protected UHCI_qTD_Struct *CreateQTD_IO(UHCI_QueueHead_Struct *uQH, uint *next, byte direction, bool toggle, ushort tokenBytes, byte device, byte endpoint, uint packetSize)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Create qTD IO");
BasicConsole.DelayOutput(5);
#endif
UHCI_qTD_Struct *td = AllocQTD(next);
UHCI_qTD.SetPacketID(td, direction);
if (tokenBytes != 0)
{
UHCI_qTD.SetMaxLength(td, (ushort)((tokenBytes - 1u) & 0x7FFu));
}
else
{
UHCI_qTD.SetMaxLength(td, 0x7FF);
}
UHCI_qTD.SetDataToggle(td, toggle);
UHCI_qTD.SetC_ERR(td, 0x3);
UHCI_qTD.SetDeviceAddress(td, device);
UHCI_qTD.SetEndpoint(td, endpoint);
AllocQTDbuffer(td);
uQH->q_last = td;
return(td);
}
public PCIDevice(uint bus, uint slot, uint function)
{
this.bus = bus;
this.slot = slot;
this.function = function;
#if PCI_TRACE || COMPILER_TRACE
ushort vendorID = ReadRegister16(0x00);
VendorID = ReadRegister16(0x00);
BasicConsole.WriteLine(((FOS_System.String) "New PCI device. bus(arg)=") + bus + ", bus(fld)=" + this.bus);
BasicConsole.WriteLine(((FOS_System.String) " slot(arg)=") + slot + ", slot(fld)=" + this.slot);
BasicConsole.WriteLine(((FOS_System.String) " func(arg)=") + function + ", func(fld)=" + this.function);
BasicConsole.WriteLine(((FOS_System.String) " vendorID(loc)=") + vendorID + ", vendorID(fld)=" + this.VendorID);
BasicConsole.DelayOutput(4);
#else
VendorID = ReadRegister16(0x00);
#endif
DeviceID = ReadRegister16(0x02);
RevisionID = ReadRegister8(0x08);
ProgIF = ReadRegister8(0x09);
Subclass = ReadRegister8(0x0A);
ClassCode = ReadRegister8(0x0B);
CacheLineSize = ReadRegister8(0x0C);
LatencyTimer = ReadRegister8(0x0D);
HeaderType = (PCIHeaderType)ReadRegister8(0x0E);
BIST = (PCIBISTs)ReadRegister8(0x0F);
InterruptLine = ReadRegister8(0x3C);
InterruptPIN = (PCIInterruptPIN)ReadRegister8(0x3D);
DeviceExists = (uint)VendorID != 0xFFFF && (uint)DeviceID != 0xFFFF;
}
public static void HandlePageFault(uint eip, uint errorCode, uint address)
{
Hardware.VirtMem.MemoryLayout memLayout = ProcessManager.CurrentProcess.TheMemoryLayout;
BasicConsole.WriteLine("Code pages:");
string TempDisplayString = "0x ";
UInt32Dictionary.Iterator iterator = memLayout.CodePages.GetIterator();
while (iterator.HasNext())
{
UInt32Dictionary.KeyValuePair pair = iterator.Next();
uint vAddr = pair.Key;
WriteNumber(TempDisplayString, vAddr);
BasicConsole.WriteLine(TempDisplayString);
}
BasicConsole.WriteLine("Data pages:");
iterator = memLayout.DataPages.GetIterator();
while (iterator.HasNext())
{
UInt32Dictionary.KeyValuePair pair = iterator.Next();
uint vAddr = pair.Key;
WriteNumber(TempDisplayString, vAddr);
BasicConsole.WriteLine(TempDisplayString);
}
BasicConsole.DelayOutput(100);
}
public UHCI(PCI.PCIDeviceNormal aPCIDevice)
: base(aPCIDevice)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Constructor");
BasicConsole.DelayOutput(5);
#endif
usbBaseAddress = pciDevice.BaseAddresses[4].BaseAddress();
Processes.ProcessManager.CurrentProcess.TheMemoryLayout.AddDataPage(
(uint)usbBaseAddress & 0xFFFFF000,
(uint)usbBaseAddress & 0xFFFFF000);
VirtMemManager.Map((uint)usbBaseAddress & 0xFFFFF000, (uint)usbBaseAddress & 0xFFFFF000, 4096,
VirtMem.VirtMemImpl.PageFlags.KernelOnly);
RootPortCount = UHCI_Consts.PORTMAX;
EnabledPorts = false;
USBCMD = new IO.IOPort(MapPort(UHCI_Consts.USBCMD));
USBINTR = new IO.IOPort(MapPort(UHCI_Consts.USBINTR));
USBSTS = new IO.IOPort(MapPort(UHCI_Consts.USBSTS));
SOFMOD = new IO.IOPort(MapPort(UHCI_Consts.SOFMOD));
FRBASEADD = new IO.IOPort(MapPort(UHCI_Consts.FRBASEADD));
FRNUM = new IO.IOPort(MapPort(UHCI_Consts.FRNUM));
PORTSC1 = new IO.IOPort(MapPort(UHCI_Consts.PORTSC1));
PORTSC2 = new IO.IOPort(MapPort(UHCI_Consts.PORTSC2));
FrameList = (uint *)VirtMemManager.MapFreePage(VirtMem.VirtMemImpl.PageFlags.KernelOnly);
Processes.ProcessManager.CurrentProcess.TheMemoryLayout.AddDataPage(
(uint)FrameList & 0xFFFFF000,
(uint)FrameList & 0xFFFFF000);
Start();
}
protected override void _OUTTransaction(USBTransfer transfer, USBTransaction uTransaction, bool toggle, void *buffer, ushort length)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: OUT Transaction");
BasicConsole.DelayOutput(5);
#endif
UHCITransaction uT = new UHCITransaction();
uTransaction.underlyingTz = uT;
uT.inBuffer = null;
uT.inLength = 0;
uT.qTD = CreateQTD_IO((UHCI_QueueHead_Struct *)transfer.underlyingTransferData, (uint *)1, UHCI_Consts.TD_OUT, toggle, length, transfer.device.address, transfer.endpoint, transfer.packetSize);
uT.qTDBuffer = uT.qTD->virtBuffer;
if (buffer != null && length != 0)
{
MemoryUtils.MemCpy_32((byte *)uT.qTDBuffer, (byte *)buffer, length);
}
if (transfer.transactions.Count > 0)
{
UHCITransaction uLastTransaction = (UHCITransaction)((USBTransaction)(transfer.transactions[transfer.transactions.Count - 1])).underlyingTz;
uLastTransaction.qTD->next = (((uint)VirtMemManager.GetPhysicalAddress(uT.qTD) & 0xFFFFFFF0) | UHCI_Consts.BIT_Vf); // build TD queue
uLastTransaction.qTD->q_next = uT.qTD;
}
}
protected UHCI_qTD_Struct *CreateQTD_SETUP(UHCI_QueueHead_Struct *uQH, uint *next, bool toggle, ushort tokenBytes, byte type, byte req, byte hiVal, byte loVal, ushort i, ushort length, byte device, byte endpoint, uint packetSize)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Create qTD SETUP");
BasicConsole.DelayOutput(5);
#endif
UHCI_qTD_Struct *td = AllocQTD(next);
UHCI_qTD.SetPacketID(td, UHCI_Consts.TD_SETUP);
UHCI_qTD.SetDataToggle(td, toggle);
UHCI_qTD.SetDeviceAddress(td, device);
UHCI_qTD.SetEndpoint(td, endpoint);
UHCI_qTD.SetMaxLength(td, (ushort)(tokenBytes - 1));
UHCI_qTD.SetC_ERR(td, 0x3);
//TODO: *buffer =
USBRequest *request = (USBRequest *)(AllocQTDbuffer(td));
request->type = type;
request->request = req;
request->valueHi = hiVal;
request->valueLo = loVal;
request->index = i;
request->length = length;
uQH->q_last = td;
return(td);
}
/// <summary>
/// Parses partition information from the MBR data at the specified offset.
/// </summary>
/// <param name="aMBR">The MBR data.</param>
/// <param name="aLoc">The offset of the partition information in the MBR data.</param>
/// <returns>The partition information or null if the information is not a valid partition.</returns>
protected static PartitionInfo ParsePartition(byte[] aMBR, UInt32 aLoc)
{
#if MBR_TRACE
BasicConsole.WriteLine("MBR: 3");
#endif
//System ID gives you preliminary information
// about what type of data is in the partition and whether
// the partition is empty or not.
byte systemID = aMBR[aLoc + 4];
#if MBR_TRACE
BasicConsole.WriteLine("MBR: 4");
#endif
if (systemID == 0)
{
// If SystemID == 0 means, this partition entry is un-used
return(null);
}
#if MBR_TRACE
BasicConsole.WriteLine("MBR: 5");
#endif
//Various System IDs for EBR (Extended Boot Record)
// (I'd like to know why developers felt the need to each create their own
// ID for an EBR partition entry within MBR. Seems silly...)
if (systemID == 0x5 || systemID == 0xF || systemID == 0x85)
{
#if MBR_TRACE
BasicConsole.WriteLine("MBR: 6");
#endif
//Extended Boot Record formatted partition detected
//DOS only knows about 05, Windows 95 introduced 0F, Linux introduced 85
//Search for logical volumes
//http://thestarman.pcministry.com/asm/mbr/PartTables2.htm
return(new PartitionInfo(FOS_System.ByteConverter.ToUInt32(aMBR, aLoc + 8)));
}
else
{
#if MBR_TRACE
BasicConsole.WriteLine("MBR: 7");
#endif
UInt32 startSector = FOS_System.ByteConverter.ToUInt32(aMBR, aLoc + 8);
UInt32 sectorCount = FOS_System.ByteConverter.ToUInt32(aMBR, aLoc + 12);
#if MBR_TRACE
BasicConsole.WriteLine(((FOS_System.String) "startSector: ") + startSector);
BasicConsole.WriteLine(((FOS_System.String) "sectorCount: ") + sectorCount);
BasicConsole.DelayOutput(5);
#endif
#if MBR_TRACE
BasicConsole.WriteLine("MBR: 8");
#endif
bool bootable = aMBR[aLoc + 0] == 0x81;
return(new PartitionInfo(bootable, systemID, startSector, sectorCount));
}
}
protected static UHCI_qTD_Struct *AllocQTD(uint *next)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Alloc qTD");
BasicConsole.DelayOutput(5);
#endif
UHCI_qTD_Struct *td = (UHCI_qTD_Struct *)FOS_System.Heap.AllocZeroedAPB((uint)sizeof(UHCI_qTD_Struct), 32, "UHCI : AllocQTD");
if ((uint)next != Utils.BIT(0))
{
td->next = ((uint)VirtMemManager.GetPhysicalAddress(next) & 0xFFFFFFF0) | UHCI_Consts.BIT_Vf;
td->q_next = (UHCI_qTD_Struct *)next;
}
else
{
td->next = UHCI_Consts.BIT_T;
}
UHCI_qTD.SetActive(td, true); // to be executed
UHCI_qTD.SetPacketID(td, UHCI_Consts.TD_SETUP);
UHCI_qTD.SetMaxLength(td, 0x3F); // 64 byte // uhci, rev. 1.1, page 24
return(td);
}
private static void EnterCritical(FOS_System.String caller)
{
//BasicConsole.WriteLine("Entering critical section...");
if (AccessLockInitialised)
{
if (AccessLock == null)
{
BasicConsole.WriteLine("HeapAccessLock is initialised but null?!");
BasicConsole.DelayOutput(10);
}
else
{
if (AccessLock.Locked && OutputTrace)
{
BasicConsole.SetTextColour(BasicConsole.warning_colour);
BasicConsole.WriteLine("Warning: Heap about to try to re-enter spin lock...");
BasicConsole.Write("Enter lock caller: ");
BasicConsole.WriteLine(caller);
BasicConsole.SetTextColour(BasicConsole.default_colour);
}
AccessLock.Enter();
}
}
//else
//{
// BasicConsole.WriteLine("HeapAccessLock not initialised - ignoring lock conditions.");
// BasicConsole.DelayOutput(5);
//}
}
/// <summary>
/// Tests the virtual memory system.
/// </summary>
public static void Test()
{
BasicConsole.WriteLine("Starting virt mem test...");
try
{
impl.Test();
byte *ptr = (byte *)MapFreePage(VirtMemImpl.PageFlags.KernelOnly);
for (int i = 0; i < 4096; i++, ptr++)
{
*ptr = 5;
if (*ptr != 5)
{
BasicConsole.WriteLine("Failed to set mem!");
}
}
}
catch
{
BasicConsole.WriteLine("Exception. Failed test.");
BasicConsole.WriteLine(ExceptionMethods.CurrentException._Type.Signature);
BasicConsole.WriteLine(ExceptionMethods.CurrentException.Message);
}
BasicConsole.DelayOutput(5);
}
/// <summary>
/// Initializes the specified disk device.
/// </summary>
/// <param name="aDiskDevice">The disk device to initialize.</param>
public static void InitDisk(DiskDevice aDiskDevice)
{
//TODO - Add more partitioning schemes.
if (InitAsISO9660(aDiskDevice))
{
#if FSM_TRACE
BasicConsole.WriteLine("ISO9660 CD/DVD disc detected!");
BasicConsole.DelayOutput(3);
#endif
}
//Must check for GPT before MBR because GPT uses a protective
// MBR entry so will be seen as valid MBR.
else if (InitAsGPT(aDiskDevice))
{
#if FSM_TRACE
BasicConsole.WriteLine("GPT formatted disk detected!");
BasicConsole.DelayOutput(3);
#endif
}
else if (!InitAsMBR(aDiskDevice))
{
ExceptionMethods.Throw(new FOS_System.Exceptions.NotSupportedException("Non MBR/EBR/GPT/ISO9660 formatted disks not supported."));
}
}
private void IRQHandler()
{
#if PATAPI_TRACE
BasicConsole.WriteLine("PATAPI IRQ occurred!");
BasicConsole.DelayOutput(10);
#endif
IRQInvoked = true;
}
protected void Start()
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Start");
BasicConsole.DelayOutput(5);
#endif
InitHC();
}
public static bool Sleep_Indefinitely()
{
if (ProcessManager.CurrentThread == null)
{
BasicConsole.WriteLine("Massive problem! The current thread is null! Can't sleep null thread.");
BasicConsole.DelayOutput(5);
}
return(ProcessManager.CurrentThread._Sleep_Indefinitely());
}
public static void Wake()
{
if (ProcessManager.CurrentThread == null)
{
BasicConsole.WriteLine("Massive problem! The current thread is null! Can't wake null thread.");
BasicConsole.DelayOutput(5);
}
ProcessManager.CurrentThread._Wake();
}
protected override void _SetupTransfer(USBTransfer transfer)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Setup Transfer");
BasicConsole.DelayOutput(5);
#endif
transfer.underlyingTransferData = qhPointer; // QH
}
public static void EnterSleep(int ms)
{
if (ProcessManager.CurrentThread == null)
{
BasicConsole.WriteLine("Massive problem! The current thread is null! Can't sleep null thread.");
BasicConsole.DelayOutput(5);
}
ProcessManager.CurrentThread._EnterSleep(ms);
}
/// <summary>
/// Outputs, via the basic console, how much memory was cleaned up.
/// </summary>
/// <param name="startNumObjs">The number of objects before the cleanup.</param>
/// <param name="startNumStrings">The number of strings before the cleanup.</param>
private static void PrintCleanupData(int startNumObjs, int startNumStrings)
{
int numObjsFreed = startNumObjs - NumObjs;
int numStringsFreed = startNumStrings - NumStrings;
BasicConsole.SetTextColour(BasicConsole.warning_colour);
BasicConsole.WriteLine(((FOS_System.String)"Freed objects: ") + numObjsFreed);
BasicConsole.WriteLine(((FOS_System.String)"Freed strings: ") + numStringsFreed);
BasicConsole.WriteLine(((FOS_System.String)"Used memory : ") + (Heap.FBlock->used * Heap.FBlock->bsize) + " / " + Heap.FBlock->size);
BasicConsole.DelayOutput(2);
BasicConsole.SetTextColour(BasicConsole.default_colour);
}
protected bool isTransactionSuccessful(UHCITransaction uT)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Is Transaction Successful");
BasicConsole.DelayOutput(5);
#endif
//TODO: Check actual length field
//Zero bits:
// 17, 18, 19, 20, 21, 22, 23
return((uT.qTD->u1 & 0x00FE0000) == 0);
}
protected static void *AllocQTDbuffer(UHCI_qTD_Struct *td)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Alloc qTD Buffer");
BasicConsole.DelayOutput(5);
#endif
td->virtBuffer = FOS_System.Heap.AllocZeroedAPB(0x1000, 0x1000, "UHCI : AllocQTDBuffer");
td->buffer = (uint *)VirtMemManager.GetPhysicalAddress(td->virtBuffer);
return(td->virtBuffer);
}
protected void AnalysePortStatus(byte j, ushort val)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Anaylse port status");
BasicConsole.DelayOutput(5);
#endif
HCPort port = GetPort(j);
if ((val & UHCI_Consts.PORT_LOWSPEED_DEVICE) != 0)
{
#if UHCI_TRACE
BasicConsole.Write("UHCI: Lowspeed device");
#endif
port.speed = USBPortSpeed.Low; // Save lowspeed/fullspeed information in data
}
else
{
#if UHCI_TRACE
BasicConsole.Write("UHCI: Fullspeed device");
#endif
port.speed = USBPortSpeed.Full; // Save lowspeed/fullspeed information in data
}
if (((val & UHCI_Consts.PORT_CS) != 0) && !port.connected)
{
#if UHCI_TRACE
BasicConsole.WriteLine(" attached.");
#endif
port.connected = true;
ResetPort(j); // reset on attached
SetupUSBDevice(j);
}
else if (port.connected)
{
#if UHCI_TRACE
BasicConsole.WriteLine(" removed.");
#endif
port.connected = false;
if (port.deviceInfo != null)
{
port.deviceInfo.FreePort();
}
}
#if UHCI_TRACE
else
{
BasicConsole.WriteLine(" not attached.");
}
#endif
}
/// <summary>
/// Sets up an IN transaction and adds it to the specified transfer.
/// </summary>
/// <param name="transfer">The transfer to which the transaction should be added.</param>
/// <param name="controlHandshake">Whether the transaction is part of a control handshake or not.</param>
/// <param name="buffer">The buffer to store the incoming data in.</param>
/// <param name="length">The length of the buffer.</param>
public void INTransaction(USBTransfer transfer, bool controlHandshake, void *buffer, ushort length)
{
#if HCI_TRACE || USB_TRACE
BasicConsole.WriteLine(((FOS_System.String) "transfer.packetSize=") + transfer.packetSize +
", length=" + length);
#endif
ushort clampedLength = FOS_System.Math.Min(transfer.packetSize, length);
length -= clampedLength;
#if HCI_TRACE || USB_TRACE
BasicConsole.WriteLine(((FOS_System.String) "clampedLength=") + clampedLength);
BasicConsole.DelayOutput(1);
#endif
ushort remainingTransactions = (ushort)(length / transfer.packetSize);
#if HCI_TRACE || USB_TRACE
BasicConsole.WriteLine("Division passed.");
BasicConsole.DelayOutput(1);
#endif
if (length % transfer.packetSize != 0)
{
remainingTransactions++;
}
USBTransaction transaction = new USBTransaction();
transaction.type = USBTransactionType.IN;
if (controlHandshake) // Handshake transaction of control transfers always have toggle set to 1
{
((Endpoint)transfer.device.Endpoints[transfer.endpoint]).Toggle = true;
}
#if HCI_TRACE
BasicConsole.WriteLine("Call _INTransaction...");
BasicConsole.DelayOutput(1);
#endif
_INTransaction(transfer, transaction, ((Endpoint)transfer.device.Endpoints[transfer.endpoint]).Toggle, buffer, clampedLength);
#if HCI_TRACE
BasicConsole.WriteLine("Done.");
BasicConsole.DelayOutput(1);
#endif
transfer.transactions.Add(transaction);
((Endpoint)transfer.device.Endpoints[transfer.endpoint]).Toggle = !((Endpoint)transfer.device.Endpoints[transfer.endpoint]).Toggle; // Switch toggle
if (remainingTransactions > 0)
{
INTransaction(transfer, controlHandshake, ((byte *)buffer + clampedLength), length);
}
}
public override uint FindFreeVirtPageAddrs(int num)
{
int result = UsedVirtPages.FindContiguousClearEntries(num);
if (result == -1)
{
BasicConsole.WriteLine("Error finding free virtual pages!");
BasicConsole.DelayOutput(10);
ExceptionMethods.Throw(new FOS_System.Exceptions.OutOfMemoryException("Could not find any more free virtual pages."));
}
return((uint)(result * 4096));
}
private static void AddDevice(PCIDevice device, uint step)
{
Devices.Add(device);
DeviceManager.AddDevice(device);
if (device is PCIDeviceBridge)
{
#if PCI_TRACE
BasicConsole.WriteLine("Enumerating PCI Bridge Device...");
BasicConsole.DelayOutput(5);
#endif
EnumerateBus(((PCIDeviceBridge)device).SecondaryBusNumber, step + 1);
}
}
protected void CreateQH(UHCI_QueueHead_Struct *head, uint horizPtr, UHCI_qTD_Struct *firstTD)
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Create QH");
BasicConsole.DelayOutput(5);
#endif
head->next = (UHCI_QueueHead_Struct *)UHCI_Consts.BIT_T; // (paging_getPhysAddr((void*)horizPtr) & 0xFFFFFFF0) | BIT_QH;
if (firstTD == null)
{
head->transfer = (UHCI_qTD_Struct *)UHCI_Consts.BIT_T;
}
else
{
head->transfer = (UHCI_qTD_Struct *)((uint)VirtMemManager.GetPhysicalAddress(firstTD) & 0xFFFFFFF0);
head->q_first = firstTD;
}
}
protected void EnablePorts()
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Enable ports");
BasicConsole.DelayOutput(5);
#endif
EnabledPorts = true;
for (byte j = 0; j < RootPortCount; j++)
{
ResetPort(j);
ushort val = PORTSC1.Read_UInt16((ushort)(2 * j));
#if UHCI_TRACE
BasicConsole.WriteLine(((FOS_System.String) "UHCI: Port ") + j + " : " + val);
#endif
AnalysePortStatus(j, val);
}
}
/// <summary>
/// Dequeues the oldest scancode from the scancode buffer.
/// </summary>
/// <returns>The dequeued scancode.</returns>
public uint Dequeue()
{
//Pops the first item off the top of the queue
try
{
uint result = scancodeBuffer[0];
scancodeBuffer.RemoveAt(0);
return(result);
}
catch
{
for (int i = 0; i < 20; i++)
{
BasicConsole.WriteLine(ExceptionMethods.CurrentException.Message);
BasicConsole.DelayOutput(1);
}
ExceptionMethods.Rethrow();
}
return(0xFFFFFFFF);
}
public static void HandlePageFault(uint eip, uint errorCode, uint address)
{
Hardware.VirtMem.MemoryLayout memLayout = ProcessManager.CurrentProcess.TheMemoryLayout;
BasicConsole.WriteLine("Code pages:");
string TempDisplayString = "0x ";
for (int i = 0; i < memLayout.CodePages.Keys.Count; i++)
{
uint vAddr = memLayout.CodePages.Keys[i];
WriteNumber(TempDisplayString, vAddr);
BasicConsole.WriteLine(TempDisplayString);
}
BasicConsole.WriteLine("Data pages:");
for (int i = 0; i < memLayout.DataPages.Keys.Count; i++)
{
uint vAddr = memLayout.DataPages.Keys[i];
WriteNumber(TempDisplayString, vAddr);
BasicConsole.WriteLine(TempDisplayString);
}
BasicConsole.DelayOutput(100);
}
public override void Update()
{
#if UHCI_TRACE
BasicConsole.WriteLine("UHCI: Update");
BasicConsole.DelayOutput(5);
#endif
for (byte j = 0; j < RootPortCount; j++)
{
ushort val = PORTSC1.Read_UInt16((ushort)(2 * j));
if ((val & UHCI_Consts.PORT_CS_CHANGE) != 0)
{
#if UHCI_TRACE
BasicConsole.WriteLine(((FOS_System.String) "UHCI: Port ") + j + " changed.");
#endif
PORTSC1.Write_UInt16(UHCI_Consts.PORT_CS_CHANGE, (ushort)(2 * j));
AnalysePortStatus(j, val);
}
}
}
private static void ExitCritical()
{
//BasicConsole.WriteLine("Exiting critical section...");
if (AccessLockInitialised)
{
if (AccessLock == null)
{
BasicConsole.WriteLine("GCAccessLock is initialised but null?!");
BasicConsole.DelayOutput(10);
}
else
{
AccessLock.Exit();
}
}
//else
//{
// BasicConsole.WriteLine("GCAccessLock not initialised - ignoring lock conditions.");
// BasicConsole.DelayOutput(5);
//}
}