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author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-08-19 13:18:07 +0300 |
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committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-08-19 13:20:49 +0300 |
commit | 36ec51948e0ecbf8cb9c5e44fbba5214451ee81c (patch) | |
tree | e0f613c22d1b7a83512ad04b0b9b76dcb09199d9 /mkfs.ubifs/crc16.h | |
parent | 71e18cc40c6a275e01c166ffeb68c5ed8759caf0 (diff) |
Add mkfs.ubifs
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'mkfs.ubifs/crc16.h')
-rw-r--r-- | mkfs.ubifs/crc16.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/mkfs.ubifs/crc16.h b/mkfs.ubifs/crc16.h new file mode 100644 index 0000000..539d21a --- /dev/null +++ b/mkfs.ubifs/crc16.h @@ -0,0 +1,27 @@ +/* + * Implements the standard CRC-16: + * Width 16 + * Poly 0x8005 (x^16 + x^15 + x^2 + 1) + * Init 0 + * + * Copyright (c) 2005 Ben Gardner <bgardner@wabtec.com> + * + * This code was taken from the linux kernel. The license is GPL Version 2. + */ + +#ifndef __CRC16_H__ +#define __CRC16_H__ + +#include <stdlib.h> +#include <stdint.h> + +extern uint16_t const crc16_table[256]; + +extern uint16_t crc16(uint16_t crc, const uint8_t *buffer, size_t len); + +static inline uint16_t crc16_byte(uint16_t crc, const uint8_t data) +{ + return (crc >> 8) ^ crc16_table[(crc ^ data) & 0xff]; +} + +#endif /* __CRC16_H__ */ |