initial commit

libraries/FastLED/src/sensors/digital_pin.h

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+#pragma once
+
+#include "fl/stdint.h"
+
+#include "fl/memory.h"
+
+
+namespace fl {
+
+FASTLED_SMART_PTR(DigitalPinImpl);
+
+
+// A simple digital pin. If we are compiling in an Arduino environment, then
+// this class will bind to that. Otherwise it will fall back to the platform api.
+// Note that this class does not support analog mode nor pullups/pulldowns.
+class DigitalPin {
+  public:
+    enum Mode {
+        kInput = 0,
+        kOutput,
+        kInputPullup,
+        // kInputPulldown,  Not implemented in Arduino.h
+    };
+
+    DigitalPin(int pin);
+    ~DigitalPin();
+    DigitalPin(const DigitalPin &other);
+    DigitalPin &operator=(const DigitalPin &other);
+
+    DigitalPin(DigitalPin &&other) = delete;
+
+    void setPinMode(Mode mode);
+    bool high() const;  // true if high, false if low
+    void write(bool is_high);
+  private:
+    DigitalPinImplPtr mImpl;
+};
+
+}  // namespace fl