1 /* 2 * Copyright (c) 2021-2022 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 16 #ifndef VIRTUAL_DEVICE_H 17 #define VIRTUAL_DEVICE_H 18 19 #include <cstdint> 20 #include <functional> 21 #include <iostream> 22 #include <vector> 23 24 #include "linux/input.h" 25 #include "linux/uinput.h" 26 27 class VirtualDevice { 28 public: 29 VirtualDevice(const char *deviceName, uint16_t productId); 30 virtual ~VirtualDevice(); 31 bool EmitEvent(uint16_t type, uint16_t code, uint32_t value) const; 32 bool SetUp(); 33 34 protected: 35 virtual const std::vector<uint32_t>& GetEventTypes() const; 36 virtual const std::vector<uint32_t>& GetKeys() const; 37 virtual const std::vector<uint32_t>& GetProperties() const; 38 virtual const std::vector<uint32_t>& GetAbs() const; 39 virtual const std::vector<uint32_t>& GetRelBits() const; 40 int32_t fd_ = -1; 41 const char * const deviceName_; 42 const uint16_t busType_; 43 const uint16_t vendorId_; 44 const uint16_t productId_; 45 const uint16_t version_; 46 uinput_user_dev dev_ {}; 47 static constexpr uint32_t MAX_NAME_LENGTH = 80; 48 }; 49 #endif // VIRTUAL_DEVICE_H