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| #ifndef _FAT16_H |
| #define _FAT16_H |
| |
| |
| //________________________________________________________________________________________________________________________________________ |
| // |
| // Definitions |
| // |
| //________________________________________________________________________________________________________________________________________ |
| |
| //#define __USE_TIME_DATE_ATTRIBUTE |
| #define FILE_MAX_OPEN 3 // The number of files that can accessed simultaneously. |
| #define SEEK_SET 0 |
| #define SEEK_CUR 1 |
| #define SEEK_END 2 |
| #define EOF (-1) |
| #define BYTES_PER_SECTOR 512 |
| /* |
| ________________________________________________________________________________________________________________________________________ |
| |
| Structure of a filepointer |
| ________________________________________________________________________________________________________________________________________ |
| */ |
| typedef struct |
| { |
| u32 FirstSectorOfFirstCluster; // First sector of the first cluster of the file. |
| u32 FirstSectorOfCurrCluster; // First sector of the cluster which is edited at the moment. |
| u8 SectorOfCurrCluster; // The sector within the current cluster. |
| u16 ByteOfCurrSector; // The byte location within the current sector. |
| u8 Mode; // Mode of fileoperation (read,write) |
| u32 Size; // The size of the opend file in bytes. |
| u32 Position; // Pointer to a character within the file 0 < fileposition < filesize |
| u32 DirectorySector; // the sectorposition where the directoryentry has been made. |
| u16 DirectoryIndex; // The index to the directoryentry within the specified sector. |
| u8 Attribute; // The attribute of the file opened. |
| u8 Cache[BYTES_PER_SECTOR]; // Cache for read and write operation from or to the sd-card. |
| u32 SectorInCache; // The last sector read, which is still in the sector cache. |
| u8 State; // State of the filepointer (used/unused/...) |
| } File_t; |
| |
| //________________________________________________________________________________________________________________________________________ |
| // |
| // API to the FAT16 filesystem |
| // |
| //________________________________________________________________________________________________________________________________________ |
| |
| u8 Fat16_Init(void); |
| u8 Fat16_Deinit(void); |
| u8 Fat16_IsValid(void); |
| |
| File_t *fopen_(s8 * const filename, const s8 mode); |
| s16 fclose_(File_t *file); |
| u8 fexist_(s8 * const filename); |
| s16 fflush_(File_t * const file); |
| s16 fseek_(File_t * const file, s32 offset, s16 origin); |
| s16 fgetc_(File_t * const file); |
| s16 fputc_(s8 c, File_t * const file); |
| u32 fread_(void *buffer, u32 size, u32 count, File_t * const file); |
| u32 fwrite_(void *buffer, u32 size, u32 count, File_t * const file); |
| s16 fputs_(s8 * const string, File_t * const file); |
| s8 * fgets_(s8 * const string, s16 length, File_t * const file); |
| u8 feof_(File_t * const file); |
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| #endif //_FAT16_H |
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