Files
MySensors/core/MyGatewayTransportSerial.cpp
2026-01-01 11:36:35 +01:00

84 lines
2.5 KiB
C++

/*
* The MySensors Arduino library handles the wireless radio link and protocol
* between your home built sensors/actuators and HA controller of choice.
* The sensors forms a self healing radio network with optional repeaters. Each
* repeater and gateway builds a routing tables in EEPROM which keeps track of the
* network topology allowing messages to be routed to nodes.
*
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
* Copyright (C) 2013-2026 Sensnology AB
* Full contributor list: https://github.com/mysensors/MySensors/graphs/contributors
*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
#include "MyConfig.h"
#include "MyProtocol.h"
#include "MyGatewayTransport.h"
#include "MyMessage.h"
#include "MyProtocol.h"
// global variables
extern MyMessage _msgTmp;
char _serialInputString[MY_GATEWAY_MAX_RECEIVE_LENGTH]; // A buffer for incoming commands from serial interface
uint8_t _serialInputPos;
MyMessage _serialMsg;
// cppcheck-suppress constParameter
bool gatewayTransportSend(MyMessage &message)
{
setIndication(INDICATION_GW_TX);
MY_SERIALDEVICE.print(protocolMyMessage2Serial(message));
// Serial print is always successful
return true;
}
bool gatewayTransportInit(void)
{
(void)gatewayTransportSend(buildGw(_msgTmp, I_GATEWAY_READY).set(MSG_GW_STARTUP_COMPLETE));
// Send presentation of locally attached sensors (and node if applicable)
presentNode();
return true;
}
bool gatewayTransportAvailable(void)
{
while (MY_SERIALDEVICE.available()) {
// get the new byte:
const char inChar = (char)MY_SERIALDEVICE.read();
// if the incoming character is a newline, set a flag
// so the main loop can do something about it:
if (_serialInputPos < MY_GATEWAY_MAX_RECEIVE_LENGTH - 1) {
if (inChar == '\n') {
_serialInputString[_serialInputPos] = 0;
const bool ok = protocolSerial2MyMessage(_serialMsg, _serialInputString);
if (ok) {
setIndication(INDICATION_GW_RX);
}
_serialInputPos = 0;
return ok;
} else {
// add it to the inputString:
_serialInputString[_serialInputPos] = inChar;
_serialInputPos++;
}
} else {
// Incoming message too long. Throw away
_serialInputPos = 0;
}
}
return false;
}
MyMessage & gatewayTransportReceive(void)
{
// Return the last parsed message
return _serialMsg;
}