1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
//
// Device.cs
//
// Author:
// Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2013-2017 Jean-Philippe Bruyère
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Runtime.InteropServices;
namespace Linux.Evdev
{
public enum GrabMode {
Grab = 3,
Ungrab = 4
}
#region Native structs
[StructLayout(LayoutKind.Sequential)]
public struct InputAbsInfo
{
public int Value;
public int Minimum;
public int Maximum;
public int Fuzz;
public int Flat;
public int Resolution;
}
[StructLayout(LayoutKind.Sequential)]
public struct InputId
{
public ushort BusType;
public ushort Vendor;
public ushort Product;
public ushort Version;
}
[StructLayout(LayoutKind.Sequential)]
unsafe public struct KeyMapEntry
{
public byte Flags;
public byte Length;
public ushort Index;
public uint Keycode;
fixed sbyte scancode[32];
public string ScanCode {
get {
fixed(sbyte* bytes = scancode) {
string test = new string (bytes);
return test;
}
}
}
public override string ToString ()
{
return string.Format ("Flags={0} Length={1} Index={2} KeyCode={3} Scancode={4}",
Flags, Length, Index, Keycode, ScanCode);
}
}
[StructLayout(LayoutKind.Sequential)]
public struct InputEvent
{
public TimeVal Time;
ushort type;
public ushort Code;
public int Value;
public EvType Type { get { return (EvType)type; } }
public string CodeName { get { return Marshal.PtrToStringAuto(Device.libevdev_event_code_get_name ((uint)type,(uint)Code)); } }
public override string ToString ()
{
return string.Format ("[Event: {0}:{1} Type={2} Code={3} Value={4} CodeName={5}]",
Time.Seconds, Time.MicroSeconds, Type, Code, Value, CodeName);
}
}
[StructLayout(LayoutKind.Sequential)]
public struct TimeVal
{
public IntPtr Seconds;
public IntPtr MicroSeconds;
}
#endregion
public class Device : IDisposable
{
public const int SUCCESS = 0;
public const int SYNC = 1;
const string libevdev = "libevdev";
#region pinvoke
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_new_from_fd (int fd, out IntPtr handle);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern void libevdev_free (IntPtr dev);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern IntPtr libevdev_get_name (IntPtr dev);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_get_id_bustype (IntPtr dev);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_get_id_product (IntPtr dev);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_get_id_vendor (IntPtr dev);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_get_id_version (IntPtr dev);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern IntPtr libevdev_get_phys (IntPtr dev);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern IntPtr libevdev_get_uniq (IntPtr dev);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern IntPtr libevdev_event_type_get_name (uint type);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern IntPtr libevdev_event_code_get_name (uint type, uint code);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_get_repeat (IntPtr dev, out int delay, out int period);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_has_event_type (IntPtr dev, EvType type);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_has_event_code (IntPtr dev, EvType type, uint code);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_has_property (IntPtr dev, PropertyType prop);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_grab (IntPtr dev, GrabMode mode);
[DllImport(libevdev, CallingConvention = CallingConvention.Cdecl)]
internal static extern int libevdev_next_event (IntPtr dev, ReadFlag flags, out InputEvent evt);
#endregion
int fd = -1;
IntPtr handle = IntPtr.Zero;
public Device (string devPath)
{
fd = Libc.open(devPath, OpenFlags.ReadOnly | OpenFlags.NonBlock);
if (fd < 0)
throw new Exception (string.Format ("EVDEV: faile to open {0}", devPath));
int ret = libevdev_new_from_fd (fd, out handle);
if (ret < 0)
throw new Exception (string.Format ("EVDEV: ibevdev_new_from_fd failed on {0}: {1}", devPath, ret));
}
public Device (int num) : this ("/dev/input/event" + num)
{
}
public string Name { get { return Marshal.PtrToStringAuto(libevdev_get_name (handle)); }}
public string PhysLocation { get { return Marshal.PtrToStringAuto(libevdev_get_phys (handle)); }}
public string UniqueId { get { return Marshal.PtrToStringAuto (libevdev_get_uniq (handle)); }}
public int BusTypeId { get { return libevdev_get_id_bustype (handle); }}
public int ProductId { get { return libevdev_get_id_product (handle); }}
public int VendorId { get { return libevdev_get_id_vendor (handle); }}
public int VersionId { get { return libevdev_get_id_version (handle); }}
public bool HasEventOfType (EvType evType) => libevdev_has_event_type (handle, evType) > 0;
public bool HasEventCodeOfType (EvType evType, uint evCode) => libevdev_has_event_code (handle, evType, evCode) > 0;
public bool HasEventOfType (PropertyType propType) => libevdev_has_property (handle, propType) > 0;
public bool GetNextEvent (out InputEvent evt){
return libevdev_next_event (handle, ReadFlag.Normal, out evt) == 0;
}
public bool TryGrab (){
return libevdev_grab (handle, GrabMode.Grab) == 0;
}
public bool TryRelease (){
return libevdev_grab (handle, GrabMode.Ungrab) == 0;
}
const uint EVIOCGKEYCODE = 0x80084504;
const uint EVIOCGKEYCODE_V2 = 0x80284504;
public void test(){
int[] codes = new int[2];
for (int i=0; i<130; i++) {
codes[0] = i;
int ret = Libc.ioctl (fd, EVIOCGKEYCODE, codes);
if(ret!=0) {
Console.WriteLine ("evdev ioctl error: " + ret);
}else
Console.WriteLine ("[0]= {0}, [1] = {1}\n", codes[0], codes[1]);
}
}
public void test2(){
KeyMapEntry kme = default(KeyMapEntry);
for (int i=0; i<130; i++) {
kme.Flags = 1;
kme.Index = (ushort)i;
kme.Length = sizeof(uint);
int ret = Libc.ioctl (fd, EVIOCGKEYCODE_V2, ref kme);
if(ret!=0) {
Console.WriteLine ("evdev ioctl error: " + ret);
}else
Console.WriteLine (kme.ToString());
}
}
// public KeyMapEntry GetKeyMapEntry (KeyType k){
// KeyMapEntry kme;
// return kme;
// }
#region IDisposable implementation
~Device(){
Dispose (false);
}
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
protected virtual void Dispose (bool disposing){
if (handle != IntPtr.Zero)
libevdev_free (handle);
handle = IntPtr.Zero;
if (fd > 0)
Libc.close(fd);
fd = -1;
}
#endregion
}
}
|
