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* DiscImageChef/Commands/MediaInfo.cs:
* DiscImageChef/Commands/DeviceInfo.cs: Added support for SCSI sequential devices. * DiscImageChef.Decoders/SCSI/SSC/BlockLimits.cs: * DiscImageChef.Decoders/SCSI/SSC/DensitySupport.cs: * DiscImageChef.Decoders/DiscImageChef.Decoders.csproj: Added decoders for SCSI SSC READ BLOCK LIMITS and REPORT DENSITY SUPPORT. * DiscImageChef.Devices/Device/ScsiCommands/SSC.cs: Corrected ReportDensitySupport. * DiscImageChef.Decoders/SCSI/Modes.cs: Corrected mode size.
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278
DiscImageChef.Decoders/SCSI/SSC/DensitySupport.cs
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278
DiscImageChef.Decoders/SCSI/SSC/DensitySupport.cs
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// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : DensitySupport.cs
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// Version : 1.0
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// Author(s) : Natalia Portillo
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//
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// Component : Component
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//
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// Revision : $Revision$
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// Last change by : $Author$
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// Date : $Date$
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Description
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright (C) 2011-2015 Claunia.com
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// ****************************************************************************/
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// //$Id$
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace DiscImageChef.Decoders.SCSI.SSC
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{
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public static class DensitySupport
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{
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public struct DensitySupportHeader
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{
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public ushort length;
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public ushort reserved;
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public DensitySupportDescriptor[] descriptors;
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}
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public struct MediaTypeSupportHeader
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{
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public ushort length;
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public ushort reserved;
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public MediaTypeSupportDescriptor[] descriptors;
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}
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public struct DensitySupportDescriptor
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{
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public byte primaryCode;
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public byte secondaryCode;
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public bool writable;
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public bool duplicate;
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public bool defaultDensity;
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public byte reserved;
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public bool lenvalid;
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public ushort len;
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public uint bpmm;
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public ushort width;
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public ushort tracks;
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public uint capacity;
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public string organization;
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public string name;
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public string description;
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}
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public struct MediaTypeSupportDescriptor
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{
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public byte mediumType;
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public byte reserved1;
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public ushort len;
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public byte numberOfCodes;
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public byte[] densityCodes;
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public ushort width;
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public ushort length;
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public byte reserved2;
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public byte reserved3;
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public string organization;
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public string name;
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public string description;
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}
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public static DensitySupportHeader? DecodeDensity(byte[] response)
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{
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if (response == null)
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return null;
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if (response.Length <= 56)
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return null;
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ushort responseLen = (ushort)((response[0] << 8) + response[1] + 2);
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if (response.Length != responseLen)
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return null;
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List<DensitySupportDescriptor> descriptors = new List<DensitySupportDescriptor>();
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int offset = 4;
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byte[] tmp;
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while (offset < response.Length)
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{
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DensitySupportDescriptor descriptor = new DensitySupportDescriptor();
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descriptor.primaryCode = response[offset + 0];
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descriptor.secondaryCode = response[offset + 1];
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descriptor.writable |= (response[offset + 2] & 0x80) == 0x80;
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descriptor.duplicate |= (response[offset + 2] & 0x40) == 0x40;
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descriptor.defaultDensity |= (response[offset + 2] & 0x20) == 0x20;
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descriptor.reserved = (byte)((response[offset + 2] & 0x1E) >> 1);
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descriptor.lenvalid |= (response[offset + 2] & 0x01) == 0x01;
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descriptor.len = (ushort)((response[offset + 3] << 8) + response[offset + 4]);
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descriptor.bpmm = (uint)((response[offset + 5] << 16) + (response[offset + 6] << 8) + response[offset + 7]);
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descriptor.width = (ushort)((response[offset + 8] << 8) + response[offset + 9]);
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descriptor.tracks = (ushort)((response[offset + 10] << 8) + response[offset + 11]);
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descriptor.capacity = (uint)((response[offset + 12] << 24) + (response[offset + 13] << 16) + (response[offset + 14] << 8) + response[offset + 15]);
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tmp = new byte[8];
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Array.Copy(response, offset + 16, tmp, 0, 8);
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descriptor.organization = StringHandlers.CToString(tmp).Trim();
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tmp = new byte[8];
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Array.Copy(response, offset + 24, tmp, 0, 8);
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descriptor.name = StringHandlers.CToString(tmp).Trim();
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tmp = new byte[20];
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Array.Copy(response, offset + 32, tmp, 0, 20);
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descriptor.description = StringHandlers.CToString(tmp).Trim();
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if (descriptor.lenvalid)
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offset += descriptor.len + 5;
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else
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offset += 52;
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descriptors.Add(descriptor);
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}
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DensitySupportHeader decoded = new DensitySupportHeader();
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decoded.length = responseLen;
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decoded.reserved = (ushort)((response[2] << 8) + response[3] + 2);
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decoded.descriptors = descriptors.ToArray();
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return decoded;
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}
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public static string PrettifyDensity(DensitySupportHeader? density)
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{
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if (density == null)
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return null;
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DensitySupportHeader decoded = density.Value;
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StringBuilder sb = new StringBuilder();
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foreach (DensitySupportDescriptor descriptor in decoded.descriptors)
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{
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sb.AppendFormat("Density \"{0}\" defined by \"{1}\".", descriptor.name, descriptor.organization).AppendLine();
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sb.AppendFormat("\tPrimary code: {0:X2}h", descriptor.primaryCode).AppendLine();
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if(descriptor.primaryCode != descriptor.secondaryCode)
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sb.AppendFormat("\tSecondary code: {0:X2}h", descriptor.secondaryCode).AppendLine();
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if (descriptor.writable)
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sb.AppendLine("\tDrive can write this density");
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if (descriptor.duplicate)
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sb.AppendLine("\tThis descriptor is duplicated");
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if (descriptor.defaultDensity)
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sb.AppendLine("\tThis is the default density on the drive");
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sb.AppendFormat("\tDensity has {0} bits per mm, with {1} tracks in a {2} mm width tape",
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descriptor.bpmm, descriptor.tracks, (double)((double)descriptor.width / (double)10)).AppendLine();
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sb.AppendFormat("\tDensity maximum capacity is {0} megabytes", descriptor.capacity).AppendLine();
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sb.AppendFormat("\tDensity description: {0}", descriptor.description).AppendLine();
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sb.AppendLine();
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}
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return sb.ToString();
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}
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public static string PrettifyDensity(byte[] response)
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{
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return PrettifyDensity(DecodeDensity(response));
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}
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public static MediaTypeSupportHeader? DecodeMediumType(byte[] response)
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{
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if (response == null)
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return null;
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if (response.Length <= 60)
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return null;
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ushort responseLen = (ushort)((response[0] << 8) + response[1] + 2);
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if (response.Length != responseLen)
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return null;
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List<MediaTypeSupportDescriptor> descriptors = new List<MediaTypeSupportDescriptor>();
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int offset = 4;
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byte[] tmp;
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while (offset < response.Length)
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{
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MediaTypeSupportDescriptor descriptor = new MediaTypeSupportDescriptor();
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descriptor.mediumType = response[offset + 0];
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descriptor.reserved1 = response[offset + 1];
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descriptor.len = (ushort)((response[offset + 2] << 8) + response[offset + 3]);
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if (descriptor.len != 52)
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return null;
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descriptor.numberOfCodes = response[offset + 4];
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descriptor.densityCodes = new byte[9];
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Array.Copy(response, offset + 5, descriptor.densityCodes, 0, 9);
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descriptor.width = (ushort)((response[offset + 14] << 8) + response[offset + 15]);
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descriptor.length = (ushort)((response[offset + 16] << 8) + response[offset + 17]);
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descriptor.reserved1 = response[offset + 18];
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descriptor.reserved1 = response[offset + 19];
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tmp = new byte[8];
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Array.Copy(response, offset + 20, tmp, 0, 8);
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descriptor.organization = StringHandlers.CToString(tmp).Trim();
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tmp = new byte[8];
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Array.Copy(response, offset + 28, tmp, 0, 8);
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descriptor.name = StringHandlers.CToString(tmp).Trim();
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tmp = new byte[20];
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Array.Copy(response, offset + 36, tmp, 0, 20);
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descriptor.description = StringHandlers.CToString(tmp).Trim();
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offset += 56;
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descriptors.Add(descriptor);
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}
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MediaTypeSupportHeader decoded = new MediaTypeSupportHeader();
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decoded.length = responseLen;
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decoded.reserved = (ushort)((response[2] << 8) + response[3] + 2);
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decoded.descriptors = descriptors.ToArray();
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return decoded;
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}
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public static string PrettifyMediumType(MediaTypeSupportHeader? mediumType)
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{
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if (mediumType == null)
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return null;
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MediaTypeSupportHeader decoded = mediumType.Value;
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StringBuilder sb = new StringBuilder();
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foreach (MediaTypeSupportDescriptor descriptor in decoded.descriptors)
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{
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sb.AppendFormat("Medium type \"{0}\" defined by \"{1}\".", descriptor.name, descriptor.organization).AppendLine();
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sb.AppendFormat("\tMedium type code: {0:X2}h", descriptor.mediumType).AppendLine();
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if (descriptor.numberOfCodes > 0)
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{
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sb.AppendFormat("\tMedium supports following density codes:");
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for (int i = 0; i < descriptor.numberOfCodes; i++)
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sb.AppendFormat(" {0:X2}h", descriptor.densityCodes[i]);
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sb.AppendLine();
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}
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sb.AppendFormat("\tMedium has a nominal length of {0} m in a {1} mm width tape",
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descriptor.length, (double)((double)descriptor.width / (double)10)).AppendLine();
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sb.AppendFormat("\tMedium description: {0}", descriptor.description).AppendLine();
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sb.AppendLine();
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}
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return sb.ToString();
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}
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public static string PrettifyMediumType(byte[] response)
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{
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return PrettifyMediumType(DecodeMediumType(response));
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}
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}
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}
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