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/** @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;
}
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