Rev 368 | Rev 380 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 368 | Rev 379 | ||
|---|---|---|---|
| 1 | #ifndef _FAT16_H |
1 | #ifndef _FAT16_H |
| 2 | #define _FAT16_H |
2 | #define _FAT16_H |
| 3 | 3 | ||
| 4 | 4 | ||
| 5 | //________________________________________________________________________________________________________________________________________ |
5 | //________________________________________________________________________________________________________________________________________ |
| 6 | // |
6 | // |
| 7 | // Definitions |
7 | // Definitions |
| 8 | // |
8 | // |
| 9 | //________________________________________________________________________________________________________________________________________ |
9 | //________________________________________________________________________________________________________________________________________ |
| 10 | 10 | ||
| 11 | //#define __USE_TIME_DATE_ATTRIBUTE |
11 | //#define __USE_TIME_DATE_ATTRIBUTE |
| 12 | #define FILE_MAX_OPEN 4 // The number of files that can accessed simultaneously. |
12 | #define FILE_MAX_OPEN 4 // The number of files that can accessed simultaneously. |
| 13 | #define SEEK_SET 0 |
13 | #define SEEK_SET 0 |
| 14 | #define SEEK_CUR 1 |
14 | #define SEEK_CUR 1 |
| 15 | #define SEEK_END 2 |
15 | #define SEEK_END 2 |
| 16 | #define EOF (-1) |
16 | #define EOF (-1) |
| 17 | #define BYTES_PER_SECTOR 512 |
17 | #define BYTES_PER_SECTOR 512 |
| 18 | /* |
18 | /* |
| 19 | ________________________________________________________________________________________________________________________________________ |
19 | ________________________________________________________________________________________________________________________________________ |
| 20 | |
20 | |
| 21 | Structure of a filepointer |
21 | Structure of a filepointer |
| 22 | ________________________________________________________________________________________________________________________________________ |
22 | ________________________________________________________________________________________________________________________________________ |
| 23 | */ |
23 | */ |
| 24 | typedef struct |
24 | typedef struct |
| 25 | { |
25 | { |
| 26 | u32 FirstSectorOfFirstCluster; // First sector of the first cluster of the file. |
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. |
27 | u32 FirstSectorOfCurrCluster; // First sector of the cluster which is edited at the moment. |
| 28 | u8 SectorOfCurrCluster; // The sector within the current cluster. |
28 | u8 SectorOfCurrCluster; // The sector within the current cluster. |
| 29 | u16 ByteOfCurrSector; // The byte location within the current sector. |
29 | u16 ByteOfCurrSector; // The byte location within the current sector. |
| 30 | u8 Mode; // Mode of fileoperation (read,write) |
30 | u8 Mode; // Mode of fileoperation (read,write) |
| 31 | u32 Size; // The size of the opend file in bytes. |
31 | u32 Size; // The size of the opend file in bytes. |
| 32 | u32 Position; // Pointer to a character within the file 0 < fileposition < filesize |
32 | u32 Position; // Pointer to a character within the file 0 < fileposition < filesize |
| 33 | u32 DirectorySector; // the sectorposition where the directoryentry has been made. |
33 | u32 DirectorySector; // the sectorposition where the directoryentry has been made. |
| 34 | u16 DirectoryIndex; // The index to the directoryentry within the specified sector. |
34 | u16 DirectoryIndex; // The index to the directoryentry within the specified sector. |
| 35 | u8 Attribute; // The attribute of the file opened. |
35 | u8 Attribute; // The attribute of the file opened. |
| 36 | u8 Cache[BYTES_PER_SECTOR]; // Cache for read and write operation from or to the sd-card. |
36 | u8 Cache[BYTES_PER_SECTOR]; // Cache for read and write operation from or to the sd-card. |
| 37 | u32 SectorInCache; // The last sector read, which is still in the sector cache. |
37 | u32 SectorInCache; // The last sector read, which is still in the sector cache. |
| 38 | u8 State; // State of the filepointer (used/unused/...) |
38 | u8 State; // State of the filepointer (used/unused/...) |
| 39 | } File_t; |
39 | } File_t; |
| - | 40 | ||
| - | 41 | ||
| - | 42 | #define ATTR_NONE 0x00 // normal file |
|
| - | 43 | #define ATTR_READONLY 0x01 // file is readonly |
|
| - | 44 | #define ATTR_HIDDEN 0x02 // file is hidden |
|
| - | 45 | #define ATTR_SYSTEM 0x04 // file is a system file |
|
| - | 46 | #define ATTR_VOLUMELABEL 0x08 // entry is a volume label |
|
| - | 47 | #define ATTR_LONG_FILENAME 0x0F // this is a long filename entry |
|
| - | 48 | #define ATTR_SUBDIRECTORY 0x10 // entry is a directory name |
|
| - | 49 | #define ATTR_ARCHIVE 0x20 // file is new or modified |
|
| - | 50 | #define ATTR_ANY_FILE 0x3F // all files |
|
| - | 51 | ||
| - | 52 | ||
| - | 53 | ||
| - | 54 | //________________________________________________________________________________________________________________________________________ |
|
| - | 55 | // |
|
| - | 56 | // Structure of an item used by functions findfirst and findnext |
|
| - | 57 | //________________________________________________________________________________________________________________________________________ |
|
| - | 58 | ||
| - | 59 | typedef struct |
|
| - | 60 | { |
|
| - | 61 | File_t fp; // filepointer used to get access to the filesystemstructure |
|
| - | 62 | s8 searchstring[11]; // findfirst and findnext will only return elements within the specified directory matching this searchstring. |
|
| - | 63 | s8 name[13]; // the name of the element found within the specified directory |
|
| - | 64 | u8 active; // if the attribute active is set the name and the attributes of an element found within DirectoryEntryExist will be entered into the structure |
|
| - | 65 | u8 attribfilter; |
|
| - | 66 | u8 attribmask; |
|
| 40 | 67 | } __attribute__((packed)) Find_t; |
|
| 41 | 68 | ||
| 42 | //________________________________________________________________________________________________________________________________________ |
69 | //________________________________________________________________________________________________________________________________________ |
| 43 | // |
70 | // |
| 44 | // API to the FAT16 filesystem |
71 | // API to the FAT16 filesystem |
| 45 | // |
72 | // |
| 46 | //________________________________________________________________________________________________________________________________________ |
73 | //________________________________________________________________________________________________________________________________________ |
| 47 | 74 | ||
| 48 | u8 Fat16_Init(void); |
75 | u8 Fat16_Init(void); |
| 49 | u8 Fat16_Deinit(void); |
76 | u8 Fat16_Deinit(void); |
| 50 | u8 Fat16_IsValid(void); |
77 | u8 Fat16_IsValid(void); |
| 51 | s8* FAT16_GetVolumeLabel(void); |
78 | s8* FAT16_GetVolumeLabel(void); |
| 52 | 79 | ||
| 53 | File_t *fopen_(s8 * const filename, const s8 mode); |
80 | File_t *fopen_(s8 * const filename, const s8 mode); |
| 54 | s16 fclose_(File_t *file); |
81 | s16 fclose_(File_t *file); |
| 55 | u8 fexist_(s8 * const filename); |
82 | u8 fexist_(s8 * const filename); |
| 56 | s16 fflush_(File_t * const file); |
83 | s16 fflush_(File_t * const file); |
| 57 | s16 fseek_(File_t * const file, s32 offset, s16 origin); |
84 | s16 fseek_(File_t * const file, s32 offset, s16 origin); |
| 58 | s16 fgetc_(File_t * const file); |
85 | s16 fgetc_(File_t * const file); |
| 59 | s16 fputc_(s8 c, File_t * const file); |
86 | s16 fputc_(s8 c, File_t * const file); |
| 60 | u32 fread_(void *buffer, u32 size, u32 count, File_t * const file); |
87 | u32 fread_(void *buffer, u32 size, u32 count, File_t * const file); |
| 61 | u32 fwrite_(void *buffer, u32 size, u32 count, File_t * const file); |
88 | u32 fwrite_(void *buffer, u32 size, u32 count, File_t * const file); |
| 62 | s16 fputs_(s8 * const string, File_t * const file); |
89 | s16 fputs_(s8 * const string, File_t * const file); |
| 63 | s8 * fgets_(s8 * const string, s16 length, File_t * const file); |
90 | s8 * fgets_(s8 * const string, s16 length, File_t * const file); |
| 64 | u8 feof_(File_t * const file); |
91 | u8 feof_(File_t * const file); |
| - | 92 | u8 findfirst_(const s8* name, u8 attribmask, Find_t *); |
|
| - | 93 | u8 findnext_(Find_t *); |
|
| - | 94 | u8 chdir_(s8 *folder); |
|
| - | 95 | s8 *GetPath(void); |
|
| - | 96 | ||
| 65 | 97 | ||
| 66 | 98 | ||
| 67 | 99 | ||
| 68 | #endif //_FAT16_H |
100 | #endif //_FAT16_H |
| 69 | 101 | ||
| 70 | 102 | ||
| 71 | 103 | ||
| 72 | 104 | ||
| 73 | 105 | ||