#include "Pwm.h"
#include "DevUtil.h"
#include "stringex.hpp"

#define PWMPATH "%s%d/pwm0/%s"

Pwm::Pwm(int port)
{
	path_enable = string_format(PWMPATH, path_base.c_str(), port, path_enable.c_str());
	path_duty_cycle = string_format(PWMPATH, path_base.c_str(), port, path_duty_cycle.c_str());
	path_period = string_format(PWMPATH, path_base.c_str(), port, path_period.c_str());
}

Pwm::~Pwm()
{
}

void Pwm::setFreq(int freq)
{
	int value = PWM_PERIOD / freq;
	write_dev(path_period, value);
	write_dev(path_duty_cycle, value / 2);
}

int Pwm::getFreq()
{
	return PWM_PERIOD / read_dev_i(path_period);
}

void Pwm::enable(bool bEnable)
{
	write_dev(path_enable, bEnable);
}

bool Pwm::isEnable()
{
	return (bool)read_dev_i(path_enable);
}