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3cbfba02 DW |
1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
4 | \r\r | |
9dc8036d MK |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
6 | \r | |
3cbfba02 DW |
7 | \r\r |
8 | \r | |
9 | Module Name:\r | |
10 | \r | |
11 | PlatformInfoDxe.c\r | |
12 | \r | |
13 | Abstract:\r | |
14 | Platform Info driver to public platform related HOB data\r | |
15 | \r | |
16 | --*/\r | |
17 | \r | |
18 | #include "PlatformInfoDxe.h"\r | |
19 | \r | |
20 | /**\r | |
21 | Entry point for the driver.\r | |
22 | \r | |
23 | This routine get the platform HOB data from PEI and publish\r | |
24 | as Platform Info variable that can be accessed during boot service and\r | |
25 | runtime.\r | |
26 | \r | |
27 | @param ImageHandle Image Handle.\r | |
28 | @param SystemTable EFI System Table.\r | |
29 | \r | |
30 | @retval Status Function execution status.\r | |
31 | \r | |
32 | **/\r | |
33 | EFI_STATUS\r | |
34 | EFIAPI\r | |
35 | PlatformInfoInit (\r | |
36 | IN EFI_HANDLE ImageHandle,\r | |
37 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
38 | )\r | |
39 | {\r | |
40 | EFI_STATUS Status;\r | |
41 | EFI_PLATFORM_INFO_HOB *PlatformInfoHobPtr;\r | |
42 | EFI_PEI_HOB_POINTERS GuidHob;\r | |
43 | EFI_PLATFORM_INFO_HOB TmpHob;\r | |
44 | UINTN VarSize;\r | |
45 | EFI_OS_SELECTION_HOB *OsSlectionHobPtr;\r | |
46 | UINT8 Selection;\r | |
47 | SYSTEM_CONFIGURATION SystemConfiguration;\r | |
48 | UINT8 *LpssDataHobPtr;\r | |
49 | UINT8 *LpssDataVarPtr;\r | |
50 | UINTN i;\r | |
51 | \r | |
52 | VarSize = sizeof(SYSTEM_CONFIGURATION);\r | |
53 | Status = gRT->GetVariable(\r | |
54 | NORMAL_SETUP_NAME,\r | |
55 | &gEfiNormalSetupGuid,\r | |
56 | NULL,\r | |
57 | &VarSize,\r | |
58 | &SystemConfiguration\r | |
59 | );\r | |
620f2891 TH |
60 | \r |
61 | if (EFI_ERROR (Status) || VarSize != sizeof(SYSTEM_CONFIGURATION)) {\r | |
62 | //The setup variable is corrupted\r | |
63 | VarSize = sizeof(SYSTEM_CONFIGURATION);\r | |
64 | Status = gRT->GetVariable(\r | |
65 | L"SetupRecovery",\r | |
66 | &gEfiNormalSetupGuid,\r | |
67 | NULL,\r | |
68 | &VarSize,\r | |
69 | &SystemConfiguration\r | |
70 | );\r | |
71 | ASSERT_EFI_ERROR (Status);\r | |
72 | } \r | |
3cbfba02 DW |
73 | \r |
74 | VarSize = sizeof(Selection);\r | |
75 | Status = gRT->GetVariable(\r | |
76 | L"OsSelection",\r | |
77 | &gOsSelectionVariableGuid,\r | |
78 | NULL,\r | |
79 | &VarSize,\r | |
80 | &Selection\r | |
81 | );\r | |
82 | \r | |
83 | if (EFI_ERROR(Status)) {\r | |
84 | Selection = SystemConfiguration.ReservedO;\r | |
85 | Status = gRT->SetVariable (\r | |
86 | L"OsSelection",\r | |
87 | &gOsSelectionVariableGuid,\r | |
88 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
89 | sizeof(Selection),\r | |
90 | &Selection\r | |
91 | );\r | |
92 | }\r | |
93 | \r | |
94 | GuidHob.Raw = GetHobList ();\r | |
95 | if (GuidHob.Raw != NULL) {\r | |
96 | if ((GuidHob.Raw = GetNextGuidHob (&gOsSelectionVariableGuid, GuidHob.Raw)) != NULL) {\r | |
97 | OsSlectionHobPtr = GET_GUID_HOB_DATA (GuidHob.Guid);\r | |
98 | \r | |
99 | if (OsSlectionHobPtr->OsSelectionChanged) {\r | |
100 | SystemConfiguration.ReservedO = OsSlectionHobPtr->OsSelection;\r | |
101 | \r | |
102 | //\r | |
103 | // Load Audio default configuration\r | |
104 | //\r | |
105 | SystemConfiguration.Lpe = OsSlectionHobPtr->Lpe;\r | |
106 | SystemConfiguration.PchAzalia = OsSlectionHobPtr->PchAzalia;\r | |
107 | \r | |
108 | //\r | |
109 | // Load LPSS and SCC default configurations\r | |
110 | //\r | |
111 | LpssDataHobPtr = &OsSlectionHobPtr->LpssData.LpssPciModeEnabled;\r | |
112 | LpssDataVarPtr = &SystemConfiguration.LpssPciModeEnabled;\r | |
113 | for (i = 0; i < sizeof(EFI_PLATFORM_LPSS_DATA); i++) {\r | |
114 | *LpssDataVarPtr = *LpssDataHobPtr;\r | |
115 | LpssDataVarPtr++;\r | |
116 | LpssDataHobPtr++;\r | |
117 | }\r | |
118 | \r | |
119 | SystemConfiguration.GOPEnable = TRUE;\r | |
120 | \r | |
121 | Status = gRT->SetVariable (\r | |
122 | NORMAL_SETUP_NAME,\r | |
123 | &gEfiNormalSetupGuid,\r | |
620f2891 | 124 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r |
3cbfba02 DW |
125 | sizeof(SYSTEM_CONFIGURATION),\r |
126 | &SystemConfiguration\r | |
127 | );\r | |
128 | ASSERT_EFI_ERROR (Status);\r | |
129 | }\r | |
130 | }\r | |
131 | }\r | |
132 | \r | |
133 | GuidHob.Raw = GetHobList ();\r | |
134 | if (GuidHob.Raw == NULL) {\r | |
135 | return EFI_NOT_FOUND;\r | |
136 | }\r | |
137 | \r | |
138 | if ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformInfoGuid, GuidHob.Raw)) != NULL) {\r | |
139 | PlatformInfoHobPtr = GET_GUID_HOB_DATA (GuidHob.Guid);\r | |
140 | VarSize = sizeof(EFI_PLATFORM_INFO_HOB);\r | |
141 | Status = gRT->GetVariable(\r | |
142 | L"PlatformInfo",\r | |
143 | &gEfiVlv2VariableGuid,\r | |
144 | NULL,\r | |
145 | &VarSize,\r | |
146 | &TmpHob\r | |
147 | );\r | |
148 | \r | |
149 | if (EFI_ERROR(Status) || CompareMem (&TmpHob, PlatformInfoHobPtr, VarSize)) {\r | |
150 | \r | |
151 | //\r | |
152 | // Write the Platform Info to volatile memory\r | |
153 | //\r | |
154 | Status = gRT->SetVariable(\r | |
155 | L"PlatformInfo",\r | |
156 | &gEfiVlv2VariableGuid,\r | |
620f2891 | 157 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r |
3cbfba02 DW |
158 | sizeof(EFI_PLATFORM_INFO_HOB),\r |
159 | PlatformInfoHobPtr\r | |
160 | );\r | |
161 | if (EFI_ERROR(Status)) {\r | |
162 | return Status;\r | |
163 | }\r | |
164 | }\r | |
165 | }\r | |
166 | \r | |
167 | return EFI_SUCCESS;\r | |
168 | }\r | |
169 | \r |