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3c4800e594
Add crc32_ctx.. functions to take context parameter. This allows for multiple instances to exist in parallel. Signed-off-by: mschilder@google.com TEST=make buildall -j8 succeeds BRANCH=none BUG=b:73832883 Change-Id: I66bbc56377eeebf01c790caad0bc4c7a51a1bc58 Reviewed-on: https://chromium-review.googlesource.com/935825 Commit-Ready: Marius Schilder <mschilder@chromium.org> Tested-by: Marius Schilder <mschilder@chromium.org> Reviewed-by: Marius Schilder <mschilder@chromium.org> Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
42 lines
907 B
C
42 lines
907 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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#ifndef __CROS_EC_CRC_H
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#define __CROS_EC_CRC_H
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/* CRC-32 implementation with USB constants */
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/* Note: it's a stateful CRC-32 to match the hardware block interface */
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#ifdef CONFIG_HW_CRC
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#include "crc_hw.h"
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#else
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/* Use software implementation */
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/* Static context variant */
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void crc32_init(void);
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void crc32_hash32(uint32_t val);
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void crc32_hash16(uint16_t val);
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uint32_t crc32_result(void);
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/* Provided context variant */
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void crc32_ctx_init(uint32_t *ctx);
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void crc32_ctx_hash32(uint32_t *ctx, uint32_t val);
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void crc32_ctx_hash16(uint32_t *ctx, uint16_t val);
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void crc32_ctx_hash8(uint32_t *ctx, uint8_t val);
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uint32_t crc32_ctx_result(uint32_t *ctx);
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#endif /* CONFIG_HW_CRC */
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#endif /* __CROS_EC_CRC_H */
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