1 /*
2 * Copyright (c) 2021-2024 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 #include "virtual_touch_screen.h"
17
18 #include "linux/input-event-codes.h"
19 #include "linux/uinput.h"
20
21 namespace OHOS {
22 namespace MMI {
23 namespace {
24 constexpr int32_t ABS_MAX_PRESSURE = 100;
25 constexpr int32_t ABS_MT_MIN_ORIENTATION = -90;
26 constexpr int32_t ABS_MT_MAX_ORIENTATION = 90;
27 constexpr int32_t ABS_MT_BLOB_MAX_ID = 10;
28 constexpr int32_t ABS_MT_TRACKING_MAX_ID = 9;
29 constexpr int32_t ABS_MT_MAX_PRESSURE = 100;
30 } // namespace
31
GetEventTypes() const32 const std::vector<uint32_t> &VirtualTouchScreen::GetEventTypes() const
33 {
34 static const std::vector<uint32_t> evtTypes {EV_ABS, EV_KEY, EV_SYN};
35 return evtTypes;
36 }
37
GetKeys() const38 const std::vector<uint32_t> &VirtualTouchScreen::GetKeys() const
39 {
40 static const std::vector<uint32_t> keys {BTN_TOUCH};
41 return keys;
42 }
43
GetProperties() const44 const std::vector<uint32_t> &VirtualTouchScreen::GetProperties() const
45 {
46 static const std::vector<uint32_t> properties {INPUT_PROP_DIRECT};
47 return properties;
48 }
49
GetAbs() const50 const std::vector<uint32_t> &VirtualTouchScreen::GetAbs() const
51 {
52 static const std::vector<uint32_t> abs {
53 ABS_X,
54 ABS_Y,
55 ABS_PRESSURE,
56 ABS_MT_TOUCH_MAJOR,
57 ABS_MT_TOUCH_MINOR,
58 ABS_MT_ORIENTATION,
59 ABS_MT_POSITION_X,
60 ABS_MT_POSITION_Y,
61 ABS_MT_BLOB_ID,
62 ABS_MT_TRACKING_ID,
63 ABS_MT_PRESSURE
64 };
65 return abs;
66 }
67
VirtualTouchScreen(const uint32_t maxX,const uint32_t maxY)68 VirtualTouchScreen::VirtualTouchScreen(const uint32_t maxX, const uint32_t maxY)
69 : VirtualDevice("VSoC touchscreen", 0x6006)
70 {
71 dev_.absmin[ABS_X] = 0;
72 dev_.absmax[ABS_X] = maxX;
73 dev_.absmin[ABS_Y] = 0;
74 dev_.absmax[ABS_Y] = maxY;
75
76 dev_.absmin[ABS_PRESSURE] = 0;
77 dev_.absmax[ABS_PRESSURE] = ABS_MAX_PRESSURE;
78
79 dev_.absmin[ABS_MT_TOUCH_MAJOR] = 0;
80 dev_.absmax[ABS_MT_TOUCH_MAJOR] = 1;
81 dev_.absmin[ABS_MT_TOUCH_MINOR] = 0;
82 dev_.absmax[ABS_MT_TOUCH_MINOR] = 1;
83
84 dev_.absmin[ABS_MT_ORIENTATION] = ABS_MT_MIN_ORIENTATION;
85 dev_.absmax[ABS_MT_ORIENTATION] = ABS_MT_MAX_ORIENTATION;
86
87 dev_.absmin[ABS_MT_POSITION_X] = 0;
88 dev_.absmax[ABS_MT_POSITION_X] = maxX;
89 dev_.absmin[ABS_MT_POSITION_Y] = 0;
90 dev_.absmax[ABS_MT_POSITION_Y] = maxY;
91
92 dev_.absmin[ABS_MT_BLOB_ID] = 0;
93 dev_.absmax[ABS_MT_BLOB_ID] = ABS_MT_BLOB_MAX_ID;
94 dev_.absmin[ABS_MT_TRACKING_ID] = 0;
95 dev_.absmax[ABS_MT_TRACKING_ID] = ABS_MT_TRACKING_MAX_ID;
96 dev_.absmin[ABS_MT_PRESSURE] = 0;
97 dev_.absmax[ABS_MT_PRESSURE] = ABS_MT_MAX_PRESSURE;
98 }
99 } // namespace MMI
100 } // namespace OHOS
101