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/* $NetBSD: mba.c,v 1.1 1995/02/13 00:44:02 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
* 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 at Ludd, University of Lule}.
* 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.
*/
/* All bugs are subject to removal without further notice */
/* mba.c - main mba routines, 930312/ragge */
#include "mba.h"
#include "nexus.h"
#include "vax/mba/mbavar.h"
#include "vax/mba/mbareg.h"
struct mba_ctrl mba_ctrl[NMBA];
extern mba_0(), mba_1(), mba_2(), mba_3();
int (*mbaintv[4])() = { mba_0, mba_1, mba_2, mba_3 };
#if NMBA > 4
Need to expand the table for more than 4 massbus adaptors
#endif
mbainterrupt(mba){
if(mba_hd[mba].mh_mba->mba_sr&MBA_NED){
printf("Adresserat icke existerande massbussenhet.\n");
mba_hd[mba].mh_mba->mba_sr=MBA_NED+MBA_MCPE;
return;
}
printf("Interrupt fr}n massbussadapter %d\n",mba);
printf("mba_hd[mba]->mba_sr: %x\n",mba_hd[mba].mh_mba->mba_sr);
}
/*
* mbafind() set up interrupt vectors for each found mba and calls
* config routines for hp disks, tu and mt tapes (currently only hp).
*/
mbafind(nexnum,nexaddr){
struct mba_regs *mbr;
struct mba_device *mi;
mba_ctrl[nmba].mba_regs= (struct mba_regs *)nexaddr;
mbr=&(mba_ctrl[nmba].mba_regs);
/*
* Set up interruptvectors and enable interrupt
*/
nex_vec_num(14,nexnum)=nex_vec_num(15,nexnum)=
nex_vec_num(16,nexnum)=nex_vec_num(17,nexnum)=
(caddr_t)mbaintv[nmba];
mbr->mba_cr=MBCR_INIT;
mbr->mba_cr=MBCR_IE;
/*
* Loop thru all massbuss devices and check for existance
*/
for(i=0;i<8;i++){
if(!mbr->mba_drv[i].rmds&MBDS_DPR) continue;
/*
* Device found; check if generated
*/
for(mi = mbdinit; mi->driver; mi++) {
if(mi->alive) continue; /* Already config'd */
}
}
}
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