public static void DebugQueryStatus(IdeController !controller)
{
byte statusBits = controller.ReadAlternateStatusPort();
byte errorBits = controller.ReadErrorPort();
Tracing.Log(Tracing.Debug, "ATAcontroller: Status Register({0:x2}): ", statusBits);
Tracing.Log(Tracing.Debug, ((statusBits & (byte)ATA6.IdeStatus.BSY) > 0)
? "BSY " : "!bsy ");
Tracing.Log(Tracing.Debug, ((statusBits & (byte)ATA6.IdeStatus.DRDY) > 0)
? "DRDY " : "!drdy ");
Tracing.Log(Tracing.Debug, ((statusBits & (byte)ATA6.IdeStatus.DWF) > 0)
? "DWF " : "!dwf ");
Tracing.Log(Tracing.Debug, ((statusBits & (byte)ATA6.IdeStatus.DSC) > 0)
? "DSC " : "!dsc ");
Tracing.Log(Tracing.Debug, ((statusBits & (byte)ATA6.IdeStatus.DRQ) > 0)
? "DRQ " : "!drq ");
Tracing.Log(Tracing.Debug, ((statusBits & (byte)ATA6.IdeStatus.CORR) > 0)
? "CORR " : "!corr ");
Tracing.Log(Tracing.Debug, ((statusBits & (byte)ATA6.IdeStatus.IDX) > 0)
? "IDX " : "!idx");
Tracing.Log(Tracing.Debug, ((statusBits & (byte)ATA6.IdeStatus.ERR) > 0)
? "ERR " : "!err ");
Tracing.Log(Tracing.Debug, "\n");
Tracing.Log(Tracing.Debug, "ATAcontroller: Error Register:({0:x2}): ", errorBits);
Tracing.Log(Tracing.Debug, ((errorBits & (byte)ATA6.IdeError.UNC) > 0)
? "UNC " : "!unc ");
Tracing.Log(Tracing.Debug, ((errorBits & (byte)ATA6.IdeError.MC) > 0)
? "MC " : "!mc ");
Tracing.Log(Tracing.Debug, ((errorBits & (byte)ATA6.IdeError.IDNF) > 0)
? "IDNF " : "!idnf ");
Tracing.Log(Tracing.Debug, ((errorBits & (byte)ATA6.IdeError.ABRT) > 0)
? "ABRT " : "!abrt ");
Tracing.Log(Tracing.Debug, ((errorBits & (byte)ATA6.IdeError.MCR) > 0)
? "MCR " : "!mcr ");
Tracing.Log(Tracing.Debug, ((errorBits & (byte)ATA6.IdeError.TK0NF) > 0)
? "TK0NF " : "!tk0nf ");
Tracing.Log(Tracing.Debug, ((errorBits & (byte)ATA6.IdeError.AMNF) > 0)
? "AMNF " : "!amnf ");
Tracing.Log(Tracing.Debug, "\n");
ushort lbaLow = controller.ReadLBALowPort();
ushort lbaMid = controller.ReadLBAMidPort();
ushort lbaHigh = controller.ReadLBAHighPort();
Tracing.Log(Tracing.Debug, "LBA={0:x2},{1:x2},{2:x2}\n",
(UIntPtr)lbaHigh, (UIntPtr)lbaMid, (UIntPtr)lbaLow);
}
IdentifyDeviceInformation GetDeviceIdentification(IdeController !controller,
int devsel, bool atapi)
{
ushort[] identifyData = new ushort[256];
if (!controller.PollBSY(false))
{
// should fail here.
}
controller.SelectDevice(devsel, atapi);
//DebugStub.Print(" IDE GetDeviceIdentification starting\n");
bool iflag = PrivilegedGate.DisableInterrupts();
try {
controller.SetIdentifyInProgress(true);
controller.PollDRDY(true);
byte cmd = (atapi)? (byte)IdeCommand.IdentifyPacketDevice:
(byte)IdeCommand.IdentifyDevice;
controller.WriteCommandPort(cmd); //will post interrupt
controller.Delay400ns();
Tracing.Log(Tracing.Debug, "status={0}", (UIntPtr)controller.ReadFullStatus());
controller.PollDRDY(true); // Device indicates ready.
}
finally {
PrivilegedGate.RestoreInterrupts(iflag);
}
IdeConfig config = controller.GetConfig();
bool success = (config != null) && config.IdentifyEndEvent.WaitOne(TimeSpan.FromMilliseconds(250));
if (!success)
{
//DebugStub.Break();
Tracing.Log(Tracing.Debug, " IDE GetDeviceIdentification did NOT receive interrupt\n");
controller.SetIdentifyInProgress(false);
}
//DebugStub.Print(" IDE GetDeviceIdentification received interrupt\n");
// XXX: We should check for an Error condition here.
// XXX: We should check for the ATAPI signature here.
byte statusBits = controller.ReadAlternateStatusPort();
if ((statusBits & (byte)ATA6.IdeStatus.ERR) > 0)
{
Tracing.Log(Tracing.Debug, "ERR reported in status after IdentifyDevice!\n");
DebugStub.Break();
}
for (int i = 0; i < 256; i++)
{
identifyData[i] = controller.ReadDataPort();
}
IdentifyDeviceInformation ident = ParseIdentifyInformation(identifyData);
//// if (atapi)
if (ident.ModelNumber == "Virtual CD") // SECTOR_SIZE is actually 2048
{
ident.MaxLBASectors = 650 * 1024 * 1024 / IdeRequest.SECTOR_SIZE;
}
// for IdeDisk::ReadWrite tests
return(ident);
}