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[USB-BRINGUP]

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- Partly implement mouse read completion
- Implement read initiation
- Implement MouHid_Create, MouHid_Close

svn path=/branches/usb-bringup/; revision=54768
This commit is contained in:
Johannes Anderwald 2011-12-27 02:35:03 +00:00
parent 05c20641db
commit d4bb27774a
2 changed files with 168 additions and 7 deletions
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166
drivers/hid/mouhid/mouhid.c
View file

@ -137,6 +137,89 @@ MouHid_DispatchInputData(
KeLowerIrql(OldIrql);
}
NTSTATUS
NTAPI
MouHid_ReadCompletion(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp,
IN PVOID Context)
{
PMOUHID_DEVICE_EXTENSION DeviceExtension;
USHORT ButtonFlags;
MOUSE_INPUT_DATA MouseInputData;
/* get device extension */
DeviceExtension = (PMOUHID_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* get mouse change flags */
MouHid_GetButtonFlags(DeviceObject, &ButtonFlags);
/* FIXME detect mouse move change */
/* FIXME detect mouse wheel change */
/* init input data */
RtlZeroMemory(&MouseInputData, sizeof(MOUSE_INPUT_DATA));
/* init input data */
MouseInputData.ButtonFlags = ButtonFlags;
/* dispatch mouse action */
MouHid_DispatchInputData(DeviceObject, &MouseInputData);
/* re-init read */
MouHid_InitiateRead(DeviceObject);
/* stop completion */
return STATUS_MORE_PROCESSING_REQUIRED;
}
NTSTATUS
MouHid_InitiateRead(
IN PDEVICE_OBJECT DeviceObject)
{
PMOUHID_DEVICE_EXTENSION DeviceExtension;
PIO_STACK_LOCATION IoStack;
NTSTATUS Status;
/* get device extension */
DeviceExtension = (PMOUHID_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* re-use irp */
IoReuseIrp(DeviceExtension->Irp, STATUS_SUCCESS);
/* init irp */
DeviceExtension->Irp->MdlAddress = DeviceExtension->ReportMDL;
/* get next stack location */
IoStack = IoGetNextIrpStackLocation(DeviceExtension->Irp);
/* init stack location */
IoStack->Parameters.Read.Length = DeviceExtension->ReportLength;
IoStack->Parameters.Read.Key = 0;
IoStack->Parameters.Read.ByteOffset.QuadPart = 0LL;
IoStack->MajorFunction = IRP_MJ_READ;
IoStack->FileObject = DeviceExtension->FileObject;
/* set completion routine */
IoSetCompletionRoutine(DeviceExtension->Irp, MouHid_ReadCompletion, DeviceExtension, TRUE, TRUE, TRUE);
/* start the read */
Status = IoCallDriver(DeviceExtension->NextDeviceObject, DeviceExtension->Irp);
/* done */
return Status;
}
NTSTATUS
NTAPI
MouHid_CreateCompletion(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp,
IN PVOID Context)
{
KeSetEvent((PKEVENT)Context, 0, FALSE);
return STATUS_MORE_PROCESSING_REQUIRED;
}
NTSTATUS
@ -145,9 +228,68 @@ MouHid_Create(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
UNIMPLEMENTED
ASSERT(FALSE);
return STATUS_NOT_IMPLEMENTED;
PIO_STACK_LOCATION IoStack;
NTSTATUS Status;
KEVENT Event;
PMOUHID_DEVICE_EXTENSION DeviceExtension;
DPRINT1("MOUHID: IRP_MJ_CREATE\n");
/* get device extension */
DeviceExtension = (PMOUHID_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* get stack location */
IoStack = IoGetCurrentIrpStackLocation(Irp);
/* copy stack location to next */
IoCopyCurrentIrpStackLocationToNext(Irp);
/* init event */
KeInitializeEvent(&Event, NotificationEvent, FALSE);
/* prepare irp */
IoSetCompletionRoutine(Irp, MouHid_CreateCompletion, &Event, TRUE, TRUE, TRUE);
/* call lower driver */
Status = IoCallDriver(DeviceExtension->NextDeviceObject, Irp);
if (Status == STATUS_PENDING)
{
/* request pending */
KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
}
/* check for success */
if (!NT_SUCCESS(Status))
{
/* failed */
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
/* is the driver already in use */
if (DeviceExtension->FileObject == NULL)
{
/* did the caller specify correct attributes */
if (IoStack->Parameters.Create.FileAttributes & FILE_ATTRIBUTE_READONLY)
{
/* store file object */
DeviceExtension->FileObject = IoStack->FileObject;
/* initiating read */
Status = MouHid_InitiateRead(DeviceObject);
}
else
{
/* wrong mode */
DPRINT1("MOUHID: wrong attributes: %x\n", IoStack->Parameters.Create.FileAttributes);
}
}
/* complete request */
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return Status;
}
@ -157,9 +299,21 @@ MouHid_Close(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp)
{
UNIMPLEMENTED
ASSERT(FALSE);
return STATUS_NOT_IMPLEMENTED;
PMOUHID_DEVICE_EXTENSION DeviceExtension;
/* get device extension */
DeviceExtension = (PMOUHID_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
/* FIXME: cancel irp */
/* remove file object */
DeviceExtension->FileObject = NULL;
/* skip location */
IoSkipCurrentIrpStackLocation(Irp);
/* pass irp to down the stack */
return IoCallDriver(DeviceExtension->NextDeviceObject, Irp);
}
NTSTATUS

9
drivers/hid/mouhid/mouhid.h
View file

@ -32,4 +32,11 @@ typedef struct
ULONG ReportLength;
}MOUHID_DEVICE_EXTENSION, *PMOUHID_DEVICE_EXTENSION;
PFILE_OBJECT FileObject;
}MOUHID_DEVICE_EXTENSION, *PMOUHID_DEVICE_EXTENSION;
NTSTATUS
MouHid_InitiateRead(
IN PDEVICE_OBJECT DeviceObject);