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buzzer: fixed sounds not stopping and added extra functions

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Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Mihai Tudor Panu
2015-03-02 17:24:09 -08:00
parent 3810e7f2cb
commit 0aa3d59487
2 changed files with 61 additions and 13 deletions
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40
src/buzzer/buzzer.cxx
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@ -28,23 +28,47 @@
#include "buzzer.h"
using namespace upm;
using namespace std;
Buzzer::Buzzer (int pinNumber) {
m_pwm_context = mraa_pwm_init (pinNumber);
Buzzer::Buzzer(int pinNumber) {
m_pwm_context = mraa_pwm_init(pinNumber);
if(m_pwm_context == 0)
{
cerr << __FUNCTION__ << ": Error initializing PWM on pin " << pinNumber << endl;
return;
}
m_name = "Buzzer";
mraa_pwm_enable (m_pwm_context, 1);
Buzzer::setVolume(1.0);
}
int Buzzer::playSound (int note, int delay) {
mraa_pwm_enable (m_pwm_context, 1);
mraa_pwm_period_us (m_pwm_context, note);
mraa_pwm_pulsewidth_us (m_pwm_context, note / 2);
usleep (delay);
mraa_pwm_enable (m_pwm_context, 0);
void Buzzer::setVolume(float vol){
m_volume = vol;
}
float Buzzer::getVolume(){
return m_volume;
}
int Buzzer::playSound(int note, int delay) {
mraa_pwm_period_us(m_pwm_context, note);
mraa_pwm_write(m_pwm_context, m_volume * 0.5);
if(delay){
usleep(delay);
Buzzer::stopSound();
}
return note;
}
void Buzzer::stopSound(){
// Has to be checked out on a scope and make sure it's flat 0
mraa_pwm_period_us(m_pwm_context, 1);
mraa_pwm_write(m_pwm_context, 0);
}
Buzzer::~Buzzer() {
Buzzer::stopSound();
mraa_pwm_enable(m_pwm_context, 0);
mraa_pwm_close(m_pwm_context);
}