kopia lustrzana https://github.com/espressif/esp-idf
98 wiersze
2.6 KiB
C
98 wiersze
2.6 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
#pragma once
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
|
|
// This header is only a wrapper on ROM CRC API
|
|
#include "esp_rom_crc.h"
|
|
|
|
/**
|
|
* @brief CRC32 value in little endian.
|
|
*
|
|
* @param crc: Initial CRC value (result of last calculation or 0 for the first time)
|
|
* @param buf: Data buffer that used to calculate the CRC value
|
|
* @param len: Length of the data buffer
|
|
* @return CRC32 value
|
|
*/
|
|
static inline uint32_t esp_crc32_le(uint32_t crc, uint8_t const *buf, uint32_t len)
|
|
{
|
|
return esp_rom_crc32_le(crc, buf, len);
|
|
}
|
|
|
|
/**
|
|
* @brief CRC32 value in big endian.
|
|
*
|
|
* @param crc: Initial CRC value (result of last calculation or 0 for the first time)
|
|
* @param buf: Data buffer that used to calculate the CRC value
|
|
* @param len: Length of the data buffer
|
|
* @return CRC32 value
|
|
*/
|
|
static inline uint32_t esp_crc32_be(uint32_t crc, uint8_t const *buf, uint32_t len)
|
|
{
|
|
return esp_rom_crc32_be(crc, buf, len);
|
|
}
|
|
|
|
/**
|
|
* @brief CRC16 value in little endian.
|
|
*
|
|
* @param crc: Initial CRC value (result of last calculation or 0 for the first time)
|
|
* @param buf: Data buffer that used to calculate the CRC value
|
|
* @param len: Length of the data buffer
|
|
* @return CRC16 value
|
|
*/
|
|
static inline uint16_t esp_crc16_le(uint16_t crc, uint8_t const *buf, uint32_t len)
|
|
{
|
|
return esp_rom_crc16_le(crc, buf, len);
|
|
}
|
|
|
|
/**
|
|
* @brief CRC16 value in big endian.
|
|
*
|
|
* @param crc: Initial CRC value (result of last calculation or 0 for the first time)
|
|
* @param buf: Data buffer that used to calculate the CRC value
|
|
* @param len: Length of the data buffer
|
|
* @return CRC16 value
|
|
*/
|
|
static inline uint16_t esp_crc16_be(uint16_t crc, uint8_t const *buf, uint32_t len)
|
|
{
|
|
return esp_rom_crc16_be(crc, buf, len);
|
|
}
|
|
|
|
/**
|
|
* @brief CRC8 value in little endian.
|
|
*
|
|
* @param crc: Initial CRC value (result of last calculation or 0 for the first time)
|
|
* @param buf: Data buffer that used to calculate the CRC value
|
|
* @param len: Length of the data buffer
|
|
* @return CRC8 value
|
|
*/
|
|
static inline uint8_t esp_crc8_le(uint8_t crc, uint8_t const *buf, uint32_t len)
|
|
{
|
|
return esp_rom_crc8_le(crc, buf, len);
|
|
}
|
|
|
|
/**
|
|
* @brief CRC8 value in big endian.
|
|
*
|
|
* @param crc: Initial CRC value (result of last calculation or 0 for the first time)
|
|
* @param buf: Data buffer that used to calculate the CRC value
|
|
* @param len: Length of the data buffer
|
|
* @return CRC8 value
|
|
*/
|
|
static inline uint8_t esp_crc8_be(uint8_t crc, uint8_t const *buf, uint32_t len)
|
|
{
|
|
return esp_rom_crc8_be(crc, buf, len);
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|