private void TalkToDevice(Command command)
{
Logging.DebugPrint("x10!: " + command);
try
{
Serial.Flush();
//send address
var bytes = new byte[2];
bytes[0] = 0x04;
bytes[1] = (byte)(X10Helper.GetHouseCode(command.HouseCode) | (int)(X10Helper.GetDeviceCode(int.Parse(command.DeviceCode))));
//Logging.DebugPrint("Talk 2 bytes: " + bytes[0] + "/" + bytes[1]);
Serial.Write(bytes, 0, bytes.Length);
//verify checksum
int checksum = Serial.ReadByte();
//Logging.DebugPrint("Talk checksum: " + checksum);
if (checksum == X10Helper.Checksum(bytes, 2))
{
//Logging.DebugPrint("Talk checksum matched");
Serial.WriteByte(0);
}
//Logging.DebugPrint("Talk get confirmation");
//ok to send
int talkConf = Serial.ReadByte();
//Logging.DebugPrint("Talk get confirmation = " + talkConf);
if (talkConf == 0x55)
{
var actionbytes = new byte[2];
actionbytes[0] = 0x06;
actionbytes[1] = (byte)(X10Helper.GetHouseCode(command.HouseCode) | (int)(X10Helper.GetFunctionFromName(command.Action)));
//Logging.DebugPrint("Talk action 2 bytes: " + actionbytes[0] + "/" + actionbytes[1]);
Serial.Write(actionbytes, 0, actionbytes.Length);
int actionchecksum = Serial.ReadByte();
//Logging.DebugPrint("Talk action checksum: " + actionchecksum);
if (actionchecksum == X10Helper.Checksum(actionbytes, 2))
{
//Logging.DebugPrint("Talk action checksum matched");
Serial.WriteByte(0);
}
//Logging.DebugPrint("Talk action get confirmation");
int interfaceReady = Serial.ReadByte();
//Logging.DebugPrint("Talk action get confirmation = " + interfaceReady);
if (interfaceReady != 0x55)
{
if (interfaceReady == 90)
{
Logging.DebugPrint("Diverted from getting conf to processing incoming");
ProcessIncoming();
}
else if (interfaceReady == 0xa5)
{
ProcessInitRequest();
}
else
{
throw new Exception("Talk action conf error - received byte " + interfaceReady);
}
}
else
{
Queue.RemoveAt(0);
}
}
else
{
if (talkConf == 90)
{
Logging.DebugPrint("Diverted from getting talk conf to processing incoming");
ProcessIncoming();
}
else if (talkConf == 0xa5)
{
ProcessInitRequest();
}
else
{
throw new Exception("Talk conf error - received byte " + talkConf);
}
}
}
catch (Exception ex)
{
Logging.DebugPrint("Talk to device error: " + ex);
Serial.DiscardInBuffer();
if (command.Retries++ > 5)
{
Logging.DebugPrint("Max retries reached");
Queue.RemoveAt(0);
}
}
}
private static void ProcessIncoming()
{
Serial.Flush();
//send acknowledgement
Serial.WriteByte(0xc3);
//get total number of bytes in buffer
var numBytes = Serial.ReadByte();
//Logging.DebugPrint("numbytes set to " + numBytes);
//first byte is function/address mask
var functionBitFlag = Serial.ReadByte();
if (numBytes > 8) // can't have more than 8 bytes
{
Logging.DebugPrint("Err buf size: " + numBytes);
return;
}
//Logging.DebugPrint("Raw function/address val is " + functionBitFlag);
numBytes--;
var curByte = 0; //current data byte after num bytes and mask being looked at in the buffer that was sent
//gotta have some data to be able to do anything
while (numBytes > 0)
{
//determine whether it's a function or address coming next
var function = (functionBitFlag & (int)Math.Pow(2, curByte)) == (int)Math.Pow(2, curByte);
var address = !function;
//Logging.DebugPrint("Curbyte " + curByte + " function/address: " + function + "/" + address);
//get first data byte in buffer
int firstByte = Serial.ReadByte();
numBytes--;
curByte++;
if (address)
{
var housecode = (X10Helper.HouseCode)(firstByte & (128 + 64 + 32 + 16));
int devicecode = X10Helper.GetDeviceNumber((X10Helper.DeviceCode)(firstByte & (8 + 4 + 2 + 1)));
//we're not handling situations where multiple devices are acted on at the same time
LastIncomingAddress = X10Helper.GetDeviceLetter(housecode) + devicecode;
//Logging.DebugPrint("LastIncomingAddress set to " + LastIncomingAddress);
}
if (function && LastIncomingAddress != null)
{
var housecode = (X10Helper.HouseCode)(firstByte & (128 + 64 + 32 + 16));
string action = X10Helper.GetFunctionName((X10Helper.Function)(firstByte & (8 + 4 + 2 + 1)));
if (ActionEvent != null)
{
ActionEvent(LastIncomingAddress, action);
//Logging.DebugPrint("Threw action event " + LastIncomingAddress + "/" + action);
}
//we're not handling cases where more than one function is done on the same device
LastIncomingAddress = null;
}
}
}
