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Diffstat (limited to 'Vlv2TbltDevicePkg/PlatformDxe/Rtc.c')
-rw-r--r--Vlv2TbltDevicePkg/PlatformDxe/Rtc.c176
1 files changed, 105 insertions, 71 deletions
diff --git a/Vlv2TbltDevicePkg/PlatformDxe/Rtc.c b/Vlv2TbltDevicePkg/PlatformDxe/Rtc.c
index 9415b7e2ad..d1467a8836 100644
--- a/Vlv2TbltDevicePkg/PlatformDxe/Rtc.c
+++ b/Vlv2TbltDevicePkg/PlatformDxe/Rtc.c
@@ -1,7 +1,7 @@
/** @file
Adjust Default System Time.
- Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2015 - 2016, 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.
@@ -28,6 +28,8 @@
#define RTC_ADDRESS_REGISTER 0x70
#define RTC_DATA_REGISTER 0x71
+extern EFI_GUID gSystemRtcTimeVariableGuid;
+
CHAR16 mBiosReleaseDate[20];
@@ -91,86 +93,118 @@ CheckRtcTimeFields (
**/
VOID
EFIAPI
-AdjustDefaultRtcTimeCallback (
+AdjustRtcTimeCallback (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_STATUS Status;
EFI_TIME EfiTime;
+ EFI_TIME RtcTime;
UINT8 Century;
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);
+ CHAR16 BiosReleaseTime[20];
+ UINTN DataSize;
+ if (PcdGetBool(PcdRtcPowerFailure)) {
//
- // Set the RTC century in case that UEFI SetTime sevice does not set this register.
+ // If Rtc Power failure occured, get the valid RTC time from UEFI variable,
+ // which was saved by UEFI SetTime servie when user set system time in UEFI Shell
+ // or Setup browser.
//
- Century = DecimalToBcd8 ((UINT8) (EfiTime.Year / 100));
- IoWrite8 (RTC_ADDRESS_REGISTER, (UINT8) (RTC_ADDRESS_CENTURY | (UINT8) (IoRead8 (PCAT_RTC_ADDRESS_REGISTER) & 0x80)));
- IoWrite8 (RTC_DATA_REGISTER, Century);
-
+
+ PcdSetBool(PcdRtcPowerFailure, FALSE);
+
+ DataSize = sizeof (EFI_TIME);
+ Status = gRT->GetVariable(
+ L"SystemRtcTime",
+ &gSystemRtcTimeVariableGuid,
+ NULL,
+ &DataSize,
+ &RtcTime
+ );
+ if (!EFI_ERROR(Status)) {
+ DEBUG ((EFI_D_INFO, "Day:%d Month:%d Year:%d \n", (UINT32)RtcTime.Day, (UINT32)RtcTime.Month, (UINT32)RtcTime.Year));
+ DEBUG ((EFI_D_INFO, "Second:%d Minute:%d Hour:%d \n", (UINT32)RtcTime.Second, (UINT32)RtcTime.Minute, (UINT32)RtcTime.Hour));
+ Status = gRT->SetTime (&RtcTime);
+ //
+ // Set the RTC century in case that UEFI SetTime sevice does not set this register.
+ //
+ Century = DecimalToBcd8 ((UINT8) (RtcTime.Year / 100));
+ IoWrite8 (RTC_ADDRESS_REGISTER, (UINT8) (RTC_ADDRESS_CENTURY | (UINT8) (IoRead8 (PCAT_RTC_ADDRESS_REGISTER) & 0x80)));
+ IoWrite8 (RTC_DATA_REGISTER, Century);
+
+ } else {
+ //
+ // 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);
+
+ //
+ // Set the RTC century in case that UEFI SetTime sevice does not set this register.
+ //
+ Century = DecimalToBcd8 ((UINT8) (EfiTime.Year / 100));
+ IoWrite8 (RTC_ADDRESS_REGISTER, (UINT8) (RTC_ADDRESS_CENTURY | (UINT8) (IoRead8 (PCAT_RTC_ADDRESS_REGISTER) & 0x80)));
+ IoWrite8 (RTC_DATA_REGISTER, Century);
+ }
+ }
}
-
- return;
+ return;
}
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