nBus-bridge/Core/Src/NbusSlave.cpp

/*
 * @file AppBridge.cpp
 * @brief Implementation of nBus Slave.
 * @date Nov 27, 2025
 * @author Juraj Dudak, Matus Necas
 */

#include <NbusSlave.h>

void NbusSlave::setCommunicator(NbusCommunicator *nbus_comm)
{
    _communicator = nbus_comm;
}

void NbusSlave::setModuleAddress(uint8_t addr)
{
    _pdu.ma = addr;
}

uint8_t NbusSlave::getModuleAddress()
{
    return _pdu.ma;
}

bool NbusSlave::isActive()
{
    return _communicator != nullptr && _pdu.ma != 0;
}

DataFrame *NbusSlave::cmdProcessAnyRequest(DataFrame *slave_frame)
{
	return _communicator->sendAndReceiveSlave(slave_frame);
}

DataFrame *NbusSlave::cmdGetData()
{
	return _communicator->sendAndReceiveSlave(_makePacket(FC_DATA));
}

DataFrame *NbusSlave::cmdGetFormat()
{
	return _communicator->sendAndReceiveSlave(_makePacket(FC_SENSOR_FORMAT));
}

uint8_t NbusSlave::cmdGetSensorCnt(bool check_hw)
{
    if (_sensor_count == 0 || check_hw == true)
    {
		DataFrame *df = _communicator->sendAndReceiveSlave(_makePacket(FC_SENSOR_CNT));
		_sensor_count = NBUS_RX_DATA0(df->GetFrame() + 1);
    }

    return _sensor_count;
}

DataFrame* NbusSlave::_makePacket(Nbus_FC_e fc)
{
	_cache_frame.Init();
	_cache_frame.AddUint8(_pdu.ma);
	_cache_frame.AddUint8(NBUS_BROADCAST_ADDRESS);
	_cache_frame.AddUint8(fc);
	_cache_frame.Commit();

	return &_cache_frame;
}