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 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
  28 /*
  29  * Signed endianness conversion defines.
  30  */
  31 #define sle16_to_cpu(x)         ((s16)__le16_to_cpu((s16)(x)))
  32 #define sle32_to_cpu(x)         ((s32)__le32_to_cpu((s32)(x)))
  33 #define sle64_to_cpu(x)         ((s64)__le64_to_cpu((s64)(x)))
  34
  35 #define sle16_to_cpup(x)        ((s16)__le16_to_cpu(*(s16*)(x)))
  36 #define sle32_to_cpup(x)        ((s32)__le32_to_cpu(*(s32*)(x)))
  37 #define sle64_to_cpup(x)        ((s64)__le64_to_cpu(*(s64*)(x)))
  38
  39 #define cpu_to_sle16(x)         ((s16)__cpu_to_le16((s16)(x)))
  40 #define cpu_to_sle32(x)         ((s32)__cpu_to_le32((s32)(x)))
  41 #define cpu_to_sle64(x)         ((s64)__cpu_to_le64((s64)(x)))
  42
  43 #define cpu_to_sle16p(x)        ((s16)__cpu_to_le16(*(s16*)(x)))
  44 #define cpu_to_sle32p(x)        ((s32)__cpu_to_le32(*(s32*)(x)))
  45 #define cpu_to_sle64p(x)        ((s64)__cpu_to_le64(*(s64*)(x)))
  46
  47 #endif /* _LINUX_NTFS_ENDIAN_H */
  48