InfiniTime/src/drivers/Cst816s.h

#pragma once

#include "TwiMaster.h"

namespace Pinetime {
  namespace Drivers {
    class Cst816S {
    public:
      enum class Gestures : uint8_t {
        None = 0x00,
        SlideDown = 0x01,
        SlideUp = 0x02,
        SlideLeft = 0x03,
        SlideRight = 0x04,
        SingleTap = 0x05,
        DoubleTap = 0x0B,
        LongPress = 0x0C
      };
      struct TouchInfos {
        uint16_t x = 0;
        uint16_t y = 0;
        uint8_t action = 0;
        uint8_t finger = 0;
        uint8_t pressure = 0;
        uint8_t area = 0;
        Gestures gesture = Gestures::None;
        bool isTouch = false;
      };

      Cst816S(TwiMaster& twiMaster, uint8_t twiAddress);
      Cst816S(const Cst816S&) = delete;
      Cst816S& operator=(const Cst816S&) = delete;
      Cst816S(Cst816S&&) = delete;
      Cst816S& operator=(Cst816S&&) = delete;

      void Init();
      TouchInfos GetTouchInfo();
      void Sleep();
      void Wakeup();

    private:
      static constexpr uint8_t pinIrq = 28;
      static constexpr uint8_t pinReset = 10;
      static constexpr uint8_t lastTouchId = 0x0f;
      static constexpr uint8_t touchPointNumIndex = 2;
      static constexpr uint8_t touchMiscIndex = 8;
      static constexpr uint8_t touchXYIndex = 7;
      static constexpr uint8_t touchEventIndex = 3;
      static constexpr uint8_t touchXHighIndex = 3;
      static constexpr uint8_t touchXLowIndex = 4;
      static constexpr uint8_t touchYHighIndex = 5;
      static constexpr uint8_t touchYLowIndex = 6;
      static constexpr uint8_t touchIdIndex = 5;
      static constexpr uint8_t touchStep = 6;
      static constexpr uint8_t gestureIndex = 1;

      uint8_t touchData[10];
      TwiMaster& twiMaster;
      uint8_t twiAddress;
    };

  }
}