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643 lines
26 KiB
C#
643 lines
26 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : DriDiskCopy.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Manages Digital Research's DISKCOPY disk images.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2018 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Text.RegularExpressions;
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using DiscImageChef.CommonTypes;
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using DiscImageChef.Console;
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using DiscImageChef.Filters;
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namespace DiscImageChef.DiscImages
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{
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public class DriDiskCopy : IWritableImage
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{
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const string REGEX_DRI = @"DiskImage\s(?<version>\d+.\d+)\s\(C\)\s\d+\,*\d*\s+Digital Research Inc";
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/// <summary>Disk image file</summary>
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IFilter driImageFilter;
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/// <summary>Footer of opened image</summary>
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DriFooter footer;
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ImageInfo imageInfo;
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FileStream writingStream;
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public DriDiskCopy()
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{
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imageInfo = new ImageInfo
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{
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ReadableSectorTags = new List<SectorTagType>(),
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ReadableMediaTags = new List<MediaTagType>(),
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HasPartitions = false,
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HasSessions = false,
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Application = "DiskCopy",
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Creator = null,
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Comments = null,
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MediaManufacturer = null,
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MediaModel = null,
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MediaSerialNumber = null,
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MediaBarcode = null,
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MediaPartNumber = null,
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MediaSequence = 0,
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LastMediaSequence = 0,
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DriveManufacturer = null,
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DriveModel = null,
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DriveSerialNumber = null,
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DriveFirmwareRevision = null
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};
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}
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public ImageInfo Info => imageInfo;
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public string Name => "Digital Research DiskCopy";
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public Guid Id => new Guid("9F0BE551-8BAB-4038-8B5A-691F1BF5FFF3");
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public string Format => "Digital Research DiskCopy";
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public List<Partition> Partitions =>
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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public List<Track> Tracks =>
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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public List<Session> Sessions =>
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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public bool Identify(IFilter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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if((stream.Length - Marshal.SizeOf(typeof(DriFooter))) % 512 != 0) return false;
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byte[] buffer = new byte[Marshal.SizeOf(typeof(DriFooter))];
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stream.Seek(-buffer.Length, SeekOrigin.End);
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stream.Read(buffer, 0, buffer.Length);
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IntPtr ftrPtr = Marshal.AllocHGlobal(buffer.Length);
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Marshal.Copy(buffer, 0, ftrPtr, buffer.Length);
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DriFooter tmpFooter = (DriFooter)Marshal.PtrToStructure(ftrPtr, typeof(DriFooter));
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Marshal.FreeHGlobal(ftrPtr);
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string sig = StringHandlers.CToString(tmpFooter.signature);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.signature = \"{0}\"", sig);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.five = {0}", tmpFooter.bpb.five);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.driveCode = {0}", tmpFooter.bpb.driveCode);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.unknown = {0}", tmpFooter.bpb.unknown);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.cylinders = {0}", tmpFooter.bpb.cylinders);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.unknown2 = {0}", tmpFooter.bpb.unknown2);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.bps = {0}", tmpFooter.bpb.bps);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.spc = {0}", tmpFooter.bpb.spc);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.rsectors = {0}", tmpFooter.bpb.rsectors);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.fats_no = {0}", tmpFooter.bpb.fats_no);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.sectors = {0}", tmpFooter.bpb.sectors);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.media_descriptor = {0}",
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tmpFooter.bpb.media_descriptor);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.spfat = {0}", tmpFooter.bpb.spfat);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.sptrack = {0}", tmpFooter.bpb.sptrack);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.heads = {0}", tmpFooter.bpb.heads);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.hsectors = {0}", tmpFooter.bpb.hsectors);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.drive_no = {0}", tmpFooter.bpb.drive_no);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.unknown3 = {0}", tmpFooter.bpb.unknown3);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.unknown4 = {0}", tmpFooter.bpb.unknown4);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "tmp_footer.bpb.sptrack2 = {0}", tmpFooter.bpb.sptrack2);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin",
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"ArrayHelpers.ArrayIsNullOrEmpty(tmp_footer.bpb.unknown5) = {0}",
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ArrayHelpers.ArrayIsNullOrEmpty(tmpFooter.bpb.unknown5));
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Regex regexSignature = new Regex(REGEX_DRI);
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Match matchSignature = regexSignature.Match(sig);
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "MatchSignature.Success? = {0}", matchSignature.Success);
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if(!matchSignature.Success) return false;
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if(tmpFooter.bpb.sptrack * tmpFooter.bpb.cylinders * tmpFooter.bpb.heads != tmpFooter.bpb.sectors)
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return false;
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return tmpFooter.bpb.sectors * tmpFooter.bpb.bps + Marshal.SizeOf(tmpFooter) == stream.Length;
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}
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public bool Open(IFilter imageFilter)
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{
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Stream stream = imageFilter.GetDataForkStream();
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if((stream.Length - Marshal.SizeOf(typeof(DriFooter))) % 512 != 0) return false;
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byte[] buffer = new byte[Marshal.SizeOf(typeof(DriFooter))];
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stream.Seek(-buffer.Length, SeekOrigin.End);
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stream.Read(buffer, 0, buffer.Length);
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footer = new DriFooter();
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IntPtr ftrPtr = Marshal.AllocHGlobal(buffer.Length);
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Marshal.Copy(buffer, 0, ftrPtr, buffer.Length);
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footer = (DriFooter)Marshal.PtrToStructure(ftrPtr, typeof(DriFooter));
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Marshal.FreeHGlobal(ftrPtr);
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string sig = StringHandlers.CToString(footer.signature);
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Regex regexSignature = new Regex(REGEX_DRI);
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Match matchSignature = regexSignature.Match(sig);
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if(!matchSignature.Success) return false;
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if(footer.bpb.sptrack * footer.bpb.cylinders * footer.bpb.heads != footer.bpb.sectors) return false;
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if(footer.bpb.sectors * footer.bpb.bps + Marshal.SizeOf(footer) != stream.Length) return false;
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imageInfo.Cylinders = footer.bpb.cylinders;
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imageInfo.Heads = footer.bpb.heads;
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imageInfo.SectorsPerTrack = footer.bpb.sptrack;
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imageInfo.Sectors = footer.bpb.sectors;
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imageInfo.SectorSize = footer.bpb.bps;
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imageInfo.ApplicationVersion = matchSignature.Groups["version"].Value;
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driImageFilter = imageFilter;
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imageInfo.ImageSize = (ulong)(stream.Length - Marshal.SizeOf(footer));
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imageInfo.CreationTime = imageFilter.GetCreationTime();
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imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "Image application = {0} version {1}",
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imageInfo.Application, imageInfo.ApplicationVersion);
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// Correct some incorrect data in images of NEC 2HD disks
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if(imageInfo.Cylinders == 77 && imageInfo.Heads == 2 &&
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imageInfo.SectorsPerTrack == 16 &&
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imageInfo.SectorSize == 512 &&
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(footer.bpb.driveCode == DriDriveCodes.md2hd ||
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footer.bpb.driveCode == DriDriveCodes.mf2hd))
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{
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imageInfo.SectorsPerTrack = 8;
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imageInfo.SectorSize = 1024;
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}
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imageInfo.MediaType =
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Geometry.GetMediaType(((ushort)imageInfo.Cylinders, (byte)imageInfo.Heads,
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(ushort)imageInfo.SectorsPerTrack, imageInfo.SectorSize, MediaEncoding.MFM, false
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));
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switch(imageInfo.MediaType)
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{
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case MediaType.NEC_525_HD when footer.bpb.driveCode == DriDriveCodes.mf2hd ||
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footer.bpb.driveCode == DriDriveCodes.mf2ed:
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imageInfo.MediaType = MediaType.NEC_35_HD_8;
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break;
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case MediaType.DOS_525_HD when footer.bpb.driveCode == DriDriveCodes.mf2hd ||
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footer.bpb.driveCode == DriDriveCodes.mf2ed:
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imageInfo.MediaType = MediaType.NEC_35_HD_15;
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break;
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case MediaType.RX50 when footer.bpb.driveCode == DriDriveCodes.md2dd ||
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footer.bpb.driveCode == DriDriveCodes.md2hd:
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imageInfo.MediaType = MediaType.ATARI_35_SS_DD;
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break;
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}
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imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
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DicConsole.VerboseWriteLine("Digital Research DiskCopy image contains a disk of type {0}",
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imageInfo.MediaType);
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return true;
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}
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public bool? VerifySector(ulong sectorAddress)
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{
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return null;
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}
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public bool? VerifySector(ulong sectorAddress, uint track)
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{
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return null;
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}
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public bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> failingLbas,
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out List<ulong> unknownLbas)
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{
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failingLbas = new List<ulong>();
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unknownLbas = new List<ulong>();
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for(ulong i = sectorAddress; i < sectorAddress + length; i++) unknownLbas.Add(i);
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return null;
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}
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public bool? VerifySectors(ulong sectorAddress, uint length, uint track, out List<ulong> failingLbas,
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out List<ulong> unknownLbas)
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{
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failingLbas = new List<ulong>();
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unknownLbas = new List<ulong>();
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for(ulong i = sectorAddress; i < sectorAddress + length; i++) unknownLbas.Add(i);
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return null;
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}
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public bool? VerifyMediaImage()
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{
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return null;
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}
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public byte[] ReadSector(ulong sectorAddress)
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{
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return ReadSectors(sectorAddress, 1);
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}
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public byte[] ReadSectorTag(ulong sectorAddress, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectors(ulong sectorAddress, uint length)
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{
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if(sectorAddress > imageInfo.Sectors - 1)
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throw new ArgumentOutOfRangeException(nameof(sectorAddress), "Sector address not found");
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if(sectorAddress + length > imageInfo.Sectors)
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throw new ArgumentOutOfRangeException(nameof(length), "Requested more sectors than available");
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byte[] buffer = new byte[length * imageInfo.SectorSize];
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Stream stream = driImageFilter.GetDataForkStream();
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stream.Seek((long)(sectorAddress * imageInfo.SectorSize), SeekOrigin.Begin);
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stream.Read(buffer, 0, (int)(length * imageInfo.SectorSize));
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return buffer;
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}
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public byte[] ReadSectorsTag(ulong sectorAddress, uint length, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorLong(ulong sectorAddress)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorsLong(ulong sectorAddress, uint length)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadDiskTag(MediaTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public List<Track> GetSessionTracks(Session session)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public List<Track> GetSessionTracks(ushort session)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSector(ulong sectorAddress, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorTag(ulong sectorAddress, uint track, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectors(ulong sectorAddress, uint length, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorsTag(ulong sectorAddress, uint length, uint track, SectorTagType tag)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorLong(ulong sectorAddress, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public byte[] ReadSectorsLong(ulong sectorAddress, uint length, uint track)
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{
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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public IEnumerable<MediaTagType> SupportedMediaTags => new MediaTagType[] { };
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public IEnumerable<SectorTagType> SupportedSectorTags => new SectorTagType[] { };
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// TODO: Test with real hardware to see real supported media
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public IEnumerable<MediaType> SupportedMediaTypes =>
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new[]
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{
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MediaType.ACORN_35_DS_DD, MediaType.ACORN_35_DS_HD, MediaType.Apricot_35, MediaType.ATARI_35_DS_DD,
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MediaType.ATARI_35_DS_DD_11, MediaType.ATARI_35_SS_DD, MediaType.ATARI_35_SS_DD_11, MediaType.DMF,
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MediaType.DMF_82, MediaType.DOS_35_DS_DD_8, MediaType.DOS_35_DS_DD_9, MediaType.DOS_35_ED,
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MediaType.DOS_35_HD, MediaType.DOS_35_SS_DD_8, MediaType.DOS_35_SS_DD_9, MediaType.DOS_525_DS_DD_8,
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MediaType.DOS_525_DS_DD_9, MediaType.DOS_525_HD, MediaType.DOS_525_SS_DD_8, MediaType.DOS_525_SS_DD_9,
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MediaType.FDFORMAT_35_DD, MediaType.FDFORMAT_35_HD, MediaType.FDFORMAT_525_DD,
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MediaType.FDFORMAT_525_HD, MediaType.RX50, MediaType.XDF_35, MediaType.XDF_525
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};
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public IEnumerable<(string name, Type type, string description)> SupportedOptions =>
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new(string name, Type type, string description)[] { };
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public IEnumerable<string> KnownExtensions => new[] {".dsk"};
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public bool IsWriting { get; private set; }
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public string ErrorMessage { get; private set; }
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public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
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uint sectorSize)
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{
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if(sectorSize == 0)
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{
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ErrorMessage = "Unsupported sector size";
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return false;
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}
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if(sectors > ushort.MaxValue)
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{
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ErrorMessage = $"Too many sectors";
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return false;
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}
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if(!SupportedMediaTypes.Contains(mediaType))
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{
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ErrorMessage = $"Unsupport media format {mediaType}";
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return false;
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}
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imageInfo = new ImageInfo {MediaType = mediaType, SectorSize = sectorSize, Sectors = sectors};
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try { writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); }
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catch(IOException e)
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{
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ErrorMessage = $"Could not create new image file, exception {e.Message}";
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return false;
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}
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(ushort cylinders, byte heads, ushort sectorsPerTrack, uint bytesPerSector, MediaEncoding encoding, bool
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variableSectorsPerTrack, MediaType type) geometry = Geometry.GetGeometry(mediaType);
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footer = new DriFooter
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{
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signature = new byte[51],
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bpb = new DriBpb
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{
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five = 5,
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driveCode = DriDriveCodes.mf2ed,
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cylinders = geometry.cylinders,
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bps = (ushort)imageInfo.SectorSize,
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sectors = (ushort)imageInfo.Sectors,
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sptrack = (ushort)imageInfo.SectorsPerTrack,
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heads = (ushort)imageInfo.Heads,
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sptrack2 = (ushort)imageInfo.SectorsPerTrack,
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unknown5 = new byte[144]
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}
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};
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Array.Copy(Encoding.ASCII.GetBytes("DiskImage 2.01 (C) 1990,1991 Digital Research Inc"), 0,
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footer.signature, 0, 50);
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footer.bpbcopy = footer.bpb;
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IsWriting = true;
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ErrorMessage = null;
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return true;
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}
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public bool WriteMediaTag(byte[] data, MediaTagType tag)
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{
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ErrorMessage = "Writing media tags is not supported.";
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return false;
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}
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public bool WriteSector(byte[] data, ulong sectorAddress)
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{
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(data.Length != imageInfo.SectorSize)
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{
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(sectorAddress >= imageInfo.Sectors)
|
|
{
|
|
ErrorMessage = "Tried to write past image size";
|
|
return false;
|
|
}
|
|
|
|
writingStream.Seek((long)(sectorAddress * imageInfo.SectorSize), SeekOrigin.Begin);
|
|
writingStream.Write(data, 0, data.Length);
|
|
|
|
ErrorMessage = "";
|
|
return true;
|
|
}
|
|
|
|
public bool WriteSectors(byte[] data, ulong sectorAddress, uint length)
|
|
{
|
|
if(!IsWriting)
|
|
{
|
|
ErrorMessage = "Tried to write on a non-writable image";
|
|
return false;
|
|
}
|
|
|
|
if(data.Length % imageInfo.SectorSize != 0)
|
|
{
|
|
ErrorMessage = "Incorrect data size";
|
|
return false;
|
|
}
|
|
|
|
if(sectorAddress + length > imageInfo.Sectors)
|
|
{
|
|
ErrorMessage = "Tried to write past image size";
|
|
return false;
|
|
}
|
|
|
|
writingStream.Seek((long)(sectorAddress * imageInfo.SectorSize), SeekOrigin.Begin);
|
|
writingStream.Write(data, 0, data.Length);
|
|
|
|
ErrorMessage = "";
|
|
return true;
|
|
}
|
|
|
|
public bool WriteSectorLong(byte[] data, ulong sectorAddress)
|
|
{
|
|
ErrorMessage = "Writing sectors with tags is not supported.";
|
|
return false;
|
|
}
|
|
|
|
public bool WriteSectorsLong(byte[] data, ulong sectorAddress, uint length)
|
|
{
|
|
ErrorMessage = "Writing sectors with tags is not supported.";
|
|
return false;
|
|
}
|
|
|
|
public bool SetTracks(List<Track> tracks)
|
|
{
|
|
ErrorMessage = "Unsupported feature";
|
|
return false;
|
|
}
|
|
|
|
public bool Close()
|
|
{
|
|
if(!IsWriting)
|
|
{
|
|
ErrorMessage = "Image is not opened for writing";
|
|
return false;
|
|
}
|
|
|
|
byte[] hdr = new byte[Marshal.SizeOf(footer)];
|
|
IntPtr hdrPtr = Marshal.AllocHGlobal(Marshal.SizeOf(footer));
|
|
Marshal.StructureToPtr(footer, hdrPtr, true);
|
|
Marshal.Copy(hdrPtr, hdr, 0, hdr.Length);
|
|
Marshal.FreeHGlobal(hdrPtr);
|
|
|
|
writingStream.Seek(0, SeekOrigin.End);
|
|
writingStream.Write(hdr, 0, hdr.Length);
|
|
|
|
writingStream.Flush();
|
|
writingStream.Close();
|
|
IsWriting = false;
|
|
|
|
return true;
|
|
}
|
|
|
|
public bool SetMetadata(ImageInfo metadata)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack)
|
|
{
|
|
// Geometry is set by media type
|
|
return true;
|
|
}
|
|
|
|
public bool WriteSectorTag(byte[] data, ulong sectorAddress, SectorTagType tag)
|
|
{
|
|
ErrorMessage = "Unsupported feature";
|
|
return false;
|
|
}
|
|
|
|
public bool WriteSectorsTag(byte[] data, ulong sectorAddress, uint length, SectorTagType tag)
|
|
{
|
|
ErrorMessage = "Unsupported feature";
|
|
return false;
|
|
}
|
|
|
|
[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
|
|
}
|
|
}
|
|
} |