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- #ifndef _LINUX_BYTEORDER_H
- #define _LINUX_BYTEORDER_H
-
- #include <linux/types.h>
- #include <linux/swab.h>
-
- #if defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN)
- # error Fix asm/byteorder.h to define one endianness
- #endif
-
- #if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
- # error Fix asm/byteorder.h to define arch endianness
- #endif
-
- #ifdef __LITTLE_ENDIAN
- # undef __LITTLE_ENDIAN
- # define __LITTLE_ENDIAN 1234
- #endif
-
- #ifdef __BIG_ENDIAN
- # undef __BIG_ENDIAN
- # define __BIG_ENDIAN 4321
- #endif
-
- #if defined(__LITTLE_ENDIAN) && !defined(__LITTLE_ENDIAN_BITFIELD)
- # define __LITTLE_ENDIAN_BITFIELD
- #endif
-
- #if defined(__BIG_ENDIAN) && !defined(__BIG_ENDIAN_BITFIELD)
- # define __BIG_ENDIAN_BITFIELD
- #endif
-
- #ifdef __LITTLE_ENDIAN
- # define __le16_to_cpu(x) ((__u16)(__le16)(x))
- # define __le32_to_cpu(x) ((__u32)(__le32)(x))
- # define __le64_to_cpu(x) ((__u64)(__le64)(x))
- # define __cpu_to_le16(x) ((__le16)(__u16)(x))
- # define __cpu_to_le32(x) ((__le32)(__u32)(x))
- # define __cpu_to_le64(x) ((__le64)(__u64)(x))
-
- # define __be16_to_cpu(x) __swab16((__u16)(__be16)(x))
- # define __be32_to_cpu(x) __swab32((__u32)(__be32)(x))
- # define __be64_to_cpu(x) __swab64((__u64)(__be64)(x))
- # define __cpu_to_be16(x) ((__be16)__swab16(x))
- # define __cpu_to_be32(x) ((__be32)__swab32(x))
- # define __cpu_to_be64(x) ((__be64)__swab64(x))
- #endif
-
- #ifdef __BIG_ENDIAN
- # define __be16_to_cpu(x) ((__u16)(__be16)(x))
- # define __be32_to_cpu(x) ((__u32)(__be32)(x))
- # define __be64_to_cpu(x) ((__u64)(__be64)(x))
- # define __cpu_to_be16(x) ((__be16)(__u16)(x))
- # define __cpu_to_be32(x) ((__be32)(__u32)(x))
- # define __cpu_to_be64(x) ((__be64)(__u64)(x))
-
- # define __le16_to_cpu(x) __swab16((__u16)(__le16)(x))
- # define __le32_to_cpu(x) __swab32((__u32)(__le32)(x))
- # define __le64_to_cpu(x) __swab64((__u64)(__le64)(x))
- # define __cpu_to_le16(x) ((__le16)__swab16(x))
- # define __cpu_to_le32(x) ((__le32)__swab32(x))
- # define __cpu_to_le64(x) ((__le64)__swab64(x))
- #endif
-
- /*
- * These helpers could be phased out over time as the base version
- * handles constant folding.
- */
- #define __constant_htonl(x) __cpu_to_be32(x)
- #define __constant_ntohl(x) __be32_to_cpu(x)
- #define __constant_htons(x) __cpu_to_be16(x)
- #define __constant_ntohs(x) __be16_to_cpu(x)
-
- #define __constant_le16_to_cpu(x) __le16_to_cpu(x)
- #define __constant_le32_to_cpu(x) __le32_to_cpu(x)
- #define __constant_le64_to_cpu(x) __le64_to_cpu(x)
- #define __constant_be16_to_cpu(x) __be16_to_cpu(x)
- #define __constant_be32_to_cpu(x) __be32_to_cpu(x)
- #define __constant_be64_to_cpu(x) __be64_to_cpu(x)
-
- #define __constant_cpu_to_le16(x) __cpu_to_le16(x)
- #define __constant_cpu_to_le32(x) __cpu_to_le32(x)
- #define __constant_cpu_to_le64(x) __cpu_to_le64(x)
- #define __constant_cpu_to_be16(x) __cpu_to_be16(x)
- #define __constant_cpu_to_be32(x) __cpu_to_be32(x)
- #define __constant_cpu_to_be64(x) __cpu_to_be64(x)
-
- static inline void __le16_to_cpus(__u16 *p)
- {
- #ifdef __BIG_ENDIAN
- __swab16s(p);
- #endif
- }
-
- static inline void __cpu_to_le16s(__u16 *p)
- {
- #ifdef __BIG_ENDIAN
- __swab16s(p);
- #endif
- }
-
- static inline void __le32_to_cpus(__u32 *p)
- {
- #ifdef __BIG_ENDIAN
- __swab32s(p);
- #endif
- }
-
- static inline void __cpu_to_le32s(__u32 *p)
- {
- #ifdef __BIG_ENDIAN
- __swab32s(p);
- #endif
- }
-
- static inline void __le64_to_cpus(__u64 *p)
- {
- #ifdef __BIG_ENDIAN
- __swab64s(p);
- #endif
- }
-
- static inline void __cpu_to_le64s(__u64 *p)
- {
- #ifdef __BIG_ENDIAN
- __swab64s(p);
- #endif
- }
-
- static inline void __be16_to_cpus(__u16 *p)
- {
- #ifdef __LITTLE_ENDIAN
- __swab16s(p);
- #endif
- }
-
- static inline void __cpu_to_be16s(__u16 *p)
- {
- #ifdef __LITTLE_ENDIAN
- __swab16s(p);
- #endif
- }
-
- static inline void __be32_to_cpus(__u32 *p)
- {
- #ifdef __LITTLE_ENDIAN
- __swab32s(p);
- #endif
- }
-
- static inline void __cpu_to_be32s(__u32 *p)
- {
- #ifdef __LITTLE_ENDIAN
- __swab32s(p);
- #endif
- }
-
- static inline void __be64_to_cpus(__u64 *p)
- {
- #ifdef __LITTLE_ENDIAN
- __swab64s(p);
- #endif
- }
-
- static inline void __cpu_to_be64s(__u64 *p)
- {
- #ifdef __LITTLE_ENDIAN
- __swab64s(p);
- #endif
- }
-
- static inline __u16 __le16_to_cpup(const __le16 *p)
- {
- #ifdef __LITTLE_ENDIAN
- return (__u16)*p;
- #else
- return __swab16p((__u16 *)p);
- #endif
- }
-
- static inline __u32 __le32_to_cpup(const __le32 *p)
- {
- #ifdef __LITTLE_ENDIAN
- return (__u32)*p;
- #else
- return __swab32p((__u32 *)p);
- #endif
- }
-
- static inline __u64 __le64_to_cpup(const __le64 *p)
- {
- #ifdef __LITTLE_ENDIAN
- return (__u64)*p;
- #else
- return __swab64p((__u64 *)p);
- #endif
- }
-
- static inline __le16 __cpu_to_le16p(const __u16 *p)
- {
- #ifdef __LITTLE_ENDIAN
- return (__le16)*p;
- #else
- return (__le16)__swab16p(p);
- #endif
- }
-
- static inline __le32 __cpu_to_le32p(const __u32 *p)
- {
- #ifdef __LITTLE_ENDIAN
- return (__le32)*p;
- #else
- return (__le32)__swab32p(p);
- #endif
- }
-
- static inline __le64 __cpu_to_le64p(const __u64 *p)
- {
- #ifdef __LITTLE_ENDIAN
- return (__le64)*p;
- #else
- return (__le64)__swab64p(p);
- #endif
- }
-
- static inline __u16 __be16_to_cpup(const __be16 *p)
- {
- #ifdef __BIG_ENDIAN
- return (__u16)*p;
- #else
- return __swab16p((__u16 *)p);
- #endif
- }
-
- static inline __u32 __be32_to_cpup(const __be32 *p)
- {
- #ifdef __BIG_ENDIAN
- return (__u32)*p;
- #else
- return __swab32p((__u32 *)p);
- #endif
- }
-
- static inline __u64 __be64_to_cpup(const __be64 *p)
- {
- #ifdef __BIG_ENDIAN
- return (__u64)*p;
- #else
- return __swab64p((__u64 *)p);
- #endif
- }
-
- static inline __be16 __cpu_to_be16p(const __u16 *p)
- {
- #ifdef __BIG_ENDIAN
- return (__be16)*p;
- #else
- return (__be16)__swab16p(p);
- #endif
- }
-
- static inline __be32 __cpu_to_be32p(const __u32 *p)
- {
- #ifdef __BIG_ENDIAN
- return (__be32)*p;
- #else
- return (__be32)__swab32p(p);
- #endif
- }
-
- static inline __be64 __cpu_to_be64p(const __u64 *p)
- {
- #ifdef __BIG_ENDIAN
- return (__be64)*p;
- #else
- return (__be64)__swab64p(p);
- #endif
- }
-
- #endif /* _LINUX_BYTEORDER_H */
-