FreeBSD/Linux Kernel Cross Reference
sys/dev/kbd/kbd.c
1 /*-
2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer as
10 * the first lines of this file unmodified.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD: releng/8.4/sys/dev/kbd/kbd.c 193512 2009-06-05 15:19:05Z ed $");
30
31 #include "opt_kbd.h"
32
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/malloc.h>
37 #include <sys/conf.h>
38 #include <sys/fcntl.h>
39 #include <sys/poll.h>
40 #include <sys/priv.h>
41 #include <sys/proc.h>
42 #include <sys/selinfo.h>
43 #include <sys/sysctl.h>
44 #include <sys/uio.h>
45
46 #include <sys/kbio.h>
47
48 #include <dev/kbd/kbdreg.h>
49
50 #define KBD_INDEX(dev) dev2unit(dev)
51
52 #define KB_QSIZE 512
53 #define KB_BUFSIZE 64
54
55 typedef struct genkbd_softc {
56 int gkb_flags; /* flag/status bits */
57 #define KB_ASLEEP (1 << 0)
58 struct selinfo gkb_rsel;
59 char gkb_q[KB_QSIZE]; /* input queue */
60 unsigned int gkb_q_start;
61 unsigned int gkb_q_length;
62 } genkbd_softc_t;
63
64 static SLIST_HEAD(, keyboard_driver) keyboard_drivers =
65 SLIST_HEAD_INITIALIZER(keyboard_drivers);
66
67 SET_DECLARE(kbddriver_set, const keyboard_driver_t);
68
69 /* local arrays */
70
71 /*
72 * We need at least one entry each in order to initialize a keyboard
73 * for the kernel console. The arrays will be increased dynamically
74 * when necessary.
75 */
76
77 static int keyboards = 1;
78 static keyboard_t *kbd_ini;
79 static keyboard_t **keyboard = &kbd_ini;
80 static keyboard_switch_t *kbdsw_ini;
81 keyboard_switch_t **kbdsw = &kbdsw_ini;
82
83 static int keymap_restrict_change;
84 SYSCTL_NODE(_hw, OID_AUTO, kbd, CTLFLAG_RD, 0, "kbd");
85 SYSCTL_INT(_hw_kbd, OID_AUTO, keymap_restrict_change, CTLFLAG_RW,
86 &keymap_restrict_change, 0, "restrict ability to change keymap");
87
88 #define ARRAY_DELTA 4
89
90 static int
91 kbd_realloc_array(void)
92 {
93 keyboard_t **new_kbd;
94 keyboard_switch_t **new_kbdsw;
95 int newsize;
96 int s;
97
98 s = spltty();
99 newsize = ((keyboards + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA;
100 new_kbd = malloc(sizeof(*new_kbd)*newsize, M_DEVBUF, M_NOWAIT|M_ZERO);
101 if (new_kbd == NULL) {
102 splx(s);
103 return (ENOMEM);
104 }
105 new_kbdsw = malloc(sizeof(*new_kbdsw)*newsize, M_DEVBUF,
106 M_NOWAIT|M_ZERO);
107 if (new_kbdsw == NULL) {
108 free(new_kbd, M_DEVBUF);
109 splx(s);
110 return (ENOMEM);
111 }
112 bcopy(keyboard, new_kbd, sizeof(*keyboard)*keyboards);
113 bcopy(kbdsw, new_kbdsw, sizeof(*kbdsw)*keyboards);
114 if (keyboards > 1) {
115 free(keyboard, M_DEVBUF);
116 free(kbdsw, M_DEVBUF);
117 }
118 keyboard = new_kbd;
119 kbdsw = new_kbdsw;
120 keyboards = newsize;
121 splx(s);
122
123 if (bootverbose)
124 printf("kbd: new array size %d\n", keyboards);
125
126 return (0);
127 }
128
129 /*
130 * Low-level keyboard driver functions
131 * Keyboard subdrivers, such as the AT keyboard driver and the USB keyboard
132 * driver, call these functions to initialize the keyboard_t structure
133 * and register it to the virtual keyboard driver `kbd'.
134 */
135
136 /* initialize the keyboard_t structure */
137 void
138 kbd_init_struct(keyboard_t *kbd, char *name, int type, int unit, int config,
139 int port, int port_size)
140 {
141 kbd->kb_flags = KB_NO_DEVICE; /* device has not been found */
142 kbd->kb_name = name;
143 kbd->kb_type = type;
144 kbd->kb_unit = unit;
145 kbd->kb_config = config & ~KB_CONF_PROBE_ONLY;
146 kbd->kb_led = 0; /* unknown */
147 kbd->kb_io_base = port;
148 kbd->kb_io_size = port_size;
149 kbd->kb_data = NULL;
150 kbd->kb_keymap = NULL;
151 kbd->kb_accentmap = NULL;
152 kbd->kb_fkeytab = NULL;
153 kbd->kb_fkeytab_size = 0;
154 kbd->kb_delay1 = KB_DELAY1; /* these values are advisory only */
155 kbd->kb_delay2 = KB_DELAY2;
156 kbd->kb_count = 0L;
157 bzero(kbd->kb_lastact, sizeof(kbd->kb_lastact));
158 }
159
160 void
161 kbd_set_maps(keyboard_t *kbd, keymap_t *keymap, accentmap_t *accmap,
162 fkeytab_t *fkeymap, int fkeymap_size)
163 {
164 kbd->kb_keymap = keymap;
165 kbd->kb_accentmap = accmap;
166 kbd->kb_fkeytab = fkeymap;
167 kbd->kb_fkeytab_size = fkeymap_size;
168 }
169
170 /* declare a new keyboard driver */
171 int
172 kbd_add_driver(keyboard_driver_t *driver)
173 {
174 if (SLIST_NEXT(driver, link))
175 return (EINVAL);
176 SLIST_INSERT_HEAD(&keyboard_drivers, driver, link);
177 return (0);
178 }
179
180 int
181 kbd_delete_driver(keyboard_driver_t *driver)
182 {
183 SLIST_REMOVE(&keyboard_drivers, driver, keyboard_driver, link);
184 SLIST_NEXT(driver, link) = NULL;
185 return (0);
186 }
187
188 /* register a keyboard and associate it with a function table */
189 int
190 kbd_register(keyboard_t *kbd)
191 {
192 const keyboard_driver_t **list;
193 const keyboard_driver_t *p;
194 keyboard_t *mux;
195 keyboard_info_t ki;
196 int index;
197
198 mux = kbd_get_keyboard(kbd_find_keyboard("kbdmux", -1));
199
200 for (index = 0; index < keyboards; ++index) {
201 if (keyboard[index] == NULL)
202 break;
203 }
204 if (index >= keyboards) {
205 if (kbd_realloc_array())
206 return (-1);
207 }
208
209 kbd->kb_index = index;
210 KBD_UNBUSY(kbd);
211 KBD_VALID(kbd);
212 kbd->kb_active = 0; /* disabled until someone calls kbd_enable() */
213 kbd->kb_token = NULL;
214 kbd->kb_callback.kc_func = NULL;
215 kbd->kb_callback.kc_arg = NULL;
216
217 SLIST_FOREACH(p, &keyboard_drivers, link) {
218 if (strcmp(p->name, kbd->kb_name) == 0) {
219 keyboard[index] = kbd;
220 kbdsw[index] = p->kbdsw;
221
222 if (mux != NULL) {
223 bzero(&ki, sizeof(ki));
224 strcpy(ki.kb_name, kbd->kb_name);
225 ki.kb_unit = kbd->kb_unit;
226
227 kbdd_ioctl(mux, KBADDKBD, (caddr_t) &ki);
228 }
229
230 return (index);
231 }
232 }
233 SET_FOREACH(list, kbddriver_set) {
234 p = *list;
235 if (strcmp(p->name, kbd->kb_name) == 0) {
236 keyboard[index] = kbd;
237 kbdsw[index] = p->kbdsw;
238
239 if (mux != NULL) {
240 bzero(&ki, sizeof(ki));
241 strcpy(ki.kb_name, kbd->kb_name);
242 ki.kb_unit = kbd->kb_unit;
243
244 kbdd_ioctl(mux, KBADDKBD, (caddr_t) &ki);
245 }
246
247 return (index);
248 }
249 }
250
251 return (-1);
252 }
253
254 int
255 kbd_unregister(keyboard_t *kbd)
256 {
257 int error;
258 int s;
259
260 if ((kbd->kb_index < 0) || (kbd->kb_index >= keyboards))
261 return (ENOENT);
262 if (keyboard[kbd->kb_index] != kbd)
263 return (ENOENT);
264
265 s = spltty();
266 if (KBD_IS_BUSY(kbd)) {
267 error = (*kbd->kb_callback.kc_func)(kbd, KBDIO_UNLOADING,
268 kbd->kb_callback.kc_arg);
269 if (error) {
270 splx(s);
271 return (error);
272 }
273 if (KBD_IS_BUSY(kbd)) {
274 splx(s);
275 return (EBUSY);
276 }
277 }
278 KBD_INVALID(kbd);
279 keyboard[kbd->kb_index] = NULL;
280 kbdsw[kbd->kb_index] = NULL;
281
282 splx(s);
283 return (0);
284 }
285
286 /* find a funciton table by the driver name */
287 keyboard_switch_t
288 *kbd_get_switch(char *driver)
289 {
290 const keyboard_driver_t **list;
291 const keyboard_driver_t *p;
292
293 SLIST_FOREACH(p, &keyboard_drivers, link) {
294 if (strcmp(p->name, driver) == 0)
295 return (p->kbdsw);
296 }
297 SET_FOREACH(list, kbddriver_set) {
298 p = *list;
299 if (strcmp(p->name, driver) == 0)
300 return (p->kbdsw);
301 }
302
303 return (NULL);
304 }
305
306 /*
307 * Keyboard client functions
308 * Keyboard clients, such as the console driver `syscons' and the keyboard
309 * cdev driver, use these functions to claim and release a keyboard for
310 * exclusive use.
311 */
312
313 /*
314 * find the keyboard specified by a driver name and a unit number
315 * starting at given index
316 */
317 int
318 kbd_find_keyboard2(char *driver, int unit, int index)
319 {
320 int i;
321
322 if ((index < 0) || (index >= keyboards))
323 return (-1);
324
325 for (i = index; i < keyboards; ++i) {
326 if (keyboard[i] == NULL)
327 continue;
328 if (!KBD_IS_VALID(keyboard[i]))
329 continue;
330 if (strcmp("*", driver) && strcmp(keyboard[i]->kb_name, driver))
331 continue;
332 if ((unit != -1) && (keyboard[i]->kb_unit != unit))
333 continue;
334 return (i);
335 }
336
337 return (-1);
338 }
339
340 /* find the keyboard specified by a driver name and a unit number */
341 int
342 kbd_find_keyboard(char *driver, int unit)
343 {
344 return (kbd_find_keyboard2(driver, unit, 0));
345 }
346
347 /* allocate a keyboard */
348 int
349 kbd_allocate(char *driver, int unit, void *id, kbd_callback_func_t *func,
350 void *arg)
351 {
352 int index;
353 int s;
354
355 if (func == NULL)
356 return (-1);
357
358 s = spltty();
359 index = kbd_find_keyboard(driver, unit);
360 if (index >= 0) {
361 if (KBD_IS_BUSY(keyboard[index])) {
362 splx(s);
363 return (-1);
364 }
365 keyboard[index]->kb_token = id;
366 KBD_BUSY(keyboard[index]);
367 keyboard[index]->kb_callback.kc_func = func;
368 keyboard[index]->kb_callback.kc_arg = arg;
369 kbdd_clear_state(keyboard[index]);
370 }
371 splx(s);
372 return (index);
373 }
374
375 int
376 kbd_release(keyboard_t *kbd, void *id)
377 {
378 int error;
379 int s;
380
381 s = spltty();
382 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) {
383 error = EINVAL;
384 } else if (kbd->kb_token != id) {
385 error = EPERM;
386 } else {
387 kbd->kb_token = NULL;
388 KBD_UNBUSY(kbd);
389 kbd->kb_callback.kc_func = NULL;
390 kbd->kb_callback.kc_arg = NULL;
391 kbdd_clear_state(kbd);
392 error = 0;
393 }
394 splx(s);
395 return (error);
396 }
397
398 int
399 kbd_change_callback(keyboard_t *kbd, void *id, kbd_callback_func_t *func,
400 void *arg)
401 {
402 int error;
403 int s;
404
405 s = spltty();
406 if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) {
407 error = EINVAL;
408 } else if (kbd->kb_token != id) {
409 error = EPERM;
410 } else if (func == NULL) {
411 error = EINVAL;
412 } else {
413 kbd->kb_callback.kc_func = func;
414 kbd->kb_callback.kc_arg = arg;
415 error = 0;
416 }
417 splx(s);
418 return (error);
419 }
420
421 /* get a keyboard structure */
422 keyboard_t
423 *kbd_get_keyboard(int index)
424 {
425 if ((index < 0) || (index >= keyboards))
426 return (NULL);
427 if (keyboard[index] == NULL)
428 return (NULL);
429 if (!KBD_IS_VALID(keyboard[index]))
430 return (NULL);
431 return (keyboard[index]);
432 }
433
434 /*
435 * The back door for the console driver; configure keyboards
436 * This function is for the kernel console to initialize keyboards
437 * at very early stage.
438 */
439
440 int
441 kbd_configure(int flags)
442 {
443 const keyboard_driver_t **list;
444 const keyboard_driver_t *p;
445
446 SLIST_FOREACH(p, &keyboard_drivers, link) {
447 if (p->configure != NULL)
448 (*p->configure)(flags);
449 }
450 SET_FOREACH(list, kbddriver_set) {
451 p = *list;
452 if (p->configure != NULL)
453 (*p->configure)(flags);
454 }
455
456 return (0);
457 }
458
459 #ifdef KBD_INSTALL_CDEV
460
461 /*
462 * Virtual keyboard cdev driver functions
463 * The virtual keyboard driver dispatches driver functions to
464 * appropriate subdrivers.
465 */
466
467 #define KBD_UNIT(dev) dev2unit(dev)
468
469 static d_open_t genkbdopen;
470 static d_close_t genkbdclose;
471 static d_read_t genkbdread;
472 static d_write_t genkbdwrite;
473 static d_ioctl_t genkbdioctl;
474 static d_poll_t genkbdpoll;
475
476
477 static struct cdevsw kbd_cdevsw = {
478 .d_version = D_VERSION,
479 .d_flags = D_NEEDGIANT,
480 .d_open = genkbdopen,
481 .d_close = genkbdclose,
482 .d_read = genkbdread,
483 .d_write = genkbdwrite,
484 .d_ioctl = genkbdioctl,
485 .d_poll = genkbdpoll,
486 .d_name = "kbd",
487 };
488
489 int
490 kbd_attach(keyboard_t *kbd)
491 {
492
493 if (kbd->kb_index >= keyboards)
494 return (EINVAL);
495 if (keyboard[kbd->kb_index] != kbd)
496 return (EINVAL);
497
498 kbd->kb_dev = make_dev(&kbd_cdevsw, kbd->kb_index, UID_ROOT, GID_WHEEL,
499 0600, "%s%r", kbd->kb_name, kbd->kb_unit);
500 make_dev_alias(kbd->kb_dev, "kbd%r", kbd->kb_index);
501 kbd->kb_dev->si_drv1 = malloc(sizeof(genkbd_softc_t), M_DEVBUF,
502 M_WAITOK | M_ZERO);
503 printf("kbd%d at %s%d\n", kbd->kb_index, kbd->kb_name, kbd->kb_unit);
504 return (0);
505 }
506
507 int
508 kbd_detach(keyboard_t *kbd)
509 {
510
511 if (kbd->kb_index >= keyboards)
512 return (EINVAL);
513 if (keyboard[kbd->kb_index] != kbd)
514 return (EINVAL);
515
516 free(kbd->kb_dev->si_drv1, M_DEVBUF);
517 destroy_dev(kbd->kb_dev);
518
519 return (0);
520 }
521
522 /*
523 * Generic keyboard cdev driver functions
524 * Keyboard subdrivers may call these functions to implement common
525 * driver functions.
526 */
527
528 static void
529 genkbd_putc(genkbd_softc_t *sc, char c)
530 {
531 unsigned int p;
532
533 if (sc->gkb_q_length == KB_QSIZE)
534 return;
535
536 p = (sc->gkb_q_start + sc->gkb_q_length) % KB_QSIZE;
537 sc->gkb_q[p] = c;
538 sc->gkb_q_length++;
539 }
540
541 static size_t
542 genkbd_getc(genkbd_softc_t *sc, char *buf, size_t len)
543 {
544
545 /* Determine copy size. */
546 if (sc->gkb_q_length == 0)
547 return (0);
548 if (len >= sc->gkb_q_length)
549 len = sc->gkb_q_length;
550 if (len >= KB_QSIZE - sc->gkb_q_start)
551 len = KB_QSIZE - sc->gkb_q_start;
552
553 /* Copy out data and progress offset. */
554 memcpy(buf, sc->gkb_q + sc->gkb_q_start, len);
555 sc->gkb_q_start = (sc->gkb_q_start + len) % KB_QSIZE;
556 sc->gkb_q_length -= len;
557
558 return (len);
559 }
560
561 static kbd_callback_func_t genkbd_event;
562
563 static int
564 genkbdopen(struct cdev *dev, int mode, int flag, struct thread *td)
565 {
566 keyboard_t *kbd;
567 genkbd_softc_t *sc;
568 int s;
569 int i;
570
571 s = spltty();
572 sc = dev->si_drv1;
573 kbd = kbd_get_keyboard(KBD_INDEX(dev));
574 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) {
575 splx(s);
576 return (ENXIO);
577 }
578 i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc,
579 genkbd_event, (void *)sc);
580 if (i < 0) {
581 splx(s);
582 return (EBUSY);
583 }
584 /* assert(i == kbd->kb_index) */
585 /* assert(kbd == kbd_get_keyboard(i)) */
586
587 /*
588 * NOTE: even when we have successfully claimed a keyboard,
589 * the device may still be missing (!KBD_HAS_DEVICE(kbd)).
590 */
591
592 sc->gkb_q_length = 0;
593 splx(s);
594
595 return (0);
596 }
597
598 static int
599 genkbdclose(struct cdev *dev, int mode, int flag, struct thread *td)
600 {
601 keyboard_t *kbd;
602 genkbd_softc_t *sc;
603 int s;
604
605 /*
606 * NOTE: the device may have already become invalid.
607 * kbd == NULL || !KBD_IS_VALID(kbd)
608 */
609 s = spltty();
610 sc = dev->si_drv1;
611 kbd = kbd_get_keyboard(KBD_INDEX(dev));
612 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) {
613 /* XXX: we shall be forgiving and don't report error... */
614 } else {
615 kbd_release(kbd, (void *)sc);
616 }
617 splx(s);
618 return (0);
619 }
620
621 static int
622 genkbdread(struct cdev *dev, struct uio *uio, int flag)
623 {
624 keyboard_t *kbd;
625 genkbd_softc_t *sc;
626 u_char buffer[KB_BUFSIZE];
627 int len;
628 int error;
629 int s;
630
631 /* wait for input */
632 s = spltty();
633 sc = dev->si_drv1;
634 kbd = kbd_get_keyboard(KBD_INDEX(dev));
635 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) {
636 splx(s);
637 return (ENXIO);
638 }
639 while (sc->gkb_q_length == 0) {
640 if (flag & O_NONBLOCK) {
641 splx(s);
642 return (EWOULDBLOCK);
643 }
644 sc->gkb_flags |= KB_ASLEEP;
645 error = tsleep(sc, PZERO | PCATCH, "kbdrea", 0);
646 kbd = kbd_get_keyboard(KBD_INDEX(dev));
647 if ((kbd == NULL) || !KBD_IS_VALID(kbd)) {
648 splx(s);
649 return (ENXIO); /* our keyboard has gone... */
650 }
651 if (error) {
652 sc->gkb_flags &= ~KB_ASLEEP;
653 splx(s);
654 return (error);
655 }
656 }
657 splx(s);
658
659 /* copy as much input as possible */
660 error = 0;
661 while (uio->uio_resid > 0) {
662 len = imin(uio->uio_resid, sizeof(buffer));
663 len = genkbd_getc(sc, buffer, len);
664 if (len <= 0)
665 break;
666 error = uiomove(buffer, len, uio);
667 if (error)
668 break;
669 }
670
671 return (error);
672 }
673
674 static int
675 genkbdwrite(struct cdev *dev, struct uio *uio, int flag)
676 {
677 keyboard_t *kbd;
678
679 kbd = kbd_get_keyboard(KBD_INDEX(dev));
680 if ((kbd == NULL) || !KBD_IS_VALID(kbd))
681 return (ENXIO);
682 return (ENODEV);
683 }
684
685 static int
686 genkbdioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
687 {
688 keyboard_t *kbd;
689 int error;
690
691 kbd = kbd_get_keyboard(KBD_INDEX(dev));
692 if ((kbd == NULL) || !KBD_IS_VALID(kbd))
693 return (ENXIO);
694 error = kbdd_ioctl(kbd, cmd, arg);
695 if (error == ENOIOCTL)
696 error = ENODEV;
697 return (error);
698 }
699
700 static int
701 genkbdpoll(struct cdev *dev, int events, struct thread *td)
702 {
703 keyboard_t *kbd;
704 genkbd_softc_t *sc;
705 int revents;
706 int s;
707
708 revents = 0;
709 s = spltty();
710 sc = dev->si_drv1;
711 kbd = kbd_get_keyboard(KBD_INDEX(dev));
712 if ((sc == NULL) || (kbd == NULL) || !KBD_IS_VALID(kbd)) {
713 revents = POLLHUP; /* the keyboard has gone */
714 } else if (events & (POLLIN | POLLRDNORM)) {
715 if (sc->gkb_q_length > 0)
716 revents = events & (POLLIN | POLLRDNORM);
717 else
718 selrecord(td, &sc->gkb_rsel);
719 }
720 splx(s);
721 return (revents);
722 }
723
724 static int
725 genkbd_event(keyboard_t *kbd, int event, void *arg)
726 {
727 genkbd_softc_t *sc;
728 size_t len;
729 u_char *cp;
730 int mode;
731 int c;
732
733 /* assert(KBD_IS_VALID(kbd)) */
734 sc = (genkbd_softc_t *)arg;
735
736 switch (event) {
737 case KBDIO_KEYINPUT:
738 break;
739 case KBDIO_UNLOADING:
740 /* the keyboard is going... */
741 kbd_release(kbd, (void *)sc);
742 if (sc->gkb_flags & KB_ASLEEP) {
743 sc->gkb_flags &= ~KB_ASLEEP;
744 wakeup(sc);
745 }
746 selwakeuppri(&sc->gkb_rsel, PZERO);
747 return (0);
748 default:
749 return (EINVAL);
750 }
751
752 /* obtain the current key input mode */
753 if (kbdd_ioctl(kbd, KDGKBMODE, (caddr_t)&mode))
754 mode = K_XLATE;
755
756 /* read all pending input */
757 while (kbdd_check_char(kbd)) {
758 c = kbdd_read_char(kbd, FALSE);
759 if (c == NOKEY)
760 continue;
761 if (c == ERRKEY) /* XXX: ring bell? */
762 continue;
763 if (!KBD_IS_BUSY(kbd))
764 /* the device is not open, discard the input */
765 continue;
766
767 /* store the byte as is for K_RAW and K_CODE modes */
768 if (mode != K_XLATE) {
769 genkbd_putc(sc, KEYCHAR(c));
770 continue;
771 }
772
773 /* K_XLATE */
774 if (c & RELKEY) /* key release is ignored */
775 continue;
776
777 /* process special keys; most of them are just ignored... */
778 if (c & SPCLKEY) {
779 switch (KEYCHAR(c)) {
780 default:
781 /* ignore them... */
782 continue;
783 case BTAB: /* a backtab: ESC [ Z */
784 genkbd_putc(sc, 0x1b);
785 genkbd_putc(sc, '[');
786 genkbd_putc(sc, 'Z');
787 continue;
788 }
789 }
790
791 /* normal chars, normal chars with the META, function keys */
792 switch (KEYFLAGS(c)) {
793 case 0: /* a normal char */
794 genkbd_putc(sc, KEYCHAR(c));
795 break;
796 case MKEY: /* the META flag: prepend ESC */
797 genkbd_putc(sc, 0x1b);
798 genkbd_putc(sc, KEYCHAR(c));
799 break;
800 case FKEY | SPCLKEY: /* a function key, return string */
801 cp = kbdd_get_fkeystr(kbd, KEYCHAR(c), &len);
802 if (cp != NULL) {
803 while (len-- > 0)
804 genkbd_putc(sc, *cp++);
805 }
806 break;
807 }
808 }
809
810 /* wake up sleeping/polling processes */
811 if (sc->gkb_q_length > 0) {
812 if (sc->gkb_flags & KB_ASLEEP) {
813 sc->gkb_flags &= ~KB_ASLEEP;
814 wakeup(sc);
815 }
816 selwakeuppri(&sc->gkb_rsel, PZERO);
817 }
818
819 return (0);
820 }
821
822 #endif /* KBD_INSTALL_CDEV */
823
824 /*
825 * Generic low-level keyboard functions
826 * The low-level functions in the keyboard subdriver may use these
827 * functions.
828 */
829
830 #ifndef KBD_DISABLE_KEYMAP_LOAD
831 static int key_change_ok(struct keyent_t *, struct keyent_t *, struct thread *);
832 static int keymap_change_ok(keymap_t *, keymap_t *, struct thread *);
833 static int accent_change_ok(accentmap_t *, accentmap_t *, struct thread *);
834 static int fkey_change_ok(fkeytab_t *, fkeyarg_t *, struct thread *);
835 #endif
836
837 int
838 genkbd_commonioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
839 {
840 keyarg_t *keyp;
841 fkeyarg_t *fkeyp;
842 int s;
843 int i;
844 #ifndef KBD_DISABLE_KEYMAP_LOAD
845 int error;
846 #endif
847
848 s = spltty();
849 switch (cmd) {
850
851 case KDGKBINFO: /* get keyboard information */
852 ((keyboard_info_t *)arg)->kb_index = kbd->kb_index;
853 i = imin(strlen(kbd->kb_name) + 1,
854 sizeof(((keyboard_info_t *)arg)->kb_name));
855 bcopy(kbd->kb_name, ((keyboard_info_t *)arg)->kb_name, i);
856 ((keyboard_info_t *)arg)->kb_unit = kbd->kb_unit;
857 ((keyboard_info_t *)arg)->kb_type = kbd->kb_type;
858 ((keyboard_info_t *)arg)->kb_config = kbd->kb_config;
859 ((keyboard_info_t *)arg)->kb_flags = kbd->kb_flags;
860 break;
861
862 case KDGKBTYPE: /* get keyboard type */
863 *(int *)arg = kbd->kb_type;
864 break;
865
866 case KDGETREPEAT: /* get keyboard repeat rate */
867 ((int *)arg)[0] = kbd->kb_delay1;
868 ((int *)arg)[1] = kbd->kb_delay2;
869 break;
870
871 case GIO_KEYMAP: /* get keyboard translation table */
872 bcopy(kbd->kb_keymap, arg, sizeof(*kbd->kb_keymap));
873 break;
874 case PIO_KEYMAP: /* set keyboard translation table */
875 #ifndef KBD_DISABLE_KEYMAP_LOAD
876 error = keymap_change_ok(kbd->kb_keymap, (keymap_t *)arg,
877 curthread);
878 if (error != 0) {
879 splx(s);
880 return (error);
881 }
882 bzero(kbd->kb_accentmap, sizeof(*kbd->kb_accentmap));
883 bcopy(arg, kbd->kb_keymap, sizeof(*kbd->kb_keymap));
884 break;
885 #else
886 splx(s);
887 return (ENODEV);
888 #endif
889
890 case GIO_KEYMAPENT: /* get keyboard translation table entry */
891 keyp = (keyarg_t *)arg;
892 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) /
893 sizeof(kbd->kb_keymap->key[0])) {
894 splx(s);
895 return (EINVAL);
896 }
897 bcopy(&kbd->kb_keymap->key[keyp->keynum], &keyp->key,
898 sizeof(keyp->key));
899 break;
900 case PIO_KEYMAPENT: /* set keyboard translation table entry */
901 #ifndef KBD_DISABLE_KEYMAP_LOAD
902 keyp = (keyarg_t *)arg;
903 if (keyp->keynum >= sizeof(kbd->kb_keymap->key) /
904 sizeof(kbd->kb_keymap->key[0])) {
905 splx(s);
906 return (EINVAL);
907 }
908 error = key_change_ok(&kbd->kb_keymap->key[keyp->keynum],
909 &keyp->key, curthread);
910 if (error != 0) {
911 splx(s);
912 return (error);
913 }
914 bcopy(&keyp->key, &kbd->kb_keymap->key[keyp->keynum],
915 sizeof(keyp->key));
916 break;
917 #else
918 splx(s);
919 return (ENODEV);
920 #endif
921
922 case GIO_DEADKEYMAP: /* get accent key translation table */
923 bcopy(kbd->kb_accentmap, arg, sizeof(*kbd->kb_accentmap));
924 break;
925 case PIO_DEADKEYMAP: /* set accent key translation table */
926 #ifndef KBD_DISABLE_KEYMAP_LOAD
927 error = accent_change_ok(kbd->kb_accentmap,
928 (accentmap_t *)arg, curthread);
929 if (error != 0) {
930 splx(s);
931 return (error);
932 }
933 bcopy(arg, kbd->kb_accentmap, sizeof(*kbd->kb_accentmap));
934 break;
935 #else
936 splx(s);
937 return (ENODEV);
938 #endif
939
940 case GETFKEY: /* get functionkey string */
941 fkeyp = (fkeyarg_t *)arg;
942 if (fkeyp->keynum >= kbd->kb_fkeytab_size) {
943 splx(s);
944 return (EINVAL);
945 }
946 bcopy(kbd->kb_fkeytab[fkeyp->keynum].str, fkeyp->keydef,
947 kbd->kb_fkeytab[fkeyp->keynum].len);
948 fkeyp->flen = kbd->kb_fkeytab[fkeyp->keynum].len;
949 break;
950 case SETFKEY: /* set functionkey string */
951 #ifndef KBD_DISABLE_KEYMAP_LOAD
952 fkeyp = (fkeyarg_t *)arg;
953 if (fkeyp->keynum >= kbd->kb_fkeytab_size) {
954 splx(s);
955 return (EINVAL);
956 }
957 error = fkey_change_ok(&kbd->kb_fkeytab[fkeyp->keynum],
958 fkeyp, curthread);
959 if (error != 0) {
960 splx(s);
961 return (error);
962 }
963 kbd->kb_fkeytab[fkeyp->keynum].len = imin(fkeyp->flen, MAXFK);
964 bcopy(fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].str,
965 kbd->kb_fkeytab[fkeyp->keynum].len);
966 break;
967 #else
968 splx(s);
969 return (ENODEV);
970 #endif
971
972 default:
973 splx(s);
974 return (ENOIOCTL);
975 }
976
977 splx(s);
978 return (0);
979 }
980
981 #ifndef KBD_DISABLE_KEYMAP_LOAD
982 #define RESTRICTED_KEY(key, i) \
983 ((key->spcl & (0x80 >> i)) && \
984 (key->map[i] == RBT || key->map[i] == SUSP || \
985 key->map[i] == STBY || key->map[i] == DBG || \
986 key->map[i] == PNC || key->map[i] == HALT || \
987 key->map[i] == PDWN))
988
989 static int
990 key_change_ok(struct keyent_t *oldkey, struct keyent_t *newkey, struct thread *td)
991 {
992 int i;
993
994 /* Low keymap_restrict_change means any changes are OK. */
995 if (keymap_restrict_change <= 0)
996 return (0);
997
998 /* High keymap_restrict_change means only root can change the keymap. */
999 if (keymap_restrict_change >= 2) {
1000 for (i = 0; i < NUM_STATES; i++)
1001 if (oldkey->map[i] != newkey->map[i])
1002 return priv_check(td, PRIV_KEYBOARD);
1003 if (oldkey->spcl != newkey->spcl)
1004 return priv_check(td, PRIV_KEYBOARD);
1005 if (oldkey->flgs != newkey->flgs)
1006 return priv_check(td, PRIV_KEYBOARD);
1007 return (0);
1008 }
1009
1010 /* Otherwise we have to see if any special keys are being changed. */
1011 for (i = 0; i < NUM_STATES; i++) {
1012 /*
1013 * If either the oldkey or the newkey action is restricted
1014 * then we must make sure that the action doesn't change.
1015 */
1016 if (!RESTRICTED_KEY(oldkey, i) && !RESTRICTED_KEY(newkey, i))
1017 continue;
1018 if ((oldkey->spcl & (0x80 >> i)) == (newkey->spcl & (0x80 >> i))
1019 && oldkey->map[i] == newkey->map[i])
1020 continue;
1021 return priv_check(td, PRIV_KEYBOARD);
1022 }
1023
1024 return (0);
1025 }
1026
1027 static int
1028 keymap_change_ok(keymap_t *oldmap, keymap_t *newmap, struct thread *td)
1029 {
1030 int keycode, error;
1031
1032 for (keycode = 0; keycode < NUM_KEYS; keycode++) {
1033 if ((error = key_change_ok(&oldmap->key[keycode],
1034 &newmap->key[keycode], td)) != 0)
1035 return (error);
1036 }
1037 return (0);
1038 }
1039
1040 static int
1041 accent_change_ok(accentmap_t *oldmap, accentmap_t *newmap, struct thread *td)
1042 {
1043 struct acc_t *oldacc, *newacc;
1044 int accent, i;
1045
1046 if (keymap_restrict_change <= 2)
1047 return (0);
1048
1049 if (oldmap->n_accs != newmap->n_accs)
1050 return priv_check(td, PRIV_KEYBOARD);
1051
1052 for (accent = 0; accent < oldmap->n_accs; accent++) {
1053 oldacc = &oldmap->acc[accent];
1054 newacc = &newmap->acc[accent];
1055 if (oldacc->accchar != newacc->accchar)
1056 return priv_check(td, PRIV_KEYBOARD);
1057 for (i = 0; i < NUM_ACCENTCHARS; ++i) {
1058 if (oldacc->map[i][0] != newacc->map[i][0])
1059 return priv_check(td, PRIV_KEYBOARD);
1060 if (oldacc->map[i][0] == 0) /* end of table */
1061 break;
1062 if (oldacc->map[i][1] != newacc->map[i][1])
1063 return priv_check(td, PRIV_KEYBOARD);
1064 }
1065 }
1066
1067 return (0);
1068 }
1069
1070 static int
1071 fkey_change_ok(fkeytab_t *oldkey, fkeyarg_t *newkey, struct thread *td)
1072 {
1073 if (keymap_restrict_change <= 3)
1074 return (0);
1075
1076 if (oldkey->len != newkey->flen ||
1077 bcmp(oldkey->str, newkey->keydef, oldkey->len) != 0)
1078 return priv_check(td, PRIV_KEYBOARD);
1079
1080 return (0);
1081 }
1082 #endif
1083
1084 /* get a pointer to the string associated with the given function key */
1085 u_char
1086 *genkbd_get_fkeystr(keyboard_t *kbd, int fkey, size_t *len)
1087 {
1088 if (kbd == NULL)
1089 return (NULL);
1090 fkey -= F_FN;
1091 if (fkey > kbd->kb_fkeytab_size)
1092 return (NULL);
1093 *len = kbd->kb_fkeytab[fkey].len;
1094 return (kbd->kb_fkeytab[fkey].str);
1095 }
1096
1097 /* diagnostic dump */
1098 static char
1099 *get_kbd_type_name(int type)
1100 {
1101 static struct {
1102 int type;
1103 char *name;
1104 } name_table[] = {
1105 { KB_84, "AT 84" },
1106 { KB_101, "AT 101/102" },
1107 { KB_OTHER, "generic" },
1108 };
1109 int i;
1110
1111 for (i = 0; i < sizeof(name_table)/sizeof(name_table[0]); ++i) {
1112 if (type == name_table[i].type)
1113 return (name_table[i].name);
1114 }
1115 return ("unknown");
1116 }
1117
1118 void
1119 genkbd_diag(keyboard_t *kbd, int level)
1120 {
1121 if (level > 0) {
1122 printf("kbd%d: %s%d, %s (%d), config:0x%x, flags:0x%x",
1123 kbd->kb_index, kbd->kb_name, kbd->kb_unit,
1124 get_kbd_type_name(kbd->kb_type), kbd->kb_type,
1125 kbd->kb_config, kbd->kb_flags);
1126 if (kbd->kb_io_base > 0)
1127 printf(", port:0x%x-0x%x", kbd->kb_io_base,
1128 kbd->kb_io_base + kbd->kb_io_size - 1);
1129 printf("\n");
1130 }
1131 }
1132
1133 #define set_lockkey_state(k, s, l) \
1134 if (!((s) & l ## DOWN)) { \
1135 int i; \
1136 (s) |= l ## DOWN; \
1137 (s) ^= l ## ED; \
1138 i = (s) & LOCK_MASK; \
1139 kbdd_ioctl((k), KDSETLED, (caddr_t)&i); \
1140 }
1141
1142 static u_int
1143 save_accent_key(keyboard_t *kbd, u_int key, int *accents)
1144 {
1145 int i;
1146
1147 /* make an index into the accent map */
1148 i = key - F_ACC + 1;
1149 if ((i > kbd->kb_accentmap->n_accs)
1150 || (kbd->kb_accentmap->acc[i - 1].accchar == 0)) {
1151 /* the index is out of range or pointing to an empty entry */
1152 *accents = 0;
1153 return (ERRKEY);
1154 }
1155
1156 /*
1157 * If the same accent key has been hit twice, produce the accent
1158 * char itself.
1159 */
1160 if (i == *accents) {
1161 key = kbd->kb_accentmap->acc[i - 1].accchar;
1162 *accents = 0;
1163 return (key);
1164 }
1165
1166 /* remember the index and wait for the next key */
1167 *accents = i;
1168 return (NOKEY);
1169 }
1170
1171 static u_int
1172 make_accent_char(keyboard_t *kbd, u_int ch, int *accents)
1173 {
1174 struct acc_t *acc;
1175 int i;
1176
1177 acc = &kbd->kb_accentmap->acc[*accents - 1];
1178 *accents = 0;
1179
1180 /*
1181 * If the accent key is followed by the space key,
1182 * produce the accent char itself.
1183 */
1184 if (ch == ' ')
1185 return (acc->accchar);
1186
1187 /* scan the accent map */
1188 for (i = 0; i < NUM_ACCENTCHARS; ++i) {
1189 if (acc->map[i][0] == 0) /* end of table */
1190 break;
1191 if (acc->map[i][0] == ch)
1192 return (acc->map[i][1]);
1193 }
1194 /* this char cannot be accented... */
1195 return (ERRKEY);
1196 }
1197
1198 int
1199 genkbd_keyaction(keyboard_t *kbd, int keycode, int up, int *shiftstate,
1200 int *accents)
1201 {
1202 struct keyent_t *key;
1203 int state = *shiftstate;
1204 int action;
1205 int f;
1206 int i;
1207
1208 i = keycode;
1209 f = state & (AGRS | ALKED);
1210 if ((f == AGRS1) || (f == AGRS2) || (f == ALKED))
1211 i += ALTGR_OFFSET;
1212 key = &kbd->kb_keymap->key[i];
1213 i = ((state & SHIFTS) ? 1 : 0)
1214 | ((state & CTLS) ? 2 : 0)
1215 | ((state & ALTS) ? 4 : 0);
1216 if (((key->flgs & FLAG_LOCK_C) && (state & CLKED))
1217 || ((key->flgs & FLAG_LOCK_N) && (state & NLKED)) )
1218 i ^= 1;
1219
1220 if (up) { /* break: key released */
1221 action = kbd->kb_lastact[keycode];
1222 kbd->kb_lastact[keycode] = NOP;
1223 switch (action) {
1224 case LSHA:
1225 if (state & SHIFTAON) {
1226 set_lockkey_state(kbd, state, ALK);
1227 state &= ~ALKDOWN;
1228 }
1229 action = LSH;
1230 /* FALL THROUGH */
1231 case LSH:
1232 state &= ~SHIFTS1;
1233 break;
1234 case RSHA:
1235 if (state & SHIFTAON) {
1236 set_lockkey_state(kbd, state, ALK);
1237 state &= ~ALKDOWN;
1238 }
1239 action = RSH;
1240 /* FALL THROUGH */
1241 case RSH:
1242 state &= ~SHIFTS2;
1243 break;
1244 case LCTRA:
1245 if (state & SHIFTAON) {
1246 set_lockkey_state(kbd, state, ALK);
1247 state &= ~ALKDOWN;
1248 }
1249 action = LCTR;
1250 /* FALL THROUGH */
1251 case LCTR:
1252 state &= ~CTLS1;
1253 break;
1254 case RCTRA:
1255 if (state & SHIFTAON) {
1256 set_lockkey_state(kbd, state, ALK);
1257 state &= ~ALKDOWN;
1258 }
1259 action = RCTR;
1260 /* FALL THROUGH */
1261 case RCTR:
1262 state &= ~CTLS2;
1263 break;
1264 case LALTA:
1265 if (state & SHIFTAON) {
1266 set_lockkey_state(kbd, state, ALK);
1267 state &= ~ALKDOWN;
1268 }
1269 action = LALT;
1270 /* FALL THROUGH */
1271 case LALT:
1272 state &= ~ALTS1;
1273 break;
1274 case RALTA:
1275 if (state & SHIFTAON) {
1276 set_lockkey_state(kbd, state, ALK);
1277 state &= ~ALKDOWN;
1278 }
1279 action = RALT;
1280 /* FALL THROUGH */
1281 case RALT:
1282 state &= ~ALTS2;
1283 break;
1284 case ASH:
1285 state &= ~AGRS1;
1286 break;
1287 case META:
1288 state &= ~METAS1;
1289 break;
1290 case NLK:
1291 state &= ~NLKDOWN;
1292 break;
1293 case CLK:
1294 #ifndef PC98
1295 state &= ~CLKDOWN;
1296 #else
1297 state &= ~CLKED;
1298 i = state & LOCK_MASK;
1299 kbdd_ioctl(kbd, KDSETLED, (caddr_t)&i);
1300 #endif
1301 break;
1302 case SLK:
1303 state &= ~SLKDOWN;
1304 break;
1305 case ALK:
1306 state &= ~ALKDOWN;
1307 break;
1308 case NOP:
1309 /* release events of regular keys are not reported */
1310 *shiftstate &= ~SHIFTAON;
1311 return (NOKEY);
1312 }
1313 *shiftstate = state & ~SHIFTAON;
1314 return (SPCLKEY | RELKEY | action);
1315 } else { /* make: key pressed */
1316 action = key->map[i];
1317 state &= ~SHIFTAON;
1318 if (key->spcl & (0x80 >> i)) {
1319 /* special keys */
1320 if (kbd->kb_lastact[keycode] == NOP)
1321 kbd->kb_lastact[keycode] = action;
1322 if (kbd->kb_lastact[keycode] != action)
1323 action = NOP;
1324 switch (action) {
1325 /* LOCKING KEYS */
1326 case NLK:
1327 set_lockkey_state(kbd, state, NLK);
1328 break;
1329 case CLK:
1330 #ifndef PC98
1331 set_lockkey_state(kbd, state, CLK);
1332 #else
1333 state |= CLKED;
1334 i = state & LOCK_MASK;
1335 kbdd_ioctl(kbd, KDSETLED, (caddr_t)&i);
1336 #endif
1337 break;
1338 case SLK:
1339 set_lockkey_state(kbd, state, SLK);
1340 break;
1341 case ALK:
1342 set_lockkey_state(kbd, state, ALK);
1343 break;
1344 /* NON-LOCKING KEYS */
1345 case SPSC: case RBT: case SUSP: case STBY:
1346 case DBG: case NEXT: case PREV: case PNC:
1347 case HALT: case PDWN:
1348 *accents = 0;
1349 break;
1350 case BTAB:
1351 *accents = 0;
1352 action |= BKEY;
1353 break;
1354 case LSHA:
1355 state |= SHIFTAON;
1356 action = LSH;
1357 /* FALL THROUGH */
1358 case LSH:
1359 state |= SHIFTS1;
1360 break;
1361 case RSHA:
1362 state |= SHIFTAON;
1363 action = RSH;
1364 /* FALL THROUGH */
1365 case RSH:
1366 state |= SHIFTS2;
1367 break;
1368 case LCTRA:
1369 state |= SHIFTAON;
1370 action = LCTR;
1371 /* FALL THROUGH */
1372 case LCTR:
1373 state |= CTLS1;
1374 break;
1375 case RCTRA:
1376 state |= SHIFTAON;
1377 action = RCTR;
1378 /* FALL THROUGH */
1379 case RCTR:
1380 state |= CTLS2;
1381 break;
1382 case LALTA:
1383 state |= SHIFTAON;
1384 action = LALT;
1385 /* FALL THROUGH */
1386 case LALT:
1387 state |= ALTS1;
1388 break;
1389 case RALTA:
1390 state |= SHIFTAON;
1391 action = RALT;
1392 /* FALL THROUGH */
1393 case RALT:
1394 state |= ALTS2;
1395 break;
1396 case ASH:
1397 state |= AGRS1;
1398 break;
1399 case META:
1400 state |= METAS1;
1401 break;
1402 case NOP:
1403 *shiftstate = state;
1404 return (NOKEY);
1405 default:
1406 /* is this an accent (dead) key? */
1407 *shiftstate = state;
1408 if (action >= F_ACC && action <= L_ACC) {
1409 action = save_accent_key(kbd, action,
1410 accents);
1411 switch (action) {
1412 case NOKEY:
1413 case ERRKEY:
1414 return (action);
1415 default:
1416 if (state & METAS)
1417 return (action | MKEY);
1418 else
1419 return (action);
1420 }
1421 /* NOT REACHED */
1422 }
1423 /* other special keys */
1424 if (*accents > 0) {
1425 *accents = 0;
1426 return (ERRKEY);
1427 }
1428 if (action >= F_FN && action <= L_FN)
1429 action |= FKEY;
1430 /* XXX: return fkey string for the FKEY? */
1431 return (SPCLKEY | action);
1432 }
1433 *shiftstate = state;
1434 return (SPCLKEY | action);
1435 } else {
1436 /* regular keys */
1437 kbd->kb_lastact[keycode] = NOP;
1438 *shiftstate = state;
1439 if (*accents > 0) {
1440 /* make an accented char */
1441 action = make_accent_char(kbd, action, accents);
1442 if (action == ERRKEY)
1443 return (action);
1444 }
1445 if (state & METAS)
1446 action |= MKEY;
1447 return (action);
1448 }
1449 }
1450 /* NOT REACHED */
1451 }
Cache object: f100c395ccade7c07aaa5418f9c7d2e2
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