Refactoring HOS folder structure (#771)

* Refactoring HOS folder structure

Refactoring HOS folder structure:

- Added some subfolders when needed (Following structure decided in private).
- Added some `Types` folders when needed.
- Little cleanup here and there.
- Add services placeholders for every HOS services (close #766 and #753).

* Remove Types namespaces

Ryujinx.HLE/HOS/Services/Ptm/Psm/IPsmSession.cs

@@ -0,0 +1,88 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.HLE.HOS.Ipc;
+using Ryujinx.HLE.HOS.Kernel.Common;
+using Ryujinx.HLE.HOS.Kernel.Threading;
+
+namespace Ryujinx.HLE.HOS.Services.Ptm.Psm
+{
+    class IPsmSession : IpcService
+    {
+        private KEvent _stateChangeEvent;
+        private int    _stateChangeEventHandle;
+
+        public IPsmSession(Horizon system)
+        {
+            _stateChangeEvent       = new KEvent(system);
+            _stateChangeEventHandle = -1;
+        }
+
+        [Command(0)]
+        // BindStateChangeEvent() -> KObject
+        public ResultCode BindStateChangeEvent(ServiceCtx context)
+        {
+            if (_stateChangeEventHandle == -1)
+            {
+                KernelResult resultCode = context.Process.HandleTable.GenerateHandle(_stateChangeEvent.ReadableEvent, out int stateChangeEventHandle);
+
+                if (resultCode != KernelResult.Success)
+                {
+                    return (ResultCode)resultCode;
+                }
+            }
+
+            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_stateChangeEventHandle);
+
+            Logger.PrintStub(LogClass.ServicePsm);
+
+            return ResultCode.Success;
+        }
+
+        [Command(1)]
+        // UnbindStateChangeEvent()
+        public ResultCode UnbindStateChangeEvent(ServiceCtx context)
+        {
+            if (_stateChangeEventHandle != -1)
+            {
+                context.Process.HandleTable.CloseHandle(_stateChangeEventHandle);
+                _stateChangeEventHandle = -1;
+            }
+
+            Logger.PrintStub(LogClass.ServicePsm);
+
+            return ResultCode.Success;
+        }
+
+        [Command(2)]
+        // SetChargerTypeChangeEventEnabled(u8)
+        public ResultCode SetChargerTypeChangeEventEnabled(ServiceCtx context)
+        {
+            bool chargerTypeChangeEventEnabled = context.RequestData.ReadBoolean();
+
+            Logger.PrintStub(LogClass.ServicePsm, new { chargerTypeChangeEventEnabled });
+
+            return ResultCode.Success;
+        }
+
+        [Command(3)]
+        // SetPowerSupplyChangeEventEnabled(u8)
+        public ResultCode SetPowerSupplyChangeEventEnabled(ServiceCtx context)
+        {
+            bool powerSupplyChangeEventEnabled = context.RequestData.ReadBoolean();
+
+            Logger.PrintStub(LogClass.ServicePsm, new { powerSupplyChangeEventEnabled });
+
+            return ResultCode.Success;
+        }
+
+        [Command(4)]
+        // SetBatteryVoltageStateChangeEventEnabled(u8)
+        public ResultCode SetBatteryVoltageStateChangeEventEnabled(ServiceCtx context)
+        {
+            bool batteryVoltageStateChangeEventEnabled = context.RequestData.ReadBoolean();
+
+            Logger.PrintStub(LogClass.ServicePsm, new { batteryVoltageStateChangeEventEnabled });
+
+            return ResultCode.Success;
+        }
+    }
+}