1 files changed, 80 insertions, 0 deletions
diff --git a/Ryujinx.Core/OsHle/Objects/Am/IApplicationFunctions.cs b/Ryujinx.Core/OsHle/Objects/Am/IApplicationFunctions.cs
new file mode 100644
index 00000000..939ad248
--- /dev/null
+++ b/Ryujinx.Core/OsHle/Objects/Am/IApplicationFunctions.cs
@@ -0,0 +1,80 @@
+using Ryujinx.Core.OsHle.Ipc;
+using System.Collections.Generic;
+using System.IO;
+
+using static Ryujinx.Core.OsHle.Objects.ObjHelper;
+
+namespace Ryujinx.Core.OsHle.Objects.Am
+{
+    class IApplicationFunctions : IIpcInterface
+    {
+        private Dictionary<int, ServiceProcessRequest> m_Commands;
+
+        public IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
+
+        public IApplicationFunctions()
+        {
+            m_Commands = new Dictionary<int, ServiceProcessRequest>()
+            {
+                {  1, PopLaunchParameter },
+                { 20, EnsureSaveData     },
+                { 21, GetDesiredLanguage },
+                { 40, NotifyRunning      }
+            };
+        }
+
+        private const uint LaunchParamsMagic = 0xc79497ca;
+
+        public long PopLaunchParameter(ServiceCtx Context)
+        {
+            //Only the first 0x18 bytes of the Data seems to be actually used.
+            MakeObject(Context, new IStorage(MakeLaunchParams()));
+
+            return 0;
+        }
+
+        public long EnsureSaveData(ServiceCtx Context)
+        {
+            long UIdLow  = Context.RequestData.ReadInt64();
+            long UIdHigh = Context.RequestData.ReadInt64();
+
+            Context.ResponseData.Write(0L);
+
+            return 0;
+        }
+
+        public long GetDesiredLanguage(ServiceCtx Context)
+        {
+            //This is an enumerator where each number is a differnet language.
+            //0 is Japanese and 1 is English, need to figure out the other codes.
+            Context.ResponseData.Write(1L);
+
+            return 0;
+        }
+
+        public long NotifyRunning(ServiceCtx Context)
+        {
+            Context.ResponseData.Write(1);
+
+            return 0;
+        }
+
+        private byte[] MakeLaunchParams()
+        {
+            //Size needs to be at least 0x88 bytes otherwise application errors.
+            using (MemoryStream MS = new MemoryStream())
+            {
+                BinaryWriter Writer = new BinaryWriter(MS);
+
+                MS.SetLength(0x88);
+
+                Writer.Write(LaunchParamsMagic);
+                Writer.Write(1);  //IsAccountSelected? Only lower 8 bits actually used.
+                Writer.Write(1L); //User Id Low (note: User Id needs to be != 0)
+                Writer.Write(0L); //User Id High
+
+                return MS.ToArray();
+            }
+        }
+    }
+}
+\ No newline at end of file