Miria: The Death of OpenTK 3 (#2194)

* openal: Update to OpenTK 4

* Ryujinx.Graphics.OpenGL: Update to OpenTK 4

* Entirely removed OpenTK 3, still wip

* Use SPB for context creation and handling

Still need to test on GLX and readd input support

* Start implementing a new input system

So far only gamepad are supported, no configuration possible via UI but detected via hotplug/removal

Button mapping backend is implemented

TODO: front end, configuration handling and configuration migration
TODO: keyboard support

* Enforce RGB only framebuffer on the GLWidget

Fix possible transparent window

* Implement UI gamepad frontend

Also fix bad mapping of minus button and ensure gamepad config is updated in real time

* Handle controller being disconnected and reconnected again

* Revert "Enforce RGB only framebuffer on the GLWidget"

This reverts commit 0949715d1a03ec793e35e37f7b610cbff2d63965.

* Fix first color clear

* Filter SDL2 events a bit

* Start working on the keyboard detail

- Rework configuration classes a bit to be more clean.
- Integrate fully the keyboard configuration to the front end (TODO: assigner)
- Start skeleton for the GTK3 keyboard driver

* Add KeyboardStateSnapshot and its integration

* Implement keyboard assigner and GTK3 key mapping

TODO: controller configuration mapping and IGamepad implementation for keyboard

* Add missing SR and SL definitions

* Fix copy pasta mistake on config for previous commit

* Implement IGamepad interface for GTK3 keyboard

* Fix some implementation still being commented in the controller ui for keyboard

* Port screen handle code

* Remove all configuration management code and move HidNew to Hid

* Rename InputConfigNew to InputConfig

* Add a version field to the input config

* Prepare serialization and deserialization of new input config and migrate profile loading and saving

* Support input configuration saving to config and bump config version to 23.

* Clean up in ConfigurationState

* Reference SPB via a nuget package

* Move new input system to Ryujinx.Input project and SDL2 detail to Ryujinx.Input.SDL2

* move GTK3 input to the right directory

* Fix triggers on SDL2

* Update to SDL2 2.0.14 via our own fork

* Update buttons definition for SDL2 2.0.14 and report gamepad features

* Implement motion support again with SDL2

TODO: cemu hooks integration

* Switch to latest of nightly SDL2

* SDL2: Fix bugs in gamepad id matching allowing different gamepad to match on the same device index

* Ensure values are set in UI when the gamepad get hot plugged

* Avoid trying to add controllers in the Update method and don't open SDL2 gamepad instance before checking ids

This fixes permanent rumble of pro controller in some hotplug scenario

* Fix more UI bugs

* Move legcay motion code around before reintegration

* gamecontroller UI tweaks here and there

* Hide Motion on non motion configurations

* Update the TODO grave

Some TODO were fixed long time ago or are quite oudated...

* Integrate cemu hooks motion configuration

* Integrate cemu hooks configuration options to the UI again

* cemuhooks => cemuhooks

* Add cemu hook support again

* Fix regression on normal motion and fix some very nasty bugs around

* Fix for XCB multithreads issue on Linux

* Enable motion by default

* Block inputs in the main view when in the controller configuration window

* Some fixes for the controller ui again

* Add joycon support and fixes other hints

* Bug fixes and clean up

- Invert default mapping if not a Nintendo controller
- Keep alive the controller being selected on the controller window (allow to avoid big delay for controller needing time to init when doing button assignment)
- Clean up hints in use
- Remove debug logs around
- Fixes potential double free with SDL2Gamepad

* Move the button assigner and motion logic to the Ryujinx.Input project

* Reimplement raw keyboard hle input

Also move out the logic of the hotkeys

* Move all remaining Input manager stuffs to the Ryujinx.Input project

* Increment configuration version yet again because of master changes

* Ensure input config isn't null when not present

* Fixes for VS not being nice

* Fix broken gamepad caching logic causing crashes on ui

* Ensure the background context is destroyed

* Update dependencies

* Readd retrocompat with old format of the config to avoid parsing and crashes on those versions

Also updated the debug Config.json

* Document new input APIs

* Isolate SDL2Driver to the project and remove external export of it

* Add support for external gamepad db mappings on SDL2

* Last clean up before PR

* Addresses first part of comments

* Address gdkchan's comments

* Do not use JsonException

* Last comment fixes

Ryujinx.Input/Assigner/GamepadButtonAssigner.cs

@@ -0,0 +1,198 @@
+using System.Collections.Generic;
+using System;
+using System.IO;
+using System.Linq;
+
+namespace Ryujinx.Input.Assigner
+{
+    /// <summary>
+    /// <see cref="IButtonAssigner"/> implementation for regular <see cref="IGamepad"/>.
+    /// </summary>
+    public class GamepadButtonAssigner : IButtonAssigner
+    {
+        private IGamepad _gamepad;
+
+        private GamepadStateSnapshot _currState;
+
+        private GamepadStateSnapshot _prevState;
+
+        private JoystickButtonDetector _detector;
+
+        private bool _forStick;
+
+        public GamepadButtonAssigner(IGamepad gamepad, float triggerThreshold, bool forStick)
+        {
+            _gamepad = gamepad;
+            _detector = new JoystickButtonDetector();
+            _forStick = forStick;
+
+            _gamepad?.SetTriggerThreshold(triggerThreshold);
+        }
+
+        public void Initialize()
+        {
+            if (_gamepad != null)
+            {
+                _currState = _gamepad.GetStateSnapshot();
+                _prevState = _currState;
+            }    
+        }
+
+        public void ReadInput()
+        {
+            if (_gamepad != null)
+            {
+                _prevState = _currState;
+                _currState = _gamepad.GetStateSnapshot();
+            }
+
+            CollectButtonStats();
+        }
+
+        public bool HasAnyButtonPressed()
+        {
+            return _detector.HasAnyButtonPressed();
+        }
+
+        public bool ShouldCancel()
+        {
+            return _gamepad == null || !_gamepad.IsConnected;
+        }
+
+        public string GetPressedButton()
+        {
+            IEnumerable<GamepadButtonInputId> pressedButtons = _detector.GetPressedButtons();
+
+            if (pressedButtons.Any())
+            {
+                return !_forStick ? pressedButtons.First().ToString() : ((StickInputId)pressedButtons.First()).ToString();
+            }
+
+            return "";
+        }
+
+        private void CollectButtonStats()
+        {
+            if (_forStick)
+            {
+                for (StickInputId inputId = StickInputId.Left; inputId < StickInputId.Count; inputId++)
+                {
+                    (float x, float y) = _currState.GetStick(inputId);
+
+                    float value;
+
+                    if (x != 0.0f)
+                    {
+                        value = x;
+                    }
+                    else if (y != 0.0f)
+                    {
+                        value = y;
+                    }
+                    else
+                    {
+                        continue;
+                    }
+
+                    _detector.AddInput((GamepadButtonInputId)inputId, value);
+                }
+            }
+            else
+            {
+                for (GamepadButtonInputId inputId = GamepadButtonInputId.A; inputId < GamepadButtonInputId.Count; inputId++)
+                {
+                    if (_currState.IsPressed(inputId) && !_prevState.IsPressed(inputId))
+                    {
+                        _detector.AddInput(inputId, 1);
+                    }
+
+                    if (!_currState.IsPressed(inputId) && _prevState.IsPressed(inputId))
+                    {
+                        _detector.AddInput(inputId, -1);
+                    }
+                }
+            }
+        }
+
+        private class JoystickButtonDetector
+        {
+            private Dictionary<GamepadButtonInputId, InputSummary> _stats;
+
+            public JoystickButtonDetector()
+            {
+                _stats = new Dictionary<GamepadButtonInputId, InputSummary>();
+            }
+
+            public bool HasAnyButtonPressed()
+            {
+                return _stats.Values.Any(CheckButtonPressed);
+            }
+
+            public IEnumerable<GamepadButtonInputId> GetPressedButtons()
+            {
+                return _stats.Where(kvp => CheckButtonPressed(kvp.Value)).Select(kvp => kvp.Key);
+            }
+
+            public void AddInput(GamepadButtonInputId button, float value)
+            {
+                InputSummary inputSummary;
+
+                if (!_stats.TryGetValue(button, out inputSummary))
+                {
+                    inputSummary = new InputSummary();
+                    _stats.Add(button, inputSummary);
+                }
+
+                inputSummary.AddInput(value);
+            }
+
+            public override string ToString()
+            {
+                StringWriter writer = new StringWriter();
+
+                foreach (var kvp in _stats)
+                {
+                    writer.WriteLine($"Button {kvp.Key} -> {kvp.Value}");
+                }
+
+                return writer.ToString();
+            }
+
+            private bool CheckButtonPressed(InputSummary sequence)
+            {
+                float distance = Math.Abs(sequence.Min - sequence.Avg) + Math.Abs(sequence.Max - sequence.Avg);
+                return distance > 1.5; // distance range [0, 2]
+            }
+        }
+
+        private class InputSummary
+        {
+            public float Min, Max, Sum, Avg;
+
+            public int NumSamples;
+
+            public InputSummary()
+            {
+                Min = float.MaxValue;
+                Max = float.MinValue;
+                Sum = 0;
+                NumSamples = 0;
+                Avg = 0;
+            }
+
+            public void AddInput(float value)
+            {
+                Min = Math.Min(Min, value);
+                Max = Math.Max(Max, value);
+                Sum += value;
+                NumSamples += 1;
+                Avg = Sum / NumSamples;
+            }
+
+            public override string ToString()
+            {
+                return $"Avg: {Avg} Min: {Min} Max: {Max} Sum: {Sum} NumSamples: {NumSamples}";
+            }
+        }
+    }
+}

Ryujinx.Input/Assigner/IButtonAssigner.cs

@@ -0,0 +1,36 @@
+namespace Ryujinx.Input.Assigner
+{
+    /// <summary>
+    /// An interface that allows to gather the driver input info to assign to a button on the UI.
+    /// </summary>
+    public interface IButtonAssigner
+    {
+        /// <summary>
+        /// Initialize the button assigner.
+        /// </summary>
+        void Initialize();
+
+        /// <summary>
+        /// Read input.
+        /// </summary>
+        void ReadInput();
+
+        /// <summary>
+        /// Check if a button was pressed.
+        /// </summary>
+        /// <returns>True if a button was pressed</returns>
+        bool HasAnyButtonPressed();
+
+        /// <summary>
+        /// Indicate if the user of this API should cancel operations. This is triggered for example when a gamepad get disconnected or when a user cancel assignation operations.
+        /// </summary>
+        /// <returns>True if the user of this API should cancel operations</returns>
+        bool ShouldCancel();
+
+        /// <summary>
+        /// Get the pressed button that was read in <see cref="ReadInput"/> by the button assigner.
+        /// </summary>
+        /// <returns>The pressed button that was read</returns>
+        string GetPressedButton();
+    }
+}

Ryujinx.Input/Assigner/KeyboardKeyAssigner.cs

@@ -0,0 +1,50 @@
+namespace Ryujinx.Input.Assigner
+{
+    /// <summary>
+    /// <see cref="IButtonAssigner"/> implementation for <see cref="IKeyboard"/>.
+    /// </summary>
+    public class KeyboardKeyAssigner : IButtonAssigner
+    {
+        private IKeyboard _keyboard;
+
+        private KeyboardStateSnapshot _keyboardState;
+
+        public KeyboardKeyAssigner(IKeyboard keyboard)
+        {
+            _keyboard = keyboard;
+        }
+
+        public void Initialize() { }
+
+        public void ReadInput()
+        {
+            _keyboardState = _keyboard.GetKeyboardStateSnapshot();
+        }
+
+        public bool HasAnyButtonPressed()
+        {
+            return GetPressedButton().Length != 0;
+        }
+
+        public bool ShouldCancel()
+        {
+            return _keyboardState.IsPressed(Key.Escape);
+        }
+
+        public string GetPressedButton()
+        {
+            string keyPressed = "";
+
+            for (Key key = Key.Unknown; key < Key.Count; key++)
+            {
+                if (_keyboardState.IsPressed(key))
+                {
+                    keyPressed = key.ToString();
+                    break;
+                }
+            }
+
+            return !ShouldCancel() ? keyPressed : "";
+        }
+    }
+}

Ryujinx.Input/GamepadButtonInputId.cs

@@ -0,0 +1,57 @@
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// Represent a button from a gamepad.
+    /// </summary>
+    public enum GamepadButtonInputId : byte
+    {
+        Unbound,
+        A,
+        B,
+        X,
+        Y,
+        LeftStick,
+        RightStick,
+        LeftShoulder,
+        RightShoulder,
+
+        // Likely axis
+        LeftTrigger,
+        // Likely axis
+        RightTrigger,
+
+        DpadUp,
+        DpadDown,
+        DpadLeft,
+        DpadRight,
+
+        // Special buttons
+
+        Minus,
+        Plus,
+
+        Back = Minus,
+        Start = Plus,
+
+        Guide,
+        Misc1,
+
+        // Xbox Elite paddle
+        Paddle1,
+        Paddle2,
+        Paddle3,
+        Paddle4,
+
+        // PS5 touchpad button
+        Touchpad,
+
+        // Virtual buttons for single joycon
+        SingleLeftTrigger0,
+        SingleRightTrigger0,
+
+        SingleLeftTrigger1,
+        SingleRightTrigger1,
+
+        Count
+    }
+}

Ryujinx.Input/GamepadFeaturesFlag.cs

@@ -0,0 +1,28 @@
+using System;
+
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// Represent features supported by a <see cref="IGamepad"/>.
+    /// </summary>
+    [Flags]
+    public enum GamepadFeaturesFlag
+    {
+        /// <summary>
+        /// No features are supported
+        /// </summary>
+        None,
+
+        /// <summary>
+        /// Rumble
+        /// </summary>
+        /// <remarks>Also named haptic</remarks>
+        Rumble,
+
+        /// <summary>
+        /// Motion
+        /// <remarks>Also named sixaxis</remarks>
+        /// </summary>
+        Motion
+    }
+}

Ryujinx.Input/GamepadStateSnapshot.cs

@@ -0,0 +1,70 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// A snapshot of a <see cref="IGamepad"/>.
+    /// </summary>
+    public struct GamepadStateSnapshot
+    {
+        // NOTE: Update Array size if JoystickInputId is changed.
+        private Array3<Array2<float>> _joysticksState;
+        // NOTE: Update Array size if GamepadInputId is changed.
+        private Array28<bool> _buttonsState;
+
+        /// <summary>
+        /// Create a new instance of <see cref="GamepadStateSnapshot"/>.
+        /// </summary>
+        /// <param name="joysticksState">The joysticks state</param>
+        /// <param name="buttonsState">The buttons state</param>
+        public GamepadStateSnapshot(Array3<Array2<float>> joysticksState, Array28<bool> buttonsState)
+        {
+            _joysticksState = joysticksState;
+            _buttonsState = buttonsState;
+        }
+
+        /// <summary>
+        /// Check if a given input button is pressed.
+        /// </summary>
+        /// <param name="inputId">The button id</param>
+        /// <returns>True if the given button is pressed</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool IsPressed(GamepadButtonInputId inputId) => _buttonsState[(int)inputId];
+
+
+        /// <summary>
+        /// Set the state of a given button.
+        /// </summary>
+        /// <param name="inputId">The button id</param>
+        /// <param name="value">The state to assign for the given button.</param>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetPressed(GamepadButtonInputId inputId, bool value) => _buttonsState[(int)inputId] = value;
+
+        /// <summary>
+        /// Get the values of a given input joystick.
+        /// </summary>
+        /// <param name="inputId">The stick id</param>
+        /// <returns>The values of the given input joystick</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public (float, float) GetStick(StickInputId inputId)
+        {
+            var result = _joysticksState[(int)inputId];
+
+            return (result[0], result[1]);
+        }
+
+        /// <summary>
+        /// Set the values of a given input joystick.
+        /// </summary>
+        /// <param name="inputId">The stick id</param>
+        /// <param name="x">The x axis value</param>
+        /// <param name="y">The y axis value</param>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public void SetStick(StickInputId inputId, float x, float y)
+        {
+            _joysticksState[(int)inputId][0] = x;
+            _joysticksState[(int)inputId][1] = y;
+        }
+    }
+}

Ryujinx.Input/HLE/InputManager.cs

@@ -0,0 +1,35 @@
+using System;
+
+namespace Ryujinx.Input.HLE
+{
+    public class InputManager : IDisposable
+    {
+        public IGamepadDriver KeyboardDriver { get; private set; }
+        public IGamepadDriver GamepadDriver { get; private set; }
+
+        public InputManager(IGamepadDriver keyboardDriver, IGamepadDriver gamepadDriver)
+        {
+            KeyboardDriver = keyboardDriver;
+            GamepadDriver = gamepadDriver;
+        }
+
+        public NpadManager CreateNpadManager()
+        {
+            return new NpadManager(KeyboardDriver, GamepadDriver);
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                KeyboardDriver?.Dispose();
+                GamepadDriver?.Dispose();
+            }
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+    }
+}

Ryujinx.Input/HLE/NpadController.cs

@@ -0,0 +1,496 @@
+using Ryujinx.Common;
+using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Hid.Controller;
+using Ryujinx.Common.Configuration.Hid.Controller.Motion;
+using Ryujinx.HLE.HOS.Services.Hid;
+using System;
+using System.Numerics;
+using System.Runtime.CompilerServices;
+
+using CemuHookClient = Ryujinx.Input.Motion.CemuHook.Client;
+using ConfigControllerType = Ryujinx.Common.Configuration.Hid.ControllerType;
+
+namespace Ryujinx.Input.HLE
+{
+    public class NpadController : IDisposable
+    {
+        private class HLEButtonMappingEntry
+        {
+            public readonly GamepadButtonInputId DriverInputId;
+            public readonly ControllerKeys HLEInput;
+
+            public HLEButtonMappingEntry(GamepadButtonInputId driverInputId, ControllerKeys hleInput)
+            {
+                DriverInputId = driverInputId;
+                HLEInput = hleInput;
+            }
+        }
+
+        private static readonly HLEButtonMappingEntry[] _hleButtonMapping = new HLEButtonMappingEntry[]
+        {
+            new HLEButtonMappingEntry(GamepadButtonInputId.A, ControllerKeys.A),
+            new HLEButtonMappingEntry(GamepadButtonInputId.B, ControllerKeys.B),
+            new HLEButtonMappingEntry(GamepadButtonInputId.X, ControllerKeys.X),
+            new HLEButtonMappingEntry(GamepadButtonInputId.Y, ControllerKeys.Y),
+            new HLEButtonMappingEntry(GamepadButtonInputId.LeftStick, ControllerKeys.LStick),
+            new HLEButtonMappingEntry(GamepadButtonInputId.RightStick, ControllerKeys.RStick),
+            new HLEButtonMappingEntry(GamepadButtonInputId.LeftShoulder, ControllerKeys.L),
+            new HLEButtonMappingEntry(GamepadButtonInputId.RightShoulder, ControllerKeys.R),
+            new HLEButtonMappingEntry(GamepadButtonInputId.LeftTrigger, ControllerKeys.Zl),
+            new HLEButtonMappingEntry(GamepadButtonInputId.RightTrigger, ControllerKeys.Zr),
+            new HLEButtonMappingEntry(GamepadButtonInputId.DpadUp, ControllerKeys.DpadUp),
+            new HLEButtonMappingEntry(GamepadButtonInputId.DpadDown, ControllerKeys.DpadDown),
+            new HLEButtonMappingEntry(GamepadButtonInputId.DpadLeft, ControllerKeys.DpadLeft),
+            new HLEButtonMappingEntry(GamepadButtonInputId.DpadRight, ControllerKeys.DpadRight),
+            new HLEButtonMappingEntry(GamepadButtonInputId.Minus, ControllerKeys.Minus),
+            new HLEButtonMappingEntry(GamepadButtonInputId.Plus, ControllerKeys.Plus),
+
+            new HLEButtonMappingEntry(GamepadButtonInputId.SingleLeftTrigger0, ControllerKeys.SlLeft),
+            new HLEButtonMappingEntry(GamepadButtonInputId.SingleRightTrigger0, ControllerKeys.SrLeft),
+            new HLEButtonMappingEntry(GamepadButtonInputId.SingleLeftTrigger1, ControllerKeys.SlRight),
+            new HLEButtonMappingEntry(GamepadButtonInputId.SingleRightTrigger1, ControllerKeys.SrRight),
+        };
+
+        private class HLEKeyboardMappingEntry
+        {
+            public readonly Key TargetKey;
+            public readonly byte Target;
+
+            public HLEKeyboardMappingEntry(Key targetKey, byte target)
+            {
+                TargetKey = targetKey;
+                Target = target;
+            }
+        }
+
+        private static readonly HLEKeyboardMappingEntry[] KeyMapping = new HLEKeyboardMappingEntry[]
+        {
+            new HLEKeyboardMappingEntry(Key.A, 0x4),
+            new HLEKeyboardMappingEntry(Key.B, 0x5),
+            new HLEKeyboardMappingEntry(Key.C, 0x6),
+            new HLEKeyboardMappingEntry(Key.D, 0x7),
+            new HLEKeyboardMappingEntry(Key.E, 0x8),
+            new HLEKeyboardMappingEntry(Key.F, 0x9),
+            new HLEKeyboardMappingEntry(Key.G, 0xA),
+            new HLEKeyboardMappingEntry(Key.H, 0xB),
+            new HLEKeyboardMappingEntry(Key.I, 0xC),
+            new HLEKeyboardMappingEntry(Key.J, 0xD),
+            new HLEKeyboardMappingEntry(Key.K, 0xE),
+            new HLEKeyboardMappingEntry(Key.L, 0xF),
+            new HLEKeyboardMappingEntry(Key.M, 0x10),
+            new HLEKeyboardMappingEntry(Key.N, 0x11),
+            new HLEKeyboardMappingEntry(Key.O, 0x12),
+            new HLEKeyboardMappingEntry(Key.P, 0x13),
+            new HLEKeyboardMappingEntry(Key.Q, 0x14),
+            new HLEKeyboardMappingEntry(Key.R, 0x15),
+            new HLEKeyboardMappingEntry(Key.S, 0x16),
+            new HLEKeyboardMappingEntry(Key.T, 0x17),
+            new HLEKeyboardMappingEntry(Key.U, 0x18),
+            new HLEKeyboardMappingEntry(Key.V, 0x19),
+            new HLEKeyboardMappingEntry(Key.W, 0x1A),
+            new HLEKeyboardMappingEntry(Key.X, 0x1B),
+            new HLEKeyboardMappingEntry(Key.Y, 0x1C),
+            new HLEKeyboardMappingEntry(Key.Z, 0x1D),
+
+            new HLEKeyboardMappingEntry(Key.Number1, 0x1E),
+            new HLEKeyboardMappingEntry(Key.Number2, 0x1F),
+            new HLEKeyboardMappingEntry(Key.Number3, 0x20),
+            new HLEKeyboardMappingEntry(Key.Number4, 0x21),
+            new HLEKeyboardMappingEntry(Key.Number5, 0x22),
+            new HLEKeyboardMappingEntry(Key.Number6, 0x23),
+            new HLEKeyboardMappingEntry(Key.Number7, 0x24),
+            new HLEKeyboardMappingEntry(Key.Number8, 0x25),
+            new HLEKeyboardMappingEntry(Key.Number9, 0x26),
+            new HLEKeyboardMappingEntry(Key.Number0, 0x27),
+
+            new HLEKeyboardMappingEntry(Key.Enter,        0x28),
+            new HLEKeyboardMappingEntry(Key.Escape,       0x29),
+            new HLEKeyboardMappingEntry(Key.BackSpace,    0x2A),
+            new HLEKeyboardMappingEntry(Key.Tab,          0x2B),
+            new HLEKeyboardMappingEntry(Key.Space,        0x2C),
+            new HLEKeyboardMappingEntry(Key.Minus,        0x2D),
+            new HLEKeyboardMappingEntry(Key.Plus,         0x2E),
+            new HLEKeyboardMappingEntry(Key.BracketLeft,  0x2F),
+            new HLEKeyboardMappingEntry(Key.BracketRight, 0x30),
+            new HLEKeyboardMappingEntry(Key.BackSlash,    0x31),
+            new HLEKeyboardMappingEntry(Key.Tilde,        0x32),
+            new HLEKeyboardMappingEntry(Key.Semicolon,    0x33),
+            new HLEKeyboardMappingEntry(Key.Quote,        0x34),
+            new HLEKeyboardMappingEntry(Key.Grave,        0x35),
+            new HLEKeyboardMappingEntry(Key.Comma,        0x36),
+            new HLEKeyboardMappingEntry(Key.Period,       0x37),
+            new HLEKeyboardMappingEntry(Key.Slash,        0x38),
+            new HLEKeyboardMappingEntry(Key.CapsLock,     0x39),
+
+            new HLEKeyboardMappingEntry(Key.F1,  0x3a),
+            new HLEKeyboardMappingEntry(Key.F2,  0x3b),
+            new HLEKeyboardMappingEntry(Key.F3,  0x3c),
+            new HLEKeyboardMappingEntry(Key.F4,  0x3d),
+            new HLEKeyboardMappingEntry(Key.F5,  0x3e),
+            new HLEKeyboardMappingEntry(Key.F6,  0x3f),
+            new HLEKeyboardMappingEntry(Key.F7,  0x40),
+            new HLEKeyboardMappingEntry(Key.F8,  0x41),
+            new HLEKeyboardMappingEntry(Key.F9,  0x42),
+            new HLEKeyboardMappingEntry(Key.F10, 0x43),
+            new HLEKeyboardMappingEntry(Key.F11, 0x44),
+            new HLEKeyboardMappingEntry(Key.F12, 0x45),
+
+            new HLEKeyboardMappingEntry(Key.PrintScreen, 0x46),
+            new HLEKeyboardMappingEntry(Key.ScrollLock,  0x47),
+            new HLEKeyboardMappingEntry(Key.Pause,       0x48),
+            new HLEKeyboardMappingEntry(Key.Insert,      0x49),
+            new HLEKeyboardMappingEntry(Key.Home,        0x4A),
+            new HLEKeyboardMappingEntry(Key.PageUp,      0x4B),
+            new HLEKeyboardMappingEntry(Key.Delete,      0x4C),
+            new HLEKeyboardMappingEntry(Key.End,         0x4D),
+            new HLEKeyboardMappingEntry(Key.PageDown,    0x4E),
+            new HLEKeyboardMappingEntry(Key.Right,       0x4F),
+            new HLEKeyboardMappingEntry(Key.Left,        0x50),
+            new HLEKeyboardMappingEntry(Key.Down,        0x51),
+            new HLEKeyboardMappingEntry(Key.Up,          0x52),
+
+            new HLEKeyboardMappingEntry(Key.NumLock,        0x53),
+            new HLEKeyboardMappingEntry(Key.KeypadDivide,   0x54),
+            new HLEKeyboardMappingEntry(Key.KeypadMultiply, 0x55),
+            new HLEKeyboardMappingEntry(Key.KeypadSubtract, 0x56),
+            new HLEKeyboardMappingEntry(Key.KeypadAdd,      0x57),
+            new HLEKeyboardMappingEntry(Key.KeypadEnter,    0x58),
+            new HLEKeyboardMappingEntry(Key.Keypad1,        0x59),
+            new HLEKeyboardMappingEntry(Key.Keypad2,        0x5A),
+            new HLEKeyboardMappingEntry(Key.Keypad3,        0x5B),
+            new HLEKeyboardMappingEntry(Key.Keypad4,        0x5C),
+            new HLEKeyboardMappingEntry(Key.Keypad5,        0x5D),
+            new HLEKeyboardMappingEntry(Key.Keypad6,        0x5E),
+            new HLEKeyboardMappingEntry(Key.Keypad7,        0x5F),
+            new HLEKeyboardMappingEntry(Key.Keypad8,        0x60),
+            new HLEKeyboardMappingEntry(Key.Keypad9,        0x61),
+            new HLEKeyboardMappingEntry(Key.Keypad0,        0x62),
+            new HLEKeyboardMappingEntry(Key.KeypadDecimal,  0x63),
+
+            new HLEKeyboardMappingEntry(Key.F13, 0x68),
+            new HLEKeyboardMappingEntry(Key.F14, 0x69),
+            new HLEKeyboardMappingEntry(Key.F15, 0x6A),
+            new HLEKeyboardMappingEntry(Key.F16, 0x6B),
+            new HLEKeyboardMappingEntry(Key.F17, 0x6C),
+            new HLEKeyboardMappingEntry(Key.F18, 0x6D),
+            new HLEKeyboardMappingEntry(Key.F19, 0x6E),
+            new HLEKeyboardMappingEntry(Key.F20, 0x6F),
+            new HLEKeyboardMappingEntry(Key.F21, 0x70),
+            new HLEKeyboardMappingEntry(Key.F22, 0x71),
+            new HLEKeyboardMappingEntry(Key.F23, 0x72),
+            new HLEKeyboardMappingEntry(Key.F24, 0x73),
+
+            new HLEKeyboardMappingEntry(Key.ControlLeft,  0xE0),
+            new HLEKeyboardMappingEntry(Key.ShiftLeft,    0xE1),
+            new HLEKeyboardMappingEntry(Key.AltLeft,      0xE2),
+            new HLEKeyboardMappingEntry(Key.WinLeft,      0xE3),
+            new HLEKeyboardMappingEntry(Key.ControlRight, 0xE4),
+            new HLEKeyboardMappingEntry(Key.ShiftRight,   0xE5),
+            new HLEKeyboardMappingEntry(Key.AltRight,     0xE6),
+            new HLEKeyboardMappingEntry(Key.WinRight,     0xE7),
+        };
+
+        private static readonly HLEKeyboardMappingEntry[] KeyModifierMapping = new HLEKeyboardMappingEntry[]
+        {
+            new HLEKeyboardMappingEntry(Key.ControlLeft,  0),
+            new HLEKeyboardMappingEntry(Key.ShiftLeft,    1),
+            new HLEKeyboardMappingEntry(Key.AltLeft,      2),
+            new HLEKeyboardMappingEntry(Key.WinLeft,      3),
+            new HLEKeyboardMappingEntry(Key.ControlRight, 4),
+            new HLEKeyboardMappingEntry(Key.ShiftRight,   5),
+            new HLEKeyboardMappingEntry(Key.AltRight,     6),
+            new HLEKeyboardMappingEntry(Key.WinRight,     7),
+            new HLEKeyboardMappingEntry(Key.CapsLock,     8),
+            new HLEKeyboardMappingEntry(Key.ScrollLock,   9),
+            new HLEKeyboardMappingEntry(Key.NumLock,      10),
+        };
+
+        private bool _isValid;
+        private string _id;
+
+        private MotionInput _motionInput;
+
+        private IGamepad _gamepad;
+        private InputConfig _config;
+
+        public IGamepadDriver GamepadDriver { get; private set; }
+        public GamepadStateSnapshot State { get; private set; }
+
+        public string Id => _id;
+
+        private CemuHookClient _cemuHookClient;
+
+        public NpadController(CemuHookClient cemuHookClient)
+        {
+            State = default;
+            _id = null;
+            _isValid = false;
+            _cemuHookClient = cemuHookClient;
+        }
+
+        public bool UpdateDriverConfiguration(IGamepadDriver gamepadDriver, InputConfig config)
+        {
+            GamepadDriver = gamepadDriver;
+
+            _gamepad?.Dispose();
+
+            _id = config.Id;
+            _gamepad = GamepadDriver.GetGamepad(_id);
+            _isValid = _gamepad != null;
+
+            UpdateUserConfiguration(config);
+
+            return _isValid;
+        }
+
+        public void UpdateUserConfiguration(InputConfig config)
+        {
+            if (config is StandardControllerInputConfig controllerConfig)
+            {
+                bool needsMotionInputUpdate = _config == null || (_config is StandardControllerInputConfig oldControllerConfig &&
+                                                                (oldControllerConfig.Motion.EnableMotion != controllerConfig.Motion.EnableMotion) &&
+                                                                (oldControllerConfig.Motion.MotionBackend != controllerConfig.Motion.MotionBackend));
+
+                if (needsMotionInputUpdate)
+                {
+                    UpdateMotionInput(controllerConfig.Motion);
+                }
+            }
+            else
+            {
+                // Non-controller doesn't have motions.
+                _motionInput = null;
+            }
+
+            _config = config;
+
+            if (_isValid)
+            {
+                _gamepad.SetConfiguration(config);
+            }
+        }
+
+        private void UpdateMotionInput(MotionConfigController motionConfig)
+        {
+            if (motionConfig.MotionBackend != MotionInputBackendType.CemuHook)
+            {
+                _motionInput = new MotionInput();
+             }
+            else
+            {
+                _motionInput = null;
+            }
+        }
+
+        public void Update()
+        {
+            if (_isValid && GamepadDriver != null)
+            {
+                State = _gamepad.GetMappedStateSnapshot();
+
+                if (_config is StandardControllerInputConfig controllerConfig && controllerConfig.Motion.EnableMotion)
+                {
+                    if (controllerConfig.Motion.MotionBackend == MotionInputBackendType.GamepadDriver)
+                    {
+                        if (_gamepad.Features.HasFlag(GamepadFeaturesFlag.Motion))
+                        {
+                            Vector3 accelerometer = _gamepad.GetMotionData(MotionInputId.Accelerometer);
+                            Vector3 gyroscope = _gamepad.GetMotionData(MotionInputId.Gyroscope);
+
+                            accelerometer = new Vector3(accelerometer.X, -accelerometer.Z, accelerometer.Y);
+                            gyroscope = new Vector3(gyroscope.X, gyroscope.Z, gyroscope.Y);
+
+                            _motionInput.Update(accelerometer, gyroscope, (ulong)PerformanceCounter.ElapsedNanoseconds / 1000, controllerConfig.Motion.Sensitivity, (float)controllerConfig.Motion.GyroDeadzone);
+                        }
+                    }
+                    else if (controllerConfig.Motion.MotionBackend == MotionInputBackendType.CemuHook && controllerConfig.Motion is CemuHookMotionConfigController cemuControllerConfig)
+                    {
+                        int clientId = (int)controllerConfig.PlayerIndex;
+
+                        // First of all ensure we are registered
+                        _cemuHookClient.RegisterClient(clientId, cemuControllerConfig.DsuServerHost, cemuControllerConfig.DsuServerPort);
+
+                        // Then request data
+                        _cemuHookClient.RequestData(clientId, cemuControllerConfig.Slot);
+
+                        if (controllerConfig.ControllerType == ConfigControllerType.JoyconPair && !cemuControllerConfig.MirrorInput)
+                        {
+                            _cemuHookClient.RequestData(clientId, cemuControllerConfig.AltSlot);
+                        }
+
+                        // Finally, get motion input data
+                        _cemuHookClient.TryGetData(clientId, cemuControllerConfig.Slot, out _motionInput);
+                    }
+                }
+            }
+            else
+            {
+                // Reset states
+                State = default;
+                _motionInput = null;
+            }
+        }
+
+        private static short ClampAxis(float value)
+        {
+            if (value <= -short.MaxValue)
+            {
+                return -short.MaxValue;
+            }
+            else
+            {
+                return (short)(value * short.MaxValue);
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private static JoystickPosition ApplyDeadzone(float x, float y, float deadzone)
+        {
+            return new JoystickPosition
+            {
+                Dx = ClampAxis(MathF.Abs(x) > deadzone ? x : 0.0f),
+                Dy = ClampAxis(MathF.Abs(y) > deadzone ? y : 0.0f)
+            };
+        }
+
+        public GamepadInput GetHLEInputState()
+        {
+            GamepadInput state = new GamepadInput();
+
+            // First update all buttons
+            foreach (HLEButtonMappingEntry entry in _hleButtonMapping)
+            {
+                if (State.IsPressed(entry.DriverInputId))
+                {
+                    state.Buttons |= entry.HLEInput;
+                }
+            }
+
+            if (_gamepad is IKeyboard)
+            {
+                (float leftAxisX, float leftAxisY) = State.GetStick(StickInputId.Left);
+                (float rightAxisX, float rightAxisY) = State.GetStick(StickInputId.Right);
+
+                state.LStick = new JoystickPosition
+                {
+                    Dx = ClampAxis(leftAxisX),
+                    Dy = ClampAxis(leftAxisY)
+                };
+
+                state.RStick = new JoystickPosition
+                {
+                    Dx = ClampAxis(rightAxisX),
+                    Dy = ClampAxis(rightAxisY)
+                };
+            }
+            else if (_config is StandardControllerInputConfig controllerConfig)
+            {
+                (float leftAxisX, float leftAxisY) = State.GetStick(StickInputId.Left);
+                (float rightAxisX, float rightAxisY) = State.GetStick(StickInputId.Right);
+
+                state.LStick = ApplyDeadzone(leftAxisX, leftAxisY, controllerConfig.DeadzoneLeft);
+                state.RStick = ApplyDeadzone(rightAxisX, rightAxisY, controllerConfig.DeadzoneRight);
+            }
+
+            return state;
+        }
+
+        public SixAxisInput GetHLEMotionState()
+        {
+            float[] orientationForHLE = new float[9];
+            Vector3 gyroscope;
+            Vector3 accelerometer;
+            Vector3 rotation;
+
+            if (_motionInput != null)
+            {
+                gyroscope = Truncate(_motionInput.Gyroscrope * 0.0027f, 3);
+                accelerometer = Truncate(_motionInput.Accelerometer, 3);
+                rotation = Truncate(_motionInput.Rotation * 0.0027f, 3);
+
+                Matrix4x4 orientation = _motionInput.GetOrientation();
+
+                orientationForHLE[0] = Math.Clamp(orientation.M11, -1f, 1f);
+                orientationForHLE[1] = Math.Clamp(orientation.M12, -1f, 1f);
+                orientationForHLE[2] = Math.Clamp(orientation.M13, -1f, 1f);
+                orientationForHLE[3] = Math.Clamp(orientation.M21, -1f, 1f);
+                orientationForHLE[4] = Math.Clamp(orientation.M22, -1f, 1f);
+                orientationForHLE[5] = Math.Clamp(orientation.M23, -1f, 1f);
+                orientationForHLE[6] = Math.Clamp(orientation.M31, -1f, 1f);
+                orientationForHLE[7] = Math.Clamp(orientation.M32, -1f, 1f);
+                orientationForHLE[8] = Math.Clamp(orientation.M33, -1f, 1f);
+            }
+            else
+            {
+                gyroscope = new Vector3();
+                accelerometer = new Vector3();
+                rotation = new Vector3();
+            }
+
+            return new SixAxisInput()
+            {
+                Accelerometer = accelerometer,
+                Gyroscope     = gyroscope,
+                Rotation      = rotation,
+                Orientation   = orientationForHLE
+            };
+        }
+
+        private static Vector3 Truncate(Vector3 value, int decimals)
+        {
+            float power = MathF.Pow(10, decimals);
+
+            value.X = float.IsNegative(value.X) ? MathF.Ceiling(value.X * power) / power : MathF.Floor(value.X * power) / power;
+            value.Y = float.IsNegative(value.Y) ? MathF.Ceiling(value.Y * power) / power : MathF.Floor(value.Y * power) / power;
+            value.Z = float.IsNegative(value.Z) ? MathF.Ceiling(value.Z * power) / power : MathF.Floor(value.Z * power) / power;
+
+            return value;
+        }
+
+        public KeyboardInput? GetHLEKeyboardInput()
+        {
+            if (_gamepad is IKeyboard keyboard)
+            {
+                KeyboardStateSnapshot keyboardState = keyboard.GetKeyboardStateSnapshot();
+
+                KeyboardInput hidKeyboard = new KeyboardInput
+                {
+                    Modifier = 0,
+                    Keys = new int[0x8]
+                };
+
+                foreach (HLEKeyboardMappingEntry entry in KeyMapping)
+                {
+                    int value = keyboardState.IsPressed(entry.TargetKey) ? 1 : 0;
+
+                    hidKeyboard.Keys[entry.Target / 0x20] |= (value << (entry.Target % 0x20));
+                }
+
+                foreach (HLEKeyboardMappingEntry entry in KeyModifierMapping)
+                {
+                    int value = keyboardState.IsPressed(entry.TargetKey) ? 1 : 0;
+
+                    hidKeyboard.Modifier |= value << entry.Target;
+                }
+
+                return hidKeyboard;
+            }
+
+            return null;
+        }
+
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                _gamepad?.Dispose();
+            }
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+    }
+}

Ryujinx.Input/HLE/NpadManager.cs

@@ -0,0 +1,222 @@
+using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Hid.Controller;
+using Ryujinx.Common.Configuration.Hid.Keyboard;
+using Ryujinx.Configuration;
+using Ryujinx.HLE.HOS;
+using Ryujinx.HLE.HOS.Services.Hid;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+
+using CemuHookClient = Ryujinx.Input.Motion.CemuHook.Client;
+
+namespace Ryujinx.Input.HLE
+{
+    public class NpadManager : IDisposable
+    {
+        private CemuHookClient _cemuHookClient;
+
+        private object _lock = new object();
+
+        private bool _blockInputUpdates;
+
+        private const int MaxControllers = 9;
+
+        private NpadController[] _controllers;
+
+        private readonly IGamepadDriver _keyboardDriver;
+        private readonly IGamepadDriver _gamepadDriver;
+
+        private bool _isDisposed;
+
+        private List<InputConfig> _inputConfig;
+
+        public NpadManager(IGamepadDriver keyboardDriver, IGamepadDriver gamepadDriver)
+        {
+            _controllers = new NpadController[MaxControllers];
+            _cemuHookClient = new CemuHookClient();
+
+            _keyboardDriver = keyboardDriver;
+            _gamepadDriver = gamepadDriver;
+            _inputConfig = ConfigurationState.Instance.Hid.InputConfig.Value;
+
+            _gamepadDriver.OnGamepadConnected += HandleOnGamepadConnected;
+            _gamepadDriver.OnGamepadDisconnected += HandleOnGamepadDisconnected;
+        }
+
+        private void HandleOnGamepadDisconnected(string obj)
+        {
+            // Force input reload
+            ReloadConfiguration(ConfigurationState.Instance.Hid.InputConfig.Value);
+        }
+
+        private void HandleOnGamepadConnected(string id)
+        {
+            // Force input reload
+            ReloadConfiguration(ConfigurationState.Instance.Hid.InputConfig.Value);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private bool DriverConfigurationUpdate(ref NpadController controller, InputConfig config)
+        {
+            IGamepadDriver targetDriver = _gamepadDriver;
+
+            if (config is StandardControllerInputConfig)
+            {
+                targetDriver = _gamepadDriver;
+            }
+            else if (config is StandardKeyboardInputConfig)
+            {
+                targetDriver = _keyboardDriver;
+            }
+
+            Debug.Assert(targetDriver != null, "Unknown input configuration!");
+
+            if (controller.GamepadDriver != targetDriver || controller.Id != config.Id)
+            {
+                return controller.UpdateDriverConfiguration(targetDriver, config);
+            }
+            else
+            {
+                return controller.GamepadDriver != null;
+            }
+        }
+
+        public void ReloadConfiguration(List<InputConfig> inputConfig)
+        {
+            lock (_lock)
+            {
+                for (int i = 0; i < _controllers.Length; i++)
+                {
+                    _controllers[i]?.Dispose();
+                    _controllers[i] = null;
+                }
+
+                foreach (InputConfig inputConfigEntry in inputConfig)
+                {
+                    NpadController controller = new NpadController(_cemuHookClient);
+
+                    bool isValid = DriverConfigurationUpdate(ref controller, inputConfigEntry);
+
+                    if (!isValid)
+                    {
+                        controller.Dispose();
+                    }
+                    else
+                    {
+                        _controllers[(int)inputConfigEntry.PlayerIndex] = controller;
+                    }
+                }
+
+                _inputConfig = inputConfig;
+
+                // Enforce an update of the property that will be updated by HLE.
+                // TODO: Move that in the input manager maybe?
+                ConfigurationState.Instance.Hid.InputConfig.Value = inputConfig;
+            }
+        }
+
+        public void UnblockInputUpdates()
+        {
+            lock (_lock)
+            {
+                _blockInputUpdates = false;
+            }
+        }
+
+        public void BlockInputUpdates()
+        {
+            lock (_lock)
+            {
+                _blockInputUpdates = true;
+            }
+        }
+
+        public void Update(Hid hleHid, TamperMachine tamperMachine)
+        {
+            lock (_lock)
+            {
+                List<GamepadInput> hleInputStates = new List<GamepadInput>();
+                List<SixAxisInput> hleMotionStates = new List<SixAxisInput>(NpadDevices.MaxControllers);
+
+                foreach (InputConfig inputConfig in _inputConfig)
+                {
+                    GamepadInput inputState = default;
+                    SixAxisInput motionState = default;
+
+                    NpadController controller = _controllers[(int)inputConfig.PlayerIndex];
+
+                    // Do we allow input updates and is a controller connected?
+                    if (!_blockInputUpdates && controller != null)
+                    {
+                        DriverConfigurationUpdate(ref controller, inputConfig);
+
+                        controller.UpdateUserConfiguration(inputConfig);
+                        controller.Update();
+
+                        inputState = controller.GetHLEInputState();
+
+                        inputState.Buttons |= hleHid.UpdateStickButtons(inputState.LStick, inputState.RStick);
+
+                        motionState = controller.GetHLEMotionState();
+                    }
+                    else
+                    {
+                        // Ensure that orientation isn't null
+                        motionState.Orientation = new float[9];
+                    }
+
+                    inputState.PlayerId = (Ryujinx.HLE.HOS.Services.Hid.PlayerIndex)inputConfig.PlayerIndex;
+                    motionState.PlayerId = (Ryujinx.HLE.HOS.Services.Hid.PlayerIndex)inputConfig.PlayerIndex;
+
+                    hleInputStates.Add(inputState);
+                    hleMotionStates.Add(motionState);
+
+                    if (ConfigurationState.Instance.Hid.EnableKeyboard)
+                    {
+                        KeyboardInput? hleKeyboardInput = controller.GetHLEKeyboardInput();
+
+                        if (hleKeyboardInput.HasValue)
+                        {
+                            hleHid.Keyboard.Update(hleKeyboardInput.Value);
+                        }
+                    }
+                }
+
+                hleHid.Npads.Update(hleInputStates);
+                hleHid.Npads.UpdateSixAxis(hleMotionStates);
+                tamperMachine.UpdateInput(hleInputStates);
+            }
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                lock (_lock)
+                {
+                    if (!_isDisposed)
+                    {
+                        _cemuHookClient.Dispose();
+
+                        _gamepadDriver.OnGamepadConnected -= HandleOnGamepadConnected;
+                        _gamepadDriver.OnGamepadDisconnected -= HandleOnGamepadDisconnected;
+
+                        for (int i = 0; i < _controllers.Length; i++)
+                        {
+                            _controllers[i]?.Dispose();
+                        }
+
+                        _isDisposed = true;
+                    }
+                }
+            }
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+    }
+}

Ryujinx.Input/IGamepad.cs

@@ -0,0 +1,122 @@
+using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Memory;
+using System;
+using System.Numerics;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// Represent an emulated gamepad.
+    /// </summary>
+    public interface IGamepad : IDisposable
+    {
+        /// <summary>
+        /// Features supported by the gamepad.
+        /// </summary>
+        GamepadFeaturesFlag Features { get; }
+
+        /// <summary>
+        /// Unique Id of the gamepad.
+        /// </summary>
+        string Id { get; }
+
+        /// <summary>
+        /// The name of the gamepad.
+        /// </summary>
+        string Name { get; }
+
+        /// <summary>
+        /// True if the gamepad is connected.
+        /// </summary>
+        bool IsConnected { get; }
+
+        /// <summary>
+        /// Check if a given input button is pressed on the gamepad.
+        /// </summary>
+        /// <param name="inputId">The button id</param>
+        /// <returns>True if the given button is pressed on the gamepad</returns>
+        bool IsPressed(GamepadButtonInputId inputId);
+
+        /// <summary>
+        /// Get the values of a given input joystick on the gamepad.
+        /// </summary>
+        /// <param name="inputId">The stick id</param>
+        /// <returns>The values of the given input joystick on the gamepad</returns>
+        (float, float) GetStick(StickInputId inputId);
+
+        /// <summary>
+        /// Get the values of a given motion sensors on the gamepad.
+        /// </summary>
+        /// <param name="inputId">The motion id</param>
+        /// <returns> The values of the given motion sensors on the gamepad.</returns>
+        Vector3 GetMotionData(MotionInputId inputId);
+
+        /// <summary>
+        /// Configure the threshold of the triggers on the gamepad.
+        /// </summary>
+        /// <param name="triggerThreshold">The threshold value for the triggers on the gamepad</param>
+        void SetTriggerThreshold(float triggerThreshold);
+
+        /// <summary>
+        /// Set the configuration of the gamepad.
+        /// </summary>
+        /// <remarks>This expect config to be in the format expected by the driver</remarks>
+        /// <param name="configuration">The configuration of the gamepad</param>
+        void SetConfiguration(InputConfig configuration);
+
+        /// <summary>
+        /// Starts a rumble effect on the gampead.
+        /// </summary>
+        /// <param name="lowFrequency">The intensity of the low frequency from 0.0f to 1.0f</param>
+        /// <param name="highFrequency">The intensity of the high frequency from 0.0f to 1.0f</param>
+        /// <param name="durationMs">The duration of the rumble effect in milliseconds.</param>
+        void Rumble(float lowFrequency, float highFrequency, uint durationMs);
+
+        /// <summary>
+        /// Get a snaphost of the state of the gamepad that is remapped with the informations from the <see cref="InputConfig"/> set via <see cref="SetConfiguration(InputConfig)"/>.
+        /// </summary>
+        /// <returns>A remapped snaphost of the state of the gamepad.</returns>
+        GamepadStateSnapshot GetMappedStateSnapshot();
+
+        /// <summary>
+        /// Get a snaphost of the state of the gamepad.
+        /// </summary>
+        /// <returns>A snaphost of the state of the gamepad.</returns>
+        GamepadStateSnapshot GetStateSnapshot();
+
+        /// <summary>
+        /// Get a snaphost of the state of a gamepad.
+        /// </summary>
+        /// <param name="gamepad">The gamepad to do a snapshot of</param>
+        /// <returns>A snaphost of the state of the gamepad.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        static GamepadStateSnapshot GetStateSnapshot(IGamepad gamepad)
+        {
+            // NOTE: Update Array size if JoystickInputId is changed.
+            Array3<Array2<float>> joysticksState = default;
+
+            for (StickInputId inputId = StickInputId.Left; inputId < StickInputId.Count; inputId++)
+            {
+                (float state0, float state1) = gamepad.GetStick(inputId);
+
+                Array2<float> state = default;
+
+                state[0] = state0;
+                state[1] = state1;
+
+                joysticksState[(int)inputId] = state;
+            }
+
+            // NOTE: Update Array size if GamepadInputId is changed.
+            Array28<bool> buttonsState = default;
+
+            for (GamepadButtonInputId inputId = GamepadButtonInputId.A; inputId < GamepadButtonInputId.Count; inputId++)
+            {
+                buttonsState[(int)inputId] = gamepad.IsPressed(inputId);
+            }
+
+            return new GamepadStateSnapshot(joysticksState, buttonsState);
+        }
+    }
+}

Ryujinx.Input/IGamepadDriver.cs

@@ -0,0 +1,37 @@
+using System;
+
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// Represent an emulated gamepad driver used to provide input in the emulator.
+    /// </summary>
+    public interface IGamepadDriver : IDisposable
+    {
+        /// <summary>
+        /// The name of the driver
+        /// </summary>
+        string DriverName { get; }
+
+        /// <summary>
+        /// The unique ids of the gamepads connected.
+        /// </summary>
+        ReadOnlySpan<string> GamepadsIds { get; }
+
+        /// <summary>
+        /// Event triggered when a gamepad is connected.
+        /// </summary>
+        event Action<string> OnGamepadConnected;
+
+        /// <summary>
+        /// Event triggered when a gamepad is disconnected.
+        /// </summary>
+        event Action<string> OnGamepadDisconnected;
+
+        /// <summary>
+        /// Open a gampad by its unique id.
+        /// </summary>
+        /// <param name="id">The unique id of the gamepad</param>
+        /// <returns>An instance of <see cref="IGamepad"/> associated to the gamepad id given or null if not found</returns>
+        IGamepad GetGamepad(string id);
+    }
+}

Ryujinx.Input/IKeyboard.cs

@@ -0,0 +1,41 @@
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// Represent an emulated keyboard.
+    /// </summary>
+    public interface IKeyboard : IGamepad
+    {
+        /// <summary>
+        /// Check if a given key is pressed on the keyboard.
+        /// </summary>
+        /// <param name="key">The key</param>
+        /// <returns>True if the given key is pressed on the keyboard</returns>
+        bool IsPressed(Key key);
+
+        /// <summary>
+        /// Get a snaphost of the state of the keyboard.
+        /// </summary>
+        /// <returns>A snaphost of the state of the keyboard.</returns>
+        KeyboardStateSnapshot GetKeyboardStateSnapshot();
+
+        /// <summary>
+        /// Get a snaphost of the state of a keyboard.
+        /// </summary>
+        /// <param name="keyboard">The keyboard to do a snapshot of</param>
+        /// <returns>A snaphost of the state of the keyboard.</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        static KeyboardStateSnapshot GetStateSnapshot(IKeyboard keyboard)
+        {
+            bool[] keysState = new bool[(int)Key.Count];
+
+            for (Key key = 0; key < Key.Count; key++)
+            {
+                keysState[(int)key] = keyboard.IsPressed(key);
+            }
+
+            return new KeyboardStateSnapshot(keysState);
+        }
+    }
+}

Ryujinx.Input/Key.cs

@@ -0,0 +1,142 @@
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// Represent a key from a keyboard.
+    /// </summary>
+    public enum Key
+    {
+        Unknown,
+        ShiftLeft,
+        ShiftRight,
+        ControlLeft,
+        ControlRight,
+        AltLeft,
+        AltRight,
+        WinLeft,
+        WinRight,
+        Menu,
+        F1,
+        F2,
+        F3,
+        F4,
+        F5,
+        F6,
+        F7,
+        F8,
+        F9,
+        F10,
+        F11,
+        F12,
+        F13,
+        F14,
+        F15,
+        F16,
+        F17,
+        F18,
+        F19,
+        F20,
+        F21,
+        F22,
+        F23,
+        F24,
+        F25,
+        F26,
+        F27,
+        F28,
+        F29,
+        F30,
+        F31,
+        F32,
+        F33,
+        F34,
+        F35,
+        Up,
+        Down,
+        Left,
+        Right,
+        Enter,
+        Escape,
+        Space,
+        Tab,
+        BackSpace,
+        Insert,
+        Delete,
+        PageUp,
+        PageDown,
+        Home,
+        End,
+        CapsLock,
+        ScrollLock,
+        PrintScreen,
+        Pause,
+        NumLock,
+        Clear,
+        Keypad0,
+        Keypad1,
+        Keypad2,
+        Keypad3,
+        Keypad4,
+        Keypad5,
+        Keypad6,
+        Keypad7,
+        Keypad8,
+        Keypad9,
+        KeypadDivide,
+        KeypadMultiply,
+        KeypadSubtract,
+        KeypadAdd,
+        KeypadDecimal,
+        KeypadEnter,
+        A,
+        B,
+        C,
+        D,
+        E,
+        F,
+        G,
+        H,
+        I,
+        J,
+        K,
+        L,
+        M,
+        N,
+        O,
+        P,
+        Q,
+        R,
+        S,
+        T,
+        U,
+        V,
+        W,
+        X,
+        Y,
+        Z,
+        Number0,
+        Number1,
+        Number2,
+        Number3,
+        Number4,
+        Number5,
+        Number6,
+        Number7,
+        Number8,
+        Number9,
+        Tilde,
+        Grave,
+        Minus,
+        Plus,
+        BracketLeft,
+        BracketRight,
+        Semicolon,
+        Quote,
+        Comma,
+        Period,
+        Slash,
+        BackSlash,
+        Unbound,
+
+        Count
+    }
+}

Ryujinx.Input/KeyboardStateSnapshot.cs

@@ -0,0 +1,29 @@
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// A snapshot of a <see cref="IKeyboard"/>.
+    /// </summary>
+    public class KeyboardStateSnapshot
+    {
+        private bool[] _keysState;
+
+        /// <summary>
+        /// Create a new <see cref="KeyboardStateSnapshot"/>.
+        /// </summary>
+        /// <param name="keysState">The keys state</param>
+        public KeyboardStateSnapshot(bool[] keysState)
+        {
+            _keysState = keysState;
+        }
+
+        /// <summary>
+        /// Check if a given key is pressed.
+        /// </summary>
+        /// <param name="key">The key</param>
+        /// <returns>True if the given key is pressed</returns>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public bool IsPressed(Key key) => _keysState[(int)key];
+    }
+}

Ryujinx.Input/Motion/CemuHook/Client.cs

@@ -0,0 +1,473 @@
+using Force.Crc32;
+using Ryujinx.Common;
+using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Hid.Controller;
+using Ryujinx.Common.Configuration.Hid.Controller.Motion;
+using Ryujinx.Common.Logging;
+using Ryujinx.Configuration;
+using Ryujinx.Input.Motion.CemuHook.Protocol;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Net;
+using System.Net.Sockets;
+using System.Numerics;
+using System.Threading.Tasks;
+
+namespace Ryujinx.Input.Motion.CemuHook
+{
+    public class Client : IDisposable
+    {
+        public const uint   Magic   = 0x43555344; // DSUC
+        public const ushort Version = 1001;
+
+        private bool _active;
+
+        private readonly Dictionary<int, IPEndPoint> _hosts;
+        private readonly Dictionary<int, Dictionary<int, MotionInput>> _motionData;
+        private readonly Dictionary<int, UdpClient> _clients;
+
+        private readonly bool[] _clientErrorStatus = new bool[Enum.GetValues(typeof(PlayerIndex)).Length];
+        private readonly long[] _clientRetryTimer  = new long[Enum.GetValues(typeof(PlayerIndex)).Length];
+
+        public Client()
+        {
+            _hosts      = new Dictionary<int, IPEndPoint>();
+            _motionData = new Dictionary<int, Dictionary<int, MotionInput>>();
+            _clients    = new Dictionary<int, UdpClient>();
+
+            CloseClients();
+        }
+
+        public void CloseClients()
+        {
+            _active = false;
+
+            lock (_clients)
+            {
+                foreach (var client in _clients)
+                {
+                    try
+                    {
+                        client.Value?.Dispose();
+                    }
+                    catch (SocketException socketException)
+                    {
+                        Logger.Warning?.PrintMsg(LogClass.Hid, $"Unable to dispose motion client. Error: {socketException.ErrorCode}");
+                    }
+                }
+
+                _hosts.Clear();
+                _clients.Clear();
+                _motionData.Clear();
+            }
+        }
+
+        public void RegisterClient(int player, string host, int port)
+        {
+            if (_clients.ContainsKey(player) || !CanConnect(player))
+            {
+                return;
+            }
+
+            lock (_clients)
+            {
+                if (_clients.ContainsKey(player) || !CanConnect(player))
+                {
+                    return;
+                }
+
+                UdpClient client = null;
+
+                try
+                {
+                    IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse(host), port);
+
+                    client = new UdpClient(host, port);
+
+                    _clients.Add(player, client);
+                    _hosts.Add(player, endPoint);
+
+                    _active = true;
+
+                    Task.Run(() =>
+                    {
+                        ReceiveLoop(player);
+                    });
+                }
+                catch (FormatException formatException)
+                {
+                    if (!_clientErrorStatus[player])
+                    {
+                        Logger.Warning?.PrintMsg(LogClass.Hid, $"Unable to connect to motion source at {host}:{port}. Error: {formatException.Message}");
+
+                        _clientErrorStatus[player] = true;
+                    }
+                }
+                catch (SocketException socketException)
+                {
+                    if (!_clientErrorStatus[player])
+                    {
+                        Logger.Warning?.PrintMsg(LogClass.Hid, $"Unable to connect to motion source at {host}:{port}. Error: {socketException.ErrorCode}");
+
+                        _clientErrorStatus[player] = true;
+                    }
+
+                    RemoveClient(player);
+
+                    client?.Dispose();
+
+                    SetRetryTimer(player);
+                }
+                catch (Exception exception)
+                {
+                    Logger.Warning?.PrintMsg(LogClass.Hid, $"Unable to register motion client. Error: {exception.Message}");
+
+                    _clientErrorStatus[player] = true;
+
+                    RemoveClient(player);
+
+                    client?.Dispose();
+
+                    SetRetryTimer(player);
+                }
+            }
+        }
+
+        public bool TryGetData(int player, int slot, out MotionInput input)
+        {
+            lock (_motionData)
+            {
+                if (_motionData.ContainsKey(player))
+                {
+                    if (_motionData[player].TryGetValue(slot, out input))
+                    {
+                        return true;
+                    }
+                }
+            }
+
+            input = null;
+
+            return false;
+        }
+
+        private void RemoveClient(int clientId)
+        {
+            _clients?.Remove(clientId);
+
+            _hosts?.Remove(clientId);
+        }
+
+        private void Send(byte[] data, int clientId)
+        {
+            if (_clients.TryGetValue(clientId, out UdpClient _client))
+            {
+                if (_client != null && _client.Client != null && _client.Client.Connected)
+                {
+                    try
+                    {
+                        _client?.Send(data, data.Length);
+                    }
+                    catch (SocketException socketException)
+                    {
+                        if (!_clientErrorStatus[clientId])
+                        {
+                            Logger.Warning?.PrintMsg(LogClass.Hid, $"Unable to send data request to motion source at {_client.Client.RemoteEndPoint}. Error: {socketException.ErrorCode}");
+                        }
+
+                        _clientErrorStatus[clientId] = true;
+
+                        RemoveClient(clientId);
+
+                        _client?.Dispose();
+
+                        SetRetryTimer(clientId);
+                    }
+                    catch (ObjectDisposedException)
+                    {
+                        _clientErrorStatus[clientId] = true;
+
+                        RemoveClient(clientId);
+
+                        _client?.Dispose();
+
+                        SetRetryTimer(clientId);
+                    }
+                }
+            }
+        }
+
+        private byte[] Receive(int clientId, int timeout = 0)
+        {
+            if (_hosts.TryGetValue(clientId, out IPEndPoint endPoint) && _clients.TryGetValue(clientId, out UdpClient _client))
+            {
+                if (_client != null && _client.Client != null && _client.Client.Connected)
+                {
+                    _client.Client.ReceiveTimeout = timeout;
+
+                    var result = _client?.Receive(ref endPoint);
+
+                    if (result.Length > 0)
+                    {
+                        _clientErrorStatus[clientId] = false;
+                    }
+
+                    return result;
+                }
+            }
+
+            throw new Exception($"Client {clientId} is not registered.");
+        }
+
+        private void SetRetryTimer(int clientId)
+        {
+            var elapsedMs = PerformanceCounter.ElapsedMilliseconds;
+
+            _clientRetryTimer[clientId] = elapsedMs;
+        }
+
+        private void ResetRetryTimer(int clientId)
+        {
+            _clientRetryTimer[clientId] = 0;
+        }
+
+        private bool CanConnect(int clientId)
+        {
+            return _clientRetryTimer[clientId] == 0 || PerformanceCounter.ElapsedMilliseconds - 5000 > _clientRetryTimer[clientId];
+        }
+
+        public void ReceiveLoop(int clientId)
+        {
+            if (_hosts.TryGetValue(clientId, out IPEndPoint endPoint) && _clients.TryGetValue(clientId, out UdpClient _client))
+            {
+                if (_client != null && _client.Client != null && _client.Client.Connected)
+                {
+                    try
+                    {
+                        while (_active)
+                        {
+                            byte[] data = Receive(clientId);
+
+                            if (data.Length == 0)
+                            {
+                                continue;
+                            }
+
+                            Task.Run(() => HandleResponse(data, clientId));
+                        }
+                    }
+                    catch (SocketException socketException)
+                    {
+                        if (!_clientErrorStatus[clientId])
+                        {
+                            Logger.Warning?.PrintMsg(LogClass.Hid, $"Unable to receive data from motion source at {endPoint}. Error: {socketException.ErrorCode}");
+                        }
+
+                        _clientErrorStatus[clientId] = true;
+
+                        RemoveClient(clientId);
+
+                        _client?.Dispose();
+
+                        SetRetryTimer(clientId);
+                    }
+                    catch (ObjectDisposedException)
+                    {
+                        _clientErrorStatus[clientId] = true;
+
+                        RemoveClient(clientId);
+
+                        _client?.Dispose();
+
+                        SetRetryTimer(clientId);
+                    }
+                }
+            }
+        }
+
+        public void HandleResponse(byte[] data, int clientId)
+        {
+            ResetRetryTimer(clientId);
+
+            MessageType type = (MessageType)BitConverter.ToUInt32(data.AsSpan().Slice(16, 4));
+
+            data = data.AsSpan()[16..].ToArray();
+
+            using MemoryStream stream = new MemoryStream(data);
+            using BinaryReader reader = new BinaryReader(stream);
+
+            switch (type)
+            {
+                case MessageType.Protocol:
+                    break;
+                case MessageType.Info:
+                    ControllerInfoResponse contollerInfo = reader.ReadStruct<ControllerInfoResponse>();
+                    break;
+                case MessageType.Data:
+                    ControllerDataResponse inputData = reader.ReadStruct<ControllerDataResponse>();
+
+                    Vector3 accelerometer = new Vector3()
+                    {
+                        X = -inputData.AccelerometerX,
+                        Y = inputData.AccelerometerZ,
+                        Z = -inputData.AccelerometerY
+                    };
+
+                    Vector3 gyroscrope = new Vector3()
+                    {
+                        X = inputData.GyroscopePitch,
+                        Y = inputData.GyroscopeRoll,
+                        Z = -inputData.GyroscopeYaw
+                    };
+
+                    ulong timestamp = inputData.MotionTimestamp;
+
+                    InputConfig config = ConfigurationState.Instance.Hid.InputConfig.Value.Find(x => x.PlayerIndex == (PlayerIndex)clientId);
+
+                    lock (_motionData)
+                    {
+                        // Sanity check the configuration state and remove client if needed if needed.
+                        if (config is StandardControllerInputConfig controllerConfig &&
+                            controllerConfig.Motion.EnableMotion &&
+                            controllerConfig.Motion.MotionBackend == MotionInputBackendType.CemuHook &&
+                            controllerConfig.Motion is CemuHookMotionConfigController cemuHookConfig)
+                        {
+                            int slot = inputData.Shared.Slot;
+
+                            if (_motionData.ContainsKey(clientId))
+                            {
+                                if (_motionData[clientId].ContainsKey(slot))
+                                {
+                                    MotionInput previousData = _motionData[clientId][slot];
+
+                                    previousData.Update(accelerometer, gyroscrope, timestamp, cemuHookConfig.Sensitivity, (float)cemuHookConfig.GyroDeadzone);
+                                }
+                                else
+                                {
+                                    MotionInput input = new MotionInput();
+
+                                    input.Update(accelerometer, gyroscrope, timestamp, cemuHookConfig.Sensitivity, (float)cemuHookConfig.GyroDeadzone);
+
+                                    _motionData[clientId].Add(slot, input);
+                                }
+                            }
+                            else
+                            {
+                                MotionInput input = new MotionInput();
+
+                                input.Update(accelerometer, gyroscrope, timestamp, cemuHookConfig.Sensitivity, (float)cemuHookConfig.GyroDeadzone);
+
+                                _motionData.Add(clientId, new Dictionary<int, MotionInput>() { { slot, input } });
+                            }
+                        }
+                        else
+                        {
+                            RemoveClient(clientId);
+                        }
+                    }
+                    break;
+            }
+        }
+
+        public void RequestInfo(int clientId, int slot)
+        {
+            if (!_active)
+            {
+                return;
+            }
+
+            Header header = GenerateHeader(clientId);
+
+            using (MemoryStream stream = new MemoryStream())
+            using (BinaryWriter writer = new BinaryWriter(stream))
+            {
+                writer.WriteStruct(header);
+
+                ControllerInfoRequest request = new ControllerInfoRequest()
+                {
+                    Type       = MessageType.Info,
+                    PortsCount = 4
+                };
+
+                request.PortIndices[0] = (byte)slot;
+
+                writer.WriteStruct(request);
+
+                header.Length = (ushort)(stream.Length - 16);
+
+                writer.Seek(6, SeekOrigin.Begin);
+                writer.Write(header.Length);
+
+                header.Crc32 = Crc32Algorithm.Compute(stream.ToArray());
+
+                writer.Seek(8, SeekOrigin.Begin);
+                writer.Write(header.Crc32);
+
+                byte[] data = stream.ToArray();
+
+                Send(data, clientId);
+            }
+        }
+
+        public unsafe void RequestData(int clientId, int slot)
+        {
+            if (!_active)
+            {
+                return;
+            }
+
+            Header header = GenerateHeader(clientId);
+
+            using (MemoryStream stream = new MemoryStream())
+            using (BinaryWriter writer = new BinaryWriter(stream))
+            {
+                writer.WriteStruct(header);
+
+                ControllerDataRequest request = new ControllerDataRequest()
+                {
+                    Type           = MessageType.Data,
+                    Slot           = (byte)slot,
+                    SubscriberType = SubscriberType.Slot
+                };
+
+                writer.WriteStruct(request);
+
+                header.Length = (ushort)(stream.Length - 16);
+
+                writer.Seek(6, SeekOrigin.Begin);
+                writer.Write(header.Length);
+
+                header.Crc32 = Crc32Algorithm.Compute(stream.ToArray());
+
+                writer.Seek(8, SeekOrigin.Begin);
+                writer.Write(header.Crc32);
+
+                byte[] data = stream.ToArray();
+
+                Send(data, clientId);
+            }
+        }
+
+        private Header GenerateHeader(int clientId)
+        {
+            Header header = new Header()
+            {
+                Id          = (uint)clientId,
+                MagicString = Magic,
+                Version     = Version,
+                Length      = 0,
+                Crc32       = 0
+            };
+
+            return header;
+        }
+
+        public void Dispose()
+        {
+            _active = false;
+
+            CloseClients();
+        }
+    }
+}

Ryujinx.Input/Motion/CemuHook/Protocol/ControllerData.cs

@@ -0,0 +1,51 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Input.Motion.CemuHook.Protocol
+{
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    struct ControllerDataRequest
+    {
+        public MessageType    Type;
+        public SubscriberType SubscriberType;
+        public byte           Slot;
+
+        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
+        public byte[] MacAddress;
+    }
+
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct ControllerDataResponse
+    {
+        public SharedResponse Shared;
+        public byte           Connected;
+        public uint           PacketId;
+        public byte           ExtraButtons;
+        public byte           MainButtons;
+        public ushort         PSExtraInput;
+        public ushort         LeftStickXY;
+        public ushort         RightStickXY;
+        public uint           DPadAnalog;
+        public ulong          MainButtonsAnalog;
+
+        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
+        public byte[] Touch1;
+
+        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
+        public byte[] Touch2;
+
+        public ulong MotionTimestamp;
+        public float AccelerometerX;
+        public float AccelerometerY;
+        public float AccelerometerZ;
+        public float GyroscopePitch;
+        public float GyroscopeYaw;
+        public float GyroscopeRoll;
+    }
+
+    enum SubscriberType : byte
+    {
+        All,
+        Slot,
+        Mac
+    }
+}

Ryujinx.Input/Motion/CemuHook/Protocol/ControllerInfo.cs

@@ -0,0 +1,21 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Input.Motion.CemuHook.Protocol
+{
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct ControllerInfoResponse
+    {
+        public  SharedResponse Shared;
+        private byte           _zero;
+    }
+
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct ControllerInfoRequest
+    {
+        public MessageType Type;
+        public int         PortsCount;
+
+        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
+        public byte[] PortIndices;
+    }
+}

Ryujinx.Input/Motion/CemuHook/Protocol/Header.cs

@@ -0,0 +1,14 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Input.Motion.CemuHook.Protocol
+{
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct Header
+    {
+        public uint   MagicString;
+        public ushort Version;
+        public ushort Length;
+        public uint   Crc32;
+        public uint   Id;
+    }
+}

Ryujinx.Input/Motion/CemuHook/Protocol/MessageType.cs

@@ -0,0 +1,9 @@
+namespace Ryujinx.Input.Motion.CemuHook.Protocol
+{
+    public enum MessageType : uint
+    {
+        Protocol = 0x100000,
+        Info,
+        Data
+    }
+}

Ryujinx.Input/Motion/CemuHook/Protocol/SharedResponse.cs

@@ -0,0 +1,51 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Input.Motion.CemuHook.Protocol
+{
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct SharedResponse
+    {
+        public MessageType     Type;
+        public byte            Slot;
+        public SlotState       State;
+        public DeviceModelType ModelType;
+        public ConnectionType  ConnectionType;
+
+        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
+        public byte[]        MacAddress;
+        public BatteryStatus BatteryStatus;
+    }
+
+    public enum SlotState : byte
+    {
+        Disconnected,
+        Reserved,
+        Connected
+    }
+
+    public enum DeviceModelType : byte
+    {
+        None,
+        PartialGyro,
+        FullGyro
+    }
+
+    public enum ConnectionType : byte
+    {
+        None,
+        USB,
+        Bluetooth
+    }
+
+    public enum BatteryStatus : byte
+    {
+        NA,
+        Dying,
+        Low,
+        Medium,
+        High,
+        Full,
+        Charging,
+        Charged
+    }
+}

Ryujinx.Input/Motion/MotionInput.cs

@@ -0,0 +1,86 @@
+using Ryujinx.Input.Motion;
+using System;
+using System.Numerics;
+
+namespace Ryujinx.Input
+{
+    public class MotionInput
+    {
+        public ulong   TimeStamp     { get; set; }
+        public Vector3 Accelerometer { get; set; }
+        public Vector3 Gyroscrope    { get; set; }
+        public Vector3 Rotation      { get; set; }
+
+        private readonly MotionSensorFilter _filter;
+        private int _calibrationFrame = 0;
+
+        public MotionInput()
+        {
+            TimeStamp     = 0;
+            Accelerometer = new Vector3();
+            Gyroscrope    = new Vector3();
+            Rotation      = new Vector3();
+
+            // TODO: RE the correct filter.
+            _filter = new MotionSensorFilter(0f);
+        }
+
+        public void Update(Vector3 accel, Vector3 gyro, ulong timestamp, int sensitivity, float deadzone)
+        {
+            if (TimeStamp != 0)
+            {
+                if (gyro.Length() <= 1f && accel.Length() >= 0.8f && accel.Z >= 0.8f)
+                {
+                    _calibrationFrame++;
+
+                    if (_calibrationFrame >= 90)
+                    {
+                        gyro = Vector3.Zero;
+
+                        Rotation = Vector3.Zero;
+
+                        _filter.Reset();
+
+                        _calibrationFrame = 0;
+                    }
+                }
+                else
+                {
+                    _calibrationFrame = 0;
+                }
+
+                Accelerometer = -accel;
+
+                if (gyro.Length() < deadzone)
+                {
+                    gyro = Vector3.Zero;
+                }
+
+                gyro *= (sensitivity / 100f);
+
+                Gyroscrope = gyro;
+
+                float deltaTime = MathF.Abs((long)(timestamp - TimeStamp) / 1000000f);
+
+                Vector3 deltaGyro = gyro * deltaTime;
+
+                Rotation += deltaGyro;
+
+                _filter.SamplePeriod = deltaTime;
+                _filter.Update(accel, DegreeToRad(gyro));
+            }
+
+            TimeStamp = timestamp;
+        }
+
+        public Matrix4x4 GetOrientation()
+        {
+            return Matrix4x4.CreateFromQuaternion(_filter.Quaternion);
+        }
+
+        private static Vector3 DegreeToRad(Vector3 degree)
+        {
+            return degree * (MathF.PI / 180);
+        }
+    }
+}

Ryujinx.Input/Motion/MotionSensorFilter.cs

@@ -0,0 +1,162 @@
+using System.Numerics;
+
+namespace Ryujinx.Input.Motion
+{
+    // MahonyAHRS class. Madgwick's implementation of Mayhony's AHRS algorithm.
+    // See: https://x-io.co.uk/open-source-imu-and-ahrs-algorithms/
+    // Based on: https://github.com/xioTechnologies/Open-Source-AHRS-With-x-IMU/blob/master/x-IMU%20IMU%20and%20AHRS%20Algorithms/x-IMU%20IMU%20and%20AHRS%20Algorithms/AHRS/MahonyAHRS.cs
+    class MotionSensorFilter
+    {
+        /// <summary>
+        /// Sample rate coefficient.
+        /// </summary>
+        public const float SampleRateCoefficient = 0.45f;
+
+        /// <summary>
+        /// Gets or sets the sample period.
+        /// </summary>
+        public float SamplePeriod { get; set; }
+
+        /// <summary>
+        /// Gets or sets the algorithm proportional gain.
+        /// </summary>
+        public float Kp { get; set; }
+
+        /// <summary>
+        /// Gets or sets the algorithm integral gain.
+        /// </summary>
+        public float Ki { get; set; }
+
+        /// <summary>
+        /// Gets the Quaternion output.
+        /// </summary>
+        public Quaternion Quaternion { get; private set; }
+
+        /// <summary>
+        /// Integral error.
+        /// </summary>
+        private Vector3 _intergralError;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MotionSensorFilter"/> class.
+        /// </summary>
+        /// <param name="samplePeriod">
+        /// Sample period.
+        /// </param>
+        public MotionSensorFilter(float samplePeriod) : this(samplePeriod, 1f, 0f) { }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MotionSensorFilter"/> class.
+        /// </summary>
+        /// <param name="samplePeriod">
+        /// Sample period.
+        /// </param>
+        /// <param name="kp">
+        /// Algorithm proportional gain.
+        /// </param>
+        public MotionSensorFilter(float samplePeriod, float kp) : this(samplePeriod, kp, 0f) { }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MotionSensorFilter"/> class.
+        /// </summary>
+        /// <param name="samplePeriod">
+        /// Sample period.
+        /// </param>
+        /// <param name="kp">
+        /// Algorithm proportional gain.
+        /// </param>
+        /// <param name="ki">
+        /// Algorithm integral gain.
+        /// </param>
+        public MotionSensorFilter(float samplePeriod, float kp, float ki)
+        {
+            SamplePeriod = samplePeriod;
+            Kp = kp;
+            Ki = ki;
+
+            Reset();
+
+            _intergralError = new Vector3();
+        }
+
+        /// <summary>
+        /// Algorithm IMU update method. Requires only gyroscope and accelerometer data.
+        /// </summary>
+        /// <param name="accel">
+        /// Accelerometer measurement in any calibrated units.
+        /// </param>
+        /// <param name="gyro">
+        /// Gyroscope measurement in radians.
+        /// </param>
+        public void Update(Vector3 accel, Vector3 gyro)
+        {
+            // Normalise accelerometer measurement.
+            float norm = 1f / accel.Length();
+
+            if (!float.IsFinite(norm))
+            {
+                return;
+            }
+
+            accel *= norm;
+
+            float q2 = Quaternion.X;
+            float q3 = Quaternion.Y;
+            float q4 = Quaternion.Z;
+            float q1 = Quaternion.W;
+
+            // Estimated direction of gravity.
+            Vector3 gravity = new Vector3()
+            {
+                X = 2f * (q2 * q4 - q1 * q3),
+                Y = 2f * (q1 * q2 + q3 * q4),
+                Z = q1 * q1 - q2 * q2 - q3 * q3 + q4 * q4
+            };
+
+            // Error is cross product between estimated direction and measured direction of gravity.
+            Vector3 error = new Vector3()
+            {
+                X = accel.Y * gravity.Z - accel.Z * gravity.Y,
+                Y = accel.Z * gravity.X - accel.X * gravity.Z,
+                Z = accel.X * gravity.Y - accel.Y * gravity.X
+            };
+
+            if (Ki > 0f)
+            {
+                _intergralError += error; // Accumulate integral error.
+            }
+            else
+            {
+                _intergralError = Vector3.Zero; // Prevent integral wind up.
+            }
+
+            // Apply feedback terms.
+            gyro += (Kp * error) + (Ki * _intergralError);
+
+            // Integrate rate of change of quaternion.
+            Vector3 delta = new Vector3(q2, q3, q4);
+
+            q1 += (-q2 * gyro.X - q3 * gyro.Y - q4 * gyro.Z) * (SampleRateCoefficient * SamplePeriod);
+            q2 += (q1 * gyro.X + delta.Y * gyro.Z - delta.Z * gyro.Y) * (SampleRateCoefficient * SamplePeriod);
+            q3 += (q1 * gyro.Y - delta.X * gyro.Z + delta.Z * gyro.X) * (SampleRateCoefficient * SamplePeriod);
+            q4 += (q1 * gyro.Z + delta.X * gyro.Y - delta.Y * gyro.X) * (SampleRateCoefficient * SamplePeriod);
+
+            // Normalise quaternion.
+            Quaternion quaternion = new Quaternion(q2, q3, q4, q1);
+
+            norm = 1f / quaternion.Length();
+
+            if (!float.IsFinite(norm))
+            {
+                return;
+            }
+
+            Quaternion = quaternion * norm;
+        }
+
+        public void Reset()
+        {
+            Quaternion = Quaternion.Identity;
+        }
+    }
+}

Ryujinx.Input/MotionInputId.cs

@@ -0,0 +1,25 @@
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// Represent a motion sensor on a gamepad.
+    /// </summary>
+    public enum MotionInputId : byte
+    {
+        /// <summary>
+        /// Invalid.
+        /// </summary>
+        Invalid,
+
+        /// <summary>
+        /// Accelerometer.
+        /// </summary>
+        /// <remarks>Values are in m/s^2</remarks>
+        Accelerometer,
+
+        /// <summary>
+        /// Gyroscope.
+        /// </summary>
+        /// <remarks>Values are in degrees</remarks>
+        Gyroscope
+    }
+}

Ryujinx.Input/Ryujinx.Input.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Crc32.NET" Version="1.2.0" />
+  </ItemGroup>
+  
+  <ItemGroup>
+    <ProjectReference Include="..\Ryujinx.HLE\Ryujinx.HLE.csproj" />
+    <ProjectReference Include="..\Ryujinx.Common\Ryujinx.Common.csproj" />
+  </ItemGroup>
+
+</Project>

Ryujinx.Input/StickInputId.cs

@@ -0,0 +1,14 @@
+namespace Ryujinx.Input
+{
+    /// <summary>
+    /// Represent a joystick from a gamepad.
+    /// </summary>
+    public enum StickInputId : byte
+    {
+        Unbound,
+        Left,
+        Right,
+
+        Count
+    }
+}