hid_core: Move hid to it's own subproject

src/hid_core/resources/npad/npad.h

@@ -0,0 +1,214 @@
+// 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/controller_base.h"
+#include "hid_core/resources/npad/npad_resource.h"
+#include "hid_core/resources/npad/npad_types.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
+
+union Result;
+
+namespace Service::HID {
+class AppletResource;
+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);
+
+    // 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);
+
+    bool VibrateControllerAtIndex(u64 aruid, Core::HID::NpadIdType npad_id,
+                                  std::size_t device_index,
+                                  const Core::HID::VibrationValue& vibration_value);
+
+    void VibrateController(u64 aruid,
+                           const Core::HID::VibrationDeviceHandle& vibration_device_handle,
+                           const Core::HID::VibrationValue& vibration_value);
+
+    void VibrateControllers(
+        u64 aruid, std::span<const Core::HID::VibrationDeviceHandle> vibration_device_handles,
+        std::span<const Core::HID::VibrationValue> vibration_values);
+
+    Core::HID::VibrationValue GetLastVibration(
+        u64 aruid, const Core::HID::VibrationDeviceHandle& vibration_device_handle) const;
+
+    void InitializeVibrationDevice(const Core::HID::VibrationDeviceHandle& vibration_device_handle);
+
+    void InitializeVibrationDeviceAtIndex(u64 aruid, Core::HID::NpadIdType npad_id,
+                                          std::size_t device_index);
+
+    void SetPermitVibrationSession(bool permit_vibration_session);
+
+    bool IsVibrationDeviceMounted(
+        u64 aruid, const Core::HID::VibrationDeviceHandle& vibration_device_handle) const;
+
+    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 GetLedPattern(Core::HID::NpadIdType npad_id, Core::HID::LedPattern& pattern) const;
+
+    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);
+
+    AppletDetailedUiType GetAppletDetailedUiType(Core::HID::NpadIdType npad_id);
+
+private:
+    struct VibrationData {
+        bool device_mounted{};
+        Core::HID::VibrationValue latest_vibration_value{};
+        std::chrono::steady_clock::time_point last_vibration_timepoint{};
+    };
+
+    struct NpadControllerData {
+        NpadInternalState* shared_memory = nullptr;
+        Core::HID::EmulatedController* device = nullptr;
+
+        std::array<VibrationData, 2> vibration{};
+        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::VibrationDeviceHandle& device_handle);
+    const NpadControllerData& GetControllerFromHandle(
+        u64 aruid, const Core::HID::VibrationDeviceHandle& device_handle) const;
+    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{};
+    Kernel::KEvent* input_event{nullptr};
+    std::mutex* input_mutex{nullptr};
+
+    std::atomic<u64> press_state{};
+    bool permit_vibration_session_enabled;
+    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::ProController:
+        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 +1,685 @@
+// 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;
+        }
+        if (registration_list.flag[i] == RegistrationStatus::None) {
+            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);
+
+    DestroyStyleSetUpdateEvents(aruid);
+    if (aruid_index < AruidIndexMax) {
+        state[aruid_index] = {};
+        registration_list.flag[aruid_index] = RegistrationStatus::PendingDelete;
+    }
+}
+
+void NPadResource::DestroyStyleSetUpdateEvents(u64 aruid) {
+    const u64 aruid_index = GetIndexFromAruid(aruid);
+
+    if (aruid_index >= AruidIndexMax) {
+        return;
+    }
+
+    for (auto& controller_state : state[aruid_index].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 DestroyStyleSetUpdateEvents(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 +1,255 @@
+// 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 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,
+};
+
+} // namespace Service::HID