mirror of https://github.com/acidanthera/audk.git
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
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/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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SetWatchdogTimer.c
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Abstract:
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Tiano Miscellaneous Services SetWatchdogTimer service implementation
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--*/
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#include <DxeMain.h>
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#define WATCHDOG_TIMER_CALIBRATE_PER_SECOND 10000000
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EFI_STATUS
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EFIAPI
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CoreSetWatchdogTimer (
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IN UINTN Timeout,
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IN UINT64 WatchdogCode,
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IN UINTN DataSize,
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IN CHAR16 *WatchdogData OPTIONAL
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)
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/*++
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Routine Description:
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Sets the system's watchdog timer.
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Arguments:
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Timeout The number of seconds. Zero disables the timer.
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///////following three parameters are left for platform specific using
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WatchdogCode The numberic code to log. 0x0 to 0xffff are firmware
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DataSize Size of the optional data
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WatchdogData Optional Null terminated unicode string followed by binary
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data.
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Returns:
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EFI_SUCCESS Timeout has been set
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EFI_NOT_AVAILABLE_YET WatchdogTimer is not available yet
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EFI_UNSUPPORTED System does not have a timer (currently not used)
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EFI_DEVICE_ERROR Could not complete due to hardware error
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--*/
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{
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EFI_STATUS Status;
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//
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// Check our architectural protocol
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//
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if (gWatchdogTimer == NULL) {
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return EFI_NOT_AVAILABLE_YET;
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}
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//
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// Attempt to set the timeout
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//
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Status = gWatchdogTimer->SetTimerPeriod (gWatchdogTimer, MultU64x32 (Timeout, WATCHDOG_TIMER_CALIBRATE_PER_SECOND));
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//
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// Check for errors
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//
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if (EFI_ERROR (Status)) {
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return EFI_DEVICE_ERROR;
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}
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return EFI_SUCCESS;
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}
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