frontend: Add frontend responder for controller applet

src/core/CMakeLists.txt

@@ -84,6 +84,8 @@ add_library(core STATIC
     file_sys/vfs_vector.h
     file_sys/xts_archive.cpp
     file_sys/xts_archive.h
+    frontend/applets/controller.cpp
+    frontend/applets/controller.h
     frontend/applets/profile_select.cpp
     frontend/applets/profile_select.h
     frontend/applets/software_keyboard.cpp
@@ -169,6 +171,8 @@ add_library(core STATIC
     hle/service/am/applet_oe.h
     hle/service/am/applets/applets.cpp
     hle/service/am/applets/applets.h
+    hle/service/am/applets/controller.cpp
+    hle/service/am/applets/controller.h
     hle/service/am/applets/profile_select.cpp
     hle/service/am/applets/profile_select.h
     hle/service/am/applets/software_keyboard.cpp

src/core/frontend/applets/controller.cpp

@@ -0,0 +1,38 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/core.h"
+#include "core/frontend/applets/controller.h"
+#include "core/hle/service/hid/controllers/npad.h"
+#include "core/hle/service/hid/hid.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Core::Frontend {
+
+ControllerApplet::~ControllerApplet() = default;
+
+DefaultControllerApplet::~DefaultControllerApplet() = default;
+
+void DefaultControllerApplet::ReconfigureControllers(std::function<void(bool)> completed,
+                                                     ControllerParameters parameters) const {
+    LOG_WARNING(Service_HID, "(STUBBED) called, automatically setting controller types to best fit "
+                             "in configuration, may be incorrect!");
+
+    const auto& npad =
+        Core::System::GetInstance()
+            .ServiceManager()
+            .GetService<Service::HID::Hid>("hid")
+            ->GetAppletResource()
+            ->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad);
+
+    for (auto& player : Settings::values.players) {
+        const auto prio = Service::HID::Controller_NPad::MapSettingsTypeToNPad(player.type);
+        player.type =
+            Service::HID::Controller_NPad::MapNPadTypeToSettings(npad.DecideBestController(prio));
+    }
+
+    completed(true);
+}
+
+} // namespace Core::Frontend

src/core/frontend/applets/controller.h

@@ -0,0 +1,47 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+#include <optional>
+#include <string>
+#include "common/bit_field.h"
+#include "common/common_types.h"
+
+namespace Core::Frontend {
+
+struct ControllerParameters {
+    u8 min_players;
+    u8 max_players;
+    bool keep_current_connected;
+    bool merge_dual_joycons;
+    bool allowed_single_layout;
+
+    bool allowed_pro_controller;
+    bool allowed_handheld;
+    bool allowed_joycon_dual;
+    bool allowed_joycon_left;
+    bool allowed_joycon_right;
+
+    bool horizontal_single_joycons;
+};
+
+class ControllerApplet {
+public:
+    virtual ~ControllerApplet();
+
+    virtual void ReconfigureControllers(std::function<void(bool)> completed,
+                                        ControllerParameters parameters) const = 0;
+};
+
+class DefaultControllerApplet final : public ControllerApplet {
+public:
+    ~DefaultControllerApplet() override;
+
+    void ReconfigureControllers(std::function<void(bool)> completed,
+                                ControllerParameters parameters) const override;
+};
+
+} // namespace Core::Frontend