diff options
Diffstat (limited to 'sys/dev/tdfx/tdfx_linux.c')
-rw-r--r-- | sys/dev/tdfx/tdfx_linux.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/sys/dev/tdfx/tdfx_linux.c b/sys/dev/tdfx/tdfx_linux.c new file mode 100644 index 0000000..2e877f6 --- /dev/null +++ b/sys/dev/tdfx/tdfx_linux.c @@ -0,0 +1,87 @@ +/*- + * 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/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) +{ + 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; + + if ((error = fget(td, args->fd, &fp)) != 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); |