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NetBSD/sys/dev/wscons/wskbd.c

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/* $NetBSD: wskbd.c,v 1.67 2003/01/01 00:10:27 thorpej Exp $ */
/*
* Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.
*
* Keysym translator:
* Contributed to The NetBSD Foundation by Juergen Hannken-Illjes.
*
* 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 Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* 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/wskbd*). Translates incoming bytes to ASCII or
* to `wscons_events' and passes them up to the appropriate reader.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wskbd.c,v 1.67 2003/01/01 00:10:27 thorpej Exp $");
#include "opt_ddb.h"
#include "opt_kgdb.h"
#include "opt_wsdisplay_compat.h"
#include "wsdisplay.h"
#include "wskbd.h"
#include "wsmux.h"
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/tty.h>
#include <sys/signalvar.h>
#include <sys/errno.h>
#include <sys/fcntl.h>
#include <sys/vnode.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wskbdvar.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsksymvar.h>
#include <dev/wscons/wseventvar.h>
#include <dev/wscons/wscons_callbacks.h>
#ifdef KGDB
#include <sys/kgdb.h>
#endif
#ifdef WSKBD_DEBUG
#define DPRINTF(x) if (wskbddebug) printf x
int wskbddebug = 0;
#else
#define DPRINTF(x)
#endif
#include <dev/wscons/wsmuxvar.h>
struct wskbd_internal {
const struct wskbd_mapdata *t_keymap;
const struct wskbd_consops *t_consops;
void *t_consaccesscookie;
int t_modifiers;
int t_composelen; /* remaining entries in t_composebuf */
keysym_t t_composebuf[2];
int t_flags;
#define WSKFL_METAESC 1
#define MAXKEYSYMSPERKEY 2 /* ESC <key> at max */
keysym_t t_symbols[MAXKEYSYMSPERKEY];
struct wskbd_softc *t_sc; /* back pointer */
};
struct wskbd_softc {
struct wsevsrc sc_base;
struct wskbd_internal *id;
const struct wskbd_accessops *sc_accessops;
void *sc_accesscookie;
int sc_ledstate;
int sc_isconsole;
struct wskbd_bell_data sc_bell_data;
struct wskbd_keyrepeat_data sc_keyrepeat_data;
int sc_repeating; /* we've called timeout() */
struct callout sc_repeat_ch;
int sc_translating; /* xlate to chars for emulation */
int sc_maplen; /* number of entries in sc_map */
struct wscons_keymap *sc_map; /* current translation map */
kbd_t sc_layout; /* current layout */
int sc_refcnt;
u_char sc_dying; /* device is being detached */
};
#define MOD_SHIFT_L (1 << 0)
#define MOD_SHIFT_R (1 << 1)
#define MOD_SHIFTLOCK (1 << 2)
#define MOD_CAPSLOCK (1 << 3)
#define MOD_CONTROL_L (1 << 4)
#define MOD_CONTROL_R (1 << 5)
#define MOD_META_L (1 << 6)
#define MOD_META_R (1 << 7)
#define MOD_MODESHIFT (1 << 8)
#define MOD_NUMLOCK (1 << 9)
#define MOD_COMPOSE (1 << 10)
#define MOD_HOLDSCREEN (1 << 11)
#define MOD_COMMAND (1 << 12)
#define MOD_COMMAND1 (1 << 13)
#define MOD_COMMAND2 (1 << 14)
#define MOD_ANYSHIFT (MOD_SHIFT_L | MOD_SHIFT_R | MOD_SHIFTLOCK)
#define MOD_ANYCONTROL (MOD_CONTROL_L | MOD_CONTROL_R)
#define MOD_ANYMETA (MOD_META_L | MOD_META_R)
#define MOD_ONESET(id, mask) (((id)->t_modifiers & (mask)) != 0)
#define MOD_ALLSET(id, mask) (((id)->t_modifiers & (mask)) == (mask))
static int wskbd_match(struct device *, struct cfdata *, void *);
static void wskbd_attach(struct device *, struct device *, void *);
static int wskbd_detach(struct device *, int);
static int wskbd_activate(struct device *, enum devact);
static int wskbd_displayioctl(struct device *, u_long, caddr_t, int,
struct proc *);
#if NWSDISPLAY > 0
static int wskbd_set_display(struct device *, struct wsevsrc *);
#else
#define wskbd_set_display NULL
#endif
static inline void update_leds(struct wskbd_internal *);
static inline void update_modifier(struct wskbd_internal *, u_int, int, int);
static int internal_command(struct wskbd_softc *, u_int *, keysym_t, keysym_t);
static int wskbd_translate(struct wskbd_internal *, u_int, int);
static int wskbd_enable(struct wskbd_softc *, int);
#if NWSDISPLAY > 0
static void change_displayparam(struct wskbd_softc *, int, int, int);
static void wskbd_holdscreen(struct wskbd_softc *, int);
#endif
static int wskbd_do_ioctl_sc(struct wskbd_softc *, u_long, caddr_t, int,
struct proc *);
#if NWSMUX > 0
static int wskbd_mux_open(struct wsevsrc *, struct wseventvar *);
static int wskbd_mux_close(struct wsevsrc *);
#else
#define wskbd_mux_open NULL
#define wskbd_mux_close NULL
#endif
static int wskbd_do_open(struct wskbd_softc *, struct wseventvar *);
static int wskbd_do_ioctl(struct device *, u_long, caddr_t, int, struct proc *);
CFATTACH_DECL(wskbd, sizeof (struct wskbd_softc),
wskbd_match, wskbd_attach, wskbd_detach, wskbd_activate);
extern struct cfdriver wskbd_cd;
dev_type_open(wskbdopen);
dev_type_close(wskbdclose);
dev_type_read(wskbdread);
dev_type_ioctl(wskbdioctl);
dev_type_poll(wskbdpoll);
dev_type_kqfilter(wskbdkqfilter);
const struct cdevsw wskbd_cdevsw = {
wskbdopen, wskbdclose, wskbdread, nowrite, wskbdioctl,
nostop, notty, wskbdpoll, nommap, wskbdkqfilter,
};
#ifndef WSKBD_DEFAULT_BELL_PITCH
#define WSKBD_DEFAULT_BELL_PITCH 1500 /* 1500Hz */
#endif
#ifndef WSKBD_DEFAULT_BELL_PERIOD
#define WSKBD_DEFAULT_BELL_PERIOD 100 /* 100ms */
#endif
#ifndef WSKBD_DEFAULT_BELL_VOLUME
#define WSKBD_DEFAULT_BELL_VOLUME 50 /* 50% volume */
#endif
struct wskbd_bell_data wskbd_default_bell_data = {
WSKBD_BELL_DOALL,
WSKBD_DEFAULT_BELL_PITCH,
WSKBD_DEFAULT_BELL_PERIOD,
WSKBD_DEFAULT_BELL_VOLUME,
};
#ifndef WSKBD_DEFAULT_KEYREPEAT_DEL1
#define WSKBD_DEFAULT_KEYREPEAT_DEL1 400 /* 400ms to start repeating */
#endif
#ifndef WSKBD_DEFAULT_KEYREPEAT_DELN
#define WSKBD_DEFAULT_KEYREPEAT_DELN 100 /* 100ms to between repeats */
#endif
struct wskbd_keyrepeat_data wskbd_default_keyrepeat_data = {
WSKBD_KEYREPEAT_DOALL,
WSKBD_DEFAULT_KEYREPEAT_DEL1,
WSKBD_DEFAULT_KEYREPEAT_DELN,
};
#if NWSDISPLAY > 0 || NWSMUX > 0
struct wssrcops wskbd_srcops = {
WSMUX_KBD,
wskbd_mux_open, wskbd_mux_close, wskbd_do_ioctl,
wskbd_displayioctl, wskbd_set_display
};
#endif
#if NWSDISPLAY > 0
static void wskbd_repeat(void *v);
#endif
static int wskbd_console_initted;
static struct wskbd_softc *wskbd_console_device;
static struct wskbd_internal wskbd_console_data;
static void wskbd_update_layout(struct wskbd_internal *, kbd_t);
static void
wskbd_update_layout(struct wskbd_internal *id, kbd_t enc)
{
if (enc & KB_METAESC)
id->t_flags |= WSKFL_METAESC;
else
id->t_flags &= ~WSKFL_METAESC;
}
/*
* Print function (for parent devices).
*/
int
wskbddevprint(void *aux, const char *pnp)
{
#if 0
struct wskbddev_attach_args *ap = aux;
#endif
if (pnp)
aprint_normal("wskbd at %s", pnp);
#if 0
aprint_normal(" console %d", ap->console);
#endif
return (UNCONF);
}
int
wskbd_match(struct device *parent, struct cfdata *match, void *aux)
{
struct wskbddev_attach_args *ap = aux;
if (match->wskbddevcf_console != WSKBDDEVCF_CONSOLE_UNK) {
/*
* If console-ness of device specified, either match
* exactly (at high priority), or fail.
*/
if (match->wskbddevcf_console != 0 && ap->console != 0)
return (10);
else
return (0);
}
/* If console-ness unspecified, it wins. */
return (1);
}
void
wskbd_attach(struct device *parent, struct device *self, void *aux)
{
struct wskbd_softc *sc = (struct wskbd_softc *)self;
struct wskbddev_attach_args *ap = aux;
#if NWSMUX > 0
int mux, error;
#endif
sc->sc_isconsole = ap->console;
#if NWSMUX > 0 || NWSDISPLAY > 0
sc->sc_base.me_ops = &wskbd_srcops;
#endif
#if NWSMUX > 0
mux = sc->sc_base.me_dv.dv_cfdata->wskbddevcf_mux;
if (ap->console) {
/* Ignore mux for console; it always goes to the console mux. */
/* printf(" (mux %d ignored for console)", mux); */
mux = -1;
}
if (mux >= 0)
printf(" mux %d", mux);
#else
if (sc->sc_base.me_dv.dv_cfdata->wskbddevcf_mux >= 0)
printf(" (mux ignored)");
#endif
if (ap->console) {
sc->id = &wskbd_console_data;
} else {
sc->id = malloc(sizeof(struct wskbd_internal),
M_DEVBUF, M_WAITOK|M_ZERO);
sc->id->t_keymap = ap->keymap;
wskbd_update_layout(sc->id, ap->keymap->layout);
}
callout_init(&sc->sc_repeat_ch);
sc->id->t_sc = sc;
sc->sc_accessops = ap->accessops;
sc->sc_accesscookie = ap->accesscookie;
sc->sc_repeating = 0;
sc->sc_translating = 1;
sc->sc_ledstate = -1; /* force update */
if (wskbd_load_keymap(sc->id->t_keymap,
&sc->sc_map, &sc->sc_maplen) != 0)
panic("cannot load keymap");
sc->sc_layout = sc->id->t_keymap->layout;
/* set default bell and key repeat data */
sc->sc_bell_data = wskbd_default_bell_data;
sc->sc_keyrepeat_data = wskbd_default_keyrepeat_data;
if (ap->console) {
KASSERT(wskbd_console_initted);
KASSERT(wskbd_console_device == NULL);
wskbd_console_device = sc;
printf(": console keyboard");
#if NWSDISPLAY > 0
wsdisplay_set_console_kbd(&sc->sc_base); /* sets me_dispv */
if (sc->sc_base.me_dispdv != NULL)
printf(", using %s", sc->sc_base.me_dispdv->dv_xname);
#endif
}
printf("\n");
#if NWSMUX > 0
if (mux >= 0) {
error = wsmux_attach_sc(wsmux_getmux(mux), &sc->sc_base);
if (error)
printf("%s: attach error=%d\n",
sc->sc_base.me_dv.dv_xname, error);
}
#endif
}
void
wskbd_cnattach(const struct wskbd_consops *consops, void *conscookie,
const struct wskbd_mapdata *mapdata)
{
KASSERT(!wskbd_console_initted);
wskbd_console_data.t_keymap = mapdata;
wskbd_update_layout(&wskbd_console_data, mapdata->layout);
wskbd_console_data.t_consops = consops;
wskbd_console_data.t_consaccesscookie = conscookie;
#if NWSDISPLAY > 0
wsdisplay_set_cons_kbd(wskbd_cngetc, wskbd_cnpollc, wskbd_cnbell);
#endif
wskbd_console_initted = 1;
}
void
wskbd_cndetach(void)
{
KASSERT(wskbd_console_initted);
wskbd_console_data.t_keymap = 0;
wskbd_console_data.t_consops = 0;
wskbd_console_data.t_consaccesscookie = 0;
#if NWSDISPLAY > 0
wsdisplay_unset_cons_kbd();
#endif
wskbd_console_initted = 0;
}
#if NWSDISPLAY > 0
static void
wskbd_repeat(void *v)
{
struct wskbd_softc *sc = (struct wskbd_softc *)v;
int s = spltty();
if (!sc->sc_repeating) {
/*
* race condition: a "key up" event came in when wskbd_repeat()
* was already called but not yet spltty()'d
*/
splx(s);
return;
}
if (sc->sc_base.me_dispdv != NULL) {
int i;
for (i = 0; i < sc->sc_repeating; i++)
wsdisplay_kbdinput(sc->sc_base.me_dispdv,
sc->id->t_symbols[i]);
}
callout_reset(&sc->sc_repeat_ch,
(hz * sc->sc_keyrepeat_data.delN) / 1000, wskbd_repeat, sc);
splx(s);
}
#endif
int
wskbd_activate(struct device *self, enum devact act)
{
struct wskbd_softc *sc = (struct wskbd_softc *)self;
if (act == DVACT_DEACTIVATE)
sc->sc_dying = 1;
return (0);
}
/*
* Detach a keyboard. To keep track of users of the softc we keep
* a reference count that's incremented while inside, e.g., read.
* If the keyboard is active and the reference count is > 0 (0 is the
* normal state) we post an event and then wait for the process
* that had the reference to wake us up again. Then we blow away the
* vnode and return (which will deallocate the softc).
*/
int
wskbd_detach(struct device *self, int flags)
{
struct wskbd_softc *sc = (struct wskbd_softc *)self;
struct wseventvar *evar;
int maj, mn;
int s;
#if NWSMUX > 0
/* Tell parent mux we're leaving. */
if (sc->sc_base.me_parent != NULL)
wsmux_detach_sc(&sc->sc_base);
#endif
if (sc->sc_isconsole) {
KASSERT(wskbd_console_device == sc);
wskbd_console_device = NULL;
}
evar = sc->sc_base.me_evp;
if (evar != NULL && evar->io != NULL) {
s = spltty();
if (--sc->sc_refcnt >= 0) {
/* Wake everyone by generating a dummy event. */
if (++evar->put >= WSEVENT_QSIZE)
evar->put = 0;
WSEVENT_WAKEUP(evar);
/* Wait for processes to go away. */
if (tsleep(sc, PZERO, "wskdet", hz * 60))
printf("wskbd_detach: %s didn't detach\n",
sc->sc_base.me_dv.dv_xname);
}
splx(s);
}
/* locate the major number */
maj = cdevsw_lookup_major(&wskbd_cdevsw);
/* Nuke the vnodes for any open instances. */
mn = self->dv_unit;
vdevgone(maj, mn, mn, VCHR);
return (0);
}
void
wskbd_input(struct device *dev, u_int type, int value)
{
struct wskbd_softc *sc = (struct wskbd_softc *)dev;
struct wscons_event *ev;
struct wseventvar *evar;
struct timeval thistime;
#if NWSDISPLAY > 0
int num, i;
#endif
int put;
#if NWSDISPLAY > 0
if (sc->sc_repeating) {
sc->sc_repeating = 0;
callout_stop(&sc->sc_repeat_ch);
}
/*
* If /dev/wskbdN is not connected in event mode translate and
* send upstream.
*/
if (sc->sc_translating) {
num = wskbd_translate(sc->id, type, value);
if (num > 0) {
if (sc->sc_base.me_dispdv != NULL) {
for (i = 0; i < num; i++)
wsdisplay_kbdinput(
sc->sc_base.me_dispdv,
sc->id->t_symbols[i]);
}
sc->sc_repeating = num;
callout_reset(&sc->sc_repeat_ch,
(hz * sc->sc_keyrepeat_data.del1) / 1000,
wskbd_repeat, sc);
}
return;
}
#endif
/*
* 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!).
*/
evar = sc->sc_base.me_evp;
if (evar == NULL) {
DPRINTF(("wskbd_input: not open\n"));
return;
}
#ifdef DIAGNOSTIC
if (evar->q == NULL) {
printf("wskbd_input: evar->q=NULL\n");
return;
}
#endif
put = evar->put;
ev = &evar->q[put];
put = (put + 1) % WSEVENT_QSIZE;
if (put == evar->get) {
log(LOG_WARNING, "%s: event queue overflow\n",
sc->sc_base.me_dv.dv_xname);
return;
}
ev->type = type;
ev->value = value;
microtime(&thistime);
TIMEVAL_TO_TIMESPEC(&thistime, &ev->time);
evar->put = put;
WSEVENT_WAKEUP(evar);
}
#ifdef WSDISPLAY_COMPAT_RAWKBD
void
wskbd_rawinput(struct device *dev, u_char *buf, int len)
{
#if NWSDISPLAY > 0
struct wskbd_softc *sc = (struct wskbd_softc *)dev;
int i;
if (sc->sc_base.me_dispdv != NULL)
for (i = 0; i < len; i++)
wsdisplay_kbdinput(sc->sc_base.me_dispdv, buf[i]);
/* this is KS_GROUP_Ascii */
#endif
}
#endif /* WSDISPLAY_COMPAT_RAWKBD */
#if NWSDISPLAY > 0
static void
wskbd_holdscreen(struct wskbd_softc *sc, int hold)
{
int new_state;
if (sc->sc_base.me_dispdv != NULL) {
wsdisplay_kbdholdscreen(sc->sc_base.me_dispdv, hold);
new_state = sc->sc_ledstate;
if (hold)
new_state |= WSKBD_LED_SCROLL;
else
new_state &= ~WSKBD_LED_SCROLL;
if (new_state != sc->sc_ledstate) {
(*sc->sc_accessops->set_leds)(sc->sc_accesscookie,
new_state);
sc->sc_ledstate = new_state;
}
}
}
#endif
static int
wskbd_enable(struct wskbd_softc *sc, int on)
{
int error;
#if 0
/* I don't understand the purpose of this code. And it seems to
* break things, so it's out. -- Lennart
*/
if (!on && (!sc->sc_translating
#if NWSDISPLAY > 0
|| sc->sc_base.me_dispdv
#endif
))
return (EBUSY);
#endif
#if NWSDISPLAY > 0
if (sc->sc_base.me_dispdv != NULL)
return (0);
#endif
error = (*sc->sc_accessops->enable)(sc->sc_accesscookie, on);
DPRINTF(("wskbd_enable: sc=%p on=%d res=%d\n", sc, on, error));
return (error);
}
#if NWSMUX > 0
int
wskbd_mux_open(struct wsevsrc *me, struct wseventvar *evp)
{
struct wskbd_softc *sc = (struct wskbd_softc *)me;
if (sc->sc_dying)
return (EIO);
if (sc->sc_base.me_evp != NULL)
return (EBUSY);
return (wskbd_do_open(sc, evp));
}
#endif
int
wskbdopen(dev_t dev, int flags, int mode, struct proc *p)
{
struct wskbd_softc *sc;
struct wseventvar *evar;
int unit, error;
unit = minor(dev);
if (unit >= wskbd_cd.cd_ndevs || /* make sure it was attached */
(sc = wskbd_cd.cd_devs[unit]) == NULL)
return (ENXIO);
#if NWSMUX > 0
DPRINTF(("wskbdopen: %s mux=%p p=%p\n", sc->sc_base.me_dv.dv_xname,
sc->sc_base.me_parent, p));
#endif
if (sc->sc_dying)
return (EIO);
if ((flags & (FREAD | FWRITE)) == FWRITE)
/* Not opening for read, only ioctl is available. */
return (0);
#if NWSMUX > 0
if (sc->sc_base.me_parent != NULL) {
/* Grab the keyboard out of the greedy hands of the mux. */
DPRINTF(("wskbdopen: detach\n"));
wsmux_detach_sc(&sc->sc_base);
}
#endif
if (sc->sc_base.me_evp != NULL)
return (EBUSY);
evar = &sc->sc_base.me_evar;
wsevent_init(evar);
evar->io = p;
error = wskbd_do_open(sc, evar);
if (error) {
DPRINTF(("wskbdopen: %s open failed\n",
sc->sc_base.me_dv.dv_xname));
sc->sc_base.me_evp = NULL;
wsevent_fini(evar);
}
return (error);
}
int
wskbd_do_open(struct wskbd_softc *sc, struct wseventvar *evp)
{
sc->sc_base.me_evp = evp;
sc->sc_translating = 0;
return (wskbd_enable(sc, 1));
}
int
wskbdclose(dev_t dev, int flags, int mode, struct proc *p)
{
struct wskbd_softc *sc =
(struct wskbd_softc *)wskbd_cd.cd_devs[minor(dev)];
struct wseventvar *evar = sc->sc_base.me_evp;
if (evar == NULL)
/* not open for read */
return (0);
sc->sc_base.me_evp = NULL;
sc->sc_translating = 1;
(void)wskbd_enable(sc, 0);
wsevent_fini(evar);
return (0);
}
#if NWSMUX > 0
int
wskbd_mux_close(struct wsevsrc *me)
{
struct wskbd_softc *sc = (struct wskbd_softc *)me;
sc->sc_base.me_evp = NULL;
sc->sc_translating = 1;
(void)wskbd_enable(sc, 0);
return (0);
}
#endif
int
wskbdread(dev_t dev, struct uio *uio, int flags)
{
struct wskbd_softc *sc = wskbd_cd.cd_devs[minor(dev)];
int error;
if (sc->sc_dying)
return (EIO);
#ifdef DIAGNOSTIC
if (sc->sc_base.me_evp == NULL) {
printf("wskbdread: evp == NULL\n");
return (EINVAL);
}
#endif
sc->sc_refcnt++;
error = wsevent_read(sc->sc_base.me_evp, uio, flags);
if (--sc->sc_refcnt < 0) {
wakeup(sc);
error = EIO;
}
return (error);
}
int
wskbdioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
{
return (wskbd_do_ioctl(wskbd_cd.cd_devs[minor(dev)], cmd, data, flag,p));
}
/* A wrapper around the ioctl() workhorse to make reference counting easy. */
int
wskbd_do_ioctl(struct device *dv, u_long cmd, caddr_t data, int flag,
struct proc *p)
{
struct wskbd_softc *sc = (struct wskbd_softc *)dv;
int error;
sc->sc_refcnt++;
error = wskbd_do_ioctl_sc(sc, cmd, data, flag, p);
if (--sc->sc_refcnt < 0)
wakeup(sc);
return (error);
}
int
wskbd_do_ioctl_sc(struct wskbd_softc *sc, u_long cmd, caddr_t data, int flag,
struct proc *p)
{
/*
* Try the generic ioctls that the wskbd interface supports.
*/
switch (cmd) {
case FIONBIO: /* we will remove this someday (soon???) */
return (0);
case FIOASYNC:
if (sc->sc_base.me_evp == NULL)
return (EINVAL);
sc->sc_base.me_evp->async = *(int *)data != 0;
return (0);
case TIOCSPGRP:
if (sc->sc_base.me_evp == NULL)
return (EINVAL);
if (*(int *)data != sc->sc_base.me_evp->io->p_pgid)
return (EPERM);
return (0);
}
/*
* Try the keyboard driver for WSKBDIO ioctls. It returns EPASSTHROUGH
* if it didn't recognize the request.
*/
return (wskbd_displayioctl(&sc->sc_base.me_dv, cmd, data, flag, p));
}
/*
* WSKBDIO ioctls, handled in both emulation mode and in ``raw'' mode.
* Some of these have no real effect in raw mode, however.
*/
static int
wskbd_displayioctl(struct device *dev, u_long cmd, caddr_t data, int flag,
struct proc *p)
{
struct wskbd_softc *sc = (struct wskbd_softc *)dev;
struct wskbd_bell_data *ubdp, *kbdp;
struct wskbd_keyrepeat_data *ukdp, *kkdp;
struct wskbd_map_data *umdp;
struct wskbd_mapdata md;
kbd_t enc;
void *buf;
int len, error;
switch (cmd) {
#define SETBELL(dstp, srcp, dfltp) \
do { \
(dstp)->pitch = ((srcp)->which & WSKBD_BELL_DOPITCH) ? \
(srcp)->pitch : (dfltp)->pitch; \
(dstp)->period = ((srcp)->which & WSKBD_BELL_DOPERIOD) ? \
(srcp)->period : (dfltp)->period; \
(dstp)->volume = ((srcp)->which & WSKBD_BELL_DOVOLUME) ? \
(srcp)->volume : (dfltp)->volume; \
(dstp)->which = WSKBD_BELL_DOALL; \
} while (0)
case WSKBDIO_BELL:
if ((flag & FWRITE) == 0)
return (EACCES);
return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie,
WSKBDIO_COMPLEXBELL, (caddr_t)&sc->sc_bell_data, flag, p));
case WSKBDIO_COMPLEXBELL:
if ((flag & FWRITE) == 0)
return (EACCES);
ubdp = (struct wskbd_bell_data *)data;
SETBELL(ubdp, ubdp, &sc->sc_bell_data);
return ((*sc->sc_accessops->ioctl)(sc->sc_accesscookie,
WSKBDIO_COMPLEXBELL, (caddr_t)ubdp, flag, p));
case WSKBDIO_SETBELL:
if ((flag & FWRITE) == 0)
return (EACCES);
kbdp = &sc->sc_bell_data;
setbell:
ubdp = (struct wskbd_bell_data *)data;
SETBELL(kbdp, ubdp, kbdp);
return (0);
case WSKBDIO_GETBELL:
kbdp = &sc->sc_bell_data;
getbell:
ubdp = (struct wskbd_bell_data *)data;
SETBELL(ubdp, kbdp, kbdp);
return (0);
case WSKBDIO_SETDEFAULTBELL:
if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
return (error);
kbdp = &wskbd_default_bell_data;
goto setbell;
case WSKBDIO_GETDEFAULTBELL:
kbdp = &wskbd_default_bell_data;
goto getbell;
#undef SETBELL
#define SETKEYREPEAT(dstp, srcp, dfltp) \
do { \
(dstp)->del1 = ((srcp)->which & WSKBD_KEYREPEAT_DODEL1) ? \
(srcp)->del1 : (dfltp)->del1; \
(dstp)->delN = ((srcp)->which & WSKBD_KEYREPEAT_DODELN) ? \
(srcp)->delN : (dfltp)->delN; \
(dstp)->which = WSKBD_KEYREPEAT_DOALL; \
} while (0)
case WSKBDIO_SETKEYREPEAT:
if ((flag & FWRITE) == 0)
return (EACCES);
kkdp = &sc->sc_keyrepeat_data;
setkeyrepeat:
ukdp = (struct wskbd_keyrepeat_data *)data;
SETKEYREPEAT(kkdp, ukdp, kkdp);
return (0);
case WSKBDIO_GETKEYREPEAT:
kkdp = &sc->sc_keyrepeat_data;
getkeyrepeat:
ukdp = (struct wskbd_keyrepeat_data *)data;
SETKEYREPEAT(ukdp, kkdp, kkdp);
return (0);
case WSKBDIO_SETDEFAULTKEYREPEAT:
if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
return (error);
kkdp = &wskbd_default_keyrepeat_data;
goto setkeyrepeat;
case WSKBDIO_GETDEFAULTKEYREPEAT:
kkdp = &wskbd_default_keyrepeat_data;
goto getkeyrepeat;
#undef SETKEYREPEAT
case WSKBDIO_SETMAP:
if ((flag & FWRITE) == 0)
return (EACCES);
umdp = (struct wskbd_map_data *)data;
if (umdp->maplen > WSKBDIO_MAXMAPLEN)
return (EINVAL);
len = umdp->maplen*sizeof(struct wscons_keymap);
buf = malloc(len, M_TEMP, M_WAITOK);
error = copyin(umdp->map, buf, len);
if (error == 0) {
wskbd_init_keymap(umdp->maplen,
&sc->sc_map, &sc->sc_maplen);
memcpy(sc->sc_map, buf, len);
/* drop the variant bits handled by the map */
sc->sc_layout = KB_USER |
(KB_VARIANT(sc->sc_layout) & KB_HANDLEDBYWSKBD);
wskbd_update_layout(sc->id, sc->sc_layout);
}
free(buf, M_TEMP);
return(error);
case WSKBDIO_GETMAP:
umdp = (struct wskbd_map_data *)data;
if (umdp->maplen > sc->sc_maplen)
umdp->maplen = sc->sc_maplen;
error = copyout(sc->sc_map, umdp->map,
umdp->maplen*sizeof(struct wscons_keymap));
return(error);
case WSKBDIO_GETENCODING:
*((kbd_t *) data) = sc->sc_layout;
return(0);
case WSKBDIO_SETENCODING:
if ((flag & FWRITE) == 0)
return (EACCES);
enc = *((kbd_t *)data);
if (KB_ENCODING(enc) == KB_USER) {
/* user map must already be loaded */
if (KB_ENCODING(sc->sc_layout) != KB_USER)
return (EINVAL);
/* map variants make no sense */
if (KB_VARIANT(enc) & ~KB_HANDLEDBYWSKBD)
return (EINVAL);
} else {
md = *(sc->id->t_keymap); /* structure assignment */
md.layout = enc;
error = wskbd_load_keymap(&md, &sc->sc_map,
&sc->sc_maplen);
if (error)
return (error);
}
sc->sc_layout = enc;
wskbd_update_layout(sc->id, enc);
return (0);
}
/*
* Try the keyboard driver for WSKBDIO ioctls. It returns -1
* if it didn't recognize the request, and in turn we return
* -1 if we didn't recognize the request.
*/
/* printf("kbdaccess\n"); */
error = (*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, data,
flag, p);
#ifdef WSDISPLAY_COMPAT_RAWKBD
if (!error && cmd == WSKBDIO_SETMODE && *(int *)data == WSKBD_RAW) {
int s = spltty();
sc->id->t_modifiers &= ~(MOD_SHIFT_L | MOD_SHIFT_R
| MOD_CONTROL_L | MOD_CONTROL_R
| MOD_META_L | MOD_META_R
| MOD_COMMAND
| MOD_COMMAND1 | MOD_COMMAND2);
#if NWSDISPLAY > 0
if (sc->sc_repeating) {
sc->sc_repeating = 0;
callout_stop(&sc->sc_repeat_ch);
}
#endif
splx(s);
}
#endif
return (error);
}
int
wskbdpoll(dev_t dev, int events, struct proc *p)
{
struct wskbd_softc *sc = wskbd_cd.cd_devs[minor(dev)];
if (sc->sc_base.me_evp == NULL)
return (EINVAL);
return (wsevent_poll(sc->sc_base.me_evp, events, p));
}
int
wskbdkqfilter(dev_t dev, struct knote *kn)
{
struct wskbd_softc *sc = wskbd_cd.cd_devs[minor(dev)];
if (sc->sc_base.me_evp == NULL)
return (1);
return (wsevent_kqfilter(sc->sc_base.me_evp, kn));
}
#if NWSDISPLAY > 0
int
wskbd_pickfree(void)
{
int i;
struct wskbd_softc *sc;
for (i = 0; i < wskbd_cd.cd_ndevs; i++) {
if ((sc = wskbd_cd.cd_devs[i]) == NULL)
continue;
if (sc->sc_base.me_dispdv == NULL)
return (i);
}
return (-1);
}
struct wsevsrc *
wskbd_set_console_display(struct device *displaydv, struct wsevsrc *me)
{
struct wskbd_softc *sc = wskbd_console_device;
if (sc == NULL)
return (NULL);
sc->sc_base.me_dispdv = displaydv;
#if NWSMUX > 0
(void)wsmux_attach_sc((struct wsmux_softc *)me, &sc->sc_base);
#endif
return (&sc->sc_base);
}
int
wskbd_set_display(struct device *dv, struct wsevsrc *me)
{
struct wskbd_softc *sc = (struct wskbd_softc *)dv;
struct device *displaydv = me != NULL ? me->me_dispdv : NULL;
struct device *odisplaydv;
int error;
DPRINTF(("wskbd_set_display: %s me=%p odisp=%p disp=%p cons=%d\n",
dv->dv_xname, me, sc->sc_base.me_dispdv, displaydv,
sc->sc_isconsole));
if (sc->sc_isconsole)
return (EBUSY);
if (displaydv != NULL) {
if (sc->sc_base.me_dispdv != NULL)
return (EBUSY);
} else {
if (sc->sc_base.me_dispdv == NULL)
return (ENXIO);
}
odisplaydv = sc->sc_base.me_dispdv;
sc->sc_base.me_dispdv = NULL;
error = wskbd_enable(sc, displaydv != NULL);
sc->sc_base.me_dispdv = displaydv;
if (error) {
sc->sc_base.me_dispdv = odisplaydv;
return (error);
}
if (displaydv)
printf("%s: connecting to %s\n",
sc->sc_base.me_dv.dv_xname, displaydv->dv_xname);
else
printf("%s: disconnecting from %s\n",
sc->sc_base.me_dv.dv_xname, odisplaydv->dv_xname);
return (0);
}
#endif /* NWSDISPLAY > 0 */
#if NWSMUX > 0
int
wskbd_add_mux(int unit, struct wsmux_softc *muxsc)
{
struct wskbd_softc *sc;
if (unit < 0 || unit >= wskbd_cd.cd_ndevs ||
(sc = wskbd_cd.cd_devs[unit]) == NULL)
return (ENXIO);
if (sc->sc_base.me_parent != NULL || sc->sc_base.me_evp != NULL)
return (EBUSY);
return (wsmux_attach_sc(muxsc, &sc->sc_base));
}
#endif
/*
* Console interface.
*/
int
wskbd_cngetc(dev_t dev)
{
static int num = 0;
static int pos;
u_int type;
int data;
keysym_t ks;
if (!wskbd_console_initted)
return 0;
if (wskbd_console_device != NULL &&
!wskbd_console_device->sc_translating)
return 0;
for(;;) {
if (num-- > 0) {
ks = wskbd_console_data.t_symbols[pos++];
if (KS_GROUP(ks) == KS_GROUP_Ascii)
return (KS_VALUE(ks));
} else {
(*wskbd_console_data.t_consops->getc)
(wskbd_console_data.t_consaccesscookie,
&type, &data);
num = wskbd_translate(&wskbd_console_data, type, data);
pos = 0;
}
}
}
void
wskbd_cnpollc(dev_t dev, int poll)
{
if (!wskbd_console_initted)
return;
if (wskbd_console_device != NULL &&
!wskbd_console_device->sc_translating)
return;
(*wskbd_console_data.t_consops->pollc)
(wskbd_console_data.t_consaccesscookie, poll);
}
void
wskbd_cnbell(dev_t dev, u_int pitch, u_int period, u_int volume)
{
if (!wskbd_console_initted)
return;
if (wskbd_console_data.t_consops->bell != NULL)
(*wskbd_console_data.t_consops->bell)
(wskbd_console_data.t_consaccesscookie, pitch, period,
volume);
}
static inline void
update_leds(struct wskbd_internal *id)
{
int new_state;
new_state = 0;
if (id->t_modifiers & (MOD_SHIFTLOCK | MOD_CAPSLOCK))
new_state |= WSKBD_LED_CAPS;
if (id->t_modifiers & MOD_NUMLOCK)
new_state |= WSKBD_LED_NUM;
if (id->t_modifiers & MOD_COMPOSE)
new_state |= WSKBD_LED_COMPOSE;
if (id->t_modifiers & MOD_HOLDSCREEN)
new_state |= WSKBD_LED_SCROLL;
if (id->t_sc && new_state != id->t_sc->sc_ledstate) {
(*id->t_sc->sc_accessops->set_leds)
(id->t_sc->sc_accesscookie, new_state);
id->t_sc->sc_ledstate = new_state;
}
}
static inline void
update_modifier(struct wskbd_internal *id, u_int type, int toggle, int mask)
{
if (toggle) {
if (type == WSCONS_EVENT_KEY_DOWN)
id->t_modifiers ^= mask;
} else {
if (type == WSCONS_EVENT_KEY_DOWN)
id->t_modifiers |= mask;
else
id->t_modifiers &= ~mask;
}
}
#if NWSDISPLAY > 0
static void
change_displayparam(struct wskbd_softc *sc, int param, int updown,
int wraparound)
{
int res;
struct wsdisplay_param dp;
if (sc->sc_base.me_dispdv == NULL)
return;
dp.param = param;
res = wsdisplay_param(sc->sc_base.me_dispdv, WSDISPLAYIO_GETPARAM, &dp);
if (res == EINVAL)
return; /* no such parameter */
dp.curval += updown;
if (dp.max < dp.curval)
dp.curval = wraparound ? dp.min : dp.max;
else
if (dp.curval < dp.min)
dp.curval = wraparound ? dp.max : dp.min;
wsdisplay_param(sc->sc_base.me_dispdv, WSDISPLAYIO_SETPARAM, &dp);
}
#endif
static int
internal_command(struct wskbd_softc *sc, u_int *type, keysym_t ksym,
keysym_t ksym2)
{
switch (ksym) {
case KS_Cmd:
update_modifier(sc->id, *type, 0, MOD_COMMAND);
ksym = ksym2;
break;
case KS_Cmd1:
update_modifier(sc->id, *type, 0, MOD_COMMAND1);
break;
case KS_Cmd2:
update_modifier(sc->id, *type, 0, MOD_COMMAND2);
break;
}
if (*type != WSCONS_EVENT_KEY_DOWN ||
(! MOD_ONESET(sc->id, MOD_COMMAND) &&
! MOD_ALLSET(sc->id, MOD_COMMAND1 | MOD_COMMAND2)))
return (0);
switch (ksym) {
#if defined(DDB) || defined(KGDB)
case KS_Cmd_Debugger:
if (sc->sc_isconsole) {
#ifdef DDB
console_debugger();
#endif
#ifdef KGDB
kgdb_connect(1);
#endif
}
/* discard this key (ddb discarded command modifiers) */
*type = WSCONS_EVENT_KEY_UP;
return (1);
#endif
#if NWSDISPLAY > 0
case KS_Cmd_Screen0:
case KS_Cmd_Screen1:
case KS_Cmd_Screen2:
case KS_Cmd_Screen3:
case KS_Cmd_Screen4:
case KS_Cmd_Screen5:
case KS_Cmd_Screen6:
case KS_Cmd_Screen7:
case KS_Cmd_Screen8:
case KS_Cmd_Screen9:
wsdisplay_switch(sc->sc_base.me_dispdv, ksym - KS_Cmd_Screen0, 0);
return (1);
case KS_Cmd_ResetEmul:
wsdisplay_reset(sc->sc_base.me_dispdv, WSDISPLAY_RESETEMUL);
return (1);
case KS_Cmd_ResetClose:
wsdisplay_reset(sc->sc_base.me_dispdv, WSDISPLAY_RESETCLOSE);
return (1);
case KS_Cmd_BacklightOn:
case KS_Cmd_BacklightOff:
case KS_Cmd_BacklightToggle:
change_displayparam(sc, WSDISPLAYIO_PARAM_BACKLIGHT,
ksym == KS_Cmd_BacklightOff ? -1 : 1,
ksym == KS_Cmd_BacklightToggle ? 1 : 0);
return (1);
case KS_Cmd_BrightnessUp:
case KS_Cmd_BrightnessDown:
case KS_Cmd_BrightnessRotate:
change_displayparam(sc, WSDISPLAYIO_PARAM_BRIGHTNESS,
ksym == KS_Cmd_BrightnessDown ? -1 : 1,
ksym == KS_Cmd_BrightnessRotate ? 1 : 0);
return (1);
case KS_Cmd_ContrastUp:
case KS_Cmd_ContrastDown:
case KS_Cmd_ContrastRotate:
change_displayparam(sc, WSDISPLAYIO_PARAM_CONTRAST,
ksym == KS_Cmd_ContrastDown ? -1 : 1,
ksym == KS_Cmd_ContrastRotate ? 1 : 0);
return (1);
#endif
}
return (0);
}
static int
wskbd_translate(struct wskbd_internal *id, u_int type, int value)
{
struct wskbd_softc *sc = id->t_sc;
keysym_t ksym, res, *group;
struct wscons_keymap kpbuf, *kp;
int iscommand = 0;
if (type == WSCONS_EVENT_ALL_KEYS_UP) {
id->t_modifiers &= ~(MOD_SHIFT_L | MOD_SHIFT_R
| MOD_CONTROL_L | MOD_CONTROL_R
| MOD_META_L | MOD_META_R
| MOD_MODESHIFT
| MOD_COMMAND | MOD_COMMAND1 | MOD_COMMAND2);
update_leds(id);
return (0);
}
if (sc != NULL) {
if (value < 0 || value >= sc->sc_maplen) {
#ifdef DEBUG
printf("wskbd_translate: keycode %d out of range\n",
value);
#endif
return (0);
}
kp = sc->sc_map + value;
} else {
kp = &kpbuf;
wskbd_get_mapentry(id->t_keymap, value, kp);
}
/* if this key has a command, process it first */
if (sc != NULL && kp->command != KS_voidSymbol)
iscommand = internal_command(sc, &type, kp->command,
kp->group1[0]);
/* Now update modifiers */
switch (kp->group1[0]) {
case KS_Shift_L:
update_modifier(id, type, 0, MOD_SHIFT_L);
break;
case KS_Shift_R:
update_modifier(id, type, 0, MOD_SHIFT_R);
break;
case KS_Shift_Lock:
update_modifier(id, type, 1, MOD_SHIFTLOCK);
break;
case KS_Caps_Lock:
update_modifier(id, type, 1, MOD_CAPSLOCK);
break;
case KS_Control_L:
update_modifier(id, type, 0, MOD_CONTROL_L);
break;
case KS_Control_R:
update_modifier(id, type, 0, MOD_CONTROL_R);
break;
case KS_Alt_L:
update_modifier(id, type, 0, MOD_META_L);
break;
case KS_Alt_R:
update_modifier(id, type, 0, MOD_META_R);
break;
case KS_Mode_switch:
update_modifier(id, type, 0, MOD_MODESHIFT);
break;
case KS_Num_Lock:
update_modifier(id, type, 1, MOD_NUMLOCK);
break;
#if NWSDISPLAY > 0
case KS_Hold_Screen:
if (sc != NULL) {
update_modifier(id, type, 1, MOD_HOLDSCREEN);
wskbd_holdscreen(sc, id->t_modifiers & MOD_HOLDSCREEN);
}
break;
#endif
}
/* If this is a key release or we are in command mode, we are done */
if (type != WSCONS_EVENT_KEY_DOWN || iscommand) {
update_leds(id);
return (0);
}
/* Get the keysym */
if (id->t_modifiers & MOD_MODESHIFT)
group = & kp->group2[0];
else
group = & kp->group1[0];
if ((id->t_modifiers & MOD_NUMLOCK) != 0 &&
KS_GROUP(group[1]) == KS_GROUP_Keypad) {
if (MOD_ONESET(id, MOD_ANYSHIFT))
ksym = group[0];
else
ksym = group[1];
} else if (! MOD_ONESET(id, MOD_ANYSHIFT | MOD_CAPSLOCK)) {
ksym = group[0];
} else if (MOD_ONESET(id, MOD_CAPSLOCK)) {
if (! MOD_ONESET(id, MOD_SHIFT_L | MOD_SHIFT_R))
ksym = group[0];
else
ksym = group[1];
if (ksym >= KS_a && ksym <= KS_z)
ksym += KS_A - KS_a;
else if (ksym >= KS_agrave && ksym <= KS_thorn &&
ksym != KS_division)
ksym += KS_Agrave - KS_agrave;
} else if (MOD_ONESET(id, MOD_ANYSHIFT)) {
ksym = group[1];
} else {
ksym = group[0];
}
/* Process compose sequence and dead accents */
res = KS_voidSymbol;
switch (KS_GROUP(ksym)) {
case KS_GROUP_Ascii:
case KS_GROUP_Keypad:
case KS_GROUP_Function:
res = ksym;
break;
case KS_GROUP_Mod:
if (ksym == KS_Multi_key) {
update_modifier(id, 1, 0, MOD_COMPOSE);
id->t_composelen = 2;
}
break;
case KS_GROUP_Dead:
if (id->t_composelen == 0) {
update_modifier(id, 1, 0, MOD_COMPOSE);
id->t_composelen = 1;
id->t_composebuf[0] = ksym;
} else
res = ksym;
break;
}
if (res == KS_voidSymbol) {
update_leds(id);
return (0);
}
if (id->t_composelen > 0) {
id->t_composebuf[2 - id->t_composelen] = res;
if (--id->t_composelen == 0) {
res = wskbd_compose_value(id->t_composebuf);
update_modifier(id, 0, 0, MOD_COMPOSE);
} else {
return (0);
}
}
update_leds(id);
/* We are done, return the symbol */
if (KS_GROUP(res) == KS_GROUP_Ascii) {
if (MOD_ONESET(id, MOD_ANYCONTROL)) {
if ((res >= KS_at && res <= KS_z) || res == KS_space)
res = res & 0x1f;
else if (res == KS_2)
res = 0x00;
else if (res >= KS_3 && res <= KS_7)
res = KS_Escape + (res - KS_3);
else if (res == KS_8)
res = KS_Delete;
}
if (MOD_ONESET(id, MOD_ANYMETA)) {
if (id->t_flags & WSKFL_METAESC) {
id->t_symbols[0] = KS_Escape;
id->t_symbols[1] = res;
return (2);
} else
res |= 0x80;
}
}
id->t_symbols[0] = res;
return (1);
}
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