NetBSD/sys/arch/sun3/dev/idprom.c

117 lines
3.5 KiB
C
Raw Normal View History

1997-04-29 01:55:59 +04:00
/* $NetBSD: idprom.c,v 1.19 1997/04/28 21:55:59 gwr Exp $ */
1994-11-22 00:26:40 +03:00
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
1994-11-22 00:26:40 +03:00
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Adam Glass and Gordon W. Ross.
*
1994-11-22 00:26:40 +03:00
* 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 by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
1994-11-22 00:26:40 +03:00
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
1994-11-22 00:26:40 +03:00
*/
1994-10-26 12:07:55 +03:00
1994-05-06 11:47:05 +04:00
/*
* Machine ID PROM - system type and serial number
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <machine/autoconf.h>
#include <machine/control.h>
#include <machine/idprom.h>
1997-01-28 00:57:44 +03:00
#include <machine/machdep.h>
#include <machine/mon.h>
/*
* This structure is what this driver is all about.
* It is copied from the device early in startup.
*/
struct idprom identity_prom;
/*
* This is called very early during startup to
* get a copy of the idprom from control space.
*/
void
idprom_init()
{
struct idprom *idp;
char *src, *dst;
int len, x, xorsum;
union {
long l;
char c[4];
} hid;
1997-04-29 01:55:59 +04:00
/* Copy the IDPROM contents and do the checksum. */
idp = &identity_prom;
dst = (char*)idp;
src = (char*)IDPROM_BASE;
len = IDPROM_SIZE;
xorsum = 0; /* calculated as xor of data */
do {
x = get_control_byte(src++);
*dst++ = x;
xorsum ^= x;
} while (--len > 0);
1997-04-29 01:55:59 +04:00
if (xorsum != 0)
mon_printf("idprom: bad checksum=%d\n", xorsum);
if (idp->idp_format < 1)
mon_printf("idprom: bad version=%d\n", idp->idp_format);
/*
* Construct the hostid from the idprom contents.
* This appears to be the way SunOS does it.
*/
hid.c[0] = idp->idp_machtype;
hid.c[1] = idp->idp_serialnum[0];
hid.c[2] = idp->idp_serialnum[1];
hid.c[3] = idp->idp_serialnum[2];
hostid = hid.l;
}
1997-04-29 01:55:59 +04:00
void
idprom_etheraddr(eaddrp)
u_char *eaddrp;
{
u_char *src, *dst;
int len = 6;
src = identity_prom.idp_etheraddr;
dst = eaddrp;
do *dst++ = *src++;
while (--len > 0);
}