cond_type - this is the type of inquiry filter to apply: 1725 ** BTM_FILTER_COND_DEVICE_CLASS, 1726 ** BTM_FILTER_COND_BD_ADDR, or 1727 ** BTM_CLR_INQUIRY_FILTER 1728 ** 1729 ** p_filt_cond - this is either a BD_ADDR or DEV_CLASS depending on the 1730 ** filter_cond_type (See section 4.7.3 of Core Spec 1.0b). 1731 ** 1732 ** Returns BTM_CMD_STARTED if successfully initiated 1733 ** BTM_NO_RESOURCES if couldn't get a memory pool buffer 1734 ** BTM_ILLEGAL_VALUE if a bad parameter was detected 1735 ** 1736 *******************************************************************************/ 1737 static tBTM_STATUS btm_set_inq_event_filter (UINT8 filter_cond_type, 1738 tBTM_INQ_FILT_COND *p_filt_cond) 1739 { 1740 UINT8 condition_length = DEV_CLASS_LEN * 2; 1741 UINT8 condition_buf[DEV_CLASS_LEN * 2]; 1742 UINT8 *p_cond = condition_buf; /* points to the condition to pass to HCI */ 1743 1744 #if (BTM_INQ_DEBUG == TRUE) 1745 BTM_TRACE_DEBUG1 ("btm_set_inq_event_filter: filter type %d [Clear-0, COD-1, BDADDR-2]", 1746 filter_cond_type); 1747 BTM_TRACE_DEBUG6 (" condition [%02x%02x%02x %02x%02x%02x]", 1748 p_filt_cond->bdaddr_cond[0], p_filt_cond->bdaddr_cond[1], p_filt_cond->bdaddr_cond[2], 1749 p_filt_cond->bdaddr_cond[3], p_filt_cond->bdaddr_cond[4], p_filt_cond->bdaddr_cond[5]); 1750 #endif 1751 1752 /* Load the correct filter condition to pass to the lower layer */ 1753 switch (filter_cond_type) 1754 { 1755 case BTM_FILTER_COND_DEVICE_CLASS: 1756 /* copy the device class and device class fields into contiguous memory to send to HCI */ 1757 memcpy (condition_buf, p_filt_cond->cod_cond.dev_class, DEV_CLASS_LEN); 1758 memcpy (&condition_buf[DEV_CLASS_LEN], 1759 p_filt_cond->cod_cond.dev_class_mask, DEV_CLASS_LEN); 1760 1761 /* condition length should already be set as the default */ 1762 break; 1763 1764 case BTM_FILTER_COND_BD_ADDR: 1765 p_cond = p_filt_cond->bdaddr_cond; 1766 1767 /* condition length should already be set as the default */ 1768 break; 1769 1770 case BTM_CLR_INQUIRY_FILTER: 1771 condition_length = 0; 1772 break; 1773 1774 default: 1775 return (BTM_ILLEGAL_VALUE); /* Bad parameter was passed in */ 1776 } 1777 1778 btm_cb.btm_inq_vars.inqfilt_active = TRUE; 1779 1780 /* Filter the inquiry results for the specified condition type and value */ 1781 if (btsnd_hcic_set_event_filter(HCI_FILTER_INQUIRY_RESULT, filter_cond_type, 1782 p_cond, condition_length)) 1783 1784 return (BTM_CMD_STARTED); 1785 else 1786 return (BTM_NO_RESOURCES); 1787 } 1788 1789 1790 /******************************************************************************* 1791 ** 1792 ** Function btm_event_filter_complete 1793 ** 1794 ** Description This function is called when a set event filter has completed. 1795 ** Note: This routine currently only handles inquiry filters. 1796 ** Connection filters are ignored for now. 1797 ** 1798 ** Returns void 1799 ** 1800 *******************************************************************************/ 1801 void btm_event_filter_complete (UINT8 *p) 1802 { 1803 UINT8 hci_status; 1804 tBTM_STATUS status; 1805 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1806 tBTM_CMPL_CB *p_cb = p_inq->p_inqfilter_cmpl_cb; 1807 1808 #if (BTM_INQ_DEBUG == TRUE) 1809 BTM_TRACE_DEBUG3 ("btm_event_filter_complete: inq_active:0x%x state:%d inqfilt_active:%d", 1810 btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active); 1811 #endif 1812 /* If the filter complete event is from an old or cancelled request, ignore it */ 1813 if(p_inq->pending_filt_complete_event) 1814 { 1815 p_inq->pending_filt_complete_event--; 1816 return; 1817 } 1818 1819 /* Only process the inquiry filter; Ignore the connection filter until it 1820 is used by the upper layers */ 1821 if (p_inq->inqfilt_active == TRUE ) 1822 { 1823 /* Extract the returned status from the buffer */ 1824 STREAM_TO_UINT8 (hci_status, p); 1825 if (hci_status != HCI_SUCCESS) 1826 { 1827 /* If standalone operation, return the error status; if embedded in the inquiry, continue the inquiry */ 1828 BTM_TRACE_WARNING1 ("BTM Warning: Set Event Filter Failed (HCI returned 0x%x)", hci_status); 1829 status = BTM_ERR_PROCESSING; 1830 } 1831 else 1832 status = BTM_SUCCESS; 1833 1834 /* If the set filter was initiated externally (via BTM_SetInqEventFilter), call the 1835 callback function to notify the initiator that it has completed */ 1836 if (p_inq->state == BTM_INQ_INACTIVE_STATE) 1837 { 1838 p_inq->inqfilt_active = FALSE; 1839 if (p_cb) 1840 (*p_cb) (&status); 1841 } 1842 else /* An inquiry is active (the set filter command was internally generated), 1843 process the next state of the process (Set a new filter or start the inquiry). */ 1844 { 1845 if(status != BTM_SUCCESS) 1846 { 1847 /* Process the inquiry complete (Error Status) */ 1848 btm_process_inq_complete (BTM_ERR_PROCESSING, (UINT8)(p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK)); 1849 1850 /* btm_process_inq_complete() does not restore the following settings on periodic inquiry */ 1851 p_inq->inqfilt_active = FALSE; 1852 p_inq->inq_active = BTM_INQUIRY_INACTIVE; 1853 p_inq->state = BTM_INQ_INACTIVE_STATE; 1854 1855 return; 1856 } 1857 1858 /* Check to see if a new filter needs to be set up */ 1859 if (p_inq->state == BTM_INQ_CLR_FILT_STATE) 1860 { 1861 if ((status = btm_set_inq_event_filter (p_inq->inqparms.filter_cond_type, &p_inq->inqparms.filter_cond)) == BTM_CMD_STARTED) 1862 { 1863 p_inq->state = BTM_INQ_SET_FILT_STATE; 1864 } 1865 else /* Error setting the filter: Call the initiator's callback function to indicate a failure */ 1866 { 1867 p_inq->inqfilt_active = FALSE; 1868 1869 /* Process the inquiry complete (Error Status) */ 1870 btm_process_inq_complete (BTM_ERR_PROCESSING, (UINT8)(p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK)); 1871 } 1872 } 1873 else /* Initiate the Inquiry or Periodic Inquiry */ 1874 { 1875 p_inq->state = BTM_INQ_ACTIVE_STATE; 1876 p_inq->inqfilt_active = FALSE; 1877 btm_initiate_inquiry (p_inq); 1878 } 1879 } 1880 } 1881 } 1882 1883 1884 /******************************************************************************* 1885 ** 1886 ** Function btm_initiate_inquiry 1887 ** 1888 ** Description This function is called to start an inquiry or periodic inquiry 1889 ** upon completion of the setting and/or clearing of the inquiry filter. 1890 ** 1891 ** Inputs: p_inq (btm_cb.btm_inq_vars) - pointer to saved inquiry information 1892 ** mode - GENERAL or LIMITED inquiry 1893 ** duration - length in 1.28 sec intervals (If '0', the inquiry is CANCELLED) 1894 ** max_resps - maximum amount of devices to search for before ending the inquiry 1895 ** filter_cond_type - BTM_CLR_INQUIRY_FILTER, BTM_FILTER_COND_DEVICE_CLASS, or 1896 ** BTM_FILTER_COND_BD_ADDR 1897 ** filter_cond - value for the filter (based on filter_cond_type) 1898 ** 1899 ** Returns If an error occurs the initiator's callback is called with the error status. 1900 ** 1901 *******************************************************************************/ 1902 static void btm_initiate_inquiry (tBTM_INQUIRY_VAR_ST *p_inq) 1903 { 1904 const LAP *lap; 1905 tBTM_INQ_PARMS *p_inqparms = &p_inq->inqparms; 1906 1907 #if (BTM_INQ_DEBUG == TRUE) 1908 BTM_TRACE_DEBUG3 ("btm_initiate_inquiry: inq_active:0x%x state:%d inqfilt_active:%d", 1909 btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active); 1910 #endif 1911 #if (defined(BTM_BUSY_LEVEL_CHANGE_INCLUDED) && BTM_BUSY_LEVEL_CHANGE_INCLUDED == TRUE) 1912 btm_acl_update_busy_level (BTM_BLI_INQ_EVT); 1913 #endif 1914 1915 if (p_inq->inq_active & BTM_SSP_INQUIRY_ACTIVE) 1916 { 1917 btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK)); 1918 return; 1919 } 1920 1921 /* Make sure the number of responses doesn't overflow the database configuration */ 1922 p_inqparms->max_resps = (UINT8)((p_inqparms->max_resps <= BTM_INQ_DB_SIZE) ? p_inqparms->max_resps : BTM_INQ_DB_SIZE); 1923 1924 lap = (p_inq->inq_active & BTM_LIMITED_INQUIRY_ACTIVE) ? &limited_inq_lap : &general_inq_lap; 1925 1926 if (p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) 1927 { 1928 if (!btsnd_hcic_per_inq_mode (p_inq->per_max_delay, 1929 p_inq->per_min_delay, 1930 *lap, p_inqparms->duration, 1931 p_inqparms->max_resps)) 1932 btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK)); 1933 } 1934 else 1935 { 1936 #if BTM_USE_INQ_RESULTS_FILTER == TRUE 1937 btm_clr_inq_result_flt(); 1938 1939 /* Allocate memory to hold bd_addrs responding */ 1940 if ((p_inq->p_bd_db = (tINQ_BDADDR *)GKI_getbuf(GKI_MAX_BUF_SIZE)) != NULL) 1941 { 1942 p_inq->max_bd_entries = (UINT16)(GKI_MAX_BUF_SIZE / sizeof(tINQ_BDADDR)); 1943 memset(p_inq->p_bd_db, 0, GKI_MAX_BUF_SIZE); 1944 /* BTM_TRACE_DEBUG1("btm_initiate_inquiry: memory allocated for %d bdaddrs", 1945 p_inq->max_bd_entries); */ 1946 } 1947 1948 if (!btsnd_hcic_inquiry(*lap, p_inqparms->duration, 0)) 1949 #else 1950 if (!btsnd_hcic_inquiry(*lap, p_inqparms->duration, p_inqparms->max_resps)) 1951 #endif /* BTM_USE_INQ_RESULTS_FILTER */ 1952 btm_process_inq_complete (BTM_NO_RESOURCES, (UINT8)(p_inqparms->mode & BTM_BR_INQUIRY_MASK)); 1953 } 1954 } 1955 1956 /******************************************************************************* 1957 ** 1958 ** Function btm_process_inq_results 1959 ** 1960 ** Description This function is called when inquiry results are received from 1961 ** the device. It updates the inquiry database. If the inquiry 1962 ** database is full, the oldest entry is discarded. 1963 ** 1964 ** Parameters inq_res_mode - BTM_INQ_RESULT_STANDARD 1965 ** BTM_INQ_RESULT_WITH_RSSI 1966 ** BTM_INQ_RESULT_EXTENDED 1967 ** 1968 ** Returns void 1969 ** 1970 *******************************************************************************/ 1971 void btm_process_inq_results (UINT8 *p, UINT8 inq_res_mode) 1972 { 1973 UINT8 num_resp, xx; 1974 BD_ADDR bda; 1975 tINQ_DB_ENT *p_i; 1976 tBTM_INQ_RESULTS *p_cur=NULL; 1977 BOOLEAN is_new = TRUE; 1978 BOOLEAN update = FALSE; 1979 INT8 i_rssi; 1980 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 1981 tBTM_INQ_RESULTS_CB *p_inq_results_cb = p_inq->p_inq_results_cb; 1982 UINT8 page_scan_rep_mode = 0; 1983 UINT8 page_scan_per_mode = 0; 1984 UINT8 page_scan_mode = 0; 1985 UINT8 rssi = 0; 1986 DEV_CLASS dc; 1987 UINT16 clock_offset; 1988 #if (BTM_EIR_CLIENT_INCLUDED == TRUE) 1989 UINT8 *p_eir_data = NULL; 1990 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 1991 UINT8 remote_name_len; 1992 #endif 1993 #endif 1994 1995 #if (BTM_INQ_DEBUG == TRUE) 1996 BTM_TRACE_DEBUG3 ("btm_process_inq_results inq_active:0x%x state:%d inqfilt_active:%d", 1997 btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active); 1998 #endif 1999 /* Only process the results if the BR inquiry is still active */ 2000 if (!(p_inq->inq_active & BTM_BR_INQ_ACTIVE_MASK)) 2001 return; 2002 2003 STREAM_TO_UINT8 (num_resp, p); 2004 2005 for (xx = 0; xx < num_resp; xx++) 2006 { 2007 update = FALSE; 2008 /* Extract inquiry results */ 2009 STREAM_TO_BDADDR (bda, p); 2010 STREAM_TO_UINT8 (page_scan_rep_mode, p); 2011 STREAM_TO_UINT8 (page_scan_per_mode, p); 2012 2013 if (inq_res_mode == BTM_INQ_RESULT_STANDARD) 2014 { 2015 STREAM_TO_UINT8(page_scan_mode, p); 2016 } 2017 2018 STREAM_TO_DEVCLASS (dc, p); 2019 STREAM_TO_UINT16 (clock_offset, p); 2020 if (inq_res_mode != BTM_INQ_RESULT_STANDARD) 2021 { 2022 STREAM_TO_UINT8(rssi, p); 2023 } 2024 2025 p_i = btm_inq_db_find (bda); 2026 2027 #if BTM_USE_INQ_RESULTS_FILTER == TRUE 2028 /* Only process the num_resp is smaller than max_resps. 2029 If results are queued to BTU task while canceling inquiry, 2030 or when more than one result is in this response, > max_resp 2031 responses could be processed which can confuse some apps 2032 */ 2033 if (p_inq->inqparms.max_resps && 2034 p_inq->inq_cmpl_info.num_resp >= p_inq->inqparms.max_resps 2035 #if BLE_INCLUDED == TRUE 2036 /* new device response */ 2037 && ( p_i == NULL || 2038 /* exisiting device with BR/EDR info */ 2039 (p_i && (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) != 0) 2040 ) 2041 #endif 2042 2043 ) 2044 { 2045 /* BTM_TRACE_WARNING0("INQ RES: Extra Response Received...ignoring"); */ 2046 return; 2047 } 2048 #endif 2049 2050 /* Check if this address has already been processed for this inquiry */ 2051 if (btm_inq_find_bdaddr(bda)) 2052 { 2053 /* BTM_TRACE_DEBUG6("BDA seen before [%02x%02x %02x%02x %02x%02x]", 2054 bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);*/ 2055 /* By default suppose no update needed */ 2056 i_rssi = (INT8)rssi; 2057 2058 /* If this new RSSI is higher than the last one */ 2059 if(p_inq->inqparms.report_dup && (rssi != 0) && 2060 p_i && (i_rssi > p_i->inq_info.results.rssi || p_i->inq_info.results.rssi == 0 2061 #if BLE_INCLUDED == TRUE 2062 /* BR/EDR inquiry information update */ 2063 || (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) != 0 2064 #endif 2065 )) 2066 { 2067 p_cur = &p_i->inq_info.results; 2068 BTM_TRACE_DEBUG2("update RSSI new:%d, old:%d", i_rssi, p_cur->rssi); 2069 p_cur->rssi = i_rssi; 2070 update = TRUE; 2071 } 2072 /* If we received a second Extended Inq Event for an already */ 2073 /* discovered device, this is because for the first one EIR was not received */ 2074 else if ((inq_res_mode == BTM_INQ_RESULT_EXTENDED) && (p_i)) 2075 { 2076 p_cur = &p_i->inq_info.results; 2077 update = TRUE; 2078 } 2079 /* If no update needed continue with next response (if any) */ 2080 else 2081 continue; 2082 } 2083 2084 /* Host can be registered to verify comming BDA or DC */ 2085 if (btm_cb.p_inq_filter_cb) 2086 { 2087 if (!(* btm_cb.p_inq_filter_cb) (bda, dc)) 2088 { 2089 continue; 2090 } 2091 } 2092 2093 /* If existing entry, use that, else get a new one (possibly reusing the oldest) */ 2094 if (p_i == NULL) 2095 { 2096 p_i = btm_inq_db_new (bda); 2097 is_new = TRUE; 2098 } 2099 2100 /* If an entry for the device already exists, overwrite it ONLY if it is from 2101 a previous inquiry. (Ignore it if it is a duplicate response from the same 2102 inquiry. 2103 */ 2104 else if (p_i->inq_count == p_inq->inq_counter 2105 #if (BLE_INCLUDED == TRUE ) 2106 && (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) 2107 #endif 2108 ) 2109 is_new = FALSE; 2110 2111 /* keep updating RSSI to have latest value */ 2112 if( inq_res_mode != BTM_INQ_RESULT_STANDARD ) 2113 p_i->inq_info.results.rssi = (INT8)rssi; 2114 else 2115 p_i->inq_info.results.rssi = BTM_INQ_RES_IGNORE_RSSI; 2116 2117 if (is_new == TRUE) 2118 { 2119 /* Save the info */ 2120 p_cur = &p_i->inq_info.results; 2121 p_cur->page_scan_rep_mode = page_scan_rep_mode; 2122 p_cur->page_scan_per_mode = page_scan_per_mode; 2123 p_cur->page_scan_mode = page_scan_mode; 2124 p_cur->dev_class[0] = dc[0]; 2125 p_cur->dev_class[1] = dc[1]; 2126 p_cur->dev_class[2] = dc[2]; 2127 p_cur->clock_offset = clock_offset | BTM_CLOCK_OFFSET_VALID; 2128 2129 p_i->time_of_resp = GKI_get_tick_count (); 2130 2131 if (p_i->inq_count != p_inq->inq_counter) 2132 p_inq->inq_cmpl_info.num_resp++; /* A new response was found */ 2133 2134 #if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE) 2135 p_cur->inq_result_type = BTM_INQ_RESULT_BR; 2136 if (p_i->inq_count != p_inq->inq_counter) 2137 { 2138 p_cur->device_type = BT_DEVICE_TYPE_BREDR; 2139 p_i->scan_rsp = FALSE; 2140 } 2141 else 2142 p_cur->device_type |= BT_DEVICE_TYPE_BREDR; 2143 #endif 2144 p_i->inq_count = p_inq->inq_counter; /* Mark entry for current inquiry */ 2145 2146 #if BTM_USE_INQ_RESULTS_FILTER == TRUE 2147 /* If the number of responses found and not unlimited, issue a cancel inquiry */ 2148 if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) && 2149 p_inq->inqparms.max_resps && 2150 p_inq->inq_cmpl_info.num_resp == p_inq->inqparms.max_resps 2151 #if BLE_INCLUDED == TRUE 2152 /* BLE scanning is active and received adv */ 2153 && ((((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) && 2154 p_cur->device_type == BT_DEVICE_TYPE_DUMO && p_i->scan_rsp) || 2155 (p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) == 0) 2156 #endif 2157 ) 2158 { 2159 /* BTM_TRACE_DEBUG0("BTMINQ: Found devices, cancelling inquiry..."); */ 2160 btsnd_hcic_inq_cancel(); 2161 2162 #if BLE_INCLUDED == TRUE 2163 if ((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) 2164 btm_ble_stop_scan(); 2165 #endif 2166 2167 2168 #if (defined(BTM_BUSY_LEVEL_CHANGE_INCLUDED) && BTM_BUSY_LEVEL_CHANGE_INCLUDED == TRUE) 2169 btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT); 2170 #endif 2171 } 2172 #endif 2173 /* Initialize flag to FALSE. This flag is set/used by application */ 2174 p_i->inq_info.appl_knows_rem_name = FALSE; 2175 } 2176 2177 if (is_new || update) 2178 { 2179 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 2180 #if (BTM_EIR_CLIENT_INCLUDED == TRUE) 2181 if( inq_res_mode == BTM_INQ_RESULT_EXTENDED ) 2182 { 2183 if((p_eir_data = BTM_CheckEirData( p, BTM_EIR_COMPLETE_LOCAL_NAME_TYPE, 2184 &remote_name_len )) == NULL) 2185 { 2186 p_eir_data = BTM_CheckEirData( p, BTM_EIR_SHORTENED_LOCAL_NAME_TYPE, 2187 &remote_name_len ); 2188 } 2189 2190 if( p_eir_data ) 2191 { 2192 if( remote_name_len > BTM_MAX_REM_BD_NAME_LEN ) 2193 remote_name_len = BTM_MAX_REM_BD_NAME_LEN; 2194 2195 p_i->inq_info.remote_name_len = remote_name_len; 2196 memcpy( p_i->inq_info.remote_name, p_eir_data, p_i->inq_info.remote_name_len ); 2197 p_i->inq_info.remote_name[p_i->inq_info.remote_name_len] = 0; 2198 p_i->inq_info.remote_name_state = BTM_INQ_RMT_NAME_DONE; 2199 } 2200 else 2201 p_i->inq_info.remote_name_state = BTM_INQ_RMT_NAME_EMPTY; 2202 } 2203 else 2204 #endif 2205 { 2206 /* Clear out the device name so that it can be re-read */ 2207 p_i->inq_info.remote_name_state = BTM_INQ_RMT_NAME_EMPTY; 2208 } 2209 #endif /*(BTM_INQ_GET_REMOTE_NAME==TRUE)*/ 2210 2211 #if (BTM_EIR_CLIENT_INCLUDED == TRUE) 2212 if( inq_res_mode == BTM_INQ_RESULT_EXTENDED ) 2213 { 2214 memset( p_cur->eir_uuid, 0, 2215 BTM_EIR_SERVICE_ARRAY_SIZE * (BTM_EIR_ARRAY_BITS/8)); 2216 /* set bit map of UUID list from received EIR */ 2217 btm_set_eir_uuid( p, p_cur ); 2218 p_eir_data = p; 2219 } 2220 else 2221 p_eir_data = NULL; 2222 #endif 2223 2224 /* If a callback is registered, call it with the results */ 2225 if (p_inq_results_cb) 2226 #if (BTM_EIR_CLIENT_INCLUDED == TRUE) 2227 (p_inq_results_cb)((tBTM_INQ_RESULTS *) p_cur, p_eir_data); 2228 #else 2229 (p_inq_results_cb)((tBTM_INQ_RESULTS *) p_cur, NULL); 2230 #endif 2231 2232 /* If anyone is registered for change notifications, then tell him we added an entry. */ 2233 if (p_inq->p_inq_change_cb) 2234 (*p_inq->p_inq_change_cb) (&p_i->inq_info, TRUE); 2235 } 2236 } 2237 } 2238 2239 /******************************************************************************* 2240 ** 2241 ** Function btm_sort_inq_result 2242 ** 2243 ** Description This function is called when inquiry complete is received 2244 ** from the device to sort inquiry results based on rssi. 2245 ** 2246 ** Returns void 2247 ** 2248 *******************************************************************************/ 2249 void btm_sort_inq_result(void) 2250 { 2251 UINT8 xx, yy, num_resp; 2252 tINQ_DB_ENT *p_tmp = NULL; 2253 tINQ_DB_ENT *p_ent = btm_cb.btm_inq_vars.inq_db; 2254 tINQ_DB_ENT *p_next = btm_cb.btm_inq_vars.inq_db+1; 2255 int size; 2256 2257 num_resp = (btm_cb.btm_inq_vars.inq_cmpl_info.num_resp<BTM_INQ_DB_SIZE)? 2258 btm_cb.btm_inq_vars.inq_cmpl_info.num_resp: BTM_INQ_DB_SIZE; 2259 2260 if((p_tmp = (tINQ_DB_ENT *)GKI_getbuf(sizeof(tINQ_DB_ENT))) != NULL) 2261 { 2262 size = sizeof(tINQ_DB_ENT); 2263 for(xx = 0; xx < num_resp-1; xx++, p_ent++) 2264 { 2265 for(yy = xx+1, p_next = p_ent+1; yy < num_resp; yy++, p_next++) 2266 { 2267 if(p_ent->inq_info.results.rssi < p_next->inq_info.results.rssi) 2268 { 2269 memcpy (p_tmp, p_next, size); 2270 memcpy (p_next, p_ent, size); 2271 memcpy (p_ent, p_tmp, size); 2272 } 2273 } 2274 } 2275 2276 GKI_freebuf(p_tmp); 2277 } 2278 } 2279 2280 /******************************************************************************* 2281 ** 2282 ** Function btm_process_inq_complete 2283 ** 2284 ** Description This function is called when inquiry complete is received 2285 ** from the device. Call the callback if not in periodic inquiry 2286 ** mode AND it is not NULL (The caller wants the event). 2287 ** 2288 ** The callback pass back the status and the number of responses 2289 ** 2290 ** Returns void 2291 ** 2292 *******************************************************************************/ 2293 void btm_process_inq_complete (UINT8 status, UINT8 mode) 2294 { 2295 tBTM_CMPL_CB *p_inq_cb = btm_cb.btm_inq_vars.p_inq_cmpl_cb; 2296 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 2297 2298 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 2299 tBTM_INQ_INFO *p_cur; 2300 UINT8 tempstate; 2301 #endif 2302 2303 p_inq->inqparms.mode &= ~(mode); 2304 2305 #if (BTM_INQ_DEBUG == TRUE) 2306 BTM_TRACE_DEBUG3 ("btm_process_inq_complete inq_active:0x%x state:%d inqfilt_active:%d", 2307 btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active); 2308 #endif 2309 #if (defined(BTM_BUSY_LEVEL_CHANGE_INCLUDED) && BTM_BUSY_LEVEL_CHANGE_INCLUDED == TRUE) 2310 btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT); 2311 #endif 2312 /* Ignore any stray or late complete messages if the inquiry is not active */ 2313 if (p_inq->inq_active) 2314 { 2315 p_inq->inq_cmpl_info.status = (tBTM_STATUS)((status == HCI_SUCCESS) ? BTM_SUCCESS : BTM_ERR_PROCESSING); 2316 2317 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 2318 if (p_inq->inq_cmpl_info.status == BTM_SUCCESS) 2319 { 2320 for (p_cur = BTM_InqDbFirst(); p_cur; p_cur = BTM_InqDbNext (p_cur)) 2321 { 2322 if (p_cur->remote_name_state == BTM_INQ_RMT_NAME_EMPTY) 2323 { 2324 tempstate = p_cur->remote_name_state; 2325 p_cur->remote_name_state = BTM_INQ_RMT_NAME_PENDING; 2326 2327 if (btm_initiate_rem_name (p_cur->results.remote_bd_addr, 2328 p_cur, BTM_RMT_NAME_INQ, 2329 BTM_INQ_RMT_NAME_TIMEOUT, NULL) != BTM_CMD_STARTED) 2330 p_cur->remote_name_state = tempstate; 2331 else 2332 return; 2333 } 2334 } 2335 } 2336 #endif 2337 2338 /* Notify caller that the inquiry has completed; (periodic inquiries do not send completion events */ 2339 if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) && p_inq->inqparms.mode == 0) 2340 { 2341 p_inq->state = BTM_INQ_INACTIVE_STATE; 2342 2343 /* Increment so the start of a next inquiry has a new count */ 2344 p_inq->inq_counter++; 2345 2346 btm_clr_inq_result_flt(); 2347 2348 if((p_inq->inq_cmpl_info.status == BTM_SUCCESS) && 2349 HCI_LMP_INQ_RSSI_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_0])) 2350 { 2351 btm_sort_inq_result(); 2352 } 2353 2354 /* Clear the results callback if set */ 2355 p_inq->p_inq_results_cb = (tBTM_INQ_RESULTS_CB *) NULL; 2356 p_inq->inq_active = BTM_INQUIRY_INACTIVE; 2357 p_inq->p_inq_cmpl_cb = (tBTM_CMPL_CB *) NULL; 2358 2359 /* If we have a callback registered for inquiry complete, call it */ 2360 BTM_TRACE_DEBUG2 ("BTM Inq Compl Callback: status 0x%02x, num results %d", 2361 p_inq->inq_cmpl_info.status, p_inq->inq_cmpl_info.num_resp); 2362 2363 if (p_inq_cb) 2364 (p_inq_cb)((tBTM_INQUIRY_CMPL *) &p_inq->inq_cmpl_info); 2365 } 2366 2367 } 2368 #if (BTM_INQ_DEBUG == TRUE) 2369 BTM_TRACE_DEBUG3 ("inq_active:0x%x state:%d inqfilt_active:%d", 2370 btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, btm_cb.btm_inq_vars.inqfilt_active); 2371 #endif 2372 } 2373 2374 /******************************************************************************* 2375 ** 2376 ** Function btm_process_cancel_complete 2377 ** 2378 ** Description This function is called when inquiry cancel complete is received 2379 ** from the device.This function will also call the btm_process_inq_complete 2380 ** This function is needed to differentiate a cancel_cmpl_evt from the 2381 ** inq_cmpl_evt 2382 ** 2383 ** Returns void 2384 ** 2385 *******************************************************************************/ 2386 void btm_process_cancel_complete(UINT8 status, UINT8 mode) 2387 { 2388 #if (defined(BTM_BUSY_LEVEL_CHANGE_INCLUDED) && BTM_BUSY_LEVEL_CHANGE_INCLUDED == TRUE) 2389 btm_acl_update_busy_level (BTM_BLI_INQ_CANCEL_EVT); 2390 #endif 2391 btm_process_inq_complete(status, mode); 2392 } 2393 /******************************************************************************* 2394 ** 2395 ** Function btm_initiate_rem_name 2396 ** 2397 ** Description This function looks initiates a remote name request. It is called 2398 ** either by GAP or by the API call BTM_ReadRemoteDeviceName. 2399 ** 2400 ** Input Params: p_cur - pointer to an inquiry result structure (NULL if nonexistent) 2401 ** p_cb - callback function called when BTM_CMD_STARTED 2402 ** is returned. 2403 ** A pointer to tBTM_REMOTE_DEV_NAME is passed to the 2404 ** callback. 2405 ** 2406 ** Returns 2407 ** BTM_CMD_STARTED is returned if the request was sent to HCI. 2408 ** BTM_BUSY if already in progress 2409 ** BTM_NO_RESOURCES if could not allocate resources to start the command 2410 ** BTM_WRONG_MODE if the device is not up. 2411 ** 2412 *******************************************************************************/ 2413 tBTM_STATUS btm_initiate_rem_name (BD_ADDR remote_bda, tBTM_INQ_INFO *p_cur, 2414 UINT8 origin, UINT32 timeout, tBTM_CMPL_CB *p_cb) 2415 { 2416 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 2417 BOOLEAN cmd_ok; 2418 2419 2420 /*** Make sure the device is ready ***/ 2421 if (!BTM_IsDeviceUp()) 2422 return (BTM_WRONG_MODE); 2423 2424 2425 if (origin == BTM_RMT_NAME_SEC) 2426 { 2427 cmd_ok = btsnd_hcic_rmt_name_req (remote_bda, HCI_PAGE_SCAN_REP_MODE_R1, 2428 HCI_MANDATARY_PAGE_SCAN_MODE, 0); 2429 if (cmd_ok) 2430 return BTM_CMD_STARTED; 2431 else 2432 return BTM_NO_RESOURCES; 2433 } 2434 /* Make sure there are no two remote name requests from external API in progress */ 2435 else if (origin == BTM_RMT_NAME_EXT) 2436 { 2437 if (p_inq->remname_active) 2438 { 2439 return (BTM_BUSY); 2440 } 2441 else 2442 { 2443 /* If there is no remote name request running,call the callback function and start timer */ 2444 p_inq->p_remname_cmpl_cb = p_cb; 2445 memcpy(p_inq->remname_bda, remote_bda, BD_ADDR_LEN); 2446 btu_start_timer (&p_inq->rmt_name_timer_ent, 2447 BTU_TTYPE_BTM_RMT_NAME, 2448 timeout); 2449 2450 /* If the database entry exists for the device, use its clock offset */ 2451 if (p_cur) 2452 { 2453 cmd_ok = btsnd_hcic_rmt_name_req (remote_bda, 2454 p_cur->results.page_scan_rep_mode, 2455 p_cur->results.page_scan_mode, 2456 (UINT16)(p_cur->results.clock_offset | 2457 BTM_CLOCK_OFFSET_VALID)); 2458 } 2459 else /* Otherwise use defaults and mark the clock offset as invalid */ 2460 { 2461 cmd_ok = btsnd_hcic_rmt_name_req (remote_bda, HCI_PAGE_SCAN_REP_MODE_R1, 2462 HCI_MANDATARY_PAGE_SCAN_MODE, 0); 2463 } 2464 if (cmd_ok) 2465 { 2466 p_inq->remname_active = TRUE; 2467 return BTM_CMD_STARTED; 2468 } 2469 else 2470 return BTM_NO_RESOURCES; 2471 } 2472 } 2473 /* If the inquire feature is on */ 2474 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 2475 2476 else if (origin == BTM_RMT_NAME_INQ) 2477 { 2478 /* If the database entry exists for the device, use its clock offset */ 2479 if (p_cur) 2480 { 2481 cmd_ok = btsnd_hcic_rmt_name_req (remote_bda, 2482 p_cur->results.page_scan_rep_mode, 2483 p_cur->results.page_scan_mode, 2484 (UINT16)(p_cur->results.clock_offset | 2485 BTM_CLOCK_OFFSET_VALID)); 2486 } 2487 else 2488 { 2489 cmd_ok = FALSE 2490 } 2491 2492 if (cmd_ok) 2493 return BTM_CMD_STARTED; 2494 else 2495 return BTM_NO_RESOURCES; 2496 } 2497 #endif 2498 else 2499 { 2500 2501 return BTM_ILLEGAL_VALUE; 2502 2503 2504 } 2505 2506 2507 } 2508 2509 /******************************************************************************* 2510 ** 2511 ** Function btm_process_remote_name 2512 ** 2513 ** Description This function is called when a remote name is received from 2514 ** the device. If remote names are cached, it updates the inquiry 2515 ** database. 2516 ** 2517 ** Returns void 2518 ** 2519 *******************************************************************************/ 2520 void btm_process_remote_name (BD_ADDR bda, BD_NAME bdn, UINT16 evt_len, UINT8 hci_status) 2521 { 2522 tBTM_REMOTE_DEV_NAME rem_name; 2523 tBTM_INQUIRY_VAR_ST *p_inq = &btm_cb.btm_inq_vars; 2524 tBTM_CMPL_CB *p_cb = p_inq->p_remname_cmpl_cb; 2525 UINT8 *p_n1; 2526 2527 UINT16 temp_evt_len; 2528 2529 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 2530 /*** These are only used if part of the Inquiry Process ***/ 2531 tBTM_CMPL_CB *p_inq_cb; 2532 tINQ_DB_ENT *p_i = NULL; 2533 UINT8 *p_n; 2534 tBTM_INQ_INFO *p_cur; 2535 #endif 2536 #if BLE_INCLUDED == TRUE 2537 tBT_DEVICE_TYPE dev_type; 2538 tBLE_ADDR_TYPE addr_type; 2539 #endif 2540 2541 2542 if (bda != NULL) 2543 { 2544 BTM_TRACE_EVENT6("BDA %02x:%02x:%02x:%02x:%02x:%02x",bda[0], bda[1], 2545 bda[2], bda[3], 2546 bda[4], bda[5]); 2547 } 2548 2549 BTM_TRACE_EVENT6("Inquire BDA %02x:%02x:%02x:%02x:%02x:%02x",p_inq->remname_bda[0], p_inq->remname_bda[1], 2550 p_inq->remname_bda[2], p_inq->remname_bda[3], 2551 p_inq->remname_bda[4], p_inq->remname_bda[5]); 2552 2553 2554 2555 /* If the inquire BDA and remote DBA are the same, then stop the timer and set the active to false */ 2556 if ((p_inq->remname_active ==TRUE)&& 2557 (((bda != NULL) && 2558 (memcmp(bda, p_inq->remname_bda,BD_ADDR_LEN)==0)) || bda == NULL)) 2559 2560 { 2561 #if BLE_INCLUDED == TRUE 2562 BTM_ReadDevInfo(p_inq->remname_bda, &dev_type, &addr_type); 2563 if (dev_type == BT_DEVICE_TYPE_BLE) 2564 { 2565 if (hci_status == HCI_ERR_UNSPECIFIED) 2566 btm_ble_cancel_remote_name(p_inq->remname_bda); 2567 } 2568 #endif 2569 btu_stop_timer (&p_inq->rmt_name_timer_ent); 2570 p_inq->remname_active = FALSE; 2571 /* Clean up and return the status if the command was not successful */ 2572 /* Note: If part of the inquiry, the name is not stored, and the */ 2573 /* inquiry complete callback is called. */ 2574 2575 if ((hci_status == HCI_SUCCESS)) 2576 { 2577 /* Copy the name from the data stream into the return structure */ 2578 /* Note that even if it is not being returned, it is used as a */ 2579 /* temporary buffer. */ 2580 p_n1 = (UINT8 *)rem_name.remote_bd_name; 2581 rem_name.length = (evt_len < BD_NAME_LEN) ? evt_len : BD_NAME_LEN; 2582 rem_name.remote_bd_name[rem_name.length] = 0; 2583 rem_name.status = BTM_SUCCESS; 2584 temp_evt_len = rem_name.length; 2585 2586 while (temp_evt_len > 0) 2587 { 2588 *p_n1++ = *bdn++; 2589 temp_evt_len--; 2590 } 2591 rem_name.remote_bd_name[rem_name.length] = 0; 2592 } 2593 2594 2595 /* If processing a stand alone remote name then report the error in the callback */ 2596 else 2597 { 2598 rem_name.status = BTM_BAD_VALUE_RET; 2599 rem_name.length = 0; 2600 rem_name.remote_bd_name[0] = 0; 2601 } 2602 /* Reset the remote BAD to zero and call callback if possible */ 2603 memset(p_inq->remname_bda, 0, BD_ADDR_LEN); 2604 2605 p_inq->p_remname_cmpl_cb = NULL; 2606 if (p_cb) 2607 (p_cb)((tBTM_REMOTE_DEV_NAME *)&rem_name); 2608 } 2609 2610 2611 #if (BTM_INQ_GET_REMOTE_NAME==TRUE) 2612 /* If existing entry, update the name */ 2613 if ((bda != NULL) && ((p_i = btm_inq_db_find (bda)) != NULL) 2614 && (hci_status == HCI_SUCCESS)) 2615 { 2616 p_i->inq_info.remote_name_state = BTM_INQ_RMT_NAME_DONE; 2617 p_n = p_i->inq_info.remote_name; 2618 memset(p_n, 0, BTM_MAX_REM_BD_NAME_LEN + 1); 2619 p_i->inq_info.remote_name_len = (rem_name.length < BTM_MAX_REM_BD_NAME_LEN) ? 2620 rem_name.length : BTM_MAX_REM_BD_NAME_LEN; 2621 evt_len = p_i->inq_info.remote_name_len; 2622 p_n1 = (UINT8 *)rem_name.remote_bd_name; 2623 while (evt_len > 0) 2624 { 2625 *p_n++ = *p_n1++; 2626 evt_len--; 2627 } 2628 2629 if (btm_cb.btm_inq_vars.p_inq_change_cb) 2630 (*btm_cb.btm_inq_vars.p_inq_change_cb) (&p_i->inq_info, TRUE); 2631 } 2632 else 2633 { 2634 if (p_i) 2635 p_i->inq_info.remote_name_state = BTM_INQ_RMT_NAME_FAILED; 2636 else 2637 { 2638 /* Find the entry which is currently doing name request */ 2639 for (p_cur = BTM_InqDbFirst(); p_cur; p_cur = BTM_InqDbNext (p_cur)) 2640 { 2641 if (p_cur->remote_name_state == BTM_INQ_RMT_NAME_PENDING) 2642 { 2643 /* Should be only one */ 2644 p_cur->remote_name_state = BTM_INQ_RMT_NAME_FAILED; 2645 break; 2646 } 2647 } 2648 } 2649 } 2650 2651 /* If an inquiry is in progress then update other entries */ 2652 if (p_inq->inq_active) 2653 { 2654 /* Check if there are any more entries inquired but not named */ 2655 for (p_cur = BTM_InqDbFirst(); p_cur; p_cur = BTM_InqDbNext (p_cur)) 2656 { 2657 if (p_cur->remote_name_state == BTM_INQ_RMT_NAME_EMPTY) 2658 { 2659 p_cur->remote_name_state = BTM_INQ_RMT_NAME_PENDING; 2660 #if (BLE_INCLUDED == TRUE) 2661 BTM_ReadDevInfo(remote_bda, &dev_type, &addr_type); 2662 if (dev_type == BT_DEVICE_TYPE_BLE) 2663 { 2664 if (btm_ble_read_remote_name(remote_bda, p_cur, p_cb) != BTM_CMD_STARTED) 2665 p_cur->remote_name_state = BTM_INQ_RMT_NAME_FAILED; 2666 else 2667 return; 2668 } 2669 else 2670 #endif 2671 { 2672 if (btm_initiate_rem_name (p_cur->results.remote_bd_addr, 2673 p_cur, BTM_RMT_NAME_INQ, 2674 BTM_INQ_RMT_NAME_TIMEOUT, NULL) != BTM_CMD_STARTED) 2675 p_cur->remote_name_state = BTM_INQ_RMT_NAME_FAILED; 2676 else 2677 return; 2678 } 2679 } 2680 } 2681 2682 /* The inquiry has finished so call the callback for the inquiry */ 2683 p_inq_cb = p_inq->p_inq_cmpl_cb; 2684 p_inq->state = BTM_INQ_INACTIVE_STATE; 2685 p_inq->inq_active = BTM_INQUIRY_INACTIVE; 2686 p_inq->p_inq_cmpl_cb = NULL; 2687 2688 /* If we have a callback registered for inquiry complete, call it */ 2689 if (p_inq_cb) 2690 (p_inq_cb)((tBTM_INQUIRY_CMPL *) &p_inq->inq_cmpl_info); 2691 2692 /* In some cases we can not get name of the device once but will be */ 2693 /* able to do it next time. Until we have better solution we will */ 2694 /* try to get name every time */ 2695 for (p_cur = BTM_InqDbFirst(); p_cur; p_cur = BTM_InqDbNext (p_cur)) 2696 { 2697 if (p_cur->remote_name_state == BTM_INQ_RMT_NAME_FAILED) 2698 p_cur->remote_name_state = BTM_INQ_RMT_NAME_EMPTY; 2699 } 2700 } 2701 #endif /* BTM_INQ_GET_REMOTE_NAME == TRUE */ 2702 } 2703 2704 /******************************************************************************* 2705 ** 2706 ** Function btm_inq_rmt_name_failed 2707 ** 2708 ** Description This function is if timeout expires while getting remote 2709 ** name. This is done for devices that incorrectly do not 2710 ** report operation failure 2711 ** 2712 ** Returns void 2713 ** 2714 *******************************************************************************/ 2715 void btm_inq_rmt_name_failed (void) 2716 { 2717 BTM_TRACE_ERROR1 ("btm_inq_rmt_name_failed() remname_active=%d", btm_cb.btm_inq_vars.remname_active); 2718 2719 if (btm_cb.btm_inq_vars.remname_active) 2720 btm_process_remote_name (btm_cb.btm_inq_vars.remname_bda, NULL, 0, HCI_ERR_UNSPECIFIED); 2721 else 2722 btm_process_remote_name (NULL, NULL, 0, HCI_ERR_UNSPECIFIED); 2723 2724 btm_sec_rmt_name_request_complete (NULL, NULL, HCI_ERR_UNSPECIFIED); 2725 } 2726 /******************************************************************************* 2727 ** 2728 ** Function btm_read_linq_tx_power_complete 2729 ** 2730 ** Description read inquiry tx power level complete callback function. 2731 ** 2732 ** Returns void 2733 ** 2734 *******************************************************************************/ 2735 void btm_read_linq_tx_power_complete(UINT8 *p) 2736 { 2737 tBTM_CMPL_CB *p_cb = btm_cb.devcb.p_txpwer_cmpl_cb; 2738 tBTM_INQ_TXPWR_RESULTS results; 2739 2740 btu_stop_timer (&btm_cb.devcb.txpwer_timer); 2741 /* If there was a callback registered for read inq tx power, call it */ 2742 btm_cb.devcb.p_txpwer_cmpl_cb = NULL; 2743 2744 if (p_cb) 2745 { 2746 STREAM_TO_UINT8 (results.hci_status, p); 2747 2748 if (results.hci_status == HCI_SUCCESS) 2749 { 2750 results.status = BTM_SUCCESS; 2751 2752 STREAM_TO_UINT8 (results.tx_power, p); 2753 BTM_TRACE_EVENT2 ("BTM INQ TX POWER Complete: tx_power %d, hci status 0x%02x", 2754 results.tx_power, results.hci_status); 2755 } 2756 else 2757 results.status = BTM_ERR_PROCESSING; 2758 2759 (*p_cb)(&results); 2760 } 2761 2762 } 2763 /******************************************************************************* 2764 ** 2765 ** Function BTM_WriteEIR 2766 ** 2767 ** Description This function is called to write EIR data to controller. 2768 ** 2769 ** Parameters p_buff - allocated HCI command buffer including extended 2770 ** inquriry response 2771 ** 2772 ** Returns BTM_SUCCESS - if successful 2773 ** BTM_MODE_UNSUPPORTED - if local device cannot support it 2774 ** 2775 *******************************************************************************/ 2776 tBTM_STATUS BTM_WriteEIR( BT_HDR *p_buff ) 2777 { 2778 #if (BTM_EIR_SERVER_INCLUDED == TRUE) 2779 if (HCI_EXT_INQ_RSP_SUPPORTED(btm_cb.devcb.local_lmp_features[HCI_EXT_FEATURES_PAGE_0])) 2780 { 2781 BTM_TRACE_API0("Write Extended Inquiry Response to controller"); 2782 btsnd_hcic_write_ext_inquiry_response (p_buff, BTM_EIR_DEFAULT_FEC_REQUIRED); 2783 return BTM_SUCCESS; 2784 } 2785 else 2786 { 2787 GKI_freebuf(p_buff); 2788 return BTM_MODE_UNSUPPORTED; 2789 } 2790 #else 2791 GKI_freebuf(p_buff); 2792 return BTM_SUCCESS; 2793 #endif 2794 } 2795 2796 /******************************************************************************* 2797 ** 2798 ** Function BTM_CheckEirData 2799 ** 2800 ** Description This function is called to get EIR data from significant part. 2801 ** 2802 ** Parameters p_eir - pointer of EIR significant part 2803 ** type - finding EIR data type 2804 ** p_length - return the length of EIR data not including type 2805 ** 2806 ** Returns pointer of EIR data 2807 ** 2808 *******************************************************************************/ 2809 UINT8 *BTM_CheckEirData( UINT8 *p_eir, UINT8 type, UINT8 *p_length ) 2810 { 2811 #if (BTM_EIR_CLIENT_INCLUDED == TRUE) 2812 UINT8 *p = p_eir; 2813 UINT8 length; 2814 UINT8 eir_type; 2815 BTM_TRACE_API1("BTM_CheckEirData type=0x%02X", type); 2816 2817 STREAM_TO_UINT8(length, p); 2818 while( length && (p - p_eir <= HCI_EXT_INQ_RESPONSE_LEN)) 2819 { 2820 STREAM_TO_UINT8(eir_type, p); 2821 if( eir_type == type ) 2822 { 2823 /* length doesn't include itself */ 2824 *p_length = length - 1; /* minus the length of type */ 2825 return p; 2826 } 2827 p += length - 1; /* skip the length of data */ 2828 STREAM_TO_UINT8(length, p); 2829 } 2830 2831 *p_length = 0; 2832 return NULL; 2833 #else 2834 return NULL; 2835 #endif 2836 } 2837 2838 /******************************************************************************* 2839 ** 2840 ** Function btm_convert_uuid_to_eir_service 2841 ** 2842 ** Description This function is called to get the bit position of UUID. 2843 ** 2844 ** Parameters uuid16 - UUID 16-bit 2845 ** 2846 ** Returns BTM EIR service ID if found 2847 ** BTM_EIR_MAX_SERVICES - if not found 2848 ** 2849 *******************************************************************************/ 2850 #if (( BTM_EIR_CLIENT_INCLUDED == TRUE )||( BTM_EIR_SERVER_INCLUDED == TRUE )) 2851 static UINT8 btm_convert_uuid_to_eir_service( UINT16 uuid16 ) 2852 { 2853 UINT8 xx; 2854 2855 for( xx = 0; xx < BTM_EIR_MAX_SERVICES; xx++ ) 2856 { 2857 if( uuid16 == BTM_EIR_UUID_LKUP_TBL[xx]) 2858 { 2859 return xx; 2860 } 2861 } 2862 return BTM_EIR_MAX_SERVICES; 2863 } 2864 #endif 2865 2866 /******************************************************************************* 2867 ** 2868 ** Function BTM_HasEirService 2869 ** 2870 ** Description This function is called to know if UUID in bit map of UUID. 2871 ** 2872 ** Parameters p_eir_uuid - bit map of UUID list 2873 ** uuid16 - UUID 16-bit 2874 ** 2875 ** Returns TRUE - if found 2876 ** FALSE - if not found 2877 ** 2878 *******************************************************************************/ 2879 BOOLEAN BTM_HasEirService( UINT32 *p_eir_uuid, UINT16 uuid16 ) 2880 { 2881 #if ((BTM_EIR_SERVER_INCLUDED == TRUE)||(BTM_EIR_CLIENT_INCLUDED == TRUE)) 2882 UINT8 service_id; 2883 2884 service_id = btm_convert_uuid_to_eir_service(uuid16); 2885 if( service_id < BTM_EIR_MAX_SERVICES ) 2886 return( BTM_EIR_HAS_SERVICE( p_eir_uuid, service_id )); 2887 else 2888 return( FALSE ); 2889 #else 2890 return( FALSE ); 2891 #endif 2892 } 2893 2894 /******************************************************************************* 2895 ** 2896 ** Function BTM_HasInquiryEirService 2897 ** 2898 ** Description This function is called to know if UUID in bit map of UUID list. 2899 ** 2900 ** Parameters p_results - inquiry results 2901 ** uuid16 - UUID 16-bit 2902 ** 2903 ** Returns BTM_EIR_FOUND - if found 2904 ** BTM_EIR_NOT_FOUND - if not found and it is complete list 2905 ** BTM_EIR_UNKNOWN - if not found and it is not complete list 2906 ** 2907 *******************************************************************************/ 2908 tBTM_EIR_SEARCH_RESULT BTM_HasInquiryEirService( tBTM_INQ_RESULTS *p_results, UINT16 uuid16 ) 2909 { 2910 #if ((BTM_EIR_SERVER_INCLUDED == TRUE)||(BTM_EIR_CLIENT_INCLUDED == TRUE)) 2911 if( BTM_HasEirService( p_results->eir_uuid, uuid16 )) 2912 { 2913 return BTM_EIR_FOUND; 2914 } 2915 else if( p_results->eir_complete_list ) 2916 { 2917 return BTM_EIR_NOT_FOUND; 2918 } 2919 else 2920 return BTM_EIR_UNKNOWN; 2921 #else 2922 return BTM_EIR_UNKNOWN; 2923 #endif 2924 } 2925 2926 /******************************************************************************* 2927 ** 2928 ** Function BTM_AddEirService 2929 ** 2930 ** Description This function is called to add a service in bit map of UUID list. 2931 ** 2932 ** Parameters p_eir_uuid - bit mask of UUID list for EIR 2933 ** uuid16 - UUID 16-bit 2934 ** 2935 ** Returns None 2936 ** 2937 *******************************************************************************/ 2938 void BTM_AddEirService( UINT32 *p_eir_uuid, UINT16 uuid16 ) 2939 { 2940 #if ((BTM_EIR_SERVER_INCLUDED == TRUE)||(BTM_EIR_CLIENT_INCLUDED == TRUE)) 2941 UINT8 service_id; 2942 2943 service_id = btm_convert_uuid_to_eir_service(uuid16); 2944 if( service_id < BTM_EIR_MAX_SERVICES ) 2945 BTM_EIR_SET_SERVICE( p_eir_uuid, service_id ); 2946 #endif 2947 } 2948 2949 /******************************************************************************* 2950 ** 2951 ** Function BTM_RemoveEirService 2952 ** 2953 ** Description This function is called to remove a service in bit map of UUID list. 2954 ** 2955 ** Parameters p_eir_uuid - bit mask of UUID list for EIR 2956 ** uuid16 - UUID 16-bit 2957 ** 2958 ** Returns None 2959 ** 2960 *******************************************************************************/ 2961 void BTM_RemoveEirService( UINT32 *p_eir_uuid, UINT16 uuid16 ) 2962 { 2963 #if (BTM_EIR_SERVER_INCLUDED == TRUE) 2964 UINT8 service_id; 2965 2966 service_id = btm_convert_uuid_to_eir_service(uuid16); 2967 if( service_id < BTM_EIR_MAX_SERVICES ) 2968 BTM_EIR_CLR_SERVICE( p_eir_uuid, service_id ); 2969 #endif 2970 } 2971 2972 /******************************************************************************* 2973 ** 2974 ** Function BTM_GetEirSupportedServices 2975 ** 2976 ** Description This function is called to get UUID list from bit map of UUID list. 2977 ** 2978 ** Parameters p_eir_uuid - bit mask of UUID list for EIR 2979 ** p - reference of current pointer of EIR 2980 ** max_num_uuid16 - max number of UUID can be written in EIR 2981 ** num_uuid16 - number of UUID have been written in EIR 2982 ** 2983 ** Returns BTM_EIR_MORE_16BITS_UUID_TYPE, if it has more than max 2984 ** BTM_EIR_COMPLETE_16BITS_UUID_TYPE, otherwise 2985 ** 2986 *******************************************************************************/ 2987 UINT8 BTM_GetEirSupportedServices( UINT32 *p_eir_uuid, UINT8 **p, 2988 UINT8 max_num_uuid16, UINT8 *p_num_uuid16) 2989 { 2990 #if (BTM_EIR_SERVER_INCLUDED == TRUE) 2991 UINT8 service_index; 2992 2993 *p_num_uuid16 = 0; 2994 2995 for(service_index = 0; service_index < BTM_EIR_MAX_SERVICES; service_index++) 2996 { 2997 if( BTM_EIR_HAS_SERVICE( p_eir_uuid, service_index )) 2998 { 2999 if( *p_num_uuid16 < max_num_uuid16 ) 3000 { 3001 UINT16_TO_STREAM(*p, BTM_EIR_UUID_LKUP_TBL[service_index]); 3002 (*p_num_uuid16)++; 3003 } 3004 /* if max number of UUIDs are stored and found one more */ 3005 else 3006 { 3007 return BTM_EIR_MORE_16BITS_UUID_TYPE; 3008 } 3009 } 3010 } 3011 return BTM_EIR_COMPLETE_16BITS_UUID_TYPE; 3012 #else 3013 return BTM_EIR_COMPLETE_16BITS_UUID_TYPE; 3014 #endif 3015 } 3016 3017 /******************************************************************************* 3018 ** 3019 ** Function BTM_GetEirUuidList 3020 ** 3021 ** Description This function parses EIR and returns UUID list. 3022 ** 3023 ** Parameters p_eir - EIR 3024 ** uuid_size - LEN_UUID_16, LEN_UUID_32, LEN_UUID_128 3025 ** p_num_uuid - return number of UUID in found list 3026 ** p_uuid_list - return UUID list 3027 ** max_num_uuid - maximum number of UUID to be returned 3028 ** 3029 ** Returns 0 - if not found 3030 ** BTM_EIR_COMPLETE_16BITS_UUID_TYPE 3031 ** BTM_EIR_MORE_16BITS_UUID_TYPE 3032 ** BTM_EIR_COMPLETE_32BITS_UUID_TYPE 3033 ** BTM_EIR_MORE_32BITS_UUID_TYPE 3034 ** BTM_EIR_COMPLETE_128BITS_UUID_TYPE 3035 ** BTM_EIR_MORE_128BITS_UUID_TYPE 3036 ** 3037 *******************************************************************************/ 3038 UINT8 BTM_GetEirUuidList( UINT8 *p_eir, UINT8 uuid_size, UINT8 *p_num_uuid, 3039 UINT8 *p_uuid_list, UINT8 max_num_uuid) 3040 { 3041 #if (BTM_EIR_CLIENT_INCLUDED == TRUE) 3042 UINT8 *p_uuid_data; 3043 UINT8 type; 3044 UINT8 yy, xx; 3045 UINT16 *p_uuid16 = (UINT16 *)p_uuid_list; 3046 UINT32 *p_uuid32 = (UINT32 *)p_uuid_list; 3047 char buff[LEN_UUID_128 * 2 + 1]; 3048 3049 p_uuid_data = btm_eir_get_uuid_list( p_eir, uuid_size, p_num_uuid, &type ); 3050 if( p_uuid_data == NULL ) 3051 { 3052 return 0x00; 3053 } 3054 3055 if( *p_num_uuid > max_num_uuid ) 3056 { 3057 BTM_TRACE_WARNING2("BTM_GetEirUuidList number of uuid in EIR = %d, size of uuid list = %d", 3058 *p_num_uuid, max_num_uuid ); 3059 *p_num_uuid = max_num_uuid; 3060 } 3061 3062 BTM_TRACE_DEBUG2("BTM_GetEirUuidList type = %02X, number of uuid = %d", type, *p_num_uuid ); 3063 3064 if( uuid_size == LEN_UUID_16 ) 3065 { 3066 for( yy = 0; yy < *p_num_uuid; yy++ ) 3067 { 3068 STREAM_TO_UINT16(*(p_uuid16 + yy), p_uuid_data); 3069 BTM_TRACE_DEBUG1(" 0x%04X", *(p_uuid16 + yy)); 3070 } 3071 } 3072 else if( uuid_size == LEN_UUID_32 ) 3073 { 3074 for( yy = 0; yy < *p_num_uuid; yy++ ) 3075 { 3076 STREAM_TO_UINT32(*(p_uuid32 + yy), p_uuid_data); 3077 BTM_TRACE_DEBUG1(" 0x%08X", *(p_uuid32 + yy)); 3078 } 3079 } 3080 else if( uuid_size == LEN_UUID_128 ) 3081 { 3082 for( yy = 0; yy < *p_num_uuid; yy++ ) 3083 { 3084 STREAM_TO_ARRAY16(p_uuid_list + yy * LEN_UUID_128, p_uuid_data); 3085 for( xx = 0; xx < LEN_UUID_128; xx++ ) 3086 sprintf(buff + xx*2, "%02X", *(p_uuid_list + yy * LEN_UUID_128 + xx)); 3087 BTM_TRACE_DEBUG1(" 0x%s", buff); 3088 } 3089 } 3090 3091 return type; 3092 #else 3093 *p_num_uuid = 0; 3094 return 0x00; 3095 #endif 3096 } 3097 3098 3099 #if (BTM_EIR_CLIENT_INCLUDED == TRUE) 3100 /******************************************************************************* 3101 ** 3102 ** Function btm_eir_get_uuid_list 3103 ** 3104 ** Description This function searches UUID list in EIR. 3105 ** 3106 ** Parameters p_eir - address of EIR 3107 ** uuid_size - size of UUID to find 3108 ** p_num_uuid - number of UUIDs found 3109 ** p_uuid_list_type - EIR data type 3110 ** 3111 ** Returns NULL - if UUID list with uuid_size is not found 3112 ** beginning of UUID list in EIR - otherwise 3113 ** 3114 *******************************************************************************/ 3115 static UINT8 *btm_eir_get_uuid_list( UINT8 *p_eir, UINT8 uuid_size, 3116 UINT8 *p_num_uuid, UINT8 *p_uuid_list_type ) 3117 { 3118 UINT8 *p_uuid_data; 3119 UINT8 complete_type, more_type; 3120 UINT8 uuid_len; 3121 3122 switch( uuid_size ) 3123 { 3124 case LEN_UUID_16: 3125 complete_type = BTM_EIR_COMPLETE_16BITS_UUID_TYPE; 3126 more_type = BTM_EIR_MORE_16BITS_UUID_TYPE; 3127 break; 3128 case LEN_UUID_32: 3129 complete_type = BTM_EIR_COMPLETE_32BITS_UUID_TYPE; 3130 more_type = BTM_EIR_MORE_32BITS_UUID_TYPE; 3131 break; 3132 case LEN_UUID_128: 3133 complete_type = BTM_EIR_COMPLETE_128BITS_UUID_TYPE; 3134 more_type = BTM_EIR_MORE_128BITS_UUID_TYPE; 3135 break; 3136 default: 3137 *p_num_uuid = 0; 3138 return NULL; 3139 break; 3140 } 3141 3142 p_uuid_data = BTM_CheckEirData( p_eir, complete_type, &uuid_len ); 3143 if(p_uuid_data == NULL) 3144 { 3145 p_uuid_data = BTM_CheckEirData( p_eir, more_type, &uuid_len ); 3146 *p_uuid_list_type = more_type; 3147 } 3148 else 3149 { 3150 *p_uuid_list_type = complete_type; 3151 } 3152 3153 *p_num_uuid = uuid_len / uuid_size; 3154 return p_uuid_data; 3155 } 3156 3157 /******************************************************************************* 3158 ** 3159 ** Function btm_convert_uuid_to_uuid16 3160 ** 3161 ** Description This function converts UUID to UUID 16-bit. 3162 ** 3163 ** Parameters p_uuid - address of UUID 3164 ** uuid_size - size of UUID 3165 ** 3166 ** Returns 0 - if UUID cannot be converted to UUID 16-bit 3167 ** UUID 16-bit - otherwise 3168 ** 3169 *******************************************************************************/ 3170 static UINT16 btm_convert_uuid_to_uuid16( UINT8 *p_uuid, UINT8 uuid_size ) 3171 { 3172 static const UINT8 base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, 3173 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; 3174 UINT16 uuid16 = 0; 3175 UINT32 uuid32; 3176 BOOLEAN is_base_uuid; 3177 UINT8 xx; 3178 3179 switch (uuid_size) 3180 { 3181 case LEN_UUID_16: 3182 STREAM_TO_UINT16 (uuid16, p_uuid); 3183 break; 3184 case LEN_UUID_32: 3185 STREAM_TO_UINT32 (uuid32, p_uuid); 3186 if (uuid32 < 0x10000) 3187 uuid16 = (UINT16) uuid32; 3188 break; 3189 case LEN_UUID_128: 3190 /* See if we can compress his UUID down to 16 or 32bit UUIDs */ 3191 is_base_uuid = TRUE; 3192 for (xx = 0; xx < LEN_UUID_128 - 4; xx++) 3193 { 3194 if (p_uuid[xx] != base_uuid[xx]) 3195 { 3196 is_base_uuid = FALSE; 3197 break; 3198 } 3199 } 3200 if (is_base_uuid) 3201 { 3202 if ((p_uuid[LEN_UUID_128 - 1] == 0) && (p_uuid[LEN_UUID_128 - 2] == 0)) 3203 { 3204 p_uuid += (LEN_UUID_128 - 4); 3205 STREAM_TO_UINT16(uuid16, p_uuid); 3206 } 3207 } 3208 break; 3209 default: 3210 BTM_TRACE_WARNING0("btm_convert_uuid_to_uuid16 invalid uuid size"); 3211 break; 3212 } 3213 3214 return( uuid16); 3215 } 3216 3217 /******************************************************************************* 3218 ** 3219 ** Function btm_set_eir_uuid 3220 ** 3221 ** Description This function is called to store received UUID into inquiry result. 3222 ** 3223 ** Parameters p_eir - pointer of EIR significant part 3224 ** p_results - pointer of inquiry result 3225 ** 3226 ** Returns None 3227 ** 3228 *******************************************************************************/ 3229 void btm_set_eir_uuid( UINT8 *p_eir, tBTM_INQ_RESULTS *p_results ) 3230 { 3231 UINT8 *p_uuid_data; 3232 UINT8 num_uuid; 3233 UINT16 uuid16; 3234 UINT8 yy; 3235 UINT8 type = BTM_EIR_MORE_16BITS_UUID_TYPE; 3236 3237 p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_16, &num_uuid, &type ); 3238 3239 if(type == BTM_EIR_COMPLETE_16BITS_UUID_TYPE) 3240 { 3241 p_results->eir_complete_list = TRUE; 3242 } 3243 else 3244 { 3245 p_results->eir_complete_list = FALSE; 3246 } 3247 3248 BTM_TRACE_API1("btm_set_eir_uuid eir_complete_list=0x%02X", p_results->eir_complete_list); 3249 3250 if( p_uuid_data ) 3251 { 3252 for( yy = 0; yy < num_uuid; yy++ ) 3253 { 3254 STREAM_TO_UINT16(uuid16, p_uuid_data); 3255 BTM_AddEirService( p_results->eir_uuid, uuid16 ); 3256 } 3257 } 3258 3259 p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_32, &num_uuid, &type ); 3260 if( p_uuid_data ) 3261 { 3262 for( yy = 0; yy < num_uuid; yy++ ) 3263 { 3264 uuid16 = btm_convert_uuid_to_uuid16( p_uuid_data, LEN_UUID_32 ); 3265 p_uuid_data += LEN_UUID_32; 3266 if( uuid16 ) 3267 BTM_AddEirService( p_results->eir_uuid, uuid16 ); 3268 } 3269 } 3270 3271 p_uuid_data = btm_eir_get_uuid_list( p_eir, LEN_UUID_128, &num_uuid, &type ); 3272 if( p_uuid_data ) 3273 { 3274 for( yy = 0; yy < num_uuid; yy++ ) 3275 { 3276 uuid16 = btm_convert_uuid_to_uuid16( p_uuid_data, LEN_UUID_128 ); 3277 p_uuid_data += LEN_UUID_128; 3278 if( uuid16 ) 3279 BTM_AddEirService( p_results->eir_uuid, uuid16 ); 3280 } 3281 } 3282 3283 BTM_TRACE_DEBUG2("btm_set_eir_uuid eir_uuid=0x%08X %08X", 3284 p_results->eir_uuid[1], p_results->eir_uuid[0] ); 3285 } 3286 #endif 3287 3288
