/// <summary>
///
/// </summary>
/// <returns></returns>
public CommandStatus ReadFormatCapacities(bool all, out IList<CapacityDescriptor> caplist)
{
caplist = new List<CapacityDescriptor>();
if (m_logger != null)
{
string args = all.ToString() + ", out caplist";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadFormatCapacities(" + args + ")"));
}
int len;
using (Command cmd = new Command(ScsiCommandCode.ReadFormatCapacities, 10, 8, Command.CmdDirection.In, 60))
{
cmd.SetCDB16(7, 8);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
len = cmd.GetBuffer8(3) + 4;
}
using (Command cmd = new Command(ScsiCommandCode.ReadFormatCapacities, 10, len, Command.CmdDirection.In, 60))
{
cmd.SetCDB16(7, (ushort)len);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
int offset = 4;
len = cmd.GetBuffer8(3) + 4;
while (offset < len)
{
caplist.Add(new CapacityDescriptor(cmd.GetBuffer(), offset, cmd.BufferSize));
offset += 8;
}
}
return CommandStatus.Success;
}
/// <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>
/// Perform a SCSI inquiry on the device to get information about the device
/// </summary>
/// <param name="result">The return value describing the inquiry results</param>
/// <returns></returns>
public CommandStatus Inquiry(out InquiryResult result)
{
if (m_logger != null)
{
string args = "out result";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.Inquiry(" + args + ")"));
}
result = null;
byte len = 0;
using (Command cmd = new Command(ScsiCommandCode.Inquiry, 6, 36, Command.CmdDirection.In, 10))
{
cmd.SetCDB16(3, 36);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
len = cmd.GetBuffer8(4);
len += 5;
if (len <= cmd.BufferSize)
{
result = new InquiryResult(cmd.GetBuffer(), len);
if (m_logger != null)
m_logger.DumpBuffer(9, "Raw Inquiry Result", cmd.GetBuffer(), len);
return CommandStatus.Success;
}
//
// As an oddity, the Sony DW-G120A only supports requests that are an even number
// of bytes.
//
if ((len % 2) == 1)
len = (byte)((len / 2 * 2) + (((len % 2) == 1) ? 2 : 0));
}
using (Command cmd = new Command(ScsiCommandCode.Inquiry, 6, len, Command.CmdDirection.In, 100))
{
cmd.SetCDB8(4, len);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
result = new InquiryResult(cmd.GetBuffer(), cmd.BufferSize);
if (m_logger != null)
m_logger.DumpBuffer(9, "Raw Inquiry Result", cmd.GetBuffer(), cmd.BufferSize);
}
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="polled"></param>
/// <param name="request"></param>
/// <param name="result"></param>
/// <returns></returns>
public CommandStatus GetEventStatusNotification(bool polled, NotificationClass request, out EventStatusNotification result)
{
if (m_logger != null)
{
string args = polled.ToString() + ", " + request.ToString() + ", out result";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.GetEventStatusNotification(" + args + ")"));
}
ushort len = 0;
result = null;
using (Command cmd = new Command(ScsiCommandCode.GetEventStatusNotification, 10, 4, Command.CmdDirection.In, 10))
{
if (polled)
cmd.SetCDB8(1, 1);
cmd.SetCDB8(4, (byte)request);
cmd.SetCDB16(7, 4);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
byte n = cmd.GetBuffer8(2);
if ((n & 0x80) != 0)
{
// There are no events, just capture the header
result = new EventStatusNotification(cmd.GetBuffer(), cmd.BufferSize);
return CommandStatus.Success;
}
//
// There are event notifications to be grabbed, allocate space for these
//
len = cmd.GetBuffer16(0);
len += 4; // For the length field
}
using (Command cmd = new Command(ScsiCommandCode.GetEventStatusNotification, 10, len, Command.CmdDirection.In, 10))
{
if (polled)
cmd.SetCDB8(1, 1);
cmd.SetCDB8(4, (byte)request);
cmd.SetCDB16(7, len);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
result = new EventStatusNotification(cmd.GetBuffer(), cmd.BufferSize);
}
return CommandStatus.Success;
}
