| /****************************************************************************** |
| * |
| * Copyright (C) 1999-2014 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * This file contains functions that handle inquiries. These include |
| * setting discoverable mode, controlling the mode of the Baseband, and |
| * maintaining a small database of inquiry responses, with API for people |
| * to browse it. |
| * |
| ******************************************************************************/ |
| |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "device/include/controller.h" |
| #include "osi/include/osi.h" |
| #include "osi/include/time.h" |
| |
| #include "advertise_data_parser.h" |
| #include "bt_common.h" |
| #include "bt_types.h" |
| #include "btm_api.h" |
| #include "btm_int.h" |
| #include "btu.h" |
| #include "hcidefs.h" |
| #include "hcimsgs.h" |
| |
| using bluetooth::Uuid; |
| |
| /* 3 second timeout waiting for responses */ |
| #define BTM_INQ_REPLY_TIMEOUT_MS (3 * 1000) |
| |
| /* TRUE to enable DEBUG traces for btm_inq */ |
| #ifndef BTM_INQ_DEBUG |
| #define BTM_INQ_DEBUG FALSE |
| #endif |
| |
| /******************************************************************************/ |
| /* L O C A L D A T A D E F I N I T I O N S */ |
| /******************************************************************************/ |
| static const LAP general_inq_lap = {0x9e, 0x8b, 0x33}; |
| static const LAP limited_inq_lap = {0x9e, 0x8b, 0x00}; |
| |
| const uint16_t BTM_EIR_UUID_LKUP_TBL[BTM_EIR_MAX_SERVICES] = { |
| UUID_SERVCLASS_SERVICE_DISCOVERY_SERVER, |
| /* UUID_SERVCLASS_BROWSE_GROUP_DESCRIPTOR, */ |
| /* UUID_SERVCLASS_PUBLIC_BROWSE_GROUP, */ |
| UUID_SERVCLASS_SERIAL_PORT, UUID_SERVCLASS_LAN_ACCESS_USING_PPP, |
| UUID_SERVCLASS_DIALUP_NETWORKING, UUID_SERVCLASS_IRMC_SYNC, |
| UUID_SERVCLASS_OBEX_OBJECT_PUSH, UUID_SERVCLASS_OBEX_FILE_TRANSFER, |
| UUID_SERVCLASS_IRMC_SYNC_COMMAND, UUID_SERVCLASS_HEADSET, |
| UUID_SERVCLASS_CORDLESS_TELEPHONY, UUID_SERVCLASS_AUDIO_SOURCE, |
| UUID_SERVCLASS_AUDIO_SINK, UUID_SERVCLASS_AV_REM_CTRL_TARGET, |
| /* UUID_SERVCLASS_ADV_AUDIO_DISTRIBUTION, */ |
| UUID_SERVCLASS_AV_REMOTE_CONTROL, |
| /* UUID_SERVCLASS_VIDEO_CONFERENCING, */ |
| UUID_SERVCLASS_INTERCOM, UUID_SERVCLASS_FAX, |
| UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY, |
| /* UUID_SERVCLASS_WAP, */ |
| /* UUID_SERVCLASS_WAP_CLIENT, */ |
| UUID_SERVCLASS_PANU, UUID_SERVCLASS_NAP, UUID_SERVCLASS_GN, |
| UUID_SERVCLASS_DIRECT_PRINTING, |
| /* UUID_SERVCLASS_REFERENCE_PRINTING, */ |
| UUID_SERVCLASS_IMAGING, UUID_SERVCLASS_IMAGING_RESPONDER, |
| UUID_SERVCLASS_IMAGING_AUTO_ARCHIVE, UUID_SERVCLASS_IMAGING_REF_OBJECTS, |
| UUID_SERVCLASS_HF_HANDSFREE, UUID_SERVCLASS_AG_HANDSFREE, |
| UUID_SERVCLASS_DIR_PRT_REF_OBJ_SERVICE, |
| /* UUID_SERVCLASS_REFLECTED_UI, */ |
| UUID_SERVCLASS_BASIC_PRINTING, UUID_SERVCLASS_PRINTING_STATUS, |
| UUID_SERVCLASS_HUMAN_INTERFACE, UUID_SERVCLASS_CABLE_REPLACEMENT, |
| UUID_SERVCLASS_HCRP_PRINT, UUID_SERVCLASS_HCRP_SCAN, |
| /* UUID_SERVCLASS_COMMON_ISDN_ACCESS, */ |
| /* UUID_SERVCLASS_VIDEO_CONFERENCING_GW, */ |
| /* UUID_SERVCLASS_UDI_MT, */ |
| /* UUID_SERVCLASS_UDI_TA, */ |
| /* UUID_SERVCLASS_VCP, */ |
| UUID_SERVCLASS_SAP, UUID_SERVCLASS_PBAP_PCE, UUID_SERVCLASS_PBAP_PSE, |
| UUID_SERVCLASS_PHONE_ACCESS, UUID_SERVCLASS_HEADSET_HS, |
| UUID_SERVCLASS_PNP_INFORMATION, |
| /* UUID_SERVCLASS_GENERIC_NETWORKING, */ |
| /* UUID_SERVCLASS_GENERIC_FILETRANSFER, */ |
| /* UUID_SERVCLASS_GENERIC_AUDIO, */ |
| /* UUID_SERVCLASS_GENERIC_TELEPHONY, */ |
| /* UUID_SERVCLASS_UPNP_SERVICE, */ |
| /* UUID_SERVCLASS_UPNP_IP_SERVICE, */ |
| /* UUID_SERVCLASS_ESDP_UPNP_IP_PAN, */ |
| /* UUID_SERVCLASS_ESDP_UPNP_IP_LAP, */ |
| /* UUID_SERVCLASS_ESDP_UPNP_IP_L2CAP, */ |
| UUID_SERVCLASS_VIDEO_SOURCE, UUID_SERVCLASS_VIDEO_SINK, |
| /* UUID_SERVCLASS_VIDEO_DISTRIBUTION */ |
| UUID_SERVCLASS_MESSAGE_ACCESS, UUID_SERVCLASS_MESSAGE_NOTIFICATION, |
| UUID_SERVCLASS_HDP_SOURCE, UUID_SERVCLASS_HDP_SINK}; |
| |
| /******************************************************************************/ |
| /* L O C A L F U N C T I O N P R O T O T Y P E S */ |
| /******************************************************************************/ |
| static void btm_initiate_inquiry(tBTM_INQUIRY_VAR_ST* p_inq); |
| static tBTM_STATUS btm_set_inq_event_filter(uint8_t filter_cond_type, |
| tBTM_INQ_FILT_COND* p_filt_cond); |
| static void btm_clr_inq_result_flt(void); |
| |
| static uint8_t btm_convert_uuid_to_eir_service(uint16_t uuid16); |
| static void btm_set_eir_uuid(uint8_t* p_eir, tBTM_INQ_RESULTS* p_results); |
| static const uint8_t* btm_eir_get_uuid_list(uint8_t* p_eir, size_t eir_len, |
| uint8_t uuid_size, |
| uint8_t* p_num_uuid, |
| uint8_t* p_uuid_list_type); |
| |
| /******************************************************************************* |
| * |
| * Function BTM_SetDiscoverability |
| * |
| * Description This function is called to set the device into or out of |
| * discoverable mode. Discoverable mode means inquiry |
| * scans are enabled. If a value of '0' is entered for window |
| * or interval, the default values are used. |
| * |
| * Returns BTM_SUCCESS if successful |
| * BTM_BUSY if a setting of the filter is already in progress |
| * BTM_NO_RESOURCES if couldn't get a memory pool buffer |
| * BTM_ILLEGAL_VALUE if a bad parameter was detected |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_SetDiscoverability(uint16_t inq_mode, uint16_t window, |
| uint16_t interval) { |
| uint8_t scan_mode = 0; |
| uint16_t service_class; |
| uint8_t* p_cod; |
| uint8_t major, minor; |
| DEV_CLASS cod; |
| LAP temp_lap[2]; |
| bool is_limited; |
| bool cod_limited; |
| |
| BTM_TRACE_API("BTM_SetDiscoverability"); |
| if (controller_get_interface()->supports_ble()) { |
| if (btm_ble_set_discoverability((uint16_t)(inq_mode)) == BTM_SUCCESS) { |
| btm_cb.btm_inq_vars.discoverable_mode &= (~BTM_BLE_DISCOVERABLE_MASK); |
| btm_cb.btm_inq_vars.discoverable_mode |= |
| (inq_mode & BTM_BLE_DISCOVERABLE_MASK); |
| } |
| } |
| inq_mode &= ~BTM_BLE_DISCOVERABLE_MASK; |
| |
| /*** Check mode parameter ***/ |
| if (inq_mode > BTM_MAX_DISCOVERABLE) return (BTM_ILLEGAL_VALUE); |
| |
| /* Make sure the controller is active */ |
| if (!controller_get_interface()->get_is_ready()) return (BTM_DEV_RESET); |
| |
| /* If the window and/or interval is '0', set to default values */ |
| if (!window) window = BTM_DEFAULT_DISC_WINDOW; |
| |
| if (!interval) interval = BTM_DEFAULT_DISC_INTERVAL; |
| |
| BTM_TRACE_API( |
| "BTM_SetDiscoverability: mode %d [NonDisc-0, Lim-1, Gen-2], window " |
| "0x%04x, interval 0x%04x", |
| inq_mode, window, interval); |
| |
| /*** Check for valid window and interval parameters ***/ |
| /*** Only check window and duration if mode is connectable ***/ |
| if (inq_mode != BTM_NON_DISCOVERABLE) { |
| /* window must be less than or equal to interval */ |
| if (window < HCI_MIN_INQUIRYSCAN_WINDOW || |
| window > HCI_MAX_INQUIRYSCAN_WINDOW || |
| interval < HCI_MIN_INQUIRYSCAN_INTERVAL || |
| interval > HCI_MAX_INQUIRYSCAN_INTERVAL || window > interval) { |
| return (BTM_ILLEGAL_VALUE); |
| } |
| } |
| |
| /* Set the IAC if needed */ |
| if (inq_mode != BTM_NON_DISCOVERABLE) { |
| if (inq_mode & BTM_LIMITED_DISCOVERABLE) { |
| /* Use the GIAC and LIAC codes for limited discoverable mode */ |
| memcpy(temp_lap[0], limited_inq_lap, LAP_LEN); |
| memcpy(temp_lap[1], general_inq_lap, LAP_LEN); |
| |
| btsnd_hcic_write_cur_iac_lap(2, (LAP * const)temp_lap); |
| } else { |
| btsnd_hcic_write_cur_iac_lap(1, (LAP * const) & general_inq_lap); |
| } |
| |
| scan_mode |= HCI_INQUIRY_SCAN_ENABLED; |
| } |
| |
| /* Send down the inquiry scan window and period if changed */ |
| if ((window != btm_cb.btm_inq_vars.inq_scan_window) || |
| (interval != btm_cb.btm_inq_vars.inq_scan_period)) { |
| btsnd_hcic_write_inqscan_cfg(interval, window); |
| btm_cb.btm_inq_vars.inq_scan_window = window; |
| btm_cb.btm_inq_vars.inq_scan_period = interval; |
| } |
| |
| if (btm_cb.btm_inq_vars.connectable_mode & BTM_CONNECTABLE_MASK) |
| scan_mode |= HCI_PAGE_SCAN_ENABLED; |
| |
| btsnd_hcic_write_scan_enable(scan_mode); |
| btm_cb.btm_inq_vars.discoverable_mode &= (~BTM_DISCOVERABLE_MASK); |
| btm_cb.btm_inq_vars.discoverable_mode |= inq_mode; |
| |
| /* Change the service class bit if mode has changed */ |
| p_cod = BTM_ReadDeviceClass(); |
| BTM_COD_SERVICE_CLASS(service_class, p_cod); |
| is_limited = (inq_mode & BTM_LIMITED_DISCOVERABLE) ? true : false; |
| cod_limited = (service_class & BTM_COD_SERVICE_LMTD_DISCOVER) ? true : false; |
| if (is_limited ^ cod_limited) { |
| BTM_COD_MINOR_CLASS(minor, p_cod); |
| BTM_COD_MAJOR_CLASS(major, p_cod); |
| if (is_limited) |
| service_class |= BTM_COD_SERVICE_LMTD_DISCOVER; |
| else |
| service_class &= ~BTM_COD_SERVICE_LMTD_DISCOVER; |
| |
| FIELDS_TO_COD(cod, minor, major, service_class); |
| (void)BTM_SetDeviceClass(cod); |
| } |
| |
| return (BTM_SUCCESS); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_SetInquiryScanType |
| * |
| * Description This function is called to set the iquiry scan-type to |
| * standard or interlaced. |
| * |
| * Returns BTM_SUCCESS if successful |
| * BTM_MODE_UNSUPPORTED if not a 1.2 device |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_SetInquiryScanType(uint16_t scan_type) { |
| BTM_TRACE_API("BTM_SetInquiryScanType"); |
| if (scan_type != BTM_SCAN_TYPE_STANDARD && |
| scan_type != BTM_SCAN_TYPE_INTERLACED) |
| return (BTM_ILLEGAL_VALUE); |
| |
| /* whatever app wants if device is not 1.2 scan type should be STANDARD */ |
| if (!controller_get_interface()->supports_interlaced_inquiry_scan()) |
| return (BTM_MODE_UNSUPPORTED); |
| |
| /* Check for scan type if configuration has been changed */ |
| if (scan_type != btm_cb.btm_inq_vars.inq_scan_type) { |
| if (BTM_IsDeviceUp()) { |
| btsnd_hcic_write_inqscan_type((uint8_t)scan_type); |
| btm_cb.btm_inq_vars.inq_scan_type = scan_type; |
| } else |
| return (BTM_WRONG_MODE); |
| } |
| return (BTM_SUCCESS); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_SetPageScanType |
| * |
| * Description This function is called to set the page scan-type to |
| * standard or interlaced. |
| * |
| * Returns BTM_SUCCESS if successful |
| * BTM_MODE_UNSUPPORTED if not a 1.2 device |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_SetPageScanType(uint16_t scan_type) { |
| BTM_TRACE_API("BTM_SetPageScanType"); |
| if (scan_type != BTM_SCAN_TYPE_STANDARD && |
| scan_type != BTM_SCAN_TYPE_INTERLACED) |
| return (BTM_ILLEGAL_VALUE); |
| |
| /* whatever app wants if device is not 1.2 scan type should be STANDARD */ |
| if (!controller_get_interface()->supports_interlaced_inquiry_scan()) |
| return (BTM_MODE_UNSUPPORTED); |
| |
| /* Check for scan type if configuration has been changed */ |
| if (scan_type != btm_cb.btm_inq_vars.page_scan_type) { |
| if (BTM_IsDeviceUp()) { |
| btsnd_hcic_write_pagescan_type((uint8_t)scan_type); |
| btm_cb.btm_inq_vars.page_scan_type = scan_type; |
| } else |
| return (BTM_WRONG_MODE); |
| } |
| return (BTM_SUCCESS); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_SetInquiryMode |
| * |
| * Description This function is called to set standard or with RSSI |
| * mode of the inquiry for local device. |
| * |
| * Output Params: mode - standard, with RSSI, extended |
| * |
| * Returns BTM_SUCCESS if successful |
| * BTM_NO_RESOURCES if couldn't get a memory pool buffer |
| * BTM_ILLEGAL_VALUE if a bad parameter was detected |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_SetInquiryMode(uint8_t mode) { |
| const controller_t* controller = controller_get_interface(); |
| BTM_TRACE_API("BTM_SetInquiryMode"); |
| if (mode == BTM_INQ_RESULT_STANDARD) { |
| /* mandatory mode */ |
| } else if (mode == BTM_INQ_RESULT_WITH_RSSI) { |
| if (!controller->supports_rssi_with_inquiry_results()) |
| return (BTM_MODE_UNSUPPORTED); |
| } else if (mode == BTM_INQ_RESULT_EXTENDED) { |
| if (!controller->supports_extended_inquiry_response()) |
| return (BTM_MODE_UNSUPPORTED); |
| } else |
| return (BTM_ILLEGAL_VALUE); |
| |
| if (!BTM_IsDeviceUp()) return (BTM_WRONG_MODE); |
| |
| btsnd_hcic_write_inquiry_mode(mode); |
| |
| return (BTM_SUCCESS); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_ReadDiscoverability |
| * |
| * Description This function is called to read the current discoverability |
| * mode of the device. |
| * |
| * Output Params: p_window - current inquiry scan duration |
| * p_interval - current inquiry scan interval |
| * |
| * Returns BTM_NON_DISCOVERABLE, BTM_LIMITED_DISCOVERABLE, or |
| * BTM_GENERAL_DISCOVERABLE |
| * |
| ******************************************************************************/ |
| uint16_t BTM_ReadDiscoverability(uint16_t* p_window, uint16_t* p_interval) { |
| BTM_TRACE_API("BTM_ReadDiscoverability"); |
| if (p_window) *p_window = btm_cb.btm_inq_vars.inq_scan_window; |
| |
| if (p_interval) *p_interval = btm_cb.btm_inq_vars.inq_scan_period; |
| |
| return (btm_cb.btm_inq_vars.discoverable_mode); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_SetPeriodicInquiryMode |
| * |
| * Description This function is called to set the device periodic inquiry |
| * mode. If the duration is zero, the periodic inquiry mode is |
| * cancelled. |
| * |
| * Note: We currently do not allow concurrent inquiry and |
| * periodic inquiry. |
| * |
| * Parameters: p_inqparms - pointer to the inquiry information |
| * mode - GENERAL or LIMITED inquiry |
| * duration - length in 1.28 sec intervals (If '0', the |
| * inquiry is CANCELLED) |
| * max_resps - maximum amount of devices to search for |
| * before ending the inquiry |
| * filter_cond_type - BTM_CLR_INQUIRY_FILTER, |
| * BTM_FILTER_COND_DEVICE_CLASS, or |
| * BTM_FILTER_COND_BD_ADDR |
| * filter_cond - value for the filter (based on |
| * filter_cond_type) |
| * |
| * max_delay - maximum amount of time between successive |
| * inquiries |
| * min_delay - minimum amount of time between successive |
| * inquiries |
| * p_results_cb - callback returning pointer to results |
| * (tBTM_INQ_RESULTS) |
| * |
| * Returns BTM_CMD_STARTED if successfully started |
| * BTM_ILLEGAL_VALUE if a bad parameter is detected |
| * BTM_NO_RESOURCES if could not allocate a message buffer |
| * BTM_SUCCESS - if cancelling the periodic inquiry |
| * BTM_BUSY - if an inquiry is already active |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_SetPeriodicInquiryMode(tBTM_INQ_PARMS* p_inqparms, |
| uint16_t max_delay, uint16_t min_delay, |
| tBTM_INQ_RESULTS_CB* p_results_cb) { |
| tBTM_STATUS status; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| BTM_TRACE_API( |
| "BTM_SetPeriodicInquiryMode: mode: %d, dur: %d, rsps: %d, flt: %d, min: " |
| "%d, max: %d", |
| p_inqparms->mode, p_inqparms->duration, p_inqparms->max_resps, |
| p_inqparms->filter_cond_type, min_delay, max_delay); |
| |
| /*** Make sure the device is ready ***/ |
| if (!BTM_IsDeviceUp()) return (BTM_WRONG_MODE); |
| |
| /* Only one active inquiry is allowed in this implementation. |
| Also do not allow an inquiry if the inquiry filter is being updated */ |
| if (p_inq->inq_active || p_inq->inqfilt_active) return (BTM_BUSY); |
| |
| /* If illegal parameters return false */ |
| if (p_inqparms->mode != BTM_GENERAL_INQUIRY && |
| p_inqparms->mode != BTM_LIMITED_INQUIRY) |
| return (BTM_ILLEGAL_VALUE); |
| |
| /* Verify the parameters for this command */ |
| if (p_inqparms->duration < BTM_MIN_INQUIRY_LEN || |
| p_inqparms->duration > BTM_MAX_INQUIRY_LENGTH || |
| min_delay <= p_inqparms->duration || |
| min_delay < BTM_PER_INQ_MIN_MIN_PERIOD || |
| min_delay > BTM_PER_INQ_MAX_MIN_PERIOD || max_delay <= min_delay || |
| max_delay < BTM_PER_INQ_MIN_MAX_PERIOD) |
| /* max_delay > BTM_PER_INQ_MAX_MAX_PERIOD)*/ |
| /* BTM_PER_INQ_MAX_MAX_PERIOD set to 1's in all bits. Condition resulting in |
| false always*/ |
| { |
| return (BTM_ILLEGAL_VALUE); |
| } |
| |
| /* Save the inquiry parameters to be used upon the completion of |
| * setting/clearing the inquiry filter */ |
| p_inq->inqparms = *p_inqparms; |
| p_inq->per_min_delay = min_delay; |
| p_inq->per_max_delay = max_delay; |
| p_inq->inq_cmpl_info.num_resp = 0; /* Clear the results counter */ |
| p_inq->p_inq_results_cb = p_results_cb; |
| |
| p_inq->inq_active = (uint8_t)( |
| (p_inqparms->mode == BTM_LIMITED_INQUIRY) |
| ? (BTM_LIMITED_INQUIRY_ACTIVE | BTM_PERIODIC_INQUIRY_ACTIVE) |
| : (BTM_GENERAL_INQUIRY_ACTIVE | BTM_PERIODIC_INQUIRY_ACTIVE)); |
| |
| /* If a filter is specified, then save it for later and clear the current |
| filter. |
| The setting of the filter is done upon completion of clearing of the |
| previous |
| filter. |
| */ |
| if (p_inqparms->filter_cond_type != BTM_CLR_INQUIRY_FILTER) { |
| p_inq->state = BTM_INQ_CLR_FILT_STATE; |
| p_inqparms->filter_cond_type = BTM_CLR_INQUIRY_FILTER; |
| } else /* The filter is not being used so simply clear it; the inquiry can |
| start after this operation */ |
| p_inq->state = BTM_INQ_SET_FILT_STATE; |
| |
| /* Before beginning the inquiry the current filter must be cleared, so |
| * initiate the command */ |
| status = btm_set_inq_event_filter(p_inqparms->filter_cond_type, |
| &p_inqparms->filter_cond); |
| if (status != BTM_CMD_STARTED) { |
| /* If set filter command is not succesful reset the state */ |
| p_inq->p_inq_results_cb = NULL; |
| p_inq->state = BTM_INQ_INACTIVE_STATE; |
| } |
| |
| return (status); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_CancelPeriodicInquiry |
| * |
| * Description This function cancels a periodic inquiry |
| * |
| * Returns |
| * BTM_NO_RESOURCES if could not allocate a message buffer |
| * BTM_SUCCESS - if cancelling the periodic inquiry |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_CancelPeriodicInquiry(void) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| tBTM_STATUS status = BTM_SUCCESS; |
| BTM_TRACE_API("BTM_CancelPeriodicInquiry called"); |
| |
| /*** Make sure the device is ready ***/ |
| if (!BTM_IsDeviceUp()) return (BTM_WRONG_MODE); |
| |
| /* Only cancel if one is active */ |
| if (btm_cb.btm_inq_vars.inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) { |
| btm_cb.btm_inq_vars.inq_active = BTM_INQUIRY_INACTIVE; |
| btm_cb.btm_inq_vars.p_inq_results_cb = (tBTM_INQ_RESULTS_CB*)NULL; |
| |
| btsnd_hcic_exit_per_inq(); |
| |
| /* If the event filter is in progress, mark it so that the processing of the |
| return |
| event will be ignored */ |
| if (p_inq->inqfilt_active) p_inq->pending_filt_complete_event++; |
| |
| p_inq->inqfilt_active = false; |
| p_inq->inq_counter++; |
| } |
| |
| return (status); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_SetConnectability |
| * |
| * Description This function is called to set the device into or out of |
| * connectable mode. Discoverable mode means page scans are |
| * enabled. |
| * |
| * Returns BTM_SUCCESS if successful |
| * BTM_ILLEGAL_VALUE if a bad parameter is detected |
| * BTM_NO_RESOURCES if could not allocate a message buffer |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_SetConnectability(uint16_t page_mode, uint16_t window, |
| uint16_t interval) { |
| uint8_t scan_mode = 0; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| BTM_TRACE_API("BTM_SetConnectability"); |
| |
| if (controller_get_interface()->supports_ble()) { |
| if (btm_ble_set_connectability(page_mode) != BTM_SUCCESS) { |
| return BTM_NO_RESOURCES; |
| } |
| p_inq->connectable_mode &= (~BTM_BLE_CONNECTABLE_MASK); |
| p_inq->connectable_mode |= (page_mode & BTM_BLE_CONNECTABLE_MASK); |
| } |
| page_mode &= ~BTM_BLE_CONNECTABLE_MASK; |
| |
| /*** Check mode parameter ***/ |
| if (page_mode != BTM_NON_CONNECTABLE && page_mode != BTM_CONNECTABLE) |
| return (BTM_ILLEGAL_VALUE); |
| |
| /* Make sure the controller is active */ |
| if (!controller_get_interface()->get_is_ready()) return (BTM_DEV_RESET); |
| |
| /* If the window and/or interval is '0', set to default values */ |
| if (!window) window = BTM_DEFAULT_CONN_WINDOW; |
| |
| if (!interval) interval = BTM_DEFAULT_CONN_INTERVAL; |
| |
| BTM_TRACE_API( |
| "BTM_SetConnectability: mode %d [NonConn-0, Conn-1], window 0x%04x, " |
| "interval 0x%04x", |
| page_mode, window, interval); |
| |
| /*** Check for valid window and interval parameters ***/ |
| /*** Only check window and duration if mode is connectable ***/ |
| if (page_mode == BTM_CONNECTABLE) { |
| /* window must be less than or equal to interval */ |
| if (window < HCI_MIN_PAGESCAN_WINDOW || window > HCI_MAX_PAGESCAN_WINDOW || |
| interval < HCI_MIN_PAGESCAN_INTERVAL || |
| interval > HCI_MAX_PAGESCAN_INTERVAL || window > interval) { |
| return (BTM_ILLEGAL_VALUE); |
| } |
| |
| scan_mode |= HCI_PAGE_SCAN_ENABLED; |
| } |
| |
| if ((window != p_inq->page_scan_window) || |
| (interval != p_inq->page_scan_period)) { |
| p_inq->page_scan_window = window; |
| p_inq->page_scan_period = interval; |
| btsnd_hcic_write_pagescan_cfg(interval, window); |
| } |
| |
| /* Keep the inquiry scan as previouosly set */ |
| if (p_inq->discoverable_mode & BTM_DISCOVERABLE_MASK) |
| scan_mode |= HCI_INQUIRY_SCAN_ENABLED; |
| |
| btsnd_hcic_write_scan_enable(scan_mode); |
| p_inq->connectable_mode &= (~BTM_CONNECTABLE_MASK); |
| p_inq->connectable_mode |= page_mode; |
| return (BTM_SUCCESS); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_ReadConnectability |
| * |
| * Description This function is called to read the current discoverability |
| * mode of the device. |
| * Output Params p_window - current page scan duration |
| * p_interval - current time between page scans |
| * |
| * Returns BTM_NON_CONNECTABLE or BTM_CONNECTABLE |
| * |
| ******************************************************************************/ |
| uint16_t BTM_ReadConnectability(uint16_t* p_window, uint16_t* p_interval) { |
| BTM_TRACE_API("BTM_ReadConnectability"); |
| if (p_window) *p_window = btm_cb.btm_inq_vars.page_scan_window; |
| |
| if (p_interval) *p_interval = btm_cb.btm_inq_vars.page_scan_period; |
| |
| return (btm_cb.btm_inq_vars.connectable_mode); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_IsInquiryActive |
| * |
| * Description This function returns a bit mask of the current inquiry |
| * state |
| * |
| * Returns BTM_INQUIRY_INACTIVE if inactive (0) |
| * BTM_LIMITED_INQUIRY_ACTIVE if a limted inquiry is active |
| * BTM_GENERAL_INQUIRY_ACTIVE if a general inquiry is active |
| * BTM_PERIODIC_INQUIRY_ACTIVE if a periodic inquiry is active |
| * |
| ******************************************************************************/ |
| uint16_t BTM_IsInquiryActive(void) { |
| BTM_TRACE_API("BTM_IsInquiryActive"); |
| |
| return (btm_cb.btm_inq_vars.inq_active); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_CancelInquiry |
| * |
| * Description This function cancels an inquiry if active |
| * |
| * Returns BTM_SUCCESS if successful |
| * BTM_NO_RESOURCES if could not allocate a message buffer |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_CancelInquiry(void) { |
| tBTM_STATUS status = BTM_SUCCESS; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| uint8_t active_mode = p_inq->inq_active; |
| #endif |
| BTM_TRACE_API("BTM_CancelInquiry called"); |
| |
| /*** Make sure the device is ready ***/ |
| if (!BTM_IsDeviceUp()) return (BTM_WRONG_MODE); |
| |
| /* Only cancel if not in periodic mode, otherwise the caller should call |
| * BTM_CancelPeriodicMode */ |
| if ((p_inq->inq_active & BTM_INQUIRY_ACTIVE_MASK) != 0 && |
| (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE))) { |
| p_inq->inq_active = BTM_INQUIRY_INACTIVE; |
| p_inq->state = BTM_INQ_INACTIVE_STATE; |
| p_inq->p_inq_results_cb = |
| (tBTM_INQ_RESULTS_CB*)NULL; /* Do not notify caller anymore */ |
| p_inq->p_inq_cmpl_cb = |
| (tBTM_CMPL_CB*)NULL; /* Do not notify caller anymore */ |
| |
| /* If the event filter is in progress, mark it so that the processing of the |
| return |
| event will be ignored */ |
| if (p_inq->inqfilt_active) { |
| p_inq->inqfilt_active = false; |
| p_inq->pending_filt_complete_event++; |
| } |
| /* Initiate the cancel inquiry */ |
| else { |
| if (((p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK) != 0) |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| && (active_mode & BTM_BR_INQUIRY_MASK) |
| #endif |
| ) { |
| btsnd_hcic_inq_cancel(); |
| } |
| if (((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| && (active_mode & BTM_BLE_INQ_ACTIVE_MASK) |
| #endif |
| ) |
| btm_ble_stop_inquiry(); |
| } |
| |
| /* Do not send the BUSY_LEVEL event yet. Wait for the cancel_complete event |
| * and then send the BUSY_LEVEL event |
| * btm_acl_update_busy_level (BTM_BLI_INQ_DONE_EVT); |
| */ |
| |
| p_inq->inq_counter++; |
| btm_clr_inq_result_flt(); |
| } |
| |
| return (status); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_StartInquiry |
| * |
| * Description This function is called to start an inquiry. |
| * |
| * Parameters: p_inqparms - pointer to the inquiry information |
| * mode - GENERAL or LIMITED inquiry, BR/LE bit mask |
| * seperately |
| * duration - length in 1.28 sec intervals (If '0', the |
| * inquiry is CANCELLED) |
| * max_resps - maximum amount of devices to search for |
| * before ending the inquiry |
| * filter_cond_type - BTM_CLR_INQUIRY_FILTER, |
| * BTM_FILTER_COND_DEVICE_CLASS, or |
| * BTM_FILTER_COND_BD_ADDR |
| * filter_cond - value for the filter (based on |
| * filter_cond_type) |
| * |
| * p_results_cb - Pointer to the callback routine which gets |
| * called upon receipt of an inquiry result. If |
| * this field is NULL, the application is not |
| * notified. |
| * |
| * p_cmpl_cb - Pointer to the callback routine which gets |
| * called upon completion. If this field is |
| * NULL, the application is not notified when |
| * completed. |
| * Returns tBTM_STATUS |
| * BTM_CMD_STARTED if successfully initiated |
| * BTM_BUSY if already in progress |
| * BTM_ILLEGAL_VALUE if parameter(s) are out of range |
| * BTM_NO_RESOURCES if could not allocate resources to start |
| * the command |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_StartInquiry(tBTM_INQ_PARMS* p_inqparms, |
| tBTM_INQ_RESULTS_CB* p_results_cb, |
| tBTM_CMPL_CB* p_cmpl_cb) { |
| tBTM_STATUS status = BTM_CMD_STARTED; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| BTM_TRACE_API("BTM_StartInquiry: mode: %d, dur: %d, rsps: %d, flt: %d", |
| p_inqparms->mode, p_inqparms->duration, p_inqparms->max_resps, |
| p_inqparms->filter_cond_type); |
| |
| /* Only one active inquiry is allowed in this implementation. |
| Also do not allow an inquiry if the inquiry filter is being updated */ |
| if (p_inq->inq_active || p_inq->inqfilt_active) { |
| /*check if LE observe is already running*/ |
| if (p_inq->scan_type == INQ_LE_OBSERVE && |
| p_inq->p_inq_ble_results_cb != NULL) { |
| BTM_TRACE_API("BTM_StartInquiry: LE observe in progress"); |
| p_inq->scan_type = INQ_GENERAL; |
| p_inq->inq_active = BTM_INQUIRY_INACTIVE; |
| btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE; |
| btm_send_hci_scan_enable(BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE); |
| } else { |
| BTM_TRACE_API("BTM_StartInquiry: return BUSY"); |
| return (BTM_BUSY); |
| } |
| } else |
| p_inq->scan_type = INQ_GENERAL; |
| |
| /*** Make sure the device is ready ***/ |
| if (!BTM_IsDeviceUp()) return (BTM_WRONG_MODE); |
| |
| if ((p_inqparms->mode & BTM_BR_INQUIRY_MASK) != BTM_GENERAL_INQUIRY && |
| (p_inqparms->mode & BTM_BR_INQUIRY_MASK) != BTM_LIMITED_INQUIRY && |
| (p_inqparms->mode & BTM_BLE_INQUIRY_MASK) != BTM_BLE_GENERAL_INQUIRY && |
| (p_inqparms->mode & BTM_BLE_INQUIRY_MASK) != BTM_BLE_LIMITED_INQUIRY) |
| return (BTM_ILLEGAL_VALUE); |
| |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| if (p_inq->next_state == BTM_FINISH) return BTM_ILLEGAL_VALUE; |
| #endif |
| |
| /* Save the inquiry parameters to be used upon the completion of |
| * setting/clearing the inquiry filter */ |
| p_inq->inqparms = *p_inqparms; |
| |
| /* Initialize the inquiry variables */ |
| p_inq->state = BTM_INQ_ACTIVE_STATE; |
| p_inq->p_inq_cmpl_cb = p_cmpl_cb; |
| p_inq->p_inq_results_cb = p_results_cb; |
| p_inq->inq_cmpl_info.num_resp = 0; /* Clear the results counter */ |
| p_inq->inq_active = p_inqparms->mode; |
| |
| BTM_TRACE_DEBUG("BTM_StartInquiry: p_inq->inq_active = 0x%02x", |
| p_inq->inq_active); |
| |
| /* interleave scan minimal conditions */ |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| |
| /* check if both modes are present */ |
| if ((p_inqparms->mode & BTM_BLE_INQUIRY_MASK) && |
| (p_inqparms->mode & BTM_BR_INQUIRY_MASK)) { |
| BTM_TRACE_API("BTM:Interleave Inquiry Mode Set"); |
| p_inqparms->duration = p_inqparms->intl_duration[p_inq->next_state]; |
| p_inq->inqparms.duration = p_inqparms->duration; |
| } else { |
| BTM_TRACE_API("BTM:Single Mode: No interleaving, Mode:0x%02x", |
| p_inqparms->mode); |
| p_inq->next_state = BTM_NO_INTERLEAVING; |
| } |
| #endif |
| |
| /* start LE inquiry here if requested */ |
| if ((p_inqparms->mode & BTM_BLE_INQUIRY_MASK) |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| && |
| (p_inq->next_state == BTM_BLE_ONE || p_inq->next_state == BTM_BLE_TWO || |
| p_inq->next_state == BTM_NO_INTERLEAVING) |
| #endif |
| ) |
| |
| { |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| p_inq->inq_active = (p_inqparms->mode & BTM_BLE_INQUIRY_MASK); |
| BTM_TRACE_API("BTM:Starting LE Scan with duration %d and activeMode:0x%02x", |
| p_inqparms->duration, |
| (p_inqparms->mode & BTM_BLE_INQUIRY_MASK)); |
| #endif |
| if (!controller_get_interface()->supports_ble()) { |
| p_inq->inqparms.mode &= ~BTM_BLE_INQUIRY_MASK; |
| status = BTM_ILLEGAL_VALUE; |
| } |
| /* BLE for now does not support filter condition for inquiry */ |
| else { |
| status = btm_ble_start_inquiry( |
| (uint8_t)(p_inqparms->mode & BTM_BLE_INQUIRY_MASK), |
| p_inqparms->duration); |
| if (status != BTM_CMD_STARTED) { |
| BTM_TRACE_ERROR("Err Starting LE Inquiry."); |
| p_inq->inqparms.mode &= ~BTM_BLE_INQUIRY_MASK; |
| } |
| } |
| #if (BTA_HOST_INTERLEAVE_SEARCH == FALSE) |
| p_inqparms->mode &= ~BTM_BLE_INQUIRY_MASK; |
| #endif |
| |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| if (p_inq->next_state == BTM_NO_INTERLEAVING) { |
| p_inq->next_state = BTM_FINISH; |
| } else { |
| BTM_TRACE_API( |
| "BTM:Interleaving: started LE scan, Advancing to next state: %d", |
| p_inq->next_state + 1); |
| p_inq->next_state += 1; |
| } |
| /* reset next_state if status <> BTM_Started */ |
| if (status != BTM_CMD_STARTED) p_inq->next_state = BTM_BR_ONE; |
| |
| /* if interleave scan..return here */ |
| return status; |
| #endif |
| |
| BTM_TRACE_DEBUG("BTM_StartInquiry: mode = %02x", p_inqparms->mode); |
| } |
| |
| /* we're done with this routine if BR/EDR inquiry is not desired. */ |
| if ((p_inqparms->mode & BTM_BR_INQUIRY_MASK) == BTM_INQUIRY_NONE) |
| return status; |
| |
| /* BR/EDR inquiry portion */ |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| if ((p_inq->next_state == BTM_BR_ONE || p_inq->next_state == BTM_BR_TWO || |
| p_inq->next_state == BTM_NO_INTERLEAVING)) { |
| p_inq->inq_active = (p_inqparms->mode & BTM_BR_INQUIRY_MASK); |
| #endif |
| /* If a filter is specified, then save it for later and clear the current |
| filter. |
| The setting of the filter is done upon completion of clearing of the |
| previous |
| filter. |
| */ |
| switch (p_inqparms->filter_cond_type) { |
| case BTM_CLR_INQUIRY_FILTER: |
| p_inq->state = BTM_INQ_SET_FILT_STATE; |
| break; |
| |
| case BTM_FILTER_COND_DEVICE_CLASS: |
| case BTM_FILTER_COND_BD_ADDR: |
| /* The filter is not being used so simply clear it; |
| the inquiry can start after this operation */ |
| p_inq->state = BTM_INQ_CLR_FILT_STATE; |
| p_inqparms->filter_cond_type = BTM_CLR_INQUIRY_FILTER; |
| /* =============>>>> adding LE filtering here ????? */ |
| break; |
| |
| default: |
| return (BTM_ILLEGAL_VALUE); |
| } |
| |
| /* Before beginning the inquiry the current filter must be cleared, so |
| * initiate the command */ |
| status = btm_set_inq_event_filter(p_inqparms->filter_cond_type, |
| &p_inqparms->filter_cond); |
| if (status != BTM_CMD_STARTED) p_inq->state = BTM_INQ_INACTIVE_STATE; |
| |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| if (p_inq->next_state == BTM_NO_INTERLEAVING) |
| p_inq->next_state = BTM_FINISH; |
| else { |
| BTM_TRACE_API( |
| "BTM:Interleaving: Started BTM inq, Advancing to next state: %d", |
| p_inq->next_state + 1); |
| p_inq->next_state += 1; |
| } |
| } |
| if (status != BTM_CMD_STARTED) { |
| /* Some error beginning the scan process. |
| Reset the next_state parameter.. Do we need to reset the inq_active also? |
| */ |
| BTM_TRACE_API("BTM:Interleaving: Error in Starting inquiry, status: 0x%02x", |
| status); |
| p_inq->next_state = BTM_BR_ONE; |
| } |
| #endif |
| |
| return (status); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_ReadRemoteDeviceName |
| * |
| * Description This function initiates a remote device HCI command to the |
| * controller and calls the callback when the process has |
| * completed. |
| * |
| * Input Params: remote_bda - device address of name to retrieve |
| * p_cb - callback function called when |
| * BTM_CMD_STARTED is returned. |
| * A pointer to tBTM_REMOTE_DEV_NAME is |
| * passed to the callback. |
| * |
| * Returns |
| * BTM_CMD_STARTED is returned if the request was successfully |
| * sent to HCI. |
| * BTM_BUSY if already in progress |
| * BTM_UNKNOWN_ADDR if device address is bad |
| * BTM_NO_RESOURCES if could not allocate resources to start |
| * the command |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_ReadRemoteDeviceName(const RawAddress& remote_bda, |
| tBTM_CMPL_CB* p_cb, |
| tBT_TRANSPORT transport) { |
| VLOG(1) << __func__ << ": bd addr " << remote_bda; |
| /* Use LE transport when LE is the only available option */ |
| if (transport == BT_TRANSPORT_LE) { |
| return btm_ble_read_remote_name(remote_bda, p_cb); |
| } |
| /* Use classic transport for BR/EDR and Dual Mode devices */ |
| return btm_initiate_rem_name(remote_bda, BTM_RMT_NAME_EXT, |
| BTM_EXT_RMT_NAME_TIMEOUT_MS, p_cb); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_CancelRemoteDeviceName |
| * |
| * Description This function initiates the cancel request for the specified |
| * remote device. |
| * |
| * Input Params: None |
| * |
| * Returns |
| * BTM_CMD_STARTED is returned if the request was successfully |
| * sent to HCI. |
| * BTM_NO_RESOURCES if could not allocate resources to start |
| * the command |
| * BTM_WRONG_MODE if there is not an active remote name |
| * request. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_CancelRemoteDeviceName(void) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| BTM_TRACE_API("BTM_CancelRemoteDeviceName()"); |
| |
| /* Make sure there is not already one in progress */ |
| if (p_inq->remname_active) { |
| if (BTM_UseLeLink(p_inq->remname_bda)) { |
| if (btm_ble_cancel_remote_name(p_inq->remname_bda)) |
| return (BTM_CMD_STARTED); |
| else |
| return (BTM_UNKNOWN_ADDR); |
| } else |
| btsnd_hcic_rmt_name_req_cancel(p_inq->remname_bda); |
| return (BTM_CMD_STARTED); |
| } else |
| return (BTM_WRONG_MODE); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_InqDbRead |
| * |
| * Description This function looks through the inquiry database for a match |
| * based on Bluetooth Device Address. This is the application's |
| * interface to get the inquiry details of a specific BD |
| * address. |
| * |
| * Returns pointer to entry, or NULL if not found |
| * |
| ******************************************************************************/ |
| tBTM_INQ_INFO* BTM_InqDbRead(const RawAddress& p_bda) { |
| VLOG(1) << __func__ << ": bd addr " << p_bda; |
| |
| tINQ_DB_ENT* p_ent = btm_inq_db_find(p_bda); |
| if (!p_ent) return NULL; |
| |
| return &p_ent->inq_info; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_InqDbFirst |
| * |
| * Description This function looks through the inquiry database for the |
| * first used entry, and returns that. This is used in |
| * conjunction with |
| * BTM_InqDbNext by applications as a way to walk through the |
| * inquiry database. |
| * |
| * Returns pointer to first in-use entry, or NULL if DB is empty |
| * |
| ******************************************************************************/ |
| tBTM_INQ_INFO* BTM_InqDbFirst(void) { |
| uint16_t xx; |
| tINQ_DB_ENT* p_ent = btm_cb.btm_inq_vars.inq_db; |
| |
| for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) { |
| if (p_ent->in_use) return (&p_ent->inq_info); |
| } |
| |
| /* If here, no used entry found */ |
| return ((tBTM_INQ_INFO*)NULL); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_InqDbNext |
| * |
| * Description This function looks through the inquiry database for the |
| * next used entry, and returns that. If the input parameter |
| * is NULL, the first entry is returned. |
| * |
| * Returns pointer to next in-use entry, or NULL if no more found. |
| * |
| ******************************************************************************/ |
| tBTM_INQ_INFO* BTM_InqDbNext(tBTM_INQ_INFO* p_cur) { |
| tINQ_DB_ENT* p_ent; |
| uint16_t inx; |
| |
| if (p_cur) { |
| p_ent = (tINQ_DB_ENT*)((uint8_t*)p_cur - offsetof(tINQ_DB_ENT, inq_info)); |
| inx = (uint16_t)((p_ent - btm_cb.btm_inq_vars.inq_db) + 1); |
| |
| for (p_ent = &btm_cb.btm_inq_vars.inq_db[inx]; inx < BTM_INQ_DB_SIZE; |
| inx++, p_ent++) { |
| if (p_ent->in_use) return (&p_ent->inq_info); |
| } |
| |
| /* If here, more entries found */ |
| return ((tBTM_INQ_INFO*)NULL); |
| } else |
| return (BTM_InqDbFirst()); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_ClearInqDb |
| * |
| * Description This function is called to clear out a device or all devices |
| * from the inquiry database. |
| * |
| * Parameter p_bda - (input) BD_ADDR -> Address of device to clear |
| * (NULL clears all entries) |
| * |
| * Returns BTM_BUSY if an inquiry, get remote name, or event filter |
| * is active, otherwise BTM_SUCCESS |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_ClearInqDb(const RawAddress* p_bda) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| /* If an inquiry or remote name is in progress return busy */ |
| if (p_inq->inq_active != BTM_INQUIRY_INACTIVE || p_inq->inqfilt_active) |
| return (BTM_BUSY); |
| |
| btm_clr_inq_db(p_bda); |
| |
| return (BTM_SUCCESS); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_ReadInquiryRspTxPower |
| * |
| * Description This command will read the inquiry Transmit Power level used |
| * to transmit the FHS and EIR data packets. This can be used |
| * directly in the Tx Power Level EIR data type. |
| * |
| * Returns BTM_SUCCESS if successful |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_ReadInquiryRspTxPower(tBTM_CMPL_CB* p_cb) { |
| if (btm_cb.devcb.p_inq_tx_power_cmpl_cb) return (BTM_BUSY); |
| |
| btm_cb.devcb.p_inq_tx_power_cmpl_cb = p_cb; |
| alarm_set_on_mloop(btm_cb.devcb.read_inq_tx_power_timer, |
| BTM_INQ_REPLY_TIMEOUT_MS, btm_read_inq_tx_power_timeout, |
| NULL); |
| |
| btsnd_hcic_read_inq_tx_power(); |
| return (BTM_CMD_STARTED); |
| } |
| |
| /******************************************************************************* |
| ******************************************************************************* |
| * ** |
| * BTM Internal Inquiry Functions ** |
| * ** |
| ******************************************************************************* |
| ******************************************************************************/ |
| /******************************************************************************* |
| * |
| * Function btm_inq_db_reset |
| * |
| * Description This function is called at at reset to clear the inquiry |
| * database & pending callback. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_inq_db_reset(void) { |
| tBTM_REMOTE_DEV_NAME rem_name; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| uint8_t num_responses; |
| uint8_t temp_inq_active; |
| tBTM_STATUS status; |
| |
| /* If an inquiry or periodic inquiry is active, reset the mode to inactive */ |
| if (p_inq->inq_active != BTM_INQUIRY_INACTIVE) { |
| temp_inq_active = p_inq->inq_active; /* Save so state can change BEFORE |
| callback is called */ |
| p_inq->inq_active = BTM_INQUIRY_INACTIVE; |
| |
| /* If not a periodic inquiry, the complete callback must be called to notify |
| * caller */ |
| if (temp_inq_active == BTM_LIMITED_INQUIRY_ACTIVE || |
| temp_inq_active == BTM_GENERAL_INQUIRY_ACTIVE) { |
| if (p_inq->p_inq_cmpl_cb) { |
| num_responses = 0; |
| (*p_inq->p_inq_cmpl_cb)(&num_responses); |
| } |
| } |
| } |
| |
| /* Cancel a remote name request if active, and notify the caller (if waiting) |
| */ |
| if (p_inq->remname_active) { |
| alarm_cancel(p_inq->remote_name_timer); |
| p_inq->remname_active = false; |
| p_inq->remname_bda = RawAddress::kEmpty; |
| |
| if (p_inq->p_remname_cmpl_cb) { |
| rem_name.status = BTM_DEV_RESET; |
| |
| (*p_inq->p_remname_cmpl_cb)(&rem_name); |
| p_inq->p_remname_cmpl_cb = NULL; |
| } |
| } |
| |
| /* Cancel an inquiry filter request if active, and notify the caller (if |
| * waiting) */ |
| if (p_inq->inqfilt_active) { |
| p_inq->inqfilt_active = false; |
| |
| if (p_inq->p_inqfilter_cmpl_cb) { |
| status = BTM_DEV_RESET; |
| (*p_inq->p_inqfilter_cmpl_cb)(&status); |
| } |
| } |
| |
| p_inq->state = BTM_INQ_INACTIVE_STATE; |
| p_inq->pending_filt_complete_event = 0; |
| p_inq->p_inq_results_cb = NULL; |
| btm_clr_inq_db(NULL); /* Clear out all the entries in the database */ |
| btm_clr_inq_result_flt(); |
| |
| p_inq->discoverable_mode = BTM_NON_DISCOVERABLE; |
| p_inq->connectable_mode = BTM_NON_CONNECTABLE; |
| p_inq->page_scan_type = BTM_SCAN_TYPE_STANDARD; |
| p_inq->inq_scan_type = BTM_SCAN_TYPE_STANDARD; |
| |
| p_inq->discoverable_mode |= BTM_BLE_NON_DISCOVERABLE; |
| p_inq->connectable_mode |= BTM_BLE_NON_CONNECTABLE; |
| return; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_inq_db_init |
| * |
| * Description This function is called at startup to initialize the inquiry |
| * database. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_inq_db_init(void) { |
| alarm_free(btm_cb.btm_inq_vars.remote_name_timer); |
| btm_cb.btm_inq_vars.remote_name_timer = |
| alarm_new("btm_inq.remote_name_timer"); |
| btm_cb.btm_inq_vars.no_inc_ssp = BTM_NO_SSP_ON_INQUIRY; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_inq_stop_on_ssp |
| * |
| * Description This function is called on incoming SSP |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_inq_stop_on_ssp(void) { |
| uint8_t normal_active = |
| (BTM_GENERAL_INQUIRY_ACTIVE | BTM_LIMITED_INQUIRY_ACTIVE); |
| |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG( |
| "btm_inq_stop_on_ssp: no_inc_ssp=%d inq_active:0x%x state:%d " |
| "inqfilt_active:%d", |
| 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); |
| #endif |
| if (btm_cb.btm_inq_vars.no_inc_ssp) { |
| if (btm_cb.btm_inq_vars.state == BTM_INQ_ACTIVE_STATE) { |
| if (btm_cb.btm_inq_vars.inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) { |
| BTM_CancelPeriodicInquiry(); |
| } else if (btm_cb.btm_inq_vars.inq_active & normal_active) { |
| /* can not call BTM_CancelInquiry() here. We need to report inquiry |
| * complete evt */ |
| btsnd_hcic_inq_cancel(); |
| } |
| } |
| /* do not allow inquiry to start */ |
| btm_cb.btm_inq_vars.inq_active |= BTM_SSP_INQUIRY_ACTIVE; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_inq_clear_ssp |
| * |
| * Description This function is called when pairing_state becomes idle |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_inq_clear_ssp(void) { |
| btm_cb.btm_inq_vars.inq_active &= ~BTM_SSP_INQUIRY_ACTIVE; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_clr_inq_db |
| * |
| * Description This function is called to clear out a device or all devices |
| * from the inquiry database. |
| * |
| * Parameter p_bda - (input) BD_ADDR -> Address of device to clear |
| * (NULL clears all entries) |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_clr_inq_db(const RawAddress* p_bda) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| tINQ_DB_ENT* p_ent = p_inq->inq_db; |
| uint16_t xx; |
| |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG("btm_clr_inq_db: inq_active:0x%x state:%d", |
| btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state); |
| #endif |
| for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) { |
| if (p_ent->in_use) { |
| /* If this is the specified BD_ADDR or clearing all devices */ |
| if (p_bda == NULL || (p_ent->inq_info.results.remote_bd_addr == *p_bda)) { |
| p_ent->in_use = false; |
| } |
| } |
| } |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG("inq_active:0x%x state:%d", btm_cb.btm_inq_vars.inq_active, |
| btm_cb.btm_inq_vars.state); |
| #endif |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_clr_inq_result_flt |
| * |
| * Description This function looks through the bdaddr database for a match |
| * based on Bluetooth Device Address |
| * |
| * Returns true if found, else false (new entry) |
| * |
| ******************************************************************************/ |
| static void btm_clr_inq_result_flt(void) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| osi_free_and_reset((void**)&p_inq->p_bd_db); |
| p_inq->num_bd_entries = 0; |
| p_inq->max_bd_entries = 0; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_inq_find_bdaddr |
| * |
| * Description This function looks through the bdaddr database for a match |
| * based on Bluetooth Device Address |
| * |
| * Returns true if found, else false (new entry) |
| * |
| ******************************************************************************/ |
| bool btm_inq_find_bdaddr(const RawAddress& p_bda) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| tINQ_BDADDR* p_db = &p_inq->p_bd_db[0]; |
| uint16_t xx; |
| |
| /* Don't bother searching, database doesn't exist or periodic mode */ |
| if ((p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) || !p_db) |
| return (false); |
| |
| for (xx = 0; xx < p_inq->num_bd_entries; xx++, p_db++) { |
| if (p_db->bd_addr == p_bda && p_db->inq_count == p_inq->inq_counter) |
| return (true); |
| } |
| |
| if (xx < p_inq->max_bd_entries) { |
| p_db->inq_count = p_inq->inq_counter; |
| p_db->bd_addr = p_bda; |
| p_inq->num_bd_entries++; |
| } |
| |
| /* If here, New Entry */ |
| return (false); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_inq_db_find |
| * |
| * Description This function looks through the inquiry database for a match |
| * based on Bluetooth Device Address |
| * |
| * Returns pointer to entry, or NULL if not found |
| * |
| ******************************************************************************/ |
| tINQ_DB_ENT* btm_inq_db_find(const RawAddress& p_bda) { |
| uint16_t xx; |
| tINQ_DB_ENT* p_ent = btm_cb.btm_inq_vars.inq_db; |
| |
| for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) { |
| if (p_ent->in_use && p_ent->inq_info.results.remote_bd_addr == p_bda) |
| return (p_ent); |
| } |
| |
| /* If here, not found */ |
| return (NULL); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_inq_db_new |
| * |
| * Description This function looks through the inquiry database for an |
| * unused entry. If no entry is free, it allocates the oldest |
| * entry. |
| * |
| * Returns pointer to entry |
| * |
| ******************************************************************************/ |
| tINQ_DB_ENT* btm_inq_db_new(const RawAddress& p_bda) { |
| uint16_t xx; |
| tINQ_DB_ENT* p_ent = btm_cb.btm_inq_vars.inq_db; |
| tINQ_DB_ENT* p_old = btm_cb.btm_inq_vars.inq_db; |
| uint32_t ot = 0xFFFFFFFF; |
| |
| for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) { |
| if (!p_ent->in_use) { |
| memset(p_ent, 0, sizeof(tINQ_DB_ENT)); |
| p_ent->inq_info.results.remote_bd_addr = p_bda; |
| p_ent->in_use = true; |
| |
| return (p_ent); |
| } |
| |
| if (p_ent->time_of_resp < ot) { |
| p_old = p_ent; |
| ot = p_ent->time_of_resp; |
| } |
| } |
| |
| /* If here, no free entry found. Return the oldest. */ |
| |
| memset(p_old, 0, sizeof(tINQ_DB_ENT)); |
| p_old->inq_info.results.remote_bd_addr = p_bda; |
| p_old->in_use = true; |
| |
| return (p_old); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_set_inq_event_filter |
| * |
| * Description This function is called to set the inquiry event filter. |
| * It is called by either internally, or by the external API |
| * function (BTM_SetInqEventFilter). It is used internally as |
| * part of the inquiry processing. |
| * |
| * Input Params: |
| * filter_cond_type - this is the type of inquiry filter to |
| * apply: |
| * BTM_FILTER_COND_DEVICE_CLASS, |
| * BTM_FILTER_COND_BD_ADDR, or |
| * BTM_CLR_INQUIRY_FILTER |
| * |
| * p_filt_cond - this is either a BD_ADDR or DEV_CLASS |
| * depending on the filter_cond_type |
| * (See section 4.7.3 of Core Spec 1.0b). |
| * |
| * Returns BTM_CMD_STARTED if successfully initiated |
| * BTM_NO_RESOURCES if couldn't get a memory pool buffer |
| * BTM_ILLEGAL_VALUE if a bad parameter was detected |
| * |
| ******************************************************************************/ |
| static tBTM_STATUS btm_set_inq_event_filter(uint8_t filter_cond_type, |
| tBTM_INQ_FILT_COND* p_filt_cond) { |
| uint8_t condition_length = DEV_CLASS_LEN * 2; |
| uint8_t condition_buf[DEV_CLASS_LEN * 2]; |
| uint8_t* p_cond = condition_buf; /* points to the condition to pass to HCI */ |
| |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG( |
| "btm_set_inq_event_filter: filter type %d [Clear-0, COD-1, BDADDR-2]", |
| filter_cond_type); |
| VLOG(2) << "condition " << p_filt_cond->bdaddr_cond; |
| #endif |
| |
| /* Load the correct filter condition to pass to the lower layer */ |
| switch (filter_cond_type) { |
| case BTM_FILTER_COND_DEVICE_CLASS: |
| /* copy the device class and device class fields into contiguous memory to |
| * send to HCI */ |
| memcpy(condition_buf, p_filt_cond->cod_cond.dev_class, DEV_CLASS_LEN); |
| memcpy(&condition_buf[DEV_CLASS_LEN], |
| p_filt_cond->cod_cond.dev_class_mask, DEV_CLASS_LEN); |
| |
| /* condition length should already be set as the default */ |
| break; |
| |
| case BTM_FILTER_COND_BD_ADDR: |
| p_cond = (uint8_t*)&p_filt_cond->bdaddr_cond; |
| |
| /* condition length should already be set as the default */ |
| break; |
| |
| case BTM_CLR_INQUIRY_FILTER: |
| condition_length = 0; |
| break; |
| |
| default: |
| return (BTM_ILLEGAL_VALUE); /* Bad parameter was passed in */ |
| } |
| |
| btm_cb.btm_inq_vars.inqfilt_active = true; |
| |
| /* Filter the inquiry results for the specified condition type and value */ |
| btsnd_hcic_set_event_filter(HCI_FILTER_INQUIRY_RESULT, filter_cond_type, |
| p_cond, condition_length); |
| return (BTM_CMD_STARTED); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_event_filter_complete |
| * |
| * Description This function is called when a set event filter has |
| * completed. |
| * Note: This routine currently only handles inquiry filters. |
| * Connection filters are ignored for now. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_event_filter_complete(uint8_t* p) { |
| uint8_t hci_status; |
| tBTM_STATUS status; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| tBTM_CMPL_CB* p_cb = p_inq->p_inqfilter_cmpl_cb; |
| |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG( |
| "btm_event_filter_complete: inq_active:0x%x state:%d inqfilt_active:%d", |
| btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, |
| btm_cb.btm_inq_vars.inqfilt_active); |
| #endif |
| /* If the filter complete event is from an old or cancelled request, ignore it |
| */ |
| if (p_inq->pending_filt_complete_event) { |
| p_inq->pending_filt_complete_event--; |
| return; |
| } |
| |
| /* Only process the inquiry filter; Ignore the connection filter until it |
| is used by the upper layers */ |
| if (p_inq->inqfilt_active == true) { |
| /* Extract the returned status from the buffer */ |
| STREAM_TO_UINT8(hci_status, p); |
| if (hci_status != HCI_SUCCESS) { |
| /* If standalone operation, return the error status; if embedded in the |
| * inquiry, continue the inquiry */ |
| BTM_TRACE_WARNING( |
| "BTM Warning: Set Event Filter Failed (HCI returned 0x%x)", |
| hci_status); |
| status = BTM_ERR_PROCESSING; |
| } else |
| status = BTM_SUCCESS; |
| |
| /* If the set filter was initiated externally (via BTM_SetInqEventFilter), |
| call the |
| callback function to notify the initiator that it has completed */ |
| if (p_inq->state == BTM_INQ_INACTIVE_STATE) { |
| p_inq->inqfilt_active = false; |
| if (p_cb) (*p_cb)(&status); |
| } else /* An inquiry is active (the set filter command was internally |
| generated), |
| process the next state of the process (Set a new filter or start |
| the inquiry). */ |
| { |
| if (status != BTM_SUCCESS) { |
| /* Process the inquiry complete (Error Status) */ |
| btm_process_inq_complete( |
| BTM_ERR_PROCESSING, |
| (uint8_t)(p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK)); |
| |
| /* btm_process_inq_complete() does not restore the following settings on |
| * periodic inquiry */ |
| p_inq->inqfilt_active = false; |
| p_inq->inq_active = BTM_INQUIRY_INACTIVE; |
| p_inq->state = BTM_INQ_INACTIVE_STATE; |
| |
| return; |
| } |
| |
| /* Check to see if a new filter needs to be set up */ |
| if (p_inq->state == BTM_INQ_CLR_FILT_STATE) { |
| status = btm_set_inq_event_filter(p_inq->inqparms.filter_cond_type, |
| &p_inq->inqparms.filter_cond); |
| if (status == BTM_CMD_STARTED) { |
| p_inq->state = BTM_INQ_SET_FILT_STATE; |
| } else /* Error setting the filter: Call the initiator's callback |
| function to indicate a failure */ |
| { |
| p_inq->inqfilt_active = false; |
| |
| /* Process the inquiry complete (Error Status) */ |
| btm_process_inq_complete( |
| BTM_ERR_PROCESSING, |
| (uint8_t)(p_inq->inqparms.mode & BTM_BR_INQUIRY_MASK)); |
| } |
| } else /* Initiate the Inquiry or Periodic Inquiry */ |
| { |
| p_inq->state = BTM_INQ_ACTIVE_STATE; |
| p_inq->inqfilt_active = false; |
| btm_initiate_inquiry(p_inq); |
| } |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_initiate_inquiry |
| * |
| * Description This function is called to start an inquiry or periodic |
| * inquiry upon completion of the setting and/or clearing of |
| * the inquiry filter. |
| * |
| * Inputs: p_inq (btm_cb.btm_inq_vars) - pointer to saved inquiry |
| * information |
| * mode - GENERAL or LIMITED inquiry |
| * duration - length in 1.28 sec intervals |
| * (If '0', the inquiry is CANCELLED) |
| * max_resps - maximum amount of devices to search for |
| * before ending the inquiry |
| * filter_cond_type - BTM_CLR_INQUIRY_FILTER, |
| * BTM_FILTER_COND_DEVICE_CLASS, or |
| * BTM_FILTER_COND_BD_ADDR |
| * filter_cond - value for the filter |
| * (based on filter_cond_type) |
| * |
| * Returns If an error occurs the initiator's callback is called with |
| * the error status. |
| * |
| ******************************************************************************/ |
| static void btm_initiate_inquiry(tBTM_INQUIRY_VAR_ST* p_inq) { |
| const LAP* lap; |
| tBTM_INQ_PARMS* p_inqparms = &p_inq->inqparms; |
| |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG( |
| "btm_initiate_inquiry: inq_active:0x%x state:%d inqfilt_active:%d", |
| btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, |
| btm_cb.btm_inq_vars.inqfilt_active); |
| #endif |
| btm_acl_update_busy_level(BTM_BLI_INQ_EVT); |
| |
| if (p_inq->inq_active & BTM_SSP_INQUIRY_ACTIVE) { |
| btm_process_inq_complete(BTM_NO_RESOURCES, |
| (uint8_t)(p_inqparms->mode & BTM_BR_INQUIRY_MASK)); |
| return; |
| } |
| |
| /* Make sure the number of responses doesn't overflow the database |
| * configuration */ |
| p_inqparms->max_resps = (uint8_t)((p_inqparms->max_resps <= BTM_INQ_DB_SIZE) |
| ? p_inqparms->max_resps |
| : BTM_INQ_DB_SIZE); |
| |
| lap = (p_inq->inq_active & BTM_LIMITED_INQUIRY_ACTIVE) ? &limited_inq_lap |
| : &general_inq_lap; |
| |
| if (p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) { |
| btsnd_hcic_per_inq_mode(p_inq->per_max_delay, p_inq->per_min_delay, *lap, |
| p_inqparms->duration, p_inqparms->max_resps); |
| } else { |
| btm_clr_inq_result_flt(); |
| |
| /* Allocate memory to hold bd_addrs responding */ |
| p_inq->p_bd_db = (tINQ_BDADDR*)osi_calloc(BT_DEFAULT_BUFFER_SIZE); |
| p_inq->max_bd_entries = |
| (uint16_t)(BT_DEFAULT_BUFFER_SIZE / sizeof(tINQ_BDADDR)); |
| |
| btsnd_hcic_inquiry(*lap, p_inqparms->duration, 0); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_process_inq_results |
| * |
| * Description This function is called when inquiry results are received |
| * from the device. It updates the inquiry database. If the |
| * inquiry database is full, the oldest entry is discarded. |
| * |
| * Parameters inq_res_mode - BTM_INQ_RESULT_STANDARD |
| * BTM_INQ_RESULT_WITH_RSSI |
| * BTM_INQ_RESULT_EXTENDED |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_process_inq_results(uint8_t* p, uint8_t inq_res_mode) { |
| uint8_t num_resp, xx; |
| RawAddress bda; |
| tINQ_DB_ENT* p_i; |
| tBTM_INQ_RESULTS* p_cur = NULL; |
| bool is_new = true; |
| bool update = false; |
| int8_t i_rssi; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| tBTM_INQ_RESULTS_CB* p_inq_results_cb = p_inq->p_inq_results_cb; |
| uint8_t page_scan_rep_mode = 0; |
| uint8_t page_scan_per_mode = 0; |
| uint8_t page_scan_mode = 0; |
| uint8_t rssi = 0; |
| DEV_CLASS dc; |
| uint16_t clock_offset; |
| uint8_t* p_eir_data = NULL; |
| |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG( |
| "btm_process_inq_results inq_active:0x%x state:%d inqfilt_active:%d", |
| btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, |
| btm_cb.btm_inq_vars.inqfilt_active); |
| #endif |
| /* Only process the results if the BR inquiry is still active */ |
| if (!(p_inq->inq_active & BTM_BR_INQ_ACTIVE_MASK)) return; |
| |
| STREAM_TO_UINT8(num_resp, p); |
| |
| if (inq_res_mode == BTM_INQ_RESULT_EXTENDED && (num_resp > 1)) { |
| BTM_TRACE_ERROR("btm_process_inq_results() extended results (%d) > 1", |
| num_resp); |
| return; |
| } |
| |
| for (xx = 0; xx < num_resp; xx++) { |
| update = false; |
| /* Extract inquiry results */ |
| STREAM_TO_BDADDR(bda, p); |
| STREAM_TO_UINT8(page_scan_rep_mode, p); |
| STREAM_TO_UINT8(page_scan_per_mode, p); |
| |
| if (inq_res_mode == BTM_INQ_RESULT_STANDARD) { |
| STREAM_TO_UINT8(page_scan_mode, p); |
| } |
| |
| STREAM_TO_DEVCLASS(dc, p); |
| STREAM_TO_UINT16(clock_offset, p); |
| if (inq_res_mode != BTM_INQ_RESULT_STANDARD) { |
| STREAM_TO_UINT8(rssi, p); |
| } |
| |
| p_i = btm_inq_db_find(bda); |
| |
| /* Only process the num_resp is smaller than max_resps. |
| If results are queued to BTU task while canceling inquiry, |
| or when more than one result is in this response, > max_resp |
| responses could be processed which can confuse some apps |
| */ |
| if (p_inq->inqparms.max_resps && |
| p_inq->inq_cmpl_info.num_resp >= p_inq->inqparms.max_resps |
| /* new device response */ |
| && |
| (p_i == NULL || |
| /* exisiting device with BR/EDR info */ |
| (p_i && |
| (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) != 0))) { |
| /* BTM_TRACE_WARNING("INQ RES: Extra Response Received...ignoring"); */ |
| return; |
| } |
| |
| /* Check if this address has already been processed for this inquiry */ |
| if (btm_inq_find_bdaddr(bda)) { |
| /* BTM_TRACE_DEBUG("BDA seen before [%02x%02x %02x%02x %02x%02x]", |
| bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);*/ |
| /* By default suppose no update needed */ |
| i_rssi = (int8_t)rssi; |
| |
| /* If this new RSSI is higher than the last one */ |
| if (p_inq->inqparms.report_dup && (rssi != 0) && p_i && |
| (i_rssi > p_i->inq_info.results.rssi || |
| p_i->inq_info.results.rssi == 0 |
| /* BR/EDR inquiry information update */ |
| || |
| (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BREDR) != 0)) { |
| p_cur = &p_i->inq_info.results; |
| BTM_TRACE_DEBUG("update RSSI new:%d, old:%d", i_rssi, p_cur->rssi); |
| p_cur->rssi = i_rssi; |
| update = true; |
| } |
| /* If we received a second Extended Inq Event for an already */ |
| /* discovered device, this is because for the first one EIR was not |
| received */ |
| else if ((inq_res_mode == BTM_INQ_RESULT_EXTENDED) && (p_i)) { |
| p_cur = &p_i->inq_info.results; |
| update = true; |
| } |
| /* If no update needed continue with next response (if any) */ |
| else |
| continue; |
| } |
| |
| /* If existing entry, use that, else get a new one (possibly reusing the |
| * oldest) */ |
| if (p_i == NULL) { |
| p_i = btm_inq_db_new(bda); |
| is_new = true; |
| } |
| |
| /* If an entry for the device already exists, overwrite it ONLY if it is |
| from |
| a previous inquiry. (Ignore it if it is a duplicate response from the |
| same |
| inquiry. |
| */ |
| else if (p_i->inq_count == p_inq->inq_counter && |
| (p_i->inq_info.results.device_type == BT_DEVICE_TYPE_BREDR)) |
| is_new = false; |
| |
| /* keep updating RSSI to have latest value */ |
| if (inq_res_mode != BTM_INQ_RESULT_STANDARD) |
| p_i->inq_info.results.rssi = (int8_t)rssi; |
| else |
| p_i->inq_info.results.rssi = BTM_INQ_RES_IGNORE_RSSI; |
| |
| if (is_new == true) { |
| /* Save the info */ |
| p_cur = &p_i->inq_info.results; |
| p_cur->page_scan_rep_mode = page_scan_rep_mode; |
| p_cur->page_scan_per_mode = page_scan_per_mode; |
| p_cur->page_scan_mode = page_scan_mode; |
| p_cur->dev_class[0] = dc[0]; |
| p_cur->dev_class[1] = dc[1]; |
| p_cur->dev_class[2] = dc[2]; |
| p_cur->clock_offset = clock_offset | BTM_CLOCK_OFFSET_VALID; |
| |
| p_i->time_of_resp = time_get_os_boottime_ms(); |
| |
| if (p_i->inq_count != p_inq->inq_counter) |
| p_inq->inq_cmpl_info.num_resp++; /* A new response was found */ |
| |
| p_cur->inq_result_type = BTM_INQ_RESULT_BR; |
| if (p_i->inq_count != p_inq->inq_counter) { |
| p_cur->device_type = BT_DEVICE_TYPE_BREDR; |
| p_i->scan_rsp = false; |
| } else |
| p_cur->device_type |= BT_DEVICE_TYPE_BREDR; |
| p_i->inq_count = p_inq->inq_counter; /* Mark entry for current inquiry */ |
| |
| /* If the number of responses found and not unlimited, issue a cancel |
| * inquiry */ |
| if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) && |
| p_inq->inqparms.max_resps && |
| p_inq->inq_cmpl_info.num_resp == p_inq->inqparms.max_resps && |
| /* BLE scanning is active and received adv */ |
| ((((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) && |
| p_cur->device_type == BT_DEVICE_TYPE_DUMO && p_i->scan_rsp) || |
| (p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) == 0)) { |
| /* BTM_TRACE_DEBUG("BTMINQ: Found devices, cancelling |
| * inquiry..."); */ |
| btsnd_hcic_inq_cancel(); |
| |
| if ((p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK) != 0) |
| btm_ble_stop_inquiry(); |
| btm_acl_update_busy_level(BTM_BLI_INQ_DONE_EVT); |
| } |
| /* Initialize flag to false. This flag is set/used by application */ |
| p_i->inq_info.appl_knows_rem_name = false; |
| } |
| |
| if (is_new || update) { |
| if (inq_res_mode == BTM_INQ_RESULT_EXTENDED) { |
| memset(p_cur->eir_uuid, 0, |
| BTM_EIR_SERVICE_ARRAY_SIZE * (BTM_EIR_ARRAY_BITS / 8)); |
| /* set bit map of UUID list from received EIR */ |
| btm_set_eir_uuid(p, p_cur); |
| p_eir_data = p; |
| } else |
| p_eir_data = NULL; |
| |
| /* If a callback is registered, call it with the results */ |
| if (p_inq_results_cb) |
| (p_inq_results_cb)((tBTM_INQ_RESULTS*)p_cur, p_eir_data, 62); |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_sort_inq_result |
| * |
| * Description This function is called when inquiry complete is received |
| * from the device to sort inquiry results based on rssi. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_sort_inq_result(void) { |
| uint8_t xx, yy, num_resp; |
| tINQ_DB_ENT* p_ent = btm_cb.btm_inq_vars.inq_db; |
| tINQ_DB_ENT* p_next = btm_cb.btm_inq_vars.inq_db + 1; |
| int size; |
| tINQ_DB_ENT* p_tmp = (tINQ_DB_ENT*)osi_malloc(sizeof(tINQ_DB_ENT)); |
| |
| num_resp = (btm_cb.btm_inq_vars.inq_cmpl_info.num_resp < BTM_INQ_DB_SIZE) |
| ? btm_cb.btm_inq_vars.inq_cmpl_info.num_resp |
| : BTM_INQ_DB_SIZE; |
| |
| size = sizeof(tINQ_DB_ENT); |
| for (xx = 0; xx < num_resp - 1; xx++, p_ent++) { |
| for (yy = xx + 1, p_next = p_ent + 1; yy < num_resp; yy++, p_next++) { |
| if (p_ent->inq_info.results.rssi < p_next->inq_info.results.rssi) { |
| memcpy(p_tmp, p_next, size); |
| memcpy(p_next, p_ent, size); |
| memcpy(p_ent, p_tmp, size); |
| } |
| } |
| } |
| |
| osi_free(p_tmp); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_process_inq_complete |
| * |
| * Description This function is called when inquiry complete is received |
| * from the device. Call the callback if not in periodic |
| * inquiry mode AND it is not NULL |
| * (The caller wants the event). |
| * |
| * The callback pass back the status and the number of |
| * responses |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_process_inq_complete(uint8_t status, uint8_t mode) { |
| tBTM_CMPL_CB* p_inq_cb = btm_cb.btm_inq_vars.p_inq_cmpl_cb; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| /* inquiry inactive case happens when inquiry is cancelled. |
| Make mode 0 for no further inquiries from the current inquiry process |
| */ |
| if (status != HCI_SUCCESS || p_inq->next_state == BTM_FINISH || |
| !p_inq->inq_active) { |
| /* re-initialize for next inquiry request */ |
| p_inq->next_state = BTM_BR_ONE; |
| /* make the mode 0 here */ |
| p_inq->inqparms.mode &= ~(p_inq->inqparms.mode); |
| } |
| #endif |
| |
| #if (BTA_HOST_INTERLEAVE_SEARCH == FALSE) |
| p_inq->inqparms.mode &= ~(mode); |
| #endif |
| |
| if (p_inq->scan_type == INQ_LE_OBSERVE && !p_inq->inq_active) { |
| /*end of LE observe*/ |
| p_inq->p_inq_ble_results_cb = (tBTM_INQ_RESULTS_CB*)NULL; |
| p_inq->p_inq_ble_cmpl_cb = (tBTM_CMPL_CB*)NULL; |
| p_inq->scan_type = INQ_NONE; |
| } |
| |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG( |
| "btm_process_inq_complete inq_active:0x%x state:%d inqfilt_active:%d", |
| btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, |
| btm_cb.btm_inq_vars.inqfilt_active); |
| #endif |
| btm_acl_update_busy_level(BTM_BLI_INQ_DONE_EVT); |
| /* Ignore any stray or late complete messages if the inquiry is not active */ |
| if (p_inq->inq_active) { |
| p_inq->inq_cmpl_info.status = (tBTM_STATUS)( |
| (status == HCI_SUCCESS) ? BTM_SUCCESS : BTM_ERR_PROCESSING); |
| |
| /* Notify caller that the inquiry has completed; (periodic inquiries do not |
| * send completion events */ |
| if (!(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) && |
| p_inq->inqparms.mode == 0) { |
| btm_clear_all_pending_le_entry(); |
| p_inq->state = BTM_INQ_INACTIVE_STATE; |
| |
| /* Increment so the start of a next inquiry has a new count */ |
| p_inq->inq_counter++; |
| |
| btm_clr_inq_result_flt(); |
| |
| if ((p_inq->inq_cmpl_info.status == BTM_SUCCESS) && |
| controller_get_interface()->supports_rssi_with_inquiry_results()) { |
| btm_sort_inq_result(); |
| } |
| |
| /* Clear the results callback if set */ |
| p_inq->p_inq_results_cb = (tBTM_INQ_RESULTS_CB*)NULL; |
| p_inq->inq_active = BTM_INQUIRY_INACTIVE; |
| p_inq->p_inq_cmpl_cb = (tBTM_CMPL_CB*)NULL; |
| |
| /* If we have a callback registered for inquiry complete, call it */ |
| BTM_TRACE_DEBUG("BTM Inq Compl Callback: status 0x%02x, num results %d", |
| p_inq->inq_cmpl_info.status, |
| p_inq->inq_cmpl_info.num_resp); |
| |
| if (p_inq_cb) (p_inq_cb)((tBTM_INQUIRY_CMPL*)&p_inq->inq_cmpl_info); |
| } |
| #if (BTA_HOST_INTERLEAVE_SEARCH == TRUE) |
| if (p_inq->inqparms.mode != 0 && |
| !(p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE)) { |
| /* make inquiry inactive for next iteration */ |
| p_inq->inq_active = BTM_INQUIRY_INACTIVE; |
| /* call the inquiry again */ |
| BTM_StartInquiry(&p_inq->inqparms, p_inq->p_inq_results_cb, |
| p_inq->p_inq_cmpl_cb); |
| } |
| #endif |
| } |
| if (p_inq->inqparms.mode == 0 && |
| p_inq->scan_type == INQ_GENERAL) // this inquiry is complete |
| { |
| p_inq->scan_type = INQ_NONE; |
| /* check if the LE observe is pending */ |
| if (p_inq->p_inq_ble_results_cb != NULL) { |
| BTM_TRACE_DEBUG("BTM Inq Compl: resuming a pending LE scan"); |
| BTM_BleObserve(1, 0, p_inq->p_inq_ble_results_cb, |
| p_inq->p_inq_ble_cmpl_cb); |
| } |
| } |
| #if (BTM_INQ_DEBUG == TRUE) |
| BTM_TRACE_DEBUG("inq_active:0x%x state:%d inqfilt_active:%d", |
| btm_cb.btm_inq_vars.inq_active, btm_cb.btm_inq_vars.state, |
| btm_cb.btm_inq_vars.inqfilt_active); |
| #endif |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_process_cancel_complete |
| * |
| * Description This function is called when inquiry cancel complete is |
| * received from the device. This function will also call the |
| * btm_process_inq_complete. This function is needed to |
| * differentiate a cancel_cmpl_evt from the inq_cmpl_evt. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_process_cancel_complete(uint8_t status, uint8_t mode) { |
| btm_acl_update_busy_level(BTM_BLI_INQ_CANCEL_EVT); |
| btm_process_inq_complete(status, mode); |
| } |
| /******************************************************************************* |
| * |
| * Function btm_initiate_rem_name |
| * |
| * Description This function looks initiates a remote name request. It is |
| * called either by GAP or by the API call |
| * BTM_ReadRemoteDeviceName. |
| * |
| * Input Params: p_cb - callback function called when |
| * BTM_CMD_STARTED is returned. |
| * A pointer to tBTM_REMOTE_DEV_NAME is |
| * passed to the callback. |
| * |
| * Returns |
| * BTM_CMD_STARTED is returned if the request was sent to HCI. |
| * BTM_BUSY if already in progress |
| * BTM_NO_RESOURCES if could not allocate resources to start |
| * the command |
| * BTM_WRONG_MODE if the device is not up. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS btm_initiate_rem_name(const RawAddress& remote_bda, uint8_t origin, |
| period_ms_t timeout_ms, tBTM_CMPL_CB* p_cb) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| /*** Make sure the device is ready ***/ |
| if (!BTM_IsDeviceUp()) return (BTM_WRONG_MODE); |
| |
| if (origin == BTM_RMT_NAME_SEC) { |
| btsnd_hcic_rmt_name_req(remote_bda, HCI_PAGE_SCAN_REP_MODE_R1, |
| HCI_MANDATARY_PAGE_SCAN_MODE, 0); |
| return BTM_CMD_STARTED; |
| } |
| /* Make sure there are no two remote name requests from external API in |
| progress */ |
| else if (origin == BTM_RMT_NAME_EXT) { |
| if (p_inq->remname_active) { |
| return (BTM_BUSY); |
| } else { |
| /* If there is no remote name request running,call the callback function |
| * and start timer */ |
| p_inq->p_remname_cmpl_cb = p_cb; |
| p_inq->remname_bda = remote_bda; |
| |
| alarm_set_on_mloop(p_inq->remote_name_timer, timeout_ms, |
| btm_inq_remote_name_timer_timeout, NULL); |
| |
| /* If the database entry exists for the device, use its clock offset */ |
| tINQ_DB_ENT* p_i = btm_inq_db_find(remote_bda); |
| if (p_i) { |
| tBTM_INQ_INFO* p_cur = &p_i->inq_info; |
| btsnd_hcic_rmt_name_req( |
| remote_bda, p_cur->results.page_scan_rep_mode, |
| p_cur->results.page_scan_mode, |
| (uint16_t)(p_cur->results.clock_offset | BTM_CLOCK_OFFSET_VALID)); |
| } else { |
| /* Otherwise use defaults and mark the clock offset as invalid */ |
| btsnd_hcic_rmt_name_req(remote_bda, HCI_PAGE_SCAN_REP_MODE_R1, |
| HCI_MANDATARY_PAGE_SCAN_MODE, 0); |
| } |
| |
| p_inq->remname_active = true; |
| return BTM_CMD_STARTED; |
| } |
| } else { |
| return BTM_ILLEGAL_VALUE; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_process_remote_name |
| * |
| * Description This function is called when a remote name is received from |
| * the device. If remote names are cached, it updates the |
| * inquiry database. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_process_remote_name(const RawAddress* bda, BD_NAME bdn, |
| uint16_t evt_len, uint8_t hci_status) { |
| tBTM_REMOTE_DEV_NAME rem_name; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| tBTM_CMPL_CB* p_cb = p_inq->p_remname_cmpl_cb; |
| uint8_t* p_n1; |
| |
| uint16_t temp_evt_len; |
| |
| if (bda) { |
| VLOG(2) << "BDA " << *bda; |
| } |
| |
| VLOG(2) << "Inquire BDA " << p_inq->remname_bda; |
| |
| /* If the inquire BDA and remote DBA are the same, then stop the timer and set |
| * the active to false */ |
| if ((p_inq->remname_active == true) && |
| (!bda || (*bda == p_inq->remname_bda))) { |
| if (BTM_UseLeLink(p_inq->remname_bda)) { |
| if (hci_status == HCI_ERR_UNSPECIFIED) |
| btm_ble_cancel_remote_name(p_inq->remname_bda); |
| } |
| alarm_cancel(p_inq->remote_name_timer); |
| p_inq->remname_active = false; |
| /* Clean up and return the status if the command was not successful */ |
| /* Note: If part of the inquiry, the name is not stored, and the */ |
| /* inquiry complete callback is called. */ |
| |
| if (hci_status == HCI_SUCCESS) { |
| /* Copy the name from the data stream into the return structure */ |
| /* Note that even if it is not being returned, it is used as a */ |
| /* temporary buffer. */ |
| p_n1 = (uint8_t*)rem_name.remote_bd_name; |
| rem_name.length = (evt_len < BD_NAME_LEN) ? evt_len : BD_NAME_LEN; |
| rem_name.remote_bd_name[rem_name.length] = 0; |
| rem_name.status = BTM_SUCCESS; |
| temp_evt_len = rem_name.length; |
| |
| while (temp_evt_len > 0) { |
| *p_n1++ = *bdn++; |
| temp_evt_len--; |
| } |
| rem_name.remote_bd_name[rem_name.length] = 0; |
| } |
| |
| /* If processing a stand alone remote name then report the error in the |
| callback */ |
| else { |
| rem_name.status = BTM_BAD_VALUE_RET; |
| rem_name.length = 0; |
| rem_name.remote_bd_name[0] = 0; |
| } |
| /* Reset the remote BAD to zero and call callback if possible */ |
| p_inq->remname_bda = RawAddress::kEmpty; |
| |
| p_inq->p_remname_cmpl_cb = NULL; |
| if (p_cb) (p_cb)((tBTM_REMOTE_DEV_NAME*)&rem_name); |
| } |
| } |
| |
| void btm_inq_remote_name_timer_timeout(UNUSED_ATTR void* data) { |
| btm_inq_rmt_name_failed(); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_inq_rmt_name_failed |
| * |
| * Description This function is if timeout expires while getting remote |
| * name. This is done for devices that incorrectly do not |
| * report operation failure |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_inq_rmt_name_failed(void) { |
| BTM_TRACE_ERROR("btm_inq_rmt_name_failed() remname_active=%d", |
| btm_cb.btm_inq_vars.remname_active); |
| |
| if (btm_cb.btm_inq_vars.remname_active) |
| btm_process_remote_name(&btm_cb.btm_inq_vars.remname_bda, NULL, 0, |
| HCI_ERR_UNSPECIFIED); |
| else |
| btm_process_remote_name(NULL, NULL, 0, HCI_ERR_UNSPECIFIED); |
| |
| btm_sec_rmt_name_request_complete(NULL, NULL, HCI_ERR_UNSPECIFIED); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_read_inq_tx_power_timeout |
| * |
| * Description Callback when reading the inquiry tx power times out. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_read_inq_tx_power_timeout(UNUSED_ATTR void* data) { |
| tBTM_CMPL_CB* p_cb = btm_cb.devcb.p_inq_tx_power_cmpl_cb; |
| btm_cb.devcb.p_inq_tx_power_cmpl_cb = NULL; |
| if (p_cb) (*p_cb)((void*)NULL); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_read_inq_tx_power_complete |
| * |
| * Description read inquiry tx power level complete callback function. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_read_inq_tx_power_complete(uint8_t* p) { |
| tBTM_CMPL_CB* p_cb = btm_cb.devcb.p_inq_tx_power_cmpl_cb; |
| tBTM_INQ_TXPWR_RESULT result; |
| |
| BTM_TRACE_DEBUG("%s", __func__); |
| alarm_cancel(btm_cb.devcb.read_inq_tx_power_timer); |
| btm_cb.devcb.p_inq_tx_power_cmpl_cb = NULL; |
| |
| /* If there was a registered callback, call it */ |
| if (p_cb) { |
| STREAM_TO_UINT8(result.hci_status, p); |
| |
| if (result.hci_status == HCI_SUCCESS) { |
| result.status = BTM_SUCCESS; |
| |
| STREAM_TO_UINT8(result.tx_power, p); |
| BTM_TRACE_EVENT( |
| "BTM INQ TX POWER Complete: tx_power %d, hci status 0x%02x", |
| result.tx_power, result.hci_status); |
| } else { |
| result.status = BTM_ERR_PROCESSING; |
| } |
| |
| (*p_cb)(&result); |
| } |
| } |
| /******************************************************************************* |
| * |
| * Function BTM_WriteEIR |
| * |
| * Description This function is called to write EIR data to controller. |
| * |
| * Parameters p_buff - allocated HCI command buffer including extended |
| * inquriry response |
| * |
| * Returns BTM_SUCCESS - if successful |
| * BTM_MODE_UNSUPPORTED - if local device cannot support it |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_WriteEIR(BT_HDR* p_buff) { |
| if (controller_get_interface()->supports_extended_inquiry_response()) { |
| BTM_TRACE_API("Write Extended Inquiry Response to controller"); |
| btsnd_hcic_write_ext_inquiry_response(p_buff, BTM_EIR_DEFAULT_FEC_REQUIRED); |
| return BTM_SUCCESS; |
| } else { |
| osi_free(p_buff); |
| return BTM_MODE_UNSUPPORTED; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_convert_uuid_to_eir_service |
| * |
| * Description This function is called to get the bit position of UUID. |
| * |
| * Parameters uuid16 - UUID 16-bit |
| * |
| * Returns BTM EIR service ID if found |
| * BTM_EIR_MAX_SERVICES - if not found |
| * |
| ******************************************************************************/ |
| static uint8_t btm_convert_uuid_to_eir_service(uint16_t uuid16) { |
| uint8_t xx; |
| |
| for (xx = 0; xx < BTM_EIR_MAX_SERVICES; xx++) { |
| if (uuid16 == BTM_EIR_UUID_LKUP_TBL[xx]) { |
| return xx; |
| } |
| } |
| return BTM_EIR_MAX_SERVICES; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_HasEirService |
| * |
| * Description This function is called to know if UUID in bit map of UUID. |
| * |
| * Parameters p_eir_uuid - bit map of UUID list |
| * uuid16 - UUID 16-bit |
| * |
| * Returns true - if found |
| * false - if not found |
| * |
| ******************************************************************************/ |
| bool BTM_HasEirService(uint32_t* p_eir_uuid, uint16_t uuid16) { |
| uint8_t service_id; |
| |
| service_id = btm_convert_uuid_to_eir_service(uuid16); |
| if (service_id < BTM_EIR_MAX_SERVICES) |
| return (BTM_EIR_HAS_SERVICE(p_eir_uuid, service_id)); |
| else |
| return (false); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_HasInquiryEirService |
| * |
| * Description This function is called to know if UUID in bit map of UUID |
| * list. |
| * |
| * Parameters p_results - inquiry results |
| * uuid16 - UUID 16-bit |
| * |
| * Returns BTM_EIR_FOUND - if found |
| * BTM_EIR_NOT_FOUND - if not found and it is complete list |
| * BTM_EIR_UNKNOWN - if not found and it is not complete list |
| * |
| ******************************************************************************/ |
| tBTM_EIR_SEARCH_RESULT BTM_HasInquiryEirService(tBTM_INQ_RESULTS* p_results, |
| uint16_t uuid16) { |
| if (BTM_HasEirService(p_results->eir_uuid, uuid16)) { |
| return BTM_EIR_FOUND; |
| } else if (p_results->eir_complete_list) { |
| return BTM_EIR_NOT_FOUND; |
| } else |
| return BTM_EIR_UNKNOWN; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_AddEirService |
| * |
| * Description This function is called to add a service in bit map of UUID |
| * list. |
| * |
| * Parameters p_eir_uuid - bit mask of UUID list for EIR |
| * uuid16 - UUID 16-bit |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void BTM_AddEirService(uint32_t* p_eir_uuid, uint16_t uuid16) { |
| uint8_t service_id; |
| |
| service_id = btm_convert_uuid_to_eir_service(uuid16); |
| if (service_id < BTM_EIR_MAX_SERVICES) |
| BTM_EIR_SET_SERVICE(p_eir_uuid, service_id); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_RemoveEirService |
| * |
| * Description This function is called to remove a service in bit map of |
| * UUID list. |
| * |
| * Parameters p_eir_uuid - bit mask of UUID list for EIR |
| * uuid16 - UUID 16-bit |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void BTM_RemoveEirService(uint32_t* p_eir_uuid, uint16_t uuid16) { |
| uint8_t service_id; |
| |
| service_id = btm_convert_uuid_to_eir_service(uuid16); |
| if (service_id < BTM_EIR_MAX_SERVICES) |
| BTM_EIR_CLR_SERVICE(p_eir_uuid, service_id); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_GetEirSupportedServices |
| * |
| * Description This function is called to get UUID list from bit map of |
| * UUID list. |
| * |
| * Parameters p_eir_uuid - bit mask of UUID list for EIR |
| * p - reference of current pointer of EIR |
| * max_num_uuid16 - max number of UUID can be written in EIR |
| * num_uuid16 - number of UUID have been written in EIR |
| * |
| * Returns BTM_EIR_MORE_16BITS_UUID_TYPE, if it has more than max |
| * BTM_EIR_COMPLETE_16BITS_UUID_TYPE, otherwise |
| * |
| ******************************************************************************/ |
| uint8_t BTM_GetEirSupportedServices(uint32_t* p_eir_uuid, uint8_t** p, |
| uint8_t max_num_uuid16, |
| uint8_t* p_num_uuid16) { |
| uint8_t service_index; |
| |
| *p_num_uuid16 = 0; |
| |
| for (service_index = 0; service_index < BTM_EIR_MAX_SERVICES; |
| service_index++) { |
| if (BTM_EIR_HAS_SERVICE(p_eir_uuid, service_index)) { |
| if (*p_num_uuid16 < max_num_uuid16) { |
| UINT16_TO_STREAM(*p, BTM_EIR_UUID_LKUP_TBL[service_index]); |
| (*p_num_uuid16)++; |
| } |
| /* if max number of UUIDs are stored and found one more */ |
| else { |
| return BTM_EIR_MORE_16BITS_UUID_TYPE; |
| } |
| } |
| } |
| return BTM_EIR_COMPLETE_16BITS_UUID_TYPE; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_GetEirUuidList |
| * |
| * Description This function parses EIR and returns UUID list. |
| * |
| * Parameters p_eir - EIR |
| * eir_len - EIR len |
| * uuid_size - Uuid::kNumBytes16, Uuid::kNumBytes32, |
| * Uuid::kNumBytes128 |
| * p_num_uuid - return number of UUID in found list |
| * p_uuid_list - return UUID list |
| * max_num_uuid - maximum number of UUID to be returned |
| * |
| * Returns 0 - if not found |
| * BTM_EIR_COMPLETE_16BITS_UUID_TYPE |
| * BTM_EIR_MORE_16BITS_UUID_TYPE |
| * BTM_EIR_COMPLETE_32BITS_UUID_TYPE |
| * BTM_EIR_MORE_32BITS_UUID_TYPE |
| * BTM_EIR_COMPLETE_128BITS_UUID_TYPE |
| * BTM_EIR_MORE_128BITS_UUID_TYPE |
| * |
| ******************************************************************************/ |
| uint8_t BTM_GetEirUuidList(uint8_t* p_eir, size_t eir_len, uint8_t uuid_size, |
| uint8_t* p_num_uuid, uint8_t* p_uuid_list, |
| uint8_t max_num_uuid) { |
| const uint8_t* p_uuid_data; |
| uint8_t type; |
| uint8_t yy, xx; |
| uint16_t* p_uuid16 = (uint16_t*)p_uuid_list; |
| uint32_t* p_uuid32 = (uint32_t*)p_uuid_list; |
| char buff[Uuid::kNumBytes128 * 2 + 1]; |
| |
| p_uuid_data = |
| btm_eir_get_uuid_list(p_eir, eir_len, uuid_size, p_num_uuid, &type); |
| if (p_uuid_data == NULL) { |
| return 0x00; |
| } |
| |
| if (*p_num_uuid > max_num_uuid) { |
| BTM_TRACE_WARNING("%s: number of uuid in EIR = %d, size of uuid list = %d", |
| __func__, *p_num_uuid, max_num_uuid); |
| *p_num_uuid = max_num_uuid; |
| } |
| |
| BTM_TRACE_DEBUG("%s: type = %02X, number of uuid = %d", __func__, type, |
| *p_num_uuid); |
| |
| if (uuid_size == Uuid::kNumBytes16) { |
| for (yy = 0; yy < *p_num_uuid; yy++) { |
| STREAM_TO_UINT16(*(p_uuid16 + yy), p_uuid_data); |
| BTM_TRACE_DEBUG(" 0x%04X", *(p_uuid16 + yy)); |
| } |
| } else if (uuid_size == Uuid::kNumBytes32) { |
| for (yy = 0; yy < *p_num_uuid; yy++) { |
| STREAM_TO_UINT32(*(p_uuid32 + yy), p_uuid_data); |
| BTM_TRACE_DEBUG(" 0x%08X", *(p_uuid32 + yy)); |
| } |
| } else if (uuid_size == Uuid::kNumBytes128) { |
| for (yy = 0; yy < *p_num_uuid; yy++) { |
| STREAM_TO_ARRAY16(p_uuid_list + yy * Uuid::kNumBytes128, p_uuid_data); |
| for (xx = 0; xx < Uuid::kNumBytes128; xx++) |
| snprintf(buff + xx * 2, sizeof(buff) - xx * 2, "%02X", |
| *(p_uuid_list + yy * Uuid::kNumBytes128 + xx)); |
| BTM_TRACE_DEBUG(" 0x%s", buff); |
| } |
| } |
| |
| return type; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_eir_get_uuid_list |
| * |
| * Description This function searches UUID list in EIR. |
| * |
| * Parameters p_eir - address of EIR |
| * eir_len - EIR length |
| * uuid_size - size of UUID to find |
| * p_num_uuid - number of UUIDs found |
| * p_uuid_list_type - EIR data type |
| * |
| * Returns NULL - if UUID list with uuid_size is not found |
| * beginning of UUID list in EIR - otherwise |
| * |
| ******************************************************************************/ |
| static const uint8_t* btm_eir_get_uuid_list(uint8_t* p_eir, size_t eir_len, |
| uint8_t uuid_size, |
| uint8_t* p_num_uuid, |
| uint8_t* p_uuid_list_type) { |
| const uint8_t* p_uuid_data; |
| uint8_t complete_type, more_type; |
| uint8_t uuid_len; |
| |
| switch (uuid_size) { |
| case Uuid::kNumBytes16: |
| complete_type = BTM_EIR_COMPLETE_16BITS_UUID_TYPE; |
| more_type = BTM_EIR_MORE_16BITS_UUID_TYPE; |
| break; |
| case Uuid::kNumBytes32: |
| complete_type = BTM_EIR_COMPLETE_32BITS_UUID_TYPE; |
| more_type = BTM_EIR_MORE_32BITS_UUID_TYPE; |
| break; |
| case Uuid::kNumBytes128: |
| complete_type = BTM_EIR_COMPLETE_128BITS_UUID_TYPE; |
| more_type = BTM_EIR_MORE_128BITS_UUID_TYPE; |
| break; |
| default: |
| *p_num_uuid = 0; |
| return NULL; |
| break; |
| } |
| |
| p_uuid_data = AdvertiseDataParser::GetFieldByType(p_eir, eir_len, |
| complete_type, &uuid_len); |
| if (p_uuid_data == NULL) { |
| p_uuid_data = AdvertiseDataParser::GetFieldByType(p_eir, eir_len, more_type, |
| &uuid_len); |
| *p_uuid_list_type = more_type; |
| } else { |
| *p_uuid_list_type = complete_type; |
| } |
| |
| *p_num_uuid = uuid_len / uuid_size; |
| return p_uuid_data; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_convert_uuid_to_uuid16 |
| * |
| * Description This function converts UUID to UUID 16-bit. |
| * |
| * Parameters p_uuid - address of UUID |
| * uuid_size - size of UUID |
| * |
| * Returns 0 - if UUID cannot be converted to UUID 16-bit |
| * UUID 16-bit - otherwise |
| * |
| ******************************************************************************/ |
| static uint16_t btm_convert_uuid_to_uuid16(const uint8_t* p_uuid, |
| uint8_t uuid_size) { |
| static const uint8_t base_uuid[Uuid::kNumBytes128] = { |
| 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, |
| 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
| uint16_t uuid16 = 0; |
| uint32_t uuid32; |
| bool is_base_uuid; |
| uint8_t xx; |
| |
| switch (uuid_size) { |
| case Uuid::kNumBytes16: |
| STREAM_TO_UINT16(uuid16, p_uuid); |
| break; |
| case Uuid::kNumBytes32: |
| STREAM_TO_UINT32(uuid32, p_uuid); |
| if (uuid32 < 0x10000) uuid16 = (uint16_t)uuid32; |
| break; |
| case Uuid::kNumBytes128: |
| /* See if we can compress his UUID down to 16 or 32bit UUIDs */ |
| is_base_uuid = true; |
| for (xx = 0; xx < Uuid::kNumBytes128 - 4; xx++) { |
| if (p_uuid[xx] != base_uuid[xx]) { |
| is_base_uuid = false; |
| break; |
| } |
| } |
| if (is_base_uuid) { |
| if ((p_uuid[Uuid::kNumBytes128 - 1] == 0) && |
| (p_uuid[Uuid::kNumBytes128 - 2] == 0)) { |
| p_uuid += (Uuid::kNumBytes128 - 4); |
| STREAM_TO_UINT16(uuid16, p_uuid); |
| } |
| } |
| break; |
| default: |
| BTM_TRACE_WARNING("btm_convert_uuid_to_uuid16 invalid uuid size"); |
| break; |
| } |
| |
| return (uuid16); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_set_eir_uuid |
| * |
| * Description This function is called to store received UUID into inquiry |
| * result. |
| * |
| * Parameters p_eir - pointer of EIR significant part |
| * p_results - pointer of inquiry result |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void btm_set_eir_uuid(uint8_t* p_eir, tBTM_INQ_RESULTS* p_results) { |
| const uint8_t* p_uuid_data; |
| uint8_t num_uuid; |
| uint16_t uuid16; |
| uint8_t yy; |
| uint8_t type = BTM_EIR_MORE_16BITS_UUID_TYPE; |
| |
| p_uuid_data = btm_eir_get_uuid_list(p_eir, HCI_EXT_INQ_RESPONSE_LEN, |
| Uuid::kNumBytes16, &num_uuid, &type); |
| |
| if (type == BTM_EIR_COMPLETE_16BITS_UUID_TYPE) { |
| p_results->eir_complete_list = true; |
| } else { |
| p_results->eir_complete_list = false; |
| } |
| |
| BTM_TRACE_API("btm_set_eir_uuid eir_complete_list=0x%02X", |
| p_results->eir_complete_list); |
| |
| if (p_uuid_data) { |
| for (yy = 0; yy < num_uuid; yy++) { |
| STREAM_TO_UINT16(uuid16, p_uuid_data); |
| BTM_AddEirService(p_results->eir_uuid, uuid16); |
| } |
| } |
| |
| p_uuid_data = btm_eir_get_uuid_list(p_eir, HCI_EXT_INQ_RESPONSE_LEN, |
| Uuid::kNumBytes32, &num_uuid, &type); |
| if (p_uuid_data) { |
| for (yy = 0; yy < num_uuid; yy++) { |
| uuid16 = btm_convert_uuid_to_uuid16(p_uuid_data, Uuid::kNumBytes32); |
| p_uuid_data += Uuid::kNumBytes32; |
| if (uuid16) BTM_AddEirService(p_results->eir_uuid, uuid16); |
| } |
| } |
| |
| p_uuid_data = btm_eir_get_uuid_list(p_eir, HCI_EXT_INQ_RESPONSE_LEN, |
| Uuid::kNumBytes128, &num_uuid, &type); |
| if (p_uuid_data) { |
| for (yy = 0; yy < num_uuid; yy++) { |
| uuid16 = btm_convert_uuid_to_uuid16(p_uuid_data, Uuid::kNumBytes128); |
| p_uuid_data += Uuid::kNumBytes128; |
| if (uuid16) BTM_AddEirService(p_results->eir_uuid, uuid16); |
| } |
| } |
| } |