nfc: Add Amiibo support (REOPENED) (#4337)

* Initial implementation

* Various fixes and new features

* Address some review comments

* Fixes

* Address more comments

* Use g_hle_lock

* Add more state checking, remove unneeded include

* Minor changes

src/citra_qt/main.cpp

@@ -45,6 +45,7 @@
 #include "citra_qt/util/clickable_label.h"
 #include "common/common_paths.h"
 #include "common/detached_tasks.h"
+#include "common/file_util.h"
 #include "common/logging/backend.h"
 #include "common/logging/filter.h"
 #include "common/logging/log.h"
@@ -58,6 +59,7 @@
 #include "core/frontend/applets/default_applets.h"
 #include "core/gdbstub/gdbstub.h"
 #include "core/hle/service/fs/archive.h"
+#include "core/hle/service/nfc/nfc.h"
 #include "core/loader/loader.h"
 #include "core/movie.h"
 #include "core/settings.h"
@@ -496,6 +498,8 @@ void GMainWindow::ConnectMenuEvents() {
     connect(ui.action_Load_File, &QAction::triggered, this, &GMainWindow::OnMenuLoadFile);
     connect(ui.action_Install_CIA, &QAction::triggered, this, &GMainWindow::OnMenuInstallCIA);
     connect(ui.action_Exit, &QAction::triggered, this, &QMainWindow::close);
+    connect(ui.action_Load_Amiibo, &QAction::triggered, this, &GMainWindow::OnLoadAmiibo);
+    connect(ui.action_Remove_Amiibo, &QAction::triggered, this, &GMainWindow::OnRemoveAmiibo);
 
     // Emulation
     connect(ui.action_Start, &QAction::triggered, this, &GMainWindow::OnStartGame);
@@ -848,6 +852,8 @@ void GMainWindow::ShutdownGame() {
     ui.action_Pause->setEnabled(false);
     ui.action_Stop->setEnabled(false);
     ui.action_Restart->setEnabled(false);
+    ui.action_Load_Amiibo->setEnabled(false);
+    ui.action_Remove_Amiibo->setEnabled(false);
     ui.action_Report_Compatibility->setEnabled(false);
     ui.action_Enable_Frame_Advancing->setEnabled(false);
     ui.action_Enable_Frame_Advancing->setChecked(false);
@@ -1135,6 +1141,7 @@ void GMainWindow::OnStartGame() {
     ui.action_Pause->setEnabled(true);
     ui.action_Stop->setEnabled(true);
     ui.action_Restart->setEnabled(true);
+    ui.action_Load_Amiibo->setEnabled(true);
     ui.action_Report_Compatibility->setEnabled(true);
     ui.action_Enable_Frame_Advancing->setEnabled(true);
 
@@ -1289,6 +1296,40 @@ void GMainWindow::OnConfigure() {
     }
 }
 
+void GMainWindow::OnLoadAmiibo() {
+    const QString extensions{"*.bin"};
+    const QString file_filter = tr("Amiibo File (%1);; All Files (*.*)").arg(extensions);
+    const QString filename = QFileDialog::getOpenFileName(this, tr("Load Amiibo"), "", file_filter);
+
+    if (!filename.isEmpty()) {
+        Core::System& system{Core::System::GetInstance()};
+        Service::SM::ServiceManager& sm = system.ServiceManager();
+        auto nfc = sm.GetService<Service::NFC::Module::Interface>("nfc:u");
+        if (nfc != nullptr) {
+            Service::NFC::AmiiboData amiibo_data{};
+            auto nfc_file = FileUtil::IOFile(filename.toStdString(), "rb");
+            std::size_t read_length =
+                nfc_file.ReadBytes(&amiibo_data, sizeof(Service::NFC::AmiiboData));
+            if (read_length != sizeof(Service::NFC::AmiiboData)) {
+                LOG_ERROR(Frontend, "Amiibo file size is incorrect");
+                return;
+            }
+            nfc->LoadAmiibo(amiibo_data);
+            ui.action_Remove_Amiibo->setEnabled(true);
+        }
+    }
+}
+
+void GMainWindow::OnRemoveAmiibo() {
+    Core::System& system{Core::System::GetInstance()};
+    Service::SM::ServiceManager& sm = system.ServiceManager();
+    auto nfc = sm.GetService<Service::NFC::Module::Interface>("nfc:u");
+    if (nfc != nullptr) {
+        nfc->RemoveAmiibo();
+        ui.action_Remove_Amiibo->setEnabled(false);
+    }
+}
+
 void GMainWindow::OnToggleFilterBar() {
     game_list->setFilterVisible(ui.action_Show_Filter_Bar->isChecked());
     if (ui.action_Show_Filter_Bar->isChecked()) {

src/citra_qt/main.h

@@ -166,6 +166,8 @@ private slots:
     void OnCIAInstallFinished();
     void OnMenuRecentFile();
     void OnConfigure();
+    void OnLoadAmiibo();
+    void OnRemoveAmiibo();
     void OnToggleFilterBar();
     void OnDisplayTitleBars(bool);
     void ToggleFullscreen();

src/citra_qt/main.ui

@@ -57,11 +57,20 @@
       <string>Recent Files</string>
      </property>
     </widget>
+    <widget class="QMenu" name="menu_Amiibo">
+     <property name="title">
+      <string>Amiibo</string>
+     </property>
+     <addaction name="action_Load_Amiibo"/>
+     <addaction name="action_Remove_Amiibo"/>
+    </widget>
     <addaction name="action_Load_File"/>
     <addaction name="action_Install_CIA"/>
     <addaction name="separator"/>
     <addaction name="menu_recent_files"/>
     <addaction name="separator"/>
+    <addaction name="menu_Amiibo"/>
+    <addaction name="separator"/>
     <addaction name="action_Exit"/>
    </widget>
    <widget class="QMenu" name="menu_Emulation">
@@ -415,6 +424,22 @@
     <string>Restart</string>
    </property>
   </action>
+  <action name="action_Load_Amiibo">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="text">
+    <string>Load...</string>
+   </property>
+  </action>
+  <action name="action_Remove_Amiibo">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="text">
+    <string>Remove</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>