SetWatchdogTimer.c File Reference

#include "DxeMain.h"

Go to the source code of this file.

Macros
#define	WATCHDOG_TIMER_CALIBRATE_PER_SECOND   10000000

Functions
EFI_STATUS EFIAPI	CoreSetWatchdogTimer (IN UINTN Timeout, IN UINT64 WatchdogCode, IN UINTN DataSize, IN CHAR16 *WatchdogData OPTIONAL)

Detailed Description

UEFI Miscellaneous boot Services SetWatchdogTimer service implementation

Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file SetWatchdogTimer.c.

Macro Definition Documentation

WATCHDOG_TIMER_CALIBRATE_PER_SECOND

#define WATCHDOG_TIMER_CALIBRATE_PER_SECOND   10000000

Definition at line 11 of file SetWatchdogTimer.c.

Function Documentation

CoreSetWatchdogTimer()

EFI_STATUS EFIAPI CoreSetWatchdogTimer	(	IN UINTN	Timeout,
		IN UINT64	WatchdogCode,
		IN UINTN	DataSize,
		IN CHAR16 *WatchdogData	OPTIONAL
	)

Sets the system's watchdog timer.

Parameters

Timeout	The number of seconds to set the watchdog timer to. A value of zero disables the timer.
WatchdogCode	The numeric code to log on a watchdog timer timeout event. The firmware reserves codes 0x0000 to 0xFFFF. Loaders and operating systems may use other timeout codes.
DataSize	The size, in bytes, of WatchdogData.
WatchdogData	A data buffer that includes a Null-terminated Unicode string, optionally followed by additional binary data. The string is a description that the call may use to further indicate the reason to be logged with a watchdog event.

Returns

EFI_SUCCESS Timeout has been set

EFI_NOT_AVAILABLE_YET WatchdogTimer is not available yet

EFI_UNSUPPORTED System does not have a timer (currently not used)

EFI_DEVICE_ERROR Could not complete due to hardware error

Definition at line 37 of file SetWatchdogTimer.c.