/**
* Performs an energy scan and returns the quietest channel
*
* @param channelMask the channel mask on which to perform the scan.
* @param scanDuration Sets the exponent of the number of scan periods, where a scan period is 960 symbols. The scan
* will occur for ((2^duration) + 1) scan periods.
* @return a List of {@link EzspNetworkFoundHandler} on success. If there was an error during the scan, null is
* returned.
*/
public List <EzspEnergyScanResultHandler> DoEnergyScan(int channelMask, int scanDuration)
{
EzspStartScanRequest energyScan = new EzspStartScanRequest();
energyScan.SetChannelMask(channelMask);
energyScan.SetDuration(scanDuration);
energyScan.SetScanType(EzspNetworkScanType.EZSP_ENERGY_SCAN);
HashSet <Type> relatedResponses = new HashSet <Type>()
{
typeof(EzspStartScanResponse), typeof(EzspEnergyScanResultHandler)
};
IEzspTransaction transaction = _protocolHandler.SendEzspTransaction(new EzspMultiResponseTransaction(energyScan, typeof(EzspScanCompleteHandler), relatedResponses));
EzspScanCompleteHandler scanCompleteResponse = (EzspScanCompleteHandler)transaction.GetResponse();
Log.Debug(scanCompleteResponse.ToString());
List <EzspEnergyScanResultHandler> channels = new List <EzspEnergyScanResultHandler>();
foreach (EzspFrameResponse network in transaction.GetResponses())
{
if (network is EzspEnergyScanResultHandler)
{
channels.Add((EzspEnergyScanResultHandler)network);
}
}
_lastStatus = scanCompleteResponse.GetStatus();
return(channels);
}
/**
* Perform an active scan. The radio will try to send beacon request on each channel.
* <p>
* During the scan, the CSMA/CA mechanism will be used to detect whether the radio channel is free at that moment.
* If some of the radio channels in the environment are too busy for the device to perform the scan, the NCP returns
* EMBER_MAC_COMMAND_TRANSMIT_FAILURE. A clearer RF environment might mitigate this issue.
*
* @param channelMask the channel mask on which to perform the scan.
* @param scanDuration Sets the exponent of the number of scan periods, where a scan period is 960 symbols. The scan
* will occur for ((2^duration) + 1) scan periods.
* @return a List of {@link EzspNetworkFoundHandler} on success. If there was an error during the scan, null is
* returned.
*/
public ICollection <EzspNetworkFoundHandler> DoActiveScan(int channelMask, int scanDuration)
{
EzspStartScanRequest activeScan = new EzspStartScanRequest();
activeScan.SetChannelMask(channelMask);
activeScan.SetDuration(scanDuration);
activeScan.SetScanType(EzspNetworkScanType.EZSP_ACTIVE_SCAN);
HashSet <Type> relatedResponses = new HashSet <Type>()
{
typeof(EzspStartScanResponse), typeof(EzspNetworkFoundHandler)
};
IEzspTransaction transaction = _protocolHandler.SendEzspTransaction(new EzspMultiResponseTransaction(activeScan, typeof(EzspScanCompleteHandler), relatedResponses));
EzspScanCompleteHandler activeScanCompleteResponse = (EzspScanCompleteHandler)transaction.GetResponse();
Log.Debug(activeScanCompleteResponse.ToString());
if (activeScanCompleteResponse.GetStatus() != EmberStatus.EMBER_SUCCESS)
{
_lastStatus = activeScanCompleteResponse.GetStatus();
Log.Debug("Error during active scan: {}", activeScanCompleteResponse);
return(null);
}
Dictionary <ExtendedPanId, EzspNetworkFoundHandler> networksFound = new Dictionary <ExtendedPanId, EzspNetworkFoundHandler>();
foreach (EzspFrameResponse response in transaction.GetResponses())
{
if (response is EzspNetworkFoundHandler)
{
EzspNetworkFoundHandler network = (EzspNetworkFoundHandler)response;
networksFound[network.GetNetworkFound().GetExtendedPanId()] = network;
}
}
return(networksFound.Values);
}