bc2aa80e18
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
373 lines
8.4 KiB
C
373 lines
8.4 KiB
C
#ifndef _LINUX_BYTEORDER_H
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#define _LINUX_BYTEORDER_H
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#include <linux/types.h>
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#include <linux/swab.h>
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#if defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN)
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# error Fix asm/byteorder.h to define one endianness
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#endif
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#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
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# error Fix asm/byteorder.h to define arch endianness
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#endif
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#ifdef __LITTLE_ENDIAN
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# undef __LITTLE_ENDIAN
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# define __LITTLE_ENDIAN 1234
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#endif
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#ifdef __BIG_ENDIAN
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# undef __BIG_ENDIAN
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# define __BIG_ENDIAN 4321
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#endif
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#if defined(__LITTLE_ENDIAN) && !defined(__LITTLE_ENDIAN_BITFIELD)
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# define __LITTLE_ENDIAN_BITFIELD
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#endif
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#if defined(__BIG_ENDIAN) && !defined(__BIG_ENDIAN_BITFIELD)
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# define __BIG_ENDIAN_BITFIELD
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#endif
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#ifdef __LITTLE_ENDIAN
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# define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
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# define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
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# define __le64_to_cpu(x) ((__force __u64)(__le64)(x))
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# define __cpu_to_le16(x) ((__force __le16)(__u16)(x))
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# define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
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# define __cpu_to_le64(x) ((__force __le64)(__u64)(x))
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# define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x))
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# define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
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# define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x))
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# define __cpu_to_be16(x) ((__force __be16)__swab16(x))
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# define __cpu_to_be32(x) ((__force __be32)__swab32(x))
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# define __cpu_to_be64(x) ((__force __be64)__swab64(x))
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#endif
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#ifdef __BIG_ENDIAN
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# define __be16_to_cpu(x) ((__force __u16)(__be16)(x))
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# define __be32_to_cpu(x) ((__force __u32)(__be32)(x))
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# define __be64_to_cpu(x) ((__force __u64)(__be64)(x))
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# define __cpu_to_be16(x) ((__force __be16)(__u16)(x))
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# define __cpu_to_be32(x) ((__force __be32)(__u32)(x))
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# define __cpu_to_be64(x) ((__force __be64)(__u64)(x))
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# define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
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# define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
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# define __le64_to_cpu(x) __swab64((__force __u64)(__le64)(x))
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# define __cpu_to_le16(x) ((__force __le16)__swab16(x))
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# define __cpu_to_le32(x) ((__force __le32)__swab32(x))
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# define __cpu_to_le64(x) ((__force __le64)__swab64(x))
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#endif
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/*
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* These helpers could be phased out over time as the base version
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* handles constant folding.
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*/
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#define __constant_htonl(x) __cpu_to_be32(x)
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#define __constant_ntohl(x) __be32_to_cpu(x)
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#define __constant_htons(x) __cpu_to_be16(x)
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#define __constant_ntohs(x) __be16_to_cpu(x)
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#define __constant_le16_to_cpu(x) __le16_to_cpu(x)
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#define __constant_le32_to_cpu(x) __le32_to_cpu(x)
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#define __constant_le64_to_cpu(x) __le64_to_cpu(x)
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#define __constant_be16_to_cpu(x) __be16_to_cpu(x)
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#define __constant_be32_to_cpu(x) __be32_to_cpu(x)
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#define __constant_be64_to_cpu(x) __be64_to_cpu(x)
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#define __constant_cpu_to_le16(x) __cpu_to_le16(x)
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#define __constant_cpu_to_le32(x) __cpu_to_le32(x)
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#define __constant_cpu_to_le64(x) __cpu_to_le64(x)
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#define __constant_cpu_to_be16(x) __cpu_to_be16(x)
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#define __constant_cpu_to_be32(x) __cpu_to_be32(x)
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#define __constant_cpu_to_be64(x) __cpu_to_be64(x)
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static inline void __le16_to_cpus(__u16 *p)
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{
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#ifdef __BIG_ENDIAN
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__swab16s(p);
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#endif
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}
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static inline void __cpu_to_le16s(__u16 *p)
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{
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#ifdef __BIG_ENDIAN
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__swab16s(p);
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#endif
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}
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static inline void __le32_to_cpus(__u32 *p)
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{
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#ifdef __BIG_ENDIAN
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__swab32s(p);
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#endif
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}
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static inline void __cpu_to_le32s(__u32 *p)
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{
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#ifdef __BIG_ENDIAN
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__swab32s(p);
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#endif
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}
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static inline void __le64_to_cpus(__u64 *p)
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{
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#ifdef __BIG_ENDIAN
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__swab64s(p);
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#endif
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}
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static inline void __cpu_to_le64s(__u64 *p)
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{
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#ifdef __BIG_ENDIAN
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__swab64s(p);
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#endif
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}
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static inline void __be16_to_cpus(__u16 *p)
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{
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#ifdef __LITTLE_ENDIAN
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__swab16s(p);
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#endif
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}
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static inline void __cpu_to_be16s(__u16 *p)
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{
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#ifdef __LITTLE_ENDIAN
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__swab16s(p);
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#endif
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}
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static inline void __be32_to_cpus(__u32 *p)
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{
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#ifdef __LITTLE_ENDIAN
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__swab32s(p);
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#endif
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}
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static inline void __cpu_to_be32s(__u32 *p)
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{
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#ifdef __LITTLE_ENDIAN
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__swab32s(p);
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#endif
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}
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static inline void __be64_to_cpus(__u64 *p)
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{
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#ifdef __LITTLE_ENDIAN
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__swab64s(p);
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#endif
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}
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static inline void __cpu_to_be64s(__u64 *p)
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{
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#ifdef __LITTLE_ENDIAN
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__swab64s(p);
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#endif
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}
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static inline __u16 __le16_to_cpup(const __le16 *p)
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{
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#ifdef __LITTLE_ENDIAN
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return (__force __u16)*p;
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#else
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return __swab16p((__force __u16 *)p);
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#endif
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}
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static inline __u32 __le32_to_cpup(const __le32 *p)
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{
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#ifdef __LITTLE_ENDIAN
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return (__force __u32)*p;
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#else
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return __swab32p((__force __u32 *)p);
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#endif
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}
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static inline __u64 __le64_to_cpup(const __le64 *p)
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{
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#ifdef __LITTLE_ENDIAN
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return (__force __u64)*p;
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#else
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return __swab64p((__force __u64 *)p);
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#endif
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}
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static inline __le16 __cpu_to_le16p(const __u16 *p)
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{
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#ifdef __LITTLE_ENDIAN
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return (__force __le16)*p;
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#else
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return (__force __le16)__swab16p(p);
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#endif
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}
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static inline __le32 __cpu_to_le32p(const __u32 *p)
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{
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#ifdef __LITTLE_ENDIAN
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return (__force __le32)*p;
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#else
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return (__force __le32)__swab32p(p);
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#endif
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}
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static inline __le64 __cpu_to_le64p(const __u64 *p)
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{
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#ifdef __LITTLE_ENDIAN
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return (__force __le64)*p;
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#else
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return (__force __le64)__swab64p(p);
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#endif
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}
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static inline __u16 __be16_to_cpup(const __be16 *p)
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{
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#ifdef __BIG_ENDIAN
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return (__force __u16)*p;
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#else
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return __swab16p((__force __u16 *)p);
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#endif
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}
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static inline __u32 __be32_to_cpup(const __be32 *p)
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{
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#ifdef __BIG_ENDIAN
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return (__force __u32)*p;
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#else
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return __swab32p((__force __u32 *)p);
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#endif
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}
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static inline __u64 __be64_to_cpup(const __be64 *p)
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{
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#ifdef __BIG_ENDIAN
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return (__force __u64)*p;
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#else
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return __swab64p((__force __u64 *)p);
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#endif
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}
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static inline __be16 __cpu_to_be16p(const __u16 *p)
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{
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#ifdef __BIG_ENDIAN
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return (__force __be16)*p;
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#else
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return (__force __be16)__swab16p(p);
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#endif
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}
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static inline __be32 __cpu_to_be32p(const __u32 *p)
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{
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#ifdef __BIG_ENDIAN
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return (__force __be32)*p;
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#else
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return (__force __be32)__swab32p(p);
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#endif
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}
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static inline __be64 __cpu_to_be64p(const __u64 *p)
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{
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#ifdef __BIG_ENDIAN
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return (__force __be64)*p;
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#else
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return (__force __be64)__swab64p(p);
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#endif
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}
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#ifdef __KERNEL__
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# define le16_to_cpu __le16_to_cpu
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# define le32_to_cpu __le32_to_cpu
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# define le64_to_cpu __le64_to_cpu
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# define be16_to_cpu __be16_to_cpu
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# define be32_to_cpu __be32_to_cpu
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# define be64_to_cpu __be64_to_cpu
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# define cpu_to_le16 __cpu_to_le16
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# define cpu_to_le32 __cpu_to_le32
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# define cpu_to_le64 __cpu_to_le64
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# define cpu_to_be16 __cpu_to_be16
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# define cpu_to_be32 __cpu_to_be32
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# define cpu_to_be64 __cpu_to_be64
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# define le16_to_cpup __le16_to_cpup
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# define le32_to_cpup __le32_to_cpup
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# define le64_to_cpup __le64_to_cpup
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# define be16_to_cpup __be16_to_cpup
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# define be32_to_cpup __be32_to_cpup
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# define be64_to_cpup __be64_to_cpup
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# define cpu_to_le16p __cpu_to_le16p
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# define cpu_to_le32p __cpu_to_le32p
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# define cpu_to_le64p __cpu_to_le64p
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# define cpu_to_be16p __cpu_to_be16p
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# define cpu_to_be32p __cpu_to_be32p
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# define cpu_to_be64p __cpu_to_be64p
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# define le16_to_cpus __le16_to_cpus
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# define le32_to_cpus __le32_to_cpus
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# define le64_to_cpus __le64_to_cpus
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# define be16_to_cpus __be16_to_cpus
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# define be32_to_cpus __be32_to_cpus
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# define be64_to_cpus __be64_to_cpus
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# define cpu_to_le16s __cpu_to_le16s
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# define cpu_to_le32s __cpu_to_le32s
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# define cpu_to_le64s __cpu_to_le64s
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# define cpu_to_be16s __cpu_to_be16s
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# define cpu_to_be32s __cpu_to_be32s
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# define cpu_to_be64s __cpu_to_be64s
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/*
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* They have to be macros in order to do the constant folding
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* correctly - if the argument passed into a inline function
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* it is no longer constant according to gcc..
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*/
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# undef ntohl
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# undef ntohs
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# undef htonl
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# undef htons
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# define ___htonl(x) __cpu_to_be32(x)
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# define ___htons(x) __cpu_to_be16(x)
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# define ___ntohl(x) __be32_to_cpu(x)
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# define ___ntohs(x) __be16_to_cpu(x)
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# define htonl(x) ___htonl(x)
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# define ntohl(x) ___ntohl(x)
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# define htons(x) ___htons(x)
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# define ntohs(x) ___ntohs(x)
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static inline void le16_add_cpu(__le16 *var, u16 val)
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{
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*var = cpu_to_le16(le16_to_cpup(var) + val);
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}
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static inline void le32_add_cpu(__le32 *var, u32 val)
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{
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*var = cpu_to_le32(le32_to_cpup(var) + val);
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}
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static inline void le64_add_cpu(__le64 *var, u64 val)
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{
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*var = cpu_to_le64(le64_to_cpup(var) + val);
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}
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static inline void be16_add_cpu(__be16 *var, u16 val)
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{
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*var = cpu_to_be16(be16_to_cpup(var) + val);
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}
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static inline void be32_add_cpu(__be32 *var, u32 val)
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{
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*var = cpu_to_be32(be32_to_cpup(var) + val);
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}
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static inline void be64_add_cpu(__be64 *var, u64 val)
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{
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*var = cpu_to_be64(be64_to_cpup(var) + val);
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}
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#endif /* __KERNEL__ */
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#endif /* _LINUX_BYTEORDER_H */
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