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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _COMMON_MRC_CACHE_H_
#define _COMMON_MRC_CACHE_H_
#include <stddef.h>
#include <stdint.h>
/* Wrapper object to save MRC information. */
struct mrc_saved_data {
uint32_t signature;
uint32_t size;
uint32_t checksum;
uint32_t version;
uint8_t data[0];
} __attribute__((packed));
/* Locate the most recently saved MRC data. */
int mrc_cache_get_current(const struct mrc_saved_data **cache);
int mrc_cache_get_current_with_version(const struct mrc_saved_data **cache,
uint32_t version);
/* Stash the resulting MRC data to be saved in non-volatile storage later. */
int mrc_cache_stash_data(const void *data, size_t size);
int mrc_cache_stash_data_with_version(const void *data, size_t size,
uint32_t version);
#endif /* _COMMON_MRC_CACHE_H_ */
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