Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1704 | - | 1 | #ifndef _FAT16_H |
| 2 | #define _FAT16_H |
||
| 3 | |||
| 4 | |||
| 5 | //________________________________________________________________________________________________________________________________________ |
||
| 6 | // |
||
| 7 | // Definitions |
||
| 8 | // |
||
| 9 | //________________________________________________________________________________________________________________________________________ |
||
| 10 | |||
| 11 | //#define __USE_TIME_DATE_ATTRIBUTE |
||
| 12 | #define FILE_MAX_OPEN 3 // The number of files that can accessed simultaneously. |
||
| 13 | #define SEEK_SET 0 |
||
| 14 | #define SEEK_CUR 1 |
||
| 15 | #define SEEK_END 2 |
||
| 16 | #define EOF (-1) |
||
| 17 | #define BYTES_PER_SECTOR 512 |
||
| 18 | /* |
||
| 19 | ________________________________________________________________________________________________________________________________________ |
||
| 20 | |||
| 21 | Structure of a filepointer |
||
| 22 | ________________________________________________________________________________________________________________________________________ |
||
| 23 | */ |
||
| 24 | typedef struct |
||
| 25 | { |
||
| 26 | uint32_t FirstSectorOfFirstCluster; // First sector of the first cluster of the file. |
||
| 27 | uint32_t FirstSectorOfCurrCluster; // First sector of the cluster which is edited at the moment. |
||
| 28 | uint8_t SectorOfCurrCluster; // The sector within the current cluster. |
||
| 29 | uint16_t ByteOfCurrSector; // The byte location within the current sector. |
||
| 30 | uint8_t Mode; // Mode of fileoperation (read,write) |
||
| 31 | uint32_t Size; // The size of the opend file in bytes. |
||
| 32 | uint32_t Position; // Pointer to a character within the file 0 < fileposition < filesize |
||
| 33 | uint32_t DirectorySector; // the sectorposition where the directoryentry has been made. |
||
| 34 | uint16_t DirectoryIndex; // The index to the directoryentry within the specified sector. |
||
| 35 | uint8_t Attribute; // The attribute of the file opened. |
||
| 36 | uint8_t Cache[BYTES_PER_SECTOR]; // Cache for read and write operation from or to the sd-card. |
||
| 37 | uint32_t SectorInCache; // The last sector read, which is still in the sector cache. |
||
| 38 | uint8_t State; // State of the filepointer (used/unused/...) |
||
| 39 | } File_t; |
||
| 40 | |||
| 41 | //________________________________________________________________________________________________________________________________________ |
||
| 42 | // |
||
| 43 | // API to the FAT16 filesystem |
||
| 44 | // |
||
| 45 | //________________________________________________________________________________________________________________________________________ |
||
| 46 | |||
| 47 | extern uint8_t Fat16_Init(void); |
||
| 48 | extern uint8_t Fat16_Deinit(void); |
||
| 49 | extern uint8_t Fat16_IsValid(void); |
||
| 50 | |||
| 51 | extern File_t * fopen_(int8_t * const filename, const int8_t mode); |
||
| 52 | extern int16_t fclose_(File_t *file); |
||
| 53 | extern uint8_t fexist_(int8_t * const filename); |
||
| 54 | extern int16_t fflush_(File_t * const file); |
||
| 55 | extern int16_t fseek_(File_t * const file, int32_t offset, int16_t origin); |
||
| 56 | extern int16_t fgetc_(File_t * const file); |
||
| 57 | extern int16_t fputc_(const int8_t c, File_t * const file); |
||
| 58 | extern uint32_t fread_(void * const buffer, uint32_t size, uint32_t count, File_t * const file); |
||
| 59 | extern uint32_t fwrite_(void *buffer, uint32_t size, uint32_t count, File_t *file); |
||
| 60 | extern int16_t fputs_(int8_t * const string, File_t * const file); |
||
| 61 | extern int8_t * fgets_(int8_t * const string, const int16_t length, File_t * const file); |
||
| 62 | extern uint8_t feof_(File_t * const file); |
||
| 63 | |||
| 64 | |||
| 65 | |||
| 66 | #endif //_FAT16_H |
||
| 67 | |||
| 68 | |||
| 69 | |||
| 70 |