| Harvey Harrison | 064106a | 2008-04-29 01:03:27 -0700 | [diff] [blame] | 1 | #ifndef _LINUX_UNALIGNED_LE_BYTESHIFT_H | 
|  | 2 | #define _LINUX_UNALIGNED_LE_BYTESHIFT_H | 
|  | 3 |  | 
|  | 4 | #include <linux/kernel.h> | 
|  | 5 |  | 
|  | 6 | static inline u16 __get_unaligned_le16(const u8 *p) | 
|  | 7 | { | 
|  | 8 | return p[0] | p[1] << 8; | 
|  | 9 | } | 
|  | 10 |  | 
|  | 11 | static inline u32 __get_unaligned_le32(const u8 *p) | 
|  | 12 | { | 
|  | 13 | return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24; | 
|  | 14 | } | 
|  | 15 |  | 
|  | 16 | static inline u64 __get_unaligned_le64(const u8 *p) | 
|  | 17 | { | 
|  | 18 | return (u64)__get_unaligned_le32(p + 4) << 32 | | 
|  | 19 | __get_unaligned_le32(p); | 
|  | 20 | } | 
|  | 21 |  | 
|  | 22 | static inline void __put_unaligned_le16(u16 val, u8 *p) | 
|  | 23 | { | 
|  | 24 | *p++ = val; | 
|  | 25 | *p++ = val >> 8; | 
|  | 26 | } | 
|  | 27 |  | 
|  | 28 | static inline void __put_unaligned_le32(u32 val, u8 *p) | 
|  | 29 | { | 
|  | 30 | __put_unaligned_le16(val >> 16, p + 2); | 
|  | 31 | __put_unaligned_le16(val, p); | 
|  | 32 | } | 
|  | 33 |  | 
|  | 34 | static inline void __put_unaligned_le64(u64 val, u8 *p) | 
|  | 35 | { | 
|  | 36 | __put_unaligned_le32(val >> 32, p + 4); | 
|  | 37 | __put_unaligned_le32(val, p); | 
|  | 38 | } | 
|  | 39 |  | 
|  | 40 | static inline u16 get_unaligned_le16(const void *p) | 
|  | 41 | { | 
|  | 42 | return __get_unaligned_le16((const u8 *)p); | 
|  | 43 | } | 
|  | 44 |  | 
|  | 45 | static inline u32 get_unaligned_le32(const void *p) | 
|  | 46 | { | 
|  | 47 | return __get_unaligned_le32((const u8 *)p); | 
|  | 48 | } | 
|  | 49 |  | 
|  | 50 | static inline u64 get_unaligned_le64(const void *p) | 
|  | 51 | { | 
|  | 52 | return __get_unaligned_le64((const u8 *)p); | 
|  | 53 | } | 
|  | 54 |  | 
|  | 55 | static inline void put_unaligned_le16(u16 val, void *p) | 
|  | 56 | { | 
|  | 57 | __put_unaligned_le16(val, p); | 
|  | 58 | } | 
|  | 59 |  | 
|  | 60 | static inline void put_unaligned_le32(u32 val, void *p) | 
|  | 61 | { | 
|  | 62 | __put_unaligned_le32(val, p); | 
|  | 63 | } | 
|  | 64 |  | 
|  | 65 | static inline void put_unaligned_le64(u64 val, void *p) | 
|  | 66 | { | 
|  | 67 | __put_unaligned_le64(val, p); | 
|  | 68 | } | 
|  | 69 |  | 
|  | 70 | #endif /* _LINUX_UNALIGNED_LE_BYTESHIFT_H */ |