public static bool GetFixedIoIrqRange(uint range,
out byte line,
out byte size)
{
bool ret = false;
line = 0;
size = 0;
IoConfig config = Thread.CurrentProcess.IoConfig;
if (config != null && config.FixedRanges.Length > range)
{
IoIrqRange iir = config.FixedRanges[range] as IoIrqRange;
if (iir != null)
{
line = iir.Line;
size = iir.Size;
ret = true;
}
}
Tracing.Log(Tracing.Debug,
"DeviceService.GetFixedIoIrqRange(range={0}, out line={1:x2}, out size={2:x2})",
range, line, size);
return(ret);
}
public static bool Create(byte irqNum,
out InterruptHandle handle)
{
bool ret = false;
handle = new InterruptHandle();
//
// Create an IoIrq, and a handle in the current process to hold it.
//
IoConfig config = Thread.CurrentProcess.IoConfig;
for (int i = 0; i < config.DynamicRanges.Length; i++)
{
IoIrqRange iir = config.DynamicRanges[i] as IoIrqRange;
if (iir != null && iir.Irq <= irqNum && irqNum < iir.Irq + iir.Size)
{
IoIrq irq = iir.IrqAtOffset((byte)(irqNum - iir.Irq));
handle = new InterruptHandle(
Thread.CurrentProcess.AllocateHandle(irq));
irq.RegisterInterrupt();
ret = true;
break;
}
}
Tracing.Log(Tracing.Debug,
"InterruptHandle.Create(irq={0:x2}, out id={0:x8})",
irqNum, handle.id);
return(ret);
}
// CTR will create the rest of this class:
public TimerResources(IoConfig config)
{
// dynamic resources
registers = (IoMemoryRange)config.DynamicRanges[0];
irq = (IoIrqRange)config.DynamicRanges[1];
}
