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      1 /*	$NetBSD: linux_ioctl.h,v 1.30 2024/10/01 16:41:29 riastradh 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  *
     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 _LINUX_IOCTL_H
     33 #define _LINUX_IOCTL_H
     34 
     35 struct linux_sys_ioctl_args;
     36 
     37 #ifdef _KERNEL
     38 __BEGIN_DECLS
     39 int linux_machdepioctl(struct lwp *, const struct linux_sys_ioctl_args *, register_t *);
     40 int linux_ioctl_cdrom(struct lwp *, const struct linux_sys_ioctl_args *,
     41     register_t *);
     42 int linux_ioctl_termios(struct lwp *, const struct linux_sys_ioctl_args *,
     43     register_t *);
     44 int linux_ioctl_timerfd(struct lwp *, const struct linux_sys_ioctl_args *,
     45     register_t *);
     46 int linux_ioctl_socket(struct lwp *, const struct linux_sys_ioctl_args *,
     47     register_t *);
     48 int linux_ioctl_hdio(struct lwp *, const struct linux_sys_ioctl_args *,
     49     register_t *);
     50 int linux_ioctl_fdio(struct lwp *, const struct linux_sys_ioctl_args *uap,
     51                  register_t *retval);
     52 int linux_ioctl_blkio(struct lwp *, const struct linux_sys_ioctl_args *uap,
     53                  register_t *retval);
     54 int linux_ioctl_sg(struct lwp *, const struct linux_sys_ioctl_args *uap,
     55                  register_t *retval);
     56 int linux_ioctl_mtio(struct lwp *, const struct linux_sys_ioctl_args *uap,
     57                  register_t *retval);
     58 __END_DECLS
     59 #endif	/* !_KERNEL */
     60 
     61 #if defined(__i386__)
     62 #include <compat/linux/arch/i386/linux_ioctl.h>
     63 #elif defined(__m68k__)
     64 #include <compat/linux/arch/m68k/linux_ioctl.h>
     65 #elif defined(__alpha__)
     66 #include <compat/linux/arch/alpha/linux_ioctl.h>
     67 #elif defined(__powerpc__)
     68 #include <compat/linux/arch/powerpc/linux_ioctl.h>
     69 #elif defined(__mips__)
     70 #include <compat/linux/arch/mips/linux_ioctl.h>
     71 #elif defined(__aarch64__)
     72 #include <compat/linux/arch/arm/linux_ioctl.h>
     73 #elif defined(__arm__)
     74 #include <compat/linux/arch/arm/linux_ioctl.h>
     75 #elif defined(__amd64__)
     76 #include <compat/linux/arch/amd64/linux_ioctl.h>
     77 #else
     78 #error Undefined linux_ioctl.h machine type.
     79 #endif
     80 
     81 #define	_LINUX_IOC_NRMASK	((1 << _LINUX_IOC_NRBITS) - 1)
     82 #define	_LINUX_IOC_TYPEMASK	((1 << _LINUX_IOC_TYPEBITS) - 1)
     83 #define	_LINUX_IOC_SIZEMASK	((1 << _LINUX_IOC_SIZEBITS) - 1)
     84 #define _LINUX_IOC_DIRMASK	((1 << _LINUX_IOC_DIRBITS) - 1)
     85 
     86 #define	_LINUX_IOC_TYPESHIFT	(_LINUX_IOC_NRSHIFT + _LINUX_IOC_NRBITS)
     87 #define	_LINUX_IOC_SIZESHIFT	(_LINUX_IOC_TYPESHIFT + _LINUX_IOC_TYPEBITS)
     88 #define	_LINUX_IOC_DIRSHIFT	(_LINUX_IOC_SIZESHIFT + _LINUX_IOC_SIZEBITS)
     89 
     90 #define	_LINUX_IOC(dir,type,nr,size)		\
     91 	(((nr)   << _LINUX_IOC_NRSHIFT) |	\
     92 	 ((type) << _LINUX_IOC_TYPESHIFT) |	\
     93 	 ((size) << _LINUX_IOC_SIZESHIFT) |	\
     94 	 ((dir)  << _LINUX_IOC_DIRSHIFT))
     95 
     96 #define _LINUX_IO(type,nr)		\
     97 	_LINUX_IOC(_LINUX_IOC_NONE,(type),(nr),0)
     98 #define	_LINUX_IOR(type,nr,size)	\
     99 	_LINUX_IOC(_LINUX_IOC_READ,(type),(nr),sizeof(size))
    100 #define	_LINUX_IOW(type,nr,size)	\
    101 	_LINUX_IOC(_LINUX_IOC_WRITE,(type),(nr),sizeof(size))
    102 #define	_LINUX_IOWR(type,nr,size)	\
    103 	_LINUX_IOC(_LINUX_IOC_READ|_LINUX_IOC_WRITE,(type),(nr),sizeof(size))
    104 
    105 #define _LINUX_IOC_DIR(nr)	\
    106 	(((nr) >> _LINUX_IOC_DIRSHIFT) & _LINUX_IOC_DIRMASK)
    107 #define _LINUX_IOC_TYPE(nr)	\
    108 	(((nr) >> _LINUX_IOC_TYPESHIFT) & _LINUX_IOC_TYPEMASK)
    109 #define _LINUX_IOC_NR(nr)	\
    110 	(((nr) >> _LINUX_IOC_NRSHIFT) & _LINUX_IOC_NRMASK)
    111 #define _LINUX_IOC_SIZE(nr)	\
    112 	(((nr) >> _LINUX_IOC_SIZESHIFT) & _LINUX_IOC_SIZEMASK)
    113 
    114 #define LINUX_IOCGROUP(x)	_LINUX_IOC_TYPE(x)
    115 
    116 #endif /* !_LINUX_IOCTL_H */
    117