diff options
| author | Dave Airlie <airlied@starflyer.(none)> | 2005-09-25 13:14:45 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@linux.ie> | 2005-09-25 13:14:45 +1000 |
| commit | 4e0c1159d83a658d1ffba5bc3442f4ec4cadb436 (patch) | |
| tree | 36a5079ba7ba9b9e0f2f633356705b980940eac4 /include/linux/crc16.h | |
| parent | ea98a92ff18c03bf7f4d21536986cbbcb4c10cd9 (diff) | |
| parent | ef6bd6eb90ad72ee8ee7ba8b271f27102e9a90c1 (diff) | |
| download | op-kernel-dev-4e0c1159d83a658d1ffba5bc3442f4ec4cadb436.zip op-kernel-dev-4e0c1159d83a658d1ffba5bc3442f4ec4cadb436.tar.gz | |
update from upstream
Diffstat (limited to 'include/linux/crc16.h')
| -rw-r--r-- | include/linux/crc16.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/linux/crc16.h b/include/linux/crc16.h new file mode 100644 index 0000000..9443c08 --- /dev/null +++ b/include/linux/crc16.h @@ -0,0 +1,30 @@ +/* + * crc16.h - CRC-16 routine + * + * 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 source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +#ifndef __CRC16_H +#define __CRC16_H + +#include <linux/types.h> + +extern u16 const crc16_table[256]; + +extern u16 crc16(u16 crc, const u8 *buffer, size_t len); + +static inline u16 crc16_byte(u16 crc, const u8 data) +{ + return (crc >> 8) ^ crc16_table[(crc ^ data) & 0xff]; +} + +#endif /* __CRC16_H */ + |
