da6ae66641
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Leo Duran <leo.duran@amd.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
162 lines
4.7 KiB
C
162 lines
4.7 KiB
C
/** @file
|
|
Implement EFI RealTimeClock runtime services via RTC Lib.
|
|
|
|
Currently this driver does not support runtime virtual calling.
|
|
|
|
|
|
Copyright (c) 2008 - 2009, Apple Inc. 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
|
|
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 <PiDxe.h>
|
|
#include <Library/UefiLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include <Library/RealTimeClockLib.h>
|
|
#include <Protocol/RealTimeClock.h>
|
|
|
|
EFI_HANDLE mHandle = NULL;
|
|
|
|
|
|
|
|
/**
|
|
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
|
|
GetTime (
|
|
OUT EFI_TIME *Time,
|
|
OUT EFI_TIME_CAPABILITIES *Capabilities
|
|
)
|
|
{
|
|
return LibGetTime (Time, Capabilities);
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
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
|
|
SetTime (
|
|
IN EFI_TIME *Time
|
|
)
|
|
{
|
|
return LibSetTime (Time);
|
|
}
|
|
|
|
|
|
/**
|
|
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
|
|
GetWakeupTime (
|
|
OUT BOOLEAN *Enabled,
|
|
OUT BOOLEAN *Pending,
|
|
OUT EFI_TIME *Time
|
|
)
|
|
{
|
|
return LibGetWakeupTime (Enabled, Pending, Time);
|
|
}
|
|
|
|
|
|
/**
|
|
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
|
|
SetWakeupTime (
|
|
IN BOOLEAN Enabled,
|
|
OUT EFI_TIME *Time
|
|
)
|
|
{
|
|
return LibSetWakeupTime (Enabled, Time);
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
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
|
|
InitializeRealTimeClock (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
Status = LibRtcInitialize (ImageHandle, SystemTable);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
SystemTable->RuntimeServices->GetTime = GetTime;
|
|
SystemTable->RuntimeServices->SetTime = SetTime;
|
|
SystemTable->RuntimeServices->GetWakeupTime = GetWakeupTime;
|
|
SystemTable->RuntimeServices->SetWakeupTime = SetWakeupTime;
|
|
|
|
Status = gBS->InstallMultipleProtocolInterfaces (
|
|
&mHandle,
|
|
&gEfiRealTimeClockArchProtocolGuid,
|
|
NULL,
|
|
NULL
|
|
);
|
|
|
|
return Status;
|
|
}
|
|
|