mirror of https://github.com/acidanthera/audk.git
170 lines
4.6 KiB
C
170 lines
4.6 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>
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#include <PiDxe.h>
|
|
#include <Library/BaseLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/IoLib.h>
|
|
#include <Library/RealTimeClockLib.h>
|
|
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
//
|
|
// Fill in Time and Capabilities via data from you RTC
|
|
//
|
|
return 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
|
|
)
|
|
{
|
|
//
|
|
// Use Time, to set the time in your RTC hardware
|
|
//
|
|
return 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
|
|
)
|
|
{
|
|
// Not a required feature
|
|
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
|
|
)
|
|
{
|
|
// Not a required feature
|
|
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
|
|
)
|
|
{
|
|
//
|
|
// Do some initialization if required to turn on the RTC
|
|
//
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
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
|
|
)
|
|
{
|
|
//
|
|
// Only needed if you are going to support the OS calling RTC functions in virtual mode.
|
|
// You will need to call EfiConvertPointer (). To convert any stored physical addresses
|
|
// to virtual address. After the OS transitions to calling in virtual mode, all future
|
|
// runtime calls will be made in virtual mode.
|
|
//
|
|
return;
|
|
}
|
|
|
|
|
|
|