diff options
author | Anton Altaparmakov <aia21@cantab.net> | 2006-01-19 16:39:33 +0000 |
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committer | Anton Altaparmakov <aia21@cantab.net> | 2006-01-19 16:39:33 +0000 |
commit | 944d79559d154c12becde0dab327016cf438f46c (patch) | |
tree | 50c101806f4d3b6585222dda060559eb4f3e005a /include/asm-sh64/ioctl.h | |
parent | d087e4bdd24ebe3ae3d0b265b6573ec901af4b4b (diff) | |
parent | 0f36b018b2e314d45af86449f1a97facb1fbe300 (diff) |
Merge branch 'master' of /usr/src/ntfs-2.6/
Diffstat (limited to 'include/asm-sh64/ioctl.h')
-rw-r--r-- | include/asm-sh64/ioctl.h | 84 |
1 files changed, 1 insertions, 83 deletions
diff --git a/include/asm-sh64/ioctl.h b/include/asm-sh64/ioctl.h index c089a6fb78e..b279fe06dfe 100644 --- a/include/asm-sh64/ioctl.h +++ b/include/asm-sh64/ioctl.h @@ -1,83 +1 @@ -#ifndef __ASM_SH64_IOCTL_H -#define __ASM_SH64_IOCTL_H - -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * include/asm-sh64/ioctl.h - * - * Copyright (C) 2000, 2001 Paolo Alberelli - * - * linux/ioctl.h for Linux by H.H. Bergman. - * - */ - -/* ioctl command encoding: 32 bits total, command in lower 16 bits, - * size of the parameter structure in the lower 14 bits of the - * upper 16 bits. - * Encoding the size of the parameter structure in the ioctl request - * is useful for catching programs compiled with old versions - * and to avoid overwriting user space outside the user buffer area. - * The highest 2 bits are reserved for indicating the ``access mode''. - * NOTE: This limits the max parameter size to 16kB -1 ! - */ - -/* - * The following is for compatibility across the various Linux - * platforms. The i386 ioctl numbering scheme doesn't really enforce - * a type field. De facto, however, the top 8 bits of the lower 16 - * bits are indeed used as a type field, so we might just as well make - * this explicit here. Please be sure to use the decoding macros - * below from now on. - */ -#define _IOC_NRBITS 8 -#define _IOC_TYPEBITS 8 -#define _IOC_SIZEBITS 14 -#define _IOC_DIRBITS 2 - -#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1) -#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1) -#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1) -#define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1) - -#define _IOC_NRSHIFT 0 -#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS) -#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS) -#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS) - -/* - * Direction bits. - */ -#define _IOC_NONE 0U -#define _IOC_WRITE 1U -#define _IOC_READ 2U - -#define _IOC(dir,type,nr,size) \ - (((dir) << _IOC_DIRSHIFT) | \ - ((type) << _IOC_TYPESHIFT) | \ - ((nr) << _IOC_NRSHIFT) | \ - ((size) << _IOC_SIZESHIFT)) - -/* used to create numbers */ -#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0) -#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size)) -#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size)) -#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) - -/* used to decode ioctl numbers.. */ -#define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) -#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK) -#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK) -#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK) - -/* ...and for the drivers/sound files... */ - -#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT) -#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT) -#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT) -#define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT) -#define IOCSIZE_SHIFT (_IOC_SIZESHIFT) - -#endif /* __ASM_SH64_IOCTL_H */ +#include <asm-generic/ioctl.h> |