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1 jermar 1
/*
2
 * Copyright (C) 2001-2004 Jakub Jermar
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1754 jermar 29
/** @addtogroup genarch	
1702 cejka 30
 * @{
31
 */
1754 jermar 32
/**
1757 jermar 33
 * @file
1754 jermar 34
 * @brief	i8042 processor driver.
35
 *
36
 * It takes care of low-level keyboard functions.
1702 cejka 37
 */
38
 
894 jermar 39
#include <genarch/i8042/i8042.h>
40
#include <arch/drivers/i8042.h>
1 jermar 41
#include <arch/interrupt.h>
42
#include <cpu.h>
43
#include <arch/asm.h>
44
#include <arch.h>
508 jermar 45
#include <synch/spinlock.h>
46
#include <typedefs.h>
511 jermar 47
#include <console/chardev.h>
48
#include <console/console.h>
517 jermar 49
#include <macros.h>
576 palkovsky 50
#include <interrupt.h>
1 jermar 51
 
1754 jermar 52
/* Keyboard commands. */
512 jermar 53
#define KBD_ENABLE	0xf4
54
#define KBD_DISABLE	0xf5
55
#define KBD_ACK		0xfa
56
 
670 vana 57
/*
893 jermar 58
 * 60  Write 8042 Command Byte: next data byte written to port 60h is
895 jermar 59
 *     placed in 8042 command register. Format:
893 jermar 60
 *
61
 *    |7|6|5|4|3|2|1|0|8042 Command Byte
62
 *     | | | | | | | `---- 1=enable output register full interrupt
63
 *     | | | | | | `----- should be 0
64
 *     | | | | | `------ 1=set status register system, 0=clear
65
 *     | | | | `------- 1=override keyboard inhibit, 0=allow inhibit
66
 *     | | | `-------- disable keyboard I/O by driving clock line low
67
 *     | | `--------- disable auxiliary device, drives clock line low
68
 *     | `---------- IBM scancode translation 0=AT, 1=PC/XT
69
 *     `----------- reserved, should be 0
70
 */
670 vana 71
 
893 jermar 72
#define i8042_SET_COMMAND 	0x60
73
#define i8042_COMMAND 		0x49
894 jermar 74
 
75
#define i8042_BUFFER_FULL_MASK	0x01
893 jermar 76
#define i8042_WAIT_MASK 	0x02
670 vana 77
 
508 jermar 78
#define SPECIAL		'?'
79
#define KEY_RELEASE	0x80
80
 
895 jermar 81
/**
82
 * These codes read from i8042 data register are silently ignored.
83
 */
84
#define IGNORE_CODE	0x7f
85
 
508 jermar 86
static void key_released(__u8 sc);
87
static void key_pressed(__u8 sc);
878 vana 88
static char key_read(chardev_t *d);
508 jermar 89
 
90
#define PRESSED_SHIFT		(1<<0)
91
#define PRESSED_CAPSLOCK	(1<<1)
92
#define LOCKED_CAPSLOCK		(1<<0)
93
 
894 jermar 94
#define ACTIVE_READ_BUFF_SIZE 16 	/* Must be power of 2 */
878 vana 95
 
894 jermar 96
static __u8 active_read_buff[ACTIVE_READ_BUFF_SIZE];
878 vana 97
 
623 jermar 98
SPINLOCK_INITIALIZE(keylock);		/**< keylock protects keyflags and lockflags. */
508 jermar 99
static volatile int keyflags;		/**< Tracking of multiple keypresses. */
509 jermar 100
static volatile int lockflags;		/**< Tracking of multiple keys lockings. */
508 jermar 101
 
575 palkovsky 102
static void i8042_suspend(chardev_t *);
103
static void i8042_resume(chardev_t *);
511 jermar 104
 
105
static chardev_t kbrd;
106
static chardev_operations_t ops = {
107
	.suspend = i8042_suspend,
878 vana 108
	.resume = i8042_resume,
109
	.read = key_read
511 jermar 110
};
111
 
508 jermar 112
/** Primary meaning of scancodes. */
113
static char sc_primary_map[] = {
114
	SPECIAL, /* 0x00 */
115
	SPECIAL, /* 0x01 - Esc */
116
	'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',
588 palkovsky 117
	'\b', /* 0x0e - Backspace */
508 jermar 118
	'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
119
	SPECIAL, /* 0x1d - LCtrl */
120
	'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'',
121
	'`',
122
	SPECIAL, /* 0x2a - LShift */ 
123
	'\\',
124
	'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',
125
	SPECIAL, /* 0x36 - RShift */
126
	'*',
127
	SPECIAL, /* 0x38 - LAlt */
128
	' ',
129
	SPECIAL, /* 0x3a - CapsLock */
130
	SPECIAL, /* 0x3b - F1 */
131
	SPECIAL, /* 0x3c - F2 */
132
	SPECIAL, /* 0x3d - F3 */
133
	SPECIAL, /* 0x3e - F4 */
134
	SPECIAL, /* 0x3f - F5 */
135
	SPECIAL, /* 0x40 - F6 */
136
	SPECIAL, /* 0x41 - F7 */
137
	SPECIAL, /* 0x42 - F8 */
138
	SPECIAL, /* 0x43 - F9 */
139
	SPECIAL, /* 0x44 - F10 */
140
	SPECIAL, /* 0x45 - NumLock */
141
	SPECIAL, /* 0x46 - ScrollLock */
142
	'7', '8', '9', '-',
143
	'4', '5', '6', '+',
144
	'1', '2', '3',
145
	'0', '.',
146
	SPECIAL, /* 0x54 - Alt-SysRq */
147
	SPECIAL, /* 0x55 - F11/F12/PF1/FN */
148
	SPECIAL, /* 0x56 - unlabelled key next to LAlt */
149
	SPECIAL, /* 0x57 - F11 */
150
	SPECIAL, /* 0x58 - F12 */
151
	SPECIAL, /* 0x59 */
152
	SPECIAL, /* 0x5a */
153
	SPECIAL, /* 0x5b */
154
	SPECIAL, /* 0x5c */
155
	SPECIAL, /* 0x5d */
156
	SPECIAL, /* 0x5e */
157
	SPECIAL, /* 0x5f */
158
	SPECIAL, /* 0x60 */
159
	SPECIAL, /* 0x61 */
160
	SPECIAL, /* 0x62 */
161
	SPECIAL, /* 0x63 */
162
	SPECIAL, /* 0x64 */
163
	SPECIAL, /* 0x65 */
164
	SPECIAL, /* 0x66 */
165
	SPECIAL, /* 0x67 */
166
	SPECIAL, /* 0x68 */
167
	SPECIAL, /* 0x69 */
168
	SPECIAL, /* 0x6a */
169
	SPECIAL, /* 0x6b */
170
	SPECIAL, /* 0x6c */
171
	SPECIAL, /* 0x6d */
172
	SPECIAL, /* 0x6e */
173
	SPECIAL, /* 0x6f */
174
	SPECIAL, /* 0x70 */
175
	SPECIAL, /* 0x71 */
176
	SPECIAL, /* 0x72 */
177
	SPECIAL, /* 0x73 */
178
	SPECIAL, /* 0x74 */
179
	SPECIAL, /* 0x75 */
180
	SPECIAL, /* 0x76 */
181
	SPECIAL, /* 0x77 */
182
	SPECIAL, /* 0x78 */
183
	SPECIAL, /* 0x79 */
184
	SPECIAL, /* 0x7a */
185
	SPECIAL, /* 0x7b */
186
	SPECIAL, /* 0x7c */
187
	SPECIAL, /* 0x7d */
188
	SPECIAL, /* 0x7e */
189
	SPECIAL, /* 0x7f */
190
};
191
 
192
/** Secondary meaning of scancodes. */
193
static char sc_secondary_map[] = {
194
	SPECIAL, /* 0x00 */
195
	SPECIAL, /* 0x01 - Esc */
196
	'!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+',
197
	SPECIAL, /* 0x0e - Backspace */
198
	'\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n',
199
	SPECIAL, /* 0x1d - LCtrl */
200
	'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"',
201
	'~',
202
	SPECIAL, /* 0x2a - LShift */ 
203
	'|',
204
	'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?',
205
	SPECIAL, /* 0x36 - RShift */
206
	'*',
207
	SPECIAL, /* 0x38 - LAlt */
208
	' ',
209
	SPECIAL, /* 0x3a - CapsLock */
210
	SPECIAL, /* 0x3b - F1 */
211
	SPECIAL, /* 0x3c - F2 */
212
	SPECIAL, /* 0x3d - F3 */
213
	SPECIAL, /* 0x3e - F4 */
214
	SPECIAL, /* 0x3f - F5 */
215
	SPECIAL, /* 0x40 - F6 */
216
	SPECIAL, /* 0x41 - F7 */
217
	SPECIAL, /* 0x42 - F8 */
218
	SPECIAL, /* 0x43 - F9 */
219
	SPECIAL, /* 0x44 - F10 */
220
	SPECIAL, /* 0x45 - NumLock */
221
	SPECIAL, /* 0x46 - ScrollLock */
222
	'7', '8', '9', '-',
223
	'4', '5', '6', '+',
224
	'1', '2', '3',
225
	'0', '.',
226
	SPECIAL, /* 0x54 - Alt-SysRq */
227
	SPECIAL, /* 0x55 - F11/F12/PF1/FN */
228
	SPECIAL, /* 0x56 - unlabelled key next to LAlt */
229
	SPECIAL, /* 0x57 - F11 */
230
	SPECIAL, /* 0x58 - F12 */
231
	SPECIAL, /* 0x59 */
232
	SPECIAL, /* 0x5a */
233
	SPECIAL, /* 0x5b */
234
	SPECIAL, /* 0x5c */
235
	SPECIAL, /* 0x5d */
236
	SPECIAL, /* 0x5e */
237
	SPECIAL, /* 0x5f */
238
	SPECIAL, /* 0x60 */
239
	SPECIAL, /* 0x61 */
240
	SPECIAL, /* 0x62 */
241
	SPECIAL, /* 0x63 */
242
	SPECIAL, /* 0x64 */
243
	SPECIAL, /* 0x65 */
244
	SPECIAL, /* 0x66 */
245
	SPECIAL, /* 0x67 */
246
	SPECIAL, /* 0x68 */
247
	SPECIAL, /* 0x69 */
248
	SPECIAL, /* 0x6a */
249
	SPECIAL, /* 0x6b */
250
	SPECIAL, /* 0x6c */
251
	SPECIAL, /* 0x6d */
252
	SPECIAL, /* 0x6e */
253
	SPECIAL, /* 0x6f */
254
	SPECIAL, /* 0x70 */
255
	SPECIAL, /* 0x71 */
256
	SPECIAL, /* 0x72 */
257
	SPECIAL, /* 0x73 */
258
	SPECIAL, /* 0x74 */
259
	SPECIAL, /* 0x75 */
260
	SPECIAL, /* 0x76 */
261
	SPECIAL, /* 0x77 */
262
	SPECIAL, /* 0x78 */
263
	SPECIAL, /* 0x79 */
264
	SPECIAL, /* 0x7a */
265
	SPECIAL, /* 0x7b */
266
	SPECIAL, /* 0x7c */
267
	SPECIAL, /* 0x7d */
268
	SPECIAL, /* 0x7e */
269
	SPECIAL, /* 0x7f */	
270
};
271
 
958 jermar 272
static void i8042_interrupt(int n, istate_t *istate);
895 jermar 273
static void i8042_wait(void);
576 palkovsky 274
 
1474 palkovsky 275
static iroutine oldvector;
276
/** Initialize keyboard and service interrupts using kernel routine */
277
void i8042_grab(void)
1 jermar 278
{
1474 palkovsky 279
	oldvector = exc_register(VECTOR_KBD, "i8042_interrupt", (iroutine) i8042_interrupt);
895 jermar 280
	i8042_wait();
894 jermar 281
	i8042_command_write(i8042_SET_COMMAND);
895 jermar 282
	i8042_wait();
894 jermar 283
	i8042_data_write(i8042_COMMAND);
895 jermar 284
	i8042_wait();
1474 palkovsky 285
}
286
/** Resume the former interrupt vector */
287
void i8042_release(void)
288
{
289
	if (oldvector)
290
		exc_register(VECTOR_KBD, "user_interrupt", oldvector);
291
}
670 vana 292
 
1474 palkovsky 293
/** Initialize i8042. */
294
void i8042_init(void)
295
{
296
	int i;
297
 
298
	i8042_grab();
299
        /* Prevent user from accidentaly releasing calling i8042_resume
300
	 * and disabling keyboard 
301
	 */
302
	oldvector = NULL; 
303
 
512 jermar 304
	trap_virtual_enable_irqs(1<<IRQ_KBD);
575 palkovsky 305
	chardev_initialize("i8042_kbd", &kbrd, &ops);
511 jermar 306
	stdin = &kbrd;
1195 jermar 307
 
1194 vana 308
	/*
1195 jermar 309
	 * Clear input buffer.
310
	 * Number of iterations is limited to prevent infinite looping.
311
	 */
312
	for (i = 0; (i8042_status_read() & i8042_BUFFER_FULL_MASK) && i < 100; i++) {
1194 vana 313
		i8042_data_read();
1195 jermar 314
	}  
1 jermar 315
}
316
 
508 jermar 317
/** Process i8042 interrupt.
318
 *
319
 * @param n Interrupt vector.
1708 jermar 320
 * @param istate Interrupted state.
508 jermar 321
 */
958 jermar 322
void i8042_interrupt(int n, istate_t *istate)
1 jermar 323
{
324
	__u8 x;
325
 
1753 palkovsky 326
	while ((i8042_status_read() & i8042_BUFFER_FULL_MASK)) {
327
		x = i8042_data_read();
328
		if (x & KEY_RELEASE)
329
			key_released(x ^ KEY_RELEASE);
330
		else
331
			key_pressed(x);
332
	}
1 jermar 333
	trap_virtual_eoi();
334
}
508 jermar 335
 
895 jermar 336
/** Wait until the controller reads its data. */
337
void i8042_wait(void) {
338
	while (i8042_status_read() & i8042_WAIT_MASK) {
339
		/* wait */
340
	}
341
}
342
 
508 jermar 343
/** Process release of key.
344
 *
345
 * @param sc Scancode of the key being released.
346
 */
347
void key_released(__u8 sc)
348
{
349
	spinlock_lock(&keylock);
350
	switch (sc) {
351
	    case SC_LSHIFT:
352
	    case SC_RSHIFT:
353
		keyflags &= ~PRESSED_SHIFT;
354
		break;
355
	    case SC_CAPSLOCK:
356
		keyflags &= ~PRESSED_CAPSLOCK;
357
		if (lockflags & LOCKED_CAPSLOCK)
358
			lockflags &= ~LOCKED_CAPSLOCK;
359
		else
360
			lockflags |= LOCKED_CAPSLOCK;
361
		break;
362
	    default:
363
		break;
364
	}
365
	spinlock_unlock(&keylock);
366
}
367
 
368
/** Process keypress.
369
 *
370
 * @param sc Scancode of the key being pressed.
371
 */
372
void key_pressed(__u8 sc)
373
{
374
	char *map = sc_primary_map;
375
	char ascii = sc_primary_map[sc];
376
	bool shift, capslock;
377
	bool letter = false;
378
 
379
	spinlock_lock(&keylock);
380
	switch (sc) {
601 palkovsky 381
	case SC_LSHIFT:
382
	case SC_RSHIFT:
508 jermar 383
	    	keyflags |= PRESSED_SHIFT;
384
		break;
601 palkovsky 385
	case SC_CAPSLOCK:
508 jermar 386
		keyflags |= PRESSED_CAPSLOCK;
387
		break;
601 palkovsky 388
	case SC_SPEC_ESCAPE:
389
		break;
390
	case SC_LEFTARR:
391
		chardev_push_character(&kbrd, 0x1b);
392
		chardev_push_character(&kbrd, 0x5b);
393
		chardev_push_character(&kbrd, 0x44);
394
		break;
395
	case SC_RIGHTARR:
396
		chardev_push_character(&kbrd, 0x1b);
397
		chardev_push_character(&kbrd, 0x5b);
398
		chardev_push_character(&kbrd, 0x43);
399
		break;
400
	case SC_UPARR:
401
		chardev_push_character(&kbrd, 0x1b);
402
		chardev_push_character(&kbrd, 0x5b);
403
		chardev_push_character(&kbrd, 0x41);
404
		break;
405
	case SC_DOWNARR:
406
		chardev_push_character(&kbrd, 0x1b);
407
		chardev_push_character(&kbrd, 0x5b);
408
		chardev_push_character(&kbrd, 0x42);
409
		break;
606 palkovsky 410
	case SC_HOME:
411
		chardev_push_character(&kbrd, 0x1b);
412
		chardev_push_character(&kbrd, 0x4f);
413
		chardev_push_character(&kbrd, 0x48);
414
		break;
415
	case SC_END:
416
		chardev_push_character(&kbrd, 0x1b);
417
		chardev_push_character(&kbrd, 0x4f);
418
		chardev_push_character(&kbrd, 0x46);
419
		break;
420
	case SC_DELETE:
421
		chardev_push_character(&kbrd, 0x1b);
422
		chardev_push_character(&kbrd, 0x5b);
423
		chardev_push_character(&kbrd, 0x33);
424
		chardev_push_character(&kbrd, 0x7e);
425
		break;
601 palkovsky 426
	default:
517 jermar 427
	    	letter = is_lower(ascii);
508 jermar 428
		capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
429
		shift = keyflags & PRESSED_SHIFT;
430
		if (letter && capslock)
431
			shift = !shift;
432
		if (shift)
433
			map = sc_secondary_map;
511 jermar 434
		chardev_push_character(&kbrd, map[sc]);
508 jermar 435
		break;
436
	}
437
	spinlock_unlock(&keylock);
438
}
511 jermar 439
 
440
/* Called from getc(). */
575 palkovsky 441
void i8042_resume(chardev_t *d)
511 jermar 442
{
443
}
444
 
445
/* Called from getc(). */
575 palkovsky 446
void i8042_suspend(chardev_t *d)
511 jermar 447
{
448
}
878 vana 449
 
450
static __u8 active_read_buff_read(void)
451
{
452
	static int i=0;
894 jermar 453
	i &= (ACTIVE_READ_BUFF_SIZE-1);
454
	if(!active_read_buff[i]) {
878 vana 455
		return 0;
456
	}
457
	return active_read_buff[i++];
458
}
459
 
460
static void active_read_buff_write(__u8 ch)
461
{
462
	static int i=0;
894 jermar 463
	active_read_buff[i] = ch;
878 vana 464
	i++;
894 jermar 465
	i &= (ACTIVE_READ_BUFF_SIZE-1);
878 vana 466
	active_read_buff[i]=0;
467
}
468
 
469
 
893 jermar 470
static void active_read_key_pressed(__u8 sc)
878 vana 471
{
472
	char *map = sc_primary_map;
473
	char ascii = sc_primary_map[sc];
474
	bool shift, capslock;
475
	bool letter = false;
476
 
477
	/*spinlock_lock(&keylock);*/
478
	switch (sc) {
479
	case SC_LSHIFT:
480
	case SC_RSHIFT:
481
	    	keyflags |= PRESSED_SHIFT;
482
		break;
483
	case SC_CAPSLOCK:
484
		keyflags |= PRESSED_CAPSLOCK;
485
		break;
486
	case SC_SPEC_ESCAPE:
487
		break;
488
	case SC_LEFTARR:
489
		active_read_buff_write(0x1b);
490
		active_read_buff_write(0x5b);
491
		active_read_buff_write(0x44);
492
		break;
493
	case SC_RIGHTARR:
494
		active_read_buff_write(0x1b);
495
		active_read_buff_write(0x5b);
496
		active_read_buff_write(0x43);
497
		break;
498
	case SC_UPARR:
499
		active_read_buff_write(0x1b);
500
		active_read_buff_write(0x5b);
501
		active_read_buff_write(0x41);
502
		break;
503
	case SC_DOWNARR:
504
		active_read_buff_write(0x1b);
505
		active_read_buff_write(0x5b);
506
		active_read_buff_write(0x42);
507
		break;
508
	case SC_HOME:
509
		active_read_buff_write(0x1b);
510
		active_read_buff_write(0x4f);
511
		active_read_buff_write(0x48);
512
		break;
513
	case SC_END:
514
		active_read_buff_write(0x1b);
515
		active_read_buff_write(0x4f);
516
		active_read_buff_write(0x46);
517
		break;
518
	case SC_DELETE:
519
		active_read_buff_write(0x1b);
520
		active_read_buff_write(0x5b);
521
		active_read_buff_write(0x33);
522
		active_read_buff_write(0x7e);
523
		break;
524
	default:
525
	    	letter = is_lower(ascii);
526
		capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
527
		shift = keyflags & PRESSED_SHIFT;
528
		if (letter && capslock)
529
			shift = !shift;
530
		if (shift)
531
			map = sc_secondary_map;
532
		active_read_buff_write(map[sc]);
533
		break;
534
	}
535
	/*spinlock_unlock(&keylock);*/
536
 
537
}
538
 
539
static char key_read(chardev_t *d)
540
{
541
	char ch;	
542
 
894 jermar 543
	while(!(ch = active_read_buff_read())) {
878 vana 544
		__u8 x;
1753 palkovsky 545
		while (!(i8042_status_read() & i8042_BUFFER_FULL_MASK))
894 jermar 546
			;
547
		x = i8042_data_read();
895 jermar 548
		if (x != IGNORE_CODE) {
549
			if (x & KEY_RELEASE)
550
				key_released(x ^ KEY_RELEASE);
551
			else
552
				active_read_key_pressed(x);
553
		}
878 vana 554
	}
555
	return ch;
556
}
895 jermar 557
 
558
/** Poll for key press and release events.
559
 *
560
 * This function can be used to implement keyboard polling.
561
 */
562
void i8042_poll(void)
563
{
564
	__u8 x;
565
 
566
	while (((x = i8042_status_read() & i8042_BUFFER_FULL_MASK))) {
567
		x = i8042_data_read();
568
		if (x != IGNORE_CODE) {
569
			if (x & KEY_RELEASE)
570
				key_released(x ^ KEY_RELEASE);
571
			else
572
				key_pressed(x);
573
		}
574
	}
575
}
1702 cejka 576
 
1754 jermar 577
/** @}
1702 cejka 578
 */
579