public PATABase(ATAIOPorts anIO, ATA.ControllerID aControllerId, ATA.BusPosition aBusPosition)
{
IO = anIO;
controllerId = aControllerId;
busPosition = aBusPosition;
// Disable IRQs, we use polling currently
SelectDrive(0, false);
IO.Control.Write_Byte((byte)0x02);
mDriveType = DiscoverDrive();
if (mDriveType == SpecLevel.PATAPI)
{
blockSize = 2048;
}
if (mDriveType == SpecLevel.PATA ||
mDriveType == SpecLevel.PATAPI)
{
InitDrive();
initialised = true;
}
}
/// <summary>
/// Initialises a particular drive on the ATA bus.
/// </summary>
/// <param name="ctrlId">The controller ID of the device.</param>
/// <param name="busPos">The bus position of the device.</param>
public static void InitDrive(ATA.ControllerID ctrlId, ATA.BusPosition busPos)
{
//Get the IO ports for the correct bus
ATAIOPorts theIO = ctrlId == ATA.ControllerID.Primary ? ATAIO1 : ATAIO2;
//Create / init the device on the bus
try
{
PATABase ThePATABase = new PATABase(theIO, ctrlId, busPos);
//If the device was detected as present:
if (ThePATABase.DriveType != PATABase.SpecLevel.Null)
{
//If the device was actually a PATA device:
if (ThePATABase.DriveType == PATABase.SpecLevel.PATA)
{
//Add it to the list of devices.
try
{
DeviceManager.AddDevice(new PATA(ThePATABase));
}
catch
{
ExceptionMethods.Throw(new FOS_System.Exception("Error initialising PATA device."));
}
}
else if (ThePATABase.DriveType == PATABase.SpecLevel.PATAPI)
{
// Add a PATAPI device
try
{
DeviceManager.AddDevice(new PATAPI(ThePATABase));
}
catch
{
ExceptionMethods.Throw(new FOS_System.Exception("Error initialising PATAPI device."));
}
}
//TODO: Remove the SATA/SATAPI initialisation from here. It should be done
// in the ATAManager.Init method.
else if (ThePATABase.DriveType == PATABase.SpecLevel.SATA)
{
// Add a SATA device
try
{
DeviceManager.AddDevice(new SATA());
}
catch
{
ExceptionMethods.Throw(new FOS_System.Exception("Error initialising SATA device."));
}
}
else if (ThePATABase.DriveType == PATABase.SpecLevel.SATAPI)
{
// Add a SATAPI device
try
{
DeviceManager.AddDevice(new SATAPI());
}
catch
{
ExceptionMethods.Throw(new FOS_System.Exception("Error initialising SATAPI device."));
}
}
}
}
catch
{
ExceptionMethods.Throw(new FOS_System.Exception((FOS_System.String)"Error initialising PATA Base device. Controller ID: " +
(ctrlId == ATA.ControllerID.Primary ? "Primary" : "Secondary") + " , Position: " +
(busPos == ATA.BusPosition.Master ? "Master" : "Slave")));
}
}
