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1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
4 | \r\r | |
5 | This program and the accompanying materials are licensed and made available under\r\r | |
6 | the terms and conditions of the BSD License that accompanies this distribution. \r\r | |
7 | The full text of the license may be found at \r\r | |
8 | http://opensource.org/licenses/bsd-license.php. \r\r | |
9 | \r\r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r\r | |
12 | \r\r | |
13 | \r | |
14 | Module Name:\r | |
15 | \r | |
16 | PlatformInfoDxe.c\r | |
17 | \r | |
18 | Abstract:\r | |
19 | Platform Info driver to public platform related HOB data\r | |
20 | \r | |
21 | --*/\r | |
22 | \r | |
23 | #include "PlatformInfoDxe.h"\r | |
24 | \r | |
25 | /**\r | |
26 | Entry point for the driver.\r | |
27 | \r | |
28 | This routine get the platform HOB data from PEI and publish\r | |
29 | as Platform Info variable that can be accessed during boot service and\r | |
30 | runtime.\r | |
31 | \r | |
32 | @param ImageHandle Image Handle.\r | |
33 | @param SystemTable EFI System Table.\r | |
34 | \r | |
35 | @retval Status Function execution status.\r | |
36 | \r | |
37 | **/\r | |
38 | EFI_STATUS\r | |
39 | EFIAPI\r | |
40 | PlatformInfoInit (\r | |
41 | IN EFI_HANDLE ImageHandle,\r | |
42 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
43 | )\r | |
44 | {\r | |
45 | EFI_STATUS Status;\r | |
46 | EFI_PLATFORM_INFO_HOB *PlatformInfoHobPtr;\r | |
47 | EFI_PEI_HOB_POINTERS GuidHob;\r | |
48 | EFI_PLATFORM_INFO_HOB TmpHob;\r | |
49 | UINTN VarSize;\r | |
50 | EFI_OS_SELECTION_HOB *OsSlectionHobPtr;\r | |
51 | UINT8 Selection;\r | |
52 | SYSTEM_CONFIGURATION SystemConfiguration;\r | |
53 | UINT8 *LpssDataHobPtr;\r | |
54 | UINT8 *LpssDataVarPtr;\r | |
55 | UINTN i;\r | |
56 | \r | |
57 | VarSize = sizeof(SYSTEM_CONFIGURATION);\r | |
58 | Status = gRT->GetVariable(\r | |
59 | NORMAL_SETUP_NAME,\r | |
60 | &gEfiNormalSetupGuid,\r | |
61 | NULL,\r | |
62 | &VarSize,\r | |
63 | &SystemConfiguration\r | |
64 | );\r | |
620f2891 TH |
65 | \r |
66 | if (EFI_ERROR (Status) || VarSize != sizeof(SYSTEM_CONFIGURATION)) {\r | |
67 | //The setup variable is corrupted\r | |
68 | VarSize = sizeof(SYSTEM_CONFIGURATION);\r | |
69 | Status = gRT->GetVariable(\r | |
70 | L"SetupRecovery",\r | |
71 | &gEfiNormalSetupGuid,\r | |
72 | NULL,\r | |
73 | &VarSize,\r | |
74 | &SystemConfiguration\r | |
75 | );\r | |
76 | ASSERT_EFI_ERROR (Status);\r | |
77 | } \r | |
3cbfba02 DW |
78 | \r |
79 | VarSize = sizeof(Selection);\r | |
80 | Status = gRT->GetVariable(\r | |
81 | L"OsSelection",\r | |
82 | &gOsSelectionVariableGuid,\r | |
83 | NULL,\r | |
84 | &VarSize,\r | |
85 | &Selection\r | |
86 | );\r | |
87 | \r | |
88 | if (EFI_ERROR(Status)) {\r | |
89 | Selection = SystemConfiguration.ReservedO;\r | |
90 | Status = gRT->SetVariable (\r | |
91 | L"OsSelection",\r | |
92 | &gOsSelectionVariableGuid,\r | |
93 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r | |
94 | sizeof(Selection),\r | |
95 | &Selection\r | |
96 | );\r | |
97 | }\r | |
98 | \r | |
99 | GuidHob.Raw = GetHobList ();\r | |
100 | if (GuidHob.Raw != NULL) {\r | |
101 | if ((GuidHob.Raw = GetNextGuidHob (&gOsSelectionVariableGuid, GuidHob.Raw)) != NULL) {\r | |
102 | OsSlectionHobPtr = GET_GUID_HOB_DATA (GuidHob.Guid);\r | |
103 | \r | |
104 | if (OsSlectionHobPtr->OsSelectionChanged) {\r | |
105 | SystemConfiguration.ReservedO = OsSlectionHobPtr->OsSelection;\r | |
106 | \r | |
107 | //\r | |
108 | // Load Audio default configuration\r | |
109 | //\r | |
110 | SystemConfiguration.Lpe = OsSlectionHobPtr->Lpe;\r | |
111 | SystemConfiguration.PchAzalia = OsSlectionHobPtr->PchAzalia;\r | |
112 | \r | |
113 | //\r | |
114 | // Load LPSS and SCC default configurations\r | |
115 | //\r | |
116 | LpssDataHobPtr = &OsSlectionHobPtr->LpssData.LpssPciModeEnabled;\r | |
117 | LpssDataVarPtr = &SystemConfiguration.LpssPciModeEnabled;\r | |
118 | for (i = 0; i < sizeof(EFI_PLATFORM_LPSS_DATA); i++) {\r | |
119 | *LpssDataVarPtr = *LpssDataHobPtr;\r | |
120 | LpssDataVarPtr++;\r | |
121 | LpssDataHobPtr++;\r | |
122 | }\r | |
123 | \r | |
124 | SystemConfiguration.GOPEnable = TRUE;\r | |
125 | \r | |
126 | Status = gRT->SetVariable (\r | |
127 | NORMAL_SETUP_NAME,\r | |
128 | &gEfiNormalSetupGuid,\r | |
620f2891 | 129 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r |
3cbfba02 DW |
130 | sizeof(SYSTEM_CONFIGURATION),\r |
131 | &SystemConfiguration\r | |
132 | );\r | |
133 | ASSERT_EFI_ERROR (Status);\r | |
134 | }\r | |
135 | }\r | |
136 | }\r | |
137 | \r | |
138 | GuidHob.Raw = GetHobList ();\r | |
139 | if (GuidHob.Raw == NULL) {\r | |
140 | return EFI_NOT_FOUND;\r | |
141 | }\r | |
142 | \r | |
143 | if ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformInfoGuid, GuidHob.Raw)) != NULL) {\r | |
144 | PlatformInfoHobPtr = GET_GUID_HOB_DATA (GuidHob.Guid);\r | |
145 | VarSize = sizeof(EFI_PLATFORM_INFO_HOB);\r | |
146 | Status = gRT->GetVariable(\r | |
147 | L"PlatformInfo",\r | |
148 | &gEfiVlv2VariableGuid,\r | |
149 | NULL,\r | |
150 | &VarSize,\r | |
151 | &TmpHob\r | |
152 | );\r | |
153 | \r | |
154 | if (EFI_ERROR(Status) || CompareMem (&TmpHob, PlatformInfoHobPtr, VarSize)) {\r | |
155 | \r | |
156 | //\r | |
157 | // Write the Platform Info to volatile memory\r | |
158 | //\r | |
159 | Status = gRT->SetVariable(\r | |
160 | L"PlatformInfo",\r | |
161 | &gEfiVlv2VariableGuid,\r | |
620f2891 | 162 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r |
3cbfba02 DW |
163 | sizeof(EFI_PLATFORM_INFO_HOB),\r |
164 | PlatformInfoHobPtr\r | |
165 | );\r | |
166 | if (EFI_ERROR(Status)) {\r | |
167 | return Status;\r | |
168 | }\r | |
169 | }\r | |
170 | }\r | |
171 | \r | |
172 | return EFI_SUCCESS;\r | |
173 | }\r | |
174 | \r |