NTSTATUS
VIOSerialEvtDeviceD0Exit(
IN WDFDEVICE Device,
IN WDF_POWER_DEVICE_STATE TargetState
)
{
PPORTS_DEVICE pContext = GetPortsDevice(Device);
PPORT_BUFFER buf;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP,"--> %s TargetState: %d\n",
__FUNCTION__, TargetState);
PAGED_CODE();
while (buf = (PPORT_BUFFER)virtqueue_detach_unused_buf(pContext->c_ivq))
{
VIOSerialFreeBuffer(buf);
}
VIOSerialShutDownAllQueues(Device);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP, "<-- %s\n", __FUNCTION__);
return STATUS_SUCCESS;
}
NTSTATUS
VIOSerialPortEvtDeviceD0Exit(
IN WDFDEVICE Device,
IN WDF_POWER_DEVICE_STATE TargetState
)
{
PVIOSERIAL_PORT Port = RawPdoSerialPortGetData(Device)->port;
PPORT_BUFFER buf;
PSINGLE_LIST_ENTRY iter;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "--> %s TargetState: %d\n",
__FUNCTION__, TargetState);
Port->Removed = TRUE;
VIOSerialDisableInterruptQueue(GetInQueue(Port));
WdfSpinLockAcquire(Port->InBufLock);
VIOSerialDiscardPortDataLocked(Port);
Port->InBuf = NULL;
WdfSpinLockRelease(Port->InBufLock);
WdfSpinLockAcquire(Port->OutVqLock);
VIOSerialReclaimConsumedBuffers(Port);
WdfSpinLockRelease(Port->OutVqLock);
while (buf = (PPORT_BUFFER)virtqueue_detach_unused_buf(GetInQueue(Port)))
{
VIOSerialFreeBuffer(buf);
}
iter = PopEntryList(&Port->WriteBuffersList);
while (iter != NULL)
{
PWRITE_BUFFER_ENTRY entry = CONTAINING_RECORD(iter,
WRITE_BUFFER_ENTRY, ListEntry);
ExFreePoolWithTag(entry->Buffer, VIOSERIAL_DRIVER_MEMORY_TAG);
ExFreePoolWithTag(entry, VIOSERIAL_DRIVER_MEMORY_TAG);
iter = PopEntryList(&Port->WriteBuffersList);
};
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "<-- %s\n", __FUNCTION__);
return STATUS_SUCCESS;
}
/* Disable the CAIF interface and free the memory-pool */
static int cfv_netdev_close(struct net_device *netdev)
{
struct cfv_info *cfv = netdev_priv(netdev);
unsigned long flags;
struct buf_info *buf_info;
/* Disable interrupts, queues and NAPI polling */
netif_carrier_off(netdev);
virtqueue_disable_cb(cfv->vq_tx);
vringh_notify_disable_kern(cfv->vr_rx);
napi_disable(&cfv->napi);
/* Release any TX buffers on both used and avilable rings */
cfv_release_used_buf(cfv->vq_tx);
spin_lock_irqsave(&cfv->tx_lock, flags);
while ((buf_info = virtqueue_detach_unused_buf(cfv->vq_tx)))
free_buf_info(cfv, buf_info);
spin_unlock_irqrestore(&cfv->tx_lock, flags);
/* Release all dma allocated memory and destroy the pool */
cfv_destroy_genpool(cfv);
return 0;
}
