Merge branch 'devel' into next
[pandora-kernel.git] / include / asm-blackfin / byteorder.h
1 #ifndef _BLACKFIN_BYTEORDER_H
2 #define _BLACKFIN_BYTEORDER_H
3
4 #include <asm/types.h>
5 #include <linux/compiler.h>
6
7 #ifdef __GNUC__
8
9 static __inline__ __attribute_const__ __u32 ___arch__swahb32(__u32 xx)
10 {
11         __u32 tmp;
12         __asm__("%1 = %0 >> 8 (V);\n\t"
13                 "%0 = %0 << 8 (V);\n\t"
14                 "%0 = %0 | %1;\n\t"
15                 : "+d"(xx), "=&d"(tmp));
16         return xx;
17 }
18
19 static __inline__ __attribute_const__ __u32 ___arch__swahw32(__u32 xx)
20 {
21         __u32 rv;
22         __asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx));
23         return rv;
24 }
25
26 #define __arch__swahb32(x) ___arch__swahb32(x)
27 #define __arch__swahw32(x) ___arch__swahw32(x)
28 #define __arch__swab32(x) ___arch__swahb32(___arch__swahw32(x))
29
30 static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 xx)
31 {
32         __u32 xw = xx;
33         __asm__("%0 <<= 8;\n    %0.L = %0.L + %0.H (NS);\n": "+d"(xw));
34         return (__u16)xw;
35 }
36
37 #define __arch__swab16(x) ___arch__swab16(x)
38
39 #endif
40
41 #if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
42 #  define __BYTEORDER_HAS_U64__
43 #  define __SWAB_64_THRU_32__
44 #endif
45
46 #include <linux/byteorder/little_endian.h>
47
48 #endif                          /* _BLACKFIN_BYTEORDER_H */