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