blob: 511a7cdb9b02a40d09efd205e680f5aa9d02eab5 [file] [log] [blame]
/* Copyright 2014 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __CROS_EC_CRC_H
#define __CROS_EC_CRC_H
/* CRC-32 implementation with USB constants */
/* Note: it's a stateful CRC-32 to match the hardware block interface */
#ifdef CONFIG_HW_CRC
#include "crc_hw.h"
#else
/* Use software implementation */
/* Static context variant */
void crc32_init(void);
void crc32_hash32(uint32_t val);
void crc32_hash16(uint16_t val);
uint32_t crc32_result(void);
/* Provided context variant */
void crc32_ctx_init(uint32_t *ctx);
void crc32_ctx_hash32(uint32_t *ctx, uint32_t val);
void crc32_ctx_hash16(uint32_t *ctx, uint16_t val);
void crc32_ctx_hash8(uint32_t *ctx, uint8_t val);
uint32_t crc32_ctx_result(uint32_t *ctx);
#endif /* CONFIG_HW_CRC */
#endif /* __CROS_EC_CRC_H */