/// <summary>Sends the Plextor READ CD-DA command</summary>
/// <returns><c>true</c> if the command failed and <paramref name="senseBuffer" /> contains the sense buffer.</returns>
/// <param name="buffer">Buffer where the Plextor READ CD-DA response will be stored</param>
/// <param name="senseBuffer">Sense buffer.</param>
/// <param name="timeout">Timeout in seconds.</param>
/// <param name="duration">Duration in milliseconds it took for the device to execute the command.</param>
/// <param name="lba">Start block address.</param>
/// <param name="transferLength">How many blocks to read.</param>
/// <param name="blockSize">Block size.</param>
/// <param name="subchannel">Subchannel selection.</param>
public bool PlextorReadCdDa(out byte[] buffer, out byte[] senseBuffer, uint lba, uint blockSize,
uint transferLength, PlextorSubchannel subchannel, uint timeout,
out double duration)
{
senseBuffer = new byte[32];
byte[] cdb = new byte[12];
cdb[0] = (byte)ScsiCommands.ReadCdDa;
cdb[2] = (byte)((lba & 0xFF000000) >> 24);
cdb[3] = (byte)((lba & 0xFF0000) >> 16);
cdb[4] = (byte)((lba & 0xFF00) >> 8);
cdb[5] = (byte)(lba & 0xFF);
cdb[6] = (byte)((transferLength & 0xFF000000) >> 24);
cdb[7] = (byte)((transferLength & 0xFF0000) >> 16);
cdb[8] = (byte)((transferLength & 0xFF00) >> 8);
cdb[9] = (byte)(transferLength & 0xFF);
cdb[10] = (byte)subchannel;
buffer = new byte[blockSize * transferLength];
LastError = SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration,
out bool sense);
Error = LastError != 0;
DicConsole.DebugWriteLine("SCSI Device",
"Plextor READ CD-DA (LBA: {1}, Block Size: {2}, Transfer Length: {3}, Subchannel: {4}, Sense: {5}, Last Error: {6}) took {0} ms.",
duration, lba, blockSize, transferLength, subchannel, sense, LastError);
return(sense);
}
bool ReadPlextorWithSubchannel(out byte[] cmdBuf, out byte[] senseBuf, uint firstSectorToRead, uint blockSize,
uint blocksToRead, PlextorSubchannel supportedPlextorSubchannel,
out double cmdDuration)
{
bool sense;
cmdBuf = null;
if (supportedPlextorSubchannel == PlextorSubchannel.None)
{
sense = _dev.PlextorReadCdDa(out cmdBuf, out senseBuf, firstSectorToRead, blockSize, blocksToRead,
supportedPlextorSubchannel, 0, out cmdDuration);
if (!sense)
{
return(false);
}
// As a workaround for some firmware bugs, seek far away.
_dev.PlextorReadCdDa(out _, out senseBuf, firstSectorToRead - 32, blockSize, blocksToRead,
supportedPlextorSubchannel, 0, out _);
sense = _dev.PlextorReadCdDa(out cmdBuf, out senseBuf, firstSectorToRead, blockSize, blocksToRead,
supportedPlextorSubchannel, _dev.Timeout, out cmdDuration);
return(sense);
}
byte[] subBuf;
uint subSize = supportedPlextorSubchannel == PlextorSubchannel.Q16 ? 16u : 96u;
sense = _dev.PlextorReadCdDa(out byte[] dataBuf, out senseBuf, firstSectorToRead, 2352, blocksToRead,
PlextorSubchannel.None, 0, out cmdDuration);
if (!sense)
{
sense = _dev.PlextorReadCdDa(out subBuf, out senseBuf, firstSectorToRead, subSize, blocksToRead,
supportedPlextorSubchannel, 0, out cmdDuration);
if (!sense)
{
cmdBuf = new byte[(2352 * blocksToRead) + (subSize * blocksToRead)];
for (int b = 0; b < blocksToRead; b++)
{
Array.Copy(dataBuf, 2352 * b, cmdBuf, (2352 + subSize) * b, 2352);
Array.Copy(subBuf, subSize * b, cmdBuf, ((2352 + subSize) * b) + 2352, subSize);
}
return(false);
}
}
// As a workaround for some firmware bugs, seek far away.
_dev.PlextorReadCdDa(out _, out senseBuf, firstSectorToRead - 32, blockSize, blocksToRead,
supportedPlextorSubchannel, 0, out _);
sense = _dev.PlextorReadCdDa(out dataBuf, out senseBuf, firstSectorToRead, 2352, blocksToRead,
PlextorSubchannel.None, 0, out cmdDuration);
if (sense)
{
return(true);
}
sense = _dev.PlextorReadCdDa(out subBuf, out senseBuf, firstSectorToRead, subSize, blocksToRead,
supportedPlextorSubchannel, 0, out cmdDuration);
if (sense)
{
return(true);
}
cmdBuf = new byte[(2352 * blocksToRead) + (subSize * blocksToRead)];
for (int b = 0; b < blocksToRead; b++)
{
Array.Copy(dataBuf, 2352 * b, cmdBuf, (2352 + subSize) * b, 2352);
Array.Copy(subBuf, subSize * b, cmdBuf, ((2352 + subSize) * b) + 2352, subSize);
}
return(false);
}
