117 lines
2.3 KiB
C++
117 lines
2.3 KiB
C++
/*
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ESPboy LED class
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for www.ESPboy.com project by RomanS
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*/
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#include "ESPboyLED.h"
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void ESPboyLED::begin(Adafruit_MCP23017 *mcpGUI){
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mcp = mcpGUI;
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pinMode(LEDPIN, OUTPUT);
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mcp->pinMode(LEDLOCK, OUTPUT);
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LEDflagOnOff = 1;
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LEDr = 0;
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LEDg = 0;
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LEDb = 0;
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ledset(LEDr, LEDg, LEDb);
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}
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void ESPboyLED::off(){
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LEDflagOnOff = 0;
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ledset(0, 0, 0);
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}
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void ESPboyLED::on(){
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LEDflagOnOff = 1;
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ledset(LEDr, LEDg, LEDb);
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}
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uint8_t ESPboyLED::getState(){
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return (LEDflagOnOff);
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}
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void ESPboyLED::setRGB (uint8_t red, uint8_t green, uint8_t blue){
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LEDr = red;
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LEDg = green;
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LEDb = blue;
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if (LEDflagOnOff) ledset(LEDr, LEDg, LEDb);
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}
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void ESPboyLED::setR (uint8_t red){
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LEDr = red;
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if (LEDflagOnOff) ledset(LEDr, LEDg, LEDb);
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}
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void ESPboyLED::setG (uint8_t green){
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LEDg = green;
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if (LEDflagOnOff) ledset(LEDr, LEDg, LEDb);
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}
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void ESPboyLED::setB (uint8_t blue){
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LEDb = blue;
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if (LEDflagOnOff) ledset(LEDr, LEDg, LEDb);
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}
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uint32_t ESPboyLED::getRGB(){
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return (((uint32_t)LEDb<<16) + ((uint32_t)LEDg<<8) + ((uint32_t)LEDr) );
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}
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uint8_t ESPboyLED::getR(){
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return (LEDr);
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}
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uint8_t ESPboyLED::getG(){
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return (LEDg);
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}
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uint8_t ESPboyLED::getB(){
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return (LEDb);
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}
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void ICACHE_RAM_ATTR ESPboyLED::ledset(uint8_t rled, uint8_t gled, uint8_t bled) {
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static uint_fast32_t i, t, c, startTime, pixel, mask, t0h, t1h, ttot;
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static uint8_t cpuFreq;
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static const uint32_t pinMask = 1<<LEDPIN;
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GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, pinMask);
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delay(1);
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mcp->digitalWrite(LEDLOCK, HIGH);
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cpuFreq = ESP.getCpuFreqMHz()/80;
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t0h = 32*cpuFreq; // 0.4us
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t1h = 64*cpuFreq; // 0.8us
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ttot = 100*cpuFreq; // 1.25us
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pixel = (gled<<16) + (rled<<8) + bled;
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mask = 0x800000;
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startTime = 0;
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os_intr_lock();
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for (i=0; i<24; i++){
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if (pixel & mask) t = t1h;
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else t = t0h;
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while (((c=ESP.getCycleCount()) - startTime) < ttot);// Wait for the previous bit to finish
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GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, pinMask); // digitalWrite HIGH
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startTime = c;
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while (((c=ESP.getCycleCount()) - startTime) < t); // Wait for high time to finish
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GPIO_REG_WRITE(GPIO_OUT_W1TC_ADDRESS, pinMask); // digitalWrite LOW
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mask>>=1;
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}
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os_intr_unlock();
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delay(1);
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GPIO_REG_WRITE(GPIO_OUT_W1TS_ADDRESS, pinMask);
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mcp->digitalWrite(LEDLOCK, LOW);
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}
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