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
|
/* $NetBSD: kbd.c,v 1.26 2000/03/24 11:46:47 hannken Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
* @(#)kbd.c 8.2 (Berkeley) 10/30/93
*/
/*
* Keyboard driver (/dev/kbd -- note that we do not have minor numbers
* [yet?]). Translates incoming bytes to ASCII or to `firm_events' and
* passes them up to the appropriate reader.
*/
/*
* This is the "slave" driver that will be attached to
* the "zsc" driver for a Sun keyboard.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/signal.h>
#include <sys/signalvar.h>
#include <sys/time.h>
#include <sys/syslog.h>
#include <sys/select.h>
#include <sys/poll.h>
#include <dev/ic/z8530reg.h>
#include <machine/z8530var.h>
#include <machine/vuid_event.h>
#include <machine/kbd.h>
#include <machine/kbio.h>
#include <dev/sun/event_var.h>
#include <dev/sun/kbd_xlate.h>
#include <dev/sun/kbdvar.h>
#include "locators.h"
/*
* Ideas:
* /dev/kbd is not a tty (plain device)
*/
/* Prototypes */
static void kbd_new_layout __P((struct kbd_softc *));
static void kbd_repeat __P((void *));
static void kbd_set_leds __P((struct kbd_softc *, int));
static void kbd_update_leds __P((struct kbd_softc *));
static void kbd_was_reset __P((struct kbd_softc *));
static int kbd_drain_tx __P((struct kbd_softc *));
static int kbd_iopen __P((struct kbd_softc *));
static int kbd_iclose __P((struct kbd_softc *));
cdev_decl(kbd); /* open, close, read, write, ioctl, stop, ... */
extern struct cfdriver kbd_cd;
/****************************************************************
* Entry points for /dev/kbd
* (open,close,read,write,...)
****************************************************************/
/*
* Open:
* Check exclusion, open actual device (_iopen),
* setup event channel, clear ASCII repeat stuff.
*/
int
kbdopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
struct kbd_softc *k;
int error, unit;
unit = minor(dev);
if (unit >= kbd_cd.cd_ndevs)
return (ENXIO);
k = kbd_cd.cd_devs[unit];
if (k == NULL)
return (ENXIO);
/* Exclusive open required for /dev/kbd */
if (k->k_events.ev_io)
return (EBUSY);
k->k_events.ev_io = p;
if ((error = kbd_iopen(k)) != 0) {
k->k_events.ev_io = NULL;
return (error);
}
ev_init(&k->k_events);
k->k_evmode = 1; /* XXX: OK? */
if (k->k_repeating) {
k->k_repeating = 0;
callout_stop(&k->k_repeat_ch);
}
return (0);
}
/*
* Close:
* Turn off event mode, dump the queue, and close the keyboard
* unless it is supplying console input.
*/
int
kbdclose(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
struct kbd_softc *k;
k = kbd_cd.cd_devs[minor(dev)];
k->k_evmode = 0;
ev_fini(&k->k_events);
k->k_events.ev_io = NULL;
return (0);
}
int
kbdread(dev, uio, flags)
dev_t dev;
struct uio *uio;
int flags;
{
struct kbd_softc *k;
k = kbd_cd.cd_devs[minor(dev)];
return (ev_read(&k->k_events, uio, flags));
}
/* this routine should not exist, but is convenient to write here for now */
int
kbdwrite(dev, uio, flags)
dev_t dev;
struct uio *uio;
int flags;
{
return (EOPNOTSUPP);
}
int
kbdpoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
struct kbd_softc *k;
k = kbd_cd.cd_devs[minor(dev)];
return (ev_poll(&k->k_events, events, p));
}
static int kbd_iockeymap __P((struct kbd_state *ks,
u_long cmd, struct kiockeymap *kio));
static int kbd_iocsled(struct kbd_softc *k, char *data);
#ifdef KIOCGETKEY
static int kbd_oldkeymap __P((struct kbd_state *ks,
u_long cmd, struct okiockey *okio));
#endif
int
kbdioctl(dev, cmd, data, flag, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct kbd_softc *k;
struct kbd_state *ks;
int error = 0;
k = kbd_cd.cd_devs[minor(dev)];
ks = &k->k_state;
switch (cmd) {
case KIOCTRANS: /* Set translation mode */
/* We only support "raw" mode on /dev/kbd */
if (*(int *)data != TR_UNTRANS_EVENT)
error = EINVAL;
break;
case KIOCGTRANS: /* Get translation mode */
/* We only support "raw" mode on /dev/kbd */
*(int *)data = TR_UNTRANS_EVENT;
break;
#ifdef KIOCGETKEY
case KIOCGETKEY: /* Get keymap entry (old format) */
error = kbd_oldkeymap(ks, cmd, (struct okiockey *)data);
break;
#endif KIOCGETKEY */
case KIOCSKEY: /* Set keymap entry */
/* fallthrough */
case KIOCGKEY: /* Get keymap entry */
error = kbd_iockeymap(ks, cmd, (struct kiockeymap *)data);
break;
case KIOCCMD: /* Send a command to the keyboard */
error = kbd_docmd(*(int *)data, 1);
break;
case KIOCTYPE: /* Get keyboard type */
*(int *)data = ks->kbd_id;
break;
case KIOCSDIRECT: /* where to send input */
k->k_evmode = *(int *)data;
break;
case KIOCLAYOUT: /* Get keyboard layout */
*(int *)data = ks->kbd_layout;
break;
case KIOCSLED:
error = kbd_iocsled(k, (char *)data);
break;
case KIOCGLED:
*(char *)data = ks->kbd_leds;
break;
case FIONBIO: /* we will remove this someday (soon???) */
break;
case FIOASYNC:
k->k_events.ev_async = *(int *)data != 0;
break;
case TIOCSPGRP:
if (*(int *)data != k->k_events.ev_io->p_pgid)
error = EPERM;
break;
default:
error = ENOTTY;
break;
}
return (error);
}
/****************************************************************
* ioctl helpers
****************************************************************/
/*
* Get/Set keymap entry
*/
static int
kbd_iockeymap(ks, cmd, kio)
struct kbd_state *ks;
u_long cmd;
struct kiockeymap *kio;
{
u_short *km;
u_int station;
switch (kio->kio_tablemask) {
case KIOC_NOMASK:
km = ks->kbd_k.k_normal;
break;
case KIOC_SHIFTMASK:
km = ks->kbd_k.k_shifted;
break;
case KIOC_CTRLMASK:
km = ks->kbd_k.k_control;
break;
case KIOC_UPMASK:
km = ks->kbd_k.k_release;
break;
default:
/* Silently ignore unsupported masks */
return (0);
}
/* Range-check the table position. */
station = kio->kio_station;
if (station >= KEYMAP_SIZE)
return (EINVAL);
switch (cmd) {
case KIOCGKEY: /* Get keymap entry */
kio->kio_entry = km[station];
break;
case KIOCSKEY: /* Set keymap entry */
km[station] = kio->kio_entry;
break;
default:
return(ENOTTY);
}
return (0);
}
#ifdef KIOCGETKEY
/*
* Get/Set keymap entry,
* old format (compatibility)
*/
int
kbd_oldkeymap(ks, cmd, kio)
struct kbd_state *ks;
u_long cmd;
struct okiockey *kio;
{
int error = 0;
switch (cmd) {
case KIOCGETKEY:
if (kio->kio_station == 118) {
/*
* This is X11 asking if a type 3 keyboard is
* really a type 3 keyboard. Say yes, it is,
* by reporting key station 118 as a "hole".
* Note old (SunOS 3.5) definition of HOLE!
*/
kio->kio_entry = 0xA2;
break;
}
/* fall through */
default:
error = ENOTTY;
break;
}
return (error);
}
#endif /* KIOCGETKEY */
/*
* keyboard command ioctl
* ``unimplemented commands are ignored'' (blech)
* This is also export to the fb driver.
*/
int
kbd_docmd(cmd, isuser)
int cmd;
int isuser;
{
struct kbd_softc *k;
struct kbd_state *ks;
int error, s;
error = 0;
k = kbd_cd.cd_devs[0];
ks = &k->k_state;
switch (cmd) {
case KBD_CMD_BELL:
case KBD_CMD_NOBELL:
/* Supported by type 2, 3, and 4 keyboards */
break;
case KBD_CMD_CLICK:
case KBD_CMD_NOCLICK:
/* Unsupported by type 2 keyboards */
if (ks->kbd_id <= KB_SUN2)
return (0);
ks->kbd_click = (cmd == KBD_CMD_CLICK);
break;
default:
return (0);
}
s = spltty();
if (isuser)
error = kbd_drain_tx(k);
if (error == 0) {
kbd_output(k, cmd);
kbd_start_tx(k);
}
splx(s);
return (error);
}
/*
* Set LEDs ioctl.
*/
static int
kbd_iocsled(k, data)
struct kbd_softc *k;
char *data;
{
int leds, error, s;
leds = *data;
s = spltty();
error = kbd_drain_tx(k);
if (error == 0) {
kbd_set_leds(k, leds);
}
splx(s);
return (error);
}
/****************************************************************
* middle layers:
* - keysym to ASCII sequence
* - raw key codes to keysym
****************************************************************/
static void kbd_input_string __P((struct kbd_softc *, char *));
static void kbd_input_funckey __P((struct kbd_softc *, int));
static int kbd_input_keysym __P((struct kbd_softc *, int));
/*
* Initialization done by either kdcninit or kbd_iopen
*/
void
kbd_xlate_init(ks)
struct kbd_state *ks;
{
struct keyboard *ktbls;
int id;
id = ks->kbd_id;
if (id < KBD_MIN_TYPE)
id = KBD_MIN_TYPE;
if (id > kbd_max_type)
id = kbd_max_type;
ktbls = keyboards[id];
ks->kbd_k = *ktbls; /* struct assignment */
ks->kbd_modbits = 0;
}
/*
* Turn keyboard up/down codes into a KEYSYM.
* Note that the "kd" driver uses this too!
*/
int
kbd_code_to_keysym(ks, c)
struct kbd_state *ks;
int c;
{
u_short *km;
int keysym;
/*
* Get keymap pointer. One of these:
* release, control, shifted, normal, ...
*/
if (KEY_UP(c))
km = ks->kbd_k.k_release;
else if (ks->kbd_modbits & KBMOD_CTRL_MASK)
km = ks->kbd_k.k_control;
else if (ks->kbd_modbits & KBMOD_SHIFT_MASK)
km = ks->kbd_k.k_shifted;
else
km = ks->kbd_k.k_normal;
if (km == NULL) {
/*
* Do not know how to translate yet.
* We will find out when a RESET comes along.
*/
return (KEYSYM_NOP);
}
keysym = km[KEY_CODE(c)];
/*
* Post-processing for Caps-lock
*/
if ((ks->kbd_modbits & (1 << KBMOD_CAPSLOCK)) &&
(KEYSYM_CLASS(keysym) == KEYSYM_ASCII) )
{
if (('a' <= keysym) && (keysym <= 'z'))
keysym -= ('a' - 'A');
}
/*
* Post-processing for Num-lock. All "function"
* keysyms get indirected through another table.
* (XXX: Only if numlock on. Want off also!)
*/
if ((ks->kbd_modbits & (1 << KBMOD_NUMLOCK)) &&
(KEYSYM_CLASS(keysym) == KEYSYM_FUNC) )
{
keysym = kbd_numlock_map[keysym & 0x3F];
}
return (keysym);
}
void
kbd_input_string(k, str)
struct kbd_softc *k;
char *str;
{
while (*str) {
(*k->k_cc->cc_upstream)(*str);
str++;
}
}
void
kbd_input_funckey(k, keysym)
struct kbd_softc *k;
int keysym;
{
int n;
char str[12];
/*
* Format the F-key sequence and send as a string.
* XXX: Ugly compatibility mappings.
*/
n = 0xC0 + (keysym & 0x3F);
sprintf(str, "\033[%dz", n);
kbd_input_string(k, str);
}
/*
* This is called by kbd_input_raw() or by kb_repeat()
* to deliver ASCII input. Called at spltty().
*
* Return zero on success, else the keysym that we
* could not handle (so the caller may complain).
*/
int
kbd_input_keysym(k, keysym)
struct kbd_softc *k;
int keysym;
{
struct kbd_state *ks = &k->k_state;
int data;
switch (KEYSYM_CLASS(keysym)) {
case KEYSYM_ASCII:
data = KEYSYM_DATA(keysym);
if (ks->kbd_modbits & KBMOD_META_MASK)
data |= 0x80;
(*k->k_cc->cc_upstream)(data);
break;
case KEYSYM_STRING:
data = keysym & 0xF;
kbd_input_string(k, kbd_stringtab[data]);
break;
case KEYSYM_FUNC:
kbd_input_funckey(k, keysym);
break;
case KEYSYM_CLRMOD:
data = 1 << (keysym & 0x1F);
ks->kbd_modbits &= ~data;
break;
case KEYSYM_SETMOD:
data = 1 << (keysym & 0x1F);
ks->kbd_modbits |= data;
break;
case KEYSYM_INVMOD:
data = 1 << (keysym & 0x1F);
ks->kbd_modbits ^= data;
kbd_update_leds(k);
break;
case KEYSYM_ALL_UP:
ks->kbd_modbits &= ~0xFFFF;
break;
case KEYSYM_SPECIAL:
if (keysym == KEYSYM_NOP)
break;
/* fall through */
default:
/* We could not handle it. */
return (keysym);
}
return (0);
}
/*
* This is the autorepeat timeout function.
* Called at splsoftclock().
*/
static void
kbd_repeat(arg)
void *arg;
{
struct kbd_softc *k = (struct kbd_softc *)arg;
int s = spltty();
if (k->k_repeating && k->k_repeatsym >= 0) {
(void)kbd_input_keysym(k, k->k_repeatsym);
callout_reset(&k->k_repeat_ch, k->k_repeat_step,
kbd_repeat, k);
}
splx(s);
}
/*
* Called by our kbd_softint() routine on input,
* which passes the raw hardware scan codes.
* Called at spltty()
*/
void
kbd_input_raw(k, c)
struct kbd_softc *k;
int c;
{
struct kbd_state *ks = &k->k_state;
struct firm_event *fe;
int put, keysym;
/* XXX - Input errors already handled. */
/* Are we expecting special input? */
if (ks->kbd_expect) {
if (ks->kbd_expect & KBD_EXPECT_IDCODE) {
/* We read a KBD_RESET last time. */
ks->kbd_id = c;
kbd_was_reset(k);
}
if (ks->kbd_expect & KBD_EXPECT_LAYOUT) {
/* We read a KBD_LAYOUT last time. */
ks->kbd_layout = c;
kbd_new_layout(k);
}
ks->kbd_expect = 0;
return;
}
/* Is this one of the "special" input codes? */
if (KBD_SPECIAL(c)) {
switch (c) {
case KBD_RESET:
ks->kbd_expect |= KBD_EXPECT_IDCODE;
/* Fake an "all-up" to resync. translation. */
c = KBD_IDLE;
break;
case KBD_LAYOUT:
ks->kbd_expect |= KBD_EXPECT_LAYOUT;
return;
case KBD_ERROR:
log(LOG_WARNING, "%s: received error indicator\n",
k->k_dev.dv_xname);
return;
case KBD_IDLE:
/* Let this go to the translator. */
break;
}
}
/*
* If /dev/kbd is not connected in event mode,
* translate and send upstream (to console).
*/
if (!k->k_evmode && k->k_isconsole) {
/* Any input stops auto-repeat (i.e. key release). */
if (k->k_repeating) {
k->k_repeating = 0;
callout_stop(&k->k_repeat_ch);
}
/* Translate this code to a keysym */
keysym = kbd_code_to_keysym(ks, c);
/* Pass up to the next layer. */
if (kbd_input_keysym(k, keysym)) {
log(LOG_WARNING, "%s: code=0x%x with mod=0x%x"
" produced unexpected keysym 0x%x\n",
k->k_dev.dv_xname, c,
ks->kbd_modbits, keysym);
/* No point in auto-repeat here. */
return;
}
/* Does this symbol get auto-repeat? */
if (KEYSYM_NOREPEAT(keysym))
return;
/* Setup for auto-repeat after initial delay. */
k->k_repeating = 1;
k->k_repeatsym = keysym;
callout_reset(&k->k_repeat_ch, k->k_repeat_start,
kbd_repeat, k);
return;
}
/*
* IDLEs confuse the MIT X11R4 server badly, so we must drop them.
* This is bad as it means the server will not automatically resync
* on all-up IDLEs, but I did not drop them before, and the server
* goes crazy when it comes time to blank the screen....
*/
if (c == KBD_IDLE)
return;
/*
* Keyboard is generating events. Turn this keystroke into an
* event and put it in the queue. If the queue is full, the
* keystroke is lost (sorry!).
*/
put = k->k_events.ev_put;
fe = &k->k_events.ev_q[put];
put = (put + 1) % EV_QSIZE;
if (put == k->k_events.ev_get) {
log(LOG_WARNING, "%s: event queue overflow\n",
k->k_dev.dv_xname); /* ??? */
return;
}
fe->id = KEY_CODE(c);
fe->value = KEY_UP(c) ? VKEY_UP : VKEY_DOWN;
fe->time = time;
k->k_events.ev_put = put;
EV_WAKEUP(&k->k_events);
}
/****************************************************************/
/*
* Open/close routines called upon opening /dev/console
* if we serve console input.
*/
int
kbd_cc_open(cc)
struct cons_channel *cc;
{
struct kbd_softc *k = (struct kbd_softc *)cc->cc_dev;
return (kbd_iopen(k));
}
int
kbd_cc_close(cc)
struct cons_channel *cc;
{
struct kbd_softc *k = (struct kbd_softc *)cc->cc_dev;
return (kbd_iclose(k));
}
/*
* Initialization to be done at first open.
* This is called from kbdopen() or kd_cc_open()
* Called with user context.
*/
int
kbd_iopen(k)
struct kbd_softc *k;
{
struct kbd_state *ks;
int error, s;
if (k == NULL)
return (ENXIO);
ks = &k->k_state;
/* Tolerate extra calls. */
if (k->k_isopen)
return (0);
s = spltty();
/* Reset the keyboard and find out its type. */
kbd_output(k, KBD_CMD_RESET);
kbd_start_tx(k);
kbd_drain_tx(k);
/* The wakeup for this is in kbd_was_reset(). */
error = tsleep((caddr_t)&ks->kbd_id,
PZERO | PCATCH, devopn, hz);
if (error == EWOULDBLOCK) { /* no response */
error = 0;
log(LOG_ERR, "%s: reset failed\n",
k->k_dev.dv_xname);
/*
* Allow the open anyway (to keep getty happy)
* but assume the "least common denominator".
*/
ks->kbd_id = KB_SUN2;
}
/* Initialize the table pointers for this type. */
kbd_xlate_init(ks);
/* Earlier than type 4 does not know "layout". */
if (ks->kbd_id < KB_SUN4)
goto out;
/* Ask for the layout. */
kbd_output(k, KBD_CMD_GETLAYOUT);
kbd_start_tx(k);
kbd_drain_tx(k);
/* The wakeup for this is in kbd_new_layout(). */
error = tsleep((caddr_t)&ks->kbd_layout,
PZERO | PCATCH, devopn, hz);
if (error == EWOULDBLOCK) { /* no response */
error = 0;
log(LOG_ERR, "%s: no response to get_layout\n",
k->k_dev.dv_xname);
ks->kbd_layout = 0;
}
out:
splx(s);
if (error == 0)
k->k_isopen = 1;
return (error);
}
int
kbd_iclose(k)
struct kbd_softc *k;
{
/* For now: */ return (0);
}
/*
* Called by kbd_input_raw, at spltty()
*/
static void
kbd_was_reset(k)
struct kbd_softc *k;
{
struct kbd_state *ks = &k->k_state;
/*
* On first identification, wake up anyone waiting for type
* and set up the table pointers.
*/
wakeup((caddr_t)&ks->kbd_id);
/* Restore keyclick, if necessary */
switch (ks->kbd_id) {
case KB_SUN2:
/* Type 2 keyboards don't support keyclick */
break;
case KB_SUN3:
/* Type 3 keyboards come up with keyclick on */
if (!ks->kbd_click) {
/* turn off the click */
kbd_output(k, KBD_CMD_NOCLICK);
kbd_start_tx(k);
}
break;
case KB_SUN4:
/* Type 4 keyboards come up with keyclick off */
if (ks->kbd_click) {
/* turn on the click */
kbd_output(k, KBD_CMD_CLICK);
kbd_start_tx(k);
}
break;
}
/* LEDs are off after reset. */
ks->kbd_leds = 0;
}
/*
* Called by kbd_input_raw, at spltty()
*/
static void
kbd_new_layout(k)
struct kbd_softc *k;
{
struct kbd_state *ks = &k->k_state;
/*
* On first identification, wake up anyone waiting for type
* and set up the table pointers.
*/
wakeup((caddr_t)&ks->kbd_layout);
/* XXX: switch decoding tables? */
}
/*
* Wait for output to finish.
* Called at spltty(). Has user context.
*/
static int
kbd_drain_tx(k)
struct kbd_softc *k;
{
int error;
error = 0;
while (k->k_txflags & K_TXBUSY) {
k->k_txflags |= K_TXWANT;
error = tsleep((caddr_t)&k->k_txflags,
PZERO | PCATCH, "kbdout", 0);
}
return (error);
}
/*
* Enqueue some output for the keyboard
* Called at spltty().
*/
void
kbd_output(k, c)
struct kbd_softc *k;
int c; /* the data */
{
int put;
put = k->k_tbput;
k->k_tbuf[put] = (u_char)c;
put = (put + 1) & KBD_TX_RING_MASK;
/* Would overrun if increment makes (put==get). */
if (put == k->k_tbget) {
log(LOG_WARNING, "%s: output overrun\n",
k->k_dev.dv_xname);
} else {
/* OK, really increment. */
k->k_tbput = put;
}
}
/*
* Start the sending data from the output queue
* Called at spltty().
*/
void
kbd_start_tx(k)
struct kbd_softc *k;
{
int get;
u_char c;
if (k->k_txflags & K_TXBUSY)
return;
/* Is there anything to send? */
get = k->k_tbget;
if (get == k->k_tbput) {
/* Nothing to send. Wake drain waiters. */
if (k->k_txflags & K_TXWANT) {
k->k_txflags &= ~K_TXWANT;
wakeup((caddr_t)&k->k_txflags);
}
return;
}
/* Have something to send. */
c = k->k_tbuf[get];
get = (get + 1) & KBD_TX_RING_MASK;
k->k_tbget = get;
k->k_txflags |= K_TXBUSY;
k->k_write_data(k, c);
}
/*
* Called at spltty by:
* kbd_update_leds, kbd_iocsled
*/
static void
kbd_set_leds(k, new_leds)
struct kbd_softc *k;
int new_leds;
{
struct kbd_state *ks = &k->k_state;
/* Don't send unless state changes. */
if (ks->kbd_leds == new_leds)
return;
ks->kbd_leds = new_leds;
/* Only type 4 and later has LEDs anyway. */
if (ks->kbd_id < KB_SUN4)
return;
kbd_output(k, KBD_CMD_SETLED);
kbd_output(k, new_leds);
kbd_start_tx(k);
}
/*
* Called at spltty by:
* kbd_input_keysym
*/
static void
kbd_update_leds(k)
struct kbd_softc *k;
{
struct kbd_state *ks = &k->k_state;
char leds;
leds = ks->kbd_leds;
leds &= ~(LED_CAPS_LOCK|LED_NUM_LOCK);
if (ks->kbd_modbits & (1 << KBMOD_CAPSLOCK))
leds |= LED_CAPS_LOCK;
if (ks->kbd_modbits & (1 << KBMOD_NUMLOCK))
leds |= LED_NUM_LOCK;
kbd_set_leds(k, leds);
}
|