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#ifndef DISK_H
#define DISK_H
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#define SECTOR_SHIFT 9
#define SECTOR_SIZE (1 << SECTOR_SHIFT)
typedef uint64_t sector_t;
typedef uint64_t block_t;
/*
* struct disk: contains the information about a specific disk and also
* contains the I/O function.
*/
struct disk {
uint8_t disk_number; /* in BIOS style */
uint8_t type; /* CHS or EDD */
uint16_t sector_size; /* gener512B or 2048B */
uint8_t sector_shift;
uint8_t h, s; /* CHS geometry */
uint8_t pad;
sector_t part_start; /* the start address of this partition(in sectors) */
int (*rdwr_sectors)(struct disk *, void *, sector_t, size_t, bool);
};
extern void read_sectors(char *, sector_t, int);
extern void getoneblk(struct disk *, char *, block_t, int);
/* diskio.c */
struct disk *disk_init(uint8_t, bool, sector_t, uint16_t, uint16_t);
struct device *device_init(uint8_t, bool, sector_t, uint16_t, uint16_t);
#endif /* DISK_H */
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