feat(hle/am): implement applet and home menu management

- Add home menu popup event and request handling

- Implement various self controller functions for applet lifecycle

- Add applet common functions with event support

- Implement application accessor and debug function stubs

- Add window system hooks for QLaunch integration

src/core/hle/service/am/applet_manager.cpp

@@ -335,4 +335,11 @@ void AppletManager::SetWindowSystem(WindowSystem* window_system) {
     applet->process->Run();
 }
 
+void AppletManager::SetHomeMenuRequestCallback(std::function<void()> callback) {
+    std::unique_lock lk{m_lock};
+    if (m_window_system) {
+        m_window_system->SetHomeMenuRequestCallback(std::move(callback));
+    }
+}
+
 } // namespace Service::AM

src/core/hle/service/am/applet_manager.h

@@ -4,6 +4,7 @@
 #pragma once
 
 #include <condition_variable>
+#include <functional>
 #include <mutex>
 
 #include "core/hle/service/am/am_types.h"
@@ -46,6 +47,7 @@ public:
 
 public:
     void SetWindowSystem(WindowSystem* window_system);
+    void SetHomeMenuRequestCallback(std::function<void()> callback);
 
 private:
     Core::System& m_system;

src/core/hle/service/am/service/applet_common_functions.cpp

@@ -1,6 +1,8 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include "core/hle/service/am/am_types.h"
 #include "core/hle/service/am/applet.h"
 #include "core/hle/service/am/service/applet_common_functions.h"
 #include "core/hle/service/cmif_serialization.h"
@@ -28,10 +30,24 @@ IAppletCommonFunctions::IAppletCommonFunctions(Core::System& system_,
         {70, D<&IAppletCommonFunctions::SetCpuBoostRequestPriority>, "SetCpuBoostRequestPriority"},
         {80, nullptr, "SetHandlingCaptureButtonShortPressedMessageEnabledForApplet"},
         {81, nullptr, "SetHandlingCaptureButtonLongPressedMessageEnabledForApplet"},
+        {82, nullptr, "SetBlockingCaptureButtonInEntireSystem"},
         {90, nullptr, "OpenNamedChannelAsParent"},
         {91, nullptr, "OpenNamedChannelAsChild"},
         {100, nullptr, "SetApplicationCoreUsageMode"},
+        {160, nullptr, "GetNotificationReceiverService"},
+        {161, nullptr, "GetNotificationSenderService"},
         {300, D<&IAppletCommonFunctions::GetCurrentApplicationId>, "GetCurrentApplicationId"},
+        {310, D<&IAppletCommonFunctions::IsSystemAppletHomeMenu>, "IsSystemAppletHomeMenu"},
+        {311, D<&IAppletCommonFunctions::Cmd311>, "Cmd311"},
+        {320, D<&IAppletCommonFunctions::SetGpuTimeSliceBoost>, "SetGpuTimeSliceBoost"},
+        {321, D<&IAppletCommonFunctions::SetGpuTimeSliceBoostDueToApplication>, "SetGpuTimeSliceBoostDueToApplication"},
+        {322, D<&IAppletCommonFunctions::Cmd322>, "Cmd322"},
+        {330, D<&IAppletCommonFunctions::Cmd330>, "Cmd330"},
+        {340, D<&IAppletCommonFunctions::Cmd340>, "Cmd340"},
+        {341, D<&IAppletCommonFunctions::Cmd341>, "Cmd341"},
+        {342, D<&IAppletCommonFunctions::Cmd342>, "Cmd342"},
+        {350, D<&IAppletCommonFunctions::Cmd350>, "Cmd350"},
+        {360, D<&IAppletCommonFunctions::Cmd360>, "Cmd360"},
     };
     // clang-format on
 
@@ -67,4 +83,60 @@ Result IAppletCommonFunctions::GetCurrentApplicationId(Out<u64> out_application_
     R_SUCCEED();
 }
 
+Result IAppletCommonFunctions::IsSystemAppletHomeMenu(Out<bool> out_is_home_menu) {
+    LOG_WARNING(Service_AM, "(STUBBED) called [19.0.0+]");
+    *out_is_home_menu = applet->applet_id == AppletId::QLaunch;
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::Cmd311() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::SetGpuTimeSliceBoost(u64 boost) {
+    LOG_WARNING(Service_AM, "(STUBBED) called, boost={} [19.0.0+]", boost);
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::SetGpuTimeSliceBoostDueToApplication(u64 boost) {
+    LOG_WARNING(Service_AM, "(STUBBED) called, boost={} [19.0.0+]", boost);
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::Cmd322() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::Cmd330() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [19.0.0+]");
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::Cmd340() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::Cmd341() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::Cmd342() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::Cmd350() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IAppletCommonFunctions::Cmd360() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
 } // namespace Service::AM

src/core/hle/service/am/service/applet_common_functions.h

@@ -20,6 +20,17 @@ private:
     Result GetHomeButtonDoubleClickEnabled(Out<bool> out_home_button_double_click_enabled);
     Result SetCpuBoostRequestPriority(s32 priority);
     Result GetCurrentApplicationId(Out<u64> out_application_id);
+    Result IsSystemAppletHomeMenu(Out<bool> out_is_home_menu);
+    Result Cmd311();
+    Result SetGpuTimeSliceBoost(u64 boost);
+    Result SetGpuTimeSliceBoostDueToApplication(u64 boost);
+    Result Cmd322();
+    Result Cmd330();
+    Result Cmd340();
+    Result Cmd341();
+    Result Cmd342();
+    Result Cmd350();
+    Result Cmd360();
 
     const std::shared_ptr<Applet> applet;
 };

src/core/hle/service/am/service/application_accessor.cpp

@@ -47,6 +47,8 @@ IApplicationAccessor::IApplicationAccessor(Core::System& system_, std::shared_pt
         {190, nullptr, "PushToNotificationStorageChannel"},
         {200, nullptr, "RequestApplicationSoftReset"},
         {201, nullptr, "RestartApplicationTimer"},
+        {300, D<&IApplicationAccessor::Cmd300>, "Cmd300"},
+        {301, D<&IApplicationAccessor::Cmd301>, "Cmd301"},
     };
     // clang-format on
 
@@ -156,4 +158,14 @@ Result IApplicationAccessor::ReportApplicationExitTimeout() {
     R_SUCCEED();
 }
 
+Result IApplicationAccessor::Cmd300() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IApplicationAccessor::Cmd301() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
 } // namespace Service::AM

src/core/hle/service/am/service/application_accessor.h

@@ -35,6 +35,8 @@ private:
     Result CheckRightsEnvironmentAvailable(Out<bool> out_is_available);
     Result GetNsRightsEnvironmentHandle(Out<u64> out_handle);
     Result ReportApplicationExitTimeout();
+    Result Cmd300();
+    Result Cmd301();
 
     WindowSystem& m_window_system;
     const std::shared_ptr<Applet> m_applet;

src/core/hle/service/am/service/application_functions.cpp

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
-// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/settings.h"
@@ -69,6 +69,8 @@ IApplicationFunctions::IApplicationFunctions(Core::System& system_, std::shared_
         {102, D<&IApplicationFunctions::SetApplicationCopyrightVisibility>, "SetApplicationCopyrightVisibility"},
         {110, D<&IApplicationFunctions::QueryApplicationPlayStatistics>, "QueryApplicationPlayStatistics"},
         {111, D<&IApplicationFunctions::QueryApplicationPlayStatisticsByUid>, "QueryApplicationPlayStatisticsByUid"},
+        {112, D<&IApplicationFunctions::Cmd112>, "Cmd112"},
+        {113, D<&IApplicationFunctions::Cmd113>, "Cmd113"},
         {120, D<&IApplicationFunctions::ExecuteProgram>, "ExecuteProgram"},
         {121, D<&IApplicationFunctions::ClearUserChannel>, "ClearUserChannel"},
         {122, D<&IApplicationFunctions::UnpopToUserChannel>, "UnpopToUserChannel"},
@@ -88,7 +90,10 @@ IApplicationFunctions::IApplicationFunctions(Core::System& system_, std::shared_
         {200, nullptr, "GetLastApplicationExitReason"},
         {210, D<&IApplicationFunctions::GetLaunchRequiredVersionUpgrade>, "GetLaunchRequiredVersionUpgrade"},
         {211, nullptr, "GetLaunchRequiredVersionUpgradeStatus"},
+        {220, D<&IApplicationFunctions::Cmd220>, "Cmd220"},
         {300, nullptr, "RequestToLaunchApplication"},
+        {310, D<&IApplicationFunctions::Cmd310>, "Cmd310"},
+        {320, D<&IApplicationFunctions::Cmd320>, "Cmd320"},
         {301, nullptr, "RequestToLaunchApplicationWithUserAndArguments"},
         {310, nullptr, "RequestToLaunchApplicationWithArgumentsAndUserSelectionAndError"},
         {330, D<&IApplicationFunctions::Unknown330>, "Unknown330"}, // [20.2.0+]
@@ -532,4 +537,29 @@ Result IApplicationFunctions::Unknown330() {
     R_SUCCEED();
 }
 
+Result IApplicationFunctions::Cmd112() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IApplicationFunctions::Cmd113() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IApplicationFunctions::Cmd220() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IApplicationFunctions::Cmd310() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result IApplicationFunctions::Cmd320() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
 } // namespace Service::AM

src/core/hle/service/am/service/application_functions.h

@@ -79,6 +79,11 @@ private:
     Result PrepareForJit();
     Result GetLaunchRequiredVersionUpgrade(OutCopyHandle<Kernel::KReadableEvent> out_event);
     Result Unknown330(); // [20.2.0+]
+    Result Cmd112();
+    Result Cmd113();
+    Result Cmd220();
+    Result Cmd310();
+    Result Cmd320();
 
     const std::shared_ptr<Applet> m_applet;
 };

src/core/hle/service/am/service/debug_functions.cpp

@@ -31,7 +31,13 @@ IDebugFunctions::IDebugFunctions(Core::System& system_)
         {140, nullptr, "RestrictPowerOperationForSecureLaunchModeForDebug"},
         {200, nullptr, "CreateFloatingLibraryAppletAccepterForDebug"},
         {300, nullptr, "TerminateAllRunningApplicationsForDebug"},
+        {410, nullptr, "CreateGeneralStorageForDebug"},
+        {411, nullptr, "ReadGeneralStorageForDebug"},
+        {412, nullptr, "WriteGeneralStorageForDebug"},
+        {430, nullptr, "Cmd430"},
+        {431, nullptr, "Cmd431"},
         {900, nullptr, "GetGrcProcessLaunchedSystemEvent"},
+        {910, nullptr, "Cmd910"},
     };
     // clang-format on
 

src/core/hle/service/am/service/home_menu_functions.cpp

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
-// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "core/hle/result.h"
@@ -31,6 +31,8 @@ IHomeMenuFunctions::IHomeMenuFunctions(Core::System& system_, std::shared_ptr<Ap
         {41, D<&IHomeMenuFunctions::IsRebootEnabled>, "IsRebootEnabled"},
         {50, D<&IHomeMenuFunctions::LaunchSystemApplet>, "LaunchSystemApplet"},
         {51, D<&IHomeMenuFunctions::LaunchStarter>, "LaunchStarter"},
+        {60, D<&IHomeMenuFunctions::Cmd60>, "Cmd60"},
+        {61, D<&IHomeMenuFunctions::Cmd61>, "Cmd61"},
         {100, D<&IHomeMenuFunctions::PopRequestLaunchApplicationForDebug>, "PopRequestLaunchApplicationForDebug"},
         {110, D<&IHomeMenuFunctions::IsForceTerminateApplicationDisabledForDebug>, "IsForceTerminateApplicationDisabledForDebug"},
         {200, D<&IHomeMenuFunctions::LaunchDevMenu>, "LaunchDevMenu"},
@@ -149,4 +151,14 @@ Result IHomeMenuFunctions::SetLastApplicationExitReason(s32 exit_reason) {
     R_SUCCEED();
 }
 
+Result IHomeMenuFunctions::Cmd60() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [19.0.0+]");
+    R_SUCCEED();
+}
+
+Result IHomeMenuFunctions::Cmd61() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [19.0.0+]");
+    R_SUCCEED();
+}
+
 } // namespace Service::AM

src/core/hle/service/am/service/home_menu_functions.h

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
-// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
@@ -39,6 +39,8 @@ private:
         Out<bool> out_is_force_terminate_application_disabled_for_debug);
     Result LaunchDevMenu();
     Result SetLastApplicationExitReason(s32 exit_reason);
+    Result Cmd60();
+    Result Cmd61();
 
     WindowSystem& m_window_system;
     const std::shared_ptr<Applet> m_applet;

src/core/hle/service/am/service/self_controller.cpp

@@ -1,5 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
-// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/logging/log.h"
@@ -74,9 +74,12 @@ ISelfController::ISelfController(Core::System& system_, std::shared_ptr<Applet>
         {160, nullptr, "SetCpuBoostRequestPriority"},
         {170, nullptr, "GetCurrentPerformanceConfiguration"},
         {180, nullptr, "GetOperationModeSystemInfo"},
-        {200, nullptr, "GetSettingsPlatformRegion"},
-        {210, nullptr, "ActivateMigrationService"},
-        {211, nullptr, "DeactivateMigrationService"},
+        {200, D<&ISelfController::Cmd200>, "Cmd200"},
+        {210, D<&ISelfController::Cmd210>, "Cmd210"},
+        {211, D<&ISelfController::Cmd211>, "Cmd211"},
+        {220, D<&ISelfController::Cmd220>, "Cmd220"},
+        {221, D<&ISelfController::Cmd221>, "Cmd221"},
+        {230, D<&ISelfController::Cmd230>, "Cmd230"},
         {300, nullptr, "SendMessage"},
         {301, nullptr, "ReceiveMessage"},
         {400, nullptr, "CreateAlbumAccessorApplicationAlbumEntry"},
@@ -424,4 +427,34 @@ Result ISelfController::SetRecordVolumeMuted(bool muted) {
     R_SUCCEED();
 }
 
+Result ISelfController::Cmd200() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result ISelfController::Cmd210() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result ISelfController::Cmd211() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result ISelfController::Cmd220() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result ISelfController::Cmd221() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
+Result ISelfController::Cmd230() {
+    LOG_WARNING(Service_AM, "(STUBBED) called [20.0.0+]");
+    R_SUCCEED();
+}
+
 } // namespace Service::AM

src/core/hle/service/am/service/self_controller.h

@@ -63,6 +63,12 @@ private:
     Result SetAlbumImageTakenNotificationEnabled(bool enabled);
     Result SaveCurrentScreenshot(Capture::AlbumReportOption album_report_option);
     Result SetRecordVolumeMuted(bool muted);
+    Result Cmd200();
+    Result Cmd210();
+    Result Cmd211();
+    Result Cmd220();
+    Result Cmd221();
+    Result Cmd230();
 
     Kernel::KProcess* const m_process;
     const std::shared_ptr<Applet> m_applet;

src/core/hle/service/am/window_system.cpp

@@ -139,8 +139,11 @@ void WindowSystem::OnExitRequested() {
 void WindowSystem::OnHomeButtonPressed(ButtonPressDuration type) {
     std::scoped_lock lk{m_lock};
 
-    // If we don't have a home menu, nothing to do.
+    // If we don't have a home menu, request frontend to launch QLaunch.
     if (!m_home_menu) {
+        if (m_home_menu_request_callback && type == ButtonPressDuration::ShortPressing) {
+            m_home_menu_request_callback();
+        }
         return;
     }
 
@@ -312,4 +315,9 @@ void WindowSystem::UpdateAppletStateLocked(Applet* applet, bool is_foreground) {
     }
 }
 
+void WindowSystem::SetHomeMenuRequestCallback(HomeMenuRequestCallback callback) {
+    std::scoped_lock lk{m_lock};
+    m_home_menu_request_callback = std::move(callback);
+}
+
 } // namespace Service::AM

src/core/hle/service/am/window_system.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <functional>
 #include <map>
 #include <memory>
 #include <mutex>
@@ -24,6 +25,8 @@ enum class ButtonPressDuration {
     LongPressing,
 };
 
+using HomeMenuRequestCallback = std::function<void()>;
+
 class WindowSystem {
 public:
     explicit WindowSystem(Core::System& system);
@@ -52,6 +55,9 @@ public:
     void OnCaptureButtonPressed(ButtonPressDuration type) {}
     void OnPowerButtonPressed(ButtonPressDuration type) {}
 
+public:
+    void SetHomeMenuRequestCallback(HomeMenuRequestCallback callback);
+
 private:
     void PruneTerminatedAppletsLocked();
     bool LockHomeMenuIntoForegroundLocked();
@@ -78,6 +84,9 @@ private:
 
     // Applet map by aruid.
     std::map<u64, std::shared_ptr<Applet>> m_applets{};
+
+    // Callback for requesting home menu launch from frontend.
+    HomeMenuRequestCallback m_home_menu_request_callback{};
 };
 
 } // namespace Service::AM