7 files changed, 937 insertions, 73 deletions

diff --git a/src/core/hle/service/am/am.cpp b/src/core/hle/service/am/am.cpp
index a17c46121..e59de844c 100644
--- a/src/core/hle/service/am/am.cpp
+++ b/src/core/hle/service/am/am.cpp
@@ -1807,7 +1807,7 @@ void IApplicationFunctions::GetFriendInvitationStorageChannelEvent(HLERequestCon
 }
 
 void IApplicationFunctions::TryPopFromFriendInvitationStorageChannel(HLERequestContext& ctx) {
-    LOG_WARNING(Service_AM, "(STUBBED) called");
+    LOG_DEBUG(Service_AM, "(STUBBED) called");
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(AM::ResultNoDataInChannel);
diff --git a/src/core/hle/service/nfp/nfp.cpp b/src/core/hle/service/nfp/nfp.cpp
index e262dc2f2..2714f4bea 100644
--- a/src/core/hle/service/nfp/nfp.cpp
+++ b/src/core/hle/service/nfp/nfp.cpp
@@ -4,11 +4,138 @@
 #include "common/logging/log.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/nfp/nfp.h"
-#include "core/hle/service/nfp/nfp_user.h"
+#include "core/hle/service/nfp/nfp_interface.h"
 #include "core/hle/service/server_manager.h"
 
 namespace Service::NFP {
 
+class IUser final : public Interface {
+public:
+    explicit IUser(Core::System& system_) : Interface(system_, "NFP:IUser") {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IUser::Initialize, "Initialize"},
+            {1, &IUser::Finalize, "Finalize"},
+            {2, &IUser::ListDevices, "ListDevices"},
+            {3, &IUser::StartDetection, "StartDetection"},
+            {4, &IUser::StopDetection, "StopDetection"},
+            {5, &IUser::Mount, "Mount"},
+            {6, &IUser::Unmount, "Unmount"},
+            {7, &IUser::OpenApplicationArea, "OpenApplicationArea"},
+            {8, &IUser::GetApplicationArea, "GetApplicationArea"},
+            {9, &IUser::SetApplicationArea, "SetApplicationArea"},
+            {10, &IUser::Flush, "Flush"},
+            {11, &IUser::Restore, "Restore"},
+            {12, &IUser::CreateApplicationArea, "CreateApplicationArea"},
+            {13, &IUser::GetTagInfo, "GetTagInfo"},
+            {14, &IUser::GetRegisterInfo, "GetRegisterInfo"},
+            {15, &IUser::GetCommonInfo, "GetCommonInfo"},
+            {16, &IUser::GetModelInfo, "GetModelInfo"},
+            {17, &IUser::AttachActivateEvent, "AttachActivateEvent"},
+            {18, &IUser::AttachDeactivateEvent, "AttachDeactivateEvent"},
+            {19, &IUser::GetState, "GetState"},
+            {20, &IUser::GetDeviceState, "GetDeviceState"},
+            {21, &IUser::GetNpadId, "GetNpadId"},
+            {22, &IUser::GetApplicationAreaSize, "GetApplicationAreaSize"},
+            {23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
+            {24, &IUser::RecreateApplicationArea, "RecreateApplicationArea"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class ISystem final : public Interface {
+public:
+    explicit ISystem(Core::System& system_) : Interface(system_, "NFP:ISystem") {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &ISystem::InitializeSystem, "InitializeSystem"},
+            {1, &ISystem::FinalizeSystem, "FinalizeSystem"},
+            {2, &ISystem::ListDevices, "ListDevices"},
+            {3, &ISystem::StartDetection, "StartDetection"},
+            {4, &ISystem::StopDetection, "StopDetection"},
+            {5, &ISystem::Mount, "Mount"},
+            {6, &ISystem::Unmount, "Unmount"},
+            {10, &ISystem::Flush, "Flush"},
+            {11, &ISystem::Restore, "Restore"},
+            {12, &ISystem::CreateApplicationArea, "CreateApplicationArea"},
+            {13, &ISystem::GetTagInfo, "GetTagInfo"},
+            {14, &ISystem::GetRegisterInfo, "GetRegisterInfo"},
+            {15, &ISystem::GetCommonInfo, "GetCommonInfo"},
+            {16, &ISystem::GetModelInfo, "GetModelInfo"},
+            {17, &ISystem::AttachActivateEvent, "AttachActivateEvent"},
+            {18, &ISystem::AttachDeactivateEvent, "AttachDeactivateEvent"},
+            {19, &ISystem::GetState, "GetState"},
+            {20, &ISystem::GetDeviceState, "GetDeviceState"},
+            {21, &ISystem::GetNpadId, "GetNpadId"},
+            {23, &ISystem::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
+            {100, &ISystem::Format, "Format"},
+            {101, &ISystem::GetAdminInfo, "GetAdminInfo"},
+            {102, &ISystem::GetRegisterInfoPrivate, "GetRegisterInfoPrivate"},
+            {103, &ISystem::SetRegisterInfoPrivate, "SetRegisterInfoPrivate"},
+            {104, &ISystem::DeleteRegisterInfo, "DeleteRegisterInfo"},
+            {105, &ISystem::DeleteApplicationArea, "DeleteApplicationArea"},
+            {106, &ISystem::ExistsApplicationArea, "ExistsApplicationArea"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class IDebug final : public Interface {
+public:
+    explicit IDebug(Core::System& system_) : Interface(system_, "NFP:IDebug") {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDebug::InitializeDebug, "InitializeDebug"},
+            {1, &IDebug::FinalizeDebug, "FinalizeDebug"},
+            {2, &IDebug::ListDevices, "ListDevices"},
+            {3, &IDebug::StartDetection, "StartDetection"},
+            {4, &IDebug::StopDetection, "StopDetection"},
+            {5, &IDebug::Mount, "Mount"},
+            {6, &IDebug::Unmount, "Unmount"},
+            {7, &IDebug::OpenApplicationArea, "OpenApplicationArea"},
+            {8, &IDebug::GetApplicationArea, "GetApplicationArea"},
+            {9, &IDebug::SetApplicationArea, "SetApplicationArea"},
+            {10, &IDebug::Flush, "Flush"},
+            {11, &IDebug::Restore, "Restore"},
+            {12, &IDebug::CreateApplicationArea, "CreateApplicationArea"},
+            {13, &IDebug::GetTagInfo, "GetTagInfo"},
+            {14, &IDebug::GetRegisterInfo, "GetRegisterInfo"},
+            {15, &IDebug::GetCommonInfo, "GetCommonInfo"},
+            {16, &IDebug::GetModelInfo, "GetModelInfo"},
+            {17, &IDebug::AttachActivateEvent, "AttachActivateEvent"},
+            {18, &IDebug::AttachDeactivateEvent, "AttachDeactivateEvent"},
+            {19, &IDebug::GetState, "GetState"},
+            {20, &IDebug::GetDeviceState, "GetDeviceState"},
+            {21, &IDebug::GetNpadId, "GetNpadId"},
+            {22, &IDebug::GetApplicationAreaSize, "GetApplicationAreaSize"},
+            {23, &IDebug::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
+            {24, &IDebug::RecreateApplicationArea, "RecreateApplicationArea"},
+            {100, &IDebug::Format, "Format"},
+            {101, &IDebug::GetAdminInfo, "GetAdminInfo"},
+            {102, &IDebug::GetRegisterInfoPrivate, "GetRegisterInfoPrivate"},
+            {103, &IDebug::SetRegisterInfoPrivate, "SetRegisterInfoPrivate"},
+            {104, &IDebug::DeleteRegisterInfo, "DeleteRegisterInfo"},
+            {105, &IDebug::DeleteApplicationArea, "DeleteApplicationArea"},
+            {106, &IDebug::ExistsApplicationArea, "ExistsApplicationArea"},
+            {200, &IDebug::GetAll, "GetAll"},
+            {201, &IDebug::SetAll, "SetAll"},
+            {202, &IDebug::FlushDebug, "FlushDebug"},
+            {203, &IDebug::BreakTag, "BreakTag"},
+            {204, nullptr, "ReadBackupData"},
+            {205, nullptr, "WriteBackupData"},
+            {206, nullptr, "WriteNtf"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
 class IUserManager final : public ServiceFramework<IUserManager> {
 public:
     explicit IUserManager(Core::System& system_) : ServiceFramework{system_, "nfp:user"} {
@@ -37,10 +164,68 @@ private:
     std::shared_ptr<IUser> user_interface;
 };
 
+class ISystemManager final : public ServiceFramework<ISystemManager> {
+public:
+    explicit ISystemManager(Core::System& system_) : ServiceFramework{system_, "nfp:sys"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &ISystemManager::CreateSystemInterface, "CreateSystemInterface"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void CreateSystemInterface(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_NFP, "called");
+
+        if (system_interface == nullptr) {
+            system_interface = std::make_shared<ISystem>(system);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<ISystem>(system_interface);
+    }
+
+    std::shared_ptr<ISystem> system_interface;
+};
+
+class IDebugManager final : public ServiceFramework<IDebugManager> {
+public:
+    explicit IDebugManager(Core::System& system_) : ServiceFramework{system_, "nfp:dbg"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IDebugManager::CreateDebugInterface, "CreateDebugInterface"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+private:
+    void CreateDebugInterface(HLERequestContext& ctx) {
+        LOG_DEBUG(Service_NFP, "called");
+
+        if (system_interface == nullptr) {
+            system_interface = std::make_shared<IDebug>(system);
+        }
+
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(ResultSuccess);
+        rb.PushIpcInterface<IDebug>(system_interface);
+    }
+
+    std::shared_ptr<IDebug> system_interface;
+};
+
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
     server_manager->RegisterNamedService("nfp:user", std::make_shared<IUserManager>(system));
+    server_manager->RegisterNamedService("nfp:sys", std::make_shared<ISystemManager>(system));
+    server_manager->RegisterNamedService("nfp:dbg", std::make_shared<IDebugManager>(system));
     ServerManager::RunServer(std::move(server_manager));
 }
 
diff --git a/src/core/hle/service/nfp/nfp_device.cpp b/src/core/hle/service/nfp/nfp_device.cpp
index 607e70968..3f9af53c8 100644
--- a/src/core/hle/service/nfp/nfp_device.cpp
+++ b/src/core/hle/service/nfp/nfp_device.cpp
@@ -29,7 +29,6 @@
 #include "core/hle/service/nfp/amiibo_crypto.h"
 #include "core/hle/service/nfp/nfp_device.h"
 #include "core/hle/service/nfp/nfp_result.h"
-#include "core/hle/service/nfp/nfp_user.h"
 #include "core/hle/service/time/time_manager.h"
 #include "core/hle/service/time/time_zone_content_manager.h"
 #include "core/hle/service/time/time_zone_types.h"
@@ -241,6 +240,42 @@ Result NfpDevice::Flush() {
 
     tag_data.write_counter++;
 
+    FlushWithBreak(BreakType::Normal);
+
+    is_data_moddified = false;
+
+    return ResultSuccess;
+}
+
+Result NfpDevice::FlushDebug() {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return TagRemoved;
+        }
+        return WrongDeviceState;
+    }
+
+    if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+        LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
+        return WrongDeviceState;
+    }
+
+    tag_data.write_counter++;
+
+    FlushWithBreak(BreakType::Normal);
+
+    is_data_moddified = false;
+
+    return ResultSuccess;
+}
+
+Result NfpDevice::FlushWithBreak(BreakType break_type) {
+    if (break_type != BreakType::Normal) {
+        LOG_ERROR(Service_NFC, "Break type not implemented {}", break_type);
+        return WrongDeviceState;
+    }
+
     std::vector<u8> data(sizeof(EncryptedNTAG215File));
     if (is_plain_amiibo) {
         memcpy(data.data(), &tag_data, sizeof(tag_data));
@@ -258,8 +293,6 @@ Result NfpDevice::Flush() {
         return WriteAmiiboFailed;
     }
 
-    is_data_moddified = false;
-
     return ResultSuccess;
 }
 
@@ -417,6 +450,38 @@ Result NfpDevice::GetRegisterInfo(RegisterInfo& register_info) const {
     return ResultSuccess;
 }
 
+Result NfpDevice::GetRegisterInfoPrivate(RegisterInfoPrivate& register_info) const {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return TagRemoved;
+        }
+        return WrongDeviceState;
+    }
+
+    if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+        LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
+        return WrongDeviceState;
+    }
+
+    if (tag_data.settings.settings.amiibo_initialized == 0) {
+        return RegistrationIsNotInitialized;
+    }
+
+    Service::Mii::MiiManager manager;
+    const auto& settings = tag_data.settings;
+
+    // TODO: Validate and complete this data
+    register_info = {
+        .mii_store_data = {},
+        .creation_date = settings.init_date.GetWriteDate(),
+        .amiibo_name = GetAmiiboName(settings),
+        .font_region = settings.settings.font_region,
+    };
+
+    return ResultSuccess;
+}
+
 Result NfpDevice::GetAdminInfo(AdminInfo& admin_info) const {
     if (device_state != DeviceState::TagMounted) {
         LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
@@ -807,6 +872,159 @@ Result NfpDevice::DeleteApplicationArea() {
     return Flush();
 }
 
+Result NfpDevice::ExistApplicationArea(bool& has_application_area) {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return TagRemoved;
+        }
+        return WrongDeviceState;
+    }
+
+    if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+        LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
+        return WrongDeviceState;
+    }
+
+    has_application_area = tag_data.settings.settings.appdata_initialized.Value() != 0;
+
+    return ResultSuccess;
+}
+
+Result NfpDevice::GetAll(NfpData& data) const {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return TagRemoved;
+        }
+        return WrongDeviceState;
+    }
+
+    if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+        LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
+        return WrongDeviceState;
+    }
+
+    CommonInfo common_info{};
+    Service::Mii::MiiManager manager;
+    const u64 application_id = tag_data.application_id;
+
+    GetCommonInfo(common_info);
+
+    data = {
+        .magic = tag_data.constant_value,
+        .write_counter = tag_data.write_counter,
+        .settings_crc = tag_data.settings.crc,
+        .common_info = common_info,
+        .mii_char_info = tag_data.owner_mii,
+        .mii_store_data_extension = tag_data.mii_extension,
+        .creation_date = tag_data.settings.init_date.GetWriteDate(),
+        .amiibo_name = tag_data.settings.amiibo_name,
+        .amiibo_name_null_terminated = 0,
+        .settings = tag_data.settings.settings,
+        .unknown1 = tag_data.unknown,
+        .register_info_crc = tag_data.register_info_crc,
+        .unknown2 = tag_data.unknown2,
+        .application_id = application_id,
+        .access_id = tag_data.application_area_id,
+        .settings_crc_counter = tag_data.settings.crc_counter,
+        .font_region = tag_data.settings.settings.font_region,
+        .tag_type = PackedTagType::Type2,
+        .console_type =
+            static_cast<AppAreaVersion>(application_id >> application_id_version_offset & 0xf),
+        .application_id_byte = tag_data.application_id_byte,
+        .application_area = tag_data.application_area,
+    };
+
+    return ResultSuccess;
+}
+
+Result NfpDevice::SetAll(const NfpData& data) {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return TagRemoved;
+        }
+        return WrongDeviceState;
+    }
+
+    if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+        LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
+        return WrongDeviceState;
+    }
+
+    tag_data.constant_value = data.magic;
+    tag_data.write_counter = data.write_counter;
+    tag_data.settings.crc = data.settings_crc;
+    tag_data.settings.write_date.SetWriteDate(data.common_info.last_write_date);
+    tag_data.write_counter = data.common_info.write_counter;
+    tag_data.amiibo_version = data.common_info.version;
+    tag_data.owner_mii = data.mii_char_info;
+    tag_data.mii_extension = data.mii_store_data_extension;
+    tag_data.settings.init_date.SetWriteDate(data.creation_date);
+    tag_data.settings.amiibo_name = data.amiibo_name;
+    tag_data.settings.settings = data.settings;
+    tag_data.unknown = data.unknown1;
+    tag_data.register_info_crc = data.register_info_crc;
+    tag_data.unknown2 = data.unknown2;
+    tag_data.application_id = data.application_id;
+    tag_data.application_area_id = data.access_id;
+    tag_data.settings.crc_counter = data.settings_crc_counter;
+    tag_data.settings.settings.font_region.Assign(data.font_region);
+    tag_data.application_id_byte = data.application_id_byte;
+    tag_data.application_area = data.application_area;
+
+    return ResultSuccess;
+}
+
+Result NfpDevice::BreakTag(BreakType break_type) {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return TagRemoved;
+        }
+        return WrongDeviceState;
+    }
+
+    if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+        LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
+        return WrongDeviceState;
+    }
+
+    // TODO: Complete this implementation
+
+    return FlushWithBreak(break_type);
+}
+
+Result NfpDevice::ReadBackupData() {
+    // Not implemented
+    return ResultSuccess;
+}
+
+Result NfpDevice::WriteBackupData() {
+    // Not implemented
+    return ResultSuccess;
+}
+
+Result NfpDevice::WriteNtf() {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return TagRemoved;
+        }
+        return WrongDeviceState;
+    }
+
+    if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+        LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
+        return WrongDeviceState;
+    }
+
+    // Not implemented
+
+    return ResultSuccess;
+}
+
 u64 NfpDevice::GetHandle() const {
     // Generate a handle based of the npad id
     return static_cast<u64>(npad_id);
diff --git a/src/core/hle/service/nfp/nfp_device.h b/src/core/hle/service/nfp/nfp_device.h
index 7f963730d..bab05538a 100644
--- a/src/core/hle/service/nfp/nfp_device.h
+++ b/src/core/hle/service/nfp/nfp_device.h
@@ -41,12 +41,16 @@ public:
     Result StopDetection();
     Result Mount(MountTarget mount_target);
     Result Unmount();
+
     Result Flush();
+    Result FlushDebug();
+    Result FlushWithBreak(BreakType break_type);
 
     Result GetTagInfo(TagInfo& tag_info) const;
     Result GetCommonInfo(CommonInfo& common_info) const;
     Result GetModelInfo(ModelInfo& model_info) const;
     Result GetRegisterInfo(RegisterInfo& register_info) const;
+    Result GetRegisterInfoPrivate(RegisterInfoPrivate& register_info) const;
     Result GetAdminInfo(AdminInfo& admin_info) const;
 
     Result DeleteRegisterInfo();
@@ -61,6 +65,14 @@ public:
     Result CreateApplicationArea(u32 access_id, std::span<const u8> data);
     Result RecreateApplicationArea(u32 access_id, std::span<const u8> data);
     Result DeleteApplicationArea();
+    Result ExistApplicationArea(bool& has_application_area);
+
+    Result GetAll(NfpData& data) const;
+    Result SetAll(const NfpData& data);
+    Result BreakTag(BreakType break_type);
+    Result ReadBackupData();
+    Result WriteBackupData();
+    Result WriteNtf();
 
     u64 GetHandle() const;
     u32 GetApplicationAreaSize() const;
diff --git a/src/core/hle/service/nfp/nfp_user.cpp b/src/core/hle/service/nfp/nfp_interface.cpp
index 4e8534113..2ed8bb1ba 100644
--- a/src/core/hle/service/nfp/nfp_user.cpp
+++ b/src/core/hle/service/nfp/nfp_interface.cpp
@@ -7,42 +7,13 @@
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/nfp/nfp_device.h"
+#include "core/hle/service/nfp/nfp_interface.h"
 #include "core/hle/service/nfp/nfp_result.h"
-#include "core/hle/service/nfp/nfp_user.h"
 
 namespace Service::NFP {
 
-IUser::IUser(Core::System& system_)
-    : ServiceFramework{system_, "NFP::IUser"}, service_context{system_, service_name} {
-    static const FunctionInfo functions[] = {
-        {0, &IUser::Initialize, "Initialize"},
-        {1, &IUser::Finalize, "Finalize"},
-        {2, &IUser::ListDevices, "ListDevices"},
-        {3, &IUser::StartDetection, "StartDetection"},
-        {4, &IUser::StopDetection, "StopDetection"},
-        {5, &IUser::Mount, "Mount"},
-        {6, &IUser::Unmount, "Unmount"},
-        {7, &IUser::OpenApplicationArea, "OpenApplicationArea"},
-        {8, &IUser::GetApplicationArea, "GetApplicationArea"},
-        {9, &IUser::SetApplicationArea, "SetApplicationArea"},
-        {10, &IUser::Flush, "Flush"},
-        {11, &IUser::Restore, "Restore"},
-        {12, &IUser::CreateApplicationArea, "CreateApplicationArea"},
-        {13, &IUser::GetTagInfo, "GetTagInfo"},
-        {14, &IUser::GetRegisterInfo, "GetRegisterInfo"},
-        {15, &IUser::GetCommonInfo, "GetCommonInfo"},
-        {16, &IUser::GetModelInfo, "GetModelInfo"},
-        {17, &IUser::AttachActivateEvent, "AttachActivateEvent"},
-        {18, &IUser::AttachDeactivateEvent, "AttachDeactivateEvent"},
-        {19, &IUser::GetState, "GetState"},
-        {20, &IUser::GetDeviceState, "GetDeviceState"},
-        {21, &IUser::GetNpadId, "GetNpadId"},
-        {22, &IUser::GetApplicationAreaSize, "GetApplicationAreaSize"},
-        {23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
-        {24, &IUser::RecreateApplicationArea, "RecreateApplicationArea"},
-    };
-    RegisterHandlers(functions);
-
+Interface::Interface(Core::System& system_, const char* name)
+    : ServiceFramework{system_, name}, service_context{system_, service_name} {
     availability_change_event = service_context.CreateEvent("IUser:AvailabilityChangeEvent");
 
     for (u32 device_index = 0; device_index < 10; device_index++) {
@@ -52,11 +23,37 @@ IUser::IUser(Core::System& system_)
     }
 }
 
-IUser ::~IUser() {
+Interface::~Interface() {
     availability_change_event->Close();
 }
 
-void IUser::Initialize(HLERequestContext& ctx) {
+void Interface::Initialize(HLERequestContext& ctx) {
+    LOG_INFO(Service_NFP, "called");
+
+    state = State::Initialized;
+
+    for (auto& device : devices) {
+        device->Initialize();
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void Interface::InitializeSystem(HLERequestContext& ctx) {
+    LOG_INFO(Service_NFP, "called");
+
+    state = State::Initialized;
+
+    for (auto& device : devices) {
+        device->Initialize();
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void Interface::InitializeDebug(HLERequestContext& ctx) {
     LOG_INFO(Service_NFP, "called");
 
     state = State::Initialized;
@@ -69,7 +66,7 @@ void IUser::Initialize(HLERequestContext& ctx) {
     rb.Push(ResultSuccess);
 }
 
-void IUser::Finalize(HLERequestContext& ctx) {
+void Interface::Finalize(HLERequestContext& ctx) {
     LOG_INFO(Service_NFP, "called");
 
     state = State::NonInitialized;
@@ -82,7 +79,33 @@ void IUser::Finalize(HLERequestContext& ctx) {
     rb.Push(ResultSuccess);
 }
 
-void IUser::ListDevices(HLERequestContext& ctx) {
+void Interface::FinalizeSystem(HLERequestContext& ctx) {
+    LOG_INFO(Service_NFP, "called");
+
+    state = State::NonInitialized;
+
+    for (auto& device : devices) {
+        device->Finalize();
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void Interface::FinalizeDebug(HLERequestContext& ctx) {
+    LOG_INFO(Service_NFP, "called");
+
+    state = State::NonInitialized;
+
+    for (auto& device : devices) {
+        device->Finalize();
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void Interface::ListDevices(HLERequestContext& ctx) {
     LOG_DEBUG(Service_NFP, "called");
 
     if (state == State::NonInitialized) {
@@ -128,7 +151,7 @@ void IUser::ListDevices(HLERequestContext& ctx) {
     rb.Push(static_cast<s32>(nfp_devices.size()));
 }
 
-void IUser::StartDetection(HLERequestContext& ctx) {
+void Interface::StartDetection(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     const auto nfp_protocol{rp.PopEnum<TagProtocol>()};
@@ -153,7 +176,7 @@ void IUser::StartDetection(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::StopDetection(HLERequestContext& ctx) {
+void Interface::StopDetection(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
@@ -177,7 +200,7 @@ void IUser::StopDetection(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::Mount(HLERequestContext& ctx) {
+void Interface::Mount(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     const auto model_type{rp.PopEnum<ModelType>()};
@@ -204,7 +227,7 @@ void IUser::Mount(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::Unmount(HLERequestContext& ctx) {
+void Interface::Unmount(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
@@ -228,7 +251,7 @@ void IUser::Unmount(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::OpenApplicationArea(HLERequestContext& ctx) {
+void Interface::OpenApplicationArea(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     const auto access_id{rp.Pop<u32>()};
@@ -253,7 +276,7 @@ void IUser::OpenApplicationArea(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::GetApplicationArea(HLERequestContext& ctx) {
+void Interface::GetApplicationArea(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     const auto data_size = ctx.GetWriteBufferSize();
@@ -287,7 +310,7 @@ void IUser::GetApplicationArea(HLERequestContext& ctx) {
     rb.Push(static_cast<u32>(data_size));
 }
 
-void IUser::SetApplicationArea(HLERequestContext& ctx) {
+void Interface::SetApplicationArea(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     const auto data{ctx.ReadBuffer()};
@@ -318,7 +341,7 @@ void IUser::SetApplicationArea(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::Flush(HLERequestContext& ctx) {
+void Interface::Flush(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
@@ -342,7 +365,7 @@ void IUser::Flush(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::Restore(HLERequestContext& ctx) {
+void Interface::Restore(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}", device_handle);
@@ -366,7 +389,7 @@ void IUser::Restore(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::CreateApplicationArea(HLERequestContext& ctx) {
+void Interface::CreateApplicationArea(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     const auto access_id{rp.Pop<u32>()};
@@ -399,7 +422,7 @@ void IUser::CreateApplicationArea(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::GetTagInfo(HLERequestContext& ctx) {
+void Interface::GetTagInfo(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
@@ -425,7 +448,7 @@ void IUser::GetTagInfo(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::GetRegisterInfo(HLERequestContext& ctx) {
+void Interface::GetRegisterInfo(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
@@ -451,7 +474,7 @@ void IUser::GetRegisterInfo(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::GetCommonInfo(HLERequestContext& ctx) {
+void Interface::GetCommonInfo(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
@@ -477,7 +500,7 @@ void IUser::GetCommonInfo(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::GetModelInfo(HLERequestContext& ctx) {
+void Interface::GetModelInfo(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
@@ -503,7 +526,7 @@ void IUser::GetModelInfo(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-void IUser::AttachActivateEvent(HLERequestContext& ctx) {
+void Interface::AttachActivateEvent(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
@@ -527,7 +550,7 @@ void IUser::AttachActivateEvent(HLERequestContext& ctx) {
     rb.PushCopyObjects(device.value()->GetActivateEvent());
 }
 
-void IUser::AttachDeactivateEvent(HLERequestContext& ctx) {
+void Interface::AttachDeactivateEvent(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
@@ -551,7 +574,7 @@ void IUser::AttachDeactivateEvent(HLERequestContext& ctx) {
     rb.PushCopyObjects(device.value()->GetDeactivateEvent());
 }
 
-void IUser::GetState(HLERequestContext& ctx) {
+void Interface::GetState(HLERequestContext& ctx) {
     LOG_DEBUG(Service_NFP, "called");
 
     IPC::ResponseBuilder rb{ctx, 3};
@@ -559,7 +582,7 @@ void IUser::GetState(HLERequestContext& ctx) {
     rb.PushEnum(state);
 }
 
-void IUser::GetDeviceState(HLERequestContext& ctx) {
+void Interface::GetDeviceState(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
@@ -577,7 +600,7 @@ void IUser::GetDeviceState(HLERequestContext& ctx) {
     rb.PushEnum(device.value()->GetCurrentState());
 }
 
-void IUser::GetNpadId(HLERequestContext& ctx) {
+void Interface::GetNpadId(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
@@ -601,7 +624,7 @@ void IUser::GetNpadId(HLERequestContext& ctx) {
     rb.PushEnum(device.value()->GetNpadId());
 }
 
-void IUser::GetApplicationAreaSize(HLERequestContext& ctx) {
+void Interface::GetApplicationAreaSize(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
@@ -619,7 +642,7 @@ void IUser::GetApplicationAreaSize(HLERequestContext& ctx) {
     rb.Push(device.value()->GetApplicationAreaSize());
 }
 
-void IUser::AttachAvailabilityChangeEvent(HLERequestContext& ctx) {
+void Interface::AttachAvailabilityChangeEvent(HLERequestContext& ctx) {
     LOG_INFO(Service_NFP, "called");
 
     if (state == State::NonInitialized) {
@@ -633,7 +656,7 @@ void IUser::AttachAvailabilityChangeEvent(HLERequestContext& ctx) {
     rb.PushCopyObjects(availability_change_event->GetReadableEvent());
 }
 
-void IUser::RecreateApplicationArea(HLERequestContext& ctx) {
+void Interface::RecreateApplicationArea(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     const auto access_id{rp.Pop<u32>()};
@@ -660,7 +683,361 @@ void IUser::RecreateApplicationArea(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-std::optional<std::shared_ptr<NfpDevice>> IUser::GetNfpDevice(u64 handle) {
+void Interface::Format(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->Format();
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::GetAdminInfo(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    AdminInfo admin_info{};
+    const auto result = device.value()->GetAdminInfo(admin_info);
+    ctx.WriteBuffer(admin_info);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::GetRegisterInfoPrivate(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    RegisterInfoPrivate register_info{};
+    const auto result = device.value()->GetRegisterInfoPrivate(register_info);
+    ctx.WriteBuffer(register_info);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::SetRegisterInfoPrivate(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto buffer{ctx.ReadBuffer()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}, buffer_size={}", device_handle,
+              buffer.size());
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->SetRegisterInfoPrivate({});
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::DeleteRegisterInfo(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->DeleteRegisterInfo();
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::DeleteApplicationArea(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->DeleteApplicationArea();
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::ExistsApplicationArea(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    bool has_application_area = false;
+    const auto result = device.value()->ExistApplicationArea(has_application_area);
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(result);
+    rb.Push(has_application_area);
+}
+
+void Interface::GetAll(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    NfpData data{};
+    const auto result = device.value()->GetAll(data);
+
+    ctx.WriteBuffer(data);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::SetAll(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto nfp_data{ctx.ReadBuffer()};
+
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    NfpData data{};
+    memcpy(&data, nfp_data.data(), sizeof(NfpData));
+
+    const auto result = device.value()->SetAll(data);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::FlushDebug(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->FlushDebug();
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::BreakTag(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto break_type{rp.PopEnum<BreakType>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}, break_type={}", device_handle, break_type);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->BreakTag(break_type);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::ReadBackupData(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->ReadBackupData();
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::WriteBackupData(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->WriteBackupData();
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void Interface::WriteNtf(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(NfcDisabled);
+        return;
+    }
+
+    auto device = GetNfpDevice(device_handle);
+
+    if (!device.has_value()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(DeviceNotFound);
+        return;
+    }
+
+    const auto result = device.value()->WriteNtf();
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+std::optional<std::shared_ptr<NfpDevice>> Interface::GetNfpDevice(u64 handle) {
     for (auto& device : devices) {
         if (device->GetHandle() == handle) {
             return device;
diff --git a/src/core/hle/service/nfp/nfp_user.h b/src/core/hle/service/nfp/nfp_interface.h
index 1f3ff2ea8..616c94b06 100644
--- a/src/core/hle/service/nfp/nfp_user.h
+++ b/src/core/hle/service/nfp/nfp_interface.h
@@ -13,19 +13,17 @@
 namespace Service::NFP {
 class NfpDevice;
 
-class IUser final : public ServiceFramework<IUser> {
+class Interface : public ServiceFramework<Interface> {
 public:
-    explicit IUser(Core::System& system_);
-    ~IUser();
-
-private:
-    enum class State : u32 {
-        NonInitialized,
-        Initialized,
-    };
+    explicit Interface(Core::System& system_, const char* name);
+    ~Interface() override;
 
     void Initialize(HLERequestContext& ctx);
+    void InitializeSystem(HLERequestContext& ctx);
+    void InitializeDebug(HLERequestContext& ctx);
     void Finalize(HLERequestContext& ctx);
+    void FinalizeSystem(HLERequestContext& ctx);
+    void FinalizeDebug(HLERequestContext& ctx);
     void ListDevices(HLERequestContext& ctx);
     void StartDetection(HLERequestContext& ctx);
     void StopDetection(HLERequestContext& ctx);
@@ -49,6 +47,26 @@ private:
     void GetApplicationAreaSize(HLERequestContext& ctx);
     void AttachAvailabilityChangeEvent(HLERequestContext& ctx);
     void RecreateApplicationArea(HLERequestContext& ctx);
+    void Format(HLERequestContext& ctx);
+    void GetAdminInfo(HLERequestContext& ctx);
+    void GetRegisterInfoPrivate(HLERequestContext& ctx);
+    void SetRegisterInfoPrivate(HLERequestContext& ctx);
+    void DeleteRegisterInfo(HLERequestContext& ctx);
+    void DeleteApplicationArea(HLERequestContext& ctx);
+    void ExistsApplicationArea(HLERequestContext& ctx);
+    void GetAll(HLERequestContext& ctx);
+    void SetAll(HLERequestContext& ctx);
+    void FlushDebug(HLERequestContext& ctx);
+    void BreakTag(HLERequestContext& ctx);
+    void ReadBackupData(HLERequestContext& ctx);
+    void WriteBackupData(HLERequestContext& ctx);
+    void WriteNtf(HLERequestContext& ctx);
+
+private:
+    enum class State : u32 {
+        NonInitialized,
+        Initialized,
+    };
 
     std::optional<std::shared_ptr<NfpDevice>> GetNfpDevice(u64 handle);
 
diff --git a/src/core/hle/service/nfp/nfp_types.h b/src/core/hle/service/nfp/nfp_types.h
index 70c878552..1ef047cee 100644
--- a/src/core/hle/service/nfp/nfp_types.h
+++ b/src/core/hle/service/nfp/nfp_types.h
@@ -109,6 +109,12 @@ enum class AppAreaVersion : u8 {
     NotSet = 0xFF,
 };
 
+enum class BreakType : u32 {
+    Normal,
+    Unknown1,
+    Unknown2,
+};
+
 enum class CabinetMode : u8 {
     StartNicknameAndOwnerSettings,
     StartGameDataEraser,
@@ -181,6 +187,12 @@ struct AmiiboDate {
         };
     }
 
+    void SetWriteDate(const WriteDate& write_date) {
+        SetYear(write_date.year);
+        SetMonth(write_date.month);
+        SetDay(write_date.day);
+    }
+
     void SetYear(u16 year) {
         const u16 year_converted = static_cast<u16>((year - 2000) << 9);
         raw_date = Common::swap16((GetValue() & ~0xFE00) | year_converted);
@@ -354,6 +366,15 @@ struct RegisterInfo {
 };
 static_assert(sizeof(RegisterInfo) == 0x100, "RegisterInfo is an invalid size");
 
+struct RegisterInfoPrivate {
+    Service::Mii::MiiStoreData mii_store_data;
+    WriteDate creation_date;
+    AmiiboName amiibo_name;
+    u8 font_region;
+    INSERT_PADDING_BYTES(0x8E);
+};
+static_assert(sizeof(RegisterInfoPrivate) == 0x100, "RegisterInfoPrivate is an invalid size");
+
 struct AdminInfo {
     u64 application_id;
     u32 application_area_id;
@@ -366,6 +387,39 @@ struct AdminInfo {
 };
 static_assert(sizeof(AdminInfo) == 0x40, "AdminInfo is an invalid size");
 
+#pragma pack(1)
+// This is nn::nfp::NfpData
+struct NfpData {
+    u8 magic;
+    INSERT_PADDING_BYTES(0x1);
+    u8 write_counter;
+    INSERT_PADDING_BYTES(0x1);
+    u32 settings_crc;
+    INSERT_PADDING_BYTES(0x38);
+    CommonInfo common_info;
+    Service::Mii::Ver3StoreData mii_char_info;
+    Service::Mii::NfpStoreDataExtension mii_store_data_extension;
+    WriteDate creation_date;
+    std::array<u16_be, amiibo_name_length> amiibo_name;
+    u16 amiibo_name_null_terminated;
+    Settings settings;
+    u8 unknown1;
+    u32 register_info_crc;
+    std::array<u32, 5> unknown2;
+    INSERT_PADDING_BYTES(0x64);
+    u64 application_id;
+    u32 access_id;
+    u16 settings_crc_counter;
+    u8 font_region;
+    PackedTagType tag_type;
+    AppAreaVersion console_type;
+    u8 application_id_byte;
+    INSERT_PADDING_BYTES(0x2E);
+    ApplicationArea application_area;
+};
+static_assert(sizeof(NfpData) == 0x298, "NfpData is an invalid size");
+#pragma pack()
+
 struct SectorKey {
     MifareCmd command;
     u8 unknown; // Usually 1