/// <summary>
/// This method reads the PAC data for a blu-ray disk
/// </summary>
/// <param name="pacid">the pac id of the pac to read</param>
/// <param name="pacfmt">the format of the pac to read</param>
/// <param name="data">return storage for the pac data</param>
/// <returns></returns>
public CommandStatus ReadDiskStructurePac(uint pacid, byte pacfmt, out byte [] data)
{
data = null;
if (m_logger != null)
{
string args = "out byte[] data";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadDvdStructurePac(" + args + ")"));
}
ushort len = 4;
using (Command cmd = new Command(ScsiCommandCode.ReadDvdStructure, 12, len, Command.CmdDirection.In, 60))
{
cmd.SetCDB24(2, pacid);
cmd.SetCDB8(6, pacfmt);
cmd.SetCDB8(7, 0x30); // Read PAC data
cmd.SetCDB16(8, len);
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
len = (ushort)(cmd.GetBuffer16(0) + 2);
if (len == 2)
{
data = new byte[0];
return CommandStatus.Success;
}
Debug.Assert(len < 8192);
}
using (Command cmd = new Command(ScsiCommandCode.ReadDvdStructure, 12, len, Command.CmdDirection.In, 60))
{
cmd.SetCDB24(2, pacid);
cmd.SetCDB8(6, pacfmt);
cmd.SetCDB8(7, 0x30); // Read manufacturing information
cmd.SetCDB16(8, len); // Up to 2k of data
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
len = (ushort)(cmd.GetBuffer16(0) + 2);
data = new byte[len];
Marshal.Copy(cmd.GetBuffer(), data, 0, len);
}
return CommandStatus.Success;
}
/// <summary>
/// Read the subchannel data from a series of sectors
/// </summary>
/// <param name="sector"></param>
/// <param name="length"></param>
/// <param name="data"></param>
/// <param name="mode">the subchannel mode</param>
/// <param name="timeout">timeout (in seconds)</param>
/// <returns></returns>
public CommandStatus ReadSubChannel(byte mode, uint sector, uint length, ref byte[] data, int timeout)
{
byte bytes_per_sector;
if (m_logger != null)
{
string args = sector.ToString() + ", " + length.ToString() + ", data";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadSubChannel(" + args + ")"));
}
if (mode != 1 && mode != 2 && mode != 4)
throw new Exception("invalid read mode for ReadSubchannel() call");
bytes_per_sector = 96;
if (mode == 2)
bytes_per_sector = 16;
if (data.GetLength(0) < length * bytes_per_sector)
throw new Exception("data buffer is not large enough to hold the data requested");
using (Command cmd = new Command(ScsiCommandCode.ReadCd, 12, (int)(length * bytes_per_sector), Command.CmdDirection.In, timeout))
{
byte b = (byte)(1 << 2);
cmd.SetCDB8(1, b);
cmd.SetCDB32(2, sector); // The sector number to start with
cmd.SetCDB24(6, length); // The length in sectors
cmd.SetCDB8(10, mode); // Corrected, de-interleaved P - W data
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
Marshal.Copy(cmd.GetBuffer(), data, 0, (int)(length * bytes_per_sector));
}
return CommandStatus.Success ;
}
/// <summary>
/// This method reads subheader CD data from a data mode 2 track
/// </summary>
/// <param name="sector">the sector # of the data to read</param>
/// <param name="hdr">return subheader data</param>
/// <returns></returns>
public CommandStatus ReadCD(uint sector, out SubheaderData hdr)
{
hdr = null ;
if (m_logger != null)
{
string args = sector.ToString() + ", out SubheaderData hdr";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadCD(" + args + ")"));
}
using (Command cmd = new Command(ScsiCommandCode.ReadCd, 12, 4, Command.CmdDirection.In, 10))
{
cmd.SetCDB32(2, sector);
cmd.SetCDB24(6, 1);
cmd.SetCDB8(9, 0x40); // Header data only
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
hdr = new SubheaderData(cmd.GetBuffer(), cmd.BufferSize);
}
return CommandStatus.Success;
}
/// <summary>
///
/// </summary>
/// <param name="submode">subchannel mode</param>
/// <param name="start"></param>
/// <param name="length"></param>
/// <param name="data">the memory area </param>
/// <param name="timeout">timeout (in seconds)</param>
/// <returns></returns>
public CommandStatus ReadCDDA(SubChannelMode submode, uint start, uint length, IntPtr data, int timeout)
{
if (m_logger != null)
{
string args = start.ToString() + ", " + length.ToString() + ", data";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadCDDA(" + args + ")"));
}
byte mode = (byte)(submode == SubChannelMode.QOnly ? 1 : submode == SubChannelMode.RWMode ? 2 : 0);
int size = 4 * 588 + (submode == SubChannelMode.QOnly ? 16 : submode == SubChannelMode.RWMode ? 96 : 0);
using (Command cmd = new Command(ScsiCommandCode.ReadCDDA, 12, data, (int)length * size, Command.CmdDirection.In, timeout))
{
cmd.SetCDB8(1, 0 << 5); // lun
cmd.SetCDB32(2, start);
cmd.SetCDB24(7, length);
cmd.SetCDB8(10, mode); // Subchannel
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
}
return CommandStatus.Success;
}
/// <summary>
///
/// </summary>
/// <param name="mainmode">main channel mode</param>
/// <param name="submode">subchannel mode</param>
/// <param name="c2mode">C2 errors report mode</param>
/// <param name="exp">expected sector type</param>
/// <param name="dap"></param>
/// <param name="start"></param>
/// <param name="length"></param>
/// <param name="data">the memory area </param>
/// <param name="timeout">timeout (in seconds)</param>
/// <returns></returns>
public CommandStatus ReadCDAndSubChannel(MainChannelSelection mainmode, SubChannelMode submode, C2ErrorMode c2mode, byte exp, bool dap, uint start, uint length, IntPtr data, int timeout)
{
if (m_logger != null)
{
string args = exp.ToString() + ", " + dap.ToString() + ", " + start.ToString() + ", " + length.ToString() + ", data";
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadCD(" + args + ")"));
}
int size = (4 * 588 +
(submode == SubChannelMode.QOnly ? 16 : submode == SubChannelMode.RWMode ? 96 : 0) +
(c2mode == C2ErrorMode.Mode294 ? 294 : c2mode == C2ErrorMode.Mode296 ? 296 : 0)) * (int) length;
byte mode = (byte) (submode == SubChannelMode.QOnly ? 2 : submode == SubChannelMode.RWMode ? 4 : 0);
if (exp != 1 && exp != 2 && exp != 3 && exp != 4 && exp != 5)
return CommandStatus.NotSupported;
using (Command cmd = new Command(ScsiCommandCode.ReadCd, 12, data, size, Command.CmdDirection.In, timeout))
{
byte b = (byte)((exp & 0x07) << 2);
if (dap)
b |= 0x02;
byte byte9 = (byte)(mainmode == MainChannelSelection.UserData ? 0x10 : mainmode == MainChannelSelection.F8h ? 0xF8 : 0);
if (c2mode == C2ErrorMode.Mode294)
byte9 |= 0x02;
else if (c2mode == C2ErrorMode.Mode296)
byte9 |= 0x04;
cmd.SetCDB8(1, b);
cmd.SetCDB32(2, start);
cmd.SetCDB24(6, length);
cmd.SetCDB8(9, byte9); // User data + possibly c2 errors
cmd.SetCDB8(10, mode); // Subchannel
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
}
return CommandStatus.Success;
}
/// <summary>
///
/// </summary>
/// <param name="exp"></param>
/// <param name="dap"></param>
/// <param name="start"></param>
/// <param name="length"></param>
/// <param name="data">the memory area </param>
/// <param name="size">the size of the memory area given by the data parameter</param>
/// <returns></returns>
public CommandStatus ReadCD(byte exp, bool dap, uint start, uint length, IntPtr data, int size)
{
if (m_logger != null)
{
string args = exp.ToString() + ", " + dap.ToString() + ", " + start.ToString() + ", " + length.ToString() + ", data, " + size.ToString();
m_logger.LogMessage(new UserMessage(UserMessage.Category.Debug, 8, "Bwg.Scsi.Device.ReadCD(" + args + ")"));
}
if (exp != 1 && exp != 2 && exp != 3 && exp != 4 && exp != 5)
return CommandStatus.NotSupported;
using (Command cmd = new Command(ScsiCommandCode.ReadCd, 12, data, size, Command.CmdDirection.In, 5 * 60))
{
byte b = (byte)((exp & 0x07) << 2);
if (dap)
b |= 0x02;
cmd.SetCDB8(1, b);
cmd.SetCDB32(2, start);
cmd.SetCDB24(6, length);
cmd.SetCDB8(9, 0x10); // User data only
CommandStatus st = SendCommand(cmd);
if (st != CommandStatus.Success)
return st;
}
return CommandStatus.Success;
}
