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/* $OpenBSD: hp.c,v 1.2 2002/06/11 09:36:23 hugh Exp $ */
/* $NetBSD: hp.c,v 1.5 2000/07/19 00:58:25 matt 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/rpb.h"
#include "../include/sid.h"
#define VAX780 1
struct proc;
#include "../include/ka750.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 :)
*/
static struct disklabel hplabel;
static char io_buf[DEV_BSIZE];
static int dpart;
static int adpadr, unitadr;
#define MBA_WCSR(reg, val) \
((void)(*(volatile u_int32_t *)((adpadr) + (reg)) = (val)));
#define MBA_RCSR(reg) \
(*(volatile u_int32_t *)((adpadr) + (reg)))
#define HP_WCSR(reg, val) \
((void)(*(volatile u_int32_t *)((unitadr) + (reg)) = (val)));
#define HP_RCSR(reg) \
(*(volatile u_int32_t *)((unitadr) + (reg)))
int
hpopen(struct open_file *f, int adapt, int ctlr, int unit, int part)
{
char *msg;
int err;
size_t i;
if (askname == 0) { /* Take info from RPB */
adpadr = bootrpb.adpphy;
unitadr = adpadr + MUREG(bootrpb.unit, 0);
} else {
adpadr = nexaddr;
unitadr = adpadr + MUREG(unit, 0);
bootrpb.adpphy = adpadr;
bootrpb.unit = unit;
}
bzero(&hplabel, sizeof(struct disklabel));
hplabel.d_secpercyl = 32;
hplabel.d_nsectors = 32;
/* Set volume valid and 16 bit format; only done once */
MBA_WCSR(MBA_CR, MBACR_INIT);
HP_WCSR(HP_CS1, HPCS_PA);
HP_WCSR(HP_OF, HPOF_FMT);
err = hpstrategy(0, F_READ, LABELSECTOR, DEV_BSIZE, io_buf, &i);
if (err) {
printf("reading disklabel: %s\n", strerror(err));
return 0;
}
msg = getdisklabel(io_buf + LABELOFFSET, &hplabel);
if (msg)
printf("getdisklabel: %s\n", msg);
return 0;
}
int
hpstrategy(void *f, int func, daddr_t dblk,
size_t size, void *buf, size_t *rsize)
{
unsigned int pfnum, mapnr, nsize, bn, cn, sn, tn;
pfnum = (u_int)buf >> VAX_PGSHIFT;
for(mapnr = 0, nsize = size; (nsize + VAX_NBPG) > 0;
nsize -= VAX_NBPG, mapnr++, pfnum++)
MBA_WCSR(MAPREG(mapnr), PG_V | pfnum);
MBA_WCSR(MBA_VAR, ((u_int)buf & VAX_PGOFSET));
MBA_WCSR(MBA_BC, (~size) + 1);
bn = dblk + hplabel.d_partitions[dpart].p_offset;
if (bn) {
cn = bn / hplabel.d_secpercyl;
sn = bn % hplabel.d_secpercyl;
tn = sn / hplabel.d_nsectors;
sn = sn % hplabel.d_nsectors;
} else
cn = sn = tn = 0;
HP_WCSR(HP_DC, cn);
HP_WCSR(HP_DA, (tn << 8) | sn);
#ifdef notdef
if (func == F_WRITE)
HP_WCSR(HP_CS1, HPCS_WRITE);
else
#endif
HP_WCSR(HP_CS1, HPCS_READ);
while (MBA_RCSR(MBA_SR) & MBASR_DTBUSY)
;
if (MBA_RCSR(MBA_SR) & MBACR_ABORT)
return 1;
*rsize = size;
return 0;
}
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