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601 lines
26 KiB
C#
601 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.Runtime.InteropServices;
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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 : ImagePlugin
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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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Filter driImageFilter;
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/// <summary>Footer of opened image</summary>
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DriFooter footer;
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public DriDiskCopy()
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{
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Name = "Digital Research DiskCopy";
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PluginUuid = new Guid("9F0BE551-8BAB-4038-8B5A-691F1BF5FFF3");
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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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ImageHasPartitions = false,
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ImageHasSessions = false,
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ImageApplication = "DiskCopy",
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ImageCreator = null,
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ImageComments = 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 override bool IdentifyImage(Filter 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 override bool OpenImage(Filter 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.ImageApplicationVersion = 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.ImageCreationTime = imageFilter.GetCreationTime();
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ImageInfo.ImageLastModificationTime = imageFilter.GetLastWriteTime();
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DicConsole.DebugWriteLine("DRI DiskCopy plugin", "Image application = {0} version {1}",
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ImageInfo.ImageApplication, ImageInfo.ImageApplicationVersion);
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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 && ImageInfo.SectorsPerTrack == 16 &&
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ImageInfo.SectorSize == 512 &&
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(footer.bpb.driveCode == DriDriveCodes.md2hd || 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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switch(footer.bpb.driveCode)
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{
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case DriDriveCodes.md2hd:
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if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 15 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_HD;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 16 &&
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ImageInfo.SectorSize == 256) ImageInfo.MediaType = MediaType.ACORN_525_DS_DD;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 16 &&
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ImageInfo.SectorSize == 256) ImageInfo.MediaType = MediaType.ACORN_525_SS_DD_80;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 10 &&
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ImageInfo.SectorSize == 256) ImageInfo.MediaType = MediaType.ACORN_525_SS_SD_80;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 77 && ImageInfo.SectorsPerTrack == 8 &&
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ImageInfo.SectorSize == 1024) ImageInfo.MediaType = MediaType.NEC_525_HD;
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else goto case DriDriveCodes.md2dd;
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break;
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case DriDriveCodes.md2dd:
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if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 8 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_SS_DD_8;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 9 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_SS_DD_9;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 8 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_DS_DD_8;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 9 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_525_DS_DD_9;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 18 &&
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ImageInfo.SectorSize == 128) ImageInfo.MediaType = MediaType.ATARI_525_SD;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 26 &&
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ImageInfo.SectorSize == 128) ImageInfo.MediaType = MediaType.ATARI_525_ED;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 40 && ImageInfo.SectorsPerTrack == 18 &&
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ImageInfo.SectorSize == 256) ImageInfo.MediaType = MediaType.ATARI_525_DD;
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else ImageInfo.MediaType = MediaType.Unknown;
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break;
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case DriDriveCodes.mf2ed:
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if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 36 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_ED;
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else goto case DriDriveCodes.mf2hd;
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break;
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case DriDriveCodes.mf2hd:
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if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 18 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_HD;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 21 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DMF;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 82 && ImageInfo.SectorsPerTrack == 21 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DMF_82;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 77 && ImageInfo.SectorsPerTrack == 8 &&
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ImageInfo.SectorSize == 1024) ImageInfo.MediaType = MediaType.NEC_35_HD_8;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 15 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.NEC_35_HD_15;
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else goto case DriDriveCodes.mf2dd;
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break;
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case DriDriveCodes.mf2dd:
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if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 9 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_DS_DD_9;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 8 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_DS_DD_8;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 9 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_SS_DD_9;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 8 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.DOS_35_SS_DD_8;
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else if(ImageInfo.Heads == 2 && ImageInfo.Cylinders == 80 && ImageInfo.SectorsPerTrack == 5 &&
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ImageInfo.SectorSize == 1024) ImageInfo.MediaType = MediaType.ACORN_35_DS_DD;
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else if(ImageInfo.Heads == 1 && ImageInfo.Cylinders == 70 && ImageInfo.SectorsPerTrack == 9 &&
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ImageInfo.SectorSize == 512) ImageInfo.MediaType = MediaType.Apricot_35;
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else ImageInfo.MediaType = MediaType.Unknown;
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break;
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default:
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ImageInfo.MediaType = MediaType.Unknown;
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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 override bool? VerifySector(ulong sectorAddress)
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{
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return null;
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}
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public override 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 override 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 override 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 override bool? VerifyMediaImage()
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{
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return null;
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}
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public override bool ImageHasPartitions()
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{
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return ImageInfo.ImageHasPartitions;
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}
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public override ulong GetImageSize()
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{
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return ImageInfo.ImageSize;
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}
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public override ulong GetSectors()
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{
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return ImageInfo.Sectors;
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}
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public override uint GetSectorSize()
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{
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return ImageInfo.SectorSize;
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}
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public override 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 override 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 override 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 override 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 override 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 override 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 override string GetImageFormat()
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{
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return "Digital Research DiskCopy";
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}
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public override string GetImageVersion()
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{
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return ImageInfo.ImageVersion;
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}
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public override string GetImageApplication()
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{
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return ImageInfo.ImageApplication;
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}
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public override string GetImageApplicationVersion()
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{
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return ImageInfo.ImageApplicationVersion;
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}
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public override DateTime GetImageCreationTime()
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{
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return ImageInfo.ImageCreationTime;
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}
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public override DateTime GetImageLastModificationTime()
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{
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return ImageInfo.ImageLastModificationTime;
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}
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public override string GetImageName()
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{
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return ImageInfo.ImageName;
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}
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public override MediaType GetMediaType()
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{
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return ImageInfo.MediaType;
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}
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public override 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 override string GetImageCreator()
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{
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return ImageInfo.ImageCreator;
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}
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public override string GetImageComments()
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{
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return ImageInfo.ImageComments;
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}
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public override string GetMediaManufacturer()
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{
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return ImageInfo.MediaManufacturer;
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}
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public override string GetMediaModel()
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{
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return ImageInfo.MediaModel;
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}
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public override string GetMediaSerialNumber()
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{
|
|
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
|
|
}
|
|
}
|
|
} |