SCSI Library in C# - Burn CDs and DVDs, Access Hard Disks, etc.

using System.Diagnostics;
using System.Runtime.InteropServices;
using Helper;

namespace Scsi
{
	[StructLayout(LayoutKind.Sequential, Pack = 1)]
	public class ReadBufferCommand : FixedLengthScsiCommand
	{
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private const byte MODE_MASK = 0x1F;
		public ReadBufferCommand() : base(ScsiCommandCode.ReadBuffer) { }
		public ReadBufferCommand(byte bufferId, uint offset) : this() { this.BufferId = bufferId; this.BufferOffset = offset; }
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private byte byte1;
		public ReadBufferMode Mode
		{
			get { return (ReadBufferMode)Bits.GetValueMask(this.byte1, 0, MODE_MASK); }
			set { this.byte1 = Bits.PutValueMask(this.byte1, (byte)value, 0, MODE_MASK); }
		}
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private byte _BufferId;
		public byte BufferId { get { return this._BufferId; } set { this._BufferId = value; } }
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private byte _byte3; //MSB
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private byte _byte4;
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private byte _byte5; //LSB
		public uint BufferOffset
		{
			get { unchecked { return (uint)this._byte5 | ((uint)this._byte4 << 8) | ((uint)this._byte3 << 16); } }
			set { unchecked { this._byte5 = (byte)(value >> 0); this._byte4 = (byte)(value >> 8); this._byte3 = (byte)(value >> 16); } }
		}
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private byte _byte6; //MSB
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private byte _byte7;
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private byte _byte8; //LSB
		/// <summary>Do not use this value unless you are responsible for calling the <see cref="IScsiPassThrough.ExecuteCommand"/> method directly.</summary>
		public uint AllocationLength
		{
			get { unchecked { return (uint)this._byte8 | ((uint)this._byte7 << 8) | ((uint)this._byte6 << 16); } }
			set { unchecked { this._byte8 = (byte)(value >> 0); this._byte7 = (byte)(value >> 8); this._byte6 = (byte)(value >> 16); } }
		}
		[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		private CommandControl _Control;
		public override CommandControl Control { get { return this._Control; } set { this._Control = value; } }

		public override ScsiTimeoutGroup TimeoutGroup { get { return ScsiTimeoutGroup.Group1; } }
	}

	public enum ReadBufferMode : byte
	{
		CombinedHeaderAndData = 0x00,
		VendorSpecific = 0x01,
		Data = 0x02,
		Descriptor = 0x03,
		ReadDataFromEchoBuffer = 0x0A,
		EchoBufferDescriptor = 0x0B,
		EnableExpansionCommunicationsProtocolAndEchoBuffer = 0x1A,
		ErrorHistory = 0x1C,
	}
}