/** @file\r
Header file for real time clock driver.\r
\r
-Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2017, AMD Inc. All rights reserved.<BR>\r
+\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
#include <Uefi.h>\r
\r
+#include <Guid/Acpi.h>\r
+\r
#include <Protocol/RealTimeClock.h>\r
\r
#include <Library/BaseLib.h>\r
#include <Library/PcdLib.h>\r
#include <Library/ReportStatusCodeLib.h>\r
\r
-\r
typedef struct {\r
EFI_LOCK RtcLock;\r
INT16 SavedTimeZone;\r
UINT8 Daylight;\r
+ UINT8 CenturyRtcAddress;\r
} PC_RTC_MODULE_GLOBALS;\r
\r
-#define PCAT_RTC_ADDRESS_REGISTER 0x70\r
-#define PCAT_RTC_DATA_REGISTER 0x71\r
+extern PC_RTC_MODULE_GLOBALS mModuleGlobal;\r
\r
//\r
// Dallas DS12C887 Real Time Clock\r
#define RTC_INIT_DAY 1\r
#define RTC_INIT_MONTH 1\r
\r
-//\r
-// Register initial values\r
-//\r
-#define RTC_INIT_REGISTER_A 0x26\r
-#define RTC_INIT_REGISTER_B 0x02\r
-#define RTC_INIT_REGISTER_D 0x0\r
-\r
#pragma pack(1)\r
//\r
// Register A\r
@param Timeout Tell how long it should take to wait.\r
\r
@retval EFI_DEVICE_ERROR RTC device error.\r
- @retval EFI_SUCCESS RTC is updated and ready. \r
+ @retval EFI_SUCCESS RTC is updated and ready.\r
**/\r
EFI_STATUS\r
RtcWaitToUpdate (\r
IN EFI_TIME *Time\r
);\r
\r
+/**\r
+ Get the century RTC address from the ACPI FADT table.\r
+\r
+ @return The century RTC address or 0 if not found.\r
+**/\r
+UINT8\r
+GetCenturyRtcAddress (\r
+ VOID\r
+ );\r
+\r
+/**\r
+ Notification function of ACPI Table change.\r
+\r
+ This is a notification function registered on ACPI Table change event.\r
+ It saves the Century address stored in ACPI FADT table.\r
+\r
+ @param Event Event whose notification function is being invoked.\r
+ @param Context Pointer to the notification function's context.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+PcRtcAcpiTableChangeCallback (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ );\r
#endif\r