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7ff7768d 1/*++\r
2\r
3Copyright (c) 2006 - 2007, Intel Corporation\r
4All rights reserved. This program and the accompanying materials\r
5are licensed and made available under the terms and conditions of the BSD License\r
6which accompanies this distribution. The full text of the license may be found at\r
7http://opensource.org/licenses/bsd-license.php\r
8\r
9THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
10WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
11\r
12Module Name:\r
13\r
14 Variable.h\r
15\r
16Abstract:\r
17\r
18 Tiano PEIM to provide the variable functionality\r
19\r
20--*/\r
21\r
22#ifndef _PEI_VARIABLE_H\r
23#define _PEI_VARIABLE_H\r
24\r
25//\r
26// BugBug: We need relcate the head file.\r
27//\r
28#include <Common/Variable.h>\r
29#include <VarMachine.h>\r
30\r
31//\r
32// Define GET_PAD_SIZE to optimize compiler\r
33//\r
34#if ((ALIGNMENT == 0) || (ALIGNMENT == 1))\r
35#define GET_PAD_SIZE(a) (0)\r
36#else\r
37#define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))\r
38#endif\r
39\r
40#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))\r
41\r
42#define GET_VARIABLE_DATA_PTR(a) \\r
43 (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (a) + (a)->NameSize + GET_PAD_SIZE ((a)->NameSize))\r
44\r
45typedef struct {\r
46 VARIABLE_HEADER *CurrPtr;\r
47 VARIABLE_HEADER *EndPtr;\r
48 VARIABLE_HEADER *StartPtr;\r
49} VARIABLE_POINTER_TRACK;\r
50\r
51#define VARIABLE_INDEX_TABLE_VOLUME 122\r
52\r
53#define EFI_VARIABLE_INDEX_TABLE_GUID \\r
54 { 0x8cfdb8c8, 0xd6b2, 0x40f3, { 0x8e, 0x97, 0x02, 0x30, 0x7c, 0xc9, 0x8b, 0x7c } }\r
55\r
56typedef struct {\r
57 UINT16 Length;\r
58 UINT16 GoneThrough;\r
59 VARIABLE_HEADER *EndPtr;\r
60 VARIABLE_HEADER *StartPtr;\r
61 UINT16 Index[VARIABLE_INDEX_TABLE_VOLUME];\r
62} VARIABLE_INDEX_TABLE;\r
63\r
64\r
65//\r
66// Functions\r
67//\r
68EFI_STATUS\r
69EFIAPI\r
70PeimInitializeVariableServices (\r
71 IN EFI_FFS_FILE_HEADER *FfsHeader,\r
72 IN EFI_PEI_SERVICES **PeiServices\r
73 )\r
74/*++\r
75\r
76Routine Description:\r
77\r
78 TODO: Add function description\r
79\r
80Arguments:\r
81\r
82 FfsHeader - TODO: add argument description\r
83 PeiServices - TODO: add argument description\r
84\r
85Returns:\r
86\r
87 TODO: add return values\r
88\r
89--*/\r
90;\r
91\r
92EFI_STATUS\r
93EFIAPI\r
94PeiGetVariable (\r
95 IN EFI_PEI_SERVICES **PeiServices,\r
96 IN CHAR16 *VariableName,\r
97 IN EFI_GUID * VendorGuid,\r
98 OUT UINT32 *Attributes OPTIONAL,\r
99 IN OUT UINTN *DataSize,\r
100 OUT VOID *Data\r
101 )\r
102/*++\r
103\r
104Routine Description:\r
105\r
106 TODO: Add function description\r
107\r
108Arguments:\r
109\r
110 PeiServices - TODO: add argument description\r
111 VariableName - TODO: add argument description\r
112 VendorGuid - TODO: add argument description\r
113 Attributes - TODO: add argument description\r
114 DataSize - TODO: add argument description\r
115 Data - TODO: add argument description\r
116\r
117Returns:\r
118\r
119 TODO: add return values\r
120\r
121--*/\r
122;\r
123\r
124EFI_STATUS\r
125EFIAPI\r
126PeiGetNextVariableName (\r
127 IN EFI_PEI_SERVICES **PeiServices,\r
128 IN OUT UINTN *VariableNameSize,\r
129 IN OUT CHAR16 *VariableName,\r
130 IN OUT EFI_GUID *VendorGuid\r
131 )\r
132/*++\r
133\r
134Routine Description:\r
135\r
136 TODO: Add function description\r
137\r
138Arguments:\r
139\r
140 PeiServices - TODO: add argument description\r
141 VariableNameSize - TODO: add argument description\r
142 VariableName - TODO: add argument description\r
143 VendorGuid - TODO: add argument description\r
144\r
145Returns:\r
146\r
147 TODO: add return values\r
148\r
149--*/\r
150;\r
151\r
152/**\r
153 Get one variable by the index count.\r
154\r
155 @param IndexTable The pointer to variable index table.\r
156 @param Count The index count of variable in index table.\r
157\r
158 @return The pointer to variable header indexed by count.\r
159\r
160**/\r
161VARIABLE_HEADER *\r
162GetVariableByIndex (\r
163 IN VARIABLE_INDEX_TABLE *IndexTable,\r
164 IN UINT32 Count\r
165 );\r
166\r
167/**\r
168 Record Variable in VariableIndex HOB.\r
169\r
170 Record Variable in VariableIndex HOB and update the length of variable index table.\r
171\r
172 @param IndexTable The pointer to variable index table.\r
173 @param Variable The pointer to the variable that will be recorded.\r
174\r
175 @retval VOID\r
176\r
177**/\r
178VOID\r
179VariableIndexTableUpdate (\r
180 IN OUT VARIABLE_INDEX_TABLE *IndexTable,\r
181 IN VARIABLE_HEADER *Variable\r
182 );\r
183\r
184#endif // _PEI_VARIABLE_H\r