service: nfp: Use an unique interface

src/core/CMakeLists.txt

@@ -570,10 +570,10 @@ add_library(core STATIC
     hle/service/nfp/nfp.h
     hle/service/nfp/nfp_device.cpp
     hle/service/nfp/nfp_device.h
+    hle/service/nfp/nfp_interface.cpp
+    hle/service/nfp/nfp_interface.h
     hle/service/nfp/nfp_result.h
     hle/service/nfp/nfp_types.h
-    hle/service/nfp/nfp_user.cpp
-    hle/service/nfp/nfp_user.h
     hle/service/ngct/ngct.cpp
     hle/service/ngct/ngct.h
     hle/service/nifm/nifm.cpp

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, nullptr, "InitializeSystem"},
+            {1, nullptr, "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, nullptr, "Format"},
+            {101, nullptr, "GetAdminInfo"},
+            {102, nullptr, "GetRegisterInfoPrivate"},
+            {103, nullptr, "SetRegisterInfoPrivate"},
+            {104, nullptr, "DeleteRegisterInfo"},
+            {105, nullptr, "DeleteApplicationArea"},
+            {106, nullptr, "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, nullptr, "InitializeDebug"},
+            {1, nullptr, "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, nullptr, "Format"},
+            {101, nullptr, "GetAdminInfo"},
+            {102, nullptr, "GetRegisterInfoPrivate"},
+            {103, nullptr, "SetRegisterInfoPrivate"},
+            {104, nullptr, "DeleteRegisterInfo"},
+            {105, nullptr, "DeleteApplicationArea"},
+            {106, nullptr, "ExistsApplicationArea"},
+            {200, nullptr, "GetAll"},
+            {201, nullptr, "SetAll"},
+            {202, nullptr, "FlushDebug"},
+            {203, nullptr, "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));
 }
 

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 +23,11 @@ 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;
@@ -69,7 +40,7 @@ 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 +53,7 @@ void IUser::Finalize(HLERequestContext& ctx) {
     rb.Push(ResultSuccess);
 }
 
-void IUser::ListDevices(HLERequestContext& ctx) {
+void Interface::ListDevices(HLERequestContext& ctx) {
     LOG_DEBUG(Service_NFP, "called");
 
     if (state == State::NonInitialized) {
@@ -128,7 +99,7 @@ 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 +124,7 @@ 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 +148,7 @@ 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 +175,7 @@ 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 +199,7 @@ 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 +224,7 @@ 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 +258,7 @@ 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 +289,7 @@ 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 +313,7 @@ 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 +337,7 @@ 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 +370,7 @@ 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 +396,7 @@ 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 +422,7 @@ 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 +448,7 @@ 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 +474,7 @@ 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 +498,7 @@ 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 +522,7 @@ 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 +530,7 @@ 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 +548,7 @@ 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 +572,7 @@ 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 +590,7 @@ 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 +604,7 @@ 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 +631,7 @@ void IUser::RecreateApplicationArea(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
-std::optional<std::shared_ptr<NfpDevice>> IUser::GetNfpDevice(u64 handle) {
+std::optional<std::shared_ptr<NfpDevice>> Interface::GetNfpDevice(u64 handle) {
     for (auto& device : devices) {
         if (device->GetHandle() == handle) {
             return device;

src/core/hle/service/nfp/nfp_interface.h

@@ -13,16 +13,10 @@
 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 Finalize(HLERequestContext& ctx);
@@ -50,6 +44,12 @@ private:
     void AttachAvailabilityChangeEvent(HLERequestContext& ctx);
     void RecreateApplicationArea(HLERequestContext& ctx);
 
+private:
+    enum class State : u32 {
+        NonInitialized,
+        Initialized,
+    };
+
     std::optional<std::shared_ptr<NfpDevice>> GetNfpDevice(u64 handle);
 
     KernelHelpers::ServiceContext service_context;