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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#pragma once
#include <stdint.h>
#include <functional>
#include "esp_err.h"
#include "result.hpp"
#include "gpios.hpp"
namespace drivers {
struct TouchWheelData {
bool is_wheel_touched = false;
bool is_button_touched = false;
uint8_t wheel_position = -1;
};
class TouchWheel {
public:
static auto Create() -> TouchWheel* { return new TouchWheel(); }
TouchWheel();
~TouchWheel();
// Not copyable or movable.
TouchWheel(const TouchWheel&) = delete;
TouchWheel& operator=(const TouchWheel&) = delete;
auto Update() -> void;
auto GetTouchWheelData() const -> TouchWheelData;
auto PowerDown() -> void;
private:
TouchWheelData data_;
enum Register {
FIRMWARE_VERSION = 1,
DETECTION_STATUS = 2,
KEY_STATUS_A = 3,
KEY_STATUS_B = 4,
SLIDER_POSITION = 5,
CALIBRATE = 6,
RESET = 7,
LOW_POWER = 8,
RECALIBRATION_DELAY = 12,
SLIDER_OPTIONS = 14,
CHARGE_TIME = 15,
DETECT_THRESHOLD_BASE = 16,
KEY_CONTROL_BASE = 28,
PULSE_SCALE_BASE = 40,
};
void WriteRegister(uint8_t reg, uint8_t val);
uint8_t ReadRegister(uint8_t reg);
};
} // namespace drivers
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