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41 | ingob | 1 | #ifndef _FAT16_H |
2 | #define _FAT16_H |
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1 | ingob | 3 | |
4 | |||
5 | //________________________________________________________________________________________________________________________________________ |
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6 | // |
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41 | ingob | 7 | // Definitions |
1 | ingob | 8 | // |
9 | //________________________________________________________________________________________________________________________________________ |
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10 | |||
41 | ingob | 11 | //#define __USE_TIME_DATE_ATTRIBUTE |
211 | killagreg | 12 | #define FILE_MAX_OPEN 4 // The number of files that can accessed simultaneously. |
41 | ingob | 13 | #define SEEK_SET 0 |
14 | #define SEEK_CUR 1 |
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15 | #define SEEK_END 2 |
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16 | #define EOF (-1) |
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17 | #define BYTES_PER_SECTOR 512 |
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18 | /* |
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19 | ________________________________________________________________________________________________________________________________________ |
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20 | |||
21 | Structure of a filepointer |
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22 | ________________________________________________________________________________________________________________________________________ |
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23 | */ |
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24 | typedef struct |
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24 | StephanB | 25 | { |
41 | ingob | 26 | u32 FirstSectorOfFirstCluster; // First sector of the first cluster of the file. |
27 | u32 FirstSectorOfCurrCluster; // First sector of the cluster which is edited at the moment. |
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28 | u8 SectorOfCurrCluster; // The sector within the current cluster. |
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29 | u16 ByteOfCurrSector; // The byte location within the current sector. |
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30 | u8 Mode; // Mode of fileoperation (read,write) |
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31 | u32 Size; // The size of the opend file in bytes. |
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32 | u32 Position; // Pointer to a character within the file 0 < fileposition < filesize |
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33 | u32 DirectorySector; // the sectorposition where the directoryentry has been made. |
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34 | u16 DirectoryIndex; // The index to the directoryentry within the specified sector. |
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35 | u8 Attribute; // The attribute of the file opened. |
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36 | u8 Cache[BYTES_PER_SECTOR]; // Cache for read and write operation from or to the sd-card. |
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37 | u32 SectorInCache; // The last sector read, which is still in the sector cache. |
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38 | u8 State; // State of the filepointer (used/unused/...) |
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39 | } File_t; |
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1 | ingob | 40 | |
41 | //________________________________________________________________________________________________________________________________________ |
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42 | // |
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43 | // API to the FAT16 filesystem |
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44 | // |
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45 | //________________________________________________________________________________________________________________________________________ |
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46 | |||
41 | ingob | 47 | u8 Fat16_Init(void); |
48 | u8 Fat16_Deinit(void); |
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90 | killagreg | 49 | u8 Fat16_IsValid(void); |
210 | killagreg | 50 | s8* FAT16_GetVolumeLabel(void); |
89 | killagreg | 51 | |
52 | File_t *fopen_(s8 * const filename, const s8 mode); |
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41 | ingob | 53 | s16 fclose_(File_t *file); |
89 | killagreg | 54 | u8 fexist_(s8 * const filename); |
55 | s16 fflush_(File_t * const file); |
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56 | s16 fseek_(File_t * const file, s32 offset, s16 origin); |
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57 | s16 fgetc_(File_t * const file); |
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58 | s16 fputc_(s8 c, File_t * const file); |
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59 | u32 fread_(void *buffer, u32 size, u32 count, File_t * const file); |
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60 | u32 fwrite_(void *buffer, u32 size, u32 count, File_t * const file); |
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90 | killagreg | 61 | s16 fputs_(s8 * const string, File_t * const file); |
89 | killagreg | 62 | s8 * fgets_(s8 * const string, s16 length, File_t * const file); |
63 | u8 feof_(File_t * const file); |
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1 | ingob | 64 | |
24 | StephanB | 65 | |
66 | |||
41 | ingob | 67 | #endif //_FAT16_H |
1 | ingob | 68 | |
69 | |||
70 | |||
71 |