1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef USB_DDK_HASH_H 16 #define USB_DDK_HASH_H 17 #include <stddef.h> 18 #include <stdint.h> 19 struct InterfaceInfo { 20 uint64_t addr; 21 uint8_t busNum; 22 uint8_t devNum; 23 }; 24 25 int32_t UsbDdkHash(const InterfaceInfo &info, uint64_t &hashVal); 26 int32_t UsbDdkUnHash(uint64_t hashVal, uint64_t &addr); 27 void UsbDdkDelHashRecord(uint64_t hashVal); 28 uint64_t UsbDdkGetRecordByVal(const InterfaceInfo &info); 29 #endif // USB_DDK_IMPL_H 30