#ifndef __ASM_SH_SWAB_H #define __ASM_SH_SWAB_H /* * Copyright (C) 1999 Niibe Yutaka * Copyright (C) 2000, 2001 Paolo Alberelli */ #include <linux/compiler.h> #include <linux/types.h> #include <asm-generic/swab.h> static inline __attribute_const__ __u32 __arch_swab32(__u32 x) { __asm__( #ifdef __SH5__ "byterev %1, %0\n\t" "shari %0, 32, %0" #else "swap.b %1, %0\n\t" "swap.w %0, %0\n\t" "swap.b %0, %0" #endif : "=r" (x) : "r" (x)); return x; } #define __arch_swab32 __arch_swab32 static inline __attribute_const__ __u16 __arch_swab16(__u16 x) { __asm__( #ifdef __SH5__ "byterev %1, %0\n\t" "shari %0, 32, %0" #else "swap.b %1, %0" #endif : "=r" (x) : "r" (x)); return x; } #define __arch_swab16 __arch_swab16 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 __arch_swab64 #endif /* __ASM_SH_SWAB_H */