Merge pull request #7867 from german77/amiibo

nfp: Improve amiibo support

src/core/hid/emulated_controller.cpp

@@ -885,6 +885,12 @@ bool EmulatedController::TestVibration(std::size_t device_index) {
     return SetVibration(device_index, DEFAULT_VIBRATION_VALUE);
 }
 
+bool EmulatedController::SetPollingMode(Common::Input::PollingMode polling_mode) {
+    LOG_INFO(Service_HID, "Set polling mode {}", polling_mode);
+    auto& output_device = output_devices[static_cast<std::size_t>(DeviceIndex::Right)];
+    return output_device->SetPollingMode(polling_mode) == Common::Input::PollingError::None;
+}
+
 void EmulatedController::SetLedPattern() {
     for (auto& device : output_devices) {
         if (!device) {

src/core/hid/emulated_controller.h

@@ -299,16 +299,23 @@ public:
 
     /**
      * Sends a specific vibration to the output device
-     * @return returns true if vibration had no errors
+     * @return true if vibration had no errors
      */
     bool SetVibration(std::size_t device_index, VibrationValue vibration);
 
     /**
      * Sends a small vibration to the output device
-     * @return returns true if SetVibration was successfull
+     * @return true if SetVibration was successfull
      */
     bool TestVibration(std::size_t device_index);
 
+    /**
+     * Sets the desired data to be polled from a controller
+     * @param polling_mode type of input desired buttons, gyro, nfc, ir, etc.
+     * @return true if SetPollingMode was successfull
+     */
+    bool SetPollingMode(Common::Input::PollingMode polling_mode);
+
     /// Returns the led pattern corresponding to this emulated controller
     LedPattern GetLedPattern() const;
 

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

@@ -7,6 +7,9 @@
 
 #include "common/logging/log.h"
 #include "core/core.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/service/nfp/nfp.h"
@@ -14,343 +17,790 @@
 
 namespace Service::NFP {
 namespace ErrCodes {
-constexpr ResultCode ERR_NO_APPLICATION_AREA(ErrorModule::NFP, 152);
+constexpr ResultCode DeviceNotFound(ErrorModule::NFP, 64);
+constexpr ResultCode WrongDeviceState(ErrorModule::NFP, 73);
+constexpr ResultCode ApplicationAreaIsNotInitialized(ErrorModule::NFP, 128);
+constexpr ResultCode ApplicationAreaExist(ErrorModule::NFP, 168);
 } // namespace ErrCodes
 
-Module::Interface::Interface(std::shared_ptr<Module> module_, Core::System& system_,
-                             const char* name)
-    : ServiceFramework{system_, name}, module{std::move(module_)}, service_context{system_,
-                                                                                   "NFP::IUser"} {
-    nfc_tag_load = service_context.CreateEvent("NFP::IUser:NFCTagDetected");
-}
-
-Module::Interface::~Interface() {
-    service_context.CloseEvent(nfc_tag_load);
-}
-
-class IUser final : public ServiceFramework<IUser> {
-public:
-    explicit IUser(Module::Interface& nfp_interface_, Core::System& system_,
-                   KernelHelpers::ServiceContext& service_context_)
-        : ServiceFramework{system_, "NFP::IUser"}, nfp_interface{nfp_interface_},
-          service_context{service_context_} {
-        static const FunctionInfo functions[] = {
-            {0, &IUser::Initialize, "Initialize"},
-            {1, &IUser::Finalize, "Finalize"},
-            {2, &IUser::ListDevices, "ListDevices"},
-            {3, &IUser::StartDetection, "StartDetection"},
-            {4, &IUser::StopDetection, "StopDetection"},
-            {5, &IUser::Mount, "Mount"},
-            {6, &IUser::Unmount, "Unmount"},
-            {7, &IUser::OpenApplicationArea, "OpenApplicationArea"},
-            {8, &IUser::GetApplicationArea, "GetApplicationArea"},
-            {9, nullptr, "SetApplicationArea"},
-            {10, nullptr, "Flush"},
-            {11, nullptr, "Restore"},
-            {12, nullptr, "CreateApplicationArea"},
-            {13, &IUser::GetTagInfo, "GetTagInfo"},
-            {14, &IUser::GetRegisterInfo, "GetRegisterInfo"},
-            {15, &IUser::GetCommonInfo, "GetCommonInfo"},
-            {16, &IUser::GetModelInfo, "GetModelInfo"},
-            {17, &IUser::AttachActivateEvent, "AttachActivateEvent"},
-            {18, &IUser::AttachDeactivateEvent, "AttachDeactivateEvent"},
-            {19, &IUser::GetState, "GetState"},
-            {20, &IUser::GetDeviceState, "GetDeviceState"},
-            {21, &IUser::GetNpadId, "GetNpadId"},
-            {22, &IUser::GetApplicationAreaSize, "GetApplicationAreaSize"},
-            {23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
-            {24, nullptr, "RecreateApplicationArea"},
-        };
-        RegisterHandlers(functions);
+constexpr u32 ApplicationAreaSize = 0xD8;
+
+IUser::IUser(Module::Interface& nfp_interface_, Core::System& system_)
+    : ServiceFramework{system_, "NFP::IUser"}, service_context{system_, service_name},
+      nfp_interface{nfp_interface_} {
+    static const FunctionInfo functions[] = {
+        {0, &IUser::Initialize, "Initialize"},
+        {1, &IUser::Finalize, "Finalize"},
+        {2, &IUser::ListDevices, "ListDevices"},
+        {3, &IUser::StartDetection, "StartDetection"},
+        {4, &IUser::StopDetection, "StopDetection"},
+        {5, &IUser::Mount, "Mount"},
+        {6, &IUser::Unmount, "Unmount"},
+        {7, &IUser::OpenApplicationArea, "OpenApplicationArea"},
+        {8, &IUser::GetApplicationArea, "GetApplicationArea"},
+        {9, &IUser::SetApplicationArea, "SetApplicationArea"},
+        {10, nullptr, "Flush"},
+        {11, nullptr, "Restore"},
+        {12, &IUser::CreateApplicationArea, "CreateApplicationArea"},
+        {13, &IUser::GetTagInfo, "GetTagInfo"},
+        {14, &IUser::GetRegisterInfo, "GetRegisterInfo"},
+        {15, &IUser::GetCommonInfo, "GetCommonInfo"},
+        {16, &IUser::GetModelInfo, "GetModelInfo"},
+        {17, &IUser::AttachActivateEvent, "AttachActivateEvent"},
+        {18, &IUser::AttachDeactivateEvent, "AttachDeactivateEvent"},
+        {19, &IUser::GetState, "GetState"},
+        {20, &IUser::GetDeviceState, "GetDeviceState"},
+        {21, &IUser::GetNpadId, "GetNpadId"},
+        {22, &IUser::GetApplicationAreaSize, "GetApplicationAreaSize"},
+        {23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
+        {24, nullptr, "RecreateApplicationArea"},
+    };
+    RegisterHandlers(functions);
 
-        deactivate_event = service_context.CreateEvent("NFP::IUser:DeactivateEvent");
-        availability_change_event =
-            service_context.CreateEvent("NFP::IUser:AvailabilityChangeEvent");
-    }
+    availability_change_event = service_context.CreateEvent("IUser:AvailabilityChangeEvent");
+}
 
-    ~IUser() override {
-        service_context.CloseEvent(deactivate_event);
-        service_context.CloseEvent(availability_change_event);
-    }
+void IUser::Initialize(Kernel::HLERequestContext& ctx) {
+    LOG_INFO(Service_NFC, "called");
 
-private:
-    struct TagInfo {
-        std::array<u8, 10> uuid;
-        u8 uuid_length; // TODO(ogniK): Figure out if this is actual the uuid length or does it
-                        // mean something else
-        std::array<u8, 0x15> padding_1;
-        u32_le protocol;
-        u32_le tag_type;
-        std::array<u8, 0x2c> padding_2;
-    };
-    static_assert(sizeof(TagInfo) == 0x54, "TagInfo is an invalid size");
+    state = State::Initialized;
 
-    enum class State : u32 {
-        NonInitialized = 0,
-        Initialized = 1,
-    };
+    // TODO(german77): Loop through all interfaces
+    nfp_interface.Initialize();
 
-    enum class DeviceState : u32 {
-        Initialized = 0,
-        SearchingForTag = 1,
-        TagFound = 2,
-        TagRemoved = 3,
-        TagNearby = 4,
-        Unknown5 = 5,
-        Finalized = 6
-    };
+    IPC::ResponseBuilder rb{ctx, 2, 0};
+    rb.Push(ResultSuccess);
+}
 
-    struct CommonInfo {
-        u16_be last_write_year;
-        u8 last_write_month;
-        u8 last_write_day;
-        u16_be write_counter;
-        u16_be version;
-        u32_be application_area_size;
-        INSERT_PADDING_BYTES(0x34);
-    };
-    static_assert(sizeof(CommonInfo) == 0x40, "CommonInfo is an invalid size");
+void IUser::Finalize(Kernel::HLERequestContext& ctx) {
+    LOG_INFO(Service_NFP, "called");
 
-    void Initialize(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFC, "called");
+    state = State::NonInitialized;
 
-        IPC::ResponseBuilder rb{ctx, 2, 0};
-        rb.Push(ResultSuccess);
+    // TODO(german77): Loop through all interfaces
+    nfp_interface.Finalize();
 
-        state = State::Initialized;
-    }
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
 
-    void GetState(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFC, "called");
+void IUser::ListDevices(Kernel::HLERequestContext& ctx) {
+    LOG_INFO(Service_NFP, "called");
 
-        IPC::ResponseBuilder rb{ctx, 3, 0};
-        rb.Push(ResultSuccess);
-        rb.PushRaw<u32>(static_cast<u32>(state));
+    std::vector<u64> devices;
+
+    // TODO(german77): Loop through all interfaces
+    devices.push_back(nfp_interface.GetHandle());
+
+    ctx.WriteBuffer(devices);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(static_cast<s32>(devices.size()));
+}
+
+void IUser::StartDetection(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto nfp_protocol{rp.Pop<s32>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}, nfp_protocol={}", device_handle, nfp_protocol);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        const auto result = nfp_interface.StartDetection(nfp_protocol);
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
     }
 
-    void ListDevices(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u32 array_size = rp.Pop<u32>();
-        LOG_DEBUG(Service_NFP, "called, array_size={}", array_size);
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-        ctx.WriteBuffer(device_handle);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
 
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(1);
+void IUser::StopDetection(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        const auto result = nfp_interface.StopDetection();
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
     }
 
-    void GetNpadId(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 dev_handle = rp.Pop<u64>();
-        LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(npad_id);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::Mount(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto model_type{rp.PopEnum<ModelType>()};
+    const auto mount_target{rp.PopEnum<MountTarget>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}, model_type={}, mount_target={}", device_handle,
+             model_type, mount_target);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        const auto result = nfp_interface.Mount();
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
     }
 
-    void AttachActivateEvent(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 dev_handle = rp.Pop<u64>();
-        LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(nfp_interface.GetNFCEvent());
-        has_attached_handle = true;
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::Unmount(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        const auto result = nfp_interface.Unmount();
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result);
+        return;
     }
 
-    void AttachDeactivateEvent(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 dev_handle = rp.Pop<u64>();
-        LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(deactivate_event->GetReadableEvent());
-    }
-
-    void StopDetection(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        switch (device_state) {
-        case DeviceState::TagFound:
-        case DeviceState::TagNearby:
-            deactivate_event->GetWritableEvent().Signal();
-            device_state = DeviceState::Initialized;
-            break;
-        case DeviceState::SearchingForTag:
-        case DeviceState::TagRemoved:
-            device_state = DeviceState::Initialized;
-            break;
-        default:
-            break;
-        }
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::OpenApplicationArea(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto access_id{rp.Pop<u32>()};
+    LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}, access_id={}", device_handle,
+                access_id);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        const auto result = nfp_interface.OpenApplicationArea(access_id);
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
+        rb.Push(result);
+        return;
     }
 
-    void GetDeviceState(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::GetApplicationArea(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
 
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        std::vector<u8> data{};
+        const auto result = nfp_interface.GetApplicationArea(data);
+        ctx.WriteBuffer(data);
         IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(static_cast<u32>(device_state));
+        rb.Push(result);
+        rb.Push(static_cast<u32>(data.size()));
+        return;
     }
 
-    void StartDetection(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-        if (device_state == DeviceState::Initialized || device_state == DeviceState::TagRemoved) {
-            device_state = DeviceState::SearchingForTag;
-        }
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::SetApplicationArea(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto data{ctx.ReadBuffer()};
+    LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}, data_size={}", device_handle,
+                data.size());
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        const auto result = nfp_interface.SetApplicationArea(data);
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
+        rb.Push(result);
+        return;
     }
 
-    void GetTagInfo(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::CreateApplicationArea(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    const auto access_id{rp.Pop<u32>()};
+    const auto data{ctx.ReadBuffer()};
+    LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}, data_size={}, access_id={}",
+                device_handle, access_id, data.size());
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        const auto result = nfp_interface.CreateApplicationArea(access_id, data);
         IPC::ResponseBuilder rb{ctx, 2};
-        const auto& amiibo = nfp_interface.GetAmiiboBuffer();
-        const TagInfo tag_info{
-            .uuid = amiibo.uuid,
-            .uuid_length = static_cast<u8>(amiibo.uuid.size()),
-            .padding_1 = {},
-            .protocol = 1, // TODO(ogniK): Figure out actual values
-            .tag_type = 2,
-            .padding_2 = {},
-        };
-        ctx.WriteBuffer(tag_info);
-        rb.Push(ResultSuccess);
+        rb.Push(result);
+        return;
     }
 
-    void Mount(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::GetTagInfo(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
 
-        device_state = DeviceState::TagNearby;
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        TagInfo tag_info{};
+        const auto result = nfp_interface.GetTagInfo(tag_info);
+        ctx.WriteBuffer(tag_info);
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
+        rb.Push(result);
+        return;
     }
 
-    void GetModelInfo(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::GetRegisterInfo(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        RegisterInfo register_info{};
+        const auto result = nfp_interface.GetRegisterInfo(register_info);
+        ctx.WriteBuffer(register_info);
         IPC::ResponseBuilder rb{ctx, 2};
-        const auto& amiibo = nfp_interface.GetAmiiboBuffer();
-        ctx.WriteBuffer(amiibo.model_info);
-        rb.Push(ResultSuccess);
+        rb.Push(result);
+        return;
     }
 
-    void Unmount(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-        device_state = DeviceState::TagFound;
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
 
+void IUser::GetCommonInfo(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        CommonInfo common_info{};
+        const auto result = nfp_interface.GetCommonInfo(common_info);
+        ctx.WriteBuffer(common_info);
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
+        rb.Push(result);
+        return;
     }
 
-    void Finalize(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
 
-        device_state = DeviceState::Finalized;
+void IUser::GetModelInfo(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
 
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        ModelInfo model_info{};
+        const auto result = nfp_interface.GetModelInfo(model_info);
+        ctx.WriteBuffer(model_info);
         IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
+        rb.Push(result);
+        return;
     }
 
-    void AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
 
+void IUser::AttachActivateEvent(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
         IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(ResultSuccess);
-        rb.PushCopyObjects(availability_change_event->GetReadableEvent());
+        rb.PushCopyObjects(nfp_interface.GetActivateEvent());
+        return;
     }
 
-    void GetRegisterInfo(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-        // TODO(ogniK): Pull Mii and owner data from amiibo
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
 
-        IPC::ResponseBuilder rb{ctx, 2};
+void IUser::AttachDeactivateEvent(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        IPC::ResponseBuilder rb{ctx, 2, 1};
         rb.Push(ResultSuccess);
+        rb.PushCopyObjects(nfp_interface.GetDeactivateEvent());
+        return;
     }
 
-    void GetCommonInfo(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-        // TODO(ogniK): Pull common information from amiibo
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
 
-        CommonInfo common_info{};
-        common_info.application_area_size = 0;
-        ctx.WriteBuffer(common_info);
+void IUser::GetState(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFC, "called");
 
-        IPC::ResponseBuilder rb{ctx, 2};
+    IPC::ResponseBuilder rb{ctx, 3, 0};
+    rb.Push(ResultSuccess);
+    rb.PushEnum(state);
+}
+
+void IUser::GetDeviceState(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
+        IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(ResultSuccess);
+        rb.PushEnum(nfp_interface.GetCurrentState());
+        return;
     }
 
-    void OpenApplicationArea(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ErrCodes::ERR_NO_APPLICATION_AREA);
-    }
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
 
-    void GetApplicationAreaSize(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
-        // We don't need to worry about this since we can just open the file
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::GetNpadId(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
+
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(ResultSuccess);
-        rb.PushRaw<u32>(0); // This is from the GetCommonInfo stub
+        rb.PushEnum(nfp_interface.GetNpadId());
+        return;
     }
 
-    void GetApplicationArea(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
 
-        // TODO(ogniK): Pull application area from amiibo
+void IUser::GetApplicationAreaSize(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto device_handle{rp.Pop<u64>()};
+    LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
 
+    // TODO(german77): Loop through all interfaces
+    if (device_handle == nfp_interface.GetHandle()) {
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(ResultSuccess);
-        rb.PushRaw<u32>(0); // This is from the GetCommonInfo stub
+        rb.Push(ApplicationAreaSize);
+        return;
     }
 
-    Module::Interface& nfp_interface;
-    KernelHelpers::ServiceContext& service_context;
+    LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::DeviceNotFound);
+}
+
+void IUser::AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "(STUBBED) called");
 
-    bool has_attached_handle{};
-    const u64 device_handle{0}; // Npad device 1
-    const u32 npad_id{0};       // Player 1 controller
-    State state{State::NonInitialized};
-    DeviceState device_state{DeviceState::Initialized};
-    Kernel::KEvent* deactivate_event;
-    Kernel::KEvent* availability_change_event;
-};
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(availability_change_event->GetReadableEvent());
+}
+
+Module::Interface::Interface(std::shared_ptr<Module> module_, Core::System& system_,
+                             const char* name)
+    : ServiceFramework{system_, name}, module{std::move(module_)},
+      npad_id{Core::HID::NpadIdType::Player1}, service_context{system_, service_name} {
+    activate_event = service_context.CreateEvent("IUser:NFPActivateEvent");
+    deactivate_event = service_context.CreateEvent("IUser:NFPDeactivateEvent");
+}
+
+Module::Interface::~Interface() = default;
 
 void Module::Interface::CreateUserInterface(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_NFP, "called");
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IUser>(*this, system, service_context);
+    rb.PushIpcInterface<IUser>(*this, system);
 }
 
 bool Module::Interface::LoadAmiibo(const std::vector<u8>& buffer) {
-    if (buffer.size() < sizeof(AmiiboFile)) {
+    if (device_state != DeviceState::SearchingForTag) {
+        LOG_ERROR(Service_NFP, "Game is not looking for amiibos, current state {}", device_state);
+        return false;
+    }
+
+    constexpr auto tag_size = sizeof(NTAG215File);
+    constexpr auto tag_size_without_password = sizeof(NTAG215File) - sizeof(NTAG215Password);
+
+    std::vector<u8> amiibo_buffer = buffer;
+
+    if (amiibo_buffer.size() < tag_size_without_password) {
+        LOG_ERROR(Service_NFP, "Wrong file size {}", buffer.size());
+        return false;
+    }
+
+    // Ensure it has the correct size
+    if (amiibo_buffer.size() != tag_size) {
+        amiibo_buffer.resize(tag_size, 0);
+    }
+
+    LOG_INFO(Service_NFP, "Amiibo detected");
+    std::memcpy(&tag_data, buffer.data(), tag_size);
+
+    if (!IsAmiiboValid()) {
         return false;
     }
 
-    std::memcpy(&amiibo, buffer.data(), sizeof(amiibo));
-    nfc_tag_load->GetWritableEvent().Signal();
+    // This value can't be dumped from a tag. Generate it
+    tag_data.password.PWD = GetTagPassword(tag_data.uuid);
+
+    device_state = DeviceState::TagFound;
+    activate_event->GetWritableEvent().Signal();
     return true;
 }
 
-Kernel::KReadableEvent& Module::Interface::GetNFCEvent() {
-    return nfc_tag_load->GetReadableEvent();
+void Module::Interface::CloseAmiibo() {
+    LOG_INFO(Service_NFP, "Remove amiibo");
+    device_state = DeviceState::TagRemoved;
+    is_application_area_initialized = false;
+    application_area_id = 0;
+    application_area_data.clear();
+    deactivate_event->GetWritableEvent().Signal();
+}
+
+bool Module::Interface::IsAmiiboValid() const {
+    const auto& amiibo_data = tag_data.user_memory;
+    LOG_DEBUG(Service_NFP, "uuid_lock=0x{0:x}", tag_data.lock_bytes);
+    LOG_DEBUG(Service_NFP, "compability_container=0x{0:x}", tag_data.compability_container);
+    LOG_DEBUG(Service_NFP, "crypto_init=0x{0:x}", amiibo_data.crypto_init);
+    LOG_DEBUG(Service_NFP, "write_count={}", amiibo_data.write_count);
+
+    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}", amiibo_data.model_info.model_number);
+    LOG_DEBUG(Service_NFP, "series={}", amiibo_data.model_info.series);
+    LOG_DEBUG(Service_NFP, "fixed_value=0x{0:x}", amiibo_data.model_info.fixed);
+
+    LOG_DEBUG(Service_NFP, "tag_dynamic_lock=0x{0:x}", tag_data.dynamic_lock);
+    LOG_DEBUG(Service_NFP, "tag_CFG0=0x{0:x}", tag_data.CFG0);
+    LOG_DEBUG(Service_NFP, "tag_CFG1=0x{0:x}", tag_data.CFG1);
+
+    // Check against all know constants on an amiibo binary
+    if (tag_data.lock_bytes != 0xE00F) {
+        return false;
+    }
+    if (tag_data.compability_container != 0xEEFF10F1U) {
+        return false;
+    }
+    if ((amiibo_data.crypto_init & 0xFF) != 0xA5) {
+        return false;
+    }
+    if (amiibo_data.model_info.fixed != 0x02) {
+        return false;
+    }
+    if ((tag_data.dynamic_lock & 0xFFFFFF) != 0x0F0001) {
+        return false;
+    }
+    if (tag_data.CFG0 != 0x04000000U) {
+        return false;
+    }
+    if (tag_data.CFG1 != 0x5F) {
+        return false;
+    }
+    return true;
+}
+
+Kernel::KReadableEvent& Module::Interface::GetActivateEvent() const {
+    return activate_event->GetReadableEvent();
+}
+
+Kernel::KReadableEvent& Module::Interface::GetDeactivateEvent() const {
+    return deactivate_event->GetReadableEvent();
+}
+
+void Module::Interface::Initialize() {
+    device_state = DeviceState::Initialized;
+}
+
+void Module::Interface::Finalize() {
+    device_state = DeviceState::Unaviable;
+    is_application_area_initialized = false;
+    application_area_id = 0;
+    application_area_data.clear();
+}
+
+ResultCode Module::Interface::StartDetection(s32 protocol_) {
+    auto npad_device = system.HIDCore().GetEmulatedController(npad_id);
+
+    // TODO(german77): Add callback for when nfc data is available
+
+    if (device_state == DeviceState::Initialized || device_state == DeviceState::TagRemoved) {
+        npad_device->SetPollingMode(Common::Input::PollingMode::NFC);
+        device_state = DeviceState::SearchingForTag;
+        protocol = protocol_;
+        return ResultSuccess;
+    }
+
+    LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+    return ErrCodes::WrongDeviceState;
+}
+
+ResultCode Module::Interface::StopDetection() {
+    auto npad_device = system.HIDCore().GetEmulatedController(npad_id);
+    npad_device->SetPollingMode(Common::Input::PollingMode::Active);
+
+    if (device_state == DeviceState::TagFound || device_state == DeviceState::TagMounted) {
+        CloseAmiibo();
+        return ResultSuccess;
+    }
+    if (device_state == DeviceState::SearchingForTag || device_state == DeviceState::TagRemoved) {
+        device_state = DeviceState::Initialized;
+        return ResultSuccess;
+    }
+
+    LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+    return ErrCodes::WrongDeviceState;
+}
+
+ResultCode Module::Interface::Mount() {
+    if (device_state == DeviceState::TagFound) {
+        device_state = DeviceState::TagMounted;
+        return ResultSuccess;
+    }
+
+    LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+    return ErrCodes::WrongDeviceState;
+}
+
+ResultCode Module::Interface::Unmount() {
+    if (device_state == DeviceState::TagMounted) {
+        is_application_area_initialized = false;
+        application_area_id = 0;
+        application_area_data.clear();
+        device_state = DeviceState::TagFound;
+        return ResultSuccess;
+    }
+
+    LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+    return ErrCodes::WrongDeviceState;
+}
+
+ResultCode Module::Interface::GetTagInfo(TagInfo& tag_info) const {
+    if (device_state == DeviceState::TagFound || device_state == DeviceState::TagMounted) {
+        tag_info = {
+            .uuid = tag_data.uuid,
+            .uuid_length = static_cast<u8>(tag_data.uuid.size()),
+            .protocol = protocol,
+            .tag_type = static_cast<u32>(tag_data.user_memory.model_info.amiibo_type),
+        };
+        return ResultSuccess;
+    }
+
+    LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+    return ErrCodes::WrongDeviceState;
+}
+
+ResultCode Module::Interface::GetCommonInfo(CommonInfo& common_info) const {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        return ErrCodes::WrongDeviceState;
+    }
+
+    // Read this data from the amiibo save file
+    common_info = {
+        .last_write_year = 2022,
+        .last_write_month = 2,
+        .last_write_day = 7,
+        .write_counter = tag_data.user_memory.write_count,
+        .version = 1,
+        .application_area_size = ApplicationAreaSize,
+    };
+    return ResultSuccess;
+}
+
+ResultCode Module::Interface::GetModelInfo(ModelInfo& model_info) const {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        return ErrCodes::WrongDeviceState;
+    }
+
+    model_info = tag_data.user_memory.model_info;
+    return ResultSuccess;
+}
+
+ResultCode Module::Interface::GetRegisterInfo(RegisterInfo& register_info) const {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        return ErrCodes::WrongDeviceState;
+    }
+
+    Service::Mii::MiiManager manager;
+
+    // Read this data from the amiibo save file
+    register_info = {
+        .mii_char_info = manager.BuildDefault(0),
+        .first_write_year = 2022,
+        .first_write_month = 2,
+        .first_write_day = 7,
+        .amiibo_name = {'Y', 'u', 'z', 'u', 'A', 'm', 'i', 'i', 'b', 'o', 0},
+        .unknown = {},
+    };
+    return ResultSuccess;
+}
+
+ResultCode Module::Interface::OpenApplicationArea(u32 access_id) {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        return ErrCodes::WrongDeviceState;
+    }
+    if (AmiiboApplicationDataExist(access_id)) {
+        application_area_data = LoadAmiiboApplicationData(access_id);
+        application_area_id = access_id;
+        is_application_area_initialized = true;
+    }
+    if (!is_application_area_initialized) {
+        LOG_WARNING(Service_NFP, "Application area is not initialized");
+        return ErrCodes::ApplicationAreaIsNotInitialized;
+    }
+    return ResultSuccess;
+}
+
+ResultCode Module::Interface::GetApplicationArea(std::vector<u8>& data) const {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        return ErrCodes::WrongDeviceState;
+    }
+    if (!is_application_area_initialized) {
+        LOG_ERROR(Service_NFP, "Application area is not initialized");
+        return ErrCodes::ApplicationAreaIsNotInitialized;
+    }
+
+    data = application_area_data;
+
+    return ResultSuccess;
+}
+
+ResultCode Module::Interface::SetApplicationArea(const std::vector<u8>& data) {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        return ErrCodes::WrongDeviceState;
+    }
+    if (!is_application_area_initialized) {
+        LOG_ERROR(Service_NFP, "Application area is not initialized");
+        return ErrCodes::ApplicationAreaIsNotInitialized;
+    }
+    application_area_data = data;
+    SaveAmiiboApplicationData(application_area_id, application_area_data);
+    return ResultSuccess;
+}
+
+ResultCode Module::Interface::CreateApplicationArea(u32 access_id, const std::vector<u8>& data) {
+    if (device_state != DeviceState::TagMounted) {
+        LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
+        return ErrCodes::WrongDeviceState;
+    }
+    if (AmiiboApplicationDataExist(access_id)) {
+        LOG_ERROR(Service_NFP, "Application area already exist");
+        return ErrCodes::ApplicationAreaExist;
+    }
+    application_area_data = data;
+    application_area_id = access_id;
+    SaveAmiiboApplicationData(application_area_id, application_area_data);
+    return ResultSuccess;
+}
+
+bool Module::Interface::AmiiboApplicationDataExist(u32 access_id) const {
+    // TODO(german77): Check if file exist
+    return false;
+}
+
+std::vector<u8> Module::Interface::LoadAmiiboApplicationData(u32 access_id) const {
+    // TODO(german77): Read file
+    std::vector<u8> data(ApplicationAreaSize);
+    return data;
+}
+
+void Module::Interface::SaveAmiiboApplicationData(u32 access_id,
+                                                  const std::vector<u8>& data) const {
+    // TODO(german77): Save file
+}
+
+u64 Module::Interface::GetHandle() const {
+    // Generate a handle based of the npad id
+    return static_cast<u64>(npad_id);
+}
+
+DeviceState Module::Interface::GetCurrentState() const {
+    return device_state;
+}
+
+Core::HID::NpadIdType Module::Interface::GetNpadId() const {
+    return npad_id;
 }
 
-const Module::Interface::AmiiboFile& Module::Interface::GetAmiiboBuffer() const {
-    return amiibo;
+u32 Module::Interface::GetTagPassword(const TagUuid& uuid) const {
+    // Verifiy that the generated password is correct
+    u32 password = 0xAA ^ (uuid[1] ^ uuid[3]);
+    password &= (0x55 ^ (uuid[2] ^ uuid[4])) << 8;
+    password &= (0xAA ^ (uuid[3] ^ uuid[5])) << 16;
+    password &= (0x55 ^ (uuid[4] ^ uuid[6])) << 24;
+    return password;
 }
 
 void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {

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

@@ -7,15 +7,132 @@
 #include <array>
 #include <vector>
 
+#include "common/common_funcs.h"
 #include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/mii/mii_manager.h"
 #include "core/hle/service/service.h"
 
 namespace Kernel {
 class KEvent;
-}
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Core::HID {
+enum class NpadIdType : u32;
+} // namespace Core::HID
 
 namespace Service::NFP {
 
+enum class ServiceType : u32 {
+    User,
+    Debug,
+    System,
+};
+
+enum class State : u32 {
+    NonInitialized,
+    Initialized,
+};
+
+enum class DeviceState : u32 {
+    Initialized,
+    SearchingForTag,
+    TagFound,
+    TagRemoved,
+    TagMounted,
+    Unaviable,
+    Finalized,
+};
+
+enum class ModelType : u32 {
+    Amiibo,
+};
+
+enum class MountTarget : u32 {
+    Rom,
+    Ram,
+    All,
+};
+
+enum class AmiiboType : u8 {
+    Figure,
+    Card,
+    Yarn,
+};
+
+enum class AmiiboSeries : u8 {
+    SuperSmashBros,
+    SuperMario,
+    ChibiRobo,
+    YoshiWoollyWorld,
+    Splatoon,
+    AnimalCrossing,
+    EightBitMario,
+    Skylanders,
+    Unknown8,
+    TheLegendOfZelda,
+    ShovelKnight,
+    Unknown11,
+    Kiby,
+    Pokemon,
+    MarioSportsSuperstars,
+    MonsterHunter,
+    BoxBoy,
+    Pikmin,
+    FireEmblem,
+    Metroid,
+    Others,
+    MegaMan,
+    Diablo
+};
+
+using TagUuid = std::array<u8, 10>;
+
+struct TagInfo {
+    TagUuid uuid;
+    u8 uuid_length;
+    INSERT_PADDING_BYTES(0x15);
+    s32 protocol;
+    u32 tag_type;
+    INSERT_PADDING_BYTES(0x30);
+};
+static_assert(sizeof(TagInfo) == 0x58, "TagInfo is an invalid size");
+
+struct CommonInfo {
+    u16 last_write_year;
+    u8 last_write_month;
+    u8 last_write_day;
+    u16 write_counter;
+    u16 version;
+    u32 application_area_size;
+    INSERT_PADDING_BYTES(0x34);
+};
+static_assert(sizeof(CommonInfo) == 0x40, "CommonInfo is an invalid size");
+
+struct ModelInfo {
+    u16 character_id;
+    u8 character_variant;
+    AmiiboType amiibo_type;
+    u16 model_number;
+    AmiiboSeries series;
+    u8 fixed;                   // Must be 02
+    INSERT_PADDING_BYTES(0x4);  // Unknown
+    INSERT_PADDING_BYTES(0x20); // Probably a SHA256-(HMAC?) hash
+    INSERT_PADDING_BYTES(0x14); // SHA256-HMAC
+};
+static_assert(sizeof(ModelInfo) == 0x40, "ModelInfo is an invalid size");
+
+struct RegisterInfo {
+    Service::Mii::MiiInfo mii_char_info;
+    u16 first_write_year;
+    u8 first_write_month;
+    u8 first_write_day;
+    std::array<u8, 11> amiibo_name;
+    u8 unknown;
+    INSERT_PADDING_BYTES(0x98);
+};
+static_assert(sizeof(RegisterInfo) == 0x100, "RegisterInfo is an invalid size");
+
 class Module final {
 public:
     class Interface : public ServiceFramework<Interface> {
@@ -24,34 +141,131 @@ public:
                            const char* name);
         ~Interface() override;
 
-        struct ModelInfo {
-            std::array<u8, 0x8> amiibo_identification_block;
-            INSERT_PADDING_BYTES(0x38);
+        struct EncryptedAmiiboFile {
+            u16 crypto_init;             // Must be A5 XX
+            u16 write_count;             // Number of times the amiibo has been written?
+            INSERT_PADDING_BYTES(0x20);  // System crypts
+            INSERT_PADDING_BYTES(0x20);  // SHA256-(HMAC?) hash
+            ModelInfo model_info;        // This struct is bigger than documentation
+            INSERT_PADDING_BYTES(0xC);   // SHA256-HMAC
+            INSERT_PADDING_BYTES(0x114); // section 1 encrypted buffer
+            INSERT_PADDING_BYTES(0x54);  // section 2 encrypted buffer
+        };
+        static_assert(sizeof(EncryptedAmiiboFile) == 0x1F8, "AmiiboFile is an invalid size");
+
+        struct NTAG215Password {
+            u32 PWD;  // Password to allow write access
+            u16 PACK; // Password acknowledge reply
+            u16 RFUI; // Reserved for future use
         };
-        static_assert(sizeof(ModelInfo) == 0x40, "ModelInfo is an invalid size");
+        static_assert(sizeof(NTAG215Password) == 0x8, "NTAG215Password is an invalid size");
 
-        struct AmiiboFile {
-            std::array<u8, 10> uuid;
-            INSERT_PADDING_BYTES(0x4a);
-            ModelInfo model_info;
+        struct NTAG215File {
+            TagUuid uuid;                    // Unique serial number
+            u16 lock_bytes;                  // Set defined pages as read only
+            u32 compability_container;       // Defines available memory
+            EncryptedAmiiboFile user_memory; // Writable data
+            u32 dynamic_lock;                // Dynamic lock
+            u32 CFG0;                        // Defines memory protected by password
+            u32 CFG1;                        // Defines number of verification attempts
+            NTAG215Password password;        // Password data
         };
-        static_assert(sizeof(AmiiboFile) == 0x94, "AmiiboFile is an invalid size");
+        static_assert(sizeof(NTAG215File) == 0x21C, "NTAG215File is an invalid size");
 
         void CreateUserInterface(Kernel::HLERequestContext& ctx);
         bool LoadAmiibo(const std::vector<u8>& buffer);
-        Kernel::KReadableEvent& GetNFCEvent();
-        const AmiiboFile& GetAmiiboBuffer() const;
+        void CloseAmiibo();
+
+        void Initialize();
+        void Finalize();
+
+        ResultCode StartDetection(s32 protocol_);
+        ResultCode StopDetection();
+        ResultCode Mount();
+        ResultCode Unmount();
+
+        ResultCode GetTagInfo(TagInfo& tag_info) const;
+        ResultCode GetCommonInfo(CommonInfo& common_info) const;
+        ResultCode GetModelInfo(ModelInfo& model_info) const;
+        ResultCode GetRegisterInfo(RegisterInfo& register_info) const;
+
+        ResultCode OpenApplicationArea(u32 access_id);
+        ResultCode GetApplicationArea(std::vector<u8>& data) const;
+        ResultCode SetApplicationArea(const std::vector<u8>& data);
+        ResultCode CreateApplicationArea(u32 access_id, const std::vector<u8>& data);
+
+        u64 GetHandle() const;
+        DeviceState GetCurrentState() const;
+        Core::HID::NpadIdType GetNpadId() const;
+
+        Kernel::KReadableEvent& GetActivateEvent() const;
+        Kernel::KReadableEvent& GetDeactivateEvent() const;
 
     protected:
         std::shared_ptr<Module> module;
 
     private:
+        /// Validates that the amiibo file is not corrupted
+        bool IsAmiiboValid() const;
+
+        bool AmiiboApplicationDataExist(u32 access_id) const;
+        std::vector<u8> LoadAmiiboApplicationData(u32 access_id) const;
+        void SaveAmiiboApplicationData(u32 access_id, const std::vector<u8>& data) const;
+
+        /// return password needed to allow write access to protected memory
+        u32 GetTagPassword(const TagUuid& uuid) const;
+
+        const Core::HID::NpadIdType npad_id;
+
+        DeviceState device_state{DeviceState::Unaviable};
         KernelHelpers::ServiceContext service_context;
-        Kernel::KEvent* nfc_tag_load;
-        AmiiboFile amiibo{};
+        Kernel::KEvent* activate_event;
+        Kernel::KEvent* deactivate_event;
+        NTAG215File tag_data{};
+        s32 protocol;
+        bool is_application_area_initialized{};
+        u32 application_area_id;
+        std::vector<u8> application_area_data;
     };
 };
 
+class IUser final : public ServiceFramework<IUser> {
+public:
+    explicit IUser(Module::Interface& nfp_interface_, Core::System& system_);
+
+private:
+    void Initialize(Kernel::HLERequestContext& ctx);
+    void Finalize(Kernel::HLERequestContext& ctx);
+    void ListDevices(Kernel::HLERequestContext& ctx);
+    void StartDetection(Kernel::HLERequestContext& ctx);
+    void StopDetection(Kernel::HLERequestContext& ctx);
+    void Mount(Kernel::HLERequestContext& ctx);
+    void Unmount(Kernel::HLERequestContext& ctx);
+    void OpenApplicationArea(Kernel::HLERequestContext& ctx);
+    void GetApplicationArea(Kernel::HLERequestContext& ctx);
+    void SetApplicationArea(Kernel::HLERequestContext& ctx);
+    void CreateApplicationArea(Kernel::HLERequestContext& ctx);
+    void GetTagInfo(Kernel::HLERequestContext& ctx);
+    void GetRegisterInfo(Kernel::HLERequestContext& ctx);
+    void GetCommonInfo(Kernel::HLERequestContext& ctx);
+    void GetModelInfo(Kernel::HLERequestContext& ctx);
+    void AttachActivateEvent(Kernel::HLERequestContext& ctx);
+    void AttachDeactivateEvent(Kernel::HLERequestContext& ctx);
+    void GetState(Kernel::HLERequestContext& ctx);
+    void GetDeviceState(Kernel::HLERequestContext& ctx);
+    void GetNpadId(Kernel::HLERequestContext& ctx);
+    void GetApplicationAreaSize(Kernel::HLERequestContext& ctx);
+    void AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx);
+
+    KernelHelpers::ServiceContext service_context;
+
+    // TODO(german77): We should have a vector of interfaces
+    Module::Interface& nfp_interface;
+
+    State state{State::NonInitialized};
+    Kernel::KEvent* availability_change_event;
+};
+
 void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system);
 
 } // namespace Service::NFP

src/yuzu/configuration/config.cpp

@@ -77,13 +77,13 @@ const std::array<UISettings::Shortcut, 22> Config::default_hotkeys{{
     {QStringLiteral("Exit Fullscreen"),          QStringLiteral("Main Window"), {QStringLiteral("Esc"),     QStringLiteral(""), Qt::WindowShortcut}},
     {QStringLiteral("Exit yuzu"),                QStringLiteral("Main Window"), {QStringLiteral("Ctrl+Q"),  QStringLiteral("Home+Minus"), Qt::WindowShortcut}},
     {QStringLiteral("Fullscreen"),               QStringLiteral("Main Window"), {QStringLiteral("F11"),     QStringLiteral("Home+B"), Qt::WindowShortcut}},
-    {QStringLiteral("Load Amiibo"),              QStringLiteral("Main Window"), {QStringLiteral("F2"),      QStringLiteral("Home+A"), Qt::WidgetWithChildrenShortcut}},
     {QStringLiteral("Load File"),                QStringLiteral("Main Window"), {QStringLiteral("Ctrl+O"),  QStringLiteral(""), Qt::WidgetWithChildrenShortcut}},
+    {QStringLiteral("Load/Remove Amiibo"),       QStringLiteral("Main Window"), {QStringLiteral("F2"),      QStringLiteral("Home+A"), Qt::WidgetWithChildrenShortcut}},
     {QStringLiteral("Restart Emulation"),        QStringLiteral("Main Window"), {QStringLiteral("F6"),      QStringLiteral(""), Qt::WindowShortcut}},
     {QStringLiteral("Stop Emulation"),           QStringLiteral("Main Window"), {QStringLiteral("F5"),      QStringLiteral(""), Qt::WindowShortcut}},
-    {QStringLiteral("TAS Start/Stop"),           QStringLiteral("Main Window"), {QStringLiteral("Ctrl+F5"), QStringLiteral(""), Qt::ApplicationShortcut}},
-    {QStringLiteral("TAS Reset"),                QStringLiteral("Main Window"), {QStringLiteral("Ctrl+F6"), QStringLiteral(""), Qt::ApplicationShortcut}},
     {QStringLiteral("TAS Record"),               QStringLiteral("Main Window"), {QStringLiteral("Ctrl+F7"), QStringLiteral(""), Qt::ApplicationShortcut}},
+    {QStringLiteral("TAS Reset"),                QStringLiteral("Main Window"), {QStringLiteral("Ctrl+F6"), QStringLiteral(""), Qt::ApplicationShortcut}},
+    {QStringLiteral("TAS Start/Stop"),           QStringLiteral("Main Window"), {QStringLiteral("Ctrl+F5"), QStringLiteral(""), Qt::ApplicationShortcut}},
     {QStringLiteral("Toggle Filter Bar"),        QStringLiteral("Main Window"), {QStringLiteral("Ctrl+F"),  QStringLiteral(""), Qt::WindowShortcut}},
     {QStringLiteral("Toggle Framerate Limit"),   QStringLiteral("Main Window"), {QStringLiteral("Ctrl+U"),  QStringLiteral("Home+Y"), Qt::ApplicationShortcut}},
     {QStringLiteral("Toggle Mouse Panning"),     QStringLiteral("Main Window"), {QStringLiteral("Ctrl+F9"), QStringLiteral(""), Qt::ApplicationShortcut}},

src/yuzu/main.cpp

@@ -934,7 +934,7 @@ void GMainWindow::InitializeHotkeys() {
     hotkey_registry.LoadHotkeys();
 
     LinkActionShortcut(ui->action_Load_File, QStringLiteral("Load File"));
-    LinkActionShortcut(ui->action_Load_Amiibo, QStringLiteral("Load Amiibo"));
+    LinkActionShortcut(ui->action_Load_Amiibo, QStringLiteral("Load/Remove Amiibo"));
     LinkActionShortcut(ui->action_Exit, QStringLiteral("Exit yuzu"));
     LinkActionShortcut(ui->action_Restart, QStringLiteral("Restart Emulation"));
     LinkActionShortcut(ui->action_Pause, QStringLiteral("Continue/Pause Emulation"));
@@ -2927,6 +2927,24 @@ void GMainWindow::OnLoadAmiibo() {
         return;
     }
 
+    Service::SM::ServiceManager& sm = system->ServiceManager();
+    auto nfc = sm.GetService<Service::NFP::Module::Interface>("nfp:user");
+    if (nfc == nullptr) {
+        QMessageBox::warning(this, tr("Error"), tr("The current game is not looking for amiibos"));
+        return;
+    }
+    const auto nfc_state = nfc->GetCurrentState();
+    if (nfc_state == Service::NFP::DeviceState::TagFound ||
+        nfc_state == Service::NFP::DeviceState::TagMounted) {
+        nfc->CloseAmiibo();
+        return;
+    }
+
+    if (nfc_state != Service::NFP::DeviceState::SearchingForTag) {
+        QMessageBox::warning(this, tr("Error"), tr("The current game is not looking for amiibos"));
+        return;
+    }
+
     is_amiibo_file_select_active = true;
     const QString extensions{QStringLiteral("*.bin")};
     const QString file_filter = tr("Amiibo File (%1);; All Files (*.*)").arg(extensions);

src/yuzu/main.ui

@@ -266,7 +266,7 @@
     <bool>false</bool>
    </property>
    <property name="text">
-    <string>Load &amp;Amiibo...</string>
+    <string>Load/Remove &amp;Amiibo...</string>
    </property>
   </action>
   <action name="action_Report_Compatibility">