diff options
Diffstat (limited to 'PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c')
| -rw-r--r-- | PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c | 88 |
1 files changed, 63 insertions, 25 deletions
diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c index 6c7e0ca6d7..35eb60ade4 100644 --- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c +++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c @@ -1,7 +1,7 @@ /** @file
RTC Architectural Protocol GUID as defined in DxeCis 0.96.
-Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2010, 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
which accompanies this distribution. The full text of the license may be found at
@@ -234,6 +234,7 @@ PcRtcInit ( **/
EFI_STATUS
+EFIAPI
PcRtcGetTime (
OUT EFI_TIME *Time,
OUT EFI_TIME_CAPABILITIES *Capabilities, OPTIONAL
@@ -338,6 +339,7 @@ PcRtcGetTime ( **/
EFI_STATUS
+EFIAPI
PcRtcSetTime (
IN EFI_TIME *Time,
IN PC_RTC_MODULE_GLOBALS *Global
@@ -455,6 +457,8 @@ PcRtcGetWakeupTime ( RTC_REGISTER_B RegisterB;
RTC_REGISTER_C RegisterC;
UINT8 Century;
+ EFI_TIME RtcTime;
+ UINTN DataSize;
//
// Check parameters for null pointers
@@ -489,36 +493,44 @@ PcRtcGetWakeupTime ( // Get the Time/Date/Daylight Savings values.
//
*Enabled = RegisterB.Bits.Aie;
- if (*Enabled) {
- Time->Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);
- Time->Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);
- Time->Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);
- Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
- Time->Month = RtcRead (RTC_ADDRESS_MONTH);
- Time->Year = RtcRead (RTC_ADDRESS_YEAR);
- } else {
- Time->Second = 0;
- Time->Minute = 0;
- Time->Hour = 0;
- Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
- Time->Month = RtcRead (RTC_ADDRESS_MONTH);
- Time->Year = RtcRead (RTC_ADDRESS_YEAR);
- }
+ *Pending = RegisterC.Bits.Af;
+
+ Time->Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);
+ Time->Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);
+ Time->Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);
+ Time->Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
+ Time->Month = RtcRead (RTC_ADDRESS_MONTH);
+ Time->Year = RtcRead (RTC_ADDRESS_YEAR);
+ Time->TimeZone = Global->SavedTimeZone;
+ Time->Daylight = Global->Daylight;
Century = RtcRead (RTC_ADDRESS_CENTURY);
-
+
//
- // Release RTC Lock.
+ // Get the alarm info from variable
//
- if (!EfiAtRuntime ()) {
- EfiReleaseLock (&Global->RtcLock);
+ Status = EfiGetVariable (
+ L"RTCALARM",
+ &gEfiCallerIdGuid,
+ NULL,
+ &DataSize,
+ &RtcTime
+ );
+ if (!EFI_ERROR (Status)) {
+ //
+ // The alarm variable exists. In this case, we read variable to get info.
+ //
+ Time->Day = RtcTime.Day;
+ Time->Month = RtcTime.Month;
+ Time->Year = RtcTime.Year;
}
//
- // Get the variable that contains the TimeZone and Daylight fields
+ // Release RTC Lock.
//
- Time->TimeZone = Global->SavedTimeZone;
- Time->Daylight = Global->Daylight;
+ if (!EfiAtRuntime ()) {
+ EfiReleaseLock (&Global->RtcLock);
+ }
//
// Make sure all field values are in correct range
@@ -531,8 +543,6 @@ PcRtcGetWakeupTime ( return EFI_DEVICE_ERROR;
}
- *Pending = RegisterC.Bits.Af;
-
return EFI_SUCCESS;
}
@@ -552,6 +562,7 @@ PcRtcGetWakeupTime ( **/
EFI_STATUS
+EFIAPI
PcRtcSetWakeupTime (
IN BOOLEAN Enable,
IN EFI_TIME *Time, OPTIONAL
@@ -564,6 +575,8 @@ PcRtcSetWakeupTime ( UINT8 Century;
EFI_TIME_CAPABILITIES Capabilities;
+ ZeroMem (RtcTime);
+
if (Enable) {
if (Time == NULL) {
@@ -631,6 +644,17 @@ PcRtcSetWakeupTime ( } else {
RegisterB.Bits.Aie = 0;
+ //
+ // if the alarm is disable, record the current setting.
+ //
+ RtcTime.Second = RtcRead (RTC_ADDRESS_SECONDS_ALARM);
+ RtcTime.Minute = RtcRead (RTC_ADDRESS_MINUTES_ALARM);
+ RtcTime.Hour = RtcRead (RTC_ADDRESS_HOURS_ALARM);
+ RtcTime.Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
+ RtcTime.Month = RtcRead (RTC_ADDRESS_MONTH);
+ RtcTime.Year = RtcRead (RTC_ADDRESS_YEAR);
+ RtcTime.TimeZone = Global->SavedTimeZone;
+ RtcTime.Daylight = Global->Daylight;
}
//
// Allow updates of the RTC registers
@@ -639,6 +663,20 @@ PcRtcSetWakeupTime ( RtcWrite (RTC_ADDRESS_REGISTER_B, RegisterB.Data);
//
+ // Set the Y/M/D info to variable as it has no corresponding hw registers.
+ //
+ Status = EfiSetVariable (
+ L"RTCALARM",
+ &gEfiCallerIdGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,
+ sizeof (RtcTime),
+ &RtcTime
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ //
// Release RTC Lock.
//
if (!EfiAtRuntime ()) {
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