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/*
* This file is part of the coreboot project.
*
* Copyright 2015 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 _FMAP_H_
#define _FMAP_H_
#include <commonlib/bsd/fmap_serialized.h>
#include <commonlib/region.h>
/* Locate the named area in the fmap and fill in a region device representing
* that area. The region is a sub-region of the readonly boot media. Return
* 0 on success, < 0 on error. */
int fmap_locate_area_as_rdev(const char *name, struct region_device *area);
/* Just like fmap_locate_area_as_rdev(), however the region device is
* created from the RW boot device. */
int fmap_locate_area_as_rdev_rw(const char *name, struct region_device *area);
/* Locate the named area in the fmap and fill in a region with the
* offset and size of that area within the boot media. Return 0 on success,
* < 0 on error. */
int fmap_locate_area(const char *name, struct region *r);
/* Find fmap area name by offset and size.
* Return 0 on success, < 0 on error. */
int fmap_find_region_name(const struct region * const ar,
char name[FMAP_STRLEN]);
/* Read fmap area into provided buffer.
* Return size read on success, < 0 on error. */
ssize_t fmap_read_area(const char *name, void *buffer, size_t size);
/* Write provided buffer into fmap area.
* Return size written on success, < 0 on error. */
ssize_t fmap_overwrite_area(const char *name, const void *buffer, size_t size);
/* Get offset of FMAP in flash. */
uint64_t get_fmap_flash_offset(void);
#endif
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