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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 |
| { |
| uint32_t FirstSectorOfFirstCluster; // First sector of the first cluster of the file. |
| uint32_t FirstSectorOfCurrCluster; // First sector of the cluster which is edited at the moment. |
| uint8_t SectorOfCurrCluster; // The sector within the current cluster. |
| uint16_t ByteOfCurrSector; // The byte location within the current sector. |
| uint8_t Mode; // Mode of fileoperation (read,write) |
| uint32_t Size; // The size of the opend file in bytes. |
| uint32_t Position; // Pointer to a character within the file 0 < fileposition < filesize |
| uint32_t DirectorySector; // the sectorposition where the directoryentry has been made. |
| uint16_t DirectoryIndex; // The index to the directoryentry within the specified sector. |
| uint8_t Attribute; // The attribute of the file opened. |
| uint8_t Cache[BYTES_PER_SECTOR]; // Cache for read and write operation from or to the sd-card. |
| uint32_t SectorInCache; // The last sector read, which is still in the sector cache. |
| uint8_t State; // State of the filepointer (used/unused/...) |
| } File_t; |
| |
| //________________________________________________________________________________________________________________________________________ |
| // |
| // API to the FAT16 filesystem |
| // |
| //________________________________________________________________________________________________________________________________________ |
| |
| extern uint8_t Fat16_Init(void); |
| extern uint8_t Fat16_Deinit(void); |
| extern uint8_t Fat16_IsValid(void); |
| |
| extern File_t * fopen_(int8_t * const filename, const int8_t mode); |
| extern int16_t fclose_(File_t *file); |
| extern uint8_t fexist_(int8_t * const filename); |
| extern int16_t fflush_(File_t * const file); |
| extern int16_t fseek_(File_t * const file, int32_t offset, int16_t origin); |
| extern int16_t fgetc_(File_t * const file); |
| extern int16_t fputc_(const int8_t c, File_t * const file); |
| extern uint32_t fread_(void * const buffer, uint32_t size, uint32_t count, File_t * const file); |
| extern uint32_t fwrite_(void *buffer, uint32_t size, uint32_t count, File_t *file); |
| extern int16_t fputs_(int8_t * const string, File_t * const file); |
| extern int8_t * fgets_(int8_t * const string, const int16_t length, File_t * const file); |
| extern uint8_t feof_(File_t * const file); |
| |
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| |
| #endif //_FAT16_H |
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