VOID GFilterIOCallback( IN WDFDEVICE Device,
IN WDFREQUEST Request)
{
NTSTATUS status;
WDF_REQUEST_PARAMETERS params;
char *buf;
size_t bufLength;
// Filter the desired information
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(Request,
¶ms);
switch (params.Type)
{
//!todo - Record the IRP contents
case WdfRequestTypeRead:
DEBUG("Intercepted Read IRP");
// We must register a callback for when the read completes (in case it is asynchronous) so the buffers will contain something from
// the device (or what ever driver is below us).
WdfRequestSetCompletionRoutine( Request,
GFilterReadCompleteionRoutine,
WDF_NO_CONTEXT); // This should be the filter|device context so we can pass the results to the PDO
break;
case WdfRequestTypeWrite:
DEBUG("Intercepted Write IRP");
status = WdfRequestRetrieveInputBuffer( Request, //!todo This should work for BUFFERED and DIRECT, but I think it will break for Neither !!
1,
(PVOID)&buf,
&bufLength);
CHECKSTATUS(status, ERROR("Failed to retrieve intercepted write buffer. 0x%0.4", status); break;);
DEBUG("Intercepted Write of %d bytes: %#0.2x ...", bufLength, (unsigned char)buf[0]);
//!todo place the buf into the RAW PDO context
break;
// All else can just be passed on...
}
//读操作
VOID RamDiskEvtIoRead(IN WDFQUEUE Queue,IN WDFREQUEST Request,IN size_t Length)
{
PDEVICE_EXTENSION devExt = QueueGetExtension(Queue)->DeviceExtension;
//从队列对象获得设备扩展
NTSTATUS Status = STATUS_INVALID_PARAMETER;
WDF_REQUEST_PARAMETERS Parameters;
LARGE_INTEGER ByteOffset;
WDFMEMORY hMemory;
//__analysis_assume(Length > 0);
//参数清0
WDF_REQUEST_PARAMETERS_INIT(&Parameters);
//从请求中获取信息
WdfRequestGetParameters(Request, &Parameters);
//读取偏移
ByteOffset.QuadPart = Parameters.Parameters.Read.DeviceOffset;
//检测读取是否合法
if (RamDiskCheckParameters(devExt, ByteOffset, Length))
{
//获得内存状态
Status = WdfRequestRetrieveOutputMemory(Request, &hMemory);
if(NT_SUCCESS(Status))
{
// Destination # Offset into the destination ＃ source
Status = WdfMemoryCopyFromBuffer(hMemory,0, devExt->DiskImage + ByteOffset.LowPart, Length);
}
}
WdfRequestCompleteWithInformation(Request, Status, (ULONG_PTR)Length);
}
// 写操作
VOID RamDiskEvtIoWrite(IN WDFQUEUE Queue,IN WDFREQUEST Request,IN size_t Length)
{
PDEVICE_EXTENSION devExt = QueueGetExtension(Queue)->DeviceExtension;
//从队列对象获得设备扩展
NTSTATUS Status = STATUS_INVALID_PARAMETER;
WDF_REQUEST_PARAMETERS Parameters;
LARGE_INTEGER ByteOffset;
WDFMEMORY hMemory;
//__analysis_assume(Length > 0);
//参数清0
WDF_REQUEST_PARAMETERS_INIT(&Parameters);
//从请求中获取信息
WdfRequestGetParameters(Request, &Parameters);
//写入偏移
ByteOffset.QuadPart = Parameters.Parameters.Write.DeviceOffset;
//检测写入是否合法
if (RamDiskCheckParameters(devExt, ByteOffset, Length))
{
// from output to input
Status = WdfRequestRetrieveInputMemory(Request, &hMemory);
//获得内存状态
if(NT_SUCCESS(Status))
{
// Source # offset in Source memory where the copy has to start # destination
Status = WdfMemoryCopyToBuffer(hMemory, 0,devExt->DiskImage + ByteOffset.LowPart, Length);
// from "from" to "to"
}
}
WdfRequestCompleteWithInformation(Request, Status, (ULONG_PTR)Length);
}
VOID
RamDiskEvtIoWrite(
IN WDFQUEUE Queue,
IN WDFREQUEST Request,
IN size_t Length
)
/*++
Routine Description:
This event is invoked when the framework receives IRP_MJ_WRITE request.
Arguments:
Queue - Handle to the framework queue object that is associated with the
I/O request.
Request - Handle to a framework request object.
Length - Length of the data buffer associated with the request.
The default property of the queue is to not dispatch
zero length read & write requests to the driver and
complete is with status success. So we will never get
a zero length request.
Return Value:
VOID
--*/
{
PDEVICE_EXTENSION devExt = QueueGetExtension(Queue)->DeviceExtension;
NTSTATUS Status = STATUS_INVALID_PARAMETER;
WDF_REQUEST_PARAMETERS Parameters;
LARGE_INTEGER ByteOffset;
WDFMEMORY hMemory;
_Analysis_assume_(Length > 0);
WDF_REQUEST_PARAMETERS_INIT(&Parameters);
WdfRequestGetParameters(Request, &Parameters);
ByteOffset.QuadPart = Parameters.Parameters.Write.DeviceOffset;
if (RamDiskCheckParameters(devExt, ByteOffset, Length)) {
Status = WdfRequestRetrieveInputMemory(Request, &hMemory);
if(NT_SUCCESS(Status)){
Status = WdfMemoryCopyToBuffer(hMemory, // Source
0, // offset in Source memory where the copy has to start
devExt->DiskImage + ByteOffset.LowPart, // destination
Length);
}
}
WdfRequestCompleteWithInformation(Request, Status, (ULONG_PTR)Length);
}
VOID
XenUsb_EvtRequestCancelPvUrb(WDFREQUEST request) {
WDFDEVICE device = WdfIoQueueGetDevice(WdfRequestGetIoQueue(request));
PXENUSB_DEVICE_DATA xudd = GetXudd(device);
WDF_REQUEST_PARAMETERS wrp;
partial_pvurb_t *partial_pvurb;
pvurb_t *pvurb;
KIRQL old_irql;
FUNCTION_ENTER();
FUNCTION_MSG("cancelling request %p\n", request);
WDF_REQUEST_PARAMETERS_INIT(&wrp);
KeAcquireSpinLock(&xudd->urb_ring_lock, &old_irql);
WdfRequestGetParameters(request, &wrp);
pvurb = (pvurb_t *)wrp.Parameters.Others.Arg1;
FUNCTION_MSG("pvurb = %p\n", pvurb);
ASSERT(pvurb);
partial_pvurb = (partial_pvurb_t *)xudd->partial_pvurb_queue.Flink;
while (partial_pvurb != (partial_pvurb_t *)&xudd->partial_pvurb_queue) {
partial_pvurb_t *next_partial_pvurb = (partial_pvurb_t *)partial_pvurb->entry.Flink;
ASSERT(!partial_pvurb->on_ring);
FUNCTION_MSG("partial_pvurb = %p is not yet on ring\n", partial_pvurb);
RemoveEntryList(&partial_pvurb->entry);
ExFreePoolWithTag(partial_pvurb, XENUSB_POOL_TAG);
pvurb->ref--;
partial_pvurb = next_partial_pvurb;
}
partial_pvurb = (partial_pvurb_t *)xudd->partial_pvurb_ring.Flink;
while (partial_pvurb != (partial_pvurb_t *)&xudd->partial_pvurb_ring) {
partial_pvurb_t *next_partial_pvurb = (partial_pvurb_t *)partial_pvurb->entry.Flink;
partial_pvurb_t *partial_pvurb_cancel;
FUNCTION_MSG("partial_pvurb = %p is on ring\n", partial_pvurb);
ASSERT(partial_pvurb->on_ring);
partial_pvurb_cancel = ExAllocatePoolWithTag(NonPagedPool, sizeof(*partial_pvurb_cancel), XENUSB_POOL_TAG); /* todo - use lookaside */
ASSERT(partial_pvurb_cancel); /* what would we do if this failed? */
partial_pvurb_cancel->req = partial_pvurb->req;
partial_pvurb_cancel->req.pipe = usbif_setunlink_pipe(partial_pvurb_cancel->req.pipe);
partial_pvurb_cancel->req.u.unlink.unlink_id = partial_pvurb->req.id;
partial_pvurb_cancel->pvurb = pvurb;
partial_pvurb_cancel->mdl = NULL;
partial_pvurb_cancel->other_partial_pvurb = partial_pvurb;
partial_pvurb->other_partial_pvurb = partial_pvurb_cancel;
partial_pvurb_cancel->on_ring = FALSE;
pvurb->ref++;
InsertHeadList(&xudd->partial_pvurb_queue, &partial_pvurb_cancel->entry);
partial_pvurb = next_partial_pvurb;
}
if (pvurb->ref) {
PutRequestsOnRing(xudd);
KeReleaseSpinLock(&xudd->urb_ring_lock, old_irql);
} else {
KeReleaseSpinLock(&xudd->urb_ring_lock, old_irql);
WdfRequestComplete(request, STATUS_CANCELLED);
}
FUNCTION_EXIT();
}
NTSTATUS
SerialCompleteIfError(
PSERIAL_DEVICE_EXTENSION extension,
WDFREQUEST Request
)
/*++
Routine Description:
If the current request is not an IOCTL_SERIAL_GET_COMMSTATUS request and
there is an error and the application requested abort on errors,
then cancel the request.
Arguments:
extension - Pointer to the device context
Request - Pointer to the WDFREQUEST to test.
Return Value:
STATUS_SUCCESS or STATUS_CANCELLED.
--*/
{
WDF_REQUEST_PARAMETERS params;
NTSTATUS status = STATUS_SUCCESS;
if ((extension->HandFlow.ControlHandShake &
SERIAL_ERROR_ABORT) && extension->ErrorWord) {
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(
Request,
¶ms
);
//
// There is a current error in the driver. No requests should
// come through except for the GET_COMMSTATUS.
//
if ((params.Type != WdfRequestTypeDeviceControl) ||
(params.Parameters.DeviceIoControl.IoControlCode != IOCTL_SERIAL_GET_COMMSTATUS)) {
status = STATUS_CANCELLED;
SerialCompleteRequest(Request, status, 0);
}
}
return status;
}
VOID
OnTopLevelIoDefault(
_In_ WDFQUEUE FxQueue,
_In_ WDFREQUEST FxRequest
)
/*++
Routine Description:
Accepts all incoming requests and pends or forwards appropriately.
Arguments:
FxQueue - Handle to the framework queue object that is associated with the
I/O request.
FxRequest - Handle to a framework request object.
Return Value:
None.
--*/
{
FuncEntry(TRACE_FLAG_SPBAPI);
UNREFERENCED_PARAMETER(FxQueue);
WDFDEVICE device;
PDEVICE_CONTEXT pDevice;
WDF_REQUEST_PARAMETERS params;
NTSTATUS status;
device = WdfIoQueueGetDevice(FxQueue);
pDevice = GetDeviceContext(device);
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(FxRequest, ¶ms);
status = WdfRequestForwardToIoQueue(FxRequest, pDevice->SpbQueue);
if (!NT_SUCCESS(status))
{
CyapaPrint(
DEBUG_LEVEL_ERROR,
DBG_IOCTL,
"Failed to forward WDFREQUEST %p to SPB queue %p - %!STATUS!",
FxRequest,
pDevice->SpbQueue,
status);
WdfRequestComplete(FxRequest, status);
}
FuncExit(TRACE_FLAG_SPBAPI);
}
static VOID
XenPci_IoWatch(char *path, PVOID context)
{
NTSTATUS status;
watch_context_t *watch_context = context;
WDFFILEOBJECT file_object = watch_context->file_object;
PXENPCI_DEVICE_INTERFACE_DATA xpdid = GetXpdid(file_object);
KIRQL old_irql;
struct xsd_sockmsg *rep;
xenbus_read_queue_item_t *list_entry;
size_t remaining;
WDFREQUEST request;
FUNCTION_ENTER();
KeAcquireSpinLock(&xpdid->lock, &old_irql);
remaining = sizeof(struct xsd_sockmsg) + strlen(path) + 1 + strlen(watch_context->token) + 1;
rep = ExAllocatePoolWithTag(NonPagedPool, sizeof(struct xsd_sockmsg) + strlen(path) + 1 + strlen(watch_context->token) + 1, XENPCI_POOL_TAG);
rep->type = XS_WATCH_EVENT;
rep->req_id = 0;
rep->tx_id = 0;
rep->len = (ULONG)(strlen(path) + 1 + strlen(watch_context->token) + 1);
remaining -= sizeof(struct xsd_sockmsg);
RtlStringCbCopyA((PCHAR)(rep + 1), remaining, path);
remaining -= strlen(path) + 1;
RtlStringCbCopyA((PCHAR)(rep + 1) + strlen(path) + 1, remaining, watch_context->token);
list_entry = (xenbus_read_queue_item_t *)ExAllocatePoolWithTag(NonPagedPool, sizeof(xenbus_read_queue_item_t), XENPCI_POOL_TAG);
list_entry->data = rep;
list_entry->length = sizeof(*rep) + rep->len;
list_entry->offset = 0;
InsertTailList(&xpdid->xenbus.read_list_head, (PLIST_ENTRY)list_entry);
status = WdfIoQueueRetrieveNextRequest(xpdid->xenbus.io_queue, &request);
if (NT_SUCCESS(status))
{
WDF_REQUEST_PARAMETERS parameters;
WDF_REQUEST_PARAMETERS_INIT(¶meters);
WdfRequestGetParameters(request, ¶meters);
KdPrint((__DRIVER_NAME " found pending read - MinorFunction = %d, length = %d\n", (ULONG)parameters.MinorFunction, (ULONG)parameters.Parameters.Read.Length));
XenBus_ProcessReadRequest(xpdid->xenbus.io_queue, request, parameters.Parameters.Read.Length);
KeReleaseSpinLock(&xpdid->lock, old_irql);
WdfRequestComplete(request, STATUS_SUCCESS);
}
else
{
KdPrint((__DRIVER_NAME " no pending read (%08x)\n", status));
KeReleaseSpinLock(&xpdid->lock, old_irql);
}
FUNCTION_EXIT();
}
static VOID
XenUsb_EvtIoDefault(
WDFQUEUE queue,
WDFREQUEST request)
{
NTSTATUS status;
WDF_REQUEST_PARAMETERS parameters;
FUNCTION_ENTER();
UNREFERENCED_PARAMETER(queue);
status = STATUS_BAD_INITIAL_PC;
WDF_REQUEST_PARAMETERS_INIT(¶meters);
WdfRequestGetParameters(request, ¶meters);
switch (parameters.Type)
{
case WdfRequestTypeCreate:
FUNCTION_MSG("WdfRequestTypeCreate\n");
break;
case WdfRequestTypeClose:
FUNCTION_MSG("WdfRequestTypeClose\n");
break;
case WdfRequestTypeRead:
FUNCTION_MSG("WdfRequestTypeRead\n");
break;
case WdfRequestTypeWrite:
FUNCTION_MSG("WdfRequestTypeWrite\n");
break;
case WdfRequestTypeDeviceControl:
FUNCTION_MSG("WdfRequestTypeDeviceControl\n");
break;
case WdfRequestTypeDeviceControlInternal:
FUNCTION_MSG("WdfRequestTypeDeviceControlInternal\n");
break;
default:
FUNCTION_MSG("Unknown type %x\n", parameters.Type);
break;
}
WdfRequestComplete(request, status);
FUNCTION_EXIT();
}
__forceinline
void
PwmCreateRequestGetAccess(
_In_ WDFREQUEST WdfRequest,
_Out_ ACCESS_MASK* DesiredAccessPtr,
_Out_ ULONG* ShareAccessPtr
)
{
NT_ASSERT(ARGUMENT_PRESENT(DesiredAccessPtr));
NT_ASSERT(ARGUMENT_PRESENT(ShareAccessPtr));
WDF_REQUEST_PARAMETERS wdfRequestParameters;
WDF_REQUEST_PARAMETERS_INIT(&wdfRequestParameters);
WdfRequestGetParameters(WdfRequest, &wdfRequestParameters);
NT_ASSERTMSG(
"Expected create request",
wdfRequestParameters.Type == WdfRequestTypeCreate);
*DesiredAccessPtr =
wdfRequestParameters.Parameters.Create.SecurityContext->DesiredAccess;
*ShareAccessPtr = wdfRequestParameters.Parameters.Create.ShareAccess;
}
///////////////////////////////////////////////////////////////////////////////
// SmplFilterEvtIoDefault
///////////////////////////////////////////////////////////////////////////////
VOID SmplFilterEvtIoDefault(
__in WDFQUEUE Queue,
__in WDFREQUEST Request
)
{
WDF_REQUEST_PARAMETERS RequestParameters;
BOOLEAN bResult;
WDF_REQUEST_PARAMETERS_INIT(&RequestParameters);
WdfRequestGetParameters(Request, &RequestParameters);
if(WdfRequestTypeRead == RequestParameters.Type)
{
DbgPrintEx( DPFLTR_IHVDRIVER_ID, 1234, "SmplFilterEvtIoDefault WdfRequestTypeRead\n");
WdfRequestFormatRequestUsingCurrentType(Request);
WdfRequestSetCompletionRoutine(Request, SmplFilterCompletionRoutineRead, NULL);
bResult = WdfRequestSend(Request,
WdfDeviceGetIoTarget(WdfIoQueueGetDevice(Queue)),
NULL);
}
else
{
WDF_REQUEST_SEND_OPTIONS Options;
WDF_REQUEST_SEND_OPTIONS_INIT(&Options, WDF_REQUEST_SEND_OPTION_SEND_AND_FORGET);
DbgPrintEx( DPFLTR_IHVDRIVER_ID, 1234, "SmplFilterEvtIoDefault other Request type\n");
bResult = WdfRequestSend(Request,
WdfDeviceGetIoTarget(WdfIoQueueGetDevice(Queue)),
&Options);
}
if(FALSE == bResult)
{
DbgPrintEx( DPFLTR_IHVDRIVER_ID, 1234, "WdfRequestSend failed!\n");
WdfRequestComplete(Request, WdfRequestGetStatus(Request));
}
} // end SmplFilterEvtIoDefault
VOID
tgwinkEvtIoRead(
WDFQUEUE Queue,
WDFREQUEST Request,
size_t Length
)
{
NTSTATUS status;
WDFMEMORY mem;
WDF_REQUEST_PARAMETERS params;
ULONG offset;
ULONG result;
PDEVICE_CONTEXT context;
WDFDEVICE device;
device = WdfIoQueueGetDevice(Queue);
context = DeviceGetContext(device);
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(Request, ¶ms);
offset = (ULONG)params.Parameters.Read.DeviceOffset;
status = WdfRequestRetrieveOutputMemory(Request, &mem);
if (!NT_SUCCESS(status)) {
KdPrint("tgwinkEvtIoRead could not get request memory buffer, status 0x%x\n", status);
WdfVerifierDbgBreakPoint();
WdfRequestCompleteWithInformation(Request, status, 0);
return;
}
result = context->busInterface.GetBusData(context->busInterface.Context, PCI_WHICHSPACE_CONFIG, WdfMemoryGetBuffer(mem, NULL), offset, (ULONG)Length);
WdfRequestCompleteWithInformation(Request, STATUS_SUCCESS, (ULONG_PTR)result);
}
VOID
SerialStartOrQueue(
IN PSERIAL_DEVICE_EXTENSION Extension,
IN WDFREQUEST Request,
IN WDFQUEUE QueueToExamine,
IN WDFREQUEST *CurrentOpRequest,
IN PSERIAL_START_ROUTINE Starter
)
/*++
Routine Description:
This routine is used to either start or queue any requst
that can be queued in the driver.
Arguments:
Extension - Points to the serial device extension.
Request - The request to either queue or start. In either
case the request will be marked pending.
QueueToExamine - The queue the request will be place on if there
is already an operation in progress.
CurrentOpRequest - Pointer to a pointer to the request the is current
for the queue. The pointer pointed to will be
set with to Request if what CurrentOpRequest points to
is NULL.
Starter - The routine to call if the queue is empty.
Return Value:
--*/
{
NTSTATUS status;
PREQUEST_CONTEXT reqContext;
WDF_REQUEST_PARAMETERS params;
reqContext = SerialGetRequestContext(Request);
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(
Request,
¶ms);
//
// If this is a write request then take the amount of characters
// to write and add it to the count of characters to write.
//
if (params.Type == WdfRequestTypeWrite) {
Extension->TotalCharsQueued += reqContext->Length;
} else if ((params.Type == WdfRequestTypeDeviceControl) &&
((params.Parameters.DeviceIoControl.IoControlCode == IOCTL_SERIAL_IMMEDIATE_CHAR) ||
(params.Parameters.DeviceIoControl.IoControlCode == IOCTL_SERIAL_XOFF_COUNTER))) {
reqContext->IoctlCode = params.Parameters.DeviceIoControl.IoControlCode; // We need this in the destroy callback
Extension->TotalCharsQueued++;
}
if (IsQueueEmpty(QueueToExamine) && !(*CurrentOpRequest)) {
//
// There were no current operation. Mark this one as
// current and start it up.
//
*CurrentOpRequest = Request;
Starter(Extension);
return;
} else {
//
// We don't know how long the request will be in the
// queue. If it gets cancelled while waiting in the queue, we will
// be notified by EvtCanceledOnQueue callback so that we can readjust
// the lenght or free the buffer.
//
reqContext->Extension = Extension; // We need this in the destroy callback
status = WdfRequestForwardToIoQueue(Request, QueueToExamine);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_READ, "WdfRequestForwardToIoQueue failed%X\n", status);
ASSERTMSG("WdfRequestForwardToIoQueue failed ", FALSE);
SerialCompleteRequest(Request, status, 0);
}
return;
}
}
NTSTATUS HidFx2SetOutput(_In_ WDFREQUEST hRequest)
{
NTSTATUS status = STATUS_SUCCESS;
PHID_XFER_PACKET pTransferPacket = NULL;
WDF_REQUEST_PARAMETERS params;
PHIDFX2_IO_REPORT pOutputReport = NULL;
WDFDEVICE hDevice;
PAGED_CODE();
TraceVerbose(DBG_IOCTL, "(%!FUNC!) Enter\n");
hDevice = WdfIoQueueGetDevice(WdfRequestGetIoQueue(hRequest));
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(hRequest, ¶ms);
if (params.Parameters.DeviceIoControl.InputBufferLength < sizeof(HID_XFER_PACKET))
{
status = STATUS_BUFFER_TOO_SMALL;
TraceErr(DBG_IOCTL, "(%!FUNC!) Userbuffer is small %!STATUS!\n", status);
return status;
}
pTransferPacket = (PHID_XFER_PACKET) WdfRequestWdmGetIrp(hRequest)->UserBuffer;
if (pTransferPacket == NULL)
{
status = STATUS_INVALID_DEVICE_REQUEST;
TraceErr(DBG_IOCTL, "(%!FUNC!) Irp->UserBuffer is NULL %!STATUS!\n", status);
return status;
}
if (pTransferPacket->reportBufferLen == 0)
{
status = STATUS_BUFFER_TOO_SMALL;
TraceErr(DBG_IOCTL, "(%!FUNC!) HID_XFER_PACKET->reportBufferLen is 0, %!STATUS!\n", status);
return status;
}
if (pTransferPacket->reportBufferLen < sizeof(UCHAR))
{
status = STATUS_BUFFER_TOO_SMALL;
TraceErr(DBG_IOCTL, "(%!FUNC!) HID_XFER_PACKET->reportBufferLen is too small, %!STATUS!\n", status);
return status;
}
if (pTransferPacket->reportId != GENERIC_DESKTOP_REPORT_ID)
{
status = STATUS_INVALID_DEVICE_REQUEST;
TraceErr(DBG_IOCTL, "(%!FUNC!) Incorrect report ID, %!STATUS!\n", status);
return status;
}
pOutputReport = (PHIDFX2_IO_REPORT)pTransferPacket->reportBuffer;
if (pOutputReport->bData == 0)
{
status = SendVendorCommand(hDevice, HIDFX2_SET_BARGRAPH_DISPLAY, BARGRAPH_LED_ALL_OFF);
}
else
{
status = SendVendorCommand(hDevice, HIDFX2_SET_BARGRAPH_DISPLAY, BARGRAPH_LED_ALL_ON);
}
TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit status %!STATUS!\n", status);
return status;
}
NTSTATUS HidFx2GetInput(_In_ WDFREQUEST hRequest)
{
NTSTATUS status = STATUS_SUCCESS;
WDF_REQUEST_PARAMETERS params;
WDFDEVICE hDevice;
PHID_XFER_PACKET pTransferPacket = NULL;
PHIDFX2_IO_REPORT pOutputReport = NULL;
unsigned char bSwitchState = 0;
PAGED_CODE();
TraceVerbose(DBG_IOCTL, "(%!FUNC!) Enter\n");
hDevice = WdfIoQueueGetDevice(WdfRequestGetIoQueue(hRequest));
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(hRequest, ¶ms);
if (params.Parameters.DeviceIoControl.OutputBufferLength < sizeof(HID_XFER_PACKET))
{
status = STATUS_BUFFER_TOO_SMALL;
TraceErr(DBG_IOCTL, "(%!FUNC!) Userbuffer is small %!STATUS!\n", status);
return status;
}
pTransferPacket = (PHID_XFER_PACKET) WdfRequestWdmGetIrp(hRequest)->UserBuffer;
if (pTransferPacket == NULL)
{
status = STATUS_INVALID_DEVICE_REQUEST;
TraceErr(DBG_IOCTL, "(%!FUNC!) Irp->UserBuffer is NULL %!STATUS!\n", status);
return status;
}
if (pTransferPacket->reportBufferLen == 0)
{
status = STATUS_BUFFER_TOO_SMALL;
TraceErr(DBG_IOCTL, "(%!FUNC!) HID_XFER_PACKET->reportBufferLen is 0, %!STATUS!\n", status);
return status;
}
if (pTransferPacket->reportBufferLen < sizeof(UCHAR))
{
status = STATUS_BUFFER_TOO_SMALL;
TraceErr(DBG_IOCTL, "(%!FUNC!) HID_XFER_PACKET->reportBufferLen is too small, %!STATUS!\n", status);
return status;
}
if (pTransferPacket->reportId != GENERIC_DESKTOP_REPORT_ID)
{
status = STATUS_INVALID_DEVICE_REQUEST;
TraceErr(DBG_IOCTL, "(%!FUNC!) Incorrect report ID, %!STATUS!\n", status);
return status;
}
pOutputReport = (PHIDFX2_IO_REPORT)pTransferPacket->reportBuffer;
// Get the switch state directly from the hardware
status = HidFx2GetSwitchState(hDevice, &bSwitchState);
TraceVerbose(DBG_IOCTL, "(%!FUNC!) switch state 0x%x\n", bSwitchState);
//Mask off everything except the actual switch bit
bSwitchState &= RADIO_SWITCH_BUTTONS_BIT_MASK;
TraceVerbose(DBG_IOCTL, "(%!FUNC!) maskedswitch state 0x%x\n", bSwitchState);
pOutputReport->bReportId = GENERIC_DESKTOP_REPORT_ID;
pOutputReport->bData = bSwitchState;
TraceVerbose(DBG_IOCTL, "(%!FUNC!) Exit status %!STATUS!\n", status);
return status;
}
VOID
AmccPciEvtIoDefault(
__in WDFQUEUE Queue,
__in WDFREQUEST Request
)
/*++
Routine Description:
Start the IRP on the device. This driver allows only one I/O to
be active on the adapter at any one time. If multiple I/Os are sent
to the driver, they will be queued and completed as they complete on
the adapter (one IRP per interrupt).
Arguments:
Queue - Default queue handle
Request - Handle to the write request
Parameters - Contains current stack location information from the IRP
Return Value:
None
--*/
{
PAMCC_DEVICE_EXTENSION devExt;
REQUEST_CONTEXT * transfer;
NTSTATUS status;
size_t length;
WDF_DMA_DIRECTION direction;
WDFDMATRANSACTION dmaTransaction;
WDF_REQUEST_PARAMETERS params;
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(
Request,
¶ms
);
//
// Get the device extension.
//
devExt = AmccPciGetDevExt(WdfIoQueueGetDevice( Queue ));
//
// Validate and gather parameters.
//
switch (params.Type) {
case WdfRequestTypeRead:
length = params.Parameters.Read.Length;
direction = WdfDmaDirectionReadFromDevice;
break;
case WdfRequestTypeWrite:
length = params.Parameters.Write.Length;
direction = WdfDmaDirectionWriteToDevice;
break;
default:
TraceEvents(TRACE_LEVEL_WARNING, AMCC_TRACE_IO,
"Request type not Read or Write\n");
WdfRequestComplete(Request, STATUS_INVALID_PARAMETER);
return;
}
TraceEvents(TRACE_LEVEL_INFORMATION, AMCC_TRACE_IO,
"Request %p: %s %d bytes",
Request, (direction)?"Write":"Read", (ULONG)length);
//
// The length must be non-zero.
//
if (length == 0) {
TraceEvents(TRACE_LEVEL_WARNING, AMCC_TRACE_IO,
"Zero transfer length input to read/write");
WdfRequestComplete(Request, STATUS_INVALID_PARAMETER);
return;
}
transfer = GetRequestContext(Request);
//
// Create new DmaRequst to conduct this DMA transaction.
//
status = WdfDmaTransactionCreate( devExt->DmaEnabler,
WDF_NO_OBJECT_ATTRIBUTES,
&dmaTransaction );
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, AMCC_TRACE_IO,
"WdfDmaRequestCreate failed: %X", status);
WdfRequestComplete(Request, status);
return;
}
//
// Create new DmaTransaction.
//
status = WdfDmaTransactionInitializeUsingRequest( dmaTransaction,
Request,
AmccPciProgramDma,
direction );
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, AMCC_TRACE_IO,
"WdfDmaRequestInitializeWithRequest failed: %X",
status);
WdfObjectDelete(dmaTransaction);
WdfRequestComplete(Request, status);
return;
}
//
// Fill transfer context structure
//
transfer->Request = Request;
transfer->DmaTransaction = dmaTransaction;
//
// Save the current Request as the "in-progress" request.
//
devExt->CurrentRequest = Request;
//
// Execute this dmaTransaction transaction.
//
status = WdfDmaTransactionExecute( dmaTransaction, WDF_NO_CONTEXT);
if (!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, AMCC_TRACE_IO,
"WdfDmaTransactionExecute failed: %X",
status);
WdfObjectDelete(dmaTransaction);
WdfRequestComplete(Request, status);
return;
}
return;
}
VOID
XenUsb_EvtIoInternalDeviceControl_ROOTHUB_SUBMIT_URB(
WDFQUEUE queue,
WDFREQUEST request,
size_t output_buffer_length,
size_t input_buffer_length,
ULONG io_control_code)
{
//NTSTATUS status;
WDFDEVICE device = WdfIoQueueGetDevice(queue);
PXENUSB_PDO_DEVICE_DATA xupdd = GetXupdd(device);
PXENUSB_DEVICE_DATA xudd = GetXudd(xupdd->wdf_device_bus_fdo);
WDF_REQUEST_PARAMETERS wrp;
PURB urb;
PUSBD_INTERFACE_INFORMATION interface_information;
ULONG i, j;
xenusb_device_t *usb_device;
xenusb_endpoint_t *endpoint;
//USB_DEFAULT_PIPE_SETUP_PACKET setup_packet;
urb_decode_t decode_data;
ULONG decode_retval;
UNREFERENCED_PARAMETER(input_buffer_length);
UNREFERENCED_PARAMETER(output_buffer_length);
UNREFERENCED_PARAMETER(io_control_code);
//FUNCTION_ENTER();
WDF_REQUEST_PARAMETERS_INIT(&wrp);
WdfRequestGetParameters(request, &wrp);
urb = (PURB)wrp.Parameters.Others.Arg1;
ASSERT(urb);
#if 0
FUNCTION_MSG("urb = %p\n", urb);
FUNCTION_MSG(" Length = %d\n", urb->UrbHeader.Length);
FUNCTION_MSG(" Function = %d\n", urb->UrbHeader.Function);
FUNCTION_MSG(" Status = %d\n", urb->UrbHeader.Status);
FUNCTION_MSG(" UsbdDeviceHandle = %p\n", urb->UrbHeader.UsbdDeviceHandle);
FUNCTION_MSG(" UsbdFlags = %08x\n", urb->UrbHeader.UsbdFlags);
#endif
usb_device = urb->UrbHeader.UsbdDeviceHandle;
if (!usb_device)
usb_device = xupdd->usb_device;
decode_retval = XenUsb_DecodeControlUrb(urb, &decode_data);
if (decode_retval == URB_DECODE_UNKNOWN)
{
FUNCTION_MSG("Unknown URB - Calling WdfRequestCompletestatus with status = %08x\n", STATUS_UNSUCCESSFUL); //STATUS_UNSUCCESSFUL);
urb->UrbHeader.Status = USBD_STATUS_INVALID_URB_FUNCTION;
WdfRequestComplete(request, STATUS_UNSUCCESSFUL);
return;
}
urb->UrbHeader.Status = USBD_STATUS_INVALID_URB_FUNCTION;
if (decode_retval != URB_DECODE_NOT_CONTROL)
{
FUNCTION_MSG("bmRequestType = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.B);
FUNCTION_MSG(" Recipient = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
FUNCTION_MSG(" Type = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Type);
FUNCTION_MSG(" Dir = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Dir);
FUNCTION_MSG("bRequest = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.bRequest);
FUNCTION_MSG("wValue = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.W);
FUNCTION_MSG(" Low = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.LowByte);
FUNCTION_MSG(" High = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.HiByte);
FUNCTION_MSG("wIndex = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex);
FUNCTION_MSG(" Low = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte);
FUNCTION_MSG(" High = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.HiByte);
FUNCTION_MSG("wLength = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wLength);
}
switch(urb->UrbHeader.Function)
{
case URB_FUNCTION_SELECT_CONFIGURATION:
FUNCTION_MSG("URB_FUNCTION_SELECT_CONFIGURATION\n");
FUNCTION_MSG(" ConfigurationDescriptor = %p\n", urb->UrbSelectConfiguration.ConfigurationDescriptor);
if (urb->UrbSelectConfiguration.ConfigurationDescriptor)
{
FUNCTION_MSG(" bLength = %d\n", urb->UrbSelectConfiguration.ConfigurationDescriptor->bLength);
FUNCTION_MSG(" bDescriptorType = %d\n", urb->UrbSelectConfiguration.ConfigurationDescriptor->bDescriptorType);
FUNCTION_MSG(" wTotalLength = %d\n", urb->UrbSelectConfiguration.ConfigurationDescriptor->wTotalLength);
FUNCTION_MSG(" bNumInterfaces = %d\n", urb->UrbSelectConfiguration.ConfigurationDescriptor->bNumInterfaces);
FUNCTION_MSG(" bConfigurationValue = %d\n", urb->UrbSelectConfiguration.ConfigurationDescriptor->bConfigurationValue);
FUNCTION_MSG(" iConfiguration = %d\n", urb->UrbSelectConfiguration.ConfigurationDescriptor->iConfiguration);
FUNCTION_MSG(" bmAttributes = %04x\n", urb->UrbSelectConfiguration.ConfigurationDescriptor->bmAttributes);
FUNCTION_MSG(" MaxPower = %d\n", urb->UrbSelectConfiguration.ConfigurationDescriptor->MaxPower);
}
FUNCTION_MSG(" ConfigurationHandle = %p\n", urb->UrbSelectConfiguration.ConfigurationHandle);
if (urb->UrbSelectConfiguration.ConfigurationDescriptor)
{
urb->UrbSelectConfiguration.ConfigurationHandle = xupdd->usb_device->configs[0];
interface_information = &urb->UrbSelectConfiguration.Interface;
for (i = 0; i < urb->UrbSelectConfiguration.ConfigurationDescriptor->bNumInterfaces; i++)
{
FUNCTION_MSG("InterfaceInformation[%d]\n", i);
FUNCTION_MSG(" Length = %d\n", interface_information->Length);
FUNCTION_MSG(" InterfaceNumber = %d\n", interface_information->InterfaceNumber);
FUNCTION_MSG(" AlternateSetting = %d\n", interface_information->AlternateSetting);
FUNCTION_MSG(" Class = %02x\n", (ULONG)interface_information->Class);
FUNCTION_MSG(" SubClass = %02x\n", (ULONG)interface_information->SubClass);
FUNCTION_MSG(" Protocol = %02x\n", (ULONG)interface_information->Protocol);
FUNCTION_MSG(" Reserved = %02x\n", (ULONG)interface_information->Reserved);
FUNCTION_MSG(" InterfaceHandle = %p\n", interface_information->InterfaceHandle);
FUNCTION_MSG(" NumberOfPipes = %d\n", interface_information->NumberOfPipes);
interface_information->InterfaceHandle = xupdd->usb_device->configs[0]->interfaces[0];
interface_information->Class = 0x09;
interface_information->SubClass = 0x00;
interface_information->SubClass = 0x00;
for (j = 0; j < interface_information->NumberOfPipes; j++)
{
FUNCTION_MSG(" Pipe[%d]\n", i);
FUNCTION_MSG(" MaximumPacketSize = %d\n", interface_information->Pipes[j].MaximumPacketSize);
FUNCTION_MSG(" EndpointAddress = %d\n", interface_information->Pipes[j].EndpointAddress);
FUNCTION_MSG(" Interval = %d\n", interface_information->Pipes[j].Interval);
FUNCTION_MSG(" PipeType = %d\n", interface_information->Pipes[j].PipeType);
FUNCTION_MSG(" PipeHandle = %d\n", interface_information->Pipes[j].PipeHandle);
FUNCTION_MSG(" MaximumTransferSize = %d\n", interface_information->Pipes[j].MaximumTransferSize);
FUNCTION_MSG(" PipeFlags = %08x\n", interface_information->Pipes[j].PipeFlags);
interface_information->Pipes[j].MaximumPacketSize = 2;
interface_information->Pipes[j].EndpointAddress = 0x81;
interface_information->Pipes[j].Interval = 12;
interface_information->Pipes[j].PipeType = UsbdPipeTypeInterrupt;
interface_information->Pipes[j].PipeHandle = xupdd->usb_device->configs[0]->interfaces[0]->endpoints[j];
interface_information->Pipes[j].MaximumTransferSize = 4096; /* made up number - possibly not used */
// this is input actually interface_information->Pipes[j].PipeFlags = 0;
}
interface_information = (PUSBD_INTERFACE_INFORMATION)((PUCHAR)interface_information + interface_information->Length);
}
}
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case URB_FUNCTION_SELECT_INTERFACE:
FUNCTION_MSG("URB_FUNCTION_SELECT_INTERFACE\n");
interface_information = &urb->UrbSelectInterface.Interface;
FUNCTION_MSG("InterfaceInformation\n");
FUNCTION_MSG(" Length = %d\n", interface_information->Length);
FUNCTION_MSG(" InterfaceNumber = %d\n", interface_information->InterfaceNumber);
FUNCTION_MSG(" AlternateSetting = %d\n", interface_information->AlternateSetting);
FUNCTION_MSG(" Class = %02x\n", (ULONG)interface_information->Class);
FUNCTION_MSG(" SubClass = %02x\n", (ULONG)interface_information->SubClass);
FUNCTION_MSG(" Protocol = %02x\n", (ULONG)interface_information->Protocol);
FUNCTION_MSG(" Reserved = %02x\n", (ULONG)interface_information->Reserved);
FUNCTION_MSG(" InterfaceHandle = %p\n", interface_information->InterfaceHandle);
FUNCTION_MSG(" NumberOfPipes = %d\n", interface_information->NumberOfPipes);
for (i = 0; i < interface_information->NumberOfPipes; i++)
{
FUNCTION_MSG(" Pipe[%d]\n", i);
FUNCTION_MSG(" MaximumPacketSize = %d\n", interface_information->Pipes[i].MaximumPacketSize);
FUNCTION_MSG(" EndpointAddress = %d\n", interface_information->Pipes[i].EndpointAddress);
FUNCTION_MSG(" Interval = %d\n", interface_information->Pipes[i].Interval);
FUNCTION_MSG(" PipeType = %d\n", interface_information->Pipes[i].PipeType);
FUNCTION_MSG(" PipeHandle = %d\n", interface_information->Pipes[i].PipeHandle);
FUNCTION_MSG(" MaximumTransferSize = %d\n", interface_information->Pipes[i].MaximumTransferSize);
FUNCTION_MSG(" PipeFlags = %08x\n", interface_information->Pipes[i].PipeFlags);
}
urb->UrbHeader.Status = USBD_STATUS_INVALID_URB_FUNCTION;
break;
#if (NTDDI_VERSION >= NTDDI_VISTA)
case URB_FUNCTION_CONTROL_TRANSFER_EX:
#endif
case URB_FUNCTION_CONTROL_TRANSFER:
case URB_FUNCTION_CLASS_DEVICE:
case URB_FUNCTION_CLASS_OTHER:
case URB_FUNCTION_CLASS_INTERFACE:
case URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE:
case URB_FUNCTION_GET_DESCRIPTOR_FROM_INTERFACE:
case URB_FUNCTION_GET_STATUS_FROM_DEVICE:
switch(decode_data.setup_packet.default_pipe_setup_packet.bRequest)
{
case USB_REQUEST_GET_STATUS:
// switch device, interface, endpoint
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Type)
{
case BMREQUEST_STANDARD:
FUNCTION_MSG(" USB_REQUEST_GET_STATUS\n");
FUNCTION_MSG(" Type=Standard\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient)
{
case BMREQUEST_TO_DEVICE:
FUNCTION_MSG(" Recipient=Device\n");
((PUSHORT)decode_data.buffer)[0] = 0x0001; /* self powered */
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
default:
FUNCTION_MSG(" Recipient=%d\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
break;
}
break;
case BMREQUEST_CLASS:
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient)
{
case BMREQUEST_TO_DEVICE:
((PUSHORT)decode_data.buffer)[0] = 0x0000;
((PUSHORT)decode_data.buffer)[1] = 0x0000;
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case BMREQUEST_TO_OTHER:
FUNCTION_MSG(" USB_REQUEST_GET_STATUS\n");
FUNCTION_MSG(" Type=Class\n");
FUNCTION_MSG(" Recipient=Other (port = %d)\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte);
((PUSHORT)decode_data.buffer)[0] = xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_status;
((PUSHORT)decode_data.buffer)[1] = xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_change;
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
FUNCTION_MSG(" status = %04x, change = %04x\n",
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_status,
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_change);
break;
default:
FUNCTION_MSG(" USB_REQUEST_GET_STATUS\n");
FUNCTION_MSG(" Type=Class\n");
FUNCTION_MSG(" Recipient=%d\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
break;
}
break;
default:
FUNCTION_MSG(" USB_REQUEST_GET_STATUS\n");
FUNCTION_MSG(" Type=%d\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Type);
break;
}
break;
case USB_REQUEST_GET_DESCRIPTOR:
FUNCTION_MSG(" USB_REQUEST_GET_DESCRIPTOR\n");
// should separate into Standard and Class
switch (decode_data.setup_packet.default_pipe_setup_packet.wValue.HiByte)
{
case USB_DEVICE_DESCRIPTOR_TYPE:
FUNCTION_MSG(" USB_DEVICE_DESCRIPTOR_TYPE\n");
FUNCTION_MSG(" length = %d\n", *decode_data.length);
memcpy(decode_data.buffer, &usb_device->device_descriptor, sizeof(USB_DEVICE_DESCRIPTOR));
*decode_data.length = sizeof(USB_DEVICE_DESCRIPTOR);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case USB_CONFIGURATION_DESCRIPTOR_TYPE:
{
xenusb_config_t *usb_config;
PUCHAR ptr;
FUNCTION_MSG(" USB_CONFIGURATION_DESCRIPTOR_TYPE\n");
FUNCTION_MSG(" length = %d\n", *decode_data.length);
usb_config = usb_device->active_config;
ptr = (PUCHAR)decode_data.buffer;
memcpy(ptr, &usb_config->config_descriptor, sizeof(USB_CONFIGURATION_DESCRIPTOR));
ptr += sizeof(USB_CONFIGURATION_DESCRIPTOR);
((PUSB_CONFIGURATION_DESCRIPTOR)decode_data.buffer)->wTotalLength = sizeof(USB_CONFIGURATION_DESCRIPTOR);
if (*decode_data.length > 9)
{
for (i = 0; i < usb_config->config_descriptor.bNumInterfaces; i++)
{
memcpy(ptr, &usb_config->interfaces[i]->interface_descriptor, sizeof(USB_INTERFACE_DESCRIPTOR));
ptr += sizeof(USB_INTERFACE_DESCRIPTOR);
((PUSB_CONFIGURATION_DESCRIPTOR)decode_data.buffer)->wTotalLength += sizeof(USB_INTERFACE_DESCRIPTOR);
for (j = 0; j < usb_config->interfaces[i]->interface_descriptor.bNumEndpoints; j++)
{
memcpy(ptr, &usb_config->interfaces[i]->endpoints[j]->endpoint_descriptor, sizeof(USB_ENDPOINT_DESCRIPTOR));
ptr += sizeof(USB_ENDPOINT_DESCRIPTOR);
((PUSB_CONFIGURATION_DESCRIPTOR)decode_data.buffer)->wTotalLength += sizeof(USB_ENDPOINT_DESCRIPTOR);
}
}
}
*decode_data.length = ((PUSB_CONFIGURATION_DESCRIPTOR)decode_data.buffer)->wTotalLength;
//if (urb->UrbControlDescriptorRequest.TransferBufferLength == 9)
// ((PUSB_CONFIGURATION_DESCRIPTOR)decode_data.buffer)->wTotalLength = 32;
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
}
case 0x00: // unknown... doing the same as 0x29 seems to work
FUNCTION_MSG(" USB_00_DESCRIPTOR_TYPE (doesn't exist)\n");
urb->UrbHeader.Status = USBD_STATUS_BAD_DESCRIPTOR;
break;
case 0x29: // Hub Descriptor
{
PUSB_HUB_DESCRIPTOR uhd;
FUNCTION_MSG(" USB_HUB_DESCRIPTOR_TYPE\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.HiByte);
FUNCTION_MSG(" length = %d\n", *decode_data.length);
uhd = decode_data.buffer;
// TODO adjust for real number of ports
*decode_data.length = FIELD_OFFSET(USB_HUB_DESCRIPTOR, bRemoveAndPowerMask[0]) + 2 + 1;
uhd->bDescriptorLength = (UCHAR)*decode_data.length;
uhd->bDescriptorType = 0x29;
uhd->bNumberOfPorts = (UCHAR)xudd->num_ports;
uhd->wHubCharacteristics = 0x0012; // no power switching no overcurrent protection
uhd->bPowerOnToPowerGood = 1; // 2ms units
uhd->bHubControlCurrent = 0;
// DeviceRemovable bits (includes an extra bit at the start)
uhd->bRemoveAndPowerMask[0] = 0;
uhd->bRemoveAndPowerMask[1] = 0;
// PortPwrCtrlMask
uhd->bRemoveAndPowerMask[2] = 0xFF;
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
}
default:
FUNCTION_MSG(" USB_%02x_DESCRIPTOR_TYPE\n", (ULONG)decode_data.setup_packet.default_pipe_setup_packet.wValue.HiByte);
FUNCTION_MSG("bmRequestType = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.B);
FUNCTION_MSG(" Recipient = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
FUNCTION_MSG(" Type = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Type);
FUNCTION_MSG(" Dir = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Dir);
FUNCTION_MSG("bRequest = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.bRequest);
FUNCTION_MSG("wValue = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.W);
FUNCTION_MSG(" Low = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.LowByte);
FUNCTION_MSG(" High = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.HiByte);
FUNCTION_MSG("wIndex = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex);
FUNCTION_MSG(" Low = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte);
FUNCTION_MSG(" High = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.HiByte);
FUNCTION_MSG("wLength = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wLength);
break;
}
break;
case USB_REQUEST_CLEAR_FEATURE:
FUNCTION_MSG(" USB_REQUEST_CLEAR_FEATURE\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Type)
{
case BMREQUEST_STANDARD: /* Standard */
FUNCTION_MSG(" Type=Standard\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient)
{
case BMREQUEST_TO_DEVICE:
FUNCTION_MSG(" Recipient=Device\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.wValue.W)
{
case 1: /* DEVICE_REMOTE_WAKEUP */
FUNCTION_MSG(" Feature=DEVICE_REMOTE_WAKEUP\n");
/* fake this */
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
default:
FUNCTION_MSG(__DRIVER_NAME " Feature=%d (not valid)\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.W);
break;
}
break;
default:
FUNCTION_MSG(__DRIVER_NAME " Recipient=%d (not valid)\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
break;
}
break;
break;
case BMREQUEST_CLASS: /* Class */
FUNCTION_MSG(" Type=Class\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient)
{
case BMREQUEST_TO_OTHER:
FUNCTION_MSG(" Recipient=Other (port = %d)\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte);
switch (urb->UrbControlVendorClassRequest.Value)
{
case PORT_ENABLE:
FUNCTION_MSG(" PORT_ENABLE\n");
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_status &= ~(1 << PORT_ENABLE);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case PORT_SUSPEND:
FUNCTION_MSG(" PORT_SUSPEND (NOOP)\n");
/* do something here */
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case C_PORT_CONNECTION:
FUNCTION_MSG(" C_PORT_CONNECTION\n");
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_change &= ~(1 << PORT_CONNECTION);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case C_PORT_ENABLE:
FUNCTION_MSG(" C_PORT_ENABLE\n");
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_change &= ~(1 << PORT_ENABLE);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case C_PORT_RESET:
FUNCTION_MSG(" C_PORT_RESET\n");
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_change &= ~(1 << PORT_RESET);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
default:
FUNCTION_MSG(" Unknown Value %04X\n", urb->UrbControlVendorClassRequest.Value);
break;
}
FUNCTION_MSG(" status = %04x, change = %04x\n",
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_status,
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_change);
break;
default:
FUNCTION_MSG(" Recipient=%d\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
break;
}
break;
default:
FUNCTION_MSG(" Type=%d\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Type);
break;
}
break;
case USB_REQUEST_SET_FEATURE:
FUNCTION_MSG(" USB_REQUEST_SET_FEATURE\n");
FUNCTION_MSG(" SetPortFeature\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Type)
{
case 0: /* Standard */
FUNCTION_MSG(" Type=Standard\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient)
{
case BMREQUEST_TO_DEVICE:
FUNCTION_MSG(" Recipient=Device\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.wValue.W)
{
case 1: /* DEVICE_REMOTE_WAKEUP */
FUNCTION_MSG(" Feature=DEVICE_REMOTE_WAKEUP\n");
/* fake this */
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
default:
FUNCTION_MSG(__DRIVER_NAME " Feature=%d (not valid)\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.W);
break;
}
break;
default:
FUNCTION_MSG(__DRIVER_NAME " Recipient=%d (not valid)\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
break;
}
break;
case 1: /* Class */
FUNCTION_MSG(" Type=Class\n");
switch (decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient)
{
case BMREQUEST_TO_OTHER:
FUNCTION_MSG(" Recipient=Other (port = %d)\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte);
switch (decode_data.setup_packet.default_pipe_setup_packet.wValue.W)
{
case PORT_ENABLE:
FUNCTION_MSG(" PORT_ENABLE (NOOP)\n");
/* do something here */
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case PORT_SUSPEND:
FUNCTION_MSG(" PORT_SUSPEND (NOOP)\n");
/* do something here */
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case PORT_RESET:
FUNCTION_MSG(" PORT_RESET\n");
/* just fake the reset by setting the status bit to indicate that the reset is complete*/
//xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_status |= (1 << PORT_RESET);
//xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].reset_counter = 10;
// TODO: maybe fake a 10ms time here...
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_status &= ~(1 << PORT_RESET);
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_status |= (1 << PORT_ENABLE);
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_change |= (1 << PORT_RESET);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
endpoint = xupdd->usb_device->configs[0]->interfaces[0]->endpoints[0];
XenUsbHub_ProcessHubInterruptEvent(endpoint);
break;
case PORT_POWER:
FUNCTION_MSG(" PORT_POWER\n");
xudd->ports[decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte - 1].port_status |= (1 << PORT_POWER);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
default:
FUNCTION_MSG(" PORT_%04X\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.W);
break;
}
FUNCTION_MSG(" status = %04x, change = %04x\n",
xudd->ports[urb->UrbControlVendorClassRequest.Index - 1].port_status,
xudd->ports[urb->UrbControlVendorClassRequest.Index - 1].port_change);
break;
default:
FUNCTION_MSG(__DRIVER_NAME " Recipient=%d (not valid)\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
break;
}
break;
}
break;
default:
FUNCTION_MSG(" USB_REQUEST_%02x\n", (ULONG)decode_data.setup_packet.default_pipe_setup_packet.bRequest);
FUNCTION_MSG(" TransferBufferLength returned = %d\n", urb->UrbControlDescriptorRequest.TransferBufferLength);
break;
}
break;
case URB_FUNCTION_SYNC_RESET_PIPE_AND_CLEAR_STALL:
FUNCTION_MSG("URB_FUNCTION_SYNC_RESET_PIPE_AND_CLEAR_STALL\n");
FUNCTION_MSG(" PipeHandle = %p\n", urb->UrbPipeRequest.PipeHandle);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case URB_FUNCTION_ABORT_PIPE:
FUNCTION_MSG("URB_FUNCTION_ABORT_PIPE\n");
FUNCTION_MSG(" PipeHandle = %p\n", urb->UrbPipeRequest.PipeHandle);
urb->UrbHeader.Status = USBD_STATUS_SUCCESS;
break;
case URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER: /* 11.12.4 */
#if 0
FUNCTION_MSG("URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER\n");
FUNCTION_MSG(" PipeHandle = %p\n", urb->UrbBulkOrInterruptTransfer.PipeHandle);
FUNCTION_MSG(" TransferFlags = %08x\n", urb->UrbBulkOrInterruptTransfer.TransferFlags);
FUNCTION_MSG(" TransferBufferLength = %d\n", urb->UrbBulkOrInterruptTransfer.TransferBufferLength);
FUNCTION_MSG(" TransferBuffer = %p\n", urb->UrbBulkOrInterruptTransfer.TransferBuffer);
FUNCTION_MSG(" TransferBufferMdl = %p\n", urb->UrbBulkOrInterruptTransfer.TransferBufferMDL);
#endif
endpoint = urb->UrbBulkOrInterruptTransfer.PipeHandle;
//WdfSpinLockAcquire(endpoint->lock);
WdfRequestForwardToIoQueue(request, endpoint->queue);
XenUsbHub_ProcessHubInterruptEvent(endpoint);
//WdfSpinLockRelease(endpoint->lock);
//FUNCTION_EXIT();
return;
default:
FUNCTION_MSG("URB_FUNCTION_%04x\n", urb->UrbHeader.Function);
if (decode_retval != URB_DECODE_NOT_CONTROL)
{
FUNCTION_MSG("bmRequestType = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.B);
FUNCTION_MSG(" Recipient = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Recipient);
FUNCTION_MSG(" Type = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Type);
FUNCTION_MSG(" Dir = %x\n", decode_data.setup_packet.default_pipe_setup_packet.bmRequestType.Dir);
FUNCTION_MSG("bRequest = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.bRequest);
FUNCTION_MSG("wValue = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.W);
FUNCTION_MSG(" Low = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.LowByte);
FUNCTION_MSG(" High = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wValue.HiByte);
FUNCTION_MSG("wIndex = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex);
FUNCTION_MSG(" Low = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.LowByte);
FUNCTION_MSG(" High = %02x\n", decode_data.setup_packet.default_pipe_setup_packet.wIndex.HiByte);
FUNCTION_MSG("wLength = %04x\n", decode_data.setup_packet.default_pipe_setup_packet.wLength);
}
urb->UrbHeader.Status = USBD_STATUS_INVALID_URB_FUNCTION;
break;
}
if (urb->UrbHeader.Status == USBD_STATUS_SUCCESS)
{
//FUNCTION_MSG("Calling WdfRequestCompletestatus with status = %08x\n", STATUS_SUCCESS);
WdfRequestComplete(request, STATUS_SUCCESS);
}
else
{
FUNCTION_MSG("Calling WdfRequestCompletestatus with status = %08x\n", STATUS_UNSUCCESSFUL);
WdfRequestComplete(request, STATUS_UNSUCCESSFUL);
}
//FUNCTION_EXIT();
return;
}
VOID
NonPnpEvtDeviceIoInCallerContext(
IN WDFDEVICE Device,
IN WDFREQUEST Request
)
/*++
Routine Description:
This I/O in-process callback is called in the calling threads context/address
space before the request is subjected to any framework locking or queueing
scheme based on the device pnp/power or locking attributes set by the
driver. The process context of the calling app is guaranteed as long as
this driver is a top-level driver and no other filter driver is attached
to it.
This callback is only required if you are handling method-neither IOCTLs,
or want to process requests in the context of the calling process.
Driver developers should avoid defining neither IOCTLs and access user
buffers, and use much safer I/O tranfer methods such as buffered I/O
or direct I/O.
Arguments:
Device - Handle to a framework device object.
Request - Handle to a framework request object. Framework calls
PreProcess callback only for Read/Write/ioctls and internal
ioctl requests.
Return Value:
VOID
--*/
{
NTSTATUS status = STATUS_SUCCESS;
PREQUEST_CONTEXT reqContext = NULL;
WDF_OBJECT_ATTRIBUTES attributes;
WDF_REQUEST_PARAMETERS params;
size_t inBufLen, outBufLen;
PVOID inBuf, outBuf;
PAGED_CODE();
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(Request, ¶ms );
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTL, "Entered NonPnpEvtDeviceIoInCallerContext %p \n",
Request);
//
// Check to see whether we have recevied a METHOD_NEITHER IOCTL. if not
// just send the request back to framework because we aren't doing
// any pre-processing in the context of the calling thread process.
//
if(!(params.Type == WdfRequestTypeDeviceControl &&
params.Parameters.DeviceIoControl.IoControlCode ==
IOCTL_NONPNP_METHOD_NEITHER)) {
//
// Forward it for processing by the I/O package
//
status = WdfDeviceEnqueueRequest(Device, Request);
if( !NT_SUCCESS(status) ) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL,
"Error forwarding Request 0x%x", status);
goto End;
}
return;
}
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTL, "EvtIoPreProcess: received METHOD_NEITHER ioctl \n");
//
// In this type of transfer, the I/O manager assigns the user input
// to Type3InputBuffer and the output buffer to UserBuffer of the Irp.
// The I/O manager doesn't copy or map the buffers to the kernel
// buffers.
//
status = WdfRequestRetrieveUnsafeUserInputBuffer(Request, 0, &inBuf, &inBufLen);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL,
"Error WdfRequestRetrieveUnsafeUserInputBuffer failed 0x%x", status);
goto End;
}
status = WdfRequestRetrieveUnsafeUserOutputBuffer(Request, 0, &outBuf, &outBufLen);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL,
"Error WdfRequestRetrieveUnsafeUserOutputBuffer failed 0x%x", status);
goto End;
}
//
// Allocate a context for this request so that we can store the memory
// objects created for input and output buffer.
//
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&attributes, REQUEST_CONTEXT);
status = WdfObjectAllocateContext(Request, &attributes, &reqContext);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL,
"Error WdfObjectAllocateContext failed 0x%x", status);
goto End;
}
//
// WdfRequestProbleAndLockForRead/Write function checks to see
// whether the caller in the right thread context, creates an MDL,
// probe and locks the pages, and map the MDL to system address
// space and finally creates a WDFMEMORY object representing this
// system buffer address. This memory object is associated with the
// request. So it will be freed when the request is completed. If we
// are accessing this memory buffer else where, we should store these
// pointers in the request context.
//
#pragma prefast(suppress:6387, "If inBuf==NULL at this point, then inBufLen==0")
status = WdfRequestProbeAndLockUserBufferForRead(Request,
inBuf,
inBufLen,
&reqContext->InputMemoryBuffer);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL,
"Error WdfRequestProbeAndLockUserBufferForRead failed 0x%x", status);
goto End;
}
#pragma prefast(suppress:6387, "If outBuf==NULL at this point, then outBufLen==0")
status = WdfRequestProbeAndLockUserBufferForWrite(Request,
outBuf,
outBufLen,
&reqContext->OutputMemoryBuffer);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL,
"Error WdfRequestProbeAndLockUserBufferForWrite failed 0x%x", status);
goto End;
}
//
// Finally forward it for processing by the I/O package
//
status = WdfDeviceEnqueueRequest(Device, Request);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL,
"Error WdfDeviceEnqueueRequest failed 0x%x", status);
goto End;
}
return;
End:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTL, "EvtIoPreProcess failed %x \n", status);
WdfRequestComplete(Request, status);
return;
}
static VOID
XenUsb_EvtIoInternalDeviceControl_PVURB(
WDFQUEUE queue,
WDFREQUEST request,
size_t output_buffer_length,
size_t input_buffer_length,
ULONG io_control_code)
{
NTSTATUS status;
WDFDEVICE device = WdfIoQueueGetDevice(queue);
PXENUSB_DEVICE_DATA xudd = GetXudd(device);
WDF_REQUEST_PARAMETERS wrp;
pvurb_t *pvurb;
partial_pvurb_t *partial_pvurb;
KIRQL old_irql;
UNREFERENCED_PARAMETER(input_buffer_length);
UNREFERENCED_PARAMETER(output_buffer_length);
UNREFERENCED_PARAMETER(io_control_code);
FUNCTION_ENTER();
ASSERT(io_control_code == IOCTL_INTERNAL_PVUSB_SUBMIT_URB);
WDF_REQUEST_PARAMETERS_INIT(&wrp);
WdfRequestGetParameters(request, &wrp);
pvurb = (pvurb_t *)wrp.Parameters.Others.Arg1;
ASSERT(pvurb);
RtlZeroMemory(&pvurb->rsp, sizeof(pvurb->rsp));
pvurb->status = STATUS_SUCCESS;
pvurb->request = request;
pvurb->ref = 1;
pvurb->total_length = 0;
partial_pvurb = ExAllocatePoolWithTag(NonPagedPool, sizeof(*partial_pvurb), XENUSB_POOL_TAG); /* todo - use lookaside */
if (!partial_pvurb) {
WdfRequestComplete(request, STATUS_INSUFFICIENT_RESOURCES);
FUNCTION_EXIT();
return;
}
KeAcquireSpinLock(&xudd->urb_ring_lock, &old_irql);
status = WdfRequestMarkCancelableEx(request, XenUsb_EvtRequestCancelPvUrb);
if (!NT_SUCCESS(status)) {
KeReleaseSpinLock(&xudd->urb_ring_lock, old_irql);
FUNCTION_MSG("WdfRequestMarkCancelableEx returned %08x\n", status);
WdfRequestComplete(request, STATUS_INSUFFICIENT_RESOURCES);
FUNCTION_EXIT();
return;
}
partial_pvurb->req = pvurb->req;
partial_pvurb->mdl = pvurb->mdl; /* 1:1 right now, but may need to split up large pvurb into smaller partial_pvurb's */
partial_pvurb->pvurb = pvurb;
partial_pvurb->other_partial_pvurb = NULL;
partial_pvurb->on_ring = FALSE;
if (!partial_pvurb->mdl) {
partial_pvurb->req.nr_buffer_segs = 0;
partial_pvurb->req.buffer_length = 0;
} else {
ULONG remaining = MmGetMdlByteCount(partial_pvurb->mdl);
USHORT offset = (USHORT)MmGetMdlByteOffset(partial_pvurb->mdl);
int i;
partial_pvurb->req.buffer_length = (USHORT)MmGetMdlByteCount(partial_pvurb->mdl);
partial_pvurb->req.nr_buffer_segs = (USHORT)ADDRESS_AND_SIZE_TO_SPAN_PAGES(MmGetMdlVirtualAddress(partial_pvurb->mdl), MmGetMdlByteCount(partial_pvurb->mdl));
for (i = 0; i < partial_pvurb->req.nr_buffer_segs; i++) {
partial_pvurb->req.seg[i].gref = XnGrantAccess(xudd->handle, (ULONG)MmGetMdlPfnArray(partial_pvurb->mdl)[i], FALSE, INVALID_GRANT_REF, (ULONG)'XUSB');
partial_pvurb->req.seg[i].offset = (USHORT)offset;
partial_pvurb->req.seg[i].length = (USHORT)min((USHORT)remaining, (USHORT)PAGE_SIZE - offset);
offset = 0;
remaining -= partial_pvurb->req.seg[i].length;
FUNCTION_MSG("seg = %d\n", i);
FUNCTION_MSG(" gref = %d\n", partial_pvurb->req.seg[i].gref);
FUNCTION_MSG(" offset = %d\n", partial_pvurb->req.seg[i].offset);
FUNCTION_MSG(" length = %d\n", partial_pvurb->req.seg[i].length);
}
FUNCTION_MSG("buffer_length = %d\n", partial_pvurb->req.buffer_length);
FUNCTION_MSG("nr_buffer_segs = %d\n", partial_pvurb->req.nr_buffer_segs);
}
InsertTailList(&xudd->partial_pvurb_queue, &partial_pvurb->entry);
PutRequestsOnRing(xudd);
KeReleaseSpinLock(&xudd->urb_ring_lock, old_irql);
FUNCTION_EXIT();
}
VOID
NICServiceReadIrps(
PFDO_DATA FdoData,
PMP_RFD *PacketArray,
ULONG PacketArrayCount
)
/*++
Routine Description:
Copy the data from the recv buffers to pending read IRP buffers
and complete the IRP. When used as network driver, copy operation
can be avoided by devising a private interface between us and the
NDIS-WDM filter and have the NDIS-WDM edge to indicate our buffers
directly to NDIS.
Called at DISPATCH_LEVEL. Take advantage of that fact while
acquiring spinlocks.
Arguments:
FdoData Pointer to our FdoData
Return Value:
None
--*/
{
PMP_RFD pMpRfd = NULL;
ULONG index;
NTSTATUS status;
PVOID buffer;
WDFREQUEST request;
size_t bufLength=0;
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_READ, "--> NICServiceReadIrps\n");
for(index=0; index < PacketArrayCount; index++)
{
pMpRfd = PacketArray[index];
ASSERT(pMpRfd);
status = WdfIoQueueRetrieveNextRequest( FdoData->PendingReadQueue,
&request );
if(NT_SUCCESS(status)){
WDF_REQUEST_PARAMETERS params;
ULONG length = 0;
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(
request,
¶ms
);
ASSERT(status == STATUS_SUCCESS);
bufLength = params.Parameters.Read.Length;
status = WdfRequestRetrieveOutputBuffer(request,
bufLength,
&buffer,
&bufLength);
if(NT_SUCCESS(status) ) {
length = min((ULONG)bufLength, pMpRfd->PacketSize);
RtlCopyMemory(buffer, pMpRfd->Buffer, length);
Hexdump((TRACE_LEVEL_VERBOSE, DBG_READ,
"Received Packet Data: %!HEXDUMP!\n",
log_xstr(buffer, (USHORT)length)));
FdoData->BytesReceived += length;
}
WdfRequestCompleteWithInformation(request, status, length);
}else {
ASSERTMSG("WdfIoQueueRetrieveNextRequest failed",
(status == STATUS_NO_MORE_ENTRIES ||
status == STATUS_WDF_PAUSED));
}
WdfSpinLockAcquire(FdoData->RcvLock);
ASSERT(MP_TEST_FLAG(pMpRfd, fMP_RFD_RECV_PEND));
MP_CLEAR_FLAG(pMpRfd, fMP_RFD_RECV_PEND);
if (FdoData->RfdShrinkCount < NIC_RFD_SHRINK_THRESHOLD)
{
NICReturnRFD(FdoData, pMpRfd);
}
else
{
ASSERT(FdoData->CurrNumRfd > FdoData->NumRfd);
status = PciDrvQueuePassiveLevelCallback(FdoData,
NICFreeRfdWorkItem, (PVOID)pMpRfd,
NULL);
if(NT_SUCCESS(status)){
FdoData->RfdShrinkCount = 0;
FdoData->CurrNumRfd--;
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_READ, "Shrink... CurrNumRfd = %d\n",
FdoData->CurrNumRfd);
} else {
//
// We couldn't queue a workitem to free memory, so let us
// put that back in the main pool and try again next time.
//
NICReturnRFD(FdoData, pMpRfd);
}
}
WdfSpinLockRelease(FdoData->RcvLock);
}// end of loop
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_READ, "<-- NICServiceReadIrps\n");
return;
}
VOID
MarsEvtIoRead (
WDFQUEUE Queue,
WDFREQUEST Request,
size_t Length
)
/*++
Routine Description:
This event is called when the framework receives IRP_MJ_READ requests.
Arguments:
Queue - Handle to the framework queue object that is associated with the
I/O request.
Request - Handle to a framework request object.
Lenght - Length of the data buffer associated with the request.
The default property of the queue is to not dispatch
zero lenght read & write requests to the driver and
complete is with status success. So we will never get
a zero length request.
Return Value:
None.
--*/
{
WDFDEVICE device;
PFDO_DATA fdoData;
PMDL mdlAddress;
WDF_REQUEST_PARAMETERS parameters;
NTSTATUS status;
ULONG bytesRead;
device = WdfIoQueueGetDevice(Queue);
fdoData = MarsFdoGetData(device);
status = WdfRequestRetrieveOutputWdmMdl(Request,&mdlAddress);
if (!NT_SUCCESS(status)) {
WdfRequestComplete(Request, status);
return;
}
WDF_REQUEST_PARAMETERS_INIT(¶meters);
WdfRequestGetParameters(Request, ¶meters);
status = SdioReadWriteBuffer(device,
fdoData->FunctionFocus,
mdlAddress,
(ULONG)parameters.Parameters.Read.DeviceOffset,
(ULONG)parameters.Parameters.Read.Length,
FALSE,
&bytesRead);
WdfRequestCompleteWithInformation(Request, status, bytesRead);
return;
}
static VOID
XenBus_EvtIoWrite(WDFQUEUE queue, WDFREQUEST request, size_t length)
{
NTSTATUS status;
PXENPCI_DEVICE_DATA xpdd = GetXpdd(WdfIoQueueGetDevice(queue));
WDFFILEOBJECT file_object = WdfRequestGetFileObject(request);
PXENPCI_DEVICE_INTERFACE_DATA xpdid = GetXpdid(file_object);
KIRQL old_irql;
WDFREQUEST read_request;
PUCHAR buffer;
PUCHAR src_ptr;
ULONG src_len;
PUCHAR dst_ptr;
ULONG copy_len;
struct xsd_sockmsg *rep;
xenbus_read_queue_item_t *list_entry;
watch_context_t *watch_context;
PCHAR watch_path;
PCHAR watch_token;
PCHAR msg;
FUNCTION_ENTER();
status = WdfRequestRetrieveInputBuffer(request, length, &buffer, NULL);
ASSERT(NT_SUCCESS(status));
src_ptr = (PUCHAR)buffer;
src_len = (ULONG)length;
dst_ptr = xpdid->xenbus.u.buffer + xpdid->xenbus.len;
while (src_len != 0)
{
KdPrint((__DRIVER_NAME " %d bytes of write buffer remaining\n", src_len));
/* get a complete msg header */
if (xpdid->xenbus.len < sizeof(xpdid->xenbus.u.msg))
{
copy_len = min(sizeof(xpdid->xenbus.u.msg) - xpdid->xenbus.len, src_len);
if (!copy_len)
continue;
memcpy(dst_ptr, src_ptr, copy_len);
dst_ptr += copy_len;
src_ptr += copy_len;
src_len -= copy_len;
xpdid->xenbus.len += copy_len;
}
/* exit if we can't get that */
if (xpdid->xenbus.len < sizeof(xpdid->xenbus.u.msg))
continue;
/* get a complete msg body */
if (xpdid->xenbus.len < sizeof(xpdid->xenbus.u.msg) + xpdid->xenbus.u.msg.len)
{
copy_len = min(sizeof(xpdid->xenbus.u.msg) + xpdid->xenbus.u.msg.len - xpdid->xenbus.len, src_len);
if (!copy_len)
continue;
memcpy(dst_ptr, src_ptr, copy_len);
dst_ptr += copy_len;
src_ptr += copy_len;
src_len -= copy_len;
xpdid->xenbus.len += copy_len;
}
/* exit if we can't get that */
if (xpdid->xenbus.len < sizeof(xpdid->xenbus.u.msg) + xpdid->xenbus.u.msg.len)
{
continue;
}
switch (xpdid->xenbus.u.msg.type)
{
case XS_WATCH:
case XS_UNWATCH:
KeAcquireSpinLock(&xpdid->lock, &old_irql);
watch_context = (watch_context_t *)ExAllocatePoolWithTag(NonPagedPool, sizeof(watch_context_t), XENPCI_POOL_TAG);
watch_path = (PCHAR)(xpdid->xenbus.u.buffer + sizeof(struct xsd_sockmsg));
watch_token = (PCHAR)(xpdid->xenbus.u.buffer + sizeof(struct xsd_sockmsg) + strlen(watch_path) + 1);
RtlStringCbCopyA(watch_context->path, ARRAY_SIZE(watch_context->path), watch_path);
RtlStringCbCopyA(watch_context->token, ARRAY_SIZE(watch_context->path), watch_token);
watch_context->file_object = file_object;
if (xpdid->xenbus.u.msg.type == XS_WATCH)
InsertTailList(&xpdid->xenbus.watch_list_head, &watch_context->entry);
KeReleaseSpinLock(&xpdid->lock, old_irql);
if (xpdid->xenbus.u.msg.type == XS_WATCH)
msg = XenBus_AddWatch(xpdd, XBT_NIL, watch_path, XenPci_IoWatch, watch_context);
else
msg = XenBus_RemWatch(xpdd, XBT_NIL, watch_path, XenPci_IoWatch, watch_context);
KeAcquireSpinLock(&xpdid->lock, &old_irql);
if (msg != NULL)
{
rep = ExAllocatePoolWithTag(NonPagedPool, sizeof(struct xsd_sockmsg) + strlen(msg) + 1, XENPCI_POOL_TAG);
rep->type = XS_ERROR;
rep->req_id = xpdid->xenbus.u.msg.req_id;
rep->tx_id = xpdid->xenbus.u.msg.tx_id;
rep->len = (ULONG)(strlen(msg) + 0);
RtlStringCbCopyA((PCHAR)(rep + 1), strlen(msg) + 1, msg);
if (xpdid->xenbus.u.msg.type == XS_WATCH)
RemoveEntryList(&watch_context->entry);
}
else
{
if (xpdid->xenbus.u.msg.type == XS_WATCH)
{
WdfObjectReference(file_object);
}
else
{
RemoveEntryList(&watch_context->entry);
WdfObjectDereference(file_object);
}
rep = ExAllocatePoolWithTag(NonPagedPool, sizeof(struct xsd_sockmsg), XENPCI_POOL_TAG);
rep->type = xpdid->xenbus.u.msg.type;
rep->req_id = xpdid->xenbus.u.msg.req_id;
rep->tx_id = xpdid->xenbus.u.msg.tx_id;
rep->len = 0;
}
KeReleaseSpinLock(&xpdid->lock, old_irql);
break;
default:
rep = XenBus_Raw(xpdd, &xpdid->xenbus.u.msg);
break;
}
xpdid->xenbus.len = 0;
KeAcquireSpinLock(&xpdid->lock, &old_irql);
list_entry = (xenbus_read_queue_item_t *)ExAllocatePoolWithTag(NonPagedPool, sizeof(xenbus_read_queue_item_t), XENPCI_POOL_TAG);
list_entry->data = rep;
list_entry->length = sizeof(*rep) + rep->len;
list_entry->offset = 0;
InsertTailList(&xpdid->xenbus.read_list_head, (PLIST_ENTRY)list_entry);
// Check if someone was waiting for the answer already
status = WdfIoQueueRetrieveNextRequest(xpdid->xenbus.io_queue, &read_request);
if (NT_SUCCESS(status))
{
WDF_REQUEST_PARAMETERS parameters;
KdPrint((__DRIVER_NAME " post-write: found pending read\n"));
WDF_REQUEST_PARAMETERS_INIT(¶meters);
WdfRequestGetParameters(read_request, ¶meters);
XenBus_ProcessReadRequest(xpdid->xenbus.io_queue, read_request, parameters.Parameters.Read.Length);
WdfRequestComplete(read_request, STATUS_SUCCESS);
}
else
{
KdPrint((__DRIVER_NAME " post-write: no pending read (%08x)\n", status));
}
KeReleaseSpinLock(&xpdid->lock, old_irql);
}
KdPrint((__DRIVER_NAME " completing request with length %d\n", length));
WdfRequestCompleteWithInformation(request, STATUS_SUCCESS, length);
FUNCTION_EXIT();
}
VCHIQ_PAGED_SEGMENT_BEGIN
/*++
Routine Description:
VchiqIoDeviceControl handles VCHIQ IOCTL.
Arguments:
DeviceContextPtr - Pointer to device context
WdfRequest - A handle to a framework request object.
OutputBufferLength - The length, in bytes, of the request's output buffer,
if an output buffer is available.
InputBufferLength - The length, in bytes, of the request's input buffer,
if an input buffer is available.
IoControlCode - The driver-defined or system-defined I/O control code
(IOCTL) that is associated with the request.
Return Value:
None
--*/
_Use_decl_annotations_
VOID VchiqIoDeviceControl (
WDFQUEUE Queue,
WDFREQUEST WdfRequest,
size_t OutputBufferLength,
size_t InputBufferLength,
ULONG IoControlCode
)
{
NTSTATUS status;
VCHIQ_FILE_CONTEXT* vchiqFileContextPtr;
WDFDEVICE device = WdfIoQueueGetDevice(Queue);
DEVICE_CONTEXT* deviceContextPtr = VchiqGetDeviceContext(device);
PAGED_CODE();
if (deviceContextPtr->VCConnected == FALSE) {
VCHIQ_LOG_WARNING("VCHIQ interface not ready");
status = STATUS_DEVICE_NOT_READY;
goto CompleteRequest;
}
// First process IOCTL that does not require a file context
switch (IoControlCode)
{
case IOCTL_VCHIQ_CONNECT:
{
// Connect is a simple ioctl to ensure that we have establish
// connection with VC firmware. Connection is establish by
// initiating the slots which if we reach this point has
// already been initialize. We just send a message to notify
// the firmware too
WDFFILEOBJECT wdfFileObject = WdfRequestGetFileObject(WdfRequest);
if (wdfFileObject == NULL) {
WDF_REQUEST_PARAMETERS wdfRequestParameters;
WdfRequestGetParameters(WdfRequest, &wdfRequestParameters);
VCHIQ_LOG_ERROR(
"Fail to retrieve file object. \
(WdfRequest = 0x%p, Type = 0x%lx)",
WdfRequest,
(ULONG)wdfRequestParameters.Type);
status = STATUS_INTERNAL_ERROR;
goto CompleteRequest;
}
// Create a file context here as vchiq_arm would immediately begin
// to send IOCTL to wait for completion message
vchiqFileContextPtr = VchiqGetFileContext(wdfFileObject);
if (vchiqFileContextPtr != NULL) {
VCHIQ_LOG_ERROR(
"Caller has already connected to a service");
status = STATUS_UNSUCCESSFUL;
goto CompleteRequest;
}
status = VchiqAllocateFileObjContext(
deviceContextPtr,
wdfFileObject,
&vchiqFileContextPtr);
if (!NT_SUCCESS (status)) {
VCHIQ_LOG_ERROR(
"VchiqAllocateFileObjContext failed (%!STATUS!)",
status);
goto CompleteRequest;
}
status = VchiqQueueMessageAsync(
deviceContextPtr,
vchiqFileContextPtr,
VCHIQ_MAKE_MSG(VCHIQ_MSG_CONNECT, 0, 0),
NULL,
0);
if (!NT_SUCCESS (status)) {
VCHIQ_LOG_ERROR(
"VchiqQueueMessageAsync failed (%!STATUS!)",
status);
goto CompleteRequest;
}
goto CompleteRequest;
}
case IOCTL_VCHIQ_GET_CONFIG:
{
VCHIQ_CONFIG vchiqCurrentConfig =
{
VCHIQ_MAX_MSG_SIZE,
VCHIQ_MAX_MSG_SIZE,
VCHIQ_NUM_SERVICE_BULKS,
VCHIQ_MAX_SERVICES,
VCHIQ_VERSION,
VCHIQ_VERSION_MIN
};
VCHIQ_GET_CONFIG* clientConfigPtr;
status = WdfRequestRetrieveInputBuffer(
WdfRequest,
sizeof(*clientConfigPtr),
&clientConfigPtr,
NULL);
if (!NT_SUCCESS(status)) {
VCHIQ_LOG_ERROR(
"WdfRequestRetrieveInputBuffer failed (%!STATUS!)",
status);
goto CompleteRequest;
}
// Ensure that the buffer provided is not too big.
if (clientConfigPtr->ConfigSize > sizeof(VCHIQ_CONFIG)) {
VCHIQ_LOG_WARNING("Config buffer too big");
status = STATUS_INVALID_PARAMETER;
goto CompleteRequest;
}
VCHIQ_CONFIG* configurationPtr;
size_t bufferSize;
configurationPtr = WdfMemoryGetBuffer(
clientConfigPtr->WdfMemoryConfiguration,
&bufferSize);
if ((configurationPtr == NULL) ||
(bufferSize != sizeof(*configurationPtr))) {
VCHIQ_LOG_ERROR(
"Caller provided invalid VCHIQ_CONFIG buffer 0x%08x %d",
(ULONG)configurationPtr,
bufferSize);
status = STATUS_INVALID_PARAMETER;
goto CompleteRequest;
}
RtlCopyMemory(
configurationPtr,
&vchiqCurrentConfig,
sizeof(*clientConfigPtr->PConfig));
status = STATUS_SUCCESS;
}
goto CompleteRequest;
case IOCTL_VCHIQ_LIB_VERSION:
{
ULONG* libVersion;
status = WdfRequestRetrieveInputBuffer(
WdfRequest,
sizeof(*libVersion),
&libVersion,
NULL);
if (!NT_SUCCESS(status)) {
VCHIQ_LOG_ERROR(
"WdfRequestRetrieveInputBuffer failed (%!STATUS!)",
status);
goto CompleteRequest;
}
if (*libVersion < VCHIQ_VERSION_MIN) {
VCHIQ_LOG_ERROR(
"Library version %d unsupported",
*libVersion);
status = STATUS_NOT_SUPPORTED;
goto CompleteRequest;
}
status = STATUS_SUCCESS;
}
goto CompleteRequest;
case IOCTL_VCHIQ_CREATE_SERVICE:
default:
{
WDFFILEOBJECT wdfFileObject = WdfRequestGetFileObject(WdfRequest);
if (wdfFileObject == NULL) {
WDF_REQUEST_PARAMETERS wdfRequestParameters;
WdfRequestGetParameters(WdfRequest, &wdfRequestParameters);
VCHIQ_LOG_ERROR(
"Fail to retrieve file object. \
(WdfRequest = 0x%p, Type = 0x%lx)",
WdfRequest,
(ULONG)wdfRequestParameters.Type);
status = STATUS_INTERNAL_ERROR;
goto CompleteRequest;
}
vchiqFileContextPtr = VchiqGetFileContext(wdfFileObject);
if ((vchiqFileContextPtr == NULL) &&
(IoControlCode == IOCTL_VCHIQ_CREATE_SERVICE)) {
// Functional test does not call connect prior to a create
// service call, so we allocate a file context here instead
status = VchiqAllocateFileObjContext(
deviceContextPtr,
wdfFileObject,
&vchiqFileContextPtr);
if (!NT_SUCCESS (status)) {
VCHIQ_LOG_ERROR(
"VchiqAllocateFileObjContext failed (%!STATUS!)",
status);
goto CompleteRequest;
}
} else if (vchiqFileContextPtr == NULL) {
VCHIQ_LOG_ERROR(
"Caller has not connected to a service %d",
((IoControlCode >> 2) & 0x0FFF));
status = STATUS_UNSUCCESSFUL;
goto CompleteRequest;
}
}
}
VOID
MarsEvtIoWrite (
WDFQUEUE Queue,
WDFREQUEST Request,
size_t Length
)
/*++
Routine Description:
Called by the framework as soon as it receive a write IRP.
If the device is not ready, fail the request. Otherwise
get scatter-gather list for this request and send the
packet to the hardware for DMA.
Arguments:
Queue - Handle to the framework queue object that is associated
with the I/O request.
Request - Handle to a framework request object.
Length - Length of the IO operation
The default property of the queue is to not dispatch
zero lenght read & write requests to the driver and
complete is with status success. So we will never get
a zero length request.
Return Value:
--*/
{
WDFDEVICE device;
PFDO_DATA fdoData;
PMDL mdlAddress;
WDF_REQUEST_PARAMETERS parameters;
NTSTATUS status;
ULONG bytesRead;
device = WdfIoQueueGetDevice(Queue);
fdoData = MarsFdoGetData(device);
status = WdfRequestRetrieveInputWdmMdl(Request,&mdlAddress);
if (!NT_SUCCESS(status)) {
WdfRequestComplete(Request, status);
return;
}
WDF_REQUEST_PARAMETERS_INIT(¶meters);
WdfRequestGetParameters(Request, ¶meters);
status = SdioReadWriteBuffer(device,
fdoData->FunctionFocus,
mdlAddress,
(ULONG)parameters.Parameters.Read.DeviceOffset,
(ULONG)parameters.Parameters.Read.Length,
TRUE,
&bytesRead);
WdfRequestCompleteWithInformation(Request, status, bytesRead);
return;
}
_Use_decl_annotations_
VOID
TreeSampleProcessOtherDeviceIo(
WDFDEVICE MasterDevice,
WDFREQUEST Request
)
/*++
Routine Description:
This routine is called when an unrecognized IO request is made to the
device. This can be used to process private calls directly to the
secure device.
Arguments:
MasterDevice - Supplies a handle to the master device object.
DeviceContext - Supplies a pointer to the context.
Request - Supplies a pointer to the WDF request object.
Return Value:
NTSTATUS code.
--*/
{
PWCHAR Buffer;
size_t BufferSize;
ULONG BytesWritten;
WDF_REQUEST_PARAMETERS Parameters;
NTSTATUS Status;
PAGED_CODE();
UNREFERENCED_PARAMETER(MasterDevice);
WDF_REQUEST_PARAMETERS_INIT(&Parameters);
WdfRequestGetParameters(Request, &Parameters);
BytesWritten = 0;
switch (Parameters.Parameters.DeviceIoControl.IoControlCode) {
case IOCTL_SAMPLE_DBGPRINT:
Status = WdfRequestRetrieveInputBuffer(Request,
0,
(PVOID*)&Buffer,
&BufferSize);
if (!NT_SUCCESS(Status)) {
goto TreeSampleProcessOtherDeviceIoEnd;
}
//
// Must be NULL-terminated
//
if (Buffer[BufferSize / sizeof(WCHAR) - 1] != L'\0') {
Status = STATUS_INVALID_PARAMETER;
goto TreeSampleProcessOtherDeviceIoEnd;
}
DbgPrintEx(DPFLTR_DEFAULT_ID,
DPFLTR_ERROR_LEVEL,
"[TrEEMiniportSample] %ws\n",
(PWSTR)Buffer);
break;
default:
Status = STATUS_INVALID_DEVICE_REQUEST;
}
TreeSampleProcessOtherDeviceIoEnd:
WdfRequestCompleteWithInformation(Request, Status, BytesWritten);
}
VOID
EvtIoDeviceControl(
WDFQUEUE Queue,
WDFREQUEST Request,
size_t OutputBufferLength,
size_t InputBufferLength,
ULONG IoControlCode)
{
NTSTATUS status;
BOOLEAN completeRequest = TRUE;
WDFDEVICE device = WdfIoQueueGetDevice(Queue);
PINPUT_DEVICE pContext = GetDeviceContext(device);
ULONG uReportSize;
HID_XFER_PACKET Packet;
WDF_REQUEST_PARAMETERS params;
UNREFERENCED_PARAMETER(OutputBufferLength);
UNREFERENCED_PARAMETER(InputBufferLength);
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTLS,
"--> %s, code = %d\n", __FUNCTION__, IoControlCode);
switch (IoControlCode)
{
case IOCTL_HID_GET_DEVICE_DESCRIPTOR:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTLS, "IOCTL_HID_GET_DEVICE_DESCRIPTOR\n");
//
// Return the device's HID descriptor.
//
ASSERT(pContext->HidDescriptor.bLength != 0);
status = RequestCopyFromBuffer(Request,
&pContext->HidDescriptor,
pContext->HidDescriptor.bLength);
break;
case IOCTL_HID_GET_DEVICE_ATTRIBUTES:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTLS, "IOCTL_HID_GET_DEVICE_ATTRIBUTES\n");
//
// Return the device's attributes in a HID_DEVICE_ATTRIBUTES structure.
//
status = RequestCopyFromBuffer(Request,
&pContext->HidDeviceAttributes,
sizeof(HID_DEVICE_ATTRIBUTES));
break;
case IOCTL_HID_GET_REPORT_DESCRIPTOR:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTLS, "IOCTL_HID_GET_REPORT_DESCRIPTOR\n");
//
// Return the report descriptor for the HID device.
//
status = RequestCopyFromBuffer(Request,
pContext->HidReportDescriptor,
pContext->HidDescriptor.DescriptorList[0].wReportLength);
break;
case IOCTL_HID_READ_REPORT:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTLS, "IOCTL_HID_READ_REPORT\n");
//
// Queue up a report request. We'll complete it when we actually
// receive data from the device.
//
status = WdfRequestForwardToIoQueue(
Request,
pContext->HidQueue);
if (NT_SUCCESS(status))
{
completeRequest = FALSE;
}
else
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTLS,
"WdfRequestForwardToIoQueue failed with 0x%x\n", status);
}
break;
case IOCTL_HID_WRITE_REPORT:
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTLS, "IOCTL_HID_WRITE_REPORT\n");
//
// Write a report to the device, commonly used for controlling keyboard
// LEDs. We'll complete the request after the host processes all virtio
// buffers we add to the status queue.
//
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(Request, ¶ms);
if (params.Parameters.DeviceIoControl.InputBufferLength < sizeof(HID_XFER_PACKET))
{
status = STATUS_BUFFER_TOO_SMALL;
}
else
{
RtlCopyMemory(&Packet, WdfRequestWdmGetIrp(Request)->UserBuffer,
sizeof(HID_XFER_PACKET));
WdfRequestSetInformation(Request, Packet.reportBufferLen);
status = ProcessOutputReport(pContext, Request, &Packet);
if (NT_SUCCESS(status))
{
completeRequest = FALSE;
}
}
break;
default:
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_IOCTLS,
"Unrecognized IOCTL %d\n", IoControlCode);
status = STATUS_NOT_IMPLEMENTED;
break;
}
if (completeRequest)
{
WdfRequestComplete(Request, status);
}
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_IOCTLS, "<-- %s\n", __FUNCTION__);
}
VOID
vJoy_EvtIoDeviceControlForRawPdo(
IN WDFQUEUE Queue,
IN WDFREQUEST Request,
IN size_t OutputBufferLength,
IN size_t InputBufferLength,
IN ULONG IoControlCode
)
/*++
Routine Description:
This routine is the dispatch routine for device control requests.
Arguments:
Queue - Handle to the framework queue object that is associated
with the I/O request.
Request - Handle to a framework request object.
OutputBufferLength - length of the request's output buffer,
if an output buffer is available.
InputBufferLength - length of the request's input buffer,
if an input buffer is available.
IoControlCode - the driver-defined or system-defined I/O control code
(IOCTL) that is associated with the request.
Return Value:
VOID
--*/
{
NTSTATUS status = STATUS_SUCCESS;
WDFDEVICE parent;
WDF_REQUEST_FORWARD_OPTIONS forwardOptions;
PDEVICE_EXTENSION pDevContext = NULL;
WDFMEMORY inMemory, outMemory;
PVOID buffer;
size_t bufSize;
WDFDEVICE hRawDevice = WdfIoQueueGetDevice(Queue);
PRPDO_DEVICE_DATA pdoData = PdoGetData(hRawDevice);
WDF_REQUEST_SEND_OPTIONS RequestOptions;
WDFIOTARGET TargetOnParent;
JOYSTICK_POSITION_V2 * iReport;
WDFFILEOBJECT FileObj;
USHORT id=0;
PFILEOBJECT_EXTENSION pExtension=NULL;
WDFREQUEST requestForceFeedback;
PHID_XFER_PACKET transferPacket = NULL;
PVOID ForceFeedbackBuffer = NULL;
PVOID GenBuffer = NULL;
size_t bytesReturned = 0;
WDF_REQUEST_PARAMETERS Params;
BOOLEAN FfbStat = FALSE;
ULONG bytesToCopy = 0;
BYTE Byte_tmp;
UNREFERENCED_PARAMETER(OutputBufferLength);
UNREFERENCED_PARAMETER(InputBufferLength);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "Entered vJoy_EvtIoDeviceControlForRawPdo\n");
//
// Process the ioctl and complete it when you are done.
// Since the queue is configured for serial dispatch, you will
// not receive another ioctl request until you complete this one.
//
switch (IoControlCode) {
case 1234: // TODO: Remove for production
//RequestOptions.Flags = WDF_REQUEST_SEND_OPTION_TIMEOUT;
//RequestOptions.Size = sizeof(WDF_REQUEST_SEND_OPTIONS);
//WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT(&RequestOptions, WDF_REL_TIMEOUT_IN_SEC(1));
//status = WdfIoTargetSendInternalIoctlSynchronously(pdoData->IoTargetToParent, Request, IoControlCode , NULL, NULL, &RequestOptions, NULL);
break; // Testing
case GET_DEV_STAT:
// Get information for a device by device ID
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: Case GET_DEV_STAT\n");
// Get the buffer from the request
// Get the data from the request
WDF_REQUEST_PARAMETERS_INIT(&Params);
WdfRequestGetParameters(Request, &Params);
bytesToCopy = Params.Parameters.DeviceIoControl.OutputBufferLength;
if (bytesToCopy<5)
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo[GET_DEV_STAT]: failed - bytesToCopy=%d\n", bytesToCopy);
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get the buffer
status = WdfRequestRetrieveOutputBuffer(Request, bytesToCopy, &GenBuffer, &bytesReturned);
if (bytesReturned<5)
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo[GET_DEV_STAT]: failed - bytesReturned=%d\n", bytesReturned);
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get the id number from input buffer
status = WdfRequestRetrieveInputBuffer(Request, sizeof(BYTE), &buffer, &bufSize);
if (!NT_SUCCESS(status) || (bufSize!=1))
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo[GET_DEV_STAT]: failed to retrieve input buffer\n");
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get target ID
id = *(BYTE *)buffer;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo[GET_DEV_STAT]: id=%d\n", id);
// Put data into output buffer
// Byte 1:
// Bit 0: Implemented?
// Bit 1: FFB Device Enabled?
// Bit 2: File Object associated with this device?
pDevContext = GetDeviceContext(pdoData->hParentDevice);
Byte_tmp = 0;
// Implemented mask
if (pDevContext->DeviceImplemented[id - 1])
Byte_tmp |= 1;
else
Byte_tmp &= 0xFE;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo[GET_DEV_STAT]: Dev Implemented=%x\n", pDevContext->DeviceImplemented[id - 1]);
// FFB mask
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo[GET_DEV_STAT]: Dev Enabled=%x\n", pDevContext->FfbEnable[id - 1]);
if (pDevContext->FfbEnable[id - 1])
Byte_tmp |= 2;
else
Byte_tmp &= 0xFD;
// File Object
if (pDevContext->DeviceFileObject[id - 1])
Byte_tmp |= 4;
else
Byte_tmp &= 0xFB;
((BYTE *)GenBuffer)[0] = Byte_tmp;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo[GET_DEV_STAT]: Buffer[0]=%x\n", ((BYTE *)GenBuffer)[0]);
// Byte2-5: Process ID
// Get the context
FileObj = pDevContext->DeviceFileObject[id - 1];
if (FileObj)
*(DWORD *)(&((BYTE *)GenBuffer)[1]) = GetFileObjectContext(FileObj)->CallingProcessId;
else
*(DWORD *)(&((BYTE *)GenBuffer)[1]) = 0;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo[GET_DEV_STAT]: ProcessID=%x\n", *(DWORD *)(&((BYTE *)GenBuffer)[1]));
// Complete the transaction
WdfRequestCompleteWithInformation(Request, status, bytesReturned);
return;
case GET_DRV_INFO:
// Get information for this driver
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: [GET_DRV_INFO]\n");
// Get the buffer from the request
// Get the data from the request
WDF_REQUEST_PARAMETERS_INIT(&Params);
WdfRequestGetParameters(Request, &Params);
// Number of bytes to copy must be at least one byte
bytesToCopy = Params.Parameters.DeviceIoControl.OutputBufferLength;
if (bytesToCopy <1 )
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: [GET_DRV_INFO] - bytesToCopy <1\n");
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Output buffer must be at least one byte
status = WdfRequestRetrieveOutputBuffer(Request, bytesToCopy, &GenBuffer, &bytesReturned);
if (bytesReturned<1)
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: [GET_DRV_INFO] - bytesReturned <1\n");
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
pDevContext = GetDeviceContext(pdoData->hParentDevice);
// Return the data in the output buffer
// BYTE 0 //////////////////////////////
// Bit 0 : Supports FFB?
// Bit 1 : Reserved
// Bit 2 : Mode: Multi-device
// Bit 3 : Mode: FFB
// BYTE 1 //////////////////////////////
// Bits 0-7 : Maximum number of possible devices (16 ==> 255) not regarding to mode
// BYTE 2 //////////////////////////////
// Bits 0-7 : Number of existing devices
// BYTE 3 //////////////////////////////
// Bits 0-7 : Number of devices that can still be implemented (This is the number of possible devices for the current mode minus the number of already existing devices).
//////////////////////////////////
// Byte 0
Byte_tmp = 0;
Byte_tmp |= 0x01; // FFB Supported
Byte_tmp |= 0x00; // Default Mode (TODO: Change to real mode when Implemented) Multi-Device=0x04; FFB=0x80
((BYTE *)GenBuffer)[0] = Byte_tmp;
// Byte 1
if (bytesToCopy >= 2 && bytesReturned >= 2)
{
((BYTE *)GenBuffer)[1] = MAX_N_DEVICES;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: [GET_DRV_INFO] - Data byte[1]=%02x\n", ((BYTE *)GenBuffer)[1]);
}
// Byte 2
if (bytesToCopy >= 3 && bytesReturned >= 3)
{
((BYTE *)GenBuffer)[2] = (BYTE)(pDevContext->nDevices);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: [GET_DRV_INFO] - Data byte[2]=%02x\n", ((BYTE *)GenBuffer)[2]);
}
// Byte 3 - TODO: Change according to mode
if (bytesToCopy >= 4 && bytesReturned >= 4)
{
((BYTE *)GenBuffer)[3] = MAX_N_DEVICES - (BYTE)(pDevContext->nDevices);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: [GET_DRV_INFO] - Data byte[3]=%02x\n", ((BYTE *)GenBuffer)[3]);
}
//////////////////////////////////
// Complete the transaction
WdfRequestCompleteWithInformation(Request, status, bytesReturned);
return;
case GET_DEV_INFO:
// Get information for this device (and for the driver)
// Get the buffer from the request
// Get the data from the request
WDF_REQUEST_PARAMETERS_INIT(&Params);
WdfRequestGetParameters(Request, &Params);
bytesToCopy = Params.Parameters.DeviceIoControl.OutputBufferLength;
if (bytesToCopy<6)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
status = WdfRequestRetrieveOutputBuffer(Request, bytesToCopy, &GenBuffer, &bytesReturned);
if (bytesReturned<6)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get the context, id and the status
id = GetIdFromRawPdoRequest(Request, pExtension);
// Illegal ID
if (id == 0xFFFF)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Copy the state to the buffer
pDevContext = GetDeviceContext(pdoData->hParentDevice);
((BYTE *)GenBuffer)[0] = (BYTE)id;
((BYTE *)GenBuffer)[1] = (BYTE)(pDevContext->nDevices);
((BYTE *)GenBuffer)[2] = pDevContext->DeviceImplemented ? 1:0;
((BYTE *)GenBuffer)[3] = MAX_N_DEVICES;
((BYTE *)GenBuffer)[4] = 1; // Driver does support FFB
((BYTE *)GenBuffer)[5] = pDevContext->FfbEnable[id - 1]; // Device support FFB
// Complete the transaction
WdfRequestCompleteWithInformation(Request, status, bytesReturned);
return;
case 0x910: // Backward compatibility value of LOAD_POSITIONS
case LOAD_POSITIONS:
// KdBreakPoint(); Break When loading position
status = WdfRequestRetrieveInputBuffer( Request, sizeof(JOYSTICK_POSITION), &buffer, &bufSize);
if(!NT_SUCCESS(status))
break;
// Get interface that this IRP came from,
// then get the implicated id of the top-level collection
id = GetIdFromRawPdoRequest(Request, pExtension);
// Illegal ID
if (id==0xFFFF)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get the incoming report and compare the id in the report
// to the implicated id of the top-level collection
// They should match
iReport = buffer;
if (iReport->bDevice != id)
{
WdfRequestComplete(Request, STATUS_CANCELLED);
return;
};
pDevContext = GetDeviceContext(pdoData->hParentDevice);
LoadPositions(iReport, pDevContext, bufSize);
status = vJoyCompleteReadReport(pdoData->hParentDevice, (BYTE)id);
break;
case GET_FFB_STAT:
/* Get the status of the FFB mechanism */
// Get the buffer from the request
// Get the data from the request
WDF_REQUEST_PARAMETERS_INIT(&Params);
WdfRequestGetParameters(Request, &Params);
bytesToCopy = Params.Parameters.DeviceIoControl.OutputBufferLength;
status = WdfRequestRetrieveOutputBuffer(Request, bytesToCopy, &GenBuffer, &bytesReturned);
if (!bytesReturned)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get the context, id and the status
id = GetIdFromRawPdoRequest(Request, pExtension);
// Illegal ID
if (id == 0xFFFF)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Copy the state to the buffer
pDevContext = GetDeviceContext(pdoData->hParentDevice);
((BYTE *)GenBuffer)[0] = pDevContext->FfbEnable[id-1];
// Complete the transaction
WdfRequestCompleteWithInformation(Request, status, bytesReturned);
return;
case SET_FFB_STAT:
/*Set the status of the FFB mechanism - Obsolete*/
// Get the data from the request
WDF_REQUEST_PARAMETERS_INIT(&Params);
WdfRequestGetParameters(Request, &Params);
// Get interface that this IRP came from,
// then get the implicated id of the top-level collection
// Get the context, id and the status
id = GetIdFromRawPdoRequest(Request, pExtension);
// Illegal ID
if (id == 0xFFFF)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get the data, process the data and complete the transaction
//pDevContext = GetDeviceContext(pdoData->hParentDevice); - Obsolete
//FfbActiveSet(*(BOOLEAN *)Params.Parameters.DeviceIoControl.Type3InputBuffer, id, pDevContext); - Obsolete
WdfRequestComplete(Request, status);
return;
case GET_FFB_DATA:
// Get interface that this IRP came from,
// then get the implicated id of the top-level collection
id = GetIdFromRawPdoRequest(Request, pExtension);
// If FFB is not active then just reject this request
pDevContext = GetDeviceContext(pdoData->hParentDevice);
if (id == 0xFFFF || !pDevContext->FfbEnable[id - 1])
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// If FFB is active then forward this request to the ReadQ and return
status = WdfRequestForwardToIoQueue(Request, pDevContext->FfbReadQ[id - 1]);
if(!NT_SUCCESS(status)){
TraceEvents(TRACE_LEVEL_ERROR, DBG_IOCTL,
"WdfRequestForwardToIoQueue (FfbWriteQ[%d]) failed with status: 0x%x\n", id - 1, status);
WdfRequestComplete(Request, status);
}
return;
case GET_DRV_DEV_EN:
// Get the number of devices that are currently enabled
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: Case GET_DRV_DEV_EN\n");
// Get the buffer from the request
// Get the data from the request
WDF_REQUEST_PARAMETERS_INIT(&Params);
WdfRequestGetParameters(Request, &Params);
bytesToCopy = Params.Parameters.DeviceIoControl.OutputBufferLength;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: bytesToCopy=%d\n", bytesToCopy);
if (bytesToCopy<1)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
status = WdfRequestRetrieveOutputBuffer(Request, bytesToCopy, &GenBuffer, &bytesReturned);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: bytesReturned=%d\n", bytesReturned);
if (bytesReturned<1)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
if (!pdoData) break;
pDevContext = GetDeviceContext(pdoData->hParentDevice);
if (!pDevContext) break;
// The number of the max supported devices
((BYTE *)GenBuffer)[0] = (BYTE)(pDevContext->nDevices);
// Complete the transaction
WdfRequestCompleteWithInformation(Request, status, bytesReturned);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: GenBuffer[0]=%d\n", ((BYTE *)GenBuffer)[0]);
return;
case GET_DRV_DEV_MAX:
// Get the max possible number of devices that this driver supports
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: Case GET_DRV_DEV_MAX\n");
// Get the buffer from the request
// Get the data from the request
WDF_REQUEST_PARAMETERS_INIT(&Params);
WdfRequestGetParameters(Request, &Params);
bytesToCopy = Params.Parameters.DeviceIoControl.OutputBufferLength;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: bytesToCopy=%d\n", bytesToCopy);
if (bytesToCopy<1)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
status = WdfRequestRetrieveOutputBuffer(Request, bytesToCopy, &GenBuffer, &bytesReturned);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: bytesReturned=%d\n", bytesReturned);
if (bytesReturned<1)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// The number of the max supported devices
((BYTE *)GenBuffer)[0] = MAX_N_DEVICES;
// Complete the transaction
WdfRequestCompleteWithInformation(Request, status, bytesReturned);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: GenBuffer[0]=%d\n", ((BYTE *)GenBuffer)[0]);
return;
case IS_DRV_FFB_CAP:
// Test is this version of vJoy driver supports FFB
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: Case IS_DRV_FFB_CAP\n");
// Get the data from the request (Bytes to copy)
WDF_REQUEST_PARAMETERS_INIT(&Params);
WdfRequestGetParameters(Request, &Params);
bytesToCopy = Params.Parameters.DeviceIoControl.OutputBufferLength;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: bytesToCopy=%d\n", bytesToCopy);
if (bytesToCopy<1)
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: bytesToCopy=%d (Failed)\n", bytesToCopy);
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get the buffer from the request
status = WdfRequestRetrieveOutputBuffer(Request, bytesToCopy, &GenBuffer, &bytesReturned);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: bytesReturned=%d\n", bytesReturned);
if (bytesReturned<1)
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: bytesReturned=%d (Failed)\n", bytesReturned);
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Yes, this driver supports FFB
((BYTE *)GenBuffer)[0] = 1;
// Complete the transaction
WdfRequestCompleteWithInformation(Request, status, bytesReturned);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: GenBuffer[0]=%d\n", ((BYTE *)GenBuffer)[0]);
return;
case RESET_DEV:
/* Resets device(s) to predefined values */
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: Case RESET_DEV\n");
// then get the implicated id of the top-level collection
id = GetIdFromRawPdoRequest(Request, pExtension);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "vJoy_EvtIoDeviceControlForRawPdo: ID=%d\n", id);
// Sanity check
if (id == 0xFFFF)
{
WdfRequestComplete(Request, STATUS_NO_SUCH_DEVICE);
return;
};
// Get the context of vJoy device
pDevContext = GetDeviceContext(pdoData->hParentDevice);
// Reset device(s)
status = ResetDevice(id, pDevContext);
WdfRequestCompleteWithInformation(Request, status, 0);
return;
default:
break;
}
WdfRequestComplete(Request, status);
return;
}
/*++
Routine Description:
This is the dispatch routine for write. It validates the parameters
for the write request and if all is ok then it places the request
on the work queue.
Arguments:
Queue - Handle to the framework queue object that is associated
with the I/O request.
Request - Pointer to the WDFREQUEST for the current request
Length - Length of the IO operation
The default property of the queue is to not dispatch
zero lenght read & write requests to the driver and
complete is with status success. So we will never get
a zero length request.
Return Value:
--*/
_Use_decl_annotations_
VOID
SerialEvtIoWrite(
WDFQUEUE Queue,
WDFREQUEST Request,
size_t Length
)
{
PSERIAL_DEVICE_EXTENSION extension;
NTSTATUS status;
WDFDEVICE hDevice;
WDF_REQUEST_PARAMETERS params;
PREQUEST_CONTEXT reqContext;
size_t bufLen;
UCHAR tempIER=0x00;
hDevice = WdfIoQueueGetDevice(Queue);
extension = SerialGetDeviceExtension(hDevice);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_WRITE,
"++SerialEvtIoWrite(%p, 0x%I64x)\r\n",
Request,
Length);
if (SerialCompleteIfError(extension, Request) != STATUS_SUCCESS) {
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_WRITE,
"--SerialEvtIoWrite 1 %Xh\r\n",
(ULONG)STATUS_CANCELLED);
return;
}
WDF_REQUEST_PARAMETERS_INIT(¶ms);
WdfRequestGetParameters(Request, ¶ms);
// Initialize the scratch area of the request.
reqContext = SerialGetRequestContext(Request);
reqContext->MajorFunction = params.Type;
reqContext->Length = (ULONG) Length;
status = WdfRequestRetrieveInputBuffer (Request,
Length,
&reqContext->SystemBuffer,
&bufLen);
if (!NT_SUCCESS (status)) {
SerialCompleteRequest(Request , status, 0);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_WRITE,
"--SerialEvtIoWrite 2 %Xh\r\n",
status);
return;
}
SerialStartOrQueue(extension,
Request,
extension->WriteQueue,
&extension->CurrentWriteRequest,
SerialStartWrite);
// enable mini Uart Tx interrupt
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INTERRUPT, "SerialEvtIoWrite() - enable Tx interrupt\r\n");
tempIER=READ_INTERRUPT_ENABLE(extension, extension->Controller);
WRITE_INTERRUPT_ENABLE(extension, extension->Controller, (tempIER | SERIAL_IER_THR));
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_WRITE, "--SerialEvtIoWrite()=%X\r\n", status);
return;
}