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