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wskbd.c revision 1.38
      1 /* $NetBSD: wskbd.c,v 1.38 2000/03/23 07:01:47 thorpej Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1996, 1997 Christopher G. Demetriou.  All rights reserved.
      5  *
      6  * Keysym translator:
      7  * Contributed to The NetBSD Foundation by Juergen Hannken-Illjes.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *      This product includes software developed by Christopher G. Demetriou
     20  *	for the NetBSD Project.
     21  * 4. The name of the author may not be used to endorse or promote products
     22  *    derived from this software without specific prior written permission
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     27  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     28  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     33  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 __KERNEL_RCSID(0, "$NetBSD: wskbd.c,v 1.38 2000/03/23 07:01:47 thorpej Exp $");
     38 
     39 /*
     40  * Copyright (c) 1992, 1993
     41  *	The Regents of the University of California.  All rights reserved.
     42  *
     43  * This software was developed by the Computer Systems Engineering group
     44  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
     45  * contributed to Berkeley.
     46  *
     47  * All advertising materials mentioning features or use of this software
     48  * must display the following acknowledgement:
     49  *	This product includes software developed by the University of
     50  *	California, Lawrence Berkeley Laboratory.
     51  *
     52  * Redistribution and use in source and binary forms, with or without
     53  * modification, are permitted provided that the following conditions
     54  * are met:
     55  * 1. Redistributions of source code must retain the above copyright
     56  *    notice, this list of conditions and the following disclaimer.
     57  * 2. Redistributions in binary form must reproduce the above copyright
     58  *    notice, this list of conditions and the following disclaimer in the
     59  *    documentation and/or other materials provided with the distribution.
     60  * 3. All advertising materials mentioning features or use of this software
     61  *    must display the following acknowledgement:
     62  *	This product includes software developed by the University of
     63  *	California, Berkeley and its contributors.
     64  * 4. Neither the name of the University nor the names of its contributors
     65  *    may be used to endorse or promote products derived from this software
     66  *    without specific prior written permission.
     67  *
     68  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     69  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     70  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     71  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     72  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     73  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     74  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     75  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     76  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     77  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     78  * SUCH DAMAGE.
     79  *
     80  *	@(#)kbd.c	8.2 (Berkeley) 10/30/93
     81  */
     82 
     83 /*
     84  * Keyboard driver (/dev/wskbd*).  Translates incoming bytes to ASCII or
     85  * to `wscons_events' and passes them up to the appropriate reader.
     86  */
     87 
     88 #include "opt_ddb.h"
     89 
     90 #include <sys/param.h>
     91 #include <sys/conf.h>
     92 #include <sys/device.h>
     93 #include <sys/ioctl.h>
     94 #include <sys/kernel.h>
     95 #include <sys/proc.h>
     96 #include <sys/syslog.h>
     97 #include <sys/systm.h>
     98 #include <sys/callout.h>
     99 #include <sys/malloc.h>
    100 #include <sys/tty.h>
    101 #include <sys/signalvar.h>
    102 #include <sys/errno.h>
    103 #include <sys/fcntl.h>
    104 #include <sys/vnode.h>
    105 
    106 #include <dev/wscons/wsconsio.h>
    107 #include <dev/wscons/wskbdvar.h>
    108 #include <dev/wscons/wsksymdef.h>
    109 #include <dev/wscons/wsksymvar.h>
    110 #include <dev/wscons/wseventvar.h>
    111 #include <dev/wscons/wscons_callbacks.h>
    112 
    113 #include "opt_wsdisplay_compat.h"
    114 
    115 #include "wsdisplay.h"
    116 #include "wsmux.h"
    117 
    118 #ifdef WSKBD_DEBUG
    119 #define DPRINTF(x)	if (wskbddebug) printf x
    120 int	wskbddebug = 0;
    121 #else
    122 #define DPRINTF(x)
    123 #endif
    124 
    125 #if NWSMUX > 0 || NWSDISPLAY > 0
    126 #include <dev/wscons/wsmuxvar.h>
    127 #endif
    128 
    129 struct wskbd_internal {
    130 	const struct wskbd_mapdata *t_keymap;
    131 
    132 	const struct wskbd_consops *t_consops;
    133 	void	*t_consaccesscookie;
    134 
    135 	int	t_modifiers;
    136 	int	t_composelen;		/* remaining entries in t_composebuf */
    137 	keysym_t t_composebuf[2];
    138 
    139 	int t_flags;
    140 #define WSKFL_METAESC 1
    141 
    142 #define MAXKEYSYMSPERKEY 2 /* ESC <key> at max */
    143 	keysym_t t_symbols[MAXKEYSYMSPERKEY];
    144 
    145 	struct wskbd_softc *t_sc;	/* back pointer */
    146 };
    147 
    148 struct wskbd_softc {
    149 	struct device	sc_dv;
    150 
    151 	struct wskbd_internal *id;
    152 
    153 	const struct wskbd_accessops *sc_accessops;
    154 	void *sc_accesscookie;
    155 
    156 	int	sc_ledstate;
    157 
    158 	int	sc_ready;		/* accepting events */
    159 	struct wseventvar sc_events;	/* event queue state */
    160 
    161 	int	sc_isconsole;
    162 #if NWSDISPLAY > 0
    163 	struct device	*sc_displaydv;
    164 #endif
    165 
    166 	struct wskbd_bell_data sc_bell_data;
    167 	struct wskbd_keyrepeat_data sc_keyrepeat_data;
    168 
    169 	int	sc_repeating;		/* we've called timeout() */
    170 	struct callout sc_repeat_ch;
    171 
    172 	int	sc_translating;		/* xlate to chars for emulation */
    173 
    174 	int	sc_maplen;		/* number of entries in sc_map */
    175 	struct wscons_keymap *sc_map;	/* current translation map */
    176 	kbd_t sc_layout; /* current layout */
    177 
    178 	int		sc_refcnt;
    179 	u_char		sc_dying;	/* device is being detached */
    180 
    181 #if NWSMUX > 0 || NWSDISPLAY > 0
    182 	struct wsmux_softc *sc_mux;
    183 #endif
    184 };
    185 
    186 #define MOD_SHIFT_L		(1 << 0)
    187 #define MOD_SHIFT_R		(1 << 1)
    188 #define MOD_SHIFTLOCK		(1 << 2)
    189 #define MOD_CAPSLOCK		(1 << 3)
    190 #define MOD_CONTROL_L		(1 << 4)
    191 #define MOD_CONTROL_R		(1 << 5)
    192 #define MOD_META_L		(1 << 6)
    193 #define MOD_META_R		(1 << 7)
    194 #define MOD_MODESHIFT		(1 << 8)
    195 #define MOD_NUMLOCK		(1 << 9)
    196 #define MOD_COMPOSE		(1 << 10)
    197 #define MOD_HOLDSCREEN		(1 << 11)
    198 #define MOD_COMMAND		(1 << 12)
    199 #define MOD_COMMAND1		(1 << 13)
    200 #define MOD_COMMAND2		(1 << 14)
    201 
    202 #define MOD_ANYSHIFT		(MOD_SHIFT_L | MOD_SHIFT_R | MOD_SHIFTLOCK)
    203 #define MOD_ANYCONTROL		(MOD_CONTROL_L | MOD_CONTROL_R)
    204 #define MOD_ANYMETA		(MOD_META_L | MOD_META_R)
    205 
    206 #define MOD_ONESET(id, mask)	(((id)->t_modifiers & (mask)) != 0)
    207 #define MOD_ALLSET(id, mask)	(((id)->t_modifiers & (mask)) == (mask))
    208 
    209 int	wskbd_match __P((struct device *, struct cfdata *, void *));
    210 void	wskbd_attach __P((struct device *, struct device *, void *));
    211 int	wskbd_detach __P((struct device *, int));
    212 int	wskbd_activate __P((struct device *, enum devact));
    213 
    214 static int wskbd_displayioctl
    215 	    __P((struct device *, u_long, caddr_t, int, struct proc *p));
    216 int	wskbd_set_display __P((struct device *, struct wsmux_softc *));
    217 
    218 static inline void update_leds __P((struct wskbd_internal *));
    219 static inline void update_modifier __P((struct wskbd_internal *, u_int, int, int));
    220 static int internal_command __P((struct wskbd_softc *, u_int *, keysym_t));
    221 static int wskbd_translate __P((struct wskbd_internal *, u_int, int));
    222 static int wskbd_enable __P((struct wskbd_softc *, int));
    223 #if NWSDISPLAY > 0
    224 static void wskbd_holdscreen __P((struct wskbd_softc *, int));
    225 #endif
    226 
    227 int	wskbd_do_ioctl __P((struct wskbd_softc *, u_long, caddr_t,
    228 			    int, struct proc *));
    229 
    230 int	wskbddoclose __P((struct device *, int, int, struct proc *));
    231 int	wskbddoioctl __P((struct device *, u_long, caddr_t, int,
    232 			  struct proc *));
    233 
    234 struct cfattach wskbd_ca = {
    235 	sizeof (struct wskbd_softc), wskbd_match, wskbd_attach,
    236 	wskbd_detach, wskbd_activate
    237 };
    238 
    239 extern struct cfdriver wskbd_cd;
    240 
    241 #ifndef WSKBD_DEFAULT_BELL_PITCH
    242 #define	WSKBD_DEFAULT_BELL_PITCH	1500	/* 1500Hz */
    243 #endif
    244 #ifndef WSKBD_DEFAULT_BELL_PERIOD
    245 #define	WSKBD_DEFAULT_BELL_PERIOD	100	/* 100ms */
    246 #endif
    247 #ifndef WSKBD_DEFAULT_BELL_VOLUME
    248 #define	WSKBD_DEFAULT_BELL_VOLUME	50	/* 50% volume */
    249 #endif
    250 
    251 struct wskbd_bell_data wskbd_default_bell_data = {
    252 	WSKBD_BELL_DOALL,
    253 	WSKBD_DEFAULT_BELL_PITCH,
    254 	WSKBD_DEFAULT_BELL_PERIOD,
    255 	WSKBD_DEFAULT_BELL_VOLUME,
    256 };
    257 
    258 #ifndef WSKBD_DEFAULT_KEYREPEAT_DEL1
    259 #define	WSKBD_DEFAULT_KEYREPEAT_DEL1	400	/* 400ms to start repeating */
    260 #endif
    261 #ifndef WSKBD_DEFAULT_KEYREPEAT_DELN
    262 #define	WSKBD_DEFAULT_KEYREPEAT_DELN	100	/* 100ms to between repeats */
    263 #endif
    264 
    265 struct wskbd_keyrepeat_data wskbd_default_keyrepeat_data = {
    266 	WSKBD_KEYREPEAT_DOALL,
    267 	WSKBD_DEFAULT_KEYREPEAT_DEL1,
    268 	WSKBD_DEFAULT_KEYREPEAT_DELN,
    269 };
    270 
    271 cdev_decl(wskbd);
    272 
    273 #if NWSMUX > 0 || NWSDISPLAY > 0
    274 struct wsmuxops wskbd_muxops = {
    275 	wskbdopen, wskbddoclose, wskbddoioctl, wskbd_displayioctl,
    276 	wskbd_set_display
    277 };
    278 #endif
    279 
    280 #if NWSDISPLAY > 0
    281 static void wskbd_repeat __P((void *v));
    282 #endif
    283 
    284 static int wskbd_console_initted;
    285 static struct wskbd_softc *wskbd_console_device;
    286 static struct wskbd_internal wskbd_console_data;
    287 
    288 static void wskbd_update_layout __P((struct wskbd_internal *, kbd_t));
    289 
    290 static void
    291 wskbd_update_layout(id, enc)
    292 	struct wskbd_internal *id;
    293 	kbd_t enc;
    294 {
    295 
    296 	if (enc & KB_METAESC)
    297 		id->t_flags |= WSKFL_METAESC;
    298 	else
    299 		id->t_flags &= ~WSKFL_METAESC;
    300 }
    301 
    302 /*
    303  * Print function (for parent devices).
    304  */
    305 int
    306 wskbddevprint(aux, pnp)
    307 	void *aux;
    308 	const char *pnp;
    309 {
    310 #if 0
    311 	struct wskbddev_attach_args *ap = aux;
    312 #endif
    313 
    314 	if (pnp)
    315 		printf("wskbd at %s", pnp);
    316 #if 0
    317 	printf(" console %d", ap->console);
    318 #endif
    319 
    320 	return (UNCONF);
    321 }
    322 
    323 int
    324 wskbd_match(parent, match, aux)
    325 	struct device *parent;
    326 	struct cfdata *match;
    327 	void *aux;
    328 {
    329 	struct wskbddev_attach_args *ap = aux;
    330 
    331 	if (match->wskbddevcf_console != WSKBDDEVCF_CONSOLE_UNK) {
    332 		/*
    333 		 * If console-ness of device specified, either match
    334 		 * exactly (at high priority), or fail.
    335 		 */
    336 		if (match->wskbddevcf_console != 0 && ap->console != 0)
    337 			return (10);
    338 		else
    339 			return (0);
    340 	}
    341 
    342 	/* If console-ness unspecified, it wins. */
    343 	return (1);
    344 }
    345 
    346 void
    347 wskbd_attach(parent, self, aux)
    348 	struct device *parent, *self;
    349 	void *aux;
    350 {
    351 	struct wskbd_softc *sc = (struct wskbd_softc *)self;
    352 	struct wskbddev_attach_args *ap = aux;
    353 #if NWSMUX > 0 || NWSDISPLAY > 0
    354 	int mux;
    355 #endif
    356 
    357 #if NWSDISPLAY > 0
    358 	sc->sc_displaydv = NULL;
    359 #endif
    360 	sc->sc_isconsole = ap->console;
    361 
    362 #if NWSMUX > 0 || NWSDISPLAY > 0
    363 	mux = sc->sc_dv.dv_cfdata->wskbddevcf_mux;
    364 	if (sc->sc_isconsole && mux != WSKBDDEVCF_MUX_DEFAULT) {
    365 		printf(" (mux %d ignored for console)", mux);
    366 		mux = WSKBDDEVCF_MUX_DEFAULT;
    367 	}
    368 	if (mux != WSKBDDEVCF_MUX_DEFAULT)
    369 		printf(" mux %d", mux);
    370 #endif
    371 
    372 	if (ap->console) {
    373 		sc->id = &wskbd_console_data;
    374 	} else {
    375 		sc->id = malloc(sizeof(struct wskbd_internal),
    376 				M_DEVBUF, M_WAITOK);
    377 		bzero(sc->id, sizeof(struct wskbd_internal));
    378 		sc->id->t_keymap = ap->keymap;
    379 		wskbd_update_layout(sc->id, ap->keymap->layout);
    380 	}
    381 
    382 	callout_init(&sc->sc_repeat_ch);
    383 
    384 	sc->id->t_sc = sc;
    385 
    386 	sc->sc_accessops = ap->accessops;
    387 	sc->sc_accesscookie = ap->accesscookie;
    388 	sc->sc_ready = 0;				/* sanity */
    389 	sc->sc_repeating = 0;
    390 	sc->sc_translating = 1;
    391 	sc->sc_ledstate = -1; /* force update */
    392 
    393 	if (wskbd_load_keymap(sc->id->t_keymap,
    394 			      &sc->sc_map, &sc->sc_maplen) != 0)
    395 		panic("cannot load keymap");
    396 
    397 	sc->sc_layout = sc->id->t_keymap->layout;
    398 
    399 	/* set default bell and key repeat data */
    400 	sc->sc_bell_data = wskbd_default_bell_data;
    401 	sc->sc_keyrepeat_data = wskbd_default_keyrepeat_data;
    402 
    403 	if (ap->console) {
    404 		KASSERT(wskbd_console_initted);
    405 		KASSERT(wskbd_console_device == NULL);
    406 
    407 		wskbd_console_device = sc;
    408 
    409 		printf(": console keyboard");
    410 
    411 #if NWSDISPLAY > 0
    412 		if ((sc->sc_displaydv = wsdisplay_set_console_kbd(self)))
    413 			printf(", using %s", sc->sc_displaydv->dv_xname);
    414 #endif
    415 	}
    416 	printf("\n");
    417 
    418 #if NWSMUX > 0
    419 	if (mux != WSKBDDEVCF_MUX_DEFAULT)
    420 		wsmux_attach(mux, WSMUX_KBD, &sc->sc_dv, &sc->sc_events,
    421 			     &sc->sc_mux, &wskbd_muxops);
    422 #endif
    423 
    424 }
    425 
    426 void
    427 wskbd_cnattach(consops, conscookie, mapdata)
    428 	const struct wskbd_consops *consops;
    429 	void *conscookie;
    430 	const struct wskbd_mapdata *mapdata;
    431 {
    432 	KASSERT(!wskbd_console_initted);
    433 
    434 	wskbd_console_data.t_keymap = mapdata;
    435 	wskbd_update_layout(&wskbd_console_data, mapdata->layout);
    436 
    437 	wskbd_console_data.t_consops = consops;
    438 	wskbd_console_data.t_consaccesscookie = conscookie;
    439 
    440 #if NWSDISPLAY > 0
    441 	wsdisplay_set_cons_kbd(wskbd_cngetc, wskbd_cnpollc, wskbd_cnbell);
    442 #endif
    443 
    444 	wskbd_console_initted = 1;
    445 }
    446 
    447 void
    448 wskbd_cndetach()
    449 {
    450 	KASSERT(wskbd_console_initted);
    451 
    452 	wskbd_console_data.t_keymap = 0;
    453 
    454 	wskbd_console_data.t_consops = 0;
    455 	wskbd_console_data.t_consaccesscookie = 0;
    456 
    457 #if NWSDISPLAY > 0
    458 	wsdisplay_unset_cons_kbd();
    459 #endif
    460 
    461 	wskbd_console_initted = 0;
    462 }
    463 
    464 #if NWSDISPLAY > 0
    465 static void
    466 wskbd_repeat(v)
    467 	void *v;
    468 {
    469 	struct wskbd_softc *sc = (struct wskbd_softc *)v;
    470 	int s = spltty();
    471 
    472 	if (!sc->sc_repeating) {
    473 		/*
    474 		 * race condition: a "key up" event came in when wskbd_repeat()
    475 		 * was already called but not yet spltty()'d
    476 		 */
    477 		splx(s);
    478 		return;
    479 	}
    480 	if (sc->sc_displaydv != NULL) {
    481 		int i;
    482 		for (i = 0; i < sc->sc_repeating; i++)
    483 			wsdisplay_kbdinput(sc->sc_displaydv,
    484 					   sc->id->t_symbols[i]);
    485 	}
    486 	callout_reset(&sc->sc_repeat_ch,
    487 	    (hz * sc->sc_keyrepeat_data.delN) / 1000, wskbd_repeat, sc);
    488 	splx(s);
    489 }
    490 #endif
    491 
    492 int
    493 wskbd_activate(self, act)
    494 	struct device *self;
    495 	enum devact act;
    496 {
    497 	/* XXX should we do something more? */
    498 	return (0);
    499 }
    500 
    501 /*
    502  * Detach a keyboard.  To keep track of users of the softc we keep
    503  * a reference count that's incremented while inside, e.g., read.
    504  * If the keyboard is active and the reference count is > 0 (0 is the
    505  * normal state) we post an event and then wait for the process
    506  * that had the reference to wake us up again.  Then we blow away the
    507  * vnode and return (which will deallocate the softc).
    508  */
    509 int
    510 wskbd_detach(self, flags)
    511 	struct device  *self;
    512 	int flags;
    513 {
    514 	struct wskbd_softc *sc = (struct wskbd_softc *)self;
    515 	struct wseventvar *evar;
    516 	int maj, mn;
    517 	int s;
    518 #if NWSMUX > 0
    519 	int mux;
    520 
    521 	mux = sc->sc_dv.dv_cfdata->wskbddevcf_mux;
    522 	if (mux != WSMOUSEDEVCF_MUX_DEFAULT)
    523 		wsmux_detach(mux, &sc->sc_dv);
    524 #endif
    525 
    526 	evar = &sc->sc_events;
    527 	if (evar->io) {
    528 		s = spltty();
    529 		if (--sc->sc_refcnt >= 0) {
    530 			/* Wake everyone by generating a dummy event. */
    531 			if (++evar->put >= WSEVENT_QSIZE)
    532 				evar->put = 0;
    533 			WSEVENT_WAKEUP(evar);
    534 			/* Wait for processes to go away. */
    535 			if (tsleep(sc, PZERO, "wskdet", hz * 60))
    536 				printf("wskbd_detach: %s didn't detach\n",
    537 				       sc->sc_dv.dv_xname);
    538 		}
    539 		splx(s);
    540 	}
    541 
    542 	/* locate the major number */
    543 	for (maj = 0; maj < nchrdev; maj++)
    544 		if (cdevsw[maj].d_open == wskbdopen)
    545 			break;
    546 
    547 	/* Nuke the vnodes for any open instances. */
    548 	mn = self->dv_unit;
    549 	vdevgone(maj, mn, mn, VCHR);
    550 
    551 	return (0);
    552 }
    553 
    554 void
    555 wskbd_input(dev, type, value)
    556 	struct device *dev;
    557 	u_int type;
    558 	int value;
    559 {
    560 	struct wskbd_softc *sc = (struct wskbd_softc *)dev;
    561 	struct wscons_event *ev;
    562 	struct wseventvar *evar;
    563 	struct timeval xxxtime;
    564 #if NWSDISPLAY > 0
    565 	int num, i;
    566 #endif
    567 	int put;
    568 
    569 #if NWSDISPLAY > 0
    570 	if (sc->sc_repeating) {
    571 		sc->sc_repeating = 0;
    572 		callout_stop(&sc->sc_repeat_ch);
    573 	}
    574 
    575 	/*
    576 	 * If /dev/wskbd is not connected in event mode translate and
    577 	 * send upstream.
    578 	 */
    579 	if (sc->sc_translating) {
    580 		num = wskbd_translate(sc->id, type, value);
    581 		if (num > 0) {
    582 			if (sc->sc_displaydv != NULL) {
    583 				for (i = 0; i < num; i++)
    584 					wsdisplay_kbdinput(sc->sc_displaydv,
    585 						sc->id->t_symbols[i]);
    586 			}
    587 
    588 			sc->sc_repeating = num;
    589 			callout_reset(&sc->sc_repeat_ch,
    590 			    (hz * sc->sc_keyrepeat_data.del1) / 1000,
    591 			    wskbd_repeat, sc);
    592 		}
    593 		return;
    594 	}
    595 #endif
    596 
    597 	/*
    598 	 * Keyboard is generating events.  Turn this keystroke into an
    599 	 * event and put it in the queue.  If the queue is full, the
    600 	 * keystroke is lost (sorry!).
    601 	 */
    602 
    603 	/* no one to receive; punt!*/
    604 	if (!sc->sc_ready)
    605 		return;
    606 
    607 #if NWSMUX > 0
    608 	if (sc->sc_mux)
    609 		evar = &sc->sc_mux->sc_events;
    610 	else
    611 #endif
    612 		evar = &sc->sc_events;
    613 
    614 	put = evar->put;
    615 	ev = &evar->q[put];
    616 	put = (put + 1) % WSEVENT_QSIZE;
    617 	if (put == evar->get) {
    618 		log(LOG_WARNING, "%s: event queue overflow\n",
    619 		    sc->sc_dv.dv_xname);
    620 		return;
    621 	}
    622 	ev->type = type;
    623 	ev->value = value;
    624 	microtime(&xxxtime);
    625 	TIMEVAL_TO_TIMESPEC(&xxxtime, &ev->time);
    626 	evar->put = put;
    627 	WSEVENT_WAKEUP(evar);
    628 }
    629 
    630 #ifdef WSDISPLAY_COMPAT_RAWKBD
    631 void
    632 wskbd_rawinput(dev, buf, len)
    633 	struct device *dev;
    634 	u_char *buf;
    635 	int len;
    636 {
    637 #if NWSDISPLAY > 0
    638 	struct wskbd_softc *sc = (struct wskbd_softc *)dev;
    639 	int i;
    640 
    641 	for (i = 0; i < len; i++)
    642 		wsdisplay_kbdinput(sc->sc_displaydv, buf[i]);
    643 	/* this is KS_GROUP_Ascii */
    644 #endif
    645 }
    646 #endif /* WSDISPLAY_COMPAT_RAWKBD */
    647 
    648 #if NWSDISPLAY > 0
    649 static void
    650 wskbd_holdscreen(sc, hold)
    651 	struct wskbd_softc *sc;
    652 	int hold;
    653 {
    654 	int new_state;
    655 
    656 	if (sc->sc_displaydv != NULL) {
    657 		wsdisplay_kbdholdscreen(sc->sc_displaydv, hold);
    658 		new_state = sc->sc_ledstate;
    659 		if (hold)
    660 			new_state |= WSKBD_LED_SCROLL;
    661 		else
    662 			new_state &= ~WSKBD_LED_SCROLL;
    663 		if (new_state != sc->sc_ledstate) {
    664 			(*sc->sc_accessops->set_leds)(sc->sc_accesscookie,
    665 						      new_state);
    666 			sc->sc_ledstate = new_state;
    667 		}
    668 	}
    669 }
    670 #endif
    671 
    672 static int
    673 wskbd_enable(sc, on)
    674 	struct wskbd_softc *sc;
    675 	int on;
    676 {
    677 	int res;
    678 
    679 	/* XXX reference count? */
    680 	if (!on && (!sc->sc_translating
    681 #if NWSDISPLAY > 0
    682 		    || sc->sc_displaydv
    683 #endif
    684 		))
    685 		return (EBUSY);
    686 
    687 	res = (*sc->sc_accessops->enable)(sc->sc_accesscookie, on);
    688 	return (res);
    689 }
    690 
    691 int
    692 wskbdopen(dev, flags, mode, p)
    693 	dev_t dev;
    694 	int flags, mode;
    695 	struct proc *p;
    696 {
    697 	struct wskbd_softc *sc;
    698 	int unit;
    699 
    700 	unit = minor(dev);
    701 	if (unit >= wskbd_cd.cd_ndevs ||	/* make sure it was attached */
    702 	    (sc = wskbd_cd.cd_devs[unit]) == NULL)
    703 		return (ENXIO);
    704 
    705 	if (sc->sc_dying)
    706 		return (EIO);
    707 
    708 	if (!(flags & FREAD)) {
    709 		/* Not opening for read, only ioctl is available. */
    710 		return (0);
    711 	}
    712 
    713 #if NWSMUX > 0
    714 	if (sc->sc_mux)
    715 		return (EBUSY);
    716 #endif
    717 
    718 	if (sc->sc_events.io)			/* and that it's not in use */
    719 		return (EBUSY);
    720 
    721 	sc->sc_events.io = p;
    722 	wsevent_init(&sc->sc_events);		/* may cause sleep */
    723 
    724 	sc->sc_translating = 0;
    725 	sc->sc_ready = 1;			/* start accepting events */
    726 
    727 	wskbd_enable(sc, 1);
    728 	return (0);
    729 }
    730 
    731 int
    732 wskbdclose(dev, flags, mode, p)
    733 	dev_t dev;
    734 	int flags, mode;
    735 	struct proc *p;
    736 {
    737 	return (wskbddoclose(wskbd_cd.cd_devs[minor(dev)], flags, mode, p));
    738 }
    739 
    740 int
    741 wskbddoclose(dv, flags, mode, p)
    742 	struct device *dv;
    743 	int flags, mode;
    744 	struct proc *p;
    745 {
    746 	struct wskbd_softc *sc = (struct wskbd_softc *)dv;
    747 
    748 	if (!(flags & FREAD)) {
    749 		/* Nothing to do, because open didn't do anything. */
    750 		return (0);
    751 	}
    752 
    753 	sc->sc_ready = 0;			/* stop accepting events */
    754 	sc->sc_translating = 1;
    755 
    756 	wsevent_fini(&sc->sc_events);
    757 	sc->sc_events.io = NULL;
    758 
    759 	wskbd_enable(sc, 0);
    760 	return (0);
    761 }
    762 
    763 int
    764 wskbdread(dev, uio, flags)
    765 	dev_t dev;
    766 	struct uio *uio;
    767 	int flags;
    768 {
    769 	struct wskbd_softc *sc = wskbd_cd.cd_devs[minor(dev)];
    770 	int error;
    771 
    772 	if (sc->sc_dying)
    773 		return (EIO);
    774 
    775 	sc->sc_refcnt++;
    776 	error = wsevent_read(&sc->sc_events, uio, flags);
    777 	if (--sc->sc_refcnt < 0) {
    778 		wakeup(sc);
    779 		error = EIO;
    780 	}
    781 	return (error);
    782 }
    783 
    784 int
    785 wskbdioctl(dev, cmd, data, flag, p)
    786 	dev_t dev;
    787 	u_long cmd;
    788 	caddr_t data;
    789 	int flag;
    790 	struct proc *p;
    791 {
    792 	return (wskbddoioctl(wskbd_cd.cd_devs[minor(dev)], cmd, data, flag,p));
    793 }
    794 
    795 /* A wrapper around the ioctl() workhorse to make reference counting easy. */
    796 int
    797 wskbddoioctl(dv, cmd, data, flag, p)
    798 	struct device *dv;
    799 	u_long cmd;
    800 	caddr_t data;
    801 	int flag;
    802 	struct proc *p;
    803 {
    804 	struct wskbd_softc *sc = (struct wskbd_softc *)dv;
    805 	int error;
    806 
    807 	sc->sc_refcnt++;
    808 	error = wskbd_do_ioctl(sc, cmd, data, flag, p);
    809 	if (--sc->sc_refcnt < 0)
    810 		wakeup(sc);
    811 	return (error);
    812 }
    813 
    814 int
    815 wskbd_do_ioctl(sc, cmd, data, flag, p)
    816 	struct wskbd_softc *sc;
    817 	u_long cmd;
    818 	caddr_t data;
    819 	int flag;
    820 	struct proc *p;
    821 {
    822 	int error;
    823 
    824 	/*
    825 	 * Try the generic ioctls that the wskbd interface supports.
    826 	 */
    827 	switch (cmd) {
    828 	case FIONBIO:		/* we will remove this someday (soon???) */
    829 		return (0);
    830 
    831 	case FIOASYNC:
    832 		sc->sc_events.async = *(int *)data != 0;
    833 		return (0);
    834 
    835 	case TIOCSPGRP:
    836 		if (*(int *)data != sc->sc_events.io->p_pgid)
    837 			return (EPERM);
    838 		return (0);
    839 	}
    840 
    841 	/*
    842 	 * Try the keyboard driver for WSKBDIO ioctls.  It returns -1
    843 	 * if it didn't recognize the request.
    844 	 */
    845 	error = wskbd_displayioctl((struct device *)sc, cmd, data, flag, p);
    846 	return (error != -1 ? error : ENOTTY);
    847 }
    848 
    849 /*
    850  * WSKBDIO ioctls, handled in both emulation mode and in ``raw'' mode.
    851  * Some of these have no real effect in raw mode, however.
    852  */
    853 static int
    854 wskbd_displayioctl(dev, cmd, data, flag, p)
    855 	struct device *dev;
    856 	u_long cmd;
    857 	caddr_t data;
    858 	int flag;
    859 	struct proc *p;
    860 {
    861 	struct wskbd_softc *sc = (struct wskbd_softc *)dev;
    862 	struct wskbd_bell_data *ubdp, *kbdp;
    863 	struct wskbd_keyrepeat_data *ukdp, *kkdp;
    864 	struct wskbd_map_data *umdp;
    865 	struct wskbd_mapdata md;
    866 	kbd_t enc;
    867 	void *buf;
    868 	int len, error;
    869 
    870 	switch (cmd) {
    871 #define	SETBELL(dstp, srcp, dfltp)					\
    872     do {								\
    873 	(dstp)->pitch = ((srcp)->which & WSKBD_BELL_DOPITCH) ?		\
    874 	    (srcp)->pitch : (dfltp)->pitch;				\
    875 	(dstp)->period = ((srcp)->which & WSKBD_BELL_DOPERIOD) ?	\
    876 	    (srcp)->period : (dfltp)->period;				\
    877 	(dstp)->volume = ((srcp)->which & WSKBD_BELL_DOVOLUME) ?	\
    878 	    (srcp)->volume : (dfltp)->volume;				\
    879 	(dstp)->which = WSKBD_BELL_DOALL;				\
    880     } while (0)
    881 
    882 	case WSKBDIO_BELL:
    883 		if ((flag & FWRITE) == 0)
    884 			return (EACCES);
    885 		return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie,
    886 		    WSKBDIO_COMPLEXBELL, (caddr_t)&sc->sc_bell_data, flag, p));
    887 
    888 	case WSKBDIO_COMPLEXBELL:
    889 		if ((flag & FWRITE) == 0)
    890 			return (EACCES);
    891 		ubdp = (struct wskbd_bell_data *)data;
    892 		SETBELL(ubdp, ubdp, &sc->sc_bell_data);
    893 		return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie,
    894 		    WSKBDIO_COMPLEXBELL, (caddr_t)ubdp, flag, p));
    895 
    896 	case WSKBDIO_SETBELL:
    897 		if ((flag & FWRITE) == 0)
    898 			return (EACCES);
    899 		kbdp = &sc->sc_bell_data;
    900 setbell:
    901 		ubdp = (struct wskbd_bell_data *)data;
    902 		SETBELL(kbdp, ubdp, kbdp);
    903 		return (0);
    904 
    905 	case WSKBDIO_GETBELL:
    906 		kbdp = &sc->sc_bell_data;
    907 getbell:
    908 		ubdp = (struct wskbd_bell_data *)data;
    909 		SETBELL(ubdp, kbdp, kbdp);
    910 		return (0);
    911 
    912 	case WSKBDIO_SETDEFAULTBELL:
    913 		if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
    914 			return (error);
    915 		kbdp = &wskbd_default_bell_data;
    916 		goto setbell;
    917 
    918 
    919 	case WSKBDIO_GETDEFAULTBELL:
    920 		kbdp = &wskbd_default_bell_data;
    921 		goto getbell;
    922 
    923 #undef SETBELL
    924 
    925 #define	SETKEYREPEAT(dstp, srcp, dfltp)					\
    926     do {								\
    927 	(dstp)->del1 = ((srcp)->which & WSKBD_KEYREPEAT_DODEL1) ?	\
    928 	    (srcp)->del1 : (dfltp)->del1;				\
    929 	(dstp)->delN = ((srcp)->which & WSKBD_KEYREPEAT_DODELN) ?	\
    930 	    (srcp)->delN : (dfltp)->delN;				\
    931 	(dstp)->which = WSKBD_KEYREPEAT_DOALL;				\
    932     } while (0)
    933 
    934 	case WSKBDIO_SETKEYREPEAT:
    935 		if ((flag & FWRITE) == 0)
    936 			return (EACCES);
    937 		kkdp = &sc->sc_keyrepeat_data;
    938 setkeyrepeat:
    939 		ukdp = (struct wskbd_keyrepeat_data *)data;
    940 		SETKEYREPEAT(kkdp, ukdp, kkdp);
    941 		return (0);
    942 
    943 	case WSKBDIO_GETKEYREPEAT:
    944 		kkdp = &sc->sc_keyrepeat_data;
    945 getkeyrepeat:
    946 		ukdp = (struct wskbd_keyrepeat_data *)data;
    947 		SETKEYREPEAT(ukdp, kkdp, kkdp);
    948 		return (0);
    949 
    950 	case WSKBDIO_SETDEFAULTKEYREPEAT:
    951 		if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
    952 			return (error);
    953 		kkdp = &wskbd_default_keyrepeat_data;
    954 		goto setkeyrepeat;
    955 
    956 
    957 	case WSKBDIO_GETDEFAULTKEYREPEAT:
    958 		kkdp = &wskbd_default_keyrepeat_data;
    959 		goto getkeyrepeat;
    960 
    961 #undef SETKEYREPEAT
    962 
    963 	case WSKBDIO_SETMAP:
    964 		if ((flag & FWRITE) == 0)
    965 			return (EACCES);
    966 		umdp = (struct wskbd_map_data *)data;
    967 		len = umdp->maplen*sizeof(struct wscons_keymap);
    968 		buf = malloc(len, M_TEMP, M_WAITOK);
    969 		error = copyin(umdp->map, buf, len);
    970 		if (error == 0) {
    971 			wskbd_init_keymap(umdp->maplen,
    972 					  &sc->sc_map, &sc->sc_maplen);
    973 			memcpy(sc->sc_map, buf, len);
    974 			/* drop the variant bits handled by the map */
    975 			sc->sc_layout = KB_USER |
    976 			      (KB_VARIANT(sc->sc_layout) & KB_HANDLEDBYWSKBD);
    977 			wskbd_update_layout(sc->id, sc->sc_layout);
    978 		}
    979 		free(buf, M_TEMP);
    980 		return(error);
    981 
    982 	case WSKBDIO_GETMAP:
    983 		umdp = (struct wskbd_map_data *)data;
    984 		if (umdp->maplen > sc->sc_maplen)
    985 			umdp->maplen = sc->sc_maplen;
    986 		error = copyout(sc->sc_map, umdp->map,
    987 				umdp->maplen*sizeof(struct wscons_keymap));
    988 		return(error);
    989 
    990 	case WSKBDIO_GETENCODING:
    991 		*((kbd_t *) data) = sc->sc_layout;
    992 		return(0);
    993 
    994 	case WSKBDIO_SETENCODING:
    995 		if ((flag & FWRITE) == 0)
    996 			return (EACCES);
    997 		enc = *((kbd_t *)data);
    998 		if (KB_ENCODING(enc) == KB_USER) {
    999 			/* user map must already be loaded */
   1000 			if (KB_ENCODING(sc->sc_layout) != KB_USER)
   1001 				return (EINVAL);
   1002 			/* map variants make no sense */
   1003 			if (KB_VARIANT(enc) & ~KB_HANDLEDBYWSKBD)
   1004 				return (EINVAL);
   1005 		} else {
   1006 			md = *(sc->id->t_keymap); /* structure assignment */
   1007 			md.layout = enc;
   1008 			error = wskbd_load_keymap(&md, &sc->sc_map,
   1009 						  &sc->sc_maplen);
   1010 			if (error)
   1011 				return (error);
   1012 		}
   1013 		sc->sc_layout = enc;
   1014 		wskbd_update_layout(sc->id, enc);
   1015 		return (0);
   1016 	}
   1017 
   1018 	/*
   1019 	 * Try the keyboard driver for WSKBDIO ioctls.  It returns -1
   1020 	 * if it didn't recognize the request, and in turn we return
   1021 	 * -1 if we didn't recognize the request.
   1022 	 */
   1023 /* printf("kbdaccess\n"); */
   1024 	error = (*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, data,
   1025 					   flag, p);
   1026 #ifdef WSDISPLAY_COMPAT_RAWKBD
   1027 	if (!error && cmd == WSKBDIO_SETMODE && *(int *)data == WSKBD_RAW) {
   1028 		int s = spltty();
   1029 		sc->id->t_modifiers &= ~(MOD_SHIFT_L | MOD_SHIFT_R
   1030 					 | MOD_CONTROL_L | MOD_CONTROL_R
   1031 					 | MOD_META_L | MOD_META_R
   1032 					 | MOD_COMMAND
   1033 					 | MOD_COMMAND1 | MOD_COMMAND2);
   1034 #if NWSDISPLAY > 0
   1035 		if (sc->sc_repeating) {
   1036 			sc->sc_repeating = 0;
   1037 			callout_stop(&sc->sc_repeat_ch);
   1038 		}
   1039 #endif
   1040 		splx(s);
   1041 	}
   1042 #endif
   1043 	return (error);
   1044 }
   1045 
   1046 int
   1047 wskbdpoll(dev, events, p)
   1048 	dev_t dev;
   1049 	int events;
   1050 	struct proc *p;
   1051 {
   1052 	struct wskbd_softc *sc = wskbd_cd.cd_devs[minor(dev)];
   1053 
   1054 	return (wsevent_poll(&sc->sc_events, events, p));
   1055 }
   1056 
   1057 #if NWSDISPLAY > 0
   1058 
   1059 int
   1060 wskbd_pickfree()
   1061 {
   1062 	int i;
   1063 	struct wskbd_softc *sc;
   1064 
   1065 	for (i = 0; i < wskbd_cd.cd_ndevs; i++) {
   1066 		if ((sc = wskbd_cd.cd_devs[i]) == NULL)
   1067 			continue;
   1068 		if (sc->sc_displaydv == NULL)
   1069 			return (i);
   1070 	}
   1071 	return (-1);
   1072 }
   1073 
   1074 struct device *
   1075 wskbd_set_console_display(displaydv, muxsc)
   1076 	struct device *displaydv;
   1077 	struct wsmux_softc *muxsc;
   1078 {
   1079 	struct wskbd_softc *sc = wskbd_console_device;
   1080 
   1081 	if (!sc)
   1082 		return (0);
   1083 	sc->sc_displaydv = displaydv;
   1084 	(void)wsmux_attach_sc(muxsc, WSMUX_KBD, &sc->sc_dv, &sc->sc_events,
   1085 			      &sc->sc_mux, &wskbd_muxops);
   1086 	return (&sc->sc_dv);
   1087 }
   1088 
   1089 int
   1090 wskbd_set_display(dv, muxsc)
   1091 	struct device *dv;
   1092 	struct wsmux_softc *muxsc;
   1093 {
   1094 	struct wskbd_softc *sc = (struct wskbd_softc *)dv;
   1095 	struct device *displaydv = muxsc ? muxsc->sc_displaydv : 0;
   1096 	struct device *odisplaydv;
   1097 	int error;
   1098 
   1099 	DPRINTF(("wskbd_set_display: %s mux=%p disp=%p odisp=%p cons=%d\n",
   1100 		 dv->dv_xname, muxsc, sc->sc_displaydv, displaydv,
   1101 		 sc->sc_isconsole));
   1102 
   1103 	if (sc->sc_isconsole)
   1104 		return (EBUSY);
   1105 
   1106 	if (displaydv) {
   1107 		if (sc->sc_displaydv)
   1108 			return (EBUSY);
   1109 	} else {
   1110 		if (sc->sc_displaydv == NULL)
   1111 			return (ENXIO);
   1112 	}
   1113 
   1114 	odisplaydv = sc->sc_displaydv;
   1115 	sc->sc_displaydv = displaydv;
   1116 
   1117 	error = wskbd_enable(sc, displaydv != NULL);
   1118 	if (error) {
   1119 		sc->sc_displaydv = odisplaydv;
   1120 		return (error);
   1121 	}
   1122 
   1123 	if (displaydv)
   1124 		printf("%s: connecting to %s\n",
   1125 		       sc->sc_dv.dv_xname, displaydv->dv_xname);
   1126 	else
   1127 		printf("%s: disconnecting from %s\n",
   1128 		       sc->sc_dv.dv_xname, odisplaydv->dv_xname);
   1129 
   1130 	return (0);
   1131 }
   1132 
   1133 int
   1134 wskbd_add_mux(unit, muxsc)
   1135 	int unit;
   1136 	struct wsmux_softc *muxsc;
   1137 {
   1138 	struct wskbd_softc *sc;
   1139 
   1140 	DPRINTF(("wskbd_add_mux: %d %s %p\n", unit, muxsc->sc_dv.dv_xname,
   1141 		 muxsc->sc_displaydv));
   1142 	if (unit < 0 || unit >= wskbd_cd.cd_ndevs ||
   1143 	    (sc = wskbd_cd.cd_devs[unit]) == NULL)
   1144 		return (ENXIO);
   1145 
   1146 	if (sc->sc_mux || sc->sc_events.io)
   1147 		return (EBUSY);
   1148 
   1149 	return (wsmux_attach_sc(muxsc, WSMUX_KBD, &sc->sc_dv, &sc->sc_events,
   1150 				&sc->sc_mux, &wskbd_muxops));
   1151 }
   1152 
   1153 int
   1154 wskbd_rem_mux(unit, muxsc)
   1155 	int unit;
   1156 	struct wsmux_softc *muxsc;
   1157 {
   1158 	struct wskbd_softc *sc;
   1159 
   1160 	DPRINTF(("wskbd_rem_mux: %d %s\n", unit, muxsc->sc_dv.dv_xname));
   1161 	if (unit < 0 || unit >= wskbd_cd.cd_ndevs ||
   1162 	    (sc = wskbd_cd.cd_devs[unit]) == NULL)
   1163 		return (ENXIO);
   1164 
   1165 	return (wsmux_detach_sc(muxsc, &sc->sc_dv));
   1166 }
   1167 
   1168 #endif /* NWSDISPLAY > 0 */
   1169 
   1170 /*
   1171  * Console interface.
   1172  */
   1173 int
   1174 wskbd_cngetc(dev)
   1175 	dev_t dev;
   1176 {
   1177 	static int num = 0;
   1178 	static int pos;
   1179 	u_int type;
   1180 	int data;
   1181 	keysym_t ks;
   1182 
   1183 	if (!wskbd_console_initted)
   1184 		return 0;
   1185 
   1186 	if (wskbd_console_device != NULL &&
   1187 	    !wskbd_console_device->sc_translating)
   1188 		return 0;
   1189 
   1190 	for(;;) {
   1191 		if (num-- > 0) {
   1192 			ks = wskbd_console_data.t_symbols[pos++];
   1193 			if (KS_GROUP(ks) == KS_GROUP_Ascii)
   1194 				return (KS_VALUE(ks));
   1195 		} else {
   1196 			(*wskbd_console_data.t_consops->getc)
   1197 				(wskbd_console_data.t_consaccesscookie,
   1198 				 &type, &data);
   1199 			num = wskbd_translate(&wskbd_console_data, type, data);
   1200 			pos = 0;
   1201 		}
   1202 	}
   1203 }
   1204 
   1205 void
   1206 wskbd_cnpollc(dev, poll)
   1207 	dev_t dev;
   1208 	int poll;
   1209 {
   1210 
   1211 	if (!wskbd_console_initted)
   1212 		return;
   1213 
   1214 	if (wskbd_console_device != NULL &&
   1215 	    !wskbd_console_device->sc_translating)
   1216 		return;
   1217 
   1218 	(*wskbd_console_data.t_consops->pollc)
   1219 	    (wskbd_console_data.t_consaccesscookie, poll);
   1220 }
   1221 
   1222 void
   1223 wskbd_cnbell(dev, pitch, period, volume)
   1224 	dev_t dev;
   1225 	u_int pitch, period, volume;
   1226 {
   1227 
   1228 	if (!wskbd_console_initted)
   1229 		return;
   1230 
   1231 	if (wskbd_console_data.t_consops->bell != NULL)
   1232 		(*wskbd_console_data.t_consops->bell)
   1233 		    (wskbd_console_data.t_consaccesscookie, pitch, period,
   1234 			volume);
   1235 }
   1236 
   1237 static inline void
   1238 update_leds(id)
   1239 	struct wskbd_internal *id;
   1240 {
   1241 	int new_state;
   1242 
   1243 	new_state = 0;
   1244 	if (id->t_modifiers & (MOD_SHIFTLOCK | MOD_CAPSLOCK))
   1245 		new_state |= WSKBD_LED_CAPS;
   1246 	if (id->t_modifiers & MOD_NUMLOCK)
   1247 		new_state |= WSKBD_LED_NUM;
   1248 	if (id->t_modifiers & MOD_COMPOSE)
   1249 		new_state |= WSKBD_LED_COMPOSE;
   1250 	if (id->t_modifiers & MOD_HOLDSCREEN)
   1251 		new_state |= WSKBD_LED_SCROLL;
   1252 
   1253 	if (id->t_sc && new_state != id->t_sc->sc_ledstate) {
   1254 		(*id->t_sc->sc_accessops->set_leds)
   1255 		    (id->t_sc->sc_accesscookie, new_state);
   1256 		id->t_sc->sc_ledstate = new_state;
   1257 	}
   1258 }
   1259 
   1260 static inline void
   1261 update_modifier(id, type, toggle, mask)
   1262 	struct wskbd_internal *id;
   1263 	u_int type;
   1264 	int toggle;
   1265 	int mask;
   1266 {
   1267 	if (toggle) {
   1268 		if (type == WSCONS_EVENT_KEY_DOWN)
   1269 			id->t_modifiers ^= mask;
   1270 	} else {
   1271 		if (type == WSCONS_EVENT_KEY_DOWN)
   1272 			id->t_modifiers |= mask;
   1273 		else
   1274 			id->t_modifiers &= ~mask;
   1275 	}
   1276 }
   1277 
   1278 static int
   1279 internal_command(sc, type, ksym)
   1280 	struct wskbd_softc *sc;
   1281 	u_int *type;
   1282 	keysym_t ksym;
   1283 {
   1284 	switch (ksym) {
   1285 	case KS_Cmd:
   1286 		update_modifier(sc->id, *type, 0, MOD_COMMAND);
   1287 		break;
   1288 
   1289 	case KS_Cmd1:
   1290 		update_modifier(sc->id, *type, 0, MOD_COMMAND1);
   1291 		break;
   1292 
   1293 	case KS_Cmd2:
   1294 		update_modifier(sc->id, *type, 0, MOD_COMMAND2);
   1295 		break;
   1296 	}
   1297 
   1298 	if (*type != WSCONS_EVENT_KEY_DOWN ||
   1299 	    (! MOD_ONESET(sc->id, MOD_COMMAND) &&
   1300 	     ! MOD_ALLSET(sc->id, MOD_COMMAND1 | MOD_COMMAND2)))
   1301 		return (0);
   1302 
   1303 	switch (ksym) {
   1304 #ifdef DDB
   1305 	case KS_Cmd_Debugger:
   1306 		if (sc->sc_isconsole)
   1307 			console_debugger();
   1308 		/* discard this key (ddb discarded command modifiers) */
   1309 		*type = WSCONS_EVENT_KEY_UP;
   1310 		return (1);
   1311 #endif
   1312 
   1313 #if NWSDISPLAY > 0
   1314 	case KS_Cmd_Screen0:
   1315 	case KS_Cmd_Screen1:
   1316 	case KS_Cmd_Screen2:
   1317 	case KS_Cmd_Screen3:
   1318 	case KS_Cmd_Screen4:
   1319 	case KS_Cmd_Screen5:
   1320 	case KS_Cmd_Screen6:
   1321 	case KS_Cmd_Screen7:
   1322 	case KS_Cmd_Screen8:
   1323 	case KS_Cmd_Screen9:
   1324 		wsdisplay_switch(sc->sc_displaydv, ksym - KS_Cmd_Screen0, 0);
   1325 		return (1);
   1326 	case KS_Cmd_ResetEmul:
   1327 		wsdisplay_reset(sc->sc_displaydv, WSDISPLAY_RESETEMUL);
   1328 		return (1);
   1329 	case KS_Cmd_ResetClose:
   1330 		wsdisplay_reset(sc->sc_displaydv, WSDISPLAY_RESETCLOSE);
   1331 		return (1);
   1332 #endif
   1333 	}
   1334 	return (0);
   1335 }
   1336 
   1337 static int
   1338 wskbd_translate(id, type, value)
   1339 	struct wskbd_internal *id;
   1340 	u_int type;
   1341 	int value;
   1342 {
   1343 	struct wskbd_softc *sc = id->t_sc;
   1344 	keysym_t ksym, res, *group;
   1345 	struct wscons_keymap kpbuf, *kp;
   1346 	int iscommand = 0;
   1347 
   1348 	if (type == WSCONS_EVENT_ALL_KEYS_UP) {
   1349 		id->t_modifiers &= ~(MOD_SHIFT_L | MOD_SHIFT_R
   1350 				| MOD_CONTROL_L | MOD_CONTROL_R
   1351 				| MOD_META_L | MOD_META_R
   1352 				| MOD_MODESHIFT
   1353 				| MOD_COMMAND | MOD_COMMAND1 | MOD_COMMAND2);
   1354 		update_leds(id);
   1355 		return (0);
   1356 	}
   1357 
   1358 	if (sc != NULL) {
   1359 		if (value < 0 || value >= sc->sc_maplen) {
   1360 #ifdef DEBUG
   1361 			printf("wskbd_translate: keycode %d out of range\n",
   1362 			       value);
   1363 #endif
   1364 			return (0);
   1365 		}
   1366 		kp = sc->sc_map + value;
   1367 	} else {
   1368 		kp = &kpbuf;
   1369 		wskbd_get_mapentry(id->t_keymap, value, kp);
   1370 	}
   1371 
   1372 	/* if this key has a command, process it first */
   1373 	if (sc != NULL && kp->command != KS_voidSymbol)
   1374 		iscommand = internal_command(sc, &type, kp->command);
   1375 
   1376 	/* Now update modifiers */
   1377 	switch (kp->group1[0]) {
   1378 	case KS_Shift_L:
   1379 		update_modifier(id, type, 0, MOD_SHIFT_L);
   1380 		break;
   1381 
   1382 	case KS_Shift_R:
   1383 		update_modifier(id, type, 0, MOD_SHIFT_R);
   1384 		break;
   1385 
   1386 	case KS_Shift_Lock:
   1387 		update_modifier(id, type, 1, MOD_SHIFTLOCK);
   1388 		break;
   1389 
   1390 	case KS_Caps_Lock:
   1391 		update_modifier(id, type, 1, MOD_CAPSLOCK);
   1392 		break;
   1393 
   1394 	case KS_Control_L:
   1395 		update_modifier(id, type, 0, MOD_CONTROL_L);
   1396 		break;
   1397 
   1398 	case KS_Control_R:
   1399 		update_modifier(id, type, 0, MOD_CONTROL_R);
   1400 		break;
   1401 
   1402 	case KS_Alt_L:
   1403 		update_modifier(id, type, 0, MOD_META_L);
   1404 		break;
   1405 
   1406 	case KS_Alt_R:
   1407 		update_modifier(id, type, 0, MOD_META_R);
   1408 		break;
   1409 
   1410 	case KS_Mode_switch:
   1411 		update_modifier(id, type, 0, MOD_MODESHIFT);
   1412 		break;
   1413 
   1414 	case KS_Num_Lock:
   1415 		update_modifier(id, type, 1, MOD_NUMLOCK);
   1416 		break;
   1417 
   1418 #if NWSDISPLAY > 0
   1419 	case KS_Hold_Screen:
   1420 		if (sc != NULL) {
   1421 			update_modifier(id, type, 1, MOD_HOLDSCREEN);
   1422 			wskbd_holdscreen(sc, id->t_modifiers & MOD_HOLDSCREEN);
   1423 		}
   1424 		break;
   1425 #endif
   1426 	}
   1427 
   1428 	/* If this is a key release or we are in command mode, we are done */
   1429 	if (type != WSCONS_EVENT_KEY_DOWN || iscommand) {
   1430 		update_leds(id);
   1431 		return (0);
   1432 	}
   1433 
   1434 	/* Get the keysym */
   1435 	if (id->t_modifiers & MOD_MODESHIFT)
   1436 		group = & kp->group2[0];
   1437 	else
   1438 		group = & kp->group1[0];
   1439 
   1440 	if ((id->t_modifiers & MOD_NUMLOCK) != 0 &&
   1441 	    KS_GROUP(group[1]) == KS_GROUP_Keypad) {
   1442 		if (MOD_ONESET(id, MOD_ANYSHIFT))
   1443 			ksym = group[0];
   1444 		else
   1445 			ksym = group[1];
   1446 	} else if (! MOD_ONESET(id, MOD_ANYSHIFT | MOD_CAPSLOCK)) {
   1447 		ksym = group[0];
   1448 	} else if (MOD_ONESET(id, MOD_CAPSLOCK)) {
   1449 		if (! MOD_ONESET(id, MOD_SHIFT_L | MOD_SHIFT_R))
   1450 			ksym = group[0];
   1451 		else
   1452 			ksym = group[1];
   1453 		if (ksym >= KS_a && ksym <= KS_z)
   1454 			ksym += KS_A - KS_a;
   1455 		else if (ksym >= KS_agrave && ksym <= KS_thorn &&
   1456 			 ksym != KS_division)
   1457 			ksym += KS_Agrave - KS_agrave;
   1458 	} else if (MOD_ONESET(id, MOD_ANYSHIFT)) {
   1459 		ksym = group[1];
   1460 	} else {
   1461 		ksym = group[0];
   1462 	}
   1463 
   1464 	/* Process compose sequence and dead accents */
   1465 	res = KS_voidSymbol;
   1466 
   1467 	switch (KS_GROUP(ksym)) {
   1468 	case KS_GROUP_Ascii:
   1469 	case KS_GROUP_Keypad:
   1470 	case KS_GROUP_Function:
   1471 		res = ksym;
   1472 		break;
   1473 
   1474 	case KS_GROUP_Mod:
   1475 		if (ksym == KS_Multi_key) {
   1476 			update_modifier(id, 1, 0, MOD_COMPOSE);
   1477 			id->t_composelen = 2;
   1478 		}
   1479 		break;
   1480 
   1481 	case KS_GROUP_Dead:
   1482 		if (id->t_composelen == 0) {
   1483 			update_modifier(id, 1, 0, MOD_COMPOSE);
   1484 			id->t_composelen = 1;
   1485 			id->t_composebuf[0] = ksym;
   1486 		} else
   1487 			res = ksym;
   1488 		break;
   1489 	}
   1490 
   1491 	if (res == KS_voidSymbol) {
   1492 		update_leds(id);
   1493 		return (0);
   1494 	}
   1495 
   1496 	if (id->t_composelen > 0) {
   1497 		id->t_composebuf[2 - id->t_composelen] = res;
   1498 		if (--id->t_composelen == 0) {
   1499 			res = wskbd_compose_value(id->t_composebuf);
   1500 			update_modifier(id, 0, 0, MOD_COMPOSE);
   1501 		} else {
   1502 			return (0);
   1503 		}
   1504 	}
   1505 
   1506 	update_leds(id);
   1507 
   1508 	/* We are done, return the symbol */
   1509 	if (KS_GROUP(res) == KS_GROUP_Ascii) {
   1510 		if (MOD_ONESET(id, MOD_ANYCONTROL)) {
   1511 			if ((res >= KS_at && res <= KS_z) || res == KS_space)
   1512 				res = res & 0x1f;
   1513 			else if (res == KS_2)
   1514 				res = 0x00;
   1515 			else if (res >= KS_3 && res <= KS_7)
   1516 				res = KS_Escape + (res - KS_3);
   1517 			else if (res == KS_8)
   1518 				res = KS_Delete;
   1519 		}
   1520 		if (MOD_ONESET(id, MOD_ANYMETA)) {
   1521 			if (id->t_flags & WSKFL_METAESC) {
   1522 				id->t_symbols[0] = KS_Escape;
   1523 				id->t_symbols[1] = res;
   1524 				return (2);
   1525 			} else
   1526 				res |= 0x80;
   1527 		}
   1528 	}
   1529 
   1530 	id->t_symbols[0] = res;
   1531 	return (1);
   1532 }
   1533