-
Notifications
You must be signed in to change notification settings - Fork 14
/
Keyboard.cpp
360 lines (322 loc) · 9.57 KB
/
Keyboard.cpp
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
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
#define ADD_ALTGR
/*
Keyboard.cpp
Copyright (c) 2015, Arduino LLC
Original code (pre-library): Copyright (c) 2011, Peter Barrett
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "Keyboard.h"
#if defined(_USING_HID)
//================================================================================
//================================================================================
// Keyboard
static const uint8_t _hidReportDescriptor[] PROGMEM = {
// Keyboard
0x05, 0x01, // USAGE_PAGE (Generic Desktop) // 47
0x09, 0x06, // USAGE (Keyboard)
0xa1, 0x01, // COLLECTION (Application)
0x85, 0x02, // REPORT_ID (2)
0x05, 0x07, // USAGE_PAGE (Keyboard)
0x19, 0xe0, // USAGE_MINIMUM (Keyboard LeftControl)
0x29, 0xe7, // USAGE_MAXIMUM (Keyboard Right GUI)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x08, // REPORT_COUNT (8)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x08, // REPORT_SIZE (8)
0x81, 0x03, // INPUT (Cnst,Var,Abs)
0x95, 0x06, // REPORT_COUNT (6)
0x75, 0x08, // REPORT_SIZE (8)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x65, // LOGICAL_MAXIMUM (101)
0x05, 0x07, // USAGE_PAGE (Keyboard)
0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))
0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)
0x81, 0x00, // INPUT (Data,Ary,Abs)
0xc0, // END_COLLECTION
};
Keyboard_::Keyboard_(void)
{
static HIDSubDescriptor node(_hidReportDescriptor, sizeof(_hidReportDescriptor));
HID().AppendDescriptor(&node);
}
void Keyboard_::begin(void)
{
}
void Keyboard_::end(void)
{
}
void Keyboard_::sendReport(KeyReport* keys)
{
HID().SendReport(2,keys,sizeof(KeyReport));
}
extern
const uint8_t _asciimap[128] PROGMEM;
/*[Language Files are provided by LocaleKeyboard.js (Licensed under MIT) - for more information visit: https://github.com/Nurrl/LocaleKeyboard.js]*/
/*
* _asciimap took from Keyboard.cpp,
* Updated by Borja Garduño with the correct keys,
* and ~, ^ and `, fixed by BlueArduino20.
*/
#define SHIFT 0x80
const uint8_t _asciimap[128] =
{
0x00, // NUL
0x00, // SOH
0x00, // STX
0x00, // ETX
0x00, // EOT
0x00, // ENQ
0x00, // ACK
0x00, // BEL
0x2a, // BS Backspace
0x2b, // TAB Tab
0x28, // LF Enter
0x00, // VT
0x00, // FF
0x00, // CR
0x00, // SO
0x00, // SI
0x00, // DEL
0x00, // DC1
0x00, // DC2
0x00, // DC3
0x00, // DC4
0x00, // NAK
0x00, // SYN
0x00, // ETB
0x00, // CAN
0x00, // EM
0x00, // SUB
0x00, // ESC
0x00, // FS
0x00, // GS
0x00, // RS
0x00, // US
0x2c, // ' '
0x1e|SHIFT, // !
0x1f|SHIFT, // "
0x20, // #
0x21|SHIFT, // $
0x22|SHIFT, // %
0x23|SHIFT, // &
0x2d, // '
0x25|SHIFT, // (
0x26|SHIFT, // )
0x30|SHIFT, // *
0x30, // +
0x36, // ,
0x38, // -
0x37, // .
0x24|SHIFT, // /
0x27, // 0
0x1e, // 1
0x1f, // 2
0x20, // 3
0x21, // 4
0x22, // 5
0x23, // 6
0x24, // 7
0x25, // 8
0x26, // 9
0x37|SHIFT, // :
0x36|SHIFT, // ;
0x64, // <
0x27|SHIFT, // =
0x64|SHIFT, // >
0x2d|SHIFT, // ?
0x1f, // @
0x04|SHIFT, // A
0x05|SHIFT, // B
0x06|SHIFT, // C
0x07|SHIFT, // D
0x08|SHIFT, // E
0x09|SHIFT, // F
0x0a|SHIFT, // G
0x0b|SHIFT, // H
0x0c|SHIFT, // I
0x0d|SHIFT, // J
0x0e|SHIFT, // K
0x0f|SHIFT, // L
0x10|SHIFT, // M
0x11|SHIFT, // N
0x12|SHIFT, // O
0x13|SHIFT, // P
0x14|SHIFT, // Q
0x15|SHIFT, // R
0x16|SHIFT, // S
0x17|SHIFT, // T
0x18|SHIFT, // U
0x19|SHIFT, // V
0x1a|SHIFT, // W
0x1b|SHIFT, // X
0x1c|SHIFT, // Y
0x1d|SHIFT, // Z
0x2f, // [
0x35, // bslash
0x30, // ]
0x2f|SHIFT, // ^
0x38|SHIFT, // _
0x2f, // `
0x04, // a
0x05, // b
0x06, // c
0x07, // d
0x08, // e
0x09, // f
0x0a, // g
0x0b, // h
0x0c, // i
0x0d, // j
0x0e, // k
0x0f, // l
0x10, // m
0x11, // n
0x12, // o
0x13, // p
0x14, // q
0x15, // r
0x16, // s
0x17, // t
0x18, // u
0x19, // v
0x1a, // w
0x1b, // x
0x1c, // y
0x1d, // z
0x34, // {
0x1e, // |
0x32, // }
0x21, // ^
0 // DEL
};
// Init var
bool _altGrMap[128];
bool _altFine = false;
// Individually define all needed char
void initAltGr() {
_altFine = true;
_altGrMap[126] = true; // ~
_altGrMap[123] = true; // {
_altGrMap[91] = true; // [
_altGrMap[93] = true; // ]
_altGrMap[125] = true; // }
_altGrMap[92] = true; // bslash
_altGrMap[124] = true; // |
_altGrMap[64] = true; // @
_altGrMap[35] = true; // #
}
uint8_t USBPutChar(uint8_t c);
// press() adds the specified key (printing, non-printing, or modifier)
// to the persistent key report and sends the report. Because of the way
// USB HID works, the host acts like the key remains pressed until we
// call release(), releaseAll(), or otherwise clear the report and resend.
size_t Keyboard_::press(uint8_t k)
{
uint8_t i;
if (k >= 136) { // it's a non-printing key (not a modifier)
k = k - 136;
} else if (k >= 128) { // it's a modifier key
_keyReport.modifiers |= (1<<(k-128));
k = 0;
} else { // it's a printing key
int oldKey = k;
k = pgm_read_byte(_asciimap + k);
if (!k) {
setWriteError();
return 0;
}
#ifdef ADD_ALTGR
if (!_altFine) initAltGr();
if (_altGrMap[oldKey]){
_keyReport.modifiers |= 0x40;
} else {
_keyReport.modifiers = 0;
}
#endif
if (k & 0x80) { // it's a capital letter or other character reached with shift
_keyReport.modifiers |= 0x02; // the left shift modifier
k &= 0x7F;
}
}
// Add k to the key report only if it's not already present
// and if there is an empty slot.
if (_keyReport.keys[0] != k && _keyReport.keys[1] != k &&
_keyReport.keys[2] != k && _keyReport.keys[3] != k &&
_keyReport.keys[4] != k && _keyReport.keys[5] != k) {
for (i=0; i<6; i++) {
if (_keyReport.keys[i] == 0x00) {
_keyReport.keys[i] = k;
break;
}
}
if (i == 6) {
setWriteError();
return 0;
}
}
sendReport(&_keyReport);
return 1;
}
// release() takes the specified key out of the persistent key report and
// sends the report. This tells the OS the key is no longer pressed and that
// it shouldn't be repeated any more.
size_t Keyboard_::release(uint8_t k)
{
uint8_t i;
if (k >= 136) { // it's a non-printing key (not a modifier)
k = k - 136;
} else if (k >= 128) { // it's a modifier key
_keyReport.modifiers &= ~(1<<(k-128));
k = 0;
} else { // it's a printing key
k = pgm_read_byte(_asciimap + k);
if (!k) {
return 0;
}
if (k & 0x80) { // it's a capital letter or other character reached with shift
_keyReport.modifiers &= ~(0x02); // the left shift modifier
k &= 0x7F;
}
}
// Test the key report to see if k is present. Clear it if it exists.
// Check all positions in case the key is present more than once (which it shouldn't be)
for (i=0; i<6; i++) {
if (0 != k && _keyReport.keys[i] == k) {
_keyReport.keys[i] = 0x00;
}
}
sendReport(&_keyReport);
return 1;
}
void Keyboard_::releaseAll(void)
{
_keyReport.keys[0] = 0;
_keyReport.keys[1] = 0;
_keyReport.keys[2] = 0;
_keyReport.keys[3] = 0;
_keyReport.keys[4] = 0;
_keyReport.keys[5] = 0;
_keyReport.modifiers = 0;
sendReport(&_keyReport);
}
size_t Keyboard_::write(uint8_t c)
{
uint8_t p = press(c); // Keydown
release(c); // Keyup
return p; // just return the result of press() since release() almost always returns 1
}
Keyboard_ Keyboard;
#endif