LXR linux/fs/ntfs/endian.h

   1/*
   2 * endian.h - Defines for endianness handling in NTFS Linux kernel driver.
   3 *            Part of the Linux-NTFS project.
   4 *
   5 * Copyright (c) 2001-2004 Anton Altaparmakov
   6 *
   7 * This program/include file is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License as published
   9 * by the Free Software Foundation; either version 2 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program/include file is distributed in the hope that it will be
  13 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program (in the main directory of the Linux-NTFS
  19 * distribution in the file COPYING); if not, write to the Free Software
  20 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21 */
  22
  23#ifndef _LINUX_NTFS_ENDIAN_H
  24#define _LINUX_NTFS_ENDIAN_H
  25
  26#include <asm/byteorder.h>
  27#include "types.h"
  28
  29/*
  30 * Signed endianness conversion functions.
  31 */
  32
  33static inline s16 sle16_to_cpu(sle16 x)
  34{
  35        return le16_to_cpu((__force le16)x);
  36}
  37
  38static inline s32 sle32_to_cpu(sle32 x)
  39{
  40        return le32_to_cpu((__force le32)x);
  41}
  42
  43static inline s64 sle64_to_cpu(sle64 x)
  44{
  45        return le64_to_cpu((__force le64)x);
  46}
  47
  48static inline s16 sle16_to_cpup(sle16 *x)
  49{
  50        return le16_to_cpu(*(__force le16*)x);
  51}
  52
  53static inline s32 sle32_to_cpup(sle32 *x)
  54{
  55        return le32_to_cpu(*(__force le32*)x);
  56}
  57
  58static inline s64 sle64_to_cpup(sle64 *x)
  59{
  60        return le64_to_cpu(*(__force le64*)x);
  61}
  62
  63static inline sle16 cpu_to_sle16(s16 x)
  64{
  65        return (__force sle16)cpu_to_le16(x);
  66}
  67
  68static inline sle32 cpu_to_sle32(s32 x)
  69{
  70        return (__force sle32)cpu_to_le32(x);
  71}
  72
  73static inline sle64 cpu_to_sle64(s64 x)
  74{
  75        return (__force sle64)cpu_to_le64(x);
  76}
  77
  78static inline sle16 cpu_to_sle16p(s16 *x)
  79{
  80        return (__force sle16)cpu_to_le16(*x);
  81}
  82
  83static inline sle32 cpu_to_sle32p(s32 *x)
  84{
  85        return (__force sle32)cpu_to_le32(*x);
  86}
  87
  88static inline sle64 cpu_to_sle64p(s64 *x)
  89{
  90        return (__force sle64)cpu_to_le64(*x);
  91}
  92
  93#endif /* _LINUX_NTFS_ENDIAN_H */
  94