Zephyr API Documentation 4.0.99
A Scalable Open Source RTOS
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Public API for flash map. More...
#include <zephyr/types.h>
#include <stddef.h>
#include <sys/types.h>
#include <zephyr/device.h>
#include <zephyr/devicetree.h>
Go to the source code of this file.
Data Structures | |
struct | flash_area |
Flash partition. More... | |
struct | flash_sector |
Structure for transfer flash sector boundaries. More... | |
Macros | |
#define | FIXED_PARTITION_EXISTS(label) |
Returns non-0 value if fixed-partition of given DTS node label exists. | |
#define | FIXED_PARTITION_ID(label) |
Get flash area ID from fixed-partition DTS node label. | |
#define | FIXED_PARTITION_OFFSET(label) |
Get fixed-partition offset from DTS node label. | |
#define | FIXED_PARTITION_NODE_OFFSET(node) |
Get fixed-partition offset from DTS node. | |
#define | FIXED_PARTITION_SIZE(label) |
Get fixed-partition size for DTS node label. | |
#define | FIXED_PARTITION_NODE_SIZE(node) |
Get fixed-partition size for DTS node. | |
#define | FLASH_AREA_DEVICE(label) |
Get device pointer for device the area/partition resides on. | |
#define | FIXED_PARTITION_DEVICE(label) |
Get device pointer for device the area/partition resides on. | |
#define | FIXED_PARTITION_NODE_DEVICE(node) |
Get device pointer for device the area/partition resides on. | |
Typedefs | |
typedef void(* | flash_area_cb_t) (const struct flash_area *fa, void *user_data) |
Flash map iteration callback. | |
Functions | |
int | flash_area_open (uint8_t id, const struct flash_area **fa) |
Retrieve partitions flash area from the flash_map. | |
void | flash_area_close (const struct flash_area *fa) |
Close flash_area. | |
int | flash_area_read (const struct flash_area *fa, off_t off, void *dst, size_t len) |
Read flash area data. | |
int | flash_area_write (const struct flash_area *fa, off_t off, const void *src, size_t len) |
Write data to flash area. | |
int | flash_area_erase (const struct flash_area *fa, off_t off, size_t len) |
Erase flash area. | |
int | flash_area_flatten (const struct flash_area *fa, off_t off, size_t len) |
Erase flash area or fill with erase-value. | |
uint32_t | flash_area_align (const struct flash_area *fa) |
Get write block size of the flash area. | |
int | flash_area_get_sectors (int fa_id, uint32_t *count, struct flash_sector *sectors) |
Retrieve info about sectors within the area. | |
void | flash_area_foreach (flash_area_cb_t user_cb, void *user_data) |
Iterate over flash map. | |
int | flash_area_has_driver (const struct flash_area *fa) |
Check whether given flash area has supporting flash driver in the system. | |
const struct device * | flash_area_get_device (const struct flash_area *fa) |
Get driver for given flash area. | |
uint8_t | flash_area_erased_val (const struct flash_area *fa) |
Get the value expected to be read when accessing any erased flash byte. | |
Public API for flash map.