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https://github.com/zephyrproject-rtos/zephyr
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57b5f7193b
Add missing braces to comply with MISRA C:2012 Rule 15.6 and also following Zephyr's style guideline. Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
33 lines
607 B
C
33 lines
607 B
C
/*
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* Copyright (C) 2024 BayLibre.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/sys/crc.h>
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#define CRC24_PGP_POLY 0x01864cfbU
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uint32_t crc24_pgp(const uint8_t *data, size_t len)
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{
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return crc24_pgp_update(CRC24_PGP_INITIAL_VALUE, data, len) & CRC24_FINAL_VALUE_MASK;
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}
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/* CRC-24 implementation from the section 6.1 of the RFC 4880 */
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uint32_t crc24_pgp_update(uint32_t crc, const uint8_t *data, size_t len)
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{
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int i;
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while (len--) {
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crc ^= (*data++) << 16;
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for (i = 0; i < 8; i++) {
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crc <<= 1;
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if (crc & 0x01000000) {
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crc ^= CRC24_PGP_POLY;
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}
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}
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}
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return crc;
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}
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