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2ef2b01e A |
1 | /** @file\r |
2 | Template library implementation to support ResetSystem Runtime call.\r | |
3402aac7 | 3 | \r |
2ef2b01e A |
4 | Fill in the templates with what ever makes you system reset.\r |
5 | \r | |
6 | \r | |
60274cca | 7 | Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r |
3402aac7 | 8 | \r |
878b807a | 9 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
2ef2b01e A |
10 | \r |
11 | **/\r | |
12 | \r | |
2ef2b01e A |
13 | #include <PiDxe.h>\r |
14 | \r | |
15 | #include <Library/BaseLib.h>\r | |
16 | #include <Library/IoLib.h>\r | |
17 | #include <Library/EfiResetSystemLib.h>\r | |
18 | \r | |
2ef2b01e A |
19 | /**\r |
20 | Resets the entire platform.\r | |
21 | \r | |
22 | @param ResetType The type of reset to perform.\r | |
23 | @param ResetStatus The status code for the reset.\r | |
24 | @param DataSize The size, in bytes, of WatchdogData.\r | |
25 | @param ResetData For a ResetType of EfiResetCold, EfiResetWarm, or\r | |
26 | EfiResetShutdown the data buffer starts with a Null-terminated\r | |
27 | Unicode string, optionally followed by additional binary data.\r | |
28 | \r | |
29 | **/\r | |
30 | EFI_STATUS\r | |
31 | EFIAPI\r | |
32 | LibResetSystem (\r | |
e7108d0e MK |
33 | IN EFI_RESET_TYPE ResetType,\r |
34 | IN EFI_STATUS ResetStatus,\r | |
35 | IN UINTN DataSize,\r | |
36 | IN CHAR16 *ResetData OPTIONAL\r | |
2ef2b01e A |
37 | )\r |
38 | {\r | |
e7108d0e MK |
39 | UINTN Address;\r |
40 | UINT8 Data;\r | |
3402aac7 | 41 | \r |
2ef2b01e | 42 | switch (ResetType) {\r |
e7108d0e MK |
43 | case EfiResetCold:\r |
44 | // system power cycle\r | |
3402aac7 | 45 | \r |
e7108d0e MK |
46 | // Example using IoLib functions to do IO.\r |
47 | Address = 0x12345678;\r | |
48 | Data = MmioRead8 (Address);\r | |
49 | MmioWrite8 (Address, Data | 0x01);\r | |
3402aac7 | 50 | \r |
e7108d0e MK |
51 | // Note this is a bad example asa MmioOr8 (Address, 0x01) does the same thing\r |
52 | break;\r | |
3402aac7 | 53 | \r |
e7108d0e MK |
54 | case EfiResetWarm:\r |
55 | // not a full power cycle, maybe memory stays around.\r | |
56 | // if not support do the same thing as EfiResetCold.\r | |
57 | break;\r | |
3402aac7 | 58 | \r |
e7108d0e MK |
59 | case EfiResetShutdown:\r |
60 | // turn off the system.\r | |
61 | // if not support do the same thing as EfiResetCold.\r | |
62 | break;\r | |
3402aac7 | 63 | \r |
e7108d0e MK |
64 | default:\r |
65 | return EFI_INVALID_PARAMETER;\r | |
2ef2b01e A |
66 | }\r |
67 | \r | |
68 | //\r | |
69 | // If we reset, we would not have returned...\r | |
70 | //\r | |
71 | return EFI_DEVICE_ERROR;\r | |
72 | }\r | |
3402aac7 | 73 | \r |
2ef2b01e A |
74 | /**\r |
75 | Initialize any infrastructure required for LibResetSystem () to function.\r | |
76 | \r | |
77 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
78 | @param SystemTable A pointer to the EFI System Table.\r | |
3402aac7 | 79 | \r |
2ef2b01e A |
80 | @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r |
81 | \r | |
82 | **/\r | |
83 | EFI_STATUS\r | |
84 | EFIAPI\r | |
85 | LibInitializeResetSystem (\r | |
86 | IN EFI_HANDLE ImageHandle,\r | |
87 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
88 | )\r | |
89 | {\r | |
90 | return EFI_SUCCESS;\r | |
91 | }\r |