/*
*************************************************************************
* MiniportHalt
*************************************************************************
*
* Halts the network interface card.
*
*/
VOID MiniportHalt(IN NDIS_HANDLE MiniportAdapterContext)
{
IrDevice *thisDev = CONTEXT_TO_DEV(MiniportAdapterContext);
DBGOUT(("MiniportHalt(0x%x)", (UINT)MiniportAdapterContext));
/*
* Remove this device from our global list
*/
if (thisDev == firstIrDevice){
firstIrDevice = firstIrDevice->next;
}
else {
IrDevice *dev;
for (dev = firstIrDevice; dev && (dev->next != thisDev); dev = dev->next){ }
if (dev){
dev->next = dev->next->next;
}
else {
/*
* Don't omit this error check. I've seen NDIS call MiniportHalt with
* a bogus context when the system gets corrupted.
*/
DBGERR(("Bad context in MiniportHalt"));
return;
}
}
/*
* Now destroy the device object.
*/
DoClose(thisDev);
NdisMDeregisterIoPortRange( thisDev->ndisAdapterHandle,
thisDev->portInfo.ioBase,
8,
(PVOID)thisDev->mappedPortRange);
FreeDevice(thisDev);
}
VOID
NTAPI
MiniportHalt (
IN NDIS_HANDLE MiniportAdapterContext
)
{
PRTL_ADAPTER adapter = (PRTL_ADAPTER)MiniportAdapterContext;
ASSERT(adapter != NULL);
//
// Interrupts need to stop first
//
if (adapter->InterruptRegistered != FALSE)
{
NdisMDeregisterInterrupt(&adapter->Interrupt);
}
//
// If we have a mapped IO port range, we can talk to the NIC
//
if (adapter->IoBase != NULL)
{
if (adapter->ReceiveBuffer != NULL)
{
//
// Disassociate our shared buffer before freeing it to avoid
// NIC-induced memory corruption
//
NICRemoveReceiveBuffer(adapter);
NdisMFreeSharedMemory(adapter->MiniportAdapterHandle,
adapter->ReceiveBufferLength,
FALSE,
adapter->ReceiveBuffer,
adapter->ReceiveBufferPa);
}
if (adapter->RuntTxBuffers != NULL)
{
NdisMFreeSharedMemory(adapter->MiniportAdapterHandle,
MINIMUM_FRAME_SIZE * TX_DESC_COUNT,
FALSE,
adapter->RuntTxBuffers,
adapter->RuntTxBuffersPa);
}
//
// Unregister the IO range
//
NdisMDeregisterIoPortRange(adapter->MiniportAdapterHandle,
adapter->IoRangeStart,
adapter->IoRangeLength,
adapter->IoBase);
}
//
// Destroy the adapter context
//
NdisFreeMemory(adapter, sizeof(*adapter), 0);
}