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ite_compat.c revision 1.2.4.1
      1  1.2.4.1      he /*	$NetBSD: ite_compat.c,v 1.2.4.1 2001/02/03 17:54:06 he Exp $	*/
      2      1.2  scottr 
      3      1.2  scottr /*
      4      1.2  scottr  * Copyright (C) 2000 Scott Reynolds
      5      1.2  scottr  * All rights reserved.
      6      1.2  scottr  *
      7      1.2  scottr  * Redistribution and use in source and binary forms, with or without
      8      1.2  scottr  * modification, are permitted provided that the following conditions
      9      1.2  scottr  * are met:
     10      1.2  scottr  * 1. Redistributions of source code must retain the above copyright
     11      1.2  scottr  *    notice, this list of conditions and the following disclaimer.
     12      1.2  scottr  * 2. Redistributions in binary form must reproduce the above copyright
     13      1.2  scottr  *    notice, this list of conditions and the following disclaimer in the
     14      1.2  scottr  *    documentation and/or other materials provided with the distribution.
     15      1.2  scottr  * 3. The name of the author may not be used to endorse or promote products
     16      1.2  scottr  *    derived from this software without specific prior written permission.
     17      1.2  scottr  *
     18      1.2  scottr  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19      1.2  scottr  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20      1.2  scottr  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21      1.2  scottr  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22      1.2  scottr  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23      1.2  scottr  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24      1.2  scottr  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25      1.2  scottr  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26      1.2  scottr  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27      1.2  scottr  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28      1.2  scottr  */
     29      1.2  scottr 
     30      1.2  scottr /*
     31      1.2  scottr  * The main thing to realize about this emulator is that the old console
     32      1.2  scottr  * emulator was largely compatible with the DEC VT-220.  Since the
     33      1.2  scottr  * wsdiplay driver has a more complete emulation of that terminal, it's
     34      1.2  scottr  * reasonable to pass virtually everything up to that driver without
     35      1.2  scottr  * modification.
     36      1.2  scottr  */
     37      1.2  scottr 
     38      1.2  scottr #include "ite.h"
     39      1.2  scottr #include "wsdisplay.h"
     40      1.2  scottr 
     41      1.2  scottr #include <sys/param.h>
     42      1.2  scottr #include <sys/systm.h>
     43      1.2  scottr #include <sys/conf.h>
     44      1.2  scottr #include <sys/device.h>
     45      1.2  scottr #include <sys/ioctl.h>
     46  1.2.4.1      he #include <sys/ttycom.h>
     47      1.2  scottr 
     48      1.2  scottr #include <dev/cons.h>
     49      1.2  scottr 
     50      1.2  scottr #include <machine/cpu.h>
     51      1.2  scottr #include <machine/iteioctl.h>
     52      1.2  scottr 
     53      1.2  scottr cdev_decl(ite);
     54      1.2  scottr cdev_decl(wsdisplay);
     55      1.2  scottr void		iteattach __P((int));
     56      1.2  scottr 
     57      1.2  scottr static int	ite_initted = 0;
     58      1.2  scottr static int	ite_bell_freq = 1880;
     59      1.2  scottr static int	ite_bell_length = 10;
     60      1.2  scottr static int	ite_bell_volume = 100;
     61      1.2  scottr 
     62      1.2  scottr 
     63      1.2  scottr /*ARGSUSED*/
     64      1.2  scottr void
     65      1.2  scottr iteattach(n)
     66      1.2  scottr 	int n;
     67      1.2  scottr {
     68      1.2  scottr #if NWSDISPLAY > 0
     69      1.2  scottr 	int maj;
     70      1.2  scottr 
     71      1.2  scottr 	for (maj = 0; maj < nchrdev; maj++)
     72      1.2  scottr 		if (cdevsw[maj].d_open == wsdisplayopen)
     73      1.2  scottr 			break;
     74      1.2  scottr 	KASSERT(maj < nchrdev);
     75      1.2  scottr 
     76      1.2  scottr 	if (maj != major(cn_tab->cn_dev))
     77      1.2  scottr 		return;
     78      1.2  scottr 
     79      1.2  scottr 	ite_initted = 1;
     80      1.2  scottr #endif
     81      1.2  scottr }
     82      1.2  scottr 
     83      1.2  scottr /*
     84      1.2  scottr  * Tty handling functions
     85      1.2  scottr  */
     86      1.2  scottr 
     87      1.2  scottr /*ARGSUSED*/
     88      1.2  scottr int
     89      1.2  scottr iteopen(dev, mode, devtype, p)
     90      1.2  scottr 	dev_t dev;
     91      1.2  scottr 	int mode;
     92      1.2  scottr 	int devtype;
     93      1.2  scottr 	struct proc *p;
     94      1.2  scottr {
     95  1.2.4.1      he 	return ite_initted ? (0) : (ENXIO);
     96      1.2  scottr }
     97      1.2  scottr 
     98      1.2  scottr /*ARGSUSED*/
     99      1.2  scottr int
    100      1.2  scottr iteclose(dev, flag, mode, p)
    101      1.2  scottr 	dev_t dev;
    102      1.2  scottr 	int flag;
    103      1.2  scottr 	int mode;
    104      1.2  scottr 	struct proc *p;
    105      1.2  scottr {
    106  1.2.4.1      he 	return ite_initted ? (0) : (ENXIO);
    107      1.2  scottr }
    108      1.2  scottr 
    109      1.2  scottr /*ARGSUSED*/
    110      1.2  scottr int
    111      1.2  scottr iteread(dev, uio, flag)
    112      1.2  scottr 	dev_t dev;
    113      1.2  scottr 	struct uio *uio;
    114      1.2  scottr 	int flag;
    115      1.2  scottr {
    116      1.2  scottr 	return ite_initted ?
    117      1.2  scottr 	    wsdisplayread(cn_tab->cn_dev, uio, flag) : (ENXIO);
    118      1.2  scottr }
    119      1.2  scottr 
    120      1.2  scottr /*ARGSUSED*/
    121      1.2  scottr int
    122      1.2  scottr itewrite(dev, uio, flag)
    123      1.2  scottr 	dev_t dev;
    124      1.2  scottr 	struct uio *uio;
    125      1.2  scottr 	int flag;
    126      1.2  scottr {
    127      1.2  scottr 	return ite_initted ?
    128      1.2  scottr 	    wsdisplaywrite(cn_tab->cn_dev, uio, flag) : (ENXIO);
    129      1.2  scottr }
    130      1.2  scottr 
    131      1.2  scottr /*ARGSUSED*/
    132      1.2  scottr struct tty *
    133      1.2  scottr itetty(dev)
    134      1.2  scottr 	dev_t dev;
    135      1.2  scottr {
    136      1.2  scottr 	return ite_initted ? wsdisplaytty(cn_tab->cn_dev) : (NULL);
    137      1.2  scottr }
    138      1.2  scottr 
    139      1.2  scottr /*ARGSUSED*/
    140      1.2  scottr void
    141      1.2  scottr itestop(struct tty *tp, int flag)
    142      1.2  scottr {
    143      1.2  scottr }
    144      1.2  scottr 
    145      1.2  scottr /*ARGSUSED*/
    146      1.2  scottr int
    147      1.2  scottr iteioctl(dev, cmd, addr, flag, p)
    148      1.2  scottr 	dev_t dev;
    149      1.2  scottr 	u_long cmd;
    150      1.2  scottr 	caddr_t addr;
    151      1.2  scottr 	int flag;
    152      1.2  scottr 	struct proc *p;
    153      1.2  scottr {
    154      1.2  scottr 	if (!ite_initted)
    155      1.2  scottr 		return (ENXIO);
    156      1.2  scottr 
    157      1.2  scottr 	switch (cmd) {
    158      1.2  scottr 	case ITEIOC_RINGBELL:
    159      1.2  scottr 		return mac68k_ring_bell(ite_bell_freq,
    160      1.2  scottr 		    ite_bell_length, ite_bell_volume);
    161      1.2  scottr 	case ITEIOC_SETBELL:
    162      1.2  scottr 		{
    163      1.2  scottr 			struct bellparams *bp = (void *)addr;
    164      1.2  scottr 
    165      1.2  scottr 			/* Do some sanity checks. */
    166      1.2  scottr 			if (bp->freq < 10 || bp->freq > 40000)
    167      1.2  scottr 				return (EINVAL);
    168      1.2  scottr 			if (bp->len < 0 || bp->len > 3600)
    169      1.2  scottr 				return (EINVAL);
    170      1.2  scottr 			if (bp->vol < 0 || bp->vol > 100)
    171      1.2  scottr 				return (EINVAL);
    172      1.2  scottr 
    173      1.2  scottr 			ite_bell_freq = bp->freq;
    174      1.2  scottr 			ite_bell_length = bp->len;
    175      1.2  scottr 			ite_bell_volume = bp->vol;
    176      1.2  scottr 			return (0);
    177      1.2  scottr 		}
    178      1.2  scottr 	case ITEIOC_GETBELL:
    179      1.2  scottr 		{
    180      1.2  scottr 			struct bellparams *bp = (void *)addr;
    181      1.2  scottr 
    182      1.2  scottr 			ite_bell_freq = bp->freq;
    183      1.2  scottr 			ite_bell_length = bp->len;
    184      1.2  scottr 			ite_bell_volume = bp->vol;
    185      1.2  scottr 			return (0);
    186      1.2  scottr 		}
    187      1.2  scottr 	default:
    188      1.2  scottr 		return wsdisplayioctl(cn_tab->cn_dev, cmd, addr, flag, p);
    189      1.2  scottr 	}
    190      1.2  scottr 
    191      1.2  scottr 	return (ENOTTY);
    192      1.2  scottr }
    193