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/*-
* Copyright (c) 2006 The FreeBSD Project
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/capability.h>
#include <sys/file.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <dev/tdfx/tdfx_linux.h>
LINUX_IOCTL_SET(tdfx, LINUX_IOCTL_TDFX_MIN, LINUX_IOCTL_TDFX_MAX);
/*
* Linux emulation IOCTL for /dev/tdfx
*/
static int
linux_ioctl_tdfx(struct thread *td, struct linux_ioctl_args* args)
{
cap_rights_t rights;
int error = 0;
u_long cmd = args->cmd & 0xffff;
/* The structure passed to ioctl has two shorts, one int
and one void*. */
char d_pio[2*sizeof(short) + sizeof(int) + sizeof(void*)];
struct file *fp;
error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
if (error != 0)
return (error);
/* We simply copy the data and send it right to ioctl */
copyin((caddr_t)args->arg, &d_pio, sizeof(d_pio));
error = fo_ioctl(fp, cmd, (caddr_t)&d_pio, td->td_ucred, td);
fdrop(fp, td);
return error;
}
static int
tdfx_linux_modevent(struct module *mod __unused, int what, void *arg __unused)
{
switch (what) {
case MOD_LOAD:
case MOD_UNLOAD:
return (0);
}
return (EOPNOTSUPP);
}
static moduledata_t tdfx_linux_mod = {
"tdfx_linux",
tdfx_linux_modevent,
0
};
/* As in SYSCALL_MODULE */
DECLARE_MODULE(tdfx_linux, tdfx_linux_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
MODULE_VERSION(tdfx_linux, 1);
MODULE_DEPEND(tdfx_linux, tdfx, 1, 1, 1);
MODULE_DEPEND(tdfx_linux, linux, 1, 1, 1);
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