/* tag: byteorder prototypes * * Copyright (C) 2004 Stefan Reinauer * * see the file "COPYING" for further information about * the copyright and warranty status of this work. */ #ifndef __BYTEORDER_H #define __BYTEORDER_H #define __bswap32(x) \ ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) #define __bswap16(x) ((((x) & 0xff00) >> 8) | (((x) & 0x00ff) << 8)) #define __bswap64(x) ( (__bswap32( (x) >> 32)) | \ (__bswap32((x) & 0xffffffff) << 32) ) #ifdef CONFIG_LITTLE_ENDIAN #define __cpu_to_le64(x) ((u64) (x)) #define __le64_to_cpu(x) ((u64) (x)) #define __cpu_to_le32(x) ((u32) (x)) #define __le32_to_cpu(x) ((u32) (x)) #define __cpu_to_le16(x) ((u16) (x)) #define __le16_to_cpu(x) ((u16) (x)) #define __cpu_to_be64(x) (__bswap64((u64) (x))) #define __be64_to_cpu(x) (__bswap64((u64) (x))) #define __cpu_to_be32(x) (__bswap32((u32) (x))) #define __be32_to_cpu(x) (__bswap32((u32) (x))) #define __cpu_to_be16(x) (__bswap16((u16) (x))) #define __be16_to_cpu(x) (__bswap16((u16) (x))) #endif #ifdef CONFIG_BIG_ENDIAN #define __cpu_to_le64(x) (__bswap64((u64) (x))) #define __le64_to_cpu(x) (__bswap64((u64) (x))) #define __cpu_to_le32(x) (__bswap32((u32) (x))) #define __le32_to_cpu(x) (__bswap32((u32) (x))) #define __cpu_to_le16(x) (__bswap16((u16) (x))) #define __le16_to_cpu(x) (__bswap16((u16) (x))) #define __cpu_to_be64(x) ((u64) (x)) #define __be64_to_cpu(x) ((u64) (x)) #define __cpu_to_be32(x) ((u32) (x)) #define __be32_to_cpu(x) ((u32) (x)) #define __cpu_to_be16(x) ((u16) (x)) #define __be16_to_cpu(x) ((u16) (x)) #endif #if BITS==32 #define __becell_to_cpu(x) (__be32_to_cpu(x)) #define __lecell_to_cpu(x) (__le32_to_cpu(x)) #define __cpu_to_becell(x) (__cpu_to_be32(x)) #define __cpu_to_lecell(x) (__cpu_to_le32(x)) #else #define __becell_to_cpu(x) (__be64_to_cpu(x)) #define __lecell_to_cpu(x) (__le64_to_cpu(x)) #define __cpu_to_becell(x) (__cpu_to_be64(x)) #define __cpu_to_lecell(x) (__cpu_to_le64(x)) #endif #endif