1 /*
2  * Copyright Samsung Electronics Co.,LTD.
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 #ifndef __HARDWARE_EXYNOS_ACRYLIC_DEVICE_H__
19 #define __HARDWARE_EXYNOS_ACRYLIC_DEVICE_H__
20 
21 #include <string>
22 
23 class AcrylicDevice {
24 public:
25     AcrylicDevice(const char *path);
26     virtual ~AcrylicDevice();
27     int ioctl(int cmd, void *arg);
28 private:
29     bool open();
30 
31     std::string mDevPath;
32     int mDevFD;
33 };
34 
35 #define MAX_DEVICE_FD 3
36 class AcrylicRedundantDevice {
37 public:
38     AcrylicRedundantDevice(const char *path);
39     ~AcrylicRedundantDevice();
40     int ioctl_unique(int cmd, void *arg);
41     int ioctl_current(int cmd, void *arg);
42     int ioctl_broadcast(int cmd, void *arg);
ioctl_single(int cmd,void * arg)43     int ioctl_single(int cmd, void *arg) {
44         int ret = ioctl_current(cmd, arg);
45 
46         mFdIdx++;
47         mFdIdx = mFdIdx % MAX_DEVICE_FD;
48         return ret;
49 
50     }
51 private:
52     bool open();
53 
54     std:: string mDevPath;
55     int mDevFd[MAX_DEVICE_FD];
56     int mFdIdx;
57 };
58 
59 #endif //__HARDWARE_EXYNOS_ACRYLIC_DEVICE_H__
60