/*      $NetBSD: linux32_ioctl.h,v 1.6 2021/11/25 03:08:04 ryo Exp $ */

/*-
* Copyright (c) 1995-2006 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Frank van der Linden, Eric Haszlakiewicz, and Emmanuel Dreyfus.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/

#ifndef _LINUX32_IOCTL_H
#define _LINUX32_IOCTL_H

#if defined(__aarch64__)
#include <compat/linux32/arch/aarch64/linux32_ioctl.h>
#elif defined(__amd64__)
#include <compat/linux32/arch/amd64/linux32_ioctl.h>
#else
#error Undefined linux32_ioctl.h machine type.
#endif

#ifdef _KERNEL
__BEGIN_DECLS
struct linux32_sys_ioctl_args;
int linux32_ioctl_termios(struct lwp *, const struct linux32_sys_ioctl_args *,
   register_t *);
int linux32_ioctl_socket(struct lwp *, const struct linux32_sys_ioctl_args *,
   register_t *);
__END_DECLS
#endif

#define _LINUX32_IOC_NRMASK     ((1 << _LINUX32_IOC_NRBITS) - 1)
#define _LINUX32_IOC_TYPEMASK   ((1 << _LINUX32_IOC_TYPEBITS) - 1)
#define _LINUX32_IOC_SIZEMAEK   ((1 << _LINUX32_IOC_SIZEBITS) - 1)
#define _LINUX32_IOC_DIRMASK    ((1 << _LINUX32_IOC_DIRBITS) - 1)

#define _LINUX32_IOC_TYPESHIFT  (_LINUX32_IOC_NRSHIFT + _LINUX32_IOC_NRBITS)
#define _LINUX32_IOC_SIZESHIFT  (_LINUX32_IOC_TYPESHIFT + _LINUX32_IOC_TYPEBITS)
#define _LINUX32_IOC_DIRSHIFT   (_LINUX32_IOC_SIZESHIFT + _LINUX32_IOC_SIZEBITS)

#define _LINUX32_IOC(dir,type,nr,size)          \
       (((nr)   << _LINUX32_IOC_NRSHIFT) |     \
        ((type) << _LINUX32_IOC_TYPESHIFT) |   \
        ((size) << _LINUX32_IOC_SIZESHIFT) |   \
        ((dir)  << _LINUX32_IOC_DIRSHIFT))

#define _LINUX32_IO(type,nr)            \
   _LINUX32_IOC(_LINUX32_IOC_NONE,(type),(nr),0)
#define _LINUX32_IOR(type,nr,size)      \
   _LINUX32_IOC(_LINUX32_IOC_READ,(type),(nr),sizeof(size))
#define _LINUX32_IOW(type,nr,size)      \
   _LINUX32_IOC(_LINUX32_IOC_WRITE,(type),(nr),sizeof(size))
#define _LINUX32_IOWR(type,nr,size)     \
   _LINUX32_IOC(_LINUX32_IOC_READ|_LINUX32_IOC_WRITE,(type),(nr),sizeof(size))

#define _LINUX32_IOC_DIR(nr)    \
       (((nr) >> _LINUX32_IOC_DIRSHIFT) & _LINUX32_IOC_DIRMASK)
#define _LINUX32_IOC_TYPE(nr)   \
       (((nr) >> _LINUX32_IOC_TYPESHIFT) & _LINUX32_IOC_TYPEMASK)
#define _LINUX32_IOC_NR(nr)     \
       (((nr) >> _LINUX32_IOC_NRSHIFT) & _LINUX32_IOC_NRMASK)
#define _LINUX32_IOC_SIZE(nr)   \
       (((nr) >> _LINUX32_IOC_SIZESHIFT) & _LINUX32_IOC_SIZEMASK)

#define LINUX32_IOCGROUP(x)     _LINUX32_IOC_TYPE(x)

#endif /* !_LINUX32_IOCTL_H */