Initial checkin

Bwg.Scsi/CapacityDescriptor.cs

@@ -0,0 +1,109 @@
+//
+// BwgBurn - CD-R/CD-RW/DVD-R/DVD-RW burning program for DotNet
+// 
+// Copyright (C) 2006 by Jack W. Griffin (butchg@comcast.net)
+//
+// 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 2 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, write to the 
+//
+// Free Software Foundation, Inc., 
+// 59 Temple Place, Suite 330, 
+// Boston, MA 02111-1307 USA
+//
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Bwg.Scsi
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public class CapacityDescriptor : Result
+    {
+        #region public types
+        /// <summary>
+        /// 
+        /// </summary>
+        public enum DescriptorType : byte
+        {
+            /// <summary>
+            /// 
+            /// </summary>
+            Reserved = 0,
+
+            /// <summary>
+            /// 
+            /// </summary>
+            Unformatted = 1,
+
+            /// <summary>
+            /// 
+            /// </summary>
+            Formatted = 2,
+
+            /// <summary>
+            /// 
+            /// </summary>
+            NoMedia = 3
+        } ;
+        #endregion
+
+        #region public variables
+
+        /// <summary>
+        /// The number of blocks on this media.
+        /// </summary>
+        public readonly uint NumberOfBlocks;
+
+        /// <summary>
+        /// This length of a single block for this capacity
+        /// </summary>
+        public readonly uint BlockLength;
+
+        /// <summary>
+        /// This is the descriptor type, see the SCSI-3 MMC specification
+        /// </summary>
+        public readonly DescriptorType DescType;
+
+        /// <summary>
+        /// This is the type of format for the capacity descriptor, see the SCSI-3 MMC spec
+        /// </summary>
+        public readonly byte FormatType;
+
+        #endregion
+
+        #region constructor
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="buffer"></param>
+        /// <param name="offset"></param>
+        /// <param name="size"></param>
+        public CapacityDescriptor(IntPtr buffer, int offset, int size)
+            : base(buffer, size)
+        {
+            byte b;
+
+            NumberOfBlocks = Get32(offset);
+
+            b = Get8(offset + 4);
+            DescType = (DescriptorType)(b & 0x03);
+            FormatType = (byte)(b >> 2);
+
+            BlockLength = Get24(offset + 5);
+        }
+        #endregion
+    }
+}