6a0a7b6159
This module was tested on the Grove MOSFET. Signed-off-by: Jon Trulson <jtrulson@ics.com> Signed-off-by: Zion Orent <zorent@ics.com> Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>
109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <iostream>
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#include "cjq4435.h"
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using namespace upm;
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using namespace std;
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CJQ4435::CJQ4435(int pin)
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{
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if ( !(m_pwm = mraa_pwm_init(pin)) )
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{
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cerr << __FUNCTION__ << ": mraa_pwm_init() failed" << endl;
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return;
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}
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m_enabled = false;
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}
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CJQ4435::~CJQ4435()
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{
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if (m_enabled)
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mraa_pwm_enable(m_pwm, 0);
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mraa_pwm_close(m_pwm);
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}
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void CJQ4435::setPeriodUS(int us)
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{
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if (mraa_pwm_period_us(m_pwm, us) != MRAA_SUCCESS)
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cerr << __FUNCTION__ << ": period specified is not supported"
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<< endl;
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}
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void CJQ4435::setPeriodMS(int ms)
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{
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if (mraa_pwm_period_ms(m_pwm, ms) != MRAA_SUCCESS)
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cerr << __FUNCTION__ << ": period specified is not supported"
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<< endl;
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}
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void CJQ4435::setPeriodSeconds(float seconds)
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{
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if (mraa_pwm_period(m_pwm, seconds) != MRAA_SUCCESS)
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cerr << __FUNCTION__ << ": period specified is not supported"
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<< endl;
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}
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void CJQ4435::enable(bool enable)
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{
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m_enabled = enable;
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mraa_pwm_enable(m_pwm, ((enable) ? 1 : 0));
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}
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void CJQ4435::setDutyCycle(float dutyCycle)
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{
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if (dutyCycle < 0.0)
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dutyCycle = 0.0;
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if (dutyCycle > 1.0)
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dutyCycle = 1.0;
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mraa_pwm_write(m_pwm, dutyCycle);
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}
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void CJQ4435::on()
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{
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// set a 1 second period, with 100% duty cycle
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enable(false);
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setPeriodUS(1000);
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setDutyCycle(1.0);
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enable(true);
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}
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void CJQ4435::off()
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{
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// set a 1 second period, with 0% duty cycle
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enable(false);
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setPeriodUS(1000);
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setDutyCycle(0.0);
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enable(true);
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}
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