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/* $OpenBSD: netio.c,v 1.1 2012/03/19 17:38:31 miod Exp $ */
/*
* Copyright (c) 2012 Miodrag Vallat.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <lib/libkern/libkern.h>
#include <stand.h>
#include <mips64/arcbios.h>
int
netstrategy(void *devdata, int rw, daddr32_t bn, size_t reqcnt, void *addr,
size_t *cnt)
{
long fd = (long)devdata;
long result;
int rc;
rc = Bios_Read(fd, addr, reqcnt, &result);
if (rc != 0)
return (EIO);
*cnt = result;
return 0;
}
int
netopen(struct open_file *f, ...)
{
char *path;
long fd;
int rc;
va_list ap;
va_start(ap, f);
path = va_arg(ap, char *);
va_end(ap);
/* to match netfs.c filename buffers... */
if (strlen(path) > 128 - 1)
return ENAMETOOLONG;
rc = Bios_Open(path, 0, &fd);
if (rc != 0) {
switch (rc) {
case arc_EACCES:
return EACCES;
case arc_EISDIR:
return EISDIR;
case arc_ENOENT:
return ENOENT;
default:
return ENXIO;
}
}
f->f_devdata = (void *)fd;
return 0;
}
int
netclose(struct open_file *f)
{
long fd = (long)f->f_devdata;
(void)Bios_Close(fd);
return 0;
}
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