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/*
* net.c
*
* This file is part of aboot, the SRM bootloader for Linux/Alpha
* Copyright (C) 1996 Dave Larson, and David Mosberger.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <asm/console.h>
#include <asm/system.h>
#include <linux/string.h>
#include <config.h>
#include <cons.h>
#include <aboot.h>
#include <bootfs.h>
#include <utils.h>
extern char boot_file[256];
void
dang (void)
{
printf("aboot: oops, unimplemented net-bfs function called!\n");
}
int
net_bread (int fd, long blkno, long nblks, char * buf)
{
static char * src = 0;
extern char _end;
int nbytes;
if (!src)
src = (char *) (((unsigned long) &_end + 511) & ~511);
#ifdef DEBUG
printf("net_bread: %p -> %p (%ld blocks at %ld)\n", src, buf,
nblks, blkno);
#endif
nbytes = bfs->blocksize * nblks;
memcpy(buf, src, nbytes);
src += nbytes;
return nbytes;
}
struct bootfs netfs = {
-1, 512,
(int (*)(long, long, long)) dang, /* mount */
(int (*)(const char *)) dang, /* open */
net_bread, /* bread */
(void (*)(int fd)) dang, /* close */
(const char* (*)(int, int)) dang, /* readdir */
(int (*)(int, struct stat*)) dang, /* fstat */
};
long
load_kernel (void)
{
bfs = &netfs;
strcpy(boot_file, "network");
uncompress_kernel(-1);
memset((char*)bss_start, 0, bss_size); /* clear bss */
while (kernel_args[0] == 'i' && !kernel_args[1]) {
printf("Enter kernel arguments:\n");
printf("aboot> ");
getline(kernel_args, sizeof(kernel_args));
printf("\n");
}
return 0;
}
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