summaryrefslogtreecommitdiff
path: root/hw/xfree86/common/xf86Events.c
blob: 07dd88741731f8a5164189e6c6070debce686797 (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
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86Events.c,v 3.159 2003/11/22 04:22:11 dawes Exp $ */
/*
 * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Thomas Roell not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Thomas Roell makes no representations
 * about the suitability of this software for any purpose.  It is provided
 * "as is" without express or implied warranty.
 *
 * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THOMAS ROELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 *
 */
/*
 * Copyright (c) 1994-2003 by The XFree86 Project, Inc.
 *
 * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
 *
 * Except as contained in this notice, the name of the copyright holder(s)
 * and author(s) shall not be used in advertising or otherwise to promote
 * the sale, use or other dealings in this Software without prior written
 * authorization from the copyright holder(s) and author(s).
 */

/* $XConsortium: xf86Events.c /main/46 1996/10/25 11:36:30 kaleb $ */

/* [JCH-96/01/21] Extended std reverse map to four buttons. */

#ifdef __UNIXOS2__
#define I_NEED_OS2_H
#endif

#include "X.h"
#include "Xpoll.h"
#include "Xproto.h"
#include "misc.h"

#include "compiler.h"

#include "xf86.h"
#include "xf86Priv.h"
#define XF86_OS_PRIVS
#include "xf86_OSlib.h"
#include "atKeynames.h"


#ifdef XFreeXDGA
#include "dgaproc.h"
#endif

#ifdef XINPUT
#include "XI.h"
#include "XIproto.h"
#else
#include "inputstr.h"
#endif
#include "xf86Xinput.h"

#include "mi.h"
#include "mipointer.h"

#ifdef XF86BIGFONT
#define _XF86BIGFONT_SERVER_
#include "xf86bigfont.h"
#endif

#ifdef XKB
extern Bool noXkbExtension;
#endif

#define XE_POINTER  1
#define XE_KEYBOARD 2

#ifdef XINPUT
#define __EqEnqueue(ev) xf86eqEnqueue(ev)
#else
#define __EqEnqueue(ev) mieqEnqueue(ev)
#endif

#define EqEnqueue(ev) { \
    int __sigstate = xf86BlockSIGIO (); \
    __EqEnqueue (ev); \
    xf86UnblockSIGIO(__sigstate); \
}

#ifdef XTESTEXT1

#define	XTestSERVER_SIDE
#include "xtestext1.h"
extern short xtest_mousex;
extern short xtest_mousey;
extern int   on_steal_input;          
extern Bool  XTestStealKeyData();
extern void  XTestStealMotionData();
#define ENQUEUE(ev, code, direction, dev_type) \
  (ev)->u.u.detail = (code); \
  (ev)->u.u.type   = (direction); \
  if (!on_steal_input ||  \
      XTestStealKeyData((ev)->u.u.detail, (ev)->u.u.type, dev_type, \
			xtest_mousex, xtest_mousey)) \
  EqEnqueue((ev))
#else /* ! XTESTEXT1 */

#define ENQUEUE(ev, code, direction, dev_type) \
  (ev)->u.u.detail = (code); \
  (ev)->u.u.type   = (direction); \
  EqEnqueue((ev))

#endif

/*
 * The first of many hacks to get VT switching to work under
 * Solaris 2.1 for x86. The basic problem is that Solaris is supposed
 * to be SVR4. It is for the most part, except where the video interface
 * is concerned.  These hacks work around those problems.
 * See the comments for Linux, and SCO.
 *
 * This is a toggling variable:
 *  FALSE = No VT switching keys have been pressed last time around
 *  TRUE  = Possible VT switch Pending
 * (DWH - 12/2/93)
 *
 * This has been generalised to work with Linux and *BSD+syscons (DHD)
 */

#ifdef USE_VT_SYSREQ
Bool VTSysreqToggle = FALSE;
#endif /* !USE_VT_SYSREQ */
Bool VTSwitchEnabled = TRUE;		/* Allows run-time disabling for
                                         *BSD and for avoiding VT
                                         switches when using the DRI
                                         automatic full screen mode.*/

extern fd_set EnabledDevices;

#if defined(XQUEUE)
extern void xf86XqueRequest(void);
#endif
extern void (*xf86OSPMClose)(void);

static void xf86VTSwitch(void);

/*
 * Allow arbitrary drivers or other XFree86 code to register with our main
 * Wakeup handler.
 */
typedef struct x_IHRec {
    int			fd;
    InputHandlerProc	ihproc;
    pointer		data;
    Bool		enabled;
    struct x_IHRec *	next;
} IHRec, *IHPtr;

static IHPtr InputHandlers = NULL;


/*
 * TimeSinceLastInputEvent --
 *      Function used for screensaver purposes by the os module. Returns the
 *      time in milliseconds since there last was any input.
 */

int
TimeSinceLastInputEvent()
{
  if (xf86Info.lastEventTime == 0) {
    xf86Info.lastEventTime = GetTimeInMillis();
  }
  return GetTimeInMillis() - xf86Info.lastEventTime;
}



/*
 * SetTimeSinceLastInputEvent --
 *      Set the lastEventTime to now.
 */

void
SetTimeSinceLastInputEvent()
{
  xf86Info.lastEventTime = GetTimeInMillis();
}



/*
 * ProcessInputEvents --
 *      Retrieve all waiting input events and pass them to DIX in their
 *      correct chronological order. Only reads from the system pointer
 *      and keyboard.
 */

void
ProcessInputEvents ()
{
  int x, y;
#ifdef INHERIT_LOCK_STATE
  static int generation = 0;
#endif

    /*
     * With INHERIT_LOCK_STATE defined, the initial state of CapsLock, NumLock
     * and ScrollLock will be set to match that of the VT the server is
     * running on.
     */
#ifdef INHERIT_LOCK_STATE
    if (generation != serverGeneration) {
      xEvent kevent;
      DevicePtr pKeyboard = xf86Info.pKeyboard;
      extern unsigned int xf86InitialCaps, xf86InitialNum, xf86InitialScroll;

      generation = serverGeneration;
      kevent.u.keyButtonPointer.time = GetTimeInMillis();
      kevent.u.keyButtonPointer.rootX = 0;
      kevent.u.keyButtonPointer.rootY = 0;
      kevent.u.u.type = KeyPress;


      if (xf86InitialCaps) {
        kevent.u.u.detail = xf86InitialCaps;
        (* pKeyboard->processInputProc)(&kevent, (DeviceIntPtr)pKeyboard, 1);
        xf86InitialCaps = 0;
      }
      if (xf86InitialNum) {
        kevent.u.u.detail = xf86InitialNum;
        (* pKeyboard->processInputProc)(&kevent, (DeviceIntPtr)pKeyboard, 1);
        xf86InitialNum = 0;
      }
      if (xf86InitialScroll) {
        kevent.u.u.detail = xf86InitialScroll;
        (* pKeyboard->processInputProc)(&kevent, (DeviceIntPtr)pKeyboard, 1);
        xf86InitialScroll = 0;
      }
    }
#endif

  xf86Info.inputPending = FALSE;

#ifdef XINPUT
  xf86eqProcessInputEvents();
#else
  mieqProcessInputEvents();
#endif
  miPointerUpdate();

  miPointerPosition(&x, &y);
  xf86SetViewport(xf86Info.currentScreen, x, y);
}

void
xf86GrabServerCallback(CallbackListPtr *callbacks, pointer data, pointer args)
{
    ServerGrabInfoRec *grab = (ServerGrabInfoRec*)args;

    xf86Info.grabInfo.server.client = grab->client;
    xf86Info.grabInfo.server.grabstate = grab->grabstate;
}

/*
 * Handle keyboard events that cause some kind of "action"
 * (i.e., server termination, video mode changes, VT switches, etc.)
 */
void
xf86ProcessActionEvent(ActionEvent action, void *arg)
{
#ifdef DEBUG
    ErrorF("ProcessActionEvent(%d,%x)\n", (int) action, arg);
#endif
    switch (action) {
    case ACTION_TERMINATE:
	if (!xf86Info.dontZap) {
#ifdef XFreeXDGA
	    DGAShutdown();
#endif
	    GiveUp(0);
	}
	break;
    case ACTION_NEXT_MODE:
	if (!xf86Info.dontZoom)
	    xf86ZoomViewport(xf86Info.currentScreen,  1);
	break;
    case ACTION_PREV_MODE:
	if (!xf86Info.dontZoom)
	    xf86ZoomViewport(xf86Info.currentScreen, -1);
	break;
    case ACTION_DISABLEGRAB:
	if (!xf86Info.grabInfo.disabled && xf86Info.grabInfo.allowDeactivate) {
	  if (inputInfo.pointer && inputInfo.pointer->grab != NULL &&
	      inputInfo.pointer->DeactivateGrab)
	    inputInfo.pointer->DeactivateGrab(inputInfo.pointer);
	  if (inputInfo.keyboard && inputInfo.keyboard->grab != NULL &&
	      inputInfo.keyboard->DeactivateGrab)
	    inputInfo.keyboard->DeactivateGrab(inputInfo.keyboard);
	}
	break;
    case ACTION_CLOSECLIENT:
	if (!xf86Info.grabInfo.disabled && xf86Info.grabInfo.allowClosedown) {
	  ClientPtr pointer, keyboard, server;

	  pointer = keyboard = server = NULL;
	  if (inputInfo.pointer && inputInfo.pointer->grab != NULL)
	    pointer = clients[CLIENT_ID(inputInfo.pointer->grab->resource)];
	  if (inputInfo.keyboard && inputInfo.keyboard->grab != NULL) {
	    keyboard = clients[CLIENT_ID(inputInfo.keyboard->grab->resource)];
	    if (keyboard == pointer)
	      keyboard = NULL;
	  }
	  if ((xf86Info.grabInfo.server.grabstate == SERVER_GRABBED) &&
	      (((server = xf86Info.grabInfo.server.client) == pointer) ||
	       (server == keyboard)))
	      server = NULL;

	  if (pointer)
	    CloseDownClient(pointer);
	  if (keyboard)
	    CloseDownClient(keyboard);
	  if (server)
	    CloseDownClient(server);
	}
	break;
#if !defined(__SOL8__) && !defined(__UNIXOS2__) && !defined(sgi) && \
    (!defined(sun) || defined(i386)) && defined(VT_ACTIVATE)
    case ACTION_SWITCHSCREEN:
	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && arg) {
	    int vtno = *((int *) arg);
#ifdef SCO
	    vtno--;
#endif
#if defined(QNX4)
	    xf86Info.vtRequestsPending = vtno;
#else
	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, vtno) < 0)
		ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
#endif
	}
	break;
    case ACTION_SWITCHSCREEN_NEXT:
	if (VTSwitchEnabled && !xf86Info.dontVTSwitch) {
#if defined(SCO) /* Shouldn't this be true for (sun) && (i386) && (SVR4) ? */
	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) < 0)
#else
	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno + 1) < 0)
#endif
#if defined (SCO) || (defined(sun) && defined (i386) && defined (SVR4))
		if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 0) < 0)
#else
		if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 1) < 0)
#endif
		    ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
	}
	break;
    case ACTION_SWITCHSCREEN_PREV:
	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && xf86Info.vtno > 0) {
	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno - 1) < 0)
		ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
	}
	break;
#endif
    case ACTION_MESSAGE:
        {
            char *retstr, *message = (char *) arg;
	    ScrnInfoPtr pScr = XF86SCRNINFO(xf86Info.currentScreen);

#ifdef DEBUG
            ErrorF("ActionMessage: '%s'\n", message);
#endif
	    /* Okay the message made it to the ddx.  The common layer */
	    /* can check for relevant messages here and react to any  */
	    /* that have a global effect.  For example:               */ 
	    /*                                                        */
	    /* if (!strcmp(message, "foo") {                          */
	    /*      do_foo(); break                                   */
	    /* }                                                      */
	    /*                                                        */
	    /* otherwise fallback to sending a key event message to   */
	    /* the current screen's driver:                           */
	    if (*pScr->HandleMessage) {
		(void) (*pScr->HandleMessage)(pScr->scrnIndex,
			"KeyEventMessage", message, &retstr);
	    }
        }
	break;
    default:
	break;
    }
}

/*
 * xf86PostKbdEvent --
 *	Translate the raw hardware KbdEvent into an XEvent, and tell DIX
 *	about it. Scancode preprocessing and so on is done ...
 *
 *  OS/2 specific xf86PostKbdEvent(key) has been moved to os-support/os2/os2_kbd.c
 *  as some things differ, and I did not want to scatter this routine with
 *  ifdefs further (hv).
 */

#ifdef __linux__
extern u_char SpecialServerMap[];
#endif

#if !defined(__UNIXOS2__) && \
    !defined(__SOL8__) && \
    (!defined(sun) || defined(i386)) 
void
xf86PostKbdEvent(unsigned key)
{
  int         scanCode = (key & 0x7f);
  int         specialkey = 0;
  Bool        down = (key & 0x80 ? FALSE : TRUE);
  KeyClassRec *keyc = ((DeviceIntPtr)xf86Info.pKeyboard)->key;
  Bool        updateLeds = FALSE;
  Bool        UsePrefix = FALSE;
  Bool        Direction = FALSE;
  xEvent      kevent;
  KeySym      *keysym;
  int         keycode;
  static int  lockkeys = 0;
#if defined(SYSCONS_SUPPORT) || defined(PCVT_SUPPORT) || defined(WSCONS_SUPPORT)
  static Bool first_time = TRUE;
#endif
#if defined(__sparc__) && defined(__linux__)
  static int  kbdSun = -1;
#endif
  /* Disable any keyboard processing while in suspend */
  if (xf86inSuspend)
      return;

#if defined(SYSCONS_SUPPORT) || defined(PCVT_SUPPORT) || defined(WSCONS_SUPPORT)
  if (first_time)
  {
    first_time = FALSE;
    VTSwitchEnabled = (xf86Info.consType == SYSCONS)
	    || (xf86Info.consType == PCVT);
  }
#endif

#if defined (__sparc__) && defined(__linux__)
  if (kbdSun == -1) {
    if ((xf86Info.xkbmodel && !strcmp(xf86Info.xkbmodel, "sun"))
	|| (xf86Info.xkbrules && !strcmp(xf86Info.xkbrules, "sun")))
      kbdSun = 1;
    else
      kbdSun = 0;
  }
  if (kbdSun)
    goto special;
#endif /* __sparc__ && __linux__ */

#ifdef __linux__
  if (xf86Info.kbdCustomKeycodes) {
    specialkey = SpecialServerMap[scanCode];
    goto customkeycodes;
  }
#endif

  /*
   * First do some special scancode remapping ...
   */
  if (xf86Info.scanPrefix == 0) {

    switch (scanCode) {
    case KEY_Prefix0:
    case KEY_Prefix1:
#if defined(PCCONS_SUPPORT) || defined(SYSCONS_SUPPORT) || defined(PCVT_SUPPORT) || defined(WSCONS_SUPPORT)
      if (xf86Info.consType == PCCONS || xf86Info.consType == SYSCONS
	  || xf86Info.consType == PCVT
#ifdef WSCONS_SUPPORT
	  || (xf86Info.consType == WSCONS && xf86Info.kbdEvents != xf86WSKbdEvents)
#endif
      ) {
#endif
        xf86Info.scanPrefix = scanCode;  /* special prefixes */
        return;
#if defined(PCCONS_SUPPORT) || defined(SYSCONS_SUPPORT) || defined(PCVT_SUPPORT) || defined(WSCONS_SUPPORT)
      }
      break;
#endif
    }
#if defined (i386) && defined (SVR4)
    /* 
     * PANIX returns DICOP standards based keycodes in using 106jp 
     * keyboard. We need to remap some keys. 
     */
    if(xf86Info.panix106 == TRUE){
      switch (scanCode) {
      case 0x56:        scanCode = KEY_BSlash2;	break;  /* Backslash */
      case 0x5A:        scanCode = KEY_NFER;	break;  /* No Kanji Transfer*/
      case 0x5B:        scanCode = KEY_XFER;	break;  /* Kanji Tranfer */
      case 0x5C:        scanCode = KEY_Yen;	break;  /* Yen curs pgup */
      case 0x6B:        scanCode = KEY_Left;	break;  /* Cur Left */
      case 0x6F:        scanCode = KEY_PgUp;	break;  /* Cur PageUp */
      case 0x72:        scanCode = KEY_AltLang;	break;  /* AltLang(right) */
      case 0x73:        scanCode = KEY_RCtrl;	break;  /* not needed */
      }
    } else
#endif /* i386 && SVR4 */
    {
      switch (scanCode) {
      case 0x59:        scanCode = KEY_0x59; break;
      case 0x5a:        scanCode = KEY_0x5A; break;
      case 0x5b:        scanCode = KEY_0x5B; break;
      case 0x5c:        scanCode = KEY_KP_Equal; break; /* Keypad Equal */
      case 0x5d:        scanCode = KEY_0x5D; break;
      case 0x5e:        scanCode = KEY_0x5E; break;
      case 0x5f:        scanCode = KEY_0x5F; break;
      case 0x62:        scanCode = KEY_0x62; break;
      case 0x63:        scanCode = KEY_0x63; break;
      case 0x64:        scanCode = KEY_0x64; break;
      case 0x65:        scanCode = KEY_0x65; break;
      case 0x66:        scanCode = KEY_0x66; break;
      case 0x67:        scanCode = KEY_0x67; break;
      case 0x68:        scanCode = KEY_0x68; break;
      case 0x69:        scanCode = KEY_0x69; break;
      case 0x6a:        scanCode = KEY_0x6A; break;
      case 0x6b:        scanCode = KEY_0x6B; break;
      case 0x6c:        scanCode = KEY_0x6C; break;
      case 0x6d:        scanCode = KEY_0x6D; break;
      case 0x6e:        scanCode = KEY_0x6E; break;
      case 0x6f:        scanCode = KEY_0x6F; break;
      case 0x70:        scanCode = KEY_0x70; break;
      case 0x71:        scanCode = KEY_0x71; break;
      case 0x72:        scanCode = KEY_0x72; break;
      case 0x73:        scanCode = KEY_0x73; break;
      case 0x74:        scanCode = KEY_0x74; break;
      case 0x75:        scanCode = KEY_0x75; break;
      case 0x76:        scanCode = KEY_0x76; break;
      }
    }
  }

  else if (
#ifdef CSRG_BASED
           (xf86Info.consType == PCCONS || xf86Info.consType == SYSCONS
	    || xf86Info.consType == PCVT
#ifdef WSCONS_SUPPORT
	      || (xf86Info.consType == WSCONS && xf86Info.kbdEvents !=
	      xf86WSKbdEvents)
#endif
	      ) &&
#endif
           (xf86Info.scanPrefix == KEY_Prefix0)) {
    xf86Info.scanPrefix = 0;
	  
    switch (scanCode) {
    case KEY_KP_7:        scanCode = KEY_Home;      break;  /* curs home */
    case KEY_KP_8:        scanCode = KEY_Up;        break;  /* curs up */
    case KEY_KP_9:        scanCode = KEY_PgUp;      break;  /* curs pgup */
    case KEY_KP_4:        scanCode = KEY_Left;      break;  /* curs left */
    case KEY_KP_5:        scanCode = KEY_Begin;     break;  /* curs begin */
    case KEY_KP_6:        scanCode = KEY_Right;     break;  /* curs right */
    case KEY_KP_1:        scanCode = KEY_End;       break;  /* curs end */
    case KEY_KP_2:        scanCode = KEY_Down;      break;  /* curs down */
    case KEY_KP_3:        scanCode = KEY_PgDown;    break;  /* curs pgdown */
    case KEY_KP_0:        scanCode = KEY_Insert;    break;  /* curs insert */
    case KEY_KP_Decimal:  scanCode = KEY_Delete;    break;  /* curs delete */
    case KEY_Enter:       scanCode = KEY_KP_Enter;  break;  /* keypad enter */
    case KEY_LCtrl:       scanCode = KEY_RCtrl;     break;  /* right ctrl */
    case KEY_KP_Multiply: scanCode = KEY_Print;     break;  /* print */
    case KEY_Slash:       scanCode = KEY_KP_Divide; break;  /* keyp divide */
    case KEY_Alt:         scanCode = KEY_AltLang;   break;  /* right alt */
    case KEY_ScrollLock:  scanCode = KEY_Break;     break;  /* curs break */
    case 0x5b:            scanCode = KEY_LMeta;     break;
    case 0x5c:            scanCode = KEY_RMeta;     break;
    case 0x5d:            scanCode = KEY_Menu;      break;
    case KEY_F3:          scanCode = KEY_F13;       break;
    case KEY_F4:          scanCode = KEY_F14;       break;
    case KEY_F5:          scanCode = KEY_F15;       break;
    case KEY_F6:          scanCode = KEY_F16;       break;
    case KEY_F7:          scanCode = KEY_F17;       break;
    case KEY_KP_Plus:     scanCode = KEY_KP_DEC;    break;
      /*
       * Ignore virtual shifts (E0 2A, E0 AA, E0 36, E0 B6)
       */
    case 0x2A:
    case 0x36:
	return;
    default:
      xf86MsgVerb(X_INFO, 4, "Unreported Prefix0 scancode: 0x%02x\n",
		  scanCode);
      /*
       * "Internet" keyboards are generating lots of new codes.  Let them
       * pass.  There is little consistency between them, so don't bother
       * with symbolic names at this level.
       */
      scanCode += 0x78;
    }
  }
  
  else if (xf86Info.scanPrefix == KEY_Prefix1)
    {
      xf86Info.scanPrefix = (scanCode == KEY_LCtrl) ? KEY_LCtrl : 0;
      return;
    }
  
  else if (xf86Info.scanPrefix == KEY_LCtrl)
    {
      xf86Info.scanPrefix = 0;
      if (scanCode != KEY_NumLock) return;
      scanCode = KEY_Pause;       /* pause */
    }

#ifndef __sparc64__
  /*
   * PC keyboards generate separate key codes for
   * Alt+Print and Control+Pause but in the X keyboard model
   * they need to get the same key code as the base key on the same
   * physical keyboard key.
   */
  if (scanCode == KEY_SysReqest)
    scanCode = KEY_Print;
  else if (scanCode == KEY_Break)
    scanCode = KEY_Pause;
#endif
  
  /*
   * and now get some special keysequences
   */

  specialkey = scanCode;

#ifdef __linux__
customkeycodes:
#endif
#if defined(i386) || defined(__i386__)
  if (xf86IsPc98()) {
    switch (scanCode) {
      case 0x0e: specialkey = 0x0e; break; /* KEY_BackSpace */
      case 0x40: specialkey = 0x4a; break; /* KEY_KP_Minus  */
      case 0x49: specialkey = 0x4e; break; /* KEY_KP_Plus   */

      /* XXX needs cases for KEY_KP_Divide and KEY_KP_Multiply */

      case 0x62: specialkey = 0x3b; break; /* KEY_F1        */
      case 0x63: specialkey = 0x3c; break; /* KEY_F2        */
      case 0x64: specialkey = 0x3d; break; /* KEY_F3        */
      case 0x65: specialkey = 0x3e; break; /* KEY_F4        */
      case 0x66: specialkey = 0x3f; break; /* KEY_F5        */
      case 0x67: specialkey = 0x40; break; /* KEY_F6        */
      case 0x68: specialkey = 0x41; break; /* KEY_F7        */
      case 0x69: specialkey = 0x42; break; /* KEY_F8        */
      case 0x6a: specialkey = 0x43; break; /* KEY_F9        */
      case 0x6b: specialkey = 0x44; break; /* KEY_F10       */
      /* case 0x73: specialkey = 0x38; break; KEY_Alt       */
      /* case 0x74: specialkey = 0x1d; break; KEY_LCtrl     */
      default:   specialkey = 0x00; break;
    }
  }
#endif
#if defined (__sparc__) && defined(__linux__)
special:
  if (kbdSun) {
    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;
    }
    /*
     * XXX XXX XXX:
     *
     * I really don't know what's wrong here, but passing the real
     * scanCode offsets by one from XKB's point of view.
     *
     * (ecd@skynet.be, 980405)
     */
    scanCode--;
  }
#endif /* defined (__sparc__) && defined(__linux__) */

#ifdef XKB
  if ((xf86Info.ddxSpecialKeys == SKWhenNeeded &&
       !xf86Info.ActionKeyBindingsSet) ||
      noXkbExtension || xf86Info.ddxSpecialKeys == SKAlways) {
#endif
  if (!(ModifierDown(ShiftMask)) &&
      ((ModifierDown(ControlMask | AltMask)) ||
       (ModifierDown(ControlMask | AltLangMask))))
    {
      switch (specialkey) {
	
      case KEY_BackSpace:
	xf86ProcessActionEvent(ACTION_TERMINATE, NULL);
	break;

      /*
       * Check grabs
       */
      case KEY_KP_Divide:
	xf86ProcessActionEvent(ACTION_DISABLEGRAB, NULL);
	break;
      case KEY_KP_Multiply:
	xf86ProcessActionEvent(ACTION_CLOSECLIENT, NULL);
	break;

      /*
       * Video mode switches
       */
      case KEY_KP_Minus:   /* Keypad - */
	if (down) xf86ProcessActionEvent(ACTION_PREV_MODE, NULL);
	if (!xf86Info.dontZoom) return;
	break;
	
      case KEY_KP_Plus:   /* Keypad + */
	if (down) xf86ProcessActionEvent(ACTION_NEXT_MODE, NULL);
	if (!xf86Info.dontZoom) return;
	break;

	/* Under QNX4, we set the vtPending flag for VT switching and 
	 * let the VT switch function do the rest...
	 * This is a little different from the other OS'es.
	 */
#if defined(QNX4)
      case KEY_1:
      case KEY_2:
      case KEY_3:
      case KEY_4:
      case KEY_5:
      case KEY_6:
      case KEY_7:
      case KEY_8:
      case KEY_9:
	if (VTSwitchEnabled && !xf86Info.dontVTSwitch) {
	  if (down) {
	    int vtno = specialkey - KEY_1 + 1;
	    xf86ProcessActionEvent(ACTION_SWITCHSCREEN, (void *) &vtno);
	  }
	  return;
	}
	break;
#endif

#if defined(linux) || (defined(CSRG_BASED) && (defined(SYSCONS_SUPPORT) || defined(PCVT_SUPPORT) || defined(WSCONS_SUPPORT))) || defined(SCO)
	/*
	 * Under Linux, the raw keycodes are consumed before the kernel
	 * does any processing on them, so we must emulate the vt switching
	 * we want ourselves.
	 */
      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:
      case KEY_F11:
      case KEY_F12:
	if ((VTSwitchEnabled && !xf86Info.vtSysreq && !xf86Info.dontVTSwitch)
#if (defined(CSRG_BASED) && (defined(SYSCONS_SUPPORT) || defined(PCVT_SUPPORT) || defined(WSCONS_SUPPORT)))
	    && (xf86Info.consType == SYSCONS || xf86Info.consType == PCVT)
#endif
	   ) {
	    int vtno = specialkey - KEY_F1 + 1;
	    if (specialkey == KEY_F11 || specialkey == KEY_F12)
		vtno = specialkey - KEY_F11 + 11;
	    if (down)
		xf86ProcessActionEvent(ACTION_SWITCHSCREEN, (void *) &vtno);
	    return;
	}
	break;
#endif /* linux || BSD with VTs */

      /* just worth mentioning here: any 386bsd keyboard driver
       * (pccons.c or co_kbd.c) catches CTRL-ALT-DEL and CTRL-ALT-ESC
       * before any application (e.g. XF86) will see it
       * OBS: syscons does not, nor does pcvt !
       */
      } 
    }

    /*
     * Start of actual Solaris VT switching code.  
     * This should pretty much emulate standard SVR4 switching keys.
     * 
     * DWH 12/2/93
     */

#ifdef USE_VT_SYSREQ
    if (VTSwitchEnabled && xf86Info.vtSysreq && !xf86Info.dontVTSwitch)
    {
      switch (specialkey)
      {
      /*
       * syscons on *BSD doesn't have a VT #0  -- don't think Linux does
       * either
       */
#if defined (sun) && defined (i386) && defined (SVR4)
      case KEY_H: 
	if (VTSysreqToggle && down)
        {
	  xf86ProcessActionEvent(ACTION_SWITCHSCREEN, NULL);
          VTSysreqToggle = 0;
          return; 
        }
	break;

      /*
       * Yah, I know the N, and P keys seem backwards, however that's
       * how they work under Solaris
       * XXXX N means go to next active VT not necessarily vtno+1 (or vtno-1)
       */

      case KEY_N:
	if (VTSysreqToggle && down)
	{
	  xf86ProcessActionEvent(ACTION_SWITCHSCREEN_NEXT, NULL);
          VTSysreqToggle = FALSE;
          return;
        }
	break;

      case KEY_P:
	if (VTSysreqToggle && down)
	{
	  xf86ProcessActionEvent(ACTION_SWITCHSCREEN_NEXT, NULL);
          VTSysreqToggle = FALSE;
          return;
        }
	break;
#endif

      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:
      case KEY_F11:
      case KEY_F12:
	if (VTSysreqToggle && down)
	{ int vtno = specialkey - KEY_F1 + 1;
	  if (specialkey == KEY_F11 || specialkey == KEY_F12)
	    vtno = specialkey - KEY_F11 + 11;
	  xf86ProcessActionEvent(ACTION_SWITCHSCREEN, (void *) &vtno);
          VTSysreqToggle = FALSE;
          return;
        }
	break;

      /* Ignore these keys -- ie don't let them cancel an alt-sysreq */
      case KEY_Alt:
      case KEY_AltLang:
	break;

      case KEY_SysReqest:
        if (down && (ModifierDown(AltMask) || ModifierDown(AltLangMask)))
          VTSysreqToggle = TRUE;
	break;

      default:
        if (VTSysreqToggle)
	{
	  /*
	   * We only land here when Alt-SysReq is followed by a
	   * non-switching key.
	   */
          VTSysreqToggle = FALSE;

        }
      }
    }

#endif /* USE_VT_SYSREQ */

#ifdef SCO
    /*
     *	With the console in raw mode, SCO will not switch consoles,
     *	you get around this by activating the next console along, if
     *	this fails then go back to console 0, if there is only one
     *	then it doesn't matter, switching to yourself is a nop as far
     *	as the console driver is concerned.
     *	We could do something similar to linux here but SCO ODT uses
     *	Ctrl-PrintScrn, so why change?
     */
    if (specialkey == KEY_Print && ModifierDown(ControlMask)) {
      if (down)
	xf86ProcessActionEvent(ACTION_SWITCHSCREEN_NEXT, NULL);
      return;
    }
#endif /* SCO */
#ifdef XKB
    }
#endif

  /*
   * Now map the scancodes to real X-keycodes ...
   */
  keycode = scanCode + MIN_KEYCODE;
  keysym = (keyc->curKeySyms.map +
	    keyc->curKeySyms.mapWidth * 
	    (keycode - keyc->curKeySyms.minKeyCode));
#ifdef XKB
  if (noXkbExtension) {
#endif
  /*
   * Filter autorepeated caps/num/scroll lock keycodes.
   */
#define CAPSFLAG 0x01
#define NUMFLAG 0x02
#define SCROLLFLAG 0x04
#define MODEFLAG 0x08
  if( down ) {
    switch( keysym[0] ) {
        case XK_Caps_Lock :
          if (lockkeys & CAPSFLAG)
              return;
	  else
	      lockkeys |= CAPSFLAG;
          break;

        case XK_Num_Lock :
          if (lockkeys & NUMFLAG)
              return;
	  else
	      lockkeys |= NUMFLAG;
          break;

        case XK_Scroll_Lock :
          if (lockkeys & SCROLLFLAG)
              return;
	  else
	      lockkeys |= SCROLLFLAG;
          break;
    }
    if (keysym[1] == XF86XK_ModeLock)
    {
      if (lockkeys & MODEFLAG)
          return;
      else
          lockkeys |= MODEFLAG;
    }
      
  }
  else {
    switch( keysym[0] ) {
        case XK_Caps_Lock :
            lockkeys &= ~CAPSFLAG;
            break;

        case XK_Num_Lock :
            lockkeys &= ~NUMFLAG;
            break;

        case XK_Scroll_Lock :
            lockkeys &= ~SCROLLFLAG;
            break;
    }
    if (keysym[1] == XF86XK_ModeLock)
      lockkeys &= ~MODEFLAG;
  }

  /*
   * LockKey special handling:
   * ignore releases, toggle on & off on presses.
   * Don't deal with the Caps_Lock keysym directly, but check the lock modifier
   */
  if (keyc->modifierMap[keycode] & LockMask ||
      keysym[0] == XK_Scroll_Lock ||
      keysym[1] == XF86XK_ModeLock ||
      keysym[0] == XK_Num_Lock)
    {
      Bool flag;

      if (!down) return;
      if (KeyPressed(keycode)) {
	down = !down;
	flag = FALSE;
      }
      else
	flag = TRUE;

      if (keyc->modifierMap[keycode] & LockMask)   xf86Info.capsLock   = flag;
      if (keysym[0] == XK_Num_Lock)    xf86Info.numLock    = flag;
      if (keysym[0] == XK_Scroll_Lock) xf86Info.scrollLock = flag;
      if (keysym[1] == XF86XK_ModeLock)   xf86Info.modeSwitchLock = flag;
      updateLeds = TRUE;
    }

  if (!xf86Info.kbdCustomKeycodes) {
    /*
     * normal, non-keypad keys
     */
    if (scanCode < KEY_KP_7 || scanCode > KEY_KP_Decimal) {
#if !defined(CSRG_BASED) && \
    !defined(__GNU__) && \
     defined(KB_84)
      /*
       * magic ALT_L key on AT84 keyboards for multilingual support
       */
      if (xf86Info.kbdType == KB_84 &&
	  ModifierDown(AltMask) &&
	  keysym[2] != NoSymbol)
	{
	  UsePrefix = TRUE;
	  Direction = TRUE;
	}
#endif /* !CSRG_BASED && ... */
    }
  }
  if (updateLeds) xf86UpdateKbdLeds();
#ifdef XKB
  }
#endif

  /*
   * check for an autorepeat-event
   */
  if (down && KeyPressed(keycode)) {
      KbdFeedbackClassRec *kbdfeed = ((DeviceIntPtr)xf86Info.pKeyboard)->kbdfeed;
      if ((xf86Info.autoRepeat != AutoRepeatModeOn) ||
          keyc->modifierMap[keycode] ||
          (kbdfeed && !(kbdfeed->ctrl.autoRepeats[keycode>>3] & ( 1<<(keycode&7) ))))
          return;
  }


  xf86Info.lastEventTime = kevent.u.keyButtonPointer.time = GetTimeInMillis();
  /*
   * And now send these prefixes ...
   * NOTE: There cannot be multiple Mode_Switch keys !!!!
   */
  if (UsePrefix)
    {
      ENQUEUE(&kevent,
	      keyc->modifierKeyMap[keyc->maxKeysPerModifier*7],
	      (Direction ? KeyPress : KeyRelease),
	      XE_KEYBOARD);
      ENQUEUE(&kevent, keycode, (down ? KeyPress : KeyRelease), XE_KEYBOARD);
      ENQUEUE(&kevent,
	      keyc->modifierKeyMap[keyc->maxKeysPerModifier*7],
	      (Direction ? KeyRelease : KeyPress),
	      XE_KEYBOARD);
    }
  else 
    {
      ENQUEUE(&kevent, keycode, (down ? KeyPress : KeyRelease), XE_KEYBOARD);
    }
}
#endif /* !__UNIXOS2__ */

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

Bool
xf86CommonSpecialKey(int key, Bool down, int modifiers)
{
  if ((ModifierIsSet(ControlMask | AltMask)) ||
      (ModifierIsSet(ControlMask | AltLangMask))) {
      switch (key) {
	
      case KEY_BackSpace:
	xf86ProcessActionEvent(ACTION_TERMINATE, NULL);
	break;

      /*
       * Check grabs
       */
      case KEY_KP_Divide:
	xf86ProcessActionEvent(ACTION_DISABLEGRAB, NULL);
	break;
      case KEY_KP_Multiply:
	xf86ProcessActionEvent(ACTION_CLOSECLIENT, NULL);
	break;
	
	/*
	 * The idea here is to pass the scancode down to a list of
	 * registered routines. There should be some standard conventions
	 * for processing certain keys.
	 */
      case KEY_KP_Minus:   /* Keypad - */
	if (down) xf86ProcessActionEvent(ACTION_PREV_MODE, NULL);
	if (!xf86Info.dontZoom) return TRUE;
	break;
	
      case KEY_KP_Plus:   /* Keypad + */
	if (down) xf86ProcessActionEvent(ACTION_NEXT_MODE, NULL);
	if (!xf86Info.dontZoom) return TRUE;
	break;
      }
  }
  return FALSE;
}

/*
 * xf86Wakeup --
 *      Os wakeup handler.
 */

/* ARGSUSED */
void
xf86Wakeup(pointer blockData, int err, pointer pReadmask)
{
#if !defined(__UNIXOS2__) && !defined(__QNX__)
    fd_set* LastSelectMask = (fd_set*)pReadmask;
    fd_set devicesWithInput;
    InputInfoPtr pInfo;

    if (err >= 0) {

	XFD_ANDSET(&devicesWithInput, LastSelectMask, &EnabledDevices);
	if (XFD_ANYSET(&devicesWithInput)) {
	    if (xf86Info.kbdEvents)
	    	(xf86Info.kbdEvents)();
	    pInfo = xf86InputDevs;
	    while (pInfo) {
		if (pInfo->read_input && pInfo->fd >= 0 &&
		    (FD_ISSET(pInfo->fd, &devicesWithInput) != 0)) {
		    int sigstate = xf86BlockSIGIO();
		    
		    pInfo->read_input(pInfo);
		    xf86UnblockSIGIO(sigstate);		    
		    /*
		     * Remove the descriptior from the set because more than one
		     * device may share the same file descriptor.
		     */
		    FD_CLR(pInfo->fd, &devicesWithInput);
		}
		pInfo = pInfo->next;
	    }
	}
    }
#else   /* __UNIXOS2__ and __QNX__ */

    InputInfoPtr pInfo;

    (xf86Info.kbdEvents)();  /* Under OS/2 and QNX, always call */

    pInfo = xf86InputDevs;
    while (pInfo) {
		if (pInfo->read_input && pInfo->fd >= 0) {
		    int sigstate = xf86BlockSIGIO();
		    
		    pInfo->read_input(pInfo);
		    xf86UnblockSIGIO(sigstate);		    
		    /*
		     * Must break here because more than one device may share
		     * the same file descriptor.
		     */
		    break;
		}
		pInfo = pInfo->next;
    }

#endif  /* __UNIXOS2__ and __QNX__ */

    if (err >= 0) { /* we don't want the handlers called if select() */
	IHPtr ih;   /* returned with an error condition, do we?      */
	
	for (ih = InputHandlers; ih; ih = ih->next) {
	    if (ih->enabled && ih->fd >= 0 && ih->ihproc &&
		(FD_ISSET(ih->fd, ((fd_set *)pReadmask)) != 0)) {
		ih->ihproc(ih->fd, ih->data);
	    }
	}
    }
    
    if (xf86VTSwitchPending()) xf86VTSwitch();

    if (xf86Info.inputPending) ProcessInputEvents();
}


/*
 * xf86SigioReadInput --
 *    signal handler for the SIGIO signal.
 */
static void
xf86SigioReadInput(int fd,
		   void *closure)
{
    int sigstate = xf86BlockSIGIO();
    InputInfoPtr pInfo = (InputInfoPtr) closure;

    pInfo->read_input(pInfo);

    xf86UnblockSIGIO(sigstate);
}

/*
 * xf86AddEnabledDevice --
 *    
 */
void
xf86AddEnabledDevice(InputInfoPtr pInfo)
{
    if (!xf86InstallSIGIOHandler (pInfo->fd, xf86SigioReadInput, pInfo)) {
	AddEnabledDevice(pInfo->fd);
    }
}

/*
 * xf86RemoveEnabledDevice --
 *    
 */
void
xf86RemoveEnabledDevice(InputInfoPtr pInfo)
{
    if (!xf86RemoveSIGIOHandler (pInfo->fd)) {
	RemoveEnabledDevice(pInfo->fd);
    }
}

static int *xf86SignalIntercept = NULL;

void
xf86InterceptSignals(int *signo)
{
    if ((xf86SignalIntercept = signo))
	*signo = -1;
}

/*
 * xf86SigHandler --
 *    Catch unexpected signals and exit or continue cleanly.
 */
void
xf86SigHandler(int signo)
{
  if (xf86SignalIntercept && (*xf86SignalIntercept < 0)) {
    /* Re-arm handler just in case */
    (void) signal(signo, xf86SigHandler);
    *xf86SignalIntercept = signo;
    return;
  }

  signal(signo,SIG_IGN);
  xf86Info.caughtSignal = TRUE;
#ifdef XF86BIGFONT
  XF86BigfontCleanup();
#endif
#if defined(XFree86LOADER)
  if (xf86Initialising)
      LoaderCheckUnresolved(LD_RESOLV_IFDONE);
  ErrorF("\n"
	 "   *** If unresolved symbols were reported above, they might not\n"
	 "   *** be the reason for the server aborting.\n");
#endif
  FatalError("Caught signal %d.  Server aborting\n", signo);
}

#ifdef MEMDEBUG
void
xf86SigMemDebug(int signo)
{
    CheckMemory();
    (void) signal(signo, xf86SigMemDebug);
    return;
}
#endif

/*
 * xf86VTSwitch --
 *      Handle requests for switching the vt.
 */
static void
xf86VTSwitch()
{
  int i, prevSIGIO;
  InputInfoPtr pInfo;
  IHPtr ih;

#ifdef DEBUG
  ErrorF("xf86VTSwitch()\n");
#endif
  
#ifdef XFreeXDGA
  if(!DGAVTSwitch())
	return;
#endif

  /*
   * Since all screens are currently all in the same state it is sufficient
   * check the first.  This might change in future.
   */
  if (xf86Screens[0]->vtSema) {

#ifdef DEBUG
    ErrorF("xf86VTSwitch: Leaving, xf86Exiting is %s\n",
	   BOOLTOSTRING((dispatchException & DE_TERMINATE) ? TRUE : FALSE));
#endif
    for (i = 0; i < xf86NumScreens; i++) {
      if (!(dispatchException & DE_TERMINATE))
	if (xf86Screens[i]->EnableDisableFBAccess)
	  (*xf86Screens[i]->EnableDisableFBAccess) (i, FALSE);
    }
#if !defined(__UNIXOS2__)

    /* 
     * Keep the order: Disable Device > LeaveVT
     *                        EnterVT > EnableDevice 
     */
    DisableDevice((DeviceIntPtr)xf86Info.pKeyboard);
    pInfo = xf86InputDevs;
    while (pInfo) {
      DisableDevice(pInfo->dev);
      pInfo = pInfo->next;
    }
#endif /* !__UNIXOS2__ */
    xf86EnterServerState(SETUP);
    for (i = 0; i < xf86NumScreens; i++) {
      xf86Screens[i]->LeaveVT(i, 0);
    }
    for (ih = InputHandlers; ih; ih = ih->next)
      xf86DisableInputHandler(ih);
    xf86AccessLeave();      /* We need this here, otherwise */
    xf86AccessLeaveState(); /* console won't be restored    */

    if (!xf86VTSwitchAway()) {
      /*
       * switch failed 
       */

#ifdef DEBUG
      ErrorF("xf86VTSwitch: Leave failed\n");
#endif
      prevSIGIO = xf86BlockSIGIO();
      xf86AccessEnter();
      xf86EnterServerState(SETUP);
      for (i = 0; i < xf86NumScreens; i++) {
	if (!xf86Screens[i]->EnterVT(i, 0))
	  FatalError("EnterVT failed for screen %d\n", i);
      }
      xf86EnterServerState(OPERATING);
      if (!(dispatchException & DE_TERMINATE)) {
	for (i = 0; i < xf86NumScreens; i++) {
	  if (xf86Screens[i]->EnableDisableFBAccess)
	    (*xf86Screens[i]->EnableDisableFBAccess) (i, TRUE);
	}
      }
      SaveScreens(SCREEN_SAVER_FORCER, ScreenSaverReset);

#if !defined(__UNIXOS2__)
      EnableDevice((DeviceIntPtr)xf86Info.pKeyboard);
      pInfo = xf86InputDevs;
      while (pInfo) {
	EnableDevice(pInfo->dev);
	pInfo = pInfo->next;
      }
#endif /* !__UNIXOS2__ */
      for (ih = InputHandlers; ih; ih = ih->next)
        xf86EnableInputHandler(ih);

      xf86UnblockSIGIO(prevSIGIO);

    } else {
	  if (xf86OSPMClose)
	      xf86OSPMClose();
	  xf86OSPMClose = NULL;

	for (i = 0; i < xf86NumScreens; i++) {
 	    /*
 	     * zero all access functions to
 	     * trap calls when switched away.
 	     */
	    xf86Screens[i]->vtSema = FALSE;
	    xf86Screens[i]->access = NULL;
	    xf86Screens[i]->busAccess = NULL;
	}
      xf86DisableIO();
    }
  } else {

#ifdef DEBUG
    ErrorF("xf86VTSwitch: Entering\n");
#endif
    if (!xf86VTSwitchTo()) return;

    prevSIGIO = xf86BlockSIGIO();
    xf86OSPMClose = xf86OSPMOpen();

    xf86EnableIO();
    xf86AccessEnter();
    xf86EnterServerState(SETUP);
    for (i = 0; i < xf86NumScreens; i++) {
      xf86Screens[i]->vtSema = TRUE;
      if (!xf86Screens[i]->EnterVT(i, 0))
	  FatalError("EnterVT failed for screen %d\n", i);
    }
    xf86EnterServerState(OPERATING);
    for (i = 0; i < xf86NumScreens; i++) {
      if (xf86Screens[i]->EnableDisableFBAccess)
	(*xf86Screens[i]->EnableDisableFBAccess)(i, TRUE);
    }

    /* Turn screen saver off when switching back */
    SaveScreens(SCREEN_SAVER_FORCER,ScreenSaverReset);

#if !defined(__UNIXOS2__)
    EnableDevice((DeviceIntPtr)xf86Info.pKeyboard);
    pInfo = xf86InputDevs;
    while (pInfo) {
      EnableDevice(pInfo->dev);
      pInfo = pInfo->next;
    }
#endif /* !__UNIXOS2__ */
    
    for (ih = InputHandlers; ih; ih = ih->next)
      xf86EnableInputHandler(ih);

    xf86UnblockSIGIO(prevSIGIO);
  }
}


/* Input handler registration */

pointer
xf86AddInputHandler(int fd, InputHandlerProc proc, pointer data)
{
    IHPtr ih;

    if (fd < 0 || !proc)
	return NULL;

    ih = xcalloc(sizeof(*ih), 1);
    if (!ih)
	return NULL;

    ih->fd = fd;
    ih->ihproc = proc;
    ih->data = data;
    ih->enabled = TRUE;

    ih->next = InputHandlers;
    InputHandlers = ih;

    AddEnabledDevice(fd);

    return ih;
}

int
xf86RemoveInputHandler(pointer handler)
{
    IHPtr ih, p;
    int fd;
    
    if (!handler)
	return -1;

    ih = handler;
    fd = ih->fd;
    
    if (ih->fd >= 0)
	RemoveEnabledDevice(ih->fd);

    if (ih == InputHandlers)
	InputHandlers = ih->next;
    else {
	p = InputHandlers;
	while (p && p->next != ih)
	    p = p->next;
	if (ih)
	    p->next = ih->next;
    }
    xfree(ih);
    return fd;
}

void
xf86DisableInputHandler(pointer handler)
{
    IHPtr ih;

    if (!handler)
	return;

    ih = handler;
    ih->enabled = FALSE;
    if (ih->fd >= 0)
	RemoveEnabledDevice(ih->fd);
}

void
xf86EnableInputHandler(pointer handler)
{
    IHPtr ih;

    if (!handler)
	return;

    ih = handler;
    ih->enabled = TRUE;
    if (ih->fd >= 0)
	AddEnabledDevice(ih->fd);
}

/*
 * As used currently by the DRI, the return value is ignored.
 */
Bool
xf86EnableVTSwitch(Bool new)
{
    static Bool def = TRUE;
    Bool old;

    old = VTSwitchEnabled;
    if (!new) {
	/* Disable VT switching */
	def = VTSwitchEnabled;
	VTSwitchEnabled = FALSE;
    } else {
	/* Restore VT switching to default */
	VTSwitchEnabled = def;
    }
    return old;
}

#ifdef XTESTEXT1

void
XTestGetPointerPos(short *fmousex, short *fmousey)
{
  int x,y;

  miPointerPosition(&x, &y);
  *fmousex = x;
  *fmousey = y;
}



void
XTestJumpPointer(int jx, int jy, int dev_type)
{
  miPointerAbsoluteCursor(jx, jy, GetTimeInMillis() );
}

void
XTestGenerateEvent(int dev_type, int keycode, int keystate, int mousex,
		   int mousey)
{
  xEvent tevent;
  
  tevent.u.u.type = (dev_type == XE_POINTER) ?
    (keystate == XTestKEY_UP) ? ButtonRelease : ButtonPress :
      (keystate == XTestKEY_UP) ? KeyRelease : KeyPress;
  tevent.u.u.detail = keycode;
  tevent.u.keyButtonPointer.rootX = mousex;
  tevent.u.keyButtonPointer.rootY = mousey;
  tevent.u.keyButtonPointer.time = xf86Info.lastEventTime = GetTimeInMillis();
#ifdef XINPUT
  xf86eqEnqueue(&tevent);
#else
  mieqEnqueue(&tevent);
#endif
  xf86Info.inputPending = TRUE;               /* virtual event */
}

#endif /* XTESTEXT1 */

#ifdef WSCONS_SUPPORT

/* XXX Currently XKB is mandatory. */

extern int WSKbdToKeycode(int);

void
xf86PostWSKbdEvent(struct wscons_event *event)
{
  int type = event->type;
  int value = event->value;
  unsigned int keycode;
  int blocked;
  
  if (type == WSCONS_EVENT_KEY_UP || type == WSCONS_EVENT_KEY_DOWN) {
    Bool down = (type == WSCONS_EVENT_KEY_DOWN ? TRUE : FALSE);

    /* map the scancodes to standard XFree86 scancode */  	
    keycode = WSKbdToKeycode(value);
    if (!down) keycode |= 0x80;
    /* It seems better to block SIGIO there */
    blocked = xf86BlockSIGIO();
    xf86PostKbdEvent(keycode);
    xf86UnblockSIGIO(blocked);
  }
}
#endif /* WSCONS_SUPPORT */