/*++
Routine Description:
The framework calls a driver's EvtDeviceFileCreate callback
when the framework receives an IRP_MJ_CREATE request.
The system sends this request when a user application opens the
device to perform an I/O operation, such as reading or writing a file.
This callback is called synchronously, in the context of the thread
that created the IRP_MJ_CREATE request.
Arguments:
Device - Handle to a framework device object.
FileObject - Pointer to fileobject that represents the open handle.
CreateParams - copy of the create IO_STACK_LOCATION
Return Value:
NT status code
--*/
VOID PSDrv_EvtDeviceFileCreate(IN WDFDEVICE Device, IN WDFREQUEST Request, IN WDFFILEOBJECT FileObject)
{
NTSTATUS status = STATUS_UNSUCCESSFUL;
PUNICODE_STRING fileName;
PFILE_CONTEXT pFileContext;
PDEVICE_CONTEXT pDevContext;
WDFUSBPIPE pipe;
PSDrv_DbgPrint(3, ("PSDrv_EvtDeviceFileCreate - begins\n"));
PAGED_CODE();
// initialize variables
pDevContext = GetDeviceContext(Device);
pFileContext = GetFileContext(FileObject);
fileName = WdfFileObjectGetFileName(FileObject);
if (0 == fileName->Length)
{
// opening a device as opposed to pipe.
status = STATUS_SUCCESS;
}
else {
pipe = GetPipeFromName(pDevContext, fileName);
// Does the pipe exists?
if (pipe != NULL)
{
pFileContext->Pipe = pipe;
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(pipe);
// Set the default timeout
pFileContext->nTimeOut = PSUSBDRV_DEFAULT_TIMEOUT;
status = STATUS_SUCCESS;
}
else
{
status = STATUS_INVALID_DEVICE_REQUEST;
}
}
WdfRequestComplete(Request, status);
PSDrv_DbgPrint(3, ("PSDrv_EvtDeviceFileCreate - ends\n"));
return;
}
static VOID UsbChief_EvtDeviceFileCreate(IN WDFDEVICE Device, IN WDFREQUEST Request,
IN WDFFILEOBJECT FileObject)
{
NTSTATUS status = STATUS_UNSUCCESSFUL;
PUNICODE_STRING fileName;
PFILE_CONTEXT pFileContext;
PDEVICE_CONTEXT pDevContext;
WDFUSBPIPE pipe;
PAGED_CODE();
UsbChief_DbgPrint(DEBUG_RW|DEBUG_IOCTL, ("called\n"));
pDevContext = GetDeviceContext(Device);
pFileContext = GetFileContext(FileObject);
fileName = WdfFileObjectGetFileName(FileObject);
if (!fileName->Length) {
status = STATUS_SUCCESS;
} else {
pipe = UsbChief_GetPipeFromName(pDevContext, fileName);
if (pipe != NULL) {
pFileContext->Pipe = pipe;
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(pipe);
status = STATUS_SUCCESS;
} else {
status = STATUS_INVALID_DEVICE_REQUEST;
}
}
WdfRequestComplete(Request, status);
}
NTSTATUS AndroidUsbPipeFileObject::InitializePipe(
const WDF_USB_PIPE_INFORMATION* pipe_info) {
ASSERT_IRQL_LOW();
ASSERT(IsPipeAttached());
if (!IsPipeAttached())
return STATUS_INTERNAL_ERROR;
// Initialize base class
NTSTATUS status = AndroidUsbFileObject::Initialize();
ASSERT(NT_SUCCESS(status));
if (!NT_SUCCESS(status))
return status;
// Save pipe information
pipe_information_ = *pipe_info;
// We will provide size check ourselves (less surprizes always better)
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(wdf_pipe());
GoogleDbgPrint("\n===== File %p for %s pipe. max_transfer_size = %X, max_packet_size = %X",
this, is_input_pipe() ? "read" : "write",
max_transfer_size(), max_packet_size());
return STATUS_SUCCESS;
}
NTSTATUS
SelectInterfaces(
_In_ WDFDEVICE Device
)
/*++
Routine Description:
This helper routine selects the configuration, interface and
creates a context for every pipe (end point) in that interface.
Arguments:
Device - Handle to a framework device
Return Value:
NT status value
--*/
{
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS configParams;
NTSTATUS status = STATUS_SUCCESS;
PDEVICE_CONTEXT pDeviceContext;
WDFUSBPIPE pipe;
WDF_USB_PIPE_INFORMATION pipeInfo;
UCHAR index;
UCHAR numberConfiguredPipes;
WDFUSBINTERFACE usbInterface;
PAGED_CODE();
pDeviceContext = GetDeviceContext(Device);
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE( &configParams);
usbInterface =
WdfUsbTargetDeviceGetInterface(pDeviceContext->UsbDevice, 0);
if (NULL == usbInterface) {
status = STATUS_UNSUCCESSFUL;
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"WdfUsbTargetDeviceGetInterface 0 failed %!STATUS! \n",
status);
return status;
}
configParams.Types.SingleInterface.ConfiguredUsbInterface =
usbInterface;
configParams.Types.SingleInterface.NumberConfiguredPipes =
WdfUsbInterfaceGetNumConfiguredPipes(usbInterface);
pDeviceContext->UsbInterface =
configParams.Types.SingleInterface.ConfiguredUsbInterface;
numberConfiguredPipes = configParams.Types.SingleInterface.NumberConfiguredPipes;
//
// Get pipe handles
//
for(index=0; index < numberConfiguredPipes; index++) {
WDF_USB_PIPE_INFORMATION_INIT(&pipeInfo);
pipe = WdfUsbInterfaceGetConfiguredPipe(
pDeviceContext->UsbInterface,
index, //PipeIndex,
&pipeInfo
);
//
// Tell the framework that it's okay to read less than
// MaximumPacketSize
//
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(pipe);
if(WdfUsbPipeTypeInterrupt == pipeInfo.PipeType) {
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_IOCTL,
"Interrupt Pipe is 0x%p\n", pipe);
pDeviceContext->InterruptPipe = pipe;
}
if(WdfUsbPipeTypeBulk == pipeInfo.PipeType &&
WdfUsbTargetPipeIsInEndpoint(pipe)) {
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_IOCTL,
"BulkInput Pipe is 0x%p\n", pipe);
pDeviceContext->BulkReadPipe = pipe;
}
if(WdfUsbPipeTypeBulk == pipeInfo.PipeType &&
WdfUsbTargetPipeIsOutEndpoint(pipe)) {
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_IOCTL,
"BulkOutput Pipe is 0x%p\n", pipe);
pDeviceContext->BulkWritePipe = pipe;
}
}
//
// If we didn't find all the 3 pipes, fail the start.
//
if(!(pDeviceContext->BulkWritePipe
&& pDeviceContext->BulkReadPipe && pDeviceContext->InterruptPipe)) {
status = STATUS_INVALID_DEVICE_STATE;
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"Device is not configured properly %!STATUS!\n",
status);
return status;
}
return status;
}
NTSTATUS
HidFx2EvtDevicePrepareHardware(
IN WDFDEVICE Device,
IN WDFCMRESLIST ResourceList,
IN WDFCMRESLIST ResourceListTranslated
)
/*++
Routine Description:
In this callback, the driver does whatever is necessary to make the
hardware ready to use. In the case of a USB device, this involves
reading and selecting descriptors.
Arguments:
Device - handle to a device
ResourceList - A handle to a framework resource-list object that
identifies the raw hardware resourcest
ResourceListTranslated - A handle to a framework resource-list object
that identifies the translated hardware resources
Return Value:
NT status value
--*/
{
NTSTATUS status = STATUS_SUCCESS;
PDEVICE_EXTENSION devContext = NULL;
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS configParams;
WDF_OBJECT_ATTRIBUTES attributes;
PUSB_DEVICE_DESCRIPTOR usbDeviceDescriptor = NULL;
UNREFERENCED_PARAMETER(ResourceList);
UNREFERENCED_PARAMETER(ResourceListTranslated);
PAGED_CODE ();
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_INIT,
"HidFx2EvtDevicePrepareHardware Enter\n");
devContext = GetDeviceContext(Device);
//
// Create a WDFUSBDEVICE object. WdfUsbTargetDeviceCreate obtains the
// USB device descriptor and the first USB configuration descriptor from
// the device and stores them. It also creates a framework USB interface
// object for each interface in the device's first configuration.
//
// The parent of each USB device object is the driver's framework driver
// object. The driver cannot change this parent, and the ParentObject
// member or the WDF_OBJECT_ATTRIBUTES structure must be NULL.
//
// We only create device the first time PrepareHardware is called. If
// the device is restarted by pnp manager for resource rebalance, we
// will use the same device handle but then select the interfaces again
// because the USB stack could reconfigure the device on restart.
//
if (devContext->UsbDevice == NULL) {
status = WdfUsbTargetDeviceCreate(Device,
WDF_NO_OBJECT_ATTRIBUTES,
&devContext->UsbDevice);
if (!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"WdfUsbTargetDeviceCreate failed 0x%x\n", status);
return status;
}
}
//
// Select a device configuration by using a
// WDF_USB_DEVICE_SELECT_CONFIG_PARAMS structure to specify USB
// descriptors, a URB, or handles to framework USB interface objects.
//
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE( &configParams);
status = WdfUsbTargetDeviceSelectConfig(devContext->UsbDevice,
WDF_NO_OBJECT_ATTRIBUTES,
&configParams);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"WdfUsbTargetDeviceSelectConfig failed %!STATUS!\n",
status);
return status;
}
devContext->UsbInterface =
configParams.Types.SingleInterface.ConfiguredUsbInterface;
//
// Get the device descriptor and store it in device context
//
WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
attributes.ParentObject = Device;
status = WdfMemoryCreate(
&attributes,
NonPagedPool,
0,
sizeof(USB_DEVICE_DESCRIPTOR),
&devContext->DeviceDescriptor,
&usbDeviceDescriptor
);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"WdfMemoryCreate for Device Descriptor failed %!STATUS!\n",
status);
return status;
}
WdfUsbTargetDeviceGetDeviceDescriptor(
devContext->UsbDevice,
usbDeviceDescriptor
);
//
// Get the Interrupt pipe. There are other endpoints but we are only
// interested in interrupt endpoint since our HID data comes from that
// endpoint. Another way to get the interrupt endpoint is by enumerating
// through all the pipes in a loop and looking for pipe of Interrupt type.
//
devContext->InterruptPipe = WdfUsbInterfaceGetConfiguredPipe(
devContext->UsbInterface,
INTERRUPT_ENDPOINT_INDEX,
NULL);// pipeInfo
if (NULL == devContext->InterruptPipe) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"Failed to get interrupt pipe info\n");
status = STATUS_INVALID_DEVICE_STATE;
return status;
}
//
// Tell the framework that it's okay to read less than
// MaximumPacketSize
//
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(devContext->InterruptPipe);
//
//configure continuous reader
//
status = HidFx2ConfigContReaderForInterruptEndPoint(devContext);
TraceEvents(TRACE_LEVEL_VERBOSE, DBG_INIT,
"HidFx2EvtDevicePrepareHardware Exit, Status:0x%x\n", status);
return status;
}
///////////////////////////////////////////////////////////////////////////////
//
// BasicUsbEvtDevicePrepareHardware
//
// This routine is called by the framework when a device of
// the type we support is coming online. Our job will be to
// create our WDFUSBDEVICE and configure it.
//
// INPUTS:
//
// Device - One of our WDFDEVICE objects
//
// ResourceList - We're a USB device, so not used
//
// ResourceListTranslated - We're a USB device, so not
// used
//
// OUTPUTS:
//
// None.
//
// RETURNS:
//
// STATUS_SUCCESS, otherwise an error indicating why the driver could not
// load.
//
// IRQL:
//
// This routine is called at IRQL == PASSIVE_LEVEL.
//
// NOTES:
//
//
///////////////////////////////////////////////////////////////////////////////
NTSTATUS
BasicUsbEvtDevicePrepareHardware(
IN WDFDEVICE Device,
IN WDFCMRESLIST ResourceList,
IN WDFCMRESLIST ResourceListTranslated
) {
NTSTATUS status;
PBASICUSB_DEVICE_CONTEXT devContext;
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS selectConfigParams;
WDFUSBINTERFACE configuredInterface;
WDF_USB_PIPE_INFORMATION pipeInfo;
UCHAR numPipes;
UCHAR pipeIndex;
WDFUSBPIPE configuredPipe;
WDF_USB_CONTINUOUS_READER_CONFIG contReaderConfig;
UNREFERENCED_PARAMETER(ResourceList);
UNREFERENCED_PARAMETER(ResourceListTranslated);
#if DBG
DbgPrint("BasicUsbEvtDevicePrepareHardware\n");
#endif
devContext = BasicUsbGetContextFromDevice(Device);
//
// First thing to do is create our WDFUSBDEVICE. This is the
// special USB I/O target that we'll be using to configure our
// device and to send control requests.
//
// Under very rare cirumstances (i.e. resource rebalance of the
// host controller) it's possible to come through here multiple
// times. We could handle this by having an
// EvtDeviceReleaseHardware and cleaning up the USB device
// target, but we'll just leave it around and avoid creating it
// multiple times with this check. No race condition as our
// Prepare and Release can't run in parallel for the same device
//
if (devContext->BasicUsbUsbDevice == NULL) {
status = WdfUsbTargetDeviceCreate(Device,
WDF_NO_OBJECT_ATTRIBUTES,
&devContext->BasicUsbUsbDevice);
if (!NT_SUCCESS(status)) {
#if DBG
DbgPrint("WdfUsbTargetDeviceCreate failed 0x%0x\n", status);
#endif
return status;
}
}
//
// Now that our WDFUSBDEVICE is created, it's time to select
// our configuration and enable our interface.
//
//
// The OSRFX2 device only has a single interface, so we'll
// initialize our select configuration parameters structure
// using the specially provided macro
//
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE(
&selectConfigParams);
//
// And actually select our configuration.
//
status = WdfUsbTargetDeviceSelectConfig(devContext->BasicUsbUsbDevice,
WDF_NO_OBJECT_ATTRIBUTES,
&selectConfigParams);
if (!NT_SUCCESS(status)) {
#if DBG
DbgPrint("WdfUsbTargetDeviceSelectConfig failed 0x%0x\n", status);
#endif
return status;
}
//
// Our single interface has been configured. Let's grab the
// WDFUSBINTERFACE object so that we can get our pipes.
//
configuredInterface
= selectConfigParams.Types.SingleInterface.ConfiguredUsbInterface;
//
// How many pipes were configure?
//
numPipes = selectConfigParams.Types.SingleInterface.NumberConfiguredPipes;
//
// For all the pipes that were configured....
//
for(pipeIndex = 0; pipeIndex < numPipes; pipeIndex++) {
//
// We'll need to find out the type the pipe, which we'll do
// by supplying a pipe information structure when calling
// WdfUsbInterfaceGetConfiguredPipe
//
WDF_USB_PIPE_INFORMATION_INIT(&pipeInfo);
//
// Get the configured pipe.
//
configuredPipe = WdfUsbInterfaceGetConfiguredPipe(configuredInterface,
pipeIndex,
&pipeInfo);
//
// For this device, we're looking for three pipes:
//
// 1) A Bulk IN pipe
// 2) A Bulk OUT pipe
// 3) An Interrupt IN pipe
//
//
// First, let's see what type of pipe it is...
//
switch (pipeInfo.PipeType) {
case WdfUsbPipeTypeBulk: {
//
// Bulk pipe. Determine if it's an IN pipe or not.
//
if (WdfUsbTargetPipeIsInEndpoint(configuredPipe)) {
//
// Bulk IN pipe. Should only ever get one of these...
//
ASSERT(devContext->BulkInPipe == NULL);
devContext->BulkInPipe = configuredPipe;
} else {
//
// HAS to be an OUT...
//
ASSERT(WdfUsbTargetPipeIsOutEndpoint(configuredPipe));
//
// Bulk OUT pipe. Should only ever get one of these...
//
ASSERT(devContext->BulkOutPipe == NULL);
devContext->BulkOutPipe = configuredPipe;
}
break;
}
case WdfUsbPipeTypeInterrupt: {
//
// We're only expecting an IN interrupt pipe
//
ASSERT(WdfUsbTargetPipeIsInEndpoint(configuredPipe));
//
// And we're only expected one of them
//
ASSERT(devContext->InterruptInPipe == NULL);
devContext->InterruptInPipe = configuredPipe;
break;
}
default: {
//
// Don't know what it is, don't care what it is...
//
#if DBG
DbgPrint("Unexpected pipe type? 0x%x\n", pipeInfo.PipeType);
#endif
break;
}
}
}
//
// We hopefully have found everything we need...
//
if (devContext->BulkInPipe == NULL ||
devContext->BulkOutPipe == NULL ||
devContext->InterruptInPipe == NULL) {
#if DBG
DbgPrint("Didn't find expected pipes. BIN=0x%p, BOUT=0x%p, IIN=0x%p\n",
devContext->BulkInPipe,
devContext->BulkOutPipe,
devContext->InterruptInPipe);
#endif
return STATUS_DEVICE_CONFIGURATION_ERROR;
}
//
// By default, KMDF will not allow any non-MaxPacketSize
// aligned I/O to be done against IN pipes. This is to avoid
// hitting "babble" conditions, which occur when the device
// sends more data than what you've asked it for.
//
// Our device doesn't babble, so we don't need this check on
// our IN pipes.
//
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(devContext->BulkInPipe);
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(devContext->InterruptInPipe);
//
// For fun, we're going to hang a continuous reader out on the
// interrupt endpoint. By doing so, we'll get called at
// BasicUsbInterruptPipeReadComplete every time someone toggles
// the switches on the switch pack.
//
//
// Initialize the continuous reader config structure, specifying
// our callback, our context, and the size of the transfers.
//
WDF_USB_CONTINUOUS_READER_CONFIG_INIT(&contReaderConfig,
BasicUsbInterruptPipeReadComplete,
devContext,
sizeof(UCHAR));
//
// And create the continuous reader.
//
// Note that the continuous reader is not started by default, so
// we'll need to manually start it when we are called at
// EvtD0Entry.
//
status = WdfUsbTargetPipeConfigContinuousReader(devContext->InterruptInPipe,
&contReaderConfig);
if (!NT_SUCCESS(status)) {
#if DBG
DbgPrint("WdfUsbTargetPipeConfigContinuousReader failed 0x%0x\n",
status);
#endif
return status;
}
return STATUS_SUCCESS;
}
NTSTATUS
EvtDevicePrepareHardware(
IN WDFDEVICE Device,
IN WDFCMRESLIST ResourceList,
IN WDFCMRESLIST ResourceListTranslated
)
{
NTSTATUS status;
PDEVICE_CONTEXT pDeviceContext;
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS configParams;
UNREFERENCED_PARAMETER(ResourceList);
UNREFERENCED_PARAMETER(ResourceListTranslated);
pDeviceContext = GetDeviceContext(Device);
//
// Create the USB device if it is not already created.
//
if (pDeviceContext->UsbDevice == NULL) {
WDF_USB_DEVICE_CREATE_CONFIG config;
WDF_USB_DEVICE_CREATE_CONFIG_INIT(&config,
USBD_CLIENT_CONTRACT_VERSION_602);
status = WdfUsbTargetDeviceCreateWithParameters(Device,
&config,
WDF_NO_OBJECT_ATTRIBUTES,
&pDeviceContext->UsbDevice);
if (!NT_SUCCESS(status)) {
KdPrint(("WdfUsbTargetDeviceCreateWithParameters failed 0x%x\n", status));
return status;
}
}
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE(&configParams);
status = WdfUsbTargetDeviceSelectConfig(pDeviceContext->UsbDevice,
WDF_NO_OBJECT_ATTRIBUTES,
&configParams);
if(!NT_SUCCESS(status)) {
KdPrint(("WdfUsbTargetDeviceSelectConfig failed %!STATUS!\n", status));
return status;
}
pDeviceContext->UsbInterface =
configParams.Types.SingleInterface.ConfiguredUsbInterface;
pDeviceContext->BulkReadPipe = WdfUsbInterfaceGetConfiguredPipe(
pDeviceContext->UsbInterface,
BULK_IN_ENDPOINT_INDEX,
NULL);// pipeInfo
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(pDeviceContext->BulkReadPipe);
pDeviceContext->BulkWritePipe = WdfUsbInterfaceGetConfiguredPipe(
pDeviceContext->UsbInterface,
BULK_OUT_ENDPOINT_INDEX,
NULL);// pipeInfo
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(pDeviceContext->BulkWritePipe);
return status;
}
// In this callback, the driver does whatever is necessary to make the hardware ready to use.
// In the case of a USB device, this involves reading and selecting descriptors.
NTSTATUS
HidFx2EvtDevicePrepareHardware(
_In_ WDFDEVICE hDevice,
_In_ WDFCMRESLIST hResourceList,
_In_ WDFCMRESLIST hResourceListTranslated
)
{
NTSTATUS status = STATUS_SUCCESS;
PDEVICE_EXTENSION pDevContext = NULL;
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS configParams;
WDF_OBJECT_ATTRIBUTES attributes;
PUSB_DEVICE_DESCRIPTOR pUsbDeviceDescriptor = NULL;
UNREFERENCED_PARAMETER(hResourceList);
UNREFERENCED_PARAMETER(hResourceListTranslated);
PAGED_CODE ();
TraceVerbose(DBG_INIT, "(%!FUNC!) Enter\n");
pDevContext = GetDeviceContext(hDevice);
// Create a WDFUSBDEVICE object. WdfUsbTargetDeviceCreate obtains the USB device descriptor and the first USB configuration
//descriptor from the device and stores them. It also creates a framework USB interface object for each interface in the device's first configuration.
//
// The parent of each USB device object is the driver's framework driver object. The driver cannot change this parent, and the ParentObject
// member or the WDF_OBJECT_ATTRIBUTES structure must be NULL.
//
// We only create device the first time PrepareHardware is called. If the device is restarted by pnp manager for resource rebalance, we
// will use the same device handle but then select the interfaces again because the USB stack could reconfigure the device on restart.
if (pDevContext->hUsbDevice == NULL)
{
status = WdfUsbTargetDeviceCreate(hDevice, WDF_NO_OBJECT_ATTRIBUTES, &pDevContext->hUsbDevice);
if (!NT_SUCCESS(status))
{
TraceErr(DBG_PNP, "(%!FUNC!) WdfUsbTargetDeviceCreate failed %!STATUS!\n", status);
return status;
}
}
// Select a device configuration by using a WDF_USB_DEVICE_SELECT_CONFIG_PARAMS
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE(&configParams);
status = WdfUsbTargetDeviceSelectConfig(pDevContext->hUsbDevice, WDF_NO_OBJECT_ATTRIBUTES, &configParams);
if (!NT_SUCCESS(status))
{
TraceErr(DBG_PNP, "(%!FUNC!) WdfUsbTargetDeviceSelectConfig failed %!STATUS!\n", status);
return status;
}
pDevContext->hUsbInterface = configParams.Types.SingleInterface.ConfiguredUsbInterface;
// Get the device descriptor and store it in device context
WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
attributes.ParentObject = hDevice;
status = WdfMemoryCreate(&attributes,
NonPagedPool,
0,
sizeof(USB_DEVICE_DESCRIPTOR),
&pDevContext->hDeviceDescriptor,
&pUsbDeviceDescriptor);
if (!NT_SUCCESS(status))
{
TraceErr(DBG_PNP, "(%!FUNC!) WdfMemoryCreate for Device Descriptor failed %!STATUS!\n", status);
return status;
}
WdfUsbTargetDeviceGetDeviceDescriptor(pDevContext->hUsbDevice, pUsbDeviceDescriptor);
// Get the Interrupt pipe. There are other endpoints but we are only interested in interrupt endpoint since our HID data comes from this
pDevContext->hInterruptPipe = WdfUsbInterfaceGetConfiguredPipe(pDevContext->hUsbInterface, INTERRUPT_ENDPOINT_INDEX, NULL);
if (NULL == pDevContext->hInterruptPipe)
{
TraceErr(DBG_PNP, "(%!FUNC!) Failed to get interrupt pipe info\n");
status = STATUS_INVALID_DEVICE_STATE;
return status;
}
// Tell the framework that it's okay to read less than MaximumPacketSize
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(pDevContext->hInterruptPipe);
//configure continuous reader
status = HidFx2ConfigContReaderForInterruptEndPoint(pDevContext);
TraceVerbose(DBG_INIT, "(%!FUNC!) Exit, Status: %!STATUS!\n", status);
return status;
}
NTSTATUS ConfigureUsbPipes(PDEVICE_CONTEXT DeviceContext)
{
NTSTATUS status = STATUS_SUCCESS;
BYTE index = 0;
WDF_USB_PIPE_INFORMATION pipeConfig;
WDFUSBPIPE pipe = NULL;
BYTE numEndpoints;
// For debug
numEndpoints = WdfUsbInterfaceGetNumEndpoints(
DeviceContext->UsbInterface,
0
);
KdPrint((__DRIVER_NAME " Found %i EndPoints\n", numEndpoints));
// For debug
DeviceContext->UsbInterruptPipe = NULL;
DeviceContext->UsbBulkInPipe = NULL;
DeviceContext->UsbBulkOutPipe = NULL;
WDF_USB_PIPE_INFORMATION_INIT(&pipeConfig); // Init pipe config
//
// Scan all pipe from USB Interface
//
do
{
pipe = WdfUsbInterfaceGetConfiguredPipe(DeviceContext->UsbInterface,
index,
&pipeConfig);
if (NULL == pipe)
break;
// For debug
KdPrint((__DRIVER_NAME " Pipe[%i].PacketSize = %i\n", index, pipeConfig.MaximumPacketSize));
// For debug
/*None of our data transfers will have a guarantee that the requested
data size is a multiple of the packet size.*/
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(pipe);
if(WdfUsbPipeTypeInterrupt == pipeConfig.PipeType) // Interrupt pipe
{
KdPrint((__DRIVER_NAME " Found Interrupt Pipe at index %i\n", index));
DeviceContext->UsbInterruptPipe = pipe;
}
else if(WdfUsbPipeTypeBulk == pipeConfig.PipeType) // Bulk pipe
{
if(TRUE == WdfUsbTargetPipeIsInEndpoint(pipe)) // In EndPoint of Bulk
{
KdPrint((__DRIVER_NAME " Found In Endpoint Pipe at index %i\n", index));
DeviceContext->UsbBulkInPipe = pipe;
}
else if(TRUE == WdfUsbTargetPipeIsOutEndpoint(pipe))
{
KdPrint((__DRIVER_NAME " Found Out Endpoint Pipe at index %i\n", index));
DeviceContext->UsbBulkOutPipe = pipe; // Out EndPoint of Bulk
}
}
index++; // Encreate index of Pipe
} while (NULL != pipe);
// Check for all 3 pipe: interrupt, Bulk In, Bulk Out for our device
if((NULL == DeviceContext->UsbInterruptPipe) ||
(NULL == DeviceContext->UsbBulkInPipe) ||
(NULL == DeviceContext->UsbBulkOutPipe))
{
KdPrint((__DRIVER_NAME
"Not all expected USB pipes were found.\n"));
return STATUS_INVALID_PARAMETER;
}
return status;
}
NTSTATUS
SelectInterfaces(
__in WDFDEVICE Device
)
/*++
Routine Description:
This helper routine selects the configuration, interface and
creates a context for every pipe (end point) in that interface.
Arguments:
Device - Handle to a framework device
Return Value:
NT status value
--*/
{
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS configParams;
NTSTATUS status;
PDEVICE_CONTEXT pDeviceContext;
WDFUSBPIPE pipe;
WDF_USB_PIPE_INFORMATION pipeInfo;
UCHAR index;
UCHAR numberConfiguredPipes;
PAGED_CODE();
pDeviceContext = GetDeviceContext(Device);
WDF_USB_DEVICE_SELECT_CONFIG_PARAMS_INIT_SINGLE_INTERFACE( &configParams);
status = WdfUsbTargetDeviceSelectConfig(pDeviceContext->UsbDevice,
WDF_NO_OBJECT_ATTRIBUTES,
&configParams);
if(!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"WdfUsbTargetDeviceSelectConfig failed %!STATUS! \n",
status);
//
// Since the Osr USB fx2 device is capable of working at high speed, the only reason
// the device would not be working at high speed is if the port doesn't
// support it. If the port doesn't support high speed it is a 1.1 port
//
if ((pDeviceContext->UsbDeviceTraits & WDF_USB_DEVICE_TRAIT_AT_HIGH_SPEED) == 0) {
GUID activity = DeviceToActivityId(Device);
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
" On a 1.1 USB port on Windows Vista"
" this is expected as the OSR USB Fx2 board's Interrupt EndPoint descriptor"
" doesn't conform to the USB specification. Windows Vista detects this and"
" returns an error. \n"
);
EventWriteSelectConfigFailure(
&activity,
pDeviceContext->DeviceName,
pDeviceContext->Location,
status
);
}
return status;
}
pDeviceContext->UsbInterface =
configParams.Types.SingleInterface.ConfiguredUsbInterface;
numberConfiguredPipes = configParams.Types.SingleInterface.NumberConfiguredPipes;
//
// Get pipe handles
//
for(index=0; index < numberConfiguredPipes; index++) {
WDF_USB_PIPE_INFORMATION_INIT(&pipeInfo);
pipe = WdfUsbInterfaceGetConfiguredPipe(
pDeviceContext->UsbInterface,
index, //PipeIndex,
&pipeInfo
);
//
// Tell the framework that it's okay to read less than
// MaximumPacketSize
//
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(pipe);
if(WdfUsbPipeTypeInterrupt == pipeInfo.PipeType) {
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_IOCTL,
"Interrupt Pipe is 0x%p\n", pipe);
pDeviceContext->InterruptPipe = pipe;
}
if(WdfUsbPipeTypeBulk == pipeInfo.PipeType &&
WdfUsbTargetPipeIsInEndpoint(pipe)) {
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_IOCTL,
"BulkInput Pipe is 0x%p\n", pipe);
pDeviceContext->BulkReadPipe = pipe;
}
if(WdfUsbPipeTypeBulk == pipeInfo.PipeType &&
WdfUsbTargetPipeIsOutEndpoint(pipe)) {
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_IOCTL,
"BulkOutput Pipe is 0x%p\n", pipe);
pDeviceContext->BulkWritePipe = pipe;
}
}
//
// If we didn't find all the 3 pipes, fail the start.
//
if(!(pDeviceContext->BulkWritePipe
&& pDeviceContext->BulkReadPipe && pDeviceContext->InterruptPipe)) {
status = STATUS_INVALID_DEVICE_STATE;
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"Device is not configured properly %!STATUS!\n",
status);
return status;
}
return status;
}
VOID CyGetActiveAltInterfaceConfig(__in PDEVICE_CONTEXT pDevContext)
{
WDFUSBPIPE UsbPipe;
WDF_USB_PIPE_INFORMATION UsbPipeInfo;
UCHAR ucIndex;
UCHAR ucNumberConfiguredPipes;
ucNumberConfiguredPipes = WdfUsbInterfaceGetNumConfiguredPipes(pDevContext->UsbInterfaceConfig.Types.SingleInterface.ConfiguredUsbInterface);
pDevContext->ucActiveNumOfPipe = ucNumberConfiguredPipes; /* Update the number of cofigured pipe */
CyTraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP,"Number of configured pipe 0x%x\n", pDevContext->ucActiveNumOfPipe);
pDevContext->ucActiveInterruptInPipe = 0; // Initialize
for(ucIndex=0; ucIndex < ucNumberConfiguredPipes; ucIndex++)
{
WDF_USB_PIPE_INFORMATION_INIT(&UsbPipeInfo);
UsbPipe = WdfUsbInterfaceGetConfiguredPipe(
pDevContext->UsbInterfaceConfig.Types.SingleInterface.ConfiguredUsbInterface,
ucIndex,
&UsbPipeInfo
);
WdfUsbTargetPipeSetNoMaximumPacketSizeCheck(UsbPipe); /* disable check for the multiple of maximum packet size for read/write buffer */
pDevContext->WdfUsbPipeArray[ucIndex] = UsbPipe; /* Store pipe handle */
/* display information */
if(WdfUsbPipeTypeInterrupt == UsbPipeInfo.PipeType && (WdfUsbTargetPipeIsInEndpoint(UsbPipe)))
{
//Update the interrupt IN endpoint information
pDevContext->WdfUsbInterruptInPipeArray[pDevContext->ucActiveInterruptInPipe]=UsbPipe;
pDevContext->ucActiveInterruptInPipe++;
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
"Interrupt Pipe is 0x%p\n", UsbPipe);
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
"Interrupt Pipe\n");
}
if(WdfUsbPipeTypeBulk == UsbPipeInfo.PipeType) {
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
"Bulk Pipe is 0x%p\n", UsbPipe); // && WdfUsbTargetPipeIsInEndpoint(pipe
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
"Bulk Pipe\n");
}
if(WdfUsbPipeTypeIsochronous == UsbPipeInfo.PipeType &&
WdfUsbTargetPipeIsOutEndpoint(UsbPipe))
{
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
"Isochronous Pipe is 0x%p\n", UsbPipe);
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
"Isochronous Pipe\n");
}
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
" MaximumPacketSize :%x\n", UsbPipeInfo.MaximumPacketSize);
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
" EndpointAddress :%x\n", UsbPipeInfo.EndpointAddress);
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
" Interval :%x\n", UsbPipeInfo.Interval);
CyTraceEvents(TRACE_LEVEL_VERBOSE, DBG_PNP,
" SettingIndex :%x\n", UsbPipeInfo.SettingIndex);
}
}
