blob: 7e62705036fbe99c367cceb5e9f7b0a581e7b8a8 [file] [log] [blame]
* Copyright (c) 2011 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 __FMAP_H__
#define __FMAP_H__
#include <inttypes.h>
#include <stddef.h>
/* FMAP structs. See */
#define FMAP_NAMELEN 32
#define FMAP_VER_MAJOR 1
typedef struct _FmapHeader {
char fmap_signature[FMAP_SIGNATURE_SIZE]; /* avoiding endian issues */
uint8_t fmap_ver_major;
uint8_t fmap_ver_minor;
uint64_t fmap_base;
uint32_t fmap_size;
char fmap_name[FMAP_NAMELEN];
uint16_t fmap_nareas;
} __attribute__((packed)) FmapHeader;
typedef struct _FmapAreaHeader {
uint32_t area_offset;
uint32_t area_size;
char area_name[FMAP_NAMELEN];
uint16_t area_flags;
} __attribute__((packed)) FmapAreaHeader;
/* Find and point to the FMAP header within the buffer */
FmapHeader *fmap_find(uint8_t *ptr, size_t size);
/* Search for an area by name, return pointer to its beginning */
uint8_t *fmap_find_by_name(uint8_t *ptr, size_t size,
/* optional, will call fmap_find() if NULL */
FmapHeader *fmap,
/* The area name to search for */
const char *name,
/* optional, return pointer to entry if not NULL */
FmapAreaHeader **ah);
#endif /* __FMAP_H__ */