| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #ifndef _CBFS_H_ |
| #define _CBFS_H_ |
| |
| #include <commonlib/cbfs.h> |
| #include <program_loading.h> |
| |
| /*********************************************** |
| * Perform CBFS operations on the boot device. * |
| ***********************************************/ |
| |
| /* Return mapping of option ROM found in boot device. NULL on error. */ |
| void *cbfs_boot_map_optionrom(uint16_t vendor, uint16_t device); |
| /* Return mapping of option ROM with revision number. Returns NULL on error. */ |
| void *cbfs_boot_map_optionrom_revision(uint16_t vendor, uint16_t device, uint8_t rev); |
| /* Locate file by name and optional type. Return 0 on success. < 0 on error. */ |
| int cbfs_boot_locate(struct cbfsf *fh, const char *name, uint32_t *type); |
| /* Map file into memory leaking the mapping. Only should be used when |
| * leaking mappings are a no-op. Returns NULL on error, else returns |
| * the mapping and sets the size of the file. */ |
| void *cbfs_boot_map_with_leak(const char *name, uint32_t type, size_t *size); |
| /* Locate file in a specific region of fmap. Return 0 on success. < 0 on error*/ |
| int cbfs_locate_file_in_region(struct cbfsf *fh, const char *region_name, |
| const char *name, uint32_t *type); |
| /* Load an arbitrary type file from CBFS into a buffer. Returns amount of |
| * loaded bytes on success or 0 on error. File will get decompressed as |
| * necessary. Same decompression requirements as |
| * cbfs_load_and_decompress(). */ |
| size_t cbfs_boot_load_file(const char *name, void *buf, size_t buf_size, |
| uint32_t type); |
| /* Load |in_size| bytes from |rdev| at |offset| to the |buffer_size| bytes |
| * large |buffer|, decompressing it according to |compression| in the process. |
| * Returns the decompressed file size, or 0 on error. |
| * LZMA files will be mapped for decompression. LZ4 files will be decompressed |
| * in-place with the buffer size requirements outlined in compression.h. */ |
| size_t cbfs_load_and_decompress(const struct region_device *rdev, size_t offset, |
| size_t in_size, void *buffer, size_t buffer_size, uint32_t compression); |
| |
| /* Load stage into memory filling in prog. Return 0 on success. < 0 on error. */ |
| int cbfs_prog_stage_load(struct prog *prog); |
| |
| /* Returns the region device of the currently active CBFS. |
| Return < 0 on error, 0 on success. */ |
| int cbfs_boot_region_device(struct region_device *rdev); |
| |
| #endif |