#include "Gpio.h"

#include <limits>

#include <rpc/server.h>

#include "Assembly.h"


Gpio::Gpio() noexcept :
	mode_of {},
	value_of {}
{}


void Gpio::apply(AssemblyContext ctx)
{
	ctx.bind("/set_mode", [&](const unsigned port, const short mode){ set_mode(port, mode); });
	ctx.bind("/write", [&](const unsigned port, const short value){ write(port, value); });
	ctx.bind("/read", [&](const unsigned port) -> short { return read(port); });
}


void Gpio::set_mode(const unsigned port, const short mode)
{
	if (SIZE > port)
		mode_of[port] = mode & 0x1;
}


void Gpio::write(const unsigned port, const short value)
{
	if (SIZE > port && mode_of[port] == 0x1)
		value_of[port] = value & 0x1;
}


short Gpio::read(const unsigned port) const
{
	if (SIZE <= port)
		return std::numeric_limits<short>::max();
	return value_of[port];
}