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
|
/****************************************************************************
* arch/x86/src/qemu_keypad.c
*
* Copyright (C) 2013 Li Zhuoyi. All rights reserved.
* Author: Li Zhuoyi <lzyy.cn@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/arch.h>
#include <nuttx/irq.h>
#include <nuttx/fs/fs.h>
#include <stdint.h>
#include <semaphore.h>
#include <errno.h>
#include <unistd.h>
#include <sched.h>
#include <arch/io.h>
/****************************************************************************
* Private Types
****************************************************************************/
typedef enum
{
/* The keyboard syms have been cleverly chosen to map to ASCII */
KEY_UNKNOWN = 0,
KEY_NOKEY = 0,
KEY_FIRST = 0,
KEY_BACKSPACE = 8,
KEY_TAB = 9,
KEY_CLEAR = 12,
KEY_RETURN = 13,
KEY_PAUSE = 19,
KEY_ESCAPE = 27,
KEY_SPACE = 32,
KEY_EXCLAIM = 33,
KEY_QUOTEDBL = 34,
KEY_HASH = 35,
KEY_DOLLAR = 36,
KEY_AMPERSAND = 38,
KEY_QUOTE = 39,
KEY_LEFTPAREN = 40,
KEY_RIGHTPAREN = 41,
KEY_ASTERISK = 42,
KEY_PLUS = 43,
KEY_COMMA = 44,
KEY_MINUS = 45,
KEY_PERIOD = 46,
KEY_SLASH = 47,
KEY_0 = 48,
KEY_1 = 49,
KEY_2 = 50,
KEY_3 = 51,
KEY_4 = 52,
KEY_5 = 53,
KEY_6 = 54,
KEY_7 = 55,
KEY_8 = 56,
KEY_9 = 57,
KEY_COLON = 58,
KEY_SEMICOLON = 59,
KEY_LESS = 60,
KEY_EQUALS = 61,
KEY_GREATER = 62,
KEY_QUESTION = 63,
KEY_AT = 64,
KEY_LEFTBRACKET = 91,
KEY_BACKSLASH = 92,
KEY_RIGHTBRACKET = 93,
KEY_CARET = 94,
KEY_UNDERSCORE = 95,
KEY_BACKQUOTE = 96,
KEY_a = 97,
KEY_b = 98,
KEY_c = 99,
KEY_d = 100,
KEY_e = 101,
KEY_f = 102,
KEY_g = 103,
KEY_h = 104,
KEY_i = 105,
KEY_j = 106,
KEY_k = 107,
KEY_l = 108,
KEY_m = 109,
KEY_n = 110,
KEY_o = 111,
KEY_p = 112,
KEY_q = 113,
KEY_r = 114,
KEY_s = 115,
KEY_t = 116,
KEY_u = 117,
KEY_v = 118,
KEY_w = 119,
KEY_x = 120,
KEY_y = 121,
KEY_z = 122,
KEY_DELETE = 127,
KEY_DEBUG = 138, /* 0x80+0x0a */
/* Arrows + Home/End pad */
KEY_S100 = 173,
KEY_UP = 173,
KEY_DOWN = 174,
KEY_RIGHT = 175,
KEY_LEFT = 176,
KEY_INSERT = 177,
KEY_HOME = 178,
KEY_END = 179,
KEY_PAGEUP = 180,
KEY_PAGEDOWN = 181,
/* Function keys */
KEY_F1 = 182,
KEY_F2 = 183,
KEY_F3 = 184,
KEY_F4 = 185,
KEY_F5 = 186,
KEY_F6 = 187,
KEY_F7 = 188,
KEY_F8 = 189,
KEY_F9 = 190,
KEY_F10 = 191,
KEY_F11 = 192,
KEY_F12 = 193,
KEY_F13 = 194,
KEY_F14 = 195,
KEY_F15 = 196,
/* Key state modifier keys */
KEY_NUMLOCK = 200,
KEY_CAPSLOCK = 201,
KEY_SCROLLOCK = 202,
KEY_RSHIFT = 203,
KEY_LSHIFT = 204,
KEY_RCTRL = 205,
KEY_LCTRL = 206,
KEY_RALT = 207,
KEY_LALT = 208,
KEY_RMETA = 209,
KEY_LMETA = 210,
KEY_LSUPER = 211, /* Left "Windows" key */
KEY_RSUPER = 212, /* Right "Windows" key */
KEY_MODE = 213, /* "Alt Gr" key */
KEY_COMPOSE = 214, /* Multi-key compose key */
/* Miscellaneous function keys */
KEY_HELP = 215,
KEY_PRINT = 216,
KEY_SYSREQ = 217,
KEY_BREAK = 218,
KEY_QUIT = 250,
/* Add any other keys here */
KEY_LAST
} MDKKey;
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static int keypad_open(struct file *filep);
static int keypad_close(struct file *filep);
static ssize_t keypad_read(struct file *filep, FAR char *buf, size_t buflen);
/****************************************************************************
* Private Data
****************************************************************************/
static const unsigned char g_kdbus[128] =
{
0, KEY_QUIT, '1', '2', '3', '4', '5', '6', '7', '8', /* 9 */
'9', '0', '-', '=', '\b', /* Backspace */
'\t', /* Tab */
'q', 'w', 'e', 'r', /* 19 */
't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', /* Enter key */
0, /* 29 - Control */
'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* 39 */
'\'', '`', 0, /* Left shift */
'\\', 'z', 'x', 'c', 'v', 'b', 'n', /* 49 */
'm', ',', '.', '/', 0, /* Right shift */
'*',
0, /* Alt */
' ', /* Space bar */
0, /* Caps lock */
KEY_F1, /* 59 - F1 key ... > */
KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, KEY_F9,
KEY_F10, /* < ... F10 */
0, /* 69 - Num lock*/
0, /* Scroll Lock */
KEY_HOME, /* Home key */
KEY_UP, /* Up Arrow */
KEY_PAGEUP, /* Page Up */
'-',
KEY_LEFT, /* Left Arrow */
0,
KEY_RIGHT, /* Right Arrow */
'+',
KEY_END, /* 79 - End key*/
KEY_DOWN, /* Down Arrow */
KEY_PAGEDOWN, /* Page Down */
KEY_INSERT, /* Insert Key */
KEY_DELETE, /* Delete Key */
0, 0, 0,
0, /* F11 Key */
0, /* F12 Key */
0, /* All other keys are undefined */
};
static const struct file_operations g_keypadops =
{
keypad_open, /* open */
keypad_close, /* close */
keypad_read, /* read */
0, /* write */
0, /* seek */
0, /* ioctl */
};
/****************************************************************************
* Private Functions
****************************************************************************/
static int keypad_open(struct file *filep)
{
return OK;
}
static int keypad_close(struct file *filep)
{
return OK;
}
static ssize_t keypad_read(struct file *filep, FAR char *buf, size_t buflen)
{
uint_fast8_t keycode = 0;
uint_fast8_t scancode = 0;
uint_fast8_t keyflags;
if (buf == NULL || buflen < 1)
{
/* Well... nothing to do */
return -EINVAL;
}
keyflags = inb(0x64);
if (keyflags & 0x01)
{
scancode = inb(0x60);
if ((scancode & 0x80) == 0)
{
keycode = g_kdbus[scancode];
//printf("%02x ",scancode);
buf[0] = keycode;
return 1;
}
}
return 0;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: qemu_keypad
*
* Description:
* Registers the QEMU keypad driver
*
****************************************************************************/
void qemu_keypad(void)
{
(void)register_driver("/dev/keypad", &g_keypadops, 0444, NULL);
}
|
