LXR linux/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
  21static 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
  30static 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
  40static 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
  56static inline __u16 __arch__swab16(__u16 x)
  57{
  58        return ___swab16(x);
  59}
  60
  61#endif
  62
  63#ifndef __arch__swab32
  64static inline __u32 __arch__swab32(__u32 x)
  65{
  66        __u32 __tmp = (x) ;
  67        return ___swab32(__tmp);
  68}
  69#endif
  70
  71#ifndef __arch__swab64
  72
  73static 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
  86static inline const __u16 __fswab16(__u16 x)
  87{
  88        return __arch__swab16(x);
  89}
  90static 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
 107