store Year/Month/Day to variable in SetWakeupTime() because PCAT RTC Alarm registers...

[mirror_edk2.git] / PcAtChipsetPkg / PcatRealTimeClockRuntimeDxe / PcRtc.c

diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
index 6c7e0ca6d77517f33efaa4d9f233ae99766fa7c4..35eb60ade486e265387c303d296a00d7513205a5 100644 (file)
--- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
+++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
@@ -1,7 +1,7 @@
 /** @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 - 2010, 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
@@ -234,6 +234,7 @@ PcRtcInit (
 \r
 **/\r
 EFI_STATUS\r
+EFIAPI\r
 PcRtcGetTime (\r
   OUT  EFI_TIME               *Time,\r
   OUT  EFI_TIME_CAPABILITIES  *Capabilities,  OPTIONAL\r
@@ -338,6 +339,7 @@ PcRtcGetTime (
 \r
 **/\r
 EFI_STATUS\r
+EFIAPI\r
 PcRtcSetTime (\r
   IN EFI_TIME                *Time,\r
   IN PC_RTC_MODULE_GLOBALS   *Global\r
@@ -455,6 +457,8 @@ PcRtcGetWakeupTime (
   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
@@ -489,36 +493,44 @@ PcRtcGetWakeupTime (
   // 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
+  *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
@@ -531,8 +543,6 @@ PcRtcGetWakeupTime (
     return EFI_DEVICE_ERROR;\r
   }\r
 \r
-  *Pending = RegisterC.Bits.Af;\r
-\r
   return EFI_SUCCESS;\r
 }\r
 \r
@@ -552,6 +562,7 @@ PcRtcGetWakeupTime (
 \r
 **/\r
 EFI_STATUS\r
+EFIAPI\r
 PcRtcSetWakeupTime (\r
   IN BOOLEAN                Enable,\r
   IN EFI_TIME               *Time,   OPTIONAL\r
@@ -564,6 +575,8 @@ PcRtcSetWakeupTime (
   UINT8                 Century;\r
   EFI_TIME_CAPABILITIES Capabilities;\r
 \r
+  ZeroMem (RtcTime);\r
+\r
   if (Enable) {\r
 \r
     if (Time == NULL) {\r
@@ -631,6 +644,17 @@ PcRtcSetWakeupTime (
 \r
   } else {\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
@@ -638,6 +662,20 @@ PcRtcSetWakeupTime (
   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