| /* |
| * 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__ */ |
