1 #pragma once
2 /*
3  * Copyright (C) 2017 The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #include <linux/input.h>
19 #include <linux/uinput.h>
20 #include <stdint.h>
21 
22 #include <functional>
23 #include <vector>
24 
25 namespace cuttlefish_input_service {
26 
27 class VirtualDeviceBase {
28  public:
29   VirtualDeviceBase(const char* device_name, uint16_t product_id);
30   virtual ~VirtualDeviceBase();
31 
32   bool SetUp();
33   bool EmitEvent(uint16_t type, uint16_t code, uint32_t value);
34 
35  protected:
36   virtual const std::vector<const uint32_t>& GetEventTypes() const;
37   virtual const std::vector<const uint32_t>& GetKeys() const;
38   virtual const std::vector<const uint32_t>& GetProperties() const;
39   virtual const std::vector<const uint32_t>& GetAbs() const;
40 
41   const char* const device_name_;
42   const uint16_t bus_type_;
43   const uint16_t vendor_id_;
44   const uint16_t product_id_;
45   const uint16_t version_;
46 
47   struct uinput_user_dev dev_ {};
48   int fd_ = -1;
49 };
50 
51 }  // namespace cuttlefish_input_service
52