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#ifndef DRIVE_H
#define DRIVE_H
#include <stdbool.h>
#include <stdint.h>
typedef uint8_t file_id_t;
typedef uint8_t fs_id_t;
typedef uint8_t drive_id_t;
#define MAX_DRIVES 256
#define DCI_NAME_LEN 100
struct directory_content_info {
char name[DCI_NAME_LEN];
uint32_t size;
bool is_dir;
uint8_t pad[23];
} __attribute__ ((packed));
struct drive {
char *drive_type;
char *fs_type;
uint32_t (*read_sectors) (const struct drive *d, uint32_t start, uint32_t count, void *buffer);
uint32_t (*write_sectors)(const struct drive *d, uint32_t start, uint32_t count, const void *buffer);
void (*ready) (const struct drive *d);
void (*done) (const struct drive *d);
uint32_t n_sectors;
drive_id_t drive_id;
file_id_t (*get_file) (const struct drive *d, const char *path);
void (*free_file) (const struct drive *d, file_id_t fid);
void (*load_sector) (const struct drive *d, file_id_t fid, uint32_t sector, void *at);
void (*save_sector) (const struct drive *d, file_id_t fid, uint32_t sector, const void *from);
bool (*is_writable) (const struct drive *d, file_id_t fid);
uint32_t (*get_file_length) (const struct drive *d, file_id_t fid);
void (*set_file_length) (const struct drive *d, file_id_t fid, uint32_t new_len);
uint32_t (*enumerate_dir) (const struct drive *d, const char *path, struct directory_content_info *info, uint32_t max);
uint32_t (*n_dir_entries) (const struct drive *d, const char *path);
uint32_t (*get_free_sectors)(const struct drive *d);
fs_id_t fs_id;
};
extern uint8_t n_drives;
extern struct drive drives[MAX_DRIVES];
void init_drives();
void commit_drive(struct drive data);
extern bool ignore_already_open;
#endif
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