* 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.
2025-12-16 19:24:25 +00:00 · 2016-01-15 07:00:43 +00:00
parent 14b7be1172
commit 2a8b5d3cc5
10 changed files with 621 additions and 116 deletions
--- a/DiscImageChef.Decoders/SCSI/SSC/BlockLimits.cs
+++ b/DiscImageChef.Decoders/SCSI/SSC/BlockLimits.cs
@@ -0,0 +1,108 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : BlockLimits.cs
+// Version        : 1.0
+// Author(s)      : Natalia Portillo
+//
+// Component      : Component
+//
+// Revision       : $Revision$
+// Last change by : $Author$
+// Date           : $Date$
+//
+// --[ Description ] ----------------------------------------------------------
+//
+// Description
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright (C) 2011-2015 Claunia.com
+// ****************************************************************************/
+// //$Id$
+using System;
+using System.Text;
+
+namespace DiscImageChef.Decoders.SCSI.SSC
+{
+    public static class BlockLimits
+    {
+        public struct BlockLimitsData
+        {
+            /// <summary>
+            /// All blocks size must be multiple of 2^<cref name="granularity"/>
+            /// </summary>
+            public byte granularity;
+            /// <summary>
+            /// Maximum block length in bytes
+            /// </summary>
+            public uint maxBlockLen;
+            /// <summary>
+            /// Minimum block length in bytes
+            /// </summary>
+            public ushort minBlockLen;
+        }
+
+        public static BlockLimitsData? Decode(byte[] response)
+        {
+            if (response == null)
+                return null;
+
+            if (response.Length != 6)
+                return null;
+
+            BlockLimitsData dec = new BlockLimitsData();
+
+            dec.granularity = (byte)(response[0] & 0x1F);
+            dec.maxBlockLen = (uint)((response[1] << 16) + (response[2] << 8) + response[3]);
+            dec.minBlockLen = (ushort)((response[4] << 8) + response[5]);
+
+            return dec;
+        }
+
+        public static string Prettify(BlockLimitsData? decoded)
+        {
+            if (decoded == null)
+                return null;
+
+            StringBuilder sb = new StringBuilder();
+
+            if (decoded.Value.maxBlockLen == decoded.Value.minBlockLen)
+                sb.AppendFormat("Device's block size is fixed at {0} bytes", decoded.Value.minBlockLen).AppendLine();
+            else
+            {
+                if (decoded.Value.maxBlockLen > 0)
+                    sb.AppendFormat("Device's maximum block size is {0} bytes", decoded.Value.maxBlockLen).AppendLine();
+                else
+                    sb.AppendLine("Device does not specify a maximum block size");
+                sb.AppendFormat("Device's minimum block size is {0} bytes", decoded.Value.minBlockLen).AppendLine();
+
+                if (decoded.Value.granularity > 0)
+                    sb.AppendFormat("Device's needs a block size granularity of 2^{0} ({1}) bytes", decoded.Value.granularity, Math.Pow(2, (double)decoded.Value.granularity)).AppendLine();
+            }
+
+            return sb.ToString();
+        }
+
+        public static string Prettify(byte[] response)
+        {
+            return Prettify(Decode(response));
+        }
+    }
+}
+