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coreboot-kgpe-d16/src/include/crc_byte.h

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src/include: Use SPDX for GPL-2.0-only files Done with sed and God Lines. Only done for C-like code for now. Change-Id: I2fa3bad88bb5b068baa1cfc6bbcddaabb09da1c5 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40053 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-04-02 23:48:27 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
lib: add calculate crc byte by byte Change-Id: I5cab1f90452b08a464ad7a2d7e75d97187452992 Signed-off-by: Xiang Wang <merle@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36624 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-11-05 05:00:39 +01:00
#ifndef CRC_BYTE_H
#define CRC_BYTE_H
src/include: Add missing includes Change-Id: I746ea7805bae553a146130994d8174aa2e189610 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43368 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-07-12 09:03:22 +02:00
#include <stddef.h>
lib: add calculate crc byte by byte Change-Id: I5cab1f90452b08a464ad7a2d7e75d97187452992 Signed-off-by: Xiang Wang <merle@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36624 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-11-05 05:00:39 +01:00
#include <stdint.h>
/* This function is used to calculate crc7 byte by byte, with polynomial
* x^7 + x^3 + 1.
*
* prev_crc: old crc result (0 for first)
* data: new byte
* return value: new crc result
*/
uint8_t crc7_byte(uint8_t prev_crc, uint8_t data);
/* This function is used to calculate crc16 byte by byte, with polynomial
* x^16 + x^12 + x^5 + 1.
*
* prev_crc: old crc result (0 for first)
* data: new byte
* return value: new crc result
*/
uint16_t crc16_byte(uint16_t prev_crc, uint8_t data);
lib/crc_byte: Add CRC32 implementation * Add CRC32 using polynomial 0x04C11DB7 + Add macro to caculate CRC of a buffer Change-Id: If98e4e12bb53a6e5123e94e8cdffde1eb3bc4b4b Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37753 Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-15 18:03:36 +01:00
/* This function is used to calculate crc32 byte by byte, with polynomial
* x^32 + x^26 + x^23 + x^22 + x^16 + x^12 + x^11 + x^10 + x^8 + x^7 +
* x^5 + x^4 + x^2 + x + 1
*
* prev_crc: old crc result (0 for first)
* data: new byte
* return value: new crc result
*/
uint32_t crc32_byte(uint32_t prev_crc, uint8_t data);
#define CRC(buf, size, crc_func) ({ \
const uint8_t *_crc_local_buf = (const uint8_t *)buf; \
size_t _crc_local_size = size; \
__typeof__(crc_func(0, 0)) _crc_local_result = 0; \
while (_crc_local_size--) { \
_crc_local_result = crc_func(_crc_local_result, *_crc_local_buf++); \
} \
_crc_local_result; \
})
lib: add calculate crc byte by byte Change-Id: I5cab1f90452b08a464ad7a2d7e75d97187452992 Signed-off-by: Xiang Wang <merle@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36624 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-11-05 05:00:39 +01:00
#endif /* CRC_BYTE_H */