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[LIBUSB]

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- Perform intialization of root hub in a worker thread
- Should help ReactOS to continue booting when an usb controller causes hangs 

svn path=/trunk/; revision=59605
This commit is contained in:
Johannes Anderwald 2013-07-31 18:21:24 +00:00
parent 4e8dea09fb
commit d1c2395c8b
2 changed files with 53 additions and 2 deletions
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47
reactos/lib/drivers/libusb/hub_controller.cpp
View file

@ -3351,6 +3351,31 @@ USBHI_Initialize20Hub(
return STATUS_SUCCESS;
}
WORKER_THREAD_ROUTINE InitRootHub;
VOID
NTAPI
InitRootHub(IN PVOID Context)
{
PINIT_ROOT_HUB_CONTEXT WorkItem;
//
// get context
//
WorkItem = (PINIT_ROOT_HUB_CONTEXT)Context;
//
// perform callback
//
WorkItem->CallbackRoutine(WorkItem->CallbackContext);
//
// free contextg
//
ExFreePoolWithTag(Context, TAG_USBLIB);
}
NTSTATUS
USB_BUSIFFN
USBHI_RootHubInitNotification(
@ -3359,6 +3384,7 @@ USBHI_RootHubInitNotification(
PRH_INIT_CALLBACK CallbackRoutine)
{
CHubController * Controller;
PINIT_ROOT_HUB_CONTEXT WorkItem;
DPRINT("USBHI_RootHubInitNotification %p \n", CallbackContext);
@ -3374,9 +3400,26 @@ USBHI_RootHubInitNotification(
Controller->SetNotification(CallbackContext, CallbackRoutine);
//
// FIXME: determine when to perform callback
// Create and initialize work item data
//
CallbackRoutine(CallbackContext);
WorkItem = (PINIT_ROOT_HUB_CONTEXT)ExAllocatePoolWithTag(NonPagedPool, sizeof(INIT_ROOT_HUB_CONTEXT), TAG_USBLIB);
if (!WorkItem)
{
DPRINT1("Failed to allocate memory!n");
return STATUS_INSUFFICIENT_RESOURCES;
}
//
// init context
//
WorkItem->CallbackRoutine = CallbackRoutine;
WorkItem->CallbackContext = CallbackContext;
//
// Queue the work item to handle initializing the device
//
ExInitializeWorkItem(&WorkItem->WorkItem, InitRootHub, (PVOID)WorkItem);
ExQueueWorkItem(&WorkItem->WorkItem, DelayedWorkQueue);
//
// done

8
reactos/lib/drivers/libusb/libusb.h
View file

@ -52,6 +52,14 @@ typedef struct
PDISPATCHIRP Dispatcher; // dispatches the code
}COMMON_DEVICE_EXTENSION, *PCOMMON_DEVICE_EXTENSION;
typedef struct _WORK_ITEM_DATA
{
WORK_QUEUE_ITEM WorkItem; // work item
PVOID CallbackContext; // callback context
PRH_INIT_CALLBACK CallbackRoutine; // callback routine
} INIT_ROOT_HUB_CONTEXT, *PINIT_ROOT_HUB_CONTEXT;
//
// tag for allocations
//