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61 lines
1.1 KiB
61 lines
1.1 KiB
2 years ago
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#pragma once
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#include <functional>
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#include <stdint.h>
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#include "esp_err.h"
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#include "result.hpp"
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#include "gpio_expander.hpp"
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namespace drivers {
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struct TouchWheelData {
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bool is_touched = false;
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uint8_t wheel_position = -1;
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};
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class TouchWheel {
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public:
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enum Error {
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FAILED_TO_BOOT,
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FAILED_TO_CONFIGURE,
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};
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static auto create(GpioExpander* expander)
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-> cpp::result<std::unique_ptr<TouchWheel>, Error>;
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TouchWheel(GpioExpander* gpio);
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~TouchWheel();
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// Not copyable or movable.
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TouchWheel(const TouchWheel&) = delete;
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TouchWheel& operator=(const TouchWheel&) = delete;
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auto Update() -> void;
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auto GetTouchWheelData() const -> TouchWheelData;
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private:
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GpioExpander* gpio_;
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TouchWheelData data_;
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enum Register {
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FIRMWARE_VERSION = 0x1,
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DETECTION_STATUS = 0x2,
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KEY_STATUS_A = 0x3,
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KEY_STATUS_B = 0x4,
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SLIDER_POSITION = 0x5,
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CALIBRATE = 0x6,
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RESET = 0x7,
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LOW_POWER = 0x8,
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SLIDER_OPTIONS = 0x14,
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};
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void WriteRegister(uint8_t reg, uint8_t val);
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void ReadRegister(uint8_t reg, uint8_t* data, uint8_t count);
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};
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} // namespace drivers
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