100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
|
|
/* $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 */
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|