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31 | */ |
31 | */ |
32 | 32 | ||
33 | #ifndef FAT_FAT_FAT_H_ |
33 | #ifndef FAT_FAT_FAT_H_ |
34 | #define FAT_FAT_FAT_H_ |
34 | #define FAT_FAT_FAT_H_ |
35 | 35 | ||
- | 36 | #include "../../vfs/vfs.h" |
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- | 37 | #include <stdint.h> |
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- | 38 | ||
- | 39 | #define FAT1 0 |
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- | 40 | ||
- | 41 | #define FAT_CLST_RES0 0x0000 |
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- | 42 | #define FAT_CLST_RES1 0x0001 |
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- | 43 | #define FAT_CLST_FIRST 0x0002 |
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- | 44 | #define FAT_CLST_BAD 0xfff7 |
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- | 45 | #define FAT_CLST_LAST1 0xfff8 |
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- | 46 | #define FAT_CLST_LAST8 0xffff |
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- | 47 | ||
- | 48 | /* internally used to mark root directory's parent */ |
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- | 49 | #define FAT_CLST_ROOTPAR FAT_CLST_RES0 |
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- | 50 | /* internally used to mark root directory */ |
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- | 51 | #define FAT_CLST_ROOT FAT_CLST_RES1 |
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- | 52 | ||
- | 53 | ||
- | 54 | /* forward declarations */ |
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- | 55 | struct block; |
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- | 56 | struct fat_node; |
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- | 57 | ||
- | 58 | typedef uint16_t fat_cluster_t; |
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- | 59 | ||
- | 60 | #define fat_block_get(np, off) \ |
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- | 61 | _fat_block_get((np)->idx->dev_handle, (np)->firstc, (off)) |
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- | 62 | ||
- | 63 | extern struct block *_fat_block_get(dev_handle_t, fat_cluster_t, off_t); |
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- | 64 | extern uint16_t _fat_blcks_get(dev_handle_t, fat_cluster_t); |
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- | 65 | extern uint16_t fat_bps_get(dev_handle_t); |
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- | 66 | ||
- | 67 | extern void fat_append_clusters(struct fat_node *, fat_cluster_t); |
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- | 68 | extern int fat_alloc_clusters(dev_handle_t, unsigned, fat_cluster_t *, |
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- | 69 | fat_cluster_t *); |
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- | 70 | extern void fat_alloc_shadow_clusters(dev_handle_t, fat_cluster_t *, unsigned); |
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- | 71 | extern void fat_mark_cluster(dev_handle_t, unsigned, fat_cluster_t, |
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- | 72 | fat_cluster_t); |
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- | 73 | extern void fat_fill_gap(struct fat_node *, fat_cluster_t, off_t); |
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- | 74 | ||
36 | #endif |
75 | #endif |
37 | 76 | ||
38 | /** |
77 | /** |
39 | * @} |
78 | * @} |
40 | */ |
79 | */ |