1 files changed, 73 insertions, 0 deletions
diff --git a/src/core/hle/service/am/process_winding_controller.cpp b/src/core/hle/service/am/process_winding_controller.cpp
new file mode 100644
index 000000000..7b3ab157f
--- /dev/null
+++ b/src/core/hle/service/am/process_winding_controller.cpp
@@ -0,0 +1,73 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/am/applets/applets.h"
+#include "core/hle/service/am/library_applet_accessor.h"
+#include "core/hle/service/am/process_winding_controller.h"
+#include "core/hle/service/ipc_helpers.h"
+
+namespace Service::AM {
+
+IProcessWindingController::IProcessWindingController(Core::System& system_)
+    : ServiceFramework{system_, "IProcessWindingController"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, &IProcessWindingController::GetLaunchReason, "GetLaunchReason"},
+        {11, &IProcessWindingController::OpenCallingLibraryApplet, "OpenCallingLibraryApplet"},
+        {21, nullptr, "PushContext"},
+        {22, nullptr, "PopContext"},
+        {23, nullptr, "CancelWindingReservation"},
+        {30, nullptr, "WindAndDoReserved"},
+        {40, nullptr, "ReserveToStartAndWaitAndUnwindThis"},
+        {41, nullptr, "ReserveToStartAndWait"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IProcessWindingController::~IProcessWindingController() = default;
+
+void IProcessWindingController::GetLaunchReason(HLERequestContext& ctx) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+
+    struct AppletProcessLaunchReason {
+        u8 flag;
+        INSERT_PADDING_BYTES(3);
+    };
+    static_assert(sizeof(AppletProcessLaunchReason) == 0x4,
+                  "AppletProcessLaunchReason is an invalid size");
+
+    AppletProcessLaunchReason reason{
+        .flag = 0,
+    };
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushRaw(reason);
+}
+
+void IProcessWindingController::OpenCallingLibraryApplet(HLERequestContext& ctx) {
+    const auto applet_id = system.GetAppletManager().GetCurrentAppletId();
+    const auto applet_mode = Applets::LibraryAppletMode::AllForeground;
+
+    LOG_WARNING(Service_AM, "(STUBBED) called with applet_id={:08X}, applet_mode={:08X}", applet_id,
+                applet_mode);
+
+    const auto& applet_manager{system.GetAppletManager()};
+    const auto applet = applet_manager.GetApplet(applet_id, applet_mode);
+
+    if (applet == nullptr) {
+        LOG_ERROR(Service_AM, "Applet doesn't exist! applet_id={}", applet_id);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultUnknown);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<ILibraryAppletAccessor>(system, applet);
+}
+
+} // namespace Service::AM