| /* |
| * 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 |
| |
| extern unsigned short const crc16_table[256]; |
| |
| extern unsigned short crc16(const void *buffer, unsigned int len); |
| |
| static inline unsigned short crc16_byte(unsigned short crc, |
| const unsigned char data) |
| { |
| return (crc >> 8) ^ crc16_table[(crc ^ data) & 0xff]; |
| } |
| |
| #endif /* __CRC16_H */ |