Initial commit

src/hid_core/CMakeLists.txt

@@ -0,0 +1,166 @@
+# SPDX-FileCopyrightText: 2018 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+add_library(hid_core STATIC
+    frontend/emulated_console.cpp
+    frontend/emulated_console.h
+    frontend/emulated_controller.cpp
+    frontend/emulated_controller.h
+    frontend/emulated_devices.cpp
+    frontend/emulated_devices.h
+    frontend/input_converter.cpp
+    frontend/input_converter.h
+    frontend/input_interpreter.cpp
+    frontend/input_interpreter.h
+    frontend/motion_input.cpp
+    frontend/motion_input.h
+    hidbus/hidbus_base.cpp
+    hidbus/hidbus_base.h
+    hidbus/ringcon.cpp
+    hidbus/ringcon.h
+    hidbus/starlink.cpp
+    hidbus/starlink.h
+    hidbus/stubbed.cpp
+    hidbus/stubbed.h
+    irsensor/clustering_processor.cpp
+    irsensor/clustering_processor.h
+    irsensor/image_transfer_processor.cpp
+    irsensor/image_transfer_processor.h
+    irsensor/ir_led_processor.cpp
+    irsensor/ir_led_processor.h
+    irsensor/moment_processor.cpp
+    irsensor/moment_processor.h
+    irsensor/pointing_processor.cpp
+    irsensor/pointing_processor.h
+    irsensor/processor_base.cpp
+    irsensor/processor_base.h
+    irsensor/tera_plugin_processor.cpp
+    irsensor/tera_plugin_processor.h
+    resources/abstracted_pad/abstract_battery_handler.cpp
+    resources/abstracted_pad/abstract_battery_handler.h
+    resources/abstracted_pad/abstract_button_handler.cpp
+    resources/abstracted_pad/abstract_button_handler.h
+    resources/abstracted_pad/abstract_ir_sensor_handler.cpp
+    resources/abstracted_pad/abstract_ir_sensor_handler.h
+    resources/abstracted_pad/abstract_led_handler.cpp
+    resources/abstracted_pad/abstract_led_handler.h
+    resources/abstracted_pad/abstract_mcu_handler.cpp
+    resources/abstracted_pad/abstract_mcu_handler.h
+    resources/abstracted_pad/abstract_nfc_handler.cpp
+    resources/abstracted_pad/abstract_nfc_handler.h
+    resources/abstracted_pad/abstract_pad.cpp
+    resources/abstracted_pad/abstract_pad.h
+    resources/abstracted_pad/abstract_pad_holder.cpp
+    resources/abstracted_pad/abstract_pad_holder.h
+    resources/abstracted_pad/abstract_palma_handler.cpp
+    resources/abstracted_pad/abstract_palma_handler.h
+    resources/abstracted_pad/abstract_properties_handler.cpp
+    resources/abstracted_pad/abstract_properties_handler.h
+    resources/abstracted_pad/abstract_sixaxis_handler.cpp
+    resources/abstracted_pad/abstract_sixaxis_handler.h
+    resources/abstracted_pad/abstract_vibration_handler.cpp
+    resources/abstracted_pad/abstract_vibration_handler.h
+    resources/debug_pad/debug_pad.cpp
+    resources/debug_pad/debug_pad.h
+    resources/debug_pad/debug_pad_types.h
+    resources/digitizer/digitizer.cpp
+    resources/digitizer/digitizer.h
+    resources/keyboard/keyboard.cpp
+    resources/keyboard/keyboard.h
+    resources/keyboard/keyboard_types.h
+    resources/mouse/debug_mouse.cpp
+    resources/mouse/debug_mouse.h
+    resources/mouse/mouse.cpp
+    resources/mouse/mouse.h
+    resources/mouse/mouse_types.h
+    resources/npad/npad.cpp
+    resources/npad/npad.h
+    resources/npad/npad_data.cpp
+    resources/npad/npad_data.h
+    resources/npad/npad_resource.cpp
+    resources/npad/npad_resource.h
+    resources/npad/npad_types.h
+    resources/npad/npad_vibration.cpp
+    resources/npad/npad_vibration.h
+    resources/palma/palma.cpp
+    resources/palma/palma.h
+    resources/six_axis/console_six_axis.cpp
+    resources/six_axis/console_six_axis.h
+    resources/six_axis/seven_six_axis.cpp
+    resources/six_axis/seven_six_axis.h
+    resources/six_axis/six_axis.cpp
+    resources/six_axis/six_axis.h
+    resources/system_buttons/capture_button.cpp
+    resources/system_buttons/capture_button.h
+    resources/system_buttons/home_button.cpp
+    resources/system_buttons/home_button.h
+    resources/system_buttons/sleep_button.cpp
+    resources/system_buttons/sleep_button.h
+    resources/system_buttons/system_button_types.h
+    resources/touch_screen/gesture.cpp
+    resources/touch_screen/gesture.h
+    resources/touch_screen/gesture_handler.cpp
+    resources/touch_screen/gesture_handler.h
+    resources/touch_screen/touch_screen.cpp
+    resources/touch_screen/touch_screen.h
+    resources/touch_screen/touch_screen_driver.cpp
+    resources/touch_screen/touch_screen_driver.h
+    resources/touch_screen/touch_screen_resource.cpp
+    resources/touch_screen/touch_screen_resource.h
+    resources/touch_screen/touch_types.h
+    resources/unique_pad/unique_pad.cpp
+    resources/unique_pad/unique_pad.h
+    resources/vibration/gc_vibration_device.h
+    resources/vibration/gc_vibration_device.cpp
+    resources/vibration/n64_vibration_device.h
+    resources/vibration/n64_vibration_device.cpp
+    resources/vibration/vibration_base.h
+    resources/vibration/vibration_base.cpp
+    resources/vibration/vibration_device.h
+    resources/vibration/vibration_device.cpp
+    resources/applet_resource.cpp
+    resources/applet_resource.h
+    resources/controller_base.cpp
+    resources/controller_base.h
+    resources/hid_firmware_settings.cpp
+    resources/hid_firmware_settings.h
+    resources/irs_ring_lifo.h
+    resources/ring_lifo.h
+    resources/shared_memory_format.h
+    resources/shared_memory_holder.cpp
+    resources/shared_memory_holder.h
+    hid_core.cpp
+    hid_core.h
+    hid_result.h
+    hid_types.h
+    hid_util.h
+    precompiled_headers.h
+    resource_manager.cpp
+    resource_manager.h
+)
+
+if (MSVC)
+    target_compile_options(hid_core PRIVATE
+        /we4242 # 'identifier': conversion from 'type1' to 'type2', possible loss of data
+        /we4244 # 'conversion': conversion from 'type1' to 'type2', possible loss of data
+        /we4245 # 'conversion': conversion from 'type1' to 'type2', signed/unsigned mismatch
+        /we4254 # 'operator': conversion from 'type1:field_bits' to 'type2:field_bits', possible loss of data
+        /we4800 # Implicit conversion from 'type' to bool. Possible information loss
+    )
+else()
+    target_compile_options(hid_core PRIVATE
+        -Werror=conversion
+
+        -Wno-sign-conversion
+        -Wno-cast-function-type
+
+        $<$<CXX_COMPILER_ID:Clang>:-fsized-deallocation>
+    )
+endif()
+
+create_target_directory_groups(hid_core)
+target_link_libraries(hid_core PUBLIC core)
+
+if (YUZU_USE_PRECOMPILED_HEADERS)
+    target_precompile_headers(hid_core PRIVATE precompiled_headers.h)
+endif()

src/hid_core/frontend/emulated_console.cpp

@@ -0,0 +1,324 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/settings.h"
+#include "hid_core/frontend/emulated_console.h"
+#include "hid_core/frontend/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 any unique config at the moment
+    const auto& player = Settings::values.players.GetValue()[0];
+    motion_params[0] = Common::ParamPackage(player.motions[0]);
+
+    ReloadInput();
+}
+
+void EmulatedConsole::SetTouchParams() {
+    std::size_t index = 0;
+
+    // We can't use mouse as touch if native mouse is enabled
+    if (!Settings::values.mouse_enabled) {
+        touch_params[index++] =
+            Common::ParamPackage{"engine:mouse,axis_x:0,axis_y:1,button:0,port:2"};
+    }
+
+    touch_params[index++] =
+        Common::ParamPackage{"engine:cemuhookudp,axis_x:17,axis_y:18,button:65536"};
+    touch_params[index++] =
+        Common::ParamPackage{"engine:cemuhookudp,axis_x:19,axis_y:20,button:131072"};
+
+    for (int i = 0; i < static_cast<int>(MaxActiveTouchInputs); i++) {
+        Common::ParamPackage touchscreen_param{};
+        touchscreen_param.Set("engine", "touch");
+        touchscreen_param.Set("axis_x", i * 2);
+        touchscreen_param.Set("axis_y", (i * 2) + 1);
+        touchscreen_param.Set("button", i);
+        touch_params[index++] = std::move(touchscreen_param);
+    }
+
+    if (Settings::values.touch_from_button_maps.empty()) {
+        LOG_WARNING(Input, "touch_from_button_maps is unset by frontend config");
+        return;
+    }
+
+    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;
+
+    // Map the rest of the fingers from touch from button configuration
+    for (const auto& config_entry : touch_buttons) {
+        if (index >= MaxTouchDevices) {
+            continue;
+        }
+        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_params[index] = std::move(touch_button_params);
+        index++;
+    }
+}
+
+void EmulatedConsole::ReloadInput() {
+    // If you load any device here add the equivalent to the UnloadInput() function
+    SetTouchParams();
+
+    motion_params[1] = Common::ParamPackage{"engine:virtual_gamepad,port:8,motion:0"};
+
+    for (std::size_t index = 0; index < motion_devices.size(); ++index) {
+        motion_devices[index] = Common::Input::CreateInputDevice(motion_params[index]);
+        if (!motion_devices[index]) {
+            continue;
+        }
+        motion_devices[index]->SetCallback({
+            .on_change =
+                [this](const Common::Input::CallbackStatus& callback) { SetMotion(callback); },
+        });
+    }
+
+    // Restore motion state
+    auto& emulated_motion = console.motion_values.emulated;
+    auto& motion = console.motion_state;
+    emulated_motion.ResetRotations();
+    emulated_motion.ResetQuaternion();
+    motion.accel = emulated_motion.GetAcceleration();
+    motion.gyro = emulated_motion.GetGyroscope();
+    motion.rotation = emulated_motion.GetRotations();
+    motion.orientation = emulated_motion.GetOrientation();
+    motion.is_at_rest = !emulated_motion.IsMoving(motion_sensitivity);
+
+    // Unique index for identifying touch device source
+    std::size_t index = 0;
+    for (auto& touch_device : touch_devices) {
+        touch_device = Common::Input::CreateInputDevice(touch_params[index]);
+        if (!touch_device) {
+            continue;
+        }
+        touch_device->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetTouch(callback, index);
+                },
+        });
+        index++;
+    }
+}
+
+void EmulatedConsole::UnloadInput() {
+    for (auto& motion : motion_devices) {
+        motion.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[0];
+}
+
+void EmulatedConsole::SetMotionParam(Common::ParamPackage param) {
+    motion_params[0] = std::move(param);
+    ReloadInput();
+}
+
+void EmulatedConsole::SetMotion(const Common::Input::CallbackStatus& callback) {
+    std::unique_lock 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) {
+        lock.unlock();
+        TriggerOnChange(ConsoleTriggerType::Motion);
+        return;
+    }
+
+    auto& motion = console.motion_state;
+    motion.accel = emulated.GetAcceleration();
+    motion.gyro = emulated.GetGyroscope();
+    motion.rotation = emulated.GetRotations();
+    motion.orientation = emulated.GetOrientation();
+    motion.quaternion = emulated.GetQuaternion();
+    motion.gyro_bias = emulated.GetGyroBias();
+    motion.is_at_rest = !emulated.IsMoving(motion_sensitivity);
+    // Find what is this value
+    motion.verticalization_error = 0.0f;
+
+    lock.unlock();
+    TriggerOnChange(ConsoleTriggerType::Motion);
+}
+
+void EmulatedConsole::SetTouch(const Common::Input::CallbackStatus& callback, std::size_t index) {
+    if (index >= MaxTouchDevices) {
+        return;
+    }
+    std::unique_lock lock{mutex};
+
+    const auto touch_input = TransformToTouch(callback);
+    auto touch_index = GetIndexFromFingerId(index);
+    bool is_new_input = false;
+
+    if (!touch_index.has_value() && touch_input.pressed.value) {
+        touch_index = GetNextFreeIndex();
+        is_new_input = true;
+    }
+
+    // No free entries or invalid state. Ignore input
+    if (!touch_index.has_value()) {
+        return;
+    }
+
+    auto& touch_value = console.touch_values[touch_index.value()];
+
+    if (is_new_input) {
+        touch_value.pressed.value = true;
+        touch_value.id = static_cast<int>(index);
+    }
+
+    touch_value.x = touch_input.x;
+    touch_value.y = touch_input.y;
+
+    if (!touch_input.pressed.value) {
+        touch_value.pressed.value = false;
+    }
+
+    if (is_configuring) {
+        lock.unlock();
+        TriggerOnChange(ConsoleTriggerType::Touch);
+        return;
+    }
+
+    // Touch outside allowed range. Ignore input
+    if (touch_index.value() >= MaxActiveTouchInputs) {
+        return;
+    }
+
+    console.touch_state[touch_index.value()] = {
+        .position = {touch_value.x.value, touch_value.y.value},
+        .id = static_cast<u32>(touch_index.value()),
+        .pressed = touch_input.pressed.value,
+    };
+
+    lock.unlock();
+    TriggerOnChange(ConsoleTriggerType::Touch);
+}
+
+ConsoleMotionValues EmulatedConsole::GetMotionValues() const {
+    std::scoped_lock lock{mutex};
+    return console.motion_values;
+}
+
+TouchValues EmulatedConsole::GetTouchValues() const {
+    std::scoped_lock lock{mutex};
+    return console.touch_values;
+}
+
+ConsoleMotion EmulatedConsole::GetMotion() const {
+    std::scoped_lock lock{mutex};
+    return console.motion_state;
+}
+
+TouchFingerState EmulatedConsole::GetTouch() const {
+    std::scoped_lock lock{mutex};
+    return console.touch_state;
+}
+
+std::optional<std::size_t> EmulatedConsole::GetIndexFromFingerId(std::size_t finger_id) const {
+    for (std::size_t index = 0; index < MaxTouchDevices; ++index) {
+        const auto& finger = console.touch_values[index];
+        if (!finger.pressed.value) {
+            continue;
+        }
+        if (finger.id == static_cast<int>(finger_id)) {
+            return index;
+        }
+    }
+    return std::nullopt;
+}
+
+std::optional<std::size_t> EmulatedConsole::GetNextFreeIndex() const {
+    for (std::size_t index = 0; index < MaxTouchDevices; ++index) {
+        if (!console.touch_values[index].pressed.value) {
+            return index;
+        }
+    }
+    return std::nullopt;
+}
+
+void EmulatedConsole::TriggerOnChange(ConsoleTriggerType type) {
+    std::scoped_lock lock{callback_mutex};
+    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::scoped_lock lock{callback_mutex};
+    callback_list.insert_or_assign(last_callback_key, std::move(update_callback));
+    return last_callback_key++;
+}
+
+void EmulatedConsole::DeleteCallback(int key) {
+    std::scoped_lock lock{callback_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/hid_core/frontend/emulated_console.h

@@ -0,0 +1,192 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <optional>
+#include <unordered_map>
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/point.h"
+#include "common/quaternion.h"
+#include "common/vector_math.h"
+#include "hid_core/frontend/motion_input.h"
+#include "hid_core/hid_types.h"
+
+namespace Core::HID {
+static constexpr std::size_t MaxTouchDevices = 32;
+static constexpr std::size_t MaxActiveTouchInputs = 16;
+
+struct ConsoleMotionInfo {
+    Common::Input::MotionStatus raw_status{};
+    MotionInput emulated{};
+};
+
+using ConsoleMotionDevices = std::array<std::unique_ptr<Common::Input::InputDevice>, 2>;
+using TouchDevices = std::array<std::unique_ptr<Common::Input::InputDevice>, MaxTouchDevices>;
+
+using ConsoleMotionParams = std::array<Common::ParamPackage, 2>;
+using TouchParams = std::array<Common::ParamPackage, MaxTouchDevices>;
+
+using ConsoleMotionValues = ConsoleMotionInfo;
+using TouchValues = std::array<Common::Input::TouchStatus, MaxTouchDevices>;
+
+// 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{};
+    Common::Vec3f gyro_bias{};
+    f32 verticalization_error{};
+    bool is_at_rest{};
+};
+
+using TouchFingerState = std::array<TouchFinger, MaxActiveTouchInputs>;
+
+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 within the emulated switch console tablet such as touch and motion
+     */
+    explicit 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
+     * This prevents the modification of the HID state of the emulated console by input commands
+     */
+    void EnableConfiguration();
+
+    /// Returns the emulated console into normal mode, allowing the modification of the HID state
+    void DisableConfiguration();
+
+    /// Returns true if the emulated console is in 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 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 update_callback A 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 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 callback A CallbackStatus containing gyro and accelerometer data
+     */
+    void SetMotion(const 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(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    std::optional<std::size_t> GetIndexFromFingerId(std::size_t finger_id) const;
+
+    std::optional<std::size_t> GetNextFreeIndex() const;
+
+    /**
+     * Triggers a callback that something has changed on the console status
+     * @param type 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;
+    mutable std::mutex callback_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/hid_core/frontend/emulated_controller.h

@@ -0,0 +1,640 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+#include <vector>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/settings.h"
+#include "common/vector_math.h"
+#include "hid_core/frontend/motion_input.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/irsensor/irs_types.h"
+
+namespace Core::HID {
+const std::size_t max_emulated_controllers = 2;
+const std::size_t output_devices_size = 5;
+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 ColorDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, max_emulated_controllers>;
+using BatteryDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, max_emulated_controllers>;
+using CameraDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, max_emulated_controllers>;
+using RingAnalogDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, max_emulated_controllers>;
+using NfcDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, max_emulated_controllers>;
+using OutputDevices = std::array<std::unique_ptr<Common::Input::OutputDevice>, output_devices_size>;
+
+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 ColorParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+using BatteryParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+using CameraParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+using RingAnalogParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+using NfcParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+using OutputParams = std::array<Common::ParamPackage, output_devices_size>;
+
+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 CameraValues = Common::Input::CameraStatus;
+using RingAnalogValue = Common::Input::AnalogStatus;
+using NfcValues = Common::Input::NfcStatus;
+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 CameraState {
+    Core::IrSensor::ImageTransferProcessorFormat format{};
+    std::vector<u8> data{};
+    std::size_t sample{};
+};
+
+struct RingSensorForce {
+    f32 force;
+};
+
+using NfcState = Common::Input::NfcStatus;
+
+struct ControllerMotion {
+    Common::Vec3f accel{};
+    Common::Vec3f gyro{};
+    Common::Vec3f rotation{};
+    Common::Vec3f euler{};
+    std::array<Common::Vec3f, 3> orientation{};
+    bool is_at_rest{};
+};
+
+enum EmulatedDeviceIndex : 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{};
+    CameraValues camera_values{};
+    RingAnalogValue ring_analog_value{};
+    NfcValues nfc_values{};
+
+    // Data for HID services
+    HomeButtonState home_button_state{};
+    CaptureButtonState capture_button_state{};
+    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{};
+    CameraState camera_state{};
+    RingSensorForce ring_analog_state{};
+    NfcState nfc_state{};
+    Common::Input::PollingMode left_polling_mode{};
+    Common::Input::PollingMode right_polling_mode{};
+};
+
+enum class ControllerTriggerType {
+    Button,
+    Stick,
+    Trigger,
+    Motion,
+    Color,
+    Battery,
+    Vibration,
+    IrSensor,
+    RingController,
+    Nfc,
+    Connected,
+    Disconnected,
+    Type,
+    All,
+};
+
+struct ControllerUpdateCallback {
+    std::function<void(ControllerTriggerType)> on_change;
+    bool is_npad_service;
+};
+
+class EmulatedController {
+public:
+    /**
+     * Contains all input data (buttons, joysticks, vibration, and motion) within this controller.
+     * @param npad_id_type 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 NpadStyleIndex MapSettingsTypeToNPad(Settings::ControllerType type);
+
+    /// Converts npad type to the equivalent of controller type from settings
+    static Settings::ControllerType MapNPadToSettingsType(NpadStyleIndex type);
+
+    /// Gets the NpadIdType for this controller
+    NpadIdType GetNpadIdType() const;
+
+    /// Sets the NpadStyleIndex for this controller
+    void SetNpadStyleIndex(NpadStyleIndex npad_type_);
+
+    /**
+     * Gets the NpadStyleIndex for this controller
+     * @param get_temporary_value If true tmp_npad_type will be returned
+     * @return NpadStyleIndex set on the controller
+     */
+    NpadStyleIndex GetNpadStyleIndex(bool get_temporary_value = false) const;
+
+    /**
+     * Sets the supported controller types. Disconnects the controller if current type is not
+     * supported
+     * @param supported_styles bitflag with supported types
+     */
+    void SetSupportedNpadStyleTag(NpadStyleTag supported_styles);
+
+    /**
+     * Sets the connected status to true
+     * @param use_temporary_value If true tmp_npad_type will be used
+     */
+    void Connect(bool use_temporary_value = false);
+
+    /// Sets the connected status to false
+    void Disconnect();
+
+    /**
+     * Is the emulated connected
+     * @param get_temporary_value 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;
+
+    /// Removes all callbacks created from input devices
+    void UnloadInput();
+
+    /**
+     * Sets the emulated controller into configuring mode
+     * This prevents the modification of the HID state of the emulated controller by input commands
+     */
+    void EnableConfiguration();
+
+    /// Returns the emulated controller into normal mode, allowing the modification of the HID state
+    void DisableConfiguration();
+
+    /// Enables Home and Screenshot buttons
+    void EnableSystemButtons();
+
+    /// Disables Home and Screenshot buttons
+    void DisableSystemButtons();
+
+    /// Sets Home and Screenshot buttons to false
+    void ResetSystemButtons();
+
+    /// Returns true if the emulated controller is in 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();
+
+    /// Updates current colors with the ones stored in the configuration
+    void ReloadColorsFromSettings();
+
+    /// 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() 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 param ParamPackage with controller data to be mapped
+     */
+    void SetButtonParam(std::size_t index, Common::ParamPackage param);
+
+    /**
+     * Updates the current mapped stick device
+     * @param param ParamPackage with controller data to be mapped
+     */
+    void SetStickParam(std::size_t index, Common::ParamPackage param);
+
+    /**
+     * Updates the current mapped motion device
+     * @param param ParamPackage with controller data to be mapped
+     */
+    void SetMotionParam(std::size_t index, Common::ParamPackage param);
+
+    /// Auto calibrates the current motion devices
+    void StartMotionCalibration();
+
+    /// 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 camera status from the controller with parameters
+    CameraValues GetCameraValues() const;
+
+    /// Returns the latest status of analog input from the ring sensor with parameters
+    RingAnalogValue GetRingSensorValues() const;
+
+    /// Returns the latest status of button input for the hid::HomeButton service
+    HomeButtonState GetHomeButtons() const;
+
+    /// Returns the latest status of button input for the hid::CaptureButton service
+    CaptureButtonState GetCaptureButtons() const;
+
+    /// Returns the latest status of button input for the hid::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;
+
+    /// Returns the latest camera status from the controller
+    const CameraState& GetCamera() const;
+
+    /// Returns the latest ringcon force sensor value
+    RingSensorForce GetRingSensorForce() const;
+
+    /// Returns the latest ntag status from the controller
+    const NfcState& GetNfc() const;
+
+    /**
+     * Sends an on/off vibration to the left device
+     * @return true if vibration had no errors
+     */
+    bool SetVibration(bool should_vibrate);
+
+    /**
+     * Sends an GC vibration to the left device
+     * @return true if vibration had no errors
+     */
+    bool SetVibration(u32 slot, Core::HID::VibrationGcErmCommand erm_command);
+
+    /**
+     * Sends a specific vibration to the output device
+     * @return true if vibration had no errors
+     */
+    bool SetVibration(DeviceIndex device_index, const VibrationValue& vibration);
+
+    /**
+     * @return The last sent vibration
+     */
+    VibrationValue GetActualVibrationValue(DeviceIndex device_index) const;
+
+    /**
+     * Sends a small vibration to the output device
+     * @return true if SetVibration was successful
+     */
+    bool IsVibrationEnabled(std::size_t device_index);
+
+    /**
+     * Sets the desired data to be polled from a controller
+     * @param device_index index of the controller to set the polling mode
+     * @param polling_mode type of input desired buttons, gyro, nfc, ir, etc.
+     * @return driver result from this command
+     */
+    Common::Input::DriverResult SetPollingMode(EmulatedDeviceIndex device_index,
+                                               Common::Input::PollingMode polling_mode);
+    /**
+     * Get the current polling mode from a controller
+     * @param device_index index of the controller to set the polling mode
+     * @return current polling mode
+     */
+    Common::Input::PollingMode GetPollingMode(EmulatedDeviceIndex device_index) const;
+
+    /**
+     * Sets the desired camera format to be polled from a controller
+     * @param camera_format size of each frame
+     * @return true if SetCameraFormat was successful
+     */
+    bool SetCameraFormat(Core::IrSensor::ImageTransferProcessorFormat camera_format);
+
+    // Returns the current mapped ring device
+    Common::ParamPackage GetRingParam() const;
+
+    /**
+     * Updates the current mapped ring device
+     * @param param ParamPackage with ring sensor data to be mapped
+     */
+    void SetRingParam(Common::ParamPackage param);
+
+    /// Returns true if the device has nfc support
+    bool HasNfc() const;
+
+    /// Sets the joycon in nfc mode and increments the handle count
+    bool AddNfcHandle();
+
+    /// Decrements the handle count if zero sets the joycon in active mode
+    bool RemoveNfcHandle();
+
+    /// Start searching for nfc tags
+    bool StartNfcPolling();
+
+    /// Stop searching for nfc tags
+    bool StopNfcPolling();
+
+    /// Returns true if the nfc tag was readable
+    bool ReadAmiiboData(std::vector<u8>& data);
+
+    /// Returns true if the nfc tag was written
+    bool WriteNfc(const std::vector<u8>& data);
+
+    /// Returns true if the nfc tag was readable
+    bool ReadMifareData(const Common::Input::MifareRequest& request,
+                        Common::Input::MifareRequest& out_data);
+
+    /// Returns true if the nfc tag was written
+    bool WriteMifareData(const Common::Input::MifareRequest& request);
+
+    /// Returns the led pattern corresponding to this emulated controller
+    LedPattern GetLedPattern() const;
+
+    /// Asks the output device to change the player led pattern
+    void SetLedPattern();
+
+    /// Changes sensitivity of the motion sensor
+    void SetGyroscopeZeroDriftMode(GyroscopeZeroDriftMode mode);
+
+    /**
+     * Adds a callback to the list of events
+     * @param update_callback A 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 Key corresponding to the callback index in the list
+     */
+    void DeleteCallback(int key);
+
+    /// Swaps the state of the turbo buttons and updates motion input
+    void StatusUpdate();
+
+private:
+    /// creates input devices from params
+    void LoadDevices();
+
+    /// Set the params for TAS devices
+    void LoadTASParams();
+
+    /// Set the params for virtual pad devices
+    void LoadVirtualGamepadParams();
+
+    /**
+     * @param use_temporary_value If true tmp_npad_type will be used
+     * @return true if the controller style is fullkey
+     */
+    bool IsControllerFullkey(bool use_temporary_value = false) const;
+
+    /**
+     * Checks the current controller type against the supported_style_tag
+     * @param use_temporary_value If true tmp_npad_type will be used
+     * @return true if the controller is supported
+     */
+    bool IsControllerSupported(bool use_temporary_value = false) const;
+
+    /**
+     * 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(const Common::Input::CallbackStatus& callback, std::size_t index,
+                   Common::UUID uuid);
+
+    /**
+     * 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(const Common::Input::CallbackStatus& callback, std::size_t index,
+                  Common::UUID uuid);
+
+    /**
+     * 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(const Common::Input::CallbackStatus& callback, std::size_t index,
+                    Common::UUID uuid);
+
+    /**
+     * 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(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the color status of the controller
+     * @param callback A CallbackStatus containing the color status
+     * @param index color ID of the to be updated
+     */
+    void SetColors(const 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 battery ID of the to be updated
+     */
+    void SetBattery(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the camera status of the controller
+     * @param callback A CallbackStatus containing the camera status
+     */
+    void SetCamera(const Common::Input::CallbackStatus& callback);
+
+    /**
+     * Updates the ring analog sensor status of the ring controller
+     * @param callback A CallbackStatus containing the force status
+     */
+    void SetRingAnalog(const Common::Input::CallbackStatus& callback);
+
+    /**
+     * Updates the nfc status of the controller
+     * @param callback A CallbackStatus containing the nfc status
+     */
+    void SetNfc(const Common::Input::CallbackStatus& callback);
+
+    /**
+     * Converts a color format from bgra to rgba
+     * @param color in bgra format
+     * @return NpadColor in rgba format
+     */
+    NpadColor GetNpadColor(u32 color);
+
+    /**
+     * 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 only be sent to HID services
+     */
+    void TriggerOnChange(ControllerTriggerType type, bool is_service_update);
+
+    NpadButton GetTurboButtonMask() const;
+
+    const NpadIdType npad_id_type;
+    NpadStyleIndex npad_type{NpadStyleIndex::None};
+    NpadStyleIndex original_npad_type{NpadStyleIndex::None};
+    NpadStyleTag supported_style_tag{NpadStyleSet::All};
+    bool is_connected{false};
+    bool is_configuring{false};
+    bool is_initialized{false};
+    bool system_buttons_enabled{true};
+    f32 motion_sensitivity{Core::HID::MotionInput::IsAtRestStandard};
+    u32 turbo_button_state{0};
+    std::size_t nfc_handles{0};
+    std::array<VibrationValue, 2> last_vibration_value{DEFAULT_VIBRATION_VALUE,
+                                                       DEFAULT_VIBRATION_VALUE};
+    std::array<std::chrono::steady_clock::time_point, 2> last_vibration_timepoint{};
+
+    // Temporary values to avoid doing changes while the controller is in configuring mode
+    NpadStyleIndex tmp_npad_type{NpadStyleIndex::None};
+    bool tmp_is_connected{false};
+
+    ButtonParams button_params;
+    StickParams stick_params;
+    ControllerMotionParams motion_params;
+    TriggerParams trigger_params;
+    BatteryParams battery_params;
+    ColorParams color_params;
+    CameraParams camera_params;
+    RingAnalogParams ring_params;
+    NfcParams nfc_params;
+    Common::ParamPackage android_params;
+    OutputParams output_params;
+
+    ButtonDevices button_devices;
+    StickDevices stick_devices;
+    ControllerMotionDevices motion_devices;
+    TriggerDevices trigger_devices;
+    BatteryDevices battery_devices;
+    ColorDevices color_devices;
+    CameraDevices camera_devices;
+    RingAnalogDevices ring_analog_devices;
+    NfcDevices nfc_devices;
+    OutputDevices output_devices;
+
+    // TAS related variables
+    ButtonParams tas_button_params;
+    StickParams tas_stick_params;
+    ButtonDevices tas_button_devices;
+    StickDevices tas_stick_devices;
+
+    // Virtual gamepad related variables
+    ButtonParams virtual_button_params;
+    StickParams virtual_stick_params;
+    ControllerMotionParams virtual_motion_params;
+    ButtonDevices virtual_button_devices;
+    StickDevices virtual_stick_devices;
+    ControllerMotionDevices virtual_motion_devices;
+
+    mutable std::mutex mutex;
+    mutable std::mutex callback_mutex;
+    mutable std::mutex npad_mutex;
+    mutable std::mutex connect_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/hid_core/frontend/emulated_devices.cpp

@@ -0,0 +1,483 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <algorithm>
+#include <fmt/format.h>
+
+#include "hid_core/frontend/emulated_devices.h"
+#include "hid_core/frontend/input_converter.h"
+
+namespace Core::HID {
+
+EmulatedDevices::EmulatedDevices() = default;
+
+EmulatedDevices::~EmulatedDevices() = default;
+
+void EmulatedDevices::ReloadFromSettings() {
+    ReloadInput();
+}
+
+void EmulatedDevices::ReloadInput() {
+    // If you load any device here add the equivalent to the UnloadInput() function
+
+    // Native Mouse is mapped on port 1, pad 0
+    const Common::ParamPackage mouse_params{"engine:mouse,port:1,pad:0"};
+
+    // Keyboard keys is mapped on port 1, pad 0 for normal keys, pad 1 for moddifier keys
+    const Common::ParamPackage keyboard_params{"engine:keyboard,port:1"};
+
+    std::size_t key_index = 0;
+    for (auto& mouse_device : mouse_button_devices) {
+        Common::ParamPackage mouse_button_params = mouse_params;
+        mouse_button_params.Set("button", static_cast<int>(key_index));
+        mouse_device = Common::Input::CreateInputDevice(mouse_button_params);
+        key_index++;
+    }
+
+    Common::ParamPackage mouse_position_params = mouse_params;
+    mouse_position_params.Set("axis_x", 0);
+    mouse_position_params.Set("axis_y", 1);
+    mouse_position_params.Set("deadzone", 0.0f);
+    mouse_position_params.Set("range", 1.0f);
+    mouse_position_params.Set("threshold", 0.0f);
+    mouse_stick_device = Common::Input::CreateInputDevice(mouse_position_params);
+
+    // First two axis are reserved for mouse position
+    key_index = 2;
+    for (auto& mouse_device : mouse_wheel_devices) {
+        Common::ParamPackage mouse_wheel_params = mouse_params;
+        mouse_wheel_params.Set("axis", static_cast<int>(key_index));
+        mouse_device = Common::Input::CreateInputDevice(mouse_wheel_params);
+        key_index++;
+    }
+
+    key_index = 0;
+    for (auto& keyboard_device : keyboard_devices) {
+        Common::ParamPackage keyboard_key_params = keyboard_params;
+        keyboard_key_params.Set("button", static_cast<int>(key_index));
+        keyboard_key_params.Set("pad", 0);
+        keyboard_device = Common::Input::CreateInputDevice(keyboard_key_params);
+        key_index++;
+    }
+
+    key_index = 0;
+    for (auto& keyboard_device : keyboard_modifier_devices) {
+        Common::ParamPackage keyboard_moddifier_params = keyboard_params;
+        keyboard_moddifier_params.Set("button", static_cast<int>(key_index));
+        keyboard_moddifier_params.Set("pad", 1);
+        keyboard_device = Common::Input::CreateInputDevice(keyboard_moddifier_params);
+        key_index++;
+    }
+
+    for (std::size_t index = 0; index < mouse_button_devices.size(); ++index) {
+        if (!mouse_button_devices[index]) {
+            continue;
+        }
+        mouse_button_devices[index]->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetMouseButton(callback, index);
+                },
+        });
+    }
+
+    for (std::size_t index = 0; index < mouse_wheel_devices.size(); ++index) {
+        if (!mouse_wheel_devices[index]) {
+            continue;
+        }
+        mouse_wheel_devices[index]->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetMouseWheel(callback, index);
+                },
+        });
+    }
+
+    if (mouse_stick_device) {
+        mouse_stick_device->SetCallback({
+            .on_change =
+                [this](const Common::Input::CallbackStatus& callback) {
+                    SetMousePosition(callback);
+                },
+        });
+    }
+
+    for (std::size_t index = 0; index < keyboard_devices.size(); ++index) {
+        if (!keyboard_devices[index]) {
+            continue;
+        }
+        keyboard_devices[index]->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetKeyboardButton(callback, index);
+                },
+        });
+    }
+
+    for (std::size_t index = 0; index < keyboard_modifier_devices.size(); ++index) {
+        if (!keyboard_modifier_devices[index]) {
+            continue;
+        }
+        keyboard_modifier_devices[index]->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetKeyboardModifier(callback, index);
+                },
+        });
+    }
+}
+
+void EmulatedDevices::UnloadInput() {
+    for (auto& button : mouse_button_devices) {
+        button.reset();
+    }
+    for (auto& analog : mouse_wheel_devices) {
+        analog.reset();
+    }
+    mouse_stick_device.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;
+    }
+}
+
+void EmulatedDevices::RestoreConfig() {
+    if (!is_configuring) {
+        return;
+    }
+    ReloadFromSettings();
+}
+
+void EmulatedDevices::SetKeyboardButton(const Common::Input::CallbackStatus& callback,
+                                        std::size_t index) {
+    if (index >= device_status.keyboard_values.size()) {
+        return;
+    }
+    std::unique_lock 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) {
+        lock.unlock();
+        TriggerOnChange(DeviceTriggerType::Keyboard);
+        return;
+    }
+
+    // Index should be converted from NativeKeyboard to KeyboardKeyIndex
+    UpdateKey(index, current_status.value);
+
+    lock.unlock();
+    TriggerOnChange(DeviceTriggerType::Keyboard);
+}
+
+void EmulatedDevices::UpdateKey(std::size_t key_index, bool status) {
+    constexpr std::size_t 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(const Common::Input::CallbackStatus& callback,
+                                          std::size_t index) {
+    if (index >= device_status.keyboard_moddifier_values.size()) {
+        return;
+    }
+    std::unique_lock 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) {
+        lock.unlock();
+        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;
+    }
+
+    lock.unlock();
+    TriggerOnChange(DeviceTriggerType::KeyboardModdifier);
+}
+
+void EmulatedDevices::SetMouseButton(const Common::Input::CallbackStatus& callback,
+                                     std::size_t index) {
+    if (index >= device_status.mouse_button_values.size()) {
+        return;
+    }
+    std::unique_lock 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) {
+        lock.unlock();
+        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;
+    }
+
+    lock.unlock();
+    TriggerOnChange(DeviceTriggerType::Mouse);
+}
+
+void EmulatedDevices::SetMouseWheel(const Common::Input::CallbackStatus& callback,
+                                    std::size_t index) {
+    if (index >= device_status.mouse_wheel_values.size()) {
+        return;
+    }
+    std::unique_lock lock{mutex};
+    const auto analog_value = TransformToAnalog(callback);
+
+    device_status.mouse_wheel_values[index] = analog_value;
+
+    if (is_configuring) {
+        device_status.mouse_wheel_state = {};
+        lock.unlock();
+        TriggerOnChange(DeviceTriggerType::Mouse);
+        return;
+    }
+
+    switch (index) {
+    case Settings::NativeMouseWheel::X:
+        device_status.mouse_wheel_state.x = static_cast<s32>(analog_value.value);
+        break;
+    case Settings::NativeMouseWheel::Y:
+        device_status.mouse_wheel_state.y = static_cast<s32>(analog_value.value);
+        break;
+    }
+
+    lock.unlock();
+    TriggerOnChange(DeviceTriggerType::Mouse);
+}
+
+void EmulatedDevices::SetMousePosition(const Common::Input::CallbackStatus& callback) {
+    std::unique_lock lock{mutex};
+    const auto touch_value = TransformToTouch(callback);
+
+    device_status.mouse_stick_value = touch_value;
+
+    if (is_configuring) {
+        device_status.mouse_position_state = {};
+        lock.unlock();
+        TriggerOnChange(DeviceTriggerType::Mouse);
+        return;
+    }
+
+    device_status.mouse_position_state.x = touch_value.x.value;
+    device_status.mouse_position_state.y = touch_value.y.value;
+
+    lock.unlock();
+    TriggerOnChange(DeviceTriggerType::Mouse);
+}
+
+KeyboardValues EmulatedDevices::GetKeyboardValues() const {
+    std::scoped_lock lock{mutex};
+    return device_status.keyboard_values;
+}
+
+KeyboardModifierValues EmulatedDevices::GetKeyboardModdifierValues() const {
+    std::scoped_lock lock{mutex};
+    return device_status.keyboard_moddifier_values;
+}
+
+MouseButtonValues EmulatedDevices::GetMouseButtonsValues() const {
+    std::scoped_lock lock{mutex};
+    return device_status.mouse_button_values;
+}
+
+KeyboardKey EmulatedDevices::GetKeyboard() const {
+    std::scoped_lock lock{mutex};
+    return device_status.keyboard_state;
+}
+
+KeyboardModifier EmulatedDevices::GetKeyboardModifier() const {
+    std::scoped_lock lock{mutex};
+    return device_status.keyboard_moddifier_state;
+}
+
+MouseButton EmulatedDevices::GetMouseButtons() const {
+    std::scoped_lock lock{mutex};
+    return device_status.mouse_button_state;
+}
+
+MousePosition EmulatedDevices::GetMousePosition() const {
+    std::scoped_lock lock{mutex};
+    return device_status.mouse_position_state;
+}
+
+AnalogStickState EmulatedDevices::GetMouseWheel() const {
+    std::scoped_lock lock{mutex};
+    return device_status.mouse_wheel_state;
+}
+
+void EmulatedDevices::TriggerOnChange(DeviceTriggerType type) {
+    std::scoped_lock lock{callback_mutex};
+    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::scoped_lock lock{callback_mutex};
+    callback_list.insert_or_assign(last_callback_key, std::move(update_callback));
+    return last_callback_key++;
+}
+
+void EmulatedDevices::DeleteCallback(int key) {
+    std::scoped_lock lock{callback_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/hid_core/frontend/emulated_devices.h

@@ -0,0 +1,212 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+#include <vector>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/settings.h"
+#include "hid_core/hid_types.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 MouseWheelDevices = std::array<std::unique_ptr<Common::Input::InputDevice>,
+                                     Settings::NativeMouseWheel::NumMouseWheels>;
+using MouseStickDevice = std::unique_ptr<Common::Input::InputDevice>;
+
+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>;
+using MouseWheelValues =
+    std::array<Common::Input::AnalogStatus, Settings::NativeMouseWheel::NumMouseWheels>;
+using MouseStickValue = Common::Input::TouchStatus;
+
+struct MousePosition {
+    f32 x;
+    f32 y;
+};
+
+struct DeviceStatus {
+    // Data from input_common
+    KeyboardValues keyboard_values{};
+    KeyboardModifierValues keyboard_moddifier_values{};
+    MouseButtonValues mouse_button_values{};
+    MouseWheelValues mouse_wheel_values{};
+    MouseStickValue mouse_stick_value{};
+
+    // Data for HID services
+    KeyboardKey keyboard_state{};
+    KeyboardModifier keyboard_moddifier_state{};
+    MouseButton mouse_button_state{};
+    MousePosition mouse_position_state{};
+    AnalogStickState mouse_wheel_state{};
+};
+
+enum class DeviceTriggerType {
+    Keyboard,
+    KeyboardModdifier,
+    Mouse,
+    RingController,
+};
+
+struct InterfaceUpdateCallback {
+    std::function<void(DeviceTriggerType)> on_change;
+};
+
+class EmulatedDevices {
+public:
+    /**
+     * Contains all input data related to external devices that aren't necessarily a controller
+     * This includes devices such as the keyboard or mouse
+     */
+    explicit EmulatedDevices();
+    ~EmulatedDevices();
+
+    YUZU_NON_COPYABLE(EmulatedDevices);
+    YUZU_NON_MOVEABLE(EmulatedDevices);
+
+    /// Removes all callbacks created from input devices
+    void UnloadInput();
+
+    /**
+     * Sets the emulated devices into configuring mode
+     * This prevents the modification of the HID state of the emulated devices by input commands
+     */
+    void EnableConfiguration();
+
+    /// Returns the emulated devices into normal mode, allowing the modification of the HID state
+    void DisableConfiguration();
+
+    /// Returns true if the emulated device is in 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 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;
+
+    /// Returns the latest mouse wheel change
+    AnalogStickState GetMouseWheel() const;
+
+    /**
+     * Adds a callback to the list of events
+     * @param update_callback InterfaceUpdateCallback 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 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 keyboard device
+     * @param callback A CallbackStatus containing the key status
+     * @param index key ID to be updated
+     */
+    void SetKeyboardButton(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the keyboard status of the keyboard device
+     * @param callback A CallbackStatus containing the modifier key status
+     * @param index modifier key ID to be updated
+     */
+    void SetKeyboardModifier(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the mouse button status of the mouse device
+     * @param callback A CallbackStatus containing the button status
+     * @param index Button ID to be updated
+     */
+    void SetMouseButton(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the mouse wheel status of the mouse device
+     * @param callback A CallbackStatus containing the wheel status
+     * @param index wheel ID to be updated
+     */
+    void SetMouseWheel(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the mouse position status of the mouse device
+     * @param callback A CallbackStatus containing the position status
+     */
+    void SetMousePosition(const Common::Input::CallbackStatus& callback);
+
+    /**
+     * Triggers a callback that something has changed on the device status
+     * @param type Input type of the event to trigger
+     */
+    void TriggerOnChange(DeviceTriggerType type);
+
+    bool is_configuring{false};
+
+    KeyboardDevices keyboard_devices;
+    KeyboardModifierDevices keyboard_modifier_devices;
+    MouseButtonDevices mouse_button_devices;
+    MouseWheelDevices mouse_wheel_devices;
+    MouseStickDevice mouse_stick_device;
+
+    mutable std::mutex mutex;
+    mutable std::mutex callback_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/hid_core/frontend/input_converter.cpp

@@ -0,0 +1,436 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <algorithm>
+#include <random>
+
+#include "common/input.h"
+#include "hid_core/frontend/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 >= 0.95f) {
+            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:
+        status.value = TransformToTrigger(callback).pressed.value;
+        status.toggle = callback.analog_status.properties.toggle;
+        status.inverted = callback.analog_status.properties.inverted_button;
+        break;
+    case Common::Input::InputType::Trigger:
+        status.value = TransformToTrigger(callback).pressed.value;
+        break;
+    case Common::Input::InputType::Button:
+        status = callback.button_status;
+        break;
+    case Common::Input::InputType::Motion:
+        status.value = std::abs(callback.motion_status.gyro.x.raw_value) > 1.0f;
+        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 = 0.0f,
+            .range = 1.0f,
+            .offset = 0.0f,
+        };
+        status.delta_timestamp = 1000;
+        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,
+        };
+        status.gyro.x = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        status.gyro.y = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        status.gyro.z = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        if (TransformToButton(callback).value) {
+            std::random_device device;
+            std::mt19937 gen(device());
+            std::uniform_int_distribution<s16> distribution(-5000, 5000);
+            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.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.gyro.y.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.gyro.z.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+        }
+        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;
+    case Common::Input::InputType::Stick:
+        status.x = callback.stick_status.x;
+        status.y = callback.stick_status.y;
+        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;
+    case Common::Input::InputType::Motion:
+        status.analog.properties.range = 1.0f;
+        raw_value = callback.motion_status.accel.x.raw_value;
+        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;
+}
+
+Common::Input::AnalogStatus TransformToAnalog(const Common::Input::CallbackStatus& callback) {
+    Common::Input::AnalogStatus status{};
+
+    switch (callback.type) {
+    case Common::Input::InputType::Analog:
+        status.properties = callback.analog_status.properties;
+        status.raw_value = callback.analog_status.raw_value;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to analog not implemented", callback.type);
+        break;
+    }
+
+    SanitizeAnalog(status, false);
+
+    // Adjust if value is inverted
+    status.value = status.properties.inverted ? -status.value : status.value;
+
+    return status;
+}
+
+Common::Input::CameraStatus TransformToCamera(const Common::Input::CallbackStatus& callback) {
+    Common::Input::CameraStatus camera{};
+    switch (callback.type) {
+    case Common::Input::InputType::IrSensor:
+        camera = {
+            .format = callback.camera_status,
+            .data = callback.raw_data,
+        };
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to camera not implemented", callback.type);
+        break;
+    }
+
+    return camera;
+}
+
+Common::Input::NfcStatus TransformToNfc(const Common::Input::CallbackStatus& callback) {
+    Common::Input::NfcStatus nfc{};
+    switch (callback.type) {
+    case Common::Input::InputType::Nfc:
+        return callback.nfc_status;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to NFC not implemented", callback.type);
+        break;
+    }
+
+    return nfc;
+}
+
+Common::Input::BodyColorStatus TransformToColor(const Common::Input::CallbackStatus& callback) {
+    switch (callback.type) {
+    case Common::Input::InputType::Color:
+        return callback.color_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to color not implemented", callback.type);
+        return {};
+        break;
+    }
+}
+
+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 formatted
+    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) < 0.75f) {
+        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) < 0.75f) {
+        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 formatted
+    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/hid_core/frontend/input_converter.h

@@ -0,0 +1,119 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#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 callback 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 callback 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 callback 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 callback 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 callback 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 callback Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TriggerStatus object.
+ */
+Common::Input::TriggerStatus TransformToTrigger(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid analog status. Applies offset, deadzone, range and
+ * invert properties to the output.
+ *
+ * @param callback Supported callbacks: Analog.
+ * @return A valid AnalogStatus object.
+ */
+Common::Input::AnalogStatus TransformToAnalog(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid camera status.
+ *
+ * @param callback Supported callbacks: Camera.
+ * @return A valid CameraObject object.
+ */
+Common::Input::CameraStatus TransformToCamera(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid nfc status.
+ *
+ * @param callback Supported callbacks: Nfc.
+ * @return A valid data tag vector.
+ */
+Common::Input::NfcStatus TransformToNfc(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid color status.
+ *
+ * @param callback Supported callbacks: Color.
+ * @return A valid Color object.
+ */
+Common::Input::BodyColorStatus TransformToColor(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw analog data into a valid analog value
+ * @param analog An analog object containing raw data and properties
+ * @param clamp_value 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 analog_x raw analog data and properties for the x-axis
+ * @param analog_y raw analog data and properties for the y-axis
+ * @param clamp_value 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/hid_core/frontend/input_interpreter.cpp

@@ -0,0 +1,64 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/hid/hid_server.h"
+#include "core/hle/service/sm/sm.h"
+#include "hid_core/frontend/input_interpreter.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resource_manager.h"
+#include "hid_core/resources/npad/npad.h"
+
+InputInterpreter::InputInterpreter(Core::System& system)
+    : npad{system.ServiceManager()
+               .GetService<Service::HID::IHidServer>("hid")
+               ->GetResourceManager()
+               ->GetNpad()} {
+    ResetButtonStates();
+}
+
+InputInterpreter::~InputInterpreter() = default;
+
+void InputInterpreter::PollInput() {
+    if (npad == nullptr) {
+        return;
+    }
+    const auto 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] = Core::HID::NpadButton::All;
+
+    for (std::size_t i = 1; i < button_states.size(); ++i) {
+        button_states[i] = Core::HID::NpadButton::None;
+    }
+}
+
+bool InputInterpreter::IsButtonPressed(Core::HID::NpadButton button) const {
+    return True(button_states[current_index] & button);
+}
+
+bool InputInterpreter::IsButtonPressedOnce(Core::HID::NpadButton button) const {
+    const bool current_press = True(button_states[current_index] & button);
+    const bool previous_press = True(button_states[previous_index] & button);
+
+    return current_press && !previous_press;
+}
+
+bool InputInterpreter::IsButtonHeld(Core::HID::NpadButton button) const {
+    Core::HID::NpadButton held_buttons{button_states[0]};
+
+    for (std::size_t i = 1; i < button_states.size(); ++i) {
+        held_buttons &= button_states[i];
+    }
+
+    return True(held_buttons & button);
+}

src/hid_core/frontend/input_interpreter.h

@@ -0,0 +1,111 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+
+namespace Core {
+class System;
+}
+
+namespace Core::HID {
+enum class NpadButton : u64;
+}
+
+namespace Service::HID {
+class 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:
+    std::shared_ptr<Service::HID::NPad> npad;
+
+    /// Stores 9 consecutive button states polled from HID.
+    std::array<Core::HID::NpadButton, 9> button_states{};
+
+    std::size_t previous_index{};
+    std::size_t current_index{};
+};

src/hid_core/frontend/motion_input.cpp

@@ -0,0 +1,357 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <cmath>
+
+#include "common/math_util.h"
+#include "hid_core/frontend/motion_input.h"
+
+namespace Core::HID {
+
+MotionInput::MotionInput() {
+    // Initialize PID constants with default values
+    SetPID(0.3f, 0.005f, 0.0f);
+    SetGyroThreshold(ThresholdStandard);
+    ResetQuaternion();
+    ResetRotations();
+}
+
+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;
+
+    accel.x = std::clamp(accel.x, -AccelMaxValue, AccelMaxValue);
+    accel.y = std::clamp(accel.y, -AccelMaxValue, AccelMaxValue);
+    accel.z = std::clamp(accel.z, -AccelMaxValue, AccelMaxValue);
+}
+
+void MotionInput::SetGyroscope(const Common::Vec3f& gyroscope) {
+    gyro = gyroscope - gyro_bias;
+
+    gyro.x = std::clamp(gyro.x, -GyroMaxValue, GyroMaxValue);
+    gyro.y = std::clamp(gyro.y, -GyroMaxValue, GyroMaxValue);
+    gyro.z = std::clamp(gyro.z, -GyroMaxValue, GyroMaxValue);
+
+    // Auto adjust gyro_bias to minimize drift
+    if (!IsMoving(IsAtRestRelaxed)) {
+        gyro_bias = (gyro_bias * 0.9999f) + (gyroscope * 0.0001f);
+    }
+
+    // Adjust drift when calibration mode is enabled
+    if (calibration_mode) {
+        gyro_bias = (gyro_bias * 0.99f) + (gyroscope * 0.01f);
+        StopCalibration();
+    }
+
+    if (gyro.Length() < gyro_threshold * user_gyro_threshold) {
+        gyro = {};
+    } else {
+        only_accelerometer = false;
+    }
+}
+
+void MotionInput::SetQuaternion(const Common::Quaternion<f32>& quaternion) {
+    quat = quaternion;
+}
+
+void MotionInput::SetEulerAngles(const Common::Vec3f& euler_angles) {
+    const float cr = std::cos(euler_angles.x * 0.5f);
+    const float sr = std::sin(euler_angles.x * 0.5f);
+    const float cp = std::cos(euler_angles.y * 0.5f);
+    const float sp = std::sin(euler_angles.y * 0.5f);
+    const float cy = std::cos(euler_angles.z * 0.5f);
+    const float sy = std::sin(euler_angles.z * 0.5f);
+
+    quat.w = cr * cp * cy + sr * sp * sy;
+    quat.xyz.x = sr * cp * cy - cr * sp * sy;
+    quat.xyz.y = cr * sp * cy + sr * cp * sy;
+    quat.xyz.z = cr * cp * sy - sr * sp * cy;
+}
+
+void MotionInput::SetGyroBias(const Common::Vec3f& bias) {
+    gyro_bias = bias;
+}
+
+void MotionInput::SetGyroThreshold(f32 threshold) {
+    gyro_threshold = threshold;
+}
+
+void MotionInput::SetUserGyroThreshold(f32 threshold) {
+    user_gyro_threshold = threshold / ThresholdStandard;
+}
+
+void MotionInput::EnableReset(bool reset) {
+    reset_enabled = reset;
+}
+
+void MotionInput::ResetRotations() {
+    rotations = {};
+}
+
+void MotionInput::ResetQuaternion() {
+    quat = {{0.0f, 0.0f, -1.0f}, 0.0f};
+}
+
+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;
+}
+
+void MotionInput::Calibrate() {
+    calibration_mode = true;
+    calibration_counter = 0;
+}
+
+void MotionInput::StopCalibration() {
+    if (calibration_counter++ > CalibrationSamples) {
+        calibration_mode = false;
+        ResetQuaternion();
+        ResetRotations();
+    }
+}
+
+// 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::Vec3f MotionInput::GetGyroBias() const {
+    return gyro_bias;
+}
+
+Common::Quaternion<f32> MotionInput::GetQuaternion() const {
+    return quat;
+}
+
+Common::Vec3f MotionInput::GetRotations() const {
+    return rotations;
+}
+
+Common::Vec3f MotionInput::GetEulerAngles() const {
+    // roll (x-axis rotation)
+    const float sinr_cosp = 2 * (quat.w * quat.xyz.x + quat.xyz.y * quat.xyz.z);
+    const float cosr_cosp = 1 - 2 * (quat.xyz.x * quat.xyz.x + quat.xyz.y * quat.xyz.y);
+
+    // pitch (y-axis rotation)
+    const float sinp = std::sqrt(1 + 2 * (quat.w * quat.xyz.y - quat.xyz.x * quat.xyz.z));
+    const float cosp = std::sqrt(1 - 2 * (quat.w * quat.xyz.y - quat.xyz.x * quat.xyz.z));
+
+    // yaw (z-axis rotation)
+    const float siny_cosp = 2 * (quat.w * quat.xyz.z + quat.xyz.x * quat.xyz.y);
+    const float cosy_cosp = 1 - 2 * (quat.xyz.y * quat.xyz.y + quat.xyz.z * quat.xyz.z);
+
+    return {
+        std::atan2(sinr_cosp, cosr_cosp),
+        2 * std::atan2(sinp, cosp) - Common::PI / 2,
+        std::atan2(siny_cosp, cosy_cosp),
+    };
+}
+
+void MotionInput::ResetOrientation() {
+    if (!reset_enabled || only_accelerometer) {
+        return;
+    }
+    if (!IsMoving(IsAtRestRelaxed) && 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/hid_core/frontend/motion_input.h

@@ -0,0 +1,119 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "common/quaternion.h"
+#include "common/vector_math.h"
+
+namespace Core::HID {
+
+class MotionInput {
+public:
+    static constexpr float ThresholdLoose = 0.01f;
+    static constexpr float ThresholdStandard = 0.007f;
+    static constexpr float ThresholdTight = 0.002f;
+
+    static constexpr float IsAtRestRelaxed = 0.05f;
+    static constexpr float IsAtRestLoose = 0.02f;
+    static constexpr float IsAtRestStandard = 0.01f;
+    static constexpr float IsAtRestTight = 0.005f;
+
+    static constexpr float GyroMaxValue = 5.0f;
+    static constexpr float AccelMaxValue = 7.0f;
+
+    static constexpr std::size_t CalibrationSamples = 300;
+
+    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 SetEulerAngles(const Common::Vec3f& euler_angles);
+    void SetGyroBias(const Common::Vec3f& bias);
+    void SetGyroThreshold(f32 threshold);
+
+    /// Applies a modifier on top of the normal gyro threshold
+    void SetUserGyroThreshold(f32 threshold);
+
+    void EnableReset(bool reset);
+    void ResetRotations();
+    void ResetQuaternion();
+
+    void UpdateRotation(u64 elapsed_time);
+    void UpdateOrientation(u64 elapsed_time);
+
+    void Calibrate();
+
+    [[nodiscard]] std::array<Common::Vec3f, 3> GetOrientation() const;
+    [[nodiscard]] Common::Vec3f GetAcceleration() const;
+    [[nodiscard]] Common::Vec3f GetGyroscope() const;
+    [[nodiscard]] Common::Vec3f GetGyroBias() const;
+    [[nodiscard]] Common::Vec3f GetRotations() const;
+    [[nodiscard]] Common::Quaternion<f32> GetQuaternion() const;
+    [[nodiscard]] Common::Vec3f GetEulerAngles() const;
+
+    [[nodiscard]] bool IsMoving(f32 sensitivity) const;
+    [[nodiscard]] bool IsCalibrated(f32 sensitivity) const;
+
+private:
+    void StopCalibration();
+    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;
+
+    // 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 subtracted from gyro measurements
+    Common::Vec3f gyro_bias;
+
+    // Minimum gyro amplitude to detect if the device is moving
+    f32 gyro_threshold = 0.0f;
+
+    // Multiplies gyro_threshold by this value
+    f32 user_gyro_threshold = 0.0f;
+
+    // Number of invalid sequential 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;
+
+    // When enabled it will aggressively adjust for gyro drift
+    bool calibration_mode = false;
+
+    // Used to auto disable calibration mode
+    std::size_t calibration_counter = 0;
+};
+
+} // namespace Core::HID

src/hid_core/hid_core.cpp

@@ -0,0 +1,222 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/assert.h"
+#include "hid_core/frontend/emulated_console.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/frontend/emulated_devices.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hid_util.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:
+        ASSERT_MSG(false, "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:
+        ASSERT_MSG(false, "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(Service::HID::IndexToNpadIdType(index));
+}
+
+const EmulatedController* HIDCore::GetEmulatedControllerByIndex(std::size_t index) const {
+    return GetEmulatedController(Service::HID::IndexToNpadIdType(index));
+}
+
+void HIDCore::SetSupportedStyleTag(NpadStyleTag style_tag) {
+    supported_style_tag.raw = style_tag.raw;
+    player_1->SetSupportedNpadStyleTag(supported_style_tag);
+    player_2->SetSupportedNpadStyleTag(supported_style_tag);
+    player_3->SetSupportedNpadStyleTag(supported_style_tag);
+    player_4->SetSupportedNpadStyleTag(supported_style_tag);
+    player_5->SetSupportedNpadStyleTag(supported_style_tag);
+    player_6->SetSupportedNpadStyleTag(supported_style_tag);
+    player_7->SetSupportedNpadStyleTag(supported_style_tag);
+    player_8->SetSupportedNpadStyleTag(supported_style_tag);
+    other->SetSupportedNpadStyleTag(supported_style_tag);
+    handheld->SetSupportedNpadStyleTag(supported_style_tag);
+}
+
+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;
+}
+
+NpadIdType HIDCore::GetFirstDisconnectedNpadId() 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::SetLastActiveController(NpadIdType npad_id) {
+    last_active_controller = npad_id;
+}
+
+NpadIdType HIDCore::GetLastActiveController() const {
+    return last_active_controller;
+}
+
+void HIDCore::EnableAllControllerConfiguration() {
+    player_1->EnableConfiguration();
+    player_2->EnableConfiguration();
+    player_3->EnableConfiguration();
+    player_4->EnableConfiguration();
+    player_5->EnableConfiguration();
+    player_6->EnableConfiguration();
+    player_7->EnableConfiguration();
+    player_8->EnableConfiguration();
+    other->EnableConfiguration();
+    handheld->EnableConfiguration();
+}
+
+void HIDCore::DisableAllControllerConfiguration() {
+    player_1->DisableConfiguration();
+    player_2->DisableConfiguration();
+    player_3->DisableConfiguration();
+    player_4->DisableConfiguration();
+    player_5->DisableConfiguration();
+    player_6->DisableConfiguration();
+    player_7->DisableConfiguration();
+    player_8->DisableConfiguration();
+    other->DisableConfiguration();
+    handheld->DisableConfiguration();
+}
+
+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/hid_core/hid_core.h

@@ -0,0 +1,89 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+
+#include "common/common_funcs.h"
+#include "hid_core/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;
+
+    /// Returns the first disconnected npad id
+    NpadIdType GetFirstDisconnectedNpadId() const;
+
+    /// Sets the npad id of the last active controller
+    void SetLastActiveController(NpadIdType npad_id);
+
+    /// Returns the npad id of the last controller that pushed a button
+    NpadIdType GetLastActiveController() const;
+
+    /// Sets all emulated controllers into configuring mode.
+    void EnableAllControllerConfiguration();
+
+    /// Sets all emulated controllers into normal mode.
+    void DisableAllControllerConfiguration();
+
+    /// Reloads all input devices from settings
+    void ReloadInputDevices();
+
+    /// Removes all callbacks from input common
+    void UnloadInputDevices();
+
+    /// Number of emulated controllers
+    static constexpr 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{NpadStyleSet::All};
+    NpadIdType last_active_controller{NpadIdType::Handheld};
+};
+
+} // namespace Core::HID

src/hid_core/hid_result.h

@@ -0,0 +1,67 @@
+// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+
+namespace Service::HID {
+
+constexpr Result PalmaResultSuccess{ErrorModule::HID, 0};
+
+constexpr Result ResultTouchNotInitialized{ErrorModule::HID, 41};
+constexpr Result ResultTouchOverflow{ErrorModule::HID, 42};
+
+constexpr Result NpadInvalidHandle{ErrorModule::HID, 100};
+constexpr Result NpadDeviceIndexOutOfRange{ErrorModule::HID, 107};
+
+constexpr Result ResultVibrationNotInitialized{ErrorModule::HID, 121};
+constexpr Result ResultVibrationInvalidStyleIndex{ErrorModule::HID, 122};
+constexpr Result ResultVibrationInvalidNpadId{ErrorModule::HID, 123};
+constexpr Result ResultVibrationDeviceIndexOutOfRange{ErrorModule::HID, 124};
+constexpr Result ResultVibrationStrengthOutOfRange{ErrorModule::HID, 126};
+constexpr Result ResultVibrationArraySizeMismatch{ErrorModule::HID, 131};
+
+constexpr Result InvalidSixAxisFusionRange{ErrorModule::HID, 423};
+
+constexpr Result ResultNfcIsNotReady{ErrorModule::HID, 461};
+constexpr Result ResultNfcXcdHandleIsNotInitialized{ErrorModule::HID, 464};
+constexpr Result ResultIrSensorIsNotReady{ErrorModule::HID, 501};
+
+constexpr Result ResultGestureOverflow{ErrorModule::HID, 522};
+constexpr Result ResultGestureNotInitialized{ErrorModule::HID, 523};
+
+constexpr Result ResultMcuIsNotReady{ErrorModule::HID, 541};
+
+constexpr Result NpadIsDualJoycon{ErrorModule::HID, 601};
+constexpr Result NpadIsSameType{ErrorModule::HID, 602};
+constexpr Result ResultNpadIsNotProController{ErrorModule::HID, 604};
+
+constexpr Result ResultInvalidNpadId{ErrorModule::HID, 709};
+constexpr Result ResultNpadNotConnected{ErrorModule::HID, 710};
+constexpr Result ResultNpadHandlerOverflow{ErrorModule::HID, 711};
+constexpr Result ResultNpadHandlerNotInitialized{ErrorModule::HID, 712};
+constexpr Result ResultInvalidArraySize{ErrorModule::HID, 715};
+constexpr Result ResultUndefinedStyleset{ErrorModule::HID, 716};
+constexpr Result ResultMultipleStyleSetSelected{ErrorModule::HID, 717};
+
+constexpr Result ResultAppletResourceOverflow{ErrorModule::HID, 1041};
+constexpr Result ResultAppletResourceNotInitialized{ErrorModule::HID, 1042};
+constexpr Result ResultSharedMemoryNotInitialized{ErrorModule::HID, 1043};
+constexpr Result ResultAruidNoAvailableEntries{ErrorModule::HID, 1044};
+constexpr Result ResultAruidAlreadyRegistered{ErrorModule::HID, 1046};
+constexpr Result ResultAruidNotRegistered{ErrorModule::HID, 1047};
+
+constexpr Result ResultNpadResourceOverflow{ErrorModule::HID, 2001};
+constexpr Result ResultNpadResourceNotInitialized{ErrorModule::HID, 2002};
+
+constexpr Result InvalidPalmaHandle{ErrorModule::HID, 3302};
+
+} // namespace Service::HID
+
+namespace Service::IRS {
+
+constexpr Result InvalidProcessorState{ErrorModule::Irsensor, 78};
+constexpr Result InvalidIrCameraHandle{ErrorModule::Irsensor, 204};
+
+} // namespace Service::IRS

src/hid_core/hid_types.h

@@ -0,0 +1,747 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#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"
+#include "common/vector_math.h"
+
+namespace Core::HID {
+
+enum class DeviceIndex : u8 {
+    Left = 0,
+    Right = 1,
+    None = 2,
+    MaxDeviceIndex = 3,
+};
+
+// 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,
+
+    All = 0xFFFFFFFFFFFFFFFFULL,
+};
+DECLARE_ENUM_FLAG_OPERATORS(NpadButton);
+
+enum class KeyboardKeyIndex : u32 {
+    A = 4,
+    B = 5,
+    C = 6,
+    D = 7,
+    E = 8,
+    F = 9,
+    G = 10,
+    H = 11,
+    I = 12,
+    J = 13,
+    K = 14,
+    L = 15,
+    M = 16,
+    N = 17,
+    O = 18,
+    P = 19,
+    Q = 20,
+    R = 21,
+    S = 22,
+    T = 23,
+    U = 24,
+    V = 25,
+    W = 26,
+    X = 27,
+    Y = 28,
+    Z = 29,
+    D1 = 30,
+    D2 = 31,
+    D3 = 32,
+    D4 = 33,
+    D5 = 34,
+    D6 = 35,
+    D7 = 36,
+    D8 = 37,
+    D9 = 38,
+    D0 = 39,
+    Return = 40,
+    Escape = 41,
+    Backspace = 42,
+    Tab = 43,
+    Space = 44,
+    Minus = 45,
+    Plus = 46,
+    OpenBracket = 47,
+    CloseBracket = 48,
+    Pipe = 49,
+    Tilde = 50,
+    Semicolon = 51,
+    Quote = 52,
+    Backquote = 53,
+    Comma = 54,
+    Period = 55,
+    Slash = 56,
+    CapsLock = 57,
+    F1 = 58,
+    F2 = 59,
+    F3 = 60,
+    F4 = 61,
+    F5 = 62,
+    F6 = 63,
+    F7 = 64,
+    F8 = 65,
+    F9 = 66,
+    F10 = 67,
+    F11 = 68,
+    F12 = 69,
+    PrintScreen = 70,
+    ScrollLock = 71,
+    Pause = 72,
+    Insert = 73,
+    Home = 74,
+    PageUp = 75,
+    Delete = 76,
+    End = 77,
+    PageDown = 78,
+    RightArrow = 79,
+    LeftArrow = 80,
+    DownArrow = 81,
+    UpArrow = 82,
+    NumLock = 83,
+    NumPadDivide = 84,
+    NumPadMultiply = 85,
+    NumPadSubtract = 86,
+    NumPadAdd = 87,
+    NumPadEnter = 88,
+    NumPad1 = 89,
+    NumPad2 = 90,
+    NumPad3 = 91,
+    NumPad4 = 92,
+    NumPad5 = 93,
+    NumPad6 = 94,
+    NumPad7 = 95,
+    NumPad8 = 96,
+    NumPad9 = 97,
+    NumPad0 = 98,
+    NumPadDot = 99,
+    Backslash = 100,
+    Application = 101,
+    Power = 102,
+    NumPadEquals = 103,
+    F13 = 104,
+    F14 = 105,
+    F15 = 106,
+    F16 = 107,
+    F17 = 108,
+    F18 = 109,
+    F19 = 110,
+    F20 = 111,
+    F21 = 112,
+    F22 = 113,
+    F23 = 114,
+    F24 = 115,
+    NumPadComma = 133,
+    Ro = 135,
+    KatakanaHiragana = 136,
+    Yen = 137,
+    Henkan = 138,
+    Muhenkan = 139,
+    NumPadCommaPc98 = 140,
+    HangulEnglish = 144,
+    Hanja = 145,
+    Katakana = 146,
+    Hiragana = 147,
+    ZenkakuHankaku = 148,
+    LeftControl = 224,
+    LeftShift = 225,
+    LeftAlt = 226,
+    LeftGui = 227,
+    RightControl = 228,
+    RightShift = 229,
+    RightAlt = 230,
+    RightGui = 231,
+};
+
+// This is nn::hid::NpadIdType
+enum class NpadIdType : u32 {
+    Player1 = 0x0,
+    Player2 = 0x1,
+    Player3 = 0x2,
+    Player4 = 0x3,
+    Player5 = 0x4,
+    Player6 = 0x5,
+    Player7 = 0x6,
+    Player8 = 0x7,
+    Other = 0x10,
+    Handheld = 0x20,
+
+    Invalid = 0xFFFFFFFF,
+};
+
+enum class NpadInterfaceType : u8 {
+    None = 0,
+    Bluetooth = 1,
+    Rail = 2,
+    Usb = 3,
+    Embedded = 4,
+};
+
+// This is nn::hid::NpadStyleIndex
+enum class NpadStyleIndex : u8 {
+    None = 0,
+    Fullkey = 3,
+    Handheld = 4,
+    HandheldNES = 4,
+    JoyconDual = 5,
+    JoyconLeft = 6,
+    JoyconRight = 7,
+    GameCube = 8,
+    Pokeball = 9,
+    NES = 10,
+    SNES = 12,
+    N64 = 13,
+    SegaGenesis = 14,
+    SystemExt = 32,
+    System = 33,
+    MaxNpadType = 34,
+};
+
+// This is nn::hid::NpadStyleSet
+enum class NpadStyleSet : u32 {
+    None = 0,
+    Fullkey = 1U << 0,
+    Handheld = 1U << 1,
+    JoyDual = 1U << 2,
+    JoyLeft = 1U << 3,
+    JoyRight = 1U << 4,
+    Gc = 1U << 5,
+    Palma = 1U << 6,
+    Lark = 1U << 7,
+    HandheldLark = 1U << 8,
+    Lucia = 1U << 9,
+    Lagoon = 1U << 10,
+    Lager = 1U << 11,
+    SystemExt = 1U << 29,
+    System = 1U << 30,
+
+    All = 0xFFFFFFFFU,
+};
+static_assert(sizeof(NpadStyleSet) == 4, "NpadStyleSet is an invalid size");
+DECLARE_ENUM_FLAG_OPERATORS(NpadStyleSet)
+
+// This is nn::hid::VibrationDevicePosition
+enum class VibrationDevicePosition : u32 {
+    None = 0,
+    Left = 1,
+    Right = 2,
+};
+
+// This is nn::hid::VibrationDeviceType
+enum class VibrationDeviceType : u32 {
+    Unknown = 0,
+    LinearResonantActuator = 1,
+    GcErm = 2,
+    N64 = 3,
+};
+
+// This is nn::hid::VibrationGcErmCommand
+enum class VibrationGcErmCommand : u64 {
+    Stop = 0,
+    Start = 1,
+    StopHard = 2,
+};
+
+// This is nn::hid::GyroscopeZeroDriftMode
+enum class GyroscopeZeroDriftMode : u32 {
+    Loose = 0,
+    Standard = 1,
+    Tight = 2,
+};
+
+// This is nn::hid::TouchScreenModeForNx
+enum class TouchScreenModeForNx : u8 {
+    UseSystemSetting,
+    Finger,
+    Heat2,
+};
+
+// This is nn::hid::system::NpadBatteryLevel
+enum class NpadBatteryLevel : u32 {
+    Empty,
+    Critical,
+    Low,
+    High,
+    Full,
+};
+
+// This is nn::hid::NpadStyleTag
+struct NpadStyleTag {
+    union {
+        NpadStyleSet 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");
+
+struct TouchFinger {
+    u64 last_touch{};
+    Common::Point<float> position{};
+    u32 id{};
+    TouchAttribute attribute{};
+    bool pressed{};
+};
+
+// This is nn::hid::TouchScreenConfigurationForNx
+struct TouchScreenConfigurationForNx {
+    TouchScreenModeForNx mode{TouchScreenModeForNx::UseSystemSetting};
+    INSERT_PADDING_BYTES(0xF);
+};
+static_assert(sizeof(TouchScreenConfigurationForNx) == 0x10,
+              "TouchScreenConfigurationForNx is an invalid size");
+
+struct NpadColor {
+    u8 r{};
+    u8 g{};
+    u8 b{};
+    u8 a{};
+};
+static_assert(sizeof(NpadColor) == 4, "NpadColor is an invalid size");
+
+// This is nn::hid::NpadControllerColor
+struct NpadControllerColor {
+    NpadColor body{};
+    NpadColor 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::NpadPowerInfo
+struct NpadPowerInfo {
+    bool is_powered{};
+    bool is_charging{};
+    INSERT_PADDING_BYTES(0x6);
+    NpadBatteryLevel battery_level{NpadBatteryLevel::Full};
+};
+static_assert(sizeof(NpadPowerInfo) == 0xC, "NpadPowerInfo is an invalid size");
+
+struct LedPattern {
+    LedPattern() {
+        raw = 0;
+    }
+    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;
+    };
+};
+
+struct SleepButtonState {
+    union {
+        u64 raw{};
+
+        // Buttons
+        BitField<0, 1, u64> sleep;
+    };
+};
+static_assert(sizeof(SleepButtonState) == 0x8, "SleepButtonState has incorrect size.");
+
+struct HomeButtonState {
+    union {
+        u64 raw{};
+
+        // Buttons
+        BitField<0, 1, u64> home;
+    };
+};
+static_assert(sizeof(HomeButtonState) == 0x8, "HomeButtonState has incorrect size.");
+
+struct CaptureButtonState {
+    union {
+        u64 raw{};
+
+        // Buttons
+        BitField<0, 1, u64> capture;
+    };
+};
+static_assert(sizeof(CaptureButtonState) == 0x8, "CaptureButtonState has incorrect size.");
+
+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::ConsoleSixAxisSensorHandle
+struct ConsoleSixAxisSensorHandle {
+    u8 unknown_1{};
+    u8 unknown_2{};
+    INSERT_PADDING_BYTES_NOINIT(2);
+};
+static_assert(sizeof(ConsoleSixAxisSensorHandle) == 4,
+              "ConsoleSixAxisSensorHandle is an invalid size");
+
+// This is nn::hid::SixAxisSensorHandle
+struct SixAxisSensorHandle {
+    NpadStyleIndex npad_type{NpadStyleIndex::None};
+    u8 npad_id{};
+    DeviceIndex device_index{DeviceIndex::None};
+    INSERT_PADDING_BYTES_NOINIT(1);
+};
+static_assert(sizeof(SixAxisSensorHandle) == 4, "SixAxisSensorHandle is an invalid size");
+
+// These parameters seem related to how much gyro/accelerometer is used
+struct SixAxisSensorFusionParameters {
+    f32 parameter1{0.03f}; // Range 0.0 to 1.0, default 0.03
+    f32 parameter2{0.4f};  // Default 0.4
+};
+static_assert(sizeof(SixAxisSensorFusionParameters) == 8,
+              "SixAxisSensorFusionParameters is an invalid size");
+
+// This is nn::hid::server::SixAxisSensorProperties
+struct SixAxisSensorProperties {
+    union {
+        u8 raw{};
+        BitField<0, 1, u8> is_newly_assigned;
+        BitField<1, 1, u8> is_firmware_update_available;
+    };
+};
+static_assert(sizeof(SixAxisSensorProperties) == 1, "SixAxisSensorProperties is an invalid size");
+
+// This is nn::hid::SixAxisSensorCalibrationParameter
+struct SixAxisSensorCalibrationParameter {
+    std::array<u8, 0x744> unknown_data;
+};
+static_assert(sizeof(SixAxisSensorCalibrationParameter) == 0x744,
+              "SixAxisSensorCalibrationParameter is an invalid size");
+static_assert(std::is_trivial_v<SixAxisSensorCalibrationParameter>,
+              "SixAxisSensorCalibrationParameter must be trivial.");
+
+// This is nn::hid::SixAxisSensorIcInformation
+struct SixAxisSensorIcInformation {
+    f32 angular_rate;                      // dps
+    std::array<f32, 6> unknown_gyro_data1; // dps
+    std::array<f32, 9> unknown_gyro_data2;
+    std::array<f32, 9> unknown_gyro_data3;
+    f32 acceleration_range;                 // g force
+    std::array<f32, 6> unknown_accel_data1; // g force
+    std::array<f32, 9> unknown_accel_data2;
+    std::array<f32, 9> unknown_accel_data3;
+};
+static_assert(sizeof(SixAxisSensorIcInformation) == 0xC8,
+              "SixAxisSensorIcInformation is an invalid size");
+static_assert(std::is_trivial_v<SixAxisSensorIcInformation>,
+              "SixAxisSensorIcInformation must be trivial.");
+
+// This is nn::hid::SixAxisSensorAttribute
+struct SixAxisSensorAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> is_connected;
+        BitField<1, 1, u32> is_interpolated;
+    };
+};
+static_assert(sizeof(SixAxisSensorAttribute) == 4, "SixAxisSensorAttribute is an invalid size");
+
+// 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{};
+    SixAxisSensorAttribute attribute{};
+    INSERT_PADDING_BYTES(4); // Reserved
+};
+static_assert(sizeof(SixAxisSensorState) == 0x60, "SixAxisSensorState is an invalid size");
+
+// This is nn::hid::VibrationDeviceHandle
+struct VibrationDeviceHandle {
+    NpadStyleIndex npad_type{NpadStyleIndex::None};
+    u8 npad_id{};
+    DeviceIndex device_index{DeviceIndex::None};
+    INSERT_PADDING_BYTES_NOINIT(1);
+};
+static_assert(sizeof(VibrationDeviceHandle) == 4, "SixAxisSensorHandle is an invalid size");
+
+// This is nn::hid::VibrationValue
+struct VibrationValue {
+    f32 low_amplitude{};
+    f32 low_frequency{};
+    f32 high_amplitude{};
+    f32 high_frequency{};
+    bool operator==(const VibrationValue& b) {
+        if (low_amplitude != b.low_amplitude || high_amplitude != b.high_amplitude) {
+            return false;
+        }
+        // Changes in frequency without amplitude don't have any effect
+        if (low_amplitude == 0 && high_amplitude == 0) {
+            return true;
+        }
+        if (low_frequency != b.low_frequency || high_frequency != b.high_frequency) {
+            return false;
+        }
+        return true;
+    }
+};
+static_assert(sizeof(VibrationValue) == 0x10, "VibrationValue has incorrect size.");
+
+constexpr VibrationValue DEFAULT_VIBRATION_VALUE{
+    .low_amplitude = 0.0f,
+    .low_frequency = 160.0f,
+    .high_amplitude = 0.0f,
+    .high_frequency = 320.0f,
+};
+
+// 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::KeyboardAttribute
+struct KeyboardAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> is_connected;
+    };
+};
+static_assert(sizeof(KeyboardAttribute) == 0x4, "KeyboardAttribute 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{};
+    // Axis Order in HW is switched for the wheel
+    s32 delta_wheel_y{};
+    s32 delta_wheel_x{};
+    MouseButton button{};
+    MouseAttribute attribute{};
+};
+static_assert(sizeof(MouseState) == 0x28, "MouseState is an invalid size");
+
+struct UniquePadId {
+    u64 id;
+};
+static_assert(sizeof(UniquePadId) == 0x8, "UniquePadId is an invalid size");
+
+// This is nn::hid::system::FirmwareVersion
+struct FirmwareVersion {
+    u8 major;
+    u8 minor;
+    u8 micro;
+    u8 revision;
+    std::array<char, 0xc> device_identifier;
+};
+static_assert(sizeof(FirmwareVersion) == 0x10, "FirmwareVersion is an invalid size");
+
+} // namespace Core::HID

src/hid_core/hid_util.h

@@ -0,0 +1,146 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "hid_core/hid_result.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+
+constexpr bool IsNpadIdValid(const Core::HID::NpadIdType npad_id) {
+    switch (npad_id) {
+    case Core::HID::NpadIdType::Player1:
+    case Core::HID::NpadIdType::Player2:
+    case Core::HID::NpadIdType::Player3:
+    case Core::HID::NpadIdType::Player4:
+    case Core::HID::NpadIdType::Player5:
+    case Core::HID::NpadIdType::Player6:
+    case Core::HID::NpadIdType::Player7:
+    case Core::HID::NpadIdType::Player8:
+    case Core::HID::NpadIdType::Other:
+    case Core::HID::NpadIdType::Handheld:
+        return true;
+    default:
+        return false;
+    }
+}
+
+constexpr Result IsSixaxisHandleValid(const Core::HID::SixAxisSensorHandle& handle) {
+    const auto npad_id = IsNpadIdValid(static_cast<Core::HID::NpadIdType>(handle.npad_id));
+    const bool device_index = handle.device_index < Core::HID::DeviceIndex::MaxDeviceIndex;
+
+    if (!npad_id) {
+        return ResultInvalidNpadId;
+    }
+    if (!device_index) {
+        return NpadDeviceIndexOutOfRange;
+    }
+
+    return ResultSuccess;
+}
+
+constexpr Result IsVibrationHandleValid(const Core::HID::VibrationDeviceHandle& handle) {
+    switch (handle.npad_type) {
+    case Core::HID::NpadStyleIndex::Fullkey:
+    case Core::HID::NpadStyleIndex::Handheld:
+    case Core::HID::NpadStyleIndex::JoyconDual:
+    case Core::HID::NpadStyleIndex::JoyconLeft:
+    case Core::HID::NpadStyleIndex::JoyconRight:
+    case Core::HID::NpadStyleIndex::GameCube:
+    case Core::HID::NpadStyleIndex::N64:
+    case Core::HID::NpadStyleIndex::SystemExt:
+    case Core::HID::NpadStyleIndex::System:
+        // These support vibration
+        break;
+    default:
+        return ResultVibrationInvalidStyleIndex;
+    }
+
+    if (!IsNpadIdValid(static_cast<Core::HID::NpadIdType>(handle.npad_id))) {
+        return ResultVibrationInvalidNpadId;
+    }
+
+    if (handle.device_index >= Core::HID::DeviceIndex::MaxDeviceIndex) {
+        return ResultVibrationDeviceIndexOutOfRange;
+    }
+
+    return ResultSuccess;
+}
+
+/// Converts a Core::HID::NpadIdType to an array index.
+constexpr size_t NpadIdTypeToIndex(Core::HID::NpadIdType npad_id_type) {
+    switch (npad_id_type) {
+    case Core::HID::NpadIdType::Player1:
+        return 0;
+    case Core::HID::NpadIdType::Player2:
+        return 1;
+    case Core::HID::NpadIdType::Player3:
+        return 2;
+    case Core::HID::NpadIdType::Player4:
+        return 3;
+    case Core::HID::NpadIdType::Player5:
+        return 4;
+    case Core::HID::NpadIdType::Player6:
+        return 5;
+    case Core::HID::NpadIdType::Player7:
+        return 6;
+    case Core::HID::NpadIdType::Player8:
+        return 7;
+    case Core::HID::NpadIdType::Handheld:
+        return 8;
+    case Core::HID::NpadIdType::Other:
+        return 9;
+    default:
+        return 8;
+    }
+}
+
+/// Converts an array index to a Core::HID::NpadIdType
+constexpr Core::HID::NpadIdType IndexToNpadIdType(size_t index) {
+    switch (index) {
+    case 0:
+        return Core::HID::NpadIdType::Player1;
+    case 1:
+        return Core::HID::NpadIdType::Player2;
+    case 2:
+        return Core::HID::NpadIdType::Player3;
+    case 3:
+        return Core::HID::NpadIdType::Player4;
+    case 4:
+        return Core::HID::NpadIdType::Player5;
+    case 5:
+        return Core::HID::NpadIdType::Player6;
+    case 6:
+        return Core::HID::NpadIdType::Player7;
+    case 7:
+        return Core::HID::NpadIdType::Player8;
+    case 8:
+        return Core::HID::NpadIdType::Handheld;
+    case 9:
+        return Core::HID::NpadIdType::Other;
+    default:
+        return Core::HID::NpadIdType::Invalid;
+    }
+}
+
+constexpr Core::HID::NpadStyleSet GetStylesetByIndex(std::size_t index) {
+    switch (index) {
+    case 0:
+        return Core::HID::NpadStyleSet::Fullkey;
+    case 1:
+        return Core::HID::NpadStyleSet::Handheld;
+    case 2:
+        return Core::HID::NpadStyleSet::JoyDual;
+    case 3:
+        return Core::HID::NpadStyleSet::JoyLeft;
+    case 4:
+        return Core::HID::NpadStyleSet::JoyRight;
+    case 5:
+        return Core::HID::NpadStyleSet::Palma;
+    default:
+        return Core::HID::NpadStyleSet::None;
+    }
+}
+
+} // namespace Service::HID

src/hid_core/hidbus/hidbus_base.cpp

@@ -0,0 +1,73 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/kernel/k_readable_event.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hidbus/hidbus_base.h"
+
+namespace Service::HID {
+
+HidbusBase::HidbusBase(Core::System& system_, KernelHelpers::ServiceContext& service_context_)
+    : system(system_), service_context(service_context_) {
+    send_command_async_event = service_context.CreateEvent("hidbus:SendCommandAsyncEvent");
+}
+
+HidbusBase::~HidbusBase() {
+    service_context.CloseEvent(send_command_async_event);
+};
+
+void HidbusBase::ActivateDevice() {
+    if (is_activated) {
+        return;
+    }
+    is_activated = true;
+    OnInit();
+}
+
+void HidbusBase::DeactivateDevice() {
+    if (is_activated) {
+        OnRelease();
+    }
+    is_activated = false;
+}
+
+bool HidbusBase::IsDeviceActivated() const {
+    return is_activated;
+}
+
+void HidbusBase::Enable(bool enable) {
+    device_enabled = enable;
+}
+
+bool HidbusBase::IsEnabled() const {
+    return device_enabled;
+}
+
+bool HidbusBase::IsPollingMode() const {
+    return polling_mode_enabled;
+}
+
+JoyPollingMode HidbusBase::GetPollingMode() const {
+    return polling_mode;
+}
+
+void HidbusBase::SetPollingMode(JoyPollingMode mode) {
+    polling_mode = mode;
+    polling_mode_enabled = true;
+}
+
+void HidbusBase::DisablePollingMode() {
+    polling_mode_enabled = false;
+}
+
+void HidbusBase::SetTransferMemoryAddress(Common::ProcessAddress t_mem) {
+    transfer_memory = t_mem;
+}
+
+Kernel::KReadableEvent& HidbusBase::GetSendCommandAsycEvent() const {
+    return send_command_async_event->GetReadableEvent();
+}
+
+} // namespace Service::HID

src/hid_core/hidbus/hidbus_base.h

@@ -0,0 +1,183 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <span>
+#include "common/typed_address.h"
+#include "core/hle/result.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Service::KernelHelpers {
+class ServiceContext;
+}
+
+namespace Service::HID {
+
+// This is nn::hidbus::JoyPollingMode
+enum class JoyPollingMode : u32 {
+    SixAxisSensorDisable,
+    SixAxisSensorEnable,
+    ButtonOnly,
+};
+
+struct DataAccessorHeader {
+    Result result{ResultUnknown};
+    INSERT_PADDING_WORDS(0x1);
+    std::array<u8, 0x18> unused{};
+    u64 latest_entry{};
+    u64 total_entries{};
+};
+static_assert(sizeof(DataAccessorHeader) == 0x30, "DataAccessorHeader is an invalid size");
+
+struct JoyDisableSixAxisPollingData {
+    std::array<u8, 0x26> data;
+    u8 out_size;
+    INSERT_PADDING_BYTES(0x1);
+    u64 sampling_number;
+};
+static_assert(sizeof(JoyDisableSixAxisPollingData) == 0x30,
+              "JoyDisableSixAxisPollingData is an invalid size");
+
+struct JoyEnableSixAxisPollingData {
+    std::array<u8, 0x8> data;
+    u8 out_size;
+    INSERT_PADDING_BYTES(0x7);
+    u64 sampling_number;
+};
+static_assert(sizeof(JoyEnableSixAxisPollingData) == 0x18,
+              "JoyEnableSixAxisPollingData is an invalid size");
+
+struct JoyButtonOnlyPollingData {
+    std::array<u8, 0x2c> data;
+    u8 out_size;
+    INSERT_PADDING_BYTES(0x3);
+    u64 sampling_number;
+};
+static_assert(sizeof(JoyButtonOnlyPollingData) == 0x38,
+              "JoyButtonOnlyPollingData is an invalid size");
+
+struct JoyDisableSixAxisPollingEntry {
+    u64 sampling_number;
+    JoyDisableSixAxisPollingData polling_data;
+};
+static_assert(sizeof(JoyDisableSixAxisPollingEntry) == 0x38,
+              "JoyDisableSixAxisPollingEntry is an invalid size");
+
+struct JoyEnableSixAxisPollingEntry {
+    u64 sampling_number;
+    JoyEnableSixAxisPollingData polling_data;
+};
+static_assert(sizeof(JoyEnableSixAxisPollingEntry) == 0x20,
+              "JoyEnableSixAxisPollingEntry is an invalid size");
+
+struct JoyButtonOnlyPollingEntry {
+    u64 sampling_number;
+    JoyButtonOnlyPollingData polling_data;
+};
+static_assert(sizeof(JoyButtonOnlyPollingEntry) == 0x40,
+              "JoyButtonOnlyPollingEntry is an invalid size");
+
+struct JoyDisableSixAxisDataAccessor {
+    DataAccessorHeader header{};
+    std::array<JoyDisableSixAxisPollingEntry, 0xb> entries{};
+};
+static_assert(sizeof(JoyDisableSixAxisDataAccessor) == 0x298,
+              "JoyDisableSixAxisDataAccessor is an invalid size");
+
+struct JoyEnableSixAxisDataAccessor {
+    DataAccessorHeader header{};
+    std::array<JoyEnableSixAxisPollingEntry, 0xb> entries{};
+};
+static_assert(sizeof(JoyEnableSixAxisDataAccessor) == 0x190,
+              "JoyEnableSixAxisDataAccessor is an invalid size");
+
+struct ButtonOnlyPollingDataAccessor {
+    DataAccessorHeader header;
+    std::array<JoyButtonOnlyPollingEntry, 0xb> entries;
+};
+static_assert(sizeof(ButtonOnlyPollingDataAccessor) == 0x2F0,
+              "ButtonOnlyPollingDataAccessor is an invalid size");
+
+class HidbusBase {
+public:
+    explicit HidbusBase(Core::System& system_, KernelHelpers::ServiceContext& service_context_);
+    virtual ~HidbusBase();
+
+    void ActivateDevice();
+
+    void DeactivateDevice();
+
+    bool IsDeviceActivated() const;
+
+    // Enables/disables the device
+    void Enable(bool enable);
+
+    // returns true if device is enabled
+    bool IsEnabled() const;
+
+    // returns true if polling mode is enabled
+    bool IsPollingMode() const;
+
+    // returns polling mode
+    JoyPollingMode GetPollingMode() const;
+
+    // Sets and enables JoyPollingMode
+    void SetPollingMode(JoyPollingMode mode);
+
+    // Disables JoyPollingMode
+    void DisablePollingMode();
+
+    // Called on EnableJoyPollingReceiveMode
+    void SetTransferMemoryAddress(Common::ProcessAddress t_mem);
+
+    Kernel::KReadableEvent& GetSendCommandAsycEvent() const;
+
+    virtual void OnInit() {}
+
+    virtual void OnRelease() {}
+
+    // Updates device transfer memory
+    virtual void OnUpdate() {}
+
+    // Returns the device ID of the joycon
+    virtual u8 GetDeviceId() const {
+        return {};
+    }
+
+    // Assigns a command from data
+    virtual bool SetCommand(std::span<const u8> data) {
+        return {};
+    }
+
+    // Returns a reply from a command
+    virtual u64 GetReply(std::span<u8> out_data) const {
+        return {};
+    }
+
+protected:
+    bool is_activated{};
+    bool device_enabled{};
+    bool polling_mode_enabled{};
+    JoyPollingMode polling_mode = {};
+    // TODO(German77): All data accessors need to be replaced with a ring lifo object
+    JoyDisableSixAxisDataAccessor disable_sixaxis_data{};
+    JoyEnableSixAxisDataAccessor enable_sixaxis_data{};
+    ButtonOnlyPollingDataAccessor button_only_data{};
+
+    Common::ProcessAddress transfer_memory{};
+
+    Core::System& system;
+    Kernel::KEvent* send_command_async_event;
+    KernelHelpers::ServiceContext& service_context;
+};
+} // namespace Service::HID

src/hid_core/hidbus/ringcon.cpp

@@ -0,0 +1,291 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/kernel/k_readable_event.h"
+#include "core/memory.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hidbus/ringcon.h"
+
+namespace Service::HID {
+
+RingController::RingController(Core::System& system_,
+                               KernelHelpers::ServiceContext& service_context_)
+    : HidbusBase(system_, service_context_) {
+    input = system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Player1);
+}
+
+RingController::~RingController() = default;
+
+void RingController::OnInit() {
+    input->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                          Common::Input::PollingMode::Ring);
+    return;
+}
+
+void RingController::OnRelease() {
+    input->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
+                          Common::Input::PollingMode::Active);
+    return;
+};
+
+void RingController::OnUpdate() {
+    if (!is_activated) {
+        return;
+    }
+
+    if (!device_enabled) {
+        return;
+    }
+
+    if (!polling_mode_enabled || transfer_memory == 0) {
+        return;
+    }
+
+    // TODO: Increment multitasking counters from motion and sensor data
+
+    switch (polling_mode) {
+    case JoyPollingMode::SixAxisSensorEnable: {
+        enable_sixaxis_data.header.total_entries = 10;
+        enable_sixaxis_data.header.result = ResultSuccess;
+        const auto& last_entry =
+            enable_sixaxis_data.entries[enable_sixaxis_data.header.latest_entry];
+
+        enable_sixaxis_data.header.latest_entry =
+            (enable_sixaxis_data.header.latest_entry + 1) % 10;
+        auto& curr_entry = enable_sixaxis_data.entries[enable_sixaxis_data.header.latest_entry];
+
+        curr_entry.sampling_number = last_entry.sampling_number + 1;
+        curr_entry.polling_data.sampling_number = curr_entry.sampling_number;
+
+        const RingConData ringcon_value = GetSensorValue();
+        curr_entry.polling_data.out_size = sizeof(ringcon_value);
+        std::memcpy(curr_entry.polling_data.data.data(), &ringcon_value, sizeof(ringcon_value));
+
+        system.ApplicationMemory().WriteBlock(transfer_memory, &enable_sixaxis_data,
+                                              sizeof(enable_sixaxis_data));
+        break;
+    }
+    default:
+        LOG_ERROR(Service_HID, "Polling mode not supported {}", polling_mode);
+        break;
+    }
+}
+
+RingController::RingConData RingController::GetSensorValue() const {
+    RingConData ringcon_sensor_value{
+        .status = DataValid::Valid,
+        .data = 0,
+    };
+
+    const f32 force_value = input->GetRingSensorForce().force * range;
+    ringcon_sensor_value.data = static_cast<s16>(force_value) + idle_value;
+
+    return ringcon_sensor_value;
+}
+
+u8 RingController::GetDeviceId() const {
+    return device_id;
+}
+
+u64 RingController::GetReply(std::span<u8> out_data) const {
+    const RingConCommands current_command = command;
+
+    switch (current_command) {
+    case RingConCommands::GetFirmwareVersion:
+        return GetFirmwareVersionReply(out_data);
+    case RingConCommands::ReadId:
+        return GetReadIdReply(out_data);
+    case RingConCommands::c20105:
+        return GetC020105Reply(out_data);
+    case RingConCommands::ReadUnkCal:
+        return GetReadUnkCalReply(out_data);
+    case RingConCommands::ReadFactoryCal:
+        return GetReadFactoryCalReply(out_data);
+    case RingConCommands::ReadUserCal:
+        return GetReadUserCalReply(out_data);
+    case RingConCommands::ReadRepCount:
+        return GetReadRepCountReply(out_data);
+    case RingConCommands::ReadTotalPushCount:
+        return GetReadTotalPushCountReply(out_data);
+    case RingConCommands::ResetRepCount:
+        return GetResetRepCountReply(out_data);
+    case RingConCommands::SaveCalData:
+        return GetSaveDataReply(out_data);
+    default:
+        return GetErrorReply(out_data);
+    }
+}
+
+bool RingController::SetCommand(std::span<const u8> data) {
+    if (data.size() < 4) {
+        LOG_ERROR(Service_HID, "Command size not supported {}", data.size());
+        command = RingConCommands::Error;
+        return false;
+    }
+
+    std::memcpy(&command, data.data(), sizeof(RingConCommands));
+
+    switch (command) {
+    case RingConCommands::GetFirmwareVersion:
+    case RingConCommands::ReadId:
+    case RingConCommands::c20105:
+    case RingConCommands::ReadUnkCal:
+    case RingConCommands::ReadFactoryCal:
+    case RingConCommands::ReadUserCal:
+    case RingConCommands::ReadRepCount:
+    case RingConCommands::ReadTotalPushCount:
+        ASSERT_MSG(data.size() == 0x4, "data.size is not 0x4 bytes");
+        send_command_async_event->Signal();
+        return true;
+    case RingConCommands::ResetRepCount:
+        ASSERT_MSG(data.size() == 0x4, "data.size is not 0x4 bytes");
+        total_rep_count = 0;
+        send_command_async_event->Signal();
+        return true;
+    case RingConCommands::SaveCalData: {
+        ASSERT_MSG(data.size() == 0x14, "data.size is not 0x14 bytes");
+
+        SaveCalData save_info{};
+        std::memcpy(&save_info, data.data(), sizeof(SaveCalData));
+        user_calibration = save_info.calibration;
+        send_command_async_event->Signal();
+        return true;
+    }
+    default:
+        LOG_ERROR(Service_HID, "Command not implemented {}", command);
+        command = RingConCommands::Error;
+        // Signal a reply to avoid softlocking the game
+        send_command_async_event->Signal();
+        return false;
+    }
+}
+
+u64 RingController::GetFirmwareVersionReply(std::span<u8> out_data) const {
+    const FirmwareVersionReply reply{
+        .status = DataValid::Valid,
+        .firmware = version,
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetReadIdReply(std::span<u8> out_data) const {
+    // The values are hardcoded from a real joycon
+    const ReadIdReply reply{
+        .status = DataValid::Valid,
+        .id_l_x0 = 8,
+        .id_l_x0_2 = 41,
+        .id_l_x4 = 22294,
+        .id_h_x0 = 19777,
+        .id_h_x0_2 = 13621,
+        .id_h_x4 = 8245,
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetC020105Reply(std::span<u8> out_data) const {
+    const Cmd020105Reply reply{
+        .status = DataValid::Valid,
+        .data = 1,
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetReadUnkCalReply(std::span<u8> out_data) const {
+    const ReadUnkCalReply reply{
+        .status = DataValid::Valid,
+        .data = 0,
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetReadFactoryCalReply(std::span<u8> out_data) const {
+    const ReadFactoryCalReply reply{
+        .status = DataValid::Valid,
+        .calibration = factory_calibration,
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetReadUserCalReply(std::span<u8> out_data) const {
+    const ReadUserCalReply reply{
+        .status = DataValid::Valid,
+        .calibration = user_calibration,
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetReadRepCountReply(std::span<u8> out_data) const {
+    const GetThreeByteReply reply{
+        .status = DataValid::Valid,
+        .data = {total_rep_count, 0, 0},
+        .crc = GetCrcValue({total_rep_count, 0, 0, 0}),
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetReadTotalPushCountReply(std::span<u8> out_data) const {
+    const GetThreeByteReply reply{
+        .status = DataValid::Valid,
+        .data = {total_push_count, 0, 0},
+        .crc = GetCrcValue({total_push_count, 0, 0, 0}),
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetResetRepCountReply(std::span<u8> out_data) const {
+    return GetReadRepCountReply(out_data);
+}
+
+u64 RingController::GetSaveDataReply(std::span<u8> out_data) const {
+    const StatusReply reply{
+        .status = DataValid::Valid,
+    };
+
+    return GetData(reply, out_data);
+}
+
+u64 RingController::GetErrorReply(std::span<u8> out_data) const {
+    const ErrorReply reply{
+        .status = DataValid::BadCRC,
+    };
+
+    return GetData(reply, out_data);
+}
+
+u8 RingController::GetCrcValue(const std::vector<u8>& data) const {
+    u8 crc = 0;
+    for (std::size_t index = 0; index < data.size(); index++) {
+        for (u8 i = 0x80; i > 0; i >>= 1) {
+            bool bit = (crc & 0x80) != 0;
+            if ((data[index] & i) != 0) {
+                bit = !bit;
+            }
+            crc <<= 1;
+            if (bit) {
+                crc ^= 0x8d;
+            }
+        }
+    }
+    return crc;
+}
+
+template <typename T>
+u64 RingController::GetData(const T& reply, std::span<u8> out_data) const {
+    static_assert(std::is_trivially_copyable_v<T>);
+    const auto data_size = static_cast<u64>(std::min(sizeof(reply), out_data.size()));
+    std::memcpy(out_data.data(), &reply, data_size);
+    return data_size;
+}
+
+} // namespace Service::HID

src/hid_core/hidbus/ringcon.h

@@ -0,0 +1,253 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <span>
+
+#include "common/common_types.h"
+#include "hid_core/hidbus/hidbus_base.h"
+
+namespace Core::HID {
+class EmulatedController;
+} // namespace Core::HID
+
+namespace Service::HID {
+
+class RingController final : public HidbusBase {
+public:
+    explicit RingController(Core::System& system_, KernelHelpers::ServiceContext& service_context_);
+    ~RingController() override;
+
+    void OnInit() override;
+
+    void OnRelease() override;
+
+    // Updates ringcon transfer memory
+    void OnUpdate() override;
+
+    // Returns the device ID of the joycon
+    u8 GetDeviceId() const override;
+
+    // Assigns a command from data
+    bool SetCommand(std::span<const u8> data) override;
+
+    // Returns a reply from a command
+    u64 GetReply(std::span<u8> data) const override;
+
+private:
+    // These values are obtained from a real ring controller
+    static constexpr s16 idle_value = 2280;
+    static constexpr s16 idle_deadzone = 120;
+    static constexpr s16 range = 2500;
+
+    // Most missing command names are leftovers from other firmware versions
+    enum class RingConCommands : u32 {
+        GetFirmwareVersion = 0x00020000,
+        ReadId = 0x00020100,
+        JoyPolling = 0x00020101,
+        Unknown1 = 0x00020104,
+        c20105 = 0x00020105,
+        Unknown2 = 0x00020204,
+        Unknown3 = 0x00020304,
+        Unknown4 = 0x00020404,
+        ReadUnkCal = 0x00020504,
+        ReadFactoryCal = 0x00020A04,
+        Unknown5 = 0x00021104,
+        Unknown6 = 0x00021204,
+        Unknown7 = 0x00021304,
+        ReadUserCal = 0x00021A04,
+        ReadRepCount = 0x00023104,
+        ReadTotalPushCount = 0x00023204,
+        ResetRepCount = 0x04013104,
+        Unknown8 = 0x04011104,
+        Unknown9 = 0x04011204,
+        Unknown10 = 0x04011304,
+        SaveCalData = 0x10011A04,
+        Error = 0xFFFFFFFF,
+    };
+
+    enum class DataValid : u32 {
+        Valid,
+        BadCRC,
+        Cal,
+    };
+
+    struct FirmwareVersion {
+        u8 sub;
+        u8 main;
+    };
+    static_assert(sizeof(FirmwareVersion) == 0x2, "FirmwareVersion is an invalid size");
+
+    struct FactoryCalibration {
+        s32_le os_max;
+        s32_le hk_max;
+        s32_le zero_min;
+        s32_le zero_max;
+    };
+    static_assert(sizeof(FactoryCalibration) == 0x10, "FactoryCalibration is an invalid size");
+
+    struct CalibrationValue {
+        s16 value;
+        u16 crc;
+    };
+    static_assert(sizeof(CalibrationValue) == 0x4, "CalibrationValue is an invalid size");
+
+    struct UserCalibration {
+        CalibrationValue os_max;
+        CalibrationValue hk_max;
+        CalibrationValue zero;
+    };
+    static_assert(sizeof(UserCalibration) == 0xC, "UserCalibration is an invalid size");
+
+    struct SaveCalData {
+        RingConCommands command;
+        UserCalibration calibration;
+        INSERT_PADDING_BYTES_NOINIT(4);
+    };
+    static_assert(sizeof(SaveCalData) == 0x14, "SaveCalData is an invalid size");
+    static_assert(std::is_trivially_copyable_v<SaveCalData>,
+                  "SaveCalData must be trivially copyable");
+
+    struct FirmwareVersionReply {
+        DataValid status;
+        FirmwareVersion firmware;
+        INSERT_PADDING_BYTES(0x2);
+    };
+    static_assert(sizeof(FirmwareVersionReply) == 0x8, "FirmwareVersionReply is an invalid size");
+
+    struct Cmd020105Reply {
+        DataValid status;
+        u8 data;
+        INSERT_PADDING_BYTES(0x3);
+    };
+    static_assert(sizeof(Cmd020105Reply) == 0x8, "Cmd020105Reply is an invalid size");
+
+    struct StatusReply {
+        DataValid status;
+    };
+    static_assert(sizeof(StatusReply) == 0x4, "StatusReply is an invalid size");
+
+    struct GetThreeByteReply {
+        DataValid status;
+        std::array<u8, 3> data;
+        u8 crc;
+    };
+    static_assert(sizeof(GetThreeByteReply) == 0x8, "GetThreeByteReply is an invalid size");
+
+    struct ReadUnkCalReply {
+        DataValid status;
+        u16 data;
+        INSERT_PADDING_BYTES(0x2);
+    };
+    static_assert(sizeof(ReadUnkCalReply) == 0x8, "ReadUnkCalReply is an invalid size");
+
+    struct ReadFactoryCalReply {
+        DataValid status;
+        FactoryCalibration calibration;
+    };
+    static_assert(sizeof(ReadFactoryCalReply) == 0x14, "ReadFactoryCalReply is an invalid size");
+
+    struct ReadUserCalReply {
+        DataValid status;
+        UserCalibration calibration;
+        INSERT_PADDING_BYTES(0x4);
+    };
+    static_assert(sizeof(ReadUserCalReply) == 0x14, "ReadUserCalReply is an invalid size");
+
+    struct ReadIdReply {
+        DataValid status;
+        u16 id_l_x0;
+        u16 id_l_x0_2;
+        u16 id_l_x4;
+        u16 id_h_x0;
+        u16 id_h_x0_2;
+        u16 id_h_x4;
+    };
+    static_assert(sizeof(ReadIdReply) == 0x10, "ReadIdReply is an invalid size");
+
+    struct ErrorReply {
+        DataValid status;
+        INSERT_PADDING_BYTES(0x3);
+    };
+    static_assert(sizeof(ErrorReply) == 0x8, "ErrorReply is an invalid size");
+
+    struct RingConData {
+        DataValid status;
+        s16_le data;
+        INSERT_PADDING_BYTES(0x2);
+    };
+    static_assert(sizeof(RingConData) == 0x8, "RingConData is an invalid size");
+
+    // Returns RingConData struct with pressure sensor values
+    RingConData GetSensorValue() const;
+
+    // Returns 8 byte reply with firmware version
+    u64 GetFirmwareVersionReply(std::span<u8> out_data) const;
+
+    // Returns 16 byte reply with ID values
+    u64 GetReadIdReply(std::span<u8> out_data) const;
+
+    // (STUBBED) Returns 8 byte reply
+    u64 GetC020105Reply(std::span<u8> out_data) const;
+
+    // (STUBBED) Returns 8 byte empty reply
+    u64 GetReadUnkCalReply(std::span<u8> out_data) const;
+
+    // Returns 20 byte reply with factory calibration values
+    u64 GetReadFactoryCalReply(std::span<u8> out_data) const;
+
+    // Returns 20 byte reply with user calibration values
+    u64 GetReadUserCalReply(std::span<u8> out_data) const;
+
+    // Returns 8 byte reply
+    u64 GetReadRepCountReply(std::span<u8> out_data) const;
+
+    // Returns 8 byte reply
+    u64 GetReadTotalPushCountReply(std::span<u8> out_data) const;
+
+    // Returns 8 byte reply
+    u64 GetResetRepCountReply(std::span<u8> out_data) const;
+
+    // Returns 4 byte save data reply
+    u64 GetSaveDataReply(std::span<u8> out_data) const;
+
+    // Returns 8 byte error reply
+    u64 GetErrorReply(std::span<u8> out_data) const;
+
+    // Returns 8 bit redundancy check from provided data
+    u8 GetCrcValue(const std::vector<u8>& data) const;
+
+    // Converts structs to an u8 vector equivalent
+    template <typename T>
+    u64 GetData(const T& reply, std::span<u8> out_data) const;
+
+    RingConCommands command{RingConCommands::Error};
+
+    // These counters are used in multitasking mode while the switch is sleeping
+    // Total steps taken
+    u8 total_rep_count = 0;
+    // Total times the ring was pushed
+    u8 total_push_count = 0;
+
+    const u8 device_id = 0x20;
+    const FirmwareVersion version = {
+        .sub = 0x0,
+        .main = 0x2c,
+    };
+    const FactoryCalibration factory_calibration = {
+        .os_max = idle_value + range + idle_deadzone,
+        .hk_max = idle_value - range - idle_deadzone,
+        .zero_min = idle_value - idle_deadzone,
+        .zero_max = idle_value + idle_deadzone,
+    };
+    UserCalibration user_calibration = {
+        .os_max = {.value = range, .crc = 228},
+        .hk_max = {.value = -range, .crc = 239},
+        .zero = {.value = idle_value, .crc = 225},
+    };
+
+    Core::HID::EmulatedController* input;
+};
+} // namespace Service::HID

src/hid_core/hidbus/starlink.cpp

@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hidbus/starlink.h"
+
+namespace Service::HID {
+constexpr u8 DEVICE_ID = 0x28;
+
+Starlink::Starlink(Core::System& system_, KernelHelpers::ServiceContext& service_context_)
+    : HidbusBase(system_, service_context_) {}
+Starlink::~Starlink() = default;
+
+void Starlink::OnInit() {
+    return;
+}
+
+void Starlink::OnRelease() {
+    return;
+};
+
+void Starlink::OnUpdate() {
+    if (!is_activated) {
+        return;
+    }
+    if (!device_enabled) {
+        return;
+    }
+    if (!polling_mode_enabled || transfer_memory == 0) {
+        return;
+    }
+
+    LOG_ERROR(Service_HID, "Polling mode not supported {}", polling_mode);
+}
+
+u8 Starlink::GetDeviceId() const {
+    return DEVICE_ID;
+}
+
+u64 Starlink::GetReply(std::span<u8> out_data) const {
+    return {};
+}
+
+bool Starlink::SetCommand(std::span<const u8> data) {
+    LOG_ERROR(Service_HID, "Command not implemented");
+    return false;
+}
+
+} // namespace Service::HID

src/hid_core/hidbus/starlink.h

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "hid_core/hidbus/hidbus_base.h"
+
+namespace Core::HID {
+class EmulatedController;
+} // namespace Core::HID
+
+namespace Service::HID {
+
+class Starlink final : public HidbusBase {
+public:
+    explicit Starlink(Core::System& system_, KernelHelpers::ServiceContext& service_context_);
+    ~Starlink() override;
+
+    void OnInit() override;
+
+    void OnRelease() override;
+
+    // Updates ringcon transfer memory
+    void OnUpdate() override;
+
+    // Returns the device ID of the joycon
+    u8 GetDeviceId() const override;
+
+    // Assigns a command from data
+    bool SetCommand(std::span<const u8> data) override;
+
+    // Returns a reply from a command
+    u64 GetReply(std::span<u8> out_data) const override;
+};
+
+} // namespace Service::HID

src/hid_core/hidbus/stubbed.cpp

@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hidbus/stubbed.h"
+
+namespace Service::HID {
+constexpr u8 DEVICE_ID = 0xFF;
+
+HidbusStubbed::HidbusStubbed(Core::System& system_, KernelHelpers::ServiceContext& service_context_)
+    : HidbusBase(system_, service_context_) {}
+HidbusStubbed::~HidbusStubbed() = default;
+
+void HidbusStubbed::OnInit() {
+    return;
+}
+
+void HidbusStubbed::OnRelease() {
+    return;
+};
+
+void HidbusStubbed::OnUpdate() {
+    if (!is_activated) {
+        return;
+    }
+    if (!device_enabled) {
+        return;
+    }
+    if (!polling_mode_enabled || transfer_memory == 0) {
+        return;
+    }
+
+    LOG_ERROR(Service_HID, "Polling mode not supported {}", polling_mode);
+}
+
+u8 HidbusStubbed::GetDeviceId() const {
+    return DEVICE_ID;
+}
+
+u64 HidbusStubbed::GetReply(std::span<u8> out_data) const {
+    return {};
+}
+
+bool HidbusStubbed::SetCommand(std::span<const u8> data) {
+    LOG_ERROR(Service_HID, "Command not implemented");
+    return false;
+}
+
+} // namespace Service::HID

src/hid_core/hidbus/stubbed.h

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "hid_core/hidbus/hidbus_base.h"
+
+namespace Core::HID {
+class EmulatedController;
+} // namespace Core::HID
+
+namespace Service::HID {
+
+class HidbusStubbed final : public HidbusBase {
+public:
+    explicit HidbusStubbed(Core::System& system_, KernelHelpers::ServiceContext& service_context_);
+    ~HidbusStubbed() override;
+
+    void OnInit() override;
+
+    void OnRelease() override;
+
+    // Updates ringcon transfer memory
+    void OnUpdate() override;
+
+    // Returns the device ID of the joycon
+    u8 GetDeviceId() const override;
+
+    // Assigns a command from data
+    bool SetCommand(std::span<const u8> data) override;
+
+    // Returns a reply from a command
+    u64 GetReply(std::span<u8> out_data) const override;
+};
+
+} // namespace Service::HID

src/hid_core/irsensor/clustering_processor.cpp

@@ -0,0 +1,267 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <queue>
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/irsensor/clustering_processor.h"
+
+namespace Service::IRS {
+ClusteringProcessor::ClusteringProcessor(Core::System& system_,
+                                         Core::IrSensor::DeviceFormat& device_format,
+                                         std::size_t npad_index)
+    : device{device_format}, system{system_} {
+    npad_device = system.HIDCore().GetEmulatedControllerByIndex(npad_index);
+
+    device.mode = Core::IrSensor::IrSensorMode::ClusteringProcessor;
+    device.camera_status = Core::IrSensor::IrCameraStatus::Unconnected;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Stopped;
+    SetDefaultConfig();
+
+    shared_memory = std::construct_at(
+        reinterpret_cast<ClusteringSharedMemory*>(&device_format.state.processor_raw_data));
+
+    Core::HID::ControllerUpdateCallback engine_callback{
+        .on_change = [this](Core::HID::ControllerTriggerType type) { OnControllerUpdate(type); },
+        .is_npad_service = true,
+    };
+    callback_key = npad_device->SetCallback(engine_callback);
+}
+
+ClusteringProcessor::~ClusteringProcessor() {
+    npad_device->DeleteCallback(callback_key);
+};
+
+void ClusteringProcessor::StartProcessor() {
+    device.camera_status = Core::IrSensor::IrCameraStatus::Available;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Ready;
+}
+
+void ClusteringProcessor::SuspendProcessor() {}
+
+void ClusteringProcessor::StopProcessor() {}
+
+void ClusteringProcessor::OnControllerUpdate(Core::HID::ControllerTriggerType type) {
+    if (type != Core::HID::ControllerTriggerType::IrSensor) {
+        return;
+    }
+
+    next_state = {};
+    const auto& camera_data = npad_device->GetCamera();
+    auto filtered_image = camera_data.data;
+
+    RemoveLowIntensityData(filtered_image);
+
+    const auto window_start_x = static_cast<std::size_t>(current_config.window_of_interest.x);
+    const auto window_start_y = static_cast<std::size_t>(current_config.window_of_interest.y);
+    const auto window_end_x =
+        window_start_x + static_cast<std::size_t>(current_config.window_of_interest.width);
+    const auto window_end_y =
+        window_start_y + static_cast<std::size_t>(current_config.window_of_interest.height);
+
+    for (std::size_t y = window_start_y; y < window_end_y; y++) {
+        for (std::size_t x = window_start_x; x < window_end_x; x++) {
+            u8 pixel = GetPixel(filtered_image, x, y);
+            if (pixel == 0) {
+                continue;
+            }
+            const auto cluster = GetClusterProperties(filtered_image, x, y);
+            if (cluster.pixel_count > current_config.pixel_count_max) {
+                continue;
+            }
+            if (cluster.pixel_count < current_config.pixel_count_min) {
+                continue;
+            }
+            // Cluster object limit reached
+            if (next_state.object_count >= next_state.data.size()) {
+                continue;
+            }
+            next_state.data[next_state.object_count] = cluster;
+            next_state.object_count++;
+        }
+    }
+
+    next_state.sampling_number = camera_data.sample;
+    next_state.timestamp = system.CoreTiming().GetGlobalTimeNs().count();
+    next_state.ambient_noise_level = Core::IrSensor::CameraAmbientNoiseLevel::Low;
+    shared_memory->clustering_lifo.WriteNextEntry(next_state);
+
+    if (!IsProcessorActive()) {
+        StartProcessor();
+    }
+}
+
+void ClusteringProcessor::RemoveLowIntensityData(std::vector<u8>& data) {
+    for (u8& pixel : data) {
+        if (pixel < current_config.pixel_count_min) {
+            pixel = 0;
+        }
+    }
+}
+
+ClusteringProcessor::ClusteringData ClusteringProcessor::GetClusterProperties(std::vector<u8>& data,
+                                                                              std::size_t x,
+                                                                              std::size_t y) {
+    using DataPoint = Common::Point<std::size_t>;
+    std::queue<DataPoint> search_points{};
+    ClusteringData current_cluster = GetPixelProperties(data, x, y);
+    SetPixel(data, x, y, 0);
+    search_points.emplace<DataPoint>({x, y});
+
+    while (!search_points.empty()) {
+        const auto point = search_points.front();
+        search_points.pop();
+
+        // Avoid negative numbers
+        if (point.x == 0 || point.y == 0) {
+            continue;
+        }
+
+        std::array<DataPoint, 4> new_points{
+            DataPoint{point.x - 1, point.y},
+            {point.x, point.y - 1},
+            {point.x + 1, point.y},
+            {point.x, point.y + 1},
+        };
+
+        for (const auto new_point : new_points) {
+            if (new_point.x >= width) {
+                continue;
+            }
+            if (new_point.y >= height) {
+                continue;
+            }
+            if (GetPixel(data, new_point.x, new_point.y) < current_config.object_intensity_min) {
+                continue;
+            }
+            const ClusteringData cluster = GetPixelProperties(data, new_point.x, new_point.y);
+            current_cluster = MergeCluster(current_cluster, cluster);
+            SetPixel(data, new_point.x, new_point.y, 0);
+            search_points.emplace<DataPoint>({new_point.x, new_point.y});
+        }
+    }
+
+    return current_cluster;
+}
+
+ClusteringProcessor::ClusteringData ClusteringProcessor::GetPixelProperties(
+    const std::vector<u8>& data, std::size_t x, std::size_t y) const {
+    return {
+        .average_intensity = GetPixel(data, x, y) / 255.0f,
+        .centroid =
+            {
+                .x = static_cast<f32>(x),
+                .y = static_cast<f32>(y),
+
+            },
+        .pixel_count = 1,
+        .bound =
+            {
+                .x = static_cast<s16>(x),
+                .y = static_cast<s16>(y),
+                .width = 1,
+                .height = 1,
+            },
+    };
+}
+
+ClusteringProcessor::ClusteringData ClusteringProcessor::MergeCluster(
+    const ClusteringData a, const ClusteringData b) const {
+    const f32 a_pixel_count = static_cast<f32>(a.pixel_count);
+    const f32 b_pixel_count = static_cast<f32>(b.pixel_count);
+    const f32 pixel_count = a_pixel_count + b_pixel_count;
+    const f32 average_intensity =
+        (a.average_intensity * a_pixel_count + b.average_intensity * b_pixel_count) / pixel_count;
+    const Core::IrSensor::IrsCentroid centroid = {
+        .x = (a.centroid.x * a_pixel_count + b.centroid.x * b_pixel_count) / pixel_count,
+        .y = (a.centroid.y * a_pixel_count + b.centroid.y * b_pixel_count) / pixel_count,
+    };
+    s16 bound_start_x = a.bound.x < b.bound.x ? a.bound.x : b.bound.x;
+    s16 bound_start_y = a.bound.y < b.bound.y ? a.bound.y : b.bound.y;
+    s16 a_bound_end_x = a.bound.x + a.bound.width;
+    s16 a_bound_end_y = a.bound.y + a.bound.height;
+    s16 b_bound_end_x = b.bound.x + b.bound.width;
+    s16 b_bound_end_y = b.bound.y + b.bound.height;
+
+    const Core::IrSensor::IrsRect bound = {
+        .x = bound_start_x,
+        .y = bound_start_y,
+        .width = a_bound_end_x > b_bound_end_x ? static_cast<s16>(a_bound_end_x - bound_start_x)
+                                               : static_cast<s16>(b_bound_end_x - bound_start_x),
+        .height = a_bound_end_y > b_bound_end_y ? static_cast<s16>(a_bound_end_y - bound_start_y)
+                                                : static_cast<s16>(b_bound_end_y - bound_start_y),
+    };
+
+    return {
+        .average_intensity = average_intensity,
+        .centroid = centroid,
+        .pixel_count = static_cast<u32>(pixel_count),
+        .bound = bound,
+    };
+}
+
+u8 ClusteringProcessor::GetPixel(const std::vector<u8>& data, std::size_t x, std::size_t y) const {
+    if ((y * width) + x >= data.size()) {
+        return 0;
+    }
+    return data[(y * width) + x];
+}
+
+void ClusteringProcessor::SetPixel(std::vector<u8>& data, std::size_t x, std::size_t y, u8 value) {
+    if ((y * width) + x >= data.size()) {
+        return;
+    }
+    data[(y * width) + x] = value;
+}
+
+void ClusteringProcessor::SetDefaultConfig() {
+    using namespace std::literals::chrono_literals;
+    current_config.camera_config.exposure_time = std::chrono::microseconds(200ms).count();
+    current_config.camera_config.gain = 2;
+    current_config.camera_config.is_negative_used = false;
+    current_config.camera_config.light_target = Core::IrSensor::CameraLightTarget::BrightLeds;
+    current_config.window_of_interest = {
+        .x = 0,
+        .y = 0,
+        .width = width,
+        .height = height,
+    };
+    current_config.pixel_count_min = 3;
+    current_config.pixel_count_max = static_cast<u32>(GetDataSize(format));
+    current_config.is_external_light_filter_enabled = true;
+    current_config.object_intensity_min = 150;
+
+    npad_device->SetCameraFormat(format);
+}
+
+void ClusteringProcessor::SetConfig(Core::IrSensor::PackedClusteringProcessorConfig config) {
+    current_config.camera_config.exposure_time = config.camera_config.exposure_time;
+    current_config.camera_config.gain = config.camera_config.gain;
+    current_config.camera_config.is_negative_used = config.camera_config.is_negative_used;
+    current_config.camera_config.light_target =
+        static_cast<Core::IrSensor::CameraLightTarget>(config.camera_config.light_target);
+    current_config.window_of_interest = config.window_of_interest;
+    current_config.pixel_count_min = config.pixel_count_min;
+    current_config.pixel_count_max = config.pixel_count_max;
+    current_config.is_external_light_filter_enabled = config.is_external_light_filter_enabled;
+    current_config.object_intensity_min = config.object_intensity_min;
+
+    LOG_INFO(Service_IRS,
+             "Processor config, exposure_time={}, gain={}, is_negative_used={}, "
+             "light_target={}, window_of_interest=({}, {}, {}, {}), pixel_count_min={}, "
+             "pixel_count_max={}, is_external_light_filter_enabled={}, object_intensity_min={}",
+             current_config.camera_config.exposure_time, current_config.camera_config.gain,
+             current_config.camera_config.is_negative_used,
+             current_config.camera_config.light_target, current_config.window_of_interest.x,
+             current_config.window_of_interest.y, current_config.window_of_interest.width,
+             current_config.window_of_interest.height, current_config.pixel_count_min,
+             current_config.pixel_count_max, current_config.is_external_light_filter_enabled,
+             current_config.object_intensity_min);
+
+    npad_device->SetCameraFormat(format);
+}
+
+} // namespace Service::IRS

src/hid_core/irsensor/clustering_processor.h

@@ -0,0 +1,115 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "hid_core/irsensor/irs_types.h"
+#include "hid_core/irsensor/processor_base.h"
+#include "hid_core/resources/irs_ring_lifo.h"
+
+namespace Core {
+class System;
+}
+
+namespace Core::HID {
+class EmulatedController;
+} // namespace Core::HID
+
+namespace Service::IRS {
+class ClusteringProcessor final : public ProcessorBase {
+public:
+    explicit ClusteringProcessor(Core::System& system_, Core::IrSensor::DeviceFormat& device_format,
+                                 std::size_t npad_index);
+    ~ClusteringProcessor() override;
+
+    // Called when the processor is initialized
+    void StartProcessor() override;
+
+    // Called when the processor is suspended
+    void SuspendProcessor() override;
+
+    // Called when the processor is stopped
+    void StopProcessor() override;
+
+    // Sets config parameters of the camera
+    void SetConfig(Core::IrSensor::PackedClusteringProcessorConfig config);
+
+private:
+    static constexpr auto format = Core::IrSensor::ImageTransferProcessorFormat::Size320x240;
+    static constexpr std::size_t width = 320;
+    static constexpr std::size_t height = 240;
+
+    // This is nn::irsensor::ClusteringProcessorConfig
+    struct ClusteringProcessorConfig {
+        Core::IrSensor::CameraConfig camera_config;
+        Core::IrSensor::IrsRect window_of_interest;
+        u32 pixel_count_min;
+        u32 pixel_count_max;
+        u32 object_intensity_min;
+        bool is_external_light_filter_enabled;
+        INSERT_PADDING_BYTES(3);
+    };
+    static_assert(sizeof(ClusteringProcessorConfig) == 0x30,
+                  "ClusteringProcessorConfig is an invalid size");
+
+    // This is nn::irsensor::AdaptiveClusteringProcessorConfig
+    struct AdaptiveClusteringProcessorConfig {
+        Core::IrSensor::AdaptiveClusteringMode mode;
+        Core::IrSensor::AdaptiveClusteringTargetDistance target_distance;
+    };
+    static_assert(sizeof(AdaptiveClusteringProcessorConfig) == 0x8,
+                  "AdaptiveClusteringProcessorConfig is an invalid size");
+
+    // This is nn::irsensor::ClusteringData
+    struct ClusteringData {
+        f32 average_intensity;
+        Core::IrSensor::IrsCentroid centroid;
+        u32 pixel_count;
+        Core::IrSensor::IrsRect bound;
+    };
+    static_assert(sizeof(ClusteringData) == 0x18, "ClusteringData is an invalid size");
+
+    // This is nn::irsensor::ClusteringProcessorState
+    struct ClusteringProcessorState {
+        s64 sampling_number;
+        u64 timestamp;
+        u8 object_count;
+        INSERT_PADDING_BYTES(3);
+        Core::IrSensor::CameraAmbientNoiseLevel ambient_noise_level;
+        std::array<ClusteringData, 0x10> data;
+    };
+    static_assert(sizeof(ClusteringProcessorState) == 0x198,
+                  "ClusteringProcessorState is an invalid size");
+
+    struct ClusteringSharedMemory {
+        Service::IRS::Lifo<ClusteringProcessorState, 6> clustering_lifo;
+        static_assert(sizeof(clustering_lifo) == 0x9A0, "clustering_lifo is an invalid size");
+        INSERT_PADDING_WORDS(0x11F);
+    };
+    static_assert(sizeof(ClusteringSharedMemory) == 0xE20,
+                  "ClusteringSharedMemory is an invalid size");
+
+    void OnControllerUpdate(Core::HID::ControllerTriggerType type);
+    void RemoveLowIntensityData(std::vector<u8>& data);
+    ClusteringData GetClusterProperties(std::vector<u8>& data, std::size_t x, std::size_t y);
+    ClusteringData GetPixelProperties(const std::vector<u8>& data, std::size_t x,
+                                      std::size_t y) const;
+    ClusteringData MergeCluster(const ClusteringData a, const ClusteringData b) const;
+    u8 GetPixel(const std::vector<u8>& data, std::size_t x, std::size_t y) const;
+    void SetPixel(std::vector<u8>& data, std::size_t x, std::size_t y, u8 value);
+
+    // Sets config parameters of the camera
+    void SetDefaultConfig();
+
+    ClusteringSharedMemory* shared_memory = nullptr;
+    ClusteringProcessorState next_state{};
+
+    ClusteringProcessorConfig current_config{};
+    Core::IrSensor::DeviceFormat& device;
+    Core::HID::EmulatedController* npad_device;
+    int callback_key{};
+
+    Core::System& system;
+};
+} // namespace Service::IRS

src/hid_core/irsensor/image_transfer_processor.cpp

@@ -0,0 +1,154 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/core.h"
+#include "core/memory.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/irsensor/image_transfer_processor.h"
+
+namespace Service::IRS {
+ImageTransferProcessor::ImageTransferProcessor(Core::System& system_,
+                                               Core::IrSensor::DeviceFormat& device_format,
+                                               std::size_t npad_index)
+    : device{device_format}, system{system_} {
+    npad_device = system.HIDCore().GetEmulatedControllerByIndex(npad_index);
+
+    Core::HID::ControllerUpdateCallback engine_callback{
+        .on_change = [this](Core::HID::ControllerTriggerType type) { OnControllerUpdate(type); },
+        .is_npad_service = true,
+    };
+    callback_key = npad_device->SetCallback(engine_callback);
+
+    device.mode = Core::IrSensor::IrSensorMode::ImageTransferProcessor;
+    device.camera_status = Core::IrSensor::IrCameraStatus::Unconnected;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Stopped;
+}
+
+ImageTransferProcessor::~ImageTransferProcessor() {
+    npad_device->DeleteCallback(callback_key);
+};
+
+void ImageTransferProcessor::StartProcessor() {
+    is_active = true;
+    device.camera_status = Core::IrSensor::IrCameraStatus::Available;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Ready;
+    processor_state.sampling_number = 0;
+    processor_state.ambient_noise_level = Core::IrSensor::CameraAmbientNoiseLevel::Low;
+}
+
+void ImageTransferProcessor::SuspendProcessor() {}
+
+void ImageTransferProcessor::StopProcessor() {}
+
+void ImageTransferProcessor::OnControllerUpdate(Core::HID::ControllerTriggerType type) {
+    if (type != Core::HID::ControllerTriggerType::IrSensor) {
+        return;
+    }
+    if (transfer_memory == 0) {
+        return;
+    }
+
+    const auto& camera_data = npad_device->GetCamera();
+
+    // This indicates how much ambient light is present
+    processor_state.ambient_noise_level = Core::IrSensor::CameraAmbientNoiseLevel::Low;
+    processor_state.sampling_number = camera_data.sample;
+
+    if (camera_data.format != current_config.origin_format) {
+        LOG_WARNING(Service_IRS, "Wrong Input format {} expected {}", camera_data.format,
+                    current_config.origin_format);
+        system.ApplicationMemory().ZeroBlock(transfer_memory,
+                                             GetDataSize(current_config.trimming_format));
+        return;
+    }
+
+    if (current_config.origin_format > current_config.trimming_format) {
+        LOG_WARNING(Service_IRS, "Origin format {} is smaller than trimming format {}",
+                    current_config.origin_format, current_config.trimming_format);
+        system.ApplicationMemory().ZeroBlock(transfer_memory,
+                                             GetDataSize(current_config.trimming_format));
+        return;
+    }
+
+    std::vector<u8> window_data{};
+    const auto origin_width = GetDataWidth(current_config.origin_format);
+    const auto origin_height = GetDataHeight(current_config.origin_format);
+    const auto trimming_width = GetDataWidth(current_config.trimming_format);
+    const auto trimming_height = GetDataHeight(current_config.trimming_format);
+    window_data.resize(GetDataSize(current_config.trimming_format));
+
+    if (trimming_width + current_config.trimming_start_x > origin_width ||
+        trimming_height + current_config.trimming_start_y > origin_height) {
+        LOG_WARNING(Service_IRS,
+                    "Trimming area ({}, {}, {}, {}) is outside of origin area ({}, {})",
+                    current_config.trimming_start_x, current_config.trimming_start_y,
+                    trimming_width, trimming_height, origin_width, origin_height);
+        system.ApplicationMemory().ZeroBlock(transfer_memory,
+                                             GetDataSize(current_config.trimming_format));
+        return;
+    }
+
+    for (std::size_t y = 0; y < trimming_height; y++) {
+        for (std::size_t x = 0; x < trimming_width; x++) {
+            const std::size_t window_index = (y * trimming_width) + x;
+            const std::size_t origin_index =
+                ((y + current_config.trimming_start_y) * origin_width) + x +
+                current_config.trimming_start_x;
+            window_data[window_index] = camera_data.data[origin_index];
+        }
+    }
+
+    system.ApplicationMemory().WriteBlock(transfer_memory, window_data.data(),
+                                          GetDataSize(current_config.trimming_format));
+
+    if (!IsProcessorActive()) {
+        StartProcessor();
+    }
+}
+
+void ImageTransferProcessor::SetConfig(Core::IrSensor::PackedImageTransferProcessorConfig config) {
+    current_config.camera_config.exposure_time = config.camera_config.exposure_time;
+    current_config.camera_config.gain = config.camera_config.gain;
+    current_config.camera_config.is_negative_used = config.camera_config.is_negative_used;
+    current_config.camera_config.light_target =
+        static_cast<Core::IrSensor::CameraLightTarget>(config.camera_config.light_target);
+    current_config.origin_format =
+        static_cast<Core::IrSensor::ImageTransferProcessorFormat>(config.format);
+    current_config.trimming_format =
+        static_cast<Core::IrSensor::ImageTransferProcessorFormat>(config.format);
+    current_config.trimming_start_x = 0;
+    current_config.trimming_start_y = 0;
+
+    npad_device->SetCameraFormat(current_config.origin_format);
+}
+
+void ImageTransferProcessor::SetConfig(
+    Core::IrSensor::PackedImageTransferProcessorExConfig config) {
+    current_config.camera_config.exposure_time = config.camera_config.exposure_time;
+    current_config.camera_config.gain = config.camera_config.gain;
+    current_config.camera_config.is_negative_used = config.camera_config.is_negative_used;
+    current_config.camera_config.light_target =
+        static_cast<Core::IrSensor::CameraLightTarget>(config.camera_config.light_target);
+    current_config.origin_format =
+        static_cast<Core::IrSensor::ImageTransferProcessorFormat>(config.origin_format);
+    current_config.trimming_format =
+        static_cast<Core::IrSensor::ImageTransferProcessorFormat>(config.trimming_format);
+    current_config.trimming_start_x = config.trimming_start_x;
+    current_config.trimming_start_y = config.trimming_start_y;
+
+    npad_device->SetCameraFormat(current_config.origin_format);
+}
+
+void ImageTransferProcessor::SetTransferMemoryAddress(Common::ProcessAddress t_mem) {
+    transfer_memory = t_mem;
+}
+
+Core::IrSensor::ImageTransferProcessorState ImageTransferProcessor::GetState(
+    std::span<u8> data) const {
+    const auto size = std::min(GetDataSize(current_config.trimming_format), data.size());
+    system.ApplicationMemory().ReadBlock(transfer_memory, data.data(), size);
+    return processor_state;
+}
+
+} // namespace Service::IRS

src/hid_core/irsensor/image_transfer_processor.h

@@ -0,0 +1,79 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <span>
+
+#include "common/typed_address.h"
+#include "hid_core/irsensor/irs_types.h"
+#include "hid_core/irsensor/processor_base.h"
+
+namespace Core {
+class System;
+}
+
+namespace Core::HID {
+class EmulatedController;
+} // namespace Core::HID
+
+namespace Service::IRS {
+class ImageTransferProcessor final : public ProcessorBase {
+public:
+    explicit ImageTransferProcessor(Core::System& system_,
+                                    Core::IrSensor::DeviceFormat& device_format,
+                                    std::size_t npad_index);
+    ~ImageTransferProcessor() override;
+
+    // Called when the processor is initialized
+    void StartProcessor() override;
+
+    // Called when the processor is suspended
+    void SuspendProcessor() override;
+
+    // Called when the processor is stopped
+    void StopProcessor() override;
+
+    // Sets config parameters of the camera
+    void SetConfig(Core::IrSensor::PackedImageTransferProcessorConfig config);
+    void SetConfig(Core::IrSensor::PackedImageTransferProcessorExConfig config);
+
+    // Transfer memory where the image data will be stored
+    void SetTransferMemoryAddress(Common::ProcessAddress t_mem);
+
+    Core::IrSensor::ImageTransferProcessorState GetState(std::span<u8> data) const;
+
+private:
+    // This is nn::irsensor::ImageTransferProcessorConfig
+    struct ImageTransferProcessorConfig {
+        Core::IrSensor::CameraConfig camera_config;
+        Core::IrSensor::ImageTransferProcessorFormat format;
+    };
+    static_assert(sizeof(ImageTransferProcessorConfig) == 0x20,
+                  "ImageTransferProcessorConfig is an invalid size");
+
+    // This is nn::irsensor::ImageTransferProcessorExConfig
+    struct ImageTransferProcessorExConfig {
+        Core::IrSensor::CameraConfig camera_config;
+        Core::IrSensor::ImageTransferProcessorFormat origin_format;
+        Core::IrSensor::ImageTransferProcessorFormat trimming_format;
+        u16 trimming_start_x;
+        u16 trimming_start_y;
+        bool is_external_light_filter_enabled;
+        INSERT_PADDING_BYTES(3);
+    };
+    static_assert(sizeof(ImageTransferProcessorExConfig) == 0x28,
+                  "ImageTransferProcessorExConfig is an invalid size");
+
+    void OnControllerUpdate(Core::HID::ControllerTriggerType type);
+
+    ImageTransferProcessorExConfig current_config{};
+    Core::IrSensor::ImageTransferProcessorState processor_state{};
+    Core::IrSensor::DeviceFormat& device;
+    Core::HID::EmulatedController* npad_device;
+    int callback_key{};
+
+    Core::System& system;
+    Common::ProcessAddress transfer_memory{};
+};
+} // namespace Service::IRS

src/hid_core/irsensor/ir_led_processor.cpp

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/irsensor/ir_led_processor.h"
+
+namespace Service::IRS {
+IrLedProcessor::IrLedProcessor(Core::IrSensor::DeviceFormat& device_format)
+    : device(device_format) {
+    device.mode = Core::IrSensor::IrSensorMode::IrLedProcessor;
+    device.camera_status = Core::IrSensor::IrCameraStatus::Unconnected;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Stopped;
+}
+
+IrLedProcessor::~IrLedProcessor() = default;
+
+void IrLedProcessor::StartProcessor() {}
+
+void IrLedProcessor::SuspendProcessor() {}
+
+void IrLedProcessor::StopProcessor() {}
+
+void IrLedProcessor::SetConfig(Core::IrSensor::PackedIrLedProcessorConfig config) {
+    current_config.light_target =
+        static_cast<Core::IrSensor::CameraLightTarget>(config.light_target);
+}
+
+} // namespace Service::IRS

src/hid_core/irsensor/ir_led_processor.h

@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "hid_core/irsensor/irs_types.h"
+#include "hid_core/irsensor/processor_base.h"
+
+namespace Service::IRS {
+class IrLedProcessor final : public ProcessorBase {
+public:
+    explicit IrLedProcessor(Core::IrSensor::DeviceFormat& device_format);
+    ~IrLedProcessor() override;
+
+    // Called when the processor is initialized
+    void StartProcessor() override;
+
+    // Called when the processor is suspended
+    void SuspendProcessor() override;
+
+    // Called when the processor is stopped
+    void StopProcessor() override;
+
+    // Sets config parameters of the camera
+    void SetConfig(Core::IrSensor::PackedIrLedProcessorConfig config);
+
+private:
+    // This is nn::irsensor::IrLedProcessorConfig
+    struct IrLedProcessorConfig {
+        Core::IrSensor::CameraLightTarget light_target;
+    };
+    static_assert(sizeof(IrLedProcessorConfig) == 0x4, "IrLedProcessorConfig is an invalid size");
+
+    struct IrLedProcessorState {
+        s64 sampling_number;
+        u64 timestamp;
+        std::array<u8, 0x8> data;
+    };
+    static_assert(sizeof(IrLedProcessorState) == 0x18, "IrLedProcessorState is an invalid size");
+
+    IrLedProcessorConfig current_config{};
+    Core::IrSensor::DeviceFormat& device;
+};
+
+} // namespace Service::IRS

src/hid_core/irsensor/irs_types.h

@@ -0,0 +1,301 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "hid_core/hid_types.h"
+
+namespace Core::IrSensor {
+
+// This is nn::irsensor::CameraAmbientNoiseLevel
+enum class CameraAmbientNoiseLevel : u32 {
+    Low,
+    Medium,
+    High,
+    Unknown3, // This level can't be reached
+};
+
+// This is nn::irsensor::CameraLightTarget
+enum class CameraLightTarget : u32 {
+    AllLeds,
+    BrightLeds,
+    DimLeds,
+    None,
+};
+
+// This is nn::irsensor::PackedCameraLightTarget
+enum class PackedCameraLightTarget : u8 {
+    AllLeds,
+    BrightLeds,
+    DimLeds,
+    None,
+};
+
+// This is nn::irsensor::AdaptiveClusteringMode
+enum class AdaptiveClusteringMode : u32 {
+    StaticFov,
+    DynamicFov,
+};
+
+// This is nn::irsensor::AdaptiveClusteringTargetDistance
+enum class AdaptiveClusteringTargetDistance : u32 {
+    Near,
+    Middle,
+    Far,
+};
+
+// This is nn::irsensor::ImageTransferProcessorFormat
+enum class ImageTransferProcessorFormat : u32 {
+    Size320x240,
+    Size160x120,
+    Size80x60,
+    Size40x30,
+    Size20x15,
+};
+
+// This is nn::irsensor::PackedImageTransferProcessorFormat
+enum class PackedImageTransferProcessorFormat : u8 {
+    Size320x240,
+    Size160x120,
+    Size80x60,
+    Size40x30,
+    Size20x15,
+};
+
+// This is nn::irsensor::IrCameraStatus
+enum class IrCameraStatus : u32 {
+    Available,
+    Unsupported,
+    Unconnected,
+};
+
+// This is nn::irsensor::IrCameraInternalStatus
+enum class IrCameraInternalStatus : u32 {
+    Stopped,
+    FirmwareUpdateNeeded,
+    Unknown2,
+    Unknown3,
+    Unknown4,
+    FirmwareVersionRequested,
+    FirmwareVersionIsInvalid,
+    Ready,
+    Setting,
+};
+
+// This is nn::irsensor::detail::StatusManager::IrSensorMode
+enum class IrSensorMode : u64 {
+    None,
+    MomentProcessor,
+    ClusteringProcessor,
+    ImageTransferProcessor,
+    PointingProcessorMarker,
+    TeraPluginProcessor,
+    IrLedProcessor,
+};
+
+// This is nn::irsensor::ImageProcessorStatus
+enum ImageProcessorStatus : u32 {
+    Stopped,
+    Running,
+};
+
+// This is nn::irsensor::HandAnalysisMode
+enum class HandAnalysisMode : u32 {
+    None,
+    Silhouette,
+    Image,
+    SilhouetteAndImage,
+    SilhouetteOnly,
+};
+
+// This is nn::irsensor::IrSensorFunctionLevel
+enum class IrSensorFunctionLevel : u8 {
+    unknown0,
+    unknown1,
+    unknown2,
+    unknown3,
+    unknown4,
+};
+
+// This is nn::irsensor::MomentProcessorPreprocess
+enum class MomentProcessorPreprocess : u32 {
+    Unknown0,
+    Unknown1,
+};
+
+// This is nn::irsensor::PackedMomentProcessorPreprocess
+enum class PackedMomentProcessorPreprocess : u8 {
+    Unknown0,
+    Unknown1,
+};
+
+// This is nn::irsensor::PointingStatus
+enum class PointingStatus : u32 {
+    Unknown0,
+    Unknown1,
+};
+
+struct IrsRect {
+    s16 x;
+    s16 y;
+    s16 width;
+    s16 height;
+};
+
+struct IrsCentroid {
+    f32 x;
+    f32 y;
+};
+
+struct CameraConfig {
+    u64 exposure_time;
+    CameraLightTarget light_target;
+    u32 gain;
+    bool is_negative_used;
+    INSERT_PADDING_BYTES(7);
+};
+static_assert(sizeof(CameraConfig) == 0x18, "CameraConfig is an invalid size");
+
+struct PackedCameraConfig {
+    u64 exposure_time;
+    PackedCameraLightTarget light_target;
+    u8 gain;
+    bool is_negative_used;
+    INSERT_PADDING_BYTES(5);
+};
+static_assert(sizeof(PackedCameraConfig) == 0x10, "PackedCameraConfig is an invalid size");
+
+// This is nn::irsensor::IrCameraHandle
+struct IrCameraHandle {
+    u8 npad_id{};
+    Core::HID::NpadStyleIndex npad_type{Core::HID::NpadStyleIndex::None};
+    INSERT_PADDING_BYTES(2);
+};
+static_assert(sizeof(IrCameraHandle) == 4, "IrCameraHandle is an invalid size");
+
+// This is nn::irsensor::PackedMcuVersion
+struct PackedMcuVersion {
+    u16 major;
+    u16 minor;
+};
+static_assert(sizeof(PackedMcuVersion) == 4, "PackedMcuVersion is an invalid size");
+
+// This is nn::irsensor::PackedMomentProcessorConfig
+struct PackedMomentProcessorConfig {
+    PackedCameraConfig camera_config;
+    IrsRect window_of_interest;
+    PackedMcuVersion required_mcu_version;
+    PackedMomentProcessorPreprocess preprocess;
+    u8 preprocess_intensity_threshold;
+    INSERT_PADDING_BYTES(2);
+};
+static_assert(sizeof(PackedMomentProcessorConfig) == 0x20,
+              "PackedMomentProcessorConfig is an invalid size");
+
+// This is nn::irsensor::PackedClusteringProcessorConfig
+struct PackedClusteringProcessorConfig {
+    PackedCameraConfig camera_config;
+    IrsRect window_of_interest;
+    PackedMcuVersion required_mcu_version;
+    u32 pixel_count_min;
+    u32 pixel_count_max;
+    u8 object_intensity_min;
+    bool is_external_light_filter_enabled;
+    INSERT_PADDING_BYTES(2);
+};
+static_assert(sizeof(PackedClusteringProcessorConfig) == 0x28,
+              "PackedClusteringProcessorConfig is an invalid size");
+
+// This is nn::irsensor::PackedImageTransferProcessorConfig
+struct PackedImageTransferProcessorConfig {
+    PackedCameraConfig camera_config;
+    PackedMcuVersion required_mcu_version;
+    PackedImageTransferProcessorFormat format;
+    INSERT_PADDING_BYTES(3);
+};
+static_assert(sizeof(PackedImageTransferProcessorConfig) == 0x18,
+              "PackedImageTransferProcessorConfig is an invalid size");
+
+// This is nn::irsensor::PackedTeraPluginProcessorConfig
+struct PackedTeraPluginProcessorConfig {
+    PackedMcuVersion required_mcu_version;
+    u8 mode;
+    u8 unknown_1;
+    u8 unknown_2;
+    u8 unknown_3;
+};
+static_assert(sizeof(PackedTeraPluginProcessorConfig) == 0x8,
+              "PackedTeraPluginProcessorConfig is an invalid size");
+
+// This is nn::irsensor::PackedPointingProcessorConfig
+struct PackedPointingProcessorConfig {
+    IrsRect window_of_interest;
+    PackedMcuVersion required_mcu_version;
+};
+static_assert(sizeof(PackedPointingProcessorConfig) == 0xC,
+              "PackedPointingProcessorConfig is an invalid size");
+
+// This is nn::irsensor::PackedFunctionLevel
+struct PackedFunctionLevel {
+    IrSensorFunctionLevel function_level;
+    INSERT_PADDING_BYTES(3);
+};
+static_assert(sizeof(PackedFunctionLevel) == 0x4, "PackedFunctionLevel is an invalid size");
+
+// This is nn::irsensor::PackedImageTransferProcessorExConfig
+struct PackedImageTransferProcessorExConfig {
+    PackedCameraConfig camera_config;
+    PackedMcuVersion required_mcu_version;
+    PackedImageTransferProcessorFormat origin_format;
+    PackedImageTransferProcessorFormat trimming_format;
+    u16 trimming_start_x;
+    u16 trimming_start_y;
+    bool is_external_light_filter_enabled;
+    INSERT_PADDING_BYTES(5);
+};
+static_assert(sizeof(PackedImageTransferProcessorExConfig) == 0x20,
+              "PackedImageTransferProcessorExConfig is an invalid size");
+
+// This is nn::irsensor::PackedIrLedProcessorConfig
+struct PackedIrLedProcessorConfig {
+    PackedMcuVersion required_mcu_version;
+    u8 light_target;
+    INSERT_PADDING_BYTES(3);
+};
+static_assert(sizeof(PackedIrLedProcessorConfig) == 0x8,
+              "PackedIrLedProcessorConfig is an invalid size");
+
+// This is nn::irsensor::HandAnalysisConfig
+struct HandAnalysisConfig {
+    HandAnalysisMode mode;
+};
+static_assert(sizeof(HandAnalysisConfig) == 0x4, "HandAnalysisConfig is an invalid size");
+
+// This is nn::irsensor::detail::ProcessorState contents are different for each processor
+struct ProcessorState {
+    std::array<u8, 0xE20> processor_raw_data{};
+};
+static_assert(sizeof(ProcessorState) == 0xE20, "ProcessorState is an invalid size");
+
+// This is nn::irsensor::detail::DeviceFormat
+struct DeviceFormat {
+    Core::IrSensor::IrCameraStatus camera_status{Core::IrSensor::IrCameraStatus::Unconnected};
+    Core::IrSensor::IrCameraInternalStatus camera_internal_status{
+        Core::IrSensor::IrCameraInternalStatus::Ready};
+    Core::IrSensor::IrSensorMode mode{Core::IrSensor::IrSensorMode::None};
+    ProcessorState state{};
+};
+static_assert(sizeof(DeviceFormat) == 0xE30, "DeviceFormat is an invalid size");
+
+// This is nn::irsensor::ImageTransferProcessorState
+struct ImageTransferProcessorState {
+    u64 sampling_number;
+    Core::IrSensor::CameraAmbientNoiseLevel ambient_noise_level;
+    INSERT_PADDING_BYTES(4);
+};
+static_assert(sizeof(ImageTransferProcessorState) == 0x10,
+              "ImageTransferProcessorState is an invalid size");
+
+} // namespace Core::IrSensor

src/hid_core/irsensor/moment_processor.cpp

@@ -0,0 +1,149 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/irsensor/moment_processor.h"
+
+namespace Service::IRS {
+static constexpr auto format = Core::IrSensor::ImageTransferProcessorFormat::Size40x30;
+static constexpr std::size_t ImageWidth = 40;
+static constexpr std::size_t ImageHeight = 30;
+
+MomentProcessor::MomentProcessor(Core::System& system_, Core::IrSensor::DeviceFormat& device_format,
+                                 std::size_t npad_index)
+    : device(device_format), system{system_} {
+    npad_device = system.HIDCore().GetEmulatedControllerByIndex(npad_index);
+
+    device.mode = Core::IrSensor::IrSensorMode::MomentProcessor;
+    device.camera_status = Core::IrSensor::IrCameraStatus::Unconnected;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Stopped;
+
+    shared_memory = std::construct_at(
+        reinterpret_cast<MomentSharedMemory*>(&device_format.state.processor_raw_data));
+
+    Core::HID::ControllerUpdateCallback engine_callback{
+        .on_change = [this](Core::HID::ControllerTriggerType type) { OnControllerUpdate(type); },
+        .is_npad_service = true,
+    };
+    callback_key = npad_device->SetCallback(engine_callback);
+}
+
+MomentProcessor::~MomentProcessor() {
+    npad_device->DeleteCallback(callback_key);
+};
+
+void MomentProcessor::StartProcessor() {
+    device.camera_status = Core::IrSensor::IrCameraStatus::Available;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Ready;
+}
+
+void MomentProcessor::SuspendProcessor() {}
+
+void MomentProcessor::StopProcessor() {}
+
+void MomentProcessor::OnControllerUpdate(Core::HID::ControllerTriggerType type) {
+    if (type != Core::HID::ControllerTriggerType::IrSensor) {
+        return;
+    }
+
+    next_state = {};
+    const auto& camera_data = npad_device->GetCamera();
+
+    const auto window_width = static_cast<std::size_t>(current_config.window_of_interest.width);
+    const auto window_height = static_cast<std::size_t>(current_config.window_of_interest.height);
+    const auto window_start_x = static_cast<std::size_t>(current_config.window_of_interest.x);
+    const auto window_start_y = static_cast<std::size_t>(current_config.window_of_interest.y);
+
+    const std::size_t block_width = window_width / Columns;
+    const std::size_t block_height = window_height / Rows;
+
+    for (std::size_t row = 0; row < Rows; row++) {
+        for (std::size_t column = 0; column < Columns; column++) {
+            const size_t x_pos = (column * block_width) + window_start_x;
+            const size_t y_pos = (row * block_height) + window_start_y;
+            auto& statistic = next_state.statistic[column + (row * Columns)];
+            statistic = GetStatistic(camera_data.data, x_pos, y_pos, block_width, block_height);
+        }
+    }
+
+    next_state.sampling_number = camera_data.sample;
+    next_state.timestamp = system.CoreTiming().GetGlobalTimeNs().count();
+    next_state.ambient_noise_level = Core::IrSensor::CameraAmbientNoiseLevel::Low;
+    shared_memory->moment_lifo.WriteNextEntry(next_state);
+
+    if (!IsProcessorActive()) {
+        StartProcessor();
+    }
+}
+
+u8 MomentProcessor::GetPixel(const std::vector<u8>& data, std::size_t x, std::size_t y) const {
+    if ((y * ImageWidth) + x >= data.size()) {
+        return 0;
+    }
+    return data[(y * ImageWidth) + x];
+}
+
+MomentProcessor::MomentStatistic MomentProcessor::GetStatistic(const std::vector<u8>& data,
+                                                               std::size_t start_x,
+                                                               std::size_t start_y,
+                                                               std::size_t width,
+                                                               std::size_t height) const {
+    // The actual implementation is always 320x240
+    static constexpr std::size_t RealWidth = 320;
+    static constexpr std::size_t RealHeight = 240;
+    static constexpr std::size_t Threshold = 30;
+    MomentStatistic statistic{};
+    std::size_t active_points{};
+
+    // Sum all data points on the block that meet with the threshold
+    for (std::size_t y = 0; y < width; y++) {
+        for (std::size_t x = 0; x < height; x++) {
+            const size_t x_pos = x + start_x;
+            const size_t y_pos = y + start_y;
+            const auto pixel =
+                GetPixel(data, x_pos * ImageWidth / RealWidth, y_pos * ImageHeight / RealHeight);
+
+            if (pixel < Threshold) {
+                continue;
+            }
+
+            statistic.average_intensity += pixel;
+
+            statistic.centroid.x += static_cast<float>(x_pos);
+            statistic.centroid.y += static_cast<float>(y_pos);
+
+            active_points++;
+        }
+    }
+
+    // Return an empty field if no points were available
+    if (active_points == 0) {
+        return {};
+    }
+
+    // Finally calculate the actual centroid and average intensity
+    statistic.centroid.x /= static_cast<float>(active_points);
+    statistic.centroid.y /= static_cast<float>(active_points);
+    statistic.average_intensity /= static_cast<f32>(width * height);
+
+    return statistic;
+}
+
+void MomentProcessor::SetConfig(Core::IrSensor::PackedMomentProcessorConfig config) {
+    current_config.camera_config.exposure_time = config.camera_config.exposure_time;
+    current_config.camera_config.gain = config.camera_config.gain;
+    current_config.camera_config.is_negative_used = config.camera_config.is_negative_used;
+    current_config.camera_config.light_target =
+        static_cast<Core::IrSensor::CameraLightTarget>(config.camera_config.light_target);
+    current_config.window_of_interest = config.window_of_interest;
+    current_config.preprocess =
+        static_cast<Core::IrSensor::MomentProcessorPreprocess>(config.preprocess);
+    current_config.preprocess_intensity_threshold = config.preprocess_intensity_threshold;
+
+    npad_device->SetCameraFormat(format);
+}
+
+} // namespace Service::IRS

src/hid_core/irsensor/moment_processor.h

@@ -0,0 +1,91 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "hid_core/irsensor/irs_types.h"
+#include "hid_core/irsensor/processor_base.h"
+#include "hid_core/resources/irs_ring_lifo.h"
+
+namespace Core {
+class System;
+}
+
+namespace Core::HID {
+class EmulatedController;
+} // namespace Core::HID
+
+namespace Service::IRS {
+class MomentProcessor final : public ProcessorBase {
+public:
+    explicit MomentProcessor(Core::System& system_, Core::IrSensor::DeviceFormat& device_format,
+                             std::size_t npad_index);
+    ~MomentProcessor() override;
+
+    // Called when the processor is initialized
+    void StartProcessor() override;
+
+    // Called when the processor is suspended
+    void SuspendProcessor() override;
+
+    // Called when the processor is stopped
+    void StopProcessor() override;
+
+    // Sets config parameters of the camera
+    void SetConfig(Core::IrSensor::PackedMomentProcessorConfig config);
+
+private:
+    static constexpr std::size_t Columns = 8;
+    static constexpr std::size_t Rows = 6;
+
+    // This is nn::irsensor::MomentProcessorConfig
+    struct MomentProcessorConfig {
+        Core::IrSensor::CameraConfig camera_config;
+        Core::IrSensor::IrsRect window_of_interest;
+        Core::IrSensor::MomentProcessorPreprocess preprocess;
+        u32 preprocess_intensity_threshold;
+    };
+    static_assert(sizeof(MomentProcessorConfig) == 0x28,
+                  "MomentProcessorConfig is an invalid size");
+
+    // This is nn::irsensor::MomentStatistic
+    struct MomentStatistic {
+        f32 average_intensity;
+        Core::IrSensor::IrsCentroid centroid;
+    };
+    static_assert(sizeof(MomentStatistic) == 0xC, "MomentStatistic is an invalid size");
+
+    // This is nn::irsensor::MomentProcessorState
+    struct MomentProcessorState {
+        s64 sampling_number;
+        u64 timestamp;
+        Core::IrSensor::CameraAmbientNoiseLevel ambient_noise_level;
+        INSERT_PADDING_BYTES(4);
+        std::array<MomentStatistic, Columns * Rows> statistic;
+    };
+    static_assert(sizeof(MomentProcessorState) == 0x258, "MomentProcessorState is an invalid size");
+
+    struct MomentSharedMemory {
+        Service::IRS::Lifo<MomentProcessorState, 6> moment_lifo;
+    };
+    static_assert(sizeof(MomentSharedMemory) == 0xE20, "MomentSharedMemory is an invalid size");
+
+    void OnControllerUpdate(Core::HID::ControllerTriggerType type);
+    u8 GetPixel(const std::vector<u8>& data, std::size_t x, std::size_t y) const;
+    MomentStatistic GetStatistic(const std::vector<u8>& data, std::size_t start_x,
+                                 std::size_t start_y, std::size_t width, std::size_t height) const;
+
+    MomentSharedMemory* shared_memory = nullptr;
+    MomentProcessorState next_state{};
+
+    MomentProcessorConfig current_config{};
+    Core::IrSensor::DeviceFormat& device;
+    Core::HID::EmulatedController* npad_device;
+    int callback_key{};
+
+    Core::System& system;
+};
+
+} // namespace Service::IRS

src/hid_core/irsensor/pointing_processor.cpp

@@ -0,0 +1,26 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/irsensor/pointing_processor.h"
+
+namespace Service::IRS {
+PointingProcessor::PointingProcessor(Core::IrSensor::DeviceFormat& device_format)
+    : device(device_format) {
+    device.mode = Core::IrSensor::IrSensorMode::PointingProcessorMarker;
+    device.camera_status = Core::IrSensor::IrCameraStatus::Unconnected;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Stopped;
+}
+
+PointingProcessor::~PointingProcessor() = default;
+
+void PointingProcessor::StartProcessor() {}
+
+void PointingProcessor::SuspendProcessor() {}
+
+void PointingProcessor::StopProcessor() {}
+
+void PointingProcessor::SetConfig(Core::IrSensor::PackedPointingProcessorConfig config) {
+    current_config.window_of_interest = config.window_of_interest;
+}
+
+} // namespace Service::IRS

src/hid_core/irsensor/pointing_processor.h

@@ -0,0 +1,61 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "hid_core/irsensor/irs_types.h"
+#include "hid_core/irsensor/processor_base.h"
+
+namespace Service::IRS {
+class PointingProcessor final : public ProcessorBase {
+public:
+    explicit PointingProcessor(Core::IrSensor::DeviceFormat& device_format);
+    ~PointingProcessor() override;
+
+    // Called when the processor is initialized
+    void StartProcessor() override;
+
+    // Called when the processor is suspended
+    void SuspendProcessor() override;
+
+    // Called when the processor is stopped
+    void StopProcessor() override;
+
+    // Sets config parameters of the camera
+    void SetConfig(Core::IrSensor::PackedPointingProcessorConfig config);
+
+private:
+    // This is nn::irsensor::PointingProcessorConfig
+    struct PointingProcessorConfig {
+        Core::IrSensor::IrsRect window_of_interest;
+    };
+    static_assert(sizeof(PointingProcessorConfig) == 0x8,
+                  "PointingProcessorConfig is an invalid size");
+
+    struct PointingProcessorMarkerData {
+        u8 pointing_status;
+        INSERT_PADDING_BYTES(3);
+        u32 unknown;
+        float unknown_float1;
+        float position_x;
+        float position_y;
+        float unknown_float2;
+        Core::IrSensor::IrsRect window_of_interest;
+    };
+    static_assert(sizeof(PointingProcessorMarkerData) == 0x20,
+                  "PointingProcessorMarkerData is an invalid size");
+
+    struct PointingProcessorMarkerState {
+        s64 sampling_number;
+        u64 timestamp;
+        std::array<PointingProcessorMarkerData, 0x3> data;
+    };
+    static_assert(sizeof(PointingProcessorMarkerState) == 0x70,
+                  "PointingProcessorMarkerState is an invalid size");
+
+    PointingProcessorConfig current_config{};
+    Core::IrSensor::DeviceFormat& device;
+};
+
+} // namespace Service::IRS

src/hid_core/irsensor/processor_base.cpp

@@ -0,0 +1,67 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/irsensor/processor_base.h"
+
+namespace Service::IRS {
+
+ProcessorBase::ProcessorBase() {}
+ProcessorBase::~ProcessorBase() = default;
+
+bool ProcessorBase::IsProcessorActive() const {
+    return is_active;
+}
+
+std::size_t ProcessorBase::GetDataSize(Core::IrSensor::ImageTransferProcessorFormat format) const {
+    switch (format) {
+    case Core::IrSensor::ImageTransferProcessorFormat::Size320x240:
+        return 320 * 240;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size160x120:
+        return 160 * 120;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size80x60:
+        return 80 * 60;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size40x30:
+        return 40 * 30;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size20x15:
+        return 20 * 15;
+    default:
+        return 0;
+    }
+}
+
+std::size_t ProcessorBase::GetDataWidth(Core::IrSensor::ImageTransferProcessorFormat format) const {
+    switch (format) {
+    case Core::IrSensor::ImageTransferProcessorFormat::Size320x240:
+        return 320;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size160x120:
+        return 160;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size80x60:
+        return 80;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size40x30:
+        return 40;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size20x15:
+        return 20;
+    default:
+        return 0;
+    }
+}
+
+std::size_t ProcessorBase::GetDataHeight(
+    Core::IrSensor::ImageTransferProcessorFormat format) const {
+    switch (format) {
+    case Core::IrSensor::ImageTransferProcessorFormat::Size320x240:
+        return 240;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size160x120:
+        return 120;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size80x60:
+        return 60;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size40x30:
+        return 30;
+    case Core::IrSensor::ImageTransferProcessorFormat::Size20x15:
+        return 15;
+    default:
+        return 0;
+    }
+}
+
+} // namespace Service::IRS

src/hid_core/irsensor/processor_base.h

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "hid_core/irsensor/irs_types.h"
+
+namespace Service::IRS {
+class ProcessorBase {
+public:
+    explicit ProcessorBase();
+    virtual ~ProcessorBase();
+
+    virtual void StartProcessor() = 0;
+    virtual void SuspendProcessor() = 0;
+    virtual void StopProcessor() = 0;
+
+    bool IsProcessorActive() const;
+
+protected:
+    /// Returns the number of bytes the image uses
+    std::size_t GetDataSize(Core::IrSensor::ImageTransferProcessorFormat format) const;
+
+    /// Returns the width of the image
+    std::size_t GetDataWidth(Core::IrSensor::ImageTransferProcessorFormat format) const;
+
+    /// Returns the height of the image
+    std::size_t GetDataHeight(Core::IrSensor::ImageTransferProcessorFormat format) const;
+
+    bool is_active{false};
+};
+} // namespace Service::IRS

src/hid_core/irsensor/tera_plugin_processor.cpp

@@ -0,0 +1,29 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/irsensor/tera_plugin_processor.h"
+
+namespace Service::IRS {
+TeraPluginProcessor::TeraPluginProcessor(Core::IrSensor::DeviceFormat& device_format)
+    : device(device_format) {
+    device.mode = Core::IrSensor::IrSensorMode::TeraPluginProcessor;
+    device.camera_status = Core::IrSensor::IrCameraStatus::Unconnected;
+    device.camera_internal_status = Core::IrSensor::IrCameraInternalStatus::Stopped;
+}
+
+TeraPluginProcessor::~TeraPluginProcessor() = default;
+
+void TeraPluginProcessor::StartProcessor() {}
+
+void TeraPluginProcessor::SuspendProcessor() {}
+
+void TeraPluginProcessor::StopProcessor() {}
+
+void TeraPluginProcessor::SetConfig(Core::IrSensor::PackedTeraPluginProcessorConfig config) {
+    current_config.mode = config.mode;
+    current_config.unknown_1 = config.unknown_1;
+    current_config.unknown_2 = config.unknown_2;
+    current_config.unknown_3 = config.unknown_3;
+}
+
+} // namespace Service::IRS

src/hid_core/irsensor/tera_plugin_processor.h

@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "hid_core/irsensor/irs_types.h"
+#include "hid_core/irsensor/processor_base.h"
+
+namespace Service::IRS {
+class TeraPluginProcessor final : public ProcessorBase {
+public:
+    explicit TeraPluginProcessor(Core::IrSensor::DeviceFormat& device_format);
+    ~TeraPluginProcessor() override;
+
+    // Called when the processor is initialized
+    void StartProcessor() override;
+
+    // Called when the processor is suspended
+    void SuspendProcessor() override;
+
+    // Called when the processor is stopped
+    void StopProcessor() override;
+
+    // Sets config parameters of the camera
+    void SetConfig(Core::IrSensor::PackedTeraPluginProcessorConfig config);
+
+private:
+    // This is nn::irsensor::TeraPluginProcessorConfig
+    struct TeraPluginProcessorConfig {
+        u8 mode;
+        u8 unknown_1;
+        u8 unknown_2;
+        u8 unknown_3;
+    };
+    static_assert(sizeof(TeraPluginProcessorConfig) == 0x4,
+                  "TeraPluginProcessorConfig is an invalid size");
+
+    struct TeraPluginProcessorState {
+        s64 sampling_number;
+        u64 timestamp;
+        Core::IrSensor::CameraAmbientNoiseLevel ambient_noise_level;
+        std::array<u8, 0x12c> data;
+    };
+    static_assert(sizeof(TeraPluginProcessorState) == 0x140,
+                  "TeraPluginProcessorState is an invalid size");
+
+    TeraPluginProcessorConfig current_config{};
+    Core::IrSensor::DeviceFormat& device;
+};
+
+} // namespace Service::IRS

src/hid_core/precompiled_headers.h

@@ -0,0 +1,6 @@
+// SPDX-FileCopyrightText: 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_precompiled_headers.h"

src/hid_core/resource_manager.cpp

@@ -0,0 +1,503 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "common/logging/log.h"
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/set/system_settings_server.h"
+#include "core/hle/service/sm/sm.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hid_util.h"
+#include "hid_core/resource_manager.h"
+
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/debug_pad/debug_pad.h"
+#include "hid_core/resources/digitizer/digitizer.h"
+#include "hid_core/resources/hid_firmware_settings.h"
+#include "hid_core/resources/keyboard/keyboard.h"
+#include "hid_core/resources/mouse/debug_mouse.h"
+#include "hid_core/resources/mouse/mouse.h"
+#include "hid_core/resources/npad/npad.h"
+#include "hid_core/resources/palma/palma.h"
+#include "hid_core/resources/shared_memory_format.h"
+#include "hid_core/resources/six_axis/console_six_axis.h"
+#include "hid_core/resources/six_axis/seven_six_axis.h"
+#include "hid_core/resources/six_axis/six_axis.h"
+#include "hid_core/resources/system_buttons/capture_button.h"
+#include "hid_core/resources/system_buttons/home_button.h"
+#include "hid_core/resources/system_buttons/sleep_button.h"
+#include "hid_core/resources/touch_screen/gesture.h"
+#include "hid_core/resources/touch_screen/touch_screen.h"
+#include "hid_core/resources/touch_screen/touch_screen_driver.h"
+#include "hid_core/resources/touch_screen/touch_screen_resource.h"
+#include "hid_core/resources/unique_pad/unique_pad.h"
+#include "hid_core/resources/vibration/gc_vibration_device.h"
+#include "hid_core/resources/vibration/n64_vibration_device.h"
+#include "hid_core/resources/vibration/vibration_base.h"
+#include "hid_core/resources/vibration/vibration_device.h"
+
+namespace Service::HID {
+
+// Updating period for each HID device.
+// Period time is obtained by measuring the number of samples in a second on HW using a homebrew
+// Correct npad_update_ns is 4ms this is overclocked to lower input lag
+constexpr auto npad_update_ns = std::chrono::nanoseconds{1 * 1000 * 1000};    // (1ms, 1000Hz)
+constexpr auto default_update_ns = std::chrono::nanoseconds{4 * 1000 * 1000}; // (4ms, 1000Hz)
+constexpr auto mouse_keyboard_update_ns = std::chrono::nanoseconds{8 * 1000 * 1000}; // (8ms, 125Hz)
+constexpr auto motion_update_ns = std::chrono::nanoseconds{5 * 1000 * 1000};         // (5ms, 200Hz)
+
+ResourceManager::ResourceManager(Core::System& system_,
+                                 std::shared_ptr<HidFirmwareSettings> settings)
+    : firmware_settings{settings}, system{system_}, service_context{system_, "hid"} {
+    applet_resource = std::make_shared<AppletResource>(system);
+
+    // Register update callbacks
+    npad_update_event = Core::Timing::CreateEvent("HID::UpdatePadCallback",
+                                                  [this](s64 time, std::chrono::nanoseconds ns_late)
+                                                      -> std::optional<std::chrono::nanoseconds> {
+                                                      UpdateNpad(ns_late);
+                                                      return std::nullopt;
+                                                  });
+    default_update_event = Core::Timing::CreateEvent(
+        "HID::UpdateDefaultCallback",
+        [this](s64 time,
+               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            UpdateControllers(ns_late);
+            return std::nullopt;
+        });
+    mouse_keyboard_update_event = Core::Timing::CreateEvent(
+        "HID::UpdateMouseKeyboardCallback",
+        [this](s64 time,
+               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            UpdateMouseKeyboard(ns_late);
+            return std::nullopt;
+        });
+    motion_update_event = Core::Timing::CreateEvent(
+        "HID::UpdateMotionCallback",
+        [this](s64 time,
+               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            UpdateMotion(ns_late);
+            return std::nullopt;
+        });
+}
+
+ResourceManager::~ResourceManager() {
+    system.CoreTiming().UnscheduleEvent(npad_update_event);
+    system.CoreTiming().UnscheduleEvent(default_update_event);
+    system.CoreTiming().UnscheduleEvent(mouse_keyboard_update_event);
+    system.CoreTiming().UnscheduleEvent(motion_update_event);
+    system.CoreTiming().UnscheduleEvent(touch_update_event);
+    input_event->Finalize();
+};
+
+void ResourceManager::Initialize() {
+    if (is_initialized) {
+        return;
+    }
+
+    system.HIDCore().ReloadInputDevices();
+
+    input_event = service_context.CreateEvent("ResourceManager:InputEvent");
+
+    InitializeHandheldConfig();
+    InitializeHidCommonSampler();
+    InitializeTouchScreenSampler();
+    InitializeConsoleSixAxisSampler();
+    InitializeAHidSampler();
+
+    is_initialized = true;
+}
+
+std::shared_ptr<AppletResource> ResourceManager::GetAppletResource() const {
+    return applet_resource;
+}
+
+std::shared_ptr<CaptureButton> ResourceManager::GetCaptureButton() const {
+    return capture_button;
+}
+
+std::shared_ptr<ConsoleSixAxis> ResourceManager::GetConsoleSixAxis() const {
+    return console_six_axis;
+}
+
+std::shared_ptr<DebugMouse> ResourceManager::GetDebugMouse() const {
+    return debug_mouse;
+}
+
+std::shared_ptr<DebugPad> ResourceManager::GetDebugPad() const {
+    return debug_pad;
+}
+
+std::shared_ptr<Digitizer> ResourceManager::GetDigitizer() const {
+    return digitizer;
+}
+
+std::shared_ptr<Gesture> ResourceManager::GetGesture() const {
+    return gesture;
+}
+
+std::shared_ptr<HomeButton> ResourceManager::GetHomeButton() const {
+    return home_button;
+}
+
+std::shared_ptr<Keyboard> ResourceManager::GetKeyboard() const {
+    return keyboard;
+}
+
+std::shared_ptr<Mouse> ResourceManager::GetMouse() const {
+    return mouse;
+}
+
+std::shared_ptr<NPad> ResourceManager::GetNpad() const {
+    return npad;
+}
+
+std::shared_ptr<Palma> ResourceManager::GetPalma() const {
+    return palma;
+}
+
+std::shared_ptr<SevenSixAxis> ResourceManager::GetSevenSixAxis() const {
+    return seven_six_axis;
+}
+
+std::shared_ptr<SixAxis> ResourceManager::GetSixAxis() const {
+    return six_axis;
+}
+
+std::shared_ptr<SleepButton> ResourceManager::GetSleepButton() const {
+    return sleep_button;
+}
+
+std::shared_ptr<TouchScreen> ResourceManager::GetTouchScreen() const {
+    return touch_screen;
+}
+
+std::shared_ptr<UniquePad> ResourceManager::GetUniquePad() const {
+    return unique_pad;
+}
+
+Result ResourceManager::CreateAppletResource(u64 aruid) {
+    if (aruid == SystemAruid) {
+        const auto result = RegisterCoreAppletResource();
+        if (result.IsError()) {
+            return result;
+        }
+        return GetNpad()->ActivateNpadResource();
+    }
+
+    const auto result = CreateAppletResourceImpl(aruid);
+    if (result.IsError()) {
+        return result;
+    }
+
+    // Homebrew doesn't try to activate some controllers, so we activate them by default
+    npad->Activate();
+    six_axis->Activate();
+    touch_screen->Activate();
+    gesture->Activate();
+
+    return GetNpad()->ActivateNpadResource(aruid);
+}
+
+Result ResourceManager::CreateAppletResourceImpl(u64 aruid) {
+    std::scoped_lock lock{shared_mutex};
+    return applet_resource->CreateAppletResource(aruid);
+}
+
+void ResourceManager::InitializeHandheldConfig() {
+    handheld_config = std::make_shared<HandheldConfig>();
+    handheld_config->is_handheld_hid_enabled = true;
+    handheld_config->is_joycon_rail_enabled = true;
+    handheld_config->is_force_handheld_style_vibration = false;
+    handheld_config->is_force_handheld = false;
+    if (firmware_settings->IsHandheldForced()) {
+        handheld_config->is_joycon_rail_enabled = false;
+    }
+}
+
+void ResourceManager::InitializeHidCommonSampler() {
+    debug_pad = std::make_shared<DebugPad>(system.HIDCore());
+    mouse = std::make_shared<Mouse>(system.HIDCore());
+    debug_mouse = std::make_shared<DebugMouse>(system.HIDCore());
+    keyboard = std::make_shared<Keyboard>(system.HIDCore());
+    unique_pad = std::make_shared<UniquePad>(system.HIDCore());
+    npad = std::make_shared<NPad>(system.HIDCore(), service_context);
+    home_button = std::make_shared<HomeButton>(system.HIDCore());
+    sleep_button = std::make_shared<SleepButton>(system.HIDCore());
+    capture_button = std::make_shared<CaptureButton>(system.HIDCore());
+    digitizer = std::make_shared<Digitizer>(system.HIDCore());
+
+    palma = std::make_shared<Palma>(system.HIDCore(), service_context);
+    six_axis = std::make_shared<SixAxis>(system.HIDCore(), npad);
+
+    debug_pad->SetAppletResource(applet_resource, &shared_mutex);
+    digitizer->SetAppletResource(applet_resource, &shared_mutex);
+    unique_pad->SetAppletResource(applet_resource, &shared_mutex);
+    keyboard->SetAppletResource(applet_resource, &shared_mutex);
+
+    const auto settings =
+        system.ServiceManager().GetService<Service::Set::ISystemSettingsServer>("set:sys", true);
+    npad->SetNpadExternals(applet_resource, &shared_mutex, handheld_config, input_event,
+                           &input_mutex, settings);
+
+    six_axis->SetAppletResource(applet_resource, &shared_mutex);
+    mouse->SetAppletResource(applet_resource, &shared_mutex);
+    debug_mouse->SetAppletResource(applet_resource, &shared_mutex);
+    home_button->SetAppletResource(applet_resource, &shared_mutex);
+    sleep_button->SetAppletResource(applet_resource, &shared_mutex);
+    capture_button->SetAppletResource(applet_resource, &shared_mutex);
+
+    system.CoreTiming().ScheduleLoopingEvent(npad_update_ns, npad_update_ns, npad_update_event);
+    system.CoreTiming().ScheduleLoopingEvent(default_update_ns, default_update_ns,
+                                             default_update_event);
+    system.CoreTiming().ScheduleLoopingEvent(mouse_keyboard_update_ns, mouse_keyboard_update_ns,
+                                             mouse_keyboard_update_event);
+    system.CoreTiming().ScheduleLoopingEvent(motion_update_ns, motion_update_ns,
+                                             motion_update_event);
+}
+
+void ResourceManager::InitializeTouchScreenSampler() {
+    // This is nn.hid.TouchScreenSampler
+    touch_resource = std::make_shared<TouchResource>(system);
+    touch_driver = std::make_shared<TouchDriver>(system.HIDCore());
+    touch_screen = std::make_shared<TouchScreen>(touch_resource);
+    gesture = std::make_shared<Gesture>(touch_resource);
+
+    touch_update_event = Core::Timing::CreateEvent(
+        "HID::TouchUpdateCallback",
+        [this](s64 time,
+               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            touch_resource->OnTouchUpdate(time);
+            return std::nullopt;
+        });
+
+    touch_resource->SetTouchDriver(touch_driver);
+    touch_resource->SetAppletResource(applet_resource, &shared_mutex);
+    touch_resource->SetInputEvent(input_event, &input_mutex);
+    touch_resource->SetHandheldConfig(handheld_config);
+    touch_resource->SetTimerEvent(touch_update_event);
+}
+
+void ResourceManager::InitializeConsoleSixAxisSampler() {
+    console_six_axis = std::make_shared<ConsoleSixAxis>(system.HIDCore());
+    seven_six_axis = std::make_shared<SevenSixAxis>(system);
+
+    console_six_axis->SetAppletResource(applet_resource, &shared_mutex);
+}
+
+void ResourceManager::InitializeAHidSampler() {
+    // TODO
+}
+
+Result ResourceManager::RegisterCoreAppletResource() {
+    std::scoped_lock lock{shared_mutex};
+    return applet_resource->RegisterCoreAppletResource();
+}
+
+Result ResourceManager::UnregisterCoreAppletResource() {
+    std::scoped_lock lock{shared_mutex};
+    return applet_resource->UnregisterCoreAppletResource();
+}
+
+Result ResourceManager::RegisterAppletResourceUserId(u64 aruid, bool bool_value) {
+    std::scoped_lock lock{shared_mutex};
+    auto result = applet_resource->RegisterAppletResourceUserId(aruid, bool_value);
+    if (result.IsSuccess()) {
+        result = npad->RegisterAppletResourceUserId(aruid);
+    }
+    return result;
+}
+
+void ResourceManager::UnregisterAppletResourceUserId(u64 aruid) {
+    std::scoped_lock lock{shared_mutex};
+    applet_resource->UnregisterAppletResourceUserId(aruid);
+    npad->UnregisterAppletResourceUserId(aruid);
+    // palma->UnregisterAppletResourceUserId(aruid);
+}
+
+Result ResourceManager::GetSharedMemoryHandle(Kernel::KSharedMemory** out_handle, u64 aruid) {
+    std::scoped_lock lock{shared_mutex};
+    return applet_resource->GetSharedMemoryHandle(out_handle, aruid);
+}
+
+void ResourceManager::FreeAppletResourceId(u64 aruid) {
+    std::scoped_lock lock{shared_mutex};
+    applet_resource->FreeAppletResourceId(aruid);
+    npad->FreeAppletResourceId(aruid);
+}
+
+void ResourceManager::EnableInput(u64 aruid, bool is_enabled) {
+    std::scoped_lock lock{shared_mutex};
+    applet_resource->EnableInput(aruid, is_enabled);
+}
+
+void ResourceManager::EnableSixAxisSensor(u64 aruid, bool is_enabled) {
+    std::scoped_lock lock{shared_mutex};
+    applet_resource->EnableSixAxisSensor(aruid, is_enabled);
+}
+
+void ResourceManager::EnablePadInput(u64 aruid, bool is_enabled) {
+    std::scoped_lock lock{shared_mutex};
+    applet_resource->EnablePadInput(aruid, is_enabled);
+}
+
+void ResourceManager::EnableTouchScreen(u64 aruid, bool is_enabled) {
+    std::scoped_lock lock{shared_mutex};
+    applet_resource->EnableTouchScreen(aruid, is_enabled);
+}
+
+NpadVibrationBase* ResourceManager::GetVibrationDevice(
+    const Core::HID::VibrationDeviceHandle& handle) {
+    return npad->GetVibrationDevice(handle);
+}
+
+NpadN64VibrationDevice* ResourceManager::GetN64VibrationDevice(
+    const Core::HID::VibrationDeviceHandle& handle) {
+    return npad->GetN64VibrationDevice(handle);
+}
+
+NpadVibrationDevice* ResourceManager::GetNSVibrationDevice(
+    const Core::HID::VibrationDeviceHandle& handle) {
+    return npad->GetNSVibrationDevice(handle);
+}
+
+NpadGcVibrationDevice* ResourceManager::GetGcVibrationDevice(
+    const Core::HID::VibrationDeviceHandle& handle) {
+    return npad->GetGcVibrationDevice(handle);
+}
+
+Result ResourceManager::SetAruidValidForVibration(u64 aruid, bool is_enabled) {
+    std::scoped_lock lock{shared_mutex};
+    const bool has_changed = applet_resource->SetAruidValidForVibration(aruid, is_enabled);
+
+    if (has_changed) {
+        auto devices = npad->GetAllVibrationDevices();
+        for ([[maybe_unused]] auto* device : devices) {
+            // TODO
+        }
+    }
+
+    auto* vibration_handler = npad->GetVibrationHandler();
+    if (aruid != vibration_handler->GetSessionAruid()) {
+        vibration_handler->EndPermitVibrationSession();
+    }
+
+    return ResultSuccess;
+}
+
+void ResourceManager::SetForceHandheldStyleVibration(bool is_forced) {
+    handheld_config->is_force_handheld_style_vibration = is_forced;
+}
+
+Result ResourceManager::IsVibrationAruidActive(u64 aruid, bool& is_active) const {
+    std::scoped_lock lock{shared_mutex};
+    is_active = applet_resource->IsVibrationAruidActive(aruid);
+    return ResultSuccess;
+}
+
+Result ResourceManager::GetVibrationDeviceInfo(Core::HID::VibrationDeviceInfo& device_info,
+                                               const Core::HID::VibrationDeviceHandle& handle) {
+    bool check_device_index = false;
+
+    const Result is_valid = IsVibrationHandleValid(handle);
+    if (is_valid.IsError()) {
+        return is_valid;
+    }
+
+    switch (handle.npad_type) {
+    case Core::HID::NpadStyleIndex::Fullkey:
+    case Core::HID::NpadStyleIndex::Handheld:
+    case Core::HID::NpadStyleIndex::JoyconDual:
+    case Core::HID::NpadStyleIndex::JoyconLeft:
+    case Core::HID::NpadStyleIndex::JoyconRight:
+        device_info.type = Core::HID::VibrationDeviceType::LinearResonantActuator;
+        check_device_index = true;
+        break;
+    case Core::HID::NpadStyleIndex::GameCube:
+        device_info.type = Core::HID::VibrationDeviceType::GcErm;
+        break;
+    case Core::HID::NpadStyleIndex::N64:
+        device_info.type = Core::HID::VibrationDeviceType::N64;
+        break;
+    default:
+        device_info.type = Core::HID::VibrationDeviceType::Unknown;
+        break;
+    }
+
+    device_info.position = Core::HID::VibrationDevicePosition::None;
+    if (check_device_index) {
+        switch (handle.device_index) {
+        case Core::HID::DeviceIndex::Left:
+            device_info.position = Core::HID::VibrationDevicePosition::Left;
+            break;
+        case Core::HID::DeviceIndex::Right:
+            device_info.position = Core::HID::VibrationDevicePosition::Right;
+            break;
+        case Core::HID::DeviceIndex::None:
+        default:
+            ASSERT_MSG(false, "DeviceIndex should never be None!");
+            break;
+        }
+    }
+    return ResultSuccess;
+}
+
+Result ResourceManager::SendVibrationValue(u64 aruid,
+                                           const Core::HID::VibrationDeviceHandle& handle,
+                                           const Core::HID::VibrationValue& value) {
+    bool has_active_aruid{};
+    NpadVibrationDevice* device{nullptr};
+    Result result = IsVibrationAruidActive(aruid, has_active_aruid);
+
+    if (result.IsSuccess() && has_active_aruid) {
+        result = IsVibrationHandleValid(handle);
+    }
+    if (result.IsSuccess() && has_active_aruid) {
+        device = GetNSVibrationDevice(handle);
+    }
+    if (device != nullptr) {
+        // Prevent sending vibrations to an inactive vibration handle
+        if (!device->IsActive()) {
+            return ResultSuccess;
+        }
+        result = device->SendVibrationValue(value);
+    }
+    return result;
+}
+
+Result ResourceManager::GetTouchScreenFirmwareVersion(Core::HID::FirmwareVersion& firmware) const {
+    return ResultSuccess;
+}
+
+void ResourceManager::UpdateControllers(std::chrono::nanoseconds ns_late) {
+    auto& core_timing = system.CoreTiming();
+    debug_pad->OnUpdate(core_timing);
+    digitizer->OnUpdate(core_timing);
+    unique_pad->OnUpdate(core_timing);
+    palma->OnUpdate(core_timing);
+    home_button->OnUpdate(core_timing);
+    sleep_button->OnUpdate(core_timing);
+    capture_button->OnUpdate(core_timing);
+}
+
+void ResourceManager::UpdateNpad(std::chrono::nanoseconds ns_late) {
+    auto& core_timing = system.CoreTiming();
+    npad->OnUpdate(core_timing);
+}
+
+void ResourceManager::UpdateMouseKeyboard(std::chrono::nanoseconds ns_late) {
+    auto& core_timing = system.CoreTiming();
+    mouse->OnUpdate(core_timing);
+    debug_mouse->OnUpdate(core_timing);
+    keyboard->OnUpdate(core_timing);
+}
+
+void ResourceManager::UpdateMotion(std::chrono::nanoseconds ns_late) {
+    auto& core_timing = system.CoreTiming();
+    six_axis->OnUpdate(core_timing);
+    seven_six_axis->OnUpdate(core_timing);
+    console_six_axis->OnUpdate(core_timing);
+}
+
+} // namespace Service::HID

src/hid_core/resource_manager.h

@@ -0,0 +1,177 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Core::HID {
+struct FirmwareVersion;
+struct VibrationDeviceHandle;
+struct VibrationValue;
+struct VibrationDeviceInfo;
+} // namespace Core::HID
+
+namespace Core::Timing {
+struct EventType;
+}
+
+namespace Kernel {
+class KEvent;
+class KSharedMemory;
+} // namespace Kernel
+
+namespace Service::HID {
+class AppletResource;
+class CaptureButton;
+class Controller_Stubbed;
+class ConsoleSixAxis;
+class DebugMouse;
+class DebugPad;
+class Digitizer;
+class Gesture;
+class HidFirmwareSettings;
+class HomeButton;
+class Keyboard;
+class Mouse;
+class NPad;
+class Palma;
+class SevenSixAxis;
+class SixAxis;
+class SleepButton;
+class TouchScreen;
+class TouchDriver;
+class TouchResource;
+class UniquePad;
+class NpadVibrationBase;
+class NpadN64VibrationDevice;
+class NpadGcVibrationDevice;
+class NpadVibrationDevice;
+struct HandheldConfig;
+
+class ResourceManager {
+
+public:
+    explicit ResourceManager(Core::System& system_, std::shared_ptr<HidFirmwareSettings> settings);
+    ~ResourceManager();
+
+    void Initialize();
+
+    std::shared_ptr<AppletResource> GetAppletResource() const;
+    std::shared_ptr<CaptureButton> GetCaptureButton() const;
+    std::shared_ptr<ConsoleSixAxis> GetConsoleSixAxis() const;
+    std::shared_ptr<DebugMouse> GetDebugMouse() const;
+    std::shared_ptr<DebugPad> GetDebugPad() const;
+    std::shared_ptr<Digitizer> GetDigitizer() const;
+    std::shared_ptr<Gesture> GetGesture() const;
+    std::shared_ptr<HomeButton> GetHomeButton() const;
+    std::shared_ptr<Keyboard> GetKeyboard() const;
+    std::shared_ptr<Mouse> GetMouse() const;
+    std::shared_ptr<NPad> GetNpad() const;
+    std::shared_ptr<Palma> GetPalma() const;
+    std::shared_ptr<SevenSixAxis> GetSevenSixAxis() const;
+    std::shared_ptr<SixAxis> GetSixAxis() const;
+    std::shared_ptr<SleepButton> GetSleepButton() const;
+    std::shared_ptr<TouchScreen> GetTouchScreen() const;
+    std::shared_ptr<UniquePad> GetUniquePad() const;
+
+    Result CreateAppletResource(u64 aruid);
+
+    Result RegisterCoreAppletResource();
+    Result UnregisterCoreAppletResource();
+    Result RegisterAppletResourceUserId(u64 aruid, bool bool_value);
+    void UnregisterAppletResourceUserId(u64 aruid);
+
+    Result GetSharedMemoryHandle(Kernel::KSharedMemory** out_handle, u64 aruid);
+    void FreeAppletResourceId(u64 aruid);
+
+    void EnableInput(u64 aruid, bool is_enabled);
+    void EnableSixAxisSensor(u64 aruid, bool is_enabled);
+    void EnablePadInput(u64 aruid, bool is_enabled);
+    void EnableTouchScreen(u64 aruid, bool is_enabled);
+
+    NpadVibrationBase* GetVibrationDevice(const Core::HID::VibrationDeviceHandle& handle);
+    NpadN64VibrationDevice* GetN64VibrationDevice(const Core::HID::VibrationDeviceHandle& handle);
+    NpadVibrationDevice* GetNSVibrationDevice(const Core::HID::VibrationDeviceHandle& handle);
+    NpadGcVibrationDevice* GetGcVibrationDevice(const Core::HID::VibrationDeviceHandle& handle);
+    Result SetAruidValidForVibration(u64 aruid, bool is_enabled);
+    void SetForceHandheldStyleVibration(bool is_forced);
+    Result IsVibrationAruidActive(u64 aruid, bool& is_active) const;
+    Result GetVibrationDeviceInfo(Core::HID::VibrationDeviceInfo& device_info,
+                                  const Core::HID::VibrationDeviceHandle& handle);
+    Result SendVibrationValue(u64 aruid, const Core::HID::VibrationDeviceHandle& handle,
+                              const Core::HID::VibrationValue& value);
+
+    Result GetTouchScreenFirmwareVersion(Core::HID::FirmwareVersion& firmware) const;
+
+    void UpdateControllers(std::chrono::nanoseconds ns_late);
+    void UpdateNpad(std::chrono::nanoseconds ns_late);
+    void UpdateMouseKeyboard(std::chrono::nanoseconds ns_late);
+    void UpdateMotion(std::chrono::nanoseconds ns_late);
+
+private:
+    Result CreateAppletResourceImpl(u64 aruid);
+    void InitializeHandheldConfig();
+    void InitializeHidCommonSampler();
+    void InitializeTouchScreenSampler();
+    void InitializeConsoleSixAxisSampler();
+    void InitializeAHidSampler();
+
+    bool is_initialized{false};
+
+    mutable std::recursive_mutex shared_mutex;
+    std::shared_ptr<AppletResource> applet_resource{nullptr};
+
+    mutable std::mutex input_mutex;
+    Kernel::KEvent* input_event{nullptr};
+
+    std::shared_ptr<HandheldConfig> handheld_config{nullptr};
+    std::shared_ptr<HidFirmwareSettings> firmware_settings{nullptr};
+
+    std::shared_ptr<CaptureButton> capture_button{nullptr};
+    std::shared_ptr<ConsoleSixAxis> console_six_axis{nullptr};
+    std::shared_ptr<DebugMouse> debug_mouse{nullptr};
+    std::shared_ptr<DebugPad> debug_pad{nullptr};
+    std::shared_ptr<Digitizer> digitizer{nullptr};
+    std::shared_ptr<HomeButton> home_button{nullptr};
+    std::shared_ptr<Keyboard> keyboard{nullptr};
+    std::shared_ptr<Mouse> mouse{nullptr};
+    std::shared_ptr<NPad> npad{nullptr};
+    std::shared_ptr<Palma> palma{nullptr};
+    std::shared_ptr<SevenSixAxis> seven_six_axis{nullptr};
+    std::shared_ptr<SixAxis> six_axis{nullptr};
+    std::shared_ptr<SleepButton> sleep_button{nullptr};
+    std::shared_ptr<UniquePad> unique_pad{nullptr};
+    std::shared_ptr<Core::Timing::EventType> npad_update_event;
+    std::shared_ptr<Core::Timing::EventType> default_update_event;
+    std::shared_ptr<Core::Timing::EventType> mouse_keyboard_update_event;
+    std::shared_ptr<Core::Timing::EventType> motion_update_event;
+
+    // TODO: Create these resources
+    // std::shared_ptr<AudioControl> audio_control{nullptr};
+    // std::shared_ptr<ButtonConfig> button_config{nullptr};
+    // std::shared_ptr<Config> config{nullptr};
+    // std::shared_ptr<Connection> connection{nullptr};
+    // std::shared_ptr<CustomConfig> custom_config{nullptr};
+    // std::shared_ptr<Digitizer> digitizer{nullptr};
+    // std::shared_ptr<Hdls> hdls{nullptr};
+    // std::shared_ptr<PlayReport> play_report{nullptr};
+    // std::shared_ptr<Rail> rail{nullptr};
+
+    // Touch Resources
+    std::shared_ptr<Gesture> gesture{nullptr};
+    std::shared_ptr<TouchScreen> touch_screen{nullptr};
+    std::shared_ptr<TouchResource> touch_resource{nullptr};
+    std::shared_ptr<TouchDriver> touch_driver{nullptr};
+    std::shared_ptr<Core::Timing::EventType> touch_update_event{nullptr};
+
+    Core::System& system;
+    KernelHelpers::ServiceContext service_context;
+};
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_battery_handler.cpp

@@ -0,0 +1,197 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/core_timing.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/hid_util.h"
+#include "hid_core/resources/abstracted_pad/abstract_battery_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+NpadAbstractBatteryHandler::NpadAbstractBatteryHandler() {}
+
+NpadAbstractBatteryHandler::~NpadAbstractBatteryHandler() = default;
+
+void NpadAbstractBatteryHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractBatteryHandler::SetAppletResource(AppletResourceHolder* applet_resource) {
+    applet_resource_holder = applet_resource;
+}
+
+void NpadAbstractBatteryHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+}
+
+Result NpadAbstractBatteryHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractBatteryHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+Result NpadAbstractBatteryHandler::UpdateBatteryState(u64 aruid) {
+    const auto npad_index = NpadIdTypeToIndex(properties_handler->GetNpadId());
+    AruidData* aruid_data = applet_resource_holder->applet_resource->GetAruidData(aruid);
+    if (aruid_data == nullptr) {
+        return ResultSuccess;
+    }
+
+    auto& npad_internal_state =
+        aruid_data->shared_memory_format->npad.npad_entry[npad_index].internal_state;
+    auto& system_properties = npad_internal_state.system_properties;
+
+    system_properties.is_charging_joy_dual.Assign(dual_battery.is_charging);
+    system_properties.is_powered_joy_dual.Assign(dual_battery.is_powered);
+    system_properties.is_charging_joy_left.Assign(left_battery.is_charging);
+    system_properties.is_powered_joy_left.Assign(left_battery.is_powered);
+    system_properties.is_charging_joy_right.Assign(right_battery.is_charging);
+    system_properties.is_powered_joy_right.Assign(right_battery.is_powered);
+
+    npad_internal_state.battery_level_dual = dual_battery.battery_level;
+    npad_internal_state.battery_level_left = left_battery.battery_level;
+    npad_internal_state.battery_level_right = right_battery.battery_level;
+
+    return ResultSuccess;
+}
+
+void NpadAbstractBatteryHandler::UpdateBatteryState() {
+    if (ref_counter == 0) {
+        return;
+    }
+    has_new_battery_data = GetNewBatteryState();
+}
+
+bool NpadAbstractBatteryHandler::GetNewBatteryState() {
+    bool has_changed = false;
+    Core::HID::NpadPowerInfo new_dual_battery_state{};
+    Core::HID::NpadPowerInfo new_left_battery_state{};
+    Core::HID::NpadPowerInfo new_right_battery_state{};
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        const auto power_info = abstract_pad->power_info;
+        if (power_info.battery_level > Core::HID::NpadBatteryLevel::Full) {
+            // Abort
+            continue;
+        }
+
+        const auto style = abstract_pad->assignment_style;
+
+        if (style.is_external_assigned || style.is_handheld_assigned) {
+            new_dual_battery_state = power_info;
+        }
+        if (style.is_external_left_assigned || style.is_handheld_left_assigned) {
+            new_left_battery_state = power_info;
+        }
+        if (style.is_external_right_assigned || style.is_handheld_right_assigned) {
+            new_right_battery_state = power_info;
+        }
+
+        if (abstract_pad->internal_flags.is_battery_low_ovln_required) {
+            if (abstract_pad->interface_type == Core::HID::NpadInterfaceType::Rail) {
+                // TODO
+            }
+            abstract_pad->internal_flags.is_battery_low_ovln_required.Assign(false);
+        }
+    }
+
+    if (dual_battery.battery_level != new_dual_battery_state.battery_level ||
+        dual_battery.is_charging != new_dual_battery_state.is_charging ||
+        dual_battery.is_powered != new_dual_battery_state.is_powered) {
+        has_changed = true;
+        dual_battery = new_dual_battery_state;
+    }
+
+    if (left_battery.battery_level != new_left_battery_state.battery_level ||
+        left_battery.is_charging != new_left_battery_state.is_charging ||
+        left_battery.is_powered != new_left_battery_state.is_powered) {
+        has_changed = true;
+        left_battery = new_left_battery_state;
+    }
+
+    if (right_battery.battery_level != new_right_battery_state.battery_level ||
+        right_battery.is_charging != new_right_battery_state.is_charging ||
+        right_battery.is_powered != new_right_battery_state.is_powered) {
+        has_changed = true;
+        right_battery = new_right_battery_state;
+    }
+
+    return has_changed;
+}
+
+void NpadAbstractBatteryHandler::UpdateCoreBatteryState() {
+    if (ref_counter == 0) {
+        return;
+    }
+    if (!has_new_battery_data) {
+        return;
+    }
+
+    UpdateBatteryState(0);
+}
+
+void NpadAbstractBatteryHandler::InitializeBatteryState(u64 aruid) {
+    UpdateBatteryState(aruid);
+}
+
+bool NpadAbstractBatteryHandler::HasBattery() const {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    for (std::size_t i = 0; i < count; i++) {
+        const auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        return abstract_pad->disabled_feature_set.has_fullkey_battery ||
+               abstract_pad->disabled_feature_set.has_left_right_joy_battery;
+    }
+
+    return false;
+}
+
+void NpadAbstractBatteryHandler::HasLeftRightBattery(bool& has_left, bool& has_right) const {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    has_left = false;
+    has_right = false;
+
+    for (std::size_t i = 0; i < count; i++) {
+        const auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        if (!abstract_pad->disabled_feature_set.has_fullkey_battery &&
+            !abstract_pad->disabled_feature_set.has_left_right_joy_battery) {
+            continue;
+        }
+        has_left = abstract_pad->assignment_style.is_external_left_assigned ||
+                   abstract_pad->assignment_style.is_handheld_left_assigned;
+        has_right = abstract_pad->assignment_style.is_external_right_assigned ||
+                    abstract_pad->assignment_style.is_handheld_right_assigned;
+    }
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_battery_handler.h

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+struct AppletResourceHolder;
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+
+/// Handles Npad request from HID interfaces
+class NpadAbstractBatteryHandler final {
+public:
+    explicit NpadAbstractBatteryHandler();
+    ~NpadAbstractBatteryHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetAppletResource(AppletResourceHolder* applet_resource);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    Result UpdateBatteryState(u64 aruid);
+    void UpdateBatteryState();
+    bool GetNewBatteryState();
+    void UpdateCoreBatteryState();
+    void InitializeBatteryState(u64 aruid);
+
+    bool HasBattery() const;
+    void HasLeftRightBattery(bool& has_left, bool& has_right) const;
+
+private:
+    AppletResourceHolder* applet_resource_holder{nullptr};
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+
+    s32 ref_counter{};
+    Core::HID::NpadPowerInfo dual_battery{};
+    Core::HID::NpadPowerInfo left_battery{};
+    Core::HID::NpadPowerInfo right_battery{};
+    bool has_new_battery_data{};
+};
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_button_handler.cpp

@@ -0,0 +1,199 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/hid_result.h"
+#include "hid_core/hid_util.h"
+#include "hid_core/resources/abstracted_pad/abstract_button_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+NpadAbstractButtonHandler::NpadAbstractButtonHandler() {}
+
+NpadAbstractButtonHandler::~NpadAbstractButtonHandler() = default;
+
+void NpadAbstractButtonHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractButtonHandler::SetAppletResource(AppletResourceHolder* applet_resource) {
+    applet_resource_holder = applet_resource;
+}
+
+void NpadAbstractButtonHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+}
+
+Result NpadAbstractButtonHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractButtonHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+Result NpadAbstractButtonHandler::UpdateAllButtonWithHomeProtection(u64 aruid) {
+    const Core::HID::NpadIdType npad_id = properties_handler->GetNpadId();
+    auto* data = applet_resource_holder->applet_resource->GetAruidData(aruid);
+
+    if (data == nullptr) {
+        return ResultSuccess;
+    }
+
+    auto& npad_entry = data->shared_memory_format->npad.npad_entry[NpadIdTypeToIndex(npad_id)];
+    UpdateButtonLifo(npad_entry, aruid);
+
+    bool is_home_button_protection_enabled{};
+    const auto result = applet_resource_holder->shared_npad_resource->GetHomeProtectionEnabled(
+        is_home_button_protection_enabled, aruid, npad_id);
+
+    if (result.IsError()) {
+        return ResultSuccess;
+    }
+
+    npad_entry.internal_state.button_properties.is_home_button_protection_enabled.Assign(
+        is_home_button_protection_enabled);
+
+    return ResultSuccess;
+}
+
+void NpadAbstractButtonHandler::UpdateAllButtonLifo() {
+    Core::HID::NpadIdType npad_id = properties_handler->GetNpadId();
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        auto* data = applet_resource_holder->applet_resource->GetAruidDataByIndex(i);
+        auto& npad_entry = data->shared_memory_format->npad.npad_entry[NpadIdTypeToIndex(npad_id)];
+        UpdateButtonLifo(npad_entry, data->aruid);
+    }
+}
+
+void NpadAbstractButtonHandler::UpdateCoreBatteryState() {
+    Core::HID::NpadIdType npad_id = properties_handler->GetNpadId();
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        auto* data = applet_resource_holder->applet_resource->GetAruidDataByIndex(i);
+        auto& npad_entry = data->shared_memory_format->npad.npad_entry[NpadIdTypeToIndex(npad_id)];
+        UpdateButtonLifo(npad_entry, data->aruid);
+    }
+}
+
+void NpadAbstractButtonHandler::UpdateButtonState(u64 aruid) {
+    Core::HID::NpadIdType npad_id = properties_handler->GetNpadId();
+    auto* data = applet_resource_holder->applet_resource->GetAruidData(aruid);
+    if (data == nullptr) {
+        return;
+    }
+    auto& npad_entry = data->shared_memory_format->npad.npad_entry[NpadIdTypeToIndex(npad_id)];
+    UpdateButtonLifo(npad_entry, aruid);
+}
+
+Result NpadAbstractButtonHandler::SetHomeProtection(bool is_enabled, u64 aruid) {
+    const Core::HID::NpadIdType npad_id = properties_handler->GetNpadId();
+    auto result = applet_resource_holder->shared_npad_resource->SetHomeProtectionEnabled(
+        aruid, npad_id, is_enabled);
+    if (result.IsError()) {
+        return result;
+    }
+
+    auto* data = applet_resource_holder->applet_resource->GetAruidData(aruid);
+    if (data == nullptr) {
+        return ResultSuccess;
+    }
+
+    bool is_home_protection_enabled{};
+    result = applet_resource_holder->shared_npad_resource->GetHomeProtectionEnabled(
+        is_home_protection_enabled, aruid, npad_id);
+    if (result.IsError()) {
+        return ResultSuccess;
+    }
+
+    auto& npad_entry = data->shared_memory_format->npad.npad_entry[NpadIdTypeToIndex(npad_id)];
+    npad_entry.internal_state.button_properties.is_home_button_protection_enabled.Assign(
+        is_home_protection_enabled);
+    return ResultSuccess;
+}
+
+bool NpadAbstractButtonHandler::IsButtonPressedOnConsoleMode() {
+    return is_button_pressed_on_console_mode;
+}
+
+void NpadAbstractButtonHandler::EnableCenterClamp() {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        abstract_pad->internal_flags.use_center_clamp.Assign(true);
+    }
+}
+
+void NpadAbstractButtonHandler::UpdateButtonLifo(NpadSharedMemoryEntry& shared_memory, u64 aruid) {
+    auto* npad_resource = applet_resource_holder->shared_npad_resource;
+    Core::HID::NpadStyleTag style_tag = {properties_handler->GetStyleSet(aruid)};
+    style_tag.system_ext.Assign(npad_resource->GetActiveData()->GetNpadSystemExtState());
+
+    UpdateNpadFullkeyLifo(style_tag, 0, aruid, shared_memory);
+    UpdateHandheldLifo(style_tag, 1, aruid, shared_memory);
+    UpdateJoyconDualLifo(style_tag, 2, aruid, shared_memory);
+    UpdateJoyconLeftLifo(style_tag, 3, aruid, shared_memory);
+    UpdateJoyconRightLifo(style_tag, 4, aruid, shared_memory);
+    UpdatePalmaLifo(style_tag, 5, aruid, shared_memory);
+    UpdateSystemExtLifo(style_tag, 6, aruid, shared_memory);
+}
+
+void NpadAbstractButtonHandler::UpdateNpadFullkeyLifo(Core::HID::NpadStyleTag style_tag,
+                                                      int style_index, u64 aruid,
+                                                      NpadSharedMemoryEntry& shared_memory) {
+    // TODO
+}
+
+void NpadAbstractButtonHandler::UpdateHandheldLifo(Core::HID::NpadStyleTag style_tag,
+                                                   int style_index, u64 aruid,
+                                                   NpadSharedMemoryEntry& shared_memory) {
+    // TODO
+}
+
+void NpadAbstractButtonHandler::UpdateJoyconDualLifo(Core::HID::NpadStyleTag style_tag,
+                                                     int style_index, u64 aruid,
+                                                     NpadSharedMemoryEntry& shared_memory) {
+    // TODO
+}
+
+void NpadAbstractButtonHandler::UpdateJoyconLeftLifo(Core::HID::NpadStyleTag style_tag,
+                                                     int style_index, u64 aruid,
+                                                     NpadSharedMemoryEntry& shared_memory) {
+    // TODO
+}
+
+void NpadAbstractButtonHandler::UpdateJoyconRightLifo(Core::HID::NpadStyleTag style_tag,
+                                                      int style_index, u64 aruid,
+                                                      NpadSharedMemoryEntry& shared_memory) {
+    // TODO
+}
+
+void NpadAbstractButtonHandler::UpdateSystemExtLifo(Core::HID::NpadStyleTag style_tag,
+                                                    int style_index, u64 aruid,
+                                                    NpadSharedMemoryEntry& shared_memory) {
+    // TODO
+}
+
+void NpadAbstractButtonHandler::UpdatePalmaLifo(Core::HID::NpadStyleTag style_tag, int style_index,
+                                                u64 aruid, NpadSharedMemoryEntry& shared_memory) {
+    // TODO
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_button_handler.h

@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+struct NpadSharedMemoryEntry;
+
+struct AppletResourceHolder;
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+
+/// Handles Npad request from HID interfaces
+class NpadAbstractButtonHandler final {
+public:
+    explicit NpadAbstractButtonHandler();
+    ~NpadAbstractButtonHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetAppletResource(AppletResourceHolder* applet_resource);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    Result UpdateAllButtonWithHomeProtection(u64 aruid);
+
+    void UpdateAllButtonLifo();
+    void UpdateCoreBatteryState();
+    void UpdateButtonState(u64 aruid);
+
+    Result SetHomeProtection(bool is_enabled, u64 aruid);
+    bool IsButtonPressedOnConsoleMode();
+    void EnableCenterClamp();
+
+    void UpdateButtonLifo(NpadSharedMemoryEntry& shared_memory, u64 aruid);
+
+    void UpdateNpadFullkeyLifo(Core::HID::NpadStyleTag style_tag, int index, u64 aruid,
+                               NpadSharedMemoryEntry& shared_memory);
+    void UpdateHandheldLifo(Core::HID::NpadStyleTag style_tag, int index, u64 aruid,
+                            NpadSharedMemoryEntry& shared_memory);
+    void UpdateJoyconDualLifo(Core::HID::NpadStyleTag style_tag, int index, u64 aruid,
+                              NpadSharedMemoryEntry& shared_memory);
+    void UpdateJoyconLeftLifo(Core::HID::NpadStyleTag style_tag, int index, u64 aruid,
+                              NpadSharedMemoryEntry& shared_memory);
+    void UpdateJoyconRightLifo(Core::HID::NpadStyleTag style_tag, int index, u64 aruid,
+                               NpadSharedMemoryEntry& shared_memory);
+    void UpdateSystemExtLifo(Core::HID::NpadStyleTag style_tag, int index, u64 aruid,
+                             NpadSharedMemoryEntry& shared_memory);
+    void UpdatePalmaLifo(Core::HID::NpadStyleTag style_tag, int index, u64 aruid,
+                         NpadSharedMemoryEntry& shared_memory);
+
+private:
+    struct GcTrigger {
+        float left;
+        float right;
+    };
+
+    AppletResourceHolder* applet_resource_holder{nullptr};
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+
+    s32 ref_counter{};
+
+    bool is_button_pressed_on_console_mode{};
+
+    u64 gc_sampling_number{};
+    GcTrigger gc_trigger_state{};
+};
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_ir_sensor_handler.cpp

@@ -0,0 +1,126 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/kernel/k_readable_event.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/abstracted_pad/abstract_ir_sensor_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+
+NpadAbstractIrSensorHandler::NpadAbstractIrSensorHandler() {}
+
+NpadAbstractIrSensorHandler::~NpadAbstractIrSensorHandler() = default;
+
+void NpadAbstractIrSensorHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractIrSensorHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+}
+
+Result NpadAbstractIrSensorHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractIrSensorHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+void NpadAbstractIrSensorHandler::UpdateIrSensorState() {
+    const auto previous_state = sensor_state;
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    if (count == 0) {
+        sensor_state = NpadIrSensorState::Disabled;
+        if (sensor_state == previous_state) {
+            return;
+        }
+        ir_sensor_event->Signal();
+        return;
+    }
+
+    bool is_found{};
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        if (!abstract_pad->disabled_feature_set.has_bluetooth_address) {
+            continue;
+        }
+        is_found = true;
+        xcd_handle = abstract_pad->xcd_handle;
+    }
+
+    if (is_found) {
+        if (sensor_state == NpadIrSensorState::Active) {
+            return;
+        }
+        sensor_state = NpadIrSensorState::Available;
+        if (sensor_state == previous_state) {
+            return;
+        }
+        ir_sensor_event->Signal();
+        return;
+    }
+
+    sensor_state = NpadIrSensorState::Unavailable;
+    if (sensor_state == previous_state) {
+        return;
+    }
+
+    ir_sensor_event->Signal();
+    return;
+}
+
+Result NpadAbstractIrSensorHandler::ActivateIrSensor(bool is_enabled) {
+    if (sensor_state == NpadIrSensorState::Unavailable) {
+        return ResultIrSensorIsNotReady;
+    }
+    if (is_enabled && sensor_state == NpadIrSensorState::Available) {
+        sensor_state = NpadIrSensorState::Active;
+    } else {
+        if (is_enabled) {
+            return ResultSuccess;
+        }
+        if (sensor_state != NpadIrSensorState::Active) {
+            return ResultSuccess;
+        }
+        sensor_state = NpadIrSensorState::Available;
+    }
+    ir_sensor_event->Signal();
+    return ResultSuccess;
+}
+
+Result NpadAbstractIrSensorHandler::GetIrSensorEventHandle(Kernel::KReadableEvent** out_event) {
+    *out_event = &ir_sensor_event->GetReadableEvent();
+    return ResultSuccess;
+}
+
+Result NpadAbstractIrSensorHandler::GetXcdHandleForNpadWithIrSensor(u64& handle) const {
+    if (sensor_state < NpadIrSensorState::Available) {
+        return ResultIrSensorIsNotReady;
+    }
+    // handle = xcd_handle;
+    return ResultSuccess;
+}
+
+NpadIrSensorState NpadAbstractIrSensorHandler::GetSensorState() const {
+    return sensor_state;
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_ir_sensor_handler.h

@@ -0,0 +1,60 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Core::HID {
+class EmulatedController;
+}
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+enum class NpadIrSensorState : u32 {
+    Disabled,
+    Unavailable,
+    Available,
+    Active,
+};
+
+namespace Service::HID {
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+
+/// Handles Npad request from HID interfaces
+class NpadAbstractIrSensorHandler final {
+public:
+    explicit NpadAbstractIrSensorHandler();
+    ~NpadAbstractIrSensorHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    void UpdateIrSensorState();
+    Result ActivateIrSensor(bool param_2);
+
+    Result GetIrSensorEventHandle(Kernel::KReadableEvent** out_event);
+
+    Result GetXcdHandleForNpadWithIrSensor(u64& handle) const;
+
+    NpadIrSensorState GetSensorState() const;
+
+private:
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+
+    s32 ref_counter{};
+    Kernel::KEvent* ir_sensor_event{nullptr};
+    Core::HID::EmulatedController* xcd_handle{};
+    NpadIrSensorState sensor_state{};
+};
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_led_handler.cpp

@@ -0,0 +1,123 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/core_timing.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/hid_util.h"
+#include "hid_core/resources/abstracted_pad/abstract_led_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+
+NpadAbstractLedHandler::NpadAbstractLedHandler() {}
+
+NpadAbstractLedHandler::~NpadAbstractLedHandler() = default;
+
+void NpadAbstractLedHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractLedHandler::SetAppletResource(AppletResourceHolder* applet_resource) {
+    applet_resource_holder = applet_resource;
+}
+
+void NpadAbstractLedHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+}
+
+Result NpadAbstractLedHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractLedHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+void NpadAbstractLedHandler::SetNpadLedHandlerLedPattern() {
+    const auto npad_id = properties_handler->GetNpadId();
+
+    switch (npad_id) {
+    case Core::HID::NpadIdType::Player1:
+        left_pattern = Core::HID::LedPattern{1, 0, 0, 0};
+        break;
+    case Core::HID::NpadIdType::Player2:
+        left_pattern = Core::HID::LedPattern{1, 1, 0, 0};
+        break;
+    case Core::HID::NpadIdType::Player3:
+        left_pattern = Core::HID::LedPattern{1, 1, 1, 0};
+        break;
+    case Core::HID::NpadIdType::Player4:
+        left_pattern = Core::HID::LedPattern{1, 1, 1, 1};
+        break;
+    case Core::HID::NpadIdType::Player5:
+        left_pattern = Core::HID::LedPattern{1, 0, 0, 1};
+        break;
+    case Core::HID::NpadIdType::Player6:
+        left_pattern = Core::HID::LedPattern{1, 0, 1, 0};
+        break;
+    case Core::HID::NpadIdType::Player7:
+        left_pattern = Core::HID::LedPattern{1, 0, 1, 1};
+        break;
+    case Core::HID::NpadIdType::Player8:
+        left_pattern = Core::HID::LedPattern{0, 1, 1, 0};
+        break;
+    case Core::HID::NpadIdType::Other:
+    case Core::HID::NpadIdType::Handheld:
+        left_pattern = Core::HID::LedPattern{0, 0, 0, 0};
+        break;
+    default:
+        ASSERT_MSG(false, "Invalid npad id type");
+        break;
+    }
+
+    switch (npad_id) {
+    case Core::HID::NpadIdType::Player1:
+        right_pattern = Core::HID::LedPattern{0, 0, 0, 1};
+        break;
+    case Core::HID::NpadIdType::Player2:
+        right_pattern = Core::HID::LedPattern{0, 1, 1, 1};
+        break;
+    case Core::HID::NpadIdType::Player3:
+        right_pattern = Core::HID::LedPattern{0, 1, 1, 1};
+        break;
+    case Core::HID::NpadIdType::Player4:
+        right_pattern = Core::HID::LedPattern{1, 1, 1, 1};
+        break;
+    case Core::HID::NpadIdType::Player5:
+        right_pattern = Core::HID::LedPattern{1, 0, 0, 1};
+        break;
+    case Core::HID::NpadIdType::Player6:
+        right_pattern = Core::HID::LedPattern{0, 1, 0, 1};
+        break;
+    case Core::HID::NpadIdType::Player7:
+        right_pattern = Core::HID::LedPattern{1, 1, 0, 1};
+        break;
+    case Core::HID::NpadIdType::Player8:
+        right_pattern = Core::HID::LedPattern{0, 1, 1, 0};
+        break;
+    case Core::HID::NpadIdType::Other:
+    case Core::HID::NpadIdType::Handheld:
+        right_pattern = Core::HID::LedPattern{0, 0, 0, 0};
+        break;
+    default:
+        ASSERT_MSG(false, "Invalid npad id type");
+        break;
+    }
+}
+
+void NpadAbstractLedHandler::SetLedBlinkingDevice(Core::HID::LedPattern pattern) {
+    led_blinking = pattern;
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_led_handler.h

@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+struct AppletResourceHolder;
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+
+/// Handles Npad request from HID interfaces
+class NpadAbstractLedHandler final {
+public:
+    explicit NpadAbstractLedHandler();
+    ~NpadAbstractLedHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetAppletResource(AppletResourceHolder* applet_resource);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    void SetNpadLedHandlerLedPattern();
+
+    void SetLedBlinkingDevice(Core::HID::LedPattern pattern);
+
+private:
+    AppletResourceHolder* applet_resource_holder{nullptr};
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+
+    s32 ref_counter{};
+    Core::HID::LedPattern led_blinking{0, 0, 0, 0};
+    Core::HID::LedPattern left_pattern{0, 0, 0, 0};
+    Core::HID::LedPattern right_pattern{0, 0, 0, 0};
+    u64 led_interval{};
+};
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_mcu_handler.cpp

@@ -0,0 +1,108 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/abstracted_pad/abstract_mcu_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+
+NpadAbstractMcuHandler::NpadAbstractMcuHandler() {}
+
+NpadAbstractMcuHandler::~NpadAbstractMcuHandler() = default;
+
+void NpadAbstractMcuHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractMcuHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+}
+
+Result NpadAbstractMcuHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractMcuHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+void NpadAbstractMcuHandler::UpdateMcuState() {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = properties_handler->GetAbstractedPads(abstract_pads);
+
+    if (count == 0) {
+        mcu_holder = {};
+        return;
+    }
+
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        if (!abstract_pad->disabled_feature_set.has_left_joy_rail_bus) {
+            if (!abstract_pad->disabled_feature_set.has_left_joy_six_axis_sensor &&
+                !abstract_pad->disabled_feature_set.has_right_joy_six_axis_sensor) {
+                continue;
+            }
+            if (mcu_holder[1].state != NpadMcuState::Active) {
+                mcu_holder[1].state = NpadMcuState::Available;
+            }
+            mcu_holder[1].abstracted_pad = abstract_pad;
+            continue;
+        }
+        if (mcu_holder[0].state != NpadMcuState::Active) {
+            mcu_holder[0].state = NpadMcuState::Available;
+        }
+        mcu_holder[0].abstracted_pad = abstract_pad;
+    }
+}
+
+Result NpadAbstractMcuHandler::GetAbstractedPad(IAbstractedPad** data, u32 mcu_index) {
+    if (mcu_holder[mcu_index].state == NpadMcuState::None ||
+        mcu_holder[mcu_index].abstracted_pad == nullptr) {
+        return ResultMcuIsNotReady;
+    }
+    *data = mcu_holder[mcu_index].abstracted_pad;
+    return ResultSuccess;
+}
+
+NpadMcuState NpadAbstractMcuHandler::GetMcuState(u32 mcu_index) {
+    return mcu_holder[mcu_index].state;
+}
+
+Result NpadAbstractMcuHandler::SetMcuState(bool is_enabled, u32 mcu_index) {
+    NpadMcuState& state = mcu_holder[mcu_index].state;
+
+    if (state == NpadMcuState::None) {
+        return ResultMcuIsNotReady;
+    }
+
+    if ((is_enabled) && (state == NpadMcuState::Available)) {
+        state = NpadMcuState::Active;
+        return ResultSuccess;
+    }
+
+    if (is_enabled) {
+        return ResultSuccess;
+    }
+    if (state != NpadMcuState::Active) {
+        return ResultSuccess;
+    }
+
+    state = NpadMcuState::Available;
+    return ResultSuccess;
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_mcu_handler.h

@@ -0,0 +1,52 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+struct IAbstractedPad;
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+
+enum class NpadMcuState : u32 {
+    None,
+    Available,
+    Active,
+};
+
+struct NpadMcuHolder {
+    NpadMcuState state;
+    INSERT_PADDING_BYTES(0x4);
+    IAbstractedPad* abstracted_pad;
+};
+static_assert(sizeof(NpadMcuHolder) == 0x10, "NpadMcuHolder is an invalid size");
+
+/// Handles Npad request from HID interfaces
+class NpadAbstractMcuHandler final {
+public:
+    explicit NpadAbstractMcuHandler();
+    ~NpadAbstractMcuHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    void UpdateMcuState();
+    Result GetAbstractedPad(IAbstractedPad** data, u32 mcu_index);
+    NpadMcuState GetMcuState(u32 mcu_index);
+    Result SetMcuState(bool is_enabled, u32 mcu_index);
+
+private:
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+
+    s32 ref_counter{};
+    std::array<NpadMcuHolder, 2> mcu_holder{};
+};
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_nfc_handler.cpp

@@ -0,0 +1,140 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/kernel/k_readable_event.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/abstracted_pad/abstract_nfc_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+
+NpadAbstractNfcHandler::NpadAbstractNfcHandler() {}
+
+NpadAbstractNfcHandler::~NpadAbstractNfcHandler() = default;
+
+void NpadAbstractNfcHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractNfcHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+}
+
+Result NpadAbstractNfcHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractNfcHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+void NpadAbstractNfcHandler::UpdateNfcState() {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = properties_handler->GetAbstractedPads(abstract_pads);
+
+    if (count == 0) {
+        if (sensor_state == NpadNfcState::Active) {
+            nfc_activate_event->Signal();
+        }
+        if (sensor_state == NpadNfcState::Unavailable) {
+            return;
+        }
+        sensor_state = NpadNfcState::Unavailable;
+        input_event->Signal();
+        return;
+    }
+
+    bool is_found{};
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        if (!abstract_pad->disabled_feature_set.has_nfc) {
+            continue;
+        }
+        is_found = true;
+        xcd_handle = 0;
+    }
+
+    if (is_found) {
+        if (sensor_state == NpadNfcState::Active) {
+            return;
+        }
+        if (sensor_state == NpadNfcState::Available) {
+            return;
+        }
+        sensor_state = NpadNfcState::Available;
+        input_event->Signal();
+        return;
+    }
+
+    if (sensor_state == NpadNfcState::Active) {
+        nfc_activate_event->Signal();
+    }
+    if (sensor_state == NpadNfcState::Unavailable) {
+        return;
+    }
+    sensor_state = NpadNfcState::Unavailable;
+    input_event->Signal();
+    return;
+}
+
+bool NpadAbstractNfcHandler::HasNfcSensor() {
+    return sensor_state != NpadNfcState::Unavailable;
+}
+
+bool NpadAbstractNfcHandler::IsNfcActivated() {
+    return sensor_state == NpadNfcState::Active;
+}
+
+Result NpadAbstractNfcHandler::GetAcquireNfcActivateEventHandle(
+    Kernel::KReadableEvent** out_event) {
+    *out_event = &nfc_activate_event->GetReadableEvent();
+    return ResultSuccess;
+}
+
+void NpadAbstractNfcHandler::SetInputEvent(Kernel::KEvent* event) {
+    input_event = event;
+}
+
+Result NpadAbstractNfcHandler::ActivateNfc(bool is_enabled) {
+    if (sensor_state == NpadNfcState::Active) {
+        return ResultNfcIsNotReady;
+    }
+
+    NpadNfcState new_state = NpadNfcState::Available;
+    if (is_enabled) {
+        new_state = NpadNfcState::Active;
+    }
+    if (sensor_state != new_state) {
+        sensor_state = new_state;
+        nfc_activate_event->Signal();
+    }
+    return ResultSuccess;
+}
+
+Result NpadAbstractNfcHandler::GetXcdHandleWithNfc(u64& out_xcd_handle) const {
+    if (sensor_state == NpadNfcState::Unavailable) {
+        return ResultNfcIsNotReady;
+    }
+    if (xcd_handle == 0) {
+        return ResultNfcXcdHandleIsNotInitialized;
+    }
+
+    out_xcd_handle = xcd_handle;
+    return ResultSuccess;
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_nfc_handler.h

@@ -0,0 +1,57 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+enum class NpadNfcState : u32 {
+    Unavailable,
+    Available,
+    Active,
+};
+
+namespace Service::HID {
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+
+/// Handles Npad request from HID interfaces
+class NpadAbstractNfcHandler final {
+public:
+    explicit NpadAbstractNfcHandler();
+    ~NpadAbstractNfcHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    void UpdateNfcState();
+    bool HasNfcSensor();
+    bool IsNfcActivated();
+
+    Result GetAcquireNfcActivateEventHandle(Kernel::KReadableEvent** out_event);
+    void SetInputEvent(Kernel::KEvent* event);
+
+    Result ActivateNfc(bool is_enabled);
+
+    Result GetXcdHandleWithNfc(u64& out_xcd_handle) const;
+
+private:
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+
+    s32 ref_counter{};
+    Kernel::KEvent* nfc_activate_event{nullptr};
+    Kernel::KEvent* input_event{nullptr};
+    u64 xcd_handle{};
+    NpadNfcState sensor_state{NpadNfcState::Unavailable};
+};
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_pad.cpp

@@ -0,0 +1,291 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/hid_core.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+
+AbstractPad::AbstractPad() {}
+
+AbstractPad::~AbstractPad() = default;
+
+void AbstractPad::SetExternals(AppletResourceHolder* applet_resource,
+                               CaptureButtonResource* capture_button_resource,
+                               HomeButtonResource* home_button_resource,
+                               SixAxisResource* sixaxis_resource, PalmaResource* palma_resource,
+                               NpadVibration* vibration, Core::HID::HIDCore* core) {
+    applet_resource_holder = applet_resource;
+
+    properties_handler.SetAppletResource(applet_resource_holder);
+    properties_handler.SetAbstractPadHolder(&abstract_pad_holder);
+
+    led_handler.SetAppletResource(applet_resource_holder);
+    led_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    led_handler.SetPropertiesHandler(&properties_handler);
+
+    ir_sensor_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    ir_sensor_handler.SetPropertiesHandler(&properties_handler);
+
+    nfc_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    nfc_handler.SetPropertiesHandler(&properties_handler);
+
+    mcu_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    mcu_handler.SetPropertiesHandler(&properties_handler);
+
+    vibration_handler.SetAppletResource(applet_resource_holder);
+    vibration_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    vibration_handler.SetPropertiesHandler(&properties_handler);
+    vibration_handler.SetN64Vibration(&vibration_n64);
+    vibration_handler.SetVibration(&vibration_left, &vibration_right);
+    vibration_handler.SetGcVibration(&vibration_gc);
+    vibration_handler.SetVibrationHandler(vibration);
+    vibration_handler.SetHidCore(core);
+
+    sixaxis_handler.SetAppletResource(applet_resource_holder);
+    sixaxis_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    sixaxis_handler.SetPropertiesHandler(&properties_handler);
+    sixaxis_handler.SetSixaxisResource(sixaxis_resource);
+
+    button_handler.SetAppletResource(applet_resource_holder);
+    button_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    button_handler.SetPropertiesHandler(&properties_handler);
+
+    battery_handler.SetAppletResource(applet_resource_holder);
+    battery_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    battery_handler.SetPropertiesHandler(&properties_handler);
+
+    palma_handler.SetAbstractPadHolder(&abstract_pad_holder);
+    palma_handler.SetPropertiesHandler(&properties_handler);
+    palma_handler.SetPalmaResource(palma_resource);
+}
+
+void AbstractPad::SetNpadId(Core::HID::NpadIdType npad_id) {
+    properties_handler.SetNpadId(npad_id);
+}
+
+Result AbstractPad::Activate() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+
+    if (ref_counter != 0) {
+        ref_counter++;
+        return ResultSuccess;
+    }
+
+    std::size_t stage = 0;
+    Result result = ResultSuccess;
+
+    if (result.IsSuccess()) {
+        stage++;
+        result = properties_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = led_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = ir_sensor_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = mcu_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = nfc_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = vibration_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = sixaxis_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = button_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = battery_handler.IncrementRefCounter();
+    }
+    if (result.IsSuccess()) {
+        stage++;
+        result = palma_handler.IncrementRefCounter();
+    }
+
+    if (result.IsSuccess()) {
+        ref_counter++;
+        return result;
+    }
+
+    if (stage > 9) {
+        battery_handler.DecrementRefCounter();
+    }
+    if (stage > 8) {
+        button_handler.DecrementRefCounter();
+    }
+    if (stage > 7) {
+        sixaxis_handler.DecrementRefCounter();
+    }
+    if (stage > 6) {
+        vibration_handler.DecrementRefCounter();
+    }
+    if (stage > 5) {
+        nfc_handler.DecrementRefCounter();
+    }
+    if (stage > 4) {
+        mcu_handler.DecrementRefCounter();
+    }
+    if (stage > 3) {
+        ir_sensor_handler.DecrementRefCounter();
+    }
+    if (stage > 2) {
+        led_handler.DecrementRefCounter();
+    }
+    if (stage > 1) {
+        properties_handler.DecrementRefCounter();
+    }
+    return result;
+}
+
+Result AbstractPad::Deactivate() {
+    if (ref_counter == 0) {
+        return ResultNpadResourceNotInitialized;
+    }
+
+    ref_counter--;
+    battery_handler.DecrementRefCounter();
+    button_handler.DecrementRefCounter();
+    sixaxis_handler.DecrementRefCounter();
+    vibration_handler.DecrementRefCounter();
+    nfc_handler.DecrementRefCounter();
+    ir_sensor_handler.DecrementRefCounter();
+    mcu_handler.DecrementRefCounter();
+    led_handler.DecrementRefCounter();
+    properties_handler.DecrementRefCounter();
+    palma_handler.DecrementRefCounter();
+
+    return ResultSuccess;
+}
+
+Result AbstractPad::ActivateNpad(u64 aruid) {
+    Result result = ResultSuccess;
+    if (result.IsSuccess()) {
+        result = properties_handler.ActivateNpadUnknown0x88(aruid);
+    }
+    if (result.IsSuccess()) {
+        result = sixaxis_handler.UpdateSixAxisState2(aruid);
+    }
+    if (result.IsSuccess()) {
+        result = battery_handler.UpdateBatteryState(aruid);
+    }
+    return result;
+}
+
+NpadAbstractedPadHolder* AbstractPad::GetAbstractedPadHolder() {
+    return &abstract_pad_holder;
+}
+
+NpadAbstractPropertiesHandler* AbstractPad::GetAbstractPropertiesHandler() {
+    return &properties_handler;
+}
+
+NpadAbstractLedHandler* AbstractPad::GetAbstractLedHandler() {
+    return &led_handler;
+}
+
+NpadAbstractIrSensorHandler* AbstractPad::GetAbstractIrSensorHandler() {
+    return &ir_sensor_handler;
+}
+
+NpadAbstractMcuHandler* AbstractPad::GetAbstractMcuHandler() {
+    return &mcu_handler;
+}
+
+NpadAbstractNfcHandler* AbstractPad::GetAbstractNfcHandler() {
+    return &nfc_handler;
+}
+
+NpadAbstractVibrationHandler* AbstractPad::GetAbstractVibrationHandler() {
+    return &vibration_handler;
+}
+
+NpadAbstractSixAxisHandler* AbstractPad::GetAbstractSixAxisHandler() {
+    return &sixaxis_handler;
+}
+
+NpadAbstractButtonHandler* AbstractPad::GetAbstractButtonHandler() {
+    return &button_handler;
+}
+
+NpadAbstractBatteryHandler* AbstractPad::GetAbstractBatteryHandler() {
+    return &battery_handler;
+}
+
+NpadN64VibrationDevice* AbstractPad::GetN64VibrationDevice() {
+    return &vibration_n64;
+}
+
+NpadVibrationDevice* AbstractPad::GetVibrationDevice(Core::HID::DeviceIndex device_index) {
+    if (device_index == Core::HID::DeviceIndex::Right) {
+        return &vibration_right;
+    }
+    return &vibration_left;
+}
+
+NpadGcVibrationDevice* AbstractPad::GetGCVibrationDevice() {
+    return &vibration_gc;
+}
+
+Core::HID::NpadIdType AbstractPad::GetLastActiveNpad() {
+    return properties_handler.GetNpadId();
+}
+
+void AbstractPad::UpdateInterfaceType() {
+    if (interface_type != properties_handler.GetInterfaceType()) {
+        Update();
+    }
+    battery_handler.UpdateBatteryState();
+}
+
+void AbstractPad::Update() {
+    properties_handler.UpdateDeviceType();
+    led_handler.SetNpadLedHandlerLedPattern();
+    vibration_handler.UpdateVibrationState();
+    sixaxis_handler.UpdateSixAxisState();
+    nfc_handler.UpdateNfcState();
+    ir_sensor_handler.UpdateIrSensorState();
+    mcu_handler.UpdateMcuState();
+    palma_handler.UpdatePalmaState();
+    battery_handler.UpdateBatteryState();
+    button_handler.EnableCenterClamp();
+
+    interface_type = properties_handler.GetInterfaceType();
+
+    std::scoped_lock lock{*applet_resource_holder->shared_mutex};
+    properties_handler.UpdateAllDeviceProperties();
+    battery_handler.UpdateCoreBatteryState();
+    button_handler.UpdateCoreBatteryState();
+}
+
+void AbstractPad::UpdatePadState() {
+    button_handler.UpdateAllButtonLifo();
+    sixaxis_handler.UpdateSixAxisState();
+    battery_handler.UpdateCoreBatteryState();
+}
+
+void AbstractPad::EnableAppletToGetInput(u64 aruid) {
+    button_handler.UpdateButtonState(aruid);
+    sixaxis_handler.UpdateSixAxisState(aruid);
+    battery_handler.UpdateBatteryState(aruid);
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_pad.h

@@ -0,0 +1,121 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+#include <mutex>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+#include "hid_core/resources/abstracted_pad/abstract_battery_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_button_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_ir_sensor_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_led_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_mcu_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_nfc_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_palma_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_sixaxis_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_vibration_handler.h"
+#include "hid_core/resources/vibration/gc_vibration_device.h"
+#include "hid_core/resources/vibration/n64_vibration_device.h"
+#include "hid_core/resources/vibration/vibration_device.h"
+
+namespace Service::HID {
+class AppletResource;
+class SixAxisResource;
+class PalmaResource;
+class NPadResource;
+class NpadLastActiveHandler;
+class NpadIrNfcHandler;
+class UniquePads;
+class NpadPalmaHandler;
+class FirmwareResource;
+class NpadVibration;
+class NpadHighestBattery;
+class NpadGcVibration;
+
+class CaptureButtonResource;
+class HomeButtonResource;
+
+struct HandheldConfig;
+
+/// Handles Npad request from HID interfaces
+class AbstractPad final {
+public:
+    explicit AbstractPad();
+    ~AbstractPad();
+
+    void SetExternals(AppletResourceHolder* applet_resource,
+                      CaptureButtonResource* capture_button_resource,
+                      HomeButtonResource* home_button_resource, SixAxisResource* sixaxis_resource,
+                      PalmaResource* palma_resource, NpadVibration* vibration,
+                      Core::HID::HIDCore* core);
+    void SetNpadId(Core::HID::NpadIdType npad_id);
+
+    Result Activate();
+    Result Deactivate();
+
+    Result ActivateNpad(u64 aruid);
+
+    NpadAbstractedPadHolder* GetAbstractedPadHolder();
+    NpadAbstractPropertiesHandler* GetAbstractPropertiesHandler();
+    NpadAbstractLedHandler* GetAbstractLedHandler();
+    NpadAbstractIrSensorHandler* GetAbstractIrSensorHandler();
+    NpadAbstractMcuHandler* GetAbstractMcuHandler();
+    NpadAbstractNfcHandler* GetAbstractNfcHandler();
+    NpadAbstractVibrationHandler* GetAbstractVibrationHandler();
+    NpadAbstractSixAxisHandler* GetAbstractSixAxisHandler();
+    NpadAbstractButtonHandler* GetAbstractButtonHandler();
+    NpadAbstractBatteryHandler* GetAbstractBatteryHandler();
+
+    NpadN64VibrationDevice* GetN64VibrationDevice();
+    NpadVibrationDevice* GetVibrationDevice(Core::HID::DeviceIndex device_index);
+    NpadGcVibrationDevice* GetGCVibrationDevice();
+
+    Core::HID::NpadIdType GetLastActiveNpad();
+    void UpdateInterfaceType();
+    void Update();
+
+    void UpdatePadState();
+    void EnableAppletToGetInput(u64 aruid);
+
+private:
+    AppletResourceHolder* applet_resource_holder{nullptr};
+    NpadAbstractedPadHolder abstract_pad_holder{};
+    NpadAbstractPropertiesHandler properties_handler{};
+    NpadAbstractLedHandler led_handler{};
+    NpadAbstractIrSensorHandler ir_sensor_handler{};
+    NpadAbstractNfcHandler nfc_handler{};
+    NpadAbstractMcuHandler mcu_handler{};
+    NpadAbstractVibrationHandler vibration_handler{};
+    NpadAbstractSixAxisHandler sixaxis_handler{};
+    NpadAbstractButtonHandler button_handler{};
+    NpadAbstractBatteryHandler battery_handler{};
+    NpadAbstractPalmaHandler palma_handler{};
+
+    NpadN64VibrationDevice vibration_n64{};
+    NpadVibrationDevice vibration_left{};
+    NpadVibrationDevice vibration_right{};
+    NpadGcVibrationDevice vibration_gc{};
+
+    // SixAxisConfigHolder fullkey_config;
+    // SixAxisConfigHolder handheld_config;
+    // SixAxisConfigHolder dual_left_config;
+    // SixAxisConfigHolder dual_right_config;
+    // SixAxisConfigHolder left_config;
+    // SixAxisConfigHolder right_config;
+
+    s32 ref_counter{};
+    Core::HID::NpadInterfaceType interface_type{Core::HID::NpadInterfaceType::None};
+};
+
+using FullAbstractPad = std::array<AbstractPad, MaxSupportedNpadIdTypes>;
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_pad_holder.cpp

@@ -0,0 +1,99 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+
+Result NpadAbstractedPadHolder::RegisterAbstractPad(IAbstractedPad* abstracted_pad) {
+    if (list_size >= assignment_list.size()) {
+        return ResultNpadIsNotProController;
+    }
+
+    for (std::size_t i = 0; i < list_size; i++) {
+        if (assignment_list[i].device_type == abstracted_pad->device_type) {
+            return ResultNpadIsNotProController;
+        }
+    }
+
+    assignment_list[list_size] = {
+        .abstracted_pad = abstracted_pad,
+        .device_type = abstracted_pad->device_type,
+        .interface_type = abstracted_pad->interface_type,
+        .controller_id = abstracted_pad->controller_id,
+    };
+
+    list_size++;
+    return ResultSuccess;
+}
+
+void NpadAbstractedPadHolder::RemoveAbstractPadByControllerId(u64 controller_id) {
+    if (list_size == 0) {
+        return;
+    }
+    if (controller_id == 0) {
+        return;
+    }
+    for (std::size_t i = 0; i < list_size; i++) {
+        if (assignment_list[i].controller_id != controller_id) {
+            continue;
+        }
+        for (std::size_t e = i + 1; e < list_size; e++) {
+            assignment_list[e - 1] = assignment_list[e];
+        }
+        list_size--;
+        return;
+    }
+}
+
+void NpadAbstractedPadHolder::DetachAbstractedPad() {
+    while (list_size > 0) {
+        for (std::size_t i = 1; i < list_size; i++) {
+            assignment_list[i - 1] = assignment_list[i];
+        }
+        list_size--;
+    }
+}
+
+u64 NpadAbstractedPadHolder::RemoveAbstractPadByAssignmentStyle(
+    Service::HID::AssignmentStyle assignment_style) {
+    for (std::size_t i = 0; i < list_size; i++) {
+        if ((assignment_style.raw & assignment_list[i].abstracted_pad->assignment_style.raw) == 0) {
+            continue;
+        }
+        for (std::size_t e = i + 1; e < list_size; e++) {
+            assignment_list[e - 1] = assignment_list[e];
+        }
+        list_size--;
+        return list_size;
+    }
+    return list_size;
+}
+
+u32 NpadAbstractedPadHolder::GetAbstractedPads(std::span<IAbstractedPad*> list) const {
+    u32 num_elements = std::min(static_cast<u32>(list.size()), list_size);
+    for (std::size_t i = 0; i < num_elements; i++) {
+        list[i] = assignment_list[i].abstracted_pad;
+    }
+    return num_elements;
+}
+
+void NpadAbstractedPadHolder::SetAssignmentMode(const NpadJoyAssignmentMode& mode) {
+    assignment_mode = mode;
+}
+
+NpadJoyAssignmentMode NpadAbstractedPadHolder::GetAssignmentMode() const {
+    return assignment_mode;
+}
+
+std::size_t NpadAbstractedPadHolder::GetStyleIndexList(
+    std::span<Core::HID::NpadStyleIndex> list) const {
+    for (std::size_t i = 0; i < list_size; i++) {
+        list[i] = assignment_list[i].device_type;
+    }
+    return list_size;
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_pad_holder.h

@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+#include <mutex>
+#include <span>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+struct IAbstractedPad;
+
+struct AbstractAssignmentHolder {
+    IAbstractedPad* abstracted_pad;
+    Core::HID::NpadStyleIndex device_type;
+    Core::HID::NpadInterfaceType interface_type;
+    INSERT_PADDING_BYTES(0x6);
+    u64 controller_id;
+};
+static_assert(sizeof(AbstractAssignmentHolder) == 0x18,
+              "AbstractAssignmentHolder  is an invalid size");
+
+/// This is nn::hid::server::NpadAbstractedPadHolder
+class NpadAbstractedPadHolder final {
+public:
+    Result RegisterAbstractPad(IAbstractedPad* abstracted_pad);
+    void RemoveAbstractPadByControllerId(u64 controller_id);
+    void DetachAbstractedPad();
+    u64 RemoveAbstractPadByAssignmentStyle(Service::HID::AssignmentStyle assignment_style);
+    u32 GetAbstractedPads(std::span<IAbstractedPad*> list) const;
+
+    void SetAssignmentMode(const NpadJoyAssignmentMode& mode);
+    NpadJoyAssignmentMode GetAssignmentMode() const;
+
+    std::size_t GetStyleIndexList(std::span<Core::HID::NpadStyleIndex> list) const;
+
+private:
+    std::array<AbstractAssignmentHolder, 5> assignment_list{};
+    u32 list_size{};
+    NpadJoyAssignmentMode assignment_mode{NpadJoyAssignmentMode::Dual};
+};
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_palma_handler.cpp

@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/abstracted_pad/abstract_palma_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+
+namespace Service::HID {
+
+NpadAbstractPalmaHandler::NpadAbstractPalmaHandler() {}
+
+NpadAbstractPalmaHandler::~NpadAbstractPalmaHandler() = default;
+
+void NpadAbstractPalmaHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractPalmaHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+    return;
+}
+
+void NpadAbstractPalmaHandler::SetPalmaResource(PalmaResource* resource) {
+    palma_resource = resource;
+}
+
+Result NpadAbstractPalmaHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractPalmaHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+void NpadAbstractPalmaHandler::UpdatePalmaState() {
+    // TODO
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_palma_handler.h

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+class PalmaResource;
+
+class NpadAbstractPalmaHandler final {
+public:
+    explicit NpadAbstractPalmaHandler();
+    ~NpadAbstractPalmaHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+    void SetPalmaResource(PalmaResource* resource);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    void UpdatePalmaState();
+
+private:
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+    PalmaResource* palma_resource{nullptr};
+
+    s32 ref_counter{};
+};
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_properties_handler.cpp

@@ -0,0 +1,322 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/hid_util.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+NpadAbstractPropertiesHandler::NpadAbstractPropertiesHandler() {}
+
+NpadAbstractPropertiesHandler::~NpadAbstractPropertiesHandler() = default;
+
+void NpadAbstractPropertiesHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+    return;
+}
+
+void NpadAbstractPropertiesHandler::SetAppletResource(AppletResourceHolder* applet_resource) {
+    applet_resource_holder = applet_resource;
+    return;
+}
+
+void NpadAbstractPropertiesHandler::SetNpadId(Core::HID::NpadIdType npad_id) {
+    if (!IsNpadIdValid(npad_id)) {
+        ASSERT_MSG(false, "Invalid npad id");
+    }
+
+    npad_id_type = npad_id;
+}
+
+Core::HID::NpadIdType NpadAbstractPropertiesHandler::GetNpadId() const {
+    return npad_id_type;
+}
+
+Result NpadAbstractPropertiesHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+
+    if (ref_counter != 0) {
+        ref_counter++;
+        return ResultSuccess;
+    }
+
+    const auto npad_index = NpadIdTypeToIndex(npad_id_type);
+    for (std::size_t aruid_index = 0; aruid_index < AruidIndexMax; aruid_index++) {
+        auto* data = applet_resource_holder->applet_resource->GetAruidData(aruid_index);
+        auto& internal_state =
+            data->shared_memory_format->npad.npad_entry[npad_index].internal_state;
+        if (!data->flag.is_assigned) {
+            continue;
+        }
+        internal_state.fullkey_lifo.buffer_count = 0;
+        internal_state.handheld_lifo.buffer_count = 0;
+        internal_state.joy_dual_lifo.buffer_count = 0;
+        internal_state.joy_left_lifo.buffer_count = 0;
+        internal_state.joy_right_lifo.buffer_count = 0;
+        internal_state.palma_lifo.buffer_count = 0;
+        internal_state.system_ext_lifo.buffer_count = 0;
+        internal_state.gc_trigger_lifo.buffer_count = 0;
+        internal_state.sixaxis_fullkey_lifo.lifo.buffer_count = 0;
+        internal_state.sixaxis_handheld_lifo.lifo.buffer_count = 0;
+        internal_state.sixaxis_dual_left_lifo.lifo.buffer_count = 0;
+        internal_state.sixaxis_dual_right_lifo.lifo.buffer_count = 0;
+        internal_state.sixaxis_left_lifo.lifo.buffer_count = 0;
+        internal_state.sixaxis_right_lifo.lifo.buffer_count = 0;
+
+        internal_state.style_tag = {Core::HID::NpadStyleSet::None};
+        internal_state.assignment_mode = NpadJoyAssignmentMode::Dual;
+        internal_state.joycon_color = {};
+        internal_state.fullkey_color = {};
+
+        internal_state.system_properties.raw = 0;
+        internal_state.button_properties.raw = 0;
+        internal_state.device_type.raw = 0;
+
+        internal_state.battery_level_dual = Core::HID::NpadBatteryLevel::Empty;
+        internal_state.battery_level_left = Core::HID::NpadBatteryLevel::Empty;
+        internal_state.battery_level_right = Core::HID::NpadBatteryLevel::Empty;
+
+        internal_state.applet_footer_type = AppletFooterUiType::None;
+        internal_state.applet_footer_attributes = {};
+        internal_state.lark_type_l_and_main = {};
+        internal_state.lark_type_r = {};
+
+        internal_state.sixaxis_fullkey_properties.is_newly_assigned.Assign(true);
+        internal_state.sixaxis_handheld_properties.is_newly_assigned.Assign(true);
+        internal_state.sixaxis_dual_left_properties.is_newly_assigned.Assign(true);
+        internal_state.sixaxis_dual_right_properties.is_newly_assigned.Assign(true);
+        internal_state.sixaxis_left_properties.is_newly_assigned.Assign(true);
+        internal_state.sixaxis_right_properties.is_newly_assigned.Assign(true);
+    }
+
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractPropertiesHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+Result NpadAbstractPropertiesHandler::ActivateNpadUnknown0x88(u64 aruid) {
+    const auto npad_index = NpadIdTypeToIndex(npad_id_type);
+    for (std::size_t aruid_index = 0; aruid_index < AruidIndexMax; aruid_index++) {
+        auto* data = applet_resource_holder->applet_resource->GetAruidData(aruid_index);
+        if (!data->flag.is_assigned || data->aruid != aruid) {
+            continue;
+        }
+        UpdateDeviceProperties(aruid, data->shared_memory_format->npad.npad_entry[npad_index]);
+        return ResultSuccess;
+    }
+    return ResultSuccess;
+}
+
+void NpadAbstractPropertiesHandler::UpdateDeviceType() {
+    // TODO
+}
+
+void NpadAbstractPropertiesHandler::UpdateDeviceColor() {
+    // TODO
+}
+
+void NpadAbstractPropertiesHandler::UpdateFooterAttributes() {
+    // TODO
+}
+
+void NpadAbstractPropertiesHandler::UpdateAllDeviceProperties() {
+    const auto npad_index = NpadIdTypeToIndex(npad_id_type);
+    for (std::size_t aruid_index = 0; aruid_index < AruidIndexMax; aruid_index++) {
+        auto* data = applet_resource_holder->applet_resource->GetAruidData(aruid_index);
+        if (data == nullptr || !data->flag.is_assigned) {
+            continue;
+        }
+        auto& npad_entry = data->shared_memory_format->npad.npad_entry[npad_index];
+        UpdateDeviceProperties(data->aruid, npad_entry);
+    }
+}
+
+Core::HID::NpadInterfaceType NpadAbstractPropertiesHandler::GetFullkeyInterfaceType() {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        if (abstract_pad->device_type != Core::HID::NpadStyleIndex::Fullkey) {
+            continue;
+        }
+        if (abstract_pad->interface_type >= Core::HID::NpadInterfaceType::Embedded) {
+            // Abort
+            continue;
+        }
+        return abstract_pad->interface_type;
+    }
+
+    return Core::HID::NpadInterfaceType::None;
+}
+
+Core::HID::NpadInterfaceType NpadAbstractPropertiesHandler::GetInterfaceType() {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        if (!abstract_pad->disabled_feature_set.has_identification_code) {
+            continue;
+        }
+        if (abstract_pad->interface_type >= Core::HID::NpadInterfaceType::Embedded) {
+            // Abort
+            continue;
+        }
+        return abstract_pad->interface_type;
+    }
+    return Core::HID::NpadInterfaceType::None;
+}
+
+Core::HID::NpadStyleSet NpadAbstractPropertiesHandler::GetStyleSet(u64 aruid) {
+    // TODO
+    return Core::HID::NpadStyleSet::None;
+}
+
+std::size_t NpadAbstractPropertiesHandler::GetAbstractedPadsWithStyleTag(
+    std::span<IAbstractedPad*> list, Core::HID::NpadStyleTag style) {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    if (count == 0) {
+        return count;
+    }
+
+    bool is_supported_style_set{};
+    const auto result = applet_resource_holder->shared_npad_resource->IsSupportedNpadStyleSet(
+        is_supported_style_set, applet_resource_holder->applet_resource->GetActiveAruid());
+
+    if (!is_supported_style_set || result.IsError()) {
+        for (std::size_t i = 0; i < count; i++) {
+            // TODO
+        }
+        return count;
+    }
+
+    std::size_t filtered_count{};
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        const bool is_enabled = true;
+        if (is_enabled) {
+            list[filtered_count] = abstract_pad;
+            filtered_count++;
+        }
+    }
+
+    return filtered_count;
+}
+
+std::size_t NpadAbstractPropertiesHandler::GetAbstractedPads(std::span<IAbstractedPad*> list) {
+    Core::HID::NpadStyleTag style{
+        GetStyleSet(applet_resource_holder->applet_resource->GetActiveAruid())};
+    return GetAbstractedPadsWithStyleTag(list, style);
+}
+
+AppletFooterUiType NpadAbstractPropertiesHandler::GetAppletFooterUiType() {
+    return applet_ui_type.footer;
+}
+
+AppletDetailedUiType NpadAbstractPropertiesHandler::GetAppletDetailedUiType() {
+    return applet_ui_type;
+}
+
+void NpadAbstractPropertiesHandler::UpdateDeviceProperties(u64 aruid,
+                                                           NpadSharedMemoryEntry& internal_state) {
+    // TODO
+}
+
+Core::HID::NpadInterfaceType NpadAbstractPropertiesHandler::GetNpadInterfaceType() {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        if (abstract_pad->interface_type >= Core::HID::NpadInterfaceType::Embedded) {
+            // Abort
+            continue;
+        }
+        return abstract_pad->interface_type;
+    }
+
+    return Core::HID::NpadInterfaceType::None;
+}
+
+Result NpadAbstractPropertiesHandler::GetNpadFullKeyGripColor(
+    Core::HID::NpadColor& main_color, Core::HID::NpadColor& sub_color) const {
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    if (applet_ui_type.footer != AppletFooterUiType::SwitchProController) {
+        return ResultNpadIsNotProController;
+    }
+
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        return ResultSuccess;
+    }
+
+    return ResultNpadIsNotProController;
+}
+
+void NpadAbstractPropertiesHandler::GetNpadLeftRightInterfaceType(
+    Core::HID::NpadInterfaceType& out_left_interface,
+    Core::HID::NpadInterfaceType& out_right_interface) const {
+    out_left_interface = Core::HID::NpadInterfaceType::None;
+    out_right_interface = Core::HID::NpadInterfaceType::None;
+
+    std::array<IAbstractedPad*, 5> abstract_pads{};
+    const std::size_t count = abstract_pad_holder->GetAbstractedPads(abstract_pads);
+
+    for (std::size_t i = 0; i < count; i++) {
+        auto* abstract_pad = abstract_pads[i];
+        if (!abstract_pad->internal_flags.is_connected) {
+            continue;
+        }
+        if (abstract_pad->assignment_style.is_external_left_assigned &&
+            abstract_pad->assignment_style.is_handheld_left_assigned) {
+            if (abstract_pad->interface_type > Core::HID::NpadInterfaceType::Embedded) {
+                // Abort
+                continue;
+            }
+            out_left_interface = abstract_pad->interface_type;
+            continue;
+        }
+        if (abstract_pad->assignment_style.is_external_right_assigned &&
+            abstract_pad->assignment_style.is_handheld_right_assigned) {
+            if (abstract_pad->interface_type > Core::HID::NpadInterfaceType::Embedded) {
+                // Abort
+                continue;
+            }
+            out_right_interface = abstract_pad->interface_type;
+            continue;
+        }
+    }
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_properties_handler.h

@@ -0,0 +1,86 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <span>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+struct NpadSharedMemoryEntry;
+
+struct AppletResourceHolder;
+class NpadAbstractedPadHolder;
+
+struct ColorProperties {
+    ColorAttribute attribute;
+    Core::HID::NpadControllerColor color;
+    INSERT_PADDING_BYTES(0x4);
+};
+
+/// Handles Npad request from HID interfaces
+class NpadAbstractPropertiesHandler final {
+public:
+    explicit NpadAbstractPropertiesHandler();
+    ~NpadAbstractPropertiesHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetAppletResource(AppletResourceHolder* applet_resource);
+    void SetNpadId(Core::HID::NpadIdType npad_id);
+
+    Core::HID::NpadIdType GetNpadId() const;
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    Result ActivateNpadUnknown0x88(u64 aruid);
+
+    void UpdateDeviceType();
+    void UpdateDeviceColor();
+    void UpdateFooterAttributes();
+    void UpdateAllDeviceProperties();
+
+    Core::HID::NpadInterfaceType GetFullkeyInterfaceType();
+    Core::HID::NpadInterfaceType GetInterfaceType();
+
+    Core::HID::NpadStyleSet GetStyleSet(u64 aruid);
+    std::size_t GetAbstractedPadsWithStyleTag(std::span<IAbstractedPad*> list,
+                                              Core::HID::NpadStyleTag style);
+    std::size_t GetAbstractedPads(std::span<IAbstractedPad*> list);
+
+    AppletFooterUiType GetAppletFooterUiType();
+
+    AppletDetailedUiType GetAppletDetailedUiType();
+
+    void UpdateDeviceProperties(u64 aruid, NpadSharedMemoryEntry& internal_state);
+
+    Core::HID::NpadInterfaceType GetNpadInterfaceType();
+
+    Result GetNpadFullKeyGripColor(Core::HID::NpadColor& main_color,
+                                   Core::HID::NpadColor& sub_color) const;
+
+    void GetNpadLeftRightInterfaceType(Core::HID::NpadInterfaceType& param_2,
+                                       Core::HID::NpadInterfaceType& param_3) const;
+
+private:
+    AppletResourceHolder* applet_resource_holder{nullptr};
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    Core::HID::NpadIdType npad_id_type{Core::HID::NpadIdType::Invalid};
+    s32 ref_counter{};
+    Core::HID::DeviceIndex device_type{};
+    AppletDetailedUiType applet_ui_type{};
+    AppletFooterUiAttributes applet_ui_attributes{};
+    bool is_vertical{};
+    bool is_horizontal{};
+    bool use_plus{};
+    bool use_minus{};
+    bool has_directional_buttons{};
+    ColorProperties fullkey_color{};
+    ColorProperties left_color{};
+    ColorProperties right_color{};
+};
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_sixaxis_handler.cpp

@@ -0,0 +1,154 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/hid_result.h"
+#include "hid_core/hid_util.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_sixaxis_handler.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+NpadAbstractSixAxisHandler::NpadAbstractSixAxisHandler() {}
+
+NpadAbstractSixAxisHandler::~NpadAbstractSixAxisHandler() = default;
+
+void NpadAbstractSixAxisHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractSixAxisHandler::SetAppletResource(AppletResourceHolder* applet_resource) {
+    applet_resource_holder = applet_resource;
+}
+
+void NpadAbstractSixAxisHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+}
+
+void NpadAbstractSixAxisHandler::SetSixaxisResource(SixAxisResource* resource) {
+    six_axis_resource = resource;
+}
+
+Result NpadAbstractSixAxisHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractSixAxisHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+u64 NpadAbstractSixAxisHandler::IsFirmwareUpdateAvailable() {
+    // TODO
+    return false;
+}
+
+Result NpadAbstractSixAxisHandler::UpdateSixAxisState() {
+    Core::HID::NpadIdType npad_id = properties_handler->GetNpadId();
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        auto* data = applet_resource_holder->applet_resource->GetAruidDataByIndex(i);
+        if (data == nullptr || !data->flag.is_assigned) {
+            continue;
+        }
+        auto& npad_entry = data->shared_memory_format->npad.npad_entry[NpadIdTypeToIndex(npad_id)];
+        UpdateSixaxisInternalState(npad_entry, data->aruid,
+                                   data->flag.enable_six_axis_sensor.As<bool>());
+    }
+    return ResultSuccess;
+}
+
+Result NpadAbstractSixAxisHandler::UpdateSixAxisState(u64 aruid) {
+    Core::HID::NpadIdType npad_id = properties_handler->GetNpadId();
+    auto* data = applet_resource_holder->applet_resource->GetAruidData(aruid);
+    if (data == nullptr) {
+        return ResultSuccess;
+    }
+    auto& npad_entry = data->shared_memory_format->npad.npad_entry[NpadIdTypeToIndex(npad_id)];
+    UpdateSixaxisInternalState(npad_entry, data->aruid,
+                               data->flag.enable_six_axis_sensor.As<bool>());
+    return ResultSuccess;
+}
+
+Result NpadAbstractSixAxisHandler::UpdateSixAxisState2(u64 aruid) {
+    const auto npad_index = NpadIdTypeToIndex(properties_handler->GetNpadId());
+    AruidData* aruid_data = applet_resource_holder->applet_resource->GetAruidData(aruid);
+    if (aruid_data == nullptr) {
+        return ResultSuccess;
+    }
+    auto& npad_internal_state = aruid_data->shared_memory_format->npad.npad_entry[npad_index];
+    UpdateSixaxisInternalState(npad_internal_state, aruid,
+                               aruid_data->flag.enable_six_axis_sensor.As<bool>());
+    return ResultSuccess;
+}
+
+void NpadAbstractSixAxisHandler::UpdateSixaxisInternalState(NpadSharedMemoryEntry& npad_entry,
+                                                            u64 aruid, bool is_sensor_enabled) {
+    const Core::HID::NpadStyleTag style_tag{properties_handler->GetStyleSet(aruid)};
+
+    if (!style_tag.palma) {
+        UpdateSixaxisFullkeyLifo(style_tag, npad_entry.internal_state.sixaxis_fullkey_lifo,
+                                 is_sensor_enabled);
+    } else {
+        UpdateSixAxisPalmaLifo(style_tag, npad_entry.internal_state.sixaxis_fullkey_lifo,
+                               is_sensor_enabled);
+    }
+    UpdateSixaxisHandheldLifo(style_tag, npad_entry.internal_state.sixaxis_handheld_lifo,
+                              is_sensor_enabled);
+    UpdateSixaxisDualLifo(style_tag, npad_entry.internal_state.sixaxis_dual_left_lifo,
+                          is_sensor_enabled);
+    UpdateSixaxisDualLifo(style_tag, npad_entry.internal_state.sixaxis_dual_right_lifo,
+                          is_sensor_enabled);
+    UpdateSixaxisLeftLifo(style_tag, npad_entry.internal_state.sixaxis_left_lifo,
+                          is_sensor_enabled);
+    UpdateSixaxisRightLifo(style_tag, npad_entry.internal_state.sixaxis_right_lifo,
+                           is_sensor_enabled);
+    // TODO: Set sixaxis properties
+}
+
+void NpadAbstractSixAxisHandler::UpdateSixaxisFullkeyLifo(Core::HID::NpadStyleTag style_tag,
+                                                          NpadSixAxisSensorLifo& sensor_lifo,
+                                                          bool is_sensor_enabled) {
+    // TODO
+}
+
+void NpadAbstractSixAxisHandler::UpdateSixAxisPalmaLifo(Core::HID::NpadStyleTag style_tag,
+                                                        NpadSixAxisSensorLifo& sensor_lifo,
+                                                        bool is_sensor_enabled) {
+    // TODO
+}
+
+void NpadAbstractSixAxisHandler::UpdateSixaxisHandheldLifo(Core::HID::NpadStyleTag style_tag,
+                                                           NpadSixAxisSensorLifo& sensor_lifo,
+                                                           bool is_sensor_enabled) {
+    // TODO
+}
+
+void NpadAbstractSixAxisHandler::UpdateSixaxisDualLifo(Core::HID::NpadStyleTag style_tag,
+                                                       NpadSixAxisSensorLifo& sensor_lifo,
+                                                       bool is_sensor_enabled) {
+    // TODO
+}
+
+void NpadAbstractSixAxisHandler::UpdateSixaxisLeftLifo(Core::HID::NpadStyleTag style_tag,
+                                                       NpadSixAxisSensorLifo& sensor_lifo,
+                                                       bool is_sensor_enabled) {
+    // TODO
+}
+
+void NpadAbstractSixAxisHandler::UpdateSixaxisRightLifo(Core::HID::NpadStyleTag style_tag,
+                                                        NpadSixAxisSensorLifo& sensor_lifo,
+                                                        bool is_sensor_enabled) {
+    // TODO
+}
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_sixaxis_handler.h

@@ -0,0 +1,61 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+class SixAxisResource;
+struct AppletResourceHolder;
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+struct NpadSixAxisSensorLifo;
+
+/// Handles Npad request from HID interfaces
+class NpadAbstractSixAxisHandler final {
+public:
+    explicit NpadAbstractSixAxisHandler();
+    ~NpadAbstractSixAxisHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetAppletResource(AppletResourceHolder* applet_resource);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+    void SetSixaxisResource(SixAxisResource* resource);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    u64 IsFirmwareUpdateAvailable();
+
+    Result UpdateSixAxisState();
+    Result UpdateSixAxisState(u64 aruid);
+    Result UpdateSixAxisState2(u64 aruid);
+
+private:
+    void UpdateSixaxisInternalState(NpadSharedMemoryEntry& npad_entry, u64 aruid,
+                                    bool is_sensor_enabled);
+    void UpdateSixaxisFullkeyLifo(Core::HID::NpadStyleTag style_tag,
+                                  NpadSixAxisSensorLifo& sensor_lifo, bool is_sensor_enabled);
+    void UpdateSixAxisPalmaLifo(Core::HID::NpadStyleTag style_tag,
+                                NpadSixAxisSensorLifo& sensor_lifo, bool is_sensor_enabled);
+    void UpdateSixaxisHandheldLifo(Core::HID::NpadStyleTag style_tag,
+                                   NpadSixAxisSensorLifo& sensor_lifo, bool is_sensor_enabled);
+    void UpdateSixaxisDualLifo(Core::HID::NpadStyleTag style_tag,
+                               NpadSixAxisSensorLifo& sensor_lifo, bool is_sensor_enabled);
+    void UpdateSixaxisLeftLifo(Core::HID::NpadStyleTag style_tag,
+                               NpadSixAxisSensorLifo& sensor_lifo, bool is_sensor_enabled);
+    void UpdateSixaxisRightLifo(Core::HID::NpadStyleTag style_tag,
+                                NpadSixAxisSensorLifo& sensor_lifo, bool is_sensor_enabled);
+
+    AppletResourceHolder* applet_resource_holder{nullptr};
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+    SixAxisResource* six_axis_resource{nullptr};
+
+    s32 ref_counter{};
+};
+
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_vibration_handler.cpp

@@ -0,0 +1,107 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/hid_util.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad_holder.h"
+#include "hid_core/resources/abstracted_pad/abstract_properties_handler.h"
+#include "hid_core/resources/abstracted_pad/abstract_vibration_handler.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_vibration.h"
+#include "hid_core/resources/vibration/gc_vibration_device.h"
+#include "hid_core/resources/vibration/n64_vibration_device.h"
+#include "hid_core/resources/vibration/vibration_device.h"
+
+namespace Service::HID {
+
+NpadAbstractVibrationHandler::NpadAbstractVibrationHandler() {}
+
+NpadAbstractVibrationHandler::~NpadAbstractVibrationHandler() = default;
+
+void NpadAbstractVibrationHandler::SetAbstractPadHolder(NpadAbstractedPadHolder* holder) {
+    abstract_pad_holder = holder;
+}
+
+void NpadAbstractVibrationHandler::SetAppletResource(AppletResourceHolder* applet_resource) {
+    applet_resource_holder = applet_resource;
+}
+
+void NpadAbstractVibrationHandler::SetPropertiesHandler(NpadAbstractPropertiesHandler* handler) {
+    properties_handler = handler;
+}
+
+void NpadAbstractVibrationHandler::SetVibrationHandler(NpadVibration* handler) {
+    vibration_handler = handler;
+}
+
+void NpadAbstractVibrationHandler::SetHidCore(Core::HID::HIDCore* core) {
+    hid_core = core;
+}
+
+void NpadAbstractVibrationHandler::SetN64Vibration(NpadN64VibrationDevice* n64_device) {
+    n64_vibration_device = n64_device;
+}
+
+void NpadAbstractVibrationHandler::SetVibration(NpadVibrationDevice* left_device,
+                                                NpadVibrationDevice* right_device) {
+    left_vibration_device = left_device;
+    right_vibration_device = right_device;
+}
+
+void NpadAbstractVibrationHandler::SetGcVibration(NpadGcVibrationDevice* gc_device) {
+    gc_vibration_device = gc_device;
+}
+
+Result NpadAbstractVibrationHandler::IncrementRefCounter() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultNpadHandlerOverflow;
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NpadAbstractVibrationHandler::DecrementRefCounter() {
+    if (ref_counter == 0) {
+        return ResultNpadHandlerNotInitialized;
+    }
+    ref_counter--;
+    return ResultSuccess;
+}
+
+void NpadAbstractVibrationHandler::UpdateVibrationState() {
+    const bool is_handheld_hid_enabled =
+        applet_resource_holder->handheld_config->is_handheld_hid_enabled;
+    const bool is_force_handheld_style_vibration =
+        applet_resource_holder->handheld_config->is_force_handheld_style_vibration;
+
+    if (!is_handheld_hid_enabled && is_force_handheld_style_vibration) {
+        // TODO
+    }
+
+    // TODO: This function isn't accurate. It's supposed to get 5 abstracted pads from the
+    // NpadAbstractPropertiesHandler but this handler isn't fully implemented yet
+    IAbstractedPad abstracted_pad{};
+    const auto npad_id = properties_handler->GetNpadId();
+    abstracted_pad.xcd_handle = hid_core->GetEmulatedController(npad_id);
+    abstracted_pad.internal_flags.is_connected.Assign(abstracted_pad.xcd_handle->IsConnected());
+
+    if (abstracted_pad.internal_flags.is_connected) {
+        left_vibration_device->Mount(abstracted_pad, Core::HID::DeviceIndex::Left,
+                                     vibration_handler);
+        right_vibration_device->Mount(abstracted_pad, Core::HID::DeviceIndex::Right,
+                                      vibration_handler);
+        gc_vibration_device->Mount(abstracted_pad, 0, vibration_handler);
+        gc_vibration_device->Mount(abstracted_pad, 0, vibration_handler);
+        n64_vibration_device->Mount(abstracted_pad, vibration_handler);
+        return;
+    }
+
+    left_vibration_device->Unmount();
+    right_vibration_device->Unmount();
+    gc_vibration_device->Unmount();
+    gc_vibration_device->Unmount();
+    n64_vibration_device->Unmount();
+}
+} // namespace Service::HID

src/hid_core/resources/abstracted_pad/abstract_vibration_handler.h

@@ -0,0 +1,59 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <span>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+
+namespace Core::HID {
+class HIDCore;
+}
+
+namespace Service::HID {
+struct AppletResourceHolder;
+class NpadAbstractedPadHolder;
+class NpadAbstractPropertiesHandler;
+class NpadGcVibrationDevice;
+class NpadVibrationDevice;
+class NpadN64VibrationDevice;
+class NpadVibration;
+
+/// Keeps track of battery levels and updates npad battery shared memory values
+class NpadAbstractVibrationHandler final {
+public:
+    explicit NpadAbstractVibrationHandler();
+    ~NpadAbstractVibrationHandler();
+
+    void SetAbstractPadHolder(NpadAbstractedPadHolder* holder);
+    void SetAppletResource(AppletResourceHolder* applet_resource);
+    void SetPropertiesHandler(NpadAbstractPropertiesHandler* handler);
+    void SetVibrationHandler(NpadVibration* handler);
+    void SetHidCore(Core::HID::HIDCore* core);
+
+    void SetN64Vibration(NpadN64VibrationDevice* n64_device);
+    void SetVibration(NpadVibrationDevice* left_device, NpadVibrationDevice* right_device);
+    void SetGcVibration(NpadGcVibrationDevice* gc_device);
+
+    Result IncrementRefCounter();
+    Result DecrementRefCounter();
+
+    void UpdateVibrationState();
+
+private:
+    AppletResourceHolder* applet_resource_holder{nullptr};
+    NpadAbstractedPadHolder* abstract_pad_holder{nullptr};
+    NpadAbstractPropertiesHandler* properties_handler{nullptr};
+    Core::HID::HIDCore* hid_core{nullptr};
+
+    NpadN64VibrationDevice* n64_vibration_device{nullptr};
+    NpadVibrationDevice* left_vibration_device{};
+    NpadVibrationDevice* right_vibration_device{};
+    NpadGcVibrationDevice* gc_vibration_device{nullptr};
+    NpadVibration* vibration_handler{nullptr};
+    s32 ref_counter{};
+};
+} // namespace Service::HID

src/hid_core/resources/applet_resource.cpp

@@ -0,0 +1,349 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/core.h"
+#include "core/hle/kernel/k_shared_memory.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+AppletResource::AppletResource(Core::System& system_) : system{system_} {}
+
+AppletResource::~AppletResource() = default;
+
+Result AppletResource::CreateAppletResource(u64 aruid) {
+    const u64 index = GetIndexFromAruid(aruid);
+
+    if (index >= AruidIndexMax) {
+        return ResultAruidNotRegistered;
+    }
+
+    if (data[index].flag.is_assigned) {
+        return ResultAruidAlreadyRegistered;
+    }
+
+    auto& shared_memory = shared_memory_holder[index];
+    if (!shared_memory.IsMapped()) {
+        const Result result = shared_memory.Initialize(system);
+        if (result.IsError()) {
+            return result;
+        }
+        if (shared_memory.GetAddress() == nullptr) {
+            shared_memory.Finalize();
+            return ResultSharedMemoryNotInitialized;
+        }
+    }
+
+    auto* shared_memory_format = shared_memory.GetAddress();
+    if (shared_memory_format != nullptr) {
+        shared_memory_format->Initialize();
+    }
+
+    data[index].shared_memory_format = shared_memory_format;
+    data[index].flag.is_assigned.Assign(true);
+    // TODO: InitializeSixAxisControllerConfig(false);
+    active_aruid = aruid;
+    return ResultSuccess;
+}
+
+Result AppletResource::RegisterAppletResourceUserId(u64 aruid, bool enable_input) {
+    const u64 index = GetIndexFromAruid(aruid);
+
+    if (index < AruidIndexMax) {
+        return ResultAruidAlreadyRegistered;
+    }
+
+    std::size_t data_index = AruidIndexMax;
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        if (!data[i].flag.is_initialized) {
+            data_index = i;
+            break;
+        }
+    }
+
+    if (data_index == AruidIndexMax) {
+        return ResultAruidNoAvailableEntries;
+    }
+
+    AruidData& aruid_data = data[data_index];
+
+    aruid_data.aruid = aruid;
+    aruid_data.flag.is_initialized.Assign(true);
+    if (enable_input) {
+        aruid_data.flag.enable_pad_input.Assign(true);
+        aruid_data.flag.enable_six_axis_sensor.Assign(true);
+        aruid_data.flag.bit_18.Assign(true);
+        aruid_data.flag.enable_touchscreen.Assign(true);
+    }
+
+    data_index = AruidIndexMax;
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        if (registration_list.flag[i] == RegistrationStatus::Initialized) {
+            if (registration_list.aruid[i] != aruid) {
+                continue;
+            }
+            data_index = i;
+            break;
+        }
+        // TODO: Don't Handle pending delete here
+        if (registration_list.flag[i] == RegistrationStatus::None ||
+            registration_list.flag[i] == RegistrationStatus::PendingDelete) {
+            data_index = i;
+            break;
+        }
+    }
+
+    if (data_index == AruidIndexMax) {
+        return ResultSuccess;
+    }
+
+    registration_list.flag[data_index] = RegistrationStatus::Initialized;
+    registration_list.aruid[data_index] = aruid;
+
+    return ResultSuccess;
+}
+
+void AppletResource::UnregisterAppletResourceUserId(u64 aruid) {
+    const u64 index = GetIndexFromAruid(aruid);
+
+    if (index >= AruidIndexMax) {
+        return;
+    }
+
+    FreeAppletResourceId(aruid);
+    DestroySevenSixAxisTransferMemory();
+    data[index].flag.raw = 0;
+    data[index].aruid = 0;
+
+    registration_list.flag[index] = RegistrationStatus::PendingDelete;
+
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        if (registration_list.flag[i] == RegistrationStatus::Initialized) {
+            active_aruid = registration_list.aruid[i];
+        }
+    }
+}
+
+void AppletResource::FreeAppletResourceId(u64 aruid) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return;
+    }
+
+    auto& aruid_data = data[index];
+    if (aruid_data.flag.is_assigned) {
+        aruid_data.shared_memory_format = nullptr;
+        aruid_data.flag.is_assigned.Assign(false);
+        shared_memory_holder[index].Finalize();
+    }
+}
+
+u64 AppletResource::GetActiveAruid() {
+    return active_aruid;
+}
+
+Result AppletResource::GetSharedMemoryHandle(Kernel::KSharedMemory** out_handle, u64 aruid) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return ResultAruidNotRegistered;
+    }
+
+    *out_handle = shared_memory_holder[index].GetHandle();
+    return ResultSuccess;
+}
+
+Result AppletResource::GetSharedMemoryFormat(SharedMemoryFormat** out_shared_memory_format,
+                                             u64 aruid) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return ResultAruidNotRegistered;
+    }
+
+    *out_shared_memory_format = data[index].shared_memory_format;
+    return ResultSuccess;
+}
+
+AruidData* AppletResource::GetAruidData(u64 aruid) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index == AruidIndexMax) {
+        return nullptr;
+    }
+    return &data[aruid_index];
+}
+
+AruidData* AppletResource::GetAruidDataByIndex(std::size_t aruid_index) {
+    return &data[aruid_index];
+}
+
+bool AppletResource::IsVibrationAruidActive(u64 aruid) const {
+    return aruid == 0 || aruid == active_vibration_aruid;
+}
+
+u64 AppletResource::GetIndexFromAruid(u64 aruid) {
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        if (registration_list.flag[i] == RegistrationStatus::Initialized &&
+            registration_list.aruid[i] == aruid) {
+            return i;
+        }
+    }
+    return AruidIndexMax;
+}
+
+Result AppletResource::DestroySevenSixAxisTransferMemory() {
+    // TODO
+    return ResultSuccess;
+}
+
+void AppletResource::EnableInput(u64 aruid, bool is_enabled) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return;
+    }
+
+    data[index].flag.enable_pad_input.Assign(is_enabled);
+    data[index].flag.enable_touchscreen.Assign(is_enabled);
+}
+
+bool AppletResource::SetAruidValidForVibration(u64 aruid, bool is_enabled) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return false;
+    }
+
+    if (!is_enabled && aruid == active_vibration_aruid) {
+        active_vibration_aruid = SystemAruid;
+        return true;
+    }
+
+    if (is_enabled && aruid != active_vibration_aruid) {
+        active_vibration_aruid = aruid;
+        return true;
+    }
+
+    return false;
+}
+
+void AppletResource::EnableSixAxisSensor(u64 aruid, bool is_enabled) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return;
+    }
+
+    data[index].flag.enable_six_axis_sensor.Assign(is_enabled);
+}
+
+void AppletResource::EnablePadInput(u64 aruid, bool is_enabled) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return;
+    }
+
+    data[index].flag.enable_pad_input.Assign(is_enabled);
+}
+
+void AppletResource::EnableTouchScreen(u64 aruid, bool is_enabled) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return;
+    }
+
+    data[index].flag.enable_touchscreen.Assign(is_enabled);
+}
+
+void AppletResource::SetIsPalmaConnectable(u64 aruid, bool is_connectable) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return;
+    }
+
+    data[index].flag.is_palma_connectable.Assign(is_connectable);
+}
+
+void AppletResource::EnablePalmaBoostMode(u64 aruid, bool is_enabled) {
+    const u64 index = GetIndexFromAruid(aruid);
+    if (index >= AruidIndexMax) {
+        return;
+    }
+
+    data[index].flag.enable_palma_boost_mode.Assign(is_enabled);
+}
+
+Result AppletResource::RegisterCoreAppletResource() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultAppletResourceOverflow;
+    }
+    if (ref_counter == 0) {
+        const u64 index = GetIndexFromAruid(0);
+        if (index < AruidIndexMax) {
+            return ResultAruidAlreadyRegistered;
+        }
+
+        std::size_t data_index = AruidIndexMax;
+        for (std::size_t i = 0; i < AruidIndexMax; i++) {
+            if (!data[i].flag.is_initialized) {
+                data_index = i;
+                break;
+            }
+        }
+
+        if (data_index == AruidIndexMax) {
+            return ResultAruidNoAvailableEntries;
+        }
+
+        AruidData& aruid_data = data[data_index];
+
+        aruid_data.aruid = 0;
+        aruid_data.flag.is_initialized.Assign(true);
+        aruid_data.flag.enable_pad_input.Assign(true);
+        aruid_data.flag.enable_six_axis_sensor.Assign(true);
+        aruid_data.flag.bit_18.Assign(true);
+        aruid_data.flag.enable_touchscreen.Assign(true);
+
+        data_index = AruidIndexMax;
+        for (std::size_t i = 0; i < AruidIndexMax; i++) {
+            if (registration_list.flag[i] == RegistrationStatus::Initialized) {
+                if (registration_list.aruid[i] != 0) {
+                    continue;
+                }
+                data_index = i;
+                break;
+            }
+            if (registration_list.flag[i] == RegistrationStatus::None) {
+                data_index = i;
+                break;
+            }
+        }
+
+        Result result = ResultSuccess;
+
+        if (data_index == AruidIndexMax) {
+            result = CreateAppletResource(0);
+        } else {
+            registration_list.flag[data_index] = RegistrationStatus::Initialized;
+            registration_list.aruid[data_index] = 0;
+        }
+
+        if (result.IsError()) {
+            UnregisterAppletResourceUserId(0);
+            return result;
+        }
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result AppletResource::UnregisterCoreAppletResource() {
+    if (ref_counter == 0) {
+        return ResultAppletResourceNotInitialized;
+    }
+
+    if (--ref_counter == 0) {
+        UnregisterAppletResourceUserId(0);
+    }
+
+    return ResultSuccess;
+}
+
+} // namespace Service::HID

src/hid_core/resources/applet_resource.h

@@ -0,0 +1,126 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+#include <mutex>
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/resources/shared_memory_holder.h"
+
+namespace Core {
+class System;
+} // namespace Core
+
+namespace Kernel {
+class KEvent;
+class KSharedMemory;
+} // namespace Kernel
+
+namespace Service::HID {
+struct SharedMemoryFormat;
+class AppletResource;
+class NPadResource;
+
+static constexpr std::size_t AruidIndexMax = 0x20;
+static constexpr u64 SystemAruid = 0;
+
+enum class RegistrationStatus : u32 {
+    None,
+    Initialized,
+    PendingDelete,
+};
+
+struct DataStatusFlag {
+    union {
+        u32 raw{};
+
+        BitField<0, 1, u32> is_initialized;
+        BitField<1, 1, u32> is_assigned;
+        BitField<16, 1, u32> enable_pad_input;
+        BitField<17, 1, u32> enable_six_axis_sensor;
+        BitField<18, 1, u32> bit_18;
+        BitField<19, 1, u32> is_palma_connectable;
+        BitField<20, 1, u32> enable_palma_boost_mode;
+        BitField<21, 1, u32> enable_touchscreen;
+    };
+};
+
+struct AruidRegisterList {
+    std::array<RegistrationStatus, AruidIndexMax> flag{};
+    std::array<u64, AruidIndexMax> aruid{};
+};
+static_assert(sizeof(AruidRegisterList) == 0x180, "AruidRegisterList is an invalid size");
+
+struct AruidData {
+    DataStatusFlag flag{};
+    u64 aruid{};
+    SharedMemoryFormat* shared_memory_format{nullptr};
+};
+
+struct HandheldConfig {
+    bool is_handheld_hid_enabled;
+    bool is_force_handheld;
+    bool is_joycon_rail_enabled;
+    bool is_force_handheld_style_vibration;
+};
+static_assert(sizeof(HandheldConfig) == 0x4, "HandheldConfig is an invalid size");
+
+struct AppletResourceHolder {
+    std::shared_ptr<AppletResource> applet_resource{nullptr};
+    std::recursive_mutex* shared_mutex{nullptr};
+    NPadResource* shared_npad_resource{nullptr};
+    std::shared_ptr<HandheldConfig> handheld_config{nullptr};
+    Kernel::KEvent* input_event{nullptr};
+    std::mutex* input_mutex{nullptr};
+};
+
+class AppletResource {
+public:
+    explicit AppletResource(Core::System& system_);
+    ~AppletResource();
+
+    Result CreateAppletResource(u64 aruid);
+
+    Result RegisterAppletResourceUserId(u64 aruid, bool enable_input);
+    void UnregisterAppletResourceUserId(u64 aruid);
+
+    void FreeAppletResourceId(u64 aruid);
+
+    u64 GetActiveAruid();
+    Result GetSharedMemoryHandle(Kernel::KSharedMemory** out_handle, u64 aruid);
+    Result GetSharedMemoryFormat(SharedMemoryFormat** out_shared_memory_format, u64 aruid);
+    AruidData* GetAruidData(u64 aruid);
+    AruidData* GetAruidDataByIndex(std::size_t aruid_index);
+
+    bool IsVibrationAruidActive(u64 aruid) const;
+
+    u64 GetIndexFromAruid(u64 aruid);
+
+    Result DestroySevenSixAxisTransferMemory();
+
+    void EnableInput(u64 aruid, bool is_enabled);
+    bool SetAruidValidForVibration(u64 aruid, bool is_enabled);
+    void EnableSixAxisSensor(u64 aruid, bool is_enabled);
+    void EnablePadInput(u64 aruid, bool is_enabled);
+    void EnableTouchScreen(u64 aruid, bool is_enabled);
+    void SetIsPalmaConnectable(u64 aruid, bool is_connectable);
+    void EnablePalmaBoostMode(u64 aruid, bool is_enabled);
+
+    Result RegisterCoreAppletResource();
+    Result UnregisterCoreAppletResource();
+
+private:
+    u64 active_aruid{};
+    AruidRegisterList registration_list{};
+    std::array<AruidData, AruidIndexMax> data{};
+    std::array<SharedMemoryHolder, AruidIndexMax> shared_memory_holder{};
+    s32 ref_counter{};
+    u64 active_vibration_aruid;
+
+    Core::System& system;
+};
+} // namespace Service::HID

src/hid_core/resources/controller_base.cpp

@@ -0,0 +1,41 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "hid_core/resources/controller_base.h"
+
+namespace Service::HID {
+
+ControllerBase::ControllerBase(Core::HID::HIDCore& hid_core_) : hid_core(hid_core_) {}
+ControllerBase::~ControllerBase() = default;
+
+Result ControllerBase::Activate() {
+    if (is_activated) {
+        return ResultSuccess;
+    }
+    is_activated = true;
+    OnInit();
+    return ResultSuccess;
+}
+
+Result ControllerBase::Activate(u64 aruid) {
+    return Activate();
+}
+
+void ControllerBase::DeactivateController() {
+    if (is_activated) {
+        OnRelease();
+    }
+    is_activated = false;
+}
+
+bool ControllerBase::IsControllerActivated() const {
+    return is_activated;
+}
+
+void ControllerBase::SetAppletResource(std::shared_ptr<AppletResource> resource,
+                                       std::recursive_mutex* resource_mutex) {
+    applet_resource = resource;
+    shared_mutex = resource_mutex;
+}
+
+} // namespace Service::HID

src/hid_core/resources/controller_base.h

@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/resources/applet_resource.h"
+
+namespace Core::Timing {
+class CoreTiming;
+}
+
+namespace Core::HID {
+class HIDCore;
+} // namespace Core::HID
+
+namespace Service::HID {
+class ControllerBase {
+public:
+    explicit ControllerBase(Core::HID::HIDCore& hid_core_);
+    virtual ~ControllerBase();
+
+    // Called when the controller is initialized
+    virtual void OnInit() = 0;
+
+    // When the controller is released
+    virtual void OnRelease() = 0;
+
+    // When the controller is requesting an update for the shared memory
+    virtual void OnUpdate(const Core::Timing::CoreTiming& core_timing) = 0;
+
+    // When the controller is requesting a motion update for the shared memory
+    virtual void OnMotionUpdate(const Core::Timing::CoreTiming& core_timing) {}
+
+    Result Activate();
+    Result Activate(u64 aruid);
+
+    void DeactivateController();
+
+    bool IsControllerActivated() const;
+
+    void SetAppletResource(std::shared_ptr<AppletResource> resource,
+                           std::recursive_mutex* resource_mutex);
+
+protected:
+    bool is_activated{false};
+    std::shared_ptr<AppletResource> applet_resource{nullptr};
+    std::recursive_mutex* shared_mutex{nullptr};
+
+    Core::HID::HIDCore& hid_core;
+};
+} // namespace Service::HID

src/hid_core/resources/debug_pad/debug_pad.cpp

@@ -0,0 +1,59 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/settings.h"
+#include "core/core_timing.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/debug_pad/debug_pad.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+DebugPad::DebugPad(Core::HID::HIDCore& hid_core_) : ControllerBase{hid_core_} {
+    controller = hid_core.GetEmulatedController(Core::HID::NpadIdType::Other);
+}
+
+DebugPad::~DebugPad() = default;
+
+void DebugPad::OnInit() {}
+
+void DebugPad::OnRelease() {}
+
+void DebugPad::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
+    std::scoped_lock shared_lock{*shared_mutex};
+    const u64 aruid = applet_resource->GetActiveAruid();
+    auto* data = applet_resource->GetAruidData(aruid);
+
+    if (data == nullptr || !data->flag.is_assigned) {
+        return;
+    }
+
+    DebugPadSharedMemoryFormat& shared_memory = data->shared_memory_format->debug_pad;
+
+    if (!IsControllerActivated()) {
+        shared_memory.debug_pad_lifo.buffer_count = 0;
+        shared_memory.debug_pad_lifo.buffer_tail = 0;
+        return;
+    }
+
+    const auto& last_entry = shared_memory.debug_pad_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
+
+    if (Settings::values.debug_pad_enabled) {
+        next_state.attribute.connected.Assign(1);
+
+        const auto& button_state = controller->GetDebugPadButtons();
+        const auto& stick_state = controller->GetSticks();
+
+        next_state.pad_state = button_state;
+        next_state.l_stick = stick_state.left;
+        next_state.r_stick = stick_state.right;
+    }
+
+    shared_memory.debug_pad_lifo.WriteNextEntry(next_state);
+}
+
+} // namespace Service::HID

src/hid_core/resources/debug_pad/debug_pad.h

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "hid_core/resources/controller_base.h"
+#include "hid_core/resources/debug_pad/debug_pad_types.h"
+
+namespace Core::HID {
+class HIDCore;
+class EmulatedController;
+} // namespace Core::HID
+
+namespace Core::Timing {
+class CoreTiming;
+}
+
+namespace Service::HID {
+class DebugPad final : public ControllerBase {
+public:
+    explicit DebugPad(Core::HID::HIDCore& hid_core_);
+    ~DebugPad() override;
+
+    // Called when the controller is initialized
+    void OnInit() override;
+
+    // When the controller is released
+    void OnRelease() override;
+
+    // When the controller is requesting an update for the shared memory
+    void OnUpdate(const Core::Timing::CoreTiming& core_timing) override;
+
+private:
+    DebugPadState next_state{};
+    Core::HID::EmulatedController* controller = nullptr;
+};
+} // namespace Service::HID

src/hid_core/resources/debug_pad/debug_pad_types.h

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+
+// This is nn::hid::DebugPadAttribute
+struct DebugPadAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> connected;
+    };
+};
+static_assert(sizeof(DebugPadAttribute) == 0x4, "DebugPadAttribute is an invalid size");
+
+// 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(DebugPadState) == 0x20, "DebugPadState is an invalid state");
+
+} // namespace Service::HID

src/hid_core/resources/digitizer/digitizer.cpp

@@ -0,0 +1,35 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core_timing.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/digitizer/digitizer.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+Digitizer::Digitizer(Core::HID::HIDCore& hid_core_) : ControllerBase{hid_core_} {}
+
+Digitizer::~Digitizer() = default;
+
+void Digitizer::OnInit() {}
+
+void Digitizer::OnRelease() {}
+
+void Digitizer::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
+    std::scoped_lock shared_lock{*shared_mutex};
+    const u64 aruid = applet_resource->GetActiveAruid();
+    auto* data = applet_resource->GetAruidData(aruid);
+
+    if (data == nullptr || !data->flag.is_assigned) {
+        return;
+    }
+
+    auto& header = data->shared_memory_format->digitizer.header;
+    header.timestamp = core_timing.GetGlobalTimeNs().count();
+    header.total_entry_count = 17;
+    header.entry_count = 0;
+    header.last_entry_index = 0;
+}
+
+} // namespace Service::HID

src/hid_core/resources/digitizer/digitizer.h

@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "hid_core/resources/controller_base.h"
+
+namespace Service::HID {
+
+class Digitizer final : public ControllerBase {
+public:
+    explicit Digitizer(Core::HID::HIDCore& hid_core_);
+    ~Digitizer() override;
+
+    // Called when the controller is initialized
+    void OnInit() override;
+
+    // When the controller is released
+    void OnRelease() override;
+
+    // When the controller is requesting an update for the shared memory
+    void OnUpdate(const Core::Timing::CoreTiming& core_timing) override;
+};
+} // namespace Service::HID

src/hid_core/resources/hid_firmware_settings.cpp

@@ -0,0 +1,120 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/set/system_settings_server.h"
+#include "core/hle/service/sm/sm.h"
+#include "hid_core/resources/hid_firmware_settings.h"
+
+namespace Service::HID {
+
+HidFirmwareSettings::HidFirmwareSettings(Core::System& system) {
+    m_set_sys =
+        system.ServiceManager().GetService<Service::Set::ISystemSettingsServer>("set:sys", true);
+    LoadSettings(true);
+}
+
+void HidFirmwareSettings::Reload() {
+    LoadSettings(true);
+}
+
+void HidFirmwareSettings::LoadSettings(bool reload_config) {
+    if (is_initialized && !reload_config) {
+        return;
+    }
+
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_debug_pad_enabled, "hid_debug",
+                                              "enables_debugpad");
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_device_managed, "hid_debug", "manages_devices");
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_touch_i2c_managed, "hid_debug",
+                                              "manages_touch_ic_i2c");
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_future_devices_emulated, "hid_debug",
+                                              "emulate_future_device");
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_mcu_hardware_error_emulated, "hid_debug",
+                                              "emulate_mcu_hardware_error");
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_rail_enabled, "hid_debug", "enables_rail");
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_firmware_update_failure_emulated, "hid_debug",
+                                              "emulate_firmware_update_failure");
+    is_firmware_update_failure = {};
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_ble_disabled, "hid_debug", "ble_disabled");
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_dscale_disabled, "hid_debug", "dscale_disabled");
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_handheld_forced, "hid_debug", "force_handheld");
+    features_per_id_disabled = {};
+    m_set_sys->GetSettingsItemValueImpl<bool>(is_touch_firmware_auto_update_disabled, "hid_debug",
+                                              "touch_firmware_auto_update_disabled");
+
+    bool has_rail_interface{};
+    bool has_sio_mcu{};
+    m_set_sys->GetSettingsItemValueImpl<bool>(has_rail_interface, "hid", "has_rail_interface");
+    m_set_sys->GetSettingsItemValueImpl<bool>(has_sio_mcu, "hid", "has_sio_mcu");
+    platform_config.has_rail_interface.Assign(has_rail_interface);
+    platform_config.has_sio_mcu.Assign(has_sio_mcu);
+
+    is_initialized = true;
+}
+
+bool HidFirmwareSettings::IsDebugPadEnabled() {
+    LoadSettings(false);
+    return is_debug_pad_enabled;
+}
+
+bool HidFirmwareSettings::IsDeviceManaged() {
+    LoadSettings(false);
+    return is_device_managed;
+}
+
+bool HidFirmwareSettings::IsEmulateFutureDevice() {
+    LoadSettings(false);
+    return is_future_devices_emulated;
+}
+
+bool HidFirmwareSettings::IsTouchI2cManaged() {
+    LoadSettings(false);
+    return is_touch_i2c_managed;
+}
+
+bool HidFirmwareSettings::IsHandheldForced() {
+    LoadSettings(false);
+    return is_handheld_forced;
+}
+
+bool HidFirmwareSettings::IsRailEnabled() {
+    LoadSettings(false);
+    return is_rail_enabled;
+}
+
+bool HidFirmwareSettings::IsHardwareErrorEmulated() {
+    LoadSettings(false);
+    return is_mcu_hardware_error_emulated;
+}
+
+bool HidFirmwareSettings::IsBleDisabled() {
+    LoadSettings(false);
+    return is_ble_disabled;
+}
+
+bool HidFirmwareSettings::IsDscaleDisabled() {
+    LoadSettings(false);
+    return is_dscale_disabled;
+}
+
+bool HidFirmwareSettings::IsTouchAutoUpdateDisabled() {
+    LoadSettings(false);
+    return is_touch_firmware_auto_update_disabled;
+}
+
+HidFirmwareSettings::FirmwareSetting HidFirmwareSettings::GetFirmwareUpdateFailure() {
+    LoadSettings(false);
+    return is_firmware_update_failure;
+}
+
+HidFirmwareSettings::FeaturesPerId HidFirmwareSettings::FeaturesDisabledPerId() {
+    LoadSettings(false);
+    return features_per_id_disabled;
+}
+
+Set::PlatformConfig HidFirmwareSettings::GetPlatformConfig() {
+    LoadSettings(false);
+    return platform_config;
+}
+
+} // namespace Service::HID

src/hid_core/resources/hid_firmware_settings.h

@@ -0,0 +1,67 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/service/set/settings_types.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::Set {
+class ISystemSettingsServer;
+}
+
+namespace Service::HID {
+
+/// Loads firmware config from nn::settings::fwdbg
+class HidFirmwareSettings {
+public:
+    using FirmwareSetting = std::array<u8, 4>;
+    using FeaturesPerId = std::array<bool, 0xA8>;
+
+    HidFirmwareSettings(Core::System& system);
+
+    void Reload();
+    void LoadSettings(bool reload_config);
+
+    bool IsDebugPadEnabled();
+    bool IsDeviceManaged();
+    bool IsEmulateFutureDevice();
+    bool IsTouchI2cManaged();
+    bool IsHandheldForced();
+    bool IsRailEnabled();
+    bool IsHardwareErrorEmulated();
+    bool IsBleDisabled();
+    bool IsDscaleDisabled();
+    bool IsTouchAutoUpdateDisabled();
+
+    FirmwareSetting GetFirmwareUpdateFailure();
+    FeaturesPerId FeaturesDisabledPerId();
+    Set::PlatformConfig GetPlatformConfig();
+
+private:
+    bool is_initialized{};
+
+    // Debug settings
+    bool is_debug_pad_enabled{};
+    bool is_device_managed{};
+    bool is_touch_i2c_managed{};
+    bool is_future_devices_emulated{};
+    bool is_mcu_hardware_error_emulated{};
+    bool is_rail_enabled{};
+    bool is_firmware_update_failure_emulated{};
+    bool is_ble_disabled{};
+    bool is_dscale_disabled{};
+    bool is_handheld_forced{};
+    bool is_touch_firmware_auto_update_disabled{};
+    FirmwareSetting is_firmware_update_failure{};
+    FeaturesPerId features_per_id_disabled{};
+    Set::PlatformConfig platform_config{};
+
+    std::shared_ptr<Service::Set::ISystemSettingsServer> m_set_sys;
+};
+
+} // namespace Service::HID

src/hid_core/resources/irs_ring_lifo.h

@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+
+namespace Service::IRS {
+
+template <typename State, std::size_t max_buffer_size>
+struct Lifo {
+    s64 sampling_number{};
+    s64 buffer_count{};
+    std::array<State, max_buffer_size> entries{};
+
+    const State& ReadCurrentEntry() const {
+        return entries[GetBufferTail()];
+    }
+
+    const State& ReadPreviousEntry() const {
+        return entries[GetPreviousEntryIndex()];
+    }
+
+    s64 GetBufferTail() const {
+        return sampling_number % max_buffer_size;
+    }
+
+    std::size_t GetPreviousEntryIndex() const {
+        return static_cast<size_t>((GetBufferTail() + max_buffer_size - 1) % max_buffer_size);
+    }
+
+    std::size_t GetNextEntryIndex() const {
+        return static_cast<size_t>((GetBufferTail() + 1) % max_buffer_size);
+    }
+
+    void WriteNextEntry(const State& new_state) {
+        if (buffer_count < static_cast<s64>(max_buffer_size)) {
+            buffer_count++;
+        }
+        sampling_number++;
+        entries[GetBufferTail()] = new_state;
+    }
+};
+
+} // namespace Service::IRS

src/hid_core/resources/keyboard/keyboard.cpp

@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/settings.h"
+#include "core/core_timing.h"
+#include "hid_core/frontend/emulated_devices.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/keyboard/keyboard.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+Keyboard::Keyboard(Core::HID::HIDCore& hid_core_) : ControllerBase{hid_core_} {
+    emulated_devices = hid_core.GetEmulatedDevices();
+}
+
+Keyboard::~Keyboard() = default;
+
+void Keyboard::OnInit() {}
+
+void Keyboard::OnRelease() {}
+
+void Keyboard::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
+    std::scoped_lock shared_lock{*shared_mutex};
+    const u64 aruid = applet_resource->GetActiveAruid();
+    auto* data = applet_resource->GetAruidData(aruid);
+
+    if (data == nullptr || !data->flag.is_assigned) {
+        return;
+    }
+
+    KeyboardSharedMemoryFormat& shared_memory = data->shared_memory_format->keyboard;
+
+    if (!IsControllerActivated()) {
+        shared_memory.keyboard_lifo.buffer_count = 0;
+        shared_memory.keyboard_lifo.buffer_tail = 0;
+        return;
+    }
+
+    const auto& last_entry = shared_memory.keyboard_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
+
+    if (Settings::values.keyboard_enabled) {
+        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;
+        next_state.attribute.is_connected.Assign(1);
+    }
+
+    shared_memory.keyboard_lifo.WriteNextEntry(next_state);
+}
+
+} // namespace Service::HID

src/hid_core/resources/keyboard/keyboard.h

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "hid_core/resources/controller_base.h"
+#include "hid_core/resources/keyboard/keyboard_types.h"
+
+namespace Core::HID {
+class HIDCore;
+class EmulatedDevices;
+} // namespace Core::HID
+
+namespace Service::HID {
+class Keyboard final : public ControllerBase {
+public:
+    explicit Keyboard(Core::HID::HIDCore& hid_core_);
+    ~Keyboard() override;
+
+    // Called when the controller is initialized
+    void OnInit() override;
+
+    // When the controller is released
+    void OnRelease() override;
+
+    // When the controller is requesting an update for the shared memory
+    void OnUpdate(const Core::Timing::CoreTiming& core_timing) override;
+
+private:
+    KeyboardState next_state{};
+    Core::HID::EmulatedDevices* emulated_devices = nullptr;
+};
+} // namespace Service::HID

src/hid_core/resources/keyboard/keyboard_types.h

@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "hid_core/hid_types.h"
+
+namespace Service::HID {
+
+// This is nn::hid::detail::KeyboardState
+struct KeyboardState {
+    s64 sampling_number{};
+    Core::HID::KeyboardModifier modifier{};
+    Core::HID::KeyboardAttribute attribute{};
+    Core::HID::KeyboardKey key{};
+};
+static_assert(sizeof(KeyboardState) == 0x30, "KeyboardState is an invalid size");
+
+} // namespace Service::HID

src/hid_core/resources/mouse/debug_mouse.cpp

@@ -0,0 +1,64 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core_timing.h"
+#include "core/frontend/emu_window.h"
+#include "hid_core/frontend/emulated_devices.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/mouse/debug_mouse.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+DebugMouse::DebugMouse(Core::HID::HIDCore& hid_core_) : ControllerBase{hid_core_} {
+    emulated_devices = hid_core.GetEmulatedDevices();
+}
+
+DebugMouse::~DebugMouse() = default;
+
+void DebugMouse::OnInit() {}
+void DebugMouse::OnRelease() {}
+
+void DebugMouse::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
+    std::scoped_lock shared_lock{*shared_mutex};
+    const u64 aruid = applet_resource->GetActiveAruid();
+    auto* data = applet_resource->GetAruidData(aruid);
+
+    if (data == nullptr || !data->flag.is_assigned) {
+        return;
+    }
+
+    MouseSharedMemoryFormat& shared_memory = data->shared_memory_format->debug_mouse;
+
+    if (!IsControllerActivated()) {
+        shared_memory.mouse_lifo.buffer_count = 0;
+        shared_memory.mouse_lifo.buffer_tail = 0;
+        return;
+    }
+
+    next_state = {};
+
+    const auto& last_entry = shared_memory.mouse_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
+
+    if (Settings::values.mouse_enabled) {
+        const auto& mouse_button_state = emulated_devices->GetMouseButtons();
+        const auto& mouse_position_state = emulated_devices->GetMousePosition();
+        const auto& mouse_wheel_state = emulated_devices->GetMouseWheel();
+        next_state.attribute.is_connected.Assign(1);
+        next_state.x = static_cast<s32>(mouse_position_state.x * Layout::ScreenUndocked::Width);
+        next_state.y = static_cast<s32>(mouse_position_state.y * Layout::ScreenUndocked::Height);
+        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_wheel_state.x - last_mouse_wheel_state.x;
+        next_state.delta_wheel_y = mouse_wheel_state.y - last_mouse_wheel_state.y;
+
+        last_mouse_wheel_state = mouse_wheel_state;
+        next_state.button = mouse_button_state;
+    }
+
+    shared_memory.mouse_lifo.WriteNextEntry(next_state);
+}
+
+} // namespace Service::HID

src/hid_core/resources/mouse/debug_mouse.h

@@ -0,0 +1,34 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/controller_base.h"
+
+namespace Core::HID {
+class HIDCore;
+class EmulatedDevices;
+} // namespace Core::HID
+
+namespace Service::HID {
+class DebugMouse final : public ControllerBase {
+public:
+    explicit DebugMouse(Core::HID::HIDCore& hid_core_);
+    ~DebugMouse() override;
+
+    // Called when the controller is initialized
+    void OnInit() override;
+
+    // When the controller is released
+    void OnRelease() override;
+
+    // When the controller is requesting an update for the shared memory
+    void OnUpdate(const Core::Timing::CoreTiming& core_timing) override;
+
+private:
+    Core::HID::MouseState next_state{};
+    Core::HID::AnalogStickState last_mouse_wheel_state{};
+    Core::HID::EmulatedDevices* emulated_devices = nullptr;
+};
+} // namespace Service::HID

src/hid_core/resources/mouse/mouse.cpp

@@ -0,0 +1,64 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core_timing.h"
+#include "core/frontend/emu_window.h"
+#include "hid_core/frontend/emulated_devices.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/mouse/mouse.h"
+#include "hid_core/resources/shared_memory_format.h"
+
+namespace Service::HID {
+
+Mouse::Mouse(Core::HID::HIDCore& hid_core_) : ControllerBase{hid_core_} {
+    emulated_devices = hid_core.GetEmulatedDevices();
+}
+
+Mouse::~Mouse() = default;
+
+void Mouse::OnInit() {}
+void Mouse::OnRelease() {}
+
+void Mouse::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
+    std::scoped_lock shared_lock{*shared_mutex};
+    const u64 aruid = applet_resource->GetActiveAruid();
+    auto* data = applet_resource->GetAruidData(aruid);
+
+    if (data == nullptr || !data->flag.is_assigned) {
+        return;
+    }
+
+    MouseSharedMemoryFormat& shared_memory = data->shared_memory_format->mouse;
+
+    if (!IsControllerActivated()) {
+        shared_memory.mouse_lifo.buffer_count = 0;
+        shared_memory.mouse_lifo.buffer_tail = 0;
+        return;
+    }
+
+    next_state = {};
+
+    const auto& last_entry = shared_memory.mouse_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
+
+    if (Settings::values.mouse_enabled) {
+        const auto& mouse_button_state = emulated_devices->GetMouseButtons();
+        const auto& mouse_position_state = emulated_devices->GetMousePosition();
+        const auto& mouse_wheel_state = emulated_devices->GetMouseWheel();
+        next_state.attribute.is_connected.Assign(1);
+        next_state.x = static_cast<s32>(mouse_position_state.x * Layout::ScreenUndocked::Width);
+        next_state.y = static_cast<s32>(mouse_position_state.y * Layout::ScreenUndocked::Height);
+        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_wheel_state.x - last_mouse_wheel_state.x;
+        next_state.delta_wheel_y = mouse_wheel_state.y - last_mouse_wheel_state.y;
+
+        last_mouse_wheel_state = mouse_wheel_state;
+        next_state.button = mouse_button_state;
+    }
+
+    shared_memory.mouse_lifo.WriteNextEntry(next_state);
+}
+
+} // namespace Service::HID

src/hid_core/resources/mouse/mouse.h

@@ -0,0 +1,34 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/controller_base.h"
+
+namespace Core::HID {
+class HIDCore;
+class EmulatedDevices;
+} // namespace Core::HID
+
+namespace Service::HID {
+class Mouse final : public ControllerBase {
+public:
+    explicit Mouse(Core::HID::HIDCore& hid_core_);
+    ~Mouse() override;
+
+    // Called when the controller is initialized
+    void OnInit() override;
+
+    // When the controller is released
+    void OnRelease() override;
+
+    // When the controller is requesting an update for the shared memory
+    void OnUpdate(const Core::Timing::CoreTiming& core_timing) override;
+
+private:
+    Core::HID::MouseState next_state{};
+    Core::HID::AnalogStickState last_mouse_wheel_state{};
+    Core::HID::EmulatedDevices* emulated_devices = nullptr;
+};
+} // namespace Service::HID

src/hid_core/resources/mouse/mouse_types.h

@@ -0,0 +1,8 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Service::HID {} // namespace Service::HID

src/hid_core/resources/npad/npad.h

@@ -0,0 +1,215 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <atomic>
+#include <mutex>
+#include <span>
+
+#include "common/common_types.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/abstracted_pad/abstract_pad.h"
+#include "hid_core/resources/controller_base.h"
+#include "hid_core/resources/npad/npad_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+#include "hid_core/resources/npad/npad_vibration.h"
+#include "hid_core/resources/vibration/gc_vibration_device.h"
+#include "hid_core/resources/vibration/n64_vibration_device.h"
+#include "hid_core/resources/vibration/vibration_base.h"
+#include "hid_core/resources/vibration/vibration_device.h"
+
+namespace Core::HID {
+class EmulatedController;
+enum class ControllerTriggerType;
+} // namespace Core::HID
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Service::KernelHelpers {
+class ServiceContext;
+} // namespace Service::KernelHelpers
+
+namespace Service::Set {
+class ISystemSettingsServer;
+}
+
+union Result;
+
+namespace Service::HID {
+class AppletResource;
+struct HandheldConfig;
+struct NpadInternalState;
+struct NpadSixAxisSensorLifo;
+struct NpadSharedMemoryFormat;
+
+class NPad final {
+public:
+    explicit NPad(Core::HID::HIDCore& hid_core_, KernelHelpers::ServiceContext& service_context_);
+    ~NPad();
+
+    Result Activate();
+    Result Activate(u64 aruid);
+
+    Result ActivateNpadResource();
+    Result ActivateNpadResource(u64 aruid);
+
+    void FreeAppletResourceId(u64 aruid);
+
+    // When the controller is requesting an update for the shared memory
+    void OnUpdate(const Core::Timing::CoreTiming& core_timing);
+
+    Result SetSupportedNpadStyleSet(u64 aruid, Core::HID::NpadStyleSet supported_style_set);
+    Result GetSupportedNpadStyleSet(u64 aruid,
+                                    Core::HID::NpadStyleSet& out_supported_style_set) const;
+    Result GetMaskedSupportedNpadStyleSet(u64 aruid,
+                                          Core::HID::NpadStyleSet& out_supported_style_set) const;
+
+    Result SetSupportedNpadIdType(u64 aruid,
+                                  std::span<const Core::HID::NpadIdType> supported_npad_list);
+
+    Result SetNpadJoyHoldType(u64 aruid, NpadJoyHoldType hold_type);
+    Result GetNpadJoyHoldType(u64 aruid, NpadJoyHoldType& out_hold_type) const;
+
+    Result SetNpadHandheldActivationMode(u64 aruid, NpadHandheldActivationMode mode);
+    Result GetNpadHandheldActivationMode(u64 aruid, NpadHandheldActivationMode& out_mode) const;
+
+    bool SetNpadMode(u64 aruid, Core::HID::NpadIdType& new_npad_id, Core::HID::NpadIdType npad_id,
+                     NpadJoyDeviceType npad_device_type, NpadJoyAssignmentMode assignment_mode);
+
+    Result AcquireNpadStyleSetUpdateEventHandle(u64 aruid, Kernel::KReadableEvent** out_event,
+                                                Core::HID::NpadIdType npad_id);
+
+    // Adds a new controller at an index.
+    void AddNewControllerAt(u64 aruid, Core::HID::NpadStyleIndex controller,
+                            Core::HID::NpadIdType npad_id);
+    // Adds a new controller at an index with connection status.
+    void UpdateControllerAt(u64 aruid, Core::HID::NpadStyleIndex controller,
+                            Core::HID::NpadIdType npad_id, bool connected);
+
+    Result DisconnectNpad(u64 aruid, Core::HID::NpadIdType npad_id);
+
+    Result IsFirmwareUpdateAvailableForSixAxisSensor(
+        u64 aruid, const Core::HID::SixAxisSensorHandle& sixaxis_handle,
+        bool& is_firmware_available) const;
+    Result ResetIsSixAxisSensorDeviceNewlyAssigned(
+        u64 aruid, const Core::HID::SixAxisSensorHandle& sixaxis_handle);
+
+    Result IsUnintendedHomeButtonInputProtectionEnabled(bool& out_is_enabled, u64 aruid,
+                                                        Core::HID::NpadIdType npad_id) const;
+    Result EnableUnintendedHomeButtonInputProtection(u64 aruid, Core::HID::NpadIdType npad_id,
+                                                     bool is_enabled);
+
+    void SetNpadAnalogStickUseCenterClamp(u64 aruid, bool is_enabled);
+    void ClearAllConnectedControllers();
+    void DisconnectAllConnectedControllers();
+    void ConnectAllDisconnectedControllers();
+    void ClearAllControllers();
+
+    Result MergeSingleJoyAsDualJoy(u64 aruid, Core::HID::NpadIdType npad_id_1,
+                                   Core::HID::NpadIdType npad_id_2);
+    Result StartLrAssignmentMode(u64 aruid);
+    Result StopLrAssignmentMode(u64 aruid);
+    Result SwapNpadAssignment(u64 aruid, Core::HID::NpadIdType npad_id_1,
+                              Core::HID::NpadIdType npad_id_2);
+
+    // Logical OR for all buttons presses on all controllers
+    // Specifically for cheat engine and other features.
+    Core::HID::NpadButton GetAndResetPressState();
+
+    Result ApplyNpadSystemCommonPolicy(u64 aruid);
+    Result ApplyNpadSystemCommonPolicyFull(u64 aruid);
+    Result ClearNpadSystemCommonPolicy(u64 aruid);
+
+    void SetRevision(u64 aruid, NpadRevision revision);
+    NpadRevision GetRevision(u64 aruid);
+
+    Result RegisterAppletResourceUserId(u64 aruid);
+    void UnregisterAppletResourceUserId(u64 aruid);
+    void SetNpadExternals(std::shared_ptr<AppletResource> resource,
+                          std::recursive_mutex* shared_mutex,
+                          std::shared_ptr<HandheldConfig> handheld_config,
+                          Kernel::KEvent* input_event, std::mutex* input_mutex,
+                          std::shared_ptr<Service::Set::ISystemSettingsServer> settings);
+
+    AppletDetailedUiType GetAppletDetailedUiType(Core::HID::NpadIdType npad_id);
+
+    Result SetNpadCaptureButtonAssignment(u64 aruid, Core::HID::NpadStyleSet npad_style_set,
+                                          Core::HID::NpadButton button_assignment);
+    Result ClearNpadCaptureButtonAssignment(u64 aruid);
+    std::size_t GetNpadCaptureButtonAssignment(std::span<Core::HID::NpadButton> out_list,
+                                               u64 aruid) const;
+
+    Result SetNpadSystemExtStateEnabled(u64 aruid, bool is_enabled);
+
+    Result AssigningSingleOnSlSrPress(u64 aruid, bool is_enabled);
+
+    Result GetLastActiveNpad(Core::HID::NpadIdType& out_npad_id) const;
+
+    NpadVibration* GetVibrationHandler();
+    std::vector<NpadVibrationBase*> GetAllVibrationDevices();
+    NpadVibrationBase* GetVibrationDevice(const Core::HID::VibrationDeviceHandle& handle);
+    NpadN64VibrationDevice* GetN64VibrationDevice(const Core::HID::VibrationDeviceHandle& handle);
+    NpadVibrationDevice* GetNSVibrationDevice(const Core::HID::VibrationDeviceHandle& handle);
+    NpadGcVibrationDevice* GetGcVibrationDevice(const Core::HID::VibrationDeviceHandle& handle);
+
+    void UpdateHandheldAbstractState();
+
+    void EnableAppletToGetInput(u64 aruid);
+
+private:
+    struct NpadControllerData {
+        NpadInternalState* shared_memory = nullptr;
+        Core::HID::EmulatedController* device = nullptr;
+
+        bool is_active{};
+        bool is_connected{};
+
+        // Dual joycons can have only one side connected
+        bool is_dual_left_connected{true};
+        bool is_dual_right_connected{true};
+
+        // Current pad state
+        NPadGenericState npad_pad_state{};
+        NPadGenericState npad_libnx_state{};
+        NpadGcTriggerState npad_trigger_state{};
+        int callback_key{};
+    };
+
+    void ControllerUpdate(Core::HID::ControllerTriggerType type, std::size_t controller_idx);
+    void InitNewlyAddedController(u64 aruid, Core::HID::NpadIdType npad_id);
+    void RequestPadStateUpdate(u64 aruid, Core::HID::NpadIdType npad_id);
+    void WriteEmptyEntry(NpadInternalState* npad);
+
+    NpadControllerData& GetControllerFromHandle(
+        u64 aruid, const Core::HID::SixAxisSensorHandle& device_handle);
+    const NpadControllerData& GetControllerFromHandle(
+        u64 aruid, const Core::HID::SixAxisSensorHandle& device_handle) const;
+    NpadControllerData& GetControllerFromNpadIdType(u64 aruid, Core::HID::NpadIdType npad_id);
+    const NpadControllerData& GetControllerFromNpadIdType(u64 aruid,
+                                                          Core::HID::NpadIdType npad_id) const;
+
+    Core::HID::SixAxisSensorProperties& GetSixaxisProperties(
+        u64 aruid, const Core::HID::SixAxisSensorHandle& device_handle);
+    const Core::HID::SixAxisSensorProperties& GetSixaxisProperties(
+        u64 aruid, const Core::HID::SixAxisSensorHandle& device_handle) const;
+
+    Core::HID::HIDCore& hid_core;
+    KernelHelpers::ServiceContext& service_context;
+
+    s32 ref_counter{};
+    mutable std::mutex mutex;
+    NPadResource npad_resource;
+    AppletResourceHolder applet_resource_holder{};
+    std::array<AbstractPad, MaxSupportedNpadIdTypes> abstracted_pads;
+    NpadVibration vibration_handler{};
+
+    std::atomic<u64> press_state{};
+    std::array<std::array<NpadControllerData, MaxSupportedNpadIdTypes>, AruidIndexMax>
+        controller_data{};
+};
+} // namespace Service::HID

src/hid_core/resources/npad/npad_data.cpp

@@ -0,0 +1,228 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "hid_core/hid_util.h"
+#include "hid_core/resources/npad/npad_data.h"
+
+namespace Service::HID {
+
+NPadData::NPadData() {
+    ClearNpadSystemCommonPolicy();
+}
+
+NPadData::~NPadData() = default;
+
+NpadStatus NPadData::GetNpadStatus() const {
+    return status;
+}
+
+void NPadData::SetNpadAnalogStickUseCenterClamp(bool is_enabled) {
+    status.use_center_clamp.Assign(is_enabled);
+}
+
+bool NPadData::GetNpadAnalogStickUseCenterClamp() const {
+    return status.use_center_clamp.As<bool>();
+}
+
+void NPadData::SetNpadSystemExtStateEnabled(bool is_enabled) {
+    status.system_ext_state.Assign(is_enabled);
+}
+
+bool NPadData::GetNpadSystemExtState() const {
+    return status.system_ext_state.As<bool>();
+}
+
+Result NPadData::SetSupportedNpadIdType(std::span<const Core::HID::NpadIdType> list) {
+    // Note: Real limit is 11. But array size is 10. N's bug?
+    if (list.size() > MaxSupportedNpadIdTypes) {
+        return ResultInvalidArraySize;
+    }
+
+    supported_npad_id_types_count = list.size();
+    memcpy(supported_npad_id_types.data(), list.data(),
+           list.size() * sizeof(Core::HID::NpadIdType));
+
+    return ResultSuccess;
+}
+
+std::size_t NPadData::GetSupportedNpadIdType(std::span<Core::HID::NpadIdType> out_list) const {
+    std::size_t out_size = std::min(supported_npad_id_types_count, out_list.size());
+
+    memcpy(out_list.data(), supported_npad_id_types.data(),
+           out_size * sizeof(Core::HID::NpadIdType));
+
+    return out_size;
+}
+
+bool NPadData::IsNpadIdTypeSupported(Core::HID::NpadIdType npad_id) const {
+    for (std::size_t i = 0; i < supported_npad_id_types_count; i++) {
+        if (supported_npad_id_types[i] == npad_id) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+void NPadData::SetNpadSystemCommonPolicy(bool is_full_policy) {
+    supported_npad_style_set = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::JoyDual |
+                               Core::HID::NpadStyleSet::SystemExt | Core::HID::NpadStyleSet::System;
+    handheld_activation_mode = NpadHandheldActivationMode::Dual;
+
+    status.is_supported_styleset_set.Assign(true);
+    status.is_hold_type_set.Assign(true);
+    status.lr_assignment_mode.Assign(false);
+    status.is_policy.Assign(true);
+    if (is_full_policy) {
+        status.is_full_policy.Assign(true);
+    }
+
+    supported_npad_id_types_count = 10;
+    supported_npad_id_types[0] = Core::HID::NpadIdType::Player1;
+    supported_npad_id_types[1] = Core::HID::NpadIdType::Player2;
+    supported_npad_id_types[2] = Core::HID::NpadIdType::Player3;
+    supported_npad_id_types[3] = Core::HID::NpadIdType::Player4;
+    supported_npad_id_types[4] = Core::HID::NpadIdType::Player5;
+    supported_npad_id_types[5] = Core::HID::NpadIdType::Player6;
+    supported_npad_id_types[6] = Core::HID::NpadIdType::Player7;
+    supported_npad_id_types[7] = Core::HID::NpadIdType::Player8;
+    supported_npad_id_types[8] = Core::HID::NpadIdType::Other;
+    supported_npad_id_types[9] = Core::HID::NpadIdType::Handheld;
+
+    for (auto& input_protection : is_unintended_home_button_input_protection) {
+        input_protection = true;
+    }
+}
+
+void NPadData::ClearNpadSystemCommonPolicy() {
+    status.raw = 0;
+    supported_npad_style_set = Core::HID::NpadStyleSet::All;
+    npad_hold_type = NpadJoyHoldType::Vertical;
+    handheld_activation_mode = NpadHandheldActivationMode::Dual;
+
+    for (auto& button_assignment : npad_button_assignment) {
+        button_assignment = Core::HID::NpadButton::None;
+    }
+
+    supported_npad_id_types_count = 10;
+    supported_npad_id_types[0] = Core::HID::NpadIdType::Player1;
+    supported_npad_id_types[1] = Core::HID::NpadIdType::Player2;
+    supported_npad_id_types[2] = Core::HID::NpadIdType::Player3;
+    supported_npad_id_types[3] = Core::HID::NpadIdType::Player4;
+    supported_npad_id_types[4] = Core::HID::NpadIdType::Player5;
+    supported_npad_id_types[5] = Core::HID::NpadIdType::Player6;
+    supported_npad_id_types[6] = Core::HID::NpadIdType::Player7;
+    supported_npad_id_types[7] = Core::HID::NpadIdType::Player8;
+    supported_npad_id_types[8] = Core::HID::NpadIdType::Other;
+    supported_npad_id_types[9] = Core::HID::NpadIdType::Handheld;
+
+    for (auto& input_protection : is_unintended_home_button_input_protection) {
+        input_protection = true;
+    }
+}
+
+void NPadData::SetNpadJoyHoldType(NpadJoyHoldType hold_type) {
+    npad_hold_type = hold_type;
+    status.is_hold_type_set.Assign(true);
+}
+
+NpadJoyHoldType NPadData::GetNpadJoyHoldType() const {
+    return npad_hold_type;
+}
+
+void NPadData::SetHandheldActivationMode(NpadHandheldActivationMode activation_mode) {
+    handheld_activation_mode = activation_mode;
+}
+
+NpadHandheldActivationMode NPadData::GetHandheldActivationMode() const {
+    return handheld_activation_mode;
+}
+
+void NPadData::SetSupportedNpadStyleSet(Core::HID::NpadStyleSet style_set) {
+    supported_npad_style_set = style_set;
+    status.is_supported_styleset_set.Assign(true);
+    status.is_hold_type_set.Assign(true);
+}
+
+Core::HID::NpadStyleSet NPadData::GetSupportedNpadStyleSet() const {
+    return supported_npad_style_set;
+}
+
+bool NPadData::IsNpadStyleIndexSupported(Core::HID::NpadStyleIndex style_index) const {
+    Core::HID::NpadStyleTag style = {supported_npad_style_set};
+    switch (style_index) {
+    case Core::HID::NpadStyleIndex::Fullkey:
+        return style.fullkey.As<bool>();
+    case Core::HID::NpadStyleIndex::Handheld:
+        return style.handheld.As<bool>();
+    case Core::HID::NpadStyleIndex::JoyconDual:
+        return style.joycon_dual.As<bool>();
+    case Core::HID::NpadStyleIndex::JoyconLeft:
+        return style.joycon_left.As<bool>();
+    case Core::HID::NpadStyleIndex::JoyconRight:
+        return style.joycon_right.As<bool>();
+    case Core::HID::NpadStyleIndex::GameCube:
+        return style.gamecube.As<bool>();
+    case Core::HID::NpadStyleIndex::Pokeball:
+        return style.palma.As<bool>();
+    case Core::HID::NpadStyleIndex::NES:
+        return style.lark.As<bool>();
+    case Core::HID::NpadStyleIndex::SNES:
+        return style.lucia.As<bool>();
+    case Core::HID::NpadStyleIndex::N64:
+        return style.lagoon.As<bool>();
+    case Core::HID::NpadStyleIndex::SegaGenesis:
+        return style.lager.As<bool>();
+    default:
+        return false;
+    }
+}
+
+void NPadData::SetLrAssignmentMode(bool is_enabled) {
+    status.lr_assignment_mode.Assign(is_enabled);
+}
+
+bool NPadData::GetLrAssignmentMode() const {
+    return status.lr_assignment_mode.As<bool>();
+}
+
+void NPadData::SetAssigningSingleOnSlSrPress(bool is_enabled) {
+    status.assigning_single_on_sl_sr_press.Assign(is_enabled);
+}
+
+bool NPadData::GetAssigningSingleOnSlSrPress() const {
+    return status.assigning_single_on_sl_sr_press.As<bool>();
+}
+
+void NPadData::SetHomeProtectionEnabled(bool is_enabled, Core::HID::NpadIdType npad_id) {
+    is_unintended_home_button_input_protection[NpadIdTypeToIndex(npad_id)] = is_enabled;
+}
+
+bool NPadData::GetHomeProtectionEnabled(Core::HID::NpadIdType npad_id) const {
+    return is_unintended_home_button_input_protection[NpadIdTypeToIndex(npad_id)];
+}
+
+void NPadData::SetCaptureButtonAssignment(Core::HID::NpadButton button_assignment,
+                                          std::size_t style_index) {
+    npad_button_assignment[style_index] = button_assignment;
+}
+
+Core::HID::NpadButton NPadData::GetCaptureButtonAssignment(std::size_t style_index) const {
+    return npad_button_assignment[style_index];
+}
+
+std::size_t NPadData::GetNpadCaptureButtonAssignmentList(
+    std::span<Core::HID::NpadButton> out_list) const {
+    for (std::size_t i = 0; i < out_list.size(); i++) {
+        Core::HID::NpadStyleSet style_set = GetStylesetByIndex(i);
+        if ((style_set & supported_npad_style_set) == Core::HID::NpadStyleSet::None ||
+            npad_button_assignment[i] == Core::HID::NpadButton::None) {
+            return i;
+        }
+        out_list[i] = npad_button_assignment[i];
+    }
+
+    return out_list.size();
+}
+
+} // namespace Service::HID

src/hid_core/resources/npad/npad_data.h

@@ -0,0 +1,88 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+#include <span>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+
+struct NpadStatus {
+    union {
+        u32 raw{};
+
+        BitField<0, 1, u32> is_supported_styleset_set;
+        BitField<1, 1, u32> is_hold_type_set;
+        BitField<2, 1, u32> lr_assignment_mode;
+        BitField<3, 1, u32> assigning_single_on_sl_sr_press;
+        BitField<4, 1, u32> is_full_policy;
+        BitField<5, 1, u32> is_policy;
+        BitField<6, 1, u32> use_center_clamp;
+        BitField<7, 1, u32> system_ext_state;
+    };
+};
+static_assert(sizeof(NpadStatus) == 4, "NpadStatus is an invalid size");
+
+/// Handles Npad request from HID interfaces
+class NPadData final {
+public:
+    explicit NPadData();
+    ~NPadData();
+
+    NpadStatus GetNpadStatus() const;
+
+    void SetNpadAnalogStickUseCenterClamp(bool is_enabled);
+    bool GetNpadAnalogStickUseCenterClamp() const;
+
+    void SetNpadSystemExtStateEnabled(bool is_enabled);
+    bool GetNpadSystemExtState() const;
+
+    Result SetSupportedNpadIdType(std::span<const Core::HID::NpadIdType> list);
+    std::size_t GetSupportedNpadIdType(std::span<Core::HID::NpadIdType> out_list) const;
+    bool IsNpadIdTypeSupported(Core::HID::NpadIdType npad_id) const;
+
+    void SetNpadSystemCommonPolicy(bool is_full_policy);
+    void ClearNpadSystemCommonPolicy();
+
+    void SetNpadJoyHoldType(NpadJoyHoldType hold_type);
+    NpadJoyHoldType GetNpadJoyHoldType() const;
+
+    void SetHandheldActivationMode(NpadHandheldActivationMode activation_mode);
+    NpadHandheldActivationMode GetHandheldActivationMode() const;
+
+    void SetSupportedNpadStyleSet(Core::HID::NpadStyleSet style_set);
+    Core::HID::NpadStyleSet GetSupportedNpadStyleSet() const;
+    bool IsNpadStyleIndexSupported(Core::HID::NpadStyleIndex style_index) const;
+
+    void SetLrAssignmentMode(bool is_enabled);
+    bool GetLrAssignmentMode() const;
+
+    void SetAssigningSingleOnSlSrPress(bool is_enabled);
+    bool GetAssigningSingleOnSlSrPress() const;
+
+    void SetHomeProtectionEnabled(bool is_enabled, Core::HID::NpadIdType npad_id);
+    bool GetHomeProtectionEnabled(Core::HID::NpadIdType npad_id) const;
+
+    void SetCaptureButtonAssignment(Core::HID::NpadButton button_assignment,
+                                    std::size_t style_index);
+    Core::HID::NpadButton GetCaptureButtonAssignment(std::size_t style_index) const;
+    std::size_t GetNpadCaptureButtonAssignmentList(std::span<Core::HID::NpadButton> out_list) const;
+
+private:
+    NpadStatus status{};
+    Core::HID::NpadStyleSet supported_npad_style_set{Core::HID::NpadStyleSet::All};
+    NpadJoyHoldType npad_hold_type{NpadJoyHoldType::Vertical};
+    NpadHandheldActivationMode handheld_activation_mode{};
+    std::array<Core::HID::NpadIdType, MaxSupportedNpadIdTypes> supported_npad_id_types{};
+    std::array<Core::HID::NpadButton, StyleIndexCount> npad_button_assignment{};
+    std::size_t supported_npad_id_types_count{};
+    std::array<bool, MaxSupportedNpadIdTypes> is_unintended_home_button_input_protection{};
+};
+
+} // namespace Service::HID

src/hid_core/resources/npad/npad_resource.cpp

@@ -0,0 +1,697 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/kernel/k_readable_event.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/hid_util.h"
+#include "hid_core/resources/npad/npad_resource.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Service::HID {
+
+NPadResource::NPadResource(KernelHelpers::ServiceContext& context) : service_context{context} {}
+
+NPadResource::~NPadResource() = default;
+
+Result NPadResource::RegisterAppletResourceUserId(u64 aruid) {
+    const auto aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index < AruidIndexMax) {
+        return ResultAruidAlreadyRegistered;
+    }
+
+    std::size_t data_index = AruidIndexMax;
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        if (!state[i].flag.is_initialized) {
+            data_index = i;
+            break;
+        }
+    }
+
+    if (data_index == AruidIndexMax) {
+        return ResultAruidNoAvailableEntries;
+    }
+
+    auto& aruid_data = state[data_index];
+
+    aruid_data.aruid = aruid;
+    aruid_data.flag.is_initialized.Assign(true);
+
+    data_index = AruidIndexMax;
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        if (registration_list.flag[i] == RegistrationStatus::Initialized) {
+            if (registration_list.aruid[i] != aruid) {
+                continue;
+            }
+            data_index = i;
+            break;
+        }
+        // TODO: Don't Handle pending delete here
+        if (registration_list.flag[i] == RegistrationStatus::None ||
+            registration_list.flag[i] == RegistrationStatus::PendingDelete) {
+            data_index = i;
+            break;
+        }
+    }
+
+    if (data_index == AruidIndexMax) {
+        return ResultSuccess;
+    }
+
+    registration_list.flag[data_index] = RegistrationStatus::Initialized;
+    registration_list.aruid[data_index] = aruid;
+
+    return ResultSuccess;
+}
+
+void NPadResource::UnregisterAppletResourceUserId(u64 aruid) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+
+    FreeAppletResourceId(aruid);
+    if (aruid_index < AruidIndexMax) {
+        state[aruid_index] = {};
+        registration_list.flag[aruid_index] = RegistrationStatus::PendingDelete;
+    }
+
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        if (registration_list.flag[i] == RegistrationStatus::Initialized) {
+            active_data_aruid = registration_list.aruid[i];
+        }
+    }
+}
+
+void NPadResource::FreeAppletResourceId(u64 aruid) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+
+    if (aruid_index >= AruidIndexMax) {
+        return;
+    }
+
+    auto& aruid_data = state[aruid_index];
+
+    aruid_data.flag.is_assigned.Assign(false);
+
+    for (auto& controller_state : aruid_data.controller_state) {
+        if (!controller_state.is_styleset_update_event_initialized) {
+            continue;
+        }
+        service_context.CloseEvent(controller_state.style_set_update_event);
+        controller_state.is_styleset_update_event_initialized = false;
+    }
+}
+
+Result NPadResource::Activate(u64 aruid) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+
+    if (aruid_index >= AruidIndexMax) {
+        return ResultSuccess;
+    }
+
+    auto& state_data = state[aruid_index];
+
+    if (state_data.flag.is_assigned) {
+        return ResultAruidAlreadyRegistered;
+    }
+
+    state_data.flag.is_assigned.Assign(true);
+    state_data.data.ClearNpadSystemCommonPolicy();
+    state_data.npad_revision = NpadRevision::Revision0;
+    state_data.button_config = {};
+
+    if (active_data_aruid == aruid) {
+        default_hold_type = active_data.GetNpadJoyHoldType();
+        active_data.SetNpadJoyHoldType(default_hold_type);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::Activate() {
+    if (ref_counter == std::numeric_limits<s32>::max() - 1) {
+        return ResultAppletResourceOverflow;
+    }
+    if (ref_counter == 0) {
+        RegisterAppletResourceUserId(SystemAruid);
+        Activate(SystemAruid);
+    }
+    ref_counter++;
+    return ResultSuccess;
+}
+
+Result NPadResource::Deactivate() {
+    if (ref_counter == 0) {
+        return ResultAppletResourceNotInitialized;
+    }
+
+    UnregisterAppletResourceUserId(SystemAruid);
+    ref_counter--;
+    return ResultSuccess;
+}
+
+NPadData* NPadResource::GetActiveData() {
+    return &active_data;
+}
+
+u64 NPadResource::GetActiveDataAruid() {
+    return active_data_aruid;
+}
+
+void NPadResource::SetAppletResourceUserId(u64 aruid) {
+    if (active_data_aruid == aruid) {
+        return;
+    }
+
+    active_data_aruid = aruid;
+    default_hold_type = active_data.GetNpadJoyHoldType();
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+
+    if (aruid_index >= AruidIndexMax) {
+        return;
+    }
+
+    auto& data = state[aruid_index].data;
+    if (data.GetNpadStatus().is_policy || data.GetNpadStatus().is_full_policy) {
+        data.SetNpadJoyHoldType(default_hold_type);
+    }
+
+    active_data = data;
+    if (data.GetNpadStatus().is_hold_type_set) {
+        active_data.SetNpadJoyHoldType(default_hold_type);
+    }
+}
+
+std::size_t NPadResource::GetIndexFromAruid(u64 aruid) const {
+    for (std::size_t i = 0; i < AruidIndexMax; i++) {
+        if (registration_list.flag[i] == RegistrationStatus::Initialized &&
+            registration_list.aruid[i] == aruid) {
+            return i;
+        }
+    }
+    return AruidIndexMax;
+}
+
+Result NPadResource::ApplyNpadSystemCommonPolicy(u64 aruid, bool is_full_policy) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    auto& data = state[aruid_index].data;
+    data.SetNpadSystemCommonPolicy(is_full_policy);
+    data.SetNpadJoyHoldType(default_hold_type);
+    if (active_data_aruid == aruid) {
+        active_data.SetNpadSystemCommonPolicy(is_full_policy);
+        active_data.SetNpadJoyHoldType(default_hold_type);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::ClearNpadSystemCommonPolicy(u64 aruid) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].data.ClearNpadSystemCommonPolicy();
+    if (active_data_aruid == aruid) {
+        active_data.ClearNpadSystemCommonPolicy();
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::SetSupportedNpadStyleSet(u64 aruid, Core::HID::NpadStyleSet style_set) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    auto& data = state[aruid_index].data;
+    data.SetSupportedNpadStyleSet(style_set);
+    if (active_data_aruid == aruid) {
+        active_data.SetSupportedNpadStyleSet(style_set);
+        active_data.SetNpadJoyHoldType(data.GetNpadJoyHoldType());
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::GetSupportedNpadStyleSet(Core::HID::NpadStyleSet& out_style_Set,
+                                              u64 aruid) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    auto& data = state[aruid_index].data;
+    if (!data.GetNpadStatus().is_supported_styleset_set) {
+        return ResultUndefinedStyleset;
+    }
+
+    out_style_Set = data.GetSupportedNpadStyleSet();
+    return ResultSuccess;
+}
+
+Result NPadResource::GetMaskedSupportedNpadStyleSet(Core::HID::NpadStyleSet& out_style_set,
+                                                    u64 aruid) const {
+    if (aruid == SystemAruid) {
+        out_style_set = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+                        Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+                        Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::Palma |
+                        Core::HID::NpadStyleSet::SystemExt | Core::HID::NpadStyleSet::System;
+        return ResultSuccess;
+    }
+
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    auto& data = state[aruid_index].data;
+    if (!data.GetNpadStatus().is_supported_styleset_set) {
+        return ResultUndefinedStyleset;
+    }
+
+    Core::HID::NpadStyleSet mask{Core::HID::NpadStyleSet::None};
+    out_style_set = data.GetSupportedNpadStyleSet();
+
+    switch (state[aruid_index].npad_revision) {
+    case NpadRevision::Revision1:
+        mask = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+               Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+               Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::Gc |
+               Core::HID::NpadStyleSet::Palma | Core::HID::NpadStyleSet::SystemExt |
+               Core::HID::NpadStyleSet::System;
+        break;
+    case NpadRevision::Revision2:
+        mask = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+               Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+               Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::Gc |
+               Core::HID::NpadStyleSet::Palma | Core::HID::NpadStyleSet::Lark |
+               Core::HID::NpadStyleSet::SystemExt | Core::HID::NpadStyleSet::System;
+        break;
+    case NpadRevision::Revision3:
+        mask = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+               Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+               Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::Gc |
+               Core::HID::NpadStyleSet::Palma | Core::HID::NpadStyleSet::Lark |
+               Core::HID::NpadStyleSet::HandheldLark | Core::HID::NpadStyleSet::Lucia |
+               Core::HID::NpadStyleSet::Lagoon | Core::HID::NpadStyleSet::Lager |
+               Core::HID::NpadStyleSet::SystemExt | Core::HID::NpadStyleSet::System;
+        break;
+    default:
+        mask = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+               Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+               Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::SystemExt |
+               Core::HID::NpadStyleSet::System;
+        break;
+    }
+
+    out_style_set = out_style_set & mask;
+    return ResultSuccess;
+}
+
+Result NPadResource::GetAvailableStyleset(Core::HID::NpadStyleSet& out_style_set, u64 aruid) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    auto& data = state[aruid_index].data;
+    if (!data.GetNpadStatus().is_supported_styleset_set) {
+        return ResultUndefinedStyleset;
+    }
+
+    Core::HID::NpadStyleSet mask{Core::HID::NpadStyleSet::None};
+    out_style_set = data.GetSupportedNpadStyleSet();
+
+    switch (state[aruid_index].npad_revision) {
+    case NpadRevision::Revision1:
+        mask = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+               Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+               Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::Gc |
+               Core::HID::NpadStyleSet::Palma | Core::HID::NpadStyleSet::SystemExt |
+               Core::HID::NpadStyleSet::System;
+        break;
+    case NpadRevision::Revision2:
+        mask = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+               Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+               Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::Gc |
+               Core::HID::NpadStyleSet::Palma | Core::HID::NpadStyleSet::Lark |
+               Core::HID::NpadStyleSet::SystemExt | Core::HID::NpadStyleSet::System;
+        break;
+    case NpadRevision::Revision3:
+        mask = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+               Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+               Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::Gc |
+               Core::HID::NpadStyleSet::Palma | Core::HID::NpadStyleSet::Lark |
+               Core::HID::NpadStyleSet::HandheldLark | Core::HID::NpadStyleSet::Lucia |
+               Core::HID::NpadStyleSet::Lagoon | Core::HID::NpadStyleSet::Lager |
+               Core::HID::NpadStyleSet::SystemExt | Core::HID::NpadStyleSet::System;
+        break;
+    default:
+        mask = Core::HID::NpadStyleSet::Fullkey | Core::HID::NpadStyleSet::Handheld |
+               Core::HID::NpadStyleSet::JoyDual | Core::HID::NpadStyleSet::JoyLeft |
+               Core::HID::NpadStyleSet::JoyRight | Core::HID::NpadStyleSet::SystemExt |
+               Core::HID::NpadStyleSet::System;
+        break;
+    }
+
+    out_style_set = out_style_set & mask;
+    return ResultSuccess;
+}
+
+NpadRevision NPadResource::GetNpadRevision(u64 aruid) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return NpadRevision::Revision0;
+    }
+
+    return state[aruid_index].npad_revision;
+}
+
+Result NPadResource::IsSupportedNpadStyleSet(bool& is_set, u64 aruid) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    is_set = state[aruid_index].data.GetNpadStatus().is_supported_styleset_set.Value() != 0;
+    return ResultSuccess;
+}
+
+Result NPadResource::SetNpadJoyHoldType(u64 aruid, NpadJoyHoldType hold_type) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].data.SetNpadJoyHoldType(hold_type);
+    if (active_data_aruid == aruid) {
+        active_data.SetNpadJoyHoldType(hold_type);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::GetNpadJoyHoldType(NpadJoyHoldType& hold_type, u64 aruid) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    auto& data = state[aruid_index].data;
+    if (data.GetNpadStatus().is_policy || data.GetNpadStatus().is_full_policy) {
+        hold_type = active_data.GetNpadJoyHoldType();
+        return ResultSuccess;
+    }
+    hold_type = data.GetNpadJoyHoldType();
+    return ResultSuccess;
+}
+
+Result NPadResource::SetNpadHandheldActivationMode(u64 aruid,
+                                                   NpadHandheldActivationMode activation_mode) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].data.SetHandheldActivationMode(activation_mode);
+    if (active_data_aruid == aruid) {
+        active_data.SetHandheldActivationMode(activation_mode);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::GetNpadHandheldActivationMode(NpadHandheldActivationMode& activation_mode,
+                                                   u64 aruid) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    activation_mode = state[aruid_index].data.GetHandheldActivationMode();
+    return ResultSuccess;
+}
+
+Result NPadResource::SetSupportedNpadIdType(
+    u64 aruid, std::span<const Core::HID::NpadIdType> supported_npad_list) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+    if (supported_npad_list.size() > MaxSupportedNpadIdTypes) {
+        return ResultInvalidArraySize;
+    }
+
+    Result result = state[aruid_index].data.SetSupportedNpadIdType(supported_npad_list);
+    if (result.IsSuccess() && active_data_aruid == aruid) {
+        result = active_data.SetSupportedNpadIdType(supported_npad_list);
+    }
+
+    return result;
+}
+
+bool NPadResource::IsControllerSupported(u64 aruid, Core::HID::NpadStyleIndex style_index) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return false;
+    }
+    return state[aruid_index].data.IsNpadStyleIndexSupported(style_index);
+}
+
+Result NPadResource::SetLrAssignmentMode(u64 aruid, bool is_enabled) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].data.SetLrAssignmentMode(is_enabled);
+    if (active_data_aruid == aruid) {
+        active_data.SetLrAssignmentMode(is_enabled);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::GetLrAssignmentMode(bool& is_enabled, u64 aruid) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    is_enabled = state[aruid_index].data.GetLrAssignmentMode();
+    return ResultSuccess;
+}
+
+Result NPadResource::SetAssigningSingleOnSlSrPress(u64 aruid, bool is_enabled) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].data.SetAssigningSingleOnSlSrPress(is_enabled);
+    if (active_data_aruid == aruid) {
+        active_data.SetAssigningSingleOnSlSrPress(is_enabled);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::IsAssigningSingleOnSlSrPressEnabled(bool& is_enabled, u64 aruid) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    is_enabled = state[aruid_index].data.GetAssigningSingleOnSlSrPress();
+    return ResultSuccess;
+}
+
+Result NPadResource::AcquireNpadStyleSetUpdateEventHandle(u64 aruid,
+                                                          Kernel::KReadableEvent** out_event,
+                                                          Core::HID::NpadIdType npad_id) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    auto& controller_state = state[aruid_index].controller_state[NpadIdTypeToIndex(npad_id)];
+    if (!controller_state.is_styleset_update_event_initialized) {
+        // Auto clear = true
+        controller_state.style_set_update_event =
+            service_context.CreateEvent("NpadResource:StylesetUpdateEvent");
+
+        // Assume creating the event succeeds otherwise crash the system here
+        controller_state.is_styleset_update_event_initialized = true;
+    }
+
+    *out_event = &controller_state.style_set_update_event->GetReadableEvent();
+
+    if (controller_state.is_styleset_update_event_initialized) {
+        controller_state.style_set_update_event->Signal();
+    }
+
+    return ResultSuccess;
+}
+
+Result NPadResource::SignalStyleSetUpdateEvent(u64 aruid, Core::HID::NpadIdType npad_id) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+    auto controller = state[aruid_index].controller_state[NpadIdTypeToIndex(npad_id)];
+    if (controller.is_styleset_update_event_initialized) {
+        controller.style_set_update_event->Signal();
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::GetHomeProtectionEnabled(bool& is_enabled, u64 aruid,
+                                              Core::HID::NpadIdType npad_id) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    is_enabled = state[aruid_index].data.GetHomeProtectionEnabled(npad_id);
+    return ResultSuccess;
+}
+
+Result NPadResource::SetHomeProtectionEnabled(u64 aruid, Core::HID::NpadIdType npad_id,
+                                              bool is_enabled) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].data.SetHomeProtectionEnabled(is_enabled, npad_id);
+    if (active_data_aruid == aruid) {
+        active_data.SetHomeProtectionEnabled(is_enabled, npad_id);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::SetNpadAnalogStickUseCenterClamp(u64 aruid, bool is_enabled) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].data.SetNpadAnalogStickUseCenterClamp(is_enabled);
+    if (active_data_aruid == aruid) {
+        active_data.SetNpadAnalogStickUseCenterClamp(is_enabled);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::SetButtonConfig(u64 aruid, Core::HID::NpadIdType npad_id, std::size_t index,
+                                     Core::HID::NpadButton button_config) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].button_config[NpadIdTypeToIndex(npad_id)][index] = button_config;
+    return ResultSuccess;
+}
+
+Core::HID::NpadButton NPadResource::GetButtonConfig(u64 aruid, Core::HID::NpadIdType npad_id,
+                                                    std::size_t index, Core::HID::NpadButton mask,
+                                                    bool is_enabled) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return Core::HID::NpadButton::None;
+    }
+
+    auto& button_config = state[aruid_index].button_config[NpadIdTypeToIndex(npad_id)][index];
+    if (is_enabled) {
+        button_config = button_config | mask;
+        return button_config;
+    }
+
+    button_config = Core::HID::NpadButton::None;
+    return Core::HID::NpadButton::None;
+}
+
+void NPadResource::ResetButtonConfig() {
+    for (auto& selected_state : state) {
+        selected_state.button_config = {};
+    }
+}
+
+Result NPadResource::SetNpadCaptureButtonAssignment(u64 aruid,
+                                                    Core::HID::NpadStyleSet npad_style_set,
+                                                    Core::HID::NpadButton button_assignment) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    // Must be a power of two
+    const auto raw_styleset = static_cast<u32>(npad_style_set);
+    if (raw_styleset == 0 && (raw_styleset & (raw_styleset - 1)) != 0) {
+        return ResultMultipleStyleSetSelected;
+    }
+
+    std::size_t style_index{};
+    Core::HID::NpadStyleSet style_selected{};
+    for (style_index = 0; style_index < StyleIndexCount; ++style_index) {
+        style_selected = GetStylesetByIndex(style_index);
+        if (npad_style_set == style_selected) {
+            break;
+        }
+    }
+
+    if (style_selected == Core::HID::NpadStyleSet::None) {
+        return ResultMultipleStyleSetSelected;
+    }
+
+    state[aruid_index].data.SetCaptureButtonAssignment(button_assignment, style_index);
+    if (active_data_aruid == aruid) {
+        active_data.SetCaptureButtonAssignment(button_assignment, style_index);
+    }
+    return ResultSuccess;
+}
+
+Result NPadResource::ClearNpadCaptureButtonAssignment(u64 aruid) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    for (std::size_t i = 0; i < StyleIndexCount; i++) {
+        state[aruid_index].data.SetCaptureButtonAssignment(Core::HID::NpadButton::None, i);
+        if (active_data_aruid == aruid) {
+            active_data.SetCaptureButtonAssignment(Core::HID::NpadButton::None, i);
+        }
+    }
+    return ResultSuccess;
+}
+
+std::size_t NPadResource::GetNpadCaptureButtonAssignment(std::span<Core::HID::NpadButton> out_list,
+                                                         u64 aruid) const {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return 0;
+    }
+    return state[aruid_index].data.GetNpadCaptureButtonAssignmentList(out_list);
+}
+
+void NPadResource::SetNpadRevision(u64 aruid, NpadRevision revision) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return;
+    }
+
+    state[aruid_index].npad_revision = revision;
+}
+
+Result NPadResource::SetNpadSystemExtStateEnabled(u64 aruid, bool is_enabled) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+    if (aruid_index >= AruidIndexMax) {
+        return ResultNpadNotConnected;
+    }
+
+    state[aruid_index].data.SetNpadAnalogStickUseCenterClamp(is_enabled);
+    if (active_data_aruid == aruid) {
+        active_data.SetNpadAnalogStickUseCenterClamp(is_enabled);
+    }
+    return ResultSuccess;
+}
+
+} // namespace Service::HID

src/hid_core/resources/npad/npad_resource.h

@@ -0,0 +1,132 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+#include <mutex>
+#include <span>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/applet_resource.h"
+#include "hid_core/resources/npad/npad_data.h"
+#include "hid_core/resources/npad/npad_types.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+namespace Service::HID {
+struct DataStatusFlag;
+
+struct NpadControllerState {
+    bool is_styleset_update_event_initialized{};
+    INSERT_PADDING_BYTES(0x7);
+    Kernel::KEvent* style_set_update_event{nullptr};
+    INSERT_PADDING_BYTES(0x27);
+};
+
+struct NpadState {
+    DataStatusFlag flag{};
+    u64 aruid{};
+    NPadData data{};
+    std::array<std::array<Core::HID::NpadButton, StyleIndexCount>, MaxSupportedNpadIdTypes>
+        button_config;
+    std::array<NpadControllerState, MaxSupportedNpadIdTypes> controller_state;
+    NpadRevision npad_revision;
+};
+
+/// Handles Npad request from HID interfaces
+class NPadResource final {
+public:
+    explicit NPadResource(KernelHelpers::ServiceContext& context);
+    ~NPadResource();
+
+    NPadData* GetActiveData();
+    u64 GetActiveDataAruid();
+
+    Result RegisterAppletResourceUserId(u64 aruid);
+    void UnregisterAppletResourceUserId(u64 aruid);
+
+    void FreeAppletResourceId(u64 aruid);
+
+    Result Activate(u64 aruid);
+    Result Activate();
+    Result Deactivate();
+
+    void SetAppletResourceUserId(u64 aruid);
+    std::size_t GetIndexFromAruid(u64 aruid) const;
+
+    Result ApplyNpadSystemCommonPolicy(u64 aruid, bool is_full_policy);
+    Result ClearNpadSystemCommonPolicy(u64 aruid);
+
+    Result SetSupportedNpadStyleSet(u64 aruid, Core::HID::NpadStyleSet style_set);
+    Result GetSupportedNpadStyleSet(Core::HID::NpadStyleSet& out_style_Set, u64 aruid) const;
+    Result GetMaskedSupportedNpadStyleSet(Core::HID::NpadStyleSet& out_style_set, u64 aruid) const;
+    Result GetAvailableStyleset(Core::HID::NpadStyleSet& out_style_set, u64 aruid) const;
+
+    NpadRevision GetNpadRevision(u64 aruid) const;
+    void SetNpadRevision(u64 aruid, NpadRevision revision);
+
+    Result IsSupportedNpadStyleSet(bool& is_set, u64 aruid);
+
+    Result SetNpadJoyHoldType(u64 aruid, NpadJoyHoldType hold_type);
+    Result GetNpadJoyHoldType(NpadJoyHoldType& hold_type, u64 aruid) const;
+
+    Result SetNpadHandheldActivationMode(u64 aruid, NpadHandheldActivationMode activation_mode);
+    Result GetNpadHandheldActivationMode(NpadHandheldActivationMode& activation_mode,
+                                         u64 aruid) const;
+
+    Result SetSupportedNpadIdType(u64 aruid,
+                                  std::span<const Core::HID::NpadIdType> supported_npad_list);
+    bool IsControllerSupported(u64 aruid, Core::HID::NpadStyleIndex style_index) const;
+
+    Result SetLrAssignmentMode(u64 aruid, bool is_enabled);
+    Result GetLrAssignmentMode(bool& is_enabled, u64 aruid) const;
+
+    Result SetAssigningSingleOnSlSrPress(u64 aruid, bool is_enabled);
+    Result IsAssigningSingleOnSlSrPressEnabled(bool& is_enabled, u64 aruid) const;
+
+    Result AcquireNpadStyleSetUpdateEventHandle(u64 aruid, Kernel::KReadableEvent** out_event,
+                                                Core::HID::NpadIdType npad_id);
+    Result SignalStyleSetUpdateEvent(u64 aruid, Core::HID::NpadIdType npad_id);
+
+    Result GetHomeProtectionEnabled(bool& is_enabled, u64 aruid,
+                                    Core::HID::NpadIdType npad_id) const;
+    Result SetHomeProtectionEnabled(u64 aruid, Core::HID::NpadIdType npad_id, bool is_enabled);
+
+    Result SetNpadAnalogStickUseCenterClamp(u64 aruid, bool is_enabled);
+
+    Result SetButtonConfig(u64 aruid, Core::HID::NpadIdType npad_id, std::size_t index,
+                           Core::HID::NpadButton button_config);
+    Core::HID::NpadButton GetButtonConfig(u64 aruid, Core::HID::NpadIdType npad_id,
+                                          std::size_t index, Core::HID::NpadButton mask,
+                                          bool is_enabled);
+    void ResetButtonConfig();
+
+    Result SetNpadCaptureButtonAssignment(u64 aruid, Core::HID::NpadStyleSet npad_style_set,
+                                          Core::HID::NpadButton button_assignment);
+    Result ClearNpadCaptureButtonAssignment(u64 aruid);
+    std::size_t GetNpadCaptureButtonAssignment(std::span<Core::HID::NpadButton> out_list,
+                                               u64 aruid) const;
+
+    Result SetNpadSystemExtStateEnabled(u64 aruid, bool is_enabled);
+
+private:
+    NPadData active_data{};
+    AruidRegisterList registration_list{};
+    std::array<NpadState, AruidIndexMax> state{};
+    u64 active_data_aruid{};
+    NpadJoyHoldType default_hold_type{};
+    s32 ref_counter{};
+
+    KernelHelpers::ServiceContext& service_context;
+};
+} // namespace Service::HID

src/hid_core/resources/npad/npad_types.h

@@ -0,0 +1,358 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "hid_core/hid_types.h"
+
+namespace Core::HID {
+class EmulatedController;
+}
+
+namespace Service::HID {
+static constexpr std::size_t MaxSupportedNpadIdTypes = 10;
+static constexpr std::size_t StyleIndexCount = 7;
+
+// This is nn::hid::NpadJoyHoldType
+enum class NpadJoyHoldType : u64 {
+    Vertical = 0,
+    Horizontal = 1,
+};
+
+// This is nn::hid::NpadJoyAssignmentMode
+enum class NpadJoyAssignmentMode : u32 {
+    Dual = 0,
+    Single = 1,
+};
+
+// This is nn::hid::NpadJoyDeviceType
+enum class NpadJoyDeviceType : s64 {
+    Left = 0,
+    Right = 1,
+};
+
+// This is nn::hid::NpadHandheldActivationMode
+enum class NpadHandheldActivationMode : u64 {
+    Dual = 0,
+    Single = 1,
+    None = 2,
+    MaxActivationMode = 3,
+};
+
+// 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,
+    HandheldJoyConLeftOnly = 2,
+    HandheldJoyConRightOnly = 3,
+    HandheldJoyConLeftJoyConRight = 4,
+    JoyDual = 5,
+    JoyDualLeftOnly = 6,
+    JoyDualRightOnly = 7,
+    JoyLeftHorizontal = 8,
+    JoyLeftVertical = 9,
+    JoyRightHorizontal = 10,
+    JoyRightVertical = 11,
+    SwitchProController = 12,
+    CompatibleProController = 13,
+    CompatibleJoyCon = 14,
+    LarkHvc1 = 15,
+    LarkHvc2 = 16,
+    LarkNesLeft = 17,
+    LarkNesRight = 18,
+    Lucia = 19,
+    Verification = 20,
+    Lagon = 21,
+};
+
+using AppletFooterUiVariant = u8;
+
+// This is "nn::hid::system::AppletDetailedUiType".
+struct AppletDetailedUiType {
+    AppletFooterUiVariant ui_variant;
+    INSERT_PADDING_BYTES(0x2);
+    AppletFooterUiType footer;
+};
+static_assert(sizeof(AppletDetailedUiType) == 0x4, "AppletDetailedUiType is an invalid size");
+// This is nn::hid::NpadCommunicationMode
+enum class NpadCommunicationMode : u64 {
+    Mode_5ms = 0,
+    Mode_10ms = 1,
+    Mode_15ms = 2,
+    Default = 3,
+};
+
+enum class NpadRevision : u32 {
+    Revision0 = 0,
+    Revision1 = 1,
+    Revision2 = 2,
+    Revision3 = 3,
+};
+
+// This is nn::hid::detail::ColorAttribute
+enum class ColorAttribute : u32 {
+    Ok = 0,
+    ReadError = 1,
+    NoController = 2,
+};
+static_assert(sizeof(ColorAttribute) == 4, "ColorAttribute is an invalid size");
+
+// This is nn::hid::detail::NpadFullKeyColorState
+struct NpadFullKeyColorState {
+    ColorAttribute attribute{ColorAttribute::NoController};
+    Core::HID::NpadControllerColor fullkey{};
+};
+static_assert(sizeof(NpadFullKeyColorState) == 0xC, "NpadFullKeyColorState is an invalid size");
+
+// This is nn::hid::detail::NpadJoyColorState
+struct NpadJoyColorState {
+    ColorAttribute attribute{ColorAttribute::NoController};
+    Core::HID::NpadControllerColor left{};
+    Core::HID::NpadControllerColor right{};
+};
+static_assert(sizeof(NpadJoyColorState) == 0x14, "NpadJoyColorState is an invalid size");
+
+// This is nn::hid::NpadAttribute
+struct NpadAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> is_connected;
+        BitField<1, 1, u32> is_wired;
+        BitField<2, 1, u32> is_left_connected;
+        BitField<3, 1, u32> is_left_wired;
+        BitField<4, 1, u32> is_right_connected;
+        BitField<5, 1, u32> is_right_wired;
+    };
+};
+static_assert(sizeof(NpadAttribute) == 4, "NpadAttribute is an invalid size");
+
+// 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(NPadGenericState) == 0x28, "NPadGenericState is an invalid size");
+
+// This is nn::hid::server::NpadGcTriggerState
+struct NpadGcTriggerState {
+    s64 sampling_number{};
+    s32 l_analog{};
+    s32 r_analog{};
+};
+static_assert(sizeof(NpadGcTriggerState) == 0x10, "NpadGcTriggerState is an invalid size");
+
+// This is nn::hid::NpadSystemProperties
+struct NPadSystemProperties {
+    union {
+        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;
+        BitField<3, 1, s64> is_powered_joy_dual;
+        BitField<4, 1, s64> is_powered_joy_left;
+        BitField<5, 1, s64> is_powered_joy_right;
+        BitField<9, 1, s64> is_system_unsupported_button;
+        BitField<10, 1, s64> is_system_ext_unsupported_button;
+        BitField<11, 1, s64> is_vertical;
+        BitField<12, 1, s64> is_horizontal;
+        BitField<13, 1, s64> use_plus;
+        BitField<14, 1, s64> use_minus;
+        BitField<15, 1, s64> use_directional_buttons;
+    };
+};
+static_assert(sizeof(NPadSystemProperties) == 0x8, "NPadSystemProperties is an invalid size");
+
+// This is nn::hid::NpadSystemButtonProperties
+struct NpadSystemButtonProperties {
+    union {
+        s32 raw{};
+        BitField<0, 1, s32> is_home_button_protection_enabled;
+    };
+};
+static_assert(sizeof(NpadSystemButtonProperties) == 0x4, "NPadButtonProperties is an invalid size");
+
+// This is nn::hid::system::DeviceType
+struct DeviceType {
+    union {
+        u32 raw{};
+        BitField<0, 1, s32> fullkey;
+        BitField<1, 1, s32> debug_pad;
+        BitField<2, 1, s32> handheld_left;
+        BitField<3, 1, s32> handheld_right;
+        BitField<4, 1, s32> joycon_left;
+        BitField<5, 1, s32> joycon_right;
+        BitField<6, 1, s32> palma;
+        BitField<7, 1, s32> lark_hvc_left;
+        BitField<8, 1, s32> lark_hvc_right;
+        BitField<9, 1, s32> lark_nes_left;
+        BitField<10, 1, s32> lark_nes_right;
+        BitField<11, 1, s32> handheld_lark_hvc_left;
+        BitField<12, 1, s32> handheld_lark_hvc_right;
+        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;
+    };
+};
+
+// 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");
+
+// 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,
+};
+
+// nn::hidtypes::FeatureType
+struct FeatureType {
+    union {
+        u64 raw{};
+        BitField<0, 1, u64> has_left_analog_stick;
+        BitField<1, 1, u64> has_right_analog_stick;
+        BitField<2, 1, u64> has_left_joy_six_axis_sensor;
+        BitField<3, 1, u64> has_right_joy_six_axis_sensor;
+        BitField<4, 1, u64> has_fullkey_joy_six_axis_sensor;
+        BitField<5, 1, u64> has_left_lra_vibration_device;
+        BitField<6, 1, u64> has_right_lra_vibration_device;
+        BitField<7, 1, u64> has_gc_vibration_device;
+        BitField<8, 1, u64> has_erm_vibration_device;
+        BitField<9, 1, u64> has_left_joy_rail_bus;
+        BitField<10, 1, u64> has_right_joy_rail_bus;
+        BitField<11, 1, u64> has_internal_bus;
+        BitField<12, 1, u64> is_palma;
+        BitField<13, 1, u64> has_nfc;
+        BitField<14, 1, u64> has_ir_sensor;
+        BitField<15, 1, u64> is_analog_stick_calibration_supported;
+        BitField<16, 1, u64> is_six_axis_Sensor_user_calibration_supported;
+        BitField<17, 1, u64> has_left_right_joy_battery;
+        BitField<18, 1, u64> has_fullkey_battery;
+        BitField<19, 1, u64> is_disconnect_controller_if_battery_none;
+        BitField<20, 1, u64> has_controller_color;
+        BitField<21, 1, u64> has_grip_color;
+        BitField<22, 1, u64> has_identification_code;
+        BitField<23, 1, u64> has_bluetooth_address;
+        BitField<24, 1, u64> has_mcu;
+        BitField<25, 1, u64> has_notification_led;
+        BitField<26, 1, u64> has_directional_buttons;
+        BitField<27, 1, u64> has_indicator_led;
+        BitField<28, 1, u64> is_button_config_embedded_supported;
+        BitField<29, 1, u64> is_button_config_full_supported;
+        BitField<30, 1, u64> is_button_config_left_supported;
+        BitField<31, 1, u64> is_button_config_right_supported;
+        BitField<32, 1, u64> is_usb_hid_device;
+        BitField<33, 1, u64> is_kuina_device;
+        BitField<34, 1, u64> is_direct_usb_to_bt_switching_device;
+        BitField<35, 1, u64> is_normalize_analog_stick_with_inner_cross;
+    };
+};
+static_assert(sizeof(FeatureType) == 8, "FeatureType is an invalid size");
+
+// This is nn::hid::AssignmentStyle
+struct AssignmentStyle {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> is_external_assigned;
+        BitField<1, 1, u32> is_external_left_assigned;
+        BitField<2, 1, u32> is_external_right_assigned;
+        BitField<3, 1, u32> is_handheld_assigned;
+        BitField<4, 1, u32> is_handheld_left_assigned;
+        BitField<5, 1, u32> is_handheld_right_assigned;
+    };
+};
+static_assert(sizeof(AssignmentStyle) == 4, "AssignmentStyle is an invalid size");
+
+// This is nn::hid::server::IAbstractedPad::InternalFlags
+struct InternalFlags {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> is_bound;
+        BitField<1, 1, u32> is_connected;
+        BitField<2, 1, u32> is_battery_low_ovln_required;
+        BitField<3, 1, u32> is_battery_low_ovln_delay_required;
+        BitField<4, 1, u32> is_sample_received;
+        BitField<5, 1, u32> is_virtual_input;
+        BitField<6, 1, u32> is_wired;
+        BitField<8, 1, u32> use_center_clamp;
+        BitField<9, 1, u32> has_virtual_six_axis_sensor_acceleration;
+        BitField<10, 1, u32> has_virtual_six_axis_sensor_angle;
+        BitField<11, 1, u32> is_debug_pad;
+    };
+};
+static_assert(sizeof(InternalFlags) == 4, "InternalFlags is an invalid size");
+
+/// This is nn::hid::server::IAbstractedPad
+struct IAbstractedPad {
+    InternalFlags internal_flags;
+    u64 controller_id;
+    u32 controller_number;
+    u64 low_battery_display_delay_time;
+    u64 low_battery_display_delay_interval;
+    FeatureType feature_set;
+    FeatureType disabled_feature_set;
+    AssignmentStyle assignment_style;
+    Core::HID::NpadStyleIndex device_type;
+    Core::HID::NpadInterfaceType interface_type;
+    Core::HID::NpadPowerInfo power_info;
+    u32 pad_state;
+    u32 button_mask;
+    u32 system_button_mask;
+    u8 indicator;
+    std::vector<f32> virtual_six_axis_sensor_acceleration;
+    std::vector<f32> virtual_six_axis_sensor_angle;
+    Core::HID::EmulatedController* xcd_handle;
+    u64 color;
+};
+} // namespace Service::HID

src/hid_core/resources/npad/npad_vibration.cpp

@@ -0,0 +1,94 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/set/system_settings_server.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/resources/npad/npad_vibration.h"
+
+namespace Service::HID {
+
+NpadVibration::NpadVibration() {}
+
+NpadVibration::~NpadVibration() = default;
+
+Result NpadVibration::Activate() {
+    std::scoped_lock lock{mutex};
+
+    f32 master_volume = 1.0f;
+    m_set_sys->GetVibrationMasterVolume(&master_volume);
+    if (master_volume < 0.0f || master_volume > 1.0f) {
+        return ResultVibrationStrengthOutOfRange;
+    }
+
+    volume = master_volume;
+    return ResultSuccess;
+}
+
+Result NpadVibration::Deactivate() {
+    return ResultSuccess;
+}
+
+Result NpadVibration::SetSettingsService(
+    std::shared_ptr<Service::Set::ISystemSettingsServer> settings) {
+    m_set_sys = settings;
+    return ResultSuccess;
+}
+
+Result NpadVibration::SetVibrationMasterVolume(f32 master_volume) {
+    std::scoped_lock lock{mutex};
+
+    if (master_volume < 0.0f && master_volume > 1.0f) {
+        return ResultVibrationStrengthOutOfRange;
+    }
+
+    volume = master_volume;
+    m_set_sys->SetVibrationMasterVolume(master_volume);
+
+    return ResultSuccess;
+}
+
+Result NpadVibration::GetVibrationVolume(f32& out_volume) const {
+    std::scoped_lock lock{mutex};
+    out_volume = volume;
+    return ResultSuccess;
+}
+
+Result NpadVibration::GetVibrationMasterVolume(f32& out_volume) const {
+    std::scoped_lock lock{mutex};
+
+    f32 master_volume = 1.0f;
+    m_set_sys->GetVibrationMasterVolume(&master_volume);
+    if (master_volume < 0.0f || master_volume > 1.0f) {
+        return ResultVibrationStrengthOutOfRange;
+    }
+
+    out_volume = master_volume;
+    return ResultSuccess;
+}
+
+Result NpadVibration::BeginPermitVibrationSession(u64 aruid) {
+    std::scoped_lock lock{mutex};
+    session_aruid = aruid;
+    volume = 1.0;
+    return ResultSuccess;
+}
+
+Result NpadVibration::EndPermitVibrationSession() {
+    std::scoped_lock lock{mutex};
+
+    f32 master_volume = 1.0f;
+    m_set_sys->GetVibrationMasterVolume(&master_volume);
+    if (master_volume < 0.0f || master_volume > 1.0f) {
+        return ResultVibrationStrengthOutOfRange;
+    }
+
+    volume = master_volume;
+    session_aruid = 0;
+    return ResultSuccess;
+}
+
+u64 NpadVibration::GetSessionAruid() const {
+    return session_aruid;
+}
+
+} // namespace Service::HID

src/hid_core/resources/npad/npad_vibration.h

@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+
+namespace Service::Set {
+class ISystemSettingsServer;
+}
+
+namespace Service::HID {
+
+class NpadVibration final {
+public:
+    explicit NpadVibration();
+    ~NpadVibration();
+
+    Result Activate();
+    Result Deactivate();
+
+    Result SetSettingsService(std::shared_ptr<Service::Set::ISystemSettingsServer> settings);
+    Result SetVibrationMasterVolume(f32 master_volume);
+    Result GetVibrationVolume(f32& out_volume) const;
+    Result GetVibrationMasterVolume(f32& out_volume) const;
+
+    Result BeginPermitVibrationSession(u64 aruid);
+    Result EndPermitVibrationSession();
+
+    u64 GetSessionAruid() const;
+
+private:
+    f32 volume{};
+    u64 session_aruid{};
+    mutable std::mutex mutex;
+
+    std::shared_ptr<Service::Set::ISystemSettingsServer> m_set_sys;
+};
+
+} // namespace Service::HID

src/hid_core/resources/palma/palma.cpp

@@ -0,0 +1,227 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core_timing.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/kernel/k_readable_event.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "hid_core/frontend/emulated_controller.h"
+#include "hid_core/hid_core.h"
+#include "hid_core/resources/palma/palma.h"
+
+namespace Service::HID {
+
+Palma::Palma(Core::HID::HIDCore& hid_core_, KernelHelpers::ServiceContext& service_context_)
+    : ControllerBase{hid_core_}, service_context{service_context_} {
+    controller = hid_core.GetEmulatedController(Core::HID::NpadIdType::Other);
+    operation_complete_event = service_context.CreateEvent("hid:PalmaOperationCompleteEvent");
+}
+
+Palma::~Palma() {
+    service_context.CloseEvent(operation_complete_event);
+};
+
+void Palma::OnInit() {}
+
+void Palma::OnRelease() {}
+
+void Palma::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
+    if (!IsControllerActivated()) {
+        return;
+    }
+}
+
+Result Palma::GetPalmaConnectionHandle(Core::HID::NpadIdType npad_id,
+                                       PalmaConnectionHandle& handle) {
+    active_handle.npad_id = npad_id;
+    handle = active_handle;
+    return ResultSuccess;
+}
+
+Result Palma::InitializePalma(const PalmaConnectionHandle& handle) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    Activate();
+    return ResultSuccess;
+}
+
+Kernel::KReadableEvent& Palma::AcquirePalmaOperationCompleteEvent(
+    const PalmaConnectionHandle& handle) const {
+    if (handle.npad_id != active_handle.npad_id) {
+        LOG_ERROR(Service_HID, "Invalid npad id {}", handle.npad_id);
+    }
+    return operation_complete_event->GetReadableEvent();
+}
+
+Result Palma::GetPalmaOperationInfo(const PalmaConnectionHandle& handle,
+                                    PalmaOperationType& operation_type,
+                                    std::span<u8> out_data) const {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    operation_type = static_cast<PalmaOperationType>(operation.operation);
+    std::memcpy(out_data.data(), operation.data.data(),
+                std::min(out_data.size(), operation.data.size()));
+
+    return ResultSuccess;
+}
+
+Result Palma::PlayPalmaActivity(const PalmaConnectionHandle& handle, u64 palma_activity) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    operation.operation = PackedPalmaOperationType::PlayActivity;
+    operation.result = PalmaResultSuccess;
+    operation.data = {};
+    operation_complete_event->Signal();
+    return ResultSuccess;
+}
+
+Result Palma::SetPalmaFrModeType(const PalmaConnectionHandle& handle, PalmaFrModeType fr_mode_) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    fr_mode = fr_mode_;
+    return ResultSuccess;
+}
+
+Result Palma::ReadPalmaStep(const PalmaConnectionHandle& handle) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    operation.operation = PackedPalmaOperationType::ReadStep;
+    operation.result = PalmaResultSuccess;
+    operation.data = {};
+    operation_complete_event->Signal();
+    return ResultSuccess;
+}
+
+Result Palma::EnablePalmaStep(const PalmaConnectionHandle& handle, bool is_enabled) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    return ResultSuccess;
+}
+
+Result Palma::ResetPalmaStep(const PalmaConnectionHandle& handle) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    return ResultSuccess;
+}
+
+void Palma::ReadPalmaApplicationSection() {}
+
+void Palma::WritePalmaApplicationSection() {}
+
+Result Palma::ReadPalmaUniqueCode(const PalmaConnectionHandle& handle) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    operation.operation = PackedPalmaOperationType::ReadUniqueCode;
+    operation.result = PalmaResultSuccess;
+    operation.data = {};
+    operation_complete_event->Signal();
+    return ResultSuccess;
+}
+
+Result Palma::SetPalmaUniqueCodeInvalid(const PalmaConnectionHandle& handle) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    operation.operation = PackedPalmaOperationType::SetUniqueCodeInvalid;
+    operation.result = PalmaResultSuccess;
+    operation.data = {};
+    operation_complete_event->Signal();
+    return ResultSuccess;
+}
+
+void Palma::WritePalmaActivityEntry() {}
+
+Result Palma::WritePalmaRgbLedPatternEntry(const PalmaConnectionHandle& handle, u64 unknown) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    operation.operation = PackedPalmaOperationType::WriteRgbLedPatternEntry;
+    operation.result = PalmaResultSuccess;
+    operation.data = {};
+    operation_complete_event->Signal();
+    return ResultSuccess;
+}
+
+Result Palma::WritePalmaWaveEntry(const PalmaConnectionHandle& handle, PalmaWaveSet wave,
+                                  Common::ProcessAddress t_mem, u64 size) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    operation.operation = PackedPalmaOperationType::WriteWaveEntry;
+    operation.result = PalmaResultSuccess;
+    operation.data = {};
+    operation_complete_event->Signal();
+    return ResultSuccess;
+}
+
+Result Palma::SetPalmaDataBaseIdentificationVersion(const PalmaConnectionHandle& handle,
+                                                    s32 database_id_version_) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    database_id_version = database_id_version_;
+    operation.operation = PackedPalmaOperationType::ReadDataBaseIdentificationVersion;
+    operation.result = PalmaResultSuccess;
+    operation.data[0] = {};
+    operation_complete_event->Signal();
+    return ResultSuccess;
+}
+
+Result Palma::GetPalmaDataBaseIdentificationVersion(const PalmaConnectionHandle& handle) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    operation.operation = PackedPalmaOperationType::ReadDataBaseIdentificationVersion;
+    operation.result = PalmaResultSuccess;
+    operation.data = {};
+    operation.data[0] = static_cast<u8>(database_id_version);
+    operation_complete_event->Signal();
+    return ResultSuccess;
+}
+
+void Palma::SuspendPalmaFeature() {}
+
+Result Palma::GetPalmaOperationResult(const PalmaConnectionHandle& handle) const {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    return operation.result;
+}
+void Palma::ReadPalmaPlayLog() {}
+
+void Palma::ResetPalmaPlayLog() {}
+
+void Palma::SetIsPalmaAllConnectable(bool is_all_connectable) {
+    // If true controllers are able to be paired
+    is_connectable = is_all_connectable;
+}
+
+void Palma::SetIsPalmaPairedConnectable() {}
+
+Result Palma::PairPalma(const PalmaConnectionHandle& handle) {
+    if (handle.npad_id != active_handle.npad_id) {
+        return InvalidPalmaHandle;
+    }
+    // TODO: Do something
+    return ResultSuccess;
+}
+
+void Palma::SetPalmaBoostMode(bool boost_mode) {}
+
+void Palma::CancelWritePalmaWaveEntry() {}
+
+void Palma::EnablePalmaBoostMode() {}
+
+void Palma::GetPalmaBluetoothAddress() {}
+
+void Palma::SetDisallowedPalmaConnection() {}
+
+} // namespace Service::HID

src/hid_core/resources/palma/palma.h

@@ -0,0 +1,185 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <span>
+
+#include "common/common_funcs.h"
+#include "common/typed_address.h"
+#include "hid_core/hid_result.h"
+#include "hid_core/hid_types.h"
+#include "hid_core/resources/controller_base.h"
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Service::KernelHelpers {
+class ServiceContext;
+}
+
+namespace Core::HID {
+class EmulatedController;
+} // namespace Core::HID
+
+namespace Service::HID {
+class Palma final : public ControllerBase {
+public:
+    using PalmaOperationData = std::array<u8, 0x140>;
+    using PalmaApplicationSection = std::array<u8, 0x100>;
+    using Address = std::array<u8, 0x6>;
+
+    // This is nn::hid::PalmaOperationType
+    enum class PalmaOperationType : u64 {
+        PlayActivity,
+        SetFrModeType,
+        ReadStep,
+        EnableStep,
+        ResetStep,
+        ReadApplicationSection,
+        WriteApplicationSection,
+        ReadUniqueCode,
+        SetUniqueCodeInvalid,
+        WriteActivityEntry,
+        WriteRgbLedPatternEntry,
+        WriteWaveEntry,
+        ReadDataBaseIdentificationVersion,
+        WriteDataBaseIdentificationVersion,
+        SuspendFeature,
+        ReadPlayLog,
+        ResetPlayLog,
+    };
+
+    enum class PackedPalmaOperationType : u32 {
+        PlayActivity,
+        SetFrModeType,
+        ReadStep,
+        EnableStep,
+        ResetStep,
+        ReadApplicationSection,
+        WriteApplicationSection,
+        ReadUniqueCode,
+        SetUniqueCodeInvalid,
+        WriteActivityEntry,
+        WriteRgbLedPatternEntry,
+        WriteWaveEntry,
+        ReadDataBaseIdentificationVersion,
+        WriteDataBaseIdentificationVersion,
+        SuspendFeature,
+        ReadPlayLog,
+        ResetPlayLog,
+    };
+
+    // This is nn::hid::PalmaWaveSet
+    enum class PalmaWaveSet : u64 {
+        Small,
+        Medium,
+        Large,
+    };
+
+    // This is nn::hid::PalmaFrModeType
+    enum class PalmaFrModeType : u64 {
+        Off,
+        B01,
+        B02,
+        B03,
+        Downloaded,
+    };
+
+    // This is nn::hid::PalmaFeature
+    enum class PalmaFeature : u64 {
+        FrMode,
+        RumbleFeedback,
+        Step,
+        MuteSwitch,
+    };
+
+    // This is nn::hid::PalmaOperationInfo
+    struct PalmaOperationInfo {
+        PackedPalmaOperationType operation{};
+        Result result{PalmaResultSuccess};
+        PalmaOperationData data{};
+    };
+    static_assert(sizeof(PalmaOperationInfo) == 0x148, "PalmaOperationInfo is an invalid size");
+
+    // This is nn::hid::PalmaActivityEntry
+    struct PalmaActivityEntry {
+        u32 rgb_led_pattern_index;
+        INSERT_PADDING_BYTES(2);
+        PalmaWaveSet wave_set;
+        u32 wave_index;
+        INSERT_PADDING_BYTES(12);
+    };
+    static_assert(sizeof(PalmaActivityEntry) == 0x20, "PalmaActivityEntry is an invalid size");
+
+    struct PalmaConnectionHandle {
+        alignas(8) Core::HID::NpadIdType npad_id;
+    };
+    static_assert(sizeof(PalmaConnectionHandle) == 0x8,
+                  "PalmaConnectionHandle has incorrect size.");
+
+    explicit Palma(Core::HID::HIDCore& hid_core_, KernelHelpers::ServiceContext& service_context_);
+    ~Palma() override;
+
+    // Called when the controller is initialized
+    void OnInit() override;
+
+    // When the controller is released
+    void OnRelease() override;
+
+    // When the controller is requesting an update for the shared memory
+    void OnUpdate(const Core::Timing::CoreTiming& core_timing) override;
+
+    Result GetPalmaConnectionHandle(Core::HID::NpadIdType npad_id, PalmaConnectionHandle& handle);
+    Result InitializePalma(const PalmaConnectionHandle& handle);
+    Kernel::KReadableEvent& AcquirePalmaOperationCompleteEvent(
+        const PalmaConnectionHandle& handle) const;
+    Result GetPalmaOperationInfo(const PalmaConnectionHandle& handle,
+                                 PalmaOperationType& operation_type, std::span<u8> out_data) const;
+    Result PlayPalmaActivity(const PalmaConnectionHandle& handle, u64 palma_activity);
+    Result SetPalmaFrModeType(const PalmaConnectionHandle& handle, PalmaFrModeType fr_mode_);
+    Result ReadPalmaStep(const PalmaConnectionHandle& handle);
+    Result EnablePalmaStep(const PalmaConnectionHandle& handle, bool is_enabled);
+    Result ResetPalmaStep(const PalmaConnectionHandle& handle);
+    Result ReadPalmaUniqueCode(const PalmaConnectionHandle& handle);
+    Result SetPalmaUniqueCodeInvalid(const PalmaConnectionHandle& handle);
+    Result WritePalmaRgbLedPatternEntry(const PalmaConnectionHandle& handle, u64 unknown);
+    Result WritePalmaWaveEntry(const PalmaConnectionHandle& handle, PalmaWaveSet wave,
+                               Common::ProcessAddress t_mem, u64 size);
+    Result SetPalmaDataBaseIdentificationVersion(const PalmaConnectionHandle& handle,
+                                                 s32 database_id_version_);
+    Result GetPalmaDataBaseIdentificationVersion(const PalmaConnectionHandle& handle);
+    Result GetPalmaOperationResult(const PalmaConnectionHandle& handle) const;
+    void SetIsPalmaAllConnectable(bool is_all_connectable);
+    Result PairPalma(const PalmaConnectionHandle& handle);
+    void SetPalmaBoostMode(bool boost_mode);
+
+private:
+    void ReadPalmaApplicationSection();
+    void WritePalmaApplicationSection();
+    void WritePalmaActivityEntry();
+    void SuspendPalmaFeature();
+    void ReadPalmaPlayLog();
+    void ResetPalmaPlayLog();
+    void SetIsPalmaPairedConnectable();
+    void CancelWritePalmaWaveEntry();
+    void EnablePalmaBoostMode();
+    void GetPalmaBluetoothAddress();
+    void SetDisallowedPalmaConnection();
+
+    bool is_connectable{};
+    s32 database_id_version{};
+    PalmaOperationInfo operation{};
+    PalmaFrModeType fr_mode{};
+    PalmaConnectionHandle active_handle{};
+
+    Core::HID::EmulatedController* controller;
+
+    Kernel::KEvent* operation_complete_event;
+    KernelHelpers::ServiceContext& service_context;
+};
+
+} // namespace Service::HID