drivers/staging/rtl8712/swab.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * Modifications for inclusion into the Linux staging tree are
  19  * Copyright(c) 2010 Larry Finger. All rights reserved.
  20  *
  21  * Contact information:
  22  * WLAN FAE <wlanfae@realtek.com>
  23  * Larry Finger <Larry.Finger@lwfinger.net>
  24  *
  25  ******************************************************************************/
  26 #ifndef _LINUX_BYTEORDER_SWAB_H
  27 #define _LINUX_BYTEORDER_SWAB_H
  28
  29 #ifndef __u16
  30  #define __u16 unsigned short
  31 #endif
  32
  33 #ifndef __u32
  34  #define __u32 unsigned int
  35 #endif
  36
  37 #ifndef __u8
  38  #define __u8 unsigned char
  39 #endif
  40
  41 #ifndef __u64
  42  #define __u64 unsigned long long
  43 #endif
  44
  45
  46 static inline __u16  ___swab16(__u16 x)
  47 {
  48         __u16 __x = x;
  49         return (__u16)(
  50                 (((__u16)(__x) & (__u16)0x00ffU) << 8) |
  51                 (((__u16)(__x) & (__u16)0xff00U) >> 8));
  52
  53 }
  54
  55 static inline __u32  ___swab32(__u32 x)
  56 {
  57         __u32 __x = (x);
  58         return (__u32)(
  59                 (((__u32)(__x) & (__u32)0x000000ffUL) << 24) |
  60                 (((__u32)(__x) & (__u32)0x0000ff00UL) <<  8) |
  61                 (((__u32)(__x) & (__u32)0x00ff0000UL) >>  8) |
  62                 (((__u32)(__x) & (__u32)0xff000000UL) >> 24));
  63 }
  64
  65 static inline __u64  ___swab64(__u64 x)
  66 {
  67         __u64 __x = (x);
  68
  69         return (__u64)( \
  70                 (__u64)(((__u64)(__x) & (__u64)0x00000000000000ffULL) << 56) | \
  71                 (__u64)(((__u64)(__x) & (__u64)0x000000000000ff00ULL) << 40) | \
  72                 (__u64)(((__u64)(__x) & (__u64)0x0000000000ff0000ULL) << 24) | \
  73                 (__u64)(((__u64)(__x) & (__u64)0x00000000ff000000ULL) <<  8) | \
  74                 (__u64)(((__u64)(__x) & (__u64)0x000000ff00000000ULL) >>  8) | \
  75                 (__u64)(((__u64)(__x) & (__u64)0x0000ff0000000000ULL) >> 24) | \
  76                 (__u64)(((__u64)(__x) & (__u64)0x00ff000000000000ULL) >> 40) | \
  77                 (__u64)(((__u64)(__x) & (__u64)0xff00000000000000ULL) >> 56));
  78 }
  79
  80 #ifndef __arch__swab16
  81 static inline __u16 __arch__swab16(__u16 x)
  82 {
  83         return ___swab16(x);
  84 }
  85
  86 #endif
  87
  88 #ifndef __arch__swab32
  89 static inline __u32 __arch__swab32(__u32 x)
  90 {
  91         __u32 __tmp = (x) ;
  92         return ___swab32(__tmp);
  93 }
  94 #endif
  95
  96 #ifndef __arch__swab64
  97
  98 static inline __u64 __arch__swab64(__u64 x)
  99 {
 100         __u64 __tmp = (x) ;
 101         return ___swab64(__tmp);
 102 }
 103
 104
 105 #endif
 106
 107 #define __swab16(x) __fswab16(x)
 108 #define __swab32(x) __fswab32(x)
 109 #define __swab64(x) __fswab64(x)
 110
 111 static inline const __u16 __fswab16(__u16 x)
 112 {
 113         return __arch__swab16(x);
 114 }
 115 static inline const __u32 __fswab32(__u32 x)
 116 {
 117         return __arch__swab32(x);
 118 }
 119
 120 #define swab16 __swab16
 121 #define swab32 __swab32
 122 #define swab64 __swab64
 123 #define swab16p __swab16p
 124 #define swab32p __swab32p
 125 #define swab64p __swab64p
 126 #define swab16s __swab16s
 127 #define swab32s __swab32s
 128 #define swab64s __swab64s
 129
 130 #endif /* _LINUX_BYTEORDER_SWAB_H */
 131