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[VIDEOPRT] Implement IOCTL_VIDEO_ENUM_MONITOR_PDO

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This commit is contained in:
Hervé Poussineau 2025-05-01 13:44:21 +02:00
parent 2f00ca4663
commit 29b5003455
1 changed files with 49 additions and 2 deletions
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51
win32ss/drivers/videoprt/dispatch.c
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@ -622,6 +622,51 @@ VideoPortUseDeviceInSession(
return STATUS_SUCCESS; return STATUS_SUCCESS;
} }
static
NTSTATUS
VideoPortEnumMonitorPdo(
_In_ PDEVICE_OBJECT DeviceObject,
_Inout_ PVIDEO_MONITOR_DEVICE *ppMonitorDevices,
_Out_ PULONG_PTR Information)
{
PVIDEO_MONITOR_DEVICE pMonitorDevices;
PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension = DeviceObject->DeviceExtension;
PVIDEO_PORT_CHILD_EXTENSION ChildExtension;
ULONG i;
PLIST_ENTRY CurrentEntry;
/* Count the children */
i = 0;
CurrentEntry = DeviceExtension->ChildDeviceList.Flink;
while (CurrentEntry != &DeviceExtension->ChildDeviceList)
{
i++;
CurrentEntry = CurrentEntry->Flink;
}
pMonitorDevices = ExAllocatePoolZero(PagedPool,
sizeof(VIDEO_MONITOR_DEVICE) * (i + 1),
TAG_VIDEO_PORT);
if (!pMonitorDevices)
return STATUS_INSUFFICIENT_RESOURCES;
/* Add the children */
i = 0;
CurrentEntry = DeviceExtension->ChildDeviceList.Flink;
while (CurrentEntry != &DeviceExtension->ChildDeviceList)
{
ChildExtension = CONTAINING_RECORD(CurrentEntry, VIDEO_PORT_CHILD_EXTENSION, ListEntry);
ObReferenceObject(ChildExtension->PhysicalDeviceObject);
pMonitorDevices[i++].pdo = ChildExtension->PhysicalDeviceObject;
CurrentEntry = CurrentEntry->Flink;
}
*ppMonitorDevices = pMonitorDevices;
*Information = sizeof(pMonitorDevices);
return STATUS_SUCCESS;
}
static static
NTSTATUS NTSTATUS
VideoPortInitWin32kCallbacks( VideoPortInitWin32kCallbacks(
@ -791,8 +836,10 @@ IntVideoPortDispatchDeviceControl(
break; break;
case IOCTL_VIDEO_ENUM_MONITOR_PDO: case IOCTL_VIDEO_ENUM_MONITOR_PDO:
WARN_(VIDEOPRT, "- IOCTL_VIDEO_ENUM_MONITOR_PDO is UNIMPLEMENTED!\n"); INFO_(VIDEOPRT, "- IOCTL_VIDEO_ENUM_MONITOR_PDO\n");
Status = STATUS_NOT_IMPLEMENTED; Status = VideoPortEnumMonitorPdo(DeviceObject,
Irp->AssociatedIrp.SystemBuffer,
&Irp->IoStatus.Information);
break; break;
case IOCTL_VIDEO_INIT_WIN32K_CALLBACKS: case IOCTL_VIDEO_INIT_WIN32K_CALLBACKS: