39 lines
753 B
C++
39 lines
753 B
C++
#include "Pwm.h"
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#include "DevUtil.h"
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#define PWMPATH "%s%d/pwm0/%s"
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Pwm::Pwm(int port)
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{
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path_enable = string_format(PWMPATH, path_base.c_str(), port, path_enable.c_str());
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path_duty_cycle = string_format(PWMPATH, path_base.c_str(), port, path_duty_cycle.c_str());
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path_period = string_format(PWMPATH, path_base.c_str(), port, path_period.c_str());
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}
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Pwm::~Pwm()
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{
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}
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void Pwm::setFreq(int freq)
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{
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int value = PWM_PERIOD / freq;
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write_dev(path_period, value);
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write_dev(path_duty_cycle, value / 2);
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}
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int Pwm::getFreq()
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{
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return PWM_PERIOD/read_dev_i(path_period);
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}
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void Pwm::enable(bool bEnable)
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{
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write_dev(path_enable, bEnable);
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}
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bool Pwm::isEnable()
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{
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return (bool)read_dev_i(path_enable);
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}
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