193 lines
4.2 KiB
C
193 lines
4.2 KiB
C
/* $NetBSD: ite_compat.c,v 1.3 2001/01/22 07:31:44 scottr Exp $ */
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/*
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* Copyright (C) 2000 Scott Reynolds
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* The main thing to realize about this emulator is that the old console
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* emulator was largely compatible with the DEC VT-220. Since the
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* wsdiplay driver has a more complete emulation of that terminal, it's
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* reasonable to pass virtually everything up to that driver without
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* modification.
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*/
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#include "ite.h"
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#include "wsdisplay.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/ttycom.h>
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#include <dev/cons.h>
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#include <machine/cpu.h>
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#include <machine/iteioctl.h>
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cdev_decl(ite);
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cdev_decl(wsdisplay);
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void iteattach __P((int));
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static int ite_initted = 0;
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static int ite_bell_freq = 1880;
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static int ite_bell_length = 10;
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static int ite_bell_volume = 100;
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/*ARGSUSED*/
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void
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iteattach(n)
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int n;
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{
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#if NWSDISPLAY > 0
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int maj;
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for (maj = 0; maj < nchrdev; maj++)
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if (cdevsw[maj].d_open == wsdisplayopen)
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break;
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KASSERT(maj < nchrdev);
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if (maj != major(cn_tab->cn_dev))
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return;
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ite_initted = 1;
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#endif
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}
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/*
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* Tty handling functions
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*/
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/*ARGSUSED*/
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int
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iteopen(dev, mode, devtype, p)
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dev_t dev;
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int mode;
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int devtype;
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struct proc *p;
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{
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return ite_initted ? (0) : (ENXIO);
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}
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/*ARGSUSED*/
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int
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iteclose(dev, flag, mode, p)
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dev_t dev;
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int flag;
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int mode;
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struct proc *p;
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{
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return ite_initted ? (0) : (ENXIO);
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}
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/*ARGSUSED*/
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int
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iteread(dev, uio, flag)
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dev_t dev;
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struct uio *uio;
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int flag;
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{
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return ite_initted ?
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wsdisplayread(cn_tab->cn_dev, uio, flag) : (ENXIO);
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}
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/*ARGSUSED*/
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int
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itewrite(dev, uio, flag)
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dev_t dev;
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struct uio *uio;
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int flag;
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{
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return ite_initted ?
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wsdisplaywrite(cn_tab->cn_dev, uio, flag) : (ENXIO);
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}
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/*ARGSUSED*/
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struct tty *
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itetty(dev)
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dev_t dev;
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{
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return ite_initted ? wsdisplaytty(cn_tab->cn_dev) : (NULL);
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}
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/*ARGSUSED*/
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void
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itestop(struct tty *tp, int flag)
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{
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}
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/*ARGSUSED*/
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int
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iteioctl(dev, cmd, addr, flag, p)
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dev_t dev;
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u_long cmd;
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caddr_t addr;
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int flag;
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struct proc *p;
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{
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if (!ite_initted)
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return (ENXIO);
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switch (cmd) {
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case ITEIOC_RINGBELL:
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return mac68k_ring_bell(ite_bell_freq,
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ite_bell_length, ite_bell_volume);
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case ITEIOC_SETBELL:
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{
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struct bellparams *bp = (void *)addr;
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/* Do some sanity checks. */
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if (bp->freq < 10 || bp->freq > 40000)
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return (EINVAL);
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if (bp->len < 0 || bp->len > 3600)
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return (EINVAL);
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if (bp->vol < 0 || bp->vol > 100)
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return (EINVAL);
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ite_bell_freq = bp->freq;
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ite_bell_length = bp->len;
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ite_bell_volume = bp->vol;
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return (0);
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}
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case ITEIOC_GETBELL:
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{
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struct bellparams *bp = (void *)addr;
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ite_bell_freq = bp->freq;
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ite_bell_length = bp->len;
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ite_bell_volume = bp->vol;
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return (0);
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}
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default:
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return wsdisplayioctl(cn_tab->cn_dev, cmd, addr, flag, p);
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}
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return (ENOTTY);
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}
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