| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * 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> |
| */ |
| |
| #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 */ |
| |
