1 #ifndef BDEV_H_

2 #define BDEV_H_

3

4 #include "fs.h" /* for dev_t */

5

6 /* TODO buffer cache */

7

8 struct block_device {

9 int ata_dev;

10 uint32_t offset, size;

11

12 /* Partition type (if the blkdev is a partition), otherwise 0.

13 * Used as just an extra sanity check to make sure we don't

14 * try to mount the wrong filesystem.

15 */

16 int ptype;

17 };

18

19 struct block_device *blk_open(dev_t dev);

20 void blk_close(struct block_device *bdev);

21

22 int blk_read(struct block_device *bdev, uint32_t blk, int count, void *buf);

23 int blk_write(struct block_device *bdev, uint32_t blk, int count, void *buf);

24

25 dev_t bdev_by_name(const char *name);

26

27 #endif /* BDEV_H_ */