NetBSD/sys/arch/newsmips/stand/boot/devopen.c

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/* $NetBSD: devopen.c,v 1.2 1999/12/22 05:54:41 tsubai Exp $ */
/*-
* Copyright (C) 1999 Tsubai Masanari. 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 <lib/libkern/libkern.h>
#include <lib/libsa/stand.h>
#include <lib/libsa/ufs.h>
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#include <netinet/in.h>
#include <lib/libsa/nfs.h>
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#include <machine/apcall.h>
#include <machine/romcall.h>
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#include <promdev.h>
#ifdef BOOT_DEBUG
# define DPRINTF printf
#else
# define DPRINTF while (0) printf
#endif
int dkopen __P((struct open_file *, ...));
int dkclose __P((struct open_file *));
int dkstrategy __P((void *, int, daddr_t, size_t, void *, size_t *));
struct devsw devsw[] = {
{ "dk", dkstrategy, dkopen, dkclose, noioctl }
};
int ndevs = sizeof(devsw) / sizeof(devsw[0]);
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struct fs_ops file_system_ufs[] = {
{ ufs_open, ufs_close, ufs_read, ufs_write, ufs_seek, ufs_stat }
};
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struct fs_ops file_system_nfs[] = {
{ nfs_open, nfs_close, nfs_read, nfs_write, nfs_seek, nfs_stat },
};
struct fs_ops file_system[1];
int nfsys = sizeof(file_system) / sizeof(file_system[0]);
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struct romdev romdev;
extern int apbus;
int
devopen(f, fname, file)
struct open_file *f;
const char *fname;
char **file; /* out */
{
int fd;
char devname[32];
char *cp;
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int error = 0;
DPRINTF("devopen: %s\n", fname);
strcpy(devname, fname);
cp = strchr(devname, ')') + 1;
*cp = 0;
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if (apbus)
fd = apcall_open(devname, 2);
else
fd = rom_open(devname, 2);
DPRINTF("devname = %s, fd = %d\n", devname, fd);
if (fd == -1)
return -1;
romdev.fd = fd;
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if (strncmp(devname, "sonic", 5) == 0)
romdev.devtype = DT_NET;
else
romdev.devtype = DT_BLOCK;
f->f_dev = devsw;
f->f_devdata = &romdev;
*file = strchr(fname, ')') + 1;
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if (romdev.devtype == DT_BLOCK)
bcopy(file_system_ufs, file_system, sizeof(file_system));
else { /* DT_NET */
bcopy(file_system_nfs, file_system, sizeof(file_system));
if ((error = net_open(&romdev)) != 0) {
printf("Can't open NFS network connection on `%s'\n",
devname);
return error;
}
}
return 0;
}
int
dkopen(struct open_file *f, ...)
{
DPRINTF("dkopen\n");
return 0;
}
int
dkclose(f)
struct open_file *f;
{
struct romdev *dev = f->f_devdata;
DPRINTF("dkclose\n");
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if (apbus)
apcall_close(dev->fd);
else
rom_close(dev->fd);
return 0;
}
int
dkstrategy(devdata, rw, blk, size, buf, rsize)
void *devdata;
int rw;
daddr_t blk;
size_t size;
void *buf;
size_t *rsize; /* out: number of bytes transfered */
{
struct romdev *dev = devdata;
/* XXX should use partition offset */
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if (apbus) {
apcall_lseek(dev->fd, blk * 512, 0);
apcall_read(dev->fd, buf, size);
} else {
rom_lseek(dev->fd, blk * 512, 0);
rom_read(dev->fd, buf, size);
}
*rsize = size; /* XXX */
return 0;
}