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1394f032 BW |
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 */ |