alexvoste
38 lines
1.0 KiB
C
38 lines
1.0 KiB
C
#ifndef BLKDEV_H
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#define BLKDEV_H
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#define BLKDEV_MAX 8
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#define BLKDEV_NAME_MAX 32
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#define BLKDEV_SECTOR_SIZE 512
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typedef struct blkdev blkdev_t;
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typedef struct blkdev_ops {
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int (*read_sectors) (blkdev_t *dev, uint64_t lba, uint32_t count, void *buf);
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int (*write_sectors)(blkdev_t *dev, uint64_t lba, uint32_t count, const void *buf);
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int (*flush) (blkdev_t *dev);
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} blkdev_ops_t;
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struct blkdev {
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char name[BLKDEV_NAME_MAX];
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bool present;
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uint64_t sector_count;
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uint64_t size_bytes;
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uint32_t sector_size;
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const blkdev_ops_t *ops;
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void *priv;
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};
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int blkdev_register(blkdev_t *dev);
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blkdev_t *blkdev_get_by_name(const char *name);
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blkdev_t *blkdev_get(int index);
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int blkdev_count(void);
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void blkdev_init(void);
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int blkdev_read(blkdev_t *dev, uint64_t offset, void *buf, size_t len);
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int blkdev_write(blkdev_t *dev, uint64_t offset, const void *buf, size_t len);
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#endif |