ArmPkg: add ArmGenericTimerCounterLib interface

This introduces ArmGenericTimerCounterLib by adding the include file
ArmPkg/Include/Library/ArmGenericTimerCounterLib.h.

Contributed-under: TianoCore Contribution Agreement 1.0
Acked-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-By: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16074 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Include/Library/ArmGenericTimerCounterLib.h

@@ -0,0 +1,85 @@
+/** @file
+
+  Copyright (c) 2011 - 2014, ARM Ltd. All rights reserved.<BR>
+  Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
+
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __ARM_GENERIC_TIMER_COUNTER_LIB_H__
+#define __ARM_GENERIC_TIMER_COUNTER_LIB_H__
+
+VOID
+EFIAPI
+ArmGenericTimerEnableTimer (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmGenericTimerDisableTimer (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmGenericTimerSetTimerFreq (
+  IN   UINTN  FreqInHz
+  );
+
+UINTN
+EFIAPI
+ArmGenericTimerGetTimerFreq (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmGenericTimerSetTimerVal (
+  IN   UINTN   Value
+  );
+
+UINTN
+EFIAPI
+ArmGenericTimerGetTimerVal (
+  VOID
+  );
+
+UINT64
+EFIAPI
+ArmGenericTimerGetSystemCount (
+  VOID
+  );
+
+UINTN
+EFIAPI
+ArmGenericTimerGetTimerCtrlReg (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmGenericTimerSetTimerCtrlReg (
+  UINTN Value
+  );
+
+UINT64
+EFIAPI
+ArmGenericTimerGetCompareVal (
+  VOID
+  );
+
+VOID
+EFIAPI
+ArmGenericTimerSetCompareVal (
+  IN   UINT64   Value
+  );
+
+#endif