protected override void OnHandledInternal(DataReceivedUnit ou)
{
ou.SetNextActionItems();
byte nodeId = ReceivedAchData.SrcNodeId;
byte[] command = ReceivedAchData.Command;
var scheme = (SecuritySchemes)ReceivedAchData.SecurityScheme;
bool isSuportedScheme = IsSupportedScheme(_network, command, scheme);
if (command != null && command.Length > 1 && isSuportedScheme)
{
switch (command[1])
{
case (COMMAND_CLASS_FIRMWARE_UPDATE_MD_V5.FIRMWARE_MD_GET.ID):
{
ou.SetNextActionItems(SendFwuMdReport(nodeId, scheme));
}
break;
case (COMMAND_CLASS_FIRMWARE_UPDATE_MD_V5.FIRMWARE_UPDATE_MD_REQUEST_GET.ID):
{
ou.SetNextActionItems(HandleCmdClassFirmwareUpdateMdReqGet(nodeId, command, scheme));
if (_pStatus == 0xFF)
{
_firmwareOffset = 0;
ou.AddNextActionItems(SendFwuMdGet(nodeId, START_REPORT_NUMBER, scheme));
_firmwareUpdateNvmInit.NewToken();
ou.AddNextActionItems(_firmwareUpdateNvmInit);
_firmwareUpdateNvmSetNewImageFalse.NewToken();
ou.AddNextActionItems(_firmwareUpdateNvmSetNewImageFalse);
}
}
break;
case (COMMAND_CLASS_FIRMWARE_UPDATE_MD_V5.FIRMWARE_UPDATE_MD_REPORT.ID):
{
HandleCmdClassFirmwareUpdateMdReport(ou, nodeId, command, scheme);
}
break;
default:
break;
}
}
}
/// <summary>handleCmdClassFirmwareUpdateMdReport</summary>
private void HandleCmdClassFirmwareUpdateMdReport(DataReceivedUnit ou, byte nodeId, byte[] command, SecuritySchemes scheme)
{
var fwuMdReport = (COMMAND_CLASS_FIRMWARE_UPDATE_MD_V5.FIRMWARE_UPDATE_MD_REPORT)command;
var lastReportNumber = Tools.GetBytes(_lastUsedReportNumber);
if (fwuMdReport.properties1.reportNumber1 == lastReportNumber[0] &&
fwuMdReport.reportNumber2 == lastReportNumber[1])
{
var crc16Res = Tools.CalculateCrc16Array(command.Take(command.Length - 2));
if (crc16Res.SequenceEqual(fwuMdReport.checksum))
{
var data = fwuMdReport.data;
ushort dataLen = (ushort)data.Count;
var _firmwareUpdateNvmWrite = new FirmwareUpdateNvmWriteOperation(_firmwareOffset, dataLen, data.ToArray());
ou.SetNextActionItems(_firmwareUpdateNvmWrite);
_firmwareOffset += dataLen;
if (fwuMdReport.properties1.last == 0x00)
{
ushort nextReportNumber = (ushort)(_lastUsedReportNumber + 1);
ou.AddNextActionItems(SendFwuMdGet(nodeId, nextReportNumber, scheme));
}
else
{
_firmwareUpdateNvmSetNewImageTrue.NewToken();
ou.AddNextActionItems(_firmwareUpdateNvmSetNewImageTrue);
ou.AddNextActionItems(SendFwuMdStatusReport(nodeId, 0xFF, scheme));
}
}
else //FW_EV_UPDATE_STATUS_UNABLE_TO_RECEIVE
{
"invalid MD report"._DLOG();
//retransmit request on the previous frame
ou.SetNextActionItems(SendFwuMdGet(nodeId, _lastUsedReportNumber, scheme));
}
}
}
