mirror of https://github.com/ArduPilot/ardupilot
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
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/*
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intermediate layer for FatFs
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*/
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#ifndef SdFatFs_h
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#define SdFatFs_h
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#include "Sd2Card.h"
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#include "stdio.h"
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#if defined(BOARD_SDCARD_CS_PIN) || defined(BOARD_DATAFLASH_FATFS)
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/* FatFs includes component */
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#include "FatFs/drivers/sd.h"
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#include "FatFs/ff.h"
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// To match Arduino definition
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#define FILE_WRITE FA_WRITE
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#define FILE_READ FA_READ
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/** year part of FAT directory date field */
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static inline uint16_t FAT_YEAR(uint16_t fatDate) {
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return 1980 + (fatDate >> 9);
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}
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/** month part of FAT directory date field */
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static inline uint8_t FAT_MONTH(uint16_t fatDate) {
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return (fatDate >> 5) & 0XF;
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}
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/** day part of FAT directory date field */
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static inline uint8_t FAT_DAY(uint16_t fatDate) {
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return fatDate & 0X1F;
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}
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/** hour part of FAT directory time field */
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static inline uint8_t FAT_HOUR(uint16_t fatTime) {
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return fatTime >> 11;
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}
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/** minute part of FAT directory time field */
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static inline uint8_t FAT_MINUTE(uint16_t fatTime) {
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return(fatTime >> 5) & 0X3F;
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}
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/** second part of FAT directory time field */
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static inline uint8_t FAT_SECOND(uint16_t fatTime) {
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return 2*(fatTime & 0X1F);
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}
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class SdFatFs {
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public:
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SdFatFs(){}
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FRESULT init(Sd2Card *card);
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/** Return the FatFs type: 12, 16, 32 (0: unknown)*/
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uint8_t fatType(void);
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// inline functions that return volume info
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/** \return The volume's cluster size in blocks. */
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uint8_t blocksPerCluster(void) const {return _SDFatFs.csize ? _SDFatFs.csize : blockSize();}
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/** \return The total number of clusters in the volume. */
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inline uint32_t clusterCount(void) const {return _SDFatFs.n_fatent? _SDFatFs.n_fatent -2:0;}
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// returns raw volume size
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inline uint32_t sectorCount(void) const { return _card->sectorCount(); }
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inline uint32_t sectorSize(void) const { return _card->sectorSize(); }
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inline uint32_t blockSize(void) const { return _card->blockSize(); }
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inline char* getRoot(void) { return _SDPath; };
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FRESULT format(const char *filepath, Sd2Card *card);
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static const char *strError(FRESULT err);
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private:
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FATFS _SDFatFs; /* File system object for SD disk logical drive */
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char _SDPath[4]; /* SD disk logical drive path */
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Sd2Card *_card;
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};
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#endif
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#endif // sdFatFs_h
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