139 lines
4.0 KiB
C
139 lines
4.0 KiB
C
/* $NetBSD: hp.c,v 1.3 1995/04/25 14:14:27 ragge Exp $ */
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/*
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* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
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* 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 at Ludd, University of Lule}.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* All bugs are subject to removal without further notice */
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#include "sys/param.h"
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#include "sys/disklabel.h"
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#include "lib/libsa/stand.h"
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#include "../mba/mbareg.h"
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#include "../mba/hpreg.h"
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#include "../include/pte.h"
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#include "../include/macros.h"
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#include "vaxstand.h"
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/*
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* These routines for HP disk standalone boot is wery simple,
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* assuming a lots of thing like that we only working at one hp disk
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* a time, no separate routines for mba driver etc..
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* But it works :)
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*/
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struct hp_softc {
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int adapt;
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int ctlr;
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int unit;
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int part;
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};
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struct disklabel hplabel;
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struct hp_softc hp_softc;
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char io_buf[MAXBSIZE];
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hpopen(f, adapt, ctlr, unit, part)
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struct open_file *f;
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int ctlr, unit, part;
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{
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char *msg;
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struct disklabel *lp=&hplabel;
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struct hp_softc *hs=&hp_softc;
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volatile struct mba_regs *mr=(void *)mbaaddr[ctlr];
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volatile struct hp_drv *hd= (void *)&mr->mba_md[unit];
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int i,err;
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if(adapt>nsbi) return(EADAPT);
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if(ctlr>nmba) return(ECTLR);
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if(unit>MAXMBAU) return(EUNIT);
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bzero(lp, sizeof(struct disklabel));
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lp->d_secpercyl=32;
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lp->d_nsectors=32;
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hs->adapt=adapt;
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hs->ctlr=ctlr;
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hs->unit=unit;
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hs->part=part;
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/* Set volume valid and 16 bit format; only done once */
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mr->mba_cr=MBACR_INIT;
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hd->hp_cs1=HPCS_PA;
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hd->hp_of=HPOF_FMT;
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err=hpstrategy(hs,F_READ, LABELSECTOR, DEV_BSIZE, io_buf, &i);
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if(err){
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printf("reading disklabel: %s\n",strerror(err));
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return 0;
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}
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msg=getdisklabel(io_buf+LABELOFFSET, lp);
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if(msg)printf("getdisklabel: %s\n",msg);
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f->f_devdata=(void *)hs;
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return(0);
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}
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hpstrategy(hs, func, dblk, size, buf, rsize)
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struct hp_softc *hs;
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int func;
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daddr_t dblk;
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char *buf;
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u_int size, *rsize;
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{
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u_int i,pfnum, mapnr, nsize, bn, cn, sn, tn;
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volatile struct mba_regs *mr=(void *)mbaaddr[hs->ctlr];
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volatile struct hp_drv *hd= (void *)&mr->mba_md[hs->unit];
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struct disklabel *lp=&hplabel;
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pfnum=(u_int)buf>>PGSHIFT;
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for(mapnr=0, nsize=size;(nsize+NBPG)>0;nsize-=NBPG)
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mr->mba_map[mapnr++]=PG_V|pfnum++;
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mr->mba_var=((u_int)buf&PGOFSET);
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mr->mba_bc=(~size)+1;
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bn=dblk;
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cn=bn / lp->d_secpercyl;
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sn=bn % lp->d_secpercyl;
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tn=sn / lp->d_nsectors;
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sn=sn % lp->d_nsectors;
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hd->hp_dc=cn;
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hd->hp_da=(tn<<8)|sn;
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hd->hp_cs1=HPCS_READ;
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while(mr->mba_sr&MBASR_DTBUSY);
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if(mr->mba_sr&MBACR_ABORT) return 1;
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*rsize=size;
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return 0;
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}
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