41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
|
/*
|
||
|
|
* This file is part of the coreboot project.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2019 HardenedLinux
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; version 2 of the License.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef CRC_BYTE_H
|
||
|
|
#define CRC_BYTE_H
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
/* This function is used to calculate crc7 byte by byte, with polynomial
|
||
|
|
* x^7 + x^3 + 1.
|
||
|
|
*
|
||
|
|
* prev_crc: old crc result (0 for first)
|
||
|
|
* data: new byte
|
||
|
|
* return value: new crc result
|
||
|
|
*/
|
||
|
|
uint8_t crc7_byte(uint8_t prev_crc, uint8_t data);
|
||
|
|
|
||
|
|
/* This function is used to calculate crc16 byte by byte, with polynomial
|
||
|
|
* x^16 + x^12 + x^5 + 1.
|
||
|
|
*
|
||
|
|
* prev_crc: old crc result (0 for first)
|
||
|
|
* data: new byte
|
||
|
|
* return value: new crc result
|
||
|
|
*/
|
||
|
|
uint16_t crc16_byte(uint16_t prev_crc, uint8_t data);
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* CRC_BYTE_H */
|