67 lines
2.9 KiB
C
67 lines
2.9 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2015 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _CBFS_H_
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#define _CBFS_H_
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#include <commonlib/cbfs.h>
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#include <program_loading.h>
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/***********************************************
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* Perform CBFS operations on the boot device. *
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***********************************************/
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/* Return mapping of option ROM found in boot device. NULL on error. */
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void *cbfs_boot_map_optionrom(uint16_t vendor, uint16_t device);
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/* Load stage by name into memory. Returns entry address on success. NULL on
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* failure. */
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void *cbfs_boot_load_stage_by_name(const char *name);
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/* Locate file by name and optional type. Return 0 on success. < 0 on error. */
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int cbfs_boot_locate(struct cbfsf *fh, const char *name, uint32_t *type);
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/* Map file into memory leaking the mapping. Only should be used when
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* leaking mappings are a no-op. Returns NULL on error, else returns
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* the mapping and sets the size of the file. */
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void *cbfs_boot_map_with_leak(const char *name, uint32_t type, size_t *size);
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/* Locate file in a specific region of fmap. Return 0 on success. < 0 on error*/
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int cbfs_locate_file_in_region(struct cbfsf *fh, const char *region_name,
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const char *name, uint32_t *type);
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/* Load an arbitrary type file from CBFS into a buffer. Returns amount of
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* loaded bytes on success or 0 on error. File will get decompressed as
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* necessary. Same decompression requirements as
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* cbfs_load_and_decompress(). */
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size_t cbfs_boot_load_file(const char *name, void *buf, size_t buf_size,
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uint32_t type);
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/* Load |in_size| bytes from |rdev| at |offset| to the |buffer_size| bytes
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* large |buffer|, decompressing it according to |compression| in the process.
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* Returns the decompressed file size, or 0 on error.
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* LZMA files will be mapped for decompression. LZ4 files will be decompressed
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* in-place with the buffer size requirements outlined in compression.h. */
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size_t cbfs_load_and_decompress(const struct region_device *rdev, size_t offset,
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size_t in_size, void *buffer, size_t buffer_size, uint32_t compression);
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/* Return the size and fill base of the memory pstage will occupy after
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* loaded.
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*/
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size_t cbfs_prog_stage_section(struct prog *pstage, uintptr_t *base);
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/* Load stage into memory filling in prog. Return 0 on success. < 0 on error. */
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int cbfs_prog_stage_load(struct prog *prog);
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/* Returns the region device of the currently active CBFS.
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Return < 0 on error, 0 on success. */
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int cbfs_boot_region_device(struct region_device *rdev);
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#endif
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