You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.3 KiB
52 lines
1.3 KiB
#pragma once
|
|
|
|
#include <macros.h>
|
|
|
|
struct ftl_page_group {
|
|
uint8_t magic[3];
|
|
uint8_t epoch;
|
|
uint32_t tail;
|
|
} __attribute__((packed));
|
|
|
|
struct ftl_page_desc {
|
|
uint32_t va;
|
|
uint32_t nused_pages;
|
|
uint32_t subtrees[32];
|
|
} __attribute__((packed));
|
|
|
|
struct ftl_map {
|
|
struct flash_dev *dev;
|
|
unsigned flags;
|
|
uint32_t last_va;
|
|
uint32_t last_pa;
|
|
uint32_t offset;
|
|
uint32_t head, tail;
|
|
uint32_t root;
|
|
uint32_t nused_pages;
|
|
uint32_t nblocks;
|
|
uint8_t log2_groups_per_block;
|
|
uint8_t log2_pages_per_group;
|
|
uint8_t log2_page_size;
|
|
uint8_t log2_block_size;
|
|
uint8_t log2_erase_size;
|
|
uint8_t epoch;
|
|
};
|
|
|
|
#define FTL_CACHED_VA BIT(0)
|
|
#define FTL_UNMAPPED BIT(1)
|
|
#define FTL_DIRTY BIT(2)
|
|
|
|
#define FTL_MAX_ATTEMPTS 8
|
|
|
|
int ftl_init_map(struct ftl_map *map, struct flash_dev *dev);
|
|
int ftl_resume_map(struct ftl_map *map);
|
|
int ftl_is_mapped(struct ftl_map *map, uint32_t va);
|
|
size_t ftl_write(struct ftl_map *map, uint32_t addr, const void *data,
|
|
size_t len);
|
|
size_t ftl_read(struct ftl_map *map, void *data, size_t len, uint32_t va);
|
|
int ftl_sync(struct ftl_map *map);
|
|
int ftl_trim(struct ftl_map *map, uint32_t va);
|
|
uint32_t ftl_get_size(const struct ftl_map *map);
|
|
uint32_t ftl_get_capacity(const struct ftl_map *map);
|
|
|
|
struct flash_dev *ftl_mount(struct flash_dev *raw_dev);
|
|
|