VOID
UsbSamp_EvtReadWriteWorkItem(
_In_ WDFWORKITEM WorkItem
)
{
PWORKITEM_CONTEXT pItemContext;
NTSTATUS status;
UsbSamp_DbgPrint(3, ("ReadWriteWorkItem called\n"));
pItemContext = GetWorkItemContext(WorkItem);
status = ResetPipe(pItemContext->Pipe);
if (!NT_SUCCESS(status)) {
UsbSamp_DbgPrint(1, ("ResetPipe failed 0x%x\n", status));
status = ResetDevice(pItemContext->Device);
if (!NT_SUCCESS(status)){
UsbSamp_DbgPrint(1, ("ResetDevice failed 0x%x\n", status));
}
}
WdfObjectDelete(WorkItem);
return;
}
static NTSTATUS UsbChief_QueuePassiveLevelCallback(IN WDFDEVICE Device,
IN WDFUSBPIPE Pipe)
{
NTSTATUS status = STATUS_SUCCESS;
PWORKITEM_CONTEXT context;
WDF_OBJECT_ATTRIBUTES attributes;
WDF_WORKITEM_CONFIG workitemConfig;
WDFWORKITEM hWorkItem;
WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
WDF_OBJECT_ATTRIBUTES_SET_CONTEXT_TYPE(&attributes, WORKITEM_CONTEXT);
attributes.ParentObject = Device;
WDF_WORKITEM_CONFIG_INIT(&workitemConfig, UsbChief_ReadWriteWorkItem);
status = WdfWorkItemCreate( &workitemConfig,
&attributes,
&hWorkItem);
if (!NT_SUCCESS(status))
return status;
context = GetWorkItemContext(hWorkItem);
context->Device = Device;
context->Pipe = Pipe;
WdfWorkItemEnqueue(hWorkItem);
return STATUS_SUCCESS;
}
NTSTATUS
QueuePassiveLevelCallback(
_In_ WDFDEVICE Device,
_In_ WDFUSBPIPE Pipe
)
/*++
Routine Description:
This routine is used to queue workitems so that the callback
functions can be executed at PASSIVE_LEVEL in the context of
a system thread.
Arguments:
Return Value:
--*/
{
NTSTATUS status = STATUS_SUCCESS;
PWORKITEM_CONTEXT context;
WDF_OBJECT_ATTRIBUTES attributes;
WDF_WORKITEM_CONFIG workitemConfig;
WDFWORKITEM hWorkItem;
WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
WDF_OBJECT_ATTRIBUTES_SET_CONTEXT_TYPE(&attributes, WORKITEM_CONTEXT);
attributes.ParentObject = Device;
WDF_WORKITEM_CONFIG_INIT(&workitemConfig, Rio500_EvtReadWriteWorkItem);
status = WdfWorkItemCreate(
&workitemConfig,
&attributes,
&hWorkItem
);
if (!NT_SUCCESS(status)) {
return status;
}
context = GetWorkItemContext(hWorkItem);
context->Device = Device;
context->Pipe = Pipe;
//
// Execute this work item.
//
WdfWorkItemEnqueue(hWorkItem);
return STATUS_SUCCESS;
}
static VOID UsbChief_ReadWriteWorkItem(IN WDFWORKITEM WorkItem)
{
PWORKITEM_CONTEXT pItemContext;
NTSTATUS status;
UsbChief_DbgPrint(DEBUG_RW, ("called\n"));
pItemContext = GetWorkItemContext(WorkItem);
status = UsbChief_ResetPipe(pItemContext->Pipe);
if (!NT_SUCCESS(status)) {
status = UsbChief_ResetDevice(pItemContext->Device);
if(!NT_SUCCESS(status))
UsbChief_DbgPrint(0, ("ResetDevice failed 0x%x\n", status));
}
WdfObjectDelete(WorkItem);
}
