/** @file\r
RTC Architectural Protocol GUID as defined in DxeCis 0.96.\r
\r
-Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2011, 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
//\r
Status = RtcWaitToUpdate (PcdGet32 (PcdRealTimeClockUpdateTimeout));\r
if (EFI_ERROR (Status)) {\r
+ //\r
+ // Set the variable with default value if the RTC is functioning incorrectly.\r
+ //\r
+ Global->SavedTimeZone = EFI_UNSPECIFIED_TIMEZONE;\r
+ Global->Daylight = 0;\r
if (!EfiAtRuntime ()) {\r
EfiReleaseLock (&Global->RtcLock);\r
}\r
Time.Month = RTC_INIT_MONTH;\r
Time.Year = RTC_INIT_YEAR;\r
Time.Nanosecond = 0;\r
+ Time.TimeZone = EFI_UNSPECIFIED_TIMEZONE;\r
+ Time.Daylight = 0;\r
}\r
\r
//\r
// Read Register B, and inhibit updates of the RTC\r
//\r
RegisterB.Data = RtcRead (RTC_ADDRESS_REGISTER_B);\r
- RegisterB.Bits.SET = 1;\r
+ RegisterB.Bits.Set = 1;\r
RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);\r
\r
ConvertEfiTimeToRtcTime (&RtcTime, RegisterB, &Century);\r
//\r
// Allow updates of the RTC registers\r
//\r
- RegisterB.Bits.SET = 0;\r
+ RegisterB.Bits.Set = 0;\r
RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);\r
\r
//\r
Global->Daylight = Time->Daylight;\r
\r
TimerVar = Time->Daylight;\r
- TimerVar = (UINT32) ((TimerVar << 16) | Time->TimeZone);\r
+ TimerVar = (UINT32) ((TimerVar << 16) | (UINT16)(Time->TimeZone));\r
Status = EfiSetVariable (\r
L"RTC",\r
&gEfiCallerIdGuid,\r
RTC_REGISTER_B RegisterB;\r
RTC_REGISTER_C RegisterC;\r
UINT8 Century;\r
+ EFI_TIME RtcTime;\r
+ UINTN DataSize;\r
\r
//\r
// Check parameters for null pointers\r
//\r
// Get the Time/Date/Daylight Savings values.\r
//\r
- *Enabled = RegisterB.Bits.AIE;\r
- if (*Enabled) {\r
- Time->Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);\r
- Time->Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);\r
- Time->Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);\r
- Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);\r
- Time->Month = RtcRead (RTC_ADDRESS_MONTH);\r
- Time->Year = RtcRead (RTC_ADDRESS_YEAR);\r
- } else {\r
- Time->Second = 0;\r
- Time->Minute = 0;\r
- Time->Hour = 0;\r
- Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);\r
- Time->Month = RtcRead (RTC_ADDRESS_MONTH);\r
- Time->Year = RtcRead (RTC_ADDRESS_YEAR);\r
- }\r
+ *Enabled = RegisterB.Bits.Aie;\r
+ *Pending = RegisterC.Bits.Af;\r
+\r
+ Time->Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);\r
+ Time->Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);\r
+ Time->Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);\r
+ Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);\r
+ Time->Month = RtcRead (RTC_ADDRESS_MONTH);\r
+ Time->Year = RtcRead (RTC_ADDRESS_YEAR);\r
+ Time->TimeZone = Global->SavedTimeZone;\r
+ Time->Daylight = Global->Daylight;\r
\r
Century = RtcRead (RTC_ADDRESS_CENTURY);\r
- \r
+\r
//\r
- // Release RTC Lock.\r
+ // Get the alarm info from variable\r
//\r
- if (!EfiAtRuntime ()) {\r
- EfiReleaseLock (&Global->RtcLock);\r
+ Status = EfiGetVariable (\r
+ L"RTCALARM",\r
+ &gEfiCallerIdGuid,\r
+ NULL,\r
+ &DataSize,\r
+ &RtcTime\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // The alarm variable exists. In this case, we read variable to get info.\r
+ //\r
+ Time->Day = RtcTime.Day;\r
+ Time->Month = RtcTime.Month;\r
+ Time->Year = RtcTime.Year;\r
}\r
\r
//\r
- // Get the variable that contains the TimeZone and Daylight fields\r
+ // Release RTC Lock.\r
//\r
- Time->TimeZone = Global->SavedTimeZone;\r
- Time->Daylight = Global->Daylight;\r
+ if (!EfiAtRuntime ()) {\r
+ EfiReleaseLock (&Global->RtcLock);\r
+ }\r
\r
//\r
// Make sure all field values are in correct range\r
return EFI_DEVICE_ERROR;\r
}\r
\r
- *Pending = RegisterC.Bits.AF;\r
-\r
return EFI_SUCCESS;\r
}\r
\r
UINT8 Century;\r
EFI_TIME_CAPABILITIES Capabilities;\r
\r
+ ZeroMem (&RtcTime, sizeof (RtcTime));\r
+\r
if (Enable) {\r
\r
if (Time == NULL) {\r
//\r
RegisterB.Data = RtcRead (RTC_ADDRESS_REGISTER_B);\r
\r
- RegisterB.Bits.SET = 1;\r
+ RegisterB.Bits.Set = 1;\r
RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);\r
\r
if (Enable) {\r
RtcWrite (RTC_ADDRESS_MINUTES_ALARM, RtcTime.Minute);\r
RtcWrite (RTC_ADDRESS_HOURS_ALARM, RtcTime.Hour);\r
\r
- RegisterB.Bits.AIE = 1;\r
+ RegisterB.Bits.Aie = 1;\r
\r
} else {\r
- RegisterB.Bits.AIE = 0;\r
+ RegisterB.Bits.Aie = 0;\r
+ //\r
+ // if the alarm is disable, record the current setting.\r
+ //\r
+ RtcTime.Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);\r
+ RtcTime.Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);\r
+ RtcTime.Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);\r
+ RtcTime.Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);\r
+ RtcTime.Month = RtcRead (RTC_ADDRESS_MONTH);\r
+ RtcTime.Year = RtcRead (RTC_ADDRESS_YEAR);\r
+ RtcTime.TimeZone = Global->SavedTimeZone;\r
+ RtcTime.Daylight = Global->Daylight;\r
}\r
//\r
// Allow updates of the RTC registers\r
//\r
- RegisterB.Bits.SET = 0;\r
+ RegisterB.Bits.Set = 0;\r
RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);\r
\r
+ //\r
+ // Set the Y/M/D info to variable as it has no corresponding hw registers.\r
+ //\r
+ Status = EfiSetVariable (\r
+ L"RTCALARM",\r
+ &gEfiCallerIdGuid,\r
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r
+ sizeof (RtcTime),\r
+ &RtcTime\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
//\r
// Release RTC Lock.\r
//\r
\r
Time->Hour = (UINT8) (Time->Hour & 0x7f);\r
\r
- if (RegisterB.Bits.DM == 0) {\r
+ if (RegisterB.Bits.Dm == 0) {\r
Time->Year = CheckAndConvertBcd8ToDecimal8 ((UINT8) Time->Year);\r
Time->Month = CheckAndConvertBcd8ToDecimal8 (Time->Month);\r
Time->Day = CheckAndConvertBcd8ToDecimal8 (Time->Day);\r
//\r
// If time is in 12 hour format, convert it to 24 hour format\r
//\r
- if (RegisterB.Bits.MIL == 0) {\r
+ if (RegisterB.Bits.Mil == 0) {\r
if (IsPM && Time->Hour < 12) {\r
Time->Hour = (UINT8) (Time->Hour + 12);\r
}\r
//\r
RegisterD.Data = RtcRead (RTC_ADDRESS_REGISTER_D);\r
\r
- if (RegisterD.Bits.VRT == 0) {\r
+ if (RegisterD.Bits.Vrt == 0) {\r
return EFI_DEVICE_ERROR;\r
}\r
//\r
//\r
Timeout = (Timeout / 10) + 1;\r
RegisterA.Data = RtcRead (RTC_ADDRESS_REGISTER_A);\r
- while (RegisterA.Bits.UIP == 1 && Timeout > 0) {\r
+ while (RegisterA.Bits.Uip == 1 && Timeout > 0) {\r
MicroSecondDelay (10);\r
RegisterA.Data = RtcRead (RTC_ADDRESS_REGISTER_A);\r
Timeout--;\r
}\r
\r
RegisterD.Data = RtcRead (RTC_ADDRESS_REGISTER_D);\r
- if (Timeout == 0 || RegisterD.Bits.VRT == 0) {\r
+ if (Timeout == 0 || RegisterD.Bits.Vrt == 0) {\r
return EFI_DEVICE_ERROR;\r
}\r
\r
//\r
// Adjust hour field if RTC is in 12 hour mode\r
//\r
- if (RegisterB.Bits.MIL == 0) {\r
+ if (RegisterB.Bits.Mil == 0) {\r
if (Time->Hour < 12) {\r
IsPM = FALSE;\r
}\r
\r
Time->Year = (UINT16) (Time->Year % 100);\r
\r
- if (RegisterB.Bits.DM == 0) {\r
+ if (RegisterB.Bits.Dm == 0) {\r
Time->Year = DecimalToBcd8 ((UINT8) Time->Year);\r
Time->Month = DecimalToBcd8 (Time->Month);\r
Time->Day = DecimalToBcd8 (Time->Day);\r
//\r
// If we are in 12 hour mode and PM is set, then set bit 7 of the Hour field.\r
//\r
- if (RegisterB.Bits.MIL == 0 && IsPM) {\r
+ if (RegisterB.Bits.Mil == 0 && IsPM) {\r
Time->Hour = (UINT8) (Time->Hour | 0x80);\r
}\r
}\r
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