118a9c7b03
Done with sed and God Lines. Only done for C-like code for now. Change-Id: Id3a0b63272ebda3dad13803700bcff36d36f4815 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40054 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
41 lines
861 B
C
41 lines
861 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* This file is part of the coreboot project. */
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#include <crc_byte.h>
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uint8_t crc7_byte(uint8_t prev_crc, uint8_t data)
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{
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const uint8_t g = 0x89;
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prev_crc ^= data;
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for (int i = 0; i < 8; i++) {
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if (prev_crc & 0x80)
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prev_crc ^= g;
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prev_crc <<= 1;
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}
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return prev_crc;
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}
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uint16_t crc16_byte(uint16_t prev_crc, uint8_t data)
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{
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prev_crc = (uint8_t)(prev_crc >> 8)|(prev_crc << 8);
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prev_crc ^= data;
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prev_crc ^= (uint8_t)(prev_crc & 0xff) >> 4;
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prev_crc ^= (prev_crc << 8) << 4;
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prev_crc ^= ((prev_crc & 0xff) << 4) << 1;
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return prev_crc;
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}
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uint32_t crc32_byte(uint32_t prev_crc, uint8_t data)
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{
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prev_crc ^= (uint32_t)data << 24;
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for (int i = 0; i < 8; i++) {
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if ((prev_crc & 0x80000000UL) != 0)
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prev_crc = ((prev_crc << 1) ^ 0x04C11DB7UL);
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else
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prev_crc <<= 1;
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}
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return prev_crc;
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}
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