diff --git a/common/tigerlake/hw-gfx-gma-connectors-tc.ads b/common/tigerlake/hw-gfx-gma-connectors-tc.ads
new file mode 100644
index 0000000..d9caf49
--- /dev/null
+++ b/common/tigerlake/hw-gfx-gma-connectors-tc.ads
@@ -0,0 +1,44 @@
+--
+-- Copyright (C) 2022 Google, LLC
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; either version 2 of the License, or
+-- (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+
+with HW.GFX.GMA.DP_Info;
+
+package HW.GFX.GMA.Connectors.TC is
+
+   procedure Claim
+     (Port     : in     USBC_Port;
+      DP_Alt   : in     Boolean;
+      Success  :    out Boolean);
+   procedure Claimed (Port : USBC_Port; Is_Claimed : out Boolean);
+   procedure Connect
+     (Port     : in     USBC_Port;
+      DP_Alt   : in     Boolean;
+      Lanes    : in     DP_Lane_Count;
+      Success  :    out Boolean);
+   procedure Disconnect (Port : USBC_Port);
+
+   procedure Program_DP_Mode (P : USBC_Port; Lane_Count : Natural);
+   procedure Enable_HDMI (Port : USBC_Port);
+
+   procedure Set_Signal_Levels
+     (Port        : USBC_Port;
+      Link        : DP_Link;
+      Train_Set   : DP_Info.Train_Set);
+
+   type TC_Cold_Request_Type is (Block, Unblock);
+   procedure TC_Cold_Request
+     (Request : in     TC_Cold_Request_Type;
+      Success :    out Boolean);
+
+end HW.GFX.GMA.Connectors.TC;