1 files changed, 52 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Library/I2CLibPei/I2CDelayPei.c b/Vlv2TbltDevicePkg/Library/I2CLibPei/I2CDelayPei.c
new file mode 100644
index 000000000..3fedc33d9
--- /dev/null
+++ b/Vlv2TbltDevicePkg/Library/I2CLibPei/I2CDelayPei.c
@@ -0,0 +1,52 @@
+/** @file
+  MicroSecondDelay implementation of ACPI Timer.
+  
+  Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
+                                                                                   
+  This program and the accompanying materials are licensed and made available under
+  the terms and conditions of the BSD License that 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.    
+                                                                               
+--*/
+
+#include "PiPei.h"
+#include "I2CAccess.h"
+#include "I2CDelayPei.h"
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+#include <Ppi/Stall.h>
+
+/**
+  Stalls the CPU for at least the given number of microseconds.
+  Stalls the CPU for the number of microseconds specified by MicroSeconds.
+
+  @param  MicroSeconds  The minimum number of microseconds to delay.
+
+  @return EFI_STATUS
+
+**/
+EFI_STATUS
+EFIAPI
+MicroSecondDelay (
+  IN      UINTN                     MicroSeconds
+  )
+{
+
+  EFI_PEI_STALL_PPI              *StallPpi;
+  EFI_STATUS                     Status;
+  CONST EFI_PEI_SERVICES         **PeiServices;
+  
+  PeiServices = GetPeiServicesTablePointer();
+
+
+  Status = (**PeiServices).LocatePpi (PeiServices, &gEfiPeiStallPpiGuid, 0, NULL, &StallPpi);
+  ASSERT(!EFI_ERROR(Status));
+
+  StallPpi->Stall (PeiServices, StallPpi, MicroSeconds);
+
+  return EFI_SUCCESS;
+}