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
  33 static inline s16 sle16_to_cpu(sle16 x)
  34 {
  35         return le16_to_cpu((__force le16)x);
  36 }
  37
  38 static inline s32 sle32_to_cpu(sle32 x)
  39 {
  40         return le32_to_cpu((__force le32)x);
  41 }
  42
  43 static inline s64 sle64_to_cpu(sle64 x)
  44 {
  45         return le64_to_cpu((__force le64)x);
  46 }
  47
  48 static inline s16 sle16_to_cpup(sle16 *x)
  49 {
  50         return le16_to_cpu(*(__force le16*)x);
  51 }
  52
  53 static inline s32 sle32_to_cpup(sle32 *x)
  54 {
  55         return le32_to_cpu(*(__force le32*)x);
  56 }
  57
  58 static inline s64 sle64_to_cpup(sle64 *x)
  59 {
  60         return le64_to_cpu(*(__force le64*)x);
  61 }
  62
  63 static inline sle16 cpu_to_sle16(s16 x)
  64 {
  65         return (__force sle16)cpu_to_le16(x);
  66 }
  67
  68 static inline sle32 cpu_to_sle32(s32 x)
  69 {
  70         return (__force sle32)cpu_to_le32(x);
  71 }
  72
  73 static inline sle64 cpu_to_sle64(s64 x)
  74 {
  75         return (__force sle64)cpu_to_le64(x);
  76 }
  77
  78 static inline sle16 cpu_to_sle16p(s16 *x)
  79 {
  80         return (__force sle16)cpu_to_le16(*x);
  81 }
  82
  83 static inline sle32 cpu_to_sle32p(s32 *x)
  84 {
  85         return (__force sle32)cpu_to_le32(*x);
  86 }
  87
  88 static inline sle64 cpu_to_sle64p(s64 *x)
  89 {
  90         return (__force sle64)cpu_to_le64(*x);
  91 }
  92
  93 #endif /* _LINUX_NTFS_ENDIAN_H */