#ifndef __ASM_SH_BYTEORDER_H #define __ASM_SH_BYTEORDER_H /* * Copyright (C) 1999 Niibe Yutaka * Copyright (C) 2000, 2001 Paolo Alberelli */ #include <linux/compiler.h> #include <linux/types.h> static inline __attribute_const__ __u32 ___arch__swab32(__u32 x) { __asm__( #ifdef __SH5__ "byterev %0, %0\n\t" "shari %0, 32, %0" #else "swap.b %0, %0\n\t" "swap.w %0, %0\n\t" "swap.b %0, %0" #endif : "=r" (x) : "0" (x)); return x; } static inline __attribute_const__ __u16 ___arch__swab16(__u16 x) { __asm__( #ifdef __SH5__ "byterev %0, %0\n\t" "shari %0, 32, %0" #else "swap.b %0, %0" #endif : "=r" (x) : "0" (x)); return x; } static inline __u64 ___arch__swab64(__u64 val) { union { struct { __u32 a,b; } s; __u64 u; } v, w; v.u = val; w.s.b = ___arch__swab32(v.s.a); w.s.a = ___arch__swab32(v.s.b); return w.u; } #define __arch__swab64(x) ___arch__swab64(x) #define __arch__swab32(x) ___arch__swab32(x) #define __arch__swab16(x) ___arch__swab16(x) #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) # define __BYTEORDER_HAS_U64__ # define __SWAB_64_THRU_32__ #endif #ifdef __LITTLE_ENDIAN__ #include <linux/byteorder/little_endian.h> #else #include <linux/byteorder/big_endian.h> #endif #endif /* __ASM_SH_BYTEORDER_H */