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23c98c94 | 1 | /** @file\r |
504214c4 | 2 | UEFI Miscellaneous boot Services SetWatchdogTimer service implementation\r |
28a00297 | 3 | \r |
cd5ebaa0 | 4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
28a00297 | 6 | \r |
504214c4 | 7 | **/\r |
28a00297 | 8 | \r |
9c4ac31c | 9 | #include "DxeMain.h"\r |
28a00297 | 10 | \r |
1436aea4 | 11 | #define WATCHDOG_TIMER_CALIBRATE_PER_SECOND 10000000\r |
28a00297 | 12 | \r |
162ed594 | 13 | /**\r |
14 | Sets the system's watchdog timer.\r | |
15 | \r | |
16 | @param Timeout The number of seconds to set the watchdog timer to.\r | |
17 | A value of zero disables the timer.\r | |
18 | @param WatchdogCode The numeric code to log on a watchdog timer timeout\r | |
19 | event. The firmware reserves codes 0x0000 to 0xFFFF.\r | |
20 | Loaders and operating systems may use other timeout\r | |
21 | codes.\r | |
22 | @param DataSize The size, in bytes, of WatchdogData.\r | |
23 | @param WatchdogData A data buffer that includes a Null-terminated Unicode\r | |
24 | string, optionally followed by additional binary data.\r | |
25 | The string is a description that the call may use to\r | |
26 | further indicate the reason to be logged with a\r | |
27 | watchdog event.\r | |
28 | \r | |
29 | @return EFI_SUCCESS Timeout has been set\r | |
30 | @return EFI_NOT_AVAILABLE_YET WatchdogTimer is not available yet\r | |
31 | @return EFI_UNSUPPORTED System does not have a timer (currently not used)\r | |
32 | @return EFI_DEVICE_ERROR Could not complete due to hardware error\r | |
28a00297 | 33 | \r |
162ed594 | 34 | **/\r |
28a00297 | 35 | EFI_STATUS\r |
36 | EFIAPI\r | |
37 | CoreSetWatchdogTimer (\r | |
1436aea4 MK |
38 | IN UINTN Timeout,\r |
39 | IN UINT64 WatchdogCode,\r | |
40 | IN UINTN DataSize,\r | |
41 | IN CHAR16 *WatchdogData OPTIONAL\r | |
28a00297 | 42 | )\r |
28a00297 | 43 | {\r |
44 | EFI_STATUS Status;\r | |
45 | \r | |
46 | //\r | |
47 | // Check our architectural protocol\r | |
48 | //\r | |
49 | if (gWatchdogTimer == NULL) {\r | |
50 | return EFI_NOT_AVAILABLE_YET;\r | |
51 | }\r | |
52 | \r | |
53 | //\r | |
54 | // Attempt to set the timeout\r | |
55 | //\r | |
56 | Status = gWatchdogTimer->SetTimerPeriod (gWatchdogTimer, MultU64x32 (Timeout, WATCHDOG_TIMER_CALIBRATE_PER_SECOND));\r | |
57 | \r | |
58 | //\r | |
59 | // Check for errors\r | |
60 | //\r | |
61 | if (EFI_ERROR (Status)) {\r | |
62 | return EFI_DEVICE_ERROR;\r | |
63 | }\r | |
64 | \r | |
65 | return EFI_SUCCESS;\r | |
66 | }\r |