/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _FMAP_H_ #define _FMAP_H_ #include <commonlib/bsd/fmap_serialized.h> #include <commonlib/region.h> #include <stddef.h> #include <stdint.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