Files
SDK_SG200x_V2/linux_5.10/include/linux/crc-ccitt.h
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

24 lines
609 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_CRC_CCITT_H
#define _LINUX_CRC_CCITT_H
#include <linux/types.h>
extern u16 const crc_ccitt_table[256];
extern u16 const crc_ccitt_false_table[256];
extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len);
extern u16 crc_ccitt_false(u16 crc, const u8 *buffer, size_t len);
static inline u16 crc_ccitt_byte(u16 crc, const u8 c)
{
return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff];
}
static inline u16 crc_ccitt_false_byte(u16 crc, const u8 c)
{
return (crc << 8) ^ crc_ccitt_false_table[(crc >> 8) ^ c];
}
#endif /* _LINUX_CRC_CCITT_H */