kopia lustrzana https://github.com/Aircoookie/WLED
54 wiersze
1.1 KiB
C++
54 wiersze
1.1 KiB
C++
#include "wled.h"
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/*
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* Registers pins so there is no attempt for two interfaces to use the same pin
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*/
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void PinManagerClass::deallocatePin(byte gpio)
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{
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if (!isPinOk(gpio, false)) return;
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byte by = gpio >> 3;
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byte bi = gpio - 8*by;
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bitWrite(pinAlloc[by], bi, false);
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}
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bool PinManagerClass::allocatePin(byte gpio, bool output)
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{
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if (!isPinOk(gpio, output)) return false;
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if (isPinAllocated(gpio)) {
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DEBUG_PRINT(F("Attempted duplicate allocation of pin "));
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DEBUG_PRINTLN(gpio);
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return false;
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}
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byte by = gpio >> 3;
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byte bi = gpio - 8*by;
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bitWrite(pinAlloc[by], bi, true);
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return true;
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}
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bool PinManagerClass::isPinAllocated(byte gpio)
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{
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if (!isPinOk(gpio, false)) return true;
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byte by = gpio >> 3;
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byte bi = gpio - 8*by;
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return bitRead(pinAlloc[by], bi);
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}
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bool PinManagerClass::isPinOk(byte gpio, bool output)
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{
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if (gpio < 6) return true;
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if (gpio < 12) return false; //SPI flash pins
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#ifdef ESP8266
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if (gpio < 17) return true;
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#else //ESP32
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if (gpio < 34) return true;
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if (gpio < 40 && !output) return true; //34-39 input only
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#endif
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return false;
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} |