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/* $NetBSD: hp.c,v 1.5 1996/02/17 18:23:22 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 */
#include "sys/param.h"
#include "sys/disklabel.h"
#include "lib/libsa/stand.h"
#include "../include/pte.h"
#include "../include/macros.h"
#include "../mba/mbareg.h"
#include "../mba/hpreg.h"
#include "vaxstand.h"
/*
* These routines for HP disk standalone boot is wery simple,
* assuming a lots of thing like that we only working at one hp disk
* a time, no separate routines for mba driver etc..
* But it works :)
*/
struct hp_softc {
int adapt;
int ctlr;
int unit;
int part;
};
struct disklabel hplabel;
struct hp_softc hp_softc;
char io_buf[MAXBSIZE];
daddr_t part_offset;
hpopen(f, adapt, ctlr, unit, part)
struct open_file *f;
int ctlr, unit, part;
{
struct disklabel *lp;
struct hp_softc *hs;
volatile struct mba_regs *mr;
volatile struct hp_drv *hd;
char *msg;
int i,err;
lp = &hplabel;
hs = &hp_softc;
mr = (void *)mbaaddr[ctlr];
hd = (void *)&mr->mba_md[unit];
if (adapt > nsbi) return(EADAPT);
if (ctlr > nmba) return(ECTLR);
if (unit > MAXMBAU) return(EUNIT);
bzero(lp, sizeof(struct disklabel));
lp->d_secpercyl = 32;
lp->d_nsectors = 32;
hs->adapt = adapt;
hs->ctlr = ctlr;
hs->unit = unit;
hs->part = part;
/* Set volume valid and 16 bit format; only done once */
mr->mba_cr = MBACR_INIT;
hd->hp_cs1 = HPCS_PA;
hd->hp_of = HPOF_FMT;
err = hpstrategy(hs, F_READ, LABELSECTOR, DEV_BSIZE, io_buf, &i);
if (err) {
printf("reading disklabel: %s\n", strerror(err));
return 0;
}
msg = getdisklabel(io_buf + LABELOFFSET, lp);
if (msg)
printf("getdisklabel: %s\n", msg);
f->f_devdata = (void *)hs;
return 0;
}
hpstrategy(hs, func, dblk, size, buf, rsize)
struct hp_softc *hs;
daddr_t dblk;
u_int size, *rsize;
char *buf;
int func;
{
volatile struct mba_regs *mr;
volatile struct hp_drv *hd;
struct disklabel *lp;
unsigned int i, pfnum, mapnr, nsize, bn, cn, sn, tn;
mr = (void *)mbaaddr[hs->ctlr];
hd = (void *)&mr->mba_md[hs->unit];
lp = &hplabel;
pfnum = (u_int)buf >> PGSHIFT;
for(mapnr = 0, nsize = size; (nsize + NBPG) > 0; nsize -= NBPG)
*(int *)&mr->mba_map[mapnr++] = PG_V | pfnum++;
mr->mba_var = ((u_int)buf & PGOFSET);
mr->mba_bc = (~size) + 1;
bn = dblk + lp->d_partitions[hs->part].p_offset;
if (bn) {
cn = bn / lp->d_secpercyl;
sn = bn % lp->d_secpercyl;
tn = sn / lp->d_nsectors;
sn = sn % lp->d_nsectors;
} else
cn = sn = tn = 0;
hd->hp_dc = cn;
hd->hp_da = (tn << 8) | sn;
if (func == F_WRITE)
hd->hp_cs1 = HPCS_WRITE;
else
hd->hp_cs1 = HPCS_READ;
while (mr->mba_sr & MBASR_DTBUSY)
;
if (mr->mba_sr & MBACR_ABORT)
return 1;
*rsize = size;
return 0;
}
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