feat(hle/am): add event handling for state controllers

- Implement GetGpuErrorDetectedSystemEvent (cmd 1020)

- Implement GetFriendInvitationStorageChannelEvent (cmd 1030)

- Implement GetNotificationStorageChannelEvent (cmd 1040)

- Implement GetHealthWarningDisappearedSystemEvent (cmd 1050)

- Implement GetAccumulatedSuspendedTickChangedEvent (cmd 63)

src/core/hle/service/am/service/common_state_getter.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"
@@ -82,13 +82,13 @@ ICommonStateGetter::ICommonStateGetter(Core::System& system_, std::shared_ptr<Ap
         {1001, nullptr, "GetScreenShotPermission"},
         {1010, nullptr, "GetNextProgramArgumentInfo"},
         {1011, nullptr, "GetPreviousProgramArgumentInfo"},
-        {1020, nullptr, "GetGpuErrorDetectedSystemEvent"},
+        {1020, D<&ICommonStateGetter::GetGpuErrorDetectedSystemEvent>, "GetGpuErrorDetectedSystemEvent"},
         {1021, nullptr, "SetDelayTimeToAbortOnGpuError"},
-        {1030, nullptr, "GetFriendInvitationStorageChannelEvent"},
+        {1030, D<&ICommonStateGetter::GetFriendInvitationStorageChannelEvent>, "GetFriendInvitationStorageChannelEvent"},
         {1031, nullptr, "TryPopFromFriendInvitationStorageChannel"},
-        {1040, nullptr, "GetNotificationStorageChannelEvent"},
+        {1040, D<&ICommonStateGetter::GetNotificationStorageChannelEvent>, "GetNotificationStorageChannelEvent"},
         {1041, nullptr, "TryPopFromNotificationStorageChannel"},
-        {1050, nullptr, "GetHealthWarningDisappearedSystemEvent"},
+        {1050, D<&ICommonStateGetter::GetHealthWarningDisappearedSystemEvent>, "GetHealthWarningDisappearedSystemEvent"},
         {1060, nullptr, "SetHdcpAuthenticationActivated"},
         {1061, nullptr, "GetLastForegroundCaptureImageEx"},
         {1062, nullptr, "GetLastApplicationCaptureImageEx"},
@@ -297,4 +297,32 @@ Result ICommonStateGetter::SetRequestExitToLibraryAppletAtExecuteNextProgramEnab
     R_SUCCEED();
 }
 
+Result ICommonStateGetter::GetGpuErrorDetectedSystemEvent(
+    OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_AM, "called");
+    *out_event = m_applet->gpu_error_detected_event.GetHandle();
+    R_SUCCEED();
+}
+
+Result ICommonStateGetter::GetFriendInvitationStorageChannelEvent(
+    OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_AM, "called");
+    *out_event = m_applet->friend_invitation_storage_channel_event.GetHandle();
+    R_SUCCEED();
+}
+
+Result ICommonStateGetter::GetNotificationStorageChannelEvent(
+    OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_AM, "called");
+    *out_event = m_applet->notification_storage_channel_event.GetHandle();
+    R_SUCCEED();
+}
+
+Result ICommonStateGetter::GetHealthWarningDisappearedSystemEvent(
+    OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_AM, "called");
+    *out_event = m_applet->health_warning_disappeared_system_event.GetHandle();
+    R_SUCCEED();
+}
+
 } // namespace Service::AM

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

@@ -53,6 +53,10 @@ private:
                                     OutArray<AppletId, BufferAttr_HipcMapAlias> out_applet_ids);
     Result GetSettingsPlatformRegion(Out<Set::PlatformRegion> out_settings_platform_region);
     Result SetRequestExitToLibraryAppletAtExecuteNextProgramEnabled();
+    Result GetGpuErrorDetectedSystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetFriendInvitationStorageChannelEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetNotificationStorageChannelEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetHealthWarningDisappearedSystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
 
     void SetCpuBoostMode(HLERequestContext& ctx);
 

src/core/hle/service/am/service/global_state_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 "core/hle/service/am/service/cradle_firmware_updater.h"
@@ -10,7 +10,8 @@ namespace Service::AM {
 
 IGlobalStateController::IGlobalStateController(Core::System& system_)
     : ServiceFramework{system_, "IGlobalStateController"},
-      m_context{system_, "IGlobalStateController"}, m_hdcp_authentication_failed_event{m_context} {
+      m_context{system_, "IGlobalStateController"}, m_hdcp_authentication_failed_event{m_context},
+      m_accumulated_suspended_tick_changed_event{m_context} {
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, D<&IGlobalStateController::RequestToEnterSleep>, "RequestToEnterSleep"},
@@ -35,7 +36,7 @@ IGlobalStateController::IGlobalStateController(Core::System& system_)
         {60, nullptr, "SetWirelessPriorityMode"},
         {61, nullptr, "GetWirelessPriorityMode"},
         {62, nullptr, "GetAccumulatedSuspendedTickValue"},
-        {63, nullptr, "GetAccumulatedSuspendedTickChangedEvent"},
+        {63, D<&IGlobalStateController::GetAccumulatedSuspendedTickChangedEvent>, "GetAccumulatedSuspendedTickChangedEvent"},
         {64, nullptr, "SetAlarmTimeChangeEvent"},
         {65, nullptr, "GetWakeupCount"},
         {66, nullptr, "GetHomeButtonInputProtectionStartTime"},
@@ -130,4 +131,11 @@ Result IGlobalStateController::UpdateDefaultDisplayResolution() {
     R_SUCCEED();
 }
 
+Result IGlobalStateController::GetAccumulatedSuspendedTickChangedEvent(
+    OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_AM, "called");
+    *out_event = m_accumulated_suspended_tick_changed_event.GetHandle();
+    R_SUCCEED();
+}
+
 } // namespace Service::AM

src/core/hle/service/am/service/global_state_controller.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
@@ -33,9 +33,11 @@ private:
     Result GetHdcpAuthenticationFailedEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
     Result OpenCradleFirmwareUpdater(
         Out<SharedPointer<ICradleFirmwareUpdater>> out_cradle_firmware_updater);
+    Result GetAccumulatedSuspendedTickChangedEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
 
     KernelHelpers::ServiceContext m_context;
     Event m_hdcp_authentication_failed_event;
+    Event m_accumulated_suspended_tick_changed_event;
 };
 
 } // namespace Service::AM