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/*
* $OpenBSD: xd.c,v 1.1 1997/01/16 09:26:45 niklas Exp $
* $NetBSD: xd.c,v 1.1.1.1 1996/11/29 23:36:29 is Exp $
*
* Copyright (c) 1996 Ignatios Souvatzis.
* Copyright (c) 1995 Waldi Ravens.
* 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 by Waldi Ravens.
* 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.
*/
#include <sys/types.h>
#include <stand.h>
#include <ufs.h>
#include "samachdep.h"
#include "amigaio.h"
#include "libstubs.h"
static int xdstrategy __P((void *, int, daddr_t, size_t, void *, size_t *));
static int xdopen __P((struct open_file *, ...));
static int xdclose __P((struct open_file *));
static int xdioctl __P((struct open_file *, u_long, void *));
static u_int32_t aio_base;
static struct AmigaIO *aio_save;
static struct devsw devsw[] = {
{ "xd", xdstrategy, xdopen, xdclose, xdioctl }
};
struct fs_ops file_system[] = {
{ ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, ufs_stat },
};
int nfsys = sizeof(file_system)/sizeof(struct fs_ops);
/* called from configure */
void
xdinit(aio)
void *aio;
{
aio_save = aio;
aio_base = aio_save->offset;
}
/*
* Kernel ist loaded from device and partition the kickstart
* menu or boot priority has chosen:
*/
int
devopen(f, fname, file)
struct open_file *f;
const char *fname;
char **file;
{
f->f_devdata = aio_save;
f->f_dev = &devsw[0];
*file = (char *)fname;
return 0;
}
/* tell kickstart to do the real work */
static int
xdstrategy (devd, flag, dblk, size, buf, rsize)
void *devd;
int flag;
daddr_t dblk;
size_t size;
void *buf;
size_t *rsize;
{
struct AmigaIO *aio = (struct AmigaIO *)devd;
if (flag != F_READ)
return EIO;
aio->cmd = Cmd_Rd;
aio->length = size;
aio->offset = aio_base + (dblk << 9);
aio->buf = buf;
#ifdef XDDEBUG
printf("strategy called: %ld(%ld), %ld, 0x%lx\n",
(long)dblk, (long)aio->offset, (long)size, (unsigned long)buf);
#endif
DoIO(aio);
#ifdef XDDEBUG
printf("strategy got err %ld, rsize %ld\n", aio->err, aio->actual);
#endif
if (aio->err) {
*rsize = 0;
return EIO;
}
*rsize = aio->actual;
return 0;
}
/* nothing do do for these: */
static int
xdopen(f)
struct open_file *f;
{
return 0;
}
static int
xdclose(f)
struct open_file *f;
{
return 0;
}
static int
xdioctl (f, cmd, data)
struct open_file *f;
u_long cmd;
void *data;
{
return EIO;
}
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