60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
/*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "chre/util/nanoapp/ble.h"
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namespace chre {
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using ble_constants::kGoogleEddystoneUuid;
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using ble_constants::kGoogleNearbyFastpairUuid;
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using ble_constants::kGoogleUuidMask;
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using ble_constants::kNumScanFilters;
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using ble_constants::kRssiThreshold;
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chreBleGenericFilter createBleGenericFilter(uint8_t type, uint8_t len,
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const uint8_t *data,
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const uint8_t *mask) {
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chreBleGenericFilter filter;
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memset(&filter, 0, sizeof(filter));
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filter.type = type;
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filter.len = len;
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memcpy(filter.data, data, sizeof(uint8_t) * len);
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memcpy(filter.dataMask, mask, sizeof(uint8_t) * len);
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return filter;
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}
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bool createBleScanFilterForKnownBeacons(struct chreBleScanFilter &filter,
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chreBleGenericFilter *genericFilters,
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uint8_t numGenericFilters) {
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if (numGenericFilters < kNumScanFilters) {
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return false;
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}
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genericFilters[0] = createBleGenericFilter(
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CHRE_BLE_AD_TYPE_SERVICE_DATA_WITH_UUID_16_LE, kNumScanFilters,
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kGoogleEddystoneUuid, kGoogleUuidMask);
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genericFilters[1] = createBleGenericFilter(
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CHRE_BLE_AD_TYPE_SERVICE_DATA_WITH_UUID_16_LE, kNumScanFilters,
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kGoogleNearbyFastpairUuid, kGoogleUuidMask);
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filter.rssiThreshold = kRssiThreshold;
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filter.scanFilterCount = kNumScanFilters;
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filter.scanFilters = genericFilters;
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return true;
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}
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} // namespace chre
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