diff options
| author | Josh Boyer <jwboyer@gmail.com> | 2006-06-21 08:29:56 -0500 |
|---|---|---|
| committer | Josh Boyer <jwboyer@gmail.com> | 2006-06-21 08:29:56 -0500 |
| commit | 3878d8681796c49eb72a334048fbdccd3d321284 (patch) | |
| tree | c98ccca4e0071ed5bccaf2f5a2367056bb23d114 /include | |
| parent | 8e181c4a907c3c97c61a1dfc4f5c2c58793132f5 (diff) | |
Added 64-bit swapping functions
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/mtd_swab.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/mtd_swab.h b/include/mtd_swab.h index 5c76ed5..c3340a6 100644 --- a/include/mtd_swab.h +++ b/include/mtd_swab.h @@ -14,20 +14,38 @@ (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | \ (((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24) )) +#define swab64(x) \ + ((uint64_t)( \ + (((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) | \ + (((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) | \ + (((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \ + (((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) << 8) | \ + (((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \ + (((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \ + (((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \ + (((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56) )) + + #if __BYTE_ORDER == __BIG_ENDIAN #define cpu_to_le16(x) ({ uint16_t _x = x; swab16(_x); }) #define cpu_to_le32(x) ({ uint32_t _x = x; swab32(_x); }) +#define cpu_to_le64(x) ({ uint64_t _x = x; swab64(_x); }) #define cpu_to_be16(x) (x) #define cpu_to_be32(x) (x) +#define cpu_to_be64(x) (x) #else #define cpu_to_le16(x) (x) #define cpu_to_le32(x) (x) +#define cpu_to_le64(x) (x) #define cpu_to_be16(x) ({ uint16_t _x = x; swab16(_x); }) #define cpu_to_be32(x) ({ uint32_t _x = x; swab32(_x); }) +#define cpu_to_be64(x) ({ uint64_t _x = x; swab64(_x); }) #endif #define le16_to_cpu(x) cpu_to_le16(x) #define be16_to_cpu(x) cpu_to_be16(x) #define le32_to_cpu(x) cpu_to_le32(x) #define be32_to_cpu(x) cpu_to_be32(x) +#define le64_to_cpu(x) cpu_to_le64(x) +#define be64_to_cpu(x) cpu_to_be64(x) #endif |