summaryrefslogtreecommitdiff
path: root/hw/xfree86/os-support/linux/lnx_kbd.c
blob: f2d508c04a74e5ec2919dcb4dbe92253a4d8296a (plain)
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
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/lnx_kbd.c,v 1.2 2003/02/17 15:11:57 dawes Exp $ */

/*
 * Copyright (c) 2002 by The XFree86 Project, Inc.
 * Author: Ivan Pascal.
 *
 * Based on the code from lnx_io.c which is
 * Copyright 1992 by Orest Zborowski <obz@Kodak.com>
 * Copyright 1993 by David Dawes <dawes@xfree86.org>
 */

#define NEED_EVENTS
#include "X.h"

#include "compiler.h"

#include "xf86.h"
#include "xf86Priv.h"
#include "xf86_OSlib.h"

#include "xf86Xinput.h"
#include "xf86OSKbd.h"
#include "atKeynames.h"
#include "lnx_kbd.h"

#define KBC_TIMEOUT 250        /* Timeout in ms for sending to keyboard controller */

static KbdProtocolRec protocols[] = {
   {"standard", PROT_STD },
   { NULL, PROT_UNKNOWN }
};

extern Bool VTSwitchEnabled;
#ifdef USE_VT_SYSREQ
extern Bool VTSysreqToggle;
#endif

static void
SoundBell(InputInfoPtr pInfo, int loudness, int pitch, int duration)
{
	if (loudness && pitch)
	{
		ioctl(pInfo->fd, KDMKTONE,
		      ((1193190 / pitch) & 0xffff) |
		      (((unsigned long)duration *
			loudness / 50) << 16));
	}
}

static void
SetKbdLeds(InputInfoPtr pInfo, int leds)
{
    int real_leds = 0;

#if defined (__sparc__)
    KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;
    if (pKbd->sunKbd) {
  	if (leds & 0x08) real_leds |= XLED1;
  	if (leds & 0x04) real_leds |= XLED3;
  	if (leds & 0x02) real_leds |= XLED4;
  	if (leds & 0x01) real_leds |= XLED2;
        leds = real_leds;
        real_leds = 0;
    }
#endif /* defined (__sparc__) */
#ifdef LED_CAP
    if (leds & XLED1)  real_leds |= LED_CAP;
    if (leds & XLED2)  real_leds |= LED_NUM;
    if (leds & XLED3)  real_leds |= LED_SCR;
#ifdef LED_COMP
    if (leds & XLED4)  real_leds |= LED_COMP;
#else
    if (leds & XLED4)  real_leds |= LED_SCR;
#endif
#endif
    ioctl(pInfo->fd, KDSETLED, real_leds);
}

static int
GetKbdLeds(InputInfoPtr pInfo)
{
    int real_leds, leds = 0;

    ioctl(pInfo->fd, KDGETLED, &real_leds);

    if (real_leds & LED_CAP) leds |= XLED1;
    if (real_leds & LED_NUM) leds |= XLED2;
    if (real_leds & LED_SCR) leds |= XLED3;

    return(leds);
}

/* kbd rate stuff based on kbdrate.c from Rik Faith <faith@cs.unc.edu> et.al.
 * from util-linux-2.9t package */


#ifdef __sparc__
#include <asm/param.h>
#include <asm/kbio.h>
#endif

static int
KDKBDREP_ioctl_ok(int rate, int delay) {
#if defined(KDKBDREP) && !defined(__sparc__)
     /* This ioctl is defined in <linux/kd.h> but is not
	implemented anywhere - must be in some m68k patches. */
   struct kbd_repeat kbdrep_s;

   /* don't change, just test */
   kbdrep_s.rate = -1;
   kbdrep_s.delay = -1;
   if (ioctl( 0, KDKBDREP, &kbdrep_s )) {
       return 0;
   }

   /* do the change */
   if (rate == 0)				/* switch repeat off */
     kbdrep_s.rate = 0;
   else
     kbdrep_s.rate  = 10000 / rate;		/* convert cps to msec */
   if (kbdrep_s.rate < 1)
     kbdrep_s.rate = 1;
   kbdrep_s.delay = delay;
   if (kbdrep_s.delay < 1)
     kbdrep_s.delay = 1;
   
   if (ioctl( 0, KDKBDREP, &kbdrep_s )) {
     return 0;
   }

   return 1;			/* success! */
#else /* no KDKBDREP */
   return 0;
#endif /* KDKBDREP */
}

static int
KIOCSRATE_ioctl_ok(int rate, int delay) {
#ifdef KIOCSRATE
   struct kbd_rate kbdrate_s;
   int fd;

   fd = open("/dev/kbd", O_RDONLY);
   if (fd == -1) 
     return 0;   

   kbdrate_s.rate = (rate + 5) / 10;  /* must be integer, so round up */
   kbdrate_s.delay = delay * HZ / 1000;  /* convert ms to Hz */
   if (kbdrate_s.rate > 50)
     kbdrate_s.rate = 50;

   if (ioctl( fd, KIOCSRATE, &kbdrate_s ))
     return 0;

   close( fd );

   return 1;
#else /* no KIOCSRATE */
   return 0;
#endif /* KIOCSRATE */
}

static void
SetKbdRepeat(InputInfoPtr pInfo, char rad)
{
  KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;
  int i;
  int timeout;
  int         value = 0x7f;    /* Maximum delay with slowest rate */

#ifdef __sparc__
  int         rate  = 500;     /* Default rate */
  int         delay = 200;     /* Default delay */
#else
  int         rate  = 300;     /* Default rate */
  int         delay = 250;     /* Default delay */
#endif

  static int valid_rates[] = { 300, 267, 240, 218, 200, 185, 171, 160, 150,
			       133, 120, 109, 100, 92, 86, 80, 75, 67,
			       60, 55, 50, 46, 43, 40, 37, 33, 30, 27,
			       25, 23, 21, 20 };
#define RATE_COUNT (sizeof( valid_rates ) / sizeof( int ))

  static int valid_delays[] = { 250, 500, 750, 1000 };
#define DELAY_COUNT (sizeof( valid_delays ) / sizeof( int ))

  if (pKbd->rate >= 0) 
    rate = pKbd->rate * 10;
  if (pKbd->delay >= 0)
    delay = pKbd->delay;

  if(KDKBDREP_ioctl_ok(rate, delay)) 	/* m68k? */
    return;

  if(KIOCSRATE_ioctl_ok(rate, delay))	/* sparc? */
    return;

  if (xf86IsPc98())
    return;

#if defined(__alpha__) || defined (__i386__) || defined(__ia64__)

  /* The ioport way */

  for (i = 0; i < RATE_COUNT; i++)
    if (rate >= valid_rates[i]) {
      value &= 0x60;
      value |= i;
      break;
    }

  for (i = 0; i < DELAY_COUNT; i++)
    if (delay <= valid_delays[i]) {
      value &= 0x1f;
      value |= i << 5;
      break;
    }

  timeout = KBC_TIMEOUT;
  while (((inb(0x64) & 2) == 2) && --timeout)
       usleep(1000); /* wait */

  if (timeout == 0)
      return;

  outb(0x60, 0xf3);             /* set typematic rate */
  while (((inb(0x64) & 2) == 2) && --timeout)
       usleep(1000); /* wait */

  usleep(10000);
  outb(0x60, value);

#endif /* __alpha__ || __i386__ || __ia64__ */
}

typedef struct {
   int kbdtrans;
   struct termios kbdtty;
} LnxKbdPrivRec, *LnxKbdPrivPtr;

static int
KbdInit(InputInfoPtr pInfo, int what)
{
    KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;
    LnxKbdPrivPtr priv = (LnxKbdPrivPtr) pKbd->private;

    if (pKbd->isConsole) {
        ioctl (pInfo->fd, KDGKBMODE, &(priv->kbdtrans));
        tcgetattr (pInfo->fd, &(priv->kbdtty));
    }
    if (!pKbd->CustomKeycodes) {
        pKbd->RemapScanCode = ATScancode;
    }

    return Success;
}

static int
KbdOn(InputInfoPtr pInfo, int what)
{
    KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;
    LnxKbdPrivPtr priv = (LnxKbdPrivPtr) pKbd->private;
    struct termios nTty;

    if (pKbd->isConsole) {
	if (pKbd->CustomKeycodes)
	    ioctl(pInfo->fd, KDSKBMODE, K_MEDIUMRAW);
	else
	    ioctl(pInfo->fd, KDSKBMODE, K_RAW);

	nTty = priv->kbdtty;
	nTty.c_iflag = (IGNPAR | IGNBRK) & (~PARMRK) & (~ISTRIP);
	nTty.c_oflag = 0;
	nTty.c_cflag = CREAD | CS8;
	nTty.c_lflag = 0;
	nTty.c_cc[VTIME]=0;
	nTty.c_cc[VMIN]=1;
	cfsetispeed(&nTty, 9600);
	cfsetospeed(&nTty, 9600);
	tcsetattr(pInfo->fd, TCSANOW, &nTty);
    }
    return Success;
}

static int
KbdOff(InputInfoPtr pInfo, int what)
{
    KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;
    LnxKbdPrivPtr priv = (LnxKbdPrivPtr) pKbd->private;

    if (pKbd->isConsole) {
	ioctl(pInfo->fd, KDSKBMODE, priv->kbdtrans);
	tcsetattr(pInfo->fd, TCSANOW, &(priv->kbdtty));
    }
    return Success;
}

static int
GetSpecialKey(InputInfoPtr pInfo, int scanCode)
{
  KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;
  int specialkey = scanCode;

#if defined (__sparc__)
  if (pKbd->sunKbd) {
      switch (scanCode) {
          case 0x2b: specialkey = KEY_BackSpace; break;
          case 0x47: specialkey = KEY_KP_Minus; break;
          case 0x7d: specialkey = KEY_KP_Plus; break;
          /* XXX needs cases for KEY_KP_Divide and KEY_KP_Multiply */
          case 0x05: specialkey = KEY_F1; break;
          case 0x06: specialkey = KEY_F2; break;
          case 0x08: specialkey = KEY_F3; break;
          case 0x0a: specialkey = KEY_F4; break;
          case 0x0c: specialkey = KEY_F5; break;
          case 0x0e: specialkey = KEY_F6; break;
          case 0x10: specialkey = KEY_F7; break;
          case 0x11: specialkey = KEY_F8; break;
          case 0x12: specialkey = KEY_F9; break;
          case 0x07: specialkey = KEY_F10; break;
          case 0x09: specialkey = KEY_F11; break;
          case 0x0b: specialkey = KEY_F12; break;
          default: specialkey = 0; break;
      }
      return specialkey;
  }
#endif

  if (pKbd->CustomKeycodes) {
      specialkey = pKbd->specialMap->map[scanCode];
  }
  return specialkey;
}

#define ModifierSet(k) ((modifiers & (k)) == (k))

static
Bool SpecialKey(InputInfoPtr pInfo, int key, Bool down, int modifiers)
{
  KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;

  if(!pKbd->vtSwitchSupported)
      return FALSE;

  if ((ModifierSet(ControlMask | AltMask)) ||
      (ModifierSet(ControlMask | AltLangMask))) {
      if (VTSwitchEnabled && !xf86Info.vtSysreq) {
          switch (key) {
             case KEY_F1:
             case KEY_F2:
             case KEY_F3:
             case KEY_F4:
             case KEY_F5:
             case KEY_F6:
             case KEY_F7:
             case KEY_F8:
             case KEY_F9:
             case KEY_F10:
                  if (down) {
                    ioctl(xf86Info.consoleFd, VT_ACTIVATE, key - KEY_F1 + 1);
                    return TRUE;
                  }
             case KEY_F11:
             case KEY_F12:
                  if (down) {
                    ioctl(xf86Info.consoleFd, VT_ACTIVATE, key - KEY_F11 + 11);
                    return TRUE;
                  }
         }
      }
  }
#ifdef USE_VT_SYSREQ
    if (VTSwitchEnabled && xf86Info.vtSysreq) {
        switch (key) {
            case KEY_F1:
            case KEY_F2:
            case KEY_F3:
            case KEY_F4:
            case KEY_F5:
            case KEY_F6:
            case KEY_F7:
            case KEY_F8:
            case KEY_F9:
            case KEY_F10:
                 if (VTSysreqToggle && down) {
                     ioctl(xf86Info.consoleFd, VT_ACTIVATE, key - KEY_F1 + 1);
                     VTSysreqToggle = FALSE;
                     return TRUE;
                 }
                 break;
            case KEY_F11:
            case KEY_F12:
                 if (VTSysreqToggle && down) {
                     ioctl(xf86Info.consoleFd, VT_ACTIVATE, key - KEY_F11 + 11);
                     VTSysreqToggle = FALSE;
                     return TRUE;
                 }
                 break;
            /* Ignore these keys -- ie don't let them cancel an alt-sysreq */
            case KEY_Alt:
            case KEY_AltLang:
                 break;
            case KEY_SysReqest:
                 if ((ModifierSet(AltMask) || ModifierSet(AltLangMask)) && down)
                     VTSysreqToggle = TRUE;
                 break;
             default:
                 /*
                  * We only land here when Alt-SysReq is followed by a
                  * non-switching key.
                  */
                 if (VTSysreqToggle)
                     VTSysreqToggle = FALSE;
        }
    }
#endif /* USE_VT_SYSREQ */
    return FALSE;
} 

static void
stdReadInput(InputInfoPtr pInfo)
{
    KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;
    unsigned char rBuf[64];
    int nBytes, i;
    if ((nBytes = read( pInfo->fd, (char *)rBuf, sizeof(rBuf))) > 0) {
       for (i = 0; i < nBytes; i++)
           pKbd->PostEvent(pInfo, rBuf[i] & 0x7f,
                           rBuf[i] & 0x80 ? FALSE : TRUE);
       }
}

static Bool
OpenKeyboard(InputInfoPtr pInfo)
{
    KbdDevPtr pKbd = (KbdDevPtr) pInfo->private;
    int i;
    KbdProtocolId prot = PROT_UNKNOWN;
    char *s;

    s = xf86SetStrOption(pInfo->options, "Protocol", NULL);
    for (i = 0; protocols[i].name; i++) {
        if (xf86NameCmp(s, protocols[i].name) == 0) {
           prot = protocols[i].id;
           break;
        }
    }

    switch (prot) {
        case PROT_STD:
           pInfo->read_input = stdReadInput;
           break;
        default:
           xf86Msg(X_ERROR,"\"%s\" is not a valid keyboard protocol name\n", s);
           xfree(s);
           return FALSE;
    }

    xf86Msg(X_CONFIG, "%s: Protocol: %s\n", pInfo->name, s);
    xfree(s);

    s = xf86SetStrOption(pInfo->options, "Device", NULL);
    if (s == NULL) {
       pInfo->fd = xf86Info.consoleFd;
       pKbd->isConsole = TRUE;
    } else {
       pInfo->fd = open(s, O_RDONLY | O_NONBLOCK | O_EXCL);
       if (pInfo->fd == -1) {
           xf86Msg(X_ERROR, "%s: cannot open \"%s\"\n", pInfo->name, s);
           xfree(s);
           return FALSE;
       }
       pKbd->isConsole = FALSE;
       xfree(s);
    }

    if (pKbd->isConsole)
         pKbd->vtSwitchSupported = TRUE;

    return TRUE;
}

Bool
xf86OSKbdPreInit(InputInfoPtr pInfo)
{
    KbdDevPtr pKbd = pInfo->private;

    pKbd->KbdInit       = KbdInit;
    pKbd->KbdOn         = KbdOn;
    pKbd->KbdOff        = KbdOff;
    pKbd->Bell          = SoundBell;
    pKbd->SetLeds       = SetKbdLeds;
    pKbd->GetLeds       = GetKbdLeds;
    pKbd->SetKbdRepeat  = SetKbdRepeat;
    pKbd->KbdGetMapping = KbdGetMapping;
    pKbd->SpecialKey    = SpecialKey;

    pKbd->RemapScanCode = NULL;
    pKbd->GetSpecialKey = GetSpecialKey;

    pKbd->OpenKeyboard = OpenKeyboard;
    pKbd->vtSwitchSupported = FALSE;

    pKbd->private = xcalloc(sizeof(LnxKbdPrivRec), 1);
    if (pKbd->private == NULL) {
       xf86Msg(X_ERROR,"can't allocate keyboard OS private data\n");
       return FALSE;
    }

#if defined(__powerpc__)
  {
    FILE *f;
    f = fopen("/proc/sys/dev/mac_hid/keyboard_sends_linux_keycodes","r");
    if (f) {
        if (fgetc(f) == '0')
            pKbd->CustomKeycodes = TRUE;
        fclose(f);
    }
  }
#endif
    return TRUE;
}