| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2009 Analog Devices Inc. |
| 3 | * |
| 4 | * Licensed under the GPL-2 or later. |
| 5 | */ |
| 6 | |
| 7 | #ifndef _UAPI_BLACKFIN_SWAB_H |
| 8 | #define _UAPI_BLACKFIN_SWAB_H |
| 9 | |
| 10 | #include <linux/types.h> |
| 11 | #include <asm-generic/swab.h> |
| 12 | |
| 13 | #ifdef __GNUC__ |
| 14 | |
| 15 | static __inline__ __attribute_const__ __u32 __arch_swahb32(__u32 xx) |
| 16 | { |
| 17 | __u32 tmp; |
| 18 | __asm__("%1 = %0 >> 8 (V);\n\t" |
| 19 | "%0 = %0 << 8 (V);\n\t" |
| 20 | "%0 = %0 | %1;\n\t" |
| 21 | : "+d"(xx), "=&d"(tmp)); |
| 22 | return xx; |
| 23 | } |
| 24 | #define __arch_swahb32 __arch_swahb32 |
| 25 | |
| 26 | static __inline__ __attribute_const__ __u32 __arch_swahw32(__u32 xx) |
| 27 | { |
| 28 | __u32 rv; |
| 29 | __asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx)); |
| 30 | return rv; |
| 31 | } |
| 32 | #define __arch_swahw32 __arch_swahw32 |
| 33 | |
| 34 | static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 xx) |
| 35 | { |
| 36 | return __arch_swahb32(__arch_swahw32(xx)); |
| 37 | } |
| 38 | #define __arch_swab32 __arch_swab32 |
| 39 | |
| 40 | static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 xx) |
| 41 | { |
| 42 | __u32 xw = xx; |
| 43 | __asm__("%0 <<= 8;\n %0.L = %0.L + %0.H (NS);\n": "+d"(xw)); |
| 44 | return (__u16)xw; |
| 45 | } |
| 46 | #define __arch_swab16 __arch_swab16 |
| 47 | |
| 48 | #endif /* __GNUC__ */ |
| 49 | |
| 50 | #endif /* _UAPI_BLACKFIN_SWAB_H */ |