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path: root/sys/arch/hppa/stand/libsa/itecons.c
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/*	$OpenBSD: itecons.c,v 1.3 1998/07/13 03:36:00 mickey Exp $	*/

/*
 * Copyright (c) 1998 Michael Shalayeff
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Michael Shalayeff.
 * 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 1996 1995 by Open Software Foundation, Inc.   
 *              All Rights Reserved 
 *  
 * Permission to use, copy, modify, and distribute this software and 
 * its documentation for any purpose and without fee is hereby granted, 
 * provided that the above copyright notice appears in all copies and 
 * that both the copyright notice and this permission notice appear in 
 * supporting documentation. 
 *  
 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE. 
 *  
 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 
 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
 * 
 */

#include "libsa.h"

#include <sys/param.h>
#include <sys/disklabel.h>
#include <machine/pdc.h>
#include <machine/iodc.h>
#include <machine/iomod.h>
#include <dev/cons.h>

#include "dev_hppa.h"

iodcio_t cniodc;	/* console IODC entry point */
iodcio_t kyiodc;	/* keyboard IODC entry point */

/*
 * Console.
 */

char cnbuf[MINIOSIZ] __attribute__ ((aligned (MINIOSIZ)));
int kycode[IODC_MAXSIZE/sizeof(int)];

int
cnspeed(dev, sp)
	dev_t	dev;
	int	sp;
{
	return 9600;
}

void
ite_probe(cn)
	struct consdev *cn;
{
	cniodc = (iodcio_t)PAGE0->mem_free;

	if ((*pdc)   (PDC_IODC, PDC_IODC_READ, pdcbuf, CN_HPA, IODC_INIT,
		      cniodc, IODC_MAXSIZE) < 0 ||
	    (*cniodc)(CN_HPA, (CN_HPA==BT_HPA)? IODC_INIT_DEV: IODC_INIT_ALL,
		      CN_SPA, CN_LAYER, pdcbuf, 0,0,0,0) < 0 ||
	    (*pdc)   (PDC_IODC, PDC_IODC_READ, pdcbuf, CN_HPA, IODC_IO,
		      cniodc, IODC_MAXSIZE) < 0) {
		/* morse code with the LED's?!! */
		CN_IODC = KY_IODC = NULL;
	} else {
        	cn->cn_pri = CN_INTERNAL;
		cn->cn_dev = makedev(0, 0);
	}
}

void
ite_init(cn)
	struct consdev *cn;
{
	/*
	 * If the keyboard is separate from the console output device,
	 * we load the keyboard code at `kycode'.
	 *
	 * N.B. In this case, since the keyboard code is part of the
	 * boot code, it will be overwritten when we load a kernel.
	 */
	if (CN_CLASS != PCL_DUPLEX || KY_CLASS == PCL_KEYBD) {

		kyiodc = (iodcio_t)kycode;

		if ((*pdc)   (PDC_IODC, PDC_IODC_READ, pdcbuf, KY_HPA,
			      IODC_INIT, kyiodc, IODC_MAXSIZE) < 0 ||
		    (*kyiodc)(KY_HPA, (KY_HPA == BT_HPA || KY_HPA == CN_HPA)?
			      IODC_INIT_DEV: IODC_INIT_ALL,
			      KY_SPA, KY_LAYER, pdcbuf, 0,0,0,0) < 0 ||
		    (*pdc)   (PDC_IODC, PDC_IODC_READ, pdcbuf, KY_HPA,
			      IODC_IO, kyiodc, IODC_MAXSIZE))
			kyiodc = NULL;
	} else {
		kyiodc = cniodc;

		bcopy((char *)&PAGE0->mem_cons, (char *)&PAGE0->mem_kbd,
		      sizeof(struct pz_device));
	}

	CN_IODC = cniodc;
	KY_IODC = kyiodc;
#ifdef DEBUG
	if (!kyiodc)
		printf("ite_init: no kbd\n");
#endif
}

void
ite_putc(dev, c)
	dev_t dev;
	int c;
{
	if (cniodc == NULL)
		return;

	*cnbuf = c;

	(*cniodc)(CN_HPA, IODC_IO_CONSOUT, CN_SPA, CN_LAYER,
	                 pdcbuf, 0, cnbuf, 1, 0);
}

/*
 * since i don't know how to 'just check the char available'
 * i store the key into the stash removing on read op later;
 */
int
ite_getc(dev)
	dev_t dev;
{
	static int stash = 0;
	register int err;
	register int c, l;

	if (kyiodc == NULL)
		return(0x100);

	if (stash) {
		c = stash;
		if (!(dev & 0x80))
			stash = 0;
		return c;
	}

	do {
		err = (*kyiodc)(KY_HPA, IODC_IO_CONSIN, KY_SPA, KY_LAYER,
				pdcbuf, 0, cnbuf, 1, 0);
		l = pdcbuf[0];
		c = cnbuf[0];
#ifdef DEBUG
		if (debug && err < 0)
			printf("KBD input error: %d", err);
#endif

		/* if we are doing ischar() report immidiatelly */
		if (dev & 0x80 && l == 0) {
#ifdef DEBUG
			if (debug > 2)
				printf("ite_getc(0x%x): no char %d(%x)\n",
				       dev, l, c);
#endif
			return (0);
		}
	} while(!l);

#if DEBUG
	if (debug && l > 1)
		printf("KBD input got too much (%d)\n", l);

	if (debug > 3)
		printf("kbd: \'%c\' (0x%x)\n", c, c);
#endif
	if (dev & 0x80)
		stash = c;

	return (c);
}

void
ite_pollc(dev, on)
	dev_t dev;
	int on;
{

}