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/* $OpenBSD: hpib.c,v 1.4 2006/08/17 06:31:10 miod Exp $ */
/* $NetBSD: hpib.c,v 1.2 1997/05/12 07:48:23 thorpej Exp $ */
/*
* Copyright (c) 1982, 1990, 1993
* The Regents of the University of California. 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. 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.
*
* @(#)hpib.c 8.1 (Berkeley) 6/10/93
*/
/*
* HPIB driver
*/
#include <sys/param.h>
#include <sys/reboot.h>
#include <lib/libsa/stand.h>
#include "samachdep.h"
#include "device.h"
#include "hpibvar.h"
#include <hp300/dev/dioreg.h>
int internalhpib = IIOV(DIO_IHPIBADDR);
struct hpib_softc hpib_softc[NHPIB];
void
hpibinit()
{
extern struct hp_hw sc_table[];
struct hp_hw *hw;
struct hpib_softc *hs;
int i;
i = 0;
for (hw = sc_table; i < NHPIB && hw < &sc_table[MAXCTLRS]; hw++) {
if (!HW_ISHPIB(hw))
continue;
hs = &hpib_softc[i];
hs->sc_addr = hw->hw_kva;
if (nhpibinit(i) == 0)
if (fhpibinit(i) == 0)
continue;
if (howto & RB_ASKNAME)
printf("hpib%d at sc%d\n", i, hw->hw_sc);
hw->hw_pa = (caddr_t) i; /* XXX for autoconfig */
hs->sc_alive = 1;
i++;
}
}
int
hpibalive(int unit)
{
if (unit >= NHPIB || hpib_softc[unit].sc_alive == 0)
return (0);
return (1);
}
int
hpibid(int unit, int slave)
{
short id;
int rv;
if (hpib_softc[unit].sc_type == HPIBC)
rv = fhpibrecv(unit, 31, slave, (char *)&id, 2);
else
rv = nhpibrecv(unit, 31, slave, (char *)&id, 2);
if (rv != 2)
return (0);
return (id);
}
int
hpibsend(int unit, int slave, int sec, void *buf, int cnt)
{
if (hpib_softc[unit].sc_type == HPIBC)
return (fhpibsend(unit, slave, sec, (char *)buf, cnt));
else
return (nhpibsend(unit, slave, sec, (char *)buf, cnt));
}
int
hpibrecv(int unit, int slave, int sec, void *buf, int cnt)
{
if (hpib_softc[unit].sc_type == HPIBC)
return (fhpibrecv(unit, slave, sec, (char *)buf, cnt));
else
return (nhpibrecv(unit, slave, sec, (char *)buf, cnt));
}
int
hpibswait(int unit, int slave)
{
int timo = 1000000;
int (*poll)(int);
slave = 0x80 >> slave;
if (hpib_softc[unit].sc_type == HPIBC)
poll = fhpibppoll;
else
poll = nhpibppoll;
while (((*poll)(unit) & slave) == 0)
if (--timo == 0)
break;
if (timo == 0)
return (-1);
return (0);
}
void
hpibgo(int unit, int slave, int sec, void *addr, int count, int flag)
{
if (hpib_softc[unit].sc_type == HPIBC) {
if (flag == F_READ)
fhpibrecv(unit, slave, sec, (char *)addr, count);
else
fhpibsend(unit, slave, sec, (char *)addr, count);
} else {
if (flag == F_READ)
nhpibrecv(unit, slave, sec, (char *)addr, count);
else
nhpibsend(unit, slave, sec, (char *)addr, count);
}
}
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