Files
Aaru.Server/DiscImageChef.DiscImages/DriDiskCopy.cs

601 lines
26 KiB
C#

// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : DriDiskCopy.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Manages Digital Research's DISKCOPY disk images.
//
// --[ License ] --------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2018 Natalia Portillo
// ****************************************************************************/
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
using DiscImageChef.CommonTypes;
using DiscImageChef.Console;
using DiscImageChef.Filters;
namespace DiscImageChef.DiscImages
{
public class DriDiskCopy : ImagePlugin
{
const string REGEX_DRI = @"DiskImage\s(?<version>\d+.\d+)\s\(C\)\s\d+\,*\d*\s+Digital Research Inc";
/// <summary>Disk image file</summary>
Filter driImageFilter;
/// <summary>Footer of opened image</summary>
DriFooter footer;
public DriDiskCopy()
{
Name = "Digital Research DiskCopy";
PluginUuid = new Guid("9F0BE551-8BAB-4038-8B5A-691F1BF5FFF3");
ImageInfo = new ImageInfo
{
ReadableSectorTags = new List<SectorTagType>(),
ReadableMediaTags = new List<MediaTagType>(),
ImageHasPartitions = false,
ImageHasSessions = false,
ImageApplication = "DiskCopy",
ImageCreator = null,
ImageComments = null,
MediaManufacturer = null,
MediaModel = null,
MediaSerialNumber = null,
MediaBarcode = null,
MediaPartNumber = null,
MediaSequence = 0,
LastMediaSequence = 0,
DriveManufacturer = null,
DriveModel = null,
DriveSerialNumber = null,
DriveFirmwareRevision = null
};
}
public override bool IdentifyImage(Filter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
if((stream.Length - Marshal.SizeOf(typeof(DriFooter))) % 512 != 0) return false;
byte[] buffer = new byte[Marshal.SizeOf(typeof(DriFooter))];
stream.Seek(-buffer.Length, SeekOrigin.End);
stream.Read(buffer, 0, buffer.Length);
IntPtr ftrPtr = Marshal.AllocHGlobal(buffer.Length);
Marshal.Copy(buffer, 0, ftrPtr, buffer.Length);
DriFooter tmpFooter = (DriFooter)Marshal.PtrToStructure(ftrPtr, typeof(DriFooter));
Marshal.FreeHGlobal(ftrPtr);
string sig = StringHandlers.CToString(tmpFooter.signature);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.signature = \"{0}\"", sig);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.five = {0}", tmpFooter.bpb.five);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.driveCode = {0}", tmpFooter.bpb.driveCode);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.unknown = {0}", tmpFooter.bpb.unknown);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.cylinders = {0}", tmpFooter.bpb.cylinders);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.unknown2 = {0}", tmpFooter.bpb.unknown2);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.bps = {0}", tmpFooter.bpb.bps);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.spc = {0}", tmpFooter.bpb.spc);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.rsectors = {0}", tmpFooter.bpb.rsectors);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.fats_no = {0}", tmpFooter.bpb.fats_no);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.sectors = {0}", tmpFooter.bpb.sectors);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.media_descriptor = {0}",
tmpFooter.bpb.media_descriptor);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.spfat = {0}", tmpFooter.bpb.spfat);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.sptrack = {0}", tmpFooter.bpb.sptrack);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.heads = {0}", tmpFooter.bpb.heads);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.hsectors = {0}", tmpFooter.bpb.hsectors);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.drive_no = {0}", tmpFooter.bpb.drive_no);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.unknown3 = {0}", tmpFooter.bpb.unknown3);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.unknown4 = {0}", tmpFooter.bpb.unknown4);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.sptrack2 = {0}", tmpFooter.bpb.sptrack2);
DicConsole.DebugWriteLine("DRI DiskCopy plugin",
"ArrayHelpers.ArrayIsNullOrEmpty(tmp_footer.bpb.unknown5) = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(tmpFooter.bpb.unknown5));
Regex regexSignature = new Regex(REGEX_DRI);
Match matchSignature = regexSignature.Match(sig);
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "MatchSignature.Success? = {0}", matchSignature.Success);
if(!matchSignature.Success) return false;
if(tmpFooter.bpb.sptrack * tmpFooter.bpb.cylinders * tmpFooter.bpb.heads != tmpFooter.bpb.sectors)
return false;
return tmpFooter.bpb.sectors * tmpFooter.bpb.bps + Marshal.SizeOf(tmpFooter) == stream.Length;
}
public override bool OpenImage(Filter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
if((stream.Length - Marshal.SizeOf(typeof(DriFooter))) % 512 != 0) return false;
byte[] buffer = new byte[Marshal.SizeOf(typeof(DriFooter))];
stream.Seek(-buffer.Length, SeekOrigin.End);
stream.Read(buffer, 0, buffer.Length);
footer = new DriFooter();
IntPtr ftrPtr = Marshal.AllocHGlobal(buffer.Length);
Marshal.Copy(buffer, 0, ftrPtr, buffer.Length);
footer = (DriFooter)Marshal.PtrToStructure(ftrPtr, typeof(DriFooter));
Marshal.FreeHGlobal(ftrPtr);
string sig = StringHandlers.CToString(footer.signature);
Regex regexSignature = new Regex(REGEX_DRI);
Match matchSignature = regexSignature.Match(sig);
if(!matchSignature.Success) return false;
if(footer.bpb.sptrack * footer.bpb.cylinders * footer.bpb.heads != footer.bpb.sectors) return false;
if(footer.bpb.sectors * footer.bpb.bps + Marshal.SizeOf(footer) != stream.Length) return false;
ImageInfo.Cylinders = footer.bpb.cylinders;
ImageInfo.Heads = footer.bpb.heads;
ImageInfo.SectorsPerTrack = footer.bpb.sptrack;
ImageInfo.Sectors = footer.bpb.sectors;
ImageInfo.SectorSize = footer.bpb.bps;
ImageInfo.ImageApplicationVersion = matchSignature.Groups["version"].Value;
driImageFilter = imageFilter;
ImageInfo.ImageSize = (ulong)(stream.Length - Marshal.SizeOf(footer));
ImageInfo.ImageCreationTime = imageFilter.GetCreationTime();
ImageInfo.ImageLastModificationTime = imageFilter.GetLastWriteTime();
DicConsole.DebugWriteLine("DRI DiskCopy plugin", "Image application = {0} version {1}",
ImageInfo.ImageApplication, ImageInfo.ImageApplicationVersion);
// Correct some incorrect data in images of NEC 2HD disks
if(ImageInfo.Cylinders == 77 && ImageInfo.Heads == 2 && ImageInfo.SectorsPerTrack == 16 &&
ImageInfo.SectorSize == 512 &&
(footer.bpb.driveCode == DriDriveCodes.md2hd || footer.bpb.driveCode == DriDriveCodes.mf2hd))
{
ImageInfo.SectorsPerTrack = 8;
ImageInfo.SectorSize = 1024;
}
switch(footer.bpb.driveCode)
{
case DriDriveCodes.md2hd:
if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 15 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_HD;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 16 &&
ImageInfo.SectorSize == 256) ImageInfo.MediaType = MediaType.ACORN_525_DS_DD;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 16 &&
ImageInfo.SectorSize == 256) ImageInfo.MediaType = MediaType.ACORN_525_SS_DD_80;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 10 &&
ImageInfo.SectorSize == 256) ImageInfo.MediaType = MediaType.ACORN_525_SS_SD_80;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 77 && ImageInfo.SectorsPerTrack == 8 &&
ImageInfo.SectorSize == 1024) ImageInfo.MediaType = MediaType.NEC_525_HD;
else goto case DriDriveCodes.md2dd;
break;
case DriDriveCodes.md2dd:
if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 8 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_SS_DD_8;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 9 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_SS_DD_9;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 8 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_DS_DD_8;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 9 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_DS_DD_9;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 18 &&
ImageInfo.SectorSize == 128) ImageInfo.MediaType = MediaType.ATARI_525_SD;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 26 &&
ImageInfo.SectorSize == 128) ImageInfo.MediaType = MediaType.ATARI_525_ED;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 18 &&
ImageInfo.SectorSize == 256) ImageInfo.MediaType = MediaType.ATARI_525_DD;
else ImageInfo.MediaType = MediaType.Unknown;
break;
case DriDriveCodes.mf2ed:
if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 36 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_ED;
else goto case DriDriveCodes.mf2hd;
break;
case DriDriveCodes.mf2hd:
if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 18 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_HD;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 21 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DMF;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 82 && ImageInfo.SectorsPerTrack == 21 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DMF_82;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 77 && ImageInfo.SectorsPerTrack == 8 &&
ImageInfo.SectorSize == 1024) ImageInfo.MediaType = MediaType.NEC_35_HD_8;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 15 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.NEC_35_HD_15;
else goto case DriDriveCodes.mf2dd;
break;
case DriDriveCodes.mf2dd:
if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 9 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_DS_DD_9;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 8 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_DS_DD_8;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 9 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_SS_DD_9;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 8 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_SS_DD_8;
else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 5 &&
ImageInfo.SectorSize == 1024) ImageInfo.MediaType = MediaType.ACORN_35_DS_DD;
else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 70 && ImageInfo.SectorsPerTrack == 9 &&
ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.Apricot_35;
else ImageInfo.MediaType = MediaType.Unknown;
break;
default:
ImageInfo.MediaType = MediaType.Unknown;
break;
}
ImageInfo.XmlMediaType = XmlMediaType.BlockMedia;
DicConsole.VerboseWriteLine("Digital Research DiskCopy image contains a disk of type {0}",
ImageInfo.MediaType);
return true;
}
public override bool? VerifySector(ulong sectorAddress)
{
return null;
}
public override bool? VerifySector(ulong sectorAddress, uint track)
{
return null;
}
public override bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> failingLbas,
out List<ulong> unknownLbas)
{
failingLbas = new List<ulong>();
unknownLbas = new List<ulong>();
for(ulong i = sectorAddress; i < sectorAddress + length; i++) unknownLbas.Add(i);
return null;
}
public override bool? VerifySectors(ulong sectorAddress, uint length, uint track, out List<ulong> failingLbas,
out List<ulong> unknownLbas)
{
failingLbas = new List<ulong>();
unknownLbas = new List<ulong>();
for(ulong i = sectorAddress; i < sectorAddress + length; i++) unknownLbas.Add(i);
return null;
}
public override bool? VerifyMediaImage()
{
return null;
}
public override bool ImageHasPartitions()
{
return ImageInfo.ImageHasPartitions;
}
public override ulong GetImageSize()
{
return ImageInfo.ImageSize;
}
public override ulong GetSectors()
{
return ImageInfo.Sectors;
}
public override uint GetSectorSize()
{
return ImageInfo.SectorSize;
}
public override byte[] ReadSector(ulong sectorAddress)
{
return ReadSectors(sectorAddress, 1);
}
public override byte[] ReadSectorTag(ulong sectorAddress, SectorTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectors(ulong sectorAddress, uint length)
{
if(sectorAddress > ImageInfo.Sectors - 1)
throw new ArgumentOutOfRangeException(nameof(sectorAddress), "Sector address not found");
if(sectorAddress + length > ImageInfo.Sectors)
throw new ArgumentOutOfRangeException(nameof(length), "Requested more sectors than available");
byte[] buffer = new byte[length * ImageInfo.SectorSize];
Stream stream = driImageFilter.GetDataForkStream();
stream.Seek((long)(sectorAddress * ImageInfo.SectorSize), SeekOrigin.Begin);
stream.Read(buffer, 0, (int)(length * ImageInfo.SectorSize));
return buffer;
}
public override byte[] ReadSectorsTag(ulong sectorAddress, uint length, SectorTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorLong(ulong sectorAddress)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorsLong(ulong sectorAddress, uint length)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override string GetImageFormat()
{
return "Digital Research DiskCopy";
}
public override string GetImageVersion()
{
return ImageInfo.ImageVersion;
}
public override string GetImageApplication()
{
return ImageInfo.ImageApplication;
}
public override string GetImageApplicationVersion()
{
return ImageInfo.ImageApplicationVersion;
}
public override DateTime GetImageCreationTime()
{
return ImageInfo.ImageCreationTime;
}
public override DateTime GetImageLastModificationTime()
{
return ImageInfo.ImageLastModificationTime;
}
public override string GetImageName()
{
return ImageInfo.ImageName;
}
public override MediaType GetMediaType()
{
return ImageInfo.MediaType;
}
public override byte[] ReadDiskTag(MediaTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override string GetImageCreator()
{
return ImageInfo.ImageCreator;
}
public override string GetImageComments()
{
return ImageInfo.ImageComments;
}
public override string GetMediaManufacturer()
{
return ImageInfo.MediaManufacturer;
}
public override string GetMediaModel()
{
return ImageInfo.MediaModel;
}
public override string GetMediaSerialNumber()
{
return ImageInfo.MediaSerialNumber;
}
public override string GetMediaBarcode()
{
return ImageInfo.MediaBarcode;
}
public override string GetMediaPartNumber()
{
return ImageInfo.MediaPartNumber;
}
public override int GetMediaSequence()
{
return ImageInfo.MediaSequence;
}
public override int GetLastDiskSequence()
{
return ImageInfo.LastMediaSequence;
}
public override string GetDriveManufacturer()
{
return ImageInfo.DriveManufacturer;
}
public override string GetDriveModel()
{
return ImageInfo.DriveModel;
}
public override string GetDriveSerialNumber()
{
return ImageInfo.DriveSerialNumber;
}
public override List<Partition> GetPartitions()
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override List<Track> GetTracks()
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override List<Track> GetSessionTracks(Session session)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override List<Track> GetSessionTracks(ushort session)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override List<Session> GetSessions()
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSector(ulong sectorAddress, uint track)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorTag(ulong sectorAddress, uint track, SectorTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectors(ulong sectorAddress, uint length, uint track)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorsTag(ulong sectorAddress, uint length, uint track, SectorTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorLong(ulong sectorAddress, uint track)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorsLong(ulong sectorAddress, uint length, uint track)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct DriFooter
{
/// <summary>Signature: "DiskImage 2.01 (C) 1990,1991 Digital Research Inc\0"</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 51)] public byte[] signature;
/// <summary>Information about the disk image, mostly imitates FAT BPB</summary>
public DriBpb bpb;
/// <summary>Information about the disk image, mostly imitates FAT BPB, copy</summary>
public DriBpb bpbcopy;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct DriBpb
{
/// <summary>Seems to be always 0x05</summary>
public byte five;
/// <summary>A drive code that corresponds (but it not equal to) CMOS drive types</summary>
public DriDriveCodes driveCode;
/// <summary>Unknown seems to be always 2</summary>
public ushort unknown;
/// <summary>Cylinders</summary>
public ushort cylinders;
/// <summary>Seems to always be 0</summary>
public byte unknown2;
/// <summary>Bytes per sector</summary>
public ushort bps;
/// <summary>Sectors per cluster</summary>
public byte spc;
/// <summary>Sectors between BPB and FAT</summary>
public ushort rsectors;
/// <summary>How many FATs</summary>
public byte fats_no;
/// <summary>Entries in root directory</summary>
public ushort root_entries;
/// <summary>Total sectors</summary>
public ushort sectors;
/// <summary>Media descriptor</summary>
public byte media_descriptor;
/// <summary>Sectors per FAT</summary>
public ushort spfat;
/// <summary>Sectors per track</summary>
public ushort sptrack;
/// <summary>Heads</summary>
public ushort heads;
/// <summary>Hidden sectors before BPB</summary>
public uint hsectors;
/// <summary>Drive number</summary>
public byte drive_no;
/// <summary>Seems to be 0</summary>
public ulong unknown3;
/// <summary>Seems to be 0</summary>
public byte unknown4;
/// <summary>Sectors per track (again?)</summary>
public ushort sptrack2;
/// <summary>Seems to be 0</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 144)] public byte[] unknown5;
}
/// <summary>
/// Drive codes change according to CMOS stored valued
/// </summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
enum DriDriveCodes : byte
{
/// <summary>5.25" 360k</summary>
md2dd = 0,
/// <summary>5.25" 1.2M</summary>
md2hd = 1,
/// <summary>3.5" 720k</summary>
mf2dd = 2,
/// <summary>3.5" 1.44M</summary>
mf2hd = 7,
/// <summary>3.5" 2.88M</summary>
mf2ed = 9
}
}
}