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cuetools.net/Bwg.Scsi/HeaderData.cs
2008-11-26 18:57:40 +00:00

143 lines
4.1 KiB
C#

//
// 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>
/// This class contains the header data read from a sector
/// </summary>
public class HeaderData : Result
{
#region public types
/// <summary>
/// The block type, see SCSI MMC spec
/// </summary>
public enum BlockTypeType : byte
{
/// <summary>
/// See SCSI MMC spec
/// </summary>
UserDataBlock = 0x00,
/// <summary>
/// See SCSI MMC spec
/// </summary>
FourthRunInBlock = 0x01,
/// <summary>
/// See SCSI MMC spec
/// </summary>
ThirdRunInBlock = 0x02,
/// <summary>
/// See SCSI MMC spec
/// </summary>
SecondRunInBlock = 0x03,
/// <summary>
/// See SCSI MMC spec
/// </summary>
FirstRunInBlock = 0x04,
/// <summary>
/// See SCSI MMC spec
/// </summary>
LinkBlock = 0x05,
/// <summary>
/// See SCSI MMC spec
/// </summary>
SecondRunOutBlock = 0x06,
/// <summary>
/// See SCSI MMC spec
/// </summary>
FirstRunOutBlock = 0x07
} ;
/// <summary>
/// The data mode for the sector (only applies if track mode is 0x04)
/// </summary>
public enum DataTypeType : byte
{
/// <summary>
/// Mode 0 data, 2336 bytes of zero
/// </summary>
Mode0Data = 0x00,
/// <summary>
/// Mode 1 data, 2048 bytes of user data
/// </summary>
Mode1Data = 0x01,
/// <summary>
/// Mode 2 data, multiple forms of data
/// </summary>
Mode2Data = 0x02,
/// <summary>
/// Reserved, should not be returned by a drive
/// </summary>
Reserved = 0x03
} ;
#endregion
#region public data members
/// <summary>
/// The time data read from the sector
/// </summary>
public readonly MinuteSecondFrame MSF;
/// <summary>
/// The block type, see SCSI MMC spec
/// </summary>
public readonly BlockTypeType BlockType;
/// <summary>
/// The data type, see SCSI MMC spec
/// </summary>
public readonly DataTypeType DataType;
#endregion
/// <summary>
/// Create the header data object from a buffer containing the header data
/// </summary>
/// <param name="buf">buffer containing the data</param>
/// <param name="size">size of the data</param>
public HeaderData(IntPtr buf, int size)
: base(buf, size)
{
byte b ;
MSF = new MinuteSecondFrame(Get8(0), Get8(1), Get8(2));
b = Get8(3);
BlockType = (BlockTypeType)((b >> 5) & 0x07);
DataType = (DataTypeType)(b & 0x03);
}
}
}