1 files changed, 107 insertions, 0 deletions
diff --git a/Ryujinx.Horizon/Sdk/Sm/SmApi.cs b/Ryujinx.Horizon/Sdk/Sm/SmApi.cs
new file mode 100644
index 00000000..e4b0eea1
--- /dev/null
+++ b/Ryujinx.Horizon/Sdk/Sm/SmApi.cs
@@ -0,0 +1,107 @@
+using Ryujinx.Common.Memory;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf.Cmif;
+using System;
+
+namespace Ryujinx.Horizon.Sdk.Sm
+{
+    class SmApi
+    {
+        private int _portHandle;
+
+        public Result Initialize()
+        {
+            Result result = HorizonStatic.Syscall.ConnectToNamedPort(out int portHandle, "sm:");
+
+            while (result == KernelResult.NotFound)
+            {
+                HorizonStatic.Syscall.SleepThread(50000000L);
+                result = HorizonStatic.Syscall.ConnectToNamedPort(out portHandle, "sm:");
+            }
+
+            if (result.IsFailure)
+            {
+                return result;
+            }
+
+            _portHandle = portHandle;
+
+            return RegisterClient();
+        }
+
+        private Result RegisterClient()
+        {
+            Span<byte> data = stackalloc byte[8];
+
+            SpanWriter writer = new SpanWriter(data);
+
+            writer.Write(0UL);
+
+            return ServiceUtil.SendRequest(out _, _portHandle, 0, sendPid: true, data);
+        }
+
+        public Result GetServiceHandle(out int handle, ServiceName name)
+        {
+            Span<byte> data = stackalloc byte[8];
+
+            SpanWriter writer = new SpanWriter(data);
+
+            writer.Write(name);
+
+            Result result = ServiceUtil.SendRequest(out CmifResponse response, _portHandle, 1, sendPid: false, data);
+
+            if (result.IsFailure)
+            {
+                handle = 0;
+                return result;
+            }
+
+            handle = response.MoveHandles[0];
+            return Result.Success;
+        }
+
+        public Result RegisterService(out int handle, ServiceName name, int maxSessions, bool isLight)
+        {
+            Span<byte> data = stackalloc byte[16];
+
+            SpanWriter writer = new SpanWriter(data);
+
+            writer.Write(name);
+            writer.Write(isLight ? 1 : 0);
+            writer.Write(maxSessions);
+
+            Result result = ServiceUtil.SendRequest(out CmifResponse response, _portHandle, 2, sendPid: false, data);
+
+            if (result.IsFailure)
+            {
+                handle = 0;
+                return result;
+            }
+
+            handle = response.MoveHandles[0];
+            return Result.Success;
+        }
+
+        public Result UnregisterService(ServiceName name)
+        {
+            Span<byte> data = stackalloc byte[8];
+
+            SpanWriter writer = new SpanWriter(data);
+
+            writer.Write(name);
+
+            return ServiceUtil.SendRequest(out _, _portHandle, 3, sendPid: false, data);
+        }
+
+        public Result DetachClient()
+        {
+            Span<byte> data = stackalloc byte[8];
+
+            SpanWriter writer = new SpanWriter(data);
+
+            writer.Write(0UL);
+
+            return ServiceUtil.SendRequest(out _, _portHandle, 4, sendPid: true, data);
+        }
+    }
+}