android_kernel_motorola_sm6225/arch/blackfin/include/asm/swab.h
Robin Getz 96f1050d3d Blackfin: mass clean up of copyright/licensing info
Bill Gatliff & David Brownell pointed out we were missing some
copyrights, and licensing terms in some of the files in
./arch/blackfin, so this fixes things, and cleans them up.

It also removes:
 - verbose GPL text(refer to the top level ./COPYING file)
 - file names (you are looking at the file)
 - bug url (it's in the ./MAINTAINERS file)
 - "or later" on GPL-2, when we did not have that right

It also allows some Blackfin-specific assembly files to be under a BSD
like license (for people to use them outside of Linux).

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-07 04:36:26 -04:00

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1 KiB
C

/*
* Copyright 2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef _BLACKFIN_SWAB_H
#define _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 /* _BLACKFIN_SWAB_H */