Mark
41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
#pragma once
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#include "sys/block/cache.h"
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#include "sys/types.h"
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#define BLK_CACHE (1 << 1)
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#define BLK_BUSY (1 << 0)
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struct vnode;
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struct ofile;
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struct blkdev {
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uint32_t flags;
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size_t block_size;
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struct block_cache cache;
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void *dev_data;
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ssize_t (*read) (struct blkdev *blk, void *buf, size_t off, size_t count);
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ssize_t (*write) (struct blkdev *blk, const void *buf, size_t off, size_t count);
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int (*ioctl) (struct blkdev *blk, unsigned long req, void *ptr);
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int (*mmap)(struct blkdev *blk, uintptr_t base, size_t page_count, int prot, int flags);
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void (*destroy) (struct blkdev *blk);
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};
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void blk_set_cache(struct blkdev *blk, size_t capacity);
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void blk_cache_release(struct blkdev *blk);
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void blk_sync(struct blkdev *blk);
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int blk_page_sync(struct blkdev *blk, uintptr_t address, uintptr_t page);
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void blk_sync_all(void);
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int blk_mmap(struct blkdev *blk, uintptr_t base, size_t page_count, int prot, int flags);
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ssize_t blk_read(struct blkdev *blk, void *buf, size_t off, size_t count);
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ssize_t blk_write(struct blkdev *blk, const void *buf, size_t off, size_t count);
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int blk_ioctl(struct blkdev *blk, unsigned long req, void *ptr);
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int blk_mount_auto(struct vnode *at, struct blkdev *blkdev, uint32_t flags, const char *opt);
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int blk_add_part(struct vnode *of, int n, uint64_t lba, uint64_t size);
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int blk_enumerate_partitions(struct blkdev *blk, struct vnode *node);
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