early-access version 3566

README.md

@@ -1,7 +1,7 @@
 yuzu emulator early access
 =============
 
-This is the source code for early-access 3565.
+This is the source code for early-access 3566.
 
 ## Legal Notice
 

src/core/CMakeLists.txt

@@ -554,21 +554,22 @@ 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/common/amiibo_crypto.cpp
-    hle/service/nfc/mifare_user.h
+    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_interface.cpp
-    hle/service/nfc/nfc_device.h
+    hle/service/nfc/nfc_interface.h
     hle/service/nfc/nfc_result.h
-    hle/service/nfc/nfc_user.cpp
+    hle/service/nfc/nfc_types.h
-    hle/service/nfc/nfc_user.h
-    hle/service/nfp/amiibo_crypto.cpp
-    hle/service/nfp/amiibo_crypto.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 {
+namespace Service::NFC {
-class NfpDevice;
+class NfcDevice;
-} // namespace Service::NFP
+} // 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 &&
+    if (nfp_device->GetCurrentState() != Service::NFC::DeviceState::TagFound &&
-        nfp_device->GetCurrentState() != Service::NFP::DeviceState::TagMounted) {
+        nfp_device->GetCurrentState() != Service::NFC::DeviceState::TagMounted) {
         Cancel();
     }
 
-    if (nfp_device->GetCurrentState() == Service::NFP::DeviceState::TagFound) {
+    if (nfp_device->GetCurrentState() == Service::NFC::DeviceState::TagFound) {
-        nfp_device->Mount(Service::NFP::MountTarget::All);
+        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{};
+        Service::NFP::RegisterInfoPrivate register_info{};
-        std::memcpy(name.data(), amiibo_name.data(), std::min(amiibo_name.size(), name.size() - 1));
+        std::memcpy(register_info.amiibo_name.data(), amiibo_name.data(),
-        nfp_device->SetRegisterInfoPrivate(name);
+                    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 {
+namespace Service::NFC {
-class NfpDevice;
+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/nfc/common/amiibo_crypto.cpp

@@ -0,0 +1,405 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// SPDX-FileCopyrightText: Copyright 2017 socram8888/amiitool
+// SPDX-License-Identifier: MIT
+
+#include <array>
+#include <mbedtls/aes.h>
+#include <mbedtls/hmac_drbg.h>
+
+#include "common/fs/file.h"
+#include "common/fs/fs.h"
+#include "common/fs/path_util.h"
+#include "common/logging/log.h"
+#include "core/hle/service/nfc/common/amiibo_crypto.h"
+
+namespace Service::NFP::AmiiboCrypto {
+
+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);
+    LOG_DEBUG(Service_NFP, "compability_container=0x{0:x}", ntag_file.compability_container);
+    LOG_DEBUG(Service_NFP, "write_count={}", static_cast<u16>(amiibo_data.write_counter));
+
+    LOG_DEBUG(Service_NFP, "character_id=0x{0:x}", amiibo_data.model_info.character_id);
+    LOG_DEBUG(Service_NFP, "character_variant={}", amiibo_data.model_info.character_variant);
+    LOG_DEBUG(Service_NFP, "amiibo_type={}", amiibo_data.model_info.amiibo_type);
+    LOG_DEBUG(Service_NFP, "model_number=0x{0:x}",
+              static_cast<u16>(amiibo_data.model_info.model_number));
+    LOG_DEBUG(Service_NFP, "series={}", amiibo_data.model_info.series);
+    LOG_DEBUG(Service_NFP, "tag_type=0x{0:x}", amiibo_data.model_info.tag_type);
+
+    LOG_DEBUG(Service_NFP, "tag_dynamic_lock=0x{0:x}", ntag_file.dynamic_lock);
+    LOG_DEBUG(Service_NFP, "tag_CFG0=0x{0:x}", ntag_file.CFG0);
+    LOG_DEBUG(Service_NFP, "tag_CFG1=0x{0:x}", ntag_file.CFG1);
+
+    // Validate UUID
+    constexpr u8 CT = 0x88; // As defined in `ISO / IEC 14443 - 3`
+    if ((CT ^ ntag_file.uuid.uid[0] ^ ntag_file.uuid.uid[1] ^ ntag_file.uuid.uid[2]) !=
+        ntag_file.uuid.uid[3]) {
+        return false;
+    }
+    if ((ntag_file.uuid.uid[4] ^ ntag_file.uuid.uid[5] ^ ntag_file.uuid.uid[6] ^
+         ntag_file.uuid.nintendo_id) != ntag_file.uuid.lock_bytes[0]) {
+        return false;
+    }
+
+    // Check against all know constants on an amiibo binary
+    if (ntag_file.static_lock != 0xE00F) {
+        return false;
+    }
+    if (ntag_file.compability_container != 0xEEFF10F1U) {
+        return false;
+    }
+    if (amiibo_data.constant_value != 0xA5) {
+        return false;
+    }
+    if (amiibo_data.model_info.tag_type != NFC::PackedTagType::Type2) {
+        return false;
+    }
+    if ((ntag_file.dynamic_lock & 0xFFFFFF) != 0x0F0001U) {
+        return false;
+    }
+    if (ntag_file.CFG0 != 0x04000000U) {
+        return false;
+    }
+    if (ntag_file.CFG1 != 0x5F) {
+        return false;
+    }
+    return true;
+}
+
+bool IsAmiiboValid(const NTAG215File& ntag_file) {
+    return IsAmiiboValid(EncodedDataToNfcData(ntag_file));
+}
+
+NTAG215File NfcDataToEncodedData(const EncryptedNTAG215File& nfc_data) {
+    NTAG215File encoded_data{};
+
+    encoded_data.uid = nfc_data.uuid.uid;
+    encoded_data.nintendo_id = nfc_data.uuid.nintendo_id;
+    encoded_data.static_lock = nfc_data.static_lock;
+    encoded_data.compability_container = nfc_data.compability_container;
+    encoded_data.hmac_data = nfc_data.user_memory.hmac_data;
+    encoded_data.constant_value = nfc_data.user_memory.constant_value;
+    encoded_data.write_counter = nfc_data.user_memory.write_counter;
+    encoded_data.amiibo_version = nfc_data.user_memory.amiibo_version;
+    encoded_data.settings = nfc_data.user_memory.settings;
+    encoded_data.owner_mii = nfc_data.user_memory.owner_mii;
+    encoded_data.application_id = nfc_data.user_memory.application_id;
+    encoded_data.application_write_counter = nfc_data.user_memory.application_write_counter;
+    encoded_data.application_area_id = nfc_data.user_memory.application_area_id;
+    encoded_data.application_id_byte = nfc_data.user_memory.application_id_byte;
+    encoded_data.unknown = nfc_data.user_memory.unknown;
+    encoded_data.mii_extension = nfc_data.user_memory.mii_extension;
+    encoded_data.unknown2 = nfc_data.user_memory.unknown2;
+    encoded_data.register_info_crc = nfc_data.user_memory.register_info_crc;
+    encoded_data.application_area = nfc_data.user_memory.application_area;
+    encoded_data.hmac_tag = nfc_data.user_memory.hmac_tag;
+    encoded_data.lock_bytes = nfc_data.uuid.lock_bytes;
+    encoded_data.model_info = nfc_data.user_memory.model_info;
+    encoded_data.keygen_salt = nfc_data.user_memory.keygen_salt;
+    encoded_data.dynamic_lock = nfc_data.dynamic_lock;
+    encoded_data.CFG0 = nfc_data.CFG0;
+    encoded_data.CFG1 = nfc_data.CFG1;
+    encoded_data.password = nfc_data.password;
+
+    return encoded_data;
+}
+
+EncryptedNTAG215File EncodedDataToNfcData(const NTAG215File& encoded_data) {
+    EncryptedNTAG215File nfc_data{};
+
+    nfc_data.uuid.uid = encoded_data.uid;
+    nfc_data.uuid.nintendo_id = encoded_data.nintendo_id;
+    nfc_data.uuid.lock_bytes = encoded_data.lock_bytes;
+    nfc_data.static_lock = encoded_data.static_lock;
+    nfc_data.compability_container = encoded_data.compability_container;
+    nfc_data.user_memory.hmac_data = encoded_data.hmac_data;
+    nfc_data.user_memory.constant_value = encoded_data.constant_value;
+    nfc_data.user_memory.write_counter = encoded_data.write_counter;
+    nfc_data.user_memory.amiibo_version = encoded_data.amiibo_version;
+    nfc_data.user_memory.settings = encoded_data.settings;
+    nfc_data.user_memory.owner_mii = encoded_data.owner_mii;
+    nfc_data.user_memory.application_id = encoded_data.application_id;
+    nfc_data.user_memory.application_write_counter = encoded_data.application_write_counter;
+    nfc_data.user_memory.application_area_id = encoded_data.application_area_id;
+    nfc_data.user_memory.application_id_byte = encoded_data.application_id_byte;
+    nfc_data.user_memory.unknown = encoded_data.unknown;
+    nfc_data.user_memory.mii_extension = encoded_data.mii_extension;
+    nfc_data.user_memory.unknown2 = encoded_data.unknown2;
+    nfc_data.user_memory.register_info_crc = encoded_data.register_info_crc;
+    nfc_data.user_memory.application_area = encoded_data.application_area;
+    nfc_data.user_memory.hmac_tag = encoded_data.hmac_tag;
+    nfc_data.user_memory.model_info = encoded_data.model_info;
+    nfc_data.user_memory.keygen_salt = encoded_data.keygen_salt;
+    nfc_data.dynamic_lock = encoded_data.dynamic_lock;
+    nfc_data.CFG0 = encoded_data.CFG0;
+    nfc_data.CFG1 = encoded_data.CFG1;
+    nfc_data.password = encoded_data.password;
+
+    return nfc_data;
+}
+
+u32 GetTagPassword(const TagUuid& uuid) {
+    // Verify that the generated password is correct
+    u32 password = 0xAA ^ (uuid.uid[1] ^ uuid.uid[3]);
+    password &= (0x55 ^ (uuid.uid[2] ^ uuid.uid[4])) << 8;
+    password &= (0xAA ^ (uuid.uid[3] ^ uuid.uid[5])) << 16;
+    password &= (0x55 ^ (uuid.uid[4] ^ uuid.uid[6])) << 24;
+    return password;
+}
+
+HashSeed GetSeed(const NTAG215File& data) {
+    HashSeed seed{
+        .magic = data.write_counter,
+        .padding = {},
+        .uid_1 = data.uid,
+        .nintendo_id_1 = data.nintendo_id,
+        .uid_2 = data.uid,
+        .nintendo_id_2 = data.nintendo_id,
+        .keygen_salt = data.keygen_salt,
+    };
+
+    return seed;
+}
+
+std::vector<u8> GenerateInternalKey(const InternalKey& key, const HashSeed& seed) {
+    const std::size_t seedPart1Len = sizeof(key.magic_bytes) - key.magic_length;
+    const std::size_t string_size = key.type_string.size();
+    std::vector<u8> output(string_size + seedPart1Len);
+
+    // Copy whole type string
+    memccpy(output.data(), key.type_string.data(), '\0', string_size);
+
+    // Append (16 - magic_length) from the input seed
+    memcpy(output.data() + string_size, &seed, seedPart1Len);
+
+    // Append all bytes from magicBytes
+    output.insert(output.end(), key.magic_bytes.begin(),
+                  key.magic_bytes.begin() + key.magic_length);
+
+    output.insert(output.end(), seed.uid_1.begin(), seed.uid_1.end());
+    output.emplace_back(seed.nintendo_id_1);
+    output.insert(output.end(), seed.uid_2.begin(), seed.uid_2.end());
+    output.emplace_back(seed.nintendo_id_2);
+
+    for (std::size_t i = 0; i < sizeof(seed.keygen_salt); i++) {
+        output.emplace_back(static_cast<u8>(seed.keygen_salt[i] ^ key.xor_pad[i]));
+    }
+
+    return output;
+}
+
+void CryptoInit(CryptoCtx& ctx, mbedtls_md_context_t& hmac_ctx, const HmacKey& hmac_key,
+                const std::vector<u8>& seed) {
+    // Initialize context
+    ctx.used = false;
+    ctx.counter = 0;
+    ctx.buffer_size = sizeof(ctx.counter) + seed.size();
+    memcpy(ctx.buffer.data() + sizeof(u16), seed.data(), seed.size());
+
+    // Initialize HMAC context
+    mbedtls_md_init(&hmac_ctx);
+    mbedtls_md_setup(&hmac_ctx, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 1);
+    mbedtls_md_hmac_starts(&hmac_ctx, hmac_key.data(), hmac_key.size());
+}
+
+void CryptoStep(CryptoCtx& ctx, mbedtls_md_context_t& hmac_ctx, DrgbOutput& output) {
+    // If used at least once, reinitialize the HMAC
+    if (ctx.used) {
+        mbedtls_md_hmac_reset(&hmac_ctx);
+    }
+
+    ctx.used = true;
+
+    // Store counter in big endian, and increment it
+    ctx.buffer[0] = static_cast<u8>(ctx.counter >> 8);
+    ctx.buffer[1] = static_cast<u8>(ctx.counter >> 0);
+    ctx.counter++;
+
+    // Do HMAC magic
+    mbedtls_md_hmac_update(&hmac_ctx, reinterpret_cast<const unsigned char*>(ctx.buffer.data()),
+                           ctx.buffer_size);
+    mbedtls_md_hmac_finish(&hmac_ctx, output.data());
+}
+
+DerivedKeys GenerateKey(const InternalKey& key, const NTAG215File& data) {
+    const auto seed = GetSeed(data);
+
+    // Generate internal seed
+    const std::vector<u8> internal_key = GenerateInternalKey(key, seed);
+
+    // Initialize context
+    CryptoCtx ctx{};
+    mbedtls_md_context_t hmac_ctx;
+    CryptoInit(ctx, hmac_ctx, key.hmac_key, internal_key);
+
+    // Generate derived keys
+    DerivedKeys derived_keys{};
+    std::array<DrgbOutput, 2> temp{};
+    CryptoStep(ctx, hmac_ctx, temp[0]);
+    CryptoStep(ctx, hmac_ctx, temp[1]);
+    memcpy(&derived_keys, temp.data(), sizeof(DerivedKeys));
+
+    // Cleanup context
+    mbedtls_md_free(&hmac_ctx);
+
+    return derived_keys;
+}
+
+void Cipher(const DerivedKeys& keys, const NTAG215File& in_data, NTAG215File& out_data) {
+    mbedtls_aes_context aes;
+    std::size_t nc_off = 0;
+    std::array<u8, sizeof(keys.aes_iv)> nonce_counter{};
+    std::array<u8, sizeof(keys.aes_iv)> stream_block{};
+
+    const auto aes_key_size = static_cast<u32>(keys.aes_key.size() * 8);
+    mbedtls_aes_setkey_enc(&aes, keys.aes_key.data(), aes_key_size);
+    memcpy(nonce_counter.data(), keys.aes_iv.data(), sizeof(keys.aes_iv));
+
+    constexpr std::size_t encrypted_data_size = HMAC_TAG_START - SETTINGS_START;
+    mbedtls_aes_crypt_ctr(&aes, encrypted_data_size, &nc_off, nonce_counter.data(),
+                          stream_block.data(),
+                          reinterpret_cast<const unsigned char*>(&in_data.settings),
+                          reinterpret_cast<unsigned char*>(&out_data.settings));
+
+    // Copy the rest of the data directly
+    out_data.uid = in_data.uid;
+    out_data.nintendo_id = in_data.nintendo_id;
+    out_data.lock_bytes = in_data.lock_bytes;
+    out_data.static_lock = in_data.static_lock;
+    out_data.compability_container = in_data.compability_container;
+
+    out_data.constant_value = in_data.constant_value;
+    out_data.write_counter = in_data.write_counter;
+
+    out_data.model_info = in_data.model_info;
+    out_data.keygen_salt = in_data.keygen_salt;
+    out_data.dynamic_lock = in_data.dynamic_lock;
+    out_data.CFG0 = in_data.CFG0;
+    out_data.CFG1 = in_data.CFG1;
+    out_data.password = in_data.password;
+}
+
+bool LoadKeys(InternalKey& locked_secret, InternalKey& unfixed_info) {
+    const auto yuzu_keys_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::KeysDir);
+
+    const Common::FS::IOFile keys_file{yuzu_keys_dir / "key_retail.bin",
+                                       Common::FS::FileAccessMode::Read,
+                                       Common::FS::FileType::BinaryFile};
+
+    if (!keys_file.IsOpen()) {
+        LOG_ERROR(Service_NFP, "Failed to open key file");
+        return false;
+    }
+
+    if (keys_file.Read(unfixed_info) != 1) {
+        LOG_ERROR(Service_NFP, "Failed to read unfixed_info");
+        return false;
+    }
+    if (keys_file.Read(locked_secret) != 1) {
+        LOG_ERROR(Service_NFP, "Failed to read locked-secret");
+        return false;
+    }
+
+    return true;
+}
+
+bool IsKeyAvailable() {
+    const auto yuzu_keys_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::KeysDir);
+    return Common::FS::Exists(yuzu_keys_dir / "key_retail.bin");
+}
+
+bool DecodeAmiibo(const EncryptedNTAG215File& encrypted_tag_data, NTAG215File& tag_data) {
+    InternalKey locked_secret{};
+    InternalKey unfixed_info{};
+
+    if (!LoadKeys(locked_secret, unfixed_info)) {
+        return false;
+    }
+
+    // Generate keys
+    NTAG215File encoded_data = NfcDataToEncodedData(encrypted_tag_data);
+    const auto data_keys = GenerateKey(unfixed_info, encoded_data);
+    const auto tag_keys = GenerateKey(locked_secret, encoded_data);
+
+    // Decrypt
+    Cipher(data_keys, encoded_data, tag_data);
+
+    // Regenerate tag HMAC. Note: order matters, data HMAC depends on tag HMAC!
+    constexpr std::size_t input_length = DYNAMIC_LOCK_START - UUID_START;
+    mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), tag_keys.hmac_key.data(),
+                    sizeof(HmacKey), reinterpret_cast<const unsigned char*>(&tag_data.uid),
+                    input_length, reinterpret_cast<unsigned char*>(&tag_data.hmac_tag));
+
+    // Regenerate data HMAC
+    constexpr std::size_t input_length2 = DYNAMIC_LOCK_START - WRITE_COUNTER_START;
+    mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), data_keys.hmac_key.data(),
+                    sizeof(HmacKey),
+                    reinterpret_cast<const unsigned char*>(&tag_data.write_counter), input_length2,
+                    reinterpret_cast<unsigned char*>(&tag_data.hmac_data));
+
+    if (tag_data.hmac_data != encrypted_tag_data.user_memory.hmac_data) {
+        LOG_ERROR(Service_NFP, "hmac_data doesn't match");
+        return false;
+    }
+
+    if (tag_data.hmac_tag != encrypted_tag_data.user_memory.hmac_tag) {
+        LOG_ERROR(Service_NFP, "hmac_tag doesn't match");
+        return false;
+    }
+
+    return true;
+}
+
+bool EncodeAmiibo(const NTAG215File& tag_data, EncryptedNTAG215File& encrypted_tag_data) {
+    InternalKey locked_secret{};
+    InternalKey unfixed_info{};
+
+    if (!LoadKeys(locked_secret, unfixed_info)) {
+        return false;
+    }
+
+    // Generate keys
+    const auto data_keys = GenerateKey(unfixed_info, tag_data);
+    const auto tag_keys = GenerateKey(locked_secret, tag_data);
+
+    NTAG215File encoded_tag_data{};
+
+    // Generate tag HMAC
+    constexpr std::size_t input_length = DYNAMIC_LOCK_START - UUID_START;
+    constexpr std::size_t input_length2 = HMAC_TAG_START - WRITE_COUNTER_START;
+    mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), tag_keys.hmac_key.data(),
+                    sizeof(HmacKey), reinterpret_cast<const unsigned char*>(&tag_data.uid),
+                    input_length, reinterpret_cast<unsigned char*>(&encoded_tag_data.hmac_tag));
+
+    // Init mbedtls HMAC context
+    mbedtls_md_context_t ctx;
+    mbedtls_md_init(&ctx);
+    mbedtls_md_setup(&ctx, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 1);
+
+    // Generate data HMAC
+    mbedtls_md_hmac_starts(&ctx, data_keys.hmac_key.data(), sizeof(HmacKey));
+    mbedtls_md_hmac_update(&ctx, reinterpret_cast<const unsigned char*>(&tag_data.write_counter),
+                           input_length2); // Data
+    mbedtls_md_hmac_update(&ctx, reinterpret_cast<unsigned char*>(&encoded_tag_data.hmac_tag),
+                           sizeof(HashData)); // Tag HMAC
+    mbedtls_md_hmac_update(&ctx, reinterpret_cast<const unsigned char*>(&tag_data.uid),
+                           input_length);
+    mbedtls_md_hmac_finish(&ctx, reinterpret_cast<unsigned char*>(&encoded_tag_data.hmac_data));
+
+    // HMAC cleanup
+    mbedtls_md_free(&ctx);
+
+    // Encrypt
+    Cipher(data_keys, tag_data, encoded_tag_data);
+
+    // Convert back to hardware
+    encrypted_tag_data = EncodedDataToNfcData(encoded_tag_data);
+
+    return true;
+}
+
+} // namespace Service::NFP::AmiiboCrypto

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

@@ -0,0 +1,106 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+
+#include "core/hle/service/nfp/nfp_types.h"
+
+struct mbedtls_md_context_t;
+
+namespace Service::NFP::AmiiboCrypto {
+// Byte locations in Service::NFP::NTAG215File
+constexpr std::size_t HMAC_DATA_START = 0x8;
+constexpr std::size_t SETTINGS_START = 0x2c;
+constexpr std::size_t WRITE_COUNTER_START = 0x29;
+constexpr std::size_t HMAC_TAG_START = 0x1B4;
+constexpr std::size_t UUID_START = 0x1D4;
+constexpr std::size_t DYNAMIC_LOCK_START = 0x208;
+
+using HmacKey = std::array<u8, 0x10>;
+using DrgbOutput = std::array<u8, 0x20>;
+
+struct HashSeed {
+    u16_be magic;
+    std::array<u8, 0xE> padding;
+    NFC::UniqueSerialNumber uid_1;
+    u8 nintendo_id_1;
+    NFC::UniqueSerialNumber uid_2;
+    u8 nintendo_id_2;
+    std::array<u8, 0x20> keygen_salt;
+};
+static_assert(sizeof(HashSeed) == 0x40, "HashSeed is an invalid size");
+
+struct InternalKey {
+    HmacKey hmac_key;
+    std::array<char, 0xE> type_string;
+    u8 reserved;
+    u8 magic_length;
+    std::array<u8, 0x10> magic_bytes;
+    std::array<u8, 0x20> xor_pad;
+};
+static_assert(sizeof(InternalKey) == 0x50, "InternalKey is an invalid size");
+static_assert(std::is_trivially_copyable_v<InternalKey>, "InternalKey must be trivially copyable.");
+
+struct CryptoCtx {
+    std::array<char, 480> buffer;
+    bool used;
+    std::size_t buffer_size;
+    s16 counter;
+};
+
+struct DerivedKeys {
+    std::array<u8, 0x10> aes_key;
+    std::array<u8, 0x10> aes_iv;
+    std::array<u8, 0x10> hmac_key;
+};
+static_assert(sizeof(DerivedKeys) == 0x30, "DerivedKeys is an invalid size");
+
+/// Validates that the amiibo file is not corrupted
+bool IsAmiiboValid(const EncryptedNTAG215File& ntag_file);
+
+/// Validates that the amiibo file is not corrupted
+bool IsAmiiboValid(const NTAG215File& ntag_file);
+
+/// Converts from encrypted file format to encoded file format
+NTAG215File NfcDataToEncodedData(const EncryptedNTAG215File& nfc_data);
+
+/// Converts from encoded file format to encrypted file format
+EncryptedNTAG215File EncodedDataToNfcData(const NTAG215File& encoded_data);
+
+/// Returns password needed to allow write access to protected memory
+u32 GetTagPassword(const TagUuid& uuid);
+
+// Generates Seed needed for key derivation
+HashSeed GetSeed(const NTAG215File& data);
+
+// Middle step on the generation of derived keys
+std::vector<u8> GenerateInternalKey(const InternalKey& key, const HashSeed& seed);
+
+// Initializes mbedtls context
+void CryptoInit(CryptoCtx& ctx, mbedtls_md_context_t& hmac_ctx, const HmacKey& hmac_key,
+                const std::vector<u8>& seed);
+
+// Feeds data to mbedtls context to generate the derived key
+void CryptoStep(CryptoCtx& ctx, mbedtls_md_context_t& hmac_ctx, DrgbOutput& output);
+
+// Generates the derived key from amiibo data
+DerivedKeys GenerateKey(const InternalKey& key, const NTAG215File& data);
+
+// Encodes or decodes amiibo data
+void Cipher(const DerivedKeys& keys, const NTAG215File& in_data, NTAG215File& out_data);
+
+/// Loads both amiibo keys from key_retail.bin
+bool LoadKeys(InternalKey& locked_secret, InternalKey& unfixed_info);
+
+/// Returns true if key_retail.bin exist
+bool IsKeyAvailable();
+
+/// Decodes encrypted amiibo data returns true if output is valid
+bool DecodeAmiibo(const EncryptedNTAG215File& encrypted_tag_data, NTAG215File& tag_data);
+
+/// Encodes plain amiibo data returns true if output is valid
+bool EncodeAmiibo(const NTAG215File& tag_data, EncryptedNTAG215File& encrypted_tag_data);
+
+} // namespace Service::NFP::AmiiboCrypto

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_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

@@ -6,14 +6,115 @@
 #include "common/logging/log.h"
 #include "common/settings.h"
 #include "core/hle/service/ipc_helpers.h"
-#include "core/hle/service/nfc/mifare_user.h"
 #include "core/hle/service/nfc/nfc.h"
-#include "core/hle/service/nfc/nfc_user.h"
+#include "core/hle/service/nfc/nfc_interface.h"
 #include "core/hle/service/server_manager.h"
 #include "core/hle/service/service.h"
 
 namespace Service::NFC {
 
+class IUser final : public NfcInterface {
+public:
+    explicit IUser(Core::System& system_) : NfcInterface(system_, "NFC::IUser", BackendType::Nfc) {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {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"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class ISystem final : public NfcInterface {
+public:
+    explicit ISystem(Core::System& system_)
+        : NfcInterface{system_, "NFC::ISystem", BackendType::Nfc} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &NfcInterface::Initialize, "InitializeOld"},
+            {1, &NfcInterface::Finalize, "FinalizeOld"},
+            {2, &NfcInterface::GetState, "GetStateOld"},
+            {3, &NfcInterface::IsNfcEnabled, "IsNfcEnabledOld"},
+            {100, nullptr, "SetNfcEnabledOld"},
+            {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, &NfcInterface::ReadMifare, "ReadMifare"},
+            {1001, &NfcInterface::WriteMifare, "WriteMifare"},
+            {1300, &NfcInterface::SendCommandByPassThrough, "SendCommandByPassThrough"},
+            {1301, nullptr, "KeepPassThroughSession"},
+            {1302, nullptr, "ReleasePassThroughSession"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+// 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", BackendType::Mifare} {
+        // clang-format off
+        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::ReadMifare, "Read"},
+            {6, &MFIUser::WriteMifare, "Write"},
+            {7, &MFIUser::GetTagInfo, "GetTagInfo"},
+            {8, &MFIUser::AttachActivateEvent, "GetActivateEventHandle"},
+            {9, &MFIUser::AttachDeactivateEvent, "GetDeactivateEventHandle"},
+            {10, &MFIUser::GetState, "GetState"},
+            {11, &MFIUser::GetDeviceState, "GetDeviceState"},
+            {12, &MFIUser::GetNpadId, "GetNpadId"},
+            {13, &MFIUser::AttachAvailabilityChangeEvent, "GetAvailabilityChangeEventHandle"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
 class IAm final : public ServiceFramework<IAm> {
 public:
     explicit IAm(Core::System& system_) : ServiceFramework{system_, "NFC::IAm"} {
@@ -34,7 +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
 
@@ -42,7 +143,7 @@ public:
     }
 
 private:
-    void CreateAmInterface(HLERequestContext& ctx) {
+    void CreateAmNfcInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFC, "called");
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -56,7 +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
 
@@ -64,7 +165,7 @@ public:
     }
 
 private:
-    void CreateUserInterface(HLERequestContext& ctx) {
+    void CreateUserNfcInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFC, "called");
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -78,7 +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
 
@@ -86,7 +187,7 @@ public:
     }
 
 private:
-    void CreateUserInterface(HLERequestContext& ctx) {
+    void CreateUserNfcInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFC, "called");
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -95,49 +196,12 @@ private:
     }
 };
 
-class ISystem final : public ServiceFramework<ISystem> {
-public:
-    explicit ISystem(Core::System& system_) : ServiceFramework{system_, "ISystem"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, nullptr, "Initialize"},
-            {1, nullptr, "Finalize"},
-            {2, nullptr, "GetStateOld"},
-            {3, nullptr, "IsNfcEnabledOld"},
-            {100, nullptr, "SetNfcEnabledOld"},
-            {400, nullptr, "InitializeSystem"},
-            {401, nullptr, "FinalizeSystem"},
-            {402, nullptr, "GetState"},
-            {403, nullptr, "IsNfcEnabled"},
-            {404, nullptr, "ListDevices"},
-            {405, nullptr, "GetDeviceState"},
-            {406, nullptr, "GetNpadId"},
-            {407, nullptr, "AttachAvailabilityChangeEvent"},
-            {408, nullptr, "StartDetection"},
-            {409, nullptr, "StopDetection"},
-            {410, nullptr, "GetTagInfo"},
-            {411, nullptr, "AttachActivateEvent"},
-            {412, nullptr, "AttachDeactivateEvent"},
-            {500, nullptr, "SetNfcEnabled"},
-            {510, nullptr, "OutputTestWave"},
-            {1000, nullptr, "ReadMifare"},
-            {1001, nullptr, "WriteMifare"},
-            {1300, nullptr, "SendCommandByPassThrough"},
-            {1301, nullptr, "KeepPassThroughSession"},
-            {1302, nullptr, "ReleasePassThroughSession"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-};
-
 class NFC_SYS final : public ServiceFramework<NFC_SYS> {
 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
 
@@ -145,7 +209,7 @@ public:
     }
 
 private:
-    void CreateSystemInterface(HLERequestContext& ctx) {
+    void CreateSystemNfcInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFC, "called");
 
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
@@ -161,6 +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_interface.cpp

@@ -0,0 +1,382 @@
+// 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/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 {
+
+NfcInterface::NfcInterface(Core::System& system_, const char* name, BackendType service_backend)
+    : ServiceFramework{system_, name}, service_context{system_, service_name},
+      backend_type{service_backend} {}
+
+NfcInterface ::~NfcInterface() = default;
+
+void NfcInterface::Initialize(HLERequestContext& ctx) {
+    LOG_INFO(Service_NFC, "called");
+
+    auto manager = GetManager();
+    auto result = manager->Initialize();
+
+    if (result.IsSuccess()) {
+        state = State::Initialized;
+    } else {
+        manager->Finalize();
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0};
+    rb.Push(result);
+}
+
+void NfcInterface::Finalize(HLERequestContext& ctx) {
+    LOG_INFO(Service_NFC, "called");
+
+    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 NfcInterface::GetState(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFC, "called");
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushEnum(state);
+}
+
+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(is_enabled);
+}
+
+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");
+
+    auto result = GetManager()->ListDevices(nfp_devices, max_allowed_devices);
+    result = TranslateResultToServiceError(result);
+
+    if (result.IsError()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
+    }
+
+    ctx.WriteBuffer(nfp_devices);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(static_cast<s32>(nfp_devices.size()));
+}
+
+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);
+
+    const auto device_state = GetManager()->GetDeviceState(device_handle);
+
+    if (device_state > DeviceState::Finalized) {
+        ASSERT_MSG(false, "Invalid device state");
+    }
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushEnum(device_state);
+}
+
+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);
+
+    Core::HID::NpadIdType npad_id{};
+    auto result = GetManager()->GetNpadId(device_handle, npad_id);
+    result = TranslateResultToServiceError(result);
+
+    if (result.IsError()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushEnum(npad_id);
+}
+
+void NfcInterface::AttachAvailabilityChangeEvent(HLERequestContext& ctx) {
+    LOG_INFO(Service_NFC, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(GetManager()->AttachAvailabilityChangeEvent());
+}
+
+void NfcInterface::StartDetection(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto tag_protocol{rp.PopEnum<NfcProtocol>()};
+    LOG_INFO(Service_NFC, "called, device_handle={}, nfp_protocol={}", device_handle, tag_protocol);
+
+    auto result = GetManager()->StartDetection(device_handle, tag_protocol);
+    result = TranslateResultToServiceError(result);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+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);
+
+    auto result = GetManager()->StopDetection(device_handle);
+    result = TranslateResultToServiceError(result);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+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);
+
+    TagInfo tag_info{};
+    auto result =
+        GetManager()->GetTagInfo(device_handle, tag_info, backend_type == BackendType::Mifare);
+    result = TranslateResultToServiceError(result);
+
+    if (result.IsSuccess()) {
+        ctx.WriteBuffer(tag_info);
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(result);
+}
+
+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);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(GetManager()->AttachActivateEvent(device_handle));
+}
+
+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(GetManager()->AttachDeactivateEvent(device_handle));
+}
+
+void NfcInterface::ReadMifare(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<MifareReadBlockParameter>()};
+    std::vector<MifareReadBlockParameter> read_commands(number_of_commands);
+
+    memcpy(read_commands.data(), buffer.data(),
+           number_of_commands * sizeof(MifareReadBlockParameter));
+
+    LOG_INFO(Service_NFC, "(STUBBED) called, device_handle={}, read_commands_size={}",
+             device_handle, number_of_commands);
+
+    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};
+    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 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());
+
+    std::vector<u8> out_data(1);
+    auto result =
+        GetManager()->SendCommandByPassThrough(device_handle, timeout, command_data, out_data);
+    result = TranslateResultToServiceError(result);
+
+    if (result.IsError()) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
+    }
+
+    ctx.WriteBuffer(out_data);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(static_cast<u32>(out_data.size()));
+}
+
+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;
+    }
+    LOG_WARNING(Service_NFC, "Result conversion not handled");
+    return result;
+}
+
+} // namespace Service::NFC

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

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#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 DeviceManager;
+
+class NfcInterface : public ServiceFramework<NfcInterface> {
+public:
+    explicit NfcInterface(Core::System& system_, const char* name, BackendType service_backend);
+    ~NfcInterface();
+
+    void Initialize(HLERequestContext& ctx);
+    void Finalize(HLERequestContext& ctx);
+    void GetState(HLERequestContext& ctx);
+    void IsNfcEnabled(HLERequestContext& ctx);
+    void ListDevices(HLERequestContext& ctx);
+    void GetDeviceState(HLERequestContext& ctx);
+    void GetNpadId(HLERequestContext& ctx);
+    void AttachAvailabilityChangeEvent(HLERequestContext& ctx);
+    void StartDetection(HLERequestContext& ctx);
+    void StopDetection(HLERequestContext& ctx);
+    void GetTagInfo(HLERequestContext& ctx);
+    void AttachActivateEvent(HLERequestContext& ctx);
+    void AttachDeactivateEvent(HLERequestContext& ctx);
+    void ReadMifare(HLERequestContext& ctx);
+    void WriteMifare(HLERequestContext& ctx);
+    void SendCommandByPassThrough(HLERequestContext& ctx);
+
+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;
+
+    BackendType backend_type;
+    State state{State::NonInitialized};
+    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-FileCopyrightText: Copyright 2023 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
+// 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 ResultDeviceNotFound(ErrorModule::NFC, 64);
-constexpr Result InvalidArgument(ErrorModule::NFC, 65);
+constexpr Result ResultInvalidArgument(ErrorModule::NFC, 65);
-constexpr Result WrongDeviceState(ErrorModule::NFC, 73);
+constexpr Result ResultWrongApplicationAreaSize(ErrorModule::NFP, 68);
-constexpr Result NfcDisabled(ErrorModule::NFC, 80);
+constexpr Result ResultWrongDeviceState(ErrorModule::NFC, 73);
-constexpr Result TagRemoved(ErrorModule::NFC, 97);
+constexpr Result ResultUnknown74(ErrorModule::NFC, 74);
-
+constexpr Result ResultUnknown76(ErrorModule::NFC, 76);
-constexpr Result MifareDeviceNotFound(ErrorModule::NFCMifare, 64);
+constexpr Result ResultNfcNotInitialized(ErrorModule::NFC, 77);
-constexpr Result MifareInvalidArgument(ErrorModule::NFCMifare, 65);
+constexpr Result ResultNfcDisabled(ErrorModule::NFC, 80);
-constexpr Result MifareWrongDeviceState(ErrorModule::NFCMifare, 73);
+constexpr Result ResultWriteAmiiboFailed(ErrorModule::NFP, 88);
-constexpr Result MifareNfcDisabled(ErrorModule::NFCMifare, 80);
+constexpr Result ResultTagRemoved(ErrorModule::NFC, 97);
-constexpr Result MifareTagRemoved(ErrorModule::NFCMifare, 97);
+constexpr Result ResultRegistrationIsNotInitialized(ErrorModule::NFP, 120);
-constexpr Result MifareReadError(ErrorModule::NFCMifare, 288);
+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"},
+            {204, &IDebug::ReadBackupData, "ReadBackupData"},
-            {205, nullptr, "WriteBackupData"},
+            {205, &IDebug::WriteBackupData, "WriteBackupData"},
-            {206, nullptr, "WriteNtf"},
+            {206, &IDebug::WriteNtf, "WriteNtf"},
         };
         // clang-format on
 
@@ -152,16 +152,10 @@ private:
     void CreateUserInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFP, "called");
 
-        if (user_interface == nullptr) {
-            user_interface = std::make_shared<IUser>(system);
-        }
-
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IUser>(user_interface);
+        rb.PushIpcInterface<IUser>(system);
     }
-
-    std::shared_ptr<IUser> user_interface;
 };
 
 class ISystemManager final : public ServiceFramework<ISystemManager> {
@@ -180,16 +174,10 @@ private:
     void CreateSystemInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFP, "called");
 
-        if (system_interface == nullptr) {
-            system_interface = std::make_shared<ISystem>(system);
-        }
-
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(ResultSuccess);
-        rb.PushIpcInterface<ISystem>(system_interface);
+        rb.PushIpcInterface<ISystem>(system);
     }
-
-    std::shared_ptr<ISystem> system_interface;
 };
 
 class IDebugManager final : public ServiceFramework<IDebugManager> {
@@ -208,16 +196,10 @@ private:
     void CreateDebugInterface(HLERequestContext& ctx) {
         LOG_DEBUG(Service_NFP, "called");
 
-        if (system_interface == nullptr) {
-            system_interface = std::make_shared<IDebug>(system);
-        }
-
         IPC::ResponseBuilder rb{ctx, 2, 0, 1};
         rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IDebug>(system_interface);
+        rb.PushIpcInterface<IDebug>(system);
     }
-
-    std::shared_ptr<IDebug> system_interface;
 };
 
 void LoopProcess(Core::System& system) {

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 ResultDeviceNotFound(ErrorModule::NFP, 64);
-constexpr Result InvalidArgument(ErrorModule::NFP, 65);
+constexpr Result ResultInvalidArgument(ErrorModule::NFP, 65);
-constexpr Result WrongApplicationAreaSize(ErrorModule::NFP, 68);
+constexpr Result ResultWrongApplicationAreaSize(ErrorModule::NFP, 68);
-constexpr Result WrongDeviceState(ErrorModule::NFP, 73);
+constexpr Result ResultWrongDeviceState(ErrorModule::NFP, 73);
-constexpr Result NfcDisabled(ErrorModule::NFP, 80);
+constexpr Result ResultUnknown74(ErrorModule::NFC, 74);
-constexpr Result WriteAmiiboFailed(ErrorModule::NFP, 88);
+constexpr Result ResultNfcDisabled(ErrorModule::NFP, 80);
-constexpr Result TagRemoved(ErrorModule::NFP, 97);
+constexpr Result ResultWriteAmiiboFailed(ErrorModule::NFP, 88);
-constexpr Result RegistrationIsNotInitialized(ErrorModule::NFP, 120);
+constexpr Result ResultTagRemoved(ErrorModule::NFP, 97);
-constexpr Result ApplicationAreaIsNotInitialized(ErrorModule::NFP, 128);
+constexpr Result ResultRegistrationIsNotInitialized(ErrorModule::NFP, 120);
-constexpr Result CorruptedData(ErrorModule::NFP, 144);
+constexpr Result ResultApplicationAreaIsNotInitialized(ErrorModule::NFP, 128);
-constexpr Result WrongApplicationAreaId(ErrorModule::NFP, 152);
+constexpr Result ResultCorruptedData(ErrorModule::NFP, 144);
-constexpr Result ApplicationAreaExist(ErrorModule::NFP, 168);
+constexpr Result ResultWrongApplicationAreaId(ErrorModule::NFP, 152);
-constexpr Result NotAnAmiibo(ErrorModule::NFP, 178);
+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 {
+// This is nn::nfp::ModelType
-    User,
-    Debug,
-    System,
-};
-
-enum class DeviceState : u32 {
-    Initialized,
-    SearchingForTag,
-    TagFound,
-    TagRemoved,
-    TagMounted,
-    Unavailable,
-    Finalized,
-};
-
 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 {
+// This is nn::nfp::CommonInfo
-    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");
-
 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/core/hle/service/service.h

@@ -142,7 +142,8 @@ template <typename Self>
 class ServiceFramework : public ServiceFrameworkBase {
 protected:
     /// Contains information about a request type which is handled by the service.
-    struct FunctionInfo : FunctionInfoBase {
+    template <typename T>
+    struct FunctionInfoTyped : FunctionInfoBase {
         // TODO(yuriks): This function could be constexpr, but clang is the only compiler that
         // doesn't emit an ICE or a wrong diagnostic because of the static_cast.
 
@@ -155,12 +156,13 @@ protected:
          *     the request
          * @param name_ human-friendly name for the request. Used mostly for logging purposes.
          */
-        FunctionInfo(u32 expected_header_, HandlerFnP<Self> handler_callback_, const char* name_)
+        FunctionInfoTyped(u32 expected_header_, HandlerFnP<T> handler_callback_, const char* name_)
             : FunctionInfoBase{
                   expected_header_,
                   // Type-erase member function pointer by casting it down to the base class.
                   static_cast<HandlerFnP<ServiceFrameworkBase>>(handler_callback_), name_} {}
     };
+    using FunctionInfo = FunctionInfoTyped<Self>;
 
     /**
      * Initializes the handler with no functions installed.
@@ -175,8 +177,8 @@ protected:
         : ServiceFrameworkBase(system_, service_name_, max_sessions_, Invoker) {}
 
     /// Registers handlers in the service.
-    template <std::size_t N>
+    template <typename T = Self, std::size_t N>
-    void RegisterHandlers(const FunctionInfo (&functions)[N]) {
+    void RegisterHandlers(const FunctionInfoTyped<T> (&functions)[N]) {
         RegisterHandlers(functions, N);
     }
 
@@ -184,13 +186,14 @@ protected:
      * Registers handlers in the service. Usually prefer using the other RegisterHandlers
      * overload in order to avoid needing to specify the array size.
      */
-    void RegisterHandlers(const FunctionInfo* functions, std::size_t n) {
+    template <typename T = Self>
+    void RegisterHandlers(const FunctionInfoTyped<T>* functions, std::size_t n) {
         RegisterHandlersBase(functions, n);
     }
 
     /// Registers handlers in the service.
-    template <std::size_t N>
+    template <typename T = Self, std::size_t N>
-    void RegisterHandlersTipc(const FunctionInfo (&functions)[N]) {
+    void RegisterHandlersTipc(const FunctionInfoTyped<T> (&functions)[N]) {
         RegisterHandlersTipc(functions, N);
     }
 
@@ -198,7 +201,8 @@ protected:
      * Registers handlers in the service. Usually prefer using the other RegisterHandlers
      * overload in order to avoid needing to specify the array size.
      */
-    void RegisterHandlersTipc(const FunctionInfo* functions, std::size_t n) {
+    template <typename T = Self>
+    void RegisterHandlersTipc(const FunctionInfoTyped<T>* functions, std::size_t n) {
         RegisterHandlersBaseTipc(functions, n);
     }
 

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 &&
+    if (nfp_device->GetCurrentState() != Service::NFC::DeviceState::TagFound &&
-        nfp_device->GetCurrentState() != Service::NFP::DeviceState::TagMounted) {
+        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 {
+namespace Service::NFC {
-class NfpDevice;
+class NfcDevice;
-} // namespace Service::NFP
+} // 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

@@ -571,8 +571,8 @@ void GMainWindow::RegisterMetaTypes() {
 
     // Cabinet Applet
     qRegisterMetaType<Core::Frontend::CabinetParameters>("Core::Frontend::CabinetParameters");
-    qRegisterMetaType<std::shared_ptr<Service::NFP::NfpDevice>>(
+    qRegisterMetaType<std::shared_ptr<Service::NFC::NfcDevice>>(
-        "std::shared_ptr<Service::NFP::NfpDevice>");
+        "std::shared_ptr<Service::NFC::NfcDevice>");
 
     // Controller Applet
     qRegisterMetaType<Core::Frontend::ControllerParameters>("Core::Frontend::ControllerParameters");
@@ -600,7 +600,7 @@ 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 {
+namespace Service::NFC {
-class NfpDevice;
+class NfcDevice;
-} // namespace Service::NFP
+} // 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);