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https://github.com/brain-hackers/u-boot-brain
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9eefe2a2b3
The U-Boot UBIFS implementation is largely a direct copy from the current Linux version (2.6.29-rc6). As already done in the UBI version we have an "abstraction layer" to redefine or remove some OS calls (e.g. mutex_lock() ...). This makes it possible to use the original Linux code with very little changes. And by this we can better update to later Linux versions. I removed some of the Linux features that are not used in the U-Boot version (e.g. garbage-collection, write support). Signed-off-by: Stefan Roese <sr@denx.de> CC: Artem Bityutskiy <dedekind@infradead.org> CC: Adrian Hunter <ext-Adrian.Hunter@nokia.com>
31 lines
622 B
C
31 lines
622 B
C
/*
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* crc16.h - CRC-16 routine
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*
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* Implements the standard CRC-16:
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* Width 16
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* Poly 0x8005 (x^16 + x^15 + x^2 + 1)
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* Init 0
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*
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* Copyright (c) 2005 Ben Gardner <bgardner@wabtec.com>
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*
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* This source code is licensed under the GNU General Public License,
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* Version 2. See the file COPYING for more details.
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*/
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#ifndef __CRC16_H
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#define __CRC16_H
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#include <linux/types.h>
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extern u16 const crc16_table[256];
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extern u16 crc16(u16 crc, const u8 *buffer, size_t len);
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static inline u16 crc16_byte(u16 crc, const u8 data)
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{
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return (crc >> 8) ^ crc16_table[(crc ^ data) & 0xff];
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}
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#endif /* __CRC16_H */
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