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/* $NetBSD: rd_hooks.c,v 1.5 1996/03/28 21:14:13 mark Exp $ */
/*
* Copyright (c) 1995 Gordon W. Ross
* 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. 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.
*/
#include <sys/param.h>
#include <sys/reboot.h>
#include <sys/device.h>
#include <vm/vm.h>
#include <vm/vm_map.h>
#include <vm/vm_kern.h>
#include <dev/ramdisk.h>
#ifndef RAMDISK_SIZE
#define RAMDISK_SIZE 0
#endif
/*extern int boothowto;*/
extern u_int ramdisc_size;
struct rd_conf *bootrd = NULL;
int load_ramdisc_from_floppy __P((struct rd_conf *rd, dev_t dev));
/*
* This is called during autoconfig.
*/
int
rd_match_hook(parent, self, aux)
struct device *parent;
void *self;
void *aux;
{
return (1);
}
void
rd_attach_hook(unit, rd)
int unit;
struct rd_conf *rd;
{
if (unit == 0) {
if (ramdisc_size == 0 && RAMDISK_SIZE)
ramdisc_size = (RAMDISK_SIZE * 1024);
if (ramdisc_size != 0) {
rd->rd_size = round_page(ramdisc_size);
rd->rd_addr = (caddr_t)kmem_alloc(kernel_map, ramdisc_size);
rd->rd_type = RD_KMEM_FIXED;
bootrd = rd;
}
}
printf("rd%d: allocated %dK (%d blocks)\n", unit, rd->rd_size / 1024, rd->rd_size / DEV_BSIZE);
}
/*
* This is called during open (i.e. mountroot)
*/
void
rd_open_hook(unit, rd)
int unit;
struct rd_conf *rd;
{
/* I use the ramdisc for other testing ... */
#if 0
if (unit == 0) {
/* The root ramdisk only works single-user. */
boothowto |= RB_SINGLE;
}
#endif
}
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