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+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2013.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2013 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaims all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+#ifndef _VIRTUALFAT_H_
+#define _VIRTUALFAT_H_
+
+ /* Includes: */
+ #include <avr/io.h>
+ #include <avr/pgmspace.h>
+
+ #include <LUFA/Drivers/USB/USB.h>
+
+ /* Macros: */
+ #define VIRTUAL_MEMORY_BLOCK_SIZE 512
+ #define ALLOCATION_UNIT_BLOCKS 4
+ #define LUN_MEDIA_BLOCKS ((FLASHEND + 1) / VIRTUAL_MEMORY_BLOCK_SIZE) + 16
+
+ /* Type Definitions: */
+ typedef struct
+ {
+ uint8_t Bootstrap[3];
+ uint8_t Description[8];
+ uint16_t BlockSize;
+ uint8_t BlocksPerAllocationUnit;
+ uint16_t ReservedBlocks;
+ uint8_t FATCopies;
+ uint16_t RootDirectoryEntries;
+ uint16_t TotalBlocks16;
+ uint8_t MediaDescriptor;
+ uint16_t BlocksPerFAT;
+ uint16_t BlocksPerTrack;
+ uint16_t Heads;
+ uint32_t HiddenBlocks;
+ uint32_t TotalBlocks32;
+ uint16_t PhysicalDriveNum;
+ uint8_t ExtendedBootRecordSig;
+ uint32_t VolumeSerialNumber;
+ uint8_t VolumeLabel[11];
+ uint8_t FilesystemIdentifier[8];
+ uint8_t BootstrapProgram[448];
+ uint16_t MagicSignature;
+ } FATBootBlock_t;
+
+ typedef struct
+ {
+ uint8_t Filename[8];
+ uint8_t Extension[3];
+ uint8_t Attributes;
+ uint8_t Reserved[10];
+ uint16_t CreationTime;
+ uint16_t CreationDate;
+ uint16_t StartingCluster;
+ uint32_t FileSize;
+ } FATDirectoryEntry_t;
+
+ /* Function Prototypes: */
+ void VirtualFAT_WriteBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo,
+ const uint32_t BlockAddress,
+ uint16_t TotalBlocks);
+
+ void VirtualFAT_ReadBlocks(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo,
+ const uint32_t BlockAddress,
+ uint16_t TotalBlocks);
+#endif