u-boot-brain/include/u-boot/crc.h
Philipp Tomsich a740ee913e lib: merge CRC16-CCITT into u-boot/crc.h
This merges the CRC16-CCITT headers into u-boot/crc.h to prepare for
rolling CRC16 into the hash infrastructure.  Given that CRC8, CRC32
and CRC32-C already have their prototypes in a single header file, it
seems a good idea to also include CRC16-CCITT in the same.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-12-08 20:18:32 -05:00

38 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2009
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*/
#ifndef _UBOOT_CRC_H
#define _UBOOT_CRC_H
/* lib/crc8.c */
unsigned int crc8(unsigned int crc_start, const unsigned char *vptr, int len);
/* lib/crc16.c - 16 bit CRC with polynomial x^16+x^12+x^5+1 (CRC-CCITT) */
uint16_t crc16_ccitt(uint16_t crc_start, const unsigned char *s, int len);
/* lib/crc32.c */
uint32_t crc32 (uint32_t, const unsigned char *, uint);
uint32_t crc32_wd (uint32_t, const unsigned char *, uint, uint);
uint32_t crc32_no_comp (uint32_t, const unsigned char *, uint);
/**
* crc32_wd_buf - Perform CRC32 on a buffer and return result in buffer
*
* @input: Input buffer
* @ilen: Input buffer length
* @output: Place to put checksum result (4 bytes)
* @chunk_sz: Trigger watchdog after processing this many bytes
*/
void crc32_wd_buf(const unsigned char *input, uint ilen,
unsigned char *output, uint chunk_sz);
/* lib/crc32c.c */
void crc32c_init(uint32_t *, uint32_t);
uint32_t crc32c_cal(uint32_t, const char *, int, uint32_t *);
#endif /* _UBOOT_CRC_H */