NetBSD/sys/arch/alpha/wscons/kbd.c

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/* $NetBSD: kbd.c,v 1.7 1997/09/02 13:20:55 thorpej Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)kbd.c 8.2 (Berkeley) 10/30/93
*/
/*
* Keyboard driver (/dev/kbd -- note that we do not have minor numbers
* [yet?]). Translates incoming bytes to ASCII or to `firm_events' and
* passes them up to the appropriate reader.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: kbd.c,v 1.7 1997/09/02 13:20:55 thorpej Exp $");
#include <sys/param.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/tty.h>
#include <sys/signalvar.h>
#include <machine/autoconf.h>
#include <machine/conf.h>
#include <machine/vuid_event.h>
#include <machine/kbio.h> /* XXX FOR KIOCSDIRECT */
#include <machine/wsconsio.h> /* XXX for bell ioctls */
#include <alpha/wscons/event_var.h>
#include <alpha/wscons/wsconsvar.h>
static void kbd_repeat __P((void *));
cdev_decl(kbd);
struct kbd_softc {
struct device *k_idev; /* the input device */
struct wscons_idev_spec k_ispec; /* the input device information */
int k_evmode; /* set if we should produce events */
struct evvar k_events; /* event queue state */
char *k_repeatcp; /* repeated character (string) */
int k_repeating; /* we've called timeout() */
int k_repeat_start; /* how long (ms) until repeat */
int k_repeat_step; /* how long (ms) until more repeats */
struct wsconsio_bell_data k_belldata;
} kbd_softc;
void
kbdattach(idev, ispec)
struct device *idev;
struct wscons_idev_spec *ispec;
{
register struct kbd_softc *k = &kbd_softc;
/*
* It would be nice if the repeat rates were in ticks.
* However, if they were, we couldn't set them here, as
* hz might not be set up yet!
*/
k->k_repeat_start = 200;
k->k_repeat_step = 50;
k->k_belldata.wbd_pitch = 1500; /* 1500 Hz */
k->k_belldata.wbd_period = 100; /* 100 ms */
k->k_belldata.wbd_volume = 50; /* 50% volume */
k->k_idev = idev;
k->k_ispec = *ispec;
}
static void
kbd_repeat(void *arg)
{
struct kbd_softc *k = (struct kbd_softc *)arg;
int s = spltty();
if (k->k_repeating && k->k_repeatcp != NULL) {
wscons_input(k->k_repeatcp);
timeout(kbd_repeat, k, (hz * k->k_repeat_step) / 1000);
}
splx(s);
}
void
kbd_input(register int c)
{
register struct kbd_softc *k = &kbd_softc;
register struct firm_event *fe;
register int put;
char *cp;
if (k->k_repeating) {
k->k_repeating = 0;
untimeout(kbd_repeat, k);
}
/*
* If /dev/kbd is not connected in event mode translate and
* send upstream.
*/
if (!k->k_evmode) {
cp = (*k->k_ispec.wi_translate)(k->k_idev, c);
if (cp != NULL) {
wscons_input(cp);
k->k_repeating = 1;
k->k_repeatcp = cp;
timeout(kbd_repeat, k, (hz * k->k_repeat_start) / 1000);
}
return;
}
/*
* Keyboard is generating events. Turn this keystroke into an
* event and put it in the queue. If the queue is full, the
* keystroke is lost (sorry!).
*/
put = k->k_events.ev_put;
fe = &k->k_events.ev_q[put];
put = (put + 1) % EV_QSIZE;
if (put == k->k_events.ev_get) {
log(LOG_WARNING, "keyboard event queue overflow\n"); /* ??? */
return;
}
fe->id = c & k->k_ispec.wi_keymask;
fe->value = (c & k->k_ispec.wi_keyupmask) != 0 ? VKEY_UP : VKEY_DOWN;
microtime(&fe->time);
k->k_events.ev_put = put;
EV_WAKEUP(&k->k_events);
}
int
kbdopen(dev_t dev, int flags, int mode, struct proc *p)
{
if (kbd_softc.k_events.ev_io)
return (EBUSY);
kbd_softc.k_events.ev_io = p;
ev_init(&kbd_softc.k_events);
kbd_softc.k_evmode = 1;
return (0);
}
int
kbdclose(dev_t dev, int flags, int mode, struct proc *p)
{
/*
* Turn off event mode, dump the queue, and close the keyboard
* unless it is supplying console input.
*/
kbd_softc.k_evmode = 0;
ev_fini(&kbd_softc.k_events);
kbd_softc.k_events.ev_io = NULL;
return (0);
}
int
kbdread(dev_t dev, struct uio *uio, int flags)
{
return (ev_read(&kbd_softc.k_events, uio, flags));
}
/* this routine should not exist, but is convenient to write here for now */
int
kbdwrite(dev_t dev, struct uio *uio, int flags)
{
return (EOPNOTSUPP);
}
int
kbdioctl(dev_t dev, u_long cmd, register caddr_t data, int flag, struct proc *p)
{
struct kbd_softc *k = &kbd_softc;
struct wsconsio_bell_data *wbd;
int rv;
rv = ENOTTY;
switch (cmd) {
#if 0
case KIOCSDIRECT:
k->k_evmode = *(int *)data;
return (0);
#endif
case FIONBIO: /* we will remove this someday (soon???) */
return (0);
case FIOASYNC:
k->k_events.ev_async = *(int *)data != 0;
return (0);
case TIOCSPGRP:
if (*(int *)data != k->k_events.ev_io->p_pgid)
return (EPERM);
return (0);
case WSCONSIO_BELL:
if (k->k_ispec.wi_bell != NULL)
(*k->k_ispec.wi_bell)(k->k_idev, &k->k_belldata);
return (0);
case WSCONSIO_COMPLEXBELL:
if (k->k_ispec.wi_bell != NULL) {
wbd = (struct wsconsio_bell_data *)data;
if ((wbd->wbd_flags & WSCONSIO_BELLDATA_PITCH) == 0)
wbd->wbd_pitch = k->k_belldata.wbd_pitch;
if ((wbd->wbd_flags & WSCONSIO_BELLDATA_PERIOD) == 0)
wbd->wbd_period = k->k_belldata.wbd_period;
if ((wbd->wbd_flags & WSCONSIO_BELLDATA_VOLUME) == 0)
wbd->wbd_volume = k->k_belldata.wbd_volume;
(*k->k_ispec.wi_bell)(k->k_idev, wbd);
}
return (0);
case WSCONSIO_SETBELL:
wbd = (struct wsconsio_bell_data *)data;
if ((wbd->wbd_flags & WSCONSIO_BELLDATA_PITCH) != 0)
k->k_belldata.wbd_pitch = wbd->wbd_pitch;
if ((wbd->wbd_flags & WSCONSIO_BELLDATA_PERIOD) != 0)
k->k_belldata.wbd_period = wbd->wbd_period;
if ((wbd->wbd_flags & WSCONSIO_BELLDATA_VOLUME) != 0)
k->k_belldata.wbd_volume = wbd->wbd_volume;
return (0);
case WSCONSIO_GETBELL:
wbd = (struct wsconsio_bell_data *)data;
wbd->wbd_flags = WSCONSIO_BELLDATA_PITCH |
WSCONSIO_BELLDATA_PERIOD | WSCONSIO_BELLDATA_VOLUME;
wbd->wbd_pitch = k->k_belldata.wbd_pitch;
wbd->wbd_period = k->k_belldata.wbd_period;
wbd->wbd_volume = k->k_belldata.wbd_volume ;
return (0);
#if 0 /* XXX */
/* XXX KEY-REPEAT RATE SETTING */
#endif /* XXX */
default:
if (k->k_ispec.wi_ioctl != NULL)
rv = (*k->k_ispec.wi_ioctl)(k->k_idev, cmd, data,
flag, p);
}
return (rv);
}
int
kbdpoll(dev_t dev, int events, struct proc *p)
{
return (ev_poll(&kbd_softc.k_events, events, p));
}
/* Ring the console bell. (For wscons terminal emulator and other code) */
void
wscons_kbd_bell()
{
struct kbd_softc *k = &kbd_softc;
if (k->k_ispec.wi_bell != NULL)
(*k->k_ispec.wi_bell)(k->k_idev, &k->k_belldata);
}
/*
* Console handling functions.
*/
int
kbd_cngetc(dev)
dev_t dev;
{
struct kbd_softc *k = &kbd_softc;
if (kbd_softc.k_evmode) /* XXX? */
return 0;
if (k->k_ispec.wi_getc != NULL)
return (*k->k_ispec.wi_getc)(k->k_idev);
else
return 0;
}
void
kbd_cnpollc(dev, on)
dev_t dev;
int on;
{
struct kbd_softc *k = &kbd_softc;
if (kbd_softc.k_evmode) /* XXX? */
return;
if (k->k_ispec.wi_pollc != NULL)
(*k->k_ispec.wi_pollc)(k->k_idev, on);
}