early-access version 2177

README.md

@@ -1,7 +1,7 @@
 yuzu emulator early access
 =============
 
-This is the source code for early-access 2176.
+This is the source code for early-access 2177.
 
 ## Legal Notice
 

src/common/CMakeLists.txt

@@ -72,6 +72,7 @@ add_library(common STATIC
     hex_util.h
     host_memory.cpp
     host_memory.h
+    input.h
     intrusive_red_black_tree.h
     literals.h
     logging/backend.cpp

src/common/input.h

@@ -0,0 +1,304 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <utility>
+#include "common/logging/log.h"
+#include "common/param_package.h"
+
+namespace Common::Input {
+
+enum class InputType {
+    None,
+    Battery,
+    Button,
+    Stick,
+    Analog,
+    Trigger,
+    Motion,
+    Touch,
+    Color,
+    Vibration,
+    Nfc,
+    Ir,
+};
+
+enum class BatteryLevel : u32 {
+    None,
+    Empty,
+    Critical,
+    Low,
+    Medium,
+    Full,
+    Charging,
+};
+
+enum class PollingMode {
+    Active,
+    Pasive,
+    Camera,
+    NCF,
+    IR,
+};
+
+enum class VibrationError {
+    None,
+    NotSupported,
+    Disabled,
+    Unknown,
+};
+
+enum class PollingError {
+    None,
+    NotSupported,
+    Unknown,
+};
+
+// Hint for amplification curve to be used
+enum class VibrationAmplificationType {
+    Linear,
+    Exponential,
+};
+
+struct AnalogProperties {
+    float deadzone{};
+    float range{1.0f};
+    float threshold{0.5f};
+    float offset{};
+    bool inverted{};
+};
+
+struct AnalogStatus {
+    float value{};
+    float raw_value{};
+    AnalogProperties properties{};
+};
+
+struct ButtonStatus {
+    bool value{};
+    bool inverted{};
+    bool toggle{};
+    bool locked{};
+};
+
+using BatteryStatus = BatteryLevel;
+
+struct StickStatus {
+    AnalogStatus x{};
+    AnalogStatus y{};
+    bool left{};
+    bool right{};
+    bool up{};
+    bool down{};
+};
+
+struct TriggerStatus {
+    AnalogStatus analog{};
+    ButtonStatus pressed{};
+};
+
+struct MotionSensor {
+    AnalogStatus x{};
+    AnalogStatus y{};
+    AnalogStatus z{};
+};
+
+struct MotionStatus {
+    // Gyroscope vector measurement in radians/s.
+    MotionSensor gyro{};
+    // Acceleration vector measurement in G force
+    MotionSensor accel{};
+    // Time since last measurement in microseconds
+    u64 delta_timestamp{};
+    // Request to update after reading the value
+    bool force_update{};
+};
+
+struct TouchStatus {
+    ButtonStatus pressed{};
+    AnalogStatus x{};
+    AnalogStatus y{};
+    int id{};
+};
+
+struct BodyColorStatus {
+    u32 body{};
+    u32 buttons{};
+};
+
+struct VibrationStatus {
+    f32 low_amplitude{};
+    f32 low_frequency{};
+    f32 high_amplitude{};
+    f32 high_frequency{};
+    VibrationAmplificationType type;
+};
+
+struct LedStatus {
+    bool led_1{};
+    bool led_2{};
+    bool led_3{};
+    bool led_4{};
+};
+
+struct CallbackStatus {
+    InputType type{InputType::None};
+    ButtonStatus button_status{};
+    StickStatus stick_status{};
+    AnalogStatus analog_status{};
+    TriggerStatus trigger_status{};
+    MotionStatus motion_status{};
+    TouchStatus touch_status{};
+    BodyColorStatus color_status{};
+    BatteryStatus battery_status{};
+    VibrationStatus vibration_status{};
+};
+
+struct InputCallback {
+    std::function<void(CallbackStatus)> on_change;
+};
+
+/// An abstract class template for an input device (a button, an analog input, etc.).
+class InputDevice {
+public:
+    virtual ~InputDevice() = default;
+
+    // Request input device to update if necessary
+    virtual void SoftUpdate() {
+        return;
+    }
+
+    // Force input device to update data regarless of the current state
+    virtual void ForceUpdate() {
+        return;
+    }
+
+    void SetCallback(InputCallback callback_) {
+        callback = std::move(callback_);
+    }
+
+    void TriggerOnChange(CallbackStatus status) {
+        if (callback.on_change) {
+            callback.on_change(status);
+        }
+    }
+
+private:
+    InputCallback callback;
+};
+
+/// An abstract class template for an output device (rumble, LED pattern, polling mode).
+class OutputDevice {
+public:
+    virtual ~OutputDevice() = default;
+
+    virtual void SetLED([[maybe_unused]] LedStatus led_status) {
+        return;
+    }
+
+    virtual VibrationError SetVibration([[maybe_unused]] VibrationStatus vibration_status) {
+        return VibrationError::NotSupported;
+    }
+
+    virtual PollingError SetPollingMode([[maybe_unused]] PollingMode polling_mode) {
+        return PollingError::NotSupported;
+    }
+};
+
+/// An abstract class template for a factory that can create input devices.
+template <typename InputDeviceType>
+class Factory {
+public:
+    virtual ~Factory() = default;
+    virtual std::unique_ptr<InputDeviceType> Create(const Common::ParamPackage&) = 0;
+};
+
+namespace Impl {
+
+template <typename InputDeviceType>
+using FactoryListType = std::unordered_map<std::string, std::shared_ptr<Factory<InputDeviceType>>>;
+
+template <typename InputDeviceType>
+struct FactoryList {
+    static FactoryListType<InputDeviceType> list;
+};
+
+template <typename InputDeviceType>
+FactoryListType<InputDeviceType> FactoryList<InputDeviceType>::list;
+
+} // namespace Impl
+
+/**
+ * Registers an input device factory.
+ * @tparam InputDeviceType the type of input devices the factory can create
+ * @param name the name of the factory. Will be used to match the "engine" parameter when creating
+ *     a device
+ * @param factory the factory object to register
+ */
+template <typename InputDeviceType>
+void RegisterFactory(const std::string& name, std::shared_ptr<Factory<InputDeviceType>> factory) {
+    auto pair = std::make_pair(name, std::move(factory));
+    if (!Impl::FactoryList<InputDeviceType>::list.insert(std::move(pair)).second) {
+        LOG_ERROR(Input, "Factory '{}' already registered", name);
+    }
+}
+
+/**
+ * Unregisters an input device factory.
+ * @tparam InputDeviceType the type of input devices the factory can create
+ * @param name the name of the factory to unregister
+ */
+template <typename InputDeviceType>
+void UnregisterFactory(const std::string& name) {
+    if (Impl::FactoryList<InputDeviceType>::list.erase(name) == 0) {
+        LOG_ERROR(Input, "Factory '{}' not registered", name);
+    }
+}
+
+/**
+ * Create an input device from given paramters.
+ * @tparam InputDeviceType the type of input devices to create
+ * @param params a serialized ParamPackage string that contains all parameters for creating the
+ * device
+ */
+template <typename InputDeviceType>
+std::unique_ptr<InputDeviceType> CreateDeviceFromString(const std::string& params) {
+    const Common::ParamPackage package(params);
+    const std::string engine = package.Get("engine", "null");
+    const auto& factory_list = Impl::FactoryList<InputDeviceType>::list;
+    const auto pair = factory_list.find(engine);
+    if (pair == factory_list.end()) {
+        if (engine != "null") {
+            LOG_ERROR(Input, "Unknown engine name: {}", engine);
+        }
+        return std::make_unique<InputDeviceType>();
+    }
+    return pair->second->Create(package);
+}
+
+/**
+ * Create an input device from given paramters.
+ * @tparam InputDeviceType the type of input devices to create
+ * @param A ParamPackage that contains all parameters for creating the device
+ */
+template <typename InputDeviceType>
+std::unique_ptr<InputDeviceType> CreateDevice(const Common::ParamPackage package) {
+    const std::string engine = package.Get("engine", "null");
+    const auto& factory_list = Impl::FactoryList<InputDeviceType>::list;
+    const auto pair = factory_list.find(engine);
+    if (pair == factory_list.end()) {
+        if (engine != "null") {
+            LOG_ERROR(Input, "Unknown engine name: {}", engine);
+        }
+        return std::make_unique<InputDeviceType>();
+    }
+    return pair->second->Create(package);
+}
+
+} // namespace Common::Input

src/common/settings.h

@@ -6,7 +6,6 @@
 
 #include <algorithm>
 #include <array>
-#include <atomic>
 #include <map>
 #include <optional>
 #include <string>
@@ -567,12 +566,10 @@ struct Values {
     BasicSetting<bool> pause_tas_on_load{true, "pause_tas_on_load"};
     BasicSetting<bool> tas_enable{false, "tas_enable"};
     BasicSetting<bool> tas_loop{false, "tas_loop"};
-    BasicSetting<bool> tas_swap_controllers{true, "tas_swap_controllers"};
 
     BasicSetting<bool> mouse_panning{false, "mouse_panning"};
     BasicRangedSetting<u8> mouse_panning_sensitivity{10, 1, 100, "mouse_panning_sensitivity"};
     BasicSetting<bool> mouse_enabled{false, "mouse_enabled"};
-    std::string mouse_device;
     MouseButtonsRaw mouse_buttons;
 
     BasicSetting<bool> emulate_analog_keyboard{false, "emulate_analog_keyboard"};
@@ -592,8 +589,6 @@ struct Values {
     BasicSetting<int> touch_from_button_map_index{0, "touch_from_button_map"};
     std::vector<TouchFromButtonMap> touch_from_button_maps;
 
-    std::atomic_bool is_device_reload_pending{true};
-
     // Data Storage
     BasicSetting<bool> use_virtual_sd{true, "use_virtual_sd"};
     BasicSetting<bool> gamecard_inserted{false, "gamecard_inserted"};

src/common/settings_input.h

@@ -62,11 +62,22 @@ enum Values : int {
 
 constexpr int STICK_HID_BEGIN = LStick;
 constexpr int STICK_HID_END = NumAnalogs;
-constexpr int NUM_STICKS_HID = NumAnalogs;
 
 extern const std::array<const char*, NumAnalogs> mapping;
 } // namespace NativeAnalog
 
+namespace NativeTrigger {
+enum Values : int {
+    LTrigger,
+    RTrigger,
+
+    NumTriggers,
+};
+
+constexpr int TRIGGER_HID_BEGIN = LTrigger;
+constexpr int TRIGGER_HID_END = NumTriggers;
+} // namespace NativeTrigger
+
 namespace NativeVibration {
 enum Values : int {
     LeftVibrationDevice,

src/core/CMakeLists.txt

@@ -132,11 +132,23 @@ add_library(core STATIC
     frontend/emu_window.h
     frontend/framebuffer_layout.cpp
     frontend/framebuffer_layout.h
-    frontend/input_interpreter.cpp
-    frontend/input_interpreter.h
-    frontend/input.h
     hardware_interrupt_manager.cpp
     hardware_interrupt_manager.h
+    hid/emulated_console.cpp
+    hid/emulated_console.h
+    hid/emulated_controller.cpp
+    hid/emulated_controller.h
+    hid/emulated_devices.cpp
+    hid/emulated_devices.h
+    hid/hid_core.cpp
+    hid/hid_core.h
+    hid/hid_types.h
+    hid/input_converter.cpp
+    hid/input_converter.h
+    hid/input_interpreter.cpp
+    hid/input_interpreter.h
+    hid/motion_input.cpp
+    hid/motion_input.h
     hle/api_version.h
     hle/ipc.h
     hle/ipc_helpers.h
@@ -402,6 +414,7 @@ add_library(core STATIC
     hle/service/hid/hid.h
     hle/service/hid/irs.cpp
     hle/service/hid/irs.h
+    hle/service/hid/ring_lifo.h
     hle/service/hid/xcd.cpp
     hle/service/hid/xcd.h
     hle/service/hid/errors.h

src/core/core.cpp

@@ -29,6 +29,7 @@
 #include "core/file_sys/vfs_concat.h"
 #include "core/file_sys/vfs_real.h"
 #include "core/hardware_interrupt_manager.h"
+#include "core/hid/hid_core.h"
 #include "core/hle/kernel/k_client_port.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_scheduler.h"
@@ -130,7 +131,7 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
 
 struct System::Impl {
     explicit Impl(System& system)
-        : kernel{system}, fs_controller{system}, memory{system},
+        : kernel{system}, fs_controller{system}, memory{system}, hid_core{},
           cpu_manager{system}, reporter{system}, applet_manager{system}, time_manager{system} {}
 
     SystemResultStatus Run() {
@@ -395,6 +396,7 @@ struct System::Impl {
     std::unique_ptr<Hardware::InterruptManager> interrupt_manager;
     std::unique_ptr<Core::DeviceMemory> device_memory;
     Core::Memory::Memory memory;
+    Core::HID::HIDCore hid_core;
     CpuManager cpu_manager;
     std::atomic_bool is_powered_on{};
     bool exit_lock = false;
@@ -619,6 +621,14 @@ const Kernel::KernelCore& System::Kernel() const {
     return impl->kernel;
 }
 
+HID::HIDCore& System::HIDCore() {
+    return impl->hid_core;
+}
+
+const HID::HIDCore& System::HIDCore() const {
+    return impl->hid_core;
+}
+
 Timing::CoreTiming& System::CoreTiming() {
     return impl->core_timing;
 }
@@ -825,8 +835,6 @@ void System::ApplySettings() {
     if (IsPoweredOn()) {
         Renderer().RefreshBaseSettings();
     }
-
-    Service::HID::ReloadInputDevices();
 }
 
 } // namespace Core

src/core/core.h

@@ -89,6 +89,10 @@ namespace Core::Hardware {
 class InterruptManager;
 }
 
+namespace Core::HID {
+class HIDCore;
+}
+
 namespace Core {
 
 class ARM_Interface;
@@ -285,6 +289,12 @@ public:
     /// Provides a constant reference to the kernel instance.
     [[nodiscard]] const Kernel::KernelCore& Kernel() const;
 
+    /// Gets a mutable reference to the HID interface.
+    [[nodiscard]] HID::HIDCore& HIDCore();
+
+    /// Gets an immutable reference to the HID interface.
+    [[nodiscard]] const HID::HIDCore& HIDCore() const;
+
     /// Provides a reference to the internal PerfStats instance.
     [[nodiscard]] Core::PerfStats& GetPerfStats();
 

src/core/frontend/applets/controller.cpp

@@ -5,16 +5,15 @@
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/frontend/applets/controller.h"
-#include "core/hle/service/hid/controllers/npad.h"
-#include "core/hle/service/hid/hid.h"
-#include "core/hle/service/sm/sm.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 
 namespace Core::Frontend {
 
 ControllerApplet::~ControllerApplet() = default;
 
-DefaultControllerApplet::DefaultControllerApplet(Service::SM::ServiceManager& service_manager_)
-    : service_manager{service_manager_} {}
+DefaultControllerApplet::DefaultControllerApplet(HID::HIDCore& hid_core_) : hid_core{hid_core_} {}
 
 DefaultControllerApplet::~DefaultControllerApplet() = default;
 
@@ -22,24 +21,20 @@ void DefaultControllerApplet::ReconfigureControllers(std::function<void()> callb
                                                      const ControllerParameters& parameters) const {
     LOG_INFO(Service_HID, "called, deducing the best configuration based on the given parameters!");
 
-    auto& npad =
-        service_manager.GetService<Service::HID::Hid>("hid")
-            ->GetAppletResource()
-            ->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad);
-
-    auto& players = Settings::values.players.GetValue();
-
     const std::size_t min_supported_players =
         parameters.enable_single_mode ? 1 : parameters.min_players;
 
     // Disconnect Handheld first.
-    npad.DisconnectNpadAtIndex(8);
+    auto* handheld = hid_core.GetEmulatedController(Core::HID::NpadIdType::Handheld);
+    handheld->Disconnect();
 
     // Deduce the best configuration based on the input parameters.
-    for (std::size_t index = 0; index < players.size() - 2; ++index) {
+    for (std::size_t index = 0; index < hid_core.available_controllers - 2; ++index) {
+        auto* controller = hid_core.GetEmulatedControllerByIndex(index);
+
         // First, disconnect all controllers regardless of the value of keep_controllers_connected.
         // This makes it easy to connect the desired controllers.
-        npad.DisconnectNpadAtIndex(index);
+        controller->Disconnect();
 
         // Only connect the minimum number of required players.
         if (index >= min_supported_players) {
@@ -49,27 +44,27 @@ void DefaultControllerApplet::ReconfigureControllers(std::function<void()> callb
         // Connect controllers based on the following priority list from highest to lowest priority:
         // Pro Controller -> Dual Joycons -> Left Joycon/Right Joycon -> Handheld
         if (parameters.allow_pro_controller) {
-            npad.AddNewControllerAt(
-                npad.MapSettingsTypeToNPad(Settings::ControllerType::ProController), index);
+            controller->SetNpadType(Core::HID::NpadType::ProController);
+            controller->Connect();
         } else if (parameters.allow_dual_joycons) {
-            npad.AddNewControllerAt(
-                npad.MapSettingsTypeToNPad(Settings::ControllerType::DualJoyconDetached), index);
+            controller->SetNpadType(Core::HID::NpadType::JoyconDual);
+            controller->Connect();
         } else if (parameters.allow_left_joycon && parameters.allow_right_joycon) {
             // Assign left joycons to even player indices and right joycons to odd player indices.
             // We do this since Captain Toad Treasure Tracker expects a left joycon for Player 1 and
             // a right Joycon for Player 2 in 2 Player Assist mode.
             if (index % 2 == 0) {
-                npad.AddNewControllerAt(
-                    npad.MapSettingsTypeToNPad(Settings::ControllerType::LeftJoycon), index);
+                controller->SetNpadType(Core::HID::NpadType::JoyconLeft);
+                controller->Connect();
             } else {
-                npad.AddNewControllerAt(
-                    npad.MapSettingsTypeToNPad(Settings::ControllerType::RightJoycon), index);
+                controller->SetNpadType(Core::HID::NpadType::JoyconRight);
+                controller->Connect();
             }
         } else if (index == 0 && parameters.enable_single_mode && parameters.allow_handheld &&
                    !Settings::values.use_docked_mode.GetValue()) {
             // We should *never* reach here under any normal circumstances.
-            npad.AddNewControllerAt(npad.MapSettingsTypeToNPad(Settings::ControllerType::Handheld),
-                                    index);
+            controller->SetNpadType(Core::HID::NpadType::Handheld);
+            controller->Connect();
         } else {
             UNREACHABLE_MSG("Unable to add a new controller based on the given parameters!");
         }

src/core/frontend/applets/controller.h

@@ -8,8 +8,8 @@
 
 #include "common/common_types.h"
 
-namespace Service::SM {
-class ServiceManager;
+namespace Core::HID {
+class HIDCore;
 }
 
 namespace Core::Frontend {
@@ -44,14 +44,14 @@ public:
 
 class DefaultControllerApplet final : public ControllerApplet {
 public:
-    explicit DefaultControllerApplet(Service::SM::ServiceManager& service_manager_);
+    explicit DefaultControllerApplet(HID::HIDCore& hid_core_);
     ~DefaultControllerApplet() override;
 
     void ReconfigureControllers(std::function<void()> callback,
                                 const ControllerParameters& parameters) const override;
 
 private:
-    Service::SM::ServiceManager& service_manager;
+    HID::HIDCore& hid_core;
 };
 
 } // namespace Core::Frontend

src/core/frontend/emu_window.cpp

@@ -4,66 +4,31 @@
 
 #include <cmath>
 #include <mutex>
-#include "common/settings.h"
 #include "core/frontend/emu_window.h"
-#include "core/frontend/input.h"
 
 namespace Core::Frontend {
 
 GraphicsContext::~GraphicsContext() = default;
 
-class EmuWindow::TouchState : public Input::Factory<Input::TouchDevice>,
-                              public std::enable_shared_from_this<TouchState> {
-public:
-    std::unique_ptr<Input::TouchDevice> Create(const Common::ParamPackage&) override {
-        return std::make_unique<Device>(shared_from_this());
-    }
-
-    std::mutex mutex;
-
-    Input::TouchStatus status;
-
-private:
-    class Device : public Input::TouchDevice {
-    public:
-        explicit Device(std::weak_ptr<TouchState>&& touch_state_) : touch_state(touch_state_) {}
-        Input::TouchStatus GetStatus() const override {
-            if (auto state = touch_state.lock()) {
-                std::lock_guard guard{state->mutex};
-                return state->status;
-            }
-            return {};
-        }
-
-    private:
-        std::weak_ptr<TouchState> touch_state;
-    };
-};
-
 EmuWindow::EmuWindow() {
     // TODO: Find a better place to set this.
     config.min_client_area_size =
         std::make_pair(Layout::MinimumSize::Width, Layout::MinimumSize::Height);
     active_config = config;
-    touch_state = std::make_shared<TouchState>();
-    Input::RegisterFactory<Input::TouchDevice>("emu_window", touch_state);
 }
 
-EmuWindow::~EmuWindow() {
-    Input::UnregisterFactory<Input::TouchDevice>("emu_window");
-}
+EmuWindow::~EmuWindow() {}
 
-/**
- * Check if the given x/y coordinates are within the touchpad specified by the framebuffer layout
- * @param layout FramebufferLayout object describing the framebuffer size and screen positions
- * @param framebuffer_x Framebuffer x-coordinate to check
- * @param framebuffer_y Framebuffer y-coordinate to check
- * @return True if the coordinates are within the touchpad, otherwise false
- */
-static bool IsWithinTouchscreen(const Layout::FramebufferLayout& layout, u32 framebuffer_x,
-                                u32 framebuffer_y) {
-    return (framebuffer_y >= layout.screen.top && framebuffer_y < layout.screen.bottom &&
-            framebuffer_x >= layout.screen.left && framebuffer_x < layout.screen.right);
+std::pair<f32, f32> EmuWindow::MapToTouchScreen(u32 framebuffer_x, u32 framebuffer_y) const {
+    std::tie(framebuffer_x, framebuffer_y) = ClipToTouchScreen(framebuffer_x, framebuffer_y);
+    const float x =
+        static_cast<float>(framebuffer_x - framebuffer_layout.screen.left) /
+        static_cast<float>(framebuffer_layout.screen.right - framebuffer_layout.screen.left);
+    const float y =
+        static_cast<float>(framebuffer_y - framebuffer_layout.screen.top) /
+        static_cast<float>(framebuffer_layout.screen.bottom - framebuffer_layout.screen.top);
+
+    return std::make_pair(x, y);
 }
 
 std::pair<u32, u32> EmuWindow::ClipToTouchScreen(u32 new_x, u32 new_y) const {
@@ -76,49 +41,6 @@ std::pair<u32, u32> EmuWindow::ClipToTouchScreen(u32 new_x, u32 new_y) const {
     return std::make_pair(new_x, new_y);
 }
 
-void EmuWindow::TouchPressed(u32 framebuffer_x, u32 framebuffer_y, size_t id) {
-    if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y)) {
-        return;
-    }
-    if (id >= touch_state->status.size()) {
-        return;
-    }
-
-    std::lock_guard guard{touch_state->mutex};
-    const float x =
-        static_cast<float>(framebuffer_x - framebuffer_layout.screen.left) /
-        static_cast<float>(framebuffer_layout.screen.right - framebuffer_layout.screen.left);
-    const float y =
-        static_cast<float>(framebuffer_y - framebuffer_layout.screen.top) /
-        static_cast<float>(framebuffer_layout.screen.bottom - framebuffer_layout.screen.top);
-
-    touch_state->status[id] = std::make_tuple(x, y, true);
-}
-
-void EmuWindow::TouchReleased(size_t id) {
-    if (id >= touch_state->status.size()) {
-        return;
-    }
-    std::lock_guard guard{touch_state->mutex};
-    touch_state->status[id] = std::make_tuple(0.0f, 0.0f, false);
-}
-
-void EmuWindow::TouchMoved(u32 framebuffer_x, u32 framebuffer_y, size_t id) {
-    if (id >= touch_state->status.size()) {
-        return;
-    }
-
-    if (!std::get<2>(touch_state->status[id])) {
-        return;
-    }
-
-    if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y)) {
-        std::tie(framebuffer_x, framebuffer_y) = ClipToTouchScreen(framebuffer_x, framebuffer_y);
-    }
-
-    TouchPressed(framebuffer_x, framebuffer_y, id);
-}
-
 void EmuWindow::UpdateCurrentFramebufferLayout(u32 width, u32 height) {
     NotifyFramebufferLayoutChanged(Layout::DefaultFrameLayout(width, height));
 }

src/core/frontend/emu_window.h

@@ -113,28 +113,6 @@ public:
     /// Returns if window is shown (not minimized)
     virtual bool IsShown() const = 0;
 
-    /**
-     * Signal that a touch pressed event has occurred (e.g. mouse click pressed)
-     * @param framebuffer_x Framebuffer x-coordinate that was pressed
-     * @param framebuffer_y Framebuffer y-coordinate that was pressed
-     * @param id Touch event ID
-     */
-    void TouchPressed(u32 framebuffer_x, u32 framebuffer_y, size_t id);
-
-    /**
-     * Signal that a touch released event has occurred (e.g. mouse click released)
-     * @param id Touch event ID
-     */
-    void TouchReleased(size_t id);
-
-    /**
-     * Signal that a touch movement event has occurred (e.g. mouse was moved over the emu window)
-     * @param framebuffer_x Framebuffer x-coordinate
-     * @param framebuffer_y Framebuffer y-coordinate
-     * @param id Touch event ID
-     */
-    void TouchMoved(u32 framebuffer_x, u32 framebuffer_y, size_t id);
-
     /**
      * Returns currently active configuration.
      * @note Accesses to the returned object need not be consistent because it may be modified in
@@ -213,6 +191,11 @@ protected:
         client_area_height = size.second;
     }
 
+    /**
+     * Converts a screen postion into the equivalent touchscreen position.
+     */
+    std::pair<f32, f32> MapToTouchScreen(u32 framebuffer_x, u32 framebuffer_y) const;
+
     WindowSystemInfo window_info;
 
 private:
@@ -238,9 +221,6 @@ private:
     WindowConfig config;        ///< Internal configuration (changes pending for being applied in
                                 /// ProcessConfigurationChanges)
     WindowConfig active_config; ///< Internal active configuration
-
-    class TouchState;
-    std::shared_ptr<TouchState> touch_state;
 };
 
 } // namespace Core::Frontend

src/core/hid/emulated_console.cpp

@@ -0,0 +1,219 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "core/hid/emulated_console.h"
+#include "core/hid/input_converter.h"
+
+namespace Core::HID {
+EmulatedConsole::EmulatedConsole() = default;
+
+EmulatedConsole::~EmulatedConsole() = default;
+
+void EmulatedConsole::ReloadFromSettings() {
+    // Using first motion device from player 1. No need to assign a special config at the moment
+    const auto& player = Settings::values.players.GetValue()[0];
+    motion_params = Common::ParamPackage(player.motions[0]);
+
+    ReloadInput();
+}
+
+void EmulatedConsole::SetTouchParams() {
+    // TODO(german77): Support any number of fingers
+    std::size_t index = 0;
+
+    // Hardcode mouse, touchscreen and cemuhook parameters
+    touch_params[index++] = Common::ParamPackage{"engine:mouse,axis_x:10,axis_y:11,button:0"};
+    touch_params[index++] = Common::ParamPackage{"engine:touch,axis_x:0,axis_y:1,button:0"};
+    touch_params[index++] = Common::ParamPackage{"engine:touch,axis_x:2,axis_y:3,button:1"};
+    touch_params[index++] = Common::ParamPackage{"engine:cemuhookudp,axis_x:0,axis_y:1,button:0"};
+    touch_params[index++] = Common::ParamPackage{"engine:cemuhookudp,axis_x:2,axis_y:3,button:1"};
+
+    const auto button_index =
+        static_cast<u64>(Settings::values.touch_from_button_map_index.GetValue());
+    const auto& touch_buttons = Settings::values.touch_from_button_maps[button_index].buttons;
+
+    for (const auto& config_entry : touch_buttons) {
+        Common::ParamPackage params{config_entry};
+        Common::ParamPackage touch_button_params;
+        const int x = params.Get("x", 0);
+        const int y = params.Get("y", 0);
+        params.Erase("x");
+        params.Erase("y");
+        touch_button_params.Set("engine", "touch_from_button");
+        touch_button_params.Set("button", params.Serialize());
+        touch_button_params.Set("x", x);
+        touch_button_params.Set("y", y);
+        touch_button_params.Set("touch_id", static_cast<int>(index));
+        touch_params[index] = touch_button_params;
+        index++;
+        if (index >= touch_params.size()) {
+            return;
+        }
+    }
+}
+
+void EmulatedConsole::ReloadInput() {
+    SetTouchParams();
+    motion_devices = Common::Input::CreateDevice<Common::Input::InputDevice>(motion_params);
+    if (motion_devices) {
+        Common::Input::InputCallback motion_callback{
+            [this](Common::Input::CallbackStatus callback) { SetMotion(callback); }};
+        motion_devices->SetCallback(motion_callback);
+    }
+
+    std::size_t index = 0;
+    for (auto& touch_device : touch_devices) {
+        touch_device = Common::Input::CreateDevice<Common::Input::InputDevice>(touch_params[index]);
+        if (!touch_device) {
+            continue;
+        }
+        Common::Input::InputCallback touch_callback{
+            [this, index](Common::Input::CallbackStatus callback) { SetTouch(callback, index); }};
+        touch_device->SetCallback(touch_callback);
+        index++;
+    }
+}
+
+void EmulatedConsole::UnloadInput() {
+    motion_devices.reset();
+    for (auto& touch : touch_devices) {
+        touch.reset();
+    }
+}
+
+void EmulatedConsole::EnableConfiguration() {
+    is_configuring = true;
+    SaveCurrentConfig();
+}
+
+void EmulatedConsole::DisableConfiguration() {
+    is_configuring = false;
+}
+
+bool EmulatedConsole::IsConfiguring() const {
+    return is_configuring;
+}
+
+void EmulatedConsole::SaveCurrentConfig() {
+    if (!is_configuring) {
+        return;
+    }
+}
+
+void EmulatedConsole::RestoreConfig() {
+    if (!is_configuring) {
+        return;
+    }
+    ReloadFromSettings();
+}
+
+Common::ParamPackage EmulatedConsole::GetMotionParam() const {
+    return motion_params;
+}
+
+void EmulatedConsole::SetMotionParam(Common::ParamPackage param) {
+    motion_params = param;
+    ReloadInput();
+}
+
+void EmulatedConsole::SetMotion(Common::Input::CallbackStatus callback) {
+    std::lock_guard lock{mutex};
+    auto& raw_status = console.motion_values.raw_status;
+    auto& emulated = console.motion_values.emulated;
+
+    raw_status = TransformToMotion(callback);
+    emulated.SetAcceleration(Common::Vec3f{
+        raw_status.accel.x.value,
+        raw_status.accel.y.value,
+        raw_status.accel.z.value,
+    });
+    emulated.SetGyroscope(Common::Vec3f{
+        raw_status.gyro.x.value,
+        raw_status.gyro.y.value,
+        raw_status.gyro.z.value,
+    });
+    emulated.UpdateRotation(raw_status.delta_timestamp);
+    emulated.UpdateOrientation(raw_status.delta_timestamp);
+
+    if (is_configuring) {
+        TriggerOnChange(ConsoleTriggerType::Motion);
+        return;
+    }
+
+    auto& motion = console.motion_state;
+    motion.accel = emulated.GetAcceleration();
+    motion.gyro = emulated.GetGyroscope();
+    motion.rotation = emulated.GetGyroscope();
+    motion.orientation = emulated.GetOrientation();
+    motion.quaternion = emulated.GetQuaternion();
+    motion.is_at_rest = emulated.IsMoving(motion_sensitivity);
+
+    TriggerOnChange(ConsoleTriggerType::Motion);
+}
+
+void EmulatedConsole::SetTouch(Common::Input::CallbackStatus callback,
+                               [[maybe_unused]] std::size_t index) {
+    if (index >= console.touch_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+
+    console.touch_values[index] = TransformToTouch(callback);
+
+    if (is_configuring) {
+        TriggerOnChange(ConsoleTriggerType::Touch);
+        return;
+    }
+
+    // TODO(german77): Remap touch id in sequential order
+    console.touch_state[index] = {
+        .position = {console.touch_values[index].x.value, console.touch_values[index].y.value},
+        .id = static_cast<u32>(console.touch_values[index].id),
+        .pressed = console.touch_values[index].pressed.value,
+    };
+
+    TriggerOnChange(ConsoleTriggerType::Touch);
+}
+
+ConsoleMotionValues EmulatedConsole::GetMotionValues() const {
+    return console.motion_values;
+}
+
+TouchValues EmulatedConsole::GetTouchValues() const {
+    return console.touch_values;
+}
+
+ConsoleMotion EmulatedConsole::GetMotion() const {
+    return console.motion_state;
+}
+
+TouchFingerState EmulatedConsole::GetTouch() const {
+    return console.touch_state;
+}
+
+void EmulatedConsole::TriggerOnChange(ConsoleTriggerType type) {
+    for (const auto& poller_pair : callback_list) {
+        const ConsoleUpdateCallback& poller = poller_pair.second;
+        if (poller.on_change) {
+            poller.on_change(type);
+        }
+    }
+}
+
+int EmulatedConsole::SetCallback(ConsoleUpdateCallback update_callback) {
+    std::lock_guard lock{mutex};
+    callback_list.insert_or_assign(last_callback_key, update_callback);
+    return last_callback_key++;
+}
+
+void EmulatedConsole::DeleteCallback(int key) {
+    std::lock_guard lock{mutex};
+    const auto& iterator = callback_list.find(key);
+    if (iterator == callback_list.end()) {
+        LOG_ERROR(Input, "Tried to delete non-existent callback {}", key);
+        return;
+    }
+    callback_list.erase(iterator);
+}
+} // namespace Core::HID

src/core/hid/emulated_console.h

@@ -0,0 +1,189 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/point.h"
+#include "common/quaternion.h"
+#include "common/settings.h"
+#include "common/vector_math.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/motion_input.h"
+
+namespace Core::HID {
+
+struct ConsoleMotionInfo {
+    Common::Input::MotionStatus raw_status{};
+    MotionInput emulated{};
+};
+
+using ConsoleMotionDevices = std::unique_ptr<Common::Input::InputDevice>;
+using TouchDevices = std::array<std::unique_ptr<Common::Input::InputDevice>, 16>;
+
+using ConsoleMotionParams = Common::ParamPackage;
+using TouchParams = std::array<Common::ParamPackage, 16>;
+
+using ConsoleMotionValues = ConsoleMotionInfo;
+using TouchValues = std::array<Common::Input::TouchStatus, 16>;
+
+struct TouchFinger {
+    u64 last_touch{};
+    Common::Point<float> position{};
+    u32 id{};
+    TouchAttribute attribute{};
+    bool pressed{};
+};
+
+// Contains all motion related data that is used on the services
+struct ConsoleMotion {
+    Common::Vec3f accel{};
+    Common::Vec3f gyro{};
+    Common::Vec3f rotation{};
+    std::array<Common::Vec3f, 3> orientation{};
+    Common::Quaternion<f32> quaternion{};
+    bool is_at_rest{};
+};
+
+using TouchFingerState = std::array<TouchFinger, 16>;
+
+struct ConsoleStatus {
+    // Data from input_common
+    ConsoleMotionValues motion_values{};
+    TouchValues touch_values{};
+
+    // Data for HID services
+    ConsoleMotion motion_state{};
+    TouchFingerState touch_state{};
+};
+
+enum class ConsoleTriggerType {
+    Motion,
+    Touch,
+    All,
+};
+
+struct ConsoleUpdateCallback {
+    std::function<void(ConsoleTriggerType)> on_change;
+};
+
+class EmulatedConsole {
+public:
+    /**
+     * Contains all input data related to the console like motion and touch input
+     */
+    EmulatedConsole();
+    ~EmulatedConsole();
+
+    YUZU_NON_COPYABLE(EmulatedConsole);
+    YUZU_NON_MOVEABLE(EmulatedConsole);
+
+    /// Removes all callbacks created from input devices
+    void UnloadInput();
+
+    /// Sets the emulated console into configuring mode. Locking all HID service events from being
+    /// moddified
+    void EnableConfiguration();
+
+    /// Returns the emulated console to the normal behaivour
+    void DisableConfiguration();
+
+    /// Returns true if the emulated console is on configuring mode
+    bool IsConfiguring() const;
+
+    /// Reload all input devices
+    void ReloadInput();
+
+    /// Overrides current mapped devices with the stored configuration and reloads all input devices
+    void ReloadFromSettings();
+
+    /// Saves the current mapped configuration
+    void SaveCurrentConfig();
+
+    /// Reverts any mapped changes made that weren't saved
+    void RestoreConfig();
+
+    // Returns the current mapped motion device
+    Common::ParamPackage GetMotionParam() const;
+
+    /**
+     * Updates the current mapped motion device
+     * @param ParamPackage with controller data to be mapped
+     */
+    void SetMotionParam(Common::ParamPackage param);
+
+    /// Returns the latest status of motion input from the console with parameters
+    ConsoleMotionValues GetMotionValues() const;
+
+    /// Returns the latest status of touch input from the console with parameters
+    TouchValues GetTouchValues() const;
+
+    /// Returns the latest status of motion input from the console
+    ConsoleMotion GetMotion() const;
+
+    /// Returns the latest status of touch input from the console
+    TouchFingerState GetTouch() const;
+
+    /**
+     * Adds a callback to the list of events
+     * @param ConsoleUpdateCallback that will be triggered
+     * @return an unique key corresponding to the callback index in the list
+     */
+    int SetCallback(ConsoleUpdateCallback update_callback);
+
+    /**
+     * Removes a callback from the list stopping any future events to this object
+     * @param Key corresponding to the callback index in the list
+     */
+    void DeleteCallback(int key);
+
+private:
+    /// Creates and stores the touch params
+    void SetTouchParams();
+
+    /**
+     * Updates the motion status of the console
+     * @param A CallbackStatus containing gyro and accelerometer data
+     */
+    void SetMotion(Common::Input::CallbackStatus callback);
+
+    /**
+     * Updates the touch status of the console
+     * @param callback: A CallbackStatus containing the touch position
+     * @param index: Finger ID to be updated
+     */
+    void SetTouch(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Triggers a callback that something has changed on the console status
+     * @param Input type of the event to trigger
+     */
+    void TriggerOnChange(ConsoleTriggerType type);
+
+    bool is_configuring{false};
+    f32 motion_sensitivity{0.01f};
+
+    ConsoleMotionParams motion_params;
+    TouchParams touch_params;
+
+    ConsoleMotionDevices motion_devices;
+    TouchDevices touch_devices;
+
+    mutable std::mutex mutex;
+    std::unordered_map<int, ConsoleUpdateCallback> callback_list;
+    int last_callback_key = 0;
+
+    // Stores the current status of all console input
+    ConsoleStatus console;
+};
+
+} // namespace Core::HID

src/core/hid/emulated_controller.h

@@ -0,0 +1,392 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/point.h"
+#include "common/quaternion.h"
+#include "common/settings.h"
+#include "common/vector_math.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/motion_input.h"
+
+namespace Core::HID {
+const std::size_t max_emulated_controllers = 2;
+struct ControllerMotionInfo {
+    Common::Input::MotionStatus raw_status{};
+    MotionInput emulated{};
+};
+
+using ButtonDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, Settings::NativeButton::NumButtons>;
+using StickDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, Settings::NativeAnalog::NumAnalogs>;
+using ControllerMotionDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, Settings::NativeMotion::NumMotions>;
+using TriggerDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, Settings::NativeTrigger::NumTriggers>;
+using BatteryDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, max_emulated_controllers>;
+using OutputDevices =
+    std::array<std::unique_ptr<Common::Input::OutputDevice>, max_emulated_controllers>;
+
+using ButtonParams = std::array<Common::ParamPackage, Settings::NativeButton::NumButtons>;
+using StickParams = std::array<Common::ParamPackage, Settings::NativeAnalog::NumAnalogs>;
+using ControllerMotionParams = std::array<Common::ParamPackage, Settings::NativeMotion::NumMotions>;
+using TriggerParams = std::array<Common::ParamPackage, Settings::NativeTrigger::NumTriggers>;
+using BatteryParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+using OutputParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+
+using ButtonValues = std::array<Common::Input::ButtonStatus, Settings::NativeButton::NumButtons>;
+using SticksValues = std::array<Common::Input::StickStatus, Settings::NativeAnalog::NumAnalogs>;
+using TriggerValues =
+    std::array<Common::Input::TriggerStatus, Settings::NativeTrigger::NumTriggers>;
+using ControllerMotionValues = std::array<ControllerMotionInfo, Settings::NativeMotion::NumMotions>;
+using ColorValues = std::array<Common::Input::BodyColorStatus, max_emulated_controllers>;
+using BatteryValues = std::array<Common::Input::BatteryStatus, max_emulated_controllers>;
+using VibrationValues = std::array<Common::Input::VibrationStatus, max_emulated_controllers>;
+
+struct AnalogSticks {
+    AnalogStickState left{};
+    AnalogStickState right{};
+};
+
+struct ControllerColors {
+    NpadControllerColor fullkey{};
+    NpadControllerColor left{};
+    NpadControllerColor right{};
+};
+
+struct BatteryLevelState {
+    NpadPowerInfo dual{};
+    NpadPowerInfo left{};
+    NpadPowerInfo right{};
+};
+
+struct ControllerMotion {
+    Common::Vec3f accel{};
+    Common::Vec3f gyro{};
+    Common::Vec3f rotation{};
+    std::array<Common::Vec3f, 3> orientation{};
+    bool is_at_rest{};
+};
+
+enum DeviceIndex : u8 {
+    LeftIndex,
+    RightIndex,
+    DualIndex,
+    AllDevices,
+};
+
+using MotionState = std::array<ControllerMotion, 2>;
+
+struct ControllerStatus {
+    // Data from input_common
+    ButtonValues button_values{};
+    SticksValues stick_values{};
+    ControllerMotionValues motion_values{};
+    TriggerValues trigger_values{};
+    ColorValues color_values{};
+    BatteryValues battery_values{};
+    VibrationValues vibration_values{};
+
+    // Data for HID serices
+    NpadButtonState npad_button_state{};
+    DebugPadButton debug_pad_button_state{};
+    AnalogSticks analog_stick_state{};
+    MotionState motion_state{};
+    NpadGcTriggerState gc_trigger_state{};
+    ControllerColors colors_state{};
+    BatteryLevelState battery_state{};
+};
+
+enum class ControllerTriggerType {
+    Button,
+    Stick,
+    Trigger,
+    Motion,
+    Color,
+    Battery,
+    Vibration,
+    Connected,
+    Disconnected,
+    Type,
+    All,
+};
+
+struct ControllerUpdateCallback {
+    std::function<void(ControllerTriggerType)> on_change;
+    bool is_npad_service;
+};
+
+class EmulatedController {
+public:
+    /**
+     * Contains all input data related to this controller. Like buttons, joysticks, motion.
+     * @param Npad id type for this specific controller
+     */
+    explicit EmulatedController(NpadIdType npad_id_type_);
+    ~EmulatedController();
+
+    YUZU_NON_COPYABLE(EmulatedController);
+    YUZU_NON_MOVEABLE(EmulatedController);
+
+    /// Converts the controller type from settings to npad type
+    static NpadType MapSettingsTypeToNPad(Settings::ControllerType type);
+
+    /// Converts npad type to the equivalent of controller type from settings
+    static Settings::ControllerType MapNPadToSettingsType(NpadType type);
+
+    /// Gets the NpadIdType for this controller
+    NpadIdType GetNpadIdType() const;
+
+    /// Sets the NpadType for this controller
+    void SetNpadType(NpadType npad_type_);
+
+    /**
+     * Gets the NpadType for this controller
+     * @param If true tmp_npad_type will be returned
+     * @return NpadType set on the controller
+     */
+    NpadType GetNpadType(bool get_temporary_value = false) const;
+
+    /// Sets the connected status to true
+    void Connect();
+
+    /// Sets the connected status to false
+    void Disconnect();
+
+    /**
+     * Is the emulated connected
+     * @param If true tmp_is_connected will be returned
+     * @return true if the controller has the connected status
+     */
+    bool IsConnected(bool get_temporary_value = false) const;
+
+    /// Returns true if vibration is enabled
+    bool IsVibrationEnabled() const;
+
+    /// Removes all callbacks created from input devices
+    void UnloadInput();
+
+    /// Sets the emulated console into configuring mode. Locking all HID service events from being
+    /// moddified
+    void EnableConfiguration();
+
+    /// Returns the emulated console to the normal behaivour
+    void DisableConfiguration();
+
+    /// Returns true if the emulated device is on configuring mode
+    bool IsConfiguring() const;
+
+    /// Reload all input devices
+    void ReloadInput();
+
+    /// Overrides current mapped devices with the stored configuration and reloads all input devices
+    void ReloadFromSettings();
+
+    /// Saves the current mapped configuration
+    void SaveCurrentConfig();
+
+    /// Reverts any mapped changes made that weren't saved
+    void RestoreConfig();
+
+    /// Returns a vector of mapped devices from the mapped button and stick parameters
+    std::vector<Common::ParamPackage> GetMappedDevices(DeviceIndex device_index) const;
+
+    // Returns the current mapped button device
+    Common::ParamPackage GetButtonParam(std::size_t index) const;
+
+    // Returns the current mapped stick device
+    Common::ParamPackage GetStickParam(std::size_t index) const;
+
+    // Returns the current mapped motion device
+    Common::ParamPackage GetMotionParam(std::size_t index) const;
+
+    /**
+     * Updates the current mapped button device
+     * @param ParamPackage with controller data to be mapped
+     */
+    void SetButtonParam(std::size_t index, Common::ParamPackage param);
+
+    /**
+     * Updates the current mapped stick device
+     * @param ParamPackage with controller data to be mapped
+     */
+    void SetStickParam(std::size_t index, Common::ParamPackage param);
+
+    /**
+     * Updates the current mapped motion device
+     * @param ParamPackage with controller data to be mapped
+     */
+    void SetMotionParam(std::size_t index, Common::ParamPackage param);
+
+    /// Returns the latest button status from the controller with parameters
+    ButtonValues GetButtonsValues() const;
+
+    /// Returns the latest analog stick status from the controller with parameters
+    SticksValues GetSticksValues() const;
+
+    /// Returns the latest trigger status from the controller with parameters
+    TriggerValues GetTriggersValues() const;
+
+    /// Returns the latest motion status from the controller with parameters
+    ControllerMotionValues GetMotionValues() const;
+
+    /// Returns the latest color status from the controller with parameters
+    ColorValues GetColorsValues() const;
+
+    /// Returns the latest battery status from the controller with parameters
+    BatteryValues GetBatteryValues() const;
+
+    /// Returns the latest status of button input for the npad service
+    NpadButtonState GetNpadButtons() const;
+
+    /// Returns the latest status of button input for the debug pad service
+    DebugPadButton GetDebugPadButtons() const;
+
+    /// Returns the latest status of stick input from the mouse
+    AnalogSticks GetSticks() const;
+
+    /// Returns the latest status of trigger input from the mouse
+    NpadGcTriggerState GetTriggers() const;
+
+    /// Returns the latest status of motion input from the mouse
+    MotionState GetMotions() const;
+
+    /// Returns the latest color value from the controller
+    ControllerColors GetColors() const;
+
+    /// Returns the latest battery status from the controller
+    BatteryLevelState GetBattery() const;
+
+    /*
+     * Sends a specific vibration to the output device
+     * @return returns true if vibration had no errors
+     */
+    bool SetVibration(std::size_t device_index, VibrationValue vibration);
+
+    /*
+     * Sends a small vibration to the output device
+     * @return returns true if SetVibration was successfull
+     */
+    bool TestVibration(std::size_t device_index);
+
+    /// Returns the led pattern corresponding to this emulated controller
+    LedPattern GetLedPattern() const;
+
+    /// Asks the output device to change the player led pattern
+    void SetLedPattern();
+
+    /**
+     * Adds a callback to the list of events
+     * @param ConsoleUpdateCallback that will be triggered
+     * @return an unique key corresponding to the callback index in the list
+     */
+    int SetCallback(ControllerUpdateCallback update_callback);
+
+    /**
+     * Removes a callback from the list stopping any future events to this object
+     * @param Key corresponding to the callback index in the list
+     */
+    void DeleteCallback(int key);
+
+private:
+    /// creates input devices from params
+    void LoadDevices();
+
+    /// Set the params for TAS devices
+    void LoadTASParams();
+
+    /**
+     * Updates the button status of the controller
+     * @param callback: A CallbackStatus containing the button status
+     * @param index: Button ID of the to be updated
+     */
+    void SetButton(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Updates the analog stick status of the controller
+     * @param callback: A CallbackStatus containing the analog stick status
+     * @param index: stick ID of the to be updated
+     */
+    void SetStick(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Updates the trigger status of the controller
+     * @param callback: A CallbackStatus containing the trigger status
+     * @param index: trigger ID of the to be updated
+     */
+    void SetTrigger(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Updates the motion status of the controller
+     * @param callback: A CallbackStatus containing gyro and accelerometer data
+     * @param index: motion ID of the to be updated
+     */
+    void SetMotion(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Updates the battery status of the controller
+     * @param callback: A CallbackStatus containing the battery status
+     * @param index: Button ID of the to be updated
+     */
+    void SetBattery(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Triggers a callback that something has changed on the controller status
+     * @param type: Input type of the event to trigger
+     * @param is_service_update: indicates if this event should be sended to only services
+     */
+    void TriggerOnChange(ControllerTriggerType type, bool is_service_update);
+
+    NpadIdType npad_id_type;
+    NpadType npad_type{NpadType::None};
+    bool is_connected{false};
+    bool is_configuring{false};
+    f32 motion_sensitivity{0.01f};
+    bool force_update_motion{false};
+
+    // Temporary values to avoid doing changes while the controller is on configuration mode
+    NpadType tmp_npad_type{NpadType::None};
+    bool tmp_is_connected{false};
+
+    ButtonParams button_params;
+    StickParams stick_params;
+    ControllerMotionParams motion_params;
+    TriggerParams trigger_params;
+    BatteryParams battery_params;
+    OutputParams output_params;
+
+    ButtonDevices button_devices;
+    StickDevices stick_devices;
+    ControllerMotionDevices motion_devices;
+    TriggerDevices trigger_devices;
+    BatteryDevices battery_devices;
+    OutputDevices output_devices;
+
+    // TAS related variables
+    ButtonParams tas_button_params;
+    StickParams tas_stick_params;
+    ButtonDevices tas_button_devices;
+    StickDevices tas_stick_devices;
+
+    mutable std::mutex mutex;
+    std::unordered_map<int, ControllerUpdateCallback> callback_list;
+    int last_callback_key = 0;
+
+    // Stores the current status of all controller input
+    ControllerStatus controller;
+};
+
+} // namespace Core::HID

src/core/hid/emulated_devices.cpp

@@ -0,0 +1,372 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include <algorithm>
+#include <fmt/format.h>
+
+#include "core/hid/emulated_devices.h"
+#include "core/hid/input_converter.h"
+
+namespace Core::HID {
+
+EmulatedDevices::EmulatedDevices() = default;
+
+EmulatedDevices::~EmulatedDevices() = default;
+
+void EmulatedDevices::ReloadFromSettings() {
+    const auto& mouse = Settings::values.mouse_buttons;
+
+    for (std::size_t index = 0; index < mouse.size(); ++index) {
+        mouse_button_params[index] = Common::ParamPackage(mouse[index]);
+    }
+    ReloadInput();
+}
+
+void EmulatedDevices::ReloadInput() {
+    std::transform(mouse_button_params.begin() + Settings::NativeMouseButton::MOUSE_HID_BEGIN,
+                   mouse_button_params.begin() + Settings::NativeMouseButton::MOUSE_HID_END,
+                   mouse_button_devices.begin(),
+                   Common::Input::CreateDevice<Common::Input::InputDevice>);
+
+    std::transform(Settings::values.keyboard_keys.begin(), Settings::values.keyboard_keys.end(),
+                   keyboard_devices.begin(),
+                   Common::Input::CreateDeviceFromString<Common::Input::InputDevice>);
+
+    std::transform(Settings::values.keyboard_mods.begin(), Settings::values.keyboard_mods.end(),
+                   keyboard_modifier_devices.begin(),
+                   Common::Input::CreateDeviceFromString<Common::Input::InputDevice>);
+
+    for (std::size_t index = 0; index < mouse_button_devices.size(); ++index) {
+        if (!mouse_button_devices[index]) {
+            continue;
+        }
+        Common::Input::InputCallback button_callback{
+            [this, index](Common::Input::CallbackStatus callback) {
+                SetMouseButton(callback, index);
+            }};
+        mouse_button_devices[index]->SetCallback(button_callback);
+    }
+
+    for (std::size_t index = 0; index < keyboard_devices.size(); ++index) {
+        if (!keyboard_devices[index]) {
+            continue;
+        }
+        Common::Input::InputCallback button_callback{
+            [this, index](Common::Input::CallbackStatus callback) {
+                SetKeyboardButton(callback, index);
+            }};
+        keyboard_devices[index]->SetCallback(button_callback);
+    }
+
+    for (std::size_t index = 0; index < keyboard_modifier_devices.size(); ++index) {
+        if (!keyboard_modifier_devices[index]) {
+            continue;
+        }
+        Common::Input::InputCallback button_callback{
+            [this, index](Common::Input::CallbackStatus callback) {
+                SetKeyboardModifier(callback, index);
+            }};
+        keyboard_modifier_devices[index]->SetCallback(button_callback);
+    }
+}
+
+void EmulatedDevices::UnloadInput() {
+    for (auto& button : mouse_button_devices) {
+        button.reset();
+    }
+    for (auto& button : keyboard_devices) {
+        button.reset();
+    }
+    for (auto& button : keyboard_modifier_devices) {
+        button.reset();
+    }
+}
+
+void EmulatedDevices::EnableConfiguration() {
+    is_configuring = true;
+    SaveCurrentConfig();
+}
+
+void EmulatedDevices::DisableConfiguration() {
+    is_configuring = false;
+}
+
+bool EmulatedDevices::IsConfiguring() const {
+    return is_configuring;
+}
+
+void EmulatedDevices::SaveCurrentConfig() {
+    if (!is_configuring) {
+        return;
+    }
+
+    auto& mouse = Settings::values.mouse_buttons;
+
+    for (std::size_t index = 0; index < mouse.size(); ++index) {
+        mouse[index] = mouse_button_params[index].Serialize();
+    }
+}
+
+void EmulatedDevices::RestoreConfig() {
+    if (!is_configuring) {
+        return;
+    }
+    ReloadFromSettings();
+}
+
+Common::ParamPackage EmulatedDevices::GetMouseButtonParam(std::size_t index) const {
+    if (index >= mouse_button_params.size()) {
+        return {};
+    }
+    return mouse_button_params[index];
+}
+
+void EmulatedDevices::SetMouseButtonParam(std::size_t index, Common::ParamPackage param) {
+    if (index >= mouse_button_params.size()) {
+        return;
+    }
+    mouse_button_params[index] = param;
+    ReloadInput();
+}
+
+void EmulatedDevices::SetKeyboardButton(Common::Input::CallbackStatus callback, std::size_t index) {
+    if (index >= device_status.keyboard_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+    bool value_changed = false;
+    const auto new_status = TransformToButton(callback);
+    auto& current_status = device_status.keyboard_values[index];
+    current_status.toggle = new_status.toggle;
+
+    // Update button status with current status
+    if (!current_status.toggle) {
+        current_status.locked = false;
+        if (current_status.value != new_status.value) {
+            current_status.value = new_status.value;
+            value_changed = true;
+        }
+    } else {
+        // Toggle button and lock status
+        if (new_status.value && !current_status.locked) {
+            current_status.locked = true;
+            current_status.value = !current_status.value;
+            value_changed = true;
+        }
+
+        // Unlock button, ready for next press
+        if (!new_status.value && current_status.locked) {
+            current_status.locked = false;
+        }
+    }
+
+    if (!value_changed) {
+        return;
+    }
+
+    if (is_configuring) {
+        TriggerOnChange(DeviceTriggerType::Keyboard);
+        return;
+    }
+
+    UpdateKey(index, current_status.value);
+
+    TriggerOnChange(DeviceTriggerType::Keyboard);
+}
+
+void EmulatedDevices::UpdateKey(std::size_t key_index, bool status) {
+    constexpr u8 KEYS_PER_BYTE = 8;
+    auto& entry = device_status.keyboard_state.key[key_index / KEYS_PER_BYTE];
+    const u8 mask = static_cast<u8>(1 << (key_index % KEYS_PER_BYTE));
+    if (status) {
+        entry = entry | mask;
+    } else {
+        entry = static_cast<u8>(entry & ~mask);
+    }
+}
+
+void EmulatedDevices::SetKeyboardModifier(Common::Input::CallbackStatus callback,
+                                          std::size_t index) {
+    if (index >= device_status.keyboard_moddifier_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+    bool value_changed = false;
+    const auto new_status = TransformToButton(callback);
+    auto& current_status = device_status.keyboard_moddifier_values[index];
+    current_status.toggle = new_status.toggle;
+
+    // Update button status with current
+    if (!current_status.toggle) {
+        current_status.locked = false;
+        if (current_status.value != new_status.value) {
+            current_status.value = new_status.value;
+            value_changed = true;
+        }
+    } else {
+        // Toggle button and lock status
+        if (new_status.value && !current_status.locked) {
+            current_status.locked = true;
+            current_status.value = !current_status.value;
+            value_changed = true;
+        }
+
+        // Unlock button ready for next press
+        if (!new_status.value && current_status.locked) {
+            current_status.locked = false;
+        }
+    }
+
+    if (!value_changed) {
+        return;
+    }
+
+    if (is_configuring) {
+        TriggerOnChange(DeviceTriggerType::KeyboardModdifier);
+        return;
+    }
+
+    switch (index) {
+    case Settings::NativeKeyboard::LeftControl:
+    case Settings::NativeKeyboard::RightControl:
+        device_status.keyboard_moddifier_state.control.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::LeftShift:
+    case Settings::NativeKeyboard::RightShift:
+        device_status.keyboard_moddifier_state.shift.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::LeftAlt:
+        device_status.keyboard_moddifier_state.left_alt.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::RightAlt:
+        device_status.keyboard_moddifier_state.right_alt.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::CapsLock:
+        device_status.keyboard_moddifier_state.caps_lock.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::ScrollLock:
+        device_status.keyboard_moddifier_state.scroll_lock.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::NumLock:
+        device_status.keyboard_moddifier_state.num_lock.Assign(current_status.value);
+        break;
+    }
+
+    TriggerOnChange(DeviceTriggerType::KeyboardModdifier);
+}
+
+void EmulatedDevices::SetMouseButton(Common::Input::CallbackStatus callback, std::size_t index) {
+    if (index >= device_status.mouse_button_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+    bool value_changed = false;
+    const auto new_status = TransformToButton(callback);
+    auto& current_status = device_status.mouse_button_values[index];
+    current_status.toggle = new_status.toggle;
+
+    // Update button status with current
+    if (!current_status.toggle) {
+        current_status.locked = false;
+        if (current_status.value != new_status.value) {
+            current_status.value = new_status.value;
+            value_changed = true;
+        }
+    } else {
+        // Toggle button and lock status
+        if (new_status.value && !current_status.locked) {
+            current_status.locked = true;
+            current_status.value = !current_status.value;
+            value_changed = true;
+        }
+
+        // Unlock button ready for next press
+        if (!new_status.value && current_status.locked) {
+            current_status.locked = false;
+        }
+    }
+
+    if (!value_changed) {
+        return;
+    }
+
+    if (is_configuring) {
+        TriggerOnChange(DeviceTriggerType::Mouse);
+        return;
+    }
+
+    switch (index) {
+    case Settings::NativeMouseButton::Left:
+        device_status.mouse_button_state.left.Assign(current_status.value);
+        break;
+    case Settings::NativeMouseButton::Right:
+        device_status.mouse_button_state.right.Assign(current_status.value);
+        break;
+    case Settings::NativeMouseButton::Middle:
+        device_status.mouse_button_state.middle.Assign(current_status.value);
+        break;
+    case Settings::NativeMouseButton::Forward:
+        device_status.mouse_button_state.forward.Assign(current_status.value);
+        break;
+    case Settings::NativeMouseButton::Back:
+        device_status.mouse_button_state.back.Assign(current_status.value);
+        break;
+    }
+
+    TriggerOnChange(DeviceTriggerType::Mouse);
+}
+
+KeyboardValues EmulatedDevices::GetKeyboardValues() const {
+    return device_status.keyboard_values;
+}
+
+KeyboardModifierValues EmulatedDevices::GetKeyboardModdifierValues() const {
+    return device_status.keyboard_moddifier_values;
+}
+
+MouseButtonValues EmulatedDevices::GetMouseButtonsValues() const {
+    return device_status.mouse_button_values;
+}
+
+KeyboardKey EmulatedDevices::GetKeyboard() const {
+    return device_status.keyboard_state;
+}
+
+KeyboardModifier EmulatedDevices::GetKeyboardModifier() const {
+    return device_status.keyboard_moddifier_state;
+}
+
+MouseButton EmulatedDevices::GetMouseButtons() const {
+    return device_status.mouse_button_state;
+}
+
+MousePosition EmulatedDevices::GetMousePosition() const {
+    return device_status.mouse_position_state;
+}
+
+void EmulatedDevices::TriggerOnChange(DeviceTriggerType type) {
+    for (const auto& poller_pair : callback_list) {
+        const InterfaceUpdateCallback& poller = poller_pair.second;
+        if (poller.on_change) {
+            poller.on_change(type);
+        }
+    }
+}
+
+int EmulatedDevices::SetCallback(InterfaceUpdateCallback update_callback) {
+    std::lock_guard lock{mutex};
+    callback_list.insert_or_assign(last_callback_key, update_callback);
+    return last_callback_key++;
+}
+
+void EmulatedDevices::DeleteCallback(int key) {
+    std::lock_guard lock{mutex};
+    const auto& iterator = callback_list.find(key);
+    if (iterator == callback_list.end()) {
+        LOG_ERROR(Input, "Tried to delete non-existent callback {}", key);
+        return;
+    }
+    callback_list.erase(iterator);
+}
+} // namespace Core::HID

src/core/hid/emulated_devices.h

@@ -0,0 +1,196 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/settings.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/motion_input.h"
+
+namespace Core::HID {
+
+using KeyboardDevices = std::array<std::unique_ptr<Common::Input::InputDevice>,
+                                   Settings::NativeKeyboard::NumKeyboardKeys>;
+using KeyboardModifierDevices = std::array<std::unique_ptr<Common::Input::InputDevice>,
+                                           Settings::NativeKeyboard::NumKeyboardMods>;
+using MouseButtonDevices = std::array<std::unique_ptr<Common::Input::InputDevice>,
+                                      Settings::NativeMouseButton::NumMouseButtons>;
+
+using MouseButtonParams =
+    std::array<Common::ParamPackage, Settings::NativeMouseButton::NumMouseButtons>;
+
+using KeyboardValues =
+    std::array<Common::Input::ButtonStatus, Settings::NativeKeyboard::NumKeyboardKeys>;
+using KeyboardModifierValues =
+    std::array<Common::Input::ButtonStatus, Settings::NativeKeyboard::NumKeyboardMods>;
+using MouseButtonValues =
+    std::array<Common::Input::ButtonStatus, Settings::NativeMouseButton::NumMouseButtons>;
+
+struct MousePosition {
+    s32 x;
+    s32 y;
+    s32 delta_wheel_x;
+    s32 delta_wheel_y;
+};
+
+struct DeviceStatus {
+    // Data from input_common
+    KeyboardValues keyboard_values{};
+    KeyboardModifierValues keyboard_moddifier_values{};
+    MouseButtonValues mouse_button_values{};
+
+    // Data for HID serices
+    KeyboardKey keyboard_state{};
+    KeyboardModifier keyboard_moddifier_state{};
+    MouseButton mouse_button_state{};
+    MousePosition mouse_position_state{};
+};
+
+enum class DeviceTriggerType {
+    Keyboard,
+    KeyboardModdifier,
+    Mouse,
+};
+
+struct InterfaceUpdateCallback {
+    std::function<void(DeviceTriggerType)> on_change;
+};
+
+class EmulatedDevices {
+public:
+    /**
+     * Contains all input data related to external devices that aren't necesarily a controller
+     * like keyboard and mouse
+     */
+    EmulatedDevices();
+    ~EmulatedDevices();
+
+    YUZU_NON_COPYABLE(EmulatedDevices);
+    YUZU_NON_MOVEABLE(EmulatedDevices);
+
+    /// Removes all callbacks created from input devices
+    void UnloadInput();
+
+    /// Sets the emulated console into configuring mode. Locking all HID service events from being
+    /// moddified
+    void EnableConfiguration();
+
+    /// Returns the emulated console to the normal behaivour
+    void DisableConfiguration();
+
+    /// Returns true if the emulated device is on configuring mode
+    bool IsConfiguring() const;
+
+    /// Reload all input devices
+    void ReloadInput();
+
+    /// Overrides current mapped devices with the stored configuration and reloads all input devices
+    void ReloadFromSettings();
+
+    /// Saves the current mapped configuration
+    void SaveCurrentConfig();
+
+    /// Reverts any mapped changes made that weren't saved
+    void RestoreConfig();
+
+    /// Returns the current mapped motion device
+    Common::ParamPackage GetMouseButtonParam(std::size_t index) const;
+
+    /**
+     * Updates the current mapped mouse button device
+     * @param ParamPackage with controller data to be mapped
+     */
+    void SetMouseButtonParam(std::size_t index, Common::ParamPackage param);
+
+    /// Returns the latest status of button input from the keyboard with parameters
+    KeyboardValues GetKeyboardValues() const;
+
+    /// Returns the latest status of button input from the keyboard modifiers with parameters
+    KeyboardModifierValues GetKeyboardModdifierValues() const;
+
+    /// Returns the latest status of button input from the mouse with parameters
+    MouseButtonValues GetMouseButtonsValues() const;
+
+    /// Returns the latest status of button input from the keyboard
+    KeyboardKey GetKeyboard() const;
+
+    /// Returns the latest status of button input from the keyboard modifiers
+    KeyboardModifier GetKeyboardModifier() const;
+
+    /// Returns the latest status of button input from the mouse
+    MouseButton GetMouseButtons() const;
+
+    /// Returns the latest mouse coordinates
+    MousePosition GetMousePosition() const;
+
+    /**
+     * Adds a callback to the list of events
+     * @param ConsoleUpdateCallback that will be triggered
+     * @return an unique key corresponding to the callback index in the list
+     */
+    int SetCallback(InterfaceUpdateCallback update_callback);
+
+    /**
+     * Removes a callback from the list stopping any future events to this object
+     * @param Key corresponding to the callback index in the list
+     */
+    void DeleteCallback(int key);
+
+private:
+    /// Helps assigning a value to keyboard_state
+    void UpdateKey(std::size_t key_index, bool status);
+
+    /**
+     * Updates the touch status of the console
+     * @param callback: A CallbackStatus containing the key status
+     * @param index: key ID to be updated
+     */
+    void SetKeyboardButton(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Updates the touch status of the console
+     * @param callback: A CallbackStatus containing the modifier key status
+     * @param index: modifier key ID to be updated
+     */
+    void SetKeyboardModifier(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Updates the touch status of the console
+     * @param callback: A CallbackStatus containing the button status
+     * @param index: Button ID of the to be updated
+     */
+    void SetMouseButton(Common::Input::CallbackStatus callback, std::size_t index);
+
+    /**
+     * Triggers a callback that something has changed on the device status
+     * @param Input type of the event to trigger
+     */
+    void TriggerOnChange(DeviceTriggerType type);
+
+    bool is_configuring{false};
+
+    MouseButtonParams mouse_button_params;
+
+    KeyboardDevices keyboard_devices;
+    KeyboardModifierDevices keyboard_modifier_devices;
+    MouseButtonDevices mouse_button_devices;
+
+    mutable std::mutex mutex;
+    std::unordered_map<int, InterfaceUpdateCallback> callback_list;
+    int last_callback_key = 0;
+
+    // Stores the current status of all external device input
+    DeviceStatus device_status;
+};
+
+} // namespace Core::HID

src/core/hid/hid_core.cpp

@@ -0,0 +1,168 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "core/hid/emulated_console.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/emulated_devices.h"
+#include "core/hid/hid_core.h"
+
+namespace Core::HID {
+
+HIDCore::HIDCore()
+    : player_1{std::make_unique<EmulatedController>(NpadIdType::Player1)},
+      player_2{std::make_unique<EmulatedController>(NpadIdType::Player2)},
+      player_3{std::make_unique<EmulatedController>(NpadIdType::Player3)},
+      player_4{std::make_unique<EmulatedController>(NpadIdType::Player4)},
+      player_5{std::make_unique<EmulatedController>(NpadIdType::Player5)},
+      player_6{std::make_unique<EmulatedController>(NpadIdType::Player6)},
+      player_7{std::make_unique<EmulatedController>(NpadIdType::Player7)},
+      player_8{std::make_unique<EmulatedController>(NpadIdType::Player8)},
+      other{std::make_unique<EmulatedController>(NpadIdType::Other)},
+      handheld{std::make_unique<EmulatedController>(NpadIdType::Handheld)},
+      console{std::make_unique<EmulatedConsole>()}, devices{std::make_unique<EmulatedDevices>()} {}
+
+HIDCore::~HIDCore() = default;
+
+EmulatedController* HIDCore::GetEmulatedController(NpadIdType npad_id_type) {
+    switch (npad_id_type) {
+    case NpadIdType::Player1:
+        return player_1.get();
+    case NpadIdType::Player2:
+        return player_2.get();
+    case NpadIdType::Player3:
+        return player_3.get();
+    case NpadIdType::Player4:
+        return player_4.get();
+    case NpadIdType::Player5:
+        return player_5.get();
+    case NpadIdType::Player6:
+        return player_6.get();
+    case NpadIdType::Player7:
+        return player_7.get();
+    case NpadIdType::Player8:
+        return player_8.get();
+    case NpadIdType::Other:
+        return other.get();
+    case NpadIdType::Handheld:
+        return handheld.get();
+    case NpadIdType::Invalid:
+    default:
+        UNREACHABLE_MSG("Invalid NpadIdType={}", npad_id_type);
+        return nullptr;
+    }
+}
+
+const EmulatedController* HIDCore::GetEmulatedController(NpadIdType npad_id_type) const {
+    switch (npad_id_type) {
+    case NpadIdType::Player1:
+        return player_1.get();
+    case NpadIdType::Player2:
+        return player_2.get();
+    case NpadIdType::Player3:
+        return player_3.get();
+    case NpadIdType::Player4:
+        return player_4.get();
+    case NpadIdType::Player5:
+        return player_5.get();
+    case NpadIdType::Player6:
+        return player_6.get();
+    case NpadIdType::Player7:
+        return player_7.get();
+    case NpadIdType::Player8:
+        return player_8.get();
+    case NpadIdType::Other:
+        return other.get();
+    case NpadIdType::Handheld:
+        return handheld.get();
+    case NpadIdType::Invalid:
+    default:
+        UNREACHABLE_MSG("Invalid NpadIdType={}", npad_id_type);
+        return nullptr;
+    }
+}
+EmulatedConsole* HIDCore::GetEmulatedConsole() {
+    return console.get();
+}
+
+const EmulatedConsole* HIDCore::GetEmulatedConsole() const {
+    return console.get();
+}
+
+EmulatedDevices* HIDCore::GetEmulatedDevices() {
+    return devices.get();
+}
+
+const EmulatedDevices* HIDCore::GetEmulatedDevices() const {
+    return devices.get();
+}
+
+EmulatedController* HIDCore::GetEmulatedControllerByIndex(std::size_t index) {
+    return GetEmulatedController(IndexToNpadIdType(index));
+}
+
+const EmulatedController* HIDCore::GetEmulatedControllerByIndex(std::size_t index) const {
+    return GetEmulatedController(IndexToNpadIdType(index));
+}
+
+void HIDCore::SetSupportedStyleTag(NpadStyleTag style_tag) {
+    supported_style_tag.raw = style_tag.raw;
+}
+
+NpadStyleTag HIDCore::GetSupportedStyleTag() const {
+    return supported_style_tag;
+}
+
+s8 HIDCore::GetPlayerCount() const {
+    s8 active_players = 0;
+    for (std::size_t player_index = 0; player_index < available_controllers - 2; ++player_index) {
+        const auto* const controller = GetEmulatedControllerByIndex(player_index);
+        if (controller->IsConnected()) {
+            active_players++;
+        }
+    }
+    return active_players;
+}
+
+NpadIdType HIDCore::GetFirstNpadId() const {
+    for (std::size_t player_index = 0; player_index < available_controllers; ++player_index) {
+        const auto* const controller = GetEmulatedControllerByIndex(player_index);
+        if (controller->IsConnected()) {
+            return controller->GetNpadIdType();
+        }
+    }
+    return NpadIdType::Player1;
+}
+
+void HIDCore::ReloadInputDevices() {
+    player_1->ReloadFromSettings();
+    player_2->ReloadFromSettings();
+    player_3->ReloadFromSettings();
+    player_4->ReloadFromSettings();
+    player_5->ReloadFromSettings();
+    player_6->ReloadFromSettings();
+    player_7->ReloadFromSettings();
+    player_8->ReloadFromSettings();
+    other->ReloadFromSettings();
+    handheld->ReloadFromSettings();
+    console->ReloadFromSettings();
+    devices->ReloadFromSettings();
+}
+
+void HIDCore::UnloadInputDevices() {
+    player_1->UnloadInput();
+    player_2->UnloadInput();
+    player_3->UnloadInput();
+    player_4->UnloadInput();
+    player_5->UnloadInput();
+    player_6->UnloadInput();
+    player_7->UnloadInput();
+    player_8->UnloadInput();
+    other->UnloadInput();
+    handheld->UnloadInput();
+    console->UnloadInput();
+    devices->UnloadInput();
+}
+
+} // namespace Core::HID

src/core/hid/hid_core.h

@@ -0,0 +1,73 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+
+#include "core/hid/hid_types.h"
+
+namespace Core::HID {
+class EmulatedConsole;
+class EmulatedController;
+class EmulatedDevices;
+} // namespace Core::HID
+
+namespace Core::HID {
+
+class HIDCore {
+public:
+    explicit HIDCore();
+    ~HIDCore();
+
+    YUZU_NON_COPYABLE(HIDCore);
+    YUZU_NON_MOVEABLE(HIDCore);
+
+    EmulatedController* GetEmulatedController(NpadIdType npad_id_type);
+    const EmulatedController* GetEmulatedController(NpadIdType npad_id_type) const;
+
+    EmulatedController* GetEmulatedControllerByIndex(std::size_t index);
+    const EmulatedController* GetEmulatedControllerByIndex(std::size_t index) const;
+
+    EmulatedConsole* GetEmulatedConsole();
+    const EmulatedConsole* GetEmulatedConsole() const;
+
+    EmulatedDevices* GetEmulatedDevices();
+    const EmulatedDevices* GetEmulatedDevices() const;
+
+    void SetSupportedStyleTag(NpadStyleTag style_tag);
+    NpadStyleTag GetSupportedStyleTag() const;
+
+    /// Counts the connected players from P1-P8
+    s8 GetPlayerCount() const;
+
+    /// Returns the first connected npad id
+    NpadIdType GetFirstNpadId() const;
+
+    /// Reloads all input devices from settings
+    void ReloadInputDevices();
+
+    /// Removes all callbacks from input common
+    void UnloadInputDevices();
+
+    /// Number of emulated controllers
+    const std::size_t available_controllers{10};
+
+private:
+    std::unique_ptr<EmulatedController> player_1;
+    std::unique_ptr<EmulatedController> player_2;
+    std::unique_ptr<EmulatedController> player_3;
+    std::unique_ptr<EmulatedController> player_4;
+    std::unique_ptr<EmulatedController> player_5;
+    std::unique_ptr<EmulatedController> player_6;
+    std::unique_ptr<EmulatedController> player_7;
+    std::unique_ptr<EmulatedController> player_8;
+    std::unique_ptr<EmulatedController> other;
+    std::unique_ptr<EmulatedController> handheld;
+    std::unique_ptr<EmulatedConsole> console;
+    std::unique_ptr<EmulatedDevices> devices;
+    NpadStyleTag supported_style_tag;
+};
+
+} // namespace Core::HID

src/core/hid/hid_types.h

@@ -0,0 +1,416 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/point.h"
+#include "common/uuid.h"
+
+namespace Core::HID {
+
+// This is nn::hid::NpadIdType
+enum class NpadIdType : u8 {
+    Player1 = 0x0,
+    Player2 = 0x1,
+    Player3 = 0x2,
+    Player4 = 0x3,
+    Player5 = 0x4,
+    Player6 = 0x5,
+    Player7 = 0x6,
+    Player8 = 0x7,
+    Other = 0x10,
+    Handheld = 0x20,
+
+    Invalid = 0xFF,
+};
+
+/// Converts a NpadIdType to an array index.
+constexpr size_t NpadIdTypeToIndex(NpadIdType npad_id_type) {
+    switch (npad_id_type) {
+    case NpadIdType::Player1:
+        return 0;
+    case NpadIdType::Player2:
+        return 1;
+    case NpadIdType::Player3:
+        return 2;
+    case NpadIdType::Player4:
+        return 3;
+    case NpadIdType::Player5:
+        return 4;
+    case NpadIdType::Player6:
+        return 5;
+    case NpadIdType::Player7:
+        return 6;
+    case NpadIdType::Player8:
+        return 7;
+    case NpadIdType::Handheld:
+        return 8;
+    case NpadIdType::Other:
+        return 9;
+    default:
+        return 0;
+    }
+}
+
+/// Converts an array index to a NpadIdType
+constexpr NpadIdType IndexToNpadIdType(size_t index) {
+    switch (index) {
+    case 0:
+        return NpadIdType::Player1;
+    case 1:
+        return NpadIdType::Player2;
+    case 2:
+        return NpadIdType::Player3;
+    case 3:
+        return NpadIdType::Player4;
+    case 4:
+        return NpadIdType::Player5;
+    case 5:
+        return NpadIdType::Player6;
+    case 6:
+        return NpadIdType::Player7;
+    case 7:
+        return NpadIdType::Player8;
+    case 8:
+        return NpadIdType::Handheld;
+    case 9:
+        return NpadIdType::Other;
+    default:
+        return NpadIdType::Invalid;
+    }
+}
+
+// This is nn::hid::NpadType
+enum class NpadType : u8 {
+    None = 0,
+    ProController = 3,
+    Handheld = 4,
+    JoyconDual = 5,
+    JoyconLeft = 6,
+    JoyconRight = 7,
+    GameCube = 8,
+    Pokeball = 9,
+    MaxNpadType = 10,
+};
+
+// This is nn::hid::NpadStyleTag
+struct NpadStyleTag {
+    union {
+        u32 raw{};
+
+        BitField<0, 1, u32> fullkey;
+        BitField<1, 1, u32> handheld;
+        BitField<2, 1, u32> joycon_dual;
+        BitField<3, 1, u32> joycon_left;
+        BitField<4, 1, u32> joycon_right;
+        BitField<5, 1, u32> gamecube;
+        BitField<6, 1, u32> palma;
+        BitField<7, 1, u32> lark;
+        BitField<8, 1, u32> handheld_lark;
+        BitField<9, 1, u32> lucia;
+        BitField<10, 1, u32> lagoon;
+        BitField<11, 1, u32> lager;
+        BitField<29, 1, u32> system_ext;
+        BitField<30, 1, u32> system;
+    };
+};
+static_assert(sizeof(NpadStyleTag) == 4, "NpadStyleTag is an invalid size");
+
+// This is nn::hid::TouchAttribute
+struct TouchAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> start_touch;
+        BitField<1, 1, u32> end_touch;
+    };
+};
+static_assert(sizeof(TouchAttribute) == 0x4, "TouchAttribute is an invalid size");
+
+// This is nn::hid::TouchState
+struct TouchState {
+    u64 delta_time;
+    TouchAttribute attribute;
+    u32 finger;
+    Common::Point<u32> position;
+    u32 diameter_x;
+    u32 diameter_y;
+    u32 rotation_angle;
+};
+static_assert(sizeof(TouchState) == 0x28, "Touchstate is an invalid size");
+
+// This is nn::hid::NpadControllerColor
+struct NpadControllerColor {
+    u32 body;
+    u32 button;
+};
+static_assert(sizeof(NpadControllerColor) == 8, "NpadControllerColor is an invalid size");
+
+// This is nn::hid::AnalogStickState
+struct AnalogStickState {
+    s32 x;
+    s32 y;
+};
+static_assert(sizeof(AnalogStickState) == 8, "AnalogStickState is an invalid size");
+
+// This is nn::hid::server::NpadGcTriggerState
+struct NpadGcTriggerState {
+    s64 sampling_number{};
+    s32 left{};
+    s32 right{};
+};
+static_assert(sizeof(NpadGcTriggerState) == 0x10, "NpadGcTriggerState is an invalid size");
+
+// This is nn::hid::system::NpadBatteryLevel
+using BatteryLevel = u32;
+static_assert(sizeof(BatteryLevel) == 0x4, "BatteryLevel is an invalid size");
+
+// This is nn::hid::system::NpadPowerInfo
+struct NpadPowerInfo {
+    bool is_powered;
+    bool is_charging;
+    INSERT_PADDING_BYTES(0x6);
+    BatteryLevel battery_level;
+};
+static_assert(sizeof(NpadPowerInfo) == 0xC, "NpadPowerInfo is an invalid size");
+
+struct LedPattern {
+    explicit LedPattern(u64 light1, u64 light2, u64 light3, u64 light4) {
+        position1.Assign(light1);
+        position2.Assign(light2);
+        position3.Assign(light3);
+        position4.Assign(light4);
+    }
+    union {
+        u64 raw{};
+        BitField<0, 1, u64> position1;
+        BitField<1, 1, u64> position2;
+        BitField<2, 1, u64> position3;
+        BitField<3, 1, u64> position4;
+    };
+};
+
+// This is nn::hid::NpadButton
+enum class NpadButton : u64 {
+    None = 0,
+    A = 1U << 0,
+    B = 1U << 1,
+    X = 1U << 2,
+    Y = 1U << 3,
+    StickL = 1U << 4,
+    StickR = 1U << 5,
+    L = 1U << 6,
+    R = 1U << 7,
+    ZL = 1U << 8,
+    ZR = 1U << 9,
+    Plus = 1U << 10,
+    Minus = 1U << 11,
+
+    Left = 1U << 12,
+    Up = 1U << 13,
+    Right = 1U << 14,
+    Down = 1U << 15,
+
+    StickLLeft = 1U << 16,
+    StickLUp = 1U << 17,
+    StickLRight = 1U << 18,
+    StickLDown = 1U << 19,
+
+    StickRLeft = 1U << 20,
+    StickRUp = 1U << 21,
+    StickRRight = 1U << 22,
+    StickRDown = 1U << 23,
+
+    LeftSL = 1U << 24,
+    LeftSR = 1U << 25,
+
+    RightSL = 1U << 26,
+    RightSR = 1U << 27,
+
+    Palma = 1U << 28,
+    Verification = 1U << 29,
+    HandheldLeftB = 1U << 30,
+    LagonCLeft = 1U << 31,
+    LagonCUp = 1ULL << 32,
+    LagonCRight = 1ULL << 33,
+    LagonCDown = 1ULL << 34,
+};
+DECLARE_ENUM_FLAG_OPERATORS(NpadButton);
+
+struct NpadButtonState {
+    union {
+        NpadButton raw{};
+
+        // Buttons
+        BitField<0, 1, u64> a;
+        BitField<1, 1, u64> b;
+        BitField<2, 1, u64> x;
+        BitField<3, 1, u64> y;
+        BitField<4, 1, u64> stick_l;
+        BitField<5, 1, u64> stick_r;
+        BitField<6, 1, u64> l;
+        BitField<7, 1, u64> r;
+        BitField<8, 1, u64> zl;
+        BitField<9, 1, u64> zr;
+        BitField<10, 1, u64> plus;
+        BitField<11, 1, u64> minus;
+
+        // D-Pad
+        BitField<12, 1, u64> left;
+        BitField<13, 1, u64> up;
+        BitField<14, 1, u64> right;
+        BitField<15, 1, u64> down;
+
+        // Left JoyStick
+        BitField<16, 1, u64> stick_l_left;
+        BitField<17, 1, u64> stick_l_up;
+        BitField<18, 1, u64> stick_l_right;
+        BitField<19, 1, u64> stick_l_down;
+
+        // Right JoyStick
+        BitField<20, 1, u64> stick_r_left;
+        BitField<21, 1, u64> stick_r_up;
+        BitField<22, 1, u64> stick_r_right;
+        BitField<23, 1, u64> stick_r_down;
+
+        BitField<24, 1, u64> left_sl;
+        BitField<25, 1, u64> left_sr;
+
+        BitField<26, 1, u64> right_sl;
+        BitField<27, 1, u64> right_sr;
+
+        BitField<28, 1, u64> palma;
+        BitField<29, 1, u64> verification;
+        BitField<30, 1, u64> handheld_left_b;
+        BitField<31, 1, u64> lagon_c_left;
+        BitField<32, 1, u64> lagon_c_up;
+        BitField<33, 1, u64> lagon_c_right;
+        BitField<34, 1, u64> lagon_c_down;
+    };
+};
+static_assert(sizeof(NpadButtonState) == 0x8, "NpadButtonState has incorrect size.");
+
+// This is nn::hid::DebugPadButton
+struct DebugPadButton {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> a;
+        BitField<1, 1, u32> b;
+        BitField<2, 1, u32> x;
+        BitField<3, 1, u32> y;
+        BitField<4, 1, u32> l;
+        BitField<5, 1, u32> r;
+        BitField<6, 1, u32> zl;
+        BitField<7, 1, u32> zr;
+        BitField<8, 1, u32> plus;
+        BitField<9, 1, u32> minus;
+        BitField<10, 1, u32> d_left;
+        BitField<11, 1, u32> d_up;
+        BitField<12, 1, u32> d_right;
+        BitField<13, 1, u32> d_down;
+    };
+};
+static_assert(sizeof(DebugPadButton) == 0x4, "DebugPadButton is an invalid size");
+
+// This is nn::hid::VibrationDeviceType
+enum class VibrationDeviceType : u32 {
+    Unknown = 0,
+    LinearResonantActuator = 1,
+    GcErm = 2,
+};
+
+// This is nn::hid::VibrationDevicePosition
+enum class VibrationDevicePosition : u32 {
+    None = 0,
+    Left = 1,
+    Right = 2,
+};
+
+// This is nn::hid::VibrationValue
+struct VibrationValue {
+    f32 low_amplitude;
+    f32 low_frequency;
+    f32 high_amplitude;
+    f32 high_frequency;
+};
+static_assert(sizeof(VibrationValue) == 0x10, "VibrationValue has incorrect size.");
+
+// This is nn::hid::VibrationGcErmCommand
+enum class VibrationGcErmCommand : u64 {
+    Stop = 0,
+    Start = 1,
+    StopHard = 2,
+};
+
+// This is nn::hid::VibrationDeviceInfo
+struct VibrationDeviceInfo {
+    VibrationDeviceType type{};
+    VibrationDevicePosition position{};
+};
+static_assert(sizeof(VibrationDeviceInfo) == 0x8, "VibrationDeviceInfo has incorrect size.");
+
+// This is nn::hid::KeyboardModifier
+struct KeyboardModifier {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> control;
+        BitField<1, 1, u32> shift;
+        BitField<2, 1, u32> left_alt;
+        BitField<3, 1, u32> right_alt;
+        BitField<4, 1, u32> gui;
+        BitField<8, 1, u32> caps_lock;
+        BitField<9, 1, u32> scroll_lock;
+        BitField<10, 1, u32> num_lock;
+        BitField<11, 1, u32> katakana;
+        BitField<12, 1, u32> hiragana;
+    };
+};
+static_assert(sizeof(KeyboardModifier) == 0x4, "KeyboardModifier is an invalid size");
+
+// This is nn::hid::KeyboardKey
+struct KeyboardKey {
+    // This should be a 256 bit flag
+    std::array<u8, 32> key;
+};
+static_assert(sizeof(KeyboardKey) == 0x20, "KeyboardKey is an invalid size");
+
+// This is nn::hid::MouseButton
+struct MouseButton {
+    union {
+        u32_le raw{};
+        BitField<0, 1, u32> left;
+        BitField<1, 1, u32> right;
+        BitField<2, 1, u32> middle;
+        BitField<3, 1, u32> forward;
+        BitField<4, 1, u32> back;
+    };
+};
+static_assert(sizeof(MouseButton) == 0x4, "MouseButton is an invalid size");
+
+// This is nn::hid::MouseAttribute
+struct MouseAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> transferable;
+        BitField<1, 1, u32> is_connected;
+    };
+};
+static_assert(sizeof(MouseAttribute) == 0x4, "MouseAttribute is an invalid size");
+
+// This is nn::hid::detail::MouseState
+struct MouseState {
+    s64 sampling_number;
+    s32 x;
+    s32 y;
+    s32 delta_x;
+    s32 delta_y;
+    s32 delta_wheel_x;
+    s32 delta_wheel_y;
+    MouseButton button;
+    MouseAttribute attribute;
+};
+static_assert(sizeof(MouseState) == 0x28, "MouseState is an invalid size");
+} // namespace Core::HID

src/core/hid/input_converter.cpp

@@ -0,0 +1,355 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include <random>
+
+#include "common/input.h"
+#include "core/hid/input_converter.h"
+
+namespace Core::HID {
+
+Common::Input::BatteryStatus TransformToBattery(const Common::Input::CallbackStatus& callback) {
+    Common::Input::BatteryStatus battery{Common::Input::BatteryStatus::None};
+    switch (callback.type) {
+    case Common::Input::InputType::Analog:
+    case Common::Input::InputType::Trigger: {
+        const auto value = TransformToTrigger(callback).analog.value;
+        battery = Common::Input::BatteryLevel::Empty;
+        if (value > 0.2f) {
+            battery = Common::Input::BatteryLevel::Critical;
+        }
+        if (value > 0.4f) {
+            battery = Common::Input::BatteryLevel::Low;
+        }
+        if (value > 0.6f) {
+            battery = Common::Input::BatteryLevel::Medium;
+        }
+        if (value > 0.8f) {
+            battery = Common::Input::BatteryLevel::Full;
+        }
+        if (value >= 1.0f) {
+            battery = Common::Input::BatteryLevel::Charging;
+        }
+        break;
+    }
+    case Common::Input::InputType::Button:
+        battery = callback.button_status.value ? Common::Input::BatteryLevel::Charging
+                                               : Common::Input::BatteryLevel::Critical;
+        break;
+    case Common::Input::InputType::Battery:
+        battery = callback.battery_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to battery not implemented", callback.type);
+        break;
+    }
+
+    return battery;
+}
+
+Common::Input::ButtonStatus TransformToButton(const Common::Input::CallbackStatus& callback) {
+    Common::Input::ButtonStatus status{};
+    switch (callback.type) {
+    case Common::Input::InputType::Analog:
+    case Common::Input::InputType::Trigger:
+        status.value = TransformToTrigger(callback).pressed.value;
+        break;
+    case Common::Input::InputType::Button:
+        status = callback.button_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to button not implemented", callback.type);
+        break;
+    }
+
+    if (status.inverted) {
+        status.value = !status.value;
+    }
+
+    return status;
+}
+
+Common::Input::MotionStatus TransformToMotion(const Common::Input::CallbackStatus& callback) {
+    Common::Input::MotionStatus status{};
+    switch (callback.type) {
+    case Common::Input::InputType::Button: {
+        Common::Input::AnalogProperties properties{
+            .deadzone = 0.0,
+            .range = 1.0f,
+            .offset = 0.0,
+        };
+        status.delta_timestamp = 5000;
+        status.force_update = true;
+        status.accel.x = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        status.accel.y = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        status.accel.z = {
+            .value = 0.0f,
+            .raw_value = -1.0f,
+            .properties = properties,
+        };
+        if (TransformToButton(callback).value) {
+            std::random_device device;
+            std::mt19937 gen(device());
+            std::uniform_int_distribution<s16> distribution(-1000, 1000);
+            status.accel.x.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.accel.y.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.accel.z.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.gyro.x = {
+                .value = 0,
+                .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+                .properties = properties,
+            };
+            status.gyro.y = {
+                .value = 0,
+                .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+                .properties = properties,
+            };
+            status.gyro.z = {
+                .value = 0,
+                .raw_value = static_cast<f32>(distribution(gen)) * 0.001f,
+                .properties = properties,
+            };
+        }
+        break;
+    }
+    case Common::Input::InputType::Motion:
+        status = callback.motion_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to motion not implemented", callback.type);
+        break;
+    }
+    SanitizeAnalog(status.accel.x, false);
+    SanitizeAnalog(status.accel.y, false);
+    SanitizeAnalog(status.accel.z, false);
+    SanitizeAnalog(status.gyro.x, false);
+    SanitizeAnalog(status.gyro.y, false);
+    SanitizeAnalog(status.gyro.z, false);
+
+    return status;
+}
+
+Common::Input::StickStatus TransformToStick(const Common::Input::CallbackStatus& callback) {
+    Common::Input::StickStatus status{};
+
+    switch (callback.type) {
+    case Common::Input::InputType::Stick:
+        status = callback.stick_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to stick not implemented", callback.type);
+        break;
+    }
+
+    SanitizeStick(status.x, status.y, true);
+    const auto& properties_x = status.x.properties;
+    const auto& properties_y = status.y.properties;
+    const float x = status.x.value;
+    const float y = status.y.value;
+
+    // Set directional buttons
+    status.right = x > properties_x.threshold;
+    status.left = x < -properties_x.threshold;
+    status.up = y > properties_y.threshold;
+    status.down = y < -properties_y.threshold;
+
+    return status;
+}
+
+Common::Input::TouchStatus TransformToTouch(const Common::Input::CallbackStatus& callback) {
+    Common::Input::TouchStatus status{};
+
+    switch (callback.type) {
+    case Common::Input::InputType::Touch:
+        status = callback.touch_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to touch not implemented", callback.type);
+        break;
+    }
+
+    SanitizeAnalog(status.x, true);
+    SanitizeAnalog(status.y, true);
+    float& x = status.x.value;
+    float& y = status.y.value;
+
+    // Adjust if value is inverted
+    x = status.x.properties.inverted ? 1.0f + x : x;
+    y = status.y.properties.inverted ? 1.0f + y : y;
+
+    // clamp value
+    x = std::clamp(x, 0.0f, 1.0f);
+    y = std::clamp(y, 0.0f, 1.0f);
+
+    if (status.pressed.inverted) {
+        status.pressed.value = !status.pressed.value;
+    }
+
+    return status;
+}
+
+Common::Input::TriggerStatus TransformToTrigger(const Common::Input::CallbackStatus& callback) {
+    Common::Input::TriggerStatus status{};
+    float& raw_value = status.analog.raw_value;
+    bool calculate_button_value = true;
+
+    switch (callback.type) {
+    case Common::Input::InputType::Analog:
+        status.analog.properties = callback.analog_status.properties;
+        raw_value = callback.analog_status.raw_value;
+        break;
+    case Common::Input::InputType::Button:
+        status.analog.properties.range = 1.0f;
+        status.analog.properties.inverted = callback.button_status.inverted;
+        raw_value = callback.button_status.value ? 1.0f : 0.0f;
+        break;
+    case Common::Input::InputType::Trigger:
+        status = callback.trigger_status;
+        calculate_button_value = false;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to trigger not implemented", callback.type);
+        break;
+    }
+
+    SanitizeAnalog(status.analog, true);
+    const auto& properties = status.analog.properties;
+    float& value = status.analog.value;
+
+    // Set button status
+    if (calculate_button_value) {
+        status.pressed.value = value > properties.threshold;
+    }
+
+    // Adjust if value is inverted
+    value = properties.inverted ? 1.0f + value : value;
+
+    // clamp value
+    value = std::clamp(value, 0.0f, 1.0f);
+
+    return status;
+}
+
+void SanitizeAnalog(Common::Input::AnalogStatus& analog, bool clamp_value) {
+    const auto& properties = analog.properties;
+    float& raw_value = analog.raw_value;
+    float& value = analog.value;
+
+    if (!std::isnormal(raw_value)) {
+        raw_value = 0;
+    }
+
+    // Apply center offset
+    raw_value -= properties.offset;
+
+    // Set initial values to be formated
+    value = raw_value;
+
+    // Calculate vector size
+    const float r = std::abs(value);
+
+    // Return zero if value is smaller than the deadzone
+    if (r <= properties.deadzone || properties.deadzone == 1.0f) {
+        analog.value = 0;
+        return;
+    }
+
+    // Adjust range of value
+    const float deadzone_factor =
+        1.0f / r * (r - properties.deadzone) / (1.0f - properties.deadzone);
+    value = value * deadzone_factor / properties.range;
+
+    // Invert direction if needed
+    if (properties.inverted) {
+        value = -value;
+    }
+
+    // Clamp value
+    if (clamp_value) {
+        value = std::clamp(value, -1.0f, 1.0f);
+    }
+}
+
+void SanitizeStick(Common::Input::AnalogStatus& analog_x, Common::Input::AnalogStatus& analog_y,
+                   bool clamp_value) {
+    const auto& properties_x = analog_x.properties;
+    const auto& properties_y = analog_y.properties;
+    float& raw_x = analog_x.raw_value;
+    float& raw_y = analog_y.raw_value;
+    float& x = analog_x.value;
+    float& y = analog_y.value;
+
+    if (!std::isnormal(raw_x)) {
+        raw_x = 0;
+    }
+    if (!std::isnormal(raw_y)) {
+        raw_y = 0;
+    }
+
+    // Apply center offset
+    raw_x += properties_x.offset;
+    raw_y += properties_y.offset;
+
+    // Apply X scale correction from offset
+    if (std::abs(properties_x.offset) < 0.5f) {
+        if (raw_x > 0) {
+            raw_x /= 1 + properties_x.offset;
+        } else {
+            raw_x /= 1 - properties_x.offset;
+        }
+    }
+
+    // Apply Y scale correction from offset
+    if (std::abs(properties_y.offset) < 0.5f) {
+        if (raw_y > 0) {
+            raw_y /= 1 + properties_y.offset;
+        } else {
+            raw_y /= 1 - properties_y.offset;
+        }
+    }
+
+    // Invert direction if needed
+    raw_x = properties_x.inverted ? -raw_x : raw_x;
+    raw_y = properties_y.inverted ? -raw_y : raw_y;
+
+    // Set initial values to be formated
+    x = raw_x;
+    y = raw_y;
+
+    // Calculate vector size
+    float r = x * x + y * y;
+    r = std::sqrt(r);
+
+    // TODO(German77): Use deadzone and range of both axis
+
+    // Return zero if values are smaller than the deadzone
+    if (r <= properties_x.deadzone || properties_x.deadzone >= 1.0f) {
+        x = 0;
+        y = 0;
+        return;
+    }
+
+    // Adjust range of joystick
+    const float deadzone_factor =
+        1.0f / r * (r - properties_x.deadzone) / (1.0f - properties_x.deadzone);
+    x = x * deadzone_factor / properties_x.range;
+    y = y * deadzone_factor / properties_x.range;
+    r = r * deadzone_factor / properties_x.range;
+
+    // Normalize joystick
+    if (clamp_value && r > 1.0f) {
+        x /= r;
+        y /= r;
+    }
+}
+
+} // namespace Core::HID

src/core/hid/input_converter.h

@@ -0,0 +1,86 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+namespace Common::Input {
+struct CallbackStatus;
+enum class BatteryLevel : u32;
+using BatteryStatus = BatteryLevel;
+struct AnalogStatus;
+struct ButtonStatus;
+struct MotionStatus;
+struct StickStatus;
+struct TouchStatus;
+struct TriggerStatus;
+}; // namespace Common::Input
+
+namespace Core::HID {
+
+/**
+ * Converts raw input data into a valid battery status.
+ *
+ * @param Supported callbacks: Analog, Battery, Trigger.
+ * @return A valid BatteryStatus object.
+ */
+Common::Input::BatteryStatus TransformToBattery(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid button status. Applies invert properties to the output.
+ *
+ * @param Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::ButtonStatus TransformToButton(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid motion status.
+ *
+ * @param Supported callbacks: Motion.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::MotionStatus TransformToMotion(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid stick status. Applies offset, deadzone, range and invert
+ * properties to the output.
+ *
+ * @param Supported callbacks: Stick.
+ * @return A valid StickStatus object.
+ */
+Common::Input::StickStatus TransformToStick(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid touch status.
+ *
+ * @param Supported callbacks: Touch.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::TouchStatus TransformToTouch(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid trigger status. Applies offset, deadzone, range and
+ * invert properties to the output. Button status uses the threshold property if necessary.
+ *
+ * @param Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TriggerStatus object.
+ */
+Common::Input::TriggerStatus TransformToTrigger(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw analog data into a valid analog value
+ * @param An analog object containing raw data and properties, bool that determines if the value
+ * needs to be clamped between -1.0f and 1.0f.
+ */
+void SanitizeAnalog(Common::Input::AnalogStatus& analog, bool clamp_value);
+
+/**
+ * Converts raw stick data into a valid stick value
+ * @param Two analog objects containing raw data and properties, bool that determines if the value
+ * needs to be clamped into the unit circle.
+ */
+void SanitizeStick(Common::Input::AnalogStatus& analog_x, Common::Input::AnalogStatus& analog_y,
+                   bool clamp_value);
+
+} // namespace Core::HID

src/core/hid/input_interpreter.cpp

@@ -0,0 +1,61 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/core.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/input_interpreter.h"
+#include "core/hle/service/hid/controllers/npad.h"
+#include "core/hle/service/hid/hid.h"
+#include "core/hle/service/sm/sm.h"
+
+InputInterpreter::InputInterpreter(Core::System& system)
+    : npad{system.ServiceManager()
+               .GetService<Service::HID::Hid>("hid")
+               ->GetAppletResource()
+               ->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad)} {
+    ResetButtonStates();
+}
+
+InputInterpreter::~InputInterpreter() = default;
+
+void InputInterpreter::PollInput() {
+    const u64 button_state = npad.GetAndResetPressState();
+
+    previous_index = current_index;
+    current_index = (current_index + 1) % button_states.size();
+
+    button_states[current_index] = button_state;
+}
+
+void InputInterpreter::ResetButtonStates() {
+    previous_index = 0;
+    current_index = 0;
+
+    button_states[0] = 0xFFFFFFFFFFFFFFFF;
+
+    for (std::size_t i = 1; i < button_states.size(); ++i) {
+        button_states[i] = 0;
+    }
+}
+
+bool InputInterpreter::IsButtonPressed(Core::HID::NpadButton button) const {
+    return (button_states[current_index] & static_cast<u64>(button)) != 0;
+}
+
+bool InputInterpreter::IsButtonPressedOnce(Core::HID::NpadButton button) const {
+    const bool current_press = (button_states[current_index] & static_cast<u64>(button)) != 0;
+    const bool previous_press = (button_states[previous_index] & static_cast<u64>(button)) != 0;
+
+    return current_press && !previous_press;
+}
+
+bool InputInterpreter::IsButtonHeld(Core::HID::NpadButton button) const {
+    u64 held_buttons{button_states[0]};
+
+    for (std::size_t i = 1; i < button_states.size(); ++i) {
+        held_buttons &= button_states[i];
+    }
+
+    return (held_buttons & static_cast<u64>(button)) != 0;
+}

src/core/hid/input_interpreter.h

@@ -0,0 +1,112 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+
+namespace Core {
+class System;
+}
+
+namespace Core::HID {
+enum class NpadButton : u64;
+}
+
+namespace Service::HID {
+class Controller_NPad;
+}
+
+/**
+ * The InputInterpreter class interfaces with HID to retrieve button press states.
+ * Input is intended to be polled every 50ms so that a button is considered to be
+ * held down after 400ms has elapsed since the initial button press and subsequent
+ * repeated presses occur every 50ms.
+ */
+class InputInterpreter {
+public:
+    explicit InputInterpreter(Core::System& system);
+    virtual ~InputInterpreter();
+
+    /// Gets a button state from HID and inserts it into the array of button states.
+    void PollInput();
+
+    /// Resets all the button states to their defaults.
+    void ResetButtonStates();
+
+    /**
+     * Checks whether the button is pressed.
+     *
+     * @param button The button to check.
+     *
+     * @returns True when the button is pressed.
+     */
+    [[nodiscard]] bool IsButtonPressed(Core::HID::NpadButton button) const;
+
+    /**
+     * Checks whether any of the buttons in the parameter list is pressed.
+     *
+     * @tparam HIDButton The buttons to check.
+     *
+     * @returns True when at least one of the buttons is pressed.
+     */
+    template <Core::HID::NpadButton... T>
+    [[nodiscard]] bool IsAnyButtonPressed() {
+        return (IsButtonPressed(T) || ...);
+    }
+
+    /**
+     * The specified button is considered to be pressed once
+     * if it is currently pressed and not pressed previously.
+     *
+     * @param button The button to check.
+     *
+     * @returns True when the button is pressed once.
+     */
+    [[nodiscard]] bool IsButtonPressedOnce(Core::HID::NpadButton button) const;
+
+    /**
+     * Checks whether any of the buttons in the parameter list is pressed once.
+     *
+     * @tparam T The buttons to check.
+     *
+     * @returns True when at least one of the buttons is pressed once.
+     */
+    template <Core::HID::NpadButton... T>
+    [[nodiscard]] bool IsAnyButtonPressedOnce() const {
+        return (IsButtonPressedOnce(T) || ...);
+    }
+
+    /**
+     * The specified button is considered to be held down if it is pressed in all 9 button states.
+     *
+     * @param button The button to check.
+     *
+     * @returns True when the button is held down.
+     */
+    [[nodiscard]] bool IsButtonHeld(Core::HID::NpadButton button) const;
+
+    /**
+     * Checks whether any of the buttons in the parameter list is held down.
+     *
+     * @tparam T The buttons to check.
+     *
+     * @returns True when at least one of the buttons is held down.
+     */
+    template <Core::HID::NpadButton... T>
+    [[nodiscard]] bool IsAnyButtonHeld() const {
+        return (IsButtonHeld(T) || ...);
+    }
+
+private:
+    Service::HID::Controller_NPad& npad;
+
+    /// Stores 9 consecutive button states polled from HID.
+    std::array<u64, 9> button_states{};
+
+    std::size_t previous_index{};
+    std::size_t current_index{};
+};

src/core/hid/motion_input.cpp

@@ -0,0 +1,280 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "common/math_util.h"
+#include "core/hid/motion_input.h"
+
+namespace Core::HID {
+
+MotionInput::MotionInput() {
+    // Initialize PID constants with default values
+    SetPID(0.3f, 0.005f, 0.0f);
+}
+
+void MotionInput::SetPID(f32 new_kp, f32 new_ki, f32 new_kd) {
+    kp = new_kp;
+    ki = new_ki;
+    kd = new_kd;
+}
+
+void MotionInput::SetAcceleration(const Common::Vec3f& acceleration) {
+    accel = acceleration;
+}
+
+void MotionInput::SetGyroscope(const Common::Vec3f& gyroscope) {
+    gyro = gyroscope - gyro_drift;
+
+    // Auto adjust drift to minimize drift
+    if (!IsMoving(0.1f)) {
+        gyro_drift = (gyro_drift * 0.9999f) + (gyroscope * 0.0001f);
+    }
+
+    if (gyro.Length2() < gyro_threshold) {
+        gyro = {};
+    } else {
+        only_accelerometer = false;
+    }
+}
+
+void MotionInput::SetQuaternion(const Common::Quaternion<f32>& quaternion) {
+    quat = quaternion;
+}
+
+void MotionInput::SetGyroDrift(const Common::Vec3f& drift) {
+    gyro_drift = drift;
+}
+
+void MotionInput::SetGyroThreshold(f32 threshold) {
+    gyro_threshold = threshold;
+}
+
+void MotionInput::EnableReset(bool reset) {
+    reset_enabled = reset;
+}
+
+void MotionInput::ResetRotations() {
+    rotations = {};
+}
+
+bool MotionInput::IsMoving(f32 sensitivity) const {
+    return gyro.Length() >= sensitivity || accel.Length() <= 0.9f || accel.Length() >= 1.1f;
+}
+
+bool MotionInput::IsCalibrated(f32 sensitivity) const {
+    return real_error.Length() < sensitivity;
+}
+
+void MotionInput::UpdateRotation(u64 elapsed_time) {
+    const auto sample_period = static_cast<f32>(elapsed_time) / 1000000.0f;
+    if (sample_period > 0.1f) {
+        return;
+    }
+    rotations += gyro * sample_period;
+}
+
+// Based on Madgwick's implementation of Mayhony's AHRS algorithm.
+// 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
+void MotionInput::UpdateOrientation(u64 elapsed_time) {
+    if (!IsCalibrated(0.1f)) {
+        ResetOrientation();
+    }
+    // Short name local variable for readability
+    f32 q1 = quat.w;
+    f32 q2 = quat.xyz[0];
+    f32 q3 = quat.xyz[1];
+    f32 q4 = quat.xyz[2];
+    const auto sample_period = static_cast<f32>(elapsed_time) / 1000000.0f;
+
+    // Ignore invalid elapsed time
+    if (sample_period > 0.1f) {
+        return;
+    }
+
+    const auto normal_accel = accel.Normalized();
+    auto rad_gyro = gyro * Common::PI * 2;
+    const f32 swap = rad_gyro.x;
+    rad_gyro.x = rad_gyro.y;
+    rad_gyro.y = -swap;
+    rad_gyro.z = -rad_gyro.z;
+
+    // Clear gyro values if there is no gyro present
+    if (only_accelerometer) {
+        rad_gyro.x = 0;
+        rad_gyro.y = 0;
+        rad_gyro.z = 0;
+    }
+
+    // Ignore drift correction if acceleration is not reliable
+    if (accel.Length() >= 0.75f && accel.Length() <= 1.25f) {
+        const f32 ax = -normal_accel.x;
+        const f32 ay = normal_accel.y;
+        const f32 az = -normal_accel.z;
+
+        // Estimated direction of gravity
+        const f32 vx = 2.0f * (q2 * q4 - q1 * q3);
+        const f32 vy = 2.0f * (q1 * q2 + q3 * q4);
+        const f32 vz = q1 * q1 - q2 * q2 - q3 * q3 + q4 * q4;
+
+        // Error is cross product between estimated direction and measured direction of gravity
+        const Common::Vec3f new_real_error = {
+            az * vx - ax * vz,
+            ay * vz - az * vy,
+            ax * vy - ay * vx,
+        };
+
+        derivative_error = new_real_error - real_error;
+        real_error = new_real_error;
+
+        // Prevent integral windup
+        if (ki != 0.0f && !IsCalibrated(0.05f)) {
+            integral_error += real_error;
+        } else {
+            integral_error = {};
+        }
+
+        // Apply feedback terms
+        if (!only_accelerometer) {
+            rad_gyro += kp * real_error;
+            rad_gyro += ki * integral_error;
+            rad_gyro += kd * derivative_error;
+        } else {
+            // Give more weight to accelerometer values to compensate for the lack of gyro
+            rad_gyro += 35.0f * kp * real_error;
+            rad_gyro += 10.0f * ki * integral_error;
+            rad_gyro += 10.0f * kd * derivative_error;
+
+            // Emulate gyro values for games that need them
+            gyro.x = -rad_gyro.y;
+            gyro.y = rad_gyro.x;
+            gyro.z = -rad_gyro.z;
+            UpdateRotation(elapsed_time);
+        }
+    }
+
+    const f32 gx = rad_gyro.y;
+    const f32 gy = rad_gyro.x;
+    const f32 gz = rad_gyro.z;
+
+    // Integrate rate of change of quaternion
+    const f32 pa = q2;
+    const f32 pb = q3;
+    const f32 pc = q4;
+    q1 = q1 + (-q2 * gx - q3 * gy - q4 * gz) * (0.5f * sample_period);
+    q2 = pa + (q1 * gx + pb * gz - pc * gy) * (0.5f * sample_period);
+    q3 = pb + (q1 * gy - pa * gz + pc * gx) * (0.5f * sample_period);
+    q4 = pc + (q1 * gz + pa * gy - pb * gx) * (0.5f * sample_period);
+
+    quat.w = q1;
+    quat.xyz[0] = q2;
+    quat.xyz[1] = q3;
+    quat.xyz[2] = q4;
+    quat = quat.Normalized();
+}
+
+std::array<Common::Vec3f, 3> MotionInput::GetOrientation() const {
+    const Common::Quaternion<float> quad{
+        .xyz = {-quat.xyz[1], -quat.xyz[0], -quat.w},
+        .w = -quat.xyz[2],
+    };
+    const std::array<float, 16> matrix4x4 = quad.ToMatrix();
+
+    return {Common::Vec3f(matrix4x4[0], matrix4x4[1], -matrix4x4[2]),
+            Common::Vec3f(matrix4x4[4], matrix4x4[5], -matrix4x4[6]),
+            Common::Vec3f(-matrix4x4[8], -matrix4x4[9], matrix4x4[10])};
+}
+
+Common::Vec3f MotionInput::GetAcceleration() const {
+    return accel;
+}
+
+Common::Vec3f MotionInput::GetGyroscope() const {
+    return gyro;
+}
+
+Common::Quaternion<f32> MotionInput::GetQuaternion() const {
+    return quat;
+}
+
+Common::Vec3f MotionInput::GetRotations() const {
+    return rotations;
+}
+
+void MotionInput::ResetOrientation() {
+    if (!reset_enabled || only_accelerometer) {
+        return;
+    }
+    if (!IsMoving(0.5f) && accel.z <= -0.9f) {
+        ++reset_counter;
+        if (reset_counter > 900) {
+            quat.w = 0;
+            quat.xyz[0] = 0;
+            quat.xyz[1] = 0;
+            quat.xyz[2] = -1;
+            SetOrientationFromAccelerometer();
+            integral_error = {};
+            reset_counter = 0;
+        }
+    } else {
+        reset_counter = 0;
+    }
+}
+
+void MotionInput::SetOrientationFromAccelerometer() {
+    int iterations = 0;
+    const f32 sample_period = 0.015f;
+
+    const auto normal_accel = accel.Normalized();
+
+    while (!IsCalibrated(0.01f) && ++iterations < 100) {
+        // Short name local variable for readability
+        f32 q1 = quat.w;
+        f32 q2 = quat.xyz[0];
+        f32 q3 = quat.xyz[1];
+        f32 q4 = quat.xyz[2];
+
+        Common::Vec3f rad_gyro;
+        const f32 ax = -normal_accel.x;
+        const f32 ay = normal_accel.y;
+        const f32 az = -normal_accel.z;
+
+        // Estimated direction of gravity
+        const f32 vx = 2.0f * (q2 * q4 - q1 * q3);
+        const f32 vy = 2.0f * (q1 * q2 + q3 * q4);
+        const f32 vz = q1 * q1 - q2 * q2 - q3 * q3 + q4 * q4;
+
+        // Error is cross product between estimated direction and measured direction of gravity
+        const Common::Vec3f new_real_error = {
+            az * vx - ax * vz,
+            ay * vz - az * vy,
+            ax * vy - ay * vx,
+        };
+
+        derivative_error = new_real_error - real_error;
+        real_error = new_real_error;
+
+        rad_gyro += 10.0f * kp * real_error;
+        rad_gyro += 5.0f * ki * integral_error;
+        rad_gyro += 10.0f * kd * derivative_error;
+
+        const f32 gx = rad_gyro.y;
+        const f32 gy = rad_gyro.x;
+        const f32 gz = rad_gyro.z;
+
+        // Integrate rate of change of quaternion
+        const f32 pa = q2;
+        const f32 pb = q3;
+        const f32 pc = q4;
+        q1 = q1 + (-q2 * gx - q3 * gy - q4 * gz) * (0.5f * sample_period);
+        q2 = pa + (q1 * gx + pb * gz - pc * gy) * (0.5f * sample_period);
+        q3 = pb + (q1 * gy - pa * gz + pc * gx) * (0.5f * sample_period);
+        q4 = pc + (q1 * gz + pa * gy - pb * gx) * (0.5f * sample_period);
+
+        quat.w = q1;
+        quat.xyz[0] = q2;
+        quat.xyz[1] = q3;
+        quat.xyz[2] = q4;
+        quat = quat.Normalized();
+    }
+}
+} // namespace Core::HID

src/core/hid/motion_input.h

@@ -0,0 +1,87 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include "common/common_types.h"
+#include "common/quaternion.h"
+#include "common/vector_math.h"
+
+namespace Core::HID {
+
+class MotionInput {
+public:
+    explicit MotionInput();
+
+    MotionInput(const MotionInput&) = default;
+    MotionInput& operator=(const MotionInput&) = default;
+
+    MotionInput(MotionInput&&) = default;
+    MotionInput& operator=(MotionInput&&) = default;
+
+    void SetPID(f32 new_kp, f32 new_ki, f32 new_kd);
+    void SetAcceleration(const Common::Vec3f& acceleration);
+    void SetGyroscope(const Common::Vec3f& gyroscope);
+    void SetQuaternion(const Common::Quaternion<f32>& quaternion);
+    void SetGyroDrift(const Common::Vec3f& drift);
+    void SetGyroThreshold(f32 threshold);
+
+    void EnableReset(bool reset);
+    void ResetRotations();
+
+    void UpdateRotation(u64 elapsed_time);
+    void UpdateOrientation(u64 elapsed_time);
+
+    [[nodiscard]] std::array<Common::Vec3f, 3> GetOrientation() const;
+    [[nodiscard]] Common::Vec3f GetAcceleration() const;
+    [[nodiscard]] Common::Vec3f GetGyroscope() const;
+    [[nodiscard]] Common::Vec3f GetRotations() const;
+    [[nodiscard]] Common::Quaternion<f32> GetQuaternion() const;
+
+    [[nodiscard]] bool IsMoving(f32 sensitivity) const;
+    [[nodiscard]] bool IsCalibrated(f32 sensitivity) const;
+
+private:
+    void ResetOrientation();
+    void SetOrientationFromAccelerometer();
+
+    // PID constants
+    f32 kp;
+    f32 ki;
+    f32 kd;
+
+    // PID errors
+    Common::Vec3f real_error;
+    Common::Vec3f integral_error;
+    Common::Vec3f derivative_error;
+
+    // Quaternion containing the device orientation
+    Common::Quaternion<f32> quat{{0.0f, 0.0f, -1.0f}, 0.0f};
+
+    // Number of full rotations in each axis
+    Common::Vec3f rotations;
+
+    // Acceleration vector measurement in G force
+    Common::Vec3f accel;
+
+    // Gyroscope vector measurement in radians/s.
+    Common::Vec3f gyro;
+
+    // Vector to be substracted from gyro measurements
+    Common::Vec3f gyro_drift;
+
+    // Minimum gyro amplitude to detect if the device is moving
+    f32 gyro_threshold = 0.0f;
+
+    // Number of invalid secuential data
+    u32 reset_counter = 0;
+
+    // If the provided data is invalid the device will be autocalibrated
+    bool reset_enabled = true;
+
+    // Use accelerometer values to calculate position
+    bool only_accelerometer = true;
+};
+
+} // namespace Core::HID

src/core/hle/service/am/applets/applet_controller.cpp

@@ -10,6 +10,8 @@
 #include "common/string_util.h"
 #include "core/core.h"
 #include "core/frontend/applets/controller.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/hid_core.h"
 #include "core/hle/result.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applets/applet_controller.h"
@@ -25,7 +27,7 @@ namespace Service::AM::Applets {
 static Core::Frontend::ControllerParameters ConvertToFrontendParameters(
     ControllerSupportArgPrivate private_arg, ControllerSupportArgHeader header, bool enable_text,
     std::vector<IdentificationColor> identification_colors, std::vector<ExplainText> text) {
-    HID::Controller_NPad::NpadStyleSet npad_style_set;
+    Core::HID::NpadStyleTag npad_style_set;
     npad_style_set.raw = private_arg.style_set;
 
     return {
@@ -243,19 +245,11 @@ void Controller::Execute() {
 void Controller::ConfigurationComplete() {
     ControllerSupportResultInfo result_info{};
 
-    const auto& players = Settings::values.players.GetValue();
-
     // If enable_single_mode is enabled, player_count is 1 regardless of any other parameters.
     // Otherwise, only count connected players from P1-P8.
-    result_info.player_count =
-        is_single_mode
-            ? 1
-            : static_cast<s8>(std::count_if(players.begin(), players.end() - 2,
-                                            [](const auto& player) { return player.connected; }));
+    result_info.player_count = is_single_mode ? 1 : system.HIDCore().GetPlayerCount();
 
-    result_info.selected_id = HID::Controller_NPad::IndexToNPad(std::distance(
-        players.begin(), std::find_if(players.begin(), players.end(),
-                                      [](const auto& player) { return player.connected; })));
+    result_info.selected_id = static_cast<u32>(system.HIDCore().GetFirstNpadId());
 
     result_info.result = 0;
 

src/core/hle/service/am/applets/applets.cpp

@@ -231,7 +231,7 @@ void AppletManager::SetDefaultAppletFrontendSet() {
 void AppletManager::SetDefaultAppletsIfMissing() {
     if (frontend.controller == nullptr) {
         frontend.controller =
-            std::make_unique<Core::Frontend::DefaultControllerApplet>(system.ServiceManager());
+            std::make_unique<Core::Frontend::DefaultControllerApplet>(system.HIDCore());
     }
 
     if (frontend.error == nullptr) {

src/core/hle/service/hid/controllers/console_sixaxis.cpp

@@ -3,14 +3,19 @@
 // Refer to the license.txt file included.
 
 #include "common/settings.h"
+#include "core/core.h"
 #include "core/core_timing.h"
+#include "core/hid/emulated_console.h"
 #include "core/hle/service/hid/controllers/console_sixaxis.h"
 
 namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x3C200;
 
 Controller_ConsoleSixAxis::Controller_ConsoleSixAxis(Core::System& system_)
-    : ControllerBase{system_} {}
+    : ControllerBase{system_} {
+    console = system.HIDCore().GetEmulatedConsole();
+}
+
 Controller_ConsoleSixAxis::~Controller_ConsoleSixAxis() = default;
 
 void Controller_ConsoleSixAxis::OnInit() {}
@@ -38,25 +43,21 @@ void Controller_ConsoleSixAxis::OnUpdate(const Core::Timing::CoreTiming& core_ti
     cur_entry.sampling_number2 = cur_entry.sampling_number;
 
     // Try to read sixaxis sensor states
-    MotionDevice motion_device{};
-    const auto& device = motions[0];
-    if (device) {
-        std::tie(motion_device.accel, motion_device.gyro, motion_device.rotation,
-                 motion_device.orientation, motion_device.quaternion) = device->GetStatus();
-        console_six_axis.is_seven_six_axis_sensor_at_rest = motion_device.gyro.Length2() < 0.0001f;
-    }
+    const auto motion_status = console->GetMotion();
 
-    cur_entry.accel = motion_device.accel;
+    console_six_axis.is_seven_six_axis_sensor_at_rest = motion_status.is_at_rest;
+
+    cur_entry.accel = motion_status.accel;
     // Zero gyro values as they just mess up with the camera
     // Note: Probably a correct sensivity setting must be set
     cur_entry.gyro = {};
     cur_entry.quaternion = {
         {
-            motion_device.quaternion.xyz.y,
-            motion_device.quaternion.xyz.x,
-            -motion_device.quaternion.w,
+            motion_status.quaternion.xyz.y,
+            motion_status.quaternion.xyz.x,
+            -motion_status.quaternion.w,
         },
-        -motion_device.quaternion.xyz.z,
+        -motion_status.quaternion.xyz.z,
     };
 
     console_six_axis.sampling_number++;
@@ -70,13 +71,6 @@ void Controller_ConsoleSixAxis::OnUpdate(const Core::Timing::CoreTiming& core_ti
     std::memcpy(transfer_memory, &seven_six_axis, sizeof(seven_six_axis));
 }
 
-void Controller_ConsoleSixAxis::OnLoadInputDevices() {
-    const auto player = Settings::values.players.GetValue()[0];
-    std::transform(player.motions.begin() + Settings::NativeMotion::MOTION_HID_BEGIN,
-                   player.motions.begin() + Settings::NativeMotion::MOTION_HID_END, motions.begin(),
-                   Input::CreateDevice<Input::MotionDevice>);
-}
-
 void Controller_ConsoleSixAxis::SetTransferMemoryPointer(u8* t_mem) {
     is_transfer_memory_set = true;
     transfer_memory = t_mem;

src/core/hle/service/hid/controllers/console_sixaxis.h

@@ -5,10 +5,10 @@
 #pragma once
 
 #include <array>
-#include "common/bit_field.h"
 #include "common/common_types.h"
 #include "common/quaternion.h"
-#include "core/frontend/input.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
 
 namespace Service::HID {
@@ -26,9 +26,6 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
     // Called on InitializeSevenSixAxisSensor
     void SetTransferMemoryPointer(u8* t_mem);
 
@@ -38,8 +35,8 @@ public:
 private:
     struct SevenSixAxisState {
         INSERT_PADDING_WORDS(4); // unused
-        s64_le sampling_number{};
-        s64_le sampling_number2{};
+        s64 sampling_number{};
+        s64 sampling_number2{};
         u64 unknown{};
         Common::Vec3f accel{};
         Common::Vec3f gyro{};
@@ -47,14 +44,24 @@ private:
     };
     static_assert(sizeof(SevenSixAxisState) == 0x50, "SevenSixAxisState is an invalid size");
 
+    struct CommonHeader {
+        s64 timestamp;
+        s64 total_entry_count;
+        s64 last_entry_index;
+        s64 entry_count;
+    };
+    static_assert(sizeof(CommonHeader) == 0x20, "CommonHeader is an invalid size");
+
+    // TODO(german77): SevenSixAxisMemory doesn't follow the standard lifo. Investigate
     struct SevenSixAxisMemory {
         CommonHeader header{};
         std::array<SevenSixAxisState, 0x21> sevensixaxis_states{};
     };
     static_assert(sizeof(SevenSixAxisMemory) == 0xA70, "SevenSixAxisMemory is an invalid size");
 
+    // This is nn::hid::detail::ConsoleSixAxisSensorSharedMemoryFormat
     struct ConsoleSharedMemory {
-        u64_le sampling_number{};
+        u64 sampling_number{};
         bool is_seven_six_axis_sensor_at_rest{};
         f32 verticalization_error{};
         Common::Vec3f gyro_bias{};
@@ -69,9 +76,7 @@ private:
         Common::Quaternion<f32> quaternion;
     };
 
-    using MotionArray =
-        std::array<std::unique_ptr<Input::MotionDevice>, Settings::NativeMotion::NUM_MOTIONS_HID>;
-    MotionArray motions;
+    Core::HID::EmulatedConsole* console;
     u8* transfer_memory = nullptr;
     bool is_transfer_memory_set = false;
     ConsoleSharedMemory console_six_axis{};

src/core/hle/service/hid/controllers/controller_base.cpp

@@ -11,7 +11,7 @@ ControllerBase::~ControllerBase() = default;
 
 void ControllerBase::ActivateController() {
     if (is_activated) {
-        OnRelease();
+        return;
     }
     is_activated = true;
     OnInit();

src/core/hle/service/hid/controllers/controller_base.h

@@ -35,9 +35,6 @@ public:
     virtual void OnMotionUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                 std::size_t size) {}
 
-    // Called when input devices should be loaded
-    virtual void OnLoadInputDevices() = 0;
-
     void ActivateController();
 
     void DeactivateController();
@@ -47,14 +44,6 @@ public:
 protected:
     bool is_activated{false};
 
-    struct CommonHeader {
-        s64_le timestamp;
-        s64_le total_entry_count;
-        s64_le last_entry_index;
-        s64_le entry_count;
-    };
-    static_assert(sizeof(CommonHeader) == 0x20, "CommonHeader is an invalid size");
-
     Core::System& system;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/debug_pad.cpp

@@ -5,16 +5,20 @@
 #include <cstring>
 #include "common/common_types.h"
 #include "common/settings.h"
+#include "core/core.h"
 #include "core/core_timing.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/service/hid/controllers/debug_pad.h"
 
 namespace Service::HID {
+constexpr std::size_t SHARED_MEMORY_OFFSET = 0x00000;
 
-constexpr s32 HID_JOYSTICK_MAX = 0x7fff;
-[[maybe_unused]] constexpr s32 HID_JOYSTICK_MIN = -0x7fff;
-enum class JoystickId : std::size_t { Joystick_Left, Joystick_Right };
+Controller_DebugPad::Controller_DebugPad(Core::System& system_) : ControllerBase{system_} {
+    controller = system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Other);
+}
 
-Controller_DebugPad::Controller_DebugPad(Core::System& system_) : ControllerBase{system_} {}
 Controller_DebugPad::~Controller_DebugPad() = default;
 
 void Controller_DebugPad::OnInit() {}
@@ -23,63 +27,29 @@ void Controller_DebugPad::OnRelease() {}
 
 void Controller_DebugPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                    std::size_t size) {
-    shared_memory.header.timestamp = core_timing.GetCPUTicks();
-    shared_memory.header.total_entry_count = 17;
-
     if (!IsControllerActivated()) {
-        shared_memory.header.entry_count = 0;
-        shared_memory.header.last_entry_index = 0;
+        debug_pad_lifo.buffer_count = 0;
+        debug_pad_lifo.buffer_tail = 0;
+        std::memcpy(data + SHARED_MEMORY_OFFSET, &debug_pad_lifo, sizeof(debug_pad_lifo));
         return;
     }
-    shared_memory.header.entry_count = 16;
 
-    const auto& last_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
-    shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
-
-    cur_entry.sampling_number = last_entry.sampling_number + 1;
-    cur_entry.sampling_number2 = cur_entry.sampling_number;
+    const auto& last_entry = debug_pad_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
 
     if (Settings::values.debug_pad_enabled) {
-        cur_entry.attribute.connected.Assign(1);
-        auto& pad = cur_entry.pad_state;
+        next_state.attribute.connected.Assign(1);
 
-        using namespace Settings::NativeButton;
-        pad.a.Assign(buttons[A - BUTTON_HID_BEGIN]->GetStatus());
-        pad.b.Assign(buttons[B - BUTTON_HID_BEGIN]->GetStatus());
-        pad.x.Assign(buttons[X - BUTTON_HID_BEGIN]->GetStatus());
-        pad.y.Assign(buttons[Y - BUTTON_HID_BEGIN]->GetStatus());
-        pad.l.Assign(buttons[L - BUTTON_HID_BEGIN]->GetStatus());
-        pad.r.Assign(buttons[R - BUTTON_HID_BEGIN]->GetStatus());
-        pad.zl.Assign(buttons[ZL - BUTTON_HID_BEGIN]->GetStatus());
-        pad.zr.Assign(buttons[ZR - BUTTON_HID_BEGIN]->GetStatus());
-        pad.plus.Assign(buttons[Plus - BUTTON_HID_BEGIN]->GetStatus());
-        pad.minus.Assign(buttons[Minus - BUTTON_HID_BEGIN]->GetStatus());
-        pad.d_left.Assign(buttons[DLeft - BUTTON_HID_BEGIN]->GetStatus());
-        pad.d_up.Assign(buttons[DUp - BUTTON_HID_BEGIN]->GetStatus());
-        pad.d_right.Assign(buttons[DRight - BUTTON_HID_BEGIN]->GetStatus());
-        pad.d_down.Assign(buttons[DDown - BUTTON_HID_BEGIN]->GetStatus());
+        const auto& button_state = controller->GetDebugPadButtons();
+        const auto& stick_state = controller->GetSticks();
 
-        const auto [stick_l_x_f, stick_l_y_f] =
-            analogs[static_cast<std::size_t>(JoystickId::Joystick_Left)]->GetStatus();
-        const auto [stick_r_x_f, stick_r_y_f] =
-            analogs[static_cast<std::size_t>(JoystickId::Joystick_Right)]->GetStatus();
-        cur_entry.l_stick.x = static_cast<s32>(stick_l_x_f * HID_JOYSTICK_MAX);
-        cur_entry.l_stick.y = static_cast<s32>(stick_l_y_f * HID_JOYSTICK_MAX);
-        cur_entry.r_stick.x = static_cast<s32>(stick_r_x_f * HID_JOYSTICK_MAX);
-        cur_entry.r_stick.y = static_cast<s32>(stick_r_y_f * HID_JOYSTICK_MAX);
+        next_state.pad_state = button_state;
+        next_state.l_stick = stick_state.left;
+        next_state.r_stick = stick_state.right;
     }
 
-    std::memcpy(data, &shared_memory, sizeof(SharedMemory));
+    debug_pad_lifo.WriteNextEntry(next_state);
+    std::memcpy(data + SHARED_MEMORY_OFFSET, &debug_pad_lifo, sizeof(debug_pad_lifo));
 }
 
-void Controller_DebugPad::OnLoadInputDevices() {
-    std::transform(Settings::values.debug_pad_buttons.begin(),
-                   Settings::values.debug_pad_buttons.begin() +
-                       Settings::NativeButton::NUM_BUTTONS_HID,
-                   buttons.begin(), Input::CreateDevice<Input::ButtonDevice>);
-    std::transform(Settings::values.debug_pad_analogs.begin(),
-                   Settings::values.debug_pad_analogs.end(), analogs.begin(),
-                   Input::CreateDevice<Input::AnalogDevice>);
-}
 } // namespace Service::HID

src/core/hle/service/hid/controllers/debug_pad.h

@@ -10,8 +10,14 @@
 #include "common/common_types.h"
 #include "common/settings.h"
 #include "common/swap.h"
-#include "core/frontend/input.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
+
+namespace Core::HID {
+class EmulatedController;
+struct DebugPadButton;
+struct AnalogStickState;
+} // namespace Core::HID
 
 namespace Service::HID {
 class Controller_DebugPad final : public ControllerBase {
@@ -28,66 +34,31 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
 private:
-    struct AnalogStick {
-        s32_le x;
-        s32_le y;
-    };
-    static_assert(sizeof(AnalogStick) == 0x8);
-
-    struct PadState {
+    // This is nn::hid::DebugPadAttribute
+    struct DebugPadAttribute {
         union {
-            u32_le raw{};
-            BitField<0, 1, u32> a;
-            BitField<1, 1, u32> b;
-            BitField<2, 1, u32> x;
-            BitField<3, 1, u32> y;
-            BitField<4, 1, u32> l;
-            BitField<5, 1, u32> r;
-            BitField<6, 1, u32> zl;
-            BitField<7, 1, u32> zr;
-            BitField<8, 1, u32> plus;
-            BitField<9, 1, u32> minus;
-            BitField<10, 1, u32> d_left;
-            BitField<11, 1, u32> d_up;
-            BitField<12, 1, u32> d_right;
-            BitField<13, 1, u32> d_down;
-        };
-    };
-    static_assert(sizeof(PadState) == 0x4, "PadState is an invalid size");
-
-    struct Attributes {
-        union {
-            u32_le raw{};
+            u32 raw{};
             BitField<0, 1, u32> connected;
         };
     };
-    static_assert(sizeof(Attributes) == 0x4, "Attributes is an invalid size");
+    static_assert(sizeof(DebugPadAttribute) == 0x4, "DebugPadAttribute is an invalid size");
 
-    struct PadStates {
-        s64_le sampling_number;
-        s64_le sampling_number2;
-        Attributes attribute;
-        PadState pad_state;
-        AnalogStick r_stick;
-        AnalogStick l_stick;
+    // This is nn::hid::DebugPadState
+    struct DebugPadState {
+        s64 sampling_number;
+        DebugPadAttribute attribute;
+        Core::HID::DebugPadButton pad_state;
+        Core::HID::AnalogStickState r_stick;
+        Core::HID::AnalogStickState l_stick;
     };
-    static_assert(sizeof(PadStates) == 0x28, "PadStates is an invalid state");
+    static_assert(sizeof(DebugPadState) == 0x20, "DebugPadState is an invalid state");
 
-    struct SharedMemory {
-        CommonHeader header;
-        std::array<PadStates, 17> pad_states;
-        INSERT_PADDING_BYTES(0x138);
-    };
-    static_assert(sizeof(SharedMemory) == 0x400, "SharedMemory is an invalid size");
-    SharedMemory shared_memory{};
+    // This is nn::hid::detail::DebugPadLifo
+    Lifo<DebugPadState> debug_pad_lifo{};
+    static_assert(sizeof(debug_pad_lifo) == 0x2C8, "debug_pad_lifo is an invalid size");
+    DebugPadState next_state{};
 
-    std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeButton::NUM_BUTTONS_HID>
-        buttons;
-    std::array<std::unique_ptr<Input::AnalogDevice>, Settings::NativeAnalog::NUM_STICKS_HID>
-        analogs;
+    Core::HID::EmulatedController* controller;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/gesture.cpp

@@ -5,8 +5,10 @@
 #include "common/logging/log.h"
 #include "common/math_util.h"
 #include "common/settings.h"
+#include "core/core.h"
 #include "core/core_timing.h"
 #include "core/frontend/emu_window.h"
+#include "core/hid/hid_core.h"
 #include "core/hle/service/hid/controllers/gesture.h"
 
 namespace Service::HID {
@@ -23,16 +25,14 @@ constexpr f32 Square(s32 num) {
     return static_cast<f32>(num * num);
 }
 
-Controller_Gesture::Controller_Gesture(Core::System& system_) : ControllerBase(system_) {}
+Controller_Gesture::Controller_Gesture(Core::System& system_) : ControllerBase(system_) {
+    console = system.HIDCore().GetEmulatedConsole();
+}
 Controller_Gesture::~Controller_Gesture() = default;
 
 void Controller_Gesture::OnInit() {
-    for (std::size_t id = 0; id < MAX_FINGERS; ++id) {
-        mouse_finger_id[id] = MAX_POINTS;
-        keyboard_finger_id[id] = MAX_POINTS;
-        udp_finger_id[id] = MAX_POINTS;
-    }
-    shared_memory.header.entry_count = 0;
+    gesture_lifo.buffer_count = 0;
+    gesture_lifo.buffer_tail = 0;
     force_update = true;
 }
 
@@ -40,50 +40,38 @@ void Controller_Gesture::OnRelease() {}
 
 void Controller_Gesture::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                   std::size_t size) {
-    shared_memory.header.timestamp = core_timing.GetCPUTicks();
-    shared_memory.header.total_entry_count = 17;
-
     if (!IsControllerActivated()) {
-        shared_memory.header.entry_count = 0;
-        shared_memory.header.last_entry_index = 0;
+        gesture_lifo.buffer_count = 0;
+        gesture_lifo.buffer_tail = 0;
+        std::memcpy(data + SHARED_MEMORY_OFFSET, &gesture_lifo, sizeof(gesture_lifo));
         return;
     }
 
     ReadTouchInput();
 
     GestureProperties gesture = GetGestureProperties();
-    f32 time_difference = static_cast<f32>(shared_memory.header.timestamp - last_update_timestamp) /
-                          (1000 * 1000 * 1000);
+    f32 time_difference =
+        static_cast<f32>(gesture_lifo.timestamp - last_update_timestamp) / (1000 * 1000 * 1000);
 
     // Only update if necesary
     if (!ShouldUpdateGesture(gesture, time_difference)) {
         return;
     }
 
-    last_update_timestamp = shared_memory.header.timestamp;
+    last_update_timestamp = gesture_lifo.timestamp;
     UpdateGestureSharedMemory(data, size, gesture, time_difference);
 }
 
 void Controller_Gesture::ReadTouchInput() {
-    const Input::TouchStatus& mouse_status = touch_mouse_device->GetStatus();
-    const Input::TouchStatus& udp_status = touch_udp_device->GetStatus();
-    for (std::size_t id = 0; id < mouse_status.size(); ++id) {
-        mouse_finger_id[id] = UpdateTouchInputEvent(mouse_status[id], mouse_finger_id[id]);
-        udp_finger_id[id] = UpdateTouchInputEvent(udp_status[id], udp_finger_id[id]);
-    }
-
-    if (Settings::values.use_touch_from_button) {
-        const Input::TouchStatus& keyboard_status = touch_btn_device->GetStatus();
-        for (std::size_t id = 0; id < mouse_status.size(); ++id) {
-            keyboard_finger_id[id] =
-                UpdateTouchInputEvent(keyboard_status[id], keyboard_finger_id[id]);
-        }
+    const auto touch_status = console->GetTouch();
+    for (std::size_t id = 0; id < fingers.size(); ++id) {
+        fingers[id] = touch_status[id];
     }
 }
 
 bool Controller_Gesture::ShouldUpdateGesture(const GestureProperties& gesture,
                                              f32 time_difference) {
-    const auto& last_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
+    const auto& last_entry = GetLastGestureEntry();
     if (force_update) {
         force_update = false;
         return true;
@@ -97,7 +85,7 @@ bool Controller_Gesture::ShouldUpdateGesture(const GestureProperties& gesture,
     }
 
     // Update on press and hold event after 0.5 seconds
-    if (last_entry.type == TouchType::Touch && last_entry.point_count == 1 &&
+    if (last_entry.type == GestureType::Touch && last_entry.point_count == 1 &&
         time_difference > press_delay) {
         return enable_press_and_tap;
     }
@@ -108,27 +96,19 @@ bool Controller_Gesture::ShouldUpdateGesture(const GestureProperties& gesture,
 void Controller_Gesture::UpdateGestureSharedMemory(u8* data, std::size_t size,
                                                    GestureProperties& gesture,
                                                    f32 time_difference) {
-    TouchType type = TouchType::Idle;
-    Attribute attributes{};
+    GestureType type = GestureType::Idle;
+    GestureAttribute attributes{};
 
-    const auto& last_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
-    shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
+    const auto& last_entry = gesture_lifo.ReadCurrentEntry().state;
 
-    if (shared_memory.header.entry_count < 16) {
-        shared_memory.header.entry_count++;
-    }
-
-    cur_entry.sampling_number = last_entry.sampling_number + 1;
-    cur_entry.sampling_number2 = cur_entry.sampling_number;
-
-    // Reset values to default
-    cur_entry.delta = {};
-    cur_entry.vel_x = 0;
-    cur_entry.vel_y = 0;
-    cur_entry.direction = Direction::None;
-    cur_entry.rotation_angle = 0;
-    cur_entry.scale = 0;
+    // Reset next state to default
+    next_state.sampling_number = last_entry.sampling_number + 1;
+    next_state.delta = {};
+    next_state.vel_x = 0;
+    next_state.vel_y = 0;
+    next_state.direction = GestureDirection::None;
+    next_state.rotation_angle = 0;
+    next_state.scale = 0;
 
     if (gesture.active_points > 0) {
         if (last_gesture.active_points == 0) {
@@ -141,46 +121,47 @@ void Controller_Gesture::UpdateGestureSharedMemory(u8* data, std::size_t size,
     }
 
     // Apply attributes
-    cur_entry.detection_count = gesture.detection_count;
-    cur_entry.type = type;
-    cur_entry.attributes = attributes;
-    cur_entry.pos = gesture.mid_point;
-    cur_entry.point_count = static_cast<s32>(gesture.active_points);
-    cur_entry.points = gesture.points;
+    next_state.detection_count = gesture.detection_count;
+    next_state.type = type;
+    next_state.attributes = attributes;
+    next_state.pos = gesture.mid_point;
+    next_state.point_count = static_cast<s32>(gesture.active_points);
+    next_state.points = gesture.points;
     last_gesture = gesture;
 
-    std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(SharedMemory));
+    gesture_lifo.WriteNextEntry(next_state);
+    std::memcpy(data + SHARED_MEMORY_OFFSET, &gesture_lifo, sizeof(gesture_lifo));
 }
 
-void Controller_Gesture::NewGesture(GestureProperties& gesture, TouchType& type,
-                                    Attribute& attributes) {
+void Controller_Gesture::NewGesture(GestureProperties& gesture, GestureType& type,
+                                    GestureAttribute& attributes) {
     const auto& last_entry = GetLastGestureEntry();
 
     gesture.detection_count++;
-    type = TouchType::Touch;
+    type = GestureType::Touch;
 
     // New touch after cancel is not considered new
-    if (last_entry.type != TouchType::Cancel) {
+    if (last_entry.type != GestureType::Cancel) {
         attributes.is_new_touch.Assign(1);
         enable_press_and_tap = true;
     }
 }
 
-void Controller_Gesture::UpdateExistingGesture(GestureProperties& gesture, TouchType& type,
+void Controller_Gesture::UpdateExistingGesture(GestureProperties& gesture, GestureType& type,
                                                f32 time_difference) {
     const auto& last_entry = GetLastGestureEntry();
 
     // Promote to pan type if touch moved
     for (size_t id = 0; id < MAX_POINTS; id++) {
         if (gesture.points[id] != last_gesture.points[id]) {
-            type = TouchType::Pan;
+            type = GestureType::Pan;
             break;
         }
     }
 
     // Number of fingers changed cancel the last event and clear data
     if (gesture.active_points != last_gesture.active_points) {
-        type = TouchType::Cancel;
+        type = GestureType::Cancel;
         enable_press_and_tap = false;
         gesture.active_points = 0;
         gesture.mid_point = {};
@@ -189,41 +170,41 @@ void Controller_Gesture::UpdateExistingGesture(GestureProperties& gesture, Touch
     }
 
     // Calculate extra parameters of panning
-    if (type == TouchType::Pan) {
+    if (type == GestureType::Pan) {
         UpdatePanEvent(gesture, last_gesture, type, time_difference);
         return;
     }
 
     // Promote to press type
-    if (last_entry.type == TouchType::Touch) {
-        type = TouchType::Press;
+    if (last_entry.type == GestureType::Touch) {
+        type = GestureType::Press;
     }
 }
 
 void Controller_Gesture::EndGesture(GestureProperties& gesture,
-                                    GestureProperties& last_gesture_props, TouchType& type,
-                                    Attribute& attributes, f32 time_difference) {
+                                    GestureProperties& last_gesture_props, GestureType& type,
+                                    GestureAttribute& attributes, f32 time_difference) {
     const auto& last_entry = GetLastGestureEntry();
 
     if (last_gesture_props.active_points != 0) {
         switch (last_entry.type) {
-        case TouchType::Touch:
+        case GestureType::Touch:
             if (enable_press_and_tap) {
                 SetTapEvent(gesture, last_gesture_props, type, attributes);
                 return;
             }
-            type = TouchType::Cancel;
+            type = GestureType::Cancel;
             force_update = true;
             break;
-        case TouchType::Press:
-        case TouchType::Tap:
-        case TouchType::Swipe:
-        case TouchType::Pinch:
-        case TouchType::Rotate:
-            type = TouchType::Complete;
+        case GestureType::Press:
+        case GestureType::Tap:
+        case GestureType::Swipe:
+        case GestureType::Pinch:
+        case GestureType::Rotate:
+            type = GestureType::Complete;
             force_update = true;
             break;
-        case TouchType::Pan:
+        case GestureType::Pan:
             EndPanEvent(gesture, last_gesture_props, type, time_difference);
             break;
         default:
@@ -231,15 +212,15 @@ void Controller_Gesture::EndGesture(GestureProperties& gesture,
         }
         return;
     }
-    if (last_entry.type == TouchType::Complete || last_entry.type == TouchType::Cancel) {
+    if (last_entry.type == GestureType::Complete || last_entry.type == GestureType::Cancel) {
         gesture.detection_count++;
     }
 }
 
 void Controller_Gesture::SetTapEvent(GestureProperties& gesture,
-                                     GestureProperties& last_gesture_props, TouchType& type,
-                                     Attribute& attributes) {
-    type = TouchType::Tap;
+                                     GestureProperties& last_gesture_props, GestureType& type,
+                                     GestureAttribute& attributes) {
+    type = GestureType::Tap;
     gesture = last_gesture_props;
     force_update = true;
     f32 tap_time_difference =
@@ -251,44 +232,42 @@ void Controller_Gesture::SetTapEvent(GestureProperties& gesture,
 }
 
 void Controller_Gesture::UpdatePanEvent(GestureProperties& gesture,
-                                        GestureProperties& last_gesture_props, TouchType& type,
+                                        GestureProperties& last_gesture_props, GestureType& type,
                                         f32 time_difference) {
-    auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
     const auto& last_entry = GetLastGestureEntry();
 
-    cur_entry.delta = gesture.mid_point - last_entry.pos;
-    cur_entry.vel_x = static_cast<f32>(cur_entry.delta.x) / time_difference;
-    cur_entry.vel_y = static_cast<f32>(cur_entry.delta.y) / time_difference;
+    next_state.delta = gesture.mid_point - last_entry.pos;
+    next_state.vel_x = static_cast<f32>(next_state.delta.x) / time_difference;
+    next_state.vel_y = static_cast<f32>(next_state.delta.y) / time_difference;
     last_pan_time_difference = time_difference;
 
     // Promote to pinch type
     if (std::abs(gesture.average_distance - last_gesture_props.average_distance) >
         pinch_threshold) {
-        type = TouchType::Pinch;
-        cur_entry.scale = gesture.average_distance / last_gesture_props.average_distance;
+        type = GestureType::Pinch;
+        next_state.scale = gesture.average_distance / last_gesture_props.average_distance;
     }
 
     const f32 angle_between_two_lines = std::atan((gesture.angle - last_gesture_props.angle) /
                                                   (1 + (gesture.angle * last_gesture_props.angle)));
     // Promote to rotate type
     if (std::abs(angle_between_two_lines) > angle_threshold) {
-        type = TouchType::Rotate;
-        cur_entry.scale = 0;
-        cur_entry.rotation_angle = angle_between_two_lines * 180.0f / Common::PI;
+        type = GestureType::Rotate;
+        next_state.scale = 0;
+        next_state.rotation_angle = angle_between_two_lines * 180.0f / Common::PI;
     }
 }
 
 void Controller_Gesture::EndPanEvent(GestureProperties& gesture,
-                                     GestureProperties& last_gesture_props, TouchType& type,
+                                     GestureProperties& last_gesture_props, GestureType& type,
                                      f32 time_difference) {
-    auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
     const auto& last_entry = GetLastGestureEntry();
-    cur_entry.vel_x =
+    next_state.vel_x =
         static_cast<f32>(last_entry.delta.x) / (last_pan_time_difference + time_difference);
-    cur_entry.vel_y =
+    next_state.vel_y =
         static_cast<f32>(last_entry.delta.y) / (last_pan_time_difference + time_difference);
     const f32 curr_vel =
-        std::sqrt((cur_entry.vel_x * cur_entry.vel_x) + (cur_entry.vel_y * cur_entry.vel_y));
+        std::sqrt((next_state.vel_x * next_state.vel_x) + (next_state.vel_y * next_state.vel_y));
 
     // Set swipe event with parameters
     if (curr_vel > swipe_threshold) {
@@ -297,105 +276,50 @@ void Controller_Gesture::EndPanEvent(GestureProperties& gesture,
     }
 
     // End panning without swipe
-    type = TouchType::Complete;
-    cur_entry.vel_x = 0;
-    cur_entry.vel_y = 0;
+    type = GestureType::Complete;
+    next_state.vel_x = 0;
+    next_state.vel_y = 0;
     force_update = true;
 }
 
 void Controller_Gesture::SetSwipeEvent(GestureProperties& gesture,
-                                       GestureProperties& last_gesture_props, TouchType& type) {
-    auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
+                                       GestureProperties& last_gesture_props, GestureType& type) {
     const auto& last_entry = GetLastGestureEntry();
 
-    type = TouchType::Swipe;
+    type = GestureType::Swipe;
     gesture = last_gesture_props;
     force_update = true;
-    cur_entry.delta = last_entry.delta;
+    next_state.delta = last_entry.delta;
 
-    if (std::abs(cur_entry.delta.x) > std::abs(cur_entry.delta.y)) {
-        if (cur_entry.delta.x > 0) {
-            cur_entry.direction = Direction::Right;
+    if (std::abs(next_state.delta.x) > std::abs(next_state.delta.y)) {
+        if (next_state.delta.x > 0) {
+            next_state.direction = GestureDirection::Right;
             return;
         }
-        cur_entry.direction = Direction::Left;
+        next_state.direction = GestureDirection::Left;
         return;
     }
-    if (cur_entry.delta.y > 0) {
-        cur_entry.direction = Direction::Down;
+    if (next_state.delta.y > 0) {
+        next_state.direction = GestureDirection::Down;
         return;
     }
-    cur_entry.direction = Direction::Up;
-}
-
-void Controller_Gesture::OnLoadInputDevices() {
-    touch_mouse_device = Input::CreateDevice<Input::TouchDevice>("engine:emu_window");
-    touch_udp_device = Input::CreateDevice<Input::TouchDevice>("engine:cemuhookudp");
-    touch_btn_device = Input::CreateDevice<Input::TouchDevice>("engine:touch_from_button");
-}
-
-std::optional<std::size_t> Controller_Gesture::GetUnusedFingerID() const {
-    // Dont assign any touch input to a point if disabled
-    if (!Settings::values.touchscreen.enabled) {
-        return std::nullopt;
-    }
-    std::size_t first_free_id = 0;
-    while (first_free_id < MAX_POINTS) {
-        if (!fingers[first_free_id].pressed) {
-            return first_free_id;
-        } else {
-            first_free_id++;
-        }
-    }
-    return std::nullopt;
-}
-
-Controller_Gesture::GestureState& Controller_Gesture::GetLastGestureEntry() {
-    return shared_memory.gesture_states[(shared_memory.header.last_entry_index + 16) % 17];
+    next_state.direction = GestureDirection::Up;
 }
 
 const Controller_Gesture::GestureState& Controller_Gesture::GetLastGestureEntry() const {
-    return shared_memory.gesture_states[(shared_memory.header.last_entry_index + 16) % 17];
-}
-
-std::size_t Controller_Gesture::UpdateTouchInputEvent(
-    const std::tuple<float, float, bool>& touch_input, std::size_t finger_id) {
-    const auto& [x, y, pressed] = touch_input;
-    if (finger_id > MAX_POINTS) {
-        LOG_ERROR(Service_HID, "Invalid finger id {}", finger_id);
-        return MAX_POINTS;
-    }
-    if (pressed) {
-        if (finger_id == MAX_POINTS) {
-            const auto first_free_id = GetUnusedFingerID();
-            if (!first_free_id) {
-                // Invalid finger id do nothing
-                return MAX_POINTS;
-            }
-            finger_id = first_free_id.value();
-            fingers[finger_id].pressed = true;
-        }
-        fingers[finger_id].pos = {x, y};
-        return finger_id;
-    }
-
-    if (finger_id != MAX_POINTS) {
-        fingers[finger_id].pressed = false;
-    }
-
-    return MAX_POINTS;
+    return gesture_lifo.ReadCurrentEntry().state;
 }
 
 Controller_Gesture::GestureProperties Controller_Gesture::GetGestureProperties() {
     GestureProperties gesture;
-    std::array<Finger, MAX_POINTS> active_fingers;
+    std::array<Core::HID::TouchFinger, MAX_POINTS> active_fingers;
     const auto end_iter = std::copy_if(fingers.begin(), fingers.end(), active_fingers.begin(),
                                        [](const auto& finger) { return finger.pressed; });
     gesture.active_points =
         static_cast<std::size_t>(std::distance(active_fingers.begin(), end_iter));
 
     for (size_t id = 0; id < gesture.active_points; ++id) {
-        const auto& [active_x, active_y] = active_fingers[id].pos;
+        const auto& [active_x, active_y] = active_fingers[id].position;
         gesture.points[id] = {
             .x = static_cast<s32>(active_x * Layout::ScreenUndocked::Width),
             .y = static_cast<s32>(active_y * Layout::ScreenUndocked::Height),

src/core/hle/service/hid/controllers/gesture.h

@@ -8,8 +8,9 @@
 #include "common/bit_field.h"
 #include "common/common_types.h"
 #include "common/point.h"
-#include "core/frontend/input.h"
+#include "core/hid/emulated_console.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
 
 namespace Service::HID {
 class Controller_Gesture final : public ControllerBase {
@@ -26,14 +27,12 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
 private:
     static constexpr size_t MAX_FINGERS = 16;
     static constexpr size_t MAX_POINTS = 4;
 
-    enum class TouchType : u32 {
+    // This is nn::hid::GestureType
+    enum class GestureType : u32 {
         Idle,     // Nothing touching the screen
         Complete, // Set at the end of a touch event
         Cancel,   // Set when the number of fingers change
@@ -46,7 +45,8 @@ private:
         Rotate,   // All points rotating from the midpoint
     };
 
-    enum class Direction : u32 {
+    // This is nn::hid::GestureDirection
+    enum class GestureDirection : u32 {
         None,
         Left,
         Up,
@@ -54,51 +54,41 @@ private:
         Down,
     };
 
-    struct Attribute {
+    // This is nn::hid::GestureAttribute
+    struct GestureAttribute {
         union {
-            u32_le raw{};
+            u32 raw{};
 
             BitField<4, 1, u32> is_new_touch;
             BitField<8, 1, u32> is_double_tap;
         };
     };
-    static_assert(sizeof(Attribute) == 4, "Attribute is an invalid size");
+    static_assert(sizeof(GestureAttribute) == 4, "GestureAttribute is an invalid size");
 
+    // This is nn::hid::GestureState
     struct GestureState {
-        s64_le sampling_number;
-        s64_le sampling_number2;
-        s64_le detection_count;
-        TouchType type;
-        Direction direction;
-        Common::Point<s32_le> pos;
-        Common::Point<s32_le> delta;
+        s64 sampling_number;
+        s64 detection_count;
+        GestureType type;
+        GestureDirection direction;
+        Common::Point<s32> pos;
+        Common::Point<s32> delta;
         f32 vel_x;
         f32 vel_y;
-        Attribute attributes;
+        GestureAttribute attributes;
         f32 scale;
         f32 rotation_angle;
-        s32_le point_count;
-        std::array<Common::Point<s32_le>, 4> points;
-    };
-    static_assert(sizeof(GestureState) == 0x68, "GestureState is an invalid size");
-
-    struct SharedMemory {
-        CommonHeader header;
-        std::array<GestureState, 17> gesture_states;
-    };
-    static_assert(sizeof(SharedMemory) == 0x708, "SharedMemory is an invalid size");
-
-    struct Finger {
-        Common::Point<f32> pos{};
-        bool pressed{};
+        s32 point_count;
+        std::array<Common::Point<s32>, 4> points;
     };
+    static_assert(sizeof(GestureState) == 0x60, "GestureState is an invalid size");
 
     struct GestureProperties {
-        std::array<Common::Point<s32_le>, MAX_POINTS> points{};
+        std::array<Common::Point<s32>, MAX_POINTS> points{};
         std::size_t active_points{};
-        Common::Point<s32_le> mid_point{};
-        s64_le detection_count{};
-        u64_le delta_time{};
+        Common::Point<s32> mid_point{};
+        s64 detection_count{};
+        u64 delta_time{};
         f32 average_distance{};
         f32 angle{};
     };
@@ -114,61 +104,48 @@ private:
                                    f32 time_difference);
 
     // Initializes new gesture
-    void NewGesture(GestureProperties& gesture, TouchType& type, Attribute& attributes);
+    void NewGesture(GestureProperties& gesture, GestureType& type, GestureAttribute& attributes);
 
     // Updates existing gesture state
-    void UpdateExistingGesture(GestureProperties& gesture, TouchType& type, f32 time_difference);
+    void UpdateExistingGesture(GestureProperties& gesture, GestureType& type, f32 time_difference);
 
     // Terminates exiting gesture
     void EndGesture(GestureProperties& gesture, GestureProperties& last_gesture_props,
-                    TouchType& type, Attribute& attributes, f32 time_difference);
+                    GestureType& type, GestureAttribute& attributes, f32 time_difference);
 
     // Set current event to a tap event
     void SetTapEvent(GestureProperties& gesture, GestureProperties& last_gesture_props,
-                     TouchType& type, Attribute& attributes);
+                     GestureType& type, GestureAttribute& attributes);
 
     // Calculates and set the extra parameters related to a pan event
     void UpdatePanEvent(GestureProperties& gesture, GestureProperties& last_gesture_props,
-                        TouchType& type, f32 time_difference);
+                        GestureType& type, f32 time_difference);
 
     // Terminates the pan event
     void EndPanEvent(GestureProperties& gesture, GestureProperties& last_gesture_props,
-                     TouchType& type, f32 time_difference);
+                     GestureType& type, f32 time_difference);
 
     // Set current event to a swipe event
     void SetSwipeEvent(GestureProperties& gesture, GestureProperties& last_gesture_props,
-                       TouchType& type);
-
-    // Returns an unused finger id, if there is no fingers available std::nullopt is returned.
-    [[nodiscard]] std::optional<size_t> GetUnusedFingerID() const;
+                       GestureType& type);
 
     // Retrieves the last gesture entry, as indicated by shared memory indices.
-    [[nodiscard]] GestureState& GetLastGestureEntry();
     [[nodiscard]] const GestureState& GetLastGestureEntry() const;
 
-    /**
-     * If the touch is new it tries to assign a new finger id, if there is no fingers available no
-     * changes will be made. Updates the coordinates if the finger id it's already set. If the touch
-     * ends delays the output by one frame to set the end_touch flag before finally freeing the
-     * finger id
-     */
-    size_t UpdateTouchInputEvent(const std::tuple<float, float, bool>& touch_input,
-                                 size_t finger_id);
-
     // Returns the average distance, angle and middle point of the active fingers
     GestureProperties GetGestureProperties();
 
-    SharedMemory shared_memory{};
-    std::unique_ptr<Input::TouchDevice> touch_mouse_device;
-    std::unique_ptr<Input::TouchDevice> touch_udp_device;
-    std::unique_ptr<Input::TouchDevice> touch_btn_device;
-    std::array<size_t, MAX_FINGERS> mouse_finger_id{};
-    std::array<size_t, MAX_FINGERS> keyboard_finger_id{};
-    std::array<size_t, MAX_FINGERS> udp_finger_id{};
-    std::array<Finger, MAX_POINTS> fingers{};
+    // This is nn::hid::detail::GestureLifo
+    Lifo<GestureState> gesture_lifo{};
+    static_assert(sizeof(gesture_lifo) == 0x708, "gesture_lifo is an invalid size");
+    GestureState next_state{};
+
+    Core::HID::EmulatedConsole* console;
+
+    std::array<Core::HID::TouchFinger, MAX_POINTS> fingers{};
     GestureProperties last_gesture{};
-    s64_le last_update_timestamp{};
-    s64_le last_tap_timestamp{};
+    s64 last_update_timestamp{};
+    s64 last_tap_timestamp{};
     f32 last_pan_time_difference{};
     bool force_update{false};
     bool enable_press_and_tap{false};

src/core/hle/service/hid/controllers/keyboard.cpp

@@ -5,14 +5,19 @@
 #include <cstring>
 #include "common/common_types.h"
 #include "common/settings.h"
+#include "core/core.h"
 #include "core/core_timing.h"
+#include "core/hid/emulated_devices.h"
+#include "core/hid/hid_core.h"
 #include "core/hle/service/hid/controllers/keyboard.h"
 
 namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x3800;
-constexpr u8 KEYS_PER_BYTE = 8;
 
-Controller_Keyboard::Controller_Keyboard(Core::System& system_) : ControllerBase{system_} {}
+Controller_Keyboard::Controller_Keyboard(Core::System& system_) : ControllerBase{system_} {
+    emulated_devices = system.HIDCore().GetEmulatedDevices();
+}
+
 Controller_Keyboard::~Controller_Keyboard() = default;
 
 void Controller_Keyboard::OnInit() {}
@@ -21,51 +26,26 @@ void Controller_Keyboard::OnRelease() {}
 
 void Controller_Keyboard::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                    std::size_t size) {
-    shared_memory.header.timestamp = core_timing.GetCPUTicks();
-    shared_memory.header.total_entry_count = 17;
-
     if (!IsControllerActivated()) {
-        shared_memory.header.entry_count = 0;
-        shared_memory.header.last_entry_index = 0;
+        keyboard_lifo.buffer_count = 0;
+        keyboard_lifo.buffer_tail = 0;
+        std::memcpy(data + SHARED_MEMORY_OFFSET, &keyboard_lifo, sizeof(keyboard_lifo));
         return;
     }
-    shared_memory.header.entry_count = 16;
 
-    const auto& last_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
-    shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
+    const auto& last_entry = keyboard_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
 
-    cur_entry.sampling_number = last_entry.sampling_number + 1;
-    cur_entry.sampling_number2 = cur_entry.sampling_number;
-
-    cur_entry.key.fill(0);
     if (Settings::values.keyboard_enabled) {
-        for (std::size_t i = 0; i < keyboard_keys.size(); ++i) {
-            auto& entry = cur_entry.key[i / KEYS_PER_BYTE];
-            entry = static_cast<u8>(entry | (keyboard_keys[i]->GetStatus() << (i % KEYS_PER_BYTE)));
+        const auto& keyboard_state = emulated_devices->GetKeyboard();
+        const auto& keyboard_modifier_state = emulated_devices->GetKeyboardModifier();
+
+        next_state.key = keyboard_state;
+        next_state.modifier = keyboard_modifier_state;
     }
 
-        using namespace Settings::NativeKeyboard;
-
-        // TODO: Assign the correct key to all modifiers
-        cur_entry.modifier.control.Assign(keyboard_mods[LeftControl]->GetStatus());
-        cur_entry.modifier.shift.Assign(keyboard_mods[LeftShift]->GetStatus());
-        cur_entry.modifier.left_alt.Assign(keyboard_mods[LeftAlt]->GetStatus());
-        cur_entry.modifier.right_alt.Assign(keyboard_mods[RightAlt]->GetStatus());
-        cur_entry.modifier.gui.Assign(0);
-        cur_entry.modifier.caps_lock.Assign(keyboard_mods[CapsLock]->GetStatus());
-        cur_entry.modifier.scroll_lock.Assign(keyboard_mods[ScrollLock]->GetStatus());
-        cur_entry.modifier.num_lock.Assign(keyboard_mods[NumLock]->GetStatus());
-        cur_entry.modifier.katakana.Assign(0);
-        cur_entry.modifier.hiragana.Assign(0);
-    }
-    std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(SharedMemory));
+    keyboard_lifo.WriteNextEntry(next_state);
+    std::memcpy(data + SHARED_MEMORY_OFFSET, &keyboard_lifo, sizeof(keyboard_lifo));
 }
 
-void Controller_Keyboard::OnLoadInputDevices() {
-    std::transform(Settings::values.keyboard_keys.begin(), Settings::values.keyboard_keys.end(),
-                   keyboard_keys.begin(), Input::CreateDevice<Input::ButtonDevice>);
-    std::transform(Settings::values.keyboard_mods.begin(), Settings::values.keyboard_mods.end(),
-                   keyboard_mods.begin(), Input::CreateDevice<Input::ButtonDevice>);
-}
 } // namespace Service::HID

src/core/hle/service/hid/controllers/keyboard.h

@@ -10,8 +10,14 @@
 #include "common/common_types.h"
 #include "common/settings.h"
 #include "common/swap.h"
-#include "core/frontend/input.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
+
+namespace Core::HID {
+class EmulatedDevices;
+struct KeyboardModifier;
+struct KeyboardKey;
+} // namespace Core::HID
 
 namespace Service::HID {
 class Controller_Keyboard final : public ControllerBase {
@@ -28,47 +34,20 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
 private:
-    struct Modifiers {
-        union {
-            u32_le raw{};
-            BitField<0, 1, u32> control;
-            BitField<1, 1, u32> shift;
-            BitField<2, 1, u32> left_alt;
-            BitField<3, 1, u32> right_alt;
-            BitField<4, 1, u32> gui;
-            BitField<8, 1, u32> caps_lock;
-            BitField<9, 1, u32> scroll_lock;
-            BitField<10, 1, u32> num_lock;
-            BitField<11, 1, u32> katakana;
-            BitField<12, 1, u32> hiragana;
-        };
-    };
-    static_assert(sizeof(Modifiers) == 0x4, "Modifiers is an invalid size");
-
+    // This is nn::hid::detail::KeyboardState
     struct KeyboardState {
-        s64_le sampling_number;
-        s64_le sampling_number2;
-
-        Modifiers modifier;
-        std::array<u8, 32> key;
+        s64 sampling_number;
+        Core::HID::KeyboardModifier modifier;
+        Core::HID::KeyboardKey key;
     };
-    static_assert(sizeof(KeyboardState) == 0x38, "KeyboardState is an invalid size");
+    static_assert(sizeof(KeyboardState) == 0x30, "KeyboardState is an invalid size");
 
-    struct SharedMemory {
-        CommonHeader header;
-        std::array<KeyboardState, 17> pad_states;
-        INSERT_PADDING_BYTES(0x28);
-    };
-    static_assert(sizeof(SharedMemory) == 0x400, "SharedMemory is an invalid size");
-    SharedMemory shared_memory{};
+    // This is nn::hid::detail::KeyboardLifo
+    Lifo<KeyboardState> keyboard_lifo{};
+    static_assert(sizeof(keyboard_lifo) == 0x3D8, "keyboard_lifo is an invalid size");
+    KeyboardState next_state{};
 
-    std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeKeyboard::NumKeyboardKeys>
-        keyboard_keys;
-    std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeKeyboard::NumKeyboardMods>
-        keyboard_mods;
+    Core::HID::EmulatedDevices* emulated_devices;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/mouse.cpp

@@ -4,14 +4,20 @@
 
 #include <cstring>
 #include "common/common_types.h"
+#include "core/core.h"
 #include "core/core_timing.h"
 #include "core/frontend/emu_window.h"
+#include "core/hid/emulated_devices.h"
+#include "core/hid/hid_core.h"
 #include "core/hle/service/hid/controllers/mouse.h"
 
 namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x3400;
 
-Controller_Mouse::Controller_Mouse(Core::System& system_) : ControllerBase{system_} {}
+Controller_Mouse::Controller_Mouse(Core::System& system_) : ControllerBase{system_} {
+    emulated_devices = system.HIDCore().GetEmulatedDevices();
+}
+
 Controller_Mouse::~Controller_Mouse() = default;
 
 void Controller_Mouse::OnInit() {}
@@ -19,50 +25,33 @@ void Controller_Mouse::OnRelease() {}
 
 void Controller_Mouse::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                 std::size_t size) {
-    shared_memory.header.timestamp = core_timing.GetCPUTicks();
-    shared_memory.header.total_entry_count = 17;
-
     if (!IsControllerActivated()) {
-        shared_memory.header.entry_count = 0;
-        shared_memory.header.last_entry_index = 0;
+        mouse_lifo.buffer_count = 0;
+        mouse_lifo.buffer_tail = 0;
+        std::memcpy(data + SHARED_MEMORY_OFFSET, &mouse_lifo, sizeof(mouse_lifo));
         return;
     }
-    shared_memory.header.entry_count = 16;
 
-    auto& last_entry = shared_memory.mouse_states[shared_memory.header.last_entry_index];
-    shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry = shared_memory.mouse_states[shared_memory.header.last_entry_index];
+    const auto& last_entry = mouse_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
 
-    cur_entry.sampling_number = last_entry.sampling_number + 1;
-    cur_entry.sampling_number2 = cur_entry.sampling_number;
-
-    cur_entry.attribute.raw = 0;
+    next_state.attribute.raw = 0;
     if (Settings::values.mouse_enabled) {
-        const auto [px, py, sx, sy] = mouse_device->GetStatus();
-        const auto x = static_cast<s32>(px * Layout::ScreenUndocked::Width);
-        const auto y = static_cast<s32>(py * Layout::ScreenUndocked::Height);
-        cur_entry.x = x;
-        cur_entry.y = y;
-        cur_entry.delta_x = x - last_entry.x;
-        cur_entry.delta_y = y - last_entry.y;
-        cur_entry.mouse_wheel_x = sx;
-        cur_entry.mouse_wheel_y = sy;
-        cur_entry.attribute.is_connected.Assign(1);
+        const auto& mouse_button_state = emulated_devices->GetMouseButtons();
+        const auto& mouse_position_state = emulated_devices->GetMousePosition();
+        next_state.attribute.is_connected.Assign(1);
+        next_state.x = mouse_position_state.x;
+        next_state.y = mouse_position_state.y;
+        next_state.delta_x = next_state.x - last_entry.x;
+        next_state.delta_y = next_state.y - last_entry.y;
+        next_state.delta_wheel_x = mouse_position_state.delta_wheel_x;
+        next_state.delta_wheel_y = mouse_position_state.delta_wheel_y;
 
-        using namespace Settings::NativeMouseButton;
-        cur_entry.button.left.Assign(mouse_button_devices[Left]->GetStatus());
-        cur_entry.button.right.Assign(mouse_button_devices[Right]->GetStatus());
-        cur_entry.button.middle.Assign(mouse_button_devices[Middle]->GetStatus());
-        cur_entry.button.forward.Assign(mouse_button_devices[Forward]->GetStatus());
-        cur_entry.button.back.Assign(mouse_button_devices[Back]->GetStatus());
+        next_state.button = mouse_button_state;
     }
 
-    std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(SharedMemory));
+    mouse_lifo.WriteNextEntry(next_state);
+    std::memcpy(data + SHARED_MEMORY_OFFSET, &mouse_lifo, sizeof(mouse_lifo));
 }
 
-void Controller_Mouse::OnLoadInputDevices() {
-    mouse_device = Input::CreateDevice<Input::MouseDevice>(Settings::values.mouse_device);
-    std::transform(Settings::values.mouse_buttons.begin(), Settings::values.mouse_buttons.end(),
-                   mouse_button_devices.begin(), Input::CreateDevice<Input::ButtonDevice>);
-}
 } // namespace Service::HID

src/core/hle/service/hid/controllers/mouse.h

@@ -9,8 +9,13 @@
 #include "common/common_types.h"
 #include "common/settings.h"
 #include "common/swap.h"
-#include "core/frontend/input.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
+
+namespace Core::HID {
+class EmulatedDevices;
+struct MouseState;
+} // namespace Core::HID
 
 namespace Service::HID {
 class Controller_Mouse final : public ControllerBase {
@@ -27,53 +32,12 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
 private:
-    struct Buttons {
-        union {
-            u32_le raw{};
-            BitField<0, 1, u32> left;
-            BitField<1, 1, u32> right;
-            BitField<2, 1, u32> middle;
-            BitField<3, 1, u32> forward;
-            BitField<4, 1, u32> back;
-        };
-    };
-    static_assert(sizeof(Buttons) == 0x4, "Buttons is an invalid size");
+    // This is nn::hid::detail::MouseLifo
+    Lifo<Core::HID::MouseState> mouse_lifo{};
+    static_assert(sizeof(mouse_lifo) == 0x350, "mouse_lifo is an invalid size");
+    Core::HID::MouseState next_state{};
 
-    struct Attributes {
-        union {
-            u32_le raw{};
-            BitField<0, 1, u32> transferable;
-            BitField<1, 1, u32> is_connected;
-        };
-    };
-    static_assert(sizeof(Attributes) == 0x4, "Attributes is an invalid size");
-
-    struct MouseState {
-        s64_le sampling_number;
-        s64_le sampling_number2;
-        s32_le x;
-        s32_le y;
-        s32_le delta_x;
-        s32_le delta_y;
-        s32_le mouse_wheel_x;
-        s32_le mouse_wheel_y;
-        Buttons button;
-        Attributes attribute;
-    };
-    static_assert(sizeof(MouseState) == 0x30, "MouseState is an invalid size");
-
-    struct SharedMemory {
-        CommonHeader header;
-        std::array<MouseState, 17> mouse_states;
-    };
-    SharedMemory shared_memory{};
-
-    std::unique_ptr<Input::MouseDevice> mouse_device;
-    std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeMouseButton::NumMouseButtons>
-        mouse_button_devices;
+    Core::HID::EmulatedDevices* emulated_devices;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/npad.h

@@ -12,8 +12,14 @@
 #include "common/common_types.h"
 #include "common/quaternion.h"
 #include "common/settings.h"
-#include "core/frontend/input.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
+
+namespace Core::HID {
+class EmulatedController;
+enum class ControllerTriggerType;
+} // namespace Core::HID
 
 namespace Kernel {
 class KEvent;
@@ -48,31 +54,6 @@ public:
     void OnMotionUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                         std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
-    enum class NPadControllerType {
-        None,
-        ProController,
-        Handheld,
-        JoyDual,
-        JoyLeft,
-        JoyRight,
-        GameCube,
-        Pokeball,
-    };
-
-    enum class NpadType : u8 {
-        ProController = 3,
-        Handheld = 4,
-        JoyconDual = 5,
-        JoyconLeft = 6,
-        JoyconRight = 7,
-        GameCube = 8,
-        Pokeball = 9,
-        MaxNpadType = 10,
-    };
-
     enum class DeviceIndex : u8 {
         Left = 0,
         Right = 1,
@@ -80,28 +61,33 @@ public:
         MaxDeviceIndex = 3,
     };
 
+    // This is nn::hid::GyroscopeZeroDriftMode
     enum class GyroscopeZeroDriftMode : u32 {
         Loose = 0,
         Standard = 1,
         Tight = 2,
     };
 
-    enum class NpadHoldType : u64 {
+    // This is nn::hid::NpadJoyHoldType
+    enum class NpadJoyHoldType : u64 {
         Vertical = 0,
         Horizontal = 1,
     };
 
-    enum class NpadAssignments : u32 {
+    // This is nn::hid::NpadJoyAssignmentMode
+    enum class NpadJoyAssignmentMode : u32 {
         Dual = 0,
         Single = 1,
     };
 
+    // This is nn::hid::NpadHandheldActivationMode
     enum class NpadHandheldActivationMode : u64 {
         Dual = 0,
         Single = 1,
         None = 2,
     };
 
+    // This is nn::hid::NpadCommunicationMode
     enum class NpadCommunicationMode : u64 {
         Mode_5ms = 0,
         Mode_10ms = 1,
@@ -110,33 +96,14 @@ public:
     };
 
     struct DeviceHandle {
-        NpadType npad_type;
+        Core::HID::NpadType npad_type;
         u8 npad_id;
         DeviceIndex device_index;
         INSERT_PADDING_BYTES_NOINIT(1);
     };
     static_assert(sizeof(DeviceHandle) == 4, "DeviceHandle is an invalid size");
 
-    struct NpadStyleSet {
-        union {
-            u32_le raw{};
-
-            BitField<0, 1, u32> fullkey;
-            BitField<1, 1, u32> handheld;
-            BitField<2, 1, u32> joycon_dual;
-            BitField<3, 1, u32> joycon_left;
-            BitField<4, 1, u32> joycon_right;
-            BitField<5, 1, u32> gamecube;
-            BitField<6, 1, u32> palma;
-            BitField<7, 1, u32> lark;
-            BitField<8, 1, u32> handheld_lark;
-            BitField<9, 1, u32> lucia;
-            BitField<29, 1, u32> system_ext;
-            BitField<30, 1, u32> system;
-        };
-    };
-    static_assert(sizeof(NpadStyleSet) == 4, "NpadStyleSet is an invalid size");
-
+    // This is nn::hid::VibrationValue
     struct VibrationValue {
         f32 amp_low;
         f32 freq_low;
@@ -152,31 +119,15 @@ public:
         .freq_high = 320.0f,
     };
 
-    struct LedPattern {
-        explicit LedPattern(u64 light1, u64 light2, u64 light3, u64 light4) {
-            position1.Assign(light1);
-            position2.Assign(light2);
-            position3.Assign(light3);
-            position4.Assign(light4);
-        }
-        union {
-            u64 raw{};
-            BitField<0, 1, u64> position1;
-            BitField<1, 1, u64> position2;
-            BitField<2, 1, u64> position3;
-            BitField<3, 1, u64> position4;
-        };
-    };
-
-    void SetSupportedStyleSet(NpadStyleSet style_set);
-    NpadStyleSet GetSupportedStyleSet() const;
+    void SetSupportedStyleSet(Core::HID::NpadStyleTag style_set);
+    Core::HID::NpadStyleTag GetSupportedStyleSet() const;
 
     void SetSupportedNpadIdTypes(u8* data, std::size_t length);
     void GetSupportedNpadIdTypes(u32* data, std::size_t max_length);
     std::size_t GetSupportedNpadIdTypesSize() const;
 
-    void SetHoldType(NpadHoldType joy_hold_type);
-    NpadHoldType GetHoldType() const;
+    void SetHoldType(NpadJoyHoldType joy_hold_type);
+    NpadJoyHoldType GetHoldType() const;
 
     void SetNpadHandheldActivationMode(NpadHandheldActivationMode activation_mode);
     NpadHandheldActivationMode GetNpadHandheldActivationMode() const;
@@ -184,7 +135,7 @@ public:
     void SetNpadCommunicationMode(NpadCommunicationMode communication_mode_);
     NpadCommunicationMode GetNpadCommunicationMode() const;
 
-    void SetNpadMode(u32 npad_id, NpadAssignments assignment_mode);
+    void SetNpadMode(u32 npad_id, NpadJoyAssignmentMode assignment_mode);
 
     bool VibrateControllerAtIndex(std::size_t npad_index, std::size_t device_index,
                                   const VibrationValue& vibration_value);
@@ -209,9 +160,9 @@ public:
     void SignalStyleSetChangedEvent(u32 npad_id) const;
 
     // Adds a new controller at an index.
-    void AddNewControllerAt(NPadControllerType controller, std::size_t npad_index);
+    void AddNewControllerAt(Core::HID::NpadType controller, std::size_t npad_index);
     // Adds a new controller at an index with connection status.
-    void UpdateControllerAt(NPadControllerType controller, std::size_t npad_index, bool connected);
+    void UpdateControllerAt(Core::HID::NpadType controller, std::size_t npad_index, bool connected);
 
     void DisconnectNpad(u32 npad_id);
     void DisconnectNpadAtIndex(std::size_t index);
@@ -223,7 +174,7 @@ public:
     void SetSixAxisFusionParameters(f32 parameter1, f32 parameter2);
     std::pair<f32, f32> GetSixAxisFusionParameters();
     void ResetSixAxisFusionParameters();
-    LedPattern GetLedPattern(u32 npad_id);
+    Core::HID::LedPattern GetLedPattern(u32 npad_id);
     bool IsUnintendedHomeButtonInputProtectionEnabled(u32 npad_id) const;
     void SetUnintendedHomeButtonInputProtectionEnabled(bool is_protection_enabled, u32 npad_id);
     void SetAnalogStickUseCenterClamp(bool use_center_clamp);
@@ -241,105 +192,39 @@ public:
     // Specifically for cheat engine and other features.
     u32 GetAndResetPressState();
 
-    static Controller_NPad::NPadControllerType MapSettingsTypeToNPad(Settings::ControllerType type);
-    static Settings::ControllerType MapNPadToSettingsType(Controller_NPad::NPadControllerType type);
     static std::size_t NPadIdToIndex(u32 npad_id);
     static u32 IndexToNPad(std::size_t index);
     static bool IsNpadIdValid(u32 npad_id);
     static bool IsDeviceHandleValid(const DeviceHandle& device_handle);
 
 private:
-    struct CommonHeader {
-        s64_le timestamp;
-        s64_le total_entry_count;
-        s64_le last_entry_index;
-        s64_le entry_count;
-    };
-    static_assert(sizeof(CommonHeader) == 0x20, "CommonHeader is an invalid size");
-
-    enum class ColorAttributes : u32_le {
+    // This is nn::hid::detail::ColorAttribute
+    enum class ColorAttribute : u32 {
         Ok = 0,
         ReadError = 1,
         NoController = 2,
     };
-    static_assert(sizeof(ColorAttributes) == 4, "ColorAttributes is an invalid size");
+    static_assert(sizeof(ColorAttribute) == 4, "ColorAttribute is an invalid size");
 
-    struct ControllerColor {
-        u32_le body;
-        u32_le button;
+    // This is nn::hid::detail::NpadFullKeyColorState
+    struct NpadFullKeyColorState {
+        ColorAttribute attribute;
+        Core::HID::NpadControllerColor fullkey;
     };
-    static_assert(sizeof(ControllerColor) == 8, "ControllerColor is an invalid size");
+    static_assert(sizeof(NpadFullKeyColorState) == 0xC, "NpadFullKeyColorState is an invalid size");
 
-    struct FullKeyColor {
-        ColorAttributes attribute;
-        ControllerColor fullkey;
+    // This is nn::hid::detail::NpadJoyColorState
+    struct NpadJoyColorState {
+        ColorAttribute attribute;
+        Core::HID::NpadControllerColor left;
+        Core::HID::NpadControllerColor right;
     };
-    static_assert(sizeof(FullKeyColor) == 0xC, "FullKeyColor is an invalid size");
+    static_assert(sizeof(NpadJoyColorState) == 0x14, "NpadJoyColorState is an invalid size");
 
-    struct JoyconColor {
-        ColorAttributes attribute;
-        ControllerColor left;
-        ControllerColor right;
-    };
-    static_assert(sizeof(JoyconColor) == 0x14, "JoyconColor is an invalid size");
-
-    struct ControllerPadState {
+    // This is nn::hid::NpadAttribute
+    struct NpadAttribute {
         union {
-            u64_le raw{};
-            // Button states
-            BitField<0, 1, u64> a;
-            BitField<1, 1, u64> b;
-            BitField<2, 1, u64> x;
-            BitField<3, 1, u64> y;
-            BitField<4, 1, u64> l_stick;
-            BitField<5, 1, u64> r_stick;
-            BitField<6, 1, u64> l;
-            BitField<7, 1, u64> r;
-            BitField<8, 1, u64> zl;
-            BitField<9, 1, u64> zr;
-            BitField<10, 1, u64> plus;
-            BitField<11, 1, u64> minus;
-
-            // D-Pad
-            BitField<12, 1, u64> d_left;
-            BitField<13, 1, u64> d_up;
-            BitField<14, 1, u64> d_right;
-            BitField<15, 1, u64> d_down;
-
-            // Left JoyStick
-            BitField<16, 1, u64> l_stick_left;
-            BitField<17, 1, u64> l_stick_up;
-            BitField<18, 1, u64> l_stick_right;
-            BitField<19, 1, u64> l_stick_down;
-
-            // Right JoyStick
-            BitField<20, 1, u64> r_stick_left;
-            BitField<21, 1, u64> r_stick_up;
-            BitField<22, 1, u64> r_stick_right;
-            BitField<23, 1, u64> r_stick_down;
-
-            // Not always active?
-            BitField<24, 1, u64> left_sl;
-            BitField<25, 1, u64> left_sr;
-
-            BitField<26, 1, u64> right_sl;
-            BitField<27, 1, u64> right_sr;
-
-            BitField<28, 1, u64> palma;
-            BitField<30, 1, u64> handheld_left_b;
-        };
-    };
-    static_assert(sizeof(ControllerPadState) == 8, "ControllerPadState is an invalid size");
-
-    struct AnalogPosition {
-        s32_le x;
-        s32_le y;
-    };
-    static_assert(sizeof(AnalogPosition) == 8, "AnalogPosition is an invalid size");
-
-    struct ConnectionState {
-        union {
-            u32_le raw{};
+            u32 raw{};
             BitField<0, 1, u32> is_connected;
             BitField<1, 1, u32> is_wired;
             BitField<2, 1, u32> is_left_connected;
@@ -348,79 +233,60 @@ private:
             BitField<5, 1, u32> is_right_wired;
         };
     };
-    static_assert(sizeof(ConnectionState) == 4, "ConnectionState is an invalid size");
+    static_assert(sizeof(NpadAttribute) == 4, "NpadAttribute is an invalid size");
 
-    struct ControllerPad {
-        ControllerPadState pad_states;
-        AnalogPosition l_stick;
-        AnalogPosition r_stick;
+    // This is nn::hid::NpadFullKeyState
+    // This is nn::hid::NpadHandheldState
+    // This is nn::hid::NpadJoyDualState
+    // This is nn::hid::NpadJoyLeftState
+    // This is nn::hid::NpadJoyRightState
+    // This is nn::hid::NpadPalmaState
+    // This is nn::hid::NpadSystemExtState
+    struct NPadGenericState {
+        s64_le sampling_number;
+        Core::HID::NpadButtonState npad_buttons;
+        Core::HID::AnalogStickState l_stick;
+        Core::HID::AnalogStickState r_stick;
+        NpadAttribute connection_status;
+        INSERT_PADDING_BYTES(4); // Reserved
     };
-    static_assert(sizeof(ControllerPad) == 0x18, "ControllerPad is an invalid size");
+    static_assert(sizeof(NPadGenericState) == 0x28, "NPadGenericState is an invalid size");
 
-    struct GenericStates {
-        s64_le timestamp;
-        s64_le timestamp2;
-        ControllerPad pad;
-        ConnectionState connection_status;
-    };
-    static_assert(sizeof(GenericStates) == 0x30, "NPadGenericStates is an invalid size");
-
-    struct NPadGeneric {
-        CommonHeader common;
-        std::array<GenericStates, 17> npad;
-    };
-    static_assert(sizeof(NPadGeneric) == 0x350, "NPadGeneric is an invalid size");
-
-    struct SixAxisAttributes {
+    // This is nn::hid::SixAxisSensorAttribute
+    struct SixAxisSensorAttribute {
         union {
-            u32_le raw{};
+            u32 raw{};
             BitField<0, 1, u32> is_connected;
             BitField<1, 1, u32> is_interpolated;
         };
     };
-    static_assert(sizeof(SixAxisAttributes) == 4, "SixAxisAttributes is an invalid size");
+    static_assert(sizeof(SixAxisSensorAttribute) == 4, "SixAxisSensorAttribute is an invalid size");
 
-    struct SixAxisStates {
-        s64_le timestamp{};
-        INSERT_PADDING_WORDS(2);
-        s64_le timestamp2{};
+    // This is nn::hid::SixAxisSensorState
+    struct SixAxisSensorState {
+        s64 delta_time{};
+        s64 sampling_number{};
         Common::Vec3f accel{};
         Common::Vec3f gyro{};
         Common::Vec3f rotation{};
         std::array<Common::Vec3f, 3> orientation{};
-        SixAxisAttributes attribute;
+        SixAxisSensorAttribute attribute;
         INSERT_PADDING_BYTES(4); // Reserved
     };
-    static_assert(sizeof(SixAxisStates) == 0x68, "SixAxisStates is an invalid size");
+    static_assert(sizeof(SixAxisSensorState) == 0x60, "SixAxisSensorState is an invalid size");
 
-    struct SixAxisGeneric {
-        CommonHeader common{};
-        std::array<SixAxisStates, 17> sixaxis{};
+    // This is nn::hid::server::NpadGcTriggerState
+    struct NpadGcTriggerState {
+        s64 sampling_number{};
+        s32 l_analog{};
+        s32 r_analog{};
     };
-    static_assert(sizeof(SixAxisGeneric) == 0x708, "SixAxisGeneric is an invalid size");
-
-    struct TriggerState {
-        s64_le timestamp{};
-        s64_le timestamp2{};
-        s32_le l_analog{};
-        s32_le r_analog{};
-    };
-    static_assert(sizeof(TriggerState) == 0x18, "TriggerState is an invalid size");
-
-    struct TriggerGeneric {
-        INSERT_PADDING_BYTES(0x4);
-        s64_le timestamp;
-        INSERT_PADDING_BYTES(0x4);
-        s64_le total_entry_count;
-        s64_le last_entry_index;
-        s64_le entry_count;
-        std::array<TriggerState, 17> trigger{};
-    };
-    static_assert(sizeof(TriggerGeneric) == 0x1C8, "TriggerGeneric is an invalid size");
+    static_assert(sizeof(NpadGcTriggerState) == 0x10, "NpadGcTriggerState is an invalid size");
 
+    // This is nn::hid::NpadSystemProperties
     struct NPadSystemProperties {
         union {
-            s64_le raw{};
+            s64 raw{};
             BitField<0, 1, s64> is_charging_joy_dual;
             BitField<1, 1, s64> is_charging_joy_left;
             BitField<2, 1, s64> is_charging_joy_right;
@@ -438,17 +304,20 @@ private:
     };
     static_assert(sizeof(NPadSystemProperties) == 0x8, "NPadSystemProperties is an invalid size");
 
-    struct NPadButtonProperties {
+    // This is nn::hid::NpadSystemButtonProperties
+    struct NpadSystemButtonProperties {
         union {
-            s32_le raw{};
+            s32 raw{};
             BitField<0, 1, s32> is_home_button_protection_enabled;
         };
     };
-    static_assert(sizeof(NPadButtonProperties) == 0x4, "NPadButtonProperties is an invalid size");
+    static_assert(sizeof(NpadSystemButtonProperties) == 0x4,
+                  "NPadButtonProperties is an invalid size");
 
-    struct NPadDevice {
+    // This is nn::hid::system::DeviceType
+    struct DeviceType {
         union {
-            u32_le raw{};
+            u32 raw{};
             BitField<0, 1, s32> fullkey;
             BitField<1, 1, s32> debug_pad;
             BitField<2, 1, s32> handheld_left;
@@ -465,26 +334,49 @@ private:
             BitField<13, 1, s32> handheld_lark_nes_left;
             BitField<14, 1, s32> handheld_lark_nes_right;
             BitField<15, 1, s32> lucia;
+            BitField<16, 1, s32> lagon;
+            BitField<17, 1, s32> lager;
             BitField<31, 1, s32> system;
         };
     };
 
-    struct MotionDevice {
-        Common::Vec3f accel;
-        Common::Vec3f gyro;
-        Common::Vec3f rotation;
-        std::array<Common::Vec3f, 3> orientation;
-        Common::Quaternion<f32> quaternion;
+    // This is nn::hid::detail::NfcXcdDeviceHandleStateImpl
+    struct NfcXcdDeviceHandleStateImpl {
+        u64 handle;
+        bool is_available;
+        bool is_activated;
+        INSERT_PADDING_BYTES(0x6); // Reserved
+        u64 sampling_number;
     };
+    static_assert(sizeof(NfcXcdDeviceHandleStateImpl) == 0x18,
+                  "NfcXcdDeviceHandleStateImpl is an invalid size");
 
-    struct NfcXcdHandle {
-        INSERT_PADDING_BYTES(0x60);
+    // nn::hid::detail::NfcXcdDeviceHandleStateImplAtomicStorage
+    struct NfcXcdDeviceHandleStateImplAtomicStorage {
+        u64 sampling_number;
+        NfcXcdDeviceHandleStateImpl nfc_xcd_device_handle_state;
     };
+    static_assert(sizeof(NfcXcdDeviceHandleStateImplAtomicStorage) == 0x20,
+                  "NfcXcdDeviceHandleStateImplAtomicStorage is an invalid size");
 
+    // This is nn::hid::detail::NfcXcdDeviceHandleState
+    struct NfcXcdDeviceHandleState {
+        // TODO(german77): Make this struct a ring lifo object
+        INSERT_PADDING_BYTES(0x8); // Unused
+        s64 total_buffer_count = max_buffer_size;
+        s64 buffer_tail{};
+        s64 buffer_count{};
+        std::array<NfcXcdDeviceHandleStateImplAtomicStorage, 2> nfc_xcd_device_handle_storage;
+    };
+    static_assert(sizeof(NfcXcdDeviceHandleState) == 0x60,
+                  "NfcXcdDeviceHandleState is an invalid size");
+
+    // This is nn::hid::system::AppletFooterUiAttributesSet
     struct AppletFooterUiAttributes {
         INSERT_PADDING_BYTES(0x4);
     };
 
+    // This is nn::hid::system::AppletFooterUiType
     enum class AppletFooterUiType : u8 {
         None = 0,
         HandheldNone = 1,
@@ -510,95 +402,137 @@ private:
         Lagon = 21,
     };
 
-    struct NPadEntry {
-        NpadStyleSet style_set;
-        NpadAssignments assignment_mode;
-        FullKeyColor fullkey_color;
-        JoyconColor joycon_color;
+    struct AppletFooterUi {
+        AppletFooterUiAttributes attributes;
+        AppletFooterUiType type;
+        INSERT_PADDING_BYTES(0x5B); // Reserved
+    };
+    static_assert(sizeof(AppletFooterUi) == 0x60, "AppletFooterUi is an invalid size");
 
-        NPadGeneric fullkey_states;
-        NPadGeneric handheld_states;
-        NPadGeneric joy_dual_states;
-        NPadGeneric joy_left_states;
-        NPadGeneric joy_right_states;
-        NPadGeneric palma_states;
-        NPadGeneric system_ext_states;
-        SixAxisGeneric sixaxis_fullkey;
-        SixAxisGeneric sixaxis_handheld;
-        SixAxisGeneric sixaxis_dual_left;
-        SixAxisGeneric sixaxis_dual_right;
-        SixAxisGeneric sixaxis_left;
-        SixAxisGeneric sixaxis_right;
-        NPadDevice device_type;
-        INSERT_PADDING_BYTES(0x4); // reserved
+    // This is nn::hid::NpadLarkType
+    enum class NpadLarkType : u32 {
+        Invalid,
+        H1,
+        H2,
+        NL,
+        NR,
+    };
+
+    // This is nn::hid::NpadLuciaType
+    enum class NpadLuciaType : u32 {
+        Invalid,
+        J,
+        E,
+        U,
+    };
+
+    // This is nn::hid::NpadLagonType
+    enum class NpadLagonType : u32 {
+        Invalid,
+    };
+
+    // This is nn::hid::NpadLagerType
+    enum class NpadLagerType : u32 {
+        Invalid,
+        J,
+        E,
+        U,
+    };
+
+    // This is nn::hid::detail::NpadInternalState
+    struct NpadInternalState {
+        Core::HID::NpadStyleTag style_set;
+        NpadJoyAssignmentMode assignment_mode;
+        NpadFullKeyColorState fullkey_color;
+        NpadJoyColorState joycon_color;
+        Lifo<NPadGenericState> fullkey_lifo;
+        Lifo<NPadGenericState> handheld_lifo;
+        Lifo<NPadGenericState> joy_dual_lifo;
+        Lifo<NPadGenericState> joy_left_lifo;
+        Lifo<NPadGenericState> joy_right_lifo;
+        Lifo<NPadGenericState> palma_lifo;
+        Lifo<NPadGenericState> system_ext_lifo;
+        Lifo<SixAxisSensorState> sixaxis_fullkey_lifo;
+        Lifo<SixAxisSensorState> sixaxis_handheld_lifo;
+        Lifo<SixAxisSensorState> sixaxis_dual_left_lifo;
+        Lifo<SixAxisSensorState> sixaxis_dual_right_lifo;
+        Lifo<SixAxisSensorState> sixaxis_left_lifo;
+        Lifo<SixAxisSensorState> sixaxis_right_lifo;
+        DeviceType device_type;
+        INSERT_PADDING_BYTES(0x4); // Reserved
         NPadSystemProperties system_properties;
-        NPadButtonProperties button_properties;
-        u32 battery_level_dual;
-        u32 battery_level_left;
-        u32 battery_level_right;
-        AppletFooterUiAttributes footer_attributes;
-        AppletFooterUiType footer_type;
-        // nfc_states needs to be checked switchbrew does not match with HW
-        NfcXcdHandle nfc_states;
-        INSERT_PADDING_BYTES(0x8); // Mutex
-        TriggerGeneric gc_trigger_states;
-        INSERT_PADDING_BYTES(0xc1f);
+        NpadSystemButtonProperties button_properties;
+        Core::HID::BatteryLevel battery_level_dual;
+        Core::HID::BatteryLevel battery_level_left;
+        Core::HID::BatteryLevel battery_level_right;
+        union {
+            NfcXcdDeviceHandleState nfc_xcd_device_handle;
+            AppletFooterUi applet_footer;
         };
-    static_assert(sizeof(NPadEntry) == 0x5000, "NPadEntry is an invalid size");
+        INSERT_PADDING_BYTES(0x20); // Unknown
+        Lifo<NpadGcTriggerState> gc_trigger_lifo;
+        NpadLarkType lark_type_l_and_main;
+        NpadLarkType lark_type_r;
+        NpadLuciaType lucia_type;
+        NpadLagonType lagon_type;
+        NpadLagerType lager_type;
+        INSERT_PADDING_BYTES(
+            0x4); // FW 13.x Investigate there is some sort of bitflag related to joycons
+        INSERT_PADDING_BYTES(0xc08); // Unknown
+    };
+    static_assert(sizeof(NpadInternalState) == 0x5000, "NpadInternalState is an invalid size");
 
-    struct ControllerHolder {
-        NPadControllerType type;
-        bool is_connected;
+    struct VibrationData {
+        bool device_mounted{};
+        VibrationValue latest_vibration_value{};
+        std::chrono::steady_clock::time_point last_vibration_timepoint{};
     };
 
+    struct ControllerData {
+        Core::HID::EmulatedController* device;
+        Kernel::KEvent* styleset_changed_event{};
+        NpadInternalState shared_memory_entry{};
+
+        std::array<VibrationData, 2> vibration{};
+        bool unintended_home_button_input_protection{};
+        bool is_connected{};
+        Core::HID::NpadType npad_type{Core::HID::NpadType::None};
+
+        // Current pad state
+        NPadGenericState npad_pad_state{};
+        NPadGenericState npad_libnx_state{};
+        NpadGcTriggerState npad_trigger_state{};
+        SixAxisSensorState sixaxis_fullkey_state{};
+        SixAxisSensorState sixaxis_handheld_state{};
+        SixAxisSensorState sixaxis_dual_left_state{};
+        SixAxisSensorState sixaxis_dual_right_state{};
+        SixAxisSensorState sixaxis_left_lifo_state{};
+        SixAxisSensorState sixaxis_right_lifo_state{};
+        int callback_key;
+    };
+
+    void ControllerUpdate(Core::HID::ControllerTriggerType type, std::size_t controller_idx);
     void InitNewlyAddedController(std::size_t controller_idx);
-    bool IsControllerSupported(NPadControllerType controller) const;
+    bool IsControllerSupported(Core::HID::NpadType controller) const;
     void RequestPadStateUpdate(u32 npad_id);
+    void WriteEmptyEntry(NpadInternalState& npad);
 
     std::atomic<u32> press_state{};
 
-    NpadStyleSet style{};
-    std::array<NPadEntry, 10> shared_memory_entries{};
-    using ButtonArray = std::array<
-        std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeButton::NUM_BUTTONS_HID>,
-        10>;
-    using StickArray = std::array<
-        std::array<std::unique_ptr<Input::AnalogDevice>, Settings::NativeAnalog::NUM_STICKS_HID>,
-        10>;
-    using VibrationArray = std::array<std::array<std::unique_ptr<Input::VibrationDevice>,
-                                                 Settings::NativeVibration::NUM_VIBRATIONS_HID>,
-                                      10>;
-    using MotionArray = std::array<
-        std::array<std::unique_ptr<Input::MotionDevice>, Settings::NativeMotion::NUM_MOTIONS_HID>,
-        10>;
-
+    std::array<ControllerData, 10> controller_data{};
     KernelHelpers::ServiceContext& service_context;
     std::mutex mutex;
-    ButtonArray buttons;
-    StickArray sticks;
-    VibrationArray vibrations;
-    MotionArray motions;
     std::vector<u32> supported_npad_id_types{};
-    NpadHoldType hold_type{NpadHoldType::Vertical};
+    NpadJoyHoldType hold_type{NpadJoyHoldType::Vertical};
     NpadHandheldActivationMode handheld_activation_mode{NpadHandheldActivationMode::Dual};
     NpadCommunicationMode communication_mode{NpadCommunicationMode::Default};
-    // Each controller should have their own styleset changed event
-    std::array<Kernel::KEvent*, 10> styleset_changed_events{};
-    std::array<std::array<std::chrono::steady_clock::time_point, 2>, 10>
-        last_vibration_timepoints{};
-    std::array<std::array<VibrationValue, 2>, 10> latest_vibration_values{};
     bool permit_vibration_session_enabled{false};
-    std::array<std::array<bool, 2>, 10> vibration_devices_mounted{};
-    std::array<ControllerHolder, 10> connected_controllers{};
-    std::array<bool, 10> unintended_home_button_input_protection{};
     bool analog_stick_use_center_clamp{};
     GyroscopeZeroDriftMode gyroscope_zero_drift_mode{GyroscopeZeroDriftMode::Standard};
     bool sixaxis_sensors_enabled{true};
     f32 sixaxis_fusion_parameter1{};
     f32 sixaxis_fusion_parameter2{};
     bool sixaxis_at_rest{true};
-    std::array<ControllerPad, 10> npad_pad_states{};
-    std::array<TriggerState, 10> npad_trigger_states{};
     bool is_in_lr_assignment_mode{false};
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/stubbed.cpp

@@ -31,10 +31,9 @@ void Controller_Stubbed::OnUpdate(const Core::Timing::CoreTiming& core_timing, u
     std::memcpy(data + common_offset, &header, sizeof(CommonHeader));
 }
 
-void Controller_Stubbed::OnLoadInputDevices() {}
-
 void Controller_Stubbed::SetCommonHeaderOffset(std::size_t off) {
     common_offset = off;
     smart_update = true;
 }
+
 } // namespace Service::HID

src/core/hle/service/hid/controllers/stubbed.h

@@ -22,12 +22,17 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
     void SetCommonHeaderOffset(std::size_t off);
 
 private:
+    struct CommonHeader {
+        s64 timestamp;
+        s64 total_entry_count;
+        s64 last_entry_index;
+        s64 entry_count;
+    };
+    static_assert(sizeof(CommonHeader) == 0x20, "CommonHeader is an invalid size");
+
     bool smart_update{};
     std::size_t common_offset{};
 };

src/core/hle/service/hid/controllers/touchscreen.cpp

@@ -7,72 +7,79 @@
 #include "common/common_types.h"
 #include "common/logging/log.h"
 #include "common/settings.h"
+#include "core/core.h"
 #include "core/core_timing.h"
 #include "core/frontend/emu_window.h"
-#include "core/frontend/input.h"
 #include "core/hle/service/hid/controllers/touchscreen.h"
 
 namespace Service::HID {
 constexpr std::size_t SHARED_MEMORY_OFFSET = 0x400;
 
-Controller_Touchscreen::Controller_Touchscreen(Core::System& system_) : ControllerBase{system_} {}
+Controller_Touchscreen::Controller_Touchscreen(Core::System& system_) : ControllerBase{system_} {
+    console = system.HIDCore().GetEmulatedConsole();
+}
+
 Controller_Touchscreen::~Controller_Touchscreen() = default;
 
-void Controller_Touchscreen::OnInit() {
-    for (std::size_t id = 0; id < MAX_FINGERS; ++id) {
-        mouse_finger_id[id] = MAX_FINGERS;
-        keyboard_finger_id[id] = MAX_FINGERS;
-        udp_finger_id[id] = MAX_FINGERS;
-    }
-}
+void Controller_Touchscreen::OnInit() {}
 
 void Controller_Touchscreen::OnRelease() {}
 
 void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                       std::size_t size) {
-    shared_memory.header.timestamp = core_timing.GetCPUTicks();
-    shared_memory.header.total_entry_count = 17;
+    touch_screen_lifo.timestamp = core_timing.GetCPUTicks();
 
     if (!IsControllerActivated()) {
-        shared_memory.header.entry_count = 0;
-        shared_memory.header.last_entry_index = 0;
+        touch_screen_lifo.buffer_count = 0;
+        touch_screen_lifo.buffer_tail = 0;
+        std::memcpy(data, &touch_screen_lifo, sizeof(touch_screen_lifo));
         return;
     }
-    shared_memory.header.entry_count = 16;
 
-    const auto& last_entry =
-        shared_memory.shared_memory_entries[shared_memory.header.last_entry_index];
-    shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry = shared_memory.shared_memory_entries[shared_memory.header.last_entry_index];
+    const auto touch_status = console->GetTouch();
+    for (std::size_t id = 0; id < MAX_FINGERS; id++) {
+        const auto& current_touch = touch_status[id];
+        auto& finger = fingers[id];
+        finger.position = current_touch.position;
+        finger.id = current_touch.id;
 
-    cur_entry.sampling_number = last_entry.sampling_number + 1;
-    cur_entry.sampling_number2 = cur_entry.sampling_number;
-
-    const Input::TouchStatus& mouse_status = touch_mouse_device->GetStatus();
-    const Input::TouchStatus& udp_status = touch_udp_device->GetStatus();
-    for (std::size_t id = 0; id < mouse_status.size(); ++id) {
-        mouse_finger_id[id] = UpdateTouchInputEvent(mouse_status[id], mouse_finger_id[id]);
-        udp_finger_id[id] = UpdateTouchInputEvent(udp_status[id], udp_finger_id[id]);
+        if (finger.attribute.start_touch) {
+            finger.attribute.raw = 0;
+            continue;
         }
 
-    if (Settings::values.use_touch_from_button) {
-        const Input::TouchStatus& keyboard_status = touch_btn_device->GetStatus();
-        for (std::size_t id = 0; id < mouse_status.size(); ++id) {
-            keyboard_finger_id[id] =
-                UpdateTouchInputEvent(keyboard_status[id], keyboard_finger_id[id]);
+        if (finger.attribute.end_touch) {
+            finger.attribute.raw = 0;
+            finger.pressed = false;
+            continue;
+        }
+
+        if (!finger.pressed && current_touch.pressed) {
+            finger.attribute.start_touch.Assign(1);
+            finger.pressed = true;
+            continue;
+        }
+
+        if (finger.pressed && !current_touch.pressed) {
+            finger.attribute.raw = 0;
+            finger.attribute.end_touch.Assign(1);
         }
     }
 
-    std::array<Finger, 16> active_fingers;
+    std::array<Core::HID::TouchFinger, MAX_FINGERS> active_fingers;
     const auto end_iter = std::copy_if(fingers.begin(), fingers.end(), active_fingers.begin(),
                                        [](const auto& finger) { return finger.pressed; });
     const auto active_fingers_count =
         static_cast<std::size_t>(std::distance(active_fingers.begin(), end_iter));
 
     const u64 tick = core_timing.GetCPUTicks();
-    cur_entry.entry_count = static_cast<s32_le>(active_fingers_count);
+    const auto& last_entry = touch_screen_lifo.ReadCurrentEntry().state;
+
+    next_state.sampling_number = last_entry.sampling_number + 1;
+    next_state.entry_count = static_cast<s32>(active_fingers_count);
+
     for (std::size_t id = 0; id < MAX_FINGERS; ++id) {
-        auto& touch_entry = cur_entry.states[id];
+        auto& touch_entry = next_state.states[id];
         if (id < active_fingers_count) {
             const auto& [active_x, active_y] = active_fingers[id].position;
             touch_entry.position = {
@@ -97,66 +104,9 @@ void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timin
             touch_entry.finger = 0;
         }
     }
-    std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(TouchScreenSharedMemory));
-}
 
-void Controller_Touchscreen::OnLoadInputDevices() {
-    touch_mouse_device = Input::CreateDevice<Input::TouchDevice>("engine:emu_window");
-    touch_udp_device = Input::CreateDevice<Input::TouchDevice>("engine:cemuhookudp");
-    touch_btn_device = Input::CreateDevice<Input::TouchDevice>("engine:touch_from_button");
-}
-
-std::optional<std::size_t> Controller_Touchscreen::GetUnusedFingerID() const {
-    // Dont assign any touch input to a finger if disabled
-    if (!Settings::values.touchscreen.enabled) {
-        return std::nullopt;
-    }
-    std::size_t first_free_id = 0;
-    while (first_free_id < MAX_FINGERS) {
-        if (!fingers[first_free_id].pressed) {
-            return first_free_id;
-        } else {
-            first_free_id++;
-        }
-    }
-    return std::nullopt;
-}
-
-std::size_t Controller_Touchscreen::UpdateTouchInputEvent(
-    const std::tuple<float, float, bool>& touch_input, std::size_t finger_id) {
-    const auto& [x, y, pressed] = touch_input;
-    if (finger_id > MAX_FINGERS) {
-        LOG_ERROR(Service_HID, "Invalid finger id {}", finger_id);
-        return MAX_FINGERS;
-    }
-    if (pressed) {
-        Attributes attribute{};
-        if (finger_id == MAX_FINGERS) {
-            const auto first_free_id = GetUnusedFingerID();
-            if (!first_free_id) {
-                // Invalid finger id do nothing
-                return MAX_FINGERS;
-            }
-            finger_id = first_free_id.value();
-            fingers[finger_id].pressed = true;
-            fingers[finger_id].id = static_cast<u32_le>(finger_id);
-            attribute.start_touch.Assign(1);
-        }
-        fingers[finger_id].position = {x, y};
-        fingers[finger_id].attribute = attribute;
-        return finger_id;
-    }
-
-    if (finger_id != MAX_FINGERS) {
-        if (!fingers[finger_id].attribute.end_touch) {
-            fingers[finger_id].attribute.end_touch.Assign(1);
-            fingers[finger_id].attribute.start_touch.Assign(0);
-            return finger_id;
-        }
-        fingers[finger_id].pressed = false;
-    }
-
-    return MAX_FINGERS;
+    touch_screen_lifo.WriteNextEntry(next_state);
+    std::memcpy(data + SHARED_MEMORY_OFFSET, &touch_screen_lifo, sizeof(touch_screen_lifo));
 }
 
 } // namespace Service::HID

src/core/hle/service/hid/controllers/touchscreen.h

@@ -9,18 +9,23 @@
 #include "common/common_types.h"
 #include "common/point.h"
 #include "common/swap.h"
-#include "core/frontend/input.h"
+#include "core/hid/emulated_console.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
 
 namespace Service::HID {
 class Controller_Touchscreen final : public ControllerBase {
 public:
+    // This is nn::hid::TouchScreenModeForNx
     enum class TouchScreenModeForNx : u8 {
         UseSystemSetting,
         Finger,
         Heat2,
     };
 
+    // This is nn::hid::TouchScreenConfigurationForNx
     struct TouchScreenConfigurationForNx {
         TouchScreenModeForNx mode;
         INSERT_PADDING_BYTES_NOINIT(0x7);
@@ -41,73 +46,24 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
 private:
     static constexpr std::size_t MAX_FINGERS = 16;
 
-    // Returns an unused finger id, if there is no fingers available std::nullopt will be returned
-    std::optional<std::size_t> GetUnusedFingerID() const;
-
-    // If the touch is new it tries to assing a new finger id, if there is no fingers avaliable no
-    // changes will be made. Updates the coordinates if the finger id it's already set. If the touch
-    // ends delays the output by one frame to set the end_touch flag before finally freeing the
-    // finger id
-    std::size_t UpdateTouchInputEvent(const std::tuple<float, float, bool>& touch_input,
-                                      std::size_t finger_id);
-
-    struct Attributes {
-        union {
-            u32 raw{};
-            BitField<0, 1, u32> start_touch;
-            BitField<1, 1, u32> end_touch;
+    // This is nn::hid::TouchScreenState
+    struct TouchScreenState {
+        s64 sampling_number;
+        s32 entry_count;
+        INSERT_PADDING_BYTES(4); // Reserved
+        std::array<Core::HID::TouchState, MAX_FINGERS> states;
     };
-    };
-    static_assert(sizeof(Attributes) == 0x4, "Attributes is an invalid size");
+    static_assert(sizeof(TouchScreenState) == 0x290, "TouchScreenState is an invalid size");
 
-    struct TouchState {
-        u64_le delta_time;
-        Attributes attribute;
-        u32_le finger;
-        Common::Point<u32_le> position;
-        u32_le diameter_x;
-        u32_le diameter_y;
-        u32_le rotation_angle;
-    };
-    static_assert(sizeof(TouchState) == 0x28, "Touchstate is an invalid size");
+    // This is nn::hid::detail::TouchScreenLifo
+    Lifo<TouchScreenState> touch_screen_lifo{};
+    static_assert(sizeof(touch_screen_lifo) == 0x2C38, "touch_screen_lifo is an invalid size");
+    TouchScreenState next_state{};
 
-    struct TouchScreenEntry {
-        s64_le sampling_number;
-        s64_le sampling_number2;
-        s32_le entry_count;
-        std::array<TouchState, MAX_FINGERS> states;
-    };
-    static_assert(sizeof(TouchScreenEntry) == 0x298, "TouchScreenEntry is an invalid size");
-
-    struct TouchScreenSharedMemory {
-        CommonHeader header;
-        std::array<TouchScreenEntry, 17> shared_memory_entries{};
-        INSERT_PADDING_BYTES(0x3c8);
-    };
-    static_assert(sizeof(TouchScreenSharedMemory) == 0x3000,
-                  "TouchScreenSharedMemory is an invalid size");
-
-    struct Finger {
-        u64_le last_touch{};
-        Common::Point<float> position;
-        u32_le id{};
-        bool pressed{};
-        Attributes attribute;
-    };
-
-    TouchScreenSharedMemory shared_memory{};
-    std::unique_ptr<Input::TouchDevice> touch_mouse_device;
-    std::unique_ptr<Input::TouchDevice> touch_udp_device;
-    std::unique_ptr<Input::TouchDevice> touch_btn_device;
-    std::array<std::size_t, MAX_FINGERS> mouse_finger_id;
-    std::array<std::size_t, MAX_FINGERS> keyboard_finger_id;
-    std::array<std::size_t, MAX_FINGERS> udp_finger_id;
-    std::array<Finger, MAX_FINGERS> fingers;
+    std::array<Core::HID::TouchFinger, MAX_FINGERS> fingers;
+    Core::HID::EmulatedConsole* console;
 };
 } // namespace Service::HID

src/core/hle/service/hid/controllers/xpad.cpp

@@ -19,28 +19,19 @@ void Controller_XPad::OnRelease() {}
 
 void Controller_XPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                std::size_t size) {
-    for (auto& xpad_entry : shared_memory.shared_memory_entries) {
-        xpad_entry.header.timestamp = core_timing.GetCPUTicks();
-        xpad_entry.header.total_entry_count = 17;
-
     if (!IsControllerActivated()) {
-            xpad_entry.header.entry_count = 0;
-            xpad_entry.header.last_entry_index = 0;
+        basic_xpad_lifo.buffer_count = 0;
+        basic_xpad_lifo.buffer_tail = 0;
+        std::memcpy(data + SHARED_MEMORY_OFFSET, &basic_xpad_lifo, sizeof(basic_xpad_lifo));
         return;
     }
-        xpad_entry.header.entry_count = 16;
 
-        const auto& last_entry = xpad_entry.pad_states[xpad_entry.header.last_entry_index];
-        xpad_entry.header.last_entry_index = (xpad_entry.header.last_entry_index + 1) % 17;
-        auto& cur_entry = xpad_entry.pad_states[xpad_entry.header.last_entry_index];
-
-        cur_entry.sampling_number = last_entry.sampling_number + 1;
-        cur_entry.sampling_number2 = cur_entry.sampling_number;
-    }
+    const auto& last_entry = basic_xpad_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
     // TODO(ogniK): Update xpad states
 
-    std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(SharedMemory));
+    basic_xpad_lifo.WriteNextEntry(next_state);
+    std::memcpy(data + SHARED_MEMORY_OFFSET, &basic_xpad_lifo, sizeof(basic_xpad_lifo));
 }
 
-void Controller_XPad::OnLoadInputDevices() {}
 } // namespace Service::HID

src/core/hle/service/hid/controllers/xpad.h

@@ -8,7 +8,9 @@
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/swap.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
 
 namespace Service::HID {
 class Controller_XPad final : public ControllerBase {
@@ -25,13 +27,11 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
 private:
-    struct Attributes {
+    // This is nn::hid::BasicXpadAttributeSet
+    struct BasicXpadAttributeSet {
         union {
-            u32_le raw{};
+            u32 raw{};
             BitField<0, 1, u32> is_connected;
             BitField<1, 1, u32> is_wired;
             BitField<2, 1, u32> is_left_connected;
@@ -40,11 +40,12 @@ private:
             BitField<5, 1, u32> is_right_wired;
         };
     };
-    static_assert(sizeof(Attributes) == 4, "Attributes is an invalid size");
+    static_assert(sizeof(BasicXpadAttributeSet) == 4, "BasicXpadAttributeSet is an invalid size");
 
-    struct Buttons {
+    // This is nn::hid::BasicXpadButtonSet
+    struct BasicXpadButtonSet {
         union {
-            u32_le raw{};
+            u32 raw{};
             // Button states
             BitField<0, 1, u32> a;
             BitField<1, 1, u32> b;
@@ -88,35 +89,21 @@ private:
             BitField<30, 1, u32> handheld_left_b;
         };
     };
-    static_assert(sizeof(Buttons) == 4, "Buttons is an invalid size");
+    static_assert(sizeof(BasicXpadButtonSet) == 4, "BasicXpadButtonSet is an invalid size");
 
-    struct AnalogStick {
-        s32_le x;
-        s32_le y;
+    // This is nn::hid::detail::BasicXpadState
+    struct BasicXpadState {
+        s64 sampling_number;
+        BasicXpadAttributeSet attributes;
+        BasicXpadButtonSet pad_states;
+        Core::HID::AnalogStickState l_stick;
+        Core::HID::AnalogStickState r_stick;
     };
-    static_assert(sizeof(AnalogStick) == 0x8, "AnalogStick is an invalid size");
+    static_assert(sizeof(BasicXpadState) == 0x20, "BasicXpadState is an invalid size");
 
-    struct XPadState {
-        s64_le sampling_number;
-        s64_le sampling_number2;
-        Attributes attributes;
-        Buttons pad_states;
-        AnalogStick l_stick;
-        AnalogStick r_stick;
-    };
-    static_assert(sizeof(XPadState) == 0x28, "XPadState is an invalid size");
-
-    struct XPadEntry {
-        CommonHeader header;
-        std::array<XPadState, 17> pad_states{};
-        INSERT_PADDING_BYTES(0x138);
-    };
-    static_assert(sizeof(XPadEntry) == 0x400, "XPadEntry is an invalid size");
-
-    struct SharedMemory {
-        std::array<XPadEntry, 4> shared_memory_entries{};
-    };
-    static_assert(sizeof(SharedMemory) == 0x1000, "SharedMemory is an invalid size");
-    SharedMemory shared_memory{};
+    // This is nn::hid::detail::BasicXpadLifo
+    Lifo<BasicXpadState> basic_xpad_lifo{};
+    static_assert(sizeof(basic_xpad_lifo) == 0x2C8, "basic_xpad_lifo is an invalid size");
+    BasicXpadState next_state{};
 };
 } // namespace Service::HID

src/core/hle/service/hid/hid.cpp

@@ -9,7 +9,6 @@
 #include "core/core.h"
 #include "core/core_timing.h"
 #include "core/frontend/emu_window.h"
-#include "core/frontend/input.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/k_readable_event.h"
 #include "core/hle/kernel/k_shared_memory.h"
@@ -36,10 +35,9 @@
 namespace Service::HID {
 
 // Updating period for each HID device.
-// HID is polled every 15ms, this value was derived from
-// https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering#joy-con-status-data-packet
-constexpr auto pad_update_ns = std::chrono::nanoseconds{1000 * 1000};         // (1ms, 1000Hz)
-constexpr auto motion_update_ns = std::chrono::nanoseconds{15 * 1000 * 1000}; // (15ms, 66.666Hz)
+// Period time is obtained by measuring the number of samples in a second on HW using a homebrew
+constexpr auto pad_update_ns = std::chrono::nanoseconds{4 * 1000 * 1000};    // (4ms, 250Hz)
+constexpr auto motion_update_ns = std::chrono::nanoseconds{5 * 1000 * 1000}; // (5ms, 200Hz)
 constexpr std::size_t SHARED_MEMORY_SIZE = 0x40000;
 
 IAppletResource::IAppletResource(Core::System& system_,
@@ -91,7 +89,7 @@ IAppletResource::IAppletResource(Core::System& system_,
     system.CoreTiming().ScheduleEvent(pad_update_ns, pad_update_event);
     system.CoreTiming().ScheduleEvent(motion_update_ns, motion_update_event);
 
-    ReloadInputDevices();
+    system.HIDCore().ReloadInputDevices();
 }
 
 void IAppletResource::ActivateController(HidController controller) {
@@ -119,11 +117,7 @@ void IAppletResource::UpdateControllers(std::uintptr_t user_data,
                                         std::chrono::nanoseconds ns_late) {
     auto& core_timing = system.CoreTiming();
 
-    const bool should_reload = Settings::values.is_device_reload_pending.exchange(false);
     for (const auto& controller : controllers) {
-        if (should_reload) {
-            controller->OnLoadInputDevices();
-        }
         controller->OnUpdate(core_timing, system.Kernel().GetHidSharedMem().GetPointer(),
                              SHARED_MEMORY_SIZE);
     }
@@ -893,7 +887,7 @@ void Hid::ActivateNpadWithRevision(Kernel::HLERequestContext& ctx) {
 void Hid::SetNpadJoyHoldType(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto applet_resource_user_id{rp.Pop<u64>()};
-    const auto hold_type{rp.PopEnum<Controller_NPad::NpadHoldType>()};
+    const auto hold_type{rp.PopEnum<Controller_NPad::NpadJoyHoldType>()};
 
     applet_resource->GetController<Controller_NPad>(HidController::NPad).SetHoldType(hold_type);
 
@@ -926,7 +920,7 @@ void Hid::SetNpadJoyAssignmentModeSingleByDefault(Kernel::HLERequestContext& ctx
     const auto parameters{rp.PopRaw<Parameters>()};
 
     applet_resource->GetController<Controller_NPad>(HidController::NPad)
-        .SetNpadMode(parameters.npad_id, Controller_NPad::NpadAssignments::Single);
+        .SetNpadMode(parameters.npad_id, Controller_NPad::NpadJoyAssignmentMode::Single);
 
     LOG_WARNING(Service_HID, "(STUBBED) called, npad_id={}, applet_resource_user_id={}",
                 parameters.npad_id, parameters.applet_resource_user_id);
@@ -948,7 +942,7 @@ void Hid::SetNpadJoyAssignmentModeSingle(Kernel::HLERequestContext& ctx) {
     const auto parameters{rp.PopRaw<Parameters>()};
 
     applet_resource->GetController<Controller_NPad>(HidController::NPad)
-        .SetNpadMode(parameters.npad_id, Controller_NPad::NpadAssignments::Single);
+        .SetNpadMode(parameters.npad_id, Controller_NPad::NpadJoyAssignmentMode::Single);
 
     LOG_WARNING(Service_HID,
                 "(STUBBED) called, npad_id={}, applet_resource_user_id={}, npad_joy_device_type={}",
@@ -970,7 +964,7 @@ void Hid::SetNpadJoyAssignmentModeDual(Kernel::HLERequestContext& ctx) {
     const auto parameters{rp.PopRaw<Parameters>()};
 
     applet_resource->GetController<Controller_NPad>(HidController::NPad)
-        .SetNpadMode(parameters.npad_id, Controller_NPad::NpadAssignments::Dual);
+        .SetNpadMode(parameters.npad_id, Controller_NPad::NpadJoyAssignmentMode::Dual);
 
     LOG_WARNING(Service_HID, "(STUBBED) called, npad_id={}, applet_resource_user_id={}",
                 parameters.npad_id, parameters.applet_resource_user_id);
@@ -1136,36 +1130,36 @@ void Hid::GetVibrationDeviceInfo(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto vibration_device_handle{rp.PopRaw<Controller_NPad::DeviceHandle>()};
 
-    VibrationDeviceInfo vibration_device_info;
+    Core::HID::VibrationDeviceInfo vibration_device_info;
 
     switch (vibration_device_handle.npad_type) {
-    case Controller_NPad::NpadType::ProController:
-    case Controller_NPad::NpadType::Handheld:
-    case Controller_NPad::NpadType::JoyconDual:
-    case Controller_NPad::NpadType::JoyconLeft:
-    case Controller_NPad::NpadType::JoyconRight:
+    case Core::HID::NpadType::ProController:
+    case Core::HID::NpadType::Handheld:
+    case Core::HID::NpadType::JoyconDual:
+    case Core::HID::NpadType::JoyconLeft:
+    case Core::HID::NpadType::JoyconRight:
     default:
-        vibration_device_info.type = VibrationDeviceType::LinearResonantActuator;
+        vibration_device_info.type = Core::HID::VibrationDeviceType::LinearResonantActuator;
         break;
-    case Controller_NPad::NpadType::GameCube:
-        vibration_device_info.type = VibrationDeviceType::GcErm;
+    case Core::HID::NpadType::GameCube:
+        vibration_device_info.type = Core::HID::VibrationDeviceType::GcErm;
         break;
-    case Controller_NPad::NpadType::Pokeball:
-        vibration_device_info.type = VibrationDeviceType::Unknown;
+    case Core::HID::NpadType::Pokeball:
+        vibration_device_info.type = Core::HID::VibrationDeviceType::Unknown;
         break;
     }
 
     switch (vibration_device_handle.device_index) {
     case Controller_NPad::DeviceIndex::Left:
-        vibration_device_info.position = VibrationDevicePosition::Left;
+        vibration_device_info.position = Core::HID::VibrationDevicePosition::Left;
         break;
     case Controller_NPad::DeviceIndex::Right:
-        vibration_device_info.position = VibrationDevicePosition::Right;
+        vibration_device_info.position = Core::HID::VibrationDevicePosition::Right;
         break;
     case Controller_NPad::DeviceIndex::None:
     default:
         UNREACHABLE_MSG("DeviceIndex should never be None!");
-        vibration_device_info.position = VibrationDevicePosition::None;
+        vibration_device_info.position = Core::HID::VibrationDevicePosition::None;
         break;
     }
 
@@ -1280,7 +1274,7 @@ void Hid::SendVibrationGcErmCommand(Kernel::HLERequestContext& ctx) {
     struct Parameters {
         Controller_NPad::DeviceHandle vibration_device_handle;
         u64 applet_resource_user_id;
-        VibrationGcErmCommand gc_erm_command;
+        Core::HID::VibrationGcErmCommand gc_erm_command;
     };
     static_assert(sizeof(Parameters) == 0x18, "Parameters has incorrect size.");
 
@@ -1294,21 +1288,21 @@ void Hid::SendVibrationGcErmCommand(Kernel::HLERequestContext& ctx) {
      */
     const auto vibration_value = [parameters] {
         switch (parameters.gc_erm_command) {
-        case VibrationGcErmCommand::Stop:
+        case Core::HID::VibrationGcErmCommand::Stop:
             return Controller_NPad::VibrationValue{
                 .amp_low = 0.0f,
                 .freq_low = 160.0f,
                 .amp_high = 0.0f,
                 .freq_high = 320.0f,
             };
-        case VibrationGcErmCommand::Start:
+        case Core::HID::VibrationGcErmCommand::Start:
             return Controller_NPad::VibrationValue{
                 .amp_low = 1.0f,
                 .freq_low = 160.0f,
                 .amp_high = 1.0f,
                 .freq_high = 320.0f,
             };
-        case VibrationGcErmCommand::StopHard:
+        case Core::HID::VibrationGcErmCommand::StopHard:
             return Controller_NPad::VibrationValue{
                 .amp_low = 0.0f,
                 .freq_low = 0.0f,
@@ -1350,7 +1344,7 @@ void Hid::GetActualVibrationGcErmCommand(Kernel::HLERequestContext& ctx) {
 
     const auto gc_erm_command = [last_vibration] {
         if (last_vibration.amp_low != 0.0f || last_vibration.amp_high != 0.0f) {
-            return VibrationGcErmCommand::Start;
+            return Core::HID::VibrationGcErmCommand::Start;
         }
 
         /**
@@ -1360,10 +1354,10 @@ void Hid::GetActualVibrationGcErmCommand(Kernel::HLERequestContext& ctx) {
          * This is done to reuse the controller vibration functions made for regular controllers.
          */
         if (last_vibration.freq_low == 0.0f && last_vibration.freq_high == 0.0f) {
-            return VibrationGcErmCommand::StopHard;
+            return Core::HID::VibrationGcErmCommand::StopHard;
         }
 
-        return VibrationGcErmCommand::Stop;
+        return Core::HID::VibrationGcErmCommand::Stop;
     }();
 
     LOG_DEBUG(Service_HID,
@@ -2039,10 +2033,6 @@ public:
     }
 };
 
-void ReloadInputDevices() {
-    Settings::values.is_device_reload_pending.store(true);
-}
-
 void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {
     std::make_shared<Hid>(system)->InstallAsService(service_manager);
     std::make_shared<HidBus>(system)->InstallAsService(service_manager);

src/core/hle/service/hid/hid.h

@@ -161,38 +161,11 @@ private:
     void GetNpadCommunicationMode(Kernel::HLERequestContext& ctx);
     void SetTouchScreenConfiguration(Kernel::HLERequestContext& ctx);
 
-    enum class VibrationDeviceType : u32 {
-        Unknown = 0,
-        LinearResonantActuator = 1,
-        GcErm = 2,
-    };
-
-    enum class VibrationDevicePosition : u32 {
-        None = 0,
-        Left = 1,
-        Right = 2,
-    };
-
-    enum class VibrationGcErmCommand : u64 {
-        Stop = 0,
-        Start = 1,
-        StopHard = 2,
-    };
-
-    struct VibrationDeviceInfo {
-        VibrationDeviceType type{};
-        VibrationDevicePosition position{};
-    };
-    static_assert(sizeof(VibrationDeviceInfo) == 0x8, "VibrationDeviceInfo has incorrect size.");
-
     std::shared_ptr<IAppletResource> applet_resource;
 
     KernelHelpers::ServiceContext service_context;
 };
 
-/// Reload input devices. Used when input configuration changed
-void ReloadInputDevices();
-
 /// Registers all HID services with the specified service manager.
 void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system);
 

src/core/hle/service/hid/ring_lifo.h

@@ -0,0 +1,56 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+#include "common/swap.h"
+
+namespace Service::HID {
+constexpr std::size_t max_buffer_size = 17;
+
+template <typename State>
+struct AtomicStorage {
+    s64 sampling_number;
+    State state;
+};
+
+template <typename State>
+struct Lifo {
+    s64 timestamp{};
+    s64 total_buffer_count = max_buffer_size;
+    s64 buffer_tail{};
+    s64 buffer_count{};
+    std::array<AtomicStorage<State>, max_buffer_size> entries{};
+
+    const AtomicStorage<State>& ReadCurrentEntry() const {
+        return entries[buffer_tail];
+    }
+
+    const AtomicStorage<State>& ReadPreviousEntry() const {
+        return entries[GetPreviousEntryIndex()];
+    }
+
+    std::size_t GetPreviousEntryIndex() const {
+        return (buffer_tail + total_buffer_count - 1) % total_buffer_count;
+    }
+
+    std::size_t GetNextEntryIndex() const {
+        return (buffer_tail + 1) % total_buffer_count;
+    }
+
+    void WriteNextEntry(const State& new_state) {
+        if (buffer_count < total_buffer_count - 1) {
+            buffer_count++;
+        }
+        buffer_tail = GetNextEntryIndex();
+        const auto& previous_entry = ReadPreviousEntry();
+        entries[buffer_tail].sampling_number = previous_entry.sampling_number + 1;
+        entries[buffer_tail].state = new_state;
+    }
+};
+
+} // namespace Service::HID

src/input_common/CMakeLists.txt

@@ -1,36 +1,32 @@
 add_library(input_common STATIC
-    analog_from_button.cpp
-    analog_from_button.h
-    keyboard.cpp
-    keyboard.h
+    drivers/gc_adapter.cpp
+    drivers/gc_adapter.h
+    drivers/keyboard.cpp
+    drivers/keyboard.h
+    drivers/mouse.cpp
+    drivers/mouse.h
+    drivers/sdl_driver.cpp
+    drivers/sdl_driver.h
+    drivers/tas_input.cpp
+    drivers/tas_input.h
+    drivers/touch_screen.cpp
+    drivers/touch_screen.h
+    drivers/udp_client.cpp
+    drivers/udp_client.h
+    helpers/stick_from_buttons.cpp
+    helpers/stick_from_buttons.h
+    helpers/touch_from_buttons.cpp
+    helpers/touch_from_buttons.h
+    helpers/udp_protocol.cpp
+    helpers/udp_protocol.h
+    input_engine.cpp
+    input_engine.h
+    input_mapping.cpp
+    input_mapping.h
+    input_poller.cpp
+    input_poller.h
     main.cpp
     main.h
-    motion_from_button.cpp
-    motion_from_button.h
-    motion_input.cpp
-    motion_input.h
-    touch_from_button.cpp
-    touch_from_button.h
-    gcadapter/gc_adapter.cpp
-    gcadapter/gc_adapter.h
-    gcadapter/gc_poller.cpp
-    gcadapter/gc_poller.h
-    mouse/mouse_input.cpp
-    mouse/mouse_input.h
-    mouse/mouse_poller.cpp
-    mouse/mouse_poller.h
-    sdl/sdl.cpp
-    sdl/sdl.h
-    tas/tas_input.cpp
-    tas/tas_input.h
-    tas/tas_poller.cpp
-    tas/tas_poller.h
-    udp/client.cpp
-    udp/client.h
-    udp/protocol.cpp
-    udp/protocol.h
-    udp/udp.cpp
-    udp/udp.h
 )
 
 if (MSVC)
@@ -57,8 +53,8 @@ endif()
 
 if (ENABLE_SDL2)
     target_sources(input_common PRIVATE
-        sdl/sdl_impl.cpp
-        sdl/sdl_impl.h
+        drivers/sdl_driver.cpp
+        drivers/sdl_driver.h
     )
     target_link_libraries(input_common PRIVATE SDL2)
     target_compile_definitions(input_common PRIVATE HAVE_SDL2)

src/input_common/drivers/gc_adapter.cpp

@@ -0,0 +1,539 @@
+// Copyright 2014 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include <fmt/format.h>
+#include <libusb.h>
+
+#include "common/logging/log.h"
+#include "common/param_package.h"
+#include "common/settings_input.h"
+#include "common/thread.h"
+#include "input_common/drivers/gc_adapter.h"
+
+namespace InputCommon {
+
+class LibUSBContext {
+public:
+    explicit LibUSBContext() {
+        init_result = libusb_init(&ctx);
+    }
+
+    ~LibUSBContext() {
+        libusb_exit(ctx);
+    }
+
+    LibUSBContext& operator=(const LibUSBContext&) = delete;
+    LibUSBContext(const LibUSBContext&) = delete;
+
+    LibUSBContext& operator=(LibUSBContext&&) noexcept = delete;
+    LibUSBContext(LibUSBContext&&) noexcept = delete;
+
+    [[nodiscard]] int InitResult() const noexcept {
+        return init_result;
+    }
+
+    [[nodiscard]] libusb_context* get() noexcept {
+        return ctx;
+    }
+
+private:
+    libusb_context* ctx;
+    int init_result{};
+};
+
+class LibUSBDeviceHandle {
+public:
+    explicit LibUSBDeviceHandle(libusb_context* ctx, uint16_t vid, uint16_t pid) noexcept {
+        handle = libusb_open_device_with_vid_pid(ctx, vid, pid);
+    }
+
+    ~LibUSBDeviceHandle() noexcept {
+        if (handle) {
+            libusb_release_interface(handle, 1);
+            libusb_close(handle);
+        }
+    }
+
+    LibUSBDeviceHandle& operator=(const LibUSBDeviceHandle&) = delete;
+    LibUSBDeviceHandle(const LibUSBDeviceHandle&) = delete;
+
+    LibUSBDeviceHandle& operator=(LibUSBDeviceHandle&&) noexcept = delete;
+    LibUSBDeviceHandle(LibUSBDeviceHandle&&) noexcept = delete;
+
+    [[nodiscard]] libusb_device_handle* get() noexcept {
+        return handle;
+    }
+
+private:
+    libusb_device_handle* handle{};
+};
+
+GCAdapter::GCAdapter(const std::string input_engine_) : InputEngine(input_engine_) {
+    if (usb_adapter_handle) {
+        return;
+    }
+    LOG_DEBUG(Input, "Initialization started");
+
+    libusb_ctx = std::make_unique<LibUSBContext>();
+    const int init_res = libusb_ctx->InitResult();
+    if (init_res == LIBUSB_SUCCESS) {
+        adapter_scan_thread =
+            std::jthread([this](std::stop_token stop_token) { AdapterScanThread(stop_token); });
+    } else {
+        LOG_ERROR(Input, "libusb could not be initialized. failed with error = {}", init_res);
+    }
+}
+
+GCAdapter::~GCAdapter() {
+    Reset();
+}
+
+void GCAdapter::AdapterInputThread(std::stop_token stop_token) {
+    LOG_DEBUG(Input, "Input thread started");
+    Common::SetCurrentThreadName("yuzu:input:GCAdapter");
+    s32 payload_size{};
+    AdapterPayload adapter_payload{};
+
+    adapter_scan_thread = {};
+
+    while (!stop_token.stop_requested()) {
+        libusb_interrupt_transfer(usb_adapter_handle->get(), input_endpoint, adapter_payload.data(),
+                                  static_cast<s32>(adapter_payload.size()), &payload_size, 16);
+        if (IsPayloadCorrect(adapter_payload, payload_size)) {
+            UpdateControllers(adapter_payload);
+            UpdateVibrations();
+        }
+        std::this_thread::yield();
+    }
+
+    if (restart_scan_thread) {
+        adapter_scan_thread =
+            std::jthread([this](std::stop_token token) { AdapterScanThread(token); });
+        restart_scan_thread = false;
+    }
+}
+
+bool GCAdapter::IsPayloadCorrect(const AdapterPayload& adapter_payload, s32 payload_size) {
+    if (payload_size != static_cast<s32>(adapter_payload.size()) ||
+        adapter_payload[0] != LIBUSB_DT_HID) {
+        LOG_DEBUG(Input, "Error reading payload (size: {}, type: {:02x})", payload_size,
+                  adapter_payload[0]);
+        if (input_error_counter++ > 20) {
+            LOG_ERROR(Input, "Timeout, Is the adapter connected?");
+            adapter_input_thread.request_stop();
+            restart_scan_thread = true;
+        }
+        return false;
+    }
+
+    input_error_counter = 0;
+    return true;
+}
+
+void GCAdapter::UpdateControllers(const AdapterPayload& adapter_payload) {
+    for (std::size_t port = 0; port < pads.size(); ++port) {
+        const std::size_t offset = 1 + (9 * port);
+        const auto type = static_cast<ControllerTypes>(adapter_payload[offset] >> 4);
+        UpdatePadType(port, type);
+        if (DeviceConnected(port)) {
+            const u8 b1 = adapter_payload[offset + 1];
+            const u8 b2 = adapter_payload[offset + 2];
+            UpdateStateButtons(port, b1, b2);
+            UpdateStateAxes(port, adapter_payload);
+        }
+    }
+}
+
+void GCAdapter::UpdatePadType(std::size_t port, ControllerTypes pad_type) {
+    if (pads[port].type == pad_type) {
+        return;
+    }
+    // Device changed reset device and set new type
+    pads[port].axis_origin = {};
+    pads[port].reset_origin_counter = {};
+    pads[port].enable_vibration = {};
+    pads[port].rumble_amplitude = {};
+    pads[port].type = pad_type;
+}
+
+void GCAdapter::UpdateStateButtons(std::size_t port, [[maybe_unused]] u8 b1,
+                                   [[maybe_unused]] u8 b2) {
+    if (port >= pads.size()) {
+        return;
+    }
+
+    static constexpr std::array<PadButton, 8> b1_buttons{
+        PadButton::ButtonA,    PadButton::ButtonB,     PadButton::ButtonX,    PadButton::ButtonY,
+        PadButton::ButtonLeft, PadButton::ButtonRight, PadButton::ButtonDown, PadButton::ButtonUp,
+    };
+
+    static constexpr std::array<PadButton, 4> b2_buttons{
+        PadButton::ButtonStart,
+        PadButton::TriggerZ,
+        PadButton::TriggerR,
+        PadButton::TriggerL,
+    };
+
+    for (std::size_t i = 0; i < b1_buttons.size(); ++i) {
+        const bool button_status = (b1 & (1U << i)) != 0;
+        const int button = static_cast<int>(b1_buttons[i]);
+        SetButton(pads[port].identifier, button, button_status);
+    }
+
+    for (std::size_t j = 0; j < b2_buttons.size(); ++j) {
+        const bool button_status = (b2 & (1U << j)) != 0;
+        const int button = static_cast<int>(b2_buttons[j]);
+        SetButton(pads[port].identifier, button, button_status);
+    }
+}
+
+void GCAdapter::UpdateStateAxes(std::size_t port, const AdapterPayload& adapter_payload) {
+    if (port >= pads.size()) {
+        return;
+    }
+
+    const std::size_t offset = 1 + (9 * port);
+    static constexpr std::array<PadAxes, 6> axes{
+        PadAxes::StickX,    PadAxes::StickY,      PadAxes::SubstickX,
+        PadAxes::SubstickY, PadAxes::TriggerLeft, PadAxes::TriggerRight,
+    };
+
+    for (const PadAxes axis : axes) {
+        const auto index = static_cast<std::size_t>(axis);
+        const u8 axis_value = adapter_payload[offset + 3 + index];
+        if (pads[port].reset_origin_counter <= 18) {
+            if (pads[port].axis_origin[index] != axis_value) {
+                pads[port].reset_origin_counter = 0;
+            }
+            pads[port].axis_origin[index] = axis_value;
+            pads[port].reset_origin_counter++;
+        }
+        const f32 axis_status = (axis_value - pads[port].axis_origin[index]) / 100.0f;
+        SetAxis(pads[port].identifier, static_cast<int>(index), axis_status);
+    }
+}
+
+void GCAdapter::AdapterScanThread(std::stop_token stop_token) {
+    Common::SetCurrentThreadName("yuzu:input:ScanGCAdapter");
+    usb_adapter_handle = nullptr;
+    pads = {};
+    while (!stop_token.stop_requested() && !Setup()) {
+        std::this_thread::sleep_for(std::chrono::seconds(2));
+    }
+}
+
+bool GCAdapter::Setup() {
+    constexpr u16 nintendo_vid = 0x057e;
+    constexpr u16 gc_adapter_pid = 0x0337;
+    usb_adapter_handle =
+        std::make_unique<LibUSBDeviceHandle>(libusb_ctx->get(), nintendo_vid, gc_adapter_pid);
+    if (!usb_adapter_handle->get()) {
+        return false;
+    }
+    if (!CheckDeviceAccess()) {
+        usb_adapter_handle = nullptr;
+        return false;
+    }
+
+    libusb_device* const device = libusb_get_device(usb_adapter_handle->get());
+
+    LOG_INFO(Input, "GC adapter is now connected");
+    // GC Adapter found and accessible, registering it
+    if (GetGCEndpoint(device)) {
+        rumble_enabled = true;
+        input_error_counter = 0;
+        output_error_counter = 0;
+
+        std::size_t port = 0;
+        for (GCController& pad : pads) {
+            pad.identifier = {
+                .guid = Common::UUID{Common::INVALID_UUID},
+                .port = port++,
+                .pad = 0,
+            };
+            PreSetController(pad.identifier);
+        }
+
+        adapter_input_thread =
+            std::jthread([this](std::stop_token stop_token) { AdapterInputThread(stop_token); });
+        return true;
+    }
+    return false;
+}
+
+bool GCAdapter::CheckDeviceAccess() {
+    s32 kernel_driver_error = libusb_kernel_driver_active(usb_adapter_handle->get(), 0);
+    if (kernel_driver_error == 1) {
+        kernel_driver_error = libusb_detach_kernel_driver(usb_adapter_handle->get(), 0);
+        if (kernel_driver_error != 0 && kernel_driver_error != LIBUSB_ERROR_NOT_SUPPORTED) {
+            LOG_ERROR(Input, "libusb_detach_kernel_driver failed with error = {}",
+                      kernel_driver_error);
+        }
+    }
+
+    // This fixes payload problems from offbrand GCAdapters
+    const s32 control_transfer_error =
+        libusb_control_transfer(usb_adapter_handle->get(), 0x21, 11, 0x0001, 0, nullptr, 0, 1000);
+    if (control_transfer_error < 0) {
+        LOG_ERROR(Input, "libusb_control_transfer failed with error= {}", control_transfer_error);
+    }
+
+    if (kernel_driver_error && kernel_driver_error != LIBUSB_ERROR_NOT_SUPPORTED) {
+        usb_adapter_handle = nullptr;
+        return false;
+    }
+
+    const int interface_claim_error = libusb_claim_interface(usb_adapter_handle->get(), 0);
+    if (interface_claim_error) {
+        LOG_ERROR(Input, "libusb_claim_interface failed with error = {}", interface_claim_error);
+        usb_adapter_handle = nullptr;
+        return false;
+    }
+
+    return true;
+}
+
+bool GCAdapter::GetGCEndpoint(libusb_device* device) {
+    libusb_config_descriptor* config = nullptr;
+    const int config_descriptor_return = libusb_get_config_descriptor(device, 0, &config);
+    if (config_descriptor_return != LIBUSB_SUCCESS) {
+        LOG_ERROR(Input, "libusb_get_config_descriptor failed with error = {}",
+                  config_descriptor_return);
+        return false;
+    }
+
+    for (u8 ic = 0; ic < config->bNumInterfaces; ic++) {
+        const libusb_interface* interfaceContainer = &config->interface[ic];
+        for (int i = 0; i < interfaceContainer->num_altsetting; i++) {
+            const libusb_interface_descriptor* interface = &interfaceContainer->altsetting[i];
+            for (u8 e = 0; e < interface->bNumEndpoints; e++) {
+                const libusb_endpoint_descriptor* endpoint = &interface->endpoint[e];
+                if ((endpoint->bEndpointAddress & LIBUSB_ENDPOINT_IN) != 0) {
+                    input_endpoint = endpoint->bEndpointAddress;
+                } else {
+                    output_endpoint = endpoint->bEndpointAddress;
+                }
+            }
+        }
+    }
+    // This transfer seems to be responsible for clearing the state of the adapter
+    // Used to clear the "busy" state of when the device is unexpectedly unplugged
+    unsigned char clear_payload = 0x13;
+    libusb_interrupt_transfer(usb_adapter_handle->get(), output_endpoint, &clear_payload,
+                              sizeof(clear_payload), nullptr, 16);
+    return true;
+}
+
+Common::Input::VibrationError GCAdapter::SetRumble(const PadIdentifier& identifier,
+                                                   const Common::Input::VibrationStatus vibration) {
+    const auto mean_amplitude = (vibration.low_amplitude + vibration.high_amplitude) * 0.5f;
+    const auto processed_amplitude =
+        static_cast<u8>((mean_amplitude + std::pow(mean_amplitude, 0.3f)) * 0.5f * 0x8);
+
+    pads[identifier.port].rumble_amplitude = processed_amplitude;
+
+    if (!rumble_enabled) {
+        return Common::Input::VibrationError::Disabled;
+    }
+    return Common::Input::VibrationError::None;
+}
+
+void GCAdapter::UpdateVibrations() {
+    // Use 8 states to keep the switching between on/off fast enough for
+    // a human to feel different vibration strenght
+    // More states == more rumble strengths == slower update time
+    constexpr u8 vibration_states = 8;
+
+    vibration_counter = (vibration_counter + 1) % vibration_states;
+
+    for (GCController& pad : pads) {
+        const bool vibrate = pad.rumble_amplitude > vibration_counter;
+        vibration_changed |= vibrate != pad.enable_vibration;
+        pad.enable_vibration = vibrate;
+    }
+    SendVibrations();
+}
+
+void GCAdapter::SendVibrations() {
+    if (!rumble_enabled || !vibration_changed) {
+        return;
+    }
+    s32 size{};
+    constexpr u8 rumble_command = 0x11;
+    const u8 p1 = pads[0].enable_vibration;
+    const u8 p2 = pads[1].enable_vibration;
+    const u8 p3 = pads[2].enable_vibration;
+    const u8 p4 = pads[3].enable_vibration;
+    std::array<u8, 5> payload = {rumble_command, p1, p2, p3, p4};
+    const int err =
+        libusb_interrupt_transfer(usb_adapter_handle->get(), output_endpoint, payload.data(),
+                                  static_cast<s32>(payload.size()), &size, 16);
+    if (err) {
+        LOG_DEBUG(Input, "Libusb write failed: {}", libusb_error_name(err));
+        if (output_error_counter++ > 5) {
+            LOG_ERROR(Input, "Output timeout, Rumble disabled");
+            rumble_enabled = false;
+        }
+        return;
+    }
+    output_error_counter = 0;
+    vibration_changed = false;
+}
+
+bool GCAdapter::DeviceConnected(std::size_t port) const {
+    return pads[port].type != ControllerTypes::None;
+}
+
+void GCAdapter::Reset() {
+    adapter_scan_thread = {};
+    adapter_input_thread = {};
+    usb_adapter_handle = nullptr;
+    pads = {};
+    libusb_ctx = nullptr;
+}
+
+std::vector<Common::ParamPackage> GCAdapter::GetInputDevices() const {
+    std::vector<Common::ParamPackage> devices;
+    for (std::size_t port = 0; port < pads.size(); ++port) {
+        if (!DeviceConnected(port)) {
+            continue;
+        }
+        Common::ParamPackage identifier{};
+        identifier.Set("engine", GetEngineName());
+        identifier.Set("display", fmt::format("Gamecube Controller {}", port + 1));
+        identifier.Set("port", static_cast<int>(port));
+        devices.emplace_back(identifier);
+    }
+    return devices;
+}
+
+ButtonMapping GCAdapter::GetButtonMappingForDevice(const Common::ParamPackage& params) {
+    // This list is missing ZL/ZR since those are not considered buttons.
+    // We will add those afterwards
+    // This list also excludes any button that can't be really mapped
+    static constexpr std::array<std::pair<Settings::NativeButton::Values, PadButton>, 12>
+        switch_to_gcadapter_button = {
+            std::pair{Settings::NativeButton::A, PadButton::ButtonA},
+            {Settings::NativeButton::B, PadButton::ButtonB},
+            {Settings::NativeButton::X, PadButton::ButtonX},
+            {Settings::NativeButton::Y, PadButton::ButtonY},
+            {Settings::NativeButton::Plus, PadButton::ButtonStart},
+            {Settings::NativeButton::DLeft, PadButton::ButtonLeft},
+            {Settings::NativeButton::DUp, PadButton::ButtonUp},
+            {Settings::NativeButton::DRight, PadButton::ButtonRight},
+            {Settings::NativeButton::DDown, PadButton::ButtonDown},
+            {Settings::NativeButton::SL, PadButton::TriggerL},
+            {Settings::NativeButton::SR, PadButton::TriggerR},
+            {Settings::NativeButton::R, PadButton::TriggerZ},
+        };
+    if (!params.Has("port")) {
+        return {};
+    }
+
+    ButtonMapping mapping{};
+    for (const auto& [switch_button, gcadapter_button] : switch_to_gcadapter_button) {
+        Common::ParamPackage button_params{};
+        button_params.Set("engine", GetEngineName());
+        button_params.Set("port", params.Get("port", 0));
+        button_params.Set("button", static_cast<int>(gcadapter_button));
+        mapping.insert_or_assign(switch_button, std::move(button_params));
+    }
+
+    // Add the missing bindings for ZL/ZR
+    static constexpr std::array<std::tuple<Settings::NativeButton::Values, PadButton, PadAxes>, 2>
+        switch_to_gcadapter_axis = {
+            std::tuple{Settings::NativeButton::ZL, PadButton::TriggerL, PadAxes::TriggerLeft},
+            {Settings::NativeButton::ZR, PadButton::TriggerR, PadAxes::TriggerRight},
+        };
+    for (const auto& [switch_button, gcadapter_buton, gcadapter_axis] : switch_to_gcadapter_axis) {
+        Common::ParamPackage button_params{};
+        button_params.Set("engine", GetEngineName());
+        button_params.Set("port", params.Get("port", 0));
+        button_params.Set("button", static_cast<s32>(gcadapter_buton));
+        button_params.Set("axis", static_cast<s32>(gcadapter_axis));
+        button_params.Set("threshold", 0.5f);
+        button_params.Set("range", 1.9f);
+        button_params.Set("direction", "+");
+        mapping.insert_or_assign(switch_button, std::move(button_params));
+    }
+    return mapping;
+}
+
+AnalogMapping GCAdapter::GetAnalogMappingForDevice(const Common::ParamPackage& params) {
+    if (!params.Has("port")) {
+        return {};
+    }
+
+    AnalogMapping mapping = {};
+    Common::ParamPackage left_analog_params;
+    left_analog_params.Set("engine", GetEngineName());
+    left_analog_params.Set("port", params.Get("port", 0));
+    left_analog_params.Set("axis_x", static_cast<int>(PadAxes::StickX));
+    left_analog_params.Set("axis_y", static_cast<int>(PadAxes::StickY));
+    mapping.insert_or_assign(Settings::NativeAnalog::LStick, std::move(left_analog_params));
+    Common::ParamPackage right_analog_params;
+    right_analog_params.Set("engine", GetEngineName());
+    right_analog_params.Set("port", params.Get("port", 0));
+    right_analog_params.Set("axis_x", static_cast<int>(PadAxes::SubstickX));
+    right_analog_params.Set("axis_y", static_cast<int>(PadAxes::SubstickY));
+    mapping.insert_or_assign(Settings::NativeAnalog::RStick, std::move(right_analog_params));
+    return mapping;
+}
+
+std::string GCAdapter::GetUIButtonName(const Common::ParamPackage& params) const {
+    PadButton button = static_cast<PadButton>(params.Get("button", 0));
+    switch (button) {
+    case PadButton::ButtonLeft:
+        return "left";
+        break;
+    case PadButton::ButtonRight:
+        return "right";
+        break;
+    case PadButton::ButtonDown:
+        return "down";
+        break;
+    case PadButton::ButtonUp:
+        return "up";
+        break;
+    case PadButton::TriggerZ:
+        return "Z";
+        break;
+    case PadButton::TriggerR:
+        return "R";
+        break;
+    case PadButton::TriggerL:
+        return "L";
+        break;
+    case PadButton::ButtonA:
+        return "A";
+        break;
+    case PadButton::ButtonB:
+        return "B";
+        break;
+    case PadButton::ButtonX:
+        return "X";
+        break;
+    case PadButton::ButtonY:
+        return "Y";
+        break;
+    case PadButton::ButtonStart:
+        return "start";
+        break;
+    default:
+        return "Unkown GC";
+    }
+}
+
+std::string GCAdapter::GetUIName(const Common::ParamPackage& params) const {
+    if (params.Has("button")) {
+        return fmt::format("Button {}", GetUIButtonName(params));
+    }
+    if (params.Has("axis")) {
+        return fmt::format("Axis {}", params.Get("axis", 0));
+    }
+
+    return "Bad GC Adapter";
+}
+
+} // namespace InputCommon

src/input_common/drivers/gc_adapter.h

@@ -0,0 +1,135 @@
+// Copyright 2014 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <memory>
+#include <mutex>
+#include <stop_token>
+#include <string>
+#include <thread>
+
+#include "input_common/input_engine.h"
+
+struct libusb_context;
+struct libusb_device;
+struct libusb_device_handle;
+
+namespace InputCommon {
+
+class LibUSBContext;
+class LibUSBDeviceHandle;
+
+class GCAdapter : public InputCommon::InputEngine {
+public:
+    explicit GCAdapter(const std::string input_engine_);
+    ~GCAdapter();
+
+    Common::Input::VibrationError SetRumble(
+        const PadIdentifier& identifier, const Common::Input::VibrationStatus vibration) override;
+
+    /// Used for automapping features
+    std::vector<Common::ParamPackage> GetInputDevices() const override;
+    ButtonMapping GetButtonMappingForDevice(const Common::ParamPackage& params) override;
+    AnalogMapping GetAnalogMappingForDevice(const Common::ParamPackage& params) override;
+    std::string GetUIName(const Common::ParamPackage& params) const override;
+
+private:
+    enum class PadButton {
+        Undefined = 0x0000,
+        ButtonLeft = 0x0001,
+        ButtonRight = 0x0002,
+        ButtonDown = 0x0004,
+        ButtonUp = 0x0008,
+        TriggerZ = 0x0010,
+        TriggerR = 0x0020,
+        TriggerL = 0x0040,
+        ButtonA = 0x0100,
+        ButtonB = 0x0200,
+        ButtonX = 0x0400,
+        ButtonY = 0x0800,
+        ButtonStart = 0x1000,
+    };
+
+    enum class PadAxes : u8 {
+        StickX,
+        StickY,
+        SubstickX,
+        SubstickY,
+        TriggerLeft,
+        TriggerRight,
+        Undefined,
+    };
+
+    enum class ControllerTypes {
+        None,
+        Wired,
+        Wireless,
+    };
+
+    struct GCController {
+        ControllerTypes type = ControllerTypes::None;
+        PadIdentifier identifier{};
+        bool enable_vibration = false;
+        u8 rumble_amplitude{};
+        std::array<u8, 6> axis_origin{};
+        u8 reset_origin_counter{};
+    };
+
+    using AdapterPayload = std::array<u8, 37>;
+
+    void UpdatePadType(std::size_t port, ControllerTypes pad_type);
+    void UpdateControllers(const AdapterPayload& adapter_payload);
+    void UpdateStateButtons(std::size_t port, u8 b1, u8 b2);
+    void UpdateStateAxes(std::size_t port, const AdapterPayload& adapter_payload);
+
+    void AdapterInputThread(std::stop_token stop_token);
+
+    void AdapterScanThread(std::stop_token stop_token);
+
+    bool IsPayloadCorrect(const AdapterPayload& adapter_payload, s32 payload_size);
+
+    /// For use in initialization, querying devices to find the adapter
+    bool Setup();
+
+    /// Returns true if we successfully gain access to GC Adapter
+    bool CheckDeviceAccess();
+
+    /// Captures GC Adapter endpoint address
+    /// Returns true if the endpoint was set correctly
+    bool GetGCEndpoint(libusb_device* device);
+
+    /// Returns true if there is a device connected to port
+    bool DeviceConnected(std::size_t port) const;
+
+    /// For shutting down, clear all data, join all threads, release usb
+    void Reset();
+
+    void UpdateVibrations();
+
+    /// Updates vibration state of all controllers
+    void SendVibrations();
+
+    std::string GetUIButtonName(const Common::ParamPackage& params) const;
+
+    std::unique_ptr<LibUSBDeviceHandle> usb_adapter_handle;
+    std::array<GCController, 4> pads;
+
+    std::jthread adapter_input_thread;
+    std::jthread adapter_scan_thread;
+    bool restart_scan_thread{};
+
+    std::unique_ptr<LibUSBContext> libusb_ctx;
+
+    u8 input_endpoint{0};
+    u8 output_endpoint{0};
+    u8 input_error_counter{0};
+    u8 output_error_counter{0};
+    int vibration_counter{0};
+
+    bool rumble_enabled{true};
+    bool vibration_changed{true};
+};
+} // namespace InputCommon

src/input_common/drivers/keyboard.cpp

@@ -0,0 +1,41 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "common/param_package.h"
+#include "input_common/drivers/keyboard.h"
+
+namespace InputCommon {
+
+constexpr PadIdentifier identifier = {
+    .guid = Common::UUID{Common::INVALID_UUID},
+    .port = 0,
+    .pad = 0,
+};
+
+Keyboard::Keyboard(const std::string& input_engine_) : InputEngine(input_engine_) {
+    PreSetController(identifier);
+}
+
+void Keyboard::PressKey(int key_code) {
+    SetButton(identifier, key_code, true);
+}
+
+void Keyboard::ReleaseKey(int key_code) {
+    SetButton(identifier, key_code, false);
+}
+
+void Keyboard::ReleaseAllKeys() {
+    ResetButtonState();
+}
+
+std::vector<Common::ParamPackage> Keyboard::GetInputDevices() const {
+    std::vector<Common::ParamPackage> devices;
+    devices.emplace_back(Common::ParamPackage{
+        {"engine", GetEngineName()},
+        {"display", "Keyboard Only"},
+    });
+    return devices;
+}
+
+} // namespace InputCommon

src/input_common/drivers/keyboard.h

@@ -0,0 +1,37 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include "input_common/input_engine.h"
+
+namespace InputCommon {
+
+/**
+ * A button device factory representing a keyboard. It receives keyboard events and forward them
+ * to all button devices it created.
+ */
+class Keyboard final : public InputCommon::InputEngine {
+public:
+    explicit Keyboard(const std::string& input_engine_);
+
+    /**
+     * Sets the status of all buttons bound with the key to pressed
+     * @param key_code the code of the key to press
+     */
+    void PressKey(int key_code);
+
+    /**
+     * Sets the status of all buttons bound with the key to released
+     * @param key_code the code of the key to release
+     */
+    void ReleaseKey(int key_code);
+
+    void ReleaseAllKeys();
+
+    /// Used for automapping features
+    std::vector<Common::ParamPackage> GetInputDevices() const override;
+};
+
+} // namespace InputCommon

src/input_common/drivers/mouse.cpp

@@ -0,0 +1,158 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include <stop_token>
+#include <thread>
+#include <fmt/format.h>
+
+#include "common/param_package.h"
+#include "common/settings.h"
+#include "common/thread.h"
+#include "input_common/drivers/mouse.h"
+
+namespace InputCommon {
+constexpr int touch_axis_x = 10;
+constexpr int touch_axis_y = 11;
+constexpr PadIdentifier identifier = {
+    .guid = Common::UUID{Common::INVALID_UUID},
+    .port = 0,
+    .pad = 0,
+};
+
+Mouse::Mouse(const std::string input_engine_) : InputEngine(input_engine_) {
+    PreSetController(identifier);
+    update_thread = std::jthread([this](std::stop_token stop_token) { UpdateThread(stop_token); });
+}
+
+void Mouse::UpdateThread(std::stop_token stop_token) {
+    Common::SetCurrentThreadName("yuzu:input:Mouse");
+    constexpr int update_time = 10;
+    while (!stop_token.stop_requested()) {
+        if (Settings::values.mouse_panning) {
+            // Slow movement by 4%
+            last_mouse_change *= 0.96f;
+            const float sensitivity =
+                Settings::values.mouse_panning_sensitivity.GetValue() * 0.022f;
+            SetAxis(identifier, 0, last_mouse_change.x * sensitivity);
+            SetAxis(identifier, 1, -last_mouse_change.y * sensitivity);
+        }
+
+        if (mouse_panning_timout++ > 20) {
+            StopPanning();
+        }
+        std::this_thread::sleep_for(std::chrono::milliseconds(update_time));
+    }
+}
+
+void Mouse::MouseMove(int x, int y, f32 touch_x, f32 touch_y, int center_x, int center_y) {
+    SetAxis(identifier, touch_axis_x, touch_x);
+    SetAxis(identifier, touch_axis_y, touch_y);
+
+    if (Settings::values.mouse_panning) {
+        auto mouse_change =
+            (Common::MakeVec(x, y) - Common::MakeVec(center_x, center_y)).Cast<float>();
+        mouse_panning_timout = 0;
+
+        const auto move_distance = mouse_change.Length();
+        if (move_distance == 0) {
+            return;
+        }
+
+        // Make slow movements at least 3 units on lenght
+        if (move_distance < 3.0f) {
+            // Normalize value
+            mouse_change /= move_distance;
+            mouse_change *= 3.0f;
+        }
+
+        // Average mouse movements
+        last_mouse_change = (last_mouse_change * 0.91f) + (mouse_change * 0.09f);
+
+        const auto last_move_distance = last_mouse_change.Length();
+
+        // Make fast movements clamp to 8 units on lenght
+        if (last_move_distance > 8.0f) {
+            // Normalize value
+            last_mouse_change /= last_move_distance;
+            last_mouse_change *= 8.0f;
+        }
+
+        // Ignore average if it's less than 1 unit and use current movement value
+        if (last_move_distance < 1.0f) {
+            last_mouse_change = mouse_change / mouse_change.Length();
+        }
+
+        return;
+    }
+
+    if (button_pressed) {
+        const auto mouse_move = Common::MakeVec<int>(x, y) - mouse_origin;
+        const float sensitivity = Settings::values.mouse_panning_sensitivity.GetValue() * 0.0012f;
+        SetAxis(identifier, 0, static_cast<float>(mouse_move.x) * sensitivity);
+        SetAxis(identifier, 1, static_cast<float>(-mouse_move.y) * sensitivity);
+    }
+}
+
+void Mouse::PressButton(int x, int y, f32 touch_x, f32 touch_y, MouseButton button) {
+    SetAxis(identifier, touch_axis_x, touch_x);
+    SetAxis(identifier, touch_axis_y, touch_y);
+    SetButton(identifier, static_cast<int>(button), true);
+    // Set initial analog parameters
+    mouse_origin = {x, y};
+    last_mouse_position = {x, y};
+    button_pressed = true;
+}
+
+void Mouse::ReleaseButton(MouseButton button) {
+    SetButton(identifier, static_cast<int>(button), false);
+
+    if (!Settings::values.mouse_panning) {
+        SetAxis(identifier, 0, 0);
+        SetAxis(identifier, 1, 0);
+    }
+    button_pressed = false;
+}
+
+void Mouse::ReleaseAllButtons() {
+    ResetButtonState();
+    button_pressed = false;
+}
+
+void Mouse::StopPanning() {
+    last_mouse_change = {};
+}
+
+std::vector<Common::ParamPackage> Mouse::GetInputDevices() const {
+    std::vector<Common::ParamPackage> devices;
+    devices.emplace_back(Common::ParamPackage{
+        {"engine", GetEngineName()},
+        {"display", "Keyboard/Mouse"},
+    });
+    return devices;
+}
+
+AnalogMapping Mouse::GetAnalogMappingForDevice(
+    [[maybe_unused]] const Common::ParamPackage& params) {
+    // Only overwrite different buttons from default
+    AnalogMapping mapping = {};
+    Common::ParamPackage right_analog_params;
+    right_analog_params.Set("engine", GetEngineName());
+    right_analog_params.Set("axis_x", 0);
+    right_analog_params.Set("axis_y", 1);
+    right_analog_params.Set("threshold", 0.5f);
+    right_analog_params.Set("range", 1.0f);
+    right_analog_params.Set("deadzone", 0.0f);
+    mapping.insert_or_assign(Settings::NativeAnalog::RStick, std::move(right_analog_params));
+    return mapping;
+}
+
+std::string Mouse::GetUIName(const Common::ParamPackage& params) const {
+    if (params.Has("button")) {
+        return fmt::format("Mouse {}", params.Get("button", 0));
+    }
+
+    return "Bad Mouse";
+}
+
+} // namespace InputCommon

src/input_common/drivers/mouse.h

@@ -0,0 +1,73 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include <stop_token>
+#include <thread>
+
+#include "common/vector_math.h"
+#include "input_common/input_engine.h"
+
+namespace InputCommon {
+
+enum class MouseButton {
+    Left,
+    Right,
+    Wheel,
+    Backward,
+    Forward,
+    Task,
+    Extra,
+    Undefined,
+};
+
+/**
+ * A button device factory representing a keyboard. It receives keyboard events and forward them
+ * to all button devices it created.
+ */
+class Mouse final : public InputCommon::InputEngine {
+public:
+    explicit Mouse(const std::string input_engine_);
+
+    /**
+     * Signals that mouse has moved.
+     * @param x the x-coordinate of the cursor
+     * @param y the y-coordinate of the cursor
+     * @param center_x the x-coordinate of the middle of the screen
+     * @param center_y the y-coordinate of the middle of the screen
+     */
+    void MouseMove(int x, int y, f32 touch_x, f32 touch_y, int center_x, int center_y);
+
+    /**
+     * Sets the status of all buttons bound with the key to pressed
+     * @param key_code the code of the key to press
+     */
+    void PressButton(int x, int y, f32 touch_x, f32 touch_y, MouseButton button);
+
+    /**
+     * Sets the status of all buttons bound with the key to released
+     * @param key_code the code of the key to release
+     */
+    void ReleaseButton(MouseButton button);
+
+    void ReleaseAllButtons();
+
+    std::vector<Common::ParamPackage> GetInputDevices() const override;
+    AnalogMapping GetAnalogMappingForDevice(const Common::ParamPackage& params) override;
+    std::string GetUIName(const Common::ParamPackage& params) const override;
+
+private:
+    void UpdateThread(std::stop_token stop_token);
+    void StopPanning();
+
+    Common::Vec2<int> mouse_origin;
+    Common::Vec2<int> last_mouse_position;
+    Common::Vec2<float> last_mouse_change;
+    bool button_pressed;
+    int mouse_panning_timout{};
+    std::jthread update_thread;
+};
+
+} // namespace InputCommon

src/input_common/drivers/sdl_driver.cpp

@@ -0,0 +1,948 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "common/math_util.h"
+#include "common/param_package.h"
+#include "common/settings.h"
+#include "common/thread.h"
+#include "common/vector_math.h"
+#include "input_common/drivers/sdl_driver.h"
+
+namespace InputCommon {
+
+namespace {
+std::string GetGUID(SDL_Joystick* joystick) {
+    const SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
+    char guid_str[33];
+    SDL_JoystickGetGUIDString(guid, guid_str, sizeof(guid_str));
+    return guid_str;
+}
+} // Anonymous namespace
+
+static int SDLEventWatcher(void* user_data, SDL_Event* event) {
+    auto* const sdl_state = static_cast<SDLDriver*>(user_data);
+
+    sdl_state->HandleGameControllerEvent(*event);
+
+    return 0;
+}
+
+class SDLJoystick {
+public:
+    SDLJoystick(std::string guid_, int port_, SDL_Joystick* joystick,
+                SDL_GameController* game_controller)
+        : guid{std::move(guid_)}, port{port_}, sdl_joystick{joystick, &SDL_JoystickClose},
+          sdl_controller{game_controller, &SDL_GameControllerClose} {
+        EnableMotion();
+    }
+
+    void EnableMotion() {
+        if (sdl_controller) {
+            SDL_GameController* controller = sdl_controller.get();
+            if (SDL_GameControllerHasSensor(controller, SDL_SENSOR_ACCEL) && !has_accel) {
+                SDL_GameControllerSetSensorEnabled(controller, SDL_SENSOR_ACCEL, SDL_TRUE);
+                has_accel = true;
+            }
+            if (SDL_GameControllerHasSensor(controller, SDL_SENSOR_GYRO) && !has_gyro) {
+                SDL_GameControllerSetSensorEnabled(controller, SDL_SENSOR_GYRO, SDL_TRUE);
+                has_gyro = true;
+            }
+        }
+    }
+
+    bool HasGyro() const {
+        return has_gyro;
+    }
+
+    bool HasAccel() const {
+        return has_accel;
+    }
+
+    bool UpdateMotion(SDL_ControllerSensorEvent event) {
+        constexpr float gravity_constant = 9.80665f;
+        std::lock_guard lock{mutex};
+        const u64 time_difference = event.timestamp - last_motion_update;
+        last_motion_update = event.timestamp;
+        switch (event.sensor) {
+        case SDL_SENSOR_ACCEL: {
+            motion.accel_x = -event.data[0] / gravity_constant;
+            motion.accel_y = event.data[2] / gravity_constant;
+            motion.accel_z = -event.data[1] / gravity_constant;
+            break;
+        }
+        case SDL_SENSOR_GYRO: {
+            motion.gyro_x = event.data[0] / (Common::PI * 2);
+            motion.gyro_y = -event.data[2] / (Common::PI * 2);
+            motion.gyro_z = event.data[1] / (Common::PI * 2);
+            break;
+        }
+        }
+
+        // Ignore duplicated timestamps
+        if (time_difference == 0) {
+            return false;
+        }
+        motion.delta_timestamp = time_difference * 1000;
+        return true;
+    }
+
+    BasicMotion GetMotion() {
+        return motion;
+    }
+
+    bool RumblePlay(const Common::Input::VibrationStatus vibration) {
+        constexpr u32 rumble_max_duration_ms = 1000;
+        if (sdl_controller) {
+            return SDL_GameControllerRumble(
+                       sdl_controller.get(), static_cast<u16>(vibration.low_amplitude),
+                       static_cast<u16>(vibration.high_amplitude), rumble_max_duration_ms) != -1;
+        } else if (sdl_joystick) {
+            return SDL_JoystickRumble(sdl_joystick.get(), static_cast<u16>(vibration.low_amplitude),
+                                      static_cast<u16>(vibration.high_amplitude),
+                                      rumble_max_duration_ms) != -1;
+        }
+
+        return false;
+    }
+
+    bool HasHDRumble() const {
+        if (sdl_controller) {
+            return (SDL_GameControllerGetType(sdl_controller.get()) ==
+                    SDL_CONTROLLER_TYPE_NINTENDO_SWITCH_PRO);
+        }
+        return false;
+    }
+    /**
+     * The Pad identifier of the joystick
+     */
+    const PadIdentifier GetPadIdentifier() const {
+        return {
+            .guid = Common::UUID{guid},
+            .port = static_cast<std::size_t>(port),
+            .pad = 0,
+        };
+    }
+
+    /**
+     * The guid of the joystick
+     */
+    const std::string& GetGUID() const {
+        return guid;
+    }
+
+    /**
+     * The number of joystick from the same type that were connected before this joystick
+     */
+    int GetPort() const {
+        return port;
+    }
+
+    SDL_Joystick* GetSDLJoystick() const {
+        return sdl_joystick.get();
+    }
+
+    SDL_GameController* GetSDLGameController() const {
+        return sdl_controller.get();
+    }
+
+    void SetSDLJoystick(SDL_Joystick* joystick, SDL_GameController* controller) {
+        sdl_joystick.reset(joystick);
+        sdl_controller.reset(controller);
+    }
+
+    bool IsJoyconLeft() const {
+        const std::string controller_name = GetControllerName();
+        if (std::strstr(controller_name.c_str(), "Joy-Con Left") != nullptr) {
+            return true;
+        }
+        if (std::strstr(controller_name.c_str(), "Joy-Con (L)") != nullptr) {
+            return true;
+        }
+        return false;
+    }
+
+    bool IsJoyconRight() const {
+        const std::string controller_name = GetControllerName();
+        if (std::strstr(controller_name.c_str(), "Joy-Con Right") != nullptr) {
+            return true;
+        }
+        if (std::strstr(controller_name.c_str(), "Joy-Con (R)") != nullptr) {
+            return true;
+        }
+        return false;
+    }
+
+    BatteryLevel GetBatteryLevel() {
+        const auto level = SDL_JoystickCurrentPowerLevel(sdl_joystick.get());
+        switch (level) {
+        case SDL_JOYSTICK_POWER_EMPTY:
+            return BatteryLevel::Empty;
+        case SDL_JOYSTICK_POWER_LOW:
+            return BatteryLevel::Critical;
+        case SDL_JOYSTICK_POWER_MEDIUM:
+            return BatteryLevel::Low;
+        case SDL_JOYSTICK_POWER_FULL:
+            return BatteryLevel::Medium;
+        case SDL_JOYSTICK_POWER_MAX:
+            return BatteryLevel::Full;
+        case SDL_JOYSTICK_POWER_UNKNOWN:
+        case SDL_JOYSTICK_POWER_WIRED:
+        default:
+            return BatteryLevel::Charging;
+        }
+    }
+
+    std::string GetControllerName() const {
+        if (sdl_controller) {
+            switch (SDL_GameControllerGetType(sdl_controller.get())) {
+            case SDL_CONTROLLER_TYPE_XBOX360:
+                return "XBox 360 Controller";
+            case SDL_CONTROLLER_TYPE_XBOXONE:
+                return "XBox One Controller";
+            default:
+                break;
+            }
+            const auto name = SDL_GameControllerName(sdl_controller.get());
+            if (name) {
+                return name;
+            }
+        }
+
+        if (sdl_joystick) {
+            const auto name = SDL_JoystickName(sdl_joystick.get());
+            if (name) {
+                return name;
+            }
+        }
+
+        return "Unknown";
+    }
+
+    bool IsYAxis(u8 index) {
+        if (!sdl_controller) {
+            return false;
+        }
+
+        const auto& binding_left_y =
+            SDL_GameControllerGetBindForAxis(sdl_controller.get(), SDL_CONTROLLER_AXIS_LEFTY);
+        const auto& binding_right_y =
+            SDL_GameControllerGetBindForAxis(sdl_controller.get(), SDL_CONTROLLER_AXIS_RIGHTY);
+        if (index == binding_left_y.value.axis) {
+            return true;
+        }
+        if (index == binding_right_y.value.axis) {
+            return true;
+        }
+        return false;
+    }
+
+private:
+    std::string guid;
+    int port;
+    std::unique_ptr<SDL_Joystick, decltype(&SDL_JoystickClose)> sdl_joystick;
+    std::unique_ptr<SDL_GameController, decltype(&SDL_GameControllerClose)> sdl_controller;
+    mutable std::mutex mutex;
+
+    u64 last_motion_update{};
+    bool has_gyro{false};
+    bool has_accel{false};
+    BasicMotion motion;
+};
+
+std::shared_ptr<SDLJoystick> SDLDriver::GetSDLJoystickByGUID(const std::string& guid, int port) {
+    std::lock_guard lock{joystick_map_mutex};
+    const auto it = joystick_map.find(guid);
+
+    if (it != joystick_map.end()) {
+        while (it->second.size() <= static_cast<std::size_t>(port)) {
+            auto joystick = std::make_shared<SDLJoystick>(guid, static_cast<int>(it->second.size()),
+                                                          nullptr, nullptr);
+            it->second.emplace_back(std::move(joystick));
+        }
+
+        return it->second[static_cast<std::size_t>(port)];
+    }
+
+    auto joystick = std::make_shared<SDLJoystick>(guid, 0, nullptr, nullptr);
+
+    return joystick_map[guid].emplace_back(std::move(joystick));
+}
+
+std::shared_ptr<SDLJoystick> SDLDriver::GetSDLJoystickBySDLID(SDL_JoystickID sdl_id) {
+    auto sdl_joystick = SDL_JoystickFromInstanceID(sdl_id);
+    const std::string guid = GetGUID(sdl_joystick);
+
+    std::lock_guard lock{joystick_map_mutex};
+    const auto map_it = joystick_map.find(guid);
+
+    if (map_it == joystick_map.end()) {
+        return nullptr;
+    }
+
+    const auto vec_it = std::find_if(map_it->second.begin(), map_it->second.end(),
+                                     [&sdl_joystick](const auto& joystick) {
+                                         return joystick->GetSDLJoystick() == sdl_joystick;
+                                     });
+
+    if (vec_it == map_it->second.end()) {
+        return nullptr;
+    }
+
+    return *vec_it;
+}
+
+void SDLDriver::InitJoystick(int joystick_index) {
+    SDL_Joystick* sdl_joystick = SDL_JoystickOpen(joystick_index);
+    SDL_GameController* sdl_gamecontroller = nullptr;
+
+    if (SDL_IsGameController(joystick_index)) {
+        sdl_gamecontroller = SDL_GameControllerOpen(joystick_index);
+    }
+
+    if (!sdl_joystick) {
+        LOG_ERROR(Input, "Failed to open joystick {}", joystick_index);
+        return;
+    }
+
+    const std::string guid = GetGUID(sdl_joystick);
+
+    std::lock_guard lock{joystick_map_mutex};
+    if (joystick_map.find(guid) == joystick_map.end()) {
+        auto joystick = std::make_shared<SDLJoystick>(guid, 0, sdl_joystick, sdl_gamecontroller);
+        PreSetController(joystick->GetPadIdentifier());
+        SetBattery(joystick->GetPadIdentifier(), joystick->GetBatteryLevel());
+        joystick_map[guid].emplace_back(std::move(joystick));
+        return;
+    }
+
+    auto& joystick_guid_list = joystick_map[guid];
+    const auto joystick_it =
+        std::find_if(joystick_guid_list.begin(), joystick_guid_list.end(),
+                     [](const auto& joystick) { return !joystick->GetSDLJoystick(); });
+
+    if (joystick_it != joystick_guid_list.end()) {
+        (*joystick_it)->SetSDLJoystick(sdl_joystick, sdl_gamecontroller);
+        return;
+    }
+
+    const int port = static_cast<int>(joystick_guid_list.size());
+    auto joystick = std::make_shared<SDLJoystick>(guid, port, sdl_joystick, sdl_gamecontroller);
+    PreSetController(joystick->GetPadIdentifier());
+    SetBattery(joystick->GetPadIdentifier(), joystick->GetBatteryLevel());
+    joystick_guid_list.emplace_back(std::move(joystick));
+}
+
+void SDLDriver::CloseJoystick(SDL_Joystick* sdl_joystick) {
+    const std::string guid = GetGUID(sdl_joystick);
+
+    std::lock_guard lock{joystick_map_mutex};
+    // This call to guid is safe since the joystick is guaranteed to be in the map
+    const auto& joystick_guid_list = joystick_map[guid];
+    const auto joystick_it = std::find_if(joystick_guid_list.begin(), joystick_guid_list.end(),
+                                          [&sdl_joystick](const auto& joystick) {
+                                              return joystick->GetSDLJoystick() == sdl_joystick;
+                                          });
+
+    if (joystick_it != joystick_guid_list.end()) {
+        (*joystick_it)->SetSDLJoystick(nullptr, nullptr);
+    }
+}
+
+void SDLDriver::HandleGameControllerEvent(const SDL_Event& event) {
+    switch (event.type) {
+    case SDL_JOYBUTTONUP: {
+        if (const auto joystick = GetSDLJoystickBySDLID(event.jbutton.which)) {
+            const PadIdentifier identifier = joystick->GetPadIdentifier();
+            SetButton(identifier, event.jbutton.button, false);
+        }
+        break;
+    }
+    case SDL_JOYBUTTONDOWN: {
+        if (const auto joystick = GetSDLJoystickBySDLID(event.jbutton.which)) {
+            const PadIdentifier identifier = joystick->GetPadIdentifier();
+            SetButton(identifier, event.jbutton.button, true);
+        }
+        break;
+    }
+    case SDL_JOYHATMOTION: {
+        if (const auto joystick = GetSDLJoystickBySDLID(event.jhat.which)) {
+            const PadIdentifier identifier = joystick->GetPadIdentifier();
+            SetHatButton(identifier, event.jhat.hat, event.jhat.value);
+        }
+        break;
+    }
+    case SDL_JOYAXISMOTION: {
+        if (const auto joystick = GetSDLJoystickBySDLID(event.jaxis.which)) {
+            const PadIdentifier identifier = joystick->GetPadIdentifier();
+            // Vertical axis is inverted on nintendo compared to SDL
+            if (joystick->IsYAxis(event.jaxis.axis)) {
+                SetAxis(identifier, event.jaxis.axis, -event.jaxis.value / 32767.0f);
+                break;
+            }
+            SetAxis(identifier, event.jaxis.axis, event.jaxis.value / 32767.0f);
+        }
+        break;
+    }
+    case SDL_CONTROLLERSENSORUPDATE: {
+        if (auto joystick = GetSDLJoystickBySDLID(event.csensor.which)) {
+            if (joystick->UpdateMotion(event.csensor)) {
+                const PadIdentifier identifier = joystick->GetPadIdentifier();
+                SetMotion(identifier, 0, joystick->GetMotion());
+            };
+        }
+        break;
+    }
+    case SDL_JOYDEVICEREMOVED:
+        LOG_DEBUG(Input, "Controller removed with Instance_ID {}", event.jdevice.which);
+        CloseJoystick(SDL_JoystickFromInstanceID(event.jdevice.which));
+        break;
+    case SDL_JOYDEVICEADDED:
+        LOG_DEBUG(Input, "Controller connected with device index {}", event.jdevice.which);
+        InitJoystick(event.jdevice.which);
+        break;
+    }
+}
+
+void SDLDriver::CloseJoysticks() {
+    std::lock_guard lock{joystick_map_mutex};
+    joystick_map.clear();
+}
+
+SDLDriver::SDLDriver(const std::string& input_engine_) : InputEngine(input_engine_) {
+    Common::SetCurrentThreadName("yuzu:input:SDL");
+
+    if (!Settings::values.enable_raw_input) {
+        // Disable raw input. When enabled this setting causes SDL to die when a web applet opens
+        SDL_SetHint(SDL_HINT_JOYSTICK_RAWINPUT, "0");
+    }
+
+    // Prevent SDL from adding undesired axis
+    SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, "0");
+
+    // Enable HIDAPI rumble. This prevents SDL from disabling motion on PS4 and PS5 controllers
+    SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS4_RUMBLE, "1");
+    SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS5_RUMBLE, "1");
+    SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
+
+    // Use hidapi driver for joycons. This will allow joycons to be detected as a GameController and
+    // not a generic one
+    SDL_SetHint("SDL_JOYSTICK_HIDAPI_JOY_CONS", "1");
+
+    // Turn off Pro controller home led
+    SDL_SetHint("SDL_JOYSTICK_HIDAPI_SWITCH_HOME_LED", "0");
+
+    // If the frontend is going to manage the event loop, then we don't start one here
+    start_thread = SDL_WasInit(SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER) == 0;
+    if (start_thread && SDL_Init(SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER) < 0) {
+        LOG_CRITICAL(Input, "SDL_Init failed with: {}", SDL_GetError());
+        return;
+    }
+
+    SDL_AddEventWatch(&SDLEventWatcher, this);
+
+    initialized = true;
+    if (start_thread) {
+        poll_thread = std::thread([this] {
+            using namespace std::chrono_literals;
+            while (initialized) {
+                SDL_PumpEvents();
+                std::this_thread::sleep_for(1ms);
+            }
+        });
+    }
+    // Because the events for joystick connection happens before we have our event watcher added, we
+    // can just open all the joysticks right here
+    for (int i = 0; i < SDL_NumJoysticks(); ++i) {
+        InitJoystick(i);
+    }
+}
+
+SDLDriver::~SDLDriver() {
+    CloseJoysticks();
+    SDL_DelEventWatch(&SDLEventWatcher, this);
+
+    initialized = false;
+    if (start_thread) {
+        poll_thread.join();
+        SDL_QuitSubSystem(SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER);
+    }
+}
+
+std::vector<Common::ParamPackage> SDLDriver::GetInputDevices() const {
+    std::vector<Common::ParamPackage> devices;
+    std::unordered_map<int, std::shared_ptr<SDLJoystick>> joycon_pairs;
+    for (const auto& [key, value] : joystick_map) {
+        for (const auto& joystick : value) {
+            if (!joystick->GetSDLJoystick()) {
+                continue;
+            }
+            const std::string name =
+                fmt::format("{} {}", joystick->GetControllerName(), joystick->GetPort());
+            devices.emplace_back(Common::ParamPackage{
+                {"engine", GetEngineName()},
+                {"display", std::move(name)},
+                {"guid", joystick->GetGUID()},
+                {"port", std::to_string(joystick->GetPort())},
+            });
+            if (joystick->IsJoyconLeft()) {
+                joycon_pairs.insert_or_assign(joystick->GetPort(), joystick);
+            }
+        }
+    }
+
+    // Add dual controllers
+    for (const auto& [key, value] : joystick_map) {
+        for (const auto& joystick : value) {
+            if (joystick->IsJoyconRight()) {
+                if (!joycon_pairs.contains(joystick->GetPort())) {
+                    continue;
+                }
+                const auto joystick2 = joycon_pairs.at(joystick->GetPort());
+
+                const std::string name =
+                    fmt::format("{} {}", "Nintendo Dual Joy-Con", joystick->GetPort());
+                devices.emplace_back(Common::ParamPackage{
+                    {"engine", GetEngineName()},
+                    {"display", std::move(name)},
+                    {"guid", joystick->GetGUID()},
+                    {"guid2", joystick2->GetGUID()},
+                    {"port", std::to_string(joystick->GetPort())},
+                });
+            }
+        }
+    }
+    return devices;
+}
+Common::Input::VibrationError SDLDriver::SetRumble(const PadIdentifier& identifier,
+                                                   const Common::Input::VibrationStatus vibration) {
+    const auto joystick =
+        GetSDLJoystickByGUID(identifier.guid.Format(), static_cast<int>(identifier.port));
+    const auto process_amplitude_exp = [](f32 amplitude, f32 factor) {
+        return (amplitude + std::pow(amplitude, factor)) * 0.5f * 0xFFFF;
+    };
+
+    // Default exponential curve for rumble
+    f32 factor = 0.35f;
+
+    // If vibration is set as a linear output use a flatter value
+    if (vibration.type == Common::Input::VibrationAmplificationType::Linear) {
+        factor = 0.5f;
+    }
+
+    // Amplitude for HD rumble needs no modification
+    if (joystick->HasHDRumble()) {
+        factor = 1.0f;
+    }
+
+    const Common::Input::VibrationStatus new_vibration{
+        .low_amplitude = process_amplitude_exp(vibration.low_amplitude, factor),
+        .low_frequency = vibration.low_frequency,
+        .high_amplitude = process_amplitude_exp(vibration.high_amplitude, factor),
+        .high_frequency = vibration.high_frequency,
+        .type = Common::Input::VibrationAmplificationType::Exponential,
+    };
+
+    if (!joystick->RumblePlay(new_vibration)) {
+        return Common::Input::VibrationError::Unknown;
+    }
+
+    return Common::Input::VibrationError::None;
+}
+Common::ParamPackage SDLDriver::BuildAnalogParamPackageForButton(int port, std::string guid,
+                                                                 s32 axis, float value) const {
+    Common::ParamPackage params{};
+    params.Set("engine", GetEngineName());
+    params.Set("port", port);
+    params.Set("guid", std::move(guid));
+    params.Set("axis", axis);
+    params.Set("threshold", "0.5");
+    params.Set("invert", value < 0 ? "-" : "+");
+    return params;
+}
+
+Common::ParamPackage SDLDriver::BuildButtonParamPackageForButton(int port, std::string guid,
+                                                                 s32 button) const {
+    Common::ParamPackage params{};
+    params.Set("engine", GetEngineName());
+    params.Set("port", port);
+    params.Set("guid", std::move(guid));
+    params.Set("button", button);
+    return params;
+}
+
+Common::ParamPackage SDLDriver::BuildHatParamPackageForButton(int port, std::string guid, s32 hat,
+                                                              u8 value) const {
+    Common::ParamPackage params{};
+    params.Set("engine", GetEngineName());
+    params.Set("port", port);
+    params.Set("guid", std::move(guid));
+    params.Set("hat", hat);
+    params.Set("direction", GetHatButtonName(value));
+    return params;
+}
+
+Common::ParamPackage SDLDriver::BuildMotionParam(int port, std::string guid) const {
+    Common::ParamPackage params{};
+    params.Set("engine", GetEngineName());
+    params.Set("motion", 0);
+    params.Set("port", port);
+    params.Set("guid", std::move(guid));
+    return params;
+}
+
+Common::ParamPackage SDLDriver::BuildParamPackageForBinding(
+    int port, const std::string& guid, const SDL_GameControllerButtonBind& binding) const {
+    switch (binding.bindType) {
+    case SDL_CONTROLLER_BINDTYPE_NONE:
+        break;
+    case SDL_CONTROLLER_BINDTYPE_AXIS:
+        return BuildAnalogParamPackageForButton(port, guid, binding.value.axis);
+    case SDL_CONTROLLER_BINDTYPE_BUTTON:
+        return BuildButtonParamPackageForButton(port, guid, binding.value.button);
+    case SDL_CONTROLLER_BINDTYPE_HAT:
+        return BuildHatParamPackageForButton(port, guid, binding.value.hat.hat,
+                                             static_cast<u8>(binding.value.hat.hat_mask));
+    }
+    return {};
+}
+
+Common::ParamPackage SDLDriver::BuildParamPackageForAnalog(PadIdentifier identifier, int axis_x,
+                                                           int axis_y, float offset_x,
+                                                           float offset_y) const {
+    Common::ParamPackage params;
+    params.Set("engine", GetEngineName());
+    params.Set("port", static_cast<int>(identifier.port));
+    params.Set("guid", identifier.guid.Format());
+    params.Set("axis_x", axis_x);
+    params.Set("axis_y", axis_y);
+    params.Set("offset_x", offset_x);
+    params.Set("offset_y", offset_y);
+    params.Set("invert_x", "+");
+    params.Set("invert_y", "+");
+    return params;
+}
+
+ButtonMapping SDLDriver::GetButtonMappingForDevice(const Common::ParamPackage& params) {
+    if (!params.Has("guid") || !params.Has("port")) {
+        return {};
+    }
+    const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0));
+
+    auto* controller = joystick->GetSDLGameController();
+    if (controller == nullptr) {
+        return {};
+    }
+
+    // This list is missing ZL/ZR since those are not considered buttons in SDL GameController.
+    // We will add those afterwards
+    // This list also excludes Screenshot since theres not really a mapping for that
+    ButtonBindings switch_to_sdl_button;
+
+    if (SDL_GameControllerGetType(controller) == SDL_CONTROLLER_TYPE_NINTENDO_SWITCH_PRO) {
+        switch_to_sdl_button = GetNintendoButtonBinding(joystick);
+    } else {
+        switch_to_sdl_button = GetDefaultButtonBinding();
+    }
+
+    // Add the missing bindings for ZL/ZR
+    static constexpr ZButtonBindings switch_to_sdl_axis{{
+        {Settings::NativeButton::ZL, SDL_CONTROLLER_AXIS_TRIGGERLEFT},
+        {Settings::NativeButton::ZR, SDL_CONTROLLER_AXIS_TRIGGERRIGHT},
+    }};
+
+    // Parameters contain two joysticks return dual
+    if (params.Has("guid2")) {
+        const auto joystick2 = GetSDLJoystickByGUID(params.Get("guid2", ""), params.Get("port", 0));
+
+        if (joystick2->GetSDLGameController() != nullptr) {
+            return GetDualControllerMapping(joystick, joystick2, switch_to_sdl_button,
+                                            switch_to_sdl_axis);
+        }
+    }
+
+    return GetSingleControllerMapping(joystick, switch_to_sdl_button, switch_to_sdl_axis);
+}
+
+ButtonBindings SDLDriver::GetDefaultButtonBinding() const {
+    return {
+        std::pair{Settings::NativeButton::A, SDL_CONTROLLER_BUTTON_B},
+        {Settings::NativeButton::B, SDL_CONTROLLER_BUTTON_A},
+        {Settings::NativeButton::X, SDL_CONTROLLER_BUTTON_Y},
+        {Settings::NativeButton::Y, SDL_CONTROLLER_BUTTON_X},
+        {Settings::NativeButton::LStick, SDL_CONTROLLER_BUTTON_LEFTSTICK},
+        {Settings::NativeButton::RStick, SDL_CONTROLLER_BUTTON_RIGHTSTICK},
+        {Settings::NativeButton::L, SDL_CONTROLLER_BUTTON_LEFTSHOULDER},
+        {Settings::NativeButton::R, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER},
+        {Settings::NativeButton::Plus, SDL_CONTROLLER_BUTTON_START},
+        {Settings::NativeButton::Minus, SDL_CONTROLLER_BUTTON_BACK},
+        {Settings::NativeButton::DLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT},
+        {Settings::NativeButton::DUp, SDL_CONTROLLER_BUTTON_DPAD_UP},
+        {Settings::NativeButton::DRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT},
+        {Settings::NativeButton::DDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN},
+        {Settings::NativeButton::SL, SDL_CONTROLLER_BUTTON_LEFTSHOULDER},
+        {Settings::NativeButton::SR, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER},
+        {Settings::NativeButton::Home, SDL_CONTROLLER_BUTTON_GUIDE},
+    };
+}
+
+ButtonBindings SDLDriver::GetNintendoButtonBinding(
+    const std::shared_ptr<SDLJoystick>& joystick) const {
+    // Default SL/SR mapping for pro controllers
+    auto sl_button = SDL_CONTROLLER_BUTTON_LEFTSHOULDER;
+    auto sr_button = SDL_CONTROLLER_BUTTON_RIGHTSHOULDER;
+
+    if (joystick->IsJoyconLeft()) {
+        sl_button = SDL_CONTROLLER_BUTTON_PADDLE2;
+        sr_button = SDL_CONTROLLER_BUTTON_PADDLE4;
+    }
+    if (joystick->IsJoyconRight()) {
+        sl_button = SDL_CONTROLLER_BUTTON_PADDLE3;
+        sr_button = SDL_CONTROLLER_BUTTON_PADDLE1;
+    }
+
+    return {
+        std::pair{Settings::NativeButton::A, SDL_CONTROLLER_BUTTON_A},
+        {Settings::NativeButton::B, SDL_CONTROLLER_BUTTON_B},
+        {Settings::NativeButton::X, SDL_CONTROLLER_BUTTON_X},
+        {Settings::NativeButton::Y, SDL_CONTROLLER_BUTTON_Y},
+        {Settings::NativeButton::LStick, SDL_CONTROLLER_BUTTON_LEFTSTICK},
+        {Settings::NativeButton::RStick, SDL_CONTROLLER_BUTTON_RIGHTSTICK},
+        {Settings::NativeButton::L, SDL_CONTROLLER_BUTTON_LEFTSHOULDER},
+        {Settings::NativeButton::R, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER},
+        {Settings::NativeButton::Plus, SDL_CONTROLLER_BUTTON_START},
+        {Settings::NativeButton::Minus, SDL_CONTROLLER_BUTTON_BACK},
+        {Settings::NativeButton::DLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT},
+        {Settings::NativeButton::DUp, SDL_CONTROLLER_BUTTON_DPAD_UP},
+        {Settings::NativeButton::DRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT},
+        {Settings::NativeButton::DDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN},
+        {Settings::NativeButton::SL, sl_button},
+        {Settings::NativeButton::SR, sr_button},
+        {Settings::NativeButton::Home, SDL_CONTROLLER_BUTTON_GUIDE},
+    };
+}
+
+ButtonMapping SDLDriver::GetSingleControllerMapping(
+    const std::shared_ptr<SDLJoystick>& joystick, const ButtonBindings& switch_to_sdl_button,
+    const ZButtonBindings& switch_to_sdl_axis) const {
+    ButtonMapping mapping;
+    mapping.reserve(switch_to_sdl_button.size() + switch_to_sdl_axis.size());
+    auto* controller = joystick->GetSDLGameController();
+
+    for (const auto& [switch_button, sdl_button] : switch_to_sdl_button) {
+        const auto& binding = SDL_GameControllerGetBindForButton(controller, sdl_button);
+        mapping.insert_or_assign(
+            switch_button,
+            BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
+    }
+    for (const auto& [switch_button, sdl_axis] : switch_to_sdl_axis) {
+        const auto& binding = SDL_GameControllerGetBindForAxis(controller, sdl_axis);
+        mapping.insert_or_assign(
+            switch_button,
+            BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
+    }
+
+    return mapping;
+}
+
+ButtonMapping SDLDriver::GetDualControllerMapping(const std::shared_ptr<SDLJoystick>& joystick,
+                                                  const std::shared_ptr<SDLJoystick>& joystick2,
+                                                  const ButtonBindings& switch_to_sdl_button,
+                                                  const ZButtonBindings& switch_to_sdl_axis) const {
+    ButtonMapping mapping;
+    mapping.reserve(switch_to_sdl_button.size() + switch_to_sdl_axis.size());
+    auto* controller = joystick->GetSDLGameController();
+    auto* controller2 = joystick2->GetSDLGameController();
+
+    for (const auto& [switch_button, sdl_button] : switch_to_sdl_button) {
+        if (IsButtonOnLeftSide(switch_button)) {
+            const auto& binding = SDL_GameControllerGetBindForButton(controller2, sdl_button);
+            mapping.insert_or_assign(
+                switch_button,
+                BuildParamPackageForBinding(joystick2->GetPort(), joystick2->GetGUID(), binding));
+            continue;
+        }
+        const auto& binding = SDL_GameControllerGetBindForButton(controller, sdl_button);
+        mapping.insert_or_assign(
+            switch_button,
+            BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
+    }
+    for (const auto& [switch_button, sdl_axis] : switch_to_sdl_axis) {
+        if (IsButtonOnLeftSide(switch_button)) {
+            const auto& binding = SDL_GameControllerGetBindForAxis(controller2, sdl_axis);
+            mapping.insert_or_assign(
+                switch_button,
+                BuildParamPackageForBinding(joystick2->GetPort(), joystick2->GetGUID(), binding));
+            continue;
+        }
+        const auto& binding = SDL_GameControllerGetBindForAxis(controller, sdl_axis);
+        mapping.insert_or_assign(
+            switch_button,
+            BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
+    }
+
+    return mapping;
+}
+
+bool SDLDriver::IsButtonOnLeftSide(Settings::NativeButton::Values button) const {
+    switch (button) {
+    case Settings::NativeButton::DDown:
+    case Settings::NativeButton::DLeft:
+    case Settings::NativeButton::DRight:
+    case Settings::NativeButton::DUp:
+    case Settings::NativeButton::L:
+    case Settings::NativeButton::LStick:
+    case Settings::NativeButton::Minus:
+    case Settings::NativeButton::Screenshot:
+    case Settings::NativeButton::ZL:
+        return true;
+    default:
+        return false;
+    }
+}
+
+AnalogMapping SDLDriver::GetAnalogMappingForDevice(const Common::ParamPackage& params) {
+    if (!params.Has("guid") || !params.Has("port")) {
+        return {};
+    }
+    const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0));
+    const auto joystick2 = GetSDLJoystickByGUID(params.Get("guid2", ""), params.Get("port", 0));
+    auto* controller = joystick->GetSDLGameController();
+    if (controller == nullptr) {
+        return {};
+    }
+
+    AnalogMapping mapping = {};
+    const auto& binding_left_x =
+        SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTX);
+    const auto& binding_left_y =
+        SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTY);
+    if (params.Has("guid2")) {
+        const auto identifier = joystick2->GetPadIdentifier();
+        PreSetController(identifier);
+        PreSetAxis(identifier, binding_left_x.value.axis);
+        PreSetAxis(identifier, binding_left_y.value.axis);
+        const auto left_offset_x = -GetAxis(identifier, binding_left_x.value.axis);
+        const auto left_offset_y = -GetAxis(identifier, binding_left_y.value.axis);
+        mapping.insert_or_assign(Settings::NativeAnalog::LStick,
+                                 BuildParamPackageForAnalog(identifier, binding_left_x.value.axis,
+                                                            binding_left_y.value.axis,
+                                                            left_offset_x, left_offset_y));
+    } else {
+        const auto identifier = joystick->GetPadIdentifier();
+        PreSetController(identifier);
+        PreSetAxis(identifier, binding_left_x.value.axis);
+        PreSetAxis(identifier, binding_left_y.value.axis);
+        const auto left_offset_x = -GetAxis(identifier, binding_left_x.value.axis);
+        const auto left_offset_y = -GetAxis(identifier, binding_left_y.value.axis);
+        mapping.insert_or_assign(Settings::NativeAnalog::LStick,
+                                 BuildParamPackageForAnalog(identifier, binding_left_x.value.axis,
+                                                            binding_left_y.value.axis,
+                                                            left_offset_x, left_offset_y));
+    }
+    const auto& binding_right_x =
+        SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTX);
+    const auto& binding_right_y =
+        SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTY);
+    const auto identifier = joystick->GetPadIdentifier();
+    PreSetController(identifier);
+    PreSetAxis(identifier, binding_right_x.value.axis);
+    PreSetAxis(identifier, binding_right_y.value.axis);
+    const auto right_offset_x = -GetAxis(identifier, binding_right_x.value.axis);
+    const auto right_offset_y = -GetAxis(identifier, binding_right_y.value.axis);
+    mapping.insert_or_assign(Settings::NativeAnalog::RStick,
+                             BuildParamPackageForAnalog(identifier, binding_right_x.value.axis,
+                                                        binding_right_y.value.axis, right_offset_x,
+                                                        right_offset_y));
+    return mapping;
+}
+
+MotionMapping SDLDriver::GetMotionMappingForDevice(const Common::ParamPackage& params) {
+    if (!params.Has("guid") || !params.Has("port")) {
+        return {};
+    }
+    const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0));
+    const auto joystick2 = GetSDLJoystickByGUID(params.Get("guid2", ""), params.Get("port", 0));
+    auto* controller = joystick->GetSDLGameController();
+    if (controller == nullptr) {
+        return {};
+    }
+
+    MotionMapping mapping = {};
+    joystick->EnableMotion();
+
+    if (joystick->HasGyro() || joystick->HasAccel()) {
+        mapping.insert_or_assign(Settings::NativeMotion::MotionRight,
+                                 BuildMotionParam(joystick->GetPort(), joystick->GetGUID()));
+    }
+    if (params.Has("guid2")) {
+        joystick2->EnableMotion();
+        if (joystick2->HasGyro() || joystick2->HasAccel()) {
+            mapping.insert_or_assign(Settings::NativeMotion::MotionLeft,
+                                     BuildMotionParam(joystick2->GetPort(), joystick2->GetGUID()));
+        }
+    } else {
+        if (joystick->HasGyro() || joystick->HasAccel()) {
+            mapping.insert_or_assign(Settings::NativeMotion::MotionLeft,
+                                     BuildMotionParam(joystick->GetPort(), joystick->GetGUID()));
+        }
+    }
+
+    return mapping;
+}
+
+std::string SDLDriver::GetUIName(const Common::ParamPackage& params) const {
+    if (params.Has("button")) {
+        // TODO(German77): Find how to substitue the values for real button names
+        return fmt::format("Button {}", params.Get("button", 0));
+    }
+    if (params.Has("hat")) {
+        return fmt::format("Hat {}", params.Get("direction", ""));
+    }
+    if (params.Has("axis")) {
+        return fmt::format("Axis {}", params.Get("axis", ""));
+    }
+    if (params.Has("axis_x") && params.Has("axis_y") && params.Has("axis_z")) {
+        return fmt::format("Axis {},{},{}", params.Get("axis_x", ""), params.Get("axis_y", ""),
+                           params.Get("axis_z", ""));
+    }
+    if (params.Has("motion")) {
+        return "SDL motion";
+    }
+
+    return "Bad SDL";
+}
+
+std::string SDLDriver::GetHatButtonName(u8 direction_value) const {
+    switch (direction_value) {
+    case SDL_HAT_UP:
+        return "up";
+    case SDL_HAT_DOWN:
+        return "down";
+    case SDL_HAT_LEFT:
+        return "left";
+    case SDL_HAT_RIGHT:
+        return "right";
+    default:
+        return {};
+    }
+}
+
+u8 SDLDriver::GetHatButtonId(const std::string direction_name) const {
+    Uint8 direction;
+    if (direction_name == "up") {
+        direction = SDL_HAT_UP;
+    } else if (direction_name == "down") {
+        direction = SDL_HAT_DOWN;
+    } else if (direction_name == "left") {
+        direction = SDL_HAT_LEFT;
+    } else if (direction_name == "right") {
+        direction = SDL_HAT_RIGHT;
+    } else {
+        direction = 0;
+    }
+    return direction;
+}
+
+} // namespace InputCommon

src/input_common/drivers/sdl_driver.h

@@ -0,0 +1,117 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <atomic>
+#include <mutex>
+#include <thread>
+#include <unordered_map>
+
+#include <SDL.h>
+
+#include "common/common_types.h"
+#include "input_common/input_engine.h"
+
+union SDL_Event;
+using SDL_GameController = struct _SDL_GameController;
+using SDL_Joystick = struct _SDL_Joystick;
+using SDL_JoystickID = s32;
+
+using ButtonBindings =
+    std::array<std::pair<Settings::NativeButton::Values, SDL_GameControllerButton>, 17>;
+using ZButtonBindings =
+    std::array<std::pair<Settings::NativeButton::Values, SDL_GameControllerAxis>, 2>;
+
+namespace InputCommon {
+
+class SDLJoystick;
+
+class SDLDriver : public InputCommon::InputEngine {
+public:
+    /// Initializes and registers SDL device factories
+    SDLDriver(const std::string& input_engine_);
+
+    /// Unregisters SDL device factories and shut them down.
+    ~SDLDriver() override;
+
+    /// Handle SDL_Events for joysticks from SDL_PollEvent
+    void HandleGameControllerEvent(const SDL_Event& event);
+
+    /// Get the nth joystick with the corresponding GUID
+    std::shared_ptr<SDLJoystick> GetSDLJoystickBySDLID(SDL_JoystickID sdl_id);
+
+    /**
+     * Check how many identical joysticks (by guid) were connected before the one with sdl_id and so
+     * tie it to a SDLJoystick with the same guid and that port
+     */
+    std::shared_ptr<SDLJoystick> GetSDLJoystickByGUID(const std::string& guid, int port);
+
+    std::vector<Common::ParamPackage> GetInputDevices() const override;
+
+    ButtonMapping GetButtonMappingForDevice(const Common::ParamPackage& params) override;
+    AnalogMapping GetAnalogMappingForDevice(const Common::ParamPackage& params) override;
+    MotionMapping GetMotionMappingForDevice(const Common::ParamPackage& params) override;
+    std::string GetUIName(const Common::ParamPackage& params) const override;
+
+    std::string GetHatButtonName(u8 direction_value) const override;
+    u8 GetHatButtonId(const std::string direction_name) const override;
+
+    Common::Input::VibrationError SetRumble(
+        const PadIdentifier& identifier, const Common::Input::VibrationStatus vibration) override;
+
+private:
+    void InitJoystick(int joystick_index);
+    void CloseJoystick(SDL_Joystick* sdl_joystick);
+
+    /// Needs to be called before SDL_QuitSubSystem.
+    void CloseJoysticks();
+
+    Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, s32 axis,
+                                                          float value = 0.1f) const;
+    Common::ParamPackage BuildButtonParamPackageForButton(int port, std::string guid,
+                                                          s32 button) const;
+
+    Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, s32 hat,
+                                                       u8 value) const;
+
+    Common::ParamPackage BuildMotionParam(int port, std::string guid) const;
+
+    Common::ParamPackage BuildParamPackageForBinding(
+        int port, const std::string& guid, const SDL_GameControllerButtonBind& binding) const;
+
+    Common::ParamPackage BuildParamPackageForAnalog(PadIdentifier identifier, int axis_x,
+                                                    int axis_y, float offset_x,
+                                                    float offset_y) const;
+
+    /// Returns the default button bindings list for generic controllers
+    ButtonBindings GetDefaultButtonBinding() const;
+
+    /// Returns the default button bindings list for nintendo controllers
+    ButtonBindings GetNintendoButtonBinding(const std::shared_ptr<SDLJoystick>& joystick) const;
+
+    /// Returns the button mappings from a single controller
+    ButtonMapping GetSingleControllerMapping(const std::shared_ptr<SDLJoystick>& joystick,
+                                             const ButtonBindings& switch_to_sdl_button,
+                                             const ZButtonBindings& switch_to_sdl_axis) const;
+
+    /// Returns the button mappings from two different controllers
+    ButtonMapping GetDualControllerMapping(const std::shared_ptr<SDLJoystick>& joystick,
+                                           const std::shared_ptr<SDLJoystick>& joystick2,
+                                           const ButtonBindings& switch_to_sdl_button,
+                                           const ZButtonBindings& switch_to_sdl_axis) const;
+
+    /// Returns true if the button is on the left joycon
+    bool IsButtonOnLeftSide(Settings::NativeButton::Values button) const;
+
+    /// Map of GUID of a list of corresponding virtual Joysticks
+    std::unordered_map<std::string, std::vector<std::shared_ptr<SDLJoystick>>> joystick_map;
+    std::mutex joystick_map_mutex;
+
+    bool start_thread = false;
+    std::atomic<bool> initialized = false;
+
+    std::thread poll_thread;
+};
+} // namespace InputCommon

src/input_common/drivers/tas_input.cpp

@@ -0,0 +1,321 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include <cstring>
+#include <regex>
+#include <fmt/format.h>
+
+#include "common/fs/file.h"
+#include "common/fs/fs_types.h"
+#include "common/fs/path_util.h"
+#include "common/logging/log.h"
+#include "common/settings.h"
+#include "input_common/drivers/tas_input.h"
+
+namespace InputCommon::TasInput {
+
+enum TasAxes : u8 {
+    StickX,
+    StickY,
+    SubstickX,
+    SubstickY,
+    Undefined,
+};
+
+// Supported keywords and buttons from a TAS file
+constexpr std::array<std::pair<std::string_view, TasButton>, 20> text_to_tas_button = {
+    std::pair{"KEY_A", TasButton::BUTTON_A},
+    {"KEY_B", TasButton::BUTTON_B},
+    {"KEY_X", TasButton::BUTTON_X},
+    {"KEY_Y", TasButton::BUTTON_Y},
+    {"KEY_LSTICK", TasButton::STICK_L},
+    {"KEY_RSTICK", TasButton::STICK_R},
+    {"KEY_L", TasButton::TRIGGER_L},
+    {"KEY_R", TasButton::TRIGGER_R},
+    {"KEY_PLUS", TasButton::BUTTON_PLUS},
+    {"KEY_MINUS", TasButton::BUTTON_MINUS},
+    {"KEY_DLEFT", TasButton::BUTTON_LEFT},
+    {"KEY_DUP", TasButton::BUTTON_UP},
+    {"KEY_DRIGHT", TasButton::BUTTON_RIGHT},
+    {"KEY_DDOWN", TasButton::BUTTON_DOWN},
+    {"KEY_SL", TasButton::BUTTON_SL},
+    {"KEY_SR", TasButton::BUTTON_SR},
+    {"KEY_CAPTURE", TasButton::BUTTON_CAPTURE},
+    {"KEY_HOME", TasButton::BUTTON_HOME},
+    {"KEY_ZL", TasButton::TRIGGER_ZL},
+    {"KEY_ZR", TasButton::TRIGGER_ZR},
+};
+
+Tas::Tas(const std::string input_engine_) : InputCommon::InputEngine(input_engine_) {
+    for (size_t player_index = 0; player_index < PLAYER_NUMBER; player_index++) {
+        PadIdentifier identifier{
+            .guid = Common::UUID{},
+            .port = player_index,
+            .pad = 0,
+        };
+        PreSetController(identifier);
+    }
+    ClearInput();
+    if (!Settings::values.tas_enable) {
+        needs_reset = true;
+        return;
+    }
+    LoadTasFiles();
+}
+
+Tas::~Tas() {
+    Stop();
+};
+
+void Tas::LoadTasFiles() {
+    script_length = 0;
+    for (size_t i = 0; i < commands.size(); i++) {
+        LoadTasFile(i);
+        if (commands[i].size() > script_length) {
+            script_length = commands[i].size();
+        }
+    }
+}
+
+void Tas::LoadTasFile(size_t player_index) {
+    if (!commands[player_index].empty()) {
+        commands[player_index].clear();
+    }
+    std::string file =
+        Common::FS::ReadStringFromFile(Common::FS::GetYuzuPath(Common::FS::YuzuPath::TASDir) /
+                                           fmt::format("script0-{}.txt", player_index + 1),
+                                       Common::FS::FileType::BinaryFile);
+    std::stringstream command_line(file);
+    std::string line;
+    int frame_no = 0;
+    while (std::getline(command_line, line, '\n')) {
+        if (line.empty()) {
+            continue;
+        }
+        std::smatch m;
+
+        std::stringstream linestream(line);
+        std::string segment;
+        std::vector<std::string> seglist;
+
+        while (std::getline(linestream, segment, ' ')) {
+            seglist.push_back(segment);
+        }
+
+        if (seglist.size() < 4) {
+            continue;
+        }
+
+        while (frame_no < std::stoi(seglist.at(0))) {
+            commands[player_index].push_back({});
+            frame_no++;
+        }
+
+        TASCommand command = {
+            .buttons = ReadCommandButtons(seglist.at(1)),
+            .l_axis = ReadCommandAxis(seglist.at(2)),
+            .r_axis = ReadCommandAxis(seglist.at(3)),
+        };
+        commands[player_index].push_back(command);
+        frame_no++;
+    }
+    LOG_INFO(Input, "TAS file loaded! {} frames", frame_no);
+}
+
+void Tas::WriteTasFile(std::u8string file_name) {
+    std::string output_text;
+    for (size_t frame = 0; frame < record_commands.size(); frame++) {
+        const TASCommand& line = record_commands[frame];
+        output_text += fmt::format("{} {} {} {}\n", frame, WriteCommandButtons(line.buttons),
+                                   WriteCommandAxis(line.l_axis), WriteCommandAxis(line.r_axis));
+    }
+    const auto bytes_written = Common::FS::WriteStringToFile(
+        Common::FS::GetYuzuPath(Common::FS::YuzuPath::TASDir) / file_name,
+        Common::FS::FileType::TextFile, output_text);
+    if (bytes_written == output_text.size()) {
+        LOG_INFO(Input, "TAS file written to file!");
+    } else {
+        LOG_ERROR(Input, "Writing the TAS-file has failed! {} / {} bytes written", bytes_written,
+                  output_text.size());
+    }
+}
+
+void Tas::RecordInput(u64 buttons, TasAnalog left_axis, TasAnalog right_axis) {
+    last_input = {
+        .buttons = buttons,
+        .l_axis = FlipAxisY(left_axis),
+        .r_axis = FlipAxisY(right_axis),
+    };
+}
+
+TasAnalog Tas::FlipAxisY(TasAnalog old) {
+    return {
+        .x = old.x,
+        .y = -old.y,
+    };
+}
+
+std::tuple<TasState, size_t, size_t> Tas::GetStatus() const {
+    TasState state;
+    if (is_recording) {
+        return {TasState::Recording, 0, record_commands.size()};
+    }
+
+    if (is_running) {
+        state = TasState::Running;
+    } else {
+        state = TasState::Stopped;
+    }
+
+    return {state, current_command, script_length};
+}
+
+void Tas::UpdateThread() {
+    if (!Settings::values.tas_enable) {
+        if (is_running) {
+            Stop();
+        }
+        return;
+    }
+
+    if (is_recording) {
+        record_commands.push_back(last_input);
+    }
+    if (needs_reset) {
+        current_command = 0;
+        needs_reset = false;
+        LoadTasFiles();
+        LOG_DEBUG(Input, "tas_reset done");
+    }
+
+    if (!is_running) {
+        ClearInput();
+        return;
+    }
+    if (current_command < script_length) {
+        LOG_DEBUG(Input, "Playing TAS {}/{}", current_command, script_length);
+        const size_t frame = current_command++;
+        for (size_t player_index = 0; player_index < commands.size(); player_index++) {
+            TASCommand command{};
+            if (frame < commands[player_index].size()) {
+                command = commands[player_index][frame];
+            }
+
+            PadIdentifier identifier{
+                .guid = Common::UUID{},
+                .port = player_index,
+                .pad = 0,
+            };
+            for (std::size_t i = 0; i < sizeof(command.buttons) * 8; ++i) {
+                const bool button_status = (command.buttons & (1LLU << i)) != 0;
+                const int button = static_cast<int>(i);
+                SetButton(identifier, button, button_status);
+            }
+            SetAxis(identifier, TasAxes::StickX, command.l_axis.x);
+            SetAxis(identifier, TasAxes::StickY, command.l_axis.y);
+            SetAxis(identifier, TasAxes::SubstickX, command.r_axis.x);
+            SetAxis(identifier, TasAxes::SubstickY, command.r_axis.y);
+        }
+    } else {
+        is_running = Settings::values.tas_loop.GetValue();
+        current_command = 0;
+        ClearInput();
+    }
+}
+
+void Tas::ClearInput() {
+    ResetButtonState();
+    ResetAnalogState();
+}
+
+TasAnalog Tas::ReadCommandAxis(const std::string& line) const {
+    std::stringstream linestream(line);
+    std::string segment;
+    std::vector<std::string> seglist;
+
+    while (std::getline(linestream, segment, ';')) {
+        seglist.push_back(segment);
+    }
+
+    const float x = std::stof(seglist.at(0)) / 32767.0f;
+    const float y = std::stof(seglist.at(1)) / 32767.0f;
+
+    return {x, y};
+}
+
+u64 Tas::ReadCommandButtons(const std::string& data) const {
+    std::stringstream button_text(data);
+    std::string line;
+    u64 buttons = 0;
+    while (std::getline(button_text, line, ';')) {
+        for (auto [text, tas_button] : text_to_tas_button) {
+            if (text == line) {
+                buttons |= static_cast<u64>(tas_button);
+                break;
+            }
+        }
+    }
+    return buttons;
+}
+
+std::string Tas::WriteCommandButtons(u64 buttons) const {
+    std::string returns = "";
+    for (auto [text_button, tas_button] : text_to_tas_button) {
+        if ((buttons & static_cast<u64>(tas_button)) != 0) {
+            returns += fmt::format("{};", text_button);
+        }
+    }
+    return returns.empty() ? "NONE" : returns;
+}
+
+std::string Tas::WriteCommandAxis(TasAnalog analog) const {
+    return fmt::format("{};{}", analog.x * 32767, analog.y * 32767);
+}
+
+void Tas::StartStop() {
+    if (!Settings::values.tas_enable) {
+        return;
+    }
+    if (is_running) {
+        Stop();
+    } else {
+        is_running = true;
+    }
+}
+
+void Tas::Stop() {
+    is_running = false;
+}
+
+void Tas::Reset() {
+    if (!Settings::values.tas_enable) {
+        return;
+    }
+    needs_reset = true;
+}
+
+bool Tas::Record() {
+    if (!Settings::values.tas_enable) {
+        return true;
+    }
+    is_recording = !is_recording;
+    return is_recording;
+}
+
+void Tas::SaveRecording(bool overwrite_file) {
+    if (is_recording) {
+        return;
+    }
+    if (record_commands.empty()) {
+        return;
+    }
+    WriteTasFile(u8"record.txt");
+    if (overwrite_file) {
+        WriteTasFile(u8"script0-1.txt");
+    }
+    needs_reset = true;
+    record_commands.clear();
+}
+
+} // namespace InputCommon::TasInput

src/input_common/drivers/tas_input.h

@@ -0,0 +1,199 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+#include "common/settings_input.h"
+#include "input_common/input_engine.h"
+#include "input_common/main.h"
+
+/*
+To play back TAS scripts on Yuzu, select the folder with scripts in the configuration menu below
+Tools -> Configure TAS. The file itself has normal text format and has to be called script0-1.txt
+for controller 1, script0-2.txt for controller 2 and so forth (with max. 8 players).
+
+A script file has the same format as TAS-nx uses, so final files will look like this:
+
+1 KEY_B 0;0 0;0
+6 KEY_ZL 0;0 0;0
+41 KEY_ZL;KEY_Y 0;0 0;0
+43 KEY_X;KEY_A 32767;0 0;0
+44 KEY_A 32767;0 0;0
+45 KEY_A 32767;0 0;0
+46 KEY_A 32767;0 0;0
+47 KEY_A 32767;0 0;0
+
+After placing the file at the correct location, it can be read into Yuzu with the (default) hotkey
+CTRL+F6 (refresh). In the bottom left corner, it will display the amount of frames the script file
+has. Playback can be started or stopped using CTRL+F5.
+
+However, for playback to actually work, the correct input device has to be selected: In the Controls
+menu, select TAS from the device list for the controller that the script should be played on.
+
+Recording a new script file is really simple: Just make sure that the proper device (not TAS) is
+connected on P1, and press CTRL+F7 to start recording. When done, just press the same keystroke
+again (CTRL+F7). The new script will be saved at the location previously selected, as the filename
+record.txt.
+
+For debugging purposes, the common controller debugger can be used (View -> Debugging -> Controller
+P1).
+*/
+
+namespace InputCommon::TasInput {
+
+constexpr size_t PLAYER_NUMBER = 10;
+
+enum class TasButton : u64 {
+    BUTTON_A = 1U << 0,
+    BUTTON_B = 1U << 1,
+    BUTTON_X = 1U << 2,
+    BUTTON_Y = 1U << 3,
+    STICK_L = 1U << 4,
+    STICK_R = 1U << 5,
+    TRIGGER_L = 1U << 6,
+    TRIGGER_R = 1U << 7,
+    TRIGGER_ZL = 1U << 8,
+    TRIGGER_ZR = 1U << 9,
+    BUTTON_PLUS = 1U << 10,
+    BUTTON_MINUS = 1U << 11,
+    BUTTON_LEFT = 1U << 12,
+    BUTTON_UP = 1U << 13,
+    BUTTON_RIGHT = 1U << 14,
+    BUTTON_DOWN = 1U << 15,
+    BUTTON_SL = 1U << 16,
+    BUTTON_SR = 1U << 17,
+    BUTTON_HOME = 1U << 18,
+    BUTTON_CAPTURE = 1U << 19,
+};
+
+struct TasAnalog {
+    float x{};
+    float y{};
+};
+
+enum class TasState {
+    Running,
+    Recording,
+    Stopped,
+};
+
+class Tas final : public InputCommon::InputEngine {
+public:
+    explicit Tas(const std::string input_engine_);
+    ~Tas();
+
+    /**
+     * Changes the input status that will be stored in each frame
+     * @param buttons: bitfield with the status of the buttons
+     * @param left_axis: value of the left axis
+     * @param right_axis: value of the right axis
+     */
+    void RecordInput(u64 buttons, TasAnalog left_axis, TasAnalog right_axis);
+
+    // Main loop that records or executes input
+    void UpdateThread();
+
+    //  Sets the flag to start or stop the TAS command excecution and swaps controllers profiles
+    void StartStop();
+
+    //  Stop the TAS and reverts any controller profile
+    void Stop();
+
+    // Sets the flag to reload the file and start from the begining in the next update
+    void Reset();
+
+    /**
+     * Sets the flag to enable or disable recording of inputs
+     * @return Returns true if the current recording status is enabled
+     */
+    bool Record();
+
+    /**
+     * Saves contents of record_commands on a file
+     * @param overwrite_file: Indicates if player 1 should be overwritten
+     */
+    void SaveRecording(bool overwrite_file);
+
+    /**
+     * Returns the current status values of TAS playback/recording
+     * @return Tuple of
+     * TasState indicating the current state out of Running ;
+     * Current playback progress ;
+     * Total length of script file currently loaded or being recorded
+     */
+    std::tuple<TasState, size_t, size_t> GetStatus() const;
+
+private:
+    struct TASCommand {
+        u64 buttons{};
+        TasAnalog l_axis{};
+        TasAnalog r_axis{};
+    };
+
+    /// Loads TAS files from all players
+    void LoadTasFiles();
+
+    /** Loads TAS file from the specified player
+     * @param player_index: player number where data is going to be stored
+     */
+    void LoadTasFile(size_t player_index);
+
+    /** Writes a TAS file from the recorded commands
+     * @param file_name: name of the file to be written
+     */
+    void WriteTasFile(std::u8string file_name);
+
+    /** Inverts the Y axis polarity
+     * @param old: value of the axis
+     * @return new value of the axis
+     */
+    TasAnalog FlipAxisY(TasAnalog old);
+
+    /**
+     * Parses a string containing the axis values. X and Y have a range from -32767 to 32767
+     * @param line: string containing axis values with the following format "x;y"
+     * @return Returns a TAS analog object with axis values with range from -1.0 to 1.0
+     */
+    TasAnalog ReadCommandAxis(const std::string& line) const;
+
+    /**
+     * Parses a string containing the button values. Each button is represented by it's text format
+     * specified in text_to_tas_button array
+     * @param line: string containing button name with the following format "a;b;c;d..."
+     * @return Returns a u64 with each bit representing the status of a button
+     */
+    u64 ReadCommandButtons(const std::string& line) const;
+
+    /**
+     * Reset state of all players
+     */
+    void ClearInput();
+
+    /**
+     * Converts an u64 containing the button status into the text equivalent
+     * @param buttons: bitfield with the status of the buttons
+     * @return Returns a string with the name of the buttons to be written to the file
+     */
+    std::string WriteCommandButtons(u64 buttons) const;
+
+    /**
+     * Converts an TAS analog object containing the axis status into the text equivalent
+     * @param data: value of the axis
+     * @return A string with the value of the axis to be written to the file
+     */
+    std::string WriteCommandAxis(TasAnalog data) const;
+
+    size_t script_length{0};
+    bool is_recording{false};
+    bool is_running{false};
+    bool needs_reset{false};
+    std::array<std::vector<TASCommand>, PLAYER_NUMBER> commands{};
+    std::vector<TASCommand> record_commands{};
+    size_t current_command{0};
+    TASCommand last_input{}; // only used for recording
+};
+} // namespace InputCommon::TasInput

src/input_common/drivers/touch_screen.cpp

@@ -0,0 +1,53 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "common/param_package.h"
+#include "input_common/drivers/touch_screen.h"
+
+namespace InputCommon {
+
+constexpr PadIdentifier identifier = {
+    .guid = Common::UUID{Common::INVALID_UUID},
+    .port = 0,
+    .pad = 0,
+};
+
+TouchScreen::TouchScreen(const std::string input_engine_) : InputEngine(input_engine_) {
+    PreSetController(identifier);
+}
+
+void TouchScreen::TouchMoved(float x, float y, std::size_t finger) {
+    if (finger >= 16) {
+        return;
+    }
+    TouchPressed(x, y, finger);
+}
+
+void TouchScreen::TouchPressed(float x, float y, std::size_t finger) {
+    if (finger >= 16) {
+        return;
+    }
+    SetButton(identifier, static_cast<int>(finger), true);
+    SetAxis(identifier, static_cast<int>(finger * 2), x);
+    SetAxis(identifier, static_cast<int>(finger * 2 + 1), y);
+}
+
+void TouchScreen::TouchReleased(std::size_t finger) {
+    if (finger >= 16) {
+        return;
+    }
+    SetButton(identifier, static_cast<int>(finger), false);
+    SetAxis(identifier, static_cast<int>(finger * 2), 0.0f);
+    SetAxis(identifier, static_cast<int>(finger * 2 + 1), 0.0f);
+}
+
+void TouchScreen::ReleaseAllTouch() {
+    for (int index = 0; index < 16; ++index) {
+        SetButton(identifier, index, false);
+        SetAxis(identifier, index * 2, 0.0f);
+        SetAxis(identifier, index * 2 + 1, 0.0f);
+    }
+}
+
+} // namespace InputCommon

src/input_common/drivers/touch_screen.h

@@ -0,0 +1,44 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include "input_common/input_engine.h"
+
+namespace InputCommon {
+
+/**
+ * A button device factory representing a keyboard. It receives keyboard events and forward them
+ * to all button devices it created.
+ */
+class TouchScreen final : public InputCommon::InputEngine {
+public:
+    explicit TouchScreen(const std::string input_engine_);
+
+    /**
+     * Signals that mouse has moved.
+     * @param x the x-coordinate of the cursor
+     * @param y the y-coordinate of the cursor
+     * @param center_x the x-coordinate of the middle of the screen
+     * @param center_y the y-coordinate of the middle of the screen
+     */
+    void TouchMoved(float x, float y, std::size_t finger);
+
+    /**
+     * Sets the status of all buttons bound with the key to pressed
+     * @param key_code the code of the key to press
+     */
+    void TouchPressed(float x, float y, std::size_t finger);
+
+    /**
+     * Sets the status of all buttons bound with the key to released
+     * @param key_code the code of the key to release
+     */
+    void TouchReleased(std::size_t finger);
+
+    /// Resets all inputs to their initial value
+    void ReleaseAllTouch();
+};
+
+} // namespace InputCommon

src/input_common/drivers/udp_client.cpp

@@ -0,0 +1,401 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <random>
+#include <boost/asio.hpp>
+#include <fmt/format.h>
+
+#include "common/logging/log.h"
+#include "common/param_package.h"
+#include "common/settings.h"
+#include "input_common/drivers/udp_client.h"
+#include "input_common/helpers/udp_protocol.h"
+
+using boost::asio::ip::udp;
+
+namespace InputCommon::CemuhookUDP {
+
+struct SocketCallback {
+    std::function<void(Response::Version)> version;
+    std::function<void(Response::PortInfo)> port_info;
+    std::function<void(Response::PadData)> pad_data;
+};
+
+class Socket {
+public:
+    using clock = std::chrono::system_clock;
+
+    explicit Socket(const std::string& host, u16 port, SocketCallback callback_)
+        : callback(std::move(callback_)), timer(io_service),
+          socket(io_service, udp::endpoint(udp::v4(), 0)), client_id(GenerateRandomClientId()) {
+        boost::system::error_code ec{};
+        auto ipv4 = boost::asio::ip::make_address_v4(host, ec);
+        if (ec.value() != boost::system::errc::success) {
+            LOG_ERROR(Input, "Invalid IPv4 address \"{}\" provided to socket", host);
+            ipv4 = boost::asio::ip::address_v4{};
+        }
+
+        send_endpoint = {udp::endpoint(ipv4, port)};
+    }
+
+    void Stop() {
+        io_service.stop();
+    }
+
+    void Loop() {
+        io_service.run();
+    }
+
+    void StartSend(const clock::time_point& from) {
+        timer.expires_at(from + std::chrono::seconds(3));
+        timer.async_wait([this](const boost::system::error_code& error) { HandleSend(error); });
+    }
+
+    void StartReceive() {
+        socket.async_receive_from(
+            boost::asio::buffer(receive_buffer), receive_endpoint,
+            [this](const boost::system::error_code& error, std::size_t bytes_transferred) {
+                HandleReceive(error, bytes_transferred);
+            });
+    }
+
+private:
+    u32 GenerateRandomClientId() const {
+        std::random_device device;
+        return device();
+    }
+
+    void HandleReceive(const boost::system::error_code&, std::size_t bytes_transferred) {
+        if (auto type = Response::Validate(receive_buffer.data(), bytes_transferred)) {
+            switch (*type) {
+            case Type::Version: {
+                Response::Version version;
+                std::memcpy(&version, &receive_buffer[sizeof(Header)], sizeof(Response::Version));
+                callback.version(std::move(version));
+                break;
+            }
+            case Type::PortInfo: {
+                Response::PortInfo port_info;
+                std::memcpy(&port_info, &receive_buffer[sizeof(Header)],
+                            sizeof(Response::PortInfo));
+                callback.port_info(std::move(port_info));
+                break;
+            }
+            case Type::PadData: {
+                Response::PadData pad_data;
+                std::memcpy(&pad_data, &receive_buffer[sizeof(Header)], sizeof(Response::PadData));
+                callback.pad_data(std::move(pad_data));
+                break;
+            }
+            }
+        }
+        StartReceive();
+    }
+
+    void HandleSend(const boost::system::error_code&) {
+        boost::system::error_code _ignored{};
+        // Send a request for getting port info for the pad
+        const Request::PortInfo port_info{4, {0, 1, 2, 3}};
+        const auto port_message = Request::Create(port_info, client_id);
+        std::memcpy(&send_buffer1, &port_message, PORT_INFO_SIZE);
+        socket.send_to(boost::asio::buffer(send_buffer1), send_endpoint, {}, _ignored);
+
+        // Send a request for getting pad data for the pad
+        const Request::PadData pad_data{
+            Request::PadData::Flags::AllPorts,
+            0,
+            EMPTY_MAC_ADDRESS,
+        };
+        const auto pad_message = Request::Create(pad_data, client_id);
+        std::memcpy(send_buffer2.data(), &pad_message, PAD_DATA_SIZE);
+        socket.send_to(boost::asio::buffer(send_buffer2), send_endpoint, {}, _ignored);
+        StartSend(timer.expiry());
+    }
+
+    SocketCallback callback;
+    boost::asio::io_service io_service;
+    boost::asio::basic_waitable_timer<clock> timer;
+    udp::socket socket;
+
+    const u32 client_id;
+
+    static constexpr std::size_t PORT_INFO_SIZE = sizeof(Message<Request::PortInfo>);
+    static constexpr std::size_t PAD_DATA_SIZE = sizeof(Message<Request::PadData>);
+    std::array<u8, PORT_INFO_SIZE> send_buffer1;
+    std::array<u8, PAD_DATA_SIZE> send_buffer2;
+    udp::endpoint send_endpoint;
+
+    std::array<u8, MAX_PACKET_SIZE> receive_buffer;
+    udp::endpoint receive_endpoint;
+};
+
+static void SocketLoop(Socket* socket) {
+    socket->StartReceive();
+    socket->StartSend(Socket::clock::now());
+    socket->Loop();
+}
+
+UDPClient::UDPClient(const std::string& input_engine_) : InputEngine(input_engine_) {
+    LOG_INFO(Input, "Udp Initialization started");
+    ReloadSockets();
+}
+
+UDPClient::~UDPClient() {
+    Reset();
+}
+
+UDPClient::ClientConnection::ClientConnection() = default;
+
+UDPClient::ClientConnection::~ClientConnection() = default;
+
+void UDPClient::ReloadSockets() {
+    Reset();
+
+    std::stringstream servers_ss(Settings::values.udp_input_servers.GetValue());
+    std::string server_token;
+    std::size_t client = 0;
+    while (std::getline(servers_ss, server_token, ',')) {
+        if (client == MAX_UDP_CLIENTS) {
+            break;
+        }
+        std::stringstream server_ss(server_token);
+        std::string token;
+        std::getline(server_ss, token, ':');
+        std::string udp_input_address = token;
+        std::getline(server_ss, token, ':');
+        char* temp;
+        const u16 udp_input_port = static_cast<u16>(std::strtol(token.c_str(), &temp, 0));
+        if (*temp != '\0') {
+            LOG_ERROR(Input, "Port number is not valid {}", token);
+            continue;
+        }
+
+        const std::size_t client_number = GetClientNumber(udp_input_address, udp_input_port);
+        if (client_number != MAX_UDP_CLIENTS) {
+            LOG_ERROR(Input, "Duplicated UDP servers found");
+            continue;
+        }
+        StartCommunication(client++, udp_input_address, udp_input_port);
+    }
+}
+
+std::size_t UDPClient::GetClientNumber(std::string_view host, u16 port) const {
+    for (std::size_t client = 0; client < clients.size(); client++) {
+        if (clients[client].active == -1) {
+            continue;
+        }
+        if (clients[client].host == host && clients[client].port == port) {
+            return client;
+        }
+    }
+    return MAX_UDP_CLIENTS;
+}
+
+void UDPClient::OnVersion([[maybe_unused]] Response::Version data) {
+    LOG_TRACE(Input, "Version packet received: {}", data.version);
+}
+
+void UDPClient::OnPortInfo([[maybe_unused]] Response::PortInfo data) {
+    LOG_TRACE(Input, "PortInfo packet received: {}", data.model);
+}
+
+void UDPClient::OnPadData(Response::PadData data, std::size_t client) {
+    const std::size_t pad_index = (client * PADS_PER_CLIENT) + data.info.id;
+
+    if (pad_index >= pads.size()) {
+        LOG_ERROR(Input, "Invalid pad id {}", data.info.id);
+        return;
+    }
+
+    LOG_TRACE(Input, "PadData packet received");
+    if (data.packet_counter == pads[pad_index].packet_sequence) {
+        LOG_WARNING(
+            Input,
+            "PadData packet dropped because its stale info. Current count: {} Packet count: {}",
+            pads[pad_index].packet_sequence, data.packet_counter);
+        pads[pad_index].connected = false;
+        return;
+    }
+
+    clients[client].active = 1;
+    pads[pad_index].connected = true;
+    pads[pad_index].packet_sequence = data.packet_counter;
+
+    const auto now = std::chrono::steady_clock::now();
+    const auto time_difference = static_cast<u64>(
+        std::chrono::duration_cast<std::chrono::microseconds>(now - pads[pad_index].last_update)
+            .count());
+    pads[pad_index].last_update = now;
+
+    // Gyroscope values are not it the correct scale from better joy.
+    // Dividing by 312 allows us to make one full turn = 1 turn
+    // This must be a configurable valued called sensitivity
+    const float gyro_scale = 1.0f / 312.0f;
+
+    const BasicMotion motion{
+        .gyro_x = data.gyro.pitch * gyro_scale,
+        .gyro_y = data.gyro.roll * gyro_scale,
+        .gyro_z = -data.gyro.yaw * gyro_scale,
+        .accel_x = data.accel.x,
+        .accel_y = -data.accel.z,
+        .accel_z = data.accel.y,
+        .delta_timestamp = time_difference,
+    };
+    const PadIdentifier identifier = GetPadIdentifier(pad_index);
+    SetMotion(identifier, 0, motion);
+
+    for (std::size_t id = 0; id < data.touch.size(); ++id) {
+        const auto touch_pad = data.touch[id];
+        const int touch_id = static_cast<int>(client * 2 + id);
+
+        // TODO: Use custom calibration per device
+        const Common::ParamPackage touch_param(Settings::values.touch_device.GetValue());
+        const u16 min_x = static_cast<u16>(touch_param.Get("min_x", 100));
+        const u16 min_y = static_cast<u16>(touch_param.Get("min_y", 50));
+        const u16 max_x = static_cast<u16>(touch_param.Get("max_x", 1800));
+        const u16 max_y = static_cast<u16>(touch_param.Get("max_y", 850));
+
+        const f32 x =
+            static_cast<f32>(std::clamp(static_cast<u16>(touch_pad.x), min_x, max_x) - min_x) /
+            static_cast<f32>(max_x - min_x);
+        const f32 y =
+            static_cast<f32>(std::clamp(static_cast<u16>(touch_pad.y), min_y, max_y) - min_y) /
+            static_cast<f32>(max_y - min_y);
+
+        if (touch_pad.is_active) {
+            SetAxis(identifier, touch_id * 2, x);
+            SetAxis(identifier, touch_id * 2 + 1, y);
+            SetButton(identifier, touch_id, true);
+            continue;
+        }
+        SetAxis(identifier, touch_id * 2, 0);
+        SetAxis(identifier, touch_id * 2 + 1, 0);
+        SetButton(identifier, touch_id, false);
+    }
+}
+
+void UDPClient::StartCommunication(std::size_t client, const std::string& host, u16 port) {
+    SocketCallback callback{[this](Response::Version version) { OnVersion(version); },
+                            [this](Response::PortInfo info) { OnPortInfo(info); },
+                            [this, client](Response::PadData data) { OnPadData(data, client); }};
+    LOG_INFO(Input, "Starting communication with UDP input server on {}:{}", host, port);
+    clients[client].uuid = GetHostUUID(host);
+    clients[client].host = host;
+    clients[client].port = port;
+    clients[client].active = 0;
+    clients[client].socket = std::make_unique<Socket>(host, port, callback);
+    clients[client].thread = std::thread{SocketLoop, clients[client].socket.get()};
+    for (std::size_t index = 0; index < PADS_PER_CLIENT; ++index) {
+        const PadIdentifier identifier = GetPadIdentifier(client * PADS_PER_CLIENT + index);
+        PreSetController(identifier);
+    }
+}
+
+const PadIdentifier UDPClient::GetPadIdentifier(std::size_t pad_index) const {
+    const std::size_t client = pad_index / PADS_PER_CLIENT;
+    return {
+        .guid = clients[client].uuid,
+        .port = static_cast<std::size_t>(clients[client].port),
+        .pad = pad_index,
+    };
+}
+
+const Common::UUID UDPClient::GetHostUUID(const std::string host) const {
+    const auto ip = boost::asio::ip::address_v4::from_string(host);
+    const auto hex_host = fmt::format("{:06x}", ip.to_ulong());
+    return Common::UUID{hex_host};
+}
+
+void UDPClient::Reset() {
+    for (auto& client : clients) {
+        if (client.thread.joinable()) {
+            client.active = -1;
+            client.socket->Stop();
+            client.thread.join();
+        }
+    }
+}
+
+void TestCommunication(const std::string& host, u16 port,
+                       const std::function<void()>& success_callback,
+                       const std::function<void()>& failure_callback) {
+    std::thread([=] {
+        Common::Event success_event;
+        SocketCallback callback{
+            .version = [](Response::Version) {},
+            .port_info = [](Response::PortInfo) {},
+            .pad_data = [&](Response::PadData) { success_event.Set(); },
+        };
+        Socket socket{host, port, std::move(callback)};
+        std::thread worker_thread{SocketLoop, &socket};
+        const bool result =
+            success_event.WaitUntil(std::chrono::steady_clock::now() + std::chrono::seconds(10));
+        socket.Stop();
+        worker_thread.join();
+        if (result) {
+            success_callback();
+        } else {
+            failure_callback();
+        }
+    }).detach();
+}
+
+CalibrationConfigurationJob::CalibrationConfigurationJob(
+    const std::string& host, u16 port, std::function<void(Status)> status_callback,
+    std::function<void(u16, u16, u16, u16)> data_callback) {
+
+    std::thread([=, this] {
+        Status current_status{Status::Initialized};
+        SocketCallback callback{
+            [](Response::Version) {}, [](Response::PortInfo) {},
+            [&](Response::PadData data) {
+                static constexpr u16 CALIBRATION_THRESHOLD = 100;
+                static constexpr u16 MAX_VALUE = UINT16_MAX;
+
+                if (current_status == Status::Initialized) {
+                    // Receiving data means the communication is ready now
+                    current_status = Status::Ready;
+                    status_callback(current_status);
+                }
+                const auto& touchpad_0 = data.touch[0];
+                if (touchpad_0.is_active == 0) {
+                    return;
+                }
+                LOG_DEBUG(Input, "Current touch: {} {}", touchpad_0.x, touchpad_0.y);
+                const u16 min_x = std::min(MAX_VALUE, static_cast<u16>(touchpad_0.x));
+                const u16 min_y = std::min(MAX_VALUE, static_cast<u16>(touchpad_0.y));
+                if (current_status == Status::Ready) {
+                    // First touch - min data (min_x/min_y)
+                    current_status = Status::Stage1Completed;
+                    status_callback(current_status);
+                }
+                if (touchpad_0.x - min_x > CALIBRATION_THRESHOLD &&
+                    touchpad_0.y - min_y > CALIBRATION_THRESHOLD) {
+                    // Set the current position as max value and finishes configuration
+                    const u16 max_x = touchpad_0.x;
+                    const u16 max_y = touchpad_0.y;
+                    current_status = Status::Completed;
+                    data_callback(min_x, min_y, max_x, max_y);
+                    status_callback(current_status);
+
+                    complete_event.Set();
+                }
+            }};
+        Socket socket{host, port, std::move(callback)};
+        std::thread worker_thread{SocketLoop, &socket};
+        complete_event.Wait();
+        socket.Stop();
+        worker_thread.join();
+    }).detach();
+}
+
+CalibrationConfigurationJob::~CalibrationConfigurationJob() {
+    Stop();
+}
+
+void CalibrationConfigurationJob::Stop() {
+    complete_event.Set();
+}
+
+} // namespace InputCommon::CemuhookUDP

src/input_common/drivers/udp_client.h

@@ -0,0 +1,129 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <optional>
+
+#include "common/common_types.h"
+#include "common/thread.h"
+#include "input_common/input_engine.h"
+
+namespace InputCommon::CemuhookUDP {
+
+class Socket;
+
+namespace Response {
+struct PadData;
+struct PortInfo;
+struct TouchPad;
+struct Version;
+} // namespace Response
+
+enum class PadTouch {
+    Click,
+    Undefined,
+};
+
+struct UDPPadStatus {
+    std::string host{"127.0.0.1"};
+    u16 port{26760};
+    std::size_t pad_index{};
+};
+
+struct DeviceStatus {
+    std::mutex update_mutex;
+
+    // calibration data for scaling the device's touch area to 3ds
+    struct CalibrationData {
+        u16 min_x{};
+        u16 min_y{};
+        u16 max_x{};
+        u16 max_y{};
+    };
+    std::optional<CalibrationData> touch_calibration;
+};
+
+/**
+ * A button device factory representing a keyboard. It receives keyboard events and forward them
+ * to all button devices it created.
+ */
+class UDPClient final : public InputCommon::InputEngine {
+public:
+    explicit UDPClient(const std::string& input_engine_);
+    ~UDPClient();
+
+    void ReloadSockets();
+
+private:
+    struct PadData {
+        std::size_t pad_index{};
+        bool connected{};
+        DeviceStatus status;
+        u64 packet_sequence{};
+
+        std::chrono::time_point<std::chrono::steady_clock> last_update;
+    };
+
+    struct ClientConnection {
+        ClientConnection();
+        ~ClientConnection();
+        Common::UUID uuid{"7F000001"};
+        std::string host{"127.0.0.1"};
+        u16 port{26760};
+        s8 active{-1};
+        std::unique_ptr<Socket> socket;
+        std::thread thread;
+    };
+
+    // For shutting down, clear all data, join all threads, release usb
+    void Reset();
+
+    // Translates configuration to client number
+    std::size_t GetClientNumber(std::string_view host, u16 port) const;
+
+    void OnVersion(Response::Version);
+    void OnPortInfo(Response::PortInfo);
+    void OnPadData(Response::PadData, std::size_t client);
+    void StartCommunication(std::size_t client, const std::string& host, u16 port);
+    const PadIdentifier GetPadIdentifier(std::size_t pad_index) const;
+    const Common::UUID GetHostUUID(const std::string host) const;
+
+    // Allocate clients for 8 udp servers
+    static constexpr std::size_t MAX_UDP_CLIENTS = 8;
+    static constexpr std::size_t PADS_PER_CLIENT = 4;
+    std::array<PadData, MAX_UDP_CLIENTS * PADS_PER_CLIENT> pads{};
+    std::array<ClientConnection, MAX_UDP_CLIENTS> clients{};
+};
+
+/// An async job allowing configuration of the touchpad calibration.
+class CalibrationConfigurationJob {
+public:
+    enum class Status {
+        Initialized,
+        Ready,
+        Stage1Completed,
+        Completed,
+    };
+    /**
+     * Constructs and starts the job with the specified parameter.
+     *
+     * @param status_callback Callback for job status updates
+     * @param data_callback Called when calibration data is ready
+     */
+    explicit CalibrationConfigurationJob(const std::string& host, u16 port,
+                                         std::function<void(Status)> status_callback,
+                                         std::function<void(u16, u16, u16, u16)> data_callback);
+    ~CalibrationConfigurationJob();
+    void Stop();
+
+private:
+    Common::Event complete_event;
+};
+
+void TestCommunication(const std::string& host, u16 port,
+                       const std::function<void()>& success_callback,
+                       const std::function<void()>& failure_callback);
+
+} // namespace InputCommon::CemuhookUDP

src/input_common/helpers/stick_from_buttons.cpp

@@ -0,0 +1,304 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <chrono>
+#include <cmath>
+#include "common/math_util.h"
+#include "common/settings.h"
+#include "input_common/helpers/stick_from_buttons.h"
+
+namespace InputCommon {
+
+class Stick final : public Common::Input::InputDevice {
+public:
+    using Button = std::unique_ptr<Common::Input::InputDevice>;
+
+    Stick(Button up_, Button down_, Button left_, Button right_, Button modifier_,
+          float modifier_scale_, float modifier_angle_)
+        : up(std::move(up_)), down(std::move(down_)), left(std::move(left_)),
+          right(std::move(right_)), modifier(std::move(modifier_)), modifier_scale(modifier_scale_),
+          modifier_angle(modifier_angle_) {
+        Common::Input::InputCallback button_up_callback{
+            [this](Common::Input::CallbackStatus callback_) { UpdateUpButtonStatus(callback_); }};
+        Common::Input::InputCallback button_down_callback{
+            [this](Common::Input::CallbackStatus callback_) { UpdateDownButtonStatus(callback_); }};
+        Common::Input::InputCallback button_left_callback{
+            [this](Common::Input::CallbackStatus callback_) { UpdateLeftButtonStatus(callback_); }};
+        Common::Input::InputCallback button_right_callback{
+            [this](Common::Input::CallbackStatus callback_) {
+                UpdateRightButtonStatus(callback_);
+            }};
+        Common::Input::InputCallback button_modifier_callback{
+            [this](Common::Input::CallbackStatus callback_) { UpdateModButtonStatus(callback_); }};
+        up->SetCallback(button_up_callback);
+        down->SetCallback(button_down_callback);
+        left->SetCallback(button_left_callback);
+        right->SetCallback(button_right_callback);
+        modifier->SetCallback(button_modifier_callback);
+        last_x_axis_value = 0.0f;
+        last_y_axis_value = 0.0f;
+    }
+
+    bool IsAngleGreater(float old_angle, float new_angle) const {
+        constexpr float TAU = Common::PI * 2.0f;
+        // Use wider angle to ease the transition.
+        constexpr float aperture = TAU * 0.15f;
+        const float top_limit = new_angle + aperture;
+        return (old_angle > new_angle && old_angle <= top_limit) ||
+               (old_angle + TAU > new_angle && old_angle + TAU <= top_limit);
+    }
+
+    bool IsAngleSmaller(float old_angle, float new_angle) const {
+        constexpr float TAU = Common::PI * 2.0f;
+        // Use wider angle to ease the transition.
+        constexpr float aperture = TAU * 0.15f;
+        const float bottom_limit = new_angle - aperture;
+        return (old_angle >= bottom_limit && old_angle < new_angle) ||
+               (old_angle - TAU >= bottom_limit && old_angle - TAU < new_angle);
+    }
+
+    float GetAngle(std::chrono::time_point<std::chrono::steady_clock> now) const {
+        constexpr float TAU = Common::PI * 2.0f;
+        float new_angle = angle;
+
+        auto time_difference = static_cast<float>(
+            std::chrono::duration_cast<std::chrono::microseconds>(now - last_update).count());
+        time_difference /= 1000.0f * 1000.0f;
+        if (time_difference > 0.5f) {
+            time_difference = 0.5f;
+        }
+
+        if (IsAngleGreater(new_angle, goal_angle)) {
+            new_angle -= modifier_angle * time_difference;
+            if (new_angle < 0) {
+                new_angle += TAU;
+            }
+            if (!IsAngleGreater(new_angle, goal_angle)) {
+                return goal_angle;
+            }
+        } else if (IsAngleSmaller(new_angle, goal_angle)) {
+            new_angle += modifier_angle * time_difference;
+            if (new_angle >= TAU) {
+                new_angle -= TAU;
+            }
+            if (!IsAngleSmaller(new_angle, goal_angle)) {
+                return goal_angle;
+            }
+        } else {
+            return goal_angle;
+        }
+        return new_angle;
+    }
+
+    void SetGoalAngle(bool r, bool l, bool u, bool d) {
+        // Move to the right
+        if (r && !u && !d) {
+            goal_angle = 0.0f;
+        }
+
+        // Move to the upper right
+        if (r && u && !d) {
+            goal_angle = Common::PI * 0.25f;
+        }
+
+        // Move up
+        if (u && !l && !r) {
+            goal_angle = Common::PI * 0.5f;
+        }
+
+        // Move to the upper left
+        if (l && u && !d) {
+            goal_angle = Common::PI * 0.75f;
+        }
+
+        // Move to the left
+        if (l && !u && !d) {
+            goal_angle = Common::PI;
+        }
+
+        // Move to the bottom left
+        if (l && !u && d) {
+            goal_angle = Common::PI * 1.25f;
+        }
+
+        // Move down
+        if (d && !l && !r) {
+            goal_angle = Common::PI * 1.5f;
+        }
+
+        // Move to the bottom right
+        if (r && !u && d) {
+            goal_angle = Common::PI * 1.75f;
+        }
+    }
+
+    void UpdateUpButtonStatus(Common::Input::CallbackStatus button_callback) {
+        up_status = button_callback.button_status.value;
+        UpdateStatus();
+    }
+
+    void UpdateDownButtonStatus(Common::Input::CallbackStatus button_callback) {
+        down_status = button_callback.button_status.value;
+        UpdateStatus();
+    }
+
+    void UpdateLeftButtonStatus(Common::Input::CallbackStatus button_callback) {
+        left_status = button_callback.button_status.value;
+        UpdateStatus();
+    }
+
+    void UpdateRightButtonStatus(Common::Input::CallbackStatus button_callback) {
+        right_status = button_callback.button_status.value;
+        UpdateStatus();
+    }
+
+    void UpdateModButtonStatus(Common::Input::CallbackStatus button_callback) {
+        modifier_status = button_callback.button_status.value;
+        UpdateStatus();
+    }
+
+    void UpdateStatus() {
+        const float coef = modifier_status ? modifier_scale : 1.0f;
+
+        bool r = right_status;
+        bool l = left_status;
+        bool u = up_status;
+        bool d = down_status;
+
+        // Eliminate contradictory movements
+        if (r && l) {
+            r = false;
+            l = false;
+        }
+        if (u && d) {
+            u = false;
+            d = false;
+        }
+
+        // Move if a key is pressed
+        if (r || l || u || d) {
+            amplitude = coef;
+        } else {
+            amplitude = 0;
+        }
+
+        const auto now = std::chrono::steady_clock::now();
+        const auto time_difference = static_cast<u64>(
+            std::chrono::duration_cast<std::chrono::milliseconds>(now - last_update).count());
+
+        if (time_difference < 10) {
+            // Disable analog mode if inputs are too fast
+            SetGoalAngle(r, l, u, d);
+            angle = goal_angle;
+        } else {
+            angle = GetAngle(now);
+            SetGoalAngle(r, l, u, d);
+        }
+
+        last_update = now;
+        Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Stick,
+            .stick_status = GetStatus(),
+        };
+        last_x_axis_value = status.stick_status.x.raw_value;
+        last_y_axis_value = status.stick_status.y.raw_value;
+        TriggerOnChange(status);
+    }
+
+    void ForceUpdate() override {
+        up->ForceUpdate();
+        down->ForceUpdate();
+        left->ForceUpdate();
+        right->ForceUpdate();
+        modifier->ForceUpdate();
+    }
+
+    void SoftUpdate() override {
+        Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Stick,
+            .stick_status = GetStatus(),
+        };
+        if (last_x_axis_value == status.stick_status.x.raw_value &&
+            last_y_axis_value == status.stick_status.y.raw_value) {
+            return;
+        }
+        last_x_axis_value = status.stick_status.x.raw_value;
+        last_y_axis_value = status.stick_status.y.raw_value;
+        TriggerOnChange(status);
+    }
+
+    Common::Input::StickStatus GetStatus() const {
+        Common::Input::StickStatus status{};
+        status.x.properties = properties;
+        status.y.properties = properties;
+        if (Settings::values.emulate_analog_keyboard) {
+            const auto now = std::chrono::steady_clock::now();
+            float angle_ = GetAngle(now);
+            status.x.raw_value = std::cos(angle_) * amplitude;
+            status.y.raw_value = std::sin(angle_) * amplitude;
+            return status;
+        }
+        constexpr float SQRT_HALF = 0.707106781f;
+        int x = 0, y = 0;
+        if (right_status) {
+            ++x;
+        }
+        if (left_status) {
+            --x;
+        }
+        if (up_status) {
+            ++y;
+        }
+        if (down_status) {
+            --y;
+        }
+        const float coef = modifier_status ? modifier_scale : 1.0f;
+        status.x.raw_value = static_cast<float>(x) * coef * (y == 0 ? 1.0f : SQRT_HALF);
+        status.y.raw_value = static_cast<float>(y) * coef * (x == 0 ? 1.0f : SQRT_HALF);
+        return status;
+    }
+
+private:
+    Button up;
+    Button down;
+    Button left;
+    Button right;
+    Button modifier;
+    float modifier_scale;
+    float modifier_angle;
+    float angle{};
+    float goal_angle{};
+    float amplitude{};
+    bool up_status;
+    bool down_status;
+    bool left_status;
+    bool right_status;
+    bool modifier_status;
+    float last_x_axis_value;
+    float last_y_axis_value;
+    const Common::Input::AnalogProperties properties{0.0f, 1.0f, 0.5f, 0.0f, false};
+    std::chrono::time_point<std::chrono::steady_clock> last_update;
+};
+
+std::unique_ptr<Common::Input::InputDevice> StickFromButton::Create(
+    const Common::ParamPackage& params) {
+    const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize();
+    auto up = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
+        params.Get("up", null_engine));
+    auto down = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
+        params.Get("down", null_engine));
+    auto left = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
+        params.Get("left", null_engine));
+    auto right = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
+        params.Get("right", null_engine));
+    auto modifier = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
+        params.Get("modifier", null_engine));
+    auto modifier_scale = params.Get("modifier_scale", 0.5f);
+    auto modifier_angle = params.Get("modifier_angle", 5.5f);
+    return std::make_unique<Stick>(std::move(up), std::move(down), std::move(left),
+                                   std::move(right), std::move(modifier), modifier_scale,
+                                   modifier_angle);
+}
+
+} // namespace InputCommon

src/input_common/helpers/stick_from_buttons.h

@@ -0,0 +1,30 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/input.h"
+
+namespace InputCommon {
+
+/**
+ * An analog device factory that takes direction button devices and combines them into a analog
+ * device.
+ */
+class StickFromButton final : public Common::Input::Factory<Common::Input::InputDevice> {
+public:
+    /**
+     * Creates an analog device from direction button devices
+     * @param params contains parameters for creating the device:
+     *     - "up": a serialized ParamPackage for creating a button device for up direction
+     *     - "down": a serialized ParamPackage for creating a button device for down direction
+     *     - "left": a serialized ParamPackage for creating a button device for left direction
+     *     - "right": a serialized ParamPackage  for creating a button device for right direction
+     *     - "modifier": a serialized ParamPackage for creating a button device as the modifier
+     *     - "modifier_scale": a float for the multiplier the modifier gives to the position
+     */
+    std::unique_ptr<Common::Input::InputDevice> Create(const Common::ParamPackage& params) override;
+};
+
+} // namespace InputCommon

src/input_common/helpers/touch_from_buttons.cpp

@@ -0,0 +1,81 @@
+// Copyright 2020 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include "common/settings.h"
+#include "core/frontend/framebuffer_layout.h"
+#include "input_common/helpers/touch_from_buttons.h"
+
+namespace InputCommon {
+
+class TouchFromButtonDevice final : public Common::Input::InputDevice {
+public:
+    using Button = std::unique_ptr<Common::Input::InputDevice>;
+    TouchFromButtonDevice(Button button_, int touch_id_, float x_, float y_)
+        : button(std::move(button_)), touch_id(touch_id_), x(x_), y(y_) {
+        Common::Input::InputCallback button_up_callback{
+            [this](Common::Input::CallbackStatus callback_) { UpdateButtonStatus(callback_); }};
+        last_button_value = false;
+        button->SetCallback(button_up_callback);
+        button->ForceUpdate();
+    }
+
+    void ForceUpdate() override {
+        button->ForceUpdate();
+    }
+
+    Common::Input::TouchStatus GetStatus(bool pressed) const {
+        const Common::Input::ButtonStatus button_status{
+            .value = pressed,
+        };
+        Common::Input::TouchStatus status{
+            .pressed = button_status,
+            .x = {},
+            .y = {},
+            .id = touch_id,
+        };
+        status.x.properties = properties;
+        status.y.properties = properties;
+
+        if (!pressed) {
+            return status;
+        }
+
+        status.x.raw_value = x;
+        status.y.raw_value = y;
+        return status;
+    }
+
+    void UpdateButtonStatus(Common::Input::CallbackStatus button_callback) {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Touch,
+            .touch_status = GetStatus(button_callback.button_status.value),
+        };
+        if (last_button_value != button_callback.button_status.value) {
+            last_button_value = button_callback.button_status.value;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    Button button;
+    bool last_button_value;
+    const int touch_id;
+    const float x;
+    const float y;
+    const Common::Input::AnalogProperties properties{0.0f, 1.0f, 0.5f, 0.0f, false};
+};
+
+std::unique_ptr<Common::Input::InputDevice> TouchFromButton::Create(
+    const Common::ParamPackage& params) {
+    const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize();
+    auto button = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
+        params.Get("button", null_engine));
+    const auto touch_id = params.Get("touch_id", 0);
+    const float x = params.Get("x", 0.0f) / 1280.0f;
+    const float y = params.Get("y", 0.0f) / 720.0f;
+    return std::make_unique<TouchFromButtonDevice>(std::move(button), touch_id, x, y);
+}
+
+} // namespace InputCommon

src/input_common/helpers/touch_from_buttons.h

@@ -0,0 +1,22 @@
+// Copyright 2020 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/input.h"
+
+namespace InputCommon {
+
+/**
+ * A touch device factory that takes a list of button devices and combines them into a touch device.
+ */
+class TouchFromButton final : public Common::Input::Factory<Common::Input::InputDevice> {
+public:
+    /**
+     * Creates a touch device from a list of button devices
+     */
+    std::unique_ptr<Common::Input::InputDevice> Create(const Common::ParamPackage& params) override;
+};
+
+} // namespace InputCommon

src/input_common/helpers/udp_protocol.cpp

@@ -0,0 +1,78 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cstddef>
+#include <cstring>
+#include "common/logging/log.h"
+#include "input_common/helpers/udp_protocol.h"
+
+namespace InputCommon::CemuhookUDP {
+
+static constexpr std::size_t GetSizeOfResponseType(Type t) {
+    switch (t) {
+    case Type::Version:
+        return sizeof(Response::Version);
+    case Type::PortInfo:
+        return sizeof(Response::PortInfo);
+    case Type::PadData:
+        return sizeof(Response::PadData);
+    }
+    return 0;
+}
+
+namespace Response {
+
+/**
+ * Returns Type if the packet is valid, else none
+ *
+ * Note: Modifies the buffer to zero out the crc (since thats the easiest way to check without
+ * copying the buffer)
+ */
+std::optional<Type> Validate(u8* data, std::size_t size) {
+    if (size < sizeof(Header)) {
+        return std::nullopt;
+    }
+    Header header{};
+    std::memcpy(&header, data, sizeof(Header));
+    if (header.magic != SERVER_MAGIC) {
+        LOG_ERROR(Input, "UDP Packet has an unexpected magic value");
+        return std::nullopt;
+    }
+    if (header.protocol_version != PROTOCOL_VERSION) {
+        LOG_ERROR(Input, "UDP Packet protocol mismatch");
+        return std::nullopt;
+    }
+    if (header.type < Type::Version || header.type > Type::PadData) {
+        LOG_ERROR(Input, "UDP Packet is an unknown type");
+        return std::nullopt;
+    }
+
+    // Packet size must equal sizeof(Header) + sizeof(Data)
+    // and also verify that the packet info mentions the correct size. Since the spec includes the
+    // type of the packet as part of the data, we need to include it in size calculations here
+    // ie: payload_length == sizeof(T) + sizeof(Type)
+    const std::size_t data_len = GetSizeOfResponseType(header.type);
+    if (header.payload_length != data_len + sizeof(Type) || size < data_len + sizeof(Header)) {
+        LOG_ERROR(
+            Input,
+            "UDP Packet payload length doesn't match. Received: {} PayloadLength: {} Expected: {}",
+            size, header.payload_length, data_len + sizeof(Type));
+        return std::nullopt;
+    }
+
+    const u32 crc32 = header.crc;
+    boost::crc_32_type result;
+    // zero out the crc in the buffer and then run the crc against it
+    std::memset(&data[offsetof(Header, crc)], 0, sizeof(u32_le));
+
+    result.process_bytes(data, data_len + sizeof(Header));
+    if (crc32 != result.checksum()) {
+        LOG_ERROR(Input, "UDP Packet CRC check failed. Offset: {}", offsetof(Header, crc));
+        return std::nullopt;
+    }
+    return header.type;
+}
+} // namespace Response
+
+} // namespace InputCommon::CemuhookUDP

src/input_common/helpers/udp_protocol.h

@@ -0,0 +1,259 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <optional>
+#include <type_traits>
+
+#include <boost/crc.hpp>
+
+#include "common/bit_field.h"
+#include "common/swap.h"
+
+namespace InputCommon::CemuhookUDP {
+
+constexpr std::size_t MAX_PACKET_SIZE = 100;
+constexpr u16 PROTOCOL_VERSION = 1001;
+constexpr u32 CLIENT_MAGIC = 0x43555344; // DSUC (but flipped for LE)
+constexpr u32 SERVER_MAGIC = 0x53555344; // DSUS (but flipped for LE)
+
+enum class Type : u32 {
+    Version = 0x00100000,
+    PortInfo = 0x00100001,
+    PadData = 0x00100002,
+};
+
+struct Header {
+    u32_le magic{};
+    u16_le protocol_version{};
+    u16_le payload_length{};
+    u32_le crc{};
+    u32_le id{};
+    ///> In the protocol, the type of the packet is not part of the header, but its convenient to
+    ///> include in the header so the callee doesn't have to duplicate the type twice when building
+    ///> the data
+    Type type{};
+};
+static_assert(sizeof(Header) == 20, "UDP Message Header struct has wrong size");
+static_assert(std::is_trivially_copyable_v<Header>, "UDP Message Header is not trivially copyable");
+
+using MacAddress = std::array<u8, 6>;
+constexpr MacAddress EMPTY_MAC_ADDRESS = {0, 0, 0, 0, 0, 0};
+
+#pragma pack(push, 1)
+template <typename T>
+struct Message {
+    Header header{};
+    T data;
+};
+#pragma pack(pop)
+
+template <typename T>
+constexpr Type GetMessageType();
+
+namespace Request {
+
+struct Version {};
+/**
+ * Requests the server to send information about what controllers are plugged into the ports
+ * In citra's case, we only have one controller, so for simplicity's sake, we can just send a
+ * request explicitly for the first controller port and leave it at that. In the future it would be
+ * nice to make this configurable
+ */
+constexpr u32 MAX_PORTS = 4;
+struct PortInfo {
+    u32_le pad_count{}; ///> Number of ports to request data for
+    std::array<u8, MAX_PORTS> port;
+};
+static_assert(std::is_trivially_copyable_v<PortInfo>,
+              "UDP Request PortInfo is not trivially copyable");
+
+/**
+ * Request the latest pad information from the server. If the server hasn't received this message
+ * from the client in a reasonable time frame, the server will stop sending updates. The default
+ * timeout seems to be 5 seconds.
+ */
+struct PadData {
+    enum class Flags : u8 {
+        AllPorts,
+        Id,
+        Mac,
+    };
+    /// Determines which method will be used as a look up for the controller
+    Flags flags{};
+    /// Index of the port of the controller to retrieve data about
+    u8 port_id{};
+    /// Mac address of the controller to retrieve data about
+    MacAddress mac;
+};
+static_assert(sizeof(PadData) == 8, "UDP Request PadData struct has wrong size");
+static_assert(std::is_trivially_copyable_v<PadData>,
+              "UDP Request PadData is not trivially copyable");
+
+/**
+ * Creates a message with the proper header data that can be sent to the server.
+ * @param data Request body to send
+ * @param client_id ID of the udp client (usually not checked on the server)
+ */
+template <typename T>
+Message<T> Create(const T data, const u32 client_id = 0) {
+    boost::crc_32_type crc;
+    Header header{
+        CLIENT_MAGIC, PROTOCOL_VERSION, sizeof(T) + sizeof(Type), 0, client_id, GetMessageType<T>(),
+    };
+    Message<T> message{header, data};
+    crc.process_bytes(&message, sizeof(Message<T>));
+    message.header.crc = crc.checksum();
+    return message;
+}
+} // namespace Request
+
+namespace Response {
+
+struct Version {
+    u16_le version{};
+};
+static_assert(sizeof(Version) == 2, "UDP Response Version struct has wrong size");
+static_assert(std::is_trivially_copyable_v<Version>,
+              "UDP Response Version is not trivially copyable");
+
+struct PortInfo {
+    u8 id{};
+    u8 state{};
+    u8 model{};
+    u8 connection_type{};
+    MacAddress mac;
+    u8 battery{};
+    u8 is_pad_active{};
+};
+static_assert(sizeof(PortInfo) == 12, "UDP Response PortInfo struct has wrong size");
+static_assert(std::is_trivially_copyable_v<PortInfo>,
+              "UDP Response PortInfo is not trivially copyable");
+
+struct TouchPad {
+    u8 is_active{};
+    u8 id{};
+    u16_le x{};
+    u16_le y{};
+};
+static_assert(sizeof(TouchPad) == 6, "UDP Response TouchPad struct has wrong size ");
+
+#pragma pack(push, 1)
+struct PadData {
+    PortInfo info{};
+    u32_le packet_counter{};
+
+    u16_le digital_button{};
+    // The following union isn't trivially copyable but we don't use this input anyway.
+    // union DigitalButton {
+    //     u16_le button;
+    //     BitField<0, 1, u16> button_1;   // Share
+    //     BitField<1, 1, u16> button_2;   // L3
+    //     BitField<2, 1, u16> button_3;   // R3
+    //     BitField<3, 1, u16> button_4;   // Options
+    //     BitField<4, 1, u16> button_5;   // Up
+    //     BitField<5, 1, u16> button_6;   // Right
+    //     BitField<6, 1, u16> button_7;   // Down
+    //     BitField<7, 1, u16> button_8;   // Left
+    //     BitField<8, 1, u16> button_9;   // L2
+    //     BitField<9, 1, u16> button_10;  // R2
+    //     BitField<10, 1, u16> button_11; // L1
+    //     BitField<11, 1, u16> button_12; // R1
+    //     BitField<12, 1, u16> button_13; // Triangle
+    //     BitField<13, 1, u16> button_14; // Circle
+    //     BitField<14, 1, u16> button_15; // Cross
+    //     BitField<15, 1, u16> button_16; // Square
+    // } digital_button;
+
+    u8 home;
+    /// If the device supports a "click" on the touchpad, this will change to 1 when a click happens
+    u8 touch_hard_press{};
+    u8 left_stick_x{};
+    u8 left_stick_y{};
+    u8 right_stick_x{};
+    u8 right_stick_y{};
+
+    struct AnalogButton {
+        u8 button_8{};
+        u8 button_7{};
+        u8 button_6{};
+        u8 button_5{};
+        u8 button_12{};
+        u8 button_11{};
+        u8 button_10{};
+        u8 button_9{};
+        u8 button_16{};
+        u8 button_15{};
+        u8 button_14{};
+        u8 button_13{};
+    } analog_button;
+
+    std::array<TouchPad, 2> touch;
+
+    u64_le motion_timestamp;
+
+    struct Accelerometer {
+        float x{};
+        float y{};
+        float z{};
+    } accel;
+
+    struct Gyroscope {
+        float pitch{};
+        float yaw{};
+        float roll{};
+    } gyro;
+};
+#pragma pack(pop)
+
+static_assert(sizeof(PadData) == 80, "UDP Response PadData struct has wrong size ");
+static_assert(std::is_trivially_copyable_v<PadData>,
+              "UDP Response PadData is not trivially copyable");
+
+static_assert(sizeof(Message<PadData>) == MAX_PACKET_SIZE,
+              "UDP MAX_PACKET_SIZE is no longer larger than Message<PadData>");
+
+static_assert(sizeof(PadData::AnalogButton) == 12,
+              "UDP Response AnalogButton struct has wrong size ");
+static_assert(sizeof(PadData::Accelerometer) == 12,
+              "UDP Response Accelerometer struct has wrong size ");
+static_assert(sizeof(PadData::Gyroscope) == 12, "UDP Response Gyroscope struct has wrong size ");
+
+/**
+ * Create a Response Message from the data
+ * @param data array of bytes sent from the server
+ * @return boost::none if it failed to parse or Type if it succeeded. The client can then safely
+ * copy the data into the appropriate struct for that Type
+ */
+std::optional<Type> Validate(u8* data, std::size_t size);
+
+} // namespace Response
+
+template <>
+constexpr Type GetMessageType<Request::Version>() {
+    return Type::Version;
+}
+template <>
+constexpr Type GetMessageType<Request::PortInfo>() {
+    return Type::PortInfo;
+}
+template <>
+constexpr Type GetMessageType<Request::PadData>() {
+    return Type::PadData;
+}
+template <>
+constexpr Type GetMessageType<Response::Version>() {
+    return Type::Version;
+}
+template <>
+constexpr Type GetMessageType<Response::PortInfo>() {
+    return Type::PortInfo;
+}
+template <>
+constexpr Type GetMessageType<Response::PadData>() {
+    return Type::PadData;
+}
+} // namespace InputCommon::CemuhookUDP

src/input_common/input_engine.cpp

@@ -0,0 +1,364 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "common/logging/log.h"
+#include "common/param_package.h"
+#include "input_common/input_engine.h"
+
+namespace InputCommon {
+
+void InputEngine::PreSetController(const PadIdentifier& identifier) {
+    std::lock_guard lock{mutex};
+    if (!controller_list.contains(identifier)) {
+        controller_list.insert_or_assign(identifier, ControllerData{});
+    }
+}
+
+void InputEngine::PreSetButton(const PadIdentifier& identifier, int button) {
+    std::lock_guard lock{mutex};
+    ControllerData& controller = controller_list.at(identifier);
+    if (!controller.buttons.contains(button)) {
+        controller.buttons.insert_or_assign(button, false);
+    }
+}
+
+void InputEngine::PreSetHatButton(const PadIdentifier& identifier, int button) {
+    std::lock_guard lock{mutex};
+    ControllerData& controller = controller_list.at(identifier);
+    if (!controller.hat_buttons.contains(button)) {
+        controller.hat_buttons.insert_or_assign(button, u8{0});
+    }
+}
+
+void InputEngine::PreSetAxis(const PadIdentifier& identifier, int axis) {
+    std::lock_guard lock{mutex};
+    ControllerData& controller = controller_list.at(identifier);
+    if (!controller.axes.contains(axis)) {
+        controller.axes.insert_or_assign(axis, 0.0f);
+    }
+}
+
+void InputEngine::PreSetMotion(const PadIdentifier& identifier, int motion) {
+    std::lock_guard lock{mutex};
+    ControllerData& controller = controller_list.at(identifier);
+    if (!controller.motions.contains(motion)) {
+        controller.motions.insert_or_assign(motion, BasicMotion{});
+    }
+}
+
+void InputEngine::SetButton(const PadIdentifier& identifier, int button, bool value) {
+    {
+        std::lock_guard lock{mutex};
+        ControllerData& controller = controller_list.at(identifier);
+        if (!configuring) {
+            controller.buttons.insert_or_assign(button, value);
+        }
+    }
+    TriggerOnButtonChange(identifier, button, value);
+}
+
+void InputEngine::SetHatButton(const PadIdentifier& identifier, int button, u8 value) {
+    {
+        std::lock_guard lock{mutex};
+        ControllerData& controller = controller_list.at(identifier);
+        if (!configuring) {
+            controller.hat_buttons.insert_or_assign(button, value);
+        }
+    }
+    TriggerOnHatButtonChange(identifier, button, value);
+}
+
+void InputEngine::SetAxis(const PadIdentifier& identifier, int axis, f32 value) {
+    {
+        std::lock_guard lock{mutex};
+        ControllerData& controller = controller_list.at(identifier);
+        if (!configuring) {
+            controller.axes.insert_or_assign(axis, value);
+        }
+    }
+    TriggerOnAxisChange(identifier, axis, value);
+}
+
+void InputEngine::SetBattery(const PadIdentifier& identifier, BatteryLevel value) {
+    {
+        std::lock_guard lock{mutex};
+        ControllerData& controller = controller_list.at(identifier);
+        if (!configuring) {
+            controller.battery = value;
+        }
+    }
+    TriggerOnBatteryChange(identifier, value);
+}
+
+void InputEngine::SetMotion(const PadIdentifier& identifier, int motion, BasicMotion value) {
+    {
+        std::lock_guard lock{mutex};
+        ControllerData& controller = controller_list.at(identifier);
+        if (!configuring) {
+            controller.motions.insert_or_assign(motion, value);
+        }
+    }
+    TriggerOnMotionChange(identifier, motion, value);
+}
+
+bool InputEngine::GetButton(const PadIdentifier& identifier, int button) const {
+    std::lock_guard lock{mutex};
+    if (!controller_list.contains(identifier)) {
+        LOG_ERROR(Input, "Invalid identifier guid={}, pad={}, port={}", identifier.guid.Format(),
+                  identifier.pad, identifier.port);
+        return false;
+    }
+    ControllerData controller = controller_list.at(identifier);
+    if (!controller.buttons.contains(button)) {
+        LOG_ERROR(Input, "Invalid button {}", button);
+        return false;
+    }
+    return controller.buttons.at(button);
+}
+
+bool InputEngine::GetHatButton(const PadIdentifier& identifier, int button, u8 direction) const {
+    std::lock_guard lock{mutex};
+    if (!controller_list.contains(identifier)) {
+        LOG_ERROR(Input, "Invalid identifier guid={}, pad={}, port={}", identifier.guid.Format(),
+                  identifier.pad, identifier.port);
+        return false;
+    }
+    ControllerData controller = controller_list.at(identifier);
+    if (!controller.hat_buttons.contains(button)) {
+        LOG_ERROR(Input, "Invalid hat button {}", button);
+        return false;
+    }
+    return (controller.hat_buttons.at(button) & direction) != 0;
+}
+
+f32 InputEngine::GetAxis(const PadIdentifier& identifier, int axis) const {
+    std::lock_guard lock{mutex};
+    if (!controller_list.contains(identifier)) {
+        LOG_ERROR(Input, "Invalid identifier guid={}, pad={}, port={}", identifier.guid.Format(),
+                  identifier.pad, identifier.port);
+        return 0.0f;
+    }
+    ControllerData controller = controller_list.at(identifier);
+    if (!controller.axes.contains(axis)) {
+        LOG_ERROR(Input, "Invalid axis {}", axis);
+        return 0.0f;
+    }
+    return controller.axes.at(axis);
+}
+
+BatteryLevel InputEngine::GetBattery(const PadIdentifier& identifier) const {
+    std::lock_guard lock{mutex};
+    if (!controller_list.contains(identifier)) {
+        LOG_ERROR(Input, "Invalid identifier guid={}, pad={}, port={}", identifier.guid.Format(),
+                  identifier.pad, identifier.port);
+        return BatteryLevel::Charging;
+    }
+    ControllerData controller = controller_list.at(identifier);
+    return controller.battery;
+}
+
+BasicMotion InputEngine::GetMotion(const PadIdentifier& identifier, int motion) const {
+    std::lock_guard lock{mutex};
+    if (!controller_list.contains(identifier)) {
+        LOG_ERROR(Input, "Invalid identifier guid={}, pad={}, port={}", identifier.guid.Format(),
+                  identifier.pad, identifier.port);
+        return {};
+    }
+    ControllerData controller = controller_list.at(identifier);
+    return controller.motions.at(motion);
+}
+
+void InputEngine::ResetButtonState() {
+    for (std::pair<PadIdentifier, ControllerData> controller : controller_list) {
+        for (std::pair<int, bool> button : controller.second.buttons) {
+            SetButton(controller.first, button.first, false);
+        }
+        for (std::pair<int, bool> button : controller.second.hat_buttons) {
+            SetHatButton(controller.first, button.first, false);
+        }
+    }
+}
+
+void InputEngine::ResetAnalogState() {
+    for (std::pair<PadIdentifier, ControllerData> controller : controller_list) {
+        for (std::pair<int, float> axis : controller.second.axes) {
+            SetAxis(controller.first, axis.first, 0.0);
+        }
+    }
+}
+
+void InputEngine::TriggerOnButtonChange(const PadIdentifier& identifier, int button, bool value) {
+    std::lock_guard lock{mutex_callback};
+    for (const std::pair<int, InputIdentifier> poller_pair : callback_list) {
+        const InputIdentifier& poller = poller_pair.second;
+        if (!IsInputIdentifierEqual(poller, identifier, EngineInputType::Button, button)) {
+            continue;
+        }
+        if (poller.callback.on_change) {
+            poller.callback.on_change();
+        }
+    }
+    if (!configuring || !mapping_callback.on_data) {
+        return;
+    }
+
+    PreSetButton(identifier, button);
+    if (value == GetButton(identifier, button)) {
+        return;
+    }
+    mapping_callback.on_data(MappingData{
+        .engine = GetEngineName(),
+        .pad = identifier,
+        .type = EngineInputType::Button,
+        .index = button,
+        .button_value = value,
+    });
+}
+
+void InputEngine::TriggerOnHatButtonChange(const PadIdentifier& identifier, int button, u8 value) {
+    std::lock_guard lock{mutex_callback};
+    for (const std::pair<int, InputIdentifier> poller_pair : callback_list) {
+        const InputIdentifier& poller = poller_pair.second;
+        if (!IsInputIdentifierEqual(poller, identifier, EngineInputType::HatButton, button)) {
+            continue;
+        }
+        if (poller.callback.on_change) {
+            poller.callback.on_change();
+        }
+    }
+    if (!configuring || !mapping_callback.on_data) {
+        return;
+    }
+    for (std::size_t index = 1; index < 0xff; index <<= 1) {
+        bool button_value = (value & index) != 0;
+        if (button_value == GetHatButton(identifier, button, static_cast<u8>(index))) {
+            continue;
+        }
+        mapping_callback.on_data(MappingData{
+            .engine = GetEngineName(),
+            .pad = identifier,
+            .type = EngineInputType::HatButton,
+            .index = button,
+            .hat_name = GetHatButtonName(static_cast<u8>(index)),
+        });
+    }
+}
+
+void InputEngine::TriggerOnAxisChange(const PadIdentifier& identifier, int axis, f32 value) {
+    std::lock_guard lock{mutex_callback};
+    for (const std::pair<int, InputIdentifier> poller_pair : callback_list) {
+        const InputIdentifier& poller = poller_pair.second;
+        if (!IsInputIdentifierEqual(poller, identifier, EngineInputType::Analog, axis)) {
+            continue;
+        }
+        if (poller.callback.on_change) {
+            poller.callback.on_change();
+        }
+    }
+    if (!configuring || !mapping_callback.on_data) {
+        return;
+    }
+    if (std::abs(value - GetAxis(identifier, axis)) < 0.5f) {
+        return;
+    }
+    mapping_callback.on_data(MappingData{
+        .engine = GetEngineName(),
+        .pad = identifier,
+        .type = EngineInputType::Analog,
+        .index = axis,
+        .axis_value = value,
+    });
+}
+
+void InputEngine::TriggerOnBatteryChange(const PadIdentifier& identifier,
+                                         [[maybe_unused]] BatteryLevel value) {
+    std::lock_guard lock{mutex_callback};
+    for (const std::pair<int, InputIdentifier> poller_pair : callback_list) {
+        const InputIdentifier& poller = poller_pair.second;
+        if (!IsInputIdentifierEqual(poller, identifier, EngineInputType::Battery, 0)) {
+            continue;
+        }
+        if (poller.callback.on_change) {
+            poller.callback.on_change();
+        }
+    }
+}
+
+void InputEngine::TriggerOnMotionChange(const PadIdentifier& identifier, int motion,
+                                        BasicMotion value) {
+    std::lock_guard lock{mutex_callback};
+    for (const std::pair<int, InputIdentifier> poller_pair : callback_list) {
+        const InputIdentifier& poller = poller_pair.second;
+        if (!IsInputIdentifierEqual(poller, identifier, EngineInputType::Motion, motion)) {
+            continue;
+        }
+        if (poller.callback.on_change) {
+            poller.callback.on_change();
+        }
+    }
+    if (!configuring || !mapping_callback.on_data) {
+        return;
+    }
+    if (std::abs(value.gyro_x) < 1.0f && std::abs(value.gyro_y) < 1.0f &&
+        std::abs(value.gyro_z) < 1.0f) {
+        return;
+    }
+    mapping_callback.on_data(MappingData{
+        .engine = GetEngineName(),
+        .pad = identifier,
+        .type = EngineInputType::Motion,
+        .index = motion,
+        .motion_value = value,
+    });
+}
+
+bool InputEngine::IsInputIdentifierEqual(const InputIdentifier& input_identifier,
+                                         const PadIdentifier& identifier, EngineInputType type,
+                                         int index) const {
+    if (input_identifier.type != type) {
+        return false;
+    }
+    if (input_identifier.index != index) {
+        return false;
+    }
+    if (input_identifier.identifier != identifier) {
+        return false;
+    }
+    return true;
+}
+
+void InputEngine::BeginConfiguration() {
+    configuring = true;
+}
+
+void InputEngine::EndConfiguration() {
+    configuring = false;
+}
+
+const std::string& InputEngine::GetEngineName() const {
+    return input_engine;
+}
+
+int InputEngine::SetCallback(InputIdentifier input_identifier) {
+    std::lock_guard lock{mutex_callback};
+    callback_list.insert_or_assign(last_callback_key, input_identifier);
+    return last_callback_key++;
+}
+
+void InputEngine::SetMappingCallback(MappingCallback callback) {
+    std::lock_guard lock{mutex_callback};
+    mapping_callback = std::move(callback);
+}
+
+void InputEngine::DeleteCallback(int key) {
+    std::lock_guard lock{mutex_callback};
+    const auto& iterator = callback_list.find(key);
+    if (iterator == callback_list.end()) {
+        LOG_ERROR(Input, "Tried to delete non-existent callback {}", key);
+        return;
+    }
+    callback_list.erase(iterator);
+}
+
+} // namespace InputCommon

src/input_common/input_engine.h

@@ -0,0 +1,231 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include <functional>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/uuid.h"
+#include "input_common/main.h"
+
+// Pad Identifier of data source
+struct PadIdentifier {
+    Common::UUID guid{};
+    std::size_t port{};
+    std::size_t pad{};
+
+    friend constexpr bool operator==(const PadIdentifier&, const PadIdentifier&) = default;
+};
+
+// Basic motion data containing data from the sensors and a timestamp in microsecons
+struct BasicMotion {
+    float gyro_x;
+    float gyro_y;
+    float gyro_z;
+    float accel_x;
+    float accel_y;
+    float accel_z;
+    u64 delta_timestamp;
+};
+
+// Stages of a battery charge
+enum class BatteryLevel {
+    Empty,
+    Critical,
+    Low,
+    Medium,
+    Full,
+    Charging,
+};
+
+// Types of input that are stored in the engine
+enum class EngineInputType {
+    None,
+    Button,
+    HatButton,
+    Analog,
+    Motion,
+    Battery,
+};
+
+namespace std {
+// Hash used to create lists from PadIdentifier data
+template <>
+struct hash<PadIdentifier> {
+    size_t operator()(const PadIdentifier& pad_id) const noexcept {
+        u64 hash_value = pad_id.guid.uuid[1] ^ pad_id.guid.uuid[0];
+        hash_value ^= (static_cast<u64>(pad_id.port) << 32);
+        hash_value ^= static_cast<u64>(pad_id.pad);
+        return static_cast<size_t>(hash_value);
+    }
+};
+
+} // namespace std
+
+namespace InputCommon {
+
+// Data from the engine and device needed for creating a ParamPackage
+struct MappingData {
+    std::string engine{};
+    PadIdentifier pad{};
+    EngineInputType type{};
+    int index{};
+    bool button_value{};
+    std::string hat_name{};
+    f32 axis_value{};
+    BasicMotion motion_value{};
+};
+
+// Triggered if data changed on the controller
+struct UpdateCallback {
+    std::function<void()> on_change;
+};
+
+// Triggered if data changed on the controller and the engine is on configuring mode
+struct MappingCallback {
+    std::function<void(MappingData)> on_data;
+};
+
+// Input Identifier of data source
+struct InputIdentifier {
+    PadIdentifier identifier;
+    EngineInputType type;
+    int index;
+    UpdateCallback callback;
+};
+
+class InputEngine {
+public:
+    explicit InputEngine(const std::string& input_engine_) : input_engine(input_engine_) {
+        callback_list.clear();
+    }
+
+    virtual ~InputEngine() = default;
+
+    // Enable configuring mode for mapping
+    void BeginConfiguration();
+
+    // Disable configuring mode for mapping
+    void EndConfiguration();
+
+    // Sets a led pattern for a controller
+    virtual void SetLeds([[maybe_unused]] const PadIdentifier& identifier,
+                         [[maybe_unused]] const Common::Input::LedStatus led_status) {
+        return;
+    }
+
+    // Sets rumble to a controller
+    virtual Common::Input::VibrationError SetRumble(
+        [[maybe_unused]] const PadIdentifier& identifier,
+        [[maybe_unused]] const Common::Input::VibrationStatus vibration) {
+        return Common::Input::VibrationError::NotSupported;
+    }
+
+    // Sets polling mode to a controller
+    virtual Common::Input::PollingError SetPollingMode(
+        [[maybe_unused]] const PadIdentifier& identifier,
+        [[maybe_unused]] const Common::Input::PollingMode vibration) {
+        return Common::Input::PollingError::NotSupported;
+    }
+
+    // Returns the engine name
+    [[nodiscard]] const std::string& GetEngineName() const;
+
+    /// Used for automapping features
+    virtual std::vector<Common::ParamPackage> GetInputDevices() const {
+        return {};
+    };
+
+    /// Retrieves the button mappings for the given device
+    virtual InputCommon::ButtonMapping GetButtonMappingForDevice(
+        [[maybe_unused]] const Common::ParamPackage& params) {
+        return {};
+    };
+
+    /// Retrieves the analog mappings for the given device
+    virtual InputCommon::AnalogMapping GetAnalogMappingForDevice(
+        [[maybe_unused]] const Common::ParamPackage& params) {
+        return {};
+    };
+
+    /// Retrieves the motion mappings for the given device
+    virtual InputCommon::MotionMapping GetMotionMappingForDevice(
+        [[maybe_unused]] const Common::ParamPackage& params) {
+        return {};
+    };
+
+    /// Retrieves the name of the given input.
+    virtual std::string GetUIName([[maybe_unused]] const Common::ParamPackage& params) const {
+        return GetEngineName();
+    };
+
+    /// Retrieves the index number of the given hat button direction
+    virtual u8 GetHatButtonId([[maybe_unused]] const std::string direction_name) const {
+        return 0;
+    };
+
+    void PreSetController(const PadIdentifier& identifier);
+    void PreSetButton(const PadIdentifier& identifier, int button);
+    void PreSetHatButton(const PadIdentifier& identifier, int button);
+    void PreSetAxis(const PadIdentifier& identifier, int axis);
+    void PreSetMotion(const PadIdentifier& identifier, int motion);
+    void ResetButtonState();
+    void ResetAnalogState();
+
+    bool GetButton(const PadIdentifier& identifier, int button) const;
+    bool GetHatButton(const PadIdentifier& identifier, int button, u8 direction) const;
+    f32 GetAxis(const PadIdentifier& identifier, int axis) const;
+    BatteryLevel GetBattery(const PadIdentifier& identifier) const;
+    BasicMotion GetMotion(const PadIdentifier& identifier, int motion) const;
+
+    int SetCallback(InputIdentifier input_identifier);
+    void SetMappingCallback(MappingCallback callback);
+    void DeleteCallback(int key);
+
+protected:
+    void SetButton(const PadIdentifier& identifier, int button, bool value);
+    void SetHatButton(const PadIdentifier& identifier, int button, u8 value);
+    void SetAxis(const PadIdentifier& identifier, int axis, f32 value);
+    void SetBattery(const PadIdentifier& identifier, BatteryLevel value);
+    void SetMotion(const PadIdentifier& identifier, int motion, BasicMotion value);
+
+    virtual std::string GetHatButtonName([[maybe_unused]] u8 direction_value) const {
+        return "Unknown";
+    }
+
+private:
+    struct ControllerData {
+        std::unordered_map<int, bool> buttons;
+        std::unordered_map<int, u8> hat_buttons;
+        std::unordered_map<int, float> axes;
+        std::unordered_map<int, BasicMotion> motions;
+        BatteryLevel battery;
+    };
+
+    void TriggerOnButtonChange(const PadIdentifier& identifier, int button, bool value);
+    void TriggerOnHatButtonChange(const PadIdentifier& identifier, int button, u8 value);
+    void TriggerOnAxisChange(const PadIdentifier& identifier, int button, f32 value);
+    void TriggerOnBatteryChange(const PadIdentifier& identifier, BatteryLevel value);
+    void TriggerOnMotionChange(const PadIdentifier& identifier, int motion, BasicMotion value);
+
+    bool IsInputIdentifierEqual(const InputIdentifier& input_identifier,
+                                const PadIdentifier& identifier, EngineInputType type,
+                                int index) const;
+
+    mutable std::mutex mutex;
+    mutable std::mutex mutex_callback;
+    bool configuring{false};
+    const std::string input_engine;
+    int last_callback_key = 0;
+    std::unordered_map<PadIdentifier, ControllerData> controller_list;
+    std::unordered_map<int, InputIdentifier> callback_list;
+    MappingCallback mapping_callback;
+};
+
+} // namespace InputCommon

src/input_common/input_mapping.cpp

@@ -0,0 +1,171 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "common/common_types.h"
+#include "input_common/input_engine.h"
+#include "input_common/input_mapping.h"
+
+namespace InputCommon {
+
+MappingFactory::MappingFactory() {}
+
+void MappingFactory::BeginMapping(Polling::InputType type) {
+    is_enabled = true;
+    input_type = type;
+    input_queue.Clear();
+    first_axis = -1;
+    second_axis = -1;
+}
+
+[[nodiscard]] const Common::ParamPackage MappingFactory::GetNextInput() {
+    Common::ParamPackage input;
+    input_queue.Pop(input);
+    return input;
+}
+
+void MappingFactory::RegisterInput(const MappingData& data) {
+    if (!is_enabled) {
+        return;
+    }
+    switch (input_type) {
+    case Polling::InputType::Button:
+        RegisterButton(data);
+        return;
+    case Polling::InputType::Stick:
+        RegisterStick(data);
+        return;
+    case Polling::InputType::Motion:
+        RegisterMotion(data);
+        return;
+    default:
+        return;
+    }
+}
+
+void MappingFactory::StopMapping() {
+    is_enabled = false;
+    input_type = Polling::InputType::None;
+    input_queue.Clear();
+}
+
+void MappingFactory::RegisterButton(const MappingData& data) {
+    Common::ParamPackage new_input;
+    new_input.Set("engine", data.engine);
+    if (data.pad.guid != Common::UUID{}) {
+        new_input.Set("guid", data.pad.guid.Format());
+    }
+    new_input.Set("port", static_cast<int>(data.pad.port));
+    new_input.Set("pad", static_cast<int>(data.pad.pad));
+    switch (data.type) {
+    case EngineInputType::Button:
+        // Workaround for old compatibility
+        if (data.engine == "keyboard") {
+            new_input.Set("code", data.index);
+            break;
+        }
+        new_input.Set("button", data.index);
+        break;
+    case EngineInputType::HatButton:
+        new_input.Set("hat", data.index);
+        new_input.Set("direction", data.hat_name);
+        break;
+    case EngineInputType::Analog:
+        new_input.Set("axis", data.index);
+        new_input.Set("threshold", 0.5f);
+        break;
+    default:
+        return;
+    }
+    input_queue.Push(new_input);
+}
+
+void MappingFactory::RegisterStick(const MappingData& data) {
+    Common::ParamPackage new_input;
+    new_input.Set("engine", data.engine);
+    if (data.pad.guid != Common::UUID{}) {
+        new_input.Set("guid", data.pad.guid.Format());
+    }
+    new_input.Set("port", static_cast<int>(data.pad.port));
+    new_input.Set("pad", static_cast<int>(data.pad.pad));
+
+    // If engine is mouse map the mouse position as a joystick
+    if (data.engine == "mouse") {
+        new_input.Set("axis_x", 0);
+        new_input.Set("axis_y", 1);
+        new_input.Set("threshold", 0.5f);
+        new_input.Set("range", 1.0f);
+        new_input.Set("deadzone", 0.0f);
+        input_queue.Push(new_input);
+        return;
+    }
+
+    switch (data.type) {
+    case EngineInputType::Button:
+    case EngineInputType::HatButton:
+        RegisterButton(data);
+        return;
+    case EngineInputType::Analog:
+        if (first_axis == data.index) {
+            return;
+        }
+        if (first_axis == -1) {
+            first_axis = data.index;
+            return;
+        }
+        new_input.Set("axis_x", first_axis);
+        new_input.Set("axis_y", data.index);
+        new_input.Set("threshold", 0.5f);
+        new_input.Set("range", 0.95f);
+        new_input.Set("deadzone", 0.15f);
+        break;
+    default:
+        return;
+    }
+    input_queue.Push(new_input);
+}
+
+void MappingFactory::RegisterMotion(const MappingData& data) {
+    Common::ParamPackage new_input;
+    new_input.Set("engine", data.engine);
+    if (data.pad.guid != Common::UUID{}) {
+        new_input.Set("guid", data.pad.guid.Format());
+    }
+    new_input.Set("port", static_cast<int>(data.pad.port));
+    new_input.Set("pad", static_cast<int>(data.pad.pad));
+    switch (data.type) {
+    case EngineInputType::Button:
+    case EngineInputType::HatButton:
+        RegisterButton(data);
+        return;
+    case EngineInputType::Analog:
+        if (first_axis == data.index) {
+            return;
+        }
+        if (second_axis == data.index) {
+            return;
+        }
+        if (first_axis == -1) {
+            first_axis = data.index;
+            return;
+        }
+        if (second_axis == -1) {
+            second_axis = data.index;
+            return;
+        }
+        new_input.Set("axis_x", first_axis);
+        new_input.Set("axis_y", second_axis);
+        new_input.Set("axis_z", data.index);
+        new_input.Set("range", 1.0f);
+        new_input.Set("deadzone", 0.20f);
+        break;
+    case EngineInputType::Motion:
+        new_input.Set("motion", data.index);
+        break;
+    default:
+        return;
+    }
+    input_queue.Push(new_input);
+}
+
+} // namespace InputCommon

src/input_common/input_mapping.h

@@ -0,0 +1,76 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+#include "common/threadsafe_queue.h"
+
+namespace InputCommon {
+class InputEngine;
+struct MappingData;
+
+class MappingFactory {
+public:
+    MappingFactory();
+
+    /**
+     * Resets all varables to beggin the mapping process
+     * @param "type": type of input desired to be returned
+     */
+    void BeginMapping(Polling::InputType type);
+
+    /// Returns an input event with mapping information from the input_queue
+    [[nodiscard]] const Common::ParamPackage GetNextInput();
+
+    /**
+     * Registers mapping input data from the driver
+     * @param "data": An struct containing all the information needed to create a proper
+     * ParamPackage
+     */
+    void RegisterInput(const MappingData& data);
+
+    /// Stop polling from all backends
+    void StopMapping();
+
+private:
+    /**
+     * If provided data satisfies the requeriments it will push an element to the input_queue
+     * Supported input:
+     *     - Button: Creates a basic button ParamPackage
+     *     - HatButton: Creates a basic hat button ParamPackage
+     *     - Analog: Creates a basic analog ParamPackage
+     * @param "data": An struct containing all the information needed to create a proper
+     * ParamPackage
+     */
+    void RegisterButton(const MappingData& data);
+
+    /**
+     * If provided data satisfies the requeriments it will push an element to the input_queue
+     * Supported input:
+     *     - Button, HatButton: Pass the data to RegisterButton
+     *     - Analog: Stores the first axis and on the second axis creates a basic stick ParamPackage
+     * @param "data": An struct containing all the information needed to create a proper
+     * ParamPackage
+     */
+    void RegisterStick(const MappingData& data);
+
+    /**
+     * If provided data satisfies the requeriments it will push an element to the input_queue
+     * Supported input:
+     *     - Button, HatButton: Pass the data to RegisterButton
+     *     - Analog: Stores the first two axis and on the third axis creates a basic Motion
+     * ParamPackage
+     *     - Motion: Creates a basic Motion ParamPackage
+     * @param "data": An struct containing all the information needed to create a proper
+     * ParamPackage
+     */
+    void RegisterMotion(const MappingData& data);
+
+    Common::SPSCQueue<Common::ParamPackage> input_queue;
+    Polling::InputType input_type{Polling::InputType::None};
+    bool is_enabled{};
+    int first_axis = -1;
+    int second_axis = -1;
+};
+
+} // namespace InputCommon

src/input_common/input_poller.cpp

@@ -0,0 +1,962 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "common/common_types.h"
+#include "common/input.h"
+
+#include "input_common/input_engine.h"
+#include "input_common/input_poller.h"
+
+namespace InputCommon {
+
+class DummyInput final : public Common::Input::InputDevice {
+public:
+    explicit DummyInput() {}
+    ~DummyInput() {}
+};
+
+class InputFromButton final : public Common::Input::InputDevice {
+public:
+    explicit InputFromButton(PadIdentifier identifier_, int button_, bool toggle_, bool inverted_,
+                             InputEngine* input_engine_)
+        : identifier(identifier_), button(button_), toggle(toggle_), inverted(inverted_),
+          input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Button,
+            .index = button,
+            .callback = engine_callback,
+        };
+        last_button_value = false;
+        callback_key = input_engine->SetCallback(input_identifier);
+    }
+
+    ~InputFromButton() {
+        input_engine->DeleteCallback(callback_key);
+    }
+
+    Common::Input::ButtonStatus GetStatus() const {
+        return {
+            .value = input_engine->GetButton(identifier, button),
+            .inverted = inverted,
+            .toggle = toggle,
+        };
+    }
+
+    void ForceUpdate() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Button,
+            .button_status = GetStatus(),
+        };
+
+        last_button_value = status.button_status.value;
+        TriggerOnChange(status);
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Button,
+            .button_status = GetStatus(),
+        };
+
+        if (status.button_status.value != last_button_value) {
+            last_button_value = status.button_status.value;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    const PadIdentifier identifier;
+    const int button;
+    const bool toggle;
+    const bool inverted;
+    int callback_key;
+    bool last_button_value;
+    InputEngine* input_engine;
+};
+
+class InputFromHatButton final : public Common::Input::InputDevice {
+public:
+    explicit InputFromHatButton(PadIdentifier identifier_, int button_, u8 direction_, bool toggle_,
+                                bool inverted_, InputEngine* input_engine_)
+        : identifier(identifier_), button(button_), direction(direction_), toggle(toggle_),
+          inverted(inverted_), input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::HatButton,
+            .index = button,
+            .callback = engine_callback,
+        };
+        last_button_value = false;
+        callback_key = input_engine->SetCallback(input_identifier);
+    }
+
+    ~InputFromHatButton() {
+        input_engine->DeleteCallback(callback_key);
+    }
+
+    Common::Input::ButtonStatus GetStatus() const {
+        return {
+            .value = input_engine->GetHatButton(identifier, button, direction),
+            .inverted = inverted,
+            .toggle = toggle,
+        };
+    }
+
+    void ForceUpdate() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Button,
+            .button_status = GetStatus(),
+        };
+
+        last_button_value = status.button_status.value;
+        TriggerOnChange(status);
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Button,
+            .button_status = GetStatus(),
+        };
+
+        if (status.button_status.value != last_button_value) {
+            last_button_value = status.button_status.value;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    const PadIdentifier identifier;
+    const int button;
+    const u8 direction;
+    const bool toggle;
+    const bool inverted;
+    int callback_key;
+    bool last_button_value;
+    InputEngine* input_engine;
+};
+
+class InputFromStick final : public Common::Input::InputDevice {
+public:
+    explicit InputFromStick(PadIdentifier identifier_, int axis_x_, int axis_y_,
+                            Common::Input::AnalogProperties properties_x_,
+                            Common::Input::AnalogProperties properties_y_,
+                            InputEngine* input_engine_)
+        : identifier(identifier_), axis_x(axis_x_), axis_y(axis_y_), properties_x(properties_x_),
+          properties_y(properties_y_), input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier x_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis_x,
+            .callback = engine_callback,
+        };
+        const InputIdentifier y_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis_y,
+            .callback = engine_callback,
+        };
+        last_axis_x_value = 0.0f;
+        last_axis_y_value = 0.0f;
+        callback_key_x = input_engine->SetCallback(x_input_identifier);
+        callback_key_y = input_engine->SetCallback(y_input_identifier);
+    }
+
+    ~InputFromStick() {
+        input_engine->DeleteCallback(callback_key_x);
+        input_engine->DeleteCallback(callback_key_y);
+    }
+
+    Common::Input::StickStatus GetStatus() const {
+        Common::Input::StickStatus status;
+        status.x = {
+            .raw_value = input_engine->GetAxis(identifier, axis_x),
+            .properties = properties_x,
+        };
+        status.y = {
+            .raw_value = input_engine->GetAxis(identifier, axis_y),
+            .properties = properties_y,
+        };
+        return status;
+    }
+
+    void ForceUpdate() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Stick,
+            .stick_status = GetStatus(),
+        };
+
+        last_axis_x_value = status.stick_status.x.raw_value;
+        last_axis_y_value = status.stick_status.y.raw_value;
+        TriggerOnChange(status);
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Stick,
+            .stick_status = GetStatus(),
+        };
+
+        if (status.stick_status.x.raw_value != last_axis_x_value ||
+            status.stick_status.y.raw_value != last_axis_y_value) {
+            last_axis_x_value = status.stick_status.x.raw_value;
+            last_axis_y_value = status.stick_status.y.raw_value;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    const PadIdentifier identifier;
+    const int axis_x;
+    const int axis_y;
+    const Common::Input::AnalogProperties properties_x;
+    const Common::Input::AnalogProperties properties_y;
+    int callback_key_x;
+    int callback_key_y;
+    float last_axis_x_value;
+    float last_axis_y_value;
+    InputEngine* input_engine;
+};
+
+class InputFromTouch final : public Common::Input::InputDevice {
+public:
+    explicit InputFromTouch(PadIdentifier identifier_, int touch_id_, int button_, bool toggle_,
+                            bool inverted_, int axis_x_, int axis_y_,
+                            Common::Input::AnalogProperties properties_x_,
+                            Common::Input::AnalogProperties properties_y_,
+                            InputEngine* input_engine_)
+        : identifier(identifier_), touch_id(touch_id_), button(button_), toggle(toggle_),
+          inverted(inverted_), axis_x(axis_x_), axis_y(axis_y_), properties_x(properties_x_),
+          properties_y(properties_y_), input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier button_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Button,
+            .index = button,
+            .callback = engine_callback,
+        };
+        const InputIdentifier x_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis_x,
+            .callback = engine_callback,
+        };
+        const InputIdentifier y_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis_y,
+            .callback = engine_callback,
+        };
+        last_axis_x_value = 0.0f;
+        last_axis_y_value = 0.0f;
+        last_button_value = false;
+        callback_key_button = input_engine->SetCallback(button_input_identifier);
+        callback_key_x = input_engine->SetCallback(x_input_identifier);
+        callback_key_y = input_engine->SetCallback(y_input_identifier);
+    }
+
+    ~InputFromTouch() {
+        input_engine->DeleteCallback(callback_key_button);
+        input_engine->DeleteCallback(callback_key_x);
+        input_engine->DeleteCallback(callback_key_y);
+    }
+
+    Common::Input::TouchStatus GetStatus() const {
+        Common::Input::TouchStatus status;
+        status.id = touch_id;
+        status.pressed = {
+            .value = input_engine->GetButton(identifier, button),
+            .inverted = inverted,
+            .toggle = toggle,
+        };
+        status.x = {
+            .raw_value = input_engine->GetAxis(identifier, axis_x),
+            .properties = properties_x,
+        };
+        status.y = {
+            .raw_value = input_engine->GetAxis(identifier, axis_y),
+            .properties = properties_y,
+        };
+        return status;
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Touch,
+            .touch_status = GetStatus(),
+        };
+
+        if (status.touch_status.x.raw_value != last_axis_x_value ||
+            status.touch_status.y.raw_value != last_axis_y_value ||
+            status.touch_status.pressed.value != last_button_value) {
+            last_axis_x_value = status.touch_status.x.raw_value;
+            last_axis_y_value = status.touch_status.y.raw_value;
+            last_button_value = status.touch_status.pressed.value;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    const PadIdentifier identifier;
+    const int touch_id;
+    const int button;
+    const bool toggle;
+    const bool inverted;
+    const int axis_x;
+    const int axis_y;
+    const Common::Input::AnalogProperties properties_x;
+    const Common::Input::AnalogProperties properties_y;
+    int callback_key_button;
+    int callback_key_x;
+    int callback_key_y;
+    bool last_button_value;
+    float last_axis_x_value;
+    float last_axis_y_value;
+    InputEngine* input_engine;
+};
+
+class InputFromTrigger final : public Common::Input::InputDevice {
+public:
+    explicit InputFromTrigger(PadIdentifier identifier_, int button_, bool toggle_, bool inverted_,
+                              int axis_, Common::Input::AnalogProperties properties_,
+                              InputEngine* input_engine_)
+        : identifier(identifier_), button(button_), toggle(toggle_), inverted(inverted_),
+          axis(axis_), properties(properties_), input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier button_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Button,
+            .index = button,
+            .callback = engine_callback,
+        };
+        const InputIdentifier axis_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis,
+            .callback = engine_callback,
+        };
+        last_axis_value = 0.0f;
+        last_button_value = false;
+        callback_key_button = input_engine->SetCallback(button_input_identifier);
+        axis_callback_key = input_engine->SetCallback(axis_input_identifier);
+    }
+
+    ~InputFromTrigger() {
+        input_engine->DeleteCallback(callback_key_button);
+        input_engine->DeleteCallback(axis_callback_key);
+    }
+
+    Common::Input::TriggerStatus GetStatus() const {
+        const Common::Input::AnalogStatus analog_status{
+            .raw_value = input_engine->GetAxis(identifier, axis),
+            .properties = properties,
+        };
+        const Common::Input::ButtonStatus button_status{
+            .value = input_engine->GetButton(identifier, button),
+            .inverted = inverted,
+            .toggle = toggle,
+        };
+        return {
+            .analog = analog_status,
+            .pressed = button_status,
+        };
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Trigger,
+            .trigger_status = GetStatus(),
+        };
+
+        if (status.trigger_status.analog.raw_value != last_axis_value ||
+            status.trigger_status.pressed.value != last_button_value) {
+            last_axis_value = status.trigger_status.analog.raw_value;
+            last_button_value = status.trigger_status.pressed.value;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    const PadIdentifier identifier;
+    const int button;
+    const bool toggle;
+    const bool inverted;
+    const int axis;
+    const Common::Input::AnalogProperties properties;
+    int callback_key_button;
+    int axis_callback_key;
+    bool last_button_value;
+    float last_axis_value;
+    InputEngine* input_engine;
+};
+
+class InputFromAnalog final : public Common::Input::InputDevice {
+public:
+    explicit InputFromAnalog(PadIdentifier identifier_, int axis_,
+                             Common::Input::AnalogProperties properties_,
+                             InputEngine* input_engine_)
+        : identifier(identifier_), axis(axis_), properties(properties_),
+          input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis,
+            .callback = engine_callback,
+        };
+        last_axis_value = 0.0f;
+        callback_key = input_engine->SetCallback(input_identifier);
+    }
+
+    ~InputFromAnalog() {
+        input_engine->DeleteCallback(callback_key);
+    }
+
+    Common::Input::AnalogStatus GetStatus() const {
+        return {
+            .raw_value = input_engine->GetAxis(identifier, axis),
+            .properties = properties,
+        };
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Analog,
+            .analog_status = GetStatus(),
+        };
+
+        if (status.analog_status.raw_value != last_axis_value) {
+            last_axis_value = status.analog_status.raw_value;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    const PadIdentifier identifier;
+    const int axis;
+    const Common::Input::AnalogProperties properties;
+    int callback_key;
+    float last_axis_value;
+    InputEngine* input_engine;
+};
+
+class InputFromBattery final : public Common::Input::InputDevice {
+public:
+    explicit InputFromBattery(PadIdentifier identifier_, InputEngine* input_engine_)
+        : identifier(identifier_), input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Battery,
+            .index = 0,
+            .callback = engine_callback,
+        };
+        last_battery_value = Common::Input::BatteryStatus::Charging;
+        callback_key = input_engine->SetCallback(input_identifier);
+    }
+
+    ~InputFromBattery() {
+        input_engine->DeleteCallback(callback_key);
+    }
+
+    Common::Input::BatteryStatus GetStatus() const {
+        return static_cast<Common::Input::BatteryLevel>(input_engine->GetBattery(identifier));
+    }
+
+    void ForceUpdate() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Battery,
+            .battery_status = GetStatus(),
+        };
+
+        last_battery_value = status.battery_status;
+        TriggerOnChange(status);
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Battery,
+            .battery_status = GetStatus(),
+        };
+
+        if (status.battery_status != last_battery_value) {
+            last_battery_value = status.battery_status;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    const PadIdentifier identifier;
+    int callback_key;
+    Common::Input::BatteryStatus last_battery_value;
+    InputEngine* input_engine;
+};
+
+class InputFromMotion final : public Common::Input::InputDevice {
+public:
+    explicit InputFromMotion(PadIdentifier identifier_, int motion_sensor_,
+                             InputEngine* input_engine_)
+        : identifier(identifier_), motion_sensor(motion_sensor_), input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Motion,
+            .index = motion_sensor,
+            .callback = engine_callback,
+        };
+        callback_key = input_engine->SetCallback(input_identifier);
+    }
+
+    ~InputFromMotion() {
+        input_engine->DeleteCallback(callback_key);
+    }
+
+    Common::Input::MotionStatus GetStatus() const {
+        const auto basic_motion = input_engine->GetMotion(identifier, motion_sensor);
+        Common::Input::MotionStatus status{};
+        const Common::Input::AnalogProperties properties = {
+            .deadzone = 0.001f,
+            .range = 1.0f,
+            .offset = 0.0f,
+        };
+        status.accel.x = {.raw_value = basic_motion.accel_x, .properties = properties};
+        status.accel.y = {.raw_value = basic_motion.accel_y, .properties = properties};
+        status.accel.z = {.raw_value = basic_motion.accel_z, .properties = properties};
+        status.gyro.x = {.raw_value = basic_motion.gyro_x, .properties = properties};
+        status.gyro.y = {.raw_value = basic_motion.gyro_y, .properties = properties};
+        status.gyro.z = {.raw_value = basic_motion.gyro_z, .properties = properties};
+        status.delta_timestamp = basic_motion.delta_timestamp;
+        return status;
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Motion,
+            .motion_status = GetStatus(),
+        };
+
+        TriggerOnChange(status);
+    }
+
+private:
+    const PadIdentifier identifier;
+    const int motion_sensor;
+    int callback_key;
+    InputEngine* input_engine;
+};
+
+class InputFromAxisMotion final : public Common::Input::InputDevice {
+public:
+    explicit InputFromAxisMotion(PadIdentifier identifier_, int axis_x_, int axis_y_, int axis_z_,
+                                 Common::Input::AnalogProperties properties_x_,
+                                 Common::Input::AnalogProperties properties_y_,
+                                 Common::Input::AnalogProperties properties_z_,
+                                 InputEngine* input_engine_)
+        : identifier(identifier_), axis_x(axis_x_), axis_y(axis_y_), axis_z(axis_z_),
+          properties_x(properties_x_), properties_y(properties_y_), properties_z(properties_z_),
+          input_engine(input_engine_) {
+        UpdateCallback engine_callback{[this]() { OnChange(); }};
+        const InputIdentifier x_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis_x,
+            .callback = engine_callback,
+        };
+        const InputIdentifier y_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis_y,
+            .callback = engine_callback,
+        };
+        const InputIdentifier z_input_identifier{
+            .identifier = identifier,
+            .type = EngineInputType::Analog,
+            .index = axis_z,
+            .callback = engine_callback,
+        };
+        last_axis_x_value = 0.0f;
+        last_axis_y_value = 0.0f;
+        last_axis_z_value = 0.0f;
+        callback_key_x = input_engine->SetCallback(x_input_identifier);
+        callback_key_y = input_engine->SetCallback(y_input_identifier);
+        callback_key_z = input_engine->SetCallback(z_input_identifier);
+    }
+
+    ~InputFromAxisMotion() {
+        input_engine->DeleteCallback(callback_key_x);
+        input_engine->DeleteCallback(callback_key_y);
+        input_engine->DeleteCallback(callback_key_z);
+    }
+
+    Common::Input::MotionStatus GetStatus() const {
+        Common::Input::MotionStatus status{};
+        status.gyro.x = {
+            .raw_value = input_engine->GetAxis(identifier, axis_x),
+            .properties = properties_x,
+        };
+        status.gyro.y = {
+            .raw_value = input_engine->GetAxis(identifier, axis_y),
+            .properties = properties_y,
+        };
+        status.gyro.z = {
+            .raw_value = input_engine->GetAxis(identifier, axis_z),
+            .properties = properties_z,
+        };
+        return status;
+    }
+
+    void ForceUpdate() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Motion,
+            .motion_status = GetStatus(),
+        };
+
+        last_axis_x_value = status.motion_status.gyro.x.raw_value;
+        last_axis_y_value = status.motion_status.gyro.y.raw_value;
+        last_axis_z_value = status.motion_status.gyro.z.raw_value;
+        TriggerOnChange(status);
+    }
+
+    void OnChange() {
+        const Common::Input::CallbackStatus status{
+            .type = Common::Input::InputType::Motion,
+            .motion_status = GetStatus(),
+        };
+
+        if (status.motion_status.gyro.x.raw_value != last_axis_x_value ||
+            status.motion_status.gyro.y.raw_value != last_axis_y_value ||
+            status.motion_status.gyro.z.raw_value != last_axis_z_value) {
+            last_axis_x_value = status.motion_status.gyro.x.raw_value;
+            last_axis_y_value = status.motion_status.gyro.y.raw_value;
+            last_axis_z_value = status.motion_status.gyro.z.raw_value;
+            TriggerOnChange(status);
+        }
+    }
+
+private:
+    const PadIdentifier identifier;
+    const int axis_x;
+    const int axis_y;
+    const int axis_z;
+    const Common::Input::AnalogProperties properties_x;
+    const Common::Input::AnalogProperties properties_y;
+    const Common::Input::AnalogProperties properties_z;
+    int callback_key_x;
+    int callback_key_y;
+    int callback_key_z;
+    float last_axis_x_value;
+    float last_axis_y_value;
+    float last_axis_z_value;
+    InputEngine* input_engine;
+};
+
+class OutputFromIdentifier final : public Common::Input::OutputDevice {
+public:
+    explicit OutputFromIdentifier(PadIdentifier identifier_, InputEngine* input_engine_)
+        : identifier(identifier_), input_engine(input_engine_) {}
+
+    virtual void SetLED(Common::Input::LedStatus led_status) {
+        input_engine->SetLeds(identifier, led_status);
+    }
+
+    virtual Common::Input::VibrationError SetVibration(
+        Common::Input::VibrationStatus vibration_status) {
+        return input_engine->SetRumble(identifier, vibration_status);
+    }
+
+    virtual Common::Input::PollingError SetPollingMode(Common::Input::PollingMode polling_mode) {
+        return input_engine->SetPollingMode(identifier, polling_mode);
+    }
+
+private:
+    const PadIdentifier identifier;
+    InputEngine* input_engine;
+};
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::CreateButtonDevice(
+    const Common::ParamPackage& params) {
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    const auto button_id = params.Get("button", 0);
+    const auto keyboard_key = params.Get("code", 0);
+    const auto toggle = params.Get("toggle", false);
+    const auto inverted = params.Get("inverted", false);
+    input_engine->PreSetController(identifier);
+    input_engine->PreSetButton(identifier, button_id);
+    input_engine->PreSetButton(identifier, keyboard_key);
+    if (keyboard_key != 0) {
+        return std::make_unique<InputFromButton>(identifier, keyboard_key, toggle, inverted,
+                                                 input_engine.get());
+    }
+    return std::make_unique<InputFromButton>(identifier, button_id, toggle, inverted,
+                                             input_engine.get());
+}
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::CreateHatButtonDevice(
+    const Common::ParamPackage& params) {
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    const auto button_id = params.Get("hat", 0);
+    const auto direction = input_engine->GetHatButtonId(params.Get("direction", ""));
+    const auto toggle = params.Get("toggle", false);
+    const auto inverted = params.Get("inverted", false);
+
+    input_engine->PreSetController(identifier);
+    input_engine->PreSetHatButton(identifier, button_id);
+    return std::make_unique<InputFromHatButton>(identifier, button_id, direction, toggle, inverted,
+                                                input_engine.get());
+}
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::CreateStickDevice(
+    const Common::ParamPackage& params) {
+    const auto deadzone = std::clamp(params.Get("deadzone", 0.15f), 0.0f, 1.0f);
+    const auto range = std::clamp(params.Get("range", 1.0f), 0.25f, 1.50f);
+    const auto threshold = std::clamp(params.Get("threshold", 0.5f), 0.0f, 1.0f);
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    const auto axis_x = params.Get("axis_x", 0);
+    const Common::Input::AnalogProperties properties_x = {
+        .deadzone = deadzone,
+        .range = range,
+        .threshold = threshold,
+        .offset = std::clamp(params.Get("offset_x", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert_x", "+") == "-",
+    };
+
+    const auto axis_y = params.Get("axis_y", 1);
+    const Common::Input::AnalogProperties properties_y = {
+        .deadzone = deadzone,
+        .range = range,
+        .threshold = threshold,
+        .offset = std::clamp(params.Get("offset_y", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert_y", "+") != "+",
+    };
+    input_engine->PreSetController(identifier);
+    input_engine->PreSetAxis(identifier, axis_x);
+    input_engine->PreSetAxis(identifier, axis_y);
+    return std::make_unique<InputFromStick>(identifier, axis_x, axis_y, properties_x, properties_y,
+                                            input_engine.get());
+}
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::CreateAnalogDevice(
+    const Common::ParamPackage& params) {
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    const auto axis = params.Get("axis", 0);
+    const Common::Input::AnalogProperties properties = {
+        .deadzone = std::clamp(params.Get("deadzone", 0.0f), 0.0f, 1.0f),
+        .range = std::clamp(params.Get("range", 1.0f), 0.25f, 1.50f),
+        .threshold = std::clamp(params.Get("threshold", 0.5f), 0.0f, 1.0f),
+        .offset = std::clamp(params.Get("offset", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert", "+") == "-",
+    };
+    input_engine->PreSetController(identifier);
+    input_engine->PreSetAxis(identifier, axis);
+    return std::make_unique<InputFromAnalog>(identifier, axis, properties, input_engine.get());
+}
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::CreateTriggerDevice(
+    const Common::ParamPackage& params) {
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    const auto button = params.Get("button", 0);
+    const auto toggle = params.Get("toggle", false);
+    const auto inverted = params.Get("inverted", false);
+
+    const auto axis = params.Get("axis", 0);
+    const Common::Input::AnalogProperties properties = {
+        .deadzone = std::clamp(params.Get("deadzone", 0.0f), 0.0f, 1.0f),
+        .range = std::clamp(params.Get("range", 1.0f), 0.25f, 2.50f),
+        .threshold = std::clamp(params.Get("threshold", 0.5f), 0.0f, 1.0f),
+        .offset = std::clamp(params.Get("offset", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert", false) != 0,
+    };
+    input_engine->PreSetController(identifier);
+    input_engine->PreSetAxis(identifier, axis);
+    input_engine->PreSetButton(identifier, button);
+    return std::make_unique<InputFromTrigger>(identifier, button, toggle, inverted, axis,
+                                              properties, input_engine.get());
+}
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::CreateTouchDevice(
+    const Common::ParamPackage& params) {
+    const auto touch_id = params.Get("touch_id", 0);
+    const auto deadzone = std::clamp(params.Get("deadzone", 0.0f), 0.0f, 1.0f);
+    const auto range = std::clamp(params.Get("range", 1.0f), 0.25f, 1.50f);
+    const auto threshold = std::clamp(params.Get("threshold", 0.5f), 0.0f, 1.0f);
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    const auto button = params.Get("button", 0);
+    const auto toggle = params.Get("toggle", false);
+    const auto inverted = params.Get("inverted", false);
+
+    const auto axis_x = params.Get("axis_x", 0);
+    const Common::Input::AnalogProperties properties_x = {
+        .deadzone = deadzone,
+        .range = range,
+        .threshold = threshold,
+        .offset = std::clamp(params.Get("offset_x", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert_x", "+") == "-",
+    };
+
+    const auto axis_y = params.Get("axis_y", 1);
+    const Common::Input::AnalogProperties properties_y = {
+        .deadzone = deadzone,
+        .range = range,
+        .threshold = threshold,
+        .offset = std::clamp(params.Get("offset_y", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert_y", false) != 0,
+    };
+    input_engine->PreSetController(identifier);
+    input_engine->PreSetAxis(identifier, axis_x);
+    input_engine->PreSetAxis(identifier, axis_y);
+    input_engine->PreSetButton(identifier, button);
+    return std::make_unique<InputFromTouch>(identifier, touch_id, button, toggle, inverted, axis_x,
+                                            axis_y, properties_x, properties_y, input_engine.get());
+}
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::CreateBatteryDevice(
+    const Common::ParamPackage& params) {
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    input_engine->PreSetController(identifier);
+    return std::make_unique<InputFromBattery>(identifier, input_engine.get());
+}
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::CreateMotionDevice(
+    Common::ParamPackage params) {
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    if (params.Has("motion")) {
+        const auto motion_sensor = params.Get("motion", 0);
+        input_engine->PreSetController(identifier);
+        input_engine->PreSetMotion(identifier, motion_sensor);
+        return std::make_unique<InputFromMotion>(identifier, motion_sensor, input_engine.get());
+    }
+
+    const auto deadzone = std::clamp(params.Get("deadzone", 0.15f), 0.0f, 1.0f);
+    const auto range = std::clamp(params.Get("range", 1.0f), 0.25f, 1.50f);
+    const auto threshold = std::clamp(params.Get("threshold", 0.5f), 0.0f, 1.0f);
+
+    const auto axis_x = params.Get("axis_x", 0);
+    const Common::Input::AnalogProperties properties_x = {
+        .deadzone = deadzone,
+        .range = range,
+        .threshold = threshold,
+        .offset = std::clamp(params.Get("offset_x", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert_x", "+") == "-",
+    };
+
+    const auto axis_y = params.Get("axis_y", 1);
+    const Common::Input::AnalogProperties properties_y = {
+        .deadzone = deadzone,
+        .range = range,
+        .threshold = threshold,
+        .offset = std::clamp(params.Get("offset_y", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert_y", "+") != "+",
+    };
+
+    const auto axis_z = params.Get("axis_z", 1);
+    const Common::Input::AnalogProperties properties_z = {
+        .deadzone = deadzone,
+        .range = range,
+        .threshold = threshold,
+        .offset = std::clamp(params.Get("offset_z", 0.0f), -1.0f, 1.0f),
+        .inverted = params.Get("invert_z", "+") != "+",
+    };
+    input_engine->PreSetController(identifier);
+    input_engine->PreSetAxis(identifier, axis_x);
+    input_engine->PreSetAxis(identifier, axis_y);
+    input_engine->PreSetAxis(identifier, axis_z);
+    return std::make_unique<InputFromAxisMotion>(identifier, axis_x, axis_y, axis_z, properties_x,
+                                                 properties_y, properties_z, input_engine.get());
+}
+
+InputFactory::InputFactory(std::shared_ptr<InputEngine> input_engine_)
+    : input_engine(std::move(input_engine_)) {}
+
+std::unique_ptr<Common::Input::InputDevice> InputFactory::Create(
+    const Common::ParamPackage& params) {
+    if (params.Has("battery")) {
+        return CreateBatteryDevice(params);
+    }
+    if (params.Has("button") && params.Has("axis")) {
+        return CreateTriggerDevice(params);
+    }
+    if (params.Has("button") && params.Has("axis_x") && params.Has("axis_y")) {
+        return CreateTouchDevice(params);
+    }
+    if (params.Has("button") || params.Has("code")) {
+        return CreateButtonDevice(params);
+    }
+    if (params.Has("hat")) {
+        return CreateHatButtonDevice(params);
+    }
+    if (params.Has("axis_x") && params.Has("axis_y") && params.Has("axis_z")) {
+        return CreateMotionDevice(params);
+    }
+    if (params.Has("motion")) {
+        return CreateMotionDevice(params);
+    }
+    if (params.Has("axis_x") && params.Has("axis_y")) {
+        return CreateStickDevice(params);
+    }
+    if (params.Has("axis")) {
+        return CreateAnalogDevice(params);
+    }
+    LOG_ERROR(Input, "Invalid parameters given");
+    return std::make_unique<DummyInput>();
+}
+
+OutputFactory::OutputFactory(std::shared_ptr<InputEngine> input_engine_)
+    : input_engine(std::move(input_engine_)) {}
+
+std::unique_ptr<Common::Input::OutputDevice> OutputFactory::Create(
+    const Common::ParamPackage& params) {
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    input_engine->PreSetController(identifier);
+    return std::make_unique<OutputFromIdentifier>(identifier, input_engine.get());
+}
+
+} // namespace InputCommon

src/input_common/input_poller.h

@@ -0,0 +1,217 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+namespace Input {
+class InputDevice;
+
+template <typename InputDevice>
+class Factory;
+}; // namespace Input
+
+namespace InputCommon {
+class InputEngine;
+/**
+ * An Input factory. It receives input events and forward them to all input devices it created.
+ */
+
+class OutputFactory final : public Common::Input::Factory<Common::Input::OutputDevice> {
+public:
+    explicit OutputFactory(std::shared_ptr<InputEngine> input_engine_);
+
+    /**
+     * Creates an output device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique ouput device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::OutputDevice> Create(
+        const Common::ParamPackage& params) override;
+
+private:
+    std::shared_ptr<InputEngine> input_engine;
+};
+
+class InputFactory final : public Common::Input::Factory<Common::Input::InputDevice> {
+public:
+    explicit InputFactory(std::shared_ptr<InputEngine> input_engine_);
+
+    /**
+     * Creates an input device from the parameters given. Identifies the type of input to be
+     * returned if it contains the following parameters:
+     * - button: Contains "button" or "code"
+     * - hat_button: Contains "hat"
+     * - analog: Contains "axis"
+     * - trigger: Contains "button" and  "axis"
+     * - stick: Contains "axis_x" and "axis_y"
+     * - motion: Contains "axis_x", "axis_y" and "axis_z"
+     * - motion: Contains "motion"
+     * - touch: Contains "button", "axis_x" and "axis_y"
+     * - battery: Contains "battery"
+     * - output: Contains "output"
+     * @param params contains parameters for creating the device:
+     * @param    - "code": the code of the keyboard key to bind with the input
+     * @param    - "button": same as "code" but for controller buttons
+     * @param    - "hat": similar as "button" but it's a group of hat buttons from SDL
+     * @param    - "axis": the axis number of the axis to bind with the input
+     * @param    - "motion": the motion number of the motion to bind with the input
+     * @param    - "axis_x": same as axis but specifing horizontal direction
+     * @param    - "axis_y": same as axis but specifing vertical direction
+     * @param    - "axis_z": same as axis but specifing forward direction
+     * @param    - "battery": Only used as a placeholder to set the input type
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> Create(const Common::ParamPackage& params) override;
+
+private:
+    /**
+     * Creates a button device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "code": the code of the keyboard key to bind with the input
+     * @param    - "button": same as "code" but for controller buttons
+     * @param    - "toggle": press once to enable, press again to disable
+     * @param    - "inverted": inverts the output of the button
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> CreateButtonDevice(
+        const Common::ParamPackage& params);
+
+    /**
+     * Creates a hat button device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "button": the controller hat id to bind with the input
+     * @param    - "direction": the direction id to be detected
+     * @param    - "toggle": press once to enable, press again to disable
+     * @param    - "inverted": inverts the output of the button
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> CreateHatButtonDevice(
+        const Common::ParamPackage& params);
+
+    /**
+     * Creates a stick device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "axis_x": the controller horizontal axis id to bind with the input
+     * @param    - "axis_y": the controller vertical axis id to bind with the input
+     * @param    - "deadzone": the mimimum required value to be detected
+     * @param    - "range": the maximum value required to reach 100%
+     * @param    - "threshold": the mimimum required value to considered pressed
+     * @param    - "offset_x": the amount of offset in the x axis
+     * @param    - "offset_y": the amount of offset in the y axis
+     * @param    - "invert_x": inverts the sign of the horizontal axis
+     * @param    - "invert_y": inverts the sign of the vertical axis
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> CreateStickDevice(
+        const Common::ParamPackage& params);
+
+    /**
+     * Creates an analog device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "axis": the controller axis id to bind with the input
+     * @param    - "deadzone": the mimimum required value to be detected
+     * @param    - "range": the maximum value required to reach 100%
+     * @param    - "threshold": the mimimum required value to considered pressed
+     * @param    - "offset": the amount of offset in the axis
+     * @param    - "invert": inverts the sign of the axis
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> CreateAnalogDevice(
+        const Common::ParamPackage& params);
+
+    /**
+     * Creates a trigger device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "button": the controller hat id to bind with the input
+     * @param    - "direction": the direction id to be detected
+     * @param    - "toggle": press once to enable, press again to disable
+     * @param    - "inverted": inverts the output of the button
+     * @param    - "axis": the controller axis id to bind with the input
+     * @param    - "deadzone": the mimimum required value to be detected
+     * @param    - "range": the maximum value required to reach 100%
+     * @param    - "threshold": the mimimum required value to considered pressed
+     * @param    - "offset": the amount of offset in the axis
+     * @param    - "invert": inverts the sign of the axis
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> CreateTriggerDevice(
+        const Common::ParamPackage& params);
+
+    /**
+     * Creates a touch device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "button": the controller hat id to bind with the input
+     * @param    - "direction": the direction id to be detected
+     * @param    - "toggle": press once to enable, press again to disable
+     * @param    - "inverted": inverts the output of the button
+     * @param    - "axis_x": the controller horizontal axis id to bind with the input
+     * @param    - "axis_y": the controller vertical axis id to bind with the input
+     * @param    - "deadzone": the mimimum required value to be detected
+     * @param    - "range": the maximum value required to reach 100%
+     * @param    - "threshold": the mimimum required value to considered pressed
+     * @param    - "offset_x": the amount of offset in the x axis
+     * @param    - "offset_y": the amount of offset in the y axis
+     * @param    - "invert_x": inverts the sign of the horizontal axis
+     * @param    - "invert_y": inverts the sign of the vertical axis
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> CreateTouchDevice(
+        const Common::ParamPackage& params);
+
+    /**
+     * Creates a battery device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> CreateBatteryDevice(
+        const Common::ParamPackage& params);
+
+    /**
+     * Creates a motion device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "axis_x": the controller horizontal axis id to bind with the input
+     * @param    - "axis_y": the controller vertical axis id to bind with the input
+     * @param    - "axis_z": the controller fordward axis id to bind with the input
+     * @param    - "deadzone": the mimimum required value to be detected
+     * @param    - "range": the maximum value required to reach 100%
+     * @param    - "offset_x": the amount of offset in the x axis
+     * @param    - "offset_y": the amount of offset in the y axis
+     * @param    - "offset_z": the amount of offset in the z axis
+     * @param    - "invert_x": inverts the sign of the horizontal axis
+     * @param    - "invert_y": inverts the sign of the vertical axis
+     * @param    - "invert_z": inverts the sign of the fordward axis
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique input device with the parameters specified
+     */
+    std::unique_ptr<Common::Input::InputDevice> CreateMotionDevice(Common::ParamPackage params);
+
+    std::shared_ptr<InputEngine> input_engine;
+};
+} // namespace InputCommon

src/input_common/main.cpp

@@ -4,146 +4,164 @@
 
 #include <memory>
 #include <thread>
+#include "common/input.h"
 #include "common/param_package.h"
-#include "common/settings.h"
-#include "input_common/analog_from_button.h"
-#include "input_common/gcadapter/gc_adapter.h"
-#include "input_common/gcadapter/gc_poller.h"
-#include "input_common/keyboard.h"
+#include "input_common/drivers/gc_adapter.h"
+#include "input_common/drivers/keyboard.h"
+#include "input_common/drivers/mouse.h"
+#include "input_common/drivers/tas_input.h"
+#include "input_common/drivers/touch_screen.h"
+#include "input_common/drivers/udp_client.h"
+#include "input_common/helpers/stick_from_buttons.h"
+#include "input_common/helpers/touch_from_buttons.h"
+#include "input_common/input_engine.h"
+#include "input_common/input_mapping.h"
+#include "input_common/input_poller.h"
 #include "input_common/main.h"
-#include "input_common/motion_from_button.h"
-#include "input_common/mouse/mouse_input.h"
-#include "input_common/mouse/mouse_poller.h"
-#include "input_common/tas/tas_input.h"
-#include "input_common/tas/tas_poller.h"
-#include "input_common/touch_from_button.h"
-#include "input_common/udp/client.h"
-#include "input_common/udp/udp.h"
 #ifdef HAVE_SDL2
-#include "input_common/sdl/sdl.h"
+#include "input_common/drivers/sdl_driver.h"
 #endif
 
 namespace InputCommon {
 
 struct InputSubsystem::Impl {
     void Initialize() {
-        gcadapter = std::make_shared<GCAdapter::Adapter>();
-        gcbuttons = std::make_shared<GCButtonFactory>(gcadapter);
-        Input::RegisterFactory<Input::ButtonDevice>("gcpad", gcbuttons);
-        gcanalog = std::make_shared<GCAnalogFactory>(gcadapter);
-        Input::RegisterFactory<Input::AnalogDevice>("gcpad", gcanalog);
-        gcvibration = std::make_shared<GCVibrationFactory>(gcadapter);
-        Input::RegisterFactory<Input::VibrationDevice>("gcpad", gcvibration);
+        mapping_factory = std::make_shared<MappingFactory>();
+        MappingCallback mapping_callback{[this](MappingData data) { RegisterInput(data); }};
 
-        keyboard = std::make_shared<Keyboard>();
-        Input::RegisterFactory<Input::ButtonDevice>("keyboard", keyboard);
-        Input::RegisterFactory<Input::AnalogDevice>("analog_from_button",
-                                                    std::make_shared<AnalogFromButton>());
-        Input::RegisterFactory<Input::MotionDevice>("keyboard",
-                                                    std::make_shared<MotionFromButton>());
-        Input::RegisterFactory<Input::TouchDevice>("touch_from_button",
-                                                   std::make_shared<TouchFromButtonFactory>());
+        keyboard = std::make_shared<Keyboard>("keyboard");
+        keyboard->SetMappingCallback(mapping_callback);
+        keyboard_factory = std::make_shared<InputFactory>(keyboard);
+        keyboard_output_factory = std::make_shared<OutputFactory>(keyboard);
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(keyboard->GetEngineName(),
+                                                                   keyboard_factory);
+        Common::Input::RegisterFactory<Common::Input::OutputDevice>(keyboard->GetEngineName(),
+                                                                    keyboard_output_factory);
+
+        mouse = std::make_shared<Mouse>("mouse");
+        mouse->SetMappingCallback(mapping_callback);
+        mouse_factory = std::make_shared<InputFactory>(mouse);
+        mouse_output_factory = std::make_shared<OutputFactory>(mouse);
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(mouse->GetEngineName(),
+                                                                   mouse_factory);
+        Common::Input::RegisterFactory<Common::Input::OutputDevice>(mouse->GetEngineName(),
+                                                                    mouse_output_factory);
+
+        touch_screen = std::make_shared<TouchScreen>("touch");
+        touch_screen_factory = std::make_shared<InputFactory>(touch_screen);
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(touch_screen->GetEngineName(),
+                                                                   touch_screen_factory);
+
+        gcadapter = std::make_shared<GCAdapter>("gcpad");
+        gcadapter->SetMappingCallback(mapping_callback);
+        gcadapter_input_factory = std::make_shared<InputFactory>(gcadapter);
+        gcadapter_output_factory = std::make_shared<OutputFactory>(gcadapter);
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(gcadapter->GetEngineName(),
+                                                                   gcadapter_input_factory);
+        Common::Input::RegisterFactory<Common::Input::OutputDevice>(gcadapter->GetEngineName(),
+                                                                    gcadapter_output_factory);
+
+        udp_client = std::make_shared<CemuhookUDP::UDPClient>("cemuhookudp");
+        udp_client->SetMappingCallback(mapping_callback);
+        udp_client_factory = std::make_shared<InputFactory>(udp_client);
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(udp_client->GetEngineName(),
+                                                                   udp_client_factory);
+
+        tas_input = std::make_shared<TasInput::Tas>("tas");
+        tas_input->SetMappingCallback(mapping_callback);
+        tas_input_factory = std::make_shared<InputFactory>(tas_input);
+        tas_output_factory = std::make_shared<OutputFactory>(tas_input);
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(tas_input->GetEngineName(),
+                                                                   tas_input_factory);
+        Common::Input::RegisterFactory<Common::Input::OutputDevice>(tas_input->GetEngineName(),
+                                                                    tas_output_factory);
 
 #ifdef HAVE_SDL2
-        sdl = SDL::Init();
+        sdl = std::make_shared<SDLDriver>("sdl");
+        sdl->SetMappingCallback(mapping_callback);
+        sdl_input_factory = std::make_shared<InputFactory>(sdl);
+        sdl_output_factory = std::make_shared<OutputFactory>(sdl);
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(sdl->GetEngineName(),
+                                                                   sdl_input_factory);
+        Common::Input::RegisterFactory<Common::Input::OutputDevice>(sdl->GetEngineName(),
+                                                                    sdl_output_factory);
 #endif
 
-        udp = std::make_shared<InputCommon::CemuhookUDP::Client>();
-        udpmotion = std::make_shared<UDPMotionFactory>(udp);
-        Input::RegisterFactory<Input::MotionDevice>("cemuhookudp", udpmotion);
-        udptouch = std::make_shared<UDPTouchFactory>(udp);
-        Input::RegisterFactory<Input::TouchDevice>("cemuhookudp", udptouch);
-
-        mouse = std::make_shared<MouseInput::Mouse>();
-        mousebuttons = std::make_shared<MouseButtonFactory>(mouse);
-        Input::RegisterFactory<Input::ButtonDevice>("mouse", mousebuttons);
-        mouseanalog = std::make_shared<MouseAnalogFactory>(mouse);
-        Input::RegisterFactory<Input::AnalogDevice>("mouse", mouseanalog);
-        mousemotion = std::make_shared<MouseMotionFactory>(mouse);
-        Input::RegisterFactory<Input::MotionDevice>("mouse", mousemotion);
-        mousetouch = std::make_shared<MouseTouchFactory>(mouse);
-        Input::RegisterFactory<Input::TouchDevice>("mouse", mousetouch);
-
-        tas = std::make_shared<TasInput::Tas>();
-        tasbuttons = std::make_shared<TasButtonFactory>(tas);
-        Input::RegisterFactory<Input::ButtonDevice>("tas", tasbuttons);
-        tasanalog = std::make_shared<TasAnalogFactory>(tas);
-        Input::RegisterFactory<Input::AnalogDevice>("tas", tasanalog);
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(
+            "touch_from_button", std::make_shared<TouchFromButton>());
+        Common::Input::RegisterFactory<Common::Input::InputDevice>(
+            "analog_from_button", std::make_shared<StickFromButton>());
     }
 
     void Shutdown() {
-        Input::UnregisterFactory<Input::ButtonDevice>("keyboard");
-        Input::UnregisterFactory<Input::MotionDevice>("keyboard");
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>(keyboard->GetEngineName());
+        Common::Input::UnregisterFactory<Common::Input::OutputDevice>(keyboard->GetEngineName());
         keyboard.reset();
-        Input::UnregisterFactory<Input::AnalogDevice>("analog_from_button");
-        Input::UnregisterFactory<Input::TouchDevice>("touch_from_button");
+
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>(mouse->GetEngineName());
+        Common::Input::UnregisterFactory<Common::Input::OutputDevice>(mouse->GetEngineName());
+        mouse.reset();
+
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>(touch_screen->GetEngineName());
+        touch_screen.reset();
+
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>(gcadapter->GetEngineName());
+        Common::Input::UnregisterFactory<Common::Input::OutputDevice>(gcadapter->GetEngineName());
+        gcadapter.reset();
+
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>(udp_client->GetEngineName());
+        udp_client.reset();
+
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>(tas_input->GetEngineName());
+        Common::Input::UnregisterFactory<Common::Input::OutputDevice>(tas_input->GetEngineName());
+        tas_input.reset();
+
 #ifdef HAVE_SDL2
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>(sdl->GetEngineName());
+        Common::Input::UnregisterFactory<Common::Input::OutputDevice>(sdl->GetEngineName());
         sdl.reset();
 #endif
-        Input::UnregisterFactory<Input::ButtonDevice>("gcpad");
-        Input::UnregisterFactory<Input::AnalogDevice>("gcpad");
-        Input::UnregisterFactory<Input::VibrationDevice>("gcpad");
 
-        gcbuttons.reset();
-        gcanalog.reset();
-        gcvibration.reset();
-
-        Input::UnregisterFactory<Input::MotionDevice>("cemuhookudp");
-        Input::UnregisterFactory<Input::TouchDevice>("cemuhookudp");
-
-        udpmotion.reset();
-        udptouch.reset();
-
-        Input::UnregisterFactory<Input::ButtonDevice>("mouse");
-        Input::UnregisterFactory<Input::AnalogDevice>("mouse");
-        Input::UnregisterFactory<Input::MotionDevice>("mouse");
-        Input::UnregisterFactory<Input::TouchDevice>("mouse");
-
-        mousebuttons.reset();
-        mouseanalog.reset();
-        mousemotion.reset();
-        mousetouch.reset();
-
-        Input::UnregisterFactory<Input::ButtonDevice>("tas");
-        Input::UnregisterFactory<Input::AnalogDevice>("tas");
-
-        tasbuttons.reset();
-        tasanalog.reset();
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>("touch_from_button");
+        Common::Input::UnregisterFactory<Common::Input::InputDevice>("analog_from_button");
     }
 
     [[nodiscard]] std::vector<Common::ParamPackage> GetInputDevices() const {
         std::vector<Common::ParamPackage> devices = {
-            Common::ParamPackage{{"display", "Any"}, {"class", "any"}},
-            Common::ParamPackage{{"display", "Keyboard/Mouse"}, {"class", "keyboard"}},
+            Common::ParamPackage{{"display", "Any"}, {"engine", "any"}},
         };
-        if (Settings::values.tas_enable) {
-            devices.emplace_back(
-                Common::ParamPackage{{"display", "TAS Controller"}, {"class", "tas"}});
-        }
+
+        auto keyboard_devices = keyboard->GetInputDevices();
+        devices.insert(devices.end(), keyboard_devices.begin(), keyboard_devices.end());
+        auto mouse_devices = mouse->GetInputDevices();
+        devices.insert(devices.end(), mouse_devices.begin(), mouse_devices.end());
+        auto gcadapter_devices = gcadapter->GetInputDevices();
+        devices.insert(devices.end(), gcadapter_devices.begin(), gcadapter_devices.end());
 #ifdef HAVE_SDL2
         auto sdl_devices = sdl->GetInputDevices();
         devices.insert(devices.end(), sdl_devices.begin(), sdl_devices.end());
 #endif
-        auto udp_devices = udp->GetInputDevices();
-        devices.insert(devices.end(), udp_devices.begin(), udp_devices.end());
-        auto gcpad_devices = gcadapter->GetInputDevices();
-        devices.insert(devices.end(), gcpad_devices.begin(), gcpad_devices.end());
+
         return devices;
     }
 
     [[nodiscard]] AnalogMapping GetAnalogMappingForDevice(
         const Common::ParamPackage& params) const {
-        if (!params.Has("class") || params.Get("class", "") == "any") {
+        if (!params.Has("engine") || params.Get("engine", "") == "any") {
             return {};
         }
-        if (params.Get("class", "") == "gcpad") {
+        const std::string engine = params.Get("engine", "");
+        if (engine == mouse->GetEngineName()) {
+            return mouse->GetAnalogMappingForDevice(params);
+        }
+        if (engine == gcadapter->GetEngineName()) {
             return gcadapter->GetAnalogMappingForDevice(params);
         }
-        if (params.Get("class", "") == "tas") {
-            return tas->GetAnalogMappingForDevice(params);
+        if (engine == tas_input->GetEngineName()) {
+            return tas_input->GetAnalogMappingForDevice(params);
         }
 #ifdef HAVE_SDL2
-        if (params.Get("class", "") == "sdl") {
+        if (engine == sdl->GetEngineName()) {
             return sdl->GetAnalogMappingForDevice(params);
         }
 #endif
@@ -152,17 +170,18 @@ struct InputSubsystem::Impl {
 
     [[nodiscard]] ButtonMapping GetButtonMappingForDevice(
         const Common::ParamPackage& params) const {
-        if (!params.Has("class") || params.Get("class", "") == "any") {
+        if (!params.Has("engine") || params.Get("engine", "") == "any") {
             return {};
         }
-        if (params.Get("class", "") == "gcpad") {
+        const std::string engine = params.Get("engine", "");
+        if (engine == gcadapter->GetEngineName()) {
             return gcadapter->GetButtonMappingForDevice(params);
         }
-        if (params.Get("class", "") == "tas") {
-            return tas->GetButtonMappingForDevice(params);
+        if (engine == tas_input->GetEngineName()) {
+            return tas_input->GetButtonMappingForDevice(params);
         }
 #ifdef HAVE_SDL2
-        if (params.Get("class", "") == "sdl") {
+        if (engine == sdl->GetEngineName()) {
             return sdl->GetButtonMappingForDevice(params);
         }
 #endif
@@ -171,40 +190,115 @@ struct InputSubsystem::Impl {
 
     [[nodiscard]] MotionMapping GetMotionMappingForDevice(
         const Common::ParamPackage& params) const {
-        if (!params.Has("class") || params.Get("class", "") == "any") {
+        if (!params.Has("engine") || params.Get("engine", "") == "any") {
             return {};
         }
-        if (params.Get("class", "") == "cemuhookudp") {
-            // TODO return the correct motion device
-            return {};
+        const std::string engine = params.Get("engine", "");
+        if (engine == gcadapter->GetEngineName()) {
+            return gcadapter->GetMotionMappingForDevice(params);
         }
 #ifdef HAVE_SDL2
-        if (params.Get("class", "") == "sdl") {
+        if (engine == sdl->GetEngineName()) {
             return sdl->GetMotionMappingForDevice(params);
         }
 #endif
         return {};
     }
 
-    std::shared_ptr<Keyboard> keyboard;
+    std::string GetButtonName(const Common::ParamPackage& params) const {
+        if (!params.Has("engine") || params.Get("engine", "") == "any") {
+            return "Unknown";
+        }
+        const std::string engine = params.Get("engine", "");
+        if (engine == mouse->GetEngineName()) {
+            return mouse->GetUIName(params);
+        }
+        if (engine == gcadapter->GetEngineName()) {
+            return gcadapter->GetUIName(params);
+        }
+        if (engine == udp_client->GetEngineName()) {
+            return udp_client->GetUIName(params);
+        }
+        if (engine == tas_input->GetEngineName()) {
+            return tas_input->GetUIName(params);
+        }
 #ifdef HAVE_SDL2
-    std::unique_ptr<SDL::State> sdl;
+        if (engine == sdl->GetEngineName()) {
+            return sdl->GetUIName(params);
+        }
+#endif
+        return "Bad engine";
+    }
+
+    bool IsController(const Common::ParamPackage& params) {
+        const std::string engine = params.Get("engine", "");
+        if (engine == mouse->GetEngineName()) {
+            return true;
+        }
+        if (engine == gcadapter->GetEngineName()) {
+            return true;
+        }
+        if (engine == tas_input->GetEngineName()) {
+            return true;
+        }
+#ifdef HAVE_SDL2
+        if (engine == sdl->GetEngineName()) {
+            return true;
+        }
+#endif
+        return false;
+    }
+
+    void BeginConfiguration() {
+        keyboard->BeginConfiguration();
+        mouse->BeginConfiguration();
+        gcadapter->BeginConfiguration();
+        udp_client->BeginConfiguration();
+#ifdef HAVE_SDL2
+        sdl->BeginConfiguration();
+#endif
+    }
+
+    void EndConfiguration() {
+        keyboard->EndConfiguration();
+        mouse->EndConfiguration();
+        gcadapter->EndConfiguration();
+        udp_client->EndConfiguration();
+#ifdef HAVE_SDL2
+        sdl->EndConfiguration();
+#endif
+    }
+
+    void RegisterInput(MappingData data) {
+        mapping_factory->RegisterInput(data);
+    }
+
+    std::shared_ptr<MappingFactory> mapping_factory;
+
+    std::shared_ptr<Keyboard> keyboard;
+    std::shared_ptr<Mouse> mouse;
+    std::shared_ptr<GCAdapter> gcadapter;
+    std::shared_ptr<TouchScreen> touch_screen;
+    std::shared_ptr<TasInput::Tas> tas_input;
+    std::shared_ptr<CemuhookUDP::UDPClient> udp_client;
+
+    std::shared_ptr<InputFactory> keyboard_factory;
+    std::shared_ptr<InputFactory> mouse_factory;
+    std::shared_ptr<InputFactory> gcadapter_input_factory;
+    std::shared_ptr<InputFactory> touch_screen_factory;
+    std::shared_ptr<InputFactory> udp_client_factory;
+    std::shared_ptr<InputFactory> tas_input_factory;
+
+    std::shared_ptr<OutputFactory> keyboard_output_factory;
+    std::shared_ptr<OutputFactory> mouse_output_factory;
+    std::shared_ptr<OutputFactory> gcadapter_output_factory;
+    std::shared_ptr<OutputFactory> tas_output_factory;
+
+#ifdef HAVE_SDL2
+    std::shared_ptr<SDLDriver> sdl;
+    std::shared_ptr<InputFactory> sdl_input_factory;
+    std::shared_ptr<OutputFactory> sdl_output_factory;
 #endif
-    std::shared_ptr<GCButtonFactory> gcbuttons;
-    std::shared_ptr<GCAnalogFactory> gcanalog;
-    std::shared_ptr<GCVibrationFactory> gcvibration;
-    std::shared_ptr<UDPMotionFactory> udpmotion;
-    std::shared_ptr<UDPTouchFactory> udptouch;
-    std::shared_ptr<MouseButtonFactory> mousebuttons;
-    std::shared_ptr<MouseAnalogFactory> mouseanalog;
-    std::shared_ptr<MouseMotionFactory> mousemotion;
-    std::shared_ptr<MouseTouchFactory> mousetouch;
-    std::shared_ptr<TasButtonFactory> tasbuttons;
-    std::shared_ptr<TasAnalogFactory> tasanalog;
-    std::shared_ptr<CemuhookUDP::Client> udp;
-    std::shared_ptr<GCAdapter::Adapter> gcadapter;
-    std::shared_ptr<MouseInput::Mouse> mouse;
-    std::shared_ptr<TasInput::Tas> tas;
 };
 
 InputSubsystem::InputSubsystem() : impl{std::make_unique<Impl>()} {}
@@ -227,20 +321,28 @@ const Keyboard* InputSubsystem::GetKeyboard() const {
     return impl->keyboard.get();
 }
 
-MouseInput::Mouse* InputSubsystem::GetMouse() {
+Mouse* InputSubsystem::GetMouse() {
     return impl->mouse.get();
 }
 
-const MouseInput::Mouse* InputSubsystem::GetMouse() const {
+const Mouse* InputSubsystem::GetMouse() const {
     return impl->mouse.get();
 }
 
+TouchScreen* InputSubsystem::GetTouchScreen() {
+    return impl->touch_screen.get();
+}
+
+const TouchScreen* InputSubsystem::GetTouchScreen() const {
+    return impl->touch_screen.get();
+}
+
 TasInput::Tas* InputSubsystem::GetTas() {
-    return impl->tas.get();
+    return impl->tas_input.get();
 }
 
 const TasInput::Tas* InputSubsystem::GetTas() const {
-    return impl->tas.get();
+    return impl->tas_input.get();
 }
 
 std::vector<Common::ParamPackage> InputSubsystem::GetInputDevices() const {
@@ -259,100 +361,37 @@ MotionMapping InputSubsystem::GetMotionMappingForDevice(const Common::ParamPacka
     return impl->GetMotionMappingForDevice(device);
 }
 
-GCAnalogFactory* InputSubsystem::GetGCAnalogs() {
-    return impl->gcanalog.get();
+std::string InputSubsystem::GetButtonName(const Common::ParamPackage& params) const {
+    const std::string toggle = params.Get("toggle", false) ? "~" : "";
+    const std::string inverted = params.Get("inverted", false) ? "!" : "";
+    const std::string button_name = impl->GetButtonName(params);
+    std::string axis_direction = "";
+    if (params.Has("axis")) {
+        axis_direction = params.Get("invert", "+");
+    }
+    return fmt::format("{}{}{}{}", toggle, inverted, button_name, axis_direction);
 }
 
-const GCAnalogFactory* InputSubsystem::GetGCAnalogs() const {
-    return impl->gcanalog.get();
-}
-
-GCButtonFactory* InputSubsystem::GetGCButtons() {
-    return impl->gcbuttons.get();
-}
-
-const GCButtonFactory* InputSubsystem::GetGCButtons() const {
-    return impl->gcbuttons.get();
-}
-
-UDPMotionFactory* InputSubsystem::GetUDPMotions() {
-    return impl->udpmotion.get();
-}
-
-const UDPMotionFactory* InputSubsystem::GetUDPMotions() const {
-    return impl->udpmotion.get();
-}
-
-UDPTouchFactory* InputSubsystem::GetUDPTouch() {
-    return impl->udptouch.get();
-}
-
-const UDPTouchFactory* InputSubsystem::GetUDPTouch() const {
-    return impl->udptouch.get();
-}
-
-MouseButtonFactory* InputSubsystem::GetMouseButtons() {
-    return impl->mousebuttons.get();
-}
-
-const MouseButtonFactory* InputSubsystem::GetMouseButtons() const {
-    return impl->mousebuttons.get();
-}
-
-MouseAnalogFactory* InputSubsystem::GetMouseAnalogs() {
-    return impl->mouseanalog.get();
-}
-
-const MouseAnalogFactory* InputSubsystem::GetMouseAnalogs() const {
-    return impl->mouseanalog.get();
-}
-
-MouseMotionFactory* InputSubsystem::GetMouseMotions() {
-    return impl->mousemotion.get();
-}
-
-const MouseMotionFactory* InputSubsystem::GetMouseMotions() const {
-    return impl->mousemotion.get();
-}
-
-MouseTouchFactory* InputSubsystem::GetMouseTouch() {
-    return impl->mousetouch.get();
-}
-
-const MouseTouchFactory* InputSubsystem::GetMouseTouch() const {
-    return impl->mousetouch.get();
-}
-
-TasButtonFactory* InputSubsystem::GetTasButtons() {
-    return impl->tasbuttons.get();
-}
-
-const TasButtonFactory* InputSubsystem::GetTasButtons() const {
-    return impl->tasbuttons.get();
-}
-
-TasAnalogFactory* InputSubsystem::GetTasAnalogs() {
-    return impl->tasanalog.get();
-}
-
-const TasAnalogFactory* InputSubsystem::GetTasAnalogs() const {
-    return impl->tasanalog.get();
+bool InputSubsystem::IsController(const Common::ParamPackage& params) const {
+    return impl->IsController(params);
 }
 
 void InputSubsystem::ReloadInputDevices() {
-    if (!impl->udp) {
-        return;
-    }
-    impl->udp->ReloadSockets();
+    impl->udp_client.get()->ReloadSockets();
 }
 
-std::vector<std::unique_ptr<Polling::DevicePoller>> InputSubsystem::GetPollers(
-    [[maybe_unused]] Polling::DeviceType type) const {
-#ifdef HAVE_SDL2
-    return impl->sdl->GetPollers(type);
-#else
-    return {};
-#endif
+void InputSubsystem::BeginMapping(Polling::InputType type) {
+    impl->BeginConfiguration();
+    impl->mapping_factory->BeginMapping(type);
+}
+
+const Common::ParamPackage InputSubsystem::GetNextInput() const {
+    return impl->mapping_factory->GetNextInput();
+}
+
+void InputSubsystem::StopMapping() const {
+    impl->EndConfiguration();
+    impl->mapping_factory->StopMapping();
 }
 
 std::string GenerateKeyboardParam(int key_code) {

src/input_common/main.h

@@ -25,56 +25,26 @@ namespace Settings::NativeMotion {
 enum Values : int;
 }
 
-namespace MouseInput {
+namespace InputCommon {
+class Keyboard;
 class Mouse;
-}
+class TouchScreen;
+struct MappingData;
+} // namespace InputCommon
 
-namespace TasInput {
+namespace InputCommon::TasInput {
 class Tas;
-}
+} // namespace InputCommon::TasInput
 
 namespace InputCommon {
 namespace Polling {
-
-enum class DeviceType { Button, AnalogPreferred, Motion };
-
-/**
- * A class that can be used to get inputs from an input device like controllers without having to
- * poll the device's status yourself
- */
-class DevicePoller {
-public:
-    virtual ~DevicePoller() = default;
-    /// Setup and start polling for inputs, should be called before GetNextInput
-    /// If a device_id is provided, events should be filtered to only include events from this
-    /// device id
-    virtual void Start(const std::string& device_id = "") = 0;
-    /// Stop polling
-    virtual void Stop() = 0;
-    /**
-     * Every call to this function returns the next input recorded since calling Start
-     * @return A ParamPackage of the recorded input, which can be used to create an InputDevice.
-     *         If there has been no input, the package is empty
-     */
-    virtual Common::ParamPackage GetNextInput() = 0;
-};
+/// Type of input desired for mapping purposes
+enum class InputType { None, Button, Stick, Motion, Touch };
 } // namespace Polling
 
-class GCAnalogFactory;
-class GCButtonFactory;
-class UDPMotionFactory;
-class UDPTouchFactory;
-class MouseButtonFactory;
-class MouseAnalogFactory;
-class MouseMotionFactory;
-class MouseTouchFactory;
-class TasButtonFactory;
-class TasAnalogFactory;
-class Keyboard;
-
 /**
  * Given a ParamPackage for a Device returned from `GetInputDevices`, attempt to get the default
- * mapping for the device. This is currently only implemented for the SDL backend devices.
+ * mapping for the device.
  */
 using AnalogMapping = std::unordered_map<Settings::NativeAnalog::Values, Common::ParamPackage>;
 using ButtonMapping = std::unordered_map<Settings::NativeButton::Values, Common::ParamPackage>;
@@ -104,20 +74,27 @@ public:
     [[nodiscard]] const Keyboard* GetKeyboard() const;
 
     /// Retrieves the underlying mouse device.
-    [[nodiscard]] MouseInput::Mouse* GetMouse();
+    [[nodiscard]] Mouse* GetMouse();
 
     /// Retrieves the underlying mouse device.
-    [[nodiscard]] const MouseInput::Mouse* GetMouse() const;
+    [[nodiscard]] const Mouse* GetMouse() const;
 
-    /// Retrieves the underlying tas device.
+    /// Retrieves the underlying touch screen device.
+    [[nodiscard]] TouchScreen* GetTouchScreen();
+
+    /// Retrieves the underlying touch screen device.
+    [[nodiscard]] const TouchScreen* GetTouchScreen() const;
+
+    /// Retrieves the underlying tas input device.
     [[nodiscard]] TasInput::Tas* GetTas();
 
-    /// Retrieves the underlying tas device.
+    /// Retrieves the underlying  tas input  device.
     [[nodiscard]] const TasInput::Tas* GetTas() const;
+
     /**
      * Returns all available input devices that this Factory can create a new device with.
-     * Each returned ParamPackage should have a `display` field used for display, a class field for
-     * backends to determine if this backend is meant to service the request and any other
+     * Each returned ParamPackage should have a `display` field used for display, a `engine` field
+     * for backends to determine if this backend is meant to service the request and any other
      * information needed to identify this in the backend later.
      */
     [[nodiscard]] std::vector<Common::ParamPackage> GetInputDevices() const;
@@ -131,83 +108,33 @@ public:
     /// Retrieves the motion mappings for the given device.
     [[nodiscard]] MotionMapping GetMotionMappingForDevice(const Common::ParamPackage& device) const;
 
-    /// Retrieves the underlying GameCube analog handler.
-    [[nodiscard]] GCAnalogFactory* GetGCAnalogs();
+    /// Returns a string contaning the name of the button from the input engine.
+    [[nodiscard]] std::string GetButtonName(const Common::ParamPackage& params) const;
 
-    /// Retrieves the underlying GameCube analog handler.
-    [[nodiscard]] const GCAnalogFactory* GetGCAnalogs() const;
+    /// Returns true if device is a controller.
+    [[nodiscard]] bool IsController(const Common::ParamPackage& params) const;
 
-    /// Retrieves the underlying GameCube button handler.
-    [[nodiscard]] GCButtonFactory* GetGCButtons();
-
-    /// Retrieves the underlying GameCube button handler.
-    [[nodiscard]] const GCButtonFactory* GetGCButtons() const;
-
-    /// Retrieves the underlying udp motion handler.
-    [[nodiscard]] UDPMotionFactory* GetUDPMotions();
-
-    /// Retrieves the underlying udp motion handler.
-    [[nodiscard]] const UDPMotionFactory* GetUDPMotions() const;
-
-    /// Retrieves the underlying udp touch handler.
-    [[nodiscard]] UDPTouchFactory* GetUDPTouch();
-
-    /// Retrieves the underlying udp touch handler.
-    [[nodiscard]] const UDPTouchFactory* GetUDPTouch() const;
-
-    /// Retrieves the underlying mouse button handler.
-    [[nodiscard]] MouseButtonFactory* GetMouseButtons();
-
-    /// Retrieves the underlying mouse button handler.
-    [[nodiscard]] const MouseButtonFactory* GetMouseButtons() const;
-
-    /// Retrieves the underlying mouse analog handler.
-    [[nodiscard]] MouseAnalogFactory* GetMouseAnalogs();
-
-    /// Retrieves the underlying mouse analog handler.
-    [[nodiscard]] const MouseAnalogFactory* GetMouseAnalogs() const;
-
-    /// Retrieves the underlying mouse motion handler.
-    [[nodiscard]] MouseMotionFactory* GetMouseMotions();
-
-    /// Retrieves the underlying mouse motion handler.
-    [[nodiscard]] const MouseMotionFactory* GetMouseMotions() const;
-
-    /// Retrieves the underlying mouse touch handler.
-    [[nodiscard]] MouseTouchFactory* GetMouseTouch();
-
-    /// Retrieves the underlying mouse touch handler.
-    [[nodiscard]] const MouseTouchFactory* GetMouseTouch() const;
-
-    /// Retrieves the underlying tas button handler.
-    [[nodiscard]] TasButtonFactory* GetTasButtons();
-
-    /// Retrieves the underlying tas button handler.
-    [[nodiscard]] const TasButtonFactory* GetTasButtons() const;
-
-    /// Retrieves the underlying tas analogs handler.
-    [[nodiscard]] TasAnalogFactory* GetTasAnalogs();
-
-    /// Retrieves the underlying tas analogs handler.
-    [[nodiscard]] const TasAnalogFactory* GetTasAnalogs() const;
-
-    /// Reloads the input devices
+    /// Reloads the input devices.
     void ReloadInputDevices();
 
-    /// Get all DevicePoller from all backends for a specific device type
-    [[nodiscard]] std::vector<std::unique_ptr<Polling::DevicePoller>> GetPollers(
-        Polling::DeviceType type) const;
+    /// Start polling from all backends for a desired input type.
+    void BeginMapping(Polling::InputType type);
+
+    /// Returns an input event with mapping information.
+    [[nodiscard]] const Common::ParamPackage GetNextInput() const;
+
+    /// Stop polling from all backends.
+    void StopMapping() const;
 
 private:
     struct Impl;
     std::unique_ptr<Impl> impl;
 };
 
-/// Generates a serialized param package for creating a keyboard button device
+/// Generates a serialized param package for creating a keyboard button device.
 std::string GenerateKeyboardParam(int key_code);
 
-/// Generates a serialized param package for creating an analog device taking input from keyboard
+/// Generates a serialized param package for creating an analog device taking input from keyboard.
 std::string GenerateAnalogParamFromKeys(int key_up, int key_down, int key_left, int key_right,
                                         int key_modifier, float modifier_scale);
-
 } // namespace InputCommon

src/yuzu/applets/qt_controller.cpp

@@ -6,8 +6,12 @@
 #include <thread>
 
 #include "common/assert.h"
+#include "common/param_package.h"
 #include "common/string_util.h"
 #include "core/core.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/lock.h"
 #include "core/hle/service/hid/controllers/npad.h"
 #include "core/hle/service/hid/hid.h"
@@ -23,49 +27,32 @@
 
 namespace {
 
-constexpr std::size_t HANDHELD_INDEX = 8;
-
-constexpr std::array<std::array<bool, 4>, 8> led_patterns{{
-    {true, false, false, false},
-    {true, true, false, false},
-    {true, true, true, false},
-    {true, true, true, true},
-    {true, false, false, true},
-    {true, false, true, false},
-    {true, false, true, true},
-    {false, true, true, false},
-}};
-
-void UpdateController(Settings::ControllerType controller_type, std::size_t npad_index,
-                      bool connected, Core::System& system) {
-    if (!system.IsPoweredOn()) {
-        return;
+void UpdateController(Core::HID::EmulatedController* controller,
+                      Core::HID::NpadType controller_type, bool connected) {
+    if (controller->IsConnected()) {
+        controller->Disconnect();
+    }
+    controller->SetNpadType(controller_type);
+    if (connected) {
+        controller->Connect();
     }
-
-    auto& npad =
-        system.ServiceManager()
-            .GetService<Service::HID::Hid>("hid")
-            ->GetAppletResource()
-            ->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad);
-
-    npad.UpdateControllerAt(npad.MapSettingsTypeToNPad(controller_type), npad_index, connected);
 }
 
 // Returns true if the given controller type is compatible with the given parameters.
-bool IsControllerCompatible(Settings::ControllerType controller_type,
+bool IsControllerCompatible(Core::HID::NpadType controller_type,
                             Core::Frontend::ControllerParameters parameters) {
     switch (controller_type) {
-    case Settings::ControllerType::ProController:
+    case Core::HID::NpadType::ProController:
         return parameters.allow_pro_controller;
-    case Settings::ControllerType::DualJoyconDetached:
+    case Core::HID::NpadType::JoyconDual:
         return parameters.allow_dual_joycons;
-    case Settings::ControllerType::LeftJoycon:
+    case Core::HID::NpadType::JoyconLeft:
         return parameters.allow_left_joycon;
-    case Settings::ControllerType::RightJoycon:
+    case Core::HID::NpadType::JoyconRight:
         return parameters.allow_right_joycon;
-    case Settings::ControllerType::Handheld:
+    case Core::HID::NpadType::Handheld:
         return parameters.enable_single_mode && parameters.allow_handheld;
-    case Settings::ControllerType::GameCube:
+    case Core::HID::NpadType::GameCube:
         return parameters.allow_gamecube_controller;
     default:
         return false;
@@ -196,7 +183,7 @@ QtControllerSelectorDialog::QtControllerSelectorDialog(
             connect(emulated_controllers[i], qOverload<int>(&QComboBox::currentIndexChanged),
                     [this, i](int index) {
                         UpdateDockedState(GetControllerTypeFromIndex(index, i) ==
-                                          Settings::ControllerType::Handheld);
+                                          Core::HID::NpadType::Handheld);
                     });
         }
     }
@@ -249,17 +236,17 @@ void QtControllerSelectorDialog::ApplyConfiguration() {
 }
 
 void QtControllerSelectorDialog::LoadConfiguration() {
+    const auto* handheld = system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Handheld);
     for (std::size_t index = 0; index < NUM_PLAYERS; ++index) {
-        const auto connected =
-            Settings::values.players.GetValue()[index].connected ||
-            (index == 0 && Settings::values.players.GetValue()[HANDHELD_INDEX].connected);
+        const auto* controller = system.HIDCore().GetEmulatedControllerByIndex(index);
+        const auto connected = controller->IsConnected() || (index == 0 && handheld->IsConnected());
         player_groupboxes[index]->setChecked(connected);
         connected_controller_checkboxes[index]->setChecked(connected);
-        emulated_controllers[index]->setCurrentIndex(GetIndexFromControllerType(
-            Settings::values.players.GetValue()[index].controller_type, index));
+        emulated_controllers[index]->setCurrentIndex(
+            GetIndexFromControllerType(controller->GetNpadType(), index));
     }
 
-    UpdateDockedState(Settings::values.players.GetValue()[HANDHELD_INDEX].connected);
+    UpdateDockedState(handheld->IsConnected());
 
     ui->vibrationGroup->setChecked(Settings::values.vibration_enabled.GetValue());
     ui->motionGroup->setChecked(Settings::values.motion_enabled.GetValue());
@@ -415,33 +402,32 @@ void QtControllerSelectorDialog::SetEmulatedControllers(std::size_t player_index
     emulated_controllers[player_index]->clear();
 
     pairs.emplace_back(emulated_controllers[player_index]->count(),
-                       Settings::ControllerType::ProController);
+                       Core::HID::NpadType::ProController);
     emulated_controllers[player_index]->addItem(tr("Pro Controller"));
 
     pairs.emplace_back(emulated_controllers[player_index]->count(),
-                       Settings::ControllerType::DualJoyconDetached);
+                       Core::HID::NpadType::JoyconDual);
     emulated_controllers[player_index]->addItem(tr("Dual Joycons"));
 
     pairs.emplace_back(emulated_controllers[player_index]->count(),
-                       Settings::ControllerType::LeftJoycon);
+                       Core::HID::NpadType::JoyconLeft);
     emulated_controllers[player_index]->addItem(tr("Left Joycon"));
 
     pairs.emplace_back(emulated_controllers[player_index]->count(),
-                       Settings::ControllerType::RightJoycon);
+                       Core::HID::NpadType::JoyconRight);
     emulated_controllers[player_index]->addItem(tr("Right Joycon"));
 
     if (player_index == 0) {
         pairs.emplace_back(emulated_controllers[player_index]->count(),
-                           Settings::ControllerType::Handheld);
+                           Core::HID::NpadType::Handheld);
         emulated_controllers[player_index]->addItem(tr("Handheld"));
     }
 
-    pairs.emplace_back(emulated_controllers[player_index]->count(),
-                       Settings::ControllerType::GameCube);
+    pairs.emplace_back(emulated_controllers[player_index]->count(), Core::HID::NpadType::GameCube);
     emulated_controllers[player_index]->addItem(tr("GameCube Controller"));
 }
 
-Settings::ControllerType QtControllerSelectorDialog::GetControllerTypeFromIndex(
+Core::HID::NpadType QtControllerSelectorDialog::GetControllerTypeFromIndex(
     int index, std::size_t player_index) const {
     const auto& pairs = index_controller_type_pairs[player_index];
 
@@ -449,13 +435,13 @@ Settings::ControllerType QtControllerSelectorDialog::GetControllerTypeFromIndex(
                                  [index](const auto& pair) { return pair.first == index; });
 
     if (it == pairs.end()) {
-        return Settings::ControllerType::ProController;
+        return Core::HID::NpadType::ProController;
     }
 
     return it->second;
 }
 
-int QtControllerSelectorDialog::GetIndexFromControllerType(Settings::ControllerType type,
+int QtControllerSelectorDialog::GetIndexFromControllerType(Core::HID::NpadType type,
                                                            std::size_t player_index) const {
     const auto& pairs = index_controller_type_pairs[player_index];
 
@@ -479,16 +465,16 @@ void QtControllerSelectorDialog::UpdateControllerIcon(std::size_t player_index)
     const QString stylesheet = [this, player_index] {
         switch (GetControllerTypeFromIndex(emulated_controllers[player_index]->currentIndex(),
                                            player_index)) {
-        case Settings::ControllerType::ProController:
-        case Settings::ControllerType::GameCube:
+        case Core::HID::NpadType::ProController:
+        case Core::HID::NpadType::GameCube:
             return QStringLiteral("image: url(:/controller/applet_pro_controller%0); ");
-        case Settings::ControllerType::DualJoyconDetached:
+        case Core::HID::NpadType::JoyconDual:
             return QStringLiteral("image: url(:/controller/applet_dual_joycon%0); ");
-        case Settings::ControllerType::LeftJoycon:
+        case Core::HID::NpadType::JoyconLeft:
             return QStringLiteral("image: url(:/controller/applet_joycon_left%0); ");
-        case Settings::ControllerType::RightJoycon:
+        case Core::HID::NpadType::JoyconRight:
             return QStringLiteral("image: url(:/controller/applet_joycon_right%0); ");
-        case Settings::ControllerType::Handheld:
+        case Core::HID::NpadType::Handheld:
             return QStringLiteral("image: url(:/controller/applet_handheld%0); ");
         default:
             return QString{};
@@ -516,54 +502,42 @@ void QtControllerSelectorDialog::UpdateControllerIcon(std::size_t player_index)
 }
 
 void QtControllerSelectorDialog::UpdateControllerState(std::size_t player_index) {
-    auto& player = Settings::values.players.GetValue()[player_index];
+    auto* controller = system.HIDCore().GetEmulatedControllerByIndex(player_index);
 
     const auto controller_type = GetControllerTypeFromIndex(
         emulated_controllers[player_index]->currentIndex(), player_index);
     const auto player_connected = player_groupboxes[player_index]->isChecked() &&
-                                  controller_type != Settings::ControllerType::Handheld;
+                                  controller_type != Core::HID::NpadType::Handheld;
 
-    if (player.controller_type == controller_type && player.connected == player_connected) {
+    if (controller->GetNpadType() == controller_type &&
+        controller->IsConnected() == player_connected) {
         // Set vibration devices in the event that the input device has changed.
         ConfigureVibration::SetVibrationDevices(player_index);
         return;
     }
 
     // Disconnect the controller first.
-    UpdateController(controller_type, player_index, false, system);
-
-    player.controller_type = controller_type;
-    player.connected = player_connected;
+    UpdateController(controller, controller_type, false);
 
     ConfigureVibration::SetVibrationDevices(player_index);
 
     // Handheld
     if (player_index == 0) {
-        auto& handheld = Settings::values.players.GetValue()[HANDHELD_INDEX];
-        if (controller_type == Settings::ControllerType::Handheld) {
-            handheld = player;
+        if (controller_type == Core::HID::NpadType::Handheld) {
+            auto* handheld =
+                system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Handheld);
+            UpdateController(handheld, Core::HID::NpadType::Handheld,
+                             player_groupboxes[player_index]->isChecked());
         }
-        handheld.connected = player_groupboxes[player_index]->isChecked() &&
-                             controller_type == Settings::ControllerType::Handheld;
-        UpdateController(Settings::ControllerType::Handheld, 8, handheld.connected, system);
     }
 
-    if (!player.connected) {
-        return;
-    }
-
-    // This emulates a delay between disconnecting and reconnecting controllers as some games
-    // do not respond to a change in controller type if it was instantaneous.
-    using namespace std::chrono_literals;
-    std::this_thread::sleep_for(60ms);
-
-    UpdateController(controller_type, player_index, player_connected, system);
+    UpdateController(controller, controller_type, player_connected);
 }
 
 void QtControllerSelectorDialog::UpdateLEDPattern(std::size_t player_index) {
     if (!player_groupboxes[player_index]->isChecked() ||
         GetControllerTypeFromIndex(emulated_controllers[player_index]->currentIndex(),
-                                   player_index) == Settings::ControllerType::Handheld) {
+                                   player_index) == Core::HID::NpadType::Handheld) {
         led_patterns_boxes[player_index][0]->setChecked(false);
         led_patterns_boxes[player_index][1]->setChecked(false);
         led_patterns_boxes[player_index][2]->setChecked(false);
@@ -571,10 +545,12 @@ void QtControllerSelectorDialog::UpdateLEDPattern(std::size_t player_index) {
         return;
     }
 
-    led_patterns_boxes[player_index][0]->setChecked(led_patterns[player_index][0]);
-    led_patterns_boxes[player_index][1]->setChecked(led_patterns[player_index][1]);
-    led_patterns_boxes[player_index][2]->setChecked(led_patterns[player_index][2]);
-    led_patterns_boxes[player_index][3]->setChecked(led_patterns[player_index][3]);
+    const auto* controller = system.HIDCore().GetEmulatedControllerByIndex(player_index);
+    const auto led_pattern = controller->GetLedPattern();
+    led_patterns_boxes[player_index][0]->setChecked(led_pattern.position1);
+    led_patterns_boxes[player_index][1]->setChecked(led_pattern.position2);
+    led_patterns_boxes[player_index][2]->setChecked(led_pattern.position3);
+    led_patterns_boxes[player_index][3]->setChecked(led_pattern.position4);
 }
 
 void QtControllerSelectorDialog::UpdateBorderColor(std::size_t player_index) {
@@ -654,10 +630,9 @@ void QtControllerSelectorDialog::DisableUnsupportedPlayers() {
     }
 
     for (std::size_t index = max_supported_players; index < NUM_PLAYERS; ++index) {
+        auto* controller = system.HIDCore().GetEmulatedControllerByIndex(index);
         // Disconnect any unsupported players here and disable or hide them if applicable.
-        Settings::values.players.GetValue()[index].connected = false;
-        UpdateController(Settings::values.players.GetValue()[index].controller_type, index, false,
-                         system);
+        UpdateController(controller, controller->GetNpadType(), false);
         // Hide the player widgets when max_supported_controllers is less than or equal to 4.
         if (max_supported_players <= 4) {
             player_widgets[index]->hide();

src/yuzu/applets/qt_controller.h

@@ -23,14 +23,18 @@ namespace InputCommon {
 class InputSubsystem;
 }
 
-namespace Settings {
-enum class ControllerType;
-}
-
 namespace Ui {
 class QtControllerSelectorDialog;
 }
 
+namespace Core {
+class System;
+}
+
+namespace Core::HID {
+enum class NpadType : u8;
+}
+
 class QtControllerSelectorDialog final : public QDialog {
     Q_OBJECT
 
@@ -70,10 +74,10 @@ private:
     void SetEmulatedControllers(std::size_t player_index);
 
     // Gets the Controller Type for a given controller combobox index per player.
-    Settings::ControllerType GetControllerTypeFromIndex(int index, std::size_t player_index) const;
+    Core::HID::NpadType GetControllerTypeFromIndex(int index, std::size_t player_index) const;
 
     // Gets the controller combobox index for a given Controller Type per player.
-    int GetIndexFromControllerType(Settings::ControllerType type, std::size_t player_index) const;
+    int GetIndexFromControllerType(Core::HID::NpadType type, std::size_t player_index) const;
 
     // Updates the controller icons per player.
     void UpdateControllerIcon(std::size_t player_index);
@@ -135,7 +139,7 @@ private:
     std::array<QComboBox*, NUM_PLAYERS> emulated_controllers;
 
     /// Pairs of emulated controller index and Controller Type enum per player.
-    std::array<std::vector<std::pair<int, Settings::ControllerType>>, NUM_PLAYERS>
+    std::array<std::vector<std::pair<int, Core::HID::NpadType>>, NUM_PLAYERS>
         index_controller_type_pairs;
 
     // Labels representing the number of connected controllers

src/yuzu/applets/qt_software_keyboard.cpp

@@ -10,7 +10,10 @@
 #include "common/settings.h"
 #include "common/string_util.h"
 #include "core/core.h"
-#include "core/frontend/input_interpreter.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/input_interpreter.h"
 #include "ui_qt_software_keyboard.h"
 #include "yuzu/applets/qt_software_keyboard.h"
 #include "yuzu/main.h"
@@ -484,7 +487,7 @@ void QtSoftwareKeyboardDialog::open() {
 void QtSoftwareKeyboardDialog::reject() {
     // Pressing the ESC key in a dialog calls QDialog::reject().
     // We will override this behavior to the "Cancel" action on the software keyboard.
-    TranslateButtonPress(HIDButton::X);
+    TranslateButtonPress(Core::HID::NpadButton::X);
 }
 
 void QtSoftwareKeyboardDialog::keyPressEvent(QKeyEvent* event) {
@@ -722,7 +725,7 @@ void QtSoftwareKeyboardDialog::SetTextDrawType() {
 
         connect(
             ui->line_edit_osk, &QLineEdit::returnPressed, this,
-            [this] { TranslateButtonPress(HIDButton::Plus); }, Qt::QueuedConnection);
+            [this] { TranslateButtonPress(Core::HID::NpadButton::Plus); }, Qt::QueuedConnection);
 
         ui->line_edit_osk->setPlaceholderText(
             QString::fromStdU16String(initialize_parameters.guide_text));
@@ -795,9 +798,10 @@ void QtSoftwareKeyboardDialog::SetTextDrawType() {
 }
 
 void QtSoftwareKeyboardDialog::SetControllerImage() {
-    const auto controller_type = Settings::values.players.GetValue()[8].connected
-                                     ? Settings::values.players.GetValue()[8].controller_type
-                                     : Settings::values.players.GetValue()[0].controller_type;
+    const auto* handheld = system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Handheld);
+    const auto* player_1 = system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Player1);
+    const auto controller_type =
+        handheld->IsConnected() ? handheld->GetNpadType() : player_1->GetNpadType();
 
     const QString theme = [] {
         if (QIcon::themeName().contains(QStringLiteral("dark")) ||
@@ -809,8 +813,8 @@ void QtSoftwareKeyboardDialog::SetControllerImage() {
     }();
 
     switch (controller_type) {
-    case Settings::ControllerType::ProController:
-    case Settings::ControllerType::GameCube:
+    case Core::HID::NpadType::ProController:
+    case Core::HID::NpadType::GameCube:
         ui->icon_controller->setStyleSheet(
             QStringLiteral("image: url(:/overlay/controller_pro%1.png);").arg(theme));
         ui->icon_controller_shift->setStyleSheet(
@@ -818,7 +822,7 @@ void QtSoftwareKeyboardDialog::SetControllerImage() {
         ui->icon_controller_num->setStyleSheet(
             QStringLiteral("image: url(:/overlay/controller_pro%1.png);").arg(theme));
         break;
-    case Settings::ControllerType::DualJoyconDetached:
+    case Core::HID::NpadType::JoyconDual:
         ui->icon_controller->setStyleSheet(
             QStringLiteral("image: url(:/overlay/controller_dual_joycon%1.png);").arg(theme));
         ui->icon_controller_shift->setStyleSheet(
@@ -826,7 +830,7 @@ void QtSoftwareKeyboardDialog::SetControllerImage() {
         ui->icon_controller_num->setStyleSheet(
             QStringLiteral("image: url(:/overlay/controller_dual_joycon%1.png);").arg(theme));
         break;
-    case Settings::ControllerType::LeftJoycon:
+    case Core::HID::NpadType::JoyconLeft:
         ui->icon_controller->setStyleSheet(
             QStringLiteral("image: url(:/overlay/controller_single_joycon_left%1.png);")
                 .arg(theme));
@@ -837,7 +841,7 @@ void QtSoftwareKeyboardDialog::SetControllerImage() {
             QStringLiteral("image: url(:/overlay/controller_single_joycon_left%1.png);")
                 .arg(theme));
         break;
-    case Settings::ControllerType::RightJoycon:
+    case Core::HID::NpadType::JoyconRight:
         ui->icon_controller->setStyleSheet(
             QStringLiteral("image: url(:/overlay/controller_single_joycon_right%1.png);")
                 .arg(theme));
@@ -848,7 +852,7 @@ void QtSoftwareKeyboardDialog::SetControllerImage() {
             QStringLiteral("image: url(:/overlay/controller_single_joycon_right%1.png);")
                 .arg(theme));
         break;
-    case Settings::ControllerType::Handheld:
+    case Core::HID::NpadType::Handheld:
         ui->icon_controller->setStyleSheet(
             QStringLiteral("image: url(:/overlay/controller_handheld%1.png);").arg(theme));
         ui->icon_controller_shift->setStyleSheet(
@@ -1208,9 +1212,9 @@ void QtSoftwareKeyboardDialog::SetupMouseHover() {
     }
 }
 
-template <HIDButton... T>
+template <Core::HID::NpadButton... T>
 void QtSoftwareKeyboardDialog::HandleButtonPressedOnce() {
-    const auto f = [this](HIDButton button) {
+    const auto f = [this](Core::HID::NpadButton button) {
         if (input_interpreter->IsButtonPressedOnce(button)) {
             TranslateButtonPress(button);
         }
@@ -1219,9 +1223,9 @@ void QtSoftwareKeyboardDialog::HandleButtonPressedOnce() {
     (f(T), ...);
 }
 
-template <HIDButton... T>
+template <Core::HID::NpadButton... T>
 void QtSoftwareKeyboardDialog::HandleButtonHold() {
-    const auto f = [this](HIDButton button) {
+    const auto f = [this](Core::HID::NpadButton button) {
         if (input_interpreter->IsButtonHeld(button)) {
             TranslateButtonPress(button);
         }
@@ -1230,9 +1234,9 @@ void QtSoftwareKeyboardDialog::HandleButtonHold() {
     (f(T), ...);
 }
 
-void QtSoftwareKeyboardDialog::TranslateButtonPress(HIDButton button) {
+void QtSoftwareKeyboardDialog::TranslateButtonPress(Core::HID::NpadButton button) {
     switch (button) {
-    case HIDButton::A:
+    case Core::HID::NpadButton::A:
         switch (bottom_osk_index) {
         case BottomOSKIndex::LowerCase:
         case BottomOSKIndex::UpperCase:
@@ -1245,7 +1249,7 @@ void QtSoftwareKeyboardDialog::TranslateButtonPress(HIDButton button) {
             break;
         }
         break;
-    case HIDButton::B:
+    case Core::HID::NpadButton::B:
         switch (bottom_osk_index) {
         case BottomOSKIndex::LowerCase:
             ui->button_backspace->click();
@@ -1260,7 +1264,7 @@ void QtSoftwareKeyboardDialog::TranslateButtonPress(HIDButton button) {
             break;
         }
         break;
-    case HIDButton::X:
+    case Core::HID::NpadButton::X:
         if (is_inline) {
             emit SubmitInlineText(SwkbdReplyType::DecidedCancel, current_text, cursor_position);
         } else {
@@ -1271,7 +1275,7 @@ void QtSoftwareKeyboardDialog::TranslateButtonPress(HIDButton button) {
             emit SubmitNormalText(SwkbdResult::Cancel, std::move(text));
         }
         break;
-    case HIDButton::Y:
+    case Core::HID::NpadButton::Y:
         switch (bottom_osk_index) {
         case BottomOSKIndex::LowerCase:
             ui->button_space->click();
@@ -1284,8 +1288,8 @@ void QtSoftwareKeyboardDialog::TranslateButtonPress(HIDButton button) {
             break;
         }
         break;
-    case HIDButton::LStick:
-    case HIDButton::RStick:
+    case Core::HID::NpadButton::StickL:
+    case Core::HID::NpadButton::StickR:
         switch (bottom_osk_index) {
         case BottomOSKIndex::LowerCase:
             ui->button_shift->click();
@@ -1298,13 +1302,13 @@ void QtSoftwareKeyboardDialog::TranslateButtonPress(HIDButton button) {
             break;
         }
         break;
-    case HIDButton::L:
+    case Core::HID::NpadButton::L:
         MoveTextCursorDirection(Direction::Left);
         break;
-    case HIDButton::R:
+    case Core::HID::NpadButton::R:
         MoveTextCursorDirection(Direction::Right);
         break;
-    case HIDButton::Plus:
+    case Core::HID::NpadButton::Plus:
         switch (bottom_osk_index) {
         case BottomOSKIndex::LowerCase:
             ui->button_ok->click();
@@ -1319,24 +1323,24 @@ void QtSoftwareKeyboardDialog::TranslateButtonPress(HIDButton button) {
             break;
         }
         break;
-    case HIDButton::DLeft:
-    case HIDButton::LStickLeft:
-    case HIDButton::RStickLeft:
+    case Core::HID::NpadButton::Left:
+    case Core::HID::NpadButton::StickLLeft:
+    case Core::HID::NpadButton::StickRLeft:
         MoveButtonDirection(Direction::Left);
         break;
-    case HIDButton::DUp:
-    case HIDButton::LStickUp:
-    case HIDButton::RStickUp:
+    case Core::HID::NpadButton::Up:
+    case Core::HID::NpadButton::StickLUp:
+    case Core::HID::NpadButton::StickRUp:
         MoveButtonDirection(Direction::Up);
         break;
-    case HIDButton::DRight:
-    case HIDButton::LStickRight:
-    case HIDButton::RStickRight:
+    case Core::HID::NpadButton::Right:
+    case Core::HID::NpadButton::StickLRight:
+    case Core::HID::NpadButton::StickRRight:
         MoveButtonDirection(Direction::Right);
         break;
-    case HIDButton::DDown:
-    case HIDButton::LStickDown:
-    case HIDButton::RStickDown:
+    case Core::HID::NpadButton::Down:
+    case Core::HID::NpadButton::StickLDown:
+    case Core::HID::NpadButton::StickRDown:
         MoveButtonDirection(Direction::Down);
         break;
     default:
@@ -1467,19 +1471,25 @@ void QtSoftwareKeyboardDialog::InputThread() {
     while (input_thread_running) {
         input_interpreter->PollInput();
 
-        HandleButtonPressedOnce<HIDButton::A, HIDButton::B, HIDButton::X, HIDButton::Y,
-                                HIDButton::LStick, HIDButton::RStick, HIDButton::L, HIDButton::R,
-                                HIDButton::Plus, HIDButton::DLeft, HIDButton::DUp,
-                                HIDButton::DRight, HIDButton::DDown, HIDButton::LStickLeft,
-                                HIDButton::LStickUp, HIDButton::LStickRight, HIDButton::LStickDown,
-                                HIDButton::RStickLeft, HIDButton::RStickUp, HIDButton::RStickRight,
-                                HIDButton::RStickDown>();
+        HandleButtonPressedOnce<
+            Core::HID::NpadButton::A, Core::HID::NpadButton::B, Core::HID::NpadButton::X,
+            Core::HID::NpadButton::Y, Core::HID::NpadButton::StickL, Core::HID::NpadButton::StickR,
+            Core::HID::NpadButton::L, Core::HID::NpadButton::R, Core::HID::NpadButton::Plus,
+            Core::HID::NpadButton::Left, Core::HID::NpadButton::Up, Core::HID::NpadButton::Right,
+            Core::HID::NpadButton::Down, Core::HID::NpadButton::StickLLeft,
+            Core::HID::NpadButton::StickLUp, Core::HID::NpadButton::StickLRight,
+            Core::HID::NpadButton::StickLDown, Core::HID::NpadButton::StickRLeft,
+            Core::HID::NpadButton::StickRUp, Core::HID::NpadButton::StickRRight,
+            Core::HID::NpadButton::StickRDown>();
 
-        HandleButtonHold<HIDButton::B, HIDButton::L, HIDButton::R, HIDButton::DLeft, HIDButton::DUp,
-                         HIDButton::DRight, HIDButton::DDown, HIDButton::LStickLeft,
-                         HIDButton::LStickUp, HIDButton::LStickRight, HIDButton::LStickDown,
-                         HIDButton::RStickLeft, HIDButton::RStickUp, HIDButton::RStickRight,
-                         HIDButton::RStickDown>();
+        HandleButtonHold<Core::HID::NpadButton::B, Core::HID::NpadButton::L,
+                         Core::HID::NpadButton::R, Core::HID::NpadButton::Left,
+                         Core::HID::NpadButton::Up, Core::HID::NpadButton::Right,
+                         Core::HID::NpadButton::Down, Core::HID::NpadButton::StickLLeft,
+                         Core::HID::NpadButton::StickLUp, Core::HID::NpadButton::StickLRight,
+                         Core::HID::NpadButton::StickLDown, Core::HID::NpadButton::StickRLeft,
+                         Core::HID::NpadButton::StickRUp, Core::HID::NpadButton::StickRRight,
+                         Core::HID::NpadButton::StickRDown>();
 
         std::this_thread::sleep_for(std::chrono::milliseconds(50));
     }

src/yuzu/applets/qt_software_keyboard.h

@@ -14,14 +14,16 @@
 
 #include "core/frontend/applets/software_keyboard.h"
 
-enum class HIDButton : u8;
-
 class InputInterpreter;
 
 namespace Core {
 class System;
 }
 
+namespace Core::HID {
+enum class NpadButton : u64;
+}
+
 namespace Ui {
 class QtSoftwareKeyboardDialog;
 }
@@ -146,7 +148,7 @@ private:
      *
      * @tparam HIDButton The list of buttons that can be converted into keyboard input.
      */
-    template <HIDButton... T>
+    template <Core::HID::NpadButton... T>
     void HandleButtonPressedOnce();
 
     /**
@@ -154,7 +156,7 @@ private:
      *
      * @tparam HIDButton The list of buttons that can be converted into keyboard input.
      */
-    template <HIDButton... T>
+    template <Core::HID::NpadButton... T>
     void HandleButtonHold();
 
     /**
@@ -162,7 +164,7 @@ private:
      *
      * @param button The button press to process.
      */
-    void TranslateButtonPress(HIDButton button);
+    void TranslateButtonPress(Core::HID::NpadButton button);
 
     /**
      * Moves the focus of a button in a certain direction.

src/yuzu/applets/qt_web_browser.cpp

@@ -14,9 +14,11 @@
 #endif
 
 #include "common/fs/path_util.h"
+#include "common/param_package.h"
 #include "core/core.h"
-#include "core/frontend/input_interpreter.h"
-#include "input_common/keyboard.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/input_interpreter.h"
+#include "input_common/drivers/keyboard.h"
 #include "input_common/main.h"
 #include "yuzu/applets/qt_web_browser.h"
 #include "yuzu/applets/qt_web_browser_scripts.h"
@@ -27,19 +29,19 @@
 
 namespace {
 
-constexpr int HIDButtonToKey(HIDButton button) {
+constexpr int HIDButtonToKey(Core::HID::NpadButton button) {
     switch (button) {
-    case HIDButton::DLeft:
-    case HIDButton::LStickLeft:
+    case Core::HID::NpadButton::Left:
+    case Core::HID::NpadButton::StickLLeft:
         return Qt::Key_Left;
-    case HIDButton::DUp:
-    case HIDButton::LStickUp:
+    case Core::HID::NpadButton::Up:
+    case Core::HID::NpadButton::StickLUp:
         return Qt::Key_Up;
-    case HIDButton::DRight:
-    case HIDButton::LStickRight:
+    case Core::HID::NpadButton::Right:
+    case Core::HID::NpadButton::StickLRight:
         return Qt::Key_Right;
-    case HIDButton::DDown:
-    case HIDButton::LStickDown:
+    case Core::HID::NpadButton::Down:
+    case Core::HID::NpadButton::StickLDown:
         return Qt::Key_Down;
     default:
         return 0;
@@ -208,25 +210,25 @@ void QtNXWebEngineView::keyReleaseEvent(QKeyEvent* event) {
     }
 }
 
-template <HIDButton... T>
+template <Core::HID::NpadButton... T>
 void QtNXWebEngineView::HandleWindowFooterButtonPressedOnce() {
-    const auto f = [this](HIDButton button) {
+    const auto f = [this](Core::HID::NpadButton button) {
         if (input_interpreter->IsButtonPressedOnce(button)) {
             page()->runJavaScript(
                 QStringLiteral("yuzu_key_callbacks[%1] == null;").arg(static_cast<u8>(button)),
                 [this, button](const QVariant& variant) {
                     if (variant.toBool()) {
                         switch (button) {
-                        case HIDButton::A:
+                        case Core::HID::NpadButton::A:
                             SendMultipleKeyPressEvents<Qt::Key_A, Qt::Key_Space, Qt::Key_Return>();
                             break;
-                        case HIDButton::B:
+                        case Core::HID::NpadButton::B:
                             SendKeyPressEvent(Qt::Key_B);
                             break;
-                        case HIDButton::X:
+                        case Core::HID::NpadButton::X:
                             SendKeyPressEvent(Qt::Key_X);
                             break;
-                        case HIDButton::Y:
+                        case Core::HID::NpadButton::Y:
                             SendKeyPressEvent(Qt::Key_Y);
                             break;
                         default:
@@ -244,9 +246,9 @@ void QtNXWebEngineView::HandleWindowFooterButtonPressedOnce() {
     (f(T), ...);
 }
 
-template <HIDButton... T>
+template <Core::HID::NpadButton... T>
 void QtNXWebEngineView::HandleWindowKeyButtonPressedOnce() {
-    const auto f = [this](HIDButton button) {
+    const auto f = [this](Core::HID::NpadButton button) {
         if (input_interpreter->IsButtonPressedOnce(button)) {
             SendKeyPressEvent(HIDButtonToKey(button));
         }
@@ -255,9 +257,9 @@ void QtNXWebEngineView::HandleWindowKeyButtonPressedOnce() {
     (f(T), ...);
 }
 
-template <HIDButton... T>
+template <Core::HID::NpadButton... T>
 void QtNXWebEngineView::HandleWindowKeyButtonHold() {
-    const auto f = [this](HIDButton button) {
+    const auto f = [this](Core::HID::NpadButton button) {
         if (input_interpreter->IsButtonHeld(button)) {
             SendKeyPressEvent(HIDButtonToKey(button));
         }
@@ -308,17 +310,21 @@ void QtNXWebEngineView::InputThread() {
     while (input_thread_running) {
         input_interpreter->PollInput();
 
-        HandleWindowFooterButtonPressedOnce<HIDButton::A, HIDButton::B, HIDButton::X, HIDButton::Y,
-                                            HIDButton::L, HIDButton::R>();
+        HandleWindowFooterButtonPressedOnce<Core::HID::NpadButton::A, Core::HID::NpadButton::B,
+                                            Core::HID::NpadButton::X, Core::HID::NpadButton::Y,
+                                            Core::HID::NpadButton::L, Core::HID::NpadButton::R>();
 
-        HandleWindowKeyButtonPressedOnce<HIDButton::DLeft, HIDButton::DUp, HIDButton::DRight,
-                                         HIDButton::DDown, HIDButton::LStickLeft,
-                                         HIDButton::LStickUp, HIDButton::LStickRight,
-                                         HIDButton::LStickDown>();
+        HandleWindowKeyButtonPressedOnce<
+            Core::HID::NpadButton::Left, Core::HID::NpadButton::Up, Core::HID::NpadButton::Right,
+            Core::HID::NpadButton::Down, Core::HID::NpadButton::StickLLeft,
+            Core::HID::NpadButton::StickLUp, Core::HID::NpadButton::StickLRight,
+            Core::HID::NpadButton::StickLDown>();
 
-        HandleWindowKeyButtonHold<HIDButton::DLeft, HIDButton::DUp, HIDButton::DRight,
-                                  HIDButton::DDown, HIDButton::LStickLeft, HIDButton::LStickUp,
-                                  HIDButton::LStickRight, HIDButton::LStickDown>();
+        HandleWindowKeyButtonHold<
+            Core::HID::NpadButton::Left, Core::HID::NpadButton::Up, Core::HID::NpadButton::Right,
+            Core::HID::NpadButton::Down, Core::HID::NpadButton::StickLLeft,
+            Core::HID::NpadButton::StickLUp, Core::HID::NpadButton::StickLRight,
+            Core::HID::NpadButton::StickLDown>();
 
         std::this_thread::sleep_for(std::chrono::milliseconds(50));
     }

src/yuzu/applets/qt_web_browser.h

@@ -16,8 +16,6 @@
 
 #include "core/frontend/applets/web_browser.h"
 
-enum class HIDButton : u8;
-
 class GMainWindow;
 class InputInterpreter;
 class UrlRequestInterceptor;
@@ -26,6 +24,10 @@ namespace Core {
 class System;
 }
 
+namespace Core::HID {
+enum class NpadButton : u64;
+}
+
 namespace InputCommon {
 class InputSubsystem;
 }
@@ -114,7 +116,7 @@ private:
      *
      * @tparam HIDButton The list of buttons contained in yuzu_key_callbacks
      */
-    template <HIDButton... T>
+    template <Core::HID::NpadButton... T>
     void HandleWindowFooterButtonPressedOnce();
 
     /**
@@ -123,7 +125,7 @@ private:
      *
      * @tparam HIDButton The list of buttons that can be converted into keyboard input.
      */
-    template <HIDButton... T>
+    template <Core::HID::NpadButton... T>
     void HandleWindowKeyButtonPressedOnce();
 
     /**
@@ -132,7 +134,7 @@ private:
      *
      * @tparam HIDButton The list of buttons that can be converted into keyboard input.
      */
-    template <HIDButton... T>
+    template <Core::HID::NpadButton... T>
     void HandleWindowKeyButtonHold();
 
     /**

src/yuzu/bootmanager.cpp

@@ -27,16 +27,18 @@
 
 #include "common/assert.h"
 #include "common/microprofile.h"
+#include "common/param_package.h"
 #include "common/scm_rev.h"
 #include "common/scope_exit.h"
 #include "common/settings.h"
 #include "core/core.h"
 #include "core/frontend/framebuffer_layout.h"
 #include "core/hle/kernel/k_process.h"
-#include "input_common/keyboard.h"
+#include "input_common/drivers/keyboard.h"
+#include "input_common/drivers/mouse.h"
+#include "input_common/drivers/tas_input.h"
+#include "input_common/drivers/touch_screen.h"
 #include "input_common/main.h"
-#include "input_common/mouse/mouse_input.h"
-#include "input_common/tas/tas_input.h"
 #include "video_core/renderer_base.h"
 #include "video_core/video_core.h"
 #include "yuzu/bootmanager.h"
@@ -297,7 +299,6 @@ GRenderWindow::GRenderWindow(GMainWindow* parent, EmuThread* emu_thread_,
     layout->setContentsMargins(0, 0, 0, 0);
     setLayout(layout);
     input_subsystem->Initialize();
-
     this->setMouseTracking(true);
 
     connect(this, &GRenderWindow::FirstFrameDisplayed, parent, &GMainWindow::OnLoadComplete);
@@ -396,22 +397,22 @@ void GRenderWindow::keyReleaseEvent(QKeyEvent* event) {
     }
 }
 
-MouseInput::MouseButton GRenderWindow::QtButtonToMouseButton(Qt::MouseButton button) {
+InputCommon::MouseButton GRenderWindow::QtButtonToMouseButton(Qt::MouseButton button) {
     switch (button) {
     case Qt::LeftButton:
-        return MouseInput::MouseButton::Left;
+        return InputCommon::MouseButton::Left;
     case Qt::RightButton:
-        return MouseInput::MouseButton::Right;
+        return InputCommon::MouseButton::Right;
     case Qt::MiddleButton:
-        return MouseInput::MouseButton::Wheel;
+        return InputCommon::MouseButton::Wheel;
     case Qt::BackButton:
-        return MouseInput::MouseButton::Backward;
+        return InputCommon::MouseButton::Backward;
     case Qt::ForwardButton:
-        return MouseInput::MouseButton::Forward;
+        return InputCommon::MouseButton::Forward;
     case Qt::TaskButton:
-        return MouseInput::MouseButton::Task;
+        return InputCommon::MouseButton::Task;
     default:
-        return MouseInput::MouseButton::Extra;
+        return InputCommon::MouseButton::Extra;
     }
 }
 
@@ -424,12 +425,9 @@ void GRenderWindow::mousePressEvent(QMouseEvent* event) {
     // coordinates and map them to the current render area
     const auto pos = mapFromGlobal(QCursor::pos());
     const auto [x, y] = ScaleTouch(pos);
+    const auto [touch_x, touch_y] = MapToTouchScreen(x, y);
     const auto button = QtButtonToMouseButton(event->button());
-    input_subsystem->GetMouse()->PressButton(x, y, button);
-
-    if (event->button() == Qt::LeftButton) {
-        this->TouchPressed(x, y, 0);
-    }
+    input_subsystem->GetMouse()->PressButton(x, y, touch_x, touch_y, button);
 
     emit MouseActivity();
 }
@@ -443,10 +441,10 @@ void GRenderWindow::mouseMoveEvent(QMouseEvent* event) {
     // coordinates and map them to the current render area
     const auto pos = mapFromGlobal(QCursor::pos());
     const auto [x, y] = ScaleTouch(pos);
+    const auto [touch_x, touch_y] = MapToTouchScreen(x, y);
     const int center_x = width() / 2;
     const int center_y = height() / 2;
-    input_subsystem->GetMouse()->MouseMove(x, y, center_x, center_y);
-    this->TouchMoved(x, y, 0);
+    input_subsystem->GetMouse()->MouseMove(x, y, touch_x, touch_y, center_x, center_y);
 
     if (Settings::values.mouse_panning) {
         QCursor::setPos(mapToGlobal({center_x, center_y}));
@@ -463,10 +461,6 @@ void GRenderWindow::mouseReleaseEvent(QMouseEvent* event) {
 
     const auto button = QtButtonToMouseButton(event->button());
     input_subsystem->GetMouse()->ReleaseButton(button);
-
-    if (event->button() == Qt::LeftButton) {
-        this->TouchReleased(0);
-    }
 }
 
 void GRenderWindow::TouchBeginEvent(const QTouchEvent* event) {
@@ -489,7 +483,7 @@ void GRenderWindow::TouchUpdateEvent(const QTouchEvent* event) {
     for (std::size_t id = 0; id < touch_ids.size(); ++id) {
         if (!TouchExist(touch_ids[id], touch_points)) {
             touch_ids[id] = 0;
-            this->TouchReleased(id + 1);
+            input_subsystem->GetTouchScreen()->TouchReleased(id);
         }
     }
 }
@@ -498,28 +492,28 @@ void GRenderWindow::TouchEndEvent() {
     for (std::size_t id = 0; id < touch_ids.size(); ++id) {
         if (touch_ids[id] != 0) {
             touch_ids[id] = 0;
-            this->TouchReleased(id + 1);
+            input_subsystem->GetTouchScreen()->TouchReleased(id);
         }
     }
 }
 
-bool GRenderWindow::TouchStart(const QTouchEvent::TouchPoint& touch_point) {
+void GRenderWindow::TouchStart(const QTouchEvent::TouchPoint& touch_point) {
     for (std::size_t id = 0; id < touch_ids.size(); ++id) {
         if (touch_ids[id] == 0) {
             touch_ids[id] = touch_point.id() + 1;
             const auto [x, y] = ScaleTouch(touch_point.pos());
-            this->TouchPressed(x, y, id + 1);
-            return true;
+            const auto [touch_x, touch_y] = MapToTouchScreen(x, y);
+            input_subsystem->GetTouchScreen()->TouchPressed(touch_x, touch_y, id);
         }
     }
-    return false;
 }
 
 bool GRenderWindow::TouchUpdate(const QTouchEvent::TouchPoint& touch_point) {
     for (std::size_t id = 0; id < touch_ids.size(); ++id) {
         if (touch_ids[id] == static_cast<std::size_t>(touch_point.id() + 1)) {
             const auto [x, y] = ScaleTouch(touch_point.pos());
-            this->TouchMoved(x, y, id + 1);
+            const auto [touch_x, touch_y] = MapToTouchScreen(x, y);
+            input_subsystem->GetTouchScreen()->TouchMoved(touch_x, touch_y, id);
             return true;
         }
     }
@@ -552,7 +546,7 @@ void GRenderWindow::focusOutEvent(QFocusEvent* event) {
     QWidget::focusOutEvent(event);
     input_subsystem->GetKeyboard()->ReleaseAllKeys();
     input_subsystem->GetMouse()->ReleaseAllButtons();
-    this->TouchReleased(0);
+    input_subsystem->GetTouchScreen()->ReleaseAllTouch();
 }
 
 void GRenderWindow::resizeEvent(QResizeEvent* event) {

src/yuzu/bootmanager.h

@@ -30,11 +30,8 @@ class System;
 
 namespace InputCommon {
 class InputSubsystem;
-}
-
-namespace MouseInput {
 enum class MouseButton;
-}
+} // namespace InputCommon
 
 namespace VideoCore {
 enum class LoadCallbackStage;
@@ -161,7 +158,7 @@ public:
     void keyReleaseEvent(QKeyEvent* event) override;
 
     /// Converts a Qt mouse button into MouseInput mouse button
-    static MouseInput::MouseButton QtButtonToMouseButton(Qt::MouseButton button);
+    static InputCommon::MouseButton QtButtonToMouseButton(Qt::MouseButton button);
 
     void mousePressEvent(QMouseEvent* event) override;
     void mouseMoveEvent(QMouseEvent* event) override;
@@ -209,7 +206,7 @@ private:
     void TouchUpdateEvent(const QTouchEvent* event);
     void TouchEndEvent();
 
-    bool TouchStart(const QTouchEvent::TouchPoint& touch_point);
+    void TouchStart(const QTouchEvent::TouchPoint& touch_point);
     bool TouchUpdate(const QTouchEvent::TouchPoint& touch_point);
     bool TouchExist(std::size_t id, const QList<QTouchEvent::TouchPoint>& touch_points) const;
 

src/yuzu/configuration/config.cpp

@@ -11,7 +11,6 @@
 #include "core/hle/service/acc/profile_manager.h"
 #include "core/hle/service/hid/controllers/npad.h"
 #include "input_common/main.h"
-#include "input_common/udp/client.h"
 #include "yuzu/configuration/config.h"
 
 namespace FS = Common::FS;
@@ -574,7 +573,6 @@ void Config::ReadControlValues() {
 
     ReadBasicSetting(Settings::values.tas_enable);
     ReadBasicSetting(Settings::values.tas_loop);
-    ReadBasicSetting(Settings::values.tas_swap_controllers);
     ReadBasicSetting(Settings::values.pause_tas_on_load);
 
     ReadGlobalSetting(Settings::values.use_docked_mode);
@@ -1210,7 +1208,6 @@ void Config::SaveControlValues() {
 
     WriteBasicSetting(Settings::values.tas_enable);
     WriteBasicSetting(Settings::values.tas_loop);
-    WriteBasicSetting(Settings::values.tas_swap_controllers);
     WriteBasicSetting(Settings::values.pause_tas_on_load);
 
     qt_config->endGroup();

src/yuzu/configuration/configure_dialog.cpp

@@ -74,7 +74,7 @@ ConfigureDialog::ConfigureDialog(QWidget* parent, HotkeyRegistry& registry,
     hotkeys_tab->Populate(registry);
     setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
 
-    input_tab->Initialize(input_subsystem);
+    input_tab->Initialize(input_subsystem, system_);
 
     general_tab->SetResetCallback([&] { this->close(); });
 

src/yuzu/configuration/configure_input.cpp

@@ -73,7 +73,7 @@ ConfigureInput::ConfigureInput(Core::System& system_, QWidget* parent)
 
 ConfigureInput::~ConfigureInput() = default;
 
-void ConfigureInput::Initialize(InputCommon::InputSubsystem* input_subsystem,
+void ConfigureInput::Initialize(InputCommon::InputSubsystem* input_subsystem, Core::System& system,
                                 std::size_t max_players) {
     player_controllers = {
         new ConfigureInputPlayer(this, 0, ui->consoleInputSettings, input_subsystem, profiles.get(),
@@ -114,6 +114,7 @@ void ConfigureInput::Initialize(InputCommon::InputSubsystem* input_subsystem,
         player_tabs[i]->setLayout(new QHBoxLayout(player_tabs[i]));
         player_tabs[i]->layout()->addWidget(player_controllers[i]);
         connect(player_controllers[i], &ConfigureInputPlayer::Connected, [&, i](bool is_connected) {
+            // Ensures that the controllers are always connected in sequential order
             if (is_connected) {
                 for (std::size_t index = 0; index <= i; ++index) {
                     player_connected[index]->setChecked(is_connected);
@@ -146,9 +147,10 @@ void ConfigureInput::Initialize(InputCommon::InputSubsystem* input_subsystem,
     advanced = new ConfigureInputAdvanced(this);
     ui->tabAdvanced->setLayout(new QHBoxLayout(ui->tabAdvanced));
     ui->tabAdvanced->layout()->addWidget(advanced);
-    connect(advanced, &ConfigureInputAdvanced::CallDebugControllerDialog, [this, input_subsystem] {
-        CallConfigureDialog<ConfigureDebugController>(*this, input_subsystem, profiles.get(),
-                                                      system);
+    connect(advanced, &ConfigureInputAdvanced::CallDebugControllerDialog,
+            [this, input_subsystem, &system] {
+                CallConfigureDialog<ConfigureDebugController>(*this, input_subsystem,
+                                                              profiles.get(), system);
             });
     connect(advanced, &ConfigureInputAdvanced::CallMouseConfigDialog, [this, input_subsystem] {
         CallConfigureDialog<ConfigureMouseAdvanced>(*this, input_subsystem);
@@ -184,22 +186,8 @@ QList<QWidget*> ConfigureInput::GetSubTabs() const {
 void ConfigureInput::ApplyConfiguration() {
     for (auto* controller : player_controllers) {
         controller->ApplyConfiguration();
-        controller->TryDisconnectSelectedController();
     }
 
-    // This emulates a delay between disconnecting and reconnecting controllers as some games
-    // do not respond to a change in controller type if it was instantaneous.
-    using namespace std::chrono_literals;
-    std::this_thread::sleep_for(150ms);
-
-    for (auto* controller : player_controllers) {
-        controller->TryConnectSelectedController();
-    }
-
-    // This emulates a delay between disconnecting and reconnecting controllers as some games
-    // do not respond to a change in controller type if it was instantaneous.
-    std::this_thread::sleep_for(150ms);
-
     advanced->ApplyConfiguration();
 
     const bool pre_docked_mode = Settings::values.use_docked_mode.GetValue();
@@ -223,8 +211,10 @@ void ConfigureInput::RetranslateUI() {
 }
 
 void ConfigureInput::LoadConfiguration() {
+    const auto* handheld = system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Handheld);
+
     LoadPlayerControllerIndices();
-    UpdateDockedState(Settings::values.players.GetValue()[8].connected);
+    UpdateDockedState(handheld->IsConnected());
 
     ui->vibrationGroup->setChecked(Settings::values.vibration_enabled.GetValue());
     ui->motionGroup->setChecked(Settings::values.motion_enabled.GetValue());
@@ -232,9 +222,16 @@ void ConfigureInput::LoadConfiguration() {
 
 void ConfigureInput::LoadPlayerControllerIndices() {
     for (std::size_t i = 0; i < player_connected.size(); ++i) {
-        const auto connected = Settings::values.players.GetValue()[i].connected ||
-                               (i == 0 && Settings::values.players.GetValue()[8].connected);
-        player_connected[i]->setChecked(connected);
+        if (i == 0) {
+            auto* handheld =
+                system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Handheld);
+            if (handheld->IsConnected()) {
+                player_connected[i]->setChecked(true);
+                continue;
+            }
+        }
+        const auto* controller = system.HIDCore().GetEmulatedControllerByIndex(i);
+        player_connected[i]->setChecked(controller->IsConnected());
     }
 }
 

src/yuzu/configuration/configure_input.h

@@ -42,7 +42,8 @@ public:
     ~ConfigureInput() override;
 
     /// Initializes the input dialog with the given input subsystem.
-    void Initialize(InputCommon::InputSubsystem* input_subsystem_, std::size_t max_players = 8);
+    void Initialize(InputCommon::InputSubsystem* input_subsystem_, Core::System& system,
+                    std::size_t max_players = 8);
 
     /// Save all button configurations to settings file.
     void ApplyConfiguration();

src/yuzu/configuration/configure_input_player.h

@@ -38,14 +38,22 @@ class InputSubsystem;
 }
 
 namespace InputCommon::Polling {
-class DevicePoller;
-enum class DeviceType;
+enum class InputType;
 } // namespace InputCommon::Polling
 
 namespace Ui {
 class ConfigureInputPlayer;
 }
 
+namespace Core {
+class System;
+}
+
+namespace Core::HID {
+class EmulatedController;
+enum class NpadType : u8;
+} // namespace Core::HID
+
 class ConfigureInputPlayer : public QWidget {
     Q_OBJECT
 
@@ -59,18 +67,6 @@ public:
     /// Save all button configurations to settings file.
     void ApplyConfiguration();
 
-    /**
-     * Attempts to connect the currently selected controller in the HID backend.
-     * This function will not do anything if it is not connected in the frontend.
-     */
-    void TryConnectSelectedController();
-
-    /**
-     * Attempts to disconnect the currently selected controller in the HID backend.
-     * This function will not do anything if the configuration has not changed.
-     */
-    void TryDisconnectSelectedController();
-
     /// Set the connection state checkbox (used to sync state).
     void ConnectPlayer(bool connected);
 
@@ -104,6 +100,10 @@ protected:
     void showEvent(QShowEvent* event) override;
 
 private:
+    QString ButtonToText(const Common::ParamPackage& param);
+
+    QString AnalogToText(const Common::ParamPackage& param, const std::string& dir);
+
     void changeEvent(QEvent* event) override;
     void RetranslateUI();
 
@@ -113,7 +113,7 @@ private:
     /// Called when the button was pressed.
     void HandleClick(QPushButton* button, std::size_t button_id,
                      std::function<void(const Common::ParamPackage&)> new_input_setter,
-                     InputCommon::Polling::DeviceType type);
+                     InputCommon::Polling::InputType type);
 
     /// Finish polling and configure input using the input_setter.
     void SetPollingResult(const Common::ParamPackage& params, bool abort);
@@ -134,17 +134,14 @@ private:
     void SetConnectableControllers();
 
     /// Gets the Controller Type for a given controller combobox index.
-    Settings::ControllerType GetControllerTypeFromIndex(int index) const;
+    Core::HID::NpadType GetControllerTypeFromIndex(int index) const;
 
     /// Gets the controller combobox index for a given Controller Type.
-    int GetIndexFromControllerType(Settings::ControllerType type) const;
+    int GetIndexFromControllerType(Core::HID::NpadType type) const;
 
     /// Update the available input devices.
     void UpdateInputDevices();
 
-    /// Update the current controller icon.
-    void UpdateControllerIcon();
-
     /// Hides and disables controller settings based on the current controller type.
     void UpdateControllerAvailableButtons();
 
@@ -185,7 +182,7 @@ private:
     std::unique_ptr<QTimer> poll_timer;
 
     /// Stores a pair of "Connected Controllers" combobox index and Controller Type enum.
-    std::vector<std::pair<int, Settings::ControllerType>> index_controller_type_pairs;
+    std::vector<std::pair<int, Core::HID::NpadType>> index_controller_type_pairs;
 
     static constexpr int PLAYER_COUNT = 8;
     std::array<QCheckBox*, PLAYER_COUNT> player_connected_checkbox;
@@ -193,9 +190,7 @@ private:
     /// This will be the the setting function when an input is awaiting configuration.
     std::optional<std::function<void(const Common::ParamPackage&)>> input_setter;
 
-    std::array<Common::ParamPackage, Settings::NativeButton::NumButtons> buttons_param;
-    std::array<Common::ParamPackage, Settings::NativeAnalog::NumAnalogs> analogs_param;
-    std::array<Common::ParamPackage, Settings::NativeMotion::NumMotions> motions_param;
+    Core::HID::EmulatedController* emulated_controller;
 
     static constexpr int ANALOG_SUB_BUTTONS_NUM = 4;
 
@@ -221,15 +216,9 @@ private:
 
     static const std::array<std::string, ANALOG_SUB_BUTTONS_NUM> analog_sub_buttons;
 
-    std::vector<std::unique_ptr<InputCommon::Polling::DevicePoller>> device_pollers;
-
     /// A flag to indicate that the "Map Analog Stick" pop-up has been shown and accepted once.
     bool map_analog_stick_accepted{};
 
-    /// A flag to indicate if keyboard keys are okay when configuring an input. If this is false,
-    /// keyboard events are ignored.
-    bool want_keyboard_mouse{};
-
     /// List of physical devices users can map with. If a SDL backed device is selected, then you
     /// can use this device to get a default mapping.
     std::vector<Common::ParamPackage> input_devices;

src/yuzu/configuration/configure_input_player.ui

@@ -89,31 +89,6 @@
               <height>21</height>
              </size>
             </property>
-            <item>
-             <property name="text">
-              <string>Pro Controller</string>
-             </property>
-            </item>
-            <item>
-             <property name="text">
-              <string>Dual Joycons</string>
-             </property>
-            </item>
-            <item>
-             <property name="text">
-              <string>Left Joycon</string>
-             </property>
-            </item>
-            <item>
-             <property name="text">
-              <string>Right Joycon</string>
-             </property>
-            </item>
-            <item>
-             <property name="text">
-              <string>Handheld</string>
-             </property>
-            </item>
            </widget>
           </item>
          </layout>
@@ -148,16 +123,6 @@
               <height>21</height>
              </size>
             </property>
-            <item>
-             <property name="text">
-              <string>Any</string>
-             </property>
-            </item>
-            <item>
-             <property name="text">
-              <string>Keyboard/Mouse</string>
-             </property>
-            </item>
            </widget>
           </item>
           <item>

src/yuzu/configuration/configure_input_player_widget.h

@@ -7,9 +7,11 @@
 #include <array>
 #include <QFrame>
 #include <QPointer>
+#include "common/input.h"
 #include "common/settings.h"
-#include "core/frontend/input.h"
-#include "yuzu/debugger/controller.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 
 class QLabel;
 
@@ -24,17 +26,26 @@ public:
     explicit PlayerControlPreview(QWidget* parent);
     ~PlayerControlPreview() override;
 
-    void SetPlayerInput(std::size_t index, const ButtonParam& buttons_param,
-                        const AnalogParam& analogs_param);
-    void SetPlayerInputRaw(std::size_t index, const Settings::ButtonsRaw& buttons_,
-                           Settings::AnalogsRaw analogs_);
-    void SetConnectedStatus(bool checked);
-    void SetControllerType(Settings::ControllerType type);
+    // Sets the emulated controller to be displayed
+    void SetController(Core::HID::EmulatedController* controller);
+
+    // Disables events from the emulated controller
+    void UnloadController();
+
+    // Starts blinking animation at the button specified
     void BeginMappingButton(std::size_t button_id);
-    void BeginMappingAnalog(std::size_t button_id);
+
+    // Starts moving animation at the stick specified
+    void BeginMappingAnalog(std::size_t stick_id);
+
+    // Stops any ongoing animation
     void EndMapping();
+
+    // Handles emulated controller events
+    void ControllerUpdate(Core::HID::ControllerTriggerType type);
+
+    // Updates input on sheduled interval
     void UpdateInput();
-    void SetCallBack(ControllerCallback callback_);
 
 protected:
     void paintEvent(QPaintEvent* event) override;
@@ -63,22 +74,6 @@ private:
         SR,
     };
 
-    struct AxisValue {
-        QPointF value{};
-        QPointF raw_value{};
-        Input::AnalogProperties properties{};
-        int size{};
-        QPoint offset{};
-        bool active{};
-    };
-
-    struct LedPattern {
-        bool position1;
-        bool position2;
-        bool position3;
-        bool position4;
-    };
-
     struct ColorMapping {
         QColor outline{};
         QColor primary{};
@@ -101,7 +96,6 @@ private:
         QColor deadzone{};
     };
 
-    static LedPattern GetColorPattern(std::size_t index, bool player_on);
     void UpdateColors();
     void ResetInputs();
 
@@ -122,47 +116,75 @@ private:
     void DrawGCBody(QPainter& p, QPointF center);
 
     // Draw triggers functions
-    void DrawProTriggers(QPainter& p, QPointF center, bool left_pressed, bool right_pressed);
-    void DrawGCTriggers(QPainter& p, QPointF center, bool left_pressed, bool right_pressed);
-    void DrawHandheldTriggers(QPainter& p, QPointF center, bool left_pressed, bool right_pressed);
-    void DrawDualTriggers(QPainter& p, QPointF center, bool left_pressed, bool right_pressed);
-    void DrawDualTriggersTopView(QPainter& p, QPointF center, bool left_pressed,
-                                 bool right_pressed);
-    void DrawDualZTriggersTopView(QPainter& p, QPointF center, bool left_pressed,
-                                  bool right_pressed);
-    void DrawLeftTriggers(QPainter& p, QPointF center, bool left_pressed);
-    void DrawLeftZTriggers(QPainter& p, QPointF center, bool left_pressed);
-    void DrawLeftTriggersTopView(QPainter& p, QPointF center, bool left_pressed);
-    void DrawLeftZTriggersTopView(QPainter& p, QPointF center, bool left_pressed);
-    void DrawRightTriggers(QPainter& p, QPointF center, bool right_pressed);
-    void DrawRightZTriggers(QPainter& p, QPointF center, bool right_pressed);
-    void DrawRightTriggersTopView(QPainter& p, QPointF center, bool right_pressed);
-    void DrawRightZTriggersTopView(QPainter& p, QPointF center, bool right_pressed);
+    void DrawProTriggers(QPainter& p, QPointF center,
+                         const Common::Input::ButtonStatus& left_pressed,
+                         const Common::Input::ButtonStatus& right_pressed);
+    void DrawGCTriggers(QPainter& p, QPointF center, Common::Input::TriggerStatus left_trigger,
+                        Common::Input::TriggerStatus right_trigger);
+    void DrawHandheldTriggers(QPainter& p, QPointF center,
+                              const Common::Input::ButtonStatus& left_pressed,
+                              const Common::Input::ButtonStatus& right_pressed);
+    void DrawDualTriggers(QPainter& p, QPointF center,
+                          const Common::Input::ButtonStatus& left_pressed,
+                          const Common::Input::ButtonStatus& right_pressed);
+    void DrawDualTriggersTopView(QPainter& p, QPointF center,
+                                 const Common::Input::ButtonStatus& left_pressed,
+                                 const Common::Input::ButtonStatus& right_pressed);
+    void DrawDualZTriggersTopView(QPainter& p, QPointF center,
+                                  const Common::Input::ButtonStatus& left_pressed,
+                                  const Common::Input::ButtonStatus& right_pressed);
+    void DrawLeftTriggers(QPainter& p, QPointF center,
+                          const Common::Input::ButtonStatus& left_pressed);
+    void DrawLeftZTriggers(QPainter& p, QPointF center,
+                           const Common::Input::ButtonStatus& left_pressed);
+    void DrawLeftTriggersTopView(QPainter& p, QPointF center,
+                                 const Common::Input::ButtonStatus& left_pressed);
+    void DrawLeftZTriggersTopView(QPainter& p, QPointF center,
+                                  const Common::Input::ButtonStatus& left_pressed);
+    void DrawRightTriggers(QPainter& p, QPointF center,
+                           const Common::Input::ButtonStatus& right_pressed);
+    void DrawRightZTriggers(QPainter& p, QPointF center,
+                            const Common::Input::ButtonStatus& right_pressed);
+    void DrawRightTriggersTopView(QPainter& p, QPointF center,
+                                  const Common::Input::ButtonStatus& right_pressed);
+    void DrawRightZTriggersTopView(QPainter& p, QPointF center,
+                                   const Common::Input::ButtonStatus& right_pressed);
 
     // Draw joystick functions
-    void DrawJoystick(QPainter& p, QPointF center, float size, bool pressed);
-    void DrawJoystickSideview(QPainter& p, QPointF center, float angle, float size, bool pressed);
+    void DrawJoystick(QPainter& p, QPointF center, float size,
+                      const Common::Input::ButtonStatus& pressed);
+    void DrawJoystickSideview(QPainter& p, QPointF center, float angle, float size,
+                              const Common::Input::ButtonStatus& pressed);
     void DrawRawJoystick(QPainter& p, QPointF center_left, QPointF center_right);
     void DrawJoystickProperties(QPainter& p, QPointF center,
-                                const Input::AnalogProperties& properties);
-    void DrawJoystickDot(QPainter& p, QPointF center, QPointF value,
-                         const Input::AnalogProperties& properties);
-    void DrawProJoystick(QPainter& p, QPointF center, QPointF offset, float scalar, bool pressed);
-    void DrawGCJoystick(QPainter& p, QPointF center, bool pressed);
+                                const Common::Input::AnalogProperties& properties);
+    void DrawJoystickDot(QPainter& p, QPointF center, const Common::Input::StickStatus& stick,
+                         bool raw);
+    void DrawProJoystick(QPainter& p, QPointF center, QPointF offset, float scalar,
+                         const Common::Input::ButtonStatus& pressed);
+    void DrawGCJoystick(QPainter& p, QPointF center, const Common::Input::ButtonStatus& pressed);
 
     // Draw button functions
-    void DrawCircleButton(QPainter& p, QPointF center, bool pressed, float button_size);
-    void DrawRoundButton(QPainter& p, QPointF center, bool pressed, float width, float height,
-                         Direction direction = Direction::None, float radius = 2);
-    void DrawMinusButton(QPainter& p, QPointF center, bool pressed, int button_size);
-    void DrawPlusButton(QPainter& p, QPointF center, bool pressed, int button_size);
-    void DrawGCButtonX(QPainter& p, QPointF center, bool pressed);
-    void DrawGCButtonY(QPainter& p, QPointF center, bool pressed);
-    void DrawGCButtonZ(QPainter& p, QPointF center, bool pressed);
+    void DrawCircleButton(QPainter& p, QPointF center, const Common::Input::ButtonStatus& pressed,
+                          float button_size);
+    void DrawRoundButton(QPainter& p, QPointF center, const Common::Input::ButtonStatus& pressed,
+                         float width, float height, Direction direction = Direction::None,
+                         float radius = 2);
+    void DrawMinusButton(QPainter& p, QPointF center, const Common::Input::ButtonStatus& pressed,
+                         int button_size);
+    void DrawPlusButton(QPainter& p, QPointF center, const Common::Input::ButtonStatus& pressed,
+                        int button_size);
+    void DrawGCButtonX(QPainter& p, QPointF center, const Common::Input::ButtonStatus& pressed);
+    void DrawGCButtonY(QPainter& p, QPointF center, const Common::Input::ButtonStatus& pressed);
+    void DrawGCButtonZ(QPainter& p, QPointF center, const Common::Input::ButtonStatus& pressed);
     void DrawArrowButtonOutline(QPainter& p, const QPointF center, float size = 1.0f);
-    void DrawArrowButton(QPainter& p, QPointF center, Direction direction, bool pressed,
-                         float size = 1.0f);
-    void DrawTriggerButton(QPainter& p, QPointF center, Direction direction, bool pressed);
+    void DrawArrowButton(QPainter& p, QPointF center, Direction direction,
+                         const Common::Input::ButtonStatus& pressed, float size = 1.0f);
+    void DrawTriggerButton(QPainter& p, QPointF center, Direction direction,
+                           const Common::Input::ButtonStatus& pressed);
+
+    // Draw battery functions
+    void DrawBattery(QPainter& p, QPointF center, Common::Input::BatteryLevel battery);
 
     // Draw icon functions
     void DrawSymbol(QPainter& p, QPointF center, Symbol symbol, float icon_size);
@@ -178,24 +200,23 @@ private:
     void SetTextFont(QPainter& p, float text_size,
                      const QString& font_family = QStringLiteral("sans-serif"));
 
-    using ButtonArray =
-        std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeButton::BUTTON_NS_END>;
-    using StickArray =
-        std::array<std::unique_ptr<Input::AnalogDevice>, Settings::NativeAnalog::NUM_STICKS_HID>;
+    bool is_controller_set{};
+    bool is_connected{};
+    bool needs_redraw{};
+    Core::HID::NpadType controller_type;
 
-    ControllerCallback controller_callback;
-    bool is_enabled{};
     bool mapping_active{};
     int blink_counter{};
+    int callback_key;
     QColor button_color{};
     ColorMapping colors{};
-    std::array<QColor, 4> led_color{};
-    ButtonArray buttons{};
-    StickArray sticks{};
+    Core::HID::LedPattern led_pattern{0, 0, 0, 0};
     std::size_t player_index{};
-    std::size_t button_mapping_index{Settings::NativeButton::BUTTON_NS_END};
-    std::size_t analog_mapping_index{Settings::NativeAnalog::NUM_STICKS_HID};
-    std::array<AxisValue, Settings::NativeAnalog::NUM_STICKS_HID> axis_values{};
-    std::array<bool, Settings::NativeButton::NumButtons> button_values{};
-    Settings::ControllerType controller_type{Settings::ControllerType::ProController};
+    Core::HID::EmulatedController* controller;
+    std::size_t button_mapping_index{Settings::NativeButton::NumButtons};
+    std::size_t analog_mapping_index{Settings::NativeAnalog::NumAnalogs};
+    Core::HID::ButtonValues button_values{};
+    Core::HID::SticksValues stick_values{};
+    Core::HID::TriggerValues trigger_values{};
+    Core::HID::BatteryValues battery_values{};
 };

src/yuzu/configuration/configure_motion_touch.cpp

@@ -15,9 +15,9 @@
 
 #include "common/logging/log.h"
 #include "common/settings.h"
+#include "input_common/drivers/udp_client.h"
+#include "input_common/helpers/udp_protocol.h"
 #include "input_common/main.h"
-#include "input_common/udp/client.h"
-#include "input_common/udp/udp.h"
 #include "ui_configure_motion_touch.h"
 #include "yuzu/configuration/configure_motion_touch.h"
 #include "yuzu/configuration/configure_touch_from_button.h"

src/yuzu/configuration/configure_mouse_advanced.cpp

@@ -11,8 +11,11 @@
 
 #include "common/assert.h"
 #include "common/param_package.h"
+#include "input_common/drivers/keyboard.h"
+#include "input_common/drivers/mouse.h"
 #include "input_common/main.h"
 #include "ui_configure_mouse_advanced.h"
+#include "yuzu/bootmanager.h"
 #include "yuzu/configuration/config.h"
 #include "yuzu/configuration/configure_mouse_advanced.h"
 
@@ -101,7 +104,7 @@ ConfigureMouseAdvanced::ConfigureMouseAdvanced(QWidget* parent,
                 [=, this](const Common::ParamPackage& params) {
                     buttons_param[button_id] = params;
                 },
-                InputCommon::Polling::DeviceType::Button);
+                InputCommon::Polling::InputType::Button);
         });
         connect(button, &QPushButton::customContextMenuRequested,
                 [=, this](const QPoint& menu_location) {
@@ -127,14 +130,11 @@ ConfigureMouseAdvanced::ConfigureMouseAdvanced(QWidget* parent,
     connect(timeout_timer.get(), &QTimer::timeout, [this] { SetPollingResult({}, true); });
 
     connect(poll_timer.get(), &QTimer::timeout, [this] {
-        Common::ParamPackage params;
-        for (auto& poller : device_pollers) {
-            params = poller->GetNextInput();
+        const auto& params = input_subsystem->GetNextInput();
         if (params.Has("engine")) {
             SetPollingResult(params, false);
             return;
         }
-        }
     });
 
     LoadConfiguration();
@@ -196,26 +196,13 @@ void ConfigureMouseAdvanced::UpdateButtonLabels() {
 
 void ConfigureMouseAdvanced::HandleClick(
     QPushButton* button, std::function<void(const Common::ParamPackage&)> new_input_setter,
-    InputCommon::Polling::DeviceType type) {
+    InputCommon::Polling::InputType type) {
     button->setText(tr("[press key]"));
     button->setFocus();
 
-    // Keyboard keys or mouse buttons can only be used as button devices
-    want_keyboard_mouse = type == InputCommon::Polling::DeviceType::Button;
-    if (want_keyboard_mouse) {
-        const auto iter = std::find(button_map.begin(), button_map.end(), button);
-        ASSERT(iter != button_map.end());
-        const auto index = std::distance(button_map.begin(), iter);
-        ASSERT(index < Settings::NativeButton::NumButtons && index >= 0);
-    }
-
     input_setter = new_input_setter;
 
-    device_pollers = input_subsystem->GetPollers(type);
-
-    for (auto& poller : device_pollers) {
-        poller->Start();
-    }
+    input_subsystem->BeginMapping(type);
 
     QWidget::grabMouse();
     QWidget::grabKeyboard();
@@ -227,9 +214,7 @@ void ConfigureMouseAdvanced::HandleClick(
 void ConfigureMouseAdvanced::SetPollingResult(const Common::ParamPackage& params, bool abort) {
     timeout_timer->stop();
     poll_timer->stop();
-    for (auto& poller : device_pollers) {
-        poller->Stop();
-    }
+    input_subsystem->StopMapping();
 
     QWidget::releaseMouse();
     QWidget::releaseKeyboard();
@@ -247,15 +232,8 @@ void ConfigureMouseAdvanced::mousePressEvent(QMouseEvent* event) {
         return;
     }
 
-    if (want_keyboard_mouse) {
-        SetPollingResult(Common::ParamPackage{InputCommon::GenerateKeyboardParam(event->button())},
-                         false);
-    } else {
-        // We don't want any mouse buttons, so don't stop polling
-        return;
-    }
-
-    SetPollingResult({}, true);
+    const auto button = GRenderWindow::QtButtonToMouseButton(event->button());
+    input_subsystem->GetMouse()->PressButton(0, 0, 0, 0, button);
 }
 
 void ConfigureMouseAdvanced::keyPressEvent(QKeyEvent* event) {
@@ -264,13 +242,6 @@ void ConfigureMouseAdvanced::keyPressEvent(QKeyEvent* event) {
     }
 
     if (event->key() != Qt::Key_Escape) {
-        if (want_keyboard_mouse) {
-            SetPollingResult(Common::ParamPackage{InputCommon::GenerateKeyboardParam(event->key())},
-                             false);
-        } else {
-            // Escape key wasn't pressed and we don't want any keyboard keys, so don't stop polling
-            return;
+        input_subsystem->GetKeyboard()->PressKey(event->key());
     }
-    }
-    SetPollingResult({}, true);
 }