1 files changed, 76 insertions, 0 deletions
diff --git a/Ryujinx.HLE/Input/HidBaseController.cs b/Ryujinx.HLE/Input/HidBaseController.cs
new file mode 100644
index 00000000..9b9bb7ea
--- /dev/null
+++ b/Ryujinx.HLE/Input/HidBaseController.cs
@@ -0,0 +1,76 @@
+using static Ryujinx.HLE.Input.Hid;
+
+namespace Ryujinx.HLE.Input
+{
+    public abstract class HidControllerBase : IHidDevice
+    {
+        protected HidControllerType HidControllerType;
+        protected Switch            Device;
+        protected HidControllerId   ControllerId;
+
+        public long Offset    { get; private set; }
+        public bool Connected { get; protected set; }
+
+        public HidControllerBase(HidControllerType ControllerType, Switch Device)
+        {
+            this.Device = Device;
+
+            HidControllerType = ControllerType;
+        }
+
+        public virtual void Connect(HidControllerId ControllerId)
+        {
+            this.ControllerId = ControllerId;
+
+            Offset = Device.Hid.HidPosition + HidControllersOffset + (int)ControllerId * HidControllerSize;
+
+            Device.Memory.FillWithZeros(Offset, 0x5000);
+
+            Device.Memory.WriteInt32(Offset + 0x00, (int)HidControllerType);
+        }
+
+        public abstract void SendInput(
+            HidControllerButtons Buttons,
+            HidJoystickPosition  LeftStick,
+            HidJoystickPosition  RightStick);
+
+        protected long WriteInput(
+            HidControllerButtons Buttons,
+            HidJoystickPosition  LeftStick,
+            HidJoystickPosition  RightStick, 
+            HidControllerLayouts ControllerLayout)
+        {
+            long ControllerOffset = Offset + HidControllerHeaderSize;
+
+            ControllerOffset += (int)ControllerLayout * HidControllerLayoutsSize;
+
+            long LastEntry = Device.Memory.ReadInt64(ControllerOffset + 0x10);
+            long CurrEntry = (LastEntry + 1) % HidEntryCount;
+            long Timestamp = GetTimestamp();
+
+            Device.Memory.WriteInt64(ControllerOffset + 0x00, Timestamp);
+            Device.Memory.WriteInt64(ControllerOffset + 0x08, HidEntryCount);
+            Device.Memory.WriteInt64(ControllerOffset + 0x10, CurrEntry);
+            Device.Memory.WriteInt64(ControllerOffset + 0x18, HidEntryCount - 1);
+
+            ControllerOffset += HidControllersLayoutHeaderSize;
+
+            long LastEntryOffset = ControllerOffset + LastEntry * HidControllersInputEntrySize;
+
+            ControllerOffset += CurrEntry * HidControllersInputEntrySize;
+
+            long SampleCounter = Device.Memory.ReadInt64(LastEntryOffset) + 1;
+
+            Device.Memory.WriteInt64(ControllerOffset + 0x00, SampleCounter);
+            Device.Memory.WriteInt64(ControllerOffset + 0x08, SampleCounter);
+            Device.Memory.WriteInt64(ControllerOffset + 0x10, (uint)Buttons);
+
+            Device.Memory.WriteInt32(ControllerOffset + 0x18, LeftStick.DX);
+            Device.Memory.WriteInt32(ControllerOffset + 0x1c, LeftStick.DY);
+            Device.Memory.WriteInt32(ControllerOffset + 0x20, RightStick.DX);
+            Device.Memory.WriteInt32(ControllerOffset + 0x24, RightStick.DY);
+
+            return ControllerOffset;
+        }
+    }
+}