/// <summary>
/// Returns the start address of the Layer 0 middle zone (DVD+R DL, DVD-R DL)
/// </summary>
/// <param name="isfixed">return value, if true, the middle zone start is changeable</param>
/// <param name="location">return value, the location of the L0 middle zone</param>
/// <returns>status of the command</returns>
public CommandStatus ReadDvdMiddleZoneStartAddr(out bool isfixed, out uint location)
{
if (m_logger != null)
{
string args = "ReadDvdMiddleZoneStartAddr, out bool isfixed, out uint size";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadDvdStructure(" + args + ")"));
}
location = 0;
isfixed = false;
using (Command cmd = new Command(ScsiCommandCode.ReadDvdStructure, 12, 12, Command.CmdDirection.In, 5 * 60))
{
cmd.SetCDB8(7, 0x21);
cmd.SetCDB8(8, 12);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
if ((cmd.GetBuffer8(4) & 0x80) != 0)
isfixed = true;
location = cmd.GetBuffer32(8);
}
return CommandStatus.Success;
}
/// <summary>
/// This method returns the remapping address (DVD-R DL(
/// </summary>
/// <param name="location">the remapping address</param>
/// <returns>the command status</returns>
public CommandStatus ReadDvdRemappingAddress(out uint location)
{
if (m_logger != null)
{
string args = "ReadDvdRemappingAddress, out uint size";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadDvdStructure(" + args + ")"));
}
location = 0;
using (Command cmd = new Command(ScsiCommandCode.ReadDvdStructure, 12, 12, Command.CmdDirection.In, 5 * 60))
{
cmd.SetCDB8(7, 0x24);
cmd.SetCDB8(8, 12);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
location = cmd.GetBuffer32(8);
}
return CommandStatus.Success;
}
/// <summary>
/// Query the media for the spare sectors available
/// </summary>
/// <param name="primary">the number of primary spare sectors available</param>
/// <param name="sec_avail">the number of secondary spare sectors available</param>
/// <param name="sec_total">the number of secondary spare sectors total</param>
/// <returns></returns>
public CommandStatus ReadDVDRamSpareAreaInfo(out uint primary, out uint sec_avail, out uint sec_total)
{
primary = 0;
sec_avail = 0;
sec_total = 0;
if (m_logger != null)
{
string args = "out primary, out sec_avail, out sec_total";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadDVDRamSpareAreaInfo(" + args + ")"));
}
using (Command cmd = new Command(ScsiCommandCode.ReadDvdStructure, 12, 2048, Command.CmdDirection.In, 60))
{
cmd.SetCDB8(7, 0x0a); // Read manufacturing information
cmd.SetCDB16(8, 16); // Up to 2k of data
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
primary = cmd.GetBuffer32(4);
sec_avail = cmd.GetBuffer32(8);
sec_total = cmd.GetBuffer32(12);
}
return CommandStatus.Success;
}
/// <summary>
/// Returns the size of layer 0 for DL media (DVD+R DL and DVD-R DL)
/// </summary>
/// <param name="isfixed">return value, if true size of L0 is changable</param>
/// <param name="size">return value, the current size of L0</param>
/// <returns>status of the command</returns>
public CommandStatus ReadDvdLayer0Size(out bool isfixed, out uint size)
{
if (m_logger != null)
{
string args = "ReadDvdLayer0Size, out bool isfixed, out uint size";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadDvdStructure(" + args + ")"));
}
size = 0;
isfixed = false;
using (Command cmd = new Command(ScsiCommandCode.ReadDvdStructure, 12, 12, Command.CmdDirection.In, 5 * 60))
{
cmd.SetCDB8(7, 0x20); // Read manufacturing information
cmd.SetCDB8(8, 12);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
if ((cmd.GetBuffer8(4) & 0x80) != 0)
isfixed = true;
size = cmd.GetBuffer32(8);
}
return CommandStatus.Success;
}
/// <summary>
///
/// </summary>
/// <param name="lba"></param>
/// <param name="blocklen"></param>
/// <returns></returns>
public CommandStatus ReadCapacity(out uint lba, out uint blocklen)
{
if (m_logger != null)
{
string args = "out lba, out blocklen";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadCapacity(" + args + ")"));
}
blocklen = 0;
lba = 0;
using (Command cmd = new Command(ScsiCommandCode.ReadCapacity, 10, 12, Command.CmdDirection.In, 60 * 5))
{
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
lba = cmd.GetBuffer32(0);
blocklen = cmd.GetBuffer32(4);
}
return CommandStatus.Success;
}
/// <summary>
/// This method returns the buffer capacity for the pass through SCSI device.
/// </summary>
/// <param name="blocks">if true, the length and available is given in blocks, otherwise bytes</param>
/// <param name="length">return vaue, the length of the buffer</param>
/// <param name="avail">return value, the available space in the buffer</param>
/// <returns>status of the command</returns>
public CommandStatus ReadBufferCapacity(bool blocks, out int length, out int avail)
{
if (m_logger != null)
{
string args = blocks.ToString() + ", out length, out available";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 9, "Bwg.Scsi.Device.ReadBufferCapacity(" + args + ")"));
}
length = 0;
avail = 0;
using (Command cmd = new Command(ScsiCommandCode.ReadBufferCapacity, 10, 12, Command.CmdDirection.In, 60 * 5))
{
cmd.SetCDB16(7, 12);
if (blocks)
cmd.SetCDB8(1, 1);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
length = (int)cmd.GetBuffer32(4);
avail = (int)cmd.GetBuffer32(8);
}
return CommandStatus.Success;
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public CommandStatus GetPerformance(uint lba, PerformanceList.DataType rwtype, PerformanceList.ExceptType extype, out PerformanceList list)
{
list = null;
if (m_logger != null)
{
string args = rwtype.ToString() + ", " + extype.ToString() + ", list";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.GetPerformance(" + args + ")"));
}
uint len = 0;
using (Command cmd = new Command(ScsiCommandCode.GetPerformance, 12, 24, Command.CmdDirection.In, 10))
{
byte b = 0x10;
if (rwtype == PerformanceList.DataType.WriteData)
b |= 0x04 ;
b |= (byte)extype;
cmd.SetCDB8(1, b);
cmd.SetCDB16(8, 1);
if (extype == PerformanceList.ExceptType.Entire)
cmd.SetCDB32(2, lba);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
len = cmd.GetBuffer32(0);
len += 4; // For the length field
}
using (Command cmd = new Command(ScsiCommandCode.GetPerformance, 12, (ushort)len, Command.CmdDirection.In, 10))
{
byte b = 0x10;
if (rwtype == PerformanceList.DataType.WriteData)
b |= 0x04;
b |= (byte)extype;
cmd.SetCDB8(1, b);
if (extype == PerformanceList.ExceptType.Entire)
cmd.SetCDB32(2, lba);
cmd.SetCDB16(8, (ushort)((len - 8) / 16));
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
list = new PerformanceList(cmd.GetBuffer(), cmd.BufferSize);
}
return CommandStatus.Success;
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public CommandStatus GetSpeed(out SpeedDescriptorList list)
{
ushort initial_size = 8 + 4 * 16;
list = null;
if (m_logger != null)
{
string args = string.Empty;
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.GetWriteSpeed(" + args + ")"));
}
uint len = 0;
using (Command cmd = new Command(ScsiCommandCode.GetPerformance, 12, initial_size, Command.CmdDirection.In, 10 * 60))
{
cmd.SetCDB16(8, (ushort)((initial_size - 8) / 16));
cmd.SetCDB8(10, 3);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
len = cmd.GetBuffer32(0);
len += 4; // For the length field
}
using (Command cmd = new Command(ScsiCommandCode.GetPerformance, 12, (ushort)len, Command.CmdDirection.In, 10 * 60))
{
cmd.SetCDB16(8, (ushort)((len - 8) / 16));
cmd.SetCDB8(10, 3);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
list = new SpeedDescriptorList(cmd.GetBuffer(), cmd.BufferSize);
}
return CommandStatus.Success;
}
/// <summary>
///
/// </summary>
/// <param name="type"></param>
/// <param name="start"></param>
/// <param name="result"></param>
/// <returns></returns>
public CommandStatus GetConfiguration(GetConfigType type, ushort start, out FeatureList result)
{
if (m_logger != null)
{
string args = type.ToString() + ", " + start.ToString() + ", out result";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.GetConfiguration(" + args + ")"));
}
uint len = 0;
result = null;
if (type == GetConfigType.Reserved)
throw new Exception("cannot use reserved value") ;
using (Command cmd = new Command(ScsiCommandCode.GetConfiguration, 10, 8, Command.CmdDirection.In, 10))
{
cmd.SetCDB8(1, (byte)type);
cmd.SetCDB16(2, start);
cmd.SetCDB16(7, 8);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
len = cmd.GetBuffer32(0);
len += 4; // Add four for the length field
}
using (Command cmd = new Command(ScsiCommandCode.GetConfiguration, 10, (ushort)len, Command.CmdDirection.In, 10))
{
cmd.SetCDB8(1, (byte)type);
cmd.SetCDB16(2, start);
cmd.SetCDB16(7, (ushort)len);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
result = new FeatureList(cmd.GetBuffer(), cmd.BufferSize);
}
return CommandStatus.Success;
}
