2009-01-06 17:56:22 -05:00
|
|
|
/*
|
|
|
|
* AVR32 byteswapping functions.
|
|
|
|
*/
|
|
|
|
#ifndef __ASM_AVR32_SWAB_H
|
|
|
|
#define __ASM_AVR32_SWAB_H
|
|
|
|
|
2009-01-31 00:16:26 -05:00
|
|
|
#include <linux/types.h>
|
2009-01-06 17:56:22 -05:00
|
|
|
#include <linux/compiler.h>
|
|
|
|
|
|
|
|
#define __SWAB_64_THRU_32__
|
|
|
|
|
|
|
|
#ifdef __CHECKER__
|
|
|
|
extern unsigned long __builtin_bswap_32(unsigned long x);
|
|
|
|
extern unsigned short __builtin_bswap_16(unsigned short x);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
|
|
* avr32-linux-gcc versions earlier than 4.2 improperly sign-extends
|
|
|
|
* the result.
|
|
|
|
*/
|
|
|
|
#if !(__GNUC__ == 4 && __GNUC_MINOR__ < 2)
|
|
|
|
static inline __attribute_const__ __u16 __arch_swab16(__u16 val)
|
|
|
|
{
|
|
|
|
return __builtin_bswap_16(val);
|
|
|
|
}
|
|
|
|
#define __arch_swab16 __arch_swab16
|
|
|
|
|
|
|
|
static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
|
|
|
|
{
|
|
|
|
return __builtin_bswap_32(val);
|
|
|
|
}
|
|
|
|
#define __arch_swab32 __arch_swab32
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#endif /* __ASM_AVR32_SWAB_H */
|