114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
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/*++
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Copyright (c) 1991 - 1993 Microsoft Corporation
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Module Name:
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memcard.h
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Abstract:
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Author:
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Neil Sandlin (neilsa) 26-Apr-99
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Environment:
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Kernel mode only.
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Notes:
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--*/
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#ifndef _MEMCARD_H_
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#define _MEMCARD_H_
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#ifdef POOL_TAGGING
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#ifdef ExAllocatePool
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#undef ExAllocatePool
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#endif
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#define ExAllocatePool(a,b) ExAllocatePoolWithTag(a,b,'cmeM')
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#endif
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//
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// The byte in the boot sector that specifies the type of media, and
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// the values that it can assume. We can often tell what type of media
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// is in the drive by seeing which controller parameters allow us to read
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// the diskette, but some different densities are readable with the same
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// parameters so we use this byte to decide the media type.
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//
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#pragma pack(1)
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typedef struct _BOOT_SECTOR_INFO {
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UCHAR JumpByte;
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UCHAR Ignore1[2];
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UCHAR OemData[8];
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USHORT BytesPerSector;
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UCHAR SectorsPerCluster;
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USHORT ReservedSectors;
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UCHAR NumberOfFATs;
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USHORT RootEntries;
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USHORT TotalSectors;
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UCHAR MediaDescriptor;
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USHORT SectorsPerFAT;
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USHORT SectorsPerTrack;
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USHORT Heads;
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ULONG BigHiddenSectors;
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ULONG BigTotalSectors;
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} BOOT_SECTOR_INFO, *PBOOT_SECTOR_INFO;
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#pragma pack()
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//
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// Runtime device structures
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//
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//
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// There is one MEMCARD_EXTENSION attached to the device object of each
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// MEMCARDpy drive. Only data directly related to that drive (and the media
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// in it) is stored here; common data is in CONTROLLER_DATA. So the
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// MEMCARD_EXTENSION has a pointer to the CONTROLLER_DATA.
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//
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typedef struct _MEMCARD_EXTENSION {
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PDEVICE_OBJECT UnderlyingPDO;
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PDEVICE_OBJECT TargetObject;
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PDEVICE_OBJECT DeviceObject;
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UNICODE_STRING DeviceName;
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UNICODE_STRING LinkName;
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UNICODE_STRING InterfaceString;
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ULONG MediaIndex;
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ULONG ByteCapacity;
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BOOLEAN IsStarted;
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BOOLEAN IsRemoved;
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BOOLEAN IsMemoryMapped;
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BOOLEAN NoDrive;
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ULONGLONG HostBase;
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PCHAR MemoryWindowBase;
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ULONG MemoryWindowSize;
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ULONG TechnologyIndex;
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PCMCIA_INTERFACE_STANDARD PcmciaInterface;
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PCMCIA_BUS_INTERFACE_STANDARD PcmciaBusInterface;
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} MEMCARD_EXTENSION, *PMEMCARD_EXTENSION;
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//
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// macros for ReadWriteMemory
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//
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#define MEMCARD_READ(Extension, Offset, Buffer, Size) \
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MemCardReadWrite(Extension, Offset, Buffer, Size, FALSE)
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#define MEMCARD_WRITE(Extension, Offset, Buffer, Size) \
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MemCardReadWrite(Extension, Offset, Buffer, Size, TRUE)
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#endif // _MEMCARD_H_
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