67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
#pragma once
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#include <nrfx_twi.h>
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namespace Pinetime {
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namespace Drivers {
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class Cst816S {
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public :
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enum class Gestures : uint8_t {
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None = 0x00,
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SlideDown = 0x01,
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SlideUp = 0x02,
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SlideLeft = 0x03,
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SlideRight = 0x04,
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SingleTap = 0x05,
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DoubleTap = 0x0B,
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LongPress = 0x0C
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};
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struct TouchInfos {
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uint16_t x;
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uint16_t y;
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uint8_t action;
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uint8_t finger;
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uint8_t pressure;
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uint8_t area;
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Gestures gesture;
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bool isTouch = false;
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};
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Cst816S() = default;
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Cst816S(const Cst816S&) = delete;
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Cst816S& operator=(const Cst816S&) = delete;
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Cst816S(Cst816S&&) = delete;
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Cst816S& operator=(Cst816S&&) = delete;
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void Init();
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void Probe();
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TouchInfos GetTouchInfo();
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void Sleep();
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void Wakeup();
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private:
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static constexpr uint8_t pinIrq = 28;
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static constexpr uint8_t pinReset = 10;
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static constexpr uint8_t address = 0x15;
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static constexpr uint8_t lastTouchId = 0x0f;
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static constexpr uint8_t touchPointNumIndex = 2;
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static constexpr uint8_t touchMiscIndex = 8;
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static constexpr uint8_t touchXYIndex = 7;
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static constexpr uint8_t touchEventIndex = 3;
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static constexpr uint8_t touchXHighIndex = 3;
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static constexpr uint8_t touchXLowIndex = 4;
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static constexpr uint8_t touchYHighIndex = 5;
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static constexpr uint8_t touchYLowIndex = 6;
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static constexpr uint8_t touchIdIndex = 5;
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static constexpr uint8_t touchStep = 6;
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static constexpr uint8_t gestureIndex = 1;
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uint8_t touchData[63];
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// TODO TWI (i²C) should be created outside and injected into this class
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// It will be needed when implementing other I²C devices
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// (0x15 = touch, 0x18 = accelerometer, 0x44 = HR sensor)
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nrfx_twi_t twi = NRFX_TWI_INSTANCE(1); // Use instance 1, because instance 0 is already used by SPI
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};
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}
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}
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