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878ddf1f 1/*++\r
2\r
3Copyright (c) 2006, 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\r
30#define ALIGNMENT 1\r
31\r
32//\r
33// Define GET_PAD_SIZE to optimize compiler\r
34//\r
35#if ((ALIGNMENT == 0) || (ALIGNMENT == 1))\r
36#define GET_PAD_SIZE(a) (0)\r
37#else\r
38#define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))\r
39#endif\r
40\r
41#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))\r
42\r
43#define GET_VARIABLE_DATA_PTR(a) \\r
44 (UINT8 *) ((UINTN) GET_VARIABLE_NAME_PTR (a) + (a)->NameSize + GET_PAD_SIZE ((a)->NameSize))\r
45\r
46typedef struct {\r
47 VARIABLE_HEADER *CurrPtr;\r
48 VARIABLE_HEADER *EndPtr;\r
49 VARIABLE_HEADER *StartPtr;\r
50} VARIABLE_POINTER_TRACK;\r
51\r
52#define VARIABLE_INDEX_TABLE_VOLUME 122\r
53\r
54#define EFI_VARIABLE_INDEX_TABLE_GUID \\r
55 { 0x8cfdb8c8, 0xd6b2, 0x40f3, { 0x8e, 0x97, 0x02, 0x30, 0x7c, 0xc9, 0x8b, 0x7c } }\r
56\r
57typedef struct {\r
58 UINT16 Length;\r
59 UINT16 GoneThrough;\r
60 VARIABLE_HEADER *EndPtr;\r
61 VARIABLE_HEADER *StartPtr;\r
62 UINT16 Index[VARIABLE_INDEX_TABLE_VOLUME];\r
63} VARIABLE_INDEX_TABLE;\r
64\r
65extern EFI_GUID gEfiVariableIndexTableGuid;\r
66\r
67//\r
68// Functions\r
69//\r
70EFI_STATUS\r
71EFIAPI\r
72PeimInitializeVariableServices (\r
73 IN EFI_FFS_FILE_HEADER *FfsHeader,\r
74 IN EFI_PEI_SERVICES **PeiServices\r
75 )\r
76/*++\r
77\r
78Routine Description:\r
79\r
80 TODO: Add function description\r
81\r
82Arguments:\r
83\r
84 FfsHeader - TODO: add argument description\r
85 PeiServices - TODO: add argument description\r
86\r
87Returns:\r
88\r
89 TODO: add return values\r
90\r
91--*/\r
92;\r
93\r
94EFI_STATUS\r
95EFIAPI\r
96PeiGetVariable (\r
97 IN EFI_PEI_SERVICES **PeiServices,\r
98 IN CHAR16 *VariableName,\r
99 IN EFI_GUID * VendorGuid,\r
100 OUT UINT32 *Attributes OPTIONAL,\r
101 IN OUT UINTN *DataSize,\r
102 OUT VOID *Data\r
103 )\r
104/*++\r
105\r
106Routine Description:\r
107\r
108 TODO: Add function description\r
109\r
110Arguments:\r
111\r
112 PeiServices - TODO: add argument description\r
113 VariableName - TODO: add argument description\r
114 VendorGuid - TODO: add argument description\r
115 Attributes - TODO: add argument description\r
116 DataSize - TODO: add argument description\r
117 Data - TODO: add argument description\r
118\r
119Returns:\r
120\r
121 TODO: add return values\r
122\r
123--*/\r
124;\r
125\r
126EFI_STATUS\r
127EFIAPI\r
128PeiGetNextVariableName (\r
129 IN EFI_PEI_SERVICES **PeiServices,\r
130 IN OUT UINTN *VariableNameSize,\r
131 IN OUT CHAR16 *VariableName,\r
132 IN OUT EFI_GUID *VendorGuid\r
133 )\r
134/*++\r
135\r
136Routine Description:\r
137\r
138 TODO: Add function description\r
139\r
140Arguments:\r
141\r
142 PeiServices - TODO: add argument description\r
143 VariableNameSize - TODO: add argument description\r
144 VariableName - TODO: add argument description\r
145 VendorGuid - TODO: add argument description\r
146\r
147Returns:\r
148\r
149 TODO: add return values\r
150\r
151--*/\r
152;\r
153\r
154#endif // _PEI_VARIABLE_H\r