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      1 /*	$NetBSD: linux32_ioctl.h,v 1.6 2021/11/25 03:08:04 ryo Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1995-2006 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Frank van der Linden, Eric Haszlakiewicz, and Emmanuel Dreyfus.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _LINUX32_IOCTL_H
     33 #define _LINUX32_IOCTL_H
     34 
     35 #if defined(__aarch64__)
     36 #include <compat/linux32/arch/aarch64/linux32_ioctl.h>
     37 #elif defined(__amd64__)
     38 #include <compat/linux32/arch/amd64/linux32_ioctl.h>
     39 #else
     40 #error Undefined linux32_ioctl.h machine type.
     41 #endif
     42 
     43 #ifdef _KERNEL
     44 __BEGIN_DECLS
     45 struct linux32_sys_ioctl_args;
     46 int linux32_ioctl_termios(struct lwp *, const struct linux32_sys_ioctl_args *,
     47     register_t *);
     48 int linux32_ioctl_socket(struct lwp *, const struct linux32_sys_ioctl_args *,
     49     register_t *);
     50 __END_DECLS
     51 #endif
     52 
     53 #define	_LINUX32_IOC_NRMASK	((1 << _LINUX32_IOC_NRBITS) - 1)
     54 #define	_LINUX32_IOC_TYPEMASK	((1 << _LINUX32_IOC_TYPEBITS) - 1)
     55 #define	_LINUX32_IOC_SIZEMAEK	((1 << _LINUX32_IOC_SIZEBITS) - 1)
     56 #define _LINUX32_IOC_DIRMASK	((1 << _LINUX32_IOC_DIRBITS) - 1)
     57 
     58 #define	_LINUX32_IOC_TYPESHIFT	(_LINUX32_IOC_NRSHIFT + _LINUX32_IOC_NRBITS)
     59 #define	_LINUX32_IOC_SIZESHIFT	(_LINUX32_IOC_TYPESHIFT + _LINUX32_IOC_TYPEBITS)
     60 #define	_LINUX32_IOC_DIRSHIFT	(_LINUX32_IOC_SIZESHIFT + _LINUX32_IOC_SIZEBITS)
     61 
     62 #define	_LINUX32_IOC(dir,type,nr,size)		\
     63 	(((nr)   << _LINUX32_IOC_NRSHIFT) |	\
     64 	 ((type) << _LINUX32_IOC_TYPESHIFT) |	\
     65 	 ((size) << _LINUX32_IOC_SIZESHIFT) |	\
     66 	 ((dir)  << _LINUX32_IOC_DIRSHIFT))
     67 
     68 #define _LINUX32_IO(type,nr)		\
     69     _LINUX32_IOC(_LINUX32_IOC_NONE,(type),(nr),0)
     70 #define	_LINUX32_IOR(type,nr,size)	\
     71     _LINUX32_IOC(_LINUX32_IOC_READ,(type),(nr),sizeof(size))
     72 #define	_LINUX32_IOW(type,nr,size)	\
     73     _LINUX32_IOC(_LINUX32_IOC_WRITE,(type),(nr),sizeof(size))
     74 #define	_LINUX32_IOWR(type,nr,size)	\
     75     _LINUX32_IOC(_LINUX32_IOC_READ|_LINUX32_IOC_WRITE,(type),(nr),sizeof(size))
     76 
     77 #define _LINUX32_IOC_DIR(nr)	\
     78 	(((nr) >> _LINUX32_IOC_DIRSHIFT) & _LINUX32_IOC_DIRMASK)
     79 #define _LINUX32_IOC_TYPE(nr)	\
     80 	(((nr) >> _LINUX32_IOC_TYPESHIFT) & _LINUX32_IOC_TYPEMASK)
     81 #define _LINUX32_IOC_NR(nr)	\
     82 	(((nr) >> _LINUX32_IOC_NRSHIFT) & _LINUX32_IOC_NRMASK)
     83 #define _LINUX32_IOC_SIZE(nr)	\
     84 	(((nr) >> _LINUX32_IOC_SIZESHIFT) & _LINUX32_IOC_SIZEMASK)
     85 
     86 #define LINUX32_IOCGROUP(x)	_LINUX32_IOC_TYPE(x)
     87 
     88 #endif /* !_LINUX32_IOCTL_H */
     89