Initial checkin

Bwg.Scsi/SpeedDescriptor.cs

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+//
+// BwgBurn - CD-R/CD-RW/DVD-R/DVD-RW burning program for Windows XP
+// 
+// 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 SpeedDescriptor : Result
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        public readonly Device.RotationalControl WRC;
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public readonly bool Exact;
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public readonly bool MRW;
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public readonly uint EndLBA;
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public readonly int ReadSpeed;
+
+        /// <summary>
+        /// 
+        /// </summary>
+        public readonly int WriteSpeed;
+
+        #region constructor
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="buffer"></param>
+        /// <param name="offset"></param>
+        /// <param name="size"></param>
+        public SpeedDescriptor(IntPtr buffer, int offset, int size)
+            : base(buffer, size)
+        {
+            byte b = Get8(offset);
+
+            if (((b & 0x03) >> 3 == 0))
+                WRC = Device.RotationalControl.CLVandNonPureCav ;
+            else if (((b & 0x03) >> 3) == 1)
+                WRC = Device.RotationalControl.PureCav ;
+
+            if ((b & 0x02) == 0)
+                Exact = false ;
+            else
+                Exact = true ;
+
+            if ((b & 0x01) == 0)
+                MRW = false ;
+            else
+                MRW = true ;
+
+            EndLBA = Get32(offset + 4);
+            ReadSpeed = Get32Int(offset + 8);
+            WriteSpeed = Get32Int(offset + 12);
+        }
+
+        /// <summary>
+        /// Return a human readable string representing this object
+        /// </summary>
+        /// <returns></returns>
+        public override string ToString()
+        {
+            string str = string.Empty;
+
+            str += "WRC=" + WRC.ToString();
+            str += ", Exact=" + Exact.ToString();
+            str += ", MRW=" + MRW.ToString();
+            str += ", EndLba=" + EndLBA.ToString();
+            str += ", Read=" + ReadSpeed.ToString();
+            str += ", Write=" + WriteSpeed.ToString();
+
+            return str;
+        }
+        #endregion
+    }
+}