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 | |
Albin Tonnerre | 2fa4341 | 2009-09-23 15:57:38 -0700 | [diff] [blame] | 4 | #include <linux/types.h> |
Harvey Harrison | 064106a | 2008-04-29 01:03:27 -0700 | [diff] [blame] | 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 */ |