From 1b66707daf032412062f1ffd874fdc56e2ea818d Mon Sep 17 00:00:00 2001
From: ParantezTech <12572227+par274@users.noreply.github.com>
Date: Thu, 8 Oct 2026 17:26:53 +0300
Subject: [PATCH] [SharePlay] Report inactive share-play state

Co-authored-by: Sekai <140012992+SekaixX@users.noreply.github.com>
---
 src/SharpEmu.Libs/Share/SharePlayExports.cs | 34 +++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 src/SharpEmu.Libs/Share/SharePlayExports.cs

diff --git a/src/SharpEmu.Libs/Share/SharePlayExports.cs b/src/SharpEmu.Libs/Share/SharePlayExports.cs
new file mode 100644
index 0000000..9baffec
--- /dev/null
+++ b/src/SharpEmu.Libs/Share/SharePlayExports.cs
@@ -0,0 +1,34 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.HLE;
+
+namespace SharpEmu.Libs.Share;
+
+public static class SharePlayExports
+{
+    private static int _controllerProhibited;
+
+    [SysAbiExport(
+        Nid = "FzQS6DREDfk",
+        ExportName = "sceSharePlayProhibitController",
+        Target = Generation.Gen5,
+        LibraryName = "libSceSharePlay")]
+    public static int SharePlayProhibitController(CpuContext ctx)
+    {
+        var prohibited = ctx[CpuRegister.Rdi];
+        if (prohibited > 1)
+        {
+            return ctx.SetReturn(OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT);
+        }
+
+        Volatile.Write(ref _controllerProhibited, unchecked((int)prohibited));
+        return ctx.SetReturn(OrbisGen2Result.ORBIS_GEN2_OK);
+    }
+
+    public static void ResetRuntimeState() => Volatile.Write(ref _controllerProhibited, 0);
+
+    internal static bool IsControllerProhibited => Volatile.Read(ref _controllerProhibited) != 0;
+
+    internal static void ResetForTests() => ResetRuntimeState();
+}