5 files changed, 114 insertions, 230 deletions

diff --git a/src/core/hle/service/nfp/amiibo_crypto.cpp b/src/core/hle/service/nfp/amiibo_crypto.cpp
index 211e518b0..d9d0c8f62 100644
--- a/src/core/hle/service/nfp/amiibo_crypto.cpp
+++ b/src/core/hle/service/nfp/amiibo_crypto.cpp
@@ -16,76 +16,6 @@
 
 namespace Service::NFP::AmiiboCrypto {
 
-Service::Mii::MiiInfo AmiiboRegisterInfoToMii(const AmiiboRegisterInfo& mii_info) {
-
-    Service::Mii::MiiManager manager;
-    auto mii = manager.BuildDefault(0);
-
-    // TODO: We are ignoring a bunch of data from the amiibo mii
-
-    mii.gender = static_cast<u8>(mii_info.mii_information.gender);
-    mii.favorite_color = static_cast<u8>(mii_info.mii_information.favorite_color);
-    memcpy(mii.name.data(), mii_info.mii_name.data(), 10);
-    mii.height = mii_info.height;
-    mii.build = mii_info.build;
-
-    mii.faceline_type = mii_info.appearance_bits1.face_shape;
-    mii.faceline_color = mii_info.appearance_bits1.skin_color;
-    mii.faceline_wrinkle = mii_info.appearance_bits2.wrinkles;
-    mii.faceline_make = mii_info.appearance_bits2.makeup;
-
-    mii.hair_type = mii_info.hair_style;
-    mii.hair_color = mii_info.appearance_bits3.hair_color;
-    mii.hair_flip = mii_info.appearance_bits3.flip_hair;
-
-    mii.eye_type = static_cast<u8>(mii_info.appearance_bits4.eye_type);
-    mii.eye_color = static_cast<u8>(mii_info.appearance_bits4.eye_color);
-    mii.eye_scale = static_cast<u8>(mii_info.appearance_bits4.eye_scale);
-    mii.eye_aspect = static_cast<u8>(mii_info.appearance_bits4.eye_vertical_stretch);
-    mii.eye_rotate = static_cast<u8>(mii_info.appearance_bits4.eye_rotation);
-    mii.eye_x = static_cast<u8>(mii_info.appearance_bits4.eye_spacing);
-    mii.eye_y = static_cast<u8>(mii_info.appearance_bits4.eye_y_position);
-
-    mii.eyebrow_type = static_cast<u8>(mii_info.appearance_bits5.eyebrow_style);
-    mii.eyebrow_color = static_cast<u8>(mii_info.appearance_bits5.eyebrow_color);
-    mii.eyebrow_scale = static_cast<u8>(mii_info.appearance_bits5.eyebrow_scale);
-    mii.eyebrow_aspect = static_cast<u8>(mii_info.appearance_bits5.eyebrow_yscale);
-    mii.eyebrow_rotate = static_cast<u8>(mii_info.appearance_bits5.eyebrow_rotation);
-    mii.eyebrow_x = static_cast<u8>(mii_info.appearance_bits5.eyebrow_spacing);
-    mii.eyebrow_y = static_cast<u8>(mii_info.appearance_bits5.eyebrow_y_position);
-
-    mii.nose_type = static_cast<u8>(mii_info.appearance_bits6.nose_type);
-    mii.nose_scale = static_cast<u8>(mii_info.appearance_bits6.nose_scale);
-    mii.nose_y = static_cast<u8>(mii_info.appearance_bits6.nose_y_position);
-
-    mii.mouth_type = static_cast<u8>(mii_info.appearance_bits7.mouth_type);
-    mii.mouth_color = static_cast<u8>(mii_info.appearance_bits7.mouth_color);
-    mii.mouth_scale = static_cast<u8>(mii_info.appearance_bits7.mouth_scale);
-    mii.mouth_aspect = static_cast<u8>(mii_info.appearance_bits7.mouth_horizontal_stretch);
-    mii.mouth_y = static_cast<u8>(mii_info.appearance_bits8.mouth_y_position);
-
-    mii.mustache_type = static_cast<u8>(mii_info.appearance_bits8.mustache_type);
-    mii.mustache_scale = static_cast<u8>(mii_info.appearance_bits9.mustache_scale);
-    mii.mustache_y = static_cast<u8>(mii_info.appearance_bits9.mustache_y_position);
-
-    mii.beard_type = static_cast<u8>(mii_info.appearance_bits9.bear_type);
-    mii.beard_color = static_cast<u8>(mii_info.appearance_bits9.facial_hair_color);
-
-    mii.glasses_type = static_cast<u8>(mii_info.appearance_bits10.glasses_type);
-    mii.glasses_color = static_cast<u8>(mii_info.appearance_bits10.glasses_color);
-    mii.glasses_scale = static_cast<u8>(mii_info.appearance_bits10.glasses_scale);
-    mii.glasses_y = static_cast<u8>(mii_info.appearance_bits10.glasses_y_position);
-
-    mii.mole_type = static_cast<u8>(mii_info.appearance_bits11.mole_enabled);
-    mii.mole_scale = static_cast<u8>(mii_info.appearance_bits11.mole_scale);
-    mii.mole_x = static_cast<u8>(mii_info.appearance_bits11.mole_x_position);
-    mii.mole_y = static_cast<u8>(mii_info.appearance_bits11.mole_y_position);
-
-    // TODO: Validate mii data
-
-    return mii;
-}
-
 bool IsAmiiboValid(const EncryptedNTAG215File& ntag_file) {
     const auto& amiibo_data = ntag_file.user_memory;
     LOG_DEBUG(Service_NFP, "uuid_lock=0x{0:x}", ntag_file.static_lock);
@@ -126,9 +56,8 @@ bool IsAmiiboValid(const EncryptedNTAG215File& ntag_file) {
     if (amiibo_data.model_info.constant_value != 0x02) {
         return false;
     }
-    if ((ntag_file.dynamic_lock & 0xFFFFFF) != 0x0F0001) {
-        return false;
-    }
+    // dynamic_lock value apparently is not constant
+    // ntag_file.dynamic_lock == 0x0F0001
     if (ntag_file.CFG0 != 0x04000000U) {
         return false;
     }
@@ -348,16 +277,16 @@ bool LoadKeys(InternalKey& locked_secret, InternalKey& unfixed_info) {
                                        Common::FS::FileType::BinaryFile};
 
     if (!keys_file.IsOpen()) {
-        LOG_ERROR(Core, "No keys detected");
+        LOG_ERROR(Service_NFP, "No keys detected");
         return false;
     }
 
     if (keys_file.Read(unfixed_info) != 1) {
-        LOG_ERROR(Core, "Failed to read unfixed_info");
+        LOG_ERROR(Service_NFP, "Failed to read unfixed_info");
         return false;
     }
     if (keys_file.Read(locked_secret) != 1) {
-        LOG_ERROR(Core, "Failed to read locked-secret");
+        LOG_ERROR(Service_NFP, "Failed to read locked-secret");
         return false;
     }
 
diff --git a/src/core/hle/service/nfp/amiibo_crypto.h b/src/core/hle/service/nfp/amiibo_crypto.h
index bfba5dcb2..9b021a5eb 100644
--- a/src/core/hle/service/nfp/amiibo_crypto.h
+++ b/src/core/hle/service/nfp/amiibo_crypto.h
@@ -55,9 +55,6 @@ struct DerivedKeys {
 };
 static_assert(sizeof(DerivedKeys) == 0x30, "DerivedKeys is an invalid size");
 
-/// Converts mii data from nintendo 3ds format to nintendo switch format
-Service::Mii::MiiInfo AmiiboRegisterInfoToMii(const AmiiboRegisterInfo& register_info);
-
 /// Validates that the amiibo file is not corrupted
 bool IsAmiiboValid(const EncryptedNTAG215File& ntag_file);
 
diff --git a/src/core/hle/service/nfp/amiibo_types.h b/src/core/hle/service/nfp/amiibo_types.h
index 49875cff4..bd0424ffd 100644
--- a/src/core/hle/service/nfp/amiibo_types.h
+++ b/src/core/hle/service/nfp/amiibo_types.h
@@ -5,6 +5,8 @@
 
 #include <array>
 
+#include "core/hle/service/mii/types.h"
+
 namespace Service::NFP {
 enum class ServiceType : u32 {
     User,
@@ -74,13 +76,17 @@ using HashData = std::array<u8, 0x20>;
 using ApplicationArea = std::array<u8, 0xD8>;
 
 struct AmiiboDate {
-    union {
-        u16_be raw{};
-
-        BitField<0, 5, u16> day;
-        BitField<5, 4, u16> month;
-        BitField<9, 7, u16> year;
-    };
+    u16_be raw_date{};
+
+    u16 GetYear() const {
+        return ((raw_date & 0xFE00) >> 9) + 2000;
+    }
+    u8 GetMonth() const {
+        return ((raw_date & 0x01E0) >> 5) - 1;
+    }
+    u8 GetDay() const {
+        return raw_date & 0x001F;
+    }
 };
 static_assert(sizeof(AmiiboDate) == 2, "AmiiboDate is an invalid size");
 
@@ -123,135 +129,20 @@ struct NTAG215Password {
 };
 static_assert(sizeof(NTAG215Password) == 0x8, "NTAG215Password is an invalid size");
 
-// Based on citra HLE::Applets::MiiData and PretendoNetwork.
-// https://github.com/citra-emu/citra/blob/master/src/core/hle/applets/mii_selector.h#L48
-// https://github.com/PretendoNetwork/mii-js/blob/master/mii.js#L299
 #pragma pack(1)
-struct AmiiboRegisterInfo {
-    u32_be mii_id;
-    u64_be system_id;
-    u32_be specialness_and_creation_date;
-    std::array<u8, 0x6> creator_mac;
-    u16_be padding;
-    union {
-        u16 raw;
-
-        BitField<0, 1, u16> gender;
-        BitField<1, 4, u16> birth_month;
-        BitField<5, 5, u16> birth_day;
-        BitField<10, 4, u16> favorite_color;
-        BitField<14, 1, u16> favorite;
-    } mii_information;
-    std::array<char16_t, 0xA> mii_name;
-    u8 height;
-    u8 build;
-    union {
-        u8 raw;
-
-        BitField<0, 1, u8> disable_sharing;
-        BitField<1, 4, u8> face_shape;
-        BitField<5, 3, u8> skin_color;
-    } appearance_bits1;
-    union {
-        u8 raw;
-
-        BitField<0, 4, u8> wrinkles;
-        BitField<4, 4, u8> makeup;
-    } appearance_bits2;
-    u8 hair_style;
-    union {
-        u8 raw;
-
-        BitField<0, 3, u8> hair_color;
-        BitField<3, 1, u8> flip_hair;
-    } appearance_bits3;
-    union {
-        u32 raw;
-
-        BitField<0, 6, u32> eye_type;
-        BitField<6, 3, u32> eye_color;
-        BitField<9, 4, u32> eye_scale;
-        BitField<13, 3, u32> eye_vertical_stretch;
-        BitField<16, 5, u32> eye_rotation;
-        BitField<21, 4, u32> eye_spacing;
-        BitField<25, 5, u32> eye_y_position;
-    } appearance_bits4;
-    union {
-        u32 raw;
-
-        BitField<0, 5, u32> eyebrow_style;
-        BitField<5, 3, u32> eyebrow_color;
-        BitField<8, 4, u32> eyebrow_scale;
-        BitField<12, 3, u32> eyebrow_yscale;
-        BitField<16, 4, u32> eyebrow_rotation;
-        BitField<21, 4, u32> eyebrow_spacing;
-        BitField<25, 5, u32> eyebrow_y_position;
-    } appearance_bits5;
-    union {
-        u16 raw;
-
-        BitField<0, 5, u16> nose_type;
-        BitField<5, 4, u16> nose_scale;
-        BitField<9, 5, u16> nose_y_position;
-    } appearance_bits6;
-    union {
-        u16 raw;
-
-        BitField<0, 6, u16> mouth_type;
-        BitField<6, 3, u16> mouth_color;
-        BitField<9, 4, u16> mouth_scale;
-        BitField<13, 3, u16> mouth_horizontal_stretch;
-    } appearance_bits7;
-    union {
-        u8 raw;
-
-        BitField<0, 5, u8> mouth_y_position;
-        BitField<5, 3, u8> mustache_type;
-    } appearance_bits8;
-    u8 allow_copying;
-    union {
-        u16 raw;
-
-        BitField<0, 3, u16> bear_type;
-        BitField<3, 3, u16> facial_hair_color;
-        BitField<6, 4, u16> mustache_scale;
-        BitField<10, 5, u16> mustache_y_position;
-    } appearance_bits9;
-    union {
-        u16 raw;
-
-        BitField<0, 4, u16> glasses_type;
-        BitField<4, 3, u16> glasses_color;
-        BitField<7, 4, u16> glasses_scale;
-        BitField<11, 5, u16> glasses_y_position;
-    } appearance_bits10;
-    union {
-        u16 raw;
-
-        BitField<0, 1, u16> mole_enabled;
-        BitField<1, 4, u16> mole_scale;
-        BitField<5, 5, u16> mole_x_position;
-        BitField<10, 5, u16> mole_y_position;
-    } appearance_bits11;
-
-    std::array<u16_le, 0xA> author_name;
-    INSERT_PADDING_BYTES(0x4);
-};
-static_assert(sizeof(AmiiboRegisterInfo) == 0x60, "AmiiboRegisterInfo is an invalid size");
-
 struct EncryptedAmiiboFile {
-    u8 constant_value;               // Must be A5
-    u16 write_counter;               // Number of times the amiibo has been written?
-    INSERT_PADDING_BYTES(0x1);       // Unknown 1
-    AmiiboSettings settings;         // Encrypted amiibo settings
-    HashData locked_hash;            // Hash
-    AmiiboModelInfo model_info;      // Encrypted amiibo model info
-    HashData keygen_salt;            // Salt
-    HashData unfixed_hash;           // Hash
-    AmiiboRegisterInfo owner_mii;    // Encrypted Mii data
-    u64_be title_id;                 // Encrypted Game id
-    u16_be applicaton_write_counter; // Encrypted Counter
-    u32_be application_area_id;      // Encrypted Game id
+    u8 constant_value;                     // Must be A5
+    u16 write_counter;                     // Number of times the amiibo has been written?
+    INSERT_PADDING_BYTES(0x1);             // Unknown 1
+    AmiiboSettings settings;               // Encrypted amiibo settings
+    HashData locked_hash;                  // Hash
+    AmiiboModelInfo model_info;            // Encrypted amiibo model info
+    HashData keygen_salt;                  // Salt
+    HashData unfixed_hash;                 // Hash
+    Service::Mii::Ver3StoreData owner_mii; // Encrypted Mii data
+    u64_be title_id;                       // Encrypted Game id
+    u16_be applicaton_write_counter;       // Encrypted Counter
+    u32_be application_area_id;            // Encrypted Game id
     std::array<u8, 0x2> unknown;
     HashData hash;                    // Probably a SHA256-HMAC hash?
     ApplicationArea application_area; // Encrypted Game data
@@ -267,7 +158,7 @@ struct NTAG215File {
     u16 write_counter;         // Number of times the amiibo has been written?
     INSERT_PADDING_BYTES(0x1); // Unknown 1
     AmiiboSettings settings;
-    AmiiboRegisterInfo owner_mii; // Encrypted Mii data
+    Service::Mii::Ver3StoreData owner_mii; // Encrypted Mii data
     u64_be title_id;
     u16_be applicaton_write_counter; // Encrypted Counter
     u32_be application_area_id;
diff --git a/src/core/hle/service/nfp/nfp.cpp b/src/core/hle/service/nfp/nfp.cpp
index 4dba05a6a..20fea87e6 100644
--- a/src/core/hle/service/nfp/nfp.cpp
+++ b/src/core/hle/service/nfp/nfp.cpp
@@ -24,6 +24,7 @@ constexpr Result DeviceNotFound(ErrorModule::NFP, 64);
 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 ApplicationAreaIsNotInitialized(ErrorModule::NFP, 128);
 constexpr Result WrongApplicationAreaId(ErrorModule::NFP, 152);
 constexpr Result ApplicationAreaExist(ErrorModule::NFP, 168);
@@ -57,7 +58,7 @@ IUser::IUser(Module::Interface& nfp_interface_, Core::System& system_)
         {21, &IUser::GetNpadId, "GetNpadId"},
         {22, &IUser::GetApplicationAreaSize, "GetApplicationAreaSize"},
         {23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
-        {24, nullptr, "RecreateApplicationArea"},
+        {24, &IUser::RecreateApplicationArea, "RecreateApplicationArea"},
     };
     RegisterHandlers(functions);
 
@@ -597,6 +598,34 @@ void IUser::AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
     rb.PushCopyObjects(availability_change_event->GetReadableEvent());
 }
 
+void IUser::RecreateApplicationArea(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto access_id{rp.Pop<u32>()};
+    const auto data{ctx.ReadBuffer()};
+    LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}, data_size={}, access_id={}",
+                device_handle, access_id, data.size());
+
+    if (state == State::NonInitialized) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ErrCodes::NfcDisabled);
+        return;
+    }
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        const auto result = nfp_interface.RecreateApplicationArea(access_id, data);
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
+    }
+
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
 Module::Interface::Interface(std::shared_ptr<Module> module_, Core::System& system_,
                              const char* name)
     : ServiceFramework{system_, name}, module{std::move(module_)},
@@ -621,14 +650,14 @@ bool Module::Interface::LoadAmiiboFile(const std::string& filename) {
                                          Common::FS::FileType::BinaryFile};
 
     if (!amiibo_file.IsOpen()) {
-        LOG_ERROR(Core, "Amiibo is already on use");
+        LOG_ERROR(Service_NFP, "Amiibo is already on use");
         return false;
     }
 
     // Workaround for files with missing password data
     std::array<u8, sizeof(EncryptedNTAG215File)> buffer{};
     if (amiibo_file.Read(buffer) < tag_size_without_password) {
-        LOG_ERROR(Core, "Failed to read amiibo file");
+        LOG_ERROR(Service_NFP, "Failed to read amiibo file");
         return false;
     }
     memcpy(&encrypted_tag_data, buffer.data(), sizeof(EncryptedNTAG215File));
@@ -759,12 +788,12 @@ Result Module::Interface::Flush() {
     bool is_character_equal = tmp_encrypted_tag_data.user_memory.model_info.character_id ==
                               tag_data.model_info.character_id;
     if (!is_uuid_equal || !is_character_equal) {
-        LOG_ERROR(Core, "Not the same amiibo");
+        LOG_ERROR(Service_NFP, "Not the same amiibo");
         return ErrCodes::WriteAmiiboFailed;
     }
 
     if (!AmiiboCrypto::EncodeAmiibo(tag_data, encrypted_tag_data)) {
-        LOG_ERROR(Core, "Failed to encode data");
+        LOG_ERROR(Service_NFP, "Failed to encode data");
         return ErrCodes::WriteAmiiboFailed;
     }
 
@@ -830,13 +859,13 @@ Result Module::Interface::GetCommonInfo(CommonInfo& common_info) const {
         return ErrCodes::WrongDeviceState;
     }
 
-    if (is_data_decoded) {
+    if (is_data_decoded && tag_data.settings.settings.amiibo_initialized != 0) {
         const auto& settings = tag_data.settings;
         // TODO: Validate this data
         common_info = {
-            .last_write_year = static_cast<u16>(settings.write_date.year.Value()),
-            .last_write_month = static_cast<u8>(settings.write_date.month.Value()),
-            .last_write_day = static_cast<u8>(settings.write_date.day.Value()),
+            .last_write_year = settings.write_date.GetYear(),
+            .last_write_month = settings.write_date.GetMonth(),
+            .last_write_day = settings.write_date.GetDay(),
             .write_counter = settings.crc_counter,
             .version = 1,
             .application_area_size = sizeof(ApplicationArea),
@@ -877,10 +906,15 @@ Result Module::Interface::GetModelInfo(ModelInfo& model_info) const {
 Result Module::Interface::GetRegisterInfo(RegisterInfo& register_info) const {
     if (device_state != DeviceState::TagMounted) {
         LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return ErrCodes::TagRemoved;
+        }
         return ErrCodes::WrongDeviceState;
     }
 
-    if (is_data_decoded) {
+    Service::Mii::MiiManager manager;
+
+    if (is_data_decoded && tag_data.settings.settings.amiibo_initialized != 0) {
         const auto& settings = tag_data.settings;
 
         // Amiibo name is u16 while the register info is u8. Figure out how to handle this properly
@@ -891,10 +925,10 @@ Result Module::Interface::GetRegisterInfo(RegisterInfo& register_info) const {
 
         // TODO: Validate this data
         register_info = {
-            .mii_char_info = AmiiboCrypto::AmiiboRegisterInfoToMii(tag_data.owner_mii),
-            .first_write_year = static_cast<u16>(settings.init_date.year.Value()),
-            .first_write_month = static_cast<u8>(settings.init_date.month.Value()),
-            .first_write_day = static_cast<u8>(settings.init_date.day.Value()),
+            .mii_char_info = manager.ConvertV3ToCharInfo(tag_data.owner_mii),
+            .first_write_year = settings.init_date.GetYear(),
+            .first_write_month = settings.init_date.GetMonth(),
+            .first_write_day = settings.init_date.GetDay(),
             .amiibo_name = amiibo_name,
             .unknown = {},
         };
@@ -903,7 +937,6 @@ Result Module::Interface::GetRegisterInfo(RegisterInfo& register_info) const {
     }
 
     // Generate a generic answer
-    Service::Mii::MiiManager manager;
     register_info = {
         .mii_char_info = manager.BuildDefault(0),
         .first_write_year = 2022,
@@ -918,6 +951,9 @@ Result Module::Interface::GetRegisterInfo(RegisterInfo& register_info) const {
 Result Module::Interface::OpenApplicationArea(u32 access_id) {
     if (device_state != DeviceState::TagMounted) {
         LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return ErrCodes::TagRemoved;
+        }
         return ErrCodes::WrongDeviceState;
     }
 
@@ -944,6 +980,9 @@ Result Module::Interface::OpenApplicationArea(u32 access_id) {
 Result Module::Interface::GetApplicationArea(ApplicationArea& data) const {
     if (device_state != DeviceState::TagMounted) {
         LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return ErrCodes::TagRemoved;
+        }
         return ErrCodes::WrongDeviceState;
     }
 
@@ -960,6 +999,9 @@ Result Module::Interface::GetApplicationArea(ApplicationArea& data) const {
 Result Module::Interface::SetApplicationArea(const std::vector<u8>& data) {
     if (device_state != DeviceState::TagMounted) {
         LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return ErrCodes::TagRemoved;
+        }
         return ErrCodes::WrongDeviceState;
     }
 
@@ -980,6 +1022,9 @@ Result Module::Interface::SetApplicationArea(const std::vector<u8>& data) {
 Result Module::Interface::CreateApplicationArea(u32 access_id, const std::vector<u8>& data) {
     if (device_state != DeviceState::TagMounted) {
         LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return ErrCodes::TagRemoved;
+        }
         return ErrCodes::WrongDeviceState;
     }
 
@@ -999,6 +1044,26 @@ Result Module::Interface::CreateApplicationArea(u32 access_id, const std::vector
     return ResultSuccess;
 }
 
+Result Module::Interface::RecreateApplicationArea(u32 access_id, const std::vector<u8>& data) {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        if (device_state == DeviceState::TagRemoved) {
+            return ErrCodes::TagRemoved;
+        }
+        return ErrCodes::WrongDeviceState;
+    }
+
+    if (data.size() != sizeof(ApplicationArea)) {
+        LOG_ERROR(Service_NFP, "Wrong data size {}", data.size());
+        return ResultUnknown;
+    }
+
+    std::memcpy(&tag_data.application_area, data.data(), sizeof(ApplicationArea));
+    tag_data.application_area_id = access_id;
+
+    return ResultSuccess;
+}
+
 u64 Module::Interface::GetHandle() const {
     // Generate a handle based of the npad id
     return static_cast<u64>(npad_id);
diff --git a/src/core/hle/service/nfp/nfp.h b/src/core/hle/service/nfp/nfp.h
index 3410dcfb0..6b979daba 100644
--- a/src/core/hle/service/nfp/nfp.h
+++ b/src/core/hle/service/nfp/nfp.h
@@ -55,7 +55,7 @@ struct ModelInfo {
 static_assert(sizeof(ModelInfo) == 0x40, "ModelInfo is an invalid size");
 
 struct RegisterInfo {
-    Service::Mii::MiiInfo mii_char_info;
+    Service::Mii::CharInfo mii_char_info;
     u16 first_write_year;
     u8 first_write_month;
     u8 first_write_day;
@@ -96,6 +96,7 @@ public:
         Result GetApplicationArea(ApplicationArea& data) const;
         Result SetApplicationArea(const std::vector<u8>& data);
         Result CreateApplicationArea(u32 access_id, const std::vector<u8>& data);
+        Result RecreateApplicationArea(u32 access_id, const std::vector<u8>& data);
 
         u64 GetHandle() const;
         DeviceState GetCurrentState() const;
@@ -152,6 +153,7 @@ private:
     void GetNpadId(Kernel::HLERequestContext& ctx);
     void GetApplicationAreaSize(Kernel::HLERequestContext& ctx);
     void AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx);
+    void RecreateApplicationArea(Kernel::HLERequestContext& ctx);
 
     KernelHelpers::ServiceContext service_context;