1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2009 4 * Marvell Semiconductor <www.marvell.com> 5 * Written-by: Prafulla Wadaskar <prafulla@marvell.com> 6 */ 7 8 #ifndef _UBOOT_CRC_H 9 #define _UBOOT_CRC_H 10 11 /* lib/crc8.c */ 12 unsigned int crc8(unsigned int crc_start, const unsigned char *vptr, int len); 13 14 /* lib/crc16.c - 16 bit CRC with polynomial x^16+x^12+x^5+1 (CRC-CCITT) */ 15 uint16_t crc16_ccitt(uint16_t crc_start, const unsigned char *s, int len); 16 /** 17 * crc16_ccitt_wd_buf - Perform CRC16-CCIT on an input buffer and return the 18 * 16-bit result (network byte-order) in an output buffer 19 * 20 * @in: input buffer 21 * @len: input buffer length 22 * @out: output buffer (at least 2 bytes) 23 * @chunk_sz: ignored 24 */ 25 void crc16_ccitt_wd_buf(const uint8_t *in, uint len, 26 uint8_t *out, uint chunk_sz); 27 28 /* lib/crc32.c */ 29 uint32_t crc32 (uint32_t, const unsigned char *, uint); 30 uint32_t crc32_wd (uint32_t, const unsigned char *, uint, uint); 31 uint32_t crc32_no_comp (uint32_t, const unsigned char *, uint); 32 33 /** 34 * crc32_wd_buf - Perform CRC32 on a buffer and return result in buffer 35 * 36 * @input: Input buffer 37 * @ilen: Input buffer length 38 * @output: Place to put checksum result (4 bytes) 39 * @chunk_sz: Trigger watchdog after processing this many bytes 40 */ 41 void crc32_wd_buf(const unsigned char *input, uint ilen, 42 unsigned char *output, uint chunk_sz); 43 44 /* lib/crc32c.c */ 45 void crc32c_init(uint32_t *, uint32_t); 46 uint32_t crc32c_cal(uint32_t, const char *, int, uint32_t *); 47 48 #endif /* _UBOOT_CRC_H */ 49