214 lines
4.3 KiB
C
214 lines
4.3 KiB
C
/*++
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Copyright (c) 1993 Microsoft Corporation
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Module Name:
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spdisk.h
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Abstract:
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Public header file for disk support module in text setup.
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Author:
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Ted Miller (tedm) 27-Aug-1993
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Revision History:
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--*/
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#ifndef _SPDISK_
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#define _SPDISK_
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//
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// The following will be TRUE if hard disks have been determined
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// successfully (ie, if SpDetermineHardDisks was successfully called).
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//
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extern BOOLEAN HardDisksDetermined;
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NTSTATUS
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SpDetermineHardDisks(
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IN PVOID SifHandle
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);
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NTSTATUS
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SpOpenPartition(
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IN PWSTR DiskDevicePath,
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IN ULONG PartitionNumber,
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OUT HANDLE *Handle,
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IN BOOLEAN NeedWriteAccess
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);
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#define SpOpenPartition0(path,handle,write) SpOpenPartition((path),0,(handle),(write))
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NTSTATUS
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SpReadWriteDiskSectors(
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IN HANDLE Handle,
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IN ULONGLONG SectorNumber,
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IN ULONG SectorCount,
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IN ULONG BytesPerSector,
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IN OUT PVOID AlignedBuffer,
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IN BOOLEAN Write
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);
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ULONG
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SpArcDevicePathToDiskNumber(
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IN PWSTR ArcPath
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);
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#define DISK_DEVICE_NAME_BASE L"\\device\\harddisk"
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//
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// Define enumerated type for possible states a hard disk can be in.
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//
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typedef enum {
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DiskOnLine,
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DiskOffLine
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} DiskStatus;
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//
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// Int13 hooker types.
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//
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typedef enum {
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NoHooker = 0,
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HookerEZDrive,
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HookerOnTrackDiskManager,
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HookerMax
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} Int13HookerType;
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//
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// Define per-disk structure used internally to track hard disks.
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//
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typedef struct _HARD_DISK {
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//
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// Cylinder count we got back from the i/o system.
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//
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ULONGLONG CylinderCount;
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//
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// Path in the NT namespace of the device.
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//
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WCHAR DevicePath[(sizeof(DISK_DEVICE_NAME_BASE)+sizeof(L"000"))/sizeof(WCHAR)];
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//
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// Geometry information.
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//
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DISK_GEOMETRY Geometry;
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ULONG SectorsPerCylinder;
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ULONGLONG DiskSizeSectors;
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ULONG DiskSizeMB;
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//
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// Characteristics of the device (remoavable, etc).
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//
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ULONG Characteristics;
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//
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// Status of the device.
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//
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DiskStatus Status;
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//
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// Human-readable description of the disk device.
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//
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WCHAR Description[256];
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//
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// If the disk is a scsi disk, then the shortname of the
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// scsi miniport driver is stored here. If this string
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// is empty, then the disk is not a scsi disk.
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//
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WCHAR ScsiMiniportShortname[24];
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//
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// scsi-style ARC path of the disk device if possible for the disk.
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// Empty string if not. This is used to translate between scsi-style ARC
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// NT names because the 'firmware' cannot see scsi devices without BIOSes
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// and so they do not appear in the arc disk info passed by the osloader.
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// (IE, there are no arc names in the system for such disks).
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//
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WCHAR ArcPath[128];
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//
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// Int13 hooker support (ie, EZDrive).
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//
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Int13HookerType Int13Hooker;
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//
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// This tells us whether the disk is PCMCIA or not.
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//
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BOOLEAN PCCard;
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//
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// Contains the signature of the disk. This is used during the
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// identification of FT partitions, on the upgrade case.
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//
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ULONG Signature;
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//
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// MBR type: formatted for PC/AT or NEC98.
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//
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UCHAR FormatType;
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//
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// Wether the disk completely free
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//
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BOOLEAN NewDisk;
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//
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// The drive information we read
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//
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DRIVE_LAYOUT_INFORMATION_EX DriveLayout;
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#if 0
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//
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// Number of partition tables (are different between PC/AT and NEC98).
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//
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USHORT MaxPartitionTables;
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#endif //0
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} HARD_DISK, *PHARD_DISK;
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#define DISK_FORMAT_TYPE_UNKNOWN 0x00
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#define DISK_FORMAT_TYPE_PCAT 0x01
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#define DISK_FORMAT_TYPE_NEC98 0x02
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#define DISK_FORMAT_TYPE_GPT 0x03
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#define DISK_FORMAT_TYPE_RAW 0x04
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#define DISK_TAG_TYPE_UNKNOWN L"[Unknown]"
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#define DISK_TAG_TYPE_PCAT L"[MBR]"
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#define DISK_TAG_TYPE_NEC98 L"[NEC98]"
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#define DISK_TAG_TYPE_GPT L"[GPT]"
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#define DISK_TAG_TYPE_RAW L"[Raw]"
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#define DISK_TAG_START_CHAR L'['
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extern WCHAR *DiskTags[];
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VOID
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SpAppendDiskTag(
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IN PHARD_DISK Disk
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);
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//
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// These two globals track the hard disks attached to the computer.
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//
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extern PHARD_DISK HardDisks;
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extern ULONG HardDiskCount;
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//
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// These flags get set to TRUE if we find any disks owned
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// by ATDISK or ABIOSDSK.
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//
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extern BOOLEAN AtDisksExist,AbiosDisksExist;
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#endif // ndef _SPDISK_
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