158 lines
4.2 KiB
C
158 lines
4.2 KiB
C
/* $NetBSD: hpib.c,v 1.2 1997/05/12 07:48:23 thorpej Exp $ */
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/*
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* Copyright (c) 1982, 1990, 1993
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* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)hpib.c 8.1 (Berkeley) 6/10/93
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*/
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/*
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* HPIB driver
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*/
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#include <sys/param.h>
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#include <sys/reboot.h>
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#include <lib/libsa/stand.h>
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#include <hp300/stand/common/device.h>
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#include <hp300/stand/common/hpibvar.h>
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#include <hp300/stand/common/samachdep.h>
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#include <hp300/dev/dioreg.h>
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int internalhpib = IIOV(DIO_IHPIBADDR);
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int fhpibppoll(), nhpibppoll();
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struct hpib_softc hpib_softc[NHPIB];
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hpibinit()
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{
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extern struct hp_hw sc_table[];
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register struct hp_hw *hw;
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register struct hpib_softc *hs;
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register int i, addr;
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i = 0;
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for (hw = sc_table; i < NHPIB && hw < &sc_table[MAXCTLRS]; hw++) {
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if (!HW_ISHPIB(hw))
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continue;
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hs = &hpib_softc[i];
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hs->sc_addr = hw->hw_kva;
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if (nhpibinit(i) == 0)
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if (fhpibinit(i) == 0)
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continue;
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if (howto & RB_ASKNAME)
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printf("hpib%d at sc%d\n", i, hw->hw_sc);
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hw->hw_pa = (caddr_t) i; /* XXX for autoconfig */
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hs->sc_alive = 1;
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i++;
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}
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}
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hpibalive(unit)
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register int unit;
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{
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if (unit >= NHPIB || hpib_softc[unit].sc_alive == 0)
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return (0);
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return (1);
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}
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hpibid(unit, slave)
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int unit, slave;
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{
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short id;
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int rv;
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if (hpib_softc[unit].sc_type == HPIBC)
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rv = fhpibrecv(unit, 31, slave, &id, 2);
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else
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rv = nhpibrecv(unit, 31, slave, &id, 2);
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if (rv != 2)
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return (0);
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return (id);
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}
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hpibsend(unit, slave, sec, buf, cnt)
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int unit, slave;
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char *buf;
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int cnt;
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{
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if (hpib_softc[unit].sc_type == HPIBC)
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return (fhpibsend(unit, slave, sec, buf, cnt));
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return (nhpibsend(unit, slave, sec, buf, cnt));
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}
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hpibrecv(unit, slave, sec, buf, cnt)
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int unit, slave;
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char *buf;
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int cnt;
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{
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if (hpib_softc[unit].sc_type == HPIBC)
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return (fhpibrecv(unit, slave, sec, buf, cnt));
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return (nhpibrecv(unit, slave, sec, buf, cnt));
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}
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hpibswait(unit, slave)
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register int unit, slave;
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{
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register int timo = 1000000;
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register int (*poll)();
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slave = 0x80 >> slave;
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if (hpib_softc[unit].sc_type == HPIBC)
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poll = fhpibppoll;
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else
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poll = nhpibppoll;
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while (((*poll)(unit) & slave) == 0)
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if (--timo == 0)
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break;
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if (timo == 0)
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return (-1);
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return (0);
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}
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hpibgo(unit, slave, sec, addr, count, flag)
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int unit, slave;
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char *addr;
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{
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if (hpib_softc[unit].sc_type == HPIBC)
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if (flag == F_READ)
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fhpibrecv(unit, slave, sec, addr, count);
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else
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fhpibsend(unit, slave, sec, addr, count);
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else
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if (flag == F_READ)
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nhpibrecv(unit, slave, sec, addr, count);
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else
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nhpibsend(unit, slave, sec, addr, count);
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}
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