Satoshi Togawa / Mbed 2 deprecated mpod_picasa_photoframe

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Dependencies:   BlinkLed HTTPClient EthernetInterface FatFileSystemCpp MSCFileSystem mbed-rtos mbed

BlinkLed.cpp

Committer:
togayan
Date:
2012-08-28
Revision:
5:66c3398a14c9
Parent:
0:dfd5cfea7112

File content as of revision 5:66c3398a14c9:

#include "BlinkLed.h"
    
BlinkLed::BlinkLed(PinName pin, float dutyChangeStep, const char* name) :
led(pin, name),
dutyChangeStep(dutyChangeStep),
continueBlink(false),
thread(0)
{
}

BlinkLed::~BlinkLed()
{
}

void BlinkLed::startBlink()
{
    if(continueBlink == false)
    {
        continueBlink = true;
        thread = new Thread(blink, this, osPriorityNormal, 128, NULL);
    }
}

void BlinkLed::finishBlink()
{
    if(continueBlink == true)
    {
        continueBlink = false;
        led = 0.0;
        thread->terminate();
        delete thread;
    }
}

void BlinkLed::blink(void const *argument)
{
    BlinkLed* blinkLed = (BlinkLed*)argument;
    
    bool up = false;
    float brightness = 0.0;
    while (blinkLed->continueBlink == true)
    {
        if(brightness <= 0.0)
        {
            up = true;
        }
        else if(1.0 <= brightness)
        {
            up = false;
        }
        
        float dutyChangeStep = blinkLed->dutyChangeStep;
        brightness += ((up)?(dutyChangeStep):(-dutyChangeStep));
        blinkLed->led = brightness;
        
        Thread::wait(20);
    }
}