drivers/staging/rtl8712/swab.h

   1 #ifndef _LINUX_BYTEORDER_SWAB_H
   2 #define _LINUX_BYTEORDER_SWAB_H
   3
   4 #ifndef __u16
   5  #define __u16 unsigned short
   6 #endif
   7
   8 #ifndef __u32
   9  #define __u32 unsigned int
  10 #endif
  11
  12 #ifndef __u8
  13  #define __u8 unsigned char
  14 #endif
  15
  16 #ifndef __u64
  17  #define __u64 unsigned long long
  18 #endif
  19
  20
  21 static inline __u16  ___swab16(__u16 x)
  22 {
  23         __u16 __x = x;
  24         return (__u16)(
  25                 (((__u16)(__x) & (__u16)0x00ffU) << 8) |
  26                 (((__u16)(__x) & (__u16)0xff00U) >> 8));
  27
  28 }
  29
  30 static inline __u32  ___swab32(__u32 x)
  31 {
  32         __u32 __x = (x);
  33         return (__u32)(
  34                 (((__u32)(__x) & (__u32)0x000000ffUL) << 24) |
  35                 (((__u32)(__x) & (__u32)0x0000ff00UL) <<  8) |
  36                 (((__u32)(__x) & (__u32)0x00ff0000UL) >>  8) |
  37                 (((__u32)(__x) & (__u32)0xff000000UL) >> 24));
  38 }
  39
  40 static inline __u64  ___swab64(__u64 x)
  41 {
  42         __u64 __x = (x);
  43
  44         return (__u64)( \
  45                 (__u64)(((__u64)(__x) & (__u64)0x00000000000000ffULL) << 56) | \
  46                 (__u64)(((__u64)(__x) & (__u64)0x000000000000ff00ULL) << 40) | \
  47                 (__u64)(((__u64)(__x) & (__u64)0x0000000000ff0000ULL) << 24) | \
  48                 (__u64)(((__u64)(__x) & (__u64)0x00000000ff000000ULL) <<  8) | \
  49                 (__u64)(((__u64)(__x) & (__u64)0x000000ff00000000ULL) >>  8) | \
  50                 (__u64)(((__u64)(__x) & (__u64)0x0000ff0000000000ULL) >> 24) | \
  51                 (__u64)(((__u64)(__x) & (__u64)0x00ff000000000000ULL) >> 40) | \
  52                 (__u64)(((__u64)(__x) & (__u64)0xff00000000000000ULL) >> 56));
  53 }
  54
  55 #ifndef __arch__swab16
  56 static inline __u16 __arch__swab16(__u16 x)
  57 {
  58         return ___swab16(x);
  59 }
  60
  61 #endif
  62
  63 #ifndef __arch__swab32
  64 static inline __u32 __arch__swab32(__u32 x)
  65 {
  66         __u32 __tmp = (x) ;
  67         return ___swab32(__tmp);
  68 }
  69 #endif
  70
  71 #ifndef __arch__swab64
  72
  73 static inline __u64 __arch__swab64(__u64 x)
  74 {
  75         __u64 __tmp = (x) ;
  76         return ___swab64(__tmp);
  77 }
  78
  79
  80 #endif
  81
  82 #define __swab16(x) __fswab16(x)
  83 #define __swab32(x) __fswab32(x)
  84 #define __swab64(x) __fswab64(x)
  85
  86 static inline const __u16 __fswab16(__u16 x)
  87 {
  88         return __arch__swab16(x);
  89 }
  90 static inline const __u32 __fswab32(__u32 x)
  91 {
  92         return __arch__swab32(x);
  93 }
  94
  95 #define swab16 __swab16
  96 #define swab32 __swab32
  97 #define swab64 __swab64
  98 #define swab16p __swab16p
  99 #define swab32p __swab32p
 100 #define swab64p __swab64p
 101 #define swab16s __swab16s
 102 #define swab32s __swab32s
 103 #define swab64s __swab64s
 104
 105 #endif /* _LINUX_BYTEORDER_SWAB_H */
 106