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104f811e67
This unifies all the EC header files to use __CROS_EC_FILENAME_H as the include guard. Well, except for test/ util/ and extra/ which use __TEST_ __UTIL_ and __EXTRA_ prefixes respectively. BUG=chromium:496895 BRANCH=none TEST=make buildall -j Signed-off-by: Bill Richardson <wfrichar@chromium.org> Change-Id: Iea71b3a08bdec94a11239de810a2b2e152b15029 Reviewed-on: https://chromium-review.googlesource.com/278121 Reviewed-by: Randall Spangler <rspangler@chromium.org>
22 lines
673 B
C
22 lines
673 B
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Very simple 8-bit CRC function.
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*/
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#ifndef __CROS_EC_CRC8_H
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#define __CROS_EC_CRC8_H
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/**
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* crc8
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* Return CRC-8 of the data, using x^8 + x^2 + x + 1 polynomial. A table-based
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* algorithm would be faster, but for only a few bytes it isn't worth the code
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* size.
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* @param data uint8_t *, input, a pointer to input data
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* @param len int, input, size of iput data in byte
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* @return the crc-8 of the input data.
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*/
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uint8_t crc8(const uint8_t *data, int len);
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#endif /* __CROS_EC_CRC8_H */
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