mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
ed6ce67a2c
Crc7 is used to compute mmc spi command packet checksum. Copy from linux-2.6 lib/crc7.c include/linux/crc7.h commit ad241528c4919505afccb022acbab3eeb0db4d80 Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
15 lines
272 B
C
15 lines
272 B
C
#ifndef _LINUX_CRC7_H
|
|
#define _LINUX_CRC7_H
|
|
#include <linux/types.h>
|
|
|
|
extern const u8 crc7_syndrome_table[256];
|
|
|
|
static inline u8 crc7_byte(u8 crc, u8 data)
|
|
{
|
|
return crc7_syndrome_table[(crc << 1) ^ data];
|
|
}
|
|
|
|
extern u8 crc7(u8 crc, const u8 *buffer, size_t len);
|
|
|
|
#endif
|