public static void testFn()
{
uint hEvent;
uint dwEdge = 0, dwGpio = 0;
uint dwIrq = 0, dwSysIntr = 0;
uint dwOutBuf = 0;
uint dwBytesReturned = 0;
int err;
bool ret;
String retText;
// Get the IRQ # for this GPIO
dwGpio = 36;
ret = CoreDll.KernelIoControl(CoreDll.IOCTL_HAL_GPIO2IRQ, ref dwGpio, sizeof(uint), ref dwIrq, sizeof(uint), ref dwBytesReturned);
// Configure for an interrupt on the rising edge
dwEdge = CoreDll.GPIO_EDGE_RISING;
if (!CoreDll.KernelIoControl(CoreDll.IOCTL_HAL_IRQEDGE, ref dwIrq, 1, ref dwEdge, 1, ref dwBytesReturned))
{
throw new Win32Exception(err = Marshal.GetLastWin32Error());
}
// Create an event associated with this interrupt
hEvent = CoreDll.CreateEvent(0, false, false, null);
retText = hEvent.ToString();
// Register the event
ret = CoreDll.KernelIoControl(CoreDll.IOCTL_HAL_REQUEST_SYSINTR, ref dwIrq, sizeof(uint), ref dwSysIntr, sizeof(uint), ref dwBytesReturned);
// Initialize the interrupt
ret = CoreDll.InterruptInitialize(dwSysIntr, hEvent, 0, 0);
// Clear the interrupt if there was one pending
CoreDll.InterruptDone(dwSysIntr);
// Wait for something to happen!
bool Exit = false;
while (!Exit)
{
if (CoreDll.WaitForSingleObject(hEvent, CoreDll.INFINITE) == CoreDll.WAIT_OBJECT_0)
{
CoreDll.InterruptDone(dwSysIntr);
if (MessageBox.Show("Interrupt!", "Wait again", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1) == DialogResult.No)
//If( DialogResult.No == MessageBox.Show("Interrupt!","Wait again",MessageBoxButtons.YesNo,MessageBoxIcon.Question,MessageBoxDefaultButton.Button1))
{
Exit = true;
}
}
}
// Disable any previously registered event
CoreDll.InterruptDisable(dwSysIntr);
CoreDll.KernelIoControl(CoreDll.IOCTL_HAL_RELEASE_SYSINTR, ref dwSysIntr, sizeof(uint), System.IntPtr.Zero, 0, ref dwBytesReturned);
//if (!CoreDllWrapper.KernelIoControl(CoreDllWrapper.IOCTL_HAL_RELEASE_SYSINTR, ref dwSysIntr, sizeof(uint), System.IntPtr.Zero, 0, ref dwBytesReturned)) throw new Win32Exception(err = Marshal.GetLastWin32Error());
}
/// <summary>
/// Releases power requirement.
/// </summary>
/// <exception cref="System.InvalidOperationException">Cannot close device.</exception>
public void Release()
{
if (mHandle != IntPtr.Zero)
{
if (CoreDll.ReleasePowerRequirement(mHandle) != CoreDll.SUCCESS)
{
throw new InvalidOperationException("Cannot close device.");
}
mHandle = IntPtr.Zero;
}
}
/// <summary>
/// Sets power requirement.
/// </summary>
/// <exception cref="System.InvalidOperationException">Device already open. -or- Cannot open device.</exception>
public void Set(PowerRequirementState powerState)
{
if (mHandle != IntPtr.Zero)
{
throw new System.InvalidOperationException("Device already open.");
}
mHandle = CoreDll.SetPowerRequirement(mDeviceName, powerState, CoreDll.POWER_NAME, IntPtr.Zero, 0);
if (mHandle == IntPtr.Zero)
{
throw new System.InvalidOperationException("Cannot open device.");
}
}
