private bool currentDevice = false; // false = Master, true = slave
public AtapiHandler(int BusToUse)
{
UsedBus = ATABus.Busses[BusToUse];
if (GetStatus() == (Statuses)0xFF)
{
UsedBus = null;
return;
}
UsedBus.Control.Byte = (byte)Controlles.nIEN;
Identify();
}
private void Identify()
{
SelectDrive(false, 0);
UsedBus.LBA3.Byte = 0x00;
UsedBus.LBA1.Byte = 0x00;
UsedBus.LBA2.Byte = 0x00;
SendCommand(Commands.Identify);
Statuses status;
if (UsedBus != null)
{
if (UsedBus.LBA2.Byte != 0x00 || UsedBus.LBA3.Byte != 0x00)
{
//Device is not ATA
if (UsedBus.LBA2.Byte == 0x14 && UsedBus.LBA3.Byte == 0xEB)
{
}
UsedBus = null;
}
}
if (UsedBus != null)
{
do
{
status = GetStatus();
if ((status & Statuses.ERR) != 0)
{
UsedBus = null;
break;
}
} while ((status & Statuses.DRQ) == 0);
}
if (UsedBus != null)
{
UInt16[] Buffer = new UInt16[256];
UsedBus.Data.Read16(Buffer);
mSerialNo = GetString(Buffer, 10, 20);
Console.WriteLine(mSerialNo);
mFirmwareRev = GetString(Buffer, 23, 8);
mModelNo = GetString(Buffer, 27, 40);
mBlockCount = ((UInt32)Buffer[61] << 16 | Buffer[60]) - 1;
bool xLba48Capable = (Buffer[83] & 0x400) != 0;
if (xLba48Capable)
{
mBlockCount = ((UInt64)Buffer[102] << 32 | (UInt64)Buffer[101] << 16 | (UInt64)Buffer[100]) - 1;
Mode = AtapioMode.LBA48;
}
}
}
private void Identify()
{
SelectDrive(false, 0);
UsedBus.LBA3.Byte = 0x00;
UsedBus.LBA1.Byte = 0x00;
UsedBus.LBA2.Byte = 0x00;
//SendCommand(Commands.Packet);
Statuses s = GetStatus();
SendCommand(Commands.PacketIdentify);
Statuses status;
if (UsedBus != null)
{
if (UsedBus.LBA2.Byte != 0x00 || UsedBus.LBA3.Byte != 0x00)
{
//Device is not ATA
if (UsedBus.LBA2.Byte == 0x14 && UsedBus.LBA3.Byte == 0xEB)
{
}
}
}
if (UsedBus != null)
{
do
{
status = GetStatus();
if ((status & Statuses.ERR) != 0)
{
UsedBus = null;
break;
}
} while ((status & Statuses.DRQ) == 0);
}
if (UsedBus != null)
{
UInt16[] Buffer = new UInt16[256];
UsedBus.Data.Read16(Buffer);
mSerialNo = GetString(Buffer, 10, 20);
mFirmwareRev = GetString(Buffer, 23, 8);
mModelNo = GetString(Buffer, 27, 40);
mBlockCount = ((UInt32)Buffer[61] << 16 | Buffer[60]) - 1;
}
}
private void SendCommand(Commands command)
{
UsedBus.Command.Byte = (byte)command;
Statuses status;
do
{
status = GetStatus();
if (status == 0x00)
{
UsedBus = null;
return;
}
} while ((status & Statuses.BSY) != 0);
if ((status & Statuses.ERR) != 0)
{
throw new Exception("Ata error");
}
}
