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305e9e5e85
BUG=chromium-os:1302 TEST=emerge vboot_reference && (load_firmware_test firmware_image.bin | grep LOAD_FIRMWARE_SUCCESS) Review URL: http://codereview.chromium.org/6465018 Change-Id: I85fce39aaf4abb50bd70d126ac8c7cb892a7857b
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*
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* Copyright (c) 2011 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 __FMAP_H__
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#define __FMAP_H__
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#include <inttypes.h>
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#include <stddef.h>
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/* FMAP structs. See http://code.google.com/p/flashmap/wiki/FmapSpec */
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#define FMAP_NAMELEN 32
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#define FMAP_SIGNATURE "__FMAP__"
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#define FMAP_SIGNATURE_SIZE 8
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#define FMAP_SEARCH_STRIDE 4
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typedef struct _FmapHeader {
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char fmap_signature[FMAP_SIGNATURE_SIZE]; /* avoiding endian issues */
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uint8_t fmap_ver_major;
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uint8_t fmap_ver_minor;
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uint64_t fmap_base;
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uint32_t fmap_size;
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char fmap_name[FMAP_NAMELEN];
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uint16_t fmap_nareas;
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} __attribute__((packed)) FmapHeader;
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typedef struct _FmapAreaHeader {
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uint32_t area_offset;
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uint32_t area_size;
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char area_name[FMAP_NAMELEN];
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uint16_t area_flags;
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} __attribute__((packed)) FmapAreaHeader;
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/* Scan firmware image, pointed by [ptr] with length [size], for fmap header.
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* Return pointer to fmap header, or NULL if not found.
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*/
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const char* FmapFind(const char *ptr, size_t size);
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/* Look up fmap area by name, that is, strcmp(fh->fmap_name, name) == 0.
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* Return index of fmap area, that is, ah[returned_index],
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* or -1 if not found. */
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int FmapAreaIndex(const FmapHeader* fh, const FmapAreaHeader* ah,
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const char* name);
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#endif /* __FMAP_H__ */
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