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/* $OpenBSD: apci.c,v 1.2 1998/05/10 11:31:17 downsj Exp $ */
/* $NetBSD: apci.c,v 1.1 1997/05/12 07:41:55 thorpej Exp $ */
/*
* Copyright (c) 1997 Jason R. Thorpe. All rights reserved.
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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.
*
* @(#)dca.c 8.1 (Berkeley) 6/10/93
*/
#ifdef APCICONSOLE
#include <sys/param.h>
#include <dev/cons.h>
#include <hp300/dev/frodoreg.h> /* for APCI offsets */
#include <hp300/dev/apcireg.h> /* for register map */
#include <hp300/dev/dcareg.h> /* for register bits */
#include "consdefs.h"
#include "samachdep.h"
struct apciregs *apcicnaddr = 0;
void
apciprobe(cp)
struct consdev *cp;
{
struct apciregs *apci = apcicnaddr =
(struct apciregs *)IIOV(FRODO_BASE + FRODO_APCI_OFFSET(1));
struct dcadevice *dca = (struct dcadevice *)sctoaddr(9);
cp->cn_pri = CN_DEAD;
/* Only 400-series machines can have this. */
switch (machineid) {
case HP_400:
case HP_425:
case HP_433:
break;
default:
return;
}
/* Make sure there's not a DCA in the way. */
if (badaddr((caddr_t)dca) == 0) {
switch (dca->dca_id) {
case DCAID0:
case DCAID1:
case DCAREMID0:
case DCAREMID1:
return;
}
}
#ifdef FORCEAPCICONSOLE
cp->cn_pri = CN_REMOTE;
#else
cp->cn_pri = CN_NORMAL;
#endif
curcons_scode = -2;
}
void
apciinit(cp)
struct consdev *cp;
{
struct apciregs *apci = (struct apciregs *)apcicnaddr;
apci->ap_cfcr = CFCR_DLAB;
apci->ap_data = APCIBRD(9600) & 0xff;
apci->ap_ier = (APCIBRD(9600) >> 8) & 0xff;
apci->ap_cfcr = CFCR_8BITS;
apci->ap_fifo =
FIFO_ENABLE | FIFO_RCV_RST | FIFO_XMT_RST | FIFO_TRIGGER_1;
apci->ap_mcr = MCR_DTR | MCR_RTS;
}
/* ARGSUSED */
#ifndef SMALL
int
apcigetchar(dev)
dev_t dev;
{
register struct apciregs *apci = apcicnaddr;
short stat;
int c;
if (((stat = apci->ap_lsr) & LSR_RXRDY) == 0)
return (0);
c = apci->ap_data;
return (c);
}
#else
int
apcigetchar(dev)
dev_t dev;
{
return (0);
}
#endif
/* ARGSUSED */
void
apciputchar(dev, c)
dev_t dev;
int c;
{
struct apciregs *apci = apcicnaddr;
int timo;
short stat;
/* wait a reasonable time for the transmitter to come ready */
timo = 50000;
while (((stat = apci->ap_lsr) & LSR_TXRDY) == 0 && --timo)
;
apci->ap_data = c;
/* wait for this transmission to complete */
timo = 1000000;
while (((stat = apci->ap_lsr) & LSR_TXRDY) == 0 && --timo)
;
}
#endif
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