-/** @file
-*
-* Copyright (c) 2011, ARM Limited. All rights reserved.
-*
-* 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
-* http://opensource.org/licenses/bsd-license.php
-*
-* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-*
-**/
-
-#include <Uefi.h>
-
-#include <Library/BaseMemoryLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiRuntimeServicesTableLib.h>
-#include <Library/DebugLib.h>
-#include <Library/IoLib.h>
-
-#include <Protocol/RealTimeClock.h>
-#include <Protocol/EmbeddedExternalDevice.h>
-
-#include <Omap3530/Omap3530.h>
-#include <TPS65950.h>
-
-
-EMBEDDED_EXTERNAL_DEVICE *gTPS65950;
-INT16 TimeZone = EFI_UNSPECIFIED_TIMEZONE;
-
-/**
- Returns the current time and date information, and the time-keeping capabilities
- of the hardware platform.
-
- @param Time A pointer to storage to receive a snapshot of the current time.
- @param Capabilities An optional pointer to a buffer to receive the real time clock
- device's capabilities.
-
- @retval EFI_SUCCESS The operation completed successfully.
- @retval EFI_INVALID_PARAMETER Time is NULL.
- @retval EFI_DEVICE_ERROR The time could not be retrieved due to hardware error.
-
-**/
-EFI_STATUS
-EFIAPI
-LibGetTime (
- OUT EFI_TIME *Time,
- OUT EFI_TIME_CAPABILITIES *Capabilities
- )
-{
- EFI_STATUS Status;
- UINT8 Data;
- EFI_TPL OldTpl;
-
- if (Time == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- OldTpl = gBS->RaiseTPL(TPL_NOTIFY);
-
- /* Get time and date */
- ZeroMem(Time, sizeof(EFI_TIME));
-
- // Latch values
- Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
- Data |= BIT6;
- Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
-
- // Read registers
- Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, YEARS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
- Time->Year = 2000 + ((Data >> 4) & 0xF) * 10 + (Data & 0xF);
-
- Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MONTHS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
- Time->Month = ((Data >> 4) & 0x1) * 10 + (Data & 0xF);
-
- Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, DAYS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
- Time->Day = ((Data >> 4) & 0x3) * 10 + (Data & 0xF);
-
- Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, HOURS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
- Time->Hour = ((Data >> 4) & 0x3) * 10 + (Data & 0xF);
-
- Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MINUTES_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
- Time->Minute = ((Data >> 4) & 0x7) * 10 + (Data & 0xF);
-
- Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, SECONDS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
- Time->Second = ((Data >> 4) & 0x7) * 10 + (Data & 0xF);
-
- Time->TimeZone = TimeZone;
- // TODO: check what to use here
- Time->Daylight = EFI_TIME_ADJUST_DAYLIGHT;
-
- // Set capabilities
-
- // TODO: Set real capabilities
- if (Capabilities != NULL) {
- Capabilities->Resolution = 1;
- Capabilities->Accuracy = 50000000;
- Capabilities->SetsToZero = FALSE;
- }
-
-EXIT:
- gBS->RestoreTPL(OldTpl);
-
- return (Status == EFI_SUCCESS) ? Status : EFI_DEVICE_ERROR;
-}
-
-/**
- Sets the current local time and date information.
-
- @param Time A pointer to the current time.
-
- @retval EFI_SUCCESS The operation completed successfully.
- @retval EFI_INVALID_PARAMETER A time field is out of range.
- @retval EFI_DEVICE_ERROR The time could not be set due due to hardware error.
-
-**/
-EFI_STATUS
-EFIAPI
-LibSetTime (
- IN EFI_TIME *Time
- )
-{
- EFI_STATUS Status;
- UINT8 Data;
- UINT8 MonthDayCount[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
- EFI_TPL OldTpl;
-
- // Input validation according both to UEFI spec and hardware constraints
- // UEFI spec says valid year range is 1900-9999 but TPS only supports 2000-2099
- if ( (Time == NULL)
- || (Time->Year < 2000 || Time->Year > 2099)
- || (Time->Month < 1 || Time->Month > 12)
- || (Time->Day < 1 || Time->Day > MonthDayCount[Time->Month])
- || (Time->Hour > 23)
- || (Time->Minute > 59)
- || (Time->Second > 59)
- || (Time->Nanosecond > 999999999)
- || ((Time->TimeZone < -1440 || Time->TimeZone > 1440) && Time->TimeZone != 2047)
- ) {
- return EFI_INVALID_PARAMETER;
- }
-
- OldTpl = gBS->RaiseTPL(TPL_NOTIFY);
-
- Data = Time->Year - 2000;
- Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, YEARS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
-
- Data = ((Time->Month / 10) << 4) | (Time->Month % 10);
- Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MONTHS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
-
- Data = ((Time->Day / 10) << 4) | (Time->Day % 10);
- Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, DAYS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
-
- Data = ((Time->Hour / 10) << 4) | (Time->Hour % 10);
- Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, HOURS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
-
- Data = ((Time->Minute / 10) << 4) | (Time->Minute % 10);
- Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MINUTES_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
-
- Data = ((Time->Second / 10) << 4) | (Time->Second % 10);
- Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, SECONDS_REG), 1, &Data);
- if (Status != EFI_SUCCESS) goto EXIT;
-
- TimeZone = Time->TimeZone;
-
-EXIT:
- gBS->RestoreTPL(OldTpl);
-
- return (Status == EFI_SUCCESS) ? Status : EFI_DEVICE_ERROR;
-}
-
-/**
- Returns the current wakeup alarm clock setting.
-
- @param Enabled Indicates if the alarm is currently enabled or disabled.
- @param Pending Indicates if the alarm signal is pending and requires acknowledgement.
- @param Time The current alarm setting.
-
- @retval EFI_SUCCESS The alarm settings were returned.
- @retval EFI_INVALID_PARAMETER Any parameter is NULL.
- @retval EFI_DEVICE_ERROR The wakeup time could not be retrieved due to a hardware error.
-
-**/
-EFI_STATUS
-EFIAPI
-LibGetWakeupTime (
- OUT BOOLEAN *Enabled,
- OUT BOOLEAN *Pending,
- OUT EFI_TIME *Time
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-/**
- Sets the system wakeup alarm clock time.
-
- @param Enabled Enable or disable the wakeup alarm.
- @param Time If Enable is TRUE, the time to set the wakeup alarm for.
-
- @retval EFI_SUCCESS If Enable is TRUE, then the wakeup alarm was enabled. If
- Enable is FALSE, then the wakeup alarm was disabled.
- @retval EFI_INVALID_PARAMETER A time field is out of range.
- @retval EFI_DEVICE_ERROR The wakeup time could not be set due to a hardware error.
- @retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform.
-
-**/
-EFI_STATUS
-EFIAPI
-LibSetWakeupTime (
- IN BOOLEAN Enabled,
- OUT EFI_TIME *Time
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-/**
- This is the declaration of an EFI image entry point. This can be the entry point to an application
- written to this specification, an EFI boot service driver, or an EFI runtime driver.
-
- @param ImageHandle Handle that identifies the loaded image.
- @param SystemTable System Table for this image.
-
- @retval EFI_SUCCESS The operation completed successfully.
-
-**/
-EFI_STATUS
-EFIAPI
-LibRtcInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
- EFI_HANDLE Handle;
- UINT8 Data;
- EFI_TPL OldTpl;
-
- Status = gBS->LocateProtocol (&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950);
- ASSERT_EFI_ERROR(Status);
-
- OldTpl = gBS->RaiseTPL(TPL_NOTIFY);
- Data = 1;
- Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);
- ASSERT_EFI_ERROR(Status);
- gBS->RestoreTPL(OldTpl);
-
- // Setup the setters and getters
- gRT->GetTime = LibGetTime;
- gRT->SetTime = LibSetTime;
- gRT->GetWakeupTime = LibGetWakeupTime;
- gRT->SetWakeupTime = LibSetWakeupTime;
-
- // Install the protocol
- Handle = NULL;
- Status = gBS->InstallMultipleProtocolInterfaces (
- &Handle,
- &gEfiRealTimeClockArchProtocolGuid, NULL,
- NULL
- );
-
- return Status;
-}
-
-/**
- Fixup internal data so that EFI can be call in virtual mode.
- Call the passed in Child Notify event and convert any pointers in
- lib to virtual mode.
-
- @param[in] Event The Event that is being processed
- @param[in] Context Event Context
-**/
-VOID
-EFIAPI
-LibRtcVirtualNotifyEvent (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- return;
-}
+/** @file\r
+*\r
+* Copyright (c) 2011, ARM Limited. All rights reserved.\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
+* http://opensource.org/licenses/bsd-license.php \r
+*\r
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+*\r
+**/\r
+\r
+#include <Uefi.h>\r
+\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/UefiRuntimeServicesTableLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/IoLib.h>\r
+\r
+#include <Protocol/RealTimeClock.h>\r
+#include <Protocol/EmbeddedExternalDevice.h>\r
+\r
+#include <Omap3530/Omap3530.h>\r
+#include <TPS65950.h>\r
+\r
+\r
+EMBEDDED_EXTERNAL_DEVICE *gTPS65950;\r
+INT16 TimeZone = EFI_UNSPECIFIED_TIMEZONE;\r
+\r
+/**\r
+ Returns the current time and date information, and the time-keeping capabilities\r
+ of the hardware platform.\r
+\r
+ @param Time A pointer to storage to receive a snapshot of the current time.\r
+ @param Capabilities An optional pointer to a buffer to receive the real time clock\r
+ device's capabilities.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER Time is NULL.\r
+ @retval EFI_DEVICE_ERROR The time could not be retrieved due to hardware error.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LibGetTime (\r
+ OUT EFI_TIME *Time,\r
+ OUT EFI_TIME_CAPABILITIES *Capabilities\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINT8 Data;\r
+ EFI_TPL OldTpl;\r
+\r
+ if (Time == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ OldTpl = gBS->RaiseTPL(TPL_NOTIFY);\r
+\r
+ /* Get time and date */\r
+ ZeroMem(Time, sizeof(EFI_TIME));\r
+\r
+ // Latch values\r
+ Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+ Data |= BIT6;\r
+ Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+\r
+ // Read registers\r
+ Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, YEARS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+ Time->Year = 2000 + ((Data >> 4) & 0xF) * 10 + (Data & 0xF);\r
+\r
+ Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MONTHS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+ Time->Month = ((Data >> 4) & 0x1) * 10 + (Data & 0xF);\r
+\r
+ Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, DAYS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+ Time->Day = ((Data >> 4) & 0x3) * 10 + (Data & 0xF);\r
+\r
+ Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, HOURS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+ Time->Hour = ((Data >> 4) & 0x3) * 10 + (Data & 0xF);\r
+\r
+ Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MINUTES_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+ Time->Minute = ((Data >> 4) & 0x7) * 10 + (Data & 0xF);\r
+\r
+ Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, SECONDS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+ Time->Second = ((Data >> 4) & 0x7) * 10 + (Data & 0xF);\r
+\r
+ Time->TimeZone = TimeZone;\r
+ // TODO: check what to use here\r
+ Time->Daylight = EFI_TIME_ADJUST_DAYLIGHT;\r
+\r
+ // Set capabilities\r
+\r
+ // TODO: Set real capabilities\r
+ if (Capabilities != NULL) {\r
+ Capabilities->Resolution = 1;\r
+ Capabilities->Accuracy = 50000000;\r
+ Capabilities->SetsToZero = FALSE;\r
+ }\r
+\r
+EXIT:\r
+ gBS->RestoreTPL(OldTpl);\r
+\r
+ return (Status == EFI_SUCCESS) ? Status : EFI_DEVICE_ERROR;\r
+}\r
+\r
+/**\r
+ Sets the current local time and date information.\r
+\r
+ @param Time A pointer to the current time.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+ @retval EFI_INVALID_PARAMETER A time field is out of range.\r
+ @retval EFI_DEVICE_ERROR The time could not be set due due to hardware error.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LibSetTime (\r
+ IN EFI_TIME *Time\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ UINT8 Data;\r
+ UINT8 MonthDayCount[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };\r
+ EFI_TPL OldTpl;\r
+\r
+ // Input validation according both to UEFI spec and hardware constraints\r
+ // UEFI spec says valid year range is 1900-9999 but TPS only supports 2000-2099\r
+ if ( (Time == NULL)\r
+ || (Time->Year < 2000 || Time->Year > 2099)\r
+ || (Time->Month < 1 || Time->Month > 12)\r
+ || (Time->Day < 1 || Time->Day > MonthDayCount[Time->Month])\r
+ || (Time->Hour > 23)\r
+ || (Time->Minute > 59)\r
+ || (Time->Second > 59)\r
+ || (Time->Nanosecond > 999999999)\r
+ || ((Time->TimeZone < -1440 || Time->TimeZone > 1440) && Time->TimeZone != 2047)\r
+ ) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ OldTpl = gBS->RaiseTPL(TPL_NOTIFY);\r
+\r
+ Data = Time->Year - 2000;\r
+ Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, YEARS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+\r
+ Data = ((Time->Month / 10) << 4) | (Time->Month % 10);\r
+ Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MONTHS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+\r
+ Data = ((Time->Day / 10) << 4) | (Time->Day % 10);\r
+ Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, DAYS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+\r
+ Data = ((Time->Hour / 10) << 4) | (Time->Hour % 10);\r
+ Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, HOURS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+\r
+ Data = ((Time->Minute / 10) << 4) | (Time->Minute % 10);\r
+ Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MINUTES_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+\r
+ Data = ((Time->Second / 10) << 4) | (Time->Second % 10);\r
+ Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, SECONDS_REG), 1, &Data);\r
+ if (Status != EFI_SUCCESS) goto EXIT;\r
+\r
+ TimeZone = Time->TimeZone;\r
+\r
+EXIT:\r
+ gBS->RestoreTPL(OldTpl);\r
+\r
+ return (Status == EFI_SUCCESS) ? Status : EFI_DEVICE_ERROR;\r
+}\r
+\r
+/**\r
+ Returns the current wakeup alarm clock setting.\r
+\r
+ @param Enabled Indicates if the alarm is currently enabled or disabled.\r
+ @param Pending Indicates if the alarm signal is pending and requires acknowledgement.\r
+ @param Time The current alarm setting.\r
+\r
+ @retval EFI_SUCCESS The alarm settings were returned.\r
+ @retval EFI_INVALID_PARAMETER Any parameter is NULL.\r
+ @retval EFI_DEVICE_ERROR The wakeup time could not be retrieved due to a hardware error.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LibGetWakeupTime (\r
+ OUT BOOLEAN *Enabled,\r
+ OUT BOOLEAN *Pending,\r
+ OUT EFI_TIME *Time\r
+ )\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+/**\r
+ Sets the system wakeup alarm clock time.\r
+\r
+ @param Enabled Enable or disable the wakeup alarm.\r
+ @param Time If Enable is TRUE, the time to set the wakeup alarm for.\r
+\r
+ @retval EFI_SUCCESS If Enable is TRUE, then the wakeup alarm was enabled. If\r
+ Enable is FALSE, then the wakeup alarm was disabled.\r
+ @retval EFI_INVALID_PARAMETER A time field is out of range.\r
+ @retval EFI_DEVICE_ERROR The wakeup time could not be set due to a hardware error.\r
+ @retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LibSetWakeupTime (\r
+ IN BOOLEAN Enabled,\r
+ OUT EFI_TIME *Time\r
+ )\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+/**\r
+ This is the declaration of an EFI image entry point. This can be the entry point to an application\r
+ written to this specification, an EFI boot service driver, or an EFI runtime driver.\r
+\r
+ @param ImageHandle Handle that identifies the loaded image.\r
+ @param SystemTable System Table for this image.\r
+\r
+ @retval EFI_SUCCESS The operation completed successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LibRtcInitialize (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_HANDLE Handle;\r
+ UINT8 Data;\r
+ EFI_TPL OldTpl;\r
+\r
+ Status = gBS->LocateProtocol (&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950);\r
+ ASSERT_EFI_ERROR(Status);\r
+\r
+ OldTpl = gBS->RaiseTPL(TPL_NOTIFY);\r
+ Data = 1;\r
+ Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);\r
+ ASSERT_EFI_ERROR(Status);\r
+ gBS->RestoreTPL(OldTpl);\r
+\r
+ // Setup the setters and getters\r
+ gRT->GetTime = LibGetTime;\r
+ gRT->SetTime = LibSetTime;\r
+ gRT->GetWakeupTime = LibGetWakeupTime;\r
+ gRT->SetWakeupTime = LibSetWakeupTime;\r
+\r
+ // Install the protocol\r
+ Handle = NULL;\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &Handle,\r
+ &gEfiRealTimeClockArchProtocolGuid, NULL,\r
+ NULL\r
+ );\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+ Fixup internal data so that EFI can be call in virtual mode.\r
+ Call the passed in Child Notify event and convert any pointers in\r
+ lib to virtual mode.\r
+\r
+ @param[in] Event The Event that is being processed\r
+ @param[in] Context Event Context\r
+**/\r
+VOID\r
+EFIAPI\r
+LibRtcVirtualNotifyEvent (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ return;\r
+}\r
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