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Set RTC initial time to be BIOS Release time. 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: David Wei <david.wei@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16639 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
David Wei 2015-01-22 05:50:45 +00:00 committed by zwei4
parent 83a276f613
commit d71c25cf2c
4 changed files with 231 additions and 40 deletions
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60
Vlv2TbltDevicePkg/PlatformDxe/Platform.c
View File

@ -1,15 +1,24 @@
/** @file
Copyright (c) 2004 - 2014, 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.
Copyright (c) 2004 - 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.
Module Name:
@ -613,11 +622,11 @@ InitializePlatform (
EFI_STATUS Status;
UINTN VarSize;
EFI_HANDLE Handle = NULL;
EFI_EVENT mEfiExitBootServicesEvent;
//
mImageHandle = ImageHandle;
EFI_EVENT RtcEvent;
VOID *RtcCallbackReg = NULL;
mImageHandle = ImageHandle;
Status = gBS->InstallProtocolInterface (
&Handle,
@ -789,13 +798,24 @@ mImageHandle = ImageHandle;
&mEfiExitBootServicesEvent
);
//
// Adjust RTC deafult time to be BIOS-built time.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_CALLBACK,
AdjustDefaultRtcTimeCallback,
NULL,
&RtcEvent
);
if (!EFI_ERROR (Status)) {
Status = gBS->RegisterProtocolNotify (
&gExitPmAuthProtocolGuid,
RtcEvent,
&RtcCallbackReg
);
//
// Tristae Lpc pins at last moment
//
if (mSystemConfiguration.TristateLpc == 1)
{
}
}
return EFI_SUCCESS;
}

29
Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.h
View File

@ -1,15 +1,15 @@
/*++
Copyright (c) 2004 - 2014, 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.
Copyright (c) 2004 - 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.
Module Name:
@ -45,6 +45,7 @@ Abstract:
#include <Library/Tpm2CommandLib.h>
#include <Library/Tpm2DeviceLib.h>
#include <Library/BaseCryptLib.h>
#include <Library/BiosIdLib.h>
#include <Protocol/GlobalNvsArea.h>
#include <Protocol/PciRootBridgeIo.h>
#include <Protocol/IsaAcpi.h>
@ -60,6 +61,7 @@ Abstract:
#include <Protocol/DataHub.h>
#include <Protocol/PciIo.h>
#include <Protocol/Speaker.h>
#include <Protocol/ExitPmAuth.h>
#include <IndustryStandard/Pci22.h>
#include <Guid/SetupVariable.h>
#include <Guid/PlatformInfo.h>
@ -634,6 +636,13 @@ InitializeObservableProtocol();
EFI_STATUS
PciBusDriverHook();
VOID
EFIAPI
AdjustDefaultRtcTimeCallback (
IN EFI_EVENT Event,
IN VOID *Context
);
typedef struct _GOP_DISPLAY_BRIGHTNESS_PROTOCOL GOP_DISPLAY_BRIGHTNESS_PROTOCOL;
typedef

22
Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.inf
View File

@ -1,15 +1,15 @@
#/*++
#
# Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved
#
# 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.
#
# Copyright (c) 1999 - 2015, Intel Corporation. All rights reserved
#
# 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.
#
#
# Module Name:
#
@ -51,6 +51,7 @@
LegacySpeaker.c
Observable/Observable.c
ExI.c
Rtc.c
[Packages]
MdePkg/MdePkg.dec
@ -125,6 +126,7 @@
gEfiGlobalNvsAreaProtocolGuid
gEfiCpuIo2ProtocolGuid
gIgdOpRegionProtocolGuid
gExitPmAuthProtocolGuid
[Pcd.common]
gPlatformModuleTokenSpaceGuid.PcdPBTNDisableInterval

160
Vlv2TbltDevicePkg/PlatformDxe/Rtc.c Normal file
View File

@ -0,0 +1,160 @@
/** @file
Adjust Default System Time.
Copyright (c) 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 <PlatformDxe.h>
//
// Date and time initial values.
// They are used if the RTC values are invalid during driver initialization
//
#define RTC_INIT_SECOND 0
#define RTC_INIT_MINUTE 0
#define RTC_INIT_HOUR 0
CHAR16 mBiosReleaseDate[20];
/**
Convert a single character to number.
It assumes the input Char is in the scope of L'0' ~ L'9' and L'A' ~ L'F'
@param Char The input char which need to change to a hex number.
**/
UINTN
CharToUint (
IN CHAR16 Char
)
{
if ((Char >= L'0') && (Char <= L'9')) {
return (UINTN) (Char - L'0');
}
if ((Char >= L'A') && (Char <= L'F')) {
return (UINTN) (Char - L'A' + 0xA);
}
ASSERT (FALSE);
return 0;
}
/**
See if YEAR field of a variable of EFI_TIME type is correct.
@param Time The time to be checked.
@retval EFI_INVALID_PARAMETER Some fields of Time are not correct.
@retval EFI_SUCCESS Time is a valid EFI_TIME variable.
**/
EFI_STATUS
CheckRtcTimeFields (
IN EFI_TIME *Time
)
{
UINT16 YearBuilt;
YearBuilt = (UINT16)(CharToUint(mBiosReleaseDate[8])*10 + CharToUint(mBiosReleaseDate[9]) + 2000);
if ((Time->Year) < YearBuilt) {
return EFI_INVALID_PARAMETER;
}
return EFI_SUCCESS;
}
/**
ExitPmAuth Protocol notification event handler, which set initial system time to be
the time when BIOS was built.
@param[in] Event Event whose notification function is being invoked.
@param[in] Context Pointer to the notification function's context.
**/
VOID
EFIAPI
AdjustDefaultRtcTimeCallback (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
EFI_TIME EfiTime;
CHAR16 BiosVersion[60];
CHAR16 BiosReleaseTime[20];
//
// Get BIOS built time from Bios-ID.
//
SetMem(BiosVersion, sizeof(BiosVersion), 0);
SetMem(mBiosReleaseDate, sizeof(mBiosReleaseDate), 0);
SetMem(BiosReleaseTime, sizeof(BiosReleaseTime), 0);
Status = GetBiosVersionDateTime (BiosVersion, mBiosReleaseDate, BiosReleaseTime);
ASSERT_EFI_ERROR(Status);
if (EFI_ERROR (Status)) {
return;
}
//
// Get current RTC time.
//
Status = gRT->GetTime (&EfiTime, NULL);
//
// Validate RTC time fields
//
Status = CheckRtcTimeFields (&EfiTime);
if (EFI_ERROR (Status)) {
//
// Date such as Dec 28th of 2015
//
// Month
// BiosReleaseDate[0] = '1';
// BiosReleaseDate[1] = '2';
//
// Day
// BiosReleaseDate[3] = '2';
// BiosReleaseDate[4] = '8';
//
//
// Year
//
// BiosReleaseDate[6] = '2';
// BiosReleaseDate[7] = '0';
// BiosReleaseDate[8] = '1'
// BiosReleaseDate[9] = '5';
EfiTime.Second = RTC_INIT_SECOND;
EfiTime.Minute = RTC_INIT_MINUTE;
EfiTime.Hour = RTC_INIT_HOUR;
EfiTime.Day = (UINT8)(CharToUint(mBiosReleaseDate[3])*10 + CharToUint(mBiosReleaseDate[4]));
EfiTime.Month = (UINT8)(CharToUint(mBiosReleaseDate[0])*10 + CharToUint(mBiosReleaseDate[1]));
EfiTime.Year = (UINT16)(CharToUint(mBiosReleaseDate[8])*10 + CharToUint(mBiosReleaseDate[9]) + 2000);
EfiTime.Nanosecond = 0;
EfiTime.TimeZone = EFI_UNSPECIFIED_TIMEZONE;
EfiTime.Daylight = 1;
DEBUG ((EFI_D_INFO, "Day:%d Month:%d Year:%d \n", (UINT32)EfiTime.Day, (UINT32)EfiTime.Month, (UINT32)EfiTime.Year));
//
// Reset time value according to new RTC configuration
//
Status = gRT->SetTime (&EfiTime);
ASSERT_EFI_ERROR(Status);
}
return;
}