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Fail start of the serial port currently used for debugging, according to http://blogs.msdn.com/doronh/archive/2006/06/07/621604.aspx

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svn path=/trunk/; revision=22516
This commit is contained in:
Hervé Poussineau 2006-06-22 22:14:51 +00:00
parent 6c6b0189cf
commit e57648e8e2
3 changed files with 9 additions and 16 deletions
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22
reactos/drivers/base/serial/pnp.c
View file

@ -193,6 +193,13 @@ SerialPnpStartDevice(
return STATUS_INSUFFICIENT_RESOURCES;
ComPortBase = (PUCHAR)DeviceExtension->BaseAddress;
/* Test if we are trying to start the serial port used for debugging */
if (KdComPortInUse && *KdComPortInUse == ULongToPtr(DeviceExtension->BaseAddress))
{
DPRINT("Failing IRP_MN_START_DEVICE as this serial port is used for debugging\n");
return STATUS_INSUFFICIENT_RESOURCES;
}
if (DeviceExtension->UartType == UartUnknown)
DeviceExtension->UartType = SerialDetectUartType(ComPortBase);
@ -329,7 +336,6 @@ SerialPnp(
*/
case IRP_MN_START_DEVICE: /* 0x0 */
{
BOOLEAN ConflictDetected;
DPRINT("Serial: IRP_MJ_PNP / IRP_MN_START_DEVICE\n");
ASSERT(((PSERIAL_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->PnpState == dsStopped);
@ -344,20 +350,6 @@ SerialPnp(
Status = STATUS_INSUFFICIENT_RESOURCES;
break;
}
/* FIXME: HACK: verify that we don't have resource conflict,
* because PnP manager doesn't do it automatically
*/
Status = IoReportResourceForDetection(
DeviceObject->DriverObject, Stack->Parameters.StartDevice.AllocatedResources, 0,
NULL, NULL, 0,
&ConflictDetected);
if (!NT_SUCCESS(Status))
{
Irp->IoStatus.Information = 0;
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
/* Call lower driver */
Status = ForwardIrpAndWait(DeviceObject, Irp);

1
reactos/drivers/base/serial/serial.h
View file

@ -8,6 +8,7 @@
*/
#include <ntddk.h>
#include <ndk/haltypes.h>
#include <ntddser.h>
#include <stdio.h>

2
reactos/include/ndk/haltypes.h
View file

@ -144,7 +144,7 @@ extern HAL_PRIVATE_DISPATCH HalPrivateDispatchTable;
// HAL Exports
//
#ifndef _NTHAL_
extern PUCHAR *KdComPortInUse;
extern PUCHAR NTSYSAPI *KdComPortInUse;
#endif
#endif