48 lines
887 B
C
48 lines
887 B
C
#include <sysinit.h>
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#include "basic/basic.h"
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#define RANGE (10)
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#define HYST (4)
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uint32_t light=300*HYST;
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char _isnight=1;
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#define threshold globalconfig.backlighttrigger
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void LightCheck(void){
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int iocon;
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char iodir;
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int value;
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iocon=IOCON_PIO1_11;
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// iodir=gpioGetDir(RB_LED3);
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iodir= (GPIO_GPIO1DIR & (1 << (RB_LED3) ))?1:0;
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gpioSetDir(RB_LED3, gpioDirection_Input);
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IOCON_PIO1_11 = IOCON_PIO1_11_FUNC_AD7|IOCON_PIO1_11_ADMODE_ANALOG;
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light-=light/HYST;
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light += adcRead(7);
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gpioSetDir(RB_LED3, iodir);
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IOCON_PIO1_11=iocon;
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if(threshold==0){ // uninitialized?
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threshold=320;
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};
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if(_isnight && light/HYST>(threshold+RANGE))
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_isnight=0;
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if(!_isnight && light/HYST<threshold)
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_isnight=1;
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};
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uint32_t GetLight(void){
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return light/HYST;
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};
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char isNight(void){
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return _isnight;
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};
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