sys-con/ControllerUSB/include/Controllers/XboxController.h

#pragma once

#include "IController.h"

//References used:
//http://euc.jp/periphs/xbox-controller.ja.html

struct XboxButtonData
{
    uint8_t type;
    uint8_t length;

    bool dpad_up : 1;
    bool dpad_down : 1;
    bool dpad_left : 1;
    bool dpad_right : 1;

    bool start : 1;
    bool back : 1;
    bool stick_left_click : 1;
    bool stick_right_click : 1;

    uint8_t reserved;

    //These are analog
    uint8_t a;
    uint8_t b;
    uint8_t x;
    uint8_t y;

    uint8_t black_buttton;
    uint8_t white_button;

    uint8_t trigger_left;
    uint8_t trigger_right;

    int16_t stick_left_x;
    int16_t stick_left_y;
    int16_t stick_right_x;
    int16_t stick_right_y;
};

struct XboxRumbleData
{
    uint8_t command;
    uint8_t size;
    uint8_t dummy1;
    uint8_t big;
    uint8_t dummy2;
    uint8_t little;
};

class XboxController : public IController
{
private:
    IUSBEndpoint *m_inPipe = nullptr;
    IUSBEndpoint *m_outPipe = nullptr;

    XboxButtonData m_buttonData{};

public:
    XboxController(std::unique_ptr<IUSBDevice> &&interface);
    virtual ~XboxController() override;

    virtual Result Initialize() override;
    virtual void Exit() override;

    Result OpenInterfaces();
    void CloseInterfaces();

    virtual Result GetInput() override;

    virtual NormalizedButtonData GetNormalizedButtonData() override;

    virtual ControllerType GetType() override { return CONTROLLER_XBOX360; }

    inline const XboxButtonData &GetButtonData() { return m_buttonData; };

    float NormalizeTrigger(uint8_t value);
    void NormalizeAxis(int16_t x, int16_t y, uint8_t deadzonePercent, float *x_out, float *y_out);

    Result SetRumble(uint8_t strong_magnitude, uint8_t weak_magnitude);

    static void LoadConfig(const ControllerConfig *config);
    virtual ControllerConfig *GetConfig() override;
};