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@ -22,6 +22,8 @@
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#ifndef SdFatStructs_h
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#ifndef SdFatStructs_h
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#define SdFatStructs_h
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#define SdFatStructs_h
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#define PACKED __attribute__((__packed__))
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/**
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/**
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* \file
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* \file
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* \brief FAT file structures
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* \brief FAT file structures
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@ -95,7 +97,7 @@ struct partitionTable {
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uint32_t firstSector;
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uint32_t firstSector;
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/** Length of the partition, in blocks. */
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/** Length of the partition, in blocks. */
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uint32_t totalSectors;
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uint32_t totalSectors;
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};
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} PACKED;
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/** Type name for partitionTable */
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/** Type name for partitionTable */
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typedef struct partitionTable part_t;
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typedef struct partitionTable part_t;
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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@ -119,7 +121,7 @@ struct masterBootRecord {
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uint8_t mbrSig0;
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uint8_t mbrSig0;
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/** Second MBR signature byte. Must be 0XAA */
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/** Second MBR signature byte. Must be 0XAA */
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uint8_t mbrSig1;
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uint8_t mbrSig1;
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};
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} PACKED;
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/** Type name for masterBootRecord */
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/** Type name for masterBootRecord */
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typedef struct masterBootRecord mbr_t;
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typedef struct masterBootRecord mbr_t;
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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@ -247,7 +249,7 @@ struct fat_boot {
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uint8_t bootSectorSig0;
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uint8_t bootSectorSig0;
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/** must be 0XAA */
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/** must be 0XAA */
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uint8_t bootSectorSig1;
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uint8_t bootSectorSig1;
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};
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} PACKED;
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/** Type name for FAT Boot Sector */
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/** Type name for FAT Boot Sector */
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typedef struct fat_boot fat_boot_t;
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typedef struct fat_boot fat_boot_t;
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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@ -401,7 +403,7 @@ struct fat32_boot {
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uint8_t bootSectorSig0;
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uint8_t bootSectorSig0;
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/** must be 0XAA */
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/** must be 0XAA */
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uint8_t bootSectorSig1;
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uint8_t bootSectorSig1;
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};
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} PACKED;
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/** Type name for FAT32 Boot Sector */
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/** Type name for FAT32 Boot Sector */
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typedef struct fat32_boot fat32_boot_t;
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typedef struct fat32_boot fat32_boot_t;
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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@ -441,7 +443,7 @@ struct fat32_fsinfo {
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uint8_t reserved2[12];
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uint8_t reserved2[12];
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/** must be 0X00, 0X00, 0X55, 0XAA */
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/** must be 0X00, 0X00, 0X55, 0XAA */
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uint8_t tailSignature[4];
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uint8_t tailSignature[4];
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};
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} PACKED;
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/** Type name for FAT32 FSINFO Sector */
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/** Type name for FAT32 FSINFO Sector */
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typedef struct fat32_fsinfo fat32_fsinfo_t;
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typedef struct fat32_fsinfo fat32_fsinfo_t;
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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@ -539,12 +541,46 @@ struct directoryEntry {
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uint16_t firstClusterLow;
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uint16_t firstClusterLow;
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/** 32-bit unsigned holding this file's size in bytes. */
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/** 32-bit unsigned holding this file's size in bytes. */
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uint32_t fileSize;
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uint32_t fileSize;
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};
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} PACKED;
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/**
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* \struct directoryVFATEntry
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* \brief VFAT long filename directory entry
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*
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* directoryVFATEntries are found in the same list as normal directoryEntry.
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* But have the attribute field set to DIR_ATT_LONG_NAME.
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*
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* Long filenames are saved in multiple directoryVFATEntries.
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* Each entry containing 13 UTF-16 characters.
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*/
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struct directoryVFATEntry {
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/**
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* Sequence number. Consists of 2 parts:
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* bit 6: indicates first long filename block for the next file
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* bit 0-4: the position of this long filename block (first block is 1)
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*/
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uint8_t sequenceNumber;
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/** First set of UTF-16 characters */
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uint16_t name1[5];//UTF-16
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/** attributes (at the same location as in directoryEntry), always 0x0F */
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uint8_t attributes;
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/** Reserved for use by Windows NT. Always 0. */
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uint8_t reservedNT;
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/** Checksum of the short 8.3 filename, can be used to checked if the file system as modified by a not-long-filename aware implementation. */
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uint8_t checksum;
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/** Second set of UTF-16 characters */
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uint16_t name2[6];//UTF-16
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/** firstClusterLow is always zero for longFilenames */
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uint16_t firstClusterLow;
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/** Third set of UTF-16 characters */
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uint16_t name3[2];//UTF-16
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} PACKED;
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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// Definitions for directory entries
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// Definitions for directory entries
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//
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//
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/** Type name for directoryEntry */
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/** Type name for directoryEntry */
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typedef struct directoryEntry dir_t;
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typedef struct directoryEntry dir_t;
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/** Type name for directoryVFATEntry */
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typedef struct directoryVFATEntry vfat_t;
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/** escape for name[0] = 0XE5 */
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/** escape for name[0] = 0XE5 */
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uint8_t const DIR_NAME_0XE5 = 0X05;
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uint8_t const DIR_NAME_0XE5 = 0X05;
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/** name[0] value for entry that is free after being "deleted" */
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/** name[0] value for entry that is free after being "deleted" */
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@ -607,4 +643,4 @@ static inline uint8_t DIR_IS_FILE_OR_SUBDIR(const dir_t* dir) {
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#endif // SdFatStructs_h
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#endif // SdFatStructs_h
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#endif
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#endif
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