nfc/nfp: Implement ISystemManager and ISystem (#2381)

* nfc/nfp: Implement ISystemManager and ISystem

This PR add permission levels for `nfc` and `nfp` services:
- `nfc`: `CreateUserInterface` and `CreateSystemInterface` are implemented.
- `INfc`: `Initialize` and `IsNfcEnabled` calls are stubbed.
- `nfp`: `CreateDebugInterface` and `CreateSystemInterface` are implemented.
- `INfp`: `GetRegisterInfo2` for `IDebug` and `ISystem` are implemented.

* Addresses gdkchan feedback

2 files changed, 45 insertions, 0 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Nfc/NfcManager/INfc.cs b/Ryujinx.HLE/HOS/Services/Nfc/NfcManager/INfc.cs
new file mode 100644
index 00000000..f2fc867d
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Services/Nfc/NfcManager/INfc.cs
@@ -0,0 +1,37 @@
+using Ryujinx.Common.Logging;
+
+namespace Ryujinx.HLE.HOS.Services.Nfc.NfcManager
+{
+    class INfc : IpcService
+    {
+        private NfcPermissionLevel _permissionLevel;
+
+        public INfc(NfcPermissionLevel permissionLevel)
+        {
+            _permissionLevel = permissionLevel;
+        }
+
+        [CommandHipc(0)]
+        [CommandHipc(400)] // 4.0.0+
+        // Initialize()
+        public ResultCode Initialize(ServiceCtx context)
+        {
+            Logger.Stub?.PrintStub(LogClass.ServiceNfc, new { _permissionLevel });
+
+            return ResultCode.Success;
+        }
+
+        [CommandHipc(3)]
+        [CommandHipc(403)] // 4.0.0+
+        // IsNfcEnabled() -> b8
+        public ResultCode IsNfcEnabled(ServiceCtx context)
+        {
+            // NOTE: Write false value here could make nfp service not called.
+            context.ResponseData.Write(true);
+
+            Logger.Stub?.PrintStub(LogClass.ServiceNfc, new { _permissionLevel });
+
+            return ResultCode.Success;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.HLE/HOS/Services/Nfc/NfcManager/Types/NfcPermissionLevel.cs b/Ryujinx.HLE/HOS/Services/Nfc/NfcManager/Types/NfcPermissionLevel.cs
new file mode 100644
index 00000000..39babc73
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Services/Nfc/NfcManager/Types/NfcPermissionLevel.cs
@@ -0,0 +1,8 @@
+namespace Ryujinx.HLE.HOS.Services.Nfc.NfcManager
+{
+    enum NfcPermissionLevel
+    {
+        User,
+        System
+    }
+}
\ No newline at end of file