projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
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|---|---|---|
| 1af84a62 HH |
1 | #ifndef __ASM_SH_SWAB_H |
| 2 | #define __ASM_SH_SWAB_H | |
| 3 | ||
| 4 | /* | |
| 5 | * Copyright (C) 1999 Niibe Yutaka | |
| 6 | * Copyright (C) 2000, 2001 Paolo Alberelli | |
| 7 | */ | |
| 8 | #include <linux/compiler.h> | |
| 9 | #include <linux/types.h> | |
| f8f06bc7 | 10 | #include <asm-generic/swab.h> |
| 1af84a62 HH |
11 | |
| 12 | static inline __attribute_const__ __u32 __arch_swab32(__u32 x) | |
| 13 | { | |
| 14 | __asm__( | |
| 15 | #ifdef __SH5__ | |
| 567bb8fd | 16 | "byterev %1, %0\n\t" |
| 1af84a62 HH |
17 | "shari %0, 32, %0" |
| 18 | #else | |
| 567bb8fd | 19 | "swap.b %1, %0\n\t" |
| 1af84a62 HH |
20 | "swap.w %0, %0\n\t" |
| 21 | "swap.b %0, %0" | |
| 22 | #endif | |
| 23 | : "=r" (x) | |
| 567bb8fd | 24 | : "r" (x)); |
| 1af84a62 HH |
25 | |
| 26 | return x; | |
| 27 | } | |
| 28 | #define __arch_swab32 __arch_swab32 | |
| 29 | ||
| 30 | static inline __attribute_const__ __u16 __arch_swab16(__u16 x) | |
| 31 | { | |
| 32 | __asm__( | |
| 33 | #ifdef __SH5__ | |
| 567bb8fd | 34 | "byterev %1, %0\n\t" |
| 1af84a62 HH |
35 | "shari %0, 32, %0" |
| 36 | #else | |
| 567bb8fd | 37 | "swap.b %1, %0" |
| 1af84a62 HH |
38 | #endif |
| 39 | : "=r" (x) | |
| 567bb8fd | 40 | : "r" (x)); |
| 1af84a62 HH |
41 | |
| 42 | return x; | |
| 43 | } | |
| 44 | #define __arch_swab16 __arch_swab16 | |
| 45 | ||
| 46 | static inline __u64 __arch_swab64(__u64 val) | |
| 47 | { | |
| 48 | union { | |
| 49 | struct { __u32 a,b; } s; | |
| 50 | __u64 u; | |
| 51 | } v, w; | |
| 52 | v.u = val; | |
| 53 | w.s.b = __arch_swab32(v.s.a); | |
| 54 | w.s.a = __arch_swab32(v.s.b); | |
| 55 | return w.u; | |
| 56 | } | |
| 57 | #define __arch_swab64 __arch_swab64 | |
| 58 | ||
| 59 | #endif /* __ASM_SH_SWAB_H */ |