166 lines
4.3 KiB
C
166 lines
4.3 KiB
C
/* $NetBSD: hp.c,v 1.4 1995/09/16 15:43:25 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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daddr_t part_offset;
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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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struct disklabel *lp;
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struct hp_softc *hs;
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volatile struct mba_regs *mr;
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volatile struct hp_drv *hd;
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char *msg;
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int i,err;
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lp = &hplabel;
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hs = &hp_softc;
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mr = (void *)mbaaddr[ctlr];
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hd = (void *)&mr->mba_md[unit];
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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)
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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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daddr_t dblk;
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u_int size, *rsize;
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char *buf;
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int func;
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{
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volatile struct mba_regs *mr;
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volatile struct hp_drv *hd;
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struct disklabel *lp;
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unsigned int i, pfnum, mapnr, nsize, bn, cn, sn, tn;
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mr = (void *)mbaaddr[hs->ctlr];
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hd = (void *)&mr->mba_md[hs->unit];
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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 + lp->d_partitions[hs->part].p_offset;
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if (bn) {
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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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} else
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cn = sn = tn = 0;
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hd->hp_dc = cn;
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hd->hp_da = (tn << 8) | sn;
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if (func == F_WRITE)
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hd->hp_cs1 = HPCS_WRITE;
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else
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hd->hp_cs1 = HPCS_READ;
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while (mr->mba_sr & MBASR_DTBUSY)
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;
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if (mr->mba_sr & MBACR_ABORT)
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return 1;
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*rsize = size;
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return 0;
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}
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