/** @file\r
RTC Architectural Protocol GUID as defined in DxeCis 0.96.\r
\r
-Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
RTC_REGISTER_A RegisterA;\r
RTC_REGISTER_B RegisterB;\r
RTC_REGISTER_D RegisterD;\r
- UINT8 Century;\r
EFI_TIME Time;\r
UINTN DataSize;\r
UINT32 TimerVar;\r
Time.Month = RtcRead (RTC_ADDRESS_MONTH);\r
Time.Year = RtcRead (RTC_ADDRESS_YEAR);\r
\r
- Century = RtcRead (RTC_ADDRESS_CENTURY);\r
- \r
//\r
// Set RTC configuration after get original time\r
// The value of bit AIE should be reserved.\r
//\r
// Validate time fields\r
//\r
- Status = ConvertRtcTimeToEfiTime (&Time, Century, RegisterB);\r
+ Status = ConvertRtcTimeToEfiTime (&Time, RegisterB);\r
if (!EFI_ERROR (Status)) {\r
Status = RtcTimeFieldsValid (&Time);\r
}\r
Time.Hour = RTC_INIT_HOUR;\r
Time.Day = RTC_INIT_DAY;\r
Time.Month = RTC_INIT_MONTH;\r
- Time.Year = RTC_INIT_YEAR;\r
+ Time.Year = PcdGet16 (PcdMinimalValidYear);\r
Time.Nanosecond = 0;\r
Time.TimeZone = EFI_UNSPECIFIED_TIMEZONE;\r
Time.Daylight = 0;\r
Time.Hour = RTC_INIT_HOUR;\r
Time.Day = RTC_INIT_DAY;\r
Time.Month = RTC_INIT_MONTH;\r
- Time.Year = RTC_INIT_YEAR;\r
+ Time.Year = PcdGet16 (PcdMinimalValidYear);\r
Time.Nanosecond = 0;\r
Time.TimeZone = Global->SavedTimeZone;\r
Time.Daylight = Global->Daylight;;\r
}\r
return EFI_DEVICE_ERROR;\r
}\r
- \r
- ConvertEfiTimeToRtcTime (&Time, RegisterB, &Century);\r
+\r
+ ConvertEfiTimeToRtcTime (&Time, RegisterB);\r
\r
//\r
// Set the Y/M/D info to variable as it has no corresponding hw registers.\r
{\r
EFI_STATUS Status;\r
RTC_REGISTER_B RegisterB;\r
- UINT8 Century;\r
\r
//\r
// Check parameters for null pointer\r
Time->Month = RtcRead (RTC_ADDRESS_MONTH);\r
Time->Year = RtcRead (RTC_ADDRESS_YEAR);\r
\r
- Century = RtcRead (RTC_ADDRESS_CENTURY);\r
- \r
//\r
// Release RTC Lock.\r
//\r
//\r
// Make sure all field values are in correct range\r
//\r
- Status = ConvertRtcTimeToEfiTime (Time, Century, RegisterB);\r
+ Status = ConvertRtcTimeToEfiTime (Time, RegisterB);\r
if (!EFI_ERROR (Status)) {\r
Status = RtcTimeFieldsValid (Time);\r
}\r
EFI_STATUS Status;\r
EFI_TIME RtcTime;\r
RTC_REGISTER_B RegisterB;\r
- UINT8 Century;\r
UINT32 TimerVar;\r
\r
if (Time == NULL) {\r
RegisterB.Bits.Set = 1;\r
RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);\r
\r
- ConvertEfiTimeToRtcTime (&RtcTime, RegisterB, &Century);\r
+ ConvertEfiTimeToRtcTime (&RtcTime, RegisterB);\r
\r
RtcWrite (RTC_ADDRESS_SECONDS, RtcTime.Second);\r
RtcWrite (RTC_ADDRESS_MINUTES, RtcTime.Minute);\r
RtcWrite (RTC_ADDRESS_DAY_OF_THE_MONTH, RtcTime.Day);\r
RtcWrite (RTC_ADDRESS_MONTH, RtcTime.Month);\r
RtcWrite (RTC_ADDRESS_YEAR, (UINT8) RtcTime.Year);\r
- RtcWrite (RTC_ADDRESS_CENTURY, Century);\r
\r
//\r
// Allow updates of the RTC registers\r
EFI_STATUS Status;\r
RTC_REGISTER_B RegisterB;\r
RTC_REGISTER_C RegisterC;\r
- UINT8 Century;\r
EFI_TIME RtcTime;\r
UINTN DataSize;\r
\r
Time->TimeZone = Global->SavedTimeZone;\r
Time->Daylight = Global->Daylight;\r
\r
- Century = RtcRead (RTC_ADDRESS_CENTURY);\r
-\r
//\r
// Get the alarm info from variable\r
//\r
//\r
// Make sure all field values are in correct range\r
//\r
- Status = ConvertRtcTimeToEfiTime (Time, Century, RegisterB);\r
+ Status = ConvertRtcTimeToEfiTime (Time, RegisterB);\r
if (!EFI_ERROR (Status)) {\r
Status = RtcTimeFieldsValid (Time);\r
}\r
EFI_STATUS Status;\r
EFI_TIME RtcTime;\r
RTC_REGISTER_B RegisterB;\r
- UINT8 Century;\r
EFI_TIME_CAPABILITIES Capabilities;\r
\r
ZeroMem (&RtcTime, sizeof (RtcTime));\r
RegisterB.Data = RtcRead (RTC_ADDRESS_REGISTER_B);\r
\r
if (Enable) {\r
- ConvertEfiTimeToRtcTime (&RtcTime, RegisterB, &Century);\r
+ ConvertEfiTimeToRtcTime (&RtcTime, RegisterB);\r
} else {\r
//\r
// if the alarm is disable, record the current setting.\r
\r
@param Time On input, the time data read from RTC to convert\r
On output, the time converted to UEFI format\r
- @param Century Value of century read from RTC.\r
@param RegisterB Value of Register B of RTC, indicating data mode\r
and hour format.\r
\r
EFI_STATUS\r
ConvertRtcTimeToEfiTime (\r
IN OUT EFI_TIME *Time,\r
- IN UINT8 Century,\r
IN RTC_REGISTER_B RegisterB\r
)\r
{\r
BOOLEAN IsPM;\r
+ UINT8 Century;\r
\r
if ((Time->Hour & 0x80) != 0) {\r
IsPM = TRUE;\r
Time->Minute = CheckAndConvertBcd8ToDecimal8 (Time->Minute);\r
Time->Second = CheckAndConvertBcd8ToDecimal8 (Time->Second);\r
}\r
- Century = CheckAndConvertBcd8ToDecimal8 (Century);\r
\r
if (Time->Year == 0xff || Time->Month == 0xff || Time->Day == 0xff ||\r
- Time->Hour == 0xff || Time->Minute == 0xff || Time->Second == 0xff ||\r
- Century == 0xff) {\r
+ Time->Hour == 0xff || Time->Minute == 0xff || Time->Second == 0xff) {\r
return EFI_INVALID_PARAMETER;\r
}\r
\r
+ //\r
+ // For minimal/maximum year range [1970, 2069],\r
+ // Century is 19 if RTC year >= 70,\r
+ // Century is 20 otherwise.\r
+ //\r
+ Century = (UINT8) (PcdGet16 (PcdMinimalValidYear) / 100);\r
+ if (Time->Year < PcdGet16 (PcdMinimalValidYear) % 100) {\r
+ Century++;\r
+ }\r
Time->Year = (UINT16) (Century * 100 + Time->Year);\r
\r
//\r
IN EFI_TIME *Time\r
)\r
{\r
- if (Time->Year < 1998 ||\r
- Time->Year > 2099 ||\r
+ if (Time->Year < PcdGet16 (PcdMinimalValidYear) ||\r
+ Time->Year > PcdGet16 (PcdMaximalValidYear) ||\r
Time->Month < 1 ||\r
Time->Month > 12 ||\r
(!DayValid (Time)) ||\r
@param Time On input, the time data read from UEFI to convert\r
On output, the time converted to RTC format\r
@param RegisterB Value of Register B of RTC, indicating data mode\r
- @param Century It is set according to EFI_TIME Time.\r
-\r
**/\r
VOID\r
ConvertEfiTimeToRtcTime (\r
IN OUT EFI_TIME *Time,\r
- IN RTC_REGISTER_B RegisterB,\r
- OUT UINT8 *Century\r
+ IN RTC_REGISTER_B RegisterB\r
)\r
{\r
BOOLEAN IsPM;\r
}\r
}\r
//\r
- // Set the Time/Date/Daylight Savings values.\r
+ // Set the Time/Date values.\r
//\r
- *Century = DecimalToBcd8 ((UINT8) (Time->Year / 100));\r
-\r
Time->Year = (UINT16) (Time->Year % 100);\r
\r
if (RegisterB.Bits.Dm == 0) {\r