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linux_ioctl.h revision 1.13 
      1 /*	$NetBSD: linux_ioctl.h,v 1.13 2001/01/10 02:28:38 fvdl Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1995, 1998 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 and Eric Haszlakiewicz.
      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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _LINUX_IOCTL_H
     40 #define _LINUX_IOCTL_H
     41 
     42 struct linux_sys_ioctl_args;
     43 
     44 #ifdef _KERNEL
     45 __BEGIN_DECLS
     46 int linux_machdepioctl __P((struct proc *, void *, register_t *));
     47 int linux_ioctl_cdrom __P((struct proc *, struct linux_sys_ioctl_args *,
     48     register_t *));
     49 int linux_ioctl_termios __P((struct proc *, struct linux_sys_ioctl_args *,
     50     register_t *));
     51 int linux_ioctl_socket __P((struct proc *, struct linux_sys_ioctl_args *,
     52     register_t *));
     53 int linux_ioctl_hdio __P((struct proc *, struct linux_sys_ioctl_args *,
     54     register_t *));
     55 int linux_ioctl_fdio __P((struct proc *p, struct linux_sys_ioctl_args *uap,
     56                  register_t *retval));
     57 int linux_ioctl_blkio __P((struct proc *p, struct linux_sys_ioctl_args *uap,
     58                  register_t *retval));
     59 __END_DECLS
     60 #endif	/* !_KERNEL */
     61 
     62 #if defined(__i386__)
     63 #include <compat/linux/arch/i386/linux_ioctl.h>
     64 #elif defined(__m68k__)
     65 #include <compat/linux/arch/m68k/linux_ioctl.h>
     66 #elif defined(__alpha__)
     67 #include <compat/linux/arch/alpha/linux_ioctl.h>
     68 #else
     69 #error Undefined linux_ioctl.h machine type.
     70 #endif
     71 
     72 #define	_LINUX_IOC_NRMASK	((1 << _LINUX_IOC_NRBITS) - 1)
     73 #define	_LINUX_IOC_TYPEMASK	((1 << _LINUX_IOC_TYPEBITS) - 1)
     74 #define	_LINUX_IOC_SIZEMAEK	((1 << _LINUX_IOC_SIZEBITS) - 1)
     75 #define _LINUX_IOC_DIRMASK	((1 << _LINUX_IOC_DIRBITS) - 1)
     76 
     77 #define	_LINUX_IOC_TYPESHIFT	(_LINUX_IOC_NRSHIFT + _LINUX_IOC_NRBITS)
     78 #define	_LINUX_IOC_SIZESHIFT	(_LINUX_IOC_TYPESHIFT + _LINUX_IOC_TYPEBITS)
     79 #define	_LINUX_IOC_DIRSHIFT	(_LINUX_IOC_SIZESHIFT + _LINUX_IOC_SIZEBITS)
     80 
     81 #define	_LINUX_IOC(dir,type,nr,size)		\
     82 	(((nr)   << _LINUX_IOC_NRSHIFT) |	\
     83 	 ((type) << _LINUX_IOC_TYPESHIFT) |	\
     84 	 ((size) << _LINUX_IOC_SIZESHIFT) |	\
     85 	 ((dir)  << _LINUX_IOC_DIRSHIFT))
     86 
     87 #define _LINUX_IO(type,nr)		\
     88 	_LINUX_IOC(_LINUX_IOC_NONE,(type),(nr),0)
     89 #define	_LINUX_IOR(type,nr,size)	\
     90 	_LINUX_IOC(_LINUX_IOC_READ,(type),(nr),sizeof(size))
     91 #define	_LINUX_IOW(type,nr,size)	\
     92 	_LINUX_IOC(_LINUX_IOC_WRITE,(type),(nr),sizeof(size))
     93 #define	_LINUX_IOWR(type,nr,size)	\
     94 	_LINUX_IOC(_LINUX_IOC_READ|_LINUX_IOC_WRITE,(type),(nr),sizeof(size))
     95 
     96 #define _LINUX_IOC_DIR(nr)	\
     97 	(((nr) >> _LINUX_IOC_DIRSHIFT) & _LINUX_IOC_DIRMASK)
     98 #define _LINUX_IOC_TYPE(nr)	\
     99 	(((nr) >> _LINUX_IOC_TYPESHIFT) & _LINUX_IOC_TYPEMASK)
    100 #define _LINUX_IOC_NR(nr)	\
    101 	(((nr) >> _LINUX_IOC_NRSHIFT) & _LINUX_IOC_NRMASK)
    102 #define _LINUX_IOC_SIZE(nr)	\
    103 	(((nr) >> _LINUX_IOC_SIZESHIFT) & _LINUX_IOC_SIZEMASK)
    104 
    105 #define LINUX_IOCGROUP(x)	_LINUX_IOC_TYPE(x)
    106 
    107 #endif /* !_LINUX_IOCTL_H */
    108