1 files changed, 96 insertions, 0 deletions
diff --git a/ReferenceCode/ME/ActiveManagement/StartWatchDog/Pei/StartWatchDog.c b/ReferenceCode/ME/ActiveManagement/StartWatchDog/Pei/StartWatchDog.c
new file mode 100644
index 0000000..87c0818
--- /dev/null
+++ b/ReferenceCode/ME/ActiveManagement/StartWatchDog/Pei/StartWatchDog.c
@@ -0,0 +1,96 @@
+/** @file
+  Start Watchdog timer in PEI phase
+
+@copyright
+  Copyright (c) 1999 - 2012 Intel Corporation. All rights
+  reserved This software and associated documentation (if any)
+  is furnished under a license and may only be used or copied in
+  accordance with the terms of the license. Except as permitted
+  by such license, no part of this software or documentation may
+  be reproduced, stored in a retrieval system, or transmitted in
+  any form or by any means without the express written consent
+  of Intel Corporation.
+
+  This file contains an 'Intel Peripheral Driver' and uniquely
+  identified as "Intel Reference Module" and is
+  licensed for Intel CPUs and chipsets under the terms of your
+  license agreement with Intel or your vendor.  This file may
+  be modified by the user, subject to additional terms of the
+  license agreement
+**/
+
+//
+// External include files do NOT need to be explicitly specified in real EDKII
+// environment
+//
+#if !defined(EDK_RELEASE_VERSION) || (EDK_RELEASE_VERSION < 0x00020000)
+#include "EdkIIGluePeim.h"
+#include "StartWatchDog.h"
+#include "MeLibPei.h"
+#endif
+
+/**
+  Perform the platform spefific initializations.
+
+  @param[in] FfsHeader            FFS file header pointer of this driver.
+  @param[in] PeiServices          General purpose services available to every PEIM.
+
+  @retval EFI_SUCCESS             if the interface could be successfully installed.
+**/
+EFI_STATUS
+EFIAPI
+PeiInitStartWatchDog (
+  IN EFI_FFS_FILE_HEADER          *FfsHeader,
+  IN EFI_PEI_SERVICES             **PeiServices
+  )
+{
+  EFI_STATUS    Status;
+  EFI_BOOT_MODE BootMode;
+  PEI_HECI_PPI  *HeciPpi;
+  UINT32        HeciMemBar;
+  UINT16        WaitTimerBios;
+  UINT32        MeStatus;
+
+  Status = (*PeiServices)->GetBootMode (PeiServices, &BootMode);
+  ASSERT_EFI_ERROR (Status);
+
+  if (!EFI_ERROR (Status) && (BootMode == BOOT_ON_S3_RESUME)) {
+    return EFI_SUCCESS;
+  }
+
+  if (PeiAmtWatchDog (PeiServices)) {
+    Status = PeiServicesLocatePpi (
+              &gPeiHeciPpiGuid,   // GUID
+              0,                  // INSTANCE
+              NULL,               // EFI_PEI_PPI_DESCRIPTOR
+              (VOID **) &HeciPpi  // PPI
+              );
+    ASSERT_EFI_ERROR (Status);
+
+    Status = HeciPpi->InitializeHeci (PeiServices, HeciPpi, &HeciMemBar);
+    if (!EFI_ERROR (Status)) {
+      ///
+      /// Get ME Status
+      ///
+      Status = HeciPpi->GetMeStatus (PeiServices, &MeStatus);
+      ASSERT_EFI_ERROR (Status);
+
+      ///
+      /// If ME is ready, send AsfStartWatchDog message
+      ///
+      if (ME_STATUS_ME_STATE_ONLY (MeStatus) == ME_READY) {
+        WaitTimerBios = PeiAmtWatchTimerBiosGet (PeiServices);
+
+        Status = PeiHeciAsfStartWatchDog (
+                  PeiServices,
+                  HeciPpi,
+                  HeciMemBar,
+                  WaitTimerBios
+                  );
+        ASSERT_EFI_ERROR (Status);
+      }
+    }
+  }
+
+  return Status;
+}