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[USBEHCI_NEW]

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- Create member for storing the request object
- Add interface function which is invoked when the queue head should be freed
- Add support functions which deal with completed queue heads

svn path=/branches/usb-bringup/; revision=51440
This commit is contained in:
Johannes Anderwald 2011-04-23 19:36:23 +00:00
parent 4dff45da57
commit 982eb59ba0
4 changed files with 227 additions and 0 deletions
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58
drivers/usb/usbehci_new/usb_request.cpp
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@ -46,6 +46,7 @@ public:
virtual VOID GetResultStatus(OUT OPTIONAL NTSTATUS *NtStatusCode, OUT OPTIONAL PULONG UrbStatusCode);
virtual BOOLEAN IsRequestInitialized();
virtual BOOLEAN ShouldReleaseRequestAfterCompletion();
virtual VOID FreeQueueHead(struct _QUEUE_HEAD * QueueHead);
// local functions
ULONG InternalGetTransferType();
@ -416,6 +417,11 @@ CUSBRequest::GetQueueHead(
// store queue head
//
m_QueueHead = *OutHead;
//
// store request object
//
(*OutHead)->Request = PVOID(this);
}
//
@ -936,6 +942,58 @@ CUSBRequest::ShouldReleaseRequestAfterCompletion()
}
}
//-----------------------------------------------------------------------------------------
VOID
CUSBRequest::FreeQueueHead(
IN struct _QUEUE_HEAD * QueueHead)
{
//
// FIXME: support chained queue heads
//
PC_ASSERT(QueueHead == m_QueueHead);
//
// release queue head
//
m_DmaManager->Release(QueueHead, sizeof(QUEUE_HEAD));
//
// nullify pointer
//
m_QueueHead = 0;
//
// release transfer descriptors
//
if (m_TransferDescriptors[0])
{
//
// release transfer descriptors
//
m_DmaManager->Release(m_TransferDescriptors[0], sizeof(QUEUE_TRANSFER_DESCRIPTOR));
m_TransferDescriptors[0] = 0;
}
if (m_TransferDescriptors[1])
{
//
// release transfer descriptors
//
m_DmaManager->Release(m_TransferDescriptors[1], sizeof(QUEUE_TRANSFER_DESCRIPTOR));
m_TransferDescriptors[1] = 0;
}
if (m_TransferDescriptors[2])
{
//
// release transfer descriptors
//
m_DmaManager->Release(m_TransferDescriptors[2], sizeof(QUEUE_TRANSFER_DESCRIPTOR));
m_TransferDescriptors[2] = 0;
}
}
NTSTATUS
InternalCreateUSBRequest(
PUSBREQUEST *OutRequest)