service: nfc: Merge device interfaces and create the device manager

src/core/CMakeLists.txt

@@ -555,21 +555,22 @@ add_library(core STATIC
     hle/service/mnpp/mnpp_app.h
     hle/service/ncm/ncm.cpp
     hle/service/ncm/ncm.h
-    hle/service/nfc/mifare_user.cpp
-    hle/service/nfc/mifare_user.h
+    hle/service/nfc/common/amiibo_crypto.cpp
+    hle/service/nfc/common/amiibo_crypto.h
+    hle/service/nfc/common/device.cpp
+    hle/service/nfc/common/device.h
+    hle/service/nfc/common/device_manager.cpp
+    hle/service/nfc/common/device_manager.h
+    hle/service/nfc/mifare_result.h
+    hle/service/nfc/mifare_types.h
     hle/service/nfc/nfc.cpp
     hle/service/nfc/nfc.h
-    hle/service/nfc/nfc_device.cpp
-    hle/service/nfc/nfc_device.h
+    hle/service/nfc/nfc_interface.cpp
+    hle/service/nfc/nfc_interface.h
     hle/service/nfc/nfc_result.h
-    hle/service/nfc/nfc_user.cpp
-    hle/service/nfc/nfc_user.h
-    hle/service/nfp/amiibo_crypto.cpp
-    hle/service/nfp/amiibo_crypto.h
+    hle/service/nfc/nfc_types.h
     hle/service/nfp/nfp.cpp
     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

src/core/frontend/applets/cabinet.cpp

@@ -14,7 +14,7 @@ void DefaultCabinetApplet::Close() const {}
 
 void DefaultCabinetApplet::ShowCabinetApplet(
     const CabinetCallback& callback, const CabinetParameters& parameters,
-    std::shared_ptr<Service::NFP::NfpDevice> nfp_device) const {
+    std::shared_ptr<Service::NFC::NfcDevice> nfp_device) const {
     LOG_WARNING(Service_AM, "(STUBBED) called");
     callback(false, {});
 }

src/core/frontend/applets/cabinet.h

@@ -7,9 +7,9 @@
 #include "core/frontend/applets/applet.h"
 #include "core/hle/service/nfp/nfp_types.h"
 
-namespace Service::NFP {
-class NfpDevice;
-} // namespace Service::NFP
+namespace Service::NFC {
+class NfcDevice;
+} // namespace Service::NFC
 
 namespace Core::Frontend {
 
@@ -26,14 +26,14 @@ public:
     virtual ~CabinetApplet();
     virtual void ShowCabinetApplet(const CabinetCallback& callback,
                                    const CabinetParameters& parameters,
-                                   std::shared_ptr<Service::NFP::NfpDevice> nfp_device) const = 0;
+                                   std::shared_ptr<Service::NFC::NfcDevice> nfp_device) const = 0;
 };
 
 class DefaultCabinetApplet final : public CabinetApplet {
 public:
     void Close() const override;
     void ShowCabinetApplet(const CabinetCallback& callback, const CabinetParameters& parameters,
-                           std::shared_ptr<Service::NFP::NfpDevice> nfp_device) const override;
+                           std::shared_ptr<Service::NFC::NfcDevice> nfp_device) const override;
 };
 
 } // namespace Core::Frontend

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

@@ -11,7 +11,7 @@
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applets/applet_cabinet.h"
 #include "core/hle/service/mii/mii_manager.h"
-#include "core/hle/service/nfp/nfp_device.h"
+#include "core/hle/service/nfc/common/device.h"
 
 namespace Service::AM::Applets {
 
@@ -72,10 +72,10 @@ void Cabinet::Execute() {
 
     // TODO: listen on all controllers
     if (nfp_device == nullptr) {
-        nfp_device = std::make_shared<Service::NFP::NfpDevice>(
+        nfp_device = std::make_shared<Service::NFC::NfcDevice>(
             system.HIDCore().GetFirstNpadId(), system, service_context, availability_change_event);
         nfp_device->Initialize();
-        nfp_device->StartDetection(Service::NFP::TagProtocol::All);
+        nfp_device->StartDetection(Service::NFC::NfcProtocol::All);
     }
 
     const Core::Frontend::CabinetParameters parameters{
@@ -106,20 +106,22 @@ void Cabinet::DisplayCompleted(bool apply_changes, std::string_view amiibo_name)
         Cancel();
     }
 
-    if (nfp_device->GetCurrentState() != Service::NFP::DeviceState::TagFound &&
-        nfp_device->GetCurrentState() != Service::NFP::DeviceState::TagMounted) {
+    if (nfp_device->GetCurrentState() != Service::NFC::DeviceState::TagFound &&
+        nfp_device->GetCurrentState() != Service::NFC::DeviceState::TagMounted) {
         Cancel();
     }
 
-    if (nfp_device->GetCurrentState() == Service::NFP::DeviceState::TagFound) {
-        nfp_device->Mount(Service::NFP::MountTarget::All);
+    if (nfp_device->GetCurrentState() == Service::NFC::DeviceState::TagFound) {
+        nfp_device->Mount(Service::NFP::ModelType::Amiibo, Service::NFP::MountTarget::All);
     }
 
     switch (applet_input_common.applet_mode) {
     case Service::NFP::CabinetMode::StartNicknameAndOwnerSettings: {
-        Service::NFP::AmiiboName name{};
-        std::memcpy(name.data(), amiibo_name.data(), std::min(amiibo_name.size(), name.size() - 1));
-        nfp_device->SetRegisterInfoPrivate(name);
+        Service::NFP::RegisterInfoPrivate register_info{};
+        std::memcpy(register_info.amiibo_name.data(), amiibo_name.data(),
+                    std::min(amiibo_name.size(), register_info.amiibo_name.size() - 1));
+
+        nfp_device->SetRegisterInfoPrivate(register_info);
         break;
     }
     case Service::NFP::CabinetMode::StartGameDataEraser:
@@ -139,7 +141,7 @@ void Cabinet::DisplayCompleted(bool apply_changes, std::string_view amiibo_name)
     applet_output.device_handle = applet_input_common.device_handle;
     applet_output.result = CabinetResult::Cancel;
     const auto reg_result = nfp_device->GetRegisterInfo(applet_output.register_info);
-    const auto tag_result = nfp_device->GetTagInfo(applet_output.tag_info);
+    const auto tag_result = nfp_device->GetTagInfo(applet_output.tag_info, false);
     nfp_device->Finalize();
 
     if (reg_result.IsSuccess()) {

src/core/hle/service/am/applets/applet_cabinet.h

@@ -19,8 +19,8 @@ namespace Core {
 class System;
 } // namespace Core
 
-namespace Service::NFP {
-class NfpDevice;
+namespace Service::NFC {
+class NfcDevice;
 }
 
 namespace Service::AM::Applets {
@@ -96,7 +96,7 @@ private:
     Core::System& system;
 
     bool is_complete{false};
-    std::shared_ptr<Service::NFP::NfpDevice> nfp_device;
+    std::shared_ptr<Service::NFC::NfcDevice> nfp_device;
     Kernel::KEvent* availability_change_event;
     KernelHelpers::ServiceContext service_context;
     StartParamForAmiiboSettings applet_input_common{};

src/core/hle/service/nfp/amiibo_crypto.cpp → src/core/hle/service/nfc/common/amiibo_crypto.cpp

@@ -12,7 +12,7 @@
 #include "common/fs/fs.h"
 #include "common/fs/path_util.h"
 #include "common/logging/log.h"
-#include "core/hle/service/nfp/amiibo_crypto.h"
+#include "core/hle/service/nfc/common/amiibo_crypto.h"
 
 namespace Service::NFP::AmiiboCrypto {
 
@@ -55,7 +55,7 @@ bool IsAmiiboValid(const EncryptedNTAG215File& ntag_file) {
     if (amiibo_data.constant_value != 0xA5) {
         return false;
     }
-    if (amiibo_data.model_info.tag_type != PackedTagType::Type2) {
+    if (amiibo_data.model_info.tag_type != NFC::PackedTagType::Type2) {
         return false;
     }
     if ((ntag_file.dynamic_lock & 0xFFFFFF) != 0x0F0001U) {

src/core/hle/service/nfp/amiibo_crypto.h → src/core/hle/service/nfc/common/amiibo_crypto.h

@@ -24,9 +24,9 @@ using DrgbOutput = std::array<u8, 0x20>;
 struct HashSeed {
     u16_be magic;
     std::array<u8, 0xE> padding;
-    UniqueSerialNumber uid_1;
+    NFC::UniqueSerialNumber uid_1;
     u8 nintendo_id_1;
-    UniqueSerialNumber uid_2;
+    NFC::UniqueSerialNumber uid_2;
     u8 nintendo_id_2;
     std::array<u8, 0x20> keygen_salt;
 };

src/core/hle/service/nfc/common/device.h

@@ -0,0 +1,138 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <span>
+
+#include "common/common_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/nfc/mifare_types.h"
+#include "core/hle/service/nfc/nfc_types.h"
+#include "core/hle/service/nfp/nfp_types.h"
+#include "core/hle/service/service.h"
+#include "core/hle/service/time/clock_types.h"
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Core {
+class System;
+} // namespace Core
+
+namespace Core::HID {
+class EmulatedController;
+enum class ControllerTriggerType;
+enum class NpadIdType : u32;
+} // namespace Core::HID
+
+namespace Service::NFC {
+class NfcDevice {
+public:
+    NfcDevice(Core::HID::NpadIdType npad_id_, Core::System& system_,
+              KernelHelpers::ServiceContext& service_context_,
+              Kernel::KEvent* availability_change_event_);
+    ~NfcDevice();
+
+    void Initialize();
+    void Finalize();
+
+    Result StartDetection(NfcProtocol allowed_protocol);
+    Result StopDetection();
+
+    Result GetTagInfo(TagInfo& tag_info, bool is_mifare) const;
+
+    Result ReadMifare(std::span<const MifareReadBlockParameter> parameters,
+                      std::span<MifareReadBlockData> read_block_data) const;
+    Result ReadMifare(const MifareReadBlockParameter& parameter,
+                      MifareReadBlockData& read_block_data) const;
+
+    Result WriteMifare(std::span<const MifareWriteBlockParameter> parameters);
+    Result WriteMifare(const MifareWriteBlockParameter& parameter);
+
+    Result SendCommandByPassThrough(const Time::Clock::TimeSpanType& timeout,
+                                    std::span<const u8> command_data, std::span<u8> out_data);
+
+    Result Mount(NFP::ModelType model_type, NFP::MountTarget mount_target);
+    Result Unmount();
+
+    Result Flush();
+    Result FlushDebug();
+    Result FlushWithBreak(NFP::BreakType break_type);
+    Result Restore();
+
+    Result GetCommonInfo(NFP::CommonInfo& common_info) const;
+    Result GetModelInfo(NFP::ModelInfo& model_info) const;
+    Result GetRegisterInfo(NFP::RegisterInfo& register_info) const;
+    Result GetRegisterInfoPrivate(NFP::RegisterInfoPrivate& register_info) const;
+    Result GetAdminInfo(NFP::AdminInfo& admin_info) const;
+
+    Result DeleteRegisterInfo();
+    Result SetRegisterInfoPrivate(const NFP::RegisterInfoPrivate& register_info);
+    Result RestoreAmiibo();
+    Result Format();
+
+    Result OpenApplicationArea(u32 access_id);
+    Result GetApplicationAreaId(u32& application_area_id) const;
+    Result GetApplicationArea(std::span<u8> data) const;
+    Result SetApplicationArea(std::span<const u8> data);
+    Result CreateApplicationArea(u32 access_id, std::span<const u8> data);
+    Result RecreateApplicationArea(u32 access_id, std::span<const u8> data);
+    Result DeleteApplicationArea();
+    Result ExistsApplicationArea(bool& has_application_area) const;
+
+    Result GetAll(NFP::NfpData& data) const;
+    Result SetAll(const NFP::NfpData& data);
+    Result BreakTag(NFP::BreakType break_type);
+    Result ReadBackupData(std::span<u8> data) const;
+    Result WriteBackupData(std::span<const u8> data);
+    Result WriteNtf(std::span<const u8> data);
+
+    u64 GetHandle() const;
+    DeviceState GetCurrentState() const;
+    Result GetNpadId(Core::HID::NpadIdType& out_npad_id) const;
+
+    Kernel::KReadableEvent& GetActivateEvent() const;
+    Kernel::KReadableEvent& GetDeactivateEvent() const;
+
+private:
+    void NpadUpdate(Core::HID::ControllerTriggerType type);
+    bool LoadNfcTag(std::span<const u8> data);
+    void CloseNfcTag();
+
+    NFP::AmiiboName GetAmiiboName(const NFP::AmiiboSettings& settings) const;
+    void SetAmiiboName(NFP::AmiiboSettings& settings, const NFP::AmiiboName& amiibo_name);
+    NFP::AmiiboDate GetAmiiboDate(s64 posix_time) const;
+    u64 RemoveVersionByte(u64 application_id) const;
+    void UpdateSettingsCrc();
+    void UpdateRegisterInfoCrc();
+
+    bool is_controller_set{};
+    int callback_key;
+    const Core::HID::NpadIdType npad_id;
+    Core::System& system;
+    Core::HID::EmulatedController* npad_device = nullptr;
+    KernelHelpers::ServiceContext& service_context;
+    Kernel::KEvent* activate_event = nullptr;
+    Kernel::KEvent* deactivate_event = nullptr;
+    Kernel::KEvent* availability_change_event = nullptr;
+
+    bool is_initalized{};
+    NfcProtocol allowed_protocols{};
+    DeviceState device_state{DeviceState::Unavailable};
+
+    // NFP data
+    bool is_data_moddified{};
+    bool is_app_area_open{};
+    bool is_plain_amiibo{};
+    s64 current_posix_time{};
+    NFP::MountTarget mount_target{NFP::MountTarget::None};
+
+    NFP::NTAG215File tag_data{};
+    std::vector<u8> mifare_data{};
+    NFP::EncryptedNTAG215File encrypted_tag_data{};
+};
+
+} // namespace Service::NFC

src/core/hle/service/nfc/common/device_manager.cpp

@@ -0,0 +1,695 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "common/logging/log.h"
+#include "core/core.h"
+#include "core/hid/hid_types.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/nfc/common/device.h"
+#include "core/hle/service/nfc/common/device_manager.h"
+#include "core/hle/service/nfc/nfc_result.h"
+#include "core/hle/service/time/clock_types.h"
+
+namespace Service::NFC {
+
+DeviceManager::DeviceManager(Core::System& system_, KernelHelpers::ServiceContext& service_context_)
+    : system{system_}, service_context{service_context_} {
+
+    availability_change_event =
+        service_context.CreateEvent("Nfc:DeviceManager:AvailabilityChangeEvent");
+
+    for (u32 device_index = 0; device_index < devices.size(); device_index++) {
+        devices[device_index] =
+            std::make_shared<NfcDevice>(Core::HID::IndexToNpadIdType(device_index), system,
+                                        service_context, availability_change_event);
+    }
+
+    is_initialized = false;
+}
+
+DeviceManager ::~DeviceManager() {
+    service_context.CloseEvent(availability_change_event);
+}
+
+Result DeviceManager::Initialize() {
+    for (auto& device : devices) {
+        device->Initialize();
+    }
+    is_initialized = true;
+    return ResultSuccess;
+}
+
+Result DeviceManager::Finalize() {
+    for (auto& device : devices) {
+        device->Finalize();
+    }
+    is_initialized = false;
+    return ResultSuccess;
+}
+
+Result DeviceManager::ListDevices(std::vector<u64>& nfp_devices,
+                                  std::size_t max_allowed_devices) const {
+    for (auto& device : devices) {
+        if (nfp_devices.size() >= max_allowed_devices) {
+            continue;
+        }
+        if (device->GetCurrentState() != DeviceState::Unavailable) {
+            nfp_devices.push_back(device->GetHandle());
+        }
+    }
+
+    if (nfp_devices.empty()) {
+        return ResultDeviceNotFound;
+    }
+
+    return ResultSuccess;
+}
+
+DeviceState DeviceManager::GetDeviceState(u64 device_handle) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    const auto result = GetDeviceFromHandle(device_handle, device, false);
+
+    if (result.IsSuccess()) {
+        return device->GetCurrentState();
+    }
+
+    return DeviceState::Unavailable;
+}
+
+Result DeviceManager::GetNpadId(u64 device_handle, Core::HID::NpadIdType& npad_id) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetNpadId(npad_id);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Kernel::KReadableEvent& DeviceManager::AttachAvailabilityChangeEvent() const {
+    return availability_change_event->GetReadableEvent();
+}
+
+Result DeviceManager::StartDetection(u64 device_handle, NfcProtocol tag_protocol) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->StartDetection(tag_protocol);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::StopDetection(u64 device_handle) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->StopDetection();
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetTagInfo(u64 device_handle, TagInfo& tag_info, bool is_mifare) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetTagInfo(tag_info, is_mifare);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Kernel::KReadableEvent& DeviceManager::AttachActivateEvent(u64 device_handle) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    GetDeviceFromHandle(device_handle, device, false);
+
+    // TODO: Return proper error code on failure
+    return device->GetActivateEvent();
+}
+
+Kernel::KReadableEvent& DeviceManager::AttachDeactivateEvent(u64 device_handle) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    GetDeviceFromHandle(device_handle, device, false);
+
+    // TODO: Return proper error code on failure
+    return device->GetDeactivateEvent();
+}
+
+Result DeviceManager::ReadMifare(u64 device_handle,
+                                 std::span<const MifareReadBlockParameter> read_parameters,
+                                 std::span<MifareReadBlockData> read_data) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->ReadMifare(read_parameters, read_data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::WriteMifare(u64 device_handle,
+                                  std::span<const MifareWriteBlockParameter> write_parameters) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->WriteMifare(write_parameters);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::SendCommandByPassThrough(u64 device_handle,
+                                               const Time::Clock::TimeSpanType& timeout,
+                                               std::span<const u8> command_data,
+                                               std::span<u8> out_data) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->SendCommandByPassThrough(timeout, command_data, out_data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::Mount(u64 device_handle, NFP::ModelType model_type,
+                            NFP::MountTarget mount_target) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->Mount(model_type, mount_target);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::Unmount(u64 device_handle) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->Unmount();
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::OpenApplicationArea(u64 device_handle, u32 access_id) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->OpenApplicationArea(access_id);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetApplicationArea(u64 device_handle, std::span<u8> data) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetApplicationArea(data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::SetApplicationArea(u64 device_handle, std::span<const u8> data) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->SetApplicationArea(data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::Flush(u64 device_handle) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->Flush();
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::Restore(u64 device_handle) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->Restore();
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::CreateApplicationArea(u64 device_handle, u32 access_id,
+                                            std::span<const u8> data) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->CreateApplicationArea(access_id, data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetRegisterInfo(u64 device_handle, NFP::RegisterInfo& register_info) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetRegisterInfo(register_info);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetCommonInfo(u64 device_handle, NFP::CommonInfo& common_info) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetCommonInfo(common_info);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetModelInfo(u64 device_handle, NFP::ModelInfo& model_info) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetModelInfo(model_info);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+u32 DeviceManager::GetApplicationAreaSize() const {
+    return sizeof(NFP::ApplicationArea);
+}
+
+Result DeviceManager::RecreateApplicationArea(u64 device_handle, u32 access_id,
+                                              std::span<const u8> data) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->RecreateApplicationArea(access_id, data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::Format(u64 device_handle) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->Format();
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetAdminInfo(u64 device_handle, NFP::AdminInfo& admin_info) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetAdminInfo(admin_info);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetRegisterInfoPrivate(u64 device_handle,
+                                             NFP::RegisterInfoPrivate& register_info) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetRegisterInfoPrivate(register_info);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::SetRegisterInfoPrivate(u64 device_handle,
+                                             const NFP::RegisterInfoPrivate& register_info) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->SetRegisterInfoPrivate(register_info);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::DeleteRegisterInfo(u64 device_handle) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->DeleteRegisterInfo();
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::DeleteApplicationArea(u64 device_handle) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->DeleteApplicationArea();
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::ExistsApplicationArea(u64 device_handle, bool& has_application_area) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->ExistsApplicationArea(has_application_area);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetAll(u64 device_handle, NFP::NfpData& nfp_data) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->GetAll(nfp_data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::SetAll(u64 device_handle, const NFP::NfpData& nfp_data) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->SetAll(nfp_data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::FlushDebug(u64 device_handle) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->FlushDebug();
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::BreakTag(u64 device_handle, NFP::BreakType break_type) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->BreakTag(break_type);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::ReadBackupData(u64 device_handle, std::span<u8> data) const {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->ReadBackupData(data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::WriteBackupData(u64 device_handle, std::span<const u8> data) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->WriteBackupData(data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::WriteNtf(u64 device_handle, NFP::WriteType, std::span<const u8> data) {
+    std::scoped_lock lock{mutex};
+
+    std::shared_ptr<NfcDevice> device = nullptr;
+    auto result = GetDeviceHandle(device_handle, device);
+
+    if (result.IsSuccess()) {
+        result = device->WriteNtf(data);
+        result = VerifyDeviceResult(device, result);
+    }
+
+    return result;
+}
+
+Result DeviceManager::GetDeviceFromHandle(u64 handle, std::shared_ptr<NfcDevice>& nfc_device,
+                                          bool check_state) const {
+    if (check_state) {
+        const Result is_parameter_set = IsNfcParameterSet();
+        if (is_parameter_set.IsError()) {
+            return is_parameter_set;
+        }
+        const Result is_enabled = IsNfcEnabled();
+        if (is_enabled.IsError()) {
+            return is_enabled;
+        }
+        const Result is_nfc_initialized = IsNfcInitialized();
+        if (is_nfc_initialized.IsError()) {
+            return is_nfc_initialized;
+        }
+    }
+
+    for (auto& device : devices) {
+        if (device->GetHandle() == handle) {
+            nfc_device = device;
+            return ResultSuccess;
+        }
+    }
+
+    return ResultDeviceNotFound;
+}
+
+std::optional<std::shared_ptr<NfcDevice>> DeviceManager::GetNfcDevice(u64 handle) {
+    for (auto& device : devices) {
+        if (device->GetHandle() == handle) {
+            return device;
+        }
+    }
+    return std::nullopt;
+}
+
+const std::optional<std::shared_ptr<NfcDevice>> DeviceManager::GetNfcDevice(u64 handle) const {
+    for (auto& device : devices) {
+        if (device->GetHandle() == handle) {
+            return device;
+        }
+    }
+    return std::nullopt;
+}
+
+Result DeviceManager::GetDeviceHandle(u64 handle, std::shared_ptr<NfcDevice>& device) const {
+    const auto result = GetDeviceFromHandle(handle, device, true);
+    if (result.IsError()) {
+        return result;
+    }
+    return CheckDeviceState(device);
+}
+
+Result DeviceManager::VerifyDeviceResult(std::shared_ptr<NfcDevice> device,
+                                         Result operation_result) const {
+    if (operation_result.IsSuccess()) {
+        return operation_result;
+    }
+
+    const Result is_parameter_set = IsNfcParameterSet();
+    if (is_parameter_set.IsError()) {
+        return is_parameter_set;
+    }
+    const Result is_enabled = IsNfcEnabled();
+    if (is_enabled.IsError()) {
+        return is_enabled;
+    }
+    const Result is_nfc_initialized = IsNfcInitialized();
+    if (is_nfc_initialized.IsError()) {
+        return is_nfc_initialized;
+    }
+    const Result device_state = CheckDeviceState(device);
+    if (device_state.IsError()) {
+        return device_state;
+    }
+
+    return operation_result;
+}
+
+Result DeviceManager::CheckDeviceState(std::shared_ptr<NfcDevice> device) const {
+    if (device == nullptr) {
+        return ResultInvalidArgument;
+    }
+
+    return ResultSuccess;
+}
+
+Result DeviceManager::IsNfcEnabled() const {
+    // TODO: This calls nn::settings::detail::GetNfcEnableFlag
+    const bool is_enabled = true;
+    if (!is_enabled) {
+        return ResultNfcDisabled;
+    }
+    return ResultSuccess;
+}
+
+Result DeviceManager::IsNfcParameterSet() const {
+    // TODO: This calls checks against a bool on offset 0x450
+    const bool is_set = true;
+    if (!is_set) {
+        return ResultUnknown76;
+    }
+    return ResultSuccess;
+}
+
+Result DeviceManager::IsNfcInitialized() const {
+    if (!is_initialized) {
+        return ResultNfcNotInitialized;
+    }
+    return ResultSuccess;
+}
+
+} // namespace Service::NFC

src/core/hle/service/nfc/common/device_manager.h

@@ -0,0 +1,100 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+#include <memory>
+#include <optional>
+#include <span>
+
+#include "core/hid/hid_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/nfc/mifare_types.h"
+#include "core/hle/service/nfc/nfc_types.h"
+#include "core/hle/service/nfp/nfp_types.h"
+#include "core/hle/service/service.h"
+#include "core/hle/service/time/clock_types.h"
+
+namespace Service::NFC {
+class NfcDevice;
+
+class DeviceManager {
+public:
+    explicit DeviceManager(Core::System& system_, KernelHelpers::ServiceContext& service_context_);
+    ~DeviceManager();
+
+    // Nfc device manager
+    Result Initialize();
+    Result Finalize();
+    Result ListDevices(std::vector<u64>& nfp_devices, std::size_t max_allowed_devices) const;
+    DeviceState GetDeviceState(u64 device_handle) const;
+    Result GetNpadId(u64 device_handle, Core::HID::NpadIdType& npad_id) const;
+    Kernel::KReadableEvent& AttachAvailabilityChangeEvent() const;
+    Result StartDetection(u64 device_handle, NfcProtocol tag_protocol);
+    Result StopDetection(u64 device_handle);
+    Result GetTagInfo(u64 device_handle, NFP::TagInfo& tag_info, bool is_mifare) const;
+    Kernel::KReadableEvent& AttachActivateEvent(u64 device_handle) const;
+    Kernel::KReadableEvent& AttachDeactivateEvent(u64 device_handle) const;
+    Result ReadMifare(u64 device_handle,
+                      const std::span<const MifareReadBlockParameter> read_parameters,
+                      std::span<MifareReadBlockData> read_data);
+    Result WriteMifare(u64 device_handle,
+                       std::span<const MifareWriteBlockParameter> write_parameters);
+    Result SendCommandByPassThrough(u64 device_handle, const Time::Clock::TimeSpanType& timeout,
+                                    std::span<const u8> command_data, std::span<u8> out_data);
+
+    // Nfp device manager
+    Result Mount(u64 device_handle, NFP::ModelType model_type, NFP::MountTarget mount_target);
+    Result Unmount(u64 device_handle);
+    Result OpenApplicationArea(u64 device_handle, u32 access_id);
+    Result GetApplicationArea(u64 device_handle, std::span<u8> data) const;
+    Result SetApplicationArea(u64 device_handle, std::span<const u8> data);
+    Result Flush(u64 device_handle);
+    Result Restore(u64 device_handle);
+    Result CreateApplicationArea(u64 device_handle, u32 access_id, std::span<const u8> data);
+    Result GetRegisterInfo(u64 device_handle, NFP::RegisterInfo& register_info) const;
+    Result GetCommonInfo(u64 device_handle, NFP::CommonInfo& common_info) const;
+    Result GetModelInfo(u64 device_handle, NFP::ModelInfo& model_info) const;
+    u32 GetApplicationAreaSize() const;
+    Result RecreateApplicationArea(u64 device_handle, u32 access_id, std::span<const u8> data);
+    Result Format(u64 device_handle);
+    Result GetAdminInfo(u64 device_handle, NFP::AdminInfo& admin_info) const;
+    Result GetRegisterInfoPrivate(u64 device_handle, NFP::RegisterInfoPrivate& register_info) const;
+    Result SetRegisterInfoPrivate(u64 device_handle, const NFP::RegisterInfoPrivate& register_info);
+    Result DeleteRegisterInfo(u64 device_handle);
+    Result DeleteApplicationArea(u64 device_handle);
+    Result ExistsApplicationArea(u64 device_handle, bool& has_application_area) const;
+    Result GetAll(u64 device_handle, NFP::NfpData& nfp_data) const;
+    Result SetAll(u64 device_handle, const NFP::NfpData& nfp_data);
+    Result FlushDebug(u64 device_handle);
+    Result BreakTag(u64 device_handle, NFP::BreakType break_type);
+    Result ReadBackupData(u64 device_handle, std::span<u8> data) const;
+    Result WriteBackupData(u64 device_handle, std::span<const u8> data);
+    Result WriteNtf(u64 device_handle, NFP::WriteType, std::span<const u8> data);
+
+private:
+    Result IsNfcEnabled() const;
+    Result IsNfcParameterSet() const;
+    Result IsNfcInitialized() const;
+
+    Result GetDeviceFromHandle(u64 handle, std::shared_ptr<NfcDevice>& device,
+                               bool check_state) const;
+
+    Result GetDeviceHandle(u64 handle, std::shared_ptr<NfcDevice>& device) const;
+    Result VerifyDeviceResult(std::shared_ptr<NfcDevice> device, Result operation_result) const;
+    Result CheckDeviceState(std::shared_ptr<NfcDevice> device) const;
+
+    std::optional<std::shared_ptr<NfcDevice>> GetNfcDevice(u64 handle);
+    const std::optional<std::shared_ptr<NfcDevice>> GetNfcDevice(u64 handle) const;
+
+    bool is_initialized = false;
+    mutable std::mutex mutex;
+    std::array<std::shared_ptr<NfcDevice>, 10> devices{};
+
+    Core::System& system;
+    KernelHelpers::ServiceContext service_context;
+    Kernel::KEvent* availability_change_event;
+};
+
+} // namespace Service::NFC

src/core/hle/service/nfc/mifare_interface.cpp

@@ -1,382 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/hid/hid_types.h"
-#include "core/hle/kernel/k_event.h"
-#include "core/hle/service/ipc_helpers.h"
-#include "core/hle/service/nfc/mifare_interface.h"
-#include "core/hle/service/nfc/nfc_device.h"
-#include "core/hle/service/nfc/nfc_result.h"
-
-namespace Service::NFC {
-
-MFInterface::MFInterface(Core::System& system_, const char* name)
-    : ServiceFramework{system_, name}, service_context{system_, service_name} {
-    availability_change_event = service_context.CreateEvent("MFInterface:AvailabilityChangeEvent");
-
-    for (u32 device_index = 0; device_index < 10; device_index++) {
-        devices[device_index] =
-            std::make_shared<NfcDevice>(Core::HID::IndexToNpadIdType(device_index), system,
-                                        service_context, availability_change_event);
-    }
-}
-
-MFInterface ::~MFInterface() {
-    availability_change_event->Close();
-}
-
-void MFInterface::Initialize(HLERequestContext& ctx) {
-    LOG_INFO(Service_NFC, "called");
-
-    state = State::Initialized;
-
-    for (auto& device : devices) {
-        device->Initialize();
-    }
-
-    IPC::ResponseBuilder rb{ctx, 2, 0};
-    rb.Push(ResultSuccess);
-}
-
-void MFInterface::Finalize(HLERequestContext& ctx) {
-    LOG_INFO(Service_NFC, "called");
-
-    state = State::NonInitialized;
-
-    for (auto& device : devices) {
-        device->Finalize();
-    }
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
-}
-
-void MFInterface::ListDevices(HLERequestContext& ctx) {
-    LOG_DEBUG(Service_NFC, "called");
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    if (!ctx.CanWriteBuffer()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareInvalidArgument);
-        return;
-    }
-
-    if (ctx.GetWriteBufferSize() == 0) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareInvalidArgument);
-        return;
-    }
-
-    std::vector<u64> nfp_devices;
-    const std::size_t max_allowed_devices = ctx.GetWriteBufferNumElements<u64>();
-
-    for (const auto& device : devices) {
-        if (nfp_devices.size() >= max_allowed_devices) {
-            continue;
-        }
-        if (device->GetCurrentState() != NFP::DeviceState::Unavailable) {
-            nfp_devices.push_back(device->GetHandle());
-        }
-    }
-
-    if (nfp_devices.empty()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    ctx.WriteBuffer(nfp_devices);
-
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(ResultSuccess);
-    rb.Push(static_cast<s32>(nfp_devices.size()));
-}
-
-void MFInterface::StartDetection(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    LOG_INFO(Service_NFC, "called, device_handle={}", device_handle);
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    const auto result = device.value()->StartDetection(NFP::TagProtocol::All);
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
-
-void MFInterface::StopDetection(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    LOG_INFO(Service_NFC, "called, device_handle={}", device_handle);
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    const auto result = device.value()->StopDetection();
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
-
-void MFInterface::Read(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    const auto buffer{ctx.ReadBuffer()};
-    const auto number_of_commands{ctx.GetReadBufferNumElements<NFP::MifareReadBlockParameter>()};
-    std::vector<NFP::MifareReadBlockParameter> read_commands(number_of_commands);
-
-    memcpy(read_commands.data(), buffer.data(),
-           number_of_commands * sizeof(NFP::MifareReadBlockParameter));
-
-    LOG_INFO(Service_NFC, "(STUBBED) called, device_handle={}, read_commands_size={}",
-             device_handle, number_of_commands);
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    Result result = ResultSuccess;
-    std::vector<NFP::MifareReadBlockData> out_data(number_of_commands);
-    for (std::size_t i = 0; i < number_of_commands; i++) {
-        result = device.value()->MifareRead(read_commands[i], out_data[i]);
-        if (result.IsError()) {
-            break;
-        }
-    }
-
-    ctx.WriteBuffer(out_data);
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
-
-void MFInterface::Write(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    const auto buffer{ctx.ReadBuffer()};
-    const auto number_of_commands{ctx.GetReadBufferNumElements<NFP::MifareWriteBlockParameter>()};
-    std::vector<NFP::MifareWriteBlockParameter> write_commands(number_of_commands);
-
-    memcpy(write_commands.data(), buffer.data(),
-           number_of_commands * sizeof(NFP::MifareWriteBlockParameter));
-
-    LOG_INFO(Service_NFC, "(STUBBED) called, device_handle={}, write_commands_size={}",
-             device_handle, number_of_commands);
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    Result result = ResultSuccess;
-    std::vector<NFP::MifareReadBlockData> out_data(number_of_commands);
-    for (std::size_t i = 0; i < number_of_commands; i++) {
-        result = device.value()->MifareWrite(write_commands[i]);
-        if (result.IsError()) {
-            break;
-        }
-    }
-
-    if (result.IsSuccess()) {
-        result = device.value()->Flush();
-    }
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
-
-void MFInterface::GetTagInfo(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    LOG_INFO(Service_NFC, "called, device_handle={}", device_handle);
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    NFP::TagInfo tag_info{};
-    const auto result = device.value()->GetTagInfo(tag_info, true);
-    ctx.WriteBuffer(tag_info);
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(result);
-}
-
-void MFInterface::GetActivateEventHandle(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    IPC::ResponseBuilder rb{ctx, 2, 1};
-    rb.Push(ResultSuccess);
-    rb.PushCopyObjects(device.value()->GetActivateEvent());
-}
-
-void MFInterface::GetDeactivateEventHandle(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    IPC::ResponseBuilder rb{ctx, 2, 1};
-    rb.Push(ResultSuccess);
-    rb.PushCopyObjects(device.value()->GetDeactivateEvent());
-}
-
-void MFInterface::GetState(HLERequestContext& ctx) {
-    LOG_DEBUG(Service_NFC, "called");
-
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(ResultSuccess);
-    rb.PushEnum(state);
-}
-
-void MFInterface::GetDeviceState(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(ResultSuccess);
-    rb.PushEnum(device.value()->GetCurrentState());
-}
-
-void MFInterface::GetNpadId(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto device_handle{rp.Pop<u64>()};
-    LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareDeviceNotFound);
-        return;
-    }
-
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(ResultSuccess);
-    rb.PushEnum(device.value()->GetNpadId());
-}
-
-void MFInterface::GetAvailabilityChangeEventHandle(HLERequestContext& ctx) {
-    LOG_INFO(Service_NFC, "called");
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(MifareNfcDisabled);
-        return;
-    }
-
-    IPC::ResponseBuilder rb{ctx, 2, 1};
-    rb.Push(ResultSuccess);
-    rb.PushCopyObjects(availability_change_event->GetReadableEvent());
-}
-
-std::optional<std::shared_ptr<NfcDevice>> MFInterface::GetNfcDevice(u64 handle) {
-    for (auto& device : devices) {
-        if (device->GetHandle() == handle) {
-            return device;
-        }
-    }
-    return std::nullopt;
-}
-
-} // namespace Service::NFC

src/core/hle/service/nfc/mifare_interface.h

@@ -1,52 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <array>
-#include <memory>
-#include <optional>
-
-#include "core/hle/service/kernel_helpers.h"
-#include "core/hle/service/service.h"
-
-namespace Service::NFC {
-class NfcDevice;
-
-class MFInterface : public ServiceFramework<MFInterface> {
-public:
-    explicit MFInterface(Core::System& system_, const char* name);
-    ~MFInterface();
-
-    void Initialize(HLERequestContext& ctx);
-    void Finalize(HLERequestContext& ctx);
-    void ListDevices(HLERequestContext& ctx);
-    void StartDetection(HLERequestContext& ctx);
-    void StopDetection(HLERequestContext& ctx);
-    void Read(HLERequestContext& ctx);
-    void Write(HLERequestContext& ctx);
-    void GetTagInfo(HLERequestContext& ctx);
-    void GetActivateEventHandle(HLERequestContext& ctx);
-    void GetDeactivateEventHandle(HLERequestContext& ctx);
-    void GetState(HLERequestContext& ctx);
-    void GetDeviceState(HLERequestContext& ctx);
-    void GetNpadId(HLERequestContext& ctx);
-    void GetAvailabilityChangeEventHandle(HLERequestContext& ctx);
-
-private:
-    enum class State : u32 {
-        NonInitialized,
-        Initialized,
-    };
-
-    std::optional<std::shared_ptr<NfcDevice>> GetNfcDevice(u64 handle);
-
-    KernelHelpers::ServiceContext service_context;
-
-    std::array<std::shared_ptr<NfcDevice>, 10> devices{};
-
-    State state{State::NonInitialized};
-    Kernel::KEvent* availability_change_event;
-};
-
-} // namespace Service::NFC

src/core/hle/service/nfc/mifare_result.h

@@ -0,0 +1,17 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+
+namespace Service::NFC::Mifare {
+
+constexpr Result ResultDeviceNotFound(ErrorModule::NFCMifare, 64);
+constexpr Result ResultInvalidArgument(ErrorModule::NFCMifare, 65);
+constexpr Result ResultWrongDeviceState(ErrorModule::NFCMifare, 73);
+constexpr Result ResultNfcDisabled(ErrorModule::NFCMifare, 80);
+constexpr Result ResultTagRemoved(ErrorModule::NFCMifare, 97);
+constexpr Result ResultReadError(ErrorModule::NFCMifare, 288);
+
+} // namespace Service::NFC::Mifare

src/core/hle/service/nfc/mifare_types.h

@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace Service::NFC {
+
+enum class MifareCmd : u8 {
+    AuthA = 0x60,
+    AuthB = 0x61,
+    Read = 0x30,
+    Write = 0xA0,
+    Transfer = 0xB0,
+    Decrement = 0xC0,
+    Increment = 0xC1,
+    Store = 0xC2
+};
+
+using DataBlock = std::array<u8, 0x10>;
+using KeyData = std::array<u8, 0x6>;
+
+struct SectorKey {
+    MifareCmd command;
+    u8 unknown; // Usually 1
+    INSERT_PADDING_BYTES(0x6);
+    KeyData sector_key;
+    INSERT_PADDING_BYTES(0x2);
+};
+static_assert(sizeof(SectorKey) == 0x10, "SectorKey is an invalid size");
+
+// This is nn::nfc::MifareReadBlockParameter
+struct MifareReadBlockParameter {
+    u8 sector_number;
+    INSERT_PADDING_BYTES(0x7);
+    SectorKey sector_key;
+};
+static_assert(sizeof(MifareReadBlockParameter) == 0x18,
+              "MifareReadBlockParameter is an invalid size");
+
+// This is nn::nfc::MifareReadBlockData
+struct MifareReadBlockData {
+    DataBlock data;
+    u8 sector_number;
+    INSERT_PADDING_BYTES(0x7);
+};
+static_assert(sizeof(MifareReadBlockData) == 0x18, "MifareReadBlockData is an invalid size");
+
+// This is nn::nfc::MifareWriteBlockParameter
+struct MifareWriteBlockParameter {
+    DataBlock data;
+    u8 sector_number;
+    INSERT_PADDING_BYTES(0x7);
+    SectorKey sector_key;
+};
+static_assert(sizeof(MifareWriteBlockParameter) == 0x28,
+              "MifareWriteBlockParameter is an invalid size");
+
+} // namespace Service::NFC

src/core/hle/service/nfc/nfc.cpp

@@ -6,7 +6,6 @@
 #include "common/logging/log.h"
 #include "common/settings.h"
 #include "core/hle/service/ipc_helpers.h"
-#include "core/hle/service/nfc/mifare_interface.h"
 #include "core/hle/service/nfc/nfc.h"
 #include "core/hle/service/nfc/nfc_interface.h"
 #include "core/hle/service/server_manager.h"
@@ -14,31 +13,31 @@
 
 namespace Service::NFC {
 
-class IUser final : public Interface {
+class IUser final : public NfcInterface {
 public:
-    explicit IUser(Core::System& system_) : Interface(system_, "NFC::IUser") {
+    explicit IUser(Core::System& system_) : NfcInterface(system_, "NFC::IUser", BackendType::Nfc) {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, &Interface::Initialize, "InitializeOld"},
-            {1, &Interface::Finalize, "FinalizeOld"},
-            {2, &Interface::GetState, "GetStateOld"},
-            {3, &Interface::IsNfcEnabled, "IsNfcEnabledOld"},
-            {400, &Interface::Initialize, "Initialize"},
-            {401, &Interface::Finalize, "Finalize"},
-            {402, &Interface::GetState, "GetState"},
-            {403, &Interface::IsNfcEnabled, "IsNfcEnabled"},
-            {404, &Interface::ListDevices, "ListDevices"},
-            {405, &Interface::GetDeviceState, "GetDeviceState"},
-            {406, &Interface::GetNpadId, "GetNpadId"},
-            {407, &Interface::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
-            {408, &Interface::StartDetection, "StartDetection"},
-            {409, &Interface::StopDetection, "StopDetection"},
-            {410, &Interface::GetTagInfo, "GetTagInfo"},
-            {411, &Interface::AttachActivateEvent, "AttachActivateEvent"},
-            {412, &Interface::AttachDeactivateEvent, "AttachDeactivateEvent"},
-            {1000, nullptr, "ReadMifare"},
-            {1001, nullptr, "WriteMifare"},
-            {1300, &Interface::SendCommandByPassThrough, "SendCommandByPassThrough"},
+            {0, &NfcInterface::Initialize, "InitializeOld"},
+            {1, &NfcInterface::Finalize, "FinalizeOld"},
+            {2, &NfcInterface::GetState, "GetStateOld"},
+            {3, &NfcInterface::IsNfcEnabled, "IsNfcEnabledOld"},
+            {400, &NfcInterface::Initialize, "Initialize"},
+            {401, &NfcInterface::Finalize, "Finalize"},
+            {402, &NfcInterface::GetState, "GetState"},
+            {403, &NfcInterface::IsNfcEnabled, "IsNfcEnabled"},
+            {404, &NfcInterface::ListDevices, "ListDevices"},
+            {405, &NfcInterface::GetDeviceState, "GetDeviceState"},
+            {406, &NfcInterface::GetNpadId, "GetNpadId"},
+            {407, &NfcInterface::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
+            {408, &NfcInterface::StartDetection, "StartDetection"},
+            {409, &NfcInterface::StopDetection, "StopDetection"},
+            {410, &NfcInterface::GetTagInfo, "GetTagInfo"},
+            {411, &NfcInterface::AttachActivateEvent, "AttachActivateEvent"},
+            {412, &NfcInterface::AttachDeactivateEvent, "AttachDeactivateEvent"},
+            {1000, &NfcInterface::ReadMifare, "ReadMifare"},
+            {1001, &NfcInterface::WriteMifare ,"WriteMifare"},
+            {1300, &NfcInterface::SendCommandByPassThrough, "SendCommandByPassThrough"},
             {1301, nullptr, "KeepPassThroughSession"},
             {1302, nullptr, "ReleasePassThroughSession"},
         };
@@ -48,34 +47,35 @@ public:
     }
 };
 
-class ISystem final : public Interface {
+class ISystem final : public NfcInterface {
 public:
-    explicit ISystem(Core::System& system_) : Interface{system_, "NFC::ISystem"} {
+    explicit ISystem(Core::System& system_)
+        : NfcInterface{system_, "NFC::ISystem", BackendType::Nfc} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, &Interface::Initialize, "InitializeOld"},
-            {1, &Interface::Finalize, "FinalizeOld"},
-            {2, &Interface::GetState, "GetStateOld"},
-            {3, &Interface::IsNfcEnabled, "IsNfcEnabledOld"},
+            {0, &NfcInterface::Initialize, "InitializeOld"},
+            {1, &NfcInterface::Finalize, "FinalizeOld"},
+            {2, &NfcInterface::GetState, "GetStateOld"},
+            {3, &NfcInterface::IsNfcEnabled, "IsNfcEnabledOld"},
             {100, nullptr, "SetNfcEnabledOld"},
-            {400, &Interface::Initialize, "Initialize"},
-            {401, &Interface::Finalize, "Finalize"},
-            {402, &Interface::GetState, "GetState"},
-            {403, &Interface::IsNfcEnabled, "IsNfcEnabled"},
-            {404, &Interface::ListDevices, "ListDevices"},
-            {405, &Interface::GetDeviceState, "GetDeviceState"},
-            {406, &Interface::GetNpadId, "GetNpadId"},
-            {407, &Interface::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
-            {408, &Interface::StartDetection, "StartDetection"},
-            {409, &Interface::StopDetection, "StopDetection"},
-            {410, &Interface::GetTagInfo, "GetTagInfo"},
-            {411, &Interface::AttachActivateEvent, "AttachActivateEvent"},
-            {412, &Interface::AttachDeactivateEvent, "AttachDeactivateEvent"},
+            {400, &NfcInterface::Initialize, "Initialize"},
+            {401, &NfcInterface::Finalize, "Finalize"},
+            {402, &NfcInterface::GetState, "GetState"},
+            {403, &NfcInterface::IsNfcEnabled, "IsNfcEnabled"},
+            {404, &NfcInterface::ListDevices, "ListDevices"},
+            {405, &NfcInterface::GetDeviceState, "GetDeviceState"},
+            {406, &NfcInterface::GetNpadId, "GetNpadId"},
+            {407, &NfcInterface::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
+            {408, &NfcInterface::StartDetection, "StartDetection"},
+            {409, &NfcInterface::StopDetection, "StopDetection"},
+            {410, &NfcInterface::GetTagInfo, "GetTagInfo"},
+            {411, &NfcInterface::AttachActivateEvent, "AttachActivateEvent"},
+            {412, &NfcInterface::AttachDeactivateEvent, "AttachDeactivateEvent"},
             {500, nullptr, "SetNfcEnabled"},
             {510, nullptr, "OutputTestWave"},
-            {1000, nullptr, "ReadMifare"},
-            {1001, nullptr, "WriteMifare"},
-            {1300, &Interface::SendCommandByPassThrough, "SendCommandByPassThrough"},
+            {1000, &NfcInterface::ReadMifare, "ReadMifare"},
+            {1001, &NfcInterface::WriteMifare, "WriteMifare"},
+            {1300, &NfcInterface::SendCommandByPassThrough, "SendCommandByPassThrough"},
             {1301, nullptr, "KeepPassThroughSession"},
             {1302, nullptr, "ReleasePassThroughSession"},
         };
@@ -85,25 +85,29 @@ public:
     }
 };
 
+// MFInterface has an unique interface but it's identical to NfcInterface so we can keep the code
+// simpler
+using MFInterface = NfcInterface;
 class MFIUser final : public MFInterface {
 public:
-    explicit MFIUser(Core::System& system_) : MFInterface{system_, "NFC::MFInterface"} {
+    explicit MFIUser(Core::System& system_)
+        : MFInterface{system_, "NFC::MFInterface", BackendType::Mifare} {
         // clang-format off
-        static const FunctionInfo functions[] = {
+        static const FunctionInfoTyped<MFIUser> functions[] = {
             {0, &MFIUser::Initialize, "Initialize"},
             {1, &MFIUser::Finalize, "Finalize"},
             {2, &MFIUser::ListDevices, "ListDevices"},
             {3, &MFIUser::StartDetection, "StartDetection"},
             {4, &MFIUser::StopDetection, "StopDetection"},
-            {5, &MFIUser::Read, "Read"},
-            {6, &MFIUser::Write, "Write"},
+            {5, &MFIUser::ReadMifare, "Read"},
+            {6, &MFIUser::WriteMifare, "Write"},
             {7, &MFIUser::GetTagInfo, "GetTagInfo"},
-            {8, &MFIUser::GetActivateEventHandle, "GetActivateEventHandle"},
-            {9, &MFIUser::GetDeactivateEventHandle, "GetDeactivateEventHandle"},
+            {8, &MFIUser::AttachActivateEvent, "GetActivateEventHandle"},
+            {9, &MFIUser::AttachDeactivateEvent, "GetDeactivateEventHandle"},
             {10, &MFIUser::GetState, "GetState"},
             {11, &MFIUser::GetDeviceState, "GetDeviceState"},
             {12, &MFIUser::GetNpadId, "GetNpadId"},
-            {13, &MFIUser::GetAvailabilityChangeEventHandle, "GetAvailabilityChangeEventHandle"},
+            {13, &MFIUser::AttachAvailabilityChangeEvent, "GetAvailabilityChangeEventHandle"},
         };
         // clang-format on
 
@@ -131,7 +135,7 @@ public:
     explicit NFC_AM(Core::System& system_) : ServiceFramework{system_, "nfc:am"} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, &NFC_AM::CreateAmInterface, "CreateAmInterface"},
+            {0, &NFC_AM::CreateAmNfcInterface, "CreateAmNfcInterface"},
         };
         // clang-format on
 
@@ -139,7 +143,7 @@ public:
     }
 
 private:
-    void CreateAmInterface(HLERequestContext& ctx) {
+    void CreateAmNfcInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFC, "called");
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -153,7 +157,7 @@ public:
     explicit NFC_MF_U(Core::System& system_) : ServiceFramework{system_, "nfc:mf:u"} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, &NFC_MF_U::CreateUserInterface, "CreateUserInterface"},
+            {0, &NFC_MF_U::CreateUserNfcInterface, "CreateUserNfcInterface"},
         };
         // clang-format on
 
@@ -161,7 +165,7 @@ public:
     }
 
 private:
-    void CreateUserInterface(HLERequestContext& ctx) {
+    void CreateUserNfcInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFC, "called");
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -175,7 +179,7 @@ public:
     explicit NFC_U(Core::System& system_) : ServiceFramework{system_, "nfc:user"} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, &NFC_U::CreateUserInterface, "CreateUserInterface"},
+            {0, &NFC_U::CreateUserNfcInterface, "CreateUserNfcInterface"},
         };
         // clang-format on
 
@@ -183,7 +187,7 @@ public:
     }
 
 private:
-    void CreateUserInterface(HLERequestContext& ctx) {
+    void CreateUserNfcInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFC, "called");
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -197,7 +201,7 @@ public:
     explicit NFC_SYS(Core::System& system_) : ServiceFramework{system_, "nfc:sys"} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, &NFC_SYS::CreateSystemInterface, "CreateSystemInterface"},
+            {0, &NFC_SYS::CreateSystemNfcInterface, "CreateSystemNfcInterface"},
         };
         // clang-format on
 
@@ -205,7 +209,7 @@ public:
     }
 
 private:
-    void CreateSystemInterface(HLERequestContext& ctx) {
+    void CreateSystemNfcInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFC, "called");
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -221,6 +225,7 @@ void LoopProcess(Core::System& system) {
     server_manager->RegisterNamedService("nfc:mf:u", std::make_shared<NFC_MF_U>(system));
     server_manager->RegisterNamedService("nfc:user", std::make_shared<NFC_U>(system));
     server_manager->RegisterNamedService("nfc:sys", std::make_shared<NFC_SYS>(system));
+
     ServerManager::RunServer(std::move(server_manager));
 }
 

src/core/hle/service/nfc/nfc_device.cpp

@@ -1,287 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#include "common/input.h"
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/hid/emulated_controller.h"
-#include "core/hid/hid_core.h"
-#include "core/hid/hid_types.h"
-#include "core/hle/kernel/k_event.h"
-#include "core/hle/service/ipc_helpers.h"
-#include "core/hle/service/nfc/nfc_device.h"
-#include "core/hle/service/nfc/nfc_result.h"
-
-namespace Service::NFC {
-NfcDevice::NfcDevice(Core::HID::NpadIdType npad_id_, Core::System& system_,
-                     KernelHelpers::ServiceContext& service_context_,
-                     Kernel::KEvent* availability_change_event_)
-    : npad_id{npad_id_}, system{system_}, service_context{service_context_},
-      availability_change_event{availability_change_event_} {
-    activate_event = service_context.CreateEvent("IUser:NFCActivateEvent");
-    deactivate_event = service_context.CreateEvent("IUser:NFCDeactivateEvent");
-    npad_device = system.HIDCore().GetEmulatedController(npad_id);
-
-    Core::HID::ControllerUpdateCallback engine_callback{
-        .on_change = [this](Core::HID::ControllerTriggerType type) { NpadUpdate(type); },
-        .is_npad_service = false,
-    };
-    is_controller_set = true;
-    callback_key = npad_device->SetCallback(engine_callback);
-}
-
-NfcDevice::~NfcDevice() {
-    activate_event->Close();
-    deactivate_event->Close();
-    if (!is_controller_set) {
-        return;
-    }
-    npad_device->DeleteCallback(callback_key);
-    is_controller_set = false;
-};
-
-void NfcDevice::NpadUpdate(Core::HID::ControllerTriggerType type) {
-    if (!is_initalized) {
-        return;
-    }
-
-    if (type == Core::HID::ControllerTriggerType::Connected) {
-        Initialize();
-        availability_change_event->Signal();
-        return;
-    }
-
-    if (type == Core::HID::ControllerTriggerType::Disconnected) {
-        device_state = NFP::DeviceState::Unavailable;
-        availability_change_event->Signal();
-        return;
-    }
-
-    if (type != Core::HID::ControllerTriggerType::Nfc) {
-        return;
-    }
-
-    if (!npad_device->IsConnected()) {
-        return;
-    }
-
-    const auto nfc_status = npad_device->GetNfc();
-    switch (nfc_status.state) {
-    case Common::Input::NfcState::NewAmiibo:
-        LoadNfcTag(nfc_status.data);
-        break;
-    case Common::Input::NfcState::AmiiboRemoved:
-        if (device_state != NFP::DeviceState::SearchingForTag) {
-            CloseNfcTag();
-        }
-        break;
-    default:
-        break;
-    }
-}
-
-bool NfcDevice::LoadNfcTag(std::span<const u8> data) {
-    if (device_state != NFP::DeviceState::SearchingForTag) {
-        LOG_ERROR(Service_NFC, "Game is not looking for nfc tag, current state {}", device_state);
-        return false;
-    }
-
-    if (data.size() < sizeof(NFP::EncryptedNTAG215File)) {
-        LOG_ERROR(Service_NFC, "Not an amiibo, size={}", data.size());
-        return false;
-    }
-
-    tag_data.resize(data.size());
-    memcpy(tag_data.data(), data.data(), data.size());
-    memcpy(&encrypted_tag_data, data.data(), sizeof(NFP::EncryptedNTAG215File));
-
-    device_state = NFP::DeviceState::TagFound;
-    deactivate_event->GetReadableEvent().Clear();
-    activate_event->Signal();
-    return true;
-}
-
-void NfcDevice::CloseNfcTag() {
-    LOG_INFO(Service_NFC, "Remove nfc tag");
-
-    device_state = NFP::DeviceState::TagRemoved;
-    encrypted_tag_data = {};
-    activate_event->GetReadableEvent().Clear();
-    deactivate_event->Signal();
-}
-
-Kernel::KReadableEvent& NfcDevice::GetActivateEvent() const {
-    return activate_event->GetReadableEvent();
-}
-
-Kernel::KReadableEvent& NfcDevice::GetDeactivateEvent() const {
-    return deactivate_event->GetReadableEvent();
-}
-
-void NfcDevice::Initialize() {
-    device_state =
-        npad_device->HasNfc() ? NFP::DeviceState::Initialized : NFP::DeviceState::Unavailable;
-    encrypted_tag_data = {};
-    is_initalized = true;
-}
-
-void NfcDevice::Finalize() {
-    if (device_state == NFP::DeviceState::SearchingForTag ||
-        device_state == NFP::DeviceState::TagRemoved) {
-        StopDetection();
-    }
-    device_state = NFP::DeviceState::Unavailable;
-    is_initalized = false;
-}
-
-Result NfcDevice::StartDetection(NFP::TagProtocol allowed_protocol) {
-    if (device_state != NFP::DeviceState::Initialized &&
-        device_state != NFP::DeviceState::TagRemoved) {
-        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
-        return WrongDeviceState;
-    }
-
-    if (npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                    Common::Input::PollingMode::NFC) !=
-        Common::Input::DriverResult::Success) {
-        LOG_ERROR(Service_NFC, "Nfc not supported");
-        return NfcDisabled;
-    }
-
-    device_state = NFP::DeviceState::SearchingForTag;
-    allowed_protocols = allowed_protocol;
-    return ResultSuccess;
-}
-
-Result NfcDevice::StopDetection() {
-    npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
-                                Common::Input::PollingMode::Active);
-
-    if (device_state == NFP::DeviceState::Initialized) {
-        return ResultSuccess;
-    }
-
-    if (device_state == NFP::DeviceState::TagFound ||
-        device_state == NFP::DeviceState::TagMounted) {
-        CloseNfcTag();
-        return ResultSuccess;
-    }
-    if (device_state == NFP::DeviceState::SearchingForTag ||
-        device_state == NFP::DeviceState::TagRemoved) {
-        device_state = NFP::DeviceState::Initialized;
-        return ResultSuccess;
-    }
-
-    LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
-    return WrongDeviceState;
-}
-
-Result NfcDevice::Flush() {
-    if (device_state != NFP::DeviceState::TagFound &&
-        device_state != NFP::DeviceState::TagMounted) {
-        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
-        if (device_state == NFP::DeviceState::TagRemoved) {
-            return TagRemoved;
-        }
-        return WrongDeviceState;
-    }
-
-    if (!npad_device->WriteNfc(tag_data)) {
-        LOG_ERROR(Service_NFP, "Error writing to file");
-        return MifareReadError;
-    }
-
-    return ResultSuccess;
-}
-
-Result NfcDevice::GetTagInfo(NFP::TagInfo& tag_info, bool is_mifare) const {
-    if (device_state != NFP::DeviceState::TagFound &&
-        device_state != NFP::DeviceState::TagMounted) {
-        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
-        if (device_state == NFP::DeviceState::TagRemoved) {
-            return TagRemoved;
-        }
-        return WrongDeviceState;
-    }
-
-    if (is_mifare) {
-        tag_info = {
-            .uuid = encrypted_tag_data.uuid.uid,
-            .uuid_length = static_cast<u8>(encrypted_tag_data.uuid.uid.size()),
-            .protocol = NFP::TagProtocol::TypeA,
-            .tag_type = NFP::TagType::Type4,
-        };
-        return ResultSuccess;
-    }
-
-    // Protocol and tag type may change here
-    tag_info = {
-        .uuid = encrypted_tag_data.uuid.uid,
-        .uuid_length = static_cast<u8>(encrypted_tag_data.uuid.uid.size()),
-        .protocol = NFP::TagProtocol::TypeA,
-        .tag_type = NFP::TagType::Type2,
-    };
-
-    return ResultSuccess;
-}
-
-Result NfcDevice::MifareRead(const NFP::MifareReadBlockParameter& parameter,
-                             NFP::MifareReadBlockData& read_block_data) {
-    const std::size_t sector_index = parameter.sector_number * sizeof(NFP::DataBlock);
-    read_block_data.sector_number = parameter.sector_number;
-
-    if (device_state != NFP::DeviceState::TagFound &&
-        device_state != NFP::DeviceState::TagMounted) {
-        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
-        if (device_state == NFP::DeviceState::TagRemoved) {
-            return TagRemoved;
-        }
-        return WrongDeviceState;
-    }
-
-    if (tag_data.size() < sector_index + sizeof(NFP::DataBlock)) {
-        return MifareReadError;
-    }
-
-    // TODO: Use parameter.sector_key to read encrypted data
-    memcpy(read_block_data.data.data(), tag_data.data() + sector_index, sizeof(NFP::DataBlock));
-
-    return ResultSuccess;
-}
-
-Result NfcDevice::MifareWrite(const NFP::MifareWriteBlockParameter& parameter) {
-    const std::size_t sector_index = parameter.sector_number * sizeof(NFP::DataBlock);
-
-    if (device_state != NFP::DeviceState::TagFound &&
-        device_state != NFP::DeviceState::TagMounted) {
-        LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
-        if (device_state == NFP::DeviceState::TagRemoved) {
-            return TagRemoved;
-        }
-        return WrongDeviceState;
-    }
-
-    if (tag_data.size() < sector_index + sizeof(NFP::DataBlock)) {
-        return MifareReadError;
-    }
-
-    // TODO: Use parameter.sector_key to encrypt the data
-    memcpy(tag_data.data() + sector_index, parameter.data.data(), sizeof(NFP::DataBlock));
-
-    return ResultSuccess;
-}
-
-u64 NfcDevice::GetHandle() const {
-    // Generate a handle based of the npad id
-    return static_cast<u64>(npad_id);
-}
-
-NFP::DeviceState NfcDevice::GetCurrentState() const {
-    return device_state;
-}
-
-Core::HID::NpadIdType NfcDevice::GetNpadId() const {
-    return npad_id;
-}
-
-} // namespace Service::NFC

src/core/hle/service/nfc/nfc_device.h

@@ -1,78 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include "common/common_types.h"
-#include "core/hle/service/kernel_helpers.h"
-#include "core/hle/service/nfp/nfp_types.h"
-#include "core/hle/service/service.h"
-
-namespace Kernel {
-class KEvent;
-class KReadableEvent;
-} // namespace Kernel
-
-namespace Core {
-class System;
-} // namespace Core
-
-namespace Core::HID {
-class EmulatedController;
-enum class ControllerTriggerType;
-enum class NpadIdType : u32;
-} // namespace Core::HID
-
-namespace Service::NFC {
-class NfcDevice {
-public:
-    NfcDevice(Core::HID::NpadIdType npad_id_, Core::System& system_,
-              KernelHelpers::ServiceContext& service_context_,
-              Kernel::KEvent* availability_change_event_);
-    ~NfcDevice();
-
-    void Initialize();
-    void Finalize();
-
-    Result StartDetection(NFP::TagProtocol allowed_protocol);
-    Result StopDetection();
-    Result Flush();
-
-    Result GetTagInfo(NFP::TagInfo& tag_info, bool is_mifare) const;
-
-    Result MifareRead(const NFP::MifareReadBlockParameter& parameter,
-                      NFP::MifareReadBlockData& read_block_data);
-
-    Result MifareWrite(const NFP::MifareWriteBlockParameter& parameter);
-
-    u64 GetHandle() const;
-    NFP::DeviceState GetCurrentState() const;
-    Core::HID::NpadIdType GetNpadId() const;
-
-    Kernel::KReadableEvent& GetActivateEvent() const;
-    Kernel::KReadableEvent& GetDeactivateEvent() const;
-
-private:
-    void NpadUpdate(Core::HID::ControllerTriggerType type);
-    bool LoadNfcTag(std::span<const u8> data);
-    void CloseNfcTag();
-
-    bool is_controller_set{};
-    int callback_key;
-    const Core::HID::NpadIdType npad_id;
-    Core::System& system;
-    Core::HID::EmulatedController* npad_device = nullptr;
-    KernelHelpers::ServiceContext& service_context;
-    Kernel::KEvent* activate_event = nullptr;
-    Kernel::KEvent* deactivate_event = nullptr;
-    Kernel::KEvent* availability_change_event = nullptr;
-
-    bool is_initalized{};
-    NFP::TagProtocol allowed_protocols{};
-    NFP::DeviceState device_state{NFP::DeviceState::Unavailable};
-
-    NFP::EncryptedNTAG215File encrypted_tag_data{};
-    std::vector<u8> tag_data{};
-};
-
-} // namespace Service::NFC

src/core/hle/service/nfc/nfc_interface.cpp

@@ -6,55 +6,56 @@
 #include "core/hid/hid_types.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/service/ipc_helpers.h"
-#include "core/hle/service/nfc/nfc_device.h"
+#include "core/hle/service/nfc/common/device.h"
+#include "core/hle/service/nfc/common/device_manager.h"
+#include "core/hle/service/nfc/mifare_result.h"
+#include "core/hle/service/nfc/mifare_types.h"
 #include "core/hle/service/nfc/nfc_interface.h"
 #include "core/hle/service/nfc/nfc_result.h"
+#include "core/hle/service/nfc/nfc_types.h"
+#include "core/hle/service/nfp/nfp_result.h"
 #include "core/hle/service/time/clock_types.h"
 
 namespace Service::NFC {
 
-Interface::Interface(Core::System& system_, const char* name)
-    : ServiceFramework{system_, name}, service_context{system_, service_name} {
-    availability_change_event = service_context.CreateEvent("Interface:AvailabilityChangeEvent");
+NfcInterface::NfcInterface(Core::System& system_, const char* name, BackendType service_backend)
+    : ServiceFramework{system_, name}, service_context{system_, service_name},
+      backend_type{service_backend} {}
 
-    for (u32 device_index = 0; device_index < 10; device_index++) {
-        devices[device_index] =
-            std::make_shared<NfcDevice>(Core::HID::IndexToNpadIdType(device_index), system,
-                                        service_context, availability_change_event);
-    }
-}
+NfcInterface ::~NfcInterface() = default;
 
-Interface ::~Interface() {
-    availability_change_event->Close();
-}
-
-void Interface::Initialize(HLERequestContext& ctx) {
+void NfcInterface::Initialize(HLERequestContext& ctx) {
     LOG_INFO(Service_NFC, "called");
 
-    state = State::Initialized;
+    auto manager = GetManager();
+    auto result = manager->Initialize();
 
-    for (auto& device : devices) {
-        device->Initialize();
+    if (result.IsSuccess()) {
+        state = State::Initialized;
+    } else {
+        manager->Finalize();
     }
 
     IPC::ResponseBuilder rb{ctx, 2, 0};
-    rb.Push(ResultSuccess);
+    rb.Push(result);
 }
 
-void Interface::Finalize(HLERequestContext& ctx) {
+void NfcInterface::Finalize(HLERequestContext& ctx) {
     LOG_INFO(Service_NFC, "called");
 
-    state = State::NonInitialized;
-
-    for (auto& device : devices) {
-        device->Finalize();
+    if (state != State::NonInitialized) {
+        if (GetBackendType() != BackendType::None) {
+            GetManager()->Finalize();
+        }
+        device_manager = nullptr;
+        state = State::NonInitialized;
     }
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(ResultSuccess);
 }
 
-void Interface::GetState(HLERequestContext& ctx) {
+void NfcInterface::GetState(HLERequestContext& ctx) {
     LOG_DEBUG(Service_NFC, "called");
 
     IPC::ResponseBuilder rb{ctx, 3};
@@ -62,50 +63,28 @@ void Interface::GetState(HLERequestContext& ctx) {
     rb.PushEnum(state);
 }
 
-void Interface::IsNfcEnabled(HLERequestContext& ctx) {
+void NfcInterface::IsNfcEnabled(HLERequestContext& ctx) {
     LOG_DEBUG(Service_NFC, "called");
 
+    // TODO: This calls nn::settings::detail::GetNfcEnableFlag
+    const bool is_enabled = true;
+
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(ResultSuccess);
-    rb.Push(state != State::NonInitialized);
+    rb.Push(is_enabled);
 }
 
-void Interface::ListDevices(HLERequestContext& ctx) {
-    LOG_DEBUG(Service_NFC, "called");
-
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
-
-    if (!ctx.CanWriteBuffer()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(InvalidArgument);
-        return;
-    }
-
-    if (ctx.GetWriteBufferSize() == 0) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(InvalidArgument);
-        return;
-    }
-
+void NfcInterface::ListDevices(HLERequestContext& ctx) {
     std::vector<u64> nfp_devices;
     const std::size_t max_allowed_devices = ctx.GetWriteBufferNumElements<u64>();
+    LOG_DEBUG(Service_NFC, "called");
 
-    for (auto& device : devices) {
-        if (nfp_devices.size() >= max_allowed_devices) {
-            continue;
-        }
-        if (device->GetCurrentState() != NFP::DeviceState::Unavailable) {
-            nfp_devices.push_back(device->GetHandle());
-        }
-    }
+    auto result = GetManager()->ListDevices(nfp_devices, max_allowed_devices);
+    result = TranslateResultToServiceError(result);
 
-    if (nfp_devices.empty()) {
+    if (result.IsError()) {
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
+        rb.Push(result);
         return;
     }
 
@@ -116,210 +95,177 @@ void Interface::ListDevices(HLERequestContext& ctx) {
     rb.Push(static_cast<s32>(nfp_devices.size()));
 }
 
-void Interface::GetDeviceState(HLERequestContext& ctx) {
+void NfcInterface::GetDeviceState(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
 
-    auto device = GetNfcDevice(device_handle);
+    const auto device_state = GetManager()->GetDeviceState(device_handle);
 
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
-        return;
+    if (device_state > DeviceState::Finalized) {
+        ASSERT_MSG(false, "Invalid device state");
     }
 
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(ResultSuccess);
-    rb.PushEnum(device.value()->GetCurrentState());
+    rb.PushEnum(device_state);
 }
 
-void Interface::GetNpadId(HLERequestContext& ctx) {
+void NfcInterface::GetNpadId(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
 
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
+    Core::HID::NpadIdType npad_id{};
+    auto result = GetManager()->GetNpadId(device_handle, npad_id);
+    result = TranslateResultToServiceError(result);
 
-    if (!device.has_value()) {
+    if (result.IsError()) {
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
+        rb.Push(result);
         return;
     }
 
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(ResultSuccess);
-    rb.PushEnum(device.value()->GetNpadId());
+    rb.PushEnum(npad_id);
 }
 
-void Interface::AttachAvailabilityChangeEvent(HLERequestContext& ctx) {
+void NfcInterface::AttachAvailabilityChangeEvent(HLERequestContext& ctx) {
     LOG_INFO(Service_NFC, "called");
 
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
-
     IPC::ResponseBuilder rb{ctx, 2, 1};
     rb.Push(ResultSuccess);
-    rb.PushCopyObjects(availability_change_event->GetReadableEvent());
+    rb.PushCopyObjects(GetManager()->AttachAvailabilityChangeEvent());
 }
 
-void Interface::StartDetection(HLERequestContext& ctx) {
+void NfcInterface::StartDetection(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
-    const auto nfp_protocol{rp.PopEnum<NFP::TagProtocol>()};
-    LOG_INFO(Service_NFC, "called, device_handle={}, nfp_protocol={}", device_handle, nfp_protocol);
+    const auto tag_protocol{rp.PopEnum<NfcProtocol>()};
+    LOG_INFO(Service_NFC, "called, device_handle={}, nfp_protocol={}", device_handle, tag_protocol);
 
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
+    auto result = GetManager()->StartDetection(device_handle, tag_protocol);
+    result = TranslateResultToServiceError(result);
 
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
-        return;
-    }
-
-    const auto result = device.value()->StartDetection(nfp_protocol);
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(result);
 }
 
-void Interface::StopDetection(HLERequestContext& ctx) {
+void NfcInterface::StopDetection(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFC, "called, device_handle={}", device_handle);
 
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
-        return;
-    }
+    auto result = GetManager()->StopDetection(device_handle);
+    result = TranslateResultToServiceError(result);
 
-    const auto result = device.value()->StopDetection();
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(result);
 }
 
-void Interface::GetTagInfo(HLERequestContext& ctx) {
+void NfcInterface::GetTagInfo(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_INFO(Service_NFC, "called, device_handle={}", device_handle);
 
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
+    TagInfo tag_info{};
+    auto result =
+        GetManager()->GetTagInfo(device_handle, tag_info, backend_type == BackendType::Mifare);
+    result = TranslateResultToServiceError(result);
 
-    auto device = GetNfcDevice(device_handle);
-
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
-        return;
+    if (result.IsSuccess()) {
+        ctx.WriteBuffer(tag_info);
     }
 
-    NFP::TagInfo tag_info{};
-    const auto result = device.value()->GetTagInfo(tag_info, false);
-    ctx.WriteBuffer(tag_info);
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(result);
 }
 
-void Interface::AttachActivateEvent(HLERequestContext& ctx) {
+void NfcInterface::AttachActivateEvent(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
 
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(GetManager()->AttachActivateEvent(device_handle));
+}
 
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
-        return;
-    }
+void NfcInterface::AttachDeactivateEvent(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
 
     IPC::ResponseBuilder rb{ctx, 2, 1};
     rb.Push(ResultSuccess);
-    rb.PushCopyObjects(device.value()->GetActivateEvent());
+    rb.PushCopyObjects(GetManager()->AttachDeactivateEvent(device_handle));
 }
 
-void Interface::AttachDeactivateEvent(HLERequestContext& ctx) {
+void NfcInterface::ReadMifare(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
-    LOG_DEBUG(Service_NFC, "called, device_handle={}", device_handle);
+    const auto buffer{ctx.ReadBuffer()};
+    const auto number_of_commands{ctx.GetReadBufferNumElements<MifareReadBlockParameter>()};
+    std::vector<MifareReadBlockParameter> read_commands(number_of_commands);
 
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
+    memcpy(read_commands.data(), buffer.data(),
+           number_of_commands * sizeof(MifareReadBlockParameter));
 
-    auto device = GetNfcDevice(device_handle);
+    LOG_INFO(Service_NFC, "(STUBBED) called, device_handle={}, read_commands_size={}",
+             device_handle, number_of_commands);
 
-    if (!device.has_value()) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
-        return;
+    std::vector<MifareReadBlockData> out_data(number_of_commands);
+    auto result = GetManager()->ReadMifare(device_handle, read_commands, out_data);
+    result = TranslateResultToServiceError(result);
+
+    if (result.IsSuccess()) {
+        ctx.WriteBuffer(out_data);
     }
 
-    IPC::ResponseBuilder rb{ctx, 2, 1};
-    rb.Push(ResultSuccess);
-    rb.PushCopyObjects(device.value()->GetDeactivateEvent());
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+void NfcInterface::WriteMifare(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto buffer{ctx.ReadBuffer()};
+    const auto number_of_commands{ctx.GetReadBufferNumElements<MifareWriteBlockParameter>()};
+    std::vector<MifareWriteBlockParameter> write_commands(number_of_commands);
+
+    memcpy(write_commands.data(), buffer.data(),
+           number_of_commands * sizeof(MifareWriteBlockParameter));
+
+    LOG_INFO(Service_NFC, "(STUBBED) called, device_handle={}, write_commands_size={}",
+             device_handle, number_of_commands);
+
+    auto result = GetManager()->WriteMifare(device_handle, write_commands);
+    result = TranslateResultToServiceError(result);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
 }
 
-void Interface::SendCommandByPassThrough(HLERequestContext& ctx) {
+void NfcInterface::SendCommandByPassThrough(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
     const auto timeout{rp.PopRaw<Time::Clock::TimeSpanType>()};
     const auto command_data{ctx.ReadBuffer()};
-
     LOG_INFO(Service_NFC, "(STUBBED) called, device_handle={}, timeout={}, data_size={}",
              device_handle, timeout.ToSeconds(), command_data.size());
 
-    if (state == State::NonInitialized) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(NfcDisabled);
-        return;
-    }
-
-    auto device = GetNfcDevice(device_handle);
+    std::vector<u8> out_data(1);
+    auto result =
+        GetManager()->SendCommandByPassThrough(device_handle, timeout, command_data, out_data);
+    result = TranslateResultToServiceError(result);
 
-    if (!device.has_value()) {
+    if (result.IsError()) {
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(DeviceNotFound);
+        rb.Push(result);
         return;
     }
 
-    std::vector<u8> out_data(1);
-    // TODO: Request data from nfc device
     ctx.WriteBuffer(out_data);
 
     IPC::ResponseBuilder rb{ctx, 3};
@@ -327,13 +273,110 @@ void Interface::SendCommandByPassThrough(HLERequestContext& ctx) {
     rb.Push(static_cast<u32>(out_data.size()));
 }
 
-std::optional<std::shared_ptr<NfcDevice>> Interface::GetNfcDevice(u64 handle) {
-    for (auto& device : devices) {
-        if (device->GetHandle() == handle) {
-            return device;
+std::shared_ptr<DeviceManager> NfcInterface::GetManager() {
+    if (device_manager == nullptr) {
+        device_manager = std::make_shared<DeviceManager>(system, service_context);
+    }
+    return device_manager;
+}
+
+BackendType NfcInterface::GetBackendType() const {
+    return backend_type;
+}
+
+Result NfcInterface::TranslateResultToServiceError(Result result) const {
+    const auto backend = GetBackendType();
+
+    if (result.IsSuccess()) {
+        return result;
+    }
+
+    if (result.module != ErrorModule::NFC) {
+        return result;
+    }
+
+    switch (backend) {
+    case BackendType::Mifare:
+        return TranslateResultToNfp(result);
+    case BackendType::Nfp: {
+        return TranslateResultToNfp(result);
+    }
+    default:
+        if (result != ResultUnknown216) {
+            return result;
         }
+        return ResultUnknown74;
+    }
+}
+
+Result NfcInterface::TranslateResultToNfp(Result result) const {
+    if (result == ResultDeviceNotFound) {
+        return NFP::ResultDeviceNotFound;
+    }
+    if (result == ResultInvalidArgument) {
+        return NFP::ResultInvalidArgument;
+    }
+    if (result == ResultWrongApplicationAreaSize) {
+        return NFP::ResultWrongApplicationAreaSize;
+    }
+    if (result == ResultWrongDeviceState) {
+        return NFP::ResultWrongDeviceState;
+    }
+    if (result == ResultUnknown74) {
+        return NFP::ResultUnknown74;
+    }
+    if (result == ResultNfcDisabled) {
+        return NFP::ResultNfcDisabled;
+    }
+    if (result == ResultNfcNotInitialized) {
+        return NFP::ResultNfcDisabled;
+    }
+    if (result == ResultWriteAmiiboFailed) {
+        return NFP::ResultWriteAmiiboFailed;
+    }
+    if (result == ResultTagRemoved) {
+        return NFP::ResultTagRemoved;
+    }
+    if (result == ResultRegistrationIsNotInitialized) {
+        return NFP::ResultRegistrationIsNotInitialized;
+    }
+    if (result == ResultApplicationAreaIsNotInitialized) {
+        return NFP::ResultApplicationAreaIsNotInitialized;
+    }
+    if (result == ResultCorruptedData) {
+        return NFP::ResultCorruptedData;
+    }
+    if (result == ResultWrongApplicationAreaId) {
+        return NFP::ResultWrongApplicationAreaId;
+    }
+    if (result == ResultApplicationAreaExist) {
+        return NFP::ResultApplicationAreaExist;
+    }
+    if (result == ResultNotAnAmiibo) {
+        return NFP::ResultNotAnAmiibo;
+    }
+    LOG_WARNING(Service_NFC, "Result conversion not handled");
+    return result;
+}
+
+Result NfcInterface::TranslateResultToMifare(Result result) const {
+    if (result == ResultDeviceNotFound) {
+        return Mifare::ResultDeviceNotFound;
+    }
+    if (result == ResultInvalidArgument) {
+        return Mifare::ResultInvalidArgument;
+    }
+    if (result == ResultWrongDeviceState) {
+        return Mifare::ResultWrongDeviceState;
+    }
+    if (result == ResultNfcDisabled) {
+        return Mifare::ResultNfcDisabled;
+    }
+    if (result == ResultTagRemoved) {
+        return Mifare::ResultTagRemoved;
     }
-    return std::nullopt;
+    LOG_WARNING(Service_NFC, "Result conversion not handled");
+    return result;
 }
 
 } // namespace Service::NFC

src/core/hle/service/nfc/nfc_interface.h

@@ -3,20 +3,17 @@
 
 #pragma once
 
-#include <array>
-#include <memory>
-#include <optional>
-
 #include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/nfc/nfc_types.h"
 #include "core/hle/service/service.h"
 
 namespace Service::NFC {
-class NfcDevice;
+class DeviceManager;
 
-class Interface : public ServiceFramework<Interface> {
+class NfcInterface : public ServiceFramework<NfcInterface> {
 public:
-    explicit Interface(Core::System& system_, const char* name);
-    ~Interface();
+    explicit NfcInterface(Core::System& system_, const char* name, BackendType service_backend);
+    ~NfcInterface();
 
     void Initialize(HLERequestContext& ctx);
     void Finalize(HLERequestContext& ctx);
@@ -31,22 +28,22 @@ public:
     void GetTagInfo(HLERequestContext& ctx);
     void AttachActivateEvent(HLERequestContext& ctx);
     void AttachDeactivateEvent(HLERequestContext& ctx);
+    void ReadMifare(HLERequestContext& ctx);
+    void WriteMifare(HLERequestContext& ctx);
     void SendCommandByPassThrough(HLERequestContext& ctx);
 
-private:
-    enum class State : u32 {
-        NonInitialized,
-        Initialized,
-    };
-
-    std::optional<std::shared_ptr<NfcDevice>> GetNfcDevice(u64 handle);
+protected:
+    std::shared_ptr<DeviceManager> GetManager();
+    BackendType GetBackendType() const;
+    Result TranslateResultToServiceError(Result result) const;
+    Result TranslateResultToNfp(Result result) const;
+    Result TranslateResultToMifare(Result result) const;
 
     KernelHelpers::ServiceContext service_context;
 
-    std::array<std::shared_ptr<NfcDevice>, 10> devices{};
-
+    BackendType backend_type;
     State state{State::NonInitialized};
-    Kernel::KEvent* availability_change_event;
+    std::shared_ptr<DeviceManager> device_manager = nullptr;
 };
 
 } // namespace Service::NFC

src/core/hle/service/nfc/nfc_result.h

@@ -1,5 +1,5 @@
-// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #pragma once
 
@@ -7,17 +7,22 @@
 
 namespace Service::NFC {
 
-constexpr Result DeviceNotFound(ErrorModule::NFC, 64);
-constexpr Result InvalidArgument(ErrorModule::NFC, 65);
-constexpr Result WrongDeviceState(ErrorModule::NFC, 73);
-constexpr Result NfcDisabled(ErrorModule::NFC, 80);
-constexpr Result TagRemoved(ErrorModule::NFC, 97);
-
-constexpr Result MifareDeviceNotFound(ErrorModule::NFCMifare, 64);
-constexpr Result MifareInvalidArgument(ErrorModule::NFCMifare, 65);
-constexpr Result MifareWrongDeviceState(ErrorModule::NFCMifare, 73);
-constexpr Result MifareNfcDisabled(ErrorModule::NFCMifare, 80);
-constexpr Result MifareTagRemoved(ErrorModule::NFCMifare, 97);
-constexpr Result MifareReadError(ErrorModule::NFCMifare, 288);
+constexpr Result ResultDeviceNotFound(ErrorModule::NFC, 64);
+constexpr Result ResultInvalidArgument(ErrorModule::NFC, 65);
+constexpr Result ResultWrongApplicationAreaSize(ErrorModule::NFP, 68);
+constexpr Result ResultWrongDeviceState(ErrorModule::NFC, 73);
+constexpr Result ResultUnknown74(ErrorModule::NFC, 74);
+constexpr Result ResultUnknown76(ErrorModule::NFC, 76);
+constexpr Result ResultNfcNotInitialized(ErrorModule::NFC, 77);
+constexpr Result ResultNfcDisabled(ErrorModule::NFC, 80);
+constexpr Result ResultWriteAmiiboFailed(ErrorModule::NFP, 88);
+constexpr Result ResultTagRemoved(ErrorModule::NFC, 97);
+constexpr Result ResultRegistrationIsNotInitialized(ErrorModule::NFP, 120);
+constexpr Result ResultApplicationAreaIsNotInitialized(ErrorModule::NFP, 128);
+constexpr Result ResultCorruptedData(ErrorModule::NFP, 144);
+constexpr Result ResultWrongApplicationAreaId(ErrorModule::NFP, 152);
+constexpr Result ResultApplicationAreaExist(ErrorModule::NFP, 168);
+constexpr Result ResultNotAnAmiibo(ErrorModule::NFP, 178);
+constexpr Result ResultUnknown216(ErrorModule::NFC, 216);
 
 } // namespace Service::NFC

src/core/hle/service/nfc/nfc_types.h

@@ -0,0 +1,90 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace Service::NFC {
+enum class BackendType : u32 {
+    None,
+    Nfc,
+    Nfp,
+    Mifare,
+};
+
+// This is nn::nfc::DeviceState
+enum class DeviceState : u32 {
+    Initialized,
+    SearchingForTag,
+    TagFound,
+    TagRemoved,
+    TagMounted,
+    Unavailable,
+    Finalized,
+};
+
+// This is nn::nfc::State
+enum class State : u32 {
+    NonInitialized,
+    Initialized,
+};
+
+// This is nn::nfc::TagType
+enum class TagType : u32 {
+    None,
+    Type1, // ISO14443A RW 96-2k bytes 106kbit/s
+    Type2, // ISO14443A RW/RO 540 bytes 106kbit/s
+    Type3, // Sony FeliCa RW/RO 2k bytes 212kbit/s
+    Type4, // ISO14443A RW/RO 4k-32k bytes 424kbit/s
+    Type5, // ISO15693 RW/RO 540 bytes 106kbit/s
+};
+
+enum class PackedTagType : u8 {
+    None,
+    Type1, // ISO14443A RW 96-2k bytes 106kbit/s
+    Type2, // ISO14443A RW/RO 540 bytes 106kbit/s
+    Type3, // Sony FeliCa RW/RO 2k bytes 212kbit/s
+    Type4, // ISO14443A RW/RO 4k-32k bytes 424kbit/s
+    Type5, // ISO15693 RW/RO 540 bytes 106kbit/s
+};
+
+// This is nn::nfc::NfcProtocol
+// Verify this enum. It might be completely wrong default protocol is 0x48
+enum class NfcProtocol : u32 {
+    None,
+    TypeA = 1U << 0, // ISO14443A
+    TypeB = 1U << 1, // ISO14443B
+    TypeF = 1U << 2, // Sony FeliCa
+    Unknown1 = 1U << 3,
+    Unknown2 = 1U << 5,
+    All = 0xFFFFFFFFU,
+};
+
+// this is nn::nfc::TestWaveType
+enum class TestWaveType : u32 {
+    Unknown,
+};
+
+using UniqueSerialNumber = std::array<u8, 7>;
+using UniqueSerialNumberExtension = std::array<u8, 3>;
+
+// This is nn::nfc::DeviceHandle
+using DeviceHandle = u64;
+
+// This is nn::nfc::TagInfo
+struct TagInfo {
+    UniqueSerialNumber uuid;
+    UniqueSerialNumberExtension uuid_extension;
+    u8 uuid_length;
+    INSERT_PADDING_BYTES(0x15);
+    NfcProtocol protocol;
+    TagType tag_type;
+    INSERT_PADDING_BYTES(0x30);
+};
+static_assert(sizeof(TagInfo) == 0x58, "TagInfo is an invalid size");
+
+} // namespace Service::NFC

src/core/hle/service/nfp/nfp.cpp

@@ -13,7 +13,7 @@ class IUser final : public Interface {
 public:
     explicit IUser(Core::System& system_) : Interface(system_, "NFP:IUser") {
         // clang-format off
-        static const FunctionInfo functions[] = {
+        static const FunctionInfoTyped<IUser> functions[] = {
             {0, &IUser::Initialize, "Initialize"},
             {1, &IUser::Finalize, "Finalize"},
             {2, &IUser::ListDevices, "ListDevices"},
@@ -50,7 +50,7 @@ class ISystem final : public Interface {
 public:
     explicit ISystem(Core::System& system_) : Interface(system_, "NFP:ISystem") {
         // clang-format off
-        static const FunctionInfo functions[] = {
+        static const FunctionInfoTyped<ISystem> functions[] = {
             {0, &ISystem::InitializeSystem, "InitializeSystem"},
             {1, &ISystem::FinalizeSystem, "FinalizeSystem"},
             {2, &ISystem::ListDevices, "ListDevices"},
@@ -89,7 +89,7 @@ class IDebug final : public Interface {
 public:
     explicit IDebug(Core::System& system_) : Interface(system_, "NFP:IDebug") {
         // clang-format off
-        static const FunctionInfo functions[] = {
+        static const FunctionInfoTyped<IDebug> functions[] = {
             {0, &IDebug::InitializeDebug, "InitializeDebug"},
             {1, &IDebug::FinalizeDebug, "FinalizeDebug"},
             {2, &IDebug::ListDevices, "ListDevices"},
@@ -126,9 +126,9 @@ public:
             {201, &IDebug::SetAll, "SetAll"},
             {202, &IDebug::FlushDebug, "FlushDebug"},
             {203, &IDebug::BreakTag, "BreakTag"},
-            {204, nullptr, "ReadBackupData"},
-            {205, nullptr, "WriteBackupData"},
-            {206, nullptr, "WriteNtf"},
+            {204, &IDebug::ReadBackupData, "ReadBackupData"},
+            {205, &IDebug::WriteBackupData, "WriteBackupData"},
+            {206, &IDebug::WriteNtf, "WriteNtf"},
         };
         // clang-format on
 

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

@@ -1,120 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <span>
-#include <vector>
-
-#include "common/common_types.h"
-#include "core/hle/service/kernel_helpers.h"
-#include "core/hle/service/nfp/nfp_types.h"
-#include "core/hle/service/service.h"
-
-namespace Kernel {
-class KEvent;
-class KReadableEvent;
-} // namespace Kernel
-
-namespace Core {
-class System;
-} // namespace Core
-
-namespace Core::HID {
-class EmulatedController;
-enum class ControllerTriggerType;
-enum class NpadIdType : u32;
-} // namespace Core::HID
-
-namespace Service::NFP {
-class NfpDevice {
-public:
-    NfpDevice(Core::HID::NpadIdType npad_id_, Core::System& system_,
-              KernelHelpers::ServiceContext& service_context_,
-              Kernel::KEvent* availability_change_event_);
-    ~NfpDevice();
-
-    void Initialize();
-    void Finalize();
-
-    Result StartDetection(TagProtocol allowed_protocol);
-    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();
-    Result SetRegisterInfoPrivate(const AmiiboName& amiibo_name);
-    Result RestoreAmiibo();
-    Result Format();
-
-    Result OpenApplicationArea(u32 access_id);
-    Result GetApplicationAreaId(u32& application_area_id) const;
-    Result GetApplicationArea(std::vector<u8>& data) const;
-    Result SetApplicationArea(std::span<const u8> data);
-    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;
-    DeviceState GetCurrentState() const;
-    Core::HID::NpadIdType GetNpadId() const;
-
-    Kernel::KReadableEvent& GetActivateEvent() const;
-    Kernel::KReadableEvent& GetDeactivateEvent() const;
-
-private:
-    void NpadUpdate(Core::HID::ControllerTriggerType type);
-    bool LoadAmiibo(std::span<const u8> data);
-    void CloseAmiibo();
-
-    AmiiboName GetAmiiboName(const AmiiboSettings& settings) const;
-    void SetAmiiboName(AmiiboSettings& settings, const AmiiboName& amiibo_name);
-    AmiiboDate GetAmiiboDate(s64 posix_time) const;
-    u64 RemoveVersionByte(u64 application_id) const;
-    void UpdateSettingsCrc();
-    void UpdateRegisterInfoCrc();
-
-    bool is_controller_set{};
-    int callback_key;
-    const Core::HID::NpadIdType npad_id;
-    Core::System& system;
-    Core::HID::EmulatedController* npad_device = nullptr;
-    KernelHelpers::ServiceContext& service_context;
-    Kernel::KEvent* activate_event = nullptr;
-    Kernel::KEvent* deactivate_event = nullptr;
-    Kernel::KEvent* availability_change_event = nullptr;
-
-    bool is_initalized{};
-    bool is_data_moddified{};
-    bool is_app_area_open{};
-    bool is_plain_amiibo{};
-    TagProtocol allowed_protocols{};
-    s64 current_posix_time{};
-    MountTarget mount_target{MountTarget::None};
-    DeviceState device_state{DeviceState::Unavailable};
-
-    NTAG215File tag_data{};
-    EncryptedNTAG215File encrypted_tag_data{};
-};
-
-} // namespace Service::NFP

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

@@ -1,32 +1,23 @@
-// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
-#include <array>
-#include <memory>
-#include <optional>
-
 #include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/nfc/nfc_interface.h"
 #include "core/hle/service/service.h"
 
 namespace Service::NFP {
-class NfpDevice;
 
-class Interface : public ServiceFramework<Interface> {
+class Interface : public NFC::NfcInterface {
 public:
     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);
     void Mount(HLERequestContext& ctx);
     void Unmount(HLERequestContext& ctx);
     void OpenApplicationArea(HLERequestContext& ctx);
@@ -35,17 +26,10 @@ public:
     void Flush(HLERequestContext& ctx);
     void Restore(HLERequestContext& ctx);
     void CreateApplicationArea(HLERequestContext& ctx);
-    void GetTagInfo(HLERequestContext& ctx);
     void GetRegisterInfo(HLERequestContext& ctx);
     void GetCommonInfo(HLERequestContext& ctx);
     void GetModelInfo(HLERequestContext& ctx);
-    void AttachActivateEvent(HLERequestContext& ctx);
-    void AttachDeactivateEvent(HLERequestContext& ctx);
-    void GetState(HLERequestContext& ctx);
-    void GetDeviceState(HLERequestContext& ctx);
-    void GetNpadId(HLERequestContext& ctx);
     void GetApplicationAreaSize(HLERequestContext& ctx);
-    void AttachAvailabilityChangeEvent(HLERequestContext& ctx);
     void RecreateApplicationArea(HLERequestContext& ctx);
     void Format(HLERequestContext& ctx);
     void GetAdminInfo(HLERequestContext& ctx);
@@ -61,21 +45,6 @@ public:
     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);
-
-    KernelHelpers::ServiceContext service_context;
-
-    std::array<std::shared_ptr<NfpDevice>, 10> devices{};
-
-    State state{State::NonInitialized};
-    Kernel::KEvent* availability_change_event;
 };
 
 } // namespace Service::NFP

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

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
@@ -7,18 +7,19 @@
 
 namespace Service::NFP {
 
-constexpr Result DeviceNotFound(ErrorModule::NFP, 64);
-constexpr Result InvalidArgument(ErrorModule::NFP, 65);
-constexpr Result WrongApplicationAreaSize(ErrorModule::NFP, 68);
-constexpr Result WrongDeviceState(ErrorModule::NFP, 73);
-constexpr Result NfcDisabled(ErrorModule::NFP, 80);
-constexpr Result WriteAmiiboFailed(ErrorModule::NFP, 88);
-constexpr Result TagRemoved(ErrorModule::NFP, 97);
-constexpr Result RegistrationIsNotInitialized(ErrorModule::NFP, 120);
-constexpr Result ApplicationAreaIsNotInitialized(ErrorModule::NFP, 128);
-constexpr Result CorruptedData(ErrorModule::NFP, 144);
-constexpr Result WrongApplicationAreaId(ErrorModule::NFP, 152);
-constexpr Result ApplicationAreaExist(ErrorModule::NFP, 168);
-constexpr Result NotAnAmiibo(ErrorModule::NFP, 178);
+constexpr Result ResultDeviceNotFound(ErrorModule::NFP, 64);
+constexpr Result ResultInvalidArgument(ErrorModule::NFP, 65);
+constexpr Result ResultWrongApplicationAreaSize(ErrorModule::NFP, 68);
+constexpr Result ResultWrongDeviceState(ErrorModule::NFP, 73);
+constexpr Result ResultUnknown74(ErrorModule::NFC, 74);
+constexpr Result ResultNfcDisabled(ErrorModule::NFP, 80);
+constexpr Result ResultWriteAmiiboFailed(ErrorModule::NFP, 88);
+constexpr Result ResultTagRemoved(ErrorModule::NFP, 97);
+constexpr Result ResultRegistrationIsNotInitialized(ErrorModule::NFP, 120);
+constexpr Result ResultApplicationAreaIsNotInitialized(ErrorModule::NFP, 128);
+constexpr Result ResultCorruptedData(ErrorModule::NFP, 144);
+constexpr Result ResultWrongApplicationAreaId(ErrorModule::NFP, 152);
+constexpr Result ResultApplicationAreaExist(ErrorModule::NFP, 168);
+constexpr Result ResultNotAnAmiibo(ErrorModule::NFP, 178);
 
 } // namespace Service::NFP

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

@@ -7,32 +7,19 @@
 
 #include "common/swap.h"
 #include "core/hle/service/mii/types.h"
+#include "core/hle/service/nfc/nfc_types.h"
 
 namespace Service::NFP {
 static constexpr std::size_t amiibo_name_length = 0xA;
 static constexpr std::size_t application_id_version_offset = 0x1c;
 static constexpr std::size_t counter_limit = 0xffff;
 
-enum class ServiceType : u32 {
-    User,
-    Debug,
-    System,
-};
-
-enum class DeviceState : u32 {
-    Initialized,
-    SearchingForTag,
-    TagFound,
-    TagRemoved,
-    TagMounted,
-    Unavailable,
-    Finalized,
-};
-
+// This is nn::nfp::ModelType
 enum class ModelType : u32 {
     Amiibo,
 };
 
+// This is nn::nfp::MountTarget
 enum class MountTarget : u32 {
     None,
     Rom,
@@ -72,35 +59,6 @@ enum class AmiiboSeries : u8 {
     Diablo,
 };
 
-enum class TagType : u32 {
-    None,
-    Type1, // ISO14443A RW 96-2k bytes 106kbit/s
-    Type2, // ISO14443A RW/RO 540 bytes 106kbit/s
-    Type3, // Sony Felica RW/RO 2k bytes 212kbit/s
-    Type4, // ISO14443A RW/RO 4k-32k bytes 424kbit/s
-    Type5, // ISO15693 RW/RO 540 bytes 106kbit/s
-};
-
-enum class PackedTagType : u8 {
-    None,
-    Type1, // ISO14443A RW 96-2k bytes 106kbit/s
-    Type2, // ISO14443A RW/RO 540 bytes 106kbit/s
-    Type3, // Sony Felica RW/RO 2k bytes 212kbit/s
-    Type4, // ISO14443A RW/RO 4k-32k bytes 424kbit/s
-    Type5, // ISO15693 RW/RO 540 bytes 106kbit/s
-};
-
-// Verify this enum. It might be completely wrong default protocol is 0x48
-enum class TagProtocol : u32 {
-    None,
-    TypeA = 1U << 0, // ISO14443A
-    TypeB = 1U << 1, // ISO14443B
-    TypeF = 1U << 2, // Sony Felica
-    Unknown1 = 1U << 3,
-    Unknown2 = 1U << 5,
-    All = 0xFFFFFFFFU,
-};
-
 enum class AppAreaVersion : u8 {
     Nintendo3DS = 0,
     NintendoWiiU = 1,
@@ -115,6 +73,11 @@ enum class BreakType : u32 {
     Unknown2,
 };
 
+enum class WriteType : u32 {
+    Unknown0,
+    Unknown1,
+};
+
 enum class CabinetMode : u8 {
     StartNicknameAndOwnerSettings,
     StartGameDataEraser,
@@ -122,27 +85,16 @@ enum class CabinetMode : u8 {
     StartFormatter,
 };
 
-enum class MifareCmd : u8 {
-    AuthA = 0x60,
-    AuthB = 0x61,
-    Read = 0x30,
-    Write = 0xA0,
-    Transfer = 0xB0,
-    Decrement = 0xC0,
-    Increment = 0xC1,
-    Store = 0xC2
-};
-
-using UniqueSerialNumber = std::array<u8, 7>;
 using LockBytes = std::array<u8, 2>;
 using HashData = std::array<u8, 0x20>;
 using ApplicationArea = std::array<u8, 0xD8>;
 using AmiiboName = std::array<char, (amiibo_name_length * 4) + 1>;
-using DataBlock = std::array<u8, 0x10>;
-using KeyData = std::array<u8, 0x6>;
+
+// This is nn::nfp::TagInfo
+using TagInfo = NFC::TagInfo;
 
 struct TagUuid {
-    UniqueSerialNumber uid;
+    NFC::UniqueSerialNumber uid;
     u8 nintendo_id;
     LockBytes lock_bytes;
 };
@@ -243,7 +195,7 @@ struct AmiiboModelInfo {
     AmiiboType amiibo_type;
     u16_be model_number;
     AmiiboSeries series;
-    PackedTagType tag_type;
+    NFC::PackedTagType tag_type;
     INSERT_PADDING_BYTES(0x4); // Unknown
 };
 static_assert(sizeof(AmiiboModelInfo) == 0xC, "AmiiboModelInfo is an invalid size");
@@ -298,7 +250,7 @@ struct NTAG215File {
     u32_be register_info_crc;
     ApplicationArea application_area; // Encrypted Game data
     HashData hmac_tag;                // Hash
-    UniqueSerialNumber uid;           // Unique serial number
+    NFC::UniqueSerialNumber uid;      // Unique serial number
     u8 nintendo_id;                   // Tag UUID
     AmiiboModelInfo model_info;
     HashData keygen_salt;     // Salt
@@ -326,17 +278,7 @@ static_assert(sizeof(EncryptedNTAG215File) == sizeof(NTAG215File),
 static_assert(std::is_trivially_copyable_v<EncryptedNTAG215File>,
               "EncryptedNTAG215File must be trivially copyable.");
 
-struct TagInfo {
-    UniqueSerialNumber uuid;
-    INSERT_PADDING_BYTES(0x3);
-    u8 uuid_length;
-    INSERT_PADDING_BYTES(0x15);
-    TagProtocol protocol;
-    TagType tag_type;
-    INSERT_PADDING_BYTES(0x30);
-};
-static_assert(sizeof(TagInfo) == 0x58, "TagInfo is an invalid size");
-
+// This is nn::nfp::CommonInfo
 struct CommonInfo {
     WriteDate last_write_date;
     u16 write_counter;
@@ -347,6 +289,7 @@ struct CommonInfo {
 };
 static_assert(sizeof(CommonInfo) == 0x40, "CommonInfo is an invalid size");
 
+// This is nn::nfp::ModelInfo
 struct ModelInfo {
     u16 character_id;
     u8 character_variant;
@@ -357,6 +300,7 @@ struct ModelInfo {
 };
 static_assert(sizeof(ModelInfo) == 0x40, "ModelInfo is an invalid size");
 
+// This is nn::nfp::RegisterInfo
 struct RegisterInfo {
     Service::Mii::CharInfo mii_char_info;
     WriteDate creation_date;
@@ -366,6 +310,7 @@ struct RegisterInfo {
 };
 static_assert(sizeof(RegisterInfo) == 0x100, "RegisterInfo is an invalid size");
 
+// This is nn::nfp::RegisterInfoPrivate
 struct RegisterInfoPrivate {
     Service::Mii::MiiStoreData mii_store_data;
     WriteDate creation_date;
@@ -375,12 +320,13 @@ struct RegisterInfoPrivate {
 };
 static_assert(sizeof(RegisterInfoPrivate) == 0x100, "RegisterInfoPrivate is an invalid size");
 
+// This is nn::nfp::AdminInfo
 struct AdminInfo {
     u64 application_id;
     u32 application_area_id;
     u16 crc_change_counter;
     u8 flags;
-    PackedTagType tag_type;
+    NFC::PackedTagType tag_type;
     AppAreaVersion app_area_version;
     INSERT_PADDING_BYTES(0x7);
     INSERT_PADDING_BYTES(0x28);
@@ -411,7 +357,7 @@ struct NfpData {
     u32 access_id;
     u16 settings_crc_counter;
     u8 font_region;
-    PackedTagType tag_type;
+    NFC::PackedTagType tag_type;
     AppAreaVersion console_type;
     u8 application_id_byte;
     INSERT_PADDING_BYTES(0x2E);
@@ -420,37 +366,4 @@ struct NfpData {
 static_assert(sizeof(NfpData) == 0x298, "NfpData is an invalid size");
 #pragma pack()
 
-struct SectorKey {
-    MifareCmd command;
-    u8 unknown; // Usually 1
-    INSERT_PADDING_BYTES(0x6);
-    KeyData sector_key;
-    INSERT_PADDING_BYTES(0x2);
-};
-static_assert(sizeof(SectorKey) == 0x10, "SectorKey is an invalid size");
-
-struct MifareReadBlockParameter {
-    u8 sector_number;
-    INSERT_PADDING_BYTES(0x7);
-    SectorKey sector_key;
-};
-static_assert(sizeof(MifareReadBlockParameter) == 0x18,
-              "MifareReadBlockParameter is an invalid size");
-
-struct MifareReadBlockData {
-    DataBlock data;
-    u8 sector_number;
-    INSERT_PADDING_BYTES(0x7);
-};
-static_assert(sizeof(MifareReadBlockData) == 0x18, "MifareReadBlockData is an invalid size");
-
-struct MifareWriteBlockParameter {
-    DataBlock data;
-    u8 sector_number;
-    INSERT_PADDING_BYTES(0x7);
-    SectorKey sector_key;
-};
-static_assert(sizeof(MifareWriteBlockParameter) == 0x28,
-              "MifareWriteBlockParameter is an invalid size");
-
 } // namespace Service::NFP

src/yuzu/applets/qt_amiibo_settings.cpp

@@ -8,7 +8,7 @@
 
 #include "common/assert.h"
 #include "common/string_util.h"
-#include "core/hle/service/nfp/nfp_device.h"
+#include "core/hle/service/nfc/common/device.h"
 #include "core/hle/service/nfp/nfp_result.h"
 #include "input_common/drivers/virtual_amiibo.h"
 #include "input_common/main.h"
@@ -22,7 +22,7 @@
 QtAmiiboSettingsDialog::QtAmiiboSettingsDialog(QWidget* parent,
                                                Core::Frontend::CabinetParameters parameters_,
                                                InputCommon::InputSubsystem* input_subsystem_,
-                                               std::shared_ptr<Service::NFP::NfpDevice> nfp_device_)
+                                               std::shared_ptr<Service::NFC::NfcDevice> nfp_device_)
     : QDialog(parent), ui(std::make_unique<Ui::QtAmiiboSettingsDialog>()),
       input_subsystem{input_subsystem_}, nfp_device{std::move(nfp_device_)},
       parameters(std::move(parameters_)) {
@@ -52,11 +52,11 @@ void QtAmiiboSettingsDialog::LoadInfo() {
         return;
     }
 
-    if (nfp_device->GetCurrentState() != Service::NFP::DeviceState::TagFound &&
-        nfp_device->GetCurrentState() != Service::NFP::DeviceState::TagMounted) {
+    if (nfp_device->GetCurrentState() != Service::NFC::DeviceState::TagFound &&
+        nfp_device->GetCurrentState() != Service::NFC::DeviceState::TagMounted) {
         return;
     }
-    nfp_device->Mount(Service::NFP::MountTarget::All);
+    nfp_device->Mount(Service::NFP::ModelType::Amiibo, Service::NFP::MountTarget::All);
 
     LoadAmiiboInfo();
     LoadAmiiboData();
@@ -261,7 +261,7 @@ void QtAmiiboSettings::Close() const {
 void QtAmiiboSettings::ShowCabinetApplet(
     const Core::Frontend::CabinetCallback& callback_,
     const Core::Frontend::CabinetParameters& parameters,
-    std::shared_ptr<Service::NFP::NfpDevice> nfp_device) const {
+    std::shared_ptr<Service::NFC::NfcDevice> nfp_device) const {
     callback = std::move(callback_);
     emit MainWindowShowAmiiboSettings(parameters, nfp_device);
 }

src/yuzu/applets/qt_amiibo_settings.h

@@ -23,9 +23,9 @@ namespace Ui {
 class QtAmiiboSettingsDialog;
 }
 
-namespace Service::NFP {
-class NfpDevice;
-} // namespace Service::NFP
+namespace Service::NFC {
+class NfcDevice;
+} // namespace Service::NFC
 
 class QtAmiiboSettingsDialog final : public QDialog {
     Q_OBJECT
@@ -33,7 +33,7 @@ class QtAmiiboSettingsDialog final : public QDialog {
 public:
     explicit QtAmiiboSettingsDialog(QWidget* parent, Core::Frontend::CabinetParameters parameters_,
                                     InputCommon::InputSubsystem* input_subsystem_,
-                                    std::shared_ptr<Service::NFP::NfpDevice> nfp_device_);
+                                    std::shared_ptr<Service::NFC::NfcDevice> nfp_device_);
     ~QtAmiiboSettingsDialog() override;
 
     int exec() override;
@@ -52,7 +52,7 @@ private:
     std::unique_ptr<Ui::QtAmiiboSettingsDialog> ui;
 
     InputCommon::InputSubsystem* input_subsystem;
-    std::shared_ptr<Service::NFP::NfpDevice> nfp_device;
+    std::shared_ptr<Service::NFC::NfcDevice> nfp_device;
 
     // Parameters sent in from the backend HLE applet.
     Core::Frontend::CabinetParameters parameters;
@@ -71,11 +71,11 @@ public:
     void Close() const override;
     void ShowCabinetApplet(const Core::Frontend::CabinetCallback& callback_,
                            const Core::Frontend::CabinetParameters& parameters,
-                           std::shared_ptr<Service::NFP::NfpDevice> nfp_device) const override;
+                           std::shared_ptr<Service::NFC::NfcDevice> nfp_device) const override;
 
 signals:
     void MainWindowShowAmiiboSettings(const Core::Frontend::CabinetParameters& parameters,
-                                      std::shared_ptr<Service::NFP::NfpDevice> nfp_device) const;
+                                      std::shared_ptr<Service::NFC::NfcDevice> nfp_device) const;
     void MainWindowRequestExit() const;
 
 private:

src/yuzu/main.cpp

@@ -570,8 +570,8 @@ void GMainWindow::RegisterMetaTypes() {
 
     // Cabinet Applet
     qRegisterMetaType<Core::Frontend::CabinetParameters>("Core::Frontend::CabinetParameters");
-    qRegisterMetaType<std::shared_ptr<Service::NFP::NfpDevice>>(
-        "std::shared_ptr<Service::NFP::NfpDevice>");
+    qRegisterMetaType<std::shared_ptr<Service::NFC::NfcDevice>>(
+        "std::shared_ptr<Service::NFC::NfcDevice>");
 
     // Controller Applet
     qRegisterMetaType<Core::Frontend::ControllerParameters>("Core::Frontend::ControllerParameters");
@@ -599,7 +599,7 @@ void GMainWindow::RegisterMetaTypes() {
 }
 
 void GMainWindow::AmiiboSettingsShowDialog(const Core::Frontend::CabinetParameters& parameters,
-                                           std::shared_ptr<Service::NFP::NfpDevice> nfp_device) {
+                                           std::shared_ptr<Service::NFC::NfcDevice> nfp_device) {
     cabinet_applet =
         new QtAmiiboSettingsDialog(this, parameters, input_subsystem.get(), nfp_device);
     SCOPE_EXIT({

src/yuzu/main.h

@@ -93,9 +93,9 @@ enum class SwkbdReplyType : u32;
 enum class WebExitReason : u32;
 } // namespace Service::AM::Applets
 
-namespace Service::NFP {
-class NfpDevice;
-} // namespace Service::NFP
+namespace Service::NFC {
+class NfcDevice;
+} // namespace Service::NFC
 
 namespace Ui {
 class MainWindow;
@@ -188,7 +188,7 @@ public slots:
     void OnExit();
     void OnSaveConfig();
     void AmiiboSettingsShowDialog(const Core::Frontend::CabinetParameters& parameters,
-                                  std::shared_ptr<Service::NFP::NfpDevice> nfp_device);
+                                  std::shared_ptr<Service::NFC::NfcDevice> nfp_device);
     void AmiiboSettingsRequestExit();
     void ControllerSelectorReconfigureControllers(
         const Core::Frontend::ControllerParameters& parameters);