NetBSD/sys/arch/mac68k/dev/ite_compat.c

204 lines
4.4 KiB
C

/* $NetBSD: ite_compat.c,v 1.4 2001/05/14 09:27:06 scw Exp $ */
/*
* Copyright (C) 2000 Scott Reynolds
* All rights reserved.
*
* 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. 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.
*/
/*
* The main thing to realize about this emulator is that the old console
* emulator was largely compatible with the DEC VT-220. Since the
* wsdiplay driver has a more complete emulation of that terminal, it's
* reasonable to pass virtually everything up to that driver without
* modification.
*/
#include "ite.h"
#include "wsdisplay.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/ttycom.h>
#include <dev/cons.h>
#include <machine/cpu.h>
#include <machine/iteioctl.h>
cdev_decl(ite);
cdev_decl(wsdisplay);
void iteattach __P((int));
static int ite_initted = 0;
static int ite_bell_freq = 1880;
static int ite_bell_length = 10;
static int ite_bell_volume = 100;
/*ARGSUSED*/
void
iteattach(n)
int n;
{
#if NWSDISPLAY > 0
int maj;
for (maj = 0; maj < nchrdev; maj++)
if (cdevsw[maj].d_open == wsdisplayopen)
break;
KASSERT(maj < nchrdev);
if (maj != major(cn_tab->cn_dev))
return;
ite_initted = 1;
#endif
}
/*
* Tty handling functions
*/
/*ARGSUSED*/
int
iteopen(dev, mode, devtype, p)
dev_t dev;
int mode;
int devtype;
struct proc *p;
{
return ite_initted ? (0) : (ENXIO);
}
/*ARGSUSED*/
int
iteclose(dev, flag, mode, p)
dev_t dev;
int flag;
int mode;
struct proc *p;
{
return ite_initted ? (0) : (ENXIO);
}
/*ARGSUSED*/
int
iteread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
return ite_initted ?
wsdisplayread(cn_tab->cn_dev, uio, flag) : (ENXIO);
}
/*ARGSUSED*/
int
itewrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
return ite_initted ?
wsdisplaywrite(cn_tab->cn_dev, uio, flag) : (ENXIO);
}
/*ARGSUSED*/
struct tty *
itetty(dev)
dev_t dev;
{
return ite_initted ? wsdisplaytty(cn_tab->cn_dev) : (NULL);
}
/*ARGSUSED*/
void
itestop(struct tty *tp, int flag)
{
}
/*ARGSUSED*/
int
iteioctl(dev, cmd, addr, flag, p)
dev_t dev;
u_long cmd;
caddr_t addr;
int flag;
struct proc *p;
{
if (!ite_initted)
return (ENXIO);
switch (cmd) {
case ITEIOC_RINGBELL:
return mac68k_ring_bell(ite_bell_freq,
ite_bell_length, ite_bell_volume);
case ITEIOC_SETBELL:
{
struct bellparams *bp = (void *)addr;
/* Do some sanity checks. */
if (bp->freq < 10 || bp->freq > 40000)
return (EINVAL);
if (bp->len < 0 || bp->len > 3600)
return (EINVAL);
if (bp->vol < 0 || bp->vol > 100)
return (EINVAL);
ite_bell_freq = bp->freq;
ite_bell_length = bp->len;
ite_bell_volume = bp->vol;
return (0);
}
case ITEIOC_GETBELL:
{
struct bellparams *bp = (void *)addr;
ite_bell_freq = bp->freq;
ite_bell_length = bp->len;
ite_bell_volume = bp->vol;
return (0);
}
default:
return wsdisplayioctl(cn_tab->cn_dev, cmd, addr, flag, p);
}
return (ENOTTY);
}
/*ARGSUSED*/
int
itepoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
return ite_initted ?
wsdisplaypoll(cn_tab->cn_dev, events, p) : (ENXIO);
}