port.cpp

#include "port.h"

namespace mc68k
{
	Port::Port()
		: m_dirChangeCallback([](const Port&){})
		, m_writeTXCallback([](const Port&) {})
		, m_readRXCallback([](const Port& , uint8_t _c) { return _c; })
	{
	}

	void Port::writeTX(const uint8_t _data)
	{
		// only write pins that are enabled and that are set to output
		const auto mask = m_direction & m_enabledPins;
		m_data &= ~mask;
		m_data |= _data & mask;
		++m_writeCounter;

		m_writeTXCallback(*this);
	}

	void Port::writeRX(const uint8_t _data)
	{
		// only write pins that are enabled and that are set to input
		const auto mask = (~m_direction) & m_enabledPins;
		m_data &= ~mask;
		m_data |= _data & mask;
	}

	void Port::setDirectionChangeCallback(const std::function<void(const Port&)>& _func)
	{
		m_dirChangeCallback = _func;
		if(!m_dirChangeCallback)
			m_dirChangeCallback = [](const Port&){};
	}

	void Port::setWriteTXCallback(const std::function<void(const Port&)>& _func)
	{
		m_writeTXCallback = _func;
		if(!m_writeTXCallback)
			m_writeTXCallback = [](const Port&){};
	}

	void Port::setReadRXCallback(const std::function<uint8_t(const Port&, uint8_t)>& _func)
	{
		m_readRXCallback = _func;
		if(!m_readRXCallback)
			m_readRXCallback = [](const Port&, const uint8_t _c) { return _c; };
	}
}