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

4 files changed, 231 insertions, 40 deletions

diff --git a/Vlv2TbltDevicePkg/PlatformDxe/Platform.c b/Vlv2TbltDevicePkg/PlatformDxe/Platform.c
index 0f3a414c5..760b8b00b 100644
--- a/Vlv2TbltDevicePkg/PlatformDxe/Platform.c
+++ b/Vlv2TbltDevicePkg/PlatformDxe/Platform.c
@@ -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;

 }

diff --git a/Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.h b/Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.h
index 42197cab1..ec69e617d 100644
--- a/Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.h
+++ b/Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.h
@@ -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

diff --git a/Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.inf b/Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.inf
index 6fa070041..daf6d7018 100644
--- a/Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.inf
+++ b/Vlv2TbltDevicePkg/PlatformDxe/PlatformDxe.inf
@@ -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

diff --git a/Vlv2TbltDevicePkg/PlatformDxe/Rtc.c b/Vlv2TbltDevicePkg/PlatformDxe/Rtc.c
new file mode 100644
index 000000000..caa042ff4
--- /dev/null
+++ b/Vlv2TbltDevicePkg/PlatformDxe/Rtc.c
@@ -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;

+}