public void Clear()
{
_msgId = FlMessageId.Unknown;
//_deviceId = 0;
_bufPos = 0;
Array.Clear(_buf, 0, _buf.Length);
_fullPacketLength = 0;
Array.Clear(_fullPacket, 0, _fullPacket.Length);
_receiveState = ReceiveState.MessageId;
_arguments.Clear();
_sb.Clear();
}
private unsafe bool MakeEventObject(FlBinMsgFullStruct fullMsg, ref IFlMessage message)
{
bool ret = false;
ushort receivedCrc = 0;
int crcDataLen = _bufPos - 4;
int crcStartIndex = _bufPos - 3;
List <object> arguments = null;
FlMessageId messageId = (FlMessageId)fullMsg.header.message_id;
switch (messageId)
{
case FlMessageId.ButtonEvent:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
arguments = new List <object>()
{
fullMsg.payload[0], // Button number
fullMsg.payload[1] // Button value
};
ret = true;
}
}
break;
}
if (ret == true)
{
FlBinMessageEvent evt = new FlBinMessageEvent()
{
Arguments = arguments,
ReceiveTime = DateTime.UtcNow
};
evt.Header.device_id = fullMsg.header.device_id;
evt.Header.length = fullMsg.header.length;
evt.Header.message_id = (FlMessageId)fullMsg.header.message_id;
evt.Header.flag1 = fullMsg.header.flag1;
evt.Header.flag2 = fullMsg.header.flag2;
message = evt;
}
return(ret);
}
public FlParseState ParseCommand(byte data, out IFlMessage message)
{
FlParseState ret = FlParseState.Parsing;
message = null;
if (_fullPacketLength < FlConstant.FL_TXT_MSG_MAX_LENGTH)
{
_fullPacket[_fullPacketLength++] = data;
}
switch (_receiveState)
{
case ReceiveState.MessageId:
if (IsMsgIdChar(data) == true)
{
_buf[_bufPos++] = data;
if (_bufPos > FlConstant.TXT_MSG_ID_MAX_LEN)
{
ret = FlParseState.ParseFail;
}
}
else if (data == FlConstant.FL_TXT_MSG_ID_DEVICE_ID_DELIMITER)
{
_msgId = GetMessageId();
if (_msgId != FlMessageId.Unknown)
{
_receiveState = ReceiveState.DeviceId;
ClearReceiveBuffer();
}
else
{
ret = FlParseState.ParseFail;
}
}
else
{
ret = FlParseState.ParseFail;
}
break;
case ReceiveState.DeviceId:
if (IsDeviceIdChar(data) == true)
{
_buf[_bufPos++] = data;
if (_bufPos > FlConstant.TXT_DEVICE_ID_MAX_LEN)
{
ret = FlParseState.ParseFail;
}
}
else if (data == FlConstant.FL_TXT_MSG_ARG_DELIMITER)
{
if (ProcessCommandData() == true)
{
if (IsCommandWithArgument(_msgId) == true)
{
_receiveState = ReceiveState.Data;
ClearReceiveBuffer();
}
else
{
ret = FlParseState.ParseFail;
}
}
else
{
ret = FlParseState.ParseFail;
}
}
else if (IsTail(data) == true)
{
if (ProcessCommandData() == true)
{
_receiveState = ReceiveState.Tail;
ret = FlParseState.ParseOk;
}
else
{
ret = FlParseState.ParseFail;
}
}
else
{
ret = FlParseState.ParseFail;
}
break;
case ReceiveState.Data:
if (IsTail(data) != true)
{
if (data != FlConstant.FL_TXT_MSG_ARG_DELIMITER)
{
_buf[_bufPos++] = data;
if (_bufPos >= FlConstant.FL_TXT_MSG_MAX_LENGTH)
{
ret = FlParseState.ParseFail;
}
}
else
{
if (ProcessCommandData() == true)
{
ClearReceiveBuffer();
}
else
{
ret = FlParseState.ParseFail;
}
}
}
else
{
if (ProcessCommandData() == true)
{
_receiveState = ReceiveState.Tail;
ClearReceiveBuffer();
ret = FlParseState.ParseOk;
}
else
{
ret = FlParseState.ParseFail;
}
}
break;
default:
ret = FlParseState.ParseFail;
break;
}
if (ret != FlParseState.Parsing)
{
if (ret == FlParseState.ParseOk)
{
if (OnParseDone != null)
{
OnParseDone?.Invoke(this, null);
}
else
{
message = new FlTxtMessageCommand()
{
MessageId = _msgId,
Arguments = new List <object>()
};
while (_arguments.Count > 0)
{
message.Arguments.Add(_arguments[0]);
_arguments.RemoveAt(0);
}
}
}
Clear();
}
return(ret);
}
private unsafe bool MakeResponseObject(FlBinMsgFullStruct fullMsg, ref IFlMessage message)
{
bool ret = false;
ushort receivedCrc = 0;
int crcDataLen = _bufPos - 4;
int crcStartIndex = _bufPos - 3;
List <object> arguments = null;
FlMessageId messageId = (FlMessageId)fullMsg.header.message_id;
// Payload size = header.length - 6;
// stx header payload crc etx
// crc : header payload,
// crc data length = received bytes - stx(1) - crc(2) - etx(1)
switch (messageId)
{
case FlMessageId.ReadHardwareVersion:
case FlMessageId.ReadFirmwareVersion:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
string hwVerString = Encoding.ASCII.GetString(fullMsg.payload, fullMsg.header.length - 6);
arguments = new List <object>()
{
hwVerString
};
ret = true;
}
}
break;
case FlMessageId.ReadGpio:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
arguments = new List <object>()
{
fullMsg.payload[0], // GPIO number
fullMsg.payload[1] // GPIO value
};
ret = true;
}
}
break;
case FlMessageId.WriteGpio:
case FlMessageId.BootMode:
case FlMessageId.Reset:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
ret = true;
}
}
break;
case FlMessageId.ReadTemperature:
case FlMessageId.ReadHumidity:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
arguments = new List <object>()
{
fullMsg.payload[0], // Sensor number
BitConverter.ToDouble(_buf, _bufPos - 3 - sizeof(double)) // Sensor value
};
ret = true;
}
}
break;
case FlMessageId.ReadTempAndHum:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
arguments = new List <object>()
{
fullMsg.payload[0], // Sensor number
BitConverter.ToDouble(_buf, _bufPos - 3 - sizeof(double) * 2), // Temperature
BitConverter.ToDouble(_buf, _bufPos - 3 - sizeof(double)) // Humidity
};
ret = true;
}
}
break;
}
if (ret == true)
{
FlBinMessageResponse response = new FlBinMessageResponse()
{
Arguments = arguments,
ReceiveTime = DateTime.UtcNow
};
response.Header.device_id = fullMsg.header.device_id;
response.Header.length = fullMsg.header.length;
response.Header.message_id = (FlMessageId)fullMsg.header.message_id;
response.Header.flag1 = fullMsg.header.flag1;
response.Header.flag2 = fullMsg.header.flag2;
message = response;
}
return(ret);
}
private unsafe bool MakeCommandObject(ref IFlMessage message)
{
bool ret = false;
int crcDataLen = _bufPos - 4;
int crcStartIndex = _bufPos - 3;
List <object> arguments = null;
FlMessageId messageId = FlMessageId.Unknown;
ushort receivedCrc = 0;
FlBinMsgFullStruct fullMsg = Marshal.PtrToStructure <FlBinMsgFullStruct>(_bufPtr);
messageId = (FlMessageId)fullMsg.header.message_id;
switch (messageId)
{
case FlMessageId.ReadHardwareVersion:
case FlMessageId.ReadFirmwareVersion:
case FlMessageId.Reset:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
ret = true;
}
}
break;
case FlMessageId.ReadGpio:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
arguments = new List <object>
{
fullMsg.payload[0] // GPIO number
};
ret = true;
}
}
break;
case FlMessageId.WriteGpio:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
arguments = new List <object>
{
fullMsg.payload[0], // GPIO number
fullMsg.payload[1] // GPIO value
};
ret = true;
}
}
break;
case FlMessageId.ReadTemperature:
case FlMessageId.ReadHumidity:
case FlMessageId.ReadTempAndHum:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
arguments = new List <object>
{
fullMsg.payload[0] // Sensor number
};
ret = true;
}
}
break;
case FlMessageId.BootMode:
{
_crc16 = FlUtil.CRC16(_buf, 1, crcDataLen);
receivedCrc = BitConverter.ToUInt16(_buf, crcStartIndex);
if ((CompareCrc(_crc16, receivedCrc) == true) &&
(FlConstant.FL_BIN_MSG_ETX == _buf[_bufPos - 1]))
{
arguments = new List <object>
{
fullMsg.payload[0] // Boot mode
};
ret = true;
}
}
break;
}
if (ret == true)
{
FlBinMessageCommand command = new FlBinMessageCommand
{
Arguments = arguments
};
command.Header.device_id = fullMsg.header.device_id;
command.Header.length = fullMsg.header.length;
command.Header.message_id = (FlMessageId)fullMsg.header.message_id;
command.Header.flag1 = fullMsg.header.flag1;
command.Header.flag2 = fullMsg.header.flag2;
message = command;
}
return(ret);
}