/* * Copyright 2009 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #ifndef _UAPI_BLACKFIN_SWAB_H #define _UAPI_BLACKFIN_SWAB_H #include <linux/types.h> #include <asm-generic/swab.h> #ifdef __GNUC__ static __inline__ __attribute_const__ __u32 __arch_swahb32(__u32 xx) { __u32 tmp; __asm__("%1 = %0 >> 8 (V);\n\t" "%0 = %0 << 8 (V);\n\t" "%0 = %0 | %1;\n\t" : "+d"(xx), "=&d"(tmp)); return xx; } #define __arch_swahb32 __arch_swahb32 static __inline__ __attribute_const__ __u32 __arch_swahw32(__u32 xx) { __u32 rv; __asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx)); return rv; } #define __arch_swahw32 __arch_swahw32 static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 xx) { return __arch_swahb32(__arch_swahw32(xx)); } #define __arch_swab32 __arch_swab32 static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 xx) { __u32 xw = xx; __asm__("%0 <<= 8;\n %0.L = %0.L + %0.H (NS);\n": "+d"(xw)); return (__u16)xw; } #define __arch_swab16 __arch_swab16 #endif /* __GNUC__ */ #endif /* _UAPI_BLACKFIN_SWAB_H */